cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
CEO duality, state shareholder and CEO turnover: Evidence from Vietnamese stock market
Creators: name: Tran, Quoc Trung
name: Nguyen, Xuan Minh
name: Nguyen, Tien Hoang
name: Tran, Quoc Trung
name: Nguyen, Xuan Minh
name: Nguyen, Tien Hoang
Publisher: name: Unknown
Year: 2016
Subjects: subject: Industrial Organization
subject: CEO duality
subject: state shareholder
subject: CEO turnover
subject: Vietnam

description: The extant literature shows that the effects of CEO duality and state shareholder on the sensitivity of management turnover to firm performance are mixed. Using a sample of 1,260 firm-year observations from 226 firms listed in Vietnam from 2009 to 2015, we find supporting evidence for manager turnover mechanism. Interestingly, research results show that the negative relationship between firm performance and CEO turnover is weaker when CEOs simultaneously holds chairman positions. These findings imply that the separation of CEO and chairman positions is necessary to enhance corporate governance.
Analysis of 6cm VLBI polarization observations of a complete sample of northern BL Lacertae Objects
Creators: name: Gabuzda, D. C.
name: Pushkarev, A. B.
name: Cawthorne, T. V.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The results of VLBI total intensity (I) and linear polarization (P) observations at 6cm are presented for ten radio bright BL Lacertae objects. These images complete first-epoch polarization observations for the 1-Jy sample of northern BL Lacertae objects defined by Kuhr and Schmidt. Estimates of superluminal speeds are presented for several sources, bringing the total number of sources in the sample for which such estimates are available to 16. Second epoch observations currently being reduced should yield speed estimates for VLBI features in essentially all the sources in the sample. The jet magnetic fields of these BL Lacertae objects are usually transverse to the local jet direction, but a sizeable minority (about 30%) have VLBI jet components with longitudinal magnetic fields. This may suggest that the conditions in the VLBI jets of BL Lacertae objects are favorable for the formation of relativistic shocks; alternatively, it may be that the toroidal component of the intrinsic jet magnetic field is characteristically dominant in these sources.
description: 15 pages, 14 figures, 5 tables
Star Formation and Dynamics in the nuclei of AGN
Creators: name: Davies, R. I.
name: Tacconi, L. J.
name: Genzel, R.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Using adaptive optics on Keck and the VLT in the H- and K-bands, we have begun a project to probe the dynamics and star formation around AGN on scales of 0.1arcsec. The stellar content of the nucleus is traced through the 2.29micron CO2-0 and 1.62micron CO6-3 absorption bandheads. These features are directly spatially resolved, allowing us to measure the extent and distribution of the nuclear star forming region. The dynamics are traced through the 2.12micron H_2 1-0S(1) and 1.64micron [FeII] emission lines, as well as stellar absorption features. Matching disk models to the rotation curves at various position angles allows us to determine the mass of the stellar and gas components, and constrain the mass of the central black hole. In this contribution we summarise results for the two type~1 AGN Mkn231 and NGC7469.
description: contribution to "The interplay among Black Holes, Stars and ISM in Galactic Nuclei", March 2004
You : A poetic game about meaning making and absense
Creators: name: Grace, Lindsay
Publisher: name: American University (Washington, D.C.)
Year: 2023
Subjects: classificationCode: 4607
subject: Graphics, augmented reality and games

description: You is a game about play and the illusive pursuit of meaningful play. Each level of the game is about problem solving a space for You to meet objectives while making sense of the in-game content. Using the player character You, the player is both making meaning out of nonsense and finding meaning where it is absent. The game is designed as a light-hearted critical reflection on the intersection of narratology and ludology. Players must play with You, I and Them in the immutable structure of meaning making that forms the challenge of the game.
Influence of biostimulators Regoplant and Charkor on growth and development of micropropagated pear plants at acclimatization stage
Creators: name: Dimitrova N., Nacheva L.
Publisher: name: Zenodo
Year: 2021

description: In recent years, there has been a growing interest in biostimulants as an alternative to chemicals for safe and sustainable agriculture. The aim of this study was to analyze the effect of biostimulators Regoplant and Charkor (Agrobiotech, Ukraine) on growth and development of micropropagated pear plants (Pyrus communis L. ‘Old Home’ x ‘Farmingdale’) at acclimatization stage. In vitro propagated and rooted plantlets from pear rootstock OHF 333 were acclimatized in a floating system with 100 μl L-1 Regoplant or Charkor. Plantlets with no additional treatments served as control. Data on growth parameters, chlorophyll a fluorescence (ОJIP test) and antioxidant activity were collected 45 days after transplanting to ex vitro conditions. Enrichment of the nutrient solution with biostimulator Charkor (100 μl L-1) in floating system led to the highest survival rate (82.5%) of pear plants, the greatest stem length, number, fresh and dry mass of leaves. Combining innovative approaches such as a floating system and biostimulators would significantly improve the acclimatization and the overall process of micropropagation of fruit plants.
Fonsechellus Silvestri 1946
Creators: name: Zilberman, Bruno
name: Fontes, Luiz Roberto
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Staphylinidae
Fonsechellus

