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< Page ,Total 248 >
Cross-modality interactive attention network for multispectral pedestrian detection EI
期刊论文 | 2019 , 50 , 20-29 | Information Fusion
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Abstract :

Multispectral pedestrian detection is an emerging solution with great promise in many around-the-clock applications, such as automotive driving and security surveillance. To exploit the complementary nature and remedy contradictory appearance between modalities, in this paper, we propose a novel cross-modality interactive attention network that takes full advantage of the interactive properties of multispectral input sources. Specifically, we first utilize the color (RGB) and thermal streams to build up two detached feature hierarchy for each modality, then by taking the global features, correlations between two modalities are encoded in the attention module. Next, the channel responses of halfway feature maps are recalibrated adaptively for subsequent fusion operation. Our architecture is constructed in the multi-scale format to better deal with different scales of pedestrians, and the whole network is trained in an end-to-end way. The proposed method is extensively evaluated on the challenging KAIST multispectral pedestrian dataset and achieves state-of-the-art performance with high efficiency. © 2018

Keyword :

Automotive driving Cross modality Feature hierarchies Interactive properties Modality Fusion Pedestrian detection Security surveillance State-of-the-art performance

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GB/T 7714 Zhang, Lu , Liu, Zhiyong , Zhang, Shifeng et al. Cross-modality interactive attention network for multispectral pedestrian detection [J]. | Information Fusion , 2019 , 50 : 20-29 .
MLA Zhang, Lu et al. "Cross-modality interactive attention network for multispectral pedestrian detection" . | Information Fusion 50 (2019) : 20-29 .
APA Zhang, Lu , Liu, Zhiyong , Zhang, Shifeng , Yang, Xu , Qiao, Hong , Huang, Kaizhu et al. Cross-modality interactive attention network for multispectral pedestrian detection . | Information Fusion , 2019 , 50 , 20-29 .
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Microbial Organic Matter Utilization in High-Arctic Streams: Key Enzymatic Controls. PubMed
期刊论文 | 2019 | Microbial ecology
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Abstract :

In the Arctic, climate changes contribute to enhanced mobilization of organic matter in streams. Microbial extracellular enzymes are important mediators of stream organic matter processing, but limited information is available on enzyme processes in this remote area. Here, we studied the variability of microbial extracellular enzyme activity in high-Arctic fluvial biofilms. We evaluated 12 stream reaches in Northeast Greenland draining areas exhibiting different geomorphological features with contrasting contents of soil organic matter to cover a wide range of environmental conditions. We determined stream nitrogen, phosphorus, and dissolved organic carbon concentrations, quantified algal biomass and bacterial density, and characterized the extracellular enzyme activities involved in catalyzing the cleavage of a range of organic matter compounds (e.g., β-glucosidase, phosphatase, β-xylosidase, cellobiohydrolase, and phenol oxidase). We found significant differences in microbial organic matter utilization among the study streams draining contrasting geomorphological features, indicating a strong coupling between terrestrial and stream ecosystems. Phosphatase and phenol oxidase activities were higher in solifluction areas than in alluvial areas. Besides dissolved organic carbon, nitrogen availability was the main driver controlling enzyme activities in the high-Arctic, which suggests enhanced organic matter mineralization at increased nutrient availability. Overall, our study provides novel information on the controls of organic matter usage by high-Arctic stream biofilms, which is of high relevance due to the predicted increase of nutrient availability in high-Arctic streams in global climate change scenarios.

Keyword :

Geomorphology Nutrients Extracellular enzymes Greenland Biofilm

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GB/T 7714 Pastor Ada , Freixa Anna , Skovsholt Louis J et al. Microbial Organic Matter Utilization in High-Arctic Streams: Key Enzymatic Controls. [J]. | Microbial ecology , 2019 .
MLA Pastor Ada et al. "Microbial Organic Matter Utilization in High-Arctic Streams: Key Enzymatic Controls." . | Microbial ecology (2019) .
APA Pastor Ada , Freixa Anna , Skovsholt Louis J , Wu Naicheng , Romaní Anna M , Riis Tenna . Microbial Organic Matter Utilization in High-Arctic Streams: Key Enzymatic Controls. . | Microbial ecology , 2019 .
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The optimal treatment for improving the cognitive function in elder people diagnosed with mild cognitive impairment incorporating Bayesian network meta-analysis and systematic review. PubMed
期刊论文 | 2019 | Ageing research reviews
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Abstract :

