检索结果-南通市图书馆

Impact of river Water Quality on Public Health in Perspective of Asian rivers:A Case Study of Buriganga river,Bangladesh

在线全文

学校读者我要写书评

暂无评论

Journal of Environmental & Earth Sciences 2023年第1期5卷 1-16页

作者： A.B.M.Kamal Pasha Mustafe Said Nur.sagar Mozumder Mahfuza Parveen Department of Environmental Science and Disaster Management Daffodil International UniversityDhaka1216Bangladesh Nkumba University P.O.Box 237LyamutundweUganda

Water pollution is one of the current global *** many countries are suffering from this problem specifically most South Asian and Southeast Asian countries,and Bangladesh is one of those countries that are suffering from water ***,the city of Bangladesh,Dhaka is one of the most densely populated cities in the world and overpopulation is showing a negative impact on the water quality *** of the rivers are very polluted around Dhaka city because of anthropogenic *** study focused on Buriganga river pollution and its impact on public *** study intended to find out the major cause of Buriganga river pollution and the health status of the community living beside the Buriganga *** the study identified all the common diseases which people are suffering from around the Buriganga river *** the study compared the results with other southeast Asian countries so that it can make the relationship and can make it easier to understand the current situation of water pollution on public health in East Asia and Southeast Asia *** the research work,it was noticed that the Buriganga river is very polluted due to human *** transportation system,fishing,and waste canals from industries become the primary reasons behind Buriganga’s current *** irresponsibility of both the environmental department and civil society is the major factor in Buriganga river *** hygienic level was also not in a good condition because so many wastes like plastic materials and other daily use materials were thrown out into the ***’s why public health conditions around the Buriganga river become vulnerable *** policies have to be implemented from the right perspective and the institutions have to be strong enough to handle all the issues regarding the Buriganga river.

关键词： Buriganga Water quality river pollution Public health Dhaka city

Effect of Chlorophytum Borivilianum Santapau and Fernandes on Sexual Dysfunction in Hyperglycemic Male rats

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Journal of Integrative Medicine 2009年第6期15卷 448-453页

作者： Mayank Thakur Shilpi Bhargava Werner Praznik renate Loeppert Vinod K Dixit Department of Pharmaceutical Sciences Dr. Hari Singh Gour University Department of Chemistry University of Natural and Applied Life Sciences Dr.Hari Singh Gour University

Objective:To investigate the effects of Chlorophytum borivilianum(CB) on sexual dysfunction, loss of body weight,and lack of libido in hyperglycemic rats induced with streptozotocin or ***: Wistar strain male albino rats were divided into five groups of six animals each:the control group(2% polyvinylpyrollidone solution),the streptozotocin control group(50 mg/kg),the alloxan control group(100 mg/kg), the streptozotocin + CB treated group(200 mg/kg),and the alloxan + CB treated group(200 mg/kg).O...

关键词： ayurvedic rasayana Chlorophytum borivilianum diabetes induced sexual dysfunction Safed Musli

Improvement in the performance of inverted planar perovskite solar cells via the CH3NH3PbI3-xClx:ZnO bulk heterojunction

在线全文

学校读者我要写书评

暂无评论

Improvement in the performance of inverted planar perovskite...

resistance to Fluoroquinolones and Other Antimicrobials in Culture-Positive <i>Salmonella typhi</i>Isolates in Gulbarga, South India

第六届新型太阳能电池材料科学与技术学术研讨会

作者： Zhiyong Liu Tingwei He Huihui Wang sagar M.Jain Kaikai Liu Jien Yang Na Zhang Hairui Liu Mingjian Yuan Henan Key Laboratory of Photovoltaic Materials Department of Physics and Materials ScienceHenan Normal University Department of Chemistry Nankai University College of Civil Engineering and Architecture Jiaxing University SPECIFIC College of EngineeringSwansea University Bay Campus

