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UMNH:Mamm:3875

Author: UMNH VZ staff
Publication venue
Publication date: 30/11/2022
Field of study

UMNH:Mamm:3875 Voucher specimen study ski

The University of Utah: J. Willard Marriott Digital Library

Santa Fe (ATSF) 901, 3875, & 1703

Author: George Preston
Publication venue
Publication date: 18/05/1946
Field of study

A photograph postcard showing Santa Fe (ATSF) 1703, helping at rear of freight train going up north side of Raton Pass, just below Wootten, CO, with a 60-car freight, going 10 mph; locomotives 901 and 3875, also 2-10-2's, on head end are almost to the top of the pass. New Mexico Division [see also 2008.008.0167

Gateway to Oklahoma History

Author Instructions

Author: Instructions Author
Publication venue
Publication date: 04/11/2013
Field of study

Crossref

Cartographic Perspectives (E-Journal - North American Cartographic Information Society, NACIS)

Going Beyond Counting First Authors in Author Co-citation Analysis

Author: Zhao Dangzhi
Publication venue
Publication date: 01/01/2005
Field of study

The present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed

E-LIS

Properties of the $T_{cc}(3875)^+$ and $T_{\bar c\bar c}(3875)^-$ (and their heavy-quark spin partners) in nuclear matter

Author: Montesinos Victor
Nieves Juan
Tolos Laura
Albaladejo Miguel
Publication venue
Publication date: 06/09/2023
Field of study

We discuss the modification of the properties of the tetraquark-like

T_{cc}(3875)^+

and

T_{\bar c\bar c}(3875)^-

states in dense nuclear matter. We consider the

T_{cc}^+

and

T_{\bar c\bar c}^-

in vacuum as purely isoscalar

D^{\ast} D

and

\overline{D}{}^{\ast} \overline{D}

S

-wave bound states, respectively, dynamically generated from a heavy-quark effective interaction between the charmed mesons. We compute the

D

\overline{D}

D^*

, and

\overline{D}{}^{*}

spectral functions embedded in a nuclear medium and use them to determine the corresponding

T_{cc}^+

and

T_{\bar c\bar c}^-

self energies and spectral functions. We find important modifications of the

D^{\ast} D

and

\overline{D}{}^{\ast} \overline{D}

scattering amplitudes and of the pole position of these exotic states already for

\rho_0/2

, with

\rho_0

the normal nuclear density. We also discuss the dependence of these results on the

D^{\ast} D

(

\overline{D}{}^{\ast} \overline{D}

) molecular component in the

T_{cc}^+

(

T_{\bar c\bar c}^-

) wave-function. Owing to the different nature of the

D^{(*)}N

and

\overline{D}{}^{(*)}N

interactions, we find characteristic changes of the in-medium properties of the

T_{cc}(3875)^+

and

T_{\bar c\bar c}(3875)^-

, which become increasingly visible as the density increases. The experimental confirmation of the found distinctive density-pattern will give support to the molecular picture of these tetraquark-like states, since in the case they were colourless compact quark structures the density behaviour of their respective nuclear medium spectral functions would likely be similar. Finally, we perform similar analyses for the isoscalar

J^P=1^+

heavy-quark spin symmetry partners of the

T_{cc}^+

(

T_{cc}^{*+}

) and the

T_{\bar c\bar c}^-

(

T_{\bar c\bar c}^{*-}

) by considering the

D^{*0}D^{*+}

and

\overline{D}{}^{*0} D^{*-}

scattering

T-

matrices.Comment: 17 pages, 9 figure

arXiv.org e-Print Archive

Variations on the Author

Author: Sayad Cecilia
Publication venue
Publication date: 01/01/2016
Field of study

“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship

Crossref

Kent Academic Repository

Dalbergia cf. frutescens (Vell.) Britton from Colombia collected by E. Álvarez, A. Camargo, F. Toro #3875

Author: Álvarez E.
Camargo A.,
Toro F.,
Publication venue
Publication date: 27/04/2019
Field of study

