cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Discovery of the Optical/Ultraviolet/Gamma-ray Counterpart to the Eclipsing Millisecond Pulsar J1816+4510
Creators: name: Kaplan, D. L.
name: Stovall, K.
name: Ransom, S. M.
name: Roberts, M. S. E.
name: Kotulla, R.
name: Archibald, A. M.
name: Biwer, C. M.
name: Boyles, J.
name: Dartez, L.
name: Day, D. F.
name: Ford, A. J.
name: Garcia, A.
name: Hessels, J. W. T.
name: Jenet, F. A.
name: Karako, C.
name: Kaspi, V. M.
name: Kondratiev, V. I.
name: Lorimer, D. R.
name: Lynch, R. S.
name: McLaughlin, M. A.
name: Rohr, M. D. W.
name: Siemens, X.
name: Stairs, I. H.
name: van Leeuwen, J.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The energetic, eclipsing millisecond pulsar J1816+4510 was recently discovered in a low-frequency radio survey with the Green Bank Telescope. With an orbital period of 8.7 hr and minimum companion mass of 0.16 Msun it appears to belong to an increasingly important class of pulsars that are ablating their low-mass companions. We report the discovery of the gamma-ray counterpart to this pulsar, and present a likely optical/ultraviolet counterpart as well. Using the radio ephemeris we detect pulsations in the unclassified gamma-ray source 2FGL J1816.5+4511, implying an efficiency of ~25% in converting the pulsar's spin-down luminosity into gamma-rays and adding PSR J1816+4510 to the large number of millisecond pulsars detected by Fermi. The likely optical/UV counterpart was identified through position coincidence (<0.1") and unusual colors. Assuming that it is the companion, with R=18.27+/-0.03 mag and effective temperature >15,000 K it would be among the brightest and hottest of low-mass pulsar companions, and appears qualitatively different from other eclipsing pulsar systems. In particular, current data suggest that it is a factor of two larger than most white dwarfs of its mass, but a factor of four smaller than its Roche lobe. We discuss possible reasons for its high temperature and odd size, and suggest that it recently underwent a violent episode of mass loss. Regardless of origin, its brightness and the relative unimportance of irradiation make it an ideal target for a mass, and hence a neutron star mass, determination.
description: 10 pages, 6 figures. Accepted for publication in the Astrophysical Journal
An inosine triphosphate pyrophosphatase safeguards plant nucleic acids from aberrant purine nucleotides
Creators: name: Straube, Henryk
name: Straube, Jannis
name: Rinne, Jannis
name: Fischer, Lisa
name: Niehaus, Markus
name: Witte, Claus‐Peter
name: Herde, Marco
Publisher: name: Oxford [u.a.] : Wiley-Blackwell
Year: 2022
Subjects: subject: abiotic stress
subject: damaged metabolites
subject: deaminated purine nucleotides
subject: inosine triphosphate
subject: inosine triphosphate pyrophosphatase
subject: plant nucleotide metabolism
subject: senescence
subject: Dewey Decimal Classification::500 | Naturwissenschaften::580 | Pflanzen (Botanik)

description: In plants, inosine is enzymatically introduced in some tRNAs, but not in other RNAs or DNA. Nonetheless, our data show that RNA and DNA from Arabidopsis thaliana contain (deoxy)inosine, probably derived from nonenzymatic adenosine deamination in nucleic acids and usage of (deoxy)inosine triphosphate (dITP and ITP) during nucleic acid synthesis. We combined biochemical approaches, LC–MS, as well as RNA-Seq to characterize a plant INOSINE TRIPHOSPHATE PYROPHOSPHATASE (ITPA) from A. thaliana, which is conserved in many organisms, and investigated the sources of deaminated purine nucleotides in plants. Inosine triphosphate pyrophosphatase dephosphorylates deaminated nucleoside di- and triphosphates to the respective monophosphates. ITPA loss-of-function causes inosine di- and triphosphate accumulation in vivo and an elevated inosine and deoxyinosine content in RNA and DNA, respectively, as well as salicylic acid (SA) accumulation, early senescence, and upregulation of transcripts associated with immunity and senescence. Cadmium-induced oxidative stress and biochemical inhibition of the INOSINE MONOPHOSPHATE DEHYDROGENASE leads to more IDP and ITP in the wild-type (WT), and this effect is enhanced in itpa mutants, suggesting that ITP originates from ATP deamination and IMP phosphorylation. Inosine triphosphate pyrophosphatase is part of a molecular protection system in plants, preventing the accumulation of (d)ITP and its usage for nucleic acid synthesis.
Aestheticizing mobilities : art deco and the fashioning of interwar public cultures
Creators: name: Windover, Michael Joseph
Publisher: name: University of British Columbia
Year: 2009

description: Art Deco, as a mode of design, was a response to the conditions of post-World War I modernity, including the advent of “mass” culture, a desire for a return to order, and an intense interest in mobility—physical/geographical, conceptual, temporal, and social. This thesis argues that mobility lies at the heart of Art Deco as it fashioned public cultural spaces throughout the globe in the interwar years. Both the iconography and general formal qualities (whether zig-zag forms popular in the 1920s or streamlining of the 1930s) evinced the idea of movement, which suited the optimism of the 1920s as well as a desire for control in the period of socio-political unrest caused by the Depression. This thesis explores some of the socio-political ramifications of the style as it entered the patterns and spaces of everyday life (i.e., lifestyle). The imaging of mobility so apparent on the surfaces of Art Deco points to the larger, interpenetrating systems of mobility that underpin the fabrication of modern public cultures. These “mobilities” included migration, transportation, commodity exchange, capital, and communication (notably print, film, and radio, but also fashion, design, and architecture). While the Deco appeared “new” in a manner consonant with the sense of immediacy (even fashionability) brought about by these mobilities, and optimistically gestured to a new world in the future-present, the style ultimately reinscribed the pre-existing social order. It was a cosmopolitan style: traditional yet modern, “worldly” in appearance yet local. This thesis travels through a number of different spaces, envisioning Art Deco as a kind of crossroads—a style of flow and intermixture yet stability. While celebrating mobility, the Deco often masked other forms of (im)mobility. I examine these concepts in relation to the Marine Building in Vancouver, Bullock’s Wilshire department store in Los Angeles, the Regal and Eros cinemas in Bombay (Mumbai), and the design of radio cabinets in Canada. In so doing, the thesis suggests the reach of the Deco into everyday life and across the globe, and offers a new way to approach a style that is most often associated with the frivolous by emphasizing its socio-political implications.
The effect of biodynamic preparations on growth and fruit quality of giant pumpkin (Cucurbita maxima D.)
Creators: name: Juknevičienė, Edita
name: Danilčenko, Honorata
name: Jarienė, Elvyra
name: Živatkauskienė, Vilma
name: Zeise, Johanna
name: Fritz, Jürgen
Publisher: name: Universität Kassel
Year: 2021
Subjects: subject: winter squash
subject: preparation
subject: horn manure
subject: horn silica
subject: pumpkin fruit
subject: secondary plant compounds
subject: antioxidants
subject: carotenoids
subject: 570
subject: 630
subject: Riesenkürbis
subject: Vorbereitung
subject: Kürbisanbau
subject: Lebensmittelqualität
subject: Antioxidans
subject: Carotinoide

description: Gefördert durch den Publikationsfonds der Universität Kassel
Design Rules for Laser Beam Melted Particle Dampers
Creators: name: Ehlers, T.
name: Lachmayer, R.
Publisher: name: Cambridge : Cambridge University Press
Year: 2022
Subjects: subject: additive manufacturing
subject: design guidelines
subject: functional integration
subject: lightweight design
subject: particle damping
subject: Konferenzschrift
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: By means of additive manufacturing, especially laser powder bed fusion, particle dampers can be integrated locally into structural components and thus significantly reduce component vibrations. However, detailed design recommendations for additively manufactured particle dampers do not yet exist. The research question in this paper is: How can the effect of particle damping be described as a function of excitation force, cavity width and cavity length? For beams made of AlSi10Mg, it is shown that a powder-filled cavity of 2.5% to 5% is sufficient to increase the damping by more than x10.
title: Public International Law and Pandemics: COVID-19 as a Watershed?: Völkerrechtliche Tagesthemen 9
Creators: name: Villarreal, Pedro
Publisher: name: Fachinformationsdienst für internationale und interdisziplinäre Rechtsforschung
Year: 2021
Subjects: subject: 341

description: One year into the pandemic, Dr. Pedro A. Villarreal is taking stock of the International Law on global health. He focuses on the 2005 International Health Regulations (IHR) of the WHO, which contain binding obligations for WHO Member States on the cross-border spread of diseases. The IHR do have some limitations, however, e.g. their lack of an effective sanctions mechanism applicable by the WHO against Member States. In the end, Dr. Villarreal asks whether global responses against future pandemics might be different and whether the COVID-19 pandemic will act as a watershed in this light.
description: Völkerrechtsblog
A Comparative Analysis of Residential Care: A Five-Country Multiple Case-Design Study
Creators: name: James, Sigrid
name: Wilczek, Lucas
name: Kilian, Juri
name: Timonen-Kallio, Eeva
name: Bravo, Amaia
name: Del Valle, Jorge Fernández
name: Formenti, Laura
name: Petrauskiene, Alina
name: Pivoriene, Jolanta
name: Rigamonti, Alessandra
Publisher: name: Universität Kassel
Year: 2021
Subjects: subject: residential care for children and youth
subject: foster care
subject: child welfare
subject: deinstitutionalization
subject: out-of-home care
subject: group care
subject: international child welfare
subject: child welfare policy
subject: 300
subject: Hauspflege
subject: Kind
subject: Jugend
subject: Fremdunterbringung
subject: Kinderfürsorge
subject: Entinstitutionalisierung

description: Gefördert im Rahmen des Projekts DEAL
description: This research was supported by the Erasmus+program.
Home vs. "Hard to House"
Creators: name: Goetz, Judith Teresa
Publisher: name: University of British Columbia
Year: 2009

