cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Efectos del uso de estrategias de autoevaluación en el desarrollo de habilidades de producción en inglés
Creators: name: Vivas Vivas, Johanna Del Pilar
Publisher: name: Universidad Externado de Colombia
Year: 2020
Subjects: subject: Evaluación académica - Estudios de caso
subject: Pedagogía - Enseñanza
subject: Educación - Aspectos sociales
subject: Autoevaluación
subject: Aprendizaje
subject: Metacognición
subject: Evaluación formativa
subject: Lengua extranjera

description: La presente investigación, se enmarca en el énfasis de evaluación de los aprendizajes, identifica los efectos que se generan en el proceso de aprendizaje en lengua extranjera (L2) al incluir estrategias de autoevaluación en la clase del aula de inmersión del Colegio Nuevo Chile IED. La autoevaluación se presenta como un aspecto importante en los procesos de enseñanza y aprendizaje, pues se une con la evaluación formativa para evaluar el nivel de responsabilidad del estudiante con su proceso. Esta investigación presenta el proceso de aplicación y monitoreo de la implementación de estrategias de autoevaluación, con el fin de identificar los efectos de éstas en el desarrollo de las habilidades de producción en L2, teniendo en cuenta la teoría que soporta esta investigación, los resultados obtenidos se registraron en las estrategias de autoevaluación (EXIT TICKET- stair rubric), entrevistas (inicial- final), pruebas (inicial-final) y en un formato de observación participativa, que permitieron identificar los efectos a nivel metacognitivo y en producción en L2 que fortalecieron el desarrollo de las habilidades de producción de los estudiantes de grado sexto, participantes del proyecto del aula de inmersión.
Relationship between an altered membrane form and a low affinity form of the beta-adrenergic receptor occurring during catecholamine-induced desensitization. Evidence for receptor internalization.
Creators: name: The University of North Carolina at Chapel Hill University Libraries
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1984

description: Etude de la relation entre la production induite par la catécholamine, dans les cellules d'astrocytome humain 1321N1, de récepteurs β-adrénergiques qui ont une affinité apparente faible pour les ligands hydrophiles.
Additional file 2: of Genetic insights into fetal growth and measures of glycaemic regulation and adiposity in adulthood: a family-based study
Creators: name: Hollensted, Mette
name: EkstrĂ¸M, Claus
name: Pedersen, Oluf
name: Eiberg, Hans
name: Hansen, Torben
name: Gjesing, Anette
Publisher: name: figshare
Year: 2018
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Physiology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: 60506 Virology
subject: Computational Biology

description: Calculation of insulin secretion indices. BIGTT-AIR: index for acute insulin response, BMI: body mass index, HOMA-B: HOMA for beta cell function, HOMA-IR: HOMA for insulin resistance. (DOCX 12 kb)
The complete nucleotide sequence of a beta-globin-like structure, beta h2, from the [Hbb] d mouse BALB/c.
Creators: name: Edgell, M H
name: Jahn, C L
name: Hardies, S C
name: Phillips, S J
name: Hutchison, C A
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1984

description: We have determined the complete nucleotide sequence of beta h2, a pseudogene in the mouse beta-globin gene complex. The structure of beta h2 is analogous to that of a normal beta-globin gene, and its nucleotide sequence shares 72% homology with the coding regions of a reference mouse adult beta-globin gene. A frame shift occurs in the first coding region for which a compensatory splicing scheme can be devised. The reading frame is not otherwise disrupted. All of the recognized transcription, translation, and splicing signals in beta h2 are intact, with the exception of the " CCAAT box," which has been altered to GTAAC . We compared the predicted amino acid sequence of beta h2 with other beta-globin sequences. Evidence for a period of divergence without selection in the history of beta h2 was found in a set of codons that are usually highly conserved in productive beta-globin genes. An evolutionary tree constructed from nucleotide sequence suggests that beta h2 originated from the adult genes at least 60 million years ago. After some period as a productive gene, beta h2 was inactivated and has subsequently diverged without selection. Hybridization experiments demonstrated that beta h2 and the surrounding region occur without major alteration in other rodent species. The sequence ( AGCCA - 4n - GTGT ) occurs 5' of the CCAAT box in beta h2 and in many productive globin genes.
High-Energy Tests of Lorentz Invariance
Creators: name: Coleman, Sidney
name: Glashow, Sheldon L.
Publisher: name: arXiv
Year: 1998
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We develop a perturbative framework with which to discuss departures from exact Lorentz invariance and explore their potentially observable ramifications. Tiny non-invariant terms introduced into the standard model Lagrangian are assumed to be renormalizable (dimension $\le 4$), invariant under $SU(3)\otimes SU(2)\otimes U(1)$ gauge transformations, and rotationally and translationally invariant in a preferred frame. There are a total of 46 independent TCP-even perturbations of this kind, all of which preserve anomaly cancellation. They define the energy-momentum eigenstates and their maximal attainable velocities in the high-energy limit. The effects of these perturbations increase rapidly with energy in the preferred frame, more rapidly than those of TCP-odd perturbations. Our analysis of Lorentz-violating kinematics reveals several striking new phenomena that are relevant both to cosmic-ray physics ({\it e.g.,} by undoing the GZK cutoff) and neutrino physics ({\it e.g.,} by generating novel types of neutrino oscillations). These may lead to new and sensitive high-energy tests of special relativity.
description: 33 pages, uses harvmac. This 2nd revision corrects two typos, an error in the Appendix, and includes further acknowledgements
Additional file 1: of Intimate partner violence and associated factors among pregnant women in Ethiopia: a systematic review and meta-analysis
Creators: name: Animut Alebel
name: Getiye Kibret
name: Fasil Wagnew
name: Cheru Tesema
name: Aster Ferede
name: Pammla Petrucka
name: Firew Bobo
name: Molla Birhanu
name: Animen Tadesse
name: Setegn Eshetie
Publisher: name: figshare
Year: 2018
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Developmental Biology
subject: Science Policy

description: PRISMA 2009 Checklist. (DOC 64 kb)
Pheidole agricola Wilson, 2003, new species
Creators: name: Wilson, E. O.
Publisher: name: Harvard University Press
Year: 2003
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Formicidae
Pheidole
Pheidole agricola

description: Pheidole agricola new species
Types Mus. Comp. Zool. Harvard.
Etymology L agricola, field-dweller, referring to the collection site of the type series.
Diagnosis A distinctive member of the pilifera group recognizable by the following combination of traits. Major: reddish yellow; medium-sized; with dense, very long, erect to suberect pilosity on the dorsal surface of the body; prominent, broad semicircular notch in anterior clypeal border; relatively long, thin propodeal spines, faintly bilobed pronotal profile in dorsaloblique view; carinulae confined on head to the anterior third, and elsewhere to the anterior half of the pronotal dorsum; rest of body smooth and shiny.
Minor: light brown; pilosity of dorsal surface of body abundant, very long, and erect to suberect; propodeal spines reduced to denticles; body almost completely smooth and shiny.
Measurements (mm) Holotype major: HW 1.18, HL 1.38, SL 0.66, EL 0.16, PW 0.54.
Paratype minor: HW 0.52, HL 0.60, SL 0.60, EL 0.12, PW 0.34.
Color Major: concolorous reddish yellow.
Minor: concolorous light brown.
Range Known only from the type locality.
Biology The colony was found in an agricultural field created by clear-cutting and burning.
Figure Upper: holotype, major. Lower: paratype, minor. MEXICO: 24 km southwest of Cintalpa, Chiapas, 710 m (William P. MacKay). Scale bars = 1 mm.
description: Published as part of Wilson, E. O., 2003, Pheidole in the New World. A dominant, hyperdiverse ant genus., Cambridge, MA :Harvard University Press on page 556
Escape of High Energy Particles from Bow-Shock Pulsar Wind Nebulae
Creators: name: Bucciantini, N.
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The detection of bright X-ray features and large TeV halos around old pulsars that have escaped their parent Supernova Remnants and are interacting directly with the ISM, suggest that high energy particles, more likely high energy pairs, can escape from these systems, and that this escape if far more complex than a simple diffusive model can predict. Here we present for the first time a detailed analysis of how high energy particles escape from the head of the bow shock. In particular we focus our attention on the role of the magnetic field geometry, and the inclination of the pulsar spin axis with respect to the direction of the pulsar kick velocity. We show that asymmetries in the escape pattern of charged particles are common, and they are strongly energy dependent. More interestingly we show that the flow of particles from bow-shock pulsar wind nebulae is likely to be charge separated, which might have profound consequences on the way such flow interacts with the ISM magnetic field, driving local turbulence.
description: 8 pages, 4 figures, accepted for publication in MNRAS
Conformal Phase Transition and Fate of the Hidden Local Symmetry in Large N_f QCD
Creators: name: Harada, Masayasu
name: Yamawaki, Koichi
Publisher: name: arXiv
Year: 1999
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: It is observed that the Hidden Local Symmetry (HLS) for the vector mesons in the ordinary QCD with smaller N_f plays the role of the "Higgsed magnetic gauge symmetry" for the Seiberg duality in the SUSY QCD. For large N_f where the conformal phase transition with chiral restoration and deconfinement is expected to take place, we find that the HLS model also exhibits the chiral restoration by the loop corrections (including the quadratic divergence) in a manner similar to that in the CP^{N-1} model, provided that the bare HLS Lagrangian respects the Georgi's vector limit at a certain N_f (\approx 7).
description: 4 Pages (RevTeX), 3 PS figures are included Minor corrections are made for the introductory part. This is the version to appear in Physical Review Letters
Producción de textos informativos a partir del trabajo cooperativo
Creators: name: Álvarez Beltrán, Marcela Cristina
Publisher: name: Universidad Externado de Colombia
Year: 2020
Subjects: subject: Pedagogía - Enseñanza
subject: Escritura - Enseñanza básica
subject: Educación - Aspectos sociales
subject: Trabajo cooperativo
subject: Producción textual
subject: Habilidades escriturales
subject: Textos informativos

description: Trabajo de investigación de tipo cualitativo en el marco de la maestría en educación. La implementación de la intervención pedagógica tuvo su escenario en el colegio Manuel Cepeda Vargas de la localidad de Kennedy y se llevó a cabo con los estudiantes de grado cuarto en el área de lenguaje. Dicha intervención se centró en el trabajo cooperativo como estrategia de aprendizaje y desarrollo de habilidades escriturales, mediante una serie de estrategias orientadas a la producción de textos informativos como la noticia con el fin de superar las dificultades presentadas en los procesos y subprocesos que se llevan a cabo en el momento de redactar un texto y así, cualificar el proceso de escritura.
The mouse globin pseudogene beta h3 is descended from a premammalian delta-globin gene.
Creators: name: Padgett, Richard
name: Hardies, Stephen
name: Hutchison, Clyde
name: Edgell, MH
name: Weaver, S
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1984

description: The beta h3 pseudogene of the BALB/c mouse contains sequence defects which prevent transcription and translation to produce a beta-globin. Comparison with other globin gene sequences indicates that beta h3 arose by recombination between an adult beta-globin gene and some significantly diverged globin sequence. Analysis of noncoding sequences shows that the 3' end of mouse beta h3 and the human delta-globin gene are both descended from an ancestral gene, which we call proto-delta. The origin of proto-delta must predate the mammalian radiation. A member of the L1 family of interspersed repetitive elements is inserted into the 3' untranslated delta-homologous sequence in beta h3 from BALB/c. beta h3 is a widespread feature of the rodent beta-globin complex, which has been fixed in the genome for 35 million years. Independent inactivation events produced pseudogenes located between the adult and nonadult beta-globin genes in the rodent, primate, rabbit, and goat lineages. One model to explain the abundance and evolutionary persistence of pseudogenes postulates that the mammalian genome simply has no efficient mechanism for deleting nonessential sequences. Consequently, the genomes of higher eukaryotes have been growing, by the accumulation of duplications, with doubling times of 200 +/- 100 million years.
Competencias emocionales y convivencia escolar de los estudiantes de grado cuarto en el Liceo Nacional Antonia Santos I.E.D
Creators: name: Álvarez Penagos, Miguel Ángel
Publisher: name: Universidad Externado de Colombia
Year: 2020
Subjects: subject: Educación primaria - Enseñanza
subject: Pedagogía - Aspectos sociales
subject: Educación - Estudios de caso
subject: Emociones
subject: Violencia en la escuela
subject: Desarrollo humano

description: La investigación es sobre el estudio de las competencias emocionales de los estudiantes de grado cuarto del colegio Liceo Nacional Antonia Santos I.E.D jornada tarde, y la identificación de los elementos que interactúan con las relaciones sociales que se presentan en la institución educativa y que son en ocasiones manifestaciones violentas. Razón por la cual se hace necesario conocer el contexto y Desarrollo Humano de las familias de los estudiantes, para entender cómo su formación inicial incide en el desarrollo de sus competencias emocionales, luego identificar esas competencias desde el actuar de los estudiantes dentro de la institución educativa, y finalmente proponer estrategias pedagógicas que ayuden a los docentes, padres de familia y estudiantes a identificar cómo los estados de ánimo influyen en la forma de actuar en el diario vivir de todo ser humano. La investigación se realiza en el Colegio Liceo Nacional Antonia Santos, IED ubicado en la localidad de los Mártires, en la ciudad de Bogotá, institución educativa de carácter público, conformada por 840 estudiantes en la jornada de la tarde, con una muestra de tipo no probabilístico conformada por 31 estudiantes del grado cuarto, con un rango de edad entre 7 a 9 años, que viven en hogares con un estrato socio económico en su mayoría bajo.
Estrategias de participación desde la gestión escolar para la escuela de padres del Gimnasio Superior Nuevos Andes
Creators: name: Avila Sierra, Diego Alejandro
Publisher: name: Universidad Externado de Colombia
Year: 2020
Subjects: subject: Educación primaria - Colombia
subject: Pedagogía - Enseñanza
subject: Aprendizaje - Estudios de caso
subject: Escuela
subject: Padres de Familia
subject: Gestión
subject: Talleres
subject: Estrategias
subject: Comunicación

description: La investigación está constituida en cinco capítulos. El primero refiere la contextualización de la institución, su población, problematización, pregunta, objetivos, justificación y antecedentes del problema. El segundo capítulo marco de referencia, establece la parte conceptual definiendo inicialmente el contexto del Gimnasio Superior Nuevos Andes, gestión escolar de la institución; participación de los padres de familia, estamentos y órganos de la institución educativa que desarrollan las estrategias de participación para la escuela de padres. El tercer capítulo presenta la metodología, el enfoque y tipo de investigación, la población y muestra, la matriz de categorías; la aplicación de instrumentos como encuestas, grupos focales y entrevistas, y finalmente se organizaron y analizaron los datos. En el capítulo IV se analizan las fortalezas y debilidades de las estrategias desarrolladas desde la gestión escolar para la escuela de padres, contrastándolas con los referentes conceptuales mencionados en el segundo capítulo e interpretando los hallazgos hacia los objetivos de esta investigación con cada instrumento y técnica de recolección de datos, finalmente, en el capítulo V se establecen las conclusiones y recomendaciones que contribuyan a fortalecer los procesos que adelanta la gestión escolar en relación con la escuela de padres en esta institución u otras.
Lattice QCD Calculations of the Sigma Commutator
Creators: name: Leinweber, D. B.
name: Thomas, A. W.
name: Wright, S. V.
Publisher: name: arXiv
Year: 2000
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: As a direct source of information on chiral symmetry breaking within QCD, the sigma commutator is of considerable importance. With recent advances in the calculation of hadron masses within full QCD it is of interest to see whether the sigma commutator can be calculated directly from the dependence of the nucleon mass on the input quark mass. We show that provided the correct chiral behaviour of QCD is respected in the extrapolation to realistic quark masses one can indeed obtain a fairly reliable determination of the sigma commutator using present lattice data. Within two-flavour, dynamical-fermion QCD the value obtained lies in the range 45 to 55 MeV.
description: 7 pages, 2 figures
Cuerpo y corporeidad según los actores educativos del Colegio Paraíso Mirador I.E.D
Creators: name: Ayala Sánchez, Katherine Andrea
Publisher: name: Universidad Externado de Colombia
Year: 2020
Subjects: subject: Personal docente - Colombia
subject: Pedagogía - Enseñanza
subject: Desarrollo humano - Aspectos sociales
subject: Cuerpo
subject: Corporeidad
subject: Desarrollo humano
subject: Valores
subject: Educación

