cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Immunolocalization of dystrophin and neurofilament protein in muscle spindles of normal, mdx-dystrophic, and denervated mice
Creators: name: Nahirney, Patrick Charles
Publisher: name: University of British Columbia
Year: 2008

description: Dystrophin is a high molecular weight protein localized under the sarcolemma of normal extrafusal muscle fibers but absent in skeletal muscles of Duchenne muscular dystrophy patients and in the mdx mouse. Muscle spindles in the soleus of 32-week-old normal and age-matched mdx mice were examined by immunocytochemical methods to determine the localization of dystrophin in polar and equatorial regions of the intrafusal fibers. Spindles were serially-sectioned in transverse and longitudinal planes, and they were double-labelled with an antibody to dystrophin and with a 200 kD neurofilament protein antibody which revealed their sensory innervation. By fluorescence microscopy, intrafusal fibers in the soleus of mdx mice were deficient in dystrophin throughout their lengths, whereas their sensory nerve-terminals stained intensely with the nerve-specific antibody and appeared unaltered in dystrophy. In the normal soleus, polar regions of bag and chain fibers exhibited a peripheral rim of sarcolemmal staining equivalent to that seen in the neighboring extrafusal fibers. Dystrophin labelling in equatorial regions of normal intrafusal fibers, however, showed dystrophin-deficient segments alternating in a spiral fashion with positive-staining domains along the sarcolemma. Double-labelling for dystrophin and neurofilament protein showed that these dystrophin-deficient sites were subjacent to the annulospiral sensory-nerve wrappings terminating on the intrafusal fibers. Additionally, it was found that chronic denervation of muscle spindles in normal mice did not affect the expression of dystrophin either at these sites or at the non-sensory regions of the sarcolemma. The results of this study suggest that dystrophin is not an integral part of the subsynaptic sensory-membrane in equatorial regions of normal intrafusal fibers, and, that the neurotrophic effect of sensory innervation is not the principle cause of this unique arrangement of dystrophin in equatorial regions. In dystrophy, intrafusal fibers display the same primary defect in muscular dystrophy as seen in the extrafusal fibers. However, because of their small-diameters, capsular investment, and relatively low tension outputs, dystrophic intrafusal fibers may be less prone to the sarcolemmal membrane disruption that is characteristic of extrafusal fibers in this disorder.
periódico "O Malho" no Repositório Rui Barbosa de Informações Culturais (RUBI)
Creators: name: Guia, Marx Paulo Vargas Da
name: Lima, Thomás Augusto Rangel De
name: Medeiros, Ana Ligia
name: Trézze, Luziana Jordão Lessa
Publisher: name: Cadernos BAD
Year: 2022

description: O periódico O Malho, fundado por Crispim do Amaral e Luís Bartolomeu, integra uma das coleções do Repositório Rui Barbosa de Informações Culturais - RUBI, criado em 2016 pela Fundação Casa de Rui Barbosa. Foi uma das principais revistas ilustradas publicadas semanalmente no Rio de Janeiro entre os anos de 1902 a 1954. As revistas ilustradas trazem uma característica marcante da imprensa carioca e nacional da primeira metade do século XX. Eram periódicos que usavam imagens (na forma de caricaturas, ilustrações, gravuras e fotografias) e humor para comentar e discutir diferentes aspectos da sociedade, sendo de interesse dos cidadãos o acesso a esse acervo, e também dos pesquisadores que o utilizam como fonte ou objeto da história política, cultural, das ideias, da imprensa. Este trabalho buscou implementar formas de garantir uma melhor identificação, busca e utilização da coleção O Malho pelos usuários do RUBI.
description: Cadernos BAD, N.º 1-2 (2021): Atas da 12ª Conferência Luso-Brasileira de Ciência Aberta (ConfOA)
Gas-liquid phase separation in oppositely charged colloids: stability and interfacial tension
Creators: name: Fortini, Andrea
name: Hynninen, Antti-Pekka
name: Dijkstra, Marjolein
Publisher: name: arXiv
Year: 2006
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study the phase behavior and the interfacial tension of the screened Coulomb (Yukawa) restricted primitive model (YRPM) of oppositely charged hard spheres with diameter s using Monte Carlo simulations. We determine the gas-liquid and gas-solid phase transition using free energy calculations and grand-canonical Monte Carlo simulations for varying inverse Debye screening length k. We find that the gas-liquid phase separation is stable for k s <= 4, and that the critical temperature decreases upon increasing the screening of the interaction (decreasing the range of the interaction). In addition, we determine the gas-liquid interfacial tension using grand-canonical Monte Carlo simulations. The interfacial tension decreases upon increasing the range of the interaction. In particular, we find that simple scaling can be used to relate the interfacial tension of the YRPM to that of the restricted primitive model, where particles interact with bare Coulomb interactions.
description: 17 pages, 6 Figures, accepted for publication in J. Chem. Phys
Phase-field model for a weakly compressible soft layered material: morphological transitions on smectic-isotropic interfaces
Creators: name: Vitral, Eduardo
name: Leo, Perry H.
name: Viñals, Jorge
Publisher: name: arXiv
Year: 2021
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: A coupled phase-field and hydrodynamic model is introduced to describe a two-phase, weakly compressible smectic (layered phase) in contact with an isotropic fluid of different density. A non-conserved smectic order parameter is coupled to a conserved mass density in order to accommodate non-solenoidal flows near the smectic-isotropic boundary arising from density contrast between the two phases. The model aims to describe morphological transitions in smectic thin films under heat treatment, in which arrays of focal conic defects lead to conical pyramids and concentric rings through curvature dependent evaporation of smectic layers. The model leads to an extended thermodynamic relation at a curved surface that includes its Gaussian curvature, non-classical stresses at the boundary and flows arising from density gradients. The temporal evolution given by the model conserves the overall mass of the liquid crystal while still allowing for the modulated smectic structure to grow or shrink. A numerical solution of the governing equations reveals that pyramidal domains are sculpted at the center of focal conics upon a temperature increase, which display tangential flows at their surface. Other cases investigated include the possible coalescence of two cylindrical stacks of smectic layers, formation of droplets, and the interactions between focal conic domains through flow.
description: Minor corrections
Relationship between learning approach and germane cognitive load in medical physiology curriculum for first year medical students
Creators: name: Ismail-Khan, Mohammed
name: Sanghamitra Panda
name: Kumari-Nitta, Ratna
Publisher: name: F1000 Research Limited
Year: 2024

