Marginal increase of sunitinib exposure by grapefruit juice

Clinical Oncolog

Stratospheric aerosol - Observations, processes, and impact on climate

Interest in stratospheric aerosol and its role in climate have increased over the last decade due to the observed increase in stratospheric aerosol since 2000 and the potential for changes in the sulfur cycle induced by climate change. This review provides an overview about the advances in stratospheric aerosol research since the last comprehensive assessment of stratospheric aerosol was published in 2006. A crucial development since 2006 is the substantial improvement in the agreement between in situ and space-based inferences of stratospheric aerosol properties during volcanically quiescent periods. Furthermore, new measurement systems and techniques, both in situ and space based, have been developed for measuring physical aerosol properties with greater accuracy and for characterizing aerosol composition. However, these changes induce challenges to constructing a long-term stratospheric aerosol climatology. Currently, changes in stratospheric aerosol levels less than 20% cannot be confidently quantified. The volcanic signals tend to mask any nonvolcanically driven change, making them difficult to understand. While the role of carbonyl sulfide as a substantial and relatively constant source of stratospheric sulfur has been confirmed by new observations and model simulations, large uncertainties remain with respect to the contribution from anthropogenic sulfur dioxide emissions. New evidence has been provided that stratospheric aerosol can also contain small amounts of nonsulfate matter such as black carbon and organics. Chemistry-climate models have substantially increased in quantity and sophistication. In many models the implementation of stratospheric aerosol processes is coupled to radiation and/or stratospheric chemistry modules to account for relevant feedback processes

Pretoriana, no. 036 & 037, Aug.-Dec 1961

Herinneringe aan die eerste uitgawe van Pretoriana / J. Ploeger -- Dr. Jan Ploeger, 'n gewaardeerde medewerker / H.M. Rex -- Key to index = Sleutel tot die register -- Use of index : an explanatory note -- Subject index = Sakeregister -- Index of authors = Register van outeurs -- Wierdastraat / J. Ploeger -- Annual report, 1961 = Jaarsverslag, 196

Pretoriana, volume 4, no. 3

Editorial : Inertia -- Jaarverslag van die Genootskap Oud-Pretoria -- Annual report of the Association Old Pretoria -- Die vervaardiging, aanbrenging en verwydering van die oorspronklike Republikeinse wapen en leuse op die voorgewel van die Goewermentsgebou / H.M. Rex -- Herinneringe van Mevr. Katharina Cornelia Peters-Louis / J. Ploeger -- Oblomov en die per

Pretoriana, no. 18, Dec. 1955

Die Eeufeesjaar is verby / W. Punt -- Albert Brodrick : winkelier en digter van ou-Pretoria /H.M. Rex -- Memories II / by Mrs T.J. Rodda -- Wie was hulle? -- Kleinenberg en Kleynenberg

Pretoriana, no. 054, Aug. 1967

Die lotgevalle van die Staatsmodelschoolgebou, 1902-1910 / Jan Ploeger -- One thousand meetings around Pretoria's "Horseshoe" / H.P.H. Behrens -- Danville : westelike voorstad van Pretoria / G.J. van Eck -- Besonderhede aangaande Regter S.G. Jorissen / Jan Ploeger -- Grondwet van Genootskap Oud-Pretori

Pretoriana, no. 055 Dec. 1967

Dr. T.S. van Rooyen -- Die straatname van die Pretoriase voorstad Danville-uitbreiding no. 2 / G.J. van Eck -- Lys van besienswaardighede in Pretoria / H.M. Rex -- Skooltuinekompetisie 1967 -- Jaarverslag van die Genootskap Oud-Pretoria / N.A. Coetzee -- Lotgevalle van die Staatsmodelskoolgebou, 1909-1931 / J. Ploeger -- Old Pretoria Society constitutio

Pretoriana, no. 022 Dec. 1956

An open-air museum for Pretoria -- An association Old Benoni? -- The open-air museum / F.J. du Toit Spies -- The Netherlands open-air museum -- Diverse gegewens i.v.m. die oprigting en opening van die Staats-modelskool / H.M. Rex -- Die skerm- en gimnastiekvereniging Transvalia / J. Ploeger -- Pretoriuskloof / H.M. Rex -- 'n Gedenksteen vir landdros Du Toit -- Die grafsteen van Graaf Pretoriu

Pretoriana, volume 1, nos 3 &4, March 1952

1652-1952 / W. Punt -- Uit bewoë tye / J. PLoeger -- De Bruyn se skoenwinkel / J.A. Valks -- Investigation Baines paitings / H.P.H. Behrens -- Grant of arms -- Die eeufeeus-album = The centenary album -- Herinnerings uit Oud-Pretoria / C. Morgan -- Kochstraat en Bosmanstraat / H.P.H. Behrens -- Street names of Pretoria / C.J. Beanes -- Oorlog en 'n koerant / T.S. van Rooye