description: La presente investigación caracteriza las concepciones y prácticas de cuerpo-corporeidad de los estudiantes, docentes y padres de familia del curso 801 del Colegio Paraíso Mirador en relación al desarrollo humano y valores. De esta manera el reconocimiento de las ideas del cuerpo a través de la historia, permitieron la identificación de aquellos pensamientos y sensaciones que se generan en los actores educativos desde la relación corporal que tiene consigo mismo y con los demás. Así mismo la interacción que el cuerpo establece en los espacios educativos, permitieron conocer la concepción de corporeidad desde una mirada de la educación. Para describir las prácticas de corporeidad se elaboró un reconocimiento de las expresiones deportivas, artísticas, lúdicas y ecológicas, que permitieron reconocer como es la vivencia del cuerpo en dichas prácticas. Adicionalmente entendida la corporeidad como principio del desarrollo humano y valores, se describe el enfoque de desarrollo humano y valores de los actores educativos tanto en sus concepciones como en las practicas.
Two mouse early embryonic beta-globin gene sequences. Evolution of the nonadult beta-globins.
Creators: name: Davis, M
name: Hill, A
name: Phillips, S
name: Hutchison, C
name: Hardies, S
name: Edgell, M
name: Edgell, Marshall
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1984

description: We have determined the complete nucleotide sequence of two early embryonic beta-globin genes of the BALB/c mouse: beta h0 and beta h1 X beta h1 codes for the embryonic z protein, while the beta h0 gene may be a minor early embryonic beta-globin gene. The general sequence organization of both genes is entirely analogous to other functional globin genes. There is, however, a 220-base pair insertion of unique sequence within the first intron of beta h0 X beta h0 and beta h1 are 96% homologous for 260 base pairs 5' to the AUG initiation codon, and 93% homologous throughout their coding regions. Analysis of the 5'-flanking sequence demonstrates that these genes are more nonadult-like than adult-like. The sequences show evidence for gene conversions among the mouse nonadult beta-globin genes that were limited to individual exons, presumably by the presence of non-homologous introns. We propose that this arrangement has the beneficial evolutionary effect of allowing gene conversion to act independently on regions of the protein with different structural or functional responsibilities. beta h0 and beta h1 are evolutionary homologs to the human fetal and rabbit beta 3 genes, while their manner of expression is similar to rabbit beta 3 and dissimilar to human fetal expression. The evolutionary history of the human beta-globin genes, therefore, includes the recruitment of an embryonic gene to fetal developmental control.
Computations of Three-Body Continuum Spectra
Creators: name: Cobis, A.
name: Fedorov, D. V.
name: Jensen, A. S.
Publisher: name: arXiv
Year: 1997
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We formulate a method to solve the coordinate space Faddeev equations for positive energies. The method employs hyperspherical coordinates and analytical expressions for the effective potentials at large distances. Realistic computations of the parameters of the resonances and the strength functions are carried out for the Borromean halo nucleus 6He (n+n+alpha) for J = 0+, 0-, 1+, 1-, 2+,2-. PACS numbers: 21.45.+v, 11.80.Jy, 31.15.Ja, 21.60.Gx
description: 10 pages, 3 postscript figures, LaTeX, epsf.sty, corrected misprints in the caption of Fig. 3
$μ\to e γ$ and $μ\to 3e$ processes with polarized muons and supersymmetric grand unified theories
Creators: name: Okada, Yasuhiro
name: Okumura, Ken-ichi
name: Shimizu, Yasuhiro
Publisher: name: arXiv
Year: 1999
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: $μ^{+} \to e^{+} γ$ and $μ^{+} \to e^{+}e^{+}e^{-}$ processes are analyzed in detail with polarized muons in supersymmetric grand unified theories. We first present Dalitz plot distribution for $μ^{+} \to e^{+}e^{+}e^{-}$ decay based on effective Lagrangian with general lepton-flavor-violating couplings and define various P- and T-odd asymmetries. We calculate branching ratios and asymmetries in supersymmetric SU(5) and SO(10) models taking into account complex soft supersymmetry breaking terms. Imposing constraints from experimental bounds on the electron, neutron and atomic electric dipole moments, we find that the T-odd asymmetry for $μ^{+} \to e^{+}e^{+}e^{-}$ can be 15% in the SU(5) case. P-odd asymmetry with respect to muon polarization for $μ^{+} \to e^{+} γ$ varies from -20% to -100% for the SO(10) model while it is $+100%$ in the SU(5) case. We also show that the P-odd asymmetries in $μ^{+} \to e^{+}e^{+}e^{-}$ and the ratio of $μ^{+} \to e^{+}e^{+}e^{-}$ and $μ^{+} \to e^{+} γ$ branching fractions are useful to distinguish different models.
description: 52 pages, 15 figures
Pheidole aurea Wilson, 2003, new species
Creators: name: Wilson, E. O.
Publisher: name: Harvard University Press
Year: 2003
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Formicidae
Pheidole
Pheidole aurea

description: Pheidole aurea new species
Types Mus. Comp. Zool. Harvard.
ETYMOLOGY L aurea, gold, referring to the yellow color of both worker castes, and the type locality (El Dorado).
diagnosis A member of the " bicarinata complex" of the larger pilifera group, comprising agricola, aurea, bajaensis, barbata, bicarinata, centeotl, cerebrosior, defecta, gilvescens, macclendoni, macrops, marcidula, paiute, pinealis, psammophila, vinelandica, xerophila, yaqui, and yucatana; which complex is characterized by the large to very large forward-set eyes of both castes; and in the major, the occipital lobes lacking any sculpturing (except in aurea); the posterior half of the head capsule almost entirely smooth and shiny; and the postpetiolar node seen from above oval, elliptical, or laterally angulate (cornulate in cerebrosior).
P. aurea in particular is distinguished by the following combination of traits.
Major: yellow; occiput with narrow band of transverse rugulae, which do not extend all the way across the occipital lobes; propodeal spines blunt, equilaterally triangular; humerus subangulate in dorsal-oblique view; postpetiolar node elliptical when seen from above. Minor: clavate hairs present on promesonotal dorsum.
Measurements (mm) Holotype major: HW 0.84, HL 0.92, SL 0.50, EL 0.20, PW 0.40.
Paratype minor: HW 0.42, HL 0.48, SL 0.46, EL 0.12, PW 0.26.
Color Major: medium yellow, head slightly darker in shade than rest of body.
Minor: concolorous medium yellow.
Range Known only from the type locality.
BioiLOGY Unknown.
Figure Upper: holotype, major. Lower: paratype, minor. TEXAS: 5 km northwest of Eldorado, Schleicher Co. (O. F. Francke). Scale bars = 1 mm.
description: Published as part of Wilson, E. O., 2003, Pheidole in the New World. A dominant, hyperdiverse ant genus., Cambridge, MA :Harvard University Press on page 557
Unitarity corrections to K+ -> pi+ gamma l+l-
Creators: name: Gabbiani, Fabrizio
Publisher: name: arXiv
Year: 1998
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We perform a chiral one-loop calculation of the unitarity corrections to the processes K+ -> pi+ gamma l+l- up to O(E^6), taking into account pi+pi- intermediate states. Branching ratios and differential branching ratios are computed and presented to demonstrate the importance of the above corrections.
description: 18 pages, 13 eps figures. LaTeX, uses epsfig.sty. Version accepted for publication on Phys. Rev. D. Misprints corrected
Determination of cosmological parameters: an introduction for non-specialists
Creators: name: Pal, Palash B.
Publisher: name: arXiv
Year: 1999
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: I start by defining the cosmological parameters $H_0, Ω_m$ and $Ω_Λ$. Then I show how the age of the universe depends on them, followed by the evolution of the scale parameter of the universe for various values of the density parameters. Then I define strategies for measuring them, and show the results for the recent determination of these parameters from measurements on supernovas of type 1a. Implications for particle physics is briefly discussed at the end.
description: 12 pages, Latex with epsf.sty. Invited talk at the ``Discussion meeting on Recent Developments in Neutrino Physics'', held at the Physical Research Laboratory, Ahmedabad, February 2--4, 1999
A comparison of catecholamine-induced internalization of beta-adrenergic receptors and receptor-mediated endocytosis of epidermal growth factor in human astrocytoma cells. Inhibition by phenylarsine oxide.
Creators: name: The University of North Carolina at Chapel Hill University Libraries
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1985

description: The ligand-induced internalization of beta-adrenergic receptors and the receptor-mediated internalization of epidermal growth factor were blocked, under similar conditions, by phenylarsine oxide (PAO) in human astrocytoma cells (1321N1). The inhibition was not prevented or reversed by monofunctional sulfhydryl agents such as 2-mercaptoethanol or glutathione; however, the inhibitory action of PAO was blocked and reversed by bifunctional thiols such as 2,3-dimercaptoethanol or dithiothreitol. The results are consistent with the interaction of PAO with vicinal sulfhydryl groups to form a stabile ring structure. PAO did not prevent isoproterenol-induced uncoupling (desensitization) of beta-adrenergic receptors even though receptor internalization was completely blocked. The effects of PAO on receptor internalization could not be explained by any action of the trivalent arsenical to lower ATP levels. Ligand binding to both receptors was not detectably altered by PAO under conditions selective for inhibition for endocytosis. The results suggest a common mechanism for internalization of beta-adrenergic receptors and epidermal growth factor by a process that involves vicinal sulfhydryl groups.
Vortex multistability and Bessel vortices in polariton condensates
Creators: name: Ma, Xuekai
name: Schumacher, Stefan
Publisher: name: arXiv
Year: 2018
Subjects: subject: Optics (physics.optics)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Vortices are topological objects formed in coherent nonlinear systems. As such they are studied in a wide number of physical systems and promise applications in information storage, processing, and communication. In semiconductor microcavities, vortices in polariton condensates can be conveniently created, studied, and manipulated using solely optical means. For non-resonant excitation with a ring-shaped pump a stable vortex can be formed, leading to bistability with left- and righthanded vorticity. In the present work we report on a much richer vortex multistability, with optically addressable vortices with topological charges |m|=1, 2, and 3, all stable for the same system and excitation parameters. This unusual multistable behavior is rooted in the inherent nonlinear feedback between reservoir excitations and condensate in the microcavity. For larger radius of the ring shaped pump we also find a Bessel vortex with its characteristic spiralling phase in the high density region and pronounced self-stabilization ability. Our theoretical results open up exciting possibilities for optical manipulation of vortex multiplets in a compact semiconductor system.
description: 6 pages and 6 figures
Randomly Broken Nuclei and Disordered Systems
Creators: name: Chase, K. C.
name: Bhattacharyya, P.
name: Mekjian, A. Z.
Publisher: name: arXiv
Year: 1997
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Similarities between models of fragmenting nuclei and disordered systems in condensed matter suggest corresponding methods. Several theoretical models of fragmentation investigated in this fashion show marked differences, indicating possible new methods for distinguishing models using yield data. Applying nuclear methods to disordered systems also yields interesting results.
description: 10 pages, 4 figures
Agonist-induced alteration in the membrane form of muscarinic cholinergic receptors
Creators: name: Waldo, G L
name: Traynelis, S F
name: Petch, L A
name: Harden, T K
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1985

description: Incubation of 1321N1 human astrocytoma cells with carbachol resulted in a rapid loss of binding of [3H]N-methylscopolamine ([3H]NMS) to muscarinic cholinergic receptors measured at 4 degrees C on intact cells; loss of muscarinic receptors in lysates from the same cells measured with [3H]quinuclidinyl benzilate [( 3H]QNB) at 37 degrees C occurred at a slower rate. Upon removal of agonist from the medium, the lost [3H]NMS binding sites measured on intact cells recovered with a t1/2 of approximately 20 min, but only to the level to which [3H]QNB binding sites had been lost; no recovery of "lost" [3H]QNB binding sites occurred over the same period. Based on these data and the arguments of Galper et al. (Galper, J. B., Dziekan, L. C., O'Hara, D. S., and Smith, T. W. (1982) J. Biol. Chem. 257, 10344-10356) regarding the relative hydrophilicity of [3H]NMS versus [3H]QNB, it is proposed that carbachol induces a rapid sequestration of muscarinic receptors that is followed by a loss of these receptors from the cell. These carbachol-induced changes are accompanied by a change in the membrane form of the muscarinic receptor. Although essentially all of the muscarinic receptors from control cells co-purified with the plasma membrane fraction on sucrose density gradients, 20-35% of the muscarinic receptors from cells treated for 30 min with 100 microM carbachol migrated to a much lower sucrose density. This conversion of muscarinic receptors to a "light vesicle" form occurred with a t1/2 approximately 10 min, and reversed with a t1/2 approximately 20 min. In contrast to previous results in this cell line regarding beta-adrenergic receptors (Harden, T. K., Cotton, C. U., Waldo, G. L., Lutton, J. K., and Perkins, J. P. (1980) Science 210, 441-443), agonist binding to muscarinic receptors in the light vesicle fraction obtained from carbachol-treated cells was still regulated by GTP. One interpretation of these data is that agonists induce an internalization of muscarinic receptors with the retention of their functional interaction with a guanine nucleotide regulatory protein.
Pheidole azteca Wilson, 2003, new species
Creators: name: Wilson, E. O.
Publisher: name: Harvard University Press
Year: 2003
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Formicidae
Pheidole
Pheidole azteca

description: Pheidole azteca new species
Types Mus. Comp. Zool. Harvard.
Etymology Named after the ancient Amerindian empire that embraced the type locality.
diagnosis A member of the pilifera group, close to hamtoni (in the fallax group) of Mexico but distinguished from it and other species of the group by the following combination of traits. Both major and minor medium reddish yellow. Major: head capsule in full-face view quadrate, as broad as long; hypostoma with only 2 teeth; propodeal spine reduced to a thick denticle; postpetiolar node from above diamond-shaped, with right-angular lateral margins; pilosity erect and very dense; a patch of rugoreticulum present between each eye and the nearest antennal fossa.
Minor: propodeal spines reduced to rudimentary broad denticles, not even apparent in side view; occiput broad, lacking nuchal collar. Measurements (mm) Holotype major: HW 1.34, HL 1.34, SL 1.14, EL 0.22, PW 0.72. Paratype minor: HW 0.72, HL 0.82, SL 1.02, EL 0.20, PW 0.46.
color Major and minor: body medium yellow with very slight reddish tinge, except for gaster, which is plain pale yellow.
Range Known only from the type locality.
Biology Unknown.
Figure Upper: holotype, major. Lower: paratype, minor. MEXICO: San Jeronimo, Mexico City (W. Lopez-Forment). Scale bars = 1 mm.
description: Published as part of Wilson, E. O., 2003, Pheidole in the New World. A dominant, hyperdiverse ant genus., Cambridge, MA :Harvard University Press on page 558
Alu RNA-protein complexes formed in vitro react with a novel lupus autoantibody
Creators: name: The University of North Carolina at Chapel Hill University Libraries
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1985

