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Wyświetlanie 1-15 z 1242
Tytuł:
249 Conference Release from the Polish National Conference under the Honorary Patronage of the Minister of Health on “Occupational Safety for Nurses and Midwives”, September 10-11, 2018, Warsaw, Poland
Autorzy:
Mazurkiewicz, D.W.
Olejnik, B.
Koniecko, K.
Piechocka, D.I.
Sawka, J.H.
Strzelecka, J.
Powiązania:
https://bibliotekanauki.pl/articles/1918774.pdf
Data publikacji:
2018
Wydawca:
Uniwersytet Medyczny w Białymstoku
Tematy:
Aggression
occupational safety
bullying
chronic fatigue
mental and health disorders
Opis:
The National Council of Nurses and Midwives organized the Polish National Conference under the Honorary Patronage of the Minister ofHealth on “Occupational Safety for Nurses and Midwives,” held in Warsaw on September 10 –11, 2018. The main issues that were addressed concerned the following: Mental and health disorders in shift work; Aggression towards nurses and midwives; The effect of shift work on nurses’ health and functioning; Occupational biological hazards and risk of exposure to biological materials for nurses and midwives; Occupational causes and injuries for nurses and midwives; Occupational ergonomics for nurses and midwives.
Źródło:
Progress in Health Sciences; 2018, 8(2); 249-252
2083-1617
Pojawia się w:
Progress in Health Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
3,4-Bis(4'-nitrofurazan-3'-yl)furoxan: a Melt Cast Powerful Explosive and a Valuable Building Block in 1,2,5-Oxadiazole Chemistry
Autorzy:
Stepanov, A. I.
Dashko, D. V.
Astrat'ev, A. A.
Powiązania:
https://bibliotekanauki.pl/articles/358174.pdf
Data publikacji:
2012
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Przemysłu Organicznego
Tematy:
3,4-bis(4'-nitrofurazan-3'-yl)furoxan
furazan
furoxan
1,2,5-oxadiazole
azepine
Opis:
The results of our studies on the reactivity of 3,4-bis(4'-nitrofurazan-3'- yl)furoxan (BNFF), with some O- and N-nucleophiles are presented. It is shown that both nitro groups of BNFF can be easily replaced by nucleophiles. Depending on the identity of the nucleophile, BNFF may be transformed into two types of 1,2,5-oxadiazole derivatives, notably 4-R substituted bis(4-R-furazan-3-yl) furoxanes or 7-R substituted 7H(7R)-tris[1,2,5]oxadiazolo[3,4-b:3',4-d:3",4"-f]]azepine-1-oxides - a new heterocyclic system comprised of an azepine ring annelated with three 1,2,5-oxadiazole rings.
Źródło:
Central European Journal of Energetic Materials; 2012, 9, 4; 329-342
1733-7178
Pojawia się w:
Central European Journal of Energetic Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
5-hydroxymethylfurfural content in selected gluten- and gluten-free cereal food products
Autorzy:
Mańkowska, D.
Majak, I.
Bartos, A.
Słowianek, M.
Łącka, A.
Leszczyńska, J.
Powiązania:
https://bibliotekanauki.pl/articles/410440.pdf
Data publikacji:
2017
Wydawca:
Politechnika Łódzka. Wydawnictwo Politechniki Łódzkiej
Tematy:
5-hydroxymethylfurfural
gluten
gluten-free products
breakfast cereals
bakery products
hydroksymetylofurfural
produkty bezglutenowe
płatki śniadaniowe
wyroby piekarnicze
Opis:
5-Hydroxymethylfurfural (HMF) was determined with HPLC method in forty one food samples, including gluten-free, breakfast cereals and bakery products. The highest concentration of HMF was found in wheat bread with cranberries (210 mg kg-1) and in breakfast cereals – honey wheat loops (85.099 mg kg-1). In contrast, wholegrain oatmeal and gluten-free sponge cakes had the lowest HMF level of all tested samples, below the detection limit and 0.485 mg kg-1, respectively. In most cases, lack of gluten coincided with the lowest HMF content readings (average 8.488 mg kg-1). The impact of the type of sugar, especially glucose, on the HMF concentration in food is apparent. Sweetened breakfast cereals, with the average content of HMF at 25.55 mg kg-1, took lead over dietary products (8.488 mg kg-1) and bakery products (18.395 mg kg-1), with the exception for wheat bread with cranberries. These cereals contained glucose or glucose-fructose syrup.