It's widely acknowledged that, as a neurodegenerative aging disease representing an intermediate stage between cognitive intactness and Alzheimer's disease(AD), Mild cognitive impairment(MCI) poses an excessive burden on patients' well-being, family members, health-care providers as well as the whole society. This study focuses on three cognitive interventions referred from Clare and Woods, that is, Cognitive stimulation(CS), Cognitive training(CT) and Cognitive rehabilitation(CR). Our Network meta-analysis(NMA) is aimed at comparing them with each other for evaluating the optimal cognitive intervention to help elderly adults with MCI to improve their cognitive function. We applied extensive strategies on preliminary literature collection to identify relevant randomized controlled trials (RCTs) which scrupulously compare any of these cognitive interventions with each other or instead with control groups such as with placebo or non-active groups as monotherapy in treatment with elder patients diagnosed primarily with MCI in accordance with the Petersen's criterion. Our NMA of cognitive interventions for patients diagnosed with MCI appraised the relative effectiveness of cognitive interventions across trials simultaneously, our study is attempted to summarize available data to suggest that CS (Mean difference [MD] = 0.95, 95% confidence interval [CI]:0.27, 1.70) and CT (MD = 0.70, [CI]:0.11,1.30) were significantly beneficial to help MCI patients to improve their cognition status while CR gets the lowest rank. There's no previous study which has solved the problem of which cognitive intervention is relatively the best intervention for MCI, our study suggested CS was most likely to be the best treatment for improving the cognitive ability of them.

Keyword :

Systematic review Cognitive intervention Bayesian network meta-analysis Mild cognitive impairment

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GB/T 7714 Liang Jing-Hong , Shen Wan-Ting , Li Jia-Yu et al. The optimal treatment for improving the cognitive function in elder people diagnosed with mild cognitive impairment incorporating Bayesian network meta-analysis and systematic review. [J]. | Ageing research reviews , 2019 .
MLA Liang Jing-Hong et al. "The optimal treatment for improving the cognitive function in elder people diagnosed with mild cognitive impairment incorporating Bayesian network meta-analysis and systematic review." . | Ageing research reviews (2019) .
APA Liang Jing-Hong , Shen Wan-Ting , Li Jia-Yu , Qu Xin-Yuan , Li Jing , Jia Rui-Xia et al. The optimal treatment for improving the cognitive function in elder people diagnosed with mild cognitive impairment incorporating Bayesian network meta-analysis and systematic review. . | Ageing research reviews , 2019 .
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MSM Behavior Disclosure Networks and HIV Testing: An Egocentric Network Analysis Among MSM in China. PubMed
期刊论文 | 2019 | AIDS and behavior
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Abstract :

Men who have sex with men (MSM) disclose same-sex behaviors with others, creating disclosure networks. This study examined the characteristics of disclosure networks that are associated with HIV testing among MSM in China through an online nationwide survey. Name-generator questions were used to ask each participant ("ego") to nominate up to five social network members ("alters") with whom he had disclosed same-sex behaviors. Among the 806 men, the average disclosure network size was 4.05. MSM who reported larger disclosure networks were more likely to have been tested for HIV (aOR 1.21, 95% CI 1.08-1.34). The most common disclosure network alters were friends (45.1%), followed by sex partners (18.7%) and healthcare professionals (2.5%). Men who disclosed to healthcare professionals were more likely to test for HIV compared to men who disclosed to family members (aOR 5.43, 95% CI 2.11-14.04). Our findings can inform disclosure network-based interventions to promote MSM HIV testing.

