cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Star formation and evolution of blister-type H{\sc ii} region Sh2-112
Creators: name: Panwar, Neelam
name: Sharma, Saurabh
name: Ojha, D. K.
name: Baug, Tapas
name: Dewangan, L. K.
name: Bhatt, B. C.
name: Pandey, Rakesh
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We report the observational findings of the Sh2-112 H{\sc ii} region by using the multiwavelength data analysis ranging from optical to radio wavelengths. This region is powered by a massive O8V-type star BD +45 3216. The surface density distribution and minimum spanning tree analyses of the young stellar object (YSO) candidates in the region reveal their groupings toward the western periphery of the H{\sc ii} region. A GMRT radio continuum emission peak is found toward the north-west boundary of the H{\sc ii} region and is investigated as a compact/ultra-compact H{\sc ii} region candidate powered by a B0-B0.5 type star. Toward the south-west direction, a prominent curved rim-like structure is found in the H$α$ image and GMRT radio continuum maps, where the H$_2$ and $^{13}$CO emission is also observed. These results suggest the existence of the ionized boundary layer (IBL) on the surface of the molecular cloud. This IBL is found to be over-pressurized with respect to the internal pressure of the surrounding molecular cloud. This implies that the shocks are propagating/ propagated into the molecular cloud and the young stars identified within it are likely triggered due to the massive star. It is also found that this region is ionization bounded toward the west-direction and density bounded toward the east-direction. Based on the distribution of the ionized gas, molecular material, and the YSO candidates; we propose that the Sh2-112 H{\sc ii} region is a good candidate for the blister-type H{\sc ii} region which has been evolved on the surface of a cylindrical molecular cloud.
description: 18 pages, 9 figures, accepted for publication in the Astrophysical Journal
Solar System tests DO rule out 1/R gravity
Creators: name: Erickcek, Adrienne L.
name: Smith, Tristan L.
name: Kamionkowski, Marc
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Shortly after the addition of a 1/R term to the Einstein-Hilbert action was proposed as a solution to the cosmic-acceleration puzzle, Chiba showed that such a theory violates Solar System tests of gravity. A flurry of recent papers have called Chiba's result into question. They argue that the spherically-symmetric vacuum spacetime in this theory is the Schwarzschild-de Sitter solution, making this theory consistent with Solar System tests. We point out that although the Schwarzschild-de Sitter solution exists in this theory, it is not the unique spherically-symmetric vacuum solution, and it is not the solution that describes the spacetime in the Solar System. The solution that correctly matches onto the stellar-interior solution differs from Schwarzschild-de Sitter in a way consistent with Chiba's claims. Thus, 1/R gravity is ruled out by Solar System tests.
description: 4 pages, no figures. Submitted to PRD Rapid Communications
Verb paradigm elicitation: 'to look after'
Creators: name: Parker, Verdena
name: Spence, Justin
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2022
Subjects: subject: hup

description: Audio file VP-121221-08: Paradigm elicitation for the verb 'to look after', varying aspect/mode and the person and number of subject and object.
Definability of groups in $\aleph_0$-stable metric structures
Creators: name: Yaacov, Itaï Ben
Publisher: name: arXiv
Year: 2008
Subjects: subject: Logic (math.LO)
subject: FOS: Mathematics
subject: 03C45, 03C90

description: We prove that in a continuous $\aleph_0$-stable theory every type-definable group is definable. The two main ingredients in the proof are: \begin{enumerate} \item Results concerning Morley ranks (i.e., Cantor-Bendixson ranks) from \cite{BenYaacov:TopometricSpacesAndPerturbations}, allowing us to prove the theorem in case the metric is invariant under the group action; and \item Results concerning the existence of translation-invariant definable metrics on type-definable groups and the extension of partial definable metrics to total ones. \end{enumerate}
The Relationship between Participation in School-Sponsored Extracurricular Activities, Attendance, and Academic Performance
Creators: name: Girch, Shawn M.
Publisher: name: Maryland Shared Open Access Repository
Year: 2015
Subjects: subject: Attendance
subject: Extracurricular activities
subject: Athletics
subject: Clubs
subject: Participation
subject: Academic performance
subject: GPA
subject: School sponsored
subject: Non-school sponsored
subject: Education -- Research papers (Graduate)

