cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Desempenho da produção familiar de tilápias no semi-árido potiguar
Creators: name: Silva, Márcio Ribeiro Da
name: Medeiros, Josemar Xavier De
name: Marcelino, Gileno Fernandes
name: Silva, Márcio Ribeiro Da
name: Medeiros, Josemar Xavier De
name: Marcelino, Gileno Fernandes
Publisher: name: Unknown
Year: 2007
Subjects: subject: Agribusiness
subject: Tilápias
subject: Family’s Production
subject: Performance
subject: Supply Chain and Institucional and Organizacional Inﬂuence.

description: The Tilápia’s production has detached like a activity wich confer chances for famlily’s producers of semi-árida region, with a pro-duction of ﬁshes in dams, wells and lakes, basic for surviver of commu-nities and producers, of semi-árida region. The general objective this paper was evaluate the performance of family’s organization producers of tilápias, representantive of the productive reality in the semi-árida region of Rio Grande do Norte. The methodology was the case study with intentional sampling of familie’s organizations, representative of reality tilápia’s of family’s production in the region potiguar’s semi-árido. For analise of performance it used the tool of “Escala de Li-kert”, identifying competitive’s pointers to differents segments of suply chain, and inﬂuencing the global preformance of suply chain. It used the matrix of importance and performance os Slack, in complement, to command the degrees of importance and these inﬂuence in the ge-neral performance. Finally, this research show the possibility to use the analysis tools, normally use for biggers agroindustrials sistems, for family production, detaching its conditions and diﬁculties. Also, it indicates itens excellent for speciﬁes research for tilápia’s suply chain, in the scope of family’s production.
Índice de desempenho competitivo das empresas de polpa de frutas do Estado do Pará
Creators: name: Santana, Antônio Cordeiro De
name: Santana, Antônio Cordeiro De
Publisher: name: Unknown
Year: 2007
Subjects: subject: Agribusiness
subject: Competitive performance index
subject: fruit’s pulp
subject: agro-industry
subject: Amazon.

description: The objective of this paper was to construct a competitive per-formance index (CPI) for the fruit’s pulp ﬁrms of State of Pará. A factor analysis and multiple regression models were used to estimate the CPI. Out the 27 ﬁrms analyzed, the results showed that only one ﬁrm presen-ted a high CPI and three ﬁrms are obtaining intermediate CPI. Finally, there is a positive relationship between the ﬁrms’ CPI and the variables proﬁt’s margins and number of supplier was observed.
title: Performance analysis of algorithms for quantized compressed sensing
Creators: name: Hashkil, Sherif Shaker
Publisher: name: TU Wien
Year: 2018
Subjects: subject: Compressed sensing
subject: quantization
subject: Compressed sensing
subject: quantization

description: Current data acquisition methods acquire massive amounts of data, which needs to be compressed, i.e. part of these data is discarded, in order to allow its storage or transmission. This is a wasteful and excessive work. The new emerging compressive sensing (CS) concept enables directly representing the signals with far fewer measurements than required by current techniques, and resolving the signals from these fewer measurements. This is made possible by exploiting the inherent redundancy of the signals, which is translated to sparsity in a transform domain. CS can recover the sparse signal accurately using various techniques: convex optimization algorithms (i.e. Basis Pursuit (BP)), greedy algorithms (i.e. Orthogonal Matching Pursuit (OMP)) and projected gradient descent algorithms (i.e. Iterative Hard Thresholding (IHT)). In classical CS the resulting measurements values are real values and need to be quantized. As the quantization part is the main burden and main source of error in the analog to digital converter (ADC) process, the quantized CS decreases the bit-depth, and reveals in its extreme case, the 1-bit compressive sensing (1-bit CS) framework, its capability to represent each measurement value using one bit only, i.e. its sign. In the 1-bit CS configuration, the quantizer can be a low power simple comparator running at high rate, producing a positive or negative sign for each measurement value. This reduces the complexity of the signal acquisition. In this thesis we present the classical CS concept and its main recovery algorithms, and then the 1-bit CS formulation is illustrated. We address mainly in this thesis the main recovery algorithms for the 1-bit CS recovery problem: the first proposed algorithms, the Renormalized Fixed Point Iteration (RFPI) and Binary Iterative Hard Thresholding (BIHT), are suitable for noise free measurements. The Binary Iterative Hard Thresholding (BIHT) and the HISTORY algorithms can reconstruct the sparse signal from noisy measurements. The probabilistic Bayesian recovery algorithm does not need the sparsity value as an input. The performance of these algorithms is analyzed under different sparsity values and under different noisy measurement scenarios, with a comparison between them.
An Example of Double Cross Coproducts with Non-trivial Left Coaction and Right Coaction in Strictly Braided Tensor Categories
Creators: name: Zhang, Shouchuan
name: Yang, Bizhong
name: Ren, Beishang
Publisher: name: arXiv
Year: 2004
Subjects: subject: Quantum Algebra (math.QA)
subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics
subject: 16w30

