LIVIVO - The Search Portal for Life Sciences

zur deutschen Oberfläche wechseln
Advanced search

Search results

Result 1 - 10 of total 854

Search options

  1. Article ; Online: Use of Ball Drop Casting and Surface Modification for the Development of Amine-Functionalized Silica Aerogel Globules for Dynamic and Efficient Direct Air Capture.

    Kong, Yong / Liu, Quan / Liu, Zhiyuan / Shen, Xiaodong

    ACS applied materials & interfaces

    2024  Volume 16, Issue 12, Page(s) 15165–15176

    Abstract: Amine-functionalized silica aerogel globules (AFSAGs) were first synthesized via a simple ball drop casting method followed by amine grafting. The effect of grafting time on the structure and ... ...

    Abstract Amine-functionalized silica aerogel globules (AFSAGs) were first synthesized via a simple ball drop casting method followed by amine grafting. The effect of grafting time on the structure and CO
    Language English
    Publishing date 2024-03-13
    Publishing country United States
    Document type Journal Article
    ISSN 1944-8252
    ISSN (online) 1944-8252
    DOI 10.1021/acsami.3c17993
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

    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.

    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.

  2. Article: Football referee gesture recognition algorithm based on YOLOv8s.

    Yang, Zhiyuan / Shen, Yuanyuan / Shen, Yanfei

    Frontiers in computational neuroscience

    2024  Volume 18, Page(s) 1341234

    Abstract: Gesture serves as a crucial means of communication between individuals and between humans and machines. In football matches, referees communicate judgment information through gestures. Due to the diversity and complexity of referees' gestures and ... ...

    Abstract Gesture serves as a crucial means of communication between individuals and between humans and machines. In football matches, referees communicate judgment information through gestures. Due to the diversity and complexity of referees' gestures and interference factors, such as the players, spectators, and camera angles, automated football referee gesture recognition (FRGR) has become a challenging task. The existing methods based on visual sensors often cannot provide a satisfactory performance. To tackle FRGR problems, we develop a deep learning model based on YOLOv8s. Three improving and optimizing strategies are integrated to solve these problems. First, a Global Attention Mechanism (GAM) is employed to direct the model's attention to the hand gestures and minimize the background interference. Second, a P2 detection head structure is integrated into the YOLOv8s model to enhance the accuracy of detecting smaller objects at a distance. Third, a new loss function based on the Minimum Point Distance Intersection over Union (MPDIoU) is used to effectively utilize anchor boxes with the same shape, but different sizes. Finally, experiments are executed on a dataset of six hand gestures among 1,200 images. The proposed method was compared with seven different existing models and 10 different optimization models. The proposed method achieves a precision rate of 89.3%, a recall rate of 88.9%, a mAP@0.5 rate of 89.9%, and a mAP@0.5:0.95 rate of 77.3%. These rates are approximately 1.4%, 2.0%, 1.1%, and 5.4% better than those of the newest YOLOv8s, respectively. The proposed method has right prospect in automated gesture recognition for football matches.
    Language English
    Publishing date 2024-02-19
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2452964-3
    ISSN 1662-5188
    ISSN 1662-5188
    DOI 10.3389/fncom.2024.1341234
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

    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.

  3. Article ; Online: Effects of Salt and Nitrogen Stress on the Growth of Winter Rye

    Shen Zhiyuan

    E3S Web of Conferences, Vol 189, p

    2020  Volume 01017

    Abstract: Winter Rye (Secale cereale L.) is an important food stock that are found on most part of the world that are coastal areas, which are now open to threats as global warming causes multiple issues that includes soil salination and high-concentration ... ...

    Abstract Winter Rye (Secale cereale L.) is an important food stock that are found on most part of the world that are coastal areas, which are now open to threats as global warming causes multiple issues that includes soil salination and high-concentration nitrogen run-off. As of right now, it’s already clear that salt will place a growth stress on most plants in high concentrations and will prohibit critical organs for nutrient intake, yet a number of researches stated that high dose of nitrogen will restore the growth of most wild and commercial plants. We are interested to find out how the interaction between salt and nitrogen can interfere with the growth of winter rye. A standard comprehensive 2-variable greenhouse assay was set up, with different levels of salt and nitrogen. After a 3-week growth period, an ANOVA test was conducted. The plants performance was inhibited when they are exposed to the lowest salt concentration and medium to high levels of nitrogen. In high saline environments, however, the performance of the plant was improved as it’s exposed to medium and particularly, high nitrogen levels. The finding of this study would be useful in ways that few previous studies had focused on the effect of salt and nitrogen stress on the grown of food species in case of global warming and population growth, and the subject should be studied on more food species in future researches.
    Keywords Environmental sciences ; GE1-350
    Subject code 580
    Language English
    Publishing date 2020-01-01T00:00:00Z
    Publisher EDP Sciences
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    Full text online

    More links

    Kategorien

    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.