description: The literature suggests that there is an existing mismatch between service providers that supply housing and the needs of the most vulnerable and marginalized homeless population, the “hard to house”. This specific population faces complex problematic characteristics like substance use, physical and mental health concerns, particular behaviours (e.g. collecting, aggressiveness), visual appearance, lack of social skills, childhood trauma, working in the sex trade, and so on which leaves them in a constant state of absolute or relative homelessness. To gain a better understanding of their needs, the meaning and creation of home for this population is the focus of this research project. The two main research questions are: What is the meaning of home for those labelled "hard to house"? And how is it created? To answer these questions eight residents at a housing project within Vancouver’s Downtown Eastside have been interviewed, using a naturalistic qualitative research approach. Three emergent themes have been identified: 1) self care, 2) divided neighbourhood, and 3) young adulthood. The themes are discussed by applying Vaclav Havel’s definition of home and integrating Erving Goffman’s theory on interaction rituals, exclusively focusing on two essays “On Face Work” and “The Nature of Deference and Demeanor”.
Correlations in typicality and an affirmative solution to the exact catalytic entropy conjecture
Creators: name: Wilming, Henrik
Publisher: name: Wien : Verein zur Förderung des Open Access Publizierens in den Quantenwissenschaften
Year: 2022
Subjects: subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: It is well known that if a (finite-dimensional) density matrix ρ has smaller entropy than ρ0, then the tensor product of sufficiently many copies of ρ majorizes a quantum state arbitrarily close to the tensor product of correspondingly many copies of ρ0. In this short note I show that if additionally rank(ρ) ≤ rank(ρ0), then n copies of ρ also majorize a state where all single-body marginals are exactly identical to ρ0 but arbitrary correlations are allowed (for some sufficiently large n). An immediate application of this is an affirmative solution of the exact catalytic entropy conjecture introduced by Boes et al. [PRL 122, 210402 (2019)]: If H(ρ) < H(ρ0) and rank(ρ) ≤ rank(ρ0) there exists a finite dimensional density matrix σ and a unitary U such that Uρ⊗ σU has marginals ρ0 and σ exactly. All the results transfer to the classical setting of probability distributions over finite alphabets with unitaries replaced by permutations.
Diapositivas - Tesis en 3 minutos - Red Nanoandes: Cálculos de Estructura Electrónica en Perovskitas BiFeO3 y YCrO3
Creators: name: Nagata Tejada, Shigueru Emilio Antonio
Publisher: name: Zenodo
Year: 2020
Subjects: Slides
Thesis
Red Nanoandes
Perú Con Ciencia
CONCYTEC
Perovskite
Antiferromagnetic
Quantum ESPRESSO
Density Functional Theory
Hubbard Parameter
Local Density Approximation

description: Dipositivas del vídeo creado para el concurso Tesis en tres minutos organizado por Red Nanoandes. El vídeo obtuvo la medalla de bronce y fue presentado en la feria de ciencia Perú Con Ciencia organizada por el Consejo Nacional de Ciencia, Tecnología e Innovación Tecnológica (CONCYTEC).
An Introduction to Sustainable Agriculture Practice on Suboptimal Land
Creators: name: Annisa Noyara Rahmasary
name: Fawzi, Nurul Ihsan
name: Qurani, Ika Zahara
Publisher: name: figshare
Year: 2020
Subjects: subject: 70101 Agricultural Land Management
subject: FOS: Other agricultural sciences
subject: 70102 Agricultural Land Planning
subject: 70108 Sustainable Agricultural Development

description: This article will firstly discuss conditions of land that can be defined as suboptimal. The simplest way to identify it is when the land produces less than maximal crop yield. The “suboptimal land” term was started to be widely used to describe the typical character of land with low productivity, reduced economic return, and/or severe limitations for agricultural use. In this context, the usage of the “land” is broader than just soil or terrain layer. These include the atmosphere, geology, hydrology, soil, and the whole living things on it, including human activities such as drainage, terracing, and irrigation.
Phase separation and stripe patterns in K0.8Fe1.6+xSe2 superconductors
Creators: name: Wang, Z. W.
name: Wang, Z.
name: Song, Y. J.
name: Ma, C.
name: Shi, H. L.
name: Chen, Z.
name: Tian, H. F.
name: Yang, H. X.
name: Chen, G. F.
name: Li, J. Q.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Structural investigations on the K0.8Fe1.6+xSe2 superconducting materials have revealed remarkable micro-stripes arising evidently from the phase separation. Two coexisted structural phases can be characterized by modulations of q1 = 1/5[a*+3b*], the antiferromagnetic phase K0.8Fe1.6Se2, and q2 = 1/2[a*+b*], the superconducting phase K0.75Fe2Se2, respectively. These stripe patterns likely result from the anisotropic assembly of superconducting particles along the [110] and [1-10] direction. In addition to the notable stripe structures, a nano-scale phase separation also appears in present superconducting system as clearly observed by high-resolution transmission electron microscopy. Certain notable experimental data obtained in this heterogenous system can be quantitatively explained by the percolation scenario.
description: 15 pages, 6 figures
title: Corona Constitutional #58: Workshop: Verfassungsrechtliche Expertise im politischen Raum
Creators: name: Hailbronner, Michaela
name: Thiele, Alexander
name: Mitsch, Lukas
name: Steinbeis, Maximilian
Publisher: name: Fachinformationsdienst für internationale und interdisziplinäre Rechtsforschung
Year: 2021
Subjects: subject: 342

