cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
An Examination of Organizational Responses to Mega-Threat Events
Creators: name: Ubaka, Adaora A
Publisher: name: University of Illinois at Chicago
Year: 2023
Subjects: Uncategorized

description: Mega-threat events are adverse, highly publicized events, in which someone or a group of people are harmed, threatened, or targeted because of their membership within a specific social identity group (Leigh & Melwani, 2019). A recent example of such an event is the grocery store mass shooting of Black Americans in Buffalo, New York in May 2022. In the aftermath of such events, many organizations grapple with whether to issue a response to their employees. Moreover, when organizations elect to publish or communicate a response to their employees, they struggle with how to respond in a way that is credible, and sensitive to the needs of employees whose social identity group is most impacted. While there is burgeoning scholarship on mega-threat events and their impact on organizational life, there is a specific need to understand how organizational communication about such events could impact employees’ perceptions and the employee-employer relationship. Drawing on signaling theory (Spence, 1973) and the psychological contract literature, across three experimental studies (N = 1, 100), we shed light on this organizational policy dilemma. In Study 1, we test whether an organizational response to a mega-threat event is a contemporary obligation within the modern employee-employer relationship as measured by anticipated psychological contract violation. In Study 2, we introduce, test, and identify organizational event sensegiving as a type of organizational communication process in the context of a mega-threat event that could generate positive organizational perceptions. We find that this relationship is mediated by identity safety for those whose social identity group is most directly affected by the mega-threat event (i.e., Asian participants), and perceived organizational support (POS) for all participants. Lastly, in Study 3 (pre-registered replication), we replicate the findings from Study 2 and test whether timeliness of organizational communication (immediate/well before other organizations vs. delayed/well after other organizations have responded) moderates the relationships found in Study 2. Implications for theory and practice are discussed.
Stettler, Carl Friedrich
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1826

description: Ort: Schmiedeberg / Breslau
description: Verzeichnung=Description=Inventaire 05.07.2020 Automatisiert nach HAN-Import
description: Verzeichnung=Description=Inventaire ISAD(G) / HAN Katalogisierungsregeln für Archivbestände Detailliert
Topological directed amplification
Creators: name: Midya, Bikashkali
Publisher: name: arXiv
Year: 2022
Subjects: subject: Optics (physics.optics)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Mathematical Physics (math-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A phenomenon of topological directed amplification of certain initial perturbations is revealed theoretically to emerge in a class of asymptotically stable skin-effect lattices described by nonnormal Toeplitz operators $H_g$ with positive ``numerical ordinate" $ω(H_g)>0$. Nonnormal temporal evolution, even in the presence of global dissipation, is shown to manifest a counterintuitive transient phase of edge-state amplification -- a behavior, drastically different from the asymptote, that spectral analysis of $H_g$ fails to directly reveal. A consistent description of the effect is provided by the general tool of ``pseudospectrum", and a quantitative estimation of the maximum power amplification is provided by the {\it Kreiss constant}. A recipe to determine an optimal initial condition that will attain maximum amplification power is given by singular value decomposition of the propagator $e^{-i H_g t}$. It is further predicted that the interplay between nonnormality and nonlinearity in a skin-effect laser array can facilitate narrow-emission spectra with scalable stable-output power.
Tomographic imaging of asymmetric molecular orbitals with a two-color multicycle laser field
Creators: name: Qin, Meiyan
name: Zhu, Xiaosong
name: Zhang, Qingbin
name: Lu, Peixiang
Publisher: name: arXiv
Year: 2013
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Chemical Physics (physics.chem-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We theoretically demonstrate a scheme for tomographic reconstruction of asymmetric molecular orbitals based on high-order harmonic generation with a two-color multicycle laser field. It is shown that by adjusting the relative phase of the two fields, the returning electrons can be forced to recollide from one direction for all the orientations of molecules. Thus the reconstruction of the asymmetric orbitals can be carried out with multicycle laser field. This releases the stringent requirement of a single-cycle pulse with a stabilized and controllable carrier-envelop phase for the tomographic imaging of asymmetric molecular orbitals.
description: 3 pages, 4 figures, journal article
The curious case of GW200129: interplay between spin-precession inference and data-quality issues
Creators: name: Payne, Ethan
name: Hourihane, Sophie
name: Golomb, Jacob
name: Udall, Rhiannon
name: Davis, Derek
name: Chatziioannou, Katerina
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Measurement of spin-precession in black hole binary mergers observed with gravitational waves is an exciting milestone as it relates to both general relativistic dynamics and astrophysical binary formation scenarios. In this study, we revisit the evidence for spin-precession in GW200129 and localize its origin to data in LIGO Livingston in the 20--50\,Hz frequency range where the signal amplitude is lower than expected from a non-precessing binary given all the other data. These data are subject to known data quality issues as a glitch was subtracted from the detector's strain data. The lack of evidence for spin-precession in LIGO Hanford leads to a noticeable inconsistency between the inferred binary mass ratio and precessing spin in the two LIGO detectors, something not expected from solely different Gaussian noise realizations. We revisit the LIGO Livingston glitch mitigation and show that the difference between a spin-precessing and a non-precessing interpretation for GW200129 is smaller than the statistical and systematic uncertainty of the glitch subtraction, finding that the support for spin-precession depends sensitively on the glitch modeling. We also investigate the signal-to-noise ratio $\sim7$ trigger in the less sensitive Virgo detector. Though not influencing the spin-precession studies, the Virgo trigger is grossly inconsistent with the ones in LIGO Hanford and LIGO Livingston as it points to a much heavier system. We interpret the Virgo data in the context of further data quality issues. While our results do not disprove the presence of spin-precession in GW200129, we argue that any such inference is contingent upon the statistical and systematic uncertainty of the glitch mitigation. Our study highlights the role of data quality investigations when inferring subtle effects such as spin-precession for short signals such as the ones produced by high-mass systems.
description: 17 pages, 14 figures, 2 tables. Data release: https://zenodo.org/record/7259655
Schwab, Lipman & Söhne
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1826

