cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Precise Irrigation Process Support by Using a Computer Based Algorithm of Heuristics
Creators: name: Palkova, Zusana
name: Rodny, Tomas
name: Okenka, Imrich
name: Palkova, Zusana
name: Rodny, Tomas
name: Okenka, Imrich
Publisher: name: Unknown
Year: 2012
Subjects: subject: Research and Development/Tech Change/Emerging Technologies
subject: Research Methods/ Statistical Methods
subject: Resource /Energy Economics and Policy
subject: Irrigation system
subject: queuing theory
subject: precise irrigation
subject: heuristic algorithms.

description: Optimization of production processes are required to provide companies with a competitive advantage. In the production industry this optimization is already under control and optimization of complex end-optimal models has been proposed. Using these model processes in agricultural production is inappropriate because they calculate exactly a process without the influence of random variables and factors. At the present time is usual to develop specific processes operating under ideal conditions. Their disadvantage is that real data from them vary considerably. Therefore, there is a need to develop simple methods and tools which can optimize these processes.
Solution of the local field equations for self-generated glasses
Creators: name: Wu, Sangwook
name: Schmalian, Joerg
name: Kotliar, Gabriel
name: Wolynes, Peter G
Publisher: name: arXiv
Year: 2003
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We present a self-consistent local approach to self generated glassiness which is based on the concept of the dynamical mean field theory to many body systems. Using a replica approach to self generated glassiness, we map the problem onto an effective local problem which can be solved exactly. Applying the approach to the Brazovskii-model, relevant to a large class of systems with frustrated micro-phase separation, we are able to solve the self-consistent local theory without using additional approximations. We demonstrate that a glassy state found earlier in this model is generic and does not arise from the use of perturbative approximations. In addition we demonstrate that the glassy state depends strongly on the strength of the frustrated phase separation in that model.
description: 11 pages, 3 figures
ORIENTAÇÕES PARA A ABORDAGEM DO DOENTE COM INFLAMAÇÃO OCULAR EM CONTEXTO DA PANDEMIA COVID-19
Creators: name: Sociedade Portuguesa De Oftalmologia
Publisher: name: Revista Sociedade Portuguesa de Oftalmologia
Year: 2020

description: Revista Sociedade Portuguesa de Oftalmologia, Vol. 43 N.º 4 (2019)
Flat-Band Ferromagnetism in Organic Polymers Designed by a Computer Simulation
Creators: name: Suwa, Yuji
name: Arita, Ryotaro
name: Kuroki, Kazuhiko
name: Aoki, Hideo
Publisher: name: arXiv
Year: 2003
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: By coupling a first-principles, spin-density functional calculation with an exact diagonalization study of the Hubbard model, we have searched over various functional groups for the best case for the flat-band ferromagnetism proposed by R. Arita et al. [Phys. Rev. Lett. {\bf 88}, 127202 (2002)] in organic polymers of five-membered rings. The original proposal (poly-aminotriazole) has turned out to be the best case among the materials examined, where the reason why this is so is identified here. We have also found that the ferromagnetism, originally proposed for the half-filled flat band, is stable even when the band filling is varied away from the half-filling. All these make the ferromagnetism proposed here more experimentally inviting.
description: 11 pages, 13figures
Metal-enriched Galaxies in the First ~1 Billion Years: Evidence of a Smooth Metallicity Evolution at z ~ 5
Creators: name: Poudel, Suraj
name: Kulkarni, Varsha P.
name: Cashman, Frances H.
name: Frye, Brenda
name: Peroux, Celine
name: Rahmani, Hadi
name: Quiret, Samuel
Publisher: name: arXiv
Year: 2019
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present seven new abundance measurements of the elements O, C and Si at z > 4.5, doubling the existing sample of weakly depleted elements in gas-rich galaxies, in order to constrain the first ~1 billion years of cosmic metal evolution. These measurements are based on quasar spectra of damped Lyman-alpha absorbers (DLAs) and sub-DLAs obtained with the Magellan Inamori Kyocera Echelle (MIKE) and Magellan Echellette (MagE) spectrographs on Magellan-South, and the X-Shooter spectrograph on the Very Large Telescope. We combine these new measurements with those drawn from the literature to estimate the NHI-weighted binned mean metallicity of -1.51 +\- 0.18 at z = 4.8. This metallicity value is in excellent agreement with the prediction from lower redshift DLAs, supporting the interpretation that the metallicity evolution is smooth at z ~ 5, rather than showing a sudden decline at z > 4.7. Furthermore, the metallicity evolution trends for the DLAs and sub-DLAs are similar within our uncertainties. We also find that the [C/O] ratios for z ~ 5 DLAs are consistent with those of the very metal-poor DLAs. Additionally, using [C/O] and [Si/O] to constrain the nucleosynthesis models, we estimate that the probability distributions of the progenitor star masses for three relatively metal-poor DLAs are centered around 12 M_{\odot} to 17 M_{\odot}. Finally, the z ~ 5 absorbers show a different metallicity-velocity dispersion relation than lower redshift DLAs, suggesting that they may be tracing a different population of galaxies.
description: 19 pages, 21 figures, accepted for publication in MNRAS
Additional file 9 of An improved bind-n-seq strategy to determine protein-DNA interactions validated using the bacterial transcriptional regulator YipR
Creators: name: An, Shi-Qi
name: Valvano, Miguel
name: Yu, Yan-Hua
name: Webb, Jeremy
name: Campos, Guillermo Lopez
Publisher: name: figshare
Year: 2020
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Molecular Biology
subject: 69999 Biological Sciences not elsewhere classified
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Developmental Biology

description: Additional file 9. Analysis Bind-n-seq data using macOS operating system.
Development of Agricultural Trade of Visegrad Group Countries in Relation to EU and Third Countries
Creators: name: Svatos, Miroslav
name: Smutka, Lubos
name: Svatos, Miroslav
name: Smutka, Lubos
Publisher: name: Unknown
Year: 2012
Subjects: subject: Agricultural Finance
subject: Community/Rural/Urban Development
subject: International Development
subject: International Relations/Trade
subject: Agricultural trade
subject: total trade
subject: share
subject: Visegrad group
subject: export
subject: import
subject: market
subject: world
subject: European Union
subject: competitiveness
subject: position
subject: structure
subject: commodities
subject: territories
subject: trend
subject: development.

description: Despite the continually growing value of agricultural trade of the Czech Republic, Hungary, Slovakia and Poland, agricultural trade in the case of all of the countries of the Visegrad group represents only a marginal part of the total merchandise trade. The agricultural trade of the individual analyzed countries is, both in terms of the commodity structure as well as the territorial structure, very distinctly concentrated. The overwhelming majority of agricultural trade – export as well as import – je conducted in relation to EU countries. These countries participate in agricultural trade of individual countries of the V4 group with a share of over 80%. If we focus on the actual objective of the article, which was to identify the comparative advantages of agricultural trade of the V4 countries in the area of commodity structure and territorial structure, both in relation to the global market, as well as in relation to EU27, the following may be stated. The agricultural trade of the Czech Republic, Slovakia and Hungary as a whole does not have comparative advantages either on the global market or on the internal market of the EU countries. However, Poland as the only representative of the V4 countries has comparative advantages in the field of agricultural trade, in relation to both the internal market of the EU countries, as well as in relation to the global market (to the market of third countries). If we focus on the territory of the EU27 countries, which represents the main trading partner of all of the analyzed countries, both in terms of exports as well as in terms of imports, it may be stated that despite the fact that the Czech Republic, Slovakia and Hungary do not have comparative advantages in the area of agricultural trade in regard to the EU as a whole, they are able to achieve comparative advantages at the level of bilateral relationships with individual member countries of the EU. This paper is part of a research project carried out within the framework of the grant no. 6046070906, funded by the Ministry of Education, Youth and Sports of the Czech Republic.
Eficácia profilática da brimonidina no pico tensional após injeção intra-vítrea de bevacizumab: ensaio clínico randomizado em cross-over
Creators: name: Brízido, Margarida
name: Lopes, Beatriz
name: Basílio, Ana Luisa
name: Simões, Pedro
name: Holanda, Helena
name: Rodrigues, João F
name: Miranda, Margarida
Publisher: name: Revista Sociedade Portuguesa de Oftalmologia
Year: 2020

description: Objetivos: Determinar a eficácia da brimonidina tópica na prevenção do pico de pressão intra-ocular (PIO) que ocorre após a injeção de fármacos intra-vítreos. Material e Métodos: Ensaio clínico randomizado, do tipo crossover, com inclusão de doentes submetidos a duas injeções intra-vítreas (IIV), em meses consecutivos, de bevacizumab. Aleatorização de cada doente para o grupo de controlo (sem profilaxia) ou para o grupo de intervenção (administração de uma gota de brimonidina, 20 minutos antes da IIV), com posterior cruzamento dos grupos, na segunda visita. Medição da PIO antes da IIV, imediatamente após (T0), 10 minutos (T10) e 20 minutos (T20) após a mesma. Resultados: Inclusão de 40 olhos de 40 doentes (80 IIV), com uma mediana de idades de 71,5 anos (32–83 anos), dos quais 40% eram do sexo feminino (n=16). Registada uma PIO média de 13,4 mmHg previamente à injeção (desvio padrão [DP] ±3,2; intervalo: 8-26). No grupo sem profilaxia, a PIO média em T0 foi de 35,6mmHg (DP:±11,6; intervalo:15-68,7), por oposição a uma PIO média em T0 de 30,7mmHg (DP:±10,2; intervalo:13,3-53,7), no grupo com profilaxia. Comparando os dois grupos, os doentes medicados profilaticamente com brimonidina apresentaram PIOs inferiores em T0 (PIO 14% mais baixa; p=0,0012), T10 (p=0,0016) e T20 (p<0,001). Não se registaram reações adversas do uso da brimonidina. Conclusões: Este estudo permitiu-nos demonstrar que a administração profilática de brimonidina antes da IIV é uma medida útil para atenuar o aumento de pressão verificado após a injeção.
description: Revista Sociedade Portuguesa de Oftalmologia, Vol. 43 N.º 4 (2019)
title: PASS-Befragungsdaten verknüpft mit administrativen Daten des IAB (PASS-ADIAB) 1975-2022
Creators: name: Dummert, Sandra
name: Sauer, Irakli
Publisher: name: Forschungsdatenzentrum der Bundesagentur für Arbeit im Institut für Arbeitsmarkt- und Berufsforschung
Year: 2024
Subjects: Data manual
German administrative micro data
labour market data
linked employer-employee data
record linkage

description: Dieser Datenreport beschreibt die verknüpften Daten des Panel Arbeitsmarkt und soziale Sicherung (PASS) mit administrativen Daten des Instituts für Arbeitsmarkt- und Berufsforschung (IAB).
Information Support of Regions and Possibilities of Its Further Development
Creators: name: Vanek, Jiri
name: Stoses, Michal
name: Simek, Pavel
name: Hrbek, I.
name: Vanek, Jiri
name: Stoses, Michal
name: Simek, Pavel
name: Hrbek, I.
Publisher: name: Unknown
Year: 2012
Subjects: subject: Research and Development/Tech Change/Emerging Technologies
subject: Research Methods/ Statistical Methods
subject: ICT adoption
subject: broadband
subject: tourism
subject: regional development
subject: web portal.

description: The paper presents the results of information and communication technologies (ICT) research support in the Czech Republic regions, focused mainly on the problems of mapping cultural heritage together with activities in the area of tourism and business activities connected with it (accommodation, food etc). One possible approach is demonstrated on the example of web portal “Get to know Posumavi – a tourist guide to Posumavi”. This approach integrates the advantages of standard information sources with the Internet application. Moreover, this application provides a clear topographical output. The project is being prepared in co-operation with a chosen local partner, in our case the Posumavi local action group. The under-mentioned solution can be further extended if need be, but we can also understand it as a general-purpose solution which means it can be widely used in other areas of the information support of regions. The knowledge and data presented in the paper were obtained as a result of the Research Program titled “Economy of the Czech Agriculture Resources and Their Efficient Use within the Framework of the Multifunctional Agri-food Systems” of the Czech Ministry of Education, Youth and Sports number VZ MSM 6046070906.
Perfil da Transplantação de Córnea do Centro Hospitalar São João entre 2011 e 2018
Creators: name: Godinho, Gonçalo
name: Madeira, Carolina
name: Pinheiro-Costa, João
name: Torrão, Luís
name: Moreira, Raúl
name: Falcão-Reis, Fernando
Publisher: name: Revista Sociedade Portuguesa de Oftalmologia
Year: 2020

description: Objetivo: As técnicas de Queratoplastia Lamelar (KL) permitem a substituição seletiva das camadas de córnea alteradas. A KL associa-se a menos complicações, menor taxa de rejeição e melhores resultados funcionais. O Centro Hospitalar de São João (CHSJ) iniciou a realização de KL em 2009. O objetivo deste trabalho é avaliar a evolução das técnicas cirúrgicas e principais indicações para transplante de Córnea no CHSJ nos últimos 8 anos. Material e Métodos: Análise retrospetiva de todos os pacientes submetidos a transplante de Córnea no CHSJ entre 2011 e 2018. Foram analisadas variáveis demográficas, indicação cirúrgica e tipo de transplante realizado. Resultados: Foram incluídos 1075 olhos nesta análise. Em 2011, 99,3% dos transplantes realizados foram Queratoplastias Penetrantes (KP). A percentagem de KL foi aumentando progressivamente, especialmente depois de 2015. Em 2017 realizaram-se 25% de KL, e, em 2018, 40,9% dos transplantes realizados foram KL. Em 2018, 23,9% foram Descemet’s stripping automated endothelial keratoplasty (DSAEK), 11,4% Descemet membrane endothelial keratoplasty (DMEK) e 5,7% Deep anterior lamellar keratoplasty (DALK)). As principais indicações cirúrgicas foram a patologia endotelial, queratocone e falência de enxerto prévio. Relativamente às ténicas de KL, as principais indicações cirúrgicas foram a patologia endotelial e queratocone, verificando-se um aumento de transplantes por falência de enxerto prévio. Conclusões: O uso de KL no CHSJ tem aumentado progressivamente em detrimento de KP, principalmente desde 2015. Tendo em conta os bons resultados funcionais e baixo número de complicações, a KL deve ser a primeira opção para o tratamento de patologia lamelar seletiva da córnea.
description: Revista Sociedade Portuguesa de Oftalmologia, Vol. 43 N.º 4 (2019)
Utilizing Peer Feedback by Synthesizing a Peer-Assisted Learning Center with an English Course to Develop English Grammar and AcademicWriting Skills
Creators: name: Bacon, Edward Devere
Publisher: name: Faculty of Education, Rangsit University
Year: 2020
Subjects: Peer-assisted learning, peer feedback, English grammar, academic writing skills

description: Rangsit Journal of Educational Studies, 7, 1, 34-45
Invariants of unipotent transformations acting on noetherian relatively free algebras
Creators: name: Drensky, Vesselin
Publisher: name: arXiv
Year: 2004
Subjects: subject: Rings and Algebras (math.RA)
subject: Commutative Algebra (math.AC)
subject: FOS: Mathematics
subject: 16R10 (primary); 16R30 (secondary)

description: The classical theorem of Weitzenboeck states that the algebra of invariants of a single unipotent transformation $g$ in $GL_m(K)$ acting on the polynomial algebra $K[x_1,...,x_m]$ over a field $K$ of characteristic 0 is finitely generated. Recently the author and C.K. Gupta have started the study of the algebra of $g$-invariants of relatively free algebras of rank $m$ in varieties of associative algebras. They have shown that the algebra of invariants is not finitely generated if the variety contains the algebra $UT_2(K)$ of $2\times 2$ upper triangular matrices. The main result of the present paper is that the algebra of invariants is finitely generated if and only if the variety does not contain the algebra $UT_2(K)$. As a by-product of the proof we have established also the finite generation of the algebra of $g$-invariants of the mixed trace algebra generated by $m$ generic $n\times n$ matrices and the traces of their products.
description: 8 pages
Wage Disparity and Inter-Occupation Specifics in Managing Czech Households’ Portfolios: What is the position of agricultural workers?
Creators: name: Vavrouskova, Lenka
name: Cechura, Lukas
name: Vavrouskova, Lenka
name: Cechura, Lukas
Publisher: name: Unknown
Year: 2012
Subjects: subject: Labor and Human Capital
subject: Public Economics
subject: Wage disparity
subject: Occupation specifics
subject: Portfolio choice
subject: Heckman selection model

