Urban green spaces have positive effects on both physical and mental wellbeing.However,few studies have focused on the trends and thresholds of the effects of different influences on restorative benefits when viewing ...Urban green spaces have positive effects on both physical and mental wellbeing.However,few studies have focused on the trends and thresholds of the effects of different influences on restorative benefits when viewing scenes differfeaturing plant communities.We measured subjective evaluations and objective physiological data from 44 participants who viewed images of plant communities in the yellow to green hue range to compare differences in restorative benefits among plant communities at different visual distances,as well as quantifying the influencing factors involved.The following results were found:(1)Coniferous and multi-layered plant communities were found to provide greater restorative benefits,and the restorative benefits grew with increasing visual distance.(2)Shape and color characteristics were significantly correlated with restorative benefits,but the relationship is not simply linear.(3)The restorative benefits were found to be greatest when crown proportion was 61.23%,trunk proportion ranged from 4.11%to 13.70%,and the value of color index value ranged from 25.44%to 35.56%;the restorative benefits gradually increased when sky proportion exceeded 12.95%-13.19%,the fractal dimension exceeded 1.62-1.67,and hue index exceeded 91.64°-95.67°;additionally,the restorative benefits decreased when the saturation index increased.This study provides a scientific basis for the construction and improvement of plant landscapes in urban green spaces.展开更多
1.Introduction The field of exercise science is experiencing a renaissance,with recent research illuminating the molecular,cellular,and systemic effects of physical activity.This is largely due to the now unequivocal ...1.Introduction The field of exercise science is experiencing a renaissance,with recent research illuminating the molecular,cellular,and systemic effects of physical activity.This is largely due to the now unequivocal evidence that a lack of physical activity,not only has direct effects on the prevalence of non-contagious diseases(NCDs)but has profound additive effects of other risk factors for NCD such as obesity and hypertension.1 The articles in this special topic of Journal of Sport and Health Science(JSHS)are dedicated to research on Exercise biochemistry&metabolism.展开更多
Understanding the complex interactions between human activities and ecosystem functions is a prerequisite for achieving sustainable development.Since the implementation of the“Grain for Green”Project in 1999,ecosyst...Understanding the complex interactions between human activities and ecosystem functions is a prerequisite for achieving sustainable development.Since the implementation of the“Grain for Green”Project in 1999,ecosystem functions in China’s Loess Plateau have significantly improved.However,intensified human activities have also exacerbated the pressures on the region’s fragile ecological environment.This study investigates the spatiotemporal variations in the human activity intensity index(HAI)and net ecosystem benefits(NEB)from 2000 to 2020,using expert-based assessments and an enhanced cost-benefit evaluation framework.Results indicate that HAI increased by 16.7% and 16.6% at the grid and county levels,respectively.NEB exhibited pronounced spatial heterogeneity,with a total increase of USD 36.2 trillion at the grid scale.At the county level,the average NEB rose by 75%.The degree of trade-off was higher at the grid scale than at the county scale,while the synergistic areas initially expanded and then declined at both scales.Key areas for improvement and regions of lagging development were identified as priority zones for ecological management and spatial planning at both spatial resolutions.This study offers scientific insights and practical guidance for harmonizing ecological conservation with high-quality development in ecologically vulnerable regions.展开更多
Honey,a natural substance,has long been valued for its dual role in both food and medicine in diverse cultural traditions,particularly in traditional Chinese medicine(TCM).It is rich in sugars,amino acids,enzymes,poly...Honey,a natural substance,has long been valued for its dual role in both food and medicine in diverse cultural traditions,particularly in traditional Chinese medicine(TCM).It is rich in sugars,amino acids,enzymes,polyphenols,and flavonoids that contribute to its antimicrobial,antioxidant,and immuno-modulatory properties.Additionally,honey is effective in managing some conditions,such as antibiotic-resistant infections,inflammation,and oxidative stress-related diseases.This review explores the extensive health benefits of honey,emphasizing the homology between food and medicine,as proposed by TCM philosophy.Further,this review explores the traditional applications of honey in respiratory health,wound healing,and gastrointestinal support,along with modern scientific validation of these uses.Moreover,the role of honey as a dietary supplement,functional food,and preservative in culinary practices is examined.Overall,this review highlights the synergy between ancient wisdom and contemporary science,advocating for the continued exploration of the role of honey in health,nutrition,and medicine.展开更多
