cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Waste Recycling in Biaxially Oriented Polypropylene - BOPP
Creators: name: Rodrigues, Maria Eduarda Gandolf
name: Stefny Piechaque Quevedo
name: Souza, José De
name: Farias, João Batista Sá De
Publisher: name: figshare
Year: 2020
Subjects: subject: Mechanical Engineering
subject: FOS: Mechanical engineering

description: Over time the production of the packaging has grown, incorporating new functions. One of the most found types of packaging in supermarkets is those of Biaxially Oriented Polypropylene (BOPP). This project aims at the recycling and characterization of wastes in Biaxially Oriented Polypropylene, for its recycling. The search seeks to select a problem with a practical goal. The question raised concerns the possibility of characterization and recycling of waste. Through the collection of BOPP packaging, the evaluation of the potentiality of recycling the waste was idealized, establishing a form of the polymer mixture, to obtain a homogeneous mass. They were specifically intended to evaluate the different formulations through essays, to define the best composition, by compounding their properties and checking their possible applications. The theoretical reference focused on the studies on the packaging and the BOPP. The process of metalization of the packaging consists of the combination of a thin layer of aluminium to the plastic film using steam. The methodology consisted of the collection of the material, its separation, and cleanliness. The mixture was made from BOPP and polypropylene (PP) recycled. Formulations made to define the best composition of the material content passed in the extruder. As a result, the combination of the two waste was not possible, because the granulation of the BOPP was not adequate compared to the PP. For the project to be appropriate, it would be necessary to use a binder machine to reduce the volume of BOPP waste.
Rehabilitation of incomplete Spinal Cord Injuries
Creators: name: Santos, João Vitor Dos
name: Passos, Pablo Michel Sperb Dos
name: Giacomin, Alexandre
name: Alves, Gabriel Soares Ledur
name: Souza, José De
Publisher: name: figshare
Year: 2020
Subjects: subject: Mechanical Engineering
subject: FOS: Mechanical engineering

description: This paper is a technological analysis with fundamentals of the area of mechanical engineering focused on assistive technology. A purpose is to assist the rehabilitation of lower limb gait through physiotherapeutic exercises for patients affected by the incomplete vertebral-medullar injury. The study in question had as its guiding question how to make the structure of the already dimensioned project more effective and to construct a device for the motor rehabilitation of the lower limbs of people affected by incomplete vertebral-medullar injury with a clinical report considered to favor the recovery of gait by physiotherapy? The research occurred through previous studies aimed at an incomplete vertebral-medullar injury. For the preparation of the study, the research methodology aimed at solving a specific problem through the invention/improvement of a product. With the results of the research, we obtained analysis related to the resistance of the 3D software structure that presented a good design, allowing an active construction of the prototype, which follows in the test phases.
DoQA -- Accessing Domain-Specific FAQs via Conversational QA
Creators: name: Campos, Jon Ander
name: Otegi, Arantxa
name: Soroa, Aitor
name: Deriu, Jan
name: Cieliebak, Mark
name: Agirre, Eneko
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: The goal of this work is to build conversational Question Answering (QA) interfaces for the large body of domain-specific information available in FAQ sites. We present DoQA, a dataset with 2,437 dialogues and 10,917 QA pairs. The dialogues are collected from three Stack Exchange sites using the Wizard of Oz method with crowdsourcing. Compared to previous work, DoQA comprises well-defined information needs, leading to more coherent and natural conversations with less factoid questions and is multi-domain. In addition, we introduce a more realistic information retrieval(IR) scenario where the system needs to find the answer in any of the FAQ documents. The results of an existing, strong, system show that, thanks to transfer learning from a Wikipedia QA dataset and fine tuning on a single FAQ domain, it is possible to build high quality conversational QA systems for FAQs without in-domain training data. The good results carry over into the more challenging IR scenario. In both cases, there is still ample room for improvement, as indicated by the higher human upperbound.
description: Accepted at ACL 2020. 13 pages 4 figures
Location and Spatial Pricing in Agricultural Markets
Creators: name: Graubner, Marten
name: Balmann, Alfons
name: Sexton, Richard J.
name: Graubner, Marten
name: Balmann, Alfons
name: Sexton, Richard J.
Publisher: name: Unknown
Year: 2010
Subjects: subject: Industrial Organization
subject: Research Methods/ Statistical Methods
subject: spatial competition
subject: location
subject: price discrimination
subject: oligopsony
subject: simulation

description: Agricultural markets often feature significant transport costs and spatially distributed production and processing which causes spatial imperfect competition. Spatial economics considers the firms’ decisions regarding location and spatial price strategy separately, usually on the demand side, and under restrictive assumptions. Therefore, alternative approaches are needed to explain, e.g., the location of new ethanol plants in the U.S. at peripheral as well as at central locations and the observation of different spatial price strategies in the market. We use an agent-based simulation model to analyze location and spatial pricing in a general model under multi-firm competition, two-dimensional space, and a continuum of potential price strategies. The results show, e.g., that depending on the location of a processor, different price strategies can be observed, spatial price discrimination can increase with the number of competitors, and elasticity in the producers’ supply functions can be identified as stabilizing factor of processor’s location.
Dissociative recombination and low-energy inelastic electron collisions of the helium dimer ion
Creators: name: Pedersen, H. B.
name: Buhr, H.
name: Altevogt, S.
name: Andrianarijaona, V.
name: Kreckel, H.
name: Lammich, L.
name: de Ruette, N.
name: Staicu-Casagrande, E. M.
name: Schwalm, D.
name: Strasser, D.
name: Urbain, X.
name: Zajfman, D.
name: Wolf, A.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: This paper reports results from an experimental investigation of the dissociative recombination (DR) of the helium dimer ions at the heavy-ion Test Storage Ring (TSR) in Heidelberg, observing neutral products from electron-ion collisions in a merged beams configuration at relative energies from near-zero (thermal electron energy about 10 meV) up to 40 eV.
The Radial Velocity Distribution of Class I and Flat-Spectrum Protostars
Creators: name: Covey, Kevin R.
name: Greene, Thomas P.
name: Doppmann, Greg W.
name: Lada, Charles J.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We analyze radial velocities for a sample of 31 Class I and flat spectrum protostars in Taurus-Auriga, rho Ophiuchi and Serpens for evidence of the global dynamical state of extremely young stellar populations buried within parental molecular clouds. Comparing the radial velocity of each protostar to that of the local CO gas, we are able to constrain the one dimensional radial velocity dispersion of Class I and flat spectrum objects to ~ 2.5 km/sec or below. This upper limit to the protostellar velocity dispersion is consistent with the velocity dispersions of surrounding CO gas which we measure to be ~ 1.4 km/sec, suggesting that the motions of protostars and local CO gas are dynamically linked and dominated by the gravitational potential of the molecular cloud. However, the upper limit on the protostellar velocity dispersion could still allow for slightly inflated motions of protostars relative to the local molecular gas. Four of the protostars analyzed appear to have velocities more than 3 sigma (7.5 km/sec) away from the central local CO gas velocity while showing spectroscopic indicators of youth and accretion such as H_2 emission, HI Br Gamma emission, or K band continuum veiling. These radial velocity outliers may represent protostellar spectroscopic binaries or ejected cluster members.
description: 9 pages in emulate ApJ format, accepted for publication in AJ
Mudança da composição agrícola em duas regiões de Minas Gerais
Creators: name: Santos, Fernando Antonio Agra
name: Faria, Roberto Araujo De
name: Teixeira, Erly Cardoso
name: Santos, Fernando Antonio Agra
name: Faria, Roberto Araujo De
name: Teixeira, Erly Cardoso
Publisher: name: Unknown
Year: 2008
Subjects: subject: Agribusiness
subject: Agricultural composition
subject: scale effect
subject: substitution effect.

description: This work analyzes the changes in area under cultivation that occurred between 1985 and 1995/1996 in the meso-regions Triângulo Mineiro/Alto Paranaíba and Zona da Mata in the state of Minas Gerais, Brazil. The analysis was conducted in two methodological stages. First, variation in the area under cultivation for a particular crop was disaggregated into variation due to change in regional agricultural scale and variation due to the substitution effect. Second, an econometric model of the crop that had the greatest growth in cultivated area and highest substitution effect index was developed to identify the main factors responsible for these high figures. It is observed that the area under rice cultivation was reduced in all regions, a fact related to the high cost of production. Coffee cultivation expanded in Manhuaçu, due mainly to the area’s favorable climate and topography, and the area devoted to pasture expanded the most. It is stressed that the amount of land devoted to pasture increased as labor became more scarce: a 1% reduction in labor availability lead to a 0.8% increase in pasture.
Study to supply Hydrogen at Gas Stations
Creators: name: Matheus Rosa Stelmach
name: Vinícius Timm Dos Santos
name: Jocemar Felício Bueno
name: Souza, José De
name: Rossini, Elton Gimenez
name: Beluco, Alexandre
Publisher: name: figshare
Year: 2020
Subjects: subject: Mechanical Engineering
subject: FOS: Mechanical engineering
subject: 91305 Energy Generation, Conversion and Storage Engineering

