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Wyszukujesz frazę "life cycle" wg kryterium: Temat


Tytuł:
Clinical and Radiological Differences in Patients Following Traumatic SCI at Different Ages
Autorzy:
Mendonça, Thalia Saraiva
de Arruda Andrade, Vitor Dias
Nogarotto Cembraneli, Pedro
de Faria Cavalcante, Julia Brasileiro
Rocha, André Salotto
Tognola, Waldir Antonio
Morais, Dionei de Freitas
de Melo-Neto, João Simão
Powiązania:
https://bibliotekanauki.pl/articles/28409361.pdf
Data publikacji:
2021-08-21
Wydawca:
Fundacja Edukacji Medycznej, Promocji Zdrowia, Sztuki i Kultury Ars Medica
Tematy:
life cycle stages
stage
life cycle
spinal cord injuries
spinal cord trauma
Opis:
Background. Traumatic spinal cord injury (SCI) is a lesion that can affect several spinal structures, including the vertebrae, spinal cord, ligaments, and other adjacent parts of the spine. Traumatic spinal cord injury (SCI) can cause functional changes in patients of different ages. Material and methods. The study aims to determine whether there are social, clinical, and radiological differences between young, middle-aged, and elderly adults with SCI caused by a ground-level fall. This retrospective study analyzed the records of patients with a clinical diagnosis of SCI. It enrolled patients with traumatic spinal cord injury after a ground-level fall divided as follows: young aged adults 18–35 years of age (G1); middle-aged adults aged 36–60 years (G2); and elderly adults aged over 60 years (G3). Their clinical, social, and radiological variables were analyzed. Results. It is observed that low schooling level, being widowed, and being a homemaker were more frequently encountered among elderly adults, whereas being single was more common in middle-aged adults. The morphologic diagnosis of compression fracture and the associated injury of facial trauma occurred more frequently in elderly adults, with an increasing tendency with age. Conservative therapeutic management was most commonly encountered in elderly adults, compared to surgery from a posterior approach in middle-aged adults. Listhesis was better identified in middle-aged adults by computed tomography (CT). Spinal cord contusion and injury to the C1 vertebra were demonstrated in young adults by magnetic resonance imaging (MRI). Conclusions. 1. Elderly adults with low education level, widowed, and homemakers were more susceptible to SCI caused by a fall. 2. Single marital status was more frequently noted in young adults. 3. The most frequent clinical aspects were the morphological aspect of compression fracture and facial trauma as an associated injury in elderly adults, with the occurrence of facial trauma increasing with age. 4. Conservative therapeutic management was more common in elderly adults than surgery from a posterior approach in middle-aged adults. 5. Regarding the radiological aspects of CT, listhesis was better identified in middle-aged adults. Spinal cord contusions and C1 vertebra lesions were better identified in young adults by MRI.
Źródło:
Ortopedia Traumatologia Rehabilitacja; 2021, 23(4); 305-314
1509-3492
2084-4336
Pojawia się w:
Ortopedia Traumatologia Rehabilitacja
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Types of vitellocytes and vitellogenesis in the Cestoda in relation to different types of embryonic development, ovoviviparity and life cycles
Autorzy:
Swiderski, Z.
Xylander, W.E.R.
Powiązania:
https://bibliotekanauki.pl/articles/839318.pdf
Data publikacji:
1998
Wydawca:
Polskie Towarzystwo Parazytologiczne
Tematy:
Cestoda
life cycle
ovoviviparity
embryogenesis
vitellogenesis
Źródło:
Annals of Parasitology; 1998, 44, 3
0043-5163
Pojawia się w:
Annals of Parasitology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Rodzina – wspólnota konfliktowych interesów
Family as a Community of Conflicting Interests
Autorzy:
Poleszczuk, Jan
Powiązania:
https://bibliotekanauki.pl/articles/952072.pdf
Data publikacji:
2014
Wydawca:
Uniwersytet w Białymstoku. Wydawnictwo Uniwersytetu w Białymstoku
Tematy:
family
life cycle
social stratification
reproduction
Opis:
The article presents four perspectives on the family. In the intergenerational perspective a family is an institution of biological and cultural reproduction. Family in the perspective of the life cycle is a dynamically changing structure of “problems to solve” associated with life cycle: socialization, mating, parenting and post reproductive phase. Each phase substantially changes the structure of interests, available resources and the nature of social relationships. Family in the system of social stratification is associated with the distribution of scarce resources. The family as a system of social interaction is a complex dynamic unit which stabilizes the basic structure of the moral code (attitudes of loyalty and trust).
