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Effects of Papyrus Plants (Cyperus papyrus) on the Physicochemical Parameters and Nutrient Levels of Water and Sediments in Yala Swamp Wetland in Western Kenya

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Journal of Biophysical Chemistry 2024年第1期15卷 1-23页

作者： violet Achieng Orodo Paul Otieno Abuom Emmanuel Amukohe Shikanga Elly Tetty Osewe Douglas Nyambane Anyona Fredrick Mhina Mngube Stephen Adongo Odongo Department of Environmental Studies Maseno University Kisumu Kenya Department of Chemistry Maseno University Kisumu Kenya Department of Physical and Biological Sciences Murang’a University of Technology Murang’a Kenya Wetlands International Dar es Salaam Tanzania Department of Physical Sciences Jaramogi Oginga Odinga University of Science and Technology Bondo Kenya

Yala swamp wetland is the largest fresh water wetland ecosystem in Kenya supporting a broad biodiversity. It comprises of River Yala, the Yala swamp, Lakes Kanyaboli, Namboyo and Sare, and a portion of Lake Victoria neighboring the swamp. Approximately 2300 ha of land have been reclaimed and has been used for large-scale agriculture resulting in mass destruction of papyrus to create room for framing. Papyrus are known to be important in phytoremediation but despite this role information is limited, lacks supportive evidence and the empirical aspect on the levels of these pollutants in relation to the papyrus biomass is limited. The study is aimed at determining the effects of Cyperus papyrus on the water and sediment quality in Yala Swamp wetland. Six sampling sites were purposefully selected to monitor the variations of the physicochemical parameters (temperature, dissolved oxygen: DO, pH, biological oxygen demand: BOD, total suspended solids: TSS, turbidity, electrical conductivity: EC and total dissolved solids: TSS) and the levels selected nutrients (phosphorus and nitrates) in water and sediments as River Yala flows through Dominion Farms, Lake Sare which surrounded by Cyperus papyrus and finally into Lake Victoria. The samples were collected in triplicates during the wet and dry seasons (May and September 2015 respectively). The physicochemical parameters were measured in situ using a Hydrolab muiltimeter while the nutrients were analyzed using UV/Vis spectroscopy. Statistical analysis was done using SAS V9.0 software. The mean temperature was 26.19˚C ± 0.71˚C, DO: 3.72 ± 1.02 Mg/l, BOD: 3.9 ± 0.32 Mg/l, pH: 7.52 ± 0.17, TDS: 109 ± 86.33, EC: 173.26 ± 13.8 μS/cm, TSS: 12.42 ± 18.51 Mg/l and Turbidity: 12.29 ± 10.03 NTU. The values varied significantly at P 0.05 among all the sites. The results show that papyrus is useful in maintaining the required levels of physicochemical parameters. The study will assist in conservation of the papyrus to help phytoremediate

关键词： Adsorbing Contaminants Phytoremediation Conservation Cyperus papyrus

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Hydrodynamic Regimes,Knudsen Layer,Numerical Schemes:Definition of Boundary Fluxes

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Advances in Applied Mathematics and Mechanics 2011年第5期3卷 519-561页

作者： Christophe Besse Saja Borghol Thierry Goudon Ingrid Lacroix-violet Jean-Paul Dudon Project-Team SIMPAF INRIA Lille Nord Europe Research CenterPark Plazza40 av.Halley59650 Villeneuve d’Ascq France Labo P.Painleve UMR 8524 CNRS-Universite des Sciences et Technologies Lille Thales Alenia Space Cannes La Bocca

We propose a numerical solution to incorporate in the simulation of a system of conservation laws boundary conditions that come from a microscopic modeling in the small mean free path *** typical example we discuss is the derivation of the Euler system from the BGK *** boundary condition relies on the analysis of boundary layers formation that accounts from the fact that the incoming kinetic flux might be far from the thermodynamic equilibrium.

关键词： Hydrodynamic regimes Knudsen layer finite volume scheme initial-boundary value problems for conservation laws Evaporation-condensation problem

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Is pass‑through of the exchange rate to restaurant and hotel prices asymmetric in the US?Role of monetary policy uncertainty

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Financial Innovation 2023年第1期9卷 539-557页

作者： Uju violet Alola Ojonugwa Usman Andrew Adewale Alola Department of Tourism Guidance Istanbul Gelisim UniversitIstanbulTurkey Economics and Finance Application and Research Center Department of EconomicsIstanbul Ticaret UniversityIstanbulTurkey Centre for Research on Digitalization and Sustainability Inland Norway University of Applied Sciences2418 ElverumNorway Faculty of Economics Administrative and Social SciencesNisantasi UniversityIstanbulTurke

This study examines the exchange rate pass-through to the United States(US)restaurant and hotel prices by incorporating the effect of monetary policy uncertainty over the period 2001:M12 to 2019:*** the nonlinear autoregressive distributed lag(NARDL)model,empirical evidence indicates asymmetric pass-through of exchange rate and monetary policy ***,a stronger pass-through effect is observed during depreciation and a negative shock in monetary policy uncertainty,corroborating asymmetric pass-through *** results further show that a positive shock in energy prices leads to an increase in restaurant and hotel ***,asymmetric causality indicates that a positive shock in the exchange rate causes a positive shock to restaurant and hotel *** found feedback causal effects between positive and negative shocks in monetary policy uncertainty and positive and negative shocks in the exchange ***,we detected a one-way asymmetric causality,flowing from a positive(negative)shock to a positive(negative)shock in energy ***,these findings provide insights for policymakers to achieve low and stable prices in the US restaurant and hotel industry through sound monetary policy *** drivers of restaurant and hotel business in tourism destinations are *** is asymmetric pass-through of exchange rate and monetary policy uncertainty.A stronger pass-through is observed during appreciation and a negative shock to monetary policy *** is asymmetric causality from positive shock in exchange rate to postive shock in restaurant and hotel prices.

关键词： Restaurant and hotel prices Exchange rate Monetary policy uncertainty Energy price index US economy

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Impact of community strategy package on uptake of reproductive tract infections health services among young street females in the municipality of Eldoret,Kenya

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Gynecology and Obstetrics Clinical Medicine 2023年第1期3卷 60-64页

作者： C violet Maritim Anthony Wanyoro John Maingi Jackim Nyamari Murima Ng'ang'a Department of Population and Reproductive Health Faculty of Public HealthKenyatta UniversityNairobiP.O Box 184-40110SonghorKenya Department of Obstetrics and Gynecology Faculty of Health SciencesKenyatta UniversityNairobiKenya Department of Microbiology and Biochemistry Faculty of Applied SciencesKenyatta UniversityNairobiKenya Department of Environmental and Occupational Health Faculty of Public HealthKenyatta UniversityNairobiKenya Department of Infectious Diseases Ministry of HealthKenya

Background:Despite the intervention of free medical care services for street children by a dedicated clinic in Eldoret municipality,health care service of young street females(YSFs)is still *** present study aimed to evaluate the impact of the community strategy package on the uptake of reproductive tract infections(RTI)health services among the target *** and methods:A pre-test-post-test quasi-experimental with a qualitative and quantitative approach was applied among the YSFs aged 10-24 *** study used structured questionnaires and key informant interviews to collect data from the ***:The study enrolled a total of 77 young street females in Eldoret municipality.A significantly higher proportion of respondents reportedly first sought treatment for RTI at a health facility after the implementation of the community strategy package(97.1%)when compared to the proportion of respondents who first sought treatment at a health facility in the pre-intervention phase(51.0%)(p<0.001).Early seeking of treatment improved significantly after the introduction of the intervention;72.0%and 94.1%of the respondents sought treatment early during the pre-intervention and post-intervention phase,respectively(p<0.011).Conclusion:The study recommends the adoption of the community strategy as an intervention to increase the uptake of RTIs health services and promotion of the reproductive health of young street females.

关键词： Reproductive tract infections Young street females(YSFs) Reproductive health services Community strategy package

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机构治理与腐败：津巴布韦案例研究

机构治理与腐败：津巴布韦案例研究

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作者： MUSARURWA violet RUVIMBO 浙江大学

学位级别：硕士

In Zimbabwe,the corruption rate in the public sector is unbecoming,all the other significant problems the nation is experiencing;debt crisis,spiral in unemployment rates,increasing poverty rates,social inequality are somehow correlated with the level of corruption.A plethora of research has been conducted on public institutions corruption in Zimbabwe,but most of the researches where asking "why are public officials in public institutions corrupt",numerous anti-corruption policies were implemented but corruption remained *** focus on"individuals" has shunned the contribution of an "institute"in any corrupt *** paper is shifting the question from the individual to the institute,the aim is to understand how governance in public institution either creates or closes corruption opportunity gaps that individuals can possibly exploit or how institutional governance motivate individual(un)ethical *** three indicators of governance(ⅰ)ethical culture(ⅱ)institutional system and(ⅲ)accountability are used to measure the governance in three selected public institutions in Zimbabwe,one which is perceived to be most corrupt,the other more corrupt and the other less *** in this study suggest that there is direct correlation between institutional governance and corruption,poor institutional governance indicated by a poor ethical culture,a dysfunctional integrity system and with no accountability create more opportunities gaps for corruption and does not encourage individuals to make ethical decisions,the vice versa is true for a good institutional governance characterized by a sustainable ethical culture,high accountability levels and a concrete integrity *** recommendation in this paper so as to enhance institutional governance in public institutions in Zimbabwe is the ultimate implementation of already existing ethical practices that build a concrete integrity system that is apt to cultivate an integrity culture and inj ect accountability a

关键词： Corruption Governance Public Institutions Integrity

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Source Apportionment of Air Particulates in South Africa: A Review

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Atmospheric and Climate Sciences 2019年第1期9卷 100-113页

作者： Manny Mathuthu violet Patricia Dudu Munyaradzi Manjoro Centre for Applied Radiation Science and Technology (CARST) North-West University Mafikeng Campus Mafikeng South Africa Department of Environmental Science Bindura University of Science Education Bindura Zimbabwe Department of Geography and Environmental Science North-West University Mafikeng Campus Mafikeng South Africa

Source apportionment studies are useful in understanding sources of pollution and can be used in health risk assessments to evaluate the human health impacts from air pollutants. This study reviewed and analysed available source apportionment studies of air particulate in South Africa in October 2016. Searches were performed using different databases for peer reviewed articles including Google scholar, Scopus, EbscoHost, Science Direct and National Research Foundation database. Source categories were identified and these varied depending on the sites where the research was conducted (rural, urban or remote) but biomass burning dominated. A total of 35 source apportionment records were found with the majority of studies in urban areas (60%) while industrial sites had the least number of records (17.1%). The period 2011-2016 had the highest number of records while 1990-1995 had only three publicly available studies. There is limited research on source apportionment studies of air particulate in South Africa, calling for more research in this area.

关键词： Air Particulate Source Apportionment Air Pollution South Africa Source Categories

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“一站式”校园服务瑞尔森大学学生服务中心

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室内设计与装修 2016年第11期 48-51页

作者： violet Gow Hastings Architects

对于高等学校来说,在改善校园环境的同时,也应该不断提高校园建筑特别是公共空间的设计标准,以优质的室内设计强化空间的功能性,从而提升高校在公共事务管理方面的工作效率。加拿大瑞尔森大学在其学生服务中心的建筑改造和室内规划中就... 详细信息

对于高等学校来说,在改善校园环境的同时,也应该不断提高校园建筑特别是公共空间的设计标准,以优质的室内设计强化空间的功能性,从而提升高校在公共事务管理方面的工作效率。加拿大瑞尔森大学在其学生服务中心的建筑改造和室内规划中就将＂一站式＂服务的观念植入空间设计,邀请本土设计师团队Gow Hastings,为空间赋予了新的生命。原建筑建于上世纪70年代,其前身为校园餐厅,面积超过1200 m^2,建筑的风格是当年盛行的野兽派风格。改造的设想是开发其功能性和纽带作用,

关键词：瑞尔服务中心公共开放空间建筑改造公共事务管理野兽派设计标准室内设计彩色玻璃工作效率

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留学荷兰:去莱顿大学看郁金香(三)

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课堂内外（高中版）（A版） 2017年第3期 28-29页

作者： violet 荷兰莱顿大学

让我们互相喂饱对方不知是否因为天气不稳定,加上某些土质不适合生长农作物的关系,荷兰的食物,讲实在的很难称得上是美味。高级的餐厅,我们留学生一般是不会进去的,毕竟手头花着父母的钱。为了能养好我们的中国胃,聚在一起研究食普和亲... 详细信息

让我们互相喂饱对方不知是否因为天气不稳定,加上某些土质不适合生长农作物的关系,荷兰的食物,讲实在的很难称得上是美味。高级的餐厅,我们留学生一般是不会进去的,毕竟手头花着父母的钱。为了能养好我们的中国胃,聚在一起研究食普和亲自下厨,就成了我们之间必不可少的一项活动了。同导师的一位师哥在不久前入手了一件小家电,类似国内的小火锅。

关键词：莱顿荷兰人土豆丝所累我在舞龙舞狮水煮肉片限量供应亚洲文学獅子

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农舍时光奥地利M1农舍

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室内设计与装修 2017年第3期 116-121页

作者： CP architektur violet

本案的业主试图将他的一间农舍及其院中的谷仓,整改造成舒适的休闲居住空间。这间4 m宽的单层农舍体量宽敞,在保留原有建筑外形和场地结构的前提下,设计师赋予了空间新的功能,打造成简约的民宿。设计者保留了农舍的原有外立面,粗糙的抹... 详细信息

本案的业主试图将他的一间农舍及其院中的谷仓,整改造成舒适的休闲居住空间。这间4 m宽的单层农舍体量宽敞,在保留原有建筑外形和场地结构的前提下,设计师赋予了空间新的功能,打造成简约的民宿。设计者保留了农舍的原有外立面,粗糙的抹灰墙面和宽大的木屋顶,绿色的木质院门和狭小的天窗,院落里起伏不平的地形,一切还是简朴的农家院落风格。

关键词： M1 建筑外形外立面玄关体量卫浴间屋顶结构卫浴设计右手边日式

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在镇江雕刻一段古老时光

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科学之友 2019年第7期 48-51页

作者： violet 不详

她是民国时期的江苏省省会,却在历史的推进中渐渐被埋没,被周边城市抢尽风头;她有民国遗留下来的西洋建筑,同样有最市井的街道、最寻常的人家;她有名气不小的西津渡,也有千年古刹、梵音绕梁;她虽没有傲人的GDP,但传承多年的醋业却一直... 详细信息

她是民国时期的江苏省省会,却在历史的推进中渐渐被埋没,被周边城市抢尽风头;她有民国遗留下来的西洋建筑,同样有最市井的街道、最寻常的人家;她有名气不小的西津渡,也有千年古刹、梵音绕梁;她虽没有傲人的GDP,但传承多年的醋业却一直让人叹为观止。她就是江苏镇江,仿佛一个淡雅从容的女子,经历了千年的沧桑,磨平了棱角,平添了一份慵懒,而慵懒中又不失精致。这个被旅游大开发遗漏的江南小城在古老时光中被雕刻得充满了人情味,各种新旧人文杂糅在一处,适合你慢慢悠悠晃荡一圈。

关键词：镇江香醋京畿路

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