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Raman spectroscopy of isolated carbyne chains confined in carbon nanotubes:Progress and prospects

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Chinese Physics B 2022年第12期31卷 532-542页

作者： Johannes M.A.Lechner pablo Hernández López Sebastian Heeg Institut fur Physik and IRIS Adlershof Humboldt Universitat zu Berlin12489 BerlinGermany

Carbyne is an infinitely long linear chain of carbon atoms with sp1hybridization and the truly one-dimensional allotrope of *** obtaining freestanding carbyne is still an open challenge,the study of confined carbyne,linear chains of carbon encapsulated in carbon nanotubes,provides a pathway to explore carbyne and its remarkable properties in a well-defined *** this review,we discuss the basics and recent advances in studying single confined carbyne chains by Raman spectroscopy,which is their primary spectroscopic characterization *** highlight where single carbyne chain studies are needed to advance our understanding of confined carbyne as a material system and provide an overview of the open questions that need to be addressed and of those aspects currently under debate.

关键词： carbyne linear carbon chains carbon nanotubes Raman spectroscopy

Effect of self-weight consolidation on a hydro-sedimentological model for the Río de la Plata estuary

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International Journal of Sediment Research 2019年第5期34卷 444-454页

作者： pablo Santoro Mónica Fossati pablo Tassi Nicolas Huybrechts Damien Pham Van Bang Ismael Piedra-Cueva Instituto de Mecánica de los Fluidos e Ingeniería Ambiental Facultad de Ingeniería Universidad de la República Université Paris-Est Laboratory for Hydraulics Saint-Venant (ENPC-EDF/R& D-CEREMA) Electricity of France R&D Department Sorbonne Universités Université de Technologie de Compiègne FRE UTC-CNRS 3023 Roberval Centre de Recherche Royallieu Cerema Direction Technique Eau Mer et Fleuves Institut National de la Recherche Scientifique Centre-Eau Terre Environnement

The effect of the consolidation process on the morphodynamics and fine sediment dynamics of the Río de la Plata estuary is explored through a circulation-wave-sediment transport model. The consolidation model is calibrated based on settling column experimental data. Different simulations are done in order to initialize the mud layer distribution and to investigate the impact of different erosion parameter assumptions on the modeled sediment dynamics. Finally a two-year simulation is done with and without the consolidation process and realistic hydrodynamic forcings. Considering the consolidation process, the model correctly reproduces measured vertical density profiles in the Montevideo Bay access channel. The simulated suspended sediment dynamics behavior in Montevideo Bay with the consolidation process provides a more realistic deposition pattern in regard to the dredging activities.

关键词： Cohesive sediment Self-weight consolidation Morphodynamics Numerical modeling

Dealing with a hyper-successful neighbor: effects of the invasive apple snail Pomacea canaliculata on exotic and native snails in South America

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Current Zoology 2019年第3期65卷 225-235页

作者： Mara A.MALDONADO pablo R.MARTIN Laboratorio de Ecologia (DBByF) INBIOSUR (Universidad Nacional del Sur-CONICET) San Juan 670 Bahia Blanca(8000) Argentina

Pomacea canaliculata is a successful invader and also a competitor and predator of other snails and may play a key role in structuring freshwater snail communities both in its native and invaded range. In the present study we evaluated the contact and distant effects of P. canaliculata in its native range on exotic (Melanoides tuberculata and Physa acuta) and native snails (Heleobia parchappii, Biomphalaria peregrina, and Chilina parchappii). Habitat use was affected in P. acuta, H. parchappii, and B. peregrina by contact effects of P. canaliculata, whereas survival was only affected in P. acuta through combined con tact and dista nt effects. Fee undity was reduced in P. acuta and B. peregrina by combined con tact and distant effects;evidence of egg mass predation was also observed in both species. Melanoides tuberculata was not affected at all by P. canaliculata. The snail species with higher withdrawal resp on ses to con tacts with P. canaliculata were those that suffered less mortality by corporal contact, whereas snails with high crawling away responses suffered from higher mortality. The effects of P. canaliculata seem to be highly negative to small non operculate sn ails that lay gelati nous egg masses, whereas large operculate ovoviviparous snails are not affected in their survival and reproducti on. This apple snail may exert biotic resista nee agai nst P. acuta but could favor the establishme nt of M. tuberculata and other function ally similar species in new habitats in South America.

