Search Results: 1 - 10 of 73 matches for " Charl Mattheus "
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Saving One Smile at a Time: Oral Health Promotion in Pediatric Primary Care Practice [PDF]
Deborah J. Mattheus, Charl Mattheus
Open Journal of Nursing (OJN) , 2014, DOI: 10.4236/ojn.2014.46046
Oral health continues to be a major issue affecting children these days. Early childhood caries are considered to be the most common chronic childhood disease in the United States. Despite the availability of Medicaid, millions of children can still not access a dental provider to receive proper care. Getting children in for dental care early in their lives saves money. Children that do not receive proper oral health care during their childhood are at higher risk for more complex and restorative care as they age. Plans to reduce childhood caries include more creative interventions such as oral assessment, education and fluoride varnish application in primary care practices. Pediatric primary care providers are trusted by parents to care for their children and have an ideal opportunity to make a lasting impression and create behavioral changes in oral health during their frequent contacts with children and families. Integrating oral health promotion is a simple task with numerous benefits for children and families, as well as primary care doctors' offices. With proper professional and governmental support oral health promotion programs in primary care practice can further increase in number which can ultimately improve oral health outcomes, save time and prevent costly dental repairs, as well as benefit the practice through proper reimbursement.
Laps(ep lv) 19. sajandi teise poole Eestis omaelulooliste tekstide n itel. Child(hood) in 19th Century Estonia: a Study of Autobiographical Texts
Ave Mattheus
Methis : Studia humaniora Estonica , 2010,
Abstract: In this article I discuss autobiographical texts which focus on children and childhood in late 19th century Estonia. Childhood memories as well as other autobiographical material became popular in Estonia in the 1920s-1930s, when most of the studied works--the memoirs by Anna Haava, Mait Metsanurk, Jaan Lattik, Jaan Vahtra, Friedebert Tuglas, August Kitzberg and Marta Sillaots--were written. Some texts come from the 19th century (e.g. Lilli Suburg's autobiographical works) or early 20th century (e.g. manuscripts by Hans Leoke, and Johannes K rv). Childhood as described in these autobiographical texts covers a period of circa 1850-1900, and the majority of the authors come from the families of South-Estonian peasants or manorial servants. In addition to being written in Estonian and having the same theme, they were all also written by authors of fiction for children or by people who had close contact with children, such as schoolteachers. The article offers a novel approach in the Estonian context by presenting a typology of childhood stories and looking at childhood recollections as an important part of childhood studies. The researchers of childhood investigate how society understands and values children and childhood, what children's everyday life is like, what possibilities there are for development and if there exists a specific children's culture in society (such as clothing, food, language, leisure activities, or independent creative work). Childhood studies as a separate discipline does not exist in Estonia, although some important works have been published by educational scholars and art historians. The autobiographical texts under discussion show that in the late 19th century, the majority of Estonian children lived in the countryside in patriarchal families, and childhood was short because children had to help their parents with farmwork quite early, at the age of six. The boundary of childhood was around the age of 10-11, when children started school and often left their childhood homes as the schools were usually far away. Childhood in the city is described by one author (Sillaots) and this is only natural as urbanisation in Estonia gained momentum in the early 20th century. Although childhood in Estonia in the late 19th century had scarcely any specific elements of children's culture (children in the cities had more toys, children-style clothes, leisure, etc.), this period in the authors' lives is remembered as a carefree and happy time. We should emphasise that in early Estonian childhood memories, the child is described as emotionally vuln
The international impact of Education research done and published in South Africa
Charl Wolhuter
South African Journal of Education , 2011,
Abstract: The aim of this article was to determine the international impact of Education research in South Africa, through a citation analysis of articles published in the South African Journal of Education from 2000 to 2010 The citation impact (nationally as well as internationally) was found to be low. The international impact has been particularly poor, both quantitatively (in terms of the number of citations) and qualitatively (in terms of the standing of the publications in which this research does get cited, seen in the context of the hierarchy of scholarly publications). The article shows that certain topics of research in South Africa fail to break through to the international arena at all, such as research on the current restructuring of education in South Africa. Research that was cited most often in international journals dealt with research methodology, creativity and entrepreneurship education, beliefs and perception studies, and language-in-education in South Africa. In conclusion, a number of recommendations are made for raising the international profile of Education research that is done in South Africa and for further research in pursuance of that objective.
Experimental and modeling studies of mass transfer in microencapsulated cell systems
Mattheus F. A. Goosen
Tropical Journal of Pharmaceutical Research , 2002,
Abstract: Gaining a better understanding of mass transfer problems in encapsulated cell systems and in tissue engineering requires both experimental investigations and mathematical modelling. Specific mass transfer studies are reviewed including oxygen transfer in immobilised animal cell culture systems, modelling of electrostatic polymer droplet formation, and growth of plant somatic tissue encapsulated in alginate using electrostatics. Trop J Pharm Res, June 2002; 1(1): 3-14
Kinetic and High-Pressure Mechanistic Investigation of the Aqua Substitution in the Trans-Aquaoxotetracyano Complexes of Re(V) and Tc(V): Some Implications for Nuclear Medicine
J. Mattheus Botha,Andreas Roodt
Metal-Based Drugs , 2008, DOI: 10.1155/2008/745989
From Protesters to MartyrsHow to Become a 'True' Sikh
Charlène Simon,Lionel Baixas
South Asia Multidisciplinary Academic Journal , 2008,
Abstract: This article studies the protest which started in Punjab in May 2007 following a ceremony performed by Baba Gurmeet Ram Raheem Singh (GRRS), head of Dera Sacha Sauda, which was considered as blasphemous by a section of the Sikh community. The aim of this article is to understand the motivation of the actors of the protest itself: How did the Sikh protesters legitimate their reaction one year later? What kinds of reasons have led hundreds of Sikhs from very different social background to take the streets?What kind of emotions played a role in the Sikhs' mobilization?