description: The purpose of this study was to determine whether participation of high school
students in extracurricular activities was related to their school attendance and academic
achievement. Data were collected for this study using a questionnaire developed by the
researcher, which focused on topics such as respondents’ activities, time management
and satisfaction with school. The questions, which were open-ended and used Likert
scale ratings, were designed to reflect degrees of satisfaction and agreement related to
school and extracurricular activities. The questionnaire asked students to respond to
items regarding their participation in and feelings about the various activities in which
they participated and to rate or describe the effects of this participation on students’
ability to complete assignments. Overall, data indicated that students who participated in
extracurricular activities exhibited higher levels of academic performance and lower
absenteeism than those who did not do so. Of students who participated in
extracurricular activities, those who participated in school- sponsored activities had a
higher GPA and attendance rate than those students participating in out-of-school
activities.
The rest-frame optical luminosity functions of galaxies at 2
Creators: name: Marchesini, Danilo
name: van Dokkum, Pieter
name: Quadri, Ryan
name: Rudnick, Gregory
name: Franx, Marijn
name: Lira, Paulina
name: Wuyts, Stijn
name: Gawiser, Eric
name: Christlein, Daniel
name: Toft, Sune
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the rest-frame optical (B, V, and R band) luminosity functions (LFs) of galaxies at 22 are consistent with those at z~0. The characteristic magnitudes are significantly brighter than the local values (e.g., ~1.2 mag in the R band), while the measured values for Phi_star are typically ~5 times smaller. The B-band luminosity density at z~2.3 is similar to the local value, and in the R band it is ~2 times smaller than the local value. We present the LF of Distant Red Galaxies (DRGs), which we compare to that of non-DRGs. While DRGs and non-DRGs are characterized by similar LFs at the bright end, the faint-end slope of the non-DRG LF is much steeper than that of DRGs. The contribution of DRGs to the global densities down to the faintest probed luminosities is 14%-25% in number and 22%-33% in luminosity. From the derived rest-frame U-V colors and stellar population synthesis models, we estimate the mass-to-light ratios (M/L) of the different subsamples. The M/L ratios of DRGs are ~5 times higher (in the R and V bands) than those of non-DRGs. The global stellar mass density at 2
description: 24 pages, 17 figures. Accepted for publication in ApJ. Minor corrections to match published version
A broadband view on microquasar MAXI J1820+070 during the 2018 outburst
Creators: name: Rodi, J.
name: Tramacere, A.
name: Onori, F.
name: Bruni, G.
name: Sánchez-Fernández, C.
name: Fiocchi, M.
name: Natalucci, L.
name: Ubertini, P.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The microquasar MAXI J\(1820+070\) went into outburst from mid-March until mid-July 2018 with several faint rebrightenings afterwards. With a peak flux of approximately 4 Crab in the \(20-50\) keV, energy range the source was monitored across the electromagnetic spectrum with detections from radio to hard X-ray frequencies. Using these multi-wavelength observations, we analyzed quasi-simultaneous observations from 12 April, near the peak of the outburst (\(\sim 23\) March). Spectral analysis of the hard X-rays found a \(kT_e \sim 30 \) keV and \( τ\sim 2\) with a \texttt{CompTT} model, indicative of an accreting black hole binary in the hard state. The flat/inverted radio spectrum and the accretion disk winds seen at optical wavelengths are also consistent with the hard state. Then we constructed a spectral energy distribution spanning \(\sim 12\) orders of magnitude using modelling in \texttt{JetSeT}. The model is composed of an irradiated disk with a Compton hump and a leptonic jet with an acceleration region and a synchrotron-dominated cooling region. \texttt{JetSeT} finds the spectrum is dominated by jet emission up to approximately \(10^{14}\) Hz after which disk and coronal emission dominate. The acceleration region has a magnetic field of \( B \sim 1.6 \times 10^4 \) G, a cross section of \(R \sim 2.8 \times 10^{9} \) cm, and a flat radio spectral shape naturally obtained from the synchroton cooling of the accelerated electrons. The jet luminosity of \(> 8 \times 10^{37} \) erg/s (\(> 0.15L_{Edd}\)) compared to an accretion luminosity of \( \sim 6 \times 10^{37}\) erg/s, assuming a distance of 3 kpc. Because these two values are comparable, it is possible the jet is powered predominately via accretion with only a small contribution needed from the Blanford-Znajek mechanism from the reportedly slowly spinning black hole.
Gamow vectors formalism applied to the Loschmidt echo
Creators: name: Fortin, Sebastian
name: Gadella, Manuel
name: Holik, Federico
name: Losada, Marcelo
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Gamow vectors have been developed in order to give a mathematical description for quantum decay phenomena. Mainly, they have been applied to radioactive phenomena, scattering and to some decoherence models. They play a crucial role in the description of quantum irreversible processes, and in the formulation of time asymmetry in quantum mechanics. In this paper, we use this formalism to describe a well-known phenomenon of irreversibility: the Loschmidt echo. The standard approach considers that the irreversibility of this phenomenon is the result of an additional term in the backward Hamiltonian. Here, we use the non-Hermitian formalism, where the time evolution is non-unitary. Additionally, we compare the characteristic decay times of this phenomenon with the decoherence ones. We conclude that the Loschmidt echo and the decoherence can be considered as two aspects of the same phenomenon, and that there is a mathematical relationship between their corresponding characteristic times.
description: 22 pages, 1 figure
Can a Student-Athlete’s Personality Type Affect her Overall Athletic Success?
Creators: name: Fost, Kaitlin S.
Publisher: name: Maryland Shared Open Access Repository
Year: 2014
Subjects: subject: MBTI
subject: Athletic success
subject: Field hockey
subject: Education -- Research papers (Graduate)

description: The purpose of this study was to investigate the possible causal relationships between personality type and success in college athletics. The measurement tool was the Myers-Briggs Type Indicator test and selected performance indicators (games played, games started, goals scored, assists, shots on goal, points). This study involved use of nonparametric median test to compare the performance of athletes while also using a series of Independent Sample Median tests to look further into the Myers-Briggs Type dimensions. No significant differences were recorded when investigating athletic success and personality type. Research in this area should continue with a larger sample size and more data collected through multiple seasons.
The Effects of Instruction in Reading Strategies on the Reading Comprehension of High School Students with IEPs
Creators: name: Galeone, Erika
Publisher: name: Maryland Shared Open Access Repository
Year: 2015
Subjects: subject: Reading strategies
subject: Reading comprehension
subject: High school students with IEPs
subject: Learning disabilities
subject: Oral reading comprehension
subject: Education -- Research papers (Graduate)

description: The purpose of this study was to examine the effect of instruction in reading strategies on
the reading comprehension of high school students with Individualized Education Plans
(IEP). The measurement tool was “The Protocol for Accommodations in Reading”
(Decoste & Wilson, 2012). This study involved the use of a pretest/posttest design.
Participants were selected based on: teacher observations, the student’s Individualized
Education Plan (IEP), and ability to participate. Students received ninety minutes of
reading strategy instruction every other day (A/B schedule), for six weeks. Reading
comprehension, as evaluated by the measurement tool administered prior to intervention
and afterwards, showed significant improvement. Implications and recommendations for
future research are discussed.
Extreme renormalisations of dimer eigenmodes by strong light-matter coupling
Creators: name: Sturges, Thomas J.
name: Repän, Taavi
name: Downing, Charles A.
name: Rockstuhl, Carsten
name: Stobińska, Magdalena
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We explore by theoretical means an extreme renormalisation of the eigenmodes of a dimer of dipolar meta-atoms due to strong light-matter interactions. Firstly, by tuning the height of an enclosing photonic cavity, we can lower the energy level of the symmetric `bright' mode underneath that of the anti-symmetric `dark' mode. This is possible due to the polaritonic nature of the symmetric mode, that shares simultaneously its excitation with the cavity and the dimer. For a heterogeneous dimer, we show that the polariton modes can be smoothly tuned from symmetric to anti-symmetric, resulting in a variable mode localisation from extended throughout the cavity to concentrated around the vicinity of the dimer. In addition, we reveal a critical point where one of the meta-atoms becomes `shrouded', with no response to a driving electric field, and thus the field re-radiated by the dimer is only that of the other meta-atom. We provide an exact analytical description of the system from first principles, as well as full-wave electromagnetic simulations that show a strong quantitative agreement with the analytical model. Our description is relevant for any physical dimer where dipolar interactions are the dominant mechanism.
description: 21 pages, 6 figures
From relapse prevention to recovery protection: a positive perspective on recovery from substance use disorder
Creators: name: Ogilvie, Lisa
name: Carson, Jerome
Publisher: name: Taylor & Francis
Year: 2024
Subjects: Medicine
Biotechnology
Mental Health

description: The purpose of this paper is to advise recovery protection, a novel and contrasting conceptual proposition to relapse prevention. Recovery protection advocates that in addiction recovery, instead of people working to a level of preventing what they do not want, they elevate this toward acting to protect what they do. This translates to living an effective recovery lifestyle where ongoing personal growth can continue to make it a more valuable prospect. It is argued that this altered perspective would help promote addiction recovery as a positive and beneficial lifestyle choice, challenging some of the barriers that people with SUD face when accessing professional services. This paper commentates on recovery protection, drawing knowledge from the recovery model as applied to mental health generally and work exploring recovery from SUD as a positive process involving change and life improvement. As a theoretical position, it is in its infancy, requiring greater study to establish it as a valid prospect in drug and alcohol treatment services. Recovery protection is a novel proposition that seeks to align recovery from SUD with the recovery model in mental health generally. It recognizes recovery from SUD as a process of growth and positive change.
Bounds on changes in Ritz values for a perturbed invariant subspace of a Hermitian matrix
Creators: name: Argentati, M. E.
name: Knyazev, A. V.
name: Paige, C. C.
name: Panayotov, I.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Numerical Analysis (math.NA)
subject: Spectral Theory (math.SP)
subject: FOS: Mathematics
subject: 15A18; 15A42; 15A57; 15A60

description: The Rayleigh-Ritz method is widely used for eigenvalue approximation. Given a matrix $X$ with columns that form an orthonormal basis for a subspace $\X$, and a Hermitian matrix $A$, the eigenvalues of $X^HAX$ are called Ritz values of $A$ with respect to $\X$. If the subspace $\X$ is $A$-invariant then the Ritz values are some of the eigenvalues of $A$. If the $A$-invariant subspace $\X$ is perturbed to give rise to another subspace $\Y$, then the vector of absolute values of changes in Ritz values of $A$ represents the absolute eigenvalue approximation error using $\Y$. We bound the error in terms of principal angles between $\X$ and $\Y$. We capitalize on ideas from a recent paper [DOI: 10.1137/060649070] by A. Knyazev and M. Argentati, where the vector of absolute values of differences between Ritz values for subspaces $\X$ and $\Y$ was weakly (sub-)majorized by a constant times the sine of the vector of principal angles between $\X$ and $\Y$, the constant being the spread of the spectrum of $A$. In that result no assumption was made on either subspace being $A$-invariant. It was conjectured there that if one of the trial subspaces is $A$-invariant then an analogous weak majorization bound should only involve terms of the order of sine squared. Here we confirm this conjecture. Specifically we prove that the absolute eigenvalue error is weakly majorized by a constant times the sine squared of the vector of principal angles between the subspaces $\X$ and $\Y$, where the constant is proportional to the spread of the spectrum of $A$. For many practical cases we show that the proportionality factor is simply one, and that this bound is sharp. For the general case we can only prove the result with a slightly larger constant, which we believe is artificial.
description: 12 pages. Accepted to SIAM Journal on Matrix Analysis and Applications (SIMAX)
North American Free Trade Area for Agriculture: The Role of Canada and the U.S.-Canada Agreement
Creators: name: Goodloe, Carol
name: Simone, Mark
name: Goodloe, Carol
name: Simone, Mark
Publisher: name: Unknown
Year: 1992
Subjects: Agricultural and Food Policy
International Relations/Trade

description: The U.S.-Canada Free Trade Agreement (CFTA) was enacted January 1, 1989, after two and a half years of negotiations. It predates the current negotiations to create a North American Free Trade Agreement (NAFTA) by expanding the CFTA to include Mexico. Participation in a NAFTA is important to Canada in order to maintain its status under the CFTA and to ensure its exports to the United States are not displaced by Mexican products. Canadian grains, oilseeds, beef, and pork exports would likely benefit from improved access to the rapidly growing Mexican market.
Visión Integral de la Gestión en Vacunas
Creators: name: Barreno Estévez, Ana
name: Deudero-del Arco, Cristina
name: Montesdeoca-Ramírez, Daniela Celia
Publisher: name: Zenodo
Year: 2022
Subjects: subject: Vacunas, Prevención Primaria, Cuidados de Enfermería, Atención Primaria, Salud Pública, Gestión Sanitaria
subject: 42413

description: Material docente relacionado con Seminario impartido el día 17 de octubre de 2022, en la asignatura 42413- Cuidados Enfermeros en Atención Primaria. Grado en Enfermería
The Relationship Between Providing Teachers With A Supportive Environment and Teacher Satisfaction
Creators: name: Wess, Kathryn
Publisher: name: Maryland Shared Open Access Repository
Year: 2014
Subjects: subject: Teacher
subject: Satisfaction
subject: Supportive environment
subject: Leadership style
subject: Education -- Research papers (Graduate)

description: The purpose of this study was to determine whether providing teachers in a special education department in the high school setting with a supportive environment would positively affect teacher satisfaction. The study was conducted from January 2014 to June 2014 during which time a supportive environment was implemented via the department chair. The results indicate that providing a supportive environment had no significant effect on teacher satisfaction. All teachers reported an increased number of interactions and level of satisfaction with the Department Chair, but that did not change the level of satisfaction with teaching overall. Therefore, it is reasonable to conclude that teacher satisfaction is not solely impacted by the provision of a supportive environment.
Fieldwork in Cambridgeshire 2022
Creators: name: Beckley, Ruth
name: Wiles, Justin
name: Cooper-Dunn, Jessica
name: Croft, Sally
name: Casa Hatton, Rebecca
name: Hamilton, Katherine
name: Phillips, Tom
Publisher: name: Archaeology Data Service
Year: 2024

description: Proceedings of the Cambridge Antiquarian Society, 112, 203-218
Local Equilibrium Spin Distribution From Detailed Balance
Creators: name: Wang, Ziyue
name: Guo, Xingyu
name: Zhuang, Pengfei
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: As the core ingredient for spin polarization, the local equilibrium spin distribution function is derived from the detailed balance principle. The kinetic theory for interacting fermionic systems is applied to the Nambu--Jona-Lasinio model at quark level. Under the semi-classical expansion with respect to $\hbar$ and non-perturbative expansion with respect to $N_c$, the kinetic equations for the vector and axial-vector distribution functions are derived with collision terms. It is found that, for an initially unpolarized system, non-zero spin polarization can be generated at the order of $\hbar$ from the coupling between the vector and axial-vector charges. The local equilibrium spin polarization is derived from the requirement of detailed balance. It arises from the thermal vorticity and is orthogonal to the particle momentum.
description: 13 pages
Word Identification and Struggling Readers in Second Grade
Creators: name: Waters, Alison
Publisher: name: Maryland Shared Open Access Repository
Year: 2014
Subjects: subject: Second grade
subject: Second grade reading
subject: Reading difficulties
subject: Techniques/interventions for beginning readers
subject: Education -- Research papers (Graduate)

description: The purpose of this study was to determine if implementing the phonics program, Phono-graphix into a developing, second grade reading group at an independent school would positively affect the reading achievement of the seven students in the group and help improve their word identification skills. The null hypothesis predicted that after instruction in phono-graphix, second grade students in the developing reading group will show no difference in improvement in word identification The measurement tool was the Gates-McGintie reading assessments. The study involved the use of a pre/post test design to compare data from September 2013 (before the intervention was implemented) to data of May 2014 (after the intervention was nearly complete). Achievement gains were significant (except in the area of comprehension which was an improvement but not a significant one), though results could be attributable to a number of intervening factors.
title: Repurposing Bacterial CO2-fixing Organelles Using Synthetic Engineering
Creators: name: Fang, Y
Publisher: name: University of Liverpool Repository
Year: 2018

description: Bacterial microcompartments (BMCs) are protein-based organelles widespread among bacterial phyla and provide a means for compartmentalization of specific metabolic pathways. They sequester catalytic enzymes from the cytoplasm, using an icosahedral proteinaceous shell with selective permeability to metabolic molecules and substrates, to enhance metabolic efficiency. Carboxysomes were the first BMCs discovered, and their unprecedented capacity of CO2 fixation allows cyanobacteria to make a significant contribution to global carbon fixation. The carboxysome was classified as α- and β-carboxysome according to the Rubisco form. The shell of the carboxysome ensures preferable transport of bicarbonate and CO2 assimilation, making the carboxysome as an ideal nanobioreactor. Assembly studies and functional characterization of synthetic carboxysomes are important for understanding the assembly of carboxysomes in native and heterologous hosts. Moreover, there is an increasing interest in utilizing synthetic biology to construct synthetic carboxysomes or carboxysome shells in new hosts, i.e., higher plants, to enhance carbon fixation and productivity. In Chapter 1, I summarized the research background and aims of the PhD project. In Chapter 3, I described the construction of a synthetic operon of β-carboxysomes from the cyanobacterium Synechococcus elongatus PCC7942 and the synthetic production of functional β-carboxysome structures in Escherichia coli. The structure, assembly, activity and interchangeability of synthetic β-carboxysomes were assessed using confocal, electron and atomic force microscopy, proteomics, immunoblot analysis, and enzymatic assays. To our knowledge, this is the first production of functional β-carboxysomes in heterologous organisms. In Chapter 4, the α-carboxysomes from the chemoautotroph Halothiobacillus neapolitanus were heterogeneous synthesized in E. coli. To improve the activity, the Rubisco activase CbbQO complex was introduced to the α-carboxysome expression system. We found that the addition of Rubisco activase CbbQ can improve the function of the synthetic carboxysomes and didn’t affect the assembly of synthetic carboxysomes. In Chapter 5, the synthetic α-carboxysome shell was constructed and characterized. In Chapter 6, I summarized the results and prospect the future perspectives for my projects. This study strengthens synthetic biology toolbox for generating not only functional carboxysome structures but also BMC-like organelles with tunable activities and BMC shell. It will inform the improvement of carboxysome engineering and the construction of functional CO2-fixing modules for plant engineering as well as new nanoreactors.
The 2dF-SDSS LRG and QSO survey: evolution of the clustering of luminous red galaxies since z = 0.6
Creators: name: Wake, David A.
name: Sheth, Ravi K.
name: Nichol, Robert C.
name: Baugh, Carlton M.
name: Bland-Hawthorn, Joss
name: Cannon, Russell
name: Colless, Matthew
name: Couch, Warrick J.
name: Croom, Scott M.
name: De Propris, Roberto
name: Drinkwater, Michael J.
name: Edge, Alastair C.
name: Loveday, Jon
name: Lam, Tsz Yan
name: Pimbblet, Kevin A.
name: Roseboom, Isaac G.
name: Ross, Nicholas P.
name: Schneider, Donald P.
name: Shanks, Tom
name: Sharp, Robert G.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present an analysis of the small-to-intermediate scale clustering of samples of Luminous Red Galaxies (LRGs) from the Sloan Digital Sky Survey and the 2dF-SDSS LRG and QSO (2SLAQ) survey carefully matched to have the same rest-frame colours and luminosity. We study the spatial two-point auto-correlation function in both redshift-space and real-space of a combined sample of over 10,000 LRGs, which represent the most massive galaxies in the universe with stellar masses > 10^11 h^-1 M_sun and space densities 10^-4 h^-3 Mpc^-3. We find no significant evolution in the amplitude r_0 of the correlation function with redshift, but do see a slight decrease in the slope with increasing redshift over 0.19 < z < 0.55 and scales of 0.32 < r < 32 h^-1 Mpc. We compare our measurements with the predicted evolution of dark matter clustering and use the halo model to interpret our results. We find that our clustering measurements are inconsistent (>99.9% significance) with a passive model whereby the LRGs do not merge with one another; a model with a merger rate of 7.5 +/- 2.3% from z = 0.55 to z = 0.19 (i.e. an average rate of 2.4% Gyr^-1) provides a better fit to our observations. Our clustering and number density measurements are consistent with the hypothesis that the merged LRGs were originally central galaxies in different haloes which, following the merger of these haloes, merged to create a single Brightest Cluster Galaxy. In addition, we show that the small-scale clustering signal constrains the scatter in halo merger histories. When combined with measurements of the luminosity function, our results suggest that this scatter is sub-Poisson. While this is a generic prediction of hierarchical models, it has not been tested before.
description: 20 pages, replaced with version accepted for publication in MNRAS
Minutes of meeting of the Trustees of the Winfield & Okanagan Centre Irrigation District, June 24, 1931
Creators: name: Trustees Of The Winfield And Okanagan Centre Irrigation District
Publisher: name: The University of British Columbia
Year: 2017

description: Minutes of meeting of the Board of Trustees of the Winfield & Okanagan Centre Irrigation District, dated June 24, 1931, regarding draining the lakes and pumping.
An upper limit to polarized submillimetre emission in Arp 220
Creators: name: Seiffert, Michael
name: Borys, Colin
name: Scott, Douglas
name: Halpern, Mark
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report the results of pointed observations of the prototypical ultra-luminous infrared galaxy (ULIRG) Arp 220 at 850 microns using the polarimeter on the SCUBA instrument on the James Clerk Maxwell Telescope. We find a Bayesian 99 per cent confidence upper limit on the polarized emission for Arp 220 of 1.54 per cent, averaged over the 15 arcsec beam-size. Arp 220 can serve as a proxy for other, more distant such galaxies. This upper limit constrains the magnetic field geometry in Arp 220 and also provides evidence that polarized ULIRGs will not be a major contaminant for next-generation cosmic microwave background polarization measurements.
description: 7 pages, 2 figures, accepted for publication in MNRAS
Las Vacunas. Del calendario a nuestras neveras
Creators: name: Deudero-del Arco, Cristina
name: Barreno-Estévez, Ana
name: Montesdeoca-Ramírez, Daniela Celia
Publisher: name: Zenodo
Year: 2022
Subjects: subject: Vacunas, Prevención Primaria, Cuidados de Enfermería, Atención Primaria, Salud
subject: 42413

description: Material docente relacionado con Seminario impartido el 17 de octubre de 2022 en la asignatura 42413- Cuidados Enfermeros en Atención Primaria. Grado en Enfermería
Renormalization group equations and the recurrence pole relations in pure quantum gravity
Creators: name: Solodukhin, Sergey N.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In the framework of dimensional regularization, we propose a generalization of the renormalization group equations in the case of the perturbative quantum gravity that involves renormalization of the metric and of the higher order Riemann curvature couplings. The case of zero cosmological constant is considered. Solving the renormalization group (RG) equations we compute the respective beta functions and derive the recurrence relations, valid at any order in the Newton constant, that relate the higher pole terms $1/(d-4)^n$ to a single pole $1/(d-4)$ in the quantum effective action. Using the recurrence relations we find the exact form for the higher pole counter-terms that appear in 2, 3 and 4 loops and we make certain statements about the general structure of the higher pole counter-terms in any loop. We show that the complete set of the UV divergent terms can be consistently (at any order in the Newton constant) hidden in the bare gravitational action, that includes the terms of higher order in the Riemann tensor, provided the metric and the higher curvature couplings are renormalized according to the RG equations.
description: 30 pages, 1 figure; equation numbering in sections 6 and 7 fixed
Quantum critical transport in clean graphene
Creators: name: Fritz, Lars
name: Schmalian, Joerg
name: Mueller, Markus
name: Sachdev, Subir
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We describe electrical transport in ideal single-layer graphene at zero applied bias. There is a crossover from collisionless transport at frequencies larger than k_B T/hbar (T is the temperature) to collision-dominated transport at lower frequencies. The d.c. conductivity is computed by the solution of a quantum Boltzmann equation. Due to a logarithmic singularity in the collinear scattering amplitude (a consequence of relativistic dispersion in two dimensions) quasi-particles and -holes moving in the same direction tend to an effective equilibrium distribution whose parameters depend on the direction of motion. This property allows us to find the non-equilibrium distribution functions and the quantum critical conductivity exactly to leading order in 1/|ln(alpha)| where alpha is the coupling constant characterizing the Coulomb interactions.
description: 19 pages, 1 figure; (v2) added comment on hydrodynamic long-time tails
Oxytricha longigranulosa Berger & Foissner 1989
Creators: name: Durán-Ramírez, Carlos Alberto
name: Dias, Roberto Júnio Pedroso
name: Estrada, Rosaura Mayén-
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Chromista
Ciliophora
Hypotrichea
Oxytrichida
Oxytrichidae
Oxytricha
Oxytricha longigranulosa

description: Oxytricha longigranulosa 2 Berger & Foissner, 1989
Distribution. ECUADOR: (Foissner et al. 2003). JAMAICA: (Dunthorn et al. 2012).
description: Published as part of Durán-Ramírez, Carlos Alberto, Dias, Roberto Júnio Pedroso & Estrada, Rosaura Mayén-, 2020, Checklist of ciliates (Alveolata: Ciliophora) that inhabit in bromeliads from the Neotropical Region, pp. 1-36 in Zootaxa 4895 (1) on page 10, DOI: 10.11646/zootaxa.4895.1.1, http://zenodo.org/record/4321437
Minutes of meeting of the Trustees of the Winfield & Okanagan Centre Irrigation District, June 26, 1931 and June 28, 1931
Creators: name: Trustees Of The Winfield And Okanagan Centre Irrigation District
Publisher: name: The University of British Columbia
Year: 2017

