cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Thermodynamics of the exactly solvable spin-electron tetrahedral chain
Creators: name: Galisova, Lucia
Publisher: name: arXiv
Year: 2015
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: An exactly solvable spin-electron tetrahedral chain, where the Ising spins localized at nodal lattice sites regularly alternate with three equivalent lattice sites available for one mobile electron is considered. The system with ferromagnetic interaction between the Ising spins and electrons exhibits an enhanced magnetocaloric effect (MCE) in the limit $H/|J|\to 0$ when the entropy is very small, whereas the system with antiferromagnetic interaction between the Ising spins and electrons exhibits an enhanced MCE around the field $H/J=1$ when the entropy is sufficiently close to the value $S/2N = \ln[(1+\sqrt{5})/2]$. We study the thermodynamics of the system in these field regions.
description: 3 pages, 5 figures, contribution to proceedings of The Eleventh International School on Theoretical Physics Symmetry and Structural Properties of Condensed Matter (SSPCM14) in Rzesz\'ow, Poland
Stress Evolution in Lithium-ion Composite Electrodes during Electrochemical Cycling and Resulting Internal Pressures on the Cell Casing
Creators: name: Nadimpalli, Siva P. V.
name: Sethuraman, Vijay A.
name: Abraham, Daniel P.
name: Bower, Allan F.
name: Guduru, Pradeep R.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Composite cathode coatings made of a high energy density layered oxide (Li1.2Ni0.15Mn0.55Co0.1O2, theoretical capacity ~377 mAh/g), polyvinylidene fluoride (PVdF) binder, and electron-conduction additives, were bonded to an elastic substrate. An electrochemical cell, built by pairing the cathode with a capacity-matched graphite anode, was electrochemically cycled and the real-time average stress evolution in the cathode coating was measured using a substrate-curvature technique. Features in the stress evolution profile showed correlations with phase changes in the oxide, thus yielding data complementary to in situ XRD studies on this material. The stress evolution showed a complex variation with lithium concentration suggesting that the volume changes associated with phase transformations in the oxide are not monotonically varying functions of lithium concentration. The peak tensile stress in the cathode during oxide delithiation was approximately 1.5 MPa and the peak compressive stress during oxide lithiation was about 6 MPa. Stress evolution in the anode coating was also measured separately using the same technique. The measured stresses are used to estimate the internal pressures that develop in a cylindrical lithium-ion cell with jelly-roll electrodes.
description: 23 pages, 9 figures
title: Krajobraz i jego ocena w ujęciu fenomenologicznym
Creators: name: Bonenberg, Wojciech
Publisher: name: Publishing House of Poznan University of Technology
Year: 2022

description: Zeszyty Naukowe Politechniki Poznańskiej. Architektura, Urbanistyka, Architektura wnętrz, 8, 31-41
Mental Fatigue Measurement using Eye-based Features: A systematic review
Creators: name: Bafna, Tanya
name: Hansen, John
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Medicine and Health Sciences
subject: Engineering
subject: Biomedical Engineering and Bioengineering
subject: Eye-tracking
subject: Mental Fatigue
subject: Review

description: A systematic literature review on the eye-based features that can be used to assess mental fatigue, and their relation to mental fatigue is provided.
Teaching Evidence-based Medicine to undergraduate medical students: A cluster-randomized non-inferiority trial in times of COVID-19 comparing a blended learning to a flipped classroom approach.
Creators: name: Osowski, Sebastian
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Medicine and Health Sciences
subject: Medical Education
subject: EbM
subject: Evidence-based Medicine
subject: Flipped Classroom
subject: Medical Education

description: This is a retrospective study registration of an educational study. A cluster-randomized non-inferiority trial was conducted comparing a Flipped Classroom (FC) approach to a Blended Learning (BL) approach for teaching Evidence-based Medicine (EBM) to undergraduate medical students. Four curricular seminars with an average of twenty students were included. Two seminars were conducted following the FC approach and two following the BL approach. Primary endpoint was the increase of knowledge measured by comparable knowledge tests. To investigate student’s perception and acceptance, additional structured evaluations were collected. The study was conducted from February to May 2020.
Congress as a verb
Creators: name: Alexander, Don
Publisher: name: Vancouver Island University - Royal Roads University
Year: 1989
Subjects: subject: Bioregionalism--Congresses
subject: Human ecology--Congresses

description: An impression of the Third North American Bioregional Congress (NABC III) written shortly after the congress.
description: This article appears as part of "Ravens'-eye views".
description: This paper was originally published as: Alexander, D. (1989). Congress as a verb. In S. Zuckerman (Ed.), Proceedings of the Third North American Bioregional Congress held August 21 to 26, 1988 by the banks of the Cheakamus River, Paradise Valley, Squamish, Ish Bioregion, Pacific Cascadia (British Columbia, Canada) (pp. 6-7). (n.p.): North American Bioregional Congress.
description: Conference Proceedings: Third North American Bioregional Congress. Date: August 21-26, 1988. Location: Paradise Valley, British Columbia.
description: https://viuspace.viu.ca/bitstream/handle/10613/5112/Alexander.NABC.pdf?sequence=4
LONG TERM OUTCOMES OF ENDODONTIC TREATMENT PERFORMED WITH RESILON/EPIPHANY SYSTEM
Creators: name: Strange, Krista
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2018

