cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Autonomy of Chinese judges : dynamics of people's courts, the CCP and the public in contemporary judicial reform
Creators: name: Liu, Yue
Publisher: name: University of British Columbia
Year: 2017

description: This dissertation is the outcome of author’s observations and empirical research on judicial reform in China from the 1980s to 2015. Focusing on judicial decision making process of judges in Chinese courts, it attempts to answer the following questions: How do the Chinese Communist Party (CCP), the public, and the internal administrative power—three factors essential to Chinese judges’ judicial decision making process— influence the adjudication of individual cases in various periods of judicial reform? How do the increasingly professionalized judges respond to these institutionalized challenges? Moreover, how do the dynamics generated from the interactions among courts, the CCP, and the public shape the norms and institutional building of judges and courts, and affect judicial reform policies in China? This dissertation adopts historical analysis, documentary analysis, and qualitative analysis to seek answers to these questions. It finds that, first, direct influence of the CCP and the public to the judicial behaviours of individual judges is less evident than indirect influence through the administrative oversight in courts’ internal bureaucracy. Second, the relationships between courts, the CCP, and the public are more dynamic in fragmented China. The norms of Chinese judges’ autonomy and institutional changes in courts are constantly shaped by the expectations and compromise of powers of the CCP, the public, and courts. Finally, building independent and professional judges in dependent courts without insulation from the external influences is not achievable by current Chinese judicial reform agenda.
Engineering a p+ip Superconductor: Comparison of Topological Insulator and Rashba Spin-Orbit Coupled Materials
Creators: name: Potter, Andrew C.
name: Lee, Patrick A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We compare topological insulator materials and Rashba coupled surfaces as candidates for engineering p+ip superconductivity. Specifically, in each type of material we examine 1) the limitations to inducing superconductivity by proximity to an ordinary s-wave superconductor, and 2) the robustness of the resulting superconductivity against disorder. We find that topological insulators have strong advantages in both regards: there are no fundamental barriers to inducing superconductivity, and the induced superconductivity is immune to disorder. In contrast, for Rashba coupled quantum wires or surface states, the the achievable gap from induced superconductivity is limited unless the Rashba coupling is large. Furthermore, for small Rashba coupling the induced superconductivity is strongly susceptible to disorder. These features pose serious difficulties for realizing p+ip superconductors in semiconductor materials due to their weak spin-orbit coupling, and suggest the need to seek alternatives. Some candidate materials are discussed.
description: 10 pages, 4 Figures; Changes for v2: References added, Includes an expanded discussion of surface vs bulk disorder (see Sec. IVc. and Appendix A)
Pound-locking for characterization of superconducting microresonators
Creators: name: Lindström, Tobias
name: Burnett, Jonathan
name: Oxborrow, Mark
name: Tzalenchuk, Alexander Ya.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: We present a new application and implementation of the so-called Pound locking technique for the interrogation of superconducting microresonators. We discuss how by comparing against stable frequency sources this technique can be used to characterize properties of resonators that can not be accessed using traditional methods. Specifically, by analyzing the noise spectra and the Allan deviation we obtain valuable information about the nature of the noise in superconducting planar resonators. This technique also greatly improves the read-out accuracy and measurement throughput compared to conventional methods.
description: 5 pages
The Role of Water on Asphaltenes Aggregation Onset from Petroleum Fluids: Molecular Dynamics Simulations
Creators: name: Yaseen, Salah
Publisher: name: University of Illinois at Chicago
Year: 2020
Subjects: Uncategorized

description: To practicing engineers, the importance of knowledge about the behavior of asphaltenes in petroleum is similar to the knowledge needed by cardiologists regarding cholesterol in the arteries of patients. Asphaltenes, if present in a petroleum fluid, tend to aggregate and deposit in flow paths causing plugging in the reservoir porous media, wellbores, and transmission pipelines. Molecular dynamics simulations are performed on oil/water systems at reservoir conditions to investigate the influence of aqueous solutions on asphaltenes aggregation onset. In addition to pure-water, brine and acid are used to study the effect of salinity and pH. The oil phase consists of asphaltenes and ortho-xylene, in which asphaltene molecules are completely soluble. Molecular dynamics results illustrate that asphaltenes become less soluble in oil when water is partially miscible in the oil phase. The driving force behind asphaltenes aggregation is shown to be an asphaltenes-water hydrogen bonding. Aggregation onset of asphaltenes follows three sequential steps including asphaltenes-water interaction; water bridging; and face-to-face stacking. Molecular dynamics results also reveal that the “salt-in effect” of high-salinity brine (25 wt.% NaCl) causes a significant reduction of the onset of asphaltenes aggregation as compared with pure-water. Furthermore, molecular dynamics results show that the accumulation of the ionized asphaltenes at the oil/aqueous interface is responsible for the asphaltenes aggregation onset when HCl acid (low pH) is used as an aqueous phase.
The cone of Hilbert nullforms
Creators: name: Popov, Vladimir L.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Algebraic Geometry (math.AG)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: We describe a geometric-combinatorial algorithm that allows one, using solely the system of weights and roots, to determine the Hesselink strata of the null-cone of a linear representation of a reductive algebraic group and calculate their dimensions. In particular, it provides a constructive approach to calculating the dimension of the null-cone and determining all its irreducible components of maximal dimension. In the case of the adjoint representation (and, more generally, a $θ$-representation), the algorithm turns into the classification algorithm for the conjugacy classes of nilpotent elements in a semisimple Lie algebra (respectively, homogeneous nilpotent elements in a cyclically graded semisimple Lie algebra).
description: 23 pages, 13 figures
title: LAR_011
Creators: name: Noé Angelé
name: Galinand, Cyrille
name: Université Paris1 Panthéon-Sorbonne
Publisher: name: Archeovision
Year: 2022
Subjects: subject: batonnet
subject: cuisson

description: batonnet de cuisson
description: 1 fichier 3D (ply), 84 fichiers image (jpg)
Population-Level Associations Between Visual Impairment and Functional Difficulties in California
Creators: name: Wang, Karissa M.
name: Coleman, Anne L.
name: Pan, Deyu
name: Yu, Fei
name: Tseng, Victoria L.
Publisher: name: Taylor & Francis
Year: 2024
Subjects: Medicine
Cell Biology
Neuroscience
Biotechnology
Cancer
Science Policy
Mental Health
Hematology

description: The prevalence of visual impairment is increasing, and there is a need to understand the functional implications. Using the American Community Survey (ACS) data, this study examined the relationship between visual impairment and functional difficulties in California. Using the 2010–2014 and 2015–2019 ACS 5-year estimates from the U.S. Census, data were obtained for visual impairment and functional difficulties including hearing, cognitive, ambulatory, self-care, and independent living difficulties. The prevalence of vision impairment and each functional difficulty was calculated on the Medical Service Study Area (MSSA) level in California. Unadjusted and adjusted linear regression models were performed to estimate the association between visual impairment and each functional difficulty, adjusting for age, sex, race and ethnicity, education level, English-speaking ability, poverty status, health insurance status, and urbanity of residence location. The prevalence of visual impairment in California was 2.3% (659,502 of 28,794,572) in 2010–2014 and 2.3% (709,353 of 30,231,767) in 2015–2019 among the population ≥ 18 years old. There were statistically significant associations between the prevalence of vision impairment and increased prevalence of all functional difficulties, with the most positive correlation observed with ambulatory difficulty (slope estimate 0.58 ± 0.072 for 2010–2014 and 0.78 ± 0.082 for 2015–2019 for ambulatory difficulty). There may be population-level impacts of functional consequences from vision impairment, suggesting the need for neighborhood-level investigation and policy-based interventions to address the burden of vision impairment on the population level.
SWIFT J1749.4-2807: A neutron or quark star?
Creators: name: Yu, Junwei
name: Xu, Renxin
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We investigate an unique accreting millisecond pulsar with X-ray eclipses, SWIFT J1749.4$-$2807 (hereafter J1749), and try to limit the binary system by various methods including that of the Roche lobe, the mass-radius relations of both a main sequence (MS) and a white dwarf (WD) companion stars, as well as the measured mass function of the pulsar. The calculations are based on the assumption that the radius of the companion star has reached its Roche radius (or at 90%), but the pulsar's mass has not been assumed to be a certain value. Our results are as follows. The companion star should be a MS. For the case that the radius equals to its Roche one, we have a companion star with mass $M\simeq 0.51 M_{\odot}$ and radius $R_{\rm c}\simeq 0.52R_{\odot}$, and the inclination angle is $i\simeq 76.5^{\circ}$; for the case that the radius reaches 90% of its Roche one, we have $M\simeq 0.43M_{\odot}$, $R_{\rm c}\simeq 0.44R_{\odot}$ and $i\simeq 75.7^{\circ}$. We also obtain the mass of J1749, $M_{\rm p}\simeq 1M_\odot$, and conclude that the pulsar could be a quark star if the ratio of the critical frequency of rotation-mode instability to the Keplerian one is higher than $\sim 0.3$. The relatively low pulsar mass (about $\sim M_\odot$) may also challenge the conventional recycling scenario for the origin and evolution of millisecond pulsars. The results presented in this paper are expected to be tested by future observations.
description: RAA accepted
On the computation of the spectral density of two-point functions: complex masses, cut rules and beyond
Creators: name: Dudal, David
name: Guimaraes, Marcelo S.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We present a steepest descent calculation of the Kallen-Lehmann spectral density of two-point functions involving complex conjugate masses in Euclidean space. This problem occurs in studies of (gauge) theories with Gribov-like propagators. As the presence of complex masses and the use of Euclidean space brings the theory outside of the strict validity of the Cutkosky cut rules, we discuss an alternative method based on the Widder inversion operator of the Stieltjes transformation. It turns out that the results coincide with those obtained by naively applying the cut rules. We also point out the potential usefulness of the Stieltjes (inversion) formalism when non-standard propagators are used, in which case cut rules are not available at all.
description: 16 pages, 4 .pdf figures. v2: version accepted for publication in Physical Review D
Static M-horizons
Creators: name: Gutowski, J.
name: Papadopoulos, G.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We determine the geometry of all static black hole horizons of M-theory preserving at least one supersymmetry. We demonstrate that all such horizons are either warped products R^{1,1} *_w S or AdS_2 *_w S, where S admits an appropriate Spin(7) or SU(4) structure respectively; and we derive the conditions imposed by supersymmetry on these structures. We show that for electric static horizons with Spin(7) structure, the near horizon geometry is a product R^{1,1} * S, where S is a compact Spin(7) holonomy manifold. For electric static solutions with SU(4) structure, we show that the horizon section S is a circle fibration over an 8-dimensional Kahler manifold which satisfies an additional condition involving the Ricci scalar and the length of the Ricci tensor. Solutions include AdS_2 * S^3 * CY_6 as well as many others constructed from taking the 8-dimensional Kahler manifold to be a product of Kahler-Einstein and Calabi-Yau spaces.
description: 15 pages, latex. Section 5 has been added, containing additional details of the analysis of static solutions; typos corrected and references added
The Better Operative Outcomes Software Tool (BOOST) Prospective Study: Improving the Quality of Cataract Surgery Outcomes in Low-Resource Settings
Creators: name: McGuinness, Myra B.
name: Moo, Elise
name: Varga, Beatrice
name: Dodson, Sarity
name: Lansingh, Van Charles
name: Resnikoff, Serge
name: Schmidt, Elena
name: Ravilla, Thulasiraj
name: Subburaman, Ganesh-Babu Balu
name: Khanna, Rohit C.
name: Rathi, Varsha M.
name: Arunga, Simon
name: Limburg, Hans
name: Congdon, Nathan
Publisher: name: Taylor & Francis
Year: 2024
Subjects: subject: Space Science
subject: Medicine
subject: Physiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: Sociology
subject: FOS: Sociology
subject: Mental Health