description: An example of double cross coproducts with both non-trivial left coaction and non-trivial right coaction in strictly braided tensor categories is given.
description: 28 pages
Structured annotations to support collaborative writing workflow
Creators: name: Zheng, Qixing
Publisher: name: University of British Columbia
Year: 2010

description: Most co-authoring tools support basic annotations, such as edits and comments anchored at specific locations in the document. However, they do not support higher-level communication about a document such as commenting on the tone of a document, giving more explanation about a group of basic annotations, or having a document-related discussion. Such higher-level communication gets separated from the document, often in the body of email messages. This causes unnecessary overhead in the write-review-edit workflow inherent in co-authoring. To address the problem, we first established user-centered requirements for annotation support. We conducted a small field investigation of email exchanges including document attachments, among three small groups of academics (3 to 5 people each). We categorized the higher-level communication from the email and developed a set of eleven requirements to support document annotations. We next developed document-embedded structured annotations called "bundles" that incorporate higher-level communication into a unified annotation model meeting the set of requirements. We also designed and implemented a high-fidelity prototype called the "Bundle Editor" that illustrates our structured annotation model. Finally, we conducted a usability study with 20 participants to evaluate the annotation reviewing stage of co-authoring. The study showed that the annotation bundles in our high-fidelity prototype reduced reviewing time and increased accuracy, compared to a system that supports only edits and comments.
Inside Out and Upside-Down: The Roles of Gas Cooling and Dynamical Heating in Shaping the Stellar Age-Velocity Relation
Creators: name: Bird, Jonathan C.
name: Loebman, Sarah R.
name: Weinberg, David H.
name: Brooks, Alyson
name: Quinn, Thomas R.
name: Christensen, Charlotte R.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Kinematic studies of disk galaxies, using individual stars in the Milky Way or statistical studies of global disk kinematics over time, provide insight into how disks form and evolve. We use a high-resolution, cosmological zoom-simulation of a Milky Way-mass disk galaxy h277 to tie together local disk kinematics and the evolution of the disk over time. The present-day stellar age-velocity relationship (AVR) of h277 is nearly identical to that of the analogous solar-neighborhood measurement in the Milky Way. A crucial element of this success is the simulation's dynamically cold multi-phase ISM, which allows young stars to form with a low velocity dispersion ($σ_{\mathrm{birth}}$$\sim 6 - 8\ \mathrm{km}\, \mathrm{s}^{-1}$) at late times. Older stars are born kinematically hotter (i.e., the disk settles over time in an "upside-down" formation scenario), and are subsequently heated after birth. The disk also grows "inside-out", and many of the older stars in the solar neighborhood at $z=0$ are present because of radial mixing. We demonstrate that the evolution of $σ_{\mathrm{birth}}$ in h277 can be explained by the same model used to describe the general decrease in velocity dispersion observed in disk galaxies from $z\sim 2-3$ to the present-day, in which the disk evolves in quasi-stable equilibrium and the ISM velocity dispersion decreases over time due to a decreasing gas fraction. Thus, our results tie together local observations of the Milky Way's AVR with observed kinematics of high $z$ disk galaxies.
description: Submitting to MNRAS. Comments welcomed. This simulation is publicly available. Contact Alyson Brooks for details
Energy Systematics of Low-lying Collective States within the Framework of the Interacting Vector Boson Model
Creators: name: Ganev, H. G.
name: Garistov, V. P.
name: Georgieva, A. I.
name: Draayer, J. P.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: In a new application of the algebraic Interacting Vector Boson Model (IVBM), we exploit the reduction of its Sp(12,R) dynamical symmetry group to Sp(4,R) x SO(3), which defines basis states with fixed values of the angular momentum L. The relationship of the latter to $U(6) \subset U(3)x U(2), which is the rotational limit of the model, means the energy distribution of collective states with fixed angular momentum can be studied. Results for low-lying spectra of rare-earth nuclei show that the energies of collective positive parity states with L=0,2,4,6... lie on second order curves with respect to the number of collective phonons n or vector bosons N=4n out of which the states are built. The analysis of this behavior leads to insight regarding the common nature of collective states, tracking vibrational as well as rotational features.
description: 8 pages, 5 figures, 4 tables
Reforma agrária e desenvolvimento na América Latina: rompendo com o reducionismo das abordagens economicistas
Creators: name: Leite, Sergio Pereira
name: Ávila, Rodrigo Vieira De
name: Leite, Sergio Pereira
name: Ávila, Rodrigo Vieira De
Publisher: name: Unknown
Year: 2007
Subjects: subject: Agribusiness
subject: Agrarian reform
subject: Rural Development
subject: Agrarian Policy

description: It is necessary to rethink the process of agrarian transforma-tion by approaching agrarian reform as a strategic vehicle for social and sustainable development. This has implications for general agricultural and economic growth, as well as for social justice and the conception of development as an expansion of freedom. Various analytical studies of the economic and historical factors of agricultural development proces-ses, for example in Latin America context, have highlighted a number of important linkages that should be considered in discussions of agrarian reform. High levels of inequality at the beginning of a development pro-cess (for example, high concentration of land and wealth) weigh negati-vely on long-term economic growth. Countries with a high concentration of land achieve slower economic growth than those with a more egali-tarian land structure. High levels of economic and land concentration also form a barrier to the promotion of social justice, leaving millions of people in the margins of full citizenship. Agrarian reform program-mes should be accompanied by measures such as poverty reduction and equity promotion policies, to support the beneﬁciaries in order for these reforms to have signiﬁcant and sustainable results.
title: Interface trap and mobile charge density in dry oxidized 4H-SiC MOS structures in a wide temperature range
Creators: name: Triendl, Fabian
Publisher: name: TU Wien
Year: 2018
Subjects: subject: 4H-SiC
subject: MOS
subject: Oxidation
subject: Interface traps
subject: Mobile Ions
subject: CV
subject: Conductance

description: This master's thesis deals with the interface trap characterization of Si-face 4H-SiC (siliconcarbide) metal-oxide-semiconductor (MOS) structures realized by dry thermal oxidation. First, a detailed theoretical study of the 4H-SiC MOS structure in a wide temperature range is done to obtain theoretical Capacitance-Voltage (CV) curves. Experimentally, the Dit distribution is extracted using the high frequency Terman method, the low frequency capacitance method, the high-low frequency method and the conductance method in a temperature range from 150 to 600 K. Within this thesis a custom-built quasi-static (QS)-CV measurement circuit based on the improved feedback charge method is designed and realized and shows a high accuracy and a very low offset current. For a more detailed characterization mobile charge densities using the bias temperature stress (BTS) and the triangular voltage sweep (TVS) method are determined as well as breakdown measurements are performed. A very good agreement between the different interface trap characterization methods and rather low Dit values are extracted in a wide energy range of 0.05 eV up to 0.85 eV below the conduction band. Three different types of interface traps are identified. Besides the classic interface traps both near interface oxide traps (NIOTs) with a large response time constant and traps with a very short time constant are found additionally. The mobile charge density is measured to be in the 2x10^12 cm^2 range. A large influence of pre-oxidation substrate cleaning to all investigated parameters is demonstrated.
title: Avant-propos_Guide de l'amateur de T. S. F.
Creators: name: AmateurS
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020

description: Avant-propos
description: ID_PARA_00813
Cluster points of jumping numbers of toric plurisubharmonic functions
Creators: name: Seo, Hoseob
Publisher: name: arXiv
Year: 2020
Subjects: subject: Algebraic Geometry (math.AG)
subject: Complex Variables (math.CV)
subject: FOS: Mathematics
subject: 14F18 (Primary), 32U05 (Secondary)

description: We show that the set of cluster points of jumping numbers of a toric plurisubharmonic function in $\mathbf{C}^n$ is discrete for every $n \ge 1$. We also give a precise characterization of the set of those cluster points. These generalize a recent result of D. Kim and H. Seo from $n=2$ to arbitrary dimension. Our method is to analyze the asymptotic behaviors of Newton convex bodies associated to toric plurisubharmonic functions.
description: 8 pages
Auxiliary field method at finite temperature and/or finite density
Creators: name: Kouno, Hiroaki
Publisher: name: arXiv
Year: 2004
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We discuss the relation between the effective vector meson mass and equation of state (EOS) for nuclear matter. In the mean field approximation, the EOS becomes softer due to the reduction of the effective omega-meson mass, if we assume that the omega-meson mean field is proportional to the baryon density. We examine the assumption by using the auxiliary field method at finite temperature and /or density.
description: 3 pages, to be published in the proceedings for the YITP workshop YITP-W-04-07 on "Thermal Quantum Field Theories and Their Applications", Kyoto, August 9-11, 2004
Ballistic resistivity in aluminum nanocontacts
Creators: name: Hasmy, A.
name: Perez-Jimenez, A. J.
name: Palacios, J. J.
name: Garcia-Mochales, P.
name: Costa-Kramer, J. L.
name: Diaz, M.
name: Medina, E.
name: Serena, P. A.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: One of the major industrial challenges is to profit from some fascinating physical features present at the nanoscale. The production of dissipationless nanoswitches (or nanocontacts) is one of such attractive applications. Nevertheless, the lack of knowledge of the real efficiency of electronic ballistic/non dissipative transport limits future innovations. For multi-valent metallic nanosystems -where several transport channels per atom are involved- the only experimental technique available for statistical transport characterization is the conductance histogram. Unfortunately its interpretation is difficult because transport and mechanical properties are intrinsically interlaced. We perform a representative series of semiclassical molecular dynamics simulations of aluminum nanocontact breakages, coupled to full quantum conductance calculations, and put in evidence a linear relationship between the conductance and the contact minimum cross-section for the geometrically favored aluminum nanocontact configurations. Valid in a broad range of conductance values, such relation allows the definition of a transport parameter for nanomaterials, that represents the novel concept of ballistic resistivity.
Additional file 1 of Molecular epidemiology of Enterocytozoon bieneusi from foxes and raccoon dogs in the Henan and Hebei provinces in China
Creators: name: Chen, Minghui
name: Wang, Haidong
name: Li, Xinmiao
name: Guo, Yunan
name: Lu, Ying
name: Zheng, Liping
name: Liang, Guoqing
name: Sui, Yuzhen
name: Wang, Bukang
name: Dai, Hongyu
name: Dong, Haiju
name: Zhang, Longxian
Publisher: name: figshare
Year: 2024
Subjects: subject: Space Science
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: Biological Sciences not elsewhere classified
subject: Cancer
subject: Computational Biology

