cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Perceived Peer Exclusion as Predictor of Students' Help-Seeking Strategies in Higher Education: Differences by Gender and University Major
Creators: name: Zander, Lysann
name: Höhne, Elisabeth
Publisher: name: Göttingen : Hogrefe
Year: 2021
Subjects: subject: computer science
subject: education
subject: help-seeking
subject: higher education
subject: social and academic exclusion
subject: Dewey Decimal Classification::100 | Philosophie::150 | Psychologie
subject: Dewey Decimal Classification::300 | Sozialwissenschaften, Soziologie, Anthropologie::370 | Erziehung, Schul- und Bildungswesen

description: Feeling excluded by fellow students may be associated with lower levels of adaptive help-seeking. In a cross-sectional study, we compared self-reported help-seeking strategies (autonomy-oriented, dependency-oriented, help-seeking avoidance) among N = 418 students in 25 seminar and tutorial groups in the undergraduate introductory courses of two subject domains: computer science and education. Analyses showed that, overall, students reported lower autonomy-oriented help-seeking and higher help-seeking avoidance in computer science than in education. In computer science, perceived peer exclusion predicted more help-seeking avoidance among both male and female students and less autonomy-oriented help-seeking among females. In education, however, perceived peer exclusion was a significant predictor of both male and female students' lower autonomy-oriented help-seeking. Results suggest that, in computer science, help-seeking appears to have an "image problem" signaling competence-related inferiority rather than being a form of effective selfregulated learning. Implications for enhancing adaptive help exchange cultures in computer science are discussed.
Analytic and numerical bootstrap for the long-range Ising model
Creators: name: Behan, Connor
name: Lauria, Edoardo
name: Nocchi, Maria
name: van Vliet, Philine
Publisher: name: Deutsches Elektronen-Synchrotron, DESY, Hamburg
Year: 2023
Subjects: dimension, 2
dimension, 3
numerical calculations, Monte Carlo
bootstrap
long-range
operator product expansion
critical phenomena
short-range
family
Ising model
kink
perturbation theory
crossing

description: We combine perturbation theory with analytic and numerical bootstrap techniques to study the critical point of the long-range Ising (LRI) model in two and three dimensions. This model interpolates between short-range Ising (SRI) and mean-field behaviour. We use the Lorentzian inversion formula to compute infinitely many three-loop corrections in the two-dimensional LRI near the mean-field end. We further exploit the exact OPE relations that follow from bulk locality of the LRI to compute infinitely many two-loop corrections near the mean-field end, as well as some one-loop corrections near SRI. By including such exact OPE relations in the crossing equations for LRI we set up a very constrained bootstrap problem, which we solve numerically using SDPB. We find a family of sharp kinks for two- and three-dimensional theories which compare favourably to perturbative predictions, as well as some Monte Carlo simulations for the two-dimensional LRI.
The unlikely rise of masking interferometry: leading the way with 19th century technology
Creators: name: Tuthill, Peter G.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The exquisite precision delivered by interferometric techniques is rapidly being applied to more and more branches of optical astronomy. One particularly successful strategy to obtain structures at the scale of the diffraction limit is Aperture Masking Interferometry, which is presently experience a golden age with implementations at a host of large telescopes around the world. This startlingly durable technique, which turns 144 years old this year, presently sets the standard for the recovery of faint companions within a few resolution elements from the core of a stellar point spread function. This invited review will give a historical introduction and overview of the modern status of the technique, the science being delivered, and prospects for new advances and applications.
description: This is an invited review for SPIE Amsterdam in 2012. It presents a brief history of masking interferometry, and some thoughts on future progress. 11 pages, 4 figs, lots of refs
Ein optischer Frequenzstandard mit lasergekühlten Magnesiumatomen
Creators: name: Friebe, Jan
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2010
Subjects: subject: Atom interferometry
subject: magnesium intercombination transition
subject: optical frequency standard
subject: Atominterferometrie
subject: Magnesium Interkombinationsübergang
subject: optischer Frequenzstandard
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: [no abstract]
Alternating minimal energy methods for linear systems in higher dimensions. Part II: Faster algorithm and application to nonsymmetric systems
Creators: name: Dolgov, Sergey V.
name: Savostyanov, Dmitry V.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: 15A69, 33F05, 65F10

description: In this paper we accomplish the development of the fast rank-adaptive solver for tensor-structured symmetric positive definite linear systems in higher dimensions. In [arXiv:1301.6068] this problem is approached by alternating minimization of the energy function, which we combine with steps of the basis expansion in accordance with the steepest descent algorithm. In this paper we combine the same steps in such a way that the resulted algorithm works with one or two neighboring cores at a time. The recurrent interpretation of the algorithm allows to prove the global convergence and to estimate the convergence rate. We also propose several strategies, both rigorous and heuristic, to compute new subspaces for the basis enrichment in a more efficient way. We test the algorithm on a number of high-dimensional problems, including the non-symmetrical Fokker-Planck and chemical master equations, for which the efficiency of the method is not fully supported by the theory. In all examples we observe a convincing fast convergence and high efficiency of the proposed method.
description: Submitted to SIAM J Sci Comp
title: Metagenomic Insights Into Functional and Taxonomic Compositions of an Activated Sludge Microbial Community Treating Leachate of a Completed Landfill: A Pathway-Based Analysis
Creators: name: Yasuda, Shohei
name: Suenaga, Toshikazu
name: Orschler, Laura
name: Agrawal, Shelesh
name: Lackner, Susanne
name: Terada, Akihiko
Publisher: name: Frontiers Media S.A.
Year: 2023