description: Ort: Fellheim
description: Verzeichnung=Description=Inventaire 05.07.2020 Automatisiert nach HAN-Import
description: Verzeichnung=Description=Inventaire ISAD(G) / HAN Katalogisierungsregeln für Archivbestände Detailliert
title: Realisierung einer UART zur CAN Kommunikationsbrücke mit Hilfe eines STM32 ARM Microcontrollers
title: Realization of a UART to CAN communication bridge using a STM32 ARM microcontroller
Creators: name: Samdouni, Fouzya
Publisher: name: Fachhochschule Dortmund
Year: 2023
Subjects: subject: 621.3 Elektrotechnik, Elektronik

description: Diese Bachelorarbeit beschäftigte sich mit der Realisierung einer UART-zu-CAN-Kommunikationsbrücke mithilfe eines STM32L476RG ARM Mikrocontrollers. Ziel des Projekts war es, die Kommunikation zwischen zwei PCs und zwei Mikrocontrollern über UART und CAN zu ermöglichen. Die Arbeit umfasste die physische Verbindung der Komponenten, die Programmierung der Mikrocontroller mit Hilfe von STMCubeIDE und CubeMX sowie die Erstellung einer Benutzeroberfläche mit Qt Creator. Die CAN-Protokolleinheit im STM32L476RG Mikrocontroller spielte eine zentrale Rolle in diesem Projekt. Sie ermöglichte die CAN-Kommunikation nach erfolgreicher Konfiguration. Durch die Überwachung der Signale über ein Oszilloskop konnte die ordnungsgemäße Datenübertragung festgestellt werden. Die Arbeit präsentiert die Konfiguration der UART- und CAN-Schnittstellen sowie die Implementierung von Kommunikationsprotokollen, um Nachrichten zwischen den PCs und Mikrocontrollern auszutauschen. Die Ergebnisse zeigen, dass die Kommunikationsbrücke erfolgreich realisiert wurde und die Datenübertragung zuverlässig funktioniert. Diese Arbeit liefert somit einen wertvollen Beitrag zur Entwicklung von Kommunikationslösungen in eingebetteten Systemen und zeigt, wie Mikrocontroller effektiv für die Realisierung von Kommunikationsbrücken eingesetzt werden können. Dieses Projekt eröffnet Möglichkeiten für zukünftige Anwendungen, bei denen die Vernetzung von Mikrocontrollern und PCs erforderlich ist.
description: This bachelor's thesis focused on the implementation of a UART-to-CAN communication bridge using an STM32L476RG ARM microcontroller. The project aimed to enable communication between two PCs and two microcontrollers via UART and CAN. The work included the physical connection of the components, programming the microcontrollers using STMCubeIDE and CubeMX, and creating a user interface with Qt Creator. The CAN protocol unit in the STM32L476RG microcontroller played a central role in the communication after successful configuration. By monitoring signals on the oscilloscope proper data transmission has been ensured. The thesis presents the configuration of the UART and CAN interfaces and the implementation of communication protocols to exchange messages between the PCs and microcontrollers. The results demonstrate the successful realization of the communication bridge, with reliable data transmission. This work, therefore, makes a valuable contribution to the development of communication solutions in embedded systems, demonstrating how microcontrollers can effectively realize communication bridges. This project opens avenues for future applications where networking microcontrollers and PCs is necessary.
Nonlinear speed-ups in ultracold quantum gases
Creators: name: Deffner, Sebastian
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: Quantum mechanics is an inherently linear theory. However, collective effects in many body quantum systems can give rise to effectively nonlinear dynamics. In the present work, we analyze whether and to what extent such nonlinear effects can be exploited to enhance the rate of quantum evolution. To this end, we compute a suitable version of the quantum speed limit for numerical and analytical examples. We find that the quantum speed limit grows with the strength of the nonlinearity, yet it does not trivially scale with the ``degree'' of nonlinearity. This is numerically demonstrated for the parametric harmonic oscillator obeying Gross-Piteavskii and Kolomeisky dynamics, and analytically for expanding boxes under Gross-Pitaevskii dynamics.
description: 7 pages, 5 figures
Loo.py: transformation-based code generation for GPUs and CPUs
Creators: name: Klöckner, Andreas
Publisher: name: arXiv
Year: 2014
Subjects: subject: Programming Languages (cs.PL)
subject: Mathematical Software (cs.MS)
subject: Numerical Analysis (math.NA)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics
subject: D.3.4; D.1.3; G.4

description: Today's highly heterogeneous computing landscape places a burden on programmers wanting to achieve high performance on a reasonably broad cross-section of machines. To do so, computations need to be expressed in many different but mathematically equivalent ways, with, in the worst case, one variant per target machine. Loo.py, a programming system embedded in Python, meets this challenge by defining a data model for array-style computations and a library of transformations that operate on this model. Offering transformations such as loop tiling, vectorization, storage management, unrolling, instruction-level parallelism, change of data layout, and many more, it provides a convenient way to capture, parametrize, and re-unify the growth among code variants. Optional, deep integration with numpy and PyOpenCL provides a convenient computing environment where the transition from prototype to high-performance implementation can occur in a gradual, machine-assisted form.
Revised SI (15-09-2020)-RSOS.docx from Terpyridine-metal complexes: effects of different substituents on their physico-chemical properties and density functional theory studies
Creators: name: Mughal, Ehsan Ullah
name: Mirzaei, Masoud
name: Sadiq, Amina
name: Fatima, Sana
name: Naseem, Ayesha
name: Nafeesa Naeem
name: Nighat Fatima
name: Kausar, Samia
name: Altaf, Ataf Ali
name: Zafar, Muhammad Naveed
name: Khan, Bilal Ahmad
Publisher: name: The Royal Society
Year: 2020
Subjects: Biochemistry

description: A series of different substituted terpyridine-based ligands have been synthesized by Kröhnke method. Their binding behaviour was evaluated by complexing them with Co(II), Fe(II), and Zn(II) ions which resulted in interesting coordination compounds with formulas, [Zn(mttpy)2]PF6, [Co(mttpy)2](PF6)2, [Fe(mttpy)2](PF6)2 and interesting spectroscopic properties. Their absorption and emission behaviours in dilute solutions were investigated in order to explain structure–property associations and demonstrate the impact of different aryl substituents on the terpyridine scaffold as well as the role of the metal on the complexes. Photo-luminescence analysis of the complexes in acetonitrile solution revealed a transition from hypsochromic to bathochromic shift. All the compounds displayed remarkable photo-luminescent properties and various maximum emission peaks owing to the different nature of the functional groups. Furthermore, the anti-microbial potential of ligands and complexes was evaluated with docking analyses carried out to investigate the binding affinity of terpyridine-based ligands along with corresponding proteins (shikimate dehydrogenase and penicillin-binding protein) binding sites. To obtain further insight into molecular orbital distributions and spectroscopic properties, DFT calculations were performed for representative complexes. The photophysical activity and interactions between chromophore structure and properties were both investigated experimentally as well as theoretically.
Schneck, J. C., sel. Enkel
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1826

description: Ort: Glatz
description: Verzeichnung=Description=Inventaire 05.07.2020 Automatisiert nach HAN-Import
description: Verzeichnung=Description=Inventaire ISAD(G) / HAN Katalogisierungsregeln für Archivbestände Detailliert
Serre's Modularity Conjecture
Creators: name: Schein, Michael M.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11F80

description: These are the lecture notes from a five-hour mini-course given at the Winter School on Galois Theory held at the University of Luxembourg in February 2012. Their aim is to give an overview of Serre's modularity conjecture and of its proof by Khare, Wintenberger, and Kisin, as well as of the results of other mathematicians that played an important role in the proof. Along the way we remark on some recent (as of 2012) work concerning generalizations of the conjecture.
Singeisen, Niclaus, Wirt, des Raths (zum Wilden Mann)
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1826

description: Ort: Basel
description: Verzeichnung=Description=Inventaire 05.07.2020 Automatisiert nach HAN-Import
description: Verzeichnung=Description=Inventaire ISAD(G) / HAN Katalogisierungsregeln für Archivbestände Detailliert
Tigecycline Soft Tissue Penetration in Obese and Non-obese Surgical Patients Determined by Using In Vivo Microdialysis
Creators: name: Dorn, Christoph
name: Petroff, David
name: Kratzer, Alexander
name: Kees, Frieder
name: Kloft, Charlotte
name: Zeitlinger, Markus
name: Wrigge, Hermann
name: Simon, Philipp
Publisher: name: Universität Regensburg
Year: 2022
Subjects: subject: 615 Pharmazie

