检索结果-南通市图书馆

Health and sanitary status in 1970 of Tubu nomads dwelling in Northeastern Niger

Journal of Medical Colleges of PLA(China) 2014年第3期29卷 150-161页

作者： jean-franois Magnaval Christian Oosterbosch Michel Mandl MABN group Department of Medical Parasitology Faculty of Medicine-Purpan Toulouse France CNRS UMR 5288 Paul-Sabatier University Toulouse France Les Nouveaux Généralistes Liège Belgium Lieutenant-General (retired) Belgian Air Force Leefdaal Belgium Mission Anthropologique Belge au Niger

Background: The Tubu are nomadic people who live in remote parts of the central Sahara, primarily in the Tibesti massif(Chad), and in both Northeastern Niger and Southern Libya. All of these areas are close to become conflict zones. However, no data about the Tubu's health and sanitary status are currently available, which would be of major concern if humanitarian interventions would become ***: In 1970, the "Mission Anthropologique Belge au Niger"(MABN) investigated a Tubu tribe named Broaya that lived at Seguedine and Djado on the northeastern rim of the Tenere desert. One hundred fifty-one adult volunteers answered an oral questionnaire and underwent a medical examination, followed by the collection of blood thin films and samples of urine and stool. The environmental fauna of medical importance was also ***: Albeit 43 year-old, these results have not been previously published. The estimated age of death for fathers was approximately 56 years, and that for mothers was 60 years. On average, each married woman had had 4.7 children. The overall perinatal mortality rate was 232 ‰, the overall infant mortality rate was 153 ‰, and the overall child mortality rate was 99 ‰. The mean height was 164.1 cm and 157.4 cm, the mean weight was 50.1 kg and 47.9kg, and the mean blood pressure was 131/78 mm Hg and 127/75 mm Hg for males and females, respectively. The physical examination found 6 cases of blindness(4.0%). Five subjects presented with an elevated blood pressure(3.3%), and 5(3.3%) displayed an abnormal thoracic auscultation evocative of tuberculosis or of an acute lung infection. The abdominal examination and renal palpation found 5 large masses(3.3%), and 2 subjects had a palpable enlarged spleen(1.3%). The blood thin films were fixed in methanol and subsequently examined in Toulouse. The search for blood parasites was negative. The urine samples were centrifuged and then microscopically examined in the field. No blood-fluke eggs were found.

关键词： Saharan nomadic tribes Tubu people Health status Sahara Niger Djado Seguedine Mission anthropologique belge au niger

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Selection of rhizobial strains differing in their nodulation kinetics under low temperature in four temperate legume species

引用

Grassland Research 2023年第3期2卷 197-211页

作者： Emmanuelle D'Amours Annick Bertrand jean Cloutier françois-Philippe Chalifour Annie Claessens Solen Rocher marie Bipfubusa Chantal Giroux Chantal J.Beauchamp Agriculture and Agri-Food Canada Quebec Research and Development CentreQuebec CityQuebecCanada Département de phytologie Facultédes Sciences de l'Agriculture et de l'AlimentationUniversitéLavalQuébec CityQuebecCanada Centre de recherche sur les grains(CÉROM) Saint-Mathieu-de-BeloeilQuebecCanada

Background:Winter climate change including frequent freeze-thaw episodes and shallow snow cover will have major impacts on the spring regrowth of perennial ***-bloating perennial forage legume species including sainfoin,birdsfoot trefoil,red clover,and alsike clover have been bred for their adaptation to harsh winter *** parallel,the selection of cold-tolerant rhizobial strains could allow earlier symbiotic nitrogen(N)fixation to hasten spring regrowth of ***:To identify strains forming nodules rapidly and showing high N-fixing potential,60 rhizobial strains in association with four temperate legume species were evaluated over 11 weeks under spring soil temperatures for kinetics of nodule formation,nitrogenase activity,and host ***:Strains differed in their capacity to form efficient nodules on legume hosts over *** showing higher nitrogenase activity were arctic strain N10 with sainfoin and strain L2 with birdsfoot *** clovers,nitrogenase activity was similar for control and inoculated plants,likely due to formation of effective nodules in controls by endophyte rhizobia present in ***:Selection based on nodulation kinetics at low temperature,nitrogenase activity,and yield was effective to identify performant rhizobial strains for legume *** use of cold-tolerant strains could help mitigate winter climatic changes.

关键词： cold-tolerant rhizobia Lotus corniculatus low temperature Onobrychis viciifolia rhizobium symbiosis Trifolium hybridum Trifolium pratense

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

VASP在切应力诱导的内皮细胞骨架重排中的变化

引用

中国应用生理学杂志 2004年第4期20卷 313-317页

作者：魏蕾欧阳静萍李柯 Sylvaine Muller jean-franois Stoltz 武汉大学医学院病理生理教研室 LEMTA-UMR 7563 CNRS/INPL/UHP 54500 Vandoeuvre-lès-Nancy France

目的探讨不同强度的稳定层流切应力对内皮细胞骨架肌动蛋白相关蛋白VASP表达、磷酸化和分布影响规律及其机制。方法采用平行板流动腔模型,刺激培养HUVECs。免疫荧光双标显示层流下细胞中肌动蛋白重排与VASP分布变化之间的规律。RTPCR检... 详细信息

目的探讨不同强度的稳定层流切应力对内皮细胞骨架肌动蛋白相关蛋白VASP表达、磷酸化和分布影响规律及其机制。方法采用平行板流动腔模型,刺激培养HUVECs。免疫荧光双标显示层流下细胞中肌动蛋白重排与VASP分布变化之间的规律。RTPCR检测VASPmRNA表达;Westernblot监测VASP表达及磷酸化水平。结果10dyn/cm2剪切24h后,细胞延长、长轴重排、形成顺流场排列的粗大肌动蛋白纤维丝;VASP沿肌动蛋白纤维分布,在其末端汇聚成明显的点状;10dyn/cm2剪切1h诱导VASPmRNA表达增加;24h内VASP反复磷酸化、总表达量增加2h达高峰后恢复,8h后再次升高;cAMP抑制剂H89显著抑制切应力诱导VASP表达增加及磷酸化。结论切应力通过cAMP/cAK途径磷酸化VASP,发挥骨架调节蛋白作用,介导血液流动引起的内皮细胞骨架重组、形态改变。

关键词：切应力细胞骨架血管扩张刺激磷蛋白(VASP) 内皮细胞

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Belgium experience in disaster victim identification applied in handling terrorist attack at Brussels Airport 2016

引用

Forensic Sciences Research 2020年第3期5卷 223-231页

作者： francois Beauthier Wim Van de Voorde Philippe Lefevre jean-Pol Beauthier Medicolegal and Forensic Anthropology Unit Laboratory of AnatomyBiomechanics and OrganogenesisFaculty of MedicineUniversite libre de BruxellesBruxellesBelgium Forensic Biomedical Sciences Department of Imaging and PathologyUniversity of LeuvenBelgium

The Belgian disaster victim identification(DVI)team is involved in many investigations in our ***,this specialized team of the federal police oversees searching for and investigating criminally buried dead bodies,identification of unknown putrefied corpses,and *** Belgian DVI team also assists with the identification of victims of mass disasters(natural,accidental,and mass murders).In this article,we consider the contributions of different teams(forensic pathology,anthropology,and odontology,federal police,and crime scene investigation)both on the scene of the attack at the Brussels National Airport(Zaventem)and in the laboratory work(autopsies,sample studies).

关键词： Forensic sciences forensic pathology terrorist attack blast injury body fragments identification

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

甘氨酸在SiO_2表面的吸附及热缩合反应

引用

催化学报 2005年第5期26卷 393-398页

作者：孟明 Lorenzo Stievano jean-franois Lambert 天津大学化工学院催化科学与工程系天津300072 法国皮埃尔和玛丽居里大学表面反应性能实验室

考察了甘氨酸水溶液平衡浓度和pH值对其在SiO2 表面吸附行为的影响,采用DTG ,XRD和FT IR等手段对甘氨酸在SiO2 表面的吸附量及晶相结构等进行了表征.结果表明,甘氨酸在SiO2 上的吸附不符合Langmuir吸附模型,当甘氨酸水溶液平衡浓度小于0... 详细信息

考察了甘氨酸水溶液平衡浓度和pH值对其在SiO2 表面吸附行为的影响,采用DTG ,XRD和FT IR等手段对甘氨酸在SiO2 表面的吸附量及晶相结构等进行了表征.结果表明,甘氨酸在SiO2 上的吸附不符合Langmuir吸附模型,当甘氨酸水溶液平衡浓度小于0 0 73mol/L时,主要为特定位置吸附,此时SiO2 对甘氨酸的吸附源于其表面≡Si-O-基团与甘氨酸离子的-NH+3 端的相互作用;当平衡浓度大于0 0 73mol/L时,呈多层吸附,形成α和β两种晶型的甘氨酸.用TPD MS对甘氨酸的热缩合行为进行了考察,结合FT IR结果表明,产物为环状二聚体哌嗪二酮(DKP) ,没有检测到线式二聚体以及表面硅酯类物种形成.SiO2 对表面吸附的甘氨酸分子产生了诱导活化,使其热缩合温度与体相α甘氨酸相比降低了5 0℃左右.

