cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Local chiral effective field theory interactions and quantum Monte Carlo applications
Creators: name: Gezerlis, A.
name: Tews, I.
name: Epelbaum, E.
name: Freunek, M.
name: Gandolfi, S.
name: Hebeler, K.
name: Nogga, A.
name: Schwenk, A.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Nuclear Theory (nucl-th)
subject: Quantum Gases (cond-mat.quant-gas)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: We present details of the derivation of local chiral effective field theory interactions to next-to-next-to-leading order, and show results for nucleon-nucleon phase shifts and deuteron properties for these potentials. We then perform systematic auxiliary-field diffusion Monte Carlo calculations for neutron matter based on the developed local chiral potentials at different orders. This includes studies of the effects of the spectral-function regularization and of the local regulators. For all orders, we compare the quantum Monte Carlo results with perturbative many-body calculations and find excellent agreement for low cutoffs.
description: 17 pages, 11 figures, published version, LA-UR-14-23894
Design Framework of Business Ecosystems for Mechanical Engineering Companies in the Context of Digital Transformation.
Creators: name: Geitner, Richard E.
Publisher: name: Zenodo
Year: 2023
Subjects: Business Ecosystem
Structural Business Ecosystem
Structural BES
Struktur-BES
Structural-BES
Modular Ecosystem
ecosystem-as-structure approach
Innovation Ecosystem

description: Structural Business Ecosystems (Structural BES): By Partnering on an Equal Footing to unique, exceptional, customer-centric (cross-industry) system solutions, that are embedded in a specific collaborative business model of the partners for this purpose.
Mismatched-basis statistics enable quantum key distribution with uncharacterized qubit sources
Creators: name: Yin, Zhen-Qiang
name: Fung, Chi-Hang Fred
name: Ma, Xiongfeng
name: Zhang, Chun-Mei
name: Li, Hong-Wei
name: Chen, Wei
name: Wang, Shuang
name: Guo, Guang-Can
name: Han, Zheng-Fu
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In the postprocessing of quantum key distribution, the raw key bits from the mismatched-basis measurements, where two parties use different bases, are normally discarded. Here, we propose a postprocessing method that exploits measurement statistics from mismatched-basis cases, and prove that incorporating these statistics enables uncharacterized qubit sources to be used in the measurement-device-independent quantum key distribution protocol and the Bennett-Brassard 1984 protocol, a case which is otherwise impossible.
description: Part of this article contains a significant improvement over arXiv:1309.3819
title: Die Rezeption der politischen Philosophie Carl Schmitts in autoritär geführten Regierungen des 21. Jahrhunderts
Creators: name: Wenning, Marco
Year: 2021

description: Im 21. Jahrhundert lässt sich ein wahrer Vormarsch von autoritärer Politik rund um den Globus beobachten. Carl Schmitt, der „Kronjurist des Dritten Reiches“, und dessen kontroverse antiliberale, etatistische Ideen — insbesondere sein Plädoyer für einen starken, von einem Führer geleiteten Staat sowie seine Abwertung der parlamentarischen Demokratie — werden in diesem Zusammenhang von Experten immer wieder als großer Einfluss für diese besorgniserregende Entwicklung genannt. Das Ziel meiner Masterarbeit ist die Beantwortung dreier kontroverser philosophischer Fragen, die mit dem oben Genannten zusammenhängen: Was sind die Kernelemente der politischen Philosophie Carl Schmitts? Kann man in autoritär geführten Regierungen des 21. Jahrhunderts von einem starken Einfluss der politischen Philosophie Carl Schmitts sprechen? Und wie sind die politische Philosophie Carl Schmitts und deren Einfluss auf autoritär geführte Regierungen des 21. Jahrhunderts zu beurteilen? Im Rahmen der Behandlung dieser Fragen werden die relevanten Schriften im Gesamtwerk von Carl Schmitt exzerpiert, wobei die umfangreiche Sekundärliteratur, die sich mit der Rezeption seiner Philosophie im 21. Jahrhundert beschäftigt, berücksichtigt wird. Im Laufe meiner Arbeit werde ich zeigen, dass Carl Schmitts Philosophie ein kohärentes, einer inneren Logik folgendes Ganzes darstellt — im Gegensatz zur Meinung einiger Schmitt-Kommentatoren, für die Schmitt ein bloßer Opportunist ohne intellektuelle Tiefe war — und dass Schmitts verwerfliches staatsrechtliches Engagement für den Nationalsozialismus kein Bruch in seinem Denken, sondern durchaus im Sinne seiner Theorie war. Darüber hinaus werde ich zeigen, dass das Denken Carl Schmitts nicht bloß als Heuristik der Politikwissenschaftler und politischen Philosophen gebraucht wird, um moderne autoritäre Staaten zu verstehen, sondern dass man sehr wohl von einem gewissen Einfluss seiner Philosophie auf moderne autoritär geführte Regierungen sprechen kann, was ich anhand dreier zentraler Beispiele aufzeigen werde: der Volksrepublik China, Putins Russland und den Vereinigten Staaten von Amerika unter Bush und Trump. Zu guter Letzt werde ich die politische Philosophie Schmitts und deren Einfluss auf autoritär geführte Regierungen des 21. Jahrhunderts kritisch beurteilen und bewerten, wobei ich am Ende zu dem Schluss kommen werde, dass der schmittianische Autoritarismus weder eine praktikable noch eine moralisch vertretbare Alternative zu seinem Gegenentwurf, der liberalen Demokratie, darstellt, wobei diese durchaus von Schmitts Schriften profitieren könnte, indem sie seine antiliberale Kritik etwa zur Stärkung demokratischer Institutionen nutzen kann.
title: Die Persistenz der Ordnung
Creators: name: Abdin, Eimen
Year: 2021

