cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Applying System Analysis and System Dynamics Modelling In Complex Research Projects - The Case Of VALUMICS
Creators: name: Olafsdottir, Anna Hulda
name: Gudbrandsdottir, Ingunn
name: Sverdrup, Harald U.
name: Bogason, Sigurdur G.
name: Olafsdottir, Gudrun
name: Stefansson, Gunnar
name: Olafsdottir, Anna Hulda
name: Gudbrandsdottir, Ingunn
name: Sverdrup, Harald U.
name: Bogason, Sigurdur G.
name: Olafsdottir, Gudrun
name: Stefansson, Gunnar
Publisher: name: Unknown
Year: 2018
Subjects: subject: Agribusiness
subject: Agricultural and Food Policy
subject: Agricultural Finance
subject: food system network, value chains, supply chains, dynamic modelling, system dynamics

description: VALUMICS is a Horizon 2020 project funded by the European Commission (2017-2021). The project structure is highly integrated and transdisciplinary, building on the expertise of over 30 specialists in various fields of research including knowledge integration through systems analysis and system dynamics modelling, food science, supply chain management, life cycle assessment, logistics, economics and social science. The aim of the project is to analyze the dynamics of food supply systems using a structural analysis including system analysis and perform system simulations using system dynamics. The VALUMICS research approach and the project design are explained and it is justified why system analysis is needed to obtain an understanding of the complex connections and interactions of the distinct parts of food systems. Patterns will be recognized and thus causes and effects of complex relations within the selected food supply system and networks will be identified. This understanding of the functioning of the system can in turn be used to identify policy interventions.
Política de Gestão da Colecção de Referência
Creators: name: Ferreira, Maria Isabel Goulão De Matos
Publisher: name: Cadernos BAD
Year: 2003

description: O presente trabalho tem como objectivo tentar abordar questões relacionadas com a política de gestão da colecção de referência, dando especial ênfase à selecção de recursos electrónicos. É abordada a importância de uma colecção de referência, o que a caracteriza, o seu futuro e a necessidade de formulação de uma política de gestão de colecções. Refere-se a necessidade de partilha de recursos.
description: Cadernos BAD, N.º 1 (2003): Formar para informar
Skewness of matter distribution in clustering dark energy cosmologies
Creators: name: Velten, Hermano
name: Fazolo, Raquel Emy
Publisher: name: arXiv
Year: 2019
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We calculate the skewness (the third moment $S_3$) of matter distribution in dynamical dark energy cosmologies. We pay particular attention to the impact of dark energy perturbations on this quantity. There is indeed a clear signature of dark energy perturbations on this quantity. By properly allowing dark energy perturbations we show that their impact on $S_3$ is strong enough (a factor $\sim 3$ greater) to easily discriminate between clustering and non-clustering dark energy cosmologies. This indicates that high order statistics of the cosmic density field are useful to the study of dark energy models and are potentially able to rule out clustering dark energy cosmologies.
description: 7 pages, 2 figures
Professional accreditation of library and information courses in the United Kingdom
Creators: name: Huckle, Marion
Publisher: name: Cadernos BAD
Year: 2003

description: O artigo revê a história e o desenvolvimento da acreditação profissional na área de biblioteca e informação, primeiramente na perspectiva do ensino de nível superior no Reino Unido e, em seguida, no contexto do desenvolvimento do ensino profissional em biblioteca e ciência da informação. Descreve as práticas e procedimentos actuais e conclui considerando a mudança de foco e de direcção que a revisão do processo de acreditação em curso, no CILIP, representa.
description: Cadernos BAD, N.º 1 (2003): Formar para informar
An Approximation to Agribusiness Development in the Value Chain of the Bivalve Mollusk "Anadara Tuberculosa (Sowerby, 1833) (Arcidae)"
Creators: name: Prado-Carpio, Eveligh
name: Quezada-Abad, César
name: Martínez-Soto, Moisés
name: Rodríguez-Monroy, Carlos
name: Morris-Díaz, Anne
name: Prado-Carpio, Eveligh
name: Quezada-Abad, César
name: Martínez-Soto, Moisés
name: Rodríguez-Monroy, Carlos
name: Morris-Díaz, Anne
Publisher: name: Unknown
Year: 2018
Subjects: subject: Agribusiness
subject: Agricultural and Food Policy
subject: Agricultural Finance
subject: Agribusiness management, Value chain, Bivalve mollusk, "Anadara tuberculosa (Sowerby,
subject: 1833) (Arcidae)”