Zinc oxide(ZnO) as an electron transport material has been used in regular planar perovskite solar cells(PSCs). Herein, ZnO nanoparticles serve as an additive directly in perovskite active layer in order to fabricate a bulk heterojunction inverted planar PSC. The CHNHPbICl:ZnO bulk heterojunction is prepared by mixing ZnO nanoparticles into CHNHPbICl precursor solution. ZnO nanoparticles act as catalytic centers and induce the growth of perovskite grains leading to the formation of large-size perovskite crystals. remarkably, hysterysis free power conversion efficiency of 17.26% is achieved when precisely control the concentration of ZnO nanoparticles in CHNHPbICl:ZnO bulk heterojunction active layer. The presence of ZnO nanoparticles in the perovskite films enhances the conductivity and electron mobility. Efficient charge injection of CHNHPbICl:ZnO film can improve charge extraction in the PSCs. Moreover, the PSCs with CHNHPbICl:ZnO bulk heterojunction exhibit high fill factor of 77.3% and-short current density of 22.71 mA cm2, which is attributed to improved perovskite quality. The bulk heterojunction structure is fabricated by combining perovskite and metal oxides, which is of great importance to the development and commercialization of PSCs in the future.

关键词： Perovskite solar cell Zinc oxide Bulk heterojunction Absorption Electron mobility

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

Advances in Microbiology 2021年第1期11卷 16-26页

作者： Kavita Nagshetty N. G. Manjula Girish C. Math Arali sagar Mohan C. T. Shivannavar S. M. Gaddad Department of P. G. Studies and research in Microbiology Gulbarga University Gulbarga Karnataka India Department of Microbiology School of Basic and Applied Sciences Dayananda Sagar University Bengaluru Karnataka India

Background: Typhoid fever is a major public health concern in developing countries. The upsurge in the occurrence of bacterial isolates that are resistant to nalidixic acid;with reduced susceptibility to ciprofloxacin in typhoidal Salmonellae constitutes a challenge to the clinician. Methods: In order to better understand the epidemiology of Salmonella infections in South India, Salmonella typhi isolates were screened from various healthcare centers. Salmonella isolates were identified by using standard phenotypic, serological, antibiotic susceptibility and molecular methods. results: Among a total of 100 S. typhi isolates 9% were found to be multidrug resistant and 30% were nalidixic acid resistant. Isolates with reduced susceptibility to ciprofloxacin displays single base mutations in the gyrA gene. A very low rate of 1% resistance was found to ciprofloxacin. The only one isolate with ciprofloxacin MIC ≥ 4 μg/ml also showed single mutation in the QrDr of the gyrA gene in S. typhi (GenBank accession no. HQ176349-HQ176368). Conclusions: A very low rate of nalidixic acid resistance with reduced susceptibility to ciprofloxacin was observed in comparison to other endemic areas in isolates of S. typhi from Gulbarga, South India, with steadily increasing NAr S. typhi but decreasing MDr isolations over the study period. This is most likely due to an increased use of ciprofloxacin as a first line drug of choice over more traditional antimicrobial agents for the treatment of typhoid fever.

关键词： Salmonella typhi Fluoroquinolones MDr NAr gyrA QrDr

儿童下颌骨朗格汉斯细胞组织细胞增生症的CT表现：附10例报告

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

中华口腔医学研究杂志（电子版） 2017年第2期11卷 100-105页

作者：陈颖茜范淼陈丹 sagar Pandey 李秀红中山大学附属第一医院医学影像科广州510080 中山大学附属第一医院口腔颌面外科广州510080 中山大学公共卫生学院妇幼系广州510080

目的回顾性研究儿童下颌骨朗格汉斯细胞组织细胞增生症(LCH)的计算机体层摄影术(CT)表现,探讨CT在诊断LCH中的价值。方法收集中山大学附属第一医院自2006年1月至2016年7月中经手术病理证实的儿童下颌骨LCH患者的CT资料,同时在Sino Med... 详细信息

目的回顾性研究儿童下颌骨朗格汉斯细胞组织细胞增生症(LCH)的计算机体层摄影术(CT)表现,探讨CT在诊断LCH中的价值。方法收集中山大学附属第一医院自2006年1月至2016年7月中经手术病理证实的儿童下颌骨LCH患者的CT资料,同时在Sino Med数据库上以中文关键词及Pub Med数据库上以对应英文搜索语句对2016年及之前的文献进行无限定条件智能搜索,获取全文并人工进行筛选,对获得病例进行描述性统计分析。结果共获得18例病例,其中10例来自中山大学附属第一医院,8例来自文献。儿童下颌骨LCH的CT影像多表现为平扫期均匀软组织密度影(13/18),边缘多清晰(14/18),下颌骨皮质呈穿凿样破坏(17/18),可有明显的骨膜新生骨(11/18)但仅有轻微的边缘骨硬化带(5/18);牙根无推移或仅轻微受压推移,可伴牙囊破坏、牙根吸收(3/18)。增强扫描可见肿物轻至中度均匀强化(10/10),部分边缘可见环型强化带(5/10)。结论 CT在儿童下颌骨LCH的诊断中有重要的辅助作用,有助于该病的综合判断和正确治疗。

