cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
ERICC Working Paper_ERICC Research Agenda for Nigeria
Creators: name: ERICC Consortium
name: Akogun, Oladele
name: Adesina, Adedoyin
name: Njobdi, Sani
name: Salmon-Letelier, Marlana
name: Diazgranados Ferrans, Silvia
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 390201
subject: Education policy
classificationCode: 390407
subject: Inclusive education

description: The Nigeria research agenda outlines the research direction based on the co-construction of evidence and sets out the co-creative principles for implementing the research agenda. The research themes that constitute the Nigeria research agenda were identified through consultations with key in-country stakeholders at the Federal level and in Borno, Adamawa, and Kaduna States.The stakeholders identified the priority research concerns around access, quality, continuity and coherence of education in conflict and crisis-affected contexts in Nigeria as the following, in sequence to be addressed: (1) policy, systems and sustainability; (2) teacher issues; (3) data; and (4) social and emotional learning. The stakeholder concerns were cross-checked with the literature for gaps in evidence. The research problems were then proposed as knowledge gaps where the concerns had not been addressed in the literature, where the research problems were the broad articulation of the stakeholder's concerns about an issue for which there is little or weak evidence in the literature that decision-makers can use for addressing it. The research problems in the research agenda will be further broken up into specific, policy-relevant research questions (and objectives) that will bridge current gaps in evidence for decision-making.The programme will leverage existing partnerships, build new ones and explore opportunities for funding evidence generation that the FCDO is unable to cover. Our primary method for evidence generation will continue to be a collaborative, co-constructive approach with participatory end-users. The end-users will participate in the research design, data collection, analysis, reflection, and evidence application for addressing the problems and gaps identified by the stakeholders.
Lyapunov Modes for a Nonequilibrium System with a Heat Flux
Creators: name: Taniguchi, Tooru
name: Morriss, Gary P.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: We present the first numerical observation of Lyapunov modes (mode structure of Lyapunov vectors) in a system maintained in a nonequilibrium steady state. The modes show some similarities and some differences when compared with the results for equilibrium systems. The breaking of energy conservation removes a zero exponent and introduces a new mode. The transverse modes are only weakly altered but there are systematic changes to the longitudinal and momentum dependent modes.
description: 9 pages, 7 figures
Polyethylene Identification in ocean water samples by means of 50 keV energy electron beam
Creators: name: Adlish, J. I.
name: Costa, D.
name: Mainardi, E.
name: Neuhold, P.
name: Surrente, R.
name: Tagliapietra, L. J.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: FOS: Physical sciences
subject: F.2.1
subject: 65C20

description: The study presented hereafter shows a new methodology to reveal traces of polyethylene (the most common microplastic particles, known as a structure of C_2 H_4) in a sample of ocean water by the irradiation of a 50 keV, 1 uA electron beam. This is performed by analyzing the photon (produced by the electrons in water ) fluxes and spectra (i.e. fluxes as a function of photon energy) at different types of contaminated water with an adequate device and in particular looking at the peculiar interactions of electrons/photons with the potential abnormal atomic hydrogen (H), oxygen (O), carbon (C), phosphorus (P) compositions present in the water, as a function of living and not living organic organisms with a PO4 group RNA/DNA strands in a cluster configuration through a volumetric cells grid.
description: 34 pages, 33 figures
ADOLAT KUYCHISI BERDAQ
Creators: name: Aliboyeva, Dilrabo
Publisher: name: Zenodo
Year: 2024

description: Maqolada adolatsevar shoir Berdaq hayoti va ijodi haqida so'z boradi. Maqolada shoir asarlarining poetik g'oyasi keng miqyosda tahlil qilinib, Berdaqning insoniylik, adolat va mardlik haqidagi she'rlari haqida so'z boradi.
Epiphragma (Epiphragma) circinatum Osten Sacken 1886
Creators: name: Armitage, Brian J.
name: Ríos González, Tomás A.
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Limoniidae
Epiphragma
Epiphragma circinatum

description: Epiphragma (Epiphragma) circinatum Osten Sacken, 1886
Original Genus: Epiphragma; Holotype: female; Type Locality: Costa Rica, Mt. Irazu; Description: Alexander 1934d; Wing Reference: none; Hypopygium Reference: none; Panamanian Provinces: Chiriquí; Regional Distribution: Costa Rica, Panama.
description: Published as part of Armitage, Brian J. & Ríos González, Tomás A., 2019, The Diptera of Panama. I. Annotated catalog of the Tipulomorpha of Panama, pp. 1-30 in Insecta Mundi 712 on page 18, DOI: 10.5281/zenodo.3727017
Dynamics of magnetic domain wall motion after nucleation: Dependence on the wall energy
Creators: name: Fukumoto, Keiki
name: Kuch, Wolfgang
name: Vogel, Jan
name: Romanens, Fabien
name: Pizzini, Stefania
name: Camarero, Julio
name: Bonfim, Marlio
name: Kirschner, Jürgen
Publisher: name: arXiv
Year: 2006
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: The dynamics of magnetic domain wall motion in the FeNi layer of a FeNi/Al2O3/Co trilayer has been investigated by a combination of x-ray magnetic circular dichroism, photoelectron emission microscopy, and a stroboscopic pump-probe technique. The nucleation of domains and subsequent expansion by domain wall motion in the FeNi layer during nanosecond-long magnetic field pulses was observed in the viscous regime up to the Walker limit field. We attribute an observed delay of domain expansion to the influence of the domain wall energy that acts against the domain expansion and that plays an important role when domains are small.
description: Accepted for publication in Physical Review Letters
Estimating the age-metallicity distribution of a stellar sample from the probability distributions of the individual stars
Creators: name: Sahlholdt, Christian L.
name: Lindegren, Lennart
Publisher: name: arXiv
Year: 2021
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Estimating age distributions, or star formation histories, of stellar populations in the Milky Way is important in order to study the evolution of trends in elemental abundances and kinematics. We build on previous work to develop an algorithm for estimating the age-metallicity distribution which uses the full age-metallicity probability density functions (PDFs) of individual stars. No assumptions are made about the shape of the underlying distribution, and the only free parameter of the algorithm is used to ensure a smooth solution. In this work we use individual age-metallicity PDFs from isochrone fitting of stars with known metallicities. The method is tested with synthetic samples and is found to recover the input age-metallicity distribution more accurately than the distribution of individually estimated ages and metallicities. The recovered sample age distribution is always more accurate than the distribution of individual ages, also when restricted to the most precise individual ages. By applying the method to the stars in the Geneva-Copenhagen survey, we detect a possible minimum in the star formation history of the Solar neighbourhood at an age of 10 Gyr which is not seen in the distribution of individual ages. Although we apply the method only to age-metallicity distributions, the algorithm is described more generally and can in principle be applied in other parameter spaces. It is also not restricted to individual parameter distributions from isochrone fitting, meaning that a sample age distribution can be estimated based on individual age PDFs from other methods such as asteroseismology or gyrochronology.
description: 20 pages, 16 figures. To be published in MNRAS. An implementation of the algorithm can be found at https://doi.org/10.5281/zenodo.3941733
Epiphragma (Epiphragma) amphileucum Alexander 1941
Creators: name: Armitage, Brian J.
name: Ríos González, Tomás A.
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Limoniidae
Epiphragma
Epiphragma amphileucum

