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Commission for the Management ＆ Application of Geoscience Information （CGI）

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Episodes 2006年第3期29卷 231-233页

作者： Dr. Kristine Asch ian Jackson Bundesanstalt fiir Geowissenschafien und Rohstoffe （Federal Institute for Geosciences and Natural Resources） Stilleweg 2 D - 30655 Hannover Germany British Geological Survey Kingsley Dunham Centre Keyworth Nottingham NG12 5GG UK

An introduction to CGI Information in general and digital information in particular, underpins all of the IUGS strategic objectives. CGI is helping to address a growing need to improve the quality and range of both information content and the applications that are used to acquire, analyse, process and disseminate geoscience data. It will do this by the exchange of knowledge and best practice and the support for standards. CGI is a new （strictly speaking, re-activated） Commission, founded by the lUGS in late 2002 following the demise of an earlier information Commission, COGEOINFO. Early tasks for CGI were to establish its objectives, set up its structure and modus operandi, elect its Council and establish a web presence. The new Commission was formally ratified by the IUGS at the IGC in Florence in 2004 and also held its first full Open Meeting there.

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响应面法优化超声辅助提取草果生物碱的工艺研究

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食品科技 2024年第8期49卷 218-227页

作者：张云翠赵艳汉丽香柳双凤田洋高晓余云南省精准营养与个性化食品制造重点实验室云南昆明650201 食药同源资源开发与利用教育部工程研究中心云南昆明650201 云南农业大学食品科学技术学院云南昆明650201 云南农业大学科学技术处云南昆明650201

目的:优化草果生物碱的定量检测方法及提取工艺条件。方法:以盐酸小檗碱为对照品,采用单因素试验设计优化酸性染料比色法定量草果生物碱的检测条件;以总生物碱含量为指标,分别考察乙醇体积分数、料液比、超声功率、超声时间和超声温度5... 详细信息

目的:优化草果生物碱的定量检测方法及提取工艺条件。方法:以盐酸小檗碱为对照品,采用单因素试验设计优化酸性染料比色法定量草果生物碱的检测条件;以总生物碱含量为指标,分别考察乙醇体积分数、料液比、超声功率、超声时间和超声温度5个因素对草果生物碱提取率的影响,并在此基础上通过响应面试验设计优化提取工艺条件;随后探究酸提碱沉pH值对有机溶剂法萃取草果生物碱得率的影响。结果:草果生物碱的检测方法为样品液1 mL、缓冲溶液为pH2.0的磷酸盐2 mL、溴甲酚绿300μL、氯仿萃取液1 mL、无水硫酸钠0.5 g混匀后静置30 min,取氯仿层于410 nm波长处检测;草果生物碱的最佳提取工艺为乙醇体积分数为65%、料液比为1:12(g/mL)、超声功率160 W,有机溶剂萃取酸性溶液pH值为4.0,碱性溶液pH值为10.0,该工艺条件下,草果生物碱的提取率为0.818%。结论:优化后的草果生物碱检测方法精密度高,提取工艺操作简单、工艺参数可靠、提取效果良好,为草果生物碱的深入研究提供了重要基础。

关键词：草果生物碱超声辅助提取响应面法工艺优化

Assistant Anode in a Cathodic Arc Plasma Source

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Chinese Physics Letters 2001年第8期18卷 1103-1104页

作者： ZHANG Tao ZHANG Hui-Xing ian G.Brown Paul K.Chu Beijing Radiation Center Institute of Low Energy Nuclear PhysicsBeijing Normal UniversityBeijing 100875 Department of Physics and Materials Science City University of Hong Kong83 Tat Chee AvenueKowloonHong Kong Lawrence Berkeley National Laboratory University of CaliforniaBerkeleyCA 94720U.S.A.

The performance and characteristics of a cathodic arc plasma source,consisting of a titanium cathode,an anode with and without a tungsten mesh,and a coil producing a focusing magnetic field between the anode and cathode,are *** high transparency and large area of the mesh allow a high plasma flux to penetrate the anode from the cathodic *** mesh helps to decrease the arc resistance and the ignition voltage of the cathodic arc in the focusing magnetic field,and increase the life of the *** means that the source makes the cathodic arc easily and greatly stabilized during the operation when a focusing magnetic field exists in the source.

关键词： cathodic resistance titanium

Stem cell therapy for heart failure:Medical breakthrough,or dead end?

