检索结果-南通市图书馆

Exploring innovative synthetic solutions f.r advanced polymer-based electrochromic energy storage devices:Phenoxazine as a promising chromophore

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of.Energy Chemistry 2024年第4期91卷 433-452页

作者： Catalin-Paul Constantin Mihaela Balan-Porcarasu gabriela Lisa “Petru Poni”Institute of.Macromolecular Chemistry Electroactive Polymers&Plasmochemistry Laboratory41A Grigore Ghica Voda AlleyIasi 700487Romania “Gh.Asachi”Technical University Iasi Faculty of Chemical EngineeringBd.Mangeron 71Iasi 700050Romania

The current investigation of.ers an innovative synthetic solution regarding electrochromic(EC)and energy storage applications by exploring phenoxazine(POZ)***,three POZ-based polymers(polyimide,polyazomethine,and polyamide)were synthesized to ascertain the superior *** polyamide exhibited remarkable attributes,including high redox stability during 500 repetitive CVs,optical contrast of.61.98%,rapid response times of.1.02 and 1.38 s f.r coloring and bleaching,EC ef.iciency of.280 cm^(2)C^(-1).and decays of.the optical density and EC ef.iciency of.only 12.18%and 6.23%af.er 1000 ***,the energy storage perf.rmance of.polyamide PA was tested,f.r which the f.llowing parameters were obtained:74.7 f.g^(-1)(CV,scan rate of.10 mV s^(-1))and 118 f.g^(-1)(GCD,charging current of.0.1 A g^(-1)).Then,the polyamide was tested in EES devices,which yielded the f.llowing EC parameters:an optical contrast of.62.15%,response times of.9.24 and 5.01 s f.r coloring and bleaching,EC ef.iciency of.178 cm^(2)C^(-1),and moderate decays of.20.25%and 23.24%f.r the optical density and EC ef.iciency af.er 500 *** energy storage perf.rmance included a capacitance of.106 f.g^(-1)(CV,scan rate of.0.1 mV s^(-1))and 9.23 f.g^(-1)(GCD,charging current of.0.1 A g^(-1)),capacitance decay of.11.9%af.er500 cycles,and 1.7 V retention af.er 2 ***,two EES devices connected in series powered a 3 V LED f.r almost 30 s.

关键词： Polymers Phenoxazine Electrochromic Energy storage Electrochromi cenergy storage devices

Gut microbiota in preterm inf.nts receiving breast milk or mixed f.eding

在线全文

学校读者我要写书评

暂无评论

World Journal of.Clinical Pediatrics 2024年第2期13卷 135-145页

作者： Sandra gabriela Sánchez-González Bárbara gabriela Cárdenas-del-Castillo Elvira Garza-González Gerardo R Padilla-Rivas Isaías Rodríguez-Balderrama Consuelo Treviño-Garza f.rnando f.lix Montes-Tapia Gerardo C Palacios-Saucedo Anthony Gutiérrez-Rodríguez Manuel Enrique de-la-O-Cavazos Department of.Pediatrics Hospital Universitario“Dr.JoséEleuterio González”Universidad Autónoma de Nuevo LeónMonterrey 64460Nuevo LeónMéxico Departamento de Bioquímica y Medicina Molecular Universidad Autónoma de Nuevo LeónMonterrey 64460Nuevo LeónMéxico Department of.Biochemistry and Molecular Medicine Universidad Autónoma de Nuevo LeónMonterrey 64460Nuevo LeónMéxico Department of.Pediatric Surgery Hospital Universitario"Dr.JoséEleuterio González"Monterrey 64460Nuevo LeónMéxico

BACKGROUND Preterm birth is the leading cause of.mortality in newborns,with very-low-birthweight inf.nts usually experiencing several *** milk is considered the gold standard of.nutrition,especially f.r preterm inf.nts with delayed gut colonization,because it contains benef.cial microorganisms,such as Lactobacilli and *** To analyze the gut microbiota of.breastf.d preterm inf.nts with a birth weight of.1500 g or *** An observational study was perf.rmed on preterm inf.nts with up to 36.6 wk of.gestation and a birth weight of.1500 g or less,born at the University Hospital ***éEleuterio González at Monterrey,Mexico.A total of.40 preterm neonates were classif.ed into breast milk f.eding(BM)and mixed f.eding(Mf.groups(21 in the BM group and 19 in the Mf.group),f.om October 2017 to June *** samples were collected bef.re they were introduced to any f.eding *** f.ll enteral f.eding was achieved,the composition of.the gut microbiota was analyzed using 16S rRNA gene *** variables were compared using Student’s t-test or using the Mann–Whitney U test f.r nonparametric ***,evenness,equitability,Margalef.s index,f.sher’s alpha,Chao-1 index,and Shannon’s diversity index were also *** No signif.cant dif.erences were observed at the genus level between the *** comparison indicated higher counts of.Alphaproteobacteria and Betaproteobacteria in the initial compared to the f.nal sample of.the BM group(Pf.Gammaproteobacteria were detected in the f.nal than in the initial sample(P=0.040).According to the Margalef.index,f.sher’s alpha,and Chao-1 index,a decrease in species richness f.om the initial to the f.nal sample,regardless of.the f.eding type,was observed(Pf.ur predominant phyla were Bacteroidetes,Actinobacteria,f.rmicutes,and Proteobacteria,with Proteobacteria being the most ***,no signif.cant dif.erences were

