“‘天能杯’我与《生命的化学》”征文启事

《生命的化学》原名《生物化学通讯》,于1980年2月由中国生物化学会与上海生物化学会在上海共同创办。1981年定为现名《生命的化学》。迄今,《生命的化学》已走过30余年不平凡的历程。回顾30余年来,作为中国生物化学与分子生物学学会的会刊,《生命的化学》及时地报道和反映了生物化     

“‘天能杯’我与《生命的化学》”征文启事

《生命的化学》原名《生物化学通讯》,于1980年2月由中国生物化学会与上海生物化学会在上海共同创办。1981年定为现名《生命的化学》。迄今,《生命的化学》已走过30余年不平凡的历程。回顾30余年来,作为中国生物化学与分子生物学学会的会刊,《生命的化学》及时地报道和反映了生物化     

“天能杯”“我与《生命的化学》”征文启事

《生命的化学》原名《生物化学通讯》,于1980年2月由中国生物化学会与上海生物化学会在上海共同创办。1981年定为现名《生命的化学》。迄今,《生命的化学》已走过30余年不平凡的历程。回顾30余年来,作为中国生物化学与分子生物学学会的会刊,《生命的化学》及时地报道和反映了生物化学与分子生物学的研究动态,并介绍有关的研究新技术及学术活动信息(会讯等),已成为生化领域广大科研工     

《生命的化学》征稿

<正>创刊于1980年的《生命的化学》由中国生物化学与分子生物学会主办,是该学会会刊,双月刊,重点刊登综述性、进展性文章,及时报道和反映当今生物化学与分子生物学的研究动态,并介绍有关的研究技术及学术活动信息,为学会会员提供学术交流平台。本刊是中国科技核心期刊,被中国科学引文数据库(CSCD)、美国化学文摘(CA)、日本科学技术文献速报(CBST)等数据库收录。     

《生命的化学》征稿

<正>创刊于1980年的《生命的化学》由中国生物化学与分子生物学会主办,是该学会会刊,双月刊,重点刊登综述性、进展性文章,及时报道和反映当今生物化学与分子生物学的研究动态,并介绍有关的研究技术及学术活动信息,为学会会员提供学术交流平台。本刊是中国科技核心期刊,被中国科学引文数据库(CSCD)、美国化学文摘(CA)、日本科学技术文献速报(CBST)等数据库收录。     

《生命的化学》征稿

<正>创刊于1980年的《生命的化学》由中国生物化学与分子生物学会主办是该学会会刊双月刊,重点刊登综述性、进展性文章了及时报道和反映当今生物化学与分子生物学的研究动态,并介绍有关的研究技术及学术活动信息,为学会会员提供学术交流平台。本刊是中国科技核心期刊,被中国科学引文数据库(CSCD)、美国化学又摘(CA )、日本科学技术文献速报(CBST)等数据库收录。     

《中国生物工程杂志》征稿启事

<正>《中国生物工程杂志》(CHINA BIOTECHNOLOGY)是国家一级学会——中国生物工程学会会刊,月刊,创刊于1976年,由科技部中国生物技术发展中心、中国生物工程学会和中国科学院文献情报中心共同主办,是《中文核心期刊要目总览》核心期刊、中国科技论文统计源期刊(中国科技核心期刊)和中国科学引文索引(CSCD)核心期刊,并被美国化学文摘(CA)、英国《国际农业与生物科学研究中心》(CABI)等国内外著名检索系统和相     

《中国生物工程杂志》征稿启事

<正>《中国生物工程杂志》(CHINA BIOTECHNOLOGY)是国家一级学会——中国生物工程学会会刊,月刊,创刊于1976年,由科技部中国生物技术发展中心、中国生物工程学会和中国科学院文献情报中心共同主办,是《中文核心期刊要目总览》核心期刊、中国科技论文统计源期刊(中国科技核心期刊)和中国科学引文索引(CSCD)核心期刊,并被美国化学文摘(CA)、英国《国际农业与生物科学研究中心》(CABI)等国内外著名检索系统和相关领域文摘类期刊收录。     

《生命的化学》征稿启事

１、《生命的化学》是中国生物化学与分子生物学会的会刊和通讯，是国内外公开发行的综述性、通讯性的生物化学与分子生物学期刊，重点刊登综述性、进展性、报道性文章，同时也旁及技术和方法、生物化学与分子生物学家的传记轶事、书评、教学讨论、访问观感等内容。《生命...     