description: Post-operative vision impairment is common among patients who have undergone cataract surgery in low-resource settings, impacting quality of clinical outcomes and patient experience. This prospective, multisite, single-armed, pragmatic validation study aimed to assess whether receiving tailored recommendations via the free Better Operative Outcomes Software Tool (BOOST) app improved surgical outcomes, as quantified by post-operative unaided distance visual acuity (UVA) measured 1–3 days after surgery. During the baseline data collection round, surgeons in low and middle-income countries recorded clinical characteristics of 60 consecutive cataract cases in BOOST. Additional data on the causes of poor outcomes from 20 consecutive cases with post-operative UVA of <6/60 (4–12 weeks post-surgery) were entered to automatically generate tailored recommendations for improvement, before 60 additional consecutive cases were recorded during the follow-up study round. Average UVA was compared between cases recorded in the baseline study round and those recorded during follow-up. Among 4,233 cataract surgeries performed by 41 surgeons in 18 countries, only 2,002 (47.3%) had post-operative UVA 6/12 or better. Among the 14 surgeons (34.1%) who completed both rounds of the study (1,680 cases total), there was no clinically significant improvement in post-operative average UVA (logMAR units ±SD) between baseline (0.50 ± 0.37) and follow-up (0.47 ± 0.36) rounds (mean improvement 0.03, p = 0.486). Receiving BOOST-generated recommendations did not result in improved UVA beyond what could be expected from prospective monitoring of surgical outcomes alone. Additional research is required to assess whether targeted support to implement changes could potentiate the uptake of app-generated recommendations and improve outcomes.
Polariton propagation in weak confinement quantum wells
Creators: name: Schiumarini, D.
name: Tomassini, N.
name: Pilozzi, L.
name: D'Andrea, A.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Exciton-polariton propagation in a quantum well, under centre-of-mass quantization, is computed by a variational self-consistent microscopic theory. The Wannier exciton envelope functions basis set is given by the simple analytical model of ref. [1], based on pure states of the centre-of-mass wave vector, free from fitting parameters and "ad hoc" (the so called additional boundary conditions-ABCs) assumptions. In the present paper, the former analytical model is implemented in order to reproduce the centre-of-mass quantization in a large range of quantum well thicknesses (5a_B < L < inf.). The role of the dynamical transition layer at the well/barrier interfaces is discussed at variance of the classical Pekar's dead-layer and ABCs. The Wannier exciton eigenstates are computed, and compared with various theoretical models with different degrees of accuracy. Exciton-polariton transmission spectra in large quantum wells (L>> a_B) are computed and compared with experimental results of Schneider et al.\cite{Schneider} in high quality GaAs samples. The sound agreement between theory and experiment allows to unambiguously assign the exciton-polariton dips of the transmission spectrum to the pure states of the Wannier exciton center-of-mass quantization.
description: 15 pages, 15 figures; will appear in Phys.Rev.B
title: LAR_010
Creators: name: Noé Angelé
name: Galinand, Cyrille
name: Université Paris1 Panthéon-Sorbonne
Publisher: name: Archeovision
Year: 2022
Subjects: subject: cuisson
subject: batonnet

description: batonnet de cuisson
description: 1 fichier 3D (ply), 63 fichiers image (jpg)
title: Ismailabad_5
Creators: name: Noé Angelé
name: Galinand, Cyrille
name: Université Paris1 Panthéon-Sorbonne
Publisher: name: Archeovision
Year: 2022
Subjects: subject: Néolithique
subject: âge du bronze
subject: tesson

description: tesson
description: 1 fichier 3D (ply), 72 fichiers image (jpg)
The Impact of Lyman alpha Trapping on the Formation of Primordial Objects
Creators: name: Latif, M. A.
name: Zaroubi, S.
name: Spaans, M.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Numerous cosmological simulations have been performed to study the formation of the first objects. We present the results of high resolution 3-D cosmological simulations of primordial objects formation using the adaptive mesh refinement code FLASH by including in an approximate manner the radiative transfer effects of Lyman alpha photons. We compare the results of a Lyman alpha trapping case inside gas clouds with atomic and molecular hydrogen cooling cases.The principal objective of this research is to follow the collapse of a zero metallicity halo with an effective equation of state (that accounts for the trapping) and to explore the fate of a halo in each of the three cases, specifically, the impact of thermodynamics on fragmentation of halos.Our results show that in the case of Lyman alpha trapping, fragmentation is halted and a massive object is formed at the center of a halo. The temperature of the gas remains well above $10^{4}$ K and the halo is not able to fragment to stellar masses. In the atomic cooling case, gas collapses into one or two massive clumps in contrast to the Lyman alpha trapping case. For the molecular hydrogen cooling case, gas cools efficiently and fragments.The formation of massive primordial objects is thus strongly dependent on the thermodynamics of the gas. A salient feature of our results is that for the formation of massive objects, e.g. intermediate mass black holes, feedback effects are not required to suppress $H_{2}$ cooling, as molecular hydrogen is collisionally dissociated at temperatures higher than $10^{4}$ K as a consequence of Lyman alpha trapping.
description: 13 pages, 19 figures, Accepted for publication in MNRAS
Computer Aided Assessment of Certain Neuromuscular Disorders Based on Surface Electromyography
Creators: name: Kaplanis, P. A.
Publisher: name: Zenodo
Year: 2004

description: The objective of this study was to investigate the usefulness of Surface Electromyography (SEMG), in the clinical laboratory. Towards this goal, recordings from 94 normal subjects (NOR) and 20 neuromuscular subjects (11 myopathy (MYO) and 9 neuropathy (NEURO)) were recorded at 10, 30, 50, 70 and 100% of maximum voluntary contraction. These signals were analysed in the time, frequency and bi-frequency domains. The time-domain parameters, turns and zero crossings per second, increased with force level (FL), for all three groups. Frequency-domain, median and mean frequencies, decreased with FL for the NOR group. Frequency at maximum power was unaffected with FL, but differences were found between all groups of subjects. Maximum and total power increased with FL for all groups, with MYO subjects having significantly higher values for the latter parameter. Bi-frequency parameter, bispectrum peak amplitude increased with FL only for the NOR group and significant differences were found between all three groups. Significant differences between the Gaussianity of the NEURO group and the other two groups were found. The location and slope of the bispectrum peak amplitude was unaffected with FL, however significant differences between the NEURO group and the other two groups were found. Repeatability and reliability measurements on a selected group of subjects gave very good results. Correlation analysis on all possible parameter pairs was performed for normal values. Excellent and good results are presented and compared with the corresponding pairs for patient data, where differences for certain parameters were found. It was shown that all parameters investigated were not affected by age or gender. Cluster analysis using the KNN algorithm was used to perform two (a. NORMAL/ABNORMAL (MYO and NEURO) and b. MYO/NEURO), and three class (NOR/MYO/NEURO) classification models. The percentage of correct classifications score for NORMAL/ABNORMAL and MYO/NEURO models were 3 94.4% and 70% respectively. The percentage of correct classifications score for the three class models varied from 59.3% when an equal number of subjects (9 NOR/9 MYO/9 NEURO) was used to 82.9% when 91 NOR/11 MYO/9 NEURO subjects were used. Self Organising Feature Maps give visually the mapping of two (a. NORMAL/ABNORMAL and b. MYO/NEURO) and three (NOR/MYO/NEURO) class models, with the former group presenting a better discrimination. Based on the findings of this study, it is concluded that the SEMG system investigated can be used successfully and effectively as an additional tool by the neurophysiologist for the assessment and monitoring of muscle function. It is proposed, that the system can be used “blindly” without sharing any prior information or knowledge about the possible classification of the subject, by the referring neurophysiologist.
Strong Generators in Dperf(X) for Schemes with a Separator
Creators: name: Jatoba, Victor B.
Publisher: name: University of Illinois at Chicago
Year: 2020
Subjects: Uncategorized

description: This work extends the result from Amnon Neeman regarding strong generators in Dperf(X), from X being a quasicompact, separated scheme to X being quasicompact, quasiseparated scheme that admits a separator with some extra conditions. Neeman's result states a necessary and su cient condition for Dperf(X) to be regular. Together with being proper over a noetherian commutative ring, the conditions above give an interesting description for when an R-linear functor H is representable.
Azimuthal asymmetries in the unpolarized SIDIS cross section at COMPASS
Creators: name: Sbrizzai, Giulio
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The study of the spin structure of the nucleon and of the effects rising from the quarks transverse momentum are part of the scientific program of COMPASS, a fixed target experiment at the CERN SPS. The azimuthal asymmetries which appear in the cross-section of SIDIS off unpolarized targets can give insights on the intrinsic momentum structure of the nucleon and on the possible correlation between transverse spin and transverse momentum of the quarks. Here we present the new results for these asymmetries obtained from the COMPASS data collected with a 160 GeV/c positive muon beam impinging on a $^6LiD$ target. The asymmetries are measured for both positive and negative hadrons, and their dependence on several kinematical variable has been studied
description: proceedings of SPIN2010 conference (September-October 2010, Juelich-Germany)
Table S3.2 - Species evaluated, conservation target and amount preserved
Creators: name: Fajardo, Javier
Publisher: name: Zenodo
Year: 2019

description: Fajardo, J. (2019) Table S3.2 - Chapter III: Effectiveness of protected areas in representing biodiversity has improved with recent expansions, but remains insufficient in the tropical Andes. In Optimizing the design of protected area networks in tropical Andean countries. PhD Thesis. Universidad Internacional Menendez Pelayo.
Colombian Ocular Diseases Epidemiology Study (CODES): Prevalence Incidence, and Sociodemographic Characterization of Vision Impairment (2015–2019), A Nationwide Study
Creators: name: Mejía-Salgado, Germán
name: Cifuentes-González, Carlos
name: Barraquer-López, Doménico
name: Pineda-Sierra, Juan Sebastián
name: Rodríguez-Rodríguez, Camilo Andrés
name: Saboya-Galindo, Paola
name: Lesley-Cruz, Danna
name: de-la-Torre, Alejandra
Publisher: name: Taylor & Francis
Year: 2024
Subjects: subject: Medicine
subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Cancer
subject: Science Policy
subject: Mental Health
subject: Computational Biology

description: To describe the prevalence, incidence, and sociodemographic characterization of moderate to severe vision impairment (MSVI) and blindness in Colombia based on the National Health Registry Integrated Social Protection Information System (SISPRO) Database. We performed a nationwide population-based study using SISPRO and the International Classification of Diseases. Total and new cases were identified to calculate the prevalence and incidence per 100,000 inhabitants of MSVI and blindness between 2015 and 2019. Blindness was defined as a best-corrected visual acuity (BCVA) of less than 20/400 in the better-seeing eye. Meanwhile, MSVI is a BCVA from 20/70 to equal or better than 20/400 in the better-seeing eye. An ANOVA test was performed to identify age differences. A conditional autoregressive model was also employed to depict standardized morbidity rate maps. From the 50 million inhabitants, the average prevalence and incidence of MSVI were 13.94 and 13.34 between 2015 and 2019, respectively, while for blindness, they were 4.03 and 3.53. Females accounted for most reported cases, and there was a notable shift towards individuals over 50 years (p < 0.001). Valle del Cauca was the region with the most cases reported and the greatest disease burden. This is the first nationwide population-based study describing the prevalence, incidence, and sociodemographic characterization of blindness and MSVI in Colombia. In recent years, there has been an increased number of cases, prevalence, and incidence, with females over 50 particularly affected. This research provides insight into the country’s vision impairment epidemiology landscape and contributes to formulating public health policies to improve eye health care.
A general comparison theorem
Creators: name: Semay, Claude
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Using the Hellmann-Feynman theorem, a general comparison theorem is established for an eigenvalue equation of the form $(T+V)|ψ> = E|ψ>$, where $T$ is a kinetic part which depends only on momentums and $V$ is a potential which depends only on positions. We assume that $H^{(1)}=T+V^{(1)}$ and $H^{(2)}=T+V^{(2)}$ ($H^{(1)}=T^{(1)}+V$ and $H^{(2)}=T^{(2)}+V$) support both discrete eigenvalues $E^{(1)}_{\{α\}}$ and $E^{(2)}_{\{α\}}$, where ${\{α\}}$ represents a set of quantum numbers. We prove that, if $V^{(1)} \le V^{(2)}$ ($T^{(1)} \le T^{(2)}$) for all position (momentum) variables, then the corresponding eigenvalues are ordered $E^{(1)}_{\{α\}} \le E^{(2)}_{\{α\}}$. Some analytical applications are given.
description: Presentation improved, results unchanged. Version to appear in Phys. Rev. A
title: IAA84
Creators: name: Théa Poullain
name: Galinand, Cyrille
name: Université Paris1 Panthéon-Sorbonne
Publisher: name: Archeovision
Year: 2022
Subjects: subject: chapiteau
subject: Cathédrale Notre-Dame de Paris

description: moulage d'un demi chapiteau de la cathédrale Nodre-Dame de Paris
description: 1 fichier 3D (ply), 152 fichiers image (jpg)
Self-reported Visual Difficulty, Age-related Eye Disease, and Neuropsychiatric Outcomes in Older Adults
Creators: name: Hamedani, Ali G.
name: Willis, Allison W.
name: Ying, Gui-Shuang
Publisher: name: Taylor & Francis
Year: 2024
Subjects: subject: Medicine
subject: Cell Biology
subject: Neuroscience
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Immunology
subject: FOS: Clinical medicine
subject: Mental Health

