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Intestinal Parasitosis in Children among Internally Displaced Persons in the Hauts-Bassins Region of Burkina Faso

Open Journal of Pediatrics 2024年第5期14卷 814-822页

作者： Barro Makoura Yerbanga W Isidore Yonaba Caroline Sawadogo Safiatou Hadry roger Sibi Matotou Nakanabo-Diallo Seydou Millogo Anselme Naon Sarah Sanogo Bintou Bamba Sanata Department of Pediatrics Sour Sanou University Hospital Bobo-Dioulasso Burkina Faso Department of Laboratory Sour Sanou University Hospital Bobo-Dioulasso Burkina Faso Department of Pediatrics Yalgado Ouedraogo University Hospital Ouagadougou Burkina Faso Department of Biomedical Sciences MURAZ Center Bobo-Dioulasso Burkina Faso

Introduction: The setting up of camps for internally displaced persons in Burkina Faso as a result of terrorism creates favorable conditions for the emergence of digestive parasitosis in these displaced populations. The objective of this study was to evaluate the prevalence of digestive parasitosis in children of this population in the Hauts-Bassins region. Material and methods: This was a prospective cross-sectional study from November to December 2020, in which stool samples were collected from internally displaced children from the Sinfra reception site in Banzon and from Poya in Karangasso Vigué. The stool samples were stored at room temperature, protected from dust and insects, in a cooler and then sent to the laboratory of the CHUSS in Bobo-Dioulasso where the parasitological analyses were performed. Results: The mean age was 5.8 ± 2.4 years. The most represented age group was 5 to 10 years (75.31%). The sex ratio is 1.61. The overall prevalence of intestinal parasite infection was 53.09%. The prevalence was statistically higher among those who consumed well water than those consuming tap water (p = 0.01). Monoparasitism by protozoa and helminths represented 74.42% and 6.68% respectively. The polyparasitism rate was 9.31%. The species identified in monoparasite patients were protozoa with Entamoeba coli (37.21%), Giardia lamblia (25.58%), Endolimax nanus (6.98%) and Entamoeba histolytica/dispar (4.65%). Biparasitism was identified with combinations, such as E. coli + E. histolytica/dispar (11.63%). Conclusion: There is a high prevalence of digestive parasitosis among IDPs in the Sinfra and Poya reception site. Educational sessions on hand washing before meals, use of drinking water, etc. should emphasize preventive measures in these IDP camps.

关键词： Digestive Parasitosis Internally Displaced Children Hauts-Bassins Burkina Faso

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Factors Associated with Closely Spaced Pregnancies at the Departmental Hospital Centre of Zou-Collines (Benin) in 2022

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Open Journal of Obstetrics and Gynecology 2024年第1期14卷 89-101页

作者： Klikpezo roger Hounkponou Nouéssewa Fanny Maryline Atade Sèdjro Raoul Agbegbanou Eudoxie Ahouingnan Yeyinou Salifou Badaryatou Dettin Eric Obossou Achilles Imorou Sidi Salifou Kabibou Faculty of Medicine University of Parakou Parakou Bénin Institute of Training in Nursing and Obstetrics (IFSIO) Parakou Bénin

Introduction: Birth spacing to prevent closely-spaced pregnancies, which are a source of maternal and neonatal morbidity and mortality, is not always respected by our women, as recommended by the World Health Organization (WHO). The objective was to study the factors associated with closely-spaced pregnancies among women followed at the Departmental Hospital Center du Zou et du Colline (DHC/Z-C) in 2022. Study Method: This was a descriptive, analytical cross-sectional study with prospective data collection from 20 May to 30 June 2022. Results: At the end of the study, 83 of the 117 women surveyed had close pregnancies, a frequency of 70.94%. They had an average age of 27.0 ± 6.3 years and were of Fon ethnicity and related in 91.57% of cases. The majority were married (96.60%). The factors significantly associated with these closely spaced pregnancies were age between 25 and 30 years, household occupation, age at first birth, age at marriage, women’s perception of contraceptive method (CM), women’s knowledge of the existence of a center providing family planning services and non-use of MC. Conclusion: Close pregnancies are still very common in the commune of Abomey. It is therefore important to increase the use of contraceptive methods in this part of the country.

