cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Weak Models of Distributed Computing, with Connections to Modal Logic
Creators: name: Hella, Lauri
name: Järvisalo, Matti
name: Kuusisto, Antti
name: Laurinharju, Juhana
name: Lempiäinen, Tuomo
name: Luosto, Kerkko
name: Suomela, Jukka
name: Virtema, Jonni
Publisher: name: arXiv
Year: 2012
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences

description: This work presents a classification of weak models of distributed computing. We focus on deterministic distributed algorithms, and study models of computing that are weaker versions of the widely-studied port-numbering model. In the port-numbering model, a node of degree d receives messages through d input ports and sends messages through d output ports, both numbered with 1,2,...,d. In this work, VVc is the class of all graph problems that can be solved in the standard port-numbering model. We study the following subclasses of VVc: VV: Input port i and output port i are not necessarily connected to the same neighbour. MV: Input ports are not numbered; algorithms receive a multiset of messages. SV: Input ports are not numbered; algorithms receive a set of messages. VB: Output ports are not numbered; algorithms send the same message to all output ports. MB: Combination of MV and VB. SB: Combination of SV and VB. Now we have many trivial containment relations, such as SB \subseteq MB \subseteq VB \subseteq VV \subseteq VVc, but it is not obvious if, for example, either of VB \subseteq SV or SV \subseteq VB should hold. Nevertheless, it turns out that we can identify a linear order on these classes. We prove that SB \subsetneq MB = VB \subsetneq SV = MV = VV \subsetneq VVc. The same holds for the constant-time versions of these classes. We also show that the constant-time variants of these classes can be characterised by a corresponding modal logic. Hence the linear order identified in this work has direct implications in the study of the expressibility of modal logic. Conversely, one can use tools from modal logic to study these classes.
description: 1 + 40 pages, 9 figures
MPEC 2025-F219 : 2025 FV13
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2025
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2025 FV13

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Distributed Control of Positive Systems
Creators: name: Rantzer, Anders
Publisher: name: arXiv
Year: 2012
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics

description: A system is called positive if the set of non-negative states is left invariant by the dynamics. Stability analysis and controller optimization are greatly simplified for such systems. For example, linear Lyapunov functions and storage functions can be used instead of quadratic ones. This paper shows how such methods can be used for synthesis of distributed controllers. It also shows that stability and performance of such control systems can be verified with a complexity that scales linearly with the number of interconnections. Several results regarding scalable synthesis and verfication are derived, including a new stronger version of the Kalman-Yakubovich-Popov lemma for positive systems. Some main results are stated for frequency domain models using the notion of positively dominated system. The analysis is illustrated with applications to transportation networks, vehicle formations and power systems.
Additional file 2 of Selection, optimization and compensation strategies and their relationship with well-being and impulsivity in early, middle and late adulthood in a Polish sample
Creators: name: Zając-Lamparska, Ludmiła
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy

description: Additional file 2. Fig. S1 : The procedure of the SOC48-PL questionnaire development. Graphical illustration of the procedure of development of the Polish version of the SOC-Questionnaire, including translation and back-translation from the two original language versions (English and German) and evaluation by competent judges.
»Wir gewöhnen uns an Automaten!«. Mälzel, Hindemith und die mechanische Musik
Creators: name: Wackerbauer, Michael
Publisher: name: Universität Regensburg
Year: 2023
Subjects: subject: 780 Musik

description: At the beginning of the 19th century, Mälzel explored the limits of sound simulation and automation with his Panharmonicons, powerful orchestrions, and caused a sensation. It was not until about a century later that there were significant leaps in technological development with punched tape technology and the early electric musical instruments, which were made artistically productive, especially from the 1920s onwards. In both periods, there was a broad discussion about the music for such music machines, which included aesthetic, practical, sociological, and economic aspects. As is shown by the handling of Mälzel’s music automatons and the trend-setting events on mechanical musical instruments at the Donaueschingen Music Festival curated by Hindemith, expectations, ideas, and visions were attached to these devices across the epochs, which fundamentally questioned the importance of humans as sound creators assigning them different roles.
Additional file 3 of Selection, optimization and compensation strategies and their relationship with well-being and impulsivity in early, middle and late adulthood in a Polish sample
Creators: name: Zając-Lamparska, Ludmiła
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy

description: Additional file 3. Table S1 : Reliability statistics of the SOC48-PL and their individual scales. Reliability coefficients (McDonald's ω, Greatest lower bound, Guttman's λ6, and Cronbach's α with 95% Confidence Interval) of the Polish version of the SOC questionnaire and its individual scales in the whole study sample and age groups of early, middle and late adulthood.
Continuous-Variable Quantum Key Distribution using Thermal States
Creators: name: Weedbrook, Christian
name: Pirandola, Stefano
name: Ralph, Timothy C.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We consider the security of continuous-variable quantum key distribution using thermal (or noisy) Gaussian resource states. Specifically, we analyze this against collective Gaussian attacks using direct and reverse reconciliation where both protocols use either homodyne or heterodyne detection. We show that in the case of direct reconciliation with heterodyne detection, an improved robustness to channel noise is achieved when large amounts of preparation noise is added, as compared to the case when no preparation noise is added. We also consider the theoretical limit of infinite preparation noise and show a secure key can still be achieved in this limit provided the channel noise is less than the preparation noise. Finally, we consider the security of quantum key distribution at various electromagnetic wavelengths and derive an upper bound related to an entanglement-breaking eavesdropping attack and discuss the feasibility of microwave quantum key distribution.
description: 12 pages, 11 figures. Updated from published version with some minor corrections
Additional file 2: of CDetection: CRISPR-Cas12b-based DNA detection with sub-attomolar sensitivity and single-base specificity
Creators: name: Teng, Fei
name: Guo, Lu
name: Cui, Tongtong
name: Wang, Xin-Ge
name: Xu, Kai
name: Gao, Qingqin
name: Zhou, Qi
name: Li, Wei
Publisher: name: figshare
Year: 2019
Subjects: subject: Space Science
subject: Microbiology
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Biological Sciences not elsewhere classified
subject: Mathematical Sciences not elsewhere classified
subject: Developmental Biology
subject: Plant Biology

description: Table S1. Nucleic acids used in this study. Table S2. The components of buffers tested for Cas12b-mediated DNA detection in this study. (PDF 293 kb)
Producing Gelatin Nanoparticles as Delivery System for Bovine Serum Albumin
Creators: name: Azimi, Bahareh
name: Nourpanah, Parviz
name: Rabiee, Mohammad
name: Arbab, Shahram
Publisher: name: the Pasteur Institute of Iran
Year: 1996
Subjects: subject: Basic Sciences

description: Iranian Biomedical Journal (IBJ); ISSN 1028-852X
Higher dimensional Reidemeister torsion invariants for cusped hyperbolic 3-manifolds
Creators: name: Menal-Ferrer, Pere
name: Porti, Joan
Publisher: name: arXiv
Year: 2011
Subjects: subject: Geometric Topology (math.GT)
subject: Algebraic Topology (math.AT)
subject: FOS: Mathematics

description: For an oriented finite volume hyperbolic 3-manifold M with a fixed spin structure η, we consider a sequence of invariants {τ_n(M; η)}. Roughly speaking, {τ_n(M; η)} is the Reidemeister torsion of M with respect to the representation given by the composition of the lift of the holonomy representation defined by η, and the n-dimensional, irreducible, complex representation of SL(2,C). In the present work, we focus on two aspects of this invariant: its asymptotic behavior and its relationship with the complex-length spectrum of the manifold. Concerning the former, we prove that for suitable spin structures, log(τ_n(M; η)) grows as -n^2 Vol(M)/4π, extending thus the result obtained by W. Mueller for the compact case. Concerning the latter, we prove that the sequence {τ_n(M; η)} determines the complex-length spectrum of the manifold up to complex conjugation.
Collective behavior in the spatial spreading of obesity
Creators: name: Gallos, Lazaros K.
name: Barttfeld, Pablo
name: Havlin, Shlomo
name: Sigman, Mariano
name: Makse, Hernan A.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Social and Information Networks (cs.SI)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Non-communicable diseases like diabetes, obesity and certain forms of cancer have been increasing in many countries at alarming levels. A difficulty in the conception of policies to reverse these trends is the identification of the drivers behind the global epidemics. Here, we implement a spatial spreading analysis to investigate whether diabetes, obesity and cancer show spatial correlations revealing the effect of collective and global factors acting above individual choices. We adapt a theoretical framework for critical physical systems displaying collective behavior to decipher the laws of spatial spreading of diseases. We find a regularity in the spatial fluctuations of their prevalence revealed by a pattern of scale-free long-range correlations. The fluctuations are anomalous, deviating in a fundamental way from the weaker correlations found in the underlying population distribution. This collective behavior indicates that the spreading dynamics of obesity, diabetes and some forms of cancer like lung cancer are analogous to a critical point of fluctuations, just as a physical system in a second-order phase transition. According to this notion, individual interactions and habits may have negligible influence in shaping the global patterns of spreading. Thus, obesity turns out to be a global problem where local details are of little importance. Interestingly, we find the same critical fluctuations in obesity and diabetes, and in the activities of economic sectors associated with food production such as supermarkets, food and beverage stores--- which cluster in a different universality class than other generic sectors of the economy. These results motivate future interventions to investigate the causality of this relation providing guidance for the implementation of preventive health policies.
description: 9 pages, 4 figures
Additional file 4 of Selection, optimization and compensation strategies and their relationship with well-being and impulsivity in early, middle and late adulthood in a Polish sample
Creators: name: Zając-Lamparska, Ludmiła
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy

description: Additional file 4. Table S2: Statistics for items of individual scales based on reliability analysis. Item-scale correlation coefficients and Cronbach's αwhen item is deleted for each item of particular SOC48-PL questionnaire scales
Being nice with the experimenter?
Creators: name: Giannetti, Caterina
name: Orsini, Raimondello
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2013
Subjects: SECS-P/01 Economia politica

