cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Semigroup Representations of the Poincare Group and Relativistic Gamow Vectors
Creators: name: Bohm, A.
name: Kaldass, H.
name: Wickramasekara, S.
name: Kielanowski, P.
Publisher: name: arXiv
Year: 1999
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Gamow vectors are generalized eigenvectors (kets) of self-adjoint Hamiltonians with complex eigenvalues $(E_{R}\mp iΓ/2)$ describing quasistable states. In the relativistic domain this leads to Poincaré semigroup representations which are characterized by spin $j$ and by complex invariant mass square ${\mathsf{s}}={\mathsf{s}}_{R}=(M_{R}-\frac{i}{2}Γ_{R})^{2}$. Relativistic Gamow kets have all the properties required to describe relativistic resonances and quasistable particles with resonance mass $M_{R}$ and lifetime $\hbar/Γ_{R}$.
description: 8 pages, revtex
Brownian motion in fluctuating periodic potentials
Creators: name: Abad, Enrique
name: Mielke, Andreas
Publisher: name: arXiv
Year: 1998
Subjects: subject: Condensed Matter (cond-mat)
subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Physical sciences

description: This work deals with the overdamped motion of a particle in a fluctuating one-dimensional periodic potential. If the potential has no inversion symmetry and its fluctuations are asymmetric and correlated in time, a net flow can be generated at finite temperatures. We present results for the stationary current for the case of a piecewise linear potential, especially for potentials being close to the case with inversion symmetry. The aim is to study the stationary current as a function of the potential. Depending on the form of the potential, the current changes sign once or even twice as a function of the correlation time of the potential fluctuations. To explain these current reversals, several mechanisms are proposed. Finally, we discuss to what extent the model is useful to understand the motion of biomolecular motors.
description: 15 pages, 8 eps-figures, uses epsfig.sty. Accepted for publication in Ann. Physik (Leipzig)
Forest surface soil management from textbook to operations
Creators: name: Mackenzie, Dean
Publisher: name: The University of British Columbia
Year: 2023

description: Conservation of forest surface soil is critical for development of self-sustaining forest ecosystems on post-mined land. Salvaging the surface soil from upland boreal forests received little attention in the past and was often not required. Research has shown forest surface soil provides an economical, diverse and abundant source of native propagules and an important source of nutrients and soil fauna. Salvage depth affects soil quality and potential for in situ propagules to emerge. Salvaging too deep will dilute the propagule and organic matter content of the forest floor with underlying mineral soil; however, salvaging too shallow may not provide sufficient root to soil contact for successful emergence of vegetative propagules. Optimal salvage depth is impacted by various factors such as soil texture, donor source location and reclamation objectives. Salvaged surface soil should be directly placed if native vegetation establishment is desired, as stockpiling surface soil for even short periods of time reduces viability of most boreal plant species and causes substantial changes to soil chemical properties. Viability of seeds within stockpiles can be managed in the short term by altering stockpile size and timing of construction. Optimal placement depth and distribution of surface soil is also dependent on many factors including salvage depth, substrate quality and reclamation objectives. Data from field research at operational and plot scales are presented to support best practices. Various adaptive management practices developed from theory, research and operations to help reduce negative impacts on soil quality and viability of native propagules are discussed.
title: Проектная деятельность по математике. Математический анализ
title: Учебное пособие для СПО
titleType: Subtitle
Creators: name: Богун В.В.
Publisher: name: Профобразование, Ай Пи Ар Медиа
Year: 2020

