cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Risky Sexual Practice and Factors Related Among People Living With HIV/AIDS Attending Art in Addis Ababa Public Hospitals
Creators: name: Dessie, Yadeta
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2009

description: Background: The sexual behavior of HIV infected people has received little serious attention for a range of factors. Even though many of them avoid risky sexual behavior, a substantial number continue to engage in risky sexual practices that not only transmit the virus to others but also place themselves at risk of contracting secondary infection. Objective: This study aimed to assess risky sexual practice and factors related among people living with HIV/AIDS (PLWHA) attending ART in Addis Ababa public hospitals Methods: A cross-sectional quantitative study supplemented with a qualitative study was conducted among ART attendants in Addis Ababa public hospitals from February to March, 2009. Results: The majority of the respondents were using condoms consistently; however, significant proportion (36.9%) had a history of unprotected sex in the three months prior to the study period. The major reasons given for not using condoms were partner's dislike of them, both partners being positive for HIV and need to have a child. Discussion about condom use and safe sex (AOR=7.23,95% CI: 4.14, 12.63), negative safer sex pleasure (AOR=2.39, 95% CI: 1.52, 3.76), multiple partnerships (AOR=2.67,95% CI:1.09, 6.57), negative partner serostatus (AOR=0.33, 95% CI:0.14,0.80), unknown partner serostatus (AOR=0.19 CI 95% CI: 0.09,0.39) and self-efficacy to use condom ( AOR =3.29, 95% CI: 2.07, 5.23) are factors associated with unprotected sex. Conclusion and Recommendation: Even if majority of ART attendants used condoms consistently, still considerable number engaged in unprotected sex with HIV positive, negative or unknown serostatus partner. This would have negative ix effect in terms of reinfection with a new strain, other sexually transmitted infections and further transmission of the virus. So, interventions targeted to those factors related with unprotected sex practice were recommended to be addressed through counseling, teaching, encouragements and other possible approaches
Comparative safety and health care expenditures among patients with chronic myeloid leukemia initiating first-line imatinib, dasatinib, or nilotinib
Creators: name: Lafata, J.E.
name: Muluneh, B.
name: Wood, W.A., Jr.
name: Dusetzina, S.B.
name: Lund, J.L.
name: Cole, A.L.
Publisher: name: American Society of Clinical Oncology
Year: 2020

description: PURPOSE Tyrosine kinase inhibitors (TKIs) have dramatically improved survival for patients with chronic myeloid leukemia (CML). No overall survival differences were observed between patients initiating first- and second-generation TKIs in trials; however, real-world safety and cost outcomes are unclear. We evaluated comparative safety and health care expenditures between first-line imatinib, dasatinib, and nilotinib among patients with CML. PATIENTS AND METHODS Eligible patients had one or more fills for imatinib, dasatinib, or nilotinib in the MarketScan Commercial and Medicare Supplemental databases between January 1, 2011, and December 31, 2016 (earliest fill is the index date), 6 months pre-index continuous enrollment, CML diagnosis, and no TKI use in the pre-index period. Hospitalizations or emergency department visits (safety events) were compared across treatment groups using propensity-score-weighted 1-year relative risks (RRs) and subdistribution hazard ratios (HRs). Inflation-adjusted annual health care expenditures were compared using quantile regression. RESULTS Eligible patients included 1,417 receiving imatinib, 1,067 receiving dasatinib, and 647 receiving nilotinib. The 1-year risk of safety events was high: imatinib, 37%; dasatinib, 44%; and nilotinib, 40%, with higher risks among patients receiving dasatinib (RR, 1.17; 95% CI, 1.06 to 1.30) and nilotinib (RR, 1.07; 95% CI, 0.93 to 1.23) compared with those receiving imatinib. Over a median of 1.7 years, the cumulative incidence of safety events was higher among patients receiving dasatinib (HR, 1.23; 95% CI, 1.10 to 1.38) and nilotinib (HR, 1.08; 95% CI, 0.95 to 1.24) than among those receiving imatinib. One-year health care expenditures were high (median, $125,987) and were significantly higher among patients initiating second-generation TKIs compared with those receiving imatinib (difference in medians: dasatinib v imatinib, $22,393; 95% CI, $17,068 to $27,718; nilotinib v imatinib, $19,463; 95% CI, $14,689 to $24,236). CONCLUSION Patients receiving imatinib had the lowest risk of hospitalization or emergency department visits and 1-year health care expenditures. Given a lack of significant differences in overall survival, imatinib may represent the ideal first-line therapy for patients, on average.
Factors Assessing Science's Self-Presentation (FASS model) and their Effect on Conservatives’ and Liberals’ Support for Funding Science (Data and Code)
Creators: name: Jamieson, Patrick E.
name: Walter, Dror
name: Jamieson, Kathleen Hall
name: Yotam Ophir
Publisher: name: Open Science Framework
Year: 2023
Subjects: subject: Social and Behavioral Sciences

description: Data and Code for Ophir et al., 2023 (Factors Assessing Science's Self-Presentation (FASS model) and their Effect on Conservatives’ and Liberals’ Support for Funding Science). 10.1073/pnas.2213838120 A confirmatory factor analysis of responses to thirteen questions from a 2022 national probability sample of 1,154 US adults supported the existence of five factors that we argue assess perceptions of science's self-presentation (FASS). These factors also predict support for increasing federal funding of science and, separately, supporting federal funding of basic research. Each of the factors reflects perceptions of a key facet of scientists’ self-presentation, science/scientists’ adherence to professed norms, or science’s benefits: specifically, that scientists are Credible, Prudent and Unbiased, and that science is Self-Correcting and Beneficial. The FASS model explained 40.6% of the variance in support for increasing federal funding for science and 33.7% in support for basic research. For both dependent variables, conservatives were less likely to be supportive when they perceived that science/scientists fail to overcome biases. The interactions between political ideology and both Prudence and Beneficial, however, were significant only when predicting Basic Research support. In that case, there were no differences between conservatives and liberals when perceptions of benefit were low, but when high, liberals’ perception of benefit had a stronger association with support for funding than conservatives’. Among those perceiving that scientists lack prudence, liberals were more likely to support funding basic research than conservatives, but the difference disappeared when perceptions of prudence were very high. The factors could serve as across-time indicators of the public’s assessment of the state of science.
A Measurement of the Galaxy Group-Thermal Sunyaev-Zel'dovich Effect Cross-Correlation Function
Creators: name: Vikram, Vinu
name: Lidz, Adam
name: Jain, Bhuvnesh
Publisher: name: arXiv
Year: 2016
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Stacking cosmic microwave background (CMB) maps around known galaxy clusters and groups provides a powerful probe of the distribution of hot gas in these systems via the Sunyaev-Zel'dovich (SZ) effect. A stacking analysis allows one to detect the average SZ signal around low mass halos, and to extend measurements out to large scales, which are too faint to detect individually in the SZ or in X-ray emission. In addition, cross correlations between SZ maps and other tracers of large-scale structure (with known redshifts) can be used to extract the redshift-dependence of the SZ background. Motivated by these exciting prospects, we measure the two-point cross-correlation function between a catalog of $\sim 380,000$ galaxy groups (with redshifts spanning $z=0.01-0.2$) from the Sloan Digital Sky Survey (SDSS) and Compton-y parameter maps constructed by the Planck collaboration. We find statistically significant correlations between the group catalog and Compton-y maps in each of six separate mass bins, with estimated halo masses in the range $10^{11.5-15.5} M_\odot/h$. We compare these measurements with halo models of the SZ signal, which describe the stacked measurement in terms of one-halo and two-halo terms. The one-halo term quantifies the average pressure profile around the groups in a mass bin, while the two-halo term describes the contribution of correlated neighboring halos. For the more massive groups we find clear evidence for the one- and two-halo regimes, while groups with mass below $10^{13} M_\odot/h$ are dominated by the two-halo term given the resolution of Planck data. We use the signal in the two-halo regime to determine the bias-weighted electron pressure of the universe: $\langle b P_e \rangle= 1.50 \pm 0.226 \times 10^{-7}$ keV cm$^{-3}$ (1-$σ$) at $z\approx 0.15$.
description: 17 pages, 11 figures
Effective electric field: quantifying the sensitivity of searches for new P,T-odd physics with EuCl$_3\cdot$6H$_2$O
Creators: name: Sushkov, Alexander O.
name: Sushkov, Oleg P.
name: Yaresko, Alexander
Publisher: name: arXiv
Year: 2023
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: Laboratory-scale precision experiments are a promising approach to searching for physics beyond the standard model. Non-centrosymmetric solids offer favorable statistical sensitivity for efforts that search for new fields, whose interactions violate the discrete parity and time-reversal symmetries. One example is the electric Cosmic Axion Spin Precession Experiment (CASPEr-e), which is sensitive to the defining interaction of the QCD axion dark matter with gluons in atomic nuclei. The effective electric field is the parameter that quantifies the sensitivity of such experiments to new physics. We describe the theoretical approach to calculating the effective electric field for non-centrosymmetric sites in ionic insulating solids. We consider the specific example of the EuCl$_3\cdot$6H$_2$O crystal, which is a particularly promising material. The optimistic estimate of the effective electric field for the $^{153}$Eu isotope in this crystal is 10 MV/cm. The calculation uncertainty is estimated to be two orders of magnitude, dominated by the evaluation of the Europium nuclear Schiff moment.
Little Dorrit, no. 05
Creators: name: Dickens, Charles, 1812-1870
Publisher: name: University of Victoria Libraries
Year: 2018
Subjects: subject: Inheritance and succession
valueUri: http://id.worldcat.org/fast/973371
subject: Fathers and daughters
valueUri: http://id.worldcat.org/fast/921890
subject: Debt, Imprisonment for
valueUri: http://id.worldcat.org/fast/888804
subject: Children of prisoners
valueUri: http://id.worldcat.org/fast/855496
subject: Marshalsea Prison (Southwark, London, England)
valueUri: http://id.worldcat.org/fast/658382
subject: Families
valueUri: http://id.worldcat.org/fast/1728849

description: Issued monthly from Dec. 1855 to June 1857 in blue paper wrappers. Book the first. Poverty. Chapters 15-18: Chapter 15. Mrs. Flintwinch has another dream -- Chapter 16. Nobody's weakness -- Chapter 17. Nobody's rival -- Chapter 18. Little Dorrit's lover
Mapping the Skies of Ultracool Worlds: Detecting Storms and Spots with Extremely Large Telescopes
Creators: name: Plummer, Michael K.
name: Wang, Ji
Publisher: name: arXiv
Year: 2023
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Extremely large telescopes (ELTs) present an unparalleled opportunity to study the magnetism, atmospheric dynamics, and chemistry of very low mass stars (VLMs), brown dwarfs, and exoplanets. Instruments such as the Giant Magellan Telescope - Consortium Large Earth Finder (GMT/GCLEF), the Thirty Meter Telescope's Multi-Objective Diffraction-limited High-Resolution Infrared Spectrograph (TMT/MODHIS), and the European Southern Observatory's Mid-Infrared ELT Imager and Spectrograph (ELT/METIS) provide the spectral resolution and signal-to-noise (S/N) necessary to Doppler image ultracool targets' surfaces based on temporal spectral variations due to surface inhomogeneities. Using our publicly-available code, $Imber$, developed and validated in Plummer & Wang (2022), we evaluate these instruments' abilities to discern magnetic star spots and cloud systems on a VLM star (TRAPPIST-1); two L/T transition ultracool dwarfs (VHS J1256$-$1257 b and SIMP J0136+0933); and three exoplanets (Beta Pic b and HR 8799 d and e). We find that TMT/MODHIS and ELT/METIS are suitable for Doppler imaging the ultracool dwarfs and Beta Pic b over a single rotation. Uncertainties for longitude and radius are typically $\lesssim 10^{\circ}$, and latitude uncertainties range from $\sim 10^{\circ} \ \rm{to} \ 30^{\circ}$. TRAPPIST-1's edge-on inclination and low $\upsilon \sin i$ provide a challenge for all three instruments while GMT/GCLEF and the HR 8799 planets may require observations over multiple rotations. We compare the spectroscopic technique, photometry-only inference, and the combination of the two. We find combining spectroscopic and photometric observations can lead to improved Bayesian inference of surface inhomogeneities and offers insight into whether ultracool atmospheres are dominated by spotted or banded features.
description: Accepted for publication in The Astrophysical Journal, 26 pages, 10 figures, 3 tables
Resistivity of the insulating phase approaching the 2D metal-insulator transition: the effect of spin polarization
Creators: name: Li, Shiqi
name: Sarachik, M. P.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The resistivities of the dilute, strongly-interacting 2D electron systems in the insulating phase of a silicon MOSFET are the same for unpolarized electrons in the absence of magnetic field and for electrons that are fully spin polarized by the presence of an in-plane magnetic field. In both cases the resistivity obeys Efros-Shklovskii variable range hopping $ρ(T) = ρ_0 \mbox{exp}[(T_{ES}/T)^{1/2}]$, with $T_{ES}$ and $1/ρ_0$ mapping onto each other if one applies a shift of the critical density $n_c$ reported earlier. With and withoug magnetic field, the parameters $T_{ES}$ and $1/ρ_0 = σ_0$ exhibit scaling consistent with critical behavior approaching a metal-insulator transition.
description: 5 pages, 5 figures
Association of Antenatal Depression with Anemia and Adherence to Iron-Folic AcidSupplement among Pregnant Women Attending Antenatal Care Services at Health Centers in Yeka Sub-City, Addis Ababa, Ethiopia, 2019
Creators: name: Mesfin, Miraf
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2019

description: Background: Depression affects a large proportion of the global population. It is reported to affect about a quarter of pregnant women in Ethiopia. Some studies indicate that anemia might bea risk factor for depression. This underscores the need for an iron-folic acid supplement (IFAS). IFAS adherence by pregnant women is however not satisfactory. Studies again implicate that depression might affect adherence to IFAS. Nevertheless, thispotential vicious cycleis not a well-explored area of research. The objective of this study is therefore to assess the association of antenatal depression with anemia and adherence to IFAS among pregnant women attending antenatal care (ANC) at selected health centers. Methods: a facility-based cross-sectional study was conducted among pregnant women who attended ANC service in Yeka sub-city, Addis Ababa. A total of 406 pregnant women were recruited in the study. Patient health questionnaire (PHQ-9), a validated tool in Ethiopia, was used to assess antenatal depression. IFAS adherence was assessed using pill count method. Bivariableand subsequent multivariable logistic regression were employed for data analysis. Results: it was found that anemic pregnant mothers had an increased odds of having antenatal depression [AOR=2.63; 95% CI (1.13, 6.14)] compared to non-anemic mothers. Having financial hardship, whether current pregnancy is planned and emotional abuse from an intimate partner also significantly associated with antenatal depression. Antenatal depression at cut-off (PHQ- 9≥5) failed to show statistically significant association with IFAS adherence. Major depression (PHQ-9≥10) was however found to be significantly associated with adherence to IFAS [AOR=1.97; 95% CI (1.09, 3.56)] in pregnant women. Besides, factors significantly associated with IFAS adherence were parity, knowledge of the use of IFAS and current pregnancy complication. Conclusion: the study revealed a significant association that exists between two important public health problems, anemia and antenatal depression; and the association between antenatal depression and IFAS adherence. Further investigation of these associations is a warranted area of future studies. In the meantime, putting these underlying determinants into consideration is beneficial as they might complicate diagnosis and have a negative impact on treatment outcomes. 2 1.
Equivalences between 2D dilaton gravities, their asymptotic symmetries, and their holographic duals
Creators: name: Ecker, Florian
name: Grumiller, Daniel
name: Valcárcel, Carlos
name: Vassilevich, Dmitri
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Dilaton gravities in two dimensions can be formulated as particular Poisson sigma models. Target space diffeomorphisms map different models to each other and establish a one-to-one correspondence between their classical solutions. We obtain a general form of such diffeomorphisms in Lorentzian and Euclidean signatures and use them to extend known holographic results, including the Schwarzian action on the asymptotic boundary, from JT to a large class of dilaton gravity models.
description: 53 pp, 4 figs; v2: 3 refs added, discussion section extended
Synthesis, characterisation and biological applications of carboxylate bismuth(III) complexes
Creators: name: Kumar., Ish
Publisher: name: Monash University
Year: 2021

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
Dynamical mass of the white dwarf in XY Ari: a test for intermediate polar X-ray spectral models
Creators: name: Álvarez-Hernández, A.
name: Torres, M. A. P.
name: Rodríguez-Gil, P.
name: Shahbaz, T.
name: Sánchez-Sierras, J.
name: Acosta-Pulido, J. A.
name: Jonker, P. G.
name: Gazeas, K. D.
name: Hakala, P.
name: Corral-Santana, J. M.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present a dynamical study of the eclipsing intermediate polar XY Ari based on time-resolved near-infrared spectroscopy obtained with the EMIR spectrograph on the 10.4-m Gran Telescopio Canarias. Using main sequence template spectra taken with the same instrument setup as the target spectra, we measure a radial velocity amplitude of the late K-type donor star $K_2=256 \pm 2$ km s$^{-1}$. We also obtain the rotational broadening of its photospheric lines $v_\mathrm{rot} \sin i = 141 \pm 3$ km s$^{-1}$. From these and the eclipse geometry, we derive a donor-to-white-dwarf mass ratio $q = M_2/M_1 = 0.62 \pm 0.02$, an orbital inclination $i = 80.8^{\circ} \pm 0.5^{\circ}$ and dynamical masses $M_{1} = 1.21 \pm 0.04 \, \mathrm{M}_{\odot}$ and $M_2 = 0.75 \pm 0.04 \, \mathrm{M}_{\odot}$ ($1 σ$). This result places the white dwarf in XY Ari as one of the three most massive known in a cataclysmic variable. Comparison with white dwarf mass estimates from X-ray spectral studies could indicate the necessity of an improvement of the X-ray models and/or analysis techniques, as a number of X-ray white dwarf masses are in disagreement with the dynamical mass value.
description: 10 pages, 4 figures, 5 tables, accepted for publication in MNRAS
Comparison of post-Minkowskian and self-force expansions: Scattering in a scalar charge toy model
Creators: name: Barack, Leor
name: Bern, Zvi
name: Herrmann, Enrico
name: Long, Oliver
name: Parra-Martinez, Julio
name: Roiban, Radu
name: Ruf, Michael S.
name: Shen, Chia-Hsien
name: Solon, Mikhail P.
name: Teng, Fei
name: Zeng, Mao
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We compare numerical self-force results and analytical fourth-order post-Minkowskian (PM) calculations for hyperbolic-type scattering of a point-like particle carrying a scalar charge $Q$ off a Schwarzschild black hole, showing a remarkably good agreement. Specifically, we numerically compute the scattering angle including the full $O(Q^2)$ scalar-field self-force term (but ignoring the gravitational self-force), and compare with analytical expressions obtained in a PM framework using scattering-amplitude methods. This example provides a nontrivial, high-precision test of both calculation methods, and illustrates the complementarity of the two approaches in the context of the program to provide high-precision models of gravitational two-body dynamics. Our PM calculation is carried out through 4PM order, i.e., including all terms through $O(Q^2 G^3)$. At the fourth post-Minkowskian order the point-particle description involves two a-priori undetermined coefficients, due to contributions from tidal effects in the model under consideration. These coefficients are chosen to align the post-Minkowskian results with the self-force ones.
description: 53 pages, 11 figures, 7 tables; v2 matches published version
Induction of desiccation tolerance in resurrection grasses
Creators: name: Kuang., Jianbo
Publisher: name: Monash University
Year: 2021

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
Looking into Analytical Approximations for Three-flavor Neutrino Oscillation Probabilities in Matter
Creators: name: Li, Yu-Feng
name: Zhang, Jue
name: Zhou, Shun
name: Zhu, Jing-yu
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Motivated by tremendous progress in neutrino oscillation experiments, we derive a new set of simple and compact formulas for three-flavor neutrino oscillation probabilities in matter of a constant density. A useful definition of the $η$-gauge neutrino mass-squared difference $Δ^{}_* \equiv ηΔ^{}_{31} + (1-η) Δ^{}_{32}$ is introduced, where $Δ^{}_{ji} \equiv m^2_j - m^2_i$ for $ji = 21, 31, 32$ are the ordinary neutrino mass-squared differences and $0 \leq η\leq 1$ is a real and positive parameter. Expanding neutrino oscillation probabilities in terms of $α\equiv Δ^{}_{21}/Δ^{}_*$, we demonstrate that the analytical formulas can be remarkably simplified for $η= \cos^2 θ^{}_{12}$, with $θ_{12}^{}$ being the solar mixing angle. As a by-product, the mapping from neutrino oscillation parameters in vacuum to their counterparts in matter is obtained at the order of ${\cal O}(α^2)$. Finally, we show that our approximate formulas are not only valid for an arbitrary neutrino energy and any baseline length, but also still maintaining a high level of accuracy.
description: 34 pages, 5 figures; v2: reference added, to appear in JHEP
Ligand-receptor binding kinetics in surface plasmon resonance cells: A Monte Carlo analysis
Creators: name: Carroll, Jacob
name: Raum, Matthew
name: Forsten-Williams, Kimberly
name: Täuber, Uwe C.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantitative Methods (q-bio.QM)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: Surface plasmon resonance (SPR) chips are widely used to measure association and dissociation rates for the binding kinetics between two species of chemicals, e.g., cell receptors and ligands. It is commonly assumed that ligands are spatially well mixed in the SPR region, and hence a mean-field rate equation description is appropriate. This approximation however ignores the spatial fluctuations as well as temporal correlations induced by multiple local rebinding events, which become prominent for slow diffusion rates and high binding affinities. We report detailed Monte Carlo simulations of ligand binding kinetics in an SPR cell subject to laminar flow. We extract the binding and dissociation rates by means of the techniques frequently employed in experimental analysis that are motivated by the mean-field approximation. We find major discrepancies in a wide parameter regime between the thus extracted rates and the known input simulation values. These results underscore the crucial quantitative importance of spatio-temporal correlations in binary reaction kinetics in SPR cell geometries, and demonstrate the failure of a mean-field analysis of SPR cells in the regime of high Damköhler number Da > 0.1, where the spatio-temporal correlations due to diffusive transport and ligand-receptor rebinding events dominate the dynamics of SPR systems.
description: 21 pages, 9 figures
title: POESIS: Horta, M. T. (2017). Lisboa: Dom Quixote, 256 pp
Creators: name: Fernandes, Ana Raquel
Publisher: name: CICS.NOVA - Centro Interdisciplinar de Ciências Sociais, Faculdade de Ciências Sociais e Humanas, Universidade NOVA de Lisboa
Year: 2018

description: Recensão crítica do livro "POESIS. Horta, M. T. (2017). Lisboa: Dom Quixote, 256 pp." por Ana Raquel Fernandes.
description: Fernandes, Ana Raquel. (2018). POESIS: Horta, M. T. (2017). Lisboa: Dom Quixote, 256 pp.. Faces de Eva. Estudos sobre a Mulher, (39), 197-201. ISSN: 0874-6885
A UV complete partially composite-pNGB Higgs
Creators: name: Galloway, Jamison
name: Kagan, Alexander L.
name: Martin, Adam
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We explore an electroweak symmetry breaking (EWSB) scenario based on the mixture of a fundamental Higgs doublet and an SU(4)/Sp(4) composite pseudo-Nambu-Goldstone doublet -- a particular manifestation of bosonic technicolor/induced EWSB. Taking the fundamental Higgs mass parameter to be positive, EWSB is triggered by the mixing of the doublets. This setup has several attractive features and phenomenological consequences, which we highlight: i) Unlike traditional bosonic technicolor models, the hierarchy between $Λ_{\rm TC}$ and the electroweak scale depends on vacuum (mis)alignment and can be sizable, yielding an attractive framework for natural EWSB; ii) As the strong sector is based on SU(4)/Sp(4), a fundamental (UV-complete) description of the strong sector is possible, that is informed by the lattice; iii) The lightest vector resonances occur in the 10-plet, 5-plet and singlet of Sp(4). Misalignment leads to a 10-plet "parity-doubling" cancelation in the $S$ parameter, and a suppressed 5-plet contribution; iv) Higgs coupling deviations are typically of $\mathcal O(1\%)$; v) The 10-plet isotriplet resonances decay dominantly to a massive technipion and a gauge boson, or to technipion pairs, rather than to gauge boson or fermion pairs; moreover, their couplings to fermions are small. Thus, the bounds on this setup from conventional heavy-vector-triplet searches are weak. A supersymmetric $U(1)_R$ symmetric realization is briefly described.
description: 7 pages. v3: minor changes, corrections made in numerical examples
Quality of Life of Caregivers of Older Patients with Advanced Cancer
Creators: name: Culakova, E.
name: Loh, K.P.
name: Wells, M.
name: Kehoe, L.A.
name: Canin, B.
name: Xu, H.
name: Hurria, A.
name: Kleckner, A.S.
name: Mohile, S.G.
name: Liu, J.J.
name: Geer, J.
name: Kamen, C.
name: Epstein, R.
name: Hoerger, M.
name: Dale, W.
name: Duberstein, P.
name: Gilmore, N.
name: Lund, J.
name: Flannery, M.
name: Hopkins, J.O.
Publisher: name: Blackwell Publishing Inc.
Year: 2019

description: OBJECTIVES: To evaluate the relationships between aging-related domains captured by geriatric assessment (GA) for older patients with advanced cancer and caregivers’ emotional health and quality of life (QOL). DESIGN: In this cross sectional study of baseline data from a nationwide investigation of older patients and their caregivers, patients completed a GA that included validated tests to evaluate eight domains of health (eg, function, cognition). SETTING: Thirty-one community oncology practices throughout the United States. PARTICIPANTS: Enrolled patients were aged 70 and older, had one or more GA domain impaired, and had an incurable solid tumor malignancy or lymphoma. Each could choose one caregiver to enroll. MEASUREMENTS: Caregivers completed the Generalized Anxiety Disorder-7, Distress Thermometer, Patient Health Questionnaire-2 (depression), and Short Form Health Survey-12 (SF-12 for QOL). Separate multivariate linear or logistic regression models were used to examine the association of the number and type of patient GA impairments with caregiver outcomes, controlling for patient and caregiver covariates. RESULTS: A total of 541 patients were enrolled, 414 with a caregiver. Almost half (43.5%) of the caregivers screened positive for distress, 24.4% for anxiety, and 18.9% for depression. Higher numbers of patient GA domain impairments were associated with caregiver depression (adjusted odds ratio [aOR] = 1.29; P <.001], caregiver physical health on SF-12 (regression coefficient [β] = −1.24; P <.001), and overall caregiver QOL (β = −1.14; P <.01). Impaired patient function was associated with lower caregiver QOL (β = −4.11; P <.001). Impaired patient nutrition was associated with caregiver depression (aOR = 2.08; P <.01). Lower caregiver age, caregiver comorbidity, and patient distress were also associated with worse caregiver outcomes. CONCLUSION: Patient GA impairments were associated with poorer emotional health and lower QOL of caregivers.
Static configurations and evolution of higher dimensional brane-dilaton black hole system
Creators: name: Nakonieczna, Anna
name: Nakonieczny, Łukasz
name: Moderski, Rafał
name: Rogatko, Marek
Publisher: name: arXiv
Year: 2016
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Static configurations and a dynamical evolution of the system composed of a higher-dimensional spherically symmetric dilaton black hole and the Dirac-Goto-Nambu brane were investigated. The studies were conducted for three values of the dilaton coupling constant, describing the uncoupled case, the low-energy limit of the string theory and dimensionally reduced Klein-Kaluza theories. When the black hole is nonextremal, two types of static configurations are observed, a brane which intersects the black hole horizon and a brane not having any common points with the accompanying black hole. As the number of spacetime dimensions increases, the brane bend in the vicinity of the black hole disappears closer to its horizon. Dynamical evolution of the system results in an expulsion of the black hole from the brane. It proceeds faster for bigger values of the bulk spacetime dimension and thicker branes. The value of the dilatonic coupling constant does not influence neither the static configurations nor the dynamical behavior of the examined nonextremal system. In the extremal dilaton black hole case one obtains expulsion of the brane which is independent on the spacetime dimensionality and the value of the coupling constant. Dynamical studies of the configurations in the extremal case reveal that the course of evolution of the system is similar to the nonextremal one, except for a slightly earlier expulsion of the black hole from the brane.
description: 23 pages, 7 figures
The synthesis and physicochemical characterization of polynuclear copper(II), nickel(II) and vanadium(III) complexes
Creators: name: Kruger., Paul E.
Publisher: name: Monash University
Year: 2021

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
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Σύγκριση τεχνικών πρόβλεψης για χρονοσειρές Bitcoin
Creators: name: Αψεμίδου Ελένη Γεωργίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2022
Subjects: Κρυπτονομίσματα
Τεχνικές πρόβλεψης
Χρονοσειρές
Bitcoin
Forecasting techniques
time series

description: Στην παρούσα διπλωματική, επιχειρούμε να προβλέψουμε την τιμή του bitcoin συγκρίνοντας την επίδραση του αριθμού των χαρακτηριστικών σε διάφορα μοντέλα πρόβλεψης. Επίσης, στόχος μας είναι να προτείνουμε ένα νέο συνδυαστικό μοντέλο. Ειδικότερα, η παρούσα μελέτη συγκρίνει την ακρίβεια της πρόβλεψης των τιμών του bitcoin με τη χρήση τριών διαφορετικών μοντέλων: Long-Short Term Memory (LSTM), Auto-Regressive Integrated Moving Average (ARIMA) και Support Vector Machines(SVM) όσον αφορά τα σφάλματα πρόβλεψης. Χρησιμοποιούμε Python για τους σκοπούς αυτούς σε όλα τα πειράματα. Αναφερόμαστε στα κρυπτονομίσματα και επικεντρωνόμαστε στην πρόβλεψη της χρονοσειράς Bitcoin χρησιμοποιώντας το σύνολο δεδομένων Bitcoin Historical από το Kaggle. Η χρονοσειρά τιμών Bitcoin κυμαίνεται από 2012-01-01 έως 2021-03-31, σε διαστήματα ενός λεπτού. Για να συγκρίνουμε τα αποτελέσματα των τριών μοντέλων, χωρίσαμε τα δεδομένα σε δύο υποσύνολα: εκπαίδευση (70%) και δοκιμή (30%). Σε αυτή τη διπλωματική, τα αποτελέσματα επιβεβαιώνουν όντως πως ο αριθμός των χαρακτηριστικών επηρεάζουν την πρόβλεψη και πως το νέο συνδυαστικό μοντέλο μας είναι κατά μέσο όρο καλύτερο από εκείνο του παραδοσιακού και του μοντέλου μηχανικής μάθησης. Στη βιβλιογραφία, οι επιστήμονες αναφέρουν ότι ο LSTM υπερτερεί έναντι του ARIMA και του SVM. Πράγματι, οι προβλέψεις του LSTM για τις τιμές των bitcoin υπερτερούν κατά μέσο όρο των ARIMA και SVM μετά από κατάλληλη επιλογή των χαρακτηριστικών που θα χρησιμοποιηθούν
description: In this dissertation, we attempt to predict the price of bitcoin by comparing the impact of the number of features in different forecasting models. Also, we aim to propose a new combined model. Notably, this study compares the accuracy of the prediction of bitcoin prices using three different models: Long-Short Term Memory (LSTM), Auto-Regressive Integrated Moving Average (ARIMA) and Support Vector Machines(SVM) in terms of forecasting errors. We use Python routines for such purposes in all experiments. We refer to cryptocurrencies and focus on the Bitcoin time series forecasting by using the Bitcoin Historical dataset from Kaggle. Bitcoin price time series ranges from 2012-01-01 to 2021-03-31, in one-minute intervals. To compare the results of the three models, we devided data into two subsets: training (70%) and testing (30%). In this dissertation, the results do confirm the number of features that influence forecast, and our new combined model is better on average than the traditional and machine learning models. In the literature, scientists indicate that LSTM outperforms ARIMA and SVM. Verily, LSTM forecasts of bitcoin prices outperform on average ARIMA and SVM after appropriate selection of the features to be employed
Instability of mass transfer in a planet-star system
Creators: name: Jia, Shi
name: Spruit, H. C.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We show that the angular momentum exchange mechanism governing the evolution of mass transferring binary stars does not apply to Roche-lobe filling planets, because most of the angular momentum of the mass transferring stream is absorbed by the host star. Apart from a correction for the difference in specific angular momentum of the stream and the centre of mass of the planet, the orbit does not expand much on Roche-lobe overflow. We explore the conditions for dynamically unstable Roche-lobe overflow as a function of planet mass and mass and radius (age) of host star and equation of state of planet. For a Sun-like host, gas giant planets in a range of mass and entropy can undergo dynamical mass transfer. Examples of the evolution of the mass transfer process are given. Dynamic mass transfer of rocky planets depend somewhat sensitively on equation of state used. Silicate planets in the range $1 M_{\oplus}
description: 13 pages, 17 figures. One figure (Figure 15) has been added. The text has been improved (major revisions for Section 2 and Section 4). Matches version published in MNRAS
On the global temperature of the Schwarzschild-de Sitter spacetime
Creators: name: Volovik, G. E.
Publisher: name: arXiv
Year: 2023
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: It is shown that the Schwarzschild-de Sitter (SdS) spacetime has the fundamental temperature. This temperature describes the thermal processes of decay of the composite particles and the other processes, which are energetically forbidden in the Minkowski spacetime, but are allowed in the de Sitter and in SdS backgrounds. In particular, this temperature describes the probability of ionization of the atom in the SdS, which is observed by the stationary observer at the point where the shift function (velocity) in the Arnowitt-Deser-Misner formalism changes sign. This activation temperature does not depend on the black hole mass and is fully determined by the Hubble parameter, $T_{\rm SdS}=\sqrt{3}H/π$. This temperature is twice the Bousso-Hawking temperature $T_{\rm BH}$, which characterizes the limit of degenerate Lorentzian Schwarzschild-de Sitter universe, when the cosmological and black hole horizons are close to each other, $T_{\rm SdS}=2T_{\rm BH}$. The similar doubling of the temperature of Hawking radiation is known in the pure de Sitter spacetime, where the corresponding local temperature describing the ionization of atoms is twice the Gibbons-Hawking temperature, $T_{\rm dS}=2T_{\rm GH}=H/π$. We suggest that the activation temperature $T_{\rm dS}$ can be considered as the thermodynamic temperature of the de Sitter state, which determines the local entropy in this state, $s=3H/4G$.
description: 5 pages, no figures, continuation of the paper G.E. Volovik, Ann. Phys. 449, 169219 (2023), version accepted in JETP Letters
Αντιλήψεις εκπαιδευτικών δημόσιων σχολείων σχετικά με τη διαπολιτισμική εκπαίδευσης και τις διαπολιτισμικές τους πρακτικές. Μια μελέτη περίπτωσης
Creators: name: Αγγελόπουλος Κωνσταντίνος Αντώνιος Δημητρίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2022
Subjects: Διαπολιτισμική Εκπαίδευση
Μελέτη Περίπτωσης
Διαπολιτισμικές Αντιλήψεις
Διαπολιτισμικές Πρακτικές
Εκπαιδευτικοί Δημόσιων Σχολείων
Intercultural Education
Case-study
Intercultural Views
Intercultural Practice
Teachers of public schools

description: Η εκπαίδευση αποτελεί ανθρώπινο δικαίωμα. Η Διαπολιτισμική/ Πολυπολιτισμική Εκπαίδευση ως σύνολο αρχών και αξιών προωθεί τις ίσες εκπαιδευτικές ευκαιρίες και την άρση των κοινωνικών ανισοτήτων. Η παρούσα έρευνα μελετά τις αντιλήψεις εκπαιδευτικών για τη Διαπολιτισμική Εκπαίδευση και τις διαπολιτισμικές πρακτικές τις οποίες χρησιμοποιούν για να την προωθήσουν. Η ερευνητική μας στρατηγική περιλαμβάνει μελέτες περίπτωσης τριών ελληνικών δημόσιων σχολείων στην πόλη των Γιαννιτσών στην Κεντρική Μακεδονία. Οι εις βάθος ημι-δομημένες συνεντεύξεις ήταν το βασικό εργαλείο της έρευνας. Τα αποτελέσματα δείχνουν ότι οι εκπαιδευτικοί θεωρούν τη Διαπολιτισμική Εκπαίδευση ως «αποστολή» και δημόσιο αγαθό. Άλλοι/ ες θεωρούν ότι απευθύνεται σε όλους/ όλες τους/ τις μαθητές/ τριες και άλλοις/ ες ότι απευθύνεται μόνο σε μαθητές/ τριες πολιτισμικών μειονοτήτων. Η Διαπολιτισμική Εκπαίδευση θεωρούν ότι πρέπει να εφαρμόζεται αποσπασματικά είτε εντός είτε εκτός Αναλυτικού Προγράμματος. Ακόμα, δίνουν βάση στο να εκφράζονται οι μαθητές/ τριες μέσω της σωματικής τους δράσης. Ελπίζουμε ότι η έρευνα θα βοηθήσει τους σχεδιαστές/ τριες της εκπαιδευτικής πολιτικής, τους Διευθυντές/ τριες των σχολείων και πάνω από όλα τους/ τις εκπαιδευτικούς να προωθήσουν τη Διαπολιτισμική Εκπαίδευση πιο αποτελεσματικά
description: The education is human right. Intercultural/ Multicultural Education as a set of principles and values trying to promote equal educational opportunities for all students and the same time trying to reduce social inequalities. The present study investigates teacher views about Intercultural Education and their Ιntercultural educational practices which they use to promote it. Our research strategy involved cases-studies of three Greek public primary schools in town of Giannitsa in Central Macedonia Greece. Moreover, in-depth semi-structured interview was our main research technique. The findings suggest that teachers perceive Intercultural Education as a “mission” and public commodity. Some of them believe that Intercultural Education addressed in all students and someone else believe that addressed only in culturally minority students. The majority of participants apply Intercultural Education in fragments either inside or outside from the curriculum. Teachers pay attention to express students through physical action. We hope that our study could help policymakers, school principals and mainly teachers to promote more effectively Intercultural Education
Assessment of Factors Affecting Insurance in Yirgalem Town, Ethiopia Assessment of Factors Affecting Dropout of Community Based Health Insurance in Yirgalem Town, Ethiopia.
