Informacja

Drogi użytkowniku, aplikacja do prawidłowego działania wymaga obsługi JavaScript. Proszę włącz obsługę JavaScript w Twojej przeglądarce.

Wyszukujesz frazę "a source" wg kryterium: Wszystkie pola


Tytuł:
Language as a Source of Liberation, and Language as a Source of Control
Autorzy:
Luxmoore, Jonathan
Powiązania:
https://bibliotekanauki.pl/articles/22023367.pdf
Data publikacji:
2023-11-23
Wydawca:
Państwowa Wyższa Szkoła Zawodowa w Chełmie
Tematy:
language
unpredictability
cultural outlook
Wittgenstein
communist disinformation
onslaught
Opis:
We think and act through language. It determines how we exchange ideas, express emotions and see the world. And as such, language has always been a motor for enlightenment and progress, but also a means of control. It expresses our identity, and that identity takes multiple forms, affecting and shaping our values and priorities, how we view the world and those around us. They also determine the language we use and this, not surprisingly, often becomes a source of political, social, cultural and ideological struggle. It also explains why, over the course of history, the wielders of power have sought to restrict or alter the use of language by controlling education, culture, social customs, awareness of history and perceptions of identity. Poles have their own experience of this from the time of the Partitions, when imperial rulers attempted to curb transmission of the Polish language. Yet the efforts are being witnessed today, notably in Russia's portrayal of events in Ukraine. Are there grounds for thinking struggles over language have become more extreme today, in the face of new ideological and social pressures, as powerful and well-resourced lobbies and interest-groups manipulate the confusion and self-doubt of the majority to advance their own agendas? If so, we should remind ourselves that the spread of permissive, self-willed Western mindsets is very far from universal. Indeed, such mindsets are widely contested; and while social media and mass culture have been used as vehicles for promoting radical change, they are also being used increasingly as channels for a more integral, conservative vision of the world and humanity. We need to think and speak with critical precision, with a healthy empirical scepticism - and reject the lazy reliance on epithets, categorisations, stereotypes and simplifications which the new ideological orthodoxies so often rely upon.
Źródło:
Language. Culture. Politics. International Journal; 2023, 1, 1; 15-24
2450-3576
2719-3217
Pojawia się w:
Language. Culture. Politics. International Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Plants – a source of therapeutic material?
Autorzy:
Bober, Zuzanna
Stępień, Agnieszka
Aebisher, David
Ożóg, Łukasz
Bartusik-Aebisher, Dorota
Powiązania:
https://bibliotekanauki.pl/articles/454997.pdf
Data publikacji:
2018
Wydawca:
Uniwersytet Rzeszowski. Wydawnictwo Uniwersytetu Rzeszowskiego
Tematy:
plants
natural products
drug
therapeutic material
Opis:
Introduction. The use of plants with therapeutic or medicinal properties is as ancient as human civilization and for many years prior to the 20th century, plants and animal products were the main source of therapeutic medicinal drugs. Aim. The discovery of new plant-derived drugs continues to be an active field of research in medical science today. The aim of this article is to describe several main classes of natural products currently under investigation. Material and methods. Analysis of literature.
Źródło:
European Journal of Clinical and Experimental Medicine; 2018, 1; 34-36
2544-2406
2544-1361
Pojawia się w:
European Journal of Clinical and Experimental Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Northern berries as a source of carotenoids
Autorzy:
Lashmanova, Katya
Kuzivanova, Olga
Dymova, Olga
Powiązania:
https://bibliotekanauki.pl/articles/1039799.pdf
Data publikacji:
2012
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
HPLC analyses
berries
carotenoids
Opis:
Carotenoids are bioactive substances in human diet. The aim of the study was to determine β-carotene and xanthophylls in four berries species. An HPLC gradient elution system were used for separation and quantification of the carotenoids. The highest total carotenoid content among the berries studied was found in cloudberry (2840 μg/100g dw), followed by blueberry (2140 μg/100 g). All berries had lutein but it was a predominant carotenoid in blueberry. The highest β-carotene levels were found in cloudberry (83% of total Car content). Cranberry and cowberry were the poorest sources of carotenoids. Our data will be included in the regional database of resources with the increased nutritional value.
Źródło:
Acta Biochimica Polonica; 2012, 59, 1; 133-134
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Stereotypes as a source of gender inequality
Autorzy:
Kraińska, Agata
Powiązania:
https://bibliotekanauki.pl/articles/1190067.pdf
Data publikacji:
2016
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
stereotype
sex
society
roles
women's competitions
competitions for
Opis:
The roles of women and men in society are often dependent on gender. The rules of social life are shaped culture, religion, or stereotypes. Clearly noticed the impact of stereotypes on the perception of women and men in society. Schematic perception of men and women is accompanied by mankind ever since. Unfortunately, they have a significant negative impact on the perception of women in society and in the workplace. Women are perceived as being weak, fragile, who can not make important and sometimes risky decisions. Such perception of women means that they have limited access to managerial positions.
Źródło:
World Scientific News; 2016, 51; 47-51
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Food as a source of exposure to nickel
Autorzy:
Mania, M.
Rebeniak, M.
Postupolski, J.
Powiązania:
https://bibliotekanauki.pl/articles/873725.pdf
Data publikacji:
2019
Wydawca:
Narodowy Instytut Zdrowia Publicznego. Państwowy Zakład Higieny
Opis:
According to the European Food Safety Authority (EFSA), food is the main source of nickel intake by the general population. Based on the risk assessment, EFSA determined the tolerable daily intake of this element (TDI) from all sources at the level of 2.8 μg/kg body weight, which is for an adult 196 μg, while for a child 56 μg. The Benchmark Dose Lower Confidence Limit (BMDL₁₀) associated with dermatitis at 1.1 μg/kg body weight was also determined as well as the Margin of Exposure (MOE). Nickel intake in the Member States varies and depends on consumption habits. CONTAM Panel of EFSA considered the unlikely possibility of developing cancers related to the intake of nickel with food. According to experts, other harmful effects on the human body are more often identified. An additional aspect requiring further investigations that will allow an actual estimation of exposure associated with intake of this element by various groups of population is the issue of nickel absorption in the human body. The review of the EFSA opinion on the request of the European Commission planned in the near future based on the collected data as part of the action of the Commission Recommendation (EU) 2016/1111 on monitoring the presence of nickel in food will contribute to taking appropriate actions related to consumer protection, including the most vulnerable groups of population.
Według Europejskiego Urzędu ds. Bezpieczeństwa Żywności (EFSA), głównym źródłem pobrania niklu przez populację generalną jest żywność. Na podstawie dokonanej oceny ryzyka EFSA wyznaczył wartość tolerowanego dziennego pobrania tego pierwiastka (Tolerable Daily Intake TDI) ze wszystkich źródeł na poziomie 2,8 μg/kg masy ciała, co stanowi dla osoby dorosłej 196 μg, natomiast dla dziecka 56 μg. Określono również najniższą dawkę wyznaczającą (Benchmark Dose Lower Confidence Limit) – BMDL₁₀ związaną z występowaniem zapaleń skórnych na poziomie - 1,1 μg/kg masy ciała oraz wyznaczono wartość marginesu narażenia (Margin of Exposure – MOE). Pobranie niklu w państwach członkowskich jest zróżnicowane i zależne od nawyków żywieniowych. Panel CONTAM EFSA uznał za mało prawdopodobną możliwość powstawania nowotworów związanych z pobraniem niklu z żywnością. Zdaniem ekspertów znacznie częściej identyfikowane są inne efekty szkodliwe na organizm człowieka. Dodatkowym aspektem wymagającym dalszych badań, który pozwoli na rzeczywiste oszacowanie narażenia związanego z pobraniem tego pierwiastka przez różne grupy populacji, jest kwestia wchłaniania niklu w organizmie człowieka. Planowana w najbliższym czasie na wniosek Komisji Europejskiej rewizja opinii EFSA, w oparciu o zgromadzone dane w ramach zalecenia Komisji (UE) nr 2016/1111 w sprawie monitorowania obecności niklu w żywności, przyczyni się do podjęcia odpowiednich działań związanych z ochroną konsumentów, w tym najbardziej wrażliwych grup populacji.
Źródło:
Roczniki Państwowego Zakładu Higieny; 2019, 70, 4
0035-7715
Pojawia się w:
Roczniki Państwowego Zakładu Higieny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Waste tires as a source of valuable chemicals
Autorzy:
Ambrosewicz-Walacik, M.
Walacik, M.
