检索结果-南通市图书馆

World Journal of Pediatrics 2024年第6期20卷 633-634页

作者： jon Izquierdo-Pujol sara Moron-Lopez IrsiCaixa and Institute for Health science Research Germans Trias i Pujol(IGTP) Can Ruti CampusBadalonaSpain Biomedicine doctoral programme Faculty of BiologyUniversity of BarcelonaBarcelonaSpain CIBERINFEC MadridSpain

The coronavirus disease-19(COVID-19)outbreak,caused by the severe acute respiratory syndrome coronavirus 2(sARs-CoV-2),was declared a global pandemic in March *** has affected over 700 million people worldwide and resulted in almost 7 million deaths,equating to a 1%mortality *** present,the majority of COVID-19 cases are either asymptomatic or mild,typically resolving within two ***,between 1%and 10%of COVID-19 survivors do not fully recover and experience a post-viral syndrome referred to as"long COVID","post-acute COVID-19 syndrome"(PAsC),or"post-COVID condition"(PCC).This post-viral syndrome affects both adult and pediatric ***,most of the studies published to date evaluate the adult population,leaving a gap in our understanding of its impact on children and adolescents.

关键词： acute mortality respiratory

Enhancement of the CO_(2)adsorption and hydrogenation to CH_(4)capacity of Ru–Na–Ca/γ–Al_(2)O_(3)dual function material by controlling the Ru calcination atmosphere

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 Environmental sciences 2024年第6期140卷 292-305页

作者： Alejandro Bermejo-López Beñat Pereda-Ayo jon A.Onrubia-Calvo JoséA.González-Marcos Juan R.González-Velasco Department of Chemical Engineering Faculty of Science and TechnologyUniversidad del País Vasco UPV/EHUBarrio Sarrienas/n48940 LeioaBizkaiaSpain

Integrated CO_(2)capture and utilization(ICCU)technology requires dual functional materials(DFMs)to carry out the process in a single reaction *** influence of the calcination atmosphere on efficiency of 4%Ru-8%Na_(2)CO_(3)-8%CaO/γ-Al_(2)O_(3)DFM is *** adsorbent precursors are first co-impregnated onto alumina and calcined in ***,Ru precursor is impregnated and four aliquotes are subjected to different calcination protocols:static air in muffle or under different mixtures(10%H_(2)/N_(2),50%H_(2)/N_(2)and N_(2))*** are characterized by XRD,N_(2)adsorption-desorption,H_(2)chemisorption,TEM,XPs,H_(2)-TPD,H_(2)-TPR,CO_(2)-TPD and *** catalytic behavior is evaluated,in cycles of CO_(2)adsorption and hydrogenation to CH_(4),and temporal evolution of reactants and products concentrations is *** calcination atmosphere influences the physicochemical properties and,ultimately,activity of *** data and catalytic performance discover the acccomodation of Ru nanoparticles disposition and basic sites is mostly influencing the catalytic *** calcined under N_(2)flow(RuNaCa-N_(2))shows the highest CH_(4)production(449μmol/g at 370℃),because a well-controlled decomposition of precursors which favors the better accomodation of adsorbent and Ru phases,maximizing the specific surface area,the Ru-basic sites interface and the participation of different basic sites in the CO_(2)methanation ***,the calcination in a N_(2)flow is revealed as the optimal calcination protocol to achieve highly efficient DFM for integrated CO_(2)adsorption and hydrogenation applications.

关键词： CO_(2)methanation Integrated CO_(2)capture and utilization(ICCU) Dual functional material(DFM) Ru calcination atmosphere

CHARTING THE ROAD AHEAD

在线全文

学校读者我要写书评

暂无评论

Beijing Review 2024年第31期67卷 18-19页

作者： jon Taylor University of Texas at san Antonio

The Communist Party of China(CPC)recently concluded the long-anticipated Third Plenary session of the 20th CPC Central *** meeting brought together the Party's top leadership to discuss and articulate China's policy g... 详细信息

关键词： policy goals strategic

Are gender inclusiveness and rural transformation interlinked?The case of Bangladesh

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 Integrative Agriculture 2024年第6期23卷 2112-2126页

作者： Maria Fay Rola-Rubzen Mohammad Jahangir Alam jon Marx sarmiento Ismat Ara Begum Al Amin Al Abbasi subrata saha UWA school of Agriculture and Environment The University of Western AustraliaPerth 6009Australia Department of Agribusiness and Marketing Bangladesh Agricultural UniversityMymensingh-2202Bangladesh Department of Agricultural Economics Bangladesh Agricultural UniversityMymensingh-2202Bangladesh

Gender inclusiveness is important in the rural transformation process of Bangladesh as rural women play key roles in both agricultural and non-agricultural *** inclusiveness also leads to gender *** empirically evaluate relationships between rural transformation and gender inclusiveness in *** consider three rural transformation indicators:high-value commodities’share in agricultural output values,non-farm employment’s share in rural labor employment,and non-agricultural GDP’s share in total *** capturing gender inclusiveness include the per capita rural income of males and females,ratio of investments into gender programs,female access to education,access to healthcare,employment participation,land ownership,and asset *** test the effect of the difference in per capita rural income of males and females and the ratio of their incomes and check for the robustness of the gender variables across different model *** 128 district-level observations from 32 districts of Bangladesh across four time periods(2000,2005,2010 and 2016),we use both ordinary least squares and fixed effects panel regression *** find that female land and asset ownership and access to education and healthcare are robust determinants of various stages of rural ***,our results suggest that improving women’s ownership of land and assets and investing in women’s education and healthcare will likely contribute to a more inclusive rural transformation.

关键词： rural transformation Bangladesh gender inclusiveness investments on women

High-repetition-rate source of nanosecond duration kA-current pulses driven by relativistic laser pulses

在线全文

学校读者我要写书评

暂无评论

High Power Laser science and Engineering 2024年第3期12卷 106-115页

作者： Michael Ehret Jakub Cikhardt Philip Wykeham Bradford Iuliana-Mariana Vladisavlevici Tomas Burian Diego de Luis Jose Luis Henares Rubén Hernández Martín jon Imanol Apiñaniz Roberto Lera JoséAntonio Pérez-Hernández João Jorge santos Giancarlo Gatti Centro de Láseres Pulsados(CLPU) VillamayorSpain Czech Technical University in Prague Faculty of Electrical EngineeringPragueCzech Republic Univ.Bordeaux-CNRs-CEA Centre Lasers Intenses et Applications(CELIA)UMR 5107TalenceFrance Department of Radiation and Chemical Physics FZU-Institute of Physics of the Czech Academy of SciencesPragueCzech Republic

We report the first high-repetition-rate generation and simultaneous characterization of nanosecond-scale return currents of kA-magnitude issued by the polarization of a target irradiated with a PW-class high-repetition-rate titanium:sapphire laser system at relativistic *** present experimental results obtained with the VEGA-3 laser at intensities from5×10^(18)to 1.3×10^(20)W cm^(-2).A non-invasive inductive return-current monitor is adopted to measure the derivative of return currents of the order of kA ns-1and analysis methodology is developed to derive return *** compare the current for copper,aluminium and Kapton targets at different laser *** data show the stable production of current peaks and clear prospects for the tailoring of the pulse shape,which is promising for future applications in highenergy-density science,for example,electromagnetic interference stress tests,high-voltage pulse response measurements and charged particle beam *** compare the target discharge of the order of hundreds of nC with theoretical predictions and a good agreement is found.

关键词： current pulses electromagnetic pulse application high-power laser relativistic laser plasma

sediment fingerprinting in fluvial systems:review of tracers,sediment sources and mixing models

在线全文

学校读者我要写书评

暂无评论

International Journal of sediment Research 2013年第4期28卷 560-578页

作者： Arman HADDADCHI Darren s.RYDER Olivier EVRARD jon OLLEY Australian Rivers Institute Griffith University school of Environmental and Rural sciences University of New England Laboratoire des sciences du Climat et de l'Environnement(LsCE/IPsL)

suspended sediments in fluvial systems originate from a myriad of diffuse and point sources,with the relative contribution from each source varying over time and *** process of sediment fingerprinting focuses on developing methods that enable discrete sediment sources to be identified from a composite sample of suspended *** review identifies existing methodological steps for sediment fingerprinting including fluvial and source sampling,and critically compares biogeochcmical and physical tracers used in fingerprinting *** of applying different mixing models to the same source data are explored using data from 41 catchments across Europe,Africa,Australia,Asia,and North and south *** application of seven commonly used mixing models to two case studies from the Us(North Fork Broad River watershed) and France(BIcone watershed) with local and global(genetic algorithm) optimization methods identified all outputs remained in the acceptable range of error defined by the original *** propose future sediment fingerprinting studies use models that combine the best explanatory parameters provided by the modified Collins(using correction factors) and Hughes(relying on iterations involving all data,and not only their mean values) models with optimization using genetic algorithms to best predict the relative contribution of sediment sources to fluvial systems.

关键词： watershed fluvial sampling source tracing modeling local optimization genetic algorithm

Comparison of ART outcomes in men with altered mRNA protamine 1/protamine 2 ratio undergoing intracytoplasmic sperm injection with ejaculated and testicular spermatozoa

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Asian Journal of Andrology 2020年第6期22卷 623-628页

作者： jonas sarasa Maria Enciso Laura Garcia Andrea Leza Klaus steger jon Aizpurua iGLs Alicante 03540SpainMolecular AndrologyJustus-Liebig-UDiversity GiessenGiessen 35385Germany IVF-spain Alicante 03540SpainMolecular AndrologyJustus-Liebig-UDiversity GiessenGiessen 35385Germany Department of Urology Pediatric Urology and AndrologyMolecular AndrologyJustus-Liebig-UDiversity GiessenGiessen 35385Germany