description: This paper presents a study on the adaptation of fuel stations to hydrogen fuel, which has recently been gaining ground in the automotive industry because it is used as fuel in hydrogen cells to power the car engine, causing no exhaust gases greenhouse to the earth's atmosphere. With this in mind, the group exposes as a solution to the problem of supplying large quantities of these cars, a possible adaptation of the fuel stations, starting from an electrolytic process fed by solar panels found in the cover of the fuel station, in order separate the hydrogen of water. Scientific articles were used as an aid to this research.
Multiparticle amplitudes at one-loop: an algebraic/numeric approach
Creators: name: Binoth, T.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We discuss algebraic/numeric methods to compute one-loop corrections for multiparticle/jet production cross sections. By using efficient reduction algorithms a compact expression for the gggγγ-> 0 amplitude is obtained. Further a numerical approach for 6-point 1-loop diagrams is presented.
description: 5 pages, Talk given at the 7th DESY Workshop On Elementary Particle Theory: Loops And Legs In Quantum Field Theory, Zinnowitz, Germany, 25-30 Apr 2004
On the conservation of second-order cosmological perturbations in a scalar field dominated universe
Creators: name: Vernizzi, Filippo
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We discuss second-order cosmological perturbations on super-Hubble scales, in a scalar field dominated universe, such as during single field inflation. In this contest we show that the gauge-invariant curvature perturbations defined on uniform density and comoving hypersurfaces coincide and that perturbations are adiabatic in the large scale limit. Since it has been recently shown that the uniform density curvature perturbation is conserved on large scales if perturbations are adiabatic, we conclude that both the uniform density and comoving curvature perturbations at second-order, in a scalar field dominated universe, are conserved. Finally, in the light of this result, we comment on the variables recently used in the literature to compute non-Gaussianities.
description: 4 pages, revised version accepted for publication on Phys. Rev. D
Fluorescence imaging of tumour hypoxia in xenograft tumour models
Creators: name: Sobhanifar, Solmaz
Publisher: name: University of British Columbia
Year: 2009

description: Hypoxic cells in solid tumours are known to resist radiotherapy as well as forms of chemotherapy. Hypoxia is also believed to promote tumour aggressiveness and metastasis. It is therefore important to develop a practical method to identify hypoxic tumour cells in order to assess which patients could benefit from hypoxic cell-targeted therapies. The goal of this study was to develop an immunohistochemical approach to the detection of hypoxia in xenograft models that may be applied to clinical samples. The hypotheses to be tested were that areas of chronic or transient hypoxia could be distinguished based on specific patterns of hypoxia markers, and that HIF-1α could be comparable as a hypoxia marker to pimonidazole. The objectives were: 1) to characterise the kinetics of development under anoxia and loss upon reoxygenation of the exogenous hypoxia marker pimonidazole and the endogenous hypoxia marker HIF-1α, 2) to use quantitative fluorescence image analysis to compare patterns of pimonidazole binding and HIF-1α expression in WiDr, SiHa and M006 human tumour xenografts, and to measure marker response under various oxygen- breathing conditions, and 3) to compare hypoxia marker patterns in xenograft tumours with patterns observed in cervical cancer biopsies. HIF-1α and pimonidazole colocalised in regions distant from blood vessels; perinecrotic regions however showed pimonidazole binding but no HIF-la expression. This lack was not a result of anoxia but likely a result of glucose and serum starvation. With time after pimonidazole administration, the extent of colocalisation with HIF-1α was reduced from 60% at 90min to 7% at 48hr, consistent with the movement of pimonidazole-labelled cells into necrosis. Patterns of HIF-1α and pimonidazole binding in clinical samples confirmed the dissociation between the markers when pimonidazole was administered 24hr before tumour excision. Overall our xenograft results indicated HIF-1α to be a reliable indicator of tumour hypoxia; however, it over-estimated radiobiological hypoxia (<1% O2) and was not expressed in the most hypoxic regions of tumours. The kinetics of marker development and loss, and occasional regions expressing one but not the other marker indicated that HIF-1α in combination with pimonidazole has the potential to measure the presence of transient hypoxia.
Os empregados da agricultura brasileira: diferenciais e determinantes salariais
Creators: name: Cunha, Marina Silva Da
name: Cunha, Marina Silva Da
Publisher: name: Unknown
Year: 2008
Subjects: subject: Agribusiness
subject: wages
subject: Heckman
subject: decomposition of Oaxaca.

description: This work studies the wage differentials and determinants of the employees in Brazilian agriculture, in period 1981-2005, on the basis of the information of the National Research for Sample of Domiciles of the IBGE. The methodology of Heckman is used to correct bias of selection, common in wage equations gotten by Least Ordinary Square, besides the decomposition of Oaxaca-Blinder, to analyze the wage differentials between 1981 and 2005. Between wage determinants, had been analyzed: education, experience, region, weekly working time and formal work, besides some macroeconomic determinants. The results of the work suggest a reduction of the wage differentials, mainly in the end of the studied period, and that the variable education, age and formal work had contributed to reduce the wage differentials between 1981 and 2005; and on the other hand, the variable geographic region and weekly working time, had contributed to increase them. Moreover, the macroeconomic variables included in the analysis were statistical significant in the explanation of the agricultural differentials.
Additional file 2 of Observation of the natural course of type 3 spinal muscular atrophy: data from the polish registry of spinal muscular atrophy
Creators: name: Lusakowska, Anna
name: Jedrzejowska, Maria
name: Kaminska, Anna
name: Janiszewska, Katarzyna
name: Przemysław Grochowski
name: Zimowski, Janusz
name: Sierdzinski, Janusz
name: Kostera-Pruszczyk, Anna
Publisher: name: figshare
Year: 2021
Subjects: Medicine
Developmental Biology
Marine Biology
Science Policy

