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Tytuł:
Modulation of lymphocyte subsets and humoral immune response by florfenicol administered to sheep red blood cell-immunized broiler chickens
Autorzy:
Lis, M.
Szczypka, M.
Suszko-Pawłowska, A.
Świtała, M.
Pawłowski, P.
Obmińska-Mrukowicz, B.
Powiązania:
https://bibliotekanauki.pl/articles/2087412.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
florfenicol
antibodies
bird
broilers
immunity
lymphocytes
Źródło:
Polish Journal of Veterinary Sciences; 2019, 4; 677-683
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Possibilities to Obtain Products from 2024 and 7075 Chips in the Process of Consolidation by KoBo Extrusion
Autorzy:
Pawłowska, B.
Śliwa, R. E.
Zwolak, M.
Powiązania:
https://bibliotekanauki.pl/articles/355868.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
metallic chips
KoBo method
cold plastic consolidation
structural properties of extrudate
mechanical properties of extrudate
Opis:
Basing on experimental data, the possibility of consolidating side products of turning, milling and drilling of aluminum alloys into the form and properties of solids metals using low-temperature KoBo extrusion method has been assessed. Research regarding mechanical and structural properties of the final products revealed their total consolidation and proved their compatibility with requirements for products made of bulk billets. Importantly, the chips consolidation process does not require high or even raised temperature, which significantly reduces the unfavorable phenomenon of chips oxidation and its negative influence on the structure and mechanical properties of products. A very good effect of chips compaction has been proved by KoBo method, which has been confirmed by relatively slightly different mechanical properties of the material after recycling compared with the bulk one. Among currently applied techniques of consolidation of dispersed fractions in a solid state (leaving the melting stage out), the KoBo method seems an innovative way of utilizing metallic chips, as it enables a cold deformation process.The paper presents investigations using 2024 and 7075 aluminum alloys chips from manufacturing process, formed into briquettes and deformed under conditions of KoBo extrusion process, which enables to obtain long product by cold forming. The final product characterized by good microstructures, mechanical features and low cost of production.
Źródło:
Archives of Metallurgy and Materials; 2019, 64, 4; 1213-1221
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Prevalence and selected risk factors of suicidal ideation, suicidal tendencies and suicide attempts in young people aged 13–19 years
Autorzy:
Zygo, M.
Pawłowska, B.
Potembska, E.
Dreher, P.
Kapka-Skrzypczak, L.
Powiązania:
https://bibliotekanauki.pl/articles/2083220.pdf
Data publikacji:
2019
Wydawca:
Instytut Medycyny Wsi
Tematy:
family
adolescents
suicidal behaviour
Opis:
Objective. The aim of this study was to assess the prevalence of suicidal thoughts, tendencies and suicide attempts in young people. An attempt was also made to identify factors which, according to those young people, contributed to their suicide attempts. Materials and method. The study involved 5,685 individuals aged 13–19 years. The participants were surveyed using an inquiry form designed by the study authors. Results. Suicidal behaviour in adolescents correlates with the female gender, intake of psychoactive substances, running away from home, being raised in a single-parent family, addiction of family members to alcohol, and experiences of violence. Conclusions. 1) Suicidal ideation was reported by 24.66%, suicidal plans – by 15.55%, and suicide attempts – by 4.37% of the adolescents studied. 2) Girls were significantly more likely to attempt suicide out of a sense of helplessness, loneliness, rejection and guilt, as well as conflicts with parents and peers. Boys were significantly more likely than girls to attempt suicide as a result of pressure from peers or cyber acquaintances. 3) Suicide attempts were significantly more common among girls than boys between the ages of 13–19, and significantly more common among young people living in urban areas than those living in the countryside. 4) Significantly more young people who reported suicidal thoughts and plans and suicide attempts than those not reporting such experiences were raised in single-parent families. 5) Compared with non-suicidal controls, young people who admitted to having suicidal thoughts and plans and to having attempted suicide, were significantly more likely to report alcohol abuse by parents and experiences of psychological and physical violence from family members.
Źródło:
Annals of Agricultural and Environmental Medicine; 2019, 26, 2; 329-336
1232-1966
Pojawia się w:
Annals of Agricultural and Environmental Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Psychopathological symptoms in individuals at risk of Internet addiction in the context of selected demographic factors
Autorzy:
Potembska, E.
Pawłowska, B.
Szymańska, J.
Powiązania:
https://bibliotekanauki.pl/articles/2082922.pdf
Data publikacji:
2019
Wydawca:
Instytut Medycyny Wsi
Tematy:
psychopathological symptoms
Internet addiction
anxiety
depression
obsessive-compulsive disorder
gender
rural
urban
Opis:
Introduction. Researchers who study the problems of Internet addiction point out that this dependence is often co-morbid with symptoms of a variety of pathological disorders, including anxiety, depressive, somatization, and obsessive-compulsive disorders. The goal of this study was to compare the severity of psychopathological symptoms in individuals at risk of Internet addiction (according to Young’s criteria) and those not at risk of developing this addiction with respect to gender and place of residence (urban vs. rural). Materials and method. The study included a group of 692 respondents (485 females and 207 males). The average age of the participants was 20.8 years. 56.06% of them lived in urban areas and 43.94% in rural areas. The following instruments were used: a sociodemographic questionnaire designed by the authors, Young’s 20-item Internet Addiction Test (IAT, Polish translation by Majchrzak and Ogińska-Bulik), and the “O” Symptom Checklist (Kwestionariusz Objawowy “O”, in Polish) by Aleksandrowicz. Results. Individuals at risk of Internet addiction showed significantly more severe pathological symptoms than the individuals who were not at risk of this addiction. There were differences in the severity of psychopathological symptoms between people at risk of Internet dependence living in urban and rural areas. Conclusions. Individuals at risk of Internet addiction were found to be characterized by a significantly higher severity of obsessive-compulsive, conversion, anxiety, and depressive symptoms. Persons at risk of Internet addiction who lived in rural areas had significantly more severe psychopathological symptoms, mainly obsessive-compulsive, hypochondriac and phobic, compared to their urban peers.
Źródło:
Annals of Agricultural and Environmental Medicine; 2019, 26, 1; 33-38
1232-1966
Pojawia się w:
Annals of Agricultural and Environmental Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Alcohol intoxication among adolescents and children in urban and rural environments – a retrospective analysis
Autorzy:
Pawlowska-Kamieniak, A.
Mroczkowska-Juchkiewicz, A.
Kominek, K.
Krawiec, P.
Melges, B.
Pac-Kozuchowska, E.
Powiązania:
https://bibliotekanauki.pl/articles/2081528.pdf
Data publikacji:
2018
Wydawca:
Instytut Medycyny Wsi
Tematy:
children
adolescents
alcohol intoxication
village
town
Opis:
Introduction and objective. Drinking alcohol by adolescents and children poses a risk of long-term psychological and sociological consequences, often leading to addiction in adulthood. A steady increase in the number of young people reaching for alcohol is worrying. The study analyzes the age and gender of the children, concentration of alcohol in the blood, depending on the origin of the youth (urban or rural). Material and method. The study was a retrospective analysis of 402 patients hospitalized due to alcohol intoxication in the Department of Paediatrics at Medical University in Lublin, Poland between 2004 – 2013. Results. During the study period a continuous increase in admissions of patients after alcohol consumption was observed: from 27 children in 2004 to 53 in 2012 and 2013. The youngest patient hospitalized after drinking was 7.6 years old and came from the rural environment, the oldest 18 years old and came from the urban environment. In 2004 – 2007, boys dominated among children intoxicated with alcohol; since 2008, a slight prevalence of girls has been observed, especially in the urban environment. Among patients coming from the country, boys always predominated. In the study period there was noted a similar number of children consuming alcohol from rural and urban environments. Conclusions. The results suggest the need to introduce appropriate educational programmes in schools to prevent the consumption of alcohol at a young age.
Źródło:
Annals of Agricultural and Environmental Medicine; 2018, 25, 1; 1-3
1232-1966
Pojawia się w:
Annals of Agricultural and Environmental Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Benefits of incorporating the concept of corporate social responsibility into the strategy of transport sector companies
Autorzy:
Pawłowska, B.
Powiązania:
https://bibliotekanauki.pl/articles/95637.pdf
Data publikacji:
2018
Wydawca:
Fundacja Ekonomistów Środowiska i Zasobów Naturalnych
Tematy:
społeczna odpowiedzialność biznesu
port morski
rozwój zrównoważony
model biznesowy
corporate social responsibility
sea port
sustainable development
business model
Opis:
Economy is subject to constant change, and business models and strategies of enterprises often become obsolete before they are implemented. Such circumstances of the modern world force entrepreneurs to use creative thinking and non-standard solutions. Change is present in almost all business areas – starting from production, through distribution, marketing and sales, to operational management. It is a commonly accepted permanent standard of the current times. The contemporary course of socio-economic development on the international arena is outlined by Agenda 2030, adopted in 2015, where the core is the idea of sustainable development. One of the tools for implementing sustainable development is the concept of corporate social responsibility (CSR). The aim of the article is to identify the benefits of incorporating CSR strategies into the business model of transport sector companies – from visions and missions, through strategic objectives, policies and programmes, and ending with procedures. It is supposed to improve efficiency and bring stable results, which will become a source of competitive advantage in the transport sector.
Źródło:
Ekonomia i Środowisko; 2018, 4; 212-222
0867-8898
Pojawia się w:
Ekonomia i Środowisko
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Koszty zewnętrzne transportu w Polsce
External costs of transport in Poland
Autorzy:
Pawlowska, B.
Powiązania:
https://bibliotekanauki.pl/articles/886513.pdf
Data publikacji:
2018
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
Tematy:
transport
koszty
koszty zewnetrzne
internalizacja
polityka transportowa
Polska
Źródło:
Scientific Review Engineering and Environmental Sciences; 2018, 27, 1[79]
1732-9353
Pojawia się w:
Scientific Review Engineering and Environmental Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Role of anion in the effect of tetrabutylammonium salts on common radish seedlings: growth inhibition and oxidative stress
Autorzy:
Pawlowska, B.
Telesinski, A.
Wrobel, J.
Biczak, R.
Curylo, K.
Powiązania:
https://bibliotekanauki.pl/articles/13755.pdf
Data publikacji:
2018
Wydawca:
Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Źródło:
Journal of Elementology; 2018, 23, 4
1644-2296
Pojawia się w:
Journal of Elementology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Satysfakcja klienta jako akcelerator zmian w organizacji. Studium przypadku Jeronimo Martins
Customer satisfaction as accelerator of changes in organization. Case study Jeronimo Martins
Autorzy:
Nieżurawski, L.
Pawłowska, B.
Powiązania:
https://bibliotekanauki.pl/articles/326112.pdf
Data publikacji:
2018
Wydawca:
Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
Tematy:
satysfakcja klienta
akcelerator zmian
świadomość marki
customer satisfaction
accelerator of changes
brand awareness
Opis:
Satysfakcja klienta w obecnych realiach rynkowych stała się bardzo skutecznym akceleratorem zmian w organizacji. Niski poziom satysfakcji klienta, często wprost identyfikowany z niską jakością oferty, obniża reputację organizacji. Dzięki zadowoleniu klienta organizacje mogą zwiększyć wartość swojej marki. Celem artykułu jest próba wskazania wpływu satysfakcji klienta na zmianę postrzegania wizerunku i reputacji organizacji. Wykorzystano sondaż diagnostyczny metodą ankiety bezpośredniej. W badaniu wzięło udział 96-ciu respondentów, klientów znanej i popularnej sieci dyskontowej. Badania potwierdziły skuteczność przeprowadzonego rebranding w firmie Jeronimo Martins Polska S.A. Klienci wskazali, między innymi, na wzrost atrakcyjności oferty, wzrost jakości za konkurencyjną cenę.
Nowadays, in market reality, customer satisfaction became such an effective accelerator of changes in organization. Low grade of the customer satisfaction, identified as a low-quality offer, indicates the lower reputation of organization. Through the customer satisfaction, the organizations can increase the value of their brand. Purpose of the article is to indicate the impact of customer satisfaction in change of image and reputation of organization. Article presents the results of direct diagnostic survey. In research participated ninety six respondents – the customers of widely known and popular discount chain. The research confirmed the effectiveness of rebranding at the company Jeronimo Martins in Poland. Customers indicated, among others to increase the attractiveness of the offer, to improve of quality at a competitive price.
Źródło:
Zeszyty Naukowe. Organizacja i Zarządzanie / Politechnika Śląska; 2018, 129; 325-338
1641-3466
Pojawia się w:
Zeszyty Naukowe. Organizacja i Zarządzanie / Politechnika Śląska
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Activity of dehydrogenases in clay soil exposed to quaternary ammonium salts with iodine anion
Autorzy:
Telesinski, A.
