cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Information Based Complexity Applied to Optimal Recovery of the 2 1/2-D Sketch
Creators: name: Kender, John R.
name: Lee, David
name: Boult, Terrance E.
Publisher: name: Columbia University
Year: 1985
Subjects: Computer science

description: In this paper, we introduce the information based complexity approach to optimal algorithms as a paradigm for solving image understanding problems, and obtain the optimal error algorithm for recovering the "2 1/2-D Sketch" (i.e. a dense depth map) from a sparse depth map. First, we give a interpolation algorithm that is provably optimal for surface reconstruction; furthermore the algorithm runs in linear time. Secondly, we show that adaptive information (i.e. the intelligent and selective determination of where to sample next, based on the values of previous samples) can not improve the accuracy of reconstruction. Third, we discuss properties of an implementation of the algorithm which make it very amenable to parallel processing, and which allow for point-wise determination of surface depth without the necessity for global surface reconstruction. We conclude with some remarks on a serial implementation.
On the Power of Parity Polynomial Time
Creators: name: Cai, Jin-Yi
name: Hemachandra, Lane A.
Publisher: name: Columbia University
Year: 1987
Subjects: Computer science

description: This paper proves that the complexity class Ef)P, parity polynomial time [PZ83], contains the class of languages accepted by NP machines with few accepting paths. Indeed, Ef)P contains a. broad class of languages accepted by path-restricted nondeterministic machines. In particular, Ef)P contains the polynomial accepting path versions of NP, of the counting hierarchy, and of ModmNP for m > 1. We further prove that the class of nondeterministic path-restricted languages is closed under bounded truth-table reductions.
Interferometer readout-noise below the Standard Quantum Limit of a membrane
Creators: name: Westphal, Tobias
name: Friedrich, Daniel
name: Kaufer, Henning
name: Yamamoto, Kazuhiro
name: Gossler, Stefan
name: Mueller-Ebhardt, Helge
name: Danilishin, Stefan L.
name: Khalili, Farid Ya.
name: Danzmann, Karsten
name: Schnabel, Roman
Publisher: name: arXiv
Year: 2011
Subjects: subject: Optics (physics.optics)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Here we report on the realization of a Michelson-Sagnac interferometer whose purpose is the precise characterization of the motion of membranes showing significant light transmission. Our interferometer has a readout noise spectral density (imprecision) of 3E-16 m/sqrt(Hz) at frequencies around the fundamental resonance of a SiN_x membrane at about 100 kHz, without using optical cavities. The readout noise demonstrated is more than 16 dB below the peak value of the membrane's standard quantum limit (SQL). This reduction is significantly higher than those of previous works with nano-wires [Teufel et al., Nature Nano. 4, 820 (2009); Anetsberger et al., Nature Phys. 5, 909 (2009)]. We discuss the meaning of the SQL for force measurements and its relation to the readout performance and conclude that neither our nor previous experiments achieved a total noise spectral density as low as the SQL.
Colorado water, June 1998
Creators: name: Bryant, J. B.
name: Ceridon, Maile
name: Miller, Shirley
name: Colorado Water Resources Research Institute, Publisher
Publisher: name: Mountain Scholar
Year: 1998
Subjects: subject: Water resources development -- Colorado
subject: Water use -- Colorado
subject: Water-supply -- Colorado
subject: Water-supply -- Management -- Colorado

description: The scope of the newsletter is devoted to enhancing communication between Colorado water users and managers and faculty at the research universities in the state.
description: Newsletter of the Colorado Water Resources Research Institute.
Bloodhound: Searching Out Malicious Input in Network Flows for Automatic Repair Validation
Creators: name: Locasto, Michael E.
name: Burnside, Matthew Spindel
name: Keromytis, Angelos D.
Publisher: name: Columbia University
Year: 2006
Subjects: Computer science

description: Many current systems security research efforts focus on mechanisms for Intrusion Prevention and Self-Healing Software. Unfortunately, such systems find it difficult to gain traction in many deployment scenarios. For self-healing techniques to be realistically employed, system owners and administrators must have enough confidence in the quality of a generated fix that they are willing to allow its automatic deployment. In order to increase the level of confidence in these systems, the efficacy of a 'fix' must be tested and validated after it has been automatically developed, but before it is actually deployed. Due to the nature of attacks, such verification must proceed automatically. We call this problem Automatic Repair Validation (ARV). As a way to illustrate the difficulties faced by ARV, we propose the design of a system, Bloodhound, that tracks and stores malicious network flows for later replay in the validation phase for self-healing software
The Possibilist Transactional Interpretation and Relativity
Creators: name: Kastner, Ruth E.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: History and Philosophy of Physics (physics.hist-ph)
subject: FOS: Physical sciences

description: A recent ontological variant of Cramer's Transactional Interpretation, called "Possibilist Transactional Interpretation" or PTI, is extended to the relativistic domain. The present interpretation clarifies the concept of 'absorption,' which plays a crucial role in TI (and in PTI). In particular, in the relativistic domain, coupling amplitudes between fields are interpreted as amplitudes for the generation of confirmation waves (CW) by a potential absorber in response to offer waves (OW), whereas in the nonrelativistic context CW are taken as generated with certainty. It is pointed out that solving the measurement problem requires venturing into the relativistic domain in which emissions and absorptions take place; nonrelativistic quantum mechanics only applies to quanta considered as 'already in existence' (i.e., 'free quanta'), and therefore cannot fully account for the phenomenon of measurement, in which quanta are tied to sources and sinks.
description: Final version with some minor corrections as published in Foundations of Physics. This paper has significant overlap with Chapter 6 of my book on the Transactional Interpretation, forthcoming from Cambridge University Press: http://www.cambridge.org/us/knowledge/isbn/item6860644/?site_locale=en_US (Additional preview material is available at rekastner.wordpress.com) Comments welcome
On unified-entropy characterization of quantum channels
Creators: name: Rastegin, Alexey E.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We consider properties of quantum channels with use of unified entropies. Extremal unravelings of quantum channel with respect to these entropies are examined. The concept of map entropy is extended in terms of the unified entropies. The map $(q,s)$-entropy is naturally defined as the unified $(q,s)$-entropy of rescaled dynamical matrix of given quantum channel. Inequalities of Fannes type are obtained for introduced entropies in terms of both the trace and Frobenius norms of difference between corresponding dynamical matrices. Additivity properties of introduced map entropies are discussed. The known inequality of Lindblad with the entropy exchange is generalized to many of the unified entropies. For tensor product of a pair of quantum channels, we derive two-sided estimating of the output entropy of a maximally entangled input state.
description: 12 pages, no figures. Typos are fixed. One lemma is extended and removed to Appendix
A Theory of Spherical Harmonic Identities for BRDF/Lighting Transfer and Image Consistency
Creators: name: Mahajan, Dhruv
Publisher: name: Columbia University
Year: 2006
Subjects: Computer science

description: We develop new mathematical results based on the spherical harmonic convolution framework for reflection from a curved surface. We derive novel identities, which are the angular frequency domain analogs to common spatial domain invariants such as reflectance ratios. They apply in a number of canonical cases, including single and multiple images of objects under the same and different lighting conditions. One important case we consider is two different glossy objects in two different lighting environments. While this paper is primarily theoretical, it has the potential to lay the mathematical foundations for two important practical applications. First, we can develop more general algorithms for inverse rendering problems, which can directly relight and change material properties by transferring the BRDF or lighting from another object or illumination. Second, we can check the consistency of an image, to detect tampering or image splicing.
Power spectrum of mass and activity fluctuations in a sandpile
Creators: name: Yadav, Avinash Chand
name: Ramaswamy, Ramakrishna
name: Dhar, Deepak
Publisher: name: arXiv
Year: 2012
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We consider a directed abelian sandpile on a strip of size $2\times n$, driven by adding a grain randomly at the left boundary after every $T$ time-steps. We establish the exact equivalence of the problem of mass fluctuations in the steady state and the number of zeroes in the ternary-base representation of the position of a random walker on a ring of size $3^n$. We find that while the fluctuations of mass have a power spectrum that varies as $1/f$ for frequencies in the range $ 3^{-2n} \ll f \ll 1/T$, the activity fluctuations in the same frequency range have a power spectrum that is linear in $f$.
description: 8 pages, 10 figures
Colorado water, May/June 2013
Creators: name: Middleton, Lindsey A.
name: Colorado Water Institute, Publisher
Publisher: name: Mountain Scholar
Year: 2013
Subjects: subject: Water resources development -- Colorado
subject: Water use -- Colorado
subject: Water-supply -- Colorado
subject: Water-supply -- Management -- Colorado

description: The newsletter is devoted to enhancing communication between Colorado water users and managers and faculty at the state's research universities.
description: Newsletter of the Water Center of Colorado State University. Theme: Student research.
BGRP: A Tree-Based Aggregation Protocol for Inter-domain Reservations
Creators: name: Pan, Ping
name: Hahne, Ellen L.
name: Schulzrinne, Henning G.
Publisher: name: Columbia University
Year: 1999
Subjects: Computer science