description: Supplementary Table S1: Names of the farms where the samples were collected
A two-way algorithm for the entanglement problem
Creators: name: Hulpke, Florian
name: Bruss, Dagmar
Publisher: name: arXiv
Year: 2004
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We propose an algorithm which proves a given bipartite quantum state to be separable in a finite number of steps. Our approach is based on the search for a decomposition via a countable subset of product states, which is dense within all product states. Performing our algorithm simultaneously with the algorithm by Doherty, Parrilo and Spedalieri (which proves a quantum state to be entangled in a finite number of steps) leads to a two-way algorithm that terminates for any input state. Only for a set of arbitrary small measure near the border between separable and entangled states the result is inconclusive.
description: 4 pages, 1 figure
Agrarspekulation mit Indexfonds: Wie sie funktioniert. Was sie bewirkt.
Creators: name: Glauben, Thomas
name: Prehn, Sören
name: Pies, Ingo
name: Will, Matthias Georg
name: Loy, Jens-Peter
name: Balmann, Alfons
name: Brümmer, Bernhard
name: Heckelei, Thomas
name: Hockmann, Heinrich
name: Kirschke, Dieter
name: Koester, Ulrich
name: Langhammer, Rolf
name: Salhofer, Klaus
name: Schmitz, Peter Michael
name: Tangermann, Stefan
name: Von Witzke, Harald
name: Wesseler, Justus
name: Glauben, Thomas
name: Prehn, Sören
name: Pies, Ingo
name: Will, Matthias Georg
name: Loy, Jens-Peter
name: Balmann, Alfons
name: Brümmer, Bernhard
name: Heckelei, Thomas
name: Hockmann, Heinrich
name: Kirschke, Dieter
name: Koester, Ulrich
name: Langhammer, Rolf
name: Salhofer, Klaus
name: Schmitz, Peter Michael
name: Tangermann, Stefan
name: Von Witzke, Harald
name: Wesseler, Justus
Publisher: name: Unknown
Year: 2013
Subjects: Agricultural Finance
Financial Economics

description: Long-only-Indexfonds stehen seit geraumer Zeit unter Verdacht, für die Preisanstiege an landwirtschaftlichen Warenterminmärkten verantwortlich zu sein. Hieraus wird die Forderung abgeleitet, den Aktivitätsradius dieser Indexfonds drastisch einzuschränken. Allerdings stehen solche Forderungen sowie die zugrunde liegende Diagnose im Widerspruch zum aktuellen Stand wissenschaftlicher Erkenntnis. Die empirisch orientierte Literatur liefert bisher keine belastbare Evidenz, dass Long-only-Indexfonds mit ihren Termingeschäften das Niveau bzw. die Volatilität der Preise für Agrarrohstoffe signifikant angehoben haben. Neue theoretische Arbeiten weisen vielmehr darauf hin, dass Long-only-Indexfonds gemäß ihrer Anlagestrategie tendenziell die Agrarrohstoffpreise stabilisieren sowie eine wichtige Versicherungs- und Wettbewerbsfunktion auf Agrarmärkten erfüllen. Durch ihr Engagement sinken die Risikoprämien, so dass sich Nahrungsmittelproduzenten zu niedrigeren Kosten gegen Preisschwankungen absichern können. Die niedrigeren Risikoprämien motivieren Landwirte, einen größeren Teil ihrer Ernte einzulagern, was saisonalen Preisschwankungen entgegenwirkt. Im Sinne einer nachhaltigen Sicherung der globalen Nahrungsmittelversorgung sollte von strengen Marktzutrittsregulierungen der Long-only-Indexfonds abgesehen werden.
Coupling Schemes for an n su(2) Spin System
Creators: name: Yamamura, M.
name: Providencia, C.
name: da Providencia, J.
name: Tsue, Y.
name: Providencia,, J. da
Publisher: name: arXiv
Year: 2004
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: In the framework of the Schwinger boson representation for the su(2)-algebra, the closed form is derived for the total spin eigenstates which result from the coupling of n su(2)-spins. In order to demonstrate its usefulness, the orthogonal set for the so(5)-algebra, which is reduced to four su(2)-spin systems, is obtained.
description: 19 pages, no figure
Additional file 1 of Power analysis for RNA-Seq differential expression studies using generalized linear mixed effects models
Creators: name: Yu, Lianbo
name: Fernandez, Soledad
name: Brock, Guy
Publisher: name: figshare
Year: 2020
Subjects: subject: Statistics
subject: FOS: Mathematics

