cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Terminal E1 Ligands from Elements of Group 15 [Terminale E1-Liganden aus Elementen der Gruppe 15]
Creators: name: Scheer, Manfred
Publisher: name: Universität Regensburg
Year: 1995
Subjects: subject: complexes with elements of group 15; molybdenum compounds; multiple bonds; phosphorus compounds; tungsten compounds
subject: 540 Chemie

description: From objects of speculation to manipulable compounds: Two research groups have achieved the synthesis of the long sought metal complexes with terminal phosphido (P3-) ligands by independent routes, and both papers can be found in this issue of Angewandle Chemie. Cummins et al. report on the synthesis of 1 on p. 2042ff, Schrock et al. on the synthesis of 2 on p. 2044ff. Together with phosphaalkynes RCP these are the first compounds with a singly coordinated phosphorus and will be of interest to theoreticians and preparative chemists alike. R = C(CD3)2CH3; Ar = 3,5-C6H3Me2; N3N = (Me3SiNCH2CH2)3N; M = Mo, W.
Heat Management and Quantum Efficiency Enhancement of Phototransistors Made from Two-Dimensional Materials
Creators: name: Islam, Raonaqul
name: Anjum, Ishraq Md
name: Menyuk, Curtis
name: Simsek, Ergun
Publisher: name: Optica
Year: 2024
Subjects: Field enhancement
Composite materials
Phase noise
UMBC Computational Photonics Laboratory
Gold
UMBC Optical Fiber Communications Laboratory
Quantum efficiency
Metal nanoparticles

description: Optica Sensing Congress 2024,Toulouse France,15–19 July 2024
description: By placing a periodic array of metal nanoparticle-silicon nanowire composite structures underneath a monolayer of MoS₂, we achieve the design of a phototransistor with improved thermal management, higher quantum efficiency, and lower phase noise.
Euclidean three-point function in loop and perturbative gravity
Creators: name: Rovelli, Carlo
name: Zhang, Mingyi
Publisher: name: arXiv
Year: 2011
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We compute the leading order of the three-point function in loop quantum gravity, using the vertex expansion of the Euclidean version of the new spin foam dynamics, in the region of gamma<1. We find results consistent with Regge calculus in the limit gamma->0 and j->infinity. We also compute the tree-level three-point function of perturbative quantum general relativity in position space, and discuss the possibility of directly comparing the two results.
description: 16 pages
Syntheses, characterization, and single crystal X-ray analysis of 2-pyridyl aryl selenium (IV) bromides and chlorides
Creators: name: Gujral, Gurjeet
name: Bhasin, Aman K. K.
name: Bhasin, K. K.
name: Gulati, Shivani
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biophysics
subject: Biochemistry
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Medicine
subject: Cell Biology
subject: Molecular Biology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Computational Biology

description: In the present work, a variety of symmetrical and unsymmetrical 2-pyridyl aryl selenium (IV) chlorides or bromides were prepared by the dropwise addition of a dilute solution of bromine or sulfuryl chloride to the corresponding 2-pyridyl aryl selenide in dried organic solvent with continuous stirring at 0 °C. Removal of the solvent under reduced pressure resulted in the synthesis of, 2-pyridyl aryl selenium (IV) bromides or chlorides, respectively, in quantitative yields. The titled dihalides prepared were characterized by elemental analysis, spectroscopic studies, and single crystal X-ray analysis. Single crystal X-ray analysis revealed that the 2-pyridyl aryl selenium (IV) bromides/chlorides have a distorted trigonal bipyramidal structure. The pyridyl and phenyl rings along with a lone pair of electrons on selenium are at equatorial positions whereas chloride/bromide atoms at axial positions of the distorted trigonal bipyramidal structure.
Supersymmetry on the lattice and the status of the Super-Yang-Mills simulations
Creators: name: Bergner, Georg
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: Supersymmetry (SUSY) and supersymmetric field theories are an interesting topic for numerical lattice simulations. Similar to the chiral symmetry there is also no local realization of (interacting) supersymmetry on the lattice. I briefly review the basic reasons for the breaking of supersymmetry. One attempt to solve the problem uses a Ginsparg-Wilson relation for supersymmetry. However, apart from the free theory, a solution of this relation has so far not been found. For supersymmetric Yang-Mills (SYM) theory a fine-tuning of the bare gluino mass is enough to arrive at a supersymmetric continuum limit. The last part of this work contains a short status report of recent SYM simulations.
description: 7 pages, 2 figures, based on a talk presented at the XXVIII International Symposium on Lattice Field Theory (Lattice2010), June 14-19, 2010, Villasimius, Italy
Slowly Rotating Black Holes in Einstein-Generalized Maxwell Gravity
Creators: name: Hendi, S. H.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this paper, with considering the nonlinear electromagnetic field coupled to Einstein gravity, we obtain the higher dimensional slowly rotating charged black hole solutions. By use of the fact that the temperature of the extreme black hole is zero, we find that these solutions may be interpreted as black hole solutions with inner (Cauchy) and outer (event) horizons provide that the mass parameter $m$ is greater than an extremal value $m_{ext}$, an extreme black hole if $m=m_{ext}$ and a naked singularity otherwise. Also, we find that the asymptotic behavior of the spacetime is not anti deSitter for the special values of the nonlinearity parameter. Then, we compute the ADM mass, electrical charge, temperature, entropy, angular momentum and gyromagnetic ratio of the solutions. Calculations of the electromagnetic field, electrical charge, entropy and temperature showed that they are sensitive with respect to the changing of nonlinearity parameter.
description: 12 pages
Bis(trimethylsilyl)phosphide der Alkalimetalle
Creators: name: Uhlig, F.
name: Gremler, S.
name: Dargatz, Manfred
name: Scheer, Manfred
name: Herrmann, E.-G.
Publisher: name: Universität Regensburg
Year: 1991
Subjects: subject: Alkali metal bis(trimethylsilyl)phosphides; tris(trimethylsilyl)phosphine; syntheses; NMR investigation
subject: 540 Chemie

