LIVIVO - The Search Portal for Life Sciences

zur deutschen Oberfläche wechseln
Advanced search

Search results

Result 1 - 10 of total 846

Search options

  1. Book ; Online ; E-Book: Elderly Health Services and Remote Health Monitoring

    Chen, Lumin / Li, Yihao / Han, Lina / Yuan, Liang / Sun, Yuxiang / Tang, Xiaolu

    (SpringerBriefs in Applied Sciences and Technology,)

    2020  

    Abstract: This book focuses on typical health services and remote monitoring methods, such as visual recognition and deep learning. Chiefly addressing the design and simulation of rehabilitation devices, and the evaluation of their effects on various diseases, it ... ...

    Author's details by Lumin Chen, Yihao Li, Lina Han, Liang Yuan, Yuxiang Sun, Xiaolu Tang
    Series title SpringerBriefs in Applied Sciences and Technology,
    Abstract This book focuses on typical health services and remote monitoring methods, such as visual recognition and deep learning. Chiefly addressing the design and simulation of rehabilitation devices, and the evaluation of their effects on various diseases, it offers a valuable resource for professional researchers and graduate students in the fields of elderly medicine, signal processing, and rehabilitation.
    Keywords System theory ; Mathematical models ; Computer science—Mathematics ; Computer mathematics ; Algorithms ; Systems Theory, Control ; Mathematical Modeling and Industrial Mathematics ; Mathematical Applications in Computer Science ; Mathematics of Algorithmic Complexity
    Subject code 617.03
    Language English
    Size 1 online resource (X, 81 p. 73 illus., 59 illus. in color.)
    Edition 1st ed. 2020.
    Publisher Springer Singapore ; Imprint: Springer
    Publishing place Singapore
    Document type Book ; Online ; E-Book
    Remark Zugriff für angemeldete ZB MED-Nutzerinnen und -Nutzer
    ISBN 981-15-7154-6 ; 981-15-7153-8 ; 978-981-15-7154-1 ; 978-981-15-7153-4
    DOI 10.1007/978-981-15-7154-1
    Database ZB MED Catalogue: Medicine, Health, Nutrition, Environment, Agriculture

    Kategorien

  2. Article ; Online: Hybrid parameters for fluid identification using an enhanced quantum neural network in a tight reservoir

    Dejiang Luo / Yuan Liang / Yuanjun Yang / Xingyue Wang

    Scientific Reports, Vol 14, Iss 1, Pp 1-

    2024  Volume 13

    Abstract: Abstract This paper proposes a fluid classifier for a tight reservoir using a quantum neural network (QNN). It is difficult to identify the fluid in tight reservoirs, and the manual interpretation of logging data, which is an important means to identify ... ...

    Abstract Abstract This paper proposes a fluid classifier for a tight reservoir using a quantum neural network (QNN). It is difficult to identify the fluid in tight reservoirs, and the manual interpretation of logging data, which is an important means to identify the fluid properties, has the disadvantages of a low recognition rate and non-intelligence, and an intelligent algorithm can better identify the fluid. For tight reservoirs, the logging response characteristics of different fluid properties and the sensitivity and relevance of well log parameter and rock physics parameters to fluid identification are analyzed, and different sets of input parameters for fluid identification are constructed. On the basis of quantum neural networks, a new method for combining sample quantum state descriptions, sensitivity analysis of input parameters, and wavelet activation functions for optimization is proposed. The results of identifying the dry layer, gas layer, and gas–water co-layer in the tight reservoir in the Sichuan Basin of China show that different input parameters and activation functions affect recognition performance. The proposed quantum neural network based on hybrid parameters and a wavelet activation function has higher fluid identification accuracy than the original quantum neural network model, indicating that this method is effective and warrants promotion and application.
    Keywords Medicine ; R ; Science ; Q
    Subject code 550
    Language English
    Publishing date 2024-01-01T00:00:00Z
    Publisher Nature Portfolio
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    More links

    Kategorien

  3. Article ; Online: Sub-axillary cosmetic incision versus single-incision thoracoscopic surgery for primary spontaneous pneumothorax.

