cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Future directions for solar energy in a global context with particular emphasis on Saudi Arabia, the Middle East, and North Africa
Creators: name: Alamrani, Fatimah
Publisher: name: Visions for Sustainability
Year: 2023

description: Solar energy has emerged as a viable and sustainable replacement for conventional energy sources with significant environmental and financial advantages. Photovoltaic (PV) systems and concentrating solar power (CSP) technologies are used to harness the energy of sunlight and have been widely applied, leading to a sharp increase in solar installations across the globe. The use of solar energy has been propelled even further by decreasing solar panel prices, developments in energy storage, and encouraging regulations. This article analyzes future directions for solar energy in a global context, with a particular emphasis on the Kingdom of Saudi Arabia (KSA), and the Middle East and North Africa (MENA) region. It proposes a discussion of the challenges and opportunities relating to solar cell adoption in the KSA and MENA region, also in the light of the potential paradox of countries who are among the largest producers of fossil-fuels being in the forefront of the move to carbon-negative technologies.
description: Visions for Sustainability, NEW Visions online
Building a consistent Information System in the different nodes and defining standardisation strategies
Creators: name: , David
name: , Hollebecq
name: Neveu
Publisher: name: Zenodo
Year: 2019
Subjects: Plant phenotyping, Persistent identification, URI, variables names, FAIR, interoperability

description: Subjects of this presentation Object identification
 Objects: plants, plots, experiments, sensors, events, etc
 Identification: persistent, unambiguous, resolvable Variable naming and formalization
 Give (local or global) name to variables
 What (concept), How, Associated controlled contexts Data interoperability
 Formats, schemas, semantic
 Representation compatibility and consistency 
Dosimetry studies of small fields in homogeneous and inhomogeneous media for high energy photons
Creators: name: Haider, Jacob Abraham
Publisher: name: University of British Columbia
Year: 2009

description: Dose decreases rapidly for photon field sizes smaller than the range of the laterally scattered electrons. The reduction in dose leads to dose non-uniformity and the degree of dose non-uniformity depends on the shape of the tumor. The dose reduction due to lateral electronic nonequilibrium increases with increasing photon energy. Small tumors are best treated with lower energy photons. We modified the primary and scatter dose model to include the effect of lateral electronic nonequilibrium. The dose model was verified experimentally for various geometries and is in good agreement with the measurements. We developed a new cavity theory which includes secondary electron backscattering from the medium into the cavity. The proposed theory gives better agreement with experiments in aluminium, copper and lead for Co-60 ƴ-rays and 10 MV x-rays than do the Burlin and Kearsley cavity theories. A method for obtaining an ionization chamber correction factor for measuring dose in inhomogeneous media is also given. There is a significant dose reduction in lung as compared to normal density tissue for small fields. The dose reduction in lung increases with decreasing field size and increasing photon energy. Results of the measurements suggest that a tumor in tissue surrounding lung would have better dose uniformity if the direction of the photon beam is such that the tumor resides in the proximal side of the tumor-lung interface. Tumors in lung and surrounding the lung have better dose uniformity if treated with lower energy photons. Significant dose reduction was also observed near the air-tissue interface. The dose perturbation increases with increasing air-cavity thickness, decreasing field size and increasing photon energy. Results of the measurements again suggest that a tumor in tissue surrounding air-cavities, such as the bronchial tube, would have better dose uniformity if the direction of the photon beam is such that the tumor resides in the proximal side of the tumor-air interface. And again, lower energy photons provide better dose uniformity for tumors surrounding the air-cavity. The presence of bone in tissue causes only modest dose perturbation for photon energies between 2 MV and 20 MV x-rays.
The Heidelberg compact electron beam ion traps
Creators: name: Micke, P.
name: Kühn, S.
name: Buchauer, L.
name: Harries, J. R.
name: Bücking, T. M.
name: Blaum, K.
name: Cieluch, A.
name: Egl, A.
name: Hollain, D.
name: Kraemer, S.
name: Pfeifer, T.
name: Schmidt, P. O.
name: Schüssler, R. X.
name: Schweiger, Ch.
name: Stöhlker, T.
name: Sturm, S.
name: Wolf, R. N.
name: Bernitt, S.
name: López-Urrutia, J. R. Crespo
Publisher: name: arXiv
Year: 2020
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Accelerator Physics (physics.acc-ph)
subject: Instrumentation and Detectors (physics.ins-det)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: Electron beam ion traps (EBIT) are ideal tools for both production and study of highly charged ions (HCI). In order to reduce their construction, maintenance, and operation costs we have developed a novel, compact, room-temperature design, the Heidelberg Compact EBIT (HC-EBIT). Four already commissioned devices operate at the strongest fields (up to 0.86 T) reported for such EBITs using permanent magnets, run electron beam currents up to 80 mA and energies up to 10 keV. They demonstrate HCI production, trapping, and extraction of pulsed Ar$^{16+}$ bunches and continuous 100 pA ion beams of highly charged Xe up to charge state 29+, already with a 4 mA, 2 keV electron beam. Moreover, HC-EBITs offer large solid-angle ports and thus high photon count rates, e. g., in x-ray spectroscopy of dielectronic recombination in HCIs up to Fe$^{24+}$, achieving an electron-energy resolving power of $E/ΔE > 1500$ at 5 keV. Besides traditional on-axis electron guns, we have also implemented a novel off-axis gun for laser, synchrotron, and free-electron laser applications, offering clear optical access along the trap axis. We report on its first operation at a synchrotron radiation facility demonstrating resonant photoexcitation of highly charged oxygen.
description: 20 pages, 18 figures, 1 table
The effect of ambipolar resistivity on the formation of dense cores
Creators: name: Van Loo, S.
name: Falle, S. A. E. G.
name: Hartquist, T. W.
name: Barker, A. J.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We aim to understand the formation of dense cores by magnetosonic waves in regions where the thermal to magnetic pressure ratio is small. Because of the low-ionisation fraction in molecular clouds, neutral and charged particles are weakly coupled. Ambipolar diffusion then plays an important role in the formation process. A quiescent, uniform plasma is perturbed by a fast-mode wave. Using 2D numerical simulations, we follow the evolution of the fast-mode wave. The simulations are done with a multifluid, adaptive mesh refinement MHD code. Initial perturbations with wavelengths that are 2 orders of magnitude larger than the dissipation length are strongly affected by the ion-neutral drift. Only in situations where there are large variations in the magnetic field corresponding to a highly turbulent gas can fast-mode waves generate dense cores. This means that, in most cores, no substructure can be produced. However, Core D of TMC-1 is an exception to this case. Due to its atypically high ionisation fraction, waves with wavelengths up to 3 orders of magnitude greater than the dissipation length can be present. Such waves are only weakly affected by ambipolar diffusion and can produce dense substructure without large wave-amplitudes. Our results also explain the observed transition from Alfvenic turbulent motion at large scales to subsonic motions at the level of dense cores.
description: 7 pages; 7 figures; accepted by A&A
title: Building an Integrated Transport System in Northeast Asia: a Delphi Study
Creators: name: Zhou, Tianlan
Publisher: name: University of Plymouth
Year: 2011
Subjects: Transport Policy, Trade Activities, Transportation Corridor, Integration, Delphi, Northeast Asia

