cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Suppression and Spatial Variation of Early Galaxies and Minihalos
Creators: name: Tseliakhovich, Dmitriy
name: Barkana, Rennan
name: Hirata, Christopher
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We study the effect of the relative velocity of dark matter and baryonic fluids after the epoch of recombination on the evolution of the first bound objects in the early universe. Recent work has shown that, although relative motion of the two fluids is formally a second order effect in density, it has a dramatic impact on the formation and distribution of the first cosmic structures. Focusing on the gas content, we analyze the effect of relative velocity on the properties of halos over a wide range of halo masses and redshifts. We calculate accurately the linear evolution of the baryon and dark matter fluctuations, and quantify the resulting effect on halos based on an analytical formalism that has been carefully checked with simulations in the case with no relative velocity. We estimate the effect on the abundance of and gas fraction in early halos. We find that the relative velocity effect causes several changes: (i) the characteristic mass that divides gas-rich and gas-poor halos is increased by roughly an order of magnitude, from 2 10^4 Msun to about 2 10^5 Msun; (ii) this characteristic mass has a large scatter (full width at half maximum is ~ 1.5 10^5 Msun at z=20); (iii) the fraction of baryons in star-less gas minihalos is suppressed by a factor of 4 at z=20; (iv) the fraction of baryons in halos that can cool and form stars is suppressed by a factor of 1.5 at z=20; and (v) there are enhanced spatial variations of these various fractions.
description: 10 pages, 10 figures
On the role of dynamical barriers in barrierless-reactions at low energies: S($^1$D) + H$_2$
Creators: name: Lara, Manuel
name: Jambrina, P. G.
name: Varandas, A. J. C.
name: Launay, J. -M.
name: Aoiz, F. J.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Reaction probabilities as a function of total angular momentum and the resulting reaction cross-sections for the collision of open shell S($^1$D) atoms with para-hydrogen have been calculated in the kinetic energy range 0.09--10 meV (1--120 K). The quantum mechanical (QM) hyperspherical reactive scattering method and quasi--classical trajectory (QCT) and statistical quasiclassical trajectory (SQCT) approaches were used. Two different ab initio potential energy surfaces (PESs) have been considered. The widely used RKHS PES by Ho et al. (J. Chem. Phys. 116, 4124, 2002) and the recently published DMBE/CBS PES by Song and Varandas (J. Chem. Phys. 130, 134317, 2009). The calculations at low collision energies reveal very different dynamical behaviors on the two PESs. The reactivity on the RKHS PES is found to be considerably larger than that on the DMBE/CBS PES. The observed differences have their origin in two major distinct topography features. Although both PESs are essentially barrierless for equilibrium H--H distances, when the H--H bond is compressed the DMBE/CBS PES gives rise to a dynamical barrier which limits the reactivity of the system. This barrier is completely absent in the RHKS PES. In addition, the latter PES exhibits a van der Walls well in the entrance channel which reduces the height of the centrifugal barrier and is able to support resonances. As a result a significant larger cross section is found on this PES, with marked oscillations attributable to shape resonances and/or to the opening of partial wave contributions.
description: 15 pages. 8 figures
Virtual authenticity : authenticity of digital records from theory to practice
Creators: name: Rogers, Corinne
Publisher: name: University of British Columbia
Year: 2015

