Understanding the volume collapse phenomena in rare-earth materials remains an important challenge due to a lack of information on 4 electronic structures at different pressures. Here, we report the first high-pressure inelastic X-ray scattering measurement on elemental cerium (Ce) metal. By overcoming the ultralow signal issue in the X-ray measurement at the Ce -edge, we observe the changes of unoccupied 4 states across the volume collapse transition around 0.
View Article and Find Full Text PDFA complementary description of Kyphopteryx yangi Du Chen, 2019 is presented based on a recently collected topotype male. Taxonomic features of this male are compared with the holotype.
View Article and Find Full Text PDFEight species of Trypetisoma Malloch, 1924 from Southwest China are described as new to science: T. (Trypaneoides) endosclerita sp. nov.
View Article and Find Full Text PDFThe status of the 20 genera comprising at least 60 species of Sciomyzidae known from China is reviewed. Ten genera are recorded for the first time from China. A diagnostic key to all genera known from China is provided along with figures of the main characters.
View Article and Find Full Text PDFA new species of Nemouridae, Indonemoura bifida sp. nov., is described from Guangdong Province of southern China.
View Article and Find Full Text PDFA new species of the Amphinemurinae genus Amphinemura, A. baisensis sp. nov.
View Article and Find Full Text PDFThe Himalayan region now includes 67 species in seven genera of Sciapodinae, including nine new species (Amblypsilopus acuminatus sp. nov., A.
View Article and Find Full Text PDFZhongguo Ying Yong Sheng Li Xue Za Zhi
July 2019
Objective: To investigate the effects of berberine on learning and memory ability in vascular cognitive impairment rats.
Methods: Sixty-eight Wistar rats were randomly divided into control group (n=10), sham operated group (n=10) and the modeling group of vascular cognitive impairment rat (n=48), then the rats in modeling group were randomly divided into four groups (n=10): vehicle group, berberine low dose group (20 mg/kg), medium dose group (40 mg/kg) and high dose group (60 mg/kg). Bilateral common carotid arteries were occluded in rats to establish vascular cognitive impairment (VCI) model.
Mitochondrial DNA B Resour
October 2019
The mitogenome of () was sequenced, the new representative of the subfamily Limnophilinae in mitogenome. The completed mitogenome is 15,985 bp totally, comprising of 13 protein-coding genes, 2 rRNAs, 22 transfer RNAs and control region. All genes have the similar locations and strands with other published species of Tipuloidea.
View Article and Find Full Text PDFConcentration cycles are important for bonding of basic molecular building components at the emergence of life. We demonstrate that oscillations occur intrinsically in precipitation reactions when coupled with fluid mechanics in self-assembled precipitate membranes, such as at submarine hydrothermal vents. We show that, moreover, the flow of ions across one pore in such a prebiotic membrane is larger than that across one ion channel in a modern biological cell membrane, suggesting that proto-biological processes could be sustained by osmotic flow in a less efficient prebiotic environment.
View Article and Find Full Text PDFBackground: To explore the role of resistin (RE) on deep vein thrombosis (DVT) and the molecular mechanism.
Methods: ELISA assay was used to determine the concentration of RE, MMP-2, MMP-9, and PAI-1 in serum of DVT patients and controls. Rats were randomly divided into 4 groups: control, DVT, DVT + RE, and DVT + RE + SB203580 group.
Rigid polyurethane foam, foam concrete, and vacuum insulation board are common roofing insulation materials. Their weathering performance under long-term multi-field coupling determines the overall service life of the roof. The weathering properties of rigid polyurethane foam, foam concrete and vacuum insulation panels were studied under freeze thaw, humid-heat, dry-wet, high-low temperature, and multi-field coupling cycles, respectively.
View Article and Find Full Text PDFMotivation: Convolutional neural networks (CNNs) have outperformed conventional methods in modeling the sequence specificity of DNA-protein binding. While previous studies have built a connection between CNNs and probabilistic models, simple models of CNNs cannot achieve sufficient accuracy on this problem. Recently, some methods of neural networks have increased performance using complex neural networks whose results cannot be directly interpreted.
