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Dynamika zmian liczby harwesterów w Polsce oraz czynniki determinujące ich występowanie

100%
Mederski P. S., Karaszewski Z., Rosinska M., Bembenek M.
Sylwan
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2016
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tom 160
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nr 10
In recent years, rapid changes related to forest operations have been observed in the forestry sector in Poland. A growing number of harvesters, an increased volume of harvested timber and a larger proportion of broadleaved species are considered the most important. The objective of this paper was to recognise the dynamics of harvester fleet change in Poland. In particular, there was an emphasis on finding out: 1) the total number of harvesters currently used in Poland (with respect to regions), 2) where and what type of machines were bought, and 3) which main factors influence the occurrence of these machines. In January 2014, a survey was sent to all forest districts. Questions related to harvesters and relevant for this paper included information about: 1) the number of harvesters in use, 2) the serial number of each harvester, 3) place of purchase (within the country or abroad), 4) status of the machine when bought (new or used), and 5) the forest district, in which an open tender was won for 2014. To avoid double counting the same harvester working in two or more forest districts, the serial number of each machine was used for identification. There were 368 harvesters reported in the survey in early 2014, although at the end of 2015 this number rose to 530 machines. The Central−West, North−West and North of Poland had the highest number of harvesters. Most of the harvesters were bought as used, though there may be a growing trend towards the purchase of new machines. A strong correlation was observed between the number of machines used in a region and the total area of lowland coniferous sites and forests, as well as the volume of harvested merchantable softwood. Currently, private forests and broadleaved species are the main factors limiting the application of harvesters in Poland.
2

High seroprevalence of CMV among women of childbearing age implicates high burden of congenital cytomegalovirus infection in Poland

88%
Sennicka J., Dunal-Szczepaniak M., Trzcinska A., Godzik P., Rosinska M.
Polish Journal of Microbiology
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2016
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tom 65
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nr 4
Cytomegaloviruses are common worldwide, with variable frequency of infections. The infection in pregnancy may lead to pregnancy loss or serious sequelae for the child. To understand the risk posed by CMV in Poland we conducted cross-sectional study on women aged 15–49 basing on existing serum bank. Age dependent CMV incidence, the rates of congenital infection and sequelae were modelled from sero-prevalence, literature and demographic data. The overall anti-CMV IgG prevalence was 81.9% increasing from 74.3% in < 30 years old to 94.3% in subjects 45+ years old. The lowest incidence was estimated at the age of 15 and the highest at the age 34 (3.8 and 8.95 respectively/100 women/year). The estimated rate of cCMV varies from 22.4 to 37.2 per 1000 live birth depending on the assumptions made. The proportion of cases due to secondary infection ranged from 34.8% to 49.9% accordingly.
3

Porównanie oceny stanu emocjonalnego studentów Państwowej Szkoły Wyższej w Białej Podlaskiej i Tarnopolskiego Wyższego Uniwersytetu Medycznego

88%
Oliynyk O., Lewicki K., Wawryszuk E., Rosinska M., Sienkiewicz M.
Człowiek i Zdrowie
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2013
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tom 07
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nr 2
The article presents a state of physical and mental health components of quality of life of university students. The results indicate that the physical component of student’s health is within 51.12, psychological - 44,27 points. The level of physical and mental health components of quality of student’s life in Ukraine, Belarus and Russia do not differ significantly. It is statistically proved that correlation relationship between role-functioning caused by physical condition and role functioning, emotional state caused by the students’ overall health and vitality, general health and mental health, social functioning and role functioning caused by emotional state, social functioning and mental health.
4
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Density and mechanical properties of Scots pine (Pinus sylvestris L.) wood from a seedling seed orchard

76%
Mederski P. S., Bembenek M., Karaszewski Z., Giefing D. F., Sulima-Olejniczak E., Rosinska M., Lacka A.
Drewno. Prace Naukowe. Doniesienia. Komunikaty
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2015
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tom 58
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nr 195
Seedling seed orchard (SSO) growing conditions are different to those in the forest. Trees grow in wide spacing with more access to sunlight and competition between trees is less intense causing larger annual rings and limited height growth. The objective of this research was to: 1) determine the density and mechanical properties of Scots pine (Pinus sylvestris L.) wood grown in an SSO and 2) suggest the most suitable use of this wood. Five trees (25-year-old) were selected using the Urich II method. Final samples (from the height of dbh) were cut from pith to bark, in the four cardinal directions. From all five trees, 159 samples were used to determine: 1) the wood density, 2) the compressive strength parallel to the grain, 3) the modulus of rupture, and 4) the strength quality coefficient. For each property the following mean values were obtained: 327 kg m-3, 32 MPa, 59 MPa and 0.10, respectively. The density did not depend on the dbh or mean width of annual ring. At the same time, the mechanical properties depended strongly on the wood density. In all cases, the wood property values of the Scots pine from the SSO were lower in comparison with those published for Scots pine grown in regular stand conditions. Therefore, pine wood from SSOs should be used in the paper industry.
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