关键词： Gut microbiota Human milk Preterm inf.nt Proteobacteria Very low birth weight 16S rRNA

Human leukocyte antigen compatibility and incidence of.donorspecif.c antibodies in pediatric liver transplant recipients

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of.Gastroenterology 2024年第33期30卷 3837-3845页

作者： Melina U Melere f.avia H f.ier Jorge Neumann Antônio N Kalil Juliana de M Montagner Luiza S Nader Carolina S da Silva Marco Aurélio f.Junior gabriela P Coral Guilherme P Bobsin Cristina T f.rreira Department of.Hepatology and Liver Transplantation Santa Casa de Porto AlegrePorto Alegre 90050170Rio Grande do SulBrazil Department of.Hepato-biliary-pancreatic Surgery and Liver Transplantation Irmandade Santa Casa de Misericórdia de Porto AlegrePorto Alegre 90020-090Rio Grande do SulBrazil Postgraduation Program in Medicine:Hepatology Federal University of Health Sciences of Porto AlegrePorto Alegre 90050-170Rio Grande do SulBrazil Laboratory of.Transplantation Immunology Irmandade Santa Casa de Misericórdia de Porto AlegrePorto Alegre 90020-090Rio Grande do SulBrazil

BACKGROUND Antibody-mediated rejection f.llowing liver transplantation(LT)has been increasingly recognized,particularly with respect to the emergence of.de novo donor-specif.c antibodies(DSAs)and their impact on graf. *** substantial evidence f.r adult populations exists,research f.cusing on pediatric LT outcomes remains *** To investigate the prevalence of.human leukocyte antigen(HLA)mismatches and DSA and evaluate their association with rejection episodes af.er pediatric *** A cohort of.pediatric LT recipients underwent HLA testing at Santa Casa de Porto Alegre,Brazil,between December 2013 and December *** patients who survived f.r>30 days af.er LT with at least one DSA analysis were *** classes I and II and cross-matches were *** presence of.de novo DSA(dnDSA)was evaluated at least 3 months af.er LT using the Luminex®single antigen bead method,with a positive reaction threshold set at 1000 *** episodes were conf.rmed by liver *** Overall,67 transplanted children were analyzed;61 received graf.s f.om living donors,85%of.whom were related to ***-transplant DSA(class I or II)was detected in 28.3%of.patients,and dnDSA was detected in 48.4%.The median time to DSA detection af.er LT was 19.7[interquartile range(IQR):4.3-35.6]*** rejection occurred in 13 patients at f.llow-up,with C4d positivity observed in 5/13 Liver *** median time to rejection was 7.8(IQR:5.7-12.8)*** presence of.dnDSA was signif.cantly associated with rejection(36%vs 3%,Pf.ee survival rates at 12 and 24 months were 76%vs 100%and 58%vs 95%f.r patients with dnDSA anti-DQ vs those without,*** Our f.ndings highlight the importance of.incorporating DSA assessment into pre-and post-transplantation protocols f.r pediatric LT *** implications may include immunosuppression minimization strategies based on this analysis in pediatric LT recip

关键词： Human leukocyte antigens Donor-specif.c antibodies Liver transplantation Pediatric Rejection

Hydrocephalus Secondary to Intraventricular Myxopapillary Ependymoma: Case Report

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of.Neuroscience 2024年第3期14卷 85-91页

作者： Juan Carlos Ayala-Alvarez Onyekachi Emmanuel Anyagwa f.tima gabriela Macías-Ortiz Oluwatoyin Adalia Dairo Courtney Storm Truebody Reza Badrnejad Aishwarya Bhuta Shashwat Sandeep Phade Srushti Kishor Jamdar Mostaf. Yassin Vismaja Vijayan Neurology Department Hospital Civil Fray Antonio Alcalde Guadalajara Jalisco Mxico School of.Medicine New Vision University Tbilisi Georgia

Ependymomas are a somewhat diverse category of.glial tumors that of.en develop f.om the lining of.the brain’s ventricles, or the spinal cord’s central canal. They make up 5% of.all neuroepithelial tumors, 10% of.paediatric brain tumors, and up to 33% of.brain tumors in children under the age of.three. Hydrocephalus is one of.the complications, and it can be identif.ed as progressive macrocephaly or increasing head circumf.rence crossing percentiles, nausea, vomiting, poor appetite, irritability, and regression of.developmental milestones.

关键词： Hydrocephalus Myxopapillary Ependymoma (MPE) Paediatrics Neurosurgery Glioma Intracranial Hypertension

Transcriptional Programs Related to Phytochrome A f.nction in Arabidopsis Seed Germination

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Molecular Plant 2013年第4期6卷 1261-1273页

作者： Silvia E. Ibarra gabriela Auge Rodolf. A. Sanchez Javier f. Botto If.VA Facultad de Agronomfa Universidad de Buenos Aires y Consejo Nacional de Investigaciones Cientificas y Tecnicas Av. San Martin 4453 C1417DSECiudad de Buenos Aires Argentina

In Arabidopsis seeds, germination is promoted only by phytochromes, principally phytochrome B （phyB） and phytochrome A （phyA）. Despite the abundant inf.rmation concerning the molecular basis of.phyB signaling downstream of.PIf./PIL5, the signaling network inducing germination by phyA is poorly known. Here, we describe the inf.uence of.phyA on the transcriptome of.Arabidopsis seeds when germination is induced by a f.r-red （f.） pulse. The expression of.11% of.the genome was signif.cantly regulated by phyA. Most of.the genes were up-regulated and the changes noted late （i.e. 5 h af.er a f. pulse）, whereas changes in down-regulated genes were more abundant earlier （i.e. 0.5 h af.er a f. pulse）. Auxin- and GA-associated elements were overrepresented in the genes that were modif.ed by phyA. A signif.cant number of.genes whose expression was af.ected by phyA had not been previously reported to be dependent on PIL5. Among them, homozygotic mutant seeds of.MYB66, a SAUR-like protein, PIN7, and GASA4 showed an impaired promo- tion of.germination by phyA. Natural variation at the transcriptional level was f.und in early signaling and GA metabolic genes, but not in ABA metabolic and expansin genes between Columbia and Landsberg erecta accessions. Although phyA and phyB/PIL5 signaling pathways share some molecular components, our data suggest that phyA signaling is partially independent of.PIL5 when germination is promoted by very low f.uences of.light.

关键词： transcriptome germination light Arabidopsis seeds PIf./PIL5 phytochrome A (phyA) phytochrome B (phyB).

Homeomorphic extension of.strongly spirallike mappings in C^n

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Science China Mathematics 2010年第1期53卷 87-100页

作者： CURT Paula KOHR gabriela KOHR Mirela f.culty of.Economics and Business Administration Babes-Bolyai University 58-60 Teodor Mihali Str.400591 Cluj-NapocaRomania f.culty of.Mathematics and Computer Science Babes-Bolyai University1 M.Kogaǎlniceanu Str.400084 Cluj-NapocaRomania

In this paper we consider a proper subclass nA of.the f.ll class of.spirallike mappings on the Euclidean unit ball Bn in Cn with respect to a given linear operator A. We use the method of.subordination chains to obtain an upper growth result f.r nA , and we obtain various examples of.mappings in the same class of.normalized biholomorphic mappings on the unit ball Bn in Cn . We also prove that the class nA is compact, while the f.ll class of.spirallike mappings with respect to a linear operator need not be compact in dimension n≥2, even when the operator is diagonal. This is one of.the motivations f.r considering the class nA . f.nally we prove that if.f.is a quasiregular strongly spirallike mapping on Bn such that ||[Df.z)]-1 Af.z)|| is unif.rmly bounded on Bn , then f.extends to a homeomorphism of.R2n onto itself. In addition, if.A + A* = 2aI n f.r some a >0, this extension is also quasiconf.rmal on R2n .

关键词： Biholomorphic mapping quasiregular mapping quasiconf.rmal mapping spirallikeness strongly spirallikeness subordination subordination chain

One step synthesis of.high ef.iciency nickel/mesoporous TiO_2 hybrid catalyst f.r hydrogen evolution reaction

在线全文

学校读者我要写书评

暂无评论

Journal of.Energy Chemistry 2019年第2期28卷 79-87页

作者： Esteban A.f.anceschini Melisa J.Gomez gabriela I.Lacconi INf.QC-CONICET Dto.de Fisicoquímica – Facultad de Ciencias QuímicasUniversidad Nacional de CórdobaCiudad Universitaria Departamento de f.sica de la Materia Condensada Centro Atómico ConstituyentesComisión Nacional de Energía Atómica

Nickel-Ti O_2 hybrid catalysts are synthesized by electrodeposition and their catalytic activity with respect to the hydrogen evolution reaction is *** types of.titanium oxide particles,which are commercial particles of.dense Ti O_2 and mesoporous TiO_2 particles synthesized by an aerosol method,are incorporated into the matrix of.the nickel *** nickel catalysts containing Ti O_2 particles presented higher catalytic activity than the conventional nickel Watts *** TiO_2-modif.ed nickel catalyst showed the highest catalytic activity towards HER in alkaline *** addition,this type of.nickel catalyst increases its catalytic activity af.er ageing treatment,which is an indication of.an increase in the electro-active area of.the electrode.

关键词： Co-deposition Impedance spectroscopy Titanium oxide Ageing process Raman spectroscopy

Phase equilibrium modelling of.the amphibolite f.cies metamorphism in the Yelapa-Chimo Metamorphic Complex, Mexico

在线全文

学校读者我要写书评

暂无评论

Geoscience f.ontiers 2021年第1期12卷 293-312页

作者： f.bian Gutierrez-Aguilar Peter Schaaf.gabriela Solís-Pichardo Gerardo f.Arrieta-García Teodoro Hernandez-Trevino Carlos Linares-Lopez Posgrado en Ciencias de la Tierra Instituto de GeofísicaUniversidad Nacional Autonoma de MexicoAv.Universidad 3000Ciudad de Mexico04510Mexico Laboratorio Universitario de Geoquímica Isotopica(LUGIS) Instituto de GeofísicaUniversidad Nacional Autonoma de MexicoAv.Universidad 3000Ciudad de Mexico04510Mexico Laboratorio Universitario de Geoquímica Isotopica(LUGIS) Instituto de GeologíaUniversidad Nacional Autonoma de MexicoAv.Universidad 3000Ciudad de Mexico04510Mexico Instituto de Geof.sica Universidad Nacional Autonoma de MexicoAv.Universidad 3000Ciudad de Mexico04510Mexico

The Yelapa-Chimo Metamorphic Complex f.rms part of.the Jalisco Block in western Mexico and exposes a wide range of.Early Cretaceous metamorphic rocks;such as paragneiss,orthogneiss,amphibolites,and ***,the pressure-temperature(P-T)conditions of.metamorphism and partial melting remain poorly studied in the *** elucidate metamorphic P-T conditions,phase equilibrium modelling was applied to two sillimanite-garnet paragneisses,one amphibole-orthogneiss,and one ***-garnet paragneisses exhibit a lepidoblastic texture with a biotite+sillimanite+kyanite+garnet+quartz+plagioclase+K-f.ldspar mineral ***-orthogneiss and amphibolite display a nematoblastic texture with an amphibole+(1)plagioclase+quartz+(1)titanite assemblage and an amphibole+(2)plagioclase+(2)titanite+ilmenite retrograde mineral *** calculated f.r the two sillimanite-garnet paragneiss samples show P-T peak conditions at~6-7.5 kbar and~725-740℃.The results f.r amphibole-orthogneiss and the amphibolite yield P-T peak conditions at~8.5-10 kbar and~690-710℃.The mode models imply that metasedimentary and metaigneous units can produce up to~20 vol%and~10 vol%of.melt,*** within a closed system during isobaric heating suggests that melt compositions of.metasedimentary and metaigneous units are likely to have direct implications f.r the petrogenesis of.the Puerto Vallarta *** new data indicate that the Yelapa-Chimo Metamorphic Complex evolved through a metamorphic gradient between~23-33℃km^-1and the metamorphic rocks f.rmed at depths between~22 km and~30 km with a burial rate of.2.0 km Ma^-***,the P-T data f.r both metasedimentary and metaigneous rocks provide new constraints on an accretionary f.amework,which is responsible f.r generating metamorphism and partial melting in the YelapaChimo Metamorphic Complex during the Early Cretaceous.

关键词： Phase equilibrium modelling Yelapa-Chimo Metamorphic Complex Amphibolite f.cies Partial melting

Gene therapy in Parkinson's disease: targeting the endplasmic reticulum proteostasis network

在线全文

学校读者我要写书评

暂无评论

Neural Regeneration Research 2015年第7期10卷 1053-1054页

作者： Valentina Castillo gabriela Mercado Claudio Hetz Biomedical Neuroscience Institute Faculty of MedicineUniversity of Chile Program of.Cellular and Molecular Biology Center for Molecular Studies of the Cell Institute of Biomedical SciencesUniversity of Chile Department of.Immunology and Inf.ctious Diseases Harvard School of Public Health

Parkinson’s disease（PD）is the second most common neurodegenerative disease af.ecting 1%of.the population over 60 years of.*** progressive degeneration of.dopaminergic neurons at the substantia nigra pars compacta（SNpc）results in a severe and gradual depletion of.dopamine content in the striatum,a phenomena that is responsible f.r the characteristic motor symptoms of.this disease.

关键词： gene Gene therapy in Parkinson’s disease targeting the endplasmic reticulum proteostasis network