Assisted reproductive technologies invoIving the use of spermatozoa and eggs for in vitro fertilization(IVF)have come as the solution for many infertile couples to become ***,in some cases,the use of ejaculated spermatozoa delivers poor IVF *** studies have suggested the use of testicular spermatozoa in severe male in fertility cases,but no guideli nes regarding their utilization are currently *** the present study,we found the mRNA protamine 1/protamine 2(P1/P2)ratio to be a valuable biomarker of poor sperm function that could be used as a diagnostic key for the identification of cases that would benefit from the use of testicular spermatozoa.A total of 23 couples undergoing egg donation cycles with at least one previous cycle failure were *** couples underwent two consecutive intracytoplasmic sperm injection(ICsI)cycles with either ejaculated or testicular spermatozoa(TEsA).The sperm mRNA P1/P2 ratio,fertilization rate,blastocyst rate,and pregnancy and live birth rate were *** showed improved ICsI and clinical outcomes in cycles with testicular spermatozoa in men with altered mRNA P1/P2 *** cycles presented significantly higher rates of fertilization(mean±standard deviation:76.1%±15.1%vs 65.5%±18.8%),blastocyst formation(55.0%±20.3%vs 30.8%±23.8%),and good morphological quality blastocyst(28.9%±22.9%vs 13.5%±17.9%)and also improvements on pregnancy(60.9%vs 0%)and healthy birth rates(56.5%vs 0%)than EJACULATE *** results described here suggest that in patients with previous IVF/ICsI failures and aberrant mRNA protamine ratios,the use of testicular spermatozoa may be a good alternative to improve clinical outcomes.

关键词： DNA damage male infertility mRNA protamine ratio sperm chromatin testicular spermatozoa

Epidemiology of perforated peptic ulcer:Age-and gender-adjusted analysis of incidence and mortality

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 2013年第3期19卷 347-354页

作者： Kenneth Thorsen jon Arne sreide Jan Terje Kvaly Tom Glomsaker Kjetil sreide Department of surgery Stavanger University HospitalN-4068 StavangerNorway Department of surgical science University of Bergen5020 BergenNorway Department of Mathematics and Natural science University of Stavanger4036 StavangerNorway

AIM:To investigate the epidemiological trends in inci-dence and mortality of perforated peptic ulcer(PPU)in a well-defined Norwegian population. METHODs:A retrospective,population-based,single-center,consecutive cohort study of all patients diag-nosed with benign perforated peptic *** were both gastric and duodenal ulcer patients admitted to stavanger University Hospital between January 2001 and December *** with a malignant neoplasia diagnosis,verified by histology after biopsy or resection,were *** were identified from the hospitals administrative electronic database using pertinent ICD-9 and ICD-10 codes(K25.1,K25.2,K25.5, K25.6,K26.1,K26.2,K26.5,K26.6).Additional searches using appropriate codes for relevant laparoscopic and open surgical procedures(e.g.,JDA 60,JDA 61,JDH 70 and JDH 71)were performed to enable a complete identification of all *** demographics,presentation patterns and clinical data were retrieved from hospital records and surgical *** and adjusted incidence and mortality rates were estimated by using national population demographics data. REsULTs:In the study period,a total of 172 patients with PPU were *** adjusted incidence rate for the overall 10-year period was 6.5 per 100 000 per year(95%CI:5.6-7.6)and the adjusted mortality rate for the overall 10-year period was 1.1 per 100 000 per year(95%CI:0.7-1.6).A non-significant decline in ad-justed incidence rate from 9.7 to 5.6 occurred during the *** standardized mortality ratio for the whole study period was 5.7(95%CI:3.9-8.2),while the total 30-d mortality was 16.3%.No difference in in-cidence or mortality was found between ***,for patients≥60 years,the incidence increased over 10-fold,and mortality more than 50-fold,compared to younger *** admission rates outside office hours were high with almost two out of three(63%) admissions seen at evening/night time shifts and/or during *** observed season

关键词： Perforated peptic ulcer Epidemiology Incidence Mortality seasonal variation

New Evidence for a Cretaceous Age for a Mesozoic Nonmarine Bivalve Assemblage from Paekto-dong, sinuiju City, The Democratic People’s Republic of Korea

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Acta Geologica sinica(English Edition) 2019年第6期93卷 1607-1613页

作者： CholGuk WON Kwangsik sO suHyang jon Department of Paleontology Faculty of Geology Kim Il Sung University

The sinuiju Formation in Paekto-dong,sinuiju City in the Democratic People's Republic of Korea has yielded Mesozoic nonmarine bivalve fossils,which is the first occurrence of such in the *** on these fossil specimens,a new Cretaceous bivalve assemblage,the Arguniella yanshanensis-sphaerium anderssoni Assemblage is *** assemblage includes Arguniella yanshanensis,*** and sphaerium anderssoni and can be compared with the Jehol *** age of the sinuiju Formation is also clarified and on the basis of the bivalves and the presence of a Eosestheria–Ephemeropsis–Lycoptera(E–E–L)assemblage,the formation is not Upper Jurassic,but Lower Cretaceous in age.

关键词： biostratigraphy nonmarine bivalves sinuiju Formation Early Cretaceous DPRK