description: The file(s) associated with this record are no longer available. [JC][04.02.2013]
description: In the current international environment characterized by globalization and regionalization, the importance of the transport and logistics system integration which is the basis of regional economic cooperation has been highlighted. Northeast Asian Region which covers 5.7% of the total world’s area and has around 25.8% of the total world’s population has been one of the most active regions of economic and social development in recent two decades largely due to the emergence of China and Russia in the world market. However, different from the EU which provides an excellent example of economic and transport integration, the transport and logistics system in Northeast Asia still has massive room for improvement. The concept of transportation corridor construction has been adopted in the research and the five most important international transportation corridors in Northeast Asia have been fully examined in terms of current situation and major problems and issues. The major issues include inadequate and imbalanced transportation infrastructure, lack of funding as well as insufficient institutional mechanisms. Consequently, the policy and action plans in four sectors are formulated to improve the performance of the transport and logistics system in Northeast Asia. The current research was facilitated by experts mainly from the transport and logistics field in Northeast Asia, through the application of the Delphi Method. The consensus achieved will provide useful guidance for building a well integrated transport and logistics system in Northeast Asia. The political and economic stability of North Korea is a prerequisite for transport and logistics system construction in Northeast Asia. Furthermore, improving basic transport infrastructure, promoting logistics and transport facilities, building a logistics cooperation system and training logistics specialists are the four most important aspects for the development of the transport and logistics system in the region.
Non-perturbative flow equations from continuous unitary transformations
Creators: name: Kriel, J. N.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: The goal of this thesis is the development and implementation of a non-perturbative solution method for Wegner's flow equations. We show that a parameterization of the flowing Hamiltonian in terms of a scalar function allows the flow equation to be rewritten as a nonlinear partial differential equation. The implementation is non-perturbative in that the derivation of the PDE is based on an expansion controlled by the size of the system rather than the coupling constant. We apply this method to the Lipkin model and obtain very accurate results for the spectrum, expectation values and eigenstates for all values of the coupling and in the thermodynamic limit. New aspects of the phase structure, made apparent by this non-perturbative treatment, are also investigated. The Dicke model is treated using a two-step diagonalization procedure which illustrates how an effective Hamiltonian may be constructed and subsequently solved within this framework.
description: 81 Pages. 43 Figures. Masters thesis. Supervisors : Prof F.G. Scholtz, Prof H.B. Geyer; added and updated references
External Photoevaporation of Disks around Low Mass Young Stellar and Sub-Stellar Objects
Creators: name: Kim, J. Serena
name: Fang, Min
name: Clarke, Cathie
name: Facchini, Stefano
name: Pascucci, Ilaria
name: Apai, Daniel
name: Haworth, Thomas
Publisher: name: Zenodo
Year: 2021
Subjects: Young stars, Very low mass stars, Stellar systems, clusters, and associations

description: External UV environment of stellar nurseries plays a major role on evolution of protoplanetary disks around young stellar objects. Photoevaporating protoplanetary disks (proplyds) have been found mainly around O stars in strong radiation environments, most of which are found in the Orion Nebula Cluster. However our recent studies also found proplyds in immediate vicinity of B stars, which implies that intermediate UV radiation environment can also affect disk evolution of young stellar objects, and potentially planet formation in such disks. We present our recent studies of proplyds around low mass young stellar- and sub-stellar objects, some of which may be potentially forming free-floating planetary mass objects. We will present our findings of the proplyds in NGC 1977 and NGC 2024, and show some selected proplyds around low mass sub-stellar objects. We will discuss the implication and the role of external UV environment in star and planet formation.
A scalable system for microcalcification cluster automated detection in a distributed mammographic database
Creators: name: Delogu, P.
name: Fantacci, M. E.
name: Martinez, A. Preite
name: Retico, A.
name: Stefanini, A.
name: Tata, A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Medical Physics (physics.med-ph)
subject: FOS: Physical sciences