description: Der maßgeblich von Heidegger geprägte postfundamentalistische Denkansatz zeichnet sich durch die Ausweitung des Politischen auf letztlich alle Lebensbereiche und der damit einhergehenden These der Kontingenz jedweder sozialer Gründung aus. Gesellschaft ist somit von Grund auf als politisch und kontingent zu erachten. Das bedeutet jedoch nicht, dass sich sozialer Wandel in voluntaristischer Weise herbeizaubern ließe. Wie bereits Gramsci erkannte, ist das politische Kräftemessen ein zähes und kräftezehrendes Ringen um Hegemonie, was bereits eine grundsätzliche Persistenz bestehender Ordnung insinuiert. Dahingehend ist im postfundamentalistischen Denken an Ernesto Laclaus Formulierung einer Hegemonie- und Diskurstheorie und an die heideggerianische Weiterführung dessen durch Oliver Marchart anzudocken. Vor diesem theoretischen Hintergrund beleuchtet diese Arbeit jene basale Persistenz von Ordnung, indem sie die in Laclaus Werk implizite und von Marchart offengelegte Ontologie des Politischen, unter weiterer Anknüpfung an Heidegger, in eine Ontologie der Macht zu übersetzen versucht. Nicht zuletzt gilt für den Postfundamentalismus, dass er in der Schwächung von Gründen zuallererst Grund voraussetzen muss. Erst unter Berücksichtigung und Weiterführung von Laclaus Machtbegriff lässt sich die prinzipielle Persistenz und Unnachgiebigkeit jeder Gründung plausibilisieren.
Gravitational Redshift of Galaxies in Clusters from the Sloan Digital Sky Survey and the Baryon Oscillation Spectroscopic Survey
Creators: name: Sadeh, Iftach
name: Feng, Low Lerh
name: Lahav, Ofer
Publisher: name: arXiv
Year: 2014
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The gravitational redshift effect allows one to directly probe the gravitational potential in clusters of galaxies. Following up on Wojtak et al. [Nature (London) 477, 567 (2011)], we present a new measurement. We take advantage of new data from the tenth data release of the Sloan Digital Sky Survey and the Baryon Oscillation Spectroscopic Survey. We compare the spectroscopic redshift of the brightest cluster galaxies (BCGs) with that of galaxies at the outskirts of clusters, using a sample with an average cluster mass of $10^{14} M_{\odot}$. We find that these galaxies have an average relative redshift of -11 km/s compared with that of BCGs, with a standard deviation of +7 and -5 km/s. Our measurement is consistent with that of Wojtak et al. However, our derived standard deviation is larger, as we take into account various systematic effects, beyond the size of the dataset. The result is in good agreement with the predictions from general relativity.
description: 5 pages, 1 figure; v2 - version published in PRL
The Experiences of Reporting Sexism in Australian Ambulance Services: A Scoping Review
Creators: name: Cassidy, Alexandra
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Medicine and Health Sciences

description: Sexism within Australian Ambulance Services is not a new concept and despite the prevalence of such behaviours, the subject remains underreported within contemporary evidence. Paramedics effected by sexism, sexual harassment, and sexual assault in Australian Ambulance Services remain unwilling to report these events, or in the circumstances where a formal report is made it is common the outcome is not adequate as perceived by the victim. This scoping review looks to assess these reporting experiences and identify some barriers as to why these issues remain underreported. This scoping review will be used as a background for further research into this topic. This review will focus on exclusively Australian evidence and outcomes will include: - Various definitions of sexism and associated behaviours - The experiences of reporting of sexism - Barriers to reporting sexism within paramedicine - Outcomes of reporting sexism
Compact Formulas for the Completed Mock Modular Forms
Creators: name: Eguchi, Tohru
name: Sugawara, Yuji
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: In this paper we present a new compact expression of the elliptic genus of SL(2)/U(1)-supercoset theory by making use of the `spectral flow method' of the path-integral evaluation. This new expression is written in a form like a Poincare series with a non-holomorphic Gaussian damping factor, and manifestly shows the modular and spectral flow properties of a real analytic Jacobi form. As a related problem, we present similar compact formulas for the modular completions of various mock modular forms which appear in the representation theory of N=2,4 superconformal algebras. We further discuss the generalization to the cases of arbitrary spin-structures, that is, the world-sheet fermions with twisted boundary conditions parameterized by a continuous parameter. This parameter is naturally identified with the `u-variable' in the Appell-Lerch sum.
description: 1+31 pages, no figure; v2 minor corrections, typos corrected, version to appear in JHEP
Reactivity of [Cp*Fe(η5‐As5)] towards Carbenes, Silylenes and Germylenes
Creators: name: Reichl, Stephan
name: Riesinger, Christoph
name: Yadav, Ravi
name: Timoshkin, Alexey Y.
name: Roesky, Peter W.
name: Scheer, Manfred
Publisher: name: Universität Regensburg
Year: 2023
Subjects: subject: Arsenic · Functionalization · Germylene · Nucleophiles · Silylene
subject: 540 Chemie

