cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Near-Field Cosmology with Local Group Dwarf Spheroidals
Creators: name: Grebel, Eva K.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The Local Group offers an excellent laboratory for near-field cosmology by permitting us to use the resolved stellar content of its constituent galaxies as probes of galaxy formation and evolution, which in turn is an important means for testing cosmological models of hierarchical structure formation. In this review, we discuss the the least massive, yet most numerous type of galaxy in the Local Group, the dwarf spheroidal galaxies, and compare their properties to cosmological predictions. In particular, we point out problems found with a simple building block scenario and with effects expected from reionization. We show that the star formation histories of dSphs are inconsistent with the predicted cessation of star formation after reionization; instead, extended star formation episodes are observed. The Galactic dSphs contain in part prominent intermediate-age populations, whereas the Galactic halo does not. Conversely, the M31 dSphs are almost entirely old, while the M31 halo contains a substantial intermediate-age population. These differences in the population structure as well as the differences in the modes of star formation inferred from [alpha/Fe] ratios make dSphs unlikely major contributors to the build-up of the Galactic and M31 halo unless most of the accretion occurred at early epochs. On the other hand, there is clear evidence for ongoing harassment and accretion of a number of dSphs.
description: Invited talk, 9 pages, 2 figures, proceedings of IAU Colloquium 198, "Near-Field Cosmology With Dwarf Elliptical Galaxies", editors H. Jerjen and B. Binggeli, Cambridge University Press
Multigluon amplitudes, ${\cal N}=4$ constraints and the WZW model
Creators: name: Abe, Yasuhiro
name: Nair, V. P.
name: Park, Mu-In
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Classical ${\cal N}=4$ Yang-Mills theory is defined by the superspace constraints. We obtain a solution of a subset of these constraints and show that it leads to the maximally helicity violating (MHV) amplitudes. The action which leads to the solvable part of the constraints is a Wess-Zumino-Witten (WZW) action on a suitably extended superspace. The non-MHV tree amplitudes can also be expressed in terms of this action.
description: LaTeX, 18 pages, references added
title: Inklusion und Intersektionalität in institutionellen Bildungskontexten
Creators: name: Bronner, Kerstin
Publisher: name: Humboldt-Universität zu Berlin
Year: 2020
Subjects: subject: Intersektionalität
subject: Macht
subject: Macht- und Herrschaftsstrukturen
subject: Mehrfachdiskriminierung
subject: Soziale Arbeit
subject: Soziale Ungleichheit
subject: ddc:370

description: Das Intersektionalitätskonzept wird im akademischen Feld hinsichtlich der Frage nach sozialer Ungleichheit, Macht und Herrschaft mittlerweile breit diskutiert. Dieser Beitrag wird den Fragen nachgehen, ob bzw. wie bekannt das Konzept im Feld der Praxis Sozialer Arbeit ist, wie Praktiker*innen das Konzept im Hinblick auf ihren professionellen Alltag beurteilen und welche Weiterentwicklungen aus ihrer Sicht notwendig wären. Grundlage bildet die Diskussion mit verschiedenen Praxiseinrichtungen der Ostschweiz, welche ich im Zeitraum eines Jahres aufsuchte, um das Konzept vorzustellen und zu diskutieren. Es zeigte sich, dass Intersektionalität als Begriff und Konzept nicht bekannt ist, eine Fokussierung von Mehrfachdiskriminierungen aber sehr wohl praktiziert wird. Als macht- und herrschaftskritisches Analyseinstrument löste der Intersektionalitätsansatz in mehrerer Hinsicht Aha-Erlebnisse bei den Praktiker*innen aus und wurde vor allem für die kritische Selbstreflexion sowie für die Ent-Individualisierungsarbeit von Adressat*innen sehr geschätzt. Weiterentwicklungsbedarf wurde hinsichtlich handlungsbezogener Konsequenzen formuliert.
Malawi’s Maize Marketing System
Creators: name: Jayne, Thomas S.
name: Sitko, Nicholas J.
name: Ricker-Gilbert, Jacob
name: Mangisoni, Julius H.
name: Jayne, Thomas S.
name: Sitko, Nicholas J.
name: Ricker-Gilbert, Jacob
name: Mangisoni, Julius H.
Publisher: name: Unknown
Year: 2010
Subjects: subject: Agricultural and Food Policy
subject: Community/Rural/Urban Development
subject: Food Security and Poverty
subject: International Development
subject: Marketing
subject: FOS: Economics and business
subject: food security
subject: Malawi
subject: maize
subject: marketing
subject: food policy

