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Thoracic splenosis: Case report of a symptomatic case

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Chinese Journal of Traumatology 2020年第3期23卷 185-186页

作者： Florent le bars Remy Pascot Charles Ricordel Herve Corbineau Jean Philippe Verhoye Bertrand Richard De Latour Simon Rouze Department of Cardiothoracic Surgery University Hospital CentreRennesFrance Department of Vascular Surgery University Hospital CentreRennesFrance Department of Pneumology University Hospital CentreRennesFrance

Thoracic splenosis is the autotransplantation of splenic tissue in the left thoracic cavity as a result of a splenic injury. This rare pathology is usually asymptomatic and may be discovered on incidental imaging, but the diagnosis often requires invasive procedures such as surgery in order to eliminate a neoplasic origin. We report a rare symptomatic case of a 39-year-old man presenting with chest pain and multiple nodules revealed on a computed tomography scan. The patient underwent a surgical exploration and the pathological studies concluded to a thoracic splenosis. Indeed, the previous medical history of the patient revealed a left thoraco-abdominal traumatism during childhood. The aim of this paper is to emphasize that the diagnosis can now be performed using only imaging techniques such as technetium-99 sulfur colloid or labelled heat-denatured red blood cell scintigraphy to avoid unnecessary invasive procedures including thoracotomy.

关键词： Splenectomy Thoracic splenosis Splenic injury Diaphragmatic injury Pleural nodule

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非洲投资仲裁的演变

北京仲裁 2020年第2期 141-154页

作者： Benoit le bars 艾昕语(译) 朱伟东(校) Lazareff律师事务所湘潭大学法学院中国非洲研究院非洲法律研究中心

引言随着非洲逐步融入全球经济,以及它在国际争端纠纷解决方面的经验日益丰富,非洲投资仲裁正面临转型。近年来,非洲为成为一个有吸引力的投资目的地作出了巨大的努力。根据联合国贸易和发展会议(UNCTAD)发布的《2017年世界投资报告》,... 详细信息

引言随着非洲逐步融入全球经济,以及它在国际争端纠纷解决方面的经验日益丰富,非洲投资仲裁正面临转型。近年来,非洲为成为一个有吸引力的投资目的地作出了巨大的努力。根据联合国贸易和发展会议(UNCTAD)发布的《2017年世界投资报告》,非洲在2016年吸引了590亿美元的外国直接投资,占全球总投资额的3.4%。

关键词：投资仲裁国际争端纠纷解决世界投资报告总投资额外国直接投资非洲目的地

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针刺镇痛与弥漫性伤害抑制性控制

江西医学院学报 1991年第2期31卷 32-39页

作者：朱兵 L. Villanueva D. le bars 中国中医研究院针炙研究所法国国家健康和医学研究院161研究所

用微电极记录大鼠三叉神经尾侧核会聚神经元活动,电刺激感受野中心可以诱发A和C类纤维的传入反应。用48℃热水浸烫大鼠后肢可明显抑制会聚神经元C类纤维的传入反应,并有明显的后抑制效应。这种效应已被命名为弥漫性伤害抑制性控制(DNIC... 详细信息

用微电极记录大鼠三叉神经尾侧核会聚神经元活动,电刺激感受野中心可以诱发A和C类纤维的传入反应。用48℃热水浸烫大鼠后肢可明显抑制会聚神经元C类纤维的传入反应,并有明显的后抑制效应。这种效应已被命名为弥漫性伤害抑制性控制(DNIC)。手针“足三里”和非穴位也能明显抑制会聚神经元C类纤维的传入反应,后抑制效应更明显而持久。提示针刺镇痛涉及到DNIC。这些效应均可部分被纳洛酮拮抗。

关键词：针刺镇痛弥漫性伤害抑制性控制

Simultaneous Determination by HPLC-UV Vis of Tartrazine and Sunset Yellow in Soft Drinks Sold in Benin

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American Journal of Analytical Chemistry 2022年第8期13卷 277-288页

