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Determination of Pyrethroids in Paris polyphylla Sample by High-Performance Liquid Chromatography Using Ultrasound-Assisted Magnetic Solid-Phase Extraction

A novel ultrasound-assisted magnetic solid-phase extraction (UA-MSPE) was developed for the separation/preconcentration of trace amounts of pyrethroids (fenpropathrin, fenvalerate, deltamethrin, and bifenthrin) in Paris polyphylla sample using carbon nanotubes based on Fe3O4 magnetic nanoparticles (Fe3O4@CNT MNPs), and high-performance liquid chromatography-UV is described. High...

Fabrication of PTFE/Nomex fabric/phenolic composites using a layer-by-layer self-assembly method for tribology field application

Fabric composites are widely applied as self-lubricating liner for radial spherical plain bearings owing to their excellent mechanical and tribological properties. Nevertheless, the poor interfacial strength between fibers and the resin matrix limits the performance of composites utilized as tribo-materials. To overcome this drawback, a mild layer-by-layer (LbL) self-assembly...

Acetabular reinforcement ring with additional hook improves stability in three-dimensional finite element analyses of dysplastic hip arthroplasty

The stability of acetabulum reconstructions using reinforcement rings and hooks is important for successful replacement surgery. The objective of this study was to biomechanically determine the effects of the hook on stress and the related micromotions of the acetabular reinforcement ring during the immediate postoperative period. Acetabular reinforcement ring models were...

Materials genomics methods for high-throughput construction of COFs and targeted synthesis

Materials genomics represents a research mode for materials development, for which reliable methods for efficient materials construction are essential. Here we present a methodology for high-throughput construction of covalent organic frameworks (COFs) based on materials genomics strategy, in which a gene partition method of genetic structural units (GSUs) with reactive sites and...

Chromosome screening using culture medium of embryos fertilised in vitro: a pilot clinical study

Previous studies from this as well as other research groups suggested that non-invasive chromosome screening (NICS) with embryo culture medium can be used to identify chromosomal ploidy and chromosomal abnormalities. We here report a series of clinical cases utilizing the technology. A total of 45 couples underwent in vitro fertilisation during a period between February 2016 and...

Training and transfer effects of extensive task-switching training in students

The capacity to switch between tasks is a central component of executive functioning. Previous studies assessing effects of task-switch training have revealed mixed results, both in terms of processes that may be improved and the extent of beneficial effects on non-trained tasks. These studies primarily used few training sessions, which may have limited training and transfer...

Risk factors, microbiology and management of infected lymphocyst after lymphadenectomy for gynecologic malignancies

ObjectiveTo evaluate risk factors, microbiology and management of infected lymphocysts in patients undergoing systemic lymphadenectomy for gynecological cancer.MethodsPatients with gynecological cancer who developed postoperative lymphocysts after lymphadenectomy were enrolled between January 2009 and June 2017. The clinical data of infected lymphocysts were analyzed and compared...

Neoadjuvant chemotherapy versus neoadjuvant chemoradiotherapy for cancer of the esophagus or the gastroesophageal junction: A meta-analysis based on clinical trials

should be further determined in future studies. Supporting information S1 File. PRISMA checklist. (DOC) (DOC) S2 File. Excluded full-text articles. Author Contributions Conceptualization: Xin Zhao ... . Data curation: Xin Zhao, Naiqiang Cui, Ximo Wang. Formal analysis: Xin Zhao, Yong Hu, Ximo Wang. Methodology: Xin Zhao, Yiming Ren, Yong Hu. Project administration: Yunfeng Cui. Software: Xin Zhao

Protective Effects of Yinchenhao Decoction on Cholesterol Gallstone in Mice Fed a Lithogenic Diet by Regulating LXR, CYP7A1, CYP7B1, and HMGCR Pathways

The study attempted to elucidate whether lipid genes are closely associated with lipid metabolic abnormalities during the lithogenic time and how Yinchenhao Decoction (YCHD) works on the transcriptions of lipid genes against cholesterol gallstone model. C57BL/6J mice fed on lithogenic diet (LD) were used for model establishment and randomized into 5 groups. All groups received LD...

