cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Integer Quantum Hall Effect of Interacting Electrons in Graphene
Creators: name: Yan, Xin-Zhong
name: Ting, C. S.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: By taking into account the charge and spin orderings and the exchange interactions between all the Landau levels, we investigate the integer quantum Hall effect of electrons in graphene using the mean-field theory. At the fillings $ν= 4n+2$ with $n = 0, 1, \cdots$, the system is in the high-symmetry state with the Landau levels four-fold degenerated. We show that with doping the degenerated lowest empty levels can be sequentially filled one level by one level, the filled level is lower than the empty ones because of the symmetry breaking. This result explains the step $Δν$ = 1 in the integer quantized Hall conductivity of the experimental observations. We also present in the supplemental material a high efficient method for dealing with huge number of the Coulomb couplings between all the levels.
description: 10 pages, 6 figures
Amtliche Mitteilungen der Universität Dortmund Nr. 06
Creators: name: (:Unkn) Unknown
Publisher: name: Universität Dortmund
Year: 1971
Subjects: subject: 080

description: Wahlordnung zum Satzungskonvent
description: Zulassungsbeschränkung im Fach Chemietechnik
description: Amtliche Mitteilungen der Universität Dortmund ; 6
Improved Access to Organo-Soluble Di- and Tetrafluoridochlorate(I)/(III) Salts
Creators: name: Pröhm, Patrick
name: Schmid, J. R.
name: Sonnenberg, K.
name: Voßnacker, P.
name: Steinhauer, S.
name: Schattenberg, Caspar Jonas
name: Müller, Robert
name: Kaupp, Martin
name: Riedel, Sebastian
Publisher: name: Technische Universität Berlin
Year: 2020
Subjects: subject: 540 Chemie und zugeordnete Wissenschaften
subject: chlorine fluorides
subject: fluorination reagents
subject: strong oxidizers

description: A facile one-pot gram-scale synthesis of tetraalkylammonium tetrafluoridochlorate(III) [cat][ClF4] ([cat]=[NEt3Me]+, [NEt4]+) is described. An acetonitrile solution of the corresponding alkylammonium chloride salt is fluorinated with diluted fluorine at low temperatures. The reaction proceeds via the [ClF2]− anion which is structurally characterized for the first time. The potential application of [ClF4]− salts as fluorinating agents is evaluated by the reaction with diphenyl disulfide, Ph2S2, to pentafluorosulfanyl benzene, PhSF5. The CN moieties in acetonitrile and [B(CN)4]− are transferred in CF3 groups. Exposure of carbon monoxide, CO, leads to the formation of carbonyl fluoride, COF2, and elemental gold is dissolved under the formation of tetrafluoridoaurate [AuF4]−.
Exact solutions for the biadjoint scalar field
Creators: name: White, Chris D.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Biadjoint scalar theories are novel field theories that arise in the study of non-abelian gauge and gravity amplitudes. In this short paper, we present exact nonperturbative solutions of the field equations, and compare their properties with monopole-like solutions in non-abelian gauge theory. Our results may pave the way for nonperturbative studies of the double copy.
description: 11 pages. Minor corrections to formulae and text, to match journal version
The Relationship between Training and Employee Performance: The Case of Five Star Hotels in Addis Ababa
Creators: name: Habte, Eskinder
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2016

description: This study intended to investigate the relationship between training and employee performance in the five star hotels in Addis Ababa. The specific objectives were to investigate whether training content, training delivery mode, and training delivery frequency affects the performance of the employees. The study is explanatory and quantitative research method was employed to undertake the study. Questionnaire was the instrument used to gather data from primary sources. The number of sample respondents was 289 from 1543 population. The study made use of descriptive and inferential statistics to analyze the data. The study found out that the three variables of training investigated were keys in determining employee performance. Three Hypotheses are developed to see the relationship of all the independent variables with the Employee Performance. The finding reveals that the relationship between Training Practice, Delivery Mode, and Delivery Frequency and employee performance is positive and significant. The research has confirmed that training has a relationship with employee performance. Keywords: Training, Employee Performance, On the Job Training, Off the job Training, Training Practice, Delivery Mode, Delivery Frequency
title: Das visuelle Funktionsprofil
title: Konzeption eines Verfahrens zur Ermittlung kindlicher Sehbedingungen auf Basis der Internationalen Klassifikation der Funktionsfähigkeit, Behinderung und Gesundheit bei Kindern und Jugendlichen (ICF-CY)
titleType: AlternativeTitle
Creators: name: Petz, Verena
Publisher: name: Technische Universität Dortmund
Year: 2013
Subjects: subject: Cerebrale Sehschädigung
subject: CVI
subject: Sehfunktionen
subject: WHO
subject: 360
subject: 370
subject: ICF-CY
subject: Sehbehinderung
subject: Sehstörung
subject: Weltgesundheitsorganisation

