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Among domestic animals, cattle and horses kept on pasture and fed with hay and straw are exposed most prominently to environmental pollution. Determination of the status of heavy metals in bodies of horses is important for two reasons. Firstly, it helps to assess the level of environmental contamination. Secondly, heavy metals can have considerable influence on animals living outdoors. The aim of the study has been to verify whether the level of Cr, Mn, Cu, Cd, Pb and Ni in the coat hair and cornified structures of hooves may differ between horses maintained alternately in a stable and on pasture and living outdoors all year long, with Polish Koniks from Mazury (the Masurian Lake District) taken as an example. Possible effects of the feeding season and age of horses were considered. In total, 35 Polish Konik horses were examined, either kept in a stable-pasture system in Popielno or outdoors in Wojnowo. Sixty-two samples of summer and winter coat hair, 28 samples of hoof horn, as well as 10 samples of pasture plants and water were analyzed. The data were elaborated with the use multi-factor analysis of variance, T-Tukey- Kramer test and Pearson’s correlation. The results show that Polish Konik horses bred in Mazury have a low heavy metal concentration in the coat hair and hoof horn. The stable-pasture and outdoor maintenance systems hardly differentiate the element content, whereas the winter feeding results in an elevated concentration of the elements in the hair. Yearlings show higher Mn and Cd content than mares and foals at foot. The dam’s impact on the heavy metal concentration in the hair and hoof horn in their foals is usually non-significant.
The aim of the study is to present selected issues relating to the concept of CSR in the opinions of small and medium enterprises engaged in economic activities in rural areas. The concept of corporate social responsibility, functioning under the name of CSR, which is the responsibility of the business, is becoming more popular not only in academia, but also business. Research into business opinions on the concept of CSR was carried out in the second half of 2013 and included 174 micro (0-9 employees), small (10-49 employees) and medium (50-249 employees) agribusinesses engaged in business activities in rural areas of Warmia and Mazury. Studies have shown that nearly 30% of traders noted that the principles of social responsibility are reflected in financial results – they saw benefits such as higher quality products, lower costs and associated savings such as in water or energy.
This paper presents the results of studies on the content of polychlorinated biphenyls (PCBs) in the fat of wild boars and roe-deer shot in the region of Warmia and Mazuria during the 1993 hunting season. PCB levels in the adipose tissue of these animals were relatiely low. The average PCB content in wild boar fat was 21.8 μg/kg, and in roe-deer 9.7 μg/kg. PCB content was below 15 μg/kg in the majority of wild boar fat samples, and below 7 μg/kg in the case of roe-deer.
This paper presents the results of a study on the 137Cs content in liver, kidneys and biceps muscles of red deer (Ceravus elaphus) obtained in Warmia and Mazury in 2000/2001. 93 samples from 51 red deer shot in the communes of Reszel, Lelkowo, Olecko, Kętrzyn, Pisz, Ruciane Nida, Ryn, Szczytno, Orzysz, Rozogi, and Olsztynek were analyzed. Concentrations of radiocesium in several samples of muscle tissue of red deer obtained from the European part of Russia was determined for reference. In Warmia and Mazury the average concentrations of 137Cs were 20.48 Bq/kg in muscle, 13.26 Bq/kg in liver, and 18.74 Bq/kg in kidneys. As such, these were very low figures. It was only in a few samples of red deer tissues obtained at two locations (Olsztynek, Zaporowo) that the levels of this radionuclide were elevated compared to those from other sites. The least radioactive were samples collected from carcasses of calves, in contrast to those taken from bucks, which contained the highest levels of radiocesium. A wide range of differences in the determinations was obtained. For example, concentrations of radiocesium in muscle tissues varied from 1.91 to 28.55 Bq/kg for calves, 0.91 to 79.20 for does and 2.69 to 137.20 Bq/kg for bulls. The 137Cs levels in red deer’s potential foodstuffs also varied from region to region, although it was to a certain extent positively correlated with the amounts of radiocesium determined in the red deer carcasses obtained in these areas.
