cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
First demonstration of OH suppression in a high efficiency near-infrared spectrograph
Creators: name: Ellis, S. C.
name: Bland-Hawthorn, J.
name: Lawrence, J. S.
name: Horton, A. J.
name: Content, R.
name: Roth, M. M.
name: Pai, N.
name: Zhelem, R.
name: Case, S.
name: Hernandez, E.
name: Leon-Saval, S. G.
name: Haynes, R.
name: Min, S. S.
name: Giannone, D.
name: Madhav, K.
name: Rahman, A.
name: Betters, C.
name: Haynes, D.
name: Couch, W.
name: Kewley, L. J.
name: McDermid, R.
name: Spitler, L.
name: Sharp, R. G.
name: Veilleux, S.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Ground-based near-infrared astronomy is severely hampered by the forest of atmospheric emission lines resulting from the rovibrational decay of OH molecules in the upper atmosphere. The extreme brightness of these lines, as well as their spatial and temporal variability, makes accurate sky subtraction difficult. Selectively filtering these lines with OH suppression instruments has been a long standing goal for near-infrared spectroscopy. We have shown previously the efficacy of fibre Bragg gratings combined with photonic lanterns for achieving OH suppression. Here we report on PRAXIS, a unique near-infrared spectrograph that is optimised for OH suppression with fibre Bragg gratings. We show for the first time that OH suppression (of any kind) is possible with high overall throughput (18 per cent end-to-end), and provide examples of the relative benefits of OH suppression.
description: Accepted for publication in MNRAS
Μελέτη γαλακτωμάτων τύπου dressing που παρασκευάζονται με βάση το υδατικό εκχύλισμα φουντουκιού
Creators: name: Καπαγερίδης, Νικόλαος Μακεδώνος
Publisher: name: Aristotle University of Thessaloniki
Year: 2021
Subjects: Φυτικό εκχύλισμα φουντουκιού
Φυτικά γαλακτώματα
Εμβάμματα σαλάτας
Natural Hazelnut Extract
Plant-based Emulsions
Salad Dressings