Źródło:
Pogranicze. Studia Społeczne; 2014, 24; 13-27
1230-2392
Pojawia się w:
Pogranicze. Studia Społeczne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Simulation of the Impact of Waste Batteries on Ecosystem Reliability
Autorzy:
Petrov, Oleksandr
Pohrebennyk, Volodymyr
Shybanova, Alla
Ruda, Mariia
Powiązania:
https://bibliotekanauki.pl/articles/1818471.pdf
Data publikacji:
2020
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
batteries
life cycle
modeling
ecosystem
reliability
Opis:
To assess the impact of not just the battery as such but its multi-element composition on the state of the environment, a new approach is proposed through the determination of the reliability of ecosystems, which makes it possible to obtain quantitative indexes of the stability and losses of natural ecosystems. These data can be used as indicators of the state of the environment, and hence as the assessment of an environmental component that is important for determining the actual impact of the multi-element composition of batteries. On the basis of such indicators, which can be obtained using the SimaPro software, it is possible to calculate thresholds beyond which negative phenomena occur, as well as to predict and simulate situations, to carry out the mapping of sources of risks, to monitor changes, and this will allow identifying the causes of these changes or determining the factors that slow down or retard the approach of ecosystems to a critical state, i.e. to develop preventive measures to avoid disasters. The eco-indicator 99 is one of the methods that allows us to accept one estimate for the whole product - the so-called ecological index. It is the sum of all individual eco-points or partial indexes for all life-cycle processes. The computational procedure is carried out by summing up the results of weighing the phases of the life cycle.
Źródło:
Decision Making in Manufacturing and Services; 2020, 14, 1; 81--90
1896-8325
2300-7087
Pojawia się w:
Decision Making in Manufacturing and Services
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A Model of Firm Growth
Autorzy:
Leśko, Dariusz
Powiązania:
https://bibliotekanauki.pl/articles/574429.pdf
Data publikacji:
2011-12-31
Wydawca:
Szkoła Główna Handlowa w Warszawie. Kolegium Analiz Ekonomicznych
Tematy:
firm
theory
growth
size
life cycle
Opis:
International statistics show that small firms are the dominant form of business enterprise today. Yet, despite ongoing research into the theory of the firm, there is still no common view on the mechanisms of firm growth. This article aims to stimulate further theoretical and empirical research into firm growth. In the first part of the paper, the author reviews the most seminal theories of the growth of the firm to date, noting that there are two broadly perceived schools of thought within the analysed field. The first approach advocates a more or less stochastic pattern of firm growth. The second research school holds that the resources at the firm’s disposal are the differentiators, drivers of, but also limits to, firm growth. In the second part of the paper, based on the literature review and deduction, the author develops an alternative model of firm growth. Building on the properties of the Markovian processes, he shows that it may be because of the seemingly rational behaviour of firm incumbents that most firms do not grow in size beyond some satisfying level. The proposed model of firm growth is equally applicable to firms of all sizes operating in all industries and markets.
Źródło:
Gospodarka Narodowa. The Polish Journal of Economics; 2011, 252, 11-12; 31-45
2300-5238
Pojawia się w:
Gospodarka Narodowa. The Polish Journal of Economics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Life cycle analysis with regard to environmental impact of apple wholesale packaging
Autorzy:
Manteuffel Szoege, H.
Sobolewska, A.
Powiązania:
https://bibliotekanauki.pl/articles/572073.pdf
Data publikacji:
2009
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
Tematy:
life cycle
analysis
environmental impact
apple
packaging
plastic box
cardboard box
life cycle assessment
wholesale market
Polska
Opis:
A comparison between cardboard and plastic boxes for apple packaging in the wholesale and retail trade has been drawn using the SimaPro programme for life cycle analysis. The environmental impact of using plastic cases was estimated much lower, mainly thanks to their repeated use.
