cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Self-consistent calculations of loss compensated fishnet metamaterials
Creators: name: Fang, Anan
name: Koschny, Thomas
name: Soukoulis, Costas M.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Optics (physics.optics)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We present a computational approach, allowing for a self-consistent treatment of three-dimensional (3D) fishnet metamaterial coupled to a gain material incorporated into the nanostructure. We show numerically that one can compensate the losses by incorporating gain material inside the fishnet structure. The pump rate needed to compensate the loss is much smaller than the bulk gain and the figure of merit (FOM = |Re(n)/Im(n)|) increases dramatically with the pump rate. Transmission, reflection, and absorption data, as well as the retrieved effective parameters, are presented for the fishnet structure with and without gain material. Kramers-Kronig relations of the effective parameters are in excellent agreement with the retrieved results with gain.
description: 5 pages, 9 figures. Accepted to Physical Review B as a rapid communication
Review of economic modeling evidence from NICE appraisals of rare disease treatments for spinal muscular atrophy
Creators: name: Wiedmann, Lea
name: Cairns, John
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Medicine
subject: Molecular Biology
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Sociology
subject: FOS: Sociology
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Marine Biology
subject: Cancer
subject: Science Policy

description: The National Institute for Health and Care Excellence (NICE) in England has appraised three treatments for spinal muscular atrophy (SMA), namely, nusinersen, onasemnogene abeparvovec, and risdiplam. As rare disease treatments (RDTs) commonly face challenges in health technology assessment (HTA) processes due to their clinical and economic uncertainties, an in-depth review of these appraisals is useful to enable a deeper understanding of economic modeling considerations for SMA. This review is a detailed analysis of NICE appraisals for SMA and aims to compare the economic modeling evidence from the three RDTs. This is done by examining differences and similarities and by discussing critical outstanding issues across the economic evaluations of the appraisals. This article aims to contribute to the development of evidence that can be used as guidance to inform resource allocation decisions for RDTs for SMA, but also to be a resource about approaches for the generation, analysis and interpretation of economic modeling evidence for RDTs more broadly.
TECHNICAL EFFICIENCY OF SMALLHOLDER WHEAT  PRODUCERS IN SIMADA DISTRIC OF AMHARA REGION,  ETHIOPIA
Creators: name: ADERAJEW GEBRIE
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2018

description: Wheat  (Triticum  aestivum)  is  the  main  staple  food  in  Ethiopia,  high  productivity  and
efficiency in its production is crucial to food security in the country. Therefore, this study
aimed  to  analyzing  the  technical  efficiency  of  Smallholder  wheat  producer  in  Simada
district of south Gondar zone in Ethiopia. The objective of study was to measure the level
of  technical  efficiency  of  wheat  producers  and  to  identify  factors  that  contribute  for
efficiency differences among smallholder farmers in the study area. The study was based
on  cross-sectional  data  collected  from  154  wheat  producer  farmers  by  multi-  stag
sampling  technique  during  2017/18  production  season.  For  data  collection  personal
interview  through  a  structural  interview  scheduled  was  employed.  Descriptive  and
inferential  statistics  with  STATA  version  14  were  used  for  data  analysis.  Technical
efficiency of sampled  farmer  in wheat production was estimated and analyzed by Cobb-
Douglas  functional  form  in  stochastic  frontier model  (SFM) with  single  stage estimation
method.  The  estimated  SFM  indicated  that  land,  labor  and  seed were  significantly  and
positively influence wheat production at1 percent of significant level. However, urea was
negatively  influence  wheat  production  at  10  percent  of  significant  level.  Production
function  in wheat production existed  in  increasing  return  to  scale  (1.22). The estimated
gamma  (γ)  parameter was  about  0.29.It  indicated  that  the  relative  deviations  of  actual
output  from  the  frontier  output  due  to  inefficiency.  The  estimated mean  level  of  TE  of
wheat  producers  was  0.79.  From  specific  socioeconomic  and  institutional  factors
hypothesized  that  influence  technical  efficiency  of  farmers  in  wheat  production,  credit
access and  frequency of extension contact were significantly and positively influence the
level  of  technical  efficiency  in  wheat  production  at  10  percent  of  significance  level.
Education  level  was  significantly  and  negatively  influences  the  level  of  technical
efficiency  in  wheat  production  at10  percent  of  significance  level.  Raw  sowing  and
frequency  of  plowing were  significantly  and  negatively  influence  the  level  of  technical
efficiency  in  wheat  production  at  5and1  percent  of  significance  level,  respectively. Therefore, the study suggested the above mentioned significant variables have important
for policy implications in that development programs may give fruitful attention so as to
mitigate  the existing  level of  inefficiency of  farmers  in  the production of wheat  in  study
area.
Unifying Class-Based Representation Formalisms
Creators: name: Calvanese, D.
name: Lenzerini, M.
name: Nardi, D.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: The notion of class is ubiquitous in computer science and is central in many formalisms for the representation of structured knowledge used both in knowledge representation and in databases. In this paper we study the basic issues underlying such representation formalisms and single out both their common characteristics and their distinguishing features. Such investigation leads us to propose a unifying framework in which we are able to capture the fundamental aspects of several representation languages used in different contexts. The proposed formalism is expressed in the style of description logics, which have been introduced in knowledge representation as a means to provide a semantically well-founded basis for the structural aspects of knowledge representation systems. The description logic considered in this paper is a subset of first order logic with nice computational characteristics. It is quite expressive and features a novel combination of constructs that has not been studied before. The distinguishing constructs are number restrictions, which generalize existence and functional dependencies, inverse roles, which allow one to refer to the inverse of a relationship, and possibly cyclic assertions, which are necessary for capturing real world domains. We are able to show that it is precisely such combination of constructs that makes our logic powerful enough to model the essential set of features for defining class structures that are common to frame systems, object-oriented database languages, and semantic data models. As a consequence of the established correspondences, several significant extensions of each of the above formalisms become available. The high expressiveness of the logic we propose and the need for capturing the reasoning in different contexts forces us to distinguish between unrestricted and finite model reasoning. A notable feature of our proposal is that reasoning in both cases is decidable. We argue that, by virtue of the high expressive power and of the associated reasoning capabilities on both unrestricted and finite models, our logic provides a common core for class-based representation formalisms.
Estimate of the cost per responder for treatment with biological therapies of moderate-to-severe plaque psoriasis in Colombia for first-year and maintenance periods
Creators: name: Lasalvia, Pieralessandro
name: Gil-Rojas, Yaneth
name: Papadimitropoulos, Emmanuel
name: Burge, Russel
name: Rosselli, Diego
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: Biotechnology
subject: Ecology
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer
subject: Plant Biology

