Results 31 to 40 of about 1,608,848 (335)

Changes in county-scale landscape patterns in northern Fujian Province [PDF]

open access: yesE3S Web of Conferences, 2021
Based on the five-phase Landsat TM/ETM remote sensing image data, the remote sensing images were processed and the landscape pattern indices were calculated with the help of ENVI and FRAGSTATS software, respectively.
Fan Xuncheng
doaj   +1 more source

Convective Aggregation and Indices Examined from CERES Cloud Object Data

open access: yesJournal of Geophysical Research: Atmospheres, 2019
Convective aggregation is a self‐aggregation phenomenon appearing in idealized radiative‐convective equilibrium simulations under constant, uniform sea surface temperature (SST). To gain an understanding of observed convective aggregation or organization,
Kuan Xu, Yongxiang Hu, T. Wong
semanticscholar   +1 more source

A Multi-Criteria Reference Point Based Approach for Assessing Regional Innovation Performance in Spain

open access: yesMathematics, 2020
The evaluation of regional innovation performance through composite innovation indices can serve as a valuable tool for policy-making. While discussion on the best methodology to construct composite innovation indices continues, we are interested in ...
Ana Garcia-Bernabeu   +2 more
doaj   +1 more source

An algorithm for calculation of degree distribution and detection of network type: with application in food webs [PDF]

open access: yesNetwork Biology, 2011
In present study a Java algorithm to calculate degree distribution and detect network type was presented. Some indices, e.g., aggregation index, coefficient of variation, skewness, etc., were first suggested for detecting network type.
WenJun Zhang, ChenYuan Zhan
doaj  

Relationship of the Aggregation of Cardiovascular Risk Factors in the Parasympathetic Modulation of Young People with Type 1 Diabetes

open access: yesMedicina, 2019
Background and objectives: In healthy individuals, autonomic alterations are associated with the aggregation of cardiovascular risk factors. However, in individuals with type 1 diabetes, who are known to present autonomic alterations, mainly ...
Anne Kastelianne França da Silva   +5 more
doaj   +1 more source

WATER QUALITY INDICES IN MÉXICO AND COLOMBIA. EVOLUTION, CRITERIA AND CHALLENGES

open access: yesIngeniería Investigación y Desarrollo, 2022
The Water Quality Index (WQI) is a simple and easy-to-understand tool for analyzing and reporting quality trends. Water quality is not static and depends on multiple factors, in this sense; globally various indices have been developed based on local ...
Ana Patricia Gaytán-Alarcón   +4 more
doaj   +1 more source

Review article: A systematic review and future prospects of flood vulnerability indices

open access: yes, 2021
. This paper provides a state-of-art account on flood vulnerability indices, highlighting worldwide trends and future research directions. A total of 95 peer-reviewed articles published between 2002–2019 were systematically analyzed.
Luana Lavagnoli Moreira   +2 more
semanticscholar   +1 more source

Platelets in Fetal Growth Restriction: Role of Reactive Oxygen Species, Oxygen Metabolism, and Aggregation

open access: yesCells, 2022
Fetal growth restriction (FGR) is mainly caused by failure of the uteroplacental unit. The exact pathogenesis remains unclear. The cause is thought to be related to abnormal platelet activation, which may result in microthrombus formation in the small ...
Joanna Nowaczyk   +4 more
semanticscholar   +1 more source

Quality of life indices: how robust are the results considering different aggregation techniques?

open access: yesJournal of Maps, 2023
The quality of life has been an attractive topic for several decades, and it has received attention in the scientific, political and public spheres. However, in a growing number of studies aimed at assessing the quality of life, inconsistencies persist ...
Karel Macků, Radek Barvíř
doaj   +1 more source

Consistent Aggregation with Superlative and Other Price Indices [PDF]

open access: yesJournal of the Royal Statistical Society Series A: Statistics in Society, 2020
AbstractVarious fields of economic analysis (e.g. growth and productivity) and economic policy (e.g. monetary and social policy) rely on accurate measures of price change. Unfortunately, the price index formulae that most price statisticians consider as particularly accurate—the superlative indices of Fisher, Törnqvist, and Walsh—are believed to ...
von Auer, Ludwig, Wengenroth, Jochen
openaire   +4 more sources

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