description: Additional file 2. Probability of being able to walk after the indicated disease durations disease for patients with SMA3 and three or four copies of SMN2 separately, and by SMA3a (age of onset
Relações sinérgicas e efeitos sobre a produção setorial no sistema inter-regional Paraná-Restante do Brasil
Creators: name: Rodrigues, Rossana Lott
name: Moretto, Antonio Carlos
name: Sesso Filho, Umberto Antonio
name: Kureski, Ricardo
name: Rodrigues, Rossana Lott
name: Moretto, Antonio Carlos
name: Sesso Filho, Umberto Antonio
name: Kureski, Ricardo
Publisher: name: Unknown
Year: 2008
Subjects: subject: Agribusiness
subject: input-output
subject: synergic interactions
subject: overflow of the production
subject: regional economy.

description: The present article has as objective to calculate and to analyze the level of the synergic interactions and the overflow of the multiplying effect of the sectorial production between Parana and the Rest of Brazil (Brazil except Parana), using interregional systems of input-output estimated for the years of 1995 and 2000. The main results showed that : a) the dependence of the production of Parana in relation to the flow of trade with the Rest of Brazil raised from 25% in 1995 to 33% in 2000; b) only 1.36% of the production of the Rest of Brazil depended on the flow of input (goods and services) between this and Parana in 1995, reducing this dependence to 0,56% in 2000; c) the overflowing average of the multiplier effect of the production of the sectors of the economy of Parana in direction of the Rest of Brazil raised from 16% in 1995 to 20% in 2000, while in direction of the Rest of Brazil-Parana, it kept on 1%.
Ground state and low-lying excitations of the spin-1/2 XXZ model on the kagome lattice at magnetization 1/3
Creators: name: Honecker, A.
name: Cabra, D. C.
name: Grynberg, M. D.
name: Holdsworth, P. C. W.
name: Pujol, P.
name: Richter, J.
name: Schmalfuß, D.
name: Schulenburg, J.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study the ground state and low-lying excitations of the S=1/2 XXZ antiferromagnet on the kagome lattice at magnetization one third of the saturation. An exponential number of non-magnetic states is found below a magnetic gap. The non-magnetic excitations also have a gap above the ground state, but it is much smaller than the magnetic gap. This ground state corresponds to an ordered pattern with resonances in one third of the hexagons. The spin-spin correlation function is short ranged, but there is long-range order of valence-bond crystal type.
description: 2 pages, 1 figure included, to appear in Physica B (proceedings of SCES'04)
Predicting the Brain Activation Pattern Associated With the Propositional Content of a Sentence: Modeling Neural Representations of Events and States
Creators: name: Wang, Jing
name: Cherkassky, Vladimir
name: Just, Marcel
Publisher: name: Carnegie Mellon University
Year: 2020
Subjects: Neuroscience

description: Even though much has recently been learned about the neural representation of individual concepts and categories, neuroimaging research is only beginning to reveal how more complex thoughts, such as event and state descriptions, are neurally represented. We present a predictive computational theory of the neural representations of individual events and states as they are described in 240 sentences. Regression models were trained to determine the mapping between 42 neurally plausible semantic features (NPSFs) and thematic roles of the concepts of a proposition and the fMRI activation patterns of various cortical regions that process different types of information. Given a semantic characterization of the content of a sentence that is new to the model, the model can reliably predict the resulting neural signature, or, given an observed neural signature of a new sentence, the model can predict its semantic content. The models were also reliably generalizable across participants. This computational model provides an account of the brain representation of a complex yet fundamental unit of thought, namely, the conceptual content of a proposition. In addition to characterizing a sentence representation at the level of the semantic and thematic features of its component concepts, factor analysis was used to develop a higher level characterization of a sentence, specifying the general type of event representation that the sentence evokes (e.g., a social interaction versus a change of physical state) and the voxel locations most strongly associated with each of the factors
Valoração contingente da Área de Proteção Ambiental (APA) São José – MG: um estudo de caso
Creators: name: Cirino, Jader Fernandes
name: Lima, Joao Eustaquio De
name: Cirino, Jader Fernandes
name: Lima, Joao Eustaquio De
Publisher: name: Unknown
Year: 2008
Subjects: subject: Agribusiness
subject: São José EPA
subject: contingent valuation
subject: environmental valuation
subject: willingness-to-pay.