description: Im politischen Raum wird regelmäßig verfassungsrechtliche Expertise angefragt. Da die Verfassung den rechtlichen Rahmen für den politischen Betrieb vorgibt (oder jedenfalls vorgeben soll), ist das ebenso nachvollziehbar wie notwendig. Verfassungsrechtliche Expertise und rechtswissenschaftliche Argumente werden dadurch Teil des politischen Diskurses und Meinungskampfes. Dies gilt natürlich auch für andere wissenschaftliche Disziplinen, im öffentlichen Recht ist dies aber angesichts des Gegenstands des Faches besonders oft der Fall. Das Verdikt der Verfassungswidrigkeit kann und wird in der Praxis als politisches Argument genutzt, in einer Weise, die sich regelmäßig der Kontrolle der Autor_in entzieht. In der Praxis werden verfassungsrechtliche Argumente etwa nicht selten durch unvollständige oder falsche Wiedergabe entstellt und/oder von Teilen des politischen Spektrums in Anspruch genommen, deren Zielen die Autor_in selbst fern steht. Beispiele für eine nicht unproblematische Nutzung wissenschaftlicher Argumente in der politischen Praxis sind etwa die Debatte der vergangenen Jahre über den Umgang mit der europäischen Flüchtlingskrise. Unter dem Begriff der “Herrschaft des Unrechts” wurden hier verfassungsrechtliche Argumente ins Feld geführt, obwohl die verfassungsrechtliche Situation alles andere als eindeutig war. Jüngere Beispiele betreffen die Maßnahmen zur Eindämmung der Pandemie. Dies gibt der Verfassungsrechtswissenschaft Anlass, sich selbst über die Rolle von verfassungsrechtlicher Expertise im politischen Raum zu vergewissern und darüber mit der Politik sowie mit der Medienöffentlichkeit das Gespräch zu suchen. Die Teilnehmer_innen sind: Renate Künast (Bündnis 90/Die Grünen), Konstantin Kuhle (FDP) und Günter Krings (CDU/CSU), Anna Katharina Mangold (Universität Flensburg) und Daniel Thym (Universität Konstanz) sowie Gudula Geuther (Deutschlandfunk) und Patrick Bahners (FAZ)
description: Verfassungsblog: On Matters Constitutional
Catch and bycatch in U.S. Southeast gillnet fisheries, 2015.
Creators: name: Mathers, Alyssa N. (Alyssa Napier)
name: Deacy, Bethany M.
name: Carlson, John K. (John Keith), 1966-
Publisher: name: U.S. Department of Commerce, National Oceanic and Atmospheric Administration, National Marine Fisheries Service, Southeast Fisheries Science Center, Panama City Laboratory
Year: 2016
Subjects: subject: Bycatches (Fisheries)--Southern States.
subject: Gillnetting--Southern States--Management.
subject: Gillnetting--Catch effort--Southern States--Statistics.

description: The Southeast Gillnet Observer Program has adapted to the changes of the Florida-Georgia shark gillnet fishery since the program began in 1993 (e.g. Carlson and Bethea 2007 and references therein, Mathers et al. 2015). There are currently about 500 total directed and incidental shark permits issued for the southeastern U.S. Atlantic coast and Gulf of Mexico, while the number of gillnet fishers changes from year to year. Gillnet effort targeting large coastal (LCS) and small coastal (SCS) sharks, has declined in recent years as a result of Amendments 2 and 3 to the Consolidated Atlantic Highly Migratory Species Fishery Management Plan (NMFS 2007, 2010). Fishers have consequently increased effort targeting finfish, including Spanish mackerel Scomberomorus maculatus, king mackerel Scomberomorus cavalla, and bluefish Pomatomus saltatrix, with varying types of gillnet gear. However, a small amount of shark targeted gillnet effort continues to be observed. The Southeast Gillnet Observer Program, in its continuing efforts to adapt to the fishery, currently covers anchored (sink and stab), strike, or drift gillnet fishing regardless of target by vessels that fish from Florida to North Carolina and the Gulf of Mexico year-round. Herein, we summarize fishing effort and catch and bycatch in these fisheries during January 2015 - December 2015, collectively referred to as ‘2015’.
Fabrication of submicron La$_{2-x}$Sr$_{x}$CuO$_{4}$ intrinsic Josephson junction stacks
Creators: name: Kubo, Yuimaru
name: Takahide, Yamaguchi
name: Tanaka, Takayoshi
name: Ueda, Shinya
name: Ishii, Satoshi
name: Tsuda, Shunsuke
name: Islam, A. T. M. Nazmul
name: Tanaka, Isao
name: Takano, Yoshihiko
Publisher: name: arXiv
Year: 2011
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Intrinsic Josephson junction (IJJ) stacks of cuprate superconductors have potential to be implemented as intrinsic phase qubits working at relatively high temperatures. We report success in fabricating submicron La$_{2-x}$Sr$_{x}$CuO$_{4}$ (LSCO) IJJ stacks carved out of single crystals. We also show a new fabrication method in which argon ion etching is performed after focused ion beam etching. As a result, we obtained an LSCO IJJ stack in which resistive multi-branches appeared. It may be possible to control the number of stacked IJJs with an accuracy of a single IJJ by developing this method.
description: 5 pages, 6 figures
Camouflage Textiles with Technical Coloration and Incorporating Illumination
Creators: name: Hossain, Anowar
Publisher: name: Zenodo
Year: 2023