description: We have screened sera from patients with systemic lupus erythematosus for reactivity with RNA transcribed in vitro using HeLa whole cell extracts. Sera from 14 out of 114 patients precipitated an RNA transcribed by RNA polymerase III from a plasmid containing an Alu family sequence (i.e. the repetitive DNA sequence that is cut by the Alu restriction enzyme) located upstream from the human gamma G-globin gene. These Alu transcripts were not precipitated by anti-La, anti-Sm, anti-RNP or anti-Ro antibodies, suggesting that Alu RNA was precipitated by a previously undescribed lupus specificity. Analysis of [35S]methionine-labeled immunoprecipitates indicated that Alu RNA binds a protein of about 68 kDa. This protein may be Alu specific since three different Alu transcripts were precipitated by the anti-Alu sera whereas another RNA polymerase III transcript, adenovirus VA I RNA, was not precipitated by the same sera.
Simplicial complexes and complex systems
Creators: name: Salnikov, Vsevolod
name: Cassese, Daniele
name: Lambiotte, Renaud
Publisher: name: arXiv
Year: 2018
Subjects: subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Physical sciences

description: We provide a short introduction to the field of topological data analysis and discuss its possible relevance for the study of complex systems. Topological data analysis provides a set of tools to characterise the shape of data, in terms of the presence of holes or cavities between the points. The methods, based on notion of simplicial complexes, generalise standard network tools by naturally allowing for many-body interactions and providing results robust under continuous deformations of the data. We present strengths and weaknesses of current methods, as well as a range of empirical studies relevant to the field of complex systems, before identifying future methodological challenges to help understand the emergence of collective phenomena.
description: 8 pages, 4 figures
Characterization of distinct tyrosine-specific protein kinases in B and T lymphocytes
Creators: name: The University of North Carolina at Chapel Hill University Libraries
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1985

description: Etude des substrats endogènes de la protéine tyrosine kinase dans les lymphocytes T et B montrant que les deux substrats majeurs des cellules B sont fortement corrélés entre eux, de même pour ceux des cellules T mais que ces deux groupes diffèrent. De plus l'activité kinase de la fraction membrane plasmique des cellules T est inhibée par le TLCK, inhibiteur. Les récepteurs du facteur de croissance de l'épiderme (EGF), celle des cellules B ne l'est pas. Ceci suggère l'existence de 2 protéine tyrosine kinase différentes.
Urban pavements as a novel habitat for wild bees and other ground-nesting insects
Creators: name: Weber, Claudia
name: Noël, Grégoire
name: Sickel, Wiebke
name: Monaghan, Michael T.
name: Bonn, Aletta
name: Lokatis, Sophie
Publisher: name: Freie Universität Berlin
Year: 2024
Subjects: subject: eDNA
subject: Hymenoptera
subject: Novel ecosystems
subject: Soil-nesting insects
subject: Urban nature
subject: 500 Naturwissenschaften und Mathematik::570 Biowissenschaften; Biologie::570 Biowissenschaften; Biologie

description: Municipal authorities around the world have come to recognize the importance of making conservation and restoration a priority. Multiple urban restoration programs now foster insects and other pollinators through planting and sowing flowering plants, many of them within residential areas. But residents are not only walking next to pollinators visiting flowering sidewalk grass verges, they are also walking on top of them, nesting in the cracks and interstices of urban pavements. Combining morphological and molecular monitoring schemes, we conducted a survey of urban pavements at twelve locations across Berlin and found that pavements can foster a surprising number and quantity of soil dwelling insects—in particular wild bees and wasps. Pavements located within 200 m to an insect-friendly flower garden were covered with significantly more nests of wild bees and solitary wasps, and showed higher species richness of these groups, while the degree of sealed surfaces in the surrounding had no effect per se. This underlines the positive impact that insect-friendly gardens can have for pollinators and other insects, even in highly sealed areas. Also, it shows the potential of cobbled pavements as valuable nesting sites in highly sealed urban areas. We provide a list of 55 species of ground-nesting Hymenoptera found in Berlin pavements, including 28 species of wild bees and 22 apoid wasps. In our study, the molecular approach only detected three Hymenoptera species and did not yield comparable results to classical monitoring. Nonetheless, using eDNA methods might be a promising tool for further studying soil nesting insects in the future, and to gain insights into the web of life in urban pavements.
Pheidole bajaensis Wilson, 2003, new species
Creators: name: Wilson, E. O.
Publisher: name: Harvard University Press
Year: 2003
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Formicidae
Pheidole
Pheidole bajaensis