description: Sehen ist als ein inneres Geschehen einer Person im aktiven Kontakt mit ihrer Umwelt vorstellbar. Es kann von außen nur eingeschränkt nachvollzogen werden. Für das Erlernen sind Licht, Bewegung und eine Umwelt mit vielfältigen Unterscheidungsmöglichkeiten erforderlich – es entwickelt sich in Abhängigkeit von vielen Faktoren. Dieser Lernprozess setzt nach der Geburt ein und ist weitgehend selbstregulativ. Das Sehen kann einem Kind somit nicht vermittelt werden. Da Sehen und visuelle Wahrnehmung nicht direkt beobachtbar sind, gilt dies auch für Veränderungen des Sehens bzw. Sehbeeinträchtigung. Diese zu verstehen, ist so komplex wie bedeutsam, weil sie die meisten Erfahrungs- und Lernprozesse von Geburt an verlangsamen oder stören können. Durch die Anwendung des im Rahmen der Dissertation theoretisch fundierten Visuellen Funktionsprofils (VFP) wird ein Überblick über die individuelle visuelle Funktionsfähigkeit eines Kindes erlangt. Dieser am Individuum und an der Funktionsfähigkeit anknüpfende Zugang zur Sehüberprüfung entspricht den Empfehlungen der Weltgesundheitsorganisation (WHO). Eine individuell ausgerichtete Sehüberprüfung im Kindesalter hat zum Ziel, visuelle Entwicklungsthemen zu identifizieren und gefundene Einzelergebnisse einer Sehüberprüfung in Beziehung zueinander zu setzen, um weiterführende Fragestellungen zu entwickeln. Dieses Prinzip der Wechselwirkung verschiedenster Faktoren bei der Beurteilung des Sehens spiegelt sich in dem für die Konstruktion des VFP gewählten Grundmodell wider, das maßgeblich der Internationalen Klassifikation der Funktionsfähigkeit, Behinderung und Gesundheit bei Kindern und Jugendlichen (ICF-CY) (WHO, 2011) entspricht.
Additional file 7 of Promoting health and social equity through family navigation to prevention and early intervention services: a proof of concept study
Creators: name: Waid, Jeffrey
name: Tomfohrde, Olivia
name: Kutzler, Courtney
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Supplementary Material 7
Collisional excitation of methyl (iso)cyanide by He atoms: rate coefficients and isomerism effects
Creators: name: Khalifa, M. Ben
name: Dagdigian, P. J.
name: Loreau, J.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Among all closed-shell species observed in molecular clouds, molecules with C$_{3v}$ symmetry play a crucial role, as their rotational spectroscopy allows them to behave as a gas thermometer. In the interstellar medium, methyl cyanide (CH$_3$CN) is the second most abundant of those (after ammonia, NH$_3$). Its isomer, methyl isocyanide (CH$_3$NC) is less abundant but has been detected in many astrophysical sources. In order to assess their absolute and relative abundances, it is essential to understand their collisional excitation properties. This paper reports the calculation of rate coefficients for rotational excitation of CH$_3$CN and CH$_3$NC molecules with He atoms, from low (5 K) to moderate (100 K) temperatures. We include the first 74 and 66 rotational states of both $para$ and $ortho$ symmetries of CH$_3$CN and CH$_3$NC, respectively. A propensity for $Δj=2$ transitions is observed in the case of CH$_3$CN-He collisions, whereas in the case of CH$_3$NC-He a propensity for $Δj=1$ is observed for transitions involving low values of $j$ and at low temperatures, while a propensity for $Δj=2$ is observed for higher values of $j$ and at high temperatures. A comparison of rate coefficients shows differences up to a factor of 3, depending on temperature and on the $ortho$/$para$ symmetries for dominant transitions. This confirms the importance of having specific collisional data for each isomer. We also examined the effect of these new rates on the CH$_3$CN and CH$_3$NC excitation in molecular clouds by performing radiative transfer calculations of the excitation and brightness temperatures for several detected lines.
description: 9p
Precise Laplace asymptotics for singular stochastic PDEs: The case of 2D gPAM
Creators: name: Friz, Peter K.
name: Klose, Tom
Publisher: name: Technische Universität Berlin
Year: 2022
Subjects: subject: 519 Wahrscheinlichkeiten, angewandte Mathematik
subject: 515 Analysis
subject: regularity structures
subject: laplace asymptotics
subject: large deviations
subject: singular stochastic PDEs

description: We implement a Laplace method for the renormalised solution to the generalised 2D Parabolic Anderson Model (gPAM) driven by a small spatial white noise. Our work rests upon Hairer's theory of regularity structures which allows to generalise classical ideas of Azencott and Ben Arous on path space as well as Aida and Inahama and Kawabi on rough path space to the space of models. The technical cornerstone of our argument is a Taylor expansion of the solution in the noise intensity parameter: We prove precise bounds for its terms and the remainder and use them to estimate asymptotically irrevelant terms to arbitrary order. While most of our arguments are not specific to gPAM, we also outline how to adapt those that are.
Sedative and hypnotic effects of Iranian traditional medicinal herbs used for treatment of insomnia
Creators: name: Andalib, Sasan
name: Naeini, Azadeh Motavallian
name: Vaseghi, Ali
name: Vaseghi, Golnaz
Publisher: name: Technische Universität Dortmund
Year: 2011
Subjects: subject: hypnotic effect
subject: insomnia
subject: Iranian medicinal herbs
subject: Iranian traditional medicine
subject: sedative effect
subject: 610

description: For tens of centuries, plants have been highly valued and regularly used as medicine amongst the masses. Insomnia, a loss of sleep, is mostly treated by synthetic sleeping tablets these days. However, questions have been raised about the safety of prolonged use of artificial sedatives due to their deleterious side effects such as physical dependence. In recent years, there has been an increasing propensity to preclude insomnia by herbal medicines throughout the world. Many herbs have a lengthy background in terms of insomnia treatment in Iran. This paper gives an account of previously published research on sedative and hypnotic effects of medicinal herbs used for treatment of insomnia in Iranian traditional medicine.
description: EXCLI Journal ; Vol. 10, 2011
Electrical switching of ferro-rotational order in nano-thick 1T-TaS$_2$ crystals
Creators: name: Liu, Gan
name: Qiu, Tianyu
name: He, Kuanyu
name: Liu, Yizhou
name: Lin, Dongjing
name: Ma, Zhen
name: Huang, Zhentao
name: Tang, Wenna
name: Xu, Jie
name: Watanabe, Kenji
name: Taniguchi, Takashi
name: Gao, Libo
name: Wen, Jinsheng
name: Liu, Jun-Ming
name: Yan, Binghai
name: Xi, Xiaoxiang
Publisher: name: arXiv
Year: 2022
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Hysteretic switching of domain states is a salient character of all ferroic materials and the foundation for their multifunctional applications. Ferro-rotational order is emerging as a new type of ferroic order featuring structural rotations, but its controlled switching remains elusive due to its invariance under both time reversal and spatial inversion. Here, we demonstrate electrical switching of ferro-rotational domain states in nanometer-thick 1T-TaS$_2$ crystals in its charge-density-wave phases. Cooling from the high-symmetry phase to the ferro-rotational phase under an external electric field induces domain state switching and domain wall formation, realized in a simple two-terminal configuration using a volt-scale voltage. Although the electric field does not couple with the order due to symmetry mismatch, it drives domain wall propagation to give rise to reversible, durable, and nonvolatile isothermal state switching at room temperature. These results pave the path for manipulation of the ferro-rotational order and its nanoelectronic applications.
The Effect Of Celebrity Endorsement In Tv Ads On Consumers Buying Decision: The Case Of Heineken Ethiopia
Creators: name: Kefyalew, Haymanote
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2019

description: Today marketers choose to utilize celebrities as endorsers in their marketing campaigns to survive and moreover to reach at excellence in consumer buying decision. Celebrity endorsement is an advertising strategy whereby companies use people of public recognition as spokespersons for their products. This study was undertaken to investigate the effect of celebrity endorsement in TV ads on consumer buying decision: The case of Heineken Ethiopia. It followed a deductive form of research approach and the research design was explanatory and it depends on quantitative data. Questionnaires were used to collect primary data by using a self-administered data collection system from 384 respondents (consumers of Heineken beer in Addis Ababa), out of which 353 valid questionnaires were collected and analyzed. These respondents were selected by using a non probability convenience sampling technique, which is Judgment Sampling method. The data were analyzed using descriptive statistics and inferential statistics, correlation and multiple regressions. The finding revealed that there are positive and significant relationships between celebrity attributes, similarity, likability, celebrity/product matchup and consumer buying decision of Heineken beer shown in TV Ads. Whereas, celebrity's trustworthiness, expertise and familiarity has positive but insignificant relationships with consumer's buying decision. Consumers of low involvement products focused on the peripheral cues of the celebrities of the ads. And the minimized effect of pre-established thoughts or feelings about unfamiliar celebrities and also consumer who were in the "unfamiliarity with the celebrity" condition spent more time examining the ad, had significantly more favorable attitudes toward the ad and brand, and had more buying decision. The correlation analysis result showed that there were 66.6 % weak and 33.3 % moderate correlation between the independent and dependent variable. And also the regression analysis of Unstandardized Coefficients of the B value showed there was small change on the dependent variable due to the change in each independent variable. So the result of the study suggests that celebrity endorsement in TV ads could not be recommendable for low risk associated consuming products like beer.
A Back-End-Of-Line Compatible, Ferroelectric Analog Non-Volatile Memory
Creators: name: Bégon-Lours, Laura
name: Halter, Mattia
name: Pineda, Diana Dávila
name: Bragaglia, Valeria
name: Popoff, Youri
name: La Porta, Antonio
name: Jubin, Daniel
name: Fompeyrine, Jean
name: Offrein, Bert Jan
Publisher: name: arXiv
Year: 2023
Subjects: subject: Hardware Architecture (cs.AR)
subject: FOS: Computer and information sciences