  4. Article ; Online: Unmasking the mammalian SET domain-containing protein 4.

    Wang, Yuan / Shen, Zhiyuan

    NAR cancer

    2022  Volume 4, Issue 3, Page(s) zcac021

    Abstract: SET domain-containing protein 4 (SETD4) is a member of a unique class of protein lysine methyltransferases. Here, we introduce the basic features of SETD4 and summarize the key findings from recent studies with emphases on its roles in tissue development ...

    Abstract SET domain-containing protein 4 (SETD4) is a member of a unique class of protein lysine methyltransferases. Here, we introduce the basic features of SETD4 and summarize the key findings from recent studies with emphases on its roles in tissue development and tumorigenesis, and its methylation substrates. SETD4 is expressed in stem/progenitor cells. Ablation of Setd4
    Language English
    Publishing date 2022-07-13
    Publishing country England
    Document type Journal Article
    ISSN 2632-8674
    ISSN (online) 2632-8674
    DOI 10.1093/narcan/zcac021
    Database MEDical Literature Analysis and Retrieval System OnLINE

    Full text online

    More links

    Kategorien

    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.

    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.

  5. Article: Infographic: Chongqing technique.

    Shen, Jie / Wei, Zhiyuan / Sun, Dong / Wu, Hongri / Wang, Xiaohua / Wang, Shulin / Luo, Fei / Xie, Zhao

    Bone & joint research

    2024  Volume 13, Issue 3, Page(s) 124–126

    Language English
    Publishing date 2024-03-11
    Publishing country England
    Document type Journal Article
    ZDB-ID 2669244-2
    ISSN 2046-3758
    ISSN 2046-3758
    DOI 10.1302/2046-3758.133.BJR-2023-0358
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

    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.

  6. Article ; Online: Study on Crust-Shaped Dust Suppressant in Non-Disturbance Area of Open-Pit Coal Mine-A Case Study.

    Shen, Zhiyuan / Ao, Zhongchen / Wang, Zhiming / Yang, Yuqing

    International journal of environmental research and public health

    2023  Volume 20, Issue 2

    Abstract: Dust pollution in open-pit coal mines severely restricts the green development of mines. Therefore, dust control has become an important requirement for the sustainable development of the mining industry. With the goal of dust pollution prevention and ... ...

    Abstract Dust pollution in open-pit coal mines severely restricts the green development of mines. Therefore, dust control has become an important requirement for the sustainable development of the mining industry. With the goal of dust pollution prevention and control in open-pit coal mines, this paper puts forward the concept of a non-disturbance area of an open-pit coal mine. It clarifies the characteristics of dust generation, the coverage area, and the dust particle size distribution characteristics of the non-disturbance area. Taking the dust control at the dump site as an example, the study comprehensively utilizes indoor tests and field tests to develop a dust suppressant for the dump site and determine its dust suppression efficiency and effective service cycle. The results show that the D10, D50, and D90 particle sizes of dust in the non-disturbance area are smaller than those in the disturbance area, and the difference in particle size of D90 is the most obvious. Gelatinized starch and non-ionic polyacrylamide, as the main components of the dust suppressant, can effectively reduce dust pollution in the dump; the optimal concentration is 1.0%, and the dust suppression service cycle is more than one month. The developed dust suppressant does not contain corrosive, toxic, or heavy metal elements. Although the application of a dust suppressant will cause plant growth to lag, it does not affect plant health. The research findings serve as a reference for the zoning treatment of dust in open-pit mines.
    MeSH term(s) Dust/analysis ; Coal/analysis ; Mining ; Environmental Pollution ; Metals, Heavy/analysis ; Coal Mining
    Chemical Substances Dust ; Coal ; Metals, Heavy
    Language English
    Publishing date 2023-01-04
    Publishing country Switzerland
    Document type Journal Article ; 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/ijerph20020934
    Database MEDical Literature Analysis and Retrieval System OnLINE

    Full text online

    More links

    Kategorien

    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.

