2,628 research outputs found
Special and inclusive education in Israel
The present paper aims to describe the Israeli special education system
historically and currently, as related in particular to the 1988 National Special
Education Law, and to appraise future systemic trends. Discussion focuses on
three major aspects: (a) changes in specia! education concepts and ideological
perceptions, (b) systemic structural changes locally and nationally; and (c)
curricular and intervention perspectives. The conceptual/ideological review
includes changes in theoretical approaches to definitions and classifications,
which influenced implementation issues such as diagnostic and intervention
planning. The discussion of systemic structural changes focuses on the expanding
process of inclusion for children with special needs into the regular education
system and on the growing process of decentralisation in resource distribution
toward local and regional support centres. Diverse solutions are examined to
resolve the enduring major conflict between the need to provide the optimal help
and support to meet the special needs of each individual child and at the same time
to strive for the highest level of inclusion. Developments in curricula and
intervention are described, consisting of revised goals. modified definitions, and
new approaches to remedial education and intervention. including the integration
of new technologies. In appraising future trends, the importance is highlighted of
appropriate modifications in teacher training. student skill development. and
setting design, as well as the evaluating and supervising resource distribution and
treatment efficacy.peer-reviewe
Influence of the initial imperfections with regard to the webs thicknesses of cold-formed compressed steel members
Local stability requirements related to unfavorable buckling effects of compressed parts of
cold-formed profiles are highly significant. Favorable effects related to their post-critical behavior are
also important. The paper deals with resistance of these type of members, taking into account the
influence of initial imperfections with regard to the thicknesses of their webs. The paper also presents
information about experimental and theoretical-numerical research to determine the resistance of
cold-formed compressed steel members with closed cross-sections. Obtained results are very
extensive; therefore the paper presents results of part of tested and analyzed member
Novel, male-produced aggregation pheromone of the cerambycid beetle Rosalia alpina, a priority species of European conservation concern.
Several recent studies have demonstrated the great potential for exploiting semiochemicals in ecology and conservation studies. The cerambycid beetle Rosalia alpina represents one of the flagship species of saproxylic insect biodiversity in Europe. In recent years its populations appear to have declined substantially, and its range has shrunk considerably as a result of forest management and urbanization. Here, we collected volatile chemicals released by males and females of R. alpina. Analyses of the resulting extracts revealed the presence of a single male-specific compound, identified as a novel alkylated pyrone structure. In field bioassays in Slovenia, traps baited with the synthesized pyrone captured both sexes of R. alpina, indicating that the pyrone functions as an aggregation pheromone. Our results represent the first example of a new structural class of pheromones within the Cerambycidae, and demonstrate that pheromone-baited traps can provide a useful tool for sampling R. alpina. This tool could be particularly useful in the ongoing development of conservation strategies for the iconic but endangered Alpine longicorn
Evaluation of the activities of the office of the plenipotentiary of the government for Roma communities
CASE Network Reports No. 61: Networks and competitiveness in Polish foreign-owned and domestic firms
Climate change legislation in South Korea
노트 : An Excerpt from The 2015 Global Climate Legislation StudyA Review of Climate Change Legislation in 99 Countrie
Calreticulin regulates Src kinase in osteogenic differentiation from embryonic stem cells
Calreticulin, the major Ca2+ buffer of the endoplasmic reticulum plays an important role in the choice of fate by embryonic stem cells. Using the embryoid body method of organogenesis, we showed impaired osteogenesis in crt−/− cells vis-à-vis calreticulin-containing osteogenic WT cells. In the non-osteogenic crt−/− cells, c-Src- a non-receptor tyrosine kinase- was activated and its inhibition rescued osteogenesis. Most importantly, we demonstrated that calreticulin-containing cells had lower c-Src kinase activity, and this was accomplished via the Ca2+-homeostatic function of calreticulin. Specifically, lowering cytosolic [Ca2+] in calreticulin-containing osteogenic WT cells with BAPTA-AM, activated c-Src and impaired osteogenic differentiation. Conversely, increasing cytosolic [Ca2+] in crt−/− cells with ionomycin deactivated c-Src kinase and restored osteogenesis. The immediate effector of calreticulin, the Ser/Thr phosphatase calcineurin, was less active in crt−/− cells, however, its activity was rescued upon inhibition of c-Src activity by small molecule inhibitors. Finally, we showed that higher activity of calcineurin correlated with increased level of nuclear Runx2, a transcription factor that is the master regulator of osteogenesis. Collectively, our work has identified a novel pathway involving calreticulin regulated Ca2+ signalling via c-Src in osteogenic differentiation of embryonic stem cells
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