description: В учебном пособии представлено описание дистанционных динамических расчетных проектов по использованию численных методов при исследовании функций вещественного переменного в рамках разработанной автором информационной системы. В каждом расчетном проекте представлен теоретический аспект с применением математических выкладок, а также демоверсия расчетного проекта, в которой осуществляется генерирование и представление значений исходных данных, промежуточных и итоговых результатов проекта в автоматическом режиме. Подготовлено с учетом требований Федерального государственного образовательного стандарта среднего профессионального образования. Предназначено для студентов всех специальностей и профессий среднего профессионального образования, изучающих дисциплины «Математика», «Математика: алгебра и начала математического анализа, геометрия», а также для обучающихся по дистанционным программам.
Transformation of the singular skeleton in optical-vortex beams diffracted by a rectilinear phase step
Creators: name: Bekshaev, Aleksandr
name: Khoroshun, Anna
name: Mikhaylovskaya, Lidiya
Publisher: name: arXiv
Year: 2019
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Based on the Kirchhoff-Fresnel approximation, we numerically analyze spatial characteristics of the light field formed after a circular Laguerre-Gaussian beam with a single-charged optical vortex (OV) passes the transparent screen with a rectilinear phase step. The main attention is paid to the localization and interactions of the OVs, which form the singular skeleton of the transformed field. The phase-step influence depends on its value and position with respect to the beam axis. Upon "weak perturbation" (low phase step) the main effect is that the OV is shifted from the initial axial position and describes a closed loop when the phase step is monotonously translated across the beam. The "strong perturbation" (the phase step is close to pi) induces topological reactions with emergence and annihilation of additional singularities in the near-axial region of the diffracted beam cross section. These features are interpreted based on the 3D OV trajectories that show an intricate behavior with kinks and "retrograde" segments. The details of the OV migration and singular skeleton transformations reveal the fundamental helical nature and transverse energy circulation in the OV beams. The numerical results obtained in this paper show possibilities for the purposeful control of the singular skeleton characteristics within the transformed beam, and can be useful for the OV diagnostics, OV metrology and micromanipulation techniques.
description: 30 pages including 9 figures, 1 appendix, and figure captions on 2 pages
Electronic structure and the Fermi surface of UTGa_{5} (T=Fe, Co, Rh)
Creators: name: Maehira, T.
name: Higuchi, M.
name: Hasegawa, A.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The relativistic energy-band calculations have been carried out for UFeGa_{5}, UCoGa_{5} and URhGa_{5} under the assumption that 5f-electrons are itinerant. A hybridization between the U 5f state and Ga 4p state occurs in the vicinity of the Fermi level. The Fermi surface of UCoGa_{5} is quite similar to that of URhGa_{5}, which are all small in size and closed in topology. UFeGa_{5} has the quasi-two-dimensional Fermi surface which looks like a lattice structure.
description: 2 pages, 3 figures, LT23auth.cls, elsart.cls. submitted to conference LT23
Massive scalar field near a cosmic string
Creators: name: Iellici, Devis
Publisher: name: arXiv
Year: 1997
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The $ζ$ function of a massive scalar field near a cosmic string is computed and then employed to find the vacuum fluctuation of the field. The vacuum expectation value of the energy-momentum tensor is also computed using a point-splitting approach. The obtained results could be useful also for the case of self-interacting scalar fields and for the finite-temperature Rindler space theory.
description: 15 pages, standard LaTeX, no figures. Reference [14] corrected
Rhodium(III)-catalyzed Difunctionalization of Alkenes Initiated by Carbon–Hydrogen Bond Activation
Creators: Phipps, Erik Johann Thorngren
Publisher: name: Columbia University
Year: 2021
Subjects: Chemistry, Organic
Chemistry
Rhodium
Ligand binding (Biochemistry)
Cyclopropane
Allyl alcohol
Alkenes

description: The direct conversion of carbon–hydrogen bonds into valuable carbon-carbon and carbon-heteroatom bonds is a significant challenge to synthetic organic chemists. More than ever, chemists are employing Rh(III)-catalysts bearing cyclopentadienyl (Cp) ligands to transform otherwise inert C–H bonds. Furthermore, manipulating the sterics and electronics of the Cp ligand show significant impact on catalytic transformations. Our group has developed a library of CpˣRh(III)-precatalysts in hopes of enhancing known reactivity as well as discovering new C–H bond functionalizations. We have previously reported that N-enoxyphthalimides are a unique one-carbon component for the cyclopropanation of activated alkenes. In an effort to expand the scope to accessible alkenes, we have found a number of symmetrical unactivated alkenes undergo [2+1] annulation to afford intriguing spirocyclic cyclopropanes. Additionally, we have developed a Rh(III)-catalyzed diastereoselective [2+1] annulation onto allylic alcohols to furnish substituted cyclopropyl ketones. Notably, the traceless oxyphthalimide handle serves three functions: directing C–H activation, oxidation of Rh(III), and, collectively with the allylic alcohol, in directing cyclopropanation to control diastereoselectivity. Allylic alcohols are shown to be highly reactive olefin coupling partners leading to a directed diastereoselective cyclopropanation reaction, providing products not accessible by other routes. Next, an artifact of previous cyclopropanation reactions leads to the formation of a Rh-π-allyl complex. Attempts at 1,1-carboamination of alkenes are made using alkenes and nitrenoid precursors toward the 3-component synthesis of allylic amines. Stoichiometric studies help elucidate the mechanism and challenges. Lastly, efforts toward 1,2-carboamination of alkenes initiated by sp³ C–H bond activation are made with two different reactivity manifolds. Isolation of reaction intermediates are discussed as well as providing viable paths toward valuable products.
Calodendrum capense Thunb.
Creators: name: Zhou, Ya-Dong
name: Mwachala, Geoffrey
name: Hu, Guang-Wan
name: Wang, Qing-Feng
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Sapindales
Rutaceae
Calodendrum
Calodendrum capense

description: Calodendrum capense Thunb.  —
Habit: Tree.
Habitat: LMWF, LMDF; up to 2 200 m. Distribution: II.
 Voucher: Meru Forest to Lower Imenti Forest, Alt. 1 795 m, 8 Aug. 2015, SAJIT 003855 (HIB).
References: Fries (1923b), Bussmann (1994), Bussmann & Beck (1995a).
description: Published as part of Zhou, Ya-Dong, Mwachala, Geoffrey, Hu, Guang-Wan & Wang, Qing-Feng, 2022, Annotated checklist of the vascular plants of Mount Kenya, East Africa, pp. 1-108 in Phytotaxa 546 (1) on page 60, DOI: 10.11646/phytotaxa.546.1.1, http://zenodo.org/record/6550464
title: Сетевые технологии. Организация интерактивности в рамках статических Интернет-сайтов
title: Учебное пособие
titleType: Subtitle
Creators: name: Богун В.В.
Publisher: name: Ай Пи Ар Медиа
Year: 2020

