检索结果-南通市图书馆

Micropulse diode laser therapy in refractory glaucoma

Advances in Ophthalmology Practice and Research 2023年第1期3卷 23-28页

作者： Moctar Issiaka Khalil Zrikem Adil Mchachi Leila Benhmidoune Rayad Rachid Mohamed EL.Belhadji abdoul Salam Youssoufou Souley abdou amza Faculty of Medicine and Pharmacy Hassan II University of CasablancaCasablancaMorocco Adult Ophthalmology Department 20 August 1953 HospitalIbn Rochd University Hospital of CasablancaCasablancaMorocco Ophthalmology Department of the Amirou Boubacar Diallo National Hospital NiameyNiger

Purpose:Description of safety and efficacy of micropulse lYanssderal cydophotocoagulation as a treatment option for refractory ***:This is a prospective study including 39 eyes of 31 patients foil owed for refractory glaucoma,who benefited from transsderal cyclophotocoagulation using a mic topi used *** main indication for tire procedure was increased ocular pressure refractory to quadri therapy in various types of *** patients were tieated using iridex Cyclo G6 laser with a Micropulse P3 infrared probe with a wavelength of 810 *** parameter for tire procedure were a duration of 90 s per hemisphere with a power of 2000 mW and an eneigy of 180 *** tire upper and lower hemispheres were treated in tire same procedure,sparing tire 3 o'clock and 9 o'clock meridians,and aD tire patients benefited from a single treatment *** following parameters were evaluated;ocular pain and overall tolerance;visual acuity;and tire evolution of IOP postoperatively up to 9 ***:The glaucoma subtypes treated are as follows:primaty open-angle glaucoma(n=05),chronic angle-closure glaucoma(n=13),neovascular glaucoma(n=07),aphakic glaucoma(n=06),malignant glaucoma(n=04),post-traumatic angle recession(n=02),and inflammatoiy glaucoma(n=02).The mean pre-operative intraocular pressure was 42.3±5.2 mmHg and tire mean post operative intraocular pressure at 9 months was 16.9±1.9 mmHg The reduction in IOP was 49.9%.The average number of intraocular pressure-lowering medications used prior to surgery was four,and tire average number of medications used at tire 9-month postoperative visit was 2.0±1.2(703%of patients were on dual therapy).The overall success rate was 60.9%.Conclusions:Micropulse transsderal cydophotocoagulation appears to be a safe and effident treatment for refractory *** indications should therefore be broadened and proposed early in various situations.

关键词： Micropulse laser Transscleral cyclophotocoagulation Refractory glaucoma Intraocular pressure

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

Contribution of the Fundus Examination in the Management of General Pathologies in Hospital in Lomé-Togo

引用

Open Journal of Internal Medicine 2019年第3期9卷 52-61页

作者： Nouhou Diori Adam Nonon Saa Kassoula Batomaguela Dzidzinyo Kossi Abbey Abbevi Elie abdou Zakou Yacoubou Soumana abdou amza Komi Patrice Balo Ophthalmology Department Teaching Hospital Sylvanus Olympio Lom&eacute Togo Ophthalmology Department Be District Hospital Lom&eacute Togo Clinique Lumière Niamey Niger Ophthalmology Department Lamord&eacute National Hospital Niamey Niger

Many general conditions have an impact on the fundus. The purpose of our work was to study the epidemiological profile of patients referred to our service for a review of the fundus and analyze the results. It was a retrospective study description of the examinations of the fundus during the period from January 2016 to December 2017. In the ophthalmology department of the Lomé University Hospital Center, during the study period, 1019 consultations were recorded, of which 727 were for fundus 6.84%. There were 336 men and 391 women, a sex ratio of 0.85. The age group 40 - 69 years accounted for 61.9%. The frequency of the main reasons for the request was hypertension 54.2% (N = 394);hypertension complicated or associated with other conditions (CKI, CKD, pregnancy and diabetes) accounted for 21.6% (N = 157), headache associated with a decrease in visual acuity 8.25% (N = 60), diabetes 6.46% (N = 47) and sickle cell disease 0.69% (N = 5). Hospitalized patients 52.41% (N = 381). The fundus was abnormal in 546 patients or 75.11%. Hypertensive retinopathy was found 80.21% cases in hypertensive patients, diabetic retinopathy 43.42 in diabetic patients. Diabetics Fundus examination in hospital practice found a retinal lesion in three-quarters of cases. It so important to ask the examination of the fundus most often in the current pactise.

