LIVIVO - The Search Portal for Life Sciences

zur deutschen Oberfläche wechseln
Advanced search

Search results

Result 1 - 10 of total 2966

Search options

  1. Article: [Neuromonitoring in critically ill children].

    Wang, Q / Qian, S Y

    Zhonghua er ke za zhi = Chinese journal of pediatrics

    2024  Volume 62, Issue 3, Page(s) 286–288

    MeSH term(s) Child ; Humans ; Critical Illness ; Intensive Care Units, Pediatric
    Language Chinese
    Publishing date 2024-02-20
    Publishing country China
    Document type Journal Article
    ZDB-ID 784523-6
    ISSN 0578-1310
    ISSN 0578-1310
    DOI 10.3760/cma.j.cn112140-20231221-00448
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  2. Article ; Online: Letter to the Editor-The association between weight-adjusted-waist index and depression: Results from NHANES 2005-2018.

    Qian, Sifan / Huang, Tiansheng

    Journal of affective disorders

    2024  Volume 353, Page(s) 99–100

    MeSH term(s) Humans ; Nutrition Surveys ; Depression/epidemiology ; Body Mass Index ; Waist Circumference
    Language English
    Publishing date 2024-03-05
    Publishing country Netherlands
    Document type Letter
    ZDB-ID 135449-8
    ISSN 1573-2517 ; 0165-0327
    ISSN (online) 1573-2517
    ISSN 0165-0327
    DOI 10.1016/j.jad.2024.03.007
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  3. Article ; Online: Current situation and prospect for the diagnosis and treatment of pediatric critical rare diseases in China.

    Liu, Yingchao / Qian, Suyun

    Pediatric investigation

    2024  Volume 8, Issue 1, Page(s) 66–71

    Abstract: The onset of critical rare diseases (RDs) in children is rapid and dangerous, accompanied by a high mortality rate, which brings a heavy burden to both families and society. Multiple malformations, neuromuscular diseases, metabolic diseases, and heart ... ...

    Abstract The onset of critical rare diseases (RDs) in children is rapid and dangerous, accompanied by a high mortality rate, which brings a heavy burden to both families and society. Multiple malformations, neuromuscular diseases, metabolic diseases, and heart diseases are the most common types of RDs in children of China, often manifesting with multiple organ dysfunction. At present, the diagnosis and treatment of critical RDs in children face challenges such as prolonged diagnosis time, a high misdiagnosis rate, limited treatment modalities, and a significant disease burden. However, with the progress in genetic testing technology, the establishment of multidisciplinary diagnosis and treatment platforms, and the implementation of relevant RD policies in China, children with critical RDs will received enhanced medical services, experience improved prognoses, and reintegrate into social life.
    Language English
    Publishing date 2024-02-21
    Publishing country United States
    Document type Journal Article ; Review
    ISSN 2574-2272
    ISSN (online) 2574-2272
    DOI 10.1002/ped4.12419
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  4. Article ; Online: Geographic patterns of taxonomic and phylogenetic β-diversity of angiosperm genera in regional floras across the world.

    Qian, Hong / Qian, Shenhua

    Plant diversity

    2023  Volume 45, Issue 5, Page(s) 491–500

    Abstract: Beta diversity (β-diversity) is the scalar between local (α) and regional (γ) diversity. Understanding geographic patterns of β-diversity is central to ecology, biogeography, and conservation biology. A full understanding of the origin and maintenance of ...

    Abstract Beta diversity (β-diversity) is the scalar between local (α) and regional (γ) diversity. Understanding geographic patterns of β-diversity is central to ecology, biogeography, and conservation biology. A full understanding of the origin and maintenance of geographic patterns of β-diversity requires exploring both taxonomic and phylogenetic β-diversity, as well as their respective turnover and nestedness components, and exploring phylogenetic β-diversity at different evolutionary depths. In this study, we explore and map geographic patterns of β-diversity for angiosperm genera in regional floras across the world. We examine both taxonomic and phylogenetic β-diversity and their constituent components, and both tip-weighted and basal-weighted phylogenetic β-diversity, and relate them to latitude. On the one hand, our study found that the global distribution of β-diversity is highly heterogeneous. This is the case for both taxonomic and phylogenetic β-diversity, and for both tip-weighted and basal-weighted phylogenetic β-diversity. On the other hand, our study found that there are highly consistent geographic patterns among different metrics of β-diversity. In most cases, metrics of β-diversity are negatively associated with latitude, particularly in the Northern Hemisphere. Different metrics of taxonomic β-diversity are strongly and positively correlated with their counterparts of phylogenetic β-diversity.
    Language English
    Publishing date 2023-07-29
    Publishing country China
    Document type Journal Article
    ZDB-ID 2873411-7
    ISSN 2468-2659 ; 2095-0845
    ISSN (online) 2468-2659
    ISSN 2095-0845
    DOI 10.1016/j.pld.2023.07.008
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  5. Article ; Online: The impact of COVID-19 on the intention of third-child in China: an empirical analysis based on survey data.

