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Wyszukujesz frazę "Balan, S." wg kryterium: Autor


Wyświetlanie 1-6 z 6
Tytuł:
Measures to reduce transportation greenhouse gas emissions in Romania
Badania w celu zmniejszenia emisji gazów cieplarnianych transportu w Rumunii
Autorzy:
Vasile, E.
Balan, M.
Grabara, I.
Balan, S.
Powiązania:
https://bibliotekanauki.pl/articles/404954.pdf
Data publikacji:
2012
Wydawca:
Politechnika Częstochowska
Tematy:
transport
emisja gazów cieplarnianych
redukcja emisji generowanych przez transport
greenhouse gas emissions
reducing emissions from transport
Opis:
The greenhouse gas emissions from transport have registered a severe increase over the years about 23% of carbon dioxide (CO2) emissions resulted from burning fossil fuels worldwide. In this context, it is observed the increasing need to shift to sustainable transport patterns for taking into consideration a wide-scale use of alternative energy sources (e.g. bio-fuels, biogas) and also, the investments in environmental technologies research and development etc. Romania has a national transport system situated on average level in terms of conventional standards of Europe's transport system. But, it was noted that the infrastructure of roads, railways, maritime and air transport is vulnerable in terms of extreme weather conditions. Considering the indirect effects of climate change, they are manifested by deteriorating road and rail infrastructure. The paper presents some of the measures adapted by Romania to reduce the greenhouse emissions produced by the transport sector. The adaptation of the Romanian transport sector to climate change impacts should take into account the use of technologies by focusing on increased safety standards, and ensuring continuity of services. In order to implement these measures it is increased the need to invest into designing vehicles that can withstand the adverse effects of climate change. The new transport infrastructure and means of transport should be designed, beginning with the design phase, in order to be resilient to the effects of the climate change.
Emisje gazów cieplarnianych pochodzących z transportu odnotowały silny wzrost w ciągu roku, wzrost dwutlenku węgla (CO2) o 23% wynikał ze spalania paliw kopalnych na całym świecie. W tym kontekście należy zauważyć rosnącą potrzebę przejścia do zrównoważonych modeli transportu dla uwzględnienia na szeroką skalę wykorzystania alternatywnych źródeł energii (np. biopaliwa, biogaz), a także inwestycji w zakresie badań środowiska, technologii i rozwoju itp. Rumunia posiada krajowy system transportowy który znajduje się na średnim poziomie w zakresie konwencjonalnych standardów europejskiego systemu transportu. Ale zauważono, że infrastruktura dróg, linii kolejowych, transportu morskiego i lotniczego jest podatna na działania ekstremalnych warunków pogodowych. Biorąc pod uwagę pośrednie skutki zmian klimatu, manifestują się one drogą pogarszającej infrastruktury kolejowej. Przedstawiono niektóre z działań dostosowanych przez Rumunię do zmniejszenia emisji gazów cieplarnianych pochodzących z sektora transportu. Dostosowanie sektora transportowego do rumuńskiego skutków zmian klimatu powinny uwzględniać wykorzystanie technologii poprzez skupienie się na zwiększenie standardów bezpieczeństwa i zapewnienia ciągłości usług. W celu wykonania tych środków jest zwiększona konieczność inwestowania w projektowanie pojazdów, które mogą wytrzymać niekorzystne skutki zmian klimatycznych. Nowa infrastruktura transportowa i środki transportu powinny być zaprojektowane, począwszy od fazy projektowania, aby być odporne na skutki zmian klimatycznych.
Źródło:
Polish Journal of Management Studies; 2012, 6; 215-223
2081-7452
Pojawia się w:
Polish Journal of Management Studies
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Activity-travel patterns of workers and students: a study from Calicut city, India
Autorzy:
Babu, D.
Balan, S.
Anjaneyulu, M. V. L. R.
