نتایج جستجو برای: j11

تعداد نتایج: 157  

سعید گرشاسبی فخر میثم موسایی نادر مهرگان

این مقاله با استفاده از تحلیل سری زمانی طلاق به بررسی ارتباط بین طلاق و سواد، شهرنشینی،  هزینه خانوار ، درآمد و نحوه توزیع آن طی سال های 1385-1353  در سطح کلان در ایران می پردازد. ضرایب مدل های ارایه شده بر مبنای روش های اقتصاد سنجی براورد شده است. نتایج آن حاکی از این است که بین توزیع درآمد و نرخ طلاق رابطه معنی داری وجود دارد به این صورت که با بدتر شدن نحوه توزیع درآمد ، تعداد طلاقهای اتفاق ا...

Journal: :Acta Paediatrica 2021

Cough is a common symptom in children and major cause of outpatient visits. As child's cough can anxiety, interfere sleep impact quality life, parents tend to bring the doctor relieve their symptoms. Once commonly used, antitussives are no longer recommended due inefficiency potential for severe side effects.1 The national guidelines have impacted clinical practice, as use racemic adrenaline br...

2013
Gabriela Rubio Kathleen McGarry Maria Casanova

Using a large number of sources, this paper documents the sharp and continuous decline of arranged marriages (AM) around the world during the past century, and describes the factors associated with this transition. To understand these patterns, I construct and empirically test a model of marital choices that assumes that AM serve as a form of informal insurance for parents and children, whereas...

Journal: :Graphs and Combinatorics 1991
Noga Alon Daniel J. Kleitman Richard J. Lipton Roy Meshulam Michael O. Rabin Joel H. Spencer

Let q be a prime power. It is shown that for any hypergraph ~,~ = {F~,..., Fdtq_~)+~ } whose maximal degree is d, there exists Z ¢ ~o c ~, such that IUF~oFI =-0 (rood q). For integers d, m __ 1 let fe(m) denote the minimal t such that for any hypergraph -~ = {Fz . . . . . Ft} whose maximal degree is d, there exists ~ ¢ o~ o c Y, such that I~F~ ~oFI -= 0 (mod m). Here we determine fd(m) when m i...

Journal: :Chest 2021

BackgroundIn 2018, influenza and pneumonia was the eighth leading cause of death in United States. Since 1950, non-Hispanic blacks (NHBs) have experienced higher rates mortality than whites (NHWs). Previous studies revealed geographic variation by race. The identification areas with greatest disparity may assist policymakers allocation resources, including for coronavirus disease 2019 pandemic....

2016
YOICHI MIYAZAKI Y. MIYAZAKI

We consider a 2m-th-order elliptic operator of divergence form in a domain  of Rn, assuming that the coefficients are Hölder continuous of exponent r 2 (0, 1]. For the self-adjoint operator associated with the Dirichlet boundary condition we improve the asymptotic formula of the spectral function e( 2m , x , y) for x = y to obtain the remainder estimate O( n + dist(x , ) 1 n 1) with any 2 (0,...

2000
A. W. Blain D. T. Frayer J. J. Bock N. Z. Scoville

The redshifted spectral line radiation emitted from both atomic fine-structure and molecular rotational transitions in the interstellar medium (ISM) of high-redshift galaxies can be detected in the centimetre, millimetre and submillimetre wavebands. Here we predict the counts of galaxies detectable in an array of molecular and atomic lines. This calculation requires a reasonable knowledge of bo...

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