The horizontal ecological compensation plays an important role in balancing the interests of all parties and coordinating regional development in the basin.However,the mechanism of ecological compensation based on emb...The horizontal ecological compensation plays an important role in balancing the interests of all parties and coordinating regional development in the basin.However,the mechanism of ecological compensation based on embodied carbon emissions is still poorly understood.Here,taking the Yellow River Basin as the research area,we use the multi-regional input-output(MRIO)model to measure the embodied carbon transfers between its seven urban agglomerations in 2012 and 2017 from the viewpoint of value-added trade benefits.Further,for the first time,the green trade benefits and ecological compensation amounts are analyzed.The results indicate that:(1)The transfer of trade-embodied carbon among the urban agglomerations in the basin showed obvious spatial heterogeneity and geographic proximity effects,and trade-embodied carbon outflows(inflows)had a pattern of"highest in the midstream,second in the downstream,and lowest in the upstream".(2)The industry composition of the urban agglomerations in relation to embodied carbon outflows(inflows)was similar,mainly in the service and heavy manufacturing industries.(3)The spatial pattern of green trade benefits in the basin had shifted from"high in the north and low in the surrounding area"to"high in the east-central part and low in the west".(4)The pattern of ecological compensation in the basin had shifted from the upstream surplus,the middle and downstream deficit to the midstream deficit,and the upstream and downstream surplus.Therefore,we recommend improving energy structures in high-demand urban agglomerations by adopting clean energy,focusing on decarbonization and energy efficiency in resource-rich regions.Additionally,promoting low-carbon economies,especially in the service and heavy manufacturing industries,implementing differentiated emission reduction strategies,and optimizing carbon compensation mechanisms considering regional disparities and resource endowments are crucial.It is expected that the study can enrich the scientific basis of horizontal ecological compensation and increase the fairness of regional carbon emission rights allocation.展开更多
Dear Editor,Lassa virus(LASV)is the causative agent of the acute viral hemorrhagic Lassa fever(LF),which is classified into Mammarenavirus within the Arenaviridae family,with a single-stranded,negative-sense,bisegment...Dear Editor,Lassa virus(LASV)is the causative agent of the acute viral hemorrhagic Lassa fever(LF),which is classified into Mammarenavirus within the Arenaviridae family,with a single-stranded,negative-sense,bisegmented RNA genome.Due to its high pathogenicity and lethality,LASV is considered as a priority threat to public health,with an estimated cases of 300,000 infections and 5000 deaths annually.LASV was first isolated and described as a clinical entity in 1969 in Lassa,Nigeria(Garry,2023).LASV isolates of different geographic and host origins are highly diverse in genomic sequences and phylogenetically classified into up to seven lineages,with each lineage predominately localized in specific countries.Although the research on LF has been carried out for decades since the pathogen first characterized,there is no approved antiviral drugs or vaccines for clinical use against LASV to date(Grant et al.,2023).One possible reason that hindered the development of countermeasures is that the preclinical studies on authentic LASV are restricted in high bio-containment biosafety level 4(BSL-4)facilities.In this letter,we describe isolation,and characterization of the LASV from the clinical samples.And we applied a coadministration assay of antiviral drugs for LASV by using a clinically isolated Mammarenavirus lassaense strain in the BSL-4 facility,aiming to investigate new therapeutic strategies for LASV infection.展开更多
With the increasing use of technology in language education,understanding the benefits and barriers of mobile-assisted language learning(MALL)is crucial for effective integration.Qualitative data were collected throug...With the increasing use of technology in language education,understanding the benefits and barriers of mobile-assisted language learning(MALL)is crucial for effective integration.Qualitative data were collected through interviews among Chinese English teachers in universities.Thematic analysis was employed to identify themes.The findings reveal that Chinese English teachers perceive MALL to offer benefits like convenience,effectiveness,efficiency,engagement,personalization,and resource richness.However,several barriers were identified,including low teacher ability,student device misuse,lack of institutional support,technical limitations,health concerns,and time constraints.These findings contribute to a deeper understanding of the factors influencing the adoption of MALL in Chinese universities and have implications for language teaching practice.展开更多
[Objective]The paper was to investigate the effects of substituting corn pellets with potato residue on the growth performance,rumen fermentation indicators and economic benefits of Xinjiang Brown cattle.[Method]A tot...[Objective]The paper was to investigate the effects of substituting corn pellets with potato residue on the growth performance,rumen fermentation indicators and economic benefits of Xinjiang Brown cattle.[Method]A total of 80 Xinjiang Brown cattle,each 22 months old and with a similar body weight of(250±15)kg,were randomly assigned to four groups,with 20 cattle in each group,utilizing a single-factor experimental design.The total mixed diets for the experimental groups Ⅰ,Ⅱ,and Ⅲ were formulated by substituting corn pellets with 2.00%,4.00%,and 6.00%potato residue,respectively,while the diet in the control group was not substituted with potato residue.The duration of the test was 100 d,which comprised a pre-test period of 10 d and a formal test period of 90 d.During the test period,the average dry matter intake,average daily weight gain and feed-gain ratio were assessed at 30-day intervals,and body size indicators were measured on days 0 and 90.Rumen fluid samples were collected from the oral cavity on days 0,30,60,and 90 to assess rumen fermentation parameters.Additionally,jugular blood samples were obtained during the fasting period,and serum was separated for the analysis of total protein mass concentration,urea nitrogen,and glucose concentration.Furthermore,the economic benefits accrued during the test period were calculated.