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Tytuł:
Wpływ preparatu białkowo-ksantofilowego PX z lucerny (Medicago sativa L.) na aktywność wybranych enzymów w komórkach wątroby tuczników
The effect of protein-xanthophyll concentrate (PX) from alfalfa (Medicago sativa L.) on the activity of selected enzymes in the liver cells of fattening pigs
Autorzy:
Abramowicz, K.
Krauze, M.
Grela, E.R.
Powiązania:
https://bibliotekanauki.pl/articles/843823.pdf
Data publikacji:
2017
Wydawca:
Polskie Towarzystwo Zootechniczne
Tematy:
trzoda chlewna
zywienie zwierzat
dodatki paszowe
lucerna
koncentrat bialkowo-ksantofilowy
watroba
enzymy
dehydrogenaza mleczanowa
dehydrogenaza jablczanowa
dehydrogenaza bursztynianowa
hydrolaza glukozo-6-fosforanowa
aktywnosc enzymatyczna
Opis:
W dostępnej literaturze krajowej i zagranicznej prezentowane są nieliczne doniesienia na temat aktywności enzymów wskaźnikowych, zwłaszcza markerowych, charakteryzujących pracę konkretnych organelli komórkowych. Ubogie są również informacje na temat zmian aktywności enzymów, jakie zachodzą pod wpływem żywieniowych czynników doświadczalnych. W doświadczeniu założono, że koncentrat białkowo-ksantofilowy PX z lucerny pozytywnie wpłynie na metabolizm, czego efektem będzie poprawa wskaźników produkcyjnych u tuczników. Celem badań było zatem sprawdzenie możliwości wykorzystania niestosowanych dotąd enzymów w ocenie poprawności zachodzących procesów biochemicznych po podaniu PX. Oceniano aktywność enzymów związanych z kluczowymi przemianami biochemicznymi zachodzącymi w komórce, co pozwala na ocenę poprawności zachodzących procesów, jak i reakcji ustroju na czynniki zewnętrzne. Doświadczenie przeprowadzono na 288 tucznikach (loszkach i wieprzkach) mieszańcach (wbp x Neckar), podzielonych na 4 grupy, zróżnicowane pod względem dawki i okresu podawania koncentratu białkowo-ksantofilowego PX z lucerny (Medicago sativa L.). Koncentrat z lucerny wprowadzono do mieszanki paszowej w miejsce poekstrakcyjnej śruty sojowej. Analizowano aktywność wybranych enzymów markerowych: dehydrogenazy mleczanowej (LDH), jabłczanowej (MDH), bursztynianowej (SDH) oraz hydrolazy glukozo-6-fosforanowej (G6PC). Wykazano obniżenie aktywności analizowanych enzymów w komórkach wątroby u zwierząt otrzymujących dodatek koncentratu PX w porównaniu do zwierząt z grupy kontrolnej, co sugeruje korzystny wpływ zastosowanego preparatu na przemiany metaboliczne u badanych zwierząt. Wyniki doświadczenia potwierdzają celowość stosowania w żywieniu świń koncentratu białkowo-ksantofilowego PX z lucerny, zwłaszcza w dawce 3% podawanej w sposób ciągły.
The available Polish and foreign literature contains few reports on the activity of indicator enzymes, especially marker enzymes, which characterize the work of specific cell organelles. Information on enzyme changes induced by experimental dietary factors is also scarce. We postulated that proteinxanthophyll PX alfalfa concentrate would have a positive effect on metabolism in fattening pigs, resulting in improved performance parameters. Therefore the aim of the study was to test the possibility of using enzymes that have not previously been used to assess the biochemical processes taking place following administration of PX. We evaluated the activity of enzymes associated with key biological transformations taking place in the cell, as this makes it possible to assess whether these processes are proceeding normally and to evaluate the response of the body to external factors. The experiment was conducted on 288 finishers (gilts and barrows), all of which were crossbreds (Polish Large White x Neckar), divided into 4 groups according to the dosage and duration of administration of proteinxanthophyll PX concentrate from alfalfa (Medicago sativa L.). The alfalfa concentrate was introduced to the compound feed in place of soybean extraction meal. We analysed the activity of selected marker enzymes: lactate dehydrogenase (LDH), malate dehydrogenase (MDH), succinate hydrolase (SDH), and glucose-6-phosphate hydrolase (G6PC). We found a decrease in the activity of the enzymes in the liver cells of the pigs receiving the PX concentrate as compared to the control, which suggests that the product had a favourable effect on their metabolism. The results confirm the benefit of using proteinxanthophyll PX in pig feed, particularly at a continuous dose of 3%.