description: Abstract



Background: Physiology is taught to undergraduate students using a systems approach in Schiro’s Scholar-Academic curricular framework. Germane cognitive load (GCL) is a psychological construct representing mental resources dedicated to understanding a topic. It fosters deep learning by forming cognitive schemata responsible for knowledge retention, retrieval, and application. The Learning Approach (LA) is also a psychological construct that describes learning and engagement based on motivation, dichotomously classified as surface and deep LA. We aimed to evaluate if any relationship exists between LA and GCL.



Summary of Work: The study was conducted on first-year medical students at Shadan Institute of Medical Sciences, Teaching Hospital and Research Centre, Hyderabad, India. LA was evaluated using Bigg’s R-SPQ-2F Questionnaire, a reliable and valid tool for classifying LA as surface or deep. GCL was measured using Klepsch’s Questionnaire, also proven reliable and valid. As GCL is session-specific, the average GCL from 15 diverse teaching sessions was used for analysis, representing GCL generation across varied teaching conditions.



Summary of Results: Data from 71 students was analysed, and only 20% were found to have predominant deep LA. Pearson correlation shows a significant positive correlation between GCL and the adoption of deep LA (r = 0.774, p <0.001). The correlation is significant, with a decrease in GCL upon greater adoption of surface LA (correlation coefficient of -0.71, p<0.001). 



Discussion and Conclusions: Though the instructional design determines the GCL in a session, learners with a deeper LA seem to dedicate a higher percentage of their cognitive abilities to understanding a topic. The Educational Environment is known to foster deep LA; hence, applying cognitivist psychologies in medical education within social settings rather than solely from an individual perspective is essential.



Implication for Practice and Future Research: GCL, as a cognitive construct, represents understanding, which is also predicted by the mental construct of deep LA. Since adopting a deep LA fosters a higher perception of GCL, we educators need to encourage deep LA in medical students to achieve optimal learning outcomes. This requires understanding the educational environmental factors influencing LA adoption and considering a shift from individual to social cognitivism to foster deeper learning.
On the Detection of High Redshift Black Holes with ALMA through CO and H2 Emission
Creators: name: Spaans, M.
name: Meijerink, R
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Many present-day galaxies are known to harbor supermassive, >10^6 Mo, black holes. These central black holes must have grown through accretion from less massive seeds in the early universe. The molecules CO and H2 can be used to trace this young population of accreting massive black holes through the X-ray irradiation of ambient gas. The X-rays drive a low-metallicity ion-molecule chemistry that leads to the formation and excitation of CO and H2 in 10015 and H2 S(0) & S(1) emission is found that allows one to constrain ambient conditions. Comparable line strengths cannot be produced by FUV or cosmic ray irradiation. Weak, but perhaps detectable, H3+ (2,2) - (1,1) emission is found and discussed. The models predict that black hole masses larger than 10^5 Mo can be detected with ALMA, over a redshift range of 5-20, provided that the black holes radiate close to Eddington.
description: 12 pages, 3 figures, ApJL accepted; minor typographical changes
Tail probabilities for infinite series of regularly varying random vectors
Creators: name: Hult, Henrik
name: Samorodnitsky, Gennady
Publisher: name: arXiv
Year: 2007
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics

description: A random vector $X$ with representation $X=\sum_{j\geq0}A_jZ_j$ is considered. Here, $(Z_j)$ is a sequence of independent and identically distributed random vectors and $(A_j)$ is a sequence of random matrices, `predictable' with respect to the sequence $(Z_j)$. The distribution of $Z_1$ is assumed to be multivariate regular varying. Moment conditions on the matrices $(A_j)$ are determined under which the distribution of $X$ is regularly varying and, in fact, `inherits' its regular variation from that of the $(Z_j)$'s. We compute the associated limiting measure. Examples include linear processes, random coefficient linear processes such as stochastic recurrence equations, random sums and stochastic integrals.
description: Published in at http://dx.doi.org/10.3150/08-BEJ125 the Bernoulli (http://isi.cbs.nl/bernoulli/) by the International Statistical Institute/Bernoulli Society (http://isi.cbs.nl/BS/bshome.htm)
Transition distribution amplitudes and hard exclusive reactions with baryon number transfer
Creators: name: Pire, B.
name: Semenov-Tian-Shansky, K.
name: Szymanowski, L.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Baryon-to-meson and baryon-to-photon transition distribution amplitudes (TDAs) arise in the collinear factorized description of a class of hard exclusive reactions characterized by the exchange of a non-zero baryon number in the cross channel. These TDAs extend the concepts of generalized parton distributions (GPDs) and baryon distribution amplitudes (DAs). In this review, we discuss the general properties and physical interpretation of baryon-to-meson and baryon-to-photon TDAs. We argue that these non-perturbative objects are a convenient complementary tool to explore the structure of baryons at the partonic level. We present an overview of hard exclusive reactions admitting a description in terms of TDAs. We discuss the first signals from hard exclusive backward meson electroproduction at JLab with the 6 GeV electron beam and explore further experimental opportunities to access TDAs at JLab@12 GeV, PANDA, J-PARC and EIC.
description: 172 pages, 54 figures, 3 tables. Revised version published with Physics Reports
Generalized Lattice Boltzmann Method with multi-range pseudo-potential
Creators: name: Sbragaglia, M.
name: Benzi, R.
name: Biferale, L.
name: Succi, S.
name: Sugiyama, K.
name: Toschi, F.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Cellular Automata and Lattice Gases (nlin.CG)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Chaotic Dynamics (nlin.CD)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: The physical behaviour of a class of mesoscopic models for multiphase flows is analyzed in details near interfaces. In particular, an extended pseudo-potential method is developed, which permits to tune the equation of state and surface tension independently of each other. The spurious velocity contributions of this extended model are shown to vanish in the limit of high grid refinement and/or high order isotropy. Higher order schemes to implement self-consistent forcings are rigorously computed for 2d and 3d models. The extended scenario developed in this work clarifies the theoretical foundations of the Shan-Chen methodology for the lattice Boltzmann method and enhances its applicability and flexibility to the simulation of multiphase flows to density ratios up to O(100).
Orbital angular momentum and current-induced motion of a Skyrmion-textured domain wall in a ferromagnetic nanotube
Creators: name: Lee, Seungho
name: Kim, Se Kwon
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We theoretically study the current-induced dynamics of a domain wall in a ferromagnetic nanotube by developing a theory for the orbital angular momentum of a domain wall and the current-induced torque on it. Specifically, a domain wall with nontrivial magnetization winding along the circumference is shown to possess finite orbital angular momentum, which is proportional to the product of its Skyrmion charge and position, and the current is shown to exert a torque changing the orbital angular momentum of the domain wall and thereby drives it. The current-induced torque is interpreted as the transfer of orbital angular momentum from electrons to the domain wall, which occurs due to the emergent magnetic field associated with the Skyrmion charge. Our results reveal a hitherto unrecognized utility of the orbital degree of freedom of magnetic solitons.
description: 5 pages, 3 figures, 2 pages of supplemental material
The Distance to the Galactic Center Derived From Infrared Photometry of Bulge Red Clump Stars
Creators: name: Nishiyama, Shogo
name: Nagata, Tetsuya
name: Sato, Shuji
name: Kato, Daisuke
name: Nagayama, Takahiro
name: Kusakabe, Nobuhiko
name: Matsunaga, Noriyuki
name: Naoi, Takahiro
name: Sugitani, Koji
name: Tamura, Motohide
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: On the basis of the near infrared observations of bulge red clump stars near the Galactic center, we have determined the galactocentric distance to be R_0 = 7.52 +- 0.10 (stat) +- 0.35 (sys) kpc. We observed the red clump stars at |l| < 1.0 deg and 0.7 deg < |b| < 1.0 deg with the IRSF 1.4 m telescope and the SIRIUS camera in the H and Ks bands. After extinction and population corrections, we obtained (m - M)_0 = 14.38 +- 0.03 (stat) +- 0.10 (sys). The statistical error is dominated by the uncertainty of the intrinsic local red clump stars' luminosity. The systematic error is estimated to be +- 0.10 including uncertainties in extinction and population correction, zero-point of photometry, and the fitting of the luminosity function of the red clump stars. Our result, R_0 = 7.52 kpc, is in excellent agreement with the distance determined geometrically with the star orbiting the massive black hole in the Galactic center. The recent result based on the spatial distribution of globular clusters is also consistent with our result. In addition, our study exhibits that the distance determination to the Galactic center with the red clump stars, even if the error of the population correction is taken into account, can achieve an uncertainty of about 5%, which is almost the same level as that in recent geometrical determinations.
description: 14 pages, 4 figures, accepted by ApJ
The impact of feedback and reflection on learning outcomes in clinical year medical students
Creators: name: Parichat Niyomthong
name: Jaranchai  Seesod
name: Phimrada  Tantiwiriyachotikan
Publisher: name: F1000 Research Limited
Year: 2024

description: Background: Feedback and reflection are the two essential and powerful tools to improve and strengthen learning outcomes in medical students. Nevertheless, many medical schools in Thailand had less awareness and ignoring the potential benefit of feedback and reflection to include them in the curriculum. This study aimed to explore the medical students’ experiences in feedback and reflection including leaning outcomes. The secondary aim was to promote the effective feedback and reflection culture in Thai medical schools.

Summary of work: Descriptive cross-sectional study was conducted in three medical education centers (Phrae, Pichit and Tak), Naresuan University. The questionnaires were administered to clinical years medical students (year 4-6) to assess their experiences, perception and understanding of feedback and reflection. We also explored leaning outcomes after they participated in feedback and reflection process.