Źródło:
Zeszyty Naukowe Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie. Problemy Rolnictwa Światowego; 2009, 06(21)
2081-6960
Pojawia się w:
Zeszyty Naukowe Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie. Problemy Rolnictwa Światowego
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Possibilities of reducing greenhouse gas emissions in agriculture on the example of a biogas plant
Autorzy:
Samson-Bręk, Izabela Agata
Matuszewska, Anna
Powiązania:
https://bibliotekanauki.pl/articles/263244.pdf
Data publikacji:
2019
Wydawca:
Sieć Badawcza Łukasiewicz. Przemysłowy Instytut Motoryzacji
Tematy:
biogas
biomethane
GHG emission
life cycle
agriculture
Opis:
The subject of this publication is to determine the impact of biogas plants on the environment, with particular emphasis on greenhouse gasses emissions associated with the production and management of biogas as the main plant product. The environmental impact of the agricultural sector as well as the state of development of the biogas market in European Union are presented as background for consideration of greenhouse gas emissions. One of the economy sectors responsible for GHG emissions is agriculture. One of the solutions of GHG reduction in agriculture is slurry management using biogas technology. It should be emphasized, that biogas not always has favorable emission parameters. The final emission throughout the whole life cycle of this energy carrier depends on many factors. The structure of GHG emissions largely depends on what type of raw material it used for biogas production and in what kind of tanks the digestate sludge is stored. If waste raw materials are used for biogas production, then GHG emission associated with their acquisition is assumed to be zero. On the other hand, if dedicated energy crops are used for biogas production, the emission connected with cultivation of these plants are added to the total GHG emissions. They are directly related to the use of fertilizers and plant protection products, field emissions of nitrous oxide and fuel combustion during the operation of agricultural machinery. Influence on the GHG emission has also the kind id digestate storage tank. If these are closed tanks, there is no emissions to the atmosphere. If tank is open, then methane is emitted directly to the air and is included in the total GHG balance.
Źródło:
Archiwum Motoryzacji; 2019, 86, 4; 127-142
1234-754X
2084-476X
Pojawia się w:
Archiwum Motoryzacji
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ludzie luźni w społeczeństwie Rzeczypospolitej szlacheckiej w kontekście badań nad cyklem życia
Autorzy:
Poniat, Radosław
Powiązania:
https://bibliotekanauki.pl/articles/949952.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Instytut Historii im. Tadeusza Manteuffla PAN w Warszawie
Tematy:
social mobility
life cycle
estates society
vagabonds
Opis:
Vagabonds in the society of the Polish Nobles’ Commonwealth in the context of studies on life cycles (Summary)The purpose of the article is to present a new interpretation of the role played by vagabonds in the society of the Polish Nobles’ Commonwealth divided into estates. The proposed approach on the one hand bases on studies concerning the functioning of socially marginalized people in early modern France and Poland, with which Western historiographers are acquainted, and on the other on a new analysis of Polish source materials mainly relating to the times of Stanisław August Poniatowski. The article is divided into four parts, the first of which presents the output of Polish historiography on the topic of vagabonds. The results of studies describing groups similar to people who were not classified as belonging to any estate and had no permanent home (vagabonds) in Western societies are presented in the second part. The last section contains new findings which undermine some of the universal opinions of Polish historiographers. The last part presents conclusions which indicate greater social mobility than had been previously assumed and the significance of vagabonds in the functioning of the labour market.
Źródło:
Roczniki Dziejów Społecznych i Gospodarczych; 2013, 73
0080-3634
Pojawia się w:
Roczniki Dziejów Społecznych i Gospodarczych
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The results of parasitological investigations of Cyprinidae fishes in the middle region of West Siberia
Autorzy:
Strugova, A.S.