description: Die Bis(trimethylsilyl)phosphide aller Alkalimetalle, MP[Si(CH3)]2 (M = Li 3, Na 4, K 5, Rb 6, Cs 7), wurden in einfacher Weise durch Umsetzung von Bis(trimethylsilyl)phosphan mit dem entsprechenden Alkalimetall in Gegenwart von Naphthalen oder mit dem Metallhydrid hergestellt. Die Signale in den 31P-NMR-Spektren verschieben sich mit Zunahme der Ordnungszahl des Alkalimetall-Ions zu tieferem Feld (: 3 = 4 < 5 < 6 < 7). 3 und 4 bilden Solvate. Eine vereinfachte Synthese von P[Si(CH3)3]3 wird beschrieben.
An efficient approach to the synthesis of 7-thioxosubstituted [1,3]thiazolo[3,2-c]pyrimidines and evaluation of their antimicrobial and antioxidant activities
Creators: name: Litvinchuk, Mariia B.
name: Bentya, Anton V.
name: Stasevych, Maryna V.
name: Zvarych, Viktor I.
name: Komarovska-Porokhnyavets, Olena Z.
name: Stadnytska, Nataliya E.
name: Lubenets, Vira I.
name: Rusanov, Eduard B.
name: Vovk, Mykhailo V.
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Biophysics
subject: Biochemistry
subject: Genetics
subject: FOS: Biological sciences
subject: Pharmacology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Plant Biology

description: A preparatively convenient one-pot method for the synthesis of new 7-thioxo[1,3]thiazolo[3,2-c]pyrimidine derivatives 3a–3l by the cyclocondensation of 5-methyl(1,3-thiazolidin-2-ylidene)ketones 1a–1c with aroyl 2a–2d and 2-thienyl 2e isothiocyanates for 6–10 h boiling in acetone has been developed. Studies of the antimicrobial and antioxidant activities potential of the obtained compounds revealed that [2-methyl-5-(4-nitrophenyl)-7-thioxo-2,3-dihydro-7H-[1,3]thiazolo[3,2-c]pyrimidine-8-yl](phenyl)methanone 3k, effect on the test culture of M. luteum at a concentration of 0.5% is close to the control drug vancomycin. Moreover, [5-(4-bromophenyl)-2-methyl-7-thioxo-2,3-dihydro-7H-[1,3]thiazolo[3,2-c]pyrimidin-8-yl](phenyl)methanone 3j has an antibacterial effect on the specified test culture at a minimum inhibitory concentration of 15.6 μg/mL. In turn, 1-(2-methyl-5-(thiophen-2-yl)-7-thioxo-2,3-dihydro-7H-[1,3]thiazolo[3,2-c]pyrimidin-8-yl]ethanone 3d can be considered promising for further structural modification to enhance the antioxidant effect. The structure of all synthesized substances was established by spectral analysis (1H and 13C NMR, LC–MS, and FT-IR). Additionally, the structure of compound 3i was confirmed by X-ray diffraction analysis.
Thermal Analysis of Photodetectors in Steady-State
Creators: name: Anjum, Ishraq Md
name: Hastings, Alexander S.
name: Tulchinsky, David A.
name: Williams, Keith J.
name: Menyuk, Curtis
name: Simsek, Ergun
Publisher: name: Optica
Year: 2024
Subjects: Photodetectors
Indium gallium arsenide
Phase noise
Microwave photonics
UMBC Optical Fiber Communications Laboratory
Crosstalk
Quantum efficiency

description: Optica Sensing Congress 2024,Toulouse France,15–19 July 2024
description: This study introduces a method to approximate temperature distribution in steady-state photodetectors under optical excitation. Findings underscore the influence of temperature on key attributes, revealing overestimation with constant temperature assumptions. Insights aid in optimizing photodetector performance.
The Arecibo Methanol Maser Galactic Plane Survey-IV: Accurate Astrometry and Source Morphologies
Creators: name: Pandian, J. D.
name: Momjian, E.
name: Xu, Y.
name: Menten, K. M.
name: Goldsmith, P. F.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present accurate absolute astrometry of 6.7 GHz methanol masers detected in the Arecibo Methanol Maser Galactic Plane Survey using MERLIN and the Expanded Very Large Array (EVLA). We estimate the absolute astrometry to be accurate to better than 15 and 80 milliarcseconds for the MERLIN and EVLA observations respectively. We also derive the morphologies of the maser emission distributions for sources stronger than ~ 1 Jy. The median spatial extent along the major axis of the regions showing maser emission is ~ 775 AU. We find a majority of methanol maser morphologies to be complex with some sources previously determined to have regular morphologies in fact being embedded within larger structures. This suggests that some maser spots do not have a compact core, which leads them being resolved in high angular resolution observations. This also casts doubt on interpretations of the origin of methanol maser emission solely based on source morphologies. We also investigate the association of methanol masers with mid-infrared emission and find very close correspondence between methanol masers and 24 micron point sources. This adds further credence to theoretical models that predict methanol masers to be pumped by warm dust emission and firmly reinforces the finding that Class II methanol masers are unambiguous tracers of embedded high-mass protostars.
description: Accepted by ApJ
A first-principles DFT study on the adsorption behaviour of CO, CO2, and O3 on pristine B24N24 and silicon-decorated B24N24 nanosheet
Creators: name: Hasan, Md. Mehade
name: Kabir, Md. Humaun
name: Badsha, Md. Alamgir
name: Hossain, Md. Rakib
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Biophysics
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Using first-principles within density functional (DFT) theory, adsorption of CO, CO2, and O3 gas molecules on pristine B24N24 (BN) and Silicon-decorated B24N24 (SiBN) nanosheets has been investigated. Adsorption energies, Mulliken charge, dipole moments, and global indicies are estimated to predict the adsorption behavior of CO, CO2, and O3 by using DFT method at 6-31 G (d, p)/B3LYP level. After silicon doping, unlike CO and CO2, sensing performance improves for the case of O3. The findings reveal that the interaction between O3 and SiBN is stronger than that between O3 and bare BN, suggesting that silicon helps to strengthen the interaction of O3 molecule with BN nanosheet. DFT calculations clearly indicate that the Si-doped BN nanosheet would be a promising O3 gas sensor. To prove the successful interactions among the adsorbents (BN and SiBN) and adsorbates (CO, CO2, and O3), the UV-vis spectra have been analyzed for every system where both the blue shift and red shift have been confirmed. Finally, it can be said that pristine BN nanosheet is a better sensor than SiBN for CO, CO2 gas molecules while SiBN is better for O3 molecules.
SUMIT: Secure Unicast and Multicast Communication in Internet of Mobile Things
Creators: name: Reefat, Hasin Ishraq
name: Ebrahimabadi, Mohammad
name: Younis, Mohamed
name: Alkanhal, Mona
name: Karimi, Naghmeh
name: Sirisha, Fnu
Publisher: name: Maryland Shared Open Access Repository
Year: 2024

description: IEEE Global Communications Conference (GLOBECOM), Cape Town, South Africa, December 2024
description: An Internet of Mobile Things (IoMT) refers to an internetworked group of pervasive devices that coordinate their motion and task execution through frequent status and data exchange. An IoMT could be serving critical applications such as military reconnaissance, security surveillance, etc., and hence the authenticity, integrity and confidentiality of the transmitted data must be ensured. Yet, achieving the security goals is challenging due to the dynamic nature of the network topology, the constrained computational and communication resources, and the variety of packet traffic patterns among the nodes. This paper proposes an effective solution that leverages lightweight hardware primitives, specifically, Physical Unclonable Functions (PUFs), to support secure communication in the network. The employed PUFs are used to generate peer-to-peer encryption keys to protect the data traffic among nodes and to the command center, while coping with the dynamic change of the network topology. Our solution efficiently supports both unicast and multicast communications. The proposed solution is validated through analysis and prototype implementation on an FPGA.
Connecting scaling with short-range correlations
Creators: name: Berardo, D.
name: Barbaro, M. B.
name: Cenni, R.
name: Donnelly, T. W.
name: Molinari, A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We reexamine several issues related to the physics of scaling in electron scattering from nuclei. A basic model is presented in which an assumed form for the momentum distribution having both long- and short-range contributions is incorporated in the single-particle Green function. From this one can obtain saturation of nuclear matter for an NN interaction with medium-range attraction and short-range repulsion, and can obtain the density-density polarization propagator and hence the electromagnetic response and scaling function. For the latter, the shape of the scaling function and how it approaches scaling as a function of momentum transfer are both explored.
description: 24 pages, 15 figures. A reference has been corrected and updated
Genetics of adaptation in experimental populations of yeast
Creators: name: Ono, Jasmine
Publisher: name: University of British Columbia
Year: 2017

description: Evolution proceeds through genetic changes to individuals, which are either propagated or disappear over generations. Adaptation is one of the main mechanisms driving these changes in genetic composition. Speciation can also result from different, and incompatible, genetic changes occurring in different populations. This thesis furthers our knowledge of the genetics of adaptation and speciation using the budding yeast Saccharomyces cerevisiae. My work on the genetic basis of adaptation to high concentrations of copper, when contrasted with a similar experiment using the fungicide nystatin, showed that the environment has a strong influence on both the number of genes that are the targets of selection and the types of potentially beneficial mutations. These results have implications for the repeatability of genetic evolution. In a second study, I found that genetic interactions between individually isolated single-step beneficial mutations from the same selective environment often exhibited the type of epistasis that underlies speciation even though these mutations occurred within a single biosynthetic pathway. These results support the mutation-order model of speciation by adaptation, where the chance order of mutations in separated populations leads to divergence and the build-up of reproductive isolation due to genetic incompatibility. Negative genetic interactions became positive when the level of stress was increased, indicating that genetically-based reproductive isolation can also be environment-dependent. Finally, I found that diploid yeast were generally not able to adapt to a level of fungicide to which haploid yeast can adapt. Diploids have been found to adapt to a lower concentration of the same drug, indicating that the exact environment (type and concentration) and ploidy can have an impact on the likelihood of genetic rescue. Together, these results have implications for our understanding of the genetic basis of adaptation in different types of environments and different levels of the same environmental stressor.
Weak Mixing Angle and Proton Stability in F-theory GUT
Creators: name: Choi, Kang-Sin
name: Kyae, Bumseok
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: It is pointed out that a class of flipped SU(5) models based on F-theory naturally explains the gauge coupling unification. It is because the group SU(5) x U(1)_X is embedded in SO(10) and E_8. To prohibit the dimension 4 and 5 proton decay processes, the structure group should be SU(3) or smaller. Extra heavy vector-like pairs of {5_{-2},5*_2} except only one pair of Higgs should be also disallowed, because they could induce the unwanted dimension 5 proton decays. We construct a simple global F-theory model considering these points. To maintain sin^2 theta_W^0 = 3/8 at the GUT scale, the fluxes are turned-on only on the flavor branes.
description: 22 pages
Px ligands with a maximum of electron-donating ability *1: VI. [CoCp“(η4-P4){Cr(CO)5}3] (Cp” =η5-C5H3tBu2-1,3), the product of the reaction between P4 and [CoCP“(μ-CO)]2 in the presence of [Cr(CO)5THF]
Creators: name: Scheer, Manfred
name: Becker, Uta
name: Huffman, J. C.
name: Chisholm, Malcolm H.
Publisher: name: Universität Regensburg
Year: 1993
Subjects: subject: 540 Chemie

