نتایج جستجو برای: 3744

تعداد نتایج: 107  

2014
R. M. Shannon S. Osłowski S. Dai M. Bailes G. Hobbs R. N. Manchester W. van Straten C. A. Raithel V. Ravi L. Toomey N. D. R. Bhat S. Burke-Spolaor W. A. Coles M. J. Keith M. Kerr Y. Levin J. M. Sarkissian J.-B. Wang L. Wen

High-sensitivity radio-frequency observations of millisecond pulsars usually show stochastic, broad-band, pulse-shape variations intrinsic to the pulsar emission process. These variations induce jitter noise in pulsar timing observations; understanding the properties of this noise is of particular importance for the effort to detect gravitational waves with pulsar timing arrays. We assess the s...

دکتر حجت الله حسن لاریجانی رضا دیبا

هدف پژوهش حاضر تعیین میزان رعایت استاندارد در تهیه چکیده فارسی پایان‌نامه‌های کارشناسی ارشد دانشگاه امام صادق(ع) از سال 1382-1368 است. برای گردآوری اطلاعات مورد نیاز از چک لیست مربوط به استانداردهای بین‌المللی ایزو در چکیده‌نویسی استفاده شده است. جامعه مورد مطالعه چکیده‌های فارسی پایان‌نامه‌های کارشناسی ارشد دانشگاه امام صادق (ع) از سال 1382-1368 بوده است. که از میان پایان‌نامه‌های موجود 63 مور...

Journal: :Applied Energy 2022

Numerous subsurface factors, including geology and fluid properties, can affect the connectivity of storage spaces in depleted reservoirs; hence, flow simulations become more complicated, predicting their deliverability remains challenging. This paper applies Machine Learning (ML) techniques to predict underground natural gas (UNGS) reservoirs. First, three baseline models were developed based ...

Journal: :Astronomy and Astrophysics 2021

Pulsar radio emission undergoes dispersion due to the presence of free electrons in interstellar medium (ISM). The dispersive delay arrival time pulsar signal changes over varying ISM electron column density along line sight. Correcting for this accurately is crucial detection nanohertz gravitational waves using Timing Arrays. In work, we present in-band and inter-band DM estimates four pulsars...

Journal: :تحقیقات کتابداری و اطلاع رسانی دانشگاهی 0
رضا دیبا دکتر حجت الله حسن لاریجانی

this research is to determine considering the standards which are applied for the persian abstract of imam sadeq university's dissertations from 1368 and the accord ability of it with the iso of preparing the abstracts. the population for this research is the persian abstracts from 1368 to 1382. the main results show that in the faculties of imam sadeq university, the political faculty of ...

Journal: :Journal of Astrophysics and Astronomy 2022

Decades long monitoring of millisecond pulsars, which exhibit highly stable rotational periods, in pulsar timing array experiments is on the threshold discovering nanohertz stochastic gravitational wave background. This paper describes Indian Pulsar (InPTA) experiment, employs upgraded Giant Metrewave Radio Telescope (uGMRT) for an ensemble pulsars this purpose. We highlight InPTA's observation...

Journal: :British Journal of Surgery 2021

Abstract Background The role of laparoscopic rectal cancer surgery has been questioned owing to conflicting reports on pathological outcomes from recent RCTs. However, it is unclear whether these markers and the surgical approach have an impact oncological outcomes. This study assessed open resections. Methods A meta-analysis RCTs was performed. Primary endpoints included (disease-free survival...

Journal: :Expert Syst. Appl. 2012
Felix Caicedo Carola Blazquez Pablo Miranda

0957-4174/$ see front matter 2012 Elsevier Ltd. A doi:10.1016/j.eswa.2012.01.091 ⇑ Corresponding author. Tel.: +56 (32) 227 3744. E-mail addresses: [email protected] (F. C (C. Blazquez), [email protected] (P. Miranda). 1 Tel.: +56 (2) 661 5863. 2 Tel.: +56 (32) 227 3701. Intelligent parking reservation (IPR) systems allow customers to select a parking facility according to their preferenc...

Journal: :Journal of the National Cancer Institute 2002
Elena Tamborini Lorena Bonadiman Veronica Albertini Marco A Pierotti Silvana Pilotti

BACKGROUND Ewing's sarcoma cells express c-kit, a receptor tyrosine kinase, and its ligand, stem cell factor (SCF), creating a potential autocrine loop that may promote tumor survival. We thus examined whether the specific tyrosine kinase inhibitor imatinib mesylate (hereafter imatinib; formerly STI571) could inhibit the proliferation of Ewing's sarcoma cells in vitro and in vivo. METHODS The...

Journal: :Pediatrics 2015
Tiffany Riehle-Colarusso Andrew Autry Hilda Razzaghi Coleen A Boyle William T Mahle Kim Van Naarden Braun Adolfo Correa

BACKGROUND We investigated the prevalence of receipt of special education services among children with congenital heart defects (CHDs) compared with children without birth defects. METHODS Children born from 1982 to 2004 in metropolitan Atlanta with CHDs (n = 3744) were identified from a population-based birth defect surveillance program; children without birth defects (n = 860 715) were iden...

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