Means-ends decoupling at the state level and managerial responses to multiple organisational identities in Ukrainian research universities

Drawing on the model of managerial responses to multiple organisational identities (integration, aggregation, compartmentalisation, deletion and multivocality), this article explores managerial responses in Ukrainian research universities whilst means-ends decoupling takes place at the state level. The latter term implies that practices of state policies are disconnected from the state’s core goal of enhancing public welfare. Data is taken from recent interviews with 11 top managers from three Ukrainian research universities. Our findings reveal that the greater the institutional complexity experienced by the university and the more the top managers maintain confidence in practices and organisational identities that deviate from the global model of the research university, the greater the means-ends decoupling at the organisational level. The university that sustains the least degree of means-ends decoupling at the organisational level shows aggregation as the managerial response, while the university with the highest degree of means-ends decoupling is characterised by multivocality with underdeveloped identities of research at the international level and knowledge transfer. As a higher degree of means-ends decoupling at the organisational level implies a larger efficiency gap and significant diversion of both human and financial resources, a managerial response that lacks synergy, in our case multivocality, also leads to the above-mentioned negative consequences.     

发电机参数聚合及其动态仿真

同调发电机聚合参数的优化对等值后系统的动态特性有重要影响.目前频域拟合法是发电机参数聚合常用的方法,该方法是通过目标函数确定出等值发电机的多个参数,这些参数的准确性直接关系到等值的效果.对于目标函数中多个变量的寻优,为了避免局部寻优的结果,可以考虑将改进蚁群算法的模型应用于基于频域拟合的发电机动态参数聚合中.通过新英格兰39节点系统实际算例优化结果和动态仿真结果比较分析,验证了该方法在发电机参数聚合中的有效性.     

桔皮果胶降脂和抗凝的实验观察

普通饲料加入15％果胶连续饲养10d,能显著降低正常小鼠血清总胆固醇.用10％果胶分别拌入普通饲料与高脂饲料中喂养大鼠,结果不仅能使普通饲饵的大鼠血清TC、TG及TC/HDL-ch的比值显著下降,而且能降低高脂血大鼠的血脂,减少肝组织内的脂质沉积,同时还有降低高脂模型大鼠血浆粘度比,抑制血小板聚集的作用。     

加快楚雄工业园区建设 促进产业项目聚集发展

工业园区在一个地区工业化和城市化发展进程中发挥着不可替代的先导作用。楚雄工业园区作为发展工业经济的重要载体,如何加快其建设,促进项目聚集和产业聚集,培育优势特色产业,以支撑滇中楚雄特色大城市又好又快发展,这是当前楚雄市必须认真研究并着力推进的重大课题。     

顺排翅柱结构散热器在 LED 集渔灯上的应用研究

采用Fluent有限元分析软件进行模拟分析,研究了大功率LED集渔灯的顺排翅柱结构水冷散热器翅柱之间距与散热性能、均匀性的关系。在此基础上,提出了一种混合结构达到均匀性与散热性能兼顾的方案;同时研究了流速与散热器厚度的关系,以达到散热器的轻型化目的。     

基于蚁群算法的企业技术创新能力整合研究

整合是为了将扩张后得到的分散能力凝聚成核心能力而加以发挥,采用定量方法并结合定性方法研究能力整合问题,结合蚁群算法的特点,采用蚁群算法对开发、扩张后的技术能力集合进行筛选,构建能力整合平台,组成能力整合小组进行能力整合。     

