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Analysis of the Trend in the Consumption of Psychoactive Substances in Senegal from 2018 to 2022
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作者 Jean Augustin Diégane Tine Kadidiatou Diarra +1 位作者 Amadou Ibra Diallo Ibrahima Seck 《Open Journal of Epidemiology》 2025年第1期36-49,共14页
Purpose: The aim of the study was to investigate the profile of psychoactive substance users in Senegal from 2018 to 2022. Methodology: These were retrospective descriptive studies of patient consultation and hospital... Purpose: The aim of the study was to investigate the profile of psychoactive substance users in Senegal from 2018 to 2022. Methodology: These were retrospective descriptive studies of patient consultation and hospitalization records in the 17 psychiatric and addictology care centers in Senegal from 2018 to 2022. This was an exhaustive survey. All usable consultation and hospitalization registers were included in the study. Non-usable consultation and hospitalization registers were not included. Data were collected from January 1 to December 31 of each respective year. Data were cleaned using Excel before analysis. R software version 4.3.3 was used for analysis. Results: Between 2018 and 2022, 26,029 patients were registered in mental health facilities in Senegal. The Fann Psychiatry Department (CHNU Fann) admitted 23.2% of patients and the Thiaroye National Psychiatric Hospital registered 17.6% of drug users. For the year 2019, we found 8259 and in 2021, we had 6607 patients. The male gender was more represented with 14,750 patients, or 90.9%. The age group [25 - 34] was the majority (7013 patients or 39.5%). The majority of patients (17,425 patients, or 84.6%) were followed as outpatients. The drugs were mainly inhaled (96.7%). The most consumed substance was cannabis with 8847 patients, or 54.2%. Withdrawal was the main reason for treatment, 11,614 patients, or 85.7%. Conclusion: In the light of the results of our study, we can say that the use of psychoactive substances is a real public health and development problem in Senegal. The peaks in psychoactive substance consumption preceded the peaks in psychiatric care centers, so we need to promote information, education and communication on the harmful effects of psychoactive substance consumption among the population in general and young people in particular, in order to safeguard the country’s development. 展开更多
关键词 CONSUMPTION Substance Psychoactive DRUGS Senegal
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The Role of Music Therapy in Supporting Intellectually Disabled Youth in Senegal
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作者 Raymond Birane Youm Kadidiatou Diarra +1 位作者 Mathias Pouye Jean Augustin Diégane Tine 《Health》 2024年第5期521-534,共14页
Introduction: Music therapy is a practice for helping and supporting people with intellectual and relational difficulties. This study illustrated the benefits of music therapy for young people living with intellectual... Introduction: Music therapy is a practice for helping and supporting people with intellectual and relational difficulties. This study illustrated the benefits of music therapy for young people living with intellectual disabilities (YLID) in an African context. Methodology: This study investigated six young individuals with intellectual disabilities who had undergone three years of music therapy. They were participants in the inclusive non-academic training program at the National School of Arts in Dakar from 2017 to 2019. Data collection utilized individual interviews with the youths, evaluation grids from teachers and psychiatrists. Guardians provided informed consent along with the assent of the young participants. Results: The six young were aged between 18 and 30 years old, with an average age of 24.6 years. Four of the YLID were male. Three young people with intellectual disabilities had delayed psychomotor development. Observations revealed the beneficial influence of music therapy on the health and well-being of young individuals. Music played a role in alleviating stress and anxiety among youth with intellectual disabilities (YLID), enhancing their mood and mental health. It assisted in navigating challenging situations and heightened alertness among YLID. Additionally, music therapy contributed to improvements in dyslexia, fine and gross motor skills, and memory development among intellectually disabled youth, ultimately facilitating their integration into society. Conclusion: In light of our results, music therapy makes a major contribution to the empowerment of YLID. Engaging in musical activities helps young people connect with others through instrumental expression and a sense of accomplishment. By facilitating music therapy, it becomes possible to combat discrimination and stigmatization, thus promoting the social inclusion of intellectually disabled youth. Therefore, it is important to promote music therapy in Senegal to meet the needs of YLID. 展开更多
关键词 Music Therapy YOUNG Intellectual Disabilities Senegal
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基于全介质缺陷纳米四聚体超结构的高灵敏度折射率传感器
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作者 孙庆贺 范鑫烨 +4 位作者 房文敬 曹爽爽 王丹丹 牛慧娟 陶继方 《聊城大学学报(自然科学版)》 2024年第5期68-75,122,共9页
本文提出并研究了一种具有高灵敏度的全介质纳米四聚体超结构。该结构由位于SiO 2衬底上的缺陷型圆柱周期性阵列排布而成。利用时域有限差分(FDTD)方法对非对称全介质超结构的透射谱和电磁场分布进行了数值分析。基于连续体中的束缚态(B... 本文提出并研究了一种具有高灵敏度的全介质纳米四聚体超结构。该结构由位于SiO 2衬底上的缺陷型圆柱周期性阵列排布而成。利用时域有限差分(FDTD)方法对非对称全介质超结构的透射谱和电磁场分布进行了数值分析。基于连续体中的束缚态(BIC)理论,通过引入了平面内圆柱型缺陷来打破对称性,在近红外波段激发了多重Fano共振,最大Q因子达到1277,调制深度接近100%。结合电磁场分布特性,分析了五个Fano共振峰的共振模式,分别为TD(环形偶极子)、MQ(磁四极子)、MD(磁偶极子)、MDs和TD。仿真结果表明,该结构具有良好的传感性能,灵敏度为826 nm/RIU,品质因数(FOM)达到898 RIU^(-1)。所提出的结构由于其高灵敏度和高Q因子,因此可广泛应用于环境传感、生物传感和非线性光学等领域。 展开更多
关键词 全介质 超结构 高灵敏度 基于连续体中的束缚态
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Influence of the Nature of the Incoming Sludge on the Performance of a Vertical Flow Reed Beds in Dakar-Senegal
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作者 Elhadji Mamadou Sonko Diomaye Dieng +1 位作者 Maïmouna Lo Cheikh Diop 《Journal of Water Resource and Protection》 CAS 2024年第6期429-449,共21页
This work investigates the influence of the type sludge on drainage, plant development, purification performances and biosolids quality. Drainage properties were measured through the frequency of clogging, the percent... This work investigates the influence of the type sludge on drainage, plant development, purification performances and biosolids quality. Drainage properties were measured through the frequency of clogging, the percentage of leachate recovered and the dryness of accumulated sludge. Plant development was measured through the density, the height and the stem diameter. Purification performance was evaluated from the reduction rate. Biosolids quality was measured after 3 months of maturation. The results show that the clogging frequencies were 9.5%;0% and 3.7%;the volume of leachate recovered was 42.2%;20.4% and 24.7% and, the dryness was 33.4%;61.1% and 52.4% for FS-ST, FS-STT and SS respectively. Plants densities were about, with densities 197.1, 171.3 and 178.3 plants/m2 in beds fed respectively with FS-ST, FS-STT and SS. Despite the high removal rates, the concentrations of pollutants in the leachates are above the Senegalese standard NS 05-061 for discharge into the environment. The biosolids are all mature with C/N and NH4+/NO3?ratios lower than 12 and 1 respectively. The biosolids are also rich in organic and mineral elements. The concentrations of Ascaris eggs are higher than the WHO recommendations. These biosolids should be stored for additional time or composted. 展开更多
关键词 Biosolid Quality Dewatering Performance Planted Drying Beds Purification Performance Sludge Type
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Restoration or Rehabilitation of the Faleme River Affected by Mining Activities: What Methods?
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作者 Mor Diop Ibrahima Mall +3 位作者 Elhadji Mamadou Sonko Tidiane Diop Birane Niane Cheikh Mbow 《Journal of Water Resource and Protection》 CAS 2024年第4期233-263,共31页
The Faleme River, a West Africa long transboundary stream (625 km) and abundant flow (>1100 million m<sup>3</sup>) is affected by severe erosion because of mining activities that takes place throughout ... The Faleme River, a West Africa long transboundary stream (625 km) and abundant flow (>1100 million m<sup>3</sup>) is affected by severe erosion because of mining activities that takes place throughout the riverbed. To preserve this important watercourse and ensure the sustainability of its services, selecting and implementing appropriates restorations techniques is vital. In this context, the purpose of this paper was to present an overview of the actions and techniques that can be implemented for the restoration/rehabilitation of the Faleme. The methodological approach includes field investigation, water sampling, literature review with cases studies and SWOT analysis of the four methods presented: river dredging, constructed wetlands, floating treatment wetlands and chemical precipitation (coagulation and flocculation). The study confirmed the pollution of the river by suspended solids (TSS > 1100 mg/L) and heavy metals such as iron, zinc, aluminium, and arsenic. For the restoration methods, it was illustrated through description of their mode of operation and through some case studies presented, that all the four methods have proven their effectiveness in treating rivers but have differences in their costs, their sustainability (detrimental to living organisms or causing a second pollution) and social acceptance. They also have weaknesses and issues that must be addressed to ensure success of rehabilitation. For the case of the Faleme river, after analysis, floating treatment wetlands are highly recommended for their low cost, good removal efficiency if the vulnerability of the raft and buoyancy to strong waves and flow is under control. 展开更多
关键词 Faleme River River Restoration Constructed Wetlands DREDGING Floating Treatment Wetlands COAGULATION-FLOCCULATION
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Frailty in People Living with Human Immunodeficiency Virus Aged 50 Years and Older: Prevalence and Predictors
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作者 Alassane Ndiaye Ndèye Fatou Ngom +8 位作者 Kiné Ndiaye Assiétou Gaye Elhadji Bara Diop Ahmadou Mboup Houlèye Saou Bessoume Sy Ababacar Niang Betty Fall Mame Awa Faye 《World Journal of AIDS》 2024年第1期18-34,共17页
Introduction: Life expectancy improvement for people living with Human Immunodeficiency Virus (HIV) is coming up against the problems associated with aging and chronic diseases. Frailty is a concern affecting a growin... Introduction: Life expectancy improvement for people living with Human Immunodeficiency Virus (HIV) is coming up against the problems associated with aging and chronic diseases. Frailty is a concern affecting a growing number of patients, particularly the elderly in this population. Our study aimed to determine the prevalence of frailty and its predictors on people living with HIV aged 50 years and older followed at the Outpatient Treatment Clinic (CTA) in Dakar. Methodology: We conducted a cross-sectional study of descriptive and analytic purposes ranging from November 2022 to August 2023, in CTA, Dakar (Senegal). We included people living with HIV aged 50 years and older under antiretroviral therapy for at least 6 months (≥6 months). Frailty was considered according to Fried criteria with a score ≥3. To identify the predictors of frailty, we performed a multivariate logistic regression analysis using STATA software version 18. Results: We included 199 patients. The median age at the moment of the study was 58 years old [50 - 91] with a sex ratio (M/F) of 0.58. The most representative age group was that of [50 - 59] years (59.3%). HIV-1 profile was most common in 89.45%. The median duration under antiretroviral therapy was 180 months [6 - 284] and 94% of patients received a Tenofovir Disoproxil Fumarate (TDF)-containing regimen with 43% of them for at least 10 years. Viral load was undetectable (≤40 copies/ml) in 98% of cases. WHO Stage III was more common at inclusion and 55.78% had nadir TCD4+ Lymphocyte counts Conclusion: Our study confirms the high prevalence of frailty among older people living with HIV. Its prevention should consider the management of comorbidities and the implementation of non-pharmacological interventions such as nutrition. 展开更多
关键词 FRAILTY HIV SENIOR DAKAR
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Epidemiological Aspects of Burnout Among Physicians at the University Hospital Centers (CHU) of Dakar, Senegal
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作者 El Hadji Makhtar Ba Bocar Baïla Diédhiou +8 位作者 Sokhna Seck Momar Camara Fatoumata Ba Cinthia Déo-Gracias Sènami Houenassou Jean Augustin Diégane Tine Khadim Fall Mbayang Ndiaye Mor Ndiaye Aida Sylla 《Open Journal of Psychiatry》 2024年第S2期528-540,共13页
Objectives: To assess the socio-professional determinants of burnout among the medical staff of Dakar University Hospitals. The aim was to propose effective means of prevention. Material and Methods: This was a cross-... Objectives: To assess the socio-professional determinants of burnout among the medical staff of Dakar University Hospitals. The aim was to propose effective means of prevention. Material and Methods: This was a cross-sectional, descriptive, and analytical study of physicians in permanent contact with patients at the Fann and Aristide Le Dantec teaching hospitals in Dakar, Senegal. Results: A total of 159 doctors were included in the study, with a sex ratio (M/F) of 1.3 in favor of men. The prevalence of burnout was 91.8%. Burnout was significantly associated (p Conclusion: Burnout is a threat to doctors at university hospitals in Senegal. It has several determinants linked above all to work organization. It is essential to set up psychological support units in hospitals and integrate occupational medicine into various organizational processes. 展开更多
关键词 Burn Out PHYSICIANS Work Organization Mental Health Senegal
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某陶瓷洁具生产企业职业病危害现状评价 被引量:1
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作者 林英钊 陈日暖 +1 位作者 梁泳梅 廖明亮 《中国卫生工程学》 CAS 2019年第3期329-332,共4页
目的识别、分析与评价某生产项目可能产生的职业病危害因素及危害程度,确定建设项目的职业病危害类别,为制定职业病危害的预防与控制提供有效的对策。方法依据国家相关标准,采用工程分析法、职业卫生学现场调查、职业病危害因素检测、... 目的识别、分析与评价某生产项目可能产生的职业病危害因素及危害程度,确定建设项目的职业病危害类别,为制定职业病危害的预防与控制提供有效的对策。方法依据国家相关标准,采用工程分析法、职业卫生学现场调查、职业病危害因素检测、职业健康检查等相结合的方法进行现状评价。结果该企业在生产过程中产生的主要职业病危害因素包括粉尘、噪声、高温、一氧化碳、氮氧化物等。检测结果显示,64.1%的粉尘检测点、15.9%的噪声检测点、78.1%的高温检测点超过职业接触限值的要求。职业健康检查检出1名疑似尘肺病和20名职业禁忌证人员。结论该企业属于严重的职业病危害风险企业,作业人员发生尘肺、听力损伤和中暑风险较高,需采取一系列有效的控制措施进行整改。 展开更多
关键词 陶瓷洁具生产企业 职业病危害 现状评价
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基于棱镜二次聚光的高倍聚光模组聚光特性与三结电池光谱响应匹配与优化
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作者 郭银 舒碧芬 +4 位作者 汪婧 杨晴川 江景祥 黄妍 周正龙 《物理学报》 SCIE EI CAS CSCD 北大核心 2018年第10期253-263,共11页
目前Ⅲ-Ⅴ多结高倍聚光(HCPV)太阳电池实验室效率记录已高达46%,而相对应的模组效率与之相差仍较大,其中由于模组中聚光非理想性引起的损失就高达20%.本文通过建立光学模型和非均匀光照的三维电池电路网络模型,以Ⅲ-Ⅴ族三结电池为例,... 目前Ⅲ-Ⅴ多结高倍聚光(HCPV)太阳电池实验室效率记录已高达46%,而相对应的模组效率与之相差仍较大,其中由于模组中聚光非理想性引起的损失就高达20%.本文通过建立光学模型和非均匀光照的三维电池电路网络模型,以Ⅲ-Ⅴ族三结电池为例,研究了菲涅耳透镜一次聚光、棱镜二次聚光的HCPV模组的聚光特性和光电特性.结果发现.由于光线非平行入射和-菲涅耳透镜的色散现象,使得沿光轴方向短、中、长波段聚光发散及聚光不均匀,从而造成了三结电池的上、中、下各子电池光谱响应失配损失,模组光电转换性能下降;进一步,通过采用棱镜二次聚光,能较好地改善聚光和温度均匀性;通过对光轴方向上短、中、长波段的聚光特性与三结电池光谱响应匹配优化,使得模组输出功率提高10%以上.模拟结果己得到实验验证. 展开更多
关键词 高倍聚光光伏模组 Ⅲ-Ⅴ三结电池 二次聚光棱镜 非均匀性
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基于表面亲水改性的微通道高热流流动沸腾换热性能优化 被引量:7
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作者 喻祖康 舒碧芬 +1 位作者 黄妍 江景祥 《热能动力工程》 CAS CSCD 北大核心 2020年第12期94-100,共7页
制备了接触角为0°~70°的3种不同润湿性表面微通道,以R-134a为工质进行了可视化流动沸腾实验,研究不同进口干度、热流密度下,表面润湿性对微通道流态与传热特性的影响,并通过表面微观结构和流态观测对其潜在流动换热特性机理... 制备了接触角为0°~70°的3种不同润湿性表面微通道,以R-134a为工质进行了可视化流动沸腾实验,研究不同进口干度、热流密度下,表面润湿性对微通道流态与传热特性的影响,并通过表面微观结构和流态观测对其潜在流动换热特性机理进行分析。实验结果表明:表面亲水改性能显著提高沸腾流动微通道的局部散热性能和散热均匀性,平均散热性能得到显著提高。在较低热流密度下,超亲水表面平均换热系数比普通光滑表面最大提高了约64%,而亲水表面平均换热系数比普通光滑表面最大提高了27%;在高热流密度下,超亲水表面换热系数比普通光滑表面最大提高了约80%,而亲水表面平均换热系数比普通光滑表面最大提高了约50%。通过可视化观测发现,高热流高干度下,普通光滑表面微通道内壁面发生了严重干涸现象,导致传热系数快速下降,而在超亲水表面并未发生干涸,表明通过超亲水表面改性能显著优化高热流微散热器散热,有效防止干烧导致的器件寿命下降。 展开更多
关键词 微通道 流动沸腾传热 微结构 表面改性
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面向智能系统的一体化实践教学平台与案例库 被引量:2
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作者 仲维 王洁 +2 位作者 叶昕辰 刘日升 樊鑫 《实验室科学》 2022年第5期35-37,40,共4页
现代人工智能技术迅速发展并得到大规模应用,然而高校相关课程的实验教学却相对薄弱,无法培养以实践应用为导向的软硬件结合的人工智能工程师人才。探索智能系统专业方向课程体系的一体化综合教学方案,合理规划并建设一体化智能硬件实... 现代人工智能技术迅速发展并得到大规模应用,然而高校相关课程的实验教学却相对薄弱,无法培养以实践应用为导向的软硬件结合的人工智能工程师人才。探索智能系统专业方向课程体系的一体化综合教学方案,合理规划并建设一体化智能硬件实践教学平台与研究型教学课程案例库,紧密结合各门课程教学内容与实践环节,充分锻炼学生动手能力和系统级设计能力,可为培养人工智能新形势下的复合型应用实践精英人才奠定基础。 展开更多
关键词 人工智能 实践教学 一体化硬件平台 案例库
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高海拔条件下轻质油燃烧器出口配风结构适配性研究 被引量:1
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作者 绳以健 刘赫 +4 位作者 崔运静 束奇 谢凯 张松 王宗明 《工业加热》 CAS 2022年第10期1-4,13,共5页
一般燃烧器用于高海拔条件会出现一系列燃烧问题,为了对燃烧器配风结构进行缩短火焰长度的适应性改进,本文设计了旋流叶片式和平板开槽式两类稳焰盘结构,数值分析稳焰盘下游流场结构并进行比较,在低气压条件进行了裸烧试验,并对原燃烧... 一般燃烧器用于高海拔条件会出现一系列燃烧问题,为了对燃烧器配风结构进行缩短火焰长度的适应性改进,本文设计了旋流叶片式和平板开槽式两类稳焰盘结构,数值分析稳焰盘下游流场结构并进行比较,在低气压条件进行了裸烧试验,并对原燃烧筒直径进行适配分析。研究结果表明:额定工况下轻油燃烧器的出口流场雷诺数大于临界雷诺数10^(4),处于第二自模化区内,因此可用冷态流场模化热态燃烧场;根据稳焰盘周围流场结构数值分析结果,认为螺旋扭曲叶片倾角β越小,回流气量越大,倾斜曲面叶片对气流有明显的旋流引导作用;与旋流叶片式稳焰盘相比,平板开槽式稳焰盘结构改动小、所形成的回流区更大、裸烧火焰更短、不易积碳,更加适合高海拔条件使用;将燃烧筒直径从78 mm增大到90 mm,可使旋流气流充分发展,再聚拢生成较大回流区。该结论为高海拔条件下燃烧器配风器适配设计改进提供实际参考。 展开更多
关键词 燃烧器 旋流稳焰盘 回流区 燃烧筒 高海拔条件
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城市片区中能源规划的碳减排效益研究--以荆门绿色生态科技产业城为例 被引量:2
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作者 李芬 乔雅君 +2 位作者 康靖 杨世琦 Gerhard Stryi-Hipp 《建设科技》 2020年第17期30-36,45,共8页
实现城市能源系统向可持续发展的低碳形式转变,将会对缓解气候变化越来越重要。若对城市整体直接进行能源结构优化,其成本高昂、实施难度巨大;而从城市片区级别开展多能源系统优化,更容易取得阶段性进展。本研究选取一个能源依赖型城市... 实现城市能源系统向可持续发展的低碳形式转变,将会对缓解气候变化越来越重要。若对城市整体直接进行能源结构优化,其成本高昂、实施难度巨大;而从城市片区级别开展多能源系统优化,更容易取得阶段性进展。本研究选取一个能源依赖型城市中的新建城市片区作为研究案例。研究通过规划发展情景的部分假设,应用多能源耦合系统,对城市片区的能源系统优化路径进行探索。通过分析对比能源系统性能的环境效益和经济效益,研究为城市片区能源系统探索了潜在的节能减排与经济发展路径。能源系统在关于能耗、经济性和碳排放等方面可量化的信息,有助于规划决策者在实践中把控未来城市片区的供能用能方式。 展开更多
关键词 城市片区 绿色生态发展 能源规划 能源系统优化 碳减排效益
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Development and Application of Water Quality Index (WQI) for the Evaluation of the Physico-Chemical Quality of Groundwater in Gold Mining Areas of Southeastern Senegal
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作者 Mor Diop Ibrahima Mall +3 位作者 El Hadji Mamadou Sonko Tidiane Diop Liengsy Badji Cheikh Mbow 《Journal of Water Resource and Protection》 CAS 2023年第2期33-50,共18页
Water is the most essential requirement for life. It provides a variety of purposes such as a source of water supply for drinking, domestic and industrial use, irrigated agriculture, livestock, and mining activities. ... Water is the most essential requirement for life. It provides a variety of purposes such as a source of water supply for drinking, domestic and industrial use, irrigated agriculture, livestock, and mining activities. Evaluating the status of water quality from traditional approaches does not guarantee the whole overview of the water quality situation. Therefore, developing a tool that can convert multiple parameters data into information that is understandable by both technical and non-technical personnel is vital. In this context, the purpose of this paper was to develop, calculate, and apply a water quality index for assessing the suitability (for drinking purposes) of groundwater in the gold mining areas in south-eastern Senegal. The development of this index based on WHO water quality guidelines followed the five standards steps i.e., parameters selection, sub-index formation, parameters weighting and sub-index aggregation and evaluation. Finally, the WQI summarized twelve key water quality parameters into 05 simple terms (excellent, good, medium, poor, and very poor) which is more relevant for reporting to managers and the public in a consistent manner. Thus, it was observed in the study area, that the water quality indexes in artisanal and industrial mining areas are either poor or very poor while in the reference stations (where there are no mining activities) WQI are either good or excellent. This situation was attributed to the effects of mining activities in such zones which contribute to the pollution of groundwater with heavy metals, nitrates, and suspended solids. 展开更多
关键词 Water Quality Index GROUNDWATER Gold Mining POLLUTION Heavy Metals
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Efficacy and Safety Assessment of Antifungal Sequential Therapy from Micafungin to Liposomal Amphotericin B for Antibiotics-Refractory Febrile Neutropenia in Patients with Hematologic Malignancies
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作者 Kazunori Nakase Koji Oka +3 位作者 Keiki Kawakami Tetsuya Tsukada Shigehisa Tamaki Atsushi Fujieda 《Advances in Microbiology》 2023年第6期315-322,共8页
Invasive fungal infections are a major challenging problem in the management of febrile neutropenia (FN) in patients with hematologic malignancies. Liposomal amphotericin B (L-AmB) or micafungin (MCFG) has been widely... Invasive fungal infections are a major challenging problem in the management of febrile neutropenia (FN) in patients with hematologic malignancies. Liposomal amphotericin B (L-AmB) or micafungin (MCFG) has been widely used as a first-line empirical antifungal therapy for suspected fungal infection in such patients. However, there are several issues in patients receiving these agents: drug related toxicities for L-AmB and breakthrough fungal infections for MCFG. In order to make the best use of these 2 agents, we conducted a prospective study of sequential therapy from MCFG to L-AmB, and evaluated the efficacy and safety of this strategy in FN patients with hematologic malignancies. A total of 18 patients were enrolled, and 11 patients who fulfilled the protocol defined criteria were evaluated. Underlying diseases consisted of acute leukemia (n = 9), non-Hodgkin lymphoma (n = 1), and myelodysplastic syndrome (n = 1). Treatment success was achieved in 8 patients (72.7%). Drug-related adverse events occurred in 8 patients (72.7%). All of those adverse events except one case were below grade 2. Three patients required discontinuation of L-AmB. Although our empirical antifungal sequential therapy seems to be encouraging for antibiotics-refractory FN in patients with hematologic malignancies, further investigation in large-scale studies is warranted. 展开更多
关键词 Empirical Antifungal Therapy MICAFUNGIN Liposomal Amphotericin B Febrile Neutropenia Hematologic Malignancy
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Epidemiological, Clinical, Therapeutic and evolutionary Aspects of Children Living with HIV in Guédiawaye, Senegal
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作者 Jean Baptiste Niokhor Diouf Ndèye Marème Sougou +3 位作者 Cheikh Tidiane Tall Mariama Kane Louis Philippe Sarr Ousmane Ndiaye 《Open Journal of Pediatrics》 2021年第4期738-748,共11页
<strong>Introduction:</strong><span style="font-family:""><span style="font-family:Verdana;"> HIV infection in children is a major public health problem. The objective ... <strong>Introduction:</strong><span style="font-family:""><span style="font-family:Verdana;"> HIV infection in children is a major public health problem. The objective of this study carried out in the paediatric department of the Centre Hospitalier Roi Baudouin de Guédiawaye, was to evaluate the epidemiological, clinical, therapeutic and evolutionary aspects of a cohort of children with HIV over a 15-year period and to determine the factors associated with discontinuation of treatment and transition to second-line treatment. </span><b><span style="font-family:Verdana;">Patients and Methods: </span></b><span style="font-family:Verdana;">This was a descriptive and analytical cross-sectional study from August 2004 to December 2019 at the Centre Hospitalier Roi Baudouin de Guédiawaye. Through this study, age at diagnosis, current age, gender, orphan status, therapeutic aspects, status announcement and evolution were evaluated. A total of 129 patient records were studied over a 15-year period (2004-2019). HIV-positive children with profile I represented 93.8% and there was a male predominance with a sex ratio of 1.43. The current mean age of the children was 12.2 ± 4.5 and the median was 14 years. Fatherless and motherless children represented 24.0% and 20.2%, respectively, while both fatherless and motherless children represented 11.6%. The mean age at the start of ARV treatment was 7.6 ± 4.3 years and the median was 7.5 years. The mean age at the start of second-line treatment was 13.7 years with a standard deviation of 2.6 while the median was 13 years. AZT + 3TC + NVP was the most commonly used combination (29.5%) followed by TDF + FTC + NVP (26.2%). The mean age at treatment discontinuation was 13.3 ± 4.3 years while the median was 15 years. More than half of the children (57.0%) (N = 69) were aware of their status. Factors associated with discontinuation were gender (p value = 0.025 and OR = 3.2), orphan status (p value = 0.027 and OR = 3.0) and follow-up time greater than 10 years (p value = 0.013 and OR = 5.6). The mortality rate was 3.9%. Factors associated with transition to second-line treatment were year of inclusion (p value = 0.001 and OR = 15.6), age group (p value = 0.001 and OR = 19.2), orphan status (p value = 0.040 and OR = 2.6), treatment regimen (p value = 0.019 and OR = 5.7), duration of ARV treatment (p value < 0.001 and OR = 38.0) and announcement (p value = 0.002 and OR = 4.7). </span><b><span style="font-family:Verdana;">Conclusion </span></b><span style="font-family:Verdana;">The cohort of HIV-infected children followed up in Guédiawaye remains dominated by adolescents. Orphan status, announcement of status and duration of follow-up are associated with transition to second-line treatment and treatment discontinuation.</span></span> 展开更多
关键词 CHILDREN HIV Guédiawaye Senegal
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HRB400E钢筋耦合损伤后的硬化行为和残余性能研究
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作者 张春涛 刘航 +1 位作者 旷金鑫 安仁兵 《建筑结构学报》 北大核心 2025年第10期285-294,共10页
抗震结构中广泛应用的HRB400E钢在腐蚀、疲劳以及耦合损伤后的残余力学性能,对结构的安全性和耐久性评估有重要价值。通过对13组预腐蚀、疲劳及腐蚀-疲劳耦合作用的HRB400E钢筋进行静态拉伸试验,测试了不同损伤程度下HRB400E钢筋的断裂... 抗震结构中广泛应用的HRB400E钢在腐蚀、疲劳以及耦合损伤后的残余力学性能,对结构的安全性和耐久性评估有重要价值。通过对13组预腐蚀、疲劳及腐蚀-疲劳耦合作用的HRB400E钢筋进行静态拉伸试验,测试了不同损伤程度下HRB400E钢筋的断裂模式、后继屈服行为以及承载能力等力学特征。以初始流动应力为损伤评价指标,建立了多损伤非线性耦合的Hockett-Sherby硬化模型,并将理论模型预测结果与试验结果进行对比。结果表明:HRB400E钢筋在多种损伤后呈脆性断裂特征,断口位置具有随机性;腐蚀、疲劳及腐蚀-疲劳耦合作用对钢筋的弹性模量影响均较小,但会导致钢筋的屈服强度、抗拉强度和伸长率的降低,特别是腐蚀和疲劳共同作用时更为显著。所建立的硬化模型能够考虑腐蚀程度、疲劳应力水平、循环次数以及腐蚀-疲劳耦合作用对HRB400E钢筋硬化行为的影响,预测模型的计算结果与试验数据基本吻合,验证了所建立模型的有效性。 展开更多
关键词 HRB400E钢筋 腐蚀 疲劳 耦合损伤 硬化模型
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Q690高强钢疲劳损伤后力学性能试验研究 被引量:7
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作者 张春涛 朱泓杰 王汝恒 《建筑结构学报》 EI CAS CSCD 北大核心 2021年第4期177-184,共8页
服役结构材料疲劳损伤后的残余力学性能对结构可靠性的评估有着至关重要的作用。为此,对Q690高强钢经不同疲劳损伤后的残余力学性能进行了试验研究。根据Q690高强钢在不同疲劳荷载作用下的疲劳寿命,设定了3级疲劳荷载和9组损伤振动次数... 服役结构材料疲劳损伤后的残余力学性能对结构可靠性的评估有着至关重要的作用。为此,对Q690高强钢经不同疲劳损伤后的残余力学性能进行了试验研究。根据Q690高强钢在不同疲劳荷载作用下的疲劳寿命,设定了3级疲劳荷载和9组损伤振动次数,并将Q690高强钢试件在各疲劳荷载下进行不同次数的预损伤疲劳振动。然后,对这些具有不同疲劳损伤的试件进行静力拉伸试验,观察试件的断裂模式并获得应力-应变曲线,对比分析具有不同疲劳损伤试件的屈服强度、抗拉强度和伸长率等力学性参数的变化规律。结果表明:Q690高强钢经疲劳损伤后的断口位置和截面形貌均发生明显变化;疲劳损伤后Q690高强钢在静力拉伸作用下的应力-应变关系曲线均无屈服平台,拉伸过程中出现位移不变、拉力突然减小的卸载现象,造成应力-应变关系曲线出现振荡;Q690高强钢的弹性模量受疲劳损伤影响相对较小,但是屈服强度、抗拉强度、伸长率、屈服应变和极限应变却随疲劳损伤增加而减小。根据试验结果,建立了Q690高强钢力学性能参数与疲劳损伤之间的拟合公式,利用该公式可对具有不同疲劳损伤的Q690高强钢结构的力学性能进行有效评估。 展开更多
关键词 Q690高强钢 疲劳损伤 拉伸试验 力学性能 拟合公式
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高温自然冷却后Q345钢材疲劳性能试验研究 被引量:6
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作者 张春涛 金汉林 朱立 《建筑结构学报》 EI CAS CSCD 北大核心 2020年第10期78-85,共8页
为研究火灾后钢材承受机械振动、风致振动和车辆振动等动力荷载的疲劳性能,通过升温、自然冷却和疲劳试验,对室温和经历250~750℃高温自然冷却后的40个Q345钢材试样进行轴向拉伸疲劳性能试验研究。结果表明:不同高温自然冷却后Q345钢材... 为研究火灾后钢材承受机械振动、风致振动和车辆振动等动力荷载的疲劳性能,通过升温、自然冷却和疲劳试验,对室温和经历250~750℃高温自然冷却后的40个Q345钢材试样进行轴向拉伸疲劳性能试验研究。结果表明:不同高温自然冷却后Q345钢材疲劳断口的破坏特征存在明显差异,裂纹扩展区和瞬断区的面积随温度升高而发生变化;Q345钢材在室温或经高温自然冷却后的疲劳断口具有典型韧窝组织,受热温度不超过500℃时韧窝组织随温度升高而增多变密,受热温度为750℃时韧窝组织减少、变浅且大小分布不均匀,主要表现为具有撕裂痕迹的类解理破坏;经高温自然冷却后Q345钢材的疲劳寿命随着温度增加而呈先增加后减小的变化趋势,与常温下钢材的疲劳寿命相比,500℃以内时,疲劳寿命随温度升高而增加,最大增幅为277.18%,750℃时疲劳寿命下降了65.27%。根据试验结果,建立不同高温自然冷却后Q345钢材的概率S-N曲线模型,利用该模型可对火灾后Q345钢结构的疲劳性能进行有效评估。 展开更多
关键词 Q345钢材 高温自然冷却 拉伸疲劳试验 疲劳性能 概率S-N曲线
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