description: Psoriasis is a chronic systemic inflammatory disease manifesting as erythematous and desquamative dermatoses. This study estimated the cost per responder (CPR) for the treatment of moderate-to-severe plaque psoriasis with biologic therapies approved by the Colombian regulatory agency. This secondary study used a modeling based CPR estimation to evaluate psoriasis therapies in Colombia. We calculated CPR of achieving Psoriasis Area and Severity Index (PASI) scores of 75, 90, and 100 for biological treatments based on the number needed to treat (NNT), reported in previously published network meta-analyses. We calculated CPR for the first year and for the maintenance period. We ranked alternatives using the estimated CPR from each literature source using the Borda count method. Adalimumab, infliximab and etanercept were the least expensive alternatives. Ixekizumab, guselkumab and secukinumab were the treatments with the lowest NNT for PASI 75, 90, and 100. For both first year and maintenance periods, adalimumab, infliximab, guselkumab and ixekizumab had the lowest CPR. Sensitivity analyzes showed consistent results. The application of CPR analysis of biologics to treat plaque psoriasis demonstrated that adalimumab, infliximab, guselkumab, and ixekizumab had the lowest CPR in the first year of treatment and during the maintenance period.
Evaluation of pressure boundary conditions for permeability calculations using the lattice-Boltzmann method
Creators: name: Narváez, Ariel
name: Harting, Jens
Publisher: name: arXiv
Year: 2010
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: Lattice-Boltzmann (LB) simulations are a common tool to numerically estimate the permeability of porous media. For valuable results, the porous structure has to be well resolved resulting in a large computational effort as well as high memory demands. In order to estimate the permeability of realistic samples, it is of importance to not only implement very efficient codes, but also to choose the most appropriate simulation setup to achieve accurate results. With the focus on accuracy and computational effort, we present a comparison between different methods to apply an effective pressure gradient, efficient boundary conditions, as well as two LB implementations based on pore-matrix and pore-list data structures.
description: 16 pages, 6 figures
Radio interferometric observations of two core-dominated triple radio sources at z>3
Creators: name: Cseh, D.
name: Frey, S.
name: Paragi, Z.
name: Gurvits, L. I.
name: Gabanyi, K. E.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Aims. We selected two radio quasars (J1036+1326 and J1353+5725) based on their 1.4-GHz radio structure, which is dominated by a bright central core and a pair of weaker and nearly symmetric lobes at ~10" angular separation. They are optically identified in the Sloan Digital Sky Survey (SDSS) at spectroscopic redshifts z>3. We investigate the possibility that their core-dominated triple morphology can be a sign of restarted radio activity in these quasars, involving a significant repositioning of the radio jet axis. Methods. We present the results of high-resolution radio imaging observations of J1036+1326 and J1353+5725, performed with the European Very Long Baseline Interferometry (VLBI) Network (EVN) at 1.6 GHz. These data are supplemented by archive observations from the Very Large Array (VLA).We study the large- and small-scale radio structures and the brightness temperatures, then estimate relativistic beaming parameters. Results. We show that the central emission region of these two high-redshift, core-dominated triple sources is compact but resolved at ~10 milli-arcsecond resolution. We find that it is not necessary to invoke large misalignment between the VLBI jet and the large-scale radio structure to explain the observed properties of the sources.
description: 5 pages, 4 figures, accepted for publication in A&A
Cultural Mismatch in Roma Parents’ Perceptions: The Role of Culture, Language, and Traditional Roma Values in Schools
Creators: name: Lambrev, Veselina
Publisher: name: Alberta Journal of Educational Research
Year: 2016