Źródło:
Biotechnology and Food Science; 2017, 81, 1; 11-21
2084-0136
2299-6818
Pojawia się w:
Biotechnology and Food Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A comparative analysis of plant growth- -promoting traits of Pseudomonas and Bacillus strains isolated from Lolium perenne rhizospheric soil in Vojvodina (Serbia) and their effect on the plant yield
Autorzy:
Stamenov, D.R.
Hajnal-Jafari, Y.I.
Najvirt, B.
Anđelković, S.
Tomić, J.
Đurić, S.S.
Powiązania:
https://bibliotekanauki.pl/articles/12713377.pdf
Data publikacji:
2020
Wydawca:
Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
Opis:
The objective of this work was to do a comparative study of Pseudomonas and Bacillus isolates for their plant growth-promoting (PGP) potential, monitoring the impact of selected isolates on the yield of English ryegrass (Lolium perenne). Isolation, physiological and biochemical characterization, in vitro assay of enzymatic and plant-growth promoting activities of isolates were done. Pseudomonas isolates have been shown to have the ability to use different sources of carbon, to live in the condition of low pH as well as temperature and to produce siderophore. On the other hand, Bacillus isolates have the ability to solubilize phosphate, to produce a greater amount of indol-3-acetic acid (IAA) than Pseudomonas isolates and have an inhibitory effect on the growth of phytopathogenic fungi. In other investigated traits, isolates were similar. The use of Pseudomonas sp. P12 and Bacillus sp. B1 isolates had a positive effect on the plant mass and total yield, which indicate that the use of these isolates can result in a better yield of forage crops.
Źródło:
Acta Scientiarum Polonorum. Hortorum Cultus; 2020, 19, 3; 37-45
1644-0692
Pojawia się w:
Acta Scientiarum Polonorum. Hortorum Cultus
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A concept for biological valuation in the marine environment
Autorzy:
Derous, S.
Agardy, T.
Hillewaert, H.
Hostens, K.
Jamieson, G.
Lieberknecht, L.
Mees, J.
Moulaert, I.
Olenin, S.
Paelinckx, D.
Rabaut, M.
Rachor, E.
Roff, J.
Stienen, E.W.M.
Van Der Wal, J.T.
Van Lancker, V.
Verfaillie, E.
Vincx, M.
Weslawski, J.M.
Degraer, S.
Powiązania:
https://bibliotekanauki.pl/articles/47513.pdf
Data publikacji:
2007
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
ecology
marine environment
biodiversity
biological valuation
Opis:
In order to develop management strategies for sustainable use and conservation in the marine environment, reliable and meaningful, but integrated ecological information is needed. Biological valuation maps that compile and summarize all available biological and ecological information for a study area, and that allocate an overall biological value to subzones, can be used as baseline maps for future spatial planning at sea. This paper provides a concept for marine biological valuation which is based on a literature review of existing valuation criteria and the consensus reached by a discussion group of experts.
Źródło:
Oceanologia; 2007, 49, 1
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A concept of the differentially driven three wheeled robot
Autorzy:
Kelemen, M.
Colville, D. J.
Kelemenova, T.
Virgala, I.
Mikova, L.
Powiązania:
https://bibliotekanauki.pl/articles/265703.pdf
Data publikacji:
2013
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
robot
edukacja
czujnik
mechatronika
education
wheeled locomotion
sensor
mechatronics
Opis:
The paper deals with the concept of a differentially driven three wheeled robot. The main task for the robot is to follow the navigation black line on white ground. The robot also contains anti-collision sensors for avoiding obstacles on track. Students learn how to deal with signals from sensors and how to control DC motors. Students work with the controller and develop the locomotion algorithm and can attend a competition.
Źródło:
International Journal of Applied Mechanics and Engineering; 2013, 18, 3; 687-698
1734-4492
2353-9003
Pojawia się w:
International Journal of Applied Mechanics and Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A convergent approach for the synthesis of new pyrazolyl bipyridinyl substituted coumarin derivatives as antimicrobials
Autorzy:
Bhila, V. G.
Chovatiya, Y. L.
Patel, C. V.
Giri, R. R.
Brahmbhatt, D. I.
