cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The Effects of Chemotherapy on Cognition in Women with Breast Cancer
Creators: name: O'Farrell, Erin
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2017
Subjects: breast cancer
oncology
cognitive function
multilevel modeling
cancer-related cognitive impairment

description: Advances in cancer treatment have led to increasing numbers of survivors left to struggle with the long-term adverse effects of disease and treatment. Many possible effects have been described including anxiety, depression, as well as physical side effects and consequences of cancer treatment. One particular adverse effect that is frequently reported but often overlooked in clinical practice is disturbances of cognitive functioning. Cancer-related cognitive impairment (CRCI) is a growing area of research with important clinical implications for current patients and survivors. Despite a huge increase in this research endeavour in the last 20 years, many important questions remain unanswered due, in large part, to methodological limitations of many of the studies. The overall goal of this dissertation is to critically examine previous CRCI research from a methodological perspective. It will explore limitations and confounds in this research and provide suggestions for improving future work. This dissertation is comprised of three manuscripts, a critical literature review and two original papers, addressing specific research questions. The first original paper addresses the disparity between the results of objective (performance-based) and subjective (self-report) measures of cognition that is typically observed in samples of cancer patients, using multilevel modeling to explore the hypothesis that this is due to failure to address measures of change over time. Despite negative findings, the methodological approach taken to this research question provided greater evidence for this subjective-objective disparity as well as methodological suggestions for future studies. The second original paper explores the sensitivity and validity of a computerized cognitive test for measuring CRCI to determine if it might be an appropriate alternative to traditional, resource-intensive neuropsychological testing. This study found that, although the computerized measure of cognitive functioning was not sensitive enough to detect changes at the individual level or within specific domains, it was sensitive to changes in cognitive functioning at the group level suggesting its usefulness as a screening tool in research settings. By addressing methodological limitations of research to date and, specifically, the two issues identified above, this dissertation aims to a) make recommendations to help improve the quality of future research, b) validate the cognitive complaints of cancer patients, and c) improve access to cognitive assessments leading to increased detection and treatment of cognitive side effects and improvement in quality of life of cancer survivors.
Quark stars admixed with dark matter
Creators: name: Mukhopadhyay, Payel
name: Schaffner-Bielich, Juregen
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Compact stars consisting of massless quark matter and fermionic dark matter are studied by solving the Tolman-Oppenheimer-Volkoff equations for two fluids separately. Dark matter is further investigated by incorporating inter-fermionic interactions among the dark matter particles. The properties of stars made of quark matter particles and self-interacting and free dark matter particles are explored by obtaining their mass-radius relations. The regions of stability for such a compact star are determined and it is demonstrated that the maximum stable total mass of such a star decreases approximately linearly with increasing dark matter fraction.
WISE Green Objects (WGOs): the massive star candidates in the whole Galactic Plane ($\mid b \mid <2^\circ$)
Creators: name: Zhang, Chang
name: Zhang, Guo-Yin
name: Li, Jin-Zeng
name: Yuan, Jing-Hua
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Massive young stellar objects (MYSOs) play a crucial role in star formation. Given that MYSOs were previously identified based on the extended structure and the observational data for them is limited, screening the Wide-field Infrared Survey Explorer (WISE) objects showing green features (for the common coding of the 4.6 $μ$m band as green channel in three-color composite WISE images) will yield more MYSO candidates. Using WISE images in the whole Galactic Plane ($ 0^\circ 60^\circ$. Matching results with various masers show that those three groups of WGOs are at different evolutionary stages. After cross-matching WGOs with published YSO survey catalogs, we infer that $\sim$50% of WGOs are samples of newly discovered YSOs. In addition, 1260 WGOs are associated with Hi-GAL sources, according to physical parameters estimated by spectral energy distribution fitting, of which 231 are classified as robust MYSOs and 172 as candidate MYSOs.
description: 25 pages, 9 figures, accepted for publication in ApJS
The Role of the 5-HT1A Autoreceptor In Response to Antidepressant Treatment
Creators: name: Cardin, Valerie
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2017
Subjects: Serotonin
5-HT1A
Anxiety
Depression

description: Selective Serotonin Reuptake Inhibitors (SSRIs) are the first-line treatment for major depression, but require several weeks to elicit a clinical effect. One mechanism that may underlie this delay in SSRI action implicates the gradual desensitization of 5-HT1A autoreceptors, leading to enhanced firing and increasing serotonin (5-HT) at the synapse. I hypothesized that in absence of 5-HT1A autoreceptors, fluoxetine (FLX) would improve behavior faster and more effectively. To specifically knock out 5-HT1A receptors in 5-HT neurons, we crossed TPH2-CREERT2 and flx5HT1A-YFP mice to generate the flx1A mice, a tamoxifen-inducible conditional knockout. Tamoxifen-induced recombination in adult flx1A-/- mice induced YFP expression and reduced 5-HT1A receptor levels by over 90%, specifically in TPH-positive cells of the raphe. To test the response to sub-chronic SSRI treatment, the mice were treated for 9 days with SSRIs FLX or escitalopram and examined for anxiety and depression-like behavior using multiple tests, including the novelty suppressed feeding test (NSF) that responds to chronic but not acute SSRI treatment. Subchronic FLX treatment had no effect in flx1A +/+ control mice, but resulted in an unexpected anxiogenic effect in flx1A -/- littermates, in both the NSF and elevated plus maze tests. Subchronic treatment with escitalopram also increased anxiety-like behavior in the NSF in flx1A-/-, but not wild-type mice. To determine whether FLX treatment differentially affected brain activity in these mice, the number of FosB-stained cells was determined as an index of chronic activation. In flx1A -/- vs. +/+ mice, the number of FosB-positive cells was reduced in several brain regions linked to anxiety and depression including hippocampus and entorhinal cortex, and FLX III treatment reduced activation in the flx1A +/+ compared to -/- mice these areas and in 5-HT neurons of the median raphe nucleus. These results suggest that in the absence of 5-HT1A autoreceptors, SSRIs have a pro-anxiety effect that may involve reduced inactivation anxiety-related brain regions.
Tayabas
Creators: name: Morley, Ian
Publisher: name: International Planning History Society Proceedings
Year: 2018

description: The historiography of the City Beautiful in the Philippines has, in broad terms, been dominated by two American planners, Daniel Burnham and William E. Parsons. In some ways this is to be expected: both individuals were known to have strong personalities; Burnham’s monumental 1905 plans for Manila and Baguio were central to a new urban design paradigm being manufactured in the country, a planning model which replaced the Spanish colonial spatial model based in the Law of the Indies (1573); and, Parsons from 1906 to 1914 as Consulting Architect to the Philippine Commission propagated the City Beautiful via comprehensive city plans and grand civic centre projects. But where in the Philippine City Beautiful narrative do Filipino planners fit? To date their role in the city planning picture during the American colonial era has been, at best, portrayed as minimal. However, given the author’s recent uncovering of new planning works by Filipinos, e.g. in Tayabas and Iloilo Province, is it pertinent to ask if planning historiography needs to be revised?
description: International Planning History Society Proceedings, Vol. 18 No. 1 (2018): Looking at the World History of Planning
Broadband Spectral properties of MAXI J1348--630 using AstroSat Observations
Creators: name: Mall, Gitika
name: Vadakkumthani, Jithesh
name: Misra, Ranjeev
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present broadband X-ray spectral analysis of the black hole X-ray binary MAXI J1348--630, performed using five AstroSat observations. The source was in the soft spectral state for the first three and in the hard state for the last two observations. The three soft state spectra were modelled using a relativistic thin accretion disc with reflection features and thermal Comptonization. Joint fitting of the soft state spectra constrained the spin parameter of the black hole $a_*$ $>$ 0.97 and the disc inclination angle $i$ = 32.9$\substack{+4.1 \\ -0.6}$ degrees. The bright and faint hard states had bolometric flux a factor of $\sim 6$ and $\sim 10$ less than that of the soft state. Their spectra were fitted using the same model except that the inner disc radius was not assumed to be at the last stable orbit. However, the estimated values do not indicate large truncation radii and the inferred accretion rate in the disc was an order of magnitude lower than that of the soft state. Along with earlier reported temporal analysis, AstroSat data provides a comprehensive picture of the evolution of the source.
description: Accepted for publication in Research in Astronomy and Astrophysics (RAA); 16 pages, 6 figures
Adding Gamma-ray Polarimetry to the Multi-Messenger Era
Creators: name: Kole, Merlin
name: Iacovelli, Francesco
name: Mancarella, Michele
name: Produit, Nicolas
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The last decade has seen the emergence of two new fields within astrophysics: gamma ray polarimetry and GW astronomy. The former, which aims to measure the polarization of gamma rays in the energy range of 10s to 100s of keV, from astrophysical sources, saw the launch of the first dedicated polarimeters such as GAP and POLAR. On the other hand, GW astronomy started with the detection of the first black hole mergers by LIGO in 2015, followed by the first multi messenger detection in 2017. While the potential of the two individual fields has been discussed in detail in the literature, the potential for joint observations has thus far been ignored. In this article, we aim to define how GW observations can best contribute to gamma ray polarimetry and study the scientific potential of joint analyses. In addition we aim to provide predictions on feasibility of such joint measurements in the near future. We study which GW observables can be combined with measurements from gamma ray polarimetry to improve the discriminating power regarding GRB emission models. We then provide forecasts for the joint detection capabilities of current and future GW detectors and polarimeters. Our results show that by adding GW data to polarimetry, a single precise joint detection would allow to rule out the majority of emission models. We show that in the coming years joint detections between GW and gamma ray polarimeters might already be possible. Although these would allow to constrain part of the model space, the probability of highly constraining joint detections will remain small in the near future. However, the scientific merit held by even a single such measurement makes it important to pursue such an endeavour. Furthermore, we show that using the next generation of GW detectors, such as the Einstein Telescope, joint detections for which GW data can better complement the polarization data become possible.
description: 19 pages, 10 figures, Accepted for publication in A&A
Reconciliation in Action and the Community Learning Centres of Quebec: The Experiences of Teachers and Coordinators Engaged in First Nations, Inuit and Métis Social Justice Projects
Creators: name: Howell, Lisa
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2017
Subjects: First Nations, Inuit and Metis
Reconciliation
Social Justice
Decolonizing pedagogy
Quebec
Community Learning Centres
Teacher's experiences
Transformative education

description: When the Truth and Reconciliation Commission (TRC) called for all provinces and territories in Canada to develop curriculum related to residential schools, most ministries of education began the process of reform. Despite this Call to Action, Quebec remains the only province that has yet to publicly commit to or develop any curricula related to residential schools. In this context, this study examines the Community Learning Centre (CLC) network, which has empowered English schools across Quebec to participate in projects that address the Calls to Action, encouraging social justice and reconciliation. It examines the experiences of teachers and CLC coordinators who have participated in CLC projects between 2012-2016. The findings indicate that there is increasing frustration among teachers concerning the absence of residential school history from the Quebec curriculum. Findings also indicate many pedagogical benefits of teaching for social justice. Finally, the study identifies challenges and best practises, and provides recommendations for program and curriculum development in the movement for reconciliation in education in Quebec.
CuAlTe$_2$: A promising bulk thermoelectric material
Creators: name: Gudelli, Vijay Kumar
name: Kanchana, V.
name: Vaitheeswaran, G.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Transport properties of Cu-based chalcopyrite materials are presented using the full potential linear augmented plane wave method and Boltzmann Semi-classical theory. All the studied compounds appear to be direct band gap semiconductors evaluated based on the Tran-Blaha modified Becke-Johnson potential. The heavy and light band combination found near the valence band maximum (VBM) drive these materials to possess good thermoelectric properties. Among the studied compounds, CuAlTe$_2$ is found to be more promising, in comparison with CuGaTe$_2$, which is reported to be an efficient thermoelectric material with appreciable figure of merit. Another interesting fact about CuAlTe$_2$ is the comparable thermoelectric properties possessed by both $n-$ type and $p-$ type carriers, which might attract good device applications and are explained in detail using the electronic structure calculations.
(Nearly) Model-Independent Constraints on the Neutral Hydrogen Fraction in the Intergalactic Medium at $z\sim 5-7$ Using Dark Pixel Fractions in Ly$α$ and Ly$β$ Forests
Creators: name: Jin, Xiangyu
name: Yang, Jinyi
name: Fan, Xiaohui
name: Wang, Feige
name: Bañados, Eduardo
name: Bian, Fuyan
name: Davies, Frederick B.
name: Eilers, Anna-Christina
name: Farina, Emanuele Paolo
name: Hennawi, Joseph F.
name: Pacucci, Fabio
name: Venemans, Bram
name: Walter, Fabian
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Cosmic reionization was the last major phase transition of hydrogen from neutral to highly ionized in the intergalactic medium (IGM). Current observations show that the IGM is significantly neutral at $z>7$, and largely ionized by $z\sim5.5$. However, most methods to measure the IGM neutral fraction are highly model-dependent, and are limited to when the volume-averaged neutral fraction of the IGM is either relatively low ($\bar{x}_{\rm HI} \lesssim 10^{-3}$) or close to unity ($\bar{x}_{\rm HI}\sim 1$). In particular, the neutral fraction evolution of the IGM at the critical redshift range of $z=6-7$ is poorly constrained. We present new constraints on $\bar{x}_{\rm HI}$ at $z\sim5.1-6.8$, by analyzing deep optical spectra of $53$ quasars at $5.736.1$ are consistent with the redshift evolution of the neutral fraction of the IGM derived from the Planck 2018.
description: 13 pages, 6 figures, 2 tables, accepted for publication in ApJ
Historical waterfront of Rio de Janeiro
Creators: name: Izaga, Fabiana Generoso De
name: De Silveira, Amanda Barbosa
Publisher: name: International Planning History Society Proceedings
Year: 2018

description: This article seeks to analyse recent urban transformations and the conceptual bases that have been in force in the Urban Rehabilitation Project of Rio de Janeiro's waterfront. An attempt is made at establishing a connection between the development of the area, the evolution of the city's history, the activities carried out at the port, an its conversion to new uses. An analysis of the spatial transformations is done, especially in the 7-year (2009-16) span of the initial implementation of the ongoing ‘Porto Maravilha’ [Marvel Port] urban project, with the mapping of new and old urban fabric and infrastructure; bibliographical research on historiographical studies, city administration players, and technicians to unveil processes that concern urban projects as contemporary tools for land valuation. As a conclusion, we point that despite the major work recently carried out as a product of the Urban Operation Consortium Law guidelines, only 9% of the urban land stock has been negotiated, contradicting even the pessimistic forecasts of 50%. The area lacks an Integrated Urban Plan with a public policy approach, especially to foster housing as a key element for liveable neighbourhoods and a stronger connection with the green infrastructure of the Guanabara Bay ecosystem.
description: International Planning History Society Proceedings, Vol. 18 No. 1 (2018): Looking at the World History of Planning
Unresolved Binaries and Multiples in the Intermediate Mass Range in open clusters: Pleiades, Alpha Per, Praesepe, and NGC 1039
Creators: name: Malofeeva, Alina A.
name: Mikhnevich, Varvara O.
name: Carraro, Giovanni
name: Seleznev, Anton F.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: In this study, we continue our project to search for unresolved binary and multiple systems in open clusters exploiting the photometric diagram (H-W2)-W1 vs W2-(BP-K) firstly introduced in \citet{Malofeeva+2022}. In particular, here we estimate the binary and multiple star ratios and the distribution of the component mass ratio $q$ in the Galactic clusters Alpha Persei, Praesepe, and NGC 1039. We have modified the procedure outlined in our first study \citep{Malofeeva+2022} making star counts automatic and by introducing bootstrapping for error estimation. Basing on this, we re-investigated the Pleiades star cluster in the same mass range as in our previous work and corrected an inaccuracy in the mass ratio $q$ distribution. The binary and multiple star ratio in the four clusters is then found to lie between 0.45$\pm$0.03 and 0.73$\pm$0.03. On the other hand, the ratio of systems with multiplicity more than 2 is between 0.06$\pm$0.01 and 0.09$\pm$0.02. The distribution of the component mass ratio $q$ is well fitted with a Gaussian having the mode between 0.22$\pm$0.04 and 0.52$\pm$0.01 and the dispersion between 0.10$\pm$0.02 and 0.35$\pm$0.07. All clusters show a large number of the very low-mass secondary components in the binary systems with primary components below 0.5 $M_{\odot}$.
description: 16 pages, 12 figures, accepted for publication in the Astronomical Journal
NIHAO VIII: Circum-galactic medium and outflows - The puzzles of HI and OVI gas distributions
Creators: name: Gutcke, Thales A.
name: Stinson, Greg S.
name: Macciò, Andrea V.
name: Wang, Liang
name: Dutton, Aaron A.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We study the hot and cold circum-galactic medium (CGM) of 86 galaxies of the cosmological, hydrodynamical simulation suite NIHAO. NIHAO allows a study of how the $z=0$ CGM varies across 5 orders of magnitude of stellar mass using OVI and HI as proxies for hot and cold gas. The cool HI covering fraction and column density profiles match observations well, particularly in the inner CGM. OVI shows increasing column densities with mass, a trend seemingly echoed in the observations. As in multiple previous simulations, the OVI column densities in simulations are lower than observed and optically thick HI does not extend as far out as in observations. We take a look at the collisional ionisation fraction of OVI as a function of halo mass. We make observable predictions of the bipolarity of outflows and their effect on the general shape of the CGM. Bipolar outflows can be seen out to around 40 kpc in intermediate and low mass halos ($M_{\mathrm{halo}}<10^{11}M_{\mathrm{sun}}$), but outside that radius, the CGM is too well mixed to detect an elongated shape. Larger halos have extended gas discs beyond the stellar disc that dominate the shape of the inner CGM. The simulated CGM is remarkably spherical even in low mass simulations. The chemical enrichment of both halo and disc gas follow expected increasing trends as a function of halo mass that are well fit with power laws. These relations can be used in non-hydrodynamic models, such as semi-analytic models.
description: 23 pages, 19 figures, accepted for publication in MNRAS
Hennings, Emmy: Die Legende der heiligen Theodora /Die Legende der heiligen Theodora von Alexandria (3 Fassungen, evtl. Schluss einer 4. Fassung.) / Hennings, Emmy: Die Legende der heiligen Theodora (evtl. Schluss einer 4. Fassung)
Creators: name: Ball-Hennings, Emmy
Publisher: name: [s.n.]
Year: 2024

description: Dokument
Two Optical Counterpart Candidates of M82-X1 from HST Observations
Creators: name: Wang, Song
name: Liu, Jifeng
name: Bai, Yu
name: Guo, Jincheng
Publisher: name: arXiv
Year: 2015
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Optical counterparts can provide significant constraints on the physical nature of ultraluminous X-ray sources (ULXs). In this letter, we identify six point sources in the error circle of a ULX in M82, namely M82 X-1, by registering Chandra positions onto Hubble Space Telescope images. Two objects are considered as optical counterpart candidates of M82 X-1, which show F658N flux excess compared to the optical continuum that may suggest the existence of an accretion disk. The spectral energy distributions of the two candidates match well with the spectra for supergiants, with stellar types as F5-G0 and B5-G0, respectively. Deep spatially resolved spectroscopic follow-up and detailed studies are needed to identify the true companion and confirm the properties of this BH system.
description: 5 pages, 2 figures. Accepted for publication in ApJL
Beyond Logic. Proceedings of the Conference held in Cerisy-la-Salle, 22-27 May 2017
Creators: name: Fichot, Jean (Hrsg.)
name: Piecha, Thomas (Hrsg.)
Publisher: name: Universität Tübingen
Year: 2017
Subjects: subject: Logik , Wissenschaftstheorie , Informatik , Recht , Musik , Beweis , Beweistheorie , Deduktion , Gentzen, Gerhard , Popper, Karl R.
subject: 004
subject: 100
subject: 340
subject: 510
subject: 780
subject: Logic
subject: Proof
subject: Beweistheoretische Semantik
subject: Proof Theory
subject: Deduction
subject: Categories
subject: Music
subject: Proof-Theoretic Semantics