    Zheng, Yuan-Liang / Huang, Ri-Sheng

    Journal of cardiothoracic surgery

    2023  Volume 18, Issue 1, Page(s) 228

    Abstract: Background: In recent years, single-incision thoracoscopic surgery (SITS) has been increasingly applied as an optimal treatment option for primary spontaneous pneumothorax (PSP). However, most SITS techniques are used in the fourth to sixth intercostal ... ...

    Abstract Background: In recent years, single-incision thoracoscopic surgery (SITS) has been increasingly applied as an optimal treatment option for primary spontaneous pneumothorax (PSP). However, most SITS techniques are used in the fourth to sixth intercostal space between the anterior axillary and mid axillary lines. To find out more concealed incisions, this study performed PSP surgery via the sub-axillary cosmetic incision (SACI) technique.
    Methods: A total of 128 PSP patients were subjected to video-assisted thoracoscopic surgery (VATS) between January 2017 and January 2019 at our institution. These patients were evaluated and assigned into SACI (n = 21) and SITS (n = 57) groups. Propensity score matching (PSM) was performed based on patients' backgrounds, and the enrolled cohort was divided into 21 pairs. The incision satisfaction was assessed at 2 weeks and 6 months post-surgery.
    Results: The 21 pairs with matching baseline characteristics in the two groups did not exhibit significant differences in their backgrounds and surgical results. However, compared with the SITS group, the operation time was longer in the SACI group (p = 0.013). There were no post-operative complications in both groups. At 2 weeks and 6 months, incision satisfaction scores in the SACI group were significantly lower than those in the SITS group (p = 0.022 and p = 0.039, respectively). There were no recurrences of ipsilateral pneumothorax in both groups.
    Conclusions: SACI is a safe and feasible surgical method for PSP treatment. In addition, incision concealment can be used for patients with incision needs.
    MeSH term(s) Humans ; Pneumothorax/surgery ; Surgical Wound ; Thoracic Surgery, Video-Assisted ; Postoperative Complications ; Axilla
    Language English
    Publishing date 2023-07-12
    Publishing country England
    Document type Journal Article
    ZDB-ID 2227224-0
    ISSN 1749-8090 ; 1749-8090
    ISSN (online) 1749-8090
    ISSN 1749-8090
    DOI 10.1186/s13019-023-02319-w
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  4. Article ; Online: Study on the influencing factors and profitability of horizontal ecological compensation mechanism in Yellow River Basin of China.

    Liu, Yiwen / Yuan, Liang

    Environmental science and pollution research international

    2023  Volume 30, Issue 37, Page(s) 87353–87367

    Abstract: Horizontal ecological compensation mechanism provides solutions for cross-domain protection of ecological environment, and the key to its implementation depends on the establishment of a suitable incentive mechanism of economic benefits to influence the ... ...

    Abstract Horizontal ecological compensation mechanism provides solutions for cross-domain protection of ecological environment, and the key to its implementation depends on the establishment of a suitable incentive mechanism of economic benefits to influence the conservation behavior of each interest body. This article constructs a horizontal ecological compensation mechanism for the Yellow River Basin through indicator variables to analyze the profitability of the participating subjects. Based on data from 83 cities in the Yellow River Basin in 2019, an empirical study was conducted using a binary unordered logit regression model to examine the regional benefits generated by the horizontal ecological compensation mechanism in the Yellow River Basin. The level of urban economic development and ecological environment management significantly affects the profitability of horizontal ecological compensation mechanisms in the Yellow River basin. The heterogeneity analysis finds that the profitability of the horizontal ecological compensation mechanism in the Yellow River basin is stronger in the upstream central and western regions, which are more likely to produce better ecological compensation benefits as recipients of compensation funds. Governments in the Yellow River Basin should strengthen cross-regional cooperation, continuously improve the capacity building and modernization of ecological and environmental governance in the basin, and provide solid institutional guarantees for environmental pollution management in China.
    MeSH term(s) Humans ; Rivers ; Conservation of Natural Resources ; Environmental Policy ; China ; Environmental Pollution
    Language English
    Publishing date 2023-07-08
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 1178791-0
    ISSN 1614-7499 ; 0944-1344
    ISSN (online) 1614-7499
    ISSN 0944-1344
    DOI 10.1007/s11356-023-28243-z
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  5. Article ; Online: Equilibrium and Non-Equilibrium Lattice Dynamics of Anharmonic Systems