  7. Article ; Online: Treatment of a case of primary alveolar soft part sarcoma of the lung: Case report and literature review.

    Li, Feiyang / Lu, Haowei / Zhao, Dong / Shen, Zhiyuan

    The Journal of international medical research

    2023  Volume 51, Issue 6, Page(s) 3000605231174973

    Abstract: Alveolar soft part sarcoma (ASPS) is an extremely rare type of soft tissue sarcoma. The primary sites of ASPS are mostly located in the extremities and trunk. Primary pulmonary ASPS is extremely rare. A search of the PubMed® database identified only five ...

    Abstract Alveolar soft part sarcoma (ASPS) is an extremely rare type of soft tissue sarcoma. The primary sites of ASPS are mostly located in the extremities and trunk. Primary pulmonary ASPS is extremely rare. A search of the PubMed® database identified only five cases of primary pulmonary ASPS. This current case report describes the sixth case of ASPS in a 15-year-old male that presented with recurrent headaches. Head computed tomography showed space-occupying lesions in the left parietal lobe. Positron emission tomography-computed tomography confirmed the space-occupying lesions in the left parietal lobe and showed multiple nodules and masses in the two lungs and pleura, which were considered to be low-grade malignant mesenchymal tumours. The case report presents the clinical characteristics, diagnosis and treatment process. Programmed cell death protein 1 monoclonal antibody (sintilimab) combined with a tyrosine kinase inhibitor (anlotinib hydrochloride) achieved a good therapeutic effect, indicating that this combination therapy is worth exploring further. Large-scale prospective studies are needed to explore and develop standardized treatments for ASPS.
    MeSH term(s) Male ; Humans ; Adolescent ; Sarcoma, Alveolar Soft Part/diagnostic imaging ; Sarcoma, Alveolar Soft Part/drug therapy ; Sarcoma, Alveolar Soft Part/surgery ; Soft Tissue Neoplasms/pathology ; Positron Emission Tomography Computed Tomography ; Tomography, X-Ray Computed ; Lung/pathology
    Language English
    Publishing date 2023-06-07
    Publishing country England
    Document type Review ; Case Reports ; Journal Article
    ZDB-ID 184023-x
    ISSN 1473-2300 ; 0300-0605 ; 0142-2596
    ISSN (online) 1473-2300
    ISSN 0300-0605 ; 0142-2596
    DOI 10.1177/03000605231174973
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

    In stock of ZB MED Cologne/Königswinter

    Zs.A 925: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
    Jg. 1995 - 2021: Lesesall (1.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.

  8. Article ; Online: Treatment of a case of primary alveolar soft part sarcoma of the lung

    Feiyang Li / Haowei Lu / Dong Zhao / Zhiyuan Shen

    Journal of International Medical Research, Vol

    Case report and literature review

    2023  Volume 51

    Abstract: Alveolar soft part sarcoma (ASPS) is an extremely rare type of soft tissue sarcoma. The primary sites of ASPS are mostly located in the extremities and trunk. Primary pulmonary ASPS is extremely rare. A search of the PubMed® database identified only five ...

    Abstract Alveolar soft part sarcoma (ASPS) is an extremely rare type of soft tissue sarcoma. The primary sites of ASPS are mostly located in the extremities and trunk. Primary pulmonary ASPS is extremely rare. A search of the PubMed® database identified only five cases of primary pulmonary ASPS. This current case report describes the sixth case of ASPS in a 15-year-old male that presented with recurrent headaches. Head computed tomography showed space-occupying lesions in the left parietal lobe. Positron emission tomography–computed tomography confirmed the space-occupying lesions in the left parietal lobe and showed multiple nodules and masses in the two lungs and pleura, which were considered to be low-grade malignant mesenchymal tumours. The case report presents the clinical characteristics, diagnosis and treatment process. Programmed cell death protein 1 monoclonal antibody (sintilimab) combined with a tyrosine kinase inhibitor (anlotinib hydrochloride) achieved a good therapeutic effect, indicating that this combination therapy is worth exploring further. Large-scale prospective studies are needed to explore and develop standardized treatments for ASPS.
    Keywords Medicine (General) ; R5-920
    Subject code 610
    Language English
    Publishing date 2023-06-01T00:00:00Z
    Publisher SAGE Publishing
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    Full text online

    More links

    Kategorien

    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.