description: This article draws on data from a two-year qualitative study exploring the factors contributing to Roma students’ disparate outcomes in Bulgaria. I utilize ethnographic observations, oral history, and in-depth interviews with twenty Roma parents to gain understanding of Roma children’s “cultural capital” and relation to formal schools. The article builds on theoretical orientations, generated primarily in the U.S., that emphasize strengths and the need for culturally relevant pedagogy, and explores the possibility to extend these to the case of Roma communities in Europe. The findings indicate that the traditional education of Roma children differs considerably from the mainstream values emphasized in Bulgarian schools. These include the practice of community-based, informal education, child independence, and early participation in adult life, which have the potential to make the transition from home to school problematic. I argue that if educational equity is the goal, policies and practices must shift their current focus from promoting a monocultural Bulgarian curriculum and pedagogical approaches to meaningful incorporation of culturally relevant content and creating educational environments conductive to Roma students’ learning. Cet article se fonde sur des données provenant d’une étude qualitative qui a duré deux ans et qui a porté sur les facteurs qui contribuent aux résultats divergents des étudiants roms en Bulgarie. Mes données reposent sur des observations ethnographiques, l’histoire orale et des entrevues détaillées auprès de vingt parents roms et ce, pour mieux comprendre le « capital culturel » des enfants roms et leur relation aux écoles formelles. L’article s’appuie sur des orientations théoriques issues surtout de milieux américains et qui soulignent l’importance des bienfaits d’une pédagogie pertinente sur le plan culturel, fait valoir le besoin d’une telle approche et explore la possibilité d’appliquer ces orientations au cas des communautés roms en Europe. Les résultats indiquent que l’éducation traditionnelle des enfants roms diffère considérablement des valeurs communément soulignées dans les écoles bulgares; parmi les éléments divergents, notons la pratique d’une éducation informelle et communautaire, l’autonomie des enfants et la participation précoce à la vie adulte – facteurs qui ont le potentiel de rendre difficile la transition de la maison à l’école. J’affirme que si l’objectif est l’équité en matière d’éducation, les politiques et les pratiques doivent se détourner de la promotion d’un curriculum et d’approches pédagogiques homogènes bulgares vers une intégration significative de contenu culturel pertinent et la création de milieux pédagogiques propices à l’apprentissage par les étudiants roms.
description: Alberta Journal of Educational Research, Vol. 61 No. 4 (2015): Winter: (Theme Issue)
Optimal designs for discriminating between dose-response models in toxicology studies
Creators: name: Dette, Holger
name: Pepelyshev, Andrey
name: Shpilev, Piter
name: Wong, Weng Kee
Publisher: name: arXiv
Year: 2010
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics

description: We consider design issues for toxicology studies when we have a continuous response and the true mean response is only known to be a member of a class of nested models. This class of non-linear models was proposed by toxicologists who were concerned only with estimation problems. We develop robust and efficient designs for model discrimination and for estimating parameters in the selected model at the same time. In particular, we propose designs that maximize the minimum of $D$- or $D_1$-efficiencies over all models in the given class. We show that our optimal designs are efficient for determining an appropriate model from the postulated class, quite efficient for estimating model parameters in the identified model and also robust with respect to model misspecification. To facilitate the use of optimal design ideas in practice, we have also constructed a website that freely enables practitioners to generate a variety of optimal designs for a range of models and also enables them to evaluate the efficiency of any design.
description: Published in at http://dx.doi.org/10.3150/10-BEJ257 the Bernoulli (http://isi.cbs.nl/bernoulli/) by the International Statistical Institute/Bernoulli Society (http://isi.cbs.nl/BS/bshome.htm)
Measuring order in the isotropic packing of elastic rods
Creators: name: Bayart, E.
name: Deboeuf, S.
name: Corson, F.
name: Boudaoud, A.
name: Adda-Bedia, M.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The packing of elastic bodies has emerged as a paradigm for the study of macroscopic disordered systems. However, progress is hampered by the lack of controlled experiments. Here we consider a model experiment for the isotropic two-dimensional confinement of a rod by a central force. We seek to measure how ordered is a folded configuration and we identify two key quantities. A geometrical characterization is given by the number of superposed layers in the configuration. Using temporal modulations of the confining force, we probe the mechanical properties of the configuration and we define and measure its effective compressibility. These two quantities may be used to build a statistical framework for packed elastic systems.
description: 4 pages, 5 figures
Investigating Centrality Measures in Social Networks with Community Structure
Creators: name: Rajeh, Stephany
name: Savonnet, Marinette
name: Leclercq, Eric
name: Cherifi, Hocine
Publisher: name: arXiv
Year: 2022
Subjects: subject: Social and Information Networks (cs.SI)
subject: FOS: Computer and information sciences