description: В предлагаемом учебном пособии представлена реализация различных алгоритмов обработки форм статических Интернет-страниц с использованием языка сценариев JavaScript на основе применения одномерных и двумерных массивов для хранения значений компонентов исходных данных в сопровождении необходимых комментариев. Для реализации самостоятельной деятельности студентов в рамках аудиторных практических занятий или при организации внеуадиторной деятельности представлены варианты заданий, в которых показаны основные составляющие макетов необходимых форм Интернет-страниц с произвольным выбором тематики задания. Подготовлено с учетом требований Федерального государственного образовательного стандарта высшего образования. Учебное пособие предназначено для студентов, обучающихся по направлениям подготовки 01.03.02 «Прикладная математика и информатика», 02.03.03 «Математическое администрирование информационных систем», изучающих дисциплину «Сетевые технологии». Будет также полезно при изучении дисциплин «Информатика», «Информационные технологии», «Алгоритмизация и программирование». Может использоваться преподавателями и студентами различных направлений бакалавриата, изучающими применение информационных технологий в профессиональной деятельности с точки зрения обработки информации в рамках статических Интернет-страниц с применением форм.
Rhythm in Some 20th-Century Classical Music Sounds Different Depending on How You Move
Creators: Fort, Anthony James
Publisher: name: Columbia University
Year: 2020
Subjects: Music theory
Musical meter and rhythm
Twentieth century
Music--Philosophy and aesthetics
Music--Physiological effect

description: I study certain passages of music for which I struggle to perceive a clear rhythm. I attribute this difficulty to an inability to infer or impose a beat. I show how, by listening to these “vague” rhythms repeatedly, I have been able to use movement to impose my own beat onto the auditory surface, and, by doing so, hear the rhythm with more clarity. What’s more, I show how I have been able to impose different beats on different listening occasions, and, as a result, hear different rhythms. I share my experience by presenting videos in which I move to the same music in different ways, priming the listener to have different rhythmic experiences depending on which video is being viewed. I discuss the techniques used to create these effects, as well as the features of the acoustic signal which make this kind of manipulation possible. In light of these discussions, and in dialogue with the work of other theorists, I examine certain issues of music cognition and music aesthetics, including the issue of musical “complexity”. I finish by considering whether the experience of rhythm could be manipulated to an even greater degree, and, to that end, present the “even-note illusion”, which uses a click-track to remove the lilt from a non-periodic stimulus.
title: Исследование равнобедренных треугольников с применением информационных технологий
title: Монография
titleType: Subtitle
Creators: name: Богун В.В.
Publisher: name: Ай Пи Ар Медиа
Year: 2020

description: В монографии представлен тригонометрический анализ равнобедренных треугольников и правильных четырехугольных пирамид с применением различных информационных технологий. Приведено детальное описание необходимых математических аспектов с точки зрения нахождения пропорциональных зависимостей между линейными элементами рассматриваемых фигур и программного обеспечения для проведения соответствующих исследований на графическом калькуляторе и персональном компьютере на локальном и сетевом уровнях. Рассмотрено применение математических и информационных составляющих для исследования золотой пропорции и геометрических свойств пирамид Хеопса, Хефрена и Микерина в Египте. Монография будет полезна учителям и преподавателям математики и информатики в школе и в вузе, а также студентам, изучающим математику и применение информационных технологий для решения задач по геометрии тригонометрическими методами.
Additional file 2: of Who provides care in the last year of life? A description of care networks of community-dwelling older adults in the Netherlands
Creators: name: Bijnsdorp, Femmy
name: H. Pasman
name: Francke, Anneke
name: Evans, Natalie
name: Peeters, Carel
name: Groenou, Marjolein Broese Van
Publisher: name: figshare
Year: 2019
Subjects: subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Science Policy

description: Latent class solution. (DOCX 14 kb)
On a filtered multiplicative basis of group algebras
Creators: name: Bovdi, Victor
Publisher: name: arXiv
Year: 2000
Subjects: subject: Rings and Algebras (math.RA)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: Primary 1646A, 16A26, 20C05. Secondary 19A22

description: Let $K$ be a field of characteristic $p$ and $G$ a nonabelian metacyclic finite $p$-group. We give an explicit list of all metacyclic $p$-groups $G$, such that the group algebra $KG$ over a field of characteristic $p$ has a filtered multiplicative $K$-basis. We also present an example of a non-metacyclic 2-group $G$, such that the group algebra $KG$ over any field of characteristic 2 has a filtered multiplicative $K$-basis.
description: 10 pages, AMS-TeX
Hibiscus cannabinus L.
Creators: name: Zhou, Ya-Dong
name: Mwachala, Geoffrey
name: Hu, Guang-Wan
name: Wang, Qing-Feng
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Malvales
Malvaceae
Hibiscus
Hibiscus cannabinus