description: Key to Fonsechellus species
  1. Tibiae heavily sclerotized (see Kistner, 1993 figs. 1a-1c). Associated with Velocitermes sp.or Diversitermes sp...................... F.diversicolor Silvestri
 1’. Tibiae moderately sclerotized (see Kistner,1993 figs.1a-1c)................... 2
  2. Sclerotized parts pale yellow.Labrum swollen in lateral view(Figs.25,26). Associated with Araujotermes caissara Fontes............... F.fontesi Kistner
 2’. Sclerotized parts darker, yellowish to reddish. Labrum not swollen in lateral view..........................................................................................3
 3. Bristles on the sides of the abdomen, especially in segment VI, with straight,non-geniculate tips...............................................................4
  3’. Bristles on the sides of the abdomen, especially in segment VI, with geniculate tips (see Silvestri, 1946, figs. 14, 16). Associated with Nasutitermes sp.(N.distinctellus, nomen nudum (Silvestri,1946))............................................................................................ F.bicolor Silvestri
  4. Male and female with short bristles on abdomen. Pronotum with four macrosetae:two on disk near apex and two marginal;discal setae closer together than those of marginal.Associated with Subulitermes sp............................................................................................ F.fragilis Seevers
  4’. Female with long bristles on abdomen; male similar in general aspect to male or female of F. fragilis. Pronotum of female with 6 pairs macrosetae: two pairs on anterior margin near apical angle, two on each lateral margin, one subapical pair and another pair near base. Associated with Atlantitermes guarinim Fontes....................................................................................................... F.heterosetosus sp.nov.
description: Published as part of Zilberman, Bruno & Fontes, Luiz Roberto, 2020, New species and morphological notes on the termitophilous genera Fonsechellus Silvestri and Oecidiophilus Silvestri from Brazil (Staphylinidae, Aleocharinae, Corotocini, Termitoceina), pp. 1-13 in Papéis Avulsos de Zoologia (Pap. Avulsos Zool., S. Paulo) (Pap. Avulsos Zool., S. Paulo) 60 (21) on page 3, DOI: 10.11606/1807-0205/2020.60.special-issue.21, http://zenodo.org/record/4615191
Collapse and revivals for systems of short-range phase coherence
Creators: name: Mahmud, K.W.
name: Johnson, Philip
name: Jiang, L.
name: Tiesinga, E.
Publisher: name: American University
Year: 2023

description: We predict the existence of novel collapse and revival oscillations that are a distinctive signature of the short-range off-diagonal coherence. Starting with an atomic Mott state in a one-dimensional optical lattice, suddenly raising the lattice depth freezes particle–hole pairs in place and induces phase oscillations. The peak of the quasi-momentum distribution, revealed through time-of- ight interference, oscillates between a maximum occupation at zero quasi-momentum (the point) and the edge of the Brillouin zone. We show that the population enhancements at the edge of the Brillouin zone are due to short-range coherence due to particle–hole pairs, and we nd similar effects for fermions and Bose– Fermi mixtures in a lattice. Our results open a new dynamic probe for strongly correlated many-body states with short-range phase coherence that is distinct from the matter–wave collapse and revivals previously observed in the long- range coherent super uid regime.
Auxiliary field Monte-Carlo for charged particles
Creators: name: Maggs, A. C.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: This article describes Monte-Carlo algorithms for charged systems using constrained updates for the electric field. The method is generalized to treat inhomogeneous dielectric media, electrolytes via the Poisson-Boltzmann equation and considers the problem of charge and current interpolation for off lattice models. We emphasize the differences between this algorithm and methods based on the electrostatic potential, calculated from the Poisson equation.
description: 11 pages 6 figures. Revtex4
Transition pattern of Indian states across different categories of growth and development: Post economic liberalisation experience
Creators: name: Saksena, Shalini
name: Deb, Moumita
name: Saksena, Shalini
name: Deb, Moumita
Publisher: name: Unknown
Year: 2016
Subjects: subject: Labor and Human Capital
subject: Human development
subject: economic growth
subject: Indian states
subject: economic liberalisation

description: This paper analyses the emerging trends in twenty eight major states in India in respect of few key parameters which have an intrinsic bearing on social and economic development and establishes the economic growth (EG) - human development (HD) nexus in the post economic reforms era (1990s to 2010s). Data for the period 1990 to 2011/12 is used to analyse the relative performance of Indian states on human development and growth indicators and determine if inter-state disparity has increased or decreased over time. The two way relationship between EG and HD is empirically estimated using cross section pooled data. Further, states are classified into four different categories of growth and development: (i) vicious cycle (low EG - low HD), (ii) virtuous cycle (high EG - high HD), (iii) lopsided-EG (high EG - low HD) and (iv) lopsided-HD (low EG - high HD), for the years 1993, 1999-2000 and 2011-12. The pattern of transition of states across different categories over the two decades is traced. Such categorization and the shifts therein have obvious policy implications. The paper highlights the need for more focused regional planning and a simultaneous policy thrust on EG and HD to enable states escape the vicious cycle of low growth and development.
Long-Term Clustering, Scaling, and Universality in the Temporal Occurrence of Earthquakes
Creators: name: Corral, Alvaro
Publisher: name: arXiv
Year: 2003
Subjects: subject: Condensed Matter (cond-mat)
subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences

description: Scaling analysis reveals striking regularities in earthquake occurrence. The time between any one earthquake and that following it is random, but it is described by the same universal-probability distribution for any spatial region and magnitude range considered. When time is expressed in rescaled units, set by the averaged seismic activity, the self-similar nature of the process becomes apparent. The form of the probability distribution reveals that earthquakes tend to cluster in time, beyond the duration of aftershock sequences. Furthermore, if aftershock sequences are analysed in an analogous way, yet taking into account the fact that seismic activity is not constant but decays in time, the same universal distribution is found for the rescaled time between events.
description: short paper, only 2 figures
Examining the impact of electronic supply chain management processes on customer satisfaction: A literature review
Creators: name: Shamout, Mohamed Dawood
name: Emeagwali, Okechukwu Lawrence
name: Shamout, Mohamed Dawood
name: Emeagwali, Okechukwu Lawrence
Publisher: name: Unknown
Year: 2016
Subjects: subject: Consumer/Household Economics
subject: Industrial Organization
subject: Supply chain management processes
subject: customer satisfaction
subject: electronic supply chain management

description: This paper aims to discuss a collection of empirical studies examining the impact of electronic supply chain management (e-SCM) processes on customer satisfaction. A review of the relevant literature has shown that a limited number of previous studies has attempted to identify the impact of e-SCM processes on customer satisfaction. Thus, the obtained data from the secondary source will be discussed and explained here. Findings of this study show the impact of e-SCM processes on customer satisfaction. This study has been based on a literature review and opens the door for future researchers to further expand this field.
Diagonal approximation of the form factor of the unitary group
Creators: name: Berkolaiko, G.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: The form factor of the unitary group U(N) endowed with the Haar measure characterizes the correlations within the spectrum of a typical unitary matrix. It can be decomposed into a sum over pairs of ``periodic orbits'', where by periodic orbit we understand any sequence of matrix indices. From here the diagonal approximation can be defined in the usual fashion as a sum only over pairs of identical orbits. We prove that as we take the dimension $N$ to infinity, the diagonal approximation becomes ``exact'', that is converges to the full form factor.
description: 9 pages
Rural human capital investment’s driving effects to labor migration - An empirical study based on Vector Error Correction Model
Creators: name: Zhong, Shihu
name: Juan, Tang
name: Zhong, Shihu
name: Juan, Tang
Publisher: name: Unknown
Year: 2016
Subjects: subject: Community/Rural/Urban Development
subject: Labor and Human Capital
subject: Rural human capital investment
subject: labor migration
subject: vector error correction model (VECM)
subject: time lag effect

description: Based on vector error correction model, this essay aims to test the relationship between the rural human capital investment and labor migration by using the data of Hunan province from 1994 to 2014. Experiment results show the long-term balanced relationship between rural human capital investment and labor migration. Rural human capital investment can boost the transfer of labor force effectively in the long run. While none obvious effect would take in a short time. There is time lag effect on human capital investment. The time needed to amend the cointegration relationship would be long and the primary factor that affects the labor migration is the prophase investment of human capital.
title: Αμπελουργία ακριβείας και η δυνατότητα χρήσης τεχνολογικών μέσων σε Ελληνικούς αμπελώνες
title: Precision Viticulture and prospects of using advanced technological means in Greek Vineyards
titleType: AlternativeTitle
Creators: name: Σταθάκη, Μαρία
Publisher: name: Πανεπιστήμιο Δυτικής Αττικής
Year: 2021
Subjects: Αμπελουργία ακριβείας
GPS
GIS
WSN
NDVI
Oenoview
VineRobot
Wall-Ye
TED
VINBOT
Ωίδιο
Περονόσπορος
Ίσκα
Ηλεκτρική αγωγιμότητα