description: Centrality measures are crucial in quantifying the influence of the members of a social network. Although there has been a great deal of work dealing with this issue, the vast majority of classical centrality measures are agnostic of the community structure characterizing many social networks. Recent works have developed community-aware centrality measures that exploit features of the community structure information encountered in most real-world complex networks. In this paper, we investigate the interactions between 5 popular classical centrality measures and 5 community-aware centrality measures using 8 real-world online networks. Correlation as well as similarity measures between both type of centrality measures are computed. Results show that community-aware centrality measures can be divided into two groups. The first group, which includes Bridging centrality, Community Hub-Bridge and Participation Coefficient, provides distinctive node information as compared to classical centrality. This behavior is consistent across the networks. The second group which includes Community-based Mediator and Number of Neighboring Communities is characterized by more mixed results that vary across networks.
description: Accepted in The International Conference on Complex Networks and their Applications (2020)
title: Συμπληρωματικές–εναλλακτικές θεραπείες για την διαχείριση των επιπλοκών της χημειοθεραπείας σε ασθενείς με καρκίνο: Συστηματική Ανασκόπηση
title: Complementary- Alternative Therapies for Managing the Complications of Chemotherapy in Cancer Patients: A Systematic Review
titleType: AlternativeTitle
Creators: name: Αλευρά, Νεφέλη
Publisher: name: Πανεπιστήμιο Δυτικής Αττικής
Year: 2021
Subjects: Cancer
Cancer treatment side effects
Systemic cancer therapy
Complementary therapy
Integrative medicine
Integrative oncology

description: Εισαγωγή: Οι ασθενείς που διαγιγνώσκονται με καρκίνο συχνά αντιμετωπίζουν πληθώρα επιπτώσεων λόγω του θεραπευτικού σχήματος. Οι συχνότερες επιπτώσεις είναι η ναυτία και ο εμετός, η κόπωση, ο πόνος, οι διαταραχές ύπνου καθώς και ψυχολογικές συνέπειες όπως το στρες και ο φόβος. Για την αντιμετώπιση αυτών, οι ασθενείς συχνά χρησιμοποιούν συμπληρωματικές θεραπείες που αφορούν: λήψη φυτικών σκευασμάτων, όπως εκχυλίσματα βοτάνων και συμπληρώματα διατροφής, πρακτικές νου και σώματος, όπως ο διαλογισμός και ο βελονισμός, και άλλες προσεγγίσεις, όπως η παραδοσιακή κινέζικη ιατρική. Σκοπός: Σκοπός της εργασίας είναι η σύνοψη των δημοσιευμένων δεδομένων που αφορούν την εφαρμογή συμπληρωματικών θεραπειών σε ασθενείς με καρκίνο, παράλληλα με τη κλασσική θεραπεία, για τη διαχείριση των επιπτώσεων της χημειοθεραπείας. Μέθοδος: Πρόκειται για συστηματική ανασκόπηση της βιβλιογραφίας που πραγματοποιήθηκε από 20- 11-2020 έως 25-05-2021 στις ηλεκτρονικές βάσεις δεδομένων Medline (Pubmed), Scopus, Embase και Cochrane Library με λέξεις κλειδιά: «cancer», «cancer treatment side effects» «systemic cancer therapy», «complementary therapy», «complementary therapies», «integrative medicine», «integrative oncology», καθώς και συνώνυμα και συνδυασμός (and/or) των όρων. Στη μελέτη συμπεριλήφθηκαν 15 άρθρα τα οποία ήταν γραμμένα στην ελληνική ή αγγλική γλώσσα, ήταν απολύτως σχετικά με το θέμα, ήταν ερευνητικές ή ποιοτικές ή περιγραφικές μελέτες, το δείγμα τους ήταν ασθενείς με καρκίνο και ήταν δημοσιευμένα από το 2016 και μετά σε έγκυρο επιστημονικό περιοδικό. Αποτελέσματα: Οι συμπληρωματικές θεραπείες εμφάνισαν σημαντική ανακουφιστική δράση έναντι των επιπτώσεων της θεραπείας είναι: η πιεσοθεραπεία σε σημεία βελονισμού, η άσκηση qigong, η ρεφλεξολογία, η πνευματική φροντίδα, η σωματική άσκηση και από τα φυσικά σκευάσματα το σησαμέλαιο και τα προβιοτικά. Συμπεράσματα: Οι συμπληρωματικές προσεγγίσεις είναι ικανές να βελτιώσουν τις επιπτώσεις που προκαλούνται από τη κλασσική θεραπεία σε ασθενείς με καρκίνο.
การศึกษาความสัมพันธ์เชิงสาเหตุระหว่างปัจจัยการใช้เฟซบุ๊กและผลสัมฤทธิ์ทางการเรียนของนักศึกษาโดยใช้ตัวแบบสมการเชิงโครงสร้าง
Creators: name: ปรียา ริยาพันธ์
Publisher: name: Walailak University
Year: 2020
Subjects: เฟซบุ๊ก
เฟซบุ๊กเอพีไอ
การวิเคราะห์องค์ประกอบเชิงยืนยัน
การวิเคราะห์ตัวแบบสมการโครงสร้าง
ผลสัมฤทธิ์ทางการเรียน

description: Walailak Journal of Learning Innovations, 6, 2, 33-57
Review of economic modeling evidence from NICE appraisals of rare disease treatments for spinal muscular atrophy
Creators: name: Wiedmann, Lea
name: Cairns, John
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Medicine
subject: Molecular Biology
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Sociology
subject: FOS: Sociology
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Marine Biology
subject: Cancer
subject: Science Policy