description: Minutes of meeting of the Board of Trustees of the Winfield & Okanagan Centre Irrigation District, June 26, 1931, regarding an objection to draining the upper lakes and permission to proceed with the process, and drafting the application to pump from Beaver Lake; minutes from meeting of June 28, 1931, regarding a report about water waste.
Academic Impact of Participation on a Division III Men’s Lacrosse Team
Creators: name: Phelps, Jeremy
Publisher: name: Maryland Shared Open Access Repository
Year: 2014
Subjects: subject: GPA
subject: Lacrosse
subject: Division III
subject: Academic performance
subject: Education -- Research papers (Graduate)

description: The purpose of this study was to determine if participation on an intercollegiate men’s lacrosse team at Goucher College would impact the academic performance of a student. Data was gathered from the 2012, 2013 and 2014 academic years and compared through the use of a dependent t-test. The study showed no relation between participation on the men’s lacrosse team and positive or negative performance in the classroom. Research in the area of the impact of athletics on academic performance should continue, as there are many other factors that could be considered in this area.
DigiVet Deliverable 3.1: reports from international workshops
Creators: name: Shortall, Orla
name: Kyle, Carol
name: Boden, Lisa
name: Denwood, Matt
name: Enright, Jessica
name: Bogaardt, Carlijn
name: Cha, Wonhee
name: Nielsen, Soren
name: Puk Skarbye, Alice
name: Frossling, Jenny
name: Gustafsson, Wiktor
name: Hopp, Petter
Publisher: name: Zenodo
Year: 2023

description: This upload contains the reports that constitute deliverable D3.1 from the DigiVet project.  They describe the findings of three international workshops held during the project, one associated with each core case study.
Was nützt und inwiefern tröstet eine "unmögliche Möglichkeit"?
Creators: name: Thomas, Günter
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 56 Nr. 2 (2007): Ökumenische Rundschau, Band 56, Heft 2
Holographic Viscosity of Fundamental Matter
Creators: name: Mateos, David
name: Myers, Robert C.
name: Thomson, Rowan M.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: A holographic dual of a finite-temperature SU(N_c) gauge theory with a small number of flavours N_f << N_c typically contains D-branes in a black hole background. By considering the backreaction of the branes, we demonstrate that, to leading order in N_f/N_c, the viscosity to entropy ratio in these theories saturates the conjectured universal bound eta/s >= 1/4π. The contribution of the fundamental matter eta_fund is therefore enhanced at strong 't Hooft coupling lambda; for example, eta_fund ~ lambda N_c N_f T^3 in four dimensions. Other transport coefficients are analogously enhanced. These results hold with or without a baryon number chemical potential.
description: 6 pages
Sample size calculation for the Andersen-Gill model comparing rates of recurrent events
Creators: name: Tang, Yongqiang
name: Fitzpatrick, Ronan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences

description: Recurrent events arise frequently in biomedical research, where the subject may experience the same type of events more than once. The Andersen-Gill (AG) model has become increasingly popular in the analysis of recurrent events particularly when the event rate is not constant over time. We propose a procedure for calculating the power and sample size for the robust Wald test from the AG model in superiority, noninferiority, and equivalence clinical trials. Its performance is demonstrated by numerical examples. Sample SAS code is provided in the Supplementary Material.
description: 10
Cloning, characterization, and localization of an ABC transporter in the rod photoreceptor rims implicated in Stargardt's and age-related macular distrophy
Creators: name: Illing, Michelle Elizabeth Anne
Publisher: name: University of British Columbia
Year: 2009