Summary of results: All 164 medical students participated. 85.4% of them had experiences in feedback and reflection. Top three department were Medicine, Obstetrics & Gynecology and Pediatrics respectively. 72.9% of them had two ways feedback and reflection by learners and teachers. 70.7% had delayed feedback and reflection while 63.6% had immediate feedback and reflection. However, 71.4 % preferred immediate feedback and reflection than delayed. 93.9 % felt worried about feedback and reflection.Students in experience group had more confidence to perform feedback and reflection and thought that these were useful in educational system than non-experience group with statistically significant (p-value=0.04,0.001). The positive outcomes of feedback and reflection in students who had experiences were discover pitfall for better development (57.9%), learning development (55.7%), understanding between learner and teacher (49.3%) and more confidence in learning content (30.0%). While the negative outcomes were low self-esteem and lost confidence (37.1%), embarrassed friends and colleagues (35.7%), regret and anxiety (16.4%) and negative feeling to teacher (12.1%).

Discussions and conclusion: Most clinical year medical students in this study had experiences in feedback and reflection. Many students had positive outcomes of feedback and reflection to enhance and develop learning. Nevertheless, some students had negative outcomes and need student support system to assist them.

Take home messages: Effective feedback and reflection are necessary tools to enhance leaning outcomes and should be promoted to integrate in the medical school curriculum.
Implantação do Portal Brasileiro de Ciência Aberta no âmbito do Instituto Brasileiro de Informação em Ciência e Tecnologia (Ibict)
Creators: name: Dos Santos Nahuz, Luciana
name: De Freitas Campos, Fhillipe
name: Vieira Faria, Marcos Antônio
name: Dos Santos Ribeiro, Danielly
Publisher: name: Cadernos BAD
Year: 2022

description: A Ciência tem sido tema de inúmeras discussões e transformações, e hoje pode-se afirmar que a maneira de fazer e comunicar Ciência não é mais a mesma desde quando esta foi fundada. Entende-se que a Ciência Aberta é uma realidade que afeta todo o ciclo da pesquisa. Com isso, o Instituto Brasileiro de Informação em Ciência e Tecnologia (Ibict), unidade de pesquisa brasileira vinculada ao Ministério da Ciência, Tecnologia e Inovações (MCTI), deu início à implementação do “Portal Brasileiro de Ciência Aberta”, iniciativa que tem por objetivo reunir e disseminar informações referentes ao Acesso e à Ciência Aberta para os mais diversos perfis de usuários. Dada a necessidade de prover diversas informações e a diferentes públicos, fez-se necessária a definição de uma arquitetura informacional com vistas a atender essa diversidade de perfis. Os conteúdos referentes aos sistemas operados pela Coordenação de Análise, Tratamento e Disseminação da Informação Científica (CODIC) do Ibict foram elaborados a partir da experiência adquirida ao longo dos anos (atendimentos presenciais e por telefone e/ou e-mail) e os conteúdos transversais ao Acesso e Ciência Aberta foram compilados em diferentes fontes informacionais.
description: Cadernos BAD, N.º 1-2 (2021): Atas da 12ª Conferência Luso-Brasileira de Ciência Aberta (ConfOA)
Additional file 1 of Brain–heart interaction after acute ischemic stroke
Creators: name: Battaglini, Denise
name: Robba, Chiara
name: Lopes da Silva, Adriana
name: dos Santos Samary, Cynthia
name: Leme Silva, Pedro
name: Dal Pizzol, Felipe
name: Pelosi, Paolo
name: Rocco, Patricia Rieken Macedo
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Neuroscience
subject: Physiology
subject: Pharmacology
subject: Biotechnology
subject: Biological Sciences not elsewhere classified
subject: Information Systems not elsewhere classified
subject: Developmental Biology
subject: Cancer
subject: Mental Health
subject: Hematology