Powiązania:
https://bibliotekanauki.pl/articles/244309.pdf
Data publikacji:
2016
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
waste tyres
pyrolysis
pyrolytic oil
chemical composition
Opis:
The aim of the study was to determine the possibility of the isolation of valuable chemical compounds from pyrolysis oil obtained from the pyrolyzed waste car tires. Produced pyrolysis oil were subjected to a distillation process to isolate medium naphtha fraction average naphtha that contains limonene, which according to the literature data, can be used as an environmental friendly solvent in a number of cleaning agents. Considering the boiling point of limonene (176°C), the medium fraction of the separated oil was re-distilled to isolate compounds with temperature of boiling point between 174-177°C. The prepared sample was analysed by gas chromatography coupled with mass spectroscopy. Based on the chromatographic analysis, it was found that in a separate sample of pyrolysis oil the highest share constituted toluene, and then cyclobutane, benzene derivatives, which is essential in the chemical industry. The share of limonene was low (approx. 1%), what is explained by too high temperature of the pyrolytic process. The results of analysis and literature allow unequivocally state that in order to separate specific compounds from pyrolytic oil, parameters of this process should be first determined in pilot studies. In conclusion, it is believed that the pyrolysis of tires is suitable method of disposing of the waste, thereby obtaining products containing valuable compounds for the fuel and chemical industries.
Źródło:
Journal of KONES; 2016, 23, 2; 25-29
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A Power Transformer as a Source of Noise
Autorzy:
Zawieska, W. M.
Powiązania:
https://bibliotekanauki.pl/articles/90466.pdf
Data publikacji:
2007
Wydawca:
Centralny Instytut Ochrony Pracy
Tematy:
power transformer
noise reduction
active methods
transformer modeling
rectangular plate vibrations
transformer noise
vibroacoustic analysis
Opis:
This article presents selected results of analyses and simulations carried out as part of research performed at the Central Institute of Labor Protection – the National Research Institute (CIOP-PIB) in connection with the development of a system for active reduction of noise emitted by high power electricity transformers. This analysis covers the transformer as a source of noise as well as a mathematical description of the phenomenon of radiation of vibroacoustic energy through a transformer enclosure modeled as a vibrating rectangular plate. Also described is an acoustic model of the transformer in the form of an array of loudspeakers.
Źródło:
International Journal of Occupational Safety and Ergonomics; 2007, 13, 4; 381-389
1080-3548
Pojawia się w:
International Journal of Occupational Safety and Ergonomics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Radicalization as a Source of Danger to Safety
Autorzy:
Łachacz, Tomasz
Holger, Nitsch
Powiązania:
https://bibliotekanauki.pl/articles/1374828.pdf
Data publikacji:
2019
Wydawca:
Wyższa Szkoła Policji w Szczytnie
Tematy:
terrorism
radicalization
extremism
threat
communication
Opis:
The article discusses the phenomenon of radicalization, which becomes a source of danger for the individual and the security of the state. At the beginning the article discusses the essence and causes of the phenomenon, and then refers to the Polish and German strategies in the field of security. The documents identify radicalization and extremism as a contemporary threat to national security, which is confirmed by numerous attacks in Europe. Examples of attacks involving radicalized individuals are discussed in this paper in the article. The discussion ends with conclusions emphasizing that in the process of radicalization the information provided to individuals and communication between government institutions and society are extremely important.
Źródło:
Internal Security; 2019, 11(2); 119-127
2080-5268
Pojawia się w:
Internal Security
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Mikroglony : źródło biomasy
Microalgae : a source of biomass
Autorzy:
Krzemińska, I.
Kwietniewska, E.
Tys, J.
Palcowska, A.
Powiązania:
https://bibliotekanauki.pl/articles/312207.pdf
Data publikacji:
2012
Wydawca:
Instytut Naukowo-Wydawniczy "SPATIUM"
Tematy:
mikroglony
biomasa
biogaz
microalgae
biomass
biogas
Opis:
Obecnie podkreślany jest znaczący potencjał biomasy jako źródła energii odnawialnej. Jednym z bardzo wydajnych źródeł biomasy jest biomasa mikroglonów. Mikroglony charakteryzują się wysoką efektywność fotosyntetyczną, co przekłada się na szybką produkcję biomasy. Do hodowli mikroglonów można wykorzystywać ścieki oraz gazy spalinowe. Mikroglony postrzegane są jako potencjalni producenci ciekłych i gazowych biopaliw. Wykorzystanie biomasy mikroglonów do produkcji, nie emitujących zanieczyszczeń biopaliw stanowi intensywnie rozwijającą się dziedzinę nauki.
Currently, the considerable potential of biomass as a source of renewable energy has been increasingly emphasized. Microalgae are characterized by high photosynthetic efficiency, which is reflected in rapid production of biomass. Sewage and exhausts can be used in microalgal culture. Microalgae are regarded as potential producers of liquid and gaseous biofuels. The use of microalgal biomass for production of modern, non-polluting biofuels has become an intensively developing scientific discipline.
Źródło:
Autobusy : technika, eksploatacja, systemy transportowe; 2012, 13, 10; 229-231
1509-5878
2450-7725
Pojawia się w:
Autobusy : technika, eksploatacja, systemy transportowe
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ripened cheese as a source of bioactive peptides
Autorzy:
Skwarek, A.
Darewicz, M.
Borawska-Dziadkiewicz, J.
Powiązania:
https://bibliotekanauki.pl/articles/410385.pdf
Data publikacji:
2018
Wydawca:
Politechnika Łódzka. Wydawnictwo Politechniki Łódzkiej
Tematy:
bovine milk
milk protein
cheese
bioactive peptides
mleko krowie
proteiny mleczne
ser
bioaktywne peptydy
Opis:
Cheese has a long history in the human diet. In ancient times, cheese was primarily a concentrated form of milk with the benefit of a prolonged shelf life. Recent advances in nutrition science have highlighted the contribution of cheese to nutrition and health. It is a rich source of essential nutrients, in particular, proteins, vitamins, minerals, and also short chain fatty acids. Bioactive peptides from proteins, which are the main subject of this paper, can be generated either by fermentation processes during cheese-manufacturing or by gastrointestinal digestion after consumption. As cheese is a complex food matrix containing a large number of different peptides which change with the ripening time, they are produced during secondary proteolysis through the action of proteinases and peptidases. As long as they are bound in the proteins they are biologically inactive andcan only be active after they have been released from their parent protein. Then, they can exert a wide range of biological activities such as antimicrobial, opioid, blood pressure-lowering, cholesterol-lowering, mineral binding, immunomodulating, and anti-carcinogenic activities. The article discusses the characteristics of cheese, distinguishing it as an important source of bioactive peptides with various activities. Bioavailability of bioactive peptides from cheese was described. The blood-pressure lowering activity was highlighted as milk proteins are the main source of this kind of bioactive peptides, and it is the best-studied and in vivoconfirmed effect. Attention has also been paid to three other activities expressed by bioactive peptides from cheese: anti-carcinogenic, antioxidative, and opioid.
Źródło:
Biotechnology and Food Science; 2018, 82, 1; 49-60
2084-0136
2299-6818
Pojawia się w:
Biotechnology and Food Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Hops as a source of biologically active compounds
Autorzy:
Przybyś, Marcin
Skomra, Urszula
Powiązania:
https://bibliotekanauki.pl/articles/2148099.pdf
Data publikacji:
2020-12-30
Wydawca:
Instytut Uprawy Nawożenia i Gleboznawstwa – Państwowy Instytut Badawczy
Tematy:
hop
biological activities
antioxidative effects
anti-microbial effects
anticarcinogenic effects
Opis:
In recent years, hop, commonly known as the plant used for the production of beer, has attracted increasing interest in the pharmaceutical and cosmetic industries. Secondary me-tabolites found in hop, such as bitter acids, polyphenols or essen-tial oils, exhibit anti-cancer, anti-inflammatory and antibacterial properties. Moreover, numerous studies confirm estrogenic activ-ity, the ability to lower blood glucose levels and sedative effects of the plant. The paper discusses secondary metabolites in hops divided into groups depending on their chemical structure. Ad-ditionally, the biological activity of the metabolites is presented herein. The prospects of using hops for purposes other than brew-ing are also demonstrated.
Źródło:
Polish Journal of Agronomy; 2020, 43; 83-102
2081-2787
Pojawia się w:
Polish Journal of Agronomy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Utilization of halophytes as a source of organic manure
Autorzy:
Ayyappan, D.
Ravindran, K.C.
Powiązania:
https://bibliotekanauki.pl/articles/11367.pdf
Data publikacji:
2014
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
utilization
halophyte
source
organic manure
compost
farmyard manure
vermicompost
Suaeda maritima
Opis:
Organic farming is a holistic production management system that promotes and enhances environmental quality including biodiversity, bio-geo-chemical cycles and soil floral and faunal activities. One of the energy resources developed during recent years are the application of organic sources such as biogas slurry, blue green algae, compost, green manure farmyard manure, vermicompost and seaweed liquid fertilizer. During decomposition, these organic manures yield many organic compounds and organic acids as well as antibiotic substances as an intermediate product. Mangrove/Halophytes forest has an important ecological and socio economic value to man. In India, Tamil Nadu has a coastline of 950 km. Extensive mangrove wetlands are located in Pichavaram of Cuddalore district and Muthupet of Thanjavur district. It is reported that the nutrient values of halophytes were higher when compared to green manures (glycophytes). The objective of the present study is to highlight the efficacy of halophytic compost which are normally available in coastal areas on growth and yield parameters in pulse varieties. Various combinations of halophytic composts used, Suaeda compost + farmyard manure + phosphate solubilising bacteria treatment showed an increased in biomass and yield, number of root nodules and microbial activities when compared other halophytic compost and control. This study shows the feasibility of using halophytic composts in the coastal area to improve soil fertility and productivity.
