cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The application of multivariate statistical methods for understanding food consumer behaviour
Creators: name: Lakner, Zoltan
name: Hajdu, Istvanne
name: Banati, Diana
name: Szabo, Erzsebet
name: Kasza, Gyula
name: Lakner, Zoltan
name: Hajdu, Istvanne
name: Banati, Diana
name: Szabo, Erzsebet
name: Kasza, Gyula
Publisher: name: Unknown
Year: 2007
Subjects: subject: Research Methods/ Statistical Methods
subject: Categorical principal component analysis
subject: cluster analysis
subject: confirmatory factor analysis
subject: consumers’ segmentation
subject: structural model building

description: Understanding consumer behaviour is a necessary precondition for a targeted communication strategy. The behaviour is a complex phenomenon and research needs to undertake a rigorously apply sophisticated methods. This article entails the combined utilisation of categorical principal component analysis and cluster analysis to determine the major, relatively homogenous consumer groups and this is coupled with confirmatory factor analysis and structural model building to understand consumer behaviour, based on Fishbein and Ajzent’s theoretic model.
A review of traditional Hungarian products’ reputation with a special focus on consumer behaviour
Creators: name: Popovics, Anett
name: Popovics, Anett
Publisher: name: Unknown
Year: 2007
Subjects: subject: Institutional and Behavioral Economics
subject: Research Methods/ Statistical Methods
subject: traditional Hungarian products
subject: consumer survey
subject: reputation
subject: value added

