Global climate change is known to affect the assembly of ecological communities by altering species’ spatial distribution patterns, but little is known about how climate change may affect community assembly by changing species’ temporal co-occurrence patterns, which is highly likely given the widely observed phenological shifts associated with climate change. Here we analyzed a 29-year phenological data set comprising community-level information on the timing and span of temporal occurrence in 11 seasonally occurring animal taxon...

Critically ill patients with coronavirus diseases 2019 (COVID-19) are of grave concern. Those patients usually underwent a stage of excessive inflammation before developing acute respiratory distress syndrome. In this study, we test the hypothesis that short-term, low-to-moderate-dose corticosteroids would benefit patients when used in the early phase of excessive inflammation, namely, the therapeutic window. Among a Shanghai cohort and a validation cohort, we enrolled COVID-19 patients showing marked radiographic progression. Short-term, low-to-moderate-dose corticosteroids were considered...

Background: Critically ill patients with COVID-19 are of grave concern. Those patients usually underwent a stage of excessive inflammation before developing acute respiratory distress syndrome. In this study, we test the hypothesis that short-term, low-to-moderate-dose corticosteroids would benefit patients when used in the early phase of excessive inflammation namely, the therapeutic window. Methods: Among a Shanghai cohort and a validation cohort, we enrolled COVID-19 patients showing marked radiographic progression. Short-term, low-to-moderate-dose corticosteroids were considered for...

1. Fine-root traits show remarkable variation with plant community structure and environmental shifts, but there is limited understanding of how trait covariation that exists among fine-root traits shifts among different communities, especially in forests. We explored links among the fine-root traits of forest communities to determine whether community root traits shift predictably according to an economics framework along environmental gradients. 2. Measurements of root morphology, nitrogen, phosphorus and carbon concentrations, and measures of standing root...

The three-dimensional (3D) structure of RNA usually plays an important role in the recognition with RNA-binding protein. Along with the discovering of RNAs, several RNA databases are developed to study the functions of RNA based on sequence, secondary structure, local 3D structural motif and global structure. Based on RNA function and structure, different RNAs are classified and stored in SCOR and DARTS, respectively. The classification of RNA structures is useful in RNA structure prediction and...

We, the Editors and Publisher of the journal Cell Cycle, have retracted the following article: Qicai Han, Jie Yang, Hao Yang, Chao Li, Juan Li & Yuan Cao (2020) KIAA1429 promotes osteosarcoma progression by promoting stem cell properties and is regulated by miR-143-3p, Cell Cycle, 19:10, 1172-1185, DOI: 10.1080/15384101.2020.1749465 Since publication, concerns have been raised about similarity of the data in another published article: Yang J, Han Q, Li C, Yang H, Chen X, Wang...

Callose plays an important role in plant development and response to multiple biotic and abiotic stresses. Callose synthase (CalS; EC 2.4.1.34), the main enzyme in callose synthesis, has been studied in a number of crops but not in cucumber (Cucumis sativus L.). In this study, 10 genes encoding putative callose synthase were identified and classified into four clades. Expression levels of the 10 CsCalS genes, which varied considerably, were detected in most analyzed organs. Transcription...

Macroautophagy/autophagy is a conserved cellular mechanism to degrade unneeded cytoplasmic proteins and organelles to recycle their components, and it is critical for embryonic stem cell (ESC) self-renewal and somatic cell reprogramming. Whereas autophagy is essential for early development of embryos, no information exists regarding its functions during the transition from naive-to-primed pluripotency. Here, by using an in vitro transition model of ESCs to epiblast-like cells (EpiLCs), we find that dynamic changes in ATG7-dependent autophagy are...

The EIF3 gene family is essential in controlling translation initiation during the cell cycle. The significance of the EIF3 subunits as prognostic markers and therapeutic targets in breast cancer is not yet clear. We analyzed the expression of EIF3 subunits in breast cancer on the GEPIA and Oncomine databases and compared their expression in breast cancer and normal tissues using BRCA data downloaded from TCGA. Then we performed clinical survival analysis on the Kaplan–Meier Plotter...

The EIF3 gene family is essential in controlling translation initiation during the cell cycle. The significance of the EIF3 subunits as prognostic markers and therapeutic targets in breast cancer is not yet clear. We analyzed the expression of EIF3 subunits in breast cancer on the GEPIA and Oncomine databases and compared their expression in breast cancer and normal tissues using BRCA data downloaded from TCGA. Then we performed clinical survival analysis on the Kaplan–Meier Plotter...

