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Wyświetlanie 16-30 z 1084
Tytuł:
Effects of long-term agricultural land use on soil properties along the Austrian-Hungarian border. Part II. Soil chemical, microbiological and zoological parameters
Autorzy:
Rampazzo, N.
Rajkai, K.
Blum, W.E.H.
Varallyay, G.
Ubleis, T.
Powiązania:
https://bibliotekanauki.pl/articles/25442.pdf
Data publikacji:
1999
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
zoological parameter
Hungarian agricultural soil
agricultural practice
Austrian agricultural soil
chemical parameter
soil property
microbial parameter
soil biology
soil nutrient
Źródło:
International Agrophysics; 1999, 13, 2
0236-8722
Pojawia się w:
International Agrophysics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effects of long-term agricultural land use on soil properties along the Austrian-Hungarian border. Part I. Soil mineralogical, physical and micromorphological parameters
Autorzy:
Rampazzo, N.
Rajkai, K.
Blum, W.E.H.
Varallyay, G.
Ubleis, T.
Powiązania:
https://bibliotekanauki.pl/articles/25710.pdf
Data publikacji:
1999
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
soil structure
soil degradation
physical parameter
mineralogical parameter
agricultural practice
micromorphological parameter
soil property
soil aggregate
water retention
Źródło:
International Agrophysics; 1999, 13, 1
0236-8722
Pojawia się w:
International Agrophysics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Advantage of Bayesian approach to geotechnical designing
Zalety wnioskowania bayesowskiego w projektowaniu geotechnicznym
Autorzy:
Garbulewski, K
Jablonowski, S.
Rabarijoely, S.
Powiązania:
https://bibliotekanauki.pl/articles/81659.pdf
Data publikacji:
2009
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
Tematy:
parameter estimation
Bayesian approach
geotechnical designing
application
geotechnical engineering
geotechnical parameter
Źródło:
Annals of Warsaw University of Life Sciences - SGGW. Land Reclamation; 2009, 41, 2; 83-93
0208-5771
Pojawia się w:
Annals of Warsaw University of Life Sciences - SGGW. Land Reclamation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Opredelenie perekhodnykh i operatornykh induktivnykh parametrov prokhodnogo vnutrennego kolcevogo vikhretokovogo preobrazovatelja v provodjashhchejj trube
Determination of transitional and operational inductive parameters of internal of eddy current of ring transducer in a conductive pipe
Autorzy:
Yatsun, A.
Powiązania:
https://bibliotekanauki.pl/articles/77611.pdf
Data publikacji:
2015
Wydawca:
Komisja Motoryzacji i Energetyki Rolnictwa
Tematy:
pipeline
monitoring
technical state
safety
reliability analysis
physical parameter
mechanical parameter
Źródło:
Motrol. Motoryzacja i Energetyka Rolnictwa; 2015, 17, 4
1730-8658
Pojawia się w:
Motrol. Motoryzacja i Energetyka Rolnictwa
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Long-term cyanobacterial dynamics as related to physicochemical water parameters in a restored urban lake
Autorzy:
Zebek, E.
Powiązania:
https://bibliotekanauki.pl/articles/1189822.pdf
Data publikacji:
2016
Wydawca:
Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Tematy:
Cyanoprokaryota
dynamics
physicochemical parameter
water parameter
urban lake
lake
restoration
nutrient
Opis:
The aim of this study has been to determine the response of cyanobacteria to the lake protection and restoration measures implemented in the littoral zone of an urban lake called Jeziorak Mały. The first investigations were conducted in 1996 and were resumed in 1997-2003, 2005 and 2013, following the installation of a separator and the creation of stone accumulation sites. Long-term changes in phytoplankton cyanobacterial proportions, abundance and biomass were analyzed in relation to environmental conditions at the sites in the littoral zone (S – separator pipes, K – sites with stones and R – sites with macrophytes). Relationships between cyanobacteria and water chemistry variables were analyzed by calculating the Spearman’s rank correlation coefficient, and then with canonical correspondence analysis (RDA). The results provided evidence that water temperature, total nitrogen and iron concentration (S, R), but also PO43- in spring (S,K) were the principal factors affecting cyanobacterial development. There was a significant decrease in the share, abundance and biomass of cyanobacteria coinciding with a decrease in conductivity and PO43- following the onset of lake restoration efforts. Changes in dominant species from the ones typical in hypertrophic lakes to those typically found in eutrophic lakes took place during the research. The modifications indicated a strong initial response of cynaobacteria to the restoration measures, but the situation stabilized in 2013, when cyanobacteria returned to their previous average levels. This suggests that the introduction of lake restortation measures contributed to the lake’s improved water quality and they should be retained for efficient lake management in the future.