description: Hibiscus cannabinus L.  —
Habit: Herb.
Habitat: LMWF, LMDF; up to 2 600 m. Distribution: I.
 Voucher: Lower Imenti Forest, Alt. 1 379 m, 8 Aug. 2015, SAJIT 003866 (HIB).
Reference: Agnew (2013).
description: Published as part of Zhou, Ya-Dong, Mwachala, Geoffrey, Hu, Guang-Wan & Wang, Qing-Feng, 2022, Annotated checklist of the vascular plants of Mount Kenya, East Africa, pp. 1-108 in Phytotaxa 546 (1) on page 62, DOI: 10.11646/phytotaxa.546.1.1, http://zenodo.org/record/6550464
Additional file 1: of Who provides care in the last year of life? A description of care networks of community-dwelling older adults in the Netherlands
Creators: name: Bijnsdorp, Femmy
name: H. Pasman
name: Francke, Anneke
name: Evans, Natalie
name: Peeters, Carel
name: Groenou, Marjolein Broese Van
Publisher: name: figshare
Year: 2019
Subjects: subject: Ecology
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Science Policy

description: The numbers of respondents per wave in the final sample. (DOCX 12 kb)
Dombeya torrida Bamps
Creators: name: Zhou, Ya-Dong
name: Mwachala, Geoffrey
name: Hu, Guang-Wan
name: Wang, Qing-Feng
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Malvales
Malvaceae
Dombeya
Dombeya torrida

description: Dombeya torrida (J.F.Gmel.) Bamps  —
Habit: Tree.
Habitat: LMWF, LMDF; 2 000–3 100 m. Distribution: I.
 Voucher: South Mount Kenya, Alt. 2 134 m, Porter 817 (EA).
References: Fries & Fries (1929), Bussmann (1993, 1994, 2001), Bussmann & Beck (1995a, 1998, 1999).
description: Published as part of Zhou, Ya-Dong, Mwachala, Geoffrey, Hu, Guang-Wan & Wang, Qing-Feng, 2022, Annotated checklist of the vascular plants of Mount Kenya, East Africa, pp. 1-108 in Phytotaxa 546 (1) on page 61, DOI: 10.11646/phytotaxa.546.1.1, http://zenodo.org/record/6550464
Anomalous scaling in passive scalar advection: Monte-Carlo Lagrangian trajectories
Creators: name: Gat, Omri
name: Procaccia, Itamar
name: Zeitak, Reuven
Publisher: name: arXiv
Year: 1998
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: We present a numerical method which is used to calculate anomalous scaling exponents of structure functions in the Kraichnan passive scalar advection model (R. H. Kraichnan, Phys. Fluids {\bf11}, 945 (1968)). This Monte-Carlo method, which is applicable in any space dimension, is based on the Lagrangian path interpretation of passive scalar dynamics, and uses the recently discovered equivalence between scaling exponents of structure functions and relaxation rates in the stochastic shape dynamics of groups of Lagrangian particles. We calculate third and fourth order anomalous exponents for several dimensions, comparing with the predictions of perturbative calculations in large dimensions. We find that Kraichnan's closure appears to give results in close agreement with the numerics. The third order exponents are compatible with our own previous nonperturbative calculations.
description: 5 pages, 4 figures
Composite spin and orbital triplet superconductivity
Creators: name: Anders, Frithjof B.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We show that the two-channel Anderson lattice model leads to the development of an unconventional superconductivity out of a metallic non Fermi-liquid phase. It is characterized by a composite order parameter comprising of a local spin or orbital degree of freedom bound to triplet Cooper pairs with an isotropic and a nearest neighbour form factor. The superconducting transition temperature is band filling dependent and peaks for half filling in the extrem intermediate valence regime and vanishes at integral valence. The gap function is non analytic and odd in frequency, and a pseudo-gap develops in the conduction electron density of states which vanishes as |omega| close to omega=0.
description: 3 pages, 1 figure
Additional file 1 of Change in quality of life over eight years in a nationally representative sample of US adults with heart disease and type 2 diabetes:minority race and toxic stress as keysocial determinants
Creators: name: Nkwata, Allan K.
name: Song, Xiao
name: Zhang, Ming
name: Ezeamama, Amara. E.
Publisher: name: figshare
Year: 2020
Subjects: Chemical Sciences not elsewhere classified
Biological Sciences not elsewhere classified
Science Policy
Mental Health

description: Additional file 1.
Variational representations of Varadhan Functionals
Creators: name: Bell, H.
name: Bryc, W.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Probability (math.PR)
subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: 60F10

description: Motivated by the theory of large deviations, we introduce a class of non-negative non-linear functionals that have a variational "rate function" representation.
description: LaTeX, 6 pages
Riot: Community Organizations and Public Communication Following Crown Heights and Tompkins Square
Creators: McGrory, Madeleine
Publisher: name: Columbia University
Year: 2017
Subjects: City planning
Riots
Community organization
Social conflict