数字经济、创新环境与城市创新能力

为了从城市层面定量验证数字经济对城市创新能力的赋能作用,基于2011—2016年286个主要地级市的样本数据,运用固定效应模型和分位数回归模型实证分析了数字经济对城市创新能力的影响以及人才集聚和金融发展的调节作用。这一结论在剔除特殊城市样本,选取历史数据作为工具变量,更换被解释变量等稳健性检验后仍然成立。研究表明：数字经济能够显著提升城市创新能力,对于创新能力越高的城市,数字经济对城市创新能力的赋能作用越明显,从而导致城市间创新能力差距扩大;创新环境（人才集聚和金融发展）在数字经济与城市创新能力二者关系中发挥了正向调节作用,即在人才集聚程度或金融发展水平较高的城市,数字经济对城市创新能力的赋能作用更为明显。政府应以人才集聚和金融发展为抓手,加速城市数字化转型与创新;此外,应重视数字经济会扩大城市间创新能力差距这一现象,在促进数字经济驱动城市创新发展过程中,加强城市间帮扶与合作,避免发展不平衡。     

基于内容聚合的博客辅助学习模式研究

随着网络信息技术和信息交流模式的更新和发展,学习者的学习交流方式出现新的变化,目的在于寻求更好的方式适应网络环境的学习变革。本文提出将零技术门槛的博客应用与内容聚合功能结合,构建方便快捷的博客辅助学习平台,形成以知识主题为单元的博客辅助学习网络社区,为学习者提供可行的基于内容聚合的辅助学习解决方案。     

Measuring robustness in rank aggregation based on the error-effectiveness curve

Rank aggregation is an obligatory operation for many tasks of democratic elections, product recommendation, and gene identification. While the awareness of imperfect information in input rankings would lead to unreliable aggregation results has promoted the robust rank aggregation to become an increasingly active research topic recently. In this study, we focus on the problem of robustness measuring of rank aggregation methods. We first provide an analytical framework of rank aggregation robustness, in which we generate rankings with adjustable imperfect information and observe the response of rank aggregation methods. In particular, to quantify the robustness of rank aggregation methods, we introduce the concept of error-effectiveness curve, which presents the aggregation effectiveness under different imperfect information scenarios, and describes the ability of each method in giving stable aggregation results. By doing so, a robustness measure of rank aggregation with random error is developed. Comprehensive experimental evaluations were conducted considering synthetic datasets with various levels of random error to demonstrate the validity of the proposed measure. Exact robustness was quantified for each evaluated rank aggregation methods, and significant robustness distinctions were achieved among them.     

Sulfation modification of dopamine in brain regulates aggregative behavior of animals

Behavioral plasticity and the underlying neuronal plasticity represent a fundamental capacity of animals to cope with environmental stimuli. Behavioral plasticity is controlled by complex molecular networks that act under different layers of regulation. While various molecules have been found to be involved in the regulation of plastic behaviors across species, less is known about how organisms orchestrate the activity of these molecules as part of a coherent behavioral response to varying environments. Here we discover a mechanism for the regulation of animal behavioral plasticity involving molecular sulfation in the brain, a modification of substrate molecules by sulfotransferase (ST)-catalyzed addition of a sulfonate group (SO₃) from an obligate donor, 3^′-phosphoadenosine 5^′-phosphosulfate (PAPS) to the substrates. We investigated aggregation behaviors of migratory locusts, which are well-known for extreme phase change plasticity triggered by population density. The processes of PAPS biosynthesis acted efficiently on induction of locust behavioral transition: Inhibition of PAPS synthesis solicited a behavioral shift from gregarious to solitarious states; external PAPS dosage, by contrast, promoted aggregation in solitarious locusts. Genetic or pharmacological intervention in the sulfation catalyzation resulted into pronounced solitarizing effects. Analysis of substrate-specific STs suggests a widespread involvement of sulfated neurotransmitters in the behavioral response. Dopamine in the brain was finally identified to be actively sulfate conjugated, and the sulfate conjugation enhanced the free DA-mediated behavioral aggregation. Similar results in Caenorhabditis elegans and mice indicate that sulfation may be involved more broadly in the modulation of animal aggregation. These findings reveal a general mechanism that effectively regulates animal social-like behavioral plasticity, possibly through sulfation-mediated modification of neural networks.