关键词：下颌骨组织细胞增多症,朗格尔汉斯细胞计算机体层摄影术,X线计算机

澜沧江和怒江流域的气候变化及其对径流的影响

在线全文

学校读者我要写书评

暂无评论

气候变化研究进展 2017年第4期13卷 356-365页

作者：刘苏峡丁文浩莫兴国王盛刘昌明罗贤何大明 sagar ratna Bajracharya Arun Bhakta Shrestha Nand Kishor Agrawal 中国科学院地理科学与资源研究所陆地水循环及地表过程重点实验室北京100101 中国科学院大学资环学院/中丹学院北京100049 云南大学昆明650091 International Centre for Integrated Mountain Development Kathmandu 100023Nepal

采用VIP(Vegetation Interface Processes)模型和HIMS(Hydro-Informatic Modeling System)模型,模拟分析了1957—2012年澜沧江和怒江流域(简称两江流域)水资源量的演变。根据CMIP5 rCP2.6,rCP4.5和rCP8.5情景预测,模拟了2030年代和2050年代流域水资源的变化。研究发现,过去50年间,两江流域的气温都呈升高趋势,但海拔较高的上游地区升幅大于下游。年总降水量的变化趋势不明显,但春季降水增加趋势明显。两江流域年总水资源量为650亿~850亿m^3,水资源总量长期变化趋势不明显,其中澜沧江的波动性(1.884,最大与最小之比)大于怒江。空间上水资源量呈现北低-南高的格局。在未来,两江流域气温仍呈增加趋势,降水呈增加趋势,径流呈增加趋势,空间变异性趋小,但较强的季节性变化对水资源安全仍具有较大的挑战性。

关键词：径流气温降水 VIP模型 HIMS模型

聚合物纳米纤维去除制革废水中Cr(Ⅲ)的研究

在线全文

学校读者我要写书评

暂无评论

中国皮革 2014年第7期43卷 46-49页

作者： Iman Y.El-Sherif sagar Tolani Kennedy Ofosu Ola A.Mohamed Adam K.Wanekaya 陈小珂水资源研究和污染控制部门国家研究中心埃及开罗12622 密苏里州立大学化学系美国密苏里州斯普林菲尔德65897

采用半胱氨酸改性的聚合物纳米纤维,经证实能够快速高效地去除制革废水中的Cr(Ⅲ)。对试验条件进行优化,如pH、纳米纤维含量和接触时间,以获得最大的去除率。结果表明:最佳条件是纳米纤维用量为0.1mg/mL,pH值为5.5,接触时间为45min,此... 详细信息

采用半胱氨酸改性的聚合物纳米纤维,经证实能够快速高效地去除制革废水中的Cr(Ⅲ)。对试验条件进行优化,如pH、纳米纤维含量和接触时间,以获得最大的去除率。结果表明:最佳条件是纳米纤维用量为0.1mg/mL,pH值为5.5,接触时间为45min,此时约有99%的Cr(Ⅲ)被去除,表明该材料处理含铬废水的效果较好,最大去除率约为1.75g铬/g聚合物材料。这可能是由多种因素造成的,如纳米纤维具有较高的比表面积,以及大量的半胱氨酸基团与重金属离子具有较强的亲和力。因此,纳米级聚合物材料在去除废水中重金属离子方面具有巨大的潜力。

关键词：纳米纤维铬去除修复制革废水纳米技术吸附

Spinal Cord Injuries without Visible Bone Lesions: Analysis of Four Consecutive Cases