description: Background and objective: Tigecycline, a broad-spectrum glycylcycline antibiotic, is approved for use at a fixed dose irrespective of body weight. However, its pharmacokinetics may be altered in obesity, which would impact on the antibiotic's effectiveness. The objective of this study was to investigate the plasma and subcutaneous tissue concentrations of tigecycline in obese patients compared with those in a non-obese control group. Methods: Fifteen obese patients (one class II and 14 class III) undergoing bariatric surgery and 15 non-obese patients undergoing intra-abdominal surgery (mainly tumour resection) received a single dose of 50 or 100 mg tigecycline as an intravenous short infusion. Tigecycline concentrations were measured up to 8 h after dosing in plasma (total concentration), in ultrafiltrate of plasma (free concentration), and in microdialysate from subcutaneous tissue, respectively. Results: In obese patients, total peak plasma concentration (1.31 ± 0.50 vs 2.27 ± 1.40 mg/L) and the area under the concentration-time curve from 0 to 8 h (AUC8h,plasma: 2.15 ± 0.42 vs 2.74 ± 0.73 h⋅mg/L), as normalized to a 100 mg dose, were significantly lower compared with those of non-obese patients. No significant differences were observed regarding the free plasma concentration, as determined by ultrafiltration, or the corresponding AUC8h (fAUC8h,plasma). Concentrations in interstitial fluid (ISF) of subcutaneous tissue were lower than the free plasma concentrations in both groups, and they were lower in obese compared to non-obese patients: the AUC8h in ISF (AUC8h,ISF) was 0.51 ± 0.22 h⋅mg/L in obese and 0.79 ± 0.23 h⋅mg/L in non-obese patients, resulting in a relative tissue drug exposure (AUC8h,ISF/fAUC8h,plasma) of 0.38 ± 0.19 and 0.63 ± 0.24, respectively. Conclusion: Following a single dose of tigecycline, concentrations in the ISF of subcutaneous adipose tissue are decreased in heavily obese subjects, calling for an increased loading dose. Eu clinical trials registration number: EudraCT No. 2012-004383-22.
Multiobjective strict dissipativity via a weighted sum approach
Creators: name: Grüne, Lars
name: Krügel, Lisa
name: Müller, Matthias A.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics

description: We consider nonlinear model predictive control (MPC) with multiple competing cost functions. This leads to the formulation of multiobjective optimal control problems (MO OCPs). Since the design of MPC algorithms for directly solving multiobjective problems is rather complicated, particularly if terminal conditions shall be avoided, we use an indirect approach via a weighted sum formulation for solving these MO OCPs. This way, for each set of weights we obtain an optimal control problem with a single objective. In economic MPC it is known that strict dissipativity is the key assumption for concluding performance and stability results. We thus investigate under which conditions a convex combination of strictly dissipative stage costs is strictly dissipative again. We first give conditions for problems with linear dynamics and then move on to consider fully nonlinear optimal control problems. We derive both necessary and sufficient conditions on the individual cost functions and on the weights to conclude strict dissipativity and illustrate our findings with numerical examples.
Ground state pairing correlations in the $S_4$ symmetric microscopic model for iron-based superconductors
Creators: name: Wu, Yang
name: Liu, Guangkun
name: Ma, Tianxing
Publisher: name: arXiv
Year: 2013
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We present the ground state pairing correlations in the $S_4$ symmetric microscopic model for iron-based superconductors, computed with the constrained-path Monte Carlo method. For various electron fillings and interaction strengths, we find that the $s_{xy}$ pairing dominates over other pairing correlations and is positive when the pair separation exceeds several lattice constants, whatever for iron pnictides and iron chlcogenides. These ground state properties, especially the long range part pairing correlations re-confirm the previous finite temperature results published in Phys. Rev. Lett. 110, 107002(2013). We further our study by including the nearest neighbour interaction $V$ and it is found that the $s_{xy}$ pairing correlation is slightly suppressed by the increasing $V$.
description: 5 pages, 5 figures. arXiv admin note: text overlap with arXiv:1202.5881 by other authors
"Dorobek na zawsze" – antyczna odpowiedź na stare i nowe pytania ["A Possession For Ever" – An Ancient Answer to Old and New Questions]
Creators: name: Marciniak, Katarzyna
Publisher: name: Zenodo
Year: 2020
Subjects: edukacja
Our Mythical Childhood
ERC
kultura antyczna
recepcja
greckie tragedie
pandemia
koronawirus
zdalne nauczanie
Universytet
szkoła średnia
Edyp
Sofokles
Tukidydes
education
classics
classical reception
Greek tragedy
pandemic
coronavirus
distance learning
University
high school
Oedipus
Sophocles
Thucydides

description: Artykuł dotyczy wyzwań stojących przed edukacją na poziomie szkoły średniej i Uniwersytetu w sytuacji pandemii spowodowanej przez koronawirusa. W tekście przedstawiono jako case study projekt Our Mythical Childhood realizowany w ramach grantu ERC (681202). Uczestnicy projektu angażują się w liczne inicjatywy edukacyjne związane z badaniami naukowymi. The paper regards the challenges of education on the high-school and University level in the circumstances of the coronavirus pandemic. The case study presented in the text is the ERC-funded project Our Mythical Childhood (681202), whose participants are involved in numerous educational activities linked to the project's research.
description: availabale at http://omc.obta.al.uw.edu.pl/publications and http://www.ipwc.pw.edu.pl/wydawnictwa/zeszyty2020.php
When Anti-dumping Meets Antitrust: Brazil’s Innovative Experience Analyzing Public Interest in Commercial Defense Investigations
Creators: name: Cuiabano, Simone
name: Cuiabano, Simone
Publisher: name: Unknown
Year: 2020
Subjects: subject: International Relations/Trade
subject: antitrust
subject: trade defense
subject: competition law

