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Acute Thoracic Syndrome in Sickle Cell Children at the Pediatrics Department of Donka National Hospital

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Open Journal of Pediatrics 2020年第4期10卷 688-694页

作者： M. M. Diop A. barry M. l. Diallo E. Camara I. K. barry M. A. Doukoure M. C. barry S. B. Diallo N. V. Gateu Tadjom H. Dia M. P. Diallo Departement of Pediatric Donka National Hospital Conakry Guinea University Gamal Abdel Nasser of Conakry Conakry Guinea Pediatric Emergency Department Donka National Hospital Conakry Guinea Ignace Deen Department of Pediatrics Conakry Guinea

Introduction: Acute thoracic syndrome is the appearance of a new pulmonary infiltrate on radiology associated with fever, desaturation or respiratory signs. It is the second leading cause of hospitalization and the first cause of death in sickle cell patients. It is an acute pulmonary complication whose pathophysiological mechanisms are still poorly understood. This study aims to study the epidemiological, clinical, therapeutic and evolutionary aspects of Acute Chest Syndrome in children at the Pediatrics Department of Donka National Hospital. Method: This is a prospective study of descriptive type for a period of 6 months from February 19 to August 19, 2019 on patients with sickle cell disease who developed an ATS in the pediatrics department of Donka National Hospital. Epidemiological, clinical, therapeutic and evolutionary data were studied and proportionate data were calculated. Results: The frequency of ATS was 39%. The mean age of our patients was 9.83 years with the extremes of 4 and 16 years. The age group from 6 to 10 years with a frequency of 66.7% was the most affected. Fever was the main clinical manifestation, followed by hepatomele="font-family:Verdana;">galy. All our patients were homozygous SS and

关键词： Sickle Cell Disease Acute Thoracic Syndrome Pediatrics Donka

Microgeographic Variation and Inter-Riffle Migration of <i>Rhinichthys atratulus</i>(Pisces: Cyprinidae) in a Small Connecticut Stream, United States

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Open Journal of Ecology 2020年第7期10卷 460-481页

作者： Sage J. loomis Kayla Anatone laura Bither Sarah J. Kang Nola Neri David Machado Michelle l. Kraczkowski barry Chernoff College of the Environment Wesleyan University Middletown USA Department of Biology Wesleyan University Middletown USA Department of Molecular Biology and Biochemistry Wesleyan University Middletown USA Department of Biology University of Saint Joseph West Hartford USA Department of Earth & Environmental Sciences Wesleyan University Middletown USA

We examined the genetic diversity on a microgeographic scale of Rhinichthys atratulus (Eastern Blacknose Dace) in Allyn Brook, a small tributary in the upper Coginchaug River drainage in Connecticut. By looking at gene flow on a microgeographic scale among populations that had no physical barriers to migration, we tested the null hypothesis that the populations should be homogeneous. We resolved seven polymorphic microsatellite loci and one mitochondrial gene, nd2, in three adjacent populations (llyn Brook and compared these populations to the two closest populations (>5 km) in the Coginchaug River. A dam from the 1920’s in lower Allyn Brook has isolated Allyn-Brook populations from Coginchaug-River populations. Allyn Brook was selected because there are only three riffle habitats in the brook and, therefore, there can be no immigration from upstream populations. Each population has private (i.e., unique) alleles and haplotypes, and there are significant genetic differences between all sites. The Allyn Brook populations are almost as different from one another as they are from the distant populations in the Coginchaug River from which they have been isolated for more than 80 years. These results point to in situ evolution and little migration or gene flow among populations on a microgeographic scale. This raises interesting questions for conservation of genetic diversity of stream fishes.

关键词： Migration Microgeographic Differentiation Population Ecology Gene Flow Rhinichthys atratulus

Nephropathy in dietary hyperoxaluria:A potentially preventable acute or chronic kidney disease

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World Journal of Nephrology 2014年第4期3卷 122-142页

作者： Robert H Glew Yijuan Sun Bruce l Horowitz Konstantin N Konstantinov Marc barry Joanna R Fair larry Massie Antonios H Tzamaloukas Department of Surgery University of New Mexico School of Medicine Renal Section Raymond G Murphy Veterans Affairs (VA) Medical Center and Department of MedicineUniversity of New Mexico School of Medicine Division of Nephrology Department of MedicineUniversity of New Mexico School of Medicine Rheumatology Section Raymond G Murphy VA Medical Center and Department of MedicineUniversity of New Mexico School of Medicine Department of Pathology University of New Mexico School of Medicine Radiology Service Raymond G Murphy VA Medical Center and Department of RadiologyUniversity of New Mexico School of Medicine Pathology Section Raymond G Murphy VA Medical Center and Department of PathologyUniversity of New Mexico School of Medicine