description: Epiphragma (Epiphragma) amphileucum Alexander, 1941
Original Genus: Epiphragma; Holotype: male; Type Locality: Panama, Chiriqui Province, Potrerillos; Description: Alexander, 1941h; Wing Reference: none; Hypopygium Reference: none; Panamanian Provinces: Chiriquí; Regional Distribution: Panama.
description: Published as part of Armitage, Brian J. & Ríos González, Tomás A., 2019, The Diptera of Panama. I. Annotated catalog of the Tipulomorpha of Panama, pp. 1-30 in Insecta Mundi 712 on page 18, DOI: 10.5281/zenodo.3727017
Teucholabis (Teucholabis) subleridensis Alexander 1938
Creators: name: Armitage, Brian J.
name: Ríos González, Tomás A.
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Limoniidae
Teucholabis
Teucholabis subleridensis

description: Teucholabis (Teucholabis) subleridensis Alexander, 1938
Original Genus: Teucholabis; Holotype: male; Type Locality: Panama, Chiriqui Province, Finca Lerida; Description: Alexander, 1938r; Wing Reference: none; Hypopygium Reference: none; Panamanian Provinces: Chiriquí; Regional Distribution: Panama.
description: Published as part of Armitage, Brian J. & Ríos González, Tomás A., 2019, The Diptera of Panama. I. Annotated catalog of the Tipulomorpha of Panama, pp. 1-30 in Insecta Mundi 712 on page 18, DOI: 10.5281/zenodo.3727017
Probing the Large Scale Plasma Structure of the Solar Corona with Faraday Rotation Measurements
Creators: name: Ingleby, Laura D.
name: Spangler, Steven R.
name: Whiting, Catherine A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Faraday rotation measurements of the solar corona made with the Very Large Array (VLA) at frequencies of 1465 and 1665 MHz are reported. The measurements were made along 20 lines of sight to 19 extragalactic radio sources in March and April, 2005. The closest heliocentric distances of the lines of sight ranged from 9.7 to 5.6 $R_{\odot}$. Measured rotation measures range from -25 to +61 rad/m$^2$. The purpose of these observations is to probe the three dimensional structure of the coronal plasma in the heliocentric distance range $5-10 R_{\odot}$, and particularly the strength and structure of the coronal magnetic field. The measured rotation measures are compared with models for the coronal plasma structure. For the majority of the lines of sight, the observed rotation measures are reasonably well represented by the predictions from the models. However, 4 of the 20 lines of sight have large observed-model residuals, which do not seem associated with coronal mass ejections. The magnitude of the field necessary to reproduce the majority of the observations is in the range 46-120 milliGauss at $5 R_{\odot}$, with a smaller, preferred range of 46-52 mG at $5 R_{\odot}$.
description: 32 pages, 7 figures
An equation of state for expanded metals
Creators: name: Schirmacher, W.
name: Pilgrim, W. -C.
name: Hensel, F.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We present a model equation of states for expanded metals, which contains a pressure term due to a screened-Coulomb potential with a screening parameter reflecting the Mott-Anderson metal-to-nonmetal transition. As anticipated almost 80 years ago by Zel'dovich and Landau, this term gives rise to a second coexistence line in the phase diagram, indicating a phase separation between a metallic and a nonmetallic liquid.
description: 6 pages, 3 figures
Teucholabis (Teucholabis) subclara Alexander 1971
Creators: name: Armitage, Brian J.
name: Ríos González, Tomás A.
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Limoniidae
Teucholabis
Teucholabis subclara

description: Teucholabis (Teucholabis) subclara Alexander, 1971
Original Genus: Teucholabis; Holotype: male; Type Locality: Panama, Chiriqui Province, El Volcán; Description: Alexander, 1971i; Wing Reference: none; Hypopygium Reference: Alexander, 1971i; Panamanian Provinces: Chiriquí; Regional Distribution: Panama.
description: Published as part of Armitage, Brian J. & Ríos González, Tomás A., 2019, The Diptera of Panama. I. Annotated catalog of the Tipulomorpha of Panama, pp. 1-30 in Insecta Mundi 712 on page 18, DOI: 10.5281/zenodo.3727017
Οι Προσδιοριστικοί Παράγοντες των Άμεσων Ξένων Επενδύσεων στην Ισπανία την Περίοδο 1960-1990
Creators: name: Γκαρτζονίκας, Αλέξανδρος Παναγιώτη
Publisher: name: Aristotle University of Thessaloniki
Year: 2012
Subjects: Αμεσες Ξένες Επενδύσεις
Ισπανία
Συνολοκλήρωση
FDI
Spain
Cointegration