Źródło:
Journal of Elementology; 2016, 21, 1; 269-282
1644-2296
Pojawia się w:
Journal of Elementology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Long-term cyanobacterial dynamics as related to physicochemical water parameters in a restored urban lake
Autorzy:
Zebek, E.
Powiązania:
https://bibliotekanauki.pl/articles/16004.pdf
Data publikacji:
2016
Wydawca:
Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Tematy:
Cyanoprokaryota
dynamics
physicochemical parameter
water parameter
urban lake
lake
restoration
nutrient
Opis:
The aim of this study has been to determine the response of cyanobacteria to the lake protection and restoration measures implemented in the littoral zone of an urban lake called Jeziorak Mały. The first investigations were conducted in 1996 and were resumed in 1997-2003, 2005 and 2013, following the installation of a separator and the creation of stone accumulation sites. Long-term changes in phytoplankton cyanobacterial proportions, abundance and biomass were analyzed in relation to environmental conditions at the sites in the littoral zone (S – separator pipes, K – sites with stones and R – sites with macrophytes). Relationships between cyanobacteria and water chemistry variables were analyzed by calculating the Spearman’s rank correlation coefficient, and then with canonical correspondence analysis (RDA). The results provided evidence that water temperature, total nitrogen and iron concentration (S, R), but also PO43- in spring (S,K) were the principal factors affecting cyanobacterial development. There was a significant decrease in the share, abundance and biomass of cyanobacteria coinciding with a decrease in conductivity and PO43- following the onset of lake restoration efforts. Changes in dominant species from the ones typical in hypertrophic lakes to those typically found in eutrophic lakes took place during the research. The modifications indicated a strong initial response of cynaobacteria to the restoration measures, but the situation stabilized in 2013, when cyanobacteria returned to their previous average levels. This suggests that the introduction of lake restortation measures contributed to the lake’s improved water quality and they should be retained for efficient lake management in the future.
Źródło:
Journal of Elementology; 2016, 21, 1
1644-2296
Pojawia się w:
Journal of Elementology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
On the maximum likelihood estimator in the generalized beta regression model
Autorzy:
Rydlewski, J. P.
Mielczarek, D.
Powiązania:
https://bibliotekanauki.pl/articles/255953.pdf
Data publikacji:
2012
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
nonlinear regression
beta distribution
scale parameter
shape parameter
maximum likelihood estimator
Opis:
The subject of this article is to present the beta – regression model, where we assume that one parameter in the model is described as a combination of algebraically independent continuous functions. The proposed beta model is useful when the dependent variable is continuous and restricted to the bounded interval. The parameters are obtained by maximum likelihood estimation. We prove that estimators are consistent and asymptotically normal.
