检索结果-南通市图书馆

expression pattern analysis of odorant-binding proteins in the pea aphid Acyrthosiphon pisum

Insect Science 2015年第2期22卷 220-234页

作者： Filomena De Biasio Lea Riviello daniele Bruno Annalisa Grimaldi Terenzio Congiu Yu Feng Sun Patrizia Falabella Dipartimento di Scienze Universit& della Basilicata via dell' Ateneo Lucano 10 85100 Potenza Dipartimento di Biotecnologie e Scienze della Vita Universita dell'lnsubria via J. H. Dunant 3 21100 Dipartimento di Scienze Chirurgiche e Morfologiche Universita dell'Insubriavia Monte Generoso 321100Varese Italy Chinese Academy of Agricultural Sciences institute of Plant Protection Beijing China

Odorant-binding proteins （OBPs） are soluble proteins mediating chemorecep- tion in insects. In previous research, we investigated the molecular mechanisms adopted by aphids to detect the alarm pheromone （e）-fl-farnesene and we found that the recogni- tion of this and structurally related molecules is mediated by OBP3 and OBP7. Here, we show the differential expression patterns of 5 selected OBPs （OBP 1, OBP3, OBP6, OBPT, OBPS） obtained performing quantitative RT-PCR and immunolocalization experiments in different body parts of adults and in the 5 developmental instars, including winged and unwinged morphs, of the pea aphid Acyrthosiphon pisum. The results provide an overall picture that allows us to speculate on the relationship between the differential expression of OBPs and their putative function. The expression of OBP3, OBP6, and OBP7 in the antennal sensilla suggests a ehemosensory fimction for these proteins, whereas the con- stant expression level of OBP8 in all instars could suggest a conserved role. Moreover, OBP1 and OBP3 are also expressed in nonsensory organs. A light and scanning electron microscopy study of sensilla on different body parts of aphid, in particular antennae, legs, mouthparts, and coruicles-cauda, completes this research providing a guide to facilitate the mapping of OBP expression profiles.

关键词： aphids chemosensilla immunohistochemistry microscopy odorant-binding protein (OBP)

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Analysis of shields made of chiral materials

Analysis of shields made of chiral materials

引用

1992 International Symposium on electromagnetic Compatibility(eMC’92/Beijing)

作者： Vito daniele Riccardo e.Zich. Dipartimento di elettronica Politecnico di TorinoCorso Duca degli Abruzzi 2410129 TorinoItaly.

＜正＞The introduction of slabs composed by chiral materials has been recently suggested in order to offer new degrees of freedom for the design of multilayered structures with enhanced shielding *** an analytical analysis of the shielding effectiveness of chiral slabs is *** slabs are characterized in terms of trasmission matrices that,introducing a proper circuit network representation,lead to express the shielded fields in a closed form, even dealing with arbitrary *** of the most interesting possibility of applications,the magnetic/chiral shields,is discussed comparing the numerical results deduced by the analytical analysis and a proper circuit network model.

关键词：

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

“Bull’s eye”appearance of hepatocellular adenomas in patients with glycogen storage disease type I-atypical magnetic resonance imaging findings:Two case reports

引用

World Journal of Clinical Cases 2021年第4期9卷 871-877页

作者： Federica Vernuccio Stephanie Austin Mathias Meyer Cynthia D Guy Priya S Kishnani daniele Marin Department of Biomedicine Neuroscience and Advanced DiagnosticsUniversity of PalermoPalermo 90100Italy Departments of Pediatrics Duke University Medical CenterDurhamNC 27710United States Department of Radiology Duke University Medical HospitalDurhamNC 27708United States Department of Pathology Duke UniversityDurhamNC 27710United States Division of Medical Genetics Department of PediatricsDuke University Medical CenterDurhamNC 27710United States Department of Radiology Duke University Medical CenterDurhamNC 27710United States

BACKGROUND Hepatocellular adenomas are rare tumors that can occur in patients with glycogen storage disease type *** SUMMARY We herein report two cases of histologically proven hepatocellular adenomas in patients with glycogen storage disease type *** resonance imaging(MRI)was performed after bolus injection of gadoxetate disodium,a liver-specific gadolinium-based MRI contrast *** the present cases,some of the hepatocellular adenomas showed unexpectedly a“bull’s eye”appearance on T2-weighted and post-contrast images,which was not previously described as imaging findings of hepatocellular adenomas in glycogen storage disease.A bull’s eye appearance on T2-weighted images can be encountered in both benign(i.e.,abscess)or malignant(i.e.,epithelioid hemangioendothelioma,cholangiocarcinoma,and metastases)hepatic *** We present two cases of hepatocellular adenomas in patients with glycogen storage disease type 1,in which gadoxetate disodium-MRI showed atypical imaging findings for hepatocellular *** present there is no systematic study evaluating MRI findings of hepatocellular adenomas in patients with glycogen storage disease,further studies are needed to specifically investigate this issue.