description: Wage disparity that exists between genders, sectors, and geographical regions, can influence household portfolio management. This study examines the impact of wage disparity and inter-occupation differences on Czech household portfolios. The model of portfolio choice was estimated using the Heckman selection model complemented by wage disparity analysis. Results show no significant differences in financial portfolios between blue-collar workers, including farm households and employees in agricultural sector, and white- collar workers. There was high heterogeneity within the group of blue-collar workers, and wage disparity among employment sectors. Employees in the agricultural sector were categorised as having a below average salary and characterised by a lower probability of utilising long-term saving products, loans and making a smaller contribution to short term saving products. Agricultural workers and farm household were a highly heterogeneous group. Finally a significant regional wage disparity in the Czech agriculture sector was observed. The research was supported by the Ministry of Education, Youth and Sports of the Czech Republic (Grant No. MSM 6046070906).
Interaction between low-level jets and wind farms in a stable atmospheric boundary layer
Creators: name: Gadde, Srinidhi Nagarada
name: Stevens, Richard J. A. M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Low-level jets (LLJs) are the wind maxima in the lower regions of the atmosphere with a high wind energy potential. Here we use large-eddy simulations to study the effect of LLJ height on the flow dynamics in a wind farm with $10\times4$ turbines. We change the LLJ height and atmospheric thermal stratification by varying the surface cooling rate. We find that the first row power production is higher in the presence of a LLJ compared to a neutral reference case without LLJ. Besides, we show that the first row power production increases with decreasing LLJ height. Due to the higher turbulence intensity, the wind turbine wakes recover faster in a neutral boundary layer than in a stably stratified one. However, for strong thermal stratification with a low-height LLJ, the wake recovery can be faster than for the neutral reference case as energy can be entrained from the LLJ. Flow visualizations reveal that under stable stratification the growth of wind farm's internal boundary layer is restricted and the wind flows around the wind farm. Wind farms extract energy from LLJs through wake meandering and turbulent entrainment depending on the LLJ height. Both effects are advantageous for wake recovery, which is beneficial for the performance of downwind turbines. This finding is confirmed by an energy budget analysis, which reveals a significant increase in the kinetic energy flux in the presence of a LLJ. The jet strength reduces as it passes through consecutive turbine rows. For strong stratification, the combined effect of buoyancy destruction and turbulence dissipation is larger than the turbulent entrainment. Therefore, the power production of turbines in the back of the wind farm is relatively low for strong atmospheric stratifications.
Ophthalmic Manifestations in Down’s syndrome
Creators: name: Sousa, Joana Catarina Oliveira
Publisher: name: Revista Sociedade Portuguesa de Oftalmologia
Year: 2020

description: Objetivos: Rever as manifestações oftalmológicas clinicamente significativas nos indivíduos com Síndrome de Down. Material e Métodos: Revisão clássica da literatura em diferentes bases de dados científicas, utilizando as palavras MeSH "Síndrome Down", "Síndrome de Down", "manifestações oculares", "manifestações oftalmológicas", "trissomia 21". Os artigos foram selecionados nas línguas Inglesa e Portuguesa, publicados desde o ano 2000. Resultados: As patologias oftalmológicas são extraordinariamente prevalentes nos indivíduos com Síndrome de Down. A caraterística ocular mais consistente é a presença de uma dobra epicântica proeminente. Em crianças, os achados oculares predominantes são os erros de refração, sendo a hipermetropia e o astigmatismo os mais comuns; e o estrabismo, principalmente na forma de esotropias. Para os adultos, as cataratas são a principal causa de patologia oftalmológica. A blefarite e a conjuntivite também são condições muito comuns nestes pacientes. Queratocone e Manchas de Brushfield foram descritas como sendo frequentes nesta população; no entanto, não parecem ser tão comuns quanto relatados em estudos mais antigos. Conclusões: Indivíduos com Síndrome de Down têm maior risco de deficiência visual, portanto a avaliação oftalmológica deve ser incluída na sua avaliação médica de rotina. Um atraso no diagnóstico e tratamento destas patologias pode levar à deficiência visual e afetar adversamente a sua qualidade de vida. Assim sendo, a deteção precoce deve ser enfatizada junto dos Médicos de Família e dos Pediatras, para melhorar os resultados do desenvolvimento e funcionais das crianças e adultos com Síndrome de Down. Palavras-chave: Síndrome de Down, patologia oftalmológica, qualidade de vida, deteção precoce
description: Revista Sociedade Portuguesa de Oftalmologia, Vol. 43 N.º 4 (2019)
The singular inverse square potential, limit cycles and self-adjoint extensions
Creators: name: Bawin, M.
name: Coon, S. A.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Quantum Physics (quant-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We study the radial Schroedinger equation for a particle in the field of a singular inverse square attractive potential. This potential is relevant to the fabrication of nanoscale atom optical devices, is said to be the potential describing the dipole-bound anions of polar molecules, and is the effective potential underlying the universal behavior of three-body systems in nuclear physics and atomic physics, including aspects of Bose-Einstein condensates, first described by Efimov. New results in three-body physical systems motivate the present investigation. Using the regularization method of Beane et al., we show that the corresponding ``renormalization group flow'' equation can be solved analytically. We find that it exhibits a limit cycle behavior and has infinitely many branches. We show that a physical meaning for self-adjoint extensions of the Hamiltonian arises naturally in this framework.
description: Final corrected version to appear in Physical Review A
Perception of Poverty by Ethiopian Rural Households: Using a Self Reported approach
Creators: name: Ambaye, Guesh Gebremeske
name: Ambaye, Guesh Gebremeske
Publisher: name: Unknown
Year: 2012
Subjects: subject: Community/Rural/Urban Development
subject: Food Security and Poverty
subject: Food poverty
subject: perception
subject: rural households
subject: Ethiopia
subject: growth.

