蒲河新城:拉开沈北大开发序幕

为整合沈阳北部地区的土地、产业、人才资源,使沈北新区迅速崛起,蒲河新城管理委员会近日成立。新规划的蒲河新城东邻棋盘山、世博园,西接环北经济区,北连沈北腹地,南靠沈阳母城,其范围是新规划的北三环以南沈北新区区域,总面积270平方     

The gender wage gap,weather, and intimate partner violence

Review of Economics of the Household - Two theories of intimate partner violence (IPV) have differing predictions on how women’s bargaining power affects rates of IPV. If an abuser enjoys and...     

公共支出绩效管理的国际比较与借鉴

提升公共支出绩效既体现了现代预算管理的变革趋势,又符合加强绩效管理的要求,是中国公共财政建设的改革方向。借鉴市场经济国家公共支出绩效管理的经验,需要结合具体国情,循序渐进地引入绩效管理的理念与制度框架,适时建立绩效评价结果与预算编制有机结合的预算约束机制。     

Trajectory of Life Satisfaction and its Relationship with Subjective Economic Status and Successful Aging

The aim of the study was to explore the relationship between subjective economic status and indicators of successful aging to life satisfaction trajectories among the elderly in Taiwan. Data were from the four waves of “Survey of Health and Living Status of the Elderly in Taiwan”. Hierarchical linear modeling was conducted. Subjective economic status was measured by childhood economic status and time-varying economic satisfaction. Time-varying physical, mental, and social successful aging variables and demographics were also used to describe the trajectory of life satisfaction. Life satisfaction showed a slightly decreasing but generally stationary trend across time. The concurrent economic satisfaction was associated with life satisfaction trajectory, but childhood economic status was not significant. The time-varying depressive symptoms, cognitive function and social support were related to the life satisfaction trajectory. Policy on the elderly should take particular account of the economic security, mental health, and social support of the elderly.     

社会网络与女性职业性别隔离

社会学理论认为,人们的社会网络具有性别偏好,这导致了男女求职结果的性别分化,并部分地解释了职业的性别隔离问题。本文根据2009年8大城市调查数据,分析了我国城市女性的职业性别隔离在何等程度上受社会网络的影响。分析结果表明:8大城市在职者的社会网络具有性别同质化倾向,女性和男性更多地与同性亲朋交往;使用强关系成功求职的女性往往进入性别隔离的女性职业;使用弱关系成功求职的女性能摆脱职业性别隔离趋向,进入中性职业或男性职业。     

A low cost technique to evaluate usable product for small manufacturing companies: a case study on Garcia robot

A usability evaluation technique to evaluate user interfaces is introduces. The technique is effective and affordable for small manufacturing companies. By using this technique, an integration of users' feedbacks and some usability concepts, a product can be 3 times easier to use among potential users and more than 5 times easier to use among motivated users. In addition, the technique can be implemented with the company's employees as participants.     

集体记忆与老字号的商道传承——以“义顺”商号为例

建号于1925年的“义顺”商号发展历程表明,老字号企业商道形成的过程也是老字号集体记忆内容的建构过程.老字号企业的集体记忆,既在社会环境中创造集体认同感,连接过去获得老字号商道的传承,又在群体的框架中去创新,重新建构老字号商道的时代性.老字号的商道传承,可以用集体记忆的时间机制实现商道的代际传递,用集体记忆的空间机制实现商道影响力的扩大,用集体记忆的升华机制实现商道从言行到制度、从制度到文化的转化,用集体记忆的强化机制不断重复商道,使得商道在实践中稳定延续和发展.     

Total completion time minimization in online hierarchical scheduling of unit-size jobs

This paper investigates an online hierarchical scheduling problem on m parallel identical machines. Our goal is to minimize the total completion time of all jobs. Each job has a unit processing time and a hierarchy. The job with a lower hierarchy can only be processed on the first machine and the job with a higher hierarchy can be processed on any one of m machines. We first show that the lower bound of this problem is at least \(1+\min \{\frac{1}{m}, \max \{\frac{2}{\lceil x\rceil +\frac{x}{\lceil x\rceil }+3}, \frac{2}{\lfloor x\rfloor +\frac{x}{\lfloor x\rfloor }+3}\}\), where \(x=\sqrt{2m+4}\). We then present a greedy algorithm with tight competitive ratio of \(1+\frac{2(m-1)}{m(\sqrt{4m-3}+1)}\). The competitive ratio is obtained in a way of analyzing the structure of the instance in the worst case, which is different from the most common method of competitive analysis. In particular, when \(m=2\), we propose an optimal online algorithm with competitive ratio of \(16\) \(/\) \(13\), which complements the previous result which provided an asymptotically optimal algorithm with competitive ratio of 1.1573 for the case where the number of jobs n is infinite, i.e., \(n\rightarrow \infty \).     

Hamiltonian numbers in oriented graphs

A hamiltonian walk of a digraph is a closed spanning directed walk with minimum length in the digraph. The length of a hamiltonian walk in a digraph D is called the hamiltonian number of D, denoted by h(D). In Chang and Tong (J Comb Optim 25:694–701, 2013), Chang and Tong proved that for a strongly connected digraph D of order n, \(n\le h(D)\le \lfloor \frac{(n+1)^2}{4} \rfloor \), and characterized the strongly connected digraphs of order n with hamiltonian number \(\lfloor \frac{(n+1)^2}{4} \rfloor \). In the paper, we characterized the strongly connected digraphs of order n with hamiltonian number \(\lfloor \frac{(n+1)^2}{4} \rfloor -1\) and show that for any triple of integers n, k and t with \(n\ge 5\), \(n\ge k\ge 3\) and \(t\ge 0\), there is a class of nonisomorphic digraphs with order n and hamiltonian number \(n(n-k+1)-t\).     

从基本范畴的深度分析看社会建构主义作为共建的辩证法

社会建构主义已经成为影响后现代世界中的哲学、社会、政治、教育、国际交往等领域的重要思想规范.但由于脉络交织思想庞杂,学界对社会建构主义歧见重重,因而有必要从基本范畴的层面重新审视."建构"、"哲学的社会维度"、"社会建构"等范畴的思想内涵揭示了社会建构主义的深层本质:一种共建的辩证法.