description: Στη παρούσα διπλωματική εργασία μελετήθηκαν φυσικοί και ρεολογικοί δείκτες σε γαλακτώματα τύπου εμβάμματος σαλάτας που παρασκευάστηκαν με βάση το υδατικό εκχύλισμα φουντουκιού. Η μελέτη αυτή περιλάμβανε 15 δείγματα, τα οποία αξιολογήθηκαν κατά τη διάρκεια 60 ημερών. Για να πραγματοποιηθεί ανάλυση διακύμανσης τριών παραγόντων τα γαλακτώματα ταξινομήθηκαν σε πέντε επίπεδα συνολικής περιεκτικότητας σε έλαιο, τρία επίπεδα περιεκτικότητας σε ξανθάνη και σε έξη επίπεδα χρόνου αποθήκευσης. Τα αποτελέσματα που προέκυψαν έδειξαν για την φυσική σταθερότητα των γαλακτωμάτων ήταν ότι η κατανομή μεγέθους μεταβάλλεται σημαντικά με τη προσθήκη ξανθάνης, εμφανίζοντας περιοχές δυο ή ακόμα και τριών κορυφών στην κατανομή μεγέθους. Επίσης, σημαντική επίδραση στην αποκορύφωση παρουσίασαν τα επίπεδα ξανθάνης και ελαίου, όπου κατά τη προσθήκη του πολυσακχαρίτη ο ρυθμός μεταβολής του βαρυτικού διαχωρισμού μειώθηκε σημαντικά. Στα ρεολογικά χαρακτηριστικά μεγαλύτερο ενδιαφέρον παρουσιάστηκε στη μεταβολή του δείκτη ρεολογικής συμπεριφοράς. Πιο έντονη ψευδοπλαστικότητα (χαμηλό δείκτη ρεολογικής συμπεριφοράς) παρουσίασαν τα δείγματα που τα επίπεδα ξανθάνης και ελαίου ήταν υψηλά. Ακολούθως ο δείκτης συνεκτικότητας αυξήθηκε κυρίως με την προσθήκη ξανθάνης και ελαίου. Τέλος, κατά τη διάρκεια της αποθήκευσης σε δείγματα απουσία ξανθάνης πραγματοποιήθηκε απότομη αύξηση του δείκτη ρεολογικής συμπεριφοράς και μείωση του δείκτη συνεκτικότητας υποδηλώνοντας έτσι την κατάρρευση της δομής
description: The purpose of the present study is to assess the rheological properties of a series of emulsions in the form of salad dressings. The main constituent of the emulsions was an aqueous extract of hazelnut. The evaluation period lasted 60 days, and it involved the analysis of 15 samples of emulsions. We proceeded to a Three-Way ANOVA test and the independent variables were the following: Oil Concentration, Xanthan Gum Concentration and Storage time. The respective levels were 5 for oil concentration, 3 for xanthan gum concentration and 6 for storage time. The results exhibit a significant change in the particle size distribution, in the form of 2-3 different peaks, after the addition of xanthan gum. Moreover, the presence of the polysaccharide reduces the ratio of gravitational segregation. Furthermore, the emulsions with elevated concentrations in xanthan gum and oil underwent increased pseudoplastic behavior. Consequently, the Consistency Index of the emulsions increased with the addition of xanthan gum and oil. Lastly, the absence of xanthan gum led to a sudden increase in the Flow Behavior Index and decline in the Consistency Index. These alterations can only imply the collapse of the structures under study
Structural origin for the dipole x-ray resonant scattering in the low temperature phase of Nd0.5Sr0.5MnO3 manganite
Creators: name: Herrero-Martin, Javier
name: Ruiz, Joaquin Garcia
name: Subias, Gloria
name: Blasco, Javier
name: Concepcion-Sanchez, Maria
Publisher: name: arXiv
Year: 2004
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We have investigated the low temperature phase of a Nd0.5Sr0.5MnO3 single crystal by x-ray resonant scattering at the Mn K-edge of the (3 0 0), (0 3 0) and (0 5/2 0) reflections. Strong resonances were observed for the s-s' channel in the (3 0 0) and (0 3 0) reflections and for the s-p' channel in the (0 5/2 0) reflection. These resonances show a p-periodicity on the azimuthal angle, having the intensity at the minimum position almost zero. The intensity dependence on the photon energy, azimuthal angle and polarisation dependencies has been analysed using a semi-empirical structural model. Contrary to previous claims of charge (Mn3+-Mn4+) and orbital ordering in this compound, our results show that the dipole resonant superlattice reflections can be explained by the presence of two types of Mn sites with different local geometric structure. One of the Mn sites is surrounded by a tetragonal-distorted oxygen octahedron whereas the other site has a symmetric octahedral environment. This model also establishes that no real space charge ordering is needed to explain the experimental data. Intermediate valence states according to a fractional charge-segregation Mn+3.42-Mn+3.58 were deduced.
description: 40 pages, 12 figures Presented at the ESRF 14th users meeting, February, 2004. Physical Review B (to be published)
Signals of new physics in global event properties in pp collisions in the TeV energy domain: rapidity intervals
Creators: name: Giovannini, A.
name: Ugoccioni, R.
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The study of possible new physics signals in global event properties in pp collisions in the TeV energy domain is extended from full phase-space to rapidity intervals experimentally accessible at LHC. The elbow structure in the total multiplicity distribution predicted in full phase-space is clearly present also in restricted rapidity intervals, leading to very strong charged particle correlations. It is also found that energy densities comparable to those reached in heavy ion collisions at RHIC could be attained in pp collisions at LHC.
description: 10 pages, 4 figures
A Physics Based Approach for Neural Networks Enabled Design of All-Dielectric Metasurfaces
Creators: name: Tanriover, Ibrahim
name: Hadibrata, Wisnu
name: Aydin, Koray
Publisher: name: arXiv
Year: 2020
Subjects: subject: Applied Physics (physics.app-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Machine learning methods have found novel application areas in various disciplines as they offer low-computational cost solutions to complex problems. Recently, metasurface design has joined among these applications, and neural networks enabled significant improvements within a short period of time. However, there are still outstanding challenges that needs to be overcome. Here, we propose a data pre-processing approach based on the governing laws of the physical problem to eliminate dimensional mismatch between high dimensional optical response and low dimensional feature space of metasurfaces. We train forward and inverse models to predict optical responses of cylindrical meta-atoms and to retrieve their geometric parameters for a desired optical response, respectively. Our approach provides accurate prediction capability even outside the training spectral range. Finally, using our inverse model, we design and demonstrate a focusing metalens as a proof-of-concept application, thus validating the capability of our proposed approach. We believe our method will pave the way towards practical learning-based models to solve more complicated photonic design problems.
Forest cover dynamics in the Selva Maya of Central and Southern Quintana Roo, Mexico: deforestation or degradation?
Creators: name: Ellis, Edward A.
name: A. Navarro Martínez
name: M. García Ortega
name: I. U. Hernández Gómez
name: D. Chacón Castillo
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Molecular Biology
subject: Neuroscience
subject: Ecology
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy

description: Forest cover dynamics (1993-2018) was assessed in two regions on the Yucatan Peninsula: Zona Maya (ZM), 67% indigenous with shifting cultivation and community forestry; and Bacalar–Rio Hondo (BRH), mainly commercial agriculture and pastureland. Degradation (12,915 ha y−1) exceeded deforestation (5882 ha y−1) and was worse in BRH. In BRH there was a net forest loss (−1.6% y−1) associated with pastureland and commercial agriculture. In ZM, mature forest recovery (1.4% y−1) and dynamic forest cover (continuous loss and gain) were associated with shifting cultivation. Changes were more intense during 2011–2018 and gains of mature forest in ZM and deforested areas in BRH targeted secondary vegetation. Fragments of mature and secondary vegetation decreased, and connectivity improved in ZM, but opposite trends occurred in BRH. Reporting and monitoring deforestation using Global Forest Watch data is inadequate since 62% of forest cover loss represent degrading or recovering forest cover.
Lophopoeum bruchi Monne & Martins 1976
Creators: name: Monné, Miguel A.
Publisher: name: Zenodo
Year: 2005
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Cerambycidae
Lophopoeum
Lophopoeum bruchi

