OBJECTIVE The aim of the study was to establish factors associated with poor sleep and to assess the relationship between self-evaluated sleep quality and health-related quality of life. MATERIAL AND METHODS Sleep complaints were evaluated using Basic Nordic Sleep Questionnaire, and health-related quality of life was assessed by SF-36. Subjective data about sleep quality were obtained from 16...

BACKGROUND Sleepiness while driving has been regarded as a major cause of death due to traffic accidents. We compared the degree of sleepiness across five different working time periods (first, morning, post-lunch, afternoon, and last) among Korean bus drivers with different shift types (Daily two shift/Alternating day shift). METHOD We interviewed 332 bus drivers with two shift types (Daily ...

Relevance . The job of Federal Fire-Fighting Service (FFS) officers the State EMERCOM Russia is among global top 10 occupations with evident risk health functional reserves depletion, prevalence early occupational diseases, injuries and even death. Traditionally, investigators focus on circulatory diseases how they affect firefighters’ health. objective to provide research-based evidence showin...

IT IS OBVIOUS FROM his review of my book that J.H. Huebert holds me in genuine high esteem. This saddens him all the more for, in his view, I have squandered my talents on so unworthy a topic as Restoring the Lost Constitution: The Presumption of Liberty, which he characterizes as “an unfortunate waste of talent for a powerful mind such as Randy Barnett’s” (p. 108). While there is much that I d...

Sensitive Arecibo observations provide an unprecedented ability to detect nulls for an accurate pulse-modulation quelling (PMQ) analysis. We demonstrate that a number of conal pulsars show “periodic nulling” similar to the phenomenon found earlier in pulsar B1133+16.

The puzzling phenomenon of pulsar kicks, i.e. the observed large escape velocities of pulsars out of supernova remnants, is examined for compact stars with a strange quark matter core. The direct Urca process in quark matter is studied in the presence of a strong magnetic field. Conditions for an asymmetric emission of the produced neutrinos are worked out in detail, giving constraints on the t...

The web has become a major source of information to learn about a topic. With the continuous growth of information and its high connectivity, it is hard to follow only the links that are relevant and not to get lost in hyperspace. Our aim is to support people who read documents in a highly connected information space, helping them remain on focus. Our contextually-aware inbrowser text summarisa...

We report the discovery of an X-ray neb-ula associated with the nearby millisecond pulsar PSR J2124−3358. This is the first time that extended emission from a solitary millisecond pulsar is detected. The emission extends from the pulsar to the northwest by ∼ 0.5 arcmin. The spectrum of the nebular emission can be modeled by a power law spectrum with photon index of 2.2 ± 0.4. This is inline wit...

Information seekers often need to perceive the organization of the document content to find the destination in the information space. Much of this task involves navigating the information space. This article primarily delineates essential premises concerning navigation in information space. The paper also discusses how cognitive abilities, particularly spatial ability, affects user’s navigation...