description: Η αμπελουργία ακριβείας είναι ένας καινοτόμος τρόπος παρακολούθησης και λήψης αποφάσεων για τον αμπελώνα με τη χρήση αισθητήρων, GPS και τη χρήση τηλεπισκόπησης. Ενδιαφέρον προκαλεί η λειτουργία των συστημάτων GPS και GIS που χρησιμεύουν στην δημιουργία εδαφικών χαρτών αφού βοηθούν στην ανάκτηση δεδομένων τοποθεσίας και επιπλέον γίνεται αναφορά στους σύγχρονους τρόπους παρακολούθησης του αμπελώνα όπως τα συστήματα παρατήρησης, τα συστήματα παρακολούθησης παραγωγής, τα συστήματα παρακολούθησης των χαρακτηριστικών των εδαφών που μπορούν να μεταβληθούν όπως η ηλεκτρική αγωγιμότητα και η εφαρμογή εισροών με μεταβλητές δόσεις ανάλογα με τις ανάγκες του αμπελώνα. Η ηλεκτρική αγωγιμότητα διαφέρει ανάλογα με την αλατότητα του εδάφους, την υγρασία και τη θερμοκρασία, ενώ επηρεάζεται και από την περιεκτικότητα του εδάφους σε άργιλο ή άμμο. Αναφέρεται ο αισθητήρας παραγωγής WSN (Wireless Sensor Network) ο οποίος επιτρέπει τη παρακολούθηση αμπελώνων σε πραγματικό χρόνο και η χρήση του αισθητήρα βλάστησης NDVI που σχετίζεται με τις ιδιότητες του φυλλώματος. Αναφέρεται η χρήση του Oenoview, που αρχίζει να κερδίζει έδαφος σιγά-σιγά στην Ελλάδα, το οποίο βοηθά στην χαρτογράφηση των αμπελώνων και της παραγωγής, όπως και η ύπαρξη ρομποτικών συστημάτων στον αμπελώνα όπως το VineRobot το οποίο επιτρέπει τη συνεχή παρακολούθηση της απόδοσης, του υδατικού στρες, της ποιότητας των σταφυλιών καθώς λαμβάνει και αποφάσεις για την εφαρμογή εισροών. Το Wall-Ye, είναι ένα ρομποτικό σύστημα το οποίο μπορεί να κινείται αυτόνομα στον αμπελώνα και να πραγματοποιεί κλάδεμα σε κάθε πρέμνο ανάλογα με τις ανάγκες του. Το TED, είναι ένα αυτόνομο ρομπότ το οποίο βοηθάει στο ξεχορτάριασμα των αμπελώνων με εξαιρετική ακρίβεια ακόμα και μετά από δυσμενείς βροχές που ενδεχομένως να έχουν αλλοιώσει το έδαφος. Στα ρομποτικά συστήματα αναφέρεται και το VINBOT το οποίο διαθέτει αισθητήρες για 3D ανακατασκευή των φύλλων ενώ ταυτόχρονα παρακολουθείται η ζωτικότητα των αμπελιών. Τέλος, γίνεται αναφορά σε μεθόδους φυτοπροστασίας ακριβείας με τη βοήθεια των συστημάτων της αμπελουργίας ακριβείας όπου η πρόληψη γίνεται πιο εύκολη από ποτέ, για ασθένειες όπως το Ωίδιο, ο Περονόσπορος και η Ίσκα.
Iron abundances from high-resolution spectroscopy of the open clusters NGC 2506, NGC 6134, and IC 4651
Creators: name: Carretta, E.
name: Bragaglia, A.
name: Gratton, R. G.
name: Tosi, M.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: This is the first of a series of papers devoted to derive the metallicity of old open clusters in order to study the time evolution of the chemical abundance gradient in the Galactic disk. We present detailed iron abundances from high resolution (R~40000) spectra of several red clump and bright giant stars in the open clusters IC 4651, NGC 2506 and NGC 6134. We observed 4 stars of NGC 2506, 3 stars of NGC 6134, and 5 stars of IC 4651 with the FEROS spectrograph at the ESO 1.5 m telescope; moreover, 3 other stars of NGC 6134 were observed with the UVES spectrograph on Kueyen (VLT UT2). After excluding the cool giants near the red giant branch tip (one in IC 4651 and one in NGC 2506), we found overall [Fe/H] values of -0.20 +/- 0.01, rms = 0.02 dex (2 stars) for NGC 2506, +0.15 +/- 0.03, rms = 0.07 dex (6 stars) for NGC 6134, and +0.11 +/- 0.01, rms = 0.01 dex (4 stars) for IC 4651. The metal abundances derived from line analysis for each star were extensively checked using spectrum synthesis of about 30 to 40 Fe I lines and 6 Fe II lines. Our spectroscopic temperatures provide reddening values in good agreement with literature data for these clusters, strengthening the reliability of the adopted temperature and metallicity scale. Also, gravities from the Fe equilibrium of ionization agree quite well with expectations based on cluster distance moduli and evolutionary masses.
description: 13 pages, 7 figures, uses aa.cls, accepted for publication on Astronomy & Astrophysics
Holomorphic mappings between domains with low boundary regularity
Creators: name: Sukhov, Alexandre
Publisher: name: arXiv
Year: 2020
Subjects: subject: Complex Variables (math.CV)
subject: FOS: Mathematics

description: We study proper holomorphic mappings between strictly pseudoconvex domains with low boundary regularity.
description: 11 pages. arXiv admin note: text overlap with arXiv:1703.07243
title: Understanding Student Disengagement within a Caribbean Context
Creators: name: Laurent, Uthel Joseph
Publisher: name: The Open University
Year: 2012

