In this study, a novel long period fiber grating (LPFG) sensor coated with a thin film of nano iron and silica particles is proposed, designed, and tested for corrosion and environmental monitoring. Nano iron particles were introduced to facilitate the monitoring of the corrosion rate while nano silica particles were added to improve coating transparency and robustness. Proof-of-concept tests have demonstrated that the coated thin film did not affect the sensitivities of either the intensity or wavelength of the LPFG sensor to temperature and pH values. However, the resonant wavelength of the coated LPFG sensor increased as iron particles were gradually corroded away. Therefore, with a parallel LPFG sensor for nearby temperature and pH measurements, the proposed novel sensor can measure the corrosion rate of nano iron particles and, once calibrated and correlated, provide critical information about a nearby reinforcing steel bar and structural member.


The first systematic experimental studies on the labyrinthine instabilities of miscible ferrofluids in a Hele-Shaw cell are presented. Two distinct features of instabilities are observed: (i) the miscible labyrinthine fingers caused by the magnetic dipolar forces; (ii) the secondary waves dominated by the third-dimensional effects. Prominence of the labyrinthine fingers is confirmed to be affected significantly by both the magnetic field strength and the cell gap width. On the other hand, wave selection of the secondary wave numbers is mainly dominated by the gap width. The characteristic wavelength λ of the secondary waves follows a nearly linear correlation with the gap width h, which is consistent with earlier findings on the viscous fingering instability. The wavelength can be approximated as λ≈(7±1)h.


This paper addresses the identifier ownership problem. It does so by using characteristics of Statistic Uniqueness and Cryptographic Verifiability (SUCV) of certain entities which this document calls SUCV Identifiers and Addresses. Their characteristics allow them to severely limit certain classes of denial of service attacks and hijacking attacks. SUCV addresses are particularly applicable to solve the address ownership problem that hinders mechanisms like Binding Updates in Mobile IPv6. keywords: Security, Mobile IPv6, Address ownership.


Between 21st and 23rd February 2011, Oxford Archaeology East carried out an archaeological evaluation in the grounds of Cherry Hinton Junior School, Cambridgeshire. This was in advance of the construction of an extension to the school and a new all weather pitch. Three trenches were excavated, which revealed evidence of ridge and furrow cultivation, aligned perpendicular to Fulbourn Old Drift, reinforcing the idea that this represents an old droving route.


This article derives and offers conclusions from a literature review coupled with a study of California narcotic police operations over this last year. The bibliography and, perhaps, excerpts from the basic working paper may become available. * Since, at the time of this writing, it appears equally likely that they may not, this article is put forward.


Cinema in the new millennium is facing, as all areas of knowledge and human life to a
paradigm shift. Immersed in the complexity of the technology, the global economic
and social crisis, needs to be studied from a new methodology that since a new
epistemological perspective, take into deep consideration a new perspective of the
world from the non�]dual mind.


A method and device for searching GPS perimeter. The method comprises the steps of: drawing a preset shape by using a preset GPS position of a server as the center (S1); and determining whether the GPS position of each client falls into the range of the shape, and if yes, determining that the client is within the perimeter of the server (S2). The device comprises: a drawing module (10), used for drawing a preset shape by using a preset GPS position of a server as the center; a determining module (20), used for determining whether the GPS position of each client falls into the range of the shape, and if yes, determining that the client is within the perimeter of the server. The method and device can reduce data calculation quantity.


The moisture contents of the flesh and pits of Deglet Noor dates, with flesh moisture contents ranging from 13 to 30%, wet basis, were determined by vacuum oven drying. Impedance measurements at frequencies of 1 and 5 MHz were made on a parallel-plate capacitor with individual whole dates and pitted dates held between the capacitor plates. Moisture content of the dates was related to the impedance measurements by a stepwise multiple regression technique. Linear single-variable models were developed that provide an instantaneous and nondestructive determination of moisture content with standard errors of about 1% moisture content. The technique is recommended for potential development and application in reducing the skilled labor requirements for manual sorting and grading of dates.


A method is described for the determination of general solutions to the equations governing the steady two-dimensional motion of a viscous liquid. Solutions are found both implicitly defined and explicitly containing two arbitrary complex functions. In general the solutions are confined to specific regions of the complex plane depending on the arbitrary functions.


