The potential regulatory sites responsible for the decrease of circulating prolactin (PRL) levels shown by many photoperiodic mammals following prolonged exposure to short days was investigated in Siberian hamsters that had been maintained under a stimulatory, long‐day photoperiod, and in hamsters that had been shifted to a nonstimulatory, short‐day photoperiod for 8–10 weeks. The ability of anterior pituitary fragments (AP) from each of these groups to release prolactin was evaluated in pituitary tissue cultured alone and also in pituitary tissue co‐cultured with hypothalamic fragments (HF), using a perifusion tissue culture system. The perfusate from these cultures was collected every 1/2 h for 8 h, and was assayed for basal levels of prolactin using radioimmunoassay. For AP tissue cultured alone, there was a robust reduction in prolactin release by the fragments harvested from short‐day housed animals. In AP tissue harvested from long‐day exposed animals, co‐culture with either long‐ or short‐day HF did not induce significant changes in basal PRL release. Similarly, co‐culture with short‐day HF did not significantly alter PRL release in short‐day APs. However, there was a significant increase in release when short‐day APs were co‐cultured with long‐day HF. These results suggest a direct effect of photoperiod on PRL synthesis and/or release at the level of the pituitary. However, the altered responsiveness of short‐day pituitaries could be the result of previous, chronic inhibitory hypothalamic input during short‐day exposure. A follow‐up study was conducted to investigate the ability of vasoactive intestinal peptide (VIP) to stimulate PRL release from long‐ and short‐day APs. Results indicated that the ability of VIP to stimulate PRL release is both photoperiod and dose dependent.


Integration of imaging of calcification and multi-omics datasets from human CAVD patients and tissues allows for the discovery of novel mechanistic pathways that can be functionally validated in vitro and in vivo to discover anti-calcification drugs to assess clinically.


Metallic cyanides are among the most common corrosive pollutants in crude oil. In order to eliminate the cyanide ions in the petroleum feedstock, some scavengers of cyanides have been synthesized. A strecker intermediates that act as scavengers of cyanides were synthesized; which have shown different chemical reactivity, measured as reaction yield, between 66 and 94 %, when cyanide is the nucelophile species and thus this can be considered as their activity as cyanide scavengers. On another hand, the electron density ρ(r) distribution is a fundamental concept to understand the reactivity of molecular entities and therefore, it can explain the phenomena of nucleophilic, electrophilic and radical attacks on a particular structure. The frontier-electron density theory of chemical reactivity by Fukui explained the importance of the highest occupied molecular orbital (HOMO) and lowest unoccupied molecular orbital (LUMO) in the chemical reactions. Therefore, the Fukui function f(r) and local softness s(r) are of great interest in chemical reactions, because these parameters could describe A DFT Study of Strecker Intermediates as Scavengers for Cyanides


A method for manufacturing a transparent thin film transistor is provided to reduce a manufacturing cost by simplifying a manufacturing process of the transparent thin film transistor. A gate electrode(21) is formed on a substrate(10). A gate insulating layer(23) is formed on the gate electrode. A transparent semiconductor layer(25) of a patterned state is formed on the gate insulating layer. A photoresist layer(30) is formed on the transparent semiconductor layer in order to expose the source region and the drain region of the transparent semiconductor layer. The exposed source and drain regions are surface-processed by using the photoresist layer as a mask. A conductive layer is formed on an entire surface of the substrate. The conductive layer is patterned by removing the photoresist layer so that a source electrode contacts the source region of the transparent semiconductor layer and a drain electrode contacts the drain region of the transparent semiconductor layer.


In centrifugal compressors, the diffuser and the volute have strong influences on the flow discharged from the impeller and thus also on the performance. In particular, a key parameter is the radial velocity at the volute inlet; it determines the swirl velocity, which is dissipated as a loss, i.e., it results in performance degradation. With the aim of reducing the swirl loss, a new type of volute with a modified inlet height was tested in this study. The volute inlet height was modified to 6 mm and 7 mm from the original height of 5 mm. The reliability of our computations was tested by comparison of the results of a model with this original height with experimental data. Flow analyses were conducted not only at the design mass flow rate but also at lower and higher mass flow rates. A higher total-to-total efficiency was obtained as a result of the linear increases of the volute inlet height from the diffuser outlet to 6 mm and 7 mm. Our detailed investigation of the simulated flow fields shows that the flow characteristics for a volute inlet height of 6 mm are better than those for a volute inlet height of 5 mm. These results clearly show that a greater volute inlet height assists in pressure recovery and reduces swirl loss in the volute. However, the volute inlet height of 7 mm results in larger hub separation and more energy loss, and thus in inferior performance. Therefore, the hub separation and the radial velocity at the volute inlet strongly influence the performance.


Objective To investigate the effect of local hypeythermia combined with best support treatments(BSC) on cancer cachexia of digestive tract and to offer value clinical data for palliative treatments of patients with advanced malignant tumor.Methods Fifty-eight patients with cancer cachexia of digestive tract were randomly divided into two groups,the patients in the study group(n = 30) were given local hypeythermia plus BSC,and the patients in the control group(n = 28) were given BSC alone.The subjective global assessment of nutritional status(SGA) and lab examnations(ALB,pre-ALB and TLC) after 1 month were evaluated.Results The evaluation of the SGA and ALB,pre-ALB and TLC in both groups had significant difference(P 0.01).Conclusion Local hypeythermia can change the prognosis and prohibit the progressing of cancer cachexia.


Within the framework of linear viscoelasticity this paper deals with the study of spatial behavior of solutions describing harmonic vibrations in a right cylinder of finite extent. Some exponential decay estimates of Saint–Venant type, in terms of the distance from the excited end of the cylinder are obtained from a first-order differential inequality concerning an appropriate measure associated with the amplitude of the steady-state vibration. The dissipative mechanism guarantees the validity of the result for every value of the frequency of vibration and for the class of viscoelastic materials compatible with thermodynamics whose relaxation tensor is supposed to be symmetric and sufficiently regular. The case of a semi-infinite cylinder is also studied, and some alternatives of Phragmén–Lindelöf type are established. Introduction. The present paper is concerned with the study of the spatial behavior of solutions in a right cylinder made of an anisotropic and homogeneous viscoelastic solid. We consider a finite cylinder subject to boundary data varying harmonically in time on one end, while the other end and lateral surface are clamped. The history of the displacement up to time t = 0 is supposed to be known and the body force is assumed to be absent. Initial boundary value problems of this type have been treated by Flavin and Knops [1] in the framework of the linearly damped wave equation and the linearly elastic damped cylinder. They proved that in both cases the existence of damping gives rise ultimately to a steady-state oscillation, whose amplitude decays exponentially from the excited end provided the exciting frequency is less than a certain critical value. The latter case has Received May 16, 2008. 2000 Mathematics Subject Classification. Primary 74D05, 74G50; Secondary 74H45, 74E10.


The operation conditions of the direct-driven permanent-magnet synchronous generator (PMSG) wind turbine under unbalanced grid voltage conditions are investigated in detail.Based on the different operation requirements for the wind turbines under unbalanced grid voltage conditions,the control schemes of the grid-side converter with three selective control targets are proposed.Meanwhile,the positive and negative sequence current reference values are achieved based on the positive sequence grid voltage orientation.The control objectives are achieved with the proposed control strategies,by restraining the double supply frequency oscillations of active power (or DC-link voltage),or restraining the double supply frequency oscillations of reactive power,or restraining the negative sequence grid side current,and the operational stability and reliability of the PMSG system during the network unbalance can be further improved.The simulations and contrastive analysis of the PMSG system behavior are used to verify the validity and efficiency of the proposed control strategy.


Purpose Made preparation for developing new research field of Soybean Isoflavones.Method Generalized research advance and future of Soybean Isoflavones through looking into and quoting document.Result The paper introduced the species、distribution and physiological property of Soybean Isoflavones,while generalized its broad and abroad research advance;It use foreground were introduced.Conclusion With the development of research on Soybean Isoflavones,new research field and application value of Soybean Isoflavones would appear.


Abstract The purpose of this study was to test a mediational model of risk and protective factors associated with the psychological adjustment of caregivers of head-injured patients. Forty-three caregivers of patients who had suffered a head injury participated in the study. Findings strongly supported hypotheses. Caregiver burden was associated with poorer psychological adjustment. Social support and a higher percentage of approach coping strategies relative to overall coping strategies were associated with better psychological adjustment. As predicted, caregiver burden showed a direct relationship to psychological adjustment, while social support showed an indirect relationship to adjustment mediated by percentage approach coping.


The faults of the main motor for the piercing mill of Φ100 pipe rolling block are analyzed in detail. Important basis are provided for evaluation of equipment conditions of the piercing mill of new Φ100 pipe rolling block, reconstructure design of the new pipe rolling block as well as rational piercing technology, it is of actual impor-tance to enhance productivity and increase economic benefit.


In computer science, but particularly in software engineering, the ability to communicate well is an important skill. However, in a classroom setting, the writing and oral communication assignments that we require of our students may not be directly related to tasks that they will be called upon to do after graduation. For example, one typical writing assignment - writing a term paper on some technical topic - is not typical of the kind of writing done on the job. Other assignments may be closer to the mark - for example, specification and design documents, code reviews, and user manuals are more like real work products. While the skills involved in the two kinds of assignment are similar, those that prepare students with job skills may be preferable. Since project-oriented software engineering courses are intended to give students practice with real-world skills for use on industrial system development projects, the question arises: are these writing and presentation assignments typical of the actual communication tasks students will be asked to do on the job?


