LIVIVO - The Search Portal for Life Sciences

zur deutschen Oberfläche wechseln
Advanced search

Search results

Result 1 - 10 of total 13

Search options

  1. Article: Multi-Scale Object Detection with the Pixel Attention Mechanism in a Complex Background

    Xiao, Jinsheng / Guo, Haowen / Yao, Yuntao / Zhang, Shuhao / Zhou, Jian / Jiang, Zhijun

    Remote Sensing. 2022 Aug. 16, v. 14, no. 16

    2022  

    Abstract: The object detection task is usually affected by complex backgrounds. In this paper, a new image object detection method is proposed, which can perform multi-feature selection on multi-scale feature maps. By this method, a bidirectional multi-scale ... ...

    Abstract The object detection task is usually affected by complex backgrounds. In this paper, a new image object detection method is proposed, which can perform multi-feature selection on multi-scale feature maps. By this method, a bidirectional multi-scale feature fusion network was designed to fuse semantic features and shallow features to improve the detection effects of small objects in complex backgrounds. When the shallow features are transferred to the top layer, a bottom-up path is added to reduce the number of network layers experienced by the feature fusion network, reducing the loss of shallow features. In addition, a multi-feature selection module based on the attention mechanism is used to minimize the interference of useless information in subsequent classification and regression, allowing the network to adaptively focus on appropriate information for classification or regression to improve detection accuracy. Because the traditional five-parameter regression method has severe boundary problems when predicting objects with large aspect ratios, the proposed network treats angle prediction as a classification task. The experimental results on the DOTA dataset, the self-made DOTA-GF dataset and the HRSC 2016 dataset show that, compared with several popular object detection algorithms, the proposed method has certain advantages in detection accuracy.
    Keywords data collection ; prediction ; regression analysis
    Language English
    Dates of publication 2022-0816
    Publishing place Multidisciplinary Digital Publishing Institute
    Document type Article
    ZDB-ID 2513863-7
    ISSN 2072-4292
    ISSN 2072-4292
    DOI 10.3390/rs14163969
    Database NAL-Catalogue (AGRICOLA)

    More links

    Kategorien

  2. Article: Incubating green turtle (Chelonia mydas) eggs at constant temperatures: Hatching success, hatchling morphology and post-hatch growth.

    Yao, Yun-Tao / Du, Yu / Pan, Jia-Xin / Lin, Chi-Xian / Ji, Xiang / You, Wen-Hui

    Journal of thermal biology

    2022  Volume 104, Page(s) 103182

    Abstract: Past studies applying constant-temperature incubation of eggs have involved all species of sea turtles, but rarely can we find a single one incubating eggs at three or more temperatures. Here, we incubated green turtle (Chelonia mydas) eggs from Ganquan ... ...

    Abstract Past studies applying constant-temperature incubation of eggs have involved all species of sea turtles, but rarely can we find a single one incubating eggs at three or more temperatures. Here, we incubated green turtle (Chelonia mydas) eggs from Ganquan Island, South China Sea, at five constant temperatures (26, 28, 30, 32 and 34 °C) to determine hatching success, incubation length and hatchling phenotype at each test temperature and temperatures optimal for embryonic development. Temperature affected hatching success, incubation length and all seven examined hatchlings traits, and clutch origin affected three (head length, fore-flipper length and hind-flipper length) of the seven. Hatching success was lowest at 34 °C and none of hatchlings hatched at this temperature was normal and survived over one week. The rate of embryonic development and the rate of post-hatch growth both were lowest at 26 °C. Given that low survival and growth rates can translate into reduced individual fitness, we conclude that both 26 °C and 34 °C are unsuitable for incubation of C. mydas eggs. Post-hatch growth was fastest in hatchlings incubated at 30 °C, and eggs of C. mydas incubated at temperatures around 30 °C are more likely to produce mixed sexes. Accordingly, we conclude that temperatures within the range from 28 °C to 32 °C are generally optimal for embryonic development of C. mydas.
    MeSH term(s) Animals ; China ; Eggs ; Embryonic Development ; Female ; Temperature ; Turtles/embryology
    Language English
    Publishing date 2022-01-05
    Publishing country England
    Document type Journal Article
    ZDB-ID 1498364-3
    ISSN 1879-0992 ; 0306-4565
    ISSN (online) 1879-0992
    ISSN 0306-4565
    DOI 10.1016/j.jtherbio.2021.103182
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  3. Article ; Online: Incubating green turtle (Chelonia mydas) eggs at constant temperatures: Hatching success, hatchling morphology and post-hatch growth