description: A computer-aided detection (CADe) system for microcalcification cluster identification in mammograms has been developed in the framework of the EU-founded MammoGrid project. The CADe software is mainly based on wavelet transforms and artificial neural networks. It is able to identify microcalcifications in different datasets of mammograms (i.e. acquired with different machines and settings, digitized with different pitch and bit depth or direct digital ones). The CADe can be remotely run from GRID-connected acquisition and annotation stations, supporting clinicians from geographically distant locations in the interpretation of mammographic data. We report and discuss the system performances on different datasets of mammograms and the status of the GRID-enabled CADe analysis.
description: 6 pages, 4 figures; Proceedings of the IEEE NNS and MIC Conference, October 23-29, 2005, Puerto Rico
ACHIEVING LONG-TERM SUSTAINABILITY IN SMALL BUSINESSES
Creators: name: Juraboev, Haliljon
Publisher: name: Zenodo
Year: 2024
Subjects: Small businesses, sustainability, long-term period, economy, new strategies, challenges

description: In today's fast-paced and ever-evolving global economy, small businesses play a vital role in driving innovation, employment, and economic growth. However, the path to success is often fraught with challenges, and sustainability remains a significant concern for these enterprises. Achieving long-term sustainability in small businesses is crucial for their survival, growth, and contribution to the overall well-being of the economy. This article will explore the concept of sustainability in small businesses, its importance, and the strategies that can be employed to achieve it.
A Primer on Motion Capture with Deep Learning: Principles, Pitfalls and Perspectives
Creators: name: Mathis, Alexander
name: Schneider, Steffen
name: Lauer, Jessy
name: Mathis, Mackenzie W.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: Neurons and Cognition (q-bio.NC)
subject: Quantitative Methods (q-bio.QM)
subject: FOS: Computer and information sciences
subject: FOS: Biological sciences

description: Extracting behavioral measurements non-invasively from video is stymied by the fact that it is a hard computational problem. Recent advances in deep learning have tremendously advanced predicting posture from videos directly, which quickly impacted neuroscience and biology more broadly. In this primer we review the budding field of motion capture with deep learning. In particular, we will discuss the principles of those novel algorithms, highlight their potential as well as pitfalls for experimentalists, and provide a glimpse into the future.
description: Review, 21 pages, 8 figures and 5 boxes
Higher spin fields from a worldline perspective
Creators: name: Bastianelli, Fiorenzo
name: Corradini, Olindo
name: Latini, Emanuele
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Higher spin fields in four dimensions, and more generally conformal fields in arbitrary dimensions, can be described by spinning particle models with a gauged SO(N) extended supergravity on the worldline. We consider here the one-loop quantization of these models by studying the corresponding partition function on the one-dimensional torus. After gauge fixing the supergravity multiplet, the partition function reduces to an integral over the corresponding moduli space which is computed using orthogonal polynomial techniques. We obtain a compact formula which gives the number of physical degrees of freedom for all N in all dimensions. As an aside we compute the physical degrees of freedom of the SO(4) = SU(2)xSU(2) model with only a SU(2) factor gauged, which has attracted some interest in the literature.
description: 21 pages
An optical-IR jet in 3C133
Creators: name: Floyd, David J. E.
name: Laing, Robert
name: Chiaberge, Marco
name: Perlman, Eric
name: Sparks, William
name: Macchetto, Duccio
name: Madrid, Juan
name: Axon, David
name: O'Dea, Christopher P.
name: Baum, Stefi
name: Quillen, Alice
name: Miley, George
name: Capetti, Alessandro
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report the discovery of a new optical-IR synchrotron jet in the radio galaxy 3C133 from our HST/NICMOS snapshot survey. The jet and eastern hotspot are well resolved, and visible at both optical and IR wavelengths. The IR jet follows the morphology of the inner part of the radio jet, with three distinct knots identified with features in the radio. The radio-IR SED's of the knots are examined, along with those of two more distant hotspots at the eastern extreme of the radio feature. The detected emission appears to be synchrotron, with peaks in the NIR for all except one case, which exhibits a power-law spectrum throughout.
description: ApJ accepted. 14 pages, 6 figures
Element abundances in the metal rich open cluster NGC6253
Creators: name: Sestito, P.
name: Randich, S.
name: Bragaglia, A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We have carried out a big FLAMES survey of 10 Galactic open clusters aiming at different goals. One of them is the determination of chemical abundances, in order to put constraints on the radial metallicity gradient in the disk and its evolution. One of the sample clusters is the very metal rich NGC 6253. We have obtained UVES high resolution spectra of seven candidate cluster members (from the turn off up to the red clump) with the goal of determining the chemical composition of NGC 6253 and to investigate its origin and role in the interpretation of the radial metallicity gradient in the disk. Equivalent width analysis and spectral synthesis were performed using MOOG and Kurucz model atmospheres. We derived abundances of Fe, alpha- and Fe-peak elements, the light element Na and the s-process element Ba. Excluding two likely non-members and the clump giant, whose metallicity from equivalent widths is overestimated, we find an average [Fe/H]=+0.36+/-0.07 (rms) for the cluster. For most of the other elements we derive solar abundance ratios.
description: accepted by A&A (02/01/2007), 21 pages, 11 ps figures
Δημιουργώντας ένα σχολικό πολιτισμό ειρήνης στο Δημοτικό σχολείο για παιδιά Ρομά: μία έρευνα δράσης υπό το πρίσμα της κριτικής Παιδαγωγικής της Ειρήνης
Creators: name: Αγάπογλου, Θεοδώρα Θεόδωρου
Publisher: name: Aristotle University of Thessaloniki
Year: 2014
Subjects: θετική ειρήνη
ενδυνάμωση
κριτική συνειδητοποίηση
positive peace
empowerment
critical consciousness

