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Purpose Using social exchange, signaling, job demands-resources and reformulation of attitude theories, the purpose of this paper is to propose and test a research model in which green work engagement (GWEN) mediates the impact of...
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Purpose Using social exchange, signaling, job demands-resources and reformulation of attitude theories, the purpose of this paper is to propose and test a research model in which green work engagement (GWEN) mediates the impact of management commitment to the ecological environment (MCEE) on green creativity, task-related pro-environmental behavior (PEB) and proactive PEB.Design/methodology/approach Data for the paper were obtained from hotel customer-contact employees in Turkey and South Korea. The hypothesized associations were assessed via structural equation modeling.Findings The findings in Studies 1 and 2 supported the viability of the model. Specifically, GWEN partially mediated the effect of MCEE on task-related and proactive PEB, while it fully mediated the influence of MCEE on green creativity.Practical implications Management should invest and/or go on investing in environmental sustainability to send strong signals to employees that the organization really cares about the environment and is highly committed to the preservation and protection of the environment. With green training, empowerment and rewards, management can boost employees’ GWEN, which motivates them to engage in environmentally responsible behaviors.Originality/value The paper advances current knowledge by testing the relationship of MCEE, as appraised by employees, to their GWEN and green work outcomes. More importantly, the paper has explored the impact of GWEN in the intermediate relationship between MCEE and critical green work outcomes, such as green creativity, task-related PEB and proactive PEB. Further, the paper adds to the extant research by assessing the antecedents and outcomes of GWEN.
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Abstract Platinum complexes [PtCl2(L)] L?=?L1, L2 with symmetrical HP (OCH2CMe2NH)2 (L1) and unsymmetrical HP(OCMe2CMe2O)(OCH2CMe2NH) (L2) hydrospirophosphorane (HSP) ligands were demonstrated to play a dual role of catalysts and ...
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Abstract Platinum complexes [PtCl2(L)] L?=?L1, L2 with symmetrical HP (OCH2CMe2NH)2 (L1) and unsymmetrical HP(OCMe2CMe2O)(OCH2CMe2NH) (L2) hydrospirophosphorane (HSP) ligands were demonstrated to play a dual role of catalysts and cytotoxic compounds as well. The structure of new complex [PtCl2(L2)] was confirmed by physicochemical and spectroscopic methods, as well as single X‐ray diffraction studies for [PtCl2{P (OCMe2CMe2O)(OCH2CMe2NH2)}]. HSP ligand coordinated to the platinum center in bidentate κ2‐P,NH2 chelating mode of fashion. Both complexes were found to exhibit catalytic activity for Heck cross‐coupling reactions of iodobenzene with substituted styrenes, with good conversion and yield of stilbenes. Moreover, complexes have been applied as excellent catalysts for highly regioselective hydrosilylation of aromatic and aliphatic terminal olefins, and acetylenes terminal and internal as well. On the other hand, the preliminary biological studies revealed that in the presence of foretinib, drug candidate in clinical trials for the treatment of cancer, platinum complexes revealed increased synergistic effect and efficiently decreased the number of viable cells of triple negative breast cancer MDA‐MB‐231 cell line.
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Niniejsza praca dotyczy przedstawienia innowacyjnych rozwiązań WITI w zakresie konstrukcji ładowarek słonecznych. W pracy przedstawiono panoramę projektu pt.: Wydajne i lekkie układy zasilające złożone z ogniwa słoneczne...
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Niniejsza praca dotyczy przedstawienia innowacyjnych rozwiązań WITI w zakresie konstrukcji ładowarek słonecznych. W pracy przedstawiono panoramę projektu pt.: Wydajne i lekkie układy zasilające złożone z ogniwa słonecznego i baterii litowo-jonowej oraz ogniwa słonecznego i superkondensatora przeznaczone do zastosowań specjalnych realizowanego w ramach Strategicznego programu badań naukowych i prac rozwojowych „Nowoczesne technologie materiałowe". Narodowego Centrum Badań i Rozwoju (NCBR).
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More than two million patients received haemodialysis (HD) in 2013. Many methods for improving dialysis therapy outcomes have been tested. Nevertheless, patients continue to experience high morbidity and mortality rates. We aimed ...
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More than two million patients received haemodialysis (HD) in 2013. Many methods for improving dialysis therapy outcomes have been tested. Nevertheless, patients continue to experience high morbidity and mortality rates. We aimed to develop an animal model of HD treatment to study methods that would prevent the adverse effects of renal replacement therapy. The study was conducted using six male Merino sheep. The animals underwent a two-step bilateral nephrectomy, and a permanent dual-lumen catheter was inserted into the jugular vein. In each animal, 10 short, daily HD treatments were conducted. The dialysis prescription was adjusted individually to each animal. Measures of dialysis adequacy (spKt/V and urea reduction ratio [URR]) were calculated for each HD treatment. All animals remained in a good clinical state during the experiment. However, a sustained decrease in red blood cell count was detected. The average URR was 0.65?±?0.01, whereas the calculated spKt/V was approximately 1.16?±?0.03. Neither hyperphosphataemia nor a significant decline in serum albumin concentrations were detected during the study. A sustained increase in serum potassium concentrations was detected on consecutive days of the experiment. All sheep survived the treatment and were euthanized at the end of the experiment. In conclusion, we developed a reproducible sheep model of HD treatment. The gentle nature and specific anatomical features of sheep provided easy blood access and allowed us to perform HD without pharmacological intervention. However, some differences in sheep physiology relative to human physiology must be considered when interpreting the results of the study.