description: The demonstration and structure of thesis will cover the design, simulation, formulation for suitability of deceiving materials on textiles substances for high performance camouflage textiles; exposing the concealment and detection on spectral, chromatic and achromatic illumination for camouflaging. The evaluation of camouflage coloration will focus on standard assessments process in visible 400-700 nm and infrared ranges 700-2500 nm for concealment and detection of single and simultaneous background, adaptive environments. Present works on camouflage textiles will flow the illumination engineering of camouflage textiles for defence protection in multidimensional environments, materials and methodology for concealment of latest surveillance technology. Proposed research on camouflage textiles will exhibit multidimensional background environment of camouflage textiles such as woodland, desertland, Iceland, snowland, stoneland and marine. The reflectance and chromatic profile of camouflage treated textiles will be analysed with the reflectance profile of natural background. Germanium, aluminium, titanium dioxide, carbon black nanoparticles, metal oxide, carbon black pigment will be implemented for camouflage coloration as deceiving materials. The principle of camouflage coloration has been considered for reflection altering of target signature against of surrounding background. Experimentation of this thesis will judge the alternative way of camouflage coloration without color matching of natural background in addition of existing color matching principle with natural background. The potential outcome of the research is not only limited to visible ranges camouflage textiles in multidimensional background environments; but also infrared ranges for concealment and advancement of digital camera, hyperspectral camera and radar surveillance to overcome the present challenge of camouflaging. Primary method of deceiving materials formulation is choosed for encapsulation into polyurethane solvent. Secondary method is an application of encapsulated deceiving materials on synthetic or cellulosic fabric such as polyamide 6, 6 (PA 6, 6), polyester and/or cotton fabric. The achievability and suitability of camouflage coloration on multidimensional background environments will be experimented by established methods of textile coloration such as coating, dyeing and/or printing. Camouflage treated fabric will be scanned by spectroscopic, microscopic and photographic illumination for suitability of materials and method and, chromatic and achromatic properties of camouflaging. Color measurement spectrophotometer, near infrared (NIR) spectrophotometer, Fourier transform infrared spectrometry (FTIR), scanning electron microscopy (SEM), digital camera, hyperspectral camera (HPC) are the proposed assessment methods for camouflage identification in terms of chromatic and achromatic characteristics of target signature (camouflage textiles) and multidimensional natural background.
Propuesta De Una Arquitectura Empresarial Para Una Empresa De Consultoría De Sistemas
Creators: name: Oré Alvarado, Erick
name: Valdespino Alvarez, Claudia
Publisher: name: Zenodo
Year: 2015
Subjects: administración de procesos
arquitectura de negocios
empresas de servicios
gestión de servicios de tecnologías de la información
ingeniería de sistemas
mejores prácticas

description: Propone la implementación de una arquitectura empresarial integrada con la gestión del recurso profesional y la gestión de servicios en Tecnología de la información (TI) El primero cápitulo abarca la fundamentación del marco teórico en donde se detallan los conceptos principales que ayudan a comprender el entorno de trabajo de la organización, se presenta el objeto de estudio, y los objetivos y beneficios del proyecto. El segundo capítulo aborda la relación entre los proyectos de software y el recurso profesional en donde se identifica el nivel de madurez del equipo tomando como marco de trabajo el P-CMM. El tercer capítulo detalla la gestión de servicios en TI bajo el marco de trabajo propuesto por en ITIL, lo cual busca fortalecer y mejorar la calidad de los servicios. El cuarto capítulo presenta un análisis detallado de la arquitectura de línea base y la arquitectura objetivo de la organización, empleando para ello el marco de referencia TOGAF. El quinto capítulo define una propuesta de solución en la cual se integren los proyectos de software y el recurso profesional, la gestión de servicios en TI, y la arquitectura empresarial. Finalmente se presenta las conclusiones finales, recomendaciones, glosario de términos, siglario, bibliografía, y anexos.

Autor(es): Oré Alvarado, Erick Alexander; Valdespino Alvarez, Claudia Fiorella

Editorial: Universidad Peruana de Ciencias Aplicadas (UPC)

Fecha de publicación: ENERO 2016

URL: http://hdl.handle.net/10757/605431

PDF: TEXTO COMPLETO / FULL TEXT
Antitrypanosomal butanolides from Aiouea trinervis
Creators: name: Nunes, Felipe Oliveira
name: De Almeida, Júlio Menta
name: Ferreira, Alda Maria Teixeira
name: Da Cruz, Letícia Alves
name: Jacob, Camila Mareti Bonin
name: Garcez, Walmir Silva
name: Garcez, Fernanda Rodrigues
Publisher: name: IfADo - Leibniz Research Centre for Working Environment and Human Factors, Dortmund
Year: 2020
Subjects: subject: Aiouea trinervis
subject: Trypanosoma cruzi
subject: Butanolides
subject: Anti-Trypanosoma activity
subject: In silico ADMET properties
subject: 610

description: In a search for new antitrypanosomal agents in the Brazilian flora, the ethanol extract of the xylopodium from Aiouea trinervis (Lauraceae) exhibited in vitro activity against the epimastigote forms of Trypanosoma cruzi, the etiological agent of Chagas disease. Bioassay-guided chromatographic fractionation of the ethanol extract afforded three butanolides, isoobtusilactone A (1), epilitsenolide C2 (2), and epilitsenolide C1 (3). Butanolides 1 and 3 were more active against T. cruzi epimastigotes than the reference drug benznidazole (by 8.9-fold and 3.2-fold, respectively), while 2 proved inactive. Compounds 1 and 3 showed low cytotoxicity in mammalian Vero cells (CC50> 156 μmol L-1) and high selectivity index (SI) values for epimastigotes (SI = 56.8 and 28.6, respectively), and 1 was more selective than benznidazole (SI = 46.5). Butanolide 1 at 24 μmol L-1 also led to cell cycle alterations in epimastigote forms, and inhibited the growth of amastigote cells in more than 70 %. In silico ADMET properties of 1 were also analyzed and predicted favorable drug-like characteristics. This butanolide also complied with Lipinski’s rule of five and was not predicted as interference compound (PAINS). This is the first report on the isolation of these bioactive butanolides under the guidance of in vitro trypanocidal activity against T. cruzi.
description: EXCLI Journal;Vol. 19 2020
title: Role of changes in SARS-CoV-2 spike protein in the interaction with the human ACE2 receptor
title: an in silico analysis
titleType: AlternativeTitle
Creators: name: Ortega, Joseph Thomas
name: Serrano, Maria Luisa
name: Pujol, Flor Helene
name: Rangel, Hector Rafael
Publisher: name: IfADo - Leibniz Research Centre for Working Environment and Human Factors, Dortmund
Year: 2020
Subjects: subject: Spike
subject: ACE2
subject: Coronavirus
subject: Outbreak
subject: SARS-CoV-2
subject: 610

description: Many human viral diseases are a consequence of a zoonotic event. Some of the diseases caused by these zoonotic events have affected millions of people around the world, some of which have resulted in high rates of morbidity/mortality in humans. Changes in the viral proteins that function as ligands of the host receptor may promote the spillover between species. The most recent of these zoonotic events that have caused an ongoing epidemic of high magnitude is the Covid-19 epidemics caused by SARS-CoV-2. The aim of this study was to determine the mutation(s) in the sequence of the spike protein of the SARS-CoV-2 that might be favoring human to human transmission. An in silico approach was performed, and changes were detected in the S1 subunit of the receptor-binding domain of spike. The observed changes have significant effect on SARS-CoV-2 spike/ACE2 interaction and produce a reduction in the binding energy, compared to the one of the Bat-CoV to this receptor. The data presented in this study suggest a higher affinity of the SARS-Cov-2 spike protein to the human ACE2 receptor, compared to the one of Bat-CoV spike and ACE2. This could be the cause of the rapid viral spread of SARS-CoV-2 in humans.
description: EXCLI Journal;Vol. 19 2020
An electronic portal image-based monte carlo approach to in-vivo dosimetry for intensity modulated radiation therapy
Creators: name: Atwal, Parmveer Singh
Publisher: name: University of British Columbia
Year: 2009

description: Radical radiotherapy aims to concurrently achieve high tumour control probability and low normal tissue complication probability. Intensity-modulated radiation therapy (IMRT) provides the highly localized radiation dose delivery necessary to reach this goal. As highly conformal techniques become more prevalent, the importance of determining, and accounting for, treatment-planning, patient-setup, and delivery errors, which result in discrepancies between the calculated and actual delivered dose, also increases. Accurate Monte Carlo-based modeling of the equipment overcomes some of these deficiencies. Unfortunately, some sources of delivery errors, such as mis-calibration of the beam-modulating system, cannot be easily incorporated in the model. Use of the amorphous-silicon detector (or EPID, for Electronic Portal Imaging Device), available on many linear accelerators, provides a solution. We hypothesize that non-transit dose images from the EPID provide us with information regarding certain delivery errors. To obtain this information, we first capture non-transit EPID dose images of the treatment field. Next, removal of intra-EPID scatter via iterative Richardson-Lucy deconvolution converts the dose image to a fluence matrix. Projected back to the height of the beam-modulating system, this matrix can be used to modulate the statistical weight of photons in a phase-space file simulating the linear accelerator from the source to this height. The modulated phase-space can be used to run Monte Carlo calculations through simulated phantoms. Assumptions regarding the EPID's electromechanical behaviour, as well as regarding beam divergence, were validated. This method was compared and validated against our centre's treatment planning system, for various configurations of the beam-modulating system, in two non-patient phantoms (water and anthropomorphic). The new procedure matched well with film measurements, consistently providing a higher percentage (~10%-15% higher) of pixels with Gamma-Dose (3mm Distance-To-Agreement, 3% Dose-Difference criteria) less than 1, versus the TPS-based dose distributions. This indicates that the EPID-based fluence is more accurate than the TPS-based fluence. This so-called MCEF (Monte Carlo with EPID-based Fluence) procedure can be extended by utilizing Cone-Beam CT (CBCT) to account for any setup errors or physiological changes in the patient. By coupling the EPID-based fluence with CBCT-based phantoms, we believe this method will accurately mimic true 3D in-vivo dosimetry.
The oscillating two-cluster chimera state in non-locally coupled phase oscillators
Creators: name: Zhu, Yun
name: Li, Yuting
name: Zhang, Mei
name: Yang, Junzhong
Publisher: name: arXiv
Year: 2011
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: We investigate an array of identical phase oscillators non-locally coupled without time delay, and find that chimera state with two coherent clusters exists which is only reported in delay-coupled systems previously. Moreover, we find that the chimera state is not stationary for any finite number of oscillators. The existence of the two-cluster chimera state and its time-dependent behaviors for finite number of oscillators are confirmed by the theoretical analysis based on the self-consistency treatment and the Ott-Antonsen ansatz.
Amtliche Mitteilungen der Technischen Universität Dortmund Nr. 29/2020
Creators: name: (:Unkn) Unknown
Publisher: name: Technische Universität Dortmund
Year: 2020
Subjects: subject: 080

description: Zweite Ordnung zur Änderung der Verwaltungs- und Benutzungsordnung des Zentrums für HochschulBildung (zhb) vom 8. Dezember 2020
description: Amtliche Mitteilungen der Technischen Universität Dortmund;2020, 29
Characterization of catch and bycatch in the state gillnet fisheries of Alabama, Mississippi, and Louisiana, 2012-2015.
Creators: name: Mathers, Alyssa N. (Alyssa Napier)
name: Deacy, Bethany M.
name: Carlson, John K. (John Keith), 1966-
Publisher: name: U.S. Department of Commerce, National Oceanic and Atmospheric Administration, National Marine Fisheries Service, Southeast Fisheries Science Center, Panama City Laboratory
Year: 2016
Subjects: subject: Gillnetting--Alabama--Management.
subject: Gillnetting--Louisiana--Management.
subject: Gillnetting--Mississippi--Management.

