LIVIVO - Search results -

Search results

Result 1 - 10 of total 483

Search options

Article ; Online: Functional loops: Monitoring functional organization of deep neural networks using algebraic topology.

Zhang, Ben / Lin, Hongwei

Neural networks : the official journal of the International Neural Network Society

2024 Volume 174, Page(s) 106239

Abstract: Various topological methods have emerged in recent years to investigate the inner workings of deep neural networks (DNNs) based on the structural and weight information. However, their effectiveness is restricted due to the stratified structure and ... ...

Abstract	Various topological methods have emerged in recent years to investigate the inner workings of deep neural networks (DNNs) based on the structural and weight information. However, their effectiveness is restricted due to the stratified structure and volatile weight information. In this study, we explore the relationship between functional organizations and network performance using algebraic topology. Our results indicate that functional loops reveal functional interaction patterns of multiple neurons in DNNs. We also propose functional persistence as a measure of functional complexity and develop an early stopping criterion that achieves competitive results without requiring a validation set.
MeSH term(s)	Neural Networks, Computer ; Neurons
Language	English
Publishing date	2024-03-16
Publishing country	United States
Document type	Journal Article
ZDB-ID	740542-x
ISSN	1879-2782 ; 0893-6080
ISSN (online)	1879-2782
ISSN	0893-6080
DOI	10.1016/j.neunet.2024.106239
Database	MEDical Literature Analysis and Retrieval System OnLINE

In stock of ZB MED Cologne/Königswinter

Zs.A 2365: Show issues

Location:
Je nach Verfügbarkeit (siehe Angabe bei Bestand)
bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
Jg. 1995 - 2021: Lesesall (2.OG)
ab Jg. 2022: Lesesaal (EG)

Order via subito

This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

Details ▾
- See ZB MED holdings
- Order with fees

Article ; Online: Digital Transformation and Open Innovation Planning of Response to COVID-19 Outbreak: A Systematic Literature Review and Future Research Agenda.

Zhang, Ben / Ming, Chenxu

International journal of environmental research and public health

2023 Volume 20, Issue 3

Abstract: The COVID-19 pandemic highlights the importance of digital technology in a specific region's epidemic prevention and control, and the digital transformation strategy based on the open innovation system is an emerging way to tackle conceivable outbreaks. ... ...

Abstract	The COVID-19 pandemic highlights the importance of digital technology in a specific region's epidemic prevention and control, and the digital transformation strategy based on the open innovation system is an emerging way to tackle conceivable outbreaks. Based on the bibliometric study of relevant literature data, this paper evaluated the research and development status in this field, and conducted a systematic literature review on the basis of the core articles identified. The results of bibliometric analysis software, including CiteSpace, CitNetExplorer and VOSViewer, showed that the development of relevant research presented rapidity and decentralization, and the evolution process of literature topics further implies the necessity of interdisciplinary and multisectoral collaboration. Furthermore, this paper summarized the specific implementation strategies for constructing an open innovation system, and discussed the role and development plan of digital technology in epidemic prevention and control.
MeSH term(s)	Humans ; Pandemics/prevention & control ; COVID-19/epidemiology ; COVID-19/prevention & control ; Disease Outbreaks ; Bibliometrics ; Digital Technology
Language	English
Publishing date	2023-02-03
Publishing country	Switzerland
Document type	Systematic Review ; Journal Article ; Review ; Research Support, Non-U.S. Gov't
ZDB-ID	2175195-X
ISSN	1660-4601 ; 1661-7827
ISSN (online)	1660-4601
ISSN	1661-7827
DOI	10.3390/ijerph20032731
Database	MEDical Literature Analysis and Retrieval System OnLINE

Full text online

Accessible to users with ZB MED library card

Order via subito

Details ▾
- Full text online
- Order with fees

Article ; Online: A Note on the Connection between Non-Additive Entropy and

Kang, Jin-Wen / Shen, Ke-Ming / Zhang, Ben-Wei

Entropy (Basel, Switzerland)

2023 Volume 25, Issue 6

Abstract: In order to study as a whole a wide part of entropy measures, we introduce a two-parameter non-extensive entropic form with respect to ... ...

Abstract	In order to study as a whole a wide part of entropy measures, we introduce a two-parameter non-extensive entropic form with respect to the
Language	English
Publishing date	2023-06-09
Publishing country	Switzerland
Document type	Journal Article
ZDB-ID	2014734-X
ISSN	1099-4300 ; 1099-4300
ISSN (online)	1099-4300
ISSN	1099-4300
DOI	10.3390/e25060918
Database	MEDical Literature Analysis and Retrieval System OnLINE

Order via subito

Article ; Online: Maternal age-specific risks for adverse birth weights according to gestational weight gain: a prospective cohort in Chinese women older than 30.