The study reports on the amount of lead and cadmium in selected samples of vegetables obtained directly from Warmian-Masurian producers, and commercial samples from a deep-frozen food producer. Concentration of analysed compounds after dry mineralisation of biological material and organic phase extraction (APDC/MBIK) has been determined using the atomic absorption spectrophotometry (AAS) in a UNICAM 939 AA apparatus. There has been significantly high concentration of lead in the samples of cauliflower (0.95 mg/kg) and carrot (0.98 mg/kg). In commercial samples the difference was statistically significant. Whereas significantly higher concentration of cadmium has been detected in spinach both in producer and commercial samples (0.092 and 0.086 mg/kg respectively). Generally, concentration of metals determined was similar in vegetable samples obtained from the suppliers and in commercial ones. The researched vegetables were characterised by lower concentration of particular compounds compared to valid legal regulations.
This paper presents the results of a study on the content of Cu, Zn, Pb and Cd in livers and breast muscles of mallards obtained in Warmia and Mazury in 1999-2000. Samples from 32 mallards hunted in Łężany, Zembrze, Szestno and Nidzica, as well as samples from 7 pheasants and 6 mallards from the area of Śląsk were analyzed. Concentration of all the four metals was higher in the liver than in breast muscles. Mean contents of copper in livers of juvenile and adult mallards from Warmia and Mazury were similar (6.567 and 8.632 mg/kg w.w.). Levels of zinc were approximately the same in both age groups (23.911 mg/kg w.w. in young birds and 25.418 mg/kg w.w. in adults). As regards lead, older mallards from Warmia and Mazury had twice as much of the metal in the liver (0.417 mg/kg w.w.). The content of Pb in the liver was similar in both age groups of the birds from Śląsk. The differences in the concentration of cadmium in the mallards from Warmia and Mazury were smaller. Cd in the amount of 0.128 mg/kg m.m. was found in the young mallards and 0.171 mg/kg m.m. in the adult mallards. The birds from the area of Śląsk contained much higher concentrations of Cd in their tissues, over 1 mg/kg m.m. in the liver and over 0.200 mg/kg m.m. in the breast muscles.
This paper presents the results of studies on the levels of organochlorine pesticides (HCH, DDT, DDE, DDD) and polychlorinated biphenyls (PCBs) in the adipose tissue of geese and turkeys in Varmia and Mazuria. The birds were slaughtered in summer 1996. Average level of JDDT residues in adipose fat of geese was 89.3 μg/kg and of y-HCH 0.8 μg/kg, while turkey fat contained 13.6 μg/kg and 2.5 μg/kg, respectively. Average residues of PCBs in goose adipose fat amounted to 5.1 μg/kg, and in turkey fat - to 4.9 μg/kg. DDT dominated in both, goose and turkey fat, DDE percentage was twice higher in turkey fat than in geese, while DDD levels were a little lower in turkeys than in geese. These results add to the inventory of residues of these xenobiotics in the tissues of domestic birds bred in Northeastern Poland.
This paper includes the results of research on indicatory microorganisms of contamination (TVC 20°C, TVC 37°C) and sanitary (TC, FC, FS, Clostridium perfringens) states in water-bearing formations (without isolation from the surface) of the Omulewski aquifer in Mazuria, Poland, conducted from 1988 to 1993. Less bacteriological contamination was characteristic of water from wells in a partly (Janowo) or entirely (Sedańsk, Narty) forested area, at a depth of 38-40 m. Greater contamination was discovered in the area of large cattle and hog farms (Dzierzki, Wesołowo, Wielbark, Przezdzięk, Baranowo, Wyżegi). In this area less bacteriological contamination occurred in water from deeper wells (to 64 m), whereas water contamination from shallow boreholes (6.8-23.5 m) was higher. Most well-water samples taken from the forested area fulfilled sanitary and bacteriological requirements for drinking water. The percentage of well-water samples which would fulfill sanitary and bacteriological requirements was smaller for farming areas. The most severe contamination was discovered in water samples from shallow boreholes at a cattle farm in Wesołowo.