作者： Janvier Engelbert Agbokponto André Philippe S. Kpaibe Loconon Achille Yemoa Assogba Gabin Assanhou Habib Ganfon gildas Komenan Gbassi Michèle Aké N’cho Christoph Amin Laboratoire de Chimie Analytique et d’Analyse des Médicaments UFR Pharmacie Faculté des Sciences de la Santé Université d’Abomey-Calavi Cotonou Bénin UFR Pharmacie Faculté des Sciences de la Santé Université d’Abomey-Calavi Cotonou Bénin Département de Chimie Analytique Bromatologie Chimie Générale et Minérale UFR des Sciences Pharmaceutiques et Biologiques Université Félix Houphou&euml t-Boigny Abidjan C&ocirc te d’Ivoire

The use of dyes such as tartrazine (E102) and sunset yellow (E102) in food, beverages and health products for technological and commercial purposes is common. The adverse effects caused by these dyes, such as allergies and hyperactivity disorder have been reported, especially in children. In the present study, a chromatographic method was developed and validated for simultaneous determination of tartrazine and sunset yellow. The chromatographic separation was performed on a Lichrocart® C18 column (125 × 4.6 mm;5 μm) with a security Guard-C18 column (4 × 2.0 mm, 5 μm;Phenomenex, Torrance, CA, USA) maintained at 30°C. The mobile phase consisted of a mixture of acetonitrile/ammonium acetate buffer pH 6.8 in gradient mode with a flow rate of 1 mL/min. The injection volume was 10 μL. The detection wavelength was set at 455 nm. The parameters of specificity, linearity, precision, repeatability, accuracy and sensitivity were examined for validation. The developed method is linear in the range of 1 μg/mL to 100 μg/mL with a R2> 0.998. The intra-day and inter-day precisions (RSD) were less than 0.6% and 3.1% respectively. The detection limit was 0.03 μg/mL and the quantification limit was 0.1 μg/mL. The retention time of tartrazine was 2.86 min, while sunset yellow was detected at 5.67 min. A simple, rapid, accurate and robust HPLC/UV-Visible method was developed and validated for simultaneous identification and quantification of tartrazine and sunset yellow. This developed method was successfully applied for the simultaneous determination of tartrazine and sunset yellow in soft drinks sold in Benin.

关键词： Tartrazine Sunset Yellow HPLC-UV Food Dyes

Embedding MSCs in Si-HPMC hydrogel decreased MSC-directed host immune response and increased the regenerative potential of macrophages

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Regenerative Biomaterials 2022年第1期9卷 490-500页

作者： Christelle Demarquay Lara Moussa gildas Réethorée Fabien Milliat Pierre Weiss Noëlle Mathieu Human Health Department IRSNFrench Institute for Radiological Protection and Nuclear SafetySERAMEDLRMedFontenay-aux-Roses 92262France Facultéde Chirurgie Dentaire Regenerative Medicine and Skeleton(RMeS)LaboratoryUniversite de NantesNantes 44042France

Embedding mesenchymal stromal cells(MSCs)in biomaterial is a subject of increasing interest in the field of Regenerative *** up the clinical use of MSCs is dependent on the use of non-syngeneic models in accordance with Good Manufacturing Practices(GMP)requirements and on *** this end,in this study,we analyzed the in vivo host immune response following local injection of silanized hydroxypropyl methylcellulose(Si-HPMC)-embedded human MSCs in a rat model developing colorectal damage induced by ionizing *** and lymphocytes from mesenteric lymph nodes were harvested in addition to colonic *** set up tests,using flow cytometry and a live imaging system,to highlight the response to specific antibodies and measure the cytotoxicity of lymphocytes against injected *** demonstrated that Si-HPMC protects MSCs from specific antibodies production and from apoptosis by *** also observed that Si-HPMC does not modify innate immune response infiltrate in vivo,and that in vitro co-culture of Si-HPMC-embedded MSCs impacts macrophage inflammatory response depending on the microenvironment but,more importantly,increases the macrophage regenerative response through Wnt-family and VEGF gene *** study furthers our understanding of the mechanisms involved,with a view to improving the therapeutic benefits of biomaterial-assisted cell therapy by modulating the host immune *** decrease in specific immune response against injected MSCs protected by Si-HPMC also opens up new possibilities for allogeneic clinical use.