关键词： Close Pregnancy Associated Factors DHC/Z-C

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Surgical Treatment of Osteonecrosis of the Femoral Head Using Minimally Invasive Surgical Drilling and Cancellous Grafting at Brazzaville University Hospital

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Open Journal of Orthopedics 2024年第2期14卷 122-132页

作者： Kevin Parfait Bienvenu Bouhelo-Pam Marius Monka Arnauld Sledje Wilfrid Bilongo Bouyou Regis Perry Massouama Paul Yèlai Ikounga roger Bertrand Sah Mbou Armand Moyikoua Department of Orthopaedic surgery and Traumatology University Hospital of Brazzaville Brazzaville Republic of the Congo Faculty of Health Sciences Marien N’GOUABI University Brazzaville Republic of the Congo

Introduction: Osteonecrosis of the femoral head (ONTF) is a debilitating condition. Several treatments have been proposed with controversial results. The aim of our study was to evaluate treatment by surgical drilling coupled with in situ cancellous grafting. Materials and methods: Our study was a case-control study conducted at Brazzaville University Hospital from 1st January 2018 to 31 December 2023. It compared two groups of patients with ONTF: non-operated (13 patients, 20 hips) and operated (22 patients, 35 hips). We used the visual digital scale (VDS) for pain assessment, the Merle D’Aubigne-Postel (MDP) scoring system for clinical and functional assessment, and the evolution of necrosis. Results: The group of non-operated patients had a mean age of 35.69 ± 3.4 years, no improvement in pain with an EVN above seven at the last recoil and a mean global MDP score falling from 12.7 before offloading to 10.13 at one year. The group of patients operated on had a mean age of 37.86 ± 7.02 years, a significant reduction in pain (p = 0.00004) and a significantly increased MDP score (p = 0.0034). A comparison of the two groups of patients showed significant stabilization of the necrotic lesions in the operated patients (p = 0.00067), with better satisfaction in the same group. Conclusion: Surgical drilling combined with grafting in the treatment of early-stage ONTF has improved progress in our series. The technique is reproducible and less invasive. It has made it possible to delay unfavorable progression and, consequently, hip replacement surgery.

关键词： Hip Osteonecrosis of the Femoral Head Conservative Treatment Surgical Drilling Bone Grafting

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Influence of Waveguide Properties on Wave Prototypes Likely to Accompany the Dynamics of Four-Wave Mixing in Optical Fibers

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Journal of Applied Mathematics and Physics 2024年第7期12卷 2601-2633页

作者： Jean roger Bogning Marcelle Nina Zambo Abou’ou Christian Regis Ngouo Tchinda Mathurin Fomekong Oriel Loh Ndichia Stallone Mezezem Songna François Béceau Pelap Department of Physics Higher Teacher Training College University of Bamenda Bamenda Cameroon African Optical Fiber Family Bafoussam Cameroon Department of Physics Faculty of Science University of Bamenda Bamenda Cameroon Department of Physics Faculty of Science University of Yaound I Yaound Cameroon Africain en Technologie de lInformation et de la Tlcommunication The University of Yaound I Yaound Cameroon Unit de Recherche de Mcanique et de Modlisation des Systmes Physiques (UR-2MSP) Facult des Sciences Universit de Dschang Dschang Cameroun

In this article, we study the impacts of nonlinearity and dispersion on signals likely to propagate in the context of the dynamics of four-wave mixing. Thus, we use an indirect resolution technique based on the use of the iB-function to first decouple the nonlinear partial differential equations that govern the propagation dynamics in this case, and subsequently solve them to propose some prototype solutions. These analytical solutions have been obtained;we check the impact of nonlinearity and dispersion. The interest of this work lies not only in the resolution of the partial differential equations that govern the dynamics of wave propagation in this case since these equations not at all easy to integrate analytically and their analytical solutions are very rare, in other words, we propose analytically the solutions of the nonlinear coupled partial differential equations which govern the dynamics of four-wave mixing in optical fibers. Beyond the physical interest of this work, there is also an appreciable mathematical interest.