description: A Ferroelectric Analog Non-Volatile Memory based on a WOx electrode and ferroelectric HfZrO4 layer is fabricated at a low thermal budget (~375C), enabling BEOL processes and CMOS integration. The devices show suitable properties for integration in crossbar arrays and neural network inference: analog potentiation/depression with constant field or constant pulse width schemes, cycle to cycle and device to device variation <10%, ON/OFF ratio up to 10 and good linearity. The physical mechanisms behind the resistive switching and conduction mechanisms are discussed.
description: 2021 IEEE International Memory Workshop (IMW)
$B_sπ$--$B\bar{K}$ interactions in finite volume and the $X(5568)$
Creators: name: Lu, Jun-Xu
name: Ren, Xiu-Lei
name: Geng, Li-Sheng
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: The recent observation of $X(5568)$ by the D0 Collaboration has aroused a lot of interest both theoretically and experimentally. In the present work, we first point out that $X(5568)$ and $D_{s0}^*(2317)$ cannot simultaneously be of molecular nature, from the perspective of heavy-quark symmetry and chiral symmetry, based on a previous study of the lattice QCD scattering lengths of $DK$ and its coupled channels. Then we compute the discrete energy levels of the $B_sπ$ and $B\bar{K}$ system in finite volume using unitary chiral perturbation theory. The comparison with the latest lattice QCD simulation, which disfavors the existence of $X(5568)$, supports our picture where the $B_sπ$ and $B\bar{K}$ interactions are weak and $X(5568)$ cannot be a $B_sπ$ and $B\bar{K}$ molecular state. In addition, we show that the extended Weinberg compositeness condition also indicates that $X(5568)$ cannot be a molecular state made from $B_sπ$ and $B\bar{K}$ interactions.
description: 16 pages, 3 figures; version to appear in European Physical Journal C
Presynaptic inhibition rapidly stabilises recurrent excitation in the face of plasticity
Creators: name: Naumann, Laura Bella
name: Sprekeler, Henning
Publisher: name: Technische Universität Berlin
Year: 2020
Subjects: subject: 570 Biowissenschaften; Biologie
subject: 610 Medizin und Gesundheit
subject: inhibition
subject: neural circuits
subject: modelling
subject: modulation
subject: computational neuroscience
subject: Inhibition
subject: neuronale Schaltkreise
subject: Modellierung
subject: Modulation
subject: theoretische Neurowissenschaften

description: Hebbian plasticity, a mechanism believed to be the substrate of learning and memory, detects and further enhances correlated neural activity. Because this constitutes an unstable positive feedback loop, it requires additional homeostatic control. Computational work suggests that in recurrent networks, the homeostatic mechanisms observed in experiments are too slow to compensate instabilities arising from Hebbian plasticity and need to be complemented by rapid compensatory processes. We suggest presynaptic inhibition as a candidate that rapidly provides stability by compensating recurrent excitation induced by Hebbian changes. Presynaptic inhibition is mediated by presynaptic GABA receptors that effectively and reversibly attenuate transmitter release. Activation of these receptors can be triggered by excess network activity, hence providing a stabilising negative feedback loop that weakens recurrent interactions on sub-second timescales. We study the stabilising effect of presynaptic inhibition in recurrent networks, in which presynaptic inhibition is implemented as a multiplicative reduction of recurrent synaptic weights in response to increasing inhibitory activity. We show that networks with presynaptic inhibition display a gradual increase of firing rates with growing excitatory weights, in contrast to traditional excitatory-inhibitory networks. This alleviates the positive feedback loop between Hebbian plasticity and network activity and thereby allows homeostasis to act on timescales similar to those observed in experiments. Our results generalise to spiking networks with a biophysically more detailed implementation of the presynaptic inhibition mechanism. In conclusion, presynaptic inhibition provides a powerful compensatory mechanism that rapidly reduces effective recurrent interactions and thereby stabilises Hebbian learning.
Experimental results on charge fluctuations in heavy-ion collisions
Creators: name: Mishra, D. K.
name: Garg, P.
name: Netrakanti, P. K.
name: Pant, L. M.
name: Mohanty, A. K.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We present a subset of experimental results on charge fluctuation from the heavy-ion collisions to search for phase transition and location of critical point in the QCD phase diagram. Measurements from the heavy-ion experiments at the SPS and RHIC energies observe that total charge fluctuations increase from central to peripheral collisions. The net-charge fluctuations in terms of dynamical fluctuation measure $ν_{(+-,dyn)}$ are studied as a function of collision energy (\sqsn) and centrality of the collisions. The product of $ν_{(+-,dyn)}$ and $\langle N_{ch} \rangle$ shows a monotonic decrease with collision energies, which indicates that at LHC energy the fluctuations have their origin in the QGP phase. The fluctuations in terms of higher moments of net-proton, net-electric charge and net-kaon have been measured for various \sqsn. Deviations are observed in both $Sσ$ and $κσ^2$ for net-proton multiplicity distributions from the Skellam and hadron resonance gas model for \sqsn $
description: 14 pages, 10 figures; Substantial text modification and equivalent to that published version in Adv. in High. Eng. Physics
Using FAIR and Open Science practices to better understand vegetation browning in Troms and Finnmark (Norway)
Creators: name: Iaquinta, Jean
name: Fouilloux, Anne
Publisher: name: Zenodo
Year: 2023
Subjects: Jupyter Notebook
Lichen
Arctic
Research Object
Machine Learning
Keras
ERA5-land
Copernicus Global Land Cover
Reindeer