Jeffrey M. Feldman, MD, MSE*† Capnographs are ubiquitous. On a daily basis, all over the world, physicians, nurses, and respiratory therapists use these devices to monitor patients and guide diagnosis and therapy. These devices reliably measure CO2 breath after breath. The user merely turns on the device and interprets the output. The impact of this technology on patient safety, especially in the practice of anesthesiology, cannot be overstated. In this issue of the journal, Jaffe has contributed a historical article on the development of infrared mainstream capnometry. The CO2 measurement technology we take for granted is the result of more than a century of scientific investigation and commercial development. In the process of developing this article, Dr. Jaffe used historical records, conducted many hours of personal interviews with developers of this technology, and has drawn upon his own expertise after 25 yr as an industrial scientist working on capnometry. It is remarkable that Tyndall developed the ratio spectrophotometer in the nineteenth century with all the elements of modern capnometry: a source of infrared light, a chamber to contain the sample, and a detector to measure the light that passed through the specimen. Tyndall's discoveries were fundamental to developing capnometry, but commercial development created the technology used at the bedside today. The early capnometers depicted in Jaffe's article underscore the fact that miniature electronics, microprocessors, and advances in materials science were all required to make bedside capnometry a reality. The essential ingredient however remains the entrepreneurial spirit. Whether it is the entrepreneur clinician, scientist, or corporate officer, commercialization of technology requires vision and the willingness to accept failure. This is particularly true with medical devices where the market is small, regulations are onerous, potential liability is great, profit margins are thin, and clinicians are frequently skeptical about new technology. Clinicians are understandably suspicious of those with financial interest in a particular technology. However, without entrepreneurs the devices that make modern medical care possible simply would not exist. The article by Dr. Jaffe benefits from his perspective as a scientist at Respironics—Novametrix. His article offers a broad historical perspective on infrared mainstream capnometry. Both the author and this editor have made efforts to insure that the text does not promote any particular device or company. Since the author is employed by Respironics, competing manufacturers have been invited to submit letters to the journal adding to this historical perspective. I am pleased that the journal has afforded space in the Technology Section for documenting the history of this ubiquitous and life-saving technology. I hope you enjoy the story!


There is a looming danger that judge-made exceptions from U.S. antitrust law for foreign conduct are swallowing the proscriptions of the Sherman Act against modern-style international cartels. Eleanor Fox (NYU School of Law)


This article examines the composite Old Norse-Icelandic legend of Mary Magdalen and Martha, the so-called M0rtu saga ok Mariu Magðalenu, in light of its unusual focus on Martha. Most medieval legends of the "sister saints," both in Latin and in the vernacular, focus almost exclusively on Mary Magdalen, the model of the contemplative life (vita contemplativa). However, the Old Norse-Icelandic compilation, which draws from a number of Latin sources, gives Martha, the model of the active life (vita activa), a primary role in the saga and condenses key aspects of the legend pertaining to Mary Magdalen. It is argued that the concentration on Martha can be seen within the context of how saints' lives oftentimes functioned in medieval Christendom, namely to both prescribe and describe societal expectations. Women in Iceland, both lay and religious, were by necessity active in the domestic sphere. Martha, as the model of the vita activa and of hospitality, would have been a much more practical saintly model for Icelandic women than Mary Magdalen, whose vita contemplativa would have had little practical application in medieval Iceland's agrarian society,where domestic work and hospitality were of fundamental importance, both on the farm and in the convents.


Maria Castaneda de la Paz discusses the existence of the so-called Codice X, the close relationship between different manuscripts which conform the corpus de la Tira de la Peregrinacion and the several authors like Torquemada, Tezozomoc and Chimalpahin made of them in order to compose their works. In the past, several of these authors have been accused of plagiarism but the authors shows how their procedures were in accordance with the times' practices. Her contribution for clarifying the authorship of Tezozomoc's work is of great importance as well as her considerations of the relation-ship between his work and that of Chimalpahin's, along with the reappraisal of the latter's work. She presents a thorough and complete analysis on how these three authors used different sources, including both the Codice X and the Cronica X, and made efforts to reconcile the different versions they encountered. Since she knows this is, by no means, a finished project, she invites other colleagues to continue to research the complex world of authors and works from the late XVI and the early XVII centuries.


The trinuclear complexes with simple and mixed ligands of platinum (II) with mercaptoethanol and mercaptoethylamine have been generated and their contents and structures investigated by numerous physicochemical methods. Mercaptoethanol (SHCH2CH2OH) is coordinated monodentally with just sulfur atom and forms pentacyclic metalchelate ring, where as mercaptoethylamine (HSCH2CH2NH2) is coordinated monodentally as well as bidentally and forms an identical ring (pentacyclic metalchelate). The sulfur atom of ligands plays a bridge role between the metals in the trinuclear platinum complexes. The hydroxyl group of mercaptoethanol does not participate in the coordination


In this paper we present a procedure for the measurement of the high-frequency characteristics such as reflection, transmission and crosstalk of packages. Although the approach is valid for general packages, we apply it here to the specific case of multi-pins backplane connectors. The high accuracy of this procedure is needed to characterise the connectors over a wide bandwidth or a large range of rise times. Based on the measurements, equivalent models are derived that can be used in circuit design.


The author examines whether an arithmetic average or harmonic average should be used in infant mortality measures. "The correction of the measure of infant mortality is proposed as [a] harmonic average of live births in two contiguous years." (summary in ENG, FRE)


Two compounds 2-benzoyl-N-phenyl-2-(1,2,4-triazol-1-yl)thioacetamide (1) and 2-(4-chlorobenzoyl)-N-phenyl- 2-(1,2,4-triazol-1-yl)thioacetamide (2) were synthesized from substituted acetophenone, triazole and phenyl isothiocyanate by several step reactions. The structure of compound 1 was determined by single-crystal X-ray diffraction analysis. It crystallizes in monoclinic system with space group P21/c, a=0.8806(2) nm, b=1.2097(2) nm,c=1.4809(3) nm, β=105.88°, Z=4, V=1.5173(6) nm3, Dc=1.411 Mg/m3, μ=0.22 mm-1, F(000)=672, finalR1=0.040 and Rw=0.103. There is obvious potentially weak CH···N intermolecular interaction in the crystal, which stabilizes the structure. The results of biological test show that the two compounds have antifungal and plant growth regulating activities.


Comprehensive cut support has been being a puzzle for excavating in coal mine.This article discusses the advantage and safe reliability of high prestressing force anchor and wire mesh.According to the theorical proof,the comparison of result support shows the advantage of support..


After the big Internet growing of the past decade, in the current decade a considerable effort is spent to reduce the Internet energy consumption. Actual Internet topologies have space to power off some links and devices in order to reduce energy consumed in off-peak periods still guaranteeing connectivity among terminals. In this paper we propose a methodology to identify less used links in the network in order to have the capability to switch off these network interfaces for energy saving purposes. We describe four different algorithms able to identify this set of links and we show the tradeoff between complexity, and the consequent execution time, and efficiency in powering off a great number of links. We find that, by using our solutions, it is possible to switch off a big percentage of links still keeping the network load under suitable thresholds and still guaranteeing topological characteristics of the resulting network topology.


While the all-in policy strives to make the match program more equal for all participants, it is not clear that all-in makes the recruitment process more just for all programs involved.


A study was initiated to investigate the application of slow neutron aetivation to pharmaceutical analyses. Arsenic and antimony were selected as the representative elements for the investigation. The procedure essentially involved three steps: (1) bombardment of the sample; (2) preparation of the sample for counting; and (3) the counting procedure. Neutron bombardments were conducted at the Argonne National Laboratory CP-5 Reactor, and the induced radioaetivity was detected with a gammaray scintillation spectrometer. The instrument contained a single channel pulse height analyzer and a well-type thallium-activated sodium iodide crystal. Polyethylene irradiation containers were constructed for the activation of hygroscopic samples, and quartz tubing was utilized for biological materials. The method was applied to the analysis of five pharmaceuticals: (1) Antimony Potassium Tartrate, (2) Arsenic Trioxide, (3) Carbarsone, (4) Oxophenarsine Hydrochloride, and (5) Stibophen. An average analytical error of four to five per cent was obtained. Irradiations were performed at a neutron flux of ~106 to emphasize the possibilities of laboratory sources for routine analyses. Twenty-four to forty-eight hour irradiation exposures resulted in milligram sensitivities for these pharmaceuticals. The procedures were conducted without a chemical separation; however, interference from beta emitting isotopes was found to occur. Shielding studies were undertaken to eliminatemore » the interfering beta radiation found in activated tissue samples. Lucite aluminum, steel, and lead radiation shields were constructed to enclose the sample within the well-type sodium iodide crystal. Investigations conducted with phosphorus-32 and sulfur-35 indicated that energetic beta emitting isotopes caused the formation of bremsstrahlung when shielded. This radiation was detected by the scintillation spectrometcr. For the analysis of biological systems in neutron fluxes of ~10/sup 12/ an irradiation time of twenty-four hours was found to be preferable. The determination of arsenic content in rat kidneys, following intravenous Oxophenarsine Hydrochloride therapy, was performed in conjunction with an aluminum irradiation shield. The method had a microgram limit of sensitivity for arsenic. If greater than microgram sensitivity were desired, a longer irradiation time and a chemi-cal separation would be required.« less


The electrical properties of metal‐plasma polymerized polysiloxane‐metal structures have been studied in order to establish the mechanisms of carrier transport through polymer layers of thicknesses of about 20–50 nm. Thin layers of polymer were obtained at room temperature by microwave glow discharge in hexamethyldisiloxane vapor. Current‐voltage measurements indicate that carrier transport is dominated by the field emission tunneling at 77 K and by thermionic emission at 300 K.


The experiment was conducted at the Student's Instructional Farm of Chandra Sekhar Azad University of Agriculture and Technology, Kanpur during kharif season of 2018 assess the application time of sea weeds granules (Ascophyllumnodosum) with recommended dose of fertilizer on growth and yield attributes and yields of Paddy crop. The experiment comprises of ten treatments viz. Control (RDF), RDF + Soli Gro Gr @ 10 kg/ha at FLP, RDF+SoliGro @ 10 kg/ha at 25 DAT, RDF+SoliGro @ 10 kg/ha at 45 DAT, RDF+SoliGro @ 10 kg/ha at 65 DAT, RDF+SoliGro @ 10 kg/ha at FLP & 25 DAT, RDF+SoliGro @ 10 kg/ha at FLP & 45 DAT, RDF +SoliGro @ 10 kg/ha at FLP &65 DAT, RDF+SoliGro @ 10 kg/ha at FLP, 25 & 45 DAT, RDF+SoliGro@ 10 kg/ha at FLP, 25, 45 & 65 DAT laid out in Randomized Block Design with three replications. Results revealed that the application of seaweed extracts (Soli Gro Gr @ 10 kg/ha) at final land preparation time and 25 days after transplanting of crop with recommended dose of fertilizers promoting growth attributes viz., plant height, functional leaves/plant and yield parameters viz., grain/panicle and effective tillers (m2) and grain yields viz. were recorded highest in recommended dose of fertilizer and applied two time Soli Gro Gr @ 10 kg/ha at final land preparation time and 25 days after transplanting of crop compared to all rest treatments in present investigation.