[Result]The dry matter intake in experimental group Ⅰ was significantly higher than that in the control group from days 31 to 60(P<0.05).In contrast,the differences in dry matter intake between experimental groups Ⅱ and Ⅲ and the control group were not statistically significant(P>0.05).From days 61 to 90,the dry matter intake in experimental group Ⅰ remained significantly higher than that in the other groups(P<0.05).Throughout the entire experimental period,the average daily weight gain observed in experimental group Ⅰ was significantly greater than that recorded in the other groups(P<0.05).Additionally,the total weight gain over the entire period was significantly higher than that of experimental group Ⅱ(P<0.05)and markedly higher than that of both the control group and experimental group Ⅲ(P<0.01).The feed-gain ratio in experimental group Ⅰ was significantly lower than that in experimental group Ⅱ(P<0.05).There were no statisticaly significant differences observed in body height,slope length,thoracic circumference,abdominal circumference,rumen pH,acetic acid,propionic acid,butyric acid,valeric acid,total volatile fatty acids,and ammoniacal nitrogen mass concentration among the groups(P>0.05).On the 90th day of the experiment,the serum urea nitrogen concentration in beef cattle from experimental groups Ⅰ and Ⅱ was significantly lower than that in the control group and experimental group Ⅲ(P<0.05).Additionally,the profit margins in experimental groups Ⅰ,Ⅱ,and Ⅲ were higher than those in the control group,and the profit margin in experimental group Ⅰ was the highest.[Conclusion]The substitution of corn pellets with potato residue has the potential to enhance the average daily weight gain and total weight gain throughout the entire period in beef cattle,while simultaneously reducing the feed-gain ratio.However,this substitution does not appear to have a significant impact on body size indicators,rumen fermentation parameters,or the concentrations of serum total protein and glucose in beef cattle.Furthermore,this approach may yield improved breeding profitability,with a recommended substitution ratio of 2.00%based on the conditions of this experiment.展开更多
Public participation is crucial in mitigating disasters.Stemming from the ongoing debate on benefit-and risk-driven approaches to landslide mitigation,this study seeks to uncover the factors and underlying mechanisms ...Public participation is crucial in mitigating disasters.Stemming from the ongoing debate on benefit-and risk-driven approaches to landslide mitigation,this study seeks to uncover the factors and underlying mechanisms that affect farmers'willingness to participate in landslide prevention and mitigation(WPLPM).Conducted in Heifangtai,Gansu Province,China,renowned as the"landslide natural laboratory",this research employs multiple linear regression analysis on data from 399 questionnaires to pinpoint the key determinants of farmers'WPLPM.The findings reveal:(1)the"risk perception paradox"exists—farmers have high-risk perception but low WPLPM;(2)the impact of risk perception on WPLPM is tempered by self-efficacy related to fund,learning ability,and operation ability,offering an insight into the"risk perception paradox";and(3)There are significant positive influences of farmers'benefit perception,social network,and perceived responsibility on their WPLPM.Based on these insights,the study offers targeted policy recommendations.展开更多
Objective:This study aims to explore the benefit analysis of the same disease in different departments of public hospitals under the DIP payment method.Methods:This study is a retrospective analysis that selected clin...Objective:This study aims to explore the benefit analysis of the same disease in different departments of public hospitals under the DIP payment method.Methods:This study is a retrospective analysis that selected clinical data from patients who received treatment in the Department of Orthopedics and the Department of Acupuncture and Moxibustion at our hospital from January 1,2023,to December 31,2023.The study compared the costs of medications,examinations,treatments,laboratory tests,nursing and other expenses,and total treatment costs between the two departments.It analyzed the cost structure of the two departments and proposed further improvement suggestions.Results:The study results indicated that the total costs in the Department of Acupuncture and Moxibustion were significantly higher than those in the Department of Orthopedics.Among medication costs,the total medication costs in the Department of Orthopedics were higher than those in the Department of Acupuncture and Moxibustion,with costs for Western medicine,proprietary Chinese medicine,and herbal medicine all being higher(p<0.05).Regarding examination costs,consultation fees in the Department of Orthopedics were lower than those in the Department of Acupuncture and Moxibustion,while examination costs were higher(p<0.05).In terms of treatment costs,orthopedic treatment and surgical fees were higher than those in the Department of Acupuncture and Moxibustion(p<0.05).For laboratory test costs,orthopedic laboratory fees were significantly higher than those in the Department of Acupuncture and Moxibustion(p<0.05).Among nursing and other expenses,orthopedic blood transfusion,bed fees,and other expenses were higher than those in the Department of Acupuncture and Moxibustion,while nursing fees were lower(p<0.05).Conclusion:Treatment fees in the Department of Acupuncture and Moxibustion are the core and account for a relatively high proportion of the total costs.The benefits generated by the Department of Orthopedics are primarily derived from medication,examination,and laboratory fees,aligning with the characteristics of combining diagnosis,medication,and surgical intervention in orthopedic treatment.Consultation fees,nursing fees,and bed fees in the Department of Acupuncture and Moxibustion are higher than those in the Department of Orthopedics,indicating a longer treatment cycle in acupuncture,which warrants clinical attention.展开更多