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World Journal of Stem Cells 2021年第4期13卷 236-259页

作者： Mathieu Rheault-Henry ian White Diya Grover Rony Atoui Northern Ontario School of Medicine Sudbury P3E 2C6OntarioCanada Ross University School of Medicine St.Michael BB11093Barbados Division of Cardiac Surgery Health Sciences NorthNorthern Ontario School of MedicineSudbury P3E 3Y9OntarioCanada

Heart failure continues to be one of the leading causes of morbidity and mortality *** infarction is the primary causative agent of chronic heart failure resulting in cardiomyocyte necrosis and the subsequent formation of fibrotic scar *** pharmacological and non-pharmacological therapies focus on managing symptoms of heart failure yet remain unable to reverse the underlying *** transplantation usually cannot be relied on,as there is a major discrepancy between the availability of donors and *** a result,heart failure carries a poor prognosis and high mortality *** the heart lacks significant endogenous regeneration potential,novel therapeutic approaches have incorporated the use of stem cells as a vehicle to treat heart failure as they possess the ability to self-renew and differentiate into multiple cell lineages and *** review will discuss past,present,and future clinical trials,factors that influence stem cell therapy outcomes as well as ethical and safety *** and clinical studies have shown a wide spectrum of outcomes when applying stem cells to improve cardiac *** may reflect the infancy of clinical trials and the limited knowledge on the optimal cell type,dosing,route of administration,patient parameters and other important variables that contribute to successful stem cell ***,the field of stem cell therapeutics continues to advance at an unprecedented *** remain cautiously optimistic that stem cells will play a role in heart failure management in years to come.

关键词： Stem cells Heart failure Myocardial infarction Regeneration Remodeling Ethical issues

Automated bolting and meshing on a continuous miner for roadway development

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International Journal of Mining Science and Technology 2013年第1期23卷 55-61页

作者： van Duin Stephen Meers Luke Donnelly Peter Oxley ian University of Wollongong Northfields Avenue Gwynneville NSW Australia

Automated installation of primary roof support material can potentially increase productivity and operator safety in the roadway development process within underground coal mining. Although the broader manufacturing sector has benefited from automation, several challenges exist within the Australian underground coal industry which makes it difficult to fully exploit these technologies. At the University of Wollongong a series of reprogrammable electromechanical manipulators have been designed to overcome these challenges and automatically handle the installation of roof and rib containment consumables on a continuous miner. The automated manipulation removes personnel from hazards in the immediate face area, particularly those associated with working in a confined and unstable working environment in close proximity to rotating and moving equipment. In a series of above ground trials the automated system was successfully demonstrated without human intervention and proven to be capable of achieving cycle times at a rate of 10 m per operating hour, consistent with that required to support high capacity longwall mines. The trials also identified a number of refinements which could further improve both cycle times and system reliability when considering the technology for underground use. The results have concluded that conventional manual handling practices on a continuous miner can be eliminated, and that the prototypes have significantly reduced the technical risk in proceeding to a full underground trial.

关键词： Automation Robotics Roadway development Manipulation Roof support

The genetic polymorphism of Plasmodium vivax genes in endemic regions of Thailand

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Asian Pacific Journal of Tropical Medicine 2011年第12期4卷 931-936页

作者： Varakorn Kosaisavee ian Hastings Alister Craig Usa Lek-Uthai Department of Parasitology and Entomology Faculty of Public HealthMahidol UniversityBangkokThailand Faculty of Graduate Studies Mahidol University.NakornpathomThailand Department of Molecular and Biochemical Parasitology.Liverpool School of Tropical Medicine Pembroke PlaceLiverpoolUK

Objective:To investigate the genetic polymorphism of Plasmodium vivax(***) PvCSP and PvMSP1 genes from field isolates at four endemic regions(North,East,West and South) of ***:The 152 *** injected cases from dried blood spots were DMA extracted and confirmed by species-specific primer sets using multiplex PCR *** fragments F2 and F3:PvCSP were gcnotvped using RFLP-PCR ***:Totally amplified DNA which was multiple genotypes for PvMSP1 F2 and PvMSP1 F3 were 12.50%and 8.55%.respectively while PvCSP was 3.95%.The overall frequency of multiple genotypes was 25%.There were 12 allele tvpes of PvMSP1 F2 using AluI enzyme digestion and 8 size variations were found in P\MSP1 *** isolates from western region was highly genetic diverse when compare among all *** predominant variant type of PvCSP gene was \ K2I0 ***:The niulliple genotypes are common found in Thailand and it might hide the real *** does not have extensive genetic diversity in this *** marker due to multiple genotypes is difficult In be *** multiple genotypes findings might stem from population migration and vector species findings.

