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Environmental issues from coal mining and their solutions

Mining Science and Technology 2010年第2期20卷 215-223页

作者： BIAN, Zhengfu INYANG, Hilary I DANIElS, John l OTTO, Frank STRUTHERS, Sue institute of land resources china university of mining & technologyxuzhou 221008china global institute for energy and environmental systems university of north carolinacharlotte nc 28223usa global institute for energy and environmental systems university of north carolinacharlotte nc 28223usa natural science foundation of the usa arlington va 22230usa department of geoengineering and mining university of applied sciencebochum 44801germany skapa mining services orkney kw172sxuk

The environmental challenges from coal mining include coal mine accidents,land subsidence,damage to the water environment,mining waste disposal and air *** are either environmental pollution or landscape change.A conceptual framework for solving mine environmental issues is *** processes,or remediation measures,are designed to address environmental *** measures are proposed to handle landscape *** total methane drainage from 56 Chinese high methane concentration coal mines is about 101.94 million cubic *** this methane,19.32 million,35.58 million and 6.97 million cubic meters are utilized for electricity generation,civil fuel supplies and other industrial purposes,*** 39% of the methane is emitted into the *** production of coal mining wastes can be decreased 10% by reuse of mining wastes as underground fills,or by using the waste as fuel for power plants or for raw material to make bricks or other infrastructure *** proper use of mined land must be decided in terms of local physical and socio-economical *** European countries more than 50% of previously mined lands are reclaimed as forest or grass ***,in China more than 70% of the mined lands are reclaimed for agricultural purposes because the large population and a shortage of farmlands make this *** of rural communities or native residential improvement is one environmental problem arising from *** suggest two ways to reconstruct a farmer's house in China.

关键词： mine environment management of mining wastes reuse of mine gas mined land reclamation clean coal mining

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对妊娠母猪精准饲喂的一个决策支持系统评估(下)

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猪业科学 2021年第2期38卷 20-23页

作者：何颖(译) charlotte Gaillard Nathalie Quiniou Raphael Gauthier laetitia Cloutier Jean-Yves Dourmad 辽宁禾丰牧业股份有限公司辽宁鞍山114100 不详

前报道的使用精准饲喂模式(PF),将2种不同赖氨酸水平的日粮(高赖氨酸-H,低赖氨酸-l)进行不同比例混合后饲喂生长育肥猪,相对于基于单一配方的日粮(C)的传统饲喂模式(CF),可以减少蛋白摄入和N排放。使用基于猪场数据的模拟方法,文章旨在... 详细信息

前报道的使用精准饲喂模式(PF),将2种不同赖氨酸水平的日粮(高赖氨酸-H,低赖氨酸-l)进行不同比例混合后饲喂生长育肥猪,相对于基于单一配方的日粮(C)的传统饲喂模式(CF),可以减少蛋白摄入和N排放。使用基于猪场数据的模拟方法,文章旨在描述和评估精准饲喂妊娠母猪的一个决策支持系统,该系统允许给每头母猪每天供应一个定制日粮。有两个数据组,猪场A中有2511头妊娠母猪,猪场B中有2528头妊娠母猪,在电子设备上通过构建Python模型,在授精时输入母猪特征并在产仔时输入具体目标。该模型主要基于InraPorc,计算每头母猪整个妊娠期的营养需要,并模拟了PF相对于CF的影响。模拟日粮l、H和C分别含有标准回肠可消化赖氨酸(SID lys)3.0 g/kg、6.5 g/kg和4.8 g/kg,标准总肠道可消化磷(STTD-P)2.0 g/kg、3.3 g/kg和2.5 g/kg。采用混合模型分析猪场、胎次、妊娠周对SID lys和STTD-P计算需要的影响程度以及三者的互作效应。在妊娠期后三分之一阶段,SID lys和STTD-P计算需要量显著增加(Pl日粮占总日粮的86%和92%。相比于CF,猪场A和猪场B通过PF模式的平均日粮SID lys计算含量要低27%和32%,而平均日粮磷计算含量要低13%和16%。对于SID lys缺乏或过量的母猪模拟比例可通过PF来减少。相比于CF,PF模式使每头母猪在妊娠期的模拟饲料损耗减少3.6%,并同时减少氮和磷的摄入(分别减少11.0%和13.8%)和排出(分别减少16.7%和15.4%)。综上所述,这些模拟计算表明:妊娠母猪精准饲喂,呈现出满足氨基酸需要的同时,减少饲料损耗以及氮、磷的摄入和排泄。