Keyword :

Ego MSM China Network HIV

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GB/T 7714 Cao Bolin , Saffer Adam J , Yang Cui et al. MSM Behavior Disclosure Networks and HIV Testing: An Egocentric Network Analysis Among MSM in China. [J]. | AIDS and behavior , 2019 .
MLA Cao Bolin et al. "MSM Behavior Disclosure Networks and HIV Testing: An Egocentric Network Analysis Among MSM in China." . | AIDS and behavior (2019) .
APA Cao Bolin , Saffer Adam J , Yang Cui , Chen Hexin , Peng Kun , Pan Stephen W et al. MSM Behavior Disclosure Networks and HIV Testing: An Egocentric Network Analysis Among MSM in China. . | AIDS and behavior , 2019 .
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Pay-it-forward strategy to enhance uptake of dual gonorrhea and chlamydia testing among men who have sex with men in China: a pragmatic, quasi-experimental study. PubMed
期刊论文 | 2019 , 19 (1) , 76-82 | The Lancet. Infectious diseases
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Abstract :

Chinese men who have sex with men (MSM) rarely receive gonorrhoea and chlamydia testing. The purpose of this pilot study was to evaluate a pay-it-forward strategy to increase uptake of gonorrhoea and chlamydia testing among MSM.We performed a quasi-experimental pragmatic study to compare a pay-it-forward model with standard of care at two HIV testing sites for MSM in Guangzhou, China: an STD clinic for MSM and a local MSM community-based organisation. All men who arrived at the STD clinic or the community-based organisation were invited to participate. In the pay-it-forward programme, men were offered free gonorrhoea and chlamydia testing and given the option of donating money toward testing for future participants. In the standard-of-care group, men were offered gonorrhoea and chlamydia testing at the standard patient price of ¥150 (about US$21·50). The pay-it-forward programme was implemented for 3 months, after which both sites switched to standard of care offering dual testing for 3 months. The primary outcome for this study was uptake of dual gonorrhoea and chlamydia testing, which we compared using χ<sup>2</sup> test and logistic regression, reported as crude odds ratios (cOR) and adjusted odds ratios (aOR), by adjusting for nationality, marital status, income, and site of testing.The pay-it-forward programme took place from Dec 2, 2017, to Feb 3, 2018, and the standard-of-care control took place from March 11, 2018, to May 1, 2018. 408 men were included in this study. 203 men were offered pay-it-forward, and 205 were offered standard of care. Overall, 109 (54%) of 203 men in the pay-it-forward group and 12 (6%) of 205 men in the standard-of-care group received gonorrhoea and chlamydia testing (cOR 18·65, 9·78-35·54; p<0·0001; aOR 19·73, 95% CI 10·02-38·85; p<0·0001). Of all 121 men who tested, this was the first gonorrhoea test for 97 (80%) men and the first chlamydia test for 104 (86%) men. Five (4%) of these 121 men were diagnosed with gonorrhoea and 15 (12%) were diagnosed with chlamydia. 97 (89%) of 109 men who received testing in the pay-it-forward group donated some money toward testing for future participants.Pay-it-forward might be a sustainable model for expanding integrated HIV testing services among MSM in China.National Institutes of Health, Southern Medical University Dermatology Hospital, Doris Duke Charitable Foundation.

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GB/T 7714 Li Katherine T , Tang Weiming , Wu Dan et al. Pay-it-forward strategy to enhance uptake of dual gonorrhea and chlamydia testing among men who have sex with men in China: a pragmatic, quasi-experimental study. [J]. | The Lancet. Infectious diseases , 2019 , 19 (1) : 76-82 .
MLA Li Katherine T et al. "Pay-it-forward strategy to enhance uptake of dual gonorrhea and chlamydia testing among men who have sex with men in China: a pragmatic, quasi-experimental study." . | The Lancet. Infectious diseases 19 . 1 (2019) : 76-82 .
APA Li Katherine T , Tang Weiming , Wu Dan , Huang Wenting , Wu Feng , Lee Amy et al. Pay-it-forward strategy to enhance uptake of dual gonorrhea and chlamydia testing among men who have sex with men in China: a pragmatic, quasi-experimental study. . | The Lancet. Infectious diseases , 2019 , 19 (1) , 76-82 .
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The certification effect of government R&D subsidies on innovative entrepreneurial firms' access to bank finance: evidence from China SSCI
期刊论文 | 2019 , 52 (1) , 241-259 | SMALL BUSINESS ECONOMICS
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Abstract :