description: National food security in Malawi depends on improving the performance of maize markets. Ensuring that grain is consistently available at tolerable prices is crucial for consumers’ food security. At the same time, surplus producing farmers need to receive farm-gate prices consistently above production costs to intensify the use of fertilizer and other productivity enhancing technologies in a sustainable manner. These concerns give rise to the classic food price dilemma for policy makers in Malawi: how to keep prices low enough to ensure low income consumers’ access to food while keeping prices high enough to promote farm production incentives. These tensions cannot be avoided but they can be relieved through reducing food marketing margins, which shrink the wedge between producer and consumer prices. Moreover, Malawi faces major political and economic problems associated with food price instability especially given its dependence on rain fed agriculture in a region prone to drought. These issues show that improving the performance of maize markets is at the core of achieving sustainable food security and poverty reduction in Malawi.
Oscillatory spin relaxation rates in quantum dots
Creators: name: Destefani, C. F.
name: Ulloa, Sergio E.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Phonon-induced spin relaxation rates in quantum dots are studied as function of in-plane and perpendicular magnetic fields, temperature and electric field, for different dot sizes. We consider Rashba and Dresselhaus spin-orbit mixing in diferent materials, and show how Zeeman sublevels can relax via piezoelectric and deformation potential coupling to acoustic phonons. We find that strong lateral and vertical confinements may induce minima in the rates at particular values of the magnetic field, where spin relaxation times can reach even seconds. We obtain good agreement with experimental findings in GaAs quantum dots.
description: 4 pages, 4 figures, higher resolution figures under request
title: Gender Health Gap als Folge ungleicher Vernutzungsbedingungen von Arbeitskraft und Arbeitsvermögen
Creators: name: Becker, Karina
Publisher: name: Humboldt-Universität zu Berlin
Year: 2020
Subjects: subject: Erwerbsarbeit
subject: Gender Health Gap
subject: Gesundheit
subject: Gesundheitliche Ungleichheit
subject: Gesundheitsschutz
subject: Soziale Ungleichheit
subject: ddc:330

description: Der Beitrag geht der Frage nach, ob sich geschlechtsbezogene Ungleichheit zum Nachteil von Frauen nicht nur an Verdienstnachteilen und an eingeschränkten Aufstiegsmöglichkeiten festmachen lässt, sondern auch an den Vernutzungsbedingungen von Arbeitskraft und Arbeitsvermögen und mit ihnen der Gesundheit. Anhand quantitativer und qualitativer arbeitssoziologischer Untersuchungen wird gesundheitliche Ungleichheit geschlechterbezogen erforscht. Es wird gezeigt, dass im Feld der Erwerbsarbeit und im Feld der Sorge- und Hausarbeit Frauen höheren Gesundheitsrisiken ausgesetzt sind als Männer, die Arbeitswelt demnach auch durch einen Gender Health Gap gekennzeichnet ist.
Leptogenesis as the source of gravitino dark matter and density perturbations
Creators: name: Allahverdi, Rouzbeh
name: Drees, Manuel
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We investigate the possibility that the entropy producing decay of a right-handed sneutrino condensate can simultaneously be the source of the baryon asymmetry, of gravitino dark matter, and of cosmological density perturbations. For generic values of soft supersymmetry breaking terms in the visible sector of 1-10 TeV, condensate decay can yield the dark matter abundance for gravitinos in the mass range 1 MeV to 1 TeV, provided that the resulting reheat temperature is below $10^6$ GeV. The abundance of thermally produced gravitinos before and after sneutrino decay is then negligible. We consider different leptogenesis mechanisms to generate a sufficient asymmetry, and find that low-scale soft leptogenesis works most naturally at such temperatures. The condensate can easily generate sufficient density perturbations if its initial amplitude is $\sim {\cal O}(M_{\rm GUT})$, for a Hubble expansion rate during inflation $> 10^9$ GeV. Right-handed sneutrinos may therefore at the same time provide a source for baryogenesis, dark matter and the seed of structure formation.
description: 12 pages. Cosmetic changes made and references added. Final version to appear in Phys. Rev. D
Arbitration to resolve international commercial disputes under the Brazilian arbitration act : is Brazil a good site for arbitration?
Creators: name: Amigo, Natalia Guajardo
Publisher: name: University of British Columbia
Year: 2009

description: For a long time, Brazil remained faithful to its historic attitude of hostility towards arbitration. This placed Brazil in a state of dangerous isolation in times of fast technological changes, privatization, foreign investment and globalization affecting Latin America. The boom period of the mid 1990's was a time when large deals and contracts were signed and the seeds of modern international commercial arbitration were sown once again in the region. International investors and businesses setting up operations in Latin America demanded dispute resolution mechanisms that provided confidence and certainty that any disputes arising under contractual agreements were going to be resolved expeditiously, impartially and by knowledgeable experts. In this environment when privatization of telecommunications and hydroelectric power stations was occurring, the 1990's marked the renaissance of arbitration in Brazil with the enactment of new legislation on arbitration, the Brazilian Arbitration Act of 1996 (Law 9.307/96) ("the Act"). Since the enactment of the Act, arbitration has been the subject of study by scholars and strong efforts have been made to promote the use of arbitration in the country. This thesis focuses on the recent development of arbitration after the enactment of the Brazilian Arbitration Act, with an emphasis on the Act's regulations. The thesis recommends improvements which may be made in order to attract more foreign investors who seek the certainty that Brazil is a good venue for arbitration.
Bounds on Cosmic Strings from WMAP and SDSS
Creators: name: Wyman, Mark
name: Pogosian, Levon
name: Wasserman, Ira
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We find the constraints from WMAP and SDSS data on the fraction of cosmological fluctuations sourced by local cosmic strings using a Markov Chain Monte Carlo (MCMC) analysis. In addition to varying the usual 6 cosmological parameters and the string tension ($μ$), we also varied the amount of small-scale structure on the strings. Our results indicate that cosmic strings can account for up to 7 (14)% of the total power of the microwave anisotropy at 68 (95)% confidence level. The corresponding bound on the string mass per unit length, within our string model, is $Gμ< 1.8 (2.7) \times 10^{-7}$ at 68 (95)% c.l., where this constraint has been altered from what appears below following the correction of errors in our cosmic string code outlined in a recent erratum, astro-ph/0604141. We also calculate the B-type polarization spectra sourced by cosmic strings and discuss the prospects of their detection.
description: 11 pages, 7 figures. A few errors in the computer code used to calculated CMB anistotropy from strings are fixed, resulting in a somewhat tighter bound on G\mu and an enhanced B-mode polarization. Details of the corrected errors and their implications can be found in astro-ph/0604141. Go to http://physics.syr.edu/~lepogosi/cmbact.html for our now-corrected cosmic string CMB and LSS code
Improved temperature measurement and modeling for 3D USCT II
Creators: name: Zapf, Michael
name: Patel, Anirudh
name: Menshikov, Alexander
name: Ruiter, Nicole V.
Publisher: name: KIT Scientific Publishing
Year: 2018

