نتایج جستجو برای: torsion unit

تعداد نتایج: 412322  

Haleh Ayatollahi Leila Zarei, Tahereh Behrozi-lak

      Ovarian torsion (adnexal torsion) is an uncommon disorder in pediatrics and should be considered as a differential diagnosis of abdominal pain in preteen girls. Almost 70% of ovarian torsions are seen in young girls older than 20 years, but it could also occur in preteen girls. Sonography is one of the most useful methods to diagnose ovarian torsion. In pediatrics, ovarian torsion should ...

Journal: :Communications Faculty of Sciences University of Ankara. Series A1: mathematics and statistics 2021

In this work we introduce a new concept, namely, τ s τs -extending modules (rings) which is torsion-theoretic analogues of extending and then extend many results from to concept. For instance show that for any ring R with unit, if $_{R}R$ purely only every cyclic -nonsingular -module flat. Also, make classification the direct sums rings be -extending.

2014
Saki Mohri Shinji Ohisa Keiichi Noguchi Noriyuki Yonezawa Akiko Okamoto

The title compound, C28H22N2O8, possesses crystallographically imposed twofold symmetry, with the two central carbon atoms of the naphthalene unit lying on the rotation axis. The two benzoyl groups in the mol-ecule are twisted away from the attached naphthalene unit with a C-C-C=O torsion angle of 49.05 (15)° between the naphthalene unit and the carbonyl group. The dihedral angle between the na...

Ali Akbar Jafarian, Farnad Imani, Homa Mottaghi, Mohammad Reza Al-e-bouyeh, Peyman Rahmanizadeh,

 Abstract  Testicular torsion is a medical emergency appearing at any age, the prevalence of  which in the neonatal period comprises 10% of the whole cases occurring at any  point in life. Among all the cases being diagnosed at birth, 70% has occurred in the  prenatal period and 30% in the neonatal period. Generally, the most common symptoms  of testicular torsion during postnatal period includ...

Journal: :medical journal of islamic republic of iran 0
ali akbar jafarian dept. of anesthesiology, rasoul akram teaching hospital,iran university of medical sciences (iums), tehran-iran,سازمان اصلی تایید شده: دانشگاه علوم پزشکی ایران (iran university of medical sciences)سازمان های دیگر: rasoul akram teaching hospital, farnad imani dept. of anesthesiology, rasoul akram teaching hospital, iums, tehran-iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی ایران (iran university of medical sciences)سازمان های دیگر: rasoul akram teaching hospital, mohammad reza al-e-bouyeh dept. of anesthesiology, rasoul akram teaching hospital, iums, tehran-iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی ایران (iran university of medical sciences)سازمان های دیگر: rasoul akram teaching hospital, homa mottaghi dept. of pediatrics, lolagar hospital, iums, tehran-iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی ایران (iran university of medical sciences) peyman rahmanizadeh dept. of urology, lolagar hospital, iums, tehran-iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی ایران (iran university of medical sciences)

abstract  testicular torsion is a medical emergency appearing at any age, the prevalence of  which in the neonatal period comprises 10% of the whole cases occurring at any  point in life. among all the cases being diagnosed at birth, 70% has occurred in the  prenatal period and 30% in the neonatal period. generally, the most common symptoms  of testicular torsion during postnatal period include...

ژورنال: پژوهش های ریاضی 2021

An R-module M is called Almost uniserial module, if any two non-isomorphic submodules of M are linearly ordered by inclusion. In this paper, we investigate some properties of Almost uniserial modules. We show that every finitely generated Almost uniserial module over a Noetherian ring, is torsion or torsionfree. Also the construction of a torsion Almost uniserial modules whose first nonzero Fit...

Journal: :archives of cardiovascular imaging 0
zahra ojaghi-haghighi echocardiography research center, rajaie cardiovascular, medical and research center, iran university of medical sciences, tehran, ir iran azin alizadehasl echocardiography research center, rajaie cardiovascular, medical and research center, iran university of medical sciences, tehran, ir iran; echocardiography research center, rajaie cardiovascular, medical and research center, iran university of medical sciences, tehran, ir iran. tel: +98-2123922190, fax: +98-2122055594 arash hashemi general cardiologist, erfan hospital, tehran, ir iran

conclusions these findings emphasize the potential clinical benefits of therapeutic procedures such as cardiac resynchronization therapy (crt) or apex-sparing volume-reduction surgery in dcm. a better definition of the role and implications of reverse apical torsion in dcm and its importance and effectiveness in making therapeutic decisions like crt implantation requires further studies. case p...

Journal: :Composite Structures 2021

In this article, the Second Strain Gradient (SSG) theory proposed by Mindlin is used within a Wave Finite Element Method (WFEM) framework for dynamic analysis of one-dimensional Euler–Bernoulli bending beam and torsional bar. Firstly, strong forms continuum models including governing equations boundary conditions torsion cases, respectively, are derived using Hamilton’s principle. New “non-loca...

2013
Maxim Y. Sheinin Ming Li Mohammad Soltani Karolin Luger Michelle D. Wang

The nucleosome, the fundamental packing unit of chromatin, has a distinct chirality: 147 bp of DNA are wrapped around the core histones in a left-handed, negative superhelix. It has been suggested that this chirality has functional significance, particularly in the context of the cellular processes that generate DNA supercoiling, such as transcription and replication. However, the impact of tor...

2011
Nübia Boechat Maria de Lourdes G. Ferreira Monica M. Bastos James L. Wardell Solange M. S. V. Wardell Edward R. T. Tiekink

The asymmetric unit of the title hydrate, C(9)H(8)ClN(3)O·0.5H(2)O, comprises two independent 1,2,3-triazole mol-ecules and a water mol-ecule of crystallization. The dihedral angles between the six- and five-membered rings in the 1,2,3-triazole mol-ecules are 12.71 (19) and 17.3 (2)°. The most significant different between them is found in the relative orientations of the terminal CH(2)OH group...

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