In this paper, we argue that obtaining government R&D subsidies has a certification effect and is used by innovative entrepreneurial firms as a legitimation strategy to access bank finance. We extend the extant literature on the certification effect by combining legitimacy theory with information asymmetry to build our theoretical framework. We test our theoretical model under China's unique institutional setting, in particular, the weak intellectual property rights (IPR) protection. Using 549 listed and 192 unlisted Chinese innovative entrepreneurial firms from 2009 to 2013, we find a positive certification effect on the acquisition of bank loans for all those sample firms. This positive effect is more profound in unlisted firms in our sample than the listed ones. We further find that regional variation of IPR protection has a moderating effect on the effectiveness of the certification. The certification effect is more significant in those regions where IPR protection is weaker.

Keyword :

Certification Legitimacy China IPR protection Financial constraints Government R&D subsidies Innovative entrepreneurial firms

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GB/T 7714 Li, Li , Chen, Jean , Gao, Hongli et al. The certification effect of government R&D subsidies on innovative entrepreneurial firms' access to bank finance: evidence from China [J]. | SMALL BUSINESS ECONOMICS , 2019 , 52 (1) : 241-259 .
MLA Li, Li et al. "The certification effect of government R&D subsidies on innovative entrepreneurial firms' access to bank finance: evidence from China" . | SMALL BUSINESS ECONOMICS 52 . 1 (2019) : 241-259 .
APA Li, Li , Chen, Jean , Gao, Hongli , Xie, Li . The certification effect of government R&D subsidies on innovative entrepreneurial firms' access to bank finance: evidence from China . | SMALL BUSINESS ECONOMICS , 2019 , 52 (1) , 241-259 .
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Testing the application of participatory MCA: The case of the South Fylde Line SSCI
期刊论文 | 2019 , 73 , 62-70 | TRANSPORT POLICY
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In recent decades, many authors have claimed that, compared to traditional appraisal techniques such as cost-benefit analysis (CBA), participatory multi-criteria analysis (MCA) methodologies represent a more effective approach to appraising transport projects, largely due to the range of criteria able to be used and the ability to reflect multiple viewpoints. This paper applies a participatory MCA process to appraise potential rail investments in North West England. The results of this analysis show that, while promising, participatory MCA processes also have several limitations, and successful application is subject to several issues which require careful consideration, including selection of participants, identification of appraisal criteria, and the process of assessing impacts.

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GB/T 7714 Dean, M. , Hickman, R. , Chen, C. -L. . Testing the application of participatory MCA: The case of the South Fylde Line [J]. | TRANSPORT POLICY , 2019 , 73 : 62-70 .
MLA Dean, M. et al. "Testing the application of participatory MCA: The case of the South Fylde Line" . | TRANSPORT POLICY 73 (2019) : 62-70 .
APA Dean, M. , Hickman, R. , Chen, C. -L. . Testing the application of participatory MCA: The case of the South Fylde Line . | TRANSPORT POLICY , 2019 , 73 , 62-70 .
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Is constant returns-to-scale a restrictive assumption for sector-level empirical macroeconomics? The case of Europe SSCI
期刊论文 | 2019 , 26 (3) , 231-236 | APPLIED ECONOMICS LETTERS
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Assuming constant returns-to-scale is commonly agreed for empirical macroeconomic studies when countries are of interest. Recently, an increasing number of works have started to look at sectors building on the same assumption. In this letter, we question the reliability of this assumption for 10 European sectors for the period 1995-2014, for different production factor combinations. We make use of a simple sample-based nonparametric test that does not require any assumptions for any aspect of the production process. Our results suggest that, in general, this assumption is rather acceptable and that the specification with only capital and labour is the best in this case.