description: Additional file 1: Table S1. Incidence and prevalence of all cardiac dysfunctions after ischemic stroke; Table S2. Cardiac dysfunctions after ischemic stroke and their association with outcome; Table S3. Blood pressure control in ischemic stroke and its association with outcome; Table S4. Troponin T as acute biomarker of cardiovascular complications after ischemic stroke.
Quantifying Ignorance in Individual-Level Causal-Effect Estimates under Hidden Confounding
Creators: name: Jesson, Andrew
name: Mindermann, Sören
name: Gal, Yarin
name: Shalit, Uri
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: We study the problem of learning conditional average treatment effects (CATE) from high-dimensional, observational data with unobserved confounders. Unobserved confounders introduce ignorance -- a level of unidentifiability -- about an individual's response to treatment by inducing bias in CATE estimates. We present a new parametric interval estimator suited for high-dimensional data, that estimates a range of possible CATE values when given a predefined bound on the level of hidden confounding. Further, previous interval estimators do not account for ignorance about the CATE associated with samples that may be underrepresented in the original study, or samples that violate the overlap assumption. Our interval estimator also incorporates model uncertainty so that practitioners can be made aware of out-of-distribution data. We prove that our estimator converges to tight bounds on CATE when there may be unobserved confounding, and assess it using semi-synthetic, high-dimensional datasets.
description: 19 pages, 5 figures, ICML 2021
Stochastic modeling of scientific impact
Creators: name: Simkin, M. V.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Digital Libraries (cs.DL)
subject: Applications (stat.AP)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Recent research has found that select scientists have a disproportional share of highly cited papers. Researchers reasoned that this could not have happened if success in science was random and introduced a hidden parameter Q, or talent, to explain this finding. So, the talented high-Q scientists have many high impact papers. Here I show that an upgrade of an old random citation copying model could also explain this finding. In the new model the probability of citation copying is not the same for all papers but is proportional to the logarithm of the total number of citations to all papers of its author. Numerical simulations of the model give results similar to the empirical findings of the Q-factor article.
description: Accepted for publication by Europhysics Letters
Small deformations of supersymmetric Wilson loops and open spin-chains
Creators: name: Drukker, Nadav
name: Kawamoto, Shoichi
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study insertions of composite operators into Wilson loops in N=4 supersymmetric Yang-Mills theory in four dimensions. The loops follow a circular or straight path and the composite insertions transform in the adjoint representation of the gauge group. This provides a gauge invariant way to define the correlator of non-singlet operators. Since the basic loop preserves an SL(2,R) subgroup of the conformal group, we can assign a conformal dimension to those insertions and calculate the corrections to the classical dimension in perturbation theory. The calculation turns out to be very similar to that of single-trace local operators and may also be expressed in terms of a spin-chain. In this case the spin-chain is open and at one-loop order has Neumann boundary conditions on the type of scalar insertions that we consider. This system is integrable and we write the Bethe ansatz describing it. We compare the spectrum in the limit of large angular momentum both in the dilute gas approximation and the thermodynamic limit to the relevant string solution in the BMN limit and in the full AdS_5 x S^5 metric and find agreement.
description: 40 pages, amstex, 4 figures. V2: Corrected eqn (2.14) and some equations in section 5. Version to appear in JHEP
A Markov theoretic description of stacking disordered aperiodic crystals including ice and opaline silica
Creators: name: Hart, Allen G
name: Hansen, Thomas C
name: Kuhs, Werner F
Publisher: name: arXiv
Year: 2021
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: We review the Markov theoretic description of 1D aperiodic crystals, describing the stacking-faulted crystal polytype as a special case of an aperiodic crystal. Under this description we generalise the centrosymmetric unit cell underlying a topologically centrosymmetric crystal to a reversible Markov chain underlying a reversible aperiodic crystal. We show that for the close-packed structure, almost all stackings are irreversible when the interaction reichweite is greater than 4. Moreover, we present an analytic expression of the scattering cross section of a large class of stacking disordered aperiodic crystals, lacking translational symmetry of their layers, including ice and opaline silica (opal CT). We then relate the observed stackings and their underlying reichweite to the physics of various nucleation and growth processes of disordered ice.
description: 16 pages 5 figures
Crossing of the Phantom Divided Barrier with Lorentz Invariance Violating Fields
Creators: name: Sadatian, S. Davood
name: Nozari, Kourosh
Publisher: name: arXiv
Year: 2008
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study possible crossing of the phantom divided barrier in a Lorentz invariance violating dark energy model. Lorentz invariance violation which is achieved by introducing a vector field in the action, incorporates directly in the dynamics of the scalar field and equation of state. This interesting feature allows us to study phantom divided barrier crossing in the context of Lorentz invariance violation. We show that for suitable choice of parameter space, equation of state can cross phantom divided barrier just by one scalar field and Lorentz violating vector field controls this crossing.
description: 14 pages, 4 figures, Revised and References added, Accepted for Publication in Europhysics Letters
Additional file 2 of Analysis of national surveillance of respiratory pathogens for community-acquired pneumonia in children and adolescents
Creators: name: Roh, Eui Jeong
name: Lee, Mi-Hee
name: Lee, Ji Young
name: Kim, Hyo-Bin
name: Ahn, Young Min
name: Kim, Ja Kyoung
name: Kim, Hyoung Young
name: Jung, Sung-Su
name: Kim, Minji
name: Kang, Eun Kyeong
name: Yang, Eun-Ae
name: Lee, Soo Jin
name: Park, Yang
name: Seo, Ju-Hee
name: Lee, Eun
name: Yang, Eun Seok
name: Park, Kang Seo
name: Shin, Meeyong
name: Chung, Hai Lee
name: Jang, Yoon Young
name: Choi, Bong Seok
name: Jung, Jin-A.
name: Yu, Seung Taek
name: Sung, Myongsoon
name: Kim, Jin Tack
name: Kim, Bong-Seong
name: Hwang, Yoon Ha
name: Sol, In-Suk
name: Yang, Hyeon-Jong
name: Han, Man Yong
name: Yew, Hae Young
name: Cho, Hyoung Min
name: Kim, Hye-young
name: Ahn, Yeon-Hwa
name: Lee, Eun Sil
name: Kim, Dong Hyeok
name: Hwang, Kyujam
name: Jung, Sang Oun
name: Shim, Jung Yeon
name: Chung, Eun Hee
Publisher: name: figshare
Year: 2022
Subjects: subject: Space Science
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Environmental Sciences not elsewhere classified
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Cancer
subject: Science Policy
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Virology
subject: Computational Biology

description: Additional file 2: Table S1. Community acquired pneumonia—Clinical information records. Table S2. The PCR results of identified viral pathogen in the sputum. Table S3. The PCR results of identified bacterial pathogen in the sputum. Table S4. The culture results of identified bacterial pathogen in the sputum. Table S5. The number of bacterial pathogens identified by culture in NPA, sputum, nasopharyngeal swab, etc.
Συγκριτική Ανάλυση Πηγών Ενέργειας
Creators: name: Παπαδοπούλου, Αικατερίνη Κωνσταντίνου
Publisher: name: Aristotle University of Thessaloniki
Year: 2020
Subjects: Ανανεώσιμες
Ενέργεια
Αιολική
Renewable
Energy
Wind Energy

