bluuebunny/crossref_metadata_2025 huggingface dataset:
Genetic patterns in Mugil cephalus and implications for fisheries and aquaculture management
Authors: Cossu Piero , Mura Laura , Scarpa Fabio , Lai Tiziana , Sanna Daria , Azzena Ilenia , Fois Nicola , Casu Marco
Published: February 2021

Exploitation of fisheries and aquaculture practices are exposing marine fish populations to increasing genetic risks. Therefore, the integration of genetic information into fisheries and aquaculture management is becoming crucial to ensure species’ long-term persistence. The raising commercial value of grey mullet (Mugil cephalus) and its roe represents a growing challenge to the sustainable management of this economically important fishery resource. Here, microsatellites were used to investigate patterns of genetic variation in a Mediterranean area that harbor flourishing fisheries and practice semi-intensive farming of grey mullet. Genetic diversity within populations is smaller than values reported in previous studies as a result of the lower polymorphism displayed by the new microsatellite loci. Lack of genetic structuring points to the existence of a unique genetic stock, which is consistent with the species’ high dispersal capabilities. Nonetheless, differences in local population effective size as well as the excess of related individuals do not completely fit the picture of a large panmictic population. Baseline genetic information here gathered will allow to set up the genetic monitoring of regional fish stocks, which is needed to assess the impact of both harvesting and aquaculture on the genetic integrity of Mugil cephalus wild populations.
Detection of selection signatures for response to Aleutian mink disease virus infection in American mink
Authors: Karimi Karim , Farid A. Hossain , Myles Sean , Miar Younes
Published: February 2021

Aleutian disease (AD) is the most significant health issue for farmed American mink. The objective of this study was to identify the genomic regions subjected to selection for response to infection with Aleutian mink disease virus (AMDV) in American mink using genotyping by sequencing (GBS) data. A total of 225 black mink were inoculated with AMDV and genotyped using a GBS assay based on the sequencing ofApeKI-digested libraries. Five AD-characterized phenotypes were used to assign animals to pairwise groups. Signatures of selection were detected using integrated measurement of fixation index (FST) and nucleotide diversity (θπ), that were validated by haplotype-based (hap-FLK) test. The total of 99 putatively selected regions harbouring 63 genes were detected in different groups. The gene ontology revealed numerous genes related to immune response (e.g.TRAF3IP2,WDR7,SWAP70,CBFB, andGPR65), liver development (e.g.SULF2,SRSF5) and reproduction process (e.g.FBXO5,CatSperβ,CATSPER4, andIGF2R). The hapFLK test supported two strongly selected regions that contained five candidate genes related to immune response, virus–host interaction, reproduction and liver regeneration. This study provided the first map of putative selection signals of response to AMDV infection in American mink, bringing new insights into genomic regions controlling the AD phenotypes.
Macrophages enhance lipopolysaccharide induced apoptosis via Ang1 and NF-κB pathways in human umbilical vein endothelial cells
Authors: Cai Guo-Long , Yang Zhou-Xin , Guo Dong-Yang , Hu Cai-Bao , Yan Mo-Lei , Yan Jing
Published: February 2021

Lipopolysaccharide (LPS) could induce apoptosis and dysfunction of endothelial cells. We aimed to reveal the effects of macrophages on cell proliferation and apoptosis in LPS induced human umbilical vein endothelial cells (HUVECs). THP-1 derived macrophages and HUVECs were co-cultured in the presence of LPS. Cell viability was measured by Cell Counting Kit-8 and apoptosis was analyzed by flow cytometry. Expression of Ang1, the NF-κB component p65 was evaluated by western blot and quantitative PCR. Small interfering RNAs (siRNAs) were used to knockdown the expression of proinflammatory cytokines and p65 in HUVECs. Plasmid transfection-mediated overexpression of Ang1 was employed to see its effects on cell proliferation and apoptosis in HUVECs. Macrophages enhanced LPS-induced proliferation impairments and apoptosis in HUVECs, which could be attenuated by siRNA-mediated knockdown of cytokines TNF-α, IL-1β, IL-6 and IL-12p70 in macrophages. The dysfunction of HUVECs was tightly associated with reduced Ang1 expression and increased phosphorylated p65 (p-65). Overexpression of Ang1 in HUVECs significantly decreased p-p65, suggesting negatively regulation of p-p65 by Ang1. Overexpression of Ang1, adding recombinant Ang1 or silencing of p65 substantially attenuated the dysfunction of HUVECs in terms of cell proliferation and apoptosis. In conclusions, THP-1-derived macrophages enhance LPS induced dysfunction of HUVECs via Ang1 and NF-κB pathways, suggesting new therapeutic targets for sepsis.
The melibiose-derived glycation product mimics a unique epitope present in human and animal tissues
Authors: Staniszewska Magdalena , Bronowicka-Szydełko Agnieszka , Gostomska-Pampuch Kinga , Szkudlarek Jerzy , Bartyś Arkadiusz , Bieg Tadeusz , Gamian Elżbieta , Kochman Agata , Picur Bolesław , Pietkiewicz Jadwiga , Kuropka Piotr , Szeja Wiesław , Wiśniewski Jerzy , Ziółkowski Piotr , Gamian Andrzej
Published: February 2021