Wang, Yidi / Gong, Yunhui / Xu, Yujie / Wang, Xiaoyu / Shan, Shufang / Cheng, Guo / Zhang, Ben

BMC pregnancy and childbirth

2024 Volume 24, Issue 1, Page(s) 36

Abstract: Background: It is unclear whether the effects of abnormal gestational weight gain (GWG) on birth outcomes are differently in women with different maternal ages. This study aimed to investigate maternal age-specific association between GWG and adverse ... ...

Abstract	Background: It is unclear whether the effects of abnormal gestational weight gain (GWG) on birth outcomes are differently in women with different maternal ages. This study aimed to investigate maternal age-specific association between GWG and adverse birth weights in Chinese women older than 30. Methods: 19,854 mother-child dyads were selected from a prospective cohort study in Southwest China between 2019 and 2022. Logistic regression model was used to assess the association between GWG, which defined by the 2009 Institute of Medicine guidelines, and adverse birth weights including large- and small-for-gestational-age (LGA and SGA), stratified by maternal age (31-34 years and ≥ 35 years). Results: In both maternal age groups, excessive and insufficient GWG were associated with increased odds of LGA and SGA, respectively. After women were categorized by pre-pregnancy body mass index, the associations remained significant in women aged 31-34 years, whereas for women aged ≥ 35 years, the association between excessive GWG and the risk of LGA was only significant in normal weight and overweight/obese women, and the significant effect of insufficient GWG on the risk of SGA was only observed in underweight and overweight/obese women. Moreover, among overweight/obese women, the magnitude of the association between insufficient GWG and the risk of SGA was greater in those aged ≥ 35 years (31-34 years: OR 2.08, 95% CI 1.19-3.55; ≥35 years: OR 2.65, 95% CI 1.47-4.74), while the impact of excessive GWG on the risk of LGA was more pronounced in those aged 31-34 years (31-34 years: OR 2.18, 95% CI 1.68-2.88; ≥35 years: OR 1.71, 95% CI 1.30-2.25). Conclusions: The stronger associations between abnormal GWG and adverse birth weights were mainly observed in women aged 31-34 years, and more attention should be paid to this age group.
MeSH term(s)	United States ; Pregnancy ; Female ; Humans ; Birth Weight ; Gestational Weight Gain ; Maternal Age ; Prospective Studies ; Overweight ; Obesity/epidemiology ; China/epidemiology
Language	English
Publishing date	2024-01-05
Publishing country	England
Document type	Journal Article
ZDB-ID	2059869-5
ISSN	1471-2393 ; 1471-2393
ISSN (online)	1471-2393
ISSN	1471-2393
DOI	10.1186/s12884-023-06231-y
Database	MEDical Literature Analysis and Retrieval System OnLINE

Order via subito

Article: Analysis of the hemostatic effect of preset wrapping technique for type A aortic dissection with abnormal coagulation.

Cai, Zhixiang / Yan, Tao / Zhang, Ben / Zhang, Weida / Su, Chenjie / Chen, Hanwei / Wang, Xianyue

Journal of thoracic disease

2024 Volume 16, Issue 2, Page(s) 1223–1233

Abstract: Background: There are many techniques to reduce anastomotic bleeding for the total arch replacement, but hemostasis is sometimes difficult to achieve after surgery for acute dissection, especially in patients with abnormal coagulation (AC). This study ... ...

Abstract	Background: There are many techniques to reduce anastomotic bleeding for the total arch replacement, but hemostasis is sometimes difficult to achieve after surgery for acute dissection, especially in patients with abnormal coagulation (AC). This study aimed to investigate the hemostatic effect and early efficacy of a pre-set bovine pericardium wrapper in the right heart system shunt for total arch replacement in patients with type A aortic dissection (TAAD) and preoperative AC. Methods: A retrospective analysis was conducted on 85 patients with TAAD and AC who underwent total arch replacement between January 2018 and December 2022. The patients were divided into two groups: the preset pericardium group (n=30) and the control group (n=55). Results: There were no significant differences between the two groups in terms of Bentall surgery (ascending aorta replacement with an aortic valve artificial vessel) and cardiac arrest time. However, compared to the control group, the preset pericardium group exhibited a shorter duration of cardiopulmonary bypass (CPB) and operation (P<0.001). Additionally, the preset pericardium group required fewer transfusions of blood products and hemostatic drugs (P<0.05). Moreover, the preset pericardium group had lower 24-hour postoperative mediastinal drainage volume (P<0.001), a lower proportion of bedside hemofiltration (P=0.039), and a shorter duration of mechanical ventilation and stay in the intensive care unit (P=0.014). Although the preset pericardium group showed reductions in in-hospital mortality, re-exploration for bleeding, and neurologic dysfunction, these differences were not statistically significant compared to the control group. Conclusions: This study represents the first investigation into the application of the preset wrapping technique in total arch replacement for TAAD with AC. The results demonstrate that this method can reduce the duration of CPB and operation, decrease postoperative bleeding, and minimize the need for blood transfusion and hemostatic drugs. Consequently, this technique may contribute to early postoperative recovery.
Language	English
Publishing date	2024-02-21
Publishing country	China
Document type	Journal Article
ZDB-ID	2573571-8
ISSN	2077-6624 ; 2072-1439
ISSN (online)	2077-6624
ISSN	2072-1439
DOI	10.21037/jtd-23-1581
Database	MEDical Literature Analysis and Retrieval System OnLINE