description: In most places on the planet vegetation thrives: it is known as “greening Earth”. However in certain regions, especially in the Arctic, there are areas exhibiting a browning trend. This phenomenon is well known but not fully understood yet, and grasping its impact on local ecosystems requires involvement of scientists from different disciplines, including social sciences and humanities, as well as local populations. Here we focus on the Troms and Finnmark counties in northern Norway to assess the extent of the problem and any link with local environmental conditions as well as potential impacts. We have chosen to adopt an open and collaborative process and take advantage of the services offered by RELIANCE on the European Open Science Cloud (EOSC). RELIANCE delivers a suite of innovative and interconnected services that extend the capabilities of the European Open Science Cloud (EOSC) to support the management of the research lifecycle within Earth Science Communities and Copernicus Users. The RELIANCE project has delivered 3 complementary technologies: Research Objects (ROs), Data Cubes and AI-based Text Mining. RoHub is a Research Object management platform that implements these 3 technologies and enables researchers to collaboratively manage, share and preserve their research work. We will show how we are using these technologies along with EGI notebooks to work open and share an executable Jupyter Notebook that is fully reproducible and reusable. We use a number of Python libraries from the Pangeo software stack such as Xarray, Dask and Zarr. Our Jupyter Notebook is bundled with its computational environment, datacubes and related bibliographic resources in an executable Research Object. We believe that this approach can significantly speed up the research process and can drive it to more exploitable results. Up to now, we have used indices derived from satellite data (in particular Sentinel-2) to assess how the vegetation cover in Troms and Finnmark counties has changed. To go a bit further we are investigating how to relate such information to relevant local parameters obtained from meteorological reanalysis data (ERA5 and ERA5-land from ECMWF). That should give a good basis for training an Artificial Intelligence algorithm and testing it, with the objective of getting an idea about the possibility of “predicting” what is likely to happen in the near future with certain types of vegetation like mosses and lichens which are essential for local populations and animals.
Invariant neural subspaces maintained by feedback modulation
Creators: name: Naumann, Laura B.
name: Keijser, Joram
name: Sprekeler, Henning
Publisher: name: Technische Universität Berlin
Year: 2022
Subjects: subject: 570 Biowissenschaften; Biologie
subject: 610 Medizin und Gesundheit
subject: inhibition
subject: neural circuits
subject: modelling
subject: modulation
subject: computational neuroscience
subject: Inhibition
subject: neuronale Schaltkreise
subject: Modellierung
subject: Modulation
subject: theoretische Neurowissenschaften

description: Sensory systems reliably process incoming stimuli in spite of changes in context. Most recent models accredit this context invariance to an extraction of increasingly complex sensory features in hierarchical feedforward networks. Here, we study how context-invariant representations can be established by feedback rather than feedforward processing. We show that feedforward neural networks modulated by feedback can dynamically generate invariant sensory representations. The required feedback can be implemented as a slow and spatially diffuse gain modulation. The invariance is not present on the level of individual neurons, but emerges only on the population level. Mechanistically, the feedback modulation dynamically reorients the manifold of neural activity and thereby maintains an invariant neural subspace in spite of contextual variations. Our results highlight the importance of population-level analyses for understanding the role of feedback in flexible sensory processing.
A Liouville-type theorem for the 3D primitive equations
Creators: name: Peralta-Salas, D.
name: Slobodeanu, R.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Analysis of PDEs (math.AP)
subject: Mathematical Physics (math-ph)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 35Q35, 86A10

description: The 3D primitive equations are used in most geophysical fluid models to approximate the large scale oceanic and atmospheric dynamics. We prove that there do not exist smooth stationary solutions to the 3D primitive equations with compact support, independently of the presence of the Coriolis rotation term or the viscosity. This result is in strong contrast with the recently established existence of compactly supported smooth solutions to the incompressible 3D Euler equations.
description: 10 pages; some remarks and references added
Comparative germination of Tamarix ramosissima spring and summer seeds
Creators: name: Yan, Cheng
name: Yang, Meilin
name: Yan, Wei
Publisher: name: Technische Universität Dortmund
Year: 2011
Subjects: subject: bi-seasonal seed
subject: germination
subject: salinity
subject: Tamarix ramosissima
subject: 610

description: Tamarix ramosissima has bi-seasonal flowering and fruit-setting characteristics. This study compared the morphology and germination characteristics of seeds from Tamarix ramosissima plants during the spring flowering period and the summer flowering period. The results are as follows: there is no significant difference in morphology, such as size and thousandseed weight, between seeds from different the spring and summer flowering periods. Freshly harvested spring and summer flowering period seeds can both rapidly germinate under the 5/15 °C, 5/25 °C, 15/25 °C or 25/35 °C thermoperiods. Average germination time of the spring flowering period seeds is shorter than that of the summer flowering period seeds, with a TG50 of 2-18 hours (TG50 = the time when germinate percentage reached 50 %). NaCl solutions at concentrations below 0.2 mol/L have no significant effect on the germination of Tamarix ramosissima seeds from either flowering periods. However, at above 0.4 mol/L, higher NaCl concentrations adversely affect the Tamarix ramosissima seeds’ germination rates. Seeds from the summer flowering period have higher tolerance of NaCl solutions than seeds from the spring flowering period. Seeds that were incubated in NaCl solution for 8 days cannot recover after being transferred to distilled water (0 % recovery), indicating that NaCl treated seeds permanently lost their germination capability. After storing in room temperature for 2 months, Tamarix ramosissima seeds from both spring and summer flowering periods maintain above 80 % viability. After 2 months, the seed viabilities decrease as the storage time lengthens. The viabilities of seeds from both spring and summer flowering periods decrease to about 40-50 % after storage for 6 months. This study can provide scientific basis for rational utilization of the biological resources in arid desert ecosystems.
description: EXCLI Journal ; Vol. 10, 2011
Exploring accretion disc physics and black hole growth with regular monitoring of ultrafast AGN winds
Creators: name: Pounds, Ken
name: Lobban, Andrew
name: Nixon, Chris
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: 15 years of XMM-Newton observations have established that ultra-fast, highly ionized winds are common in radio-quiet AGN. A simple theory of Eddington-limited accretion correctly predicts the typical velocity (~0.1c) and high ionization of such winds, with observed flow energy capable of ejecting star-forming gas. With a recent extended XMM-Newton observation of the archetypal UFO, PG1211+143, revealing a more complex flow pattern, we suggest that targetted observations over the next decade offer unique potential for probing the inner accretion disc structure and SMBH growth.
description: Proceedings of conference 'XMM-the next decade', at ESAC 10-13 May 2016. To be published in Astron Nachr, 2017. This replacement corrects a misplaced sentence in the original version
Endocrine disrupting compounds exposure and testis development in mammals
Creators: name: Egbowon, Biola F.
name: Mustapha, Olajide A.
Publisher: name: Technische Universität Dortmund
Year: 2011
Subjects: subject: endocrine disrupting compound
subject: human direct exposure
subject: humans
subject: wildlife and male reproductive
subject: 610

