cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Lifetime trauma and mortality risk: A systematic review
Creators: name: Buckley, Laura
name: Turiano, Nicholas
name: Sesker, Amanda
name: Butler, Marta
name: Ó Súilleabháin, Páraic
Publisher: name: University of Limerick
Year: 2024
Subjects: classificationCode: 52
subject: Psychology
subject: FOS: Psychology

description: Objective: Various literature are suggestive of a relation between lifetime trauma and mortality risk in adulthood, however, findings seem unclear and inconsistent. In our preregistered review, we conducted a systematic review to examine the association between lifetime trauma and mortality risk in adulthood. Method: Six databases (Scopus, Web of Science, CINAHL [EBSCO], PsycInfo [EBSCO], Embase, and Medline [PubMed]); were searched up to April 2023 for studies reporting adult mortality outcomes associated with traumatic events accumulated across the lifespan. Five studies were found, and a narrative review of the literature was conducted. Results: Five studies met the inclusion criteria, including 5,506 individuals. Two studies with men/male-only samples reported no relation between lifetime trauma and mortality risk; however, three studies with a mixed-sex sample found a positive relation between lifetime trauma and mortality risk, indicating that the more traumatic events a person has across their lifespan, the greater their mortality risk. Conclusion: Lifetime trauma appears to be associated with mortality risk during adulthood. The strongest evidence stems from larger samples. However, research is sparse and inconclusive. A plethora of additional research is needed to address several limitations within the current literature, which includes utilizing standardized measures of lifetime trauma, replication of effects, and the examination of vulnerable and underrepresented populations
Discovery of new 19.9-GHz methanol masers in star forming regions
Creators: name: Ellingsen, S. P.
name: Cragg, D. M.
name: Lovell, J. E. J.
name: Sobolev, A. M.
name: Ramsdale, P. D.
name: Godfrey, P. D.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We have used the NASA Tidbinbilla 70-m antenna to search for emission from the 2(1)-3(0)E 19.9-GHz transition of methanol. The search was targeted towards 22 star formation regions which exhibit maser emission in the 107.0-GHz 3(1)-4(0)A+ methanol transition, as well as in the 6.6-GHz 5(1)-6(0)A+ transition characteristic of class II methanol maser sources. A total of 7 sources were detected in the 19.9-GHz transition, 6 of these being new detections. Many of the new detections are weak (< 0.5 Jy), however, they appear to be weak masers rather than thermal or quasi-thermal emission. We find a strong correlation between sources which exhibit 19.9-GHz methanol masers and those which both have the class II methanol masers projected against radio continuum emission and have associated 6035-MHz OH masers. This suggests that the 19.9-GHz methanol masers arise in very specific physical conditions, probably associated with a particular evolutionary phase. In the model of (Cragg, Sobolev & Godfrey 2002) these observations are consistent with gas temperatures of 50 K, dust temperatures of 150-200 K and gas densities of 10^6.5-10^7.5 cm^-3.
description: 14 pages, 12 figures, landscape table in additional file, Accepted for publication in MNRAS
Critical exponents and universal excess cluster number of percolation in four and five dimensions
Creators: name: Zhang, Zhongjin
name: Hou, Pengcheng
name: Fang, Sheng
name: Hu, Hao
name: Deng, Youjin
Publisher: name: arXiv
Year: 2020
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study critical bond percolation on periodic four-dimensional (4D) and five-dimensional (5D) hypercubes by Monte Carlo simulations. By classifying the occupied bonds into branches, junctions and non-bridges, we construct the whole, the leaf-free and the bridge-free clusters using the breadth-first-search algorithm. From the geometric properties of these clusters, we determine a set of four critical exponents, including the thermal exponent $y_{\rm t} \equiv 1/ν$, the fractal dimension $d_{\rm f}$, the backbone exponent $d_{\rm B}$ and the shortest-path exponent $d_{\rm min}$. We also obtain an estimate of the excess cluster number $b$ which is a universal quantity related to the finite-size scaling of the total number of clusters. The results are $y_{\rm t} = 1.461(5)$, $d_{\rm f} = 3.044 \, 6(7)$, $d_{\rm B} = 1.984\,4(11)$, $d_{\rm min} = 1.604 \, 2(5)$, $b = 0.62(1)$ for 4D; and $y_{\rm t} = 1.743(10)$, $d_{\rm f} = 3.526\,0(14)$, $d_{\rm B} = 2.022\,6(27)$, $d_{\rm min} = 1.813\, 7(16)$, $b = 0.62(2)$ for 5D. The values of the critical exponents are compatible with or improving over the existing estimates, and those of the excess cluster number $b$ have not been reported before. Together with the existing values in other spatial dimensions $d$, the $d$-dependent behavior of the critical exponents is obtained, and a local maximum of $d_{\rm B}$ is observed near $d \approx 5$. It is suggested that, as expected, critical percolation clusters become more and more dendritic as $d$ increases.
description: 11 pages, 10 figures
Additional file 5 of ARTDeco: automatic readthrough transcription detection
Creators: name: Roth, Samuel J.
name: Heinz, Sven
name: Benner, Christopher
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 5 Supplementary Methods.
Greenhouse abatement policy: insights from the G-cubed multi-country model
Creators: name: McKibbin, Warwick J.
name: McKibbin, Warwick J.
Publisher: name: Unknown
Year: 1998
Subjects: Resource /Energy Economics and Policy

