منابع مشابه
a paradigm shift away from method-wise teaching to strategy-wise teaching: an investigation of reconstructive strategy versus communicative strategy
چکیده: هدف اصلی این مطالعه ی توصیفی تحقیقی در حقیقت تلاشی پساروش-گرا به منظور رسیدن به نتیجه ای منطقی در انتخاب مناسبترین راهکار آموزشی بر گرفته از چارچوب راهبردی مطرح شده توسط والدمر مارتن بوده که به بهترین شکل سازگار و مناسب با سامانه ی آموزشی ایران باشد. از این رو، دو راهکار آموزشی، راهکار ارتباطی و راهکار بازساختی، برای تحقیق و بررسی انتخاب شدند. صریحاً اینکه، در راستای هدف اصلی این پژوهش، ر...
15 صفحه اولDoes water dope carbon nanotubes?
We calculate the long-range perturbation to the electronic charge density of carbon nanotubes (CNTs) as a result of the physisorption of a water molecule. We find that the dominant effect is a charge redistribution in the CNT due to polarisation caused by the dipole moment of the water molecule. The charge redistribution is found to occur over a length-scale greater than 30 Å, highlighting the ...
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The Institute of Chemistry, The Center for Nanoscience and Nanotechnology, and The Racah Institute of Physics, , Hebrew University, Jerusalem 91904, Israel School of Chemistry, Sackler Faculty of Exact Sciences, Tel Aviv University, Tel Aviv 69978, Israel The Department of Physics, Yeshiva University, New York, New York 10016, United States To Whom Correspondence should be addressed. E-mail: u...
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Recently, many scientific journals have published articles regarding the role of intravitreal injection of anti-vascular endothelial growth factor (VEGF) in retinopathy of prematurity (ROP). The BEAT-ROP cooperative group have now reported their results. By far, their study seems to be the largest and best executed. In addition, the results are no less than spectacular, and if they can be repea...
متن کاملHow does ROP develop?
In babies who are born preterm (before 37 weeks), the retinal blood vessels are not fully formed and do not reach the ora serrata (Figure 2). If a preterm baby is examined a week or so after birth, it is possible to see whether the blood vessels are mature and have reached the ora serrata, or whether they are immature; i.e., the peripheral retina is not vascularised. If babies receive good neon...
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ژورنال
عنوان ژورنال: Nature Reviews Microbiology
سال: 2009
ISSN: 1740-1526,1740-1534
DOI: 10.1038/nrmicro2100