《中国生物工程杂志》征稿启事

正《中国生物工程杂志》(CHINA BIOTECHNOLOGY)是国家一级学会——中国生物工程学会会刊,月刊,创刊于1976年,由科技部中国生物技术发展中心、中国生物工程学会和中国科学院文献情报中心共同主办,是《中文核心期刊要目总览》核心期刊、中国科技论文统计源期刊(中国科技核心期刊)和中国科学引文索引(CSCD)核心期刊,并被美国化学文摘(CA)、英国《国际农业与生物科学研究中心》(CABI)等国内外著名检索系统和相     

Introducing the UNEP/SETAC methodological sheets for subcategories of social LCA

Purpose  

In May 2009, the Guidelines for Social Life Cycle Assessment of Products (the Guidelines) were launched at the occasion of the International Organization for Standardization (ISO) 26000 (Social Responsibility) meeting in Quebec City, Canada. Developed by a United Nations Environment Programme/Society of Environmental Toxicology and Chemistry (“UNEP/SETAC”) Life Cycle Initiative project group on Social Life Cycle Assessment (S-LCA), the Guidelines provide a framework to assess social impacts across product life cycles. A year later, the Methodological Sheets for the Subcategories of Social LCA (“the Methodological Sheets”) are being made available to support practitioners engaging in the field. The Methodological Sheets provide practical guidance for conducting S-LCA case studies by offering consistent, yet flexible assistance.     

大学化学知识融入本科核心课程生物化学的教学刍议

本科的化学基础知识是生命科学专业的核心课程"生物化学"的重要基础.本文在对生物化学与大学化学知识的密切关系进行学理分析的基础上,对无机化学、有机化学、分析化学和物理化学四门课中与生物化学内容密切相关的知识点进行梳理和总结.以肽键、酶作用机制、蛋白质纯化为例,给出化学基础知识对生物化学知识点的关联性.借助第二课堂启迪学生...     

Overcoming barriers to the broader implementation of life cycle thinking in business and public administration

Preamble. It is the Purpose of this Corner to serve as an information and communication channel as well as a discussion forum between science and policy in general, as well as between research and management, in business and public administration with regard to goods and services (products). It is the aim of this Corner to improve awareness of, and to help more effectively implement, life cycle thinking in all stages of decision making in business and public administration. This Corner ‘EU Life Cycle Policy and Support’ appears regularly. Contributions are invited and uninvited articles, as well as discussion comments from the LCA community. They outline practical experiences, information on new regulations, directives and other policy instruments, as well as important theoretical considerations. This first edition of the Corner provides, for discussion, a broad commentary on our underlying thoughts and ideas. This builds on ideas presented in e.g. the business context in the Life Cycle Management special edition (Int J LCA Special Issue 1, 2007), as well as recent policy developments in the European Union. This editorial is illustrated with example references related to each issue that were recently published in the journal (see [1–11]). Dr. David W. Pennington is responsible for the Environmental Assessment of Waste and the Sustainable Management of Natural Resources (ENSURE) in the European Commission’s Joint Research Centre (JRC), based at the Institute for Environment and Sustainability in Ispra, Italy. ENSURE complements conventional methods for waste and resource management with the development of recommended approaches, indicators, reference data, and case studies that facilitate life cycle thinking in European business and public administrations. The ENSURE team, consisting of about 15 staffs, provides independent support through computer simulations, modelling, expert workshops, and state-of-the-art laboratories. The responsibilities include the implementation of the European Platform on LCA, which is developing the Reference European Life Cycle Data System (ELCD) and associated Technical Guidance Documents. The team has successfully conducted a series of international workshops and carried out pilot studies with Member States in relation to Life Cycle Thinking and Waste Management. Activities now include the development of European Life-Cycle Guidelines for Waste Management, and the broader development of Life Cycle-based Sustainability Indicators.     