description: Additional file 1 This pdf file contains all supplementary figures referenced in results section.
FINANCEMENT DE L’AGRICULTURE A HAUTEUR DE 10% DU BUDGET NATIONAL SELON LES ACCORDS DE MAPUTO : QUEL IMPACT SUR LE NIVEAU DE PAUVRETE DES MENAGES EN MILIEU RURAL AU BENIN?
Creators: name: Oloukoï, Laurent
name: Amoussouga Gero, Fulbert
name: Acclassato, Dénis
name: Chabossou, F. Augustin
name: Oloukoï, Laurent
name: Amoussouga Gero, Fulbert
name: Acclassato, Dénis
name: Chabossou, F. Augustin
Publisher: name: Unknown
Year: 2013
Subjects: subject: Agricultural Finance
subject: Food Security and Poverty
subject: financement
subject: probabilité de pauvreté
subject: modèle
subject: milieu rural
subject: Bénin

description: Cet article utilise les données issues de l’Enquête Modulaire Intégrée sur les Conditions de Vie des ménages au Bénin (EMICoV) pour estimer l’impact du financement rural par le budget national tel que définis par les accords de Maputo sur la probabilité de pauvreté en milieu rural au Bénin. L’analyse s’est effectuée à partir du modèle de Datt et Jolliffe (2005). Les principaux résultats issus des analyses révèlent entre autres que la probabilité moyenne de pauvreté en milieu rural est d’environ 38% avec de très fortes valeurs dans les départements du Nord. Si le gouvernement avait mis en oeuvre l’accord de Maputo, la probabilité de pauvreté en milieu rural serait baissée d’environ 46% entre 2007 et 2011. Vu l’impact très positif du financement du secteur rural à hauteur de 10% du budget national, il urge pour l’Etat de mettre en oeuvre cette politique dans les années à venir.
Evidence of AGN feedback and sloshing in the X-ray luminous NGC 1550 galaxy group
Creators: name: Kolokythas, Konstantinos
name: O'Sullivan, Ewan
name: Giacintucci, Simona
name: Worrall, Diana M.
name: Birkinshaw, Mark
name: Raychaudhury, Somak
name: Horellou, Cathy
name: Intema, Huib
name: Loubser, Ilani
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present results from GMRT and Chandra observations of the NGC 1550 galaxy group. Although previously thought of as relaxed, we show evidence that gas sloshing and active galactic nucleus (AGN) heating have affected the structure of the system. The 610 and 235 MHz radio images show an asymmetric jet-lobe structure with a total size of $\sim$33 kpc, with a sharp kink at the base of the more extended western jet, and bending of the shorter eastern jet as it enters the lobe. The 235$-$610 MHz spectral index map shows that both radio lobes have steep spectral indices ($α_{235}^{610}\geq-1.5$) indicating the presence of an old electron population. The X-ray images reveal an asymmetric structure in the hot gas correlated with the radio structure, as well as potential cavities coincident with the radio lobes, with rims and arms of gas that may have been uplifted by the cavity expansion. The X-ray residual map reveals an arc shaped structure to the east that resembles a sloshing cold front. Radio spectral analysis suggests a radiative age of about 33 Myr for the source, comparable to the sloshing timescale and dynamical estimates of the age of the lobes. An estimate of the mechanical energy required to inflate the cavities suggests that the AGN of NGC 1550 is capable of balancing radiative losses from the intragroup medium (IGM) and preventing excessive cooling, providing that the AGN jets are efficiently coupled to the IGM gas. In conclusion, we find evidence of sloshing motions from both radio and X-ray structures, suggesting that NGC 1550 was perturbed by a minor merger or infalling galaxy about 33 Myr ago.
description: Accepted for publication in MNRAS, 17 pages with 13 figures and 10 tables
Nucleon and dinucleon decays to leptonic final states in a left-right symmetric model with large extra dimensions
Creators: name: Girmohanta, Sudhakantha
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We consider baryon-number-violating nucleon and dinucleon decays to leptonic final states in the context of a left-right symmetric (LRS) model with large extra dimensions. Specifically, we study (a) nucleon to trilepton decays with $ΔB=-1$ and $ΔL=-3$, and (b) dinucleon to dilepton decays with $ΔB=-2$ and $ΔL=-2$. In the LRS model, $B-L$ is gauged and is spontaneously broken by a Higgs vacuum expectation value $v_R$, which characterizes the scale at which processes violating $B-L$ occur. We show that together with the lower bound on $v_R$ from experimental limits on $n$-$\bar n$ oscillations, constraints from searches for other nucleon decay modes imply sufficient suppression of these nucleon to trilepton and dinucleon to dilepton decay modes in this model to agree with experimental bounds.
description: 23 pages, 1 figure
The Effects of Skin Lesion Segmentation on the Performance of Dermatoscopic Image Classification
Creators: name: Mahbod, Amirreza
name: Tschandl, Philipp
name: Langs, Georg
name: Ecker, Rupert
name: Ellinger, Isabella
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Malignant melanoma (MM) is one of the deadliest types of skin cancer. Analysing dermatoscopic images plays an important role in the early detection of MM and other pigmented skin lesions. Among different computer-based methods, deep learning-based approaches and in particular convolutional neural networks have shown excellent classification and segmentation performances for dermatoscopic skin lesion images. These models can be trained end-to-end without requiring any hand-crafted features. However, the effect of using lesion segmentation information on classification performance has remained an open question. In this study, we explicitly investigated the impact of using skin lesion segmentation masks on the performance of dermatoscopic image classification. To do this, first, we developed a baseline classifier as the reference model without using any segmentation masks. Then, we used either manually or automatically created segmentation masks in both training and test phases in different scenarios and investigated the classification performances. Evaluated on the ISIC 2017 challenge dataset which contained two binary classification tasks (i.e. MM vs. all and seborrheic keratosis (SK) vs. all) and based on the derived area under the receiver operating characteristic curve scores, we observed four main outcomes. Our results show that 1) using segmentation masks did not significantly improve the MM classification performance in any scenario, 2) in one of the scenarios (using segmentation masks for dilated cropping), SK classification performance was significantly improved, 3) removing all background information by the segmentation masks significantly degraded the overall classification performance, and 4) in case of using the appropriate scenario (using segmentation for dilated cropping), there is no significant difference of using manually or automatically created segmentation masks.
description: Accepted to the Computer Methods and Programs in Biomedicine journal
DYNAMIQUE DE LA COMPETITIVITE EXTERNE DE L’AGRICULTURE AU BENIN : ANALYSE PAR UNE APPROCHE DYNAMIQUE SYNTHETIQUE
Creators: name: Oloukoï, Laurent
name: Amoussouga Gero, Fulbert
name: Acclassato, Dénis
name: Chabossou, F. Augustin
name: Oloukoï, Laurent
name: Amoussouga Gero, Fulbert
name: Acclassato, Dénis
name: Chabossou, F. Augustin
Publisher: name: Unknown
Year: 2013
Subjects: subject: Agribusiness
subject: Agricultural and Food Policy
subject: taux de change réel
subject: compétitivité
subject: agriculture
subject: modèle vectoriel autorégressif