description: Η παρούσα μεταπτυχιακή διπλωματική εργασία, διαπραγματεύεται τους βασικούς προσδιοριστικούς παράγοντες προσέλκυσης των άμεσων ξένων επενδύσεων (Α.Ξ.Ε.) στην Ισπανία, για την περίοδο 1960-1990. Οι δύο βασικοί προσδιοριστικοί παράγοντες που ελέγχονται ως προς την ισχύ τους στην οικονομετρική μελέτη της εργασίας αυτής, είναι η λεγόμενη ‘Υπόθεση του Μεγέθους της Αγοράς’ (Market Size Hypothesis) και η υπόθεση του χαμηλού σχετικού εργατικού κόστους (μεταξύ της χώρας προορισμού και της χώρας προέλευσης της επένδυσης). Αφού προηγηθεί μια θεωρητική ανάλυση τόσο των Α.Ξ.Ε. όσο και της πορείας και των χαρακτηριστικών αυτών στην Ισπανία για την περίοδο 1960-1990, πραγματοποιείται ο έλεγχος της ύπαρξης συνοκλήρωσης στο οικονομετρικό σκέλος της εργασίας. Πιο συγκεκριμένα, αρχικά γίνεται έλεγχος ύπαρξης μοναδιαίας ρίζας στις χρονολογικές σειρές που χρησιμοποιούνται. Στη συνέχεια, πραγματοποιείται ο έλεγχος συνολοκλήρωσης Autoregressive Distributed Lag (ARDL) οπότε προσδιορίζεται και η ύπαρξη μακροχρόνιας αιτιώδους σχέσης από τις προσδιοριστικές μεταβλητές των δύο υποθέσεων προς τις εισροές των Α.Ξ.Ε. στην Ισπανία. Τέλος διαμορφώνεται το υπόδειγμα διόρθωσης σφάλματος (Error Correction Model) για τον προσδιορισμό της ύπαρξης πιθανής βραχυχρόνιας επίδρασης των δύο αυτών προσδιοριστικών παραγόντων προς τις Α.Ξ.Ε.. Συμπερασματικά, διαπιστώνεται ότι μακροχρόνια και οι δύο προσδιοριστικοί παράγοντες συμβάλλουν στην προσέλκυση των Α.Ξ.Ε., ενώ βραχυχρόνια διαπιστώνεται επίδραση μόνο από την υπόθεση του μεγέθους της αγοράς.
description: This master thesis discusses the key determinants factors of attracting foreign direct investment (FDI) in Spain, among 1960 and 1990. The two determinants factors that are checked for their validity in the econometric study of this thesis are the so-called ‘Market Size Hypothesis’ and the hypothesis of relatively low labor cost (between the host and home country of the investment). After a theoretical analysis of FDI and their main characteristics for Spain, we proceed with the test of existence of cointegration among the selected variables. More specifically, we begin by checking the order of integration of the variables that are used. Then we use the Autoregressive Distributed Lag (ARDL) estimation to certify the existence of long-term casual relation among the two determinant factors and the inflows of FDI in Spain. Finally we form the Error Correction Model for the selected ARDL model to check the existence of short-run effects among the variables. In the empirical results, we verify the long-term casual relationship from market size and labor cost to FDI inflows is Spain. Regarding the short-term effects, we only verify the validity of the market size hypothsesis.
Coherent Lattice Vibrations in Carbon Nanotubes
Creators: name: Lim, Y. S.
name: Yee, K. J.
name: Kim, J. H.
name: Shaver, J.
name: Haroz, E. H.
name: Kono, J.
name: Doorn, S. K.
name: Hauge, R. H.
name: Smalley, R. E.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We have generated and detected the radial-breathing mode of coherent lattice vibrations in single-walled carbon nanotubes using ultrashort laser pulses. Because the band gap is a function of diameter, these diameter oscillations cause ultrafast band gap oscillations, modulating interband excitonic resonances at the phonon frequencies (3-9 THz). Excitation spectra show a large number of pronounced peaks, mapping out chirality distributions in great detail.
description: 4 pages, 4 figures
title: Πηγές θορύβου οριζόντιων και κάθετων ανεμογεννητριών και τοποθέτηση σε αστικό περιβάλλον
Creators: name: Παραδεισης Στυλιανος
Publisher: name: Technical University of Crete
Year: 2024