Hyperoxaluria can cause not only nephrolithiasis and nephrocalcinosis,but also renal parenchymal disease histologically characterized by deposition of calcium oxalate crystals throughout the renal parenchyma,profound tubular damage and interstitial inflammation and *** nephropathy presents clinically as acute or chronic renal failure that may progress to endstage renal disease(ESRD).This sequence of events,well recognized in the past in primary and enteric hyperoxalurias,has also been documented in a few cases of dietary *** of oxalate intake in patients with chronic dietary hyperoxaluria who developed chronic kidney disease or ESRD were comparable to the reported average oxalate content of the diets of certain populations worldwide,thus raising the question whether dietary hyperoxaluria is a primary cause of ESRD in these *** addressing this question have the potential of improving population health and should be undertaken,alongside ongoing studies which are yielding fresh insights into the mechanisms of intestinal absorption and renal excretion of oxalate,and into the mechanisms of development of oxalate-induced renal parenchymal *** preventive and therapeutic strategies for treating all types of hyperoxaluria are expected to develop from these studies.

关键词： Dietary hyperoxaluria Chronic oxalatenephropathy Acute oxalate nephropathy Acute tubular necrosis Interstitial nephritis Nephrocalcinosis Calcium oxalate nephrolithiasis Oxalate transporters Inflammasomes

Analysis of Cropping Practices on Two Irrigated Perimeters of the Volta Blanche Basin with the Use of Shallow Groundwater

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Journal of Water Resource and Protection 2020年第11期12卷 975-984页

作者： Angelbert Chabi Biaou Chaim Vivien Doto Dial Niang Boubacar barry Institut International d’Ingénierie de l’Eau et de l’Environnement Ouagadougou Burkina Faso International Water Management Institute Colombo Sri Lanka

This study aims to analyze the development of small-scale irrigation using shallow groundwater in Nahouri province (south-central Burkina Faso). The methodological approach adopted was essentially based firstly on semi-structured surveys with producers who have adopted sump technology and the monitoring of groundwater level using the installed piezometers and secondly on geophysical prospection. Results obtained show that market gardening is mainly a family activity practiced on plots of 0.20 ha with a predominance of pepper cultivation occupying about 75% of cultivated areas. It was also highlighted that this agricultural activity faces several constraints that delay its development. These include: lack of water, land insecurity, small and fragmented farms and difficulty in selling products when they are put on local markets at the very same time as significant price drops. This problem is accentuated by the perishable nature of these market garden products. Despite these limiting factors, there is some satisfaction considering the income earned by farmers, most of whom are able to meet their primary needs. This work made it possible to conclude that even in zones which are not sedimentary formations, it is possible to mobilize groundwater, at a reasonable depth for agricultural purposes, without much effort to practice additional irrigation, knowing that evaporation carries harm to the use of dams.

关键词： Small Irrigation Shallow Groundwater Small Sumps Gardening Burkina Faso

Agroclimatological Characteristics of Rainy Seasons in Southwestern Burkina Faso during the 1970-2013 Period

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Atmospheric and Climate Sciences 2022年第2期12卷 330-357页

作者： Boubacar Ibrahim Moussa Waongo Moussa Sidibe Safietou Sanfo Boubacar barry Département de Géologie Faculté des Sciences et Techniques Université Abdou Moumouni de Niamey Niamey Niger Centre Régional AGRHYMET Niamey Niger Competence Center West African Science Service Center on Climate Change and Adapted Land Use (WASCAL) Ouagadou-gou Burkina Faso laboratoire de Developpement Agricole et Transformation de l’Agriculture (DATA) Université Thomas Sankara Ouagadougou Burkina Faso

