cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The density matrix renormalization group algorithm on kilo-processor architectures: implementation and trade-offs
Creators: name: Nemes, Csaba
name: Barcza, Gergely
name: Nagy, Zoltán
name: Legeza, Örs
name: Szolgay, Péter
Publisher: name: arXiv
Year: 2013
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: In the numerical analysis of strongly correlated quantum lattice models one of the leading algorithms developed to balance the size of the effective Hilbert space and the accuracy of the simulation is the density matrix renormalization group (DMRG) algorithm, in which the run-time is dominated by the iterative diagonalization of the Hamilton operator. As the most time-dominant step of the diagonalization can be expressed as a list of dense matrix operations, the DMRG is an appealing candidate to fully utilize the computing power residing in novel kilo-processor architectures. In the paper a smart hybrid CPU-GPU implementation is presented, which exploits the power of both CPU and GPU and tolerates problems exceeding the GPU memory size. Furthermore, a new CUDA kernel has been designed for asymmetric matrix-vector multiplication to accelerate the rest of the diagonalization. Besides the evaluation of the GPU implementation, the practical limits of an FPGA implementation are also discussed.
description: 14 pages, 20 figures
The Coincidence of Nuclear Star Clusters and Active Galactic Nuclei
Creators: name: Seth, Anil
name: Agüeros, Marcel Andre
name: Lee, Duane
name: Basu-Zych, Antara
Publisher: name: Columbia University
Year: 2008
Subjects: Astrophysics
Active galactic nuclei
Active galactic nuclei--Spectra
Stars--Clusters
Black holes (Astronomy)
Astronomy

description: We study galaxies that host both nuclear star clusters and AGNs, implying the presence of a massive black hole. We select a sample of 176 galaxies with previously detected nuclear star clusters that range from ellipticals to late-type spirals. We search for AGNs in this sample using optical spectroscopy and archival radio and X-ray data. We find galaxies of all Hubble types and with a wide range of masses (109-1011 M☉) hosting both AGNs and nuclear star clusters. From the optical spectra, we classify 10% of the galaxies as AGN and an additional 15% as composite, indicating a mix of AGN and star formation spectra. The fraction of nucleated galaxies with AGNs increases strongly as a function of galaxy and nuclear star cluster mass. For galaxies with both a nuclear star cluster and a black hole, we find that the masses of these two objects are quite similar. However, nondetections of black holes in Local Group nuclear star clusters show that not all clusters host black holes of similar masses. We discuss the implications of our results for the formation of nuclear star clusters and massive black holes.
Posttraumatic stress due to an acute coronary syndrome increases risk of 42-month major adverse cardiac events and all-cause mortality
Creators: name: Edmondson, Donald E.
name: Rieckmann, Nina
name: Shaffer, Jonathan A.
name: Schwartz, Joseph E.
name: Burg, Matthew M.
name: Davidson, Karina W.
name: Clemow, Lynn
name: Shimbo, Daichi
name: Kronish, Ian M.
Publisher: name: Columbia University
Year: 2011
Subjects: Coronary heart disease--Patients
Medicine and psychology
Coronary heart disease--Risk factors
Post-traumatic stress disorder
Mental health
Medicine

description: Approximately 15% of patients with acute coronary syndromes (ACS) develop posttraumatic stress disorder (PTSD) due to their ACS event. We assessed whether ACS-induced PTSD symptoms increase risk for major adverse cardiac events (MACE) and all-cause mortality (ACM) in an observational cohort study of 247 patients (aged 25–93 years; 45% women) hospitalized for an ACS at one of 3 academic medical centers in New York and Connecticut between November 2003 and June 2005. Within 1 week of admission, patient demographics, Global Registry of Acute Coronary Events risk score, Charlson comorbidity index, left ventricular ejection fraction, and depression status were obtained. At 1-month follow-up, ACS-induced PTSD symptoms were assessed with the Impact of Events Scale-Revised. The primary endpoint was combined MACE (hospitalization for myocardial infarction, unstable angina or urgent/emergency coronary revascularization procedures) and ACM, which were actively surveyed for 42 months after index event. Thirty-six (15%) patients had elevated intrusion symptoms, 32 (13%) elevated avoidance symptoms, and 21 (9%) elevated hyperarousal symptoms. Study physicians adjudicated 21 MACEs and 15 deaths during the follow-up period. In unadjusted Cox proportional hazards regression analyses, and analyses adjusted for sex, age, clinical characteristics and depression, high intrusion symptoms were associated with the primary endpoint (adjusted hazard ratio, 3.38; 95% confidence interval, 1.27–9.02; p = .015). Avoidance and hyperarousal symptoms were not associated with the primary endpoint. The presence of intrusion symptoms is a strong and independent predictor of elevated risk for MACE and ACM, and should be considered in the risk stratification of ACS patients.
From Shattered Assumptions to Weakened Worldviews: Trauma Symptoms Signal Anxiety Buffer Disruption
Creators: name: Edmondson, Donald E.
name: Chaudoir, Stephenie R.
name: Mills, Mary Alice
name: Park, Crystal L.
name: Holub, Julie
name: Bartkowiak, Jennifer M.
Publisher: name: Columbia University
Year: 2011
Subjects: Medicine and psychology
Post-traumatic stress disorder--Research
Mental health
Medicine

description: The fundamental assertion of worldview-based models of posttraumatic stress disorder (PTSD) is that trauma symptoms result when traumatic experiences cannot be readily assimilated into previously held worldviews. In two studies, we test the anxiety buffer disruption hypothesis, which states that trauma symptoms result from the disruption of normal death anxiety–buffering functions of worldviews. In Study 1, participants with trauma symptoms greater than the cutoff for PTSD evinced greater death thought accessibility than those with subclinical or negligible symptoms after a reminder of death. In Study 2, participants with clinically significant trauma symptoms showed no evidence of worldview defense though death thoughts were accessible. These results support the anxiety buffer disruption hypothesis and suggest an entirely new approach to experimental PTSD research.
Cultura & Diseño de Experiencias
Creators: name: Aparicio de Soto, Jesús
Publisher: name: figshare
Year: 2022
Subjects: subject: Design
subject: 120302 Design Innovation
subject: FOS: Arts (arts, history of arts, performing arts, music)
subject: Information Systems
subject: FOS: Computer and information sciences
subject: 80703 Human Information Behaviour
subject: FOS: Media and communications

description: This overview opens with a discussion of human holistic and analytic kinds of understanding, comparing eastern and western viewpoints, focusing on their impact for usability studies. Then, the understanding of human groups and the ability to reach group agreements are briefly addressed moving on to a comparative detail regarding their impact on commercial relations. Further on, this allows approaching systems’ design while focusing on culture, moving on to a cross-country research review. Finally, based on a folkloric sketch for Chile, a comparison of some defining characteristics to build a chilean user persona is presented. The text closes with a comparative review that seeks to promote the combination of qualitative and quantitative studies.
British Columbia Legislative Assembly sessional clipping book (1964-02)
Creators: name: :Unav
Publisher: name: University of Victoria Libraries
Year: 2022
Subjects: subject: Politics and government
valueUri: http://id.worldcat.org/fast/1919741
subject: British Columbia. Legislative Assembly
valueUri: http://id.worldcat.org/fast/600765
subject: Law
valueUri: http://id.worldcat.org/fast/993678
subject: FOS: Law

description: These Sessional Clippings books cover the period 1891 to 1972, and include newspaper accounts written by various legislative reporters who covered debates occurring in the British Columbia Legislative Assembly. Transcripts of debates of the Legislative Assembly (Hansard) were not published in B.C. until 1970; hence these "Sessional Clipping Books" augment the "Journals", the record of daily proceedings of the Legislative Assembly. Selected clippings from various newspapers including the Vancouver Sun, the Vancouver Province, the Colonist, and the Times newspapers, relating to the newspaper reports concerning activities of the Legislature. The original sessional clippings books comprise 351 ledger size print volumes, held at the Legislative Library in Victoria BC. The print volumes were microfilmed onto 26 reels in 1977 under a Tri University Libraries (TRIUL) project by Precision Micrographic Services (Vancouver, B.C.), with the permission of the Legislative Library, Victoria, British Columbia. This digital collection was created by scanning the 26 microfilm reels.
Vulpes cana Blanford 1877
Creators: name: Honacki, James H.
name: Kinman, Kenneth E.
name: Koeppl, James W.
Publisher: name: Zenodo
Year: 1982
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Carnivora
Canidae
Vulpes
Vulpes cana

description: Vulpes cana Blanford, 1877. J. Asiat. Soc. Bengal, 2:321. TYPE LOCALITY: Pakistan, Baluchistan, Gwadar. DISTRIBUTION: Turkmenia (S.E. U.S. S. R.); Afghanistan; N. E. Iran; Pakistan. COMMENT: Placed in genus Canis, subgenus Vulpes; by Van Gelder, 1978:8. PROTECTED STATUS: CITES - Appendix II. ISIS NUMBER: 5301412001015002001.
description: Published as part of James H. Honacki, Kenneth E. Kinman & James W. Koeppl, 1982, Order Carnivora, pp. 244-289 in Mammal Species of the World (1 st Edition), Lawrence, Kansas, USA :Alien Press, Inc. & The Association of Systematics Collections on page 248, DOI: 10.5281/zenodo.7352980
description: {"references": ["Van Gelder, R. G. 1978. A review of canid classification. American Museum Novitates, 2646: 1 - 10."]}
title: Coastal Groundwater Catchments of the Gulf of Alaska
Creators: name: Russo, Aeon
Publisher: name: University of Massachusetts Amherst
Year: 2021

description: High latitude mountain environments are experiencing disproportionately adverse effects in a currently changing climate. The Gulf of Alaska (GoA) region is an exemplar of this. Dramatic shifts are occurring in the region’s freshwater reservoirs as glaciers retreat more with each passing year. Research in the region places much focus on observing and predicting climate driven shifts in glacier mass balance, surface discharge, and associated nutrient fluxes to the ocean. On the other hand, coastal groundwater discharge (CGD) is given very little attention. Global and near-global estimates of CGD indicate variable results spanning an order of magnitude. Focusing on regionally speciﬁc processes may provide more reliable estimates of CGD and allow isolation of CGD hotspots. This is of particular importance in the GoA region where complex topography, geology, and climate are coupled with recharge derived from rain, snow, and ice. I estimate CGD to the GoA with a water balance that integrates high temporal and spatial resolution recharge inputs and distinguishes between high conductivity surﬁcial deposit and bedrock catchments. I ﬁnd that CGD contributes nearly 3% of the total freshwater ﬂux to the GoA, equivalent to a mean annual ﬂux of 20.8 km3, and that CGD has been increasing by 0.5%/year over the past 4 decades. Although freshwater discharge to the GOA is well-constrained, the importance of fresh CGD to the GoA has, thus far, been overlooked.
More Viable Parameter Space for Leptogenesis
Creators: name: Garbrecht, Bjorn
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Lepton flavour asymmetries generated at the onset of the oscillations of sterile neutrinos with masses above the electroweak scale can be large enough to partly survive washout and to explain the baryon asymmetry of the Universe. This opens up new regions of parameter space, where Leptogenesis is viable within the type-I seesaw framework. In particular, we find it possible that the sterile neutrinos masses are substantially below 10^9 GeV, while not being degenerate. However, the required reheat temperature that is determined by the begin of the oscillations lies some orders of magnitude above the sterile neutrino mass-scale.
description: 20 pages, journal version, explanations added
British Columbia Legislative Assembly sessional clipping book (1964-03)
Creators: name: :Unav
Publisher: name: University of Victoria Libraries
Year: 2022
Subjects: subject: British Columbia. Legislative Assembly
valueUri: http://id.worldcat.org/fast/600765
subject: Law
valueUri: http://id.worldcat.org/fast/993678
subject: FOS: Law
subject: Politics and government
valueUri: http://id.worldcat.org/fast/1919741

description: These Sessional Clippings books cover the period 1891 to 1972, and include newspaper accounts written by various legislative reporters who covered debates occurring in the British Columbia Legislative Assembly. Transcripts of debates of the Legislative Assembly (Hansard) were not published in B.C. until 1970; hence these "Sessional Clipping Books" augment the "Journals", the record of daily proceedings of the Legislative Assembly. Selected clippings from various newspapers including the Vancouver Sun, the Vancouver Province, the Colonist, and the Times newspapers, relating to the newspaper reports concerning activities of the Legislature. The original sessional clippings books comprise 351 ledger size print volumes, held at the Legislative Library in Victoria BC. The print volumes were microfilmed onto 26 reels in 1977 under a Tri University Libraries (TRIUL) project by Precision Micrographic Services (Vancouver, B.C.), with the permission of the Legislative Library, Victoria, British Columbia. This digital collection was created by scanning the 26 microfilm reels.
Electronic and Transport Properties of Molecular Junctions under a Finite Bias: A Dual Mean Field Approach
Creators: name: Liu, Shuanglong
name: Feng, Yuan Ping
name: Zhang, Chun
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We show that when a molecular junction is under an external bias, its properties can not be uniquely determined by the total electron density in the same manner as the density functional theory (DFT) for ground state (GS) properties. In order to correctly incorporate bias-induced nonequilibrium effects, we present a dual mean field (DMF) approach. The key idea is that the total electron density together with the density of current-carrying electrons are sufficient to determine the properties of the system. Two mean fields, one for current-carrying electrons and the other one for equilibrium electrons can then be derived.By generalizing the Thomas-Fermi-Dirac (TFD) model to non-equilibrium cases, we analytically derived the DMF exchange energy density functional. We implemented the DMF approach into the computational package SIESTA to study non-equilibrium electron transport through molecular junctions. Calculations for a graphene nanoribbon (GNR) junction show that compared with the commonly used \textit{ab initio} transport theory, the DMF approach could significantly reduce the electric current at low biases due to the non-equilibrium corrections to the mean field potential in the scattering region.
description: 5 pages, 3 figures
Relation of Inflammation to Depression and Incident Coronary Heart Disease
Creators: name: Davidson, Karina W.
name: Schwartz, Joseph E.
name: Kirkland, Susan A.
name: Mostofsky, Elizabeth
name: Fink, Daniel
name: Guernsey, Duane
name: Shimbo, Daichi
Publisher: name: Columbia University
Year: 2009
Subjects: Depression, Mental
Inflammation
Coronary heart disease
Mental health

description: Numerous studies have found that depression was a strong independent risk factor for incident coronary heart disease (CHD), with increasing risk in those with higher levels of depressive symptoms. The association between measures of inflammation (C-reactive protein, interleukin-6, and soluble intracellular adhesion molecule-1), depressive symptoms, and CHD incidence was examined in 1,794 subjects of the population-based Canadian Nova Scotia Health Survey. There were 152 incident CHD events (8.5%; 141 nonfatal, 11 fatal) during the 15,514 person-years of observation (incidence rate 9.8 events/1,000 person-years). Depression and inflammation were correlated at baseline and each significantly predicted CHD in separate models. When both risk factors were in the same model, each remained significant. The association between depressed group by the Center for Epidemiological Studies-Depression scale (score > or =10 vs 0 to 9) and CHD incidence (hazard rate 1.60, 95% confidence interval 1.12 to 2.27) was not reduced by the addition of inflammatory markers to the model (hazard rate 1.59, 95% confidence interval 1.12 to 2.26). Findings were similar after adjustment for aspirin, lipid-lowering medication, or antidepressant use, and the association did not vary by gender, smoking status, age, obesity, cardiovascular medication use, or antidepressant use. In conclusion, increased inflammation explained only a very small proportion of the association between depression and incident CHD.
Ten golden rules of design for sustainability
Creators: name: Bakker, Conny
Publisher: name: Technische Universität Berlin
Year: 2021
Subjects: subject: 500 Naturwissenschaften und Mathematik
subject: 600 Technik, Technologie
subject: 300 Sozialwissenschaften
subject: design
subject: guidelines
subject: sustainability
subject: circular economy
subject: product-service systems

description: This paper presents a generic set of guidelines of Design for Sustainability (DfS), targeted at product and service design students. A literature review showed that almost all generic guidelines of DfS are over a decade old and relatively outdated. Recent DfS literature tends to focus on sector, life cycle stage or industry-specific guidelines. However, for students of design, having a number of state-of-the-art DfS guidelines that give an overview of the field, was considered useful as the field is currently experiencing a period of rapid development and renewal. For design researchers the guidelines can serve as a springboard for a debate on recent developments in design for sustainability. The paper presents the ‘ten golden rules of design for sustainability’ based on literature and the general discourse in the field. The ten golden rules are ordered according to the product lifecycle and include a system-level perspective. The rules are: (1) design adaptive systems, (2) design for net-positive impact, (3) go bio and renewable, (4) go clean, (5) do with less, (6) ensure equity and well-being, (7) support and shape sustainable lifestyles, (8) design for long use and reuse, (9) design for endings and (10) design for recovery.
title: Die Neu-auffgehende Chymische Sonne, samt ihrem Glantz und Schein, weiset alle Gott-ergebene Sucher, auf den rechten Pfad; 1750
title: subjectum ac primam materiam Lapidis Philosophorum & omnium rerum zu suchen, zu finden, und zu elaboriren ; wie dann das nöthigste aus wahrer Philosophorum Schrifften extrahirt beygefügt zu finden
titleType: Subtitle
Creators: name: (:Unav)
Publisher: name: Universitätsbibliothek der Ludwig-Maximilians-Universität München
Year: 2012

description: In Fraktur
Connecting sea? Modelling economic cohesion in the Roman Adriatic
Creators: name: McLean, Andrew
Publisher: name: The University of Edinburgh
Year: 2022
Subjects: Roman Adriatic
archaeological analysis
maritime movement
Roman economic concepts
Roman transport infrastructure

description: This thesis focuses on modelling complex economic concepts in the Roman Adriatic. A quantitative focus is taken, and an effort is made to consider evidence from across the region, both terrestrial and maritime, from the offset. Section A considers the geographic and ecological evidence, taking a consciously non-archaeological approach in order to identify micro-regions within the wider region. This also introduces Circuit Theory (CT), which is central to modelling potential connectivity and ultimately economic cohesion in this thesis. Section B is focused on the archaeological evidence, considering the urban population, wine and oil production and the transport infrastructure of the Adriatic. For each of these, the archaeological evidence is compared to the geographic and ecological evidence established in Section A. The CT data is used to identify areas and sites of particular significance, and through this, a complex economic system, operating on multiple scales begins to emerge; potential connectivity is at the centre of all of this. In Section C, the distribution of amphorae and shipwrecks is considered. This expands on the production and connectivity outlined in Section B, and begins to more directly model the economic system in which the Roman Adriatic functioned through quantitative analysis. This thesis demonstrates the importance of geography and potential mobility to ancient economies. A combined maritime and terrestrial approach is vital for any full understanding. Ultimately, this thesis demonstrates that the Roman Adriatic existed as a distinct economic system but one which was reliant on the wider Roman economy. Inter-regional trade was important and prevalent, extra-regional trade was organised in a more hierarchical system, with access to the wider economy likely conducted primarily through relatively few large sites in the north.
Late-time vacuum phase transitions: Connecting sub-eV scale physics with cosmological structure formation
Creators: name: Patwardhan, Amol V.
name: Fuller, George M.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We show that a particular class of postrecombination phase transitions in the vacuum can lead to localized overdense regions on relatively small scales, roughly 10^6 to 10^10 M_sun, potentially interesting for the origin of large black hole seeds and for dwarf galaxy evolution. Our study suggests that this mechanism could operate over a range of conditions which are consistent with current cosmological and laboratory bounds. One byproduct of phase transition bubble-wall decay may be extra radiation energy density. This could provide an avenue for constraint, but it could also help reconcile the discordant values of the present Hubble parameter (H_0) and sigma_8 obtained by cosmic microwave background (CMB) fits and direct observational estimates. We also suggest ways in which future probes, including CMB considerations (e.g., early dark energy limits), 21-cm observations, and gravitational radiation limits, could provide more stringent constraints on this mechanism and the sub-eV scale beyond-standard-model physics, perhaps in the neutrino sector, on which it could be based. Late phase transitions associated with sterile neutrino mass and mixing may provide a way to reconcile cosmological limits and laboratory data, should a future disagreement arise.
description: 17 pages, 18 figures. v2: includes additional references and minor corrections/clarifications. v3: includes additional text, figures, and references (matches published version)
Image-guided therapy system for interstitial gynecologic brachytherapy in a multimodality operating suite
Creators: name: Egger, Jan
Publisher: name: arXiv
Year: 2013
Subjects: subject: Computational Engineering, Finance, and Science (cs.CE)
subject: Medical Physics (physics.med-ph)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: In this contribution, an image-guided therapy system supporting gynecologic radiation therapy is introduced. The overall workflow of the presented system starts with the arrival of the patient and ends with follow-up examinations by imaging and a superimposed visualization of the modeled device from a PACS system. Thereby, the system covers all treatments stages (pre-, intra- and postoperative) and has been designed and constructed by a computer scientist with feedback from an interdisciplinary team of physicians and engineers. This integrated medical system enables dispatch of diagnostic images directly after acquisition to a processing workstation that has an on-board 3D Computer Aided Design model of a medical device. Thus, allowing precise identification of catheter location in the 3D imaging model which later provides rapid feedback to the clinician regarding device location. Moreover, the system enables the ability to perform patient-specific pre-implant evaluation by assessing the placement of interstitial needles prior to an intervention via virtual template matching with a diagnostic scan.
description: 7 pages, 3 figures
British Columbia Legislative Assembly sessional clipping book (1965-01)
Creators: name: :Unav
Publisher: name: University of Victoria Libraries
Year: 2022
Subjects: subject: Politics and government
valueUri: http://id.worldcat.org/fast/1919741
subject: British Columbia. Legislative Assembly
valueUri: http://id.worldcat.org/fast/600765
subject: Law
valueUri: http://id.worldcat.org/fast/993678
subject: FOS: Law

description: These Sessional Clippings books cover the period 1891 to 1972, and include newspaper accounts written by various legislative reporters who covered debates occurring in the British Columbia Legislative Assembly. Transcripts of debates of the Legislative Assembly (Hansard) were not published in B.C. until 1970; hence these "Sessional Clipping Books" augment the "Journals", the record of daily proceedings of the Legislative Assembly. Selected clippings from various newspapers including the Vancouver Sun, the Vancouver Province, the Colonist, and the Times newspapers, relating to the newspaper reports concerning activities of the Legislature. The original sessional clippings books comprise 351 ledger size print volumes, held at the Legislative Library in Victoria BC. The print volumes were microfilmed onto 26 reels in 1977 under a Tri University Libraries (TRIUL) project by Precision Micrographic Services (Vancouver, B.C.), with the permission of the Legislative Library, Victoria, British Columbia. This digital collection was created by scanning the 26 microfilm reels.
Ship Detection and Segmentation using Image Correlation
Creators: name: Kadyrov, Alexander
name: Yu, Hui
name: Liu, Honghai
Publisher: name: arXiv
Year: 2013
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: There have been intensive research interests in ship detection and segmentation due to high demands on a wide range of civil applications in the last two decades. However, existing approaches, which are mainly based on statistical properties of images, fail to detect smaller ships and boats. Specifically, known techniques are not robust enough in view of inevitable small geometric and photometric changes in images consisting of ships. In this paper a novel approach for ship detection is proposed based on correlation of maritime images. The idea comes from the observation that a fine pattern of the sea surface changes considerably from time to time whereas the ship appearance basically keeps unchanged. We want to examine whether the images have a common unaltered part, a ship in this case. To this end, we developed a method - Focused Correlation (FC) to achieve robustness to geometric distortions of the image content. Various experiments have been conducted to evaluate the effectiveness of the proposed approach.
description: 8 pages, to be published in proc. of conference IEEE SMC 2013
The Association of Emergency Department Crowding During Treatment for Acute Coronary Syndrome With Subsequent Posttraumatic Stress Disorder Symptoms
Creators: name: Edmondson, Donald E.
name: Shimbo, Daichi
name: Ye, Siqin
name: Wyer, Peter C.
name: Davidson, Karina W.
Publisher: name: Columbia University
Year: 2013
Subjects: Coronary heart disease--Patients
Hospitals--Emergency services
Medicine and psychology
Post-traumatic stress disorder
Mental health
Medicine

description: Our recent meta-analysis of 24 studies (N = 2383 patients) found that 12% of patients with acute coronary syndrome (ACS) (including patients with ST-segment elevation myocardial infarction [STEMI], non-STEMI, and unstable angina [UA]) develop posttraumatic stress disorder (PTSD) symptoms owing to their ACS, and that these PTSD symptoms 1 month post-ACS are associated with a doubling of risk for ACS recurrence or mortality in the subsequent 1 to 3 years. Although we reviewed the known risk factors for ACS-induced PTSD, including demographic and psychological factors, we noted that no study has addressed the possibility that the medical environments in which initial ACS diagnosis and treatment occur might contribute to the traumatic nature of patients' experience during their ACS events. The emergency department (ED) is the initial medical environment for most patients with ACS, and the ED they enter is often overcrowded and chaotic. This overcrowding problem has recently been identified as a public health problem by the Institute of Medicine,3 due in part to associated delays in treatment and lower patient satisfaction. Emergency department crowding may contribute to poor cardiovascular outcomes in patients who present with chest pain,4 and we believe that crowded EDs may also contribute to increased risk for ACS-induced PTSD. We hypothesized that greater ED crowding would be associated with increased ACS-induced PTSD symptoms 1 month after presentation at an ED with an ACS event.
An approach to normal forms of Kuramoto model with distributed delays and the effect of minimal delay
Creators: name: Niu, Ben
name: Guo, Yuxiao
name: Jiang, Weihua
Publisher: name: arXiv
Year: 2014
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics

description: Heterogeneous delays with positive lower bound (gap) are taken into consideration in Kuramoto oscillators. We first establish a perturbation technique, by which universal normal forms and detailed dynamical behavior of this model can be obtained easily. Theoretically, a hysteresis loop is found near the subcritically bifurcated coherent state on the Ott-Antonsen's manifold. For Gamma distributed delay with fixed variance and mean, we find large gap destroys the loop and significantly increases in the number of coexisted coherent attractors. This result is also explained in the viewpoint of excess kurtosis.
description: 18 pages, 6 figures
Posttraumatic stress and myocardial infarction risk perceptions in hospitalized acute coronary syndrome patients
Creators: name: Edmondson, Donald E.
name: Shaffer, Jonathan A.
name: Denton, Ellen-Ge
name: Shimbo, Daichi
name: Clemow, Lynn
Publisher: name: Columbia University
Year: 2012
Subjects: Post-traumatic stress disorder
Myocardial infarction--Patients
Medicine and psychology
Myocardial infarction--Risk factors
Mental health
Medicine

description: Posttraumatic stress disorder (PTSD) is related to acute coronary syndrome (ACS; i.e., myocardial infarction or unstable angina) recurrence and poor post-ACS adherence to medical advice. Since risk perceptions are a primary motivator of adherence behaviors, we assessed the relationship of probable PTSD to ACS risk perceptions in hospitalized ACS patients (n = 420). Participants completed a brief PTSD screen 3–7 days post-ACS, and rated their 1-year ACS recurrence risk relative to other men or women their age. Most participants exhibited optimistic bias (mean recurrence risk estimate between “average” and “below average”). Further, participants who screened positive for current PTSD (n = 15) showed significantly greater optimistic bias than those who screened negative (p < 0.05), after adjustment for demographics, ACS severity, medical comorbidities, depression, and self-confidence in their ability to control their heart disease. Clinicians should be aware that psychosocial factors, and PTSD in particular, may be associated with poor adherence to medical advice due to exaggerated optimistic bias in recurrence risk perceptions.
Dynamic Assessment: A Dialectical Integration of Assessment and Instruction
Creators: name: Vafaee, Payman
Publisher: name: Columbia University
Year: 2011
Subjects: Educational planning
Language and languages--Ability testing
Feedback (Psychology)
Education
English language--Study and teaching--Foreign speakers

description: Formative assessment (FA), in contrast to product-oriented summative assessment, is carried out in the classroom for the purposes of providing students developmental feedback. With a close relationship to instruction, FA is done to analyze both learning goals and the instructional processes involved. This kind of classroom-based assessment can be used to raise the learners‟ awareness of the language content and lesson objectives (Rea-Dickins, 2001; Rea-Dickins, 2006; Rea-Dickins & Gardner, 2000). According to Rea-Dickens (2007), good FA practices provide learners with ample opportunities for language practice by involving them in collaborative learning activities and offering them self- and peer-assessment opportunities.
Formative Assessment: A Cognitive Perspective
Creators: name: Theodoropulos, Christos
Publisher: name: Columbia University
Year: 2011
Subjects: Language and languages--Ability testing
Selectivity (Psychology)
Second language acquisition
Education
English language--Study and teaching--Foreign speakers

description: The roles of attention and awareness in second language (L2) learning have been examined extensively in a number of SLA studies. One of the findings and claims made repeatedly is that attention as awareness at the level of noticing is a necessary condition for comprehensible input to be detected, selected, processed, and potentially and partially integrated within a learner’s internalized grammar – that is, to become intake (Gass, 1988, 2003; Leow, 1995, 1997, 2000, 2001, 2003; Robinson, 1995, 2003; Rosa & O’Neill, 1999; Schmidt, 1995, 2001; Swain, 1985, VanPatten, 1996). The purpose of this discussion is to briefly illustrate how findings from these studies and, specifically, concepts such as attention, noticing, and intake can help researchers and practitioners reconceptualize the processes involved in formative assessment at the planning and implementation stages.
Emotional triggers in myocardial infarction: do they matter?
Creators: name: Edmondson, Donald E.
name: Newman, Jonathan D.
name: Whang, William
name: Davidson, Karina W.
Publisher: name: Columbia University
Year: 2013
Subjects: Emotions--Health aspects
Myocardial infarction--Prevention
Myocardial infarction--Risk factors
Mental health
Medicine

description: Considerable excitement and interest have arisen recently concerning the role that acute emotional triggers may play in precipitating a myocardial infarction (MI). Observational studies have found repeatedly that patients report excessive anger, anxiety, sadness, grief, or acute stress immediately prior to onset of MI, and recent meta-analyses summarizing these findings reported strong associations between MI occurrence and many of these acute emotions. However, it is unclear whether and through what mechanisms acute emotional triggers might influence MI, and whether there is any clinical utility in knowing if or how emotions trigger MI. We debate whether emotional triggers matter by reviewing the recent evidence for the association between acute emotional triggers and MI and by describing the potential pathophysiological characteristics and mechanisms underlying this association and the preventive strategies that could be used to mitigate the risk of acute MI. We also examine whether the study of emotional triggers could influence clinical risk management or changes in clinical practice/management. We offer suggestions for research that might shed light on whether emotional triggers could initiate a paradigm shift in preventive cardiology, or whether acute emotional triggers are either intractable catalysts for, or merely an epiphenomenon of, some MIs.
Young stellar clusters in the Rosette molecular cloud. Arguments against triggered star formation
Creators: name: Cambrésy, L.
name: Marton, G.
name: Feher, O.
name: Tóth, L. V.
name: Schneider, N.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The Rosette complex is a well studied region of the galactic plane which presents the apparent characteristics of a triggered star forming region. This is however still debated as no strong evidence corroborates this statement. We focus on characterizing the young stellar population in the Rosette complex to improve our understanding of the processes that regulate the star formation in this region. We propose an original method that relies on the joint analysis of the star color and density in the near-infrared. It leads to mapping the molecular cloud spatial distribution and detecting the embedded clusters with their characterization in terms of member number and age estimation. We have identified 13 clusters, 2 of which are new discoveries, and we estimate that the total number of young stellar objects in the Rosette ranges between 4000 and 8000 members. We find that the age distribution of the young clusters is not consistent with a general triggered scenario for the star formation in this molecular cloud. This study proves that the Rosette complex evolution is not governed by the influence of its OB star population. It suggests that the simple morphological appearance of an active region is not sufficient to conclude much about the triggering role in the star formation process. Our method of constraining the cluster properties using UKIDSS and WISE data has proven efficient, and studies of other regions of the galactic plane would definitely benefit from this approach.
description: Accepted for publication in A&A. 11 pages, 10 figures. Language edited version
Shader optimization and specialization
Creators: name: Crawford, Lewis
Publisher: name: The University of Edinburgh
Year: 2022
Subjects: compiler optimization
graphics
shaders
GPU

description: In the field of real-time graphics for computer games, performance has a significant effect on the player’s enjoyment and immersion. Graphics processing units (GPUs) are hardware accelerators that run small parallelized shader programs to speed up computationally expensive rendering calculations. This thesis examines optimizing shader programs and explores ways in which data patterns on both the CPU and GPU can be analyzed to automatically speed up rendering in games. Initially, the effect of traditional compiler optimizations on shader source-code was explored. Techniques such as loop unrolling or arithmetic reassociation provided speed-ups on several devices, but different GPU hardware responded differently to each set of optimizations. Analyzing execution traces from numerous popular PC games revealed that much of the data passed from CPU-based API calls to GPU-based shaders is either unused, or remains constant. A system was developed to capture this constant data and fold it into the shaders’ source-code. Re-running the game’s rendering code using these specialized shader variants resulted in performance improvements in several commercial games without impacting their visual quality.
Diagnostic Second Language Assessment in the Classroom
Creators: name: Blood, Ian A.
Publisher: name: Columbia University
Year: 2011
Subjects: Diagnosis
Feedback (Psychology)
Second language acquisition--Ability testing
Education
English language--Study and teaching--Foreign speakers

description: The term diagnosis is familiar, and refers to the identification of disease or disorder in an individual. In the broadest sense, then, diagnostic second language (L2) assessment refers to any L2 assessment practice, whether in the form of a formal written test or informal teacher questioning, that yields diagnostic feedback—information on learner strengths and weaknesses. In low-stakes classroom contexts, where psychometric rigor is sacrificed for the attention and rich intuitions of teachers, informal diagnostic assessment occurs on a regular basis in the form of student questioning, explanation, and the provision of written feedback on quizzes, tests, and written work. Indeed, Huff and Goodman (2007) showed that K-12 science and language arts teachers highly value diagnostic feedback and prefer assessments which yield detailed information that can be used to identify the instructional needs of individual learners. Despite this apparent interest on the part of teachers in the diagnostic function of assessment, Alderson (2005, 2007) points out that diagnostic testing has been largely neglected in the L2 literature. Fundamental questions regarding the proper domain and application of diagnostic testing are unresolved: Must a diagnostic L2 test measure proficiency and be based on a theoretical model of L2 ability, or can diagnostic assessment be equally applied to achievement in a curriculum? Where does the boundary between formative assessment and diagnostic assessment lie? What kinds of feedback, and at what level of detail, are most beneficial to L2 learners?
Comment on "System-environment coupling derived by Maxwell's boundary conditions from the weak to the ultrastrong light-matter coupling regime"
Creators: name: De Liberato, Simone
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In a recent work [arXiv:1301.3960], Bamba and Ogawa developed a microscopic model describing the field of a photonic cavity coupled to a matter exciton-like resonance. One of the results they obtain studying such a model is that, in the ultrastrong coupling regime, usually safe approaches can give wrong results for the dissipation rates of the polaritonic excitations. In particular the dissipation rates calculated applying the rotating wave approximation on the system-environment coupling qualitatively differ from the ones calculated using a microscopic theory based on the quantum electrodynamics for dielectric media. Here I show that this result is an artifact, caused by an inconsistent application of the rotating wave approximation and by a questionable parameter choice.
description: Comment on: M. Bamba and T. Ogawa, Phys. Rev. A 88, 013814 (2013) [arXiv:1301.3960]
title: Vorschlag und Plan eines historischen Museums für Baiern und angränzende Gegenden; 1784
title: den Mitfreunden vaterländischer Aufklärung als Anfrage und Einladung
titleType: Subtitle
Creators: name: Drexl, Anton
name: Hoheneicher, Franz von Paula Ludwig
name: Nagel, Anton
Publisher: name: Universitätsbibliothek der Ludwig-Maximilians-Universität München
Year: 2012