description: 2. Lophopoeum bruchi Monné & Martins, 1976
Type locality — Argentina, Santa Fé. (MNRJ). Distribution — Argentina (Santa Fé, Entre Ríos), Uruguay.
 Lophopoeum bruchi Monné & Martins, 1976: 53; Di Iorio, 1995b: 231; González & Di Iorio, 1997: 171 (hosts); Di Iorio & Zelich, 1997: 279, 287 (hosts); Julio et al., 2000: 41 (holotype); Monné, 2001b: 21 (cat. hosts); Di Iorio in Cordo et al., 2004: 53 (hosts).
 Lophopoeum timbouvae; Bosq, 1934: 338 (hosts, not Lameere, 1884); Bruch, 1940: 118, figs. 13­ 17, pls 2, 3; Bosq, 1943a: 25 (hosts); Duffy, 1960: 262, figs. 161, 162 (partim); Zajciw & Ruffinelli, 1962: 82 (distr.); Ruffinelli, 1967: 48 (hosts., partim); Zajciw & Monné, 1968: 61 (partim).
description: Published as part of Monné, Miguel A., 2005, Catalogue of the Cerambycidae (Coleoptera) of the Neotropical Region. Part II. Subfamily Lamiinae, pp. 1-760 in Zootaxa 1023 (1) on pages 1-760, DOI: 10.11646/zootaxa.946.1.1, http://zenodo.org/record/5049553
Additional file 1 of The heterogeneous effects of COVID-19 lockdowns on crime across the world
Creators: name: Trajtenberg, N.
name: Fossati, S.
name: Diaz, C.
name: Nivette, A. E.
name: Aguilar, R.
name: Ahven, A.
name: Andrade, L.
name: Amram, S.
name: Ariel, B.
name: Arosemena Burbano, M. J.
name: Astolfi, R.
name: Baier, D.
name: Bark, H.-M.
name: Beijers, J. E. H.
name: Bergman, M.
name: Borges, D.
name: Breetzke, G.
name: Cano, I.
name: Concha Eastman, I. A.
name: Curtis-Ham, S.
name: Davenport, R.
name: Droppelman, C.
name: Fleitas, D.
name: Gerell, M.
name: Jang, K.-H.
name: Kääriäinen, J.
name: Lappi-Seppälä, T.
name: Lim, W.-S.
name: Loureiro Revilla, R.
name: Mazerolle, L.
name: Mendoza, C.
name: Meško, G.
name: Pereda, N.
name: Peres, M. F.
name: Poblete-Cazenave, R.
name: Rojido, E.
name: Rose, S.
name: de Ribera, O. Sanchez
name: Svensson, R.
name: van der Lippe, T.
name: Veldkamp, J. A. M.
name: Vilalta Perdomo, C. J.
name: Zahnow, R.
name: Eisner, M. P.
Publisher: name: figshare
Year: 2024
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: Mathematical Sciences not elsewhere classified
subject: Cancer
subject: Science Policy
subject: Mental Health
subject: Plant Biology
subject: FOS: Biological sciences

description: Supplementary Material 1.
From phase separation to long-range order in a system of interacting electrons
Creators: name: Derzhko, Volodymyr
name: Jedrzejewski, Janusz
Publisher: name: arXiv
Year: 2003
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study a system composed of fermions (electrons), hopping on a square lattice, and of immobile particles (ions), that is described by the spinless Falicov-Kimball Hamiltonian augmented by a next-nearest-neighbor attractive interaction between the ions (a nearest-neighbor repulsive interaction between the ions can be included and does not alter the results). A part of the grand-canonical phase diagram of this system is constructed rigorously, when the coupling between the electrons and ions is much stronger than the hopping intensity of electrons. The obtained diagram implies that, at least for a few rational densities of particles, by increasing the hopping intensity the system can be driven from a state of phase separation to a state with a long-range order. This kind of transitions occurs also, when the hopping fermions are replaced by hopping hard-core bosons.
description: 19 pages, 6 figures; formulae (22), (23) and (26) have been corrected
Teenage athletes and food choices
Creators: name: Parr, Diane Carmen
Publisher: name: The University of British Columbia
Year: 2023

description: Background: Nutritious food choices are important for the health, fitness and sport performance of teenage athletes. Understanding young athletes’ nutrition knowledge and the influences which affect their food choices can inform and enhance the nutrition-education programs available to this population. Purpose: To understand what factors influence the food choices of high school athletes and the possible consequences of these factors for student health and sport performance. Additionally, where do athletes obtain their nutrition information and how accurate is this information? Methods: The study sample consists of 83 students from a southern Alberta urban center. The questionnaire used in the study includes a demographic section, 10 agree/disagree opinion questions, 13 questions related to typical food choice patterns and 5 questions regarding food choice influences. Two small focus group discussions with assenting/consenting student athlete volunteers consisted of open-ended questions relating to food choices and influencing factors as a follow-up to the questionnaire responses. Results: High school students enrolled in sport academy programs who receive nutrition education regarding enhancing their sport performance, have a better understanding of sport nutrition requirements. Students listed their coaches and parents as the primary source of sport nutrition information. Students acknowledged that having confidence in food preparation skills can improve their food choices. Conclusion: Recognizing the factors that affect the food choices of teenage athletes can enhance the future delivery of foods and nutrition education programs by helping young athletes analyze their food choices and to understand how their food choices can heighten their performance levels in their sport of choice.
Wave interactions in neutrally stable shear layers: regular and singular modes, and non-modal growth
Creators: name: Heifetz, Eyal
name: Guha, Anirban
name: Carpenter, Jeff
Publisher: name: arXiv
Year: 2020
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: In a recent letter, Carpenter and Guha (2019) compared the neutral modes of a smooth two dimensional shear profile without an inflection point to the modes of its corresponding piecewise-linear profile. The regular mode in the smooth profile was identified as the one least sensitive to the numerical resolution, while the singular modes displayed high sensitivity. Here we provide a physical interpretation using a wave interaction approach for understanding the structure and behavior of both the regular and singular modes. The regular modes are the interfacial Rossby waves located at the concentrated mean vorticity gradient of the shear profile. In contrast, the singular modes result from a one way phase-locking interaction between singular vorticity disturbances, passively advected by the mean flow at different levels of the profile, and the interfacial Rossby waves. We show that this one way interaction can also lead to a sustained non-modal growth of the interfacial Rossby waves that cannot be captured by standard eigenvalue analysis.
How admitting migrants with any skills can help overcome a shortage of workers with particular skills
Creators: name: Stark, Oded
name: Byra, Łukasz
name: Stark, Oded
name: Byra, Łukasz
Publisher: name: Unknown
Year: 2018
Subjects: subject: Institutional and Behavioral Economics
subject: Labor and Human Capital
subject: Skill heterogeneity
subject: Production externalities
subject: Market inefficiency
subject: Shortage of particular skills
subject: Social planner’s choice
subject: “Import” of skills
subject: A migration admission fee
subject: Skill acquisition subsidy