description: The purpose of this retrospective cohort study was to evaluate the radiographic and clinical outcome of the Resilon/Epiphany TM obturation system and to determine if Resilon differed in healing. In part 1, 125 teeth were radiographically evaluated using Orstavik's PAI; 80 treated with Resilon and 45 with gutta percha. Age, gender, tooth position and number of months to follow up were documented and a multivariate analysis was performed. Resilon treated teeth were more likely to have a lesion at follow up when compared to gutta percha (p=0.009). Teeth presenting with pre-operative lesions, regardless of material used, were also more likely to present with a lesion at follow up (p=0.04). In part 2, 38 subjects were clinically evaluated. Bivariate analysis showed no difference in any clinical signs between Resilon and gutta percha and placement of a final restoration within 3 months of root canal completion, regardless of material, was beneficial (p=0.047).
A failed platform: the Citizen Consensus Conference travels to Chile
Creators: name: Ureta, Sebastián
Publisher: name: Technische Universität Berlin
Year: 2016
Subjects: subject: 500 Naturwissenschaften und Mathematik
subject: 600 Technik, Technologie
subject: Chile
subject: consensus conferences
subject: experiments
subject: platforms
subject: technologies of democracy

description: Dieser Beitrag ist mit Zustimmung des Rechteinhabers aufgrund einer (DFG geförderten) Allianz- bzw. Nationallizenz frei zugänglich.
description: This publication is with permission of the rights owner freely accessible due to an Alliance licence and a national licence (funded by the DFG, German Research Foundation) respectively.
description: This article starts by reviewing the setbacks that the recent Science and Technology Studies literature has identified in the functioning of technologies of democracy, the different arrangements that look to enact deliberation on technoscientific issues. Putting a focus on the Citizen Consensus Conference, it then proposes that several of these setbacks are related to the kind of "work" that these technologies are expected to do, identifying two kinds of it: performing a laboratory-based experiment and constituting a platform for the dissemination of facts. It then applies this framework to study a Citizen Consensus Conference carried out in Chile in 2003. After a detailed genealogy of the planning, implementation and afterlife of this exercise, the article concludes that several of the limitations experienced are derived from a "successful outcome" conceived as solely running a neat lab-based experiment, arguing for the need to incorporate its functioning as a platform with all the associated transformations and messiness.
Non reduced plane curve singularities with $b_1(F)=0$ and Bobadilla's question
Creators: name: Siersma, Dirk
Publisher: name: arXiv
Year: 2016
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14H50, 32S55, 32S05

description: If the first Betti number of the Milnor fibre of a plane curve singularity is zero, then the defining function is equivalent to $x^r$.
description: 4 pages, 1 figure
Swim or sink together: the potential of collective team identification and team member alignment for separating task and relationship conflicts
Creators: name: Schäffner, Mélanie
name: Huettermann, Hendrik
name: Gebert, Diether
name: Boerner, Sabine
name: Kearney, Eric
name: Song, Lynda Jiwen
Publisher: name: Technische Universität Berlin
Year: 2015
Subjects: subject: 150 Psychologie
subject: 300 Sozialwissenschaften
subject: task conflict
subject: relationship conflict
subject: collective team identification
subject: team member alignment
subject: cooperative goal interdependence

description: Dieser Beitrag ist mit Zustimmung des Rechteinhabers aufgrund einer (DFG geförderten) Allianz- bzw. Nationallizenz frei zugänglich.
description: This publication is with permission of the rights owner freely accessible due to an Alliance licence and a national licence (funded by the DFG, German Research Foundation) respectively.
description: This article investigates collective team identification and team member alignment (i.e., the existence of short- and long-term team goals and team-based reward structures) as moderators of the association between task and relationship conflicts. Being indicators of cooperative goal interdependence in teams, both moderators are hypothesized to mitigate the positive association between the two conflict types. Findings from 88 development teams confirm the moderating effect for collective team identification, but not for team member alignment. Moreover, the moderating role of collective team identification is found to be dependent on the level of task conflict: It is more effective in decoupling task and relationship conflicts at medium as compared with high or low levels of task conflict.
From "Dirac combs" to Fourier-positivity
Creators: name: Giraud, Bertrand G.
name: Peschanski, Robi
Publisher: name: arXiv
Year: 2015
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Motivated by various problems in physics and applied mathematics, we look for constraints and properties of real Fourier-positive functions, i.e. with positive Fourier transforms. Properties of the "Dirac comb" distribution and of its tensor products in higher dimensions lead to Poisson resummation, allowing for a useful approximation formula of a Fourier transform in terms of a limited number of terms. A connection with the Bochner theorem on positive definiteness of Fourier-positive functions is discussed. As a practical application, we find simple and rapid analytic algorithms for checking Fourier-positivity in 1- and (radial) 2-dimensions among a large variety of real positive functions. This may provide a step towards a classification of positive positive-definite functions.
description: 17 pages, 14 eps figures (overall 8 figures in the text)
Novel Characterization of Sulfated Polysaccharides Activity against Virulent Plasmodium falciparum PHISTb/RLP1 Protein
Creators: name: Mutisya, Jennifer
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Life Sciences