关键词： Fundus Hypertensive Retinopathy Diabetic Retinopathy Headache Lomé

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

Neurofibromatosis Type 1: About a Series of 5 Cases

引用

Open Journal of Ophthalmology 2022年第4期12卷 407-415页

作者： Laouali Laminou I. Kassoumou Kadidia N. D. Adam Y. Abba Kaka amza abdou Department of Ophthalmology H&#244 pital National de Zinder Zinder Niger Université André Salifou de Zinder Zinder Niger Department of Dermato-Venerology Hô pital National de Zinder Zinder Niger Ophthalmology Department H&#244 pital Amirou Boubacar Diallo de Niamey Niamey Niger Université abdou Moumouni Dioffo de Niamey Niamey Niger Department of Ophthalmology H&#244 pital National de Niamey Niamey Niger

We report in this series 5 cases of neurofibromatosis type 1 (NF1). The mean age of the patients was 14.8 years (±9.65) with extremes ranging from 3 to 27 years. Three patients were female (60%) and two were male (40%). Three of our patients (60%) had no history of NF1 and two were monophthalmic because of plexiform neurofibromas involving the eyelid. Both cutaneous and plexiform neurofibromas were found in all our patients. The latter were of variable location: one on the chin, two on the left temporofacial region and two on the left upper eyelid. They were the cause of complications such as blindness in two patients. Café au lait macule (CALMs) was also present in all our patients. No cases of optic nerve glioma were found in the 3 patients (60%) who underwent an orbitocerebral CT scan. Lish nodules were observed in 4 patients (80%). With the exception of the 3-year-old female patient who was not old enough to go to school, all the other four patients dropped out of school because of the stigma attached to them.

关键词： Neurofibromatosis Type 1 Monophtalmic Stigma Zinder Niger

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

Characterization of Wastewater in School Environments for an Ecological Treatment Solution: A Case Study of Ndiebene Gandiol 1 School

引用

Journal of Water Resource and Protection 2024年第1期16卷 27-40页

作者： Falilou Coundoul abdou Khafor Ndiaye abdoulaye Deme Polytechnic Institute of Saint-Louis Gaston Berger University Saint-Louis Sénégal Applied Sciences and Technologies Training and Research Unit Gaston Berger University Saint-Louis Sénégal

The study conducted at Ndiebene Gandiol 1 school in Senegal has unveiled serious environmental and public health challenges. The wastewater analysis revealed high levels of Biochemical Oxygen Demand (BOD5), Chemical Oxygen Demand (COD), and fecal coliforms, signaling potential risks to the well-being of students and staff. This situation mirrors a wider issue in rural educational settings, where inadequate sanitation persists. Intensive wastewater treatment options are known for their effectiveness against high pollutant loads but are resource-intensive in both energy and cost. Conversely, extensive treatment systems, while requiring more land, provide a sustainable alternative by harnessing natural processes for pollutant removal. The research suggests a hybrid treatment approach could serve the school’s needs, balancing the robust capabilities of intensive methods with the ecological benefits of extensive systems. Such a solution would need to be tailored to the specific environmental, financial, and logistical context of the school, based on comprehensive feasibility studies and stakeholder engagement. This study’s findings underscore the urgency of addressing sanitation in schools, as it is intrinsically linked to the health and academic success of students. Quick, effective, and long-term strategies are vital to secure a healthier and more prosperous future for the youth. With proper implementation, the school can transform its sanitation facilities, setting a precedent for rural educational institutions in Senegal and similar contexts globally.

关键词： Wastewater Characterization Ecological Treatment School Sanitation Phytoremediation Rural Infrastructure Environmental Health

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

Ecological Wastewater Treatment System in a School Environment Using a Horizontal Flow Biological Reactor: The Case of Typha

引用

Journal of Environmental Protection 2024年第1期15卷 1-12页

作者： Falilou Coundoul abdou Khafor Ndiaye abdoulaye Deme Institut Polytechnique de Saint-Louis (IPSL) Universit&eacute Gaston Berger de Saint-Louis Saint-Louis S&eacuten&eacutegal UFR de Sciences Appliqué es et de Technologie Universit&eacute Gaston Berger de Saint-Louis Saint-Louis S&eacuten&eacutegal