description: This paper investigates the determinants of reciprocity towards the experimenters in the lab under a flat-wage scheme. We find that personality attributes – such as agreeableness – help predict the behaviour of the subjects. We additionally propose and assess a general measure of reciprocity.
Poisson-Dirichlet statistics for the extremes of a log-correlated Gaussian field
Creators: name: Arguin, Louis-Pierre
name: Zindy, Olivier
Publisher: name: arXiv
Year: 2012
Subjects: subject: Probability (math.PR)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We study the statistics of the extremes of a discrete Gaussian field with logarithmic correlations at the level of the Gibbs measure. The model is defined on the periodic interval $[0,1]$, and its correlation structure is nonhierarchical. It is based on a model introduced by Bacry and Muzy [Comm. Math. Phys. 236 (2003) 449-475] (see also Barral and Mandelbrot [Probab. Theory Related Fields 124 (2002) 409-430]), and is similar to the logarithmic Random Energy Model studied by Carpentier and Le Doussal [Phys. Rev. E (3) 63 (2001) 026110] and more recently by Fyodorov and Bouchaud [J. Phys. A 41 (2008) 372001]. At low temperature, it is shown that the normalized covariance of two points sampled from the Gibbs measure is either $0$ or $1$. This is used to prove that the joint distribution of the Gibbs weights converges in a suitable sense to that of a Poisson-Dirichlet variable. In particular, this proves a conjecture of Carpentier and Le Doussal that the statistics of the extremes of the log-correlated field behave as those of i.i.d. Gaussian variables and of branching Brownian motion at the level of the Gibbs measure. The method of proof is robust and is adaptable to other log-correlated Gaussian fields.
description: Published in at http://dx.doi.org/10.1214/13-AAP952 the Annals of Applied Probability (http://www.imstat.org/aap/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Effect of milk replacer feeding program on performance of Belgian Blue double-muscled rearing calves
Creators: name: Fiems, Leo O.
name: De Boever, Johan L.
name: Vanacker, José M.
Publisher: name: Leibniz Institute for Farm Animal Biology (FBN), Dummerstorf, Germany
Year: 2013
Subjects: subject: 570 Life sciences

description: Archiv Tierzucht 56 (2013) 105, 1039-1051; ISSN 0003-9438
On the generalized Davenport constant and the Noether number
Creators: name: Cziszter, K.
name: Domokos, M.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Representation Theory (math.RT)
subject: Commutative Algebra (math.AC)
subject: FOS: Mathematics
subject: 13A50 (Primary) 11B75, 13A02 (Secondary)

description: Known results on the generalized Davenport constant related to zero-sum sequences over a finite abelian group are extended to the generalized Noether number related to the rings of polynomial invariants of an arbitrary finite group. An improved general upper bound is given on the degrees of polynomial invariants of a non-cyclic finite group which cut out the zero vector.
description: 14 pages
Active damping of machine tools with magnetic actuators
Creators: name: Chen, Fan
Publisher: name: University of British Columbia
Year: 2014

description: Flexible parts and tools are often found in machining operations, such as boring large cylinders, or turning long and slender shafts. The excessive flexibility of such tool or shaft may cause static deflection, forced vibration, and even chatter vibrations, which result in poor surface finish, tool breakage, and even damage to the machine, and thus become the main constraints in achieving higher productivity. This thesis presents an active damping solution to such problems, by using a novel three degrees of freedom linear magnetic actuator, which can increase the damping and stiffness of flexible structures in machining. The actuator is comprised of four identical magnetic actuating units; the magnetic force output of each actuating unit is linearized with regard to the input current by biasing magnets. Fiber optic sensors are integrated into the actuator to measure the displacements of the structure during machining. The magnetic actuator is used for three purposes: active damping of boring bar, increasing its static stiffness, and monitoring cutting forces based on the control current signals and fiber optic displacement sensor signals. The active damping is achieved by controlling the magnetic force as a function of measured vibrations. Three different types of controllers (loop shaping controller, Derivative-Integral controller, and H∞ controllers) have been developed to actively damp the displacements of a flexible boring bar during machining tests. The actuator can deliver 248 N force up to 850 Hz, and 107 N force up to 2000 Hz which is limited by the current amplifier used in the experimental setup. The cutting force is estimated through a Kalman filter, which was experimentally verified to be effective up to 550 Hz. Both the dynamic stiffness and static stiffness of the boring bar have been increased considerably with the designed magnetic actuator, leading to a significant increase in the chatter-free material removal rates. Although the proposed magnetic actuator is demonstrated for active damping of a slender boring bar in the thesis, the proposed magnetic actuator principle can be applied to suppress vibrations of rotating shafts, long boring bars and flexible structures in machine tools and other machineries.
The use of sexual activity measurements to assess ejaculatory performance of boars
Creators: name: Kondracki, Stanisław
name: Iwanina, Maria
name: Wysokińska, Anna
name: Górski, Krzysztof
Publisher: name: Leibniz Institute for Farm Animal Biology (FBN), Dummerstorf, Germany
Year: 2013
Subjects: subject: 570 Life sciences

description: Archiv Tierzucht 56 (2013) 106, 1052-1059; ISSN 0003-9438
Additional file 5 of Selection, optimization and compensation strategies and their relationship with well-being and impulsivity in early, middle and late adulthood in a Polish sample
Creators: name: Zając-Lamparska, Ludmiła
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy

description: Additional file 5. Table S3: Pearson's correlations coefficients between the results obtained during the first test and retest in particular items of the SOC48-PL questionnaire. Correlation coefficients (Pearson's r) for individual SOC48-PL questionnaire items obtained in the test-retest reliability evaluation procedure
Calcium phosphate silicate cement for risedronate drug delivery
Creators: name: Gong, Tianxing
Publisher: name: University of British Columbia
Year: 2016

description: The effectiveness of bone cements in treating bone fracture is impaired by osteoporosis, which not only delays the osseointegration but also compromises the stability of implants. As a result, further fractures are not unusual after bone cement implantation in osteoporotic patients. This dissertation reports the investigation of the novel calcium phosphate silicate cement (CPSC) as a possible drug delivery system (DDS) for risedronate (RA) to treat osteoporosis and to restore bone fracture. Risedronate belongs to the family of bisphosphonate and, as the 3rd generation of bisphosphonate, can effectively suppress osteoclast activities and treat osteoporosis. In this work, the CPSC material properties were characterized as a function of RA content. High performance liquid chromatography was used to detect RA release profiles from cements and the Higuchi’s Law was employed to explain its release mechanisms. In vitro biocompatibility of RA-added CPSC (CPSC-R) was evaluated by MTT assays, flow cytometry, and real-time polymerase chain reaction. In the tibia implantation model from osteoporotic rabbits, biomarkers, X-rays, computed tomography, histology and PCR arrays were used to evaluate CPSC-R in vivo performance. It has been found that RA greatly affected CPSC setting time and compressive strength in a concentration-dependent manner. It was also found that RA disrupted CPSC hydration and delayed calcium silicate hydrate gel formation. RA was progressively adsorbed onto the unreacted calcium silicate and formed calcium-RA complexes. RA release kinetics from cement was controlled by the implant degradation and was in a good agreement with the theoretical calculations. CPSC-R was biocompatible and improved osteoblast proliferation and differentiation. Biomarker studies showed that CPSC-R significantly reduced osteoclast activities as compared to the sham control (p < 0.05). The radiographic and histological examination demonstrated that CPSC-R improved osseointegration and bone formation, as compared to RA-free CPSC control group. Gene array studies indicated that CPSC-R implants could significantly up-regulate osteogenesis-related gene expressions as compared to the control groups. In conclusion, this study indicates that CPSC is potentially a good Drug Delivery System of RA. The anti-osteoporotic effectiveness of this system could be beneficial in bone fracture treatments for patients who are suffering from osteoporosis.
Additional file 1 of How does air pollution affect urban settlement of the floating population in China? New evidence from a push-pull migration analysis
Creators: name: Zhao, Zhihao
name: Lao, Xin
name: Gu, Hengyu
name: Yu, Hanchen
name: Lei, Ping
Publisher: name: figshare
Year: 2021
Subjects: subject: Sociology
subject: FOS: Sociology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Developmental Biology
subject: Science Policy

description: Additional file 1.
Weyl problem and Casimir effects in spherical shell geometry
Creators: name: Kolomeisky, Eugene B.
name: Zaidi, Hussain
name: Langsjoen, Luke
name: Straley, Joseph P.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mathematical Physics (math-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We compute the generic mode sum that quantifies the effect on the spectrum of a harmonic field when a spherical shell is inserted into vacuum. This encompasses a variety of problems including the Weyl spectral problem and the Casimir effect of quantum electrodynamics. This allows us to resolve several long-standing controversies regarding the question of universality of the Casimir self-energy; the resolution comes naturally through the connection to the Weyl problem. Specifically we demonstrate that in the case of a scalar field obeying Dirichlet or Neumann boundary conditions on the shell surface the Casimir self-energy is cutoff-dependent while in the case of the electromagnetic field perturbed by a conductive shell the Casimir self-energy is universal. We additionally show that an analog non-relativistic Casimir effect due to zero-point magnons takes place when a non-magnetic spherical shell is inserted inside a bulk ferromagnet.
description: 9 pages, minor changes, additional references added, version to be published in Phys. Rev. A
Investigation of stochastic optimization methods for operating reservoirs with snowmelt-dominant local inflows and limited storage capability in British Columbia during the spring freshet
Creators: name: Rasmussen, Ryan
Publisher: name: University of British Columbia
Year: 2014

description: The reservoir operations model developed in this thesis is a stochastic dynamic programming decision support tool for the optimization of the operation of snowmelt-driven reservoirs with small storage flexibility hydropower systems during the spring freshet. The model operates under the objective of maximizing the value of electricity generation through electricity trading over a short-term planning period. Project and watershed data, stochastic inflows, and estimated electricity prices are used to calculate optimal expected turbine release policies over a short-term planning period. Results are used to provide decision support to operators in the form of a daily expected optimal turbine release volume and marginal value of energy of the reservoir. Including stochasticity in the model allows for inflow probabilities, which may not be easily evaluated by an operator, to be reflected in an operation decision. A combination of forecast, historical, and current state of the system data is included in the model to reflect the most up-to-date view of uncertain conditions. Case studies indicate that although operators may deviate from the expected optimal policy to meet other interests and requirements in real-time, the model provides an optimal expected policy during the freshet period and has shown in a case study to increase the value of a single reservoir’s operations by 6% during one three-month freshet period.
Tau Functions and Virasoro Symmetries for Drinfeld-Sokolov Hierarchies
Creators: name: Wu, Chao-Zhong
Publisher: name: arXiv
Year: 2012
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: Mathematical Physics (math-ph)
subject: Representation Theory (math.RT)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: For each Drinfeld-Sokolov integrable hierarchy associated to affine Kac-Moody algebra, we obtain a uniform construction of tau function by using tau-symmetric Hamiltonian densities, moreover, we represent its Virasoro symmetries as linear/nonlinear actions on the tau function. The relations between the tau function constructed in this paper and those defined for particular cases of Drinfeld-Sokolov hierarchies in the literature are clarified. We also show that, whenever the affine Kac-Moody algebra is simply-laced or twisted, the tau functions of the Drinfeld-Sokolov hierarchy coincide with the solutions of the corresponding Kac-Wakimoto hierarchy from the principal vertex operator realization of the affine algebra.
description: 45 pages. Some references are added and typos are corrected
Atomic clock with nuclear transition: current status in TU Wien
Creators: name: Kazakov, G. A.
name: Schreitl, M.
name: Winkler, G.
name: Sterba, J. H.
name: Steinhauser, G.
name: Schumm, T.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: The nucleus of 229Thorium presents a unique isomer state of very low energy and long lifetime, current estimates are around 7.8 eV and seconds to hours respectively. This nuclear transitions therefore is a promising candidate for a novel type of frequency standard and several groups worldwide have set out to investigate this system. Our aim is to construct a "solid state nuclear clock", i.e. a frequency standard where Thorium ions are implanted into Calciumfluoride crystals transparent in vacuum ultraviolet range. As a first step towards an accurate determination of the exact energy and lifetime of this isomer state we perform low-resolution fluorescent spectroscopic measurements.
description: 10 pages, 1 figure; proceeding of conference "Isomers in Nuclear and Interdisciplinary Research", 4-10 July, St. Petersburg, Russia
Additional file 11 of R-Ras subfamily proteins elicit distinct physiologic effects and phosphoproteome alterations in neurofibromin-null MPNST cells
Creators: name: Weber, Shannon M.
name: Brossier, Nicole M.
name: Prechtl, Amanda
name: Barnes, Stephen
name: Wilson, Landon S.
name: Brosius, Stephanie N.
name: Longo, Jody Fromm
name: Carroll, Steven L.
Publisher: name: figshare
Year: 2021
Subjects: subject: Biophysics
subject: Biochemistry
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Physiology
subject: Pharmacology
subject: Science Policy
subject: Immunology
subject: FOS: Clinical medicine
subject: Developmental Biology
subject: Cancer
subject: Computational Biology

description: Additional file 11
Recollements of derived categories I: Exact contexts
Creators: name: Chen, Hongxing
name: Xi, Changchang
Publisher: name: arXiv
Year: 2012
Subjects: subject: Representation Theory (math.RT)
subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics
subject: 16, 18

description: Recollements were introduced originally by Beilinson, Bernstein and Deligne to study the derived categories of perverse sheaves, and nowadays become very powerful in understanding relationship among three algebraic, geometric or topological objects. The purpose of this series of papers is to study recollements in terms of derived module categories and homological ring epimorphisms, and then to apply our results to both representation theory and algebraic K-theory. In this paper we present a new and systematic method to construct recollements of derived module categories. For this aim, we introduce a new ring structure, called the noncommutative tensor product, and give necessary and sufficient conditions for noncommutative localizations which appears often in representation theory, topology and K-theory, to be homological. The input of our machinery is an exact context which can be easily obtained from a rigid morphism that exists in very general circumstances. The output is a recollement of derived module categories of rings in which the noncommutative tensor product of an exact context plays a crucial role. Thus we obtain a large variety of new recollements from commutative and noncommutative localizations, ring epimorphisms and extensions.
description: 43 pages
Cross-correlation analysis of CMB with foregrounds for residuals
Creators: name: Aluri, Pavan K.
name: Rath, Pranati K.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: In this paper, we try to probe whether a clean CMB map obtained from the raw satellite data using a cleaning procedure is sufficiently clean. Specifically we study if there are any foreground residuals still present in the cleaned data using a cross-correlation statistic. Residual contamination is expected to be present, primarily, in the galactic plane due to the high emission from our own galaxy. A foreground mask is applied conventionally to avoid biases in the estimated quantities of interest due to foreground leakage. Here, we map foreground residuals, if present, in the unmasked region i.e., outside a CMB analysis mask. Further locally extended foreground-contaminated regions, found eventually, are studied to understand them better. The few contaminated regions thus identified may be used to slightly extend the available masks to make them more stringent.
description: 9 pages, 6 figures, Accepted in MNRAS
Ökonomische Auswirkungen des Klimawandels auf die niedersächsische Milchproduktion
Creators: name: Martinsohn, Maria
name: Hansen, Heiko
Publisher: name: Bundesministerium für Ernährung, Landwirtschaft und Verbraucherschutz
Year: 2013

description: Die Auswirkungen des Klimawandels auf die Landwirtschaft sind bereits seit mehr als zwei Jahrzehnten ein wichtiger Bestandteil der (agrar-) wissenschaftlichen Forschung. Der Großteil dieser Studien im Bereich der sogenannten Klimafolgenforschung konzentriert sich dabei auf den Ackerbau, für den die Bedeutung des Klimawandels offensichtlich ist. Doch auch in der Tierhaltung führen das Klima bzw. der Klimawandel zu direkten und indirekten Auswirkungen für die Produktion und Wirtschaftlichkeit. Die vorliegende Studie trägt dieser Problematik Rechnung, da sie am Fallbeispiel der Milchproduktion Niedersachsens a) bio-physiologische Veränderungen in der Silageproduktion, wie auch Milchleistungseinbußen durch Hitzestress untersucht, b) die Wirkung von Anpassungsmaßnahmen durch die Landwirte berücksichtigt, c) eine ökonomische Bewertung anführt und d) die betroffenen Akteure integriert.Hierzu wurden Klimadaten eines bias-korrigierten dynamischen sowie eines statistischen Modells in drei bio-physiologische Modelle eingespeist. So wurden Projektionen zu Hitzestress und Erntemengen bei Gras- und Maissilage für das Referenzszenario 1971 bis 2000 und zwei Zukunftsszenarien 2021 bis 2050 und 2071 bis 2100 erreicht. Anhand typischer Milchviehbetriebe ("agri benchmark"-Methodik) wurden in vier verschiedenen Regionen Niedersachsen die Ergebnisse einer ökonomischen Bewertung zugeführt (Veränderung des Betriebsgewinns). Die Validierung und Rückkopplung der einzelnen Prozessschritte erfolgte im Rahmen von Fokusgruppendiskussionen mit Praktikern und Beratern. Zusammenfassend wirkt sich der Klimawandel positiv auf die Milchviehbetriebe aus, was vor allem auf positive Veränderungen beim Maiswachstum zurückzuführen ist. Die ökonomischen Zugewinne sind jedoch marginal, besonders wenn sie, wie von den Landwirten angeregt, mit den Gewinnschwankungen durch die natürliche Variabilität des Wetters verglichen werden.
description: Berichte über Landwirtschaft - Zeitschrift für Agrarpolitik und Landwirtschaft, Band 91, Heft 3, Dezember 2013
Additional file 10 of R-Ras subfamily proteins elicit distinct physiologic effects and phosphoproteome alterations in neurofibromin-null MPNST cells
Creators: name: Weber, Shannon M.
name: Brossier, Nicole M.
name: Prechtl, Amanda
name: Barnes, Stephen
name: Wilson, Landon S.
name: Brosius, Stephanie N.
name: Longo, Jody Fromm
name: Carroll, Steven L.
Publisher: name: figshare
Year: 2021
Subjects: subject: Biophysics
subject: Biochemistry
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Physiology
subject: Pharmacology
subject: Science Policy
subject: Immunology
subject: FOS: Clinical medicine
subject: Developmental Biology
subject: Cancer
subject: Computational Biology

description: Additional file 10
Fleischkonsum und Tierhaltung in der aktuellen gesellschaftsethischen Debatte
Creators: name: Dirscherl, Clemens
Publisher: name: Bundesministerium für Ernährung, Landwirtschaft und Verbraucherschutz
Year: 2013

description: Fleischkonsum und moderne Tierhaltung werden zunehmend gesellschaftlich hinterfragt. Der Beitrag zeigt auf, dass dadurch auch eine ethische Legitimation der Landwirtschaft gefordert ist. Dies beinhaltet die Frage nach einer Ethik der Mitgeschöpflichkeit, nach der den Tieren eine eigene Würde zukommt. Unter dem Wachstumsparadigma werden auch Massenkonsum und Massentierhaltung kritisch hinterfragt. Als Alternative wird dazu eine Ethik der Selbstbegrenzung propagiert des "Weniger ist mehr", womit auch ein maßvoller Fleischverzehr verbunden ist. Eine Entschleunigung von Produktionsprozessen wird dann auch für die Landwirtschaft gefordert, um die ausschließliche Fixierung auf Leistungseffizienz aus dem modernen System der Tierhaltung herauszunehmen. Unter ökologischem Bezug richtet sich der Blick immer stärker auch auf eine Ethik der Schöpfungsverantwortung, wobei die zunehmende Konzentration von Tierbeständen in Bezug zu ihren ökologischen Folgen gesetzt wird: Gülleüberschüsse mit anfallenden Ammoniak- und Nitratbelastungen, klimarelevante Emissionen aus der Tierhaltung sowie die Intensivproduktion im Futtermittelanbau mit einseitigen Fruchtfolgen und schädlichen Auswirkungen auf das Boden-Ökosystem.Letztlich ist auch der Fleischkonsum im Hinblick auf seine ökologische Ressourceneffizienz, nämlich dem höheren Einsatz von Wasser, Fläche und Energie in der Diskussion. Ganz spezifisch sind dann die tierethischen Anfragen der Haltung hinsichtlich der Aufstallung, der Belegungsdichte, des Auslaufs, der artgerechten Haltung, des Tiertransports und der Schlachtung. Die Frage einer globalen Flächennutzungskonkurrenz wird nicht nur hinsichtlich der Agroenergiediskussion zwischen „Teller und Tank“ geführt, sondern auch zunehmend zwischen „Teller und Trog“. Damit gerät eine Sozialethik internationaler Verteilungs- und Beteiligungsgerechtigkeit auf den Prüfstand. Solche ethischen Fragestellungen stehen auch in Beziehung zu einer landwirtschaftlichen Berufsethik und verbraucherethischen Orientierung. Darauf reagieren die gesellschaftlichen Akteure in unterschiedlicher Weise, ob von Seiten der Verbraucher, der Fleischwirtschaft, der Landwirtschaft, der Politik und letztlich auch die öffentliche Meinung.
description: Berichte über Landwirtschaft - Zeitschrift für Agrarpolitik und Landwirtschaft, Band 91, Heft 3, Dezember 2013
On a question of Drinfeld on the Weil representation I: the finite field case
Creators: name: Wang, Chun-Hui
Publisher: name: arXiv
Year: 2012
Subjects: subject: Representation Theory (math.RT)
subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11F27, 20C33

description: Let F be a finite field of odd cardinality, and let G= GL2(F). The group G \times G \times G acts on F^2 \otimes F^2 \otimes F^2 via symplectic similitudes, and has a natural Weil representation. Answering a question rasised by V. Drinfeld, we decompose that representation into irreducibles. We also decompose the analogous representation of GL2(A), where A is a cubic algebra over F.
description: 29 pages. Comments welcome
Milcherzeugung unter den Bedingungen des Klimawandels – Möglichkeiten zur Vermeidung oder Minderung des Hitzestresses
Creators: name: Brade, Wilfried
Publisher: name: Bundesministerium für Ernährung, Landwirtschaft und Verbraucherschutz
Year: 2013

description: Hitzestress ist nicht nur in tropischen Ländern zu beobachten, sondern wird zunehmend auch in Ländern mit gemäßigtem Klima – infolge des zu beobachtenden Klimawandels – ein Problem.Rinder sind relativ kältestabil, aber nur wenig hitzeresistent. Milchkühe sind vor allem sensibel gegenüber Temperaturen oberhalb ihrer thermoneutralen Zone, die sich bei hoher Luftfeuchte zusätzlich verstärkt. Hitzestress wirkt sich negativ auf die Leistung und die Gesundheit der Tiere aus; vor allem bei hoch leistenden
Tieren. Nicht nur der Rückgang der Leistung sowie die gleichzeitige Zunahme gesundheitlicher Probleme sondern auch die abnehmende Fruchtbarkeit der Tiere einschließlich die Verschlechterung der Milchqualität (zum Beispiel regelmäßige Zunahme des somatischen Milchzellgehaltes in den Sommermonaten) führen bei den Landwirten zu ökonomischen Einbußen.Gewöhnlich ist der Tierhalter mit generellen Maßnahmen zur Linderung des Hitzestresses gut vertraut. Die in den vergangenen Jahren erzielten Leistungssteigerungen – in Verbindung mit weiter zu erwartenden Klimaänderungen – lassen diese Thematik in der tierärztlichen Beratung und bei Empfehlungen zum Neubau/Umbau von Stallanlagen jedoch zunehmend wichtiger werden.
description: Berichte über Landwirtschaft - Zeitschrift für Agrarpolitik und Landwirtschaft, Band 91, Heft 3, Dezember 2013
Loss-Based Risk Measures
Creators: name: Cont, Rama
name: Deguest, Romain
name: He, Xuedong
Publisher: name: arXiv
Year: 2011
Subjects: subject: Risk Management (q-fin.RM)
subject: Portfolio Management (q-fin.PM)
subject: FOS: Economics and business

description: Starting from the requirement that risk measures of financial portfolios should be based on their losses, not their gains, we define the notion of loss-based risk measure and study the properties of this class of risk measures. We characterize loss-based risk measures by a representation theorem and give examples of such risk measures. We then discuss the statistical robustness of estimators of loss-based risk measures: we provide a general criterion for qualitative robustness of risk estimators and compare this criterion with sensitivity analysis of estimators based on influence functions. Finally, we provide examples of statistically robust estimators for loss-based risk measures.
description: 40 pages
Brundan-Kazhdan-Lusztig conjecture for general linear Lie superalgebras
Creators: name: Cheng, Shun-Jen
name: Lam, Ngau
name: Wang, Weiqiang
Publisher: name: arXiv
Year: 2012
Subjects: subject: Representation Theory (math.RT)
subject: Quantum Algebra (math.QA)
subject: FOS: Mathematics
subject: 17B10

description: In the framework of canonical and dual canonical bases of Fock spaces, Brundan in 2003 formulated a Kazhdan-Lusztig type conjecture for the characters of the irreducible and tilting modules in the BGG category for the general linear Lie superalgebra for the first time. In this paper, we prove Brundan's conjecture and its variants associated to all Borel subalgebras in full generality.
description: 64 pages, Notes in the Introduction and Remark 3.14 added
Photospheric Magnetic Field: Relationship Between North-South Asymmetry and Flux Imbalance
Creators: name: Vernova, E. S.
name: Tyasto, M. I.
name: Baranov, D. G.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Photospheric magnetic fields were studied using the Kitt Peak synoptic maps for 1976-2003. Only strong magnetic fields (B>100 G) of the equatorial region were taken into account. The north-south asymmetry of the magnetic fluxes was considered as well as the imbalance between positive and negative fluxes. The north-south asymmetry displays a regular alternation of the dominant hemisphere during the solar cycle: the northern hemisphere dominated in the ascending phase, the southern one in the descending phase during Solar Cycles 21-23. The sign of the imbalance did not change during the 11 years from one polar-field reversal to the next and always coincided with the sign of the Sun's polar magnetic field in the northern hemisphere. The dominant sign of leading sunspots in one of the hemispheres determines the sign of the magnetic-flux imbalance. The sign of the north-south asymmetry of the magnetic fluxes and the sign of the imbalance of the positive and the negative fluxes are related to the quarter of the 22-year magnetic cycle where the magnetic configuration of the Sun remains constant (from the minimum where the sunspot sign changes according to Hale's law to the magnetic-field reversal and from the reversal to the minimum). The sign of the north-south asymmetry for the time interval considered was determined by the phase of the 11-year cycle (before or after the reversal); the sign of the imbalance of the positive and the negative fluxes depends on both the phase of the 11-year cycle and on the parity of the solar cycle. The results obtained demonstrate the connection of the magnetic fields in active regions with the Sun's polar magnetic field in the northern hemisphere.
description: 24 pages, 12 figures, 2 tables
Development of a two stage liability allocation process in case of multiple party pollution
Creators: name: Priya, Lakshmi
name: Varghese, George K.
name: Pivato, Alberto
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Biophysics
subject: Space Science
subject: Physical Sciences not elsewhere classified
subject: Genetics
subject: FOS: Biological sciences
subject: Neuroscience
subject: Biotechnology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Immunology
subject: FOS: Clinical medicine
subject: Developmental Biology
subject: Science Policy
subject: Computational Biology

description: Liability allocation in pollution incidents involving multiple polluters is a challenging task even in cases where thorough forensic investigation has been carried out. A two-stage liability allocation process, i.e., technical liability allocation carried out by technical experts followed by legal liability allocation, is suggested for adoption in such cases. The liability allocation may be required for the impacts of pollution and/or for remediation of the polluted site. The first stage of liability allocation, i.e., technical liability allocation is discussed in the paper. The study identified and evaluated the most relevant technical factors that should be considered for responsibility allocation. These factors, quantified from the results of an environmental forensic investigation, can be aggregated as ‘Impact index’ and ’Remediation index’ for use in liability allocation. A method for the estimation of ’Impact index’ and ’Remediation index’ is suggested. The study argues that the overall liability allocation can be made more efficient and faster when the liability allocation is a two-stage process.
Modified Shallow Water Equations for significantly varying seabeds
Creators: name: Dutykh, Denys
name: Clamond, Didier
Publisher: name: arXiv
Year: 2012
Subjects: subject: Classical Physics (physics.class-ph)
subject: Analysis of PDEs (math.AP)
subject: Numerical Analysis (math.NA)
subject: Computational Physics (physics.comp-ph)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: In the present study, we propose a modified version of the Nonlinear Shallow Water Equations (Saint-Venant or NSWE) for irrotational surface waves in the case when the bottom undergoes some significant variations in space and time. The model is derived from a variational principle by choosing an appropriate shallow water ansatz and imposing some constraints. Our derivation procedure does not explicitly involve any small parameter and is straightforward. The novel system is a non-dispersive non-hydrostatic extension of the classical Saint-Venant equations. A key feature of the new model is that, like the classical NSWE, it is hyperbolic and thus similar numerical methods can be used. We also propose a finite volume discretisation of the obtained hyperbolic system. Several test-cases are presented to highlight the added value of the new model. Some implications to tsunami wave modelling are also discussed.
description: 34 pages, 18 figures, 65 references. Other author's papers can be downloaded at http://www.denys-dutykh.com/