description: The third meeting of the Conference of the Parties of the Framework Convention on Climate Change held in Japan last December was a lost opportunity to set a realistic policy framework for addressing climate change in the coming decades. A number of countries proposed targets for greenhouse emissions, to be reached by a target date. The outcome was a range of different targets for each country. Analysis with the G‐cubed multi‐country model suggests that fixed targets are a costly way to address climate change. The extent of potential cost suggests the agreement will eventually fail. A better way to address climate change is to focus on uniformity in policy instruments that deliver differentiated outcomes rather than focus on differentiated policy settings.
Jupiter in the ultraviolet: acetylene and ethane abundances in the stratosphere of Jupiter from Cassini observations between 0.15 and 0.19 $μ$m
Creators: name: Melin, Henrik
name: Fletcher, Leigh N.
name: Irwin, Pat G. J.
name: Edgington, Scott G
Publisher: name: arXiv
Year: 2020
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: At wavelengths between 0.15 and 0.19 $μ$m, the far-ultraviolet spectrum of Jupiter is dominated by the scattered solar spectrum, attenuated by molecular absorptions primarily by acetylene and ethane, and to a lesser extent ammonia and phosphine. We describe the development of our radiative transfer code that enables the retrieval of abundances of these molecular species from ultraviolet reflectance spectra. As a proof-of-concept we present an analysis of Cassini Ultraviolet Imaging Spectrograph (UVIS) observations of the disk of Jupiter during the 2000/2001 flyby. The ultraviolet-retrieved acetylene abundances in the upper stratosphere are lower than those predicted by models based solely on infrared thermal emission from the mid-stratosphere observed by the Composite Infrared Spectrometer (CIRS), requiring an adjustment to the vertical profiles above 1 mbar. We produce a vertical acetylene abundance profile that is compatible with both CIRS and UVIS, with reduced abundances at pressures $
description: Accepted for publication in The Astronomical Journal 28 pages, 23 figures, 3 tables
Adaptive Context-Aware Multi-Modal Network for Depth Completion
Creators: name: Zhao, Shanshan
name: Gong, Mingming
name: Fu, Huan
name: Tao, Dacheng
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Depth completion aims to recover a dense depth map from the sparse depth data and the corresponding single RGB image. The observed pixels provide the significant guidance for the recovery of the unobserved pixels' depth. However, due to the sparsity of the depth data, the standard convolution operation, exploited by most of existing methods, is not effective to model the observed contexts with depth values. To address this issue, we propose to adopt the graph propagation to capture the observed spatial contexts. Specifically, we first construct multiple graphs at different scales from observed pixels. Since the graph structure varies from sample to sample, we then apply the attention mechanism on the propagation, which encourages the network to model the contextual information adaptively. Furthermore, considering the mutli-modality of input data, we exploit the graph propagation on the two modalities respectively to extract multi-modal representations. Finally, we introduce the symmetric gated fusion strategy to exploit the extracted multi-modal features effectively. The proposed strategy preserves the original information for one modality and also absorbs complementary information from the other through learning the adaptive gating weights. Our model, named Adaptive Context-Aware Multi-Modal Network (ACMNet), achieves the state-of-the-art performance on two benchmarks, {\it i.e.}, KITTI and NYU-v2, and at the same time has fewer parameters than latest models. Our code is available at: \url{https://github.com/sshan-zhao/ACMNet}.
Additional file 1 of Barriers and enablers to routine register data collection for newborns and mothers: EN-BIRTH multi-country validation study
Creators: name: Shamba, Donat
name: Day, Louise T.
name: Sojib Bin Zaman
name: Sunny, Avinash K.
name: Tarimo, Menna Narcis
name: Peven, Kimberly
name: Khan, Jasmin
name: Nishant Thakur
name: Md. Taqbir Us Samad Talha
name: Ashish, K.C.
name: Rajib Haider
name: Ruysen, Harriet
name: Mazumder, Tapas
name: Md. Hafizur Rahman
name: Md. Ziaul Haque Shaikh
name: Sæbø, Johan Ivar
name: Hanson, Claudia
name: Singh, Neha S.
name: Schellenberg, Joanna
name: Vaz, Lara M. E.
name: Requejo, Jennifer
name: Lawn, Joy E.
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Cancer
subject: Science Policy
subject: Hematology

description: Additional file 1. National context and number of births in EN-BIRTH study hospital.
Physics of accretion in the millisecond pulsar XTE J1751-305
Creators: name: Gierlinski, Marek
name: Poutanen, Juri
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We have undertaken an extensive study of X-ray data from the accreting millisecond pulsar XTE J1751-305 observed by RXTE and XMM-Newton during its 2002 outburst. In all aspects this source is similar to a prototypical millisecond pulsar SAX J1808.4-3658, except for the higher peak luminosity of 13 per cent of Eddington, and the optical depth of the hard X-ray source larger by factor ~2. Its broad-band X-ray spectrum can be modelled by three components. We interpret the two soft components as thermal emission from a colder (kT ~ 0.6 keV) accretion disc and a hotter (~1 keV) spot on the neutron star surface. We interpret the hard component as thermal Comptonization in plasma of temperature ~40 keV and optical depth of ~1.5 in a slab geometry. The plasma is heated by the accretion shock as the material collimated by the magnetic field impacts on to the surface. The seed photons for Comptonization are provided by the hotspot, not by the disc. The Compton reflection is weak and the disc is probably truncated into an optically thin flow above the magnetospheric radius. Rotation of the emission region with the star creates an almost sinusoidal pulse profile with rms amplitude of 3.3 per cent. The energy-dependent soft phase lags can be modelled by two pulsating components shifted in phase, which is naturally explained by a different character of emission of the optically thick spot and optically thin shock combined with the action of the Doppler boosting.
description: Accepted for publication in MNRAS, 15 pages, 16 figures (references corrected)
MODERN DIRECTIONS OF PIANO PERFORMANCE AND THEIR INTEGRATION INTO HIGHER EDUCATION PROGRAMS
Creators: name: Ikromova, Dilbar
Publisher: name: Zenodo
Year: 2025