In the context of the“dual carbon”goals and digital transformation,technological innovation has become the core driving force for enhancing the management efficiency and overall benefits of building projects.Digital...In the context of the“dual carbon”goals and digital transformation,technological innovation has become the core driving force for enhancing the management efficiency and overall benefits of building projects.Digital tools(BIM,IoT,AI)are reshaping design and construction collaboration mechanisms,while intelligent equipment(drones,robots)is optimizing work efficiency and safety.Green technologies(low-carbon materials,waste regeneration)are promoting sustainable development.Dynamic management models drive resource allocation and risk warnings through real-time data,achieving precise control over costs,quality,and schedules,with project comprehensive benefits improving by 20–30%.Issues such as insufficient technology integration and high application barriers for small and medium-sized enterprises urgently need to be addressed.Accelerating the industry’s transition towards high-efficiency and low-carbon directions requires policy support,the construction of a technological ecosystem,and the cultivation of versatile talent.展开更多
To describe and analyze the current status of benefit-finding research in patients with chronic diseases and to provide a reference for clinical practice and future research in this field.Using Arksey and O’Malley’s...To describe and analyze the current status of benefit-finding research in patients with chronic diseases and to provide a reference for clinical practice and future research in this field.Using Arksey and O’Malley’s scoping review methodology as a framework,we searched PubMed,Web of Science,Science Direct,and CINAHL(4 English databases);and China National Knowledge Infrastructure,the VIP Database for Chinese Technical Periodicals,the Wan Fang Database and China Biomedical Database(4 Chinese databases)for literature on benefit finding in patients with chronic diseases,with a search time frame of construction to April 20,2024,and the literature was screened,extracted,and summarized.A total of 44 papers were included,comprising 18 in Chinese and 26 in English.Among them,a total of 19 assessment tools were used,and the influential factors investigated were categorized into socio-demographic characteristics,disease-related characteristics,psychological and behavioral characteristics,coping styles,and social support.Benefit finding is found to be a positive psychological experience and important for patients with chronic diseases,and the influencing factors are complex and diverse,with a wide range of assessment tools.However,domestic tools lack autonomy and specificity.Clinical caregivers and staff should develop relevant assessment tools and formulate a personalized research plan based on the characteristics of patients with chronic diseases in China to promote the adoption of healthy lifestyles by patients with chronic diseases,improve their self-management ability,and provide a practical basis for improving the quality of life of patients with chronic diseases.展开更多
Benefit evaluation of debris flow prevention and control projects was one of the essential contents of debris flow prevention and mitigation work.In order to scientifically and quantitatively evaluate the comprehensiv...Benefit evaluation of debris flow prevention and control projects was one of the essential contents of debris flow prevention and mitigation work.In order to scientifically and quantitatively evaluate the comprehensive benefit of debris flow prevention and control projects,this study identified nine factors as evaluation indicators from economic,social,and ecological aspects.The projection pursuit(PP) model based on the improved particle swarm optimization(IPSO) algorithm was used to construct a mathematical model to evaluate the benefit of debris flow prevention and control projects.The interpolation method was applied to divide the benefit grades.The debris flow prevention and control projects in Qipan,Taoguan,Chutou,Anjia,and Mozi gullies in Wenchuan County were chosen as typical cases for empirical analysis.The case study revealed that,among the criteria layer indicators,investment per unit of the protected area,investment per unit of the protected population,the amount of water and soil conservation,and reduction rate of accumulation fan had the most significant weights.The social and ecological benefits were found to be the more important in the target layer.The comprehensive benefit of Qipan,Taoguan,Chutou,Anjia,and Mozi gullies was found to be 4.44,4.83,1.95,3,and 2,respectively.The benefit ranking of the five gullies was consistent with their effectiveness in disaster prevention ranking in the flood season of 2019.Therefore,it could prove that the newly-built benefit evaluation model was practical and feasible,and the evaluation results of the sample could be reasonably interpreted,which verified the effectiveness of the methods.展开更多
In this paper,we investigate the optimal investment strategy for a target-return pension plan under a Wishart model using stochastic optimal control methods.We consider the fact that mortality and interest rates are a...In this paper,we investigate the optimal investment strategy for a target-return pension plan under a Wishart model using stochastic optimal control methods.We consider the fact that mortality and interest rates are affected by a combination of systematic and idiosyncratic factors,which are modelled by a Wishart model with positive values.On this basis,we analyse the correlation between stochastic mortality and stochastic wage rates for plan members,as well as wage movements and financial market volatility.It is shown that financial market parameters and wage rates have a significant impact on the optimal investment strategy.We provide the optimal investment strategy and the optimal yield adjustment strategy for target-return pensions.This study provides a valuable reference for policy formulation and implementation of target-return pension plans in China.展开更多
基金funded by the National Natural Science Foundation of China(32471953)the Educational Department of Liaoning Province Key Research Project(LJ212410153073).