description: Resource reservation needs to accommodate the rapidly growing size and increasing service diversity of the Internet. Recently, hierarchical architectures have been proposed that provide domain-level reservation.However, it is not clear that these proposals can set up and maintain reservations in an efficient and scalable fashion. In this paper, we describe a distributed architecture and protocol,called the Border Gateway Reservation Protocol (BGRP), for inter-domain resource reservation that can scale in terms of message processing load. state storage and bandwidth. Each stub or transit domain may use its own intra-domain resource reservation protocol. BGRP builds a sink tree for each of the stub domains. Each sink tree aggregates bandwidth reservations from all data sources in the network.Since backbone routers only maintain the sink tree information, the total number of reservation states at each router scales, in the worst case, linearly with the number of domains in the Internet. BGRP relies on differentiated services for data forwarding. As a result, the number of packet classifier entries is small, not the number of micro-flows.To reduce the protocol message traffic, routers may reserve domain bandwidth beyond the current load so that sources can join or leave the tree or change their reservation without having to send messages all the way to the root for every such change. We use``soft state'' to maintain reservations. In contrast to RSVP, refresh messages are delivered reliably, allowing us to reduce the refresh frequency.
Magnetic order in spin-1 and spin-3/2 interpolating square-triangle Heisenberg antiferromagnets
Creators: name: Li, P. H. Y.
name: Bishop, R. F.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Using the coupled cluster method we investigate spin-$s$ $J_{1}$-$J_{2}'$ Heisenberg antiferromagnets (HAFs) on an infinite, anisotropic, triangular lattice when the spin quantum number $s=1$ or $s=3/2$. With respect to a square-lattice geometry the model has antiferromagnetic ($J_{1} > 0$) bonds between nearest neighbours and competing ($J_{2}' > 0$) bonds between next-nearest neighbours across only one of the diagonals of each square plaquette, the same one in each square. In a topologically equivalent triangular-lattice geometry, we have two types of nearest-neighbour bonds: namely the $J_{2}' \equiv κJ_{1}$ bonds along parallel chains and the $J_{1}$ bonds producing an interchain coupling. The model thus interpolates between an isotropic HAF on the square lattice at $κ= 0$ and a set of decoupled chains at $κ\rightarrow \infty$, with the isotropic HAF on the triangular lattice in between at $κ= 1$. For both the $s=1$ and the $s=3/2$ models we find a second-order quantum phase transition at $κ_{c}=0.615 \pm 0.010$ and $κ_{c}=0.575 \pm 0.005$ respectively, between a Néel antiferromagnetic state and a helical state. In both cases the ground-state energy $E$ and its first derivative $dE/dκ$ are continuous at $κ=κ_{c}$, while the order parameter for the transition (viz., the average on-site magnetization) does not go to zero on either side of the transition. The transition at $κ= κ_{c}$ for both the $s=1$ and $s=3/2$ cases is analogous to that observed in our previous work for the $s=1/2$ case at a value $κ_{c}=0.80 \pm 0.01$. However, for the higher spin values the transition is of continuous (second-order) type, as in the classical case, whereas for the $s=1/2$ case it appears to be weakly first-order in nature (although a second-order transition could not be excluded).
description: 17 pages, 8 figues (Figs. 2-7 have subfigs. (a)-(d))
An estimate of theta_14 independent of the reactor antineutrino flux determinations
Creators: name: Palazzo, Antonio
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: In a previous paper [Phys. Rev. D 83, 113013 (2011)] we have shown that the solar sector data (solar and KamLAND) are sensitive to the parameter theta_14, encoding the admixture of the electron neutrino with a fourth (essentially) sterile mass eigenstate. In that work we evidenced that such data prefer a non-zero value of theta_14 and that such a preference is completely degenerate with that of non-zero theta_13. In this report we show how the evidence of theta_13 > 0, recently emerged from global neutrino data analyses, lifts such a degeneracy and disfavors the case of sterile neutrino mixing. By excluding from our analysis the total rate information coming from the reactor experiments we untie our results from any assumption on their flux normalization. In this way, we establish the robust upper bound sin^2 (theta_14) < 0.04 at the 90% C.L.
description: 4 pages, 1 figure, minor changes, matches version accepted by PRD
Speculative Execution as an Operating System Service
Creators: name: Locasto, Michael E.
name: Keromytis, Angelos D.
Publisher: name: Columbia University
Year: 2006
Subjects: Computer science

description: Software faults and vulnerabilities continue to present significant obstacles to achieving reliable and secure software. In an effort to overcome these obstacles, systems often incorporate self-monitoring and self-healing functionality. Our hypothesis is that internal monitoring is not an effective long-term strategy. However, monitoring mechanisms that are completely external lose the advantage of application-specific knowledge available to an inline monitor. To balance these tradeoffs, we present the design of VxF, an environment where both supervision and automatic remediation can take place by speculatively executing 'slices' of an application. VxF introduces the concept of an endolithic kernel by providing execution as an operating system service: execution of a process slice takes place inside a kernel thread rather than directly on the system microprocessor.
Colorado water, February 2004
Creators: name: Flanagan, Marian
name: Miller, Shirley
name: Colorado Water Resources Research Institute, Publisher
Publisher: name: Mountain Scholar
Year: 2004
Subjects: subject: Water resources development -- Colorado
subject: Water use -- Colorado
subject: Water-supply -- Colorado
subject: Water-supply -- Management -- Colorado

