120 research outputs found
Sentence Specified Dynamic Video Thumbnail Generation
With the tremendous growth of videos over the Internet, video thumbnails,
providing video content previews, are becoming increasingly crucial to
influencing users' online searching experiences. Conventional video thumbnails
are generated once purely based on the visual characteristics of videos, and
then displayed as requested. Hence, such video thumbnails, without considering
the users' searching intentions, cannot provide a meaningful snapshot of the
video contents that users concern. In this paper, we define a distinctively new
task, namely sentence specified dynamic video thumbnail generation, where the
generated thumbnails not only provide a concise preview of the original video
contents but also dynamically relate to the users' searching intentions with
semantic correspondences to the users' query sentences. To tackle such a
challenging task, we propose a novel graph convolved video thumbnail pointer
(GTP). Specifically, GTP leverages a sentence specified video graph
convolutional network to model both the sentence-video semantic interaction and
the internal video relationships incorporated with the sentence information,
based on which a temporal conditioned pointer network is then introduced to
sequentially generate the sentence specified video thumbnails. Moreover, we
annotate a new dataset based on ActivityNet Captions for the proposed new task,
which consists of 10,000+ video-sentence pairs with each accompanied by an
annotated sentence specified video thumbnail. We demonstrate that our proposed
GTP outperforms several baseline methods on the created dataset, and thus
believe that our initial results along with the release of the new dataset will
inspire further research on sentence specified dynamic video thumbnail
generation. Dataset and code are available at https://github.com/yytzsy/GTP
County-level CO2 emissions and sequestration in China during 1997â2017
With the implementation of Chinaâs top-down CO2 emissions reduction strategy, the regional differences should be considered. As the most basic governmental unit in China, counties could better capture the regional heterogeneity than provinces and prefecture-level city, and county-level CO2 emissions could be used for the development of strategic policies tailored to local conditions. However, most of the previous accounts of CO2 emissions in China have only focused on the national, provincial, or city levels, owing to limited methods and smaller-scale data. In this study, a particle swarm optimization-back propagation (PSO-BP) algorithm was employed to unify the scale of DMSP/OLS and NPP/VIIRS satellite imagery and estimate the CO2 emissions in 2,735 Chinese counties during 1997â2017. Moreover, as vegetation has a significant ability to sequester and reduce CO2 emissions, we calculated the county-level carbon sequestration value of terrestrial vegetation. The results presented here can contribute to existing data gaps and enable the development of strategies to reduce CO2 emissions in China
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Background. The dietary usage of carrageenan as common food additive has increased observably over the last 50 years. But there is substantial controversy about its safety. Methods. We investigated whether the Îș-carrageenan could enhance lipopolysaccharide-induced IL-8 expression by studying its actions on the TLR4-NF-ÎșB pathway. The aggravating effect of Îș-carrageenan on Citrobacter freundii DBS100-induced intestinal inflammation was also investigated in a mouse model. Results. Our data show that Îș-carrageenan pretreatment promoted LPS-induced IL-8 expression in HT-29 cells. Although CD14, MD-2, and TLR4 were upregulated, the binding of LPS was not enhanced. However, the pathway of Bcl10-NF-ÎșB was triggered. Interestingly, Îș-carrageenan competitively blocked the binding of FITC-LPS. Furthermore, pretreatment with Îș-carrageenan for one week previous to gavage with C. freundii DBS100 markedly aggravated weight loss, mortality, and colonic damage. The secretion of cytokines was unbalanced and the ratio of Tregs was decreased significantly. In addition, Îș-carrageenan, together with C. freundii DBS100, enhanced the transcription and secretion of TLR4 and NF-ÎșB. Conclusions. Îș-Carrageenan can synergistically activate LPS-induced inflammatory through the Bcl10-NF-ÎșB pathway, as indicated by its aggravation of C. freundii DBS100-induced colitis in mice. General Significance. Our results suggest that Îș-carrageenan serves as a potential inflammatory agent that magnifies existing intestinal inflammation
A comprehensive city-level final energy consumption dataset including renewable energy for China, 2005â2021
