Search results for "Statistic"
showing 10 items of 12520 documents
Are the Growth Standards of the World Health Organization Valid for Spanish Children? The SONEV Study
2021
Background: The use of different growth tables to assess the population's nutritional status has given rise to a series of limitations arising from the lack of consensus and uniform methodological criteria. This leads to a disparity of results that prevent an accurate and reliable diagnosis of whether a child is overweight or obese.Objective: The purpose of this study was to develop growth references for weight, height, and body mass index for Eastern-Spanish children from 6 to 16 years of age.Methods: The final sample used to fit the growth curves was made up of 1,102 observations. The 2007 WHO curves are currently used for Child Health Service Cards. Therefore, to make the comparison of t…
Over-dispersion in Oral Health: The state of art of statistical methodology
2011
Statistical Approximation of Fourier Transform-IR Spectroscopy Data for Zinc White Pigment from Twentieth-Century Russian Paintings
2017
We present a statistical model for approximation of experimental Fourier transform-IR spectroscopy (FTIR) data for paint samples from paintings of different ages. The model utilizes random variations in some parameters (initial ageing rate, degree of change in ageing rate and time at which the change occurs). We determine the parameters characterizing variation in the paint composition and the storage conditions for the paintings. The numerical calculation is qualitatively consistent with the experimental data. In the proposed model, changes in the initial composition of the paint and the storage conditions make about the same contribution to the experimentally observed scatter in the data …
L'économie matérielle de la France (1830-2015). L'histoire d'un parasite ?
2018
This article explores the long-term dynamics of material use in France over a period of 185 years. It is based on material flow accounts that are perfectly consistent with the standards of Material Flows Analysis at the national economic scale. This work - which covers domestic extraction, imports and exports - is the first long-term study of material flows for France, with annual and national data for most of the period. Our database allows us to study the evolution of French metabolism during the industrialization of the country, together with the increasing dependence on abiotic materials. We highlight a singular metabolic trajectory: that of a state that benefits from successive world-s…
Obesity and survival in operable breast cancer patients treated with adjuvant anthracyclines and taxanes according to pathological subtypes: a pooled…
2013
Obesity is an unfavorable prognostic factor in breast cancer (BC) patients regardless of menopausal status and treatment received. However, the association between obesity and survival outcome by pathological subtype requires further clarification. METHODS: We performed a retrospective analysis including 5,683 operable BC patients enrolled in four randomized clinical trials (GEICAM/9906, GEICAM/9805, GEICAM/2003-02, and BCIRG 001) evaluating anthracyclines and taxanes as adjuvant treatments. Our primary aim was to assess the prognostic effect of body mass index (BMI) on disease recurrence, breast cancer mortality (BCM), and overall mortality (OM). A secondary aim was to detect differences o…
Проблемы научного управления социалистическим обществом. Выпуск 4
1977
Информация является центральной категорией управления. Научное управление на современном этапе невозможно без создания автоматизированных систем управления - АСУ, которые могут эффективно функционировать только при наличии четких информационно-поисковых языков или четкой классификации информации.
ЭВМ в образовании. Педагогические программные средства
1989
Cборник содержит 18 статей, отражавших результаты исследований по общим и прикладным вопросам применения компьютера в образовании. Рассматривается научные, методические и практические аспекты разработки программно- методического обеспечения для обучения информатике, педагогических программных средств (ППС) для предметов естественно-научного цикла, а также базового и инструментального программного обеспечения.
ЭВМ в образовании. Программное обеспечение
1988
Сборник посвящен научным и методическим проблемам адаптации, разработки и стандартизации педагогических программных средств (ППС) для применения при изучении информатики и вычислительной техники, предметов естественно-научного цыкла, а также разработке некоторых инструментальных средств создания ППС.
Информатика: ЭВМ в образовании
1991
Cборник содержит 16 статей, отражавших результаты исследований по общим и прикладным вопросам применения компьютера в образовании. Рассматривается научные, методические и практические аспекты разработки содержания образовани в условиях компьютеризации, программно-методического обеспечения для обучения информатике.
Dynamics of a harmonic oscillator coupled with a Glauber amplifier
2020
A system of a quantum harmonic oscillator bi-linearly coupled with a Glauber amplifier is analysed considering a time-dependent Hamiltonian model. The Hilbert space of this system may be exactly subdivided into invariant finite dimensional subspaces. Resorting to the Jordan-Schwinger map, the dynamical problem within each invariant subspace may be traced back to an effective SU(2) Hamiltonian model expressed in terms of spin variables only. This circumstance allows to analytically solve the dynamical problem and thus to study the exact dynamics of the oscillator-amplifier system under specific time-dependent scenarios. Peculiar physical effects are brought to light by comparing the dynamics…