description: In the last few decades, there is substantial evidence that male reproductive function is deteriorating in humans and wildlife and this is associated with unintentional exposure to widely used synthetic chemicals. Subsequently, much has been done to show that certain chemicals in the environment adversely interfere with the developing fetal gonads of the laboratory animals. Some in vitro studies have demonstrated treatment-induced reproductive problems in offspring exposed to endocrine disrupting compounds (EDC) which are similar to those observed in wildlife and human population. Few EDC studies have demonstrated that there are certain periods of gestation when the developing fetus is highly sensitive and at risk of small endocrine changes. Similar observations have been made in the sewage sludge model, however, while animal studies have been insightful in providing valuable information about the range of effects that can be attributed to in utero exposure to EDCs, varying levels of maternal doses administered in different studies exaggerated extrapolation of these results to human. Thus the EDC concentration representative of fetal exposure levels is uncertain because of the complexities of its nature. So far, the level of fetal exposure can only be roughly estimated. There is substantial evidence from animal data to prove that EDCs can adversely affect reproductive development and function in male and more has accumulated on the mechanisms by which they exert their effects. This paper therefore, reviews previous studies to highlight the extent to which testis development can be disrupted during fetal life.
description: EXCLI Journal ; Vol. 10, 2011
Generating 3D TOF-MRA volumes and segmentation labels using generative adversarial networks
Creators: name: Subramaniam, Pooja
name: Kossen, Tabea
name: Ritter, Kerstin
name: Hennemuth, Anja
name: Hildebrand, Kristian
name: Hilbert, Adam
name: Sobesky, Jan
name: Livne, Michelle
name: Galinovic, Ivana
name: Khalil, Ahmed A.
name: Fiebach, Jochen B.
name: Frey, Dietmar
name: Madai, Vince I.
Publisher: name: Technische Universität Berlin
Year: 2022
Subjects: subject: 610 Medizin und Gesundheit
subject: 006 Spezielle Computerverfahren
subject: generative adversarial networks
subject: 3D medical imaging
subject: mixed precision
subject: anonymization
subject: brain vessel segmentation

description: Deep learning requires large labeled datasets that are difficult to gather in medical imaging due to data privacy issues and time-consuming manual labeling. Generative Adversarial Networks (GANs) can alleviate these challenges enabling synthesis of shareable data. While 2D GANs have been used to generate 2D images with their corresponding labels, they cannot capture the volumetric information of 3D medical imaging. 3D GANs are more suitable for this and have been used to generate 3D volumes but not their corresponding labels. One reason might be that synthesizing 3D volumes is challenging owing to computational limitations. In this work, we present 3D GANs for the generation of 3D medical image volumes with corresponding labels applying mixed precision to alleviate computational constraints. We generated 3D Time-of-Flight Magnetic Resonance Angiography (TOF-MRA) patches with their corresponding brain blood vessel segmentation labels. We used four variants of 3D Wasserstein GAN (WGAN) with: 1) gradient penalty (GP), 2) GP with spectral normalization (SN), 3) SN with mixed precision (SN-MP), and 4) SN-MP with double filters per layer (c-SN-MP). The generated patches were quantitatively evaluated using the Fréchet Inception Distance (FID) and Precision and Recall of Distributions (PRD). Further, 3D U-Nets were trained with patch-label pairs from different WGAN models and their performance was compared to the performance of a benchmark U-Net trained on real data. The segmentation performance of all U-Net models was assessed using Dice Similarity Coefficient (DSC) and balanced Average Hausdorff Distance (bAVD) for a) all vessels, and b) intracranial vessels only. Our results show that patches generated with WGAN models using mixed precision (SN-MP and c-SN-MP) yielded the lowest FID scores and the best PRD curves. Among the 3D U-Nets trained with synthetic patch-label pairs, c-SN-MP pairs achieved the highest DSC (0.841) and lowest bAVD (0.508) compared to the benchmark U-Net trained on real data (DSC 0.901; bAVD 0.294) for intracranial vessels. In conclusion, our solution generates realistic 3D TOF-MRA patches and labels for brain vessel segmentation. We demonstrate the benefit of using mixed precision for computational efficiency resulting in the best-performing GAN-architecture. Our work paves the way towards sharing of labeled 3D medical data which would increase generalizability of deep learning models for clinical use.
華埠通訊 Vol. 08, Issue 04, June 2005
Creators: name: Chinese Consolidated Benevolent Association (Victoria, B.C.)
Publisher: name: University of Victoria Libraries
Year: 2022
Subjects: subject: Small business
valueUri: http://id.worldcat.org/fast/1121223
subject: Community development
valueUri: http://id.worldcat.org/fast/870818
subject: Immigrants
valueUri: http://id.worldcat.org/fast/967712
subject: Communities
valueUri: http://id.worldcat.org/fast/1430092
subject: Associations, institutions, etc.
valueUri: http://id.worldcat.org/fast/819166
subject: Group identity
valueUri: http://id.worldcat.org/fast/948442
subject: Neighborhoods
valueUri: http://id.worldcat.org/fast/1715963

