Results 41 to 50 of about 398,011 (299)

THE PROTOSTELLAR LUMINOSITY FUNCTION [PDF]

The Astrophysical Journal, 2011
The protostellar luminosity function (PLF) is the present-day luminosity function of the protostars in a region of star formation. It is determined using the protostellar mass function (PMF) in combination with a stellar evolutionary model that provides the luminosity as a function of instantaneous and final stellar mass. As in McKee & Offner (2010)
Offner, Stella S. R., McKee, Christopher F.   +1 more
openaire   +2 more sources

Efeito da luz e da quebra de dormência na germinação de sementes de espécies de plantas daninhas Effect of light and dormancy break on weed species seed germination

Planta Daninha, 2007
Objetivou-se com este trabalho verificar a quebra de dormência, utilizando ácido sulfúrico (H2SO4) e escarificação mecânica, e o efeito da luz na germinação das espécies Euphorbia heterophylla, Ipomoea nil, Sida glaziovii e Brachiaria plantaginea.
F.L. Salvador, R. Victoria Filho, A.S.R. Alves, F. Simoni, H.A.M. San Martin   +4 more
doaj   +1 more source

Ecological anatomy of Eugenia punicifolia (Kunth) DC. (MYRTACEAE) in the restinga region,state of Ceará [PDF]

Revista Brasileira de Fruticultura, 2019
The species Eugenia punicifolia (Kunth) DC. (myrtle) occurs in the coastal region of the state of Ceará and has ecological and medicinal importance. This study aimed to characterize the leaf anatomy of myrtle (E. punicifolia) in the rainy and dry seasons,
Viviane de Oliveira Thomaz Lemos, Eliseu Marlônio Pereira de Lucena, Oriel Herrera Bonilla, Bruno Edson-Chaves   +3 more
doaj   +1 more source

The Empirical Mass-Luminosity Relation for Low Mass Stars

, 2007
This work is devoted to improving empirical mass-luminosity relations and mass-metallicity-luminosity relation for low mass stars. For these stars, observational data in the mass-luminosity plane or the mass-metallicity-luminosity space subject to non ...
A. Alonso, A. Gould, A.S. Grossman, B. Cester, D. Pourbaix, D. Pourbaix, D. Pourbaix, E. Hertzsprung, F. D’Antona, Fang Xia, G. Laughlin, H. Copeland, H.N. Russell, I.N. Reid, J. Woitas, J. Woitas, J.M. Scalo, L.B. Lucy, O. Demircan, P.R. Bevington, S. Söderhjelm, Shulin Ren, T.J. Henry, T.J. Henry, V.M. Woolf, W.H. Press, X. Bonfils, X. Delfosse, Yanning Fu   +28 more
core   +2 more sources

The luminosity of the unseen: luminosity function in dark sirens

Monthly Notices of the Royal Astronomical Society
ABSTRACT Gravitational waves (GWs) offer a novel avenue for probing the Universe. An especially compelling application is an independent determination of the Hubble constant, $H_0$, using dark standard sirens, which associate GW signals with galaxy catalogues under the assumption that GW events are hosted by galaxies in the catalogue.
Cezary Turski, Maria Lisa Brozzetti, Gergely Dálya, Michele Punturo, Archisman Ghosh   +4 more
openaire   +2 more sources

COMP–PMEPA1 axis promotes epithelial‐to‐mesenchymal transition in breast cancer cells

Molecular Oncology, EarlyView.
This study reveals that cartilage oligomeric matrix protein (COMP) promotes epithelial‐to‐mesenchymal transition (EMT) in breast cancer. We identify PMEPA1 (protein TMEPAI) as a novel COMP‐binding partner that mediates EMT via binding to the TSP domains of COMP, establishing the COMP–PMEPA1 axis as a key EMT driver in breast cancer.
Konstantinos S. Papadakos, Gilar Gorji‐bahri, Lejla Gradjan, Julia Zajac, Kacper Gil, Yvonne Thokozile Nduku, Anna M. Blom   +6 more
wiley   +1 more source

Luminosity function of faint Galactic sources in the Chandra bulge field

, 2011
We study the statistical properties of faint X-ray sources detected in the Chandra Bulge Field. The unprecedented sensitivity of the Chandra observations allows us to probe the population of faint Galactic X-ray sources down to luminosities L(2-10 keV ...
Cappelluti, Churazov, David, E. Churazov, Forman, Forman, Gilfanov, Güdel, Heinke, Hong, Hünsch, Irwin, Loewenstein, M. Revnivtsev, Maíz-Apellániz, Mewe, Moretti, Padovani, Pallavicini, Predehl, Pretorius, R. Sunyaev, Revnivtsev, Revnivtsev, Revnivtsev, Revnivtsev, Revnivtsev, Revnivtsev, Revnivtsev, Robin, S. Sazonov, Sarazin, Sazonov, Schwope, Strickland, Vikhlinin, W. Forman, Worrall   +37 more
core   +1 more source

The mid-IR Luminosity Function at z<0.3 from 5MUSES: Understanding the Star-formation/AGN Balance from a Spectroscopic View [PDF]

, 2011
We present rest-frame 15 and 24 um luminosity functions and the corresponding star-forming luminosity functions at ...
Armus, Arnouts, Bothwell, Caputi, Casey Papovich, Chary, Daniel A. Dale, Dey, Elbaz, Fu, George Helou, Hopkins, Hopkins, Houck, Houck, Huang, Kalliopi Dasyra, Le Floc'h, Lee Armus, Lilly, Madau, Menéndez-Delmestre, Murphy, Nurur Rahman, Papovich, Petric, Pope, Pozzi, Pérez-González, Reddy, Rieke, Rujopakarn, Sabrina Stierwalt, Sajina, Sanders, Saunders, Shupe, Veilleux, Werner, Wu, Xu, Yan, Yanling Wu, Yong Shi, Yuan   +44 more
core   +3 more sources

Somatic mutational landscape in von Hippel–Lindau familial hemangioblastoma

Molecular Oncology, EarlyView.
The causes of central nervous system (CNS) hemangioblastoma in Von Hippel–Lindau (vHL) disease are unclear. We used Whole Exome Sequencing (WES) on familial hemangioblastoma to investigate events that underlie tumor development. Our findings suggest that VHL loss creates a permissive environment for tumor formation, while additional alterations ...
Maja Dembic, Anne Nørremølle, Lilian Bomme Ousager, Lars van Brakel Andersen, Marie Louise Mølgaard Binderup, Mads Thomassen   +5 more
wiley   +1 more source

Adaptation of Cedro-Vermelha, Tarumã-Azeitona, Ingá-Doce, Branquilho-Bravo and Ocotea-Guaicá Seedlings to Shading Levels

Floresta e Ambiente, 2020
As native tree species are often used for densification, enrichment and degraded areas recovery, a better understanding of the behavior of their seedlings in response to light exposure is needed. This study evaluates the growth and morphological behavior
Alexandre Techy de Almeida Garrett, Fabiana Schmidt Bandeira Peres, Mario Takao Inoue, Flávio Augusto de Oliveira Garcia   +3 more
doaj   +1 more source