description: This article discusses the issue of applying trade defense measures in oligopolized or monopolized markets, addressing the recent integration of the trade defense investigation body with the public interest area in Brazil. By analyzing two recent cases of plasterboard and grinding bodies, I raise the possibility of complementing antitrust analysis with trade defense. I conclude that it is necessary to have greater convergence between investigations of unfair trade practices and concerns about maintaining a competitively healthy market. I also argue for the importance of institutional restructuring of the new system of trade defense and public interest by separating damage investigation and causal link analysis, thus creating an exempt court that allows further discussion regarding antitrust and anti-dumping cases.
Schmid, J. J., I.U.L
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1826

description: Ort: Basel
description: Verzeichnung=Description=Inventaire 05.07.2020 Automatisiert nach HAN-Import
description: Verzeichnung=Description=Inventaire ISAD(G) / HAN Katalogisierungsregeln für Archivbestände Detailliert
Perturbative Steady States of Completely Positive Quantum Master Equations
Creators: name: Lee, Jae Sung
name: Yeo, Joonhyun
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The Lindblad form guarantees complete positivity of a Markovian quantum master equation (QME). However, its microscopic derivation for a quantum system weakly interacting with a thermal bath requires several approximations, which may result in inaccuracies in the QME. Recently, various Lindbladian QMEs were derived without resorting to the secular approximation from the Redfield equation which does not guarantee the complete positivity. Here we explicitly calculate, in a perturbative manner, the equilibrium steady states of these Lindbladian QMEs. We compare the results with the steady state of the Redfield equation obtained from an analytic continuation method, which coincides with the so-called mean force Gibbs (MFG) state. The MFG state is obtained by integrating out the bath degrees of freedom for the Gibbs state of the total Hamiltonian. We explicitly show that the steady states of the Lindbladian QMEs are different from the MFG state. Our results indicate that manipulations of the Redfield equation needed to enforce complete positivity of a QME drives its steady state away from the MFG state. We also find that, in the high-temperature regime, both the steady states of the Lindbladian QMEs and MFG state reduce to the same Gibbs state of a system Hamiltonian under certain conditions.
description: 14 pages, 3 figures, 1 table
Development of Strategies to Enable biomimetic Stimulation of Retinal Ganglion Cells (RGC)
Creators: name: Ramkumar, Pradeep Kumar
Publisher: name: University of Illinois at Chicago
Year: 2023
Subjects: Uncategorized

description: The current work is motivated by the need to treat incurable vision loss due to photoreceptor degenerative diseases. Photoreceptors are specialized neurons in the retina that convert light into electrochemical signals. These signals are processed by another class of neurons called the retinal ganglion cells which remain unaffected by the disease progression. We are motivated by the need for an implantable device to chemically stimulate retinal ganglion cells to treat these incurable photoreceptor degenerative diseases. This form of treatment is based on the replication of the functionality of the photoreceptors in the natural vision process and is therefore considered biomimetic. The materials used to fabricate these devices must either be known biocompatible materials or should be tested for their biocompatibility. The conceptualized implantable device is an opto-fluidic artificial retinal chemical synapse (ARCS) chip that releases precise qualities of a neurotransmitter called glutamate to stimulate the retinal ganglion cells and restore vision. The aim of this thesis is the identification and development of different strategies to enable the ARCS chip. The organization and the fulfilment of goals of this thesis is guided through the research contributions to three specific aims listed below: 1. Improving the yield of 3-D SU-8 fabrication methods. 2. Development of non-destructive metrological techniques to characterize surface and subsurface microfeatures of polymer-based microstructures. 3. Development of a multipore independently addressable biocompatible electroosmotic micropump
Effect of Different Distance Measures on the Performance of K-Means Algorithm: An Experimental Study in Matlab
Creators: name: Bora, Mr. Dibya Jyoti
name: Gupta, Dr. Anil Kumar
Publisher: name: arXiv
Year: 2014
Subjects: subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: K-means algorithm is a very popular clustering algorithm which is famous for its simplicity. Distance measure plays a very important rule on the performance of this algorithm. We have different distance measure techniques available. But choosing a proper technique for distance calculation is totally dependent on the type of the data that we are going to cluster. In this paper an experimental study is done in Matlab to cluster the iris and wine data sets with different distance measures and thereby observing the variation of the performances shown.
description: 6 pages, 11 figures, Clustering, K Means
Two-Hop Routing with Traffic-Differentiation for QoS Guarantee in Wireless Sensor Networks
Creators: name: Prakash, T Shiva
name: Raja, K B
name: Venugopal, K R
name: Iyengar, S S
name: Patnaik, L M
Publisher: name: arXiv
Year: 2014
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: This paper proposes a Traffic-Differentiated Two-Hop Routing protocol for Quality of Service (QoS) in Wireless Sensor Networks (WSNs). It targets WSN applications having different types of data traffic with several priorities. The protocol achieves to increase Packet Reception Ratio (PRR) and reduce end-to-end delay while considering multi-queue priority policy, two-hop neighborhood information, link reliability and power efficiency. The protocol is modular and utilizes effective methods for estimating the link metrics. Numerical results show that the proposed protocol is a feasible solution to addresses QoS service differenti- ation for traffic with different priorities.
description: 13 pages
Speyr-Ryhiner, Theodor, de
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1826

