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When reviewing the work demand factor on human it is necessary to consider the analyses of requirements on locomotive organs, mental processes and also requirements on human sensual functions. The document points out possibilities of usage selected methods of work activity studies in particular conditions. It shows that by realizing precautions, which are a result of the workload analysis it is possible to achieve workload decrease and also work productivity increase.
The work purpose: To develop, scientifically to prove and introduce medical-organizational model of protection of reproductive health of patients with inflammatory diseases of genitals. Materials and methods. The female population of fertile age with inflammatory diseases of the genitals, living in the Grodno area per 1954–2008 is studied. The system approach is used, following methods were applied: sanitary-statistical, economic-mathematical, expert estimations, sociological, historical, organizational experiment, modelling and forecasting. Results. On the basis of the carried out complex socially-hygienic research including studying of volumes and quality of medical aid, security of obstetric-gynecologic service material, financial and personnel resources, introductions of new organizational, medical and information technologies, studying of the reproductive equipments of women of fertile age and prospects of realisation by them of reproductive function, and also an expert estimation of the importance of the problems bound to disturbances in reproductive system, develop medical-organizational model of protection of reproductive health of women with inflammatory diseases of the genitals, based on state policy realisation in public health services. Model actions are realised in three stages: pregravidal improvement; medical maintenance in pregnancy; The organisation of medical aid to women in childbirth and newborns, and also aftertreatment after a failure of pregnancy and sorts.
The aim of the study was to evaluate the physical and biological properties of new surgical threads provided by Matcur, S.A. De C.V., Mexico. The study was performed on 12 piglets of a Polish Large White breed, divided into two equal groups and subjected to surgical procedures at the age of 40 d of life. The first group of animals (control group) was subjected to a sham operation, whereas the experimental group had undergone gastric fundectomy. The fundectomy consisted of cutting out the fundus of the stomach. The soft tissues of the fundectomised stomach were sutured, using catgut quirurgico simple and catgut quirurgico cromico threads. The sham operation consisted of cutting through soft tissues of the abdominal region, which enabled access to the anatomical structures of the stomach, analogically to the experimental group. During the operation procedure, the threads were assessed for the needle penetration and ability to pass through tissues, the tendency to electrify, twisting ability, elasticity, knot stability and tendency to soak up tissue fluids. The mechanical properties of the threads were investigated using an extension test in Lloyd LRX testing machine. Furthermore, haematological and biochemical analyses of the serum were performed 60 d after the surgery. The obtained results showed very high surgical reliability of the investigated threads with no side effects in any of the experimental animals. The wound healing process was characterised by minimal reaction of the soft tissues. The extension test showed very high mechanical endurance of the investigated threads. Moreover, positive results were obtained after the evaluation of knot stability of the threads. Decreased values of haemoglobin, haematocrit, and daily body weight gain of the animals from the experimental group were observed as negative consequences of the fundectomy.
Zbadano zawartość azotanów(V) i azotanów(III) w racjach pokarmowych dzieci w wieku przedszkolnym. Pożywienie składało się z trzech posiłków pobranych w jednym z łódzkich przedszkoli w okresie od listopada 1998 do stycznia 1999r. Stopień narażenia tymi związkami oszacowano przyjmując dopuszczalną dzienną zawartość azotanów(III) (0,2 mg NaNO2) i azotanów(V) (5 mg KNO3) w przeliczeniu na jednostkę masy ciała, uwzględniając 20 kg jako średnią masę ciała dzieci w wieku 4 - 6 lat. Zawartość azotanów(V) i azotanów(III) oznaczono metodą spektrofotometryczną wykorzystując reakcję barwną azotanów(III) z odczynnikiem Griessa, zgodnie z PN-74/A-82114. Azotany(V) przed oznaczeniem były redukowane do azotanów(III) na kolumnie wypełnionej kadmem. Zawartość azotanów(V) w dietach spożywanych przez dzieci w przedszkolu oscyluje między 55,2 mg KNO3 i 530,8 mg KNO3,. Pobranie azotanów(III) mieści się w zakresie od 0,0 mg NaNO2 do 19,0 mg NaNO2.
The inactivation and sublethal injury of two strains of Listeria innocua (one collection strain and one wild strain isolated from beetroot juice) suspended in beetroot juice and in model solutions, after high hydrostatic pressure (HHP) were investigated. Changes within the population assessed by plating count methods of both L. innocua strains suspended in a buffer pH 4.0 were more noticeable than in the natural beetroot juice environment. In beetroot juice the lethal effect was reported after 1 min of pressure treatment at 400 MPa for the collection strain. In the case of the wild type strain, exposure to the maximal parameters of the compression process (400 MPa, 10 min) decreased the population number below 1 log (CFU/mL) but did not cause complete injury. The collection strain of L. innocua was easier to inactivate in beetroot juice than the strain isolated from this environment. The maximum level of sublethal injury was observed when the cells were suspended in a buffer pH 7.0. Structural damage in cell membranes after HHP processing was observed using a transmission electron microscope (TEM).
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