Results 31 to 40 of about 2,231,192 (331)
Usage History of Scientific Literature: Nature Metrics and Metrics of Nature Publications [PDF]
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
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
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
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
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]
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
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 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
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
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