The protection of the isolated heart is very important in heart transplantation surgery, meanwhile, the ischaemia/reperfusion (I/R) of the isolated heart is the main cause of its damage. A timely supply of oxygen can significantly improve the prevention of myocardial ischaemia, however, the cardioprotective solution does not have an oxygen supply function. Haemoglobin Based on Oxygen Carriers (HBOCs) is a kind of nano-oxygen drug, which can effectively and timely supply oxygen to hypoxic organs and...

In sharp contrast with birds and mammals, sex chromosomes have been described as homomorphic in cold-blooded vertebrates. This sex-chromosome homomorphy has been suggested to result from high turnovers when they are often observed across deeply diverged clades. However, little is known about the tempo and mode of sex chromosome evolution among most closely related species. Here, we examine patterns of sex chromosome evolution among nine species of the torrent frog genus Amolops. Through the analysis...

Snapshot compressive imaging (SCI) encodes high-speed scene video into a snapshot measurement and then computationally makes reconstructions, allowing for efficient high-dimensional data acquisition. Numerous algorithms, ranging from regularization-based optimization and deep learning, are being investigated to improve reconstruction quality, but they are still limited by the ill-posed and information-deficient nature of the standard SCI paradigm. To overcome these drawbacks, we propose a new key frames assisted hybrid encoding paradigm for compressive video sensing, termed KH-CVS,...

Organoids, the 3D culture systems derived from stem cells, are promising models for human organs. But organoid study requires large-volume imaging with single cell resolution, which is beyond the spatial bandwidth limit of conventional optical microscopy. Herein, we propose a lensless holographic microscope empowered with a time and memory-saving algorithm. It solves the tradeoff between the imaging field of view, resolution and processing speed, and provides a practical tools for organoids’ study. We first build...

Additional file 1. Table S1: Occurrence records of Latrodectus hasselti included in this study.

Abstract Background Diet is a modifiable risk factor for cardiovascular diseases (CVD), but there is still a lack of tools to assess dietary intakes of this high-risk population in Ningxia, China. Objective We aim to evaluate the validity and reliability of the semi-quantitative food frequency questionnaire (SFFQ) in the groups in Ningxia using a 24-hour dietary recall method. Method Two hundred five participants were included in the analysis. The two FFQs were 6 months apart,...

During an investigation in October 2018, two people with diarrhoea, mild abdominal pain, and mild arthralgia symptoms in Guangxi, China, were identified as infected by H9N2 avian influenza virus (AIV). Four H9N2 AIVs were isolated from one of two patients, a pet cat, and a dead chicken (two respective isolates from its lung and kidney tissues) bred by the patients at a backyard farm. Epidemiological investigation indicated that the newly bought chicken died first, and...

Photonic Floquet topological insulators provide a powerful tool to manipulate the optical fields, which have been extensively studied with only nearest-neighbor coupling. Here, we demonstrate that nontrivial Floquet topological phase and photonic π modes are brought from long-range coupling in a one-dimensional periodically driven optical lattice. Interestingly, the long-range coupling is found to give rise to new Floquet π modes that do not exist in the traditional Floquet lattices. We interpret the underlying physics by...

Mounting uncertainties regarding the coronavirus disease (COVID-19) pandemic and the popularity of social media created fertile grounds for conspiracy theories to flourish, leading to a global “infodemic.” We examine information sources used to support five popular COVID-19-related conspiracy theories on Twitter to identify (1) their primary building blocks, (2) similarities and dissimilarities across COVID-19 conspiracy theories, and (3) the relationship between type of message content and content distribution. Findings show that statements of belief and...

Mounting uncertainties regarding the coronavirus disease (COVID-19) pandemic and the popularity of social media created fertile grounds for conspiracy theories to flourish, leading to a global “infodemic.” We examine information sources used to support five popular COVID-19-related conspiracy theories on Twitter to identify (1) their primary building blocks, (2) similarities and dissimilarities across COVID-19 conspiracy theories, and (3) the relationship between type of message content and content distribution. Findings show that statements of belief and...

Additional file 1. SPIRIT 2013 Checklist: Recommended items to address in a clinical trial protocol and related documents.

Additional file 1: Figure S1. The chemical structure and corresponding mass spectrum of absorbed components in vivo.

Additional file 7: Table S4. Accession numbers of the CPGs used in the phylogenetic analysis.

Additional file 2: Figure S2. The chromatograms of mixed standards and serum sample after BHGZD gavage.

Additional file 4: Figure S4. Graphical abstract.