description: Η παρούσα μεταπτυχιακή εργασία εντάσσεται στη θεματική της Κριτικής Παιδαγωγικής της Ειρήνης και στοχεύει στην οικοδόμηση ενός σχολικού πολιτισμού ειρήνης, στο πλαίσιο του οποίου είναι δυνατό οι μαθητές/τριες Ρομά να ενδυναμωθούν, ώστε συμμετέχουν ενεργά και ισότιμα τόσο στην εκπαιδευτική διαδικασία, όσο και στη κοινωνική ζωή. Σε έναν τέτοιο σχολικό πολιτισμό ειρήνης, οι Ρομά μαθητές/τριες εξασκούνται καθημερινά στην αναγνώριση και των τριών μορφών βίας (άμεσης, δομικής και πολιτισμικής) μέσω της εξέτασης της κριτικής συνειδητοποίησης της πραγματικότητας που βιώνουν. Πρόκειται για μία χειραφετητική-απελευθερωτική έρευνα δράσης που πραγματοποιήθηκε σε δημοτικό σχολείο του νομού Θεσσαλονίκης, με συμμετέχοντες/ουσες παιδιά Ρομά ηλικίας 11-12 ετών, εκπαιδευτικούς του σχολείου, τους γονείς των παιδιών, καθώς και μία ομάδα κριτικών φίλων. Η έρευνα εστιάζει κυρίως στο πώς μπορούν να διαμορφωθούν οι παιδαγωγικές προθέσεις, τα περιεχόμενα μάθησης, η προσέγγιση της γνώσης, οι παιδαγωγικές πρακτικές, οι πρακτικές γραμματισμού, η σχέση της μητρικής τους γλώσσας με την κυρίαρχη του σχολείου, καθώς και οι σχέσεις των μη Ρομά ατόμων με τα Ρομά μέσα στο σχολείο για μία απελευθερωτική διδασκαλία.
description: This master thesis extracts it’s theoretical background from Critical Peace Pedagogy and aims to the building of a culture of peace in the school, so that Roma students will be empowered and able to take part equally both in the learning process and in the social school life, as well. In this culture of peace Roma students make efforts to distinguish any type of violence (direct, structural or cultural) through the examination of their everyday life that leads to critical consciousness. It is an emancipator action research that took place in a primary school in Thessaloniki. The participators of the research were Roma students, aged 11-12 years old, teachers of the school, the parents of the Roma children and a team of critical friends. The research focus on the pedagogical intentions, the learning contents, the approach of the knowledge, the literacy practices, the relation between the first language of the children and the dominant language of the school, as well as on the relations of the Roma and non Roma in the school.
Perceptions of Smartphone Users Acceptance and Adoption of Mobile Commerce (MC) The Case of Jordan
Creators: name: Nabot, Ahmad
name: Omar, Firas
name: Almousa, Mohammed
Publisher: name: arXiv
Year: 2021
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: This study investigates smartphone users perceptions of adopting and accepting Mobile Commerce (MC) based on users perceived adoption under the extended Technology Acceptance Model (TAM2) and Innovation Diffusion Theory (IDT) by providing research constructs for the domain of MC. Also, testing them with reliability and validity and demonstrating their distinctiveness with hypothesis testing. The results show that consumer intention to adopt MC on a smartphone was primarily influenced by Uncertainty Avoidance (UA), User Experience (UX), Perceived Ease Of Use (PEOU), Perceived Usefulness (PU) and Compatibility (CMP) as well as other constructs that positively determine attitude toward using a smartphone. For researchers, this study shows the benefits of adapting TAM constructs into MC acceptance on a smartphone. The perceptions of MC adoption on a smartphone in this study investigated based on a survey of specific people. For more reliability, a comprehensive study is needed to show the attitudes of people from different environments.
description: 11 pages
Η ανάπτυξη της διαπολιτισμικής δεξιότητας στο μάθημα της Αγγλικής ως ξένης γλώσσας στο 2ο Σχολείο Δεύτερης Ευκαιρίας Λάρισας
Creators: name: Μάνη, Αναστασία Δημητρίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2014
Subjects: Διαπολιτισμική δεξιότητα
Γλωσσοδιδακτική
Διαπολιτισμικότητα
Intercultural competence
Language teaching
Interculturalism