description: The project "Beyond Logic" is devoted to what hypothetical reasoning is all about when we go beyond the realm of "pure" logic into the world where logic is applied. As such extralogical areas we have chosen philosophy of science as an application within philosophy, informatics as an application within the formal sciences, and law as an application within the field of social interaction. The aim of the conference was to allow philosophers, logicians and computer scientists to present their work in connection with these three areas. The conference took place 22-27 May, 2017 in Cerisy-la-Salle at the Centre Culturel International de Cerisy. The proceedings collect abstracts, slides and papers of the presentations given, as well as a contribution from a speaker who was unable to attend.
The land reclamation along the Hai-Ho river and the birth of modern Tianjin (1897-1937)
Creators: name: Ma, Rui
Publisher: name: International Planning History Society Proceedings
Year: 2018

description: Within the early decades of the twentieth century, the city of Tianjin transformed from a traditional trade terminal to a modern city. The size of settlement expanded more than 10 times during these years which made Tianjin the second largest city in China at that time. For the special natural environment, the topography cannot be neglected in this process. By analyzing of the aquatic environment and topographic condition along the Hai-Ho River, comparing Chinese traditional attitude to water and modern concept of hygiene, and reviewing urban development of concessions before 20th century, this paper argue that land reclamation was a vital and necessary work in building a modern city. Using archive of land filling of Hai-Ho Conservancy Commission, the paper explores the process of land reclamation along the Hai-Ho River and examines the important role of the commission, new filling method and technology in this process. It then focuses on the development of the concessions on the west bank of the river and examines how the land filling evolved in the complex relationship and played an important role.
description: International Planning History Society Proceedings, Vol. 18 No. 1 (2018): Looking at the World History of Planning
Experimental demonstration of quantum contextuality on an NMR qutrit
Creators: name: Dogra, Shruti
name: Dorai, Kavita
name: Arvind
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We experimentally test quantum contextuality of a single qutrit using NMR. The contextuality inequalities based on nine observables developed by Kurzynski et. al. are first reformulated in terms of traceless observables which can be measured in an NMR experiment. These inequalities reveal the contextuality of almost all single-qutrit states. We demonstrate the violation of the inequality on four different initial states of a spin-1 deuterium nucleus oriented in a liquid crystal matrix, and follow the violation as the states evolve in time. We also describe and experimentally perform a single-shot test of contextuality for a subclass of qutrit states whose density matrix is diagonal in the energy basis.
description: 7 pages revtex 4 figures
Discovery and description of two young open clusters in the primordial group of NGC 6871
Creators: name: Casado, Juan
name: Hendy, Yasser
Publisher: name: arXiv
Year: 2022
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: A primordial group of open clusters containing NGC 6871 is confirmed and described through Gaia DR3 data and the previous literature. It is a star-forming complex containing at least six young OCs, including Teutsch 8, FSR 198 and Biurakan 2. Two nearby OCs (Casado 82 and Casado-Hendy 1) are newly identified and studied in detail and found to be also members of the cited group. The parameters of the components are sufficiently similar to postulate the case of at least six clusters born from a single GMC. None of the cluster pairs of the group seems to be an authentic binary cluster, with the possible exception of the candidate pair Teutsch 8/FSR 198. Instead, NGC 6871 seems to be disintegrating, and the primordial group members appear to be dispersing out rapidly. Searching for new open clusters in the vicinity of young or grouped OCs using Gaia data is an efficient strategy to find new associated OCs forming primordial groups.
description: Accepted in MNRAS; 9 pages, 13 figures, 4 tables
Spinfinity
Creators: name: O'Grady, Brian
Publisher: name: Open Science Framework
Year: 2022

description: Three-dimensional (3D) brain organoids derived from human pluripotent stem cells (hPSCs), including human embryonic stem cells (hESCs) and induced pluripotent stem cells (iPSCs), have become a powerful system to study early development events and to model human disease . Cerebral organoids are generally produced in static culture or in a culture vessel with active mixing, and the two most widely used systems for mixing are a large spinning flask and a miniaturized multi-well spinning bioreactor (also known as Spin Omega (Spin)). The Spin provides a system that is amenable to drug testing, has increased throughput and reproducibility, and utilizes less culture media. However, technical limitations of this system include poor stability of select components and an elevated risk of contamination due to the overall setup of the device. Here, we report a new design of the miniaturized bioreactor system, which we term Spinꝏ, that overcomes these concerns to permit long-term experiments.
Dependence of Chemical Abundance on the Cosmic Ray Ionization Rate in IC 348
Creators: name: Luo, Gan
name: Zhang, Zhi-Yu
name: Bisbas, Thomas G.
name: Li, Di
name: Tang, Ningyu
name: Wang, Junzhi
name: Zhou, Ping
name: Zuo, Pei
name: Yue, Nannan
name: Zhou, Jing
name: Lin, Lingrui
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Ions (e.g., H$_3^+$, H$_2$O$^+$) have been used extensively to quantify the cosmic-ray ionization rate (CRIR) in diffuse sightlines. However, measurements of CRIR in low-to-intermediate density gas environments are rare, especially when background stars are absent. In this work, we combine molecular line observations of CO, OH, CH, and HCO$^+$ in the star-forming cloud IC~348, and chemical models to constrain the value of CRIR and study the response of the chemical abundances distribution. The cloud boundary is found to have an $A_{\rm V}$ of approximately 4 mag. From the interior to the exterior of the cloud, the observed $^{13}$CO line intensities drop by an order of magnitude. The calculated average abundance of $^{12}$CO (assuming $^{12}$C/$^{13}$C = 65) is (1.2$\pm$0.9) $\times$10$^{-4}$, which increases by a factor of 6 from the interior to the outside regions. The average abundance of CH (3.3$\pm$0.7 $\times$ 10$^{-8}$) is in good agreement with previous findings in diffuse and translucent clouds ($A_{\rm V}$ $<$ 5 mag). However, we did not find a decline in CH abundance in regions of high extinction ($A_{\rm V}\simeq$8 mag) as previously reported in Taurus. By comparing the observed molecular abundances and chemical models, we find a decreasing trend of CRIR as $A_{\rm V}$ increases. The inferred CRIR of $ζ_{cr}$ = (4.7$\pm$1.5) $\times$ 10$^{-16}$ s$^{-1}$ at low $A_{\rm V}$ is consistent with H$^+_3$ measurements toward two nearby massive stars.
description: 21 pages, 11 figures. Submitted to ApJ
On optimal performance of nonlinear energy sinks in multiple-degree-of-freedom systems
Creators: name: Tripathi, Astitva
name: Grover, Piyush
name: Kalmár-Nagy, Tamas
Publisher: name: arXiv
Year: 2016
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 37N05, 37N35, 70K65, 70K70

description: We study the problem of optimizing the performance of a nonlinear spring-mass-damper attached to a class of multiple-degree-of-freedom systems. We aim to maximize the rate of one-way energy transfer from primary system to the attachment, and focus on impulsive excitation of a two-degree-of-freedom primary system with an essentially nonlinear attachment. The nonlinear attachment is shown to be able to perform as a `nonlinear energy sink' (NES) by taking away energy from the primary system irreversibly for some types of impulsive excitations. Using perturbation analysis and exploiting separation of time scales, we perform dimensionality reduction of this strongly nonlinear system. Our analysis shows that efficient energy transfer to nonlinear attachment in this system occurs for initial conditions close to homoclinic orbit of the slow time-scale undamped system, a phenomenon that has been previously observed for the case of single-degree-of-freedom primary systems. Analytical formulae for optimal parameters for given impulsive excitation input are derived. Generalization of this framework to systems with arbitrary number of degrees-of-freedom of the primary system is also discussed. The performance of both linear and nonlinear optimally tuned attachments is compared. While NES performance is sensitive to magnitude of the initial impulse, our results show that NES performance is more robust than linear tuned-mass-damper to several parametric perturbations. Hence, our work provides evidence that homoclinic orbits of the underlying Hamiltonian system play a crucial role in efficient nonlinear energy transfers, even in high dimensional systems, and gives new insight into robustness of systems with essential nonlinearity.
description: Updated results. 34 pages, 29 figures
Measurements of Ca II Infrared Triplet Lines of Young Stellar Objects
Creators: name: Moto'oka, Keiko
name: Itoh, Yoichi
Publisher: name: arXiv
Year: 2015
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Equivalent widths and line widths of Ca II infrared triplet emission lines were measured in high-resolution optical spectra of 39 young stellar objects.We found that the equivalent widths of the emission lines decrease with stellar evolution. It has been often claimed that strong chromospheric activity is generated by a dynamo process caused by fast rotation of the photosphere. However, we found no clear correlation between the strength of the Ca II lines and the stellar rotation velocity. Instead, we found that the objects with high mass accretion rates had stronger Ca II emission lines. This correlation supports the turbulent chromosphere model or the magnetic accretion theory for classical T Tauri stars. We also noticed that the equivalent widths of Ca II lines of transitional disk objects are one-tenth of those of classical T Tauri stars, even if the masses of the circumstellar disks are comparable.
description: 22 pages, 16 figures
Association of Frailty in Patients undergoing Cardiac Surgery: Scoping Review
Creators: name: JUSTINO, NATALIA
name: Moreira, Rita
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Medicine and Health Sciences
subject: Nursing
subject: FOS: Health sciences
subject: cardiac surgery
subject: frailty
subject: heart diseases
subject: scoping review

description: Association of Frailty in Patients undergoing Cardiac Surgery: Scoping Review is a study conducted in the LILACS, PUBMED, and CINAHAL databases to better understand frailty in patients undergoing cardiac surgery.
Deep solar ALMA neural network estimator for image refinement and estimates of small-scale dynamics
Creators: name: Eklund, Henrik
Publisher: name: arXiv
Year: 2022
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The contrasts and magnitude of observable signatures of small-scale features degrade as angular resolution decreases. High-cadence time-series of synthetic observable maps at 1.25 mm were produced from 3D magnetohydrodynamic Bifrost simulations of the solar atmosphere and degraded to the angular resolution corresponding to observational data with the Atacama Large Millimeter/sub-millimeter Array (ALMA). The Deep Solar ALMA Neural Network Estimator (Deep-SANNE) is an artificial neural network trained to improve the resolution and contrast of solar observations. This is done by recognizing dynamic patterns in both the spatial and temporal domains of small-scale features at an angular resolution corresponding to observational data and correlated them to highly resolved nondegraded data from the magnetohydrodynamic simulations. A second simulation, was used to validate the performance. Deep-SANNE provides maps of the estimated degradation of the brightness temperature, which can be used to filter for locations that most probably show a high accuracy and as correction factors in order to construct refined images that show higher contrast and more accurate brightness temperatures than at the observational resolution. Deep-SANNE reveals more small-scale features and estimates the excess temperature of brightening events with an average accuracy of 94.0% relative to the highly resolved data, compared to 43.7% at the observational resolution. By using the additional information of the temporal domain, Deep-SANNE can restore high contrasts better than a standard two-dimensional deconvolver technique. Deep-SANNE is applied on observational solar ALMA data. The Deep-SANNE refined images are useful for analysing small-scale and dynamic features. They can identify locations in the data with high accuracy for an in-depth analysis and allow a more meaningful interpretation of solar observations.
description: 11 pages, 7 figures. Accepted for publication in Astronomy and Astrophysics
Hennings, Emmy: Keckeis, Gustav: Die Fremde Zeit. Artemis-Verlag, [Zürich] / Hennings, Emmy: Keckeis, Gustav: Die Fremde Zeit. Artemis-Verlag, [Zürich] (3. Fassung)
Creators: name: Ball-Hennings, Emmy
Publisher: name: [s.n.]
Year: 2024

description: Dokument
Hennings, Emmy: Picard, Max: Die unerschütterliche Ehe. Verlag Eugen Rentsch, Zürich. / Hennings, Emmy: Picard, Max: Die unerschütterliche Ehe. Verlag Eugen Rentsch, Zürich. (Fassung B)
Creators: name: Ball-Hennings, Emmy
Publisher: name: [s.n.]
Year: 2024

description: Dokument
Ankara commuter line as the product and witness of modern planning experience in Turkey
Creators: name: Sert, Selin Cavdar
name: Butuner, Funda Bas
name: Aral, Ela Alanyah
Publisher: name: International Planning History Society Proceedings
Year: 2018

description: Evolution of commuter rail transit systems has always served a tight relationship with the development of urban planning theory and practice. Commuter rail development in Ankara has a peculiar history begun with the pronunciation of Ankara as the capital city of the new regime in 1923, as opposed to its numerous contemporaries which had emerged as the lasting effects of Industrial Revolution on cities. In the earlier plans representing the culturalist school of spatial organization, Ankara commuter line was recognized as a planning tool in the designation of the rural-urban continuum, urban green network, community spaces and logistic centers. The commuter line together with adjoined uses, today, might be a remarkable case in the broad identification of the railway heritage assets as well as the complementary relationship between urban morphology and history. Besides being a mass transport service covering approximately 37 km distance, the line provides planning opportunities in consolidating the fragmented historic properties (historic villages, landed estates, industrial areas etc.) of the Republican period plans and discovering the spatial interactions generated by the railway lines. In this respect, the aim of this study is to reveal the significance of Ankara Commuter Line as a city planning legacy by mapping its earlier development and accompanied built and landscape heritages.
description: International Planning History Society Proceedings, Vol. 18 No. 1 (2018): Looking at the World History of Planning
Detection of a bright burst from the repeating FRB 20201124A at 2 GHz
Creators: name: Ikebe, Sota
name: Takefuji, Kazuhiro
name: Terasawa, Toshio
name: Eie, Sujin
name: Akahori, Takuya
name: Murata, Yasuhiro
name: Hashimoto, Tetsuya
name: Kisaka, Shota
name: Honma, Mareki
name: Yoshiura, Shintaro
name: Suzuki, Syunsaku
name: Oyama, Tomoaki
name: Sekido, Mamoru
name: Niinuma, Kotaro
name: Takeuchi, Hiroshi
name: Yonekura, Yoshinori
name: Enoto, Teruaki
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present a detection of a bright burst from FRB 20201124A, which is one of the most active repeating FRBs, based on S-band observations with the 64-m radio telescope at the Usuda Deep Space Center/JAXA. This is the first FRB observed by using a Japanese facility. Our detection at 2 GHz in February 2022 is the highest frequency for this FRB and the fluence of $>$ 189 Jy ms is one of the brightest bursts from this FRB source. We place an upper limit on the spectral index $α$ = -2.14 from the detection of the S band and non-detection of the X band at the same time. We compare an event rate of the detected burst with ones of the previous research, and suggest that the power-law of the luminosity function might be broken at lower fluence, and the fluences of bright FRBs distribute up to over 2 GHz with the power-law against frequency. In addition, we show the energy density of the burst detected in this work was comparable to the bright population of one-off FRBs. We propose that repeating FRBs can be as bright as one-off FRBs, and only their brightest bursts could be detected so some of repeating FRBs intrinsically might have been classified as one-off FRBs.
description: 8 pages, 5 figures, accepted for publication in Publications of the Astronomical Society of Japan (PASJ)
Asymmetry in the number of L4 and L5 Jupiter Trojans driven by jumping Jupiter
Creators: name: Li, Jian
name: Xia, Zhihong Jeff
name: Yoshida, Fumi
name: Georgakarakos, Nikolaos
name: Li, Xin
Publisher: name: arXiv
Year: 2022
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Context. More than 10000 Jupiter Trojans have been detected so far. They are moving around the L4 and L5 triangular Lagrangian points of the Sun-Jupiter system and their distributions can provide important clues to the early evolution of the Solar System. Aims. The number asymmetry of the L4 and L5 Jupiter Trojans is a longstanding problem. We aim to test a new mechanism in order to explain this anomalous feature by invoking the jumping-Jupiter scenario. Methods. First, we introduce the orbital evolution of Jupiter caused by the giant planet instability in the early Solar System. In this scenario, Jupiter could undergo an outward migration at a very high speed. We then investigate how such a jump changes the numbers of the L4 (N4) and L5 (N5) Trojans. Results. The outward migration of Jupiter can distort the co-orbital orbits near the Lagrangian points, resulting in L4 Trojans being more stable than the L5 ones. We find that, this mechanism could potentially explain the unbiased number asymmetry of N4/N5~1.6 for the known Jupiter Trojans. The uncertainties of the system parameters, e.g. Jupiter's eccentricity and inclination, the inclination distribution of Jupiter Trojans, are also taken into account and our results about the L4/L5 asymmetry have been further validated. However, the resonant amplitudes of the simulated Trojans are excited to higher values compared to the current population. A possible solution is that collisions among the Trojans may reduce their resonant amplitudes.
description: 11 pages, 5 figures, accepted for publication in A&A
History matters in making Lahore sustainable
Creators: name: Imran, Muhammad
name: Mehmood, Abid
name: Cheema, Abdur Rehman
Publisher: name: International Planning History Society Proceedings
Year: 2018

description: Lahore, the second-largest city of Pakistan, is facing sharp population growth and economic development coupled with increased motorisation and a deteriorating urban environment. This is due to a long history of investment into roads and low-density suburban housing development in Lahore which increases motorisation. This paper provides a historical overview of urban planning in Lahore by shedding light on the Mughal and the British period of development followed by the post-independence planning paradigm in the city. This paper examines the contradictions and uncertainties that have characterised urban planning in Lahore in the pre and post-independence period by using a sustainable city and sustainable transport literature. The analysis shows that Lahore traditionally attracted investment in the high-quality roads infrastructure (flyovers, underpasses and a ring road) and recently in the country first ever Bus Rapid Transit (BRT) system (2013) and Metro Train project (2018) in the city. The paper argues that the Lahore BRT and Metro train projects can provide a window of opportunity to redefine transport and land use issues and offer a transit-oriented development (TOD) solutions in Lahore.
description: International Planning History Society Proceedings, Vol. 18 No. 1 (2018): Looking at the World History of Planning
Formation of the Mg II h and k polarization profiles in a solar plage model and their suitability to infer magnetic fields
Creators: name: Delgado, David Afonso
name: Alemán, Tanausú del Pino
name: Bueno, Javier Trujillo
Publisher: name: arXiv
Year: 2022
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The Mg II h and k lines are among the strongest in the near-ultraviolet solar spectrum and their line core originates in the upper chromosphere, just below the transition region. Consequently, they have become one of the main targets for investigating the magnetism of the upper solar atmosphere. The recent CLASP2 mission obtained unprecedented spectropolarimetric data of these lines in an active region plage, which have already been used to infer the longitudinal component of the magnetic field by applying the weak field approximation. In this paper, we aim at improving our understanding of the diagnostic capabilities of these lines by studying the emergent Stokes profiles resulting from radiative transfer calculations in a radiative magneto-hydrodynamic (rMHD) time-dependent model representative of a solar plage. To this end, we create a synthetic observation with temporal and spatial resolutions similar to those of CLASP2. We find strong asymmetries in the circular polarization synthetic profiles which considerably complicate the application of the weak field approximation. We demonstrate that the selective application of the weak field approximation to fit different spectral regions in the profile allows to retrieve information about the longitudinal component of the magnetic field at different regions of the model atmosphere, even when the circular polarization profiles are not anti-symmetric and are formed in the presence of strong velocity and magnetic field gradients.
description: Accepted for publication in ApJ
Hennings, Emmy: Die Legende der heiligen Theodora /Die Legende der heiligen Theodora von Alexandria (3 Fassungen, evtl. Schluss einer 4. Fassung.) / Hennings, Emmy: Die Legende der heiligen Theodora (3. Fassung)
Creators: name: Ball-Hennings, Emmy
Publisher: name: [s.n.]
Year: 2024

description: Dokument