description: Upcycling wastes into valuable products by mixed microbial communities has recently received considerable attention. Sustainable production of high-value substances from one-carbon (C1) compounds, e.g., methanol supplemented as an external electron donor in bioreactors for wastewater treatment, is a promising application of upcycling. This study undertook a gene-centric approach to screen valuable production potentials from mixed culture biomass, removing organic carbon and nitrogen from landfill leachate. To this end, the microbial community of the activated sludge from a landfill leachate treatment plant and its metabolic potential for the production of seven valuable products were investigated. The DNA extracted from the activated sludge was subjected to shotgun metagenome sequencing to analyze the microbial taxonomy and functions associated with producing the seven products. The functional analysis confirmed that the activated sludge could produce six of the valuable products, ectoine, polyhydroxybutyrate (PHB), zeaxanthin, astaxanthin, acetoin, and 2,3-butanediol. Quantification of the detected functional gene hit numbers for these valuable products as a primary trial identified a potential rate-limiting metabolic pathway, e.g., conversion of L-2,4-diaminobutyrate into N-γ-acetyl-L2,4,-diaminobutyrate during the ectoine biosynthesis. Overall, this study demonstrated that primary screening by the proposed gene-centric approach can be used to evaluate the potential for the production of valuable products using mixed culture or single microbe in engineered systems. The proposed approach can be expanded to sites where water purification is highly required, but resource recovery, or upcycling has not been implemented.
Entwicklung einer Plattform zur 3D-Visualisierung und -Segmentierung medizinischer Daten : YaDiV - Yet another Dicom Viewer
Creators: name: Friese, Karl-Ingo
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2010
Subjects: subject: Medicin
subject: visualization
subject: segmentation
subject: virtual reality
subject: Medizin
subject: Visualisierung
subject: Segmentierung
subject: virtuelle Realität
subject: Dewey Decimal Classification::000 | Allgemeines, Wissenschaft::000 | Informatik, Wissen, Systeme::004 | Informatik

description: [no abstract]
Die Wirkung eines hochintensiven, intervallartigen Trainings auf die Leistungs- und Regenerationsfähigkeit
Creators: name: Frische, Maja
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2010
Subjects: subject: Interval-like training
subject: endurance capacity
subject: recovery capacity
subject: Intervallartiges Training
subject: Ausdauerkapazität
subject: Erholungsfähigkeit
subject: Dewey Decimal Classification::700 | Künste, Bildende Kunst allgemein::790 | Freizeitgestaltung, Darstellende Kunst::796 | Sport

description: [no abstract]
Gravitational Binary-lens Events with Prominent Effects of Lens Orbital Motion
Creators: name: Park, H.
name: Udalski, A.
name: Han, C.
name: Gould, A.
name: Beaulieu, J. -P.
name: Tsapras, Y.
name: Szymański, M. K.
name: Kubiak, M.
name: Soszyński, I.
name: Pietrzyński, G.
name: Poleski, R.
name: Ulaczyk, K.
name: Pietrukowicz, P.
name: Kozłowski, S.
name: Skowron, J.
name: Wyrzykowski, Ł.
name: Choi, J. -Y.
name: Depoy, D. L.
name: Dong, Subo
name: Gaudi, B. S.
name: Hwang, K. -H.
name: Jung, Y. K.
name: Kavka, A.
name: Lee, C. -U.
name: Monard, L. A. G.
name: Park, B. -G.
name: Pogge, R. W.
name: Porritt, I.
name: Shin, I. -G.
name: Yee, J. C.
name: Albrow, M. D.
name: Bennett, D. P.
name: Caldwell, J. A. R.
name: Cassan, A.
name: Coutures, C.
name: Dominis, D.
name: Donatowicz, J.
name: Fouqué, P.
name: Greenhill, J.
name: Huber, M.
name: Jørgensen, U. G.
name: Kane, S.
name: Kubas, D.
name: Marquette, J. -B.
name: Menzies, J.
name: Pitrou, C.
name: Pollard, K. R.
name: Sahu, K. C.
name: Wambsganss, J.
name: Williams, A.
name: Zub, M.
name: Allan, A.
name: Bramich, D. M.
name: Browne, P.
name: Dominik, M.
name: Horne, K.
name: Hundertmark, M.
name: Kains, N.
name: Snodgrass, C.
name: Steele, I. A.
name: Street, R. A.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Gravitational microlensing events produced by lenses composed of binary masses are important because they provide a major channel to determine physical parameters of lenses. In this work, we analyze the light curves of two binary-lens events OGLE-2006-BLG-277 and OGLE-2012-BLG-0031 for which the light curves exhibit strong deviations from standard models. From modeling considering various second-order effects, we find that the deviations are mostly explained by the effect of the lens orbital motion. We also find that lens parallax effects can mimic orbital effects to some extent. This implies that modeling light curves of binary-lens events not considering orbital effects can result in lens parallaxes that are substantially different from actual values and thus wrong determinations of physical lens parameters. This demonstrates the importance of routine consideration of orbital effects in interpreting light curves of binary-lens events. It is found that the lens of OGLE-2006-BLG-277 is a binary composed of a low-mass star and a brown dwarf companion.
description: 6 pages and 4 figures
Wälzlagerschmierung mit polymerhaltigen Fetten
Creators: name: Gatzen, Matthias
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2010
Subjects: subject: Polymers
subject: grease
subject: ball bearing
subject: Polymerzusätze
subject: Schmierfett
subject: Wälzlager
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: [no abstract]
title: Somalia and Unosom: A Case Study in International Peacekeeping
Creators: name: Miller, Shawn D.
Publisher: name: Utah State University
Year: 1994