    Yao, Yun-Tao / Du, Yu / Pan, Jia-Xin / Lin, Chi-Xian / Ji, Xiang / You, Wen-Hui

    Journal of Thermal Biology. 2022 Feb., v. 104 p.103182-

    2022  

    Abstract: Past studies applying constant-temperature incubation of eggs have involved all species of sea turtles, but rarely can we find a single one incubating eggs at three or more temperatures. Here, we incubated green turtle (Chelonia mydas) eggs from Ganquan ... ...

    Abstract Past studies applying constant-temperature incubation of eggs have involved all species of sea turtles, but rarely can we find a single one incubating eggs at three or more temperatures. Here, we incubated green turtle (Chelonia mydas) eggs from Ganquan Island, South China Sea, at five constant temperatures (26, 28, 30, 32 and 34 °C) to determine hatching success, incubation length and hatchling phenotype at each test temperature and temperatures optimal for embryonic development. Temperature affected hatching success, incubation length and all seven examined hatchlings traits, and clutch origin affected three (head length, fore-flipper length and hind-flipper length) of the seven. Hatching success was lowest at 34 °C and none of hatchlings hatched at this temperature was normal and survived over one week. The rate of embryonic development and the rate of post-hatch growth both were lowest at 26 °C. Given that low survival and growth rates can translate into reduced individual fitness, we conclude that both 26 °C and 34 °C are unsuitable for incubation of C. mydas eggs. Post-hatch growth was fastest in hatchlings incubated at 30 °C, and eggs of C. mydas incubated at temperatures around 30 °C are more likely to produce mixed sexes. Accordingly, we conclude that temperatures within the range from 28 °C to 32 °C are generally optimal for embryonic development of C. mydas.
    Keywords Chelonia mydas ; embryogenesis ; head ; phenotype ; temperature ; South China Sea ; Embryonic thermosensitivity ; Ganquan island ; Hatching ; Hatchling phenotype ; Incubation ; Sea turtle
    Language English
    Dates of publication 2022-02
    Publishing place Elsevier Ltd
    Document type Article ; Online
    ZDB-ID 1498364-3
    ISSN 1879-0992 ; 0306-4565
    ISSN (online) 1879-0992
    ISSN 0306-4565
    DOI 10.1016/j.jtherbio.2021.103182
    Database NAL-Catalogue (AGRICOLA)

    More links

    Kategorien

  4. Article ; Online: Identification of prognostic stemness-related genes in kidney renal papillary cell carcinoma.

    Liu, Yifan / Yao, Yuntao / Zhang, Yu / Xu, Chengdang / Yang, Tianyue / Qu, Mingyu / Lu, Bingnan / Song, Xu / Pan, Xiuwu / Zhou, Wang / Cui, Xingang

    BMC medical genomics

    2024  Volume 17, Issue 1, Page(s) 121

    Abstract: Background: Kidney renal papillary cell carcinoma (KIRP) is the second most prevalent malignant cancer originating from the renal epithelium. Nowadays, cancer stem cells and stemness-related genes (SRGs) are revealed to play important roles in the ... ...