description: The Southeast Gillnet Observer Program (SGOP) in the SEFSC-Panama City Laboratory has monitored coastal gillnet fisheries with on-board observers since the program began in 1993 (e.g. Mathers et al. 2015 and references therein). There are numerous active gillnet fisheries in Federal waters of the U.S. Atlantic coast and Gulf of Mexico, but the number of gillnet fishers changes from year to year. Depending on time of the year and market conditions, fishers will target a diversity of species such as Spanish mackerel Scomberomorus maculatus, king mackerel Scomberomorus cavalla, and bluefish Pomatomus saltatrix, as well as sharks and dogfish with varying types of gillnet gear. These fisheries have also resulted in interactions with protected species (i.e. marine mammals, sea turtles, sea birds, Atlantic sturgeon, and sawfish) with 61 observed interactions since 1993. However, most observer effort has occurred in Federal waters and little is known regarding fishing effort, catch, bycatch and interactions with protected species INgillnet vessels operating in State waters. While many states have banned gillnets in state water, some states still permit commercial fishing activities using gillnets to harvest their catch. To better characterize fishing effort, catch and bycatch, and interactions with protected resources, the Southeast Gillnet Observer Program began observer coverage on state documented commercial gillnet vessels in coastal Louisiana, Mississippi, and Alabama in November 2012. This report describes a summary of observations from 2012 to 2015.
title: An extendable key space integer image-cipher using 4-bit piece-wise linear cat map
Creators: name: Gnyamsi Nkuigwa, Gaetan Gildas
name: Djeugoue Nzeuga, Hermann
name: Eyebe Fouda, Jean Sire Armand
name: Sabat, Samrat L.
name: Koepf, Wolfram
Publisher: name: Universität Kassel
Year: 2022
Subjects: subject: Cryptography
subject: Modular arithmetic
subject: Random integers
subject: Security analysis
subject: 510
subject: Kryptologie
subject: Informationssicherheit
subject: Zufallszahlen

description: Gefördert im Rahmen des Projekts DEAL
Non-destructive imaging of an individual protein
Creators: name: Longchamp, Jean-Nicolas
name: Latychevskaia, Tatiana
name: Escher, Conrad
name: Fink, Hans-Werner
Publisher: name: arXiv
Year: 2012
Subjects: subject: Biological Physics (physics.bio-ph)
subject: FOS: Physical sciences

description: The mode of action of proteins is to a large extent given by their ability to adopt different conformations. This is why imaging single biomolecules at atomic resolution is one of the ultimate goals of biophysics and structural biology. The existing protein database has emerged from X-ray crystallography, NMR or cryo-TEM investigations. However, these tools all require averaging over a large number of proteins and thus over different conformations. This of course results in the loss of structural information. Likewise it has been shown that even the emergent X-FEL technique will not get away without averaging over a large quantity of molecules. Here we report the first recordings of a protein at sub-nanometer resolution obtained from one individual ferritin by means of low-energy electron holography. One single protein could be imaged for an extended period of time without any sign of radiation damage. Since ferritin exhibits an iron core, the holographic reconstructions could also be cross-validated against TEM images of the very same molecule by imaging the iron cluster inside the molecule while the protein shell is decomposed.
Feature Selection using the concept of Peafowl Mating in IDS
Creators: name: Ghosh, Partha
name: Sharma, Joy
name: Pandey, Nilesh
Publisher: name: arXiv
Year: 2024
Subjects: subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Cloud computing has high applicability as an Internet based service that relies on sharing computing resources. Cloud computing provides services that are Infrastructure based, Platform based and Software based. The popularity of this technology is due to its superb performance, high level of computing ability, low cost of services, scalability, availability and flexibility. The obtainability and openness of data in cloud environment make it vulnerable to the world of cyber-attacks. To detect the attacks Intrusion Detection System is used, that can identify the attacks and ensure information security. Such a coherent and proficient Intrusion Detection System is proposed in this paper to achieve higher certainty levels regarding safety in cloud environment. In this paper, the mating behavior of peafowl is incorporated into an optimization algorithm which in turn is used as a feature selection algorithm. The algorithm is used to reduce the huge size of cloud data so that the IDS can work efficiently on the cloud to detect intrusions. The proposed model has been experimented with NSL-KDD dataset as well as Kyoto dataset and have proved to be a better as well as an efficient IDS.
Can We Practice Sustainable Agriculture on Suboptimal Land?
Creators: name: Fawzi, Nurul Ihsan
name: Qurani, Ika Zahara
Publisher: name: figshare
Year: 2020
Subjects: subject: 70101 Agricultural Land Management
subject: FOS: Other agricultural sciences
subject: 70102 Agricultural Land Planning

description: Suboptimal land agriculture is often seen undesirable as it requires more complicated land preparation, high maintenance, which result in higher cost. Nevertheless, utilization of this land is inevitable as arable landcontinues to shrink over the years due to conversion to non-agricultural purposes. It should always be noted that farming in suboptimal land should be intended for optimum yields, instead of the maximum. There is growing evidence that the key to sustaining suboptimal land agriculture primarily lies on how we manage the water system properly. Multiple cases including lowland swamp farming in Palembang, dryland agriculture in Aceh, and desert farming in UAE are indicating progress in sustainable use of suboptimal land.
Model-Checking the Higher-Dimensional Modal mu-Calculus
Creators: name: Lange, Martin
name: Lozes, Etienne
Publisher: name: arXiv
Year: 2012
Subjects: subject: Logic in Computer Science (cs.LO)
subject: Formal Languages and Automata Theory (cs.FL)
subject: FOS: Computer and information sciences
subject: F.4.1, F.2.m, F.3.0