description: Previous research on disengagement has usually treated it as 'disorderly', 'disruptive' or 'deviant' behaviour. As a result, the varied and subtle ways in which disengagement may be manifested at school have been overlooked. This thesis seeks to draw on insights from the interactionist tradition to explain how forms of disengagement are displayed within various situations and the diverse factors that may engender it. These issues are explored in the distinctive context of the Caribbean. The research was undertaken at a secondary school in St. Lucia and ethnographic methods were used to understand students' actions, along with their interpretations, explanations and evaluations of themselves and their circumstances. Hence, the research relied on a range of data sources including lesson observations, informal interviews, and questionnaires. Personal and official documents were also analysed. Moreover, the perspectives of teachers and parents were used to enhance and corroborate students' experiences. The research revealed that students engaged in different forms of both quiet and disruptive disengagement, either on an individual basis or as collective acts. In order to explain these, I examined the demands made on them by teachers, home concerns, as well as peer-related and other institutional factors. A major finding of this research is that while many students expressed a positive orientation to school, they engaged in diverse behaviours which amounted to forms of quiet disengagement. This is important because of its likely consequences for their educational development and subsequent life chances.
Exact solutions of the 3-wave resonant interaction equation
Creators: name: Degasperis, Antonio
name: Lombardo, Sara
Publisher: name: arXiv
Year: 2005
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: The Darboux--Dressing Transformations are applied to the Lax pair associated to the system of nonlinear equations describing the resonant interaction of three waves in 1+1 dimensions. We display explicit solutions featuring localized waves whose profile vanishes at the spacial boundary plus and minus infinity, and which are not pure soliton solutions. These solutions depend on an arbitrary function and allow to deal with collisions of waves with various profiles.
description: 15 pages, 9 figures, standard LaTeX2e, submitted for publication to Physica D
ALMA Imaging of the CO(7-6) Line Emission in the Submillimeter Galaxy LESS 073 at redshift 4.755$^\star$
Creators: name: Zhao, Yinghe
name: Lu, Nanyao
name: Díaz-Santos, Tanio
name: Gao, Yu
name: Xu, C. Kevin
name: Charmandaris, Vassilis
name: Inami, Hanae
name: Rigopoulou, Dimitra
name: Sanders, David B.
name: Huang, Jiasheng
name: Wang, Zhong
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: In this paper we present our imaging observations on the CO(7-6) line and its underlying continuum emission of the young submillimeter galaxy LESS 073 at redshift 4.755, using the Atacama Large Millimeter/submillimeter Array (ALMA). At the achieved resolution of $\sim$$1^{\prime\prime}.2\times0^{\prime\prime}.9$ ($8\times6$~kpc$^2$), the CO(7-6) emission is largely unresolved (with a deconvolved size of $1^{\prime\prime}.1(\pm0^{\prime\prime}.5) \times 0^{\prime\prime}.9(\pm0^{\prime\prime}.8)$), and the continuum emission is totally unresolved. The CO(7-6) line emission has an integrated flux of $0.86\pm0.08$~Jy km/s, and a line width of $343\pm40$ km/s. The continuum emission has a flux density of 0.51 mJy. By fitting the observed far-infrared (FIR) spectral energy distribution of LESS 073 with a single-temperature modified blackbody function, we obtained a dust temperature $T_{\rm dust}=57.6\pm3.5$ K, 60-to-100 $μ$m flux density ratio $f_{60}/f_{100}=0.86\pm0.08$, and total infrared luminosity $L_{\rm IR}=(5.8\pm0.9) \times 10^{12}~L_\odot$. The SED-fit-based $f_{60}/f_{100}$ is consistent with those estimated from various line ratios as advocated by our earlier work, indicating that those proposed line-ratio-based method can be used to practically derive $f_{60}/f_{100}$ for high-$z$ sources. The total molecular gas mass of LESS 073 is $(3.3\pm1.7) \times10^{10}~M_\odot$, and the inferred gas depletion time is about 43 Myr.
description: 8 pages, 6 figures, accepted for publication in ApJ
title: Housing, the Capabilities Approach and Life Satisfaction
Creators: name: Coates, Dermot Peter
Publisher: name: The Open University
Year: 2014

description: This thesis examines the relationships between housing, housing satisfaction and quality of life using the capabilities approach developed by Sen and others as a theoretical framework. This approach is used to engage with housing-related themes and as a way of thinking about how housing contributes to quality of life. It also analyses the scope for heterogeneity in these relationships by looking at the housing experiences of migrant communities in Western Europe and the Irish Traveller community. Despite, the growth of interest in the capabilities approach as a way of structuring social science and policy analysis, there is relatively little substantial research that applies the capabilities approach to housing. This is surprising in view of the fact that the neighbourhood in which a person lives and other characteristics of their housing are likely to be associated with their experienced quality of life as well as the opportunities a person has, objectively speaking. Consequently, this thesis is an attempt to address this gap by applying the capabilities approach to the field of housing research. The thesis is divided into four substantive chapters, each one dealing with a specific aspect of the relationship between housing, housing satisfaction and quality of life. Chapter 2 sets the scene for this study by presenting the results of a critical, broad-based review and summary of the literature with regard to housing, happiness and capabilities. The following chapters build on the foregoing in an empirical context; Chapters 3 and 4 do so primarily with quantitative analyses and Chapter 5 uses a mixed-methods approach including offering some original qualitative research. Chapter 6 summarises what has been achieved and the main contribution of the thesis whilst offering some remarks regarding what might be done in future research and the policy implications of these findings.
Independent Grocery Stores in the Changing Landscape of the U.S. Food Retail Industry
Creators: name: CHO, CLARE
name: VOLPE, RICHARD
name: CHO, CLARE
name: VOLPE, RICHARD
Publisher: name: Unknown
Year: 2017
Subjects: subject: Agricultural and Food Policy
subject: Industrial Organization
subject: Independent grocery stores
subject: food retail
subject: food access

description: Independent grocery stores, or grocery stores whose owners operate fewer than four outlets, generated 11 percent of all U.S. grocery sales in 2015. These stores play an important role in their local communities, helping to ensure food access for residents, particularly in low-income and rural areas. This study uses data from Nielsen’s TDLinx to examine the current (2015) performance of independent grocery stores and changes in the performance of these establishments over the last decade, a period marked by the Great Recession and large changes to the food retail industry. In 2015, independent grocery stores generated $70 billion in sales and employed over 330,000 full-time equivalent employees. In 44 percent of U.S. counties, at least half of the food retailers were independent grocery stores, but their share of total sales was low. From 2005 to 2015, the number of total grocery stores (chain and independent) in the United States increased. However, at the onset of the recession, the number of independent grocery stores stagnated, causing the share of these grocery stores to decline through 2015.
Collapse and revivals for systems of short-range phase coherence
Creators: name: Mahmud, K.W.
name: Johnson, Philip
name: Jiang, L.
name: Tiesinga, E.
Publisher: name: American University (Washington, D.C.)
Year: 2023
Subjects: classificationCode: 51
subject: Physical sciences
subject: FOS: Physical sciences