description: The quality of traditional and regional products is essentially determined by geography, history and culture. Being protected by a distinctive quality label (based on the geographical origin, traditions and special features) may enhance traditional Hungarian and regional products’ competitiveness. Based on our survey’s questionnaire results (N = 425) (basic statistics, factor and cluster analysis) it can be proved that consumers are able to identify and appreciate Hungarian products. They also highly value traditional quality.
Radiation Reaction near the Classical Limit in Aligned Crystals
Creators: name: Nielsen, Christian F.
name: Justesen, Jens B.
name: Sørensen, Allan H.
name: Uggerhøj, Ulrik I
name: Holtzapple, Robert
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: An accelerated charged particle emits electromagnetic radiation. If the driving force is sufficiently strong, the radiated energy becomes comparable to the kinetic energy of the particle and the back-action of the emitted radiation (radiation reaction) significantly alters the dynamics of the particle. The Landau-Lifshitz (LL) equation has been proposed as the classical equation to describe the dynamics of a charged particle in a strong electromagnetic field when the effects of radiation reaction are taken into account. Hitherto, the experimental problem in validating the LL equation has been to achieve sufficiently strong fields for radiation reaction to be important without quantum effects being prominent. Notwithstanding, here we provide a quantitative experimental test of the LL equation by measuring the emission spectrum for a wide range of settings for 50 GeV positrons crossing aligned silicon single crystals near the $(110)$ planar channeling regime as well as 40 GeV and 80 GeV electrons traversing aligned diamond single crystals near the $\langle100\rangle$ axial channeling regime. The experimental spectra are in remarkable agreement with predictions based on the LL equation of motion with small quantum corrections for recoil and, in case of electrons, spin and reduced radiation emission, as well as with a more elaborate quantum mechanical model. Our experiment clearly shows the inadequacy of the Lorentz force as the sole agent of force on the particles in the classical limit, due to its absence of radiative energy loss in describing the dynamics of high-energy charged particles in strong electromagnetic fields like those in aligned single crystals.
description: 22 pages, 13 figures, accepted for submission in PRD
Full-Coupled Channel Approach to Doubly Strange $s$-Shell Hypernuclei
Creators: name: Nemura, H.
name: Shinmura, S.
name: Akaishi, Y.
name: Myint, Khin Swe
Publisher: name: arXiv
Year: 2004
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We describe {\it ab initio} calculations of doubly strange, $S=-2$, $s$-shell hypernuclei ($^4_{ΛΛ}$H, $^5_{ΛΛ}$H, $^5_{ΛΛ}$He and $^6_{ΛΛ}$He) as a first attempt to explore the few-body problem of the {\it full}-coupled channel scheme for these systems. The wave function includes $ΛΛ$, $ΛΣ$, $NΞ$ and $ΣΣ$ channels. Minnesota $NN$, D2$^\prime$ $YN$, and simulated $YY$ potentials based on the Nijmegen hard-core model, are used. Bound state solutions of these systems are obtained. We find that a set of phenomenological $B_8B_8$ interactions among the octet baryons in $S=0, -1$ and -2 sectors, which is consistent with all of the available experimental binding energies of $S=0, -1$ and -2 $s$-shell (hyper-)nuclei, can predict a particle stable bound state of $^4_{ΛΛ}$H. For $^5_{ΛΛ}$H and $^5_{ΛΛ}$He, $ΛN-ΣN$ and $ΞN-ΛΣ$ potentials enhance the net $ΛΛ-NΞ$ coupling, and a large $Ξ$ probability is obtained even for a weaker $ΛΛ-NΞ$ potential.
description: 4 pages, 1 figure
General relativistic effects of strong magnetic fields on the gravitational force: a driving engine for bursts of gamma rays in SGRs?
Creators: name: Malheiro, Manuel
name: Ray, Subharthi
name: Cuesta, Herman J. M.
name: Dey, Jishnu
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: In general relativity all forms of energy contribute to gravity and not only just ordinary matter as in Newtonian Physics. This fact can be seen in the modified hydrostatic equilibrium equation for relativistic stars pervaded by magnetic (B) fields. It has an additional term coupled to the matter part as well as an anisotropic term which is purely of magnetic origin. That additional term coming from the pressure changed by the radial component of the diagonal electromagnetic field tensor, weakens the gravitational force when B is strong enough and can even produce an unexpected change in the attractive nature of the force by reversing its sign. In an extreme case, this new general relativistic (GR) effect can even trigger an instability in the star as a consequence of the sudden reversal of the hydrostatic pressure gradient. We suggest here that this GR effect may be the possible central engine driving the transient giant outbursts observed in Soft Gamma-ray Repeaters (SGRs). In small regions of the neutron star (NS), strong magnetic condensation can take place. Beyond a critical limit, these highly magnetised bubbles may explode releasing the trapped energy as a burst of gamma-rays of ~ 10^{36-40} erg.
description: 6 pages, 2 figures
Conformal relativity versus Brans-Dicke and superstring theories
Creators: name: Blaschke, David
name: Dabrowski, Mariusz P.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Conformal relativity theory which is also known as Hoyle-Narlikar theory has recently been given some new interest. It is an extended relativity theory which is invariant with respect to conformal transformations of the metric. In this paper we show how conformal relativity is related to the Brans-Dicke theory and to the low-energy-effective superstring theory. We show that conformal relativity action is equaivalent to a transformed Brans-Dicke action for Brans-Dicke parameter $ω= -3/2$ in contrast to a reduced (graviton-dilaton) low-energy-effective superstring action which corresponds to a Brans-Dicke action with Brans-Dicke parameter $ω= -1$. In fact, Brans-Dicke parameter $ω=-3/2$ gives a border between a standard scalar field evolution and a ghost. We also present basic cosmological solutions of conformal relativity in both Einstein and string frames. The Eintein limit for flat conformal cosmology solutions is unique and it is flat Minkowski space. This requires the scalar field/mass evolution instead of the scale factor evolution in order to explain cosmological redshift. It is interesting that like in ekpyrotic/cyclic models, a possible transition through a singularity in conformal cosmology in the string frame takes place in the weak coupling regime.
description: REVTEX4, 12 pages, an improved version, references added
MoTe2 as a natural hyperbolic material across the visible and the ultraviolet region
Creators: name: Edalati-Boostan, Saeideh
name: Cocchi, Caterina
name: Draxl, Claudia
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Hyperbolic materials are of particular interest for the next generation of photonic and optoelectronic devices. Since artificial metamaterials are intrinsically limited by the size of their nanostructured components, there has been a hunt for natural hyperbolic materials in the last few years. In a first-principles work based on density-functional theory and many-body perturbation theory, we investigate the fundamental dielectric response of MoTe2 in monolayer, bilayer, and bulk form, and find that it is a natural type-II hyperbolic material with low losses between 3 and 6 eV. Going from the monolayer to the bulk, the energy window of hyperbolic dispersion is blue-shifted by a few tenths of an eV. We show that excitonic effects and optical anisotropy play a major role in the hyperbolic behavior of MoTe2. Our results confirm the potential of layered materials as hyperbolic media for opto-electronics, photonics, and nano-imaging applications.
description: 10 pages, 5 figures
Additional file 1 of Touchscreen-based assessment of upper limb kinematics after stroke: Reliability, validity and sensitivity to motor impairment
Creators: name: Goizueta, Sandra
name: Navarro, María Dolores
name: Calvo, Gabriela
name: Campos, Gloria
name: Colomer, Carolina
name: Noé, Enrique
name: Llorens, Roberto
Publisher: name: figshare
Year: 2025
Subjects: subject: Space Science
subject: Medicine
subject: Biotechnology
subject: Chemical Sciences not elsewhere classified
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Science Policy

description: Supplementary Material 1
$WWγ$ production at hadron colliders with NLO QCD+EW corrections and parton shower effects
Creators: name: Zhu, Jian-Wen
name: Zhang, Ren-You
name: Ma, Wen-Gan
name: Yang, Qiang
name: Jiang, Yi
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: $W^+W^-γ$ production in proton-proton collision provides a window to the mechanism of electroweak symmetry breaking and a direct accessment to triple and quartic gauge couplings. Precision study of gauge boson self-interactions may also provide evidence of existence of new physics beyond the Standard Model. In this paper, we study the $W^+W^-γ$ production at the LHC and future higher energy proton-proton colliders at the QCD+EW NLO including parton shower effects. We find that the contributions from the photon-induced (i.e., $qγ$- and $γγ$-initiated) channels are non-negligible since the photon luminosity can be enhanced significantly with the increment of colliding energy, and the large real jet emission QCD and EW corrections can be depressed sufficiently by applying the jet veto event selection scheme. Moreover, we also investigate the theoretical errors arising from the PDF uncertainty and the factorization/renormalization scale dependence.
description: 29 pages, 6 figures
Structural insights on vitamin D receptor and screening of new potent agonist molecules: structure and ligand-based approach
Creators: name: Jayaraj, John Marshal
name: Everlyne Reteti
name: Chandrasekhar Kesavan
name: Karthikeyan Muthusamy
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biophysics
subject: Biochemistry
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Medicine
subject: Cell Biology
subject: Molecular Biology
subject: Pharmacology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Cancer
subject: Computational Biology

