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1.
Artículo en Inglés | MEDLINE | ID: mdl-36981677

RESUMEN

Family firms research is becoming one of the most important and promising areas for theoretical innovation in management practice. Corporate environmental behavior has attracted widespread academic attention, but the research on the environmental behavior of family firms is obviously insufficient, and the relevant research results are still in a fragmented state. In this paper, we review and summarize the existing research on the environmental behavior of family firms from three aspects: the research dimensions, the influencing factors, and the influencing effects, and try to sort out the theoretical lineage and evolutionary logic of the environmental behavior of family firms. From the existing research results, the research on the influencing factors and effects of family firms' environmental behavior is at the stage of strife, and there is a lack of in-depth and systematic research on the mechanisms affecting the environmental behavior of family firms and the changes of their effects. In the future, we can explore how to apply or integrate multiple theories simultaneously for complementary explanations, so as to provide a reference for the government to formulate targeted policies to stimulate and regulate the environmental behaviors of family firms.


Asunto(s)
Investigación Conductal , Comercio , Ambiente , Familia , Comercio/organización & administración , Familia/psicología , Humanos
2.
Sci Total Environ ; 859(Pt 2): 160126, 2023 Feb 10.
Artículo en Inglés | MEDLINE | ID: mdl-36372180

RESUMEN

Land desertification, one of the gravest eco-environmental problems in the world, has been proven to be critically influenced by climate change. However, the information on the future spatial-temporal patterns of land desertification under climate change has been rarely explored, which restricts the proposal of reasonable desertification control countermeasures to adapt to climate change. The agro-pastoral ecotone in northern China (APENC) is the most critical eco-environmental barrier in China and is also a climate change-sensitive area prone to aeolian desertification. We quantitatively assessed the risk of aeolian desertification in the APENC to climate change and social-economic development in the near-term (2010-2039), mid-term (2040-2069) and long-term (2070-2099) by integrating the representative concentration pathway (RCP) scenarios and the shared socioeconomic pathway (SSP) scenarios using a data-mining approach. The C5.0 decision tree algorithm demonstrated acceptable reliability in aeolian desertification classification. Aeolian desertification in the APENC shows a significant persistent decreasing trend in 2010-2099 under RCP2.6-SSP1 and RCP8.5-SSP3 scenarios, whereas first increased in mid-term then decreased under RCP6.0-SSP2 scenarios. Aeolian desertification risk is lowest under the RCP2.6-SSP1 scenarios, while it is highest under the RCP6.0-SSP2 scenarios. With climate change and socioeconomic development, the risk of aeolian desertification in APENC was generally dominated by a slight grade, i.e., >70 %. While the moderate and severe grades still occupy vast areas, approximately 20 %, and 10 %, respectively, which mainly distributed in and around the Hulunbuir Sandy Land and the Horqin Sandy Land, showing the hot spots of desertification in the APENC. The reversal trend of aeolian desertification risk in the APENC might be initiated by the significant decrease of wind speed. This work highlights the great potential of data-mining approaches on climate change and social-economic development-related land desertification assessment.


Asunto(s)
Cambio Climático , Conservación de los Recursos Naturales , Reproducibilidad de los Resultados , Monitoreo del Ambiente , Arena , China
3.
Environ Sci Pollut Res Int ; 30(11): 30107-30121, 2023 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-36427126

RESUMEN

As a financial innovation model to promote sustainable economic development, carbon finance promotes green and inclusive economic development by reshaping the financial system. As a big energy consumer, China has been committed to the green transformation of energy structure, and carbon finance has been regarded as an important tool to support carbon emission reduction. This paper divides carbon finance from three levels, financial macro, environmental governance, and technological development, and selects 17 indexes to measure the development level of carbon finance in China. Time series regression model and the entropy weight method (EWM) are used to analyze the impact of carbon finance on China's energy consumption structure. The empirical results show that carbon finance plays a positive role in promoting China's energy consumption structure, and developing carbon finance is conducive to the use of clean energy and the optimization of energy consumption structure in China; carbon finance can further optimize China's energy consumption structure by investing capital, resources, and technology in industries related to promoting clean energy consumption. Therefore, China should continue to develop carbon finance and promote the establishment of a unified national carbon trading market; at the same time, China should use the CCER trading mechanism to promote the development of renewable energy and enhance the endogenous driving force of energy transformation by promoting technological progress.