description: Self-reported visual difficulty is consistently associated with dementia and other neuropsychiatric outcomes, but studies of specific age-related eye diseases have yielded conflicting results. We conducted a retrospective cohort study using data from The National Health and Aging Trends Study, an ongoing nationally representative survey of older U.S. adults (n = 10,089). All subjects are screened for self-reported visual difficulty annually. Using linked Medicare claims data, we identified subjects with age-related macular degeneration (AMD), primary open-angle glaucoma (POAG), diabetic retinopathy, and cataract. For each condition, controls with complete Medicare eligibility and at least one eye care encounter were selected. We used semiparametric discrete time proportional hazards models to measure associations with incident dementia, and generalized estimating equations to examine longitudinal associations with depression, anxiety, and hallucinations, adjusting for baseline demographics and time-varying comorbidities. Self-reported visual difficulty was associated with dementia (HR 1.16, 95% CI: 1.00–1.34), depression (OR 1.14, 95% CI: 1.04–1.26), anxiety (OR 1.17, 95% CI: 1.06–1.29), and hallucinations (OR 1.54, 95% CI: 1.29–1.84). Diabetic retinopathy was associated with depression (OR 1.31, 95% CI: 1.05–1.64), and cataracts were associated with a lower risk of depression (OR 0.84, 95% CI: 0.74–0.95) and anxiety (OR 0.86, 95% CI: 0.75–0.99). There were no other associations between age-related eye disease and neuropsychiatric outcomes. Self-reported visual difficulty is associated with dementia and other neuropsychiatric outcomes to a greater degree than age-related eye disease. These findings highlight the distinction between self-reported vision and clinically diagnosed eye disease with regard to health outcomes in older adults.
Essays in Empirical Finance: Common Ownership Linkage
Creators: name: Haesung Kim
Publisher: name: University of Illinois at Chicago
Year: 2020
Subjects: Uncategorized

description: This dissertation consists of two empirical essays that study issues related to common ownership. The first essay provides empirical evidence of return predictability across common ownership linked firms. A common ownership momentum-based long-short strategy earns a significant average monthly abnormal returns of 78 basis points from July 1982 to June 2017. This return predictability is distinct from the previously known industry, customer-supplier, standalone- conglomerate momentum, or technology lead-lag effects. A flow-based explanation can account for the observed return predictability with the common ownership-linked returns affecting capital flows to institutional portfolios and such expected flow-induced trading influencing stock returns. In addition, the return predictability is more pronounced for focal firms with less attention from investors and more limits to arbitrage. The second essay investigates the peer effect of common ownership-linked firms on corporate dividend and investment decisions. We first show that common ownership peer firms are influential in determining U.S. firms’ dividend yield and investment capital ratio. Such an effect is distinct from the previously known industry peer effects, more pronounced among more connected firms and firms facing higher uncertainty. Overall, these findings indicate that firms imitate their peers to maintain interest from institutional investors, and/or firms mimic their peers to deal with uncertainty in their decision making.
title: IAA85
Creators: name: inconnu
name: Galinand, Cyrille
name: Université Paris1 Panthéon-Sorbonne
Publisher: name: Archeovision
Year: 2022
Subjects: subject: buste
subject: de
subject: sybille

description: Moulage de buste de sybille
description: 1 fichier 3D (ply), 76 fichiers image (jpg)
An individual-based modelling approach to estimate landscape connectivity : a case study with bighorn sheep (Ovis canadensis) and tiger salamanders (Ambystoma mavortium) in the Okanagan Valley, British Columbia
Creators: name: Allen, Corrie
Publisher: name: University of British Columbia
Year: 2017

description: Preserving connectivity, or the ability of a landscape to support species movement, is among the most commonly recommended strategies to reduce the negative effects of climate change and human land use development on species. Connectivity analyses have traditionally used a corridor-based approach and rely heavily on least cost path modeling and circuit theory to delineate corridors. Individual-based models are gaining popularity as a more ecologically realistic method of estimating landscape connectivity; however, this remains a relatively unexplored approach. The overarching aim of this thesis was to assess the utility of an individual-based modeling approach as a tool for identifying species-specific functional connectivity across a landscape and to apply this approach to identify a network of wildlife corridors in the Okanagan Valley for two selected species of interest: the bighorn sheep (Ovis canadensis) and tiger salamanders (Ambystoma mavortium). A series of computer models that simulate sheep and tiger salamanders traversing a landscape by following simple movement rules were developed. Simulations were then run to determine baseline connectivity between subpopulations of both species and the impact of various land management and environmental change scenarios on connectivity. The results of this work show how species might use the Okanagan landscape to colonize suitable yet unoccupied habitats, move in response to climate change, and breed with subpopulations that are spatially isolated. More generally, the use of an IBM in this study highlights the power of this method to identify how species might make broad use of a landscape for movement and migration. It identifies connectivity to areas that are suitable yet not currently occupied, emphasizing the importance of designing conservation plans that encompass more than just current species ranges. The individual-based approach also provided a more realistic representation of how animals perceive and move in their habitats than traditional approaches to identify corridors such as least cost path analysis. Application of this approach elsewhere can provide effective quantitative support for decision makers seeking to incorporate wildlife conservation and connectivity into land use planning.
Nucleon-Nucleon Potential and its Non-locality in Lattice QCD
Creators: name: Murano, Keiko
name: Ishii, Noriyoshi
name: Aoki, Sinya
name: Hatsuda, Tetsuo
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: By the quenched lattice QCD simulation for two nucleons with finite scattering energy, validity of the delivative expansion of the general nucleon-nucleon potential U(r,r') = V(r, {\nabla}_r) δ^3(r-r') is studied. The relative kinetic energy between two nucleons is introduced through the anti-periodic boundary condition in the spatial directions. On a hypercubic lattice with the lattice spacing a ~ 0.137 fm and the spatial extent L_s ~ 4.4 fm with the pion mass m_π ~ 530 MeV, the local potentials for two different energies (E ~ 0 MeV and 45 MeV) are compared and found to be identical within statistical errors, which validates the local approximation of U(r,r') up to E=45 MeV for the central and tensor potentials. Central potentials in the spin-singlet channel for different orbital angular momentums (l=0 and l=2) at E ~ 45 MeV are also found to be the same within the errors, which also supports the local approximation.
description: 15 pages, 16 figures
The Economics of Net Neutrality: Implications of Priority Pricing in Access Networks
Creators: name: Wiewiorra, Lukas
Publisher: name: Karlsruhe
Year: 2012
Subjects: Netzneutralität
Quality of Service
Netzindustie
Regulierung