    Abstract Background: Kidney renal papillary cell carcinoma (KIRP) is the second most prevalent malignant cancer originating from the renal epithelium. Nowadays, cancer stem cells and stemness-related genes (SRGs) are revealed to play important roles in the carcinogenesis and metastasis of various tumors. Consequently, we aim to investigate the underlying mechanisms of SRGs in KIRP.
    Methods: RNA-seq profiles of 141 KIRP samples were downloaded from the TCGA database, based on which we calculated the mRNA expression-based stemness index (mRNAsi). Next, we selected the differentially expressed genes (DEGs) between low- and high-mRNAsi groups. Then, we utilized weighted gene correlation network analysis (WGCNA) and univariate Cox analysis to identify prognostic SRGs. Afterwards, SRGs were included in the multivariate Cox regression analysis to establish a prognostic model. In addition, a regulatory network was constructed by Pearson correlation analysis, incorporating key genes, upstream transcription factors (TFs), and downstream signaling pathways. Finally, we used Connectivity map analysis to identify the potential inhibitors.
    Results: In total, 1124 genes were characterized as DEGs between low- and high-RNAsi groups. Based on six prognostic SRGs (CCKBR, GPR50, GDNF, SPOCK3, KC877982.1, and MYO15A), a prediction model was established with an area under curve of 0.861. Furthermore, among the TFs, genes, and signaling pathways that had significant correlations, the CBX2-ASPH-Notch signaling pathway was the most significantly correlated. Finally, resveratrol might be a potential inhibitor for KIRP.
    Conclusions: We suggested that CBX2 could regulate ASPH through activation of the Notch signaling pathway, which might be correlated with the carcinogenesis, development, and unfavorable prognosis of KIRP.
    MeSH term(s) Humans ; Prognosis ; Kidney Neoplasms/genetics ; Kidney Neoplasms/pathology ; Carcinoma, Renal Cell/genetics ; Carcinoma, Renal Cell/pathology ; Neoplastic Stem Cells/metabolism ; Neoplastic Stem Cells/pathology ; Gene Expression Regulation, Neoplastic ; Gene Regulatory Networks ; Male ; Biomarkers, Tumor/genetics ; Female ; Gene Expression Profiling ; Middle Aged ; Signal Transduction/genetics
    Chemical Substances Biomarkers, Tumor
    Language English
    Publishing date 2024-05-03
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2411865-5
    ISSN 1755-8794 ; 1755-8794
    ISSN (online) 1755-8794
    ISSN 1755-8794
    DOI 10.1186/s12920-024-01870-2
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  5. Article: Pan-cancer analysis reveals signal transducer and activator of transcription (STAT) gene family as biomarkers for prognostic prediction and therapeutic guidance.

    Cheng, Mei / Liu, Yifan / Guo, Yangkun / Li, Man / Xian, Shuyuan / Qin, Hengwei / Yang, Yiting / Qian, Weijin / Tang, Jieling / Lu, Yuwei / Yao, Yuntao / Zhang, Mengyi / Jin, Minghao / Xu, Long / Huang, Runzhi / Xu, Dayuan

    Frontiers in genetics

    2023  Volume 14, Page(s) 1120500

    Abstract: Background: ...

    Abstract Background:
    Language English
    Publishing date 2023-03-09
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2606823-0
    ISSN 1664-8021
    ISSN 1664-8021
    DOI 10.3389/fgene.2023.1120500
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  6. Article ; Online: The complete mitochondrial genome of Eremias multiocellata (Squamata: Lacertidae).

    Tong, Qing-Lin / Yao, Yun-Tao / Lin, Long-Hui / Ji, Xiang

    Mitochondrial DNA. Part A, DNA mapping, sequencing, and analysis

    2016  Volume 27, Issue 3, Page(s) 1654–1655

    Abstract: In this paper, the complete mitochondrial genome of Eremias multiocellata (Squamata: Lacertidae) is reported, which is a circular molecule of 19,385 bp in size. The nucleotides composition are 31.2% A, 28.9% T, 27.1% C and 13.4% G. The genome consists of ...

    Abstract In this paper, the complete mitochondrial genome of Eremias multiocellata (Squamata: Lacertidae) is reported, which is a circular molecule of 19,385 bp in size. The nucleotides composition are 31.2% A, 28.9% T, 27.1% C and 13.4% G. The genome consists of 13 protein-coding genes, 22 transfer RNAs, 2 ribosomal RNA genes and 1 putative control region.
    Language English
    Publishing date 2016-05
    Publishing country England
    Document type Journal Article
    ISSN 2470-1408
    ISSN (online) 2470-1408
    DOI 10.3109/19401736.2014.958714
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  7. Article ; Online: The complete mitochondrial genome of Eremias vermiculata (Squamata: Lacertidae).

    Tong, Qing-Lin / Yao, Yun-Tao / Lin, Long-Hui / Ji, Xiang

    Mitochondrial DNA. Part A, DNA mapping, sequencing, and analysis

    2016  Volume 27, Issue 2, Page(s) 1447–1448

    Abstract: In this paper, we report the complete mitochondrial genome of Eremias vermiculata (Squamata: Lacertidae), which is a circular molecule of 19,914 bp in size and consists of 13 protein-coding genes, 2 ribosomal RNAs, 22 transfer RNAs, and 1 putative ... ...