description: This is a qualitative study of the extent to which community organizations reclaimed public space in the face of community conflict and the mechanisms by which they did so, in the case of the Crown Heights and Tompkins Square Park riots. Six community organizers, activists and residents took part in semi-structured interviews regarding safety, ownership, public space and community organizations in their neighborhoods. Media in the form of newspaper articles and op-ed’s were also utilized to gauge the public discourse surrounding the riots and how the communities were able to represent themselves. The research uses a communicative planning theory approach to the issues of conflict and community organizing, and exposes opportunities planners can take advantage of in order to assist communities in representing themselves and minimizing conflict.
Implications for New Physics in $b\to s μμ$ transitions after recent measurements by Belle and LHCb
Creators: name: Kowalska, Kamila
name: Kumar, Dinesh
name: Sessolo, Enrico Maria
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present a Bayesian analysis of the implications for new physics in semileptonic $b\to s$ transitions after including new measurements of $R_K$ at LHCb and new determinations of $R_{K^*}$ and $R_{K^{*+}}$ at Belle. We perform global fits with 1, 2, 4, and 8 input Wilson coefficients, plus one CKM nuisance parameter to take into account uncertainties that are not factorizable. We infer the 68% and 95.4% credibility regions of the marginalized posterior probability density for all scenarios and perform comparisons of models in pairs by calculating the Bayes factor given a common data set. We then proceed to analyzing a few well known BSM models that can provide a high energy framework for the EFT analysis. These include the exchange of a heavy $Z^{'}$ boson in models with heavy vector-like fermions and a scalar field, and a model with scalar leptoquarks. We provide predictions for the BSM couplings and expected mass values.
description: 22 pages, 6 figures, 23 tables. v3: Minor modifications to the text, references added. Published version
title: Численные методы. Исследование функций вещественного переменного с применением программ для ЭВМ
title: Практикум
titleType: Subtitle
Creators: name: Богун В.В.
Publisher: name: Ай Пи Ар Медиа
Year: 2020

description: Предлагаемое издание представляет собой практикум по использованию численных методов при исследовании функций вещественного переменного с применением авторских программ для ЭВМ в сопровождении необходимых методических и дидактических аспектов реализации лабораторных работ. Каждая лабораторная работа включает теоретический аспект с описанием необходимых математических выкладок, методику проведения занятий и разработанные автором программы на ЭВМ с указанием инструкций для пользователя. Подготовлен с учетом требований Федерального государственного образовательного стандарта высшего образования. Предназначен для преподавателей и студентов университетов, изучающих применение численных методов для исследования функций вещественного переменного в курсах «Численные методы», «Математика», «Математический анализ» и ряде других учебных дисциплин.
title: Das Erfolgsgeheimnis des Internet
Creators: name: Piloty, Robert
Publisher: name: Cramer
Year: 2002
Subjects: subject: Brunsvicensien der Universitätsbibliothek Braunschweig
subject: Jahrbuch der BWG
subject: 00

description: Kaum eine technische Entwicklung der letzten Jahrzehnte hat die Lebens- und Arbeitsweisen der Menschen in aller Welt so schnell und nachhaltig beeinflußt wie die vom Internet gebotenen neuen Kommunikationsformen. Das Wachstum des Internet sucht in der Technik seinesgleichen. Waren es 1990 noch ca. 1 Million Nutzer, so sind es heute inzwischen ca. 600 Millionen. Ihre Zahl steigt immer noch expotentiell um etwa 70% pro Jahr. Das Internet ist zum Anlaß für einen grundlegenden Paradigmenwechsel für unser kulturelles, wirtschaftliches und privates Leben geworden. Nicht zuletzt auf seiner Grundlage haben die Begriffe der Wissensgesellschaft und Globalisierung ihre heutige Bedeutung erlangt. Die Medien sind voll mit Hinweisen auf das Internet. Jede Firma, die etwas auf sich hält, hat ihre Homepage bzw. Internetadresse, die das Publikum jederzeit "besuchen" kann. Die Suche nach IT Fachleuten mit der Green Card hat viel mit dem Internet zu tun. Werben, Einkaufen und Verkaufen über das Internet wird als die Geschäftsform der Zukunft angesehen. Auch die Politik mißt dem Internet größte Bedeutung zu. So kam sie auf dem G8 Treffen des Jahres 2000 zu dem Schluß, daß das 21.Jahrhundert entscheidend vom Internet geprägt sein wird.
All das unterstreicht, daß die Entwicklung des Internet ein unglaublicher Erfolg ist, den in seinen Anfängen wohl niemand in dem Umfang vorausgesehen hat.
title: Bild- und Toncodierung für die Multimedia-Kommunikation
Creators: name: Musmann, Hans
Publisher: name: Cramer
Year: 2002
Subjects: subject: Brunsvicensien der Universitätsbibliothek Braunschweig
subject: Jahrbuch der BWG
subject: 00