description: Somalia. In December 1992, this word conjured up horrific images of extreme deprivation and senseless suffering due to prolonged war and famine. Calls for intervention were heard and answered resulting in an unprecedented deployment of troops for a humanitarian cause. Immediately thereafter, a notable surge of support for the United Nations (UN) and its role in the post-Cold War world was evident.
The Relation Between Automorphism Group and Isometry Group of Randers Lie Groups
Creators: name: Moghaddam, H. R. Salimi
Publisher: name: arXiv
Year: 2013
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 58B20, 53C60, 22E15

description: In this paper we consider simply connected Lie groups equipped with left invariant Randers metrics which arise from left invariant Riemannian metrics and left invariant vector fields. Then we study the intersection between automorphism and isometry groups of these spaces. Finally it has shown that for any left invariant vector field, in a special case, the Lie group admits a left invariant Randers metric such that this intersection is a maximal compact subgroup of the group of automorphisms with respect to which the considered vector field is invariant.
title: Ergebnisse des Projekts coli-conc
title: Ein Rückblick auf mehr als 8 Jahre Sacherschließungs-Infrastruktur
titleType: Subtitle
Creators: name: Balakrishnan, Uma
name: Voß, Jakob
Publisher: name: VZG
Year: 2023

description: Die Präsentation auf dem 7. Workshop Computerunterstützte Inhaltserschließung gibt einen Überblick über die Ziele Ergebnisse des Projekt coli-conc zur Entwicklung einer Infrastruktur für den Austausch, die Erstellung, und die Wartung von Konkordanzen zwischen bibliothekarischen Wissensorganisationssystemen.
Formation of positive product ions from substances with low proton affinity in high kinetic energy ion mobility spectrometry
Creators: name: Allers, Maria
name: Kirk, Ansgar T.
name: Schaefer, Christoph
name: Schlottmann, Florian
name: Zimmermann, Stefan
Publisher: name: New York, NY : Wiley Interscience
Year: 2020
Subjects: subject: ion mobility spectrometry (IMS)
subject: atmospheric pressure chemical ionization (APCI)
subject: proton affinity (PA)
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: Rationale: Ion mobility spectrometry (IMS) instruments are typically equipped with atmospheric pressure chemical ionization (APCI) sources operated at ambient pressure. However, classical APCI-IMS suffers from a limited ionization yield for nonpolar substances with low proton affinity (PA). This is mainly due to ion clustering processes, especially those that involve water molecules, inhibiting the ionization of these substances. Methods: High Kinetic Energy (HiKE)-IMS instruments are operated at decreased pressures and high reduced electric field strengths. As most clustering reactions are inhibited under these conditions, the ionization yield for nonpolar substances with low PA in HiKE-IMS should differ from that in classical APCI-IMS. To gain first insights into the ionization capabilities and limitations of HiKE-IMS, we investigated the ionization of four model substances with low PA in HiKE-IMS using HiKE-IMS-MS as a function of the reduced electric field strength. Results: The four model substances all have proton affinities between those of H2O and (H2O)2 but exhibit different ionization energies, dipole moments, and polarizabilities. As expected, the results show that the ionization yield for these substances differs considerably at low reduced electric field strengths due to ion cluster formation. In contrast, at high reduced electric field strengths, all substances can be ionized via charge and/or proton transfer in HiKE-IMS. Conclusions: Considering the detection of polar substances with high PAs, classical ambient pressure IMS should reach better detection limits than HiKE-IMS. However, considering the detection of nonpolar substances with low PA that are not detected, or only difficult to detect, at ambient pressure, HiKE-IMS would be beneficial.
title: Dichotemies of the Human Perception of the Environment
Creators: name: Robson, Janet K.
Publisher: name: Utah State University
Year: 1991