description: Οι ανανεώσιμες πηγές ενέργειας τα τελευταία χρόνια είναι ένα θέμα που αφορά την κοινωνία συνολικά αλλά και το κάθε άτομο ξεχωριστά. Η ένταξή τους θα βοηθήσει έτσι ώστε να προστατευτεί το περιβάλλον από την κλιματική αλλαγή που είναι πλέον πραγματικότητα. Πλέον, η χάραξη μιας πολιτικής συσχετισμένη με την ενέργεια βοηθά και στην πετυχημένη πολιτική αλλά και στα πλεονεκτήματα που προκαλεί στην ανθρωπότητα και στην κοινωνία. Συγκεκριμένα, η αιολική ενέργεια είναι η ναυαρχίδα των μη συμβατικών πηγών ενέργειας αφού είναι άφθονη. Ωστόσο απαιτεί την δημιουργία αιολικών πάρκων σε περιοχές που βοηθούν στην υψηλή παραγωγή ενέργειας και όχι εκεί που η φύση υπολείπεται. Η συγκεκριμένη μελέτη αφορά την θεωρητική θεμελίωση της θεωρίας του χαρτοφυλακίου του Markowitz σε σχέση με την παραγωγή ηλεκτρικής ενέργειας στο πρώτο στάδιο. Παρουσιάζεται εκτενής ανάλυση των μεθόδων που με το πέρασμα του χρόνου έχουν πραγματοποιηθεί ενώ και τα αποτελέσματα που είχαν διάφορες έρευνες συνδεδεμένες με την συγκεκριμένη θεωρία. Στο δεύτερο στάδιο πραγματοποιείται μια οικονομική αξιολόγηση της επένδυσης σε διάφορες περιοχές της Ιταλίας που θα βοηθούν να επιτευχθεί η βέλτιστη απόδοση για τον επενδυτή με τον μικρότερο κίνδυνο. Λέξεις Κλειδιά : Θεωρία Χαρτοφυλακίου, Αιολική Ενέργεια, Απόδοση, Κίνδυνος
description: Renewable energy in recent years has been a matter for society as a whole but for each individual. Their integration will help to protect the environment from climate change that is now a real thing. In addition, formulating an energy-related policy helps both successful policy and the benefits it brings to humanity and society. Specifically, wind energy is the flagship of unconventional energy sources as it is abundant. However, it requires the creation of wind farms in areas that help high energy production and not where nature is lacking. This study deals with the theoretical foundation of Markowitz's portfolio theory in relation to electricity production in the first stage. There is an extensive analysis of the methods that have been carried out over time and the results of various studies related to this theory. The second stage is an economic evaluation of the investment in various regions of Italy that will help to achieve the best return for the least risky investor. Keywords: Portfolio Theory, Wind Energy, Performance, Risk
A hidden Markov model for describing turbostratic disorder applied to carbon blacks and graphene
Creators: name: Hart, A G
name: Hansen, T C
name: Kuhs, W F
Publisher: name: arXiv
Year: 2021
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: We present a mathematical framework to represent turbostratic disorder in materials like carbon blacks, smectites, and twisted $n$-layer graphene. In particular, the set of all possible disordered layers, including rotated, shifted, and curved layers form a stochastic sequence governed by a hidden Markov model. The probability distribution over the set of layer types is treated as an element of a Hilbert space, and using tools of Fourier analysis and functional analysis, we develop expressions for the scattering cross sections of a broad class of disordered materials.
description: 15 pages 3 figures
Ο συνδετικός κρίκος της φορολογικής κατοικίας
Creators: name: Σαλμάνη, Μαρία Αστέριου
Publisher: name: Aristotle University of Thessaloniki
Year: 2020
Subjects: Φορολογική κατοικία
Παγκόσμιο εισόδημα
Πρότυπο Σύμβασης του Οργανισμού Οικονομικής Συνεργασίας και Ανάπτυξης (ΟΟΣΑ)
Tax residence
Global income
Convention on the Organization for Economic Co-operation and Development (OECD

description: Η παρούσα διατριβή αναλύει την έννοια της φορολογικής κατοικίας των φυσικών και νομικών προσώπων, όπως αυτή κατοχυρώνεται στο άρθρο 4 του Ν.4172/2013 και καταλήγει στην παρουσίαση των βασικών σημείων του αντίστοιχου άρθρου 4 του Προτύπου Σύμβασης του ΟΟΣΑ. Μέσα από την παρουσία της ελληνικής και διεθνούς έννομης τάξης συμπεραίνουμε ότι η φορολογική κατοικία των φυσικών και νομικών προσώπων, όπως υιοθετήθηκε από την Έλληνα νομοθέτη, βασίζεται στις επιταγές του Προτύπου, το οποίο δεν αποβλέπει στο να επηρεάσει την εθνική νομοθεσία των κρατών μελών –καθώς κάθε κράτος έχει φορολογική αυτοκυριαρχία, ήτοι θεσπίζει αυτόνομα το φορολογικό του σύστημα- αλλά χαράζει τις κατευθυντήριες γραμμές, οι οποίες δίνουν λύση σε περίπτωση που ένα φυσικό ή νομικό πρόσωπο αναγνωρίζεται ως φορολογικός κάτοικος και των δύο συμβαλλόμενων κρατών.
description: This thesis analyzes the tax residence of natural and legal persons, as it is defined in article 4 of Law 4172/2013 and then concludes the presentation of the corresponding article 4 of the OECD Convention Standard. Comparing the Greek and international legislation, we conclude that the tax residence of natural and legal persons, as adopted by the Greek legislator, is based on the instructions of the Standard, which is not intended to affect the national legislation of the Member States - The tax system of the country is self-governed- but provide a solution if a natural or legal person is recognized as a tax resident of both Contracting States. A person other than an individual
Στερεοεκλεκτική σύνθεση γλυκοζιτών από τετρα-Ο-ακυλιωμενα-γλυκόζυλο ιωδίδια μέσω οξειδωτικής ενεργοποίησής τους
Creators: name: Τόσκας, Αλέξανδρος Νικολάου Στεργίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2020
Subjects: Οργανική Σύνθεση
Χημεία
Γλυκοζυλίωση
Organic Synthesis
Chemistry
Glycosylation

description: Η διπλωματική αυτή εργασία είχε ως στόχο την επίτευξη μίας νέας μεθόδου γλυκοζυλίωσης. Η μέθοδος αυτή βασίστηκε στη χρήση γλυκόζυλο ιωδιδίων, τα οποία μέσω οξείδωσης δίνουν πολύ ενεργά ενδιάμεσα. Τα οξειδωτικά που επιλέχθηκαν, σε αντίθεση με τις μέχρι τώρα έρευνες, αποφεύγουν τη χρήση καταλυτών μεταβατικών μετάλλων μειώνοντας έτσι δραστικά την τοξικότητα της σύνθεσης. Βασιζόμενοι σε μελέτες αλκυλοϊωδιδίων έγινε προσπάθεια εύρεσης των βέλτιστων οξειδωτικών συστημάτων που θα ενεργοποιούσαν τους ιωδογλυκοζίτες για πυρηνόφιλη προσβολή. Για τη βελτίωση αυτή ελέγχθηκαν όλοι οι παράγοντες που συμβάλουν όπως η επιλογή των κατάλληλων ομάδων προστασίας του γλυκοζίτη, του κατάλληλου διαλύτη, της απαραίτητης στοιχειομετρίας των αντιδρώντων, της παρουσίας ή όχι φωτός και η συνεισφορά της θερμοκρασίας. Στη συνέχεια έγινε προσπάθεια εφαρμογής της μεθόδου με αλκοόλες και ένα φαινολικό υπόστρωμα για να καθοριστεί η αποτελεσματικότητά της και η πιθανή εφαρμογή της στη συνθετική χημεία.
description: The aim of this thesis was the achievement of a novel glycosylation method. This method was based on the use of glycosyl iodies which give very active intermediates through their oxidation. The oxidative systems which were used, in contrast with previous methods, avoided the use of catalysts of transition metals thus reducing the toxicity of the whole process. Based on studies of alkyliodides we tried to find the best yielding oxidative systems for the oxidation of glycosyliodides for nucleophilic substitution. For this reason, we checked every possible factor which contributes in this reaction, like the choice of the protecting groups of the glucoside, the appropriate solvent, the necessary stoichiometry of the reactants, the effect of the presence of light and the contribution of temperature. Subsequently the method was used for the glycosylation of alcohols and a phenolic substrate in order to determine its efficiency and possible use in synthetic chemistry.
Bringing Home Reform: A Principles-Based Approach to Regulation of Construction for Residents' Safety
Creators: name: BELL, MATTHEW
Publisher: name: Monash University
Year: 2024
Subjects: classificationCode: 489999
subject: Other law and legal studies not elsewhere classified

description: This article contributes to construction regulatory reform programs currently underway in Australia, the United Kingdom (‘UK’) and beyond. It does so by proposing six regulatory design principles in pursuit of a goal of ensuring that dwellings are built so as to keep residents safe. The article critically examines perspectives from regulatory theory, workplace health and safety, and civil aviation to distil the six principles. It concludes by offering an example of how the principles may holistically be applied as a tool for regulatory analysis and design in the context of construction practitioner competence.
Free-viewpoint Indoor Neural Relighting from Multi-view Stereo
Creators: name: Philip, Julien
name: Morgenthaler, Sébastien
name: Gharbi, Michaël
name: Drettakis, George
Publisher: name: arXiv
Year: 2021
Subjects: subject: Graphics (cs.GR)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: We introduce a neural relighting algorithm for captured indoors scenes, that allows interactive free-viewpoint navigation. Our method allows illumination to be changed synthetically, while coherently rendering cast shadows and complex glossy materials. We start with multiple images of the scene and a 3D mesh obtained by multi-view stereo (MVS) reconstruction. We assume that lighting is well-explained as the sum of a view-independent diffuse component and a view-dependent glossy term concentrated around the mirror reflection direction. We design a convolutional network around input feature maps that facilitate learning of an implicit representation of scene materials and illumination, enabling both relighting and free-viewpoint navigation. We generate these input maps by exploiting the best elements of both image-based and physically-based rendering. We sample the input views to estimate diffuse scene irradiance, and compute the new illumination caused by user-specified light sources using path tracing. To facilitate the network's understanding of materials and synthesize plausible glossy reflections, we reproject the views and compute mirror images. We train the network on a synthetic dataset where each scene is also reconstructed with MVS. We show results of our algorithm relighting real indoor scenes and performing free-viewpoint navigation with complex and realistic glossy reflections, which so far remained out of reach for view-synthesis techniques.
Correlates of self-reported help-seeking among adolescents
Creators: name: Muller, Jennifer R.
Publisher: name: University of British Columbia
Year: 2008