Źródło:
Roczniki Naukowe Polskiego Towarzystwa Zootechnicznego; 2017, 13, 2
1733-7305
Pojawia się w:
Roczniki Naukowe Polskiego Towarzystwa Zootechnicznego
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Magnetic Properties of the RCoSn (R=Tb-Er) and RRhGe (R=Ce, Nd) Compounds
Autorzy:
Bażela, W.
Leciejewicz, J.
Małetka, K.
Szytuła, A.
Zygmunt, A.
Powiązania:
https://bibliotekanauki.pl/articles/1931331.pdf
Data publikacji:
1994-05
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
75.25.+z
Opis:
Magnetic properties of orthorhombic RCoSn (R = Tb-Er) and RRhGe (R = Ce,Nd) (of the TiNiSi-type of crystal structure), were studied by magnetometric and neutron diffraction methods. All RTX compounds order antiferromagnetically at low temperatures. The magnetic structure of TbCoSn and HoCoSn is sine-wave-modulated with the wave vectors k$\text{}_{1}$ = (0, 0.25, 0.11) and k$\text{}_{2}$ = (0, 0.333, 0), respectively. The magnetic structures of CeRhGe and NdRhGe compounds are collinear (C mode). Magnetic moments of 1.4(2) and 2.0(2) μ$\text{}_{B}$ localized respectively on Ce and Nd ions, are aligned along the a-axis.
Źródło:
Acta Physica Polonica A; 1994, 85, 5; 859-862
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of humic-plant feed preparations on biochemical blood parameters of laying hens in deep litter housing system
Autorzy:
Bubel, F.
Dobrzanski, Z.
Gawel, A.
Pogoda-Sewerniak, K.
Grela, E.R.
Powiązania:
https://bibliotekanauki.pl/articles/30300.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Opis:
An influence of various humic-plant feed additives based on some herbs (nettle, chamomile, yarrow, perforatum), lucerne and humic materials on biochemical indices of Lohmann Brown (LB) layers blood plasma was estimated. Hens were housed in deep litter system, 20 birds in a group. Four groups were formed: control (C - standard feeding), and experimental, supplemented with preparations: E-1 herbal-humic, E-2 humic-herbal and E-3 - humic-lucerne. Hens were placed in the pens on the 16th week of life, addition of preparations with standard food mixture started at the 22nd wk and lasted until 66th wk of life. Blood for analyses was collected four times in the following periods: 27, 37, 54 and 65th wk of life. The applied humic-plant preparations to a limited degree affected the values of examined biochemical parameters in serum: total protein (TP), albumins (Albs), glucose (Glu), urea, triacylglycerols (TAG), total cholesterol (TCh), alanine aminotransferase (ALT), aspartate aminot-ransferase (AST) and alkaline phosphatase (ALP). It is difficult to determine based on these study, which preparation is one the most active biologically, however is seems that humic-lucerne preparation affected the examined blood parameters to the highest degree. The reference values ranges in hens blood serum LB hens were proposed for: TP (43-65 g/l), Albs (15-22 g/l), urea (0.5-1.2 mmol/l), Glu 10-15 mmol/l), TCh (2.2-4.5 mmol/l), TAG (10-24 mmol/l), AST (4-12 U/l), ALT (150-280 mmol/l) and ALP (190-350 U/l).
Źródło:
Polish Journal of Veterinary Sciences; 2015, 18, 1
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Economic Constraints on Maritime Training and Education in Turkey
Autorzy:
Cicek, K.
Er, I. D.
