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1.
Environ Res ; 242: 117768, 2024 Feb 01.
Artigo em Inglês | MEDLINE | ID: mdl-38040177

RESUMO

Agricultural low-carbon production emerges as a pivotal function for achieving sustainable green development. However, there remains insufficient empirical evidence regarding the effect of environmental regulations and green subsidies upon the low-carbon production behavior of new agricultural entities. In this study, a questionnaire survey was administered to 268 respondents representing new agricultural entities in Guangdong Province, P.R.C. Subsequently, a structural equation model had been employed for validation analysis. This study's findings demonstrate that in general, environmental regulations positively and significantly affect the behavior of agricultural low-carbon production. Conversely, the influence of green subsidies is not statistically significant. In addition, differences are observed across different sectors, with environmental regulations significantly affecting low-carbon production behavior in the plantation sector, but not in the livestock sector. Conversely, green subsidies significantly impact low-carbon production behavior in the livestock sector, but not in the plantation sector. These findings highlight the promotional role of government-enforced environmental regulations and green subsidies in fostering low-carbon agricultural practices. Therefore, new agricultural entities should strive to augment green production technology capacities to realize sustainable green development.


Assuntos
Agricultura , Tecnologia , Carbono , Regulamentação Governamental , China
2.
Environ Sci Pollut Res Int ; 30(15): 42813-42828, 2023 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-34799797

RESUMO

Prior studies on environmental standards have highlighted the significance of urbanization and transportation in affecting environmental sustainability worldwide. As the empirical and theoretical debates are still unresolved and divisive, the argument of whether urbanization, transportation and economic growth in Association of Southeast Asian Nations (ASEAN) countries cause greenhouse gas (GHG) emissions remains unclear. This study aim is to examine dynamic linkage between transportation, urbanization, economic growth and GHG emissions, as well as the impact of environmental regulations on GHG emission reduction in ASEAN countries over the years 1995-2018. On methodological aspects, the study accompanies a few environmental studies that check the cross-sectional dependence and slope heterogeneity issues. Moreover, the new cross-sectionally augmented autoregressive distributed lags (CS-ARDL) methodology is also applied in the study to estimate the short-run and long-run effects of the factors on GHG emissions. Substantial evidence is provided that GHG emissions increase with transportation, urbanization and economic growth but decrease with the imposition of environmental-related taxations. Augmented mean group (AMG) and common correlated effect mean group (CCEMG) also support the findings of CS-ARDL estimates. Finally, the study calls for drastic actions in ASEAN countries to reduce GHG emissions, including environmentally friendly transportation services and environmental regulation taxes. This study also provides the guidelines to the regulators while developing policies related to control the GHG emission in the country.


Assuntos
Desenvolvimento Econômico , Gases de Efeito Estufa , Urbanização , Estudos Transversais , Poluição Ambiental/análise , Gases de Efeito Estufa/análise , Dióxido de Carbono/análise
3.
Environ Sci Pollut Res Int ; 30(15): 42753-42765, 2023 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-34652619

RESUMO

There is a shred of evidence of environmental degradation in the form of carbon emissions to behave differently when tested with different macroeconomic variables. This paper aims to examine the long-run and short-run association between natural resource rent, financial development, and urbanization on carbon emission from the context of the USA during 1995-2015 with the help of a contemporary and innovative approach named quantile autoregressive distributed lagged model (QARDL). The stated approach is applied due to the fact that non-linearity is observed for the study variables. The findings indicated that the higher financial development (0.304), natural resource rent (0.102), and urbanization (0.489) have a positive impact on the environmental degradation in the region of USA during long-run estimation in the stated quantiles of the study. This would indicate that higher financial development, urbanization, and natural resources are putting more environmental pressure on the economy of the USA. Similarly, the findings under short-run estimation confirm that past and lagged values of carbon emission, financial development, natural resource rent, and urbanization are significantly determining the current values of the carbon emission. For this reason, it is suggested that the government requires some immediate steps of the USA to control the harmful effect of such financial development, more urbanization, and higher natural resource rent as well. This would indicate the reflection of some green strategies in all three explanatory variables to generate some fruitful environmental outcomes.


Assuntos
Carbono , Urbanização , Dióxido de Carbono , Recursos Naturais , Desenvolvimento Econômico
4.
Front Psychol ; 12: 732659, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34925142

RESUMO

Entrepreneurship may be taught, and entrepreneurship education is flourishing at colleges and universities. However, previous documents show that entrepreneurship education is inconsistent with the research conclusions of entrepreneurial intention, which is a lack of discussion on the mediating effect of government subsidies from external resources. Based on the cognitive behavior theory, a mediating effect of entrepreneurship education on entrepreneurial strategy and entrepreneurial intention is built. By collecting the data of 334 questionnaires of college students in Pearl River Delta in China, a structural equation is used for empirical analysis. The result indicates that entrepreneurship education does not have a significant influence on entrepreneurial intention; exploration innovation and exploitation innovation have a positive influence on entrepreneurial intention, and exploration innovation and exploitation innovation have a mediating effect on entrepreneurship education and entrepreneurial intention; government subsidies have a positive regulating effect on exploration innovation, exploitation innovation, and entrepreneurial intention. In this article, the application of the cognitive behavior theory in the field of entrepreneurship research is expanded to provide the theoretical basis for building the entrepreneurship education ecosystem, which is conductive to innovation and entrepreneurship to promote regional economic development.