关键词： Glycogen storage disease Hepatocellular adenoma Bull’s eye Magnetic resonance imaging Case report Gadoxetate disodium

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

electrical probing of carrier separation in InAs/InP/GaAsSb core-dualshell nanowires

引用

Nano Research 2020年第4期13卷 1065-1070页

作者： Sedighe Salimian Omer Arif Valentina Zannier daniele ercolani Francesca Rossi Zahra Sadre Momtaz Fabio Beltram Sefano Roddaro Francesco Rossella Lucia Sorba NeST Istituto Nanoscienze-CNR and Scuola Normale SuperiorePiazza S.Silvestro 121-56127 PisaItaly IMeM-CNR Institute Parco Area delle Scienze 37/A43124 ParmaItaly Department of Physics"e.Fermi" Universita di PisaLargo Pontecorvo 31-56127 PisaItaly

We investigate the tunnel coupling between the outer p-type GaAsSb shell and the n-type InAs core in catalyst-free InAs/lnP/GaAsSb core-dualshell *** present a device fabrication protocol based on wet-etching processes on selected areas of the nanostructures that enables multiple configurations of measurements in the same nanowire-based device(***-shell,core-core and core-shell).Low-temperature(4.2 K)transport in the shell-shell configuration in nanowires with 5 nm-thick InP barrier reveals a weak negative differential ***,when the InP barrier thickness is increased to 10 nm,this negative differential resistance is fully *** electrical resistance between the InAs core and the GaAsSb shell,measured in core-shell configuration,is significantly higher with respect to the resistance of the InAs core and of the GaAsSb *** field effect,applied via a back-gate,has an opposite impact on the electrical transport in the core and in the shell *** results show that electron and hole free carriers populate the InAs and GaAsSb regions respectively and indicate InAs/InP/GaAsSb core-dualshell nanowires as an ideal system for the investigation of the physics of interacting electrons and holes at the nanoscale.

关键词： core-dualshell nanowires charge carrier separation semiconductor nanowires nanoelectronics

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Large thermal biasing of individual gated nanostructures

引用

Nano Research 2014年第4期7卷 579-587页

作者： Stefano Roddaro daniele ercolani Mian Akif Safeen Francesco Rossella Vincenzo Piazza Francesco Giazotto Lucia Sorba Fabio Beltram NeST Scuola Normale Superiore and Istituto Nanoscienze-CNR Piazza S. Silvestro 121-56127 Pisa Italy Istituto Officina dei Materiali - CNR Basovizza S.S. 14 km 163.51-34149 Trieste Italy Center for Nanotechnology Innovation @NeST Istituto Italiano di Tecnologia Piazza San Silvestro 12 56127 Pisa Italy

We demonstrate very large and uniform temperature gradients up to about 1 K every 100 nm, in an architecture which is compatible with the field-effect control of the nanostructure under test. The temperature gradients demonstrated greatly exceed those typically obtainable with standard resistive heaters fabricated on top of the oxide layer. The nanoheating platform is demonstrated in the specific case of a short-nanowire device.

关键词： thermoelectric andthermomagnetic effects field effect devices nanowires

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Ground peach pits: alternative substrate component for seedling production

引用

Journal of Forestry Research 2019年第5期30卷 1779-1791页

作者： Patricia Mieth Maristela Machado Araujo Maria Helena Fermino Suelen Carpenedo Aimi daniele Rodrigues Gomes Juliana de Marques Vilella Department of Forest Sciences Federal University of Santa MariaSanta MariaBrazil FePAGRO–Agricultural Research Foundation of the State of Rio Grande do Sul Porto AlegreBrazil Federal University of Rio Grande do Sul Porto AlegreBrazil

The exploitation of agro-industrial wastes is a strategy to add value to seedling production and reduce environmental *** production chain for processed peaches generates,approximately,21,000 tons of fruit worldwide,and the pits are used mainly to generate *** objective of the study was to investigate the use of different proportions of ground peach pits(GPP)as a substrate component for seedling growth of eucalyptus dunnii in the nursery and *** proportions of GPP mixed with either commercial substrate(CS)or with brown peat(BP)were *** physical and chemical properties of the substrates,the morphological and physiological attributes of the seedlings and their correlation with substrate properties were *** GPP increased the density,aeration space and pH and reduced total porosity,liquid retention and electric conductivity of the *** use of this component resulted in hormesis,a biphasic dose–response model in which low levels of exposure to this component stimulated biological performance of plants and high levels of exposure inhibited *** improved seedling growth in the nursery and adequate post-planting development of ***,GPP with CS is recommended at 20%of the total substrate and with BP between 15 and 30%.

关键词： Organic waste Prunus persica eucalyptus dunnii Tree species Morphological attributes

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

PReSeNZA ReGOLARe DeL FORAPAGLIe MACCHIeTTATO Locustella naevia DURANTe LA MIGRAZIONe PRIMAVeRILe IN FRANCIACORTA(Brescia)

引用

Natural Disaster Reduction in China 1993年第1期 303-304页

作者： daniele VeZZOLI viale La Famiglia 70 25050 PADeRNO FRANCIACORTA(Brescia)

Per il Bresciano il Forapaglie macchiettato è considerato specie di comparsascarsa e relativamente regolare durante le migrazioni di agosto-settembre e *** segnalazioni note si riferiscono ad ambienti umidi della pianura,dellezone collinari e della parte bassa dell’anfiteatro morenico gardesano,con sporadicheosservazioni anche in ambienti incolti e aridi ricchi di bassa e folta vegetazione (BRI-CHeTTI,1982).

关键词： Brescia PReSeNZA ReGOLARe DeL FORAPAGLIe MACCHIeTTATO Locustella naevia DURANTe LA MIGRAZIONe PRIMAVeRILe IN FRANCIACORTA

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Mesenchymal stem cell secretome and extracellular vesicles for neurodegenerative diseases: Risk-benefit profile and next steps for the market access

引用

Bioactive Materials 2023年第11期29卷 16-35页

作者： Lorella Giovannelli elia Bari Claudio Jommi Fulvio Tartara daniele Armocida Diego Garbossa Fabio Cofano Maria Luisa Torre Lorena Segale Department of Pharmaceutical Sciences University of Piemonte Orientale28100NovaraItaly IRCCS Mondino Foundation 27100PaviaItaly A.U.O Policlinico Umberto INeurosurgery DivisionHuman Neurosciences DepartmentSapienza University00135RomaItaly Department of Neuroscience Rita Levi Montalcini Neurosurgery UnitUniversity of Turin10126TurinItaly Pharmaexceed S.r.l 27100PaviaItaly

Neurodegenerative diseases represent a growing burden on healthcare systems worldwide. Mesenchymal stem cells (MSCs) have shown promise as a potential therapy due to their neuroregenerative, neuroprotective, and immunomodulatory properties, which are, however, linked to the bioactive substances they release, collectively known as secretome. This paper provides an overview of the most recent research on the safety and efficacy of MSC-derived secretome and extracellular vesicles (eVs) in clinical (if available) and preclinical models of Alzheimer’s disease, Parkinson’s disease, amyotrophic lateral sclerosis, multiple sclerosis, Huntington’s disease, acute ischemic stroke, and spinal cord injury. The article explores the biologically active substances within MSC-secretome/eVs, the mechanisms responsible for the observed therapeutic effects, and the strategies that may be used to optimize MSC-secretome/eVs production based on specific therapeutic needs. The review concludes with a critical discussion of current clinical trials and a perspective on potential future directions in translating MSC-secretome and eVs into the clinic, specifically regarding how to address the challenges associated with their pharmaceutical manufacturing, including scalability, batch-to-batch consistency, adherence to Good Manufacturing Practices (GMP) guidelines, formulation, and storage, along with quality controls, access to the market and relative costs, value for money and impact on total expenditure.