description: Medical visualization plays a key role in the early diagnosis and detection of symptoms related to breast cancer. However, currently doctors must struggle to extract accurate and relevant information from the 2D models on which the medical field still relies. The problem is that 2D models lack the spatial definition necessary to extract all of the information a doctor might want. In order to address this gap, we are developing a machine capable of performing ultrasound computer tomography and reconstructing 3D images of the breasts - the KIT 3D USCT II. In order to accurately reconstruct the 3D image using ultrasound, we must first have an accurate temperature model. This is because the speed of sound varies significantly based on the temperature of the medium (in our case, water). We address this issue in three steps: so-called super-sampling, calibration, and modeling. Using these three steps, we were able to improve the accuracy of the hardware from ±1°C to just under 0.1°C.
Synthesis and Testing on Engine Characteristics of Biodiesel Obtained by Orange Peel Oil Methyl Ester Blended with Diesel Fuel.pdf
Creators: name: Y, Alex
Publisher: name: figshare
Year: 2020
Subjects: subject: 91305 Energy Generation, Conversion and Storage Engineering
subject: FOS: Mechanical engineering

description: The increase in demand and depletion of fossil fuels, due to population growth, which led to the rise in the use of vehicles and the transportation sector. The ever increasing environmental issues and the rising cost of fossil fuels in the world market have also contributed an opportunity for the researchers to develop a potential alternative fuel. Among this concept, alternative fuel must be attractive such as diesel inefficiency and eco-friendly. Thus the characteristics of biodiesel have made the historical background of attractive qualities inefficiency. The bio-diesel production has to turn out to be more attractive at the present time period, because of its benefits over environmental issues and the truth that, it is made from renewable and environmentally available resources. Although in most of the countries orange-peels are considered as waste. The utilization of peels instead of edible parts of the resources in reducing the cost of biodiesel production to a great extent. The research study is intended to transform the waste resources into wealthy products, and an essential product is obtained by establishing the production of bio-diesel with oil extracted from orange-peels; using the transesterification process. The fatty acid composition of the feedstock is studied by gas chromatography-mass spectroscopy method and FT-IR test. This experimental work is carried out to study the physio-chemic properties, and to study the four-stroke diesel engine performance and emissions characteristics, fueled with orange-peel oil methyl ester biodiesel blends at different concentrations (10, 20, and 30) percentages with diesel fuel. The results obtained are in close agreement with the requirement of ASTM biodiesel standards. It has been establishing that at peak load conditions, the higher blend percentage of biodiesel shows better and higher output performance than that of conventional diesel fuel. Emissions characteristics were also found to be reduced to a great extent. From the available resources, it is confirmed that the better combustion characteristics are due to the oxygenated fuel content called the limonene compound in the biodiesel feedstock. Another end product of transesterification process called glycerol was recycled twice before it finally lost potential and further it can be used as constituents for the soap manufacturing process.
Skin cancer prediction using deep learning techniques
Creators: name: Gadhiya, riddhi
name: Dhaduk, jenilkumar
name: Patel, Megha
name: Chauhan, Ravirajsinh
Publisher: name: Zenodo
Year: 2024

description: Recent innovations in deep learning have improved the detection of skin cancer and speed up the process while now yielding better accuracy through automated systems. From CNNs, transfer learning, and hybrid approaches, different deep learning models have come in handy in identifying malignant and dangerous skin conditions such as melanoma. The most effective techniques for distinguishing between the dermoscopic images of skin lesions to improve the performance of diagnostic systems with various datasets would be MobileNet, federated learning, and genetic algorithms.

Melanoma is one of the most aggressive forms of skin cancer whose incidence continues to rise around the world. Early detection is likely to be the most crucial factor that will improve patient survival rates. Despite much progress, the challenges remain variability in data, ability of models to generalize across environments, and ensuring that the models are efficient and scalable. The current emphasis in research is overcoming these challenges to create systems that can be smoothly integrated into clinical practice.

Indeed, it is shown that a use of optimized CNNs and MobileNet-based models significantly enhanced classification accuracy with detection rates of above 90% in some of the used datasets. These are the early findings that can pave the way toward any deep learning promises that could possibly be held for early skin cancer detection, thus reducing reliance on manual diagnosis, furthering the outcomes of the care process.
Title Etude sur la transmission des fluctuations et le calcul des prix de parité du riz et du maïs au Niger
Creators: name: Addoh, Sani Laouali
name: Ousmane, Salifou Sanda
name: Addoh, Sani Laouali
name: Ousmane, Salifou Sanda
Publisher: name: Unknown
Year: 2010
Subjects: subject: Agricultural and Food Policy
subject: Food Security and Poverty
subject: International Relations/Trade
subject: Marketing
subject: FOS: Economics and business
subject: food security
subject: Niger
subject: food policy
subject: parity price
subject: marketing

description: Calculation of rice and maize parity prices in Niger.
On the Jordan-Moore-Gibson-Thompson wave equation in hereditary fluids with quadratic gradient nonlinearity
Creators: name: Nikolić, Vanja
name: Said-Houari, Belkacem
Publisher: name: arXiv
Year: 2020
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35L75, 35G25

description: We prove global solvability of the third-order in time Jordan-More-Gibson-Thompson acoustic wave equation with memory in $\mathbb{R}^n$, where $n \geq 3$. This wave equation models ultrasonic propagation in relaxing hereditary fluids and incorporates both local and cumulative nonlinear effects. The proof of global solvability is based on a sequence of high-order energy bounds that are uniform in time, and derived under the assumption of an exponentially decaying memory kernel and sufficiently small and regular initial data.
PPFP Choices Kenya Postpartum Interview 1
Creators: name: Olapeju, Bolanle
name: Charurat, Elaine
name: Kennedy, Sara
name: Breithaupt, Lindsay
name: Christofield, Megan
name: Schuster, Anne
Publisher: name: figshare
Year: 2020
Subjects: subject: 111707 Family Care
subject: FOS: Health sciences
subject: Health Care

description: This is the Kenya Immediate Postpartum interview tool (Interview 1) for Jhpiego's Post Pregnancy Family Planning Choices (PPFP Choices) operations research study in Kenya and Indonesia. Included are the English, Kiswahili and Kimeru versions of the pre-interview 1 and Interview 1.
Etude sur la transmission des fluctuations et les prix de parité du riz et du maïs au Mali
Creators: name: Traore, Pierre
name: Diarra, Salifou Bakary
name: Traore, Pierre
name: Diarra, Salifou Bakary
Publisher: name: Unknown
Year: 2010
Subjects: subject: Agricultural and Food Policy
subject: Community/Rural/Urban Development
subject: Food Security and Poverty
subject: International Development
subject: Marketing
subject: FOS: Economics and business
subject: food security
subject: Mali
subject: food policy
subject: markets
subject: prices

description: Calculation of maize and rice parity prices in Mali.
The inherent right of aboriginal self-government in Australia
Creators: name: Barr, Olivia McLeod
Publisher: name: University of British Columbia
Year: 2009