description: Vitamin D deficiency is one of the common clinical symptoms of severe chronic kidney disease (CKD) patients. Vitamin D receptor (VDR) is a part of the nuclear receptor family exerts vitamin D activation to maintain calcium/phosphorous homeostasis and bone metabolism. The reduction of VDR activity leads to vitamin D deficiency. In this study, we found three potent agonists for VDR protein on the structure and ligand-based screening methods. In the structure-based method, 792 compounds were screened. A 5-point pharmacophore (one hydrogen bond acceptor, two hydrophobic and aromatic rings (AHHRR)) was developed and used to obtain a predictive 3 D-Quantitative structure-activity relationship (QSAR), model. The acquire R2 and Q2 values are 0.8676 and 0.8523 respectively. Further, E-pharmacophore based screening, molecular docking (binding affinity), Molecular Mechanics-Generalized Born Surface Area (binding free energy), chemical reactivity (Density Functional Theory (DFT) study) and molecular dynamics (protein-ligand stability) analysis were done. Hence, the computational investigations demonstrate that the identified ligands such as TCM_1875, TCM_1874, and TCM_2868 showed promising agonist effect on VDR protein. Further validation and experiments need to be done to confirm the potency of the identified compounds shortly. Communicated by Ramaswamy H. Sarma
Tensor Networks contraction and the Belief Propagation algorithm
Creators: name: Alkabetz, Roy
name: Arad, Itai
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Belief Propagation is a well-studied message-passing algorithm that runs over graphical models and can be used for approximate inference and approximation of local marginals. The resulting approximations are equivalent to the Bethe-Peierls approximation of statistical mechanics. Here we show how this algorithm can be adapted to the world of PEPS tensor networks and used as an approximate contraction scheme. We further show that the resultant approximation is equivalent to the ``mean field'' approximation that is used in the Simple-Update algorithm, thereby showing that the latter is a essentially the Bethe-Peierls approximation. This shows that one of the simplest approximate contraction algorithms for tensor networks is equivalent to one of the simplest schemes for approximating marginals in graphical models in general, and paves the way for using improvements of BP as tensor networks algorithms.
description: RevTeX 4.1, 14 pages, 13 figures. Comments are welcome. Version2: very minor modifications
Quantitative Structure-Activity Relationships of xanthen-3-one and xanthen-1,8-dione derivatives and design of new compounds with enhanced antiproliferative activity on HeLa cervical cancer cells
Creators: name: Zukić, Selma
name: Oljacic, Slavica
name: Nikolic, Katarina
name: Veljović, Elma
name: Špirtović-Halilović, Selma
name: Osmanović, Amar
name: Završnik, Davorka
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: Cancer

description: Xanthene derivatives have become a group of molecules of great importance in discovering of new anticancer drugs. Recent studies of our group performed on xanthen-3-one and xanthen-1,8-dione derivatives have shown their antiproliferative activity on HeLa cervical cell lines. Obtained IC50 values together with calculated molecular descriptors were subjected to Quantitative Structure-Activity Relationship (QSAR) study in order to identify the most relevant molecular features responsible for the observed antiproliferative activity of compounds. Partial Least Square statistical method and the same training and test set were used to obtained statistical parameters for internal and external validation in 2D- and 3D- QSAR study. The obtained QSAR models have shown next results: 2D-QSAR: R2=0.741, Q2=0.792, R2pred=0.875 and 3D-QSAR: R2=0.83, Q2=0.951, R2pred=0.769. Based on the performed QSAR analysis and calculated ADMET properties, novel xanthene derivatives with enhanced antiproliferative activity were designed.
DIAGNÓSTICO E RECOMENDAÇÕES PARA AUMENTO DA COMPETITIVIDADE DA CADEIA PRODUTIVA DA CARNE BOVINA DO ESTADO DE SÃO PAULO
Creators: name: Souza Filho, Hildo Meirelles De
name: Rosa, Fabiano Tito
name: Vinholis, Marcela De Mello Brandao
name: Souza Filho, Hildo Meirelles De
name: Rosa, Fabiano Tito
name: Vinholis, Marcela De Mello Brandao
Publisher: name: Unknown
Year: 2008
Subjects: subject: Livestock Production/Industries
subject: competitividade
subject: carne bovina
subject: São Paulo
subject: competitiveness
subject: bovine meat