description: A country that experiences a shortage of workers with particular skills naturally considers two responses: import skills or produce them. Skill import may result in large-scale migration, which will not be to the liking of the natives. Skill production will require financial incentives, which will not be to the liking of the ministry of finance. In this paper we suggest a third response: impose a substantial migration admission fee, “import” fee-paying workers regardless of their skills, and use the revenue from the fee to subsidize the acquisition of the required skills by the natives. We calculate the minimal fee that will remedy the shortage of workers with particular skills with fewer migrants than under the skill “import” policy.
Analyzing social disadvantage in rural peripheries in Czechia and Eastern Germany : conceptual model and study design
Creators: name: Keim-Klärner, Sylvia
name: Bernard, Josef
name: Bischof, Susann
name: Dülmen, Christoph Van
name: Klärner, Andreas
name: Steinführer, Annett
name: Keim-Klärner, Sylvia
name: Bernard, Josef
name: Bischof, Susann
name: Dülmen, Christoph Van
name: Klärner, Andreas
name: Steinführer, Annett
Publisher: name: Unknown
Year: 2021
Subjects: subject: Community/Rural/Urban Development
subject: social disadvantage
subject: peripheralization
subject: rural areas
subject: rural peripheries
subject: rural restructuring
subject: opportunity structure
subject: social networks
subject: agency

description: The aim of this Working Paper is to introduce a conceptual model and study design for researching social disadvantage in rural peripheries, focusing on the interplay of social disadvantage and spatial disadvantage. The paper presents the theoretical concepts,understandings, and definitions, as well as the research design we draw on in the international research project ‘Social disadvantage in rural peripheries in Czechia and eastern Germany: opportunity structures and individual agency in a comparative perspective.’ The project investigates the multifaceted relationships between social disadvantage, local and regional opportunity structures,and individual agency in rural peripheries in Czechia and eastern Germany from a comparative perspective. It focuses on two sets of research questions. The first set concerns the quantitative patterns of social disadvantage and spatial disadvantage in rural areas. The second set asks about the impact of opportunity structures as part of the residential context on particularly disadvantaged groups in four case study regions. The project applies theories of peripheralization and rural restructuring, and considers social networks and individual agency. Area-level secondary data and accessibility analyses and qualitative case studies,including ego-centered network analyses and GPS mapping of time-space activity patterns,are used.
description: DOI:10.3220/WP1614067689000
Programme for Improving Mental Healthcare (PRIME) Data
Creators: name: Marx, Maggie
name: Hanslo, Gillian
name: Garman, Emily
name: Crick Lund
Publisher: name: University of Cape Town
Year: 2021
Subjects: subject: 111714 Mental Health
subject: FOS: Health sciences
subject: 111799 Public Health and Health Services not elsewhere classified
subject: 170106 Health, Clinical and Counselling Psychology
subject: FOS: Psychology
subject: 111709 Health Care Administration
subject: 111708 Health and Community Services
subject: Health Care

description: Below follows a list of data sets available from the Programme for Improving Mental Healthcare.
Formative phaseInterviews with service users and providersPHQ-9 validationImplementation phaseDistrict, facility and community profilesImplementation logsProcess evaluation Interviews and focus groups with service providersInterviews and focus groups with service usersFacility detection surveyCommunity surveyCohort studiesTraining and supervisionScale up phaseHMIS and facility profile dataImplementation logsQuality of careTraining and supervisionIn accordance with the consortium's data-sharing agreement, an expression of interest form needs to be submitted to access the data sets and relevant codebooks.
Please fill out the expression of interest form here: https://forms.gle/RmfhAQYayDemhjP86
Interviews, implementation logs and PHQ-9 validation data sets for the Programme for Improving Mental Healthcare.
Creators: name: Crick Lund
name: Marx, Maggie
name: Hanslo, Gillian
name: Garman, Emily
Publisher: name: University of Cape Town
Year: 2021
Subjects: subject: 111714 Mental Health
subject: FOS: Health sciences
subject: 111799 Public Health and Health Services not elsewhere classified
subject: 170106 Health, Clinical and Counselling Psychology
subject: FOS: Psychology
subject: 111709 Health Care Administration
subject: 111708 Health and Community Services
subject: Health Care

