Results 71 to 80 of about 28,514 (203)

The first chemical enrichment in the universe and the formation of hyper metal-poor stars

, 2005
The recent discovery of a hyper metal-poor (HMP) star, whose metallicity Fe/H is smaller than 1/100,000 of the solar ratio, together with one earlier HMP star, has raised a challenging question if these HMP stars are the actual first generation, low mass
Iwamoto, Nobuyuki, Maeda, Keiichi, Nomoto, Ken'ichi, Tominaga, Nozomu, Umeda, Hideyuki   +4 more
core   +1 more source

Influence of Hydraulic Conductivity Conceptualization and Unsaturated Flow Parameters for an Integrated Hydrological Model

Water Resources Research, Volume 61, Issue 11, November 2025.
Abstract In recent decades, integrated hydrologic models (IHMs) have advanced our understanding of hydrologic processes across catchment to continental scales. These models couple surface and variably saturated subsurface flow, incorporating land surface models to represent interactions within the critical zone. However, high computational costs hinder
Edinsson Muñoz‐Vega, Heye Reemt Bogena, Juan Carlos Richard‐Cerda, Reed M. Maxwell, Stephan Schulz   +4 more
wiley   +1 more source

The Type Ic Hypernova SN 2002ap [PDF]

, 2002
Photometric and spectroscopic data of the energetic Type Ic supernova (SN) 2002ap are presented, and the properties of the SN are investigated through models of its spectral evolution and its light curve.
Alexei V. Filippenko, Christopher L. Gerardy, Gang Zhao, George Kosugi, H. Umeda, Hideyo Kawakita, Hiroyuki Tomita, Hitoshi Yamaoka, J. Deng, Kazuhito Hatano, Kazuya Ayani, Keigo Enya, Keiichi Maeda, Ken'ichi Nomoto, Kentaro Motohara, Kenzo Kinugasa, Koichi Iwamoto, Koji S. Kawabata, Mamoru Doi, Masahide Takada-Hidai, Masanori Iye, Massimo Turatto, Nobunari Kashikawa, Paolo A. Mazzali, Paolo A. Mazzali, Robert A. Fesen, Ryan Chornock, Stefano Benetti, Stephen J. Smartt, T. Kawabata, Takeo Minezaki, Y. Ohyama, Yukiyasu Kobayashi, Yulei Qiu, Yuzuru Yoshii   +34 more
core   +2 more sources

Los medios de pago en el largo plazo. El caso de Buenos Aires, del dinero virreinal al dinero bancario*

El Trimestre Económico
El propósito del artículo consiste en evidenciar que todo medio de pago admitido como dinero conlleva tanto la materialización de un compromiso asumido por su emisor como beneficios potenciales resultantes de la provisión de instrumentos transaccionales ...
Martín Wasserman
doaj   +1 more source

The great exchange: Rapid demonetization in Trinidad and Tobago

Latin American Journal of Central Banking, 2020
Trinidad and Tobago executed a surprise demonetization of its largest currency note in December 2019 to address financial crimes. This evaluation of the outcome finds that the exercise was relatively well managed by the authorities within the short time ...
Alvin Hilaire, Reshma Mahabir
doaj   +1 more source

Hypernova Nucleosynthesis and Implications for Cosmic Chemical Evolution [PDF]

, 2001
We examine the characteristics of nucleosynthesis in 'hypernovae', i.e., supernovae with very large explosion energies ($\gsim 10^{52}$ ergs). Implications for the cosmic chemical evolution and the abundances in M82 are discussed.Comment: To appear in ...
Hashimoto, Masa-aki, Hix, W. Raphael, Iwamoto, Koichi, Nakamura, Takayoshi, Nomoto, Ken'ichi, Thielemann, Friedrich-Karl, Umeda, Hideyuki   +6 more
core   +3 more sources

Defects in Inorganic Mechanoluminescent Phosphors: Insights and Impacts

Advanced Functional Materials, Volume 35, Issue 40, October 1, 2025.
Mechanoluminescence is attracting more attention recently, and defect dominates mechanoluminescence performances. Investigating how defects work in the mechanoluminescence process is crucial for elucidating its complex luminescence mechanism. This review aims to emphasize the fundamental role of defects in mechanoluminescence, which offers an ...
Wenhao Li, Sheng Wu, Jing Ren, Puxian Xiong   +3 more
wiley   +1 more source

Re: Chiang et al.: International Classification of Retinopathy of Prematurity: Third Edition (Ophthalmology. 2021;128:e51–e68) [PDF]

Ophthalmology, 2022
Komal Agarwal, Sushma Jayanna, Tapas Ranjan Padhi, Sameera Nayak, Subhadra Jalali   +4 more
openaire   +5 more sources

La experiencia española de la banca emisora: la pluralidad de emisión en el siglo XIX*

El Trimestre Económico
En las décadas centrales del siglo XIX, España desarrolló un sistema bancario basado en la pluralidad de emisión. Diversos bancos fueron autorizados por el Estado para hacer circular sus billetes en sus respectivas provincias. Este proceso dio lugar a un
Yolanda Blasco-Martel, Carles Sudrià i Triay   +1 more
doaj   +1 more source

Cluster dynamics largely shapes protoplanetary disc sizes

, 2016
It is still on open question to what degree the cluster environment influences the sizes of protoplanetary discs surrounding young stars. Particularly so for the short-lived clusters typical for the solar neighbourhood in which the stellar density and ...
Pfalzner, Susanne, Vincke, Kirsten
core   +1 more source