    Li, Zi / Qian, Siwen

    BMC public health

    2023  Volume 23, Issue 1, Page(s) 1195

    Abstract: Background: Against the grim background of declining intention to have children, the ravages of COVID-19 have pushed China and the world into a more complex social environment. To adapt to the new situation, the Chinese government implemented the three- ... ...

    Abstract Background: Against the grim background of declining intention to have children, the ravages of COVID-19 have pushed China and the world into a more complex social environment. To adapt to the new situation, the Chinese government implemented the three-child policy in 2021.
    Objective: COVID-19 pandemic indirectly affects the country's internal economic development, employment, fertility plans or intention, and other major issues related to the people's livelihood, while undermining the stable operation of society. This paper explores the question that will COVID-19 pandemic affect Chinese people's intention to have a third child. And What are the relevant factors inside?
    Method: The data in this paper are from the Survey released by the Population Policy and Development Research Center of Chongqing Technology and Business University (PDPR-CTBU), including 10,323 samples from mainland China. This paper uses the logit regression model and KHB mediated effect model (a binary response model given by Karlson, Holm, and Breen) to investigate the impact of the COVID-19 pandemic and other factors on Chinese residents' intention to have a third child.
    Results: The results suggest that the COVID-19 pandemic has a negative effect on Chinese residents' intention to have a third child. In-depth research on the mediating effect of KHB shows that COVID-19 pandemic will further inhibit residents' intention to have a third child by affecting their childcare arrangements, increasing their childcare costs, and increasing their exposure to occupational hazards.
    Contribution: This paper is more pioneering in focusing on the impact of the COVID-19 epidemic on the intention to have three children in China. The study provides empirical evidence for understanding the impact of COVID-19 epidemic on fertility intentions, albeit in the context of policy support.
    MeSH term(s) Humans ; COVID-19/epidemiology ; Intention ; Pandemics/prevention & control ; China/epidemiology ; Fertility
    Language English
    Publishing date 2023-06-21
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2041338-5
    ISSN 1471-2458 ; 1471-2458
    ISSN (online) 1471-2458
    ISSN 1471-2458
    DOI 10.1186/s12889-023-15944-w
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  6. Article: [Paying attention to the identification and prevention of severe respiratory syncytial virus infections in children].

    Qian, S Y / Hon, K L

    Zhonghua er ke za zhi = Chinese journal of pediatrics

    2023  Volume 61, Issue 3, Page(s) 193–195

    MeSH term(s) Humans ; Child ; Respiratory Syncytial Virus Infections/diagnosis ; Respiratory Syncytial Virus Infections/prevention & control
    Language Chinese
    Publishing date 2023-02-26
    Publishing country China
    Document type Journal Article
    ZDB-ID 784523-6
    ISSN 0578-1310
    ISSN 0578-1310
    DOI 10.3760/cma.j.cn112140-20221103-00931
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  7. Article: Behavioral inference from non-stationary policies: Theory and application to ridehailing drivers during COVID-19 lockdowns.

    Battifarano, Matthew / Qian, Sean

    Transportation research. Part C, Emerging technologies

    2023  Volume 151, Page(s) 104118

    Abstract: In the aftermath of a disruptive event like the onset of the COVID-19 pandemic, it is important for policymakers to quickly understand how people are changing their behavior and their goals in response to the event. Choice modeling is often applied to ... ...

    Abstract In the aftermath of a disruptive event like the onset of the COVID-19 pandemic, it is important for policymakers to quickly understand how people are changing their behavior and their goals in response to the event. Choice modeling is often applied to infer the relationship between preference and behavior, but it assumes that the underlying relationship is stationary: that decisions are drawn from the same model over time. However, when observed decisions outcomes are non-stationary in time because, for example, the agent is changing their behavioral policy over time, existing methods fail to recognize the intent behind these changes. To this end, we introduce a non-parametric sequentially-valid online statistical hypothesis test to identify entities in the urban environment that ride-sourcing drivers increasingly sought out or avoided over the initial months of the COVID-19 pandemic. We recover concrete and intuitive behavioral patterns across drivers to demonstrate that this procedure can be used to detect behavioral trends as they are emerging.
    Language English
    Publishing date 2023-04-12
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 2015891-9
    ISSN 1879-2359 ; 0968-090X
    ISSN (online) 1879-2359
    ISSN 0968-090X
    DOI 10.1016/j.trc.2023.104118
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  8. Article ; Online: COM: Contrastive Masked-attention model for incomplete multimodal learning.

    Qian, Shuwei / Wang, Chongjun

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

    2023  Volume 162, Page(s) 443–455

    Abstract: Most multimodal learning methods assume that all modalities are always available in data. However, in real-world applications, the assumption is often violated due to privacy protection, sensor failure etc. Previous works for incomplete multimodal ... ...