description: Recent quantitative studies on Ethiopia’s rural households’ poverty of the last decade indicated that poverty head count has reduced. Nevertheless, most qualitative studies witnessed the contrary to quantitative studies. This study assesses how the Ethiopian rural households perceive poverty using self reported data from the Ethiopian Rural Household Survey (ERHS). Moreover, it has examined whether poverty is actually reducing as claimed by official government reports. Our findings come up with mixed results. Majority of the respondents reported that health care, family housing, and credits have been improving compared to the last decade. Nevertheless, perceptions related to food consumption and comparisons of wealth rankings relative to their fathers’ tend to show that the situation is worse though the sample size may not be sufficient to generalize about the whole country.
Additional file 8 of An improved bind-n-seq strategy to determine protein-DNA interactions validated using the bacterial transcriptional regulator YipR
Creators: name: An, Shi-Qi
name: Valvano, Miguel
name: Yu, Yan-Hua
name: Webb, Jeremy
name: Campos, Guillermo Lopez
Publisher: name: figshare
Year: 2020
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Developmental Biology
subject: Inorganic Chemistry
subject: FOS: Chemical sciences

description: Additional file 8: Table S7. Composition for Bin-n-seq wash buffer.
Trends in corneal transplant indications and techniques in Coimbra, Portugal: 2011 -2016
Creators: name: Bernardes, Luís Araújo Matos Caldeira
name: Quadrado-Gil, João
name: Garcia, Huguete
name: Rosa, Andreia
name: Costa, Esmeralda
name: Tavares, Cristina
name: Quadrado, Maria João
name: Murta, Joaquim Neto
Publisher: name: Revista Sociedade Portuguesa de Oftalmologia
Year: 2020

description: Abstract Objective: the aim of this study is to determine the recent trends in corneal transplant indications and corneal tissue use in Coimbra. Methods: data concerning all corneal transplantation procedures performed at Centro Hospitalar e Universitário de Coimbra (CHUC) between 2011 and 2016 were collected and stored at the CHUC Eye Bank. We retrospectively analysed recipient age, gender, primary diagnosis and transplantation technique. Results: 710 corneal transplants were reviewed for analysis. Regraft accounted for 207 (29.2%) of all procedures, followed by bullous keratopathy, with 125 cases (17.6%) and keratoconus, with 118 cases (16.6%). No statistically significant shift in indications for grafting was identified over the 6-year period (p = 0.70). Penetrating keratoplasty (PK) accounted for 506 procedures (71.3%), Descemet’s stripping automated endothelial keratoplasty (DSAEK) for 129 (18.2%), and deep anterior lamellar keratoplasty (DALK) for 64 (9.0%). Over the 6 years, we observed a statistically significant decline in the numbers of PK, accompanied by an increase in DSAEK and DALK. Conclusions: Eye bank registries provide an effective means to evaluate corneal transplantation evolution. Transplant indications have remained stable across the time frame considered. Compared with other series, we report more repeat grafts, less keratoconus and similar percentages of bullous keratopathy and corneal dystrophies. In terms of surgical technique, this study provides further evidence of the increasing popularity of lamellar keratoplasties, in opposition to PK. In conclusion, the indications and techniques for corneal transplantation continue to evolve rapidly, and merit continued investigation to optimize the activities of eye banks and transplant centres.
description: Revista Sociedade Portuguesa de Oftalmologia, Vol. 43 N.º 4 (2019)
Building Blocks for a Data Infrastructure and Services to Empower Agricultural Research Communities
Creators: name: Geser, G.
name: Jaques, Y.
name: Manouselis, Nikos
name: Protonotarios, Vassilis
name: Keizer, J.
name: Sicilia, M.
name: Geser, G.
name: Jaques, Y.
name: Manouselis, Nikos
name: Protonotarios, Vassilis
name: Keizer, J.
name: Sicilia, M.
Publisher: name: Unknown
Year: 2012
Subjects: subject: Research and Development/Tech Change/Emerging Technologies
subject: Research Methods/ Statistical Methods
subject: Agricultural research
subject: agricultural repositories
subject: e-infrastructure
subject: data infrastructure
subject: open access
subject: agricultural statistics.

