cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Modeling the X-ray light curves of Cygnus X-3. Possible role of the jet
Creators: name: Vilhu, Osmi
name: Hannikainen, Diana Carina
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Context: Physics behind the soft X-ray light curve asymmetries in Cygnus X-3, a well-known microquasar, was studied. AIMS: Observable effects of the jet close to the line-of-sight were investigated and interpreted within the frame of light curve physics. METHODS: The path of a hypothetical imprint of the jet, advected by the WR-wind, was computed and its crossing with the line-of-sight during the binary orbit determined. We explore the possibility that physically this 'imprint' is a formation of dense clumps triggered by jet bow shocks in the wind ("clumpy trail"). Models for X-ray continuum and emission line light curves were constructed using two absorbers: mass columns along the line-of-sight of i) the WR wind and ii) the clumpy trail, as seen from the compact star. These model light curves were compared with the observed ones from the RXTE/ASM (continuum) and Chandra/HETG (emission lines). Results: We show that the shapes of the Cygnus X-3 light curves can be explained by the two absorbers using the inclination and true anomaly angles of the jet as derived in Dubus et al. (2010) from gamma-ray Fermi/LAT observations. The clumpy trail absorber is much larger for the lines than for the continuum. We suggest that the clumpy trail is a mixture of equilibrium and hot (shock heated) clumps. Conclusions: A possible way for studying jets in binary stars when the jet axis and the line-of-sight are close to each other is demonstrated. The X-ray continuum and emission line light curves of Cygnus X-3 can be explained by two absorbers: the WR companion wind plus an absorber lying in the jet path (clumpy trail). We propose that the clumpy trail absorber is due to dense clumps triggered by jet bow shocks.
description: 7 pages, 8 figures, Accepted for publication in Astronomy and Astrophysics 16.12.2012
Investigations on graphene platelets as dry lubricant and as grease additive for sliding contacts and rolling bearing application
Creators: name: Pape, Florian
name: Poll, Gerhard
Publisher: name: Basel : MDPI AG
Year: 2020
Subjects: subject: Dry lubrication
subject: Graphene
subject: Grease lubrication
subject: Nano particles
subject: Rolling contact
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: In recent years, graphene-based lubrication was in the focus of nano-and microtribological studies. While the sliding properties of graphene based dry lubrication were previously investigated on the nano-and micro-scale, few studies can be found in the literature for the application of graphene as an additive to oil and grease in rolling contacts. In order to apply graphene platelets as dry lubricants and as grease additives in machine elements, tests were carried out on a rolling bearing test rig under typical load conditions. For these investigations, multilayer graphene platelets of varied staple thickness were functionalized on angular contact ball bearing surfaces as a dry lubricant, which forms a thin film. In addition, bearings were lubricated with grease containing graphene platelets. In this case, a small ratio of graphene was dispersed with grease. The graphene platelets were divided into three groups of dierent thickness: 2 nm, 6-8 nm, and 11-15 nm. Additionally, the tests were compared to graphite nanoparticles (spheres with a size of 3-4 nm) as dry lubricant and graphite-containing grease. The experimental studies were carried out under oscillating motion. The respective load in the tribological contact was 1.5 GPa. During the tests, the pivoting angle was measured by utilizing a rotary encoder. In addition, the friction torque was recorded under a frequency of 0.2 Hz. As the balls' velocity at the reversal point is zero, the lubrication conditions are critical. The dry lubricated bearings were compared to grease lubricated bearings. Additionally, the frictional properties of the respective greases were investigated by applying a sliding tribometer. In this case, a ball rotates against three contact planes, which causes a tribological contact under a contact pressure of 1 GPa. It was shown that applying graphene as a dry lubricant and as a grease additive under rolling contact conditions reduces friction significantly. © 2019 by the authors.
title: The Factors Behind a Successful Implementation of Electronic Health Records Systems
Creators: name: Gorkhali, Anjee
Publisher: name: Old Dominion University Libraries
Year: 2012

description: This research explores the role that budget for Information System (IS) and technical expertise of healthcare service provider staff play on the successful leap from a partial to exhaustive implementation of Electronic Health Records (EHR) Systems. Technical expertise in Information Systems might not be easily measurable directly, but there are a number of indicators that could be used as a proxy, such as: Information System (IS) Department Budget, number of IS staff and the extent of technical trainings provided by the IS department to the clinical staff. This research study hypothesizes that quality technical trainings conducted by an IS department will help to significantly increase the success of EHR implementation. The budget allocated for the IS department plays a crucial role in determining the quality of this training. Furthermore, the number of IS staff employed by the department will help support clinical staff, which in tum is expected to support their performance.