关键词： Ampullariidae behavior biotic resistance interspecific interactions

The Essential Role of Phosphoinositide 3-Kinases(PI3Ks)in Regulating Pro-Inflammatory Responses and the Progression of Cancer

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Cellular & Molecular Immunology 2005年第4期2卷 241-252页

作者： Keqiang Chen pablo Iribarren Wanghua Gong Ji-Ming Wang School of Agriculture and Biology Shanghai Jiaotong University Shanghai 201101 China Laboratory of Molecular Immunoregulation Center for Cancer Research National Cancer Institute-Frederick Frederick MD 21702 USA Basic Research Program SAIC-Frederick National Cancer Institute at Frederick Frederick MD 21702 USA Laboratory of Molecular Immunoregulation Center for Cancer Research National Cancer Institute at Frederick Building 560 Room 31-40 Frederick MD 21702-1201 USA

Phosphoinositide 3-Kinases （PI3Ks） are proteins coupled to a variety of cell surface receptors and play a key role in signal transduction cascade regulating fundamental cellular functions such as transcription, proliferation, and survival. PI3Ks also are important in disease processes such as inflammation and cancer. The aim of this review is to outline current understandings of the PI3K family, mechanism of their activation, their role in inflammatory responses and the development of malignant tumors.

关键词： PI3K signal transduction inflammation malignant tumor

KnowID:An Architecture for Efficient Knowledge-Driven Information and Data Access

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Data Intelligence 2020年第4期2卷 487-512页

作者： pablo Rubén Fillottrani C.Maria Keet Departamento de Ciencias e Ingeniería de la Computación Universidad Nacional del SurBahía BlancaBuenos Aires 8000Argentina Comisión de Investigaciones Científicas Provincia de Buenos AiresArgentina Department of Computer Science University of Cape TownRondebosch 7700South Africa

Modern information systems require the orchestration of ontologies,conceptual data modeling techniques,and efficient data management so as to provide a means for better informed decision-making and to keep up with new requirements in organizational needs.A major question in delivering such systems,is which components to design and put together to make up the required“knowledge to data”pipeline,as each component and process has *** this paper,we introduce a new knowledge-to-data architecture,*** pulls together both recently proposed components and we add novel transformation rules between Enhanced Entity-Relationship(EER)and the Abstract Relational Model to complete the ***’s main distinctive architectural features,compared to other ontology-based data access approaches,are that runtime use can avail of the closed world assumption commonly used in information systems and of full SQL augmented with path queries.

关键词： Extended entity-relationship diagrams Abstract relational model Ontology-based data access

Water evacuations in remote tourist regions: evaluating case studies from natural hazards in North Patagonian lakes, Argentina

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Journal of Mountain Science 2022年第6期19卷 1782-1807页

作者： SALGADO pablo Agustin VILLAROSA Gustavo BEIGT Debora OUTES Valeria IPATEC(Instituto Andino-Patagonico de Tecnologias Biologicas y Geoambientales) CONICET-UNCOAv.de los Pioneros 23508400 S.C.de BarilocheArgentina Centro Regional Uniuersitario Bariloche Universidad Nacional del ComahueQuintral 12508400 S.C.de BarilocheArgentina

The remote North Patagonian region is a sparsely populated territory and a world famous tourist destination located on the leeward side of the Andes Mountains. Recent disasters triggered by various types of geoenvironmental hazards(including volcanic eruptions, mass-wasting processes and extreme weather events) heavily disrupted ground transport networks in a region with already limited territorial accessibilities. All these catastrophes prompted the need to evacuate or assist a number of secluded visitors, locals and livestock extemporaneously on board of coastguards and tourist passenger-ships from the shores of the many glacial lakes that make up part of the regional attraction. Despite the recurrence of these types of events, water evacuations in the region continue to be spontaneous, improvised and hazardous procedures. This contribution reconstructs and assesses a number of recent local-scale cases of lake evacuations and assistances from a number of Patagonian urban centers, rural areas and tourist sites. For each case study, we systematically elaborated on the prime components of an evacuation process, which enabled us to recognize key achievements, failures and conditioning factors for managing emergencies via water transport, most of them inherent to the studied region. Some of the complexities to emerge from case studies referred to: complex hazard-related scenarios;limited ground-based accessibilities and risk of isolation;various inter-and intra-organizational issues, incidental to natural reserves and tourist regions;a wide range of particular demographic features;and the availability and vulnerability of water transport resources. We suggested fundamental and replicable recommendations for developing water evacuation plans, also identifying forthcoming problems to solve in order to improve the management of emergencies through this alternative means of transport.