关键词：甘氨酸二氧化硅吸附热缩合二酮哌嗪

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

A Potential Flow Based Flight Simulator for an Underwater Glider

引用

Journal of marine Science and Application 2013年第1期12卷 112-121页

作者： Surasak Phoemsapthawee Marc Le Boulluec jean-Marc Laurens fran ois Deniset International maritime College Kasetsart University-Si Racha Campus Si Racha 20230 Thailand Ifremer RDT/HOBP-70 Plouzané 29280 France Ensta-Bretagne 2 rue Fran ois VernyBrest cedex9 29806France IRENav Ecole NavaleLanveoc CC-600Brest cedex9 29240France

Underwater gliders are recent innovative types of autonomous underwater vehicles （AUVs） used in ocean exploration and observation. They adjust their buoyancy to dive and to return to the ocean surface. During the change of altitude, they use the hydrodynamic forces developed by their wings to move forward. Their flights are controlled by changing the position of their centers of gravity and their buoyancy to adjust their trim and heel angles. For better flight control, the understanding of the hydrodynamic behavior and the flight mechanics of the underwater glider is necessary. A 6-DOF motion simulator is coupled with an unsteady potential flow model for this purpose. In some specific cases, the numerical study demonstrates that an inappropriate stabilizer dimension can cause counter-steering behavior. The simulator can be used to improve the automatic flight control. It can also be used for the hydrodynamic design optimization of the devices.

关键词： underwater glider potential flow Newton-Euler equation autonomous underwater vehicles (AUVs) flight simulator

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Normalized Area Solar Cell and Potential Applications

引用

Journal of Applied Mathematics and Physics 2017年第5期5卷 1106-1112页

作者： Marcel Pasquinelli jean-Jacques Simon Judikael Le Rouzo fran?ois Flory Ludovic Escoubas Aix Marseille Université CNRS Université de Toulon IM2NP UMR 7334 Marseille France

Nowadays in laboratories and in industries, distribution of solar cells sizes could be very large, hence;for the first time it is rather difficult to compare photovoltaic parameters which are size dependent (current, serial resistance, shunt resistance...) and performances of these cells. Also, it will be useful for scale effect to extrapolate performances calculated on a unit size solar cell to commercial products, especially in the case of heterogeneous wafers used for the device.

关键词： Photovoltaic Solar Cell Efficiency Serial Resistance Shunt Resistance

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Physicochemical Characteristics of Some Cameroonian Pozzolans for Use in Sustainable Cement Like Materials

引用

Materials Sciences and Applications 2013年第1期4卷 14-21页

作者： Ndigui Billong Uphie Chinje Melo Daniel Njopwouo françois Louvet jean Pierre Bonnet Materials Analysis Laboratory YaoundéCameroon Physico-Chemistry of Mineral Materials Laboratory University of YaoundéIYaoundéCameroon Groupe d’Etude des Matériaux Hétérogènes Ecole Nationale Supérieure de Céramique IndustrielleLimogesFrance

In the present study, physico-chemical investigations have been carried out on the possibility of using Cameroonian volcanic or clay pozzolans as raw material for geopolymer or pozzolanic binder. The research had made some suggestive results and conclusions. Powders of less than 100 μm of five sampled pozzolans from volcanic or clay origins have been subjected to chemical and mineralogical analysis, BET specific surface, absolute density, granulometry and pozzolanic activity in solution tests. The results obtained showed that, geopolymers or pozzolanic binders can be produced from samples studied. The samples contain significant amounts of glassy or amorphous phase ready to dissolve in an alkaline solution. The high alkali content of volcanic pozzolans makes them more appropriate for geopolymer application. Clay pozzolans are the easier to grind in order to obtain the appropriate fineness and can be used for both geo- polymers and pozzolanic binders.