description: The scope of the newsletter is devoted to enhancing communication between Colorado water users and managers and faculty at the research universities in the state.
description: Newsletter of the Water Center at Colorado State University.
Quantum Stability of Chameleon Field Theories
Creators: name: Upadhye, Amol
name: Hu, Wayne
name: Khoury, Justin
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Chameleon scalar fields are dark energy candidates which suppress fifth forces in high density regions of the universe by becoming massive. We consider chameleon models as effective field theories and estimate quantum corrections to their potentials. Requiring that quantum corrections be small, so as to allow reliable predictions of fifth forces, leads to an upper bound $m < 0.0073 (ρ/ 10 {\rm g\, cm}^{-3})^{1/3}$eV for gravitational strength coupling whereas fifth force experiments place a lower bound of $m>0.0042$\,eV. An improvement of less than a factor of two in the range of fifth force experiments could test all classical chameleon field theories whose quantum corrections are well-controlled and couple to matter with nearly gravitational strength regardless of the specific form of the chameleon potential.
description: 5 pages, 3 figures. Matches version accepted by PRL
Development And Evaluation of Shared Decision Making Tools in Rheumatology: A Scoping Review
Creators: Aref, Heba
Turk, Tarek
Dhanani, Ruhee
Xiao, Andrew
Jones, Allyson
Olson, Joanne
Paul, Pauline
Dennett, Liz
Yacyshyn, Elaine
Sadowski, Cheryl A
Publisher: name: University of Alberta Library
Year: 2023

This was a podium presentation, presented at the Faculty of Pharmacy & Pharmaceutical Sciences Research Day 2023.
Controlling energy intake in the prepartum period to improve transition cow health
Creators: name: Vickers, Lori Ann
Publisher: name: University of British Columbia
Year: 2011

description: A common feeding practice during the dry period is to switch dairy cows to a low forage, energy dense diet 3 weeks prepartum, but this practice has been criticized as it may lead to the overconsumption of energy and increase the risk of metabolic disease postpartum. The aim of this trial was to compare the metabolic status of transition Holstein dairy cows fed a 77% forage diet (77F) (NEL = 1.46 Mcal/kg; NDF = 41%) versus those fed a 87% forage diet (87F) (NEL = 1.41 Mcal/kg; 48% NDF). Approximately 60 days before calving cows were dried off and fed the 87F diet. Three weeks before expected calving cows were randomly assigned to either remain on the 87F diet (n=42) or switched to the 77F diet (n=45). After calving, all cows were fed a common lactation diet (NEL=1.59 Mcal/kg). Dry matter intake (DMI) was measured daily from 2 weeks before to 2 weeks after calving. Blood was sampled twice-weekly prepartum and daily for 10 days postpartum. Subclinical ketosis (SCK) was diagnosed using a threshold of BHBA ≥ 1.0 mmol/L after calving. Metritis was determined by examining vaginal discharge. Cows on the 87F diet had lower DMI prepartum than those on the 77F diet (12.7 kg/d ± 0.3 vs. 15.4 ± 0.3, P <0.0001), but no difference was detected after calving (19.7 ± 5.5 kg/d; P=0.64). Although the calculated prepartum required energy intake was the same between treatments (15.3 ± 1.2; P=0.16), and both groups consumed in excess to these requirements, cows on the 77F diet consumed 5.1 Mcal/d more than those on the 87F diet. Postpartum BHBA levels were lower for cows fed the 87F diet prepartum (0.49 mmol/L ± 0.03 vs. 0.58 ± 0.03; P=0.003), and fewer animals on this diet were diagnosed with SCK (48.9% vs. 16.7%; P=0.001). We also noted a tendency for fewer cows to be diagnosed with metritis on the 87F diet (28.9% vs. 14.3%; P=0.1). There was no difference in daily milk production between treatments. These results indicate that feeding an 87F diet before calving can improve health in transition dairy cows.
Choices in the Design of a Language Pre-Processor for Specifying Redundancy
Creators: name: Smith, Jonathan M.
name: Maguire, Gerald Q.
Publisher: name: Columbia University
Year: 1987
Subjects: Computer science

description: RB is a set of constructs which can be added to a programming language to specify redundancy in a program: a complete implementation of the macro processor and its support library is underway at Columbia University. While the main focus of our research is fault tolerance, we have made some observations which we believe are of interest to the programming language community. We decided that implementation of RB as a macro preprocessor for some underlying programming language (we've chosen C) best suited our needs and design goals. The remainder of this report details those goals and our decisions.
On the Fitzhugh-Nagumo model
Creators: name: De Angelis, M.
name: Renno, P.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Neurons and Cognition (q-bio.NC)
subject: Analysis of PDEs (math.AP)
subject: FOS: Biological sciences
subject: FOS: Mathematics

description: The initial value problem P0, in all of the space, for the spatio - temporal FitzHugh - Nagumo equations is analyzed. When the reaction kinetics of the model can be outlined by means of piecewise linear approximations, then the solution of P0 is explicitly obtained. For periodic initial data are possible damped travelling waves and their speed of propagation is evaluated. The results imply applications also to the non linear case.
Colorado water, August 2019
Creators: name: Millonig, Sarah
name: Boehmer, Catie
name: Colorado Water Center, Publisher
Publisher: name: Mountain Scholar
Year: 2019
Subjects: subject: Water resources development -- Colorado
subject: Water use -- Colorado
subject: Water-supply -- Colorado
subject: Water-supply -- Management -- Colorado

description: The newsletter is devoted to highlighting water research and activities at CSU and throughout Colorado.
description: Newsletter of the Colorado Water Center. Theme: Hydrology Days 2019.
Large eddy simulation of air flow and pollution dispersion around buildings
Creators: name: Omidyeganeh, Mohammad
Publisher: name: University of Calgary
Year: 2008