Geometry holds a special place in Mathematics. Learning of Geometry requires understanding and integrating a wide range of topics such as coordinates, shapes, theorems, proofs, properties and formulae, to name a few. In 3D geometry, students find difficult the manipulation of 3D objects and interpreting their structure and properties, such as volume and surface area. Research shows that students mainly focus on the formulae and the numerical operations to calculate the volume or the surface area of a 3D object, and not on visualizing the 3D objects. Various media such as images, animation, simulations and 3D geometric software have been used to help learners visualize 3D shapes. However, the affordances provided by these media do not fully support the construction and manipulation of 3D objects. Based on an embodied interaction approach, we have designed a gesture-based application for high school students to learn the properties of 3D objects. In this paper, we describe the design of the application, "Geometry-via-Gestures" (GvG), which enables learners to construct a right circular cylinder using gestures and derive its volume. We present the results of the first prototype pilot and the proposed redesign.


COVID-19 is a disease that can be spread easily with minimal physical contact. Currently, the World Health Organization (WHO) has endorsed the reverse transcription-polymerase chain reaction swab test as a diagnostic tool to confirm COVID-19 cases. This test requires at least a day for the results to come out depending on the available facilities. Many countries have adopted a targeted approach in screening potential patients due to the cost. However, there is a need for a fast and accurate screening test to complement this targeted approach, so that the potential virus carriers can be quarantined as early as possible. The X-ray is a good screening modality; it is quick at capturing, cheap, and widely available, even in third world countries. Therefore, a deep learning approach has been proposed to automate the screening process by introducing LightCovidNet, a lightweight deep learning model that is suitable for the mobile platform. It is important to have a lightweight model so that it can be used all over the world even on a standard mobile phone. The model has been trained with additional synthetic data that were generated from the conditional deep convolutional generative adversarial network. LightCovidNet consists of three components, which are entry, middle, and exit flows. The middle flow comprises five units of feed-forward convolutional neural networks that are built using separable convolution operators. The exit flow is designed to improve the multi-scale capability of the network through a simplified spatial pyramid pooling module. It is a symmetrical architecture with three parallel pooling branches that enable the network to learn multi-scale features, which is suitable for cases wherein the X-ray images were captured from all over the world independently. Besides, the usage of separable convolution has managed to reduce the memory usage without affecting the classification accuracy. The proposed method managed to get the best mean accuracy of 0.9697 with a low memory requirement of just 841,771 parameters. Moreover, the symmetrical spatial pyramid pooling module is the most crucial component; the absence of this module will reduce the screening accuracy to just 0.9237. Hence, the developed model is suitable to be implemented for mass COVID-19 screening.


The bacterial flagellar filament is a helical propeller for the rapid swimming of bacteria. Its gently curved and twisted tubular structure is made of a single protein, flagellin, by its self-assembly in a helical manner. The mechanism for the formation of the left-handed helical tube for swimming and its dynamic polymorphic transition into right-handed forms for tumbling in response to quick reversal of the motor rotation has been revealed in the filament and protofilament structures at atomic detail obtained by convergent application of electron cryomicroscopy, X-ray fiber diffraction and X-ray crystallography with new technological devices in each of these methods.


Antimicrobial‐peptide‐based therapies could represent a reliable alternative to overcome antibiotic resistance, as they offer potential advantages such as rapid microbicidal activity and multiple activities against a broad spectrum of bacterial pathogens.


Using a new source of 19th century state prison records, this study contrasts the biological living conditions of comparable US African-American and white female statures during economic development. Black and white female statures varied regionally, and white Southeastern and black Southwestern females reached the tallest statures. White females were consistently taller than black females. Black and white female statures also varied over time with emancipation and were similar to black male stature variation, indicating that 19th century female net cumulative biological living conditions were similar to the lowest ranks of US male society.