Źródło:
Opuscula Mathematica; 2012, 32, 4; 761-774
1232-9274
2300-6919
Pojawia się w:
Opuscula Mathematica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Study of Physicochemical and Bacteriological Quality of Treated Wastewater by the New Aourir Plant (Southwestern of Morocco) Using Activated Sludge Technology in a Semi-Arid Region
Autorzy:
Hajji, Sara
Ait Alla, Aicha
Noureddine, Slimani
Haddad, Mohamed Ben
Moukrim, Abdellatif
Powiązania:
https://bibliotekanauki.pl/articles/1838277.pdf
Data publikacji:
2021
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
wastewater
Morocco
physicochemical parameter
activated sludge
Aourir
bacteriological parameter
treatment plant
Opis:
In order to use the purified wastewater for the irrigation of a golf course in the Taghazout area (Southwestern of Morocco), this study was conducted to evaluate the physicochemical and bacteriological quality of the treated wastewater in the new Aourir plant (Activated Sludge technology). In order to achieve these objectives, three types of water were analyzed: raw water (RW), biologically treated water (BTW) and water treated by ultraviolet radiation (UV-TW). The physicochemical parameters analyzed were Temperature, pH, Electrical Conductivity (EC), Dissolved Oxygen (DO), Chemical Oxygen Demand (COD), five-day Biological Oxygen Demand (BOD5), Total Suspended Solids (SS), Nitrate (NO3), and Orthophosphates (PO4). Otherwise, the analyzed biological parameters are Total Coliforms (TC), Fecal Coliforms (FC), Escherichia coli (E. coli), and Fecal Streptococci (FS). The physicochemical parameters showed that temperature is always lower than 30°C, the pH is close to neutrality and a strong fluctuation of the high electrical conductivity (2700 μS/cm) occurs in UV-TW. At all stages of wastewater treatment, COD, BOD5, SS, NO3 and PO4 were below the limit values recommended by Moroccan standards. The bacteriological results showed a high level of bacterial contamination in RW and BTW, but in UV-TW the loads did not exceed 3 log10. The average loads of TC, FC, E. coli and FC in UV-TW were 2.13, 1.67, 1.77, and 2 (log10 CFU/100ml) respectively. Activated sludge treatment combined with UV has demonstrated sufficient quality to reuse treated water in irrigation; however, the UV treatment requires control to avoid any effect on the microbiological and physicochemical quality of green spaces and groundwater.
Źródło:
Journal of Ecological Engineering; 2021, 22, 6; 83-98
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of short-lasting undernutrition of gilts during peri-conceptional period on biochemical and haematological parameters in blood plasma during peri-implantation period
Autorzy:
Franczak, A.
Zmijewska, A.
Zglejc, K.
Dziekonski, M.
Waszkiewicz, E.
Okrasa, S.
Sobotka, W.
Kotwica, G.
Powiązania:
https://bibliotekanauki.pl/articles/1189775.pdf
Data publikacji:
2016
Wydawca:
Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Tematy:
undernutrition
gilt
biochemical parameter
hematological parameter
blood plasma
early pregnancy
human nutrition
mother
Opis:
In gilts, the period of early pregnancy occurring from the time of fertilization to the beginning of implantation is sensitive to any environmental disruptions, including an unbalanced diet of a future mother. Previously, we found that due to the undernutrition in gilts during this period, the endocrine intrauterine microenvironment and DNA methylation in the uterus have been changed. These distortions may diminish the success of pregnancy. In this study we focused on the influence of a restricted diet used in gilts during the first days of pregnancy on their biochemical and haematological parameters in peripheral blood. The applied restrictive diet vs. normal diet covered only 70% of the nutritional demands of early pregnant gilts. Normal (n = 4 gilts) or restrictive (n = 5 gilts) diets were used from the day of the first signs of the estrus until day 9 of pregnancy and biochemical and haematological parameters in blood plasma were determined during peri-implantation period, e.g. on days 15 to16 of pregnancy. In restrictive vs. normal fed gilts significantly lower plasma phosphorus, calcium and total cholesterol as well as the tendency to increasing concentrations of triglicerydes and asparate aminotranserase were found. Haematological parameters did not differ between the studied gilts. Thus, it seems that the availability of nutritional factors became suboptimal in restrictively fed early pregnant gilts. Even short-lasting undernutrition of females during the peri-conceptional period may cause a disruption of biochemical homeostasis during the peri-implantation period and probably affect the success of pregnancy.