Powiązania:
https://bibliotekanauki.pl/articles/223746.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
travel
travelers behaviours
workers
students
activity-based
developing country
podróż
zachowania podróżnych
pracownicy
studenci
aktywność
kraje rozwijające się
Opis:
Travel behaviour studies in activity-based perspective treat travel as a result of individual’s desire to participate in different activities. This approach is more significant in the context of developing countries, as the transportation problems are more severe here. Since, commuters contribute to a major share in the travel, understanding their travel behaviour is essential. This paper aims to explore the travel behaviour of commuters in Calicut city, Kerala State, India and thereby model their activity-travel patterns. Household, personal and activity-travel information from 12920 working people and 9684 students formed the database for this study. The data collection was performed by means of home-interview survey by face-to-face interview technique. From preliminary analysis, several simple and complex tours were identified for the study area. Working people’s work participation and students’ education activity participation decision are modelled as mandatory activity participation choice in a binary logit modelling framework. Results of this mandatory activity participation model revealed that male workers are more likely to engage in work compared to females. Presence of elderly persons is found to negatively influence the work participation decisions of workers. This may be due to the fact that, work activity may be partially or completely replaced with the medical requirements of the elderly. The chances for work activity participation increase with increase in number of two-wheelers at home. In the case of students, as the education level increases, they are found to be less likely to participate in education activities. Students are observed to follow simple activity-travel pattern. Complex tours are found to be performed by males, compared to females. Activity-travel pattern of the study group are predicted using the developed models. The percentages correctly predicted indicate reasonably good predictability for the models. These kind of studies are expected to help the town planners to better understand city’s travel behaviour and thus to formulate well-organised travel demand management policies.
Źródło:
Archives of Transport; 2018, 46, 2; 21-32
0866-9546
2300-8830
Pojawia się w:
Archives of Transport
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
In vivo immuno - and angiomodulatory effects of Aloe arborescens folii recentis extractum siccum (AAES) in mice
Autorzy:
Zdanowski, R.
Bałan, B.J.
Schonknecht, K.
Skopiński, P.
Stelmasiak, M.
Skopińska-Różewska, E.
Lewicki, S.
Powiązania:
https://bibliotekanauki.pl/articles/2049078.pdf
Data publikacji:
2020
Wydawca:
Instytut Włókien Naturalnych i Roślin Zielarskich
Tematy:
Aloe arborescens
herbal medicinal product
Biostymina preparation
Phytopharm Kleka
water extract
antibody response
angiogenesis
mice
mouse
wyciąg wodny z Aloe arborescens
myszy
splenocyty
angiogeneza (test LIA)
proliferacja komórek (PHA)
produkcja przeciwciał
Opis:
Introduction: AAES is a powdered form of Biostymina, herbal medicinal product of Phytopharm Klęka S.A., a water extract of Aloe arborescens Mill. leaves. Aloe arborescens Mill. (woody aloe, tree-like aloe) is known to have several traditional medicinal properties including anti-inflammatory, immunomodulatory, antiviral and antimicrobial activity. Objective: The aim of this work was to study the in vivo effect of AAES on cellular (leukocyte-induced cutaneous angiogenesis, LIA test, and proliferative response to PHA) and humoral (anti-SRBC antibody response)immunity in mice. Methods: Balb/c mice were fed AAES from 0.5 to 75 mg/kg body mass for seven days before grafting their splenocytes intradermally to F1 (Balb/cxC3H) recipients (LIA test). Neovascular reaction was evaluated 72 h later in dissection microscope. Spleen cell cultures were incubated with 0.5, 1 and 2 µg/ml of PHA. After 48 h of incubation, tritiated thymidine was added. After further 24 h, cells were harvested (Skatron) and incorporation of tritiated thymidine was measured using Beta-scintillation counter. Balb/c mice were fed for 7 days with AAES, then immunized intraperitoneally with 5% SRBC suspension and 7 days later the antibody response was measured with hemagglutination test. Results: Neovascular reaction was significantly higher in groups grafted with splenocytes collected from all AAES fed donors than from the controls. The proliferation of splenocytes taken from mice fed AAES at doses ranging from 0.5 mg/kg to 7.5 mg/kg was stimulated in all cultures. Suppression of proliferation was observed in cell cultures derived from mice fed with higher doses of AAES. Stimulation of anti-SRBC antibody production was seen in mice fed both 2.5 and 7.5 mg/kg dose of AAES. Conclusion: Powdered form of Biostymina (AAES) might be useful in the treatment of patients with ischaemia of tissues and organs (myocardial infarction, stroke, necrosis) and in deficiency in the production of immune cells and growth factors (infections, chronic wound healing, ulceration and bone fusion).
Źródło:
Herba Polonica; 2020, 66, 3; 13-23
0018-0599
Pojawia się w:
Herba Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Morphometric abnormalities in the spleen of the progeny of mice fed epigallocatechin during gestation and nursing
Autorzy:
Balan, B.J.
Skopinska-Rozewska, E.
Skopinski, P.
Zdanowski, R.
Lesniak, M.
Kiepura, A.
Lewicki, S.