  9. Article ; Online: Effect of oxygen-containing functional groups on the wettability of coal through DFT and MD simulation

    Dan Zhao / Xiaoqing Liu / Zhiyuan Shen

    Arabian Journal of Chemistry, Vol 16, Iss 4, Pp 104606- (2023)

    2023  

    Abstract: To investigate the wettability of different oxygen-containing functional group (OFG) surfaces, graphite substrates were used as a model for coal adsorbents. The substrates were modified with COOH, OH, CO, and OCH3. The adsorption-diffusion behavior ... ...

    Abstract To investigate the wettability of different oxygen-containing functional group (OFG) surfaces, graphite substrates were used as a model for coal adsorbents. The substrates were modified with COOH, OH, CO, and OCH3. The adsorption-diffusion behavior of H2O molecules/water droplets on different OFG surfaces was investigated using molecular dynamics (MD) simulations with frontier orbital energy difference as a metric for different surface wettability degrees in quantum chemical analysis. The results indicated that the frontier orbital energy difference of the H2O molecule was 3.480, 3.491, 3.631, and 3.680 eV for PhCOOH, PhOH, PhCO, and PhOCH3, respectively. In addition, the equilibrium contact angle, interaction energy, and number of hydrogen bonds after the adsorption equilibrium of water droplets for COOH, OH, CO, and OCH3 surfaces were 22.34°, −5.03 kcal/mol, and 652; –23.72°, −4.19 kcal/mol, and 450; 68.01°, −0.79 kcal/ mol, and 61; 90.51°, −0.50 kcal/mol, and 28, respectively. The smaller the energy difference between the frontier orbitals of the H2O molecule and the OFG, the smaller the equilibrium contact angle between the water droplet and the OFG surface, the more hydrogen bonds were formed, and the larger the absolute value of the interaction energy, the better the wettability of the surface of the OFG. The order of wettability of the different OFG surfaces was COOH > OH > CO > OCH3, which is consistent with the radial distribution function and the analysis results for the extended area, etc. The results of density functional theory (DFT) calculations and MD simulations exhibited identical patterns, indicating the reasonableness of the simulations. This study may serve as a reference for the suppression of hydrophilicity in low-order coal and the enhancement of the flotation effect.
    Keywords Oxygen-containing functional groups ; Electrostatic potential ; Frontier orbital ; Equilibrium contact angle ; Number of hydrogen bonds ; Chemistry ; QD1-999
    Subject code 541
    Language English
    Publishing date 2023-04-01T00:00:00Z
    Publisher Elsevier
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    Full text online

    More links

    Kategorien

    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.

  10. Article ; Online: Study on the Solution and Variation Law of Diffusion Coefficient Based on the Numerical Simulation Optimization Method.

    Shen, Shangkun / Wang, Haifeng / Ren, Tianwei / Wang, Zhiyuan / Cao, Tengyue / Xin, Zhengyang

    ACS omega

    2024  Volume 9, Issue 3, Page(s) 3950–3961

    Abstract: Since the diffusion coefficient is a key parameter to characterize the diffusion rate of methane molecules, its measurement and solution have always been a research hotspot. The diffusion coefficient is normally solved through analytical solutions of ... ...

    Abstract Since the diffusion coefficient is a key parameter to characterize the diffusion rate of methane molecules, its measurement and solution have always been a research hotspot. The diffusion coefficient is normally solved through analytical solutions of theoretical models, which is complex and poorly applicable. In comparison, the numerical simulation optimization method can seek a solution easily and quickly, providing a clue for solving such problem. In this paper, first, gas desorption experiments were conducted on coal samples with different initial gas equilibrium pressures, coal particle sizes, and metamorphic degrees. Combined with existing theoretical models, the numerical simulation optimization method was adopted to solve the diffusion coefficient of the coal particle. Furthermore, the applicability and advantages of the numerical simulation optimization method were discussed. Finally, the variation law of the diffusion coefficients was analyzed. The results demonstrate that the numerical simulation optimization method can not only solve the diffusion coefficient easily and quickly but also reveal the law of diffusion concentration with time. The
    Language English
    Publishing date 2024-01-11
    Publishing country United States
    Document type Journal Article
    ISSN 2470-1343
    ISSN (online) 2470-1343
    DOI 10.1021/acsomega.3c08335
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

    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.

    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