نتایج جستجو برای: 1820
تعداد نتایج: 2174 فیلتر نتایج به سال:
Baten, Joerg, and Juif, Dácil—A story of large landowners and math skills: Inequality and human capital formation in long-run development, 1820–2000 We create a new dataset to test the influence of land inequality on long-run human capital formation in a global cross-country study and assess the importance of land inequality relative to income inequality. Our results show that early land inequa...
I review our theoretical understanding of thermonuclear flashes on accreting neutron stars, concentrating on comparisons to observations. Sequences of regular Type I X-ray bursts from GS 1826-24 and 4U 1820-30 are very well described by the theory. I discuss recent work which attempts to use the observed burst properties in these sources to constrain the composition of the accreted material. Fo...
Background Pediatric obstructive sleep apnea (OSA) is a highly prevalent but often neglected disorder. There is paucity of reports on the prevalence of pediatric OSA from India. This study was done to estimate the prevalence of OSA in school children aged 5-10 years and its association with academic performance. Methodology This school-based cross-sectional epidemiological study was conducted...
Recensión de / Review of: Pedro Rújula y Manuel Chust, El Trienio liberal en la monarquía hispánica. Revolución e independencia (1820-1823), Los Libros Catarata, Madrid, 2020, 190 páginas. Enviado el (Submission Date): 29/04/2021 Aceptado (Acceptance 5/05/2021
خلیج فارس در طول تاریخ پرفرازونشیب خود همواره بهعنوان یکی از مناطق مهم و استراتژیک موردتوجه کشورهای منطقهای و فرا منطقهای قرار داشته است. این کشورها همواره سعی داشتهاند جایگاه سیاسی و اقتصادی خویش را در این منطقه ارتقاء بخشند. در سالهای 1820 تا 1907 م، خلیج فارس صحنه رقابت بینالمللی گردید. رقابت انگلستان و روسیه بهعنوان دو قدرت جهانی در سدۀ نوزدهم و اوایل سدۀ بیستم در خلیج فارس بخش ...
In this study, we demonstrate a new anisotropic solution to the Einstein field equations in Finch-Skea spacetime. The physical features of stellar configuration are studied previous investigations. We create model that meets all plausibility conditions for variety stars and plot graphs \textbf{4U 1820-30}.
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