description: The National Institute of Health and Care Excellence (NICE) in England has appraised three treatments for spinal muscular atrophy (SMA), namely, nusinersen, onasemnogene abeparvovec, and risdiplam. As rare disease treatments (RDTs) commonly face challenges in health technology assessment (HTA) processes due to their clinical and economic uncertainties, an in-depth review of these appraisals is useful to enable a deeper understanding of economic modelling considerations for SMA. This review is a detailed analysis of NICE appraisals for SMA and aims to compare the economic modelling evidence of the three RDTs. This is done by examining differences and similarities and by discussing critical outstanding issues across the economic evaluations of the appraisals. This article aims to contribute to the development of evidence that can be used as guidance to inform resource allocation decisions for RDTs for SMA, but also to be a resource about approaches for the generation, analysis and interpretation of economic modelling evidence for RDTs more broadly.
LoCuSS: Shedding New Light on the Massive Lensing Cluster Abell 1689 - The View From Herschel
Creators: name: Haines, C. P.
name: Smith, G. P.
name: Pereira, M. J.
name: Egami, E.
name: Moran, S. M.
name: Hardegree-Ullman, E.
name: Rawle, T. D.
name: Rex, M.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present wide-field Herschel/PACS observations of Abell 1689, a massive galaxy cluster at z=0.1832, from our Open Time Key Programme. We detect 39 spectroscopically confirmed 100micron-selected cluster members down to 1.5x10^10 Lsun. These galaxies are forming stars at rates in the range 1-10 Msun/yr, and appear to comprise two distinct populations: two-thirds are unremarkable blue, late-type spirals found throughout the cluster; the remainder are dusty red sequence galaxies whose star formation is heavily obscured with A(Halpha)~2 mag, and are found only in the cluster outskirts. The specific-SFRs of these dusty red galaxies are lower than the blue late-types, suggesting that the former are in the process of being quenched, perhaps via pre-processing, the unobscured star formation being terminated first. We also detect an excess of 100micron-selected galaxies extending ~6 Mpc in length along an axis that runs NE-SW through the cluster centre at >95% confidence. Qualitatively this structure is consistent with previous reports of substructure in X-ray, lensing, and near-infrared maps of this cluster, further supporting the view that this cluster is a dynamically active, merging system.
description: 5 pages, 5 figures. Letter accepted for publication in the Herschel special issue of Astronomy and Astrophysics
TECHNICAL EFFICIENCY OF WHEAT PRODUCTION;THE        CASE OF SMALLHOLDER FARMERS IN SIMADA DISTRICT,  SOUTH GONDAR AMHARA REGION, ETHIOPIA.
Creators: name: ADERAJEW GEBRIE
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2018

description: Wheat  (Triticum aestivum)  is the main staple food in Ethiopia, high productivity and
efficiency in its production is crucial to food security in the country. But, the productivity
of wheat can  be  change  due to  differences in the  efficiency of the production process.
Since,  this  study aimed to analyzing the technical efficiency of wheat production in
Simada district of south Gondar  in Ethiopia. The objective of study was  to measure the
level of technical efficiency of wheat producers and to identify factors that contribute for
efficiency differences among smallholder farmers in the study area.  It  was based on
cross-sectional data collected from 154 wheat producer farmers by multi- stag sampling
technique  during 2017/18 production season.  For data collection  personal interview
through a structural interview scheduled was employed. Both descriptive and  inferential
statistics with STATA 14 were used  for data analysis.  Technical efficiency  of sampled
farmer  in wheat production  was estimated and analyzed  by  Cobb-Douglas functional
form  in stochastic frontier model (SFM)  with  single stage estimation method.  The
estimated SFM indicated that input variables (land, labor, seed and oxen) were found to
be significantly and positively  influence wheat production at1and5percent of significant
level  respectively.  The production of wheat by sampled farmer  was  characteristics  in
increasing return to  scale (1.56). The estimated gamma  (γ)  parameter was  about 0.57.
The estimated mean level of  TE of wheat producers was 0.74.Among the farm specific
socioeconomic and institutional factors hypothesized  to affect TE, education  status and
seasonal migration    at 10 percent of significance level  and  family  size, frequency of
weeding,  livestock holding  and credit access at 5 percent of significance level and also
frequency  of  extension contact at  1percent significance  have   positive influence  on the
level of technical efficiency in wheat production. Therefore, the study suggested the above
mentioned significant variables  have important  for  policy implications in that   development programs may give fruitful attention so as to mitigate the existing level of
inefficiency of farmers in the production of wheat in study area.
Particle physics and cosmology intertwined
Creators: name: Nath, Pran
Publisher: name: arXiv
Year: 2024
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: While the standard model accurately describes data at the electroweak scale without inclusion of gravity, beyond the standard model physics is increasingly intertwined with gravitational phenomena and cosmology. Thus gravity mediated breaking of supersymmetry in supergravity models lead to sparticles masses, which are gravitational in origin, observable at TeV scales and testable at the LHC, and supergravity also provides a candidate for dark matter, a possible framework for inflationary models and for models of dark energy. Further, extended supergravity models, and string and D-brane models contain hidden sectors some of which may be feebly coupled to the visible sector resulting in heat exchange between the visible and hidden sectors. Because of the couplings between the sectors both particle physics and cosmology are effected. The above implies that particle physics and cosmology are intrinsically intertwined in the resolution of essentially all of the cosmological phenomena such as dark matter and dark energy and in the resolution of cosmological puzzles such as Hubble tension and EDGES anomaly. Here we give a brief overview of the intertwining and implications for the discovery of sparticles, and the resolution of the cosmological anomalies and identification of dark matter and dark energy as major challenges for the coming decades.
description: 14 pages, no figures
title: The Concept of the Serbian World
title: A Copy of the Russian World or a Unique Idea for the Multidimensional Cohesion of the Serbian People?
titleType: Subtitle
Creators: name: Ljubomirović, Aleksandar
Publisher: name: Freie Universität Berlin
Year: 2022
Subjects: subject: Serbian World
subject: Russian World
subject: Concept
subject: Soft Power
subject: Diaspora
subject: 300 Social sciences::320 Political science::320 Political science