description: O Brasil é o principal player do mercado mundial de carne bovina, sendo que São Paulo se destaca como maior exportador e segundo maior produtor nacional do produto. Porém, o Estado vem perdendo market share, pois nos últimos anos a maior parte dos investimentos produtivos têm se concentrado no Centro-Norte do país. Através do levantamento de dados estatísticos, de revisão bibliográfica e de entrevistas com agentes-chave, o presente estudo identificou os principais aspectos críticos da competitividade da cadeia produtiva da carne bovina de São Paulo. Entre os desfavoráveis, destacam-se a reduzida oferta relativa de matéria-prima (animais para abate), a “guerra fiscal” entre Estados (questão tributária) e os custos de produção relativamente elevados. Os favoráveis são, principalmente, as boas condições de infra-estrutura logística e de P&D, a qualidade da mão de obra e a proximidade do principal mercado consumidor. Entre as ações recomendadas para o aumento da competitividade da cadeia produtiva do Estado destacam-se aquelas relacionadas ao incentivo à pesquisa e à difusão de tecnologias, às estratégias de agregação de valor à carne paulista, as certificações e a melhoria dos status/padrão sanitário e, por fim, a revisão do sistema tributário.-------------------------------------------Brazil is the main player in the beef world market. Among Brazilian States, Sao Paulo is in the first position in terms of exportation and second position in terms of production. However, the market-share of the state has been decreasing because larger investments are taking place in the Center-North region of the country. Descriptive statistics, review of the literature and interviews with experts allowed identifying critical aspects of the competitiveness of the beef agri-chain in the State of Sao Paulo. There are unfavorable factors, such as low supply of cattle, fiscal war among states and higher production cost, which prevent competitiveness in the state. However, there are favorable a factors, such as good infrastructure of transport and R&D, trained labor and proximity of the greatest market of the country. Policy recommendations are: support for R&D and technology diffusion; adoption of strategies for value aggregation and certification; improvement of the sanitary control system; and review of the fiscal system.
Additional file 1 of Audit and group feedback in nursing home physician groups: lessons learned from a qualitative study
Creators: name: Yeung, Gary Y. C.
name: Albers, Charlotte A. W.
name: Smalbrugge, Martin
name: de Bruijne, Martine C.
name: Jepma, Patricia
name: Joling, Karlijn J.
Publisher: name: figshare
Year: 2025
Subjects: Medicine
Biological Sciences not elsewhere classified
Science Policy
Mental Health

description: Additional file 1. Supplementary material.
Extending the idea of compressed algebra to arbitrary socle-vectors
Creators: name: Zanello, Fabrizio
Publisher: name: arXiv
Year: 2004
Subjects: subject: Commutative Algebra (math.AC)
subject: FOS: Mathematics
subject: 13E10

description: Fix a codimension $r$ and a socle-vector $s$. Is there an (entry by entry) maximal $h$-vector $h$ among the $h$-vectors of all the (standard graded artinian) algebras having data $(r,s)$? Extending a definition of Iarrobino, if such an $h$ exists, we define as {\it generalized compressed} (GCA, in brief) any algebra having the data $(r,s,h)$. The two main results of this paper are: Theorem A, where we supply a very natural upper-bound $H$ for all the $h$-vectors possible for a given pair $(r,s)$; Theorem B, which asserts that, under certain conditions on the pair $(r,s)$, the upper-bound $H$ of Theorem A is actually achieved by a GCA. In particular, it follows that, when $r=2$, there always exists a GCA (having $h$-vector $H$). Moreover, we show that, in general, the hypotheses of Theorem B cannot be improved, i.e., under weaker conditions on the pair $(r,s)$, the upper-bound $H$ above is not always achieved.
description: 31 pages (18 in the journal). With permission from Elsevier
Additional file 2 of Audit and group feedback in nursing home physician groups: lessons learned from a qualitative study
Creators: name: Yeung, Gary Y. C.
name: Albers, Charlotte A. W.
name: Smalbrugge, Martin
name: de Bruijne, Martine C.
name: Jepma, Patricia
name: Joling, Karlijn J.
Publisher: name: figshare
Year: 2025
Subjects: Medicine
Biological Sciences not elsewhere classified
Science Policy
Mental Health

description: Additional file 2. Coreq Checklist.
INADIMPLÊNCIA NO CRÉDITO AGRÍCOLA – UMA APLICAÇÃO DO MODELO DE REGRESSÃO LOGÍSTICA
Creators: name: Goncalves Junior, Carlos Alberto
name: Bernardino, Kleber Defenti
name: Alves, Alexandre Florindo
name: Parre, Jose Luiz
name: Goncalves Junior, Carlos Alberto
name: Bernardino, Kleber Defenti
name: Alves, Alexandre Florindo
name: Parre, Jose Luiz
Publisher: name: Unknown
Year: 2008
Subjects: subject: Agricultural Finance
subject: Inadimplência
subject: Regressão Logística
subject: Assimetria de Informação
subject: Crédito Rural
subject: Default
subject: logistics regression
subject: information asymmetry
subject: rural credit