A regression model is proposed to test the hypotheses presented above. The result of this regression analysis will be used to explain the relationship between the factors related to the investment in IS infrastructure and training and ability to implement EHR systems.
FCA - An Approach On LEACH Protocol Of Wireless Sensor Networks Using Fuzzy Logic
Creators: name: Godbole, Vaibhav
Publisher: name: arXiv
Year: 2013
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: In order to gather information more efficiently, wireless sensor networks are partitioned into clusters. The most of the proposed clustering algorithms do not consider the location of the base station. This situation causes hot spots problem in multi-hop wireless sensor networks. In this paper, we propose a fuzzy clustering algorithm (FCA) which aims to prolong the lifetime of wireless sensor networks. FCA adjusts the cluster-head radius considering the residual energy and the distance to the base station parameters of the sensor nodes. This helps decreasing the intra-cluster work of the sensor nodes which are closer to the base station or have lower battery level. We utilize fuzzy logic for handling the uncertainties in cluster-head radius estimation. We compare our algorithm with LEACH according to first node dies, half of the nodes alive and energy-efficiency metrics. Our simulation results show that FCA performs better than other algorithms in most of the cases. Therefore, our proposed algorithm is a stable and energy-efficient clustering algorithm.
description: This paper is withdrawn due to mistakes in the figure captions
Alpha-diversity processes and normalized inverse-Gaussian diffusions
Creators: name: Ruggiero, Matteo
name: Walker, Stephen G.
name: Favaro, Stefano
Publisher: name: arXiv
Year: 2013
Subjects: subject: Probability (math.PR)
subject: Statistics Theory (math.ST)
subject: FOS: Mathematics

description: The infinitely-many-neutral-alleles model has recently been extended to a class of diffusion processes associated with Gibbs partitions of two-parameter Poisson-Dirichlet type. This paper introduces a family of infinite-dimensional diffusions associated with a different subclass of Gibbs partitions, induced by normalized inverse-Gaussian random probability measures. Such diffusions describe the evolution of the frequencies of infinitely-many types together with the dynamics of the time-varying mutation rate, which is driven by an alpha-diversity diffusion. Constructed as a dynamic version, relative to this framework, of the corresponding notion for Gibbs partitions, the latter is explicitly derived from an underlying population model and shown to coincide, in a special case, with the diffusion approximation of a critical Galton-Watson branching process. The class of infinite-dimensional processes is characterized in terms of its infinitesimal generator on an appropriate domain, and shown to be the limit in distribution of a certain sequence of Feller diffusions with finitely-many types. Moreover, a discrete representation is provided by means of appropriately transformed Moran-type particle processes, where the particles are samples from a normalized inverse-Gaussian random probability measure. The relationship between the limit diffusion and the two-parameter model is also discussed.
description: Published in at http://dx.doi.org/10.1214/12-AAP846 the Annals of Applied Probability (http://www.imstat.org/aap/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Sedum acre L.
Creators: name: Becherer
Publisher: name: Zenodo
Year: 1956
Subjects: Biodiversity
Taxonomy

description: S. acre L. Cat. 151. l: Sex du Coeur, 2000m (J.); Vernayaz (Coquoz); Martigny-Croix (Closuit). - 3: Ob St-Luc, 1800 m (Bär); Törbel (Stehler); Zermatt, bei der Kirche, wahrscheinlich eingeführt (Thellung 1919). -4:Binn(Binz).
description: Published as part of Becherer, 1956, Florae Vallesiacae Supplementum, pp. 1-556 in Denkschriften der Schweizerischen Naturforschenden Gesellschaft 71 on pages 1-556
THE ECHO OF MURMURS: THE EXPERIENCE OF BLACK AND BROWN MALE EDUCATORS IN COMMUNITY COLLEGES
Creators: name: Gómez, Francisco
Publisher: name: Zenodo
Year: 2022
Subjects: identity
alienation
hostility
exhaustion

description: The purpose of this qualitative narrative research design study was to explore how Black, and Brown male full-time faculty described their experiences in a predominantly White academic department, and how they specifically described the experience of navigating a workplace – a community college campus. Twelve Black and Brown male, full-time Southern California community college professors participated in this study via one-on-one unstructured interviews. For this study and the anonymity of the participants, the men of the sample came from two schools. Suburb View Community College is in a suburb that is a mid to high socio-economic setting. City View Community College is in a bustling city with a largely lower socio-economic population. The findings indicated the same four themes – identity, alienation, hostility, and exhaustion – applied across both campuses and among both groups of male professors; however, the effects of alienation, hostility, and exhaustion decreased the closer the participants were to White, as self-reported and observed. The study concluded with recommendations to lessen the effects of alienation, hostility, and exhaustion for Black and Brown full-time male professors who teach in predominately White academic subject matter departments throughout California community colleges.
title: Uncertainty Assessment of Aircraft Maintenance Times by Using Evidence Theory and Expert Judgment Elicitation
Creators: name: Kudak, Huseyin
Publisher: name: Old Dominion University Libraries
Year: 2008

description: The goal of this study is to demonstrate the use of the Dempster-Shafer Theory of evidence as a decision aid to predict aircraft maintenance times during wartime operations using expert judgment elicitation. Increased precision in time estimation enables the jet engine aircraft maintenance facility commander to make more accurate decisions for the Air Force's wartime tactical operations allowing the commander to gain a decisive advantage. A questionnaire was designed to elicit judgments from experts in the Aircraft Maintenance Facility (AMF) to investigate maintenance times of the major failure modes (Ignition, Fuel, and Electrical). Results of the expert judgment elicitation were utilized through an application of the Dempster-Shafer Theory. This approach was presented as a plausible evidence combination technique when uncertain, incomplete, and potentially incorrect evidence needs to be assessed in a wartime environment. A decision aid that allowed comparison of each expert's assessment based on the Dempster-Shafer Theory was created, and an uncertainty assessment was discussed. An example showcasing two jet engine aircraft failures with both aleatory and epistemic uncertainty was presented to demonstrate use of the developed approach during wartime operations. The results of this methodology provide a useful and specific application area for the Dempster-Shafer Theory in the AMF to aid a decision maker in assessing the level of an expert's uncertainty.
Natürliche Radionuklide in der Umwelt : Vorkommen, anthropogene Einflüsse und radiologische Relevanz in ausgewählten Bergbaugebieten Deutschlands
Creators: name: Ritzel, Stefan
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2008
Subjects: subject: Strahlenexposition
subject: natürliche Radionuklide
subject: Hinterlassenschaften
subject: Uranbergbau
subject: Steinkohlenbergbau
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: [no abstract]
Designing Green Urban Carolina Childhoods: Theory and Practice
Creators: name: Moore, Robin C.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2010