description: The mollusk "Anadara tuberculosa (Sowerby, 1833) (Arcidae)", known in Ecuador with the common name of "Concha Prieta", in Mexico as the clam "Pata de Mula", in France with the name "Arche Noire" and in England as "Blood Cockle", is a mangrove bivalve exploited all along the Pacific coast. It is a species with great possibilities for fishing development. In its adult phase, it lives only in mangrove swamps, always associated with the red mangrove "Rhizophora mangle" in the intertidal zone, where it grows almost completely buried in the mud. In Colombia, where it is called "Piangua", it is one of the most exploited bivalve species on the Pacific coast. The artisanal activity which benefits the communities is usually performed by families that collect these mollusks for food or to commercialize them in the local market. Currently, the resource, besides being used for consumption and local commerce, is being exported from Colombia to Ecuador. In Ecuador, a constant extraction has been maintained during the period 2004-2008, with an estimated total landing of 55.3 million shells among all receiving ports. In the Province of El Oro, the extraction and commercialization of Anadara tuberculosa is an economic activity with low performance and absence of added value in the production chain. The objective of this research is to explore the problem of agribusiness in the value chain of the bivalve mollusk Anadara tuberculosa. Specifically, to establish its possible causes and consequences, as part of a broader research oriented towards the development of an agribusiness management model that promotes its sustainable exploitation and entry into international markets, in particular the European market, in which consumers of Latin American origin, represent a segment that could be interested in its intake, complying with the added value standards and quality required.
Spontaneous back-pain alters randomness in functional connections in large scale brain networks: A random matrix perspective
Creators: name: Matharoo, Gurpreet S.
name: Hashmi, Javeria A.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Neurons and Cognition (q-bio.NC)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: We use randomness as a measure to assess the impact of evoked pain on brain networks. Randomness is defined here as the intrinsic correlations that exist between different brain regions when the brain is in a task-free state. We use fMRI data of three brain states in a set of back pain patients monitored over a period of 6 months. We find that randomness in the task-free state closely follows the predictions of Gaussian orthogonal ensemble of random matrices. However, the randomness decreases when the brain is engaged in attending to painful inputs in patients suffering with early stages of back pain. A persistence of this pattern is observed in the patients that develop chronic back pain, while the patients who recover from pain after six months, the randomness no longer varies with the pain task. The study demonstrates the effectiveness of random matrix theory in differentiating between resting state and two distinct task states within the same patient. Further, it demonstrates that random matrix theory is effective in measuring systematic changes occurring in functional connectivity and offers new insights on how acute and chronic pain are processed in the brain at a network level.
description: 18 Pages, 5 Figures
title: Ringworm - occurrence, control and prevention in young cattle
Creators: name: Edwardson, John
Publisher: name: The Open University
Year: 1990

description: Regular weekly observations of naturally occurring outbreaks of ringworm in young cattle over many years have provided detailed information on facets of the epizoology of the disease, control by therapy and preventive measures. The epizoology or distribution of the disease demonstrated an average incubation period of 28 days. Sites of lesions aided detection of early disease with the predominant site for first lesions being around the eyes. In yearlings unusual sites for lesions included the perianal area and under the jaw. All with outbreaks were found to resolve / to spontaneous recovery and in these studies the mean duration of lesions was 4 weeks, duration in animals was 8 weeks, and in outbreaks 18 weeks, in untreated disease of naturally occurring outbreaks. These figures demonstrated the importance of determining spontaneous recovery in assessing the value of therapy in drug trials. Control by therapy was found to be variable and difficult if not supported by preventive measures. Controlled drug trials by strict regime have shown the effectiveness of Griseofulvin. However the use of Natamycin or Enilconazole was not so effective if treatment was delayed. Early therapy with copper naphthenate and cod liver oil was effective when supported by preventive measures. The major obstacle to control on calf and beef units appears to be the frequent introduction of infection via purchases of calves. Fifteen outbreaks were considered to be introduced through 45 group purchases in 3 years.
title: A behavioural investigation of the function of glycoprotein fucosylation in learning and memory in the day-old domestic chicken.
Creators: name: Barber, Alistair John
Publisher: name: The Open University
Year: 1990

description: Two new paradigms of learning in the day-old domestic chick were developed and tested. The first was a serial colour-discrimination passive avoidance task, similar to that used by Gibbs and Ng (1977), in which chicks were trained to discriminate between red and green stimuli by pairing one with the bitter taste of methylanthranilate. The second was a sickness-conditioned aversion task, similar to that developed by Garcia and Ervin (1968), in which chicks were trained to associate pecking at a stimulus with subsequent sickness, induced by lithium chloride injection. 2-Deoxy galactose (2-Dgal), a fucose analogue that inhibits the completion of brain fucosylglycoproteins, induced amnesia for both tasks when injected into both hemispheres of the forebrain before training. Amnesia was similarly induced for the passive avoidance task when 2-Dgal was injected into the right forebrain alone, but not the left forebrain. This indicates that fucosylglycoprotein incorporation has a more important function in the right forebrain after passive avoidance training. No amnesia for the sickness-conditioned aversion task was detected after injection of 2- Dgal into either the left or the right forebrain alone. Thus either hemisphere was capable of learning this task but only one hemisphere was required. 2-Dgal was tested for a state-dependent action in both learning paradigms, by readministration of the drug before the retention test, in a 2x2 experimental design. The amnesia was not state-dependent, since readministration of 2-Dgal did not lead to recall of the learned response in either task. Thus the amnesia was not due to learned information becoming cue-dependent. Instead, amnesia was caused by the direct interruption of molecular processes necessary for memory formation. The results are discussed in the context of previous biochemical and morphological findings concerning fucosylglycoprotein incorporation and synaptic remodeling.
Wrinkling and imaging of thin curved sheets
Creators: name: Emerse, Megha
name: Goehring, Lucas
Publisher: name: arXiv
Year: 2024
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Thin films or sheets subjected to external forces often undergo mechanical instability, leading to regular patterns of wrinkles, folds, and creases. As can be anticipated from the difficulty of flattening a curved globe, any natural curvature of the sheet will have a strong influence on these instabilities. Here, we develop a non-invasive synthetic schlieren imaging technique to image and reconstruct the surface of wrinkling curved sheets, confined to float on water. Our method circumvents the small-amplitude limit of related imaging techniques, and we demonstrate robust means to estimate the reconstruction accuracy. We then evaluate how the sign and magnitude of Gaussian curvature affects the wrinkling of thin curved sheets, and compare observations of the wrinkle wavelength, amplitude and domain structure with recent theoretical predictions. While generally validating model predictions, we find that the assumption of a conserved surface area during wrinkling should be treated with some care. The control of wrinkling behavior demonstrated here can have application in the design of liquid lenses, microfluidics, active textured surfaces, and flexible electronic components.
description: 12 pages, 11 figures
Generalized Path Algebras and Pointed Hopf Algebras
Creators: name: Zhang, Shouchuan
name: Zhang, Yao-Zhong
name: Guo, Xijing
Publisher: name: arXiv
Year: 2003
Subjects: subject: Rings and Algebras (math.RA)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 16w30, 05Cxx

description: Most of pointed Hopf algebras of dimension $p^m$ with large coradical are shown to be generalized path algebras. By the theory of generalized path algebras it is obtained that the representations, homological dimensions and radicals of these Hopf algebras. The relations between the radicals of path algebras and connectivity of directed graphs are given.
description: 16page
A dimensão pedagógica da pesquisa nos cursos de Biblioteconomia do Mercosul: reflexões sobre uma trajetória de harmonização curricular
Creators: name: Guimarães, José Augusto Chaves
name: Rodrigues, Mara Eliane Fonseca
Publisher: name: Cadernos BAD
Year: 2003

description: Partindo da concepção de pesquisa como mola mestra para um ensino de qualidade e considerando-se o facto de a mesma constituir uma das áreas curriculares acordadas para os cursos de Biblioteconomia do Mercosul, analisam-se, sob uma óptica histórica, as concepções de pesquisa desenvolvidas no âmbito dos Encontros de Diretores e Docentes de Biblioteconomia do Mercosul (Porto Alegre, 1996; Buenos Aires, 1997; Santiago do Chile, 1998, Montevideu, 2000, Assunção, 2001 e Londrina, 2002) como subsídios para o delineamento de políticas de pesquisa para a graduação em Biblioteconomia no Mercosul. Para tanto, parte-se de uma reflexão teórica sobre pesquisa no ensino (e, em especial, no ensino de Biblioteconomia) para, a seguir, analisar a evolução das discussões da área curricular 6 – Investigação – levadas a cabo no âmbito dos referidos eventos.
description: Cadernos BAD, N.º 1 (2003): Formar para informar
Superdense coding of quantum states
Creators: name: Harrow, Aram
name: Hayden, Patrick
name: Leung, Debbie
Publisher: name: arXiv
Year: 2003
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We describe a method to non-obliviously communicate a 2l-qubit quantum state by physically transmitting l+o(l) qubits of communication, and by consuming l ebits of entanglement and some shared random bits. In the non-oblivious scenario, the sender has a classical description of the state to be communicated. Our method can be used to communicate states that are pure or entangled with the sender's system; l+o(l) and 3l+o(l) shared random bits are sufficient respectively.
description: 5 pages, revtex4
A oferta de formação a nível internacional
Creators: name: Azevedo, Ana
Publisher: name: Cadernos BAD
Year: 2003

description: Neste artigo formulam-se duas questões. A primeira sublinha quão difusa é ainda a área da designação profissional de profissões emergentes em contextos em mutação: bibliotecas, arquivos, etc. A segunda procura na designação e conteúdo da oferta de formação, a nível internacional, a resposta para a primeira. Em conclusão estamos a caminho...
description: Cadernos BAD, N.º 1 (2003): Formar para informar
Current Trends in Global Quantum Metrology
Creators: name: Mukhopadhyay, Chiranjib
name: Montenegro, Victor
name: Bayat, Abolfazl
Publisher: name: arXiv
Year: 2024
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum sensors are now universally acknowledged as one of the most promising near-term quantum technologies. The traditional formulation of quantum sensing introduces a concrete bound on ultimate precision through the so-called local sensing framework, in which a significant knowledge of prior information about the unknown parameter value is implicitly assumed. Moreover, the framework provides a systematic approach for optimizing the sensing protocol. In contrast, the paradigm of global sensing aims to find a precision bound for parameter estimation in the absence of such prior information. In recent years, vigorous research has been pursued to describe the contours of global quantum estimation. Here, we review some of these emerging developments. These developments are both in the realm of finding ultimate precision bounds with respect to appropriate figures of merit in the global sensing paradigm, as well as in the search for algorithms that achieve these bounds. We categorize these developments into two largely mutually exclusive camps; one employing Bayesian updating and the other seeking to generalize the frequentist picture of local sensing towards the global paradigm. In the first approach, in order to achieve the best performance, one has to optimize the measurement settings adaptively. In the second approach, the measurement setting is fixed, however the challenge is to identify this fixed measurement optimally.
description: Topical Review, Close to published version
Uma nova perspectiva em Formação: o projecto E-TERM (European Training in Electronic Records Management)
Creators: name: Ribeiro, Fernanda
Publisher: name: Cadernos BAD
Year: 2003

