Results 91 to 100 of about 391,924 (273)
A simple index for assessing cumulative human impacts on mountain lakes
Limnology and Oceanography: Methods, EarlyView.Abstract Mountain lakes are highly sensitive ecosystems and effective sentinels of environmental change, yet the exposure and magnitude of the human footprint remain poorly quantified. In this study, we develop a simple and non‐invasive abiotic index to assess cumulative pressures on mountain lakes. The proposed index integrates eight variables grouped
Clara Sáez +3 more
wiley +1 more source
Tourism as a driver of economic and social development in underdeveloped regions
Regional Science Policy &Practice, EarlyView., 2023 Abstract Cross‐border cooperations have been usually approached by developing trade agreements between international regions to upgrade their socioeconomic conditions and promote international tourism flows in territories. However, little attention has been paid to the role that tourist companies play in underprivileged territories highly dependent on ...
Rafael Robina‐Ramírez +3 more
wiley +1 more source
Frontiers of Bright CEP‐Stable Broadband Infrared Sources
Laser &Photonics Reviews, EarlyView.Bright CEP‐stable broadband infrared sources push the limits of ultrafast science by delivering exceptional brightness alongside few‐cycle durations and multi‐octave spectral coverage. This review highlights emerging architectures and nonlinear conversion strategies that scale power while preserving phase stability.
Ugaitz Elu, Jens Biegert
wiley +1 more source
Estudio bibliométrico de Economía Digital y sus tendencias
Revista de Estudios Empresariales. Segunda ÉpocaLa economía digital (ED) se relaciona con la adaptación y transformación de las actividades económicas, a las tecnologías de comunicación y de tratamiento de información.
Jorge Manuel Cueva Estrada +1 more
doaj +1 more source
Some experimental observations of crack-tip mechanics with displacement data [PDF]
, 2015 Estudio de la mecánica en el vértice de la grieta mediante datos de desplazamiento.In the past two decades, crack-tip mechanics has been increasingly studied with full-field techniques.
Lopez-Crespo, Pablo +3 more
core +4 more sources
Movement Disorders, EarlyView.Abstract Background Parkinson's disease is mainly characterized by dopaminergic neurodegeneration in the substantia nigra pars compacta (SNc) and α‐synuclein accumulation. The locus coeruleus (LC) is also affected in Parkinson's disease and linked to some nonmotor symptoms, but the extent and timing of its degeneration remain unclear.
Megan Carrillo +6 more
wiley +1 more source
EL IMPUESTO MÍNIMO GLOBAL EN ECONOMÍAS EMERGENTES
Crónica TributariaEn este trabajo en la primera parte un análisis teórico/práctico del Impuesto Mínimo Global o Pilar II Plan de Acción BEPS (OCDE) y su estado actual de implementación en los diversos países.
Collosa, Alfredo
doaj +1 more source
Reusable Ionogel-based Photo-actuators in a Lab-on-a-disc [PDF]
, 2017 This paper describes the design, fabrication and performance of a reusable ionogel-based photo-actuator, in-situ photopolymerised into a lab-on-a-disc microfluidic device, for flow control.
Benito López, Fernando +6 more
core +2 more sources
High Relative Accuracy Computations With Covariance Matrices of Order Statistics
Mathematical Methods in the Applied Sciences, EarlyView.ABSTRACT In many statistical applications, numerical computations with covariance matrices need to be performed. The error made when performing such numerical computations increases with the condition number of the covariance matrix, which is related to the number of variables and the strength of the correlation between the variables. In a recent work,
Juan Baz +3 more
wiley +1 more source