description: Below follows a list of data sets available from the Programme for Improving Mental Healthcare.
Formative phaseInterviews with service users and providersPHQ-9 validationImplementation phaseDistrict, facility and community profilesImplementation logsProcess evaluation Interviews and focus groups with service providersInterviews and focus groups with service usersFacility detection surveyCommunity surveyCohort studiesTraining and supervisionScale up phaseHMIS and facility profile dataImplementation logsQuality of careTraining and supervisionIn accordance with the consortium's data-sharing agreement, an expression of interest form needs to be submitted to access the data sets and relevant codebooks.
Please fill out the expression of interest form here: https://forms.gle/RmfhAQYayDemhjP86
Diversity of neuronal activity is provided by hybrid synapses
Creators: name: Xu, Kesheng
name: Maidana, Jean Paul
name: Orio, Patricio
Publisher: name: arXiv
Year: 2019
Subjects: subject: Neurons and Cognition (q-bio.NC)
subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: Many experiments have evidenced that electrical and chemical synapses -- hybrid synapses -- coexist in most organisms and brain structures. The role of electrical and chemical synapse connection in diversity of neural activity generation has been investigated separately in networks of varying complexities. Nevertheless, theoretical understanding of hybrid synapses in diverse dynamical states of neural networks for self-organization and robustness still has not been fully studied. Here, we present a model of neural network built with hybrid synapses to investigate the emergence of global and collective dynamics states. This neural networks consists of excitatory and inhibitory population interacting together. The excitatory population is connected by excitatory synapses in small world topology and its adjacent neurons are also connected by gap junctions. The inhibitory population is only connected by chemical inhibitory synapses with all-to-all interaction. Our numerical simulations show that in the balanced networks with absence of electrical coupling, the synchrony states generated by this architecture are mainly controlled by heterogeneity among neurons and the balance of its excitatory and inhibitory inputs. In balanced networks with strong electrical coupling, several dynamical states arise from different combinations of excitatory and inhibitory weights. More importantly, we find that these states, such as synchronous firing, cluster synchrony, and various ripples events, emerge by slight modification of chemical coupling weights. For large enough electrical synapse coupling, the whole neural networks become synchronized. Our results pave a way in the study of the dynamical mechanisms and computational significance of the contribution of mixed synapse in the neural functions.
Community cohesion and assimilation equilibria
Creators: name: Stark, Oded
name: Jakubek, Marcin
name: Szczygielski, Krzysztof
name: Stark, Oded
name: Jakubek, Marcin
name: Szczygielski, Krzysztof
Publisher: name: Unknown
Year: 2018
Subjects: subject: Community/Rural/Urban Development
subject: Financial Economics
subject: Labor and Human Capital
subject: Community cohesion
subject: Social proximity
subject: Interpersonal comparisons
subject: Relative deprivation
subject: Migrants’ assimilation behavior

description: We study the assimilation behavior of a group of migrants who live in a city populated by native inhabitants. We conceptualize the group as a community, and the city as a social space. Assimilation increases the productivity of migrants and, consequently, their earnings. However, assimilation also brings the migrants closer in social space to the richer native inhabitants. This proximity subjects the migrants to relative deprivation. We consider a community of migrants whose members are at an equilibrium level of assimilation that was chosen as a result of the maximization of a utility function that has as its arguments income, the cost of assimilation effort, and a measure of relative deprivation. We ask how vulnerable this assimilation equilibrium is to the appearance of a “mutant” - a member of the community who is exogenously endowed with a superior capacity to assimilate. If the mutant were to act on his enhanced ability, his earnings would be higher than those of his fellow migrants, which will expose them to greater relative deprivation. We find that the stability of the pre-mutation assimilation equilibrium depends on the cohesion of the migrants’ community, expressed as an ability to effectively sanction and discourage the mutant from deviating. The equilibrium level of assimilation of a tightly knit community is stable in the sense of not being vulnerable to the appearance of a member becoming better able to assimilate. However, if the community is loose-knit, the appearance of a mutant will destabilize the pre-mutation assimilation equilibrium, and will result in a higher equilibrium level of assimilation.
O'ZBEKISTONDA XOTIN-QIZLAR BANDLIGINI TA'MINLASHGA QARATILGAN ISLOHOTLARNING YANGI YO'NALISHLARI
Creators: name: Olimjonova Zarnigor Olimjon qizi
Publisher: name: Zenodo
Year: 2025