description: Environmentalism was not introduced in the year 1991, nor was it introduced with the era of the sixties. Perhaps, it is best to say that environmentalism has existed since the dawn of time--an environmentalism consisting of a "hands-off" policy. However, movements based on the environment have experienced an evolution in the past 30 years pertaining to the nature of preservation of wilderness areas and natural resources.
Nonlinear thermoelectric response of quantum dots: renormalized dual fermions out of equilibrium
Creators: name: Kirchner, Stefan
name: Zamani, Farzaneh
name: Muñoz, Enrique
Publisher: name: arXiv
Year: 2013
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The thermoelectric transport properties of nanostructured devices continue to attract attention from theorists and experimentalist alike as the spatial confinement allows for a controlled approach to transport properties of correlated matter. Most of the existing work, however, focuses on thermoelectric transport in the linear regime despite the fact that the nonlinear conductance of correlated quantum dots has been studied in some detail throughout the last decade. Here, we review our recent work on the effect of particle-hole asymmetry on the nonlinear transport properties in the vicinity of the strong coupling limit of Kondo-correlated quantum dots and extend the underlying method, a renormalized superperturbation theory on the Keldysh contour, to the thermal conductance in the nonlinear regime. We determine the charge, energy, and heat current through the nanostructure and study the nonlinear transport coefficients, the entropy production, and the fate of the Wiedemann-Franz law in the non-thermal steady-state. Our approach is based on a renormalized perturbation theory in terms of dual fermions around the particle-hole symmetric strong-coupling limit.
description: chapter contributed to 'New Materials for Thermoelectric Applications: Theory and Experiment' Springer Series: NATO Science for Peace and Security Series - B: Physics and Biophysics, Veljko Zlatic (Editor), Alex Hewson (Editor). ISBN: 978-9400749863 (2012)
title: New Directions in Medical School Admissions
Creators: name: Neeleman, Stephen D.
Publisher: name: Utah State University
Year: 1994

description: In 1910, American medicine underwent a thorough review of its practices, policies, and most importantly, its education. The review was conducted by Abraham Flexner, under commission of the Carnegie Foundation. Flexner's task was to determine the uniformity of medical learning throughout the United States, and to develop a systematic approach whereby the nation could improve its overall health training. The subsequent Flexner report changed the face of medical education for decades. Its tenets provoked revolutionary changes in the medical school process that are still in use today. However, some have begun to question facets of the report, and even introduce new ways for teaching medical school principles. These recent changes may make the practice of medicine more appealing to a broader type of student, rather than the traditional science-oriented undergraduate.
title: The Right to Die: A Brief Look at Physician-Assisted Suicide
Creators: name: Purves, Brooke Meredith Sanders
Publisher: name: Utah State University
Year: 1996

description: Recently, there has been some discussion in Congress about writing a Constitutional amendment declaring that every American citizen has the "right to die" if he or she so sees fit. Opponents of this amendment believe that it will be abused - that although the amendment would generally apply to terminally ill patients, depressed teenagers and the like will be able to commit suicide if they feel like it, and mothers with deformed infants may act as guardians and exercise the right for their children, with no protection from the state. Their concern is certainly warranted. It is not the goal of the proposed amendment, however, to tell society that we do not care about your life. The goal is to make legal physician-assisted suicide, or the taking of one's terminal life through the help of a qualified health care professional in the instance of extreme pain and suffering on the part of the competent, informed patient.
Printed circuit board based segmented quadrupole ion guide
Creators: name: Allers, Maria
name: Schlottmann, Florian
name: Eckermann, Manuel
name: Zimmermann, Stefan
Publisher: name: [S.l.] : Elsevier Science
Year: 2019
Subjects: subject: collisional damping quadrupole ion guides
subject: radio frequency (RF)
subject: printed circuit boards (PCB)
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: Collisional damping quadrupole ion guides have become popular tools in mass spectrometry. In such devices, ions are cooled by collisions with a buffer gas and focused to trajectories near the axis of the ion guide under the influence of a radio frequency (RF) field. This produces a narrow beam of low-energy ions which can be transported with high efficiency. Typically, quadrupole ion guides are constructed of four parallel rods to which RF voltages are applied. To overcome the dampening of the axial velocity component resulting from collisions with neutral gas particles, an additional static axial field is provided by dividing the rods in several segments and applying an electric potential to each segment. However, this method is mechanically complex, requiring a precise alignment of all segments, and several separate connections for the DC und RF voltages to all segments. In this work, we present a simple and low-cost segmented quadrupole ion guide design that is based on standard printed circuit boards (PCB) including both the segmented electrodes as well as the signal distribution network. Furthermore, we present simulations of the ion movement inside this PCB quadrupole and experimentally evaluate the ion transfer. Our measurements show that the segmented PCB quadrupole with planar electrodes reaches similar ion transmissions in comparison with conventional quadrupole ion guides built from segmented circular rods.
Farm biosecurity measures associated with delivering hepatitis E virus negative batches to slaughter
Creators: name: Meester, Marina
Publisher: name: Zenodo
Year: 2022
Subjects: biopigee, biosecurity, HEV, case-control, pig farm

description: OHEJP Project: BIOPIGEE This is a presentation on biosecurity measures that increase the odds of a negative delivery of fattening pigs to slaughter. The presentation was held at the annual scientific meeting of the European College of Veterinary Public Health.
Measurement of exhaled volatile organic compounds from patients with chronic obstructive pulmonary disease (COPD) using closed gas loop GC-IMS and GC-APCI-MS
Creators: name: Allers, Maria
name: Langejuergen, Jens
name: Gaida, Arne
name: Holz, O.
name: Schuchardt, Sven
name: Hohlfeld, Jens M.
name: Zimmermann, Stefan
Publisher: name: Bristol : IOP
Year: 2016
Subjects: subject: COPD
subject: GC-IMS
subject: GC-APCI-MS
subject: VOC
subject: biomarker
subject: breath analysis
subject: Dewey Decimal Classification::600 | Technik::610 | Medizin, Gesundheit

