نتایج جستجو برای: repeated measure study

تعداد نتایج: 4237634  

Journal: :Circulation 2008
Lisa M Sullivan

A repeated-measures design is one in which multiple, or repeated, measurements are made on each experimental unit. The experimental unit could be a person or an animal, and repeated measurements might be taken serially in time, such as in weekly systolic blood pressures or monthly weights. The repeated assessments might be measured under different experimental conditions. Repeated measurements ...

2009
CHARLES L. SAMUELS

Dubickas and Smyth defined the metric Mahler measure on the multiplicative group of non-zero algebraic numbers. The definition involves taking an infimum over representations of an algebraic number α by other algebraic numbers. We verify their conjecture that the infimum in its definition is always achieved as well as establish its analog for the ultrametric Mahler measure.

2018
Matthew J. Kerry

Statistical screening of self-report data is often advised to support the quality of analyzed responses – For example, reduction of insufficient effort responding (IER). One recently introduced index based on Mahalanobis’s D for detecting outliers in cross-sectional designs replaces centered scores with difference scores between repeated-measure items: Termed person temporal consistency (Dptc)....

Ehsan Hafezi Houshang Taghizadeh

In this paper, using supply chain operational reference, the reliability evaluation of available relationships in supply chain is investigated. For this purpose, in the first step, the chain under investigation is divided into several stages including first and second suppliers, initial and final customers, and the producing company. Based on the formed relationships between t...

2012
Effie Lai-Chong Law Paul van Schaik

The fundamental problem of defining what UX is (or is not) has a significant influence on another challenging question: to measure or not to measure UX constructs. The answer of most, if not all, UX researchers and practitioners, would probably be “It depends!” As we were motivated to find out “depending on what”, we conducted semi-structured interviews with eleven UX professionals where a set ...

2005
Hoon Chang Vishal Misra Dan Rubenstein

Routing protocols in most ad hoc networks use the length of paths as the routing metric. Recent findings have revealed that the minimum-hop metric can not achieve the maximum throughput because it tries to reduce the number of hops by containing long range links, where packets need to be transmitted at the lowest transmission rate. In this paper, we investigate the tradeoff between transmission...

Journal: :Intelligent Automation & Soft Computing 2012
Jianxi Yang Jianting Zhou Ruiqiang Yue Lei Wu

Due to long-term unpredictability of nonlinear system, based on the analysis of the bridge structure nonlinear characteristics and chaotic time series kolmogorov entropy extraction algorithm, calculate kolmogorov entropy of responding information time series to obtain the most predictable points of complex structure system state, so providing the theoretical support for predictable confidence i...

2005
Albert C. S. Wong Wai-Sum Chan

Stochastic modeling of investment returns is an important topic for actuaries who deal with variable annuity and segregated fund investment guarantees. The traditional lognormal stock return model is simple, but it is generally less appealing for longer-term problems. In recent years, the use of regime-switching lognormal (RSLN) processes for modeling maturity guarantees has been gaining popula...

Journal: :journal of rehabilitation in civil engineerin 0
mostafa sadeghnejad ph.d. candidate, faculty of civil engineering, semnan university, semnan, iran. gholamali shafabakhsh professor, faculty of civil engineering, semnan university, semnan, iran.

asphalt modification/reinforcement has received considerable attention as viable solutions to enhance flexible pavement performance. this is mainly prompted by the unsatisfactory performance of traditional road materials exposed to dramatic increases and changes in traffic patterns. this paper presents the evaluation of fatigue behaviour of nano reinforced stone mastic asphalt mixtures. fatigue...

Journal: :iranian journal of neurology 0
alia saberi poursina hospital, guilan university of medical sciences, guilan, iran. hamid reza hatamian poursina hospital, guilan university of medical sciences, guilan, iran keyvan esmaeilzadeh urmia university of medical sciences, urmia, iran abtin heydarzadeh faculty of medicine, guilan university of medical sciences, guilan, iran

background: we intended to investigate the serum magnesium impact upon the disability after ischemic stroke. methods: a total of 67 ischemic stroke patients who less than 6 hours had passed from their attacks participated in this cross sectional study. we have measured their serum magnesium level and determined its correlation with their rankin disability score (rds) in the first 72 hours (rds0...

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