description: Verf. ermittelt
title: Hydrologic Controls on Phosphorus Speciation and Mobilization in a Subalpine Watershed (East River, Colorado)
Creators: name: Arthen-Long, Lucia Isobel
Publisher: name: University of Massachusetts Amherst
Year: 2021

description: The cycling of phosphorus (P) through floodplain environments is critical to ecosystem productivity and has significant implications on both water quality and soil fertility. P export from soils in response to saturation has been well documented, but the relative vulnerability of specific P pools to mobilization remains poorly constrained, as do the mechanisms mediating its release. The prediction of P availability in and export from mountainous floodplain soils is of great importance as global climate change is projected to significantly alter precipitation regimes in alpine systems. This study combined a thorough characterization of P distribution across a hillslope to floodplain transect with a high resolution analysis of P response to saturation, providing insight into both P cycling and flood-induced mobilization in the East River watershed in Gothic, Colorado. P-XANES, 31P NMR, and sequential extractions revealed that P concentrations were greatest in the floodplain and dominated by inorganic P (Pi) bound to primary minerals, while hillslope P was lower and characterized by more bioavailable and organic (Po) pools. Time series analysis of P response to extended water saturation confirmed our hypothesis that P mobilization would occur in two phases, first driven by lysis of microbial cells upon initial rewetting, and later driven by the reductive dissolution of Fe oxides with extended saturation. These findings indicated that (i) the interaction of weathering and hydrology dictate P speciation across the transect; (ii) hillslope P may be concentrated in microbial pools while floodplain P is primarily bound by minerals; (iii) bioavailable P pools may be dominated by Po; and (iv) Po is more vulnerable to mobilization during initial rewetting of dried soils while Pi responds more to changes in redox potential during extended saturation. Results from this study underscore the significance of hydrology in determining P speciation and mobilization, indicating that long-term changes in precipitation may influence P bioavailability and export from alpine watersheds. Understanding the mechanisms by which P is mobilized is therefore of critical importance to better predict soil P response to saturation in a changing climate.
Classroom-based Language Assessment for Young Language Learners
Creators: name: Oh, Sae Rhim
Publisher: name: Columbia University
Year: 2011
Subjects: English language--Study and teaching (Elementary)--Foreign speakers
Bilingualism in children--Ability testing
Language and languages--Ability testing
Education
English language--Study and teaching--Foreign speakers

description: In many countries, the age at which children officially begin to learn a foreign language in a classroom has been lowered (e.g., from middle school to elementary school) due to the belief that the earlier they start to learn a language, the more successful they will be in language learning (McKay, 2006; Pinter, 2006). Marinova-Todd et al. (2000) argue that this belief is supported by studies that show that age influences learning because “it is associated with social, psychological, educational, and other factors that can affect L2 proficiency” (p.28). In addition, in an ESL situation, many immigrant children not only have to learn the content of the classes which is taught in their non-native language but also need to acquire that language as their second language.
OCTBEC - A Matlab toolbox for optimal quantum control of Bose-Einstein condensates
Creators: name: Hohenester, Ulrich
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: OCTBEC is a Matlab toolbox designed for optimal quantum control, within the framework of optimal control theory (OCT), of Bose-Einstein condensates (BEC). The systems we have in mind are ultracold atoms in confined geometries, where the dynamics takes place in one or two spatial dimensions, and the confinement potential can be controlled by some external parameters. Typical experimental realizations are atom chips, where the currents running through the wires produce magnetic fields that allow to trap and manipulate nearby atoms. The toolbox provides a variety of Matlab classes for simulations based on the Gross-Pitaevskii equation, the multi-configurational Hartree method for bosons, and on generic few-mode models, as well as optimization problems. These classes can be easily combined, which has the advantage that one can adapt the simulation programs flexibly for various applications.
description: toolbox available at http://physik.uni-graz.at/~uxh/octbec/octbec.html