Background: There is sparse evidence on the economic burden associated with Interstitial Lung Diseases (ILDs) and the interaction between healthcare domains, especially on the level of distinct ILD-subtypes. To close this knowledge gap we performed a longitudinal analysis of costs of care for individuals with different ILDs. Methods: We identified 37,489 patients with newly diagnosed ILD—mostly IPF-related syndrome, sarcoidosis, and fibrosing ILDs—between 2010 and 2012 based on ICD-10 codes from a German statutory health insurance fund insuring ~21.7 million adults. Then, we assessed total healthcare spending and spending for the distinct service domains one year prior diagnosis and up to five years after. Results: Mean per capita spending doubled in the year of diagnosis (€12,763 vs. €6,361 previous year) and declined afterwards almost to the pre-diagnosis level. Inpatient care accounted for 71.5% of spending in the year of diagnosis but only for ~50% in the post-diagnosis period. Medication and outpatient physician care accounted for ~28% and ~15% in the years post diagnosis. Cost compilation and trends were similar for the distinct ILD-subtypes, but absolute amounts differed substantially. Compared to IPF-related syndrome (O=€13,750) or medication-associated ILDs (O=€17,416), spending in the year of diagnosis was low for individuals with sarcoidosis (O=€8,199). Conclusion: Costs for ILD-patients are particularly high in the initial phase, reflecting the long and mostly inpatient process of complex diagnosis. More detailed analyses on the underlying healthcare utilization patterns on the substance and procedure level will support sound understanding of current care structures and therewith associated economic burden.


Estimation of articulatory parameters by table look-up method and the phoneme recognition of unspecified speakers are described. Speech recognition using features in articulatory level is effective respecting adaptability to unspecified speakers and simplicity to compensate co-articulation. However, estimation of the parameter requires a lot of time. In the method, first the articulatory domain is quantized into finite centroids obtained by clustering technique and table search is carried out. It enabled shortening of estimation time but still maintain the same degree of preciseness obtained in the earlier method. Further, a recognition method considering compensation of co-articulation is examined. Phoneme recognition rate of 50 city names uttered by 8 speakers, 4 males and 4 females was 90.8%.


Wireless Sensor Networks have evolved into complex deployments where their nodes can have a full network protocol stack, database systems, etc. The main rationed resource in such a deployment is energy. Having power usage tightly managed ensures a long operational life for the node in cases where replenishments (either via recharge or battery change) are difficult or impossible. The basic deployment of Wireless Sensor Networks consists of sensing nodes as well as a relay node (i.e., sink) which collects sensory data to be relayed via a reliable network. The sink node can become unreachable due to malfunction, scheduled uptime or, in the case of mobile sink nodes, due to being out of the sensor nodes' reach. In addition, the sensor nodes may decide against relaying data for some period. In these cases, optimal use of sensor node memory space also becomes critical. In this article, we classify data types and establish a set of node level approaches that can be taken to make the most of limited data storage via a prioritized data reduction. We conclude that such a methodology enables the node to be useful by collecting data beyond the point where its data storage size would otherwise allow.


Objective To explore the interference factors of conventional biochemical reagents for enzymatic determination of serum total bile acid(Total bile acid TBA),moreover,to find an effective way to eliminate pollution. Methods The detection of TBA,ALT,AST and other 20 routine items can confirm its obviously interference reagents,and through a special program setup to reduce pollution from the instrument. Results UA reagent for determination TBA has statistically significant impact on results(p0.01),there is a systematic error;TG,CHOL for the determination of TBA results was statistically significant(p0.05),with positively interference for TBA determination. Conclusion Automatic biochemical analyzer has cross-contamination between the project for TBA determination and through a reasonable program can effectively eliminate the pollution of the TBA determination.


Co-infection and morphometrics of helminth parasites of Tilapia guinensis in Opi Lake (GPS N06.75275*, E007.49104*), were studied from (Nov 2007– Oct 2008) using multiple fishing gear techniques; cast nets, hook and line, and seine nets (150 mm – 200 mm). The parasites recovered were C. tilapiae, C. complanatum and E. heterostomum. The prevalence was low, indicative of parasitic infection in the wild. Prevalence of (33.9 %) was recorded in C. complanatum, (7.2 %) in E. heterostomum and (12.6 %) in C. tilapiae. But high mean intensity was suggestive of heavy parasite burden; C. complanatum (4.8), C. tilapiae (2.8), and E. heterostomum (5.1). Morphometrics of the parasites showed no significance difference in the distance between oral and ventral suckers. However, they differed in all other parts significantly (p < 0.05). In the rank-abundance curve for parasite communities, C. complanatum was most abundant (pi 0.63). Differential parasitic effects were due to selection for relatively better adaptiveness to host's microhabitats, more population size, better host location, and larger body size. Consequently, this resulted in a trade-off between larger morphometric parts and population size among the parasites


We summarize outcomes from the 2021 KidRec Workshop, co-located with the ACM Interaction Design and Children conference. The theme of the 5th edition of KidRec was Search and Recommendation Technology through the Lens of a Teacher. During the workshop, we discussed why teachers are one of the main stakeholders when designing information retrieval tools for the classroom and how to involve them as part of the research and development process to ensure that the resulting tools are suitable and supportive for learning. Date: 27 June, 2021. Website: https://kidrec.github.io/.


Abstract : The Navy Human Performance Center (HPC) and Navy Personnel Command (NPC) have reached the final phase of development for the Navy's Human Performance Feedback and Development (HPFD) and ePerformance system. This second and final iteration of usability testing was designed to verify the functionality of system revisions made as a result of recommendations offered in Schwerin et al. (2004) and gather user perceptions of system usability and cultural issues that may affect HPFD and ePerformance system implementation. This report documents the results of usability test and user survey data collection. Usability timing and errors analyses suggest that system enhancements as a result of the first usability study improved the overall usability of the HPFD and ePerformance system, but users still have significant difficulty finding, opening and creating HPFD and ePerformance documents.


Uterus transplantation (UTx) is an experimental surgery likely to face the issue of organ shortage. In my article, I explore how this issue might be addressed by changing the prevailing practices around live uterus donor recruitment. Currently, women with children – often the mothers of recipients – tend to be overrepresented as donors. Yet, other potentially eligible groups who may have an interest in providing their uterus – such as transgender men, or cisgender women who do not wish to gestate or to have children – tend to be excluded as potential donors. Moving forward, I recommend that donor inclusion criteria for UTx be broadened to be more inclusive of these latter groups.


I consider Chicano History an ideal mural to expand on the analysis of form and content considering that it reflects the time in which it emerged: a period of civil disobedience and social unrest in which art, and art making was utilized for social mobilization and people awakening in order to effect social change.


Development of medical imaging techniques (including medical thermography) provided an opportunity to mine data that can be explored for the development of clinical decision support systems.Aim. Find out quantitative thermography criteria for acute rhinosinusitis and implement these criteria into automated analysis protocols to create a diagnostic complex suitable for use by professionals of any medical speciality.Material, methods. After necessary adaptation, facial thermography by mean of thermography camera ТВС300-меd LLC "СТК СИЛАР" Russia, (384x288 pixel, 30 mK) was performed in 100 healthy volunteers and 305 patients with suspected acute rhinosinusitis (in 173 of them diagnosis was supported). Resulted thermograms were processed in "cloud service" TVision (LLC "Dignosys", Russia). Point and regions of interest (ROI), namely, point in the middle of the line, connected inner edge of eyebrows (Тср) and ROI, covered the projections of maxillary sinuses were marked automatically. Difference between temperature in Тср point and mean temperature in each ROI (ΔТr/ΔТl), as well as mean temperature between ROI were calculated (ΔTпаз).Result. The best results ( sensitivity 82%, specificity 74%, accuracy 78%) were received when complex of ΔТr/ΔТl ≤0 and module |ΔTпаз| ≥0,5°C (both or at least one criterion) was applied. Based on these data, automatic algorithm of thermography acute rhinosinusitis diagnostics was created to use in primary medical care routine as clinical decision support systems.


Drawing on long-term ethnographic fieldwork amongst Slovak au
pairs living and working in London in 2004/2005, this
presentation focuses on ways how au pairs generate knowledge
about au pair institution and fairness of their working and
living conditions. Though the conditions of au pairs'
employment are vaguely defined by international law and
immigration rules, host families and au pairs usually are not
familiar with their details. Furthermore, the actual working
and living conditions of au pairs' are controlled neither by
immigration policy, nor by commercial agencies mediating
contacts between the au pairs and host families. Consequently,
the au pairs and host families have often different
expectations and particular conditions and relationships depend
on individuals. Given the asymmetry in power between the au
pairs and host families, au pairs are commonly exploited and
have little control over their duties, working and living
conditions. In this paper I will focus on how au pairs deal
with this lack of definitions and rules under the conditions of
limited power. I will argue that their important concern is
fairness of their treatment by host families: au pairs try to
find out what kinds of working and living conditions are fair
and whether they are staying with (what they call) 'a good
family'. When the au pairs judge their treatment by host
families, they do not rely on any formal authority (e.g.
agencies mediating au pair stays), or abstract model (e.g.
legal rules). Instead, when establishing what rules of au pair
employment are (or should be), they rely on their social
networks and compare their experience with experiences of other
individual au pairs.


The ultraviolet absorption of the perchloric acid-soluble fraction in digested parotin by trypsin and chymotrypsin rapidly increased within 1hr. and showed the maximum rate of digestion after 3hrs. of incubation. At the ultraviolet estimation, the use of perchloric acid as protein-precipitating reagent was proved more preferable than trichloroacetic acid.


1 Shih T, Lindley C. Bevacizumab: an angiogenesis inhibitor for the treatment of solid malignancies. Clin Ther 2006; 28:1779–802. 2 Azizi AA, Haberler C, Czech T et al. Vascular-endothelial-growth-factor (VEGF) expression and possible response to angiogenesis inhibitor bevacizumab in metastatic alveolar soft part sarcoma. Lancet Oncol 2006; 7:521–3. 3 Herbst RS, Johnson DH, Mininberg E et al. Phase I ⁄ II trial evaluating the anti-vascular endothelial growth factor monoclonal antibody bevacizumab in combination with the HER-1 ⁄epidermal growth factor receptor tyrosine kinase inhibitor erlotinib for patients with recurrent non-small-cell lung cancer. J Clin Oncol 2005; 23:2544–55. 4 Lu JF, Bruno R, Eppler S et al. Clinical pharmacokinetics of bevacizumab in patients with solid tumors. Cancer Chemother Pharmacol 2008; 62:779–86. 5 Koontz BF, Miles EF, Rubio MA et al. Preoperative radiotherapy and bevacizumab for angiosarcoma of the head and neck: two case studies. Head Neck 2008; 30:262–6.


Preface 1. Introduction Part I. Historical Narrative: 2. Protectionist heyday: state intervention in industry during the long post-war boom 3. Recasting the relationship between manufacturing and the state: the Tarrif Board's attack on McEwenism 4. Puzzling through: the search for a new industry policy beyond free trade and protectionism 5. Policy responses to manufacturing decline: the limits of state economic intervention 6. Intervention and economic liberalism: industry policy under the Hawke and Keating governments Part II. Evaluation and Prescription: 7. Australia's pattern of industry-state relationships 8. Evaluation and prescription: where to now for Australian industry policy? References Index.


This article presents a framework, Frog, for Context-Based File Systems (CBFSs) that aim at simplifying the development of context-based file systems and applications. Unlike existing informed-based context-aware systems, Frog is a unifying informed-based framework that abstracts context-specific solutions as views, allowing applications to make view selections according to application behaviors. The framework can not only eliminate overheads induced by traditional context analysis, but also simplify the interactions between the context-based file systems and applications. Rather than propagating data through solution-specific interfaces, views in Frog can be selected by inserting their names in file path strings. With Frog in place, programmers can migrate an application from one solution to another by switching among views rather than changing programming interfaces. Since the data consistency issues are automatically enforced by the framework, file-system developers can focus their attention on context-specific solutions. We implement two prototypes to demonstrate the strengths and overheads of our design. Inspired by an observation that there are more than 50% of small files (<4KB) in a file system, we create a Bi-context Archiving Virtual File System (BAVFS) that utilizes conservative and aggressive prefetching for the contexts of random and sequential reads. To improve the performance of random read-and-write operations, the Bi-context Hybrid Virtual File System (BHVFS) combines the update-in-place and update-out-of-place solutions for read-intensive and write-intensive contexts. Our experimental results show that the benefits of Frog-based CBFSs outweigh the overheads introduced by integrating multiple context-specific solutions.


The Coulomb corrections of relative order Z..cap alpha.. to inelastic electron and muon scattering are examined. Although individual terms are large, the net result is too small to be experimentally significant.


The shortages of MIS are analyzed, and the web service and workflow technologies are introduced. Based on the two new technologies, a new MIS framework is proposed and the system architecture and the software structure model are provided. The results puts forward a new concept for the design of MIS. Lastly, an example of the framework is given.


BACKGROUND:The capacity of public health facilities to effectively manage malaria in endemic zones is often limited by inadequate facilities, equipment and skills. Thisstudy was a follow up study to assess the capacity of public health facilities in Lagos, Nigeria to diagnose and treat malaria following various interventions toimprove capacity.METHODOLOGY:We conducted a descriptive cross-sectional repeated survey of 218 functional government-owned health facilities in 2009 and 2013. In-depth interviewsand direct observations methods were usedRESULTS:The proportion of PHCs capable of conducting rapid diagnostic tests for malaria increased signicantly from 8.2% to 91.0%. There was also an increasedavailability of ACTs such as Artemisinin-Lumefantrine (92.6%) and Artesunate-Amodiaquine (92.9%) in both PHCs and the secondary facilities comparedto 66.7% and 77.3% respectively in 2009. A total of 26 (13.7%) PHCs and 1 (3.6%) secondary facility experienced stock-out for anti-malarial in 2013compared to 38.5% and 59.1% respectively in 2009. However, the increase in the supply of Artemisinin-based therapy for malaria treatment was notstatistically signicantCONCLUSION:Between the two-time periods, there was an increase in functionality and capacity of the health facilities to diagnose malaria and treat appropriately whichshould be sustained through continuous monitoring and evaluation of performance to determine the impact of interventions.


Objective:To analyze the polymorphism of urease B gene(ureB) from different Hp strains. Methods:The sequences of ureB gene from 14 different Hp strains were amplified by PCR to analyze PCR-RFLP with HaeⅢ digestion.At the same time,the sequence of ureB gene was analyzed with biochemical software to compare the homology of nucleotide and amino acid sequence and to profile the phylogenetic tree. Results: The results of 1.7 kb ureB gene digested with HaeⅢ showed there were 2-5 band types in 14 different Hp strains and formed five distinct RFLP types.The two reference strains had the same RFLP type as 3 clinical isolates while the other clinical isolates and 3 isolates from animal model belong to 4 different RFLP types respectively.The nucleotide sequences and putative amino acide sequences of Hp ureB were compared.The various ureB sequences had high homologies(more than 96.6% and 98% in nucleotide sequences and amino acide sequences respectively) among 14 Hp strains.Particularly,there was the highest homologies(100%) between CCS9801、CCS9806、M3 and M10.Phylogenetic tree analysis showed that two reference strains and other isolates from clinical patients and Hp-infected mice model were located in two different lineage respectively in phylogenetic tree of nucleotide sequences while there were some variance in phylogenetic tree of amino acide sequences. Conclusion: Hp ureB was high conserved and homologous in the gene level as well as in the protein level.


The invention discloses an ultrahigh frequency MHz high power conversion device, which is characterized in that the device carries out combination on a power electronic topological structure, and can acquires new energy through combining N pieces of energy whose frequency is f, wherein the frequency of the new energy is Nf, and the power of the new energy is N times greater. The combination can be a combination of a single tube forward topology, a single tube flyback topology and a full-bridge topology or a half-bridge topology. The energy can adopt single-phase output or multi-phase output. The energy can be current signals or voltage signals. The ultrahigh frequency MHz high power conversion device has the beneficial effects of simple structure, high reliability, ultrahigh output frequency, and ability of being applied to ultrahigh frequency high-power power electronic devices.


Objective To study the expression of the tumor suppressor gene p16 in PTC (Papillary Thyroid Carcinoma,PTC),and the correlation between the expression and the aberrant methylation of p16 gene promoter. Methods RT-PCR was used to measure the mRNA expression of p16 in 50 cases of PTC,20 cases of nodular goiter and 12 cases of thyroid adenoma. p16 promoter methylation was detected using methylation-specific PCR technique (MSP). Results p16 promoter methylation was detected in 27 cases of PTC (54%) and 5 cases of non-PTC (15.6%),respectively. Significantly higher methylation rate of p16 methylation was revealed in PTC patients (X2=12.08,P0.01). Negative p16 expression was detected in 17 cases of PTC and 6 cases of non-PTC patients,though no significant difference was found (X2=2.29,P0.05). However,there was significant lower expression level of p16 gene mRNA in PTC (t=3.66,P0.01). Conclusion Methylation of p16 gene promoter is common in PTC and may be involved in its genesis and development.


Generation and development of soft ground treatment are illustrated in detail on the basis of practice examples,and applicability of soft ground treatment is analyzed with emphasis.


This supplementary document includes implementation details of both VR and AR display prototypes, complementary derivations related to wave propagation and optimization models of our neural 3D holography, and additional experimental results of both holographic display prototypes. Refer also to the supplementary video for better visualization. Here we list the abbreviations and notations used across this document. SLM: a spatial light modulator CGH: computer-generated holography ASM: the angular spectrum method [Goodman 2005] DPAC: the double phase–amplitude coding algorithm [Hsueh and Sawchuk 1978; Maimone et al. 2017] CITL: the camera-in-the-loop optimization technique [Peng et al. 2020] SGD: stochastic gradient descent phase retrieval [Peng et al. 2020] NH: a 2D wave propagation model that is trained using an SGD-based camera-in-the-loop training strategy aka neural holography [Peng et al. 2020]; once trained, this model is used to generate new holograms using an SGD solver HIL: a 2D wave propagation model that is trained using an SGD-based hardware-in-the-loop training strategy [Chakravarthula et al. 2020]; once trained, this model is used to generate new holograms using an SGD solver


A safe and cost-effective design of a wind turbine generator (WTG) grounding system requires accurate modeling of local soil resistivity, particularly when wind turbines are spatially distributed across a wide area with different soil types and features. In this paper, three locations at an Australian wind farm were modeled based on measured data. Four soil resistivity models were considered: uniform, multi-layer horizontal, vertical, and exponential variation with depth. Full-wave electromagnetic simulations were performed at different lightning discharge current frequencies to find the expected ground potential rise and WTG earthing impedance in the event of a lightning strike. Furthermore, the effect of frequency dependent soil parameters on the WTG earthing was analyzed, along with the effect of foundation rebar on the grounding impedance. Our results show that an accurate soil resistivity model is critical in the design of a WTG earthing system.


Talents cultivation quality is the core problem of high education,but there lack of articles to discuss the evaluation of talents cultivation quality of marketing major in engineering colleges,which restricts the healthy development of marketing major in engineering colleges.Hence,this paper puts forward the evaluation index system of talents cultivation quality of marketing major in engineering colleges based on literature review and interviews,and then takes East China Jiaotong University for example to carry on empirical analysis by using fuzzy comprehensive evaluation method,so as to be helpful to clarify the reality level of talents cultivation quality of marketing major in engineering colleges,and improve the weak links of talents cultivation quality.


