LIVIVO - The Search Portal for Life Sciences

zur deutschen Oberfläche wechseln
Advanced search

Search results

Result 1 - 10 of total 4761

Search options

  1. Article ; Online: Comment Regarding "Antireflux Surgery Versus Antireflux Medication and Risk of Esophageal Adenocarcinoma in Patients With Barrett's Esophagus".

    Zhang, Han

    Gastroenterology

    2023  Volume 166, Issue 5, Page(s) 943

    MeSH term(s) Humans ; Barrett Esophagus/surgery ; Barrett Esophagus/drug therapy ; Esophageal Neoplasms/surgery ; Gastroesophageal Reflux/diagnosis ; Gastroesophageal Reflux/drug therapy ; Gastroesophageal Reflux/complications ; Adenocarcinoma/surgery ; Proton Pump Inhibitors/adverse effects ; Proton Pump Inhibitors/therapeutic use ; Risk Factors ; Fundoplication/adverse effects ; Risk Assessment ; Treatment Outcome
    Chemical Substances Proton Pump Inhibitors
    Language English
    Publishing date 2023-09-22
    Publishing country United States
    Document type Comment ; Letter
    ZDB-ID 80112-4
    ISSN 1528-0012 ; 0016-5085
    ISSN (online) 1528-0012
    ISSN 0016-5085
    DOI 10.1053/j.gastro.2023.09.025
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

    In stock of ZB MED Cologne/Königswinter

    Ui V Zs.44: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 2021: Bestellungen von Artikeln über das Online-Bestellformular
    ab Jg. 2022: Lesesaal (EG)
    Zs.MO 572: Show issues

    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.

  2. Article: A small-molecule organic ferroelectric with piezoelectric voltage coefficient larger than that of lead zirconate titanate and polyvinylidene difluoride.

    Zhang, Han-Yue

    Chemical science

    2022  Volume 13, Issue 17, Page(s) 5006–5013

    Abstract: Piezoelectric materials that generate electricity when deforming are ideal for many implantable medical sensing devices. In modern piezoelectric materials, inorganic ceramics and polymers are two important branches, represented by lead zirconate titanate ...

    Abstract Piezoelectric materials that generate electricity when deforming are ideal for many implantable medical sensing devices. In modern piezoelectric materials, inorganic ceramics and polymers are two important branches, represented by lead zirconate titanate (PZT) and polyvinylidene difluoride (PVDF). However, PVDF is a nondegradable plastic with poor crystallinity and a large coercive field, and PZT suffers from high sintering temperature and toxic heavy element. Here, we successfully design a metal-free small-molecule ferroelectric, 3,3-difluorocyclobutanammonium hydrochloride ((3,3-DFCBA)Cl), which has high piezoelectric voltage coefficients
    Language English
    Publishing date 2022-04-07
    Publishing country England
    Document type Journal Article
    ZDB-ID 2559110-1
    ISSN 2041-6539 ; 2041-6520
    ISSN (online) 2041-6539
    ISSN 2041-6520
    DOI 10.1039/d1sc06909h
    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: A Dual Coordinate System Vertebra Landmark Detection Network with Sparse-to-Dense Vertebral Line Interpolation.

    Zhang, Han / Chung, Albert C S

    Bioengineering (Basel, Switzerland)

    2024  Volume 11, Issue 1

    Abstract: Precise surveillance and assessment of spinal disorders are important for improving health care and patient survival rates. The assessment of spinal disorders, such as scoliosis assessment, depends heavily on precise vertebra landmark localization. ... ...

    Abstract Precise surveillance and assessment of spinal disorders are important for improving health care and patient survival rates. The assessment of spinal disorders, such as scoliosis assessment, depends heavily on precise vertebra landmark localization. However, existing methods usually search for only a handful of keypoints in a high-resolution image. In this paper, we propose the S2D-VLI VLDet network, a unified end-to-end vertebra landmark detection network for the assessment of scoliosis. The proposed network considers the spatially relevant information both from inside and between vertebrae. The new vertebral line interpolation method converts the training labels from sparse to dense, which can improve the network learning process and method performance. In addition, through the combined use of the Cartesian and polar coordinate systems in our method, the symmetric mean absolute percentage error (SMAPE) in scoliosis assessment can be reduced substantially. Specifically, as shown in the experiments, the SMAPE value decreases from 9.82 to 8.28. The experimental results indicate that our proposed approach is beneficial for estimating the Cobb angle and identifying landmarks in X-ray scans with low contrast.
    Language English
    Publishing date 2024-01-22
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2746191-9
    ISSN 2306-5354
    ISSN 2306-5354
    DOI 10.3390/bioengineering11010101
    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.

  4. Article ; Online: Zinc Finger and BTB Domain-Containing 20: A Newly Emerging Player in Pathogenesis and Development of Human Cancers.