    Keivan Esfarjani / Yuan Liang

    Entropy, Vol 24, Iss 1585, p

    2022  Volume 1585

    Abstract: In this review, motivated by the recent interest in high-temperature materials, we review our recent progress in theories of lattice dynamics in and out of equilibrium. To investigate thermodynamic properties of anharmonic crystals, the self-consistent ... ...

    Abstract In this review, motivated by the recent interest in high-temperature materials, we review our recent progress in theories of lattice dynamics in and out of equilibrium. To investigate thermodynamic properties of anharmonic crystals, the self-consistent phonon theory was developed, mainly in the 1960s, for rare gas atoms and quantum crystals. We have extended this theory to investigate the properties of the equilibrium state of a crystal, including its unit cell shape and size, atomic positions and lattice dynamical properties. Using the equation-of-motion method combined with the fluctuation–dissipation theorem and the Donsker–Furutsu–Novikov (DFN) theorem, this approach was also extended to investigate the non-equilibrium case where there is heat flow across a junction or an interface. The formalism is a classical one and therefore valid at high temperatures.
    Keywords nanoscale thermal transport ; anharmonicity ; phonons ; heat current ; transmission ; thermal conductance ; Science ; Q ; Astrophysics ; QB460-466 ; Physics ; QC1-999
    Language English
    Publishing date 2022-11-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    More links

    Kategorien

  6. Article ; Online: Design and stability analysis of the gear-type mobile mechanism with a single actuator.

    Shi, Kan / Tang, Jianglong / Liu, Jiachao / Yuan, Liang

    Scientific reports

    2024  Volume 14, Issue 1, Page(s) 1922

    Abstract: Gear mechanism transmits the motion and power of parallel axes, intersecting axes and staggered axes, which has been widely employed in production and life. Gear-type mobile mechanism is a type of robot that can achieve motion through gear transmission. ... ...

    Abstract Gear mechanism transmits the motion and power of parallel axes, intersecting axes and staggered axes, which has been widely employed in production and life. Gear-type mobile mechanism is a type of robot that can achieve motion through gear transmission. Due to its unique motion mode, it can handle various tasks in certain unconventional environments, such as particularly steep surfaces. Cylindrical gear, bevel gear and non-cylindrical gear are taken as the main parts of the mechanism to form a novel research series, respectively. The models of gear-type mobile mechanism are established in this paper, and the degrees of freedom of the mechanism are briefly calculated based on the screw theory. Simultaneously, the influence of centroid trajectory on motion stability is discussed to solve the possible problem that opposite rotation occur during the movement. Furthermore, the trajectory model of zero moment point is calculated considering the motion of the gear-type mobile mechanism. After that, the simulation and experimental analysis of its motion capability show that the gear-type mobile mechanism has excellent characteristics in stability, flexibility and continuity.
    Language English
    Publishing date 2024-01-22
    Publishing country England
    Document type Journal Article
    ZDB-ID 2615211-3
    ISSN 2045-2322 ; 2045-2322
    ISSN (online) 2045-2322
    ISSN 2045-2322
    DOI 10.1038/s41598-024-51248-8
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  7. Article: Evolution of water-use efficiency in the Yangtze River Economic Belt based on national strategies and water environment treatment

    Liu, Yiwen / Yuan, Liang

    Ecological informatics. 2022 Apr. 06,

    2022  

    Abstract: Over the past two decades, strategies for sustainable development and water environment governance have become the main ways to improve regional water-use efficiency. However, the evolutionary characteristics and drivers of the regional water-use ... ...