description: Η ανάπτυξη και η ανάδειξη ενός πολιτισμού, είναι άμεσα συνδεδεμένες με την
αυξημένη κατά κεφαλήν ενεργειακή κατανάλωση. Θεωρείται πως η ενέργεια
είναι ζωτικής σημασίας για την κοινωνικοοικονομική ανάπτυξη και βελτίωση της
ποιότητας ζωής και όπως χαρακτηριστικά αναφέρει ο Οργανισμός Ηνωμένων
Εθνών η ενέργεια είναι το επίκεντρο σε σχεδόν κάθε μεγάλη πρόκληση και
ευκαιρία που αντιμετωπίζει ο κόσμος σήμερα. Η ενέργεια, από την παραγωγή
και διαχείριση ενεργειακών πόρων μέχρι και την κατανάλωση, είναι συστατικό
απαραίτητο για κάθε λογής οικονομική δραστηριότητα. Δυστυχώς όμως, η
παραγωγή ενέργειας τα περασμένα χρόνια ήταν συνυφασμένη με την ρύπανση
του περιβάλλοντος, γεγονός που σε συνδυασμό με την εξάντληση των ορυκτών
πόρων, καθιστούν σήμερα τον πλανήτη μας σε κατάσταση ανάγκης για
παραγωγή βιώσιμης και ανεξάντλητης ενέργειας. Εάν στα παραπάνω
συνυπολογιστεί και η όλο και αυξανόμενη ζήτηση για ενέργεια παγκοσμίως,
γίνεται αντιληπτό πως αποτελεί μονόδρομο, η επιστημονική κοινότητα να λάβει
δραστικά μέτρα.
Έτσι, ο 21ος αιώνας πλην άλλων σηματοδοτεί την εποχή της ενεργειακής
μετάβασης και στο πλαίσιο αυτό, οι ανανεώσιμες πηγές ενέργειας
αναδεικνύονται ως ένας από τους πιο ελπιδοφόρους τομείς για την εξασφάλιση
της βιώσιμης ενεργειακής παραγωγής και τη μείωση του έντονου
περιβαλλοντικού αποτυπώματος. Στην εποχή της ενεργειακής μετάβασης,
λοιπόν, οι ανανεώσιμες πηγές ενέργειας αναδεικνύονται ως πρωταγωνιστές
στην εν λόγω προσπάθεια για την αειφόρο ενεργειακή παραγωγή και με τη
σειρά της η επιστημονική κοινότητα προωθεί την έρευνα και την ανάπτυξη
τεχνολογιών για την αξιοποίηση αυτών. Αναμφίβολα, η δραστική μετάβαση
προς αυτές τις τεχνολογίες για να διασφαλιστεί ένα βιώσιμο μέλλον για τον
πλανήτη μας είναι αναγκαία. Όσον αφορά την βασική τεχνολογία
εκμετάλλευσης της αιολικής ενέργειας, τις ανεμογεννήτριες, που αποτελούν
σημαντικό τμήμα των Α.Π.Ε., παρουσιάζουν ακόμη έντονα περιθώρια
βελτίωσης που παραμένουν αναξιοποίητα. Η παρούσα εργασία μελετά έναν
σημαντικό παράγοντα χάρη στον οποίο η εν λόγω τεχνολογία παραμένει
αναξιοποίητη, που είναι ο θόρυβος που προκαλείται κατά την λειτουργία των
ανεμογεννητριών. Ο θόρυβος, είναι γεγονός πως αποτελεί βασική αιτία
αποθάρρυνσης εγκατάστασης Α/Γ σε αστικά περιβάλλοντα, παρ’ ότι τα οφέλη
που θα είχε μία τέτοια εγκατάσταση ποικίλουν. Στο πλαίσιο αυτό λοιπόν, η
παρούσα εργασία μελετά τις πηγές θορύβου οριζόντιων και κάθετων
ανεμογεννητριών και την εγκατάσταση αυτών σε αστικά περιβάλλοντα.
Teucholabis (Teucholabis) seposita Alexander 1941
Creators: name: Armitage, Brian J.
name: Ríos González, Tomás A.
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Limoniidae
Teucholabis
Teucholabis seposita

description: Teucholabis (Teucholabis) seposita Alexander, 1941
Original Genus: Teucholabis; Holotype: male; Type Locality: Panama, Chiriqui Province, Potrerillos; Description: Alexander, 1941q; Wing Reference: none; Hypopygium Reference: none; Panamanian Provinces: Chiriquí; Regional Distribution: Panama.
description: Published as part of Armitage, Brian J. & Ríos González, Tomás A., 2019, The Diptera of Panama. I. Annotated catalog of the Tipulomorpha of Panama, pp. 1-30 in Insecta Mundi 712 on page 18, DOI: 10.5281/zenodo.3727017
MHD stability of JT-60SA operation scenarios driven by passing energetic particles for a hot Maxwellian model
Creators: name: Varela, J.
name: Watanabe, K. Y.
name: Shinohara, K.
name: Honda, M.
name: Suzuki, Y.
name: Shiraishi, J.
name: Spong, D. A.
name: Garcia, L.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: We analyze the effects of the passing energetic particles on the resistive ballooning modes (RBM) and the energetic particle driven modes in JT-60SA plasma, which leads to the prediction of the stability in N-NBI heated plasma. The analysis is performed using the code FAR3d that solves the reduced MHD equations describing the linear evolution of the poloidal flux and the toroidal component of the vorticity in a full 3D system, coupled with equations of density and parallel velocity moments for the energetic particle (EP) species assuming an averaged Maxwellian EP distribution fitted to the slowing down distribution, including the effect of the acoustic modes. The simulations show the possible destabilization of a 3/2-4/2 TAE with a frequency (f) of 115 kHz, a 6/4-7/4 TAE with f=98 kHz and a 6/4 or 7/4 BAE with f=57 kHz in the ITER-like inductive scenario. If the energetic particle beta increases, Beta induced AEs (BAE), Toroidal AEs (TAE) and Elliptical AEs (EAE) are destabilized between the inner-middle plasma region, leading to the overlapping of AE of different toroidal families. If these instabilities coexist in the non-linear saturation phase the EP transport could be enhanced leading to a lower heating efficiency. For a hypothetical configuration based on the ITER-like inductive scenario but an center peaked EP profile, the EP beta threshold increases and several BAEs are destabilized in the inner plasma region, indicating an improved AE stability with respect to the off-axis peaked EP profile. In addition, the analysis of a hypothetical JT-60SA scenario with a resonant q=1 in the inner plasma region shows the destabilization of fishbones-like instabilities by the off-axis peaked EP profile. Also, the EPs have an stabilizing effect on the RBM, stronger as the population of EP with low energies (below 250 keV) increases at the plasma pedestal.
Teucholabis (Teucholabis) rostrata Enderlein 1912
Creators: name: Armitage, Brian J.
name: Ríos González, Tomás A.
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Limoniidae
Teucholabis
Teucholabis rostrata

description: Teucholabis (Teucholabis) rostrata Enderlein, 1912
Original Genus: Teucholabis; Holotype: male; Type Locality: Costa Rica; Description: Enderlein, 1912a; Wing Reference: Enderlein, 1912a; Hypopygium Reference: none; Panamanian Provinces: undetermined; Regional Distribution: Costa Rica, Panama.
description: Published as part of Armitage, Brian J. & Ríos González, Tomás A., 2019, The Diptera of Panama. I. Annotated catalog of the Tipulomorpha of Panama, pp. 1-30 in Insecta Mundi 712 on page 18, DOI: 10.5281/zenodo.3727017
Teucholabis (Teucholabis) patens Alexander 1939
Creators: name: Armitage, Brian J.
name: Ríos González, Tomás A.
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Limoniidae
Teucholabis
Teucholabis patens

description: Teucholabis (Teucholabis) patens Alexander, 1939
Original Genus: Teucholabis; Holotype: male; Type Locality: Mexico, Chiapas, Vergel; Description: Alexander, 1939d; Wing Reference: none; Hypopygium Reference: none; Panamanian Provinces: undetermined; Regional Distribution: Mexico, Panama.
description: Published as part of Armitage, Brian J. & Ríos González, Tomás A., 2019, The Diptera of Panama. I. Annotated catalog of the Tipulomorpha of Panama, pp. 1-30 in Insecta Mundi 712 on page 18, DOI: 10.5281/zenodo.3727017
Essential Spectrum of Multiparticle Brown-Ravenhall Operators in External Field
Creators: name: Morozov, Sergey
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 81Q10 (Primary), 81V55 (Secondary)

description: The essential spectrum of multiparticle Brown-Ravenhall operators is characterized in terms of two--cluster decompositions for a wide class of external fields and interparticle interactions and for the systems with prescribed symmetries.
description: 29 pages, submitted to Documenta Mathematica
Initial stage of the 2D-3D transition of a strained SiGe layer on a pit-patterned Si(001) template
Creators: name: Chen, Gang
name: Lichtenberger, Herbert
name: Bauer, Guenther
name: Jantsch, Wolfgang
name: Schaffler, Friedrich
Publisher: name: arXiv
Year: 2006
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We investigate the initial stage of the 2D-3D transition of strained Ge layers deposited on pit-patterned Si(001) templates. Within the pits, which assume the shape of inverted, truncated pyramids after optimized growth of a Si buffer layer, the Ge wetting layer develops a complex morphology consisting exclusively of {105} and (001) facets. These results are attributed to a strain-driven step-meandering instability on the facetted side-walls of the pits, and a step-bunching instability at the sharp concave intersections of these facets. Although both instabilities are strain-driven, their coexistence becomes mainly possible by the geometrical restrictions in the pits. It is shown that the morphological transformation of the pit surface into low-energy facets has strong influence on the preferential nucleation of Ge islands at the flat bottom of the pits.
description: 19 pages, 7 figures
Non-finite-difference algorithm for integrating Newton's motion equations
Creators: name: Brzostowski, B.
name: Dudek, M. R.
name: Grabiec, B.
name: Nadzieja, T.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: We have presented some practical consequences on the molecular-dynamics simulations arising from the numerical algorithm published recently in paper Int. J. Mod. Phys. C 16, 413 (2005). The algorithm is not a finite-difference method and therefore it could be complementary to the traditional numerical integrating of the motion equations. It consists of two steps. First, an analytic form of polynomials in some formal parameter $λ$ (we put $λ=1$ after all) is derived, which approximate the solution of the system of differential equations under consideration. Next, the numerical values of the derived polynomials in the interval, in which the difference between them and their truncated part of smaller degree does not exceed a given accuracy $ε$, become the numerical solution. The particular examples, which we have considered, represent the forced linear and nonlinear oscillator and the 2D Lennard-Jones fluid. In the latter case we have restricted to the polynomials of the first degree in formal parameter $λ$. The computer simulations play very important role in modeling materials with unusual properties being contradictictory to our intuition. The particular example could be the auxetic materials. In this case, the accuracy of the applied numerical algorithms as well as various side-effects, which might change the physical reality, could become important for the properties of the simulated material.
description: 11 pages
A class of solutions of the two-dimensional Toda lattice equation
Creators: name: Duarte, Vinicius
Publisher: name: arXiv
Year: 2020
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: Mathematical Physics (math-ph)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: A method is proposed to systematically generate solutions of the two-dimensional Toda lattice equation in terms of previously known solutions $ϕ\left(x,y\right)$ of the two-dimensional Laplace's equation. The two-dimensional solution of Nakamura's [J. Phys. Soc. Jpn. \textbf{52}, 380 (1983)] is shown to correspond to one particular choice of $ϕ\left(x,y\right)$.
Finite-size Effects in a Two-Dimensional Electron Gas with Rashba Spin-Orbit Interaction
Creators: name: Moca, C. P.
name: Marinescu, D. C.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Within the Kubo formalism, we estimate the spin-Hall conductivity in a two-dimensional electron gas with Rashba spin-orbit interaction and study its variation as a function of disorder strength and system size. The numerical algorithm employed in the calculation is based on the direct numerical integration of the time-dependent Schrodinger equation in a spin-dependent variant of the particle source method. We find that the spin-precession length, L_s controlled by the strength of the Rashba coupling, establishes the critical lengthscale that marks the significant reduction of the spin-Hall conductivity in bulk systems. In contrast, the electron mean free path, inversely proportional to the strength of disorder, appears to have only a minor effect.
description: 5 pages, 3 figures
Black holes and the supermassive compact object at the Galactic center: multi-arts of thought and nature
Creators: name: Yu, Qingjuan
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: This is an invited commentary on the Nobel Prize in Physics 2020 which was awarded to Roger Penrose "for the discovery that black hole formation is a robust prediction of the general theory of relativity," and Reinhard Genzel and Andrea Ghez "for the discovery of a supermassive compact object at the center of our galaxy."
description: 5 pages, 1 figure. Published in The Innovation
Teucholabis (Teucholabis) noctula Alexander 1971
Creators: name: Armitage, Brian J.
name: Ríos González, Tomás A.
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Limoniidae
Teucholabis
Teucholabis noctula