Źródło:
International Letters of Natural Sciences; 2014, 12, 2
2300-9675
Pojawia się w:
International Letters of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Negative Refraction as a Source of Some Pedagogical Problems
Autorzy:
Veselago, V.
Powiązania:
https://bibliotekanauki.pl/articles/1814051.pdf
Data publikacji:
2007-11
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
78.20.Ci
41.20.Jb
Opis:
The appearance of material with negative values of dielectric and magnetic permeabilities ε and μ and with negative index of refraction n forces to revise the accustomed forms of some well-known formulae of electrodynamics. This is connected with fact, that these correlations in repressing majority of sources is written in tacit suggestion that magnetic permeability of most of materials is μ=1, factor of refraction n=ε and is undoubtedly executed the correlation n > 0. Such approach could be named as "nonmagnetic". However, if n <0, this nonmagnetic approach can bring very hard mistakes.
Źródło:
Acta Physica Polonica A; 2007, 112, 5; 777-781
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Islamic State as a source of terrorist threats
Autorzy:
Elak, Leszek
Powiązania:
https://bibliotekanauki.pl/articles/2124287.pdf
Data publikacji:
2022
Wydawca:
Towarzystwo Wiedzy Obronnej
Tematy:
Islamic State
ISIS
terrorism
terrorist threat
Państwo Islamskie
terroryzm
zagrożenie terrorystyczne
Opis:
The article presents the Islamic State as a source of terrorist threats. In the eyes of ISIS fighters, the Western world is tantamount to moral corruption, and the lack of any values. By its actions, ISIS aims at pushing the followers of other religions out of the areas defined in the prophecies in the name of cleansing the world from evil. The author analyzes the activity of Islamic extremists in the context of the great wave of migration to Europe from the Middle East region. This phenomenon influenced changes in the international security environment, especially in the European Union countries. The author shows how ISIS, using ideology, pushes Islamic fundamentalists to prepare terrorist attacks. Combating such threats poses major challenges for anti-terrorist services.
Źródło:
Wiedza Obronna; 2022, 1; 71--87
0209-0031
2658-0829
Pojawia się w:
Wiedza Obronna
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Real estate management as a source of commune income
Autorzy:
Śpiewak-Szyjka, Monika
Bera, Milena
Zaremba, Aneta
Powiązania:
https://bibliotekanauki.pl/articles/2033085.pdf
Data publikacji:
2020
Wydawca:
Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
Tematy:
communal real estate
income
expenses
Polska
nieruchomości gminne
dochód
wydatki
Polska
Opis:
Introduction/background: Rational and effective management of public real estate is necessary for the proper functioning of this entity, as well as for the implementation of public tasks. Moreover, real estate stock is an important source of income. In order to find this out, it is necessary to analyze the state of a commune’s real estate resources, focused on the implementation of specific goals such as: public investments and implementation of technical infrastructure devices. Aim of the paper: The aim of this publication was to assess the role and significance of the share of income from real estate in the total income of the Szczecin City Commune; therefore, the research focused mainly on this income group. To fully illustrate the essence of the share of income from real estate, other sources of income of the audited entity are presented. Materials and methods: A study of the measurement and evaluation of the phenomenon of changes over time was carried out on the basis of an analysis of the income dynamics of the Commune of Szczecin, with particular emphasis on the sources of income, as well as being broken down into budget classification sections. Moreover, in order to determine the changes taking place in the structure and level of the studied phenomenon over time, the dynamics indicators with a constant basis were calculated. Results and conclusions: The conducted research has shown that real estate resources are an important source of income for the commune, and the most important of them is the real estate tax. The budget revenues from this source amounted on average to over PLN 240 million. In the years 2017-2019, the budgetary income of the commune had a growing tendency, and its value was, respectively: PLN 2,157 million, PLN 2,289 million and PLN 2,639 million. The structure of the commune’s income in the analyzed period shows a stable tendency and did not undergo major changes. The dominant item in the category of current income was the share in the income tax from natural persons and legal persons (share at an average level of approximately 28%).
Źródło:
Organizacja i Zarządzanie : kwartalnik naukowy; 2020, nr 4; 147-158
1899-6116
Pojawia się w:
Organizacja i Zarządzanie : kwartalnik naukowy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Coreopsis tinctoria Nutt. as a source of many colours
Autorzy:
Schmidt-Przewoźna, K.
Morales Villavicencio, A.
Kicińska-Jakubowska, A.
Zajączek, K.
Brandys, A.
Powiązania:
https://bibliotekanauki.pl/articles/2048951.pdf
Data publikacji:
2019
Wydawca:
Instytut Włókien Naturalnych i Roślin Zielarskich
Tematy:
Coreopsis tinctoria Nutt.
sheep wool
natural dyeing
mordants
medicinal properties
wełna owcza
naturalne barwienie
właściwości lecznicze
Opis:
Introduction: Coreopsis tinctoria Nutt. is an annual plant with small flowers in yellow and claret. In dyeing process, a whole range of colours can be obtained using various methods. Objective: The aim of the study was to present a wide range of colors of the little-known plant C. tinctoria. and its health promoting properties. Methods: In our research, we selected 3 types of wool: Polish Merino, Żelaźnieńska, and Polish Lowland Sheep and compared the colours obtained on these wools using 6 dyeing methods. Results: The results indicate that the basic colour of wool influences the intensity of colour after dyeing as well as the type of the used mordant, which determines the obtained colour. A whole range of very intense colours was obtained from very small flowers of C. tinctoria. Conclusions: Flowers are a very good and efficient raw material that gives intense colors on wool. An additional advantage is the plant's health-promoting properties. The plant is still little explored in this respect.
Źródło:
Herba Polonica; 2019, 65, 4; 56-61
0018-0599
Pojawia się w:
Herba Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ground as a source of heat for heat pumps
Autorzy:
Matysko, R.
Powiązania:
https://bibliotekanauki.pl/articles/95309.pdf
Data publikacji:
2018
Wydawca:
Politechnika Koszalińska. Wydawnictwo Uczelniane
Tematy:
heat pump
ground heat exchanger
transient behavior
ground regeneration
pompa ciepła
wymiennik ciepła gruntowy
stan nieustalony
regeneracja gruntu
Opis:
Heat pumps are an ideal solution for use in newly built passive and energy-plus buildings. One of the many problems present in such construction is the choice of the operational parameters of the lower heat source and the selection of a ground regeneration system which would enable effective regeneration in a short period of time and at a minimal cost. This article presents the heat analysis of the ground from which heat is obtained for heating purposes. The author also analyses ground heating, as the heat is delivered to it via regeneration systems. The presented in article results allow us to estimate the ground's thermal states based on lowered ambient temperature and the possible use of a lower heat pump source regeneration process. The original contribution in article is the calculation results of the ground behavior at the transient regeneration and heat consumption realized by the heat pump system.
Źródło:
Journal of Mechanical and Energy Engineering; 2018, 2, 2; 131-137
2544-0780
2544-1671
Pojawia się w:
Journal of Mechanical and Energy Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
X pinch as a source for X-ray radiography
Autorzy:
Pikuz, S.
Shelkovenko, T.
Romanova, V.
Sinars, D.
Hammer, D.
Bland, S.
Lebedev, S.
Powiązania:
https://bibliotekanauki.pl/articles/147532.pdf
Data publikacji:
2001
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
wire array
X-pinch
X-ray imaging
X-ray radiography
Z-pinch
Opis:
This article describes several applications and methods using the X pinch as a source of X-ray radiation for the radiography of dense plasma objects. These methods, in general, do not use pinholes, and instead take the advantage of the small size (<1 mm, and in some cases <3 mm) and a short X-ray emission duration (<1 ns) of the radiation source produced by an X pinch. Two of these methods, monochromatic and direct point-projection backlighting, are discussed. Experimental images of exploding wires and wire arrays obtained on the BIN, XP, and MAGPIE generators using these techniques are presented. Also included are detailed measurements made on the XP generator of the emission characteristics of X pinches using different wire materials.
Źródło:
Nukleonika; 2001, 46, 1; 21-25
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Vegetable as a source of carotenoids
Warzywa jako źródło karotenoidów
Autorzy:
Bogacz-Radomska, L.
Harasym, J.
Powiązania:
https://bibliotekanauki.pl/articles/5443.pdf
Data publikacji:
2016
Wydawca:
Wydawnictwo Uniwersytetu Ekonomicznego we Wrocławiu
Tematy:
vegetable
carotenoid source
lycopene
bioavailability
carotenoid
market
Opis:
Plants are rich and still unexploited sources of bioactive compounds, attractive for their therapeutic properties and as the raw material for the formulation of pharmaceutical and food products. The colour of the plants, especially comestibles as vegetables or fruits, results from chemical compounds whose metabolic activity is the aim of many studies nowadays. The carotenoids, a group of organic compounds with an unsaturated skeleton of hydrocarbons, results in the colours of yellow, orange and red. Having antioxidant activity and, for some of them, being the precursors to vitamin A in the animal organisms are willingly used in very different medical applications. The article describes the current state of knowledge regarding the types and quantities of carotenoids in vegetables, the advancement of knowledge of their metabolic impact, their possible applications in medicine, as well as the desired directions for further research. Also, the scope of their industrial use and the prospects of carotenoids’ market development are included. This work is carried out in the framework of the COST Action – EUROCAROTEN CA15136, with the aim of the exchange and development of knowledge between European researchers working on carotenoids.