description: Annotatsiya. Ushbu maqolada O‘zbekistonda xotin-qizlar bandligini ta’minlashga qaratilgan islohotlarning yangi yo‘nalishlari, mavzuga oid huquqiy-me’yoriy hujjatlar, tadbirkorlik, kichik biznes, oilaviy tadbirkorlikni rivojlantirishga qaratilgan amaliy harakatlar ilmiy tahlil qilingan.
Positivity constraints for lepton polarization in neutrino deep inelastic scattering
Creators: name: Bourrely, Claude
name: Soffer, Jacques
name: Teryaev, Oleg V
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We consider the spin polarization of leptons produced in neutrino and antineutrino nucleon deep inelastic scattering, via charged currents, and we study the positivity constraints on the spin components in a model independent way. These results are very important, in particular in the case of $τ^{\pm}$ leptons, because the polarization information is crucial in all future neutrino oscillation experiments.
description: 14 pages, 4 figures
Symmetric Calorons
Creators: name: Ward, R. S.
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: Calorons (periodic instantons) interpolate between monopoles and instantons, and their holonomy gives approximate Skyrmion configurations. We show that, for each caloron charge N \leq 4, there exists a one-parameter family of calorons which are symmetric under subgroups of the three-dimensional rotation group. In each family, the corresponding symmetric monopoles and symmetric instantons occur as limiting cases. Symmetric calorons therefore provide a connection between symmetric monopoles, symmetric instantons and Skyrmions.
description: 12 pages, typos corrected
Structural and morphological investigation of Langmuir-Blodgett SWCNT/behenic acid multilayers
Creators: name: Di Luccio, T.
name: Antolini, F.
name: Aversa, P.
name: Scalia, G.
name: Tapfer, L.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: The goal of our work has been the incorporation of single wall carbon nanotubes (SWCNTs) in Langmuir-Blodgett organic multilayers. We deposited multilayers consisting of six cadmium behenate (CdBe) layers alternated with one layer of SWCNTs. SWCNTs and CdBe molecules were spread at the air/water interface and deposited at a fixed compression pressure for CdBe (27mN/m) and two different compression pressures for the nanotubes, 15 and 45mN/m, respectively. Low angle X-ray measurements exhibited distinct satellite peaks in all the samples demonstrating that the periodicity of the LB CdBe reference sample was conserved when SWCNTs were inserted in the structure. In agreement with the observations at optical and electronic microscopes, the samples deposited at the higher compression pressure (45mN/m) presented more densely-packed and more uniform coverage of nanotubes.
description: 13 pages including 4 figures and 1 table. Carbon, in press
Localization of Classical Waves in Weakly Scattering Two-Dimensional Media with Anisotropic Disorder
Creators: name: Samelsohn, Gregory
name: Freilikher, Valentin
Publisher: name: arXiv
Year: 2004
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study the localization of classical waves in weakly scattering 2D systems with anisotropic disorder. The analysis is based on a perturbative path-integral technique combined with a spectral filtering that accounts for the first-order Bragg scattering only. It is shown that in the long-wavelength limit the radiation is always localized, and the localization length is independent of the direction of propagation, the latter in contrast to the predictions based on an anisotropic tight-binding model. For shorter wavelengths that are comparable to the correlation scales of the disorder, the transport properties of disordered media are essentially different in the directions along and across the correlation ellipse. There exists a frequency-dependent critical value of the anisotropy parameter, below which waves are localized at all angles of propagation. Above this critical value, the radiation is localized only within some angular sectors centered at the short axis of the correlation ellipse and is extended in other directions.
description: 10 pages, 5 figures
Towards Enhancing the Role of Microfinance for Safety Nets of the Poor
Creators: name: Zeller, Manfred
name: Zeller, Manfred
Publisher: name: Unknown
Year: 1999
Subjects: subject: Community/Rural/Urban Development
subject: microfinance
subject: MFI
subject: poverty

description: Many of the poor borrow, more save, and most of them demand insurance products or related substitutes. However, most of these financial products, especially those catering towards the need for consumption stabilization are only offered by the informal market. Microfinance Institutions (MFIs) that wish to increase their relevance for the poor are well advised to innovate with financial services for income and consumption smoothing. Public action can further promote innovations by supporting pilot projects and related action research. Evaluations of MFIs that receive financial support by government or donors so as to make a contribution to the alleviation of poverty ought to include checks on whether the MFI provides financial products for income and consumption smoothing, such as precautionary savings services, emergency credit, insurance services, or implicit insurance substitutes. Such checks can be undertaken at low cost by simply looking at the terms of the financial products currently offered, and they can identify other poverty-oriented product innovations that can be easily implemented and can in many circumstances increase the business volume and profitability of the MFI.
Time Variation of the Fine Structure Constant Driven by Quintessence
Creators: name: Anchordoqui, Luis
name: Goldberg, Haim
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: There are indications from the study of quasar absorption spectra that the fine structure constant $α$ may have been measurably smaller for redshifts $z>2.$ Analyses of other data ($^{149}$Sm fission rate for the Oklo natural reactor, variation of $^{187}$Re $β$-decay rate in meteorite studies, atomic clock measurements) which probe variations of $α$ in the more recent past imply much smaller deviations from its present value. In this work we tie the variation of $α$ to the evolution of the quintessence field proposed by Albrecht and Skordis, and show that agreement with all these data, as well as consistency with WMAP observations, can be achieved for a range of parameters. Some definite predictions follow for upcoming space missions searching for violations of the equivalence principle.
description: Final version, to be published in Phys Rev D
Decentralization and Public Sector Delivery of Health and Education Services: The Indian Experience
Creators: name: Mahal, Ajay
name: Srivastava, Vivek
name: Sanan, Deepak
name: Mahal, Ajay
name: Srivastava, Vivek
name: Sanan, Deepak
Publisher: name: Unknown
Year: 2000
Subjects: subject: Community/Rural/Urban Development
subject: Health Economics and Policy
subject: decentralization
subject: India