description: Em face dos novos contextos em que os técnicos e gestores de informação desenvolvem a sua actividade, questiona-se a visão que, tradicionalmente, tem enformado a formação profissional, bem como os seus desajustamentos face aos desafios que a realidade informacional dos dias de hoje coloca. Aborda-se, de seguida, o Projecto E-TERM (European Training in Electronic Records Management) como exemplo paradigmático de uma nova perspectiva que, num modelo de formação contínua, pretende contribuir para reciclar não apenas profissionais que lidam com a informação no âmbito das organizações (arquivistas, gestores de informação, informáticos), mas também os próprios agentes produtores dessa mesma informação (gestores, pessoal administrativo, pessoal técnico, etc.).
description: Cadernos BAD, N.º 1 (2003): Formar para informar
Scatonomus paulosawayai Vulcano and Pereira 1973
Creators: name: Valois, Marcely C.
name: Vaz-de-Mello, Fernando Z.
name: Silva, Fernando A. B.
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Scarabaeidae
Scatonomus
Scatonomus paulosawayai

description: Scatonomus paulosawayai Vulcano and Pereira, 1973: 536.
 Diagnosis
 Scatonomus barbatus, S. canhedoae sp. nov., S. fasciculatus and S. paulosawayai have deep lateral emarginations filled with setae at the clypeal edge (Figure 3 (a, b, d, i)). However, S. paulosawayai has the clypeal edge lacking median teeth and the median portion between the lateral emarginations with rectangular shape (Figure 3 (i)), dorsum with green or blue reflections (Figure 1 (i)), head and pronotum wrinkled and elytral interstriae opaque, with well-defined microgranulation.
 Redescription
 Male: unknown. Female: length: 13 mm. Dorsum with black, green or blue reflections (Figure 1 (i)). Head: surface wrinkled (Figure 3 (i)). Clypeo-genal and fronto-clypeal sutures wide, sulcate. Anterior clypeal and genal edges with rows of ventral, orange setae (Figure 3 (i)). Antennal club filled with short setae. Thorax: pronotal surface wrinkled and puncticulate. Pronotal disc slightly elevated at the anteromedian portion. Mid-longitudinal sulcus on pronotal disc filled with fine punctures. Transverse carina of hypomera complete, reaching the lateral edge. Anterior and lateral edges of hypomera densely coated with setae. Surface of mesepimeron and mesanepisternum with green reflections, finely striate. Disc of metaventrite flat, punctate, with shallow longitudinal sulcus medially. Lateral lobes of metaventrite with well-defined microgranulation and sparse shallow punctures. Elytra: striae thin, punctures shallowly impressed. Seventh stria almost reaching the elytral base. Eighth stria absent at anterior one-fifth. Ninth stria carinate, inconspicuous near basal portion of elytra. Interstriae punctate, with well-defined microgranulation. Legs [ventral surface]: profemora puncticulate, posterior edge with setose punctures near trochanter. Outer edge of protibiae with two acute teeth, apical tooth longer than median and basal teeth. Meso- and metafemora finely punctate. Outer carina of mesotibiae and metatibiae with row of small teeth. Inner edge of mesotibiae and metatibiae carinate, except by its apical one-third. Abdomen: posterior half of ventrites II– IV slightly depressed. Ventrite V 3 times shorter than ventrite VI. Pygidium: shiny and puncticulate.
description: Published as part of Valois, Marcely C., Vaz-de-Mello, Fernando Z. & Silva, Fernando A. B., 2020, A taxonomic revision of the Neotropical genus Scatonomus Erichson, 1835 (Coleoptera: Scarabaeidae: Scarabaeinae), pp. 1081-1114 in Journal of Natural History 54 (17 - 18) on page 1105, DOI: 10.1080/00222933.2020.1781947, http://zenodo.org/record/5020903
Divergent effects of genetic and pharmacological inhibition of Nox2 NADPH oxidase on insulin resistance related vascular damage. Supplemental Material. Maqbool et al 2020
Creators: name: Maqbool, Azhar
Publisher: name: figshare
Year: 2020
Subjects: Medicine

description: Supplemental Data consists of (a) Breeding and Genotyping Strategy(b) Genotyping Protocol, protocols for APOE PCR, ESMIRO PCR, Nox PCR (c) Details of Taqman Probes used(d) Data concerning metabolic phenotype of ESMIRO/ApoE-/-/Nox2-/y and ESMIRO/ApoE-/-/Nox2+/y mice(e) Data showing elastin fibre fragmentation(f) Data showing the effect of genetic ablation or pharmacological inhibition of Nox2 on Heavy Chain Myosin expression and alpha smooth muscle actin in aortas of mice(g) Data showing liver function and lipid deposition in ESMIRO/ApoE-/-/Nox2-/y and ESMIRO/ApoE-/-/Nox2+/y mice
Referencial das competências dos profissionais europeus de informação e documentação: da génese às perspectivas de futuro
Creators: name: Correia, Zita
Publisher: name: Cadernos BAD
Year: 2003