Order via subito

Article ; Online: Co-applied biochar and PGPB promote maize growth and reduce CO

Zou, Yiping / Chen, Xinli / Zhang, Shuyue / Zhang, Ben / Bai, Yunxing / Zhang, Tao / Jia, Jianli

Journal of environmental management

2024 Volume 354, Page(s) 120280

Abstract: Coal mining is one of the human activities that has the greatest impact on the global carbon (C) cycle and biodiversity. Biochar and plant growth-promoting bacteria (PGPB) have been both used to improve coal mining degraded soils; however, it is ... ...

Abstract	Coal mining is one of the human activities that has the greatest impact on the global carbon (C) cycle and biodiversity. Biochar and plant growth-promoting bacteria (PGPB) have been both used to improve coal mining degraded soils; however, it is uncertain whether the effects of biochar application on soil respiration and microbial communities are influenced by the presence or absence of PGPB and soil nitrogen (N) level in coal mining degraded soils. A pot experiment was carried out to examine whether the effects of biochar addition (0, 1, 2 and 4% of soil mass) on soil properties, soil respiration, maize growth, and microbial communities were altered by the presence or absence of PGPB (i.e. Sphingobium yanoikuyae BJ1) (0, 200 mL suspension (2 × 10
MeSH term(s)	Humans ; Zea mays ; Coal Mining ; Carbon Dioxide/metabolism ; Soil ; Soil Microbiology ; Charcoal/metabolism ; Bacteria
Chemical Substances	biochar ; Carbon Dioxide (142M471B3J) ; Soil ; Charcoal (16291-96-6)
Language	English
Publishing date	2024-02-13
Publishing country	England
Document type	Journal Article
ZDB-ID	184882-3
ISSN	1095-8630 ; 0301-4797
ISSN (online)	1095-8630
ISSN	0301-4797
DOI	10.1016/j.jenvman.2024.120280
Database	MEDical Literature Analysis and Retrieval System OnLINE

In stock of ZB MED Bonn / Germany

Z 7556: Show issues

Order via subito

Inter-library loan at ZB MED

Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

Details ▾
- See ZB MED holdings
- Order with fees

Article: Exercise, weight maintenance, and nonalcoholic fatty liver disease risk: a Chinese cohort study.

Yang, Chao / Yan, Peijing / Deng, Jiaqi / Li, Yujuan / Jiang, Xia / Zhang, Ben

Frontiers in physiology

2024 Volume 15, Page(s) 1359476

Abstract: Background: ...

Abstract	Background:
Language	English
Publishing date	2024-03-26
Publishing country	Switzerland
Document type	Journal Article
ZDB-ID	2564217-0
ISSN	1664-042X
ISSN	1664-042X
DOI	10.3389/fphys.2024.1359476
Database	MEDical Literature Analysis and Retrieval System OnLINE

Order via subito

Article: Spillover effects of violent attacks and COVID-19 exposure on mental health of health professionals: A two-phase quasi-natural experiments study in Northwest China.

Liu, Ning / Qian, Hong / Zhang, Ben Zhong / Guo, Jing

Global mental health (Cambridge, England)

2023 Volume 10, Page(s) e76

Abstract: The aims of this study were to examine the spillover effects of violent attacks, coronavirus disease-2019 (COVID-19) exposure, and their interactions on health professionals' mental health, and the role of organizational support in their relationships in ...

