Search PubMed⌕ Search

Biomedical subjects

J Pesek

Publications and source records attributed to J Pesek.

At least 19 recordsLinked to original sources
PubMed2005

Some trace elements in coal of the Czech Republic, environment and health protection implications.

Mining for coal and its utilization have various impacts on the surrounding environment. Huge volumes of waste materials which are by-products of both the underground and open cast coal mining, pose one of the major environmental hazards in addition to air pollution caused by coal burning in power plants in the Czech Republic. Some of these risks could be reduced when having accurate and comprehensive data on coal quality. Statistical data processing of almost 35,000 coal samples from Late Paleozoic and Tertiary coal basins of the Czech Republic provided a unique information on the quality of lignite, sub-bituminous and bituminous coals and anthracites including the content of toxic trace elements (As, Be, Hg, Pb and Se). In this context related environment and health risks and protection implications are discussed.

Air Pollutants↗
PubMed2001

Ginger: an ethnomedical, chemical and pharmacological review.

Powerful medicinal properties have been recorded for Zingiber officinale, commonly known as ginger. All of these medicinal activities have been compiled with 99 references to the present status of the plant in the literature. Volatile components and the presence of trace metals are included. In addition, details of individual medicinal activities are given and the molecular structures of identified organic metabolites and their synthesis are described.

Anticholesteremic Agents↗
PubMed1980

[Mathematical models in epizootiology].

Mathematical modelling in epizootology makes it possible to forecast the occurrence and spreading of infection, to learn the main factors of the origin and spread of infection, or to test hypotheses on these factors. Therefore epizootological models must be correct from the biological and mathematical view-point. They should not contradict to experimental facts, must be sufficiently sensitive to important factors, and must be able to approximate real epizootological phenomena and processes. Examples of the construction of simple deterministic and stochastic models of exogenous infections whose etiological agents meet the conditions of Henle-Koch's postulates are used for demonstrating the basic approaches to the use of mathematical models for the evaluation of epizootological analyses and programmes of infection control.

Animals↗
PubMed1979

Rotavirus gastroenteritis in infants and young children.

The electronmicroscopic examination of stool samples from 18 infants and young children with gastroenteritis, hospitalized at the Clinic of Infectious Diseases in Prague, was carried out. In ten children rotavirus was found in the faeces and the bacteriological findings were negative. Rotavirus particles were aggregated by convalescent child sera and by normal human gamma globulin. The clinical picture was characterized by the sudden onset of vomiting and fever, in one case with febrile convulsions. Diarrhoea was watery and yellow-green, and usually persisted for four to five days. The condition of the children improved rapidly after rehydration and a special diet. Older siblings, and in one family also adult members, were frequently affected.

Child, Preschool↗
PubMed1979

Infantile gastroenteritis virus.

The authors demonstrated presence of virus particles of 55--75 nm manifesting morphological properties of the virus of infantile gastroenteritis (rotavirus, orbivirus, reo-like virus) by means of the electron microscopy, when investigating samples of stools of children sufferring from non-bacterial diarrheal diseases. Stool extracts were incubated with commercial gamma globulins or with convalescent sera provoking formation of extensive immunocomplexes. The complexes do not form when stool extracts are incubated with sera obtained from initial stages of the disease. This finding is an evidence of the presence of the virus in question among our population.

Age Factors↗