description: This article analyzes new directions in modern piano performance and their integration into higher education programs. The combination of classical and modern techniques in piano performance, the development of jazz, pop and electro-acoustic performance and their inclusion in educational programs are discussed. Also, innovative pedagogical methods, interactive teaching methods and the influence of digital technologies aimed at improving students' performance skills are studied. The article presents foreign experiences, the Uzbek music education system and practical recommendations in the development of modern piano performance.
A gradient index metamaterial
Creators: name: Smith, D. R.
name: Mock, J. J.
name: Starr, A. F.
name: Schurig, D.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Metamaterials--artificially structured materials with tailored electromagnetic response--can be designed to have properties difficult to achieve with existing materials. Here we present a structured metamaterial, based on conducting split ring resonators (SRRs), which has an effective index-of-refraction with a constant spatial gradient. We experimentally confirm the gradient by measuring the deflection of a microwave beam by a planar slab of the composite metamaterial over a broad range of frequencies. The gradient index metamaterial represents an alternative approach to the development of gradient index lenses and similar optics that may be advantageous, especially at higher frequencies. In particular, the gradient index material we propose may be suited for terahertz applications, where the magnetic resonant response of SRRs has recently been demonstrated.
Additional file 2 of Barriers and enablers to routine register data collection for newborns and mothers: EN-BIRTH multi-country validation study
Creators: name: Shamba, Donat
name: Day, Louise T.
name: Sojib Bin Zaman
name: Sunny, Avinash K.
name: Tarimo, Menna Narcis
name: Peven, Kimberly
name: Khan, Jasmin
name: Nishant Thakur
name: Md. Taqbir Us Samad Talha
name: Ashish, K.C.
name: Rajib Haider
name: Ruysen, Harriet
name: Mazumder, Tapas
name: Md. Hafizur Rahman
name: Md. Ziaul Haque Shaikh
name: Sæbø, Johan Ivar
name: Hanson, Claudia
name: Singh, Neha S.
name: Schellenberg, Joanna
name: Vaz, Lara M. E.
name: Requejo, Jennifer
name: Lawn, Joy E.
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Cancer
subject: Science Policy
subject: Hematology

description: Additional file 2. Summary of qualitative research methods to assess barriers and enablers to labour/newborn ward register documentation, EN-BIRTH study.
TEORIA DE OPÇÕES REAIS E VIABILIDADE ECONÔMICO-FINANCEIRA DE PROJETOS AGROINDUSTRIAIS: O CASO DA OPÇÃO DE ABANDONO
Creators: name: Macedo, Marcelo Alvaro Da Silva
name: Nardelli, Paula Moreira
name: Macedo, Marcelo Alvaro Da Silva
name: Nardelli, Paula Moreira
Publisher: name: Unknown
Year: 2010
Subjects: subject: Consumer/Household Economics
subject: Opções Reais
subject: agronegócio
subject: viabilidade econômico-financeira
subject: projetos de investimento.

description: Objetivou-se, neste trabalho, analisar a viabilidade econômico-financeira de um projeto agroindustrial, por meio da Teoria de Opções Reais (TOR). A razão para a utilização da TOR vem de duas características importantes: a) a irreversibilidade e b) a possibilidade de abandono da decisão de investir. Essas características, juntamente com a incerteza sobre o futuro, fazem com que a oportunidade de investimento seja análoga a uma opção financeira. Por exemplo, uma empresa com uma oportunidade de investimento irreversível assume uma opção, ou seja, tem o direito - mas não a obrigação - de comprar um ativo (o projeto) no futuro, a um preço de exercício (o investimento). Com o intuito de aplicar esses conceitos, foi realizado um estudo de caso, que consiste em um projeto agroindustrial de processamento de frutas, no qual se pretende produzir sucos, polpas, geléias, doces e frutas desidratadas. A avaliação pretende demonstrar o valor das flexibilidades operacionais que esse projeto apresenta, como abandonar a sua implementação. Para isso, adotou-se a metodologia proposta por Copeland e Antikarov (2001), a que adiciona à avaliação tradicional de Fluxo de Caixa Descontado as Opções Reais que o projeto possui. O resultado obtido, para o valor presente líquido expandido do projeto, considerando as opções reais, concluiu que a opção de abandono não tem valor significativo, em um caso de investimentos praticamente irrecuperáveis.
Advanced characterisation of lithium-ion batteries using machine learning and physics-based simulation
Creators: name: Squires, Isaac
Publisher: name: Imperial College London
Year: 2024