Keyword :

Macroeconomics returns-to-scale nonparametric sectors Europe

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GB/T 7714 Walheer, Barnabe . Is constant returns-to-scale a restrictive assumption for sector-level empirical macroeconomics? The case of Europe [J]. | APPLIED ECONOMICS LETTERS , 2019 , 26 (3) : 231-236 .
MLA Walheer, Barnabe . "Is constant returns-to-scale a restrictive assumption for sector-level empirical macroeconomics? The case of Europe" . | APPLIED ECONOMICS LETTERS 26 . 3 (2019) : 231-236 .
APA Walheer, Barnabe . Is constant returns-to-scale a restrictive assumption for sector-level empirical macroeconomics? The case of Europe . | APPLIED ECONOMICS LETTERS , 2019 , 26 (3) , 231-236 .
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LTV policy as a macroprudential tool and its effects on residential mortgage loans SSCI
期刊论文 | 2019 , 37 , 89-103 | JOURNAL OF FINANCIAL INTERMEDIATION
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Since the early 2000s, macroprudential policy has increasingly become part of the regulatory and supervisory framework. Likewise, the housing market has been at the center of the debate on systemic financial risk prevention. Among macroprudential tools, the purpose of the loan-to-value (LTV) ratio is to constrain mortgage loan creation. This paper is unique in that it analyzes the effectiveness of LTV on mortgage lending moderation using a large sample of more than 4000 banks from 46 countries. The analysis suggests mortgage loans have been successfully curbed in countries with a LTV policy. Size and non-performing loans are the two key characteristics to the effectiveness of LTV. When nonlinearities are considered, the average effect of LTV can be very large; however, it becomes much less effective with large banks and banks with bad loans. Our results suggest the inclusion of other macroprudential tools may have complementary effects to LTV, and for large size banks in particular.

Keyword :

Mortgage credit creation Macroprudential policy Financial stability

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GB/T 7714 Morgan, Peter J. , Regis, Paulo Jose , Salike, Nimesh . LTV policy as a macroprudential tool and its effects on residential mortgage loans [J]. | JOURNAL OF FINANCIAL INTERMEDIATION , 2019 , 37 : 89-103 .
MLA Morgan, Peter J. et al. "LTV policy as a macroprudential tool and its effects on residential mortgage loans" . | JOURNAL OF FINANCIAL INTERMEDIATION 37 (2019) : 89-103 .
APA Morgan, Peter J. , Regis, Paulo Jose , Salike, Nimesh . LTV policy as a macroprudential tool and its effects on residential mortgage loans . | JOURNAL OF FINANCIAL INTERMEDIATION , 2019 , 37 , 89-103 .
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Collective decision-making of voters with heterogeneous levels of rationality SSCI
期刊论文 | 2019 , 178 (1-2) , 267-287 | PUBLIC CHOICE
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This paper studies the collective decision-making processes of voters who have heterogeneous levels of rationality. Specifically, we consider a voting body consisting of both rational and sincere voters. Rational voters vote strategically, correctly using both their private information and the information implicit in other voters' actions to make decisions; sincere voters vote according to their private information alone. We first characterize the conditions under which the presence of sincere voters increases, reduces, or does not alter the probabilities of making correct collective decisions. We also discuss how the probabilities change when the incidence of sincere voters in the population varies. We then characterize the necessary and sufficient condition under which informational efficiency can be achieved when sincere voters coexist with rational voters. We find that when sincere voters are present, supermajority rules with high consensus levels are not as desirable as they are in rational voting models, as informational efficiency fails under such voting rules.

Keyword :

Informational efficiency Heterogeneous levels of rationality Collective decision-making Information aggregation

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GB/T 7714 Xu, Youzong . Collective decision-making of voters with heterogeneous levels of rationality [J]. | PUBLIC CHOICE , 2019 , 178 (1-2) : 267-287 .
MLA Xu, Youzong . "Collective decision-making of voters with heterogeneous levels of rationality" . | PUBLIC CHOICE 178 . 1-2 (2019) : 267-287 .
APA Xu, Youzong . Collective decision-making of voters with heterogeneous levels of rationality . | PUBLIC CHOICE , 2019 , 178 (1-2) , 267-287 .
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