description: This project is giving first insights of Plasmodium PHIST proteins as drug targets and Sulfated Polysaccharides activity against one exported protein PHISTb/RLP1. The findings of this research support use of sulfated polysaccharides as lead compounds to generating next class of anti-malarials.
On the Role of Elastic Strain on Electrocatalysis of Oxygen Reduction Reaction on Pt
Creators: name: Sethuraman, Vijay A.
name: Vairavapandian, Deepa
name: Lafouresse, Manon C.
name: Maark, Tuhina A.
name: Karan, Naba
name: Sun, Shouheng
name: Bertocci, Ugo
name: Peterson, Andrew A.
name: Stafford, Gery R.
name: Guduru, Pradeep R.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The effect of elastic strain on catalytic activity of platinum (Pt) towards oxygen reduction reaction (ORR) is investigated through de-alloyed Pt-Cu thin films; stress evolution in the de-alloyed layer and the mass of the Cu removed are measured in real-time during electrochemical de-alloying of (111)-textured thin-film PtCu (1:1, atom %) electrodes. In situ stress measurements are made using the cantilever-deflection method and nano-gravimetric measurements are made using an electrochemical quartz crystal nanobalance. Upon de-alloying via successive voltammetric sweeps between -0.05 and 1.15 V vs. standard hydrogen electrode, compressive stress develops in the de-alloyed Pt layer at the surface of thin-film PtCu electrodes. The de-alloyed films also exhibit enhanced catalytic activity towards ORR compared to polycrystalline Pt. In situ nanogravimetric measurements reveal that the mass of de-alloyed Cu is approximately 210 +/- 46 ng/cm2, which corresponds to a de-alloyed layer thickness of 1.2 +/- 0.3 monolayers or 0.16 +/- 0.04 nm. The average biaxial stress in the de-alloyed layer is estimated to be 4.95 +/- 1.3 GPa, which corresponds to an elastic strain of 1.47 +/- 0.4%. In addition, density functional theory calculations have been carried out on biaxially strained Pt (111) surface to characterize the effect of strain on its ORR activity; the predicted shift in the limiting potentials due to elastic strain is found to be in good agreement with the experimental shift in the cyclic voltammograms for the dealloyed PtCu thin film electrodes.
description: 30 pages, 15 figures
Branching Bisimilarity of Normed BPA Processes as a Rational Monoid
Creators: name: Jancar, Petr
Publisher: name: arXiv
Year: 2016
Subjects: subject: Logic in Computer Science (cs.LO)
subject: Formal Languages and Automata Theory (cs.FL)
subject: FOS: Computer and information sciences

description: The paper presents an elaborated and simplified version of the structural result for branching bisimilarity on normed BPA (Basic Process Algebra) processes that was the crux of a conference paper by Czerwinski and Jancar (arxiv 7/2014 and LiCS 2015). That paper focused on the computational complexity, and a NEXPTIME-upper bound has been derived; the authors built on the ideas by Fu (ICALP 2013), and strengthened his decidability result. Later He and Huang announced the EXPTIME-completeness of this problem (arxiv 1/2015, and LiCS 2015), giving a technical proof for the EXPTIME membership. He and Huang indirectly acknowledge the decomposition ideas by Czerwinski and Jancar on which they also built, but it is difficult to separate their starting point from their new ideas. One aim here is to present the previous decomposition result of Czerwinski and Jancar in a technically new framework, noting that branching bisimulation equivalence on normed BPA processes corresponds to a rational monoid (in the sense of [Sakarovitch, 1987]); in particular it is shown that the mentioned equivalence can be decided by normal-form computing deterministic finite transducers. Another aim is to provide a complete description, including an informal overview, that should also make clear how Fu's ideas were used, and to give all proofs in a form that should be readable and easily verifiable.
description: The version accepted to LMCS
In-house pretesting with Qualitative Pretest Interviews (QPI) - the example of SHARE
Creators: name: Hunsicker, Charlotte
name: Bethmann, Arne
name: Buschle, Christina
name: Reiter, Herwig
Publisher: name: Zenodo
Year: 2023

description: The pretesting of draft questionnaires is usually outsourced to survey agencies and supervised by research institutes. The paper introduces the rationale behind the alternative of establishing an in-house team of embedded interviewers for doing Qualitative Pretest Interviews (QPI) and illustrates the first steps of its establishment in the frame of the Survey of Health, Aging and Retirement in Europe (SHARE). SHARE is a multi-disciplinary and cross-national panel research infrastructure for studying the effects of health, social, economic and environmental policies over the life-course in 28 European countries and Israel.

