South East Asia

东南亚
  • 文章类型: Journal Article
    目的我们的研究旨在描述内源性眼内炎的临床特征,关注患者的人口统计学,感染源,微生物概况,临床结果,以及影响最终视觉结果的因素。方法回顾性分析2011年1月至2020年12月在马来西亚半岛东海岸的两家三级医院住院的60例内源性眼内炎患者的68只眼资料。分析包括评估患者年龄,性别,偏侧性,危险因素,感染起源,呈现和最终的视力,微生物结果,治疗反应,以及影响最终视觉结果的因素。结果患者队列的平均年龄为54.9±13.3岁。女性比男性更容易患内源性眼内炎(33,55.0%vs.27、45.0%)。27例患者(45.0%)出现左眼内源性眼内炎,而25名患者(41.7%)的右眼有这种病,8例患者(13.3%)有双侧受累.大多数患者有潜在的易感条件,以糖尿病为主(53,88.3%)。42例患者(70.0%)确定感染源,其中尿路感染占大多数(11,18.3%)。克雷伯菌属(14,22.7%)是主要病原体,与肝脓肿病例显著相关。在这个系列中,大多数患者的表现较差,最终视力低于3/60(56,82.4%和53,77.9%,分别)。36眼(52.9%)行玻璃体切除术,导致只有四只眼睛(11.11%)达到优于6/12的最终视力。呈现视敏度被确定为促成盲最终视觉结果的因素(r=0.707,p<0.001)。结论女性比男性更常受到内源性眼内炎的影响。克雷伯菌属是最常见的分离微生物,通常与肝脓肿有关。尿路感染是最常见的诱发因素。大多数患者的视力和最终视力都很差,其中视力不佳是失明视力结果的重要指标。
    Purpose Our study aimed to describe the clinical profile of endogenous endophthalmitis, focusing on patient demographics, infection sources, microbial profiles, clinical outcomes, and factors affecting the final visual outcome. Methods A retrospective review was performed on data from 68 eyes of 60 patients diagnosed with endogenous endophthalmitis and hospitalized in two tertiary hospitals on the East Coast of Peninsular Malaysia from January 2011 to December 2020. The analysis encompassed evaluating patient age, gender, laterality, risk factors, infection origins, presenting and final visual acuity, microbial results, treatment responses, and factors affecting final visual outcomes. Results The average age of the patient cohort was 54.9 ± 13.3 years. Females were more likely to have endogenous endophthalmitis than males (33, 55.0% vs. 27, 45.0%). Twenty-seven patients (45.0%) presented with endogenous endophthalmitis in the left eye, while 25 patients (41.7%) had it in the right eye, and eight patients (13.3%) had bilateral involvement. Most patients had underlying predisposing conditions, predominantly diabetes mellitus (53, 88.3%). Infection sources were identified in 42 patients (70.0%), out of which urinary tract infections account for the majority (11, 18.3%). Klebsiella species(14, 22.7%) were the leading pathogens and were significantly associated with liver abscess cases. In this series, the majority of patients had poor presenting and final visual acuity of worse than 3/60 (56, 82.4% and 53, 77.9%, respectively). Thirty-six eyes (52.9%) underwent vitrectomy, resulting in only four eyes (11.11%) achieving final visual acuity better than 6/12. Presenting visual acuity was identified as the factor contributing to the blind final visual outcome (r = 0.707, p < 0.001). Conclusion Females were found to be more commonly affected by endogenous endophthalmitis than males. Klebsiella species were the most commonly isolated microorganisms and were typically associated with liver abscesses. Urinary tract infection was the most common predisposing factor. A majority of the patients had poor presenting and final visual acuity, in which poor visual acuity is a significant indicator of blind visual outcomes.
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  • 文章类型: Journal Article
    背景:为了使医疗保健服务达到最佳效果,卫生系统必须具备足够的水平,我们必须确保针对医疗机构的人力资源的公平分配。我们进行了范围审查,以绘制印度卫生人力资源(HRH)的现状及其短缺的原因。
    方法:在各种电子数据库中进行了系统搜索,从最早的可用日期到2024年2月。我们对所有主要研究报告都采用了统一的分析框架,并采用了叙事范式中的“描述性分析”方法。在创建HRH问题图表后,进行了归纳主题分析,以根据相关主题将检索到的数据分类。
    结果:共检索到9675篇文献。最终数据分析包括88篇全文。30.6%的研究(n=27)解决了短缺问题,而69.3%的研究(n=61)解决了短缺问题的原因。有关短缺原因的数据的主题分析产生了五种与HRH相关的问题,例如HRH生产不足,工作不满意,人才外流,监管问题,缺乏培训,监测,以及导致印度HRH稀缺的评估。
    结论:印度一直存在人力资源的持续短缺和不公平分配,农村专家干部的短缺最为严重。如果要实现长期解决方案,卫生部门需要建立一个富有成效的招聘系统。必须解决征聘制度缓慢和零星的问题,以及医务干事工作不安全的问题,这反过来又影响了他们的其他就业福利,比如工资,养老金,以及多年服务的认可。
    BACKGROUND: For healthcare delivery to be optimally effective, health systems must possess adequate levels and we must ensure a fair distribution of human resources aimed at healthcare facilities. We conducted a scoping review to map the current state of human resources for health (HRH) in India and the reasons behind its shortage.
    METHODS: A systematic search was conducted in various electronic databases, from the earliest available date till February 2024. We applied a uniform analytical framework to all the primary research reports and adopted the \"descriptive-analytical\" method from the narrative paradigm. Inductive thematic analysis was conducted to arrange the retrieved data into categories based on related themes after creating a chart of HRH problems.
    RESULTS: A total of 9675 articles were retrieved for this review. 88 full texts were included for the final data analysis. The shortage was addressed in 30.6% studies (n = 27) whereas 69.3% of studies (n = 61) addressed reasons for the shortage. The thematic analysis of data regarding reasons for the shortage yielded five kinds of HRH-related problems such as inadequate HRH production, job dissatisfaction, brain drain, regulatory issues, and lack of training, monitoring, and evaluation that were causing a scarcity of HRH in India.
    CONCLUSIONS: There has been a persistent shortage and inequitable distribution of human resources in India with the rural expert cadres experiencing the most severe shortage. The health department needs to establish a productive recruitment system if long-term solutions are to be achieved. It is important to address the slow and sporadic nature of the recruitment system and the issue of job insecurity among medical officers, which in turn affects their other employment benefits, such as salary, pension, and recognition for the years of service.
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  • 文章类型: Journal Article
    COVID-19大流行极大地改变了个体的饮食模式。这项研究旨在调查COVID-19大流行期间斯里兰卡水果和蔬菜购买和消费的变化。
    一项在线横断面调查使用Google表格评估了水果和蔬菜消费和购买的自我报告变化。进行了Logistic回归分析,以评估进口水果消费量减少与家庭种植食物摄入量增加与社会人口统计学变量之间的关系。
    在3621名受访者中,分别有63.0%及43.3%报告从市场购买的进口及本地水果摄入量减少,分别。虽然整体蔬菜消费量有所下降,叶类蔬菜消费量增加了40.7%。青少年的进口水果摄入量显着减少,男性,居住在城市地区的受访者,employed,以及月收入较低的人。在被告中,48.9%的人表示增加了自己种植的水果或蔬菜的消费量。居住在科伦坡和农村地区的反应者更有可能报告较高的国产水果和蔬菜摄入量(OR2.021;95%CI,1.762-2.318,P<0.001)。居住在城市地区的就业男性不太可能报告摄入量增加(OR0.689;95%CI,0.574-0.827,P<0.001)。
    从市场上购买进口和本地水果的产品已经减少。尽管整体蔬菜消费量有所下降,叶类蔬菜的消费量有所增加。此外,国内种植的水果和蔬菜的消费量大幅增加。完善的食品分配计划在未来的流行病中至关重要,以促进健康饮食。
    UNASSIGNED: The COVID-19 pandemic has drastically altered the dietary patterns of individuals. This study aimed to investigate the changes in the purchase and consumption of fruit and vegetables in Sri Lanka during the COVID-19 pandemic.
    UNASSIGNED: An online cross-sectional survey assessed the self-reported changes in fruit and vegetable consumption and purchase using Google forms. Logistic regression analyses were performed to assess the association between decreased consumption of imported fruits and increased home-grown food intake with socio-demographic variables.
    UNASSIGNED: Among the 3621 survey respondents, 63.0% and 43.3% reported a decreased intake of imported and local fruits purchased from the market, respectively. Although the overall vegetable consumption has declined, the leafy vegetable consumption has increased by 40.7%. Imported fruit intake has significantly reduced among youngsters, males, respondents living in municipal areas, employed, and those with lower monthly incomes. Among the respondent, 48.9% declared an increased consumption of home-grown fruits or vegetables. Responders living away from Colombo and rural areas were more likely to report a higher intake of home-grown fruits and vegetables (OR 2.021; 95% CI, 1.762-2.318, P < 0.001). Employed males residing in municipal areas were less likely to report an increased intake (OR 0.689; 95% CI, 0.574-0.827, P < 0.001).
    UNASSIGNED: Purchase of imported and local fruits from the market has reduced. Although the overall vegetable consumption was decreased, there has been an increase in the consumption of leafy vegetables. Furthermore, consumption of home-grown fruits and vegetables has increased considerably. Well-established food distribution programs are essential in future pandemics to promote healthy eating.
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  • 文章类型: Journal Article
    背景:亚洲和西方间质性肺病(ILD)队列中描述了疾病行为和基因型的差异。在西方ILD队列中,短的白细胞端粒长度(LTL)与不良结局相关,但其在亚洲人群中的意义尚不清楚。我们旨在描述新加坡ILD患者短期LTL的负担和临床意义。
    方法:前瞻性招募在新加坡总医院诊断为ILD的患者,并与36名健康对照进行比较。主要结果是无移植存活。提取来自外周血的基因组DNA并使用定量聚合酶链反应测定(qPCR)测量LTL。
    结果:在165名患者中,37%有短LTL。短LTL合并肺纤维化和肺气肿(CPFE)患者的比例更高(n=21,34.4%vsn=16,15.4%;p<0.001)。短LTL患者在12-时生存率降低,24个月和36个月以及24个月的中位生存期(p<0.001),在调整吸烟后仍然显着,GAP阶段和放射性UIP模式(危险比(HR),2.74;95CI:1.46,5.11;p=0.002)。他们增加了与呼吸有关的死亡率和急性加重发生率。尽管基线肺功能相似,与正常LTL患者的-58.2(95%CI:82.9,-33.6)mL/年相比,短LTL患者的绝对用力肺活量(FVC)下降更快,为-105.3(95%CI:151.4,-59.1)mL/年(p<0.001).
    结论:在我们的新加坡ILD队列中,短LTL与死亡率增加和肺功能下降更快相关,其幅度与西方ILD队列相似。需要进一步的研究将LTL评估整合到临床实践中。
    BACKGROUND: Differences in disease behaviour and genotypes are described in Asian and Western interstitial lung disease (ILD) cohorts. Short leukocyte telomere length (LTL) correlates with poor outcomes in Western ILD cohorts but its significance in Asian populations is unknown. We aim to characterise the burden and clinical implications of short LTL in Singaporean ILD patients.
    METHODS: Patients diagnosed with ILD at Singapore General Hospital were prospectively recruited and compared against 36 healthy controls. The primary outcome was transplant-free survival. Genomic DNA from peripheral blood was extracted and LTL measured using quantitative polymerase chain reaction assay (qPCR).
    RESULTS: Amongst 165 patients, 37% had short LTL. There was a higher proportion of combined pulmonary fibrosis and emphysema (CPFE) patients with short LTL (n = 21, 34.4% vs n = 16, 15.4%; p < 0.001). Short LTL patients had reduced survival at 12-, 24- and 36-months and median survival of 24 months (p < 0.001) which remained significant following adjustment for smoking, GAP Stage and radiological UIP pattern (Hazard Ratio (HR), 2.74; 95%CI:1.46, 5.11; p = 0.002). They had increased respiratory-related mortality and acute exacerbation incidences. Despite similar baseline lung function, short LTL patients had a faster decline in absolute forced vital capacity (FVC) of -105.3 (95% CI: 151.4, -59.1) mL/year compared to -58.2 (95% CI: 82.9, -33.6) mL/year (p < 0.001) in normal LTL patients.
    CONCLUSIONS: Short LTL correlated with increased mortality and faster lung function decline in our Singaporean ILD cohort with a magnitude similar to that in Western ILD cohorts. Further research is needed to integrate LTL assessment into clinical practice.
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  • 文章类型: Journal Article
    虽然心理健康的重要性及其对整体健康和福祉的影响已得到广泛认可,在获得精神卫生服务方面仍然存在持续的障碍。在东南亚国家(SEA),这尤其令人沮丧,在获得精神卫生服务方面可能会受到进一步的污名化。由于尚未对此主题进行审查,本综述旨在概述SEA获得和利用精神卫生保健服务的障碍和促成因素.在商业生产和灰色文献来源中进行搜索。两名独立的审稿人筛选了结果。然后独立提取数据,然后整理和合成,使用健康信念模型(HMB)作为框架。12项研究纳入审查。在HBM下,障碍分为:耻辱,健康素养差,内化的原因,文化信仰,缺乏卫生专业人员的培训,服务质量,资源分布差。包括:社会支持,外展服务,结构性柱头,自我意识,资源和信息,可访问性和可负担性,以及对卫生专业人员的积极态度和信念。那些在SEA获得精神保健的人面临着复杂的障碍和很少的推动者。持续的污名化和明显缺乏资源构成了最大的挑战,对于农村地区和少数民族来说,这一点甚至更加明显。改善结构的多方面战略,进程,这些社区需要精神健康的结果。
    While the importance of mental health and its impact on overall health and well-being has been widely recognized, there continue to be ongoing barriers to accessing mental health services. This is particularly poignant in countries in Southeast Asia (SEA) where there may be further stigma in accessing mental health services. As no reviews have been undertaken on this topic, this review aims to outline the barriers and enablers to access and utilization of mental health care services in SEA. Searches were undertaken in commercially produced and gray literature sources. Two independent reviewers screened the results. The data were then independently extracted, which was then collated and synthesized, using the Health Belief Model (HMB) as a framework. Twelve studies were included in the review. Under the HBM, barriers were grouped into: stigma, poor health literacy, internalized reasons, cultural beliefs, lack of training of health professionals, quality of service, and poor distribution of resources. Enablers included: social support, outreach services, structural stigma, self-awareness, resources and information, accessibility and affordability, and positive attitudes and beliefs about health professionals. Those accessing mental health care in SEA are confronted by complex barriers and few enablers. Ongoing stigma and a distinct lack of resources pose the greatest challenges, which are even more amplified for those in rural areas and minority groups. A multifaceted strategy that improves the structures, processes, and outcomes of mental health is required within these communities.
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  • 文章类型: Journal Article
    本研究探讨了DREAM方法在三所东南亚大学课程评估中的应用,旨在将可持续性和可持续发展目标(SDG)嵌入信息和通信技术(ICT)启用的多个学科中。使用了内容和主题分析的混合方法,这与诊断的基础哲学相一致,Reviewing/Reflecting,解释,评估,管理(DREAM)方法。DREAM方法集成了五个过程,从诊断开始,回顾/反思,解释,评估,and,最后,管理。结果表明,合并语义和潜在主题有助于发现学生叙事传达的信息,并为关注数据的表面和明确含义以及理论构建和政策制定提供了空间。他们还展示了DREAM方法在构建新知识并为教师教育工作者和其他学术教学人员提供有意义的解释和建议方面的有效性,以及高等教育机构的决策者和规划者。
    This study explores the application of the DREAM methodology for course assessment in three South East Asian universities aiming to embed sustainability and sustainable development goals (SDGs) in multiple academic disciplines enabled by information and communication technologies (ICTs). A mixing of content and thematic analysis was used, which aligns with the underpinning philosophy of the Diagnosing, Reviewing/Reflecting, Explaining, Assessing, Managing (DREAM) methodology. The DREAM methodology integrates five processes, starting from diagnosing, to reviewing/reflecting, explaining, assessing, and, finally, managing. Results show that merging semantic and latent themes has contributed to uncovering what messages students\' narratives convey and provided a space for focusing both on the surface and explicit meanings of the data as well as on theory building and policy making. They also show the effectiveness of the DREAM methodology in constructing new knowledge and generating meaningful interpretations and suggestions to teacher educators and other academic teaching staff, as well as higher education institutions\' policymakers and planners.
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  • 文章类型: Journal Article
    背景:在限制性背景下,获得代表性的流产发生率估计值具有挑战性。虽然在这样的环境中越来越多地使用红颜知己方法来收集这些数据,这种方法通常有几种偏见。Further,研究人员实施该方法和评估/调整潜在偏见的方式存在显著差异,限制现有估计的可比性和解释。这项研究提出了一种分析知己方法数据的标准化方法,从以前发表的研究中得出可比较的流产发生率估计值,并为将来的知己方法研究报告偏倚评估和调整提供建议标准.
    方法:我们使用了科特迪瓦以前应用的红颜知己方法的数据,埃塞俄比亚,加纳,Java(印度尼西亚),尼日利亚,乌干达,拉贾斯坦邦(印度)。我们估计了每种情况下知己一年的人工流产发生率,尝试调整选择,以标准化的方式报告和传播偏差。
    结果:在每个设置中,大多数的基本知己方法的假设被违反。与其他已发表的方法相比,使用自我报告的流产调整传输偏差始终产生最高的发生率估计值。分析决策和偏倚评估的差异导致我们的标准化分析得出的发病率估计与最初发表的比率相差很大。
    结论:我们建议未来的研究清楚地说明评估的偏见,如果违反了相关假设,以及如何调整违规行为。这将提高红颜知己方法估计在国家一级决策中的实用性,并作为基于全球或区域模型的堕胎估计的投入。
    Obtaining representative abortion incidence estimates is challenging in restrictive contexts. While the confidante method has been increasingly used to collect this data in such settings, there are several biases commonly associated with this method. Further, there are significant variations in how researchers have implemented the method and assessed/adjusted for potential biases, limiting the comparability and interpretation of existing estimates. This study presents a standardized approach to analyzing confidante method data, generates comparable abortion incidence estimates from previously published studies and recommends standards for reporting bias assessments and adjustments for future confidante method studies.
    We used data from previous applications of the confidante method in Côte d\'Ivoire, Ethiopia, Ghana, Java (Indonesia), Nigeria, Uganda, and Rajasthan (India). We estimated one-year induced abortion incidence rates for confidantes in each context, attempting to adjust for selection, reporting and transmission bias in a standardized manner.
    In each setting, majority of the foundational confidante method assumptions were violated. Adjusting for transmission bias using self-reported abortions consistently yielded the highest incidence estimates compared with other published approaches. Differences in analytic decisions and bias assessments resulted in the incidence estimates from our standardized analysis varying widely from originally published rates.
    We recommend that future studies clearly state which biases were assessed, if associated assumptions were violated, and how violations were adjusted for. This will improve the utility of confidante method estimates for national-level decision making and as inputs for global or regional model-based estimates of abortion.
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  • 文章类型: Journal Article
    背景:治疗性血浆置换(TPE)在东南亚地区发挥了重要作用。这项研究调查了在该地区进行TPE的挑战。
    方法:2021年1月对来自7个国家的15名东南亚治疗性血浆置换联盟(SEATPEC)成员进行了问卷调查。它包括人口统计,TPE技术,适应症,挑战,定时,结果测量,并在每个当地中心进行实验室测试。
    结果:共纳入来自12个参与中心的15名神经科医师。他们通常进行五次TPE(100.0%),血浆体积为1至1.5(93.3%),和通过中心导管交换(100.0%)。视神经脊髓炎谱系障碍和重症肌无力的急性复发是最常见的适应症。他们使用生理盐水和5%白蛋白(60.0%)的组合作为替代液。大多数(66.7%)使用TPE作为类固醇难治性病例的附加治疗或作为严重发作的一线治疗。他们建议通过下一次发作的间隔时间来评估TPE的疗效,TPE后复发率,和TPE相关并发症。我们地区的主要挑战是费用,报销,和访问TPE。
    结论:尽管各国之间存在差异,所有人在方法上都有相似之处,适应症,定时,障碍,以及TPE对神经免疫疾病的挑战。区域合作对于确定减少未来获得TPE的这些障碍的战略至关重要。
    BACKGROUND: Therapeutic plasma exchange (TPE) for neuroimmunological disorders has played an important role in the Southeast Asian region. This study investigates the challenges of performing TPE within the region.
    METHODS: A questionnaire-based survey was conducted and launched to 15 South East Asian Therapeutic Plasma Exchange Consortium (SEATPEC) members from seven countries in January 2021. It included demographics, TPE techniques, indications, challenges, timing, outcome measurement, and access to laboratory testing in each local center.
    RESULTS: A total of 15 neurologists from 12 participating centers were included. They usually perform five sessions of TPE (100.0%), with 1 to 1.5 plasma volume (93.3%), and exchanges via the central catheter (100.0%). Acute relapses of neuromyelitis optica spectrum disorder and myasthenia gravis are the most common indications. They used a combination of normal saline and 5% albumin (60.0%) as replacement fluid. Most (66.7%) used TPE as an add-on treatment in steroid-refractory cases or as first-line treatment for severe attacks. They suggested assessing the TPE efficacy of TPE by the interval to the next attack, post-TPE relapse rates, and TPE-related complications. The major challenges within our region are expense, reimbursibility, and access to TPE.
    CONCLUSIONS: Although countrywise differences exist, all share similarities regarding methods, indications, timing, obstacles, and challenges of TPE for neuroimmunological conditions. Regional collaboration will be essential to identify strategies to reduce these barriers to access to TPE in the future.
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  • 文章类型: Journal Article
    目标:ConCoNgua是一个复杂的,从越南北部到英国石油公司七千年初的久坐觅食地点。先前的研究确定了钙化的棘球蚴囊肿,导致包虫病。与包虫病一致的溶骨性病变也存在于该个体和其他人中。在牧民中发现包虫病的频率很高,它在狩猎-采集者社区中的存在引发了关于耕种前人类与动物互动的问题。本文的目的是确定和描述ConCoNgua人类骨骼组合中包虫病的流行病学。
    方法:对一百五十五个个体进行了宏观评估。其中,八人接受了X光检查。使用来自临床文献的新阈值标准方案诊断包虫病,优先考虑寄生虫特有的病变。
    结果:22例(14.2%)患者出现与包虫病一致的溶骨性病变,影响肱骨远端,股骨近端和前臂,还有骨盆.7名接受X线检查(4.5%)的多房性囊性病变可强烈诊断为包虫病。所有可能的病例都有肱骨远端病变。其余的病变在宏观上与射线照相相同,被认为是可能的病例。
    结论:虽然包虫病以前已经在农业前社区发现,ConCoNgua的高患病率是非偶然的。我们建议野生犬科动物的存在以及野生水牛和鹿的管理增加了疾病传播的风险。这些发现进一步揭示了在东南亚采用农业之前生活千年的狩猎采集者的生存复杂性。
    Con Co Ngua is a complex, sedentary forager site from northern Vietnam dating to the early seventh millennium BP. Prior research identified a calcified Echinococcus granulosis cyst, which causes hydatid disease. Osteolytic lesions consistent with hydatid disease were also present in this individual and others. Hydatid disease is observed in high frequencies in pastoralists, and its presence in a hunter-gatherer community raises questions regarding human-animal interaction prior to farming. The objective of this article is to identify and describe the epidemiology of hydatid disease in the human skeletal assemblage at Con Co Ngua.
    One hundred and fifty-five individuals were macroscopically assessed for lesions. Of these, eight individuals were radiographed. Hydatid disease was diagnosed using a new threshold criteria protocol derived from clinical literature, which prioritizes lesions specific to the parasite.
    Twenty-two individuals (14.2%) presented with osteolytic lesions consistent with hydatid disease, affecting the distal humerus, proximal femur and forearm, and pelvis. Seven individuals radiographed (4.5%) had multilocular cystic lesions strongly diagnostic for hydatid disease. All probable cases had lesions of the distal humerus. The remaining lesions were macroscopically identical to those radiographed and were considered possible cases.
    While hydatid disease has previously been found in pre-agricultural communities, the high prevalence at Con Co Ngua is non-incidental. We propose that the presence of wild canids and management of wild buffalo and deer increased the risk of disease transmission. These findings further reveal subsistence complexity among hunter-gatherers living millennia prior to the adoption of farming in Southeast Asia.
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  • 文章类型: Journal Article
    Megabranchiellagen。11月。(星翅目:Baetidae)是泰国北部的一种新的Baetidmay蝇属。两个新物种,Megabranchiellascutulatasp.11月。和Megabranchiellalongusasp。11月。,被描述。该属与其他Baetidae的区别在于腹段I,轴承一对放大的,腹侧定向的单g,覆盖腹部胸骨II-V;其他g具有正常的大小,并且朝向背侧。两个新物种Megabranchiellalongusasp。11月。和Megabranchiellascutulatasp.11月。可以通过股骨背侧边缘的位置和腹部gI的形状来区分。这种may蝇属是在泰国北部上游河流中具有卵石微生境的流水中发现的。
    Megabranchiella gen. nov. (Ephemeroptera: Baetidae) is established as a new baetid mayfly genus from northern Thailand. Two new species, Megabranchiellascutulata sp. nov. and Megabranchiellalongusa sp. nov., are described. This genus is distinguished from other Baetidae by abdominal segment I, bearing a pair of enlarged, ventrally oriented single gills, covering abdominal sternites II-V; other gills have normal size and are dorsolaterally oriented. The two new species Megabranchiellalongusa sp. nov. and Megabranchiellascutulata sp. nov. can be differentiated by the setation of femur dorsal margin and the shape of abdominal gill I. This mayfly genus was found in flowing water with cobble microhabitats in headwater streams of northern Thailand.
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