Multi-channel delay locked loop according to this technique is the fixed delay the global delay lock loop and a respective input clock signal and outputting the global delay control signal corresponding to the input clock signal with a delay amount of the delay lock but delay the input clock signal when the fixed channel but outputs the clock signal and a plurality of local delay lock loop that the delay amount of the input clock signal according to the global delay control signal Reset.


MEDIUM SOURCE DIVERSITY AND MEDIUM RELIANCE: IN SEARCH OF ISSUE DIVERSITY Mary Ann Ferguson Assistant Professor and Director Communication Research Center College of Journalism and Communications


Objective To study the effects of Xintaiping(XTP) on experimental arrhythmias,hemodynamics and ECG.Methods Using the animal arrhythmic models induced by aconitine,BaCl 2,electric stimulation and coronary artery ligation,hemodynamics and ECG were assessed by means of left ventricular catheterization using a polygraph system in rats.Results XTP 4g/kg and 8g/kg prolonged significantly the onset time of aconitineinduced arrhythmias in rats( P 0.01),decreased the incidence of VF,and increased the threshold of electric stimulation induced VF in rabbits ( P 0.01).XTP could also counteract arrhythmias induced by BaCl 2 and coronary occlusion in rats.XTP 8g/kg decreased LVSP and -dp/dt max in rats( P 0.05),prolonged Q T interval( P 0.05),but didn't affect dp/dt max ,SAP,heart beat and A V.Conclusion XTP is a traditional Chinese herb with little heart inhibition,protectes the animals well from experimental arrhythmias,especially induced by aconitine and electric stimulation.


In quantisation index modulation-based watermarking methods, each host coefficient is replaced by an adequate quantiser according to the embedded bit. However, after the attack, the distribution of the hosts does not remain the same, resulting in a failure to map coefficients to their correct bits. To maintain a good quality, many authors focused on improving the extraction, rather than playing on the embedding parameters. They used a reference message to define the parameters of the channel model after the attack. However, the available solutions were not effective, whereas the reference message cannot describe the channel alteration due to a shortage of samples, and the complexity of attacks modelling. To overcome these problems, the authors relied on a diversification technique, which allowed to enlarge and vary the samples. Then, based on quantisation embedding rules, they generated an accommodative detection model for each attack. At the extraction phase, the suitable detection model was identified by means of a reference message. To reinforce the security of their scheme, the watermark was initially shuffled, which prevents any unauthorised detection attempt. Both geometric and signal processing attacks were used in the validation of their method. The reduction of bit-error rate with respect to the conventional detection method reached up to 100%.


Aquaporins (AQPs) mediate cross membrane transport of water and other solutes in plants. AQPs also enhance plant performance under environmental stresses including water shortage. Chickpea (Cicer arietinum L.) is the most important pulse legume for the people of semi-arid tropics. To understand the evolutionary relationships and role of AQPs in drought tolerance in chickpea, the current study involves an evolutionary analysis coupled with expression analysis and promoter analysis of selected AQPs. A total of 503 non-redundant AQP genes have been studied in 11 plant species including mosses (Physcomitrella patens), monocots (Oryza sativa and Zea mays) and dicots (Solanum lycopersicum, Populus trichocarpa, Gossypium hirsutum, Glycine max, Arabidopsis thaliana, Brassica rapa, Solanum tubrosum and Cicer arietinum). Phylogenetic analysis demonstrated a clear divergence of AQP subfamilies as paralogous groups and possible evolutionary direction of AQP subfamilies. Semi-quantitative RT-PCR analysis depicted involvement of PIP2; 2 and NIP6; 3 in increasing plant drought stress tolerance and of SIP1; 1 and PIP2; 3 with a contrary role. In silico promoter analysis identified a 49 bp conserved motif among six AQPs and several abiotic stresses related cis-elements. The present study is a very first step in deciphering AQPs role in drought stress tolerance with a special perspective from evolutionary relationships and gene expression regulation.


This study was conducted among the students attending D school located in B area, who included 17 individuals - 8 in the exercise group and 9 in the control group that did not participate in the program. As for the exercise frequency, they participated in the program 3 times a week for 12 weeks(60 minutes per day). The results are as follows: 1. As for the physical strength, the exercise group showed significant difference(p<.01) over time while the control group showed no difference. Significant difference was found in the analysis between groups(p<.01). As for endurance, the exercise group showed significant difference(p<.001) over time while the control group showed no difference. Significant difference was found in the analysis between groups(p<.01). As for flexibility, the exercise group showed Significant difference(p<.05) over time while the control group showed no difference. Significant difference was found in the analysis between groups(p<.05). As for cardiovascular endurance, the exercise group showed significant difference(p<.05) over time while the control group showed no difference. Significant difference was found in the analysis between groups(p<.01). 2. As for the blood bone metabolic index OC, the exercise group showed significant difference(p<.001) over time while the control group showed no difference. Significant difference was found in the analysis between groups(p<.05). As for ALP, the exercise group showed significant difference(p<.001) over time while the control group showed no difference. Significant difference was found in the analysis between groups(p<.01).


1. Understanding the factors affecting species occurrence is a pre‐eminent focus of applied ecological research. However, direct information about species occurrence is lacking for many species. Instead, researchers sometimes have to rely on so‐called presence‐only data (i.e. when no direct information about absences is available), which often results from opportunistic, unstructured sampling. maxent is a widely used software program designed to model and map species distribution using presence‐only data.


A ministay degree from a seminary is usually conferred upon a minister by the awarding official (e..g., the president of the institution) with the stipulation that the degree is being conferred " . . . with all the rights, privileges, and responsibilities appertaining thereto." It is an almost-like-magic phrase that creates an electrifying moment when it is spoken. Sometimes the awarding officer alters the phrase to " . . . with all the rights, privileges, and especiaUy the responsibilities appertaining thereto." Thus spoken, the phrase sounds a little less magical, but it still is an imagination "tickler."


As the "first service station" for ships in the whole port logistics system, the tugboat operation system is one of the most important systems in port logistics. This paper formulated the tugboat scheduling problem as a multiprocessor task scheduling problem (MTSP) after analyzing the characteristics of tugboat operation. The model considers factors of multianchorage bases, different operation modes, and three stages of operations (berthing/shifting-berth/unberthing). The objective is to minimize the total operation times for all tugboats in a port. A hybrid simulated annealing-based ant colony algorithm is proposed to solve the addressed problem. By the numerical experiments without the shifting-berth operation, the effectiveness was verified, and the fact that more effective sailing may be possible if tugboats return to the anchorage base timely was pointed out; by the experiments with the shifting-berth operation, one can see that the objective is most sensitive to the proportion of the shifting-berth operation, influenced slightly by the tugboat deployment scheme, and not sensitive to the handling operation times.


The results of research on the influence of basic tillage methods on agrophysical indicators in soybean cultivation are presented. Over the years of research (2017-2019), the soil density (0-30 cm) during soybean cultivation according to the studied methods of basic tillage was optimal for plant growth and development and was within the range of 1.00-1.27 g/cm3 before sowing; 1.05-1.19 g/cm3 during the branching phase; 1.10-1.36 g/cm3 before harvesting. The reserves of available moisture before sowing in the twenty-centimeter layer of soil were characterized by satisfactory and good security (30.4-43.0 mm), the meter layer-good and very good security (150.8-172.3 mm) on variants with soil treatment and satisfactory at zero treatment-125.1 mm. In the phase of soybean branching, the available moisture reserves at a depth of 0-20 cm were characterized by satisfactory water availability (31.0-35.6 mm) and good (159.6-160.6 mm) in the meter layer of soil. Before cleaning, the available moisture reserves were characterized by satisfactory security. The highest yield was obtained by a differentiated method of tillage (20-22 cm) with an excess of control (dump method, 20-22 cm) by 0.06 t/ha. A decrease in the depth of processing (12-14cm) led to a decrease in the yield of soybean grain by 0.07-0.11 t/ha for the studied methods of basic soil treatment.


The article by Rock et al1 in this issue of Pediatrics highlights an important issue surrounding the challenge of high health care costs in the United States: the lack of knowledge by physicians of cost of care. Their research provides 3 key messages that can inform future health care policies. First, physicians generally have limited knowledge regarding health care finances. As noted by Rock et al in their research, this "knowledge does not improve with experience: attendings' estimates were, on average, accurate only 4% more frequently than those of residents." Second, there is very limited transparency in costs of health care.2 Even when charge information is available, this information may not easily be converted into costs because the charge-to-cost …

Address correspondence to Ramesh Sachdeva, MD, PhD, DBA, FAAP, FCCM, American Academy of Pediatrics, 141 Northwest Point Blvd, Elk Grove Village, IL 60007. E-mail: rsachdeva{at}aap.org


We investigate the degree to which the ethnic group composition of "port-of-entry neighborhood" (PoE), the first permanent settlement after immigration, affects the employment prospects of refugees in Sweden during the subsequent 10 years. We use panel data on working-age adults from Iran, Iraq, and Somalia immigrating into Sweden from 1995 to 2004. We control for initial individual and labor market characteristics, use instrumental variable regression to avoid bias from geographic selection, and stratify models by gender and co-ethnic employment and education rates within the neighborhood. We find that the impact of co-ethnic neighbors in the PoE varies dramatically by gender.