 The QPI is a novel method of pretest interviewing for improving the quality of standardised research. By advocating a comprehensive consideration of qualitative-interpretive methodology, the QPI transfers the idea of intersubjective understanding in everyday communication to the situation of pretest interviewing. Following the requirements of qualitative research the QPI relies heavily on the familiarity of researchers and interviewers with all aspects of the research topic as well as the purpose of single items and item batteries. Therefore, the establishment and training of an in-house team for pretest-interviewing combines the advantages of substantive expertise with the possibility of immediate and stepwise revision of standardised instruments. This alternative can improve, accelerate and focus the process of pretesting. The paper concludes with a discussion of advantages and limits of this alternative.
The effect of the isolite suction on aerosols and splatter during ultrasonic scaling
Creators: name: Holloman, Jessica Laurin
Publisher: name: University of North Carolina at Chapel Hill
Year: 2014

description: This study compared the IsoliteTM and saliva ejector on aerosol reduction during ultrasonic scaling. Fifty participants were randomly assigned to control (n=25, saliva ejector) or test groups (n=25, IsoliteTM). Plaque extent scores were recorded and aerosols were collected both during (timed period) and post (35 minute period) ultrasonic scaling in buffer in Petri dishes placed six inches from the participant’s mouth. Participants were surveyed regarding device acceptance. The during and post suspensions were plated to blood agar plates and recoverable colonies (CFU) were counted following anaerobic incubation. Significant contamination occurred during ultrasonic scaling in both device groups, as indicated by high CFU and the identification of strict oral anaerobes on all plates. A Student t-test revealed that the test device did not reduce aerosol contamination compared to the control device (p=0.25). Additional caution should be exercised with these devices to reduce the risk of exposure to potential pathogens.
Built Environment and Physical Activity Scoping Review
Creators: name: Rocke, Kern
name: Howitt, Christina
name: Brown, Catherine
name: Whiteman, Stephanie
name: Hambleton, Ian
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Environmental Public Health
subject: Architecture
subject: FOS: Civil engineering
subject: Public Health
subject: Medicine and Health Sciences
subject: Epidemiology
subject: Community Health and Preventive Medicine
subject: Environmental Design
subject: Active commuting
subject: Active transport
subject: Built Environment
subject: Caribbean
subject: Geographic Information Systems
subject: Latin America
subject: Physical Activity
subject: Small Island Developing States
subject: Walkability
subject: Walking

description: The purpose of this scoping review is identify, map, characterize individual features of the built environment and assess the association of each feature with PA outcomes (self-reported/objective) in Small Island Developing States and Latin American countries.
DEMOCRACY ON THE BALLOT: DIRECT DEMOCRACY IN CALIFORNIA AND THE UNITED KINGDOM
Creators: name: Breaux, Cory
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2018

description: This essay compares direct democratic institutions between two cases:  ballot initiatives in California, and elite-controlled referendums in the United Kingdom (UK).  The relationship between direct democratic institutions and Lijphart’s majoritarian and consensus models of democracy is outlined in relation to the two cases, additionally considering the impact that these institutions can have on voter choice and deliberation in democratic states.  The essay finds that though the direct democratic institutions of California and the UK are markedly different, neither functions as an entirely majoritarian or entirely consensual device; instead, the institutional features would appear to function as an additional dimension of democracy, in line with Vatter and Bernauer’s (2009) suggestion.  Further, direct democratic institutions in both cases also present opportunities for negative impacts on voter choice and the deliberative democratic process.
Learn on Source, Refine on Target:A Model Transfer Learning Framework with Random Forests
Creators: name: Segev, Noam
name: Harel, Maayan
name: Mannor, Shie
name: Crammer, Koby
name: El-Yaniv, Ran
Publisher: name: arXiv
Year: 2015
Subjects: subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: We propose novel model transfer-learning methods that refine a decision forest model M learned within a "source" domain using a training set sampled from a "target" domain, assumed to be a variation of the source. We present two random forest transfer algorithms. The first algorithm searches greedily for locally optimal modifications of each tree structure by trying to locally expand or reduce the tree around individual nodes. The second algorithm does not modify structure, but only the parameter (thresholds) associated with decision nodes. We also propose to combine both methods by considering an ensemble that contains the union of the two forests. The proposed methods exhibit impressive experimental results over a range of problems.
description: 2 columns, 14 pages, TPAMI submitted
The Influence of Electoral Endorsements on Vote Choice in Canadian Elections
Creators: name: Wigginton, Michael
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2017
Subjects: newspaper endorsements
vote choice
elections
Canada
media concentration
electoral endorsements
newspapers
agenda setting
editorals
mass media effects

description: In the final days leading up to elections, many major newspapers in Canada and around the world depart from the principle of media neutrality and openly support a particular political party. Do these overt attempts at persuasion by trusted institutions actually affect the vote choice of their readership, and are these effects felt evenly across the population? In this thesis, I examine the 2011 and 2015 Canadian federal elections using data from the 2011 Canadian Election Study and the 2015 Making Electoral Democracy Work project. I find voters to be significantly influenced by their newspaper’s endorsement in the 2015 sample, and find that this influence primarily influences those who identify with no party. Although the influence is modest in size, with the geographic concentration of newspaper readership it is potentially large enough to influence outcomes in individual ridings. Combined with my finding that newspaper endorsements are far from evenly distributed across parties, this has troubling implications for Canadian democracy.
SITE: The Simple Internet of Things Enabler for Smart Homes
Creators: name: Hafidh, Basim
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2017
Subjects: Internet of Things
Smart Homes
End User Development
Smart Objects