    Abstract In this paper, we report the complete mitochondrial genome of Eremias vermiculata (Squamata: Lacertidae), which is a circular molecule of 19,914 bp in size and consists of 13 protein-coding genes, 2 ribosomal RNAs, 22 transfer RNAs, and 1 putative control region. The A + T content of overall base of the composition of H-strand is 59.8% (T: 28.9%, C: 27.2%, A: 30.9%, G: 13.0%). All of the results provide powerful data to further study of the molecular systematics, species identification and conservation genetics.
    MeSH term(s) Animals ; Base Composition ; Genome Size ; Genome, Mitochondrial ; Lizards/genetics ; Mitochondria/genetics ; Sequence Analysis, DNA/methods
    Language English
    Publishing date 2016
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ISSN 2470-1408
    ISSN (online) 2470-1408
    DOI 10.3109/19401736.2014.953086
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  8. Article ; Online: Sequencing technology as a major impetus in the advancement of studies into rheumatism: A bibliometric study.

    Huang, Runzhi / Tang, Jieling / Wang, Siqiao / Liu, Yifan / Zhang, Mengyi / Jin, Minghao / Qin, Hengwei / Qian, Weijin / Lu, Yuwei / Yang, Yiting / Lu, Bingnan / Yao, Yuntao / Yan, Penghui / Huang, Jie / Zhang, Wei / Lu, Jianyu / Gu, Minyi / Zhu, Yushu / Guo, Xinya /
    Xian, Shuyuan / Liu, Xin / Huang, Zongqiang

    Frontiers in immunology

    2023  Volume 14, Page(s) 1067830

    Abstract: Background: Rheumatism covers a wide range of diseases with complex clinical manifestations and places a tremendous burden on humans. For many years, our understanding of rheumatism was seriously hindered by technology constraints. However, the ... ...

    Abstract Background: Rheumatism covers a wide range of diseases with complex clinical manifestations and places a tremendous burden on humans. For many years, our understanding of rheumatism was seriously hindered by technology constraints. However, the increasing application and rapid advancement of sequencing technology in the past decades have enabled us to study rheumatism with greater accuracy and in more depth. Sequencing technology has made huge contributions to the field and is now an indispensable component and powerful tool in the study of rheumatism.
    Methods: Articles on sequencing and rheumatism, published from 1 January 2000 to 25 April 2022, were retrieved from the Web of Science™ (Clarivate™, Philadelphia, PA, USA) database. Bibliometrix, the open-source tool, was used for the analysis of publication years, countries, authors, sources, citations, keywords, and co-words.
    Results: The 1,374 articles retrieved came from 62 countries and 350 institutions, with a general increase in article numbers during the last 22 years. The leading countries in terms of publication numbers and active cooperation with other countries were the USA and China. The most prolific authors and most popular documents were identified to establish the historiography of the field. Popular and emerging research topics were assessed by keywords and co-occurrence analysis. Immunological and pathological process in rheumatism, classification, risks and susceptibility, and biomarkers for diagnosis were among the hottest themes for research.
    Conclusions: Sequencing technology has been widely applied in the study of rheumatism and propells research in the area of discovering novel biomarkers, related gene patterns and physiopathology. We suggest that further efforts be made to advance the study of genetic patterns related to rheumatic susceptibility, pathogenesis, classification and disease activity, and novel biomarkers.
    MeSH term(s) Humans ; Rheumatic Diseases ; Bibliometrics ; China ; Databases, Factual ; Technology
    Language English
    Publishing date 2023-02-17
    Publishing country Switzerland
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2606827-8
    ISSN 1664-3224 ; 1664-3224
    ISSN (online) 1664-3224
    ISSN 1664-3224
    DOI 10.3389/fimmu.2023.1067830
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  9. Article ; Online: Tracing the evolving dynamics and research hotspots of microbiota and immune microenvironment from the past to the new era.

    Huang, Runzhi / Yao, Yuntao / Tong, Xirui / Wang, Lei / Qian, Weijin / Lu, Jianyu / Zhang, Wei / Liu, Yifan / Wang, Siqiao / Xian, Shuyuan / Zhu, Yushu / Huang, Jie / Guo, Xinya / Gu, Minyi / Lv, Hanlin / Bi, Wenshuai / Meng, Chenwei / Chang, Zhengyan / Zhang, Jie /
    Xu, Dayuan / Ji, Shizhao

    Microbiology spectrum

    2023  , Page(s) e0013523

    Abstract: Gut microbiota can regulate many physiological processes within gastrointestinal tract and other distal sites. Dysbiosis may not only influence chronic diseases like the inflammatory bowel disease (IBD), metabolic disease, tumor and its therapeutic ... ...