    Liu, Jiangyuan / Zhang, Han

    Biomolecules

    2024  Volume 14, Issue 2

    Abstract: Zinc finger and BTB domain-containing 20 (ZBTB20), which was initially identified in human dendritic cells, belongs to a family of transcription factors (TFs) with an N-terminal BTB domain and one or more C-terminal DNA-binding zinc finger domains. Under ...

    Abstract Zinc finger and BTB domain-containing 20 (ZBTB20), which was initially identified in human dendritic cells, belongs to a family of transcription factors (TFs) with an N-terminal BTB domain and one or more C-terminal DNA-binding zinc finger domains. Under physiological conditions, ZBTB20 acts as a transcriptional repressor in cellular development and differentiation, metabolism, and innate immunity. Interestingly, multiple lines of evidence from mice and human systems have revealed the importance of ZBTB20 in the pathogenesis and development of cancers. ZBTB20 is not only a hotspot of genetic variation or fusion in many types of human cancers, but also a key TF or intermediator involving in the dysregulation of cancer cells. Given the diverse functions of ZBTB20 in both health and disease, we herein summarize the structure and physiological roles of ZBTB20, with an emphasis on the latest findings on tumorigenesis and cancer progression.
    MeSH term(s) Animals ; Humans ; BTB-POZ Domain ; Cell Differentiation ; Neoplasms/genetics ; Zinc Fingers
    Chemical Substances ZBTB20 protein, human
    Language English
    Publishing date 2024-02-04
    Publishing country Switzerland
    Document type Journal Article ; Review
    ZDB-ID 2701262-1
    ISSN 2218-273X ; 2218-273X
    ISSN (online) 2218-273X
    ISSN 2218-273X
    DOI 10.3390/biom14020192
    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.

  5. Article ; Online: Numerical study of forces acting on the drum cutting coal with gangue.

    Liu, Hongmei / Zhang, Han

    PloS one

    2024  Volume 19, Issue 2, Page(s) e0296624

    Abstract: A coal model containing gangue was established by discrete elements to study the forces occurring when a shearer cuts coal, and a rigid-flexible coupled shearer section model was established in RecurDyn; the drum cutting process was simulated through ... ...

    Abstract A coal model containing gangue was established by discrete elements to study the forces occurring when a shearer cuts coal, and a rigid-flexible coupled shearer section model was established in RecurDyn; the drum cutting process was simulated through bidirectional coupling. The dynamic distribution of the force chain was obtained when cutter teeth cut the coal rock. During the cutting process, the coal rock failure is caused by normal and tangential forces, with the latter having a major role. The ratio of the average tangential force to normal force was 1.34~1.79. When the rock is in the middle of the coal seam, the force (including normal and tangential forces) on the rock is the highest. Moreover, the force on the rock-coal interface is greater than that on the coal-rock interface. The results show that the force on the coal decreases with the increases in rotation speed. In contrast, the number of broken bonds increases. Further, the number of broken bonds and the force of coal increased nonlinearly with traction speed. Finally, the increase of tooth mounting angle decreased the force on the coal rock and the number of broken bonds, followed by an increase. As such, this study provides a reference for further theoretical research on forces in coal cutting.
    MeSH term(s) Coal ; Rotation ; Traction
    Chemical Substances Coal
    Language English
    Publishing date 2024-02-09
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2267670-3
    ISSN 1932-6203 ; 1932-6203
    ISSN (online) 1932-6203
    ISSN 1932-6203
    DOI 10.1371/journal.pone.0296624
    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: Research Progress on Amide Proton Transfer Imaging in Preoperative and Postoperative Glioma Assessment.

    Zhang, Han-Wen / Lin, Fan

    Current medical imaging

    2023  Volume 19, Issue 9, Page(s) 971–976

    Abstract: Amide proton transfer (APT) imaging is a technique that reflects the level of amide proton transport of hydrogen ions in water to peptides and proteins within the tumour by using magnetic resonance imaging without contrast administration. This technique ... ...

    Abstract Amide proton transfer (APT) imaging is a technique that reflects the level of amide proton transport of hydrogen ions in water to peptides and proteins within the tumour by using magnetic resonance imaging without contrast administration. This technique can more accurately reflect the protein level, pH value, and other relevant information within the tumour. Currently, APT is widely used in glioma research. In this paper, we briefly describe the research progress on this technique.
    MeSH term(s) Humans ; Protons ; Brain Neoplasms/diagnostic imaging ; Brain Neoplasms/surgery ; Brain Neoplasms/metabolism ; Amides ; Glioma/diagnostic imaging ; Glioma/surgery ; Magnetic Resonance Imaging/methods
    Chemical Substances Protons ; Amides
    Language English
    Publishing date 2023-02-08
    Publishing country United Arab Emirates
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ISSN 1573-4056
    ISSN (online) 1573-4056
    DOI 10.2174/1573405619666230126124039
    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.

