نتایج جستجو برای: b41 c63
تعداد نتایج: 418 فیلتر نتایج به سال:
Only 5.5 percent of black males married white females in 1990, and the family-income premium for intermarried black males was 7 percent. This paper estimates the impact of the mating taboo, courting opportunities, and individual endowments on the black male marriage market. Results indicate that eliminating the mating taboo would raise the intermarriage rate from 5.5 to 64 percent, and do away ...
Exact string solutions are presented, where moduli fields are varying with time. They provide examples where a dynamical change of the topology of space is occurring. Some other solutions give cosmological examples where some dimensions are compactified dynamically or simulate pre-big bang type scenarios. Some lessons are drawn concerning the region of validity of effective theories and how the...
The models Feldstein and Rothschild, on the hand, and Jorgenson on the other adopted in 1974 to highlight the replacement ratio are identical. Yet, the authors reached opposite conclusions and that view prevailed, which is weaker in terms of theoretical and empirical foundations. This paper argues that both puzzles may be resolved by reference to the differences in the methodological preconcept...
پژوهش حاضر به تعیین قیمت برق بعد از خروج بازار از تعادل پرداخته است. به این منظور، پس از طراحی بازار برق در قالب مدل پویاییسیستمی، با استفاده از مدل بهینهیابی، مقادیر بهینه ی عرضه، تقاضا و قیمت تعیین شده است. این مدل در دو بازه زمانی یک روزه در ماه مرداد و یک ماهه (مردادماه) در سال 1386 با استفاده از نرمافزاز شبیهسازی Vensim اجرا شده است. برای انجام تحقیق فرض افزایش پنج درصدی تقاضا در ابت...
us: This inquiry seeks to establish the importance of the critiques leveled by Thorstein Veblen and Tony Lawson against the orthodox economics. In order to advance this point this inquiry advances the notion that Neoclassical school and its sub school known as marginal utility theory are constructed upon shaky philosophical and methodological foundations that include the hedonistic conception o...
This study investigated the association between HLA antigens and inflammatory bowel disease in 65 Iraqi patients (50 ulcerative colitis, 15 Crohn disease) compared with 67 matched controls. At HLA class I region, the patients showed significantly increased frequencies of A9 and B41 and a decrease of A11. Similar results were found when the clinical types were considered separately, except for A...
A challenge for HIV-1 immunogen design is the difficulty of inducing neutralizing antibodies (NAbs) against neutralization-resistant (tier 2) viruses that dominate human transmissions. We show that a soluble recombinant HIV-1 envelope glycoprotein trimer that adopts a native conformation, BG505 SOSIP.664, induced NAbs potently against the sequence-matched tier 2 virus in rabbits and similar but...
Perspectives from the Happiness Literature and the Role of New Instruments for Policy Analysis After having been ignored for a long time by economists, happiness is becoming an object of serious research in 21 century economics. In Section 2 we sketch the present status of happiness economics. In Section 3 we consider the practical applicability of happiness economics, retaining the assumption ...
A clone encoding the F41 f imbnal sub-unit gene from E coli B41, was isolated from an B1BL3 library using an oligonucleotide based on the published N-termlnal amino acid sequence (1). The DNA sequence of an t I66bp fragment revealed an open reading frame encoding a protein of 277 amino acids including a 22 amino acid leader sequence (dash underlined). This corresponds to a mature protein of 290...
This survey discusses behavioral and experimental macroeconomics, emphasizing a complex systems perspective. The economy consists of boundedly rational heterogeneous agents who do not fully understand their environment use simple decision heuristics. Central to our is the question under which conditions macro-system interacting may or coordinate on equilibrium outcome. A general finding that po...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید