cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Space density of optically-selected type 2 quasars
Creators: name: Reyes, Reinabelle
name: Zakamska, Nadia L.
name: Strauss, Michael A.
name: Green, Joshua
name: Krolik, Julian H.
name: Shen, Yue
name: Richards, Gordon
name: Anderson, Scott
name: Schneider, Donald
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Type 2 quasars are luminous active galactic nuclei (AGN) whose central regions are obscured by large amounts of gas and dust. In this paper, we present a catalog of type 2 quasars from the Sloan Digital Sky Survey (SDSS), selected based on their optical emission lines. The catalog contains 887 objects with redshifts z < 0.83; this is six times larger than the previous version and is by far the largest sample of type 2 quasars in the literature. We derive the [OIII]5008 luminosity function for 10^8.3 Lsun < L[OIII] < 10^10 Lsun (corresponding to intrinsic luminosities up to M[2400A]-28 mag or bolometric luminosities up to 4x10^47 erg/sec). This luminosity function provides strong lower limits to the actual space density of obscured quasars, due to our selection criteria, the details of the spectroscopic target selection, as well as other effects. We derive the equivalent luminosity function for the complete sample of type 1 (unobscured) quasars; then, we determine the ratio of type 2/type 1 quasar number densities. Our best data constrain this ratio to be at least 1.5:1 for 10^8.3 Lsun < L[OIII] < 10^9.5 Lsun at z < 0.3, and at least 1.2:1 for L[OIII]=10^10 Lsun at 0.3 < z < 0.83. Type 2 quasars are at least as abundant as type 1 quasars in the relatively nearby Universe (z < 0.8) for the highest luminosities.
description: Corrected Fig. 12, for details see published erratum (2010, AJ, 139, 1295-1296)
Althausen, Johannes (Hrsg.), Christen Afrikas auf dem Wege zur Freiheit
Creators: name: Schnellbach, Jörg
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 21 Nr. 4 (1972): Ökumenische Rundschau, Band 21, Heft 4
MARKET INSTITUTIONS, TRANSACTION COSTS, AND SOCIAL CAPITAL IN THE ETHIOPIAN GRAIN MARKET
Creators: name: Gabre-Madhin, Eleni Z.
name: Gabre-Madhin, Eleni Z.
Publisher: name: Unknown
Year: 2001
Subjects: Institutional and Behavioral Economics

description: This report addresses the overarching question regarding the role of institutions in enhancing market development following market reforms. It uses the New Institutional Economics framework to empirically analyze the role of a specific market institution, that of brokers acting as intermediaries to match traders in the Ethiopian grain market in reducing the transaction costs of search faced by traders. Brokers play a key role in facilitating exchange in a weak marketing environment where limited public market information, the lack of grain standardization, oral contracts, and weak legal enforcement of contracts increase the risk of contract failure. Relying on primary data, it analyzes traders' microeconomic behavior, social capital, the nature and extent of their transaction costs, and the norms and rules governing the relationship between brokers and traders. The study uses an innovative approach to quantify the costs of search and demonstrates that the brokerage institution is economically efficient both for individual traders and for global economic welfare.
Additional file 1 of BG-flow, a new flow cytometry tool for G-quadruplex quantification in fixed cells
Creators: name: Magis, Alessio De
name: Kastl, Melanie
name: Brossart, Peter
name: Annkristin Heine
name: Paeschke, Katrin
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 1: Figure S1. BG-flow is suitable for HeLa cells. a) HeLa cells gated for granularity (side scatter – SSC) and size (forward scatter - FSC). b) Labeling of untreated HeLa cells or cells incubated 24 h with 1 μM or 10 μM PDS with the BG4 antibody (green) and DAPI (blue). Scale bar: 10 μm. c) Distribution plot of the BG4 signal in HeLa cells unstained with BG4 (red), untreated (cyan) or incubated 24 h with 1 μM (green) or 10 μM (orange) PDS. d) Histogram plot of the BG4 signal in untreated HeLa cells (white) and cells incubated 24 h with 1 μM (gray) or 10 μM (black) PDS and fixed with PFA. e) Histogram plot of the BG4 signal in HeLa cells, fixed with PFA, unstained with BG4 (white), untreated (gray) or incubated 24 h with 10 μM PDS (black).
Larnax pedrazae S. Leiva & Barboza 2009
Creators: name: Deanna, Rocío
name: González, Segundo Leiva
name: Barboza, Gloria E.
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Solanales
Solanaceae
Larnax
Larnax pedrazae