    Abstract Over the past two decades, strategies for sustainable development and water environment governance have become the main ways to improve regional water-use efficiency. However, the evolutionary characteristics and drivers of the regional water-use efficiency remain unclear, and the effectiveness of national strategic instruments must still be evaluated. The study uses the minimum distance to the strong efficient frontier model (MinDS) to measure water-use efficiency in the Yangtze River Economic Belt, examines the evolutionary characteristics of water-use efficiency from spatial and temporal perspectives, and further investigates drivers of the evolution of the water-use efficiency. The results indicate that the water-use efficiency in the Yangtze River Economic Belt has greatly improved and been maintained at a high level, especially after the national strategy for this economic belt was established. Water-use efficiency improvement is closely related to water environment treatment. There exists a significant spillover effect on the water-use efficiency in the provinces of the Yangtze River Economic Belt. High-level provinces are helpful in driving neighboring provinces to improve their water-use efficiency, while low-level provinces play a negative role. This study confirms the effectiveness of the national strategy and provides a useful perspective for interprovincial water-use efficiency improvement.
    Keywords evolution ; governance ; models ; sustainable development ; water use efficiency ; Yangtze River
    Language English
    Dates of publication 2022-0406
    Publishing place Elsevier B.V.
    Document type Article
    Note Pre-press version
    ZDB-ID 2212016-6
    ISSN 1878-0512 ; 1574-9541
    ISSN (online) 1878-0512
    ISSN 1574-9541
    DOI 10.1016/j.ecoinf.2022.101642
    Database NAL-Catalogue (AGRICOLA)

    More links

    Kategorien

  8. Article: In vitro electrochemical detection of the degradation of amyloid-β oligomers

    Zhang, Baole / Zhu, Taofeng / Liu, Lei / Yuan, Liang

    Journal of colloid and interface science. 2023 Jan., v. 629

    2023  

    Abstract: The clearance of overloaded amyloid β (Aβ) oligomers is thought to be an attractive and potential strategy for the therapy of Alzheimer’s disease (AD). A variety of strategies have already been utilized to study Aβ degradation in vitro. Here, the ... ...

    Abstract The clearance of overloaded amyloid β (Aβ) oligomers is thought to be an attractive and potential strategy for the therapy of Alzheimer’s disease (AD). A variety of strategies have already been utilized to study Aβ degradation in vitro. Here, the electrochemical detection based on direct electrooxidation of specific Tyr residues within Aβ peptide has been developed as a simple and robust approach for monitoring the oligomers’ degradation. C₆₀ was employed for photodegrading Aβ oligomers due to the generated ROS under light irradiation. The oxidation current of Tyr residues by square wave voltammetry (SWV) increased upon the Aβ degradation, confirming that the structure variation of Aβ peptide indeed influenced the exposure of those redox species to the electrode surface and final signal output. Chronoamperometric assay also found the electrooxidation of Tyr undergone an irreversible process. Additionally, the direct electrochemistry was capable of detecting the aggregation with rapid test and better sensitivity in compared with dynamic light scattering (DLS), atomic force microscopy (AFM) and thioflavin T (ThT) based fluorescence assay. Thus, this work indicated the potential application of direct electrochemistry in the in vitro measurement of Aβ degradation and clearance, providing new insights and a complementary means into the AD theranostics.
    Keywords amyloid ; atomic force microscopy ; electrochemistry ; electrodes ; fluorescence ; irradiation ; oxidation ; peptides ; precision medicine ; rapid methods ; voltammetry
    Language English
    Dates of publication 2023-01
    Size p. 156-165.
    Publishing place Elsevier Inc.
    Document type Article
    ZDB-ID 241597-5
    ISSN 1095-7103 ; 0021-9797
    ISSN (online) 1095-7103
    ISSN 0021-9797
    DOI 10.1016/j.jcis.2022.09.009
    Database NAL-Catalogue (AGRICOLA)

    More links

    Kategorien

  9. Article ; Online: What alleviates depression among medical workers in emergency risk events? The function of subjective social status

    Xuyun Tan / Miao Lv / Lingxia Fan / Yuan Liang / Jiayin Liu

    Heliyon, Vol 9, Iss 3, Pp e13762- (2023)

    2023  

    Abstract: Medical workers often face serious family-work conflicts and are prone to depressive symptoms. The present study aimed at investigating associations between family-work conflict and depression in emergencies, and at exploring psychological processes ... ...