description: With distant roots in work conducted when the author was an urban planning student, scientific research and design assistance in children’s environments continues through the Natural Learning Initiative, N.C. State University, in specific contexts, many of them educational. They include schools, children’s museums, zoos, botanical gardens, childcare centers, and neighborhood parks, playgrounds and pathways. Results are aimed at creating cost-effective demonstration sites that people can see and believe possible. The overall aim is to assemble the research evidence to influence built environment policy in favor of healthy child development – and thus the long-term health of all city inhabitants. An evidence-based, participatory community design approach utilizes the socio-ecological model and the concepts of territoriality, behavior setting, and affordance to create design programs that drive physical design. When successful, the process constitutes a dialectic that balances community change and continuity in a way that both builds culture and adapts to it. A number of past and current projects are profiled to illustrate the community design processes involved.
Planning the City in the New Economy: Comprehensive Planning in Austin, Texas
Creators: name: Schooler, Larry
name: Dugan, Matthew
name: Claxton, Gregory
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2015

description: Austin, TX, exemplifies many challenges in planning for fast-growing Sun Belt cities. The process to create the recently adopted Imagine Austin Comprehensive Plan shows the difficulty in matching the tools of traditional comprehensive plans with interrelated New Economy issues and best practices in community engagement.
REGLES D'HERITAGE ET CONFLITS FONCIERS INTRA-FAMILIAUX CHEZ LES ATCHAN (EBRIE)
Creators: name: DAGBÉ Ahodan Stéphane
name: KROUBO Kafé Guy Christian
Publisher: name: Zenodo
Year: 2023

description: En pays Atchan (Ebrié), la terre est un bien appartenant au clan et gérée par le chef du lignage. Cette règle vise à garantir la légitimité des droits ancestraux, empêchant tout individu de s'approprier le bien commun. L'Etat de Côte d'Ivoire, dans sa politique de gestion du foncier, a opté pour un pluralisme juridique impliquant à la fois un cadre légal et les pratiques coutumières. Toutefois, de plus en plus de transactions foncières chez les Atchan conduisent fréquemment à de fortes tensions intrafamiliales et intergénérationnelles. La présente étude a pour objectif d'identifier les facteurs des conflits fonciers intrafamiliaux chez les Ebrié. De façon précise, l'étude analyse l'impact des règles d'héritage foncier sur la gestion foncière familiale. L'enquête s'est déroulée dans trois (03) villages Atchan : Abadjin-Kouté, Songon Agban et Songon- Kassemblé avec 65 enquêtés comprenant, des responsables du foncier villageois, des chefs de familles et des membres de familles en conflit. Les résultats montrent que chez les Atchan, c'est la loi coutumière qui place l'usage et l'exploitation des terres lignagères sous l'autorité du chef de lignage qui prédomine sur les lois édictées par l'Etat. Cependant, dans un contexte de rareté de terres, le chef de lignage procède à une manipulation des règles d'héritage en matière de foncier au détriment des ayants droits, entrainant ainsi des conflits fonciers intrafamiliaux. Ces manipulations portent sur la rétention des informations sur le foncier familial, l'immatriculation des parcelles en son nom personnel ou aux noms de ses enfants et la vente illicite des parcelles de terre familiale dont il a la garde. Ces conflits entrainent des atteintes à l'intégrité physique, des divisions au sein des familles et accentuent l'insécurité foncière à Abidjan.
Black hole wind speeds and the M-sigma relation
Creators: name: McQuillin, Rachael C
name: McLaughlin, Dean E
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We derive an M_bh-sigma relation between supermassive black hole mass and stellar velocity dispersion in galaxy bulges, that results from self-regulated, energy-conserving feedback. The relation is of the form M_bh v_w \propto sigma^5, where v_w is the velocity of the wind driven by the black hole. We take a sample of quiescent early-type galaxies and bulges with measured black hole masses and velocity dispersions and use our model to infer the wind speeds they would have had during an active phase. This approach, in effect, translates the scatter in the observed M_bh-sigma relation into a distribution of v_w. There are some remarkable similarities between the distribution of black hole wind speeds that we obtain and the distributions of outflow speeds observed in local AGN, including a comparable median of v_w = 0.035 c.
description: 8 pages, 4 figures. Accepted for publication in MNRAS
Italienische "Gastarbeiter" für die Landwirtschaft : Verlauf und Strukturen der Beschäftigung italienischer Landarbeiter im nordöstlichen Niedersachsen 1955-1973 : eine Konfliktanalyse
Creators: name: Machini-Warnecke, Gabriella
Publisher: name: Hannover : Institutionelles Repositorium der Leibniz Universität Hannover
Year: 2020
Subjects: subject: italienische Gastarbeiter
subject: Saisonarbeiter
subject: Arbeitsmigration
subject: Landwirtschaft
subject: Strukturwandel
subject: Niedersachsen
subject: Dewey Decimal Classification::900 | Geschichte und Geografie