description: The higher-dimensional modal mu-calculus is an extension of the mu-calculus in which formulas are interpreted in tuples of states of a labeled transition system. Every property that can be expressed in this logic can be checked in polynomial time, and conversely every polynomial-time decidable problem that has a bisimulation-invariant encoding into labeled transition systems can also be defined in the higher-dimensional modal mu-calculus. We exemplify the latter connection by giving several examples of decision problems which reduce to model checking of the higher-dimensional modal mu-calculus for some fixed formulas. This way generic model checking algorithms for the logic can then be used via partial evaluation in order to obtain algorithms for theses problems which may benefit from improvements that are well-established in the field of program verification, namely on-the-fly and symbolic techniques. The aim of this work is to extend such techniques to other fields as well, here exemplarily done for process equivalences, automata theory, parsing, string problems, and games.
description: In Proceedings FICS 2012, arXiv:1202.3174
Reversible hydrogenation and band gap opening of graphene and graphite surfaces probed by scanning tunneling spectroscopy
Creators: name: Castellanos-Gomez, Andres
name: Wojtaszek, Magdalena
name: Arramel
name: Tombros, Nikolaos
name: van Wees, Bart J.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The effect of hydrogenation on the topography and the electronic properties of graphene and graphite surfaces are studied by scanning tunneling microscopy and spectroscopy. The surfaces are chemically modified using Ar/H2 plasma. Analyzing thousands of scanning tunneling spectroscopy measurements we determine that the hydrogen chemisorption on the surface of graphite/graphene opens on average an energy band gap of 0.4 eV around the Fermi level. We find that although the plasma treatment modifies the surface topography in a non-reversible way, the change in the electronic properties can be reversed by a moderate thermal annealing and the samples can be hydrogenated again yielding a similar, but slightly reduced, semiconducting behavior after the second hydrogenation.
description: Includes Supplementary Information
USIA Poll # 1964-STDT: Students of the University of Chile
Creators: name: USIA
Publisher: name: Roper Center for Public Opinion Research
Year: 2020

description: Most important problem facing Chile; evaluation of Chilean development; obstacles to Chilean development; desirability of rapid change; necessity of violence to effect change; degree of influence of various listed groups (e.g., politicians, labor); knowledge of and attitude toward socialism, communism, capitalism; best governmental system and degree of political freedom for Chile; preference for government or private ownership of industry; attitude toward expropriation of foreign-owned industry; appropriate extent of compensation for expropriated industry; advisability of military officers' participation in politics; assessment of military's, US attitude toward change in Chile; concurrence of military's and respondent's political views; preference for military or constitutional government in times of crisis; attitude toward Brazil, Argentina, the USSR, US, China; knowledge, evaluation, expected effectiveness of the "Organization of American States" (OAS); attitude toward Fidel Castro; past and expected changes in living conditions during Castro's regime; attitude toward US policy in Cuba; degree of, change in, desirable degree of Castro's influence in Chile; advisability of US aid to Chilean development; effect of foreign-owned companies, US economic policy in Chile; companies harmful to Chile; purpose of, attitude toward, responsibility for success or failure of, progress of the "Alliance for Progress" (AFP); knowledge of AFP projects in Chile; emphasis in AFP on self-help or US aid; adequacy of Chilean and US support for AFP; expected division of funds between US and AFP member countries; advisability of repaying US aid; criteria for receiving AFP aid and attitude toward same; concurrence of US and Chilean interests; projected strongest world power in the future; advisability of alliance with the US or USSR; frequency of newspaper and magazine reading, movie-going, radio news listening, TV watching; newspapers, newspaper sections, magazines read; radio news listening habits; radio news stations preferred; frequency of listening to various listed shortwave radio stations; TV channel and program references; books bought recently and average cost of same; foreign travel experience; most and least reliable sources of foreign news; interest in politics and age at which became interested; likelihood of being asked about politics; liberalism or conservatism of respondent and various listed groups (e.g., Chilean and US government, students); expected change in ideology of students in the future; party preference; attitude toward representative nature of the "Federation of Chilean students" (FECh); knowledge of FECh Union; weekly hours worked; career plans.
SingleCellMultiModal: Integrating multi-modal single cell experiment datasets
Creators: name: Eckenrode, Kelly
name: Ramos, Marcel
name: Righelli, Dario
name: Argelaguet, Richard
name: Geistlinger, Ludwig
name: Risso, Davide
name: Waldron, Levi
Publisher: name: F1000 Research Limited
Year: 2020

description: Developments in sequencing and computational technology have created a surge of single cell multimodal experimental methods which assay complementary molecular data on the same individual cells. However, analysis of these data is hindered by complex and non-standard data representation, manipulation, and analysis. We present a new Bioconductor package, SingleCellMultiModal, that provides ready-to-use datasets from mouse and human samples for benchmarking and methods development from single-cell multimodal technologies including CITE-seq, scNMT, and seqFISH. SingleCellMultiModal provides pre-processed datasets using the integrative MultiAssayExperiment Bioconductor class to coordinate management of multiple experimental assays performed on an overlapping set of cells and samples. The package is intended to facilitate development of bioinformatic and statistical methods in Bioconductor to meet the challenges of tracking molecular layers to phenotypic outputs including cell differentiation, activity, and disease.