description: The agINFRA project aims to provide the agricultural research communities with e-infrastructure and services for open data access, sharing and re-use. This paper introduces the project’s objectives and data principles, presents the data resources that are covered, and illustrates agINFRA services with examples from the area of agricultural statistics. Finally, it summarises how agricultural research institutions and other stakeholders can participate in, and benefit from, the project.
Self-consistent approach for excitons in quantum wells
Creators: name: Ponomarev, I. V.
name: Deych, L. I.
name: Lisyansky, A. A.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We introduce a computationally efficient approach to calculating the characteristics of excitons in quantum wells. In this approach we derive a system of self-consistent equations describing the motion of an electron-hole pair. The motion in the growth direction of the quantum well in this approach is separated from the in-plane motion, but each of them occurs in modified potentials found self-consistently. The approach is applied to shallow quantum wells, for which we obtained an analytical expression for the exciton binding energy and the ground state eigenfunction. Our results are in excellent agreement with standard variational calculations, but require greatly reduced computational effort.
description: RevTeX4, 13 pages, 4 figures, submitted to Phys. Rev B Changed content, added references, correct typos
Monitoring of infection pressure of American Foulbrood disease by means of Google Maps
Creators: name: Halbich, Cestmir
name: Vostrovsky, Vaclav
name: Halbich, Cestmir
name: Vostrovsky, Vaclav
Publisher: name: Unknown
Year: 2012
Subjects: subject: Research Methods/ Statistical Methods
subject: Resource /Energy Economics and Policy
subject: Teaching/Communication/Extension/Profession
subject: Spatial decision problem
subject: decision support systems
subject: GIS
subject: Google Maps
subject: American Foulbrood disease
subject: infection pressure.

description: This article describes the options on Google Maps as a tool for decision support in solving spatial problems associated with the American Foulbrood disease. This disease is a serious problem for beekeepers world- wide. The solution to these problems requires the application of all available knowledge in the relevant decision-making processes. The Google Maps offers the geographical approach that represents a new way of thinking and solutions to existing spatial problems. This approach allows to apply existing knowledge to model and analyze these problems and thus help to solve them. The Project Information and knowledge support of strategic control - MSM 6046070904 supports this work.
The Development of Task-Based Learning (TBL) and Communication Strategies (CSs) Instructional Model to Enhance English Speaking Skill for Public Health Students
Creators: name: Thaweesak Chooma
Publisher: name: Faculty of Education, Rangsit University
Year: 2020
Subjects: Task-based learning, communication strategies, English speaking skill for public health students

description: Rangsit Journal of Educational Studies, 7, 1, 60-75
Locating conical degeneracies in the spectra of parametric self-adjoint matrices
Creators: name: Berkolaiko, Gregory
name: Parulekar, Advait
Publisher: name: arXiv
Year: 2020
Subjects: subject: Spectral Theory (math.SP)
subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: 15A18, 65F15, 81U30

description: A simple iterative scheme is proposed for locating the parameter values for which a 2-parameter family of real symmetric matrices has a double eigenvalue. The convergence is proved to be quadratic. An extension of the scheme to complex Hermitian matrices (with 3 parameters) and to location of triple eigenvalues (5 parameters for real symmetric matrices) is also described. Algorithm convergence is illustrated in several examples: a real symmetric family, a complex Hermitian family, a family of matrices with an "avoided crossing" (no covergence) and a 5-parameter family of real symmetric matrices with a triple eigenvalue.
description: 19 pages, 8 figures; improved following referees' suggestions
Critical current density and flux pinning in La2-xPrxCa2xBa2Cu4+2xOz (x = 0.1 - 0.5) superconductors
Creators: name: Rayaprol, S.
name: Thaker, C. M.
name: Shah, N. A.
name: Kuberkar, D. G.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Polycrystalline La2-xPrxCa2xBa2Cu4+2xOz (LPCaBCO) compounds with x = 0.1 - 0.5 were synthesized by solid-state reaction method and studied by room temperature X-ray diffraction, dc resistivity, dc magnetization and iodometry. The superconducting transition temperatures in these tetragonal triple perovskite compounds increases from 32 to 62 K (Tconset values) with increasing dopant concentration. The mixing of rare earth La3+ and Pr3+/4+ ions at rare earth site (La3+) along with substitution of divalent Ca2+ results in the shrinkage of unit cell volume. The contraction of unit cell volume due to larger ion being substituted by smaller ions, gives rise to creation of pinning centers in the unit cell leading to increase in critical current density and flux pinning
description: To be published in Solid State Communications (2004)
THESIS ON THE TOPIC: INTERNATIONAL LEGAL MECHANISMS FOR THE PROTECTION OF GREEN INVESTMENTS.
Creators: name: Khusniddinova, Maftuna
Publisher: name: Zenodo
Year: 2025

description: International legal mechanisms for the protection of green investments In recent years, the urgency of addressing climate change and environmental degradation has prompted a surge in green investments—financial commitments aimed at promoting sustainable development and ecological conservation. As countries transition towards greener economies, the need for robust international legal mechanisms to protect these investments has become increasingly critical. Such mechanisms not only provide assurance to investors but also foster global cooperation in achieving environmental goals.
Electronic properties of metal induced gap states at insulator/metal interfaces -- dependence on the alkali halide and the possibility of excitonic mechanism of superconductivity
Creators: name: Arita, Ryotaro
name: Tanida, Yoshiaki
name: Kuroki, Kazuhiko
name: Aoki, Hideo
Publisher: name: arXiv
Year: 2003
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Motivated from the experimental observation of metal induced gap states (MIGS) at insulator/metal interfaces by Kiguchi {\it et al.} [Phys. Rev. Lett. {\bf 90}, 196803 (2003)], we have theoretically investigated the electronic properties of MIGS at interfaces between various alkali halides and a metal represented by a jellium with the first-principles density functional method. We have found that, on top of the usual evanescent state, MIGS generally have a long tail on halogen sites with a $p_z$-like character, whose penetration depth ($λ$) is as large as half the lattice constant of bulk alkali halides. This implies that $λ$, while little dependent on the carrier density in the jellium, is dominated by the lattice constant (hence by energy gap) of the alkali halide, where $λ_{\rm LiF} < λ_{\rm LiCl} < λ_{\rm LiI}$. We also propose a possibility of the MIGS working favorably for the exciton-mediated superconductivity.
description: 7 pages, 9 figures
The Impact of Bio-Ethanol Conversion and Global Climate Change on Corn Economic Performanve of Indonesia
Creators: name: Ferrianta, Yudi
name: Hanani, Nuhfil
name: Setiawan, Budi
name: Muhaimin, Wahib
name: Ferrianta, Yudi
name: Hanani, Nuhfil
name: Setiawan, Budi
name: Muhaimin, Wahib
Publisher: name: Unknown
Year: 2012
Subjects: subject: Agribusiness
subject: Crop Production/Industries
subject: Farm Management
subject: Production Economics
subject: The energy crisis
subject: Climate change
subject: Corn

