cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The Relative Importance of Search versus Credence Product Attributes: Organic and Locally Grown
Creators: name: Wirth, Ferdinand F.
name: Stanton, John L.
name: Wiley, James B.
name: Wirth, Ferdinand F.
name: Stanton, John L.
name: Wiley, James B.
Publisher: name: Unknown
Year: 2011
Subjects: subject: Consumer/Household Economics
subject: Food Consumption/Nutrition/Food Safety
subject: Marketing
subject: FOS: Economics and business
subject: conjoint analysis
subject: organic
subject: locally grown
subject: credence attributes

description: Organic foods and local foods have come to the forefront of consumer issues, due to concerns about nutrition, health, sustainability, and food safety. A conjoint analysis experiment quantified the relative importance of, and trade-offs between, apple search and experience attributes (quality/blemishes, size, flavor), credence attributes (conventional vs. organic production method, local origin vs. product of USA vs. imported), and purchase price when buying apples. Quality is the most important apple attribute. Production method—organic versus conventional—had no significant impact on preferences.
Comparing Willingness to Pay for Organic, Natural, Locally Grown, and State Marketing Program Promoted Foods in the Mid-Atlantic Region
Creators: name: Onken, Kathryn A.
name: Bernard, John C.
name: Pesek, John D.
name: Onken, Kathryn A.
name: Bernard, John C.
name: Pesek, John D.
Publisher: name: Unknown
Year: 2011
Subjects: subject: Consumer/Household Economics
subject: Demand and Price Analysis
subject: Marketing
subject: FOS: Economics and business
subject: organic
subject: natural
subject: locally grown
subject: state marketing program
subject: choice experiment

description: A choice experiment of Mid-Atlantic consumers was conducted to determine marginal willingness to pay for the attributes organic, natural, locally grown, and state marketing program promoted for strawberry preserves. The influence of purchasing venue on willingness to pay was also examined. Results indicated a price premium when purchased at a farmers market across all five states and versions. Organic was preferred to natural in only one state. Preference ordering between local and state program promoted varied. Consumers in Maryland and Pennsylvania clearly preferred local, while those in New Jersey seemed most likely to prefer the state program version.
Vid2Curve: Simultaneous Camera Motion Estimation and Thin Structure Reconstruction from an RGB Video
Creators: name: Wang, Peng
name: Liu, Lingjie
name: Chen, Nenglun
name: Chu, Hung-Kuo
name: Theobalt, Christian
name: Wang, Wenping
Publisher: name: arXiv
Year: 2020
Subjects: subject: Graphics (cs.GR)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Image and Video Processing (eess.IV)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Thin structures, such as wire-frame sculptures, fences, cables, power lines, and tree branches, are common in the real world. It is extremely challenging to acquire their 3D digital models using traditional image-based or depth-based reconstruction methods because thin structures often lack distinct point features and have severe self-occlusion. We propose the first approach that simultaneously estimates camera motion and reconstructs the geometry of complex 3D thin structures in high quality from a color video captured by a handheld camera. Specifically, we present a new curve-based approach to estimate accurate camera poses by establishing correspondences between featureless thin objects in the foreground in consecutive video frames, without requiring visual texture in the background scene to lock on. Enabled by this effective curve-based camera pose estimation strategy, we develop an iterative optimization method with tailored measures on geometry, topology as well as self-occlusion handling for reconstructing 3D thin structures. Extensive validations on a variety of thin structures show that our method achieves accurate camera pose estimation and faithful reconstruction of 3D thin structures with complex shape and topology at a level that has not been attained by other existing reconstruction methods.
description: Accepted by SIGGRAPH 2020
HBN-encapsulated, graphene-based room-temperature terahertz receivers with high speed and low noise
Creators: name: Viti, Leonardo
name: Purdie, David G.
name: Lombardo, Antonio
name: Ferrari, Andrea C.
name: Vitiello, Miriam S.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Applied Physics (physics.app-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Uncooled Terahertz (THz) photodetectors (PDs) showing fast (ps) response and high sensitivity (noise equivalent power (NEP) < $nWHz^{-1/2}$) over a broad (0.5THz-10THz) frequency range are needed for applications in high-resolution spectroscopy (relative accuracy ~ $10^{-11}$), metrology, quantum information, security, imaging, optical communications. However, present THz receivers cannot provide the required balance between sensitivity, speed, operation temperature and frequency range. Here, we demonstrate an uncooled THz PD combining the low (~2000 $k_{B}μm^{-2}$) electronic specific heat of high mobility (> 50000 $cm^{2}V^{-1}s^{-1}$) hBN-encapsulated graphene with the asymmetric field-enhancement produced by a bow-tie antenna resonating at 3 THz. This produces a strong photo-thermoelectric conversion, which simultaneously leads to a combination of high sensitivity (NEP $\leq$ 160 $pWHz^{-1/2}$), fast response time ($\leq 3.3 ns$) and a four orders of magnitude dynamic range, making our devices the fastest, broadband, low noise, room temperature THz PD to date.
description: This is the unedited authors' version of the submitted article, published in its final form at http://dx.doi.org/10.1021/acs.nanolett.9b05207 16 Pages, 4 Figures
The need for open infrastructure
Creators: name: Thaney, Kaitlin
Publisher: name: Zenodo
Year: 2022
Subjects: open infrastructure
scholarly communication
financial sustainability
open science

description: Slides from a 2022-03-15 presentation to the Research Libraries UK Conference (RLUK 22) by Kaitlin Thaney of Invest in Open Infrastructure.