This paper presents the results of studies on the content of organochlorine pesticides and poly- chlorinated biphenyls (PCBs) in muscle tissue of pikeperch caught in some lakes (Wadąg, Długie, Jeziorak) of Varmia and Mazuria, North-East Poland. Levels of DDT, DDD, DDE, y-HCH and PCBs were determined with gas chromatography. The results revealed relatively low content of these substances in pikeperch meat, although their levels differed depending on the place where the fish were caught. Average level of I DDT and PCBs residues was the highest in the muscles of fish caught in Długie Lake, amounting respectively to 1448 (μg/kg and 700 μg/kg of the extracted fat. The highest average concentration of y-HCH (83 (μg/kg of fat) was observed in pikeperch caught in Jeziorak Lake.
W opracowaniu niniejszym omówiono termikę badanych terenów na podstawie pomiarów elementów meteorologicznych prowadzonych przez stację meteorologiczną w Baranowie, uwzględniając równocześnie różnice występujące w stosunku do opracowania warunków klimatycznych w latach 1881-1960. Analizowany okres badawczy charakteryzował się temperaturami wyższymi od średnich wspomnianego 80-lecia. Przedstawiono tu również przebieg nietypowych dla tych terenów zim od 1987/1988 do 1990/1991.
Background. Knowledge on proper nutrition favours the creation of pro-healthy nutritional behaviours of people. Studies related to the nutritional knowledge of adults, diet quality and incidence of breast or lung cancers are limited. Objective. Analysis of the relationship between the level of nutritional knowledge, diet quality and risk of breast cancer in women or lung cancer in men from the Warmia and Mazury region in Poland. Material and methods. The study was carried out in 202 subjects aged 23-80 years, including 107 women (17 cases of breast cancer) and 95 men (54 cases of lung cancer) from the Warmia and Mazury region in Poland. Nutritional knowledge was evaluated with the Questionnaire of Eating Behaviours (QEB), including 25 statements. Based on the frequency of the consumption of 16 food items, two diet quality indices were created: the pro-Healthy-Diet-Index-8 (pHDI-8) and the non-Healthy-Diet-Index-8 (nHDI-8). The values of pHDI-8 and nHDI-8 were calculated on the basis of the sum of the daily frequency of consumption of the selected food items and expressed as times/day. The Odds Ratio (OR) of both breast cancer or lung cancer in relation to the level of nutritional knowledge was calculated based on a logistic regression analysis. Results. The incidence of breast or lung cancer in the bottom, middle and upper tertile of nutritional knowledge was 57.6%, 32.6% and 15.8%, respectively. As nutritional knowledge grew in the subsequent tertiles, pHDI-8 was on the increase (2.63 vs. 3.78 vs. 4.22 times/day) and n-HDI-8 was on the decrease (1.32 vs. 1.21 vs. 0.94 times/day). In the upper tertile of nutritional knowledge, the Odds Ratio for the incidence of breast or lung cancers varied from 0.06 (95% CI: 0.02; 0.17; p<0.05, with adjustment for cancer type and age) to 0.17 (95% CI: 0.04; 0.69; p<0.05, with adjustment for age and sex) when compared to the bottom tertile (OR=1.00). In the middle tertile of nutritional knowledge, the Odds Ratio of both cancers varied from 0.27 (95% CI: 0.12; 0.62, p<0.05, with adjustment for cancer type and age) to 0.35 (95% CI: 0.18; 0.71, p<0.05, variables without adjustment) when compared to the bottom tertile. Conclusions. A higher level of nutritional knowledge was associated with the higher quality of a pro-healthy diet and lower risk of breast cancer in women or lung cancer in men. In contrast, a lower level of nutritional knowledge was associated with a lower diet quality and a higher risk of both types of cancers.
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