description: O objetivo deste artigo é estudar as características dos tomadores e avaliar a possibilidade de prever a inadimplência para a carteira de crédito de uma cooperativa da região Noroeste do Paraná, com dados da safra 2006/2007. O perfil dos tomadores de crédito descrito no trabalho mostrou que os maiores percentuais de inadimplência estão na cultura da laranja e com contratos entre dez e cinqüenta mil reais, porém não apresenta uma característica padrão que permita considerar de antemão os tomadores como adimplentes ou inadimplentes. O modelo de regressão logística construído conseguiu prever de forma eficiente a inadimplência da carteira, porém também considerou inadimplente grande parte dos adimplentes. Isso torna sua utilização economicamente inviável, já que o custo de negar crédito para os adimplentes previstos pelo modelo como inadimplentes é maior que liberar crédito para todos os inadimplentes da carteira. De qualquer forma, os resultados contribuem para a construção de modelos posteriores que, ao incorporar outras variáveis possam melhorar a compreensão do problema de assimetria de informação entre tomadores e fornecedores de crédito.---------------------------------------------The objective of this study is to build a model that can reduce the information asymmetry between the principal and the agent and, thereby, foresee the default in the credit portfolio of a cooperative located in the northwest region of Paraná, with the 2006/2007 harvest data, using the logistics regression model. The credit takers’ profile, described in the present paper, showed that the largest percentage of default was among those who cultivate oranges with contracts of ten to fifty thousand reais, however, there is no such pattern that leads to beforehand considerate those takers as payers or defaulters. The constructed model was efficiently able to anticipate the default of the portfolio, however, it also considered defaulters a great part of the payers, what makes its use economically impracticable, since the cost of denying credit for those payers previously considered by the model as defaulters is higher than liberating credit for all the defaulters of that portfolio. Anyhow, the results contribute to the construction of posterior models that, incorporating other variables, may improve the comprehension about the information asymmetry problem between credit takers and suppliers.
Additional file 3 of Audit and group feedback in nursing home physician groups: lessons learned from a qualitative study
Creators: name: Yeung, Gary Y. C.
name: Albers, Charlotte A. W.
name: Smalbrugge, Martin
name: de Bruijne, Martine C.
name: Jepma, Patricia
name: Joling, Karlijn J.
Publisher: name: figshare
Year: 2025
Subjects: Medicine
Biological Sciences not elsewhere classified
Science Policy
Mental Health

description: Additional file 3. Example Slides Group Feedback Session.
Unpacking the Meaning of “Market Access”
Creators: name: Chamberlin, Jordan
name: Jayne, Thomas S.
name: Chamberlin, Jordan
name: Jayne, Thomas S.
Publisher: name: Unknown
Year: 2011
Subjects: subject: Agricultural and Food Policy
subject: Community/Rural/Urban Development
subject: International Development
subject: Marketing
subject: FOS: Economics and business
subject: Research Methods/ Statistical Methods
subject: market access
subject: remoteness
subject: smallholders
subject: Africa
subject: Kenya

description: Improving farmers’ access to markets is widely recognized as a major development challenge. A review of the literature suggests that indicators of market access may bear little relationship to the specific processes of interest and hence provide misguided evidence of the impacts of improved market access. This paper attempts to “unpack” the dimensions of market access and, in the process, uses farm survey data from Kenya to investigate changes in multiple indicators during the post-liberalization period. Findings show that market access conditions experienced by rural Kenyans exhibit considerable variation across time, space, and indicator type. We suggest ways in which structured hypothesizing and sensitivity analysis may strengthen empirical treatments of market access issues in applied research.
Strategies for an efficient official publicity campaign
Creators: name: Neirotti, Juan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We consider the process of opinion formation, in a society where there is a set of rules, $B$. These rules change over time due to the drift of public opinion, driven in part by publicity campaigns. Public opinion is formed by the integration of the voters' attitudes which can be either conservative (in agreement with $B$) or liberal (in agreement with peer voters). These attitudes are represented in the phase space of the system by stable fixed points. In the present letter we study the properties that an official publicity campaign must have in order to turn the public opinion in favor of $B.$
description: 11 pages, 3 figures
Effect of the Met148Leu mutation on the structure and dynamics of the rusticyanin protein from Acidithiobacillus sp. FJ2
Creators: name: Roghayeh Jafarpour
name: Faezeh Fatemi
name: Eidi, Akram
name: Mehrnejad, Faramarz
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biophysics
subject: Biochemistry
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Molecular Biology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: The rusticyanin protein, a blue monomeric copper protein type-1, is one of the main components in the iron-electron transfer chain of the Acidithiobacillus ferrooxidans, and is the product of the rus gene expression. Herein, first the bacterial DNA of Acidithiobacillus sp. FJ2 was extracted. Then, the rus gene sequence and the sequence amino acid rusticyanin protein were determined. The Met148Leu mutation increased the oxidase activity of the rusticyanin protein, thereby enhancing the efficiency of the bioleaching process by bacteria Acidithiobacillus ferroxidans. Met148Leu mutation was created in the rusticyanin protein, then molecular dynamics (MD) simulations and structural analysis were performed. The MD analysis of the wild-type and mutant protein demonstrated a slight instability in the mutant protein and significant instability in the active site of the mutant protein. The usefulness of this study is the genetic manipulation of the native Acidithiobacillus sp. FJ2 bacterium, which can boost the bioleaching efficiency of the bacterium to some extent, and investigating its effects on the structure of a mutant protein using computational methods. Communicated by Ramaswamy H. Sarma
Analytic theory of difference equations with rational and elliptic coefficients and the Riemann-Hilbert problem
Creators: name: Krichever, I.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Algebraic Geometry (math.AG)
subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: A new approach to the analytic theory of difference equations with rational and elliptic coefficients is proposed. It is based on the construction of canonical meromorphic solutions which are analytical along "thick paths". The concept of such solutions leads to a notion of local monodromies of difference equations. It is shown that in the continuous limit they converge to the monodromy matrices of differential equations. New type of isomonodromic deformations of difference equations with elliptic coefficients changing the periods of elliptic curves is constructed.
description: 38 pages, no figures; typos removed
Investigation of confined placental mosaicism (CPM) at multiple sites in post-delivery placeentas derived through intracytoplasmic sperm injection (ICSI)
Creators: name: Minor, Agata
Publisher: name: University of British Columbia
Year: 2009