description: Teucholabis (Teucholabis) noctula Alexander, 1971
Original Genus: Teucholabis; Holotype: male; Type Locality: Panama, Panama Province, New Taboga Village; Description: Alexander, 1971i; Wing Reference: none; Hypopygium Reference: Alexander, 1971i; Panamanian Provinces: Panama; Regional Distribution: Panama.
description: Published as part of Armitage, Brian J. & Ríos González, Tomás A., 2019, The Diptera of Panama. I. Annotated catalog of the Tipulomorpha of Panama, pp. 1-30 in Insecta Mundi 712 on page 18, DOI: 10.5281/zenodo.3727017
Completely analytical families of anisotropic gamma-models
Creators: name: Buyle, Pieter
name: Hunter, Chris
name: Dejonghe, Herwig
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present new analytical distribution functions for anisotropic spherical galaxies. They have the density profiles of the gamma-models, which allow a wide range of central density slopes, and are widely used to fit elliptical galaxies and the bulges of spiral galaxies. Most of our models belong to two two-parameter families. One of these parameters is the slope gamma of the central density cusp. The other allows a wide range of varying radial and tangential anisotropies, at either small or large radii. We give analytical formulas for their distribution functions, velocity dispersions, and the manner in which energy and transverse velocity are distributed between orbits. We also give some of their observable properties, including line-of-sight velocity profiles which have been computed numerically. Our models can be used to provide a useful tool for creating initial conditions for N-body and Monte Carlo simulations.
description: 21 pages, 15 figures, accepted for publication in MNRAS
How to observe a coherent superposition of an atom and a molecule
Creators: name: Dowling, Mark R.
name: Bartlett, Stephen D.
name: Rudolph, Terry
name: Spekkens, Robert W.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Physics (quant-ph)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We demonstrate that it is possible, in principle, to perform a Ramsey-type interference experiment to exhibit a coherent superposition of a single atom and a diatomic molecule. This gedanken experiment, based on the techniques of Aharonov and Susskind [Phys. Rev. 155, 1428 (1967)], explicitly violates the commonly-accepted superselection rule that forbids coherent superpositions of eigenstates of differing atom number. This interference experiment makes use of a Bose-Einstein condensate as a reference frame with which to perform the coherent operations analogous to Ramsey pulses. We also investigate an analogous gedanken experiment to exhibit a coherent superposition of a single boson and a fermion, violating the commonly-accepted superselection rule forbidding coherent superpositions of states of differing particle statistics; in this case, the reference frame is realized by a multi-mode state of many fermions. This latter case reproduces all of the relevant features of Ramsey interferometry, including Ramsey fringes over many repetitions of the experiment. However, the apparent inability of this proposed experiment to produce well-defined relative phases between two distinct systems each described by a coherent superposition of a boson and a fermion demonstrates that there are additional, outstanding requirements to fully ``lift'' the univalence superselection rule.
description: 17 pages, 1 figure, comments welcome, published version (minor changes)
Equal- and unequal-mass mergers of disk and elliptical galaxies with black holes
Creators: name: Johansson, Peter H.
name: Naab, Thorsten
name: Burkert, Andreas
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present binary galaxy merger simulations with varying mass ratios and different progenitor morphologies. The simulations include mergers of gas-rich disks (Sp-Sp), of early-type galaxies and disks (E-Sp, mixed mergers), and mergers of early-type galaxies (E-E, dry mergers). We follow the dynamics of gas, stars and dark matter, and include radiative cooling, star formation and black hole (BH) accretion. For Sp-Sp mergers, the peak star formation rate and BH accretion rate decrease and the growth timescales of the central black holes and newly formed stars increase with higher progenitor mass ratios. The peak BH accretion rate typically occurs shortly after the time of BH merging for low progenitor mass ratios (e.g. 3:1 and lower), whereas for higher progenitor mass ratios there is no clear correlation between the peak BH accretion rate and BH merging time. The termination of star formation by BH feedback in disk mergers is significantly less important for higher progenitor mass ratios (e.g. 3:1 and higher). In addition, the inclusion of BH feedback suppresses efficiently star formation in dry E-E mergers and mixed E-Sp mergers. All merger remnants, independent of their progenitors, follow the observed relations between the central BH mass and the stellar velocity dispersion M_BH-sigma, the bulge mass M_BH-M_* and the bulge binding energy M_BH-M_{*}sigma^2, with the dominant source of scatter arising from variations in the initial gas mass fraction. The normalizations for all relations and the simulated slope of the M_BH-sigma and M_BH-M_{*}sigma^2 relations are in good agreement with the observations, whereas the simulated slope of the M_BH-M_* relation is slightly steeper compared to the observations. (abridged)
description: 22 pages, 15 figures, accepted to ApJ (minor revisions to match accepted version)
Teucholabis (Teucholabis) miniata Alexander 1930
Creators: name: Armitage, Brian J.
name: Ríos González, Tomás A.
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Limoniidae
Teucholabis
Teucholabis miniata