description: Larnax pedrazae S. Leiva & Barboza (2009: 14)
Lectotype (designated here):—Leiva González, Bravi & Barboza, Arnaldoa 16(2): 16. Fig. 1. 2009.
Additional material examined: — PERU. Amazonas: Bagua, La Peca, puente El Arenal, camino La Peca-Arenal, borde de río, 1085 m, 5°36’03.6’’S 78°24’32.9’’W, 22 July 2012 (fl, fr), Deanna & Leiva 47 (CORD 00006784!, HAO!); Puente El Arenal, a 3km camino La Peca-Arenal, borde de riachuelo, 1085 m, 5°36’03.6’’S 78°24’32.9’’W, 15 January 2013 (fl), Deanna & Leiva 79 (CORD!; Fig. 15 B–E).
This lectotypification is due to the fact that the duplicates were not distributed prior to the HAO fire and so were destroyed at the same time as the holotype. The lectotype designated here is the illustration in the protologue (art. 9.12, ICN 2012), Fig. 15A, which is of high quality and allow the species to be identified unambiguously. Topotypes are cited because it was possible to collect the species again at the original collection locality.
description: Published as part of Deanna, Rocío, González, Segundo Leiva & Barboza, Gloria E., 2014, Four new species and eighteen lectotypifications of Larnax from Ecuador and Peru and a new synonym of Deprea orinocensis (Solanaceae: Solanoideae, Physalideae), pp. 1-34 in Phytotaxa 167 (1) on page 25, DOI: 10.11646/phytotaxa.167.1.1, http://zenodo.org/record/5153819
Direct Detection of Extra-Solar Comets is Possible
Creators: name: Jura, M.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The dust tails of comets similar to Hale-Bopp can scatter as much optical light as does the Earth. Space-based observatories such as the Terrestrial Planet Finder or Darwin that will detect extra-solar terrestrial planets also will be able to detect extra-solar comets.
description: 17 pages, 4 figures, AJ, in press
Reward Systems, Positive Behavior Interventions, and Student Achievement
Creators: name: Luzier, Chad
Publisher: name: Maryland Shared Open Access Repository
Year: 2013
Subjects: subject: Education -- Research papers (Graduate)

description: This study was designed to determine the impact of a School-Wide Positive Behavior Intervention (SWPBIS) reward system on student achievement. The study utilized a quasi-experimental design to determine the impact of a PBIS reward system on student achievement. The dependent variable in this study was the level of student achievement as measured by the third quarter math topic tests provided by Anne Arundel County Public Schools. In this study the independent variable was the “tiger tickets” given as a means of positive reinforcement for positive behaviors exhibited. The participants in this research were 32 fourth-grade students ranging in age from nine to ten years old from an elementary school located in Central Maryland.
This study implies that the number of times students are rewarded for positive behavior may or may not have a statistically significant influence upon the students’ math test scores based on students’ race/ethnicity. Achievement gains were slightly higher in low performing students, especially those of African American heritage. These students demonstrated both statistically and educationally significant growth on the math assessment throughout this study.
Intervention Methods for Struggling Intermediate Grade Students
Creators: name: Quintern, Pamela D.
Publisher: name: Maryland Shared Open Access Repository
Year: 2013
Subjects: subject: Education -- Research papers (Graduate)

description: The purpose of this study was to examine the impact of computer programs on the mathematics
content and skills of third grade students who have difficulty with mathematics; such students
might profit from additional tutoring and interventions utilizing technology. Amongst students
participating in study achievement scores demonstrated a mean overall increase of 10.65 points.
This study strongly suggests student’s skills in mathematical achievement can be strengthened
through the utilization of the computer programs combined with the added support during
completion of homework.
Stability of regular black holes and other compact objects with a charged de Sitter core and a surface matter layer
Creators: name: Masa, Angel D. D.
name: de Oliveira, Enesson S.
name: Zanchin, Vilson T.
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The stability and other physical properties of a class of regular black holes, quasiblack holes, and other electrically charged compact objects are investigated in the present work. The compact objects are obtained by solving the Einstein-Maxwell system of equations assuming spherical symmetry in a static spacetime. The spacetime is split in two regions by a spherical surface of coordinate radius $a$. The interior region contains a nonisotropic charged fluid with a de Sitter type equation of state, $p_r = -ρ_m$, $p_r$ and $ρ_m$ being respectively the radial pressure and the energy density of the fluid. The charge distribution is chosen as a well behaved power-law function. The exterior region is the electrovacuum Reissner-Nordström metric, which is joined to the interior metric through a spherical thin shell (a thin matter layer) placed at the radius $a$. The matter of the shell is assumed to be a perfect fluid satisfying a linear barotropic equation of state, ${\cal P}=ωσ$, with ${\cal P}$ and $σ$ being respectively the pressure and energy density of the shell, with $ω$ being a constant. The exact solutions obtained are analyzed in some detail by exploring the interesting regions of parameter space, complementing the analysis of previous works on similar models. This is the first important contribution of the present study. The stability of the solutions are then investigated considering perturbations around the equilibrium position of the shell. This is the second and the most important contribution of this work. We find that there are stable objects in relatively large regions of the parameter space. In particular, there are stable regular black holes for all values of the parameter $ω$ of interest. Other stable ultracompact objects as quasiblack holes, gravastars, and even overcharged stars are allowed in certain regions of the parameter space.
description: 25 pages, 18 figures (reduced from 27 figures/first version of the manuscript), new references added
Facing the Development Challenge in Mozambique: An Economywide perspective
Creators: name: Tarp, Finn
name: Jensen, Henning Tarp
name: Arndt, Channing
name: Robinson, Sherman
name: Herlberg, Rasmus
name: Tarp, Finn
name: Jensen, Henning Tarp
name: Arndt, Channing
name: Robinson, Sherman
name: Herlberg, Rasmus
Publisher: name: Unknown
Year: 2002
Subjects: International Development

description: This study responds to some of Mozambique's basic development challenges and provides qualitative and quantitative insights for policymaking from an economywide perspective. The report highlights the importance of agricultural development showing agriculture's large sectoral multiplier effects and that applying scarce capital to agriculture is generally more effective than applying it to industry and services. A novel CGE model is developed and used in a series of analyses focused on the impact and design of economic policy. Issues addressed are aid dependency, biases in price incentives facing the agriculture sector, improvement in agricultural technology and marketing margins, risk-reducing behavior and gender roles in agricultural production, and food aid distribution. The study also provides a future perspective and analyzes the Mozambican economy using dynamic macroeconomic modeling techniques, demonstrating that sophisticated analytical tools can be of significant value, even in "data-poor" situations.
Equal-Spin Pairing State of Superfluid $^3$He in Aerogel
Creators: name: Aoyama, Kazushi
name: Ikeda, Ryusuke
Publisher: name: arXiv
Year: 2005
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The equal-spin pairing (ESP) state, the so-called A-like phase, of superfluid $^3$He in aerogels is studied theoretically in the Ginzburg-Landau (GL) region by examining thermodynamics, and the resulting equilibrium phase diagram is mapped out. We find that, among the ABM, planar, and robust pairing states, the ABM state with presumably quasi long-ranged superfluid order is the best candidate of the A-like phase with a strange lowering of the polycritical point (PCP) observed experimentally.
description: 4 pages, 1 figure, one reference added, accepted for publication in Phys. Rev. B
A Matter of Time: The Effects of Block Scheduling on the Academic Achievement of Secondary School Students in the District of Columbia
Creators: name: Rhodes, Thomas J.
Publisher: name: Maryland Shared Open Access Repository
Year: 2013
Subjects: subject: Education -- Research papers (Graduate)

description: This historical study analyzes the relative effectiveness of traditional scheduling, 4X4 block scheduling (4X4), and alternate day block (A/B) scheduling in three different schools governed by District of Columbia Public Schools (DCPS) system as measured by SAT, AP Exam, and DC CAS performances. A random sample of 1,389 from three different DCPS schools representing three scheduling types from 2007-2012 was drawn. ANOVA was run to determine mean performance levels for student performance at each school for each metric. An additional test was run to compare means from 8th and 10th grade DC CAS data for the 2011 cohorts at each of the three schools. Analysis of overall performance means distinctly favors the A/B scheduling model. However, comparative analysis of 8th and 10th grade DC CAS data for the 2011 cohort favors the 4X4 model. The results of this study are nebulous at best. A larger sample size and consideration of additional factors would likely allow researchers to better analyze the implications of this research.
Insights on magnon topology and valley-polarization in 2D bilayer quantum magnets
Creators: name: Ghader, Doried
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The rich and unconventional physics in layered 2D magnets can open new avenues for topological magnonics and magnon valleytronics. In particular, two-dimensional (2D) bilayer quantum magnets are gaining increasing attention due to their intriguing stacking-dependent magnetism, controllable ground states, and topological excitations induced by magnetic spin-orbit couplings (SOCs). Despite the substantial research on these materials, their topological features remain widely unexplored to date. The present study comprehensively investigates the magnon topology and magnon valley-polarization in honeycomb bilayers with collinear magnetic order. We elucidate the separate and combined effects of the SOC, magnetic ground-states, stacking order, and inversion symmetry breaking on the topological phases, magnon valley transport, and the Hall and Nernst effects. The comprehensive analysis suggests clues to determine the SOC's nature and predicts unconventional Hall and Nernst conductivities in topologically trivial phases. We further report on novel bandgap closures in layered antiferromagnets and detail their topological implications. We believe the present study provides important insights into the fundamental physics and technological potentials of topological 2D magnons.
THE 1998 FLOODS IN BANGLADESH: DISASTER IMPACTS, HOUSEHOLD COPING STRATEGIES, AND RESPONSE
Creators: name: Del Ninno, Carlo
name: Dorosh, Paul A.
name: Smith, Lisa C.
name: Roy, Dilip
name: Del Ninno, Carlo
name: Dorosh, Paul A.
name: Smith, Lisa C.
name: Roy, Dilip
Publisher: name: Unknown
Year: 2001
Subjects: Resource /Energy Economics and Policy

description: In 1998,the flood of the century covered more than two-thirds of Bangladesh, causing crop losses of 2.04 million tons of rice, an amount equal to 10.45 percent of target production in 1998/99. This flood threatened the health and lives of millions through food shortages caused by crop failure, loss of purchasing power, and the spread of water-borne disease. Yet very few flood-related deaths occurred, and reportedly none was due to food shortages. This report, based on data from a survey of 757 rural households in seven flood-affected regions (thanas) conducted in November and December 1998 and on analysis of secondary data on food grain markets, describes how Government of Bangladesh policy, well-functioning private markets, household coping strategies, and donor and NGO interventions combined to avert a major food crisis. To further enhance its food security, Bangladesh needs continued investments in agricultural research, extension, roads, electricity and other rural infrastructure, policies promoting efficient markets, and programs to provide targeted transfers and credit to poor households.
Additional file 2 of BG-flow, a new flow cytometry tool for G-quadruplex quantification in fixed cells
Creators: name: Magis, Alessio De
name: Kastl, Melanie
name: Brossart, Peter
name: Annkristin Heine
name: Paeschke, Katrin
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 2: Figure S2. Human monocytes showed increased G4 levels after PDS treatment. a) THP-1 cells gated for granularity (side scatter – SSC) and size (forward scatter - FSC) b) Cell vitality determined by MTT assay in THP-1 cells treated with different concentration of PDS. Graph shows the % of vitality compared to untreated control (100%). Average of N = 3 biologically independent experiments is plotted ± SD c) Distribution plot of the FL1-BG4 signal in THP-1 cells unstained with BG4 (red), untreated (cyan) or treated 24 h with 25 μM (green) or 50 μM (orange) PDS.
Additional file 3 of BG-flow, a new flow cytometry tool for G-quadruplex quantification in fixed cells
Creators: name: Magis, Alessio De
name: Kastl, Melanie
name: Brossart, Peter
name: Annkristin Heine
name: Paeschke, Katrin
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 3: Figure S3. MCF-7 cells showed higher BG4 signal in S/G2 phase. a) MCF-7 cells gated for granularity (side scatter – SSC) and size (forward scatter – FSC). b) Distribution plot of the BG4 signal in MCF-7 cells unstained (red) or stained with BG4 (cyan).
Dynamic Compressibility and aging in Wigner crystals and quantum glasses
Creators: name: Cugliandolo, L. F.
name: Giamarchi, T.
name: Doussal, P. Le
Publisher: name: arXiv
Year: 2005
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study the non-equilibrium linear response of quantum elastic systems pinned by quenched disorder with Schwinger-Keldysh real-time techniques complemented by a mean-field variational approach. We find (i) a quasi-equilibrium regime in which the analytic continuation from the imaginary-time replica results holds provided the marginality condition is enforced; (ii) an aging regime. The conductivity and compressibility are computed. The latter is found to cross over from its dynamic to static value on a scale set by the waiting time after a quench, an effect which can be probed in experiments in {\it e.g.} Wigner glasses.
BCS $d$-wave behavior in the THz electrodynamic response of electron-doped cuprate superconductors
Creators: name: Tagay, Zhenisbek
name: Mahmood, Fahad
name: Legros, Anaelle
name: Sarkar, Tarapada
name: Greene, Richard L.
name: Armitage, N. P.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Although cuprate superconductors have been intensively studied for the past decades, there is no consensus regarding the microscopic origin of their superconductivity. In this work, we measure the low-energy electrodynamic response of slightly underdoped and overdoped La$_{2-x}$Ce$_x$CuO$_4$ thin films using time-domain terahertz (THz) spectroscopy to determine the temperature and field dependence of the superfluid spectral weight. We show that the temperature dependence obeys the relation \textit{n$_s$} $\propto$ $1-(T/T_c)^2$, typical for dirty limit BCS-like $d$-wave superconductors. Furthermore, the magnetic field dependence was found to follow a sublinear $\sqrt{B}$ form, which supports predictions based on a $d$-wave symmetry for the superconducting gap. These observations imply that the superconducting order in these electron-doped cuprates can be well described in terms of a disordered BCS $d$-wave formalism.
description: 6 pages, 5 figures
Additional file 4 of BG-flow, a new flow cytometry tool for G-quadruplex quantification in fixed cells
Creators: name: Magis, Alessio De
name: Kastl, Melanie
name: Brossart, Peter
name: Annkristin Heine
name: Paeschke, Katrin
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 4: Figure S4. BG-Flow is suitable for Human PBMCs. a) PBMC Cells gated for granularity (side scatter – SSC) and size (forward scatter - FSC) b) Distribution plot of the BG4 signal in PBMCs extracted from an AML patient, unstained (red) or stained with BG4 (cyan).
p-forms on d-spherical tessellations
Creators: name: Dowker, J. S.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Spectral Theory (math.SP)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: The spectral properties of p-forms on the fundamental domains of regular tesselations of the d-dimensional sphere are discussed. The degeneracies for all ranks, p, are organised into a double Poincare series which is explicitly determined. In the particular case of coexact forms of rank (d-1)/2, for odd d, it is shown that the heat--kernel expansion terminates with the constant term, which equals (-1)^{p+1}/2 and that the boundary terms also vanish, all as expected. As an example of the double domain construction, it is shown that the degeneracies on the sphere are given by adding the absolute and relative degeneracies on the hemisphere, again as anticipated. The eta invariant on a fundamental domain is computed to be irrational. The spectral counting function is calculated and the accumulated degeneracy give exactly. A generalised Weyl-Polya conjecture for p-forms is suggested and verified.
description: 23 pages. Section on the counting function added
A study of the second-language socialization of university-level students : a developmental pragmatics perspective
Creators: name: Matsumura, Shoichi
Publisher: name: University of British Columbia
Year: 2009

description: The present study focused on changes over time in university-level Japanese students' sociocultural perceptions of social status during their year abroad in Canada, and the impact of such altered perceptions on their perceptions at subsequent time points. The sociocultural perception to be examined was perceived "social status" which Brown and Levinson (1987) discussed as a contributory factor in the perception of social asymmetry, power and authority. The study attempted to examine (1) whether (and to what extent) Japanese students, before they came to study in Canada, had recognized English native speakers' understanding of social status and had learned how to offer advice appropriately in English to individuals of various social statuses, (2) what proportion of differential pragmatic development among Japanese students in Canada was accounted for by their English proficiency and amount of exposure to English, and (3) whether (and to what extent) living and studying in Canada facilitated Japanese students' pragmatic development, which was assessed by the degree of approximation to native speech act behavior in various advice-giving situations repeated during the course of an academic year. To this end, the study compared the development of Japanese exchange students' pragmatic competence during their year abroad in Canada with peers in Japan who did not undertake a year abroad.
The Effects of an After School Literacy Program on Academic Achievement
Creators: name: Kauffman, Claudine
Publisher: name: Maryland Shared Open Access Repository
Year: 2013
Subjects: subject: Education -- Research papers (Graduate)

description: The purpose of this study was to determine whether an after-school literacy program would increase reading comprehension scores of low-performing, high-poverty Title I students compared to low-performing non-Title I students who did not participate in an after-school literacy program. The results of this study indicate that there was a significant difference in the reading comprehension performance of Title I students who participated the after-school literacy program and the non-Title I students who did not participate. Further research is needed to determine if this would be beneficial for the Title I students who would participate in the after-school literacy the program year-round and not just for the six week session.
Additional file 5 of BG-flow, a new flow cytometry tool for G-quadruplex quantification in fixed cells
Creators: name: Magis, Alessio De
name: Kastl, Melanie
name: Brossart, Peter
name: Annkristin Heine
name: Paeschke, Katrin
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 5: Figure S5. BG-Flow is suitable for mouse macrophages. a) Mouse macrophages gated for granularity (side scatter – SSC) and size (forward scatter - FSC). b) Cell vitality as determined by a MTT assay in mouse macrophages treated with different concentration of PDS. Graph shows the % of vitality compared to untreated control (100%). Average of n = 3 biologically independent experiments are plotted ± SD. c) Distribution plot of the FL1-BG4 signal in macrophages unstained with BG4 (red), untreated (cyan) or treated 4 h with 7 μM (green) or 25 μM (orange) PDS.
The Relationship between Student Involvement in Extracurricular Sports and Scores on Benchmark Tests in Core Classes
Creators: name: Peddicord, Benjamin
Publisher: name: Maryland Shared Open Access Repository
Year: 2013
Subjects: subject: Education -- Research papers (Graduate)

description: The purpose of this study was to investigate the relationship between student involvement in extracurricular athletics and student achievement on benchmark exams in core classes. This study was a causal comparative study which tracked groups of eighth-grade students and used their scores on state-standard aligned benchmark exams to measure academic achievement. The groups were divided into students who participated in extracurricular athletics and those who were nonparticipants. The hypothesis was made that students involved in extracurricular sports activities would not have higher scores on benchmark tests in core classes than those students who were not involved in extracurricular sports. Using the benchmark scores and a t test for the samples, it was found that students who participated in extracurricular sports showed significantly higher scores in social studies, mathematics, and the average benchmark scores overall. Students who participated in extracurricular athletics scored higher in all classes but the classes mentioned above were the only ones with significant data. The hypothesis that students involved in extracurricular sports activities would not have higher scores on benchmark tests in core classes than those students who were not involved in extracurricular sports was not supported. Further research is warranted to determine the impacts of such things as the involvement of a coach or mentor and if a team mentality provides peer motivation to be successful in academic courses.
Open Pharma: status update Oct–Dec 2021
Creators: name: Ounsworth, Francesca
name: Edgell, Caitlin
name: Rosenberg, Adeline
Publisher: name: Open Pharma
Year: 2021
Subjects: subject: Science Policy
subject: Health Care
subject: 111599 Pharmacology and Pharmaceutical Sciences not elsewhere classified
subject: FOS: Clinical medicine

description: This has been a busy quarter for Open Pharma, with several exciting research projects taking place and plenty of fantastic ideas for the new year.
Reading Strategies and Their Impact on Student Achievement for Level I ESOL Students
Creators: name: Goldring, DuWyn M.
Publisher: name: Maryland Shared Open Access Repository
Year: 2013
Subjects: subject: Education -- Research papers (Graduate)

description: The purpose of this study was to determine whether the use of reading strategies would increase
student achievement for Level I ESOL students. This study was quasiexperimental and used a
pretest/posttest design. The independent variable in this study was the various reading strategies
such as graphic organizers, word walls, and pictures. The dependent variable for this study was
the grade achieved on pre- and post-Unit 5 indicator tests. A dependent t-test was run to
determine whether there was a significant difference in Unit 5 indicator assessment scores from
pretest to posttest. Results showed no significant difference between the two tests. If this study
were to be replicated, it would benefit from the addition of using a larger sample, incorporating
data from multiple schools that have ESOL I students. This study would benefit from additional
research in using curriculums other than just social studies. Finally, the study should be
replicated after providing additional professional development in the area of teaching Level I
ESOL students. The data of this research did not offer the positive outcome that was desired.
However, it provides useful conclusions and opportunities for both the Level I ESOL student and
his/her teachers. It opens the door for future discussions, research, and much-needed debate on
how best to help ESOL students be successful in American classrooms.
INFORMATIKA OʻQITISH METODIKASI FANIDAN KEYSLARNI QO'LLANISHI VA UNING AHAMIYATI
Creators: name: Raxmonov, Mirzoxidjon
Publisher: name: Zenodo
Year: 2024

description: Ushbu maqolada keys texnolgiyasining ta’limda qo’llanishi, keys turlari, ularni ko’llash yordamida talabalarning ijodiy, mantiqish fikrlashlari, jamoada ishlash ko’nikmalarini shakllantirish bayon etilgan.
Hund's coupling-assisted ferromagnetic percolation transition in a multiorbital flat band
Creators: name: Bobrow, Eric
name: Zhang, Junjia
name: Li, Yi
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: By connecting Hund's physics with flat band physics, we establish an exact result for studying ferromagnetism in a multiorbital system. We consider a two-layer model consisting of a $p_x$, $p_y$-orbital honeycomb lattice layer and an $f$-orbital triangular lattice layer with sites aligned with the centers of the honeycomb plaquettes. The system features a flat band that admits a percolation representation for an appropriate chemical potential difference between the two layers. In this representation, the ground state space is spanned by maximum-spin clusters of localized single-particle states, and averaging over the ground states yields a correlated percolation problem with weights due to the spin degeneracy of the clusters. A paramagnetic-ferromagnetic transition occurs as the band approaches half filling and the ground states become dominated by states with a large maximum-spin cluster, as shown by Monte Carlo simulation.
The Effect of a Verbal De-escalation Crisis Intervention Program on the Self Awareness of Middle School Students in a Behavior Learning Support Self-Contained Classroom
Creators: name: Parker, Evan W.
Publisher: name: Maryland Shared Open Access Repository
Year: 2013
Subjects: subject: Education -- Research papers (Graduate)

description: The purpose of this study was to create and implement a verbal de-escalation procedural plan
that staff can teach and students can implement in order to cut down on physical restraint in a
Behavior Learning Support (BLS) self-contained classroom for students with behavioral issues.
The study was a quasi-experimental design with a pre-test/post-test assessment strategy. The
purpose was to determine if the students who received elements of a Learned Resourcefulness
curriculum during a social skills class gained self-awareness of what leads to a crisis. Selfawareness
did increase from the results of a pre-survey and post-survey, resulting in the null
hypothesis that self-awareness would not increase, not being supported. Overall, further research
across a larger population is recommended due to the increase in self-awareness.
Andreev-Coulomb Drag in Coupled Quantum Dots
Creators: name: Tabatabaei, S. Mojtaba
name: Sanchez, David
name: Yeyati, Alfredo Levy
name: Sanchez, Rafael
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The Coulomb drag effect has been observed as a tiny current induced by both electron-hole asymmetry and interactions in normal coupled quantum dot devices. In the present work we show that the effect can be boosted by replacing one of the normal electrodes by a superconducting one. Moreover, we show that at low temperatures and for sufficiently strong coupling to the superconducting lead, the Coulomb drag is dominated by Andreev processes, is robust against details of the system parameters and can be controlled with a single gate voltage. This mechanism can be distinguished from single-particle contributions by a sign inversion of the drag current.
description: 6 pages, 4 figures, supplemental material; published version; fixed typos in the SM
The circumstellar matter of type II intermediate luminosity optical transients (ILOTs)
Creators: name: Soker, Noam
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: I find that a 0.1-1Mo outflowing equatorial dusty disk (torus) that the binary system progenitor of an intermediate luminosity optical transient (ILOT) ejects several years to several months before and during the outburst can reduce the total emission to an equatorial observer by two orders of magnitude and shifts the emission to wavelengths of mainly >10mum. This is termed a type II ILOT (ILOT II). To reach this conclusion I use calculations of type II active galactic nuclei and apply them to the equatorial ejecta (disk/torus) of ILOTs II. This reduction in emission can last for tens of years after outburst. Most of the radiation escapes along the polar directions. The attenuation of the emission for wavelengths of <5mum can be more than three orders of magnitudes, and the emission at <2mum is negligible. Jets that the binary system launches during the outburst can collide with polar CSM and emit radiation above the equatorial plane and dust in the polar outflow can reflect emission from the central source. Therefore, during the event itself the equatorial observer might detect an ILOT. I strengthen the previously suggested ILOT II scenario to the event N6946-BH1, where a red giant star disappeared in the visible.
description: Accepted for publication in Research in Astronomy and Astrophysics
Lorenz or Coulomb in Galilean Electromagnetism ?
Creators: name: Rousseaux, Germain
Publisher: name: arXiv
Year: 2005
Subjects: subject: Classical Physics (physics.class-ph)
subject: Physics Education (physics.ed-ph)
subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: Galilean Electromagnetism was discovered thirty years ago by Levy-Leblond & Le Bellac. However, these authors only explored the consequences for the fields and not for the potentials. Following De Montigny & al., we show that the Coulomb gauge condition is the magnetic limit of the Lorenz gauge condition whereas the Lorenz gauge condition applies in the electric limit of Lévy-Leblond & Le Bellac. Contrary to De Montigny & al. who used Galilean tensor calculus, we use orders of magnitude based on physical motivations in our derivation.
description: PDF version
The Effect of Social Stories on the Social Interactions of a Student with ASD in Unstructured School Activities
Creators: name: Piet, Jennifer
Publisher: name: Maryland Shared Open Access Repository
Year: 2013
Subjects: subject: Education -- Research papers (Graduate)

description: The purpose of this study was to determine whether using social stories would impact the social interactions of a student with an autism spectrum disorder (ASD) during unstructured times at school, specifically during centers and lunch. Observations were conducted before, during, and after the intervention to determine the mean frequency with which the student engaged in conversations. Descriptive statistics also were compiled from surveys to determine the quality of the student’s conversations with assigned lunch buddies. The only significant change in the frequency of conversations was between the pre and post phases during center times. Student perceptions of the number of conversations were not always consistent, but their perceptions of the intervention and the quality of conversations were generally quite positive. Conducting future studies over more extended periods of time and using larger samples might help more fully assess the effectiveness and perceptions of using social stories to facilitate social interactions among students with ASD.
Effects of an Extracurricular Program on Math Achievement
Creators: name: LePla, Dustin
Publisher: name: Maryland Shared Open Access Repository
Year: 2013
Subjects: subject: Education -- Research papers (Graduate)

description: The purpose of this study was to determine if participation in an after school extracurricular math program would have on math achievement for middle school students. A test created by Northwest Evaluation Association was the measurement tool. This study involved use of a pretest/posttest intervention design. A pretest was given in September, 2012. The intervention took place for a period of three months, occurring once per week for one hour after school. At the conclusion of the intervention, a posttest was administered to participants. There were no significant achievement gains made. More research in after school programs to increase math achievement is needed.
Entanglement negativity spectrum of random mixed states: A diagrammatic approach
Creators: name: Shapourian, Hassan
name: Liu, Shang
name: Kudler-Flam, Jonah
name: Vishwanath, Ashvin
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The entanglement properties of random pure states are relevant to a variety of problems ranging from chaotic quantum dynamics to black hole physics. The averaged bipartite entanglement entropy of such states admits a volume law and upon increasing the subregion size follows the Page curve. In this paper, we generalize this setup to random mixed states by coupling the system to a bath and use the partial transpose to study their entanglement properties. We develop a diagrammatic method to incorporate partial transpose within random matrix theory and formulate a perturbation theory in $1/L$, the inverse of the Hilbert space dimension. We compute several quantities including the spectral density of partial transpose (or entanglement negativity spectrum), two-point correlator of eigenvalues, and the logarithmic negativity. As long as the bath is smaller than the system, we find that upon sweeping the subregion size, the logarithmic negativity shows an initial increase and a final decrease similar to the Page curve, while it admits a plateau in the intermediate regime where the logarithmic negativity only depends on the size of the system and of the bath but not on how the system is partitioned. This intermediate phase has no analog in random pure states, and is separated from the two other regimes by a critical point. We further show that when the bath is larger than the system by at least two extra qubits the logarithmic negativity is identically zero which implies that there is no distillable entanglement. Using the diagrammatic approach, we provide a simple derivation of the semi-circle law of the entanglement negativity spectrum in the latter two regimes. We show that despite the appearance of a semicircle distribution, reminiscent of Gaussian unitary ensemble (GUE), the higher order corrections to the negativity spectrum and two-point correlator deviate from those of GUE.
description: 26 pages, 10 figures, 5 appendices. A discussion on genus expansion and more data for numerical simulations of spin chains were added
Simultaneous amplitude and phase damping of a kind of Gaussian states and their separability
Creators: name: Chen, Xiao-Yu
Publisher: name: arXiv
Year: 2005
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We give out the time evolution solution of simultaneous amplitude and phase damping for any continuous variable state. For the simultaneous amplitude and phase damping of a wide class of two- mode entangled Gaussian states, two analytical conditions of the separability are given. One is the sufficient condition of separability. The other is the condition of PPT separability where the Peres-Horodecki criterion is applied. Between the two conditions there may exist bound entanglement. The simplest example is the simultaneous amplitude and phase damping of a two-mode squeezed vacuum state. The damped state is non-Gaussian.