  7. Article ; Online: Assembly and Function of Seed Endophytes in Response to Environmental Stress.

    Wang, Yong-Lan / Zhang, Han-Bo

    Journal of microbiology and biotechnology

    2023  Volume 33, Issue 9, Page(s) 1119–1129

    Abstract: Seeds are colonized by diverse microorganisms that can improve the growth and stress resistance of host plants. Although understanding the mechanisms of plant endophyte-host plant interactions is increasing, much of this knowledge does not come from seed ...

    Abstract Seeds are colonized by diverse microorganisms that can improve the growth and stress resistance of host plants. Although understanding the mechanisms of plant endophyte-host plant interactions is increasing, much of this knowledge does not come from seed endophytes, particularly under environmental stress that the plant host grows to face, including biotic (
    MeSH term(s) Endophytes/physiology ; Seeds ; Plants ; Metals, Heavy/toxicity ; Stress, Physiological
    Chemical Substances Metals, Heavy
    Language English
    Publishing date 2023-05-30
    Publishing country Korea (South)
    Document type Journal Article ; Review
    ZDB-ID 2412195-2
    ISSN 1738-8872 ; 1738-8872
    ISSN (online) 1738-8872
    ISSN 1738-8872
    DOI 10.4014/jmb.2303.03004
    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.

  8. Article ; Online: Three-dimensional narrow-bandgap perovskite semiconductor ferroelectric methylphosphonium tin triiodide for potential photovoltaic application.

    Zhang, Han-Yue / Xiong, Ren-Gen

    Chemical communications (Cambridge, England)

    2023  Volume 59, Issue 7, Page(s) 920–923

    Abstract: A novel A-site three-dimensional organic-inorganic halide perovskites (3D OIHP) ferroelectric, methylphosphonium tin triiodide ( ... ...

    Abstract A novel A-site three-dimensional organic-inorganic halide perovskites (3D OIHP) ferroelectric, methylphosphonium tin triiodide (MPSnI
    Language English
    Publishing date 2023-01-19
    Publishing country England
    Document type Journal Article
    ZDB-ID 1472881-3
    ISSN 1364-548X ; 1359-7345 ; 0009-241X
    ISSN (online) 1364-548X
    ISSN 1359-7345 ; 0009-241X
    DOI 10.1039/d2cc06408a
    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.

  9. Article ; Online: Few-shot link prediction for temporal knowledge graphs based on time-aware translation and attention mechanism.

    Zhang, Han / Bai, Luyi

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

    2023  Volume 161, Page(s) 371–381

    Abstract: Few-shot knowledge graph completion (KGC) is an important and common task in real applications, which aims to predict unseen facts when only few samples are available for each relation in the knowledge graph (KG). Previous methods on few-shot KGC mainly ... ...

    Abstract Few-shot knowledge graph completion (KGC) is an important and common task in real applications, which aims to predict unseen facts when only few samples are available for each relation in the knowledge graph (KG). Previous methods on few-shot KGC mainly focus on static KG, however, many KG in real-world applications are dynamic and develop over time. In this work, we consider few-shot KGC in temporal knowledge graphs (TKGs), where the fact may only hold for a specific timestamp. We propose a Few-Shot Completion model in TKG (TFSC), which compare the input query to the given few-shot references to make predictions. Specifically, in order to enhance the representation of entities in the case of few samples, we use the attention mechanism to model the neighbor entities of the task entity with timestamp information, and generate expressive time-aware entity pair representations through the Transformer encoder. A comprehensive set of experiments is finally carried out to demonstrate the effectiveness a of our proposed model TFSC.
    MeSH term(s) Pattern Recognition, Automated ; Knowledge
    Language English
    Publishing date 2023-02-01
    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.2023.01.043
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

    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.

  10. Article ; Online: Ferroelectric polymers take a step toward bioelectronics.

    Zhang, Han-Yue / Xiong, Ren-Gen

    Science (New York, N.Y.)

    2023  Volume 381, Issue 6657, Page(s) 484–485

    Abstract: Chemical modification opens new applications for polymers in wearables. ...

    Abstract Chemical modification opens new applications for polymers in wearables.
    Language English
    Publishing date 2023-08-03
    Publishing country United States
    Document type Journal Article
    ZDB-ID 128410-1
    ISSN 1095-9203 ; 0036-8075
    ISSN (online) 1095-9203
    ISSN 0036-8075
    DOI 10.1126/science.adj2420
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

    In stock of ZB MED Cologne/Königswinter

    Zs.A 27: 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)
    Zs.MG 77: Show issues

    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.

To top