نتایج جستجو برای: i15
تعداد نتایج: 166 فیلتر نتایج به سال:
In this work the results on imaging and spectroscopic performances of 14×14×1 mm CdTe detectors with 55×55 μm and 110×110 μm pixel pitch bump-bonded to a Timepix chip are presented. The performance of the 110× 110 μm pixel detector was evaluated at the extreme conditions beam line I15 of the Diamond Light Source. The energy of X-rays was set between 25 and 77 keV. The beam was collimated throug...
We evaluate the impacts of maternal depression on children’s skill accumulation, exploiting randomized variation in depression created by a cluster-randomized control trial that provided cognitive behavioral therapy to women in rural Pakistan who were diagnosed as depressed in pregnancy. We conducted a follow-up study when the children were age 7 and assessed their cognitive, socio-emotional an...
با توجه به این که مهمترین اصل در روند تولید و فرآوری مواد غذایی، سلامت محصول است، یکی از کارآمدترین روشها برای تضمین سلامت و کنترل کیفیت غذا، بهکارگیری روش نوین تجزیه و تحلیل خطر نقاط کنترل بحرانی (haccp) در مراکز تهیه و توزیع مواد غذایی است. با توجه به این مهم، در این مطالعه منافع و چالشهای فراروی عملیاتی شدن سیستم haccp با استفاده از اطلاعات میدانی50 پرسشنامه از واحدهای تولیدی در مشهد به ...
Equilibrium Health Spending and Population Aging in a Model of Endogenous Growth: Will the GDP Share of Health Spending Keep Rising? The apparently unrelenting growth in the GDP-share of health spending (SHS) has been a perennial issue of policy concern. Does an equilibrium limit exist? The issue has been left open in recent dynamic models which take income growth and population aging as given....
We analyze the economic consequences for less developed countries of investing in female health. In so doing we introduce a novel micro-founded dynamic general equilibrium framework in which parents trade off the number of children against investments in their education and in which we allow for health-related gender differences in productivity. We show that better female health speeds up the d...
The Declines in Infant Mortality and Fertility: Evidence from British Cities in Demographic Transition At the beginning of the twentieth century Britain was roughly halfway through a 60-year demographic transition with declining infant mortality and birth rates. Cities exhibited great and strongly correlated diversity in these rates. We demonstrate cross-section correlations with, for instance,...
Four moderately halophilic, exopolysaccharide-producing bacterial strains isolated from soil samples collected from a saltern at Asilah (Morocco) are reported. These four strains were initially considered to belong to the genus Halomonas. Their DNA G+C contents varied between 62.2 and 64.1 mol %. DNA-DNA hybridization revealed a considerable degree of DNA-DNA similarity amongst all four strains...
Tetherin (BST-2/CD317) is an interferon-inducible antiviral protein that restricts the release of enveloped viruses from infected cells. The HIV-1 accessory protein Vpu can efficiently antagonize this restriction. In this study, we analyzed mutations of the transmembrane (TM) domain of Vpu, including deletions and substitutions, to delineate amino acids important for HIV-1 viral particle releas...
The Impact of Adult Child Emigration on the Mental Health of Older Parents A growing literature within economics has sought to examine the impacts of emigration on sending countries. Some of the studies have looked within families and have investigated how emigration affects those family members who are left behind. In this paper, we explore whether older parents of adult children who emigrate ...
Yb(3+)-sensitized, Ln(3+)(Er(3+), Pr(3+))-doped Y6O5F8 micron-sized bundles of highly crystalline individual nanotubes have been prepared through hydrothermal syntheses at 185 °C. The inhomogeneous broadening observed in their optical spectra is associated with the large distribution of crystal fields around Y(3+)(Ln(3+)) sites in the orthorhombic Pbcm Vernier-type Y6O5F8 host. Based on ratiome...
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