description: The relationship between Aboriginal peoples and the rest of contemporary Australian society is bittersweet. While Australians have embraced some aspects of Aboriginal culture - especially in art and sport - governments and the courts cling stubbornly to colonial attitudes when it comes to matters of justice and civil and political rights. The failure to recognise and give effect to Aboriginal rights has contributed to a significant power imbalance between Aboriginal people and the wider Australian society. This imbalance is manifest in a lack of education, employment and healthcare options for Aboriginal people and in the overrepresentation of Aboriginal people in the criminal justice system. One way to address this power imbalance is to recognise and protect a greater measure of Aboriginal self-government. However, the concept of self-government has an extremely low profile in Australia. It is not a matter of current government policy and the courts have only dealt with self-government as a peripheral aspect of native title. I consider the question of whether there is a common law right of self-government in Australia. I look to Canadian aboriginal rights jurisprudence to inform the development and recognition of a common law doctrine of self-government in Australia. As soon as one looks beyond the rhetoric of legal positivism and analyses the case law in its historical context, it becomes apparent that the inherent right of self-government existed as part of the colonial common law imported into Australia. Importantly, the inherent right of self-government continues to form part of Australian common law. The inherent right of self-government must be recognised. This is crucial, not only to address the significant power imbalance that exists in Australia today, but also to maintain the conceptual integrity of the Australian legal system.
Evolution in the Cluster Early-type Galaxy Size-Surface Brightness Relation at z =~ 1
Creators: name: Holden, B. P.
name: Blakeslee, J. P.
name: Postman, M.
name: Illingworth, G. D.
name: Demarco, R.
name: Franx, M.
name: Rosati, P.
name: Bouwens, R. J.
name: Martel, A. R.
name: IDT, ACS
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We investigate the evolution in the distribution of surface brightness, as a function of size, for elliptical and S0 galaxies in the two clusters RDCS J1252.9-2927, z=1.237 and RX J0152.7-1357, z=0.837. We use multi-color imaging with the Advanced Camera for Surveys on the Hubble Space Telescope to determine these sizes and surface brightnesses. Using three different estimates of the surface brightnesses, we find that we reliably estimate the surface brightness for the galaxies in our sample with a scatter of < 0.2 mag and with systematic shifts of \lesssim 0.05 mag. We construct samples of galaxies with early-type morphologies in both clusters. For each cluster, we use a magnitude limit in a band which closely corresponds to the rest-frame B, to magnitude limit of M_B = -18.8 at z=0, and select only those galaxies within the color-magnitude sequence of the cluster or by using our spectroscopic redshifts. We measure evolution in the rest-frame B surface brightness, and find -1.41 \+/- 0.14 mag from the Coma cluster of galaxies for RDCS J1252.9-2927 and -0.90 \+/- 0.12 mag of evolution for RX J0152.7-1357, or an average evolution of (-1.13 \+/- 0.15) z mag. Our statistical errors are dominated by the observed scatter in the size-surface brightness relation, sigma = 0.42 \+/- 0.05 mag for RX J0152.7-1357 and sigma = 0.76 \+/- 0.10 mag for RDCS J1252.9-2927. We find no statistically significant evolution in this scatter, though an increase in the scatter could be expected. Overall, the pace of luminosity evolution we measure agrees with that of the Fundamental Plane of early-type galaxies, implying that the majority of massive early-type galaxies observed at z =~ 1 formed at high redshifts.
description: Accepted in ApJ, 16 pages in emulateapj format with 15 eps figures, 6 in color
Complex modes in an open lossless periodic waveguide
Creators: name: Abdrabou, Amgad
name: Lu, Ya Yan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Guided modes of an open periodic waveguide, with a periodicity in the main propagation direction, are Bloch modes confined around the waveguide core with no radiation loss in the transverse directions. Some guided modes can have a complex propagation constant, i.e. a complex Bloch wavenumber, even when the periodic waveguide is lossless (no absorption loss). These so-called complex modes are physical solutions that can be excited by incident waves whenever the waveguide has discontinuities and defects. We show that the complex modes in an open dielectric periodic waveguide form bands, and the endpoints of the bands can be classified to a small number of cases, including extrema on dispersion curves of the regular guided modes, bound states in the continuum, degenerate complex modes, and special diffraction solutions with blazing properties. Our study provides an improved theoretical understanding on periodic waveguides and a useful guidance to their practical applications.
DCore: Integrated DMFT software for correlated electrons
Creators: name: Shinaoka, Hiroshi
name: Otsuki, Junya
name: Kawamura, Mitsuaki
name: Takemori, Nayuta
name: Yoshimi, Kazuyoshi
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We present a new open-source program, DCore, that implements dynamical mean-field theory (DMFT). DCore features a user-friendly interface based on text and HDF5 files. It allows DMFT calculations of tight-binding models to be performed on predefined lattices as well as \textit{ab initio} models constructed by external density functional theory codes through the Wannier90 package. Furthermore, DCore provides interfaces to many advanced quantum impurity solvers such as quantum Monte Carlo and exact diagonalization solvers. This paper details the structure and usage of DCore and shows some applications.
description: 33 pages in single column format. Based on DCore v3.0.0
Cranium Study 1 Materials
Creators: name: Goldey, Katherine
Publisher: name: figshare
Year: 2020
Subjects: subject: 170199 Psychology not elsewhere classified
subject: FOS: Psychology

description: Materials from Study 1 for A Cranium Game for General Psychology. Includes cards and powerpoints for Cranium activity for Exam 1 (Methods, Neuro, Development), Exam 2 (Learning, Cognitive, and Social), and Exam 3 (Emotions, Personality, Clinical).
In the Realm of the Geometric Transitions
Creators: name: Alexander, Stephon
name: Becker, Katrin
name: Becker, Melanie
name: Dasgupta, Keshav
name: Knauf, Anke
name: Tatar, Radu
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We complete the duality cycle by constructing the geometric transition duals in the type IIB, type I and heterotic theories. We show that in the type IIB theory the background on the closed string side is a Kahler deformed conifold, as expected, even though the mirror type IIA backgrounds are non-Kahler (both before and after the transition). On the other hand, the Type I and heterotic backgrounds are non-Kahler. Therefore, on the heterotic side these backgrounds give rise to new torsional manifolds that have not been studied before. We show the consistency of these backgrounds by verifying the torsional equation.
description: 60 pages, 2 .eps figures, Harvmac; v2: Minor typos corrected and references added; v3: Some more typos corrected. Final version to appear in Nucl. Phys. B
Ammonixys Kim & Boxshall 2020, gen. nov.
Creators: name: Kim, Il-Hoi
name: Boxshall, Geoff A.
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Copepoda
Cyclopoida
Notodelphyidae
Ammonixys