description: Das weltweite Internet ermöglicht in Zukunft nicht nur die Übertragung von Sprache, Texten und Textbildern, sondern auch von Bewegtbildern, Musik und sogar dreidimensionalen Informationen virtueller Objekte. Die elektrischen analogen Signale dieser Multimedia-Information müssen dazu in eine digitale Darstellung gewandelt werden.
Bild 1 veranschaulicht den Vorgang der Digitalisierung eines analogen zeitveränderlichen Signals. Das analoge Signale einer Nachricht wird dazu in äquidistanten Zeitabschnitten abgetastet. Die Amplitude eines jeden Abtastwertes entspricht der Lautstärke bei einem Sprachsignal bzw. Helligkeit eines Bildpunktes beim Fernsehsignal. Die Amplitude wird in Stufen quantisiert und jeder Stufe eine Dualzahl zugeordnet. Die Ziffern der Dualzahlen werden durch Binärsymbole 1 und 0 codiert. Verschiedene Nachrichtensignale können auf diese Weise in eine Folge von Binärsymbolen (bit) umgewandelt und aus dieser Folge auch wieder zurückgewonnen werden. Diese digitale Darstellungsform einer Nachricht wird als Pulscodemodulation (PCM) bezeichnet. Der besondere Vorzug der digitalen Darstellungsform liegt zum einen in der größeren erreichbaren Genauigkeit der Signaldarstellung und der damit verbundenen höheren Ton- und Bildqualität, wie sie beispielsweise von der Compact Disc her bekannt ist. Zum anderen erlaubt die binäre Darstellungsform, dass in Zukunft alle Nachrichtensignale über ein und dasselbe Nachrichtennetz übertragen und ein derartiges Netz somit für die Multimedia-Kommunikation verwendet werden kann.
Ein Problem bilden dabei Bewegtbildsignale wie das Fernsehsignal, da sie eine relativ große Übertragungsbitrate benötigen. Vergleichsweise erfordert die Übertragung eines Videosignals in TV-Auflösung mit 166 Mbit/s die Übertragungsrate von etwa 2500 Fernsprechsignalen von je 64 kbit/s und damit entsprechend hohe Übertragungskosten.
Für eine breite Anwendung der Multimedia-Kommunikation mussten daher zunächst effiziente Verfahren der datenreduzierenden Bild- und Toncodierung entwickelt werden. In den vergangenen Jahren wurden die ersten Codierungsverfahren von der International Standardization Organization (ISO) standardisiert.
Nachfolgend werden die Konzepte der standardisierten Audio- und Videocodierungen und die daraus hervorgegangenen neuen Kommunikationsdienste und Anwendungen kurz beschrieben. Abschließend wird ein Ausblick auf die laufenden Forschungsarbeiten und deren Anwendungen gegeben.
Excitations in the dilute A_L lattice model: E_6, E_7 and E_8 mass spectra
Creators: name: Batchelor, M. T.
name: Seaton, K. A.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Theory (hep-th)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: On the basis of features observed in the exact perturbation approach solution for the eigenspectrum of the dilute A_3 model, we propose expressions for excitations in the dilute A_4 and A_6 models. Principally, we require that these expressions satisfy the appropriate inversion relations. We demonstrate that they give the expected E_7 and E_6 mass spectra, and universal amplitudes, and agree with numerical expressions for the eigenvalues.
description: 16 pages, Latex, Elsevier style files
title: Neue Aspekte bei der Beurteilung kostennaher Wellentransformation und Energieumwandlung
Creators: name: Büsching, Fritz
Publisher: name: Universitätsbibliothek Braunschweig
Year: 1980
Subjects: subject: Wellentransformation
subject: Wellenstrahl
subject: Doppler-Effekt
subject: beschleunigtes Trägermedium
subject: Rotverschiebung
subject: wave transformation
subject: wave beam
subject: Doppler Principle
subject: accelerated current
subject: red shift
subject: frequency shift
subject: 62

description: Auswertungen von synchron aufgezeichneten Wellenaufzeichnungen, die im küstennahen Bereich vor der Insel SYLT vorgenommen wurden, haben sowohl im Zeitbereich als auch im Frequenzbereich u.a. auch das Ergebnis einer mit abnehmender Wassertiefe verbundenen Wellenperiodenzunahme gezeigt. Diese im Gegensatz zur üblichen Betrachtung der Wellenverformung stehende Erscheinung wird unter Bezugnahme auf das des DOPPLER-Prinzip und auf die Dispersionsrelation erster Ordnung als sogenannte "Rotverschiebung" erklärt. Zugleich liegt bezüglich der theoretischen Wellentransformation entlang eines "Wellenstrahls" eine anomale Dispersion vor. Frequenzverschiebungen können je nach überlagerter positiv oder negativ beschleunigter Strömungskomponente unterschiedliche Vorzeichen haben.
description: Steadily increasing wave periods in the up-beach direction (turning out from strip chart registrations) as well as a red shift (resulting from frequency domain evaluations) both are in accordance with a theoretical treatment of water wave transformation based on DOPPLER's principle due to superimposed accelerated current movement. As a consequence, with the water depth decreasing the transformation along a wave beam is associated with an anomalous dispersion relationship. Frequency shifts can be positive or negative due to the presence of positive or negative components of accelerated currents.
Risk Factors and Outcomes of Bloodstream Infection
Creators: Aliyu, Sainfer Elizabeth
Publisher: name: Columbia University
Year: 2017
Subjects: subject: Nursing
subject: FOS: Health sciences
subject: Nosocomial infections
subject: Blood--Diseases
subject: Health risk assessment

description: This dissertation examines risk factors and outcomes associated with bloodstream infection (BSI). In Chapter One, the problems of BSI are introduced and their significance described. In Chapter Two, the results of a systematic review and meta-analysis synthesizing the prevalence of one of the most rapidly emerging causes of BSI among nursing home residents, multidrug resistant-gram negative bacteria are described. In Chapter Three, a retrospective cohort study identifying the prevalence and risk factors for BSI present on hospital admission (POA) is reported, including an assessment of antimicrobial resistance in isolates causing BSI-POA by admission source (i.e. private homes, other hospitals and skilled nursing facilities). In Chapter Four, a retrospective cohort study explaining risks for hospital-associated infections (HAIs) among the BSI-POA cohort is described. Length of stay and mortality among patients with a BSI-POA who develop HAI and those who do not are reported. Finally, in Chapter Five, findings of the previous chapters are synthesized and the conclusion is provided including strengths, limitations and implications for policy and practice.
Soluzioni IIoT Data Driven
Creators: name: Borgia, Stefano
Publisher: name: Zenodo
Year: 2021