description: Κύριο αντικείμενο της παρούσας μελέτης συνιστά η ανάπτυξη της διαπολιτισμικής δεξιότητας, καθώς η ολοένα και συστηματικότερη εστίαση της διδακτικής μεθοδολογίας των ξένων γλωσσών σε αυτή, συμπεριλαμβανομένων των Αγγλικών, ωφελεί τη γλωσσική εκμάθηση. Έτσι, ο διαπολιτισμικός δίαυλος επικοινωνίας μεταξύ των γλωσσών-κουλτούρων προωθείται και ο εκπαιδευόμενος καθίσταται κοινωνικός παράγοντας. Το 2ο Σ.Δ.Ε. Λάρισας (το οποίο βρίσκεται και λειτουργεί στο σωφρονιστικό κατάστημα κράτησης Λάρισας) συνιστά την εκπαιδευτική δομή της διεξαγωγής της έρευνας. Πρόκειται για σχολείο εντασσόμενο στους τομείς της εκπαίδευσης ενηλίκων και της δια βίου μάθησης και ως τέτοιο οφείλει να προωθεί τη διαπολιτισμικότητα και μέσω συγκεκριμένων γνώσεων και δεξιοτήτων να επιτυγχάνεται η ανάπτυξη της διαπολιτισμικής δεξιότητας μέσω της διδασκαλίας του αγγλικού γραμματισμού.
description: The main object of this study is the development of intercultural competence, as its increasing focus of the methodology of foreign language teaching on it, including English, benefits language acquisition. Thus, the intercultural communication channel amongst languages-cultures is promoted and the trainee becomes a social agent. The 2nd Second Chance School of Larissa (which is located and operates within the correctional institution of Larissa) constitutes the educational framework of conducting the research. It is about a school that lies within the domains of adult education and lifelong learning and as such it ought to promote interculturalism and via specific knowledge and skills to achieve the development of intercultural competence through teaching the English literacy.
GaN/AlGaN 2DEGs in the quantum regime: Magneto-transport and photoluminescence to 60 tesla
Creators: name: Crooker, S. A.
name: Lee, M.
name: McDonald, R. D.
name: Doorn, J. L.
name: Zimmermann, I.
name: Lai, Y.
name: Winter, L. E.
name: Ren, Y.
name: Cho, Y. -J.
name: Ramshaw, B. J.
name: Xing, H. G.
name: Jena, D.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Using high magnetic fields up to 60 T, we report magneto-transport and photoluminescence (PL) studies of a two-dimensional electron gas (2DEG) in a GaN/AlGaN heterojunction grown by molecular-beam epitaxy. Transport measurements demonstrate that the quantum limit can be exceeded (Landau level filling factor $ν< 1$), and show evidence for the $ν=2/3$ fractional quantum Hall state. Simultaneous optical and transport measurements reveal synchronous quantum oscillations of both the PL intensity and longitudinal resistivity in the integer quantum Hall regime. PL spectra directly reveal the dispersion of occupied Landau levels in the 2DEG and therefore the electron mass. These results demonstrate the utility of high (pulsed) magnetic fields for detailed measurements of quantum phenomena in high-density 2DEGs.
description: 5 pages, 4 figures
Populations of super-soft X-ray sources in galaxies of different morphological types
Creators: name: Galiullin, I.
name: Gilfanov, M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We study populations of soft and super-soft X-ray sources in nearby galaxies of various morphological types with the special emphasis on characterizing populations of stable nuclear burning accreting WDs. Analysing the content of Chandra archive we assembled a sample of nearby galaxies suitable for studying populations of super-soft X-ray sources. Our sample includes 4 spiral galaxies, 2 lenticular galaxies and 3 ellipticals with stellar mass exceeding $10^{10}$ $M_\odot$ and X-ray sensitivity of the order of a ${\rm few}\times 10^{36}$ erg/s. We used combination of hardness ratio and median energy to pre-select X-ray sources with soft spectra, and temperature - X-ray luminosity diagram to identify super-soft X-ray sources - likely nuclear burning accreting white dwarfs. For spiral galaxies, there is a distinct and rare population of super-soft sources, largely detached from the rest of sources on the $kT_{bb}-L_X$ plane. The boundary between these sources and the much more numerous population of harder (but still soft) sources is consistent with the boundary of stable hydrogen burning on the white dwarf surface. Combined spectrum of soft sources located outside this boundary, shows clear emission lines of Mg and S, which equivalent width is similar to that in the combined spectrum of a large number of confirmed supernova remnants in M83. This confirms earlier suggestions that the vast majority of so called quasi-soft sources are supernova remnants. In early-type galaxies, populations of super-soft sources are about a factor of $\approx 8$ less abundant, in broad agreement with the population synthesis calculations. Specific frequencies of super-soft sources are: (2.08$\pm$0.46)$\times10^{-10}$ M$_{\odot}^{-1}$ in spiral galaxies and (2.47$\pm$1.34)$\times10^{-11}$ M$_{\odot}^{-1}$ in lenticular and elliptical galaxies, with the ratio of the latter to the former of $0.12\pm0.05$.
description: 23 pages, 8 figures. Accepted for publication in A&A
Πολιτικοί κρατούμενοι στην Ελλάδα της εποχής των άκρων Μια διαδικτυακή έκθεση/εκπαιδευτική ιστοσελίδα
Creators: name: Νεοφύτου, Ελίζα Γεωργίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2014
Subjects: πολιτικοί κρατούμενοι
ιστοσελίδα
μουσειοπαιδαγωγική
political prisoners
website
museum education

