نتایج جستجو برای: constant and variable stoichiometry

تعداد نتایج: 16869885  

2016
Branka S. Dimitrijević Katarina S. Vukadinović Ivana P. Vukićević

Branka S. Dimitrijević , Miloš Lj. Nikolić , Katarina S. Vukadinović , Ivana P. Vukićević d University of Belgrade, Faculty of Transport and Traffic Engineering a e-mail: [email protected], ORCID iD: http://orcid.org/0000-0002-8102-7605, b e-mail: [email protected], ORCID iD: http://orcid.org/0000-0001-5892-8248, c e-mail: [email protected], ORCID iD: http://orcid.org/0000-0003-09...

2016
Alena Janda Anthony Bowen Neil S. Greenspan Arturo Casadevall

The adaptive humoral immune response is responsible for the generation of antimicrobial proteins known as immunoglobulin molecules or antibodies. Immunoglobulins provide a defense system against pathogenic microbes and toxins by targeting them for removal and/or destruction. Historically, antibodies have been thought to be composed of distinct structural domains known as the variable and consta...

ژورنال: سنجش و ایمنی پرتو 2020

Recently, proton therapy is used as one of the effective methods for treating various types of cancer in clinical treatment. An appropriate formalism to obtain relative biological effectiveness values for treatment planning studies is needed in this hadrontherapy technique. Hereby, the quantity of biological dose, instead of using the physical doses, is introduced to evaluate the biological eff...

Journal: :Organic & biomolecular chemistry 2016
Lan Yao Li-Juan Liu Zhong-Yuan Xu Shao-Zhen Nie Xiao-Qing Xiao Chang-Qiu Zhao

The variable mechanism for substitution of P-stereogenic phosphoryl chloride with alkynyl metallic reagents, which depends on temperature, stoichiometry of starting materials, and the structure of the nucleophilic reagent, is assumed as either SN2-like or Berry pseudorotation of pentacoordinated phosphorus intermediates, affording inversion and retention products, respectively. The formation of...

Cost efficiency evaluation is a very important and applicable issue in Data Envelopment ‎Analysis (DEA). In this paper, the classical cost efficiency model in which all the input ‎prices are known and fixed for each decision making unit is developed via undesirable ‎outputs with the weak disposability axiom. The proposed model is a nonlinear model ‎under the variable returns to scale condition,...

2005
John D. Schade Javier F. Espeleta Christopher A. Klausmeier Megan E. McGroddy Steven A. Thomas Lixia Zhang

The development of ecological stoichiometry has centered on organisms and their interactions, with less emphasis on the meaning or value of a comprehensive ecosystem stoichiometry at larger scales. Here we develop a conceptual framework that relates internal processes and exogenous factors in spatiallyand temporally-linked ecosystems. This framework emerges from a functional view of ecosystem s...

Journal: :journal of paramedical sciences 0
elaheh sajjadi physiotherapy department, rehabilitation school, tehran university of medical sciences, tehran, iran gholam reza olyaei faculty member, physiotherapy department, rehabilitation school, tehran university of medical sciences, tehran, iran saeed talebian faculty member, physiotherapy department, rehabilitation school, tehran university of medical sciences, tehran, iran mohammad-reza hadian shohre jalaie faculty member, physiotherapy department, rehabilitation school, tehran university of medical sciences, tehran, iran

a number of studies have investigated the effect of age, trauma, disease and fatigue on cervical joint position sense. however, there is an absence in data regarding the role of posture on proprioception. the aim of the current study was to investigate the effect of forward head posture (fhp) on cervical joint position sense. twenty forward head posture volunteers (14 women, 6 men), with the me...

Journal: :Physics in medicine and biology 2009
Grace Tang Matthew A Earl Cedric X Yu

Single-arc intensity-modulated arc therapy (IMAT) has gained worldwide interest in both research and clinical implementation due to its superior plan quality and delivery efficiency. Single-arc IMAT techniques such as the Varian RapidArc deliver conformal dose distributions to the target in one single gantry rotation, resulting in a delivery time in the order of 2 min. The segments in these tec...

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