description: Die vorliegende Dissertation fokussiert thematisch die Migration in den landwirtschaftlichen Bereich. Sie untersucht Ausgangslage und Entwicklung bezogen auf Nordostniedersachsen, wobei der Migrationsprozess in seinen nationalen und europäischen politischen Kontext integriert wird. Die Studie geht der Frage nach, welche Motivationen, Ziele und Strategien den zwei Hauptgruppen (die der italienischen Saisonarbeiter einerseits und die der deutschen Bauern sowie landwirtschaftlichen Verbände anderseits) zugrunde lagen.
A numerical study on exceptional eigenvalues of certain congruence subgroups of SO(n,1) and SU(n,1)
Creators: name: Lauret, Emilio A.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: Primary 11F72, Secondary 11D45

description: In a previous work we apply lattice point theorems on hyperbolic spaces obtaining asymptotic formulas for the number of integral representations of negative integers by quadratic and hermitian forms of signature (n,1) lying in Euclidean balls of increasing radius. This formula involves an error term that depends on the first nonzero eigenvalue of the Laplace-Beltrami operator on the corresponding congruence hyperbolic manifolds. The aim of this paper is to compare the error term obtained by experimental computations, with the error term mentioned above, for several choices of quadratic and hermitian forms. Our numerical results give evidences of the existence of exceptional eigenvalues for some arithmetic subgroups of SU(3,1), SU(4,1) and SU(5,1), thus they contradicts the generalized Selberg (and Ramanujan) conjecture in these cases. Furthermore, for several arithmetic subgroups of SO(4,1), SO(6,1), SO(8,1) and SU(2,1), there are evidences of a lower bound on the first nonzero eigenvalue better than the already known lower bound for congruences subgroups.
description: 20 pages, 4 figures, 8 tables
Growth Strategies: The New Planning Game in Georgia
Creators: name: Nelson, Arthur C.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1990

description: In 1989, Georgia adopted an innovative statewide land use planning program known as Growth Strategies. The author notes that North Carolina's Coastal Area Management Act served as one model for Georgia's program. This article describes the passage of this legislation and the application of Growth Strategies in Georgia.
Biogas als erneuerbarer Energieträger : Konfliktpotenziale mit anderen Raumnutzungen und planerische Koordinierungsmöglichkeiten auf regionaler Ebene
Creators: name: Buhr, Nina
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2012
Subjects: subject: Biogas process chain
subject: land uses
subject: regional planning
subject: Biogas-Prozesskette
subject: Raumnutzungen
subject: Regionalplanung
subject: Dewey Decimal Classification::300 | Sozialwissenschaften, Soziologie, Anthropologie::330 | Wirtschaft::333 | Boden- und Energiewirtschaft::333,7 | Natürliche Ressourcen, Energie und Umwelt
subject: Dewey Decimal Classification::700 | Künste, Bildende Kunst allgemein::710 | Landschaftsgestaltung, Raumplanung

description: [no abstract]
Análisis respecto a la decidibilidad de un derecho fundamental, principio o institución prevista en sede constitucional
Creators: name: Nieto Olvera, Pedro David
Publisher: name: Zenodo
Year: 2022

description: En palabras de Ferrajoli[1], la esfera de lo indecidible se trata de "el conjunto de principios que, en democracia, están sustraídos a la voluntad de las mayorías". La noción nos refiere tanto a lo que no podría decidirse nunca, como a lo que no puede dejar de decidirse, también de modo inexorable.
Así, dentro del ámbito de lo indecidible hallamos dos esferas: la primera esfera es la de las prohibiciones, esto es, la de los límites negativos impuestos a la legislación en garantía de los derechos de libertad. La segunda es la de las obligaciones, es decir, la de los vínculos positivos igualmente impuestos a la legislación en garantía de los derechos sociales. El conjunto de estas prohibiciones y obligaciones, abarca la totalidad de las garantías de los derechos constitucionalmente establecidos.
Esta noción de Ferrajoli, como puede apreciarse, va mucho más allá en sus implicancias que las de otros autores, pues designa no solamente el espacio o el territorio prohibido sino también el espacio y el territorio obligado: no sólo lo que no puede ser decidido, sino también lo que no puede dejar de ser decidido, o sea lo que debe ser decidido". Es decir, Ferrajoli incluye a los derechos sociales como derechos fundamentales y los coloca como obligaciones de hacer que tienen los Estados y cuyo cumplimiento no puede depender de la voluntad política. Fuera de lo indecidible queda "el reino de la política y el mercado", es decir, la esfera de lo decidible, de lo discrecional, donde vale la regla de la mayoría, aunque rígidamente delimitada por los derechos fundamentales.
Por lo tanto, el presente análisis pretende reflejar la influencia de Ferrajoli en la implementación de una metodología de la Suprema Corte de Justicia de la Nación[2] y su propuesta de test para resolver un caso de importancia elevada en nuestro País. 
 