    Abstract Medical workers often face serious family-work conflicts and are prone to depressive symptoms. The present study aimed at investigating associations between family-work conflict and depression in emergencies, and at exploring psychological processes involved in this association. A total of 1347 participants were recruited to complete questionnaires. Results showed that the positive effect of family-work conflict on depression was mediated by the basic psychological needs satisfaction, and subjective social status moderated this relationship as a buffer. For individuals with high levels of subjective social status, the direct and indirect effects of family-work conflict on depression were weaker. This study identified the mediating and moderating mechanisms of family-work conflict and depression. The implications of these findings in both theoretical and practical terms will be discussed.
    Keywords Family-work conflict ; Depression ; Basic psychological needs satisfaction ; Subjective social status ; Moderated mediation effect ; Science (General) ; Q1-390 ; Social sciences (General) ; H1-99
    Subject code 300
    Language English
    Publishing date 2023-03-01T00:00:00Z
    Publisher Elsevier
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    More links

    Kategorien

  10. Article ; Online: Identification of preoperative risk factors associated with prolonged length of stay after lobectomy

    Yuan-Liang Zheng / Ri-Sheng Huang / Xiao-Yong Liang

    Heliyon, Vol 9, Iss 5, Pp e16061- (2023)

    2023  

    Abstract: Objective: To examine the association between length of stay (LOS) after lobectomy and operative adverse events and define the best predictors and risk factors associated with prolonged LOS after lobectomy. Methods: Data from patients undergoing ... ...

    Abstract Objective: To examine the association between length of stay (LOS) after lobectomy and operative adverse events and define the best predictors and risk factors associated with prolonged LOS after lobectomy. Methods: Data from patients undergoing thoracoscopic lobectomy in the Thoracic Surgery Department of our center between January 2015 and December 2021 were retrospectively analyzed. The association between operative adverse events and LOS after lobectomy was explored using receiver operating characteristic (ROC) curves, and multivariate logistic regression analyses were used to identify preoperative risk factors associated with prolonged LOS after lobectomy. Results: Prolonged LOS after lobectomy was defined as a LOS after lobectomy that is > 3.5 days based on an optimal diagnostic value for operative adverse events (AUC = 0.882). Of the included patients, 20.9% (91/435) exceeded this threshold, of whom 52.7% (48/91) exhibited operative adverse events. The preoperative risk factors associated with prolonged LOS after lobectomy were age≥60 years old (OR = 9.632, 95%CI 1.126–75.66, p = 0.03), being a current smoker (OR = 2.702, 95%CI 1.547–4.72, P < 0.001), an American Society of Anesthesiology (ASA) classification of 2 or higher (OR = 1.845, 95%CI 1.06–3.211, P = 0.03), ASA = 3 (OR = 9.133, 95%CI 3.281–25.425, P < 0.001), and Stage IIIA disease (OR = 6.565, 95%CI 2.823–15.271, P < 0.001). Prolonged LOS after lobectomy was significantly associated with the incidence of different operative adverse events, including conversion to thoracotomy, an operative duration of ≥300 min, blood transfusion events, chest tube drainage time, postoperative complications, and postoperative interventions (P < 0.001). Conclusion: The risk of prolonged LOS after lobectomy is higher in patients that are ≥60 years old, current smokers, exhibit an ASA classification of 2 or higher, and have a stage IIIA disease. Early identification of these risk factors can enhance the treatment offered to high-risk patients, thereby ...
    Keywords Lobectomy ; Length of stay ; Risk factors ; Science (General) ; Q1-390 ; Social sciences (General) ; H1-99
    Subject code 610
    Language English
    Publishing date 2023-05-01T00:00:00Z
    Publisher Elsevier
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    More links

    Kategorien

To top