武当山近50年考古新发现(续)

近50年的考古调查发掘表明,武当山不仅是我国著名的风景和道教圣地,而且也是我国罕见的一个历史悠久、蕴藏丰富的"文博之乡".从史前的动植物化石、新石器时代的遗址,到有史以来的历代古迹、墓葬和遗存,几乎可以勾画出自生命的起源、人类的诞生以及进入文明时代的一个清晰线索和图景.     

Effects of perceptual salience on the matrix task performance of four- and six-year-old children.

The effects of salience on 4- and 6-year-old children's ability to classify multiplicatively was investigated. A rank-ordered salience hierachy consisting of 3 dimensions was first assessed for each S. Several weeks later half the Ss of each age group were presented with a series of 9 3 times 3 matrix problems consisting of values from 2 dimensions ranked high in salience. The remaining half received identically structured matrices consisting of values from 1 highly salient dimension and of others from a dimension ranked low in salience. The goal in each problem was to select that compound stimulus from a set of alternatives that appropriately filled an empty cell in the matrix. Prior to the matrix problems, half the Ss in each matrix condition received sensitization training designed to increase the salience of the relevant dimensions in the matrix problems. The results showed that the pre-assessed salience of the relevant dimensions affected matrix solution in that more accurate performance was associated with those problems with both relevant dimensions relatively high in salience than those with one high and one low. Although the older Ss solved more problems, the evidence for coordination in the younger Ss was clear. No effects of sensitization training were found.     

职业教育校本课程开发对教师专业化发展的意义与要求

校本课程开发本身赋予教师一定的职能,并对教师的专业化发展提出了素质要求。教师要真正成为职业教育校本课程开发的主体,就应该注重自身的专业化发展,利用自身深厚的专业知识与技能和高尚的职业道德品质与人文素质,积极推进课程的校本化。     

Sexual harassment in Jewish and Arab public schools in Israel

OBJECTIVE: Current empirical literature on sexual harassment in schools is mostly based on nonrepresentative samples of middle-class high-school Caucasian female students. Thus the scope of research regarding gender, age, and cultural differences is very limited. This article reports on findings on sexual harassment in Jewish and Arab schools in Israel with regard to gender, age, and cultural differences. METHOD: The study is part of the first national survey on school violence in Israel. The representative sample includes 10,400 students in grades 7 through 11 attending public schools in Israel. Students were asked to report whether they were victims of specific acts of sexual harassment in school during the month before the survey. RESULTS: Overall, 29.1% of the students were victims of at least one act of harassment. The more common acts were to show offensive pictures or to send obscene letters, to take off or to try to take off part of the student's clothing, and to try to kiss a student. The most vulnerable groups are the Arab boys and 8th grade students. Report rates were the lowest among Arab girls. CONCLUSIONS: Sexual harassment is prevalent in Israeli schools. The pattern of victimization is different for boys and girls and for students in Jewish and Arab schools. These patterns are a complex phenomenon that must be considered in the intervention and policy measures addressing sexual harassment at school.     

Human kinematics and event control: on-line movement registration as a means for experimental manipulation

In human movement and sports science, manipulations of perception and action are common and often comprise the control of events, such as opening or closing liquid crystal goggles. Most of these events are externally controlled, independent of the actions of the participants. Less common, although sometimes desirable, are event manipulations that are dependent on the unconstrained movements of participants. As an example, we describe a method we used previously to manipulate vision of basketball jump shooters on the basis of on-line registration of their own movements. The shooters wore liquid crystal goggles that opened or shut as a function of specific kinematic features of these movements. The novel aspect of this method is that the criteria for detecting movement patterns and performing the appropriate manipulations are adjustable to the specific sport context and the complexity and variations of the unconstrained movements. The method was implemented as a finite state machine: a computer system that can be used for pattern recognition. We discuss this method, how it works and the potential it has for studying perceptual-motor skills in sport. Furthermore, the results of the basketball experiment are briefly summarized and complemented with new analyses.     