description: Η παρούσα διπλωματική εργασία συνίσταται στο νοηματικό και χωρικό σχεδιασμό μίας ιστοσελίδας με διπλή υπόσταση: μίας διαδικτυακής έκθεσης και ενός μουσειοπαιδαγωγικού προγράμματος για μαθητές Γ’ τάξης Λυκείου. Το θέμα της αποτελεί η ζωή, η καθημερινότητα, η υποκειμενικότητα, οι συλλογικότητες των πολιτικών κρατουμένων στην Ελλάδα του 20ου αιώνα, όπως και οι κοινωνικοπολιτικές συνθήκες εμφάνισης, εξέλιξης και επαναφοράς του φαινομένου αυτού. Τόσο η διαδικτυακή έκθεση, όσο και η μουσειοπαιδαγωγική δραστηριότητα αξιοποιούν κατά κύριο λόγο πρωτογενείς πηγές, λεκτικά και παραστατικά ιστορικά τεκμήρια από το Αρχείο Κυριάκου Τσακίρη των Αρχείων Σύγχρονης Κοινωνικής Ιστορίας και συμπληρωματικά εκθέματα από επιλεγμένους διαδικτυακούς κόμβους. Ο Κυριάκος Τσακίρης, o κομμουνιστής, o πολιτικός κρατούμενος και o αυτοδίδακτος ζωγράφος κατέχει τον πρωταγωνιστικό ρόλο. Μέσα από τη ζωή και τα έργα του -με θεωρητικό υπόβαθρο τις έννοιες τις μικροϊστορίας, της μνήμης, του τραύματος, της ιστορικής συνείδησης και της κοινωνικής δικαιοσύνης- η διαδικτυακή έκθεση/εκπαιδευτική ιστοσελίδα στοχεύει στην ενδυνάμωση της ατομικής και συλλογικής μνήμης, αναγνωρίζοντας τη συγκρουσιακή διάσταση της παραγωγής της ιστορίας. Το επιθυμητό αποτέλεσμα είναι να αντιμετωπίζεται η ιστορική γνώση ως κοινωνικό αγαθό και η παραγωγή της ως συλλογική μας ευθύνη.
description: This thesis consists of the conceptual and spatial design of a website with a dual dimension: an online exhibition and a museum education program for students in the third grade of lyceum. Its subject is the everyday life, the subjectivity, the collectivities of political prisoners in Greece in the 20th century, as well as the socio-political conditions for the emergence, the evolution and the recovery of this phenomenon. Both the online exhibition and the museum education activity utilize mainly primary sources, verbal and representational historical documents from the Kyriakos Tsakiris Archive of the Contemporary Social History Archives and additional exhibits from selected websites. Kyriakos Tsakiris, the communist, the political prisoner and the selftaught painter holds the leading role. Through his life and works -with the theoretical background of the concepts of microhistory, memory, trauma, historical consciousness and social justice- the online exhibition/educational website aims at strengthening the individual and collective memory, whilst recognizing the conflictual dimension of the production of history. The desired outcome is to treat the historical knowledge as a public good and its production as our collective responsibility.
description: Σε συνεργασία με το Παιδαγωγικό Τμήμα Δημοτικής Εκπαίδευσης (Πανεπιστήμιο Δυτικής Μακεδονίας)
Evidence for sulfur-bearing species on Callisto's leading hemisphere: Sourced from Jupiter's irregular satellites or Io?
Creators: name: Cartwright, Richard J.
name: Nordheim, Tom A.
name: Cruikshank, Dale P.
name: Hand, Kevin P.
name: Roser, Joseph E.
name: Grundy, William M.
name: Beddingfield, Chloe B.
name: Emery, Joshua P.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We investigated whether sulfur-bearing species are present on the icy Galilean moon Callisto by analyzing eight near-infrared reflectance spectra collected over a wide range of sub-observer longitudes. We measured the band areas and depths of a 4-micron feature in these spectra, which has been attributed to sulfur dioxide (SO2), as well as carbonates, in previously collected datasets of this moon. All eight spectra we collected display the 4-micron band. The four spectra collected over Callisto's leading hemisphere display significantly stronger 4-micron bands compared to the four trailing hemisphere spectra (> 3-sigma difference). We compared the central wavelength position and shape of Callisto's 4-micron band to laboratory spectra of various sulfur-bearing species and carbonates. Our comparison demonstrates that Callisto's 4-micron band has a spectral signature similar to thermally-altered sulfur, as well as a 4.025 micron feature attributed to disulfanide (HS2). Our analysis therefore supports the presence of S-bearing species on Callisto but is not consistent with the presence of SO2. The significantly stronger 4-micron band detected on Callisto's leading hemisphere could result from collisions with H2S-rich dust grains that originate on Jupiter's retrograde irregular satellites or implantation of magnetospheric S ions that originate from volcanic activity on Io. Alternatively, S-bearing species could be native to Callisto and are exposed by dust collisions and larger impacts that drive regolith overturn, primarily on its leading side.
การทดสอบความสามารถเครื่องต้นแบบระบบบำบัดไอระเหยเบนซีนและโทลูอีนโดยใช้ถ่านกัมมันต์จากเศษไม้จากสถานประกอบการประเภทผลิตภัณฑ์ไม้ในเขตบางซื่อ กรุงเทพมหานคร
Creators: name: สุรชาติ สินวรณ์
Publisher: name: วารสารวิจัย มสด สาขามนุษยศาสตร์และสังคมศาสตร์
Year: 2550
Subjects: เบนซีน,โทลูอีน,ระบบบำบัดไอระเหย,ถ่านกัมมันต์จากเศษไม้

description: 3, 3, วารสารวิจัย มสด สาขามนุษยศาสตร์และสังคมศาสตร์
The Young Stellar Object Corral (YSOC): A Searchable Database of Young Stars
Creators: name: Hillenbrand, Lynne A.
Publisher: name: Zenodo
Year: 2021
Subjects: young stars, young stellar objects

description: YSOC, the Young Stellar Objects Corral, is an interactive database of young stars that are located within about 1 kpc of the Sun. Collated data are made available for suspected members of: star forming regions, young stellar associations, the young field population, and benchmark open clusters. The database is a work in progress, with more uploaded data to come, but we are broadly advertising the existence of YSOC and inviting interested persons to assist us in increasing its population so as to further community science. This project has been supported by NSF and by NASA.
description: poster presentation at CS20.5
MPEC 2024-A04 : 2023 YU1
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2024
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2023 YU1

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
A counterexample concerning the L_2-projector onto linear spline spaces
Creators: name: Oswald, Peter
Publisher: name: arXiv
Year: 2006
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: 65N30; 41A15; 65N55

description: For the L_2-orthogonal projector P onto spaces of linear splines over simplicial partitions of polyhedral domains in R^d, d>1, we show that the L_infty norm of P cannot be bounded uniformly with respect to the partition. This is in contrast to d=1, where these norms are bounded by 3 independently of the partition. This negative result is folklore among specialists in finite element methods and approximation theory but seemingly has never been formally proved.
description: 7 pages, 1 figure, submitted to Mathematics of Computation
กลยุทธ์การแข่งขันสำหรับธุรกิจชุมชนกลุ่มอาหารแปรรูป
Creators: name: สุรพงษ์ จริสโรจนกุล
name: อุทิศ ศิริวรรณ
Publisher: name: วารสารวิจัย มสด สาขามนุษยศาสตร์และสังคมศาสตร์
Year: 2550
Subjects: อาหารแปรรูป,กลยุทธ์การแข่งขัน,ธุรกิจชุมชน