description: Descreve-se a génese do Referencial Europeu de Informação e Documentação, reportando as suas origens no âmbito do projecto europeu DECIDoc, incluindo algumas notas relativas ao processo de elaboração e ao processo de validação. Passa-se em seguida à descrição da estrutura do Referencial, que é antecedida pela discussão do conceito de competência, após o que se comenta as trinta competências recenseadas pelo Referencial, a escala de quatro níveis de desempenho usada para cada competência e as aptidões requeridas para o bom exercício da profissão. Discutem-se ainda as aplicações possíveis e as limitações deste repertório, bem como o seu futuro.
description: Cadernos BAD, N.º 1 (2003): Formar para informar
Leituras
Creators: name: Nunes, Henrique Barreto
name: Silva, Armando Malheiro
name: Faria, Isabel
name: Cabral, Luis
Publisher: name: Cadernos BAD
Year: 2003

description: ENCONTRO LUSO-ESPANHOL DE CENTROS DE DOCUMENTAÇÃO ESPECIALIZADOS EM COMUNICAÇÃO SOCIAL. 3, Viana do Castelo, 1981 - Programa, comunicações e conclusões. Lisboa, Direcção-Geral de Informação, 1982,95 p. MATOS, Sebastião - Biblioteca... património cultural e meio de educação permanente, «Boletim Cultural de Esposende», 1, Jun . 1982, pp. 34-48 . OLIVEIRA, Eduardo Pires de - «O Correio do Minho» e o seu contributo para o estudo do património cultural minhoto, «Barcelos Revista», Barcelos, 1 (1) 1982, p. 179-212. «BOLETIM DA FACULDADE DE DIREITO. ÍNDICE GERAL: VOLS.1 A 50». Coimbra, Universidade de Coimbra, 1981. ALARCÃO, Jorge de – Introdução ao estudo da história e património locais, Coimbra, Faculdade de Letras, 1982, 67 p. UNE, Maurice B. - Library surveys: an introduetion to the use planning proeedure and presentation of surveys, revised by Sue Stone. 2nd ed. - London: Clive Bingley, 1982. PINGAUD, B, BARREAU, J. C. - Pour une politique nouvelle du livre et de la léeture: rapports de la Commission du livre et de la léeture - Paris: Dalloz, 1982.
description: Cadernos BAD, N.º 1 (1983)
Plasmonic Ferroelectric Modulators
Creators: name: Messner, Andreas
name: Eltes, Felix
name: Ma, Ping
name: Abel, Stefan
name: Baeuerle, Benedikt
name: Josten, Arne
name: Heni, Wolfgang
name: Caimi, Daniele
name: Fompeyrine, Jean
name: Leuthold, Juerg
Publisher: name: arXiv
Year: 2019
Subjects: subject: Applied Physics (physics.app-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Integrated ferroelectric plasmonic modulators featuring large bandwidths, broad optical operation range, resilience to high temperature and ultracompact footprint are introduced. Measurements show a modulation bandwidth of 70 GHz and a temperature stability up to 250°C. Mach-Zehnder interferometer modulators with 10-$μ$m-long phase shifters were operated at 116 Gbit/s PAM-4 and 72 Gbit/s NRZ. Wide and open eye diagrams with extinction ratios beyond 15 dB were found. The fast and robust devices are apt to an employment in industrial environments.
As2S3, As2Se3 and As2Te3 nanosheets: Superstretchable semiconductors with anisotropic carrier mobilities and optical properties
Creators: name: Mortazavi, Bohayra
name: Shojaei, Fazel
name: Azizi, Maryam
name: Rabczuk, Timon
name: Zhuang, Xiaoying
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: In this work, density functional theory calculations were carried out to explore the mechanical response, dynamical/thermal stability, electronic/optical properties and photocatalytic features of monoclinic As2X3 (X=S, Se and Te) nanosheets. Acquired phonon dispersions and ab-initio molecular dynamics results confirm the stability of studied nanomembranes. Observation of relatively weak interlayer interactions suggests that the exfoliation techniques can be potentially employed to fabricate nanomembranes from their bulk counterparts. The studied nanosheets were found to show highly anisotropic mechanical properties. Notably, new As2Te3 2D lattice predicted by this study is found to exhibit unique superstretchability, which outperforms other 2D materials. In addition, our results on the basis of HSE06 functional reveal the indirect semiconducting electronic nature for the monolayer to few-layer and bulk structures of As2X3, in which a moderate decreasing trend in the band-gap by increasing the thickness can be established. The studied nanomaterials were found to show remarkably high and anisotropic carrier mobilities. Moreover, optical results show that these nanosheets can absorb the visible light. In particular, the valence and conduction band edge positions, high carrier mobilities and optical responses of As2Se3 nanosheets were found to be highly desirable for the solar water splitting. The comprehensive vision provided by this study not only confirm the stability and highly attractive electronic and optical characteristics of As2S3, As2Se3 and As2Te3 nanosheets, but also offer new possibilities to design superstretchable nanodevices.
Elementary Excitations in One-Dimensional Electromechanical Systems; Transport with Back-Reaction
Creators: name: Ahn, Kang-Hun
name: Yi, Hangmo
Publisher: name: arXiv
Year: 2003
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Using an exactly solvable model, we study low-energy properties of a one-dimensional spinless electron fluid contained in a quantum-mechanically moving wire located in a static magnetic field. The phonon and electric current are coupled via Lorentz force and the eigenmodes are described by two independent boson fluids. At low energies, the two boson modes are charged while one of them has excitation gap due to back-reaction of the Lorentz force. The theory is illustrated by evaluating optical absorption spectra. Our results are exact and show a non-perturbative regime of electron transport.
Vector, Bidirector and Bloch Skyrmion Phases Induced by Structural Crystallographic Symmetry Breaking
Creators: name: Erb, K. C.
name: Hlinka, J.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The 212 species of structural phase transitions which break macroscopic symmetry are analyzed with respect to the occurrence of time-reversal invariant vector and bidirector order parameters. The possibility of discerning the orientational domain states of the low-symmetry phase by these `vectorlike' physical properties has been derived using a computer algorithm exploiting the concept of polar, axial, chiral and neutral dipoles. It is argued that for species 32 > 3, 422 > 4 and 622 > 6, Bogdanov-Yablonskii phenomenological theory for a ferromagnetic Bloch Skyrmions applies also to the ferroelectric Bloch Skyrmions. In these fully-ferroelectric and nonferroelastic species, the Ginzburg Landau functional allows a pseudo-Lifshitz invariant of chiral bidirector symmetry, analogous to the chiral Dzyaloshinskii-Moria term assumed in magnetic Bloch Skyrmion theory.
description: 5 pages, 3 figures
Variable - temperature scanning optical and force microscope
Creators: name: Fodor, P. S.
name: Zhu, H.
name: Patil, N. G.
name: Levy, J.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: The implementation of a scanning microscope capable of working in confocal, atomic force and apertureless near field configurations is presented. The microscope is designed to operate in the temperature range 4 - 300 K, using conventional helium flow cryostats. In AFM mode, the distance between the sample and an etched tungsten tip is controlled by a self - sensing piezoelectric tuning fork. The vertical position of both the AFM head and microscope objective can be accurately controlled using piezoelectric coarse approach motors. The scanning is performed using a compact XYZ stage, while the AFM and optical head are kept fixed, allowing scanning probe and optical measurements to be acquired simultaneously and in concert. The free optical axis of the microscope enables both reflection and transmission experiments to be performed.
description: 24 pages, 9 figures, submitted to the journal "Review of Scientific Instruments"
Imagens da revolução ou graffiti de 1974
Creators: name: Nagel, Rolf
Publisher: name: Cadernos BAD
Year: 2003