Children's Moral Reasoning about Family and Peer Violence: The Role of Provocation and Retribution

Several theories assume that the approval of violence is related to deficits in moral reasoning. However, this assumption has rarely been empirically tested. This inquiry examined violent and nonviolent children's moral reasoning about violence in family and peer situations. 108 subjects (54 violent and 54 nonviolent, aged 8–1, 10–2, 12–2) selected from 2 inner city schools were asked to evaluate unprovoked and provoked violent situations. All the children condemned unprovoked violence using moral reasoning. With provoked situations, the violent group focused more on the immorality of the provocation and perceived "hitting back" as a form of reciprocal justice. The nonviolent group perceived "hitting" worse than the psychological harm of the provocation and condemned the violence. The results suggest that both the approval and disapproval of violence were justified by moral reasoning. It was proposed that the violent children's greater focus on psychological provocations may be due to experiences and self-perceptions of victimization.     

Teacher and principal perceptions of student victimization and the schools’ response to violence: The contributions of context on staff congruence

Consistency in staff awareness and response is a key programmatic centerpiece in most school violence prevention and intervention programs. Staff consensus on the definition of violence, the behaviors that constitute violence, the extent of the problem, and how to deal with violent situations are often the cornerstone of evidence-based programs. Nevertheless, little is known theoretically or empirically about the staff and school variables that shape principal and teacher consensus in recognition of the problem or the response to violence. To explore these issues, this study drew on a nested national sample of Israeli schools (1352 teachers; 186 principals and schools) to explore staff and school correlates of the extent of congruence in staff reports of awareness of and response to school violence and victimization. We drew on Rasch analytic techniques to measure the extent of staff congruence about frequency of student victimization, risky behaviors and school response. Overall, student-reported risky behavior accounted for congruence in staff reports of student victimization and risky behavior and was consistent across Jewish and Arab school systems. Staff reports of student victimization and risk shaped the school's response violent events, but important differences were observed across Jewish and Arab school systems. For example, the findings suggest that above and beyond all the school contextual factors, staff in religious Jewish and Arab schools reported less student victimization and less school response to violent situations. Implications for practice, theory, and future research in the school violence literature are discussed.     

探讨临时支撑卸载分析中的两种方法

目前在工程中，临时支撑卸载过程的分析和模拟主要有两种方法．利用这两种方法分别建立临时支撑卸载的有限元模型并在ANSYS中对这两个模型的卸载过程进行模拟和分析，从理论上和有限元分析结果上对这两种方法进行了探讨．     

Maltreatment of primary school students by educational staff in Israel

OBJECTIVES: This paper reports on the prevalence of emotional and physical maltreatment of students in primary schools by school staff in Israel. Victimization by staff was analyzed according to students' gender, age group (4th, 5th, and 6th grade), cultural group (Jewish-non-religious, Jewish-religious, and Arab schools), school characteristics (school size and class size), and by socio-economic status of the students' families. METHOD: Data were obtained from a nationally representative sample of 5472 students in Grades 4-6 in 71 schools across Israel. The students completed questionnaires during class, which included a scale for reporting physical and psychological maltreatment by staff. Data on the socio-economic status of the families of the students in each school were also obtained. RESULTS: Students reported generally high rates of maltreatment by staff members. Almost a third reported being emotionally maltreated by a staff member, and more than a fifth (22.2%) reported being a victim of at least one type of physical maltreatment. The most vulnerable groups for maltreatment were males, students in Arab schools, and students in schools with a high percentage of students from low-income and low-education families.CONCLUSIONS: These high rates of primary school students' victimization by staff are unacceptable. We recommend educational campaigns among teachers, as well as allocating more resources to support staff in low socio-economic neighborhoods.     

技术创新网络中核心企业形成的三状态模型研究——基于企业间关系耦合的分析

技术创新网络的扩张与核心企业的成长相互促进,相互决定,形成了复杂的共生演化关系。以知识为基础的企业,必须在各个层次上构建网络,维护多层交互作用,加强与其他企业的合作。从企业间关系耦合的视角,分析了技术创新网络中核心企业的形成过程,提出技术创新网络中各结点企业间的技术合作是一种相互间的知识协同。研究发现,企业间技术交流的过程就是企业间知识匹配——知识流动——知识控制的过程,而技术创新网络中的企业结点也是通过这三种状态,使自身能力得到提升,进而影响到与其他结点的知识协同,并最终成长为核心企业。