Non-enzymatic modification of proteins by carbohydrates, known as glycation, leads to generation of advanced glycation end-products (AGEs). In our study we used in vitro generated AGEs to model glycation in vivo. We discovered in vivo analogs of unusual melibiose-adducts designated MAGEs (mel-derived AGEs) synthesized in vitro under anhydrous conditions with bovine serum albumin and myoglobin. Using nuclear magnetic resonance spectroscopy we have identified MAGEs as a set of isomers, with open-chain and cyclic structures, of the fructosamine moiety. We generated a mouse anti-MAGE monoclonal antibody and show for the first time that the native and previously undescribed analogous glycation product exists in living organisms and is naturally present in tissues of both invertebrates and vertebrates, including humans. We also report MAGE cross-reactive auto-antibodies in patients with diabetes. We anticipate our approach for modeling glycation in vivo will be a foundational methodology in cell biology. Further studies relevant to the discovery of MAGE may contribute to clarifying disease mechanisms and to the development of novel therapeutic options for diabetic complications, neuropathology, and cancer.
Duffing-type oscillator under harmonic excitation with a variable value of excitation amplitude and time-dependent external disturbances
Authors: Wawrzynski Wojciech
Published: February 2021

For more complex nonlinear systems, where the amplitude of excitation can vary in time or where time-dependent external disturbances appear, an analysis based on the frequency response curve may be insufficient. In this paper, a new tool to analyze nonlinear dynamical systems is proposed as an extension to the frequency response curve. A new tool can be defined as the chart of bistability areas and area of unstable solutions of the analyzed system. In the paper, this tool is discussed on the basis of the classic Duffing equation. The numerical approach was used, and two systems were tested. Both systems are softening, but the values of the coefficient of nonlinearity are significantly different. Relationships between both considered systems are presented, and problems of the nonlinearity coefficient and damping influence are discussed.
Risk factors associated with failure of total ankle arthroplasty: a nationwide cohort study
Authors: Suh Dong Hun , Han Kyungdo , Lee Jin Woo , Kim Hak Jun , Kim Bongsung , Koo Bong Mo , Kim Hak Kyu , Choi Gi Won
Published: February 2021

We conducted a nationwide population-based cohort study to identify the risk factors associated with failure of total ankle arthroplasty (TAA). We included 2,914 subjects who underwent primary TAA between January 1, 2010, and December 31, 2016, utilizing the database of the Korean National Health Insurance Service. Failure of TAA was defined as revision TAA or arthrodesis procedures. An increased risk of TAA failure was observed in the < 65 age group versus the ≥ 75 age group [adjusted hazard ratios (aHR) 2.273, 95% confidence interval (CI) 1.223–4.226 in the 60–64 age group; aHR 2.697, 95% CI 1.405–5.178 in the 55–59 age group; aHR 2.281, 95% CI 1.145–4.543 in the 50–54 age group; aHR 2.851, 95% CI 1.311–6.203 in the < 50 age group]. Conversely, the ≥ 65 age group displayed no increase in the risk of TAA failure. The risk of TAA failure was increased in the severely obese group with body mass index (BMI) of ≥ 30 kg/m2 versus the normal BMI group (aHR 1.632; 95% CI 1.036–2.570). This population-based longitudinal study demonstrated that age < 65 years and BMI of ≥ 30 kg/m2 were associated with increased risk of TAA failure.
Author Correction: Bacterial communities associated with the surface of fresh sweet pepper (Capsicum annuum) and their potential as biocontrol
Authors: Mamphogoro Tshifhiwa Paris , Maboko Martin Makgose , Babalola Olubukola Oluranti , Aiyegoro Olayinka Ayobami
Published: February 2021

An amendment to this paper has been published and can be accessed via a link at the top of the paper.
A genome-wide meta-analysis yields 46 new loci associating with biomarkers of iron homeostasis
Authors: Bell Steven , Rigas Andreas S. , Magnusson Magnus K. , Ferkingstad Egil , Allara Elias , Bjornsdottir Gyda , Ramond Anna , Sørensen Erik , Halldorsson Gisli H. , Paul Dirk S. , Burgdorf Kristoffer S. , Eggertsson Hannes P. , Howson Joanna M. M. , Thørner Lise W. , Kristmundsdottir Snaedis , Astle William J. , Erikstrup Christian , Sigurdsson Jon K. , Vuckovic Dragana , Dinh Khoa M. , Tragante Vinicius , Surendran Praveen , Pedersen Ole B. , Vidarsson Brynjar , Jiang Tao , Paarup Helene M. , Onundarson Pall T. , Akbari Parsa , Nielsen Kaspar R. , Lund Sigrun H. , Juliusson Kristinn , Magnusson Magnus I. , Frigge Michael L. , Oddsson Asmundur , Olafsson Isleifur , Kaptoge Stephen , Hjalgrim Henrik , Runarsson Gudmundur , Wood Angela M. , Jonsdottir Ingileif , Hansen Thomas F. , Sigurdardottir Olof , Stefansson Hreinn , Rye David ,   DBDS Genomic Consortium,   Denmark, Andersen Steffen , Burgdorf Kristoffer , Jemec Gregor , Jennum Poul , Johansson Pär , Nielsen Kasper R. , Nyegaard Mette , Petersen Mikkel , Werge Thomas ,   Iceland, Stefánsson Hreinn , Thorsteinsdóttir Unnur , Peters James E. , Westergaard David , Holm Hilma , Soranzo Nicole , Banasik Karina , Thorleifsson Gudmar , Ouwehand Willem H. , Thorsteinsdottir Unnur , Roberts David J. , Sulem Patrick , Butterworth Adam S. , Gudbjartsson Daniel F. , Danesh John , Brunak Søren , Di Angelantonio Emanuele , Ullum Henrik , Stefansson Kari
Published: February 2021

Iron is essential for many biological functions and iron deficiency and overload have major health implications. We performed a meta-analysis of three genome-wide association studies from Iceland, the UK and Denmark of blood levels of ferritin (N = 246,139), total iron binding capacity (N = 135,430), iron (N = 163,511) and transferrin saturation (N = 131,471). We found 62 independent sequence variants associating with iron homeostasis parameters at 56 loci, including 46 novel loci. Variants at DUOX2, F5, SLC11A2 and TMPRSS6 associate with iron deficiency anemia, while variants at TF, HFE, TFR2 and TMPRSS6 associate with iron overload. A HBS1L-MYB intergenic region variant associates both with increased risk of iron overload and reduced risk of iron deficiency anemia. The DUOX2 missense variant is present in 14% of the population, associates with all iron homeostasis biomarkers, and increases the risk of iron deficiency anemia by 29%. The associations implicate proteins contributing to the main physiological processes involved in iron homeostasis: iron sensing and storage, inflammation, absorption of iron from the gut, iron recycling, erythropoiesis and bleeding/menstruation.
Carbon Nanotubes for Cardiac Applications
Authors: Peña Brisa , Alegret Nuria , Laughter Melissa , Taylor Matthew R. G. , Mestroni Luisa , Prato Maurizio
Published: February 2021

Due to the unique electrical, mechanical and thermal features of carbon nanotubes (CNTs), several authors have tested the therapeutic effect of CNTs on electroactive cells to develop novel tissue engineering approaches. In this regard, the first studies assessing the effect of CNTs on cardiac cells showed that neonatal rat ventricular myocytes (NRVMs) cultured on CNT-coated substrates have improved viability, proliferation, maturation and electrical properties when compared with NRVMs grown on gelatin coated tissue culture dishes as controls. Furthermore, NRVMs cultured on CNT-coated substrates displayed increased expression of gap junctions and, overall, a more mature phenotype, with enhanced electrophysiological behavior and more robust networking and maturation into functional syncytia. These results support the use of CNT for cardiac tissue engineering applications to develop innovative therapies for cardiac repair. In this book chapter, we discuss the use of CNTs for cardiac applications including their use in biomaterials, their biological effect on cardiac cells and their toxicity and potential alternatives to overcome this limitation.
H-Ferritin nanoparticle-mediated delivery of antibodies across a BBB in vitro model for treatment of brain malignancies
Authors: Rizzuto Maria Antonietta , Dal Magro Roberta , Barbieri Linda , Pandolfi Laura , Sguazzini-Viscontini Anna , Truffi Marta , Salvioni Lucia , Corsi Fabio , Colombo Miriam , Re Francesca , Prosperi Davide
Published: February 2021

H-ferritin nanoconjugates of CTX and TZ are developed as carriers across the BBB to allow immunotherapy of primary glioblastoma and HER2+ breast cancer brain metastases. The reliability of the strategy is demonstrated using a transwell barrier model.
Double insertion of CO2 into an Al–Te multiple bond
Authors: Evans Matthew J. , Anker Mathew D. , McMullin Claire L. , Rajabi Nasir A. , Coles Martyn P.
Published: February 2021

Two equivalents of CO2 react with a terminal Al–Te bond to form the tellurodicarbonate ligand.
Controlling hydrogen evolution reaction activity on Ni core–Pt island nanoparticles by tuning the size of the Pt islands
Authors: Alinezhad Ali , Benedetti Tania M. , Lian Jiaxin , Gonçales Vinicius R. , Gooding J. Justin , Tilley Richard D.
Published: February 2021

Pt islands with different sizes were grown on amorphous Ni nanoparticles, allowing the tuning of the Pt–Ni interface without changing the hydrogen binding energy of the Pt sites.
Carbene-mediated synthesis of a germanium tris(dithiolene)dianion
Authors: Tran Phuong M. , Wang Yuzhong , Xie Yaoming , Wei Pingrong , Schaefer Henry F. , Robinson Gregory H.
Published: February 2021

A germanium tris(dithiolene)dianion has been synthesizedviacarbene-mediated partial hydrolysis of a five-coordinate germanium bis(dithiolene) complex.
Lead-free Mn-doped antimony halide perovskite quantum dots with bright deep-red emission
Authors: Wang Aifei , Muhammad Faheem , Liu Yao , Deng Zhengtao
Published: February 2021

Lead-free Mn2+ doped Cs3Sb2Clx/Br9−x (0 ≤ x ≤9) perovskite QDs with bright deep-red emission of 660 nm were synthesized.
VUV photochemistry and nuclear spin conversion of water and water–orthohydrogen complexes in parahydrogen crystals at 4 K
Authors: Tahsildaran F Fatemeh S. , Moore Brendan , Bashiri Termeh , Otani Hatsuki , Djuricanin Pavle , Malekfar Rasoul , Farahbod Amir Hossein , Momose Takamasa
Published: February 2021

VUV irradiation of water in solid pH2 yields OH radicals which subsequently react with surrounding H2 rapidly via quantum tunneling.
Aqueous-phase fates of α-alkoxyalkyl-hydroperoxides derived from the reactions of Criegee intermediates with alcohols
Authors: Hu Mingxi , Qiu Junting , Tonokura Kenichi , Enami Shinichi
Published: February 2021

Criegee intermediates react with alcohols to produce α-alkoxyalkyl-hydroperoxides, R1R2C(–OOH)(–OR′). We found that a primary decomposition product of R1R2C(–OOH)(–OR′) in an acidic aqueous solution was a hemiacetal R1R2C(–OH)(–OR′) species.
Effective Debye relaxation models for binary solutions of polar liquids at terahertz frequencies
Authors: Zhou Juin W. , Arbab M. Hassan
Published: February 2021