description: Background: Many post-intracytoplasmic sperm injection (ICSI) births have been reported. However, concerns have been raised regarding a higher incidence of congenital abnormalities and of low birth weight. The incidence of chromosomal abnormalities in the extra-embryonic tissue lineage, such as the placenta, has not yet been examined. Confined placental mosaicism (CPM) is a chromosomal discrepancy between fetal and placental cells. We set out to investigate whether CPM is an underlying cause of negative pregnancy outcome, including intrauterine growth restriction (IUGR) and congenital abnormalities, and whether it is more prevalent in the post-ICSI population than in the general population. Methods: Fifty one post-delivery placentas were collected from patients who had undergone ICSI. These were divided into two groups depending on pregnancy outcome. Group A (n=41) consisted of placentas from pregnancies with a normal outcome, while group B (n=10) consisted of placentas from pregnancies complicated by IUGR or congenital abnormalities. Three sites of each placenta were sampled for chorionic villi. The villi were digested to obtain trophoblast and chorionic stroma, from which DNA was extracted. The DNA was analyzed by comparative genomic hybridization (CGH) for chromosomal imbalances. Flow cytometry was performed on chorionic stromal cells to determine ploidy. Abnormalities detected by CGH or by flow cytometry were confirmed by fluorescence in situ hybridization (FISH). The prevalence of CPM in the general population was obtained from published studies. Results: Fifty of the fifty one placentas analyzed by CGH had a balanced chromosomal constitution. An abnormality was detected in group B (-10%), in a placenta from a child affected by spina bifida. CGH analysis showed a gain of 7q31>qter and a loss of Xp21>pter in the trophoblast at two sites. Flow cytometry analysis showed tetraploidy in two placentas from group A (-5%). The abnormalities were confirmed by FISH analysis. CPM was not detected in pregnancies affected by IUGR. The incidence of CPM in the total post-ICSI population was -6% (3/51). Conclusion: The incidence of CPM did not differ significantly between the two study groups. We did not find a higher incidence of CPM in the ICSI population compared to the general population.
Cosmic microwave background constraints on the strong equivalence principle
Creators: name: Boucher, V.
name: Gerard, J. -M.
name: Vandergheynst, P.
name: Wiaux, Y.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study the effect of a violation of the strong equivalence principle (SEP) on the cosmic microwave background (CMB). Such a violation would modify the weight of baryons in the primordial gravitational potentials and hence their impact in the establishment of the photon-baryon plasma acoustic oscillations before recombination. This cosmological Nordtvedt effect alters the odd peaks height of the CMB temperature anisotropy power spectrum. A gravitational baryonic mass density of the universe may already be inferred at the first peak scale from the analysis of WMAP data. Experimental constraints on a primordial SEP violation are derived from a comparison with the universe's inertial baryonic mass density measured either in a full analysis of the CMB, or in the framework of the standard big bang nucleosynthesis (BBN).
description: Version accepted for publication in Phys. Rev. D, 8 pages, Revtex 4; discussion of "Experimental constraints" extended, references added, typos corrected
Ruthenium complexes with mono- or bis-heterocyclic chelates: DNA/BSA binding, antioxidant and anticancer studies
Creators: name: Maikoo, Sanam
name: Chakraborty, Abir
name: Nyeleti Vukea
name: Dingle, Laura Margaret Kirkpatrick
name: Samson, William John
name: Jo-Anne De La Mare
name: Edkins, Adrienne Lesley
name: Booysen, Irvin Noel
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biophysics
subject: Biochemistry
subject: Space Science
subject: Medicine
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 20199 Astronomical and Space Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Cancer