description: Lithium-ion batteries are essential for addressing climate change. Developing cheaper, higher-performing, and longer-lasting batteries remains crucial for supporting an electrified future. Characterisation of electrode materials and electrochemical modelling are vital for understanding the relationship between manufacturing processes, structure, and battery function. This thesis applies novel machine learning approaches to overcome limitations in existing characterisation techniques, explores some of the assumptions of reduced-order modelling, and presents a pathway to accelerate 3D modelling. This work introduces an innovative tool that uses artificial intelligence to inpaint defects in micrographs, enabling the use of larger domains for simulation. Applied to a large dataset of images, this technique improved data quality by inpainting scale-bars and increased the dataset by 20%, enhancing the accuracy of subsequent machine learning models for battery research. Reduced-order electrochemical models are computationally efficient for simulating battery behaviour. The widely used Doyle-Fuller-Newman model assumes a separation of scales between micro- and macroscale features. However, in many real battery electrodes, this separation is limited. This thesis compares 3D and 1D simulations across varying scales, revealing conditions where traditional modelling may fail and highlighting the need for nuanced approaches in scenarios with minimal scale separation or high operational stress. Reduced-order models may not fully capture 3D battery dynamics. This thesis explores an approach to accelerating 3D modelling of voxel-based image data using GPU architectures and machine learning libraries for rapid matrix multiplication. The development and validation of this framework demonstrate its potential to outperform existing numerical approaches in capturing complex electrode behaviour, particularly for intricate geometries. This initial framework lays the groundwork for future advancements, which could significantly speed up 3D simulations of Li-ion battery electrochemistry.
Additional file 1 of Problematic internet use in children and adolescents: associations with psychiatric disorders and impairment
Creators: name: Restrepo, Anita
name: Tohar Scheininger
name: Clucas, Jon
name: Alexander, Lindsay
name: Salum, Giovanni A.
name: Georgiades, Kathy
name: Paksarian, Diana
name: Merikangas, Kathleen R.
name: Milham, Michael P.
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Biotechnology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 1. Contains tables of complementary analyses.
VARIÁVEIS RELEVANTES DO CONSUMIDOR DO CAFÉ SOLÚVEL SOB O ENFOQUE DA DIFERENCIAÇÃO
Creators: name: Moori, Roberto Giro
name: Bido, Diogenes De Souza
name: Oliveira, Luciel Henrique De
name: Moori, Roberto Giro
name: Bido, Diogenes De Souza
name: Oliveira, Luciel Henrique De
Publisher: name: Unknown
Year: 2010
Subjects: subject: Agribusiness
subject: Café solúvel
subject: gestão da cadeia de suprimentos
subject: consumidores de café solúvel.

description: Objetivou-se, neste estudo, identificar, junto aos consumidores, as variáveis que influenciam a frequência de consumo do café solúvel. Para tanto, foi realizada uma pesquisa de natureza exploratória do tipo explicativa constituída de duas etapas e participação de 211 respondentes no total. Os dados coletados, tratados por meio da modelagem em equações estruturais (PLS-PM), revelaram que as variáveis significantes para o consumo do café solúvel são: o hábito e a idade. A identificação dessas variáveis, desdobrada em atividades operacionais individuais constituem o ponto de partida para a análise da cadeia de valor do consumidor final ao produtor, permitindo assim, uma melhor efetividade nas formulações de estratégias empresariais e acurácia na previsão do consumo do café solúvel e, por consequência, a vantagem competitiva.
Simulation and queuing models for resoource allocation in the UBC Libraries
Creators: name: Knudsen, Cindy
Publisher: name: University of British Columbia
Year: 2009

description: This thesis describes two projects completed at the Centre for Operations Excellence (COE) for Darrell Bailie Manager, Finance and Facilities, and Dwight Tanner, Administrator, Special Projects of UBC Libraries. The cost of maintaining a sizable collection of reference material facilitates the need for UBC Library branches to be more cost effective. This thesis studies two services the library offers with this goal in mind. The first study considers the photocopier service available at Koerner Library. There are copy rooms on four floors of the library with different levels of demand. Furthermore, the peak demand for the photocopiers occurs for only a short period. Queueing theory and simulation are used to model the system to determine the optimal number of photocopiers needed in each copy room to meet the peak demand, while still maintaining an acceptable service level. This thesis shows a reduction in photocopiers is feasible for Koerner Library and offers two types of charts to use when making decisions on size and allocation of the photocopier fleet. The first chart quantifies changes in the mean time in the system (i.e. the mean waiting time and service time), the mean time in the queue, the mean queue length, and the utilization of the photocopiers when the number of photocopiers on a floor is decreased or increased from the current number of photocopiers. The second chart indicates how many photocopiers are needed to meet a certain level of customer service, for each Copy room. The second study considers the services offered at circulation desks in Koerner Library, Woodward Biomedical Library, and David Lam Library and the self-charge machines at Koerner Library. The demand for their circulation desks is variable not only throughout the day, but also throughout the week and the year. Demand is assessed and grouped into similar periods. Queueing theory is used to determine a staffing schedule to satisfy the demand for each of these periods, while still maintaining an acceptable service level. With the selfcharge machine, a patron can check out his/her own material, thereby circumventing the circulation desk. This thesis shows the reliability of the machines is very limited and a large number of patrons will have to continue their transactions at the circulation desk.
Theory of Microwave-Optical Conversion Using Rare-Earth Ion Dopants
Creators: name: Barnett, Peter S.
name: Longdell, Jevon J.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We develop a theoretical description of a device for coherent conversion of microwave to optical photons. For the device, dopant ions in a crystal are used as three-level systems, and interact with the fields inside overlapping microwave and optical cavities. We develop a model for the cavity fields interacting with an ensemble of ions, and model the ions using an open quantum systems approach, while accounting for the effect of inhomogeneous broadening. Numerical methods are developed to allow us to accurately simulate the device. We also further develop a simplified model, applicable in the case of small cavity fields which is relevant to quantum information applications. This simplified model is used to predict the maximum conversion efficiency of the device. We investigate the effect of various parameters, and predict that conversion efficiency of above 80% should be possible with currently existing experimental setups inside a dilution refrigerator.
description: 10 pages, 7 figures
MERCADO DE CRÉDITOS DE CARBONO NO BRASIL E O PAPEL DOS AGENTES INTERMEDIÁRIOS: DESAFIOS E OPORTUNIDADES
Creators: name: Zilber, Silvia Novaes
name: Koga, Eduardo
name: Zilber, Silvia Novaes
name: Koga, Eduardo
Publisher: name: Unknown
Year: 2010
Subjects: subject: Demand and Price Analysis
subject: Mercado de Créditos de Carbono
subject: Protocolo de Quioto
subject: Projetos de MDL (Mecanismo de Desenvolvimento Limpo)
subject: Alianças Estratégicas
subject: Terceirização.