Creators: name: Worku, Yitayish
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2019

description: Back ground: To access quality of care and overcome catastrophic out of pocket expense nations working on community based health insurance whereby risk pooling and sharing. To achieve this, households enrolled in the insurance and also renewed their membership since health insurance is an instrument in achieving universal health coverage. Even if the amount of the initial up take and enrollment is important, high dropout rate endangers the sustainability of community based health insurance (CBHI) and enhances the existing enrollment problems. Objectives: To asses factors affecting dropout of community based health insurance (CBHI) members from community based health insurance (CBHI) scheme. Methods: Community based cross sectional study design was employed using interviewer administered questioners and supplemented by qualitative in-depth interviewer questioners to assess factors affecting dropout of CBHI in Yirgalem town. 3 kebeles were selected by using simple random sampling method .And the study participants were selected by using systematic random sampling technique. The sample size required for the study is 376.Quantitative data was entered in to SPSS version 24 for analyses. Qualitative data was transcribed, analyzed manually using the thematic area analysis approach. Results: The study found that educational statuses of respondents were found to be an associated factor for drop out of CBHI. Households who are illiterate were 1.73 times more likely to drop out from CBHI than those who were sinor and above, AOR = 1.73, 95% CI (0.365, 0.566). Socio economic status of households also affect dropout. Household with wealth status of low income were 2.5 times less likely to drop out from the CBHI than those medium wealth statuses, AOR = 2.5; 95% CI (1.89, 3.40). While households with higher income group were 1.58 times more likely to drop out than those middle income groups, AOR = 1.58; 95% CI (2.04, 4.89). Limited scope of illness covered by the scheme is also reason and positively correlated with members to drop out from their membership (r=0.474 at p=0.00). Conclusion: This study brings reasons and factors for drop out of CBHI membership. It is found that education, socio economic status, limited scope of illness, distance from health facility, quality of health care services were correlated with dropout of CBHI. Recommendation: Regional Health Bureau, Zonal and woreda health office should work to improve quality of health care service, availability of drugs and functionality of laboratory instruments.
Spatial Multiplexing of QPSK Signals with a Single Radio: Antenna Design and Over-the-Air Experiments
Creators: name: Yousefbeiki, Mohsen
name: Austin, Andrew C. M.
name: Mosig, Juan R.
name: Burg, Andreas
name: Perruisseau-Carrier, Julien
Publisher: name: arXiv
Year: 2016
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: The paper describes the implementation and performance analysis of the first fully-operational beam-space MIMO antenna for the spatial multiplexing of two QPSK streams. The antenna is composed of a planar three-port radiator with two varactor diodes terminating the passive ports. Pattern reconfiguration is used to encode the MIMO information onto orthogonal virtual basis patterns in the far-field. A measurement campaign was conducted to compare the performance of the beam-space MIMO system with a conventional 2-by-?2 MIMO system under realistic propagation conditions. Propagation measurements were conducted for both systems and the mutual information and symbol error rates were estimated from Monte-Carlo simulations over the measured channel matrices. The results show the beam-space MIMO system and the conventional MIMO system exhibit similar finite-constellation capacity and error performance in NLOS scenarios when there is sufficient scattering in the channel. In comparison, in LOS channels, the capacity performance is observed to depend on the relative polarization of the receiving antennas.
description: 31 pages, 23 figures
Halo assembly bias from a deep learning model of halo formation
Creators: name: Lucie-Smith, Luisa
name: Barreira, Alexandre
name: Schmidt, Fabian
Publisher: name: arXiv
Year: 2023
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We build a deep learning framework that connects the local formation process of dark matter halos to the halo bias. We train a convolutional neural network (CNN) to predict the final mass and concentration of dark matter halos from the initial conditions. The CNN is then used as a surrogate model to derive the response of the halos' mass and concentration to long-wavelength perturbations in the initial conditions, and consequently the halo bias parameters following the "response bias" definition. The CNN correctly predicts how the local properties of dark matter halos respond to changes in the large-scale environment, despite no explicit knowledge of halo bias being provided during training. We show that the CNN recovers the known trends for the linear and second-order density bias parameters $b_1$ and $b_2$, as well as for the local primordial non-Gaussianity linear bias parameter $b_ϕ$. The expected secondary assembly bias dependence on halo concentration is also recovered by the CNN: at fixed mass, halo concentration has only a mild impact on $b_1$, but a strong impact on $b_ϕ$. Our framework opens a new window for discovering which physical aspects of the halo's Lagrangian patch determine assembly bias, which in turn can inform physical models of halo formation and bias.
description: 11 pages, 5 figures, to be submitted to MNRAS, comments welcome