description: The following article thematizes the newly-established concept of the 'Serbian World' which was initially propelled under the media spotlight in Serbia and the region of former Yugoslavia in 2020. Since becoming popular in the media discourse in both Serbia and the region, the term 'Serbian world' has not been studied or analysed properly nor has it been the topic of academic research as such. Therefore, the author of the thesis reconstructs the cognitive structure of the Serbian world concept in political discourses in contemporary Serbia and the region, using the methodology of cognitive semantics. Moreover, this article analyses the various meanings and dimensions of the 'Serbian World' concept and emphasizes how the concept is used by the various Serbian governments since the dissolution of Yugoslavia in order to develop a unique soft power concept to improve the image of Serbia regionally and internationally. Furthermore, the author analyses the historical roots of the terminology and the concept per se, but also focusses on its relation to the much more famous Russian counterpart - Russkiy mir. Overall, the article gives the first ever overview of the Serbian world concept in which the author concludes that the Serbian world represents a unique multidimensional, but also relatively fluid concept, used by various Serbian and regional social actors, often politicizing and misusing its true meaning.
DETERMINANTS OF ADOPTION OF IMPROVED (BH-140) MAIZE  VARIETY AND ITS MANAGMENT PRACTICES   THE CASE OF SOUTH ARI WOREDA, SOUTH OMO ZONE,   SNNPRS, ETHIOPIA
Creators: name: GISHU NIGATU HAREGU
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2018

description: This study was conducted at South Ari Woreda, South Omo Zone, Southern Nations,
Nationalities and Peoples Regional State of Ethiopia. Due to low level adoption of
improved (BH-140) maize variety and different constraints, the maize production and
productivity is low.  The aim of this study was to identify the determinants of adoption
improved (BH-140) maize variety and its management practice in the study area.  From
the total 2403  households found in four sampled  kebeles, 142 sample households were
selected by using systematic random sampling technique taking into account proportional
to size to the population procedure.  Primary data were collected from  survey
questionnaires,  key informants interview and focus group discussions whereas,
Secondary data were  obtained from the books, journals, published and unpublished
documents. Data were analyzed using SPSS.version.16, descriptive statistics, Chi-square
and t-test and logistic regression (binary logit) model. The descriptive statics result of the
total respondent’s 48.59% were non-adopters of the improved (BH-140) maize variety,
while 51.41 % of respondents were adopters improved (BH-140) maize variety. The status
of management practices were not carried out as appropriate level as recommended for
maize production due weak extension advisory service and lack of close supervision with
farmers. Farmers had preferred  (BH-140) maize variety over the local one  is due to its
high yielding, early maturing, Disease resistance, price advantage, storability and market
demand. The chi-square and t-test result indicated  use of credit, contact with extension
agent, experience, TLU,  income, sex, education, Attitude, Feilday, demonstration and
training were  significance relation with adoption of improved(BH-140) maize variety.
Results of the binary logistic result indicate that from 14 explanatory variables, 8 of them
education, contact with extension agents, sex,  Livestock, Income, demonstration credit
were  significant and positively affect adoption of improve maize technologies; whereas,
distance from market center significant but negatively affect the adoption. Based on this
finding, the study suggests that training should be given on pest management practice by
the concerned bodies for maize grower farmers. Agricultural sector experts should be
give more attention to support and supervision for DA- farmers contact.  Attention should
FODDER TREE AND SHRUB SPECIES IN ARBA MINCH ZURIA  WOREDA OF GAMO GOFA ZONE: ECOLOGICAL AND SOCIO- ECONOMIC IMPORTANCE
Creators: name: AYNALEM GOCHERA SADE
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2018