description: The present study examined demographic and psychological correlates of help-seeking behavior in a sample of 220 (111 males, 109 females) adolescents, ranging in age from 12 to 19 years (mean age = 15.0 years). Adolescents were administered measures of self-worth, self-consciousness, and locus of control. Adolescents were also asked to report whether or not they had sought help from their mothers, fathers, friends, and professionals for assistance with emotional problems during the past year. Results revealed that, overall, females sought more help than males from mothers, friends, and professionals. Older adolescents sought more help than younger adolescents from friends and professionals. A series of discriminant function analyses were conducted in order to determine the extent to which each of the demographic and psychological variables significantly discriminated between those adolescents who sought help (help-seekers) and those adolescents who did not (nonseekers). Reliable differences were found to significantly discriminate between the demographic and psychological predictors of seeking help for each helping resource. Self-worth was found to be significant in predicting seeking help from friends and professionals. Self-consciousness was found to significantly predict seeking help from father, friends, and professionals. Additionally, locus of control was a significant predictor of seeking help from mother, father and friends. The findings are discussed in terms of their implications for mental health intervention during adolescence.
Bringing Home Reform: A Principles-Based Approach to Regulation of Construction for Residents' Safety
Creators: name: BELL, MATTHEW
Publisher: name: Monash University
Year: 2023
Subjects: classificationCode: 489999
subject: Other law and legal studies not elsewhere classified

description: This article contributes to construction regulatory reform programs currently underway in Australia, the United Kingdom (‘UK’) and beyond. It does so by proposing six regulatory design principles in pursuit of a goal of ensuring that dwellings are built so as to keep residents safe. The article critically examines perspectives from regulatory theory, workplace health and safety, and civil aviation to distil the six principles. It concludes by offering an example of how the principles may holistically be applied as a tool for regulatory analysis and design in the context of construction practitioner competence.
Local output feedback stabilization of a Reaction-Diffusion equation with saturated actuation
Creators: name: Lhachemi, Hugo
name: Prieur, Christophe
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optimization and Control (math.OC)
subject: Systems and Control (eess.SY)
subject: FOS: Mathematics
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: This paper is concerned with the output feedback stabilization of a reaction-diffusion equation by means of bounded control inputs in the presence of saturations. Using a finite-dimensional controller composed of an observer coupled with a finite-dimensional state-feedback, we derive a set of conditions ensuring the stability of the closed-loop plant while estimating the associated domain of attraction in the presence of saturations. This set of conditions is shown to be always feasible for an order of the observer selected large enough. The stability analysis relies on Lyapunov functionals along with a generalized sector condition classically used to study the stability of linear finite-dimensional plants in the presence of saturations.
description: in press
Εμπειρίες και βιώματα γυναικών προσφύγων από τη Μικρά Ασία: Οικογένεια, εκπαίδευση, κοινωνία
Creators: name: Τσιακίρη, Ειρήνη Νικολάου
Publisher: name: Aristotle University of Thessaloniki
Year: 2020
Subjects: πρόσφυγες
γυναίκες
προφορική ιστορία
refugees
women
oral history

description: Αντικείμενο της παρούσας εργασίας είναι η διερεύνηση των εμπειριών και βιωμάτων των γυναικών προσφύγων από τη Μικρά Ασία μετά την Μικρασιατική καταστροφή το 1922, που εγκαταστάθηκαν στη Θεσσαλονίκη. Πιο συγκεκριμένα, η εργασία μελετά τις εμπειρίες που σχετίζονται με την εκπαίδευση, την οικογένεια και την κοινωνία, όπως αυτές αποτυπώνονται στις προφορικές μαρτυρίες που διασώζονται στο Ιστορικό Αρχείο Προσφυγικού Ελληνισμού (Ι.Α.Π.Ε.) του Δήμου Καλαμαριάς Θεσσαλονίκης. Οι μαρτυρίες, σε μορφή απομαγνητοφωνημένων συνεντεύξεων, μελετώνται με την Ερμηνευτική Φαινομενολογική Ανάλυση (ΕΦΑ), προκειμένου να διαπιστωθεί πως οι ίδιες οι αφηγήτριες – πρόσφυγες βίωσαν τη διαφορετική καθημερινότητα στον τόπο καταγωγής τους και στον τόπο εγκατάστασης και τις επιπτώσεις που ο βίαιος ξεριζωμός είχε στις συνθήκες ζωής τους. Το υλικό της παρούσας εργασίας μελετάται υπό το πρίσμα της σημασίας της προφορικής και τοπικής ιστορίας, που τα τελευταία χρόνια έχει αναπτυχθεί ιδιαίτερα, καθώς αναδεικνύει μια διαφορετική πλευρά της ιστορίας, που άλλοτε συμπλέει και άλλοτε αντικρούεται με την επίσημη, αλλά και της σημασία της μνήμης αλλά και του τραύματος, στη διαμόρφωσή της.
description: The purpose of this paper is to investigate and capture the experiences and life stories of refugee women from Asia Minor who settled in Thessaloniki after 1922, and those which relate to education, family and social life. The archive material used is the Oral Testimony Archive of the Historical Archive of Refugee Hellenism (IAPE) of the Municipality of Kalamaria, in Thessaloniki. The testimonies, in the form of recorded interviews, are studied using the interpretantive phenomenological analysis (IPA) in order to establish how the narrators-refugees themselves experienced the different daily life in their place of origin and the place of installation and how their routine altered as a result of the changes in their living conditions. The testimonies are studied under the importance of the study of Oral and Local History, which has been particularly developed in recent years, and the reasons that make it significant and interesting, as it highlights a different side of History, which sometimes overlaps and sometimes contradicts the Official one, but also to the importance of memory and trauma, in the configuration of Oral History.