Aims: Restoration of sinus rhythm in patients with Atrial Fibrillation (AF) prevents from thromboembolic events, decreases the risk for cardiomyopathy and improves quality of life. This study aimed to determine whether Tissue Doppler Imaging (TDI) during Transesophageal Echo (TEE) could predict successful electrical Cardioversion (CV) of AF lasting more than 48 hours but less than 6 months. Materials and Methods: One hundred patients, 74 men and 26 women of mean age 64.7±9.8 years old with non-valvular AF were included. Pulse Wave (PW) Doppler velocities as well as TDI velocities of the medial and lateral walls of the Left Atrial Appendage (LAA) were recorded during TEE before cardioversion. Synchronized electrical cardioversion was occurred within 12 hours after TEE using 100-200 Joules. We also evaluated LA size and the global strain of LAA. Results: Sinus rhythm restoration was succeeded in 80% of patients and maintained until discharge, 48 hours later. TDI velocities > 8cm/s were correlated with successful cardioversion (sensitivity 70% and specificity 63%) and were more predictive compared to PW Doppler velocities of > 40cm/s. TDI recordings at the medial LAA wall were more accurate, with less artefacts and better positioning of the sample volume. Global longitudinal strain was not significantly correlated with CV outcome. Conclusion: Our results indicate that TDI velocities of the LAA walls more than 8cm/s could be used as a cut-off value predicting successful cardioversion of AF. Current Trends in Internal Medicine Kostakou PM, et al. Curr Trends Intern Med 5: 153. www.doi.org/10.29011/2638-003X.100053 www.gavinpublishers.com


What happens to the pictorial content of fixations when we move our eyes? Previous studies demonstrate that observers are very poor at detecting changes in natural scenes that occur across saccades, blinks, and artificial interruptions ('change blindness'). They suggest that the visual 'snapshots' of what is on the retina during a fixation are not retained and fused over successive fixations. I find similar results when volunteers are performing the complex real-life task of making a cup of tea. Volunteers can access the snapshot of the current fixation but not those of previous fixations. I suggest that volunteers are reporting the content of a low-level visual store that holds a veridical snapshot of the current fixation, rather than the retina itself. The snapshots are not 'wiped' by the saccade and remain in the buffer until they are overwritten by a new snapshot. The overwrite occurs in an all-or-none manner and can be at any time within the first 400 ms of each new fixation, with 50% of overwrites being within the first 100 ms.


Study Design. Fourteen patients who had symptomatic dysplastic spondylolisthesis with an intact pars interarticularis underwent posterolateral spinal fusion. Patients initially had low back pain, tight hamstrings, and limited forward bending. In addition, four patients had signs of progressive cauda equina or nerve root impingement. In 10 patients (71%), preoperative degree of slippage was more than 50% (mean, 72%). Methods. Ten patients underwent in situ posterolateral spinal fusion, and four patients with progressive neurologic symptoms had posterior decompression followed by in situ posterolateral spinal fusion. Results. All patients had solid fusion at last followup. A pseudoarthrosis developed in one patient, which healed after a second operation. Roentgenographic progression of the slip after fusion was rare. Conclusions. This study demonstrated that for dysplastic spondylolisthesis in children and adolescents, in situ posterolateral spine fusion yields satisfactory results. In addition, in the presence of progressive cauda equina or nerve root impingement, posterior decompression may be necessary.


The potential region in which chalcopyrite dissolves during the oxidative leaching of the mineral in ferric sulphate solutions has been established. These results have been modelled using an extended mixed-potential description of the system. The initial stages of the dissolution process have been studied using a chalcopyrite disk and a platinum ring electrode held at appropriate potentials for the detection of ferrous and cupric ions. These experiments have shown that the initial stages of oxidation of the mineral involve the formation of soluble sulphur species in addition to elemental sulphur. The ring-disk experiments are generally consistent with thiosulphate as this species. The effect of potential and various ratios of ferric to ferrous ions on the rate has been investigated by both electrochemical and chemical analysis techniques. The role of non-oxidative dissolution in the leaching of chalcopyrite has been explored and it has been shown that the initial rate of non-oxidative dissolution is significant and could exceed the oxidative rate at long leach times.