description: The technical paper provides a contribution about IIoT data-driven solutions supporting Zero Defect Manufacturing . Use of the data gathered from the machinery and manufacturing systems, and extraction of information and added value from them represent the key elements of the digitalization process promoted by Industry 4.0 and factors enabling rapid reaction to unexpected events occurring both at various levels (machine, factory, supply chain and value chain). Technologies in the fields of IIoT, Big Data and Artificial Intelligence enable the creation of new value starting from the data. According to the activities on-going in iQonic project, knowledge based system and new software functionalities enriching capabilities and performance of cloud data management solution allow the implementation of diagnostics and prognostics oriented to the concept of Zero Defect Manufacturing and Quality management. The article explains how software prototype solutions developed by Holonix in iQonic project (WP2 and T4.5) enable diagnostics and prognostics action oriented to Zero Defect Manufacturing and Quality management.
Instability of the rhodium magnetic moment as origin of the metamagnetic phase transition in alpha-FeRh
Creators: name: Gruner, M. E.
name: Hoffmann, E.
name: Entel, P.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Based on ab initio total energy calculations we show that two magnetic states of rhodium atoms together with competing ferromagnetic and antiferromagnetic exchange interactions are responsible for a temperature induced metamagnetic phase transition, which experimentally is observed for stoichiometric alpha-FeRh. A first-principle spin-based model allows to reproduce this first-order metamagnetic transition by means of Monte Carlo simulations. Further inclusion of spacial variation of exchange parameters leads to a realistic description of the experimental magneto-volume effects in alpha-FeRh.
description: 10 pages, 13 figures, accepted for publication in Phys. Rev. B
Engineering Fragile Topology in Photonic Crystals: Topological Quantum Chemistry of Light
Creators: name: de Paz, María Blanco
name: Vergniory, Maia G.
name: Bercioux, Dario
name: García-Etxarri, Aitzol
name: Bradlyn, Barry
Publisher: name: arXiv
Year: 2019
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: In recent years, there have been rapid advances in the parallel fields of electronic and photonic topological crystals. Topological photonic crystals in particular show promise for coherent transport of light and quantum information at macroscopic scales. In this work, we apply for the first time the recently developed theory of "Topological quantum chemistry" to the study of band structures in photonic crystals. This method allows us to design and diagnose topological photonic band structures using only group theory and linear algebra. As an example, we focus on a family of crystals formed by elliptical rods in a triangular lattice. We show that the symmetry of Bloch states in the Brillouin zone can determine the position of the localized photonic wave packets describing groups of bands. By modifying the crystal structure and inverting bands, we show how the centers of these wave packets can be moved between different positions in the unit cell. Finally, we show that for shapes of dielectric rods, there exist isolated topological bands which do not admit a well-localized description, representing the first physical instance of "fragile" topology in a truly noninteracting system. Our work demonstrates how photonic crystals are the natural platform for the future experimental investigation of fragile topological bands.
description: v1. 4 pages + references main text, 5+epsilon page supplementary material v2. Published version, 4pgs + references. Supplemental material available at https://doi.org/10.1103/PhysRevResearch.1.032005
Spikes in Quantum Regge Calculus
Creators: name: Ambjorn, J.
name: Nielsen, J.
name: Rolf, J.
name: Savvidy, G.
Publisher: name: arXiv
Year: 1997
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We demonstrate by explicit calculation of the DeWitt-like measure in two-dimensional quantum Regge gravity that it is highly non-local and that the average values of link lengths $l, $, do not exist for sufficient high powers of $n$. Thus the concept of length has no natural definition in this formalism and a generic manifold degenerates into spikes. This might explain the failure of quantum Regge calculus to reproduce the continuum results of two-dimensional quantum gravity. It points to severe problems for the Regge approach in higher dimensions.
description: 20 pages, Latex2e, 11 figures
title: Water wave transformation due to Doppler's principle
Creators: name: Büsching, Fritz
Publisher: name: Universitätsbibliothek Braunschweig
Year: 1979
Subjects: subject: Wellentransformation
subject: Wellenstrahl
subject: Doppler-Effekt
subject: beschleunigtes Trägermedium
subject: Rotverschiebung
subject: wave transformation
subject: wave beam
subject: Doppler Principle
subject: accelerated current
subject: red shift
subject: frequency shift
subject: 62