Compared to the Bruggeman model, the proposed effective Debye models accurately predict the complex dielectric functions of alcohol–water mixtures. The improvements in the lower frequencies suggest that the calculations also describe the complex hydrogen-bond networks within the solutions.
LiEC(SiMe3)3(E = Se, Te) as a new donor of chalcogen atoms for the generation of binary [(RxGey)Ez] cage compounds with unique structural features
Authors: Kunz Tanja , Şahin Orhan , Schrenk Claudio , Schnepf Andreas
Published: February 2021

LiEC(SiMe3)3(E = Se, Te) acts as a donor of chalcogen atoms and as a substituent to give binary [(RxGey)Ez] cage compounds by the reaction with GeCl2·dioxane. These cage compounds show unique structural features within Ge/E cage compounds.
Economically viable CO2 electroreduction embedded within ethylene oxide manufacturing
Authors: Barecka Magda H. , Ager Joel W. , Lapkin Alexei A.
Published: February 2021

Integration of CO2 electroreduction into ethylene oxide plants significantly reduces CO2 emissions and is economically viable in the short term.
Effect of selenium-enriched kiwifruit on body fat reduction and liver protection in hyperlipidaemic mice
Authors: Zhang Xiaoni , Xia Haidong , Wang Jie , Leng Ruyue , Zhou Xiaojing , Gao Qian , He Kan , Liu Dahai , Huang Bei
Published: February 2021

This study aimed to investigate the effects and mechanism of selenium-enriched kiwifruit (Se-Kiwi) on lipid-lowering and liver protection in hyperlipidaemic mice induced by consuming a long-term high-fat diet.
In situvaccine application of inactivated CPMV nanoparticles for cancer immunotherapy
Authors: Chariou Paul L. , Beiss Veronique , Ma Yifeng , Steinmetz Nicole F.
Published: February 2021

Cowpea mosaic virus (CPMV) is currently in the development pipeline for multiple biomedical applications, including cancer immunotherapy.
Preparation and photocatalytic performance of silver-modified and nitrogen-doped TiO2nanomaterials with oxygen vacancies
Authors: Zhang Hong , Jiang Yingyu , Zhou Baiqin , Wei Zhuo , Zhu Zhenya , Han Lijuan , Zhang Ping , Hu Yingying
Published: February 2021

A modified hydrothermal method for the synthesis of TiO2material to achieve a more efficient visible light response.
Validation of the supramolecular synthon preference through DFT and physicochemical property investigations of pyridyl salts of organo-sulfonates
Authors: Ganie Arshid A. , Ismail Thufail M. , Sajith P. K. , Dar Aijaz A.
Published: February 2021

Understanding of the supramolecular synthon competition is sparse and the synthon hierarchy studies are limited. Herein, we validate the synthon preferences in multi-functional organic precursor through DFT and crystallographic studies.
Improving the electrocatalytic activity and stability of spinel sulfide counter electrodes by trimetallic synergy effects for quantum dot sensitized solar cells
Authors: Liu Zihao , Tian Zizun , Chen Qianqiao , Zhong Qin
Published: February 2021

Spinel trimetallic sulfide M0.5Ni0.5Co2S4 (M = Cu and Mn) nanostructures are designed and synthesized for the first time via a facile one-pot solvothermal strategy and used as efficient counter electrodes (CEs) for quantum dot sensitized solar cells (QDSSCs).
Biocatalytic oxidation of alcohols using galactose oxidase and a manganese(iii) activator for the synthesis of islatravir
Authors: Johnson Heather C. , Zhang Shaoguang , Fryszkowska Anna , Ruccolo Serge , Robaire Sandra A. , Klapars Artis , Patel Niki R. , Whittaker Aaron M. , Huffman Mark A. , Strotman Neil A.
Published: February 2021

Manganese(iii) acetate activates galactose oxidase (GOase), a Cu-dependent metalloenzyme that catalyzes the oxidation of alcohols to aldehydes.
Alkaline earth atom doping-induced changes in the electronic and magnetic properties of graphene: a density functional theory study
Authors: Serraon Ace Christian F. , Del Rosario Julie Anne D. , Abel Chuang Po-Ya , Chong Meng Nan , Morikawa Yoshitada , Padama Allan Abraham B. , Ocon Joey D.
Published: February 2021

Alkaline earth atom dopants on graphene induce work function tuning and spin polarized electronic properties by ionic bonding.
Polycentric binding in complexes of trimethylamine-N-oxide with dihalogens
Authors: Zarechnaya Olga M. , Anisimov Aleksei A. , Belov Eugenii Yu , Burakov Nikolai I. , Kanibolotsky Alexander L. , Mikhailov Vasilii A.
Published: February 2021

Dihalogens readily interact with trimethylamine-N-oxide under ambient conditions. Stable 1 : 1 adducts were obtained in a case of iodine chloride and iodine bromide. Formally monodentate ligands are bound in a polycentric manner.
Atomic-scale intermolecular interaction of hydrogen with a single VOPc molecule on the Au(111) surface
Authors: Jung Jinoh , Nam Shinjae , Wolf Christoph , Heinrich Andreas J. , Chae Jungseok
Published: February 2021

Molecular dynamics of hydrogen molecules trapped in micro-cavity between atomic-scale tip and VOPc molecules on surface and intermolecular interactions have been studied by using scanning tunneling spectroscopy and atomic force microscopy at atomic-scale.
Miniaturized electrocoagulation approach for removal of polymeric pigments and selective analysis of non- and mono-hydroxylated phenolic acids in wine with HPLC-UV
Authors: Chindaphan Kanokporn , Thaveesangsakulthai Isaya , Naranaruemol Suchapa , Nhujak Thumnoon , Panchompoo Janjira , Chailapakul Orawon , Kulsing Chadin
Published: February 2021

