A Characterization of the MSA Stone Artefact Assemblage from the 1984 Excavations at Klein Kliphuis, Western Cape

2006 ◽  
Vol 61 (184) ◽  
pp. 181 ◽  
Author(s):  
Alex Mackay
Keyword(s):  
Western Cape ◽  
Stone Artefact

scholarly journals Characterization of W-Beijing isolates of Mycobacterium tuberculosis from the Western Cape

Vaccine ◽  
2013 ◽  
Vol 31 (50) ◽  
pp. 5934-5939 ◽  
Author(s):  
Crystal A. Shanley ◽  
Elizma M. Streicher ◽  
Robin M. Warren ◽  
Thomas C. Victor ◽  
Ian M. Orme
Keyword(s):  
Mycobacterium Tuberculosis ◽  
Western Cape

scholarly journals Karoo-fynbos biomass along an elevational gradient in the western Cape.

Bothalia ◽  
1978 ◽  
Vol 12 (3) ◽  
pp. 555-560 ◽  
Author(s):  
M. C. Rutherford
Keyword(s):  
Mediterranean Climate ◽  
Elevational Gradient ◽  
Total Biomass ◽  
Western Cape ◽  
Community Stability ◽  
Succulent Karoo ◽  
Winter Rainfall ◽  
Dead Material ◽  
Valid Comparison

A short characterization of the vegetational gradient from two basic physiognomic forms of fynbos, through Renosterbosveld to arid Karoo vegetation of the south-western Cape, is given with reference to possible vegetational analogues within similar gradients in winter-rainfall areas elsewhere. Description is limited to some aspects affecting biomass and its measurement, as well as to consideration of community stability needed for valid comparison of community biomass. Live individuals, including single dominant species, all other shrubs, graminoids and other herbaceous species as well as dead individuals were harvested separately in each major community type within an elevational gradient corresponding to the vegetational gradient described. Greatest biomass (14311 kg ha-1) was found in a summit restionaceous community, while lowest biomass (7564 kg ha-1) was found in a low-lying succulent Karoo community. There was an inverse relationship between elevation and percentage dead material mass and a strongly positive relationship between elevation and percentage biomass of the graminoid group. Total biomass values appear to be in keeping with available data for analogue communities in different Mediterranean climate areas, although distinct differences sometimes occur in the relative biomass contributions of component groups.

scholarly journals Characterization of Stone Cleaning by Nd:YAG Lasers with Different Pulse Duration

2006 ◽  
Vol 2006 ◽  
pp. 1-6 ◽  
Author(s):  
Laura Bartoli ◽  
Paraskevi Pouli ◽  
Costas Fotakis ◽  
Salvatore Siano ◽  
Renzo Salimbeni
Keyword(s):  
Pulse Duration ◽  
Picosecond Laser ◽  
Ablation Rate ◽  
Stone Conservation ◽  
Nd:Yag Lasers ◽  
Simulated Sample ◽  
Laser Systems ◽  
First Time ◽  
Stone Artefact

The present work is a comparative study on the laser cleaning of stonework using Nd:YAG lasers at different pulse durations. The ablation rate, the degree of cleaning, and the appearance of the treated surface were studied irradiating a simulated sample and a real stone artefact using three different Nd:YAG laser systems with pulse duration of 90 microseconds, 15 nanoseconds, and 150 picoseconds. To our knowledge, the picosecond laser is here used for the first time in stone conservation. Differences in efficiency and in cleaning result are shown and discussed.

Characterization of the genetic variation and fungicide resistance in Botrytis cinerea populations on rooibos seedlings in the Western Cape of South Africa

2013 ◽  
Vol 136 (2) ◽  
pp. 407-417 ◽  
Author(s):  
Bernard A. Wessels ◽  
Sandra C. Lamprecht ◽  
Celeste C. Linde ◽  
Paul H. Fourie ◽  
Lizel Mostert
Keyword(s):  
South Africa ◽  
Genetic Variation ◽  
Botrytis Cinerea ◽  
Fungicide Resistance ◽  
Western Cape
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