关键词： Water transport Emergency management Accessibility problems Tourism activities Volcanic crises Mountain area

Morphological variation in the short-tailed fruit bat(Carollia)in Ecuador,with comments on the practical and philosophical aspects of boundaries among species

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Integrative Zoology 2010年第3期5卷 226-240页

作者： pablo JARRíN-V. Cristina FLORES Janeth SALCEDO Yasuni Research Station School of Biological SciencesPontifical Catholic University of EcuadorQuitoEcuador Center for Ecology and Conservation Biology Department of BiologyBoston UniversityMassachusettsUSA Central University of Ecuador School of Biology and ChemistryQuitoEcuador

The mechanisms for the morphological delimitation of species in Carollia remain poorly *** is the first study to assess variation in size and shape from strictly geometric *** factors are assessed by statistical perspectives of distribution,overlap and relative *** its overlap,the size of the skull seems to be the most influential character for the discrimination of species,with shape playing a much smaller *** smallest species seems to be the most distinct in shape,not only in terms of distance among centroids in morphometric space,but also in the overall trend and direction of *** to previous studies,sexual dimorphism is not given by size but by distinct shapes of the *** such as the shape of the maxilla,previously described qualitatively as discrete with sharp boundaries,appear to be truly continuous with fuzzy borders among *** morphometric space is a gamut of continuous variation and overlap,the taxonomic error rate for size characters seems to be substantial for the medium-sized species(Carollia brevicauda Schinz,1821),with approximately 30–40%of individuals erroneously assigned to a different species after a jackknifed discriminant *** taxonomic error is higher for shape ***,systematic and ecological consequences of the observed patterns of shape and size variation are commented within the context of previously proposed arguments and hypotheses.

关键词： boundaries Carollia character state discriminant morphometrics

RESIDENTIAL SOLAR ENERGY POTENTIAL FOR PUBLIC DISSEMINATION:A CASE STUDY IN CONCEPCION,CHILE

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Journal of Green Building 2016年第1期11卷 118-133页

作者： Rodrigo García Alvarado Lorena Troncoso pablo Campos University of Bio-Bío Department of Design and Theory of ArchitectureConcepciónChile University of Concepción Department of Mechanical EngineeringConcepciónChile

This paper presents a method for estimating the solar capture capacity of dwell-ings using the central urban area of Concepción,Chile,as a case study in order to promote self-generation of energy by *** method takes into account the growing domestic energy demand and the possibility of meeting this demand through integrated solar energy collection into buildings using different *** methodology considers a study of the potential incoming solar radiation on buildings according to their geographical location and the surrounding *** capacity for solar capture is then estimated for different dwelling types accord-ing to their ***,the energy contribution provided by differ-ent technologies(solar thermal,photovoltaic and hybrid)is identified in relation to the main average energy demands for electricity,water and space ***,systems for each dwelling are recommended in an urban map available *** development is based on climate information,cartography,aerial photo-graphs,surveys,housing models,technical standards,standardised calculations and dynamic simulations,implemented according to building layouts from an online Geographic Information System(GIS).The housing types are categorised in an urban map that relates household demands and the contribution of different solar energy *** to the estimates calculated,the residential units in the study offer sufficient solar capacity to supply between 40 and 60%of their energy consumption,especially in detached houses using roof-mounted hybrid systems.

关键词： solar energy urban area housing solar map Concepción Chile

Self-powered smart patch for sweatconductivity monitoring

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Microsystems & Nanoengineering 2019年第1期5卷 672-681页

作者： Laura Ortega Anna Llorella Juan pablo Esquivel Neus Sabate Instituto de Microelectronica de Barcelona IMB-CNM(CSIC)C/del Til·lers.Campus Universitat Autonoma de Barcelona(UAB)08193 BellaterraBarcelonaSpain Catalan Institution for Research and Advanced Studies(ICREA) Passeig Lluís Companys 2308010 BarcelonaSpain

A self-powered skin patch for the measurement of sweat conductivity is *** key component of the patch consists of a paper battery that is activated upon absorption of *** body fluid acts as the battery electrolyte,the conductivity of which has a direct impact on the battery-generated output power and *** particular behaviour enables the operation of a very simple and robust conductivity sensor in direct current mode without needing an external power *** device presented in this paper takes advantage of this new measurement method to develop a sweat patch for screening cystic fibrosis that operates with an extremely simple electronic circuit that minimizes its cost and environmental *** patch provides an unambiguous digital result that can be read in an electrochromic display and yields 95%sensitivity and 100%specificity when tested with artificial eccrine perspiration samples.

关键词： battery conductivity patch