A “brer rabbit” case for reverse mandated benefits

Reverse mandated benefits is a government-mandated policy that requires employees to provide their employers with benefits that workers would not provide otherwise. Of course, only those benefits would be mandated that are worth more to employers than they cost, as determined by political authorities. My case for such a policy argues that it is at least as sensible as policies mandating that employers provide benefits to their employees that would not be provided otherwise.     

Intertemporal choice under timing risk: An experimental approach

This paper investigates how individuals evaluate delayed outcomes with risky realization times. Under the discounted expected utility (DEU) model, such evaluations depend only on intertemporal preferences. We obtain several testable hypotheses using the DEU model as a benchmark and test these hypotheses in three experiments. In general, our results show that the DEU model is a poor predictor of intertemporal choice behavior under timing risk. We found that individuals are averse to timing risk and that they evaluate timing lotteries in a rank-dependent fashion. The main driver of timing risk aversion is nothing but probabilistic risk aversion that stems from the nonlinear treatment of probabilities.     

多粒多小穗小麦品种绵农2号的选育

从生态、生产和遗传育种等方面分析了四川小麦多小穗育种的理论依据，并就多小穗品种绵农2号的选育方法进行了讨论。这些方法有：（1）多组合小群体确定目标组合；（2）在目标组合中确定重点目标组合；（3）在重点目标组合中确定重点株系；（4）进行阶梯式杂交。     

自动“机械手”在核酸提取设备中的应用

针对当前分子生物学的发展,开发了自动控制与手动控制相结合的核酸提取系统。系统主要以89C58单片机为核心,采用A/D转换、液晶显示、位置开关输入、控制键盘输入、继电器输出控制、光电隔离等硬件电路模块组成。通过实际使用表明该系统运动控制稳定,提取效果优,工作效率高,可靠性好,自动化程度高。     

四级阅读测试题型与对策

分析了最近 1 3年 2 2套四级考试阅读理解部分全部问题 ,并以文字、图表数据说明五类题型的比例及测试特点。同时结合《大学英语教学大纲》,分析了师生在平常教与学的过程中可采取的对策。     

Beheimatungsprozesse begleiten — ein Werkstattbericht

Supporting processes of belonging in supervision and coachingThe contemporary employee has to cope with frequent changes. Not only does he lose his familiar environment, he also has to find ways to familiarize himself with new places and to develop a fresh sense of belonging. This process can be understood and facilitated by interpreting the German concept of “Heimat“ as something we have to create ourselves. First experiences demonstrate the usefulness of this approach in coaching processes.     

Expected sample moments of concomitants of selected order statistics

In this paper, the task of determining expected values of sample moments, where the sample members have been selected based on noisy information, is considered. This task is a recurring problem in the theory of evolution strategies. Exact expressions for expected values of sums of products of concomitants of selected order statistics are derived. Then, using Edgeworth and Cornish-Fisher approximations, explicit results that depend on coefficients that can be determined numerically are obtained. While the results are exact only for normal populations, it is shown experimentally that including skewness and kurtosis in the calculations can yield greatly improved results for other distributions.     

The new treatment mode research of hepatitis B based on ant colony algorithm

Hepatitis B (HB) is a deadly disease that has a severe impact on infected individuals. In China, not only are the incidence and infection rates of HB very high, but also many HB patients suffer from mental illness associated with anxiety and fear because of HB-associated symptoms. This exacerbates the patients’ condition, potentially increasing the risk of mortality. In this paper, we propose a new treatment mode to improve the therapeutic efficiency and patients’ satisfaction with their healthcare. In a single process of this new treatment, several patients with similar disease symptoms are treated by one doctor at the same time. This new treatment mode can not only relieve the anxiety and fear of HB patients, and improve patients’ cognition rate of HB, but also reduce the HB infection rate, slow down the progression of disease symptoms, and shorten the course. If patients with similar disease symptoms are to be grouped together, there is a need to determine the optimal patient batch combination, which can be solved in the new mode, called patient combined problem (PCP). We also constructed a mathematical model of PCP, and present the ant colony (AC) algorithm and Enhanced AC with a P-3-exchange operator for PCP in the new treatment mode in this paper. We also performed an experiment that showed that our proposed algorithms are very fast and effective for solving this problem.

     

儿童青少年中华民族共同体意识的培育——基于家校共育的视角

铸牢儿童青少年的中华民族共同体意识,是培养爱党爱国的社会主义事业建设者和接班人的一项根基性工程。儿童青少年的民族认同是基于生理基础并超越基因遗传,在家庭养育关系和社会、政治、文化环境共同作用下而建构起来的复合观念。基于对个体民族认同发展的过程、内容及与社会环境互动特征的分析,文章提出家庭是人价值观的生发之源,家庭教育是促进儿童青少年建构民族国家认同的关键力量来源。家校共育要拓宽培育的目标对象和时空范围,加强家庭文化与学校文化之间的连续性和共同性,建构协同共育的生态安全网,创造儿童青少年中华民族共同体意识培育的最佳效果。