Electrocoagulation (EC) approach was developed to allow fast sample clean-up step prior to selective analysis of non- and mono-hydroxylated phenolic acids in red wine samples with high performance liquid chromatography hyphenated with UV detection (HPLC-UV).
Hybrid material by anchoring a ruthenium(ii) imine complex to SiO2: preparation, characterization and DFT studies
Authors: Benitez-Medina G. Eliad , Flores Raúl , Vargas Luis , Cuenú Fernando , Sharma Pankaj , Castro Miguel , Ramírez Alfonso
Published: February 2021

Ruthenium–silica hybrid materials were synthesized. The process was tracked by FT-IR, DRS-UV-Vis, DFT and deconvolution analyses, finding experimental–theoretical correlation.
Physiological effect of colloidal carbon quantum dots on Bursaphelenchus xylophilus
Authors: Han Yi , Han Yaqian , Du Guicai , Zhang Tingting , Guo Qunqun , Yang Hong , Li Ronggui , Xu Yuanhong
Published: February 2021

Bursaphelenchus xylophilus (B. xylophilus) is a dangerous plant pest which could result in Pine Wild Disease (PWD).
In vitrobiocompatibility of a sandblasted, acid-etched HA composite coating on ultrafine-grained titanium
Authors: Chi Yanxia , An Sipeng , Xu Yunpeng , Liu Mingda , Zhang Jie
Published: February 2021

A sandblasted, acid-etched hydroxyapatite (SLA-HA) composite coating on ultrafine-grained titanium was synthesized by sandblasting, acid etching and electrophoresis deposition.
Review on carbonaceous materials and metal composites in deformable electrodes for flexible lithium-ion batteries
Authors: Islam Jahidul , Chowdhury Faisal I. , Uddin Join , Amin Rifat , Uddin Jamal
Published: February 2021

With the rapid propagation of flexible electronic devices, flexible lithium-ion batteries are emerging as the most promising energy supplier among all of the energy storage devices due to high energy and power densities with good cycling stability.
The electronic structure and deexcitation pathways of an isolated metalloporphyrin ion resolved by metal L-edge spectroscopy
Authors: Schubert Kaja , Guo Meiyuan , Atak Kaan , Dörner Simon , Bülow Christine , von Issendorff Bernd , Klumpp Stephan , Lau J. Tobias , Miedema Piter S. , Schlathölter Thomas , Techert Simone , Timm Martin , Wang Xin , Zamudio-Bayer Vicente , Schwob Lucas , Bari Sadia
Published: February 2021

Near-edge X-ray absorption mass spectrometry (NEXAMS) and restricted active space (RAS) quantum mechanical calculations at the metal L-edge reveal the electronic structure and orbital-specific deexcitation pathways of gas-phase metalloporphyrins.
On the mechanism of the formation of alkyl-Ni(i) catalysts
Authors: Quirós M. Teresa , Collado-Sanz Daniel , Buñuel Elena , Cárdenas Diego J.
Published: February 2021

Formation of catalytically competent alkyl-Ni(i) complexes involves comproportionation of diakyl-Ni(ii) and Ni(0) species and inversion of the configuration.
Flexible amorphous metal–organic frameworks with π Lewis acidic pore surface for selective adsorptive separations
Authors: Fonseca Javier , Choi Sunho
Published: February 2021

Adsorption of VOCs and selective separation of LHs are achieved by using flexible aMOFs with π Lewis acidic pore surfaces.
Modulating the magnetization dynamics in Ln–Cu-Rad hetero-tri-spin complexes through cis/trans coordination of nitronyl nitroxide radicals around the metal center
Authors: Lu Jiao , Jing Pei , Jin Chaoyi , Xie Junfang , Li Licun
Published: February 2021

The magnetic relaxation behaviors of two radical-Cu–Dy complexes were modulated by controlling the coordination modes of the nitronyl nitroxide radicals.
Endothelialization of an ePTFE vessel prosthesis modified with an antithrombogenic fibrin/heparin coating enriched with bound growth factors
Authors: Táborská Johanka , Riedelová Zuzana , Brynda Eduard , Májek Pavel , Riedel Tomáš
Published: February 2021

A fibrin/heparin coating enriched with bound growth factors was developed and applied on an ePTFE vessel prosthesis. The coating exhibited excellent antithrombogenic properties and supported endothelialization of the ePTFE vessel.
Emerging approaches to measure photosynthesis from the leaf to the ecosystem
Authors: Siebers Matthew H. , Gomez-Casanovas Nuria , Fu Peng , Meacham-Hensold Katherine , Moore Caitlin E. , Bernacchi Carl J.
Published: February 2021