Rośliny są bogatymi i wciąż niewykorzystanymi źródłami związków bioaktywnych, atrakcyjnymi ze względu na swoje właściwości terapeutyczne i stanowiącymi surowiec do tworzenia produktów farmaceutycznych i spożywczych. Kolor roślin, zwłaszcza produktów spożywczych, takich jak warzywa czy owoce, wynika z obecności związków chemicznych, których aktywności metaboliczne są obecnie celem wielu badań. Karotenoidy – grupa organicznych związków o nienasyconym szkielecie węglowodorów – powoduje barwy żółtą, pomarańczową i czerwoną. Mają aktywność przeciwutleniającą, a niektóre z nich, będąc prekursorami witaminy A w organizmach zwierzęcych, są chętnie stosowane w medycynie. W artykule przedstawiono obecny stan wiedzy na temat rodzajów i ilości karotenoidów w warzywach, postęp wiedzy na temat ich wpływu metabolicznego, możliwych zastosowań w medycynie, a także pożądanych kierunków dalszych badań. Ponadto omówiono ich wykorzystanie przemysłowe oraz perspektywy rozwoju rynku karotenoidów. Praca ta jest prowadzona w ramach działania COST – EUROCAROTEN CA15136, mającego na celu wymianę i rozwój wiedzy między europejskimi badaczami zajmującymi się karotenoidami.
Źródło:
Nauki Inżynierskie i Technologie; 2016, 4(23)
2449-9773
2080-5985
Pojawia się w:
Nauki Inżynierskie i Technologie
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Digital media as a source of transformations in family relations
Autorzy:
Irena, Pylipiak,
Powiązania:
https://bibliotekanauki.pl/articles/894002.pdf
Data publikacji:
2020-01-27
Wydawca:
Akademia Pedagogiki Specjalnej im. Marii Grzegorzewskiej. Wydawnictwo APS
Tematy:
digital media
digital environment
Internet
smartphone
Opis:
The article shows the role of digital media in everyday human life and its infl uence on the formation of attitudes and behaviors. Attention was paid to the special role played by the widespread use of modern communication technologies in family relationships. It was emphasized how the relations between parents and children changed as a result of the rapidly growing technique of mobile phones and their latest version in the form of smartphones. Thanks to smartphones, there is possible an universal access to the Internet, which is both asource of information as well as allows to use different instant messengers for communication. This broadly understood access to the digital environment has a very positive meaning in our everyday life, unfortunately it also carries some threats resulting primarily from uncritical use of Internet resources. The article also contains results of the author’s own statistical research on the impact of the Internet on family relationshipscarried out by the author in the Ivano-Frankivsk region of Ukraine.
Źródło:
Problemy Opiekuńczo-Wychowawcze; 2018, 574(9); 45-53
0552-2188
Pojawia się w:
Problemy Opiekuńczo-Wychowawcze
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Soils of Buffer Zones as a Source of Nitrogen Compounds
Autorzy:
Krasowska, Małgorzata
Powiązania:
https://bibliotekanauki.pl/articles/123243.pdf
Data publikacji:
2019
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
buffer zone
nitrogen
soil
agricultural catchment
Opis:
A buffer zone is a belt of shelter or permanent grassland separating the agricultural land from watercourses and water reservoirs. According to the Code of Good Agricultural Practices, they constitute a landscape element that can limit the migration of biogenic substances. Increasing attention is paid to the fact that these barriers are effective during the growing season. However, in the autumn-winter and early-spring half-year, they can be a source of nitrogen compounds leached from the catchment to the surface water. In connection with this, research was undertaken to assess the content of nitrogen compounds in the soil of the zone at the channel and water of the watercourse in a small agricultural catchment. The processes occurring in the buffer zones leading to the release of biogenic compounds do not only concern leaching them to surface and groundwater; therefore, the amount of nitrous oxide emissions, which is the result of the denitrification process occurring in the soil, was examined. On the basis of the obtained results, it was found that an increased content of nitrogen compounds in the soil of buffer zones may have an impact on the elevated emission of N2O and a raised content of these substances in surface water.
Źródło:
Journal of Ecological Engineering; 2019, 20, 1; 214-219
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ship as a source of the sea pollution with oil
Autorzy:
Stelmaszewski, A.
Otremba, Z.
Powiązania:
https://bibliotekanauki.pl/articles/247988.pdf
Data publikacji:
2012
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
maritime transport
seawater
petroleum
environmental protection
Gulf of Gdansk
Opis:
The subject of marine vessel as a source of the sea pollution was taken because of very adverse impact of petroleum pollutants on the natural environment. Oil pollutions concern especially marine environment. However, petroleum inflows to the sea from many different sources, exploitation of the fleet are one of the significant causes of oil presence in the marine environment. MARPOL Convention requires the states parties thereto to monitor the state of contamination [3] and this is a second reason of taking this subject. During the past years, several tests of petroleum content in the Gulf of Gdansk were made by the Physics Department of Gdynia Maritime University. In total 115 samples of water were collected and analyzed during the period from 2004 to 2009 year in the Gulf of Gdansk, which is an area of intense ships traffic because of two great complexes of harbours located in Gdansk and in Gdynia. These tests were carried out with the help of Institute of Oceanology Polish Academy of Sciences during cruises of the r.v. “Oceania”. Petroleum concentration in seawater was determined by means of improved fluorescence method. Oil in water concentration ranged from value below of the detection limit, that is 10–9 (less than 1 ppb), up to 3.5ź10–7 (350 ppb). Average concentration of oil was 4.3ź10–8 (43 ppb). Obtained results confirmed that Vistula River could be a source of petroleum pollution of the Gulf of Gdansk. Apart from this, vessels are the significant sources of oil in the seawater too. The most polluted places were founded in the area where ships crossed the Gulf of Gdansk.
Źródło:
Journal of KONES; 2012, 19, 1; 385-389
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Polifenole - źródło naturalnych przeciwutleniaczy
Polyphenols - a source of natural antioxidants
Autorzy:
Sadowska, A.
Świderski, F.
Kromołowska, R.
Powiązania:
https://bibliotekanauki.pl/articles/227512.pdf
Data publikacji:
2011
Wydawca:
Wyższa Szkoła Menedżerska w Warszawie
Tematy:
polifenole
flawonoidy
aktywność przeciwutleniająca
polyphenols
flavonoids
antioxidant activity
Opis:
W artykule omówiono charakterystykę związków fenolowych, ich podział, budowę a także występowanie w surowcach żywnościowych. Przedstawiono również znaczenie polifenoli w kształtowaniu jakości żywności oraz ich funkcję jako przeciwutleniaczy.
This article discusses the characteristics of phenolic compounds, their distribution, structure and occurrence in food products. Also the importance of polyphenols in shaping the quality of food and their role as antioxidants is here shown.
Źródło:
Postępy Techniki Przetwórstwa Spożywczego; 2011, 1; 108-111
0867-793X
2719-3691
Pojawia się w:
Postępy Techniki Przetwórstwa Spożywczego
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An OH&S Management System as a Source of Information
Autorzy:
Ejdys, J.
Lulewicz-Sas, A.
Powiązania:
https://bibliotekanauki.pl/articles/90419.pdf
Data publikacji:
2010
Wydawca:
Centralny Instytut Ochrony Pracy
Tematy:
OH&S management system
data and information
adaptation of system
Opis:
The concept of an occupational health and safety management system (OH&S MS) has become widespread over the past 20 years. However, there are few studies on the subject, they are generally methodologically weak and in many cases cannot be generalized. A formalized OH&S MS is a set of rules and connected elements of the general organization management system which guarantees accomplishment of the organizationʼs objectives in the area of upgrading safety conditions of both employees and the environment. The need for research on voluntary management systems stems from the necessity to propagate appropriate solutions and their continuous development processes. This paper discusses an OH&S MS as a source of data and essential information on the process of developing a system. It examines the relationship between the degree to which the requirements of Standard No. PN-N-18001:2004 have been adapted and the demand for health and safety data and information.