Injectable antibacterial conductive nanocomposite cryogels with rapid shape recovery for noncompressible hemorrhage and wound healing

, University of Michigan, Ann Arbor, MI48109, USAPeter X. Ma AuthorsSearch for Xin Zhao in:Nature Research journals • PubMed • Google Scholar Search for Baolin Guo in:Nature Research journals • PubMed • Google

Icaritin Provokes Serum Thrombopoietin and Downregulates Thrombopoietin/MPL of the Bone Marrow in a Mouse Model of Immune Thrombocytopenia

Xi Liu,1,2 Yi Sun,1,2 Xin Zhao,1,2 and Xiaoping Pu1,2 1National Key Research Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing 100191, China 2Department of Molecular and Cellular

Icaritin Provokes Serum Thrombopoietin and Downregulates Thrombopoietin/MPL of the Bone Marrow in a Mouse Model of Immune Thrombocytopenia

Xi Liu,1,2 Yi Sun,1,2 Xin Zhao,1,2 and Xiaoping Pu1,2 1National Key Research Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing 100191, China 2Department of Molecular and Cellular

Structures and Properties of Self - crosslinking Silicone Resin

Highly transparent silicone resin with self-crosslinking structure was prepared using phenyltrimethoxysilane, diphenyldimethoxysilane, 1,3,5,7-cyclotetra(methyl siloxane) and bisvinyltetramethyldisiloxane as main raw materials. The structure of silicone resin was determined by Fourier Transform Infrared Spectroscopy (FT-IR). The light transmittance was measured by UV-Vis...

Global genomic diversity and conservation priorities for domestic animals are associated with the economies of their regions of origin

Laboratory of Animal Ecology and Conservation Biology, Institute of Zoology, Chinese Academy of Sciences (CAS), Beijing, 100101, ChinaMin Zhang, Wei-Feng Peng, Xiao-Ju Hu, Yong-Xin Zhao, Feng-Hua Lv & Ji ... YangUniversity of Chinese Academy of Sciences (UCAS), Beijing, 100049, ChinaWei-Feng Peng, Xiao-Ju Hu & Yong-Xin Zhao AuthorsSearch for Min Zhang in:Nature Research journals • PubMed • Google Scholar Search for

Study on healing technique for weak interlayer and related mechanical properties based on microbially-induced calcium carbonate precipitation

. Methodology: Dong Liu. Validation: Jingzhu Huang, Chenggong Ding. Writing ? original draft: Changyu Jin. Writing ? review & editing: Dong Liu, Xin Zhao. 20 / 21 1. Xu Y.N. , He F. , Zhang J. H. , Chen H. Q

Dual terahertz comb spectroscopy with a single free-running fibre laser

Dual terahertz (THz) comb spectroscopy enables high spectral resolution, high spectral accuracy, and broad spectral coverage; however, the requirement for dual stabilized femtosecond lasers hampers its versatility. We here report the first demonstration of dual THz comb spectroscopy using a single free-running fibre laser. By tuning the cavity-loss-dependent gain profile with an...

Downregulation of DJ-1 Fails to Protect Mitochondrial Complex I Subunit NDUFS3 in the Testes and Contributes to the Asthenozoospermia

Asthenozoospermia (AS), an important cause of male infertility, is characterized by reduced sperm motility. Among the aetiologies of AS, inflammation seems to be the main cause. DJ-1, a conserved protein product of the PARK7 gene, is associated with male infertility and plays a role in oxidative stress and inflammation. Although our previous studies showed that a reduction in DJ...

Downregulation of DJ-1 Fails to Protect Mitochondrial Complex I Subunit NDUFS3 in the Testes and Contributes to the Asthenozoospermia

Asthenozoospermia (AS), an important cause of male infertility, is characterized by reduced sperm motility. Among the aetiologies of AS, inflammation seems to be the main cause. DJ-1, a conserved protein product of the PARK7 gene, is associated with male infertility and plays a role in oxidative stress and inflammation. Although our previous studies showed that a reduction in DJ...