Results 31 to 40 of about 2,231,192 (331)

Usage History of Scientific Literature: Nature Metrics and Metrics of Nature Publications [PDF]

open access: yes, 2013
In this study, we analyze the dynamic usage history of Nature publications over time using Nature metrics data. We conduct analysis from two perspectives.
Mao, Wenli   +3 more
core   +3 more sources

Dragged Metrics

open access: yes, 2012
We show that the path of any accelerated body in an arbitrary space-time geometry $g_{\mu\nu}$ can be described as geodesics in a dragged metric $\hat{q}_{\mu\nu}$ that depends only on the background metric and on the motion of the body.
Bittencourt, E., Novello, M.
core   +1 more source

Complete Calabi-Yau metrics from Kahler metrics in D=4

open access: yes, 2010
In the present work the local form of certain Calabi-Yau metrics possessing a local Hamiltonian Killing vector is described in terms of a single non linear equation. The main assumptions are that the complex $(3,0)$-form is of the form $e^{ik}\widetilde{\
A. Besse   +12 more
core   +1 more source

Results-based aid with lasting effects: sustainability in the Salud Mesoamérica Initiative

open access: yesGlobalization and Health, 2018
Background The Salud Mesoamérica Initiative is a public-private partnership aimed at reducing maternal and child morbidity and mortality for the poorest populations in Central America and the southernmost state of Mexico.
Charbel El Bcheraoui   +6 more
doaj   +1 more source

Factors associated with delays in the search for care in under-5 deaths in Yucatán, Mexico

open access: yesSalud Pública de México, 2021
Objective. We examined delays during the search for care and associations with mother, child, or health services characteristics, and with symptoms reported prior to death. Materials and methods.
Bernardo Hernández-Prado   +12 more
doaj   +1 more source

Coarse metric and uniform metric [PDF]

open access: yesTopology and its Applications, 2019
This version contains the following minor corrections to the published version: (1). The word "increasing" is added in Definition 2(c). (2). In part (a) of Theorem 5, as well as parts (c) and (e) of Proposition 8, we need to assume that the coarse metric take values in a meet complete directed set.
openaire   +3 more sources

Examining geographical inequalities for malaria outcomes and spending on malaria in 40 malaria-endemic countries, 2010–2020

open access: yesMalaria Journal
Background While substantial gains have been made in the fight against malaria over the past 20 years, malaria morbidity and mortality are marked by inequality.
Angela E. Apeagyei   +5 more
doaj   +1 more source

METRICS [PDF]

open access: yes, 2007
Metrics are a sine qua non condition of an efficient management. Indeed, management cannot be based upon intuition: it has to be underpinned by figures.\ud \ud The choice of the indicators, their link to objectives and their strategic value, the weight ...
Benchimol, Guy
core  

The unpredictably eruptive dynamics of spruce budworm populations in eastern Canada

open access: yesPopulation Ecology, EarlyView.
We examine historical population data for spruce budworm from several locations through the period 1930–1997, and use density‐dependent recruitment curves to test whether the pattern of population growth over time is more consistent with Royama's (1984; Ecological Monographs 54:429–462) linear R(t) model of harmonic oscillation at Green River New ...
Barry J. Cooke, Jacques Régnière
wiley   +1 more source

The Similarity Metric

open access: yesIEEE Transactions on Information Theory, 2004
A new class of distances appropriate for measuring similarity relations between sequences, say one type of similarity per distance, is studied. We propose a new ``normalized information distance'', based on the noncomputable notion of Kolmogorov complexity, and show that it is in this class and it minorizes every computable distance in the class (that ...
Li, M.   +4 more
openaire   +8 more sources

Home - About - Disclaimer - Privacy