[1] Ferrajoli, Luigi, Derechos y Garantías. La ley del más débil, 4ª Edición, Editorial Trotta, 2004
[2] Dentro del cuerpo del presente trabajo me referiré a la Suprema Corte de Justicia de la Nación, Corte, Primera Sala, Alto Tribunal.
Coulomb breakup reactions of $^{11}$Li in the coupled-channel $^9$Li~+~$n$~+~$n$ three-body model
Creators: name: Kikuchi, Yuma
name: Myo, Takayuki
name: Kato, Kiyoshi
name: Ikeda, Kiyomi
Publisher: name: arXiv
Year: 2013
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We investigate the three-body Coulomb breakup of a two-neutron halo nucleus $^{11}$Li. We use the coupled-channel $^9$Li + $n$ + $n$ three-body model, which includes the coupling between last neutron states and the various $2p$-$2h$ configurations in $^9$Li due to the tensor and pairing correlations. The three-body scattering states of $^{11}$Li are described by using the combined methods of the complex scaling and the Lippmann-Schwinger equation. The calculated breakup cross section successfully reproduces the experiments. The large mixing of the s-state in the halo ground state of $^{11}$Li is shown to play an important role in explanation of shape and strength of the breakup cross section. In addition, we predict the invariant mass spectra for binary subsystems of $^{11}$Li. It is found that the two kinds of virtual s-states of $^9$Li-$n$ and $n$-$n$ systems in the final three-body states of $^{11}$Li largely contribute to make low-lying peaks in the invariant mass spectra. On the other hand, in the present analysis, it is suggested that the contributions of the p-wave resonances of $^{10}$Li is hardly confirmed in the spectra.
description: 26 pages, 11 figures, 2 tables, submitted to Phys. Rev. C
Neue Ansätze zur Produktion von rekombinanten TGF-β3 in verschiedenen Expressionssystemen
Creators: name: Stuckenberg, Lena
Publisher: name: Hannover : Institutionelles Repositorium der Leibniz Universität Hannover
Year: 2021
Subjects: subject: TGF-β3
subject: Thioredoxin A
subject: CHO-K1
subject: HEK293
subject: E. coli
subject: PEI-vermittelte transiente Transfektion
subject: Dewey Decimal Classification::600 | Technik::660 | Technische Chemie

description: Der humane Wachstumsfaktor Transforming Growth Factor-β3 (TGF-β3) kommt im embryonalen und adulten Körper vor. Unter anderem beeinflusst das Zytokin in strukturgebendem Gewebe die Differenzierung von Zellen zu Chondrozyten. Diese Eigenschaft soll im Rahmen der DFG-Forschergruppe „Gradierte Implantate“ in einem medizinischen Produkt zusammen mit anderen Wachstumsfaktoren genutzt werden, um Verletzungen am Sehnen-Knochen-Übergang in der Schulterheilen zu können. In dieser Arbeit wurden verschiedene Ansätze zur Produktion von rekombinanten TGF-β3 evaluiert. Als Expressionsorganismen dienten das Bakterium Escherichia coli sowie die Säugetierzelllinien CHO-K1 und HEK293. Auf Grundlage der Aminosäuresequenz des humanen TGF-β3 wurden verschiedene Plasmide entwickelt und in die Organismen eingebracht. In E. coli wurde das Zielprotein als Monomer in Proteinaggregaten exprimiert. Mithilfe der statistischen Versuchsplanung wurde die Kultivierung im Schüttelkolbenmaßstab hinsichtlich einer möglichst hohen Proteinausbeute optimiert. Nach Solubilisierungsversuchen konnte die Löslichkeit schließlich mithilfe des Fusionsproteins Thioredoxin A erhöht werden. Im Anschluss erfolgte die Optimierung des Zellaufschlusspuffers und die Aufreinigung des Zielproteins über eine Nickel-Affinitätschromatographie. Für die Herstellung in CHO-K1-Zellenwurde zunächst eine geeignete Methode zur Polyethylenimin-vermittelten transienten Transfektion etabliert. Die Expression des Zielproteins TGF-β3 konnte im Anschluss nicht nachgewiesen werden. In den HEK293-Zellen wurde mittels transienter Transfektion die Expression von TGF-β3 erreicht. Das Zielprotein liegt neben der monomeren auch in seiner dimeren Form vor. Insgesamt konnten zwei vielversprechende Ansätze zur Produktion von rekombinanten TGF-β3 aufgezeigt werden.
Thermal emission in the early X-ray afterglows of GRBs: following the prompt phase to the late times
Creators: name: Friis, Mette
name: Watson, Darach
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Thermal radiation, peaking in soft X-rays, has now been detected in a handful of GRB afterglows and has to date been interpreted as shock break-out of the GRB's progenitor star. We present a search for thermal emission in the early X-ray afterglows of a sample of Swift bursts selected by their brightness in X-rays at early times. We identify a clear thermal component in eight GRBs and track the evolution. We show that at least some of the emission must come from highly relativistic material since two show an apparent super-luminal expansion of the thermal component. Furthermore we determine very large luminosities and high temperatures for many of the components-too high to originate in a SN shock break-out. Instead we suggest that the component may be modelled as late photospheric emission from the jet, linking it to the apparently thermal component observed in the prompt emission of some GRBs at gamma-ray and hard X-ray energies. By comparing the parameters from the prompt emission and the early afterglow emission we find that the results are compatible with the interpretation that we are observing the prompt quasi-thermal emission component in soft X-rays at a later point in its evolution.
description: 9 pages, 4 figures, ApJ accepted
2023 OpenFF Annual Meeting - Modeling proteins and small molecules self-consistently with Open Force Field
Creators: name: Cavender, Chapin
Publisher: name: Zenodo
Year: 2023

description: Modeling proteins and small molecules self-consistently with Open Force Field Chapin E. Cavender Open Force Field Initiative Gilson Lab, UCSD This is a presentation from the second day of the 2023 OMSF Symposium in Boston, which ran as a hybrid in-person/virtual event. https://youtu.be/PbNBYgmbGw8
description: Research supported by NIH R01 GM132386
Biomimetic fabrication and tunable wetting properties of three-dimensional hierarchical ZnO structures by combining soft lithography templated with lotus leaf and hydrothermal treatments
Creators: name: Dai, Shuxi
name: Zhang, Dianbo
name: Shi, Qing
name: Han, Xiao
name: Wang, Shujie
name: Du, Zuliang
Publisher: name: arXiv
Year: 2013
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Other Condensed Matter (cond-mat.other)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Physical sciences

description: Three-dimensional hierarchical ZnO films with lotus-leaf-like micro/nano structures were successfully fabricated via a biomimetic route combining sol-gel technique, soft lithography and hydrothermal treatments. PDMS mold replicated from a fresh lotus leaf was used to imprint microscale pillar structures directly into a ZnO sol film. Hierarchical ZnO micro/nano structures were subsequently fabricated by a low-temperature hydrothermal growth of secondary ZnO nanorod arrays on the micro-structured ZnO film. The morphology and size of ZnO hierarchical micro/nano structures can be easily controlled by adjusting the hydrothermal reaction time. Wettability of hierarchical ZnO thin films was found to convert from superhydrophilicity to hydrophobicity after a low-surface-energy fluoroalkylsilane modification. Improved wetting properties from hydrophobic to superhydrophobic can be tuned by increasing the growth of ZnO nanorods structures.
description: Accepted Manuscript,7 pages, 8 figures
The Arts and Preservation: A Natural Affinity
Creators: name: Salzman, Marjorie K.N.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1989

description: In the third in our series of articles exploring the issues around which preservation coalitions can be built, the author discusses the evolving connection between planning preservation, and the arts. She describes the spectacular results of arts groups joining forces with preservationists in North Carolina and gives insight into the type of individual often needed to stimulate these efforts.
The Z2-anomaly and boundaries of topological insulators
Creators: name: Ringel, Zohar
name: Stern, Ady
Publisher: name: arXiv
Year: 2012
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We study the edge and surface theories of topological insulators from the perspective of anomalies and identify a novel Z2-anomaly associated with charge conservation. The anomaly is manifested through a 2-point correlation function involving creation and annihilation operators on two decoupled boundaries. Although charge conservation on each boundary requires this quantity to vanish, we find that it diverges. A corollary result is that under an insertion of a flux quantum the ground state evolves to an exactly orthogonal state independent of the rate at which the flux is inserted. The anomaly persists in the presence of disorder and imposes sharp restrictions on possible low energy theories. Being formulated in a many-body, field theoretical language, the anomaly allows to test the robustness of topological insulators to interactions in a concise way.
description: 7 pages, 0 figures
Charge Exchange in Low-Energy H, D + C4+ Collisions with Full Account of Electron Translation
Creators: name: Belyaev, A. K.
name: Grosser, J.
name: Liévin, J.
name: Vaeck, N.
Publisher: name: Basel : MDPI AG
Year: 2002
Subjects: subject: charge transfer
subject: electron translation
subject: Ion-atom collision
subject: molecular calculations
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik
subject: Dewey Decimal Classification::500 | Naturwissenschaften::540 | Chemie

description: We report the application of the quantum approach, which takes full account of electron translation at low collisional energies, to the charge exchange process H, D + C4+ → H+, D+ + C3+(3s; 3p; 3d). The partial and the total integral cross sections of the process are calculated in the energy range from 1 till 60 eV/amu. It is shown that the present results are independent from the upper integration limit for numerical solution of the coupled channel equations although nonadiabatic couplings remain nonzero up to infinity. The calculated partial and total cross sections are in agreement with the previous low-energy calculations and the available experimental data. It is shown that for low collisional energies the isotopic effect takes place. The observed effect is explained in terms of the nonadiabatic dynamics.
Black Hole Scattering from Monodromy
Creators: name: Castro, Alejandra
name: Lapan, Joshua M.
name: Maloney, Alexander
name: Rodriguez, Maria J.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study scattering coefficients in black hole spacetimes using analytic properties of complexified wave equations. For a concrete example, we analyze the singularities of the Teukolsky equation and relate the corresponding monodromies to scattering data. These techniques, valid in full generality, provide insights into complex-analytic properties of greybody factors and quasinormal modes. This leads to new perturbative and numerical methods which are in good agreement with previous results.
description: 28 pages + appendices, 2 figures. For Mathematica calculation of Stokes multipliers, download "StokesNotebook" from https://sites.google.com/site/justblackholes/techy-zone
title: Anleitung zur Kenntniss der Römischen Inschriften von Karl Zell, Heidelberg 1852
Creators: name: Aschbach, Joseph
Publisher: name: University Library Heidelberg
Year: 2016

