منابع مشابه
Relaxing the Glass-steagall Act: Do Diversification Benefits Exist?
The relaxation of the Glass-Steagall Act (GSA), the Act which separates commercial and investment banking, is currently under debate. Central to this debate is the potential risk reduction of commercial banks due to diversification. This paper, through a thorough and complete examination of the diversification potential, establishes an upper bound of diversification benefits. The results do sup...
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To coincide with the introduction in the United States of the Sunshine Act, Genevieve Pham-Kanter discusses what we need to look for to fight hidden bias and deliberate or unconscious corruption. Please see later in the article for the Editors' Summary.
متن کاملبررسی فرمولاسیون الیاف e-glass و ecr-glass جهت استفاده در لوله های فاضلاب
الیاف شیشه، الیاف ظریف خمش پذیری از خانواده شیشه با اجزاء اصلی sio2-al2o3-cao-mgo و ناخالصی های قلیایی، اکسید های معدنی tio2,fe2o3 و افزودنی b2o3 و فلئور می باشد و در حالت مذاب بصورت رشته های نخی شکل، رشته رشته می شود.الیاف شیشه به دو گروه اصلی پشم شیشه و الیاف پیوسته تقسیم بندی می شود و الیاف شیشه نیز بر حسب شرایط مصرف به چندین نوع e-glass , a-glass, c-glass , r-glass , s-glass , ecr-glas...
Glass scales on the wing of the swordtail butterfly Graphium sarpedon act as thin film polarizing reflectors.
The wings of the swordtail butterfly Graphium sarpedon (the Common Bluebottle) have blue/green-colored patches that are covered on the underside by two types of scales: white and glass scales. Transmission and scanning electron microscopy revealed that the white scales are classically structured: the upper lamina, with prominent ridges and large open windows, is well separated by trabeculae fro...
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Three years ago, Nobel laureate Paul Crutzen rocked the boat of the climate discussion by suggesting it might become necessary to inject one million tons of sulphur into the stratosphere every year and let it burn there to form sulphate aerosols. Inspired by the cooling effect of the Pinatubo eruption in 1991, he proposed that such drastic measures might be the only way to avert catastrophic cl...
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ژورنال
عنوان ژورنال: Nature
سال: 2019
ISSN: 0028-0836,1476-4687
DOI: 10.1038/d41586-019-03367-w