description: Start of the newsletter with vol. 1, issue 1 in April of 1993. Published bi-monthly by the Chinese Consolidated Benevolent Association.
A BEOL Compatible, 2-Terminals, Ferroelectric Analog Non-Volatile Memory
Creators: name: Bégon-Lours, Laura
name: Halter, Mattia
name: Pineda, Diana Dávila
name: Popoff, Youri
name: Bragaglia, Valeria
name: La Porta, Antonio
name: Jubin, Daniel
name: Fompeyrine, Jean
name: Offrein, Bert Jan
Publisher: name: arXiv
Year: 2023
Subjects: subject: Hardware Architecture (cs.AR)
subject: FOS: Computer and information sciences

description: A Ferroelectric Analog Non-Volatile Memory based on a WOx electrode and ferroelectric HfZrO$_4$ layer is fabricated at a low thermal budget (~375$^\circ$C), enabling BEOL processes and CMOS integration. The devices show suitable properties for integration in crossbar arrays and neural network inference: analog potentiation/depression with constant field or constant pulse width schemes, cycle to cycle and device to device variation <10%, ON/OFF ratio up to 10 and good linearity. The physical mechanisms behind the resistive switching and conduction mechanisms are discussed.
description: 2021 5th IEEE Electron Devices Technology & Manufacturing Conference (EDTM)
Toward Sharing Brain Images: Differentially Private TOF-MRA Images With Segmentation Labels Using Generative Adversarial Networks
Creators: name: Kossen, Tabea
name: Hirzel, Manuel A.
name: Madai, Vince I.
name: Boenisch, Franziska
name: Hennemuth, Anja
name: Hildebrand, Kristian
name: Pokutta, Sebastian
name: Sharma, Kartikey
name: Hilbert, Adam
name: Sobesky, Jan
name: Galinovic, Ivana
name: Khalil, Ahmed A.
name: Fiebach, Jochen B.
name: Frey, Dietmar
Publisher: name: Technische Universität Berlin
Year: 2022
Subjects: subject: 610 Medizin und Gesundheit
subject: 006 Spezielle Computerverfahren
subject: brain vessel segmentation
subject: differential privacy
subject: Generative Adversarial Networks
subject: neuroimaging
subject: privacy preservation

description: Sharing labeled data is crucial to acquire large datasets for various Deep Learning applications. In medical imaging, this is often not feasible due to privacy regulations. Whereas anonymization would be a solution, standard techniques have been shown to be partially reversible. Here, synthetic data using a Generative Adversarial Network (GAN) with differential privacy guarantees could be a solution to ensure the patient's privacy while maintaining the predictive properties of the data. In this study, we implemented a Wasserstein GAN (WGAN) with and without differential privacy guarantees to generate privacy-preserving labeled Time-of-Flight Magnetic Resonance Angiography (TOF-MRA) image patches for brain vessel segmentation. The synthesized image-label pairs were used to train a U-net which was evaluated in terms of the segmentation performance on real patient images from two different datasets. Additionally, the Fréchet Inception Distance (FID) was calculated between the generated images and the real images to assess their similarity. During the evaluation using the U-Net and the FID, we explored the effect of different levels of privacy which was represented by the parameter ϵ. With stricter privacy guarantees, the segmentation performance and the similarity to the real patient images in terms of FID decreased. Our best segmentation model, trained on synthetic and private data, achieved a Dice Similarity Coefficient (DSC) of 0.75 for ϵ = 7.4 compared to 0.84 for ϵ = ∞ in a brain vessel segmentation paradigm (DSC of 0.69 and 0.88 on the second test set, respectively). We identified a threshold of ϵ <5 for which the performance (DSC <0.61) became unstable and not usable. Our synthesized labeled TOF-MRA images with strict privacy guarantees retained predictive properties necessary for segmenting the brain vessels. Although further research is warranted regarding generalizability to other imaging modalities and performance improvement, our results mark an encouraging first step for privacy-preserving data sharing in medical imaging.
Determinants of Customer Based Brand Equity: The Case of Bottled Water Industry in Ethiopia
Creators: name: Ayele, Shewanesh
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2017

