Biomedical subjects
Publications and source records attributed to J Lach.
We report new precision measurements of the lifetimes of the Lambda(+)(c) and D0 from SELEX, the charm hadroproduction experiment at Fermilab. Based upon 1630 Lambda(+)(c) and 10 210 D0 decays we observe lifetimes of tau[Lambda(+)(c)] = 198.1+/-7.0+/-5.6 fs and tau[D0] = 407.9+/-6.0+/-4.3 fs.
OBJECTIVE: The analysis occurrence of developmental defects of newborns in the City Hospital in Bydgoszcz during the period 1995-1999. MATERIALS AND METHODS: Over the period of 5 years, 14,943 newborns delivered in City Hospital in Bydgoszcz. The group of 358 (2.40%) with developmental anomalies was analysed retrospectively. The subject of the study was to estimate the types of malformations and their frequency. RESULTS: In our material cardiovascular anomalies (29.05%), reproductive system anomalies (20.11%) and muscosceletal anomalies (18.72%) were most frequent. Breech-presented or transverse lie fetuses had double the risk of any anomalies. In addition, pre-term delivery were not positively associated with any newborn defects. The frequency of occurrence cesarean sections was positively correlated with presence of congenital malformations.
OBJECTIVE: To evaluate the effects of leaving the visceral peritoneum open and hysterotomy closing by a one-layer continuous locked. MATERIALS AND METHODS: The analysis of 868 women underwent caesarean section had been performed. All operated patients were divided into three compared groups. 268 women operated between 01.05.96 and 31.01.97, belonged into I group, which had the visceral peritoneum sutured during caesarean section, in comparison to the II group operated between 01.05.97-31.01.98 (n = 280), which had only one modification in surgical procedure--the visceral peritoneum was left unsutured and to the group operated between 01.05.98-31.01.99 (n = 320) with second modification--the hysterotomy was closed by a one-layer continuous locked. RESULTS: The average operating time was significantly shorter at group II and III. After surgery we have not observed significant differences in frequency of febrile morbidity (6.34% in I group, 8.93% in second group and 8.44% in third group) and postoperative complications (respectively 9.33; 11.07 and 10.63%). CONCLUSIONS: Non-closure of the visceral peritoneum and closure of the hysterotomy by a one-layer continuous locked has no influence on the number of the post surgical complications. Modifications method of cesarean section showed significantly decreased operative time and chirurgical materials use.
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In 1994/96 there were examined 588 children attending four Warsaw's kindergartens. Investigations were made by means of a standard coprological methods and by ELISA method for the presence of coproantigens of Giardia. The extensiveness of the infection was about 12.5%. It seems that now only oxyuriosis is the most important epidemiological problem among these children. The complexity of diagnosis and treatment of infected children and some health's education may improve their health and prevent the spreading of invasion.
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General analysis of 1075 knee arthrotomies in 1037 patients has been carried out. Young, physically active males prevailed 39 per cent of these procedures). In 20 per cent of the cases the injury to the structure other then the meniscus was responsible for the knee malfunction. A major damage to the articular surface has been found in 24 per cent of the cases. In 18 per cent it was associated with meniscal injury, in 6 per cent with the hypertrophied fad pad.
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Albendazole (Smith Kline, Beecham) in a dose of 20 mg/kg/day was given to B6C3F1 mice exposed to 300 larvae of T. pseudospiralis or T. spiralis. The drug was introduced on days 2, 3 and 4; or 4, 5 and 6; or 18, 19 and 20 after infection. It limited the intensity of intestinal and muscle phases of trichinellosis. Given at the stage of maturation of adult forms and production of new-born larvae, the drug caused almost total elimination of both species from the intestines of mice and a decrease in the numbers of muscle larvae, with a tendency towards a greater reduction of larvae and adults of T. pseudospiralis. The drug did not change the course of infection when given at the phase of infectivity of larvae.