description: The assessment and protection of the authenticity of digital records and data are recognized as fundamental issues for the records’ current use as well as for their long-term preservation and dissemination. Over the past twenty years, the matter of how to define, determine, and guarantee the endurance of authenticity has been the subject of research in all evidence-based or memory-based disciplines, including archival science, digital humanities, and law. Despite the wealth of past and current research findings, recommendations, and tools, authenticity is still discussed as an urgent problem for records and data created and maintained in traditional digital technologies as well as in emerging ones, such as cloud technologies, and embedded or wearable technologies. This study investigates contemporary ideas about authenticity of records and data, and practices employed by records professionals. Based on the archival idea that record authenticity is assessed by establishing its identity and proving its integrity, this study identifies indicators for authenticity and categorizes them as either social or technical mechanisms. Using a mixed methods design, it measures how records professionals ensure, manage, and continuously assess record authenticity and to what extent their practices reflect the results of available research. A web-based survey reached records professionals worldwide through professional listservs, and semi-structured interviews gathered further qualitative data from a sample drawn from the survey respondents. The results show that the standard archival definition of authenticity is not uniformly accepted or implemented in practice, and terms such as authenticity, reliability, integrity, and provenance are often used interchangeably and with little precision. They also reveal that experience plays a major role, in that professionals who are not required to authenticate records in the course of their work tend to have more confidence in technical mechanisms that those who are. The study concludes that most records professionals ensure authenticity by relying on social mechanisms but have greater confidence in technical mechanisms to authenticate records and data. In other words, records professionals, traditionally the trusted agents of record control (trustees), have frequently become the trustors, placing their trust in technology of which they may have little understanding and even less control.
The spatial relation between the event horizon and trapping horizon
Creators: name: Nielsen, Alex B.
Publisher: name: arXiv
Year: 2010
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The relation between event horizons and trapping horizons is investigated in a number of different situations with emphasis on their role in thermodynamics. A notion of constant change is introduced that in certain situations allows the location of the event horizon to be found locally. When the black hole is accreting matter the difference in area between the two different horizons can be many orders of magnitude larger than the Planck area. When the black hole is evaporating the difference is small on the Planck scale. A model is introduced that shows how trapping horizons can be expected to appear outside the event horizon before the black hole starts to evaporate. Finally a modified definition is introduced to invariantly define the location of the trapping horizon under a conformal transformation. In this case the trapping horizon is not always a marginally outer trapped surface.
description: 16 pages, 1 figure
A review of the decoherent histories approach to the arrival time problem in quantum theory
Creators: name: Yearsley, James M
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We review recent progress in understanding the arrival time problem in quantum mechanics, from the point of view of the decoherent histories approach to quantum theory. We begin by discussing the arrival time problem, focussing in particular on the role of the probability current in the expected classical solution. After a brief introduction to decoherent histories we review the use of complex potentials in the construction of appropriate class operators. We then discuss the arrival time problem for a particle coupled to an environment, and review how the arrival time probability can be expressed in terms of a POVM in this case. We turn finally to the question of decoherence of the corresponding histories, and we show that this can be achieved for simple states in the case of a free particle, and for general states for a particle coupled to an environment.
description: 10 pages. To appear in DICE 2010 conference proceedings
title: Zur Bedeutsamkeit von Ausbildungskomponenten des Lehramtsstudiums im Urteil von Erstsemestern: Erste Ergebnisse der Studie "Entwicklung Lehramtsstudierender im Kontext institutioneller Rahmenbedingungen" (ELKiR)
Creators: name: Cramer, Colin
name: Horn, Klaus-Peter
name: Schweitzer, Friedrich
Publisher: name: Publikationsserver der Pädagogischen Hochschule Thurgau
Year: 2009
Subjects: Vergleichende Erziehungswissenschaft
Lehrerbildung
Fachdidaktik
Professionalisierung

description: Auf der Basis einer Übersicht über die Lehrerbildungsforschung zur ersten Phase (Studium) und der dabei festzustellenden Desiderate werden der Ansatz der Studie "Entwicklung Lehramtsstudierender im Kontext institutioneller Rahmenbedingungen" (ELKiR) und erste Ergebnisse zur Einschätzung der Bedeutsamkeit verschiedener Ausbildungskomponenten durch Lehramtsstudierende im ersten Semester vorgestellt und diskutiert. Im Zentrum steht dabei das Ergebnis, dass bereits die Erstsemester vorrangig "von der Praxis her", also von den schulpraktischen Studien und der zweiten Phase der Ausbildung aus, ihr Studium wahrnehmen. Insbesondere die fachwissenschaftlichen, aber auch fachdidaktische und bildungswissenschaftliche Ausbildungsbestandteile werden hingegen als weniger bedeutsam eingeschätzt.
description: On the basis of a survey of research on teacher training during the first phase (university courses) and of the desiderata resulting from this, the authors present and discuss the specific approach of the study "The Development of Students in Teacher Training within the Context of Institutional Framework Conditions" (ELKiR) as well as first results regarding the evaluation of the significance of different training components through students in teacher training in their first semester. The main focus is on the result that even students in their first semester perceive their course of studies mainly from the perspective of "the practice", i.e. from the perspective of practical work experiences in schools and of the second phase of their training. The specialist components, in particular, but also subject-related didactical and educational-scientific components of their training, on the other hand, are thought to be of lesser importance. (DIPF/Orig.)
description: Zeitschrift für Pädagogik, vol. 55, no. 5, p. 761
Photometric detection of non-transiting short-period low-mass companions through the beaming, ellipsoidal and reflection effects in Kepler and CoRoT lightcurves
Creators: name: Faigler, Simchon
name: Mazeh, Tsevi
Publisher: name: arXiv
Year: 2011
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We present a simple algorithm, BEER, to search for a combination of the BEaming, Ellipsoidal and the Reflection/heating periodic modulations, induced by short-period non-transiting low-mass companions. The beaming effect is due to the increase (decrease) of the brightness of any light source approaching (receding from) the observer. To first order, the beaming and the reflection/heating effects modulate the stellar brightness at the orbital period, with phases separated by a quarter of a period, whereas the ellipsoidal effect is modulated with the orbital first harmonic. The phase and harmonic differences between the three modulations allow the algorithm to search for a combination of the three effects and identify stellar candidates for low-mass companions. The paper presents the algorithm, including an assignment of a likelihood factor to any possible detection, based on the expected ratio of the beaming and ellipsoidal effects, given an order-of-magnitude estimate of the three effects. As predicted by Loeb & Gaudi (2003) and Zucker, Mazeh & Alexander (2007), the Kepler and the CoRoT lightcurves are precise enough to allow detection of massive planets and brown-dwarf/low-mass-stellar companions with orbital period up to 10-30 days. To demonstrate the feasibility of the algorithm, we bring two examples of candidates found in the first 33 days of the Q1 Kepler lightcurves. Although we used relatively short timespan, the lightcurves were precise enough to enable the detection of periodic effects with amplitudes as small as one part in 10,000 of the stellar flux.
description: 19 pages, 6 figures and 1 table; Accepted for publication in MNRAS
Additional file 1 of Minimal residual disease in multiple myeloma: current status
Creators: name: Ding, Hong
name: Xu, Juan
name: Lin, Zhimei
name: Huang, Jingcao
name: Wang, Fangfang
name: Yang, Yan
name: Cui, Yushan
name: Luo, Hongmei
name: Gao, Yuhan
name: Zhai, Xinyu
name: Pang, Weicui
name: Zhang, Li
name: Zheng, Yuhuan
Publisher: name: figshare
Year: 2021
Subjects: subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Physiology
subject: Biotechnology
subject: Chemical Sciences not elsewhere classified
subject: Biological Sciences not elsewhere classified
subject: Cancer
subject: Hematology

description: Additional file 1.
QORAQALPOG'ISTON HUDUDIDA (COLEOPTERA: CURCULIONIDAE) OILASI HASHAROTLARI VA ULARNING AHAMIYATI
Creators: name: Madireymov, Sh.R.
Publisher: name: Zenodo
Year: 2025

description: Qoraqalpog’iston Respublikasi Oʻzbekistonning shimoli-g’arbiy qismida joylashgan boʻlib, asosan choʻl va yarim choʻl hududlaridan iborat. Bu hududda turli xil hasharotlar, jumladan, Curculionidae oilasiga mansub turlar uchraydi. Curculionidae, odatda uzunburun qoʻng’izlar deb ataladi, Coleoptera turkumiga kiruvchi hasharotlar oilasidir. Ular dunyo boʻylab 6 800 ga yaqin turkum va 83 000 dan ortiq tur bilan hasharotlarning eng katta oilalaridan biri hisoblanadi.
Cataclysmic Variables below the Period Gap: Mass Determinations of 14 Eclipsing Systems
Creators: name: Savoury, C. D. J.
name: Littlefair, S. P.
name: Dhillon, V. S.
name: Marsh, T. R.
name: Gaensicke, B. T.
name: Copperwheat, C. M.
name: Kerry, P.
name: Hickman, R. D. G.
name: Parsons, S. G.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present high-speed, three-colour photometry of the eclipsing cataclysmic variables CTCV 1300, CTCV 2354 and SDSS 1152. All three systems are below the observed "period gap" for cataclysmic variables. For each system we determine the system parameters by fitting a parameterised model to the observed eclipse light curve by chi-squared minimisation. We also present an updated analysis of all other eclipsing systems previously analysed by our group. New donor masses are generally between 1 and 2 sigma of those originally published, with the exception of SDSS 1502 and DV UMa. We note that the donor mass of SDSS 1501 has been revised upwards by 0.024Msun. This system was previously identified as having evolved passed the minimum orbital period for cataclysmic variables, but the new mass determination suggests otherwise. Our new analysis confirms that SDSS 1035 and SDSS 1433 have evolved past the period minimum for cataclysmic variables, corroborating our earlier studies. We find that the radii of donor stars are oversized when compared to theoretical models, by approximately 10 percent. We show that this can be explained by invoking either enhanced angular momentum loss, or by taking into account the effects of star spots. We are unable to favour one cause over the other, as we lack enough precise mass determinations for systems with orbital periods between 100 and 130 minutes, where evolutionary tracks begin to diverge significantly. We also find a strong tendency towards high white dwarf masses within our sample, and no evidence for any He-core white dwarfs. The dominance of high mass white dwarfs implies that erosion of the white dwarf during the nova outburst must be negligible, or that not all of the mass accreted is ejected during nova cycles, resulting in the white dwarf growing in mass. (Abridged)
description: Accepted for publication in MNRAS (14th March 2011). 20 Pages, 8 figures, 3 tables
Intracellular trafficking of a model polytopic membrane protein in Saccharomyces cerevisiae
Creators: name: Dharwada, Sai Tejasvi
Publisher: name: University of British Columbia
Year: 2016

