OALib Journal期刊

ISSN: 2333-9721



匹配条件: “ Axel Ngoyi” ,找到相关结果约2310条。
Knowledge and Rates of Use of Preschool Consultation by the Mothers in the Area of Health Tshitenge/Democratic Republic of Congo  [PDF]
Jean Christophe Bukasa Tshilonda, Augustin Kadiata Bukasa, Zelda Nkongolo Kitenge, Isaac Kalenda Ilunga, Cedrick Ilunga Bimpa, Jean Pierre Kufua Katukumbanyi, Dominique Kapitena Mangola, Astrid Kabanga, Benedicte Bileo, Axel Ngoyi, Therese Kapenga Mitanta, Olivier Ejiba Nyongonyi, Paulin Kabamba Lupueka, Alain Ngoyi Kibambe, Jean Felix Kabangu, Geremie Kazadi, Alexis Ntambwe Mayombo, Andre Kazadi Mukendi
Open Access Library Journal (OALib Journal) , 2019, DOI: 10.4236/oalib.1105064
Introduction: The postponement of the preventive activities of the Provincial Division of Health of East Kasai 2016 revealed que le level of attendance of the preschool consultation is decreasing less and less in the Health Area Tshitenge. Thus, this study set the goal of determining the knowledge and use of maternal pre-school counseling in the Health Area Tshitenge. Methods: The survey method was used by means of a questionnary administered to mothers in this region, but more specifically, we collected data from 422 mothers responsible for randomly selected children aged 0 to 5 in the four health. Results: After analysis and analysis of the data with the computer tool, we obtained the following results: the rate of use of the preschool consultation service is 60.7%; the level of education, occupation and the number of children under 5 years of age have a strong influence on the use of preschool counseling; lack of knowledge about the most important activity of preschool counseling has a negative influence on its use. There is a link between the use of the preschool consultation and the most important activity of the preschool consultation for the respondent; there is also a link between this and an appointment on the map; and finally, the cost judgment of SPC strongly influences its use. Conclusion: In order to raise this activity, the revitalization of preschool consultation activities in the Tshitenge health area, the reinforcement of the parents’ awareness on the use of preschool counseling from 0 to 59 months, and the revival of visits to homes for children whose mothers drop out of preschool counseling sufficient are a basis.
A CATT Negative Result after Treatment for Human African Trypanosomiasis Is No Indication for Cure
Veerle Lejon ,Dieudonné Mumba Ngoyi,Marleen Boelaert,Philippe Büscher
PLOS Neglected Tropical Diseases , 2010, DOI: 10.1371/journal.pntd.0000590
Abstract: Background Cure after treatment for human African trypanosomiasis (HAT) is assessed by examination of the cerebrospinal fluid every 6 months, for a total period of 2 years. So far, no markers for cure or treatment failure have been identified in blood. Trypanosome-specific antibodies are detectable in blood by the Card Agglutination Test for Trypanosomiasis (CATT). We studied the value of a normalising, negative post-treatment CATT result in treated Trypanosoma brucei (T.b.) gambiense sleeping sickness patients as a marker of cure. Methodology/Principal Findings The CATT/T.b. gambiense was performed on serum of a cohort of 360 T.b. gambiense patients, consisting of 242 primary and 118 retreatment cases. The CATT results during 2 years of post-treatment follow-up were studied in function of cure or treatment failure. At inclusion, sensitivity of CATT was 98% (234/238) in primary cases and only 78% (91/117) in retreatment cases. After treatment, the CATT titre decreased both in cured patients and in patients experiencing treatment failure. Conclusions/Significance Though CATT is a good test to detect HAT in primary cases, a normalising or negative CATT result after treatment for HAT does not indicate cure, therefore CATT cannot be used to monitor treatment outcome.
Green’s Function Approach to the Bose-Hubbard Model  [PDF]
Matthias Ohliger, Axel Pelster
World Journal of Condensed Matter Physics (WJCMP) , 2013, DOI: 10.4236/wjcmp.2013.32020

We use a diagrammatic hopping expansion to calculate finite-temperature Green functions of the Bose-Hubbard model which describes bosons in an optical lattice. This technique allows for a summation of subsets of diagrams, so the divergence of the Green function leads to non-perturbative results for the boundary between the superfluid and the Mott phase for finite temperatures. Whereas the first-order calculation reproduces the seminal mean-field result, the second order goes beyond and shifts the phase boundary in the immediate vicinity of the critical parameters determined by high-precision Monte-Carlo simulations of the Bose-Hubbard model. In addition, our Greens function approach allows for calculating the excitation spectrum both for zero and finite temperature and for determining the effective masses of particles and holes.