Life cycle assessment for the implementation of emission control measures for the freight traffic with heavy duty vehicles in Germany

Under consideration of the overall Life Cycle Inventory Analysis (LCI) results generated in the first step of this study and based on the February 1999 edition of ISO/DIS 14042 the Life Cycle Impact Assessment (LCIA) for the introduction of various emission control measures for freight traffic heavy duty vehicles in Germany was determined. For the examination of the several mandatory elements 11 impact categories related to the freight traffic and the LCI results were focussed, the LCI results were designed to these impact categories and with characterization factors of the 11 selected and recognized characterisation models the categories indicator endpoints were quantified. The optional elements for normalization and weighting were added to the analysis. Two reference values are used for normalizing the category indicator results. For the weighting step 8 recognized evaluation methods were selected with the aim to aggregate the LCI results to an overall value. The results enable plausible conclusions with regard to the ecological advantages and disadvantages of the use of each analysed emission control technology for heavy duty diesel vehicles. As no perfectly clear ranking can be distinguished for evaluation of the generated results and no correlation can be established to the economical effects of the corresponding measurements, it is necessary to complete the currently existing recommendation from the ISO/DIS-Standards with further parameters. Phase 1: Life Cycle Inventory Analysis. Int J LCA vn6 (4) 231–242(2001) Phase 3: Life Cycle Interpretation (DOI: http://dx.doi.oro/10.1065/ Ica2000.12.044.3)     

Effect of dietary sulfur amino acids on the taurine content of rat tissues

Summary.  The effect of dietary sulfur amino acids on the taurine content of rat blood and tissues was investigated. Three types of diet were prepared for this study: a low-taurine diet (LTD), normal taurine diet (NTD; LTD + 0.5% Met), and high-taurine diet (HTD; LTD + 0.5% Met + 3% taurine). These diets had no differing effect on the growth of the rats. The concentration of taurine in the blood from the HTD- and NTD-fed rats was respectively 1,200% and 200% more than that from LTD-. In such rat tissues as the liver, the taurine content was significantly affected by dietary sulfur amino acids, resulting in a higher content with HTD and lower content with LTD. However, little or no effect on taurine content was apparent in the heart or eye. The activity for taurine uptake by the small intestine was not affected by dietary sulfur amino acids. The expression level of taurine transporter mRNA was altered only in the kidney under these dietary conditions: a higher expression level with LTD and lower expression level with HTD. Received January 8, 2002 Accepted January 18, 2002 Published online August 20, 2002 Authors' address: Dr. Hideo Satsu, Laboratory of Food Chemistry, Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan, Fax: +81-3-5841-8026 E-mail: asatsu@mail.ecc.u-tokyo.ac.jp Abbreviations: HTD, high-taurine diet; NTD, normal taurine diet; LTD, low-taurine diet; TAUT, taurine transporter; CSA, cysteine sulfinate; CDO, cysteine dioxygenase; CSAD, cysteine sulfinate decarboxylase; PBS, phosphate-buffered saline; DIDS, 4,4′-diisothiocyanostilbene-2′,2′-disulfonic acid     

How green are supported ‘green’ business models? Time for the life cycle approach to enter public support programmes

The International Journal of Life Cycle Assessment - ‘Green’ business models1 have received considerable political and financial support, which for the public is a validation of the...     

Evaluation of the technical and environmental performances of extraction and purification processes of arabinoxylans from wheat straw and bran

A process for hemicelluloses fractionation and purification from wheat straw and bran has been investigated and technical considerations (yields, purity) have been coupled to environmental characterizations (water consumption, carbon dioxide emissions) in order to develop an environment-friendly process. Extraction by twin-screw extrusion gave a yield in arabinoxylans equal to 8.5% (weight of (arabinose + xylose) in the extract after fractionation/dry weight of the destarched bran). The extraction of 86 kg of straw and bran (with a ratio 6.2:1) with 5.8 kg of NaOH in pellet form resulted in the production of a complex extract containing 1.0 kg of arabinoxylan polymer, which required concentration and purification steps. Evaporation (EV) followed by ethanol precipitation (P) and freeze-drying (FD), gave a yield in hemicellulosic powder of 36.5% (dry weight of powder/dry weight of extract after liquid/solid separation) with a total sugar content equal to 48.4% but also used a large amount of ethanol. The other studied purification process was based on a combination of ultrafiltration (UF), anion exchange chromatography (CHR) and spray-drying (SD). It gave a yield in hemicellulosic powders of 24.6% and a total sugar content equal to 28.7%. The technical performances of the second process appear to be less attractive but with a lower energetic and ethanol consumption. Thus secondly the environmental impacts (water consumption and CO₂ emission) of the ultrafiltration step were quantified. Life Cycle Assessment data (Ecoinvent) were used to convert materials used for the infrastructure and energy consumed during functioning into carbon dioxide emissions and water consumptions. Results have shown that environmental impacts due to the operating conditions are higher than those relative to raw material involved in the installation. The study showed that this kind of approach allows the determination of optimum conditions for the ultrafiltration step.     

Recalled and current gender role behavior,gender identity and sexual orientation in adults with Disorders/Differences of Sex Development

The magnitude of sex differences in human brain and behavior and the respective contributions of biology versus socialization remain a topic of ongoing study in science. The preponderance of evidence attests to the notion that sexual differentiation processes are at least partially hormonally mediated, with high levels of prenatal androgens facilitating male-typed and inhibiting female-typed behaviors. In individuals with Disorders/Differences of Sex Development (DSD), hormonal profiles or sensitivities have been altered due to genetic influences, presumably affecting gender(ed) activity interests as well as gender identity development in a minority of the affected population. While continued postnatal androgen exposure in a number of DSD syndromes has been associated with higher rates of gender dysphoria and gender change, the role of a number of mediating and moderating factors, such as initial gender assignment, syndrome severity and clinical management remains largely unclear. Limited investigations of the associations between these identified influences and gendered development outcomes impede optimization of clinical care. Participants with DSD (n = 123), recruited in the context of a Dutch multi-center follow-up audit, were divided in subgroups reflecting prenatal androgen exposure, genital appearance at birth and gender of rearing. Recalled childhood play and playmate preferences, gender identity and sexual orientation were measured with questionnaires and semi-structured interviews. Data were compared to those of control male (n = 46) and female participants (n = 79). The findings support that (a) prenatal androgen exposure has large effects on (gendered) activity interests, but to a much lesser extent on sexual orientation and that (b) initial gender of rearing remains a better predictor of gender identity contentedness than prenatal androgen exposure, beyond syndrome severity and medical treatment influences. Nonetheless, 3.3% of individuals with DSD in our sample self-reported gender dysphoria from an early age and changed gender, which further underlines the need for thorough long- term follow-up and specific clinical support.     

从《生物多样性公约》资金机制战略目标变迁解析生物多样性热点问题

全球环境基金是《生物多样性公约》的唯一资金机制, 它按照《生物多样性公约》要求和基金自身的政策导向为发展中国家和经济转型国家提供资金支持。从其试点期到当前的第7增资期, 全球环境基金在生物多样性领域的战略目标发生了多次变迁, 研究这些资金机制战略目标所涉及的生物多样性热点问题的变迁情况对未来相关工作开展具有一定参考意义。本文梳理了各增资期生物多样性领域战略目标所涉及的生物多样性热点问题, 对每个热点问题在全球环境基金各增资期中资金量和内容的变迁情况进行了分析, 并就中国当前情况与之进行比较, 进而提出了加强对保护地中生态系统代表性的考虑、增强保护地资金可持续性、全面推动生物多样性主流化、加强生物安全相关领域研究、推进遗传资源获取和惠益分享立法并注重知识管理、加强新问题新挑战的应对、深化资金机制研究等建议, 以期为开展《生物多样性公约》履约、生物多样性管理和研究工作提供参考。     

Life Cycle assessment for the implementation of emission control measures for the freight traffic with heavy duty vehicles in germany

This Life Cycle Interpretation Analysis describes the third phase of the Life Cycle Assessment (LCA) for the implementation of emission control measures for the freight traffic with heavy duty vehicles (HDV) in Germany. It is based on the December 1999 edition of ISO/DIS 14043. Special emphasis was placed on the determination of the ecological effectiveness and the ecological category indicator effectiveness for each emission control scenario to compare the overall ecological-economical effect of the emission control measures investigated. Following these steps the main factors influencing the Life Cycle Impact Assessment (LCIA) results were identified. As a result of these analyses only a small number of influencing factors were detected having an influence on the LCIA result of more than 93%. Another result was the determination of the main influence factors from the different phases of the Product Life Cycle (PLC) of the selective catalytic reduction (SCR) system on the total weighting results of the bulk environmental load. The influence of the Life Cycle Inventory Analysis (LCI) results on the final Category Indicator Effectiveness result was analysed. The contribution of the different phases of the PLC of SCR systems on the total result of the LCI with regard to the bulk environmental load was determined. A completeness and sensitivity check was carried out. The results of the study enable plausible conclusions and recommendations, the absolutely essential one being the introduction of an consumption-optimized Diesel engine with SCR systems by the reference year 2005 for ecological and economical reasons.