检索结果-南通市图书馆

植物系统发生海报——以演化视角介绍植物多样性的科教资料项目

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

生物多样性 2025年

作者：蒋陈焜郁文彬饶广远黎怀成 Julien b.bachelier Hartmut H.Hilger Theodor c.H.cole 北京大学生命科学学院蛋白质与植物基因研究国家重点实验室北京大学前沿交叉学科研究院北京大学-清华大学生命科学联合中心中国科学院西双版纳热带植物园综合保护中心/云南省热带雨林与亚洲象保护重点实验室 Dahlem centre of Plant Sciences (DcPS)， Institute of biology， Structural and Functional Plant Diversity， Freie Universit?t berlin

中国的植物多样性保护行动虽然提升了公众对多样性的认识，但这些努力往往未能深入到理解植物多样性演化及其保护的深层意义。从演化的视角进行植物多样性宣传教育，有利于促进对多样性的综合理解，增进对多样性保护的认可。然而， ... 详细信息

中国的植物多样性保护行动虽然提升了公众对多样性的认识，但这些努力往往未能深入到理解植物多样性演化及其保护的深层意义。从演化的视角进行植物多样性宣传教育，有利于促进对多样性的综合理解，增进对多样性保护的认可。然而，现有资料多集中于物种的识别、鉴定与分类，缺乏从生物演化角度对植物多样性进行系统性介绍的内容。本文介绍了一个具有全球影响力的科教资料案例——由美裔德国植物学家Theodor c. H. cole发起的植物系统发生海报(Plant Phylogeny Posters)项目。该项目通过整合最新的系统与演化植物学研究成果，以系统发生为线索介绍植物多样性及其亲缘关系，旨在利用系统发生树所蕴含的丰富演化思想内涵，启发读者理解植物多样性与演化。海报以系统发生树结合植物类群的形态、地理分布、物种数量等数据信息，直观展示了多个分类等级的重要类群的演化历史。在数十所大学和科研机构的45位研究人员的努力下， 70张系统发生海报已被翻译成中文，并向所有人免费开放获取。这一科教项目有望为增进公众深入理解植物多样性及其保护行动提供宝贵的资源和帮助。

关键词：植物多样性演化系统发生科教资料

Ultra‑Transparent and Multifunctional IZVO Mesh Electrodes for Next‑Generation Flexible Optoelectronics

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Nano-Micro Letters 2025年第1期17卷 293-309页

作者： Kiran A.Nirmal Tukaram D.Dongale Atul c.Khot chenjie Yao Nahyun Kim Tae Geun Kim School of Electrical Engineering Korea UniversityAnam‑ro 145Seongbuk‑guSeoulRepublic of Korea computational Electronics and Nanoscience Research Laboratory School of Nanoscience and BiotechnologyShivaji UniversityKolhapur 416004India

Mechanically durable transparent electrodes are essential for achieving long-term stability in flexible optoelectronic ***,they are crucial for applications in the fields of energy,display,healthcare,and soft *** meshes represent a promising alternative to traditional,brittle,metal oxide conductors due to their high electrical conductivity,optical transparency,and enhanced mechanical *** this paper,we present a simple method for fabricating an ultra-transparent conducting metal oxide mesh electrode using selfcracking-assisted *** this method,we produced an electrode with ultra-transparency(97.39%),high conductance(Rs=21.24Ωsq^(−1)),elevated work function(5.16 eV),and good mechanical *** also evaluated the effectiveness of the fabricated electrodes by integrating them into organic photovoltaics,organic light-emitting diodes,and flexible transparent memristor devices for neuromorphic computing,resulting in exceptional device *** addition,the unique porous structure of the vanadium-doped indium zinc oxide mesh electrodes provided excellent flexibility,rendering them a promising option for application in flexible optoelectronics.

关键词： Self-cracking template Vanadium-doped indium zinc oxide mesh Organic solar cells Organic light-emitting diodes Flexible transparent memory

维普期刊数据库

congenital membranous occlusion of the suprahepatic inferior vena cava in a pediatric liver transplant

在线全文

学校读者我要写书评

暂无评论

Hepatobiliary Surgery and Nutrition 2018年第1期7卷 29-31页

作者： ashley Suah J.michael Millis Adam S.bodzin Department of Surgery Section of Abdominal Organ TransplantationUniversity of ChicagoChicagoILUSA

congenital membranous occlusion of the inferior vena cava(IVc)in pediatric liver recipients may present with outflow occlusion and if unrecognized,result in graft *** evaluation of outflow obstruction in the setting of unexplained inflow compromise is *** report a case of successful IVc reconstruction in a patient with recurrent hepatic artery thrombosis(HAT).A 2-year-old child with history of two liver transplantations developed fevers,ascites,and abdominal tenderness one month after her second liver *** duplex revealed decreased flow in the hepatic artery and IVc venogram revealed patent hepatic veins with occlusion of the suprahepatic *** performed reconstruction of her suprahepatic IVc to intrapericardial IVc using an end-to-side technique after complete mobilization of the *** was uneventful and the patient has been doing well for the last 5 years.

关键词： IVc occlusion liver transplant pediatric

Machine learning empowers efficient design of ternary organic solar cells with PM6 donor

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 2025年第1期100卷 337-347页

作者： Kiran A.Nirmal Tukaram D.Dongale Santosh S.Sutar Atul c.Khot Tae Geun Kim School of Electrical Engineering Korea University computational Electronics and Nanoscience Research Laboratory School of Nanoscience and Biotechnology Shivaji University Yashwantrao chavan School of Rural Development Shivaji University

Organic solar cells(OScs) hold great potential as a photovoltaic technology for practical ***, the traditional experimental trial-and-error method for designing and engineering OScs can be complex, expensive, and time-consuming. Machine learning(ML) techniques enable the proficient extraction of information from datasets, allowing the development of realistic models that are capable of predicting the efficacy of materials with commendable accuracy. The PM6 donor has great potential for high-performance OScs. However, it is crucial for the rational design of a ternary blend to accurately forecast the power conversion efficiency(PcE) of ternary OScs(TOScs) based on a PM6 ***, we collected the device parameters of PM6-based TOScs and evaluated the feature importance of their molecule descriptors to develop predictive models. In this study, we used five different ML algorithms for analysis and prediction. For the analysis, the classification and regression tree provided different rules, heuristics, and patterns from the heterogeneous dataset. The random forest algorithm outperforms other prediction ML algorithms in predicting the output performance of PM6-based TOScs. Finally, we validated the ML outcomes by fabricating PM6-based TOScs. Our study presents a rapid strategy for assessing a high PcE while elucidating the substantial influence of diverse descriptors.

关键词： Random forests

Effect of mate size on maternal reproductive effort in the convict cichlid Amatitlania siquia

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

current Zoology 2012年第1期58卷 66-72页

作者： Robart, ashley R. Department of Ecology and Evolutionary biology University of California Santa Cruz CA 95064 USA

The differential allocation hypothesis predicts individuals will increase their reproductive investment when mated to a high quality partner. In many species of fish with biparental care females prefer large males due to the males＇ greater ability to raise more offspring to independence. I examined the relationship between mate quality, parental care and number of offspring in a natural population of convict cichlids Amatitlania siquia. The frequency of frontal displays by females was positively correlated with male standard length. Additionally, as males increased in length relative to their mate, females increased the frequency of chases towards predators, while males decreased the number of displays towards brood predators. This trade-off in parental effort within a pair due to mate quality is a key prediction of differential allocation. The number of offspring was correlated with male, but not female, standard length. These results support the differential allocation hypothesis in that females offered more parental care to offspring of a larger male, while their mates decreased the amount of care they provided. AdditionaUy, females benefited in terms of number of offspring by pairing with higher quality mates. Increased female investment may provide an incentive to ensure male care and maintain pair bonding, which could lead to greater reproductive success through increased offspring sur- vival [current Zoology 58 （1）： 66-72, 2012].

关键词： Differential allocation biparental care Maternal effort cichlid

The combination of induced pluripotent stem cells and bioscaffolds holds promise for spinal cord regeneration

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Neural Regeneration Research 2018年第10期13卷 1677-1684页

作者： ashley Debrot Li Yao Department of biological Sciences Wichita State University

Spinal cord injuries（ScIs） are debilitating conditions for which no effective treatment currently exists. The damage of neural tissue causes disruption of neural tracts and neuron loss in the spinal cord. Stem cell replacement offers a solution for ScI treatment by providing a source of therapeutic cells for neural function restoration. Induced pluripotent stem cells（i PScs） have been investigated as a potential type of stem cell for such therapies. Transplantation of i PScs has been shown to be effective in restoring function after ScIs in animal models while they circumvent ethical and immunological concerns produced by other stem cell types. Another approach for the treatment of ScI involves the graft of a bioscaffold at the site of injury to create a microenvironment that enhances cellular viability and guides the growing axons. Studies suggest that a combination of these two treatment methods could have a synergistic effect on functional recovery post-neural injury. While much progress has been made, more research is needed before clinical trials are possible. This review highlights recent advancements using i PScs and bioscaffolds for treatment of ScI.