description: Many studies conclude that the rise in global food prices due to higher demand from the development of biofuels, climate anomalies, and increased of oil prices. Not only the food commodity index rose more than 60 percent, nonfood commodity price index also rose over 60 percent and crude oil price index has increased even further above 60 percent. The purpose of this study is to analyze the impact of bio-ethanol conversion and global climate change on corn economic performance of Indonesia. The results showed that the food crisis caused by climate anomalies lead the world corn prices rose 50 percent, impact on Indonesia corn imports fell by 11.86 percent. And the other hand, the energy crisis that caused the corn used as feedstock for ethanol that caused U.S. corn exports only 20 percent of their products have an impact on Indonesia on maize imports fell 32.4 percent.
New insight on the far-UV SED and HeII emission from low metallicity galaxies
Creators: name: Schaerer, D.
name: Izotov, Y.
name: Fragos, T.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Understanding the ionizing spectrum of low-metallicity galaxies is of great importance for modeling and interpreting emission line observations of early/distant galaxies. Although a wide suite of stellar evolution, atmosphere, population synthesis, and photoionization models, taking many physical processes into account now exist, all models face a common problem: the inability to explain the presence of nebular HeII emission, which is observed in many low metallicity galaxies, both in UV and optical spectra. Several possible explanations have been proposed in the literature, including Wolf-Rayet (WR) stars, binaries, very massive stars, X-ray sources, or shocks. However, none has so far been able to explain the major observations. We briefly discuss the HeII problem, available empirical data, and observed trends combining X-ray, optical and other studies. We present a simple and consistent physical model showing that X-ray binaries could explain the long-standing nebular HeII problem. Our model, described in Schaerer et al. (2019), successfully explains the observed trends and strength of nebular HeII emission in large samples of low metallicity galaxies and in individual galaxies, which have been studied in detail and with multi-wavelength observations. Our results have in particular important implications for the interpretation of galaxy spectra in the early Universe, which will be obtained with upcoming and future facilities.
description: 5 pages, 2 figures. Proceedings of IAU Symposium No. 352, 2019 "Uncovering early galaxy evolution in the ALMA and JWST era". Eds. E. da Cunha, J. Hodge, J. Afonso, L. Pentericci
Comparação entre diferentes formulações de Neurotoxina Botulínica A no tratamento da endotropia
Creators: name: Cabral, Diogo Reis
Publisher: name: Revista Sociedade Portuguesa de Oftalmologia
Year: 2020

description: OBJECTIVOS: Comparar a resposta motora e os efeitos adversos das formulações onatoxina e incotoxina em doentes com endotropia. MATERIAL E MÉTODOS: Estudo unicêntrico, longitudinal com análise de processos de doentes com o diagnóstico de endotropia e tratamento com Neurotoxina Botulínica A como primeira linha entre julho de 2006 e julho de 2015. Dados: tipo de toxina; ângulo do desvio; tipo de desvio; idade de injeção; equivalente esférico; 1ª vez vs subsequente e ptose temporária. Foi realizada análise estatística com investigação da associação entre as variáveis de interesse (análise univariada e multivariada). RESULTADOS: Estudados 180 doentes, totalizando 231 injeções (161 de onatoxina e 70 de incotoxina). O desvio médio ao perto e ao longe não diferiu nos grupos injetados com onatoxina ou incotoxina aos seis ou doze meses (p > 0,05) mas difere aos trinta dias (IC95% = -14.4 ± 3,14, p < 0,01). Aos trinta dias após a injeção, a formulação ONA está associada a hipercorreção do desvio para perto (β= - 5.43, IC95% = [-10.86, -0,00], p=0.05) e para longe (β=-4.40, IC95% = [-9.52, 0.73], p=0,09). No grupo onatoxina verificou-se maior frequência de ptose temporária associada a um risco relativo de 2,34 (IC95% = [1.16, 4,71], p = 0,02). CONCLUSÕES: O tipo de neurotoxina botulínica A injetado não influencia a resposta motora aos seis ou doze meses após a injeção. A formulação onatoxina está associada a hipercorreção aos trinta dias após a injeção e apresenta maior frequência de efeitos adversos locais temporários.
description: Revista Sociedade Portuguesa de Oftalmologia, Vol. 44 N.º 1 (2020)
Determinants of Repayment of Loan Beneficiaries of Micro Finance Institutions in Southeast States of Nigeria
Creators: name: Onyeagocha, Stephen Umamuefula Osuji
name: Chidebelu, Sunday Angus Nnachebe Dixie
name: Okorji, Eugene Chukwuemeka
name: Onyeagocha, Stephen Umamuefula Osuji
name: Chidebelu, Sunday Angus Nnachebe Dixie
name: Okorji, Eugene Chukwuemeka
Publisher: name: Unknown
Year: 2012
Subjects: subject: Political Economy
subject: Risk and Uncertainty
subject: Determinants of Repayment of MFIs Loan Beneficiaries
subject: Nigeria