The aim of this study is to examine the impact of price fairness on guest emotions, satisfaction and behavioral intentions in Malaysian P2P accommodation sector. The higher level of tourist arrivals towards P2P accommodations sector has drawn the attention of scholars and government. Therefore, this conceptual paper on P2P accommodation proposes an opportunity to examine the influence of external and internal stimuli on guest's behavioral intentions during their stay in P2P accommodation at Malaysia. The conceptual framework of this study is built on the basis of Stimulus Organism Response (S-O-R) theory. A complete study followed by a conceptual framework will be carried out by using structural equation modeling (SEM). The results of this study will benefit international tourists and local people of Malaysia who are engaged in P2P accommodation sector. In addition, the findings will give a better understanding of S-O-R theory.


In terms of soil fertility, zinc is a micronutrient that is very important in the culture of soy, maize, rice and coffee, because it is a structural and functional component of a great number of enzymes. Therefore, diverse methods have been used to determine zinc in soil. In this work we use colorimetry as a methods of zinc determination in soil using two methodologies of sample digesting, H2SO4/H2O2 and HNO3/H2O2. In order to compare the results, atomic absorption spectrometry (AAS) was used. Results show that colorimetric methods can be used due to good sensitivity and reproducibility, since the zinc calibration curve showed good linearity. Comparing colorimetric methods with AAS we observed that the results were equivalent, as proven by the statistical values of the F and t of Student tests. Furthermore, both methods of soil digesting can be used, leading to a flexible methodology of low-cost for routine zinc analyses in soil.


In this paper, Weight Decorrelated Stacked Autoencoder-Deep Neural Decision Trees (WDSAE-DNDT), a novel hybrid model is proposed for automating the assessment of children's speech fluency disorders by discerning their disfluencies. In fluency disorder classification, it is imperative to know how each feature contributes to the disorder classification rather than the diagnosis itself and so the depth modified DNDT acts as the best discriminator since it is interpretable by its very nature. The WDSAE presents DNDT with a high-level latent representation of the disfluent speech. A fusion feature vector was built by combining the prosodic cues from disfluent speech segments combined with the WDSAE-based Bottleneck features. The proposed hybrid model was compared with the performance of the experimented baseline models. Further analysis was carried out to check the impact of tree cut points for each feature and epochs on the accuracy of prediction of the hybrid model. The proposed hybrid model when trained on the fusion feature set has shown appreciable improvement in the area under the Receiver Operating Characteristics (ROC) curve, classification accuracy, Kappa statistical value, and Jaccard similarity index. The WDSAE-DNDT demonstrates high precision than the baseline models in setting clinical benchmark to distinguish subjects with dysphemia from those with Specific Language Impairment.


We have observed flight of ultralight sails of Carbon-Carbon microtruss material at several gees acceleration. To propel the material we sent a 10 kW, 7 GHz beam into a 10−6 Torr vacuum chamber and onto sails of mass density 5–10 g/m2. At microwave power densities of ∼kW/cm2 we saw upward accelerations of several gees and flights of up to 60 cm. Sails so accelerated reached >2000 K from microwave absorption, a capability of carbon which rules out most materials for high acceleration missions. Diagnostics were optical and IR video photography, reflected microwave power and residual gas analysis. Data analysis and comparison with candidate acceleration mechanisms shows that photonic pressure can account for 3 to 30% of the observed acceleration, so another cause must be present. Future research will measure the thrust precisely using a pendulum to try to identify the acceleration mechanism. In the future, microwave-driven acceleration might be used to propel probes to very high speeds for science missions t...


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Heating member includes a first polymer film having a conductive circuit. Circuit includes conductive ink, the second polymer film, and / or the resistive or conductive overmolding material. First polymer film is molded into at least one surface of the molded article. Molding becomes humidifier or humidifier components. Method for producing in-mold heating member and the step of providing a conductive circuit on the first polymer film surface, and placing the first polymeric film to the mold so that the non-printed surface of the polymer film adjacent to the mold, the first polymer film There and inserting the molding resin to be incorporated into at least one surface of the molded article. Humidifying method of breathing gas under pressure includes a step of passing the gas to feed water in the bath. Bath is formed of molded resin, polymer film, the heater comprising resistive or conductive film embossing, and / or the resistive or conductive overmolding material on the first surface is at least partially molded in resin .