Measuring photosynthesis is critical for quantifying and modeling leaf to regional scale productivity of managed and natural ecosystems. This review explores existing and novel advances in photosynthesis measurements that are certain to provide innovative directions in plant science research. First, we address gas exchange approaches from leaf to ecosystem scales. Leaf level gas exchange is a mature method but recent improvements to the user interface and environmental controls of commercial systems have resulted in faster and higher quality data collection. Canopy chamber and micrometeorological methods have also become more standardized tools and have an advanced understanding of ecosystem functioning under a changing environment and through long time series data coupled with community data sharing. Second, we review proximal and remote sensing approaches to measure photosynthesis, including hyperspectral reflectance- and fluorescence-based techniques. These techniques have long been used with aircraft and orbiting satellites, but lower-cost sensors and improved statistical analyses are allowing these techniques to become applicable at smaller scales to quantify changes in the underlying biochemistry of photosynthesis. Within the past decade measurements of chlorophyll fluorescence from earth-orbiting satellites have measured Solar Induced Fluorescence (SIF) enabling estimates of global ecosystem productivity. Finally, we highlight that stronger interactions of scientists across disciplines will benefit our capacity to accurately estimate productivity at regional and global scales. Applying the multiple techniques outlined in this review at scales from the leaf to the globe are likely to advance understanding of plant functioning from the organelle to the ecosystem.
The infrared-radio correlation of star-forming galaxies is stronglyM⋆-dependent but nearly redshift-invariant sincez∼ 4
Authors: Delvecchio I. , Daddi E. , Sargent M. T. , Jarvis M. J. , Elbaz D. , Jin S. , Liu D. , Whittam I. H. , Algera H. , Carraro R. , D’Eugenio C. , Delhaize J. , Kalita B. S. , Leslie S. , Molnár D. Cs. , Novak M. , Prandoni I. , Smolčić V. , Ao Y. , Aravena M. , Bournaud F. , Collier J. D. , Randriamampandry S. M. , Randriamanakoto Z. , Rodighiero G. , Schober J. , White S. V. , Zamorani G.
Published: February 2021

Over the past decade, several works have used the ratio between total (rest 8−1000μm) infrared and radio (rest 1.4 GHz) luminosity in star-forming galaxies (qIR), often referred to as the infrared-radio correlation (IRRC), to calibrate the radio emission as a star formation rate (SFR) indicator. Previous studies constrained the evolution ofqIRwith redshift, finding a mild but significant decline that is yet to be understood. Here, for the first time, we calibrateqIRas a function ofbothstellar mass (M⋆) and redshift, starting from anM⋆-selected sample of > 400 000 star-forming galaxies in the COSMOS field, identified via (NUV − r)/(r − J) colours, at redshifts of 0.1 < z < 4.5. Within each (M⋆,z) bin, we stacked the deepest available infrared/sub-mm and radio images. We fit the stacked IR spectral energy distributions with typical star-forming galaxy and IR-AGN templates. We then carefully removed the radio AGN candidates via a recursive approach. We find that the IRRC evolves primarily withM⋆, with more massive galaxies displaying a systematically lowerqIR. A secondary, weaker dependence on redshift is also observed. The best-fit analytical expression is the following:qIR(M⋆, z) = (2.646 ± 0.024) × (1 + z)( − 0.023 ± 0.008)–(0.148 ± 0.013) × (log M⋆/M⊙ − 10). Adding the UV dust-uncorrected contribution to the IR as a proxy for the total SFR would further steepen theqIRdependence onM⋆. We interpret the apparent redshift decline reported in previous works as due to low-M⋆galaxies being progressively under-represented at high redshift, as a consequence of binning only in redshift and using either infrared or radio-detected samples. The lower IR/radio ratios seen in more massive galaxies are well described by their higher observed SFR surface densities. Our findings highlight the fact that using radio-synchrotron emission as a proxy for SFR requires novelM⋆-dependent recipes that will enable us to convert detections from future ultra-deep radio surveys into accurate SFR measurements down to low-M⋆galaxies with low SFR.
Research on the incentive of Government subsidy in the Innovation ecosystem of Guangzhou New Energy Automobile Industry
Authors: Zhang Xueyu , Li Wenyong
Published: February 2021

Led by made in China 2025 and the 13th five-year Plan of Guangdong Province, the development of strategic emerging industries in Guangdong Province needs to build an innovation ecosystem. In the development of industrial innovation, the management and development of enterprises are affected by policy environment, technological innovation, talent incentive and so on. The profit transformation ability, research and task development ability of core enterprises still need to be improved. On this basis, this paper takes Guangzhou as an example to investigate the current situation of incentive implementation of innovative industry and the role of industrial technological innovation from the starting point of government subsidy policy.Through the analysis of the different roles in each stage of the innovation process to achieve complementary advantages, the transformation of enterprise management mechanism, highlight the incentive mechanism of the innovation ecosystem, and achieve the healthy development of the industrial innovation ecosystem.
The Effect of Beijing-Shanghai High-Speed Railway on the Economic Development of Prefecture-Level Cities Along the Line Based on DID Model
Authors: Ma Yuzhou
Published: February 2021

High-speed railway has an essential impact on the economic and social development of the regions along the line. Based on the Beijing-Shanghai high-speed railway, this paper constructs the DID model and analyzes the impact of Beijing-Shanghai high-speed railway on the economic development of prefecture-level cities along the route from the empirical perspective. The empirical analysis results show that the BeijingShanghai high-speed railway has a significant negative impact on the per capita GDP of prefecture-level cities along the line in the short term, mainly because the agglomeration effect is greater than the diffusion effect. Therefore, small cities should actively think about how to deal with the agglomeration effect caused by the construction of high-speed rail.
Analysis of Bangladesh’s macroeconomic development
Authors: Tang Qiming , Li Meijuan
Published: February 2021

In recent years, the economy of Bangladesh has a rapid growth, with the total GDP increasing by years, reaching $274 billion in 2018. GDP per capita is relatively low, but it grows steadily every year. GDP growth has been above 7% since 2016, and reached 7.86% in 2018.Bangladesh’s unemployment rate remains around 4.2%; the rate of inflation is generally on the decline, and the total volume of imports and exports increases steadily. But, its import and export trade has been in deficit, and the deficit has been expanding by years. Foreign direct investment is at a low level, accounting for less than 2% of GDP. The current account balance fluctuates in a large range, and it ran a current account deficit in 2017.
Capital account opening and economic growth——an empirical test based on systematic GMM
Authors: Jia Siming
Published: February 2021