description: Due to its high sensitivity, compact size and low cost Ion Mobility Spectrometry (IMS) has the potential to become a point-of-care breath analyzer. Therefore, we developed a prototype of a compact, closed gas loop IMS with gas chromatographic (GC) pre-separation and high resolving power of R = 90. In this study, we evaluated the performance of this GC-IMS under clinical conditions in a COPD study to find correlations between VOCs (10 ppbv to 1 ppmv) and COPD. Furthermore, in order to investigate possible correlations between ultra-low concentrated breath VOCs (0.1 pptv to 1 ppbv) and COPD, a modified mass spectrometer (MS) with atmospheric pressure chemical ionization (APCI) and GC pre-separation (GC-APCI-MS) was used. The GC-IMS has been used in 58 subjects (21 smokers with moderate COPD, 12 ex-smokers with COPD, 16 healthy smokers and 9 non-smokers). GC-APCI-MS data were available for 94 subjects (21 smokers with moderate COPD, 25 ex-smokers with COPD, 25 healthy smokers and 23 non-smokers). For 44 subjects, a comparison between GC-IMS and GC-APCI-MS data could be performed. Due to service intervals, subject availability and corrupt data, patient numbers were different for GC-APCI-MS and GC-IMS measurements. Using GC-IMS, three VOCs have been found showing a significant difference between healthy controls and patients with COPD. In the GC-APCI-MS data, we only observed one distinctive VOC, which has been identified as 2-pentanone. This proof-of-principle study shows the potential of our high-resolution GC-IMS in the clinical environment. Due to different linear dynamic response ranges, the data of GC-IMS and GC-APCI-MS were only comparable to a limited extent.
title: Dosimetric Validation of a System to Treat Moving Tumors Using Scanned Ion Beams That Are Synchronized With Anatomical Motion
Creators: name: Lis, Michelle
name: Newhauser, Wayne
name: Donetti, Marco
name: Wolf, Moritz Ernst
name: Steinsberger, Timo
name: Paz, Athena
name: Graeff, Christian
Publisher: name: Frontiers Media S.A.
Year: 2023

description: Purpose: The purpose of this study was to validate the dosimetric performance of scanned ion beam deliveries with motion-synchronization to heterogenous targets. Methods: A 4D library of treatment plans, comprised of up to 10 3D sub-plans, was created with robust and conventional 4D optimization methods. Each sub-plan corresponded to one phase of periodic target motion. The plan libraries were delivered to a test phantom, comprising plastic slabs, dosimeters, and heterogenous phantoms. This phantom emulated range changes that occur when treating moving tumors. Similar treatment plans, but without motion synchronization, were also delivered to a test phantom with a stationary target and to a moving target; these were used to assess how the target motion degrades the quality of dose distributions and the extent to which motion synchronization can improve dosimetric quality. The accuracy of calculated dose distributions was verified by comparison with corresponding measurements. Comparisons utilized the gamma index analysis method. Plan quality was assessed based on conformity, dose coverage, overdose, and homogeneity values, each extracted from calculated dose distributions. Results: High pass rates for the gamma index analysis confirmed that the methods used to calculate and reconstruct dose distributions were sufficiently accurate for the purposes of this study. Calculated and reconstructed dose distributions revealed that the motion-synchronized and static deliveries exhibited similar quality in terms of dose coverage, overdose, and homogeneity for all deliveries considered. Motion-synchronization substantially improved conformity in deliveries with moving targets. Importantly, measurements at multiple locations within the target also confirmed that the motion-synchronized delivery system satisfactorily compensated for changes in beam range caused by the phantom motion. Specifically, the overall planning and delivery approach achieved the desired dose distribution by avoiding range undershoots and overshoots caused by tumor motion. Conclusions: We validated a dose delivery system that synchronizes the movement of the ion beam to that of a moving target in a test phantom. Measured and calculated dose distributions revealed that this system satisfactorily compensated for target motion in the presence of beam range changes due to target motion. The implication of this finding is that the prototype system is suitable for additional preclinical research studies, such as irregular anatomic motion.
A Simple Printed Circuit Board–Based Ion Funnel for Focusing Low m/z Ratio Ions with High Kinetic Energies at Elevated Pressure
Creators: name: Schlottmann, Florian
name: Allers, Maria
name: Kirk, Ansgar T.
name: Bohnhorst, Alexander
name: Zimmermann, Stefan
Publisher: name: Washington, DC : ACS Publications
Year: 2019
Subjects: subject: radio frequency (RF) voltages
subject: ion funnels
subject: PCB ion funnel
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: Ion funnels are one of the key components for transferring ions from higher pressure into the vacuum. Typically, ion funnels are constructed of several different plate ring electrodes with a decreasing inner diameter where radio frequency (RF) voltages and electric DC fields are applied to the electrodes to focus and transport ion clouds. In this work, we developed and investigated a simple and low-cost ion funnel design that is based on standard printed circuit boards (PCB) with integrated planar electrodes including the signal distribution network. This ion funnel is capable of withstanding high electric fields with superimposed RF voltages due to its buried capacitors. To evaluate the ion focusing efficiency of the ion funnel, we simulated the movement of ions inside this funnel and experimentally evaluated the ion transfer. Our simulations show that a rectangular ion funnel like the PCB ion funnel has similar performance compared with conventional stacked ring funnels. Due to the hundredfold lower parasitic capacitance between the planar electrodes compared with conventional ion funnels, high RF voltage amplitudes up to 195 V and reduced electric DC field strengths up to 100 Td can be reached at a frequency of about 5 MHz. Thus, the funnel is appropriate to focus light ions at elevated pressures up to 20 mbar.
Conservation Laws and Thermodynamic Efficiencies
Creators: name: Benenti, Giuliano
name: Casati, Giulio
name: Wang, Jiao
Publisher: name: arXiv
Year: 2013
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We show that generic systems with a single relevant conserved quantity reach the Carnot efficiency in the thermodynamic limit. Such a general result is illustrated by means of a diatomic chain of hard-point elastically colliding particles where the total momentum is the only relevant conserved quantity.
description: 5 pages, 4 figures
Interview with Brian Kemple
Creators: name: Kemple, Brian
name: Passarini, William
name: Troutman, Tim
Publisher: name: Instituto de Estudos Filosóficos
Year: 2021
Subjects: subject: John Deely
subject: History
subject: Philosophy
subject: FOS: Philosophy, ethics and religion
subject: Semiotics

description: Listen to the interview with Brian Kemple... and learn to appreciate the diachronic trajectory of semiotics.

***

Live interview with Brian Kemple, Executive Director of the Lyceum Institute, to discuss the legacy and influence of John Deely (1942-2017), the thinker most responsible for developing semiotics into the 21st century. This interview, conducted by William Passarini (Mansarda Acesa) and Tim Troutman (Lyceum Institute), is part of the preliminary activities of the 2022 International Open Seminar on Semiotics: a Tribute to John Deely on the Fifth Anniversary of His Passing, cooperatively organized by the Institute for Philosophical Studies of the Faculty of Arts and Humanities of the University of Coimbra, the Lyceum Institute, the Deely Project, Saint Vincent College, the Iranian Society for Phenomenology at the Iranian Political Science Association, the International Association for Semiotics of Space and Time, the Institute for Scientific Information on Social Sciences of the Russian Academy of Sciences, the Semiotic Society of America, the American Maritain Association, the International Association for Semiotic Studies, the International Society for Biosemiotic Studies, the International Center for Semiotics and Intercultural Dialogue, Moscow State Academic University for the Humanities and the Mansarda Acesa with the support of the FCT - Foundation for Science and Technology, I.P., of the Ministry of Science, Technology and Higher Education of the Government of Portugal under the UID/FIL/00010/2020 project.

Brian Kemple holds a PhD in Philosophy from the University of St. Thomas, in Houston TX, where he wrote his dissertation under the inimitable John Deely. He is the Founder and Executive Director of the Lyceum Institute (https://lyceum.institute). Philosophical interests and areas of study include: Thomas Aquinas, John Poinsot, Charles Peirce, Martin Heidegger, the history and importance of semiotics, scholasticism, phenomenology; as well as ancillary interests in the liberal arts, technology, and education as a moral habit. He has published two scholarly books— 'Ens Primum Cognitum in Thomas Aquinas and the Tradition' (Brill: 2017) and 'The Intersections of Semiotics and Phenomenology: Peirce and Heidegger in Dialogue' (De Gruyter: 2019), as well as a number of scholarly articles, popular articles, and his own 'Introduction to Philosophical Principles: Logic, Physics, and the Human Person' (2019) and the forthcoming 'Linguistic Signification: A Classical Course in Grammar and Composition' (2021). In addition to being the Executive Director of the Lyceum Institute, he is the Executive Editor of 'Reality: a Journal for Philosophical Discourse' (https://realityjournal.org/).

***

Technical support was assured by Robert Junqueira and the cover image for the video was designed by Zahra Soltani.
Positive Reactant Ion Formation in High Kinetic Energy Ion Mobility Spectrometry (HiKE-IMS)
Creators: name: Allers, Maria
name: Kirk, Ansgar T.
name: Eckermann, Manuel
name: Schaefer, Christoph
name: Erdogdu, Duygu
name: Wissorf, Walter
name: Benter, Thorsten
name: Zimmermann, Stefan
Publisher: name: Washington, DC : ACS Publications
Year: 2020
Subjects: subject: kinetic modeling
subject: positive reactant ion formation
subject: corona discharge ionization
subject: ion mobility spectrometry
subject: high kinetic energy ion mobility spectrometry
subject: HiKE-IMS
subject: IMS
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: In contrast to classical Ion Mobility Spectrometers (IMS) operating at ambient pressure, the High Kinetic Energy Ion Mobility Spectrometer (HiKE-IMS) is operated at reduced pressures of between 10 and 40 mbar and higher reduced electric field strengths of up to 120 Td. Thus, the ion–molecule reactions occurring in the HiKE-IMS can significantly differ from those in classical ambient pressure IMS. In order to predict the ionization pathways of specific analyte molecules, profound knowledge of the reactant ion species generated in HiKE-IMS and their dependence on the ionization conditions is essential. In this work, the formation of positive reactant ions in HiKE-IMS is investigated in detail. On the basis of kinetic and thermodynamic data from the literature, the ion–molecule reactions are kinetically modeled. To verify the model, we present measurements of the reactant ion population and its dependence on the reduced electric field strength, the operating pressure, and the water concentration in the sample gas. All of these parameters significantly affect the reactant ion population formed in HiKE-IMS.
title: Otto Kunkel, Pommersche Urgeschichte in Bildern
Creators: name: Bersu, Gerhard
Publisher: name: University Library Heidelberg
Year: 2016

description: Rezension zu: Otto Kunkel, Pommersche Urgeschichte in Bildern. (Schriften aus dem Provinzialmuseum Pommerscher Altertümer in Stettin.) VI, 2 Bde. A. Textteil 175 Seiten mit 45 Abbildungen und einer Karte. B. Tafelteil mit 110 Tafeln. Stettin 1931, Leon Sannier.
Specifics of thermodynamic description of nanocrystals
Creators: name: Karasevskii, A. I.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: A method of statistical description of thermodynamic properties of nanocrystals is developed. It is established that size-dependent quantization of vibrational modes results in formation of excess pressure of the phonon gas acting outwards the crystal. Based on the concept of the phonon gas pressure, size dependence of thermodynamic properties of nanocrystals was described, and size influence on a shift of a phase transformation temperature was explained.
description: 19 pages,8 figures
Gender Stereotyping in Campus Placement: Industry-Academia Perspective
Creators: name: Islam, K M Baharul
Publisher: name: figshare
Year: 2022
Subjects: subject: 140301 Cross-Sectional Analysis
subject: FOS: Economics and business
subject: 130103 Higher Education
subject: FOS: Educational sciences

description: Outcome of the National Seminar held at IIM Kashipur (India), funded by the National Commission for Women, Govt of India. Following objectives of the Seminar were achieved:
 1. Generated awareness among students across disciplines. 2. Participation of both academia and Industry delegate to gather a common perspective. Seminar report submitted to the commission.
ELGAR - A European Laboratory for Gravitation and Atom-interferometric Research
Creators: name: Canuel, B.
name: Abend, S.
name: Amaro-Seoane, P.
name: Badaracco, F.
name: Beaufils, Q.
name: Bertoldi, A.
name: Bongs, K.
name: Bouyer, P.
name: Braxmaier, C.
name: Chaibi, W.
name: Christensen, N.
name: Fitzek, F.
name: Flouris, G.
name: Gaaloul, N.
name: Gaffet, S.
name: Garrido Alzar, C.L.
name: Geiger, R.
name: Guellati-Khelifa, S.
name: Hammerer, K.
name: Harms, J.
name: Hinderer, J.
name: Holynski, M.
name: Junca, J.
name: Katsanevas, S.
name: Klempt, C.
name: Kozanitis, C.
name: Krutzik, M.
name: Landragin, A.
name: Làzaro, Roche
name: Leykauf, B.
name: Lien, Y.-H.
name: Loriani, S.
name: Merlet, S.
name: Merzougui, M.
name: Nofrarias, M.
name: Papadakos, P.
name: Pereira Dos Santos, F.
name: Peters, A.
name: Plexousakis, D.
name: Prevedelli, M.
name: Rasel, E.M.
name: Rogister, Y.
name: Rosat, S.
name: Roura, A.
name: Sabulsky, D.O.
name: Schkolnik, V.
name: Schlippert, D.
name: Schubert, C.
name: Sidorenkov, L.
name: Siemß, J.-N.
name: Sopuerta, C.F.
name: Sorrentino, F.
name: Struckmann, C.
name: Tino, G.M.
name: Tsagkatakis, G.
name: Viceré, A.
name: Klitzing, W. Von
name: Woerner, L.
name: Zou, X.
Publisher: name: Bristol : IOP Publ.
Year: 2020
Subjects: subject: cold atoms
subject: gravitational waves
subject: gravity
subject: matter-wave interferometry
subject: research infrastructure
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: Gravitational waves (GWs) were observed for the first time in 2015, one century after Einstein predicted their existence. There is now growing interest to extend the detection bandwidth to low frequency. The scientific potential of multi-frequency GW astronomy is enormous as it would enable to obtain a more complete picture of cosmic events and mechanisms. This is a unique and entirely new opportunity for the future of astronomy, the success of which depends upon the decisions being made on existing and new infrastructures. The prospect of combining observations from the future space-based instrument LISA together with third generation ground based detectors will open the way toward multi-band GW astronomy, but will leave the infrasound (0.1–10 Hz) band uncovered. GW detectors based on matter wave interferometry promise to fill such a sensitivity gap. We propose the European Laboratory for Gravitation and Atom-interferometric Research (ELGAR), an underground infrastructure based on the latest progress in atomic physics, to study space–time and gravitation with the primary goal of detecting GWs in the infrasound band. ELGAR will directly inherit from large research facilities now being built in Europe for the study of large scale atom interferometry and will drive new pan-European synergies from top research centers developing quantum sensors. ELGAR will measure GW radiation in the infrasound band with a peak strain sensitivity of 3.3 x 10 [hoch]-20 / [Wurzel] Hz at 1.7 Hz. The antenna will have an impact on diverse fundamental and applied research fields beyond GW astronomy, including gravitation, general relativity, and geology.
Identification of nitric oxide (NO)-responsive genes under hypoxia in tomato (Solanum lycopersicum L.) root
Creators: name: Safavi-Rizi, Vajiheh
name: Herde, Marco
name: Stöhr, Christine
Publisher: name: London : Nature Publishing Group
Year: 2020
Subjects: subject: plant hypoxic stress
subject: Hypoxia
subject: Oxygen
subject: NO-responsive genes
subject: Dewey Decimal Classification::500 | Naturwissenschaften
subject: Dewey Decimal Classification::600 | Technik