关键词：氨基酸环境妊娠母猪矿物元素营养精准饲喂

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非酒精性脂肪肝活组织检查的抽样变异性

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世界核心医学期刊文摘（胃肠病学分册） 2005年第10期1卷 29-30页

作者： Ratziu V. charlotte F. Heurtier A. 李宏宇 Hospitalier Pitié Salpêtrière Service d'Hépatog-astroentérologie 47-83 Bd de l'Hopital Paris 75013 France Dr.

Background &Aims: In nonalcoholic fatty liver disease (NAFlD), the distinction between steatosis and steatohepatitis (NASH) and the assessment of the severity of the disease rely on liver histology alone. The aim of this study was to assess the sampling error of liver biopsy and its impact on the diagnosis and staging of NASH. Methods: Fifty-one patients with NAFlD underwent percutaneous liver biopsy with 2 samples collected. The agreement between paired biopsy specimens was assessed by the percentage of discordant results and by the κreliability test. Results: No features displayed high agreement; substantial agreement was only seen for steatosis grade; moderate agreement for hepatocyte ballooning and perisinusoidal fibrosis; fair agreement for Mallory bodies; acidophilic bodies and lobular inflammation displayed only slight agreement. Overall, the discordance rate for the presence of hepatocyte ballooning was 18%, and ballooning would have been missed in 24%of patients had only 1 biopsy been performed. The negative predictive value of a single biopsy for the diagnosis of NASH was at best 0.74. Discordance of 1 stage or more was 41%. Six of 17 patients with bridging fibrosis (35%) on 1 sample had only mild or no fibrosis on the other and therefore could have been under staged with only 1 biopsy. Intraobserver variability was systematically lower than sampling variability and therefore could not account for most of the sampling error. Conclusions: Histologic lesions of NASH are unevenly distributed throughout the liver parenchyma; therefore, sampling error of liver biopsy can result in substantial misdiagnosis and staging inaccuracies.

关键词：酒精性脂肪肝活组织检查肝细胞气球样变脂肪变性 NASH 肝组织活检纤维化程度活检标本程度评估肝实质

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Iron increases HMOX1 and decreases hepatitis C viral expression in HCV-expressing cells

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World Journal of Gastroenterology 2009年第36期15卷 4499-4510页

作者： Wei-Hong Hou lisa Rossi Ying Shan Jian-Yu Zheng Richard W lambrecht Herbert l Bonkovsky The Cannon Research Center and the liver Digestive Disease and Metabolism Laboratory Carolinas Medical Center Charlotte NC 28203 United States The University of North Carolina Charlotte NC 28223 United States Richard W lambrecht Department of Medicin e University of Connecticut Health Center Farmington CT 06030 United States Department of Molecular Microbial & Structural Biology University of Connecticut Health Center Farmington CT 06030 United States The Cannon Research Center and the liver Digestive Disease and Metabolism Laboratory Carolinas Medical Center Charlotte NC 28203 United States The University of North Carolina Charlotte 28223 United States The University of North Carolina Chapel Hill NC 27514 United States Departments of Medicine and Molecular Microbial & Structural Biology University of Connecticut Health Center Farmington CT 06030 United States Department of Medicine of the University of Massachusetts Medical School Worcester MA 01655 United States