description: Brand equity is generally accepted as a critical success factor to any industry and service providers from its competitors. It also contributes both theoretically and practically on Customer based brand equity (CBBE), measurement and assisting managers in a way that it impacts organizations' business preference and profitability at high level. However, there was no adequate theoretical and empirical evidence for the application of CBBE in Ethiopian bottled water industry so that the industry has not been clear with which dimension of the brand equity strongly influences the customers to prefer a brand. Hence, the study was designed to analyze the determinants of CBBE and how brand equity affects bottled water industry in Ethiopia. Explanatory and descriptive research design using cross-sectional survey was carried out from November, 2016 to May, 2017 at randomly selected mini-markets, super markets, restaurants, hotels and offices. Non-probability sampling techniques were employed to select study area and participants. A structured questionnaire was used to collect the data. The data were analyzed by using Statistical Package for Social Sciences (SPSS) version 21.0 software. In this study, the response rate was found to be 95.3% (384/403) in the study area. A multiple regression analysis was employed to verify four hypotheses of all the determinants: Brand Awareness, brand association, brand perceived quality and brand loyalty have a positive and significant effect on CBBE of the industry (p<0.05). The study concluded that all determinants had influential effect on CBBE in the study area. Thus, the bottled water industry should work more on the determinants in order to be competent enough in stiff market in Ethiopia.
Testing the formation scenarios of binary neutron star systems with measurements of the neutron star moment of inertia
Creators: name: Newton, William G.
name: Steiner, Andrew W.
name: Yagi, Kent
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Two low mass neutron stars, J0737-3039B and the companion to J1756-2251, show strong evidence of being formed from the collapse of an ONeMg core in an electron capture supernova (ECSN) or in an ultra-stripped iron core collapse supernova (FeCCSN). Using three different systematically generated sets of equations of state we explore the relationship between the moment of inertia of J0737-3039A and the binding energy of the two low mass neutron stars. We find this relationship, a less strict variant of the recently discovered I-Love-Q relations, is nevertheless more robust than a previously explored correlation between the binding energy and the slope of the nuclear symmetry energy L. We find that, if either J0737-3039B or the J1756-2251 companion were formed in an ECSN, no more than 0.06 solar masses could have been lost from the progenitor core, more than four times the mass loss predicted by current supernova modeling. A measurement of the moment of inertia of J0737-3039A to within 10% accuracy from pulsar timing, possible within a decade, can discriminate between formation scenarios such as ECSN or ultra-stripped FeCCSN and, given current constraints on the predicted core mass loss, potentially rule them out. Using the I-Love-Q relations we find that an Advanced LIGO can potentially measure the neutron star tidal polarizability to equivalent accuracy in a neutron star-neutron star merger at a distance of 200 Mpc, thus obtaining similar constraints on the formation scenarios. Such information on the occurrence of ECSNe is important for population synthesis calculations, especially for estimating the rate of binary neutron star mergers and resulting electromagnetic and gravitational wave signals. Further progress needs to be made modeling the core collapse process that leads to low-mass neutron stars, particularly in making robust predictions for the mass loss from the progenitor core.
description: 10 Pages, 3 figures, Submitted to ApJ
Additional file 1 of Genetic mechanisms underlying increased microalgal thermotolerance, maximal growth rate, and yield on light following adaptive laboratory evolution
Creators: name: Barten, Robin
name: van Workum, Dirk-Jan M.
name: de Bakker, Emma
name: Risse, Judith
name: Kleisman, Michelle
name: Navalho, Sofia
name: Smit, Sandra
name: Wijffels, Rene H.
name: Nijveen, Harm
name: Barbosa, Maria J.
Publisher: name: figshare
Year: 2022
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 1: Figure S1. Photobioreactor dilution rate and temperature during the adaptive laboratory evolution process. Figure S2. The photobioreactor dilution rate during characterization of the wildtype, mut4, and mut11. Figure S3. The concentration of pigments in the wildtype and mutant strains at 38 °C and 42 °C. Figure S4. The concentration of polar fatty acids in the wildtype and mutant strains at 38 °C and 42 °C. Figure S5. Coverage of genome sequencing reads for the wildtype, mut4, mut8, mut11, and mut16. Figure S6. PCA bi-plot of the sequenced mRNA samples collected from steady-state cultures at 38 °C and 42 °C.
華埠通訊 Vol. 02, Issue 09, April 1996
Creators: name: Chinese Consolidated Benevolent Association (Victoria, B.C.)
Publisher: name: University of Victoria Libraries
Year: 2022
Subjects: subject: Neighborhoods
valueUri: http://id.worldcat.org/fast/1715963
subject: Group identity
valueUri: http://id.worldcat.org/fast/948442
subject: Immigrants
valueUri: http://id.worldcat.org/fast/967712
subject: Community development
valueUri: http://id.worldcat.org/fast/870818
subject: Communities
valueUri: http://id.worldcat.org/fast/1430092
subject: Associations, institutions, etc.
valueUri: http://id.worldcat.org/fast/819166
subject: Small business
valueUri: http://id.worldcat.org/fast/1121223

description: Start of the newsletter with vol. 1, issue 1 in April of 1993. Published bi-monthly by the Chinese Consolidated Benevolent Association.
Observing nature as meaning in contemporary Australian sculpture.
Creators: name: Mooney, Leanne.
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.