Źródło:
International Journal of Occupational Safety and Ergonomics; 2010, 16, 4; 445-454
1080-3548
Pojawia się w:
International Journal of Occupational Safety and Ergonomics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Innovative Suppliers as a Source of Risk for Manufacturing Companies
Autorzy:
Kisperska-Moroń, Danuta
Klosa, Edyta
Powiązania:
https://bibliotekanauki.pl/articles/503662.pdf
Data publikacji:
2012
Wydawca:
Międzynarodowa Wyższa Szkoła Logistyki i Transportu
Tematy:
supply chain
suppliers
innovative suppliers
innovation
risk
Opis:
In dynamic supply networks, based on large degree of outsourcing, risk is increasing. In literature many different sources of risk for supply chain management were discussed. Even though there is a rich stream of literature investi-gating risk in supply chains, there has been little research applied to the precise risk that exists with inbound supply at manufacturing companies1. Manufacturers often outsource portions of their operations as a result of “make-or-buy” decisions, having it based on different reasons. In that case research in risk and its management deals with the level of inter-organizational relationships2. External suppliers represent diversified levels of innovations concerning their products and/or technologies; they are often classified as “innovative suppliers”3. Certain degree of innovation was clearly identified as a source of risk and uncertainty in supply chains4. Also the relationships between manufacturers and their suppliers may be based on partnerships or they may demonstrate more opportunistic behavior of engaged parties. The purpose of the research presented in this paper is to analyze the problem of impact of innovative suppliers on technological and behavioral risk in manufacturers’ supply chains.
Źródło:
Logistics and Transport; 2012, 14, 1; 61-72
1734-2015
Pojawia się w:
Logistics and Transport
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Cyberspace as a source of dehumanization of the human being
Autorzy:
Pieczywok, Andrzej
Powiązania:
https://bibliotekanauki.pl/articles/13946801.pdf
Data publikacji:
2023-02-20
Wydawca:
Akademia Sztuki Wojennej
Tematy:
cyberspace
cybersecurity
institutional threats
personal threats
risk
Opis:
The paper points to an important sphere of human safety, as it refers to cyberspace as an environment where information is exchanged via the net and computer systems. In addition to positive accents, cyberspace also creates various threats that lead to the dehumanization of life. The negative effects of being in cyberspace cause threats to mental, social and healthy lives. Very often they pose a danger not only to human health but also to human life. In addition to the introduction, the article includes characteristics of the loss of a sense of reality among people who use cyberspace excessively and the risks of medical hazards.
Źródło:
Cybersecurity and Law; 2023, 9, 1; 40-47
2658-1493
Pojawia się w:
Cybersecurity and Law
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The language as a source of knowledge about individual differences
Autorzy:
Gorbaniuk, Oleg
Ivanova, Ana
Powiązania:
https://bibliotekanauki.pl/articles/703584.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
psycho-lexical study
exploratory research
individual differences
personality
image
Opis:
According to the psycho-lexical approach in the taxonomy of individual differences, those interpersonal differences, which are the most important for social functioning of individual, have been encoded into natural languages. Therefore by analyzing the lexicons of interpersonal differences, it is possible to identify structures of their descriptions. Application of the psycho-lexical approach in the field of psychology of individual differences lead to obtaining the relatively high consistency regarding scientific taxonomy of personality traits. Also models developed on this basis meet the most important criteria of goodness of the psychological structural models. As a result, the accumulation of knowledge about person’s psychological functioning have been intensified. The aim of the article is to present the specificity of lexical studies and their taxonomical potential for social sciences, as well as key threats and limitations, based on experience of previous psycho-lexical research.
Źródło:
Nauka; 2018, 4
1231-8515
Pojawia się w:
Nauka
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Crowdfunding as a source for start-up financing in Poland
Autorzy:
Sieradzka, Katarzyna
Powiązania:
https://bibliotekanauki.pl/articles/1929125.pdf
Data publikacji:
2020
Wydawca:
Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
Tematy:
crowdfunding
financing
start-up
innovative projects
finansowanie społecznościowe
finansowanie
innowacyjne projekty
Opis:
Purpose: Introduce the concept of crowdfunding, its essence and assumptions, as well as determine its role and significance in financing start-up activities in Poland. Design/methodology/approach: For the purpose of attaining the objective and demonstrating hypotheses, data and information contained in papers and reports by Polish and European institutions and organisations like European Start-up Monitor 2015, 2016, 2018, Polskie startupy 2015, 2016, 2017, 2018, 2019 (Start-up Poland Foundation) are analysed and specialist literature is reviewed. Findings: Sources of financing of start-up activities in Europe and Poland are identified. Alternative sources of financing for innovative business activities are indicated, together with the significance of crowdfunding as a source of capital for start-ups. Originality/value: The paper addresses the important issue of social financing, a present-day source of financing for innovative projects. Knowledge about the role and significance of this form of financing for development of start-ups in Poland is scant. Alternative sources of start-up financing are explored and the role of crowdfunding in this respect is indicated.
Źródło:
Zeszyty Naukowe. Organizacja i Zarządzanie / Politechnika Śląska; 2020, 147; 247-258
1641-3466
Pojawia się w:
Zeszyty Naukowe. Organizacja i Zarządzanie / Politechnika Śląska
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wastewater a Source of Nutrients for Crops Growth and Development
Autorzy:
Tymchuk, Ivan
Shkvirko, Oksana
Sakalova, Halyna
Malovanyy, Myroslav
Dabizhuk, Tetiana
Shevchuk, Oksana
Matviichuk, Oleksandr
Vasylinych, Tamara
Powiązania:
https://bibliotekanauki.pl/articles/125111.pdf
Data publikacji:
2020
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
wastewater
struvite
sewage sludge
bioindication
substrate
Opis:
The article deals with the main methods of nutrient removal from wastewater, as well as presents promising technologies and techniques. Struvite was characterized by a complex phosphorus fertilizer. The influence of struvite on the processes of germination of cultivated plants was investigated. The possibility of creating a growth substrate as an inexpensive and effective alternative to the disposal of the man-made wastes that contain an organic component was identified. The composition of the growth substrate was selected to ensure its functional properties. The growth substrate was tested by bioindication. Subsequently, the modification of the substrate by adding natural sorbents.
Źródło:
Journal of Ecological Engineering; 2020, 21, 5; 88-96
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Label on food packages as a source of nutrition information
Autorzy:
Ozimek, I.
Jezowska-Zychowicz, M.
Powiązania:
https://bibliotekanauki.pl/articles/1372534.pdf
Data publikacji:
1996
Wydawca:
Instytut Rozrodu Zwierząt i Badań Żywności Polskiej Akademii Nauk w Olsztynie
Tematy:
nutrition labelling
consumer
behaviour
nutrition information zob.dietary information
dietary information
label
nutrition education
food package
consumption economics
Opis:
The purposes of this questionnaire study were to determine: (1) the availability of information about food product, (2) the contribution of label information to the purchase decision, and (3) the claims for the content of label information. The survey was conducted with a national sample of 1000 adults in 1994. The information available on food package was indicated by the respondents to be generally insufficient. The expiration date, price and composition were considered the most important information, and energy value the least important information for the placement on a food package. The food label was not used as an important source of nutritional information. This study shows the necessity of intensive education of the Polish society to more effective use of the label information on food packages.
Wybór żywności dokonywany przez konsumenta na rynku jest uwarunkowany wieloma czynnikami, w tym dużą rolę odgrywa wiedza o produkcie. Jednym z możliwych sposobów dostarczania konsumentowi informacji o produkcie żywnościowym jest etykieta zamieszczona na jego opakowaniu. Celem podjętego badania empirycznego, będącego podstawą tego artykułu, było: 1) określenie dostępności informacji o produkcie spożywczym, 2) ocena udziału informacji zawartej na etykiecie w podejmowaniu decyzji o zakupie, 3) ustalenie opinii na temat potrzeby zamieszczania informacji na opakowaniu produktu spożywczego. Badanie zrealizowano wśród 1000 osób reprezentujących różne środowiska zamieszkania. Zdaniem uczestników badania informacja rynkowa o produkcie spożywczym jest niewystarczająca (rys. 1). Jako najistotniejsze informacje, które powinny być zamieszczone na etykiecie produktu spożywczego uznano termin przydatności do spożycia, cenę i skład produktu (tab. 2). Zawarta na opakowaniach produktów żywnościowych informacja jest wykorzystywana w różnym stopniu w podejmowaniu decyzji o zakupie. Wśród nich — również najistotniejsza jest informacja o terminie przydatności do spożycia oraz cena (tab. 3). Należy podkreślić, iż w warunkach polskich etykieta żywnościowa nie jest w dalszym ciągu postrzegana jako ważne źródło informacji żywieniowej. Korzystanie z informacji żywieniowej jest uwarunkowane umiejętnością jej przetwarzania. Stąd też w celu efektywniejszego wykorzystania przez konsumentów informacji zawartych na opakowaniach produktów spożywczych, należy prowadzić intensywną edukację społeczeństwa w zakresie żywienia.
Źródło:
Polish Journal of Food and Nutrition Sciences; 1996, 05, 3; 131-140
1230-0322
2083-6007
Pojawia się w:
Polish Journal of Food and Nutrition Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ryba maslana zrodlem niacyny
Butterfish as a source of niacin
Autorzy:
Lebiedzinska, A
Majewski, M.
Szefer, P.