Pawlowska, B.
Biczak, R.
Pater, J.
Powiązania:
https://bibliotekanauki.pl/articles/905363.pdf
Data publikacji:
2017
Wydawca:
Uniwersytet Marii Curie-Skłodowskiej. Wydawnictwo Uniwersytetu Marii Curie-Skłodowskiej
Opis:
The aim of the research was to compare the effects of four to quaternary ammonium salts (QAS) with iodine anion: tetramethylammonium iodine [TMA][I], tetraethylammonium iodine [TEA][I], tetrapropylammonium iodine [TEA][I], tetrabutylammonium iodine [TBA][I]. The experiment was carried out on sandy clay loam samples with organic carbon content of 33.82 g·kg⁻¹, and pH in 1 M KCl 7.13. QAS were added to soil at the dosages of: 0, 10, 100, and 1000 mg·kg⁻¹. Activity of dehydrogenases was assayed on days: 1, 14, 35, and 70. Obtained results have shown that the soil treatment with quaternary ammonium salts with iodine anion caused decrease in activity of dehydrogenases. This inhibition increased with increase of QAS dosages, and increase with alkyl chains in cations. Analysis of variance η² indicated, that type of QAS had the biggest impact on formation of activity of dehydrogenases in soil.
Źródło:
Polish Journal of Soil Science; 2017, 50, 2
0079-2985
Pojawia się w:
Polish Journal of Soil Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Combined effect of low-molecular-weight organic acids and creosote on phosphatase activities in sandy soil
Autorzy:
Telesinski, A.
Curylo, K.
Platkowski, M.
Krzysko-Lupicka, T.
Pawlowska, B.
Cybulska, K.
Powiązania:
https://bibliotekanauki.pl/articles/905378.pdf
Data publikacji:
2017
Wydawca:
Uniwersytet Marii Curie-Skłodowskiej. Wydawnictwo Uniwersytetu Marii Curie-Skłodowskiej
Opis:
This paper assesses the impact of creosote and low-molecular-weight organic acids (LMWOAs) on the activity of acid phosphomonoesterase, alkaline phosphomonoesterase, phosphotriesterase, and inorganic pyrophosphatase in soil. The experiment was carried out on loamy sand samples with organic carbon content of 8.71 g·kg⁻¹, with the following variable factors: dosages of creosote: 0, 0.5%, and 2.5%; type of LMWOAs: oxalic acid, tartaric acid, and citric acid in the amount of 50 mmol·kg⁻¹ of soil; days of experiment: 1, 7, 14, 28, 56, 112. Obtained results showed that contamination with creosote caused decrease in the activity of soil phosphatases. The observed effect did not always increase with increase in the dosage of the pollutant. Among the assayed phosphatases, the biggest changes were noted in the activity of phosphomonoesterases. Application of LMWOAs to contaminated soil mainly effected the inhibition of phosphatase, especially the activity of acid phosphomonoesterase. Comparison of the effects of LMWOAs showed that the citric acid was the least toxic to soil phosphatases.
Źródło:
Polish Journal of Soil Science; 2017, 50, 2
0079-2985
Pojawia się w:
Polish Journal of Soil Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Przegląd technologii recyklingu zużytych akumulatorów litowo-jonowych
Recycling technologies of used lithium-ion batteries - a review
Autorzy:
Wójcik, M.
Pawłowska, B.
Stachowicz, F.
Powiązania:
https://bibliotekanauki.pl/articles/195188.pdf
Data publikacji:
2017
Wydawca:
Politechnika Rzeszowska im. Ignacego Łukasiewicza. Oficyna Wydawnicza
Tematy:
akumulatory litowo-jonowe
samochody hybrydowe
samochody elektryczne
recykling
odzysk metali
lithium-ion batteries
hybrid electric vehicles
electric vehicles
recycling
metals recovery
Opis:
Wzrastająca corocznie liczba samochodów elektrycznych i hybrydowych wymusza na ich producentach opracowywanie nowych technologii w zakresie recyklingu. Istotnym elementem nowego typu pojazdów z punktu widzenia ekologii i ochrony zasobów naturalnych, są akumulatory litowo-jonowe stosowane do zasilania samochodów hybrydowych. Zużyte baterie litowo-jonowe są stosunkowo nowym odpadem, dlatego większość procesów ich odzysku i recyklingu pozostaje w sferze badań laboratoryjnych. W zaprezentowanym artykule dokonano przeglądu metod recyklingu wyeksploatowanych akumulatorów litowo-jonowych, stosowanych w skali przemysłowej, jak i dopiero znajdujących się w fazie testów laboratoryjnych. Przedstawiono również budowę baterii litowo-jonowych oraz charakterystykę rynku pojazdów hybrydowych, zarówno w Polsce, jak i na świecie.