Introduction: Pulmonary Epithelioid hemangioendothelioma (EHE) is a rare vascular tumor;with approximately 248 cases of reported in the literature, making diagnosis and management challenging. Case: A 57-year-old female with past history of hypertension, hyperthyroidism and scoliosis was admitted with worsening chronic right flank pain. Initial lab workup was unremarkable. revealed COVID-19 PCR test was negative. CT chest revealed bilateral pleural effusions and CT abdomen showed 2.8 x2.0cm vague hypo-attenuating lesion in the right hepatic lobe. A repeat CT scan following thoracentesis demonstrated multiple bilateral pulmonary nodules, with the largest located in the right lower lobe (RLL) measuring 2.1cm (Image). Flowcytometry on bronchoalveolar lavage fluid was significant for a CD4/CD8 ratio of 5;however, the transbronchial biopsy was unremarkable. Differential diagnosis included sarcoidosis and hence patient was discharged on prednisone with Bactrim prophylaxis. She underwent VATS lung biopsy. RLL and pleural biopsies revealed EHE. Following the prednisone taper, patient was placed on pazopanib 800mg. The dose of medication subsequently reduced to 300-600mg due to adverse events. Repeat CT scans at 3 months demonstrated minimal change in size of the nodules. Patient continues to be followed on regular basis with a stable clinical status. Discussion: EHE is a low-intermediate grade malignancy which affects mostly liver, lungs and bones;although it can be found in any bodily tissue. Up to 50- 76% of patients are asymptomatic at diagnosis, with the most common symptomatic being local pain. Radiologically, Pulmonary EHE consists of bilateral perivascular nodularity. Our case describes the clinical course of a rare and poorly understood disease. Clinicians must be aware of the characteristics of unusual diseases and pursue robust diagnostic approach. In our case, biopsy led to the definitive diagnosis of EHE. Because of its rarity, there is no standard therapy for metastatic disease. Pazopanib has demonstrated prolonged long-term disease control in observational studies. Some other reports have shown response to cytotoxic chemotherapy such as doxorubicin-containing regimens, however, long-term survival is compromised. Lenalidomide, sorafenib and sunitinib have also been used, but the experience is limited. Our patient is currently on her 4th month of treatment with pazopanib, with 3-month follow-up showing no progression of disease. (Figure Presented).


folklore; indeed, only two of its legends, that of the Devil and St Dunstan and that of the Devil's Dyke, are at all widely known. However, the field is far richer than it seems at first sight; if one looks through the various descriptive books about the county, the village and town histories, the memoirs of nineteenth-century clergymen, and the issues of the Sussex County Magazine (19261956), one finds quite enough local legends to warrant a folklorist's attention. I have recently completed an examination of the printed sources, supplemented by inquiries among friends and acquaintances, but not by systematic fieldwork.' Here I would like to discuss some of the legends I found, in relation to their local settings. The Sussex landscape is not dramatic. The coastal plain was almost featureless even before modern towns spread all over it; along the South Downs each gentle hill looks at first sight much like its neighbour; the valleys are smooth and broad, the rivers placid; north of the Downs stretch the woods and farmlands of the Weald. But even this quiet landscape has local features with a touch of oddity or eeriness about them, to serve as focus for a legend. To begin with the Downs themselves, 'there is gold in them there hills', or at any rate in some of them. On the Trundle, near Goodwood, Aaron's Golden Calf lies buried, and local people in the I870's claimed to know the very spot only no one could dig it up, because whenever anyone tried, the Devil came and moved it away.2 The same was said of Clayton Hill; on Mount Caburn there is a silver coffin, some say, or else, say others, a knight in golden armour; on Firle Beacon, another silver coffin; on Windover


Dedicated advanced packages are available from various sources to help analyze CT-A and MR-A. These applications often aim at providing a combination of several tools for vascular diagnosis, including tools for bone removal, vessel segmentation, path tracking, stent planning, curvilinear and straightened reformats, Maximum Intensity Projections (MIP) and 3D visualizations, and quantitative measurements of vascular lesions. Although each of these tools may provide useful results, this may happen at the cost of requiring considerable user interaction. For straightforward measurements, such as the degree of stenosis, these tools are often considered as cumbersome, complex or requiring too much interaction. This is why routine measurements such as stenosis degree, stenosis length, or vessel diameter are usually done by using "eyeballing", i.e. assessment with the unaided eye of the expert, even though referring physicians may prefer specific quantitative measurements.