description: Steadily increasing wave periods in the up-beach direction (turning out from strip chart registrations) as well as a red shift (resulting from frequency domain evaluations) both are in accordance with a theoretical treatment of water wave transformation based on DOPPLER's principle due to superimposed accelerated current movement. As a consequence, with the water decreasing the transformation along a wave beam is associated with an anomalous dispersion relationship. 
Frequency shifts can be positive or negative due to the presence of positive or negative components of accelerated currents.
description: Auswertungen von synchron aufgezeichneten Wellenaufzeichnungen, die im küstennahen Bereich vor der Insel SYLT vorgenommen wurden, haben sowohl im Zeitbereich als auch im Frequenzbereich u.a. auch das Ergebnis einer mit abnehmender Wassertiefe verbundenen Wellenperiodenzunahme gezeigt. Diese im Gegensatz zur üblichen Betrachtung der Wellenverformung stehende Erscheinung wird unter Bezugnahme auf das des DOPPLER-Prinzip und auf die Dispersionsrelation erster Ordnung als sogenannte "Rotverschiebung" erklärt. 
Zugleich liegt bezüglich der theoretischen Wellentransformation entlang eines "Wellenstrahls" eine anomale Dispersion vor. 
Frequenzverschiebungen können je nach überlagerter positiv oder negativ beschleunigter Strömungskomponente unterschiedliche Vorzeichen haben.
Untersuchung des Bayerischen Landesamts für Gesundheit und Lebensmittelsicherheit zu Tuberkulose bei Asylbewerbern in Bayern
Creators: name: Ackermann, Nikolaus
name: Hierl, Eva
name: Schönberger, Katharina
name: Liebl, Bernhard
name: Sing, Andreas
Publisher: name: Robert Koch-Institut
Year: 2019
Subjects: subject: Tuberkulose
subject: Asylsuchende
subject: IfSG
subject: Screening
subject: Gemeinschaftsunterkunft
subject: 610 Medizin und Gesundheit

description: Die infektionshygienische Kontrolle bei der Unterbringung von Asylsuchenden und unbegleiteten Minderjährigen in Gemeinschaftsunterkünften ist eine wichtige Aufgabe des ÖGD. Laut Robert Koch-Institut zählt die Tuberkulose (TB) bei Asylsuchenden, neben Hepatitis B und Windpocken, zu den am häufigsten gemäß den §§ 6, 7 IfSG übermittelten meldepflichtigen Infektionskrankheiten. Die vorliegende Untersuchung, die im Epidemiologischen Bulletin 39/2019 vorgestellt wird, beschäftigt sich mit der Häufigkeit und dem Zeitpunkt der TB-Diagnose bei Asylsuchenden in Bayern und geht der Frage nach, wie effektiv das in Bayern etablierte TB-Screening-Verfahren ist.
Additional file 2: of Burkholderia thailandensis strain E555 is a surrogate for the investigation of Burkholderia pseudomallei replication and survival in macrophages
Creators: name: A. Kovacs-Simon
name: C. Hemsley
name: A. Scott
name: J. Prior
name: R. Titball
Publisher: name: figshare
Year: 2019
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Supplementary References. (DOCX 17 kb)
Emittance : transformation of an emittance through diﬀerent ion-optical systems
Creators: name: Michel, Corentin
Publisher: name: figshare
Year: 2021
Subjects: subject: 20299 Atomic, Molecular, Nuclear, Particle and Plasma Physics not elsewhere classified
subject: FOS: Physical sciences
subject: 20202 Nuclear Physics
subject: 110313 Nuclear Medicine
subject: FOS: Clinical medicine

description: The main objective of this internship is to study ion beams at the exit of the accelerator and their behaviour when they encounter optical elements that GANIL physicists use for their measurements in the DESIR experiment room.One part of the traineeship was focused on the assimilation of knowledge on the subject, particularly the notions of emissivity, TWISS parameters, transfer matrices and sigma matrices. Afterwards we were able to calculate the sigma output matrices of the beams as a function of the elements in its path : Drift, thin lens, Einzel lens, magnetic dipole, electrostatic quadrupole. We could then make combinations of these elements. After using these combinations and considering a viable approximation for the electrostatic quadrupole doublet, we were able to optimize the parameters to be applied to the latter in order to obtain the least divergent beam possible. Finally, we were able to study a system allowing to "suppress" the beam transfer distances by playing on the optical properties to transport a beam from a point A to a point B while keeping as much as possible of its starting speed.
Identifying synergies for passive treatment : integrating solar photocatalysis and biological systems
Creators: name: Martin, J.
name: Armstrong, K.
name: Leshuk, T. M. C.
name: Young, Z.
name: Gu, F.
Publisher: name: The University of British Columbia
Year: 2023

description: Conventionally, biological treatment processes are considered the best available technologies (BAT) for mine water remediation but suffer from numerous shortcomings, including toxic organometallic treatment by-products, large treatment footprint, and varying treatment consistencies. Biological systems can benefit from upstream or downstream synergistic processes that can improve treatment performance while addressing negative treatment by-products. To this end H2nanO has developed a passive advanced oxidation (P-AOP) treatment technology consisting of a system of buoyant photocatalyst composites that provides off-grid, high strength oxidative treatment without the need for chemical or electrical inputs. Upon exposure to naturally occurring solar or artificial ultraviolet (UV) light, the photocatalyst technology generates free radicals, including hydroxyl and superoxide. As the photocatalyst media is not consumed, it may be collected for reuse once treatment is complete (batch process) using low-energy flotation and skimming or used continuously in a flow-through system. This work presents results from bench-scale studies investigating the feasibility of solar photocatalysis for the passive co-treatment of dissolved manganese and molybdenum and for the oxidative treatment of trace reduced selenium and organoselenium compounds; and provides insights into the enhancement of biological remediation processes through synergies with solar photocatalysis. As a standalone process or as part of a larger water management program, photocatalysis is a promising passive treatment technology for mine water remediation.