description: Outer segments of vertebrate photoreceptor cells contain an abundantly expressed membrane protein that migrates with an apparent molecular mass of 220-290 kDa by SDS gel electrophoresis. Twenty years ago, immunocytochemical studies localized the 290 kDa frog protein to the rims of the photoreceptor disks and since then it has been generally believed that this rim protein is responsible for the filaments observed that link adjacent disks and/or disks to the plasma membrane. Due to its localization and abundance in the outer segment, this protein is likely a good candidate for involvement in retinal disease. In this study, the primary structure of the bovine 220 kDa protein has been determined by cDNA cloning and direct peptide sequence analysis. A data base homology search showed that it is a new member of the ABC (ATP-binding cassette) transporter superfamily, which includes the cystic fibrosis transmembrane conductance regulator (CFTR), multi-drug resistance proteins P-glycoprotein and MRP, and bacterial transporters. Generally, these proteins utilize the energy of ATP hydrolysis by two nucleotide binding domains (NBDs) for transport of a substrate across the membrane. Clones containing the human 220 kDa orthologue were found to be identical to a recently cloned retina cell-specific ABC transporter (Allikmets et al., Nature Genetics, 15, 236, 1997). Mutations in the gene encoding this protein (ABCR) have been implicated in Stargardt's disease, and more recently, in age-related macular dystrophy. Studies of immunoaffinity purified 220 kDa protein showed that both ATP and GTP bind this protein with similar affinities. In addition, the protein contains at least one carbohydrate chain and, when solubilized with detergent, does not appear to co-purify with other proteins. Immunocytochemical and biochemical studies have revealed that the 220 kDa glycoprotein is distributed along the rim region and incisures of rod outer segment disk membranes in a pattern similar to that observed for the 290 kDa protein in frog photoreceptors. Two cytoplasmic fragments each containing one NBD were expressed in Escherichia coli and purified. Both of the NBDs were capable of hydrolyzing ATP and GTP at rates comparable to NBDs of other ABC transporters. These experiments suggest that the energy of nucleotide hydrolysis supports active transport of a substrate across the disk membrane. This study serves as a basis for beginning to define the role of the ABC transporter in rod photoreceptor structure and function and elucidating the molecular basis for how specific mutations in the ABCR gene, particularly those in the NBD, lead to either Stargardt's disease or AMD.
Accurate Mass Determinations in Decay Chains with Missing Energy
Creators: name: Cheng, Hsin-Chia
name: Engelhardt, Dalit
name: Gunion, John F.
name: Han, Zhenyu
name: McElrath, Bob
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Many beyond the Standard Model theories include a stable dark matter candidate that yields missing / invisible energy in collider detectors. If observed at the Large Hadron Collider, we must determine if its mass and other properties (and those of its partners) predict the correct dark matter relic density. We give a new procedure for determining its mass with small error.
description: 6 figures, 4 pages
The Effects of Use of Video Techniques on Division III Collegiate Athletes
Creators: name: Peckham, Sean Edward
Publisher: name: Maryland Shared Open Access Repository
Year: 2014
Subjects: subject: Education -- Research papers (Graduate)

description: The purpose of this study was to determine if the reviewing of game film had a significant effect on the results of the Goucher Men’s Soccer team throughout the 2014 season. The researcher used measurements in the effort to see if there were significant differences on results on weeks when video analysis was utilized and weeks when video analysis was not utilized. The measurement tools that were used were box score statistics: wins, goals scored, goals against, shots, shots on goal, assists, corner kicks, and saves. A series of t-tests were run to examine any differences in game statistics based on whether game film was watched. The results indicated there were no significant differences in statistics and results based on whether video analysis was conducted. It would be valuable to continue research on video analysis and its importance in sports especially at higher levels where more resources are available.
Probing the coherence of solid-state qubits at avoided crossings
Creators: name: Onizhuk, Mykyta
name: Miao, Kevin C.
name: Blanton, Joseph P.
name: Ma, He
name: Anderson, Christopher P.
name: Bourassa, Alexandre
name: Awschalom, David D.
name: Galli, Giulia
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Optically addressable paramagnetic defects in wide-band-gap semiconductors are promising platforms for quantum communications and sensing. The presence of avoided crossings between the electronic levels of these defects can substantially alter their quantum dynamics and be both detrimental and beneficial for quantum information applications. Avoided crossings give rise to clock transitions, which can significantly improve protection from magnetic noise and favorably increase coherence time. However, the reduced coupling between electronic and nuclear spins at an avoided crossing may be detrimental to applications where nuclear spins act as quantum memories. Here we present a combined theoretical and experimental study of the quantum dynamics of paramagnetic defects interacting with a nuclear spin bath at avoided crossings. We develop a computational approach based on a generalization of the cluster expansion technique, which can account for processes beyond pure dephasing and describe the dynamics of any solid-state spin-qubits near avoided crossings. Using this approach and experimental validation, we determine the change in nature and source of noise at avoided crossings for divacancies in SiC. We find that we can condition the clock transition of the divacancies in SiC on multiple adjacent nuclear spins states. In our experiments, we demonstrate that one can suppress the effects of fluctuating charge impurities with depletion techniques, leading to an increased coherence time at clock transition, limited purely by magnetic noise. Combined with ab-initio predictions of spin Hamiltonian parameters, the proposed theoretical approach paves the way to designing the coherence properties of spin qubits from first principles.
description: 29 pages, 7 figures
Biologic and targeted synthetic disease-modifying anti-rheumatic drugs in rheumatoid arthritis
Creators: name: Qureshi, Ismail Mohammed Sharif
name: Vreju, Ananu Florentin
name: Dinescu, Stefan Cristian
Publisher: name: Zenodo
Year: 2023
Subjects: DMARDs
Rheumatology
Medicine

description: This thesis is designed to study the therapeutic approach in rheumatoid arthritis with focus on the use of biologic and targeted synthetic disease modifying antirheumatic drugs.

The aim of this study is to describe the therapeutic approach in rheumatoid arthritis with a focus on immunosuppressive therapies such as bDMARDs and tsDMARDs. Whether or not one therapy is more effective than the other, if there are patterns regarding therapy compared to sex as well as age of the patient.