Powiązania:
https://bibliotekanauki.pl/articles/31390.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Opis:
It is very difficult to cure pregnant females suffering from infections, because of the risk which might occur during treatment by several, even herbal, medications. Many of these substances, among them extracts from plants, have antimicrobial, anti-inflammatory and immunostimulatory properties owing to their polyphenols content, but also may reveal unwanted effects on the fetal development because of their anti-angiogenic properties. The aim of the present study was to elucidate whether daily feeding pregnant and nursing mice 0.2 mg/kg epigallocatechin (EGC), previously recognized as angiogenesis inhibitor, may lead to abnormalities in morphology of spleen and in some parameters of immune function of their adult, 6-week old progeny. Morphometry of EGC offspring spleens revealed lower number of lymphatic nodules and their larger diameter than those found in the control offspring. Cellularity of spleens was lower in EGC offspring than in the controls. Cytometric analysis showed that this decline concerns lymphocytes with CD335 (p<0.001), CD19 (p<0.01) and CD4 (p<0.05) markers. No differences were observed in the humoral response to the immunization with SRBC, and in the proliferative response of splenocytes to mitogens PHA, ConA and LPS.
Źródło:
Polish Journal of Veterinary Sciences; 2017, 20, 1
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
In vivo inhibitory effect of Aloe vera gel on the ability of mouse parental splenic lymphocytes to induce cutaneous angiogenesis in recipient F1 mice
Autorzy:
Skopinski, P.
Lewicki, S.
Balan, B.J.
Kocik, J.
Zdanowski, R.
Skopinska-Rozewska, E.
Siwicki, A.K.
Powiązania:
https://bibliotekanauki.pl/articles/30546.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Opis:
Lymphocyte-induced angiogenesis test (LIA) is a model of local graft-versus-host (GVH) reaction, marker of the earliest events resulting from activation of donor lymphocytes after contact with host semi-allogeneic histocompatibility antigens. The effect of in vivo oral administration of Aloe vera gel for 21 days to maternal strain (Balb/c) donor mice on the ability of their splenic lymphocytes to induce cutaneous angiogenesis (LIA test) in F1 Balb/c x C3H recipients, was studied. Results: Neovascular reaction evaluated 72 hours after cells grafting was significantly lower in F1 mice grafted with lymphocytes collected from Aloe- fed donors, than in recipients of lymphocytes collected from respective controls. Conclusions: This observation opens the promise of safe and ethically acceptable possibility of use of Aloe vera gel in human donors in prevention of GVHD in recipients of bone marrow grafts.
Źródło:
Polish Journal of Veterinary Sciences; 2014, 17, 1
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Morphometric abnormalities in spleen and kidney of the progeny of mice fed American cranberry extract (Vaccinium macrocarpon) during pregnancy and lactation
Autorzy:
Balan, B.J.
Lewicki, S.
Siwicki, A.K.
Stelmasiak, M.
Skopinski, P.
Skopinska-Rozewska, E.
Wasiutynski, A.
Zdanowski, R.
Powiązania:
https://bibliotekanauki.pl/articles/30729.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Opis:
Cranberries and cranberry-derived diet supplements are often recommended for the treatment of urinary tract infections, also during pregnancy. These products contain strongly anti-angiogenic chemical compounds which could not be indifferent to the developing fetus. In the present work we evaluated the effect of feeding pregnant and lactating mice American cranberry extract (daily dose 0.88 mg) on the morphology and some parameters of spleen and kidney function of their adult progeny. Six weeks after delivery the morphometry of spleen and kidney, cytometric analysis of spleen lymphocytes, evaluation of humoral response to SRBC (Sheep Red Blood Cells), and examination of serum creatinine/urea concentration, were performed in the offspring. Spleens of progeny from experimental (E) group differed from the spleens of progeny of control mice in the lower number of lymphatic nodules and their larger diameter. Cytometry of spleen cells from progeny of E mothers revealed more CD19⁺ and CD8⁺ lymphocytes than in the control group. No difference was seen in the response to immunization by red blood cells of sheep (SRBC) between control and E offspring. An increase in the diameter of glomeruli was observed in the kidneys of the experimental group in comparison with the control group. No abnormalities in creatinine and urea serum level were observed. A higher concentration of VEGF and bFGF in E offspring sera in comparison to the controls was seen. Conclusion: Although the observed differences between the control and experimental group were not large, caution is recommended in using cranberries and their extracts during pregnancy until more research will be done on this topic.
Źródło:
Polish Journal of Veterinary Sciences; 2017, 20, 1
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-6 z 6

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