Asunto(s)
Conservación de los Recursos Naturales , Política Ambiental , Desarrollo Económico , China , Carbono
4.
Sci Rep ; 10(1): 1427, 2020 Jan 29.
Artículo en Inglés | MEDLINE | ID: mdl-31996720

RESUMEN

2,5-Dimethylfuran (DMF) is a type of attractive sustainable green energy for diesel engines that is designed to reduce soot emission. This study investigated the effect of fuel properties on the macroscopic and microscopic spray characteristics of four test blends under injection pressures of 90, 120 and 150 MPa and ambient pressure of 5 MPa in a common diesel rail injection system. The macroscopic results indicate that with higher density, lower viscosity and lower latent heating of DMF20, the spray tip penetration and spray area are increased and the average spray angle is slightly increased. Interestingly, the effect of latent heating on the average spray angle is more obvious than that of kinematic viscosity. The microscopic results suggest that higher density, lower viscosity and lower latent heating of DMF20 have an adverse effect on the breakup of small droplets. The results of comparative analysis show that the change rules of the spray parameters remain nearly unchanged with increased injection pressure, and the influence of DMF20 properties produces a different change in different spray parameters with increasing injection pressure. The meaningful conclusion is that the properties of DMF are favourable to improvement of the spray and atomization parameters under high injection pressure.

5.
Zhonghua Nei Ke Za Zhi ; 54(9): 773-7, 2015 Sep.
Artículo en Chino | MEDLINE | ID: mdl-26674795

RESUMEN

OBJECTIVE: To investigate the application and value of pulmonary artery catheterization (PAC) in pregnant patients with pulmonary hypertension (PH). METHODS: The clinical data of pregnant patients with PH who were treated between 2006 and 2014 in surgical intensive care unit (SICU) at Capital Medical University affiliated Beijing Anzhen Hospital were retrospectively analysed. The differences of the clinical characteristics and outcome between PAC inserted patients and PAC not inserted patients were compared. RESULTS: The systolic pulmonary artery pressure (sPAP) measured by preoperative echocardiography has no significant difference between the PAC inserted patients [(103.0 ± 24.1) mmHg (1 mmHg = 0.133 kPa)] and PAC not inserted patients [(96.4 ± 27.3) mmHg; P = 0.175]. SPAP may be overestimated or underestimated by echocardiography compared with PAC with a gap from -38.4 mmHg to 49.5 mmHg. The rates of idiopathic pulmonary arterial hypertension (20.0% vs 3.2%) and continuous use of epidural anesthesia (89.1% vs 65.1%) were higher in PAC inserted patients compared with PAC not inserted patients. Norepinephrine, dobutamine, sildenafil, alprostadil, iloprost and low molecular weight heparin were more widely used in PAC inserted patients. The mortality rate and the rates of low birth weight (63.9% vs 30.6%) and very low birth weight infants (19.4% vs 13.9%) were all higher in PAC inserted patients, while the rate of induced abortion was lower in this group (5.5% vs 17.5%). The length of stay in surgical intensive care unit [6.0 (5.0) d vs 1.0 (3.0) d], postoperative length of stay [8.0 (6.0) d vs 8.0 (4.0) d] and total hospital costs [43 999.22 (38 267.27) RMB vs 14 878.24 (10 564.47) RMB] were all higher in PAC inserted patients. The incidence rate of PAC related complications was 7.3%. CONCLUSIONS: In moderate or severe PH pregnant patients with severe clinical symptoms, perioperative insertion of PAC helps to monitor the perinatal pulmonary arterial pressure(PAP) and guide treatment, potentially improving clinical outcomes and lowering the short term mortality. PAC can't be replaced by echocardiography in measuring PAP.


Asunto(s)
Cateterismo de Swan-Ganz , Hipertensión Pulmonar/cirugía , Complicaciones Cardiovasculares del Embarazo/terapia , Citrato de Sildenafil/uso terapéutico , Vasodilatadores/uso terapéutico , Beijing , Estudios de Casos y Controles , Ecocardiografía , Hipertensión Pulmonar Primaria Familiar , Femenino , Humanos , Hipertensión Pulmonar/diagnóstico , Lactante , Unidades de Cuidados Intensivos , Periodo Periparto , Embarazo , Resultado del Embarazo , Arteria Pulmonar , Estudios Retrospectivos , Resultado del Tratamiento
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