Źródło:
Journal of Elementology; 2016, 21, 1; 33-42
1644-2296
Pojawia się w:
Journal of Elementology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Particle-inflow-gun-mediated genetic transformation of buffel grass [Cenchrus ciliaris L.]: optimizing biological and physical parameters
Autorzy:
Bhat, V
Dalton, S.J.
Kumar, S.
Bhat, B.V.
Gupta, M.G.
Morris, P.
Powiązania:
https://bibliotekanauki.pl/articles/2048302.pdf
Data publikacji:
2001
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
buffel grass
promoter
genetic transformation
physical parameter
Cenchrus ciliaris
biological parameter
grass
biotechnology
Źródło:
Journal of Applied Genetics; 2001, 42, 4; 405-412
1234-1983
Pojawia się w:
Journal of Applied Genetics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Spatio-temporal variations in hydro-physical and -chemical parameters during a major upwelling event off the Southern coast of the Gulf of Finland in summer 2006
Autorzy:
Suursaar, U.
Aps, R.
Powiązania:
https://bibliotekanauki.pl/articles/48525.pdf
Data publikacji:
2007
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
satellite image
Finland Gulf
upwelling
vertical flux
Baltic Sea
hydrophysical parameter
hydrochemical parameter
Opis:
The objective of the paper is to document and examine the major upwelling event that occurred along the northern coast of Estonia in August 2006. With a horizontal extension of 360 km, the event was caused by persistent easterlies and was noticed by a large number of holidaymakers, as it reduced the temperature of the coastal sea to a chilly 5–10◦C for about a month. In situ measurements from an RDCP current profiler revealed an along-wind coastal jet of up to 60 cm s−1 and a weak near-bottom countercurrent. The depths of the pycnocline and nutricline rose. The maximum drop in water temperature was 16◦C, that of salinity was 3.6 PSU. Analysis of satellite images confirmed the large extension and the prominence of the event.
Źródło:
Oceanologia; 2007, 49, 2
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of short-lasting undernutrition of gilts during peri-conceptional period on biochemical and haematological parameters in blood plasma during peri-implantation period
Autorzy:
Franczak, A.
Zmijewska, A.
Zglejc, K.
Dziekonski, M.
Waszkiewicz, E.
Okrasa, S.
Sobotka, W.
Kotwica, G.
Powiązania:
https://bibliotekanauki.pl/articles/14925.pdf
Data publikacji:
2016
Wydawca:
Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Tematy:
undernutrition
gilt
biochemical parameter
hematological parameter
blood plasma
early pregnancy
human nutrition
mother
Opis:
In gilts, the period of early pregnancy occurring from the time of fertilization to the beginning of implantation is sensitive to any environmental disruptions, including an unbalanced diet of a future mother. Previously, we found that due to the undernutrition in gilts during this period, the endocrine intrauterine microenvironment and DNA methylation in the uterus have been changed. These distortions may diminish the success of pregnancy. In this study we focused on the influence of a restricted diet used in gilts during the first days of pregnancy on their biochemical and haematological parameters in peripheral blood. The applied restrictive diet vs. normal diet covered only 70% of the nutritional demands of early pregnant gilts. Normal (n = 4 gilts) or restrictive (n = 5 gilts) diets were used from the day of the first signs of the estrus until day 9 of pregnancy and biochemical and haematological parameters in blood plasma were determined during peri-implantation period, e.g. on days 15 to16 of pregnancy. In restrictive vs. normal fed gilts significantly lower plasma phosphorus, calcium and total cholesterol as well as the tendency to increasing concentrations of triglicerydes and asparate aminotranserase were found. Haematological parameters did not differ between the studied gilts. Thus, it seems that the availability of nutritional factors became suboptimal in restrictively fed early pregnant gilts. Even short-lasting undernutrition of females during the peri-conceptional period may cause a disruption of biochemical homeostasis during the peri-implantation period and probably affect the success of pregnancy.