description: Deoxyribonucleic acid (DNA) and bovine serum albumin (BSA) binding interactions for a series of ruthenium heterocyclic complexes were monitored using ultraviolet-visible (UV-Vis) spectrophotometry, fluorescence emission spectroscopy and agarose gel electrophoresis. Investigations of the DNA interactions for the metal complexes revealed that they are groove-binders with intrinsic binding constants in the order of 104 – 107 M−1. Electronic spectrophotometric DNA titrations of the bis-heterocyclic metal complexes illustrated hypochromism of their intraligand electronic transitions and the presence of diffuse isosbestic points which are synonymous with homogeneous binding modes. Metal complexes with the mono-heterocyclic chelates also showed alterations in their intraligand transitions and changes in their metal-based electronic transitions which are suggestive of metal coordination to the CT-DNA structure. Using agarose gel electrophoresis assessments, Hoechst DNA binding competition studies corroborate that the metal complexes are DNA groove-binders. Optimal uptake of these metal complexes by BSA was observed based on their optimal apparent association and Stern-Volmer constants (Kapp and KSV > 104 M−1). Radical scavenging studies revealed that the metal complexes have high activities towards the neutralization of NO and DPPH radicals. Data attained from the BSA electronic spectrophotometric titrations for the majority of the metal complexes illustrated distinct hyperchromism accompanied with blue shifts which indicates unwinding of the protein strands. Predominately, the metal complexes showed moderate cytotoxicity against both triple-negative breast cancer and cervical cancer cell lines that was greater than that of 5-fluorouracil. Communicated by Ramaswamy H. Sarma
CENÁRIO ATUAL DA GESTÃO DA QUALIDADE NA CADEIA PRODUTIVA DA CARNE BOVINA: ESTUDO DE CASOS
Creators: name: Scalco, Andrea Rossi
name: Queiroz, Timoteo Ramos
name: Machado, Joao Guilherme De Camargo Ferraz
name: Scalco, Andrea Rossi
name: Queiroz, Timoteo Ramos
name: Machado, Joao Guilherme De Camargo Ferraz
Publisher: name: Unknown
Year: 2008
Subjects: subject: Livestock Production/Industries
subject: cadeia produtiva
subject: carne bovina
subject: gestão da qualidade
subject: supply chain
subject: beef
subject: quality management

description: A obtenção de características da qualidade desejáveis pelo consumidor de carne bovina está ligada ao gerenciamento da qualidade desde as propriedades rurais de pecuária de corte, frigoríficos e supermercados ou açougues. As características da qualidade da carne bovina dependem dos procedimentos adequados desde os produtores até o preparo do produto no consumidor final. Além do mais, os procedimentos adequados de gestão da qualidade corroboram para menores perdas e desperdícios, resultando em um melhor desempenho do negócio. Desta forma, esse artigo tem como objetivo analisar a gestão da qualidade na cadeia produtiva de carne bovina no Escritório de Desenvolvimento Regional (EDR) de Tupã, mais especificamente pretende-se averiguar se pecuaristas e frigoríficos adotam procedimentos adequados que permitam a obtenção de características de qualidade aceitáveis para o consumo da carne bovina e melhoria no desempenho dos negócios. Desconexão com o mercado consumidor, práticas inadequadas de manejo nas propriedades rurais, falta de monitoramento da qualidade do produto no varejo, são alguns dos principais pontos críticos na cadeia produtiva da carne bovina.--------------------------------------------The attainment of desirable quality characteristics for the beef consumer is linked with quality management since the cattle farms, slaughterhouse and supermarkets or butcher. The quality characteristics of the beef depend on adjusted procedures since the beef producers until the preparation of the product for the final consumer. In addition, the adequate procedures of quality management corroborate for lower losses and wasteful, resulting in a better business performance. In this way, this paper aims to analyze the quality management in the beef supply chain in the “Escritório de Desenvolvimento Regional (EDR) de Tupã”, more specifically it aims to discover if cattle farm and slaughterhouse are adopting adequate procedures that allow to the attainment of acceptably quality characteristics for the beef consumption and improvement the business performance. Disconnection with final consumer, inadequate procedures in the farms, lack of quality control of the product in the retail, is any of the main critical points in the beef supply chain.
Holography without holography: How to turn inter-representational into intra-theoretical relations in AdS/CFT
Creators: name: Jaksland, Rasmus
name: Linnemann, Niels S.
Publisher: name: arXiv
Year: 2020
Subjects: subject: History and Philosophy of Physics (physics.hist-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We show by means of the AdS/CFT correspondence in the context of quantum gravity how inter-representational relations - loosely speaking relations among different equivalent representations of one and the same physics - can play out as a tool for intra-theoretical developments and thus boost theory development in the context of discovery. More precisely, we first show that, as a duality, the AdS/CFT correspondence cannot in itself testify to the quantum origin of gravity (though it may be utilized for this purpose). We then establish through two case studies from emergent gravity (Jacobson (2016), Verlinde (2017)) that the holographic AdS/CFT correspondence can, however, still excel as a guiding principle towards the quantum origin of gravity (similar in nature to quantisation).
description: 36 pages, 2 figures
Additional file 4 of Audit and group feedback in nursing home physician groups: lessons learned from a qualitative study
Creators: name: Yeung, Gary Y. C.
name: Albers, Charlotte A. W.
name: Smalbrugge, Martin
name: de Bruijne, Martine C.
name: Jepma, Patricia
name: Joling, Karlijn J.
Publisher: name: figshare
Year: 2025
Subjects: Medicine
Biological Sciences not elsewhere classified
Science Policy
Mental Health

description: Additional file 4. Structured questionnaire for facilitators for the evaluation of the group feedback sessions.
ReviewBookshop.docx
Creators: name: Vila-Santa, Nuno
Publisher: name: figshare
Year: 2020
Subjects: subject: 220206 History and Philosophy of Science (incl. Non-historical Philosophy of Science)
subject: FOS: Philosophy, ethics and religion