关键词： exosomes Microvesicles Secretome Mesenchymal stem cells Secretome formulation Brain regeneration

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Continuous positive airway pressure acutely increases exercise duration in children with severe therapy-resistant asthma:a randomized crossover trial

引用

World Journal of Pediatrics 2021年第2期17卷 189-196页

作者： Claudia Silva Schindel daniele Schiwe Joao Paulo Heinzmann-Filho Natalia evangelista Campos Paulo Marcio Pitrez Marcio Vinicius Fagundes Donadio Laboratory of Pediatric Physical Activity Centro Infant.Pontiffcia Universidade Catolica do Rio Grande do Sul(PUCRS)Av.Ipiranga6690.2°andarPorto AlegreRS CEP 90610-000.Brazil Hospital Moinhos de Vento Porto AlegreBrazil and Centro InfantPontiffcia Universidade Catolica do Rio Grande do Sul(PUCRS)Porto Alegre.Brazil

Background Lower exercise tolerance is an important component of asthma and the possible effects of non-invasive ven-tilation on exercise capacity in individuals with severe therapy-resistant asthma(STRA)are *** study aimed to evaluate the immediate effect of continuous positive airway pressure(CPAP)on exercise tolerance in children with *** We performed a controlled,randomized,crossover clinical trial including subjects aged 6 to 18 years old diagnosed with ***,anthropometric and lung function data were *** participants in the intervention group(IG)used CPAP(PeeP 10cmH2O and FiO20.21)for a period of 40 *** in the control group(CG)used CPAP with mini-mum PeeP at 1 cmH20 also for 40 ***,subjects from both groups underwent cardiopulmonary exercise testing(CPeT).After a 15-day washout period,on a subsequent visit,subjects participated in the opposite group to the initial *** Thirteen subjects with a mean age of 12.30±1.7 years were *** variables of peak expiratory flow(PeF)and forced expiratory volume in the first second(FeV1)before using CPAP and after performing CPeT did not show sig-nificant *** CPeT results,there was no significant difference(P=0.59)between groups at peak exercise for oxygen consumption—VO2(CG:33.4±6.3 and IG:34.5±5.9,mL kg^(-1)min^(-1)).However,the IG(12.4±2.1)presented a total test time(min)significantly(P=0.01)longer than the CG(11.5±1.3).Conclusion The results suggest that the use of CPAP before physical exercise increases exercise duration in children and adolescents with STRA.

关键词： Asthma Non-invasive ventilation Oxygen consumption exercise test exercise tolerance exercise-induced bronchospasm

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Thermonuclear ^19F(p,α0)^16O reaction rate

引用

Chinese Physics C 2018年第1期42卷 135-144页

作者：何建军 Ivano Lombardo daniele Dell’Aquila 徐毅张立勇柳卫平 Key Laboratory of Optical Astronomy National Astronomical Observatories Chinese Academy of Sciences Beijing 100012 China INFN - Sezione di Catania via S. Sofia 1-95123 Catania Italy Dip. di Fisica Univ. di Napoli Federico II via Cintia 1-80126 Napoli Italy INFN - Sezione di Napoli via Cintia 1-80126 Napoli Italy extreme Light Infrastructure - Nuclear Physics 30 Reactorului Street P.O. Box MG-6 077125 Magurele jud. Ilfov Romania Nuclear Physics Institute Czech Academy of Sciences Rez. 25068 Czech Republic China Institute of Atomic energy P. O. Box 275(10) Beijing 102413 China

The thermonuclear^19F（p,α0）16O reaction rate in the temperature region 0.007–10 GK has been derived by re-evaluating the available experimental data, together with the low-energy theoretical R-matrix *** new rate deviates by up to about 30% compared to the previous results, although all rates are consistent within the uncertainties. At very low temperature（e.g. 0.01 GK） our reaction rate is about 20% lower than the most recently published rate, because of a difference in the low energy extrapolated S-factor and a more accurate estimate of the reduced mass used in the calculation of the reaction rate. At temperatures above ^1 GK, our rate is lower, for instance, by about 20% around 1.75 GK, because we have re-evaluated the previous data（Isoya et al., Nucl. Phys.7, 116（1958）） in a meticulous way. The present interpretation is supported by the direct experimental data. The uncertainties of the present evaluated rate are estimated to be about 20% in the temperature region below 0.2 GK,and are mainly caused by the lack of low-energy experimental data and the large uncertainties in the existing *** giant branch（AGB） stars evolve at temperatures below 0.2 GK, where the^19F（p,α）16O reaction may play a very important role. However, the current accuracy of the reaction rate is insufficient to help to describe, in a careful way, the fluorine over-abundances observed in AGB stars. Precise cross section（or S factor） data in the low energy region are therefore needed for astrophysical nucleosynthesis studies.

关键词： asymptotic giant branch(AGB) star nucleosynthesis astrophysical S factor cross section reaction rate

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：