The enigma of fatigue.

The enigma of chronic fatigue.

Until new, reproducible criteria are established, the ubiquitous 'chronic fatigue state' emerges as a non-specific complaint shared by many different entities. Presently, it is neither a valid nor a verifiable medical diagnosis.

The Luteal Phase after GnRHa Trigger-Understanding An Enigma

The Enigma of Human T-Cell Leukemia Virus Type-1 (HTLV-1) Infection in Iran

Human T-cell lymphotropic virus type-I (HTLV-I) was the first human retrovirus associated with malignancy.  The prevalence of HTLV-I infection varies significantly in different regions of the world.  In this study, the prevalence of HTLV-I infection among ethnic Jews living in Shiraz, South of Iran, was investigated. 286 blood samples were obtained.  HTLV-1 antibody assay on serum samples was d...

Fundamental frequency and human perception of alcoholic intoxication in speech

The majority of speakers raise their fundamental frequency when speaking while intoxicated. In this study we describe three perception experiments based on manipulated sober and intoxicated speech from the German Alcohol Language Corpus to answer the question whether human listeners use fundamental frequency as a cue to recognize an intoxicated person. Our results show that although fundamental...

Estimation of Maximum Inclusion Size and Fatigue Limit in HSLA-100 Steel

The objective of the current study is to determine the fatigue limit of a clean and high-performance material named as HSLA-100 steel and to compare the obtained fatigue limit with that of theoretically predicted fatigue limit by statistics of extreme value (SEV) method. Also, the size of inclusions located at the site of fatigue crack nucleation on the fracture surface of the fatigue test spec...