Results 61 to 70 of about 30,769 (253)

Las finanzas públicas de Ecuador en el siglo XX [PDF]

, 2016
El Estado es un actor complejo que se moviliza según relaciones de poder y cuyos roles esenciales –en el plano económico- son la promoción económica y la generación del bienestar de una nación.
Castillo Luna, Toa Atenea
core  

Distribution and ecology of the four Macrourus species by‐caught in the longline fishery at South Georgia, Southern Ocean

Journal of Fish Biology, EarlyView.
Abstract Although Macrourus species are the main by‐catch across Southern Ocean longline fisheries, including around South Georgia, the lack of species‐specific data has hindered effective management and ecological understanding. Aggregation of macrourids at genus level masks critical interspecific differences in life‐history strategies and ...
José Abreu, Philip R. Hollyman, Jennifer J. Freer, M. L. Romero Martínez, José P. Queirós, Timothy Jones, Richard A. Phillips, José C. Xavier, Martin A. Collins   +8 more
wiley   +1 more source

Cryptic diversity and recent diversification in the Pyrrhulina australis species complex (Characiformes, Lebiasinidae) revealed by mitochondrial DNA

Journal of Fish Biology, EarlyView.
Abstract Pyrrhulina australis Eigenmann & Kennedy, 1903, is widely distributed across the main hydrographic basins of South America. The taxonomic integrity of this species is nevertheless challenged by the lack of clear diagnostic characters, its marked geographic variation and the morphological overlap with its congeners. In this context, the present
Taina Barbosa De Souza, Daniela Cristina Ferreira, Hugmar Pains Da Silva, Carolina B. Machado, Claudio Oliveira, André L. Netto‐Ferreira, Paulo C. Venere   +6 more
wiley   +1 more source

Optimization of a Time-of-Arrival-Ridge Estimation Iterative Model for Ultra-Wideband Positioning in a Long Linear Area

Sensors
Ultra-wideband (UWB) technology is widely used for high-precision indoor positioning due to its adaptability to various environments. However, in long linear areas, such as tunnels or corridors, the near-linear deployment of base stations caused by ...
Mengqian Li, Mingduo Li, Jinhua Wang, Aoze Duan, Haotian Sun, Qinggang Meng   +5 more
doaj   +1 more source

Mortalidad y estancia hospitalaria relacionada con trauma ocupacional atendido durante el fin de semana en el servicio de emergencias.

Revista Cuarzo, 2018
Objetivo. Los desenlaces del trauma ocupacional agudo (TOA) puede estar condicionado al desarrollo industrial y al momento de la semana de ocurrencia; se comparó la mortalidad y estancia hospitalaria (EH) de trabajadores que presentaron TOA en ...
Aníbal A Teherán, Luis E. Alfonso, Albert Ávila, Juan Carlos Hernández, Claudia P. Pacheco, Edwin G. Chapeta, Fernando J. Pimienta-Neira, Víctor M. Martínez   +7 more
doaj   +1 more source

Comparison of different X‐ray‐based scanning electron microscopy methods to detect sub‐nanometre ultra‐thin InAs layers deposited on top of GaAs

Journal of Microscopy, EarlyView.
Abstract We compare three different methods of X‐ray analysis in a scanning electron microscope (SEM): energy‐dispersive X‐ray spectroscopy (EDX), wavelength‐dispersive X‐ray spectroscopy (WDX) and micro X‐ray fluorescence (μXRF). These methods are all applied to the same gallium arsenide (GaAs) wafer with a 0.8 nm layer of indium arsenide (InAs) on ...
Thomas Walther, Stuart Creasey‐Gray, Stephan Boehm, Heath Young, Yang Yang   +4 more
wiley   +1 more source

Determining bismuth content in GaAsBi alloys by energy‐dispersive X‐ray spectroscopy: A case study with multiple sets of k*‐factors for analytical transmission electron microscopy

Journal of Microscopy, EarlyView.
Abstract Measuring the bismuth (Bi) content of ternary gallium arsenide bismuthide (GaAsBi) alloys is important because it sensitively influences their bandgap, and Bi is known to segregate vertically to the surface and sometimes also laterally during growth, so elemental distribution maps need to be quantified.
T. Walther
wiley   +1 more source

Dai Toa senkyoku chizu.

, 1942
Map of Asia-Pacific during World War II showing Japanese influence and operation, international boundaries and populated places. Realistic Japanese aircraft and paratroopers are depicted over the map.

core   +1 more source

Increase of the coordinate measurement accuracy in the multi-static radar in case of the receiving position placement on the aerial vehicle

Доклады Белорусского государственного университета информатики и радиоэлектроники, 2019
The dependence of the accuracy of the object's coordinates estimation on the relative position of transmitting and receiving points of the multi-position radar system was studied.
V. V. Legkostup, V. E. Markevich
doaj  

Mutation Trajectory of Omicron SARS-CoV-2 Virus, Measured by Principal Component Analysis

COVID
Since 2019, the SARS-CoV-2 virus has caused a global pandemic, resulting in widespread infections and ongoing mutations. Analyzing these mutations is essential for predicting future impacts.
Tomokazu Konishi, Toa Takahashi
doaj   +1 more source