Powiązania:
https://bibliotekanauki.pl/articles/837852.pdf
Data publikacji:
1998
Wydawca:
Polskie Towarzystwo Parazytologiczne
Tematy:
parasite
fish
life cycle
Siberia
metacercaria
Cyprinidae
Źródło:
Annals of Parasitology; 1998, 44, 3
0043-5163
Pojawia się w:
Annals of Parasitology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Mechanical modelling and life cycle optimisation of screen printing
Modelowanie mechaniczne i optymalizacja żywotności siatki w technologii druku sitowego obwodów mikroelektronicznych
Autorzy:
Horvath, E.
Harsanyi, G.
Henap, G.
Torok, A.
Powiązania:
https://bibliotekanauki.pl/articles/281666.pdf
Data publikacji:
2012
Wydawca:
Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
Tematy:
screen printing
FEM
thick film
life cycle
Opis:
The application of thick film pastes and adhesives is a screen printing method in the mass production of thick films and low temperature co-fired ceramic circuits. During this process, the paste is printed by a rubber squeegee onto the surface of the substrate through a stainless steel metal screen masked by photolithographic emulsion. We consider the off-contact screen printing method in this paper, because it is now the standard printing method in the microelectronics industry. In our research a Finite Element Model (FEM) was created in ANSYS Multiphysics software to investigate screen deformation and to reduce stress in the screen in order to extend its life cycle. An individual deformation measuring setup was designed to validate the FEM model of the screen. By modification of geometric parameters of the squeegee, the maximal and the average stress in the screen can be reduced. Furthermore, tension of the screen decreases in its life cycle, which results in worse printing quality. The compensation of this reducing tension and the modified shape of the squeegee are described in this paper. Using this approach, the life cycle of the screen could be extended by decreased mechanical stress and optimised off-contact.
Upowszechnioną na skalę masową metodę nakładania warstw klejów i materiałów adhezyjnych w technologii grubowarstwowej oraz niskotemperaturowo współspiekanych obwodów drukowanych na płytkach ceramicznych jest druk sitowy. Za pomocą tej technologii, substancja klejąca nakładana jest na powierzchnię substratu gumowym raklem, przeciskającym klej przez siatkę wykonaną ze stali nierdzewnej pokrytej emulsją fotolitograficzną. W pracy omówiono bezstykową wersję sitodruku, ponieważ jest ona obecnie standardową techniką stosowaną w przemyśle mikroelektronicznym. W prezentowanej pracy wygenerowano w systemie ANSYS model elementów skończonych badanej siatki do określenia jej odkształceń i oceny możliwości ograniczenia poziomu naprężeń pod kątem zwiększenia żywotności. Opracowano i wytworzono indywidualną aparaturę pomiarową do weryfikacji stanu odkształcenia obliczonego modelem MES. W wyniku badań stwierdzono, że zaproponowana modyfikacja geometrii rakla pozwala obniżyć maksymalne i średnie naprężenia w siatce. Obserwowanym zjawiskiem jest także stopniowa utrata napięcia siatki w trakcie normalnej eksploatacji, co prowadzi do pogorszenia jakości sitodruku. Zmodyfikowany kształt rakla kompensuje ten efekt i wydłuża żywotność siatki poprzez obniżenie wartości naprężeń i zoptymalizowanie parametrów geometrycznych druku bezstykowego.
Źródło:
Journal of Theoretical and Applied Mechanics; 2012, 50, 4; 1025-1036
1429-2955
Pojawia się w:
Journal of Theoretical and Applied Mechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Life cycle approach-based methods - overview, applications and implementation barriers
Autorzy:
Baran, Jolanta
Powiązania:
https://bibliotekanauki.pl/articles/321832.pdf
Data publikacji:
2019
Wydawca:
Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
Tematy:
cykl życia
ocena cyklu życia
ekonomia cyrkularna
ślad ekologiczny
life cycle
life cycle assessment
LCA
circular economy
ecological footprint
Opis:
Companies operating in the circular economy face the challenge of inclusion parameters related to the life cycle of products in the area of decision-making and communication with the stakeholders. At the same time, life cycle approach-based methods, including LCA, carbon footprint, and environmental footprint, are dynamically developed. The purpose of this article is to recognize the possibilities and applications, as well as barriers to the implementation of three group of methods - life cycle assessment, carbon footprint and environmental footprint.