In-Situ Hydroelectrothermal Deposition of Silicate Layers on Stainless Steel Surfaces  [PDF]
Jaybalan Tamahrajah, Axel Brehm
Advances in Materials Physics and Chemistry (AMPC) , 2015, DOI: 10.4236/ampc.2015.59038
Abstract: The deposition of zeolites on solid support materials is possible by means of electrochemical methods, impregnation processes, as well as in-situ syntheses. Electrochemical deposition of zeolites has been reported as well, however with readily synthesized zeolite structures. Adhesive deposition of zeolites on stainless steel (S316) has been reported. This report investigates the feasibility of the deposition of silicates by in-situ hydroelectrothermal means. The investigation was done in aqueous solutions of pH = 7 to 13 at different temperatures (25°C to 70°C) by linear sweep method. Deposition was done at a saturated H2 atmosphere to ensure prior deposition of thin iron oxide film on the surface and formation of Fe-O-Si-linkages. This was proven by Raman measurement of the samples. Further linear sweep experiments in the presence of silica show monodentate and bidentate Fe-O-Si linkages on the surface, proven by IR-measurements. Presence of dissolved silica was done by UV-Vis with the molybdate yellow method. The best results are achieved at 70°C at pH 13 and ﹣4 mV (vs Ag/AgCl) or 200 mV (vs SHE). Discontinuous homogeneous layers are found on the stainless steel surface observed by SEM, EDX measurements and electrochemical measurements. Layer discontinuties are caused due to low silica concentration at equilibrium hydrothermal conditions, especially in the absence of silicic acid. All results shown are for the best results achieved except for linear sweep measurements and solubility constants of dissolved silica.
Nuclear Power and Radioactive Contamination  [PDF]
Nils-Axel M?rner
Journal of Environmental Protection (JEP) , 2014, DOI: 10.4236/jep.2014.53021

Nuclear power was designed to produce electric power. Each part of the chain from uranium mining to handling of the waste is linked to serious contamination risks, however. Uranium mining is generally linked to local to regional contamination. The fuel production also produces depleted uranium at a ratio of 1:7. The reactors are operating under danger of accidents. Numerous minor accidents and endless temporary shut-downs are occasionally mixed with disastrous accidents. The Chernobyl (1986) and Fukushima (2011) accidents are notorious. The radioactive contamination from those accidents is still incomprehensible and will keep serious destructions of the environment for centuries to come. The handling of the high-level nuclear waste remains unsolved. Methods proposed in Sweden, Finland and France seem likely to lead to disastrous radioactive contaminations in the future. The only way out of this dilemma seems to be a disposal where the waste, though effectively sealed-off in the bedrock, remains accessible and controllable. At present, the “cost & benefit” balance seems strongly tilted over to the “far too costly side”, however.

An M > 6 Earthquake ~750 BC in SE Sweden  [PDF]
Nils-Axel M?rner
Open Journal of Earthquake Research (OJER) , 2014, DOI: 10.4236/ojer.2014.32008

At about 780-750 BC, a major earthquake struck southeast Sweden. At Brantetrask, the bedrock of quartzite was heavily fractured into big, flat blocks. Local people turned the site into a quarry for flat blocks to be placed around the Late Bronze Age graves at Brantevik, the big flat blocks of the sarcophagus, and two 5 tons monoliths transported 30 km to the SSW and erected as the bow and stern stones in the huge ship monument of Ales Stones. Rock carvings from the Bronze Age at Jarrestad became traversed by numerous fractures. Similar rock carving fracturing was observed at six other sites within a radius of 5 km from Brantetrask. In the shore cliff at Ales Stones a seismite was recorded and dated at 780-750 BC. At Glimme hallar, 4 km WSW of Brantevik, the bedrock shows signs of young tectonization. At Lillehem, 40 km to the NNW of Brantetrask, seismically disturbed beds were recorded and dated at the Late Holocene. The seismic event is concluded to have occurred around 780-750 cal.yrs BC and to have had a magnitude in the order of 6.3 to 6.8 and an intensity of about IX on the IES scale.