description: The paper has two main objectives. The first is to trace the progress in the process of decentralisation in the provision of public services in India. The second is to test the hypothesis that decentralisation in the system of public service delivery in primary health care and education led to improved outcomes for the rural Indian population. Before 1992, with few exceptions, there was little movement towards decentralisation. Rural local bodies functioned primarily as program executing agents for government line departments, with little control over finances, administration, or the pattern of expenditure. The only decentralisation that existed was in the importance of state governments vis-à-vis the centre. After the 1992 Constitutional Amendments, significant progress has taken place in the form of the passing of conformity legislation by state governments, the setting up of State Finance Commissions to examine the distribution of resources from states to local bodies, and accelerated moves towards transfer of planning and expenditure responsibilities to village bodies. The paper used data from the 1994 NCAER survey to test the hypothesis that increased decentralisation/democratisation positively influences enrolment rates and child mortality once the influence of socioeconomic circumstances, civil society organisations, the problem of capture of local bodies by elite groups, and so on are controlled for. Our main empirical findings are that indicators of democratisation and public participation, such as frequency of elections, presence of non-governmental organisations, parent-teacher associations and indicator variables for decentralised states generally have the expected positive effects, although these are not always statistically indistinguishable from zero.
Investigating students’ and teachers’ perceptions towards CLIL instruction in primary schools: A comparison between Greece and Spain
Creators: name: Πριόβολου, Μαρία Κωνσταντίνου
Publisher: name: Aristotle University of Thessaloniki
Year: 2021
Subjects: Μέθοδος διδασκαλίας CLIL
Αντιλήψεις των μαθητών και των καθηγητών
Γλωσσική ανάπτυξη
CLIL instruction
Students’ and teachers’ perceptions
Language development

description: H Ολοκληρωμένη Εκμάθηση Περιεχομένου και Γλώσσας εμφανίστηκε στην Ευρώπη ως μία δημοφιλής μέθοδος διδασκαλίας, και έχει εφαρμοστεί σε έναν σημαντικό αριθμό σχολείων σε όλη την Ευρώπη. Μολονότι κάποιες έρευνες στόχευσαν στην διερεύνηση των αντιλήψεων των καθηγητών και των μαθητών όσον αφορά την διδασκαλία CLIL, καμία έρευνα δεν εστίασε στην συγκεκριμένη διερεύνηση σε δύο διαφορετικά εκπαιδευτικά πλαίσια. Συγκεκριμένα, ο σκοπός της παρούσας έρευνας είναι να διερευνήσει και να συγκρίνει τις αντιλήψεις των Ελλήνων και των Ισπανών μαθητών και καθηγητών όσον αφορά την διδασκαλία CLIL στα δημοτικά σχολεία. Η πρώτη μελέτη πραγματοποιήθηκε στο «3ο Πρότυπο Πειραματικό Δημοτικό Σχολείο Ευόσμου» στην Θεσσαλονίκη, στην Ελλάδα ενώ η δεύτερη διεξήχθη στο « Κολέγιο Doctor Azúa», ένα δημόσιο δημοτικό σχολείο στην Σαραγόσα, στην Ισπανία. Σε κάθε σχολείο, μαθητές της τρίτης, τετάρτης και πέμπτης δημοτικού συμμετείχαν στην έρευνα απαντώντας σε ένα ερωτηματολόγιο. Επιπλέον, Έλληνες και Ισπανοί καθηγητές, εξειδικευμένοι στην μέθοδο διδασκαλίας CLIL, έδωσαν προσωπικές συνεντεύξεις. Τα αποτελέσματα έδειξαν ότι οι μαθητές έχουν θετικές αντιλήψεις όσον αφορά την διδασκαλία CLIL και πως μέσα από ομαδικές εργασίες
description: Content Language and Integrated Learning (CLIL) emerged in Europe as a popular teaching approach and is implemented in a significant number of schools around Europe. Although some studies have aimed at investigating teachers' and students’ perceptions towards CLIL instruction, no studies have focused on the particular investigation in two different educational contexts. Specifically, the purpose of this particular research is to investigate and to compare Greek to Spanish students’ and teachers’ perceptions towards CLIL instruction in primary schools. The first study took place in the “3rd Model Experimental Primary School of Evosmos” in Thessaloniki, Greece while the second study was conducted in “Colegio público Doctor Azúa” school, a public primary school in Zaragoza, Spain. In each school, third, fourth, and fifth graders participated by answering a questionnaire. Also, Greek and Spanish teachers, specialized in CLIL approach, were interviewed in face-to-face interviews. Results showed that students do hold positive perceptions towards CLIL instruction, and that they do believe that through cooperative tasks their language development is enhanced. Findings of the current study also revealed teachers’ perceptions concerning the difficulties that learners face when using L2 in the CLIL classroom. Moreover, the study reaches some rather essential conclusions and offers some useful suggestions for further research
Fused integrable lattice models with quantum impurities and open boundaries
Creators: name: Doikou, Anastasia
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: The alternating integrable spin chain and the $RSOS(q_{1},q_{2};p)$ model in the presence of a quantum impurity are investigated. The boundary free energy due to the impurity is derived, the ratios of the corresponding $g$ functions at low and high temperature are specified and their relevance to boundary flows in unitary minimal and generalized coset models is discussed. Finally, the alternating spin chain with diagonal and non--diagonal integrable boundaries is studied, and the corresponding boundary free energy and $g$ functions are derived.
description: 21 pages, LATEX, minor revisions
Εκκλησία και Αθλητισμός
Creators: name: Λέντζος, Κωνσταντίνος Νικολάου
Publisher: name: Aristotle University of Thessaloniki
Year: 2021
Subjects: Ορθόδοξη Εκκλησία
Αθλητισμός
Άγιος Νεκτάριος, αθλητικός Σύλλογος
Orthodox Church
Sports
Sant Nectarios, sports club

