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Now showing items 21-30 of 47
Understanding human coronavirus HCoV-NL63
(Bentham Science, 2010)
Even though coronavirus infection of humans is not normally associated with severe diseases, the identification
of the coronavirus responsible for the outbreak of severe acute respiratory syndrome showed that highly ...
Expression, purification and preliminary crystallographic analysis of recombinant human DEAD-box polypeptide 5
(International Union of Crystallography, 2010)
The DEAD-box RNA helicase DDX5 is involved in many aspects of RNA
processing and has been implicated in a number of cellular processes involving
alteration of RNA secondary structure. The N-terminal region of DDX5, ...
Predicting gamma-ray burster redshifts from their prompt emission properties
(Oxford University Press, 2010)
This paper presents a study of the relation between gamma-ray burster redshift and several
of its prompt emission properties (spectral lag, light curve variability, peak energy, rise time
and the peak bolometric flux ...
The South African Astronomical Observatory: a treasure house of history and biodiversity
(Botanical Society of South Africa, 2010)
Traces the history of the Royal Observatory Cape of Good Hope, today known as the South African Astronomical Observatory (SAAO). Describes the flora and its management.
Examination of maternal gingival crevicular fluid for the presence of selected periodontopathogens implicated in the pre-term delivery of low birthweight infants
(Landes Bioscience, 2010)
Background: Reports show that more than 20 million infants world-wide are born prematurely with 95% of all pre-term
births occurring in developing countries. Oral colonization of Gram-negative anaerobes has been implicated ...
The role of ground water in Sub-Saharan Africa
(Wiley-Blackwell, 2010)
Although water resources managers speak of a water crisis in Africa, the management of ground water has to
date not featured strongly in national and regional African water agendas. Examination of the physical environment
of ...
Two new variable sdB stars, HE 0218−3437 and LB 1516
(Oxford University Press, 2010)
We present photometry which shows that two known hot subdwarf stars, HE 0218−3437 and
LB 1516, are variable. LB 1516 exhibits several frequencies in the range 12–25 cycles d−1
(periods of about 1–2 h) with amplitudes ...
UBV(RI)C JHK observations of Hipparcos-selected nearby stars
(Oxford University Press, 2010)
We present homogeneous, standardized UBV(RI)C photometry for over 700 nearby stars
selected on the basis of Hipparcos parallaxes. Additionally, we list JHK photometry for about
half of these stars, as well as L photometry ...
Browser-based sign language communication
(Telkom, 2010)
This paper describes the design and evaluation of two browser-based video communication prototypes that support sign language communication between Deaf people. The research explores combinations of technologies, protocols ...
Digital watermarking: a state-of-the-art review
(IIMC International Information Management Corporation, 2010)
Digital watermarking is the art of embedding data, called a
watermark, into a multimedia object such that the watermark can be detected or
extracted later without impairing the object. Concealment of secret messages inside ...