The overarching goal of this study is to offer an effective and sustainable solution to the challenges of sanitation in rural and school settings in the northern region of Senegal. The study explores a wastewater treatment approach based on phytoremediation, with a particular focus on the use of horizontally-flowing reed bed filters. Furthermore, it aims to adapt and optimize these systems for the specific needs of Senegal, focusing on wastewater in school environments. Thus, we constructed a horizontally-flowing reed bed filter, planted with Typha, at the Ndiébène Gandiol school in Senegal. We will investigate the efficiency of wastewater treatment by this horizontally-flowing reed bed filter, emphasizing the role of the plant used: Typha. The filter is described in detail, specifying its dimensions, its composition of flint gravel, and the choice of plants, namely Typha. The experimental protocol is detailed, describing the sampling at the entrance and exit of the filter to evaluate water quality. The parameters analyzed include Chemical Oxygen Demand (COD), Biochemical Oxygen Demand over 5 days (BOD5), suspended solids, ammonium, nitrates, phosphates, pH, conductivity, and fecal coliforms. The results indicate a significant improvement in water quality after treatment. COD, BOD5, suspended solids, and fecal coliforms are greatly reduced, thus demonstrating the efficacy of the Typha filter. However, nitrate concentrations remain relatively stable, suggesting room for improvement in their elimination. A perspective of reuse of the treated water is considered, showing that the effluents from the planted filter meet Senegalese and international standards for irrigation. The findings suggest that these waters could be used for a variety of crops, thereby reducing the pressure on freshwater resources. In conclusion, the Typha-based filtration system shows promising results for improving water quality in this region of Senegal. However, adjustments are necessary for mor

关键词： Hydraulic Engineering Wastewater Quality Wastewater Treatment Agricultural Irrigation Sanitation Engineering Environment

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

Ecological Wastewater Treatment System Using a Horizontal Flow Biological Reactor: The Case of Vetiver

引用

Journal of Environmental Protection 2024年第1期15卷 26-38页

作者： Falilou Coundoul abdou Khafor Ndiaye abdoulaye Deme Polytechnic Institute of Saint-Louis Gaston Berger University Saint-Louis S&eacuten&eacutegal Applied Sciences and Technologies Training and Research Unit Gaston Berger University Saint-Louis Saint-Louis S&eacuten&eacutegal

Confronted with the challenge of wastewater management, particularly in the school environment of Senegal, our study set out to achieve multiple objectives. Following field surveys, laboratory analyses of wastewater samples were carried out, revealing a significant pollutant load. In the community of Gandiol, near Saint-Louis (Senegal), the school of Ndiebene Gandiol 1 faces significant sanitation challenges. Our study aimed to address this issue by using a constructed filter composed of two filtering bed cells measuring 12 × 8.5 m, preceded by a septic tank. We particularly focused on the influence of Vetiver;a plant chosen for its purification potential. Our analyses showed remarkable efficiency of the filter. Elimination rates reached 95% for 5-Day Biochemical Oxygen Demand (BOD5), 91% for Chemical Oxygen Demand (COD), and 92% for SS, far exceeding the Senegalese standards set at 50 mg/L, 200 mg/L, and 40 mg/L, respectively. Furthermore, the concentration of fecal coliforms was reduced to 176 FCU/100mL, well below the Senegalese threshold of 2000 FCU/100mL and close to the World Health Organization’s (WHO) recommendation of 1000 FCU/100mL. However, despite these promising results, some parameters, particularly the concentration of certain pollutants, approached the thresholds defined by European legislation. For example, for Suspended Solids (SS), the post-treatment level of 3 mg/L was well below the Senegalese standard but edged close to the European minimum of 10 mg/L. In conclusion, the Vetiver filter demonstrated a remarkable ability to treat school wastewater, offering high pollutant elimination percentages. These results suggest significant opportunities for the reuse of treated water, potentially in areas such as irrigation, though some adjustments may be necessary to meet the strictest standards such as those of the European union (EU).

关键词： Hydraulic Engineering Wastewater Quality Wastewater Treatment Agricultural Irrigation Sanitation Engineering Environment

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

Hepatic Elastometry in the Management of Hepatitis B at National Hospital of Niamey

引用

Open Journal of Gastroenterology 2024年第9期14卷 313-321页

作者： Ousseini Fanta Hamidine Illa Moussa Saley Sahada abdourahamane Idrissa Fatouma abdou Nafissatou Ali Cheik Rakia abdou Boubé abdou Djibo Ben Moctar Ky Lawagoulé Joseph Emile Daou Mamane Faculty of Health Sciences Abdou Moumouni University Niamey Niger Department of Hepato-Gastroenterology National Hospital of Niamey Niamey Niger Laboratoire de Recherche Clinique et Systme de Sant Niger Universit Andr Salifou of Zinder Zinder Niger Department of Hepato-Gastroenterology Zinder National Hospital Zinder Niger Department of Infectiology National Hospital of Niamey Niamey Niger Regional Hospital Centre of Niamey Niamey Niger Department of Hepato-Gastroenterology General Reference Hospital of Niamey Niamey Niger Department of Hepato-Gastroenterology The University Hospital Ouagadougou Burkina Faso Department of Internal Medicine General Reference Hospital of Niamey Niamey Niger