description: Polytopic membrane protein synthesis involves translation followed by translocation across the lipid bilayer at the ER. Here, various chaperones, together with enzymes that add post and co-translational modifications, help the protein achieve a final three-dimensional structure. General and substrate-specific chaperones prevent toxic aggregation of proteins by shielding and preventing interaction between non-native species. Terminally misfolded proteins are destroyed by the quality control machinery of the cell and the amino acids are recycled for further use. In the following study, we used Chitin synthase III (Chs3) of Saccharomyces cerevisiae as a model to dissect the complexities involved in polytopic membrane protein synthesis at the ER. Previous genetic screens from our lab have revealed a novel regulator of Chs3 trafficking called Pfa4, a DHHC enzyme required for Chs3 palmitoylation at the ER. At the ER, Chs3 also requires Chs7, a dedicated chaperone for folding and assembly. We identified a novel secondary role for Chs7 in Chs3 trafficking as a co-factor required for Chs3 function at the plasma membrane. Our study also examined the role of palmitoylation in Chs3 trafficking. Palmitoylation of Chs3 is required for its efficient interaction with Chs7, in addition to folding and ER export. A genome-wide screen also identified the Ubp3/Bre5 deubiquitination complex as a regulator of non-lipidated Chs3 degradation at the ER. The discovery that dedicated chaperones can take on additional roles and that palmitoylation can influence chaperone-client interactions could provide insights into the workings of the protein folding machinery at the ER.
Twinning Commercial Network Traces on Experimental Open RAN Platforms
Creators: name: Bonati, Leonardo
name: Shirkhani, Ravis
name: Fiandrino, Claudio
name: Maxenti, Stefano
name: D'Oro, Salvatore
name: Polese, Michele
name: Melodia, Tommaso
Publisher: name: arXiv
Year: 2024
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: While the availability of large datasets has been instrumental to advance fields like computer vision and natural language processing, this has not been the case in mobile networking. Indeed, mobile traffic data is often unavailable due to privacy or regulatory concerns. This problem becomes especially relevant in Open Radio Access Network (RAN), where artificial intelligence can potentially drive optimization and control of the RAN, but still lags behind due to the lack of training datasets. While substantial work has focused on developing testbeds that can accurately reflect production environments, the same level of effort has not been put into twinning the traffic that traverse such networks. To fill this gap, in this paper, we design a methodology to twin real-world cellular traffic traces in experimental Open RAN testbeds. We demonstrate our approach on the Colosseum Open RAN digital twin, and publicly release a large dataset (more than 500 hours and 450 GB) with PHY-, MAC-, and App-layer Key Performance Measurements (KPMs), and protocol stack logs. Our analysis shows that our dataset can be used to develop and evaluate a number of Open RAN use cases, including those with strict latency requirements.
description: 8 pages, 10 figures, 4 tables. Accepted for publication in the Proceedings of 18th ACM Workshop on Wireless Network Testbeds, Experimental Evaluation & Characterization (WiNTECH '24)
High pressure Ca-VI phase between 158-180 GPa: Stability, electronic structure and superconductivity
Creators: name: Aftabuzzaman, M.
name: Islam, A. K. M. A.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We have performed ab initio calculations for new high-pressure phase of Ca-VI between 158-180 GPa. The study includes elastic parameters of mono- and poly-crystalline aggregates, electronic band structure, lattice dynamics and superconductivity. The calculations show that the orthorhombic Pnma structure is mechanically and dynamically stable in the pressure range studied. The structure is superconducting in the entire pressure range and the calculated Tc (~25K) is maximum at ~172 GPa, where the transfer of charges from 4s to 3d may be thought to be completed.
description: 8 pages, 4 figures; PACS number(s): 74.70.Ad, 62.20.de, 71.20.-b, 74.20.Pq, 74.25.Kc, 74.62.Fj; Keywords: Calcium; High pressure; Electronic band structure; Phonon spectrum; Elastic constants; Superconductor
Dark matter in UED : the role of the second KK level
Creators: name: Belanger, G.
name: Kakizaki, M.
name: Pukhov, A.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We perform a complete calculation of the relic abundance of the KK-photon LKP in the universal extra dimension model including all coannihilation channels and all resonances. We show that the production of level 2 particles which decay dominantly into SM particles contribute significantly to coannihilation processes involving level 1 KK-leptons. As a result the preferred dark matter scale is increased to $R^{-1}=1.3$~TeV. A dark matter candidate at or below the TeV scale can only be found in the non-minimal model by reducing the mass splittings between the KK-particles and the LKP. The LKP nucleon scattering cross section is typically small, $σ< 10^{-10}$~pb, unless the KK-quarks are nearly degenerate with the LKP.
description: 18 pages, 6 figures
$K$ to $ππ$ Decay amplitudes from Lattice QCD
Creators: name: Blum, T.
name: Boyle, P. A.
name: Christ, N. H.
name: Garron, N.
name: Goode, E.
name: Izubuchi, T.
name: Lehner, C.
name: Liu, Q.
name: Mawhinney, R. D.
name: Sachrajda, C. T.
name: Soni, A.
name: Sturm, C.
name: Yin, H.
name: Zhou, R.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We report a direct lattice calculation of the $K$ to $ππ$ decay matrix elements for both the $ΔI=1/2$ and 3/2 amplitudes $A_0$ and $A_2$ on 2+1 flavor, domain wall fermion, $16^3\times32\times16$ lattices. This is a complete calculation in which all contractions for the required ten, four-quark operators are evaluated, including the disconnected graphs in which no quark line connects the initial kaon and final two-pion states. These lattice operators are non-perturbatively renormalized using the Rome-Southampton method and the quadratic divergences are studied and removed. This is an important but notoriously difficult calculation, requiring high statistics on a large volume. In this paper we take a major step towards the computation of the physical $K\toππ$ amplitudes by performing a complete calculation at unphysical kinematics with pions of mass 422\,MeV at rest in the kaon rest frame. With this simplification we are able to resolve Re$(A_0)$ from zero for the first time, with a 25% statistical error and can develop and evaluate methods for computing the complete, complex amplitude $A_0$, a calculation central to understanding the $Δ=1/2$ rule and testing the standard model of CP violation in the kaon system.
description: 40 pages, 12 figures
Conditionally Positive Functions and p-norm Distance Matrices
Creators: name: Baxter, Brad
Publisher: name: arXiv
Year: 2010
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: 41A05, 41A63, 41A25, 41A30

description: In Micchelli's paper "Interpolation of scattered data: distance matrices and conditionally positive functions", deep results were obtained concerning the invertibility of matrices arising from radial basis function interpolation. In particular, the Euclidean distance matrix was shown to be invertible for distinct data. In this paper, we investigate the invertibility of distance matrices generated by $p$-norms. In particular, we show that, for any $p\in (1, 2)$, and for distinct points $ x^1, ..., x^n \in {\cal R}^d $, where $n$ and $d$ may be any positive integers, with the proviso that $ n \ge 2$, the matrix $A \in {\cal R}^{n \times n} $ defined by $$ A_{ij} = \Vert x^i - x^j \Vert_p , \hbox{ for } 1 \le i, j \le n, $$ satisfies $$ (-1)^{n-1}\det A > 0 .$$ We also show how to construct, for every $p > 2$, a configuration of distinct points in some ${\cal R}^d$ giving a singular $p$-norm distance matrix. Thus radial basis function interpolation using $p$-norms is uniquely determined by any distinct data for $p \in (1,2]$, but not so for $p > 2$.
Chiral topological excitonic insulator in semiconductor quantum wells
Creators: name: Hao, Ningning
name: Zhang, Ping
name: Li, Jian
name: Wang, Zhigang
name: Zhang, Wei
name: Wang, Yupeng
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We present a scheme to realize the chiral topological excitonic insulator in semiconductor heterostructures which can be experimentally fabricated with a coupled quantum well adjacent to twoferromagnetic insulating films. The different mean-field chiral topological orders, which are due to the change in the directions of the magnetization of the ferromagnetic films, can be characterized by the TKNN numbers in the bulk system as well as by the winding numbers of the gapless states in the edged system. Furthermore, we propose an experimental scheme to detect the emergence of the chiral gapless edge state and distinguish different chiral topological orders by measuring the thermal conductance.
description: 14 pages, 4 figures
Integration of HIV services into primary health care: a health system approach in Free State South Africa
Creators: name: Rawat, Angeli
Publisher: name: University of British Columbia
Year: 2016

description: Improving access to antiretroviral therapy (ART) for HIV has improved life expectancy and reduced HIV transmission. The integration or decentralisation of HIV care into primary health care (PHC) clinics is a widely promoted strategy to expand access to ART. In South Africa, a national policy to integrate HIV care into PHC services was implemented in April 2010. Comprehensive HIV care, from testing to the initiation and management of ART, was provided largely by nurses in PHC clinics. Little evidence exists on the impact of integration on: 1) patients 2) health care workers and 3) PHC clinic function and service delivery. By examining this question in Free State, South Africa through a health systems approach, I aimed to understand the benefits and challenges of integrating HIV care into PHC services. A mixed methods approach was employed utilising quantitative (i.e. patient surveys and longitudinal analysis of administrative data across 4 years) and qualitative (i.e. key informant interviews and focus group discussions) methods. Statistical analysis included t-tests and linear regressions (patient survey data) and interrupted times series analysis and linear mixed effect modelling (longitudinal data). Qualitative data were inductively and deductively thematically coded, and applied to a health systems framework. Concerning patients, advantages of integration were the provision of comprehensive care at PHC clinics (including HIV care), maintaining quality of care (QoC) as integration progressed, improved care across the continuum, family and community engagement. However, increased wait times, decreased QoC for chronic disease patients and concerns about retention were identified. For health care workers, despite increased workload with staff shortages, integration positively influenced job satisfaction, morale, the promotion of teamwork and mentoring. Concerning PHC service delivery, notwithstanding an increase of nearly 60, 000 patients on ART in the 131 PHC clinics in our four year study, service delivery was mostly unchanged, except for decreased immunisation coverages. In conclusion, expansion of ART through integration to PHC clinics is a viable strategy with wide health system benefits. However, care must be taken to provide adequate support for health systems to ensure the provision of equitable patient-centred PHC, especially in highly HIV prevalent contexts.
Coherent Optical Spectroscopy of a Single Quantum Dot Via an Off-Resonant Cavity
Creators: name: Majumda, Arka
name: Papageorge, Alexander
name: Kim, Erik D.
name: Bajscy, Michal
name: Kim, Hyochul
name: Petroff, Pierre
name: Vuckovic, Jelena
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In recent experiments on coupled quantum dot (QD) optical cavity systems a pronounced interaction between the dot and the cavity has been observed even for detunings of many cavity linewidths. This interaction has been attributed to an incoherent phonon-mediated scattering process and is absent in atomic systems. Here, we demonstrate that despite its incoherent nature, this process preserves the signatures of coherent interaction between a QD and a strong driving laser, which may be observed via the optical emission from the off-resonant cavity. Under bichromatic driving of the QD, the cavity emission exhibits spectral features consistent with optical dressing of the QD transition. In addition to revealing new aspects of the off-resonant QD-cavity interaction, this result provides a new, simpler means of coherently probing QDs than traditional approaches and opens the possibility of employing off-resonant cavities to optically interface QD-nodes in quantum networks.
description: 17 pages, 7 figures
CRIAÇÃO DE UMA HOMEPAGE VOLTADA AO ENSINO DE HISTÓRIA DA MATEMÁTICA (APRESENTAÇÃO)
Creators: name: TOLENTINO JUNIOR, JOB
Publisher: name: Zenodo
Year: 2002
Subjects: HOMEPAGE
ENSINO
HISTÓRIA
MATEMÁTICA

