The spirastrellolides are a novel family of structurally unprecedented marine macrolides which show promising anticancer properties due to their potent inhibition of protein phosphatase 2A. In the preceding paper, a modular strategy for the synthesis of spirastellolide A methyl ester which allowed for the initial stereochemical uncertainties was outlined, together with the synthesis of a series...

An important component of the drive towards intelligent vehicles is the ability to maintain a xed distance from a lead vehicle using feedback provided by range sensors. We are investigating the possibility of using stereo vision to provide the range information, in conjunction with a scanning laser radar sensor. The vision algorithms build on xation and reconstruction algorithms designed for ac...

Three metakaolins are evaluated for use as supplementary cementitious materials in cement-based systems. The vary mineralogical composition and fabrication (traditional flash calcination), but quite similar their surface area (16–19 m2/g), composition. Performance of metakaolin mixtures will be compared to two control (standard concrete foundation C40/50 high performance C60/75). In this study,...

Reuse of stone powder formed in the production manufactured sand is great significance to environmental protection and resource utilization. In this paper, waste calcareous rock line was added into concrete by 6%, 9%, 12% 15%, total weight controlled be constant prepare C30 C40 environment-friendly concrete. The influence on compressive strength transmission performance analyzed. It found that ...

Sheep and cow butter oils have high consumption trade rate in the market, but standards regarding type differentiation are lacking. Therefore, objective of this study was to assess distinction main molecular components sheep oils. Sanjabi Holstein butters were produced from milk collected two seasons summer autumn via conventional local method. The including fatty acids, triacylglycerols, stero...

Microeconometric Evaluation of the Active Labour Market Policy in Switzerland In the second part of the 1990’s Switzerland conducted an ambitious active labour market policy (ALMP) encompassing a wide variety of programmes. We evaