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hydrochemical and Isotopic Characterisation of Groundwaters in the Eastern Region of Ghana

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Journal of Water Resource and Protection 2010年第3期2卷 199-208页

作者： samuel Y. Ganyaglo Bruce Banoeng-Yakubo Shiloh Osae samuel B. Dampare Joseph R. Fianko Mohammad A. h. Bhuiyan 不详

Major ions and stable isotopes of groundwater in the Cape Coast granitoid complex (G1) and Lower Birimian (LB) formations in the Eastern Region of Ghana were evaluated to establish the source of recharge to the groundwater system. Five major hydrochemical facies were identified in the various rocks in the study area. They are calcium-magnesium-bicarbonate, sodium bicarbonate, sodium chloride and calcium chloride waters and mixed or non dominant water type. Sodium chloride and calcium chloride waters dominate aqui-fers of the Cape Coast granitoid complex whereas calcium-magnesium-bicarbonate is the dominant hydro-chemical facies in the Lower Birimian aquifers. The most probable geochemical process responsible for the evolution of these hydrochemical facies is dissolution of minerals in the various rock types. Stable isotope composition of the groundwaters established that the recharge to the groundwater system is derived from rainfall.

关键词： hydrochemistry Isotopes Groundwater Ghana

Cost effectiveness of nonpharmacological prevention programs for diabetes:A systematic review of trial-based studies

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Chronic Diseases and Translational Medicine 2024年第1期10卷 12-21页

作者： Yongyi Xiong Zhaohua huo samuel Y.S.Wong Benjamin h.K.Yip Jockey Club School of Public health and Primary Care Prince of Wales HospitalThe Chinese University of Hong KongShatinHong KongChina

Trial-based economic value of prevention programs for diabetes is *** aimed to review the cost-effectiveness of nonpharmacological interventions to prevent type-2 diabetes mellitus(T2DM)for high-risk *** electronic databases were searched up to March *** assessing both the cost and health outcomes of nonpharmacological interventions for people at high-risk of T2DM were *** quality of the study was assessed by the Consolidated health Economic Evaluation Reporting Standards 2022 *** primary outcome for synthesis was incremental cost-effectiveness ratios(ICER)for quality-adjusted life years(QALYs),and costs were standardized in 2022 US *** synthesis was performed,considering different types and delivery methods of *** studies included five based on the US diabetes prevention program(DPP),six on non-DPP-based lifestyle interventions,four on health education,and one on screening plus lifestyle *** with usual care,lifestyle interventions showed higher potential of cost-effectiveness than educational *** lifestyle interventions,DPP-based programs were less cost-effective(median of ICERs:$27,077/QALY)than non-DPP-based programs(median of ICERs:$1395/QALY)from healthcare perspectives,but with larger decreases in diabetes ***,the cost-effectiveness of interventions was more possibly realized through the combination of different delivery *** interventions to prevent T2DM in high-risk populations are both cost-effective and feasible in various ***,economic evidence from low-and middle-income countries is still lacking,and interventions delivered by trained laypersons and combined with peer support sessions or mobile technologies could be potentially a cost-effective solution in such settings with limited resources.

关键词： economic evaluation nonpharmacological interventions pre-diabetes prevention

Corrigendum to“An Integrated Systems Biology Approach Identifies the Proteasome as A Critical host Machinery for ZIKV and DENV Replication"[Genomics Proteomics Bioinformatics 19(1)(2021)108-122]

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Genomics, Proteomics & Bioinformatics 2022年第4期20卷 808-809页

作者： Guang song Emily M. Lee Jianbo Pan Miao Xu hee-Sool Rho Yichen Cheng Nadia Whitt Shu Yang Jennifer Kouznetsova Carleen Klumpp-Thomas samuel G. Michael Cedric Moore Ki-Jun Yoon Kimberly M. Christian Anton Simeonov Wenwei huang Menghang Xia Ruili huang Madhu Lal-Nag hengli Tang Wei Zheng Jiang Qian hongjun song Guo-li Ming heng Zhu Department of Pharmacology & Molecular Sciences Johns Hopkins School of Medicine Baltimore MD 21205 USA Department of Biological Science Florida State University Tallahassee FL 32306 USA Department of Ophthalmology Johns Hopkins School of Medicine Baltimore MD 21205 USA National Center for Advancing Translational Sciences National Institutes of Health Bethesda MD 20892 USA Sir Run Run Shaw hospital Zhejiang University School of Medicine Hangzhou 310016 China Institute for Cell Engineering Johns Hopkins University School of Medicine Baltimore MD 21205 USA Department of Neuroscience and Mahoney Institute for Neurosciences Perelman School for Medicine University of Pennsylvania Philadelphia PA 19104 USA Department of Cell and Developmental Biology Perelman School for Medicine University of Pennsylvania Philadelphia PA 19104 USA Institute for Regenerative Medicine Perelman School for Medicine University of Pennsylvania Philadelphia PA 19104 USA The Epigenetics Institute Perelman School for Medicine University of Pennsylvania Philadelphia PA 19104 USA

Penman-Monteith模型模拟Venlo型温室黄瓜植株蒸腾

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农业工程学报 2019年第8期35卷 149-157页

作者：闫浩芳赵宝山张川黄松付翰文鱼建军 samuel Joe Acquah 江苏大学流体机械工程技术研究中心镇江212013 江苏大学农业工程研究院镇江212013

准确模拟温室作物蒸腾对于制定科学合理的灌溉制度及温室环境调控具有重要意义,该研究基于2017年秋冬季和2018年春夏季Venlo型温室黄瓜生育期内微气象数据、黄瓜生长发育指标和植株蒸腾,对Penman-Monteith(PM)模型中关键参数—冠层阻力... 详细信息

准确模拟温室作物蒸腾对于制定科学合理的灌溉制度及温室环境调控具有重要意义,该研究基于2017年秋冬季和2018年春夏季Venlo型温室黄瓜生育期内微气象数据、黄瓜生长发育指标和植株蒸腾,对Penman-Monteith(PM)模型中关键参数—冠层阻力和空气动力学阻力进行研究。通过分析黄瓜叶片孔阻力与温室内气象因子的响应关系,构建了由黄瓜有效叶面积指数及叶片孔阻力模拟冠层阻力的子模型;采用基于风速的Perrier对数法和基于温室对流类型的热传输系数法计算温室内低风速环境下的空气动力学阻力,并评价不同方法的适用性。结果表明:叶片孔阻力与太阳辐射呈指数关系(R^2=0.89),可通过观测温室内太阳辐射计算黄瓜叶片孔阻力;应用热传输系数法确定空气动力学阻力时,温室内对流类型绝大多数时间为混合对流;2种方法计算的温室内空气动力学阻力变化幅度均较小,Perrier对数法计算的春夏季和秋冬季空气动力学阻力平均值分别为388和383 s/m,热传输系数法计算的空气动力学阻力平均值分别为141和158 s/m;基于2种空气动力学阻力计算方法,PM模型模拟的植株蒸腾与实测值均具有较好的一致性,但采用Perrier对数法计算空气动力学阻力时,PM模型低估了植株蒸腾,春夏季和秋冬季拟合线斜率分别为0.87和0.91;而采用热传输系数法计算空气动力学阻力时,PM模型可更准确的模拟该地区温室黄瓜植株蒸腾,春夏季和秋冬季拟合线斜率分别为1.00和0.94,R^2分别为0.91和0.95,均方根误差分别为46.15和12.45 W/m^2。该研究结果为实现PM模型在Venlo型温室环境的准确应用提供了参考。

关键词：蒸腾热传输系数空气动力学气孔阻力冠层阻力对流类型

Global wild rice germplasm resources conservation alliance:World Wild-Rice Wiring

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Molecular Plant 2024年第4期17卷 516-518页

作者： Xiaoming Zheng Disna Ratnasekera Jiayu Fan Robert J.henry Beng-Kah.song Kenneth M.Olsen Bal Krishna Joshi Maria Celeste N.Banaticla-hilario Tonapha Pusadee Adane Getachew Melaku Yeyinou Laura Estelle Loko Koukham Vilayheuang Gavers K.Oppong samuel Aduse Poku Peterson W.Wambugu song Ge Aldo Merotto Junior Ohn Mar Aung Ramaiah Venuprasad Ajay Kohli Wenbin Zhou Qian Qian National Key Facility for Crop Gene Resources and Genetic Improvement Institute of Crop SciencesChinese Academy of Agricultural SciencesBeijing 100081China Sanya National Research Institute of Breeding in hainan Chinese Academy of Agricultural SciencesBeijing 100081China International Rice Research Institute DAPO Box 7777Metro Manila 4031Philippines Department of Agricultural Biology Faculty of AgricultureUniversity of RuhunaMatara 81000Sri Lanka Yazhouwan National Laboratory No.8 Huanjin RoadYazhou DistrictSanya CityHainan Province 572024China hainan University Haikou 570228China ARC Centre of Excellence for Plant Success in Nature and Agriculture University of QueenslandBrisbaneQLD4072Australia School of Science Monash University Malaysia47500 Bandar SunwaySelangor 47500Malaysia Department of Biology Washington University in St.LouisSt.LouisMO 63130-4899USA National Agriculture Genetic Resources Center(Genebank) KhumaltarPO Box 3055KathmanduNepal Plant Biology Division Insttute of Biological SciencesUniversity of the Pilippines Los BanosLos BanosLaguna 4031Philippines Division of Agronomy Department of Plant and Soil SciencesFaculty of AgricultureChiang Mai UniversityChiang Mai 50200Thailand Bio and Emerging Technology Institute Addis Ababa 1165Ethiopia National University of Sciences TechnologiesEngineering and Mathematics(UNSTIM)Dassa-ZouméBP 14Benin National Genebank Rice and Cash Crops Research CenterNAFRIVientiane 0605Lao PDR Plant Sciences and the Bioeconomy Rothamsted ResearchHarpenden AL52JQUK UK Future Food Beacon of Excellence and School of Biosciences and University of Nottingham Nottingham LE125RDUK Department of Plant and Environmental Biology University of GhanaAccraGhana Kenya Agricultural and Livestock Research Organization Genetic Resources Research InstituteNairobi 00200Kenya Institute of Botany Chinese Academy of SciencesBeijing 100093China Federal University of Rio Grande do Sul UFRGSPorto Alegre 91501-970RSBrazil Department of Agricultur

Wild relatives of crop are key genetic resources serving as diversity reservoirs for crop improvement under changing ***(Oryza sativa)is one of the most important crops in the world,providing staple food for half of the world's *** rice is thus a critical germplasm resource for sustained global food security,ensuring high production yields,improved quality,and stress resistance in the face of climate *** rice is closely related to domesticated rice and has a rich genetic diversity and exceptional adaptability to extreme *** has played a pivotal role in the history of rice hybridization and has become a key resource for rice breeding *** identification of wild-type cytoplasmic male sterility resources paved the way for the achievement of the“three lines”goal in hybrid rice,leading to a significant increase in rice *** addition,the use of resistance alleles found in wild rice is making rice production more resilient to losses caused by environmental ***,wild rice germplasm resources are threatened due to habitat destruction and other anthropogenic *** the same time,the lack of centralized distribution of wild rice has hampered the sharing of basic information on wild rice resources and the utilization and conservation of wild rice in each country,as well as collaboration among scientists.

关键词： germplasm breeding crops

Optimizing bio-physical conditions and pre-treatment options for breaking lignin barrier of maize stover feed using white rot fungi

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Animal Nutrition 2016年第4期2卷 361-369页

作者： Andrew M. Atuhaire Fred Kabi samuel Okello Swidiq Mugerwa Cyprian Ebong National Livestock Resources Research Institute Department of Livestock and Industrial Resources School of Veterinary Medicine and Animal Resources College of Veterinary Medicine Animal Resources and Bio-security (CoVAB) Makerere University Department of Agricultural Production School of Agricultural Sciences College of Agricultural and Environmental Sciences (CAES) Makerere University Animal Production Program Rwanda Agriculture Board (RAB)

The greatest limitation to utilization of maize stover by ruminants as a feed is the high concentration of lignin, which limits fibre digestibility. however, ruminants can effectively utilize maize stover if its nutritive value is improved using white rot fungal species. This study was designed to determine optimal biophysical conditions for mycelial growth and select the most ideal fungal species and pre-treatment options for improving nutritive value of maize stover. Four popular edible Pleurotus fungal species(*** florida,Pleurotus ostreatus, Pleurotus sajor caju and Pleurotus pulmonarius) were subjected to varying temperatures, ph levels, hydrogen peroxide(h_2 O_2) concentration and illumination to establish the extent of mycelial growth *** of h_2 O_2 was used to determine optimal levels for preservation and prevention of contamination from other indigenous microbiota. Effects of pre-treatment options on chemical composition and nutritive value of maize stover were also examined. Mycelial growth rate of Pleurotus species on potato dextrose agar(PDA) varied(P h temperature, ph level and h_2 O_2 concentration following a quadratic trend. Optimal temperature, ph and h_2 O_2 concentration for mycelial growth on PDA were 25 ℃,5 and 0.01 mL/L, respectively. Under the different bio-physical conditions,P. sajor caju had the highest mycelia density and growth rate. Chemical composition of solid-state fermented maize stover differed(P he Pleurotus species. Maize stover fermented with P. sajor caju had the highest crude protein(CP) of 86.6 g/kg DM, in-vitro dry matter digestibility(IVDMD) of 731 g/kg DM, in-vitro organic matter digestibility(IVOMD) of 670.4 g/kg DM and metabolizable energy(ME) of10.0 MJ/kg DM but with the lowest lignin(sa) of 50 g/kg DM. At 25℃, P. sajor caju had the highest mycelial growth rate on PDA and highest lignin(sa) breakdown in the maize stover substrate. It was, therefore,selected as the most ideal

关键词： Crop residues Lactobacillus plantarum Lignin biodegradation Mycelial growth

A direct polymeric carbon nitride/tungsten oxide Z-scheme heterostructure for efficient photocatalytic hydrogen generation via reforming of plastics into value-added chemicals

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Rare Metals 2024年第8期43卷 3771-3783页

作者： Rui-Zhe Wang Zhi Lin Yi-Qing Wang Kai-Ni Zhang Ge-hong Zhang Jie Zhang samuel S.Mao Shao-hua Shen International Research Center for Renewable Energy State Key Laboratory of Multiphase Flow in Power EngineeringXi'an Jiaotong UniversityXi'an 710049China School of Civil and Architecture Engineering Xi'an Technological UniversityXi'an 710021China Department of Mechanical Engineering University of California at BerkeleyBerkeleyCA94720USA

To promote charge transfer and separation for efficient photocatalysis,a direct Z-scheme heterostructure was constructed by coupling polymeric carbon nitride(PCN) and WO_(3).Interestingly,the obtained PCN/WO_(3)Z-scheme heterostructure could photocataly tic ally produce hydrogen and value-added chemicals(e.g.,formate and acetate) by reforming of plastic polylactic acid(PLA) in alkaline aqueous *** optimizing WO_(3) contents and reaction conditions,the obtained PCN/WO_(3)heterostructure exhibits much increased photocatalytic activity for PLA photoreforming under visible light,with hydrogen evolution rate reaching 402.90 μmol·g~(-1)·h~(-1),which is 3.5 times that of *** is revealed that the Z-scheme charge transfer between PCN and WO_(3) mainly contributes to the promoted charge separation and thus the improved photocatalytic ***,with h+and·Oh experimentally evidenced as the predominant active species,a possible reaction pathway for the reforming of PLA into value-added chemicals(e.g.,formate and acetate)over PCN/WO_(3) Z-scheme heterostructure is cleared by monitoring the reaction intermediates and *** work paves a carbon neutrality and scalable route toward the synergistical production of hydrogen and value-added chemicals by utilizing and recycling plastic waste.

关键词： Carbon nitride Z-scheme heterojunction Plastic waste conversion Photocatalytic h_(2)production Value-added chemicals

Cyclin-dependent kinase inhibitors p21 and p27 function as critical regulators of liver regeneration following 90%hepatectomy in the rat

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World Journal of hepatology 2020年第12期12卷 1198-1210页

作者： Nicolas Moniaux Laurence Lacaze Adelie Gothland Alice Deshayes Didier samuel Jamila Faivre INSERM U1193Paul-Brousse University HospitalHepatobiliary CentreVillejuif 94800France UniversitéParis-Saclay Facultéde Médecine Le KremlinBicêtre 94270France Department of Pôle de Biologie Médicale Laboratoire d’Onco-HématologieAssistance Publique-Hôpitaux de Paris(AP-HP)Paul-Brousse University HospitalVillejuif 94800France

BACKGROUND Liver reduction is the main curative treatment for primary liver cancer,but its use remains limited as liver regeneration requires a minimum of 30%functional *** To study the dynamics of the liver regeneration process and consequent behavior of cell cycle regulators in rats after extended hepatectomy(90%)and postoperative glucose *** Post-hepatectomy liver failure was triggered in 84 Wistar rats by reducing their liver mass by 90%.The animals received a post-operative glucose infusion and were randomly assigned to two groups:One to investigate the survival rate and the other for biochemical *** that underwent laparotomy or 70%hepatectomy were used as *** and liver samples were collected on postoperative days 1 to *** morphology,function,and regeneration were studied with histology,immunohistochemistry,and western *** Postoperative mortality after major resection reached 20%and 55%in the first 24 h and 48 h,respectively,with an overall total of 70%7 d after *** apparent signs of apoptotic cell death were detected in the extended hepatectomy rat livers,but hepatocytes displaying a clear cytoplasm and an accumulation of hyaline material testified to changes affecting their functional *** regeneration started properly,as early events initiating cell proliferation occurred within the first 3 h,and the G1 to S transition was detected in less than 12 ***,a rise in p27(Kip1)followed by p21(Waf1/Cip1)cell cycle inhibitor levels led to a delayed S phase progression and ***,liver regeneration in rats with a 90%hepatectomy was delayed by 24 h and associated with a delayed onset and lower peak magnitude of hepatocellular deoxyribonucleic acid *** This work highlights the critical importance of the cyclin/cyclin-dependent kinase inhibitors of the Cip/Kip family in regulating the liver regeneration timeline following extended hepatectomy.

关键词： Major hepatectomy Liver failure Liver regeneration Post-hepatectomy liver failure p21 p27

Recent Advances in ^(19)Fluorine Magnetic Resonance Imaging with Perfluorocarbon Emulsions

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Engineering 2015年第4期1卷 475-489页

作者： Anne h.Schmieder Shelton D.Caruthers Jochen Keupp samuel A.Wickline Gregory M.Lanza Division of Cardiology Washington University School of Medical Toshiba Medical Research Institute USA Inc. Department of Biomedical Engineering Washington University Philips Research hamburg

The research roots of 19fluorine （19F） magnetic resonance imaging （MRI） date back over 35 years. Over that time span, 1h imaging flourished and was adopted worldwide with an endless array of applications and imaging approaches, making magnetic resonance an indispensable pillar of biomedical diagnostic imaging. For many years during this timeframe, 19F imaging research continued at a slow pace as the various attributes of the technique were explored. however, over the last decade and particularly the last several years, the pace and clinical relevance of 19F imaging has exploded. In part, this is due to advances in MRI instrumentation, ~gF/1h coil designs, and ultrafast pulse sequence development for both preclinical and clinical scanners. These achievements, coupled with interest in the molecular imaging of anatomy and physiology, and combined with a cadre of innovative agents, have brought the concept of ~gF into early clinical evaluation. In this review, we attempt to provide a slice of this rich history of research and development, with a particular focus on liquid perfluorocarbon compound-based agents.

关键词： fluorine magnetic resonance imaging (MRI) dual-tuned coil perfluorocarbon angiogenesis cell labeling