抑制剂ADS-J1和ADS-J2与艾滋病病毒蛋白gp41的结合机理

为分析和解释2个小分子抑制剂ADS-J1和ADS-J2与艾滋病病毒蛋白gp41的抑制机理,通过采用理论计算的方式把抑制剂和gp41蛋白疏水性空穴对接,得到了可能的结合方式,并通过采用分子动力学和MM/PBSA相结合的方法,确定蛋白质和抑制剂的具体结合方式和结合自由能,并且获得了抑制剂和蛋白的精确结合构型和相互作用力,明...     

Die arbeitsrechtliche Stellung von Lehrbeauftragten im Lichte der Entscheidung VwGH 2005/08/0137 vom 25.4.2007

Die im April diesen Jahres ergangene Entscheidung des VwGH zur Einordnung von Lehrbeauftragten an Fachhochschulen aus arbeits-, sozialversicherungs- und einkommensteuerrechtlicher Sicht hat die Diskussion zur Einordnung der Dienstverhältnisse mit Lehrbeauftragten neu entfacht. Im Rahmen des Aufsatzes beleuchten die Autoren den historischen Hintergrund der Einordnung von Lehraufträgen aus steuer- und sozialversicherungsrechtlicher Sicht und legen dar, wie es zur Einordnung der freien Dienstverhältnisse an Fachhochschulen als "echte" Dienstverträge in sozialversicherungsrechtlicher Sicht gekommen ist. Abschließend wird in Hinblick auf die neueste VwGH-Entscheidung kritisch dargelegt, warum Lehrbeauftragte keine "echten" Dienstnehmer aus arbeitsrechtlicher Sicht sein können.     

Der Vorschlag zur Rektorswahl und seine (Un-)Anfechtbarkeit

In der bisherigen praktischen Umsetzung der Regelungen des UnivG 2002 zur Rektorswahl sind mehrfach Probleme aufgetreten, die vor allem vom suboptimalen Zusammenspiel zwischen vorschlagendem Senat und auswählendem Universitätsrat herrühren. Angesichts der für 2009 in Aussicht genommenen umfangreicheren Novellierung des UnivG 2002, sollen hier einige diesbezüglich zentrale Problemlagen behandelt werden.     

How do global manufacturing shifts affect long-term clean energy innovation? A study of wind energy suppliers

Clean energy technologies are important for meeting long-term climate and competitiveness goals. But clean energy industries are part of global value chains (GVCs), where past manufacturing shifts from developed to emerging economies have raised questions on a decline in long-term innovation. Our research centers on how geographic shifts in the GVC shape long-term innovation, i.e., innovation in a time frame within which “mission-oriented”, societal, or firm strategic objectives need to be met rather than tactical, near-term market competitiveness alone. Focusing on wind energy, we introduce a temporal measure to distinguish between long-term and short-term innovation, applying natural language processing methods on patent text data. We consider supply-side value chain factors (i.e., manufacturing supplier relationships with original equipment manufacturers (OEMs)) and demand-side factors (i.e., policy-induced clean energy market growth), shaping the patenting activities of 358 global specialized wind suppliers (2006–2016). Our findings suggest that the wind industry did not suppress long-term innovation during manufacturing shifts, in this case to China. After 2012 when China developed a large wind market, long-term innovation increased by 80.7% in European suppliers working with non-European OEMs (including Chinese) and by 67.2% in Chinese suppliers working with non-Chinese OEMs. Our results highlight the importance of coupling international manufacturing relationships with sizeable local demand for inducing long-term innovation. Our results advance research in innovation, GVCs, and green industrial policy with implications for several industries that can contribute to climate mitigation.     

从2009年第41届世界体操锦标赛分析我国男子体操实力

采用文献资料法、观察法、数理统计和比较法,对第41届世界体操锦标赛男子运动员比赛成绩进行对比和分析,结果表明：中国队以6金2银1铜总计9块奖牌雄居榜首,继续保持世界体坛霸主地位;单项比赛优势明显,新人发挥出色,收获3金1银1铜;中国男队全能实力急剧下滑,全能人才的匮乏是中国男队今后需要解决的一大难题。     

The impact of financial inclusion on digital payment solution uptake within the Gulf Cooperation Council Economies

Recognizing the role of society in the sustainability of payment system innovation through the quadruple helix framework, this study analyzes the causal influence of demand-side financial inclusion indicators on society's uptake of digital payment solutions (DPS) within the regional economy of the Gulf Cooperation Council. To this end, the present study relies on data extracted from Global Findex surveys (in 2014 and 2017), as well as the economic theory of random utility maximization, to model individuals' DPS uptake decisions “ceteris paribus.” The maximum likelihood estimation revealed no gender-based gradient in DPS uptake behaviors; additionally, financial inclusion indicators such as transaction account ownership and debit card ownership did not significantly influence endogenous or exogenous DPS uptake decisions between 2013 and 2017. However, all remaining financial inclusion indicators did significantly influence DPS uptake. Assessing these findings through the lens of open innovation and the ongoing efforts from the Arab Regional Payment System project, which seeks to expand financial inclusion by facilitating access to transaction accounts, there is reasonable evidence to suggest that complementary financial inclusion policies addressing the use dimension of DPS (i.e., extending access to saving and borrowing, along with digital payroll practices for both private and public enterprises) would contribute to more effective policy on financial inclusion in the region.     

介孔Ce-MCM-41的合成及光催化降解活性研究

以十六烷基三甲基溴化铵（CTAB）为模板剂,采用水热合成法制备了稀土金属离子Ce掺杂的六方相有序介孔材料Ce-MCM-41,并用N2吸附、XRD、FT-IR、UV-Vis对样品结构进行了表征,将该材料用于模拟太阳光（500W氙灯）照射下甲基紫和亚甲基蓝两种染料的光催化降解研究,研究结果表明,该材料能显著降解上述两种染料,光催化降解效率高达82.4％和75.4％,具有很好的应用和开发前景.     

MCM-41分子筛负载磷钨酸催化H2O2氧化环已酮/环已醇合成己二酸

在无溶剂、无相转移催化剂条件下,用磷钨酸做为催化剂。先用MCM-41分子筛作为催化剂载体,30%H2O2作氧源,在一定条件下可以将环已醇/环己酮混合物氧化成己二酸。讨论了30%H2O2的量、反应时间、反应温度、催化剂用量、草酸对己二酸产量的影响,以及催化剂回收重复利用。结果表明：用MCM-41分子筛负载80%的磷钨酸作催化剂反应7h,己二酸的最大产率高达89.17%。具有很好的应用价值。     

Is parental involvement lower at larger schools?

Parents who volunteer, or who lobby for improvements in school quality, are generally seen as providing a school-wide public good. If so, straightforward public-good theory predicts that free-riding will reduce average involvement at larger schools. This study uses longitudinal data to follow families over time, as their children move from middle schools to high schools, thus netting out unobservable differences among families. Increases in school size result in significant reductions in parental involvement, although the magnitude of the effect is small. If parents experience a doubling in school size, they are 2 percentage points less likely to increase their contacts with the school, and 5 percentage points less likely to increase their volunteering. A continuous-treatment propensity-score method tests whether the results are driven by selection into treatment. The parental contact results are robust to this test, while the volunteer results are not. Also, there is some evidence that parents see their involvement as a substitute, rather than a complement, for perceived school quality.     

核孔蛋白gp210研究进展

核孔蛋白gp210是核孔复合体中具有结构功能和调控功能的组成成分之一,本文简要介绍gp210的结构特征,并对其主要功能进行了论述。