description: The reaction behavior of [Cp*Fe(η5-As5)] (I) (Cp*=C5Me5) towards carbenes and their heavier analogs was investigated. The reaction of I with NHCs (NHCs=N-heterocyclic carbenes) results in the first substitution products of polyarsenic ligand complexes by NHCs [Cp*Fe(η4-As5NHC)] (1 a: NHC=IMe=1,3,4,5-tetramethylimidazolin-2-ylidene, 1 b: NHC=IMes=1,3-bis(2,4,6-trimethylphenyl)-imidazolin-2-ylidene). In contrast, the reaction of I with EtCAAC (EtCAAC=2,6-diisopropylphenyl)-4,4-diethyl-2,2-dimethyl-pyrrolidin-5-ylidene) leads to a fragmentation and the formation of an unprecedented As6-sawhorse-type compound [As2(AsEtCAAC)4] (2). The reaction of (LE)2 (L=PhC(NtBu)2; E=Si, Ge) with I resulted in a rearrangement and an insertion of LE fragments, forming unique silicon- (4: [Cp*Fe(η4-As4SiL)], 5 a: [Cp*Fe(η4-As6SiL)) and germanium-containing (5 b: [Cp*Fe(η4-As6GeL)) cyclic polyarsenic ligand complexes.
Black Hole Formation and Classicalization in Ultra-Planckian 2 -> N Scattering
Creators: name: Dvali, G.
name: Gomez, C.
name: Isermann, R. S.
name: Lust, D.
name: Stieberger, S.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We establish a connection between the ultra-Planckian scattering amplitudes in field and string theory and unitarization by black hole formation in these scattering processes. Using as a guideline an explicit microscopic theory in which the black hole represents a bound-state of many soft gravitons at the quantum critical point, we were able to identify and compute a set of perturbative amplitudes relevant for black hole formation. These are the tree-level N-graviton scattering S-matrix elements in a kinematical regime (called classicalization limit) where the two incoming ultra-Planckian gravitons produce a large number N of soft gravitons. We compute these amplitudes by using the Kawai-Lewellen-Tye relations, as well as scattering equations and string theory techniques. We discover that this limit reveals the key features of the microscopic corpuscular black hole N-portrait. In particular, the perturbative suppression factor of a N-graviton final state, derived from the amplitude, matches the non-perturbative black hole entropy when N reaches the quantum criticality value, whereas final states with different value of N are either suppressed or excluded by non-perturbative corpuscular physics. Thus we identify the microscopic reason behind the black hole dominance over other final states including non-black hole classical object. In the parameterization of the classicalization limit the scattering equations can be solved exactly allowing us to obtain closed expressions for the high-energy limit of the open and closed superstring tree-level scattering amplitudes for a generic number N of external legs. We demonstrate matching and complementarity between the string theory and field theory in different large-s and large-N regimes.
description: 55 pages, 7 figures, LaTeX; v2: typos removed; final version to appear in Nucl. Phys. B
Twisted forms of toric varieties
Creators: name: Duncan, Alexander
Publisher: name: arXiv
Year: 2014
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14M25, 12G05, 16H05

description: We consider the set of forms of a toric variety over an arbitrary field: those varieties which become isomorphic to a toric variety after base field extension. In contrast to most previous work, we also consider arbitrary isomorphisms rather than just those that respect a torus action. We define an injective map from the set of forms of a toric variety to a non-abelian second cohomology set, which generalizes the usual Brauer class of a Severi-Brauer variety. Additionally, we define a map from the set of forms of a toric variety to the set of forms of a separable algebra along similar lines to a construction of A. Merkurjev and I. Panin. This generalizes both a result of M.~Blunk for del Pezzo surfaces of degree 6, and the standard bijection between Severi-Brauer varieties and central simple algebras
description: 41 pages; numerous revisions: introduction more accessible, results now weaker for singular varieties in positive characteristic
Cubulating hyperbolic free-by-cyclic groups: the general case
Creators: name: Hagen, Mark F.
name: Wise, Daniel T.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Group Theory (math.GR)
subject: FOS: Mathematics

description: Let $Φ:F\rightarrow F$ be an automorphism of the finite-rank free group $F$. Suppose that $G=F\rtimes_Φ\mathbb Z$ is word-hyperbolic. Then $G$ acts freely and cocompactly on a CAT(0) cube complex.
description: 36 pages, 11 figures. Version 2 contains minor corrections. Accepted to GAFA
Magnetic hyperthermia properties of nanoparticles inside lysosomes using kinetic Monte-Carlo simulations : influence of key parameters, of dipolar interactions and spatial variation of heating power
Creators: name: Tan, R. P.
name: Carrey, J.
name: Respaud, M.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Understanding the influence of dipolar interactions in magnetic hyperthermia (MH) experiments is of crucial importance for a fine optimization of nanoparticle (NP) heating power. In this study, we use a kinetic Monte-Carlo algorithm to calculate hysteresis loops, so both time and temperature are correctly taken into account. It is demonstrated that this algorithm correctly reproduces the high-frequency hysteresis loop of both superparamagnetic NPs and ferromagnetic ones without any ad-hoc parameters. The algorithm is easily parallelizable so calculation on several processors decreases considerably calculation time. The specific absorption rate (SAR) of NPs dispersed inside spherical lysosomes is studied as a function of several key parameters: volume concentration, applied magnetic field, lysosome size, NP diameter and anisotropy. The influence of these parameters is illustrated and comprehensively explained. In summary, the effect of magnetic interactions is to increase the coercive field, saturation field and hysteresis area of major loops. However, for small amplitude magnetic field such as the ones used in MH, the heating power as function of concentration can increase, decrease or display a bell shape, depending of the relationship between the applied magnetic field and the coercive/saturation fields of the NPs. The hysteresis area is found to be well correlated to the parallel or antiparallel nature of the dipolar field acting on each NP. It is shown that the heating power increases or decreases sharply in the vicinity of the lysosome membrane. The amplitude of variation reaches more than one order of magnitude in certain conditions. Finally, implications of these various findings are discussed in the framework of MH optimization. It is concluded that feedbacks on specific points from biology experiments are required for further advance on the optimization of NPs for MH.
description: 25 pages, 11 figures
A mean-field monomer-dimer model with random monomer activities. Exact solution and rigorous results
Creators: name: Alberici, Diego
name: Contucci, Pierluigi
name: Mingione, Emanuele
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mathematical Physics (math-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Probability (math.PR)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: Independent random monomer activities are considered on a mean-feld monomer-dimer model. Under very general conditions on the randomness the model is shown to have a self-averaging pressure density that obeys a solvable variational principle. The dimer density is exactly computed in the thermodynamic limit and shown to be a smooth function.
description: 20 pages
The Epstein-Glaser causal approach to the Light-Front QED$_{4}$. II: Vacuum Polarization tensor
Creators: name: Bufalo, R.
name: Pimentel, B. M.
name: Soto, D. E.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this work we show how to construct the one-loop vacuum polarization for light-front QED$_{4}$ in the framework of the perturbative causal theory. Usually, in the canonical approach, it is considered for the fermionic propagator the so-called instantaneous term, but it is known in literature that this term is controversial because it can be omitted by computational reasons; for instance, by compensation or vanishing by dimensional regularization. In this work we propose a solution to this paradox. First, in the perturbative causal theory, it is shown that the fermionic propagator does not have instantaneous terms, and with this propagator we calculate the one-loop vacuum polarization, from the calculation it follows the same result as obtained by the standard approach, but without reclaiming any extra assumptions. Moreover, since the perturbative causal theory is defined in the distributional framework, we can also show the reason behind we obtaining the same result whether we consider or not the instantaneous fermionic propagator term.
description: 28 pages, V2 matching the published version
Optimal Adaptive Random Multiaccess in Energy Harvesting Wireless Sensor Networks
Creators: name: Michelusi, Nicolo
name: Zorzi, Michele
Publisher: name: arXiv
Year: 2014
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: Wireless sensors can integrate rechargeable batteries and energy-harvesting (EH) devices to enable long-term, autonomous operation, thus requiring intelligent energy management to limit the adverse impact of energy outages. This work considers a network of EH wireless sensors, which report packets with a random utility value to a fusion center (FC) over a shared wireless channel. Decentralized access schemes are designed, where each node performs a local decision to transmit/discard a packet, based on an estimate of the packet's utility, its own energy level, and the scenario state of the EH process, with the objective to maximize the average long-term aggregate utility of the packets received at the FC. Due to the non-convex structure of the problem, an approximate optimization is developed by resorting to a mathematical artifice based on a game theoretic formulation of the multiaccess scheme, where the nodes do not behave strategically, but rather attempt to maximize a \emph{common} network utility with respect to their own policy. The symmetric Nash equilibrium (SNE) is characterized, where all nodes employ the same policy; its uniqueness is proved, and it is shown to be a local maximum of the original problem. An algorithm to compute the SNE is presented, and a heuristic scheme is proposed, which is optimal for large battery capacity. It is shown numerically that the SNE typically achieves near-optimal performance, within 3% of the optimal policy, at a fraction of the complexity, and two operational regimes of EH-networks are identified and analyzed: an energy-limited scenario, where energy is scarce and the channel is under-utilized, and a network-limited scenario, where energy is abundant and the shared wireless channel represents the bottleneck of the system.
description: IEEE Transactions on Communications
ROLE OF THE GUT VASCULAR BARRIER IN METASTATIC COLON CANCER
Creators: name: BERTOCCHI, ALICE
Publisher: name: Universit� degli Studi di Milano
Year: 2019

description: Spreading of neoplastic cells from colon cancer to regional lymph nodes (LN) is often associated with distant recurrence. However, a number of clinical trials have shown that lymphadenectomy is not increasing Colon Cancer (CC) patient?s survival. This phenomenon is probably due to a metastatic dissemination that occurs via the systemic blood circulation, rather than the lymphatic vessels. How such dissemination is achieved is unknown. We hypothesized that the disruption of the vasculature in colon tumors can be linked to cancer cells dissemination. We identified a new marker of deranged vasculature which is expressed in primary tumors of CC patients that have developed metachronous distant metastases, independently from the presence of metastases in regional LN. Moreover, we studied vasculature disruption in a mouse model that develops spontaneous tumors mainly in the colon. These mice showed dismantled vasculature at tumor level and they concomitantly exhibited the formation of a pre-metastatic niche at distant sites which favored the recruitment of metastatic cells. Vascular impairment can shed light on the process of colon metastases and this new marker can be used as a prognostic marker for distant recurrence.
Cardiopulmonary fitness in children/adolescents with chronic kidney disease and the impact of exercise training: a systematic review and meta-analysis of observational study and randomized controlled trials
Creators: name: Zhang, Fan
name: Bai, Yan
name: Huang, Liuyan
name: Zhong, Yifei
Publisher: name: Taylor & Francis
Year: 2025
Subjects: Medicine
Biological Sciences not elsewhere classified
Marine Biology
Science Policy

description: This systematic review and meta-analysis aimed to evaluate differences in cardiopulmonary fitness between healthy controls and children/adolescents with chronic kidney disease (CKD) and the effects of exercise training. PubMed, Embase, Scopus and Web of Science were searched for published studies from reception to 14 June 2023, and updated search on 15 October 2023. The included observational studies reported on cardiorespiratory fitness, included maximal oxygen uptake (VO2max), peak oxygen consumption (VO2peak) and 6-minute walk distance (6MWD), in children/adolescents with CKD and age-matched healthy controls, as well as clinical intervention trials of exercise training on cardiorespiratory fitness in samples of children and/or adolescents up to 19. Fifteen observational studies and five clinical trials were included, respectively. The studies found that the mean cardiopulmonary fitness was 1.82 standardized mean differences (SMDs) units (95% confidence interval (95% CI) 1.43–2.20) lower in children/adolescents with CKD than in healthy controls or reference values. Except for pre-dialysis CKD patients, peritoneal dialysis, haemodialysis and kidney transplant recipients had significantly lower cardiorespiratory fitness than healthy controls. The results of a meta-analysis based on a pre-post single-arm trial showed that compared to baseline, exercise training improved the 6MWD by approximately 58.17 m (95% CI 16.27–100.06), with very low evidence. This systematic review and meta-analysis of observational studies and clinical trials that included children/adolescents with CKD found that cardiorespiratory fitness is severely reduced in this population and that exercise training may be an effective strategy for improvement. Given the low evidence certainty, additional high-quality trials are necessary. Cardiorespiratory fitness in children/adolescents with CKD was approximately 12.38 mL/kg/min (SMD: 1.82; 95% confidence interval (95% CI) 1.43–2.20) lower than in age-matched healthy controls.Exercise intervention improves 6-minute walking distance in children/adolescents with CKD (MD: 58.17; 95% CI 16.27–100.06).Assessment of physical functioning should be incorporated into daily clinical practice for children/adolescent CKD patients. Cardiorespiratory fitness in children/adolescents with CKD was approximately 12.38 mL/kg/min (SMD: 1.82; 95% confidence interval (95% CI) 1.43–2.20) lower than in age-matched healthy controls. Exercise intervention improves 6-minute walking distance in children/adolescents with CKD (MD: 58.17; 95% CI 16.27–100.06). Assessment of physical functioning should be incorporated into daily clinical practice for children/adolescent CKD patients.
Supplementary document for Dual-Wavelength Absorption Technique for Dryness Measurement of Wet Steam - 6318332.pdf
Creators: name: CHANDRA, MANISH
name: Seshadri, Satyanarayanan
name: Vasa, Nilesh
Publisher: name: Optica Publishing Group
Year: 2023
Subjects: Uncategorized

description: Supplement 1
Convergence of multipole Green functions
Creators: name: Dieu, Nguyen Quand
name: Thomas, Pascal J.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Complex Variables (math.CV)
subject: FOS: Mathematics
subject: 32U35, 32U20

description: We continue the study of convergence of multipole pluricomplex Green functions for a bounded hyperconvex domain of $\mathbb C^n$, in the case where poles collide. We consider the case where all poles do not converge to the same point in the domain, and some of them might go to the boundary of the domain. We prove that weak convergence will imply convergence in capacity; that it implies convergence uniformly on compacta away from the poles when no poles tend to the boundary; and that the study can be reduced, in a sense, to the case where poles tend to a single point. Furthermore, we prove that the limits of Green functions can be obtained as limits of functions of the type $\max_{1\le i\le 3n} \frac{1}{p} \log |f_i|$, where the $f_i$ are holomorphic functions.
description: To appear in Indiana University Mathematics Journal
title: Arbre_18
Creators: name: Ségolène Delamare
name: Galinand, Cyrille
name: Université Paris1 Panthéon-Sorbonne
Publisher: name: Archeovision
Year: 2023
Subjects: subject: arborglyphe

description: arborglyphe
description: 1 fichier 3D (ply), 39 fichiers image (jpg)
Zur Relevanz der Erforschung von Emotionen im Sachunterricht – ein Plädoyer
Creators: name: Böse, Sarah
name: Spiegler, Juliane
Publisher: name: widerstreit sachunterricht
Year: 2022
Subjects: subject: 000

description: Es gibt keinen Sachunterricht ohne Emotionen. Sie spielen nicht nur bewusst oder unbewusst bei didaktisch-methodischen Entscheidungen der Lehrer*innen eine Rolle, sie sind auch per-manent im Unterricht präsent – als Aufregung bei Klassenarbeiten, Nervosität bei einer Er-gebnispräsentation oder häufige Langeweile (vgl. Breidenstein 2006), um nur einige Beispiele zu nennen. Speziell im Sachunterricht können darüber hinaus Emotionen zum Unterrichts-thema werden oder insofern expliziert, also manifest werden, wenn es um Themen wie Krieg und Frieden, Tod und Trauer u.Ä. geht. Und auch implizit bzw. latent sind Emotionen bei jedem Thema präsent – der Sachunterricht greift sie sogar als didaktisches Prinzip in einem am Phänomen orientierten Unterricht auf, indem er Neugierde und Faszination bei Kindern auslösen will. Weil Emotionen auf so vielfältige Weise im Sachunterricht in Erscheinung tre-ten können, scheint es sinnvoll und notwendig, sich ihnen auch in der Sachunterrichtsfor-schung zu widmen, und zwar auf Grund ihrer vielfältigen immanenten Erscheinungsformen im (Sach-)Unterricht zunächst als sozialem Phänomen, welches es zu rekonstruieren gilt, um es grundständig zu verstehen. Um sich dem anzunähern, wird in diesem Beitrag für dessen rekonstruktive empirische Erforschung plädiert, wofür exemplarisch zwei unterschiedliche Forschungszugänge vorgestellt werden. Insofern soll im Folgenden vorrangig die Perspektive der Forschung eingenommen werden, die Emotionen im Sachunterricht als latentem Phäno-men nachgeht, um einen ersten Anknüpfungspunkt für weitere Sachunterrichtsforschung zu bieten.
A Stochastic Model for Electron Transfer in Bacterial Cables
Creators: name: Michelusi, Nicolo
name: Pirbadian, Sahand
name: El-Naggar, Mohamed Y.
name: Mitra, Urbashi
Publisher: name: arXiv
Year: 2014
Subjects: subject: Emerging Technologies (cs.ET)
subject: FOS: Computer and information sciences

description: Biological systems are known to communicate by diffusing chemical signals in the surrounding medium. However, most of the recent literature has neglected the electron transfer mechanism occurring amongst living cells, and its role in cell-cell communication. Each cell relies on a continuous flow of electrons from its electron donor to its electron acceptor through the electron transport chain to produce energy in the form of the molecule adenosine triphosphate, and to sustain the cell's vital operations and functions. While the importance of biological electron transfer is well-known for individual cells, the past decade has also brought about remarkable discoveries of multi-cellular microbial communities that transfer electrons between cells and across centimeter length scales, e.g., biofilms and multi-cellular bacterial cables. These experimental observations open up new frontiers in the design of electron-based communications networks in microbial communities, which may coexist with the more well-known communication strategies based on molecular diffusion, while benefiting from a much shorter communication delay. This paper develops a stochastic model that links the electron transfer mechanism to the energetic state of the cell. The model is also extensible to larger communities, by allowing for electron exchange between neighboring cells. Moreover, the parameters of the stochastic model are fit to experimental data available in the literature, and are shown to provide a good fit.
description: IEEE Journal on Selected Areas in Communications
Klimawandel unterrichten: Vorwissen und Sichtweisen von angehenden Lehrpersonen der Primarstufe
Creators: name: Breitenmoser, Petra
name: Keller-Schneider, Manuela
Publisher: name: widerstreit sachunterricht
Year: 2022
Subjects: subject: 000

description: Dem Klimawandel zu begegnen ist eine der zentralen gesellschaftlichen Herausforderungen (IPCC 2018). Aufgabe der Schule ist es, den Lernenden ein Verständnis von komplexen Zusammenhängen zu vermitteln, um diesen im Rahmen demokratischer Aushandlungsprozesse einen verantwortungsvollen Umgang mit der Problematik und ein reflektiertes Handeln zu ermöglichen. Der Lerngegenstand wird jedoch an vielen Primarschulen der Schweiz vermieden, obwohl Kenntnisse zu zentralen Aspekten der Thematik auf dieser Stufe aufgebaut werden könnten. Im vorliegenden Aufsatz wird eine multi-methodische Studie präsentiert, die sich auf den berufsbiografisch orientierten stress- und ressourcentheoretisch begründeten Ansatz zur Professionalisierung von Keller-Schneider (2020) stützt. Geprüft wird, welche Anforderungen von den Studierenden als Herausforderung wahrgenommen werden, inwiefern diese während der Ausbildung zu einer intensiven Auseinandersetzung führen und inwiefern Kontextfaktoren von Bedeutung sind. In einer schriftlichen Umfrage mit offenen und skalierten Fragen sowie in semi-strukturierten Einzelinterviews werden Studierende einer Lehrveranstaltung im Bereich Natur, Mensch, Gesellschaft/Sachunterricht während des letzten Semesters ihres einphasigen Studiums (mit integrierter Praxis) an der Pädagogischen Hochschule Zürich befragt. Dabei werden themenspezifische Aspekte wie Fachwissen zum Treibhauseffekt, selbst- und sachbezogene Sichtweisen und Überzeugungen, Motive die Thematik zu unterrichten oder das eigene Umweltbewusstsein erfasst. Ergebnisse der Fragebogenerhebung zum Vorwissen und zu themenbezogenen Sichtweisen zu Beginn der Lehrveranstaltung zeigen, dass alle Studierenden als Hauptursache für den Klimawandel den Menschen sehen. Die Ausprägungen der Sichtweisen und des Fachwissens sind heterogen; es konnten neun Typen ermittelt werden, die sich bezüglich Fachwissen und Sichtweisen unterscheiden.
Interplay of driving and frequency noise in the spectra of vibrational systems
Creators: name: Zhang, Yaxing
name: Moser, J.
name: Bachtold, A.
name: Dykman, M. I.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study the spectral effect of the fluctuations of the vibration frequency. Such fluctuations play a major role in nanomechanical and other mesoscopic vibrational systems. We find that, for periodically driven systems, the interplay of the driving and frequency fluctuations results in specific spectral features. We present measurements on a carbon nanotube resonator and show that our theory allows not only the characterization of the frequency fluctuations but also the quantification of the decay rate without ring-down measurements. The results bear on identifying the decoherence of mesoscopic oscillators and on the general problem of resonance fluorescence and light scattering by oscillators.
description: In the revised version we extended the comparison of the theory and the experiment and shortened the discussion of nonlinear effects
Large Size GEM for Super Bigbite Spectrometer (SBS) Polarimeter for Hall A 12 GeV program at JLab
Creators: name: Gnanvo, Kondo
name: Liyanage, Nilanga
name: Nelyubin, Vladimir
name: Saenboonruang, Kiadtisak
name: Sacher, Seth
name: Wojtsekhowski, Bogdan
Publisher: name: arXiv
Year: 2014
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: We report on the R&D effort in the design and construction of a large size Gas Electron Multiplier (GEM) for the Proton Polarimeter Back Tracker (BT) of the Super Bigbite Spectrometer (SBS) in Hall A at Thomas Jefferson National Laboratory (JLab). The SBS BT GEM trackers consist of two sets of five large GEM xchambers of size 60 x 200 cm2. The GEM chamber is a vertical stack of four GEM modules, each with an active area of 60 x 50 cm2. We have built and tested several prototypes and the construction of GEM modules for SBS BT is ongoing. We describe in this paper the design and construction of the GEM module prototype as well as the preliminary results on performance from tests carried out in our detector lab and during test beam at Fermi National Laboratory (Fermilab).
description: 17 pages, 14 Figures
Handeln und Lernen an Experimentierstationen
Creators: name: Giest, Hartmut
Publisher: name: widerstreit sachunterricht
Year: 2022
Subjects: subject: 000