description: O Protocolo de Quioto, ratificado em 1999, fixou metas de redução das emissões de Gases do Efeito Estufa - GEE na atmosfera. Uma das consequências desse protocolo é o surgimento do mercado de negociação de créditos de carbono e dos projetos de MDL (Mecanismo de Desenvolvimento Limpo). Objetivou-se, neste contexto, identificar os tipos de relações possíveis entre os agentes envolvidos no processo de negociação de CC, abordando-se alguns mecanismos de relacionamento entre empresas para a realização dos projetos MDL, como alianças estratégicas, joint ventures e terceirização. Para tal objetivo, utilizou-se a estratégia exploratória através de dois estudos de caso. Como resultados, observou-se que as empresas contratantes desses projetos no Brasil utilizam as empresas intermediárias como terceirizadas para o desenvolvimento desses projetos, dada sua maior expertise quanto ao assunto ou criam alianças estratégicas através de joint ventures quando a oportunidade de resultados financeiros futuros mostra-se vantajosa.
Open quantum systems
Creators: name: Isar, A.
name: Sandulescu, A.
name: Scutaru, H.
name: Stefanescu, E.
name: Scheid, W.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The damping of the harmonic oscillator is studied in the framework of the Lindblad theory for open quantum systems. A generalization of the fundamental constraints on quantum mechanical diffusion coefficients which appear in the master equation for the damped quantum oscillator is presented; the Schrödinger, Heisenberg and Weyl-Wigner-Moyal representations of the Lindblad equation are given explicitly. On the basis of these representations it is shown that various master equations for the damped quantum oscillator used in the literature are particular cases of the Lindblad equation and that not all of these equations are satisfying the constraints on quantum mechanical diffusion coefficients. The master equation is transformed into Fokker-Planck equations for quasiprobability distributions and a comparative study is made for the Glauber $P$ representation, the antinormal ordering $Q$ representation and the Wigner $W$ representation. The density matrix is represented via a generating function, which is obtained by solving a time-dependent linear partial differential equation derived from the master equation. The damped harmonic oscillator is applied for the description of the charge equilibration mode observed in deep inelastic reactions. For a system consisting of two harmonic oscillators the time dependence of expectation values, Wigner function and Weyl operator are obtained and discussed. In addition models for the damping of the angular momentum are studied. Using this theory to the quantum tunneling through the nuclear barrier, besides Gamow's transitions with energy conservation, additional transitions with energy loss, are found. When this theory is used to the resonant atom-field interaction, new optical equations describing the coupling through the environment are obtained.
description: 84 pages, review article
CONCENTRAÇÃO NA AGROINDÚSTRIA CANAVIEIRA MINEIRA DURANTE AS SAFRAS 1996/1997 A 2005/2006
Creators: name: Hersen, Amarildo
name: Shikida, Pery Francisco Assis
name: Dahmer, Vanessa De Souza
name: Hersen, Amarildo
name: Shikida, Pery Francisco Assis
name: Dahmer, Vanessa De Souza
Publisher: name: Unknown
Year: 2011
Subjects: subject: Land Economics/Use
subject: Economia canavieira
subject: economia mineira
subject: concentração de mercado.

description: Objetivou-se, neste trabalho, verificar a concentração na agroindústria canavieira do Estado de Minas Gerais, durante as safras 1996/ 1997 a 2005/2006. Os resultados (obtidos via CR4 e CR8, índices de Hirschmann-Herfindahl, de Rosenbluth e entropia) apontaram para um aumento da concentração da produção de cana. Esse aumento da concentração, dado principalmente mediante crescimento das empresas de grande porte, justifica-se pela reestruturação do setor baseada no aumento da competitividade.
BIOTSIDAL PREPARATLI MAXSUS POYABZAL ISHLAB CHIQISH VA ULARNI ANTIBAKTERIAL SAMARADORLIGINI BAHOLASH USULLARI
Creators: name: Muxammadusmonov S. Respublika imkoniyati cheklangan shaxslar uchun ixtisoslashtirilgan maxsus texnikumi ishlab chiqarish ta'limi ustasi
Publisher: name: Zenodo
Year: 2025

description: Ushbu maqolada yangi turdagi yaratilayotgan maxsus poyabzal uchun ishlatiladigan materiallarga biotsidal preparatini qo‘llab ularni bakteriyalar va zamburug‘larga qarshi kurashish   xususiyatlari yoritilgan.

