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621.
Using a sample of 588 employees in 59 work teams, we tested a model that situates personal learning within the context of teams, viewing it as a joint function of teams' leadership climate (i.e., transformational leadership) and task characteristics (i.e., task routineness and task interdependence). Consistent with our hypotheses, we found that the positive relationships between transformational leadership climate and the two dimensions of personal learning (relational job learning and personal skill development) were moderated by the nature of the teams' tasks. Specifically, transformational leadership climate was more strongly associated with personal learning for members of teams working on tasks that were less routine, rather than more routine. However, no significant moderation was found for leadership climate and task interdependence. Our findings underscore the importance of taking into account the contextual conditions within which leadership influence occurs while also demonstrating the potential role that leaders can play in promoting employees' personal learning. Overall, our study bolsters theories that conceptualize adult learning as a transaction between people and their social environments and points to a practical need to match leadership styles with team task characteristics to unleash transformational leadership effects. Copyright © 2015 John Wiley & Sons, Ltd. 相似文献
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正The Journal of Environmental Sciences(JES)is honored to welcome Professors/Drs William A.Mitch,Jiuhui Qu,Susan D.Richardson,Jerald L.Schnoor,Hongxiao Tang,Shu Tao,and Hugh A.Tilson to serve on the Editorial Advisory Board(EAB).Their tremendous experience in scientific publications,leading expertise in topic areas pertinent to JES,diverse international networks/perspectives,and exemplary dedication to scientific excellence will guide and help the continuing healthy growth of JES. 相似文献
625.
The feed additive ractopamine hydrochloride was fortified at four concentrations into batch vials containing soils that differed in both biological activity and organic matter(OM).Sampling of the liquid layer for 14 days demonstrated that ractopamine rapidly dissipated from the liquid layer. Less than 20% of the fortified dose remained in the liquid layer after 4 hr,and recoveries of dosed ractopamine ranged from 8 to 18% in the liquid layer at 336 hr. Sorption to soil was the major fate for ractopamine in soil:water systems, i.e., 42%–51% of the dose at14 days. The major portion of the sorbed fraction was comprised of non-extractables; a smaller fraction of the sorbed dose was extracted into water and acetone, portions which would be potentially mobile in the environment. Partitioning coefficients for all soils suggested strong sorption of ractopamine to soil which is governed by hydrophobic interactions and cation exchange complexes within the soil OM. Ractopamine degradation was observed, but to mostly non-polar compounds which had a higher potential than ractopamine to sorb to soil. The formation of volatiles was also suggested. Therefore, despite rapid and extensive soil sorption,these studies indicated a portion of ractopamine, present in manures used to fertilize soils,may be mobile in the environment via water-borne events. 相似文献
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正We are very pleased to announce that five Associate Editors have joined the editorial team of the Journal of Environmental Sciences(JES).Professors/Drs.Yong Cai,Paul Lam,Jonathan Martin,Michael Plewa,and Po Keung Wong bring a wealth of expertise in environmental sciences.As preeminent scientists in their chosen areas of research,they have made outstanding contributions to the discipline of environmental 相似文献
627.
为适应新的海域使用功能要求,科学管理、严格保护海洋环境,结合全市海洋功能区划和总体发展规划,对天津市近岸海域环境功能区划进行调整。展现了调整方法、过程及成果。调整后的天津近岸海域环境功能区共分为四大类21个环境功能区,相比之前的区划,调整后的区划中一类环境功能区范围有较大缩小,二、三、四类近岸海域环境功能区面积均有增加。对本次区划调整过程中发现的主要问题进行了分析,在此基础上提出若干建议,包括将近岸海域环境功能区提升至战略高度,将《近岸海域环境功能区划分技术规范》上升为国家标准,修订《近岸海域环境功能区划分技术规范》及《近岸海域环境功能区管理办法》等。 相似文献
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采用Daniel趋势检验法对哈尔滨市近年来SO2、NO2和PM10年均浓度变化趋势分析,并对城市总人口与经济、产业结构、民用汽车保有量和能源状况五个城市发展因素进行数据统计分析,用SPSS探究城市发展过程中影响大气污染的因素及相关性.结果表明:浓度变化趋势是SO2明显上升;NO2缓慢上升;PM10整体明显下降,但在2013年点突增至了0.119 mg/m3.SO2与NO2显著相关,相关系数为0.533.经统计,哈尔滨人口经济发展、产业结构调整较为缓慢,全市民用汽车保有量增加并未对NO2浓度影响显著,能源结构依然以煤为主,虽然能源强度提升,但也存在着煤质、散煤的问题.哈尔滨市各城市发展因素与污染物浓度关联度不显著. 相似文献
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金属冶炼产生的废渣在无法采用资源化处置情况下需要安全填埋。安全填埋的前提是转移到具备优良地质条件并且采取了足够的工程防渗措施的场地,通常会遇到选址困难和二次污染等系列问题。以云南东北部某铅锌冶炼企业历史产生的废渣堆为研究对象,通过详细勘察研究渣堆下部基础地质和水文地质条件,并在渣堆下部及周边污染特征组分空间分布特征详细调查和分析的基础上,论证了该历史渣堆具有就地处置可行性的水文地质条件,可以通过系列地下水防污工程措施来控制地下水污染源。处置方案已经提交企业并处于工程实施阶段。该研究提出的解决问题的思路和技术方案对我国具有类似地质及水文地质条件的固废处置具有一定的参考价值。 相似文献