description: This work systematically analyzes Net Neutrality from an economic point of view. To this end a framework is developed which helps to structure the Net Neutrality debate. Furthermore, the introduction of prioritization is studied by analyzing potential effects of Quality of Service (QoS) on Content and Service Providers (CSPs) and Internet Users (IUs).
Superconformal Boundaries in $4-\epsilon$ dimensions
Creators: name: Gimenez-Grau, Aleix
name: Liendo, Pedro
name: Vliet, Philine Julia Van
Publisher: name: Deutsches Elektronen-Synchrotron, DESY, Hamburg
Year: 2020
Subjects: * Automatic Keywords *
correlation function: chiral
space-time: dimension
dimension: 3
n-point function: 3
supersymmetry
conformal
bootstrap
two-point function
Wess-Zumino model
Feynman graph
supercharge
superspace
algebra

description: Boundaries in three-dimensional $\mathcal{N}=2$ superconformal theories may preserve one half of the original bulk supersymmetry. There are two possibilities which are characterized by the chirality of the leftover supercharges. Depending on the choice, the remaining $2d$ boundary algebra exhibits $\mathcal{N}=(0,2)$ or $\mathcal{N}=(1,1)$ supersymmetry. In this work we focus on correlation functions of chiral fields for both types of supersymmetric boundaries. We study a host of correlators using superspace techniques and calculate superconformal blocks for two- and three-point functions. For $\mathcal{N}=(1,1)$ supersymmetry, some of our results can be analytically continued in the spacetime dimension while keeping the codimension fixed. This opens the door for a bootstrap analysis of the $\epsilon$-expansion in supersymmetric BCFTs. Armed with our analytically-continued superblocks, we prove that in the free theory limit two-point functions of chiral (and antichiral) fields are unique. The first order correction, which already describes interactions, is universal up to two free parameters. As a check of our analysis, we study the Wess-Zumino model with a supersymmetric boundary using Feynman diagrams, and find perfect agreement between the perturbative and bootstrap results.
The nearby eclipsing stellar system delta Velorum. II. First reliable orbit for the eclipsing pair
Creators: name: Pribulla, T.
name: Merand, A.
name: Kervella, P.
name: Vaňko, M.
name: Stevens, I. R.
name: Chini, R.
name: Hoffmeister, V.
name: Stahl, O.
name: Berndt, A.
name: Mugrauer, M.
name: Eiff, M. Ammler-von
Publisher: name: arXiv
Year: 2010
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Context. The nearby multiple system delta Velorum contains a widely detached eclipsing binary and a third component. Aims. We take advantage of this system offering the opportunity to determine the set of fundamental parameters (masses, luminosities, and radii) of three coeval stars with sufficient precision to test models of stellar evolution. Methods. Extensive high-resolution spectroscopy is analyzed by the broadening function technique to provide the first spectroscopic orbit of the eclipsing pair. Simultaneous analysis of the spectroscopic data and the SMEI satellite light curve is performed to provide astrophysical parameters for the components. We use a modified Roche model assuming an eccentric orbit and asynchronous rotation. Results. The observations show that components of the eclipsing pair rotate at about two-thirds of the break-up velocity, which excludes any chemical peculiarity and results in a non-uniform surface brightness. Although the inner orbit is eccentric, no apsidal motion is seen during the SMEI photometric observations. For the inner orbit, the orbital parameters are eccentricity e = 0.29, longitude of the periastron passage omega = 109 degrees, and inclination 89.0 degrees. Conclusions. Component's masses MAa = 2.53+/-0.11 Msun, MAb = 2.37+/-0.10 Msun and MB = 1.5 Msun combined with inferred radii of Aa and Ab components indicate that the eclipsing pair has already left the Main sequence and the estimated age of the system is about 400 Myr.
description: accepted to Astron. Astrophys., 8 pages, 6 figures, echelle spectra available from the first author, later from CDS
Improve classification on infrequent discourse relations via training data enrichment
Creators: name: Jiang, Kailang
Publisher: name: University of British Columbia
Year: 2017