description: We predict the existence of novel collapse and revival oscillations that are a distinctive signature of the short-range off-diagonal coherence. Starting with an atomic Mott state in a one-dimensional optical lattice, suddenly raising the lattice depth freezes particle–hole pairs in place and induces phase oscillations. The peak of the quasi-momentum distribution, revealed through time-of- ight interference, oscillates between a maximum occupation at zero quasi-momentum (the point) and the edge of the Brillouin zone. We show that the population enhancements at the edge of the Brillouin zone are due to short-range coherence due to particle–hole pairs, and we nd similar effects for fermions and Bose– Fermi mixtures in a lattice. Our results open a new dynamic probe for strongly correlated many-body states with short-range phase coherence that is distinct from the matter–wave collapse and revivals previously observed in the long- range coherent super uid regime.
Photocurrent in conjugated polymers
Creators: name: Horovitz, Baruch
name: Pazy, Ehoud
Publisher: name: arXiv
Year: 2003
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: Nonlinear photocurrent carriers in conjugated polymers, such as polarons, bipolarons and solitons, are considered at low photon energies where a tunnelling process is necessary. We show that polarons usually dominate the photocurrent I due to a novel electric field assisted tunnelling for which ln(I) ~ -E^{-2/3}. For near degenerate polymers an electric field E which exceeds the confinement potential and frequencies above twice the soliton energy, soliton tunnelling is favored. Photocurrent data can then be used to identify the remarkable phenomenon of soliton conduction.
description: 4 pages, 2 eps figures, Revtex
Noncommutative electrodynamics and ultra high energy gamma rays
Creators: name: Castorina, P.
name: Zappala', Dario
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Plane waves in noncommutative classical electrodynamics (NCED) have a peculiar dispersion relation. We investigate the kinematical conditions on this deformed "mass shell" which come from ultra high energy gamma rays and discuss noncommutative dynamical effects on the gamma absorption by the infrared background and on the intrinsic spectrum. Finally we note that in NCED there is a strong correlation between the modified dispersion relation and the presence of dynamical effects in electromagnetic phenomena such as in the case of the synchrotron radiation. From this point of view, the limits on the typical energy scale of the violation of Lorentz invariance obtained by deformed dispersion relations and by assuming undeformed dynamical effects should be taken with some caution.
description: Latex file, 7 pages, to be published in Europhysics Letters
Finite Casimir Energies in Renormalizable Quantum Field Theory
Creators: name: Milton, Kimball A.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum vacuum energy has been known to have observable consequences since 1948 when Casimir calculated the force of attraction between parallel uncharged plates, a phenomenon confirmed experimentally with ever increasing precision. Casimir himself suggested that a similar attractive self-stress existed for a conducting spherical shell, but Boyer obtained a repulsive stress. Other geometries and higher dimensions have been considered over the years. Local effects, and divergences associated with surfaces and edges have been investigated by several authors. Quite recently, Graham et al. have re-examined such calculations, using conventional techniques of perturbative quantum field theory to remove divergences, and have suggested that previous self-stress results may be suspect. Here we show that most of the examples considered in their work are misleading; in particular, it is well-known that in two dimensions a circular boundary has a divergence in the Casimir energy for massless fields, while for general dimension $D$ not equal to an even integer the corresponding Casimir energy arising from massless fields interior and exterior to a hyperspherical shell is finite. It has also long been recognized that the Casimir energy for massive fields is divergent for curved boundaries. These conclusions are reinforced by a calculation of the relevant leading Feynman diagram in $D$ dimensions. Divergences do occur in third order, as has been recognized for many years, but this logarithmic divergence is of questionable relevance to real shells.
description: 20 pages, 2 ps figures, uses ws-procs975x65.cls Invited talk given at Marcel Grossmann X, Rio de Janeiro,July 2003
Antibiofilm activity of Actinobacillus pleuropneumoniae serotyoe 5 capsular polysaccharide
Creators: name: Karwacki, Michael T.
name: Kadouri, Daniel E.
name: Bendaoud, Meriem
name: Izano, Era A.
name: Sampathkumar, Vandana
name: Inzana, Thomas J.
name: Kaplan, Jeffrey B.
Publisher: name: American University
Year: 2023