Powiązania:
https://bibliotekanauki.pl/articles/411982.pdf
Data publikacji:
2015
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Coumarin
Bipyridine
Pyrazole
Kröhnke’s reaction
antimicrobial activity
Opis:
Some new 3-[3-(1-phenyl-3-aryl-1H-pyrazol-4-yl)acryloyl]coumarins 3a-f were synthesized (coumarin chalcones) by the condensation of various 3-acetyl coumarins 1 and appropriate 1-phenyl-3-aryl-1H-pyrazole-4-carbaldehyde 2. These coumarin chalcones 3a-f were then employed for the synthesis of pyrazolyl bipyridinyl substituted coumarins 7a-f, 8a-f, and 9a-f under Krohnke’s reaction condition. The characterization of all the synthesized compounds was carried out by elemental analysis, IR, 1H-NMR, 13C-NMR, DEPT-135 and mass spectral analysis. In addition to that, in vitro antimicrobial competency of the title compounds was assessed against selected pathogens. Compounds 3b, 3e, 7b, 8b, 8c and 9b exhibited excellent antimicrobial activity and said to be the most proficient members of the series.
Źródło:
International Letters of Chemistry, Physics and Astronomy; 2015, 40; 1-16
2299-3843
Pojawia się w:
International Letters of Chemistry, Physics and Astronomy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A database supported 3d-geometric model for computer based assessment and volumetric calculations of hard coal deposits in the donets basin; results of a joint Ukrainian-German project
Autorzy:
Juch, D.
Thomsen, A.
Spirina, O.
Karlashenko, I.
Piskovaya, T.
Ryabcev, R.
Powiązania:
https://bibliotekanauki.pl/articles/1204915.pdf
Data publikacji:
2002
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
coal deposits
database
computer 3D-modelling
Donets Basin
Opis:
In an attempt to make use of scientific potential for geological evaluation like resource management, a join German-Ukrainian project was carried out during the last four years. The aim of this project was the introduction and application in the Donets Basin of a computer based coal resources assessment method originally developed for the assessment of the German hard coal deposits and was called KVB-model. The combination and adaptation of the old conception of the KVB-model with modern graphic allows for the combination of the 3D structure plans of the seams with different attributes like seam and coal property data (thickness, ash, sulphur, metamorphism, rank), state of exposure (mining zone, prospective), gas content of coal, etc. A further extension of the system may consist of the interpretation of the rocks in addition to the seams already represented in the stratigraphic profile. This would allow the application be used for stratified geological units of any kind.
Źródło:
Polish Geological Institute Special Papers; 2002, 7; 119-124
1507-9791
Pojawia się w:
Polish Geological Institute Special Papers
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A field trial of recombinant Schistosoma japonicum paramyosin as a potential vaccine in naturally-infected water buffaloes
Autorzy:
Jiz II, M.A.L.
Mingala, C.N.
Lopez, I.F.M.
Chua, M.
Gabonada Jr., F.G.
Acosta, L.P.
Wu, H.
Kurtis, J.D.
Powiązania:
https://bibliotekanauki.pl/articles/6326.pdf
Data publikacji:
2016
Wydawca:
Polskie Towarzystwo Parazytologiczne
Opis:
The overall aims of this project are to assess the safety and immunogenicity of the Schistosoma japonicum vaccine paramyosin among water buffaloes residing in endemic areas. The study was conducted in four villages in Leyte, the Philippines, an area highly endemic for schistosomiasis japonica. One hundred and fifteen (N=115) animals provided baseline stool samples for coprologic examination, with preliminary results using FLOTAC showing a 10% prevalence of schistosomiasis. Forty-nine (N=49) animals consented to treatment with 25 mg/kg Praziquantel, and 40, 36 and 32 animals consented to the first, second and third dose of the paramyosin vaccine, respectively. The safety trial involved the first 20 animals and included skin testing, vaccination, anaphylaxis monitoring, as well as hematology and serum chemistry analysis. Skin tests revealed that only three out of 20 animals exhibited redness at the injection site, with none greater than 1 cm. None of the animals exhibited anaphylaxis, and all hematology and serum chemistry markers were within normal range or were similar to pre-vaccination levels. None of the 40 animals administered with the first dose exhibited anaphylaxis, nor any of the subsequent vaccine doses. Immunogenicity assessment of sera collected prior to every vaccination and one month after the last dose showed that the paramyosin vaccine induced robust antibody responses to all animals, as assessed by ELISA. The cytokine levels of whole blood culture supernatants will be further assessed. Our findings demonstrate that the S. japonicum paramyosin vaccine is a safe, well-tolerated and immunogenic treatment among water buffalos residing in endemic areas.