description: 3, 3, วารสารวิจัย มสด สาขามนุษยศาสตร์และสังคมศาสตร์
The Mid-Infrared Fundamental Plane of Early-Type Galaxies
Creators: name: Jun, Hyunsung David
name: Im, Myungshin
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Three observables of early-type galaxies - size ($r_{e}$), surface brightness ($I_{e}$), and velocity dispersion ($σ_{0}$) - form a tight planar correlation known as the fundamental plane (FP), which has provided great insights into the galaxy formation and the evolution processes. However, the FP has been found to be tilted against the simple virial expectation, prompting debates on its origin. In order to investigate the contribution of systematic stellar population variation to the FP tilt, we study here the FP relations of early-type galaxies in mid-infrared (MIR) which may represent the stellar mass well. We examined the wavelength dependence of the FP coefficients, $a$ and $b$ in $\log r_{e}= a\logσ_{0} + b\log< I >_{e} + c$, using a sample of 56 early-type galaxies for which visible (V-band), near-infrared (K-band), and MIR (Spitzer IRAC, 3.6--8.0$μ$m) data are available. We find that the coefficient $a$ increases as a function of wavelength as $da/dλ=0.11\pm0.04μm^{-1}$, while the coefficient $b$ reaches the closest to -1 at 3.6--5.8$μ$m. When applied to the visible FP coefficients derived from a larger sample of nearby early-type galaxies, we get the FP relation with $(a,b) \simeq $(1.6--1.8,-0.9) at 3.6$μ$m. Our result suggests that the stellar population effect can explain more than half of the FP tilt, closing the gap between the virial expectation and the optical FP. The reduction in the FP tilt is reflected in the dynamical mass-to-light ratio, $M_{dyn}/L$, dependence on $L$ which decreases toward 3.6--5.8$μ$m, suggesting that the MIR light better represents mass than the shorter wavelengths.
description: 5 pages, 3 figures, to appear in ApJL
ยุทธศาสตร์การใช้สื่อพิเศษในธุรกิจโฆษณายุคใหม่กรณีศึกษา: เครื่องดื่มแอลกอฮอล์
Creators: name: บำรุง ศรีนวลปาน
name: เสรี วงษ์มณฑา
Publisher: name: วารสารวิจัย มสด สาขามนุษยศาสตร์และสังคมศาสตร์
Year: 2550
Subjects: สื่อพิเศษ,ธุรกิจโฆษณายุคใหม่,เครื่องดื่มแอลกอฮอล์

description: 3, 3, วารสารวิจัย มสด สาขามนุษยศาสตร์และสังคมศาสตร์
Peter Pan Disks: Long-lived Accretion Disks Around ≥20 Myr Low-Mass Stars
Creators: name: Silverberg, Steven M.
name: Kuchner, Marc J.
Publisher: name: Zenodo
Year: 2021
Subjects: Young stars
Circumstellar disks
Accretion disks
Variability

description: This poster summarizes Silverberg et al. (2020) and subsequent new results in the literature regarding “Peter Pan” disks, a class of substantial M star disks with spectroscopic evidence of accretion in young stellar associations (YSAs) at ages ≥20 Myr—i.e. they seem to "never grow up." We outline the ensemble characteristics of the eight known Peter Pan disks from optical and near-IR spectroscopy, ALMA observations of WISEA J080822.18-644357.3 (J0808; the prototypical Peter Pan disk), and optical light curves, including TESS Cycle 3 observations of J0808. We find that these objects most plausibly represent long-lived CO-poor primordial disks, or "hybrid" disks, exhibiting both debris and primordial-disk features. We finally outline Disk Detective v2.0, a citizen science project for identifying circumstellar disks in WISE data that is explicitly designed to leverage Gaia to search for new Peter Pan disks.
description: {"references": ["Carpenter, John et al. (2009). ApJS, 181, 197", "Cody, Ann Marie et al. (2014). AJ, 147, 82", "Coleman, Gavin & Haworth, Thomas. (2020). MNRAS, 496, L111", "Esplin, Taran et al. (2018). AJ, 156, 75", "Flaherty, Kevin et al. (2019). ApJ, 872, 92", "Gagne, Jonathan et al. (2018). ApJ, 856, 23", "Gillon, Michael et al. (2016). Nature, 533, 221", "Gillon, Michael et al. (2017). Nature, 542, 456", "Kuchner, Marc et al. (2016). ApJ, 830, 84", "Lee, Jinhee et al. (2020). MNRAS, 494, 62", "Matsumura, Soko & Pudritz, Ralph E. (2006). MNRAS, 365, 572", "Murphy, Simon et al. (2018). MNRAS, 476, 3290", "Quarles, Billy et al. (2017). ApJL, 842, L5", "Silverberg, Steven et al. (2016). ApJ, 830, L28", "Silverberg, Steven et al. (2020). ApJ, 890, 106", "White, Russel & Basri, Gibor. (2003) ApJ, 582, 1109"]}
Coefficient of restitution for viscoelastic disks
Creators: name: Schwager, Thomas
Publisher: name: arXiv
Year: 2007
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: The dissipative collision of two identical viscoelastic disks is studied. By using a known law for the elastic part of the interaction force and the viscoelastic damping model an analytical solution for the coefficient of restitution shall be given. The coefficient of restitution depends significantly on the impact velocity. It approaches one for small velocities and decreases for increasing velocities.
description: 11 pages, 3 figures
กระบวนทัศน์การสื่อสารเพื่อการรณรงค์ส่งเสริมการมีส่วนร่วมทางการเมืองของประชาชน
Creators: name: ชมพูนุท นุตาคม
name: เสรี วงษ์มณฑา
Publisher: name: วารสารวิจัย มสด สาขามนุษยศาสตร์และสังคมศาสตร์
Year: 2550
Subjects: กระบวนทัศน์การสื่อสาร,การมีส่วนร่วมทางการเมือง,บทบาทประชาชน,การเมือง