description: The study investigated the loan repayment, its determinants and socio-economic characteristics of microfinance loan beneficiaries in the Southeast states of Nigeria. It was carried out in three states of the five southeast states. Using a multistage sampling technique, a total of 144 loan beneficiaries in the three segments of MFIs, namely; formal (commercial and development banks); semi-formal (NGOs-MFIs) and informal (ROSCAS, “Isusu” and co-operative societies) were randomly selected and interviewed in the three states. An ordinary least square (OLS) multiple regression analysis was carried out to isolate and examine the determinants of loan repayment from the respondents’ perspective. Results showed that beneficiaries had low level of education, operated enterprises at a relatively small scale, had large family size and were of middle age. Further, it was found out that the majority of the respondents were involved in farming enterprise (crop and poultry) even though trading was the most prominent single non-farming enterprise (trading, processing and artisanship). The result affirmed that the informal sector respondents recorded the best repayment rate, followed by the respondents of semi-formal and the banks brought the rear. Outstanding among the determinants of loan repayments from the respondents’ perspective were; loan size, level of education, experience, profitability and portfolio diversity. These, therefore deserve special attention in loan administration of MFIs.
Subconjunctival hemorrhage as an initial manifestation of an orbital vascular malformation
Creators: name: Vieira, Maria João
name: Lopes, Nádia
name: Arruda, Henrique
name: Martins, Joana
name: Sousa, João Paulo Castro
Publisher: name: Revista Sociedade Portuguesa de Oftalmologia
Year: 2019

description: The present case report will describe an acute unexpected presentation of a venous lymphatic malformation of the orbit in a healthy 35-year-old female, without coagulation disorders or orbital trauma history and with a history of airplane travel 7 days before. The patient had an acute subconjunctival hemorrhage associated with periorbital ecchymosis, which begun 4 before. The orbital and cranioencephalic magnetic resonance (OCMR) imaging revealed an intraconal orbital lesion inferomedial to the optic nerve with venous congestion suggestive of a venous lymphatic malformation. The proposed treatment approach was non-interventive, with clinical observation and sequential OCMR. At last observation, the patient had no relevant ophthalmologic symptoms and no significant alterations.
description: Revista Sociedade Portuguesa de Oftalmologia, Vol. 43 N.º 3 (2019)
The Many Dimensions of Dimension
Creators: name: Deser, S.
Publisher: name: arXiv
Year: 2004
Subjects: subject: History and Philosophy of Physics (physics.hist-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Some aspects of the history and impact of the dimension revolution are briefly surveyed, starting with Nordstrom's D=5 scalar gravity-electromagnetism unification.
description: 7 pages. Invited lecture, Nordstrom Memorial Symposium, Helsinki, August 2003, to appear in Proceedings. Text improved, reference added
CORNEAL SUBBASAL NERVE PLEXUS EVALUATION BY IN VIVO CONFOCAL MICROSCOPY IN MULTIPLE SCLEROSIS
Creators: name: Hipólito Fernandes, Diogo
name: Luís, Maria Elisa
name: Cardigos, Joana
name: Cardigos, Joana
name: Vieira, Miguel
name: Alves, Marta
name: Papoila, Ana Luísa
name: Papoila, Ana Luísa
name: Cunha, João Paulo
name: Ferreira, Joana Tavares
Publisher: name: Revista Sociedade Portuguesa de Oftalmologia
Year: 2019

description: PURPOSE Multiple Sclerosis (MS) is the most frequent cause of neurologic disability in young adults, characterized by demyelination and axonal degeneration. Monitoring this last component remains an important challenge. Our study aims to access corneal subbasal nerve plexus morphology by in vivo confocal microscopy (CCM) and explore the possibility of using this noninvasive technology to obtain a biomarker of axonal degeneration. METHODS In this cross-sectional study 30 patients with MS and 22 healthy controls were included. All participants underwent full ophthalmology standard evaluation, CCM and optical coherence tomography (OCT). The following corneal subbasal nerve plexus morphology parameters were analysed: corneal nerve fibre density (CNFD), corneal nerve branch density (CNBD), corneal nerve fibre length (CNFL) and corneal nerve fibre tortuosity (CNFT). Neurological disability of MS patients was accessed using Expanded Disability Status Scale (EDSS) and MS Severity Score (MSSS). RESULTS Compared to controls, MS patients have lower CNFD, CNBD and CNFL (p<0.001) but no significant difference was found related to CNFT (p=0.108). No significant differences were found related to corneal subbasal plexus parameters between MS patients with or without optic neuritis (MSON vs MSNON). CNFD and temporal-inferior peripapillary retinal nerve fibre layer (ppRNFL) showed inverse association both with EDSS (rS=-0.62, p<0.001 for CNFD; rS=-0.53, p=0.003 for temporal-inferior ppRNFL) and MSSS (rS=-0.44, p=0.018 for CNFD; rS=-0.49, p=0.009 for temporal-inferior ppRNFL) scores. CONCLUSIONS CNFD, CNBD and CNFL are decreased in MS patients, suggesting axonal degeneration. Further longitudinal studies are needed to confirm whether CNFD could be a promising imaging parameter in MS severity evaluation. Keywords: multiple sclerosis, axonal degeneration, optical coherence tomography, corneal confocal microscopy, expanded disability status scale.
description: Revista Sociedade Portuguesa de Oftalmologia, Vol. 43 N.º 4 (2019)