description: Rezension zu: Anleitung zur Kenntniss der Römischen Inschriften von Karl Zell, Prof. a. d. Univ. zu Heidelberg etc. (auch unter dem Titel: Handbuch der Römischen Epigraphik. Zweiter Theil.), Heidelberg, Karl Winter 1852. 8°. XIV. S. 385 mit 3 lithographirten Tafeln.
Scientific discourse on YouTube: Motivations for citing research in comments
Creators: name: Striewski, Sören
name: Zagovora, Olga
name: Peters, Isabella
Publisher: name: Zenodo
Year: 2022
Subjects: Altmetrics
YouTube comments
Scholarly communication
Social media metrics
Social media studies

description: Presentation slides at 85th Annual Meeting of the Association for Information Science and Technology on October 29-November 1, 2022 in Pittsburgh, PA.
Services Can be Provided Cost-Effectively
Creators: name: Raubeson, Andy
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1982

description: The Burnside Consortium was incorporated as a nonprofit corporation on September 12, 1978. Incorporation of the Portland, Oregon organization occurred only after two years of study and discussion by neighborhood residents, business interests, city officials and existing service agencies. City government felt a need to have a professionally managed umbrella organization for the Burnside neighborhood. At the same time, existing service providers were adamant that the Consortium not become a "super agency" that would engulf them.
2023 OpenFF Annual Meeting - Functional Form Exploration The Double Exponential Force Field for small molecules
Creators: name: Horton, Josh
Publisher: name: Zenodo
Year: 2023

description: Functional Form Exploration The Double Exponential Force Field for small molecules Josh Horton, Simon Boothroyd, Pavan Behara, David Mobley and Daniel Cole Open Force Field Daniel Cole Lab, Newcastle University This is a presentation from the second day of the 2023 OMSF Symposium in Boston, which ran as a hybrid in-person/virtual event. https://youtu.be/T2oh0ilk69Q
description: Research supported by NIH R01 GM132386
Causal structure of the entanglement renormalization ansatz
Creators: name: Beny, Cedric
Publisher: name: Bristol : IOP Publishing Ltd.
Year: 2013
Subjects: subject: Physics, Multidisciplinary
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: We show that the multiscale entanglement renormalization ansatz (MERA) can be reformulated in terms of a causality constraint on discrete quantum dynamics. This causal structure is that of de Sitter space with a flat space-like boundary, where the volume of a spacetime region corresponds to the number of variational parameters it contains. This result clarifies the nature of the ansatz, and suggests a generalization to quantum field theory. It also constitutes an independent justification of the connection between MERA and hyperbolic geometry which was proposed as a concrete implementation of the AdS-CFT correspondence.
Many-body wave scattering by small bodies and applications II
Creators: name: Rona, Aldo
name: Ramm, Alexander G.
Publisher: name: figshare
Year: 2022
Subjects: subject: 10299 Applied Mathematics not elsewhere classified
subject: FOS: Mathematics
subject: 20301 Acoustics and Acoustical Devices; Waves
subject: FOS: Physical sciences

description: The many-body wave scattering problem is studied in the case where the bodies are small, ka ≪ 1, where a is the characteristic size of a body. The limiting case when a → 0 and the total number of the small bodies is M = O(a2−κ) is studied.
Anisotropy in solid inflation
Creators: name: Bartolo, Nicola
name: Matarrese, Sabino
name: Peloso, Marco
name: Ricciardone, Angelo
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In the model of solid / elastic inflation, inflation is driven by a source that has the field theoretical description of a solid. To allow for prolonged slow roll inflation, the solid needs to be extremely insensitive to the spatial expansion. We point out that, because of this property, the solid is also rather inefficient in erasing anisotropic deformations of the geometry. This allows for a prolonged inflationary anisotropic solution, providing the first example with standard gravity and scalar fields only which evades the conditions of the so called cosmic no-hair conjecture. We compute the curvature perturbations on the anisotropic solution, and the corresponding phenomenological bound on the anisotropy. Finally, we discuss the analogy between this model and the f (phi) F^2 model, which also allows for anisotropic inflation thanks to a suitable coupling between the inflaton phi and a vector field. We remark that the bispectrum of the curvature perturbations in solid inflation is enhanced in the squeezed limit and presents a nontrivial angular dependence, as had previously been found for the f (phi) F^2 model.
description: 16 pages, 2 figures
Upper Esophageal Sphincter Response to Laryngeal Adductor Reflex Elicitation in Humans
Creators: name: Meisoll, Frederik J.
name: Jungheim, Michael
name: Fast, Jacob F.
name: Miller, Simone
name: Ptok, Martin
Publisher: name: Chichester : John Wiley and Sons Ltd
Year: 2021
Subjects: subject: airway-protective mechanism
subject: high-resolution manometry
subject: laryngeal adductor reflex
subject: laryngo-UES contractile reflex
subject: Upper esophageal sphincter
subject: Dewey Decimal Classification::600 | Technik::610 | Medizin, Gesundheit