关键词： induced pluripotent stem cells bioscaffolds spinal cord injury regeneration transplantation differentiation functional recovery neuron replacement guidance microenvironment

维普期刊数据库

Hospitalized prevalence and 5-year mortality for IbD:Record linkage study

在线全文

学校读者我要写书评

暂无评论

World Journal of Gastroenterology 2010年第4期16卷 431-438页

作者： Lori A button Stephen E Roberts michael J Goldacre ashley Akbari Sarah E Rodgers John G Williams School of Medicine Swansea UniversitySwansea SA2 8PPUnited Kingdom Unit of Health-care Epidemiology University of OxfordOxford OX2 7LFUnited Kingdom

AIM:To establish the hospitalized prevalence of severe crohn's disease(cD) and ulcerative colitis(Uc) in Wales from 1999 to 2007;and to investigate long-term mortality after hospitalization and associations with social deprivation and other socio-demographic ***:Record linkage of administrative inpatient and mortality data for 1467 and 1482 people hospitalised as emergencies for ≥ 3d for cD and Uc,*** main outcome measures were hospitalized prevalence,mortality rates and standardized mortality ratios for up to 5 years follow-up after ***:Hospitalized prevalence was 50.1 per 100 000 population for cD and 50.6 for *** hospitalized prevalence of cD was significantly higher(P but the prevalence of Uc was similar in males(51.0) and females(50.1),and increased continuously with *** hospital-ized prevalence of cD was slightly higher in the most deprived areas,but there was no association between social deprivation and hospitalized prevalence of *** was 6.8% and 14.6% after 1 and 5 years follow-up for cD,and 9.2% and 20.8% after 1 and 5 years for *** both cD and Uc,there was little discernible association between mortality and social deprivation,distance from hospital,urban/rural residence and ***:cD and Uc have distinct demographic *** higher prevalence of hospitalized cD in more deprived areas may reflect higher prevalence and higher hospital dependency.

关键词： crohn’s disease Ulcerative colitis Prevalence Mortality Record linkage

Does foraging mode affect metabolic responses to feeding？ A study of pygopodid lizards

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

current Zoology 2013年第5期59卷 618-625页

作者： michael WALL michael b. THOMPSON Richard SHINE School of biological Sciences A08 University of Sydney NSW 2006 Australia current address: 4940 Anza St. #4 San Francisco CA 94121 USA

Foraging mode （ambush vs. active） profoundly affects many aspects of organismal biology, including metabolic rates and their relationship with food intake. Previous studies on snakes suggest that ambushers tend to have lower standard metabolic rates （SMR） and higher energetic costs of digestion and assimilation of prey （specific dynamic action, or SDA） than do active foragers. However, phylogenetic considerations may be at least partly responsible for such patterns, as foraging mode is strongly conserved evolutionarily and most SDA studies have focused on species from only two lineages of ambush foragers （pythonid and viperid snakes） and one lineage of active foragers （colubrid snakes）. We sought to deconfound the effects of phylogeny and foraging mode, investigating SMR and SDA in two closely related pygopodid lizards, the common scaly-foot Pygopus lepidopo- dus （active forager） and burton＇s legless lizard Lialis burtonis （ambush forager）. consistent with the pattern seen in snakes, L. burtonis exhibits a significantly lower SMR and a higher SDA than does P lepidopodus. The magnitude of SDA in L. burtonis is comparable to that of some pythons and vipers, providing yet more evidence for the remarkable convergence between this species and ambush-foraging snakes [current Zoology 59 （5）： 618-625, 2013].

关键词： Ecology Metabolic rates Reptile Specific dynamic action

Evaluating the suitability of essential genes as targets for antibiotic screening assays using proteomics

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Protein & cell 2012年第1期3卷 5-7页

作者： ashley chessher School of biology Newcastle UniversityNewcastle upon TyneNE17RUUK

Regarded as one of the most fundamental discoveries in modern medicine,antibiotics have revolutionized the treatment of bacterial disease and provided the prerequisite for the development of the modern pharmaceutical *** to the extensive use of antibiotics,bacteria have evolved by developing an array of resistance mechanisms(Fischbach and Walsh,2009;Van Hoek et al.,2011).Pathogens displaying resistance include methicillin-resistant Staphylococcus aureus(MRSA),vancomycin-resistant enterococci(VRE)and multidrug-resistant(XDR)Mycobacterium tuberculosis(Alekshun and Levy,2007).

关键词： al. tuberculosis suitability

维普期刊数据库