description: Ammonixys gen. nov.
Diagnosis. Body globular with swollen, almost spherical, fourthpedigerous somite. Freeurosome 5-segmented. Caudalsetae obscure. Rostrum well-developed.Antennule small, 6-segmented. Antenna 4-segmented withsmall terminal claw. Mandible with 4 teeth on coxal gnathobase; exopod fused with basis, represented by 2 setae; endopod 2-segmented with 1 and 4 setae on first and second segments, respectively. Maxillulewith 6 setaeon arthrite, 1 each on coxal epipodite and basis, 4 on exopod and 3 on endopod; coxal endite absent. Maxilla 4-segmented; syncoxa with 2 endites; basis with claw plus 1 seta; endopod 2-segmented. Maxilliped as unsegmented lobe bearing 4 setae. Legs 1–3 with 3-segmented rami. Leg 4 with 3-segmented exopod and 2-segmented endopod. Innercoxalsetaabsentinlegs 1–4. Leg 1 lacking inner distal element on basis. First and second exopodal segments of legs 1–4 lacking inner seta. First and second endopodal segments of legs 1–3 lacking inner seta. Leg 5 represented by lobe and tapering, sclerotized process located ventrodistally on somite.
Typespecies. Ammonixysquadridens gen. etsp. nov. by original designation.
Etymology. The name is derived from the Greek ammon (=African) and ixys, referring to the discovery of the new genus in Africa.
Remarks. Ammonixys gen. nov. resembles Doroixys in the absence of the inner seta on the proximal endopodal segment(s) of legs 2–4, but the new genus exhibits a striking derived feature separating it from Doroixys and other genera, namely, the loss of a distinct mandibular exopod. The exopod is respresented only by a pair of setae originating on the surface of the fused basis plus exopod. The setation of leg 1 is also distinctive because the first and second exopodal and endopodal segments of leg 1 all lack an inner seta, and the basis of leg 1 is unarmed. This setation of leg 1 differs from that expressed by the four new genera described above, Prodoroixys gen. nov., Notoixys gen. nov., Borixys gen. nov., and Cystixys gen. nov. Although the loss of inner setae from the exopod of leg 1 occurs in Loboixys, the latter genus usually retains the inner setae on the endopod of leg 1. Unlike in Ammonixys gen. nov., the seven known species of Loboixys each have a 3-segmented antenna and carry 6 setae on the maxilliped. This constitutes an additional significant difference between Loboixys and Ammonixys gen. nov., which has a 4-segmented antenna and carries only 4 setae on the maxilliped.
description: Published as part of Kim, Il-Hoi & Boxshall, Geoff A., 2020, Untold diversity: the astonishing species richness of the Notodelphyidae (Copepoda: Cyclopoida), a family of symbiotic copepods associated with ascidians (Tunicata), pp. 1-6 in Megataxa 4 (1) on page 539, DOI: 10.11646/megataxa.4.1.1, http://zenodo.org/record/4591138
A LEADER+ program a dél-mátrai településeken
Creators: name: Szenasy, Andrea
name: Szenasy, Andrea
Publisher: name: Unknown
Year: 2009
Subjects: subject: Agricultural and Food Policy
subject: Community/Rural/Urban Development
subject: LEADER+
subject: vidékfejlesztés
subject: életminőség javítása
subject: „Dél-Mátra 11”
subject: „Dél-Mátra” akciócsoport
subject: rural development
subject: improving quality of life
subject: South-Mátra 11
subject: South-Mátra action group

description: A LEADER+ programban megpályázható pénzek ugyan nem oldják meg a térség gazdasági és szociális problémáit egyik pillanatról a másikra, de jó lehetőséget nyújtanak arra, hogy együttműködő partnerek, a település lehetőségeihez igazodva, projektek megvalósítását kezdeményezzék. Erre vállalkozott 2005-ben a „Dél-Mátra 11” akciócsoport, melynek kedvező fogadtatásain felbuzdulva még 13 település csatlakozott, s „Dél-Mátra” akciócsoportként folytatják a már megkezdett utat. ------------------------------------------- The funds that are available under the LEADER+ programme will not solve the economic and social problems of the area in the blink of the eye, but they are an excellent opportunity for the cooperating partners to implement projects that were unfeasible for them before. The South-Mátra 11 Action Group, established in 2005, embarked on this journey. After the enthusiastic welcome it received, 13 more settlements joined the founding members. Together they form the South-Mátra Action Group and continue on this journey, strengthening the positive impacts that were initiated.
A STUDY OF PERFORMANCE IN SOCIAL LEARNING CENTER IN MALAYSIA
Creators: name: Ali, Muhammad Najib
Publisher: name: figshare
Year: 2020
Subjects: subject: 160512 Social Policy
subject: FOS: Political science