文摘Urban green spaces have positive effects on both physical and mental wellbeing.However,few studies have focused on the trends and thresholds of the effects of different influences on restorative benefits when viewing scenes differfeaturing plant communities.We measured subjective evaluations and objective physiological data from 44 participants who viewed images of plant communities in the yellow to green hue range to compare differences in restorative benefits among plant communities at different visual distances,as well as quantifying the influencing factors involved.The following results were found:(1)Coniferous and multi-layered plant communities were found to provide greater restorative benefits,and the restorative benefits grew with increasing visual distance.(2)Shape and color characteristics were significantly correlated with restorative benefits,but the relationship is not simply linear.(3)The restorative benefits were found to be greatest when crown proportion was 61.23%,trunk proportion ranged from 4.11%to 13.70%,and the value of color index value ranged from 25.44%to 35.56%;the restorative benefits gradually increased when sky proportion exceeded 12.95%-13.19%,the fractal dimension exceeded 1.62-1.67,and hue index exceeded 91.64°-95.67°;additionally,the restorative benefits decreased when the saturation index increased.This study provides a scientific basis for the construction and improvement of plant landscapes in urban green spaces.
文摘1.Introduction The field of exercise science is experiencing a renaissance,with recent research illuminating the molecular,cellular,and systemic effects of physical activity.This is largely due to the now unequivocal evidence that a lack of physical activity,not only has direct effects on the prevalence of non-contagious diseases(NCDs)but has profound additive effects of other risk factors for NCD such as obesity and hypertension.1 The articles in this special topic of Journal of Sport and Health Science(JSHS)are dedicated to research on Exercise biochemistry&metabolism.
基金National Natural Science Foundation of China(Grant No.U2243225)the Strategic Priority Research Program of the Chinese Academy of Sciences(Grant No.XDB40000000)+2 种基金the Natural Science Basic Research Program of Shaanxi(Grant No.Z2024-ZYFS-0065)the Funding of Top Young talents of Ten Thousand talents Plan in China(2021)the Fundamental Research Funds for the Central Universities(Grants No.2452023071 and 2023HHZX002).
文摘Understanding the complex interactions between human activities and ecosystem functions is a prerequisite for achieving sustainable development.Since the implementation of the“Grain for Green”Project in 1999,ecosystem functions in China’s Loess Plateau have significantly improved.However,intensified human activities have also exacerbated the pressures on the region’s fragile ecological environment.This study investigates the spatiotemporal variations in the human activity intensity index(HAI)and net ecosystem benefits(NEB)from 2000 to 2020,using expert-based assessments and an enhanced cost-benefit evaluation framework.Results indicate that HAI increased by 16.7% and 16.6% at the grid and county levels,respectively.NEB exhibited pronounced spatial heterogeneity,with a total increase of USD 36.2 trillion at the grid scale.At the county level,the average NEB rose by 75%.The degree of trade-off was higher at the grid scale than at the county scale,while the synergistic areas initially expanded and then declined at both scales.Key areas for improvement and regions of lagging development were identified as priority zones for ecological management and spatial planning at both spatial resolutions.This study offers scientific insights and practical guidance for harmonizing ecological conservation with high-quality development in ecologically vulnerable regions.
基金supported by the National Natural Science Foundation of China(32322079)Beijing Nova Program(20220484101)Talented Young Scientist Program,Ministry of Science and Technology of the People's Republic of China,and China Postdoctoral Science Foundation(2024M753576).
文摘Honey,a natural substance,has long been valued for its dual role in both food and medicine in diverse cultural traditions,particularly in traditional Chinese medicine(TCM).It is rich in sugars,amino acids,enzymes,polyphenols,and flavonoids that contribute to its antimicrobial,antioxidant,and immuno-modulatory properties.Additionally,honey is effective in managing some conditions,such as antibiotic-resistant infections,inflammation,and oxidative stress-related diseases.This review explores the extensive health benefits of honey,emphasizing the homology between food and medicine,as proposed by TCM philosophy.Further,this review explores the traditional applications of honey in respiratory health,wound healing,and gastrointestinal support,along with modern scientific validation of these uses.Moreover,the role of honey as a dietary supplement,functional food,and preservative in culinary practices is examined.Overall,this review highlights the synergy between ancient wisdom and contemporary science,advocating for the continued exploration of the role of honey in health,nutrition,and medicine.