description: APRESENTAÇÃO In this work it will be possible to see reflected the effort to make a topic attractive to the student. The construction of a virtual environment, a “homepage” in question, can be a stimulus to creativity and the interest of students of the most different types.
 Therefore, this “homepage” becomes a means of arousing interest in students who, in principle, would never be aroused to this. The use of multimedia resources are used for this, and proper visual programming can make a lot of difference. Neste trabalho será possível ver refletido o esforço de tornar um tema atraente para o aluno. A construção de um ambiente virtual, uma “homepage” em questão pode ser um estímulo a criatividade e ao interesse de alunos dos mais diferentes tipos.
 Sendo assim, esta “homepage” se torna um meio de despertar o interesse em alunos que a princípio nunca seriam despertados para isto. O uso de recursos de multimídia são usados para isto, e uma programação visual adequada pode fazer muita diferença.
Preconditioned Conjugate Gradients, Radial Basis Functions and Toeplitz Matrices
Creators: name: Baxter, Brad
Publisher: name: arXiv
Year: 2010
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: 65D05

description: Radial basis functions provide highly useful and flexible interpolants to multivariate functions. Further, they are beginning to be used in the numerical solution of partial differential equations. Unfortunately, their construction requires the solution of a dense linear system. Therefore much attention has been given to iterative methods. In this paper, we present a highly efficient preconditioner for the conjugate gradient solution of the interpolation equations generated by gridded data. Thus our method applies to the corresponding Toeplitz matrices. The number of iterations required to achieve a given tolerance is independent of the number of variables.
Performance Bounds and Design Criteria for Estimating Finite Rate of Innovation Signals
Creators: name: Ben-Haim, Zvika
name: Michaeli, Tomer
name: Eldar, Yonina C.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: In this paper, we consider the problem of estimating finite rate of innovation (FRI) signals from noisy measurements, and specifically analyze the interaction between FRI techniques and the underlying sampling methods. We first obtain a fundamental limit on the estimation accuracy attainable regardless of the sampling method. Next, we provide a bound on the performance achievable using any specific sampling approach. Essential differences between the noisy and noise-free cases arise from this analysis. In particular, we identify settings in which noise-free recovery techniques deteriorate substantially under slight noise levels, thus quantifying the numerical instability inherent in such methods. This instability, which is only present in some families of FRI signals, is shown to be related to a specific type of structure, which can be characterized by viewing the signal model as a union of subspaces. Finally, we develop a methodology for choosing the optimal sampling kernels based on a generalization of the Karhunen--Loève transform. The results are illustrated for several types of time-delay estimation problems.
description: 23 pages, 4 figures. Submitted to IEEE Trans. Information Theory
title: Emergence of a consonant bias during the first year of life
title: new evidence from own-name recognition
titleType: AlternativeTitle
Creators: name: Von Holzen, Katie
name: Nazzi, Thierry
Publisher: name: TU Dortmund
Year: 2020
Subjects: subject: 400
subject: 430
subject: Konsonant
subject: Sprachverarbeitung
subject: Personenname
subject: Orientierungsreaktion

description: Recent evidence suggests that during the first year of life, a preference for consonant information during lexical processing (consonant bias) emerges, at least for some languages like French. Our study investigated the factors involved in this emergence as well as the developmental consequences for variation in consonant bias emergence. In a series of experiments, we measured 5-, 8-, and 11-month-old French-learning infants orientation times to a consonant or vowel mispronunciation of their own name, which is one of the few word forms familiar to infants at this young age. Both 5- and 8-month-olds oriented longer to vowel mispronunciations, but 11-month-olds showed a different pattern, initially orienting longer to consonant mispronunciations. We interpret these results as further evidence of an initial vowel bias, with consonant bias emergence by 11 months. Neither acoustic-phonetic nor lexical factors predicted preferences in 8- and 11-month-olds. Finally, counter to our predictions, a vowel bias at the time of test for 11-month-olds was related to later productive vocabulary outcomes.
description: Infancy;Vol. 25. 2020, issue 3, pp 319-346
Ascending Cadence Gestures, A New Historical Survey, Part 4d: Hymns, c1780-1860
Creators: name: Neumeyer, David
Publisher: name: The University of Texas at Austin
Year: 2022
Subjects: music history
music theory

