نتایج جستجو برای: impediment

تعداد نتایج: 3162  

Journal: :Molecular ecology resources 2009
M Alex Smith Jose Fernandez-Triana Rob Roughley Paul D N Hebert

Frequently, the diversity of umbrella taxa is invoked to predict patterns of other, less well-known, life. However, the utility of this strategy has been questioned. We tested whether a phylogenetic diversity (PD) analysis of CO1 DNA barcodes could act as a proxy for standard methods of determining sampling efficiency within and between sites, namely that an accumulation curve of barcode divers...

Journal: :journal of research in medical sciences 0
mojgan janighorban nikoo yamani hojatollah yousefi

background: the organizational environment and its existing context may deeply affect on empowerment of individuals. in educational institutions as well as other organizations, students are going to be powerful when opportunities for growth and achievement of power are provided for them in learning and educational environments. this study has been carried out to explain the facilitators and imp...

P. Davoudifar

Cosmic Rays (CR) travel at speeds essentially indistinguishable from the speed of light. However whilst travelling through magnetic fields, both regular and turbulent, they are delayed behind the light since they are usually charged particles and their paths are not linear. Those delays can be so long that they are an impediment to correctly identifying sources which may be variable in time. Fu...

Journal: :Circulation research 1992
J R Resar J Z Livingston F C Yin

The hypothesis that ventricular in-plane tensile wall stresses are the major determinant of systolic coronary flow was investigated in this study. We measured coronary artery inflow in the maximally vasodilated bed of the isolated beating septum (n = 10) during two modes of contraction characterized by markedly different levels of developed in-plane stress. An increase in contractility was indu...

2015
Florian M. Steiner Marco Pautasso Herbert Zettel Karl Moder Wolfgang Arthofer Birgit C. Schlick-Steiner

Current science evaluation still relies on citation performance, despite criticisms of purely bibliometric research assessments. Biological taxonomy suffers from a drain of knowledge and manpower, with poor citation performance commonly held as one reason for this impediment. But is there really such a citation impediment in taxonomy? We compared the citation numbers of 306 taxonomic and 2291 n...

2017
Parul Sinha Uma Gupta Jyotsna Singh Anand Srivastava

Violence on women has been present in our society since times immemorial. The ethics, the values, the morals, the culture of the society has been framed in such a way or we can say structured in such a way so as to promote exploitation of this segment which is in reality the root of the society. The concept of STRUCTURAL VIOLENCE was introduced by Johan Galtung in 1969. It refers to a form of v...

Journal: :Molecules 2018
Jakub Kryczka Joanna Boncela

Multidrug resistance, mediated by members of the ATP-binding cassette (ABC) proteins superfamily, has become one of the biggest obstacles in conquering tumour progression. If the chemotherapy outcome is considered successful, when the primary tumour volume is decreased or completely abolished, modulation of ABC proteins activity is one of the best methods to overcome drug resistance. However, i...

2002
Shu-Heng Chen Chung-Ching Tai Bin-Tzong Chie

In this paper, we conduct two experiments within an agent-based double auction market. These two experiments allows us to see the effect of learning and smartness on price dynamics and allocative efficiency. Our results is largely consistent with the stylized facts observed in experimental economics with human subjects. From the amelioration of price deviation and allocative efficiency, the eff...

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