description: Information about how our work is funded can be found on our website: https://investinopen.org/about/how-were-funded/
Calculations of the Exclusive Processes 2H(e,e'p)n, 3He(e,e'p)2H and 3He(e,e'p)(pn) within a Generalized Glauber Approach
Creators: name: Atti, C. Ciofi degli
name: Kaptari, L. P.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The exclusive processes 2H(e,e'p)n, 3He(e,e'p)2H and 3He(e,e'p)(pn), have been analyzed using realistic few-body wave functions and treating the final state interaction (FSI) within a Generalized Eikonal Approximation (GEA), based upon the direct calculation of the Feynman diagrams describing the rescattering of the struck nucleon with the nucleons of the A-1 system. The approach represents an improvement of the conventional Glauber approach (GA), in that it allows one to take into account the effects of the nuclear excitation of the $A-1$ system on the rescattering of the struck nucleon. Using realistic three-body wave functions corresponding to the AV18 interaction, the results of our parameter free calculations are compared with available experimental data. It is found that in some kinematical conditions FSI effects represent small corrections, whereas in other kinematics conditions they are very large and absolutely necessary to provide a satisfactory agreement between theoretical calculations and experimental data. It is shown that in the kinematics of the experimental data which have been considered, covering the region of missing momentum and energy with p_m < 0.6 GeV/c and E_m < 100 MeV in the perpendicular kinematics, the GA and GEA predictions differ only by less than 3-4 %.
description: Typos detected and removed while Proof reading. Physical Review C. in Press
17.pdf
Creators: name: Surana, Pallavi
name: Manjunatha Reddy
name: Sumathra Manokaran
name: Anismita Saha
name: Ujjain, Tanisha
name: Singh, Shruti
Publisher: name: figshare
Year: 2020
Subjects: subject: Computational Biology
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: H1N1 flu has been a widespread catastrophe emerging notoriously the past decade. This study is focused on evaluating the possible role of natural antioxidants as sialic acid adding moeities which could help in alleviating the flu attack. Ten different natural antioxidant compounds were the focus of the study. Molecular docking was performed to understand the binding interactions. Further validation was done by fast simulation to predict the protein structure fluctuations. From the fluctuation plots of chain A, B, C and D, we observe that India HA has predominant interactions. The small molecules that could help lessen the incidence of H1N1 flu are cathecin, andrographolide, biacalin, curcumin and eugenol. Andrographolide is the most important one. Further animal studies would help validate these findings further.
Symmetries and Reduction -- part I -- Poisson and symplectic picture
Creators: name: Marmo, Giuseppe
name: Schiavone, Luca
name: Zampini, Alessandro
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Symplectic Geometry (math.SG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: Coherently with the principle of analogy suggested by Dirac, we describe a general setting for reducing a classical dynamics, and the role of the Noether theorem -- connecting symmetries with constants of the motion -- within a reduction. This is the first of two papers, and it focuses on the reduction within the Poisson and the symplectic formalism.
description: 50 pages, revised version
Fishing impacts on marine ecosystems off Brazil : with emphasis on the northeastern region
Creators: name: Freire, Kátia De Meirelles Felizola
Publisher: name: University of British Columbia
Year: 2010

description: This study is the first contribution towards the development of ecosystem-based fisheries management in northeastern Brazil, through the exploration of fishing policies based on a trophic model. The following objectives were addressed: 1) analysis of the richness of common names of Brazilian fishes; 2) reconstruction of time series of marine catches; 3) modelling of trophic interactions off northeastern Brazil; and 4) assessment of fishing policies. The analysis of common names indicated a high richness of names per species (average = 6) and the use of the same common name for different species, with a negative impact on the accuracy of catch statistics. The reconstruction of catch time series was based on landings from national yearbooks, and from ICCAT and FAO's databases (1978-2000), allowing for the detection of 'fishing down the food web' in northeastern Brazil. The trophic model estimated a total biomass for this ecosystem of 222 tonnes-km⁻² (excluding detritus), and indicated a low degree of omnivory and the high importance of detritus. Simulations for 2001-2028 indicated that current fishing effort is unsustainable for lobsters and swordfish; however, the model inadequately described the dynamics of swordfish, tunas, and other large pelagics, which have large distribution areas. The simulation of optimum fishing policies led to a diverse fleet when ecosystem health was emphasized. If the main objective was economic or social (or a combination of both and ecosystem health), manual collection of coastal resources, and demersal industrial fisheries could be boosted, while the lobster and longline fisheries should be phased out. A 50% reduction in effort for lobster fisheries would not produce significant changes in lobster biomass; a reduction in effort to the 1978 level (f[sub MSY]) would lead to biomass recovery. The instability of institutions responsible for fisheries management in Brazil has had a deleterious impact on the resources. This negative impact is expected to increase due to the current split of responsibility between two institutions with diverse agendas. An improvement in the collection system of catch statistics is recommended, which would consider a standardized set of common names, as well as gathering information on biological, economic, and social components of this ecosystem and its fisheries.
Factorization in B->V gamma Decays
Creators: name: Becher, Thomas
name: Hill, Richard J.
name: Neubert, Matthias
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The factorization properties of the radiative decays B->V gamma are analyzed at leading order in 1/m_b using the soft-collinear effective theory. It is shown that the decay amplitudes can be expressed in terms of a B->V form factor evaluated at q^2=0, light-cone distribution amplitudes of the B and V mesons, and calculable hard-scattering kernels. The renormalization-group equations in the effective theory are solved to resum perturbative logarithms of the different scales in the decay process. Phenomenological implications for the B->K* gamma branching ratio, isospin asymmetry, and CP asymmetries are discussed, with particular emphasis on possible effects from physics beyond the Standard Model.
description: 52 pages, 7 figures; references added and brief discussion of power corrections included; version to appear in Phys. Rev. D
Holes in the ghost condensate
Creators: name: Krotov, D.
name: Rebbi, C.
name: Rubakov, V.
name: Zakharov, V.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Astrophysics (astro-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In a recently proposed model of ``ghost condensation'', spatially homogeneous states may mix, via tunneling, with inhomogeneous states which are somewhat similar to bubbles in the theory of false vacuum decay, the corresponding bubble nucleation rate being exponentially sensitive to the ultraviolet completion of the model. The conservation of energy and charge requires that the energy density is negative and the field is strongly unstable in a part of the nucleated bubble. Unlike in the theory of false vacuum decay, this region does not expand during subsequent real-time evolution. In the outer part, positive energy outgoing waves develop, which eventually form shocks. Behind the outgoing waves and away from the bubble center, the background settles down to its original value. The outcome of the entire process is thus a microscopic region of negative energy and strong field -- ``hole in the ghost condensate'' -- plus a collection of outgoing waves (particles of the ghost condensate field) carrying away finite energy.
description: 18 pages, 14 figures
Detailed chemical compositions of planet hosting stars: I. Exploration of possible planet signatures
Creators: name: Liu, F.
name: Yong, D.
name: Asplund, M.
name: Wang, H. S.
name: Spina, L.
name: Acuna, L.
name: Melendez, J.
name: Ramirez, I.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present a line-by-line differential analysis of a sample of 16 planet hosting stars and 68 comparison stars using high resolution, high signal-to-noise ratio spectra gathered using Keck. We obtained accurate stellar parameters and high-precision relative chemical abundances with average uncertainties in \teff, \logg, [Fe/H] and [X/H] of 15 K, 0.034 [cgs], 0.012 dex and 0.025 dex, respectively. For each planet host, we identify a set of comparison stars and examine the abundance differences (corrected for Galactic chemical evolution effect) as a function of the dust condensation temperature, \tcond, of the individual elements. While we confirm that the Sun exhibits a negative trend between abundance and \tcond, we also confirm that the remaining planet hosts exhibit a variety of abundance $-$ \tcond\ trends with no clear dependence upon age, metallicity or \teff. The diversity in the chemical compositions of planet hosting stars relative to their comparison stars could reflect the range of possible planet-induced effects present in these planet hosts, from the sequestration of rocky material (refractory poor), to the possible ingestion of planets (refractory rich). Other possible explanations include differences in the timescale, efficiency and degree of planet formation or inhomogeneous chemical evolution. Although we do not find an unambiguous chemical signature of planet formation among our sample, the high-precision chemical abundances of the host stars are essential for constraining the composition and structure of their exoplanets.
description: 14 pages, 10 figures, accepted for publication in MNRAS
Pseudo Landau levels, negative strain resistivity, and enhanced thermopower in twisted graphene nanoribbons
Creators: name: Shi, Zheng
name: Lu, Hai-Zhou
name: Liu, Tianyu
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: As a canonical response to the applied magnetic field, the electronic states of a metal are fundamentally reorganized into Landau levels. In Dirac metals, Landau levels can be expected without magnetic fields, provided that an inhomogeneous strain is applied to spatially modulate electron hoppings in a similar way as the Aharonov-Bohm phase. We here predict that a twisted zigzag nanoribbon of graphene exhibits strain-induced pseudo Landau levels of unexplored but analytically solvable dispersions at low energies. The presence of such dispersive pseudo Landau levels results in a negative strain resistivity characterizing the $(1+1)$-dimensional chiral anomaly if partially filled and can greatly enhance the thermopower when fully filled.
description: 13 pages, 7 figures; More data and figures added compared to v1; a new author added; published version
Inequivalent quantizations of the three-particle Calogero model constructed by separation of variables
Creators: name: Feher, L.
name: Tsutsui, I.
name: Fulop, T.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We quantize the 1-dimensional 3-body problem with harmonic and inverse square pair potential by separating the Schrödinger equation following the classic work of Calogero, but allowing all possible self-adjoint boundary conditions for the angular and radial Hamiltonians. The inverse square coupling constant is taken to be $g=2ν(ν-1)$ with ${1/2}
description: 45 pages, 6 figures, LaTeX, v2: a reference and a note added, v3: merely a constant is corrected
EXTRACURRICULAR ACTIVITIES IN THE CONTEXT OF INCLUSIVE EDUCATION AS A MEANS OF FOSTERING A HEALTHY LIFESTYLE IN YOUNG ELEMENTARY SCHOOL CHILDREN
Creators: name: Hurskaya, V.A.
Publisher: name: Вестник науки
Year: 2024
Subjects: inclusive education
healthy lifestyle
extracurricular activities
children with disabilities
fostering health need
young school age
pedagogical activity
advancement of social interaction
health-preserving educational paradigm
educational process

description: The paper examines the significance of extracurricular activities in the context of inclusive education and the development of a need for a healthy lifestyle among children of primary school age. The study is based on the analysis of scientific and methodological literature, defining the criteria for shaping a healthy lifestyle and the role of extracurricular activities in achieving this goal.
Monitoring Attitudes of the Public Survey
Creators: name: Insurance, The American Council Of Life
Publisher: name: Roper Center for Public Opinion Research
Year: 2021

description: Most serious problem (1); effectiveness of regulation (1); preferred regulation of various industries (7); nationwide availability of various services (6); competitiveness of various industries (7); agreement with various statements (30); consumer protection among various industries (14); consumer protection in life insurance industry (2); knowledge about life insurance (1); insurance cost differences (1); adequacy of personal life insurance (1); types of life insurance (3); factors determining policy cost (10); physical handicaps (2); life insurance advertising (4); satisfaction with life insurance experiences (1); helpfulness of life insurance agents (1); problems with life insurance (8); need for government regulation (8); personal life insurance agent (1); personal life insurance purchase (1); borrowing on life insurance (5); comparative standard of living (1); security of financial future (1); impact of inflation on life insurance (1); discussing inflation effects (2); life insurance during increased living costs (1); cost of health care (1); groups reducing health care costs (6); satisfaction with health care (1); satisfaction with various statements (7); knowledge of national health insurance (1); favorability of nationwide health insurance (1); government healthcare (1); types of insurance covered by (1); automobile ownership (1); uninsured vehicles (2); major automobile expenses (2); assigned risk plan (1); auto insurance cost (1); knowledge of auto insurance (1); ways to learn about auto insurance (9); articles on auto insurance (1); price quotation (1); budget problem of auto insurance (1); appropriate cost of auto insurance (1); lowering auto insurance costs (12); reasons for increasing auto insurance costs (22); difficulty getting auto insurance (2); auto insurance renewal (1); higher risk drivers (5).
Kann man (intime) Lebensformen bewerten? Eine Reflexion im Anschluss an Jürgen Habermas und Rahel Jaeggi
Creators: name: Laux, Bernhard
Publisher: name: Universität Regensburg
Year: 2017
Subjects: subject: Ethik; Lebensformen; Habermas; Jaeggi; Koppetsch; Intimität; Ehe; Partnerschaft; Paarbeziehungen; Politik; Recht; immanente Kritik; Lebensformenpolitik;
subject: 230 Theologie, Christentum
subject: 300 Sozialwissenschaften, Soziologie

description: In der Frage der Bewertbarkeit von Lebensformen scheint sich die unangenehme Alternative aufzutun, entweder in »ethischer Enthaltsamkeit« auf eine kritische Reflexion verzichten zu müssen oder eine partikulare ethische Setzung als Bezugspunkt auszuzeichnen – mit Gefahren bis hin zur »Sittendiktatur«. Unter Bezugnahme auf die zunächst als Gegenpositionen erscheinenden Ansätze von Habermas und Jaeggi wird versucht, ein differenzierteres Bild zu gewinnen. Die Analyse führt zum Ergebnis, dass Jaeggi eine ertragreiche Position zur Kritik von Lebensformen vorstellt, die aber ethisch selbst enthaltsam ist und eher moralisch grundiert erscheint. In mancherlei Hinsicht ist sie mit Habermas’ Ansatz verträglich und führt im Blick auf den politisch-rechtlichen Umgang mit Lebensformen zu ähnlichen Konsequenzen. Regarding the assessability of different forms of life two unpleasant alternatives seem to emerge: Either to renounce from any kind of critical reflection as a form of ›ethical abstinence‹ or using particular cultural values as a reference – including risks up to a morality police as the worst case. With reference to the initially opposed positions of Habermas and Jaeggi it is attempet to draw a differentiated picture. The analyses results in the conclusion that Jaeggi introduces a fruitful position regarding the critics on different forms of life which in itself is ethically abstinent and appears to be morally grounded. In some aspects, it is compatible with Habermas’ approach and leads to similar consequences with respect to political and legal treatment of different forms of life.
Observation of B+ -> p Lambdabar gamma
Creators: name: Lee, Y. J.
name: Wang, M. -Z.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We report the first observation of the radiative hyperonic B decay B+ -> p Lambdabar gamma, using a 140 fb^{-1} data sample recorded on the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric energy e+e- collider. The measured branching fraction is B(B+ -> p Lambdabar gamma) = (2.16 ^{+0.58}_{-0.53} \pm 0.20) \times 10^{-6}. We examine its M_pLambdabar distribution and observe a peak near threshold. This feature is expected by the short-distance b -> s gamma transition. A search for B+ -> p Sigmabar gamma yields no significant signal and we set a 90% confidence-level upper limit on the branching fraction of B(B+ -> p Sigmabar gamma) < 4.6 \times 10^{-6}.
description: 11 pages, 3 figures, 1 table (update of hep-ex/0409009 for journal submission)
Optimal Metric Search Is Equivalent to the Minimum Dominating Set Problem
Creators: name: Hetland, Magnus Lie
Publisher: name: arXiv
Year: 2020
Subjects: subject: Data Structures and Algorithms (cs.DS)
subject: FOS: Computer and information sciences

description: In metric search, worst-case analysis is of little value, as the search invariably degenerates to a linear scan for ill-behaved data. Consequently, much effort has been expended on more nuanced descriptions of what performance might in fact be attainable, including heuristic baselines like the AESA family, as well as statistical proxies such as intrinsic dimensionality. This paper gets to the heart of the matter with an exact characterization of the best performance actually achievable for any given data set and query. Specifically, linear-time objective-preserving reductions are established in both directions between optimal metric search and the minimum dominating set problem, whose greedy approximation becomes the equivalent of an oracle-based AESA, repeatedly selecting the pivot that eliminates the most of the remaining points. As an illustration, the AESA heuristic is adapted to downplay the role of previously eliminated points, yielding some modest performance improvements over the original, as well as its younger relative iAESA2.
Decline of cognitive and behavioral functions in amyotrophic lateral sclerosis: a longitudinal study
Creators: name: Bersano, Enrica
name: Sarnelli, Maria Francesca
name: Solara, Valentina
name: Iazzolino, Barbara
name: Peotta, Laura
name: Marchi, Fabiola De
name: Facchin, Alessio P.
name: Moglia, Cristina
name: Canosa, Antonio
name: Calvo, Andrea
name: Chiò, Adriano
name: Mazzini, Letizia
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Medicine
subject: Neuroscience
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: Hematology

description: Background: A cognitive impairment, ranging from frontotemporal dementia (FTD) to milder forms of dysexecutive or behavioral dysfunction, is detected in 30–50% of patients affected by amyotrophic lateral sclerosis (ALS) at diagnosis. Such condition considerably influences the prognosis, and possibly impacts on the decision-making process with regards to end-of-life choices. The aim of our study is to examine the changes of cognitive and behavioral impairment in a large population of ALS from the time of diagnosis to a 6-month follow-up (IQR 5.5–9.0 months), and to examine to what extent the progression of cognitive impairment affects survival time and rate of disease progression. Methods: We recruited 146 ALS patients classified according to revised criteria of ALS and FTD spectrum disorder. In a multidisciplinary setting, during two subsequent visits we examined clinical features with ALSFRS-r score, FVC% and BMI, and cognitive status with an extensive neuropsychological evaluation. Results: At second examination, one-third of patients showed a worsening of cognitive impairment, namely 88% of ALSbi, 27% of ALSci, 40% of ALScbi, and, interestingly, also 24% of cognitive normal ALS developed a significant cognitive dysfunction. We find that those who changed their cognitive status presented a lower ALSFRS-r score at t1 and a shorter survival time compared to those who did not change, regardless of the type of cognitive impairment. Conclusion: We show how cognitive disorders in ALS patients can not only be present at diagnosis, but also manifest during disease and influence the progression of motor deficit and the prognosis.
Anisotropic gaseous models of tidally limited star clusters -- comparison with other methods
Creators: name: Spurzem, R.
name: Giersz, M.
name: Takahashi, K.
name: Ernst, A.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present new models of the evolution and dissolution of star clusters evolving under the combined influence of internal relaxation and external tidal fields, using the anisotropic gaseous model based on the Fokker-Planck approximation, and a new escaper loss cone model. This model borrows ideas from loss cones of stellar distributions near massive black holes, and describes physical processes related to escaping stars by a simple model based on two timescales and a diffusion process. We compare our results with those of direct $N$-body models and of direct numerical solutions of the orbit-averaged Fokker-Planck equation. For this comparative study we limit ourselves to idealized single point mass star clusters, in order to present a detailed study of the physical processes determining the rate of mass loss, core collapse and other features of the system's evolution. With the positive results of our study the path is now open in the future to use the computationally efficient gaseous models for future studies with more realism (mass spectrum, stellar evolution).
description: 13 pages, 14 figures, added two figures, updated conclusion and discussion, accepted for publication in MNRAS
On effects of regular S=1 dilution of S=1/2 antiferromagnetic Heisenberg chains by a quantum Monte Carlo simulation
Creators: name: Jin, Fengping
name: Xu, Zhaoxin
name: Ying, Heping
name: Zheng, Bo
Publisher: name: arXiv
Year: 2005
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The effects of regular S=1 dilution of S=1/2 isotropic antiferromagnetic chain are investigated by the quantum Monte Carlo loop/cluster algorithm. Our numerical results show that there are two kinds of ground-state phases which alternate with the variation of $S^1=1$ concentration. When the effective spin of a unit cell is half-integer, the ground state is ferrimagnetic with gapless energy spectrum and the magnetism becomes weaker with decreasing of the $S^1$ concentration $ρ= 1/M$. While it is integer, a non-magnetic ground state with gaped spectrum emerges and the gap gradually becomes narrowed as fitted by a relation of $Δ\approx 1.25\sqrtρ$.
description: 6 pages, 9 figures
HÁBITOS DE CONSUMO E ATRIBUTOS VALORIZADOS NA COMPRA DE LEITE PELO PÚBLICO DA TERCEIRA IDADE
Creators: name: Magdalena, Hechrisson Zanforlin
name: Scare, Roberto Fava
name: Casanova, Anna Carolina Pirani
name: Magdalena, Hechrisson Zanforlin
name: Scare, Roberto Fava
name: Casanova, Anna Carolina Pirani
Publisher: name: Unknown
Year: 2008
Subjects: subject: Food Consumption/Nutrition/Food Safety
subject: leite
subject: terceira idade
subject: comportamento de compra
subject: milk
subject: elderly people
subject: consumer behavior

description: Devido às previsões de envelhecimento da população brasileira para os próximos anos e a importância da cadeia produtiva do leite dentro do agronegócio brasileiro, esse trabalho buscou identificar os atributos mais valorizados pelos idosos bem como os seus hábitos de consumo do leite, além de tentar de verificar a demanda por um produto específico para sua faixa etária. Foram entrevistadas 100 pessoas da terceira idade, em dois centros de convivência sendo, um particular, e outro mantido pela prefeitura da cidade de Campo Grande-MS. Os hábitos mais importantes detectados foram: a maioria dos idosos toma leite todo dia, compra o produto em supermercados e prefere as embalagens longa vida. Além disso, a qualidade aparece como principal atributo decisivo na hora da compra, é revelado um grande interesse por um produto destinado à eles, preferência por adição de cálcio e disposição para pagar um pouco a mais por um produto diferenciado. Tais dados mostram que existe um mercado potencial para um produto destinado aos mais velhos e também que há interesse dos mesmos em um produto como este.----------------------------------------------------Due to the forecast of aging of the Brazilian population for the next few years and to the importance of the productive chain of milk within the Brazilian agribusiness, this article seek to identify the attributes most valued by elderly people and their milk consumption habits, in addition to trying to verify the demand for a particular product in their age. 100 elderly people were interviewed, in two nursing homes, a private one, and another maintained by the municipality of the city of Campo Grande, MS. The most important habits were detected: the majority of the elderly drinks milk every day, buys the product in supermarkets and prefers the “longa vida” packaging. Moreover, the quality seems to be the decisive attribute in the moment of purchase. It was revealed that they have a great interest for products for their age, with the addition of calcium and they are willing to pay a little more for a different product. These results show that there is a potential market for a product designed for elderly people and also that they have the same interest in a product like that.
Effective Vortex Mass from Microscopic Theory
Creators: name: Han, Jung Hoon
name: Kim, June Seo
name: Kim, Min Jae
name: Ao, Ping
Publisher: name: arXiv
Year: 2004
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We calculate the effective mass of a single quantized vortex in the BCS superconductor at finite temperature. Based on effective action approach, we arrive at the effective mass of a vortex as integral of the spectral function $J(ω)$ divided by $ω^3$ over frequency. The spectral function is given in terms of the quantum-mechanical transition elements of the gradient of the Hamiltonian between two Bogoliubov-deGennes (BdG) eigenstates. Based on self-consistent numerical diagonalization of the BdG equation we find that the effective mass per unit length of vortex at zero temperature is of order $m (k_f ξ_0)^2$ ($k_f$=Fermi momentum, $ξ_0$=coherence length), essentially equaling the electron mass displaced within the coherence length from the vortex core. Transitions between the core states are responsible for most of the mass. The mass reaches a maximum value at $T\approx 0.5 T_c$ and decreases continuously to zero at $T_c$.
description: Supercedes prior version, cond-mat/9903125
CONSTRUCCIÓN SOCIAL DE CONCEPTOS: POSICIONES DE DIFERENTES ACTORES DE LA CADENA PRODUCTIVA PORCINA PARTICIPANTES EN ARENAS LOCALES
Creators: name: Trentin, Iran Carlos Lovis
name: Villaberde, Maria
name: Pereira, F.
name: Sabanes, Leandro
name: Martinez, R.
name: Trentin, Iran Carlos Lovis
name: Villaberde, Maria
name: Pereira, F.
name: Sabanes, Leandro
name: Martinez, R.
Publisher: name: Unknown
Year: 2008
Subjects: subject: Environmental Economics and Policy
subject: Livestock Production/Industries
subject: Cuestión ambiental
subject: posiciones sociale
subject: percepciones
subject: agricultura familiar
subject: ocial positions. Preceptions- Familiar Agriculture

description: La cuestión ambiental, la sustentabilidad, una producción de alimentos más sanos son temas que cuentan con una universalidad conceptual, pero también dependen de disputas locales alcanzando así una universalidad social construida. Entender las posiciones sociales de los diferentes actores involucrados en la cadena productiva porcina permitirá identificar un contexto especifico en el cual se dan las diferentes visiones productivas que influyen en las acciones de los agricultores familiares. Las “arenas” constituyen escenarios donde los diferentes actores no solo confrontan sus diferentes recurso argumentativos sino que llevan adelante sus acciones. En estos escenarios locales algunos actores pueden influir en la posición de otros. Así, cuando los agricultores plantean sus posiciones a cerca de producir de manera diferente hacen referencia a otros actores que participan en la cadena productiva, el estado, compradores, vendedores. Obj: analizar las posiciones sociales de los diferentes actores que intervienen en la cadena productiva porcina, para profundizar el conocimiento de percepciones de agricultores familiares con relación a calidad del producto final y resultados ambientales de su actividad. Utilizando distintos recursos analíticos, entender que guia para pensar o actuar de determinada manera en relación a una cuestión.---------------------------------------------Though the environmental issue, the susteintability, and the production of healtly food are topics of universal appeal, they are also issues of a social nature locally constructed. The understanding of the social positions of the diferent actors involved in the swine- production chain will allow the identification of an especific context within which the different productive visions that influence the actions of the agriculture farmer develop . The “arenas” are settings where the different actors not only argue about their positons but also perform their actions. In these local scenarios, some actors exercise their influence upon other actors. The aim of this paper is, in the first place, to analyse the social positions of the different actors involved in the swine-production chain in order to gain a better understanding and insights into the agriculture farmers in relation to the quality of the final product and resulting environmental changes. Secondly, through analytic procedures, try to understand the underlying motivations that lead to the adoption of specific behaviours.
Synthesis of fluorine-containing prenylated benzophenones
Creators: name: Vuyisa Mzozoyana
name: Heerden, Fanie R. Van
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biophysics
subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: Developmental Biology
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: In this study, an effective route to synthesize fluorine-containing prenylated benzophenones was developed. Friedel–Crafts acylation and electrophilic aromatic substitution reactions were the key reactions of this synthesis to achieve these fluorinated prenylated benzophenones. The use of DBU in the prenylation step achieved only the C-prenylated benzophenones, whereas K2CO3 produced the C- and O-prenylated benzophenones.
Biomechanics of turning manoeuvres in Steller sea lions (Eumetopias jubatus)
Creators: name: Cheneval, Olivier
Publisher: name: University of British Columbia
Year: 2009

description: Otariids such as the Steller sea lion (Eumetopias jubatus) are among the most manoeuvrable of marine mammals (expressed as a minimum turning radius and speed during manoeuvres). They evolved in terrestrial and aquatic environments that are structurally complex, and feed on prey that are an order of magnitude smaller than themselves. Compared to other aquatic organisms, Steller sea lions have an unstable body design and are presumed to invoke swimming techniques that reflect their need to be highly manoeuvrable. Detailed information was experimentally obtained about the turning techniques employed by otariids through jointly analysing kinematic and kinetic parameters measured from video recordings of three captive Steller sea lions. Centripetal force and thrust production were determined by examining body movements throughout a series of turns. Results showed that most of the thrust was produced during the power phase of the stroke cycle of the pectoral flippers. As opposed to previous findings, very little or no thrust was generated during initial abduction of the pectoral flippers and during the final drag-based paddling style of the stroke cycle. Peak of the thrust force was reached halfway through the power phase, while the centripetal force reached its maximum value at the beginning of the power phase. Kinematic aspects of the manoeuvres changed with the tightness of the turns and the initial velocities. The degree of dorsal flexion of the body changed with the turning radius and the degree of flipper abduction varied with swimming speed. However, the general manoeuvring technique and turning sequence remained the same in all the recorded manoeuvres. Contrasting the turning performance of the Steller sea lion with a simple dynamic model of unpowered manoeuvres in aquatic animals showed significant departures from model predictions due to the hydrodynamic effects of body movements. Overall, the turning sequence of the Steller sea lion was found to be very consistent, and their manoeuvrability was found to come from their ability to vary the duration and intensity of movements within the turning sequence.
What are the Enduring Effects of Fertilizer Subsidy Programs on Recipient Farm Households? Evidence from Malawi
Creators: name: Ricker-Gilbert, Jacob
name: Jayne, Thomas S.
name: Ricker-Gilbert, Jacob
name: Jayne, Thomas S.
Publisher: name: Unknown
Year: 2011
Subjects: subject: International Development
subject: Political Economy
subject: fertilizer subsidies
subject: Malawi
subject: Sub-Saharan Africa
subject: endogeneity
subject: panel data

description: This article uses panel data from Malawi to measure how receiving subsidized fertilizer in the current year and in previous years affects several different measures of household well-being. Our model accounts for potential endogeneity of subsidized fertilizer due to the non-random way in which it is distributed to recipients. Results indicate that receiving subsidized fertilizer in a given year raises maize and tobacco production as well as the net value of rainy-season crop production in that year. Receipt of subsidized fertilizer over the prior three seasons also has a significant positive effect on current year maize production. However, receipt of subsidized fertilizer in the prior three consecutive years has no discernable effect on the net-value of total crop production in the current year. Moreover, we find no evidence that prior or current receipt of subsidized fertilizer contributes to off-farm or total household income. Lastly, we find no significant evidence that receiving subsidized fertilizer raises farmers’ livestock and durable asset wealth. Potential general equilibrium benefits resulting from the subsidy program cannot be discounted, but the direct comparison of recipient and non-recipient households indicates that enduring effects of the subsidy beyond the year of receipt apply to maize production only and not to overall household income or asset wealth.
description: Replaced with revised version of paper 08/23/11.
Profile Matching Across Online Social Networks
Creators: name: Halimi, Anisa
name: Ayday, Erman
Publisher: name: arXiv
Year: 2020
Subjects: subject: Social and Information Networks (cs.SI)
subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: In this work, we study the privacy risk due to profile matching across online social networks (OSNs), in which anonymous profiles of OSN users are matched to their real identities using auxiliary information about them. We consider different attributes that are publicly shared by users. Such attributes include both strong identifiers such as user name and weak identifiers such as interest or sentiment variation between different posts of a user in different platforms. We study the effect of using different combinations of these attributes to profile matching in order to show the privacy threat in an extensive way. The proposed framework mainly relies on machine learning techniques and optimization algorithms. We evaluate the proposed framework on three datasets (Twitter - Foursquare, Google+ - Twitter, and Flickr) and show how profiles of the users in different OSNs can be matched with high probability by using the publicly shared attributes and/or the underlying graphical structure of the OSNs. We also show that the proposed framework notably provides higher precision values compared to state-of-the-art that relies on machine learning techniques. We believe that this work will be a valuable step to build a tool for the OSN users to understand their privacy risks due to their public sharings.
description: arXiv admin note: substantial text overlap with arXiv:1711.01815
The Weyl-Brandt groupoid of a Nichols algebra of diagonal type
Creators: name: Heckenberger, I.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Quantum Algebra (math.QA)
subject: FOS: Mathematics
subject: 17B37, 16W35

description: The theory of Nichols algebras of diagonal type is known to be closely related to that of semisimple Lie algebras. In this paper the connection between both theories is made closer. For any Nichols algebra of diagonal type invertible transformations are introduced, which remind one of the action of the Weyl group on the root system associated to a semisimple Lie algebra. They give rise to the definition of a Brandt groupoid. As an application an alternative proof of classification results of Rosso, Andruskiewitsch, and Schneider is obtained without using any technical assumptions on the braiding. Key Words: Brandt groupoid, Hopf algebra, pseudo-reflections, Weyl group
description: LaTeX2e, 18 pages
Web-based surveys and sample frame bias in choice experiment
Creators: name: Tait, Peter R.
name: Bicknell, Kathryn
name: Cullen, Ross
name: Tait, Peter R.
name: Bicknell, Kathryn
name: Cullen, Ross
Publisher: name: Unknown
Year: 2009
Subjects: subject: Environmental Economics and Policy
subject: Research Methods/ Statistical Methods
subject: web-based surveys
subject: sample frame bias
subject: choice experiment

description: Researchers are seeking effective, low cost means of gathering high quality data. Technological advancements offer new avenues for achieving this objective. Web based surveys are relatively common outside the economics discipline however applied non-market valuation practitioners have been slow to adopt this modernisation in survey methodology. The non-random exclusion of individuals from the sample frame is often cited as a major problem with web-based surveying. This paper presents a comparison of data from two choice experiment survey modes, traditional mail-and-return and web-based. The socio-demographic composition of the samples is significantly different for half the variables considered. Poe tests reveal that there are significant differences in wtp for ecological improvements with the web sample having higher mean wtp. There are no differences detected for all other attribute wtp estimates. Poe tests also reveal that there are no differences detected for compensating surplus estimates over 15 scenarios. A pooled model with a dummy variable equal to 1 if respondent uses web mode is specified and is found to be negative and statistically significant at a 1% level.