description: Objective: The laryngeal adductor reflex (LAR) is an important mechanism to secure the airways from potential foreign body aspiration. An involvement of the upper esophageal sphincter (UES) in terms of a laryngo-UES contractile reflex has been identified after laryngeal mucosa stimulation. However, the LAR–UES relationship has not yet been fully explained. This study aimed to determine the magnitude, latency, and occurrence rate of the UES pressure response when the LAR is triggered in order to elucidate the functional relationship between the larynx and the UES. Methods: This prospective study included seven healthy volunteers (5 female, 2 male, age 22–34 years). Laryngeal penetration was simulated by eliciting the LAR 20 times in each individual by applying water-based microdroplets onto the laryngeal mucosa. UES pressures were measured simultaneously using high-resolution manometry. Results: Two distinct pressure phases (P1, P2) associated with the LAR were identified. P1 corresponded with a short-term UES pressure decrease in two subjects and a pressure increase in five subjects occurring 200 to 500 ms after the stimulus. In P2, all subjects experienced an increase in UES pressure with a latency time of approximately 800 to 1700 ms and an average of 40 to 90 mmHg above the UES resting tone. Conclusion: Foreign bodies penetrating the laryngeal inlet lead to a reflex contraction of the UES. Phase P1 could be a result of vocal fold activity caused by the LAR, leading to pressure changes in the UES. The constriction during P2 could strengthen the barrier function of the UES in preparation to a subsequent cough that may be triggered to clear the airways. Level of Evidence: 4 Laryngoscope, 2020. © 2020 The Authors. The Laryngoscope published by Wiley Periodicals LLC on behalf of American Laryngological, Rhinological and Otological Society Inc, "The Triological Society" and American Laryngological Association (ALA).
Untitled Item
Creators: name: Rona, Aldo
name: Ramm, Alexander G.
Publisher: name: figshare
Year: 2022
Subjects: subject: 10299 Applied Mathematics not elsewhere classified
subject: FOS: Mathematics
subject: 20301 Acoustics and Acoustical Devices; Waves
subject: FOS: Physical sciences

description: The many-body wave scattering problem is studied in the case where the bodies are small, ka ≪ 1, where a is the characteristic size of a body. The limiting case when a → 0 and the total number of the small bodies is M = O(a2−κ) is studied.
Entanglement of Tripartite States with Decoherence in Noninertial frames
Creators: name: Khan, Salman
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The one-tangle and π-tangle are used to quantify the entanglement of a tripartite GHZ state in noninertial frames when the system interacts with a noisy environment in the form of phase damping, phase flip and bit flip channel. It is shown that the two-tangles behave as a closed system. The one-tangle and π-tangle have different behaviors in the three channel. In the case of phase damping channel, depending on the kind of coupling, the sudden death of both one-tangle and π-tangle may or may not happen. Whereas in the case of phase flip channel the sudden death cannot be avoided. The effect of decoherence may be ignored in the limit of infinite acceleration when the system interacts with a bit flip channel. Furthermore, a sudden rebirth of the one-tangle and π-tangle occur in the case of phase flip channel that may be delayed when collective coupling is switched on.
description: 10 figures
Towards a Sustainable Seattle: Good Planning and Good Politics
Creators: name: Lawrence, J. Gary
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1995

description: The City of Seattle is trying to shape a future which is more sustainable on a variety of measures. We want to sustain our environmental quality for both health and soul. We want to sustain our economic prosperity and maybe even obtain more clarity about the differences between standard of living and quality of life. And, we want to sustain our society — preserve what is best about us and maintain civility.
FLORISTIC INVENTORY OF THE PROTECTED VEGETATION STANDS AMIDST STONE MINING AREAS IN RAMGANJ MANDI, KOTA, RAJASTHAN.pdf
Creators: name: Jaiswal, Poonam
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 410402
subject: Environmental assessment and monitoring

description: The research work is an assessment of the flora of protected vegetation stands. In the region, stone mining is causing the change in floristic status. Hence this work is important for preparing a plan to conserve the flora of this region.
Neue TiO2-Filme mit organisierter Mesoporosität und gezielter Modifizierung als Photokatalysatoren unter sichtbarem Licht
Creators: name: Yarovyi, Viktor
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2011
Subjects: subject: Sol gel chemistry
subject: semiconductor
subject: electrochemical deposition
subject: photocatalysis
subject: methyl viologen
subject: Sol-Gel Chemie
subject: Halbleiter
subject: elektrochemische Abscheidung
subject: Photokatalyse
subject: Methylviologen
subject: Dewey Decimal Classification::500 | Naturwissenschaften::540 | Chemie

description: [no abstract]
2023 OpenFF Annual Meeting - Bespoke Force Field Parameters for Computer-Aided Drug Design
Creators: name: Cole, Daniel
Publisher: name: Zenodo
Year: 2023

description: Bespoke Force Field Parameters for Computer-Aided Drug Design Daniel Cole, Newcastle University This is a presentation from the second day of the 2023 OMSF Symposium in Boston, which ran as a hybrid in-person/virtual event. https://youtu.be/kGXRXvrP80g
description: Research supported by NIH R01 GM132386