The present work is a continuation and development of research on prediction and analysis of the spread of the COVID-19 epidemic. The proposed model adequately describes the development of the coronavirus epidemic with insufficient adherence to quarantine and social distancing. The transition from the absolute number of infected persons to their relative number per inhabitant of a settlement makes it possible to obtain universal calculation ratios. In performing the calculations, the choice of the date of the beginning of the epidemic is of great importance. Recommendations are given on how to determine the date of the beginning of the epidemic based on the analysis of statistical data on the spread of the epidemic. The coefficient of virus transmission rate k included in the calculated prognostic relation depends on the population size and the type of virus strain in the settlement in question. A simple ratio for calculating this coefficient as a function of population size is proposed. Control calculations performed using only a single empirical coefficient showed high accuracy. The calculated curves for Germany, Berlin, and its districts agree well with the corresponding statistical data. The correlation coefficients between the corresponding curves reach values of 0.93 to 0.97. The further development of the model should thus go in the direction of identifying causal links between the intensity of the epidemic and the main factors affecting this process. Some of these factors are related to the characteristics of the population's behaviour and the infrastructure of cities. The increase in the incidence in areas with a large percentage of the population rooted in Islamic countries is one of the main factors determining the development of the epidemic in Berlin. In order to explain and clarify this conclusion, it is necessary to make further assumptions about the possible emergence of a new strain of coronavirus in Berlin and in Germany and, accordingly, about the possibility of new epidemic waves. A preliminary ratio for predicting the spread of the epidemic under conditions of simultaneous existence of both strains of coronavirus is given. Simplicity of the proposed prognostic method and high accuracy of the results allow to recommend it as an effective tool for operative analysis of various measures aimed to control the spread of COVID-19 epidemic including mass vaccination of population.


The UK higher and further education sector is engaged on a radical, world-leading project to create a vast menu of high quality electronic content covering all disciplinary areas and delivered via a seamless, standardized and integrated information infrastructure. This in turn will be supported by advisory, preservation and other services. The content includes commercial information products, but also resources created by higher and further education institutions themselves. The project is called the Distributed National Electronic Resource (DNER) and has been developed with substantial funding from UK higher education and further education's Joint Information Systems Committee (JISC). The DNER is one of the foundation stones on which JISC's view of the development of information, content and learning resources infrastructure for HE/FE in the next five years is built [1]. This article describes the evolving concept of the DNER and relates it to one disciplinary area, business and management studies.


Background Allo-HSCT has been shown to increase survival and improve cure in acute leukemia (AL). However, this procedure is accompanied by high rates of morbidity and mortality. Several risk scores based on conventional statistical methods may aid decision regarding whom and how to perform allo-HSCT, but these methods carry inherent limitations, which may lead to sub-optimal candidate selection. Machine learning (ML) is a field in computer science stemming from artificial intelligence and is part of the data mining approach for data analysis. ML algorithms are commonly applied in technological and commercial settings. They allow for coping with complex data scenarios and thus may be suitable for outcome prediction in allo-HSCT. With this background, and using a ML prediction method- the alternating decision tree (ADT) algorithm, we developed an interpretable model for overall mortality (OM) and treatment-related mortality (TRM) at day +100 after allo-HSCT in AL. Patients and Methods 28,995 adult allo-HSCT recipients from the registry of the ALWP of EBMT were analyzed. Twenty two variables were available including year of transplant (range, 2000-2011), diagnosis (Acute Myeloid Leukemia and Acute Lymphoblastic Leukemia), disease status, Karnofsky performance status, conditioning regimen (myeloablative or reduced- intensity conditioning), graft type (peripheral blood, bone marrow or cord blood), donor and recipient HLA compatibility, CMV serostatus, GVHD prophylaxis regimens, etc. Per study definitions, the primary outcomes to be predicted were OM and TRM at day +100 days after allo-HSCT. The complete dataset was split into 3 sets: training set (n=11,600), testing set (n=8,688) and validation set (n=8,707). The ADT prediction model was tested and optimized according to the first 2 subgroups and validated on the last one. Output from the ADT model, included variables selection with assigned scores in a tree-based structure and area under the ROC curve (AUC), a measure for model discrimination Results Each of the ADT models selected 12 out 22 variables for prediction of OM and TRM at day +100. Ten variables were mutual for both prediction models, although different weights were assigned. These included: age, diagnosis, disease status, Karnofsky performance status (all at time of transplant), donor-recipient HLA-matching, number of transplants in each center per year, year of transplant, conditioning regimen and the donor9s and patient9s CMV serostatus. Variables selected exclusively by the OM prediction model were graft type and donor-patient CMV serostatus match, whereas the TRM model selected time from diagnosis to transplant and donor-recipient sex match. Applying the models on the validation set yielded AUCs of 0.701 (95% confidence interval [CI] 0.691-0.710) for OM prediction and 0.67 (95% [CI] 0.66-0.68) for TRM. The ADT prediction models assigned scores correlating with patient outcome. Patients in each of the validation sets were grouped according to their score range and the prediction success. A Higher score was correlated with higher rate of the measured outcome in both models (figure 1 and figure 2). Conclusions We present two new models, based on the ADT ML algorithm, for prediction of OM and TRM at day +100 after allo-HSCT. The models are robust as they rely on a high number of samples and a large validation set. As shown in the figures, higher scores correlated with a poorer outcome, reaching more than 50% mortality for a score range of 5.76-7 in the OM prediction model. The AUC performance measure was better for OM than TRM, possibly due to a higher event rate in former, making it easier to predict. Improving the predictive ability will probably necessitate evaluation of more variables, as the limitation of the maximal predictive performance is most likely in the information gained from the variables and not from the sample size or algorithm used. This is currently under progress, especially combination with other risk scores linked to comorbidities. In summary, our models can aid candidate selection for allo-HSCT, by providing a measurable score that correlates with transplant success. Disclosures: Schmid:Novartis: Honoraria, Research Funding, travel grant Other; Roche: travel grant, travel grant Other; MSD: Honoraria.


"Practicing Physicians, not uncommonly, are suspicious of statistical reports and rates and one often hears pejorative comments about any statistics and all statisticians." So wrote Dr. Wegman in his latest "Annual Summary of Vital Statistics,"1 and most readers will only need to look within themselves to see what he was writing about. Yet, suspicious as we may be we can seldom resist looking at statistics about our own particular pediatric problems and even occasionally making some tabulations of our own data.
 This is certainly true of one who has spent more Friday noon hours than he cares to think about in a weekly conference on the fetal and neonatal deaths of a large maternity hospital.


In order to adapt to the engineering and technical Innovative personnel training programs in the new century,an project about how to build a heat transfer experimental platform which has an open,flexibility and diversity function has been put forward.And the mission driving type teaching mode and method with the platform conform has been discussed.The establishment of platform and teaching mode will improve the quality of experiment teaching,and enhance the students' comprehensive quality and practical ability.


The Southern Durchmusterung (SD, Schoenfeld 1886, Becker 1949, Schmidt 1967) is a visual survey of stars in the declination zones -02 to -23 deg, completed as an extension to Argelander's (1859-62) monumental Bonner Durchmusterung (BD). Schoenfeld's survey was carried out using the same methods as had been used for the BD. The procedure consisted of allowing the telescope to drift along the mean declination of each zone and recording the positions and magnitudes of stars crossing the transit line of each field. The goal of the survey was to extend the BD to declination -23 deg (a plan originally adopted by Argelander) with approximately the same magnitude limits, although the primary instrument was of larger aperture (159 mm) than the 78-mm telescope used for the BD. Thus, whereas the BD magnitude estimates extend to 9.4 mag with all fainter stars assigned a magnitude of 9.5, the SD magnitude estimates extend to 9.9 mag with all fainter stars assigned a magnitude of 10. The SD contains a number of stars fainter than 10.0 mag and even some as faint as 11 mag. Lists of all corrections made to the original data as a result of published corrigenda, stars deleted according to overstriking in the printed catalogs or their inclusion in lists of 'missing' stars, and stars inserted in later editions are given. No other corrections or changes have been incorporated into the original data, e.g., from more modern positions and magnitudes or from comparison with other catalogs.


The cobalt-free layered perovskite oxides Sm1−xLaxBaFe2O5+δ (x = 0–0.5) (SLBFx, for short) have been systematically investigated to evaluate the feasibility of using them as cathodes for intermediate-temperature solid oxide fuel cells (IT-SOFCs). SLBFx powders with an orthorhombic structure were synthesized by the EDTA–glycine combustion method and were observed to be compatible with LSGM and SDC electrolytes below 1250 °C. The electrical conductivities of the SLBFx samples significantly increased with the substitution of La for Sm, with the highest conductivity of 37.8 S cm−1 obtained for the SLBF0.5 sample at 600 °C. Of the La-doped SmBaFe2O5+δ series samples, SLBF0.2 displayed the lowest thermal expansion coefficient (TEC) and the minimum electrode polarization resistance, with values of 16.51 × 10−6 K−1 in the 50–800 °C range and 0.24 Ω cm2 at 750 °C, respectively. The anode-supported single cell with SLBF0.2 as the cathode was able to generate a maximum power density of 558 mW cm−2 at 800 °C in humidified H2. All things considered, SLBFx materials are good candidates for cobalt-free cathodes in IT-SOFCs.


Certificates in the Internet map online identities like DNS names to cryptographic keys. Since they are highly trusted entities that can only be issued by a few trusted certification authorities (CAs), they are a costly security component in today's Internet. These CAs have to do extensive checks to ensure that a server is trusted. However, a large part of the Internet's servers do not require ultimate trust levels. We explore alternatives to the old-fashioned CA structure and come to the conclusion that these approaches provide completely sufficient security guarantees for low-volume servers. Many of these low-volume servers do not even use certificates because to them they are either too expensive or do not provide reasonable trust levels. These alternative techniques, when deployed, will be an inexpensive way for issuing certificates and hence increasing trust and security in networks.