description: Bibliography: p. 193-207
description: some pages are in colour
description: The study of pollution dispersion in urban environment require more accurate prediction of air flow. The high Reynolds number air flow in the atmospheric boundary layer results in fully turbulent flow. Turbulent flow over three-dimensional obstacles is still challenging in engineering; however, a greater understanding of it is necessary to environment management. This work is an effort to provide a new code to simulate air flow around a few simple obstacles and predict the pollution dispersion in the atmospheric boundary layer for a single case. Simple but reliable methods and models were adopted in developing the code in C++ to numerically solve the fluid flow equations using large eddy simulation (LES). In addition, the mass transfer equation was numerically solved to predict the pollution dispersion around a cube mounted on the ground in the atmospheric boundary layer. Several cases were examined by the code for fluid flow simulation. The first and simplest simulation was conducted for a cube obstacle in the atmospheric boundary layer and was selected for the pollution dispersion case as well. A few parameters were changed for this problem to investigate the effects of the Reynolds number, grid spacing, and sub-grid scale constant on the flow patterns. The fluid flow around a cube mounted on a plane in a channel was the second problem. Finally, the fluid flow around two parallel rectangles in the atmospheric boundary layer with a little passage between them was investigated. All the results obtained from simulations were assessed with experimental data from the literature. However, the major differences between simulation setups and experimental models have been considered in the discussion. The most important difference between experiments and simulation was the approaching flow into the obstacles. Simulations were carried out by laminar inflow condition; however, in the experiments, fully turbulent flow had been used. As a result, the flow pattern was changed significantly; so that in the simulation with the laminar approaching flow, the wake behind the obstacle increased and the vortex on the roof disappeared. There is a good agreement between the simulation result and experimental data in most of the case. In fact, the flow in the channel resulted in more reliable outcome than the flow in atmospheric boundary layer. The developed code showed the capability of accurately predicting the pollution dispersion accurately with some modifications.
Liszt in Italy:musical representation in annes de pelerinage, deuxieme annee and troisieme annee
Creators: name: Davidson, Nola
Publisher: name: University of Calgary
Year: 2008

description: Bibliography: p. 135-148
description: Programme music was a hotly debated concern in the Romantic period and one that found a champion in the figure of Franz Liszt. The extramusical ideas represented in his work went far beyond previous conception of mere word-painting or even narrational scheme and became the impetus that redefined not only formal structure, but the very approach to composition. Sposalizio and Il penseroso from Annees de Pelerinage Deuxieme Annee: Italie, and the two Aux Cypres de la Villa d'Este: Threnodie and Les jeux d'eaux a la Villa d'Este from Annees de Pelerinage Troisieme Annee, form the basis of a discussion relative to Liszt's engagement with a wide range of extramusical stimuli at psychological, iconographical, symbolic, and archetypal levels. Hi personal and musical aesthetic , modem harmonic language, new approaches to formal consideration, key relation hip, thematic transformation, and musically symbolic reference are explored in relationship to hi programmatic intents.
Arbeitsressourcen, Arbeitsanforderungen und Spannungsfelder in der holakratischen Zusammenarbeit
Creators: name: Fernandes, Sandro
Publisher: name: My University
Year: 2021
Subjects: Arbeitsressourcen, Arbeitsanforderungen, agile Arbeit, Holakratie, Spannungsfelder

description: Neue Formen der Zusammenarbeit wie Holakratie entstehen, um mit agilen, selbstorganisierten Teams wirkungsvoll auf Veränderungen zu reagieren. Die Masterarbeit untersucht die Zusammenarbeit in einer Verkaufsorganisation und identifiziert Arbeitsressourcen, Arbeitsanforderungen sowie Spannungsfelder in deren holakratischen Praxis. Die empirische Überprüfung erfolgte durch Dokumentenanalysen, 16 Experteninterviews und einer qualitativen Inhaltsanalyse. Die Ergebnisse verdeutlichen, dass die Zusammenarbeit rollen- sowie toolbasiert und nicht in holakratischer Reinform stattfindet. Arbeitsressourcen gründen besonders in der sozialen Unterstützung sowie in der Selbst- und Arbeitsorganisation. Bei den Arbeitsanforderungen wurden emotionale Anforderungen und ein hohes Arbeitsvolumen festgestellt. Die Zusammenarbeit mit anderen hierarchischen Geschäftsbereichen, die sozialen Aspekte, welche in Holakratie zu kurz gedacht sind, und der Rollenumgang wurden als zentrale Spannungsfelder eruiert. Theoretische Implikationen werden aufgezeigt und auf praktische Interventionsansätze zur Stärkung der gesundheitsförderlicheren Zusammenarbeit werden hingewiesen.
A Survey of Parallel Programming Constructs
Creators: name: Biema, Michael Van
Publisher: name: Columbia University
Year: 1987
Subjects: Computer science

description: This paper surveys the types of parallelism found in Functional, Lisp and Object-Oriented languages. In particular, it concentrates on the addition of high level parallel constructs to these types of languages. The traditional area of the automatic extraction of parallelism by a compiler [39] is ignored here in favor of the addition of new constructs, because the long history of such automatic techniques has shown that they are not sufficient to allow the massive parallelism promised from modem computer architectures [26. 58]. The problem then, simply stated, is given that it is now possible for us to build massively parallel machines and given that our current compilers seem incapable of generating sufficient parallelism automatically, what should the language designer do? A reasonable answer seems to be to add constructs to languages that allow the expression of additional parallelism in a natural way. Indeed that is what the designers of the the Functional, Lisp, and Object-Oriented languages described below have attempted to do. The three particular programming formalisms were picked because most of the initial ideas seem to have been generated by the designers of the functional languages and most of the current activity seems to be in the Lisp and Objected-Oriented domains. There is also a great deal of activity in the Logic programming area, but this activity is more in the area of executing the existing constructs in parallel as opposed to adding constructs specifically designed to increase parallelism.
Calgary Metropolitan Plan Update
Creators: name: Calgary Regional Partnership
Publisher: name: Calgary Regional Partnership
Year: 2012
Subjects: Municipal Planning

description: June 21, 2012 saw a significant achievement for the Calgary Regional Partnership (CRP): the approval of the Calgary Metropolitan Plan. The 14 Executive members that represent the CRP’s member municipalities voted unanimously to approve the revised Plan, which has been sent to the Government of Alberta for review and eventual legislation.
Description strategies for naive and expert users
Creators: name: Paris, Cecile L.
Publisher: name: Columbia University
Year: 1985
Subjects: Computer science

description: It is widely recognized that a question-answering system should be able to tailor its answers to the user. One of the dimensions along which this tailoring can occur is with respect to the level of knowledge of a user about a domain. In particular, responses should be different depending on whether they are addressed to naive or expert users. To understand what those differences should be, we analyzed texts from adult and junior encyclopedias. We found that two different strategies were used in describing complex physical objects to juniors and adults. We show how these strategies have been implemented on a test database.
The role of employee capacity building in reducing mining company-community conflicts in Peru
Creators: name: Garcia Vasquez, Magaly Janeth
Publisher: name: University of British Columbia
Year: 2011

description: Based on expenditure, Peru is the third destination worldwide in exploration. Peru is also the world’s leading producer of silver, second in copper and zinc, and sixth in gold. However, mining conflicts in Peru have spread considerably over the last decade. The Peruvian government has not been able to successfully promote the benefits of the industry to local communities, nor has it been able to effectively address grievances. Mining companies will need to explore new initiatives to acquire and retain the social license to operate, as well as strengthening the social capital needed to keep mining in a country with proven mineralogical riches and a historic mining culture. This research project explores the opinions and experiences surrounding a resource often overlooked by companies: the human resource. In order to gather information regarding initiatives to improve company-community relations, more than 30 surveys were conducted among professionals working at mines in the Peruvian mining industry. This research project also explored the effectiveness of training mining personnel in community affairs as an initiative to improve relations with local communities. The results showed that mining company employees acknowledge that they play an important role in the development of company-community relations. They consider that the deterioration of such relations may also originate in the way employee-community relations are managed. The research also showed that employees are willing to develop capacities to effectively interact with local communities. Mining company employees provided their recommendations in order to contribute to success in a location where cultural differences have not been properly considered. Finally, participants also expressed their opinions regarding organizational cultures and the impact of management commitment (or lack thereof) on community affairs.
Colorado water, December 1993
Creators: name: Miller, Shirley
name: Colorado Water Resources Research Institute, Publisher
Publisher: name: Mountain Scholar
Year: 1993
Subjects: subject: Water resources development -- Colorado
subject: Water-supply -- Colorado
subject: Water use -- Colorado
subject: Water-supply -- Management -- Colorado

description: The scope of the newsletter is devoted to enhancing communication between Colorado water users and managers and faculty at the research universities in the state.
description: Newsletter of the Colorado Water Resources Research Institute.
title: Spatial Function Estimation with Uncertain Sensor Locations
Creators: name: Ptáček, Martin
Publisher: name: TU Wien
Year: 2021
Subjects: subject: Gaussian Process Regression (GPR)
subject: Uncertain sensor (training) positions
subject: Uncertain inputs
subject: Machine learning
subject: Monte Carlo sampling

description: In this thesis, we investigate the task of spatial function estimation from the viewpoint of Gaussian Process Regression (GPR) while accounting for uncertain training positions (uncertain sensor positions, uncertain inputs). We first present the theory behind GPR with known training positions. The theory is then applied to derive the expressions for the GPR predictive distribution at a test position under training position uncertainty. Because these expressions are intractable, they are evaluated approximately using the Monte Carlo sampling method. This method is demonstrated to improve the prediction performance over the standard usage of GPR not accounting for uncertainty and also compared to a simplified approach present in the literature. We furthermore investigate the possibilities of performing GPR under training position uncertainty while using closed form expressions for prediction reported in the literature. It turns out that significant approximations are needed to obtain these closed form expressions, which makes the resulting posterior distribution inherently approximate. In fact, the resulting GPR method uses the standard form of GPR for prediction along with a modified expression of the covariance function. A simulation shows that the prediction results of this method are similar to those of standard GPR not accounting for uncertainty. On the other hand, the posterior variance indicating the prediction uncertainty was increased, which is the desired effect of incorporating uncertainty of training positions.
Analytical solution of second Stokes problem of behaviour of rarefied gas with Cercignani boundary accomodation conditions
Creators: name: Latyshev, A. V.
name: Yushkanov, A. A.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 82B40, 80A20, 80A99

description: Analytical solution of second Stokes problem of behaviour of rarefied gas with Cercignani boundary accomodation conditions The second Stokes problem about behaviour of rarefied gas filling half-space is analytically solved. A plane, limiting half-space, makes harmonious fluctuations in the plane. The kinetic BGK-equation (Bhatnagar, Gross, Krook) is used. The boundary accomodation conditions of Cercignani of reflexion gaseous molecules from a wall are considered. Distribution function of the gaseous molecules is constructed. The velocity of gas in half-space is found, also its value direct at a wall is found. The force resistance operating from gas on border is found. Besides, the capacity of dissipation of the energy falling to unit of area of the fluctuating plate limiting gas is obtained.
description: 26 pages, 5 figures
WWW-based Collaboration Environments with Distributed Tool Services
Creators: name: Kaiser, Gail E.
name: Dossick, Stephen E.
name: Jiang, Wenyu
name: Yang, Jack Jingshuang
name: Ye, Sonny Xi
Publisher: name: Columbia University
Year: 1997
Subjects: Computer science

description: We have developed an architecture and realization of a framework for hypermedia collaboration environments that support purposeful work by orchestrated teams. The hypermedia represents all plausible multimedia artifacts concerned with the collaborative task(s) at hand that can be placed or generated on-line, from application-specific materials (e.g., source code, chip layouts,blueprints) to formal documentation to digital library resources to informal email and chat transcripts. The environment capabilities include both internal (hypertext) and external (link server) links among these artifacts, which can be added incrementally as useful connections are discovered; project-specific hypermedia search and browsing; automated construction of artifacts and hyperlinks according to the semantics of the group and individual tasks and the overall process workflow; application of tools to the artifacts; and collaborative work for geographically dispersed teams. We present a general architecture for what we call hypermedia subwebs, and imposition of {\em group space} services operating on shared subwebs, based on World Wide Web technology --- which could be applied over the Internet and/or within an organizational intranet.We describe our realization in OzWeb, which reuses object-oriented data management for application-specific subweb organization, and workflow enactment and cooperative transactions as built-in group space services, which were originally developed for the Oz process-centered software development environment framework. Further, we present a general architecture for a WWW-based distributed tool launching service. This service is implemented by the generic Rivendell component, which could be employed in a stand-alone manner, but has been integrated into OzWeb as an example "foreign" (i.e., add-on) group space service.
Using Angle of Arrival (Bearing) Information in Network Localization
Creators: name: Eren, Tolga
name: Whiteley, Walter
name: Belhumeur, Peter N.
Publisher: name: Columbia University
Year: 2006
Subjects: Computer science

description: In this paper, we consider using angle of arrival information (bearing) for network localization and control in two different fields of multi-agent systems: (i) wireless sensor networks; (ii) robot networks. The essential property we require in this paper is that a node can infer heading information from its neighbors. We address the uniqueness of network localization solutions by the theory of globally rigid graphs. We show that while the parallel rigidity problem for formations with bearings is isomorphic to the distance case, the global rigidity of the formation is simpler (in fact identical to the simpler rigidity case) for a network with bearings, compared to formations with distances. We provide the conditions of localization for networks in which the neighbor relationship is not necessarily symmetric.
Parrondo-like behavior in continuous-time random walks with memory
Creators: name: Montero, Miquel
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mathematical Physics (math-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Statistical Finance (q-fin.ST)
subject: FOS: Physical sciences
subject: FOS: Economics and business

description: The Continuous-Time Random Walk (CTRW) formalism can be adapted to encompass stochastic processes with memory. In this article we will show how the random combination of two different unbiased CTRWs can give raise to a process with clear drift, if one of them is a CTRW with memory. If one identifies the other one as noise, the effect can be thought as a kind of stochastic resonance. The ultimate origin of this phenomenon is the same of the Parrondo's paradox in game theory
description: 8 pages, 3 figures, revtex; enlarged and revised version
An approximation of average run length using the Markov chain approach of a generally weighted moving average chart to monitor the number of defects
Creators: name: Saowanit Sukparungsee
Publisher: name: Research and Development Office, Prince of Songkla University
Year: 2018
Subjects: closed-form formulae
time-varying chart
time consuming
binomial distribution and stopping times