The role of China is increasingly pivotal in climate change mitigation, and the formulation of energy conservation and emission reduction policies requires city-level information. The effectiveness of national policy implementation is contingent upon the support and involvement of local governments. Accurate data on final energy consumption is vital to formulate and implement city-level energy transitions and energy conservation and emission reduction policies. However, there is a dearth of data sources pertaining to Chinaâs city-level final energy consumption. To address these gaps, we developed computational modeling techniques along with top-down and downscaling methods to estimate Chinaâs city-level final energy consumption. In this way, we compiled a final energy consumption inventory for 331 Chinese cities from 2005 to 2021, covering seven economic sectors, 30 fossil fuels, and four clean power sources. Moreover, we discussed the validity of the estimation results from multiple perspectives to enhance estimation accuracy. This dataset can be utilized for analysis in various cutting-edge research fields such as energy transition dynamics, transition risk management strategies, and policy formulation processes
A comprehensive city-level final energy consumption dataset including renewable energy for China, 2005â2021
The role of China is increasingly pivotal in climate change mitigation, and the formulation of energy conservation and emission reduction policies requires city-level information. The effectiveness of national policy implementation is contingent upon the support and involvement of local governments. Accurate data on final energy consumption is vital to formulate and implement city-level energy transitions and energy conservation and emission reduction policies. However, there is a dearth of data sources pertaining to Chinaâs city-level final energy consumption. To address these gaps, we developed computational modeling techniques along with top-down and downscaling methods to estimate Chinaâs city-level final energy consumption. In this way, we compiled a final energy consumption inventory for 331 Chinese cities from 2005 to 2021, covering seven economic sectors, 30 fossil fuels, and four clean power sources. Moreover, we discussed the validity of the estimation results from multiple perspectives to enhance estimation accuracy. This dataset can be utilized for analysis in various cutting-edge research fields such as energy transition dynamics, transition risk management strategies, and policy formulation processes
Associations between estradiol and hyperuricemia and the mediating effects of TC, TG, and TyG: NHANES 2013â2016
ObjectivesTo explore the relationship between estradiol (E2) and the incidence of hyperuricemia (HUA) in adult women and to explore whether glucolipid metabolism disorders play a mediating role in mediating this relationship.MethodsA total of 2,941 participants aged 20â65 years were included in the National Health and Nutrition Examination Survey (NHANES) 2013â2016. Multivariate logistic regression analysis was performed to evaluate the correlations of E2 with HUA. Multivariate linear regression analysis was performed to evaluate the associations between E2 and triglyceride (TG), total cholesterol (TC), and the triglyceride-glucose index (TyG). The restricted cubic spline (RCS) model was used to further explore the association between E2 and HUA and between TG, TC, and TyG and HUA. Mediation analyses were performed to examine whether TC, TG, and TyG mediated the relationship between E2 and HUA.ResultsAfter adjusting for covariates, logistic regression revealed that ln(E2) was significantly associated with HUA in the female subgroup (p = 0.035) and that the incidence of HUA tended to increase with decreasing ln(E2) (p for trend = 0.026). Linear regression showed that E2 was significantly associated with TC (p = 0.032), TG (p = 0.019), and TyG (p = 0.048). The RCS model showed that ln(E2) was linearly correlated with the incidence of HUA (p-overall = 0.0106, p-non-linear = 0.3030). TC and TyG were linearly correlated with HUA (TC: p-overall = 0.0039, p-non-linear = 0.4774; TyG: p-overall = 0.0082, p-non-linear = 0.0663), whereas TG was non-linearly correlated with HUA. Mediation analyses revealed that TC, TG, and TyG significantly mediated the relationship between ln(E2) and HUA (TC, indirect effect: â0.00148, 7.5%, p = 0.008; TG, indirect effect: â0.00062, 3.1%, p = 0.004; TyG, indirect effect: â0.00113, 5.6%, p = 0.016).ConclusionIn conclusion, this study demonstrated that compared with women aged 20â45 years, women aged 45â55 years and 55â65 years had lower E2 levels and a greater incidence of HUA. E2 levels and the incidence of HUA were negatively associated in female individuals but not in male individuals. In addition, TC, TG, and TyG, which are markers of glucolipid metabolism, played a mediating role in the association between E2 and HUA