The Flooding of Ur in Mesopotamia in New Perspectives  [PDF]
Nils-Axel M?rner
Archaeological Discovery (AD) , 2015, DOI: 10.4236/ad.2015.31003
Abstract: At around 5000 years BP sea level peaked in the Persian Gulf region at a level of +0.3 m as now determined in Qatar. This coincides with the famous flooding of the ancient city of Ur, originally interpreted as due to local changes in the fluvial system. We can now propose that, in fact, it was the sea level rise that triggered the fluvial reorganization and rise in ground water level that ultimately led to “the flooding of Ur”.
Glacial Isostasy: Regional—Not Global  [PDF]
Nils-Axel M?rner
International Journal of Geosciences (IJG) , 2015, DOI: 10.4236/ijg.2015.66045
Abstract: The load of the continental ice caps of the Ice Ages deformed the bedrock, and when the ice melted in postglacial time, land rose. This process is known as glacial isostasy. The deformations are compensated either regionally or globally. Fennoscandian data indicate a regional compensation. Global sea level data support a regional, not global, compensation. Subtracting GIA corrections from satellite altimetry records brings—for the first time—different sea level indications into harmony of a present mean global sea level rise of 0.0 to 1.0 mm/yr.
Global Fluoroquinolone Resistance Epidemiology and Implictions for Clinical Use
Axel Dalhoff
Interdisciplinary Perspectives on Infectious Diseases , 2012, DOI: 10.1155/2012/976273
Abstract: This paper on the fluoroquinolone resistance epidemiology stratifies the data according to the different prescription patterns by either primary or tertiary caregivers and by indication. Global surveillance studies demonstrate that fluoroquinolone resistance rates increased in the past years in almost all bacterial species except S. pneumoniae and H. influenzae, causing community-acquired respiratory tract infections. However, 10 to 30% of these isolates harbored first-step mutations conferring low level fluoroquinolone resistance. Fluoroquinolone resistance increased in Enterobacteriaceae causing community acquired or healthcare associated urinary tract infections and intraabdominal infections, exceeding 50% in some parts of the world, particularly in Asia. One to two-thirds of Enterobacteriaceae producing extended spectrum -lactamases were fluoroquinolone resistant too. Furthermore, fluoroquinolones select for methicillin resistance in Staphylococci. Neisseria gonorrhoeae acquired fluoroquinolone resistance rapidly; actual resistance rates are highly variable and can be as high as almost 100%, particularly in Asia, whereas resistance rates in Europe and North America range from <10% in rural areas to >30% in established sexual networks. In general, the continued increase in fluoroquinolone resistance affects patient management and necessitates changes in some guidelines, for example, treatment of urinary tract, intra-abdominal, skin and skin structure infections, and traveller’s diarrhea, or even precludes the use in indications like sexually transmitted diseases and enteric fever. 1. Introduction Nalidixic acid—a byproduct of chloroquine synthesis—was marketed during the 1960s for oral treatment of urinary tract infections and is still available by prescription. Several quinolones were invented since then, including flumequine bearing a fluorine atom at position C-6, which was active against nalidixic acid resistant Enterobacteriaceae. However, development of newer fluoroquinolones did not progress significantly till it was demonstrated that substitutions at the C-6 and C-7 positions improved antibacterial activity and pharmacological properties [1]. Since then, fluoroquinolones have become established for treatment of urinary, respiratory, gastrointestinal, urogenital, intra-abdominal, and skin/skin structure infections in outpatients and hospitalised patients. Despite millions of prescriptions in the first two decades of their use, the emergence of quinolone resistance during treatment was uncommon except in Staphylococcus aureus particularly in
On the Importance of Being Ernst Mayr
Axel Meyer
PLOS Biology , 2012, DOI: 10.1371/journal.pbio.0030152

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