关键词： Pozzolan Characteristic Geopolymer Supplementary Cementing Material Cameroon

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Durability of Lightweight Concrete Using Oil Palm Shell as Aggregates

引用

Open Journal of Civil Engineering 2021年第1期11卷 1-13页

作者： Yasmine Binta Traore Adamah Messan Kinda Hannawi jean Gerard William Prince françois Tsobnang Université de Fada N’Gourma/Ecole Supérieure d’Ingénierie (ESI) Fada N’Gourma Burkina Faso Institut International d’Ingénierie de l’Eau et de l’Environnement (2iE) Laboratoire Eco-Matériaux et Habitats Durables (LEMHaD) Ouagadougou Burkina Faso Institut National des Sciences Appliquées de Rennes (INSA-Rennes) Laboratoire de Génie Civil et de Génie Mécanique (LGCGM) Rennes France Centre de Coopération International en Recherche Agronomique pour le Développement (CIRAD) Unité de recherche Biomass Wood Energy and Bioproducts (BioWooEB) Montpellier France

Oil Palm Shell (OPS) concrete can be used in different fields of construction. To determine more accurately the fields of application, it is important to know and understand the behaviour of OPS concrete over the long term and when it is in aggressive environments. This paper presents the results of studies conducted on the durability of OPS concrete. Water absorption capacity, electrical resistivity and apparent diffusion of chloride ions have been measured on different concrete samples. In addition, the behaviour of OPS concretes to carbonation was studied in an environment rich in carbon dioxide. Results show that OPS concrete has an absorptivity of 0.97 kg/m2·h1/2, an electrical resistivity of 64.37 Ω·m and an apparent diffusion coefficient of chloride ions of 3.84

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Hybrid Common Femoral Artery Surgical Revascularization Associated to Endovascular Femoropopliteal Recanalization in High-Risk (ASA 3 - 4) Patients: A Seven-Year Period Institutional Experience

引用

World Journal of Cardiovascular Diseases 2016年第2期6卷 31-43页

作者： Vlad-Adrian Alexandrescu jean-Luc Jacquemin Pierre-Arnaud Wuidar Khalid Azdad françois Triffaux Department of Vascular Surgery Princess Paola Hospital Marche-en-Famenne Belgium Department of Anesthesiology Princess Paola Hospital Marche-en-Famenne Belgium Department of Radiology Princess Paola Hospital Marche-en-Famenne Belgium

Objective: The present study was conceived to analyze the clinical benefit of hybrid interventions with surgical common femoral artery (CFA) reconstruction coupled to superficial femoral/popliteal endovascular recanalization for severe infrainguinal multilevel occlusive disease in high-risk ASA Class 3 - 4 patients. Material and Methods: From August 2008 until May 2015, a series of 143 hybrid infrainguinal interventions in 124 ASA Class 3 - 4 patients were performed in our department for Rutherford category 2 - 6 ischemic presentations. Patient demographics, specific risk factors, technical characteristics and patency results were retrospectively examined during a mean 36.8 months of follow-up. In a majority of 94 limbs (65%), the endovascular stage of interventions focused on long (>15 cm) femoropopliteal occlusions in parallel to regular CFA surgical revascularization. Two or three runoff tibial trunks were evinced in 84% cases, while one or none permeable vessel was found in 23 (16%) limbs. Results: Inasmuch surgical approach was successful in all cases, the endovascular stage was technically profitable in 134 (93%) cases. The ABI posto-peratively improved (>1.5) in 73% of cases, while clinical presentation gained at least one Rutherford category in 89% limbs. The mean hospital stay was 6.1 days (3 - 12 days) whereas the 30-day mortality rate in this homogeneous “high-risk” group of patients was 3.2%. Global risk factors alike age (>70 years/p = 0.0005), smoking ((p = 0.0170) and female gender (p = 0.0111), together with CTOs length (>15 cm/(p = 0.0470), severe calcifications (p = 0.0001), poor tibial runoff (p = 0.0001), TASC “C” and “D” lesions (p = 0.360 and (p = 0.0394), the stent number ((n = 3) and length (>6 cm) ((p = 0.0039 and (p = 0.0003) and the initial ABI scoring ((p = 0.0051) showed statistical negative influence on primary patency. Conclusion: Hybrid infrainguinal revascularization may afford useful results in selected ASA “high risk” patients, own

关键词： Hybrid Endarterectomy Endovascular Procedures High-Risk Patients Subintimal Angioplasty Lower Limb

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：