نتایج جستجو برای: lpm

تعداد نتایج: 675  

Journal: :Advances in Mathematics 2016

2016
Elizabeth M Sefton Bhart-Anjan S Bhullar Zahra Mohaddes James Hanken

Vertebrate neck musculature spans the transition zone between head and trunk. The extent to which the cucullaris muscle is a cranial muscle allied with the gill levators of anamniotes or is instead a trunk muscle is an ongoing debate. Novel computed tomography datasets reveal broad conservation of the cucullaris in gnathostomes, including coelacanth and caecilian, two sarcopterygians previously...

2004
H. D. Hansen C. Biino T. J. Ketel Z. Z. Vilakazi

Experimental results for the bremsstrahlung energy loss of 149, 207, and 287 GeV electrons in thin Ir, Ta, and Cu targets are presented. For each target and energy, a comparison between simulated values based on the Landau-Pomeranchuk-Migdal ~LPM! suppression of incoherent bremsstrahlung is shown. For the electron energies investigated, the LPM effect enters the quantum regime where the recoil ...

در روند تکامل تئوری پرتفوی به دلیل وجود محدودیت­هایی که در مفروضات اساسی مدل بهینه سازی مارکوویتز وجود داشت، مفهوم ریسک نامطلوب و مدل میانگین-نیم­واریانس ابداع گردید که نقص مدل سنتی را برطرف کرده و وابستگی به مفروضات محدود کننده را از بین می­برد. اما این مدل نیز از نظر تئوری­های مطلوبیت اقتصادی سرمایه­گذار دچار یک نقص عمده بوده و به دلیل عدم اندازه­گیری نوسانات مثبت، مطلوبیت اقتصادی حرکات صعودی...

Journal: :Current biology : CB 1999
A Schneider T Mijalski T Schlange W Dai P Overbeek H H Arnold T Brand

Vertebrate internal organs display invariant left-right (L-R) asymmetry. A signalling cascade that sets up L-R asymmetry has recently been identified (reviewed in [1]). On the right side of Hensen's node, activin represses Sonic hedgehog (Shh) expression and induces expression of the genes for the activin receptor (ActRIIa) and fibroblast growth factor-8 (FGF8) [2] [3]. On the left side, Shh in...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2013
Frank J Tulenko David W McCauley Ethan L Mackenzie Sylvie Mazan Shigeru Kuratani Fumiaki Sugahara Rie Kusakabe Ann C Burke

Classical hypotheses regarding the evolutionary origin of paired appendages propose transformation of precursor structures (gill arches and lateral fin folds) into paired fins. During development, gnathostome paired appendages form as outgrowths of body wall somatopleure, a tissue composed of somatic lateral plate mesoderm (LPM) and overlying ectoderm. In amniotes, LPM contributes connective ti...

2015
Kai-Hong Tee

a r t i c l e i n f o The concept of asymmetric risk estimation has become more widely applied in risk management in recent years with the increased use of Value-at-risk (VaR) methodologies. This paper uses the n-degree lower partial moment (LPM) models, of which VaR is a special case, to empirically analyse the effect of downside risk reduction on UK portfolio diversification and returns. Data...

2017
Kyung Eun Lee Seo Ho Lee Eun-Seok Shin Eun Bo Shim

BACKGROUND Hemodynamic simulation for quantifying fractional flow reserve (FFR) is often performed in a patient-specific geometry of coronary arteries reconstructed from the images from various imaging modalities. Because optical coherence tomography (OCT) images can provide more precise vascular lumen geometry, regardless of stenotic severity, hemodynamic simulation based on OCT images may be ...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2010
Eliver Eid Bou Ghosn Alexandra A Cassado Gregory R Govoni Takeshi Fukuhara Yang Yang Denise M Monack Karina R Bortoluci Sandro R Almeida Leonard A Herzenberg Leonore A Herzenberg

The peritoneal cavity (PerC) is a unique compartment within which a variety of immune cells reside, and from which macrophages (MØ) are commonly drawn for functional studies. Here we define two MØ subsets that coexist in PerC in adult mice. One, provisionally called the large peritoneal MØ (LPM), contains approximately 90% of the PerC MØ in unstimulated animals but disappears rapidly from PerC ...

2016
Shisong Fang Tian Bai Lei Yang Xin Wang Bo Peng Hui Liu Yijie Geng Renli Zhang Hanwu Ma Wenfei Zhu Dayan Wang Jinquan Cheng Yuelong Shu

Sporadic human infections with the highly pathogenic avian influenza (HPAI) A (H5N6) virus have been reported in different provinces in China since April 2014. From June 2015 to January 2016, routine live poultry market (LPM) surveillance was conducted in Shenzhen, Guangdong Province. H5N6 viruses were not detected until November 2015. The H5N6 virus-positive rate increased markedly beginning i...

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