description: The reaction of P4 with [CoCp“(μ-CO)]2 in the presence of [Cr(CO)5THF] leads to [CoCp”(η4-P4){Cr(CO)5}3] (Cp“ = η5-C5H3 tBu2-1,3) (IUPAC formula [CoCp”[{Cr(CO)5}3(PH-1κP1,2κP2, 3κP3)] (κ-P1,P2,P3,P4)]) as a final product. An X-ray structural study reveals a complex with a planar cyclo-P4 ligand capped by a Cp”Co unit. Three of the phosphorus atoms are also coordinated to [Cr(CO)5] groups.
Syntheses, characterization, and single crystal X-ray analysis of 2-pyridyl aryl selenium (IV) bromides and chlorides
Creators: name: Gujral, Gurjeet
name: Bhasin, Aman K. K.
name: Bhasin, K. K.
name: Gulati, Shivani
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Biophysics
subject: Biochemistry
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Medicine
subject: Cell Biology
subject: Molecular Biology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Computational Biology

description: In the present work, a variety of symmetrical and unsymmetrical 2-pyridyl aryl selenium (IV) chlorides or bromides were prepared by the dropwise addition of a dilute solution of bromine or sulfuryl chloride to the corresponding 2-pyridyl aryl selenide in dried organic solvent with continuous stirring at 0 °C. Removal of the solvent under reduced pressure resulted in the synthesis of, 2-pyridyl aryl selenium (IV) bromides or chlorides, respectively, in quantitative yields. The titled dihalides prepared were characterized by elemental analysis, spectroscopic studies, and single crystal X-ray analysis. Single crystal X-ray analysis revealed that the 2-pyridyl aryl selenium (IV) bromides/chlorides have a distorted trigonal bipyramidal structure. The pyridyl and phenyl rings along with a lone pair of electrons on selenium are at equatorial positions whereas chloride/bromide atoms at axial positions of the distorted trigonal bipyramidal structure.
Analytic and "frozen" QCD coupling constants up to NNLO from DIS data
Creators: name: Kotikov, A. V.
name: Krivokhizhin, V. G.
name: Shaikhatdenov, B. G.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Deep inelastic scattering data on the F_2 structure function provided by the BCDMS, SLAC and NMC collaborations are analyzed in the non-singlet approximation with the analytic and "frozen" modifications of the strong coupling constant featuring no unphysical singularity (the Landau pole). Improvement of agreement between theory and experiment, with respect to the case of the standard perturbative definition of alpha_s considered recently, is observed and the behavior of the higher twist terms in the next-to-next-to-leading-order is found to be confirming earlier studies on the subject.
description: 22 pp, 8 figs
Entanglement Distribution using Loop-Based Quantum Memories
Creators: name: Pittman, Todd B.
name: Evans, Carson J.
name: Nunn, Cory M.
name: Cheng, Sandra W. L.
name: Franson, James D.
Publisher: name: Optica
Year: 2024
Subjects: Optical delay lines
Quantum communications
Parametric down conversion
Entanglement distribution
Photonic entanglement
Quantum memories

description: Quantum 2.0 2024, Rotterdam Netherlands, 23–27 June 2024
description: We describe experimental work on storing polarization-entangled photons in distant “loop-based” quantum memories. The inherently broadband nature of this memory platform offers advantages in various entanglement distribution and quantum networking applications.
Das Recht der Kinder auf Beziehung zum inhaftierten Vater: Eine Forschungsarbeit zum Stand der Sensibilisierung in der Sozialen Arbeit
Creators: name: Aeschlimann, Judith
name: Burri, Alexie
Publisher: name: Zenodo
Year: 2019

description: Diese Forschungsarbeit widmet sich dem Recht der Kinder auf Beziehung, basierend auf dem Artikel 9 der UNO-Kinderrechtskonvention (UNKRK), wenn der Vater inhaftiert ist. Ziel des Forschungsteils ist es, herauszufinden, inwieweit die Soziale Arbeit in der Praxis auf dieses Recht sensibilisiert ist. Sie enthält wichtige Informationen zum Thema Bindung und Beziehung zwischen Vater und Kind, zum Schweizer Strafvollzug, zu den Folgen der Inhaftierung des Vaters auf die Entwicklung und Beziehung zum Kind sowie den internationalen sowie nationalen Abkommen und Gesetze, welche die Wichtigkeit dieses Rechts auf Beziehung aufzeigen. Sie zeigt auf, wo diesem Recht auf Beziehung in der Praxis Grenzen gesetzt sind. Als Ausgangslage dient den Autorinnen die erste explizite Erwähnung der Kinder inhaftierter Eltern in den Schlussbemerkungen des Ausschusses für die Rechte der Kinder der UNO von 2015. Unter Punkt 52 wird unter anderem festgestellt, dass es nicht bekannt ist, ob die Beziehung zwischen Kind und inhaftiertem Elternteil unterstützt wird. Unter Punkt 21b wird vorgeschlagen, dass unter anderem die Soziale Arbeit auf die Themen der UNKRK geschult und sensibilisiert werden sollen. Der Frage nach der Sensibilisierung auf die UNKRK wurde mittels Leitfadeninterviews der Sozialarbeitenden im Strafvollzug sowie im Kinderschutz nachgegangen und anschliessend qualitativ ausgewertet. Es zeigte sich, dass das Bewusstsein für das Kindeswohl und die UNKRK vorhanden ist und in der Arbeit soweit möglich berücksichtigt wird. Die Arbeit zeigt auch auf, dass noch Handlungsbedarf besteht und gibt Hinweise, was die Soziale Arbeit unternehmen kann, um diese Kinder noch gezielter zu unterstützen.
description: + Code Diss LU: hslusa basa be 2019 + hslusa bask be 2019 + Fussnote: Bachelorarbeit, Hochschule Luzern - Soziale Arbeit, Ausbildungsgang Sozialarbeit, 2019
Fostering glocal intercultural awareness through virtual exchange in TESOL teacher education
Creators: name: Glimäng, Malin Reljanovic
name: Sauro, Shannon
Publisher: name: Wiley
Year: 2024

description: This article reports on a 7-week virtual exchange (VE) involving teacher candidates in three countries in co-creation of learning materials based on the United Nations Sustainable Development Goals (UN SDGs). The aim of the study was to investigate whether and how the participants found a VE project focused on global citizenship education beneficial for their training as English language teachers. Through the lens of critical and reflexive interculturality, the researchers analyzed VE participants' self-reported data in relation to four categories on global competence: investigating the world, acknowledging perspectives, sharing ideas, and taking action (OECD, 2019). Participants reported that cross-cultural collaboration on a professionally oriented task was a potentially empowering activity enabling future teachers not only to gain intercultural and pedagogical self-awareness, but also to understand TESOL from both local and global perspectives. With relevance for teacher educators and teachers in the wider international TESOL community, the findings contribute to the growing body of research demonstrating the value of merging VE with global citizenship education in TESOL teacher preparation.
THE ROLE OF PHRASAL VERBS IN VERBALIZING POLITENESS PRINCIPLEAND POLITENESS THEORY
Creators: name: Tukhtakhodjayeva, Z.T.
name: Gulmurodova, G.U.
Publisher: name: Zenodo
Year: 2025

description: This article is devoted to the relationship between phrasal verbs in literary texts in English and Brown and Levinson’s politeness theory and Leech’s politeness principle. With the help of a qualitative analysis of several literary discourse samples, this paper investigates how phrasal verbs are utilized in different politeness contexts. The analysis focuses on pragmatic functions of phrasal verbs in literary dialogues, defining their role in using politeness in conversational interactions. The findings indicate that phrasal verbs often represent markers of politeness, particularly in indirect speech acts, and containing various politeness maxims and strategies. This research highlights the importance of phrasal verbs in pragmatic competence and language teaching.
Compagnia di San Paolo, Italy/Fundacion BBVA, Spain/German Marshall Fund of the US/Luso-American Foundation, Portugal/Tipping Point Fdtn., Bulgaria Poll: June 2007
Creators: name: Compagnia Di San Paolo, Italy
name: Fundacion BBVA, Spain
name: US, German Marshall Fund Of The
name: Luso-American Foundation, Portugal
name: Tipping Point Fdtn., Bulgaria
Publisher: name: Roper Center for Public Opinion Research
Year: 2007

Abstract
The targum (1878:Nov.)
Creators: name: No Name Supplied
Publisher: name: Targum Association
Year: 1878

description: Some University historians indicate that the Targum was first published as an annual in 1867, but of this we have no extant evidence. In January 1869, the Targum as we now know it, made its appearance as a monthly paper that concerned itself with student “literary contributions” and college news as well as serving as a vehicle for bringing news to alumni and the general public. The newspaper, which originally was for sale, varied in frequency over the years as did its title (The Targum, Rutgers Targum, Rutgers Daily Targum, and Daily Targum). The newspaper has continuously been published since 1869 with the exception of 19 months during the second world war, between February 1944 and October 1945. The Targum was published by the students of Rutgers College, and later Rutgers University—New Brunswick represented through the years as the Targum Association, Rutgers Targum Association, and Rutgers College Targum. As a student organization, the Targum operated under the oversight of the dean of students and student government but in October 1980, the Targum became an independent college paper.
Metal-insulator transition caused by the coupling to localized charge-frustrated systems under ice-rule local constraint
Creators: name: Ishizuka, Hiroaki
name: Udagawa, Masafumi
name: Motome, Yukitoshi
Publisher: name: arXiv
Year: 2011
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We report the results of our theoretical and numerical study on electronic and transport properties of fermion systems with charge frustration. We consider an extended Falicov-Kimball model in which itinerant spinless fermions interact repulsively by U with localized particles whose distribution satisfies a local constraint under geometrical frustration, the so-called ice rule. We numerically calculate the density of states, optical conductivity, and inverse participation ratio for the models on the pyrochlore, checkerboard, and kagome lattices, and discuss the nature of metal-insulator transitions at commensurate fillings. As a result, we show that the ice-rule local constraint leads to several universal features in the electronic structure; a charge gap opens at a considerably small U compared to the bandwidth, and the energy spectrum approaches a characteristic form in the large U limit, that is, the noninteracting tight-binding form in one dimension or the $δ$-functional peak. In the large U region, the itinerant fermions are confined in the macroscopically-degenerate ice-rule configurations, which consist of a bunch of one-dimensional loops: We call this insulating state the charge ice. On the other hand, transport properties are much affected by the geometry and dimensionality of lattices; e.g., the pyrochlore lattice model exhibits a transition from a metallic to the charge-ice insulating state by increasing U, while the checkerboard lattice model appears to show Anderson localization before opening a gap. Meanwhile, in the kagome lattice case, we do not obtain clear evidence of Anderson localization. Our results elucidate the universality and diversity of phase transitions to the charge-ice insulator in fully frustrated lattices.
description: 16 pages, 17 figures
Sustaining Cultural and Disability Identities in the Literacy Classroom, K-6
Creators: name: Pruitt, Shevonne
Publisher: name: Taylor & Francis
Year: 2024
Subjects: inclusive literacy
Disability Identities
Sustaining Cultural and Disability Identities in the Literacy Classroom, K-6
Amy Tondreau
UMBC Education Department

description: Sustaining Cultural and Disability Identities in the Literacy Classroom, K-6, Authors: Amy Tondreau and Laurie Rabinowitz, 2024
Andy Warhol's Ancestry: Facts, Myths, and Mysteries
Creators: name: Rusinko, Elaine
Publisher: name: Maryland Shared Open Access Repository
Year: 2019

description: Andy Warhol is the most famous American of Carpatho-Rusyn descent, but questions about his ethnicity persist. This study explores the Warhola-Zavacky family’s ethnic background and traces Warhol’s ancestry based on archival evidence, uncovering new, unanticipated information.
VCIOM-Sputnik Poll: November 2018
Creators: name: VCIOM (Russian Public Opinion Research Center)
Publisher: name: Roper Center for Public Opinion Research
Year: 2018

description: President of Russia approval (1); Prime Minister approval (1); State Duma of Russia (2); political party preference (2); mass protests (2); Internet usage (1); watch TV (1); trade unions (1); judicial system (1); Russian Orthodox church (1); personal financial situation (2); employment (2); sources of income (1); most important problems (5); rise in prices, inflation (2); Russian ruble and US dollar exchange rate fluctuations (3); unemployment (2); take out loans (2); spend or save money (1); savings (1); economic policy (1); social policy (1); foreign policy (1); direction of country (1); life satisfaction (2).
Impact of Confinement within a Hydrogel Mesh on Protein Thermodynamic Stability and Aggregation Kinetics
Creators: name: Ghassemi, Zahra
name: Leach, Jennie
Publisher: name: ACS
Year: 2024

description: Though protein stability and aggregation have been well characterized in dilute solutions, the influence of a confining environment that exists (e.g., in intercellular and tissue spaces and therapeutic formulations) on the protein structure is largely unknown. Herein, the effects of confinement on stability and aggregation were explored for proteins of different sizes, stability, and hydrophobicity when encapsulated in hydrophilic poly(ethylene glycol) hydrogels. Denaturation curves show linear correlations between confinement size (mesh size) and thermodynamic stability, i.e., unfolding free energy and surface area accessible for solvation (represented by m-value). Two clusters of protein types are identifiable from these correlations; the clusters are defined by differences in protein stability, surface area, and aggregation propensity. Proteins with higher stability, larger surface area, and lower aggregation propensity (e.g., lysozyme and myoglobin) are less affected by the confinement imposed by mesh size than proteins with lower stability, smaller surface area, and higher aggregation propensity (e.g., growth hormone and aldehyde dehydrogenase). According to aggregation kinetics measured by thioflavin T fluorescence, confinement in smaller mesh sizes resulted in slower aggregation rates than that in larger mesh sizes. Compared to that in buffer solution, the confinement of a hydrophobic protein (e.g., human insulin) in the hydrogels accelerates protein aggregation. Conversely, the confinement of a hydrophilic protein (e.g., human amylin) in the hydrogels decelerates or prevents aggregation, with the rates of aggregation inversely proportional to mesh size. These findings provide new insights into protein conformational stability in confined microenvironments relevant to various cellular, tissue, and therapeutics scenarios.
Scaling of mean first-passage time as efficiency measure of nodes sending information on scale-free Koch networks
Creators: name: Zhang, Zhongzhi
name: Gao, Shuyang
Publisher: name: arXiv
Year: 2011
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: A lot of previous work showed that the sectional mean first-passage time (SMFPT), i.e., the average of mean first-passage time (MFPT) for random walks to a given hub node (node with maximum degree) averaged over all starting points in scale-free small-world networks exhibits a sublinear or linear dependence on network order $N$ (number of nodes), which indicates that hub nodes are very efficient in receiving information if one looks upon the random walker as an information messenger. Thus far, the efficiency of a hub node sending information on scale-free small-world networks has not been addressed yet. In this paper, we study random walks on the class of Koch networks with scale-free behavior and small-world effect. We derive some basic properties for random walks on the Koch network family, based on which we calculate analytically the partial mean first-passage time (PMFPT) defined as the average of MFPTs from a hub node to all other nodes, excluding the hub itself. The obtained closed-form expression displays that in large networks the PMFPT grows with network order as $N \ln N$, which is larger than the linear scaling of SMFPT to the hub from other nodes. On the other hand, we also address the case with the information sender distributed uniformly among the Koch networks, and derive analytically the entire mean first-passage time (EMFPT), namely, the average of MFPTs between all couples of nodes, the leading scaling of which is identical to that of PMFPT. From the obtained results, we present that although hub nodes are more efficient for receiving information than other nodes, they display a qualitatively similar speed for sending information as non-hub nodes. Moreover, we show that the location of information sender has little effect on the transmission efficiency. The present findings are helpful for better understanding random walks performed on scale-free small-world networks.
description: Definitive version published in European Physical Journal B
Investigation of a quick tagging mechanism to help enhance the video learning experience
Creators: name: Zhang, Xueqin
Publisher: name: University of British Columbia
Year: 2017