description: This study is to identify the determinant factors contribute to the performance of social learning centre. The target group for quantitative study would be the operator of U3e, PAWE and private care that runs similar programme or activities for active elderly. There are 250 operators targeted as sample size of population. A minimum of 150 sample size were involved in this study. This study has selected PAWE, u3e, private day care centre in Klang Valley and Selangor through a stratified simple random method.
A Dynamic model for the Lagrangian Averaged Navier-Stokes-$α$ Equations
Creators: name: Zhao, Hongwu
name: Mohseni, Kamran
Publisher: name: arXiv
Year: 2004
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: A dynamic procedure for the Lagrangian Averaged Navier-Stokes-$α$ (LANS-$α$) equations is developed where the variation in the parameter $α$ in the direction of anisotropy is determined in a self-consistent way from data contained in the simulation itself. The dynamic model is initially tested in forced and decaying isotropic turbulent flows where $α$ is constant in space but it is allowed to vary in time. It is observed that by using the dynamic LANS-$α$ procedure a more accurate simulation of the isotropic homogeneous turbulence is achieved. The energy spectra and the total kinetic energy decay are captured more accurately as compared with the LANS-$α$ simulations using a fixed $α$. In order to evaluate the applicability of the dynamic LANS-$α$ model in anisotropic turbulence, a priori test of a turbulent channel flow is performed. It is found that the parameter $α$ changes in the wall normal direction. Near a solid wall, the length scale $α$ is seen to depend on the distance from the wall with a vanishing value at the wall. On the other hand, away from the wall, where the turbulence is more isotropic, $α$ approaches an almost constant value. Furthermore, the behavior of the subgrid scale stresses in the near wall region is captured accurately by the dynamic LANS-$α$ model. The dynamic LANS-$α$ model has the potential to extend the applicability of the LANS-$α$ equations to more complicated anisotropic flows.
description: 17 pages, 17 figures
The high-redshift Universe with Spitzer
Creators: name: Bradač, Maruša
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: When did galaxies start forming stars? What is the role of distant galaxies in galaxy formation models and the epoch of reionization? What are the conditions in typical star-forming galaxies at redshifts >~4? Why is galaxy evolution dependent on environment? The Spitzer Space Telescope has been a crucial tool for addressing these questions. Accurate knowledge of stellar masses, ages and star formation rates requires measuring rest-frame optical (and ultraviolet) light, which only Spitzer can probe at high redshifts for a sufficiently large sample of typical galaxies. Many of these science goals are the main science drivers for the James Webb Space Telescope, and Spitzer afforded us their first exploration.
description: Nature Astronomy Review Article
Decentralized Gaussian Filters for Cooperative Self-localization and Multi-target Tracking
Creators: name: Sharma, Pranay
name: Saucan, Augustin-Alexandru
name: Bucci, Donald J.
name: Varshney, Pramod K.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Signal Processing (eess.SP)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Scalable and decentralized algorithms for Cooperative Self-localization (CS) of agents, and Multi-Target Tracking (MTT) are important in many applications. In this work, we address the problem of Simultaneous Cooperative Self-localization and Multi-Target Tracking (SCS-MTT) under target data association uncertainty, i.e., the associations between measurements and target tracks are unknown. Existing CS and tracking algorithms either make the assumption of no data association uncertainty or employ a hard-decision rule for measurement-to-target associations. We propose a novel decentralized SCS-MTT method for an unknown and time-varying number of targets under association uncertainty. Marginal posterior densities for agents and targets are obtained by an efficient belief propagation (BP) based scheme while data association is handled by marginalizing over all target-to-measurement association probabilities. Decentralized single Gaussian and Gaussian mixture implementations are provided based on average consensus schemes, which require communication only with one-hop neighbors. An additional novelty is a decentralized Gibbs mechanism for efficient evaluation of the product of Gaussian mixtures. Numerical experiments show the improved CS and MTT performance compared to the conventional approach of separate localization and target tracking.
description: 16 pages, 7 figures
C-loops: extensions and constructions
Creators: name: Kinyon, Michael K.
name: Phillips, J. D.
name: Vojtěchovský, Petr
Publisher: name: arXiv
Year: 2004
Subjects: subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 20N05

description: C-loops are loops satisfying the identity $x(y\cdot yz) = (xy\cdot y)z$. We develop the theory of extensions of C-loops, and characterize all nuclear extensions provided the nucleus is an abelian group. C-loops with central squares have very transparent extensions; they can be built from small blocks arising from the underlying Steiner triple system. Using these extensions, we decide for which abelian groups $K$ and Steiner loops $Q$ there is a nonflexible C-loop $C$ with center $K$ such that $C/K$ is isomorphic to $Q$. We discuss possible orders of associators in C-loops. Finally, we show that the loops of signed basis elements in the standard real Cayley-Dickson algebras are C-loops.
description: 17 pages, amsart
eBay users form stable groups of common interest
Creators: name: Reichardt, Joerg
name: Bornholdt, Stefan
Publisher: name: arXiv
Year: 2005
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Market segmentation of an online auction site is studied by analyzing the users' bidding behavior. The distribution of user activity is investigated and a network of bidders connected by common interest in individual articles is constructed. The network's cluster structure corresponds to the main user groups according to common interest, exhibiting hierarchy and overlap. Key feature of the analysis is its independence of any similarity measure between the articles offered on eBay, as such a measure would only introduce bias in the analysis. Results are compared to null models based on random networks and clusters are validated and interpreted using the taxonomic classifications of eBay categories. We find clear-cut and coherent interest profiles for the bidders in each cluster. The interest profiles of bidder groups are compared to the classification of articles actually bought by these users during the time span 6-9 months after the initial grouping. The interest profiles discovered remain stable, indicating typical interest profiles in society. Our results show how network theory can be applied successfully to problems of market segmentation and sociological milieu studies with sparse, high dimensional data.
description: Major revision of the manuscript. Methodological improvements and inclusion of analysis of temporal development of user interests. 19 pages, 12 figures, 5 tables
Spin Hall Effect in Bilayer Graphene Combined with an Insulator up to Room Temperature
Creators: name: Safeer, C. K.
name: Ingla-Aynés, Josep
name: Ontoso, Nerea
name: Herling, Franz
name: Yan, Wenjing
name: Hueso, Luis E.
name: Casanova, Fèlix
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Spin-orbit coupling in graphene can be enhanced by chemical functionalization, adatom decoration or proximity with a van der Waals material. As it is expected that such enhancement gives rise to a sizeable spin Hall effect, a spin-to-charge current conversion phenomenon of technological relevance, it has sparked wide research interest. However, it has only been measured in graphene/transition metal dichalcogenide van der Waals heterostructures with limited scalability. Here, we experimentally demonstrate spin Hall effect up to room temperature in bilayer graphene combined with a nonmagnetic insulator, an evaporated bismuth oxide layer. The measured spin Hall effect raises most likely from an extrinsic mechanism. With a large spin-to-charge conversion efficiency, scalability, and ease of integration to electronic devices, we show a promising material heterostructure suitable for spin-based device applications.
description: 12 pages, 4 figures, supporting information
Metal Enrichment of the Intergalactic Medium and Production of Massive Black Holes
Creators: name: Qian, Y. -Z.
name: Wasserburg, G. J.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: A model for the chemical evolution of the intergalactic medium (IGM) is presented using theoretical yields of very massive stars (VMSs) and Type II supernovae (SNe II). It is shown that if [Si/C] is indeed as high as ~0.7 in the IGM, then VMSs associated with pair-instability supernovae (PI-SNe) in low-mass halos at high redshift must produce at least 50% of the Si. The remainder is from later galactic outflows of SN II debris, which also provide most of the C and O. Both sources are required to account for the metal inventory in the IGM. The early VMS production must continue until redshift z~15 so that the efficiency of VMS formation per low-mass halo is significantly below unity. Contributions from the later galactic outflows mainly occur at z~4-6. Using a Salpeter initial mass function, we infer that the number of VMSs producing massive black holes (MBHs) is 0.72 times the the number of VMSs associated with PI-SNe. The amount of metals (particularly Si) in the IGM that is attributable to PI-SNe is thus closely coupled with the total mass of MBHs produced in epochs prior to galaxy formation. Production of ~50% of the Si in the IGM by PI-SNe corresponds to an early inventory of MBHs that is comparable to the global mass budget of the central supermassive black holes in present-day galaxies. (Abridged)
description: 21 pages, 2 figures, to appear in ApJ (two references added in v2)
Controlling valley splitting and Polarization of dark- and bi-excitons in monolayer WS$_2$ by a tilted magnetic field
Creators: name: Qu, Fanyao
name: Bragança, Helena
name: Vasconcelos, Railson
name: Liu, Fujun
name: Xie, S-J
name: Zeng, Hao
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: We developed a comprehensive theoretical framework focusing on many-body effects of exciton species in monolayer WS$_2$, including bright and dark excitons, and intra- and inter-valley biexcitons, to investigate valley dynamics in monolayer WS$_2$ subjected to a tilted magnetic field B. In particular, the evolution of the exciton population densities and the many-body particle scatterings are considered to calculate the valley polarization (V P ) as a function of the magnetic field. We found valley splittings for the dark exciton and biexciton energy levels that are larger than those of bright excitons, of -0.23 meV/T. For example, -0.46 meV/T for dark excitons and -0.69 meV/T for bright-dark intra-valley biexcitons. Furthermore, inter-valley bright-dark excitons have an opposite valley energy splittings of +0.23 meV/T. For the samples pumped by linearly polarized light, V P exhibits distinct magnetic field dependence for different types of many-body particle states. Among them, the V P of the intra-valley bright-dark biexcitons increases with increasing magnetic field and reaches nearly 50% at B=65 T. The brightened dark exciton, on the other hand, exhibits vanishing VP, indicating long valley relaxation time. Remarkably, the inter-valley bright-dark biexciton shows unconventional behavior with an inverted VP. The opposite VP for intra- and inter-valley bright-dark biexcitons, coupled with their large valley splitting and long valley lifetime may facilitate their coherent manipulation for quantum computing.
Measurement of F_2^ccbar and F_2^bbbar at High Q^2 using the H1 Vertex Detector at HERA
Creators: name: H1 Collaboration
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Measurements are presented of inclusive charm and beauty cross sections in e^+p collisions at HERA for values of photon virtuality Q^2 > 150 GeV^2 and of inelasticity 0.1 < y < 0.7. The charm and beauty fractions are determined using a method based on the impact parameter, in the transverse plane, of tracks to the primary vertex, as measured by the H1 vertex detector. The data are divided into four regions in Q^2 and Bjorken x, and values for the structure functions F_2^{c\bar{c}} and F_2^{b\bar{b}} are obtained. The results are found to be compatible with the predictions of perturbative quantum chromodynamics.
description: 25 pages, 9 figures and 2 tables
பெரியபுராணம் காட்டும் திருநீலகண்ட நாயனாரின் பக்திநெறி
Creators: name: Kala, Sree
Publisher: name: figshare
Year: 2020
Subjects: subject: 200315 Indian Languages
subject: FOS: Languages and literature
subject: 200520 Indian Literature

description: தமிழ்மண்ணில் பிறந்த பக்திநெறி தழைக்கச்செய்த நூல்பெரியபுராணம் தில்லையில் வாழ்ந்த அந்தணர்களில் ஒருவரான நீலகண்டனார் குயவர் மரபினைச்சார்ந்தவர் பொய்யை ஒழித்து அறநெறியில் வாழ்பவர் சிவ அடியவர்களுக்கு பணிவிடைகள் செய்து வாழ்பவர் இறைவனே சோதித்த போதும் தன் பக்திநிலையிலிருந்து மாறாதவர்.