description: Ort: Basel
description: Verzeichnung=Description=Inventaire 05.07.2020 Automatisiert nach HAN-Import
description: Verzeichnung=Description=Inventaire ISAD(G) / HAN Katalogisierungsregeln für Archivbestände Detailliert
Progenitor constraints on the Type-Ia supernova SN2011fe from pre-explosion Hubble Space Telescope HeII narrow-band observations
Creators: name: Graur, Or
name: Maoz, Dan
name: Shara, Michael M.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present Hubble Space Telescope (HST) imaging observations of the site of the Type-Ia supernova SN2011fe in the nearby galaxy M101, obtained about one year prior to the event, in a narrow band centred on the HeII 4686 Å emission line. In a "single-degenerate" progenitor scenario, the hard photon flux from an accreting white dwarf (WD), burning hydrogen on its surface over $\sim1$ Myr should, in principle, create a HeIII Strömgren sphere or shell surrounding the WD. Depending on the WD luminosity, the interstellar density, and the velocity of an outflow from the WD, the HeIII region could appear unresolved, extended, or as a ring, with a range of possible surface brightnesses. We find no trace of HeII 4686 Å line emission in the HST data. Using simulations, we set $2σ$ upper limits on the HeII 4686 Å luminosity of $L_{\rm HeII} < 3.4 \times 10^{34}$ erg s$^{-1}$ for a point source, corresponding to an emission region of radius $r < 1.8$ pc. The upper limit for an extended source is $L_{\rm HeII} < 1.7 \times 10^{35}$ erg s$^{-1}$, corresponding to an extended region with $r\sim11$ pc. The largest detectable shell, given an interstellar-medium density of 1 cm$^{-3}$, has a radius of $\sim6$ pc. Our results argue against the presence, within the $\sim10^5$ yr prior to the explosion, of a supersoft X-ray source of luminosity $L_{\rm bol} \ge 3 \times 10^{37}$ erg s$^{-1}$, or of a super-Eddington accreting WD that produces an outflowing wind capable of producing cavities with radii of 2-6 pc.
description: Accepted by MNRAS Letters; revised version following referee report and readers' comments
Thermal spin dynamics of Kitaev magnets $-$ scattering continua and magnetic field induced phases within a stochastic semiclassical approach
Creators: name: Franke, Oliver
name: Călugăru, Dumitru
name: Nunnenkamp, Andreas
name: Knolle, Johannes
Publisher: name: arXiv
Year: 2022
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The honeycomb magnet $α-$RuCl$_3$ is a prime candidate material for realizing the Kitaev quantum spin liquid (QSL), but it shows long-range magnetic order at low temperature. Nevertheless, its broad inelastic neutron scattering (INS) response at finite frequency has been interpreted as that of a 'proximate QSL'. A moderate in-plane magnetic field indeed melts the residual zigzag order, giving rise to peculiar intermediate field phases before the high-field polarized state. In INS measurements the low-frequency spin waves disappear, leading to a broad scattering continuum in the field-induced intermediate regime, whose nature is currently under debate. Here, we study the magnetic field dependent spin dynamics of the $K-Γ-Γ'-$model within a stochastic semiclassical treatment, which incorporates the effect of finite-temperature fluctuations. At temperatures relevant for INS experiments, we show how the excitations of the zigzag phase broaden and that the different intermediate phases all show a similar continuum response. We discuss the implications of our results for experiments and highlight the importance of distinguishing finite temperature fluctuations from genuine quantum fractionalization signatures in frustrated magnets.
description: 8 + 3 pages. 5 + 4 figures; minor changes and updated figure format
A 4-Planet System Orbiting the K0V Star HD 141399
Creators: name: Vogt, Steven S.
name: Butler, R. Paul
name: Rivera, Eugenio J.
name: Kibrick, Robert
name: Burt, Jennifer
name: Hanson, Russell
name: Meschiari, Stefano
name: Henry, Gregory W.
name: Laughlin, Gregory
Publisher: name: arXiv
Year: 2014
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We present precision radial velocity (RV) data sets from Keck-HIRES and from Lick Observatory's new Automated Planet Finder Telescope and Levy Spectrometer on Mt. Hamilton that reveal a multiple-planet system orbiting the nearby, slightly evolved, K-type star HD 141399. Our 91 observations over 10.5 years suggest the presence of four planets with orbital periods of 94.35, 202.08, 1070.35, and 3717.35 days and minimum masses of 0.46, 1.36, 1.22, and 0.69 Jupiter masses respectively. The orbital eccentricities of the three inner planets are small, and the phase curves are well sampled. The inner two planets lie just outside the 2:1 resonance, suggesting that the system may have experienced dissipative evolution during the protoplanetary disk phase. The fourth companion is a Jupiter-like planet with a Jupiter-like orbital period. Its orbital eccentricity is consistent with zero, but more data will be required for an accurate eccentricity determination.
description: 11 pages, 13 figures, To appear in the Astrophysical Journal
Violation of the Pauli-Clogston limit in a heavy Fermion superconductor CeRh$_2$As$_2$ --Duality of itinerant and localized 4f electrons--
Creators: name: Machida, Kazushige
Publisher: name: arXiv
Year: 2022
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We theoretically propose a mechanism to understand the violation of the Pauli-Clogston limit for the upper critical field H$_{\rm c2}$ observed in the Ce bearing heavy Fermion material CeRh$_2$As$_2$ from the view point of spin singlet pairing. It is based on a duality concept, the dual simultaneous aspects of an electron: the itinerant part and localized part of quasi-particles (QPs) originated from the 4f electrons of the Ce atoms. While the itinerant QPs directly participate in forming the Cooper pairs, the localized QPs exert the internal field so as to oppose the applied field through the antiferromagnetic exchange interaction between them. This is inherent in the dense Kondo lattice system in general. We argue that this mechanism can be applied not only to the locally noncentrosymmetric material CeRh$_2$As$_2$, but also to globally inversion symmetry broken Ce-based materials such as CePt$_3$Si. Moreover, we point out that it also works for strongly Pauli limit violated spin triplet pairing systems, such as UTe$_2$.
description: 8 pages, 3 figures
Mass-scaling replica-exchange molecular dynamics optimizes computational resources with simpler algorithm
Creators: name: Nagai, Tetsuro
name: Takahashi, Takuya
Publisher: name: arXiv
Year: 2014
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: We develop a novel method of replica-exchange molecular dynamics (REMD) simulation, mass-scaling REMD (MSREMD) method, which improves trajectory accuracy at high temperatures, and thereby contributes to numerical stability. In addition, the MSREMD method can also simplify a replica-exchange routine by eliminating velocity scaling. As a pilot system, a Lennard-Jones fluid is simulated with the new method. The results show that the MSREMD method improves the trajectory accuracy at high temperatures compared with the conventional REMD method. We analytically demonstrate that the MSREMD simulations can reproduce completely the same trajectories of the conventional REMD ones with shorter time steps at high temperatures in case of the Nosé-Hoover thermostats. Accordingly, we can easily compare the computational costs of the REMD and MSREMD simulations. We conclude that the MSREMD method decreases the instability and optimizes the computational resources with simpler algorithm under the constant trajectory accuracy at all temperatures.
description: 9 pages, 5 figures
Data and code for "Adverse impact of terrain steepness on thermally-driven initiation of orographic convection"
Creators: name: Göbel, Matthias
Publisher: name: Zenodo
Year: 2023

description: This upload contains the data and code used to run, analyze, and visualize the idealized WRF simulations (using WRFlux v1.3.2) of the publication "Adverse impact of terrain steepness on thermally-driven initiation of orographic convection" submitted to "Weather and Climate Dynamics".
Relic density calculations beyond tree-level, exact calculations versus effective couplings: the ZZ final state
Creators: name: Boudjema, F.
name: La Rochelle, G. Drieu
name: Mariano, A.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The inferred value of the relic density from cosmological observations has reached a precision that is akin to that of the LEP precision measurements. This level of precision calls for the evaluation of the annihilation cross sections of dark matter that goes beyond tree-level calculations as currently implemented in all codes for the computation of the relic density. In supersymmetry radiative corrections are known to be large and thus must be implemented. Full one-loop radiative corrections for many annihilation processes have been performed. It is important to investigate whether the bulk of these corrections can be parameterised through an improved Born approximation that can be implemented as a selection of form factors to a tree-level code. This paper is a second in a series that addresses this issue. After having provided these form factors for the annihilation of the neutralinos into fermions, which cover the case of a bino-like LSP (Lightest Supersymmetric Particle), we turn our attention here to a higgsino-like dark matter candidate through its annihilation into $ZZ$. We also investigate the cases of a mixed LSP. In all cases we compare the performance of the form factor approach with the result of a full one-loop correction. We also study the issue of the renormalisation scheme dependence. An illustration of the phenomenon of non decoupling of the heavy sfermions that takes place for the annihilation of the lightest neutralino into $ZZ$ is also presented.
description: 20p
A polynomial-time approximation to a minimum dominating set in a graph
Creators: name: Hernandez, Frank
name: Parra, Ernesto
name: Sigarreta, Jose Maria
name: Vakhania, Nodari
Publisher: name: arXiv
Year: 2022
Subjects: subject: Discrete Mathematics (cs.DM)
subject: FOS: Computer and information sciences