description: Video continues to be used extensively as an instructional aid within modern educational contexts, such as in blended (flipped) courses, self-learning with MOOCs (Massive Open Online Courses), informal learning through online tutorials, and so on. One challenge is providing mechanisms for students to efficiently bookmark video content and quickly recall and review their video collection. We have run a background study to understand how students annotate video content, focusing especially on what words they would use most to bookmark video content. From this study, we proposed to leverage a quick tagging mechanism in an educational video interface comprised of a video filmstrip and transcript, both presented adjacent to a video player. The 'quick' tagging is defined as an easy and fast way to mark course video parts with predefined semantic tags. We use the metaphor of marking and highlighting textbook to achieve our quick tagging interaction. This mechanism was evaluated in a controlled study with handwritten notes. We found that participants using our quick tagging interface spent around 10% longer watching and learning from video on average than when taking notes on paper. Our participants also reported that tagging is a useful addition to instructional videos that helps them recall video content and finish learning tasks.
P4-Liganden mit maximaler Elektronendonorfähigkeit *1: II. [Fe(CO)4(μ-P2)2μ-Fe2(CO)62]—ein Komplex mit einer ungewöhnlich stabilisierten P4-Einheit
Creators: name: Scheer, Manfred
name: Dargatz, Manfred
name: Schenzel, Karla
Publisher: name: Universität Regensburg
Year: 1992
Subjects: subject: 540 Chemie

description: Die Reaktion von weißem Phosphor mit Fe2(CO)9 in siedendem Benzol führt zur Bildung von [Fe(CO)4 (μ-P2)2μ-Fe2(CO)62] (1). Die Strukturbestimmung von 1 erfolgt durch die Kristallstrukturanalyse; Raumgruppe P21 / c mit a 1718.3(6), b 1038.3(3), c 2016.8(5) pm, β 115.87(2)° bei −95°C. Die asymmetrische Einheit enthält zwei halbe Moleküle, deren andere Hälfte durch kristallografische Inversion ergänzt wurde. Eine rechteckiger P4-Ligand wird an den kurzen Seiten (d(PP) = 213.0(3) bzw. 212.4(4) pm) von jeweils einer [Fe(CO)4]-Gruppe überbrückt, während die langen Kanten (d(PP) = 260.3(3) bzw. 260.3(4) pm) von [Fe2(CO) 6]-Einheiten zusammengehalten werden. Die vier P-Atome und die beiden Fe-Atome der [Fe(CO)4]-Einheiten bilden eine Ebene zu der senkrecht die [Fe2(CO)9]-Gruppen angeordnet sind. In einer ungewöhnlichen Elektronenverteilung stellt der P4-Ligand 16 Valenzelektronen dem Gesamtkomplex zur Verfügung.
Matrix-Based Representations and Gradient-Free Algorithms for Neural Network Training
Creators: name: Rozario, Turibius
name: Oveissi, Parham
name: Goel, Ankit
Publisher: name: IEEE
Year: 2024

description: 23rd Annual International Conference on Association for Machine Learning and Applications (AMLA), Miami, Florida, Dec. 18-20, 2024
description: This paper presents a compact, matrix-based representation of neural networks. Although neural networks are often understood pictorially as interconnected neurons, they are fundamentally mathematical nonlinear functions constructed by composing several vector-valued functions. Using basic results from linear algebra, we represent neural networks as an alternating sequence of linear maps and scalar nonlinear functions, known as activation functions. The training of neural networks involves minimizing a cost function, which typically requires the computation of a gradient. By applying basic multivariable calculus, we show that the cost gradient is also a function composed of a sequence of linear maps and nonlinear functions. In addition to the analytical gradient computation, we explore two gradient-free training methods. We compare these three training methods in terms of convergence rate and prediction accuracy, demonstrating the potential advantages of gradient-free approaches.
Learning-based Attitude Estimation with Noisy Measurements and Unknown Gyro Bias
Creators: name: Oveissi, Parham
name: Mirtaba, Mohammad
name: Goel, Ankit
Publisher: name: IEEE
Year: 2024