Źródło:
Annals of Parasitology; 2016, 62, 4
0043-5163
Pojawia się w:
Annals of Parasitology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A new approach of mature gas fields rehabilitation from Transylvanian Basin (Romania)
Autorzy:
Stefanescu, D.-P.
Vlasin, I.
Powiązania:
https://bibliotekanauki.pl/articles/299046.pdf
Data publikacji:
2013
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
mature gas fields rehabilitation
subsurface management of the reservoirs
incremental production
additional reserves
geological and physical model
Opis:
The mature gas fields rehabilitation represents a permanent concern of the Romgaz technical management, being considered one of the major priority of the development strategy of our company. The most part of our gas fields located in the geological unit of Transylvanian Basin are characterized by an advanced stage of exploitation, with a long production history and high cumulatives, having a current recovery factors of more than 60-70%. This status gives them the name "mature fields", or "brownfields" concepts logically associated with another notion, called "rehabilitation", also very frequently used in the world oil and gas industry. As the production decreasing became actually more obviously, due to the natural energetic decline of the reservoirs, the only viable solution to overcome this, consists in finding technical, commercial and operational best practices designed to develop incremental production and access additional reserves. This issue has preoccupied also the Romgaz technical team to implement and develop in the same time a new management strategy of this type of reservoirs, setting up a special department for designing the rehabilitation projects for our mature gas fields.
Źródło:
AGH Drilling, Oil, Gas; 2013, 30, 1; 199-207
2299-4157
2300-7052
Pojawia się w:
AGH Drilling, Oil, Gas
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A new challenge for midwives and medical doctors in time of the threat of a mass terrorist attack and a life threatening mass disaster
Autorzy:
Mazurkiewicz, D.W.
Piechocka, D.I.
Miela, R.
Koniecko, K.
Sawka, J.H.
Strzelecka, J.
Powiązania:
https://bibliotekanauki.pl/articles/1918645.pdf
Data publikacji:
2018
Wydawca:
Uniwersytet Medyczny w Białymstoku
Tematy:
life-threatening mass disaster
terrorism
maternity care
PMCD
PCD
scope of practice
Opis:
Purpose:To present the results of research and evaluation study of the legal regulations and rules directly linked and connected to midwives' scope of practice and provide a response on how the professional population of midwives can act as adequate and independent medical providers in the threat of a mass terrorist attack and/or a life-threatening mass disaster event. Materials and methods: The data derives from the Supreme Chamber of Nurses and Midwives in Poland; National Council of Nurses and Midwives in Poland; Gazette of the Republic of Poland, Journal of Laws; curriculum outlines for professional midwifery higher education in Poland; scientific literature, scientific recommendations. The qualitative research method to the data sources in 2018 were used. Results: In the event of a mass terrorist attack and/or a life-threatening mass disaster, the possibility of a pregnant, birthing or postpartum woman and her newborn obtaining proper medical attention from a midwife is questionable. Conclusions:The threat of terrorism in the European Union has grown. A new implications are necessary for policy and practice to keep midwives in their profession to provide adequate quality and quantity of health care in event of a mass terrorist attack and/or a life-threatening mass disaster. In our study we found: a terrorist threat as a gap in the teaching of obstetrics and midwifery; restricted availability of pharmacological agents for use by non-military midwives in event of a terrorist attack and/or a life-threatening mass disaster; lack of authorizations under a midwife license to perform PCD and /or PMCD.
Źródło:
Progress in Health Sciences; 2018, 8(2); 181-193
2083-1617
Pojawia się w:
Progress in Health Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A new endemic genus of eomyid rodents from the early Miocene of Japan
Autorzy:
Kimura, Y.
Tomida, Y.
Kalthoff, D.C.
Casanovas-Vilar, I.
Mors, T.
