46 research outputs found

    Scenario of Accelerating Universe from the Phenomenological \Lambda- Models

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    Dark matter, the major component of the matter content of the Universe, played a significant role at early stages during structure formation. But at present the Universe is dark energy dominated as well as accelerating. Here, the presence of dark energy has been established by including a time-dependent Λ\Lambda term in the Einstein's field equations. This model is compatible with the idea of an accelerating Universe so far as the value of the deceleration parameter is concerned. Possibility of a change in sign of the deceleration parameter is also discussed. The impact of considering the speed of light as variable in the field equations has also been investigated by using a well known time-dependent Λ\Lambda model.Comment: Latex, 9 pages, Major change

    The Physics of the B Factories

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    Linguistic Production Abilities of 3-Year-Old Children Born Premature with Low Birth Weight

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    Using norm-referenced and informal language sample analyses, this study describes the language production abilities of 30 children born premature with low birth weight. Only four of the subjects demonstrated clinically significant language problems at 3 years of age. The language problems of these four children did not appear to be related systematically to their birth weight, gestational age, length of neonatal hospitalization and severity of respiratory illness, socioeconomic status, family structure, or cognitive level and were best characterized by circumscribed expressive syntax difficulties.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/67816/2/10.1177_105381519101500402.pd
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