description: This study was conducted in Arba Minch Zuria woreda, Gamo Gofa Zone, SNNPR on Parkland
and Homegarden agroforestry practices. The major objective of the study was investigating  the
fodder tree and shrub species composition, richness, diversity, structure, distribution and
ecological as well as socio-economic roles.  A Key Informants Interview  and  Focus Group
Discussions  were held. Structured  and semi-structured questionnaires were  administered  to
identify the species and their role. In Parkland, totally ninety 50mx20m plots were  laid and in
Homegarden  all  the  garden size were considered.  The first plot and garden  were  selected
randomly and the subsequent plot and garden were selected systematically. The interval between
transects was 500m while that of plots was 400m. Totally, 269 respondents were interviewed to
identify and get ecological and socio-economic roles of the species. About 47 (19, 32 & 19) and
29 (8, 14 &18)  species from Parkland and Homegarden  in Dega, Woina dega and Kola were
identified,  respectively.  There was no significant difference  (P>0.05)  in  species richness  and
diversity  among agro-ecologies  for  both agroforestry practices.  Totally 49  woody  species
belonging to 43 genera and 31 families were identified.  Fabacea  represented by  7  spp., and
Combertacea and Moracea (3 spp., each) were the most diverse families. The total density of the
species  was  343  ha-1
  and 608.81ha-1
  and basal areas were 2.218m2
ha-1
  and 1.33m2
ha-1
  in
Parkland  and  Homegarden,  respectively. However,  these parameters were  not significantly
different among agro-ecologies. Frequent species in Parkland were Vernonia amygdalina, Ficus
sur, Mangifera indica and in Homegarden Vernonia amygdalina, Persia amercana, Mangifera
indica in Dega, Woina dega and Kola,  respectively.  The  species  such as  Ficus sur, Ficus
sycomorus and Mangifera indica  in Parkland and Vernonia amygdalina, Cordia africana and
Mangifera indica  in Homegarden  account  for the  highest IVI in Dega, Woina dega & Kola,
respectively.  In  Parkland, significantly higher mean DBH  in  Kola and  lower mean  height  in
Dega  were observed  whereas in  Homegarden  both parameters  were significantly different.
According to DBH and Height class distribution, small sized individuals were prevalent in both
practices of Dega and Woina dega. But, relatively large sized individuals were leading in Kola.
The  interviewee ratified that the identified species had  ecological and socio-economic merits.
Despite diversity of the species, only 11% of interviewee approved  as  they use  the  species for
fodder.  So, there  should be strong management and conservation  practices,  continuous
awareness raising efforts, and further study should be conducted for nutritional evaluation.
PARKLAND AGROFORESTRY WOODY SPECIES DIVERSITY, STRUCTURE,  BIOMASS CARBON AND MANAGEMENT PRACTICES IN GINDEBERET  DISTRICT, WEST SHOA ZONE, OROMIA REGIONAL STATE, ETHIOPIA
Creators: name: DABA MISGANA BEKELE
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2018

description: Parkland agroforestry woody species are prominent features in many landscapes worldwide,
and their ecological, social and economic importance is widely acknowledged. It is strongly
advisable to observe and try to understand how farmers manage their parkland before
proposing any improvement or alternative techniques. This study was conducted to assess the
woody species composition, structure, diversity, biomass carbon, and management practices
in parkland agroforestry by local farmers. The study was conducted in Gindeberet District,
West Shoa Zone, Oromia Regional State, Ethiopia. Woody species inventory was carried out
on 103 plots (each, 50mx100m) in the crop field laid along 7 transects. A questionnaire was
administered  to gather information on  farmers’ strategy of managing woody species and it
was  analyzed using SPSS  version 20 at  5% significance  level.  For woody species ≥  5cm
DBH, measurements of DBH  and  tree height were taken.  Woody density, basal area,
diameter and height  class distribution  were computed to characterize structure of woody
communities. Species diversity and biomass carbon were also determined. Biomass  carbon
was  estimated  using allometric equations.  A total of 61  woody species belonging to 35
families were recorded. Of these, 53 woody species were recorded in lowland and 31 woody
species were recorded in midland. The study indicated that the woody species Shannon and
Simpson  diversity indices were higher  at lowland than midland agro-ecology.  The total
woody biomass and the biomass carbon of lowland parkland agroforestry was considerably
higher (38.33Mg/ha) and (19.17MgC/ha)  than at midland parkland agroforestry
(20.28Mg/ha) and (10.14MgC/ha), respectively. Farmers retain and/or plant woody species
in their parklands for the purpose of improving soil fertility, fodder, fuel-wood, timber,
shade, construction and others. The management practices employed in  the  study area
includes branch pruning,  lopping, protection,  coppicing, watering and fertilizers. Among
socio-economic factors sex, educational background, number of livestock, land holding size
and wealthy status, exert a significant positive influence on the management of woody
species. These woody species need a series of management to save and sustain for the future
to overcome the socio-economic and environmental problems.
The effect of crown cementation on the marginal fit using a micro-CT measurement technique
Creators: name: Gebril, Mohamed
Publisher: name: University of British Columbia
Year: 2019

