نتایج جستجو برای: 4571
تعداد نتایج: 186 فیلتر نتایج به سال:
CONTEXT Hepatitis B Virus expanded program on immunization (EPI) started on 1993 in Iran. Most surveys have assessed the level of response to vaccine by measuring the titers of anti-HBs. This meta- analysis aimed to summarize the Iranian published data on the rate of vaccine-responders versus non-responders. Moreover, the impact of variables such as age, gender, type of vaccine, etc. on the lev...
Background: Vitamin D is a key nutrient in bone health and the vitamin D status of individuals with regular exposure to solar or artifi cial ultraviolet B (UVB) radiation is generally superior to those with limited exposure. Objective: By means of a cross-sectional, observational design, explore the association of serum 25-hydroxy vitamin D (25(OH)D) concentrations and biochemical markers of bo...
BACKGROUND Pregnancy and the postnatal period is a period of potential vulnerability for women and families. It is UK policy that all women are asked about their mental health and wellbeing early in pregnancy and following the birth to help detect potential problems and prevent serious adverse outcome. However, identification of mental health problems in pregnancy may be less than 50 %. The aim...
OBJECTIVE Different sources are available for the surveillance of Road Traffic injuries (RTI), but studied individually they present several limits. In this paper we present the results of a surveillance integrating healthcare data with the data gathered by the municipal police in the southeastern area of Rome (630,000 inhabitants) during the year 2003. METHODS The Municipal police RTI report...
We present finite-blocklength upper and lower bounds on the maximum coding rate achievable over a multiple-antenna Rayleigh block-fading channel under the assumption that neither the transmitter nor the receiver have a priori knowledge of the channel realizations. Numerical evidence suggests that the bounds delimit tightly the maximum coding rate already for short blocklengths (packets of 168 c...
BACKGROUND The purpose of this study was to compare pre- and post-surgical healthcare costs in commercially insured total joint arthroplasty (TJA) patients with osteoarthritis (OA) in the United States (U.S.). METHODS Using a large healthcare claims database, we identified patients over age 39 with hip or knee OA who underwent unilateral primary TJA (hip or knee) between 1/1/2006 and 9/30/200...
BACKGROUND Nowadays, due to advanced techniques and well-trained interventionists in catheter labs, new scientific research has shown percutaneous coronary intervention (PCI) to be a safe treatment procedure in patients with chronic total occlusion (CTO). However, no study has systematically compared PCI outcomes in CTO patients with versus without type 2 diabetes mellitus (T2DM). Therefore, th...
We present nebular-phase observations and spectral models of Type Ic superluminous supernovae. LSQ14an and SN 2015bn both display late-time spectra similar to SN 2007bi, and the class shows strong similarity with broad-lined Type Ic SNe such as SN 1998bw. Near-infrared observations of SN 2015bn at +315d show a strong Ca II triplet, O I 9263, O I 1.13 μm and Mg I 1.50 μm, but no strong He, Si or...
context hepatitis b virus expanded program on immunization (epi) started on 1993 in iran. most surveys have assessed the level of response to vaccine by measuring the titers of anti-hbs. this meta- analysis aimed to summarize the iranian published data on the rate of vaccine-responders versus non-responders. moreover, the impact of variables such as age, gender, type of vaccine, etc. on the lev...
While there have been many studies of the impact of railroad deregulation on agricultural transportation markets there have been very few that address the impact of railroad mergers on rail grain prices and the distribution of eciency gains. The purpose of this paper is to add to the sparse literature regarding the eect of railroad mergers on agricultural transportation markets. Given the eve...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید