cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Comparative clinico-haematological analysis in young Zebu cattle experimentally infected with Trypanosoma vivax isolates from tsetse infested and non-tsetse infested areas of Northwest Ethiopia
Creators: name: Shimelis D Nigatu (Dagne2121@Gmail.Com) Melkamu Bezie (Mbeziethevet@Gmail.Com) Getachew Terefe (Getachew_terefe@Yahoo.Com) Getachew Abebe (Getachew.Abebe@Fao.Org) J. David Barry (Dave.Barry@Glasgow.Ac.Uk) Bruno M Goddeeris (Bruno.Goddeeris@Kuleuven.Be)
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2015

description: No abstract available for this resource
Control of mobile manipulation with networked sensing
Creators: name: Lang, Haoxiang
Publisher: name: University of British Columbia
Year: 2012

description: This thesis addresses the manipulation control of a mobile robot with the support of a sensor network, for carrying out dynamically challenging tasks. Such tasks are defined as those where the robot is required to first identify objects, approach and grasp the needed objects, and transport them to goal locations in an environment that is dynamic, unstructured and only partially known. In the present work, a robotic system with these capabilities is developed and implemented for use in tasks of search and rescue, and homecare robotics. To this end, this thesis makes significant original contributions in developing a scheme of adaptive nonlinear model predictive control (ANMPC) and a sensor network with dynamic clustering capability for mobile manipulation under challenging conditions. Two object tracking algorithms for color tracking and feature tracking are developed for object identification and tracking. A system that uses Q-learning is developed for mobile robot navigation, which allows the robot to learn and operate in an unknown and unstructured dynamic environment. A traditional approach of image-based visual servo control is developed and demonstrated. The scheme of ANMPC is developed, which incorporates a multi-input multi-output (MIMO) control system that can accommodate constraints, including environmental constraints and physical constraints of the robots. In implementing ANPC scheme, the nonlinear and time-variant model is linearized on line with respect to the current position of the image feature and robot joints, using an adaptive approach. The corresponding control architecture predicts the system outputs and generates optimized control actions according to a cost function. In order to extend the mobile manipulation system to a wider workspace such as that found in cities and home scenarios, a sensor network is designed and developed employing PFSA (Probabilistic Finite State Automata). The developed PFSA is utilized in both modeling the sensor data and organizing and representing the sensor network. An application of object identification and tracking is presented; and a heterogeneous sensor network is developed along with a simulation platform in MATLAB. A self-organized and clustered sensor network, which is based on PFSA, is demonstrated. In conclusion, directions for further research and development are indicated.
Supplementary Information for Fringing-Reef Facies Analysis and Dating Method from Meltwater pulse 1a drowned fringing-reefs around Tahiti 15 000 years ago
Creators: name: Blanchon, Paul
name: Chutcharavan, Peter
Publisher: name: The Royal Society
Year: 2023
Subjects: classificationCode: 3705
subject: Geology
subject: FOS: Earth and related environmental sciences
classificationCode: 370506
subject: Palaeontology (incl. palynology)

description: Fairweather Surf Base Estimation, Ecomorph/Morphospecies Concept, and Core Sequences from the Tiarei Marginal Sites, U-series methods (Data in Table S1)
Space Fortress Game Training and Executive Control in Older Adults: A Pilot Intervention
Creators: name: Stern, Yaakov
name: Blumen, Helena M.
name: Rich, Leigh W.
name: Richards, Alexis
name: Herzberg, Gray
name: Gopher, Daniel
Publisher: name: Columbia University
Year: 2011
Subjects: Neurology
Aging
Cognition
Executive functions (Neuropsychology)
Video games

description: We investigated the feasibility of using the Space Fortress (SF) game, a complex video game originally developed to study complex skill acquisition in young adults, to improve executive control processes in cognitively healthy older adults. The study protocol consisted of 36 one-hour game play sessions over 3 months with cognitive evaluations before and after, and a follow-up evaluation at 6 months. Sixty participants were randomized to one of three conditions: Emphasis Change (EC)--elders were instructed to concentrate on playing the entire game but place particular emphasis on a specific aspect of game play in each particular game; Active Control (AC)--game play with standard instructions; Passive Control (PC)--evaluation sessions without game play. Primary outcome measures were obtained from five tasks, presumably tapping executive control processes. A total of 54 older adults completed the study protocol. One measure of executive control, WAIS-III letter-number sequencing, showed improvement in performance from pre- to post-evaluations in the EC condition, but not in the other two conditions. These initial findings are modest but encouraging. Future SF interventions need to carefully consider increasing the duration and or the intensity of the intervention by providing at-home game training, reducing the motor demands of the game, and selecting appropriate outcome measures.
The overarching finite symmetry group of Kummer surfaces in the Mathieu group M_24
Creators: name: Taormina, Anne
name: Wendland, Katrin
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Algebraic Geometry (math.AG)
subject: Group Theory (math.GR)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 14J28, 14J50, 81T40, 20B25

description: In view of a potential interpretation of the role of the Mathieu group M_24 in the context of strings compactified on K3 surfaces, we develop techniques to combine groups of symmetries from different K3 surfaces to larger 'overarching' symmetry groups. We construct a bijection between the full integral homology lattice of K3 and the Niemeier lattice of type (A_1)^24, which is simultaneously compatible with the finite symplectic automorphism groups of all Kummer surfaces lying on an appropriate path in moduli space connecting the square and the tetrahedral Kummer surfaces. The Niemeier lattice serves to express all these symplectic automorphisms as elements of the Mathieu group M_24, generating the 'overarching finite symmetry group' (Z_2)^4:A_7 of Kummer surfaces. This group has order 40320, thus surpassing the size of the largest finite symplectic automorphism group of a K3 surface by orders of magnitude. For every Kummer surface this group contains the group of symplectic automorphisms leaving the Kaehler class invariant which is induced from the underlying torus. Our results are in line with the existence proofs of Mukai and Kondo, that finite groups of symplectic automorphisms of K3 are subgroups of one of eleven subgroups of M_23, and we extend their techniques of lattice embeddings for all Kummer surfaces with Kaehler class induced from the underlying torus.
description: 55 pages; minor corrections and clarifications. Version accepted for publication in JHEP
Persistent Mobility Deficit in the Absence of Deficits in Activities of Daily Living: A Risk Factor for Mortality
Creators: name: Khokhar, Shafiq R.
name: Stern, Yaakov
name: Jacobs, Diane
name: Bell, Karen L.
name: Anderson, Karen E.
name: Noe, Enrique
name: Mayeux, Richard Paul
name: Albert, Steven M.
Publisher: name: Columbia University
Year: 2001
Subjects: Neurology
Older people--Orientation and mobility
Mortality
Geriatrics

description: OBJECTIVES: To investigate the extent to which self-reported mobility deficit in the absence of impairment in activities of daily living (ADL) is associated with elevated mortality risk. DESIGN: Prospective cohort study, with annual assessments of mobility and ADL status and ongoing monitoring of vital status. SETTING: Population-based cohort drawn from Medicare enrollees in New York City. PARTICIPANTS: One thousand two hundred ninety-eight older adults reporting functional status at baseline (1992–1994) and 2 years later. MEASUREMENTS: Subjects reported mobility (e.g., walking, climbing stairs, and rising from a chair) and ADL (e.g., bathing, toilet use, dressing, grooming, and feeding) limitations. Two-year functional status trajectories were noted. We used two additional follow-up periods, at 2 and 4 years, to examine the likelihood that older people with mobility deficit may face an increased risk of death without first passing through a state of enduring ADL disability. RESULTS: At 2 years, 12.7% had incident mobility deficit without ADL disability, and 21.3% were persistently disabled in mobility without ADL disability. Relative to subjects free of disability at baseline and follow-up, risk of mortality in the incident mobility deficit group was elevated at 2 and 4 years but did not achieve statistical significance. By contrast, for subjects with persistent mobility impairment who did not report ADL impairment, the mortality risk was significantly elevated both at 2 years (relative risk (RR) = 2.5; 95% confidence interval (CI) = 1.1–5.7)) and 4 years (RR = 2.9; 95% CI = 1.7–4.9)) of follow-up. Mortality was significantly elevated in this group in analyses restricted to respondents with no or only one comorbid condition. CONCLUSION: Continuing, self-reported mobility impairment in the absence of ADL deficit is a risk factor for mortality. Older people with self-reported mobility deficit face an increased risk of mortality without first passing through enduring states of ADL disability.
Puma concolor
Creators: name: Pereira, Alan Deivid
name: Bazilio, Sergio
name: Orsi, Mário Luís
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Carnivora
Felidae
Puma
Puma concolor

description: Puma concolor (Linnaeus, 1771) Figure 20 Records. First record was in December 09, 2013, camera trap 2 (25°08.02ʹ S, 049°56.17ʹ W) and subsequently in the monitoring sites (camera traps 3, 11, 13, 14, 15, and 16, see Fig. 1 for coordinates). Identification. Puma concolor is distinguishable by its short and uniform coat of brown color, ranging from light to reddish tones.
description: Published as part of Pereira, Alan Deivid, Bazilio, Sergio & Orsi, Mário Luís, 2018, Checklist of medium-sized to large mammals of Campos Gerais National Park, Paraná, Brazil, pp. 785-799 in Check List 14 (5) on page 795, DOI: 10.15560/14.5.785
Harmonic in-painting of CMB sky by constrained Gaussian realization
Creators: name: Kim, Jaiseung
name: Naselsky, Pavel
name: Mandolesi, Nazzareno
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The presence of astrophysical emissions between the last scattering surface and our vantage point requires us to apply a foreground mask on CMB sky map, leading to large cut around the Galactic equator and numerous holes. Since many CMB analyses, including non-Gaussianity study may be performed on a whole sky map in a more straightforward and reliable manner, it is of utmost importance to develop an efficient method to in-paint the CMB sky map, while still preserving statistical properties. In this letter, we consider Monte-Carlo simulation of constrained Gaussian field and derive it for CMB anisotropy in harmonic space, where a feasible implementation is possible with good approximation. We applied our method to the simulated data, which confirms the masked area is in-painted in a way compliant with the expected statistical properties. Subsequently, we applied our method to the WMAP foreground-reduced maps and investigated the anomalous alignment between quadrupole and octupole components. From our investigation, we find the alignment in the foreground-reduced maps is even higher than the ILC map. In particular, we find the highest alignment in the V band map, which has less foreground contamination than other bands. Therefore, we find it hard to attribute the alignment to residual foregrounds. Our method will be complementary to other efforts on in-painting or reconstructing the masked CMB data, and of great use to Planck surveyor and future missions.
description: v2: the caption of Fig. 1 corrected, references added, v3: matched with the version accepted in ApJL (the distribution plot for the alignment added, typos corrected), v4: typos corrected
Imaging Studies and APOE Genotype in Persons at Risk for Alzheimer's Disease
Creators: name: Scarmeas, Nikolaos
name: Stern, Yaakov
Publisher: name: Columbia University
Year: 2006
Subjects: Neurology
Alzheimer's disease--Patients
Magnetic resonance imaging
Cognition
Apolipoprotein E

description: Many studies have investigated APOE-related differences in cerebral structure, blood flow, metabolism, and activation in an attempt to detect early brain changes in subjects at risk for Alzheimer's disease (AD). Structural magnetic resonance imaging studies have produced conflicting results, with some failing to detect APOE-related differences and others suggesting that epsilon4 carriers have more pronounced atrophy, particularly at medial temporal structures. All functional imaging studies done during rest in middle-aged and elderly subjects have found decreased cerebral metabolism for epsilon4 carriers (mostly in areas that usually are affected by AD), and some have reported faster cerebral metabolic reductions over time. Areas with decreased resting cerebral perfusion and metabolism, in addition to other areas with increased perfusion, have been reported in young epsilon4 carriers. Imaging studies done during the performance of various cognitive tasks in middle-aged and elderly subjects, and a single study in young subjects, have produced mixed results with regionally nonspecific increased, decreased, or nondifferential APOE-related activations depending on the cognitive task used. APOE-related findings in imaging studies of nondemented subjects may be the result of incipient AD pathologic changes or of genetic heterogeneity in brain structure and function.
Hybrid classical-quantum formulations ask for hybrid notions
Creators: name: Barceló, Carlos
name: Carballo-Rubio, Raúl
name: Garay, Luis J.
name: Gómez-Escalante, Ricardo
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We reappraise some of the hybrid classical-quantum models proposed in the literature with the goal of retrieving some of their common characteristics. In particular, first, we analyze in detail the Peres-Terno argument regarding the inconsistency of hybrid quantizations of the Sudarshan type. We show that to accept such hybrid formalism entails the necessity of dealing with additional degrees of freedom beyond those in the straight complete quantization of the system. Second, we recover a similar enlargement of degrees of freedom in the so-called statistical hybrid models. Finally, we use Wigner's quantization of a simple model to illustrate how in hybrid systems the subsystems are never purely classical or quantum. A certain degree of quantumness (classicality) is being exchanged between the different sectors of the theory, which in this particular unphysical toy model makes them undistinguishable.
description: 13 pages, 3 figures (minor changes to match the published version)
Consumer Acceptance of Biofortified Iron Beans in Rural Rwanda: Experimental Evidence
Creators: name: Adewale Oparinde
name: Birol, Ekin
name: Murekezi, Abdoul
name: Lister Katsvairo
name: Disressie, Michael T.
name: Nkundimana, Jean D'Amour
name: Butare, Louis
Publisher: name: Gates Open Research
Year: 2019

description: Consumer Acceptance of Biofortified Iron Beans in Rural Rwanda: Experimental Evidence
Neuropsychological Predictors of Dependency in Patients with Alzheimer Disease
Creators: name: Sarazin, Maria
name: Stern, Yaakov
name: Berr, Claudine
name: Riba, Aliza
name: Albert, Marilyn
name: Brandt, Jason
name: Dubois, Bruno
Publisher: name: Columbia University
Year: 2005
Subjects: Neurology
Alzheimer's disease
Cognition
Alzheimer's disease--Forecasting

description: OBJECTIVE: To determine whether specific cognitive deficits can predict the progression of Alzheimer disease (AD). METHODS: Two hundred fifty-two patients with AD enrolled in the Predictors Study were followed at 6-month intervals for up to 4.5 years with neurologic, cognitive, and psychiatric examinations. Neuropsychological functions were assessed by the Modified Mini-Mental State Examination (mMMSE). Items of mMMSE were divided into five cognitive domains: temporospatial orientation, short-term memory, long-term memory, language, and visuoconstructive functions. Loss of autonomy was assessed by both the Dependency Scale (DS) and the Equivalent Institutional Care (EIC) rating. Cox proportional hazards models, adjusted for age, sex, estimated duration of illness at entry into the study, and presence of extrapyramidal signs and behavioral disturbances, were used to determine the predictive value of each neuropsychological domain on dependency outcomes. RESULTS: Global mMMSE, temporospatial orientation, and short-term memory scores were associated with a greater relative risk of moderate or severe dependency. The visuoconstructive score predicted the development of severe dependency. Long-term memory and language scores were not predictive of the EIC or DS endpoints. CONCLUSIONS: The presence of certain neuropsychological deficits at a patient's initial visit, such as short-term memory, temporospatial orientation, and constructive apraxia, predict more rapid dependency in patients with Alzheimer disease. Neuropsychological items have different weights in term of predictive power, and these effects are independent of the influence of age and disease duration at baseline.
The descriptive set-theoretic complexity of the set of points of continuity of a multi-valued function
Creators: name: Gregoriades, Vassilios
Publisher: name: arXiv
Year: 2011
Subjects: subject: Logic (math.LO)
subject: Logic in Computer Science (cs.LO)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: F.4.1

description: In this article we treat a notion of continuity for a multi-valued function $F$ and we compute the descriptive set-theoretic complexity of the set of all $x$ for which $F$ is continuous at $x$. We give conditions under which the latter set is either a $G_δ$ set or the countable union of $G_δ$ sets. Also we provide a counterexample which shows that the latter result is optimum under the same conditions. Moreover we prove that those conditions are necessary in order to obtain that the set of points of continuity of $F$ is Borel i.e., we show that if we drop some of the previous conditions then there is a multi-valued function $F$ whose graph is a Borel set and the set of points of continuity of $F$ is not a Borel set. Finally we give some analogous results regarding a stronger notion of continuity for a multi-valued function. This article is motivated by a question of M. Ziegler in [{\em Real Computation with Least Discrete Advice: A Complexity Theory of Nonuniform Computability with Applications to Linear Algebra}, {\sl submitted}].
description: 22 pages
title: Walleye pollock biomass dynamics in the Bering Sea: possibility of long-term forecasting
Creators: name: Bulatov, O. A.
name: Klyashtorin, L. B.
Publisher: name: ASC 2010 - Theme session R
Year: 2024
Subjects: Pressures, impacts, conservation, and management

description: No abstracts are to be cited without prior reference to the author.This study investigates relationships between climate variations and dynamics of walleye pollock biomass in the Bering Sea. А 100-year time-series of the major climate indices were examined: air temperature in the Arctic (Arctic dT), Pacific decadal oscillation (PDO), Aleutian Low Pressure Index (ALPI), and 150-year temperature time-series of temperature changes in Gulf of Alaska (GOA SST). In addition, a 100-year series of variations in the Total Solar Irradiance (TSI) index was examined. All climatic indices and TSI show common cyclic dynamics of 60–65 year periods with peaks in the 1940s and 2000s and minima in the 1960–1970s. The overall Bering Sea pollock biomass dynamics was assessed by three major fishing regions: Donut hole area (+ Bogosloff area), West and North Bering Sea, and East Bering Sea. Each region has its own characteristics of biomass dynamics, although a comparative analysis of walleye pollock biomass changes in the entire Bering Sea and climate indices reveals their similarity. The correlation can be seen between the total walleye pollock biomass dynamics and North Pacific climate indicators (PDO and ALPI). A historical maximum in walleye pollock total biomass was observed in the mid-1980s (32 million tons), which was followed by a notable decline in biomass. The authors suggested a stochastic model to estimate long-term changes in the total abundance of the Bering Sea pollock According to the model the downward trend in the total pollock biomass will continue up to historic minimum in 2020–2030.
Negative curves on algebraic surfaces
Creators: name: Bauer, Th.
name: Harbourne, B.
name: Knutsen, A. L.
name: Küronya, A.
name: Müller-Stach, S.
name: Roulleau, X.
name: Szemberg, T.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14G35, 14J25

description: We study curves of negative self-intersection on algebraic surfaces. We obtain results for smooth complex projective surfaces X on the number of reduced, irreducible curves C of negative self-intersection C^2. The only known examples of surfaces for which C^2 is not bounded below are in positive characteristic, and the general expectation is that no examples can arise over the complex numbers. Indeed, we show that the idea underlying the examples in positive characteristic cannot produce examples over the complex number field. The previous version of this paper claimed to give a counterexample to the Bounded Negativity Conjecture. The idea of the counterexample was to use Hecke translates of a smooth Shimura curve in order to create an infinite sequence of curves violating the Bounded Negativity Conjecture. To this end we applied Hirzebruch Proportionality to all Hecke translates, simultaneously desingularized by a version of Jaffee's Lemma which exists in the literature but which turns out to be false. Indeed, in the new version of the paper, we show that only finitely many Hecke translates of a special subvariety of a Hilbert modular surface remain smooth. This new result is based on work done jointly with Xavier Roulleau, who has been added as an author. The other results in the original posting of this paper remain unchanged.
description: 14 pages, X. Roulleau added as author, counterexample to Bounded Negativity Conjecture withdrawn and replaced by a proof that there are only finitely many smooth Shimura curves on a compact Hilbert modular surface; the other results in the original posting of this paper remain unchanged
Eira barbara
Creators: name: Pereira, Alan Deivid
name: Bazilio, Sergio
name: Orsi, Mário Luís
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Carnivora
Mustelidae
Eira
Eira barbara

description: Eira barbara (Linnaeus, 1758) Figure 22 Records. First record was in July 17, 2013, camera trap 3 (25°03.59ʹ S, 049°57.26ʹ W) and subsequently in the monitoring sites (camera traps 1, 4, 5, 12, 13, 15, 16, 18 and 19, see Fig. 1 for coordinates). Identification. Two mustelids were registered in the PNCG. The identification of these animals was based on the pattern of the 2 species, namely, long body, short limbs and long tail. In the case of Eira barbara the color of the coat is dark brown throughout the entire body, with a lighter brown for head and neck, with regional variations.
description: Published as part of Pereira, Alan Deivid, Bazilio, Sergio & Orsi, Mário Luís, 2018, Checklist of medium-sized to large mammals of Campos Gerais National Park, Paraná, Brazil, pp. 785-799 in Check List 14 (5) on pages 795-796, DOI: 10.15560/14.5.785
An Early 13th Century Double-Flued Pottery Kiln at Carrickfergus, Co. Antrim: An Interim Report
Creators: name: Simpson, ML
name: Bryan, PS
name: Delaney, TG
name: Dickson, A
Publisher: name: Archaeology Data Service
Year: 2023

description: Medieval Ceramics: Journal of the Medieval Ceramics Research Group, 3, 41-52
Noncollinear magnetism and spin-orbit coupling in 5d pyrochlore oxide Cd2Os2O7
Creators: name: Shinaoka, Hiroshi
name: Miyake, Takashi
name: Ishibashi, Shoji
Publisher: name: arXiv
Year: 2011
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We investigated the electronic and magnetic properties of the pyrochlore oxide Cd$_2$Os$_2$O$_7$ using the density-functional theory plus on-site repulsion ($U$) method, and depict the ground-state phase diagram with respect to $U$. We conclude that the all-in/all-out non-collinear magnetic order is stable in a wide range of $U$. We also show that the easy-axis anisotropy arising from the spin-orbit (SO) coupling plays a significant role in stabilizing the all-in/all-out magnetic order. A \textit{pseudo gap} was observed near the transition between the antiferromagnetic metallic and insulating phases. Finally, we discuss possible origins of the peculiar low-temperature($T$) properties observed in experiments.
description: 5 pages, 4 figures, accepted for publication in Physical Review Letters
Serum Neopterin Level Predicts HIV-Related Mortality but Not Progression to Aids or Development of Neurological Disease in Gay Men and Parenteral Drug Users
Creators: name: Sacktor, Ned
name: Liu, Xinhua
name: Popescu, Matei
name: Marder, Karen
name: Stern, Yaakov
name: Mayeux, Richard Paul
Publisher: name: Columbia University
Year: 1995
Subjects: Neurology
HIV-positive persons--Employment
Neopterin
Mortality
Intravenous drug abusers
Gay men

description: Objective: To investigate the ability of elevated serum neopterin levels to predict independently mortality, progression to acquired immunodeficiency syndrome, and development of neurological disease. Design: Cross-sectional and longitudinal study of gay and/or bisexual men and parenteral drug users. Setting and Patients: Patients included human immunodeficiency virus (HIV)—negative and —positive gay and/or bisexual men and parenteral drug—using men and women who volunteered for an outpatient study of the natural history of HIV infection. Results: Serum neopterin levels were significantly elevated in HIV-positive patients (mean, 18.0 nmol/L; SD, 19.2 nmol/L), compared with those in HIV-negative patients (mean, 7.5 nmol/L; SD, 5.5 nmol/L) (P
title: Very massive stars in the local universe
Creators: name: Vink, Jorick Sandor
name: Heger, Alexander
name: Krumholz, Mark R.
name: Puls, Joachim
name: Banerjee, S.
name: Castro, N.
name: Chen, K.-J.
name: Chenè, A.-N.
name: Crowther, P. A.
name: Daminelli, A.
name: Gräfener, G.
name: Groh, J. H.
name: Hamann, Wolf-Rainer
name: Heap, S.
name: Herrero, A.
name: Kaper, L.
name: Najarro, F.
name: Oskinova, Lidia M.
name: Roman-Lopes, A.
name: Rosen, A.
name: Sander, A.
name: Shirazi, M.
name: Sugawara, Y.
name: Tramper, F.
name: Vanbeveren, D.
name: Voss, R.
name: Wofford, A.
name: Zhang, Y.
Publisher: name: Universität Potsdam
Year: 2019
Subjects: subject: 520 Astronomie und zugeordnete Wissenschaften

description: Recent studies have claimed the existence of very massive stars (VMS) up to 300 M⊙ in the local Universe. As this finding may represent a paradigm shift for the canonical stellar upper-mass limit of 150 M⊙, it is timely to discuss the status of the data, as well as the far-reaching implications of such objects. We held a Joint Discussion at the General Assembly in Beijing to discuss (i) the determination of the current masses of the most massive stars, (ii) the formation of VMS, (iii) their mass loss, and (iv) their evolution and final fate. The prime aim was to reach broad consensus between observers and theorists on how to identify and quantify the dominant physical processes.
description: Postprints der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe, 601
Schrodinger cat states prepared by Bloch oscillation in a spin-dependent optical lattice
Creators: name: Wu, B. J.
name: Zhang, J. M.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We propose to use Bloch oscillation of ultra-cold atoms in a spin-dependent optical lattice to prepare schrodinger cat states. Depending on its internal state, an atom feels different periodic potentials and thus has different energy band structures for its center-of-mass motion. Consequently, under the same gravity force, the wave packets associated with different internal states perform Bloch oscillation of different amplitudes in space and in particular they can be macroscopically displaced with respect to each other. In this way, a cat state can be prepared.
description: 4 pages, 3 figures; slightly modified
Galictis cuja
Creators: name: Pereira, Alan Deivid
name: Bazilio, Sergio
name: Orsi, Mário Luís
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Carnivora
Mustelidae
Galictis
Galictis cuja

description: Galictis cuja (Molina, 1782) Figure 23 Records. First record was in May 03, 2017, camera trap 18 (25°03.37ʹ S, 049°59.44ʹ W) and subsequently in the monitoring site 11 (see Fig. 1 for coordinates). Identification. Galictis cuja is smaller in size than E. barbara; paws, belly, throat and face are black, with a yellowish back.
description: Published as part of Pereira, Alan Deivid, Bazilio, Sergio & Orsi, Mário Luís, 2018, Checklist of medium-sized to large mammals of Campos Gerais National Park, Paraná, Brazil, pp. 785-799 in Check List 14 (5) on page 796, DOI: 10.15560/14.5.785
Excitation Gap from Optimized Correlation Functions in Quantum Monte Carlo Simulations
Creators: name: Hen, Itay
Publisher: name: arXiv
Year: 2011
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: We give a prescription for finding optimized correlation functions for the extraction of the gap to the first excited state within quantum Monte Carlo simulations. We demonstrate that optimized correlation functions provide a more accurate reading of the gap when compared to other `non-optimized' correlation functions and are generally characterized by considerably larger signal-to-noise ratios. We also analyze the cost of the procedure and show that it is not computationally demanding. We illustrate the effectiveness of the proposed procedure by analyzing several exemplary many-body systems of interacting spin-1/2 particles.
description: 11 pages, 5 figures
title: Increasing the usability of pedestrian navigation interfaces by means of landmark visibility analysis
Creators: name: Delikostidis, Ioannis
name: Engel, Juri
name: Retsios, Bas
name: Elzakker, Corné P.J.M. van
name: Kraak, Menno-Jan
name: Döllner, Jürgen
Publisher: name: Universität Potsdam
Year: 2019
Subjects: subject: 380 Handel, Kommunikation, Verkehr

description: Communicating location-specific information to pedestrians is a challenging task which can be aided by user-friendly digital technologies. In this paper, landmark visibility analysis, as a means for developing more usable pedestrian navigation systems, is discussed. Using an algorithmic framework for image-based 3D analysis, this method integrates a 3D city model with identified landmarks and produces raster visibility layers for each one. This output enables an Android phone prototype application to indicate the visibility of landmarks from the user's actual position. Tested in the field, the method achieves sufficient accuracy for the context of use and improves navigation efficiency and effectiveness.
description: Postprints der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe, 599
title: Magnetic reconnection driven by filament eruption in the 7 June 2011 event
Creators: name: Driel-Gesztelyi, L. van
name: Baker, D.
name: Török, T.
name: Pariat, Etienne
name: Green, L. M.
name: Williams, D. R.
name: Carlyle, J.
name: Valori, G.
name: Démoulin, Pascal
name: Matthews, S. A.
name: Kliem, Bernhard
name: Malherbe, J.-M.
Publisher: name: Universität Potsdam
Year: 2019
Subjects: subject: 520 Astronomie und zugeordnete Wissenschaften

description: During an unusually massive filament eruption on 7 June 2011, SDO/AIA imaged for the first time significant EUV emission around a magnetic reconnection region in the solar corona. The reconnection occurred between magnetic fields of the laterally expanding CME and a neighbouring active region. A pre-existing quasi-separatrix layer was activated in the process. This scenario is supported by data-constrained numerical simulations of the eruption. Observations show that dense cool filament plasma was re-directed and heated in situ, producing coronal-temperature emission around the reconnection region. These results provide the first direct observational evidence, supported by MHD simulations and magnetic modelling, that a large-scale re-configuration of the coronal magnetic field takes place during solar eruptions via the process of magnetic reconnection.
description: Postprints der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe, 608
Nasua nasua nasua (Linnaeus 1766
Creators: name: Pereira, Alan Deivid
name: Bazilio, Sergio
name: Orsi, Mário Luís
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Carnivora
Procyonidae
Nasua
Nasua nasua

description: Nasua nasua (Linnaeus, 1766) Figure 24 Records. First record was in July 13, 2013, camera trap 1 (25°02.25ʹ S, 050°01.39ʹ W) and subsequently in the monitoring sites (camera traps 2, 3, 4, 5, 6, 12, 13, and 15, see Fig. 1 for coordinates). Identification. Two species of the family Procyonidae were registered. Nasua nasua, an exclusive species of South America, has an enlarged head tapering into a narrow and prolonged pointed snout. Coloration varies according to group, although the general pattern ranges between light and dark brown, with a generally striped tail.
description: Published as part of Pereira, Alan Deivid, Bazilio, Sergio & Orsi, Mário Luís, 2018, Checklist of medium-sized to large mammals of Campos Gerais National Park, Paraná, Brazil, pp. 785-799 in Check List 14 (5) on page 796, DOI: 10.15560/14.5.785
N-methyl-D-aspartate receptors of the central nervous system : network connectivity, trafficking, and plasticity
Creators: name: She, Kevin
Publisher: name: University of British Columbia
Year: 2012

description: Activity through NMDA type glutamate receptors sculpts connectivity in the developing nervous system and is typically studied in the visual system in vivo where individual synapses are difficult to visualize. Here, we developed a model of NMDA-receptor dependent synaptic competition in dissociated cultured hippocampal neurons. GluN1 -/- (KO) mouse hippocampal neurons were cultured alone or in defined ratios with wild type (WT) neurons. Synapse development was assessed by immunofluorescence for PSD-95 apposed to VGlut1. Synapse density was specifically enhanced only onto minority WT neurons co-cultured with majority KO neighbour neurons and this increased synapse density was dependent on activity through NMDA receptors. This enhanced synaptic density onto NMDA receptor-competent neurons in minority co-culture represents a cell culture paradigm for studying synaptic competition. Trafficking of NMDA receptors to the cell surface is critical for proper brain function. Recent evidence suggest that surface trafficking of other ionotropic glutamate receptors requires ligand binding for exit from the endoplasmic reticulum. We show that glutamate binding is required for trafficking of NMDA receptors to the cell surface by expressing a panel of GluN2B ligand binding mutants in heterologous cells and primary rodent neurons and found that glutamate efficacy correlates with surface expression. Such a correlation was found even with inhibition of endocytosis indicating differences in forward trafficking. These results indicate that ligand binding is critical for receptor trafficking to the cell surface. NMDA receptors mediate many forms of synaptic plasticity. GluN2B is proposed to bind and recruit CaMKII to synapses to mediate multiple forms of synaptic plasticity. We find that accumulation of CFP-CaMKIIα at synapses is induced in wild-type but not in KO neurons by bath stimulation of NMDA receptors or by a chemical long-term potentiation protocol. Stimulated synaptic accumulation of CFP-CaMKIIα was rescued in KO neurons by YFP-GluN2B or chimeric GluN2A/2B tail but not by GluN2A, chimeric GluN2B/2A tail, or GluN2B with point mutations in the CaMKII binding site. Thus, activity-regulated synaptic aggregation of CaMKII is dependent on the cytoplasmic CaMKII binding site of GluN2B and not on differential permeation properties between GluN2B and GluN2A.
PET Network Abnormalities and Cognitive Decline in Patients with Mild Cognitive Impairment
Creators: name: Devanand, Devangere P.
name: Habeck, Christian G.
name: Tabert, Matthias H.
name: Scarmeas, Nikolaos
name: Pelton, Gregory
name: Moeller, James R.
name: Mensh, Brett D.
name: Tarabula, Tyler
name: Van Heertum, Ronald L.
name: Stern, Yaakov
Publisher: name: Columbia University
Year: 2006
Subjects: Neuropsychopharmacology
Mild cognitive impairment
Cognition
Tomography, Emission

description: Temporoparietal and posterior cingulate metabolism deficits characterize patients with Alzheimer's disease (AD). A H(2)(15)O resting PET scan covariance pattern, derived by using multivariate techniques, was previously shown to discriminate 17 mild AD patients from 16 healthy controls. This AD covariance pattern revealed hypoperfusion in bilateral inferior parietal lobule and cingulate; and left middle frontal, inferior frontal, precentral, and supramarginal gyri. The AD pattern also revealed hyperperfusion in bilateral insula, lingual gyri, and cuneus; left fusiform and superior occipital gyri; and right parahippocampal gyrus and pulvinar. In an independent sample of 23 outpatients with mild cognitive impairment (MCI) followed at 6-month intervals, the AD pattern score was evaluated as a predictor of cognitive decline. In this MCI sample, an H2(15)O resting PET scan was carried out at baseline. Mean duration of follow-up was 48.8 (SD 15.5) months, during which time six of 23 MCI patients converted to AD. In generalized estimating equations (GEE) analyses, controlling for age, sex, education, and baseline neuropsychological scores, increased AD pattern score was associated with greater decline in each neuropsychological test score over time (Mini Mental State Exam, Selective Reminding Test delayed recall, Animal Naming, WAIS-R digit symbol; Ps<0.01-0.001). In summary, a resting PET covariance pattern previously reported to discriminate AD patients from control subjects was applied prospectively to an independent sample of MCI patients and found to predict cognitive decline. Independent replication in larger samples is needed before clinical application can be considered
Uncovering disassortativity in large scale-free networks
Creators: name: Litvak, Nelly
name: van der Hofstad, Remco
Publisher: name: arXiv
Year: 2012
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Social and Information Networks (cs.SI)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Mixing patterns in large self-organizing networks, such as the Internet, the World Wide Web, social and biological networks are often characterized by degree-degree dependencies between neighbouring nodes. In this paper we propose a new way of measuring degree-degree dependencies. One of the problems with the commonly used assortativity coefficient is that in disassortative networks its magnitude decreases with the network size. We mathematically explain this phenomenon and validate the results on synthetic graphs and real-world network data. As an alternative, we suggest to use rank correlation measures such as Spearman's rho. Our experiments convincingly show that Spearman's rho produces consistent values in graphs of different sizes but similar structure, and it is able to reveal strong (positive or negative) dependencies in large graphs. In particular, we discover much stronger negative degree-degree dependencies} in Web graphs than was previously thought. {Rank correlations allow us to compare the assortativity of networks of different sizes, which is impossible with the assortativity coefficient due to its genuine dependence on the network size. We conclude that rank correlations provide a suitable and informative method for uncovering network mixing patterns.
title: Energy intake, growth rate and body composition of young Labrador Retrievers and Miniature Schnauzers fed different dietary levels of vitamin A
Creators: name: Brenten, Thomas
name: Morris, Penelope J.
name: Salt, Carina
name: Raila, Jens
name: Kohn, Barbara
name: Brunnberg, Leo
name: Schweigert, Florian J.
name: Zentek, Jürgen
Publisher: name: Universität Potsdam
Year: 2019
Subjects: subject: 570 Biowissenschaften; Biologie

description: Research in rodents has shown that dietary vitamin A reduces body fat by enhancing fat mobilisation and energy utilisation; however, their effects in growing dogs remain unclear. In the present study, we evaluated the development of body weight and body composition and compared observed energy intake with predicted energy intake in forty-nine puppies from two breeds (twenty-four Labrador Retriever (LAB) and twenty-five Miniature Schnauzer (MS)). A total of four different diets with increasing vitamin A content between 5.24 and 104.80 mu mol retinol (5000-100 000 IU vitamin A)/4184 kJ (1000 kcal) metabolisable energy were fed from the age of 8 weeks up to 52 (MS) and 78 weeks (LAB). The daily energy intake was recorded throughout the experimental period. The body condition score was evaluated weekly using a seven-category system, and food allowances were adjusted to maintain optimal body condition. Body composition was assessed at the age of 26 and 52 weeks for both breeds and at the age of 78 weeks for the LAB breed only using dual-energy X-ray absorptiometry. The growth curves of the dogs followed a breed-specific pattern. However, data on energy intake showed considerable variability between the two breeds as well as when compared with predicted energy intake. In conclusion, the data show that energy intakes of puppies particularly during early growth are highly variable; however, the growth pattern and body composition of the LAB and MS breeds are not affected by the intake of vitamin A at levels up to 104.80 mu mol retinol (100 000 IU vitamin A)/4184 kJ (1000 kcal).
description: Postprints der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe, 603
Lepus europaeus
Creators: name: Pereira, Alan Deivid
name: Bazilio, Sergio
name: Orsi, Mário Luís
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Lagomorpha
Leporidae
Lepus
Lepus europaeus

description: Lepus europaeus (Pallas, 1778) Figure 26
description: Published as part of Pereira, Alan Deivid, Bazilio, Sergio & Orsi, Mário Luís, 2018, Checklist of medium-sized to large mammals of Campos Gerais National Park, Paraná, Brazil, pp. 785-799 in Check List 14 (5) on page 796, DOI: 10.15560/14.5.785
BaCu3O4: High Temperature Magnetic Order in One-Dimensional S=1/2 Diamond-Chains
Creators: name: Rischau, Carl-Willem
name: Leridon, Brigitte
name: Colson, Dorothée
name: Forget, Anne
name: Monod, Philippe
Publisher: name: arXiv
Year: 2012
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The magnetic properties of the alkaline earth oxocuprate BaCu3O4 are investigated. We show that the characteristic Cu3O4 layers of this material can be described with diamond chains of antiferromagnetically coupled Cu 1/2 spins with only a weak coupling between two adjacent chains. These Cu3O4 layers seem to represent a so far unique system of weakly coupled one-dimensional magnetic objects where the local AF ordering of the Cu2+ ions leads to an actual net magnetic moment of an isolated diamond chain. We demonstrate a magnetic transition at a high Néel temperature T_{N}=336 K.
Cuniculus paca
Creators: name: Pereira, Alan Deivid
name: Bazilio, Sergio
name: Orsi, Mário Luís
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Rodentia
Cuniculidae
Cuniculus
Cuniculus paca

description: Cuniculus paca (Linnaeus, 1766) Figure 27 Records. First record was in July 12, 2013, camera trap 5 (25°07.27ʹ S, 049°56.49ʹ W) and subsequently in the monitoring sites (camera traps 1, 2, 3, 6, 7, 8, 9, 11, 12, 13, 17, 18 and 19, see Fig. 1 for coordinates). Identification. Cuniculus paca is a medium-sized rodent. Identification of the species was based on the pattern of the coat, ranging between brownish-red and dark brown, with a pattern of whitish rounded spots in longitudinal lines.
description: Published as part of Pereira, Alan Deivid, Bazilio, Sergio & Orsi, Mário Luís, 2018, Checklist of medium-sized to large mammals of Campos Gerais National Park, Paraná, Brazil, pp. 785-799 in Check List 14 (5) on page 796, DOI: 10.15560/14.5.785
title: Minimal intervention strategies in logical signaling networks with ASP
Creators: name: Kaminski, Roland
name: Schaub, Torsten
name: Siegel, Anne
name: Videla, Santiago
Publisher: name: Universität Potsdam
Year: 2019
Subjects: subject: 004 Datenverarbeitung; Informatik

description: Proposing relevant perturbations to biological signaling networks is central to many problems in biology and medicine because it allows for enabling or disabling certain biological outcomes. In contrast to quantitative methods that permit fine-grained (kinetic) analysis, qualitative approaches allow for addressing large-scale networks. This is accomplished by more abstract representations such as logical networks. We elaborate upon such a qualitative approach aiming at the computation of minimal interventions in logical signaling networks relying on Kleene's three-valued logic and fixpoint semantics. We address this problem within answer set programming and show that it greatly outperforms previous work using dedicated algorithms.
description: Postprints der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe, 596