description: This thesis presents the Simple Internet of Things Enabler (SITE), a smart home solution that allows users to specify and centrally control IoT smart objects. Unlike most existing systems, SITE supports End-User Development (EUD). It includes features that make the system accessible to users that do not possess a background in Information Technology (IT). Hence, it defines a simple language for the specification of control rules for smart objects. It also provides a user interface to graphically illustrate data received from smart objects. Furthermore, we present the SITE architecture and describe the components that enable users to define, register, and operate smart objects within a smart home environment. Since deploying applications on the cloud renders many advantages pertaining to data security, robustness, and elasticity of resources, we additionally propose a cloud-based architecture for SITE. In this case, SITE acts as a service hosted on a cloud platform that realizes monitoring and control of a smart home remotely. Moreover, since most of the objects in any environment are not inherently smart, we propose a framework that affords “everyday” objects the necessary modules to measure and report their state. Hence, users realize the smart objects using a transducer network framework that supports the amalgamation of multiple transducers into a single smart object. To make these objects easily reconfigurable, we apply a plug and play mechanism to enable the clustering of any number of transducers. We propose an algorithm that dynamically detects added and removed transducers from a smart object. To assess the usability of SITE, we conduct an empirical study involving 20 participants belonging to two user groups: users with technical training (IT users) and users without technical training (Non-IT users). We demonstrate that both user groups can satisfactorily build smart objects and define control rules in a smart home environment using SITE.
Spin dynamics in the high-field phases of volborthite
Creators: name: Yoshida, M.
name: Nawa, K.
name: Ishikawa, H.
name: Takigawa, M.
name: Jeong, M.
name: Kramer, S.
name: Horvatic, M.
name: Berthier, C.
name: Matsui, K.
name: Goto, T.
name: Kimura, S.
name: Sasaki, T.
name: Yamaura, J.
name: Yoshida, H.
name: Okamoto, Y.
name: Hiroi, Z.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We report single-crystal 51V NMR studies on volborthite Cu3V2O7(OH)2 2H2O, which is regarded as a quasi-two-dimensional frustrated magnet with competing ferromagnetic and antiferromagnetic interactions. In the 1/3 magnetization plateau above 28 T, the nuclear spin-lattice relaxation rate 1/T1 indicates an excitation gap with a large effective g factor in the range of 4.6-5.9, pointing to magnon bound states. Below 26 T where the gap has closed, the NMR spectra indicate small internal fields with a Gaussian-like distribution, whereas 1/T1 shows a power-law-like temperature dependence in the paramagnetic state, which resembles a slowing down of spin fluctuations associated with magnetic order. We discuss the possibility of an exotic spin state caused by the condensation of magnon bound states below the magnetization plateau.
description: 10 pages, 13 figures
Simultaneous linear optics and coupling correction for storage rings with turn-by-turn beam position monitor data
Creators: name: Yang, Xi
name: Huang, Xiaobiao
Publisher: name: arXiv
Year: 2015
Subjects: subject: Accelerator Physics (physics.acc-ph)
subject: FOS: Physical sciences

description: We propose a method to simultaneously correct linear optics errors and linear coupling for storage rings using turn-by-turn (TbT) beam position monitor (BPM) data. The independent component analysis (ICA) method is used to isolate the betatron normal modes from the measured TbT BPM data. The betatron amplitudes and phase advances of the projections of the normal modes on the horizontal and vertical planes are then extracted, which, combined with dispersion measurement, are used to fit the lattice model. The fitting results are used for lattice correction. The method has been successfully demonstrated on the NSLS-II storage ring.
Investigation of Initial Lithiation of Silicon (100) Using Solid-State 7Li NMR
Creators: name: Song, Myeonghun
name: Nadimpalli, Siva P. V.
name: Sethuraman, Vijay A.
name: Chon, Michael J.
name: Guduru, Pradeep R.
name: Wang, Li-Qiong
Publisher: name: arXiv
Year: 2015
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Structural changes in amorphous LixSi during the initial lithiation of single crystal Si to amorphous LixSi were investigated as a function of Li flux and total charge using solid-state 7Li nuclear magnetic resonance (NMR) spectroscopy. Single crystal (100) Si wafers were used as a model system in this study, as the Li flux could be precisely controlled and uniformly distributed across the surface of the wafer. It was observed that peak shifts in solid-state 7Li NMR spectra varied as a function of the Li flux during the initial lithiation and stayed constant for samples of the same Li flux regardless of the total charge applied to the electrodes. We conclude from these results that the Li concentration in LixSi stays constant for a given flux regardless of the total coulombic charge applied to the electrode. The results from this study help better understand the kinetics, the reaction mechanisms, and the kinetic modeling of chemical reactions at the reaction front during the initial lithiation of Si (100).
description: 17 pages, 7 figures
Along Ethnic Lines: A Quantitative Analysis of Football Athletes' Interest in Coaching as a Career
Creators: name: Bernhard, Laura
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2010