关键词： Genetic polymorphism Plasmodium vivax PvMSP1 PvCSP

Antenna and Base-Station Diversity for WSN Livestock Monitoring

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Wireless Sensor Network 2009年第5期1卷 383-396页

作者： Konstantinos SASLOGLOU ian A. glover Hock Guan GOH Kae Hsiang KWONG Michael P. GILROY Christos TACHTATZIS Craig MICHIE Ivan ANDONOVIC 不详

Antenna and base-station diversity have been applied to a wireless sensor network for the monitoring of live-stock. A field trial has been described and the advantage to be gained in a practical environment has been a... 详细信息

关键词： Antenna Diversity Base Station Diversity Animal Monitoring Wireless Sensor Networks Distribution Rayleigh Distribution Fading

Can a Purposeful Walk Intervention with a Distance Goal Using an Activity Monitor Improve Individuals'Daily Activity and Function Post Total Hip Replacement Surgery.A Randomized Pilot Trial

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Cyborg and Bionic Systems 2023年第1期4卷 1-13页

作者： Shayan Bahadori Jonathan Mark Williams Sarah Collard and ian Swain Orthopaedic Research Institute Bournemouth UniversityBournemouthDorsetUK Faculty of Health and Social Sciences Bournemouth UniversityBournemouthDorsetUK Faculty of Science and Technology Bournemouth UniversityPooleDorsetUK

Individuals have increasingly high expectations of return to activity following total hip replacement(THR)*** current literature demonstrates marked improvements in pain following ***,there is limited evidence showing objective improvement in daily *** randomized pilot trial aimed to determine the effect of an intervention where outdoor walking distance is used as a goal to increase daily activity of older adults using a commercial activity monitor at 3 to 6 months post *** suggested that the participants in the intervention group had higher activity levels after THR,compared to those in the control *** Cohen’s effect sizes were larger for the changes in the gait,Hip Disability and Osteoarthritis Outcome Score,and Psychosocial Impact of Assistive Devices Scale data in the intervention group in contrast to the control ***,further research with a larger sample size is required to provide tangible evidence on the significance of the effect of the purposeful walk compared to step count.

关键词： return effect sizes

Effect of arsenic contaminated irrigation water on Lens culinaris *** toxicity assessment using lux marked biosensor

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Journal of Environmental Sciences 2012年第6期24卷 1106-1116页

作者： F.R.Sadeque Ahmed ian J.Alexander Mwinyikione Mwinyihija Ken Killham Department of Environment (Climate Change) E-16 AgargaonDhakaBangladesh School of Biological Sciences Institute of Biological and Environmental SciencesUniversity of AberdeenAberdeenAB24 3UUUK Kenya Leather Development Council P.O.Box 14480NairobiKenya Remedios Limited Balgownie Technology CentreCampus 3 Balgownie DriveAberdeenAB22 8GWUK

Contamination of irrigation water represents a major constraint to Bangladesh agriculture,resulting in elevated levels in the terrestrial *** bacterial biosensor technology has previously been used to measure the toxicity of metals in various environmental *** arbuscular mycorrhizal fungi have their most significant effect on phosphorus uptake,but showed alleviated metal toxicity to the host *** study examined the effects of arsenic and inoculation with an arbuscular mycorrhizal fungus,Glomus mosseae,on lentil （Lens culinaris ***）.Plants were grown with and without arbuscular mycorrhizal inoculum for 9 weeks in a sand and terra-green mixture （50：50,V/V） and watered with five levels of arsenic （0,1,2,5,10 mg As/L arsenate）.The results showed that arsenic addition above 1 mg/L significantly reduced percentage of mycorrhizal root *** further analysis a close relationship was established with the vegetative and reproductive properties of lentil （***） plants compared to the percentage bioluminescence of the soil ***,arbuscular mycorrhizal fungal inoculation reduced arsenic concentration in roots and *** concentrations of arsenic （5,10 mg As/L arsenate） reduced the mycorrhizal efficiency to increase phosphorus content and nitrogen ***,this study showed that increased concentration of arsenic in irrigation water had direct implications to the lentil （***） plants overall *** the use of bioassay demonstrated that mycorrhiza and clay particle reduced arsenic bioavailability in soil.

关键词： bioassay contaminated water lentil trace metals vegetative response