description: 3, 3, วารสารวิจัย มสด สาขามนุษยศาสตร์และสังคมศาสตร์
Solar system effects in Schwarzschild--de Sitter spacetime
Creators: name: Kagramanova, Valeria
name: Kunz, Jutta
name: Lämmerzahl, Claus
Publisher: name: arXiv
Year: 2006
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The Schwarzschild--de Sitter space--time describes the gravitational field of a spherically symmetric mass in a universe with cosmological constant $Λ$. Based on this space--time we calculate Solar system effects like gravitational redshift, light deflection, gravitational time delay, Perihelion shift, geodetic or de Sitter precession, as well as the influence of $Λ$ on a Doppler measurement, used to determine the velocity of the Pioneer 10 and 11 spacecraft. For $Λ=Λ_0 \sim 10^{-52} {\rm m}^{-2}$ the cosmological constant plays no role for all of these effects, while a value of $Λ\sim - 10^{-37} {\rm m}^{-2}$, if hypothetically held responsible for the Pioneer anomaly, is not compatible with the Perihelion shift.
description: Published version
The INTEGRAL view of the pulsating hard X-ray sky: from accreting and transitional millisecond pulsars to rotation-powered pulsars and magnetars
Creators: name: Papitto, A.
name: Falanga, M.
name: Hermsen, W.
name: Mereghetti, S.
name: Kuiper, L.
name: Poutanen, J.
name: Bozzo, E.
name: Ambrosino, F.
name: Zelati, F. Coti
name: De Falco, V.
name: de Martino, D.
name: Di Salvo, T.
name: Esposito, P.
name: Ferrigno, C.
name: Forot, M.
name: Götz, D.
name: Gouiffes, C.
name: Iaria, R.
name: Laurent, P.
name: Li, J.
name: Li, Z.
name: Mineo, T.
name: Moran, P.
name: Neronov, A.
name: Paizis, A.
name: Rea, N.
name: Riggio, A.
name: Sanna, A.
name: Savchenko, V.
name: Słowikowska, A.
name: Shearer, A.
name: Tiengo, A.
name: Torres, D. F.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: In the last 25 years, a new generation of X-ray satellites imparted a significant leap forward in our knowledge of X-ray pulsars. The discovery of accreting and transitional millisecond pulsars proved that disk accretion can spin up a neutron star to a very high rotation speed. The detection of MeV-GeV pulsed emission from a few hundreds of rotation-powered pulsars probed particle acceleration in the outer magnetosphere, or even beyond. Also, a population of two dozens of magnetars has emerged. INTEGRAL played a central role to achieve these results by providing instruments with high temporal resolution up to the hard X-ray/soft gamma-ray band and a large field of view imager with good angular resolution to spot hard X-ray transients. In this article, we review the main contributions by INTEGRAL to our understanding of the pulsating hard X-ray sky, such as the discovery and characterization of several accreting and transitional millisecond pulsars, the generation of the first catalog of hard X-ray/soft gamma-ray rotation-powered pulsars, the detection of polarization in the hard X-ray emission from the Crab pulsar, and the discovery of persistent hard X-ray emission from several magnetars.
description: Accepted for publication on New Astronomy Reviews as invited contribution
ยุทธศาสตร์การจัดการการสื่อสารเพื่อสร้างภาพลักษณ์และส่งเสริมการท่องเที่ยวบริเวณจังหวัดชายแดนไทย-ลาวในภาคตะวันออกเฉียงเหนือตอนบนของประเทศไทย: กรณีศึกษาจังหวัดหนองคายและอุดรธานี
Creators: name: วัชพร มานะจิตร
name: ชวนะ ภาวกานนท์
Publisher: name: วารสารวิจัย มสด สาขามนุษยศาสตร์และสังคมศาสตร์
Year: 2550
Subjects: การสื่อสารเพื่อสร้างภาพลักษณ์และส่งเสริมการท่องเที่ยว,หนองคายและอุดรธานี,การรับรู้ของนักท่องเที่ยว,ยุทธศาสตร์การพัฒนา

description: 3, 3, วารสารวิจัย มสด สาขามนุษยศาสตร์และสังคมศาสตร์
ยุทธศาสตร์การพัฒนาทรัพยากรมนุษย์ของสำนักงานคณะกรรมการพัฒนาระบบราชการ (ก.พ.ร.)
Creators: name: สีนีมาศ สร้อยคีรี
name: ติน ปรัชญพฤทธิ์
Publisher: name: วารสารวิจัย มสด สาขามนุษยศาสตร์และสังคมศาสตร์
Year: 2550
Subjects: การพัฒนาทรัพยากรมนุษย์,สำนักงานคณะกรรมการพัฒนาระบบราชการ, (ก.พ.ร.),ยุทธศาสตร์การพัฒนาร

description: 3, 3, วารสารวิจัย มสด สาขามนุษยศาสตร์และสังคมศาสตร์
Fermi Surface Reconstruction in CeRh$_{1-x}$Co$_{x}$In$_{5}$
Creators: name: Goh, Swee K.
name: Paglione, Johnpierre
name: Sutherland, Mike
name: O'Farrell, E. C. T.
name: Bergemann, C.
name: Sayles, T. A.
name: Maple, M. B.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The evolution of the Fermi surface of CeRh$_{1-x}$Co$_x$In$_5$ was studied as a function of Co concentration $x$ via measurements of the de Haas-van Alphen effect. By measuring the angular dependence of quantum oscillation frequencies, we identify a Fermi surface sheet with $f$-electron character which undergoes an abrupt change in topology as $x$ is varied. Surprisingly, this reconstruction does not occur at the quantum critical concentration $x_c$, where antiferromagnetism is suppressed to T=0. Instead we establish that this sudden change occurs well below $x_c$, at the concentration x ~ 0.4 where long range magnetic order alters its character and superconductivity appears. Across all concentrations, the cyclotron effective mass of this sheet does not diverge, suggesting that critical behavior is not exhibited equally on all parts of the Fermi surface.
description: 4 pages, 4 figures