description: This study posed two questions: first, are there any significant differences related to ethnicity in the five social cognitive career theory factors? Second, is there a significant difference between an athlete's interest and intention in the coaching career based on the ethnicity of his position coach or coordinator? A sample of student-athletes (N=134) who were members of the football team at three Division I institutions in the Southeast were targeted. The results indicated differences between black and white athletes for both self-efficacy (p=.009) and barriers (p<.0005). This supported the hypotheses that black athletes would have lower self-efficacy and perceive higher barriers to coaching as a career. In seeming contradiction, there were no significant differences between the athletes' interest in and intention to enter coaching as a profession. There were no significant differences between the athlete's interest in and intention to coaching as a career based on the ethnicity of their position coach or coordinator.
Minimal dilatation in Penner's construction
Creators: name: Liechti, Livio
Publisher: name: arXiv
Year: 2016
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 37E30, 20F55, 57M27

description: For all orientable closed surfaces, we determine the minimal dilatation among mapping classes arising from Penner's construction. We also discuss generalisations to surfaces with punctures.
description: 11 pages, 6 figures
Implementing energy status in head-down cockpit displays: impact of augmented energy information on pilot’s performance
Creators: name: Müller, Simon
name: Manzey, Dietrich
name: Schreiter, Karolin
name: Luckner, Robert
Publisher: name: Technische Universität Berlin
Year: 2015
Subjects: subject: 610 Medizin und Gesundheit
subject: total energy angle
subject: energy displays
subject: flight simulator study
subject: eye tracking
subject: flight precision
subject: situation awareness
subject: ILS approach

description: Dieser Beitrag ist mit Zustimmung des Rechteinhabers aufgrund einer (DFG geförderten) Allianz- bzw. Nationallizenz frei zugänglich.
description: This publication is with permission of the rights owner freely accessible due to an Alliance licence and a national licence (funded by the DFG, German Research Foundation) respectively.
description: It is safety critical for pilots to be aware of the aircraft’s energy state in terms of proper altitude and airspeed. A loss of energy awareness is an important human factors issue in modern civil aircraft. In order to maintain the energy awareness and support the manual flying skills, several cockpit display concepts suggest to augment the current energy status of the aircraft on primary flight displays in terms of the total energy angle. An experiment was carried out to determine which effect this additional energy information has on pilots’ flight path control, instrument scanning, and situation awareness. Outcomes of the study show a significant shift of the scanning pattern from airspeed, altitude scale, and engine parameter towards the center of the primary flight display with unchanged situation awareness. In addition, pilots are better able to maintain given speed targets.
Compaction of bacterial genomic DNA: Clarifying the concepts
Creators: name: Joyeux, Marc
Publisher: name: arXiv
Year: 2015
Subjects: subject: Biomolecules (q-bio.BM)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: The unconstrained genomic DNA of bacteria forms a coil, which volume exceeds 1000 times the volume of the cell. Since prokaryotes lack a membrane-bound nucleus, in sharp contrast with eukaryotes, the DNA may consequently be expected to occupy the whole available volume when constrained to fit in the cell. Still, it has been known for more than half a century that the DNA is localized in a well defined region of the cell, called the nucleoid, which occupies only 15% to 25% of the total volume. Although this problem has focused the attention of many scientists for the past decades, there is still no certainty concerning the mechanism that enables such a dramatic compaction. The goal of this Topical Review is to take stock of our knowledge on this question by listing all possible compaction mechanisms with the proclaimed desire to clarify the physical principles they are based upon and discuss them in the light of experimental results and the results of simulations based on coarse-grained models. In particular, the fundamental differences between psi-condensation and segregative phase separation and between the condensation by small and long polycations are highlighted. This review suggests that the importance of certain mechanisms, like supercoiling and the architectural properties of DNA-bridging and DNA-bending nucleoid proteins, may have been overestimated, whereas other mechanisms, like segregative phase separation and the self-association of nucleoid proteins, as well as the possible role of the synergy of two or more mechanisms, may conversely deserve more attention.
description: published as a Topical Review but contains also original research results
Bidirectional flow measurement based on the differential pressure method for surge analysis on a small centrifugal compressor
Creators: name: Werner, Moritz
name: Baar, Roland
name: Haluska, P.
name: Sandor, I.
Publisher: name: Technische Universität Berlin
Year: 2016
Subjects: subject: 620 Ingenieurwissenschaften und Maschinenbau
subject: centrifugal compressor
subject: flow measurement
subject: flowmeter
subject: Venturi effect
subject: surge

description: Dieser Beitrag ist mit Zustimmung des Rechteinhabers aufgrund einer (DFG geförderten) Allianz- bzw. Nationallizenz frei zugänglich.
description: This publication is with permission of the rights owner freely accessible due to an Alliance licence and a national licence (funded by the DFG, German Research Foundation) respectively.
description: To obtain a high temporal resolution of mass flow data, a flowmeter based on the differential pressure method has been developed. It is capable of detecting negative flow for investigations of dynamic effects in small centrifugal compressors used for turbocharging automotive internal combustion engines. Experiments were performed at a hot gas test bench focusing on the surge characteristics at different turbocharger speeds and the influence of volume modifications downstream of the compressor. Instantaneous operating points could be traced in the compressor map including the typical orbits at deep surge resulting from the cyclic character of the phenomenon.
Role of the student professional association in mentoring dental hygiene students for the future
Creators: name: Furgeson, Danielle Rulli
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2007