Powiązania:
https://bibliotekanauki.pl/articles/875796.pdf
Data publikacji:
2008
Wydawca:
Narodowy Instytut Zdrowia Publicznego. Państwowy Zakład Higieny
Tematy:
ryby
eskolar
Lepidocybium flavobrunneum
mieso ryb
walory zywieniowe
niacyna
oznaczanie
metody mikrobiologiczne
hydroliza enzymatyczna
fish
escolar
fish meat
nutritional value
niacin
determination
microbiological method
enzymatic hydrolysis
Opis:
Stosując metodę mikrobiologiczną w połączeniu z hydrolizą enzymatyczną, oznaczono zawartość niacyny w produktach z ryby maślanej. Przebadane ryby charakteryzowały się wysoką zawartością analizowanej witaminy. Badane produkty rybne (porcja 100 g) mogą być potencjalnie dobrym źródłem niacyny realizując normy dziennego zapotrzebowania w zakresie od 27 do 43% dla kobiet i od 25 do 39% dla mężczyzn.
The present study provides information about the concentrations of niacin in butterfish products. The concentrations of vitamin were determined by microbiological analytical methods. The results demonstrate that the analyzed fish were a good source of niacin. Butterfish can provide the human organism with contents of niacin corresponding to 27 - 43% for female and 25 - 39% for male of RDA.
Źródło:
Roczniki Państwowego Zakładu Higieny; 2008, 59, 2; 197-201
0035-7715
Pojawia się w:
Roczniki Państwowego Zakładu Higieny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
ENC as a source of hydrographic data for paper maps
Autorzy:
Jankiewicz, Marek.
Naus, Krzysztof.
Powiązania:
Zeszyty Naukowe Akademia Marynarki Wojennej im. Bohaterów Westerplatte, 2006, nr 166K/1, s. 169-173
Data publikacji:
2006
Tematy:
Międzynarodowa Konferencja Naukowo-Techniczna nt.: Rola nawigacji w zabezpieczeniu działalości ludzkiej na morzu (15; 2006; Gdynia, woj. pomorskie)
Nawigacja morska materiały konferencyjne
Bezpieczeństwo życia na morzu materiały konferencyjne
Opis:
Rys.; Bibliogr.; Abstr., streszcz.
Dostawca treści:
Bibliografia CBW
Artykuł
Tytuł:
Pragmatic marker tu as a source of implicature in Kiswahili
Autorzy:
Kibiki, Magreth J.
Pawlik, Jacek Jan
Różański, Jarosław
Powiązania:
https://bibliotekanauki.pl/chapters/31233271.pdf
Data publikacji:
2023-10-27
Wydawca:
Uniwersytet Warszawski. Wydawnictwa Uniwersytetu Warszawskiego
Tematy:
pragmatic markers
spoken Kiswahili
implicature theory
Opis:
This study examines the pragmatic marker tu as a source of implicature in Kiswahili. The natural observation method was used to collect data from Kiswahili speakers in their normal daily conversations, which was then analyzed using Grice’s (1975) implicature theory. It was observed that the pragmatic marker tu conveys various implicatures depending on the context of use. These include expressing inadequacy or insufficiency, signaling dissatisfaction, showing contempt, inevitability and simplicity. Interestingly, the findings of the study also showed that intonation plays a role in determining the implicature invoked by this marker.
Źródło:
Language, Culture, Literature Intertwined. The Swahili Perspective; 117-136
9788323561996
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Detection of a Source Code Plagiarism in a Student Programming Competition
Autorzy:
Gniazdowski, Zenon
Boniecki, Maciej
Powiązania:
https://bibliotekanauki.pl/articles/91298.pdf
Data publikacji:
2019
Wydawca:
Warszawska Wyższa Szkoła Informatyki
Tematy:
source code plagiarism
Levenshtein distance
Levenshtein similarity
similarity relation
propensity to plagiarism
Opis:
The article presents a system for testing the independence of solutions to algorithmic problems sent by students as part of the student programming competition. First, the context was discussed, as well as the need to organize programming competitions resulting from this context. Then, an algorithm was proposed to study the mutual similarity of source codes of programs sent as part of a programming competition. Since, after implementation, the algorithm was used in practice, examples of its application for detecting the plagiarism of source codes of solutions in two programming competitions conducted as part ofmclasses on Algorithms and Numerical Methods were also presented. Finally, the effectiveness of the solutions used in the work was discussed.
Źródło:
Zeszyty Naukowe Warszawskiej Wyższej Szkoły Informatyki; 2019, 13, 21; 74-94
1896-396X
2082-8349
Pojawia się w:
Zeszyty Naukowe Warszawskiej Wyższej Szkoły Informatyki
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Advertising fee as a source of the commune’s own revenues
Autorzy:
Zbigniew, Ofiarski,
Powiązania:
https://bibliotekanauki.pl/articles/708605.pdf
Data publikacji:
2017
Wydawca:
Instytut Naukowo-Wydawniczy "SPATIUM"
Opis:
The advertising fee was introduced on the list of commune’s own revenues in 2015, and it has been practically collected since 2016. The commune council itself, by means of a resolution, decides to introduce this local public levy. The main elements of the legal structure of the advertising fee are specified in the Act on Local Taxes and Fees, i.e. the object of the fee, entities liable to pay the fee, the maximum fee rate for each day, the exemptions from payment. The commune council is entitled to determine the advertising fee rates for the commune, however not higher than those set out in the Act, and also to introduce additional exemptions and the conditions of its collection by the collectors. The advertising fee consists of a fixed part, which is the lump-sum amount regardless of the surface area of the advertising board or device serving for the advertisement display, and a variable component depending on the surface area of the advertising board or device serving for the advertisement display.
Źródło:
Central European Review of Economics & Finance; 2017, 20, 4; 61-79
2082-8500
2083-4314
Pojawia się w:
Central European Review of Economics & Finance
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Poultry flocks as a source of Campylobacter contamination of broiler carcasses
Autorzy:
Wieczorek, K.
Osek, J.
Powiązania:
https://bibliotekanauki.pl/articles/2087986.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Opis:
Campylobacter infection is the leading foodborne bacterial gastroenteritis worldwide and the bacteria are frequently isolated from the intestines of chickens. The broiler meat contamination with C. jejuni or C. coli may occur during slaughter processing. The aim of the study was to investigate the prevalence of Campylobacter in poultry flocks and the corresponding broiler carcasses in 15 districts (voivodeships) all over Poland. A total of 128 samples from broiler flocks and the corresponding carcasses were collected between February 2011 and April 2013. The Campylobacter isolation and species identification were performed according to ISO 10272-1 standard and with PCR. It was found that 112 flock (96.5%) were contaminated with campylobacters, either C. jejuni (77 samples; 68.7%) or C. coli (35 flocks; 31.3%). Analysis of the corresponding chicken carcasses tested after chilling revealed that 77 out of 128 (60.2%) samples were positive for Campylobacter, either C. jejuni (58; 75.3%) or C. coli (19; 24.7%). Most of the carcasses were contaminated with the same Campylobacter species as identified in the corresponding flock before slaughter. As tested by PCR, out of the 77 crops with C. jejuni 58 were positive for the same bacterial species. On the other hand, out of the remaining 35 flocks infected with C. coli, only 19 corresponding carcass samples were contaminated with C. coli. In three cases in the slaughtered flocks C. jejuni was identified but in the same carcasses C. coli was found. The opposite findings (flock positive for C. coli but the corresponding carcasses contaminated with C. jejuni) were seen in six voivodeships. It was also observed that several carcass samples were negative for C. jejuni and C. coli although the original flocks were Campylobacter-positive before slaughter (total 36 of the 77 samples; 46.7%). On the other hand, some carcasses were contaminated with Campylobacter although the flocks were negative for these bacteria (9 samples; 11.7%) which may also be due to internal contamination during slaughter of broilers.
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:
Brand As A Source Of Value For Its Buyer And Owner
Autorzy:
Taranko, Teresa
Chmielewski, Krzysztof J.
Powiązania:
https://bibliotekanauki.pl/articles/417378.pdf
Data publikacji:
2014-12-15
Wydawca:
Akademia Leona Koźmińskiego w Warszawie
Tematy:
brand
brand equity
brand building
Opis:
Purpose: This article deals with the creation of the brand and what kind of value it creates for the owner and the customer. Methodology: The article describes an insight on how to create strong brands, why many companies that based their success on a product now decide to create a branded product and how a brand adds value to both the owner of the brand as well as the customer. Findings: The article presents that brands create value for the customers as well as the company or brand owner. Furthermore, the article deals with the creation of strong brands and the underlying factors. Originality/value: This article helps to advance brand marketing theory as well as offers valuable implications and recommendations for practitioners, brand and marketing managers.
Źródło:
Management and Business Administration. Central Europe; 2014, 22, 4; 133-143
2084-3356
Pojawia się w:
Management and Business Administration. Central Europe
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Sustainable logistics as a source of competitive advantage in remote locations
Autorzy:
Helm, M. D.
