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Electromagnetic Characteristics and Corrosion Resistance of New Magnetosoft Materials Based on Capsulated Iron Powders

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Chemical Research in Chinese Universities 2020年第6期36卷 1326-1331页

作者： Alexander VETCHER Gennady GOVOR Olga DEMIDENKO Virgil CONSTANTIN ana Maria POPESCU Scientific-Practical Materials Research Centre National Academy of BelarusP.Brovki 19 Str.220072 MinskBelarus “IlieMurgulescu”Institute of Physical Chemistry of Romanian Academy Laboratory of Electrochemistry and CorrosionSplaiullndependentei 202Bucharest 060021Romania

A new method of depositing an insulating multifunctional oxide coating on metal particles was *** coatings increase corrosion resistance and insulate metal particles from each *** base of capsulated by oxide coating water-atomized iron powder ASC100.29,new composite soft magnetic materials were synthesized,which are able of replacing electrical steel in ***,electromagnetic properties and corrosion characte-ristics of the obtained composites were *** was found that the synthesized composite materials have low elec-tromagnetic losses,high values of magnetic induction(up to 2.1 T)and good corrosion *** results demon-strate that the use of such materials in power supplies,c hokes,transformers,stators and rotors of electric machines and other products ensures their stable operation under various conditions.

关键词： Soft magnetic composite material Iron powder Insulating cover High-frequency transformer Stators and rotors of electro machine

Adsorption of neodymium,terbium and dysprosium using a synthetic polymer-based magnetic adsorbent

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Journal of Rare Earths 2023年第11期41卷 1796-1804,I0006页

作者： Hamedreza Javadian Mehdi Taghavi Montserrat Ruiz Inderjeet Tyagi Majid Farsadrooh ana Maria Sastre Department of Chemical Engineering ETSEIBUniversitat Politècnica de CatalunyaDiagonal 64708028BarcelonaSpain Department of Chemistry Faculty of ScienceShahid Chamran University of Ahvaz61357-43337Iran Department of Chemical Engineering EPSEVGUniversitat Politècnica de CatalunyaAv.Víctor Balaguers/n08800Vilanova i la GeltrúSpain Centre for DNA Taxonomy Molecular Systematics DivisionZoological Survey of IndiaKolkata700053India Renewable Energies Research Laboratory Department of ChemistryFaculty of ScienceUniversity of Sistan and BaluchestanP.O.Box 98135674ZahedanIran

In this study,a polyamide with methine-thiophene and pyrimidine linkages(poly(pyrimidine-thiophene-amide)(PPTA))was ***,magnetic PPTA(M-PPTA)was synthesized using the hydrothermal *** products were analyzed by Fourier-transform infrared spectroscopy(FTIR),nuclear magnetic resonance(NMR),X-ray diffraction(XRD),thermogravimetric analysis(TGA),field-emission scanning electron microscopy(FE-SEM),and a vibrating-sample magnetometer(VSM).The nanocomposite exhibits a saturation magnetization of 50.44 emu/g recorded by VSM *** ability of M-PPTA to bind dysprosium(Dy^(3+)),terbium(Tb^(3+)),and neodymium(Nd^(3+))was *** 0.15 g of M-PPTA to test the adsorption of the rare earth elements(50 mg/L)at pH=5.5,the percentage of adsorption for Dy^(3+),Tb^(3+),and Nd^(3+)is 98.41%,97.48%and 95.67%,***-second-order(PSO)significantly fits the adsorption kinetic *** equation was used to describe the adsorption equilibrium data of Dy^(3+)and Tb^(3+),while Langmuir model was used to simulate Nd^(3+)adsorption *** the temperature leads to an increase in the performance of M-PPTA,and an endothermic adsorption process was confirmed by the positive values ofΔ*** four adsorption-desorption cycles,the efficiency of adsorption of Dy^(3+),Tb^(3+),and Nd^(3+)by M-PPTA is88.75%,86.37%,and 84.64%,*** antagonism effect is observed for the adsorption of the individual ions in a ternary solution.

关键词： Polyamide Lanthanides Magnetic nanocomposite Adsorption Rare earth elements

An illustrated checklist of macrofaunal molluscs from soft-sediments of the Abrolhos Parcel(northeastern,Brazil)with 15 new records

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Journal of Oceanology and Limnology 2021年第2期39卷 671-682页

作者： Flávia Maria Pereira da COSTA ana Maria Setubal PIRES-VANIN Departamento de Oceanografi a Biológica Instituto Oceanográfi coUniversidade de São PauloSão Paulo 05508-120Brazil

Comprehensive understanding of marine biodiversity is essential for conservation,especially for vulnerable *** this paper,we implemented and illustrated a checklist of molluscs from the Abrolhos Parcel,Brazil,the most important coralline area in South Atlantic *** list features 100 species belonging to 4 classes and 85 genera,of which 15 are new records for Bahia State,northeast *** results highlight the potential for new records in the *** species came from 54 unconsolidated sediment samples collected from the bottom of the reef with a 0.042-m^(2) van Veen *** the listed species,Curveulima sp.,Notarchus *** Guyanella clenchi are new records for the South Atlantic,while Caecum metamorphosicum,Eratoidea janeiroensis,Volvarina serrei,Solemya notialis,Solariorbis shimeri,and Amphithalamus glabrus are endemic to Brazilian waters.A comparison of our results with those obtained in other reef environments indicates that the Abrolhos Parcel has a rich malacofauna and suggests that many more species can still be found with more samplings.