description: Η παρακάτω μελέτη διερευνά τη συσχέτιση μεταξύ της Εκκλησίας και του αθλητικού ιδεώδους. Συγκεκριμένα, προβαίνει σε μια σύντομη ιστορική αναδρομή στην έννοια του αθλητισμού, κατά τη διάρκεια της γέννησής του στην Αρχαία Ελλάδα και τη μετέπειτα πορεία του στη Ρωμαϊκή και Βυζαντινή εποχή, με τη διαμόρφωση και του χριστιανικού ιδεώδους. Σε κατοπινό κεφάλαιο, η μελέτη επικεντρώνεται στην έννοια του αθλητή, στο ιερό βιβλίο της Βίβλου και ειδικότερα στην Καινή Διαθήκη, ενώ μετέπειτα η έρευνα ασχολείται με τη διαμόρφωση της αθλητικής παράδοσης της εκκλησίας και τη μελέτη του Αγίου Νεκταρίου, ως προστάτη του αθλητισμού, με την παρουσίαση της σχετικής αλληλογραφίας και των ενεργειών που έγιναν από την πλευρά του συλλόγου γυμναστών, ώστε να αναγνωριστεί ως προστάτης. Τέλος, η εργασία κλείνει με την έκθεση των παράλληλων συσχετίσεων μεταξύ της Εκκλησίας και του αθλητισμού
description: The following study explores the correlation between the Orthodox Church and the sports ideal. Specifically, he makes a brief historical review of the concept of sport during his birth in ancient Greece and its subsequent course in the Roman and Byzantine eras, with the formation of the Christian ideal. In a later chapter, the study focuses on the concept of the athlete in the Bible and especially in the New Testament, while later the research deals with the formation of the sports tradition of the church and the study of St. Nectarios, as the patron saint of sports, with the presentation of the relevant correspondence and the actions taken by the gymnasts' association in order to be recognized as a patron. Finally, the work closes with a report on the parallel correlations between the Orthodox Church and sports
description: Σε συνεργασία με: Κοινωνικής Θεολογίας (Εθνικό και Καποδιστριακό Πανεπιστήμιο Αθηνών)
Developmental costs of yellow colouration in fire salamanders and experiments to test the efficiency of yellow as a warning colouration
Creators: name: Caspers, Barbara A.
name: E. Tobias Krause
name: Hermanski, Isabelle
name: Wiesbrock, Christopher
name: Friedrich-Wilhelm Kastrup
name: Steinfartz, Sebastian
Publisher: name: Brill Online
Year: 2020
Subjects: subject: 60299 Ecology not elsewhere classified
subject: FOS: Biological sciences

description: Warning colouration reduces predation risk by signalling or mimicking the unpleasantness of prey and therefore increases survival. We tested in two experiments the evolutionary costs and benefits of the yellow colour pattern in fire salamanders (Salamandra salamandra), which display a yellow/black colour pattern usually associated with toxic alkaloids. Our first experiment aimed to test whether the development of colouration is condition dependent and thus related to developmental costs, i.e. influenced by resource availability during the developmental process. Therefore, we reared fire salamander larvae under different nutritional conditions and compared the relative amount of yellow they developed after metamorphosis. Fire salamander larvae reared under limited food conditions had a lower proportion of yellow following metamorphosis than control larvae reared under superior food conditions. In a second experiment we tested whether the proportion of yellow has an impact on the risk of being attacked using artificial models. We tested, in salamander-free and salamander-occupied natural habitats, whether artificial clay models with different proportions of yellow and black receive different attack rates from potential predators (birds, mammals, insects). In clay models the proportion of yellow and the site had a significant effect on predation risk. Models with larger amounts of yellow had fewer bite marks from predators such as carabid beetles and birds, but only in sympatry with salamanders. In conclusion, the early expression of conspicuous colouration seems to be condition dependent and therefore potentially costly. Furthermore, the yellow colouration of fire salamanders act as a signal that potentially reduces their risk of being attacked by predators. Thus, the yellow colouration of fire salamanders seems to represent an adaptive trait that reduces the risk of predation, which can be expressed in higher quantity by individuals of a certain condition.
Additional file 1 of Co-creation of a step-by-step guide for specifying the test-management pathway to formulate focused guideline questions about healthcare related tests
Creators: name: Tuut, Mariska K.
name: Gopalakrishna, Gowri
name: Leeflang, Mariska M.
name: Bossuyt, Patrick M.
name: van der Weijden, Trudy
name: Burgers, Jako S.
name: Langendam, Miranda W.
Publisher: name: figshare
Year: 2024
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Chemical Sciences not elsewhere classified
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Science Policy

description: Supplementary Material 1.
The Atiyah-Hitchin bracket for the cubic nonlinear Schrodinger equation. ii. Periodic potentials
Creators: name: Vaninsky, K. L.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Mathematical Physics (math-ph)
subject: Symplectic Geometry (math.SG)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 35Q53

description: This is the second in a series of papers on Poisson formalism for the cubic nonlinear Schrödinger equation with repulsive nonlinearity. In this paper we consider periodic potentials. The inverse spectral problem for the periodic auxiliary Dirac operator leads to a hyperelliptic Riemann surface $\G$. Using the spectral problem we introduce on this Riemann surface a meromorphic function $¶$. We call it the Weyl function, since it is closely related to the classical Weyl function discussed in the first paper. We show that the pair $(\G,¶)$ carries a natural Poisson structure. We call it the deformed Atiyah--Hitchin bracket. The Poisson bracket on the phase space is the image of the deformed Atiyah--Hitchin bracket under the inverse spectral transform.
description: 38 pages, 6 figures