Powiązania:
https://bibliotekanauki.pl/articles/2140955.pdf
Data publikacji:
2018
Wydawca:
Fundacja Centrum Badań Socjologicznych
Tematy:
sustainability
logistics
remote locations
sources of competitive advantage
Opis:
Governments, corporations, and other organizations are expanding further into remote locations, such as polar regions, space, and other relatively inaccessible areas with minimal development. However, with this increased interest in remote areas, there is a shortage of scholarly work to draw upon for operating in these regions. Therefore, this presents an opportunity to fill an academic gap, and the article asks, ‘How can sustainability be a source of competitive advantage for logistics in remote locations?’ To explore this question and to serve as a resource for future researchers, the article defines key terms, utilizes an interdisciplinary framework by integrating the academic disciplines of business and sustainability, and supplies a detailed literature review. From this groundwork, the article follows a qualitative methodology whereby three hypotheses emerge. The research results offer that sustainability can be a source of competitive advantage for logistics in remote locations by: sustainable logistics innovation; reducing, reusing, and recycling; and optimizing supply networks. Finally, the article closes with a discussion and summary, by recognizing research limitations and by contributing recommendations for future dialogue and research.
Źródło:
Journal of Sustainable Development of Transport and Logistics; 2018, 3, 3; 6-26
2520-2979
Pojawia się w:
Journal of Sustainable Development of Transport and Logistics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Precedents as a Source of Land Law in Poland’s Past
Autorzy:
Lesiński, Bogdan
Powiązania:
https://bibliotekanauki.pl/articles/1832025.pdf
Data publikacji:
2019-09-15
Wydawca:
Uniwersytet im. Adama Mickiewicza w Poznaniu
Tematy:
history of law
precedents
Polish land law
Opis:
The paper is an English translation of Prejudykaty jako źródło prawa ziemskiego w dawnej Polsce by Bogdan Lesiński published originally in “Czasopismo Prawno-Historyczne” from 1990. The text is published as a part of a jubilee edition of the “Adam Mickiewicz University Law Review. 100th Anniversary of the Faculty of Law and Administration” devoted to the achievements of the late Professors of the Faculty of Law and Administration of the Adam Mickiewicz University, Poznań.
Źródło:
Adam Mickiewicz University Law Review; 2019, 10; 191-245
2450-0976
Pojawia się w:
Adam Mickiewicz University Law Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Intercultural communication as a source of professional competences for innovative activity
Autorzy:
Tereshchenko, Maryna
Powiązania:
https://bibliotekanauki.pl/articles/469969.pdf
Data publikacji:
2016-09-01
Wydawca:
Wyższa Szkoła Gospodarki Euroregionalnej im. Alcide De Gasperi w Józefowie
Tematy:
innovation
innovative activity
intercultural communication
intercultural competence
professional competences
Opis:
Purpose – to analyze the impact of intercultural communication on the professional innovative activity, to assess the possibility of developing of the professional competencies to innovative activity through intercultural communication. Methods: hypothetical-deductive method, formalization, generalization, classification, systematization, extrapolation. Results. The bilateral relationship between intercultural communication and innovative activity is grounded. A person, who is more capable of cross-cultural communication, is more capable of innovative activity too, he / she is more opened, flexible, adaptive and creative. It is therefore important to develop, in the professional training of future specialists, the intercultural competence - the ability to cross-cultural contacts: to teach them to recognize cultural diversity not as an obstacle but as a positive diversity, as a source of new potentially useful information. For future professionals of innovative activity, it’s even more important than for others. The process of innovations’ working out often deals with problems of creating something new, of forming of new ideas. And any variety can help, because another person is a treasure trove of new points of view. Intercultural communication can be a source of new ideas, new knowledge and skills, new professional competences, as well as a new channel to promote an innovative product to different target groups.
Źródło:
Intercultural Communication; 2016, 1, 1; 8-21
2451-0998
Pojawia się w:
Intercultural Communication
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Osady molasowe źródłem mołdawitów
Molasse deposits as a source of moldavites
Autorzy:
Brachaniec, Tomasz
Szopa, Krzysztof
Szczyrba, Mirosław
Powiązania:
https://bibliotekanauki.pl/articles/1033000.pdf
Data publikacji:
2014
Wydawca:
Polskie Towarzystwo Meteorytowe
Tematy:
melting
molasse
moldavite origin
substrewnfields
tektites
Opis:
Moldavite are result of melting and mixing of ejecta Cenozoic deposits from Ries crater. The Czech moldavites have different Al, Ca and Si content in contrast to tektites from Lusatian area. Differences in chemical composition of moldavites are caused by local interbedded layers of Tertiary Obere Süâwasser Molasse, which are represented by: quartz sands and limestons with clays.
Źródło:
Acta Societatis Metheoriticae Polonorum; 2014, 5; 25-29
2080-5497
Pojawia się w:
Acta Societatis Metheoriticae Polonorum
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The organizational culture as a source of dysfunction in an organization
Autorzy:
Domagała, Olga
Powiązania:
https://bibliotekanauki.pl/articles/1178865.pdf
Data publikacji:
2017
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
culture
dysfunction
organization
organizational culture
the functions of organizational culture
Opis:
A lively and changing organizational culture can become the reason for the flourishing of an organization or be the driving force of its biggest difficulties. Therefore, as form of representation of an organization, organizational culture has to be formed intentionally as all too often it is common to encounter a dysfunctional culture in many areas. This publication attempts to look at the essence of organizational culture and the dysfunctions in organizations that result from the culture. The analyses carried out in this article are a result of the review of foreign and home literature, providing the basis for further discussions on the subject.
Źródło:
World Scientific News; 2017, 89; 32-38
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
COVID–19 as a Source of Psychosocial Hazard Related to Work
Autorzy:
Matuska, Ewa
Powiązania:
https://bibliotekanauki.pl/articles/1807819.pdf
Data publikacji:
2020-11-30
Wydawca:
Wyższa Szkoła Bezpieczeństwa Publicznego i Indywidualnego Apeiron w Krakowie
Tematy:
COVID-19
psychosocial work hazards
work safety and health
occupational stress
digital work
social deprivation
Opis:
The article deals with occupational health and safety in the context of the emergence of a new threat of COVID-19 disease. It focuses on occupational stress and organizational problems experienced by employees in the context of economic problems of companies and administrative restrictions caused by pandemic crisis situation. The research question of the article is: How do the employees adapt to the initial phase of coronavirus crisis situation in their working environment? The theoretical part of the article contains the comparative analysis of the psychosocial hazards and proposal of their classification with the reference to COVID-19 syndrome. The research part analyzes the current results of survey studies dedicated to the perception of pandemic by employees in Poland. In the conclusion the author advocates for including new psychosocial work hazards which appear in connection to COVID-19 outbreak into already existing official lists of work-related psychosocial risks. It is especially recommended in case of evaluation of occupational health and safety in flexible work and remote work models.
Źródło:
Security Dimensions; 2020, 34(34); 45-60
2353-7000
Pojawia się w:
Security Dimensions
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Climate change as a source of risk in the financial sector
Autorzy:
Kotecki, Ludwik
Powiązania:
https://bibliotekanauki.pl/articles/2052144.pdf
Data publikacji:
2019-12-31
Wydawca:
Bankowy Fundusz Gwarancyjny
Tematy:
financial sector
climate risks
physical risk
transition risk
ESG
climate initiatives in the financial sector
Opis:
The article addresses new risks in the financial sector connected with climate change. With greenhouse gas emissions, temperatures will continue to rise and thus increase the financial risk arising from the physical consequences of climate change. The prevention of such consequences will increase the financial risk of the transition to a low-carbon economy, and will lead to changes in business models, to the phenomenon of stranded assets, etc. At the same time, the growing awareness of the need to prevent further climate change and to adapt to the changes already happening intensifies the pressure of various entities and environments on the financial sector to become involved in such activities, and to run its business responsibly and in accordance with the sustainable development concept. All this opens the financial sector to new risks (in addition to the physical risk and the transition risk), in the management of which it has no experience. Both the hedging and especially the materialisation of such risks will affect the stability of the financial sector. Moreover, such new conditions in the functioning of the financial sector, caused by climate change, generate new obligations and challenges for regulators and financial supervisors.
Źródło:
Bezpieczny Bank; 2019, 77, 4; 63-80
1429-2939
Pojawia się w:
Bezpieczny Bank
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Stećak Tombstones as a Source for Research on Mediaeval Bosnian Elites
Autorzy:
Florek, Marek
Powiązania:
https://bibliotekanauki.pl/articles/28408470.pdf
Data publikacji:
2022-12-07
Wydawca:
Uniwersytet Warszawski. Wydawnictwa Uniwersytetu Warszawskiego
Tematy:
Bosnia
stećak tombstones
Middle Ages
elites
Opis:
The term stećak (pl. stećci) is used in the Bosnian, Serbian and Croatian languages to refer to mediaeval monolithic tombstones from Bosnia and Herzegovina, as well from the nearby territories of Croatia, Serbia and Montenegro. Their number is estimated at between 50,000 and almost 70,000. The earliest preserved stećci come from the 12th century, whereas the latest date to the beginning of the 16th century. Their forms vary, but most often they have the shape of a slab, vertical or horizontal monolith, or stylized cross. Some of them have images – engraved or carved in low relief – representing, e.g., weaponry, people, animals, genre scenes (hunting, fighting, dancing), various symbols and ornaments, and – very seldom – short inscriptions. In the past, they were attributed to the followers of the Bogomil heresy or the stock-breeding Vlachs, they were also regarded as original products of the mediaeval Bosnian population – created independently from external influences and models, as a sign of the revival of the traditional Slavic pagan beliefs dating back to the times of the Indo European community. According to the currently prevalent assumption, stećci – with their forms and symbols – fit the broad trend of European sepulchral art referring to the ethos of chivalry and Christianity, but at the same time they were a means used to manifest the distinctive character of the local elites and groups aspiring to be included in them. The images present on stećci – especially genre scenes and heraldic motifs – are an invaluable source of information about the culture and life of local elites in mediaeval Bosnia.
