The purpose of this study was to examine the test-retest reliability and the criterion validity of a newly developed chair sit-and-reach (CSR) test as a measure of hamstring flexibility in older adults CSR performance was also compared to sit-and-reach (SR) and back-saver sit-and-reach (BSR) measures of hamstring flexibility. To estimate reliability, 76 men and women (M age = 70.5 years) perfor...

background: the rate of nosocomial infection appears to depend on whether it is calculated using the center for disease control (cdc) or carrier state criteria. the objective of this study was to differentiate between primary endogenous (pe), secondary endogenous (se) and exogenous (ex) infections, and to compare this classification with cdc criteria for nosocomial infections. methods: children...

realism is one of the main concepts of the philosophy that has several meanings and there is no standard application for it in the philosophical texts. issues and problems concerning this concept are numerous and belong to the several contexts such as ontology, semantics, epistemology, logic, methodology, and ethics. therefore, in the definition of this concept you can find several criterions a...

according to the unccd definition, “desertification” is land degradation in arid, semi-aridand dry sub-humid areas resulting from various factors, including climatic variations andhuman activities. it has been recognized as a major economic, social, and environmentalproblem in many countries of the world. the medalus methodology is a practical approachto assess the present status of desertifica...

Flexibility is an important performance indicator of any engineered system, yet a term often vaguely defined in the infrastructure domain. We have identified that though infrastructures often have more complex external interactions than process systems; infrastructure flexibility could still be dealt with in the existing process systems engineering (PSE) framework if a proper conceptual definit...

In this paper optimal control problem of fuzzy linear time invariant systems is considered. Determining of system optimal input with minimizing quadratic integral criterion by using Pontryagin Minimum Principle will make the Fuzzy Partial Differential Equations [FPDEs] system solve the problem. The quality of obtaining system optimal input by solving the FPDEs system has been studied based on n...

introduction. iranian talented university students who take term averages below 17 for at least twice can’t use facilities of educational legislation for gifted and talented students in universities. this study deals with validity of this rule. methods. renzullis three ring conception of giftedness was selected as gifted definition. obtaining grade point averages equal or more than 15 was regar...