Introduction: Viral hepatitis B is a public health problem in Niger which is classified as a high endemicity area with a prevalence ranging from 8 to 17% depending on the studies [1] and that of HBV-related cirrhosis is about 40.26% in 2024. The decision to treat is based on a combination of three parameters: viral load, ALT values and the degree of hepatic fibrosis [2]. The latter is assessed by hepatic elastography (Fibroscan), which is a decisive factor in treatment. In Niger, until 2024, the decision to treat or not to treat a patient with HBV was based on the determination of viral load B and transaminases, and no work evaluating the contribution of this third element, liver elasticity, has been done, hence the interest of our study. Objective: To study the contribution of Fibroscan in measuring hepatic elasticity in the management of patients with HBV. Methodology: This was a prospective descriptive study conducted from January 05 to November 30, i.e. a period of 11 months, on clinically asymptomatic HBsAg-positive patients who had undergone FibroScan liver elasticity measurement. The examination was carried out by a hepatogastroenterologist who had received training in the Fibroscan. The median of ten measures of liver elasticity at the same point with an IQR of less than 30% was considered the valid measure and no or minimal fibrosis was defined as a value ˂7 Kpa, moderate fibrosis as a value between 7 and 10 kpa, severe fibrosis as a value greater than 10 Kpa, and the existence of cirrhosis as a value greater than 14 Kpa were analyzed using SPSS version 20 software. Results: Out of 398 patients monitored for HBV, 60 cases met the inclusion criteria, i.e., a frequency of 15.07%. The mean age of the patients was 35.63 years, with extremes of 18 and 70 years. They were predominantly male, with a sex ratio of 3.2. Married patients accounted for 61.67% (n = 37). Jaundice was absent in 91.67% (n = 55). The circumstances of discovery of HBV were the routine health

关键词： Hepatic Elasticity Fibroscan Fibrosis Hepatitis B Niger

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

Numerical Study of the Vibrations of Beams with Variable Stiffness under Impulsive or Harmonic Loading

引用

World Journal of Engineering and Technology 2024年第2期12卷 401-425页

作者： Moussa Sali Fabien Kenmogne Jean Bertin Nkibeu abdou Njifenjou Laboratory of Materials Mechanics and Civil Engineering National Higher Polytechnic School of Maroua University of Maroua Maroua Cameroon Department of Civil Engineering Advanced Teachers Training College of the Technical Education University of Douala Douala Cameroon Laboratory Engineering Civil and Mechanics National Advanced School of Engineering University of Yaound&#233 1 Yaound&#233 Cameroon Laboratory of Energy Materials Modeling and Method (E3M) National Advanced School of Engineering University of Douala Douala Cameroon Laboratory of Mathematical Engineering and Information Systems National Advanced School of Engineering University of Yaound&#233 1 Yaound&#233 Cameroon

The behavior of beams with variable stiffness subjected to the action of variable loadings (impulse or harmonic) is analyzed in this paper using the successive approximation method. This successive approximation method is a technique for numerical integration of partial differential equations involving both the space and time, with well-known initial conditions on time and boundary conditions on the space. This technique, although having been applied to beams with constant stiffness, is new for the case of beams with variable stiffness, and it aims to use a quadratic parabola (in time) to approximate the solutions of the differential equations of dynamics. The spatial part is studied using the successive approximation method of the partial differential equations obtained, in order to transform them into a system of time-dependent ordinary differential equations. Thus, the integration algorithm using this technique is established and applied to examples of beams with variable stiffness, under variable loading, and with the different cases of supports chosen in the literature. We have thus calculated the cases of beams with constant or variable rigidity with articulated or embedded supports, subjected to the action of an instantaneous impulse and harmonic loads distributed over its entire length. In order to justify the robustness of the successive approximation method considered in this work, an example of an articulated beam with constant stiffness subjected to a distributed harmonic load was calculated analytically, and the results obtained compared to those found numerically for various steps (spatial h and temporal τ ¯ ) of calculus, and the difference between the values obtained by the two methods was small. For example for ( h=1/8 , τ ¯ =1/ 64 ), the difference between these values is 17%.

关键词： Successive Approximations Method Direct Integration Differential Equations Beams of Variable Stiffness Quadratic Parabola Impulse and Harmonic Loads

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

A Comparative Analysis of Vetiver and Typha in Ecological Wastewater Treatment Using a Horizontal Flow Constructed Wetlands in Rural Setting

引用

Journal of Agricultural Chemistry and Environment 2024年第1期13卷 67-82页

作者： Falilou Coundoul abdou Khafor Ndiaye abdoulaye Deme Antonina Torrens Armegnol Polytechnic Institute of Saint-Louis (IPSL) Gaston Berger University Saint-Louis Senegal UFR of Applied Sciences and Technology Gaston Berger University Saint-Louis Senegal Department of Biology Healthcare and Environment Faculty of Pharmacy and Food Sciences University of Barcelona Barcelona Spain

This study presents an assessment of wastewater ecological treatment processes utilizing a horizontal flow bio-reactor at the Ndiebene Gandiol 1 school. It primarily aims to juxtapose the filtration efficacy of two distinct vegetative cells, Vetiver and Typha, in the pursuit of sustainable wastewater management strategies for rural scholastic institutions. A synergistic approach was employed, integrating on-site surveys for site-specific insights and laboratory analyses to quantify the pollutant loads pre- and post-treatment. Our findings indicate that both Vetiver and Typha-infused filter beds significantly reduce most contaminants, with particular success in diminishing chemical oxygen demand (COD) and biological oxygen demand (BOD5). Vetiver was notable for its superior reduction of COD, achieving an average effluent concentration of 74 mg/L, in contrast to Typha’s 155 mg/L. Conversely, Typha excelled in suspended solids removal, registering 1 mg/L against Vetiver’s 3 mg/L. While both systems notably surpassed the target metrics across several indicators, including fecal coliform reduction, our results pinpoint the need for refinement in phosphate remediation. Conclusively, the study underscores the efficacy of both Vetiver and Typha systems in rural wastewater treatment contexts, with their integrative application potentially paving the way for enhanced system robustness and efficiency. The outcomes herein highlight the imperative for continued research to further hone these ecological treatment modalities, especially concerning phosphate elimination.

关键词： Hydraulics Water Treatment Agricultural Irrigation Sanitation Engineering Environment

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

Design and Sizing of an Ecological Wastewater Treatment System in a School Environment: A Case Study of Ndiebene Gandiol 1 School

引用

Journal of Water Resource and Protection 2024年第1期16卷 41-57页

作者： Falilou Coundoul abdou Khafor Ndiaye abdoulaye Deme David de la Varga Polytechnic Institute of Saint-Louis Gaston Berger University Saint-Louis Senegal Applied Sciences and Technologies Training and Research Unit Gaston Berger University Saint-Louis Senegal Laboratory of Chemical-Physical and Chemical Engineering I University of A Coru&ntildea A Coru&ntildea Spain

The primary objective of this study was to design and size a sustainable sanitation solution for the Ndiebene Gandiol 1 school located in the eponymous commune in northern Senegal. Field investigations led to the collection of wastewater samples. Their analysis revealed specific pollutant loads, including loads of BOD5 3.6966 kgO2/day and COD of 12.8775 kgO2/day, which were central to the design phase. Following a rigorous assessment of the existing sanitation infrastructure, constructed wetland (CWs) emerged as the most appropriate ecological solution. This system, valued for its ability to effectively remove contaminants, was tailored to the specific needs of the site. Consequently, the final design of the filter extends over 217.16 m2, divided into two cells of 108.58 m2 each, with dimensions of 12.77 m in length and 8.5 m in width. The depth of the filtering medium is approximately 0.60 m, meeting the standards while ensuring maximized purification. Typha, an indigenous and prolific plant known for its purification abilities, was selected as the filtering agent. Concurrently, non-crushed gravel was chosen for its proven filtration capacity. This study is the result of a combination of scientific rigor and design expertise. It provides a holistic view of sanitation for Ndiebene Gandiol. The technical specifications and dimensions of the constructed wetland filter embody an approach that marries indepth analysis and practical application, all aimed at delivering an effective and long-lasting solution to the local sanitation challenges. By integrating precise scientific data with sanitation design expertise, this study delivers a holistic solution for Ndiebene Gandiol. The detailed dimensions and specifications of the constructed wetland filter reflect a methodology that combines meticulous analysis with practical adaptation, aiming to provide an effective and sustainable response to the challenges of rural and school san

关键词： Water Review Hydraulic Engineering Water Treatment Agricultural Irrigation Sanitation Engineering Environment

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：