在线全文

学校读者我要写书评

暂无评论

Open Journal of Orthopedics 2018年第3期8卷 95-101页

作者： Magatte Gaye Sarah Ntshindj Mutomb Amadou Ndiasse Kasse N’famara Sylla sagar Diop Alvin Nah Doe Aboubacar Sidiki Sangharé Mouhamadou Habib Sy Youssoupha Sakho Department of Neurosurgery Grand-Yoff General Hospital Dakar Senegal Department of Orthopedics and Trauma Surgery Grand-Yoff General Hospital Dakar Senegal

Objectives: Interest of this study is to report four cases of spinal cord injuries without bone lesion. Evolution of the injured patients according to the initial clinic assessment at admission and the treatment performed are discussed. Materials and Methods: From January to December 2016, we performed a retrospective study at the Neurosurgery Department of Hospital General Grand Yoff of Dakar. Four patients were followed for spinal cord injury without visible bone lesions. We analyzed the clinical, radiological, therapeutic and evolutionary data. Trauma caused by stabbing was excluded. results: In a year, 83 cases of spinal trauma with neurological deficit were hospitalized in the department. Among them, 4 had spinal cord injuries without visible bone lesions. The average age was 31.7 years with extremes ranging from 14 to 47 years. The sex ratio of male/female was 3. We have recorded 2 cases of road traffic accidents, 1 case of fall from height and 1 case of sports accident. On the neurological level, we found 3 cases of tetraplegia, and 1 brachial monoplegia. Computed tomography in all patients was normal. All of them benefited from magnetic resonance imaging that showed spinal cord injury. All patients were under conservative treatment. One patient fully recovered, two partially and one passed away. Conclusion: In presence of any post traumatic myelopathy case, the absence of disco-vertebral lesions should bring to mind the SCIWOrA as well as indicate the realization of magnetic resonance imaging.

关键词： Spinal Cord Injuries Trauma MrI

The Outcome of Endoscopic Third Ventriculostomy in a Mixed Population of Adult and Pediatric Patients

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Open Journal of Modern Neurosurgery 2020年第3期10卷 325-333页

作者： Maguette Mbaye Lebrun Gahito Alioune Badara Thiam Mbaye Thioub Elcheikh Ndiaye Sy Mohameth Faye sagar Diop Moustapha Ndongo Ndaraw Ndoye Momar Code Ba Seydou Boubakar Badiane Neurosurgical Department of Fann Teaching Hospital Cheikh Anta Diop University Dakar Senegal

Background: Endoscopic third ventriculocisternostomy (ETV) is the most common neuroendoscopic technique in the treatment of noncommunicating hydrocephalus. Since its introduction, ETV has been a safe alternative to ve... 详细信息

rong>Background: rong>Endoscopic third ventriculocisternostomy (ETV) is the most common neuroendoscopic technique in the treatment of noncommunicating hydrocephalus. Since its introduction, ETV has been a safe alternative to ventriculoperitoneal shunt (VP shunt), which has a high complication rate with significant socio-economic consequences. The authors report the results of ETV performed in the neurosurgical department of FANN teaching hospital in Dakar. rong>Methods: rong>This retrospective study presents the results of ETV performed in 513 patients with hydrocephalus of various etiologies, ranging from February 2010 to February 2018. We have included in our series from 2010 to 2016, all patients with clinically revealed non-communicating hydrocephalus followed by a brain computed tomography (CT) scan or brain magnetic resonance imaging (MrI) and who have benefited from an ETV, in which the ETV Success Score was evaluated. rong>results:rong> The mean age of our patients was 14.10 years, with 298 (58%) males. The clinical symptomatology varied in both children and adults and manifested in children as macrocrania in 67.8% of the patients, while in adults, it manifested as raised intracranial pressure (ICP) in 87.5% of patients. A brain CT scan was performed in 461 (89.86%) of patients. The causes of hydrocephalus were dominated in 49% of patients by malformative pathologies, followed by tumors in 41% of patients, infections in 2.33% of patients, and normal-pressure hydrocephalus in 3.8% of patients. During the postoperative period, we found 21.41% of various complications. rong>Conclusions:rong> The findings in our series were compared to those in the literature and were satisfactory, thus proving the effectiveness and safety of ventriculocisternostomy in our department. In resource-limited countries, ETV can be performed with good results and less mortality and morbidity.

关键词： Endoscopic Third Ventriculostomy Hydrocephalus Minimally Invasive Neurosurgery