description: Nicht nur in Deutschland bleiben die Schüler*innen besonders mit Blick auf naturwissenschaftlich-technisches Lernen hinter ihren Lernmöglichkeiten zurück (TIMSS 2015), weshalb im Rahmen von schulischen sowie außerschulischen Fördermaßnahmen (z.B. MINT-Initiativen, siehe BMBF 2012) naturwissenschaftliches Lernen öffentlich und privat gefördert wird (Freericks 2011; Scharfenberg et al. 2019). Vor allem die Effekte außerschulischer Lernangebote sind jedoch eher als bescheiden oder wenigstens widersprüchlich einzuschätzen (Guderian 2007), u.a. weil die Einbindung in den Unterricht und eine inhaltlich abgestimmte Lerner*innenaktivierung nicht gelingen (Lucas 2000; Anderson et al. 2003; Waltner & Wiesner 2006; Falk 2006). Dennoch werden sie als notwendige Unterstützung angesehen, um die Qualität naturwissenschaftlichen Unterrichts zu verbessern. Aus diesem Grund ist es besonders geboten, entsprechende Projekte (im Sinne von Praxis-, Feld- bzw. Entwicklungsforschung) sorgfältig zu evaluieren.Dies ist Gegenstand der vorliegenden Studie. Im Rahmen eines von den Stadtwerken Potsdam geförderten Projekts sollten praxistaugliche Experimentierstationen zu physikalischen Inhalten des Sachunterrichts (Wasser, Energie, Umwelt, Mobilität) für außerschulisches Lernen entwickelt und evaluiert werden.Da die Praxisbedingungen beachtet werden sollten, ist es im Gegensatz zu Laborstudien oder auch empirisch-analytischen quasi-experimentellen Studien hier nicht möglich, über Variablenkontrolle alle wesentlichen Bedingungen der untersuchten Effekte zu kontrollieren oder die Randomisierung des Samples zu realisieren. Daher sind keine Aussagen darüber zu erwarten, ob und unter welchen sauber kontrollierten Bedingungen bestimmte Effekte (z.B. des Lernens) zu beobachten sind. Geleistet werden kann zu untersuchen, welche Effekte unter „normalen“ Feld- oder Praxisbedingungen hinsichtlich außerschulischer Lernangebote beobachtbar und in der (gegebenen) Praxis beeinflussbar sind.
100 Years of Horticultural Research in TNAU
Creators: name: C. Ravindran, R.Balakumbahan I. Muthuvel and J, Rajangam
Publisher: name: The Science world a Monthly e magazine
Year: 2023

description: The Tamil Nadu Agricultural University (TNAU) had its genesis from establishment of an Agricultural School at Saidapet, Madras, Tamil Nadu, as early as 1868 and it was later relocated at Coimbatore. In 1920 it was affiliated to Madras University. TNAU assumed full responsibilities of Agricultural Education and Research and supported the State Agricultural Department by delivering research products. Till 1946, the Agricultural College and Research Institute, Coimbatore, was the only Institute for Agricultural Education for the whole of South India. In 1958, it was recognized as a Post-graduate Centre leading to Masters and Doctoral degrees. The Agricultural College and Research Institute, Madurai was established in 1965. These two colleges formed the nucleus of the Tamil Nadu Agricultural University while it was established in 1971. The number of varieties released from TNAU in fruits, vegetables, flowers, plantation crops, medicinal and aromatic crops for the benefit of farming communities
Methodologie und Methodiken in der Forschung zum Sachunterricht
Creators: name: Giest, Hartmut
Publisher: name: widerstreit sachunterricht
Year: 2022
Subjects: subject: 000

description: Im Folgenden werden einige Fragen benannt, welche für die Didaktik des Sachunterrichts als empirischer Wissenschaft Bedeutung haben und in Forschungsarbeiten in den letzten Jahren zutage getreten sind. Solche Fragen sind jene nach der Spezifik der Disziplin, dem Verhältnis von Empirie und Theorie, dem Reduktionsproblem, dem Verhältnis von Theorie und Praxis, die alle eng mit dem Problem der theoriebasierten und methodologischen Reflexion zusammenhängen. Ohne den Anspruch zu haben, diese Fragen abschließend beantworten und das benannte Problem lösen zu wollen, sollen Denkanstöße vor allem zur methodologischen Reflexion und methodentheoretischen Grundlegung von empirischen Untersuchungen gegeben werden, die aus der philosophisch-erkenntnistheoretischen Perspektive stammen und relativ wenig in der gegenwärtigen Literatur präsent bzw. z.T. auch etwas in Vergessenheit geraten sind (Giest 2019, 2020).
Protected subspace Ramsey spectroscopy
Creators: name: Ostermann, Laurin
name: Plankensteiner, David
name: Ritsch, Helmut
name: Genes, Claudiu
Publisher: name: arXiv
Year: 2014
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study a modified Ramsey spectroscopy technique employing slowly decaying states for quantum metrology applications using dense ensembles. While closely positioned atoms exhibit superradiant collective decay and dipole-dipole induced frequency shifts, recent results [Ostermann, Ritsch and Genes, Phys. Rev. Lett. \textbf{111}, 123601 (2013)] suggest the possibility to suppress such detrimental effects and achieve an even better scaling of the frequency sensitivity with interrogation time than for noninteracting particles. Here we present an in-depth analysis of this 'protected subspace Ramsey technique' using improved analytical modeling and numerical simulations including larger 3D samples. Surprisingly we find that using sub-radiant states of $N$ particles to encode the atomic coherence yields a scaling of the optimal sensitivity better than $1/\sqrt{N}$. Applied to ultracold atoms in 3D optical lattices we predict a precision beyond the single atom linewidth.
description: 9 pages, 7 figures
Chiral Symmetry Breaking and the Quantum Hall Effect in Monolayer Graphene
Creators: name: Roy, Bitan
name: Kennett, Malcolm P.
name: Sarma, S. Das
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Monolayer graphene in a strong magnetic field exhibits quantum Hall states at filling fractions $ν= 0$ and $ν= \pm 1$ that are not explained within a picture of noninteracting electrons. We propose that these states arise from interaction-induced chiral symmetry-breaking orders. We argue that when the chemical potential is at the Dirac point, weak on-site repulsion supports an easy-plane antiferromagnet state, which simultaneously gives rise to ferromagnetism oriented parallel to the magnetic field direction, whereas for $|ν|=1$ easy-axis antiferromagnet and charge-density-wave orders coexist. We perform self-consistent calculations of the magnetic field dependence of the activation gap for the $ν= 0$ and $|ν| = 1$ states and obtain excellent agreement with recent experimental results. Implications of our study for fractional Hall states in monolayer graphene are highlighted.
description: 5 pages, 3 figures + Supplementary Materials (3.5 pages, 2 figures): Published version, typos corrected, new references
Exklusion(serfahrungen) als Ausgangspunkt inklusiver politischer Bildung im Sachunterricht – eine theoretische und empirische Annäherung
Creators: name: Kallweit, Nina
name: Woloschuk, Nicole
Publisher: name: widerstreit sachunterricht
Year: 2022
Subjects: subject: 000

description: Mit der Verabschiedung der UN-Convention on the Rights of Persons with Disabilities im Jahr 2006, die 2009 in Deutschland ratifiziert wurde, ist die gleichberechtigte gesellschaftliche Teilhabe für Menschen mit Beeinträchtigungen rechtlich verankert worden. Der Fokus der öffentlichen Debatte in Deutschland konzentrierte sich in der Folge vor allem auf das Bildungswesen. Durch die bis dahin weitestgehende Beschulung von Menschen mit Beeinträchtigungen im Sonder- bzw. Förderschulwesen war bzw. ist ihre „institutionalisierte Sonderbe-handlung“ (Kronauer 2015, S. 20) offensichtlich. Neben systembezogenen Veränderungen bedarf es jedoch gleichermaßen (fach-)didaktischer Auseinandersetzungen und Reflexionsprozesse, um Schule und (Fach-)Unterricht inklusiv zu gestalten. Mittlerweile sind deshalb auch die einzelnen Fachdidaktiken angehalten, eine inklusive Fachdidaktik zu entwickeln (vgl. Pech, Schomaker & Simon 2018a, S. 5f.).Für die Didaktik des Sachunterrichts und die Didaktik der politischen Bildung ergeben sich dabei besondere Anknüpfungspunkte. Anliegen des Beitrags ist es, die drei Stränge – Sachunterrichtsdidaktik, Didaktik der politischen Bildung und Inklusion – miteinander zu verbinden und für die theoretisch und empirisch fundierte (Weiter-)Entwicklung inklusiver politischer Bildung im Sachunterricht fruchtbar zu machen.Im ersten Teil des Beitrags werden dazu fachdidaktische Begründungslinien für eine mögliche Ausrichtung inklusiver politischer Bildung im Sachunterricht skizziert, die vor allem auf einer inhaltlich-konzeptionellen Ebene zu verorten sind und als Grundzüge inklusiver politischer Bildung im Sachunterricht verstanden werden können. Die Ausführungen dienen gleichsam als Grundlage für die Identifikation von relevanten Forschungsfeldern. Die empirische Konkretisierung dieser theoretisch fundierten Überlegungen erfolgt im zweiten Teil des Beitrags durch die Vorstellung des Promotionsvorhabens von Nicole Woloschuk. Am Beispiel Migration untersucht sie in ihrem Projekt Exklusion(serfahrungen) aus der Perspektive von Grundschüler*innen, um auf dieser Grundlage sowohl Impulse für die Gestaltung inklusiver politischer Bildungs- und Lern- als auch Forschungsprozesse (im Sachunterricht) zu generieren.