Kalit so‘zlar: mikrob, zamburug‘,antibakterial xususiyatlar, charm, preparatlar bilan ishlov berish, samaradorlik ko‘rsatkichi
Connecting the dots : how male cardiac patients initate and sustain a heart-healthy lifestyle
Creators: name: Grimwood, Sandra Anne
Publisher: name: University of British Columbia
Year: 2009

description: 80% of Canadians are at risk for some form of heart disease, disease of the coronary arteries or disease of blood vessels throughout the body. Research has shown that lifestyle modification can reduce further cardiac events and interventions. However, little is documented about the process middle-aged men use to engage in a change of health behaviour. The purpose of this study was to explore and describe the specific types of behaviours that middle-aged men with coronary artery disease (CAD) engage in when initiating and sustaining a heart-healthy lifestyle Nine men with CAD who had engaged in lifestyle modification were interviewed. Using a grounded theory approach, data were derived from in-depth interviews and analyzed according to the constant comparative method. Findings revealed that, for the men in this study, initiating and sustaining a heart-healthy lifestyle was equivalent to the process of "Connecting the Dots". Connecting the Dots included the categories of Understanding Risk Factors, Negotiating/Seeking Support, and Getting Serious. Understanding risk factors encompassed two elements: making sense and confronting the disease. Having support, as the men, connected the dots provided help to initiate and sustain a change in health behaviour. Getting serious involved engaging in risk factor reduction by replacing unhealthy behaviours with health ones. A better understanding of how middle-aged men with CAD engage in a change of health behaviour, has implications for nursing practice, patient education, policy, and may provide direction for further research. Insight into the process used by middle-aged men to engage in lifestyle modification may contribute to the body of nursing knowledge about compliance with risk factor reduction, and will help nurses reach the ultimate goal of caring effectively for this unique population of cardiac patients.
The photographic portfolio
Creators: name: McLaughlin, S. (Samuel), 1826-1914
Publisher: name: Quebec : Middleton & Dawson
Year: 2016

description: [No. 1 (1858)]-

Frequency: Monthly

Ceased publication in 1860

"A Monthly View of Canadian scenes and scenery."

Each portfolio contains a single photograph printed using the collodion process, and a brief description of the image.
Destruction of the Kondo effect in a multi-channel Bose-Fermi Kondo model
Creators: name: Kirchner, Stefan
name: Zhu, Lijun
name: Si, Qimiao
Publisher: name: arXiv
Year: 2004
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We consider the SU(N) x SU(kappa N) generalization of the spin-isotropic Bose-Fermi Kondo model in the limit of large N. There are three fixed points corresponding to a multi-channel non-Fermi liquid phase, a local spin-liquid phase, and a Kondo-destroying quantum critical point (QCP). We show that the QCP has strong similarities with its counterpart in the single-channel model, even though the Kondo phase is very different from the latter. We also discuss the evolution of the dynamical scaling properties away from the QCP.
description: 2 papes, 2 figures, submittet to SCES'04
Additional file 4 of Barriers and enablers to routine register data collection for newborns and mothers: EN-BIRTH multi-country validation study
Creators: name: Shamba, Donat
name: Day, Louise T.
name: Sojib Bin Zaman
name: Sunny, Avinash K.
name: Tarimo, Menna Narcis
name: Peven, Kimberly
name: Khan, Jasmin
name: Nishant Thakur
name: Md. Taqbir Us Samad Talha
name: Ashish, K.C.
name: Rajib Haider
name: Ruysen, Harriet
name: Mazumder, Tapas
name: Md. Hafizur Rahman
name: Md. Ziaul Haque Shaikh
name: Sæbø, Johan Ivar
name: Hanson, Claudia
name: Singh, Neha S.
name: Schellenberg, Joanna
name: Vaz, Lara M. E.
name: Requejo, Jennifer
name: Lawn, Joy E.
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Cancer
subject: Science Policy
subject: Hematology