description: A propósito dos graffiti da revolução de Abril de 1974, o autor refere a documentação existente e tece considerações ao papel do arquivista no tratamento da imagem.
description: Cadernos BAD, N.º 1 (1983)
INFLUENCE OF GENDER IN THE PROGRESSION OF CHRONIC HEART FAILURE
Creators: name: Ablyatifov, Aziz
name: Pulatova, Kristina
Publisher: name: Zenodo
Year: 2024

description: Chronic heart failure (CHF) is a serious problem for all developed countries of the world, despite significant progress in treatment, as the prognosis of these patients remains poor. This is primarily due to the aging of the population, as well as to the improvement of methods for the treatment of coronary heart disease (CHD), hypertension and other heart diseases that result in CHF.     According to the latest recommendations of 2016, about 1-2% of the adult population of developed countries have CHF. At the age of 55, the risk of developing CHF during the rest of life is 33% in men and 28% in women. Within one year, 17% of hospitalized and 7% of stable (outpatient) patients with CHF die. The prognosis of CHF patients remains extremely poor: their risk of death is four times higher compared to those without CHF. Therefore, CHF is one of the main problems in modern gerontology and geriatrics and has a global socio-economic character.
Study of B meson decays to three-body charmless hadronic final states
Creators: name: Garmash, A.
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We report results of a study of charmless B meson decays to three-body KPiPi, KKPi and KKK final states. Measurements of branching fractions for B decays to K+0Pi+Pi-, K+K+K-, K0K+K-, KsKsK+ and KsKsKs final states are presented. The decays B0=>K0K+K-, B+=>KsKsK+ and B0=>KsKsKs are observed for the first time. We also report evidence for B+=>K+K-Pi+ decay. For the three-body final states K0K+K-, KsKsPi+, K+K+Pi- and K-Pi+Pi+ 90% confidence level upper limits are reported. Finally, we discuss the possibility of using the three-body B0=>KsK+K- decay for CP violation studies. The results are obtained with a 78 fb^-1 data sample collected at the Y(4S) resonance by the Belle detector operating at the KEKB asymmetric energy e+e- collider.
description: 15 pages, 6 figures. To be submitted to PRD
Design and chemical behavior of novel pyrimidine derivatives and their evaluation of cytotoxicity
Creators: name: Sakr, Alaa R.
name: Assy, Mohamed G.
name: ELasaad, Youssra S.
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biochemistry
subject: Cell Biology
subject: Pharmacology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Developmental Biology
subject: Cancer

description: Diphenyl-4-thioxo-1,4-dihydropyrimidin-5-yl)ethan-1-one 4 was obtained upon the reaction of (phenylamino)but-2-enethioyl)benzamide 3 with sodium hydroxide. The reactions of 4 with several active species such as benzaldehyde, urea, malononitrile, ethyl cyanoacetate, hydrazine, and carbon disulfide were studied. The antitumor activities of some selective compounds were examined against two cell lines: Mammalian cell lines: A-549 cells (human lung cancer cell line) and MRC-5 cells (normal human lung fibroblast cell line); some of the compounds were highly efficient; compound 13 has the most effective anticancer activity.
Dilution of 2D antiferromagnetism by Mn site substitution in La{_1}Sr{_2}Mn{_{2-x}}Al{_x}O{_7}
Creators: name: Nair, Sunil
name: Banerjee, A.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We report the effect of Al substitution on the Mn site of the bilayered half doped manganite La{_1}Sr{_2}Mn{_2}O{_7}. This substitution dilutes the magnetically active Mn-O-Mn network without introducing an appreciable distortion in the lattice and ionic considerations leads to a predominant reduction of Mn{^{4+}} with increasing Al. The rate of fall of the long range antiferromagnetic transition temperature as a function of substitution is seen to match well with established quasi 2D Heisenberg systems indicating that the nature of magnetic interactions in this quasi 2-D system is of the short range Heisenberg type. The magnetic contribution of the specific heat estimated using Fisher's relation could be fitted with a function incorporating the presence of a gapped Fermi surface appropriate for this type of systems. The resistivity was seen to increase as a function of substitution due to the weakening of the double exchange within the ferromagnetic layers of these A type of antiferromagnets and justifiably, in the paramagnetic region the data could be fitted to Mott's equation for the variable range hopping of polarons in 2 dimensions.
description: 5 post script figures
Bernoulli Sieve
Creators: name: Gnedin, Alexander
Publisher: name: arXiv
Year: 2003
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60G09, 60C05

description: Bernoulli sieve is a recursive construction of a random composition (ordered partition) of integer $n$. This composition can be induced by sampling from a random discrete distribution which has frequencies equal to the sizes of component intervals of a stick-breaking interval partition of $[0,1]$. We exploit Markov property of the composition and its renewal representation to derive asymptotics of the moments and to prove a central limit theorem for the number of parts.
description: 16 pages
Relativistic and electron-correlation effects in static dipole polarizabilities for group 12 elements
Creators: name: Cheng, YingXing
Publisher: name: arXiv
Year: 2024
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: In this study, we report a comprehensive calculation of static dipole polarizabilities for group 12 elements using the finite-field approach in conjunction with the relativistic coupled-cluster method, including single, double, and perturbative triple excitations. Relativistic effects are systematically explored, encompassing scalar-relativistic, spin-orbit coupling (SOC), and full Dirac-Coulomb contributions. The recommended polarizability values, with uncertainties, are $37.95 \pm 0.77$ a.u. for Zn, $45.68 \pm 1.21$ a.u. for Cd, $34.04 \pm 0.68$ a.u. for Hg, and $27.92 \pm 0.28$ a.u. for Cn. These results are in excellent agreement with the 2018 compilation of static dipole polarizabilities [Mol. Phys. \textbf{117}, 1200 (2019)] and reduce uncertainties for Cd and Cn. Our analysis demonstrates that scalar-relativistic effects dominate the relativistic corrections, with SOC contributions found to be negligible. The role of electron correlation is examined across all relativistic regimes, highlighting its critical importance in achieving accurate polarizability predictions.
description: arXiv admin note: text overlap with arXiv:2410.01493
title: Putting Acute Care on the Health Care Agenda: A Study of Discharged Hospital Patients into the Community
Creators: name: Bright, Olga
Publisher: name: The Open University
Year: 1990

description: This research examines acute patients discharged from hospital to the community. The work is based on interviews with forty- five economically active and retired patients discharged from the Milton Keynes District General Hospital. The research shows that the needs of acute care patients are similar to, and often greater than those of the 'priority groups', the elderly, the disabled and the handicapped. In the light of present trends towards early discharge, the research directs attention to the conceptual and the practical problems of current community care policy. The thesis examines the relationship between the hospital, the community health professionals and the family. It shows that there is not only a move away from institutional care but also a move away from professional care to lay care. Current health policies have an implicit expectation that patients should become knowledgeable 'consumers' of health care. The study uses the concept of the convalescent career to explore the transition from the hospital to the community, and recommends a broader interpretation for the provision and distribution of health and social services in the community.
A normalização no campo da Informação em Portugal
Creators: name: Paiva, Lucília
Publisher: name: Cadernos BAD
Year: 2003

description: É apresentado um breve resumo histórico da normalização em Portugal e especificamente da normalização em Documentação, descrevendo-se, em seguida, a estrutura e funcionamento da Comissão Técnica de Documentação - CT7. Fazem-se algumas referências à maneira como as normas na informação estão a ser aplicadas e aos factores que contribuem para o seu inadequado uso. Apresenta-se, finalmente, um conjunto de medidas que visam o pleno estabelecimento da normalização da informação em Portugal. Em anexo faz-se uma listagem das Normas Portuguesas de Documentação que foram revistas em 1981-1982 e das novas Normas apresentadas à Direcção-Geral da Qualidade para estudo.
description: Cadernos BAD, N.º 1 (1983)
Out-of-pocket health payments: a catalyst for agricultural productivity growth, but with potentially impoverishing effects in Senegal
Creators: name: Séne, Ligane Massamba
name: Badiane, Ousmane
name: Séne, Ligane Massamba
name: Badiane, Ousmane
Publisher: name: Unknown
Year: 1703
Subjects: subject: Agricultural and Food Policy
subject: Health Economics and Policy
subject: Agricultural productivity
subject: Health Poverty
subject: Out-of-pocket health expenditures
subject: Senegal