description: Le présent papier calcul, dans un premier temps, un indicateur de compétitivité externe de l’agriculture au Bénin à savoir le taux de change réel. Dans un deuxième temps, l’analyse de la dynamique de moyen et de long terme de cette compétitivité est faite. Une approche dynamique synthétique combinant le NATREX (Natural Real Exchange Rate) et le BEER (Behavioral Equilibrium Exchange Rate) est utilisée. L’analyse de la dynamique de moyen et de long terme a montré qu’une augmentation des taux d’intérêt débiteurs réels au Bénin comparativement à ses partenaires contribuerait à moyen terme, à générer des pertes de compétitivité de l’agriculture béninoise. En effet, une forte croissance des taux d’intérêt réels au Bénin, en renchérissant le coût du crédit, favorise la baisse des investissements dans des projets agricoles. Cette situation ne permet pas d’impulser le capital et donc la croissance économique agricole. Ce qui serait responsable en partie, dans le cas du Bénin, d’une forte augmentation des dépenses publiques dans le secteur agricole créant ainsi un déficit des comptes publics. Par ailleurs, les politiques d’amélioration de la préférence pour le présent (augmentation conjointe de la demande pour les biens agricoles et des dépenses gouvernementales dans le secteur agricole) et de la productivité globale des facteurs (amélioration du niveau des productions et de la technologie) pourront avoir un effet positif sur la compétitivité externe du secteur agricole à long terme.
Additional file 1 of Mother’s satisfaction with the existing labor and delivery care services at public health facilities in West Shewa zone, Oromia region, Ethiopia
Creators: name: Bulto, Gizachew Abdissa
name: Dereje Bayissa Demissie
name: Tefera Likasa Tasu
name: Getu Alemu Demisse
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Science Policy

description: Additional file 1. English version Questionnaire
An evaluation of overviews for large tree navigation
Creators: name: Bodnar, Adam Michael
Publisher: name: University of British Columbia
Year: 2010