description: The São José Environmental Protection Area (EPA) in the State of Minas Gerais has a rich natural and historical patrimony. However, in spite of its value and of being a protection area since 1981, it has now suffering several degradations. In that sense, the major objective of this work is to value São José EPA with the purpose of supplying subsidies for the elaboration and attainment of public and private projects of preservation or sustainable exploration of the referred asset, as well as for public policy directed to its administration. As valuation method, it was used the contingent valuation through the approach of Hanemann (1984) and the bootstrapping method to obtain a monthly willingness-to-pay (WTP) per family of the municipal districts that compose São José EPA of R$22,88, with a relatively low standard-error, R$3,25. As for the reliability of the estimate measure, stands out the concern of the present work in trying to avoid or to minimize the bias that usually happen in researches of environmental valuation.
Non-extensive Boltzmann Equation and Hadronization
Creators: name: Biro, T. S.
name: Purcsel, G.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: For a general, associative addition rule defining a non-extensive thermodynamics we construct the strict monotonic function, which transforms it to an additive quantity. We investigate the evolution of one-particle distributions in the framework of a two-body Boltzmann equation supported with a non-extensive energy addition rule. In particular we study the emergence of a Tsallis distribution as a stationary solution. We propose that for describing the hadronization of quark matter non-extensive rules may apply.
description: 5 pages 2 figures LaTeX, v2: more references
Additional file 1 of Observation of the natural course of type 3 spinal muscular atrophy: data from the polish registry of spinal muscular atrophy
Creators: name: Lusakowska, Anna
name: Jedrzejowska, Maria
name: Kaminska, Anna
name: Janiszewska, Katarzyna
name: Przemysław Grochowski
name: Zimowski, Janusz
name: Sierdzinski, Janusz
name: Kostera-Pruszczyk, Anna
Publisher: name: figshare
Year: 2021
Subjects: Medicine
Developmental Biology
Marine Biology
Science Policy

description: Additional file 1. Probability of being able to walk after the indicated disease durations for all patients with SMA3, SMA3a, and SMA3b, and by sex.
Systematic review: Expository intervention for LLD (Peterson et al., 2020)
Creators: name: Peterson, Amy K.
name: Fox, Carly B.
name: Israelsen, Megan
Publisher: name: ASHA journals
Year: 2020
Subjects: Education
Language

description: Purpose: This systematic review synthesized a set of peer-reviewed studies published between 1985 and 2019 and addressed the effectiveness of existing narrative and expository discourse interventions for late elementary– and middle school–aged students with language-related learning disabilities.Method: A methodical search of the literature for interventions targeting expository or narrative discourse structure for students aged 9–14 years with group experimental designs identified 33 studies, seven of which met specific criteria to be included in this review.Results: An 8-point critical appraisal scale was applied to analyze the quality of the study design, and effect sizes were calculated for six of the seven studies; equivocal to small effects of far-transfer outcomes (i.e., generalizability to other settings) and equivocal to moderate near-transfer outcomes (i.e., within the treatment setting) were identified. The most effective intervention studies provided explicit instruction of expository texts with visual supports and student-generated learning materials (e.g., notes or graphic organizers) with moderate dosage (i.e., 180–300 min across 6–8 weeks) in a one-on-one or paired group setting. Greater intervention effects were also seen in children with reading and/or language disorders, compared to children with overall academic performance difficulties.Conclusions: A number of expository discourse interventions showed promise for student use of learned skills within the treatment setting (i.e., near-transfer outcomes) but had limited generalization of skills (i.e., far-transfer outcomes).
Supplemental Material S1. REDCap Codebook with inclusion/exclusion criteria for full-text screening.
Peterson, A. K., Fox, C. B., & Israelsen, M. (2020). A systematic review of academic discourse interventions for school-aged children with language-related learning disabilities. Language, Speech, and Hearing Services in Schools. Advance online publication. https://doi.org/10.1044/2020_LSHSS-19-00039
Winner takes most: assessing the impact of the digital age on firm size, market power and competition
Creators: name: Anthony McMahon, Michael
Publisher: name: University of Limerick
Year: 2024
Subjects: classificationCode: 38
subject: Economics

description: Rising concentration and markups across multiple developed economies has brought issues of competition and market power to the fore. This thesis contributes to that debate by examining if changing production dynamics brought about by the development of digital technologies are having heterogeneous impacts on firms of different sizes, thereby changing the balance of competition between larger and smaller firms.The thesis assesses changing competitive dynamics by examining the evolution of markups and multifactor productivity (MFP) across firms of different sizes. It finds that size is positively related to markups, and that this relationship has strengthened over time. It also identifies an increase in the relative productivity advantage of larger firms. Both changes are more pronounced in digital intensive industries, suggesting that digitalisation may be a driver.It then examines the means by which digitalisation may be impacting competition by assessing changing production dynamics and their impact on the benefits of scale. Specifically, it examines the links between digitalisation and the growth of intangible investment more broadly, and how this is related to changing production dynamics.The thesis finds that firm-level intangible investments have grown significantly, and have become a larger element of production functions (especially in digital intensive industries). The marginal impact of intangible assets on profitability is significantly greater for the leading firms in an industry, consistent with greater scalability of intangible assets. More granular firm-level analysis across five different size groups indicates that the marginal impact of intangibles on profitability increases systematically with size, with the impact more pronounced in digital intensive industries. In addition, industry level analysis shows that intangible intensity is a significant factor in determining profitability gaps between industry leaders and laggards.In addition, the thesis examines if digitalisation and intangible assets more broadly are impacting corporate tax revenues. It finds that firms in digital intensive industries have slightly lower cash effective tax rates, though the impact is relatively modest.Finally, the thesis examines potential policy recommendations. A key finding is that there are no ‘one size fits all’ policy measures when it comes to promoting digitalisation. Policymakers must recognise the heterogeneous impacts of technological investments on firms of different sizes by adopting more tailored policy measures. For example, governments can assist smaller firms through measures such as encouraging SME training and upskilling, promoting alternative sources of finance, assisting with digital security issues, and encouraging cloud-based solutions.
Content and Context Features for Scene Image Representation
Creators: name: Sitaula, Chiranjibi
name: Aryal, Sunil
name: Xiang, Yong
name: Basnet, Anish
name: Lu, Xuequan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Existing research in scene image classification has focused on either content features (e.g., visual information) or context features (e.g., annotations). As they capture different information about images which can be complementary and useful to discriminate images of different classes, we suppose the fusion of them will improve classification results. In this paper, we propose new techniques to compute content features and context features, and then fuse them together. For content features, we design multi-scale deep features based on background and foreground information in images. For context features, we use annotations of similar images available in the web to design a filter words (codebook). Our experiments in three widely used benchmark scene datasets using support vector machine classifier reveal that our proposed context and content features produce better results than existing context and content features, respectively. The fusion of the proposed two types of features significantly outperform numerous state-of-the-art features.
description: Submitted to Knowledge-Based Systems (Elsevier) for consideration
Data transmission schemes for a new generation of interactive digital television
Creators: name: Azimi, Mehran
Publisher: name: University of British Columbia
Year: 2009