Time was spent in investigating the occurrence of the weeds under the jurisdiction of the urban green space in districts,cities and counties of Chengdu area separately in winter-spring and in summer-autumn.The results showed that 46 branches and 192 species of weeds happened in Chengdu urban green space in the whole year.Dominant weeds in winter-spring were Oxalis corniculata,Stellaria media,Youngia japonica,Cornyza Canadensis,Hydrocotyle sibthorpioides,Mazus japonicus,Cardamine hirsute,Polypogon fugax and so on;Dominant weeds in summer-autumn were Digitaria sanguinalis,Kyllinga brevifollia,Alternanthera philoxeroides,Oxalis corniculata,Hydrocotyle sibthorpioides,Eleuine indica,Cornyza Canadensis,Kalimeris indiea,Galinsoga parviflora and so on.In Ophiopogon japonicus green space,glyphosate could be used with an effective volume of 615-861 g/hm2 to control all kinds of weeds.In Photinia serrulata green space,glufosinate ammonium can be used with an effective volume of 600-900 g/hm2 to control all kinds of weeds at post-emergence,and pay attention to direct spray.Before Photinia serrulata were transplanted or after manual weeding and before weeds bud,33 % pendimet EC (an effective volume of 643.5 g/hm2) or 24 % oxyfluorfen EC (an effective volume of 288g per hectare) could be used to control all kinds of weeds.In Cynodon dactyjon green space,100 g/L trifloxysulfuron sodium (22.5-30 a.i.g/hm2) or 25 % flazasulfuron WDG (56.25a.i.g/hm2) could be used to control all kinds of weeds.


We use the Qingrequzhuo capsule in the treatment of 62 cases diabetes metabolic syndrome.It can improve heart and arebrouascular diseases risk factors,such as hypertension,hyperglycemia,hyperlipidemia and ete.


27 December 2008, the first anniversary of the assassination of Benazir Bhutto, was not only a day for paying tributes but also an occasion to reflect on the direction Pakistan has taken over the past year. The assassination set off a series of events that no one could have predicted. With so much popular support, with a weakened establishment and retreating military, real democracy was poised to take root in Pakistan after the elections of February 2008. Sadly, however, the Zardari government has done the greatest disservice by not taking the steps necessary to deepen democracy in the country.


The aim of this study is to shed some light on the factors determining the investment decisions of Sovereign Wealth Funds. Using the financial data from companies listed on the Warsaw Stock Exchange, the author employs a logit model to analyse the probability that firms are targeted for investment by the Norwegian Sovereign Wealth Fund. These findings suggest that not only the growth of earnings per share increases the probability of such investment, but that also a company whose shares have been bought by the Government Pension Fund Global has, on average, a higher level of earnings per share than companies not targeted by the Fund. This study contributes to a deeper understanding of the investment activities of the world's largest Sovereign Wealth Fund.


The existence of interfacial states and fixed charges between the silicon and sapphire films create an electric field that affects the diffusion of impurities near the interface. The effect of this field is modeled as a new term in the diffusion equation. A computer program was written to numerically integrate the diffusion equation for a one-dimensional model. The results were correlated with SIMS data for high-concentration phosphorus profiles. A predicted peak in the phosphorus concentration at the silicon-sapphire interface, due to the effect of negative charges at that interface, was confirmed. A pipe diffusion model was incorporated to account for the higher (than bulk silicon) diffusivities observed. New values of skewness were also needed to match implanted profiles with Pearson-IV type distributions.


Currently, low-resolution image recognition is confronted with a significant challenge in the field of intelligent traffic perception. Compared to high-resolution images, low-resolution images suffer from small size, low quality, and lack of detail, leading to a notable decrease in the accuracy of traditional neural network recognition algorithms. The key to low-resolution image recognition lies in effective feature extraction. Therefore, this paper delves into the fundamental dimensions of residual modules and their impact on feature extraction and computational efficiency. Based on experiments, we introduce a dual-branch residual network structure that leverages the basic architecture of residual networks and a common feature subspace algorithm. Additionally, it incorporates the utilization of intermediate-layer features to enhance the accuracy of low-resolution image recognition. Furthermore, we employ knowledge distillation to reduce network parameters and computational overhead. Experimental results validate the effectiveness of this algorithm for low-resolution image recognition in traffic environments.


As investigation subject,the investigation crew plays an extremely essential role in carryout out temptation investigation.In many such case as drug and smuggling,investigation staff even participated the whole process of committing crimes together with criminal suspects,and they have the most intuitional feeling and are most qualified to speak,which directly influences temptation investigation and affirmation of evidences obtained.In essence,temptation investigation crew serving as a witness in court is still a kind of testification.Crossing interrogation regulations suiting temptation investigation crew should be established to offer them special protection.


Abstract Reported here is a study of the pattern of lattice curvature near the interface of deformed high-purity aluminium (99.9999%) bicrystals of specified crystallographic character (large-angle random). Curvature data are obtained from electron back-scattering diffraction pattern observations using orientation imaging microscopy. The concept of geometrically necessary dislocations (GNDs) is used as the central tool in the description of the observations. The samples studied were channel-die compressed perpendicular to the interface to plastic strain levels of 0.1 and 0.3. At a strain level of 0.1 the primary observation is the development of a pile-up of GNDs (i.e. lattice curvature) near the interface. At the higher strain level of 0.3, however, a dramatic change in the distribution is observed. The nature of this change suggests that the interface has absorbed (or emitted) some components of the nearby GND field. with an accompanying change in the local character of the interface towards a broader dispersion of misorientation character.


On the basis of analyzing the existing problems of teachers' teaching quality evaluation system, the aim of teaching evaluation with the development of teachers and the improvement of teaching quality is put forward. Evaluation system is improved and includes teaching basis indexes, teaching process indexes and teaching effect indexes. Extension theory is introduced to evaluate the teaching quality comprehensively. The novel evaluation system provides a new reference for the evaluation of teachers' teaching quality.


This paper expatiates the process of production craft of water factory,states the principle of the design of iFIX software,requirement of control and network connections,puts forward the main technical difficulties of application of iFIX software in the automatic system of water factory,and emphasizes the introduction equipment of long-distance node and the solution of the function report,giving part of the main procedures code and setting up a new workable way to meet to the requirements of the report system in the water factory system.


This work presents a hybrid tissue-anchoring mechanism that combines a pre-compressed microspring for autonomous actuation and a barbed microneedle (MN) for robust tissue anchoring with minimized preloading. The spring-microneedle unit (SMU) allows facile integration with potential ingestible resident systems to enable prolonged operation in the gastrointestinal (GI) tract (e.g. biomarker monitoring and therapeutic drug delivery). Utilizing high-precision direct laser writing (DLW), the SMU is directly fabricated on a flexible polyimide substrate, which that can be conveniently attached onto the exterior packages of ingestible devices to reduce the form factor and therefore to save room for multifunctional system components. The 3-D printed microspring can be compressed and embedded within a thin layer of dissolvable polymer (polyethylene glycol) and autonomously actuated with a ~140- $\mu \text{m}$ displacement upon polymer dissolution in aqueous media at 37°C. Mechanical calibration of the SMU demonstrated an average release force of 8 mN for a 100- $\mu \text{m}$ actuation. According to our previous research into barbed MNs, this actuation force provides a large enough preload for a MN to achieve robust tissue-anchoring. Above all, the novel and effective tissue-anchoring mechanism has a great potential for enabling long-term operation of miniature biosensing and drug delivery systems. [2020-0169]


In this work we propose the simulation of a PID controller to solve two problems, namely: 1) Recovery signal with perturbation, using Simulink. 2) Tracking signal for a motor with perturbation in two ways, using Simulink and using a Matlab program. The aim of this work is to show particular examples, where Simulink changes the expected behavior of the model. We emphasize the importance of numerical integration of differential equations and the bounded signals treatment Keywords-PID simulation; PID control; DC motor model; Simulink; Matlab; numerical integration; aliasing.


According to the scheduling demand in hospital,online scheduling process is proposed in the paper.Based on ASP and SQL Server 2008,online scheduling system is developed mainly focused on the function design and realization process.Different authorities are set according to different users,so as to conserve resources reasonably and improving efficiency.


Measurement of the characteristic impedance of a 0.25-in.-wide microstrip on 0.25-in. alumina by two new, accurate techniques showed the expected small decrease as frequency changed from 400 to 1000 MHz, and an unexpected increase as frequency went from 1000 to 2400 MHz.


The dielectric property of ZnFe2O4 – SiO2 composite thin films deposited on Pt-Ti-SiO2-Si substrates, prepared by sol-gel method, are investigated. It is observed that the thin films consist of ZnFe2O4 nanoparticles embedded in the matrix of SiO2. Such a composite structure exhibits a significantly enhanced dielectric constant with respect to SiO2 thin films without too large dielectric loss enhancement.


This study aims to determine whether family support can affect the psychological well-being in retirement. The research subject is a retired Semen Gresik, domiciled in Gresik, aged over 55 years.In this study, variable x that is family support using the theory of Smet (1994) and variable Y that is psychological well-being using the theory of Ryff (1989). The sampling technique used was purposive sampling. To test the quality of themeasuring instrument used to test the validity of the content on professional judgment and SPSS 16.0 for Windows and test reliability with Chronbach Alpha technique. Questionnaires family support, after the first round has a reliability coefficient of 0.818, psychological well-being scale has a reliability coefficient of 0.781. Data analysis is conducted with the statistical technique of regression analysis by using SPSS statistical program version 16.Based on the result of data analysis, obtain value F table > F so that the regression equation is not acceptable. With the result can be conclude that there's no effect family support to psychological well-being on retirement.


Nowadays, we are witnessing trends in technology, fabrication processes and computing architectures that lead to the design and development of processing systems constituted by a relevant number of independent, heterogeneous execution resources. The aim is to achieve high-performance while leveraging on other aspects, such as energy consumption. Indeed, heterogeneity comes at the cost of greater design and management complexity. To reach an optimal solution, system architects need to take into account the efficiency of systems' units, i.e., general purpose processors eventually with one or more kinds of accelerators (e.g., GPUs or FPGAs), as well as the workload. This often leads to inefficiency in the exploitation of such resources, and therefore in performance/energy. Within this context, we are proposing a runtime resource manager able to observe the system execution and to dynamically optimise its behaviour with respect to one or more identified functional parameters, according to the architectural characteristics, and the users' and the applications' needs. Such an adaptation characteristic is intrinsically embedded in the device as a software layer, called Orchestrator, able to adapt the runtime resource management according to the target objectives and to the inputs from the external environment.


Threshold voltage shift is a major problem for UMOS device. This study explains how device performance can be affected by silicon defects (interstitial and Vacancy). Interstitial may be induced by epitaxy process or trench process. Interstitial enhances the dopant diffusion. In TCAD simulation interstitial distribution is different for different diffusion model and shows shift in the threshold voltage for different interstitial distribution.