description: As the amount of information that must be understood by people continues to grow, techniques for efficiently exploring large datasets become increasingly important. Pan and zoom interaction has been shown to be effective for exploring small datasets. However, pan and zoom on its own provides no visual cues about regions of the dataset outside the current field of view, which can result in loss of orientation, leading to inefficient patterns of navigation. Overviews offer one possible solution to this problem by providing the user with contextual information regarding regions outside the current field of view, at the cost of reducing the screen real estate available for the primary detail view, and imposing the need to switch attention between multiple views. Focus+Context techniques offer another solution to this problem by integrating focus and context regions into a single view, often using distortion-based methods, which themselves impose a cost of tracking objects undergoing nonlinear transformations. While overviews have been shown to be beneficial for pan and zoom interfaces, no study to date has explored the potential benefits of adding an overview to Focus+Context interfaces. This thesis presents two studies that evaluate overviews for large tree navigation. Interfaces implementing these techniques were used by 80 subjects, over two studies, to perform a task exploring a large hierarchical tree dataset, which was motivated by the needs of evolutionary biologists. Our first study was designed to investigate the optimal size for an overview for both pan and zoom and Focus+Context interfaces. Our results show that the size of the overview did not affect performance, but the presence of an overview did impact the strategy users adopted. Our second study was designed to compare the performance of pan and zoom and rubber sheet navigation techniques with and without an overview. This thesis also presents the first step towards a taxonomy of tasks for large tree navigation. Our taxonomy is informed from interviews with evolutionary biologists who use large trees to investigate the evolutionary relationships between species. All interfaces implemented guaranteed visibility, a recent innovation in the field of information visualization, which ensures that regions of interest remain visible to the user at all times, independent of navigation actions. We discuss the implications of this research, including the relationship between overviews and guaranteed visibility, and propose directions for future work.
A Realistic Fish-Habitat Dataset to Evaluate Algorithms for Underwater Visual Analysis
Creators: name: Saleh, Alzayat
name: Laradji, Issam H.
name: Konovalov, Dmitry A.
name: Bradley, Michael
name: Vazquez, David
name: Sheaves, Marcus
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: Image and Video Processing (eess.IV)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Visual analysis of complex fish habitats is an important step towards sustainable fisheries for human consumption and environmental protection. Deep Learning methods have shown great promise for scene analysis when trained on large-scale datasets. However, current datasets for fish analysis tend to focus on the classification task within constrained, plain environments which do not capture the complexity of underwater fish habitats. To address this limitation, we present DeepFish as a benchmark suite with a large-scale dataset to train and test methods for several computer vision tasks. The dataset consists of approximately 40 thousand images collected underwater from 20 \green{habitats in the} marine-environments of tropical Australia. The dataset originally contained only classification labels. Thus, we collected point-level and segmentation labels to have a more comprehensive fish analysis benchmark. These labels enable models to learn to automatically monitor fish count, identify their locations, and estimate their sizes. Our experiments provide an in-depth analysis of the dataset characteristics, and the performance evaluation of several state-of-the-art approaches based on our benchmark. Although models pre-trained on ImageNet have successfully performed on this benchmark, there is still room for improvement. Therefore, this benchmark serves as a testbed to motivate further development in this challenging domain of underwater computer vision. Code is available at: https://github.com/alzayats/DeepFish
description: 10 pages, 5 figures, 3 tables, Accepted for Publication in Scientific Reports (Nature) 14 August 2020
Monopole Vacuum in Non-Abelian Theories
Creators: name: Lantsman, L. D.
name: Pervushin, V. N.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: It is shown that, in the theory of interacting Yang -Mills fields and a Higgs field, there is a topological degeneracy of Bogomol'nyi-Prasad-Sommerfield (BPS) monopoles and that there arises, in this case, a chromoelectric monopole characterized by a new topological variable that describes transitions between topological states of the monopole in the Minkowski space (in just the same way as an instanton describes such transitions in the Euclidean space). The limit of an infinitely large mass of the Higgs field at a finite density of the BPS monopole is considered as a model of the stable vacuum in the pure Yang-Mills theory. It is shown that, in QCD, such a monopole vacuum may lead to a rising potential, a topological confinement and an additional mass of the $η_0$ meson. The relationship between the result obtained here for the generating functional of perturbation theory and Faddeev-Popov integral is discussed.
Food commodity price volatility and food insecurity
Creators: name: Sarris, Alexander
name: Sarris, Alexander
Publisher: name: Unknown
Year: 2013
Subjects: subject: Demand and Price Analysis
subject: Food Security and Poverty
subject: International Development
subject: Agricultural price volatility
subject: developing countries
subject: food insecurity

description: The paper first reviews several issues relevant to global food commodity market volatility as it pertains to food security, and food importing developing countries, and then discusses international and national policies and measures to prevent or manage this volatility and related risks. It is shown that market volatility relates to unpredictability of market fundamentals, and price spikes occur when unpredictability increases excessively. The food security risks faced by food import developing countries are discussed and it is highlighted that the major risks involve not only large and unpredictable price variations but also trade finance as well as import contract enforcement. The problem of identifying a price spike is analyzed and it is seen that, despite difficulties in commodity modeling, there are empirical techniques that allow the assessment of the probabilities of price spikes, and could facilitate the triggering of responses. Suggestions are made concerning institutions and policies to assist developing countries better cope with the risks of commodity market volatility.
Optical Neural Networks: The 3D connection
Creators: name: Dinc, Niyazi Ulas
name: Psaltis, Demetri
name: Brunner, Daniel
Publisher: name: arXiv
Year: 2020
Subjects: subject: Emerging Technologies (cs.ET)
subject: FOS: Computer and information sciences