description: Part 4 of the New Historical Survey series covers the years 1780-1860. Part 4d samples hymn collections from that period, including one published for the United Brethren (Moravian) in London in 1826 but drawn mostly from an earlier volume published in 1784, the Harmonia coelestis (Hartford, 1799), Harmonia sacra (Andover, 1816), Songs of Zion (New York, 1851), the Wesleyan Hymn and Tune Book (Nashville, 1860), and The Polyphonic or Juvenile Choralist (Cincinnati, 1863).
Complexity of multivariate polynomial evaluation
Creators: name: Ballico, Edoardo
name: Elia, Michele
name: Sala, Massimiliano
Publisher: name: arXiv
Year: 2011
Subjects: subject: Commutative Algebra (math.AC)
subject: Cryptography and Security (cs.CR)
subject: Data Structures and Algorithms (cs.DS)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: 12Y05, 94B27

description: We describe a method to evaluate multivariate polynomials over a finite field and discuss its multiplicative complexity.
Analysis of Educational, Health care, and Military Spending of the Top 10 Nations
Creators: name: Pradip Hayu, M.S.
name: Nima Zahadat, Ph.D.
Publisher: name: Zenodo
Year: 2019

description: Analysis of Economic Growth and Income Inequality

This is a data visualization project to help users understand the educational, health, and military spending of the top 10 nations. The Analysis of Education, Health, and Military .pptx  under the files section provides a comprehensive overview of the project with all the images. Please kindly download the Raw Data.zip folder to view the datasets which were used for the project. The military dataset was obtained from the SIPRI Military Expenditure Database. All the other datasets were obtained from the World Bank Open Database and were Excel files. For the purpose of this project, the data for the years 2009-2014 were selected and analyzed.

Data cleaning was done using Python and Excel and the top 10 nations in respective fields: education, healthcare, and military spending were selected. Data Extraction And Cleaning.ipynb  gives an overview of how the data was cleaned and Cleaned Data.xlsx  represents the final clean dataset. Google API, JavaScript, and HTML were used for visualization purposes. Analysis of Education, Health, and Military.html  displays all the visualization graphics which were produced in this project. In the  Analysis of Education, Health, and Military.mp4  file, I have explained in detail how I have done everything in this project.

Conclusion

Here are some conclusions that I have drawn from this project:

	USA clearly spends the most in all three categories (education, healthcare, military spending) for the years compared 2009-2014 along with the highest GDP.
	In 2014, USA’s expenditure on all three categories was almost equal to the combined expenditures of the other 9 nations.
	The priorities of expenditures are healthcare, education, and military respectively for the majority of the countries. 50% of these top 10 countries spent less than 2% of their GDP on military expenditure. Most of the countries spend more on education and healthcare compared than in the military.
	Australia has the highest per person GDP. Australia tops the list in per person GDP expenditure on education. USA claims the top spot on per person healthcare as a measure of per person GDP. Saudi Arabia spends most of its per person GDP in the military.
	USA is the fastest growing country in educational spending in fixed value followed by Brazil and UK.
	USA is the fastest growing country in healthcare spending in fixed value followed by China and UK.
	The annual growth rate in education shows that Australia is the country with the highest growth rate, and France has the lowest growth rate in education.
	China tops the list in terms of the fastest growing country in healthcare spending in percentage.
Validation of posttraumatic stress disorder (PTSD) and complex PTSD in Chinese children as per the ICD-11 proposals using the International trauma questionnaire
Creators: name: Li, Jina
name: Wang, Weiwei
name: Hu, Wei
name: Yuan, Ziyue
name: Zhou, Ruifu
name: Zhang, Weijun
name: Qu, Zhiyong
Publisher: name: Taylor & Francis
Year: 2021
Subjects: Medicine
Biological Sciences not elsewhere classified
Science Policy

description: Background: Given that the validity of applying complex posttraumatic stress disorder (CPTSD) in nonclinical children remains unclear. Objectives: The current study aimed to explore the factor structure, discriminant validity, and risk factors of ICD-11 posttraumatic stress disorder (PTSD) and CPTSD using the International Trauma Questionnaire. Methods: A total of 3478 trauma-exposed Chinese children aged 9–12 years were included in this study. All participants were assessed for PTSD and CPTSD using the International Trauma Questionnaire (ITQ). Confirmatory factor analysis (CFA) was conducted to explore the factor structure of CPTSD in a sample of Chinese children. Latent class analysis (LCA) was employed to evaluate the discriminant validity of CPTSD symptoms. Multinomial logistic regression analyses determined associations between the different classes and traumatic events. Results: The CFA results showed that the first-order six-factor model was identified as the best-fitting model in Chinese children aged 9–12 years. Four different classes, CPTSD symptoms, PTSD symptoms, disturbances in self-organization (DSO) symptoms, and a low symptom class were found by LCA. Both prolonged interpersonal trauma and other types of trauma were risk factors for the CPTSD class and the PTSD class. Conclusions: The results of this study partially support the factorial validity and strongly support the discriminant validity of the ICD-11 proposals for PTSD and CPTSD in Chinese children, supporting the conceptualization of PTSD and CPTSD as sibling diagnoses based on the ICD-11. However, findings suggest the need for careful consideration of identified trauma types in the ICD-11 proposals. • The first-order six-factor model was identified as the best-fitting model in Chinese children, indicating that symptom structure among a nonclinical population could somehow be different from that among a clinical population. • Four different classes were found, including a class with both PTSD and DSO symptoms, a class with PTSD symptoms, a class with DSO symptoms, and a low symptom class. • More children fell into the PTSD class than into the CPTSD class. • Both prolonged interpersonal trauma and other types of trauma could predict class differences.
A dependent multiplier bootstrap for the sequential empirical copula process under strong mixing
Creators: name: Bücher, Axel
name: Kojadinovic, Ivan
Publisher: name: TU Dortmund
Year: 2013
Subjects: subject: lag window estimator
subject: multiplier central limit theorem
subject: multivariate observations
subject: partial-sum process
subject: ranks
subject: serial dependence
subject: 310
subject: 330
subject: 620