File Name: TOLI-25768-ZAR-05-Sot-Reb-EAD-3875.jpg CÓDIGO FOTO: TOLI-25768-ZAR-05-Sot-Reb-EAD-3875- Fotografía: SI Nº TOLI: TOLI-25768 PARCELA: ZAR-05 CÓDIGO: Sot-Reb-EAD-3875 Nº COLECTA: 3875 NUEVOS COLECTORES: Alejandro Camargo, Felipe Toro & Esteban Alvarez COLECTORES: E. Álvarez, A. Camargo, F. Toro Nº MUESTRAS MONTADAS: 1 Homologación: Homologado Nueva fecha del evento : 30/11/2018. Fecha del evento: 27/04/2019. Proyecto : Recursos Botánicos Disponibles en Línea (BRAVO) para la flora Colombiana Continente: SA Pais: Colombia Estado/Provincia: Amazonas Municipio: Leticia Localidad: Resguardo Indígena Ticuna-Huitoto Km 6-11. Elevación minima en metros: 200 Elevación maxima en metros: 300 Latitud: -4.004 Longitud original: -69.896 datum geodésico: WGS 84 Latitud decimal: -4.004 Longitud decimal: -69.896 Identificado por: William Ariza Fecha de identificación: 23/01/2019. Familia antigua: Fabaceae Especie antigua: Dalbergia monetaria L. f. Nombre cientifico: Dalbergia cf. frutescens (Vell.) Britton Reino: Plantae Filo: Magnoliophyta Clase: Equisetopsida Orden: Fabales Familia nueva: Fabaceae Género nuevo: Dalbergia especie nueva: frutescens Autoría del nombre científico: (Vell.) Britton : Fabaceae genero herbario: Dalbergia especie herbario: frutescens Especie de herbario para TNRS: Dalbergia frutescens Especie corregida herbario y desde TNRS: Dalbergia frutescens Familia corregida desde TNRS: Fabaceae : 477

ZENODO

The isospin and compositeness of the $T_{cc}(3875)$ T cc ( 3875 ) state

Author: A. Feijoo
L. R. Dai
L. M. Abreu
E. Oset
Publication venue
Publication date: 31/10/2023
Field of study

Abstract We perform a fit to the LHCb data on the

T_{cc}(3875)

T cc ( 3875 ) state in order to determine its nature. We use a general framework that allows to have the

D^0 D^{*+},

D 0 D ∗ + ,

D^+ D^{*0}

D + D ∗ 0 components forming a molecular state, as well as a possible nonmolecular state or contributions from missing coupled channels. From the fits to the data we conclude that the state observed is clearly of molecular nature from the

D^0 D^{*+},

D 0 D ∗ + ,

D^+ D^{*0}

D + D ∗ 0 components and the possible contribution of a nonmolecular state or missing channels is smaller than 3%, compatible with zero. We also determine that the state has isospin

I=0

I = 0 with a minor isospin breaking from the different masses of the channels involved, and the probabilities of the

D^0 D^{*+},

D 0 D ∗ + ,

D^+ D^{*0}

D + D ∗ 0 channels are of the order of 69% and 29% with uncertainties of 1%. The differences between these probabilities should not be interpreted as a measure of the isospin violation. Due to the short range of the strong interaction where the isospin is manifested, the isospin nature is provided by the couplings of the state found to the

D^0 D^{*+},

D 0 D ∗ + ,

D^+ D^{*0}

D + D ∗ 0 components, and our results for these couplings indicate that we have an

I=0

I = 0 state with a very small isospin breaking. We also find that the potential obtained provides a repulsive interaction in

I=1,

I = 1 , preventing the formation of an

I=1

I = 1 state, in agreement with what is observed in the experiment

EDP Sciences OAI-PMH repository (1.2.0)

Directory of Open Access Journals

Appropriate Similarity Measures for Author Cocitation Analysis

Author: Waltman L.R.
Eck N.J.P. van
Publication venue
Publication date
Field of study

We provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authorsâ€™ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis

Research Papers in Economics

Dalbergia cf. frutescens (Vell.) Britton from Colombia collected by E. Álvarez, A. Camargo, F. Toro #3875

Author: Camargo A., (8341683)
Toro F., (8341689)
Álvarez E. (8348337)
Publication venue
Publication date: 2019
Field of study

The Francis Crick Institute