View Article and Find Full Text PDFPreviously 12 species of the subgenus Epiphragma (Epiphragma) Osten Sacken, 1860 were known to occur in China. The following three species are described and illustrated as new to science: E. (E.
View Article and Find Full Text PDFObjective: To investigate the ultrasonographic characteristics in hourglasslike constriction of peripheral nerve in the upper extremity and to evaluate the value of ultrasonography in the diagnosis.
Methods: Nineteen patients with hourglasslike constriction of peripheral nerve in the upper extremity underwent ultrasonography and the results were compared with surgery. The ultrasonographic characteristics, the accurate rate, and the relation between the ultrasonography and surgery were analyzed.
Polymers (Basel)
September 2019
Chitosan (CS) and graphene (Gr) were used to modify bamboo fiber fabrics to develop new bamboo fiber fabrics (CGBFs) with antimicrobial properties. The CGBFs were prepared by chemical crosslinking with CS as binder assistant and Gr as functional finishing agent. The method of firmly attaching the CS/Gr to bamboo fiber fabrics was explored.
View Article and Find Full Text PDFThe crane fly belongs to family Tipulidae. The mitogenome of was sequenced, the new representative of the mitogenome of the family Tipulidae. The nearly complete mitogenome is 14,851 bp totally, consisting of 13 protein-coding genes, 2 rRNAs and 22 transfer RNAs.
View Article and Find Full Text PDFMangrove forests are widely located along coastlines. They have been identified to be inimitable and dynamic ecosystems. This study investigated the trace metals in mangrove water and surface sediments of Nansha, Guangzhou, China.
View Article and Find Full Text PDFSensors (Basel)
September 2019
Rice lodging severely affects harvest yield. Traditional evaluation methods and manual on-site measurement are found to be time-consuming, labor-intensive, and cost-intensive. In this study, a new method for rice lodging assessment based on a deep learning UNet (U-shaped Network) architecture was proposed.
View Article and Find Full Text PDFThe modified prolonged gonadotropin-releasing hormone agonist (GnRH-a) protocol lessens the ovarian hyperstimulation syndrome (OHSS) effect and improves the clinical pregnancy rate of women with polycystic ovary syndrome (PCOS) compared with the standard long GnRH-a protocol. However, the molecular basis of this process needs to be elucidated. Sprague Dawley (SD) female rats with letrozole-induced PCOS were divided into GnRH-a and blank groups.
View Article and Find Full Text PDFHow muscles are used is a key to understanding the internal driving of fish swimming. However, the underlying mechanisms of some features of the muscle activation patterns and their differential appearance in different species are still obscure. In this study, we explain the muscle activation patterns by using 3D computational fluid dynamics models coupled to the motion of fish with prescribed deformation and examining the torque and power required along the fish body with two primary swimming modes.
View Article and Find Full Text PDFMitochondrial DNA B Resour
September 2019
sp. belongs to family Anthomyzidae of superfamily Opomyzoidea. The mitogenome of sp.
View Article and Find Full Text PDFis a good forage plant, which has important economic and ecological value in arid and semi-arid regions of China. Drought is one of the main factors affecting its productivity. At present, there are few studies on the mechanism of drought resistance.
View Article and Find Full Text PDFNatural particles ranging from various cell membranes to nascent proteins are highly optimized for their specific functions in vivo and possess features that are desired in drug delivery carriers. However, the current endeavor in research on bioparticles is still seeking the appropriate strategy to shield multiple agents and circumvent biological hurdles. These issues have propelled the advancement of lipid-polymer hybrid nanocarriers, which could be employed as drug reservoirs and strive to meet these expectations.
View Article and Find Full Text PDFThree new species of the genus , , , and , are described from China. A revised key to the six Chinese species of is also presented.
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