description: Songklanakarin Journal of Science and Technology, 40, 6, 1368-1377
The Decay B --> K l^+ l^- at Low Hadronic Recoil and Model-Independent Delta B = 1 Constraints
Creators: name: Bobeth, Christoph
name: Hiller, Gudrun
name: van Dyk, Danny
name: Wacker, Christian
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We study the decay B --> K l^+ l^- for l = e,mu,tau with a softly recoiling kaon, that is, for high dilepton invariant masses sqrt{q^2} of the order of the b-quark mass. This kinematic region can be treated within an operator product expansion and simplified using heavy quark symmetry, leading to systematic predictions for heavy-to-light processes such as B --> K^(*) l^+ l^-. We show that the decay rates of both B --> K^* l^+ l^- and B --> K l^+ l^- decays into light leptons depend on a common combination of short-distance coefficients. The corresponding CP-asymmetries are hence identical. Furthermore we present low recoil predictions for B --> K l^+ l^- observables, including the flat term in the angular distribution which becomes sizable for taus. We work out model-independently the constraints on Delta B = 1 operators using the most recent data from the experiments BaBar, Belle, CDF and LHCb. For constructive interference with the standard model, generic new physics is pushed up to scales above 44 TeV at 95% CL. Assuming none or small CP-violation we obtain a lower bound on the position of the zero of the forward-backward asymmetry of B^0 --> K^*0 l^+ l^- decays as q_0^2 > 1.7 GeV^2, which improves to q_0^2 > 2.6 GeV^2 for a standard model-like sign b --> s gamma amplitude.
description: 23 pages, 11 figures; v2: Treatment of experimental uncertainties in likelihood-function in EOS fixed and constraints from scan on C_9, C_10 updated (Figs 5, 6, 7, 8 and Eqs 3.1, 3.2, 3.5 and 3.6). Main results and conclusions unchanged
PBS: A Unified Priority-Based CPU Scheduler
Creators: name: Feng, Hanhua
name: Misra, Vishal
name: Rubenstein, Daniel Stuart
Publisher: name: Columbia University
Year: 2006
Subjects: Computer science

description: A novel CPU scheduling policy is designed and implemented. It is a configurable policy in the sense that a tunable parameter is provided to change its behavior. With different settings of the parameter, this policy can emulate the first-come first-serve, the processing sharing, or the feedback policies, as well as different levels of their mixtures. This policy is implemented in the Linux kernel as a replacement of the default scheduler. The drastic changes of behaviors as the parameter changes are analyzed and simulated. Its performance is measured with the real systems by the workload generators and benchmarks.
Usenetfs: A Stackable File System for Large Article Directories
Creators: name: Zadok, Erez
name: Badulescu, Ion
Publisher: name: Columbia University
Year: 1998
Subjects: Computer science

description: The Internet has grown much in popularity in the past few years. Numerous users read USENET newsgroups daily for entertainment, work, study, and more. USENET News servers have seen a gradual increase in the traffic exchanged between them, to a point where the hardware and software supporting the servers is no longer capable of meeting demand, at which point the servers begin 'dropping' articles they could not process. The rate of this increase has been faster than software or hardware improvements were able to keep up,resulting in much time and effort spent by administrators upgrading their news systems. One of the primary reasons for the slowness of news servers has been the need to process many articles in very large flat directories representing newsgroups such as control. cancel and misc.jobs.offered. A large portion of the resources is spent on processing articles in these few newsgroups. Most Unix directories are organized as a linear unsorted sequence of entries. Large news groups can have hundreds of thousands of articles in one directory, resulting in significant delays processing any single article. Usenetfs is a file system that rearranges the directory structure from being flat to one with small directories containing fewer articles. By breaking the structure into smaller directories, it improves the performance of looking for, creating, or deleting files, since these operations occur on smaller directories. Usenetfs takes advantage of article numbers; knowing that file names representing articles are composed of digits helps to bound the size of the smaller directories. Usenetfs improves overall performance by at least 22\%for average news servers; common news server operations such as looking up, adding, and deleting articles are sped up by as much as several orders of magnitude. Usenetfs was designed and implemented as a stackable Vnode layer loadable kernel module. It operates by 'encapsulating' a client file system with a layer of directory management. To the process performing directory operations through a mounted Usenetfs, all directories appear flat; but when inspecting the underlying storage that it manages, small directories are visible. Usenetfs is small and is transparent to the user. It requires no change to News software, to other file systems, or to the rest of the operating system. Usenetfs is more portable than other native kernel-based file systems because it interacts with the Vnode interface which is similar on many different platforms.
A Comprehensive Performance Analysis of Proactive, Reactive and Hybrid MANETs Routing Protocols
Creators: name: Pandey, Kavita
name: Swaroop, Abhishek
Publisher: name: arXiv
Year: 2011
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: A mobile Ad-hoc network (MANET) is a dynamic multi hop wireless network established by a group of nodes in which there is no central administration. Due to mobility of nodes and dynamic network topology, the routing is one of the most important challenges in ad-hoc networks. Several routing algorithms for MANETs have been proposed by the researchers which have been classified into various categories, however, the most prominent categories are proactive, reactive and hybrid. The performance comparison of routing protocols for MANETs has been presented by other researcher also, however, none of these works considers proactive, reactive and hybrid protocols together. In this paper, the performance of proactive (DSDV), reactive (DSR and AODV) and hybrid (ZRP) routing protocols has been compared. The performance differentials are analyzed on the basis of throughput, average delay, routing overhead and number of packets dropped with a variation of number of nodes, pause time and mobility.