关键词： Optical Fiber Four Waves Mixing Implicit Bogning Function Coupled Nonlinear Partial Differential Equations Nonlinear Coefficient Dispersive Coefficient Waveguide Properties

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The Siberian Traps and the End-Permian mass extinction:a critical review

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Chinese Science Bulletin 2009年第1期54卷 20-37页

作者： Andy saunders Marc REICHOW Department of Geological Sciences University of Leicester

The association between the Siberian Traps,the largest continental flood basalt province,and the largest-known mass extinction event at the end of the Permian period,has been strengthened by re-cently-published high-precision 40Ar/39Ar dates from widespread localities across the Siberian prov-ince[1]. We argue that the impact of the volcanism was amplified by the prevailing late Permian envi-ronmental conditions―in particular,the hothouse climate,with sluggish oceanic circulation,that was leading to widespread oceanic anoxia. Volcanism released large masses of sulphate aerosols and carbon dioxide,the former triggering short-duration volcanic winters,the latter leading to long-term warming. Whilst the mass of CO2 released from individual eruptions was small compared with the total mass of carbon in the atmosphere-ocean system,the long ‘mean lifetime’ of atmospheric CO2,com-pared with the eruption flux and duration,meant that significant accumulation could occur over periods of 105 years. Compromise of the carbon sequestration systems (by curtailment of photosynthesis,de-struction of biomass,and warming and acidification of the oceans) probably led to rapid atmospheric CO2 build-up,warming,and shallow-water anoxia,leading ultimately to mass extinction.

关键词：西伯利亚二叠纪温室气候海洋缺氧 CO2 SO2

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不同施用条件下轨顶摩擦调节剂的减摩性能研究

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摩擦学学报 2024年

作者：吴柄男李佳辛宋辛辛师陆冰张沭玥丁昊昊王文健刘启跃 Lewis roger 周仲荣西南交通大学轨道交通运载系统全国重点实验室摩擦学研究所郑州机械研究所有限公司谢菲尔德大学机械工程系

本文中研究了水基、油基和脂基轨顶摩擦调节剂在不同轮轨表面粗糙度和施加量下的减摩性能，研究结果表明：(1)合理地应用轨顶摩擦调节剂可使轮轨界面从干摩擦转变为混合润滑状态，产生中等水平的黏着系数和正摩擦特性；(2)增加轮轨表面... 详细信息

本文中研究了水基、油基和脂基轨顶摩擦调节剂在不同轮轨表面粗糙度和施加量下的减摩性能，研究结果表明：(1)合理地应用轨顶摩擦调节剂可使轮轨界面从干摩擦转变为混合润滑状态，产生中等水平的黏着系数和正摩擦特性；(2)增加轮轨表面粗糙度或减小材料的施加量可以增加金属表面微凸体承担的法向载荷进而避免轮轨低黏着现象，低抗剪切强度的油(脂)基材料可以增强轨顶摩擦调节剂的润滑性能；(3)轨顶摩擦调节剂的安全施加量从高到低依次是水基、油基和脂基轨顶摩擦调节剂，应用轨顶摩擦调节剂产生的黏着系数越高，其在轮轨界面间的保持能力越差；(4)应用轨顶摩擦调节剂可以大幅降低轮轨磨损，且表面粗糙度未发生明显变化。轨顶摩擦调节剂的减摩性能从高到低依次是冬季水基、油基、混合水基、脂基和夏季水基轨顶摩擦调节剂，机械混合夏季和冬季水基轨顶摩擦调节剂不会恶化混合后材料的减摩性能。

关键词：轨顶摩擦调节剂轮轨黏着轮轨磨损表面粗糙度施加量

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Long-Time Turbulence Model Deduced from the Navier-Stokes Equations

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Chinese Annals of Mathematics,Series B 2015年第5期36卷 883-894页

作者： roger LEWANDOWSKI IRMAR and Fluminance Team University of Rennes 1 and INRIA Campus Beaulieu

The author shows the existence of long-time averages to turbulent solutions of the Navier-Stokes equations and determines the equations satisfied by them, involving a Reynolds stress that is shown to be dissipative.