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W artykule przedstawiono wyniki badań dotyczących optymalizacji konstrukcji zapalarki solarnej MZS100 opracowanej w celu magazynowania energii pozyskanej z paneli fotowoltaicznych oraz jej wykorzystanie do zasilania specjalistyc...
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W artykule przedstawiono wyniki badań dotyczących optymalizacji konstrukcji zapalarki solarnej MZS100 opracowanej w celu magazynowania energii pozyskanej z paneli fotowoltaicznych oraz jej wykorzystanie do zasilania specjalistycznego sprzętu (wojskowego oraz cywilnego, np. budownictwo czy górnictwo). Skonstruowano dwie wersje zapalarki solarnej umożliwiające odpalenie określonej ilości zapałów elektrycznych. Wykazano, iż modułowa budowa zapalarki solarnej wpływa korzystnie na modyfikację jej parametrów użytkowych.
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Abstract The male beard is one of the most visually salient and sexually dimorphic traits and a hypothesized potential marker of other traits, such as dominance, masculinity, social status, and self-confidence. However, as men can...
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Abstract The male beard is one of the most visually salient and sexually dimorphic traits and a hypothesized potential marker of other traits, such as dominance, masculinity, social status, and self-confidence. However, as men can easily alter their facial hair, beards may provide unreliable information about the beard owner’s characteristics. Here, we examined whether beards are honest signals of biological (testosterone levels) and psychological (self-reported dominance) traits. Young (M?=?21.29, SD?=?1.54) and healthy men (N?=?97) participated in the study. Their beards were measured directly (using digital calipers) and by self-report. Participants provided saliva samples before and after acute exercise (to assess their testosterone and cortisol levels) and reported their dominance on a 5-item scale. The results showed that beard length (directly measured and self-reported) was not related to testosterone levels or dominance; thus, no evidence was found to support the hypothesis that beards are honest (or dishonest) signals of the beard owners’ testosterone levels and dominance.
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Using a natural resource-based view and technology-organization-environment framework as the theoretical
focus, this paper develops and tests a research model in which sustainable operations practices mediate the
impact of indus...
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Using a natural resource-based view and technology-organization-environment framework as the theoretical
focus, this paper develops and tests a research model in which sustainable operations practices mediate the
impact of industry 4.0 technologies on sustainable performance. The model also tests sustainable operations
practices as a moderator of the effect of industry 4.0 technologies on sustainable performance. Data obtained
from 302 participants in Turkey’s technology development regions were utilized to gauge the aforesaid linkages
via partial least squares structural equation modeling. As predicted, sustainable operations practices mediate the
influence of industry 4.0 technologies on sustainable performance. Contrary to the study prediction, sustainable
operations practices do not significantly moderate the impact of industry 4.0 technologies on sustainable performance.
Theoretical and practical implications are discussed and future research directions are offered.
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ABSTRACT The isotope biogeochemistry of bioindicators has widely demonstrated its added value in environmental issues by allowing to precisely identify sources of contamination. Most of the studies are based on studying one or two...
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ABSTRACT The isotope biogeochemistry of bioindicators has widely demonstrated its added value in environmental issues by allowing to precisely identify sources of contamination. Most of the studies are based on studying one or two isotope systematics. Here, we are presenting an innovative multi-proxy approach that combines chemistry with both stable (C, S, N) and radiogenic (Pb) isotope systematics. Using Hypogymnia physodes bioindicators, we evaluated air quality in the complex environment of the Świętokrzyski National Park (ŚNP, Poland) with the ultimate objective of isotopically identifying the sources responsible for the observed contamination. Combining the isotope systematics showed that home heating is a major source of contamination in winter, whereas the contribution of road traffic increases during the summer. Pb isotope ratios identified industrial activities as the major source of this metal in the atmosphere.
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W artykule omówiono wpływ domieszki i techniki wytwarzania warstw na parametry elektrochemiczne i elektryczne materiałów organicznych dla ogniw słonecznych trzeciej generacji. Warstwy wytworzono poprzez zastosowanie techniki ...
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W artykule omówiono wpływ domieszki i techniki wytwarzania warstw na parametry elektrochemiczne i elektryczne materiałów organicznych dla ogniw słonecznych trzeciej generacji. Warstwy wytworzono poprzez zastosowanie techniki nanoszenia wirowego, warstwy rozciągającej i nanoszenia natryskowego. W oparciu o badania własne przeanalizowano wpływ zastosowanego materiału, domieszki, rozpuszczalnika oraz parametrów technicznych na jakość powierzchni wytworzonych warstw poprzez zastosowanie kamery termowizyjnej.
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W artykule omówiono wpływ organicznej warstwy transportującej ładunki dodatnie (HTM) na parametry elektrochemiczne i elektryczne polimerowych i perowskitowych ogniw słonecznych. W oparciu o badania własne przeanalizowano wpł...
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W artykule omówiono wpływ organicznej warstwy transportującej ładunki dodatnie (HTM) na parametry elektrochemiczne i elektryczne polimerowych i perowskitowych ogniw słonecznych. W oparciu o badania własne przeanalizowano wpływ budowy chemicznej polimerów czy związków malocząsteczkowych stosowanych jako HTM na sprawność ogniw słonecznych trzeciej generacji. Najwyższą sprawność otrzymano dla ogniw perowskitowych na bazie iminy (PCE = 14,4%), zaś najwyższą wartość przewodnictwa dla PEDOTPSS w roztworze wodnym (1,03 × 10~(-3) S/cm).
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