description: 7 pages, 1 figure
Close Binary Interactions of Intermediate-Mass Black Holes: Possible Ultra-Luminous X-ray Sources?
Creators: name: Blecha, L.
name: Ivanova, N.
name: Kalogera, V.
name: Belczynski, K.
name: Fregeau, J.
name: Rasio, F.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: While many observed ultra-luminous X-ray sources (ULXs, Lx > 10^39 erg s^-1) could be extragalactic X-ray binaries (XRBs) emitting close to the Eddington limit, the highest-luminosity ULXs (Lx > 3x10^39 erg s^-1) exceed the isotropic Eddington luminosity for even high-stellar-mass accreting black hole XRBs. It has been suggested that these highest-luminosity ULXs may contain accreting intermediate-mass black hole (IMBH) binaries. We consider this hypothesis for dense, young (about 100 Myr) stellar clusters where we assume that a 50-500 solar mass central IMBH has formed through runaway growth of a massive star. Using numerical simulations of the dynamics and evolution of the central black hole's captured companions, we obtain estimates of the incidence of mass transfer phases and possible ULX activity throughout the IMBH's evolutionary history. We find that, although it is common for the central black hole to acquire binary companions, there is a very low probability that these interacting binaries will become observable ULX sources.
description: 11 pages, 8 figures, submitted to ApJ
Margull, Hans Jochen / Samartha, Stanley J., Dialog mit anderen Religionen
Creators: name: Mildenberger, Michael
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 21 Nr. 4 (1972): Ökumenische Rundschau, Band 21, Heft 4
Additional file 1 of Divergent CPEB prion-like domains reveal different assembly mechanisms for a generic amyloid-like fold
Creators: name: Hervás, Rubén
name: Fernández-Ramírez, María Del Carmen
name: Galera-Prat, Albert
name: Suzuki, Mari
name: Nagai, Yoshitaka
name: Bruix, Marta
name: Menéndez, Margarita
name: Laurents, Douglas V.
name: Carrión-Vázquez, Mariano
Publisher: name: figshare
Year: 2021
Subjects: subject: Biophysics
subject: Biochemistry
subject: Cell Biology
subject: Neuroscience
subject: Evolutionary Biology
subject: FOS: Biological sciences

description: Additional file 1: Figures S1-S8 and Supplementary tables 1 and 2. Figure S1- [Sequence analysis of CPEB proteins]. Figure S2 - [CC prediction of ApCPEB PLD]. Figure S3 – [QBP1 interaction with ApCPEB PLD]. Figure S4 - [Nanomechanical analysis of ApCPEB PLD using the “carrier-guest” strategy]. Figure S5 - [Validation of the mechanical protection “carrier-guest” strategy used in AFM-SMFS experiments]. Figure S6 - [Additional data from AFM-SMFS experiments]. Figure S7 - [Association of 20-mer peptides from ApCPEB PLD]. Figure S8 - [Different multimeric ApCPEB PLD species are trapped by AmB and EGCG]. Supplementary Table 1 - [Summary of the AFM-SMFS analysis]. Supplementary Table 2 - [Summary of the oligonucleotides used in this study].
Mapping Machine-Learned Physics into a Human-Readable Space
Creators: name: Faucett, Taylor
name: Thaler, Jesse
name: Whiteson, Daniel
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Physical sciences

description: We present a technique for translating a black-box machine-learned classifier operating on a high-dimensional input space into a small set of human-interpretable observables that can be combined to make the same classification decisions. We iteratively select these observables from a large space of high-level discriminants by finding those with the highest decision similarity relative to the black box, quantified via a metric we introduce that evaluates the relative ordering of pairs of inputs. Successive iterations focus only on the subset of input pairs that are misordered by the current set of observables. This method enables simplification of the machine-learning strategy, interpretation of the results in terms of well-understood physical concepts, validation of the physical model, and the potential for new insights into the nature of the problem itself. As a demonstration, we apply our approach to the benchmark task of jet classification in collider physics, where a convolutional neural network acting on calorimeter jet images outperforms a set of six well-known jet substructure observables. Our method maps the convolutional neural network into a set of observables called energy flow polynomials, and it closes the performance gap by identifying a class of observables with an interesting physical interpretation that has been previously overlooked in the jet substructure literature.
description: 20 pages, 7 figures, 3 tables