Powiązania:
https://bibliotekanauki.pl/articles/22687.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Opis:
Fossil rodents are generally scarce in the Miocene of Japan. However, as much as three taxa of eomyid rodents had been reported from the early Miocene Nakamura Formation (ca. 18.5 Ma) in Gifu Prefecture, central Japan. In this study, we revisit one of them—the small-sized taxon—and assign this material to a new genus, Japaneomys, which is so far known only from the type locality. The new genus is closely related to but distinguished from Asianeomys, which is more widely distributed in Central and East Asia, by having: (i) more bunodont cheek teeth with lower lophids, yet complete transverse lophids; (ii) two-rooted p4; (iii) anterior lobe narrower than posterior lobe on m1, correspondingly synclinid I shorter and shallower than synclinid IV; (iv) hypolophid anteriorly concave on m1. Japaneomys shows a derived but peculiar four-layered enamel microstructure with longitudinally oriented Hunter-Schreger bands, compared to three-layered microstructure in typical eomyid rodents. A phylogenetic analysis indicates that Japaneomys is more basal than Asianeomys and likely diverged in the late Oligocene when Japan was still part of the eastern margin of continental Asia, suggesting that certain small mammal populations could have undergone allopatric speciation isolated from inner-continental regions of Asia.
Źródło:
Acta Palaeontologica Polonica; 2019, 64, 2
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A new intelligentapproach in predictive maintenance of separation system
Autorzy:
Marichal, G. N.
Ávila, D.
Hernández, A.
Padrón, I.
Powiązania:
https://bibliotekanauki.pl/articles/116306.pdf
Data publikacji:
2020
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
marine fuel separators
separation system
predictive maintenance
greenhouse gas (GHG)
Fast Fourier Transformation (FFT)
genetic neuro-fuzzy system
genetic algorithm
supervised learning
Opis:
Reducing contaminant emissions is an important task of any industry, included the maritime one. In fact, in April 2018, IMO (International Maritime Organization) adopted an Initial Strategy on reduction of Greenhouse gas (GHG) emissions from ships. An essential part responsible for producing these emissions is the diesel engine. For that reason vessels include separation systems for heavy fuel oils. The purpose of this work is to improve the predictive maintenance techniques incorporating new intelligent approaches. An analysis of vibrations of this separation system was made and their characteristics were used in a Genetic Neuro-Fuzzy System in order to design an intelligent maintenance based on condition monitoring. The achieved results show that the proposed method provides an improvement since it indicates if a maintenance operation is necessary before the schedule one or if it could be possible extend the next maintenance service.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2020, 14, 2; 385-390
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A new species of Caspia Clessin et W. Dybowski, 1887 (Gastropoda: Truncatelloidea: Hydrobiidae) in the Danube of Bulgaria
Autorzy:
Boeters, H.D.
Gloer, P.
Georgiev, D.
Dedov, I.
Powiązania:
https://bibliotekanauki.pl/articles/83919.pdf
Data publikacji:
2015
Wydawca:
Uniwersytet Mikołaja Kopernika. Wydział Biologii i Ochrony Środowiska. Stowarzyszenie Malakologów Polskich
Źródło:
Folia Malacologica; 2015, 23, 3
1506-7629
Pojawia się w:
Folia Malacologica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A novel approach to thermal and mechanical stresses in a FGM cylinder with exponentially-varying properties
Autorzy:
Celebi, K.
Yarımpabuc, D.
Keles, I.
Powiązania:
https://bibliotekanauki.pl/articles/281696.pdf
Data publikacji:
2017
Wydawca:
Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
Tematy:
thermal stresses
functionally-graded materials
thick cylinder
Complementary Functions Method
Opis:
A novel approach is employed to a general solution for one-dimensional steady-state thermal and mechanical stresses in a hollow thick cylinder made of a functionally graded material (FGM). The temperature distribution is assumed to be a function of radius, with general thermal and mechanical boundary conditions on the inside and outside surfaces of the cylinder. The material properties, except Poisson’s ratio, are assumed to be exponentially-varying through the thickness. Forcing functions applied to the inner boundary are internal pressures which may be in form of steps. These conditions result in governing differential equations with variable coefficients. Analytical solutions to such equations cannot be obtained except for certain simple grading functions and pressures. Numerical approaches must be adopted to solve the problem in hand. The novelty of the present study lies in the fact that the Complementary Functions Method (CFM) is employed in the analysis. The Complementary Functions method (CFM) will be infused into the analysis to convert the problem into an initial-value problem which can be solved accurately. Benchmark solutions available in the literature are used to validate the results and to observe the convergence of the numerical solutions. The solution procedure is well-structured, simple and efficient and it can be readily applied to cylinders. It is also well suited for problems in which mechanical properties are graded.
Źródło:
Journal of Theoretical and Applied Mechanics; 2017, 55, 1; 343-351
1429-2955
Pojawia się w:
Journal of Theoretical and Applied Mechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 1242

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