Differentiating the geographical origin of Tunisian indigenous lamb using stable isotope ratio and fatty acid content

The efficacy of isotope ratio mass spectrometry (IRMS) in tracing lamb production systems was investigated for four farming systems in the Tunisian North-West: Ain Draham and Fernana, characterised by woody pasture, and Amdoun and Joumine, characterised by herbaceous pasture. Mixed breed lambs aged 3.5–5 months were reared under semi-extensive and extensive systems. Samples of Longissimus dorsi muscle were taken from eight lambs for each farming system for stable IR assessment of the five main bio-elements in the protein and fat fractions of lamb and for fatty acid (FA) determination. Using partial least squares discriminant analysis (PLS-DA) the IR profiles of Tunisian lamb types allowed correct assignment of the training meat samples to the area of origin. Inclusion of the FA profile in the classification model slightly improved its evaluation performance for the individual farming systems; the average accuracy increased by 2%–94%. However, the differences between samples were not sufficiently wide to be validated by an external set of samples including 10 Italian lamb types. A broader scale geographical signature discriminating lambs from the Amdoun area, the rest of north-west Tunisia and Italy appeared to be workable, although some foreign lamb types from neighbouring Mediterranean regions such as Sicily were misclassified as Tunisian.     

人参无公害农田栽培技术体系及发展策略

随着国家对伐林栽参可用林地的逐步限制,农田栽参将成为人参种植产业发展的主要模式,而无公害生产是未来人参产业发展的重要方向。通过多年农田栽参研究数据及产区调研结果,该文制订了人参无公害农田栽培技术体系。该体系包括人参生态适宜性数值区划确定农田栽参栽培用地、无公害种植方法、田间管理、病虫害防治、采收加工及质量控制等内容。该文提出农田栽参土壤修复,建立病虫害综合防治平台,培育适宜农田栽培的抗逆新品种,建立人参无公害种植产地溯源系统等技术策略,以促进农田栽参种植产业的健康可持续发展。     

焦虑症中医理论溯源及其相关病症评述

分析焦虑症的中医理论溯源及其与中医相关病症的关系,探索和认识焦虑症的中医病因病理、治疗方法及其预后转归等,为焦虑症的中医文献研究和临床综合疗效提供参考。     

2003～2007年国内蒙医、蒙药文献计量学分析

目的:通过对2003～2007年间国内蒙医、蒙药文献发表情况的分析,明确我国近年来在蒙医、蒙药方面的研究状况.方法:采用网络版CBMs,分别以"蒙医"和"蒙药"为检索主题词以及相应副主题词进行检索,同时采用限定检索的方式对相关主题词文献进行检索.结果:2003～2007年间,国内发表关于蒙医、蒙药文献分别为461篇和806篇,蒙医文献量呈逐年递增趋势,而蒙药文献量无明显变化;蒙医、蒙药文献研究方向分布广泛,但文献最多项均为治疗应用方面;蒙医、蒙药主题文献量最多期刊均为<中国民族医药杂志>、<中国民族民间医药杂志>;蒙医、蒙药主题文献著者数量庞大.结论:蒙医、蒙药文献的研究状况呈现多元化分布趋势,研究领域正在拓展.该分析结果将为蒙医、蒙药的相关科研人员及临床工作者提供参考.     

浅谈对医用磁共振成像系统的计量性能进行检测的重要性

本文将结合医用磁共振成像系统(MRI)在医学影像学的临床应用,浅谈对其所具有的关键计量性能及指标进行检测的重要性。     

利用国际标准条形码，实现高值耗柱全程可追溯管理

本文总结了南京军区福州总医院高值耗材管理的基本情况和存在的问题，简要介绍两个国际标准条形码编码体系GSl和HIBC，通过引入国际标准条形码，建立耗材产品信息库，实现高值耗材全程可追溯管理。并对项目实施的经验和体会谈了几点看法。     

数字心电图机检定中常见问题及解决方法

目的通过非维修的手段解决心电图机检定中的一些常见问题。方法采用EGC-1C检定仪，参照JJG1041—2008检定规程对心电图机进行检定，分析检定中出现的问题并找出相应的解决方法。结果通过改变心电图机的设置解决了设置问题，通过咨询相关专家或生产厂家以解决设计问题。结论心电图机要严格按照检定规程进行检定，对于检定过程出现问题的仪器不要急于维修，应先对问题进行分析进而找出相应的解决方案。     

Quality standards in Biobanking: authentication by genetic profiling of blood spots from donor's original sample

The field of Biobanking requires extensive work to maintain traceability of samples. However, sometimes the necessity to authenticate a sample may arise. To address these circumstances, we herein present a method for authenticating derivatives by using a blood spot from each donor, attached to a sample authentication form, by means of genetic profiling. Blood spots are collected at the time a blood sample is donated at a health centre and before processing the blood sample at the biobank. To test the validity of our approach over time, we analyzed 26 blood spots stored at room temperature in our facilities for more than 15 years. DNA was successfully extracted from the three storage materials tested in this study and 15 STR markers plus amelogenin were subsequently analyzed. The storage of a small blood spot attached to a sample authentication form proved to be efficient for genetic profiling and, therefore, may constitute a long-lasting (at least 15 years), cost-effective and effortless approach for genetic authentication of samples in biobanks.     

标准物质特性分析和量值溯源中应注意的事项

目的为药检系统仪器设备计量工作中正确使用标准物质提供参考。方法对标准物质稳定性、均匀性和赋值性的特性进行比较、分析,对使用过程中的注意事项进行阐述。结果与结论仪器设备是药品检验检测能力的重要硬件保障,标准物质是十分重要而普遍使用的量值溯源方式。了解标准物质的特性并正确使用,在仪器检定/校准和期间核查中减少偏差,为药检系统出具严谨、科学和公正的检验报告提供保证。     

区域化消毒供应中心建设与管理

目的:提高基层医院物品消毒灭菌的质量.方法:建立区域化消毒供应中心,配备工作人员,完善工作流程和质量控制,将23家医院需要消毒灭菌的物品进行统一集中管理.结果:实行消毒供应中心区域化管理,能够确保物品的清洗、消毒及灭菌的质量,节约资源、降低成本、提高管理效率,有效控制医院感染发生,确保医疗质量和医疗安全.结论:建立区域...