AIM： To investigate effects of iron on oxidative stress, heme oxygenase-1 （HMOX1） and hepatitis C viral （HCV） expression in human hepatoma ceils stably expressing HCV proteins. METHODS： Effects of iron on oxidative stress, HMOX1, and HCV expression were assessed in CON1 cells. Measurements included mRNA by quantitative reverse transcription-polymerase chain reaction, and protein levels by Western blots. RESUlTS： Iron, in the form of ferric nitrilotriacetate,increased oxidative stress and upegulated HMOX1 gene expression. Iron did not affect mRNA or protein levels of Bach1, a repressor of HMOXl. Silencing the up-regulation of HMOXl nuclear factor-erythroid 2-related factor 2 （Nrf2） by Nrf2-siRNA decreased FeNTA-mediated up-regulation of HMOXl mRNA levels. These iron effects were completely blocked by deferoxamine （DFO）. Iron also significantly decreased levels of HCV core mRNA and protein by 80%-90%, nonstructural 5A mRNA by 90% and protein by about 50% in the Con1 full length HCV replicon cells, whereas DFO increased them. CONClUSION： Excess iron up-regulates HMOXl and down-regulates HCV gene expression in hepatoma cells. This probably mitigates liver injury caused by combined iron overload and HCV infection.

关键词： Deferoxamine Core protein of hepatitis Cvirus Hepatitis C Iron Heme oxygenase-1 Nuclearfactor-erythroid 2-related factor 2 Bachl Oxidativestress Nonstructural 5A protein of hepatitis C virus

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“我天生就是干汽车销售的”

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商业周刊（中文版） 2008年第6期 26-26,28页

作者：李茸（charlotte li）杨鸣娟（译）

庞庆华是极具代表性的中国汽车经销商。从1983年至今，他已将一个当初仅6人的河北省唐山市滦县物资局属物资贸易公司打造成跨20多个省市、员工1．4万人、销售服务网络逾300家的汽车销售王国。如今，庞庆华的唐山市冀东物贸集团有限责任... 详细信息

庞庆华是极具代表性的中国汽车经销商。从1983年至今，他已将一个当初仅6人的河北省唐山市滦县物资局属物资贸易公司打造成跨20多个省市、员工1．4万人、销售服务网络逾300家的汽车销售王国。如今，庞庆华的唐山市冀东物贸集团有限责任公司是中国最大的汽车经销商之一，2007年实现销售额人民币2104l元，净利润5亿元。“我认为我天生就是干这个（汽车销售）的，”今年52岁的庞庆华说着笑了。

关键词：汽车销售天生汽车经销商物资贸易公司销售服务网络有限责任公司唐山市物资局

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charlotte Temple

Charlotte Temple

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作者： edited by Marion l. Rust.

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Continuous conversion of methanol to higher hydrocarbons at ambient pressure

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Journal of Natural Gas Chemistry 2010年第5期19卷 461-462页

作者： William W.Porterfield Gordon M.Zrelak l.Avery Moncure Matthew D.Huff Hampden-Sydney College Pennsylvania State University University Park UNC-charlotte

An iodozincate ionic liquid solvent and catalyst is used to convert methanol continuously to a wide variety of hydrocarbons at atmospheric pressure.

关键词： methanol conversion zinc iodide hydrocarbon formation

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Pregnancies Outcome after Assisted Reproductive Technology: A Multicenter Case Control Study in a low Income Setting Douala, Cameroon

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Open Journal of Obstetrics and Gynecology 2021年第6期11卷 720-731页

作者： Tchente Nguefack charlotte Bourdanne Tekouake Didier T. Nana Njamen Nda Mefo’o Jean Pierre Ekono Michel Roger Essome Henri Tsingaing Kamgaing Jacques Gwet Bell Ernestine Sandjon Guy Halle Ekane Edie Gregory Faculty of Medicine and Pharmaceutical Science University of Douala Douala Cameroon Department of Gynecology and Obstetrics Douala General Hospital Douala Cameroon Faculty of Health Sciences University of Buea Buea Cameroon Department of Biology Douala General Hospital Douala Cameroon Bel Air Plus Clinic Douala Douala Cameroon Odyssée Medical Clinic Douala Douala Cameroon Clinique de l’Aéroport Douala Douala Cameroon

The objective was to assess the outcome of pregnancies after assisted reproductive technology (ART). It was a case-control study carried out in four health facilities in Douala-Cameroon, over a period of five years. The cases were pregnant women who conceived through ART and the controls were those who conceived naturally. Cases and controls were matched for maternal age and parity (one case for two controls). A logistic regression analysis was used to compute Odds ratios. Statistical significance was set at 0.05. A total of 174 women who conceived through ART and 348 who conceived naturally were enrolled. Some independent factors associated with ART were: age over 45 years [aOR: 7.55; 95% CI (1.55 - 36.76);p: 0.01], twin pregnancies [aOR: 16.55; le="font-family:Verdana;">le