关键词： Bivalvia Gastropoda micromolluscs Scaphopoda Solenogastres southwest Atlantic

Monoclonal Antibody Production and Immunolocalization of a Salinity Stress-Related Protein in Rice (Oryza sativa)

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Rice science 2011年第2期18卷 95-101页

作者： Jackson MARCONDES ana Beatriz GARCIA Faculdade de Ciências Agrárias e Veterinárias Universidade Estadual Paulista Centro de Biociências e Biotecnologia Universidade Estadual do Norte Fluminense

Among various physiological responses to salt stress, the synthesis of a lectin-related protein of 14.5 kDa was observed in rice plants （Oryza sativa L.） under the treatment of 170 mmol/L NaCl. In order to better understand the role of the SALT protein in the physiological processes involving salinity, it was irnmunolocalized in mesophilic cells of leaf sheath and blade of a rice variety IAC-4440 following monoclonal antibodies produced by hybridome culture technique. This variety turned out to be an excellent model for that purpose, since it accumulates SALT protein even in absence of salt treatment and it has been classified as moderately sensitive to salinity and a superior grain producer. This feature was relevant for this work since it allowed the use of plants without the deleterious effects caused by salinity. Immunocytochemistry assays revealed that the SALT protein is located in the stroma of chloroplasts under non-stressing condition. Since the chloroplast is the main target affected by salinity and considering that the SALT protein does not present any apparent signal peptide for organelle localization, its lectin-like activity seems to play an important role in the establishment of stable complexes, either to other proteins or to oligosaccharides that are translocated to the chloroplast.

关键词： salt stress SALT protein immunocytochemistry chloroplast rice

Content and bioaccessibility of bioactive compounds with potential benefits for macular health in tiger nut products

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Food Bioscience 2022年第5期49卷 313-321页

作者： Ever Hern´andez-Olivas Andrea Asensio-Grau Joaquim Calvo-Lerma Jorge García-Hern´andez ana Heredia ana Andr´es Instituto Universitario de Ingeniería para el Desarrollo(IU-IAD) Universitat Polit`ecnica de Val`enciaCamino de Vera s/nValenciaC.P46022Spain Centro Avanzado de Microbiología de Alimentos(CAMA) Universitat Polit`ecnica de Val`enciaCamino de Vera s/nValenciaC.P46022Spain

Clinical studies have associated the consumption of tiger nuts(Cyperus esculentus L.),and its derivates,with improved macular health,due to the presence of certain liposoluble compounds with antioxidant activity,especially to lutein and ***,the benefits derived from ingestion of tiger nut products may vary depending on the release of these compounds from the food matrix to the digestive fluids and their eventual ***,this study aims at evaluating the influence of the food matrix on the liberation and final bioaccessibility of bioactive compounds with positive impact on macular health in different tiger nut products(flour,oil,and milk with and without added sucrose).The in vitro digestibility of macronutrients and the release of vitamin E,lutein,zeaxanthin,β-carotene,and total polyphenols of tiger nut products was *** addition,the antioxidant activity of the bioaccessible fraction was determined by ABTS,DPPH and FRAP *** showed that tiger nut milk resulted in the greatest proteolysis and total polyphenols ***,flour can contribute to hypoglycaemia and,alongside oil,were the best sources of carotenoids and vitamin *** digestion increased the antioxidant activity of milk,but the addition of sucrose decreased this *** food matrix was a highly relevant factor protecting or hindering the digestion and release of bioactive compounds in the digestive ***,tiger nut products are presented as ingredients with great potential to develop functional foods oriented to macular health.

关键词： In vitro digestion Flour Milk Oil Antioxidant properties Liposoluble compounds

Oral stem cells,decoding and mapping the resident cells populations

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Biomaterials Translational 2022年第1期3卷 24-30页

作者： Xuechen Zhang ana Justo Caetano Paul T.Sharpe ana Angelova Volponi Centre for Craniofacial and Regenerative Biology Faculty of DentistryOral&Craniofacial SciencesKing’s College University of LondonLondonUK Laboratory of Odontogenesis and Osteogenesis Institute of Animal Physiology and GeneticsCASv.v.i.BrnoCzech Republic