description: Interactive television (ITV) is an attractive technology, which changes the way TV viewers experience home entertainment. In this thesis, we design an interactive television system, which truly gives TV viewers freedom to control and individualize the presentation of TV program content. In this context, we present methods that add extra video and audio streams (called incidental streams) containing interactive content, to the transmission line of a digital TV system. The addition of these extra streams does not result in increasing the transmission bandwidth, nor in degrading the picture or sound quality of the main TV program content. Our design consists of two major transmission mechanisms for transmitting the incidental data, called deterministic and stochastic service classes. The deterministic service class is designed such that no incidental stream data packet is lost during transmission. On the other hand, the stochastic service class is designed such that some incidental data loss is possible; however, the data loss rate is bounded. We present a strategy based on scalable video coding, which in conjunction with the deterministic and stochastic service classes, achieves the best possible picture and sound quality for the incidental streams under the constraint of available bandwidth. We also present data transmission methods for the deterministic and the stochastic service classes. In the context of the deterministic service class, we employ a deterministic traffic model for modelling the traffic of main streams, and then design a data transmission scheme based on the 'Network Calculus' theory. In the context of the stochastic service class, we employ Hidden Semi- Markov Models (HSMM) for modelling the traffic of main streams. We then design a data transmission scheme based on the 'Effective Bandwidth' theory. Furthermore, we design a data multiplexing system for the transmitter head-end of the proposed interactive TV system. This includes a novel scheduling algorithm for controlling the multiplexing of incidental and main streams data packets. We present numerical results of simulation experiments, which support the theoretical methods presented in this thesis.
Photodissociation and the Morphology of HI in Galaxies
Creators: name: Allen, Ronald J.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Young massive stars produce Far-UV photons which dissociate the molecular gas on the surfaces of their parent molecular clouds. Of the many dissociation products which result from this ``back-reaction'', atomic hydrogen \HI is one of the easiest to observe through its radio 21-cm hyperfine line emission. In this paper I first review the physics of this process and describe a simplified model which has been developed to permit an approximate computation of the column density of photodissociated \HI which appears on the surfaces of molecular clouds. I then review several features of the \HI morphology of galaxies on a variety of length scales and describe how photodissociation might account for some of these observations. Finally, I discuss several consequences which follow if this view of the origin of HI in galaxies continues to be successful.
description: 18 pages, 7 figures in 8 files, invited review paper for the conference "Penetrating Bars Through Masks of Cosmic Dust: The Hubble Tuning Fork Strikes a New Note", South Africa, June 2004. Proceedings to be published by Kluwer, eds. D.L. Block, K.C. Freeman, I. Puerari, R. Groess, & E.K. Block
Natural Resource Dependence in Rural Mexico
Creators: name: Lopez-Feldman, Alejandro
name: Taylor, J. Edward
name: Yunez-Naude, Antonio
name: Lopez-Feldman, Alejandro
name: Taylor, J. Edward
name: Yunez-Naude, Antonio
Publisher: name: Unknown
Year: 2010
Subjects: subject: Community/Rural/Urban Development
subject: Environmental Economics and Policy
subject: International Development
subject: Resource extraction
subject: Dependence
subject: Poverty
subject: Mexico