description: Cell-free extracts isolated from colony biofilms of Actinobacillus pleuropneumoniae serotype 5 were found to inhibit biofilm formation by Staphylococcus aureus, S. epidermidis and Aggregatibacter actinomycetemcomitans, but not by A. pleuropneumoniae serotype 5 itself, in a 96-well microtiter plate assay. Physical and chemical analyses indicated that the antibiofilm activity in the extract was due to high-molecular-weight polysaccharide. Extracts isolated from a mutant strain deficient in the production of serotype 5 capsular polysaccharide did not exhibit antibiofilm activity. A plasmid harboring the serotype 5 capsule genes restored the antibiofilm activity in the mutant extract. Purified serotype 5 capsular polysaccharide also exhibited antibiofilm activity against S. aureus. A. pleuropneumoniae wild-type extracts did not inhibit S. aureus growth, but did inhibit S. aureus intercellular adhesion and binding of S. aureus cells to stainless steel surfaces. Furthermore, polystyrene surfaces coated with A. pleuropneumoniae wild-type extracts, but not with capsule-mutant extracts, resisted S. aureus biofilm formation. Our findings suggest that the A. pleuropneumoniae serotype 5 capsule inhibits cell-to-cell and cell-to-surface interactions of other bacteria. A. pleuropneumoniae serotype 5 capsular polysaccharide is one of a growing number of bacterial polysaccharides that exhibit broad-spectrum, nonbiocidal antibiofilm activity. Future studies on these antibiofilm polysaccharides may uncover novel functions for bacterial polysaccharides in nature, and may lead to the development of new classes of antibiofilm agents for industrial and clinical applications.
Brane Universes Tested by Supernovae Ia
Creators: name: Godlowski, Wlodzimierz
name: Szydlowski, Marek
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We discuss observational constrains coming from supernovae Ia imposed on the behaviour of the Randall-Sundrum models. In the case of dust matter on the brane, the difference between the best-fit Perlmutter model with a $Λ$-term and the best-fit brane models becomes detectable for redshifts $z > 1.2$. It is interesting that brane models predict brighter galaxies for such redshifts which is in agreement with the measurement of the $z = 1.7$ supernova. We also demonstrate that the fit to supernovae data can also be obtained, if we admit the "super-negative" dark energy (phantom matter) $p= - (4/3) \varrho$ on the brane, where the dark energy in a way mimics the influence of the cosmological constant. It also appears that the dark energy enlarges the age of the universe which is demanded in cosmology. Finally, we propose to check for dark radiation and brane tension by the application of the angular diameter of galaxies minimum value test. We point out the existence of coincidence problem for the brane tension parameter.
description: 15 pages 7 figures
title: Ρομποτική και Εκπαιδευτική Τεχνολογία: Κατασκευή πυροσβεστικού αυτόματου κινούμενου μηχανισμού με πλήρη περιγραφή εκπαιδευτικού σεναρίου ανάθεσης έργου
title: Robotics and Educational Technology: Construction of an automatic fire-fighting mechanism with a complete description of an educational project assignment scenario
titleType: AlternativeTitle
Creators: name: Κορδαλής, Ιωάννης
Publisher: name: Πανεπιστήμιο Δυτικής Αττικής
Year: 2021
Subjects: Ρομποτική
Επεξεργαστής
Ομαδοσυνεργατική

description: Στη παρούσα πτυχιακή εργασία παρουσιάστηκαν πρωτίστως η συνδεσμολογία των αισθητήρων και η ανάπτυξη του κώδικα που χρησιμοποιήθηκε συγκεντρωτικά, φτάνοντας στην τελική παρουσίαση και επίδειξη της λειτουργίας του οχήματος μας. Αρχικά, παρουσιάστηκε η εικόνα της τάξης στην οποία πρόκειται να ανατεθεί το έργο. Αναφέρθηκε ο αριθμός των μαθητών, το μαθητικό τους προφίλ τους καθώς και το επίπεδο γνώσεων τους προκειμένου να υπάρχει μια ολοκληρωμένη άποψη του στόχου στον οποίο απευθύνεται το εκπαιδευτικό εγχείρημα. Κατόπιν αυτό αναφέρθηκε η παιδαγωγική μέθοδος που θα εφαρμοστεί για τη συγκεκριμένη διαδικασία , κάνοντας μία εκτενέστερη ανάλυση σε αυτή αναφέροντας επίσης και τα πλεονεκτήματα έναντι των άλλων μεθόδων. Ύστερα έγινε ο χωρισμός των μαθητών σε ομάδες έρευνας και υλοποίησης παρουσιάζοντας όμως και τα κριτήρια της οργάνωσης των ομάδων αυτών. Περιγράφηκε το θεωρητικό πλαίσιο που θα χρησιμοποιηθεί η τεχνολογία του arduinoκαι της γλώσσας wiring στη κατασκευή Ρομποτικής κατασκευής και αναφέρθηκε η επέμβαση του εκπαιδευτικού και εισαγωγή ανάγκης για ανάδειξη χρησιμότητας της συσκευής. Αυτό έγινε με τις μεθόδους του καταιγισμού ιδεών , της παρουσίασης ιδεών ανώνυμα και ψηφοφορία για την ανάδειξη της καλύτερης ιδέας και τέλος την ανάδειξη της καλύτερης ιδέας. Κατά την ανάπτυξη του έργου από τους μαθητές παρουσιάστηκαν οι αναθέσεις των μερών της κατασκευής σε ομάδες, η συλλογή υλικών κατασκευής, η κατασκευή κομματιών της , ο Καταμερισμός του κώδικα και των συναφών μερών οχήματος. Τέλος παρουσιάστηκαν τα προβλήματα που προέκυψαν κατά την εκτέλεση της εργασίας μας καθώς και οι ιδέες για μελλοντικές βελτιώσεις και επεκτάσεις της κατασκευής μας.
Large N reduction on a twisted torus
Creators: name: Gonzalez-Arroyo, A.
name: Narayanan, R.
name: Neuberger, H.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We consider SU(N) lattice gauge theory at infinite N defined on a torus with a CP invariant twist. Massless fermions are incorporated in an elegant way, while keeping them quenched. We present some numerical results which suggest that twisting can make numerical simulations of planar QCD more efficient.
description: 14 pages, 2 figures, 1 table
Antibiofilm activity of Actinobacillus pleuropneumoniae serotyoe 5 capsular polysaccharide
Creators: name: Karwacki, Michael T.
name: Kadouri, Daniel E.
name: Bendaoud, Meriem
name: Izano, Era A.
name: Sampathkumar, Vandana
name: Inzana, Thomas J.
name: Kaplan, Jeffrey B.
Publisher: name: PLOS
Year: 2023
Subjects: classificationCode: 31
subject: Biological sciences
subject: FOS: Biological sciences