description: Teucholabis (Teucholabis) miniata Alexander, 1930
Original Genus: Teucholabis; Holotype: male; Type Locality: Panama, Bocas del Toro, Province, United Fruit Company; Description: Alexander, 1930n; Wing Reference: none; Hypopygium Reference: none; Panamanian Provinces: Bocas del Toro; Regional Distribution: Panama.
description: Published as part of Armitage, Brian J. & Ríos González, Tomás A., 2019, The Diptera of Panama. I. Annotated catalog of the Tipulomorpha of Panama, pp. 1-30 in Insecta Mundi 712 on page 17, DOI: 10.5281/zenodo.3727017
The Nature of Optical Features in the Inner Region of the 3C48 Host Galaxy
Creators: name: Stockton, Alan
name: Canalizo, Gabriela
name: Fu, Hai
name: Keel, William
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The well-known quasar 3C48 is the most powerful compact steep-spectrum radio-loud QSO at low redshifts. It also has two unusual optical features within the radius of the radio jet (~1"): (1) an anomalous, high-velocity narrow-line component, having several times as much flux as does the narrow-line component coinciding with the broad-line redshift; and (2) a bright continuum peak (3C48A) ~1" northeast of the quasar. Both of these optical features have been conjectured to be related to the radio jet. Here we explore these suggestions. We have obtained Gemini North GMOS integral-field-unit (IFU) spectroscopy of the central region around 3C48. We use the unique features of the IFU data to remove unresolved emission at the position of the quasar. The resolved emission at the wavelength of the high-velocity component is peaked
description: 10 pages, accepted by The Astrophysical Journal
Readout of GEM Detectors Using the Medipix2 CMOS Pixel Chip
Creators: name: Bamberger, A.
name: Desch, K.
name: Renz, U.
name: Titov, M.
name: Vlasov, N.
name: Wienemann, P.
name: Zwerger, A.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: We have operated a Medipix2 CMOS readout chip, with amplifying, shaping and charge discriminating front-end electronics integrated on the pixel-level, as a highly segmented direct charge collecting anode in a three-stage gas electron multiplier (Triple-GEM) to detect the ionization from $^{55}$Fe X-rays and electrons from $^{106}$Ru. The device allows to perform moderate energy spectroscopy measurements (20 % FWHM at 5.9 keV $X$-rays) using only digital readout and two discriminator thresholds. Being a truly 2D-detector, it allows to observe individual clusters of minimum ionizing charged particles in $Ar/CO_2$ (70:30) and $He/CO_2$ (70:30) mixtures and to achieve excellent spatial resolution for position reconstruction of primary clusters down to $\sim 50 μm$, based on the binary centroid determination method.
description: 18 pages, 14 pictures. submitted to Nuclear Instruments and Methods in Physics Research A
Guide to Set Up a University Open Source Program Office
Creators: name: Choudhury, Sayeed
name: OSPO++
Publisher: name: Zenodo
Year: 2023
Subjects: opensource
ospo
opensourceprogramoffice
university open source
academic open source

description: As open source software becomes more prevalent in academia; universities, and academic institutions are seeking to build and support open source capacity, including the creation of an open source programs office (OSPO). This guide is intended to provide recommendations and resources for individuals or institutions seeking to establish an OSPO in the university context.
Teucholabis (Teucholabis) leridensis Alexander 1934
Creators: name: Armitage, Brian J.
name: Ríos González, Tomás A.
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Limoniidae
Teucholabis
Teucholabis leridensis

description: Teucholabis (Teucholabis) leridensis Alexander, 1934
Original Genus: Teucholabis; Holotype: male; Type Locality: Panama, Chiriqui Province, Finca Lerida; Description: Alexander, 1934d; Wing Reference: none; Hypopygium Reference: none; Panamanian Provinces: Chiriquí; Regional Distribution: Panama.
description: Published as part of Armitage, Brian J. & Ríos González, Tomás A., 2019, The Diptera of Panama. I. Annotated catalog of the Tipulomorpha of Panama, pp. 1-30 in Insecta Mundi 712 on page 17, DOI: 10.5281/zenodo.3727017
Teucholabis (Teucholabis) gracilis Osten Sacken 1886
Creators: name: Armitage, Brian J.
name: Ríos González, Tomás A.
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Limoniidae
Teucholabis
Teucholabis gracilis