5.
Front Psychol ; 11: 1976, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-33013508

RESUMO

Ecological innovation is an inevitable trend for firms to enhance competitiveness and sustainably operate in the context of green economy. The previous literature has rarely discussed the influence of ambidextrous learning on the eco-innovation performance of startups and ignored the moderating effect of top management's environmental awareness from the perspective of microscopic psychology. We have conducted a questionnaire survey on 212 firms established within 4 years in the Pearl River Delta of China, using the structure mode and the PROCESS by Hayes (2013) to analyze the influence of ambidextrous learning, such as exploratory learning and exploitative learning, by startups on eco-innovation performance and verify the moderating effect of top management's environmental awareness. The results show that exploratory learning and exploitative learning have a positive and significant influence on eco-innovation performance, indicating that the organizational learning of startups is conducive to improving eco-innovation performance; under the moderating effect of top management's environmental awareness, the influence of exploratory learning and exploitative learning on eco-innovation performance may differ. The results also show that in the process of organizing ambidextrous learning, startups should help raise the environmental awareness of top management to improve the eco-innovation performance, thus providing guidance for startups to carry out eco-innovation activities and for local governments to make decisions on green economy.

6.
Am J Physiol Renal Physiol ; 312(4): F619-F628, 2017 04 01.
Artigo em Inglês | MEDLINE | ID: mdl-28052875

RESUMO

Liver X receptors (LXRs) including LXRα and LXRß are nuclear receptor transcription factors and play an important role in lipid and glucose metabolism. It has been previously reported that mice lacking LXRß but not LXRα develop a severe urine concentrating defect, likely via a central mechanism. Here we provide evidence that LXRß regulates water homeostasis through increasing aquaporin 2 (AQP2) protein levels in renal collecting ducts. LXRß-/- mice exhibited a reduced response to desmopressin (dDAVP) stimulation, suggesting that the diabetes insipidus phenotype is of both central and nephrogenic origin. AQP2 protein abundance in the renal inner medulla was significantly reduced in LXRß-/- mice but with little change in AQP2 mRNA levels. In vitro studies showed that AQP2 protein levels were elevated upon LXR agonist treatment in both primary cultured mouse inner medullary duct cells (mIMCD) and the mIMCD3 cell line with stably expressed AQP2. In addition, LXR agonists including TO901317 and GW3965 failed to induce AQP2 gene transcription but diminished its protein ubiquitination in primary cultured mIMCD cells, thereby inhibiting its degradation. Moreover, LXR activation-induced AQP2 protein expression was abolished by the protease inhibitor MG132 and the ubiquitination-deficient AQP2 (K270R). Taken together, the present study demonstrates that activation of LXRß increases AQP2 protein levels in the renal collecting ducts via a posttranscriptional mechanism. As such, LXRß represents a key regulator of body water homeostasis.


Assuntos
Aquaporina 2/metabolismo , Túbulos Renais Coletores/metabolismo , Receptores X do Fígado/metabolismo , Processamento de Proteína Pós-Traducional , Animais , Antidiuréticos/farmacologia , Aquaporina 2/genética , Linhagem Celular , Desamino Arginina Vasopressina/farmacologia , Genótipo , Capacidade de Concentração Renal , Túbulos Renais Coletores/efeitos dos fármacos , Receptores X do Fígado/deficiência , Receptores X do Fígado/efeitos dos fármacos , Receptores X do Fígado/genética , Camundongos Endogâmicos C57BL , Camundongos Knockout , Fenótipo , Complexo de Endopeptidases do Proteassoma/metabolismo , Estabilidade Proteica , Proteólise , Fatores de Tempo , Transfecção , Ubiquitinação , Regulação para Cima
7.
J Mol Cell Biol ; 8(6): 518-529, 2016 12.
Artigo em Inglês | MEDLINE | ID: mdl-27436752

RESUMO

Among the four prostaglandin E2 receptors, EP3 receptor is the one most abundantly expressed in white adipose tissue (WAT). The mouse EP3 gene gives rise to three isoforms, namely EP3α, EP3ß, and EP3γ, which differ only at their C-terminal tails. To date, functions of EP3 receptor and its isoforms in WAT remain incompletely characterized. In this study, we found that the expression of all EP3 isoforms were downregulated in WAT of both db/db and high-fat diet-induced obese mice. Genetic ablation of three EP3 receptor isoforms (EP3-/- mice) or EP3α and EP3γ isoforms with EP3ß intact (EP3ß mice) led to an obese phenotype with increased food intake, decreased motor activity, reduced insulin sensitivity, and elevated serum triglycerides. Since the differentiation of preadipocytes and mouse embryonic fibroblasts to adipocytes was markedly facilitated by either pharmacological blockade or genetic deletion/inhibition of EP3 receptor via the cAMP/PKA/PPARγ pathway, increased adipogenesis may contribute to obesity in EP3-/- and EP3ß mice. Moreover, both EP3-/- and EP3ß mice had increased lipolysis in WAT mainly due to the activated cAMP/PKA/hormone-sensitive lipase pathway. Taken together, our findings suggest that EP3 receptor and its α and γ isoforms are involved in both adipogenesis and lipolysis and influence food intake, serum lipid levels, and insulin sensitivity.


Assuntos
Adipogenia , Tecido Adiposo Branco/metabolismo , Lipólise , Receptores de Prostaglandina E Subtipo EP3/metabolismo , Adipócitos/metabolismo , Adipócitos/patologia , Animais , Diferenciação Celular , Deleção de Genes , Inflamação/metabolismo , Inflamação/patologia , Resistência à Insulina , Lipoproteínas VLDL/metabolismo , Camundongos , Camundongos Obesos , Obesidade/metabolismo , Obesidade/patologia , Fenótipo , Isoformas de Proteínas/metabolismo , Ratos Sprague-Dawley , Transdução de Sinais , Triglicerídeos/metabolismo
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