基金supported by the National Natural Science Foundation of China(Grant number 42201302)the"Double First-Class"University Construction Project of Lanzhou University(Grant number:561120213)。
文摘The horizontal ecological compensation plays an important role in balancing the interests of all parties and coordinating regional development in the basin.However,the mechanism of ecological compensation based on embodied carbon emissions is still poorly understood.Here,taking the Yellow River Basin as the research area,we use the multi-regional input-output(MRIO)model to measure the embodied carbon transfers between its seven urban agglomerations in 2012 and 2017 from the viewpoint of value-added trade benefits.Further,for the first time,the green trade benefits and ecological compensation amounts are analyzed.The results indicate that:(1)The transfer of trade-embodied carbon among the urban agglomerations in the basin showed obvious spatial heterogeneity and geographic proximity effects,and trade-embodied carbon outflows(inflows)had a pattern of"highest in the midstream,second in the downstream,and lowest in the upstream".(2)The industry composition of the urban agglomerations in relation to embodied carbon outflows(inflows)was similar,mainly in the service and heavy manufacturing industries.(3)The spatial pattern of green trade benefits in the basin had shifted from"high in the north and low in the surrounding area"to"high in the east-central part and low in the west".(4)The pattern of ecological compensation in the basin had shifted from the upstream surplus,the middle and downstream deficit to the midstream deficit,and the upstream and downstream surplus.Therefore,we recommend improving energy structures in high-demand urban agglomerations by adopting clean energy,focusing on decarbonization and energy efficiency in resource-rich regions.Additionally,promoting low-carbon economies,especially in the service and heavy manufacturing industries,implementing differentiated emission reduction strategies,and optimizing carbon compensation mechanisms considering regional disparities and resource endowments are crucial.It is expected that the study can enrich the scientific basis of horizontal ecological compensation and increase the fairness of regional carbon emission rights allocation.
基金supported by the National Key Research and Development Program of China(2022YFC2303300,2023YFC2605504)the National Natural Science Foundation of China(82172273 and 31670165)the Open Research Fund Program of the State Key Laboratory of Virology of China(2023JZZD-01).
文摘Dear Editor,Lassa virus(LASV)is the causative agent of the acute viral hemorrhagic Lassa fever(LF),which is classified into Mammarenavirus within the Arenaviridae family,with a single-stranded,negative-sense,bisegmented RNA genome.Due to its high pathogenicity and lethality,LASV is considered as a priority threat to public health,with an estimated cases of 300,000 infections and 5000 deaths annually.LASV was first isolated and described as a clinical entity in 1969 in Lassa,Nigeria(Garry,2023).LASV isolates of different geographic and host origins are highly diverse in genomic sequences and phylogenetically classified into up to seven lineages,with each lineage predominately localized in specific countries.Although the research on LF has been carried out for decades since the pathogen first characterized,there is no approved antiviral drugs or vaccines for clinical use against LASV to date(Grant et al.,2023).One possible reason that hindered the development of countermeasures is that the preclinical studies on authentic LASV are restricted in high bio-containment biosafety level 4(BSL-4)facilities.In this letter,we describe isolation,and characterization of the LASV from the clinical samples.And we applied a coadministration assay of antiviral drugs for LASV by using a clinically isolated Mammarenavirus lassaense strain in the BSL-4 facility,aiming to investigate new therapeutic strategies for LASV infection.
文摘With the increasing use of technology in language education,understanding the benefits and barriers of mobile-assisted language learning(MALL)is crucial for effective integration.Qualitative data were collected through interviews among Chinese English teachers in universities.Thematic analysis was employed to identify themes.The findings reveal that Chinese English teachers perceive MALL to offer benefits like convenience,effectiveness,efficiency,engagement,personalization,and resource richness.However,several barriers were identified,including low teacher ability,student device misuse,lack of institutional support,technical limitations,health concerns,and time constraints.These findings contribute to a deeper understanding of the factors influencing the adoption of MALL in Chinese universities and have implications for language teaching practice.
基金Supported by Natural Science Foundation Key Project of Xinjiang Uygur Autonomous Region(2022D01D10)China Agricultural Industry Research System of Xinjiang Uygur Autonomous Region in 2024(XJARS-12-05)Project of Key Laboratory of Animal Nutrition and Feed of Yili Prefecture.