    Abstract Gut microbiota can regulate many physiological processes within gastrointestinal tract and other distal sites. Dysbiosis may not only influence chronic diseases like the inflammatory bowel disease (IBD), metabolic disease, tumor and its therapeutic efficacy, but also deteriorate acute injuries. This article aims to review the documents in this field and summarize the research hotspots as well as developing processes. Gut microbiota and immune microenvironment-related documents from 1976 to 2022 were obtained from the Web of Science Core Collection database. Bibliometrics was used to assess the core authors and journals, most contributive countries and affiliations together with hotspots in this field and keyword co-occurrence analysis. Data were visualized to help comprehension. Nine hundred and twelve documents about gut microbiota and immune microenvironment were retrieved, and the annual publications increased gradually. The most productive author, country, and affiliation were "Zitvogel L," USA and "UNIV TEXAS MD ANDERSON CANC CTR," respectively. FRONTIERS IN IMMUNOLOGY, CANCERS, and INTERNATIONAL JOURNAL OF MOLECULAR SCIENCE were the periodicals with most publications. Keyword co-occurrence analysis identified three clusters, including gut microbiota, inflammation, and IBD. Combined with the visualized analysis of documents and keyword co-occurrence as well as literature reading, we recognized three key topics of gut microbiota: cancer and therapy; immunity, inflammation and IBD; acute injuries and metabolic diseases. This article revealed researches on gut microbiota and immune microenvironment were growing. More attention should be given to the latest hotspots like gut microbiota, inflammation, IBD, cancer and immunotherapy, acute traumas, and metabolic diseases.IMPORTANCEGut microbiota can regulate many physiological processes within gastrointestinal tract and other distal sites. Dysbiosis may not only influence chronic diseases like inflammatory bowel disease (IBD), metabolic disease, tumor and its therapeutic efficacy, but also deteriorate acute injuries. While the application of bibliometrics in the field of gut microbiota and immune microenvironment still remains blank, which focused more on the regulation of the gut microbiota on the immune microenvironment of different kinds of diseases. Here, we intended to review and summarize the presented documents in gut microbiota and immune microenvironment field by bibliometrics. And we revealed researches on gut microbiota and immune microenvironment were growing. More attention should be given to the latest hotspots like gut microbiota, inflammation, IBD, cancer and immunotherapy, acute traumas, and metabolic diseases.
    Language English
    Publishing date 2023-09-28
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2807133-5
    ISSN 2165-0497 ; 2165-0497
    ISSN (online) 2165-0497
    ISSN 2165-0497
    DOI 10.1128/spectrum.00135-23
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  10. Article ; Online: The complete mitochondrial genome of Acanthosaura lepidogaster (Squamata: Agamidae).

    Yu, Xiu-Li / Du, Yu / Yao, Yun-Tao / Lin, Chi-Xian / Lin, Long-Hui

    Mitochondrial DNA. Part A, DNA mapping, sequencing, and analysis

    2017  Volume 28, Issue 2, Page(s) 182–184

    Abstract: In this paper, we report the complete mitochondrial genome of Acanthosaura lepidogaster (Squamata, Agamidae), which is a circular molecule of 16 899 bp in size and consists of 13 protein-coding genes, 2 ribosomal RNAs, 22 transfer RNAs, and a control ... ...

    Abstract In this paper, we report the complete mitochondrial genome of Acanthosaura lepidogaster (Squamata, Agamidae), which is a circular molecule of 16 899 bp in size and consists of 13 protein-coding genes, 2 ribosomal RNAs, 22 transfer RNAs, and a control region. The overall base composition is as follows: T (22.8%), C (30.5%), A (32.3%), and G (14.4%). We constructed a phylogeny that included for 10 species of Leiolepidinae lizards and one outgroup Leiocephalus personatus constructed in BEAST, based on 15 mitochondrial genes (12S, 16S, ND1, ND2, COI, COII, ATP8, ATP6, COIII, ND3, ND4L, ND4, ND5, ND6, and cytochrome b). The topology of the phylogenetic tree is broadly similar to that mentioned by Pyron et al.
    Language English
    Publishing date 2017-03
    Publishing country England
    Document type Journal Article
    ISSN 2470-1408
    ISSN (online) 2470-1408
    DOI 10.3109/19401736.2015.1115500
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

To top