description: Cell-free extracts isolated from colony biofilms of Actinobacillus pleuropneumoniae serotype 5 were found to inhibit biofilm formation by Staphylococcus aureus, S. epidermidis and Aggregatibacter actinomycetemcomitans, but not by A. pleuropneumoniae serotype 5 itself, in a 96-well microtiter plate assay. Physical and chemical analyses indicated that the antibiofilm activity in the extract was due to high-molecular-weight polysaccharide. Extracts isolated from a mutant strain deficient in the production of serotype 5 capsular polysaccharide did not exhibit antibiofilm activity. A plasmid harboring the serotype 5 capsule genes restored the antibiofilm activity in the mutant extract. Purified serotype 5 capsular polysaccharide also exhibited antibiofilm activity against S. aureus. A. pleuropneumoniae wild-type extracts did not inhibit S. aureus growth, but did inhibit S. aureus intercellular adhesion and binding of S. aureus cells to stainless steel surfaces. Furthermore, polystyrene surfaces coated with A. pleuropneumoniae wild-type extracts, but not with capsule-mutant extracts, resisted S. aureus biofilm formation. Our findings suggest that the A. pleuropneumoniae serotype 5 capsule inhibits cell-to-cell and cell-to-surface interactions of other bacteria. A. pleuropneumoniae serotype 5 capsular polysaccharide is one of a growing number of bacterial polysaccharides that exhibit broad-spectrum, nonbiocidal antibiofilm activity. Future studies on these antibiofilm polysaccharides may uncover novel functions for bacterial polysaccharides in nature, and may lead to the development of new classes of antibiofilm agents for industrial and clinical applications.
Possibilities of a QED-Based Vacuum Energy
Creators: name: Fried, H. M.
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: A QED-based bootstrap mechanism, appearing at sufficiently small space-time scales, is suggested as an explanation for the "dark" vacuum energy that may be able to accelerate the universe. Very small-scale vacuum currents are allowed to generate small-scale electromagnetic fields, which become significant near the light cone. The resulting lepton-pair production, some of which may be tachyonic, has ramifications for the convergence of all QED perturbative processes, as well as providing possible mechanisms for "dark" matter, galactic gamma-ray bursts, and ultra-high-energy cosmic rays.
description: 20 pages, 1 table
Prospects for a Multi-TeV Gamma-ray Sky Survey with the LHAASO Water Cherenkov Detector Array
Creators: name: Guo, Yingying
name: Chang, Xiaochuan
name: Hu, Hongbo
name: Yao, Zhiguo
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The Water Cherenkov Detector Array (WCDA) is a major component of the Large High Altitude Air Shower Array Observatory (LHAASO), a new generation cosmic-ray experiment with unprecedented sensitivity, currently under construction. The WCDA is aimed at the study of TeV $γ$-rays. In order to evaluate the prospects of searching for TeV $γ$-ray sources with the WCDA, we present in this paper a projection for the one-year sensitivity of the WCDA to TeV $γ$-ray sources from TeVCat (footnote: http://tevcat.uchicago.edu) using an all-sky approach. Out of 128 TeVCat sources observable to the WCDA up to a zenith angle of $45^\circ$, we estimate that 42 would be detectable for one year of observations at a median energy of 1 TeV. Most of them are Galactic sources, and the extragalactic sources are Active Galactic Nuclei (AGN).
description: 10 pages,10 figures, it is to be published in Chinese Physics C
Integrated Weed Management Systems: An Appropriate Technology for Sustainable Agriculture in the Caribbean
Creators: name: Bridgemohan, Puran
name: Daisley, Lennox E.A.
name: Bridgemohan, Puran
name: Daisley, Lennox E.A.
Publisher: name: Unknown
Year: 1992
Subjects: Agricultural and Food Policy
Environmental Economics and Policy
International Development

description: Weeds are serious pest in crop production in the Caribbean accounting for a major portion of the capital and labour cost. Control has been characterized by heavy inputs and mis-use of herbicides in a fragile ecosystem. This paper attempts to examine the use of Integrated Weed Management (IWM) as an agroecosystem approach for the management and control of three noxious weeds - corn grass (Rottboella cochinchinensis), white-top (Parthenium hysterophous), and nut grass (Cyperus rotundas), as an appropriate control strategy within the context of sustainable agriculture in the Caribbean.
The three-loop QED contributions to the $g-2$ of charged leptons with two internal fermion loops and a class of Kampé de Fériet series
Creators: name: Ananthanarayan, B.
name: Friot, Samuel
name: Ghosh, Shayan
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The three-loop QED mass-dependent contributions to the $g-2$ of each of the charged leptons with two internal closed fermion loops, sometimes called $A^{(6)}_3\left(\frac{m_1}{m_2}, \frac{m_1}{m_3}\right)$ in the $g-2$ literature, is revisited using the Mellin-Barnes (MB) representation technique. Results for the muon and $τ$ lepton anomalous magnetic moments $A^{(6)}_{3,μ}$ and $A^{(6)}_{3,τ}$, which were known as series expansions in the lepton mass ratios up to the first few terms only, are extended to their exact expressions. The contribution to the anomalous magnetic moment of the electron $A^{(6)}_{3,e}$ is also explicitly given in closed form. In addition to this, we show that the different series representations derived from the MB representation collectively converge for all possible values of the masses. Such unexpected behavior is related to the fact that these series bring into play double hypergeometric series that belong to a class of Kampé de Fériet series which we prove to have the same simple convergence and analytic continuation properties as the Appell $F_1$ double hypergeometric series.
description: 31 pages, 7 figures, uncertainties in Eq.(20) and some other typos corrected