Results 11 to 20 of about 984,445 (260)

A graphical exploration of the relationship between parasite aggregation indices. [PDF]

open access: yesPLoS ONE
The level of aggregation in parasite populations is frequently incorporated into ecological studies. It is measured in various ways including variance-to-mean ratio, mean crowding, the k parameter of the negative binomial distribution and indices based ...
R McVinish, R J G Lester
doaj   +2 more sources

Concurrent inflammatory, hemorheological and macrovascular responses to a 230-km ultramarathon: an exploratory study [PDF]

open access: yesScientific Reports
To investigate the concurrent physiological response to extreme endurance exercise by examining inflammatory, hemorheological, endothelial, and vascular adaptations following an ultramarathon. Twelve runners (9 men/3 women; 48 ± 7 years) participating in
Marijke Grau   +6 more
doaj   +2 more sources

Primerjava izbranih krajinsko-ekoloških kazalcev za gozdove v dveh različnih krajinskih tipih

open access: yesActa Silvae et Ligni, 2015
By analysing changes in landscape structure we can trace the influence they have on the evaluation of the diversity function of a forest. In the presented research, it was assessed which indices for computing areas, cores and aggregation tendencies that ...
Janez Pirnat
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

Local aggregation in a dynamic setting [PDF]

open access: yes, 1990
Although it is not possible, in general, to give a macro description of a micro model over the entire state space of the micro model, it is possible to aggregate exactly over a subspace.
Schlicht, Ekkehart, Ekkehart Schlicht
core   +4 more sources

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

Comparison of measures of crowding, group size, and diversity

open access: yesEcosphere, 2017
In ecology, diversity is often measured as the mean rarity of species in a community. In behavioral sciences and parasitology, mean crowding is the size of the group to which a typical individual belongs.
Zsolt Lang   +2 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

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

Home - About - Disclaimer - Privacy