description: This paper analyzes the relationship between health expenditures and productivity in Senegal by using a dynamic recursive computable general equilibrium (CGE) model that has been run from 2011 to 2020. This model links the growth rate of agricultural productivity to household investment in health goods taking into account catastrophic health payments considered as barriers to achieve maximal productivity gains. In fact, despite being a potential catalyst for productivity, out-of-pocket health expenditures can be a burden after a critical threshold has been crossed and might potentially decrease household resources and place constraints on the productivity-generating process. Results show a positive impact on poverty reduction when the Government reduces the burden on households by financing catastrophic payment overshoots. Lower health costs also appear to improve households’ well-being, especially in the case of agricultural households. These results suggest the need for policies which will reduce the health system’s reliance on out-of-pocket payments and demonstrate that health programs should reach the most vulnerable households. The effectiveness of poverty-orientated interventions can be increased by targeting households incurring catastrophic health expenditures.
Cost-effectiveness of a novel urethral catheter safety device in preventing catheterization injuries in the UK
Creators: name: Croghan, Stefanie M
name: Malcolm, Robert
name: Flood, Hugh D
name: Mealing, Stuart
name: Avey, Brooke
name: Leonard, Gavin
name: Wright, James
name: F. Davis, Niall
name: WALSH, MICHAEL
Publisher: name: University of Limerick
Year: 2024
Subjects: classificationCode: 40
subject: Engineering
classificationCode: 42
subject: Health sciences
subject: FOS: Health sciences

description: Aims: Intraurethral catheter balloon inflation is a substantial contributor to significant catheter-related urethral injury. A novel safety valve has been designed to prevent these balloon-inflation injuries. The purpose of this evaluation was to assess the cost-effectiveness of urethral catheterisation with the safety valve added to a Foley catheter versus the current standard of care (Foley catheter alone). Materials and methods: The analysis was conducted from the UK public payer perspective on a hypothetical cohort of adults requiring transurethral catheterization. A decision tree was used to capture outcomes in the first 30days following transurethral catheterization, followed by a Markov model to estimate outcomes over a person’s remaining lifetime. Clinical outcomes included catheter balloon injuries [CBIs], associated short-term complications, urethral stricture disease, life years and QALYs. Health-economic outcomes included total costs, incremental cost-effectiveness ratio, net monetary benefit (NMB) and net health benefit. Results: Over a person’s lifetime, the safety valve was predicted to reduce CBIs by 0.04 per person and CBI-related short-term complications by 0.03 per person, and nearly halve total costs. The safety valve was dominant, resulting in 0.02 QALYs gained and relative cost savings of £93.19 per person. Probabilistic sensitivity analysis indicated that the safety valve would be cost-saving in 97% of simulations run versus standard of care. Conclusions: The addition of a novel safety valve aiming to prevent CBIs during transurethral catheterization to current standard of care was estimated to bring both clinical benefits and cost savings.
Adoption of agricultural innovations in risky environment: the case of corn producers in the west of Cameroon
Creators: name: Fosso, Prisca Koncy
name: Tsafack Nanfosso, Roger
name: Fosso, Prisca Koncy
name: Tsafack Nanfosso, Roger
Publisher: name: Unknown
Year: 404
Subjects: subject: Agricultural Finance
subject: Productivity Analysis
subject: Adoption of agricultural innovations
subject: Cameroon
subject: Multivariate probit model
subject: Risks

description: The use of modern agricultural inputs has been cited as a major factor for increasing productivity in most sub-Saharan African countries. A wide range of variables influence the adoption of such inputs. It is important to identify these variables in order to ensure the implementation of more effective programmes to promote the use of modern inputs. This article examines the determinants of adoption of three new agricultural technologies (improved maize seeds, inorganic fertiliser and pesticide) by corn producers in the west of Cameroon. Rather than the univariate probit model which is commonly used, the multivariate probit model is employed to take account of the correlation between the disturbances of the three adoption models. The results indicate that the decision to adopt agricultural innovations is significantly influenced by farmers’ education, income and risk perception as well as farm size. Therefore, policies aimed at setting up sustainable risk management markets, increasing the level of education of farmers and their access to credit could greatly promote the adoption of agricultural innovations by farmers of Cameroon in general and in the western region in particular.
Informação e informações
Creators: name: Cunha, Isabel Ferin
Publisher: name: Cadernos BAD
Year: 2003

description: O conceito de informação, no sentido de informação noticiosa e de informação científica, é abreviadamente analisado. Alguns aspectos da sua produção e transferência, bem como a necessidade de uma política de informação são ainda focados.
description: Cadernos BAD, N.º 1 (1983)