The increase of the amount of hybrid and electric vehicles results in the development of their new recycling technologies. From the environmental and protection of natural resources point of view, the substantial element of hybrid electric vehicles is lithium-ion battery. These batteries are commonly used to power new types of cars. However, used lithium-ion batteries are relatively new kind of waste. For this reason, the most of recycling and recovery processes are in laboratory research. This article shows the review of recycling methods of lithium-ion batteries, which are used both on industrial scale and in laboratories. This paper also presents a composition of lithium-ion batteries and the characteristic of automotive market both in Poland and in the world.
Źródło:
Zeszyty Naukowe Politechniki Rzeszowskiej. Mechanika; 2017, z. 89 [295], 2; 107-120
0209-2689
2300-5211
Pojawia się w:
Zeszyty Naukowe Politechniki Rzeszowskiej. Mechanika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Recykling wiórów aluminium metodą KOBO
Recycling aluminum chips by KoBo method
Autorzy:
Pawłowska, B.
Śliwa, R. E.
Powiązania:
https://bibliotekanauki.pl/articles/212006.pdf
Data publikacji:
2017
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Obróbki Plastycznej
Tematy:
wióry metaliczne
współbieżne wyciskanie
metoda KOBO
konsolidacja plastyczna
właściwości mechaniczne prasówki
metallic chips
concurrent extrusion
KOBO method
hot plastic consolidation
mechanical properties of extrudate
Opis:
W pracy dokonano analizy możliwości recyklingu wiórów na przykładzie wiórów ze stopu 2024, metodą konsolidacji plastycznej w procesie KoBo. Metoda recyklingu stanowi alternatywne rozwiązanie w stosunku do tradycyjnych sposobów odzysku metali poprzez procesy topienia. Stosowane do tej pory procesy recyklingu wiórów są mało efektywne z uwagi na duże straty metalu wskutek utleniania przy nagrzewaniu do temperatury topienia. Ponadto, konsolidacja wiórów nie wymaga stosowania wysokiej, czy nawet podwyższonej temperatury procesu, co znacząco ogranicza niekorzystne zjawisko utleniania wiórów i negatywny wpływ na strukturę i własności mechaniczne wyrobów. Zaproponowana w pracy metoda opiera się na zagęszczeniu wiórów na zimno do postaci brykietów, a następnie wyciskaniu metodą KoBo w temperaturze otoczenia. Wyciskane pręty poddano badaniom właściwości mechanicznych (jednoosiowa próba rozciągania oraz pomiar twardości metodą Vickersa), które porównano z określonymi właściwościami mechanicznymi materiału litego. Wykazano bardzo dobry efekt konsolidacji wiórów w procesie KoBo potwierdzony stosunkowo niewiele różniącymi się właściwościami mechanicznymi materiału po recyklingu w porównaniu do materiału litego. W stosunku do innych metod recyklingu, wyciskanie wiórów metodą KOBO jest rozwiązaniem w pełni innowacyjnym i energooszczędnym. Jego zastosowanie na zaadaptowanych do procesu KOBO prasach przemysłowych, stwarza szansę na uzyskanie wyrobów o większych przekrojach poprzecznych i większym stopniu przerobu, a przy tym pozwoli na sterowanie właściwościami wyrobu przez odpowiedni dobór parametrów prowadzenia procesu i ewentualnej obróbki cieplnej.
This paper presents an analytical study of recycling aluminum chips, on the example of chips of 2024 aluminum alloy, by plastic consolidation with the use of KoBo method. The recycling method is an alternative solution to conventional method of recovering metals by melting processes. However, the recycling methods, which have been applied so far, are hardly effective considering large metal waste due to oxidation when heating the chips to the melting temperature. Moreover, chip consolidation does not require high or even elevated temperature of the process, which considerably reduces the chip oxidation and negative effect on the structure and mechanical properties of the product. The proposed method is based on cold compaction of chips into briquettes, and then extrusion by KoBo method at room temperature. The extruded wires were tested for mechanical properties (uniaxial tensile test and Vickers hardness test), and compared with specific mechanical properties of solid material. A very good effect of chips compaction has been proved by KoBo method, which has been confirmed by relatively slightly different mechanical properties of the material after recycling compared with the solid one. In comparison to other recycling methods, chip extrusion by KoBo method is an innovative and energy efficient solution. The application of that method on specially designed hydraulic presses allows for obtaining products of larger cross-sections as well as larger scale of chip processing. It will also allow for controlling the product properties by proper selection of process parameters and possible heat treatment.
