cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Electronic structure and chemical bonding in Ti4SiC3 investigated by soft x-ray emission spectroscopy and first principle theory
Creators: name: Magnuson, M.
name: Mattesini, M.
name: Wilhelmsson, O.
name: Emmerlich, J.
name: Palmquist, J. -P.
name: Li, S.
name: Ahuja, R.
name: Hultman, L.
name: Eriksson, O.
name: Jansson, U.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: The electronic structure in the new transition metal carbide Ti4SiC3 has been investigated by bulk-sensitive soft x-ray emission spectroscopy and compared to the well-studied Ti3SiC2 and TiC systems. The measured high-resolution Ti L, C K and Si L x-ray emission spectra are discussed with ab initio calculations based on density-functional theory including core-to-valence dipole matrix elements. The detailed investigations of the Ti-C and Ti-Si chemical bonds provide increased understanding of the physical properties of these nanolaminates. A strongly modified spectral shape is detected for the buried Si monolayers due to Si 3p hybridization with the Ti 3d orbitals. As a result of relaxation of the crystal structure and the charge-transfer from Ti (and Si) to C, the strength of the Ti-C covalent bond is increased. The differences between the electronic and crystal structures of Ti4SiC3 and Ti3SiC2 are discussed in relation to the number of Si layers per Ti layer in the two systems and the corresponding change of materials properties.
description: 12 pages, 7 figures, 1 table
Did the NRCC Really Say Nancy Pelosi Should Be Put in Her Place?
Creators: name: Mitchell, Lincoln A.
Publisher: name: Columbia University
Year: 2009
Subjects: subject: Political science
subject: FOS: Political science

description: The specific language used by the NRCC in its latest statement reveals the contempt with which it holds not just Speaker Pelosi, but also some of the basic ideas on which our democracy rests.
Spectroscopic signature of Alfvén waves damping in a polar coronal hole up to 0.4 solar radii
Creators: name: Alessandro, Bemporad
name: Lucia, Abbo
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Between February 24-25, 2009, the EIS spectrometer onboard the Hinode spacecraft performed special "sit & stare" observations above the South polar coronal hole continuously over more than 22 hours. Spectra were acquired with the 1" slit placed off-limb covering altitudes up to 0.48 R$_\odot$ ($3.34\times 10^2$ Mm) above the Sun surface, in order to study with EIS the non-thermal spectral line broadenings. Spectral lines such as Fe {\sc xii} $λ$186.88, Fe {\sc xii} $λ$193.51, Fe {\sc xii} $λ$195.12 and Fe {\sc xiii} $λ$202.04 are observed with good statistics up to high altitudes and they have been analyzed in this study. Results show that the FWHM of Fe {\sc xii} $λ$195.12 line increases up to $\simeq 0.14$ R$_\odot$, then decreases higher up. EIS stray light has been estimated and removed. Derived electron density and non-thermal velocity profiles have been used to estimate the total energy flux transported by Alfvén waves off-limb in polar coronal hole up to $\simeq 0.4$ R$_\odot$. The computed Alfvén wave energy flux density $f_w$ progressively decays with altitude from $f_w \simeq 1.2 \cdot 10^6$ erg cm$^{-2}$ s$^{-1}$ at 0.03 R$_\odot$ down to $f_w \simeq 8.5 \cdot 10^3$ erg cm$^{-2}$ s$^{-1}$ at 0.4 R$_\odot$, with an average energy decay rate $Δf_w / Δh \simeq -4.5 \cdot 10^{-5}$ erg cm$^{-3}$ s$^{-1}$. Hence, this result suggests energy deposition by Alfvén waves in a polar coronal hole, thus providing a significant source for coronal heating.
description: Physical units of the Alfv\'en wave Energy Decay Rate $\Delta f_w / \Delta h$ revised with respect to the published version. Scientific results and conclusions unchanged
Performance Evaluation of LoRa LPWAN for the Internet of Things
Creators: name: Muhammad Yousuf, Asif
Publisher: name: Science
Year: 2019
Subjects: subject: Education--Sciences
subject: Education--Technology
subject: Computer Science

description: The goal of this thesis is to evaluate the performance of LoRa (Long Range), which is a leading Low-Power Wide-Area Network (LPWAN) technology for the Internet of Things (IoT). This work considers two scenarios: performance with indoor gateways and performance with outdoor gateways. Initially, this work studies the feasibility of building a low-cost IoT net- work, where the end devices and gateways are made of do-it-yourself (DIY) off-the-shelf hardware components. This work continues by analyzing the importance of understanding the capabilities and limitations of this technology in terms of its throughput, coverage, scalability and power consumption. Using real-world measurements with commercially-deployed devices from a city-wide LoRa deployment, this work aims to characterize the throughput and coverage of LoRa. Using a custom-built simulator, this work presents extensive simulation results, in order to characterize the scalability and power consumption analysis of LoRa under a variety of traffic and network settings. Our measurement results for the do-it-yourself (DIY) LoRa network (indoor gateways) setup shows that i) indoor coverage is sufficient to cover an entire seven-storey office building with minimal packet drop, ii) outdoor coverage is very dependent on the environment; in our experiments, a communication range of 4:4 km was achieved with only 15% packet drop, iii) network parameters such as spreading factor and packet size greatly affect the coverage; for example, we observed that a payload size of 242 bytes leads to 90% packet drop versus less than 5% drop with a payload size of 1 byte. Our measurement results with commercially-deployed gateways show that as few as three gateways are sufficient to cover a dense urban area within an approximately 15 km radius. Additionally, a single gateway can support as many as 10 [to the factor of 5] end devices, each sending 50 bytes of data every hour with negligible packet drops. On the negative side, while a throughput of up to 5:5 Kbps can be achieved over a single 125 KHz channel at the physical layer, the throughput achieved at the application layer is substantially lower, less than 1 Kbps, due to network protocols overhead.
Erfassung der psychischen Belastung im Rahmen nachgehender arbeitsmedizinischer Untersuchungen nach stattgehabter beruflicher Exposition gegenüber kanzerogenen Stoffen - Einflussmöglichkeiten durch eine Modifikation des Einladungsschreibens
Creators: name: Lorenz, Franziska
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 2016
Subjects: subject: 610

description: Es handelt sich um eine randomisierte klinische Studie an Probanden, welche im Rahmen ihrer früheren beruflichen Tätigkeit gegenüber potentiell kanzerogenen Stoffen exponiert waren. Untersucht werden sollte, inwiefern eine Teilnahme an der nachgehenden arbeitsmedizinischen Untersuchung zu einer psychischen Belastung führt und ob eine Veränderung der Einladungsmodalitäten eine etwaige psychische Belastung zu reduzieren vermag.Die Kontrollgruppe erhielt ein modifiziertes Einladungsschreiben, der Interventionsgruppe wurde das ursprüngliche Einladungsschreiben der Berufsgenossenschaften zugesandt. Die psychische Belastung (Ängstlichkeit) wurde per Fragebogen erfasst. Eine erhöhte situative Ängstlichkeit (State-Angst) war in der Studienpopulation nicht nachweisbar. Zwischen Kontroll- und Interventionsgruppe fanden sich keine signifikanten Unterschiede in der Ausprägung der Zustandsangst.
description: The given study is a randomised clinical trial. We examined people with a former occupational exposure to carcinogenic substances, who were invited to take part in the voluntary examination after being exposed to the substances.The aim of this study was to check, whether a participation in occupational medicine screenings is related to psychological distress and worries. The control group received a regular invitation letter for the screening, the other group received a modified invitation letter. There was no significant difference in state anxiety between the two groups. State anxiety within the study population was not raised in comparison to the reference population.
Weyl-Schouten Theorem for symmetric spaces
Creators: name: Nikolayevsky, Yuri
Publisher: name: arXiv
Year: 2011
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 53A30, 53C35, 53B20

description: Let N be a symmetric space of dimension n > 5 whose de Rham decomposition contains no factors of constant curvature and let W be the Weyl tensor of N at some point. We prove that a Riemannian manifold whose Weyl tensor at every point is a positive multiple of W is conformally equivalent to N (the case N = R^n is the Weyl-Schouten Theorem).
description: Changed some proofs; corrected typos
Investigating the Influence of Infant-Directed Speech on Attention and Visual Processing: An ERP and Gamma Activity Study
Creators: name: Marx, Milena
name: Peykarjou, Stefanie
Publisher: name: OSF Registries
Year: 2023
Subjects: subject: Psychiatry and Psychology
subject: Medicine and Health Sciences
subject: Life Sciences
subject: Neuroscience and Neurobiology
subject: Social and Behavioral Sciences
subject: Psychology
subject: FOS: Psychology

description: Template-based RR “snapshot” to be reviewed by a PCI RR recommender.
title: Anwendungsbezogenes Prozeßmodell der Wandlung elektrischer Energie in Energie des Leistungsschallimpulses
title: Application-oriented process model of the conversion of electrical energy in energy of the shock wave
titleType: AlternativeTitle
Creators: name: Zange, Rainer M.
Publisher: name: Universitätsbibliothek
Year: 2000
Subjects: Elektronische Publikation
Hochschulschrift
Online-Publikation

description: Gegenstand der Arbeit ist die Beschreibung der Wandlung elektrischer Energie in mechanische Energie von Leistungsschallimpulsen. Entsprechend der Energiewandelkette gliedern sich die Untersuchungen in - Umsatz der Energie in der Unterwasserfunkenstrecke, - Zusammenhang zwischen Leistungs- und Druckzeitverlauf, - Schalleinkopplung in das Zerkleinerungsgut und - Zerkleinerung von mineralischen Werkstoffen am Beispiel Beton und Verbundglas. Bei den Untersuchungen zum Energieumsatz in der Unterwasserfunkenstrecke werden zur Beschreibung der Energieumwandlung notwendige ausgewählte Abhängigkeiten von Parametern in den einzelnen Phasen der Entladung betrachtet. Zwischen dem Leistungszeitverlauf an der Unterwasserfunkenstrecke und einem piezoelektrisch gemessenen Druckzeitverlauf wird ein Zusammenhang ermittelt. Dazu sind zunächst der Versuchsaufbau und die Druckmessaufnehmer hinsichtlich des Signalantwortverhaltens zu analysieren. In den gemessenen Leistungs- und Druckzeitverläufen werden im Ergebnis geeignete Bewertungsparameter definiert. Die Wahl hinreichend anlagenunabhängiger Bezugsgrößen ermöglicht einen Vergleich der Ergebnisse bei verschiedenen Entladungsverläufen. Mit Hilfe eines linearen eindimensionalen Modellansatzes, bei dem das senkrechte Auftreffen ebener Wellen auf ebene Schichten betrachtet wird, werden Vorgänge beim Schalldurchgang durch querhomogene Stoffe und Stoffschichtungen untersucht. Das Schallleitungsmodell bietet die Möglichkeit der Betrachtungen von Belastungen in Stoffen und insbesondere an Grenzflächen in Verbundwerkstoffen beim Schalldurchgang. Eine weitgehend normierte Darstellung der Ergebnisse des Schallleitungsmodells erlaubt eine Übertragbarkeit der Ergebnisse auf andere Materialien und Abmessungen (Korngrößen, Schichtdicke). Man erhält mit dem Schallleitungsmodell Aussagen zur Einstellung der Impulsbreite und -amplitude für unterschiedliche Materialpaarungen. Mit dem vorgestellten Berechnungsweg zur anwendungsbezogenen Dimensionierung eines Entladekreises werden mit Hilfe von experimentell gefundenen Abhängigkeiten gezielt Entladekreisparameter berechnet. Eingangsgrößen für die Berechnung sind anlagenunabhängige Bezugsgrößen, mit denen die Abhängigkeiten zwischen Leistungs- und Druckzeitverlauf dargestellt wurden. Die Dimensionierung erfolgt leistungsorientiert. Mit Hilfe des in der Hochspannungstechnik genutzten Homogenitätsgrades erfolgt für vorgegebene Elektrodengeometrien die Überprüfung der Zündsicherheit. Zur Untersuchung der Zerkleinerungs- und Trennwirkung der Leistungsschallimpulse sowie zur Überprüfung der Ergebnisse aus den vorangegangenen theoretischen Untersuchungen werden Zerkleinerungsversuche am Werkstoff Beton und Verbundglas durchgeführt.
Multi-stream speech recognition: Ready for prime time?
Creators: name: Janin, Adam
name: Ellis, Daniel P. W.
name: Morgan, Nelson
Publisher: name: Columbia University
Year: 1999
Subjects: Electrical engineering
Artificial intelligence

description: Multi-stream and multi-band methods can improve the accuracy of speech recognition systems without overly increasing the complexity. However, they cannot be applied blindly. In this paper, we review our experience applying multi-stream and multiband methods to the Broadcast News corpus. We found that multi-stream systems using different acoustic front-ends provide a significant improvement over single stream systems. However, despite the fact that they have been successful on smaller tasks, we have not yet been able to show any gain using multi-band methods. We report various insights gained from the experience in applying these methods in a large-vocabulary task.
Towards an ecosystemic approach to culture and sustainability
Creators: name: Pekkarinen, Jenni
Publisher: name: Taylor & Francis
Year: 2025
Subjects: subject: Environmental Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Science Policy
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Virology

description: In the past decades, international cultural policy and academic discussions have aimed to link culture to sustainability debates, but as many scholars have noted, concrete policy implications have remained slim. As another emerging trend, the metaphor of ecosystem has been increasingly used in research and policy to approach the reality of cultural activity in a more inclusive way. Although discussions of cultural sustainability and cultural ecosystems have coexisted for some time, they have so far not been systematically connected. This paper aims to fill this gap by studying how cultural ecosystems and sustainability have been discussed separately and together in previous research and by suggesting an ecosystemic approach as a possible solution to the acknowledged lack of clarity in policy and theoretical approaches to cultural sustainability. Through a systematic literature review, the study identifies four standpoints on cultural ecosystems and sustainability and proposes an ecosystemic framework for cultural sustainability analysis.
The ICSI Meeting Corpus
Creators: name: Janin, Adam
name: Baron, Don
name: Edwards, Jane
name: Ellis, Daniel P. W.
name: Gelbart, David
name: Morgan, Nelson
name: Peskin, Barbara
name: Pfau, Thilo
name: Shriberg, Elizabeth
name: Stolcke, Andreas
name: Wooters, Chuck
Publisher: name: Columbia University
Year: 2003
Subjects: Communication of technical information
Artificial intelligence

description: We have collected a corpus of data from natural meetings that occurred at the International Computer Science Institute (ICSI) in Berkeley, California over the last three years. The corpus contains audio recorded simultaneously from head-worn and table-top microphones, word-level transcripts of meetings, and various metadata on participants, meetings, and hardware. Such a corpus supports work in automatic speech recognition, noise robustness, dialog modeling, prosody, rich transcription, information retrieval, and more. We present details on the contents of the corpus, as well as rationales for the decisions that led to its configuration. The corpus were delivered to the Linguistic Data Consortium (LDC).
A Theoretical Evaluation of Fee Systems for Private Grazing on Federal Lands
Creators: name: Brokken, Ray F.
name: McCarl, Bruce A.
name: Brokken, Ray F.
name: McCarl, Bruce A.
Publisher: name: Unknown
Year: 1987
Subjects: subject: Agricultural and Food Policy
subject: Land Economics/Use
subject: Livestock Production/Industries
subject: Research Methods/ Statistical Methods
subject: Public grazing fees
subject: public grazing land
subject: Federal lands
subject: Forage fees
subject: fee system
subject: livestock grazing

description: The Bureau of Land Management and the Forest Service control for regular lease many acres suitable for livestock production. This report uses a theoretical economic framework to review the allocation and pricing of Federal range forage. The authors evaluated fee system alternatives and determined that no system simultaneously satisfied all economic criteria. Maintenance of the current system, a switch to competitive bidding, or an administrative cost-based fee seemed to be the best options.
Organizational Rules and the Features of Work Careers
Creators: name: Spilerman, Seymour
Publisher: name: Columbia University
Year: 1986
Subjects: subject: Sociology
subject: FOS: Sociology
subject: Labor economics
subject: Organizational behavior

description: Although the features of individual careers are influenced by the personnel administrative rules of work organizations, the rules themselves rarely have been examined. Rather, one generally attempts to infer the nature of the attainment process by investigating the results of the process, as seen in the salary and status trajectories of a population sample, and by relating this to individual background characteristics. In this paper, in contrast, we directly examine organizational rules. We investigate administrative specifications with respect to salary advancement and promotion in a variety of work settings; in particular, in police departments, public school systems, the construction industry, and several private-sector organizations. The sources of the organizational rules are union contracts and company data about their human resource systems. Based on this material we introduce the concepts of simple structure, unitary structure, and amalgam structure to summarize the alternate formulations of career evolution that appear in the administrative rules. Finally, we discuss the extent to which the administrative prescriptions actually constrain the attainments of individual employees.
Nonequilibrium perturbation theory in Liouville-Fock space for inelastic electron transport
Creators: name: Dzhioev, Alan A.
name: Kosov, D. S.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We use a superoperator representation of the quantum kinetic equation to develop nonequilibrium perturbation theory for an inelastic electron current through a quantum dot. We derive a Lindblad-type kinetic equation for an embedded quantum dot (i.e. a quantum dot connected to Lindblad dissipators through a buffer zone). The kinetic equation is converted to non-Hermitian field theory in Liouville-Fock space. The general nonequilibrium many-body perturbation theory is developed and applied to the quantum dot with electron-vibronic and electron-electron interactions. Our perturbation theory becomes equivalent to a Keldysh nonequilibrium Green's function perturbative treatment provided that the buffer zone is large enough to alleviate the problems associated with approximations of the Lindblad kinetic equation.
description: 22 pages, 5 figures
The development and characterization of nanocomposite films for the controlled release and localized delivery of tetracycline and alendronate for periodontal application
Creators: name: Chakraborti, Michelle
Publisher: name: University of British Columbia
Year: 2011

description: It has been proposed that localized and controlled delivery of alendronate and tetracycline to periodontal pocket fluids via guided tissue regeneration (GTR) membranes may be a valuable adjunctive treatment for advanced periodontitis. The objectives of this work were to develop a co-loaded, controlled release tetracycline and alendronate nanocomposite plasticized poly(lactic-co-glycolic acid) (PLGA) film that would form a suitable matrix supporting osteoblast proliferation and differentiation. Alendronate release was successfully controlled, with complete suppression of the burst phase of release by intercalation of alendronate anions in magnesium/aluminum layered double hydroxide (LDH) clay nanoparticles and dispersed in the PLGA film matrix. Tetracycline, loaded as free drug into the film together with alendronate-LDH clay complex released more rapidly than alendronate, but showed evidence of intercalation in the LDH clay particles. The dual drug loaded nanocomposite films were biocompatible with osteoblasts and after five week incubations, significant increase in alkaline phosphatase activity and bone nodule formation were observed.
Hysteresis and stepwise structure in MR curves of granular superconducting ruthenocuprates RuSr$_2$(Gd$_{1.5}$Ce$_{0.5})$Cu$_2$O$_{10-δ}$}
Creators: name: Belevtsev, B. I.
name: Beliayev, E. Yu.
name: Naugle, D. G.
name: Rathnayaka, K. D. D.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Granular superconductivity effects in a polycrystalline sample of ruthenocuprate RuSr$_2$(Gd$_{1.5}$Ce$_{0.5})$Cu$_2$O$_{10-δ}$ are studied. The main attention has been devoted to manifestation of these effects in current and magnetic-field dependences of resistive transition to superconducting state. It is found that current dependences of differential resistance taken at different temperatures intersect strictly at two definite values of current demonstrating crossing point effect. This phenomenon has been explained taking into account inhomogeneous state of intergrain medium which can be considered as a two-component system. The particular attention has been given to magnetoresistance (MR) hysteresis in mixed state of this inhomogeneous system and to influence of applied current and temperature on this phenomenon. Two types of hysteresis (clockwise and anticlockwise) have been found with transition from clockwise to anticlockwise hysteresis with increasing temperature. Stepwise structure in MR hysteretic curves has been observed in low-field range. Possible reasons of the change in hysteresis behavior with increasing temperature and appearance of the stepwise structure in MR curves are discussed taking into consideration inhomogeneous state of the granular superconductor studied.
description: 31 pages, 13 figures
A Tempo-Insensitive Distance Measure for Cover Song Identification based on Chroma Features
Creators: name: Jensen, Jesper Hojvang
name: Christensen, Mads G.
name: Ellis, Daniel P. W.
name: Jensen, Soren Holdt
Publisher: name: Columbia University
Year: 2008
Subjects: subject: Electrical engineering
subject: Mathematics
subject: FOS: Mathematics

description: We present a distance measure between audio files designed to identify cover songs, which are new renditions of previously recorded songs. For each song we compute the chromagram, remove phase information and apply exponentially distributed bands in order to obtain a feature matrix that compactly describes a song and is insensitive to changes in instrumentation, tempo and time shifts. As distance between two songs, we use the Frobenius norm of the difference between their feature matrices normalized to unit norm. When computing the distance, we take possible transpositions into account. In a test collection of 80 songs with two versions of each, 38% of the covers were identified. The system was also evaluated on an independent, international evaluation where it despite having much lower complexity performed on par with the winner of last year.
An alternative approach to efficient simulation of micro/nanoscale phonon transport
Creators: name: Peraud, Jean-Philippe
name: Hadjiconstantinou, Nicolas
Publisher: name: arXiv
Year: 2012
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Starting from the recently proposed energy-based deviational formulation for solving the Boltzmann equation [J.-P. Peraud and N. G. Hadjiconstantinou, Phys. Rev. B 84, 2011], which provides significant computational speedup compared to standard Monte Carlo methods for small deviations from equilibrium, we show that additional computational benefits are possible in the limit that the governing equation can be linearized. The proposed method exploits the observation that under linearized conditions (small temperature differences) the trajectories of individual deviational particles can be decoupled and thus simulated independently; this leads to a particularly simple and efficient algorithm for simulating steady and transient problems in arbitrary three-dimensional geometries, without introducing any additional approximation.
description: 4 pages, 2 figures
Whole genome sequencing of the rice plants with designed SVs
Creators: name: 孙帅(Shuai Sun)
Publisher: name: CNGB
Year: 2021
Subjects: Raw sequence reads
Monoisolate
Agricultural

description: Short read sequencing data of the rice plants with designed SVs, including three WT plants and three transgene-free T1 plants harboring homozygous inversion or duplication alleles identified by PCR.
Global circadian transcript profile of mouse stomach entrained by inverted feeding
Creators: name: 旻典 李(Min-Dian Li)
Publisher: name: CNGB
Year: 2021
Subjects: Raw sequence reads
Monoisolate
Model organism

description: Circadian clocks in peripheral organs are entrained by feeding. Eating in the right time is crucial to maintain metabolic health, whereas eating in the wrong time increases the susceptibility to metabolic diseases. It is unknown how change of mealtime impacts circadian transcriptomes in peripheral organs and brain. Here, we presented global circadian transcript profile of mouse stomach entrained by inverted feeding to compile an atlas for mechanistic insights into how feed-fast cycle regulates circadian biology. Wildtype and Per1/Per2 deficient mouse stomach tissues were used for profiling.
Time Evolution of Electric Fields in CDMS Detectors
Creators: name: Leman, S. W.
name: Brandt, D.
name: Brink, P. L.
name: Cabrera, B.
name: Chagani, H.
name: Cherry, M.
name: Cushman, P.
name: Silva, E. Do Couto E
name: Doughty, T.
name: Figueroa-Feliciano, E.
name: Mandic, V.
name: McCarthy, K. A.
name: Mirabolfathi, N.
name: Pyle, M.
name: Reisetter, A.
name: Resch, R.
name: Sadoulet, B.
name: Serfass, B.
name: Sundqvist, K. M.
name: Tomada, A.
name: Young, B. A.
name: Zhang, J.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Materials Science (cond-mat.mtrl-sci)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The Cryogenic Dark Matter Search (CDMS) utilizes large mass, 3" diameter x 1" thick target masses as particle detectors. The target is instrumented with both phonon and ionization sensors, the later providing a $\sim$1 V cm$^{-1}$ electric field in the detector bulk. Cumulative radiation exposure which creates $\sim 200\times 10^6$ electron-hole pairs is sufficient to produce a comparable reverse field in the detector thereby degrading the ionization channel performance. To study this, the existing CDMS detector Monte Carlo has been modified to allow for an event by event evolution of the bulk electric field, in three spatial dimensions. Our most resent results and interpretation are discussed.
description: Low Temperature Detectors 14 conference proceeding to be published in the Journal of Low Temperature Physics
Translating evidence to patient care through caregivers: a systematic review of caregiver-mediated interventions
Creators: name: Fiest, Kirsten M.
name: McIntosh, Christiane Job
name: Demiantschuk, Danielle
name: Leigh, Jeanna Parsons
name: Stelfox, Henry T.
Publisher: name: BMC
Year: 2018
Subjects: Systematic review
Caregiver-mediated
Quality improvement
Knowledge translation
Implementation science
Intervention
Review
Translational medical research

description: Background: Caregivers may promote the uptake of science into patient care and the practice of evidence-informed medicine. The purpose of this study was to determine whether caregiver-mediated (non-clinical caregiver-delivered) interventions are effective in improving patient, caregiver, provider, or health system outcomes. Methods: We searched the MEDLINE, Embase, PsycINFO, Cumulative Index of Nursing and Allied Health, and Scopus databases from inception to February 27, 2017. Interventions (with a comparison group) reporting on a quality improvement intervention mediated by a caregiver and directed to a patient, in all ages and patient-care settings, were selected for inclusion. A three-category framework was developed to characterize caregiver-mediated interventions: inform (e.g., provide knowledge), activate (e.g., prompt action), and collaborate (e.g., lead to interaction between caregivers and other groups [e.g., care providers]). Results: Fifty-six studies met the inclusion criteria, and 64% were randomized controlled trials (RCTs). The most commonly assessed outcomes were patient-(n = 40) and caregiver-oriented (n = 33); few health system-(n = 10) and provider-oriented (n = 2) outcomes were reported. Patient outcomes (e.g., satisfaction) were most improved by caregiver-mediated interventions that provided condition and treatment education (e.g., symptom management information) and practical condition-management support (e.g., practicing medication protocol). Caregiver outcomes (e.g., stressrelated/psychiatric outcomes) were most improved by interventions that activated caregiver roles (e.g., monitoring blood glucose) and provided information related to that action (e.g., why and how to monitor). The risk of bias was generally high, and the overall quality of the evidence was low-moderate, based on Grading of Recommendations Assessment Development and Evaluation ratings. Conclusions: There is a large body of research, including many RCTs, to support the use of caregiver-mediated interventions that inform and activate caregivers to improve patient and caregiver outcomes. Select caregiver-mediated interventions improve patient (inform-activate) and caregiver (inform-activate-collaborate) outcomes and should be considered by all researchers implementing patient-and family-oriented research.
An Adversarial Evaluation of Network Signaling and Control Mechanisms
Creators: name: Jee, Kangkook
name: Sidiroglou, Stelios
name: Stavrou, Angelos
name: Keromytis, Angelos D.
Publisher: name: Columbia University
Year: 2010
Subjects: Computer science

description: Network signaling and control mechanisms are critical to coordinate such diverse defense capabilities as honeypots and honeynets, host-based defenses, and online patching systems, any one of which might issue an actionable alert and provide security-critical data. Despite considerable work in exploring the trust requirements of such defenses and in addressing the distribution speed of alerts, little work has gone into identifying how the underlying transport systems behave under adversarial scenarios. In this paper, we evaluate the reliability and performance trade-offs for a variety of control channel mechanisms that are suitable for coordinating large-scale collaborative defenses when under attack. Our results show that the performance and reliability characteristics change drastically when one evaluates the systems under attack by a sophisticated and targeted adversary. Based on our evaluation, we explore available design choices to reinforce the reliability of the control channel mechanisms. To that end, we propose ways to construct a control scheme to improve network coverage without imposing additional overhead.
The Prevalence and Incidence of Dementia Due to Alzheimer's Disease: a Systematic Review and Meta-Analysis
Creators: name: Fiest, Kirsten M.
name: Roberts, Jodie I.
name: Maxwell, Colleen J.
name: Hogan, David B.
name: Smith, Eric E.
name: Frolkis, Alexandra
name: Cohen, Adrienne
name: Kirk, Andrew
name: Pearson, Dawn
name: Pringsheim, Tamara
name: Venegas-Torres, Andres
name: Jette, Nathalie
Publisher: name: CAMBRIDGE UNIV PRESS
Year: 2016
Subjects: Alzheimer's
dementia
meta-analysis
systematic review

description: Background: Updated information on the epidemiology of dementia due to Alzheimer's disease (AD) is needed to ensure that adequate resources are available to meet current and future healthcare needs. We conducted a systematic review and meta-analysis of the incidence and prevalence of AD. Methods: The MEDLINE and EMBASE databases were searched from 1985 to 2012, as well as the reference lists of selected articles. Included articles had to provide an original population-based estimate for the incidence and/or prevalence of AD. Two individuals independently performed abstract and full-text reviews, data extraction and quality assessments. Random-effects models were employed to generate pooled estimates stratified by age, sex, diagnostic criteria, location (i.e., continent) and time (i.e., when the study was done). Results: Of 16,066 abstracts screened, 707 articles were selected for full-text review. A total of 119 studies met the inclusion criteria. In community settings, the overall point prevalence of dementia due to AD among individuals 60 + was 40.2 per 1000 persons (CI95%: 29.1-55.6), and pooled annual period prevalence was 30.4 per 1000 persons (CI95%: 15.6-59.1). In community settings, the overall pooled annual incidence proportion of dementia due to AD among individuals 60 + was 34.1 per 1000 persons (CI95%: 16.4-70.9), and the incidence rate was 15.8 per 1000 person-years (CI95%: 12.9-19.4). Estimates varied significantly with age, diagnostic criteria used and location (i.e., continent). Conclusions: The burden of AD dementia is substantial. Significant gaps in our understanding of its epidemiology were identified, even in a high-income country such as Canada. Future studies should assess the impact of using such newer clinical diagnostic criteria for AD dementia such as those of the National Institute on Aging-Alzheimer's Association and/or incorporate validated biomarkers to confirm the presence of Alzheimer pathology to produce more precise estimates of the global burden of AD.
A wide distribution of phototrophic bacteria in hydrothermal vent on the ultraslow-spreading Southwest Indian Ridge
Creators: name: 李登辉(Davidli)
Publisher: name: CNGB
Year: 2021
Subjects: Genome sequencing
Other
mitochondrion
Monoisolate

description: To answer the question how geographically and taxonomically widespread are phototrophs in the deep-sea hydrothermal vents we collected samples from three niches in a hydrothermal vent on the Southwest Indian Ridge and carried out an integrated metagenomic analysis. We observed typical communitity structure of microorganisms found in active venting fileds, and identified populations of known potential chorophototrophs and retinalophototrophs.
Random Sequential Renormalization and Agglomerative Percolation in Networks: Application to Erd"os-R'enyi and Scale-free Graphs
Creators: name: Bizhani, Golnoosh
name: Grassberger, Peter
name: Paczuski, Maya
Publisher: name: arXiv
Year: 2011
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Social and Information Networks (cs.SI)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: We study the statistical behavior under random sequential renormalization(RSR) of several network models including Erd"os R'enyi (ER) graphs, scale-free networks and an annealed model (AM) related to ER graphs. In RSR the network is locally coarse grained by choosing at each renormalization step a node at random and joining it to all its neighbors. Compared to previous (quasi-)parallel renormalization methods [C.Song et.al], RSR allows a more fine-grained analysis of the renormalization group (RG) flow, and unravels new features, that were not discussed in the previous analyses. In particular we find that all networks exhibit a second order transition in their RG flow. This phase transition is associated with the emergence of a giant hub and can be viewed as a new variant of percolation, called agglomerative percolation. We claim that this transition exists also in previous graph renormalization schemes and explains some of the scaling laws seen there. For critical trees it happens as N/N0 -> 0 in the limit of large systems (where N0 is the initial size of the graph and N its size at a given RSR step). In contrast, it happens at finite N/N0 in sparse ER graphs and in the annealed model, while it happens for N/N0 -> 1 on scale-free networks. Critical exponents seem to depend on the type of the graph but not on the average degree and obey usual scaling relations for percolation phenomena. For the annealed model they agree with the exponents obtained from a mean-field theory. At late times, the networks exhibit a star-like structure in agreement with the results of Radicchi et. al. While degree distributions are of main interest when regarding the scheme as network renormalization, mass distributions (which are more relevant when considering 'supernodes' as clusters) are much easier to study using the fast Newman-Ziff algorithm for percolation, allowing us to obtain very high statistics.
Integrating Sensory Data for Object Recognition Tasks
Creators: name: Allen, Peter K.
name: Bajcsy, Ruzena
Publisher: name: Columbia University
Year: 1986
Subjects: Artificial intelligence

description: Object recognition is a difficult task for single sensor systems (e.g. machine vision) in unconstrained environments. A useful approach is to combine sensory data from more than one source to overcome these problems. However, using multiple sensors poses new problems with respect to coordination of the sensors, strategies for their use and integration of their data. In this paper, these problems are explored and solutions posed for the task of object recognition using passive stereo vision and active tactile sensing.
Resummation scheme for 3d Yang-Mills and the two-loop magnetic mass for hot gauge theories
Creators: name: Bieletzki, D.
name: Lessmeier, K.
name: Philipsen, O.
name: Schroder, Y.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Perturbation theory for non-Abelian gauge theories at finite temperature is plagued by infrared divergences caused by magnetic soft modes $\sim g^2T$, which correspond to the fields of a 3d Yang-Mills theory. We revisit a gauge invariant resummation scheme to solve this problem by self-consistent mass generation using an auxiliary scalar field, improving over previous attempts in two respects. First, we generalise earlier SU(2) treatments to SU(N). Second, we obtain a gauge independent two-loop gap equation, correcting an error in the literature. The resulting two-loop approximation to the magnetic mass represents a $\sim 15%$ correction to the leading one-loop value, indicating a reasonable convergence of the resummation.
description: 16 pages, 3 figures
What Olympia Snowe's Support Could Mean
Creators: name: Mitchell, Lincoln A.
Publisher: name: Columbia University
Year: 2009
Subjects: subject: Political science
subject: FOS: Political science

description: By supporting a moderate bill in committee, Snowe has made the GOP, or at least part of it, relevant again; succeeding where Michael Steele, John Boehner, Joe Wilson, Rush Limbaugh and others have failed.
A Processor Extension for Cycle-Accurate Real-Time Software
Creators: name: Ip, Nicholas Jun Hao
name: Edwards, Stephen A.
Publisher: name: Columbia University
Year: 2006
Subjects: Computer science

description: Certain hard real-time tasks demand precise timing of events, but the usual software solution of periodic interrupts driving a scheduler only provides precision in the millisecond range. NOP-insertion can provide higher precision, but is tedious to do manually, requires predictable instruction timing, and works best with simple algorithms.  To achieve high-precision timing in software, we propose instruction-level access to cycle-accurate timers. We add an instruction that waits for a timer to expire then reloads it synchronously. Among other things, this provides a way to exactly specify the period of a loop. To validate our approach, we implemented a simple RISC processor with our extension on an FPGA and programmed it to behave like a video controller and an asynchronous serial receiver. Both applications were much easier to write and debug than their hardware counterparts, which took roughly four times as many lines in VHDL. Simple processors with our extension brings software-style development to a class of applications that were once only possible with hardware.
Short-term audio-visual atoms for generic video concept classification
Creators: name: Jiang, Wei
name: Cotton, Courtenay Valentine
name: Chang, Shih-Fu
name: Ellis, Daniel P. W.
name: Loui, Alexander C.
Publisher: name: Columbia University
Year: 2009
Subjects: subject: Electrical engineering
subject: Mathematics
subject: FOS: Mathematics

description: We investigate the challenging issue of joint audio-visual analysis of generic videos targeting at semantic concept detection. We propose to extract a novel representation, the Short-term Audio-Visual Atom (S-AVA), for improved concept detection. An S-AVA is defined as a short-term region track associated with regional visual features and background audio features. An effective algorithm, named Short-Term Region tracking with joint Point Tracking and Region Segmentation (STR-PTRS), is developed to extract S-AVAs from generic videos under challenging conditions such as uneven lighting, clutter, occlusions, and complicated motions of both objects and camera. Discriminative audio-visual codebooks are constructed on top of S-AVAs using Multiple Instance Learning. Codebook-based features are generated for semantic concept detection. We extensively evaluate our algorithm over Kodak's consumer benchmark video set from real users. Experimental results confirm significant performance improvements - over 120% MAP gain compared to alternative approaches using static region segmentation without temporal tracking. The joint audio-visual features also outperform visual features alone by an average of 8.5% (in terms of AP) over 21 concepts, with many concepts achieving more than 20%.
Prospects for constraining the shape of non-Gaussianity with the scale-dependent bias
Creators: name: Noreña, Jorge
name: Verde, Licia
name: Barenboim, Gabriela
name: Bosch, Cristian
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We consider whether the non-Gaussian scale-dependent halo bias can be used not only to constrain the local form of non-Gaussianity but also to distinguish among different shapes. In particular, we ask whether it can constrain the behavior of the primordial three-point function in the squeezed limit where one of the momenta is much smaller than the other two. This is potentially interesting since the observation of a three-point function with a squeezed limit that does not go like the local nor equilateral templates would be a signal of non-trivial dynamics during inflation. To this end we use the quasi-single field inflation model of Chen and Wang as a representative two-parameter model, where one parameter governs the amplitude of non-Gaussianity and the other the shape. We also perform a model-independent analysis by parametrizing the scale-dependent bias as a power-law on large scales, where the power is to be constrained from observations. We find that proposed large-scale structure surveys (with characteristics similar to the dark energy task force stage IV surveys) have the potential to distinguish among the squeezed limit behavior of different bispectrum shapes for a wide range of fiducial model parameters. Thus the halo bias can help discriminate between different models of inflation.
description: 12 pages, 3 figures, v2. minor corrections to the text, matches JCAP published version
Cartilla de Explorador/a para Bahía de La Herradura
Creators: name: Surgencia ONG
Publisher: name: Zenodo
Year: 2018
Subjects: Exploración
Bahía de La Herradura
Coquimbo
Amenazas
Usuarios

description: Guía didáctica realizada en el marco de colaboración con la organización "Guayacán te Mueve". La guía fue desarrollada como material complementario para registrar e identificar los ambientes, usuarios y amenazas presentes en la Bahía de la Herradura. Fue aplicada con Niñas, Niños y Adolescentes de la organización, quienes participaron de un recorrido guiado desde el mirador de "Los Navegantes", pasando por el intermareal rocoso en el Muelle de la Universidad Católica del Norte, finalizando en las Dunas de La Herradura.
DEP Bulletin:Volume 37 Issue 11
Creators: name: No Name Supplied
Publisher: name: No Publisher Supplied
Year: 2013

description: The DEP bulletin is a semi-monthly publication of the New Jersey Department of Environmental Protection. It contains a list of construction permit applications recently filed or acted upon by the Department along with a calendar of events of interest, a schedule of public hearings, and Environmental Impact Statements acted upon during the period.
Nanoscale inhomogeneities: A new path toward high Curie temperature ferromagnetism in diluted materials
Creators: name: Chakraborty, Akash
name: Bouzerar, Richard
name: Kettemann, Stefan
name: Bouzerar, Georges
Publisher: name: arXiv
Year: 2011
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: Room temperature ferromagnetism has been one of the most sought after topics in today's emerging field of spintronics. It is strongly believed that defect- and inhomogeneity- free sample growth should be the optimal route for achieving room-temperature ferromagnetism and huge efforts are made in order to grow samples as "clean" as possible. However, until now, in the dilute regime it has been difficult to obtain Curie temperatures larger than that measured in well annealed samples of (Ga,Mn)As ($\sim$190 K for 12% doping). In the present work, we propose an innovative path to room-temperature ferromagnetism in diluted magnetic semiconductors. We theoretically show that even a very small concentration of nanoscale inhomogeneities can lead to a tremendous boost of the critical temperatures: up to a 1600% increase compared to the homogeneous case. In addition to a very detailed analysis, we also give a plausible explanation for the wide variation of the critical temperatures observed in (Ga,Mn)N and provide a better understanding of the likely origin of very high Curie temperatures measured occasionally in some cases. The colossal increase of the ordering temperatures by nanoscale cluster inclusions should open up a new direction toward the synthesis of materials relevant for spintronic functionalities.
description: 16 pages, 4 figures, New references added and Text revised to match the accepted version