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Characteristic relationships between Phosphorous Accrual, Ecosystem Aspects and Water Level Fluctuations in Tropical Lakes: Naivasha Ramsar Site, Kenya

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Journal of Geoscience and Environment Protection 2021年第1期9卷 53-67页

作者： Beatrice N. Obegi George m. Ogendi reuben Omondi Boston J. Siriba George N. morara Nehemiah m. Rindoria Paul Orina Kenya marine and Fisheries research Institute Naivasha Kenya Department of Aquatic and Fishery Sciences Kisii University Kisii Kenya Department of Environmental Science Egerton University Kenya Dryland research Training & Ecotourism Centre Chemeron Egerton University Kenya Department of Biological Sciences Kisii University Kisii Kenya Kenya marine and Fisheries research Institute Kegati Kenya

Hydrological dynamics affect water levels and thus affecting ecosystem structure and functions. Lake levels in tropical ecosystems affect phosphorous input through runoff from adjacent watersheds. The resultant biological community, water and sediment quality of the lakes due to water level changes is a reflection of the geology of the area and the anthropogenic activities in the watershed. The study conducted between January 2018 and December 2019 was to explore relationships between the phosphorous input and Water Level Fluctuations (WLF) recorded by Water resource Authority (wra). Lake water samples were analyzed in the laboratory for phosphorous using molybdenum blue-ascorbic method and recorded using spectrophotometer. Chlorophyll-m>am> was determined by extracting a filtered sample with 15 ml acetone and incubating overnight and thereafter read using a double beam spectrophotometer. Total Suspended Solids (TSS) was determined by filtering 200 ml of a water sample and dried overnight at 105°C. The lowest and highest phosphorous concentrations recorded were 0.2 mg/l and 0.42 mg/l at NST7 and NST2, respectively. measurements of Chlorophyll-m>am> were 0.32 mg/l and 0.42 mg/l at NST9 and NST2, respectively. Secchi transparency measurements were 32.9 cm at NST3 and 84 cm at NST1. The highest and lowest TSS concentrations were 0.14 mg/l and 0.13 mg/l at NTS1 and NST8, respectively. The hydrodynamic regime in most tropical lakes plays a significant role in the re-reaction of phosphorous that consequently influences productivity. Tropical lakes have extreme lake level fluctuations which accelerate the production process. The influence of water level changes on aquatic productivity is crucial in most tropical lakes and should be taken into consideration when assessing the environmental impacts.

关键词： Lake Level Fluctuations Total Phosphorous Ecosystem Aspects Lake Naivasha

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2021年ishne/HRS/EHRA/APHRS关于移动医疗心律失常管理共识:心脏节律专业人员的数字医疗工具

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中国心脏起搏与心电生理杂志 2021年第2期35卷 95-104页

作者： Niraj Varma Iwona Cygankiewicz mintu Turakhia Hein Heidbuchel Yufeng Hu Lin Yee Chen Jean-Philippe Couderc Edmond m.Cronin Jerry D.Estep Lars Grieten Deirdre A.Lane reena mehra Alex Page Rod Passman Jonathan Piccini Ewa Piotrowicz Ryszard Piotrowicz Pyotr G.Platonov Antonio Luiz Ribeiro Robert E.Rich Andrea m.Russo David Slotwiner Jonathan S.Steinberg Emma Svennberg 蔡星星(翻译) 陈牧(翻译) 陈泰中(翻译) 费聿东(翻译) 费振涛(翻译) 龚畅祺(翻译) 胡晓亮(翻译) 李澄(翻译) 练小铭(翻译) 莫斌峰(翻译) 王海成(翻译) 王倩(翻译) 卫郅星(翻译) 徐全福(翻译) 杨眉(翻译) 杨钰粒(翻译) 于怡驰(翻译) 张睿(翻译) 赵铭哲(翻译) 赵晏(翻译) 李毅刚(审校) 王群山(审校) Cleveland Clinic ClevelandOHUSA medical University of Lodz lodzPoland Stanford University Palo AltoCAUSA Antwerp University and University Hospital AntwerpBelgium Taipei Veterans General Hospital TaipeiTaiwanChina University of minnesota MinneapolisMNUSA University of Rochester RochesterNYUSA Temple University PhiladelphiaPAUSA Hasselt University HasseltBelgium University of Liverpool LiverpoolUK Northwestern University Feinberg School of medicine Chicagot ILUSA Duke University DurhamNCUSA National Institute of Cardiology WarsawPoland Lund University LundSweden Faculdade de medicina Centro de TelessaúdeHospital and Clínicasand Departamento de Clínica MédicaUniversidade Federal de Minas GeraisBelo HorizonteBrazil Cooper medical school of Rowan University CamdenNJUSA Cardiology Division New York-PresbyterianQueensand School of Health Policy and ResearchWeill Cornell MedicineNew YorkNYUSA Karolinska University Hospital StockholmSweden 上海交通大学医学院附属新华医院心内科上海交通大学心律失常诊治中心

国际动态心电图和无创心电图学会/心律学会/欧洲心律协会/亚太心律协会制定的"关于移动医疗心律失常管理共识"描述了移动医疗(mHealth)技术在心律失常管理中的现状,涉及数字医疗工具范围,以及可能应用于心律失常的诊断和协助临床决策。... 详细信息

国际动态心电图和无创心电图学会/心律学会/欧洲心律协会/亚太心律协会制定的"关于移动医疗心律失常管理共识"描述了移动医疗(mHealth)技术在心律失常管理中的现状,涉及数字医疗工具范围,以及可能应用于心律失常的诊断和协助临床决策。合并症和生活方式管理(日益公认在心律失常中起作用)以及患者自我管理赋予了mHealth新的内容。共识对预测分析的承诺,以及嵌入了mHealth的常规临床关怀的操作面临的挑战,进行了探讨。

关键词：心血管病学移动医疗综述心律失常心脏节律

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