description: Teucholabis (Teucholabis) gracilis Osten Sacken, 1886
Original Genus: Teucholabis; Holotype: male; Type Locality: Mexico, Orizaba; Description: Osten Sacken, 1886; Wing Reference: none; Hypopygium Reference: Alexander, 1915a (as T. buscki); Panamanian Provinces: Colon; Regional Distribution: Panama.
description: Published as part of Armitage, Brian J. & Ríos González, Tomás A., 2019, The Diptera of Panama. I. Annotated catalog of the Tipulomorpha of Panama, pp. 1-30 in Insecta Mundi 712 on page 17, DOI: 10.5281/zenodo.3727017
LACO: A Latency-Driven Network Slicing Orchestration in Beyond-5G Networks
Creators: name: Zanzi, Lanfranco
name: Sciancalepore, Vincenzo
name: Garcia-Saavedra, Andres
name: Schotten, Hans D.
name: Costa-Perez, Xavier
Publisher: name: arXiv
Year: 2020
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: Machine Learning (cs.LG)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: Network Slicing is expected to become a game changer in the upcoming 5G networks and beyond, enlarging the telecom business ecosystem through still-unexplored vertical industry profits. This implies that heterogeneous service level agreements (SLAs) must be guaranteed per slice given the multitude of predefined requirements. In this paper, we pioneer a novel radio slicing orchestration solution that simultaneously provides-latency and throughput guarantees in a multi-tenancy environment. Leveraging on a solid mathematical framework, we exploit the exploration-vs-exploitation paradigm by means of a multi-armed-bandit-based(MAB) orchestrator, LACO, that makes adaptive resource slicing decisions with no prior knowledge on the traffic demand or channel quality statistics. As opposed to traditional MAB methods that are blind to the underlying system, LACO relies on system structure information to expedite decisions. After a preliminary simulations campaign empirically proving the validness of our solution, we provide a robust implementation of LACO using off-the-shelf equipment to fully emulate realistic network conditions:near-optimal results within affordable computational time are measured when LACO is in place.
Thermomechanical effects in uniformly aligned dye-doped nematic liquid crystals
Creators: name: Krimer, Dmitry O.
name: Residori, Stefania
Publisher: name: arXiv
Year: 2007
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We show theoretically that thermomechanical effects in dye-doped nematic liquid crystals when illuminated by laser beams, can become important and lead to molecular reorientation at intensities substantially lower than that needed for optical Fréedericksz transition. We propose a 1D model that assumes homogenous intensity distribution in the plane of the layer and is capable to describe such a thermally induced threshold lowering. We consider a particular geometry, with a linearly polarized light incident perpendicularly on a layer of homeotropically aligned dye-doped nematics.
Teucholabis (Teucholabis) diplaca Alexander 1945
Creators: name: Armitage, Brian J.
name: Ríos González, Tomás A.
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Limoniidae
Teucholabis
Teucholabis diplaca

description: Teucholabis (Teucholabis) diplaca Alexander, 1945
Original Genus: Teucholabis; Holotype: male; Type Locality: Panama, Panama Province, Canal Zone, Barro Colorado Island; Description: Alexander, 1945v; Wing Reference: none; Hypopygium Reference: none; Panamanian Provinces: Panama; Regional Distribution: Panama.
description: Published as part of Armitage, Brian J. & Ríos González, Tomás A., 2019, The Diptera of Panama. I. Annotated catalog of the Tipulomorpha of Panama, pp. 1-30 in Insecta Mundi 712 on page 17, DOI: 10.5281/zenodo.3727017
Προγράμματα παρέμβασης για την απώλεια Βάρους με φυσική δραστηριότητα ή διατροφικό έλεγχο σε άτομα με σύνδρομο Down:
Creators: name: Κουτουκλέρ, Βαϊα Παύλου
Publisher: name: Aristotle University of Thessaloniki
Year: 2012
Subjects: Σύνδρομο Dοwn
Απώλεια βάρους
Αερόβια άσκηση και Σύνδρομο Dοwn
Down Syndrome
Weight loss
Aerobic Exercise and Down Syndrome

description: Χαρακτηριστικό των ατόμων με νοητική καθυστέρηση είναι το αυξημένο σωματικό βάρος και ο χαμηλός βασικός μεταβολισμός σε σχέση με τον τυπικό πληθυσμό. Υπάρχουν συγκεχυμένες έρευνες ως προς το βασικό μεταβολισμό αλλά και την αποτελεσματικότατα των προγραμμάτων παρέμβασης με σκοπό την απώλεια σωματικού βάρους στα άτομα με νοητική καθυστέρηση. Με την παρούσα έρευνα διερευνάται η επίδραση διαφορετικών προγραμμάτων παρέμβασης στη σωματική κατάσταση των ατόμων σε DS (δηλ. μείωση του σωματικού βάρους, του λιπώδη ιστού και η αύξηση της άλιπης σωματικής μάζας). Συγκεκριμένα, εξετάζονται οι παραπάνω παράγοντες σε τρεις ομάδες παρέμβασης: την ομάδα διατροφής, την ομάδα αερόβιας άσκησης και την ομάδα ελέγχου. Το δείγμα αποτελούν 35 άρρενες, μη ιδρυματικοί, ηλικίας 18-35 ετών από την ευρύτερη περιοχή της Βόρειας Ελλάδας. Την ομάδα ελέγχου απαρτίζουν 13 άρρενες, οι οποίοι ασχολήθηκαν με άλλες δραστηριότητες όπως παζλ, διάβασμα και χειροτεχνίες. Τα αποτελέσματα έδειξαν βελτίωση του σωματικού βάρους, του ποσοστού του σωματικού λίπους και μικρή μείωση, η οποία ήταν αδιάφορη της άλιπης σωματικής μάζας. Εικάζεται ότι το εξατομικευμένο πρόγραμμα περιορισμένης διατροφής και αερόβιας άσκησης επιδρά σημαντικά στην βελτίωση της σωματικής μάζας, του λιπώδη ιστού και στη γενικότερη υγεία των ατόμων, όπως ακριβώς και στον τυπικό πληθυσμό.
description: Characteristic of persons with mental retardation is the increased weight and low basal metabolism compared to the typical population. There are confusing research on the metabolism of people with disabilities. The present study investigated the effect of different intervention programs in the physical condition of individuals with DS (ie, decrease in body weight, adipose tissue and increasing lean body mass). Specifically, consider the above factors into three groups of intervention: group diet, aerobic exercise group and control group. The sample is 35 male, non-institutionalized, aged 18-35 years by region of Northern Greece. Control group composed 13 males who were involved in other activities such as puzzles, reading and crafts. The results showed improvement in body weight, percentage of body fat and a slight decrease, which was indifferent in lean body mass. It is assumed that the individualized program restricted diet and aerobic exercise a major influence on improving the physical mass of adipose tissue and the overall health of people, just like the typical population.