文摘[Objective]The paper was to investigate the effects of substituting corn pellets with potato residue on the growth performance,rumen fermentation indicators and economic benefits of Xinjiang Brown cattle.[Method]A total of 80 Xinjiang Brown cattle,each 22 months old and with a similar body weight of(250±15)kg,were randomly assigned to four groups,with 20 cattle in each group,utilizing a single-factor experimental design.The total mixed diets for the experimental groups Ⅰ,Ⅱ,and Ⅲ were formulated by substituting corn pellets with 2.00%,4.00%,and 6.00%potato residue,respectively,while the diet in the control group was not substituted with potato residue.The duration of the test was 100 d,which comprised a pre-test period of 10 d and a formal test period of 90 d.During the test period,the average dry matter intake,average daily weight gain and feed-gain ratio were assessed at 30-day intervals,and body size indicators were measured on days 0 and 90.Rumen fluid samples were collected from the oral cavity on days 0,30,60,and 90 to assess rumen fermentation parameters.Additionally,jugular blood samples were obtained during the fasting period,and serum was separated for the analysis of total protein mass concentration,urea nitrogen,and glucose concentration.Furthermore,the economic benefits accrued during the test period were calculated.[Result]The dry matter intake in experimental group Ⅰ was significantly higher than that in the control group from days 31 to 60(P<0.05).In contrast,the differences in dry matter intake between experimental groups Ⅱ and Ⅲ and the control group were not statistically significant(P>0.05).From days 61 to 90,the dry matter intake in experimental group Ⅰ remained significantly higher than that in the other groups(P<0.05).Throughout the entire experimental period,the average daily weight gain observed in experimental group Ⅰ was significantly greater than that recorded in the other groups(P<0.05).Additionally,the total weight gain over the entire period was significantly higher than that of experimental group Ⅱ(P<0.05)and markedly higher than that of both the control group and experimental group Ⅲ(P<0.01).The feed-gain ratio in experimental group Ⅰ was significantly lower than that in experimental group Ⅱ(P<0.05).There were no statisticaly significant differences observed in body height,slope length,thoracic circumference,abdominal circumference,rumen pH,acetic acid,propionic acid,butyric acid,valeric acid,total volatile fatty acids,and ammoniacal nitrogen mass concentration among the groups(P>0.05).On the 90th day of the experiment,the serum urea nitrogen concentration in beef cattle from experimental groups Ⅰ and Ⅱ was significantly lower than that in the control group and experimental group Ⅲ(P<0.05).Additionally,the profit margins in experimental groups Ⅰ,Ⅱ,and Ⅲ were higher than those in the control group,and the profit margin in experimental group Ⅰ was the highest.[Conclusion]The substitution of corn pellets with potato residue has the potential to enhance the average daily weight gain and total weight gain throughout the entire period in beef cattle,while simultaneously reducing the feed-gain ratio.However,this substitution does not appear to have a significant impact on body size indicators,rumen fermentation parameters,or the concentrations of serum total protein and glucose in beef cattle.Furthermore,this approach may yield improved breeding profitability,with a recommended substitution ratio of 2.00%based on the conditions of this experiment.
基金funded by National Social Science Foundation of China(Grant Number 24&ZD164)。
文摘Public participation is crucial in mitigating disasters.Stemming from the ongoing debate on benefit-and risk-driven approaches to landslide mitigation,this study seeks to uncover the factors and underlying mechanisms that affect farmers'willingness to participate in landslide prevention and mitigation(WPLPM).Conducted in Heifangtai,Gansu Province,China,renowned as the"landslide natural laboratory",this research employs multiple linear regression analysis on data from 399 questionnaires to pinpoint the key determinants of farmers'WPLPM.The findings reveal:(1)the"risk perception paradox"exists—farmers have high-risk perception but low WPLPM;(2)the impact of risk perception on WPLPM is tempered by self-efficacy related to fund,learning ability,and operation ability,offering an insight into the"risk perception paradox";and(3)There are significant positive influences of farmers'benefit perception,social network,and perceived responsibility on their WPLPM.Based on these insights,the study offers targeted policy recommendations.
文摘Objective:This study aims to explore the benefit analysis of the same disease in different departments of public hospitals under the DIP payment method.Methods:This study is a retrospective analysis that selected clinical data from patients who received treatment in the Department of Orthopedics and the Department of Acupuncture and Moxibustion at our hospital from January 1,2023,to December 31,2023.The study compared the costs of medications,examinations,treatments,laboratory tests,nursing and other expenses,and total treatment costs between the two departments.It analyzed the cost structure of the two departments and proposed further improvement suggestions.Results:The study results indicated that the total costs in the Department of Acupuncture and Moxibustion were significantly higher than those in the Department of Orthopedics.Among medication costs,the total medication costs in the Department of Orthopedics were higher than those in the Department of Acupuncture and Moxibustion,with costs for Western medicine,proprietary Chinese medicine,and herbal medicine all being higher(p<0.05).Regarding examination costs,consultation fees in the Department of Orthopedics were lower than those in the Department of Acupuncture and Moxibustion,while examination costs were higher(p<0.05).In terms of treatment costs,orthopedic treatment and surgical fees were higher than those in the Department of Acupuncture and Moxibustion(p<0.05).For laboratory test costs,orthopedic laboratory fees were significantly higher than those in the Department of Acupuncture and Moxibustion(p<0.05).Among nursing and other expenses,orthopedic blood transfusion,bed fees,and other expenses were higher than those in the Department of Acupuncture and Moxibustion,while nursing fees were lower(p<0.05).Conclusion:Treatment fees in the Department of Acupuncture and Moxibustion are the core and account for a relatively high proportion of the total costs.The benefits generated by the Department of Orthopedics are primarily derived from medication,examination,and laboratory fees,aligning with the characteristics of combining diagnosis,medication,and surgical intervention in orthopedic treatment.Consultation fees,nursing fees,and bed fees in the Department of Acupuncture and Moxibustion are higher than those in the Department of Orthopedics,indicating a longer treatment cycle in acupuncture,which warrants clinical attention.