description: The relationship between poverty and natural resources is complex and the empirical evidence to date, mostly from studies of forest activities and poverty, is inconclusive. The main purpose of this paper is to empirically identify the effects of household characteristics and of inequality at the village level on natural resource extraction and dependence. To do so we use data from the Mexico National Rural Household Survey (ENHRUM). Our results show that in rural Mexico natural resource extraction is predominantly an activity carried out by poor households. The same is true for dependence. We also show that there are important differences across Mexico in terms of both participation and dependence on resource income. These differences are most evident when one compares the south and north of the country. We also show that when relatively rich households participate in resource extraction their natural resource income is considerably higher than that of the poor.
Correlated hybridization in transition metal complexes
Creators: name: Huebsch, A.
name: Lin, J. C.
name: Pan, J.
name: Cox, D. L.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We apply local orbital basis density functional theory (using SIESTA) coupled with a mapping to the Anderson impurity model to estimate the Coulomb assisted or correlated hybridization between transition metal d-orbitals and ligand sp-orbitals for a number of molecular complexes. We find remarkably high values which can have several physical implications including: (i) renormalization of effective single band or multiband Hubbard model parameters for the cuprates and, potentially, elemental iron, and (ii) spin polarizing molecular transistors.
description: 5 pages, 2 figures and 1 table included, final version as published
O impacto do trabalho infantil no setor agrícola sobre a saúde
Creators: name: Nicolella, Alexandre Chibebe
name: Kassouf, Ana Lucia
name: Barros, Alexandre Lahóz Mendonça De
name: Nicolella, Alexandre Chibebe
name: Kassouf, Ana Lucia
name: Barros, Alexandre Lahóz Mendonça De
Publisher: name: Unknown
Year: 2008
Subjects: subject: Agribusiness
subject: child labor
subject: health
subject: pseudo-panel

description: The aim of this dissertation is to identify the causal relation between rural child labour and health. The analysis utilized the PNAD, a Brazilian household survey, from 1998 and 2003. The econometric modeling was based on the pseudo-panel approach and was considered the children from 5 to 15 years old in 1998 and from 10 to 20 years old in 2003. The results show that work and work in risky jobs in the agricultural sector do not differ from those impacts of other sectors. It was also presented, for all individuals that work in the agricultural sector does not impact the health capital and work in the non rural sector impact negatively the health capital. So, the government intervention in rural areas should be different from the one implemented on the urban area to mitigate the impact of child labour on health and also, the government intervention should be implemented in parallel with the improvement of the access to the health system, drugs policies, maternal health education program.
Impactos econômicos e ambientais decorrentes do estado de conservação das rodovias brasileiras: um estudo de caso
Creators: name: Bartholomeu, Daniela Bacchi
name: Caixeta Filho, Jose Vicente
name: Bartholomeu, Daniela Bacchi
name: Caixeta Filho, Jose Vicente
Publisher: name: Unknown
Year: 2008
Subjects: subject: Agribusiness
subject: Transporte rodoviário de cargas
subject: Benefícios econômicos
subject: Benefícios ambientais
subject: Emissões de CO2

description: This article evaluates economic and environmental impacts of Brazilian highway conditions. The economic benefits evaluated were : diesel consumption, travel time and vehicle maintenance; the environmental benefits evaluated were the reduction on negative externalities related to decrease on carbon dioxide (CO2) emissions. Primary computer collected data related to the trucks performances on highways with different infrastructure conditions. The data were derived from 20 trips over 2 routes, each route representative of one of two highway conditions: better or worse (Campo Grande to Santos, and Rondonópolis to Campo Grande). The results had confirmed economics and environmental benefits resulting from travel over the better routes.
nnU-Net model weights for BraTS 2020 submission
Creators: name: Isensee, Fabian
Publisher: name: Zenodo
Year: 2021
Subjects: semantic segmentation, deep learning, nnU-Net, U-Net, medical image analysis, brain tumor segmentation

description: BraTS 2020 winning submission (segmentation task). Paper here: https://arxiv.org/abs/2011.00848 See the nnU-Net repository for information on how to use the weights (Link) Challenge Website: https://www.med.upenn.edu/cbica/brats2020/ Leaderboard: https://www.med.upenn.edu/cbica/brats2020/rankings.html
ESTIMATIVA DA DEMANDA DE ÁGUA RESIDENCIAL URBANA NO ESTADO DO CEARÁ
Creators: name: Fontenele, Raimundo Eduardo Silveira
name: Rosa, Antonio Lisboa Teles Da
name: Nogueira, Claudio Andre Gondim
name: Fontenele, Raimundo Eduardo Silveira
name: Rosa, Antonio Lisboa Teles Da
name: Nogueira, Claudio Andre Gondim
Publisher: name: Unknown
Year: 2009
Subjects: subject: Agribusiness
subject: Agricultural Finance
subject: Industrial Organization
subject: Demand
subject: Water
subject: Tariff
subject: Ceará

