Genetic Analysis of Soybean Flower Size Phenotypes Based on Computer Vision and Genome-Wide Association Studies.

The dimensions of organs such as flowers, leaves, and seeds are governed by processes of cellular proliferation and expansion. In soybeans, the dimensions of these organs exhibit a strong correlation with crop yield, quality, and other phenotypic traits. Nevertheless, there exists a scarcity of research concerning the regulatory genes influencing flower size, particularly within the soybean species.

Identifying the Soybean microRNAs Related to Based on RNA Sequencing and Bioinformatics Analysis.

Phytophthora root rot in soybeans is caused by a pathogen called (), which results in a significant decrease in soybean production within affected regions. MicroRNAs (miRNAs) are a class of small non-coding RNA molecules that play a key post-transcriptional regulatory role in eukaryotes. In this paper, the miRNAs that respond to were analyzed from the gene level to complement the study of molecular resistance mechanisms in soybean.

Exploring Soybean Flower and Pod Variation Patterns During Reproductive Period Based on Fusion Deep Learning.

The soybean flower and the pod drop are important factors in soybean yield, and the use of computer vision techniques to obtain the phenotypes of flowers and pods in bulk, as well as in a quick and accurate manner, is a key aspect of the study of the soybean flower and pod drop rate (PDR). This paper compared a variety of deep learning algorithms for identifying and counting soybean flowers and pods, and found that the Faster R-CNN model had the best performance. Furthermore, the Faster R-CNN model was further improved and optimized based on the characteristics of soybean flowers and pods.

Do job stress, health, and presenteeism differ between Chinese healthcare workers in public and private hospitals: a cross sectional study.

To determine if job stress, health, and presenteeism differ between healthcare workers at Chinese public and private hospitals. This cross-sectional study analyzed the records of 1080 healthcare workers in eastern, central, and western China for the period from January2015 through November2015. Data on challenge stress, hindrance stress, health, and presenteeism were collected.

A retrospective and prospective assessment of the zero-markup drug reform in China from the perspective of policy diffusion.

The zero-markup drug policy is an important component of the new round of Chinese health care reform that began in 2009 to promote the separation between medical and pharmaceutical services, reduce patients' medical burden, and improve the medical supply security system. Over the past 8 years, the zero-markup drug reform policy has been carried out in 4 pilot rounds (a policy diffusion model with Chinese characteristics) and has been promoted throughout the mainland China. At this critical point, it is necessary to review this policy systematically.

Job Stress and Presenteeism among Chinese Healthcare Workers: The Mediating Effects of Affective Commitment.

Background: Presenteeism affects the performance of healthcare workers. This study examined associations between job stress, affective commitment, and presenteeism among healthcare workers.

Methods: To investigate the relationship between job stress, affective commitment, and presenteeism, structural equation modeling was used to analyze a sample of 1392 healthcare workers from 11 Class A tertiary hospitals in eastern, central, and western China.

Characterization of acylated pepsin-solubilized collagen with better surface activity.

A new kind of acylated collagen with water solubility and better surface activity was prepared via reaction of pepsin-solubilized calf skin collagen with lauroyl chloride and succinic anhydride in this paper. The equilibrium surface tension and the isoelectric point were 55.92 mN/m and 4.

The influence of chondroitin 4-sulfate on the reconstitution of collagen fibrils in vitro.

Collagen fibrils were in vitro reconstituted from the aggregated collagen solution in the presence of a wide range of collagen/chondroitin 4-sulfate (Col/C4S) ratios. As revealed by turbidimetric measurement, the collagen fibril formation is significantly accelerated by C4S. The turbidity values of both the solution after 30 min preincubation at 4°C and the gels after 60 min preincubation at 37°C become larger with the increase of C4S amount.

Effect of hydroxypropyl methylcellulose on collagen fibril formation in vitro.

Collagen and hydroxypropyl methylcellulose (HPMC) were mixed to obtain blends and the effect of HPMC on collagen self-assembly was studied. As deduced from atomic force microscopy (AFM), the amount of nuclei in collagen-HPMC solutions was changed with the addition of HPMC. Under physiological conditions, the kinetics curves of fibril formation showed that the turbidity of blends at 313 nm was higher than that of native collagen.

[Study on the effect of temperature on the conformation of cross-linked collagen by two-dimensional infrared correlation spectroscopy].

The Fourier transform infrared spectroscopy and two dimensional correlation analysis method were applied to study a denaturing process of uncross-linked collagen and cross-linked collagen during varying temperature. It was found that the intensity of typically characteristic absorptions of collagen decreased and its peak shifted to low frequency, The amide II central absorbance peak moved to a lower frequency by about 10 cm(-1), which indicated that the inter-chain hydrogen bonds which stabilized the triple helix conformation of collagen were disrupted during thermal denaturation, resulting in a conformational change. The intensity of auto-peak at 1 515 cm(-1) was maximum, which suggested that the temperature had a big impact on amide II.

Interaction study in homogeneous collagen/chondroitin sulfate blends by two-dimensional infrared spectroscopy.

The neutral homogeneous collagen/chondroitin sulfate (Col/CS) blends were prepared when using 0.25 mol/L NaCl to stabilize the blends. Composition-dependent Fourier transform-infrared (FTIR) spectra were analyzed by generalized two-dimensional (2D) correlation spectroscopy to investigate the conformational changes of collagen and the specific interactions between collagen and CS.