An international Delphi consensus statement on metabolic dysfunction-associated fatty liver disease and risk of chronic kidney disease
Background: With the rising global prevalence of fatty liver disease related to metabolic dysfunction, the association of this common liver condition with chronic kidney disease (CKD) has become increasingly evident. In 2020, the more inclusive term metabolic dysfunction-associated fatty liver disease (MAFLD) was proposed to replace the term non-alcoholic fatty liver disease (NAFLD). The observed association between MAFLD and CKD and our understanding that CKD can be a consequence of underlying metabolic dysfunction support the notion that individuals with MAFLD are at higher risk of having and developing CKD compared with those without MAFLD. However, to date, there is no appropriate guidance on CKD in individuals with MAFLD. Furthermore, there has been little attention paid to the link between MAFLD and CKD in the Nephrology community. Methods and Results: Using a Delphi-based approach, a multidisciplinary panel of 50 international experts from 26 countries reached a consensus on some of the open research questions regarding the link between MAFLD and CKD. Conclusions: This Delphi-based consensus statement provided guidance on the epidemiology, mechanisms, management and treatment of MAFLD and CKD, as well as the relationship between the severity of MAFLD and risk of CKD, which establish a framework for the early prevention and management of these two common and interconnected diseases.Fil: Sun, Dan Qin. Jiangnan University Medical Center; China. Nantong University; ChinaFil: Targher, Giovanni. Azienda Ospedaliera Universitaria Integrata Verona; ItaliaFil: Byrne, Christopher D.. University of Southampton; Reino UnidoFil: Wheeler, David C.. University College London; Estados UnidosFil: Wong, Vincent Wai Sun. Chinese University of Hong Kong; ChinaFil: Fan, Jian Gao. Shanghai Jiao Tong University; ChinaFil: Tilg, Herbert. Medical University Innsbruck; AustriaFil: Yuan, Wei Jie. Shanghai Jiao Tong University; ChinaFil: Wanner, Christoph. WĂŒrzburg University Clinic; AlemaniaFil: Gao, Xin. Fudan University; ChinaFil: Long, Michelle T.. Boston University School of Medicine; Estados UnidosFil: Kanbay, Mehmet. Koc University School of Medicine; TurquĂaFil: Nguyen, Mindie H.. Stanford University Medical Center; Estados UnidosFil: Navaneethan, Sankar D.. Baylor College of Medicine; Estados UnidosFil: Yilmaz, Yusuf. Marmara University; TurquĂa. Recep Tayyip ErdoÄan University; TurquĂaFil: Huang, Yuli. Southern Medical University; ChinaFil: Gani, Rino A.. Universitas Indonesia; IndonesiaFil: Marzuillo, Pierluigi. UniversitĂ della Campania âLuigi Vanvitelliâ; ItaliaFil: Boursier, JĂ©rĂŽme. Angers University; FranciaFil: Zhang, Huijie. Southern Medical University; ChinaFil: Jung, Chan Young. Yonsei University; Corea del SurFil: Chai, Jin. Army Medical University; ChinaFil: Valenti, Luca. UniversitĂ degli Studi di Milano; ItaliaFil: Papatheodoridis, George. Kapodistrian University of Athens; GreciaFil: Sookoian, Silvia Cristina. Centro de Investigacion Traslacional En Salud (cenitres) ; Facultad de Cs. de la Salud ; Universidad Maimonides; . Universidad Abierta Interamericana; Argentina. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas; ArgentinaFil: Chunsun, Dai. Nanjing Medical University; ChinaFil: Eslam, Mohammed. University of Sydney; AustraliaFil: Wei, Lai. Tsinghua University; ChinaFil: George, Jacob. University of Sydney; AustraliaFil: Zheng, Ming Hua. Wenzhou Medical University; Chin
An international Delphi consensus statement on metabolic dysfunction-associated fatty liver disease and risk of chronic kidney disease
BACKGROUND:
With the rising global prevalence of fatty liver disease related to metabolic dysfunction, the association of this common liver condition with chronic kidney disease (CKD) has become increasingly evident. In 2020, the more inclusive term metabolic dysfunction-associated fatty liver disease (MAFLD) was proposed to replace the term non-alcoholic fatty liver disease (NAFLD). The observed association between MAFLD and CKD and our understanding that CKD can be a consequence of underlying metabolic dysfunction support the notion that individuals with MAFLD are at higher risk of having and developing CKD compared with those without MAFLD. However, to date, there is no appropriate guidance on CKD in individuals with MAFLD. Furthermore, there has been little attention paid to the link between MAFLD and CKD in the Nephrology community.