description: Additional file 4. Data Collector study guides in-depth interview (IDI), EN-BIRTH study.
Multi-wavelength observations of SDSS J105621.45+313822.1, a broad-line, low-metallicity AGN
Creators: name: Cann, Jenna M.
name: Satyapal, Shobita
name: Bohn, Thomas
name: Sexton, Remington O.
name: Pfeifle, Ryan W.
name: Manzano-King, Christina
name: Canalizo, Gabriela
name: Rothberg, Barry
name: Gliozzi, Mario
name: Secrest, Nathan J.
name: Blecha, Laura
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: In contrast to massive galaxies with Solar or super-Solar gas phase metallicities, very few Active Galactic Nuclei (AGN) are found in low-metallicity dwarf galaxies. Such a population could provide insight into the origins of supermassive black holes. Here we report near-infrared spectroscopic and X-ray observations of SDSS J105621.45+313822.1, a low-mass, low-metallicity galaxy with optical narrow line ratios consistent with star forming galaxies but a broad H$α$ line and mid-infrared colors consistent with an AGN. We detect the [Si VI] 1.96$μ$m coronal line and a broad Pa$α$ line with a FWHM of $850 \pm 25$~km~s$^{-1}$. Together with the optical broad lines and coronal lines seen in the SDSS spectrum, we confirm the presence of a highly accreting black hole with mass $(2.2 \pm 1.3) \times 10^{6}$~M$_{\odot}$, with a bolometric luminosity of $\approx10^{44}$~erg~s$^{-1}$ based on the coronal line luminosity, implying a highly accreting AGN. Chandra observations reveal a weak nuclear point source with $L_{\textrm{X,2-10 keV}} = (2.3 \pm 1.2) \times 10^{41}$~erg~s$^{-1}$, $\sim 2$ orders of magnitude lower than that predicted by the mid-infrared luminosity, suggesting that the AGN is highly obscured despite showing broad lines in the optical spectrum. The low X-ray luminosity and optical narrow line ratios of J1056+3138 highlight the limitations of commonly employed diagnostics in the hunt for AGNs in the low metallicity low mass regime.
description: 13 pages, 6 figures, accepted to ApJ
Early Universe Dynamics in Semi-Classical Loop Quantum Cosmology
Creators: name: Lidsey, James E.
Publisher: name: arXiv
Year: 2004
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics (astro-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Within the framework of loop quantum cosmology, there exists a semi-classical regime where spacetime may be approximated in terms of a continuous manifold, but where the standard Friedmann equations of classical Einstein gravity receive non-perturbative quantum corrections. An approximate, analytical approach to studying cosmic dynamics in this regime is developed for both spatially flat and positively-curved isotropic universes sourced by a self-interacting scalar field. In the former case, a direct correspondence between the classical and semi-classical field equations can be established together with a scale factor duality that directly relates different expanding and contracting universes. Some examples of non-singular, bouncing cosmologies are presented together with a scaling, power-law solution.
description: 14 pages, In Press, JCAP
Prospects of Bangladesh as a Leading Outsourcing Destination in IT Sector
Creators: name: IJMVSC
Publisher: name: Zenodo
Year: 2025

description: IT industry is becoming popular for the workers who want to do perform offshore or freelance job in business. World’s leading researchers have announced Bangladesh as a leading outsourcing destination. Bangladesh is prospecting with IT outsourcing in regard of human resources, financial and political stability, macro and micro level infrastructure and market positioning with a huge competition. Besides these factors, the scenario has changed a lot within the long history in Bangladesh’s IT industry since 1964. On the other side outsourcing is being the most popular method of doing things in least expensive way. IT outsourcing has the largest share in regard of job quantity. Technology has changed the world, and Bangladesh has a larger stake to compete with other market within IT outsourcing industry.
Gauge Independence and Chiral Symmetry Breaking in a Strong Magnetic Field
Creators: name: Leung, C. N.
name: Wang, S. -Y.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Astrophysics (astro-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: High Energy Physics - Theory (hep-th)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The gauge independence of the dynamical fermion mass generated through chiral symmetry breaking in QED in a strong, constant external magnetic field is critically examined. We present a (first, to the best of our knowledge) consistent truncation of the Schwinger-Dyson equations in the lowest Landau level approximation. We demonstrate that the dynamical fermion mass, obtained as the solution of the truncated Schwinger-Dyson equations evaluated on the fermion mass shell, is manifestly gauge independent.
description: 10 pages, 1 eps figure, version to appear in Annals of Physics
Additional file 5 of Barriers and enablers to routine register data collection for newborns and mothers: EN-BIRTH multi-country validation study
Creators: name: Shamba, Donat
name: Day, Louise T.
name: Sojib Bin Zaman
name: Sunny, Avinash K.
name: Tarimo, Menna Narcis
name: Peven, Kimberly
name: Khan, Jasmin
name: Nishant Thakur
name: Md. Taqbir Us Samad Talha
name: Ashish, K.C.
name: Rajib Haider
name: Ruysen, Harriet
name: Mazumder, Tapas
name: Md. Hafizur Rahman
name: Md. Ziaul Haque Shaikh
name: Sæbø, Johan Ivar
name: Hanson, Claudia
name: Singh, Neha S.
name: Schellenberg, Joanna
name: Vaz, Lara M. E.
name: Requejo, Jennifer
name: Lawn, Joy E.
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Cancer
subject: Science Policy
subject: Hematology

description: Additional file 5. Codebook Health Workers, EN-BIRTH study.
Report on full algorithm sequences for nanoparticle detection and size measurement as developed on both a physical basis and by machine learning (Deliverable D5)
Creators: name: Fontanges, Richard
name: Hodoroaba, Vasile-Dan
Publisher: name: Zenodo
Year: 2021
Subjects: algorithm sequences
physical basis
machine learning
nanoparticle detection
size measurement