The different drought phases observed during the 1970-2010 period have underlined important weaknesses of West African agricultural systems. The droughts resulted in important decreases in crop production, triggering a significant deficit in food availability. Many studies have identified changes in rain events seasonal patterns as the key drivers of agricultural production failure during these drought phases. In this study, seven agriculturally-relevant intra-seasonal rainfall characteristics (i.e., annual rainfall amount, onset and cessation of the rainy season, dry spells, extreme rain events, hot spells, and strong winds) and associated constraints to crop growth are described for the main cereals (maize, millet, and sorghum) in southwestern Burkina Faso. These characteristics are calculated or determined using daily climate data from a local network of 16 weather stations spanning the 1970-2013 period. A computation of the intensity and the occurrence of these phenomena during the rainy seasons helped to draw the rainy seasons’ nomenclature. Findings suggest that the rainy seasons during the drought phases are characterized by low annual rainfall amount, late onset, early cessation and more frequent long dry spells (>7 days). Furthermore, the long dry spells mostly occurred during the most sensitive phases of crop development: germination at the beginning of the rainy season and flowering at the end of the rainy season. Also, the intensity and the probability of occurrence of the other extreme events (hot spells and strong winds) during rainy seasons are very high in the establishment phase. Thus, adaptation strategies to mitigate these unfavorable climate conditions include a selection of short-cycle crop varieties combined with supplementary irrigation systems during long dry spells.

关键词： Climate Variability Rainy Season Dry Spell Hot Spell Burkina Faso

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粉末冶金制造Nb3Sn复合超导体

稀有金属材料与工程 1981年第1期 33-41+76-77页

作者： RüdigerBorman barry l.Mordike 黄金昌格庭根大学金属物理研究所克劳斯塔尔技术大学材料学和材料技术研究所西德

提要:本文提出了粉末冶金制造Nb3Sn复合材料的三种不同途径:1.将通过挤压和连续拉伸而制得的CuNb多芯导体电镀涂锡,并在护散退火时形成Nb3Sn;2.将具有不同含锡量的青铜粉末与铌粉一起烧结,在钢套內成形,最后进行退火处理;3.为了得到高... 详细信息

提要:本文提出了粉末冶金制造Nb3Sn复合材料的三种不同途径:1.将通过挤压和连续拉伸而制得的CuNb多芯导体电镀涂锡,并在护散退火时形成Nb3Sn;2.将具有不同含锡量的青铜粉末与铌粉一起烧结,在钢套內成形,最后进行退火处理;3.为了得到高的含铌量,将海绵铌用青铜浸渍,然后加工。附加锡层的增厚和样品的退火导致形成三維Nb3Sn网络。作者根据组织研究和超导性能测试的结果讨论了粉末冶金制造高载流能力的Nb3Sn多芯导体之各种方法的适用性。

关键词：超导体载流能力临界电流密度 Nb3Sn 粉末冶金粉冶粉末工艺学

地下水对浅滩沉积物搬运及海滩剖面变化影响的模拟分析

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海洋地质动态 2003年第5期19卷 10-14页

作者： li l barry DA 张效龙胡光海

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Applied Management Science 2nd ed.

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2002年

作者： lawrence, John A., Jr./ Pasternack, barry Alan

ISBN: (纸本)9780471391906

在线阅读本书Emphasizes building the most appropriate model possible from the available data. Major focus is on analysis and communication of results to management. Teaches readers how to conduct a management science study, analyze different situations, break down the steps of problem–solving, write a business report, and effectively communicate study results to management. A supporting CD–ROM is packaged with every book to include three complete additional chapters, additional cases and problems for every chapter, coverage of key algorithms and derivations, a review of statistics, the complete WINQSB package developed by Yih–long Chang, and Excel files for every chapter. Computer Integrated Approach: Use of Excel, WinQSB, and lINDO for windows integrated throughout text for use in solving models.

关键词： Management

来源：畅想之星图书光盘版（南... 评论

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最优化方法在分子识别中的应用(英文)

应用泛函分析学报 2011年第3期13卷 303-309页

作者： Zhifeng Kuang Rajesh R.Naik barry l.Farmer 美国空军研究实验室材料与制造部美国宇航技术公司

分子识别是指两个或多个分子靠非共价键专一地结合在一起.分子识别在物质的形成,细胞信号的传递,基因信息的表达和药物的设计等方面起重要的作用.我们首先对数学和计算方法在分子识别上的应用作了回顾,并从量子力学,经典分子力学和热力... 详细信息

分子识别是指两个或多个分子靠非共价键专一地结合在一起.分子识别在物质的形成,细胞信号的传递,基因信息的表达和药物的设计等方面起重要的作用.我们首先对数学和计算方法在分子识别上的应用作了回顾,并从量子力学,经典分子力学和热力学上解释分子识别可转换成一类最优化问题.其次,我们指出了解决这类最优化问题的困难.最后,我们报告了在预报配体与蛋白质识别上所获得的一类新的选择方法.这类方法可将预报的成功率从63%提高到90%.

关键词：最优化方法分子识别密度泛函理论自动对接分簇聚类法分段聚类法

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