Źródło:
Światowit; 2021, 60; 113-131
0082-044X
Pojawia się w:
Światowit
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ancient Greek Rhetorical Speeches as a Source of Political Realism Idea
Autorzy:
Niemczyk, Marcin
Powiązania:
https://bibliotekanauki.pl/articles/1912847.pdf
Data publikacji:
2020
Wydawca:
Uniwersytet Marii Curie-Skłodowskiej. Wydawnictwo Uniwersytetu Marii Curie-Skłodowskiej
Tematy:
political realism
history of political and legal doctrines
ancient Greek rhetorical speeches
realizm polityczny
historia doktryn polityczno-prawnych
starożytne greckie mowy retoryczne
Opis:
From the perspective of the history of political and legal doctrines, the dichotomous way of looking at actuality through the prism of the struggle between realism and idealism is one of the classical approaches to social sciences. The basic source of knowledge for the political realism idea is the achievements of politicians, historians and philosophers, who are often at the same time creators of political and legal thought. In the research on political realism, however, one should, based on subsidiarity, also use the message found in the rhetorical speeches, recorded and preserved until today. Taking these reservations into account, the subject of the article is to analyze – in a rhetorical perspective – the classical political realism, with the simultaneous narrowing of the research field to international relations. The subject of the analysis are selected ancient Greek rhetorical speeches by authors such as Cleon, Diodotus, Pericles, Demosthenes, Andocides, Isocrates and Lysias.
Z perspektywy historii doktryn polityczno-prawnych dychotomiczny sposób spojrzenia na rzeczywistość przez pryzmat zmagań między realizmem a idealizmem stanowi jedno z klasycznych ujęć nauk społecznych. Podstawowym źródłem poznania idei realizmu politycznego jest dorobek polityków, historyków czy filozofów, którzy często znajdują się jednocześnie w gronie twórców myśli polityczno-prawnej. W badaniach nad realizmem politycznym należy jednak, na zasadzie subsydiarności, korzystać także z przekazu znajdującego się w utrwalonych i zachowanych do dzisiaj mowach retorycznych. Uwzględniając te zastrzeżenia, przedmiotem artykułu jest analiza – w retorycznej optyce – klasycznego realizmu politycznego, z jednoczesnym zawężeniem pola badawczego do stosunków międzynarodowych. Przedmiotem analizy są wybrane starożytne greckie mowy retoryczne takich autorów, jak Kleon, Diodotos, Perykles, Demostenes, Andokides, Izokrates i Lizjasz.
Źródło:
Studia Iuridica Lublinensia; 2020, 29, 5; 215-231
1731-6375
Pojawia się w:
Studia Iuridica Lublinensia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Prawo – czynnik instrumentalizacji przestrzeni
THE LAW – A SOURCE OF INSTRUMENTALIZATION OF SPACE
Autorzy:
Barełkowski, Robert
Powiązania:
https://bibliotekanauki.pl/chapters/1945328.pdf
Data publikacji:
2019
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Opis:
Obecna doktryna kształtowania ładu przestrzennego przewiduje ustalenia prawne jako wiążące dla zapewnienia postulatów zawartych w preambule do ustawy o planowaniu i zagospodarowaniu przestrzennym. Jednak krajowa praktyka w tym zakresie pokazuje, że zestawienie lakoniczności przepisów związanych z zagospodarowaniem przestrzennym, asymetria ciężaru gatunkowego przepisów pokrewnych i ich niespójność, wreszcie orzecznictwo i kuriozalne interpretacje prawa prezentowane przez organy weryfikujące często czynią wysiłek stanowienia ładu przestrzennego daremnym. Prawo z instrumentu stało się podmiotem odrzucającym cel, jaki przyświecał jego powołaniu, a więc sprzeniewierzając się pustemu dziś brzmieniu wspomnianej preambuły – próżno bowiem szukać regulacji próbującej rzeczywiście na polu prawa zmierzyć się z wymaganiami architektury i urbanistyki czy walorami architektonicznymi i krajobrazowymi. W rozdziale zostaną zaprezentowane propozycje mechanizmów na przykładzie wybranych przypadków orzecznictwa i kwestionowania zasadności prawnej rozwiązań planistycznych, zmierzające do wsparcia kształtowania zrównoważonego środowiska przestrzennego – w ujęciu krytycznym odnoszącym się i do teorii i do praktyki. By osiągnąć pełny rezultat potrzebne jest jednak rozszerzenie dyskursu poza gremia urbanistów i wypracowywanie stanowiska, odnoszącego się do ram prawnych planowania, ich jakości i celowości.
According to contemporary doctrine on establishing spatial harmony legal regulations are intended to fulfill the principles included in the preamble of the act on spatial planning and land development. The practice however indicates, that putting together laconic rules, the asymmetry of particular acts related to spatial issues, their incoherence, finally judicial decisions and grotesque interpretations, often articulated by authorities responsible for verification makes the effort of regulation of space futile. The law changed its role, and instead of being a tool it became the subject of planning. Thus, it defrauded the sense of preamble and made it void. Obviously there is no legal regulation, that would actually undertake the task to relate to architecture, urban qualities, virtues present in the landscape. In the chapter a proof of many legal flaws impeding the knowledge professional core are presented and followed by proposals of mechanisms to correct partially the processes leading to establishing the quality of our environment, referring to judicial aspects of spatial planning. It involves theoretical and practical contents in a critical approach. However, to achieve the final goal, broader activities are required and the discourse on legal framework of spatial planning and its quality and goals should be proliferated.
Źródło:
Krajobrazy Europy. Krajobraz jako wyraz idei i wartości; 99-110
9788374931069
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Biomasa - źródło cennych związków organicznych
Biomass a source of valuable organic compounds
Autorzy:
Retajczyk, J.
Wróblewska, A.
Powiązania:
https://bibliotekanauki.pl/articles/172682.pdf
Data publikacji:
2017
Wydawca:
Polskie Towarzystwo Chemiczne
Tematy:
biomasa
glukoza
glicerol
uwodornienie
kataliza
glucose
glycerol
monoterpenes
hydrogenation
catalysis
Opis:
So far, much attention was paid to processes which allow to obtain biofuels from biomass and less important was receiving from biomass valuable chemical compounds. Biomass is a source of a variety of compounds, such as: hydrocarbons, triglycerides, glycerol, hydroksymetylofurfural, cellulose, hemicellulose and pentoses, lignin and lignocellulose. Taking into account the application of the mentioned above compounds, a large number of articles describing catalytic conversion of biomass to valuable chemical compounds has been written during last 10 years. The articles presented specific types of reactions for compounds contained in biomass, such as: hydrolysis, hydrogenation or isomerization, which allow to obtain valuable products. The reactions are catalyzed among others by: metals deposited on the activated carbon, metal oxides, alloys and zeolites. Researchers still improve processes, adapting them to the structure of highly functionalized particles contained in biomass and process needs. At the same time, scientist focused on cost reduction. Renewable raw materials are converted to the intermediates in physical, chemical and physicochemical processes. Next, obtained intermediates are used for receiving valuable chemicals, such as: lubricants, solvents and products that were previously obtained from petroleum. This work presents the conversion of biomass to compounds which have been already prepared by conventional synthetic methods. Besides chemical pure compounds, catalytic reactions with using metals, lead to obtain mixtures of compounds which can be used for the large volume production: additives for paper, paints, resins, foams, surfactants, lubricants and plasticizers. In the chemical industry for many years it has been placed emphasis on processes that are environmentally friendly. Scientists have also focused on improving the activity of used catalysts and the selectivity of products.
Źródło:
Wiadomości Chemiczne; 2017, 71, 3-4; 241-262
0043-5104
2300-0295
Pojawia się w:
Wiadomości Chemiczne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Domestic fowl of ducks, a source of faecal bioactive Enterococcus hirae strains
Autorzy:
Lauková, A.
Bino, E.
Ščerbová, J.
Powiązania:
https://bibliotekanauki.pl/articles/2087472.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
ducks
Enterococcus hirae
mass spectrometry
PCR
bioactivity
properties
Źródło:
Polish Journal of Veterinary Sciences; 2019, 3; 505-512
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł

Ta witryna wykorzystuje pliki cookies do przechowywania informacji na Twoim komputerze. Pliki cookies stosujemy w celu świadczenia usług na najwyższym poziomie, w tym w sposób dostosowany do indywidualnych potrzeb. Korzystanie z witryny bez zmiany ustawień dotyczących cookies oznacza, że będą one zamieszczane w Twoim komputerze. W każdym momencie możesz dokonać zmiany ustawień dotyczących cookies