    Abstract Most multimodal learning methods assume that all modalities are always available in data. However, in real-world applications, the assumption is often violated due to privacy protection, sensor failure etc. Previous works for incomplete multimodal learning often suffer from one of the following drawbacks: introducing noise, lacking flexibility to missing patterns and failing to capture interactions between modalities. To overcome these challenges, we propose a COntrastive Masked-attention model (COM). The framework performs cross-modal contrastive learning with GAN-based augmentation to reduce modality gap, and employs a masked-attention model to capture interactions between modalities. The augmentation adapts cross-modal contrastive learning to suit incomplete case by a two-player game, improving the effectiveness of multimodal representations. Interactions between modalities are modeled by stacking self-attention blocks, and attention masks limit them on the observed modalities to avoid extra noise. All kinds of modality combinations share a unified architecture, so the model is flexible to different missing patterns. Extensive experiments on six datasets demonstrate the effectiveness and robustness of the proposed method for incomplete multimodal learning.
    MeSH term(s) Learning ; Privacy
    Language English
    Publishing date 2023-03-05
    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.2023.03.003
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  9. Article ; Online: Effects of climate and environmental heterogeneity on the phylogenetic structure of regional angiosperm floras worldwide.

    Qian, Hong / Qian, Shenhua / Zhang, Jian / Kessler, Michael

    Nature communications

    2024  Volume 15, Issue 1, Page(s) 1079

    Abstract: The tendency of species to retain ancestral ecological distributions (phylogenetic niche conservatism) is thought to influence which species from a species pool can persist in a particular environment. Thus, investigating the relationships between ... ...

    Abstract The tendency of species to retain ancestral ecological distributions (phylogenetic niche conservatism) is thought to influence which species from a species pool can persist in a particular environment. Thus, investigating the relationships between measures of phylogenetic structure and environmental variables at a global scale can help understand the variation in species richness and phylogenetic structure in biological assemblages across the world. Here, we analyze a comprehensive data set including 341,846 species in 391 angiosperm floras worldwide to explore the relationships between measures of phylogenetic structure and environmental variables for angiosperms in regional floras across the world and for each of individual continental (biogeographic) regions. We find that the global phylogenetic structure of angiosperms shows clear and meaningful relationships with environmental factors. Current climatic variables have the highest predictive power, especially on phylogenetic metrics reflecting recent evolutionary relationships that are also related to current environmental heterogeneity, presumably because this favors plant speciation in various ways. We also find evidence that past climatic conditions, and particularly refugial conditions, play an important role in determining the phylogenetic structure of regional floras. The relationships between environmental conditions and phylogenetic metrics differ between continents, reflecting the different evolutionary histories of their floras.
    MeSH term(s) Phylogeny ; Magnoliopsida/genetics ; Biological Evolution ; Plants ; Ecosystem
    Language English
    Publishing date 2024-02-05
    Publishing country England
    Document type Journal Article
    ZDB-ID 2553671-0
    ISSN 2041-1723 ; 2041-1723
    ISSN (online) 2041-1723
    ISSN 2041-1723
    DOI 10.1038/s41467-024-45155-9
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  10. Article: Daylength predominates the bud growth initiation of winter deciduous forest trees in the monsoon region of China.

    Lang, Weiguang / Qian, Siwei / Chen, Xiaoqiu

    Frontiers in plant science

    2024  Volume 14, Page(s) 1327509

    Abstract: Climate warming has induced significant shifts in spring phenology over both temperate and boreal forests. The timing of bud growth resuming from dormancy is crucial for predicting spring phenology. However, the mechanisms by which environmental cues, ... ...

    Abstract Climate warming has induced significant shifts in spring phenology over both temperate and boreal forests. The timing of bud growth resuming from dormancy is crucial for predicting spring phenology. However, the mechanisms by which environmental cues, other than chilling accumulation, initiate bud growth remains unclear. By constructing a revised process-based spring phenology model incorporating photoperiod and temperature triggers of bud growth, we simulated the first leaf unfolding and first flowering dates of four deciduous forest trees during 1981-2014 at 102 stations across China's monsoon regions. Then, we revealed spatial patterns of the two triggers. Moreover, we compared fitting precision and robustness of the revised model with three mainstream models. Results show that the revised models can effectively simulate all spring phenology time series. Growth initiation of foliar and floral buds was induced by photoperiod lengthening in 80.8% and 77.7% of time series, and by temperature increasing in remaining 19.2% and 22.3% of time series, respectively. The proportions of time series with photoperiod- and temperature-initiated bud growth significantly increase and decrease from northern to southern climatic zones, respectively. Chilling exposure controls the predominant bud growth triggers in different climate zones. Specifically, in regions with long and severe winters where chilling requirement is easily fulfilled, rising temperature in spring alleviates the cold constraint and initiate bud growth. Conversely, in regions with short and mild winters, prolonged daylength in spring compensates the lack of chilling exposure to initiate bud growth. These findings suggest that photoperiod may limit spring phenology response to temperature in low-latitudes. Overall, our model slightly outperforms other models in terms of efficiency, accuracy, and robustness in modeling leaf unfolding and flowering dates. Therefore, this study deepens our understanding of the mechanisms of spring phenology, and improves the predicting capability of spring phenology models in the face of ongoing global warming.
    Language English
    Publishing date 2024-01-11
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2613694-6
    ISSN 1664-462X
    ISSN 1664-462X
    DOI 10.3389/fpls.2023.1327509
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

To top