Źródło:
Journal of Elementology; 2016, 21, 1
1644-2296
Pojawia się w:
Journal of Elementology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of antioxidant supplemented-diet for blue fox on chosen reproductive and performance parameters
Wpływ dodatku przeciwutleniacza do karmy lisów polarnych na parametry rozrodu i produkcyjności
Autorzy:
Likos-Grzesiak, B.
Martyna, J.
Wnuk, W.
Saba, L.
Nowakowicz-Dębek, B.
Ondrašovič, M.
Powiązania:
https://bibliotekanauki.pl/articles/2197576.pdf
Data publikacji:
2008
Wydawca:
Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
Tematy:
antioxidant effect
diet supplementation
animal feeding
blue fox
fox
reproductive parameter
performance parameter
Źródło:
Annales Universitatis Mariae Curie-Skłodowska. Sectio EE: Zootechnica; 2008, 26, 3; 1-8
0239-4243
2083-7399
Pojawia się w:
Annales Universitatis Mariae Curie-Skłodowska. Sectio EE: Zootechnica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Identification of Water Quality in Wet and Intermediate Zones in Selected, Sri Lanca: An Analytical Review
Autorzy:
Fowzul Ameer, M. L.
Powiązania:
https://bibliotekanauki.pl/articles/1111952.pdf
Data publikacji:
2018
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Parameter
agrochemical
concentration
groundwater
Opis:
This study is based on the analysis of drinking water parameters in selected wet and intermediate zones of Sri Lanka. Unsafe drinking water is one of the main concerns in developing countries. In Sri Lanka, the drinking water quality is a major concern in many places. A series of studies have been conducted in intensive agricultural production areas, namely, Jaffna, Vavuniya, Anuradhapura, Kurunagala and Hambantota. This represents a longitudinal section of Sri Lanka, and the study was done to understand the groundwater quality over the years of 2004 to 2009. Water from selected areas were sampled throughout the villages of this area mostly from open wells and tube wells. The samples were analysed for their chemical quality in order to identify water quality as compared with the Sri Lankan Drinking water standard. For this study, Sodium (Na+), Calcium (Ca2+), Magnesium (Mg2+), Chloride (Clˉ), Sulphate (SO42ˉ) and Nitrate (NO3ˉ) were analysed. Accordingly, in the Dry Zone, the concentration of the Ca, Mg and Cl are higher than in the Wet Zones. Indeed, some sampling wells in the Dry Zones have extreme concentration of Ca (more than 1000 mg/l) and this is a major threat to the consumers for drinking purposes. In total, of 103 wells, 6 percent of the sampling wells were identified as contaminated, whereas in total, of 96 wells in the Dry Zone, 64 percent of the sampling wells were found to be contaminated due to chemical concentration. We found that rural areas are facing agrochemical-leaching problems into the groundwater, whereas urban areas are facing industrial and biological materials seeping into the ground and surface water bodies.
Źródło:
World News of Natural Sciences; 2018, 19; 19-31
2543-5426
Pojawia się w:
World News of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A brief analysis of North Sea physics
Autorzy:
Sundermann, J.
Pohlmann, T.
Powiązania:
https://bibliotekanauki.pl/articles/48534.pdf
Data publikacji:
2011
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
biological parameter
chemical parameter
circulation
freshwater budget
marine ecosystem
marine physics
North Sea
physical parameter
remote sensing
storm
tide
Opis:
The current state of understanding the North Sea’s physical system is presented. First, basic phenomena like astronomical tides and general circulation will be described and analysed with respect to their physical nature and respective interactions. There will be special focus on fundamental dynamic balances. Next, some specific topics relevant to the marine ecosystem, the economy and society will be considered: among them, spreading and transport processes, the fresh water budget, the heat budget and storm surges. A separate section is dedicated to the North Sea of Tomorrow, i.e. the prospective variations of the physical environment resulting from global changes in future decades. The statements are based on the long experience of the authors and their groups and include findings that are little known if at all. The review finishes with a list of open questions and the corresponding research demands.
Źródło:
Oceanologia; 2011, 53, 3
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 16-30 z 1084

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