description: This study determined a function demand for residential water. The data were stratified by geographic areas according to the level of regularity of water supply to the households. Income, price, number of rooms and persons in the households were found to be the main variables influencing the level of water consumption. Differences between: i) households connected to the water and sewage systems and those connected only to the water system; ii) households with up to 20 m3 of water consumption and those with consumption between 20 and 50 m3 and finally those with consumption above 50 m3 were surveyed. The results of the residential water demand were, in general, statistically significant and the coefficients presented the expected sign. These results are important tools to help decide on the tariffs to be charged to the consumers and on the investments to be made in the sector.
Design study for an efficient semiconductor quantum light source operating in the telecom C-band based on an electrically-driven circular Bragg grating
Creators: name: Barbiero, Andrea
name: Huwer, Jan
name: Skiba-Szymanska, Joanna
name: Müller, Tina
name: Stevenson, R. Mark
name: Shields, Andrew J.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optics (physics.optics)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The development of efficient sources of single photons and entangled photon pairs emitting in the low-loss wavelength region around 1550 nm is crucial for long-distance quantum communication. Moreover, direct fiber coupling and electrical carrier injection are highly desirable for deployment in compact and user-friendly systems integrated with the existing fiber infrastructure. Here we present a detailed design study of circular Bragg gratings etched in InP slabs and operating in the telecom C-band. These devices enable the simultaneous enhancement of the X and XX spectral lines, with collection efficiency in NA=0.65 close to 90% for the wavelength range 1520-1580 nm and Purcell factor up to 15. We also investigate the coupling into single mode fiber, which exceeds 70% in UHNA4. Finally, we propose a modified device design directly compatible with electrical carrier injection, reporting Purcell factors up to 20 and collection efficiency in NA=0.65 close to 70% for the whole telecom C-band.
description: 6 pages, 3 figures
PERCEPÇÃO DE QUALIDADE NO PROCESSO PRODUTIVO DO LEITE: UM ESTUDO DE CASO NO RIO GRANDE DO SUL
Creators: name: Perin, Oinara Rubia
name: Ferreira, Gabriel Murad Velloso
name: Talamini, Edson
name: Perin, Oinara Rubia
name: Ferreira, Gabriel Murad Velloso
name: Talamini, Edson
Publisher: name: Unknown
Year: 2009
Subjects: subject: Agribusiness
subject: Agricultural Finance
subject: Industrial Organization
subject: Quality
subject: Milk Chain
subject: IN 51

description: The main objective of this work was to analyze the perception of quality in the milk production chain among farmers and the industry in a cooperative located at the north of Rio Grande do Sul state (Cooproleite). The mandatory milk production patterns at the farming level were identified based on the official government document “IN 51”. Then, the variations between expectations and perception related to those patterns were analyzed at the farming and industry levels. The research method used was the case study, which consisted of 514 active producing members of the cooperative, from which a random probability sample of 54 producers was extracted, and the 2 industries with which these producers market their product. The results show that milk production at the farmer level does not meet both their own expectations and the industry’s. The lower perception scores among the farmers were related to brucellosis and tuberculosis control, feed and milk cooling. For the industries, the milkers’ personal hygiene, discard of the first jets and washing of cows’ teats were the attributes perceived to have lower quality. In conclusion, we found that the variations of perceptions between the farming and the industry levels pose difficulties in establishing improvements and indicate the necessity of greater coordination in the production chain.
Oenopia billieti
Creators: name: POORANI, J.
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Coccinellidae
Oenopia
Oenopia billieti

description: 95. billieti (Mulsant, 1853a)
Distribution: India (Assam, Himachal Pradesh, Jammu & Kashmir, Meghalaya, Punjab, Sikkim, Uttar Pradesh, Uttarakhand); Bhutan; Nepal; Bangladesh; Tibet; China.
description: Published as part of POORANI, J., 2023, An illustrated guide to lady beetles (Coleoptera: Coccinellidae) of the Indian Subcontinent. Part 1. Tribe Coccinellini, pp. 1-307 in Zootaxa 5332 (1) on page 284, DOI: 10.11646/zootaxa.5332.1.1, http://zenodo.org/record/8261502
Machine learning of neural representations of suicide and emotion concepts identifies suicidal youth
Creators: name: Just, Marcel
name: Pan, Lisa
name: Cherkassky, Vladimir
name: McMakin, Dana
name: Cha, Christine
name: Nock, Matthew K.
name: Brent, David
Publisher: name: Carnegie Mellon University
Year: 2020
Subjects: Behavioral Neuroscience
Neuroscience

description: The clinical assessment of suicidal risk would be substantially complemented by a biologically based measure that assesses alterations in the neural representations of concepts related to death and life in people who engage in suicidal ideation. This study used machine-learning algorithms (Gaussian Naive Bayes) to identify such individuals (17 suicidal ideators versus 17 controls) with high (91%) accuracy, based on their altered functional magnetic resonance imaging neural signatures of death-related and life-related concepts. The most discriminating concepts were ‘death’, ‘cruelty’, ‘trouble’, ‘carefree’, ‘good’ and ‘praise’. A similar classification accurately (94%) discriminated nine suicidal ideators who had made a suicide attempt from eight who had not. Moreover, a major facet of the concept alterations was the evoked emotion, whose neural signature served as an alternative basis for accurate (85%) group classification. This study establishes a biological, neurocognitive basis for altered concept representations in participants with suicidal ideation, which enables highly accurate group membership classification.