This paper collected panel data of 74 countries from 1990 to 2017, and based on the Chinn-It index to depict the degree of capital account opening. Under the framework of the neoclassical economic growth model, the impact of capital account opening on economic growth was empirically tested by systematic GMM. The results show that: first, taking the overall capital account openness as the explanatory variable, the coefficient of the capital account openness of the whole sample is significantly positive. Further, considering the national differences found that high income countries capital account openness coefficient is significantly positive, but in low and middle-income countries capital account openness coefficient on economic and statistical significance were not significant, indicating that high income countries made open dividends, while in low and middle-income countries and earnings in the capital account liberalization. Finally, it proposes to open the capital account sub-projects step by step, strengthen prudent supervision in the process of further opening the capital account, and improve the regulatory legal system.
The Crowd-Out Effect of Government Debt on Firm Leverage
Authors: Xia Xiaomiao , Liao Jingyue , Shen Zitang
Published: February 2021

Based on the data of 21 provinces from 2000 to 2018, this paper empirically examines the impact of government debt on corporate financing decisions, and finds that there is a negative correlation between government debt and corporate leverage. In large enterprises, private enterprises and enterprises in economically developed areas, the negative relationship is stronger. In order to deal with the potential endogenous problems, we use the government debt excluding the province GDP as the instrumental variable, and take the financial crisis and the 4 trillion policy as the division point to divide two periods of time as the robustness test. The results show that government debt crowds out corporate debt.
Analysis on Improvement of Ownership Structure and Dividend—Take Apple as an Example
Authors: Li Yuting
Published: February 2021

Equal equity is not a suitable pathway to control the corporations. For Apple Company, due to Jobs’ equal equity, the most important reason that he quitted his company is that at the first step of the company, he had the same shares as other members of the board, but he did not have the absolute control of his company. Also, after the corporation was listed, the shares have been diluted gradually. Losing the control right, Jobs cannot make wise decisions or seek for strategic chances to make a huge profit, when members of the board held diverse opinions. Therefore dual-class share structure and ownership systems are the better choice for founders and entrepreneurs to operate and control the company. Managers have absolute control of the corporations so that they could make intellectual decisions without disturbance and intervention. Companies, accumulating a large amount of money, could pay dividends to shareholders and buy stocks.
The Impact of Share Repurchase on the Value of Listed Companies Take Alibaba Group as an Example
Authors: Yang Mingzhu
Published: February 2021

Share repurchase is a common dividend policy and financial policy in western listed companies. The share repurchase policy has some positive and negative effects on the company. Therefore, this paper takes Alibaba Group as an example, and studies its share repurchase policy from 2014 after its listing to 2019. A theoretical and empirical analysis on the profitability, market value and stock price of listed companies through share repurchase is conducted. The result shows that it has positive effects on corporate profitability, market value and capital structure. At last, suggestions based on the analysis are proposes.
The Influence of Regional Resident Human Capital Investment on Income Gap Based on the perspective of population migration
Authors: Ding Mingfei , Pei Jinsong
Published: February 2021

With the development of China’s economic level and transportation, China’s population migration scale is constantly enhanced, population migration investment way of human capital investment, has a greater impact on the income level of residents. This paper analyzes the mechanism of population migration’s influence on the income gap and research achievements of predecessors, then on the basis of the eight regional division, has analyzed china area ask migration scale and the present situation of the income gap, and finally by constructing panel data model, the empirical test population migration’s influence on regional smell of resident’s income gap. Finally, it is found that investment in population migration has a long-term positive effect on the income gap.
Financing Constraints and Stock Price Volatility Empirical Evidence from Shanghai and Shenzhen A-share listed Companies
Authors: Xiang Xuan , Dong Fei , Chen Junxiu
Published: February 2021

Based on the theoretical analysis of financing constraints and stock price volatility, the hypothesis of “corporate financing constraints inhibiting corporate stock price volatility” is proposed. After data cleaning, the cross-sectional data based on A-share was used to make an empirical analysis of the relationship between financing constraints and stock price volatility of listed companies in 2018 through regression model. The study found that when companies relax financing constraints, due to widespread overinvestment, the stock price of companies will fluctuate more. In addition, we have shown that by replacing the return of financing constraint indicators and the regression of subsamples based on enterprise size, market type and ownership, the conclusion of the study is more robust. The research reveals the mechanism of the impact of financing constraints on the volatility of corporate stock prices. The conclusions have practical significance for investors, corporations and relevant regulatory authorities.
Mould and Process of an Injection Molding Rejuvenation Technique for Cable Insulation Failure
Authors: Yang XiaoJian , Zhao YongXiang , Wang JunGuo , Liu ZhiWei
Published: February 2021

Mould and process are developed for an injection molding rejuvenation technique of cable insulation failure. Disregard the traditional clue that repair does not expand original damage in size and space, a new rejuvenation technique, i.e. injection molding, is developed for restoring cable insulation failure. In this technique the uncertain damage in size and space was replaced by a standard eliminated size and space. In this way, an expanded original damage with certain size and space is firstly made around cable insulation failure section. But the damage situation was modified to a standard mode so that a mould technology can be well applied to filling the modified size and space. In addition, the bigger size and space is applied by mould for over-filling the modified size and space. Then a standard process should be constructed by the repair practices till the quality testing verifies that a successful rejuvenation is reached. Applied practice has verified the applicability and availability of the present technique.
Rapid Evaluation Method for Accuracy of Range Estimation of Pure Electric Vehicle Range Estimation Based on CLTC-P
Authors: Dai Tianlu , Zhou Boya , Zhang Yanyi , Chen Guang , Liu Peng
Published: February 2021