The teeth and their supporting tissues provide an easily accessible source of oral stem *** different stem cell populations have been extensively studied for their properties,such as high plasticity and clonogenicity,expressing stem cell markers and potency for multilineage differentiation in *** cells with stem cell properties have been derived and characterised from the dental pulp tissue,the apical papilla region of roots in development,as well as the supporting tissue of periodontal ligament that anchors the tooth within the alveolar socket and the soft gingival *** the dental pulp stem cell populations in a continuously growing mouse incisor model,as a traceable in vivo model,enables the researchers to study the properties,origin and behaviour of mesenchymal stem *** the other side,the oral mucosa with its remarkable scarless wound healing phenotype,offers a model to study a well-coordinated system of healing because of coordinated actions between epithelial,mesenchymal and immune cells *** described as homogeneous cell populations following their in vitro expansion,the increasing application of approaches that allow tracing of individual cells over time,along with single-cell RNA-sequencing,reveal that different oral stem cells are indeed diverse populations and there is a highly organised map of cell populations according to their location in resident tissues,elucidating diverse stem cell niches within the oral *** review covers the current knowledge of diverse oral stem cells,focusing on the new approaches in studying these *** approaches“decode”and“map”the resident cells populations of diverse oral tissues and contribute to a better understanding of the“stem cells niche architecture and *** the high accessibility and simplicity in obtaining these diverse stem cells,the new findings offer potential in development of translational tissue engineering approaches and innovativ

关键词： dental pulp stem cells dental stem cells gingival stem cells periodontal ligament stem cells stem cells from apical papilla

Non-alcoholic fatty liver disease,non-alcoholic steatohepatitis,metabolic syndrome and hepatocellular carcinoma——a composite scenario

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Hepatobiliary Surgery and Nutrition 2018年第2期7卷 130-133页

作者： Luca Viganò ana Lleo Alessio Aghemo Division of Hepatobiliary and General Surgery Department of SurgeryHumanitas Clinical and Research CenterHumanitas UniversityRozzanoMilanItaly Department of Biomedical Sciences Humanitas UniversityRozzanoMilanItaly Division of Internal Medicine and Hepatology Department of Internal MedicineHumanitas Clinical and Research CenterHumanitas UniversityRozzanoMilanItaly

Hepatocellular carcinoma(HCC)is the fifth most common cancer and the second leading cause of cancer-related death *** data suggest that the epidemiology of HCC is changing;while the frequencies of hepatitis B virus(HBV)-and hepatitis C virus(HCV)-related HCC are progressively decreasing owing to the development of nucleo(t)side-based therapies and directly acting antiviral agents,respectively,the frequency of cryptogenic HCC continues to increase(15–30%of cases)(1).The rise of cryptogenic HCC is mainly related to non-alcoholic fatty liver disease(NAFLD)(1,2).NAFLD encompasses a wide spectrum of liver injuries,ranging from steatosis to non-alcoholic steatohepatitis(NASH),which may progress to cirrhosis(1,3).

关键词： epidemiology liver NAFLD death

First Serological Evidence on Endemicity of HEV Infection in Wild Boar(Sus scrofa) Populations from Portugal

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Virologica Sinica 2018年第2期33卷 197-200页

作者： Daniel Goncalves Joao Pereira-Vaz Vitor Duque Victor Bandeira Carlos Fonseca ana Donato Cristina Luxo ana Miguel Matos Laboratory of Virology Faculty of Pharmacy University of Coimbra 3000-548 Coimbra Portugal Laboratory of Molecular Biology Clinical Pathology UnitHospital and University Centre of Coimbra3000-602 Coimbra Portugal Infectious Diseases Department Hospital and University Centre of Coimbra 3000-075 Coimbra Portugal Biology Department and CESAM University of Aveiro3810-193 Aveiro Portugal Clinical Laboratory Faculty of Pharmacy University of Coimbra 3000-548 Coimbra Portugal Research Centre on Chemical Processes Engineering and Forest Products (CIEPQF) Faculty of Pharmacy University of Coimbra 3030-790 Coimbra Portugal

Increasing number of hepatitis E virus（HEV）infection has been described in industrialized countries,with infection occurring as a sporadic disease,usually associated with travel to endemic regions or small outbreaks... 详细信息

关键词：感染 HEV 血清学葡萄牙野猪证据特性人口

L^p-gradient Estimates of Symmetric Markov Semigroups for 1 〈 p ≤ 2

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Acta Mathematica Sinica,English Series 2006年第1期22卷 101-104页

作者： ana Bela CRUZEIRO Xi Cheng ZHANG Department Matemdtica I.S.T. Av. Rovisco Pais 1099-01 Lisboa Portugal and Grupo de Fisica-Matemdtica U.L. Lisboa Portugal Department of Mathematics Huazhong University of Science and Technology Wuahan 430074 P. R. China

For 1 〈 p ≤2, an L^p-gradient estimate for a symmetric Markov semigroup is derived in a general framework, i.e. ‖Γ^/2（Ttf）‖p≤Cp/√t‖p, where F is a carre du champ operator. As a simple application we prove that F1/2（（I- L） ^-α） is a bounded operator from L^p to L^v provided that 1 〈 p 〈 2 and 1/2〈α〈1. For any 1 〈 p 〈 2, q 〉 2 and 1/2 〈α 〈 1, there exist two positive constants cq,α,Cp,α such that ‖Df‖p≤ Cp,α‖（I - L）^αf‖p,Cq,α（I-L）^（1-α）‖Df‖q＋‖f‖q, where D is the Malliavin gradient （[2]） and L the Ornstein-Uhlenbeck operator.

关键词： Symmetric Markov semigroup Carre du champ Path space