关键词： Si-HPMC hydrogel mesenchymal stromal cells host immune response regenerative medicine

Retention Factors for Trace Metal Elements in Solid Phase and Applicable Adsorption Models: Case of <i>Moringa oleifera</i>

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Open Journal of Physical Chemistry 2021年第3期11卷 182-195页

作者： Mariette Désirée Yehe Edwige Odoh Patrick Grah Atheba Joel Cyriaque Dadje gildas Komenan Gbassi Département des Sciences Analytiques et Santé Publique UFR Sciences Pharmaceutiques et Biologiques Université Félix Houphou&#235 t Boigny Abidjan C&#244 te d’Ivoire Laboratoire National de la Santé Publique (LNSP) Service Contr&#244 le des Aliments Abidjan C&#244 te d’Ivoire Département des Sciences du Médicament UFR Sciences Pharmaceutiques et Biologiques Université Félix Houphou&#235 t Boigny Abidjan C&#244 te d’Ivoire Laboratoire de Constitution et Réaction de la Matière UFR Sciences des Structures de la Matière et Technologie Université Félix Houphou&#235 t Boigny Abidjan C&#244 te d’Ivoire

Moringa oleifera is an edible plant cultivated throughout the tropical belt. It belongs to the family Moringaceae and is one of its 14 known species. This paper presents a synthesis of the main factors responsible for the retention of trace metal elements (TMEs) by Moringa oleifera seed powder, a natural adsorbent. The five main factors studied are metal concentration, solution pH, adsorbent particle size, adsorbent dose and adsorbent/adsorbate contact time. Through these factors, we present the optimal conditions for removal of these TMEs, as well as adsorption isotherm models appropriate for the conditions of retention of these metal cations by the adsorbent. The times of 20 min (GD) and 50 min (GND) are the equilibrium times obtained in our study. An optimal adsorbent mass (GD and GND powders) of 4.5 g was found. 20% to 97% abatement is observed for average pH values between 6 and 8. The coefficients of determination (R2) obtained (0.972, 0.963, 0.991 and 0.799) during the isotherm experiments carried out at 20°C, 30°C, 40°C and 50°le="font-family:;" "="">C are close to 1. Al

关键词： Moringa oleifera Adsorption Trace Metal Elements (TMEs)

轻质高绝缘复合芯体制备及其在66 kV复合横担中的应用

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高压电器 2024年第4期60卷 56-64页

作者：张重远苏铮李乐高烽晟李浩义尹晓萱刘贺晨刘云鹏周松松唐力华北电力大学河北省绿色高效电工新材料与设备重点实验室河北保定071003 中国电力科技研究院有限公司北京100192 中国南方电网电力科学研究院广州510000

随着“双碳”战略的逐步落实,新型复合材料横担正逐步代替铁制横担,在电力线路中的应用日益广泛。文中制备得到密度为1.1 g/cm^(3)的66 kV轻质高绝缘复合绝缘横担,并对其进行吸水率、染料渗透、水扩散泄漏电流、击穿强度、热诱导、机械... 详细信息

随着“双碳”战略的逐步落实,新型复合材料横担正逐步代替铁制横担,在电力线路中的应用日益广泛。文中制备得到密度为1.1 g/cm^(3)的66 kV轻质高绝缘复合绝缘横担,并对其进行吸水率、染料渗透、水扩散泄漏电流、击穿强度、热诱导、机械及电气试验。试验结果表明:填充芯体材料样品的质量吸水率为0.141%,水扩散泄漏电流小于103.3μA,交流击穿强度大于71 kV/cm,各项性能指标均达到DL/T 1580—2016棒形复合绝缘子用芯棒技术规范对于理化性能、电气性能及机械性能的标准要求,样品及横担整体无明显缺陷,横担耐老化性较好。同时,轻质高绝缘复合绝缘横担微观界面结合良好,绝缘性能优于传统实心横担,满足新型电力系统清洁低碳、安全可靠的应用需求。