Based on theoretical and experimental research, this paper constructs a rapid test method for estimating the accuracy of the range of pure electric vehicles based on CLTC-P, which is based on different environmental temperatures, air conditioning use, test scenarios, and high-speed operating conditions. The article further compares and analyzes a variety of mathematical statistical methods and selects certain coefficients to evaluate the accuracy of cruising range estimation, and proposes a general rapid test method and evaluation theory of cruising range estimation accuracy, which lays the foundation for establishing a unified assessment standard in industry, and promotes the development of the electric vehicle industry.
Research on the Training Mode of management professionals from the perspective of modern economy and Finance
Authors: Gao Yuguo
Published: February 2021

With the continuous development of Chinese science, and the improvement of the comprehensive national strength in education, more and more attention has been paid to the university education opened different specialized subjects for the study of professional knowledge. With the development of The Times and economy, the study of a single professional discipline has been difficult to meet the needs of various positions, so each discipline should be crossed and integrated, actively respond to the call of the state to innovate and train new talents, adapt to the national development.
An Empirical Study of the Impact of RMB Exchange Rate Fluctuations on Sino-US Trade
Authors: Ni Yatong
Published: February 2021

In recent years, the US has urged the yuan to appreciate in order to resolve its trade deficit with China. This article systematically analyzes the basic situation of the RMB exchange rate changes and the development of Sino-US import and export trade in the past 20 years, and uses Eviews to construct a measurement model to confirm that the impact of the RMB exchange rate on Sino-US trade is not as good as the economic development of the importing country The impact is significant, and the intention of the United States to improve the trade deficit by prompting the appreciation of the renminbi is ineffective. It also puts forward the policy recommendations that attach importance to the impact of excessive US consumption on Sino-US trade volume. The US should liberalize strict controls on China’s exports, further optimize the product structure of China’s imports and exports, and establish exchange rate risk prevention mechanisms.
Research on the Influence of Brand Certification on Farmers’ Professional Cooperatives Participating in E-commerce
Authors: Liu Guoqiang , Zhang Bizhong , Fu Xinhong , Zhang Ruixin
Published: February 2021

Based on the microscopic survey data of 100 vegetable cooperatives in Sichuan Province, this paper empirically analyzes the influence of brand certification on cooperatives participating in the ecommerce by binary logistic regression model. The results show that the proportion of Sichuan vegetable cooperatives participating in the e-commerce is generally lower, which needs further improvement. Brand certification has a positive role in promoting cooperatives to participate in the e-commerce, with a marginal contribution of 19.7%. In addition, government sales support has a positive impact on the cooperative ecommerce, which is an important guarantee for promoting cooperatives to participate in the e-commerce. While the difficulty of agricultural product sales has a negative impact on the cooperative e-commerce, and the more difficult the agricultural products are sold, the higher the probability that the cooperative will participate in the e-commerce. Thus, this article puts forward policy suggestions such as actively promoting cooperatives to participate in brand certification, promoting cooperatives to participate in the e-commerce according to local conditions and strengthening government sales support.
The Design Path of the Employee Stock Ownership Scheme of the Conventional Holding and Mixed Ownership Enterprises
Authors: Wang Han , Huo Aimin
Published: February 2021

Employee stock ownership is one of the common medium and long-term incentive methods for state-controlled mixed ownership. As the current state-controlled mixed-ownership enterprise employee shareholding is still in the pilot stage, the State-owned Assets Supervision and Administration Commission of the State Council is still relatively strict on the implementation of relevant conditions for enterprises. Based on the analysis and research on the relevant policies and corporate practices of employee stock ownership, this paper puts forward the implementation path of state-controlled mixed ownership enterprises to carry out employee stock ownership, and gives reminders and early warnings of common risks in the implementation process.
Problems and Countermeasures of Human Resource Management in Small and Medium Sized Enterprises
Authors: Chen Yingdong , Xing Jian , Sun Xiaocheng
Published: February 2021

Due to their own attributes, small and medium-sized enterprises are quite different from large enterprises in various aspects of enterprise management, especially in human resource management. In mature large enterprises, there is a relatively perfect human resource management system, while in small and medium-sized enterprises, most enterprises have a set of human resource management mode, but on the whole, it is not perfect and has many problems. This paper takes small and medium-sized enterprises as the research foothold, studies the problems in human resource management, discusses the relevant research countermeasures, and provides suggestions and reference for the human resource management of small and medium-sized enterprises.
Research on Improvement Mechanism of Financial Management to Service Capability of Chinese Technological Small and Medium Enterprises
Authors: Zhang Yuan , Chen Ying
Published: February 2021

Technological SMEs are committed to the commercialization of scientific and technological achievements, and conducive to meeting social needs, increasing employment and promoting technological progress. However, in the actual development process, there are problems such as weak financial management ability and low external service level restricted development of Chinese technological SMEs. This paper analyzes the mechanism and existing problems of the financial management of Chinese technological SEMs in improving their service ability, and explores ways to improve their financial management and service capability.
Applications of Managerial Economics in Business Pricing Strategies
Authors: Ke Yunhao
Published: February 2021

Pricing Strategies are crucial determinants of business success in terms of sales revenue and profitability. This article introduces some key concepts in managerial economics such as price bundling that have significant applications in sophisticated business pricing. The concepts are illustrated separately through detailed theory explanation with graphical analysis, and a real-life business case is briefly discussed for each of these concepts to demonstrate the practical applications of the theoretical ideas. It can be concluded that although some limitations have to be taken into account, these ideas still provide essential insights into the pricing process and can effectively improve firms’ profit conditions.