Źródło:
Obróbka Plastyczna Metali; 2017, 28, 4; 301-316
0867-2628
Pojawia się w:
Obróbka Plastyczna Metali
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Response of Soil Phosphatases to Three Different Ionic Liquids With Hexafluorophosphate Anion
Autorzy:
Telesiński, A.
Śnioszek, M.
Biczak, R.
Pawłowska, B.
Powiązania:
https://bibliotekanauki.pl/articles/123035.pdf
Data publikacji:
2017
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
ionic liquids
soil
phosphomonoesterases
phosphotriesterase
inorganic pyrophosphatase
resistance index
Opis:
The aim of this study was to determine the effect of three different ionic liquids (ILs): 1-butyl-1-methylpyrrolidynium hexafluorophosphate [Pyrrol][PF6], 1-butyl-1-methylpiperydynium hexafluorophosphate [Piper][PF6] and 1-butyl-4-methylopirydynium hexafluorophosphate [Piryd][PF6] on phosphatase activities in soil. The pot experiment was carried out on loamy sand (Corg content 9.0 g/kg) with spring barley as a tested plant. The ILs was used at the dosages of 0, 1, 10, 50, 100, 400, 700 and 1000 mg/kg dry matter (DM). On day 14, soil samples were collected and activities of alkaline phosphomonoesterase, acid phosphomonoesterase, phosphotriesterase and inorganic pyrophosphatase were determined. Based on the analysis of the effect measure η2 by variance analysis – ANOVA – the percentage shares of all variable factors affecting the activity of phosphatases were also defined. Obtained results showed that the application of different dosages of all ILs caused mainly non-significant changes in phosphatase activity. Changes in activity of phosphatases were often not dependent on IL dosages. The most sensitive for ILs were both phosphomonoesterases. The type of ILs had the highest percentage participation in formation of acid phosphomonoesterase activity, while dosages of ILs affected mainly alkaline phosphomonoesterase and phosphotriesterase activities.
Źródło:
Journal of Ecological Engineering; 2017, 18, 2; 86-91
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The effect of ionic liquids with the tetrafluoroborate anion on terrestrial plants
Autorzy:
Biczak, R.
Pawłowska, B.
Tomczuk, K.
Feder-Kubis, J.
Powiązania:
https://bibliotekanauki.pl/articles/207364.pdf
Data publikacji:
2017
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
ionic liquids
tetrafluoroborate
ciecz jonowa
tetrafluoroboran
Opis:
Ionic liquids have attracted considerable interest as excellent alternatives to organic solvents to be used in homogeneous and biphasic processes. Ionic liquids are non-volatile, non-flammable and their “green” character has usually been justified with their negligible vapour pressure. However, the marketing of any chemical substance requires the determination of their impact on all elements of nature. Determination of the potential ecotoxicity of new chemical compounds is associated with conducting research on the effects of those compounds on the growth and development of selected organism. The phytotoxic properties of chiral ionic salts with the alkylimidazolium cation and the tetrafluoroborate anion were assessed for selected weeds popular in Poland: gallant soldier (Galinsoga parviflora Cav.), white goosefoot (Chenopodium album L.) and common sorrel (Rumex acetosa L.). It was found that 3-alkyl-1-[(1R,2S,5R)-(–)-menthoxymethyl]imidazolium tetrafluoroborates – ([C8-Im-Men][BF4]) and ([C9-Im-Men][BF4]) were low toxic to plants. A higher toxicity to terrestrial plants was characterized by ([C11-Im-Men][BF4]). The toxicity effect of compounds depended non only on the length of the alkyl chain in the function group but also on the concentration of the used compound and the type of plant which was sprayed with the tested compound.
Źródło:
Environment Protection Engineering; 2017, 43, 2; 41-52
0324-8828
Pojawia się w:
Environment Protection Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 56

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