description: 23rd Annual International Conference on Association for Machine Learning and Applications (AMLA), Miami, Florida, Dec. 18-20, 2024
description: This paper introduces a learning-based, datadriven attitude estimator, called the retrospective cost attitude estimator (RCAE), for the SO(3) attitude representation. RCAE is motivated by the multiplicative extended Kalman filter (MEKF). However, unlike MEKF, which requires computing a Jacobian to compute the correction signal, RCAC uses retrospective cost optimization that depends only on the measured data. Moreover, due to the structure of the correction signal, RCAE does not require explicit estimation of gyro bias. The performance of RCAE is verified and compared with MEKF through both numerical simulations and physical experiments.
Renewal stochastic processes with correlated events. Phase transitions along time evolution
Creators: name: Velázquez, Jorge
name: Robledo, Alberto
Publisher: name: arXiv
Year: 2011
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We consider renewal stochastic processes generated by non-independent events from the perspective that their basic distribution and associated generating functions obey the statistical-mechanical structure of systems with interacting degrees of freedom. Based on this fact we look briefly into the less known case of processes that display phase transitions along time. When the density distribution ψ_{n}(t) for the occurrence of the n-th event at time t is considered to be a partition function, of a 'microcanonical' type for n 'degrees of freedom' at fixed 'energy' t, one obtains a set of four partition functions of which that for the generating function variable z and Laplace transform variable ε, conjugate to n and t, respectively, plays a central role. These partition functions relate to each other in the customary way and in accordance to the precepts of large deviations theory, while the entropy, or Massieu potential, derived from ψ_{n}(t) satisfies an Euler relation. We illustrate this scheme first for an ordinary renewal process of events generated by a simple exponential waiting time distribution ψ(t). Then we examine a process modelled after the so-called Hamiltonian Mean Field (HMF) model that is representative of agents that perform a repeated task with an associated outcome, such as an opinion poll. When a sequence of (many) events takes place in a sufficiently short time the process exhibits clustering of the outcome, but for larger times the process resembles that of independent events. The two regimes are separated by a sharp transition, technically of the second order. Finally we point out the existence of a similar scheme for random walk processes.
description: to be published in Phys. Rev. E
Test Problems in Optimization
Creators: name: Yang, Xin-She
Publisher: name: arXiv
Year: 2010
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics

description: Test functions are important to validate new optimization algorithms and to compare the performance of various algorithms. There are many test functions in the literature, but there is no standard list or set of test functions one has to follow. New optimization algorithms should be tested using at least a subset of functions with diverse properties so as to make sure whether or not the tested algorithm can solve certain type of optimization efficiently. Here we provide a selected list of test problems for unconstrained optimization.
Zur Synthese von Tris(diorganylphosphino)phosphanen mit Substituenten geringen Raumbedarfs
Creators: name: Scheer, Manfred
name: Gremler, St.
name: Herrmann, E.
name: Dargatz, M.
name: Schädler, H.-D.
Publisher: name: Universität Regensburg
Year: 1993
Subjects: subject: Alkali metal-bis(trimethylsilyl)phosphides; iso-tetraphosphines; (PP) bond formation
subject: 540 Chemie

description: Durch Reaktion von MIP(SiMe3)2 (MI = Li, Na, K) mit Diorganochlorphosphanen werden die Tris(diorganylphosphano)phosphane P(PR2)3 (R = Cy, Ph, i-Pr, n-Pr, Et, Me) gebildet. Der 31P-NMR-spektroskopisch nachgewiesene stufenweise Aufbau über Di- und Triphosphane führt in allen Fällen zu in Lösung stabilen iso-Tetraphosphanen. Lediglich die Vertreter mit sterisch anspruchsvollen Resten (R = Cy, Ph) sind isolierbar. Über quantenchemische Berechnungen werden Aussagen zur pyramidalen Struktur dieser Verbindungen und ihres Reaktionsverhaltens möglich. In Übereinstimmung mit diesen Ergebnissen verlaufen orbitalkontrollierte Reaktionen, da der Angriff des Nucleophils (Cl-, MeO-) am zentralen Phosphoratom erfolgt.
The emotional component of insomnia disorder: A focus on emotion regulation and affect dynamics in relation to sleep quality and insomnia
Creators: name: Meneo, Debora
name: Samea, Fateme
name: Tahmasian, Masoud
name: Baglioni, Chiara
Publisher: name: Forschungzentrum Jülich
Year: 2023
Subjects: subject: 610

description: Journal of sleep research 32, e13983 (2023). doi:10.1111/jsr.13983
description: Theoretical models of insomnia disorder recognise an emotional component in the main-tenance of the disorder. Nonetheless, the field of emotions is vast and different pro-cesses are involved in psychological well-being. The present narrative review focusseson emotion regulation and affect dynamics, synthesising some of the most recent andrelevant evidence on emotions in relationto the quality of sleep and to insomnia disor-der. The literature underlines the close association between impaired sleep quality anddifficulties in regulating emotions. Impairedsleep quality is also associated with reducedpositive affect and increased negative affect,but little evidence supports a bi-directionalassociation between affective states and sleep. Affect variability in relation to sleep hasbeen less investigated. Initial evidence suggests that high variability in positive affect hasa negative impact on sleep. Neurobiological and behavioural evidence indicates thatinsomnia disorder is associated with emotion dysregulation, negative affect, and a dis-tinct daily profile of affective states. Moreresearch is needed on the affective experi-ence of patients with insomnia disorder, adopting multiple sampling of affect across theday and the week. Understanding how the unfolding of emotions over time interact withsleep alterations may help to improve the tailoring and monitoring of treatments addres-sing disturbed emotional processes in insomnia disorder.
description: Published by Wiley-Blackwell, Oxford [u.a.]