description: Pheidole bajaensis new species
types Mus. Comp. Zool. Harvard.
etymology L bajaensis, named after the Mexican state of origin.
Diagnosis Close to and possibly conspecific with yaqui, differing as follows.
Major: occiput rugulose from the midline partly out to the occipital corners; postpetiole laterally subangulate seen from above; margins of anterior half of pronotum not transversely carinulate.
Minor: humerus in dorsal-oblique view less angulate and occipital lobes in full-face view more so, and propodeal spines longer. Together, bajaensis and yaqui differ from gilvescens and xerophila in the major's head shape, which in side view is rounded (not flattened) in the dorsal profile of its posterior half, and the failure of the head to taper toward the occiput; other traits exist in major and minor as shown. Philip Ward (personal communication) has pointed out thai yaqui and bajaensis are joined by intermediates in the degree of occipital regulation, forming what appears to be a southward cline on Baja. He recommends treating the two forms as one species. Ward may be right, but I have hesitated to unite the two forms in view of the presence of other defining traits described here in the Diagnosis.
Measurements (mm) Holotype major: HW 1.22, HL 1.26, SL 0.64, EL 0.24, PW 0.52. Paratype minor: HW 0.54, HL 0.60, SL 0.52, EL 0.20, PW 0.32.
color Major: body and appendages medium yellow except mandibles, which are dark yellow. Minor: body and appendages medium yellow.
Range Known only from Baja California Sur; possibly a geographic variant of yaqui, as noted in the Diagnosis above.
Biology Unknown.
Figure Upper: holotype, major. Lower: paratype, minor. BAJA CALIFORNIA SUR, MEXICO: 50 km south-southwest of San Ignacio, 26Â°52'N 113Â°08W (Philip S. Ward). Scale bars = 1 mm.
description: Published as part of Wilson, E. O., 2003, Pheidole in the New World. A dominant, hyperdiverse ant genus., Cambridge, MA :Harvard University Press on page 559
Characterization of human blood coagulation Factor XII cDNA. Prediction of the primary structure of Factor XII and the tertiary structure of beta-Factor XIIa
Creators: name: The University of North Carolina at Chapel Hill University Libraries
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1985

description: A human liver cDNA library was screened by colony hybridization with two mixtures of synthetic oligodeoxyribonucleotides as probes. These oligonucleotides encoded regions of beta-factor XIIa as predicted from the amino acid sequence. Four positive clones were isolated that contained DNA coding for most of factor XII mRNA. DNA sequence analysis of these overlapping clones showed that they contained DNA coding for part of an amino-terminal extension, the complete amino acid sequence of plasma factor XII, a TGA stop codon, a 3' untranslated region of 150 nucleotides, and a poly(A)+ tail. The cDNA sequence predicts that plasma factor XII consists of 596 amino acid residues. Within the predicted amino acid sequence of factor XII, we have identified three peptide bonds that are cleaved by kallikrein during the formation of beta-factor XIIa. Comparison of the structure of factor XII with other proteins revealed extensive sequence identity with regions of tissue-type plasminogen activator (the epidermal growth factor-like region and the kringle region) and fibronectin (type I and type II homologies). As the type II region of fibronectin contains a collagen-binding site, the homologous region in factor XII may be responsible for the binding of factor XII to collagen. The carboxyl-terminal region of factor XII shares considerable amino acid sequence homology with other serine proteases including trypsin and many clotting factors. A preliminary structural model of beta-factor XIIa is proposed based on the known high resolution x-ray diffraction structures of trypsin, chymotrypsin, and elastase.
A Closed-Form Approximation of the Gaussian Noise Model in the Presence of Inter-Channel Stimulated Raman Scattering
Creators: name: Semrau, Daniel
name: Killey, Robert I.
name: Bayvel, Polina
Publisher: name: arXiv
Year: 2018
Subjects: subject: Signal Processing (eess.SP)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: An accurate, closed-form expression evaluating the nonlinear interference (NLI) power in coherent optical transmission systems in the presence of inter-channel stimulated Raman scattering (ISRS) is derived. The analytical result enables a rapid estimate of the signal-to-noise ratio (SNR) and avoids the need for integral evaluations and split-step simulations. The formula also provides new insight into the underlying parameter dependence of ISRS on the NLI. The proposed result is applicable for dispersion unmanaged, ultra-wideband transmission systems that use optical bandwidths of up to 15 THz. The accuracy of the closed-form expression is compared to numerical integration of the ISRS Gaussian Noise model and split-step simulations in a point-to-point transmission, as well as in a mesh optical network scenario.
description: Version 2: The plots of figure 4 and 5 were placed out of order in version 1. In version 2, they have been swapped and are now in correct order
MOESM2 of Cost effectiveness of HIV and sexual reproductive health interventions targeting sex workers: a systematic review
Creators: name: Rinaldi, Giulia
name: Aliasghar Kiadaliri
name: Haghparast-Bidgoli, Hassan
Publisher: name: figshare
Year: 2018
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Additional file 2. Inclusion and exclusion criteria.
Excitonic Phase Transition in Electronic Systems
Creators: name: Continentino, M. A.
name: Japiassu, G. M.
name: Troper, A.
Publisher: name: arXiv
Year: 1995
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: Although predicted theoretically excitonic phase transitions have never been observed. Recently it has been claimed that they can occur in some strongly correlated materials. We study the possibility of an excitonic transition in a two-band model and show that a true phase transition never occurs in the presence of hybridization. We suggest an alternative interpretation for these experiments based on the opening or closing of a hybridization gap at a critical pressure.
description: 14 pages, Latex, no figures, accepted for publication in J.Phys.:Condensed Matter
Additional file 3: of Development and evaluation of CARIES-QC: a caries-specific measure of quality of life for children
Creators: name: Gilchrist, Fiona
name: Rodd, Helen
name: Deery, Chris
name: Marshman, Zoe
Publisher: name: figshare
Year: 2018
Subjects: subject: Medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Developmental Biology
subject: Science Policy
subject: Hematology
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Correlations (Spearmanâ s rho) between CARIES-QC total scores and clinical data and CPQ11â 14-ISF:16 total scores and clinical data. (DOCX 62 kb)