description: The purpose of this study was to determine the perceived role of the Student American Dental Hygienists' Association (SADHA) in mentoring dental hygiene students for the future. After IRB exemption a pilot tested questionnaire was administered using Survey Monkey, an online survey website, to 277 individual contacts at American Dental Association (ADA) accredited dental hygiene (DH) programs. A response rate of 68% was achieved (n=186). Eighty percent indicated offering no mentoring opportunities, while 58.3% felt they actively mentor through SADHA. Respondents ranked community service/philanthropy as the main focus of SADHA. Baccalaureate degree completion programs offer more mentoring opportunities (p=<.001) while baccalaureate programs offer additional topics from guest speakers beyond dental product presentations (p=.038). Efforts should be made to increase perception of the importance of the student professional association through the development of Best Practices for SADHA. This could benefit students by increasing mentoring opportunities and partnerships with local ADHA organizations.
title: Każde zwycięstwo pociąga za sobą ofiary. Pochówki wojenne 77 lat po II wojnie światowej
Creators: name: Bardzińska-Bonenberg, Teresa
name: Grygorowicz-Kosakowska, Klaudia
Publisher: name: Publishing House of Poznan University of Technology
Year: 2022

description: Zeszyty Naukowe Politechniki Poznańskiej. Architektura, Urbanistyka, Architektura wnętrz, 8, 119-133
Second-Order Stochastic Optimization for Machine Learning in Linear Time
Creators: name: Agarwal, Naman
name: Bullins, Brian
name: Hazan, Elad
Publisher: name: arXiv
Year: 2016
Subjects: subject: Machine Learning (stat.ML)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: First-order stochastic methods are the state-of-the-art in large-scale machine learning optimization owing to efficient per-iteration complexity. Second-order methods, while able to provide faster convergence, have been much less explored due to the high cost of computing the second-order information. In this paper we develop second-order stochastic methods for optimization problems in machine learning that match the per-iteration cost of gradient based methods, and in certain settings improve upon the overall running time over popular first-order methods. Furthermore, our algorithm has the desirable property of being implementable in time linear in the sparsity of the input data.
Trajektorienplanung zur Kollisionsvermeidung im Straßenverkehr
Creators: name: Keller, Martin
Publisher: name: Technische Universität Dortmund
Year: 2017
Subjects: subject: Fahrerassistenzsysteme (ADAS)
subject: Automatisiertes Fahren
subject: Trajektorienplanung und -realisierung
subject: 620