description: A {\em dominating set} of a graph $G=(V,E)$ is a subset of vertices $S\subseteq V$ such that every vertex $v\in V\setminus S$ has at least one neighbor in $S$. Finding a dominating set with the minimum cardinality in a connected graph $G=(V,E)$ is known to be NP-hard. A polynomial-time approximation algorithm for this problem, described here, works in two stages. At the first stage a dominant set is generated by a greedy algorithm, and at the second stage this dominating set is purified (reduced). The reduction is achieved by the analysis of the flowchart of the algorithm of the first stage and a special kind of clustering of the dominating set generated at the first stage. The clustering of the dominating set naturally leads to a special kind of a spanning forest of graph $G$, which serves as a basis for the second purification stage. We expose some types of graphs for which the algorithm of the first stage already delivers an optimal solution and derive sufficient conditions when the overall algorithm constructs an optimal solution. We give three alternative approximation ratios for the algorithm of the first stage, two of which are expressed in terms of solely invariant problem instance parameters, and we also give one additional approximation ratio for the overall two-stage algorithm. The greedy algorithm of the first stage turned out to be essentially the same as the earlier known state-of-the-art algorithms for the set cover and dominating set problem Chvátal \cite{chvatal} and Parekh \cite{parekh}. The second purification stage results in a significant reduction of the dominant set created at the first stage, in practice. The practical behavior of both stages was verified for randomly generated problem instances. The computational experiments emphasize the gap between a solution of Stage 1 and a solution of Stage 2.
Cryptalaus eryx Cate 2007
Creators: name: Kotru, Akash
name: Chandran, Nithya
name: Dubey, Anil Kumar
name: Prosvirov, Alexander S.
Publisher: name: Zenodo
Year: 2025
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Elateridae
Cryptalaus
Cryptalaus eryx

description: Cryptalaus eryx (Candèze, 1874)
Alaus eryx Candèze, 1874: 140.
Cryptalaus eryx (Candèze) Cate, 2007: 107.
Type depository. Syntype (BMNH).
Type locality. Laos.
Distribution. India: Assam, Sikkim, West Bengal (Cate, 2007). Elsewhere: Myanmar (Burma), Nepal, Oriental Region (Cate, 2007).
Literature. Candèze (1974: 139): original description; Cate (2007: 107): combination.
description: Published as part of Kotru, Akash, Chandran, Nithya, Dubey, Anil Kumar & Prosvirov, Alexander S., 2025, A catalogue of Indian Agrypninae Candèze, 1857 (Coleoptera: Elateridae), pp. 1-66 in Zootaxa 5614 (1) on page 38, DOI: 10.11646/zootaxa.5614.1.1, http://zenodo.org/record/15217075
Merging of Landau levels in a strongly-interacting two-dimensional electron system in silicon
Creators: name: Shashkin, A. A.
name: Dolgopolov, V. T.
name: Clark, J. W.
name: Shaginyan, V. R.
name: Zverev, M. V.
name: Khodel, V. A.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We show that the merging of the spin- and valley-split Landau levels at the chemical potential is an intrinsic property of a strongly-interacting two-dimensional electron system in silicon. Evidence for the level merging is given by available experimental data.
Steiner-Rieter, D
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1826

description: Ort: Bergamo
description: Verzeichnung=Description=Inventaire 05.07.2020 Automatisiert nach HAN-Import
description: Verzeichnung=Description=Inventaire ISAD(G) / HAN Katalogisierungsregeln für Archivbestände Detailliert
Schrepffer & Sohn
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1826

description: Ort: Leipzig
description: Verzeichnung=Description=Inventaire 05.07.2020 Automatisiert nach HAN-Import
description: Verzeichnung=Description=Inventaire ISAD(G) / HAN Katalogisierungsregeln für Archivbestände Detailliert
Stampa, Jean, Fils
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1826

description: Ort: Bergamo
description: Verzeichnung=Description=Inventaire 05.07.2020 Automatisiert nach HAN-Import
description: Verzeichnung=Description=Inventaire ISAD(G) / HAN Katalogisierungsregeln für Archivbestände Detailliert
Mathematical Model of Semantic Look - An Efficient Context Driven Search Engine
Creators: name: G, Leena Giri
name: L, Srikanth P
name: Manjula, S H
name: Venugopal, K R
name: Patnaik, L M
Publisher: name: arXiv
Year: 2014
Subjects: subject: Information Retrieval (cs.IR)
subject: FOS: Computer and information sciences

description: The WorldWideWeb (WWW) is a huge conservatory of web pages. Search Engines are key applications that fetch web pages for the user query. In the current generation web architecture, search engines treat keywords provided by the user as isolated keywords without considering the context of the user query. This results in a lot of unrelated pages or links being displayed to the user. Semantic Web is based on the current web with a revised framework to display a more precise result set as response to a user query. The current web pages need to be annotated by finding relevant meta data to be added to each of them, so that they become useful to Semantic Web search engines. Semantic Look explores the context of user query by processing the Semantic information recorded in the web pages. It is compared with an existing algorithm called OntoLook and it is shown that Semantic Look is a better optimized search engine by being more than twice as fast as OntoLook.
description: 12 pages
Stieglitz & Co
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1826

description: Ort: St. Petersburg
description: Verzeichnung=Description=Inventaire 05.07.2020 Automatisiert nach HAN-Import
description: Verzeichnung=Description=Inventaire ISAD(G) / HAN Katalogisierungsregeln für Archivbestände Detailliert
Data and code for "Adverse impact of terrain steepness on thermally-driven initiation of orographic convection"
Creators: name: Göbel, Matthias
Publisher: name: Zenodo
Year: 2023

description: This upload contains the data and code used to run, analyze, and visualize the idealized WRF simulations (using WRFlux v1.6.0) of the publication "Adverse impact of terrain steepness on thermally-driven initiation of orographic convection" submitted to "Weather and Climate Dynamics".