description: Flooding periods, as one probable consequence of climate change, will lead more frequently to plant hypoxic stress. Hypoxia sensing and signaling in the root, as the first organ encountering low oxygen, is therefore crucial for plant survival under flooding. Nitric oxide has been shown to be one of the main players involved in hypoxia signaling through the regulation of ERFVII transcription factors stability. Using SNP as NO donor, we investigated the NO-responsive genes, which showed a significant response to hypoxia. We identified 395 genes being differentially regulated under both hypoxia and SNP-treatment. Among them, 251 genes showed up- or down-regulation under both conditions which were used for further biological analysis. Functional classification of these genes showed that they belong to different biological categories such as primary carbon and nitrogen metabolism (e.g. glycolysis, fermentation, protein and amino acid metabolism), nutrient and metabolites transport, redox homeostasis, hormone metabolism, regulation of transcription as well as response to biotic and abiotic stresses. Our data shed light on the NO-mediated gene expression modulation under hypoxia and provides potential targets playing a role in hypoxia tolerance. These genes are interesting candidates for further investigating their role in hypoxia signaling and survival. ¬© 2020, The Author(s).
Reasons for and Consequences of Low Energy Availability in Female and Male Athletes: Social Environment, Adaptations, and Prevention
Creators: name: Wasserfurth, Paulina
name: Palmowski, Jana
name: Hahn, Andreas
name: Krüger, Karsten
Publisher: name: Berlin [u.a.] : Springer
Year: 2020
Subjects: subject: athlete
subject: body dissatisfaction
subject: body weight
subject: energy balance
subject: energy expenditure
subject: female
subject: human
subject: male
subject: mental disease
subject: metabolism
subject: reproduction
subject: Review
subject: social adaptation
subject: social environment
subject: social media
subject: Dewey Decimal Classification::600 | Technik::610 | Medizin, Gesundheit
subject: Dewey Decimal Classification::700 | Künste, Bildende Kunst allgemein::790 | Freizeitgestaltung, Darstellende Kunst::796 | Sport

description: Low energy availability (LEA) represents a state in which the body does not have enough energy left to support all physiological functions needed to maintain optimal health. When compared to the normal population, athletes are particularly at risk to experience LEA and the reasons for this are manifold. LEA may result from altered dietary behaviours that are caused by body dissatisfaction, the belief that a lower body weight will result in greater performance, or social pressure to look a certain way. Pressure can also be experienced from the coach, teammates, and in this day and age through social media platforms. While LEA has been extensively described in females and female athletes have started fighting against the pressure to be thin using their social media platforms, evidence shows that male athletes are at risk as well. Besides those obvious reasons for LEA, athletes engaging in sports with high energy expenditure (e.g. rowing or cycling) can unintentionally experience LEA; particularly, when the athletes‚Äô caloric intake is not matched with exercise intensity. Whether unintentional or not, LEA may have detrimental consequences on health and performance, because both short-term and long-term LEA induces a variety of maladaptations such as endocrine alterations, suppression of the reproductive axis, mental disorders, thyroid suppression, and altered metabolic responses. Therefore, the aim of this review is to increase the understanding of LEA, including the role of an athlete‚Äôs social environment and the performance effects related to LEA. ¬© 2020, The Author(s).
Symplectic Connections Induced by the Chern Connection
Creators: name: Esrafilian, Ebrahim
name: Moghaddam, Hamid Reza Salimi
Publisher: name: arXiv
Year: 2013
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 53D05, 53B05, 53B40, 70G45

description: Let $(M,ω)$ be a symplectic manifold and $F$ be a Finsler structure on $M$. In the present paper we define a lift of the symplectic two-form $ω$ on the manifold $TM\backslash 0$, and find the conditions that the Chern connection of the Finsler structure $F$ preserves this lift of $ω$. In this situation if $M$ admits a nowhere zero vector field then we have a non-empty family of Fedosov structures on $M$.
How does learners’ behavior attract preservice teachers’ attention during teaching?
Creators: name: Goldberg, Patricia
name: Schwerter, Jakob
name: Seidel, Tina
name: Müller, Katharina
name: Stürmer, Kathleen
Publisher: name: Amsterdam [u.a.] : Elsevier Science
Year: 2021
Subjects: subject: Mobile eye-tracking research
subject: Multinomial regression
subject: Student behavior
subject: Teacher-student interaction
subject: Time series analysis
subject: Dewey Decimal Classification::300 | Sozialwissenschaften, Soziologie, Anthropologie::370 | Erziehung, Schul- und Bildungswesen

description: Teachers need to continuously monitor students’ engagement in classrooms, but novice teachers have difficulties paying attention to individual behavioral cues in all learners. To investigate these interaction processes in more detail, we re-analyzed eye-tracking data from preservice teachers teaching simulated learners who engaged in different behaviors (Stürmer, Seidel, Müller, Häusler, & Cortina, 2017). With a new methodological approach, we synchronized the data with a continuous annotation of observable student behavior and conducted time series analysis on 3646 s of video material. Results indicate that novice teachers’ attention is attracted most often when learners show (inter)active learning-related behavior.