description: We motivate a new canonical strategy for integrating photonic neural networks (NNs) by leveraging 3D printing. Our believe is that a NN's parallel and dense connectivity is not scalable without 3D integration. 3D additive fabrication complemented with photonic signal transduction can dramatically augment the current capabilities of 2D CMOS and integrated photonics. Here we review some of our recent advances made towards such a breakthrough architecture.
Additional file 1 of Obstructive lung disease and quality of life after cure of multi-drug-resistant tuberculosis in Uganda: a cross-sectional study
Creators: name: Nuwagira, Edwin
name: Stadelman, Anna
name: Baluku, Joseph Baruch
name: Rhein, Joshua
name: Byakika-Kibwika, Pauline
name: Mayanja, Harriet
name: Kunisaki, Ken M.
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Biotechnology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file 1: Multivariable Logistic Regression Parameter Estimates for COPD1 (Observed FEV1/FVC < LLN).
Reidemeister Moves in Gauss Diagrams
Creators: name: Ganzell, Sandy
name: Lehet, Ellen
name: Lopez, Cristina
name: Magallon, Gilbert
name: Thompson, Alyson
Publisher: name: arXiv
Year: 2020
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 57K10, 57K12

description: We provide a simple algorithm for recognizing and performing Reidemeister moves in a Gauss diagram.
description: 7 pages, 11 figures
From South of the Border, a Florescence of Creativity
Creators: name: :Unkn
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2021
Subjects: Literatura latinoamericana

description: Notas: Las dos partes del artículo están pegadas a hojas en blanco.
description: Tipo de publicación: Periódico
description: Título de la publicación: The National Observer
description: Periodicidad: Semanario
description: Source: Num.Ref. : JC-CAR-01.035
description: Source: Localización del archivo: Centre de Recherches Latino-Américaines (CRLA–Archivos, ITEM UMR8132). MSHS - Bât. A5, 1er étage 5 rue Théodore Lefebvre - TSA21103. 86073 Poitiers cedex 9.
Deep Spatial Transformation for Pose-Guided Person Image Generation and Animation
Creators: name: Ren, Yurui
name: Li, Ge
name: Liu, Shan
name: Li, Thomas H.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Pose-guided person image generation and animation aim to transform a source person image to target poses. These tasks require spatial manipulation of source data. However, Convolutional Neural Networks are limited by the lack of ability to spatially transform the inputs. In this paper, we propose a differentiable global-flow local-attention framework to reassemble the inputs at the feature level. This framework first estimates global flow fields between sources and targets. Then, corresponding local source feature patches are sampled with content-aware local attention coefficients. We show that our framework can spatially transform the inputs in an efficient manner. Meanwhile, we further model the temporal consistency for the person image animation task to generate coherent videos. The experiment results of both image generation and animation tasks demonstrate the superiority of our model. Besides, additional results of novel view synthesis and face image animation show that our model is applicable to other tasks requiring spatial transformation. The source code of our project is available at https://github.com/RenYurui/Global-Flow-Local-Attention.
description: arXiv admin note: text overlap with arXiv:2003.00696
Self-Organized Criticality, Optimization and Biodiversity
Creators: name: Onody, Roberto N.
name: de Castro, Paulo A.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: FOS: Biological sciences

description: By driven to extinction species less or poorly adapted, the Darwinian evolutionary theory is intrinsically an optimization theory. We investigate two optimization algorithms with such evolutionary characteristics: the Bak-Sneppen and the Extremal Optimization. By comparing their mean fitness in the steady state regime, we conclude that the Bak-Sneppen dynamics is more efficient than the Extremal Optimization if the parameter $τ$ is in the interval $[0,0.86]$. The determination of the spatial correlation and the probability distribution of the avalanches show that the Extremal Optimization dynamics does not lead the system into a critical self-organized state. Trough a discrete form of the Bak-Sneppen model we argument that biodiversity is an essential requisite to preserve the self-organized criticality.
description: 3 pages, 3 figures, published in to International Journal of Modern Physics C
Additional file 1 of Shadow and extended shadow cost sharing associated to informal long-term care: the case of Spain
Creators: name: Pozo-Rubio, Raúl Del
name: Moya-Martínez, Pablo
name: Ortega-Ortega, Marta
name: Oliva-Moreno, Juan
Publisher: name: figshare
Year: 2020
Subjects: subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file 1. Estimation of the shadow cost sharing of informal care and sociodemographic description.
Determinantes da Demanda Brasileira por Importação de Arroz: uma abordagem não linear
Creators: name: Poerschke, Rafael Pentiado
name: Morais, Igor Alexandre Clemente De
name: Poerschke, Rafael Pentiado
name: Morais, Igor Alexandre Clemente De
Publisher: name: Unknown
Year: 2014
Subjects: subject: Agribusiness
subject: Cointegration
subject: error correction model
subject: switching regime
subject: demand function.

description: The objective of this study is to analyze the behavior of the Brazilian demand for rough and milled rice between January 1995 and June 2010. The main aim is to test the adequacy of linear and non-linear relations that represent short and long-term variables on the demand. In general, long-term impacts from income and domestic price were the most determinants to imports and the rice can be seen as an inferior good. The price of imports contributes less than proportionately, while the importer seems to adjust the quantity with some lag. The correction of the model to short-term shocks was eased in monthly non-linear estimates, while it remained nearly stable in quarterly estimates. Finally, one can say that import cycles were strongly related to adverse climatic events, as well as to alterations in trade policy. The results draw attention to the influence of the government on the imports through pricing incentives to third parties – what proves to be helpful to overcome supply shortages in Brazil and Mercosur.