Powiązania:
https://bibliotekanauki.pl/articles/116023.pdf
Data publikacji:
2008
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
Maritime Education and Training (MET)
MET System in Turkey
Economic Constraints
MET Facilities
Graduates Quantity
MET Costs
Opis:
The quality improvement of the Turkish Maritime Education and Training (MET) system is a relevant political and scientific issue which strongly impacts the competitiveness of the shipping sector in Turkiye. However, MET is quite an expensive Education and Training (ET) system since it requires high investments and incurs high running costs. The existing situation enforces the training system to be able to execute under the desired level of sector expectations in terms of graduates quantity. This study mainly focuses on the investigation of the economic needs of MET facilities. And some of the relevant recommenda-tions are drawn up to improve the efficiency of current MET system. In this respect, the proposed items basically refer to the need of concentrating and integrating resources in order to exploit some degree of economies and pursuing quality in MET.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2008, 2, 2; 193-196
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Photoactivation Analysis of Mineral Trioxide Aggregate: Preliminary Results
Autorzy:
Eke, C.
Er, K.
Segebade, C.
Boztosun, I.
Powiązania:
https://bibliotekanauki.pl/articles/1031466.pdf
Data publikacji:
2017-09
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
25.20.-x
29.20.Ej
Opis:
The purpose of this study is to qualitatively analyse the elemental components of a mineral trioxide aggregate material using photoactivation. The material was irradiated for two hours using bremsstrahlung photons with an end-point energy of 18 MeV from a clinical electron linear accelerator. After irradiation the gamma-ray emission of the sample was counted by gamma spectrometry using a high-purity germanium (HPGe) detector. The gamma-ray spectra were analyzed by computer software. Major and trace elements were detected.
Źródło:
Acta Physica Polonica A; 2017, 132, 3; 869-871
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A Study of Importance of Solar Calculations for "Two Colored Rainbow System" in Istanbul
Autorzy:
Er, Z.
Powiązania:
https://bibliotekanauki.pl/articles/1402524.pdf
Data publikacji:
2015-08
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
96.60.Ub
96.60.Q
89.60.-k
89.30.Cc
Opis:
The sun radiation is the largest renewable energy source on the planet which can be used in technology by means of thermal, photovoltaic and concentrated solar power systems. In this study, two types of solar collectors, called the "Two Colored Rainbow System", were used as a source for water heating at the Faculty of Science and Letters, at Istanbul Technical University. The performance of solar water heating system was experimentally investigated. In the experimental study, the temperature of hot water storage tank versus time of the day was investigated. The average daily solar radiation at a location is often sufficient for a basic system analysis. The radiation of sun varies according to the location, date, time and conditions of climate. The change of sun radiation was computed using a determined set of parameters. This study was aimed to offer optimization of design parameters taking into account possible interferences during the operation of the system. Additionally, hourly solar radiation on tilted surfaces is measured in Istanbul. Data of solar radiation intensity were also collected using a standard solarimeter (pyrometer) via a data logger.
Źródło:
Acta Physica Polonica A; 2015, 128, 2B; B-477-B-478
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Phonon Drag and Magnetic Anomalies of Thermopower in $RB_{12}$ (R = Ho, Er, Tm, Lu)
Autorzy:
Glushkov, V.
Demishev, S.
Ignatov, M.
Khayrullin, E.
Sluchanko, N.
Shitsevalov, N.
Levchenko, A.
Filipov, V.
Flachbart, K.
Siemensmeyer, K.
Powiązania:
https://bibliotekanauki.pl/articles/1813647.pdf
Data publikacji:
2008-01
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
72.15.Jf
75.50.Ee
Opis:
High precision measurements of the Seebeck coefficient S(T) were carried out on the single crystals of $RB_{12}$ (R = Ho, Er, Tm, Lu) at temperatures 2-300 K. It was shown that the effects of phonon drag result from vibrations of rare earth ions ($ħω_E$≈10-33 meV) in the rigid framework structure of the $B_{12}$ clusters and determine the main contribution to thermopower at intermediate temperatures (30-300 K). The correlated behavior of transport parameters favors the appreciable enhancement of spin fluctuations in the sequence of magnetic compounds $(HoB_{12}-TmB_{12})$ when approaching to the valence instability state in $YbB_{12}$. The giant increase in S(T) detected in the vicinity of the Néel temperature $T_N$ for $HoB_{12},$ $ErB_{12},$ and $TmB_{12}$ seems to result from the density of states renormalization caused by antiferromagnetic ordering.
