11,216 research outputs found

    News from the international study Control of Adolescent Smoking : Smoking in Scottish schools

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    This study was funded by EC BIOMED II grant BMH4-CT98-3721,Transnational variation in prevalence of adolescent smoking: the role of national tobacco policies and the school and family environments.Publisher PD

    News from the international study Control of Adolescent Smoking : Parental influences on smoking among Scottish adolescents

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    This study was funded by EC BIOMED II grant BMH4-CT98- 3721, Transnational variation in prevalence of adolescent smoking: the role of national tobacco policies and the school and family environments.Publisher PD

    News from the international study Control of Adolescent Smoking : Smoking, school achievement and educational aspirations among Scottish adolescents

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    This study was funded by EC BIOMED II grant BMH4-CT98-3721, Transnational variation in prevalence of adolescent smoking: the role of national tobacco policies and the school and family environments.Publisher PD

    News from the internation study Control of Adolescent Smoking. : Smoking and other health-related behaviours and health indicators in Scottish adolescents

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    This study was funded by EC BIOMED II grant BMH4-CT98-3721, Transnational variation in prevalence of adolescent smoking: the role of national tobacco policies and the school and family environments.Publisher PD

    Growth rate of binary words avoiding xxxRxxx^R

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    Consider the set of those binary words with no non-empty factors of the form xxxRxxx^R. Du, Mousavi, Schaeffer, and Shallit asked whether this set of words grows polynomially or exponentially with length. In this paper, we demonstrate the existence of upper and lower bounds on the number of such words of length nn, where each of these bounds is asymptotically equivalent to a (different) function of the form Cnlgn+cCn^{\lg n+c}, where CC, cc are constants

    On a photon-counting array using the Fairchild CCD-201

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    The evaluation of certain performance parameters of the Fairchild CCD 201 and the proposed method of operation of an electron bombarded charge coupled device are described. Work in progress on the evaluation of the parameters relevant to remote, low noise operation is reported. These tests have been conducted using light input. The video data from the CCD are amplified, digitized, stored in a minicomputer memory, and then recorded on magnetic tape for analyzing. The device will be used in an array of sensors in the aperture plane of a telescope to discriminate between photoelectron events, and in the focal plane operating at single photoelectron sensitivity at a minimum of blooming and lag
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