description: Two key ingredients to carry out inference on the copula of multivariate observations are the empirical copula process and an appropriate resampling scheme for the latter. Among the existing techniques used for i.i.d. observations, the multiplier bootstrap of R emillard and Scaillet (2009) frequently appears to lead to inference procedures with the best finite-sample properties. Buecher and Ruppert (2013) recently proposed an extension of this technique to strictly stationary strongly mixing observations by adapting the dependent multiplier bootstrap of Buehlmann (1993, Section 3.3) to the empirical copula process. The main contribution of this work is a generalization of the multiplier resampling scheme proposed by Buecher and Ruppert (2013) along two directions. First, the resampling scheme is now genuinely sequential, thereby allowing to transpose to the strongly mixing setting all of the existing multiplier tests on the unknown copula, including nonparametric tests for change-point detection. Second, the resampling scheme is now fully automatic as a data-adaptive procedure is proposed which can be used to estimate the bandwidth (block length) parameter. A simulation study is used to investigate the finitesample performance of the resampling scheme and provides suggestions on how to choose several additional parameters. As by-products of this work, the weak convergence of the sequential empirical copula process is obtained under many serial dependence conditions, and the validity of a sequential version of the dependent multiplier bootstrap for empirical processes of Buehlmann is obtained under weaker conditions on the strong mixing coefficients and the multipliers.
description: Discussion Paper / SFB 823;25/2013
A Statistical Model of Aggregates Fragmentation
Creators: name: Spahn, F.
name: Neto, E. V.
name: Guimaraes, A. H. F.
name: Gorban, A. N.
name: Brilliantov, N. V.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences

description: A statistical model of fragmentation of aggregates is proposed, based on the stochastic propagation of cracks through the body. The propagation rules are formulated on a lattice and mimic two important features of the process -- a crack moves against the stress gradient and its energy depletes as it grows. We perform numerical simulations of the model for two-dimensional lattice and reveal that the mass distribution for small and intermediate-size fragments obeys a power-law, F(m)\propto m^(-3/2), in agreement with experimental observations. We develop an analytical theory which explains the detected power-law and demonstrate that the overall fragment mass distribution in our model agrees qualitatively with that, observed in experiments.
description: 4 pages, submitted to a peer-reviewed journal
Temperature and Voltage Driven Tunable Metal-Insulator Transition in Individual $W_{x}V_{1-x}O_{2}$ nanowires
Creators: name: Wu, Tai-Lung
name: Whittaker, Luisa
name: Banerjee, Sarbajit
name: Sambandamurthy, G.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Results from transport measurements in individual $W_{x}V_{1-x}O_{2}$ nanowires with varying extents of $W$ doping are presented. An abrupt thermally driven metal-insulator transition (MIT) is observed in these wires and the transition temperature decreases with increasing $W$ content at a pronounced rate of - (48-56) K/$at.%W$, suggesting a significant alteration of the phase diagram from the bulk. These nanowires can also be driven through a voltage-driven MIT and the temperature dependence of the insulator to metal and metal to insulator switchings are studied. While driving from an insulator to metal, the threshold voltage at which the MIT occurs follows an exponential temperature dependence ($V_{TH\uparrow}\propto\exp(\nicefrac{-T}{T_{0}})) $whereas driving from a metal to insulator, the threshold voltage follows $V_{TH\downarrow}\propto\sqrt{T_{c}-T}$ and the implications of these results are discussed.
description: 4 pages, 4 figures
title: Local climate policies in Germany
title: challenges of governance and knowledge
titleType: AlternativeTitle
Creators: name: Zimmermann, Karsten
name: Sinnett, Danielle
Publisher: name: TU Dortmund
Year: 2018
Subjects: subject: 710
subject: Klimaschutz
subject: Gemeindeverwaltung

description: Measures and strategies for climate adaptation and mitigation on the local level have become more or less obligatory. However, local governments face epistemic and organisational uncertainties. New agencies are created, new intra- and inter-organisational relationships are established and new competencies are requested. We argue that knowledge orders are of utmost importance for the institutionalisation of climate policies. We compare knowledge generation, the production of evidence and framing in the local administration of the three cities Munich, Frankfurt am Main and Stuttgart and find commonalities and differences.
description: Cogent Social Sciences;