关键词： Navier-Stokes equations Weak solutions Turbulence modeling Reynolds stress

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缘系东方——从梦想起航到扎根中国的跨文化之旅

教育国际交流

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教育国际交流 2024年第5期 69-71页

作者：赵立平燕山大学环境与化学工程学院

作为一名从小对汉字和中国武术充满好奇与热爱的马达加斯加人,对中国古老文明的憧憬与对知识的渴望,成为了我追寻梦想的强大动力。这份向往在我心中不断生根发芽,最终引领我踏上了这片古老而充满活力的土地,开启了一段跨越文化与时空的... 详细信息

作为一名从小对汉字和中国武术充满好奇与热爱的马达加斯加人,对中国古老文明的憧憬与对知识的渴望,成为了我追寻梦想的强大动力。这份向往在我心中不断生根发芽,最终引领我踏上了这片古老而充满活力的土地,开启了一段跨越文化与时空的非凡旅程。在中国,我不仅在学术上取得了成就,还找到了归属感和幸福感。在中国的学习和生活期间,我经历了各种挑战,收获了珍贵的友谊,并组建了自己的家庭。这段经历不仅记录了我在梦想国度实现自我的旅程,也是一段我在跨文化背景下的成长故事。

关键词：成长故事跨文化背景中国武术文化之旅马达加斯加幸福感生根发芽归属感

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Evaluating Land Use and Emergency Management Plans for Natural Hazards as a Function of Good Governance:A Case Study from New Zealand

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International Journal of Disaster Risk Science 2015年第1期6卷 62-74页

作者： Wendy saunders Emily Grace James Beban David Johnston GNS Science School of Psychology Massey University Joint Centre of Disaster ResearchMassey University

Plan evaluation is of utmost importance as a function of good governance. It provides a means to improve the institutional basis for implementing land use controls, provides an important opportunity to improve future plans to reduce risk, and improves the vision for sustainable development and management. This article provides an overview of the methods and findings of a plan evaluation project undertaken in New Zealand. The project analyzed 99 operative plans, provided in-depth analysis of ten plans, and included a capability and capacity study of councils. This is the first time all operative plans in New Zealand have had their natural hazard provisions assessed in this manner. The information provides an important baseline for future policy improvements, and a basis for future research and policy directions. The project found that, while New Zealand land use plans appear to be improving over time, there are still opportunities for improvement. These include improving linkages between objectives, policies, and rules within land use plans; and strengthening the linkages between land use and emergency management plans. The largest challenge is the accessibility, understanding of, and updating of hazard information.

关键词： Emergency management plans Land use plans Natural hazards New Zealand Plan evaluation

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Avian succession along ecological gradients： Insight from species-poor and species-rich communities of Sylvia warblers

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Current Zoology 2011年第3期57卷 307-317页

作者： Alban GUILLAUMET roger PRODON EPHE CEFE-CNRS UMR 5175 1919 route de Mende 34293 Montpellier cedex 5 France Department of Wildlife Fisheries & Aquaculture Mail Stop 9690 Mississippi State University Mississippi MS 39762 USA

The mechanisms responsible for species replacement during ecological successions is a long-standing and open debate. In this study, we examined the distribution of the Sardinian warbler Sylvia melanocephala along two grassland-to-forest gradients, one in a high-diversity area （Albera-Aspres chain in Catalonia： eight Sylvia warbler species） and one in a low-diversity area （Mount Hymittos in Greece： four species）. In Catalonia, distribution models suggested that the apparent exclusion of S. melanocephala from the open and forest ends of the gradient may be explained entirely by the preference of S. melanocephala for mid-successional shrublands. However, a joint analysis of both data sets revealed that： 1） S. melanocephala was more evenly dis- tributed along the vegetation gradient in Greece, suggesting ecological release in the low-diversity area; and 2） a distribution model assuming interspecific competition （based on the distribution of Sylvia species showing a negative co-occurrence pattern with S. melanocephala） had a significantly higher predictive ability than a distribution model based on habitat variables alone. Our study supports the view that species turnover along ecological gradients generally results from a combination of intrinsic preferences and interspecific competition [Current Zoology 57 （3）： 307-317, 2011].

关键词： Avian succession Cross-validation Diffuse competition Ecological release GLM Habitat selection Nichewidening Species distribution model

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