description: Discourse parsing is a popular technique widely used in text understanding, sentiment analysis, and other NLP tasks. However, for most discourse parsers, the performance varies significantly across different discourse relations. In this thesis, we first validate the underfitting hypothesis, i.e., the less frequent a relation is in the training data, the poorer the performance on that relation. We then explore how to increase the number of positive training instances, without resorting to manually creating additional labeled data. We propose a training data enrichment framework that relies on co-training of two different discourse parsers on unlabeled documents. Importantly, we show that co-training alone is not sufficient. The framework requires a filtering step to ensure that only “good quality” unlabeled documents can be used for enrichment and re-training. We propose and evaluate two ways to perform the filtering. The first is to use an agreement score between the two parsers. The second is to use only the confidence score of the faster parser. Our empirical results show that agreement score can help to boost the performance on infrequent relations, and that the confidence score is a viable approximation of the agreement score for infrequent relations.
Photonic band-gap properties for two-component slow light
Creators: name: Ruseckas, J.
name: Kudriasov, V.
name: Juzeliunas, G.
name: Unanyan, R. G.
name: Otterbach, J.
name: Fleischhauer, M.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We consider two-component "spinor" slow light in an ensemble of atoms coherently driven by two pairs of counterpropagating control laser fields in a double tripod-type linkage scheme. We derive an equation of motion for the spinor slow light (SSL) representing an effective Dirac equation for a massive particle with the mass determined by the two-photon detuning. By changing the detuning the atomic medium acts as a photonic crystal with a controllable band gap. If the frequency of the incident probe light lies within the band gap, the light tunnels through the sample. For frequencies outside the band gap, the transmission probability oscillates with increasing length of the sample. In both cases the reflection takes place into the complementary mode of the probe field. We investigate the influence of the finite excited state lifetime on the transmission and reflection coefficients of the probe light. We discuss possible experimental implementations of the SSL using alkali atoms such as Rubidium or Sodium.
description: 7 figures
Quality of Refractive Error Care in Cambodia: An Unannounced Standardized Patient Study
Creators: name: Burnett, Anthea
name: Meng, Ngy
name: Seiha, Do
name: Kong, Neath
name: Chea, Seila
name: Dean, Malis
name: Horm, Piseth
name: San Meas, Kim
name: Varga, Beatrice
name: Ho, Suit May
name: McGuinness, Myra
name: Lee, Ling
Publisher: name: Taylor & Francis
Year: 2024
Subjects: subject: Medicine
subject: Pharmacology
subject: Biotechnology
subject: Chemical Sciences not elsewhere classified
subject: Sociology
subject: FOS: Sociology
subject: Mental Health

description: Quality-of-care in refractive error services is essential, as it directly affects vision outcomes, wellbeing, educational attainment, and workforce participation. In Cambodia, uncorrected refractive error is a leading cause of mild and moderate vision impairment in adults. We evaluated the quality of refractive error care in Cambodia by estimating the proportion of prescribed and dispensed spectacles appropriate for people’s refractive error needs and factors associated with spectacle quality. A cross-sectional protocol was employed with 18 Khmer-speaking adult participants observing testing procedures in 156 optical services across six provinces in 2022. A total of 496 dispensed spectacles were assessed against spectacle quality indicators. The analysis revealed that 35.1% of dispensed spectacles were of optimal quality. The most common error observed in sub-optimal spectacles was the presence of horizontal prism outside of tolerance limits. The study also found that 44.0% of emmetrope visits involved unnecessary prescription spectacle recommendations, and 18.3% of written prescriptions did not correspond with dispensed spectacles. Sex differences were observed, with men predominantly providing refractive error care and women more likely to be unnecessarily recommended prescription spectacles. The findings highlight the importance of prioritizing quality-of-care in refractive error services. A key recommendation is to consider regulatory mechanisms to ensure optical services employ appropriately qualified staff. Additionally, efforts should be made to eliminate unnecessary prescriptions –– especially for emmetropes and females –– standardize written prescriptions, ensure consistent pupil distance measurements, reduce reliance on autorefraction, and address the gender imbalance in the refractive error workforce.
La pietra verde del Viso
Creators: name: Sparavigna, Amelia Carolina
Publisher: name: Zenodo
Year: 2016
Subjects: Neolitico
Pietra verde del Monviso
Giadeite
Piemonte
Valle Po
Saluzzo

description: Questa è una presentazione che propone quanto contenuto nel Google Site al link https://sites.google.com/site/pietraverdedelviso/home . Contiene uno studio scaturito dalla lettura di news riguardanti la Valle Po del Neolitico, e il suo materiale pregiato, la Giadeite (le news erano del 2016, e non più recenti, sottolineato per evitare fraintendimenti). La Giadeite era raccolta dai ''cercatori della pietra verde'' ai piedi del Monviso. Era materiale litico di elevata durezza ed esteticamente pregevole. Questa Giadeite, che oggi è conosciuta come la pietra verde del Monviso, si era sparsa per tutta l'Europa, anche nelle Isole Britanniche, per essere trasformata in asce ed altri strumenti litici, oggetti di prestigio e simboli di potere. La data della presentazione(30 Agosto 2016) è quella dell'ultimo aggiornamento della pagina web del sito.