PURPOSE/OBJECTIVES To (a) investigate fatigue and sleep patterns of children and adolescents at home and (b) examine factors associated with fatigue and sleep.. DESIGN Descriptive with repeated measures
. SETTING Homes of study participants in Los Angeles and Orange, California
. SAMPLE 35 children and adolescents with cancer. METHODS Data were collected using the PedsQL Multidimensiona...

In 1998, a large scale prospective cohort study of prolonged fatigue in the working population was started in the Netherlands. The ultimate goal of this Maastricht Cohort Study was to identify risk factors involved in the aetiology and natural course of prolonged fatigue in the working population and to develop preventive measures and treatments that can be used in occupational health settings....

The objective of this study is to evaluate the spatial ability differences and fatigue between three different students on different interface. An experiment was design to compare the differences between using the convention book (C-book) and using tablet computer, and compare the differences between three department students. Fifty-four vocational high school students, age sixteen to eighteen,...

Enhancement in fatigue performance of welded joints by Ultrasonic Impact Treatment (UIT) was evaluated with large-scale rolled beam and built-up specimens having yield strength of 345 to 760 MPa. Eighteen rolled-beam specimens having welded details at cover plates and transverse stiffeners and eight built-up specimens having only transverse stiffener details were fatigue tested after treating t...

A probabilistic approach of the current thermal fatigue design of nuclear components is set up. It aims at incorporating all kinds of uncertainties that affect the thermal fatigue behaviour. This approach is based on the theory of structural reliability. Two dual approaches of reliability analysis for the thermal fatigue are defined, respectively, in the time domain and in the frequency domain....

From an engineering point of view, prediction of fatigue crack nucleation in automotive rubber parts is an essential prerequisite for the design of new components. We have derived a new predictor for fatigue crack nucleation in rubber. It is motivated by microscopic mechanisms induced by fatigue and developed in the framework of Configurational Mechanics. As the occurrence of macroscopic fatigu...

Background: Cancer patients face a number of problems, among those pain and fatigue are the most common. To manage pain and fatigue among cancer patients, studies now a days are even focusing on use of non-pharmacological/ non invasive methods as exercises, imagery etc. But studies on effect of progressive muscle relaxation (P.M.R) exercises on pain and fatigue among admitted patients are scarc...

Reliability analysis of fatigue lifetime design has two assignments: a. To forecast fatigue lifetime of the structure on given reliability level, b. To evaluate reliability level of the structure on given service conditions, material features and designing dimensions. It aims at evaluating the structure’s designing quality and providing a basis for designing improvement or manufacturing. At mea...

OBJECTIVE Many allergy patients complain of fatigue, moodiness, and dysphoria during their allergy seasons. This study evaluated the effect of symptomatic allergic rhinitis on both fatigue level and mood. METHOD Symptomatic ragweed allergic rhinitis patients on no medications and healthy control subjects completed the Multi-Dimensional Fatigue Inventory and the Positive Affect-Negative Affect...

A general methodology for fatigue reliability degradation of railroad wheels is proposed in this paper. Both fatigue crack initiation and crack propagation life are included in the proposed methodology using previously developed multiaxial fatigue models by the same authors. A response surface method in conjunction with design of experiments is used to develop a closed form approximation of the...