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101.
Promoting interventive action on the part of student bystanders witnessing peer victimisation is currently seen as a promising way of reducing bullying in schools. A video depicting bullying in the presence of bystanders was viewed by late primary (n = 200) and early secondary school students (n = 200). Some 43% of the students indicated that they were likely to help the victim. Questionnaires were employed to assess student attitudes towards victims, beliefs about the expectations of parents, friends, and teachers, perceived self‐efficacy, and social desirability response set. Multiple regression analysis identified as significant predictors of expressed intention to intervene: attending primary school, having rarely or never bullied others, having (reportedly) previously intervened, positive attitude to victims, and believing that parents and friends (but not teachers) expected them to act to support victims. Implications for action to reduce bullying in schools are discussed. 相似文献
102.
Mr Ken Appleton 《Research in Science Education》1992,22(1):11-19
There has been renewed debate in recent years about the relatively poor science discipline background knowledge of primary
and preschool teachers, and their lack of confidence to teach science stemming from this. A reaction from teacher educators,
such as recommended by theDiscipline Review of Teacher Education in Mathematics and Science Report, has been to provide more explicit science discipline units in pre-service teacher education courses. However, a few
studies have cast some doubt on the notion that more science discipline studies (Skamp, 1989; Stepans & McCormack, 1985).
This paper reports on pre-service students' perceptions of their cofidence to teach science before and after a science education
unit adapted from the PECSTEP work (Kirkwood, Bearlin & Hardy, 1989), which included only a small amount of physical science,
and took an explicit gender approach emphasising the students as learners.
Specializations: primary teacher education, teaching strategies in science. 相似文献
103.
OBJECTIVE: To establish the prevalence, typology and nature of attempted or completed incidents of stranger-perpetrated sexual abuse or abduction of children "away from home". METHODS: A questionnaire was completed by 2,420 children (83% response rate) aged 9-16 years in 26 elementary and high schools in North-West England. RESULTS: Of these children, 19.0% (n=461) reported that they had been the victims of any attempted or completed sexual abuse or abduction incident away from home at some point in their lives. Of these children, 161 (6.7% of the original sample) reported that the "last" incident had been perpetrated by a stranger. Based upon these last incidents, four main types of attempted or completed CSA or abduction incident were identified: indecent exposure (40.8% of victims), touching (25.8%), and abduction (23.1%), each occurring on their own; and incidents involving multiple types of act (10.2%). The majority of these abductions (91.1%) and touching incidents (50.9%) were attempted as opposed to completed. Rates of victimization were generally higher among girls than boys (10.4% vs. 4.2%, p<.001). A sizeable minority of victims had experienced sexual abuse or abduction previously (28.8%). The large majority of incidents were carried out by males (88.2%). Most incidents occurred when children were accompanied by their peers (67.9%). Many victims were frightened by their experience (46.9% very frightened) and the large majority made a disclosure (79.9%). Only a minority of incidents were reported to the police (33.3%). CONCLUSIONS: Incidents of attempted and completed stranger CSA and abduction are distinct from CSA and abduction by known persons, go against stereotypes, are complex, and give rise to a number of key issues that may have implications for prevention and intervention. PRACTICE IMPLICATIONS: Professionals involved in child protection should undertake work to reduce the risk of existing victims of CSA or abduction becoming victims of stranger CSA or abduction, and the risk of attempted incidents becoming completed ones. They also need to encourage the disclosure and reporting of attempted and completed stranger CSA and abduction incidents. 相似文献
104.
This study describes an elementary science model of professional development through mentoring by university science education
professors working with teachers at a private elementary school in a regional city in Queensland, Australia. A cross-cultural
collaboration involving professors from the United States and Australia resulted in the socially constructed image of the
science education mentor. While there is no generic model for elementary science mentoring, results of data collection reveal
that (a) one-to-one mentoring has short-term implications for implementing constructivist science teaching practices; (b)
successful mentoring models include facilitating the understanding of science content, exploring elementary science pedagogical
content knowledge through modeling, and off-site professional development workshops; and (c) understanding and working from
the predispositions of the teachers is an essential component of effective professional development. 相似文献
105.
106.
Ken R. Lodewyk 《教育心理学》2007,27(3):307-327
Students with differing profiles of epistemological beliefs—their beliefs about personal epistemology, intelligence, and learning—vary in thinking, reasoning, motivation, and use of strategies while working on academic tasks, each of which affect learning. This study examined students’ epistemological beliefs according to gender, school orientation, overall academic achievement, and performance on two differently structured academic tasks. Epistemological beliefs in fixed and quick ability to learn, simple knowledge, and certain knowledge differed significantly as a function of gender, school orientation, and levels of academic achievement. These beliefs, particularly the belief in simple knowledge, significantly predicted overall performance and reflective judgment scores on the ill‐structured task but not on the well‐structured task. Implications concerning the relations among epistemological beliefs, reflective judgment, gender, school orientation, task structure, and achievement are discussed. 相似文献
107.
108.
109.
Roger A. Grey Author Vitae 《Journal of The Franklin Institute》2004,341(3):197-205
Throughout his distinguished career of over 40 years, Robin Hochstrasser has made significant contributions to several areas of science in the fields of chemical and biochemical physics. He has been at the forefront and made fundamental contributions to the fields of photochemistry, solid-state chemistry, ultra-fast laser spectroscopies, and protein dynamics. He has been a prolific researcher, producing over 560 publications. His work has been characterized by experts in the fields as “a constant stream of experiments of lasting significance” (J. Phys. Chem. 100 (1996) 11791).Robin began his career in the 1960s using a variety of magnetic and electric field measurements to study crystals at low temperatures to understand spin quantization in solids and electron exchanged-mediated energy transfer. This work, described as a “classic contribution” (J. Phys. Chem. 100 (1996) 11791) was the basis for much of the subsequent experimental and theoretical work on the effect of magnetic fields on molecular spectra and on the measurements of dipole moments.In the late 1970s, Robin recognized the power of laser technology for the study of molecules and soon became a leader in the field investigating solid, gas phase, and condensed phase systems. He developed and applied various ultra-fast laser techniques to study the structure and dynamics of complex molecules in liquid phase, chemical, and biochemical reactions. He made seminal contributions to the development of two-dimensional infrared spectroscopy (2D IR) on a time scale of a picosecond or less. This 2D IR spectroscopy measures coupling between two functional groups in a large molecule and can thus be used to measure distances, as for example, two amide carbonyl groups in a peptide molecule. On the ultra-fast timescale, one application of 2D IR is to gain information on the rate of protein folding and unfolding in solution. Some of Robin's greatest contributions to understanding biomolecules are said to be in the experimental studies on the picosecond and femtosecond dynamics of heme proteins. Using techniques he developed he was able to observe the interactions of oxygen, carbon monoxide, and nitric oxide with hemoglobin inside the protein. 相似文献
110.
Pigeons were reinforced for pecking a key following one signal duration (S+) but not following another signal duration (S?). The S+ and S? were 2.52 and 5.67 sec, respectively, counterbalanced across birds. Subsequent generalization tests with a range of signal durations revealed a step function, with high response rates for all durations on the S+ side of the distribution, low response rates for all durations on the S? side, and an intermediate rate for the intermediate duration. A comparison group of pigeons trained with only the S+ duration showed a flat generalization function. For the discrimination-trained birds, the delay between signal termination and opportunity to respond was subsequently varied during generalization testing. A step function again appeared, and no evidence of subjective shortening over the delay was found. The overall pattern of results suggests that the birds categorized the temporal signal into two classes and retained a categorical code over the delay. 相似文献