A transitiological study of some South African educational issues
Corene de Wet,Charl Wolhuter
Abstract: In this study enrolment numbers and levels, as well as language-in-education, were viewed from a linear, comparative perspective. In the era prior to 1994, black and white learners not only attended separate schools but the segregated schools had different policies regarding medium of instruction. Resistance to the language policy regarding black education culminated in the 1976 uprisings. This led to the scrapping of both Afrikaans and black home languages as language of instruction in black schools. After the uprisings, black schools fol-lowed a policy of decreasing bilingualism. After 1994, in the spirit of democracy, official and educational status were granted to eleven languages. Deep-seated distrust and fear, that home-language education would lead to impoverishment, social and political isolation, and disempowerment, caused the majority of South African learners to prefer English rather than their home language as language of instruction. From a linear comparison, it transpires that the language-in-edu-cation situation in the classroom has changed very little since 1994. Enrolment numbers and levels, particularly the disparities between white and black, were other points of criticism regarding the education system before 1994. Prior to 1994, compulsory education had only been fully implemented with regard to the white and, to a lesser extent, Indian and coloured sections of the population. The vision that the ANC had in 1955, that "the doors of learning shall be open", was only reflected in policy documents and laws. Both primary-school and secondary-school enrolment numbers showed an increase after the ANC govern-ment came to power. The net enrolment numbers (1995-2004) for primary education showed a decrease from 95.0% to 87.4%,but the enrolment numbers for secondary education showed an increase from 56.0% to 67.2%. Despite the latter positive statistics, it would appear that the objective of universal education has still not been realised in South Africa.
Water Desalination Using Geothermal Energy
Mattheus Goosen,Hacene Mahmoudi,Noreddine Ghaffour
Energies , 2010, DOI: 10.3390/en3081423
Abstract: The paper provides a critical overview of water desalination using geothermal resources. Specific case studies are presented, as well as an assessment of environmental risks and market potential and barriers to growth. The availability and suitability of low and high temperature geothermal energy in comparison to other renewable energy resources for desalination is also discussed. Analysis will show, for example, that the use of geothermal energy for thermal desalination can be justified only in the presence of cheap geothermal reservoirs or in decentralized applications focusing on small-scale water supplies in coastal regions, provided that society is able and willing to pay for desalting.
Preliminary Characterizations of a Carbohydrate from the Concentrated Culture Filtrate from Fusarium solani and Its Role in Benzo[a]Pyrene Solubilization [PDF]
Etienne Veignie, Evgeny Vinogradov, Irina Sadovskaya, Charlène Coulon, Catherine Rafin
Advances in Microbiology (AiM) , 2012, DOI: 10.4236/aim.2012.23047
Abstract: In order to investigate the mechanism of benzo[a]pyrene uptake by a filamentous fungus Fusarium solani, a biochemical characterization of its concentrated culture filtrate has been conducted. The preparation contained approximately (w/w): 50% of total carbohydrate, 6.5% of uronic acid and 6% protein, as determined by colorimetric tests. Gel filtration and anion-exchange chromatographic profiles indicated that the main product of the culture filtrate was a glycoprotein, which contained mannose, glucose and galactose in an approximate molar ratio of 1.5: 0.8: 1. The polysaccharide fraction of the culture filtrate was prepared by treatment with proteinase K, followed by gel-filtration chromatography. Its chemical structure was studied by methylation analysis, gas-liquid chromatography-mass spectrometry (GC-MS) and Nuclear Magnetic Resonance spectroscopy (NMR). The major carbohydrate was a polymer of β-(1 → 6)-linked galactofuranose units fully branched at positions O-2 by single residues of α-glucopyranose. The Fusarium concentrated culture filtrate increased 4-fold the BaP solubilization in comparison with its aqueous solubility and suggested that the carbohydrate present in this filtrate should probably be involved in this enhancement. Our findings point out the potential role of fungal glycoproteins in PAH microbial bioavaibility, an important step for PAH biodegradation.
Stress-Induced Dispersal of Staphylococcus epidermidis Biofilm Is Due to Compositional Changes in Its Biofilm Matrix [PDF]
Charlène Coulon, Irina Sadovskaya, Philippe Lencel, Sa?d Jabbouri, Jeffrey B. Kaplan, Sigrid Flahaut
Abstract: Biofilm formation is an important virulence factor of Staphylococcus epidermidis. However, little is known about the mechanisms of staphylococcal biofilm dispersal. In the present study, we investigated biofilm dispersal of the model biofilm-forming strain S. epidermidis RP62A under oligotrophic stress conditions. We found that oligotrophic stress led to rapid dispersal of pre-formed biofilms and concomitant changes in the composition of the extracellular matrix, including a decrease in poly-N-acetylglucosamine polysaccharide and an increase in proteins. Our results suggest that modifications in biofilm integrity caused by compositional changes in the biofilm matrix can induce biofilm dispersal.