Źródło:
Acta Physica Polonica A; 2008, 113, 1; 275-278
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The effect of supplementing organic diets with fish meal and premix on the performance of pigs and some meat and blood characteristics
Autorzy:
Grela, E.R.
Matras, J.
Pisarski, R.K.
Sobolewska, S.
Powiązania:
https://bibliotekanauki.pl/articles/30373.pdf
Data publikacji:
2012
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Opis:
The aim of this study was to determine the effect of fish meal and mineral-vitamin premix, supplementing organic diets, on the performance of pigs and some meat and blood characteristics. The experiment was conducted on an organic pig fattening farm. The study involved 120 pigs with an approximate 25 kg body weight. Animals were divided into 3 groups, kept in pens, 10 animals each. Group I (control) animals were fed with plant feedstuffs of organic origin. Diets for group II and III were enriched with fish meal or fish meal and vitamin-mineral premix, respectively. The experiment was carried out till pigs reached a weight of 115 kg. Feed samples were subjected to laboratory analyses. Body weight (3 times) and feed intake were recorded. Blood samples were collected (2 times) to determine hematological and biochemical indices. Some parameters in meat samples were also determined. The fish meal addition improved (P ≤ 0.05) the average daily gains as well as feed conversion ratio during fattening period and mineral-vitamin premix significantly (P ≤ 0.05) fortified fish meal influence. Fish meal supplement improved (P ≤ 0.05) also some carcass characteristics. Supplementation of the diet with premix additionally decreased (P ≤ 0.05) backfat thickness and increased share of meat in carcass. Fish meal improved (P ≤ 0.05) some meat characteristics and elevated content of some polyunsaturated fatty acids. An increase in hemoglobin, red blood cell, white blood cell and cholesterol level in blood of animals from both experimental groups were also found. The results obtained proved the usefulness of fish meal and mineral-vitamin premix in the fatteners nutrition based on organic diets.
Źródło:
Polish Journal of Veterinary Sciences; 2012, 15, 2
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Koncepcje kształtowania bezpieczeństwa ruchu drogowego. Cz. 2, Możliwości zastosowania koncepcji trzech er w Polsce
Concepts of road safety development. Part 2. The possibility of the three eras concept implementation in Poland
Autorzy:
Jamroz, K.
Powiązania:
https://bibliotekanauki.pl/articles/144860.pdf
Data publikacji:
2013
Wydawca:
Stowarzyszenie Inżynierów i Techników Komunikacji Rzeczpospolitej Polskiej
Tematy:
drogi
bezpieczeństwo ruchu drogowego
kształtowanie bezpieczeństwa
koncepcja trzech er
roads
road safety
developing safety
three eras concepts
Opis:
Odpowiadając na zalecenia ONZ i Unii Europejskiej, Polska przystąpiła do opracowania strategicznego programu brd na lata 2013-2020. Jednym z podejść do opracowania tego programu powinna być koncepcja trzech er. W artykule przedstawiono propozycję praktycznego wdrożenia koncepcji trzech er na sieci dróg w Polsce.
In response to the recommendations of the United Nations and the European Union, Poland has acceded to develop a strategic road safety program for the years 2013 to 2020. One of the approaches to the development of this program should be the concept of three eras. This article describes a practical implementation of the concept of the three eras of the road network in Poland.
Źródło:
Drogownictwo; 2013, 1; 15-19
0012-6357
Pojawia się w:
Drogownictwo
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Role of Arsenic Antisite Defect in Nonstoichiometric Gallium Arsenide
Autorzy:
Jasiński, J.
Kurpiewski, A.
Korοna, K.
Kamińska, M.
Ρalczewska, M.
Krotkus, A.
Marcinkievicius, S.
Liliental-Weber, Z.
Tan, H. H.
Jagadish, C.
Powiązania:
https://bibliotekanauki.pl/articles/1933772.pdf
Data publikacji:
1995-10
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
78.30.Er
73.90.+f
Opis:
Over the last few years there have been many studies of GaAs layers grown at low temperatures (180-300°C), so called LT GaAs. The interest in LT GaAs was motivated by the potential application of 600oC annealed LT GaAs in microwave and fast optoelectronic devices because of its short photocarrier lifetime, reasonable mobility and high resistivity. These properties are associated with the nonstoichiometry of LT GaAs. Recently, studies of comparable material, nonstoichiometric GaAs produced by arsenic ion implantation have been initiated. There is still a strong controversy as to whether the arsenic antisite (As$\text{}_{Ga}$) or arsenic precipitates are responsible for unique electrical properties of both materials. This paper presents the results of structural and electrical studies of high energy As implanted GaAs and comments on relationships between the structure and the resulting electrical properties.