文摘In the context of the“dual carbon”goals and digital transformation,technological innovation has become the core driving force for enhancing the management efficiency and overall benefits of building projects.Digital tools(BIM,IoT,AI)are reshaping design and construction collaboration mechanisms,while intelligent equipment(drones,robots)is optimizing work efficiency and safety.Green technologies(low-carbon materials,waste regeneration)are promoting sustainable development.Dynamic management models drive resource allocation and risk warnings through real-time data,achieving precise control over costs,quality,and schedules,with project comprehensive benefits improving by 20–30%.Issues such as insufficient technology integration and high application barriers for small and medium-sized enterprises urgently need to be addressed.Accelerating the industry’s transition towards high-efficiency and low-carbon directions requires policy support,the construction of a technological ecosystem,and the cultivation of versatile talent.
文摘To describe and analyze the current status of benefit-finding research in patients with chronic diseases and to provide a reference for clinical practice and future research in this field.Using Arksey and O’Malley’s scoping review methodology as a framework,we searched PubMed,Web of Science,Science Direct,and CINAHL(4 English databases);and China National Knowledge Infrastructure,the VIP Database for Chinese Technical Periodicals,the Wan Fang Database and China Biomedical Database(4 Chinese databases)for literature on benefit finding in patients with chronic diseases,with a search time frame of construction to April 20,2024,and the literature was screened,extracted,and summarized.A total of 44 papers were included,comprising 18 in Chinese and 26 in English.Among them,a total of 19 assessment tools were used,and the influential factors investigated were categorized into socio-demographic characteristics,disease-related characteristics,psychological and behavioral characteristics,coping styles,and social support.Benefit finding is found to be a positive psychological experience and important for patients with chronic diseases,and the influencing factors are complex and diverse,with a wide range of assessment tools.However,domestic tools lack autonomy and specificity.Clinical caregivers and staff should develop relevant assessment tools and formulate a personalized research plan based on the characteristics of patients with chronic diseases in China to promote the adoption of healthy lifestyles by patients with chronic diseases,improve their self-management ability,and provide a practical basis for improving the quality of life of patients with chronic diseases.
基金financially supported by the National Key Research and Development Program(No.2018YFC1505402)the National Natural Science Foundation of China(No.41871174)+1 种基金the Science and Technology Department of Sichuan Province(No.2020YFSY0013)the Fundamental Research Funds for the Central Universities Project(No.2682019CX19)。
文摘Benefit evaluation of debris flow prevention and control projects was one of the essential contents of debris flow prevention and mitigation work.In order to scientifically and quantitatively evaluate the comprehensive benefit of debris flow prevention and control projects,this study identified nine factors as evaluation indicators from economic,social,and ecological aspects.The projection pursuit(PP) model based on the improved particle swarm optimization(IPSO) algorithm was used to construct a mathematical model to evaluate the benefit of debris flow prevention and control projects.The interpolation method was applied to divide the benefit grades.The debris flow prevention and control projects in Qipan,Taoguan,Chutou,Anjia,and Mozi gullies in Wenchuan County were chosen as typical cases for empirical analysis.The case study revealed that,among the criteria layer indicators,investment per unit of the protected area,investment per unit of the protected population,the amount of water and soil conservation,and reduction rate of accumulation fan had the most significant weights.The social and ecological benefits were found to be the more important in the target layer.The comprehensive benefit of Qipan,Taoguan,Chutou,Anjia,and Mozi gullies was found to be 4.44,4.83,1.95,3,and 2,respectively.The benefit ranking of the five gullies was consistent with their effectiveness in disaster prevention ranking in the flood season of 2019.Therefore,it could prove that the newly-built benefit evaluation model was practical and feasible,and the evaluation results of the sample could be reasonably interpreted,which verified the effectiveness of the methods.
基金Supported by the Anhui Province Higher Education Scientific Research Project(2024AH050643)。
文摘In this paper,we investigate the optimal investment strategy for a target-return pension plan under a Wishart model using stochastic optimal control methods.We consider the fact that mortality and interest rates are affected by a combination of systematic and idiosyncratic factors,which are modelled by a Wishart model with positive values.On this basis,we analyse the correlation between stochastic mortality and stochastic wage rates for plan members,as well as wage movements and financial market volatility.It is shown that financial market parameters and wage rates have a significant impact on the optimal investment strategy.We provide the optimal investment strategy and the optimal yield adjustment strategy for target-return pensions.This study provides a valuable reference for policy formulation and implementation of target-return pension plans in China.