description: The main objective of the nPSize project is to improve the measurement capabilities for nanoparticle size based on both measurement methods traceable to SI units and new reference materials. Two basic approaches have been used in order to develop measurement procedures resulting in traceable results of the nanoparticle size distribution: physical modelling for the methods used in the project (TSEM, SEM, AFM and SAXS) and machine learning.
 Physical modelling: In this part, the physical models associated with different shape measurements for the techniques TSEM, SEM, AFM and SAXS have been collected and further developed with the aim to simulate the resulting signal as measured by the individual methods. Uncertainties and traceability associated with each model were investigated and evaluated. In the following, the progress on these physical models is reported for each individual method.
 Machine Learning modelling: The aim of this part is to use machine learning to enable automatic measurement of nanoparticle shape from expert a-priori information only. No physical model will be used as a-priori information in this task.
 The accuracy and traceability of the size results obtained by each technique will be analyzed and compared with the physical modelling. A machine learning database will then be used to create automatic detection algorithms.
Control of Star Formation in Galaxies by Gravitational Instability
Creators: name: Li, Yuexing
name: Mac Low, Mordecai-Mark
name: Klessen, Ralf S.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We study gravitational instability and consequent star formation in a wide range of isolated disk galaxies, using three-dimensional, smoothed particle hydrodynamics simulations at resolution sufficient to fully resolve gravitational collapse. Stellar feedback is represented by an isothermal equation of state. Absorbing sink particles are inserted in dynamically bound, converging regions with number density $n > 10^3$ cm$^{-3}$ to directly measure the mass of gravitationally collapsing gas available for star formation. Our models quantitatively reproduce not only the observed Schmidt law, but also the observed star formation threshold in disk galaxies. Our results suggest that the dominant physical mechanism determining the star formation rate is just the strength of gravitational instability, with feedback primarily functioning to maintain a roughly constant effective sound speed.
description: ApJL accepted, version with high quality color images can be found in http://research.amnh.org/~yuexing/astro-ph/0407247.pdf
Statistical analysis of the microstructure between dynamic and static recovery
Creators: name: Sepulveda, Estefania
name: Kestens, Leo
name: Castro, Felipe
Publisher: name: Zenodo
Year: 2023

description: The warm rolling process gives rise to a recrystallization texture different than that obtained after cold rolling. This phenomenon is a product of the thermally activated recovery process. Static recovery leads to the development of γ fiber in recrystallization texture, on the other hand, dynamic recovery leads to the development of <001> fiber in recrystallization texture, i.e., the properties of the final product will not be the same.Electron backscatter diffraction (EBSD) is a technique that allows for obtaining statistically representative results and can offer a quantitative analysis of the development of the microstructure. The present work studies the behavior of local misorientations (misorientation gradient) in (sub)-the structure of three stored energy states of Interstitial Free Steel (IF Steel): Dynamic Recovery (80 % warm rolling reduction at 550 °C), cold rolling (80% reduction), and static recovery (80% reduction at 600°C). The misorientation gradient of <111> //ND and <001> //ND grains with 20 degrees of deviation and all deformed grains were analyzed in detail. It was observed that there is a difference in the misorientation gradient in the displacement of higher values of misorientation gradient for <111>//ND grains in relation to the <001> //ND grains, this is evidenced by a statistical point of view the difference in the stored energy of static and dynamic recovery.
EFICIÊNCIA ECONÔMICA NO SETOR SUCROALCOOLEIRO: UMA ANÁLISE DE ALGUMAS USINAS DO ESTADO DE SÃO PAULO
Creators: name: Camargo Junior, Alceu Salles
name: Oliveira, Marcio Mattos Borges De
name: Camargo Junior, Alceu Salles
name: Oliveira, Marcio Mattos Borges De
Publisher: name: Unknown
Year: 2011
Subjects: subject: Productivity Analysis
subject: Eficiência econômica
subject: investimentos e resultados financeiros
subject: produção de cana-de-açúcar
subject: DEA (análise por envoltória de dados).

description: No atual cenário global de busca por alternativas mais limpas e mais eficientes de energia, o etanol brasileiro pode desempenhar papel de grande importância não só internamente, mas também em nível internacional, na medida em que se apresenta como um biocombustível de alto balanço energético, além dos sistemáticos ganhos de produtividade nas últimas décadas, principalmente no estado de São Paulo. Por este trabalho, obtêm-se indicadores multicriteriais de eficiência empregando modelagem de análise envoltória de dados (DEA) para uma amostra de 38 usinas no estado de São Paulo, com boa representatividade no universo de usinas no referido estado. Dados dos balanços patrimoniais de 2006 como ativos permanentes, imobilizados e despesas figuram como variáveis de entrada, enquanto níveis de produção de cana moída, receita bruta e lucro operacional são empregados como variáveis de saída na modelagem DEA. Uma posterior análise de clusters identificou três grupos diferentes de usinas em relação à eficiência econômica. Mediante os testes de Kruskal-Wallis mostraram-se ser estatisticamente significativas as diferenças entre os níveis de eficiência econômica e os três clusters, devido principalmente à diferenças nos níveis de investimentos e alocação de ativos e não nas variáveis de resultado como produção de cana, receita bruta ou lucro operacional. Os resultados da pesquisa podem representar utilidade e implicações práticas para gerentes no setor sucroalcooleiro no sentido de fornecer parâmetros para comparações de desempenhos operacional e econômico entre usinas. Limitações e pesquisas futuras apresentam-se também.