Źródło:
Acta Physica Polonica A; 1995, 88, 4; 747-750
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
UV and Gamma Irradiation Effect in Spectroscopic and Lasing Properties of Er$\text{}^{3+}$ doped Yttrium-Aluminium Garnet, Yttrium Orthoaluminate and Lithium Niobate Crystals
Autorzy:
Kaczmarek, S.
Pracka, I.
Mierczyk, Z.
Kopczyński, K.
Piramidowicz, R.
Malinowski, M.
Kisielewski, J.
Matkovskii, A.
Sugak, D. Yu.
Powiązania:
https://bibliotekanauki.pl/articles/1945656.pdf
Data publikacji:
1996-08
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
42.70.Hj
61.72.Ji
78.20.Dj
Opis:
Optical features (absorption and luminescence spectra) for Er$\text{}^{3+}$ doped yttrium-aluminium garnet (YAG), yttrium orthoaluminate (YAP) and LiNbO3 crystals as well as their changes after UV and gamma irradiations are presented. Possibility of gamma-induced sensibilization process in Er$\text{}^{3+}$ doped crystals is discussed. Positive result for non-pre-annealed gamma-irradiated rods of Er$\text{}^{3+}$:YAG crystal was stated.
Źródło:
Acta Physica Polonica A; 1996, 90, 2; 411-418
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Steady-State and Switch-Off Behavior of Upconversion in Er-Doped Fibers
Autorzy:
Khoptyar, D.
Jaskorzynska, B.
Powiązania:
https://bibliotekanauki.pl/articles/2035693.pdf
Data publikacji:
2003
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
71.20.Eh
78.20.Bh
78.55.-m
42.65.-k
Opis:
By measuring the metastable and the upconverted fluorescence in Er-doped fibers we determine rate of homogeneous upconversion as a function of the population inversion. The results confirm the prediction of our statistical model that at the same population inversion the upconversion rates under the steady-state and the switch-off conditions are different. The larger rate of the steady state upconversion is attributed to the pump enhanced redistribution of the excitation energy.
Źródło:
Acta Physica Polonica A; 2003, 103, 2-3; 207-210
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Sklad chemiczny nasion rzepaku przechowywanego w warunkach symulujacych silosy przemyslowe.
Autorzy:
Krasucki, W
Tys, J.
Grela, E.R.
Szafran, K.
Powiązania:
https://bibliotekanauki.pl/articles/833170.pdf
Data publikacji:
2001
Wydawca:
Instytut Hodowli i Aklimatyzacji Roślin
Tematy:
rzepak
sklad chemiczny
silosy przemyslowe
nasiona
przechowalnictwo
rape
chemical composition
industrial silo
seed
storage
Źródło:
Rośliny Oleiste - Oilseed Crops; 2001, 22, 1; 247-257
1233-8273
Pojawia się w:
Rośliny Oleiste - Oilseed Crops
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Electrical and Optical Properties of Highly Non-stoichiometric GaAs
Autorzy:
Kurpiewski, A.
Korona, K.
Kamińska, M.
Palczewska, M.
Jagadish, C.
Williams, J.
Powiązania:
https://bibliotekanauki.pl/articles/1876991.pdf
Data publikacji:
1995-02
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
73.90.+f
78.30.Er
Opis:
The studies of transport and optical properties of GaAs implanted with high arsenic doses were performed. As-implanted samples showed hopping conductivity and the exponential absorption tail in the near-IR region. Both effects were probably caused by the amorphization of implanted layer. Using EPR measurements it was found that arsenic antisite defect with high local strain field was created during implantation. Annealing of implanted layers at 600°C led to substantial removal of amorphization, decrease in absorption coefficient and hopping conductivity leading to resistive samples. The possible model of such behaviour may be similar to the one of suggested for low temperature GaAs layers.
Źródło:
Acta Physica Polonica A; 1995, 87, 2; 518-522
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł

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