description: In kritischen Situationen sind viele Fahrer von PKWs mit der Fahrzeugführungsaufgabe überfordert. Die Unfallzahlen konnten bis 2013 auch durch die Einführung von aktiven Fahrerassistenzsystemen wie ABS, ASR und ESC gesenkt werden. In den folgenden Jahren ist ein leichter Anstieg zu verzeichnen. Um die Unfallzahlen wieder zu senken, werden neue Fahrerassistenzsysteme benötigt, die neben fahrdynamischen Größen auch Informationen über das Fahrzeugumfeld miteinbeziehen. Dies kann durch assistierende Funktionen, welche der Fahrer im Fehlerfall übersteuern kann, und/oder durch automatisierte Fahrfunktionen realisiert werden. Die Arbeit beschreibt und vergleicht vier verschiedene Verfahren zur Fahrzeugführung, die zur Kollisionsvermeidung im Straßenverkehr eingesetzt werden können. Das Bahnfolgeverfahren verwendet eine analytische Funktion zur Beschreibung der Ausweichbahn und eine Folgeregelung zur Führung des Fahrzeugs entlang der Bahn. Es ist ein einfaches Konzept, welches mit wenig Rechenleistung auskommt, sich aber nicht an viele verschiedene Situationen anpassen lässt. Deshalb wird das Online-Trajektorienoptimierungsverfahren entwickelt. Zur Berechnung der Ausweichtrajektorien wird ein Gütemaß minimiert, welches Anteile zur Kollisionsvermeidung und zur Minimierung fahrdynamischer Reaktionen enthält. Die Realisierung der fortlaufend neu geplanten Trajektorie wird mit einer unterlagerten Geschwindigkeits- und Kurswinkelregelung durchgeführt. Das modellprädiktive Planungs- und Regelungsverfahren löst analog zum Online-Trajektorienoptimierungsverfahrens in jedem Abtastschritt ein Optimierungsproblem. Die kollisionsfreie Trajektorie wird zusätzlich an die Dynamikgleichungen eines Einspurmodells angepasst. Das Optimierungsproblem ist daher ein Optimalsteuerungsproblem, dessen Lösung neben der optimalen Trajektorie auch die zugehörigen Stellgrößen enthält. Die bisher getrennt behandelten Probleme, Trajektorienplanung und Folgeregelung, werden also in einem Schritt gelöst. Der Nachteil dieses Verfahrens ist der nochmals höhere Rechenaufwand im Vergleich zum Online-Trajektorienoptimierungsverfahren. Durch die Beschränkung auf konstante Stellgrößen während der Prädiktion und eine grobe Stellgrößendiskretisierung weist das modellprädiktive Trajektorienscharverfahren eine deutlich niedrigere Rechenlast auf. Die Vorteile der modellprädiktiven simultanen Planung und Regelung bleiben erhalten, jedoch können auf Grund des kurzen Prädiktionshorizontes weiter entfernte Hindernisse nicht in der Planung berücksichtigt werden. Durch die adaptive Wahl der Diskretisierung wird auch im stationären Zustand eine hohe Regelungsgüte erreicht. Der abschließende Vergleich durch eine Nutzwertanalyse zeigt, dass die vier Verfahren, in Abhängigkeit des Anwendungsfalles, unterschiedlich gut geeignet sind.
A magnetic diverter for charged particle background rejection in the SIMBOL-X telescope
Creators: name: Spiga, D.
name: Fioretti, V.
name: Bulgarelli, A.
name: Dell'Orto, E.
name: Foschini, L.
name: Malaguti, G.
name: Pareschi, G.
name: Tagliaferri, G.
name: Tiengo, A.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Minimization of charged particle background in X-ray telescopes is a well known issue. Charged particles (chiefly protons and electrons) naturally present in the cosmic environment constitute an important background source when they collide with the X-ray detector. Even worse, a serious degradation of spectroscopic performances of the X-ray detector was observed in Chandra and Newton-XMM, caused by soft protons with kinetic energies ranging between 100 keV and some MeV being collected by the grazing-incidence mirrors and funneled to the detector. For a focusing telescope like SIMBOL-X, the exposure of the soft X-ray detector to the proton flux can increase significantly the instrumental background, with a consequent loss of sensitivity. In the worst case, it can also seriously compromise the detector duration. A well-known countermeasure that can be adopted is the implementation of a properly-designed magnetic diverter, that should prevent high-energy particles from reaching the focal plane instruments of SIMBOL-X. Although Newton-XMM and Swift-XRT are equipped with magnetic diverters for electrons, the magnetic fields used are insufficient to effectively act on protons. In this paper, we simulate the behavior of a magnetic diverter for SIMBOL-X, consisting of commercially-available permanent magnets. The effects of SIMBOL-X optics is simulated through GEANT4 libraries, whereas the effect of the intense required magnetic fields is simulated along with specifically-written numerical codes in IDL.
iFO (infrared Fish Observation) – an open source low-cost infrared underwater video system
Creators: name: Hermann, Andreas
name: Chladek, Jerome
name: Stepputtis, Daniel
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Mechanical Engineering
subject: FOS: Mechanical engineering
subject: Electrical and Electronics
subject: Physical Sciences and Mathematics
subject: Oceanography and Atmospheric Sciences and Meteorology
subject: Environmental Monitoring
subject: Environmental Sciences
subject: Ocean Engineering
subject: Electrical and Computer Engineering
subject: Engineering
subject: Oceanography
subject: FOS: Earth and related environmental sciences
subject: animal behaviour
subject: fish observation
subject: infrared camera system
subject: marine life observation
subject: open source
subject: underwater video system

description: In this project we present a low-budget under water infrared video observation system (camera, lamps, webserver, scheduler, motion detection etc.) with full documentation and sources to easily rebuild it. We briefly outline a typical application. We use this system for studies of fishery behaviour in fish tanks and at open sea. The system can be used in other environments and purposes, as well: e.g. for other uses in harsh environments with the current housing or in any other environments with adapted housings.
The Proteostasis Function of the Saccharomyces Cerevisiae Metacaspase Yca1
Creators: name: Shrestha, Amit
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2017
Subjects: Proteostasis
Metacaspase
Ubiquitin
Rsp5
Yca1

description: In addition to apoptosis, metacapases function to regulate various other processes that promote and sustain life. For example, the Saccharomyces cerevisiae metacaspase Yca1 promotes cellular fitness by regulating insoluble protein levels. However, the mechanism(s) that regulate this proteostasis function for Yca1 have remained elusive. Here, using proteomics coupled to protein interaction studies, we describe a role for Yca1 in restraining deposition to the insoluble proteome and further identify a post-translational regulatory mechanism for modulating Yca1 function. Our initial analyses uncovered a role for Yca1 in aggregate assembly where Yca1, in coordination with the Cdc48 chaperone, regulates the composition of the insoluble proteome. Interestingly, loss of Yca1 was correlated with reduced sequestration of proteins related to ribosomal and translational processes in the insoluble protein fraction during heat stress. Subsequent proteomic analyses identified a regulatory mechanism for Yca1 mediated by the ubiquitin system, a feature that was instrumental for limiting insoluble protein content. Specifically, we noted K355 ubiquitination and S346 phosphorylation as key modifications that directed Yca1 function to maintain proteostasis. Loss of function mutations at these sites led to increased retention of insoluble protein and increased vacuolar structures. Surprisingly, loss of Yca1 also affected ubiquitin homeostasis in vivo as observed by reduced levels of low molecular weight free ubiquitin. Upon further analysis, we observed that the ubiquitin precursor protein Rsp31 was cleaved by Yca1 suggesting a possible role for Yca1 in de novo ubiquitin synthesis. Together, these analyses suggest that post-translational modifications of Yca1 are critical regulatory features for this protease, and that this enzyme regulates cell proteostasis in combination with other chaperone and protein degradation machinery.