METHODS AND RESULTS:
Using a Delphi-based approach, a multidisciplinary panel of 50 international experts from 26 countries reached a consensus on some of the open research questions regarding the link between MAFLD and CKD.
CONCLUSIONS:
This Delphi-based consensus statement provided guidance on the epidemiology, mechanisms, management and treatment of MAFLD and CKD, as well as the relationship between the severity of MAFLD and risk of CKD, which establish a framework for the early prevention and management of these two common and interconnected diseases
Seizing the window of opportunity to mitigate the impact of climate change on the health of Chinese residents
The health threats posed by climate change in China are increasing rapidly. Each province faces different health risks. Without a timely and adequate response, climate change will impact lives and livelihoods at an accelerated rate and even prevent the achievement of the Healthy and Beautiful China initiatives. The 2021 China Report of the Lancet Countdown on Health and Climate Change is the first annual update of Chinaâs Report of the Lancet Countdown. It comprehensively assesses the impact of climate change on the health of Chinese households and the measures China has taken. Invited by the Lancet committee, Tsinghua University led the writing of the report and cooperated with 25 relevant institutions in and outside of China. The report includes 25 indicators within five major areas (climate change impacts, exposures, and vulnerability; adaptation, planning, and resilience for health; mitigation actions and health co-benefits; economics and finance; and public and political engagement) and a policy brief. This 2021 China policy brief contains the most urgent and relevant indicators focusing on provincial data: The increasing health risks of climate change in China; mixed progress in responding to climate change. In 2020, the heatwave exposures per person in China increased by 4.51 d compared with the 1986â2005 average, resulting in an estimated 92% increase in heatwave-related deaths. The resulting economic cost of the estimated 14500 heatwave-related deaths in 2020 is US$176 million. Increased temperatures also caused a potential 31.5 billion h in lost work time in 2020, which is equivalent to 1.3% of the work hours of the total national workforce, with resulting economic losses estimated at 1.4% of Chinaâs annual gross domestic product. For adaptation efforts, there has been steady progress in local adaptation planning and assessment in 2020, urban green space growth in 2020, and health emergency management in 2019. 12 of 30 provinces reported that they have completed, or were developing, provincial health adaptation plans. Urban green space, which is an important heat adaptation measure, has increased in 18 of 31 provinces in the past decade, and the capacity of Chinaâs health emergency management increased in almost all provinces from 2018 to 2019. As a result of Chinaâs persistent efforts to clean its energy structure and control air pollution, the premature deaths due to exposure to ambient particulate matter of 2.5 ÎŒm or less (PM2.5) and the resulting costs continue to decline. However, 98% of Chinaâs cities still have annual average PM2.5 concentrations that are more than the WHO guideline standard of 10 ÎŒg/m3. It provides policymakers and the public with up-to-date information on Chinaâs response to climate change and improvements in health outcomes and makes the following policy recommendations. (1) Promote systematic thinking in the related departments and strengthen multi-departmental cooperation. Sectors related to climate and development in China should incorporate health perspectives into their policymaking and actions, demonstrating WHOâs and President Xi Jinpingâs so-called health-in-all-policies principle. (2) Include clear goals and timelines for climate-related health impact assessments and health adaptation plans at both the national and the regional levels in the National Climate Change Adaptation Strategy for 2035. (3) Strengthen Chinaâs climate mitigation actions and ensure that health is included in Chinaâs pathway to carbon neutrality. By promoting investments in zero-carbon technologies and reducing fossil fuel subsidies, the current rebounding trend in carbon emissions will be reversed and lead to a healthy, low-carbon future. (4) Increase awareness of the linkages between climate change and health at all levels. Health professionals, the academic community, and traditional and new media should raise the awareness of the public and policymakers on the important linkages between climate change and health.</p
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