description: Objectives: To study the effect of cementation on the marginal gap of lithium disilicate (LDS) crowns made with digital impression and manufacturing (DD), digital impression and traditional pressed manufacturing (DP) and traditional impression and manufacturing (TP). Methods: Ivorine typodont tooth #15 was prepared for an all-ceramic crown. The prepared tooth was scanned, and 45 dies were produced and used for fabricating 45 LDS crowns using three methods: DD, DP, and TP. Micro-CT was utilized to evaluate the 2D marginal gap before adjustment, after adjustment and after cementation. RelyX-Ultimate resin cement was used to cement the crowns on each of the 45 dies with 20 N application force using a universal material testing machine. The 2D vertical marginal gap (MG) evaluations were made at 20 designated positions along the crown margins. The results were analyzed using a linear mixed effect model with the interaction method x cementation as fixed effect, and crown as a random effect, as well as post hoc analysis (CI=95%). Results: Clinical adjustments of unacceptable crowns (4 from the TP and 2 from the DP) which showed at least 5 measurement points of MG of more than 120 μm resulted in reduction of the marginal gap to an acceptable level. Cementation resulted in an average increase in the marginal gap of 20 μm (95 % CI= 22-18), irrespective of the method of fabrication. All crowns had clinically acceptable crown margins, irrespective of the method of fabrication after cementation. Conclusion: Clinical adjustments to intaglio surface of crowns reduced MG, while cementation increased MG regardless of the method of fabrication. The DD group did not require any clinical adjustment prior to cementation. Only two crowns of the DP group and four crowns of the TP group required adjustment prior to cementation
Race and Populist Radical Right Discourses: Implications for Roma Education Policy in Hungary
Creators: name: Lugosi, Nicole VT
Publisher: name: Alberta Journal of Educational Research
Year: 2016

description: Non-government organizations and policy makers agree that the best route to eradicating the widespread discrimination and poverty among the Roma is to improve the quality of and access to education. A cursory glance at the Hungarian Government website suggests that policy makers are on top of the problem with good laws and initiatives in place. Yet, indicators from non-government groups and academics suggest the situation remains bleak for the Roma, and practices such as the segregation of Roma school children persist. Progressive change in Hungary first requires a serious confrontation of the widespread and deeply ingrained racism against the Roma. This paper makes no attempt at such an ambition; however, the paper aims to begin acknowledging the role race plays in populist radical right discourses about education policies in Hungary using a discourse analysis method informed by Critical Race Theory. The paper advances two arguments. First, there is a mismatch between official policy and actual progress on Roma education. Second, an examination of how populist radical right discourses about the Roma are racialized provides insight into why there is a mismatch. Les organisations non-gouvernementales et les décideurs publiques sont d’accord pour dire que la meilleure façon d’éliminer la discrimination répandue contre les Roms et la pauvreté généralisée dans laquelle ils vivent est d’améliorer la qualité de l’éducation qu’ils reçoivent et leur accès à celle-ci. Un examen rapide du site web du gouvernement hongrois laisse penser que les décideurs publiques maitrisent la situation grâce à des lois et des initiatives judicieuses. Toutefois, les indicateurs provenant de groupes non-gouvernementaux et de chercheurs portent à croire que la situation des Roms demeure sombre et que des pratiques telles la ségrégation des élèves roms persiste. Avant de connaitre une évolution positive en Hongrie, il est nécessaire d’affronter efficacement le racisme généralisé et profondément ancré contre les Roms. Cet article ne prétend pas entretenir une telle ambition; il veut plutôt commencer à reconnaitre le rôle que joue la race dans les discours de groupes populistes d’extrême droite évoquant les politiques hongroises en matière d’éducation. La méthode employée est celle d’une analyse du discours appuyée par la théorie critique axée sur la relation entre la race et la loi. L’article fait deux affirmations : d’abord, il y a une inadéquation entre la politique officielle et les progrès réel quant à l’éducation des Roms et deuxièmement, un examen de la racisation des discours de groupes populistes d’extrême droite portant sur les Roms offrent des explications sur l’existence de cette inadéquation.
description: Alberta Journal of Educational Research, Vol. 61 No. 4 (2015): Winter: (Theme Issue)
How Correlated are Community-aware and Classical Centrality Measures in Complex Networks?
Creators: name: Rajeh, Stephany
name: Savonnet, Marinette
name: Leclercq, Eric
name: Cherifi, Hocine
Publisher: name: arXiv
Year: 2022
Subjects: subject: Social and Information Networks (cs.SI)
subject: FOS: Computer and information sciences

description: Unlike classical centrality measures, recently developed community-aware centrality measures use a network's community structure to identify influential nodes in complex networks. This paper investigates their relationship on a set of fifty real-world networks originating from various domains. Results show that classical and community-aware centrality measures generally exhibit low to medium correlation values. These results are consistent across networks. Transitivity and efficiency are the most influential macroscopic network features driving the correlation variation between classical and community-aware centrality measures. Additionally, the mixing parameter, the modularity, and the Max-ODF are the main mesoscopic topological properties exerting the most substantial effect.
description: Accepted in International Conference on Complex Networks: CompleNet-Live 2021
การตัดเกรดฐานผลลัพธ์ในการศึกษาเชิงผลลัพธ์
Creators: name: พิเชษฐ์ พินิจ
Publisher: name: Walailak University
Year: 2020
Subjects: การศึกษาเชิงผลลัพธ์
เกรด
การตัดเกรดฐานผลลัพธ์

description: Walailak Journal of Learning Innovations, 6, 2, 59-96