关键词：轻质高绝缘材料复合绝缘横担绝缘芯体电气性能

Modeling of Copper Adsorption by <i>Moringa oleifera</i>Seed Powders

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Open Journal of Physical Chemistry 2021年第4期11卷 197-219页

作者： Mariette Désirée Yehe Edwige Odoh Blaise N’guadi Allou Patrick Grah Atheba Joel Cyriaque Dadje gildas Komenan Gbassi Département des Sciences Analytiques et Santé Publique UFR Sciences Pharmaceutiques et Biologiques Université Félix Houphou&#235 t Boigny Abidjan C&#244 te d’Ivoire Laboratoire National de la Santé Publique (LNSP) Service Contr&#244 le des Aliments Abidjan C&#244 te d’Ivoire Département des Sciences du Médicament UFR Sciences Pharmaceutiques et Biologiques Université Félix Houphou&#235 t Boigny Abidjan C&#244 te d’Ivoire Laboratoire de Constitution et Reaction de la Matière UFR Sciences des Structures de la Matière et Technologie Université Félix Houphou&#235 t Boigny Abidjan C&#244 te d’Ivoire

In this work, an inexpensive and environmentally friendly natural adsorbent obtained from shelled (GD) and unshelled (GND) Moringa oleifera seeds was used for copper adsorption from aqueous solutions. A series of experiments were performed to assess the parameters influencing the adsorption phenomenon such as pH, adsorbent mass, adsorption equilibrium time and temperature. The kinetic results of adsorption described a pseudo-second order model. The adsorption isotherms are satisfactorily described by the Langmuir mathematical model. The thermodynamic data revealed a spontaneous and endothermic adsorption phenomenon. The level of copper in surface water before and after addition of moringa powders was carried out to verify the effectiveness of the adsorbent. A maximum adsorption rate of 51.28% and 61.96% was obtained with GD and GND powders respectively. Moringa oleiferale="font-family:""> seed powders are an effective alternative for the removal of copper from surface water.

关键词： Moringa oleifera Copper Adsorption Phenomenon

一种ZL114A薄壁锥壳铸件的铸造工艺研究

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铸造 2024年第4期73卷 565-570页

作者：邵啊新李乐意蔡银枝宁二宾彭光辉曹胜涛焦燕妍陈恒周徐帅洛阳航辉新材料有限公司河南洛阳471000

某薄壁锥形壳体铸件为航空飞行器前端重要装置组件,为ZL114A高强度铝合金铸件。因产品为半封闭结构,铸造时易出现内部质量问题,为了保证产品各项指标满足要求,采用差压铸造结合计算机仿真模拟分析,开展了对该铸件的铸造工艺研究,研究过... 详细信息

某薄壁锥形壳体铸件为航空飞行器前端重要装置组件,为ZL114A高强度铝合金铸件。因产品为半封闭结构,铸造时易出现内部质量问题,为了保证产品各项指标满足要求,采用差压铸造结合计算机仿真模拟分析,开展了对该铸件的铸造工艺研究,研究过程中发现锥顶三角区域在凝固时易出现缩松缺陷,结合仿真模拟对铸件凝固成形工艺进行了浇注系统的调整、增设冷铁等改进,消除了缩松倾向,完成了生产试制。铸件内部质量满足Ⅰ类件要求,附铸试棒平均抗拉强度、屈服强度、伸长率分别为364.67 MPa、306 MPa、7.5%,满足各项技术指标要求。

关键词： ZL114A 铝合金铸件锥形薄壁壳体计算机模拟差压铸造