Źródło:
Zeszyty Naukowe. Organizacja i Zarządzanie / Politechnika Śląska; 2019, 136; 9-23
1641-3466
Pojawia się w:
Zeszyty Naukowe. Organizacja i Zarządzanie / Politechnika Śląska
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
LIFE CYCLE INCOME OF WOMEN AND MEN IN POLAND
Autorzy:
Liberda, Barbara
Pęczkowski, Marek
Powiązania:
https://bibliotekanauki.pl/articles/453077.pdf
Data publikacji:
2014
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Katedra Ekonometrii i Statystyki
Tematy:
gender
income
life cycle
married
cohabited
couple
Polska
Opis:
We examine the contribution of married and cohabited women and men to the joint income of the couple. We use individual income data from Household Budget Surveys for Poland in 2011 from a sample of 16,538 married and cohabited couples. The results of analysis show that contribution of men to total household income is higher than contribution of their female partners through the life cycle, controlling for type of a couple, education levels of genders and number of children. The contribution of married and cohabited women to total income of the couple remains almost flat during the life cycle.
Źródło:
Metody Ilościowe w Badaniach Ekonomicznych; 2014, 15, 1; 76-91
2082-792X
Pojawia się w:
Metody Ilościowe w Badaniach Ekonomicznych
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Application of the building in formation modelling (BIM) for bridge structures
Wykorzystanie modelowania informacyjnego (BIM) w trakcie cyklu życia obiektów mostowych
Autorzy:
Moshynskyi, V.
Trach, R.
Striletskyi, P.
Powiązania:
https://bibliotekanauki.pl/articles/2084129.pdf
Data publikacji:
2021
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
Tematy:
information modelling
BIM
construction project
bridge
life cycle
Opis:
After the concept of knowledge management had been firstly applied in construction projects, scholars began to discuss how to manage knowledge in specific projects, taking into account problems associated with the specifics of the construction industry. An important component of a modern knowledge management system are systems which pay special attention to information technology (IT). The IT system is designed to search, collect, store, classify, transfer and reuse information and knowledge and enables collaboration, knowledge sharing and best practices. An example of the use of an IT system in construction is the introduction of computer methods of information modelling (BIM) into practice at all stages of a construction cycle. This article investigates basics of the concept of information modelling in construction and analyses the practical application of this concept in the bridge construction. The advantages arising from the use of BIM at different stages of the life cycle of the bridge object have been systematized.
Źródło:
Acta Scientiarum Polonorum. Architectura; 2021, 20, 4; 3-9
1644-0633
Pojawia się w:
Acta Scientiarum Polonorum. Architectura
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Using LCA method to describe logistic system of fuel
Autorzy:
Haller, P.
Jankowski, A.
Jaworska, E.
Kardasz, P.
Markowska, K.
Wróbel, R.
Powiązania:
https://bibliotekanauki.pl/articles/245154.pdf
Data publikacji:
2015
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
logistic system
LCA method
fuel efficiency
life cycle
Opis:
This paper presents the life cycle of the fuel with the use of LCA. This method is taken from the management theory allows to describe and predict the impact of production processes, transport and use of fuels on the environment. The aim of the study is to compare the energy consumption of the test fuels (diesel, a blend of rapeseed oil and butyl alcohol) in the process of their production. The results indicate that most energy is consumed during the processing of crude oil. This process produced a large quantity of sulphur oxides. Very energy intensive (53,859 GJ per 10 k litres of fuel produced) part of the production is rape culture. This is due to the long working hours of agricultural tractors and combines. In this process, are secreted large amounts of exhaust gas: CO (2.664 kg), NOx (23.31 kg). Inter alia, environmental life cycle assessment, schematic structure of the LCA, the energy balance of the life cycle of diesel oil, the energy balance of the life cycle of rape oil mixed with butyl alcohol, the balance of raw material sourcing, the balance of the materials necessary to production of a mixture of rape oil and butanol alcohol are presented in the paper.
Źródło:
Journal of KONES; 2015, 22, 3; 293-299
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł

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