Abstract	The aims of this study were to examine the spillover effects of violent attacks, coronavirus disease-2019 (COVID-19) exposure, and their interactions on health professionals' mental health, and the role of organizational support in their relationships in China. A two-phase survey data (
Language	English
Publishing date	2023-10-26
Publishing country	England
Document type	Journal Article
ZDB-ID	2806466-5
ISSN	2054-4251
ISSN	2054-4251
DOI	10.1017/gmh.2023.65
Database	MEDical Literature Analysis and Retrieval System OnLINE

Order via subito

Article: Exploring Factors of the Willingness to Accept AI-Assisted Learning Environments: An Empirical Investigation Based on the UTAUT Model and Perceived Risk Theory.

Wu, Wentao / Zhang, Ben / Li, Shuting / Liu, Hehai

Frontiers in psychology

2022 Volume 13, Page(s) 870777

Abstract: Artificial intelligence (AI) technology has been widely applied in many fields. AI-assisted learning environments have been implemented in classrooms to facilitate the innovation of pedagogical models. However, college students' willingness to accept ( ... ...

Abstract	Artificial intelligence (AI) technology has been widely applied in many fields. AI-assisted learning environments have been implemented in classrooms to facilitate the innovation of pedagogical models. However, college students' willingness to accept (WTA) AI-assisted learning environments has been ignored. Exploring the factors that influence college students' willingness to use AI can promote AI technology application in higher education. Based on the Unified Theory of Acceptance and Use of Technology (UTAUT) and the theory of perceived risk, this study identified six factors that influence students' willingness to use AI to analyze their relationships with WTA AI-assisted learning environments. A model including six hypotheses was constructed to test the factors affecting students' WTA. The results indicated that college students showed "weak rejection" of the construction of AI-assisted learning environments. Effort expectancy (EE), performance expectancy (PE), and social influence (SI) were all positively related to college students' WTA AI-assisted learning environments. Psychological risk (PR) significantly negatively influenced students' WTA. The findings of this study will be helpful for carrying out risk communication, which can promote the construction of AI-assisted learning environments.
Language	English
Publishing date	2022-06-24
Publishing country	Switzerland
Document type	Journal Article
ZDB-ID	2563826-9
ISSN	1664-1078
ISSN	1664-1078
DOI	10.3389/fpsyg.2022.870777
Database	MEDical Literature Analysis and Retrieval System OnLINE

Order via subito

Thesis ; Online: Adapting Swarm Applications

Zhang, Ben

A Systematic and Quantitative Approach

2018

Abstract: The swarm refers to the vast collection of networked sensors and actuators installed in our connected world. Many swarm applications generate, transport, distill, and process large streams of data across a wide area in real time. The increasing volume of ...

Abstract	The swarm refers to the vast collection of networked sensors and actuators installed in our connected world. Many swarm applications generate, transport, distill, and process large streams of data across a wide area in real time. The increasing volume of data generated at the edge challenges the existing approaches of directly connecting devices to the cloud. This thesis begins with an overview of emerging swarm and the architecture design trends for swarm applications. The swarm faces challenges from the scarce and variable WAN bandwidth and the heterogeneous compute environment (from low-power microcontrollers to powerful compute units). When network resources or compute resources are insufficient, non-adaptive applications will suffer from increased latency or degraded accuracy. Existing approaches that support adaptation either require extensive developer effort to write manual policies or are limited to application-specific solutions. This thesis proposes a systematic and quantitative approach to build adaptive swarm applications. The solution has three stages: (1) a set of programming abstractions that allow developers to express adaptation options; (2) an automatic profiling tool that learns an accurate profile to characterize resource demands and application performance; (3) a runtime system responsive to environment changes, maximizing application performance guided by the learned profile. We evaluate our methodology with adaptations to network resources and compute resources. For network resources, we present a complete design and implementation of the framework AWStream and several swarm applications: pedestrian detection, augmented reality, and monitoring log analysis. Our experiments show that all applications can achieve sub-second latency with nominal accuracy drops. For compute resources, we focus on improving the profiling efficiency—using Bayesian Optimization to address the large parameter space and profile transfer to address device heterogeneity.
Keywords	Computer science
Subject code	629
Language	ENG
Publishing date	2018-01-01 00:00:01.0
Publisher	University of California, Berkeley
Publishing country	us
Document type	Thesis ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

Full text online

Full text

Inter-library loan at ZB MED

Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

To top

More links

Kategorien

In stock of ZB MED Cologne/Königswinter

Order via subito

Full text online

More links

Kategorien

Order via subito

More links

Kategorien

Order via subito

More links

Kategorien

Order via subito

More links

Kategorien

Order via subito

More links

Kategorien

In stock of ZB MED Bonn / Germany

Order via subito

Inter-library loan at ZB MED

More links

Kategorien

Order via subito

More links

Kategorien

Order via subito

More links

Kategorien

Order via subito

Full text online

More links

Kategorien

Inter-library loan at ZB MED