Objective To assess the value of using transcatheter arterial embolization in patients with refractory obstetric and gynecology hemorrhage.Methods Fouty-six patients with refractory obstetric and gynecology hemorrhage were divided into two groups.one group including 18 cases treated with transcatheter arterial embolization and another 28 cases treated with internaliliac artery ligation or uterine artery ligation.we then analysed the differences between the two groups by the average operation time,the amount of bleeding during operation,the proportion of hysterectomy after treatment and other complications.Results The operation time and bleeding time in patients treated with transcatheter arterial embolization was short(60.2% and 70.8% of artery ligation,respectively),the proportion of hysterectomy after artery ligation treatment was 5%,and there were not another complications.Conclusion Transcatheter arterial embolization treatment in the patients with refractory obstetric and gynecology hemorrhage is significant and can be used effectively in the hospital.


The polymeric bio-composite material is a material constituent a polymeric matrix (resin) and a reinforcement of natural fibers which are usually derived from plants or cellulose. The objectives for this study are to study on the impact properties and flexural properties of the polymeric composite. The bio-material material that used to fabricate the specimens was based on commercially available unsaturated polyester. kenaf fibre from kenaf plant. Besides that, the fibre that used will treated with alkali treatment with various concentrations such as 3%, 6% and 9% NaOH but with same soaking times that is 12 hours. For the manufacturing process, the kenaf / polyester is prepared by using Resin Infusion Process (RIP) with several equipments and tools. 5 pieces specimens of each testing were tested with flexural and impact machine. Following by that, the morphology of the surface fracture is investigated using Scanning Electron Microscope (SEM). Based on this finding, the flexural properties was increasing gradually as the chemical concentration treatment in composite increased. It is observed that the flexural strength increased from 0.0251 GPa to 0.0934 GPa and flexural modulus increased from 2.298 GPa to 7.137 GPa respectively for untreatment fibre to 9% fibre. Lastly for the impact properties, the impact strength and impact modulus are indicated a rise from 3.57 kJ/m2 to 15.77 kJ/m2 as the fibre content increased from untreated to 6% concentration but decreased to 2.47 kJ/m2 when used 9% concentration treatment on kenaf fibre. This is because this natural fibre is considered oriented short fibre composites with strong cellulossic microfibres of different lengths.


The shapes of the real-phonon and pseudo-phonon sideband holes (PSBH) which occur in hole-bumed spectra in amorphous solids are both wavelength and bum time dependent. The theory previously proposed to simulate hole shapes in the short burn time limit is extended to examine the PSBH shapes at arbitrary times and at different bum wavelengths. The simulated spectra are compared with experimental data for tetraphenyl porphyrin in polystyrene. It is also shown the stimulated spectra may be used to deconvolve the antihole spectrum from the hole spectrum.


The rejection level is improved from 17 to 45 dB and the back reflection suppressed from mu1 to mu13 dB in a PLC-type slanted-grating simply by increasing the waveguide width from 8 to 28 mum


In a linear resistive network, a maximal set, called a basis, of variables that are linearly independent with respect to coefficients that are rational functions in edge admittances is determined. It is shown that the basis is an important concept in linear network analysis in the sense that any network equation can uniquely and minimally be expressible in terms of the elements in a basis. In order to characterize the algebraic structure of the variables in connection with the basis, existence theorems on mappings from given variables to all the source currents and voltages are presented.


Solar images observed in different channels with different instruments are crucial to the study of solar activity. However, the images have different fields of view, causing them to be misaligned. It is essential to accurately register the images for studying solar activity from multiple perspectives. Image registration is described as an optimizing problem from an image to be registered to a reference image. In this paper, we proposed a novel coarse-to-fine solar image registration method to register the multichannel solar images. In the coarse registration step, we used the regular step gradient descent algorithm as an optimizer to maximize the normalized cross correlation metric. The fine registration step uses the Powell–Brent algorithms as an optimizer and brings the Mattes mutual information similarity metric to the minimum. We selected five pairs of images with different resolutions, rotation angles, and shifts to compare and evaluate our results to those obtained by scale-invariant feature transform and phase correlation. The images are observed by the 1.6 m Goode Solar Telescope at Big Bear Solar Observatory and the Helioseismic and Magnetic Imager on board the Solar Dynamics Observatory. Furthermore, we used the mutual information and registration time criteria to quantify the registration results. The results prove that the proposed method not only reaches better registration precision but also has better robustness. Meanwhile, we want to highlight that the method can also work well for the time-series solar image registration.


The German Physicist Ernst Abbe has discovered the fundamental diffraction limit of optical resolution in 1873. Even being depicted on his grave, this relation was carved in stone for about 100 years until scientists started to reveal how to trick physics and build microscopes that enable much better resolutions than fixed by Abbe's famous formula. The importance of these developments is underlined by 2014's Nobel Prize in Chemistry being awarded to Eric Betzig, William E. Moener, and Stefan W. Hell. Such approaches to super-resolution fluorescence microscopy [1], also termed "nanoscopy", exploit dynamics of either the illumination of the sample [2-4], the fluorescent probes [5-10], or both [11-13] to increase the resolution.


This research deals with the influence of service scape and human service on customers' emotional reaction
and satisfaction and verify mediative...


Graphene has attracted a great deal of interest in the past several years.[1–5] New physics has been predicted and observed, such as ultrahigh carrier mobility,[6] electron-hole symmetry and quantum hall effect,[2, 4, 7–9] and the strong suppression of weak localization.[10–12] For mainstream logic application, graphene nanoribbons (GNRs), as thin strips of graphene or unrolled carbon nanotubes, are predicted to be semiconducting due to edge effects and quantum confinement.[13–15] Recent experimental studies have also demonstrated that GNRs can effectively function as a semiconducting channel for room-temperature field-effect transistors.[16–22] By varying the width of GNRs at selected points, it is also possible to create graphene quantum dots within a GNR for single electron transistors.[23] These studies represent important advances in GNR based electronics. However, most of the efforts to date employ a silicon substrate as a global back gate and silicon oxide as the gate dielectrics. While such a device has led to many interesting scientific discoveries, it will be of limited use for practical applications due to the high gate switching voltage required and the inability to independently address multiple units on the same chip.[17, 20, 21] Top-gated devices with high-k dielectrics can significantly reduce the required switching voltage and allow independently addressable device arrays and functional circuits, and therefore are of significant interest.


the paper used the ARM Crotex-M3 as the control core and the liner varying differential transformer(LVDT) to complete the small displacement measurement,the system includes incentives sine signal source,differential transformer,signal measurement and data acquisition,displacement control.And with relevant analog circuits,the system can measure the displacement precisely.


We put forward a proposal for a benchmark calculation of the deuteron form factors. The purpose of the benchmark is to define more accurately what we mean by 'relativistic effects'. A first step to that goal is made here: We define a model Lagrangean in the spirit of the Walecka model, namely one having only a scalar meson σ , and a vector one, ω . In order to regularize this model, two Pauli-Villars particles are introduced, one regularizing the scalar exchange and one regularizing the vector exchange.


Based on the changing law of the experimental pressure and flowing angle of spiral-flow on plain,this paper analyses the relationship between the flowing angle of spiral-flow on plain and pressure;and studies the relationships beteen the shear stress and pressure,flowing velocity,revolving intensity,velocity of the frictional resistance,pressure difference coefficient and the spiral sediment discharger.the shear stress and pressure were computed with Blassuis formula and kinematic formula separately and the conclusion was tested with the experimental data.It is indicated that the main factor of effecting pressure difference and pressure difference coefficient is the flow angle.The lower the interstice is,the higher the pressure difference is,and the force of pushing spiral sediment discharger is more increased.


The propagation of Lamb waves in a homogeneous, transversely isotropic, piezothermoelastic plate, which is stress free, electrically shorted, and thermally insulated (or isothermal), is investigated. Secular equations for the plate in closed form and isolated mathematical conditions for symmetric and antisymmetric wave mode propagation are derived in completely separate terms. It is shown that the motion of the purely transverse shear horizontal (SH) mode gets decoupled from the rest of the motion and remains unaffected due to piezoelectric, pyroelectric, and thermal effects. The secular equations for stress-free piezoelectric, thermoelastic, and elastic plates are deduced as special cases in the current analysis. At short wavelength limits the secular equations for symmetric and skew symmetric modes reduce to Rayleigh surface wave frequency equation, because a finite-thickness plate in such a situation behaves like a semi-infinite medium. The amplitudes of dilatation, electrical potential, and temperature change are also computed during the symmetric and skew symmetric motion of the plate. Finally, numerical solutions of various secular equations and other relevant relations are carried out for cadmium selenide (6 mm class) material. The dispersion curves, attenuation coefficients and amplitudes of dilatation, temperature change, and electrical potential for symmetric and antisymmetric wave modes are presented graphically to illustrate and compare the analytical results. The theory and numerical computations are found to be in close agreement. The coupling between the thermal/electric/elastic fields in piezoelectric materials provides a mechanism for sensing thermomechanical disturbances from measurements of induced electric potentials and for altering structural responses via applied electric fields. Therefore, the analysis will be useful in the design and construction of Lamb wave sensors, temperature sensors, and surface acoustic wave filter devices.


Wendy Moncur and Dr Gregory Leplâtre provide an introduction to some of the problems relating to memory and the ability of the human to recall passwords.


Choice tests were conducted to determine relative degree of specialization of feeding behavior of 11 Mexican diabroticite species in the genera Acalymma and Diabrotica (Chrysomelidae: Luperini). Adult beetles were offered a choice between cotyledons of a non‐bitter (not containing cucurbitacin) cucurbit (C. pepo L. var. Crookneck), corn (Zea mays L.), and beans (Phaseolus vulgaris L.). In a second assay a bitter (containing cucurbitacin) cucurbit (C. pepo L. var. Ambassador) was added to the array of plants offered. Neonates of two species of Acalymma and one species of Diabrotica were offered a choice between roots of a non‐bitter and a bitter cucurbit, and between a bitter cucurbit and corn.