description: Book Review on Andrew Pettergree and Arthur der Weduwen "The Bookshop of the World. Making and Trading Books in the Dutch Golden Age"
DESIGUALDADE ENTRE RICOS E POBRES NO ACESSO À EDUCAÇÃO NO BRASIL RURAL E URBANO
Creators: name: Ney, Marlon Gomes
name: Carvalho, Ailton Mota De
name: Souza, Paulo Marcelo De
name: Ney, Marlon Gomes
name: Carvalho, Ailton Mota De
name: Souza, Paulo Marcelo De
Publisher: name: Unknown
Year: 2008
Subjects: subject: Labor and Human Capital
subject: educação
subject: desigualdade de oportunidade
subject: meio rural
subject: meio urbano
subject: education
subject: inequality of opportunity
subject: rural areas
subject: urban areas
subject: Brazil

description: Estudos destacam a existência de um forte efeito da desigualdade de oportunidade educacional na reprodução do elevado nível de desigualdade de renda no Brasil. Neste artigo, é analisada a desigualdade de oportunidade educacional no meio rural e urbano, utilizando um modelo de aquisição de educação que define graficamente a proporção de jovens em domicílios pobres, intermediários e ricos que completou cada nível de escolaridade. Os resultados revelam que as dificuldades para a democratização do acesso ao ensino são bem maiores no meio rural, onde a evasão escolar dos jovens pobres é muito mais rápida no ensino fundamental do que nas áreas urbanas.---------------------------------------------Several studies in Brazil show a strong effect of educational inequality opportunity on earning concentration. This paper analyses educational inequality opportunity in brazilian rural and urban areas using a schooling attainment profile which define graphically the proportion of youngs on poorest, middle and richest families that conclude each schooling grade. The results show that the difficulty to decrease wealth gap at education are much bigger in rural areas, where drop-out among the poor is much fastter on primary school than urban areas.
Quark and Lepton Masses in 5D SO(10)
Creators: name: Kim, Hyung Do
name: Raby, Stuart
name: Schradin, Leslie
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We construct a five dimensional supersymmetric SO(10)$\times$D$_3$ grand unified model with an $S^1/(Z_2 \times Z^\prime_2)$ orbifold as the extra dimension. The orbifold breaks half of the supersymmetry and breaks the SO(10) gauge symmetry down to ${\rm SU(4)}_C \times {\rm SU(2)}_L \times {\rm SU(2)}_R$. The Higgs mechanism is used to break the remaining gauge symmetry the rest of the way to the Standard Model. We place matter fields variously in the bulk and on the orbifold fixed points and the resulting massless fields are mixtures between these brane and bulk fields. A chiral adjoint field in the bulk gets a U(1)$_X$ vacuum expectation value, resulting in an $X$-dependent localization of the bulk matter fields and the Standard Model Higgs field. This Higgs field localization allows us to simultaneously explain the hierarchies $m_u < m_d$ and $m_t \gg m_b$. The model uses 11 parameters to fit the 13 independent low energy observables of the quark and charged lepton Yukawa matrices. The model predicts the values of two quark mass combinations, $\f{m_u}{m_c}$ and $m_d m_s m_b$, each of which are predicted to be approximately $1 σ$ above their experimental values. The remaining observables are successfully fit at the 5% level.
description: 52 pages, published version, includes more discussion of 6D version of model
RENDA FAMILIAR EM ÁREAS DE REFORMA AGRÁRIA: UMA AVALIAÇÃO DO ASSENTAMENTO BELA VISTA, BAHIA
Creators: name: Silva, Edna Maria Da
name: Bbalanco, Paulo Antonio De Freitas
name: Couto, Vitor De Athayde
name: Silva, Edna Maria Da
name: Bbalanco, Paulo Antonio De Freitas
name: Couto, Vitor De Athayde
Publisher: name: Unknown
Year: 2008
Subjects: subject: Agricultural Finance
subject: Reforma agrária
subject: Renda familiar
subject: Bahia
subject: Sistemas de produção
subject: The agrarian Reformation
subject: Familiar income
subject: Systems of production

description: Este trabalho foi realizado na região do Recôncavo Baiano em 2005, especificamente no município de Santo Amaro, no Assentamento Bela Vista, organizado pelo Movimento dos Trabalhadores Rurais Sem Terra (MST). Tem-se como objetivo calcular a renda familiar relacionada às atividades de famílias de agricultores nessa área de assentamento com o propósito de avaliar a viabilidade e o desempenho das unidades familiares ali presentes. Nesta pesquisa utilizou-se como procedimento metodológico a Análise-Diagnóstico de Sistemas Agrários, mediante a qual calculou-se o valor da renda familiar agrícola e do auto-consumo para quatro tipos representativos de produtores assentados (Pi), chegando-se à elaboração de um quadro demonstrativo, de forma comparativa, do desempenho das famílias estudadas. --------------------------------------------This work was accomplished in the Recôncavo Baiano area in 2005, specifically in the municipal district of Santo Amaro, in the Bela Vista Establishment, organized for the Movement of the Rural Workers without Earth (MST). The main objective is the calculation of the family income related to the activities of farmers' families in that establishment area with the purpose of evaluating the viability and the acting of the family units. In this research it was used as methodological procedure the Analysis-diagnosis of Agrarian Systems. The value of the agricultural family income and of the self-consumption was calculated for four representative kinds of producers with the elaboration of a demonstrative picture, in a comparative way, of the acting of the studied families.