关键词： Pregnancy Outcome Assisted Reproductive Technology Douala

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Nursing culture assessment tool (NCAT): Empirical validation for use in long-term care

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International Journal of Nursing Sciences 2014年第3期1卷 241-249页

作者： Tracey l.Yap Susan M.Kennerly Elizabeth P.Flint Duke University School of Nursing 307 Trent Dr.DurhamNC 27710United States Duke University Center for the Study of Aging and Human Development Box 3003 DUMCDurhamNC 27710United States University of North Carolina at charlotte School of Nursing United States

Background:Capturing general aspects of the occupational subculture of nursing is needed in long-term care(lTC)given its latent influence on the quality of care that residents receive and on the ability of nursing staff(licensed nurses and certified nursing assistants)to implement evidence-based practice *** psychometrically validated Nursing Culture Assessment Tool(NCAT)provides a comprehensive assessment using six dimensions(teamwork,communication,satisfaction,professional commitment,behaviors,and expectations),and evaluation of these dimensions could help positively reshape the culture before any change ***:Aims were to:(1)assess the validity and reliability of the NCAT across nursing staff in a single type of clinical setting e lTC facilities,and(2)present a refined theoretical model of the interaction of culture and practice ***:A cross-sectional,exploratory investigation of the NCAT in lTC settings was *** construct validity of the 19-item NCAT's six subscales was investigated by confirmatory factor analysis using a sample of licensed nurses and certified nursing assistants(n?318).Results:The model fit was judged using the comparative fit index(0.94)and standardized root mean-square residual(0.05).Cronbach's alpha correlation coefficients of items in each subscale and in the overall scale ranged from 0.76 to ***:A summary of the NCAT development and report on its psychometric properties when administered in lTC settings is provided,extending previous findings of the NCAT's enhanced stability when used in assessing nursing staff perceptions in lTC and by demonstrating that the NCAT is a reliable and valid psychometric screening tool for nursing culture.

关键词： Nursing culture Staff assessment long-term care Occupational subculture framework

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高大冷杉温室Strophosoma象甲的微生物防治(英文)

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安徽农业大学学报 2007年第2期34卷 185-194页

作者：夏洛蒂.尼尔森 Susanne Vestergaard Susanne Harding JФrgen Eilenberg Department of Ecology Copenhagen UniversityFaculty of Life SciencesThorvaldsensvej 401871 Frederiksberg CDenmark

In Denmark,the weevils Strophosoma melanogrammum and *** cause economic damage in Noble fir due to the adult stage feeding on the *** chemical treatments of these weevils are allowed in Denmark,so biological control is an attractive *** evaluated the potential for microbial control of larvae of Strophosoma *** on laboratory bioassays and field applications,taking effect on both target and non-target into consideration,as well as persistence of the applied *** the laboratory Beauveria bassiana,Paecilomyces farinosus and Metarhizium anisopliae were able to infect and cause mycosis in Strophosoma *** the tested isolates the most virulent isolate was *** BIPESCO 5,which resulted in 80 % *** the field experiment ***,isolate BIPESCO 5,was applied to the soil as a conidial suspension against larvae of Strophosoma *** effect of the fungus on the target population was monitored at a weekly basis by counts of emerging adult weevils during their activity *** population of Strophosoma *** reduced by up to 60% in treated plots compared to control *** non-target effects of *** were studied by sampling insects and ticks from both treated and control *** days after treatment,two sampled insect orders(Hemiptera and Coleoptera)and ticks were found with prevalences of *** above 50%,compared to no infection in the insects collected from control *** in coccinellids were found as long as 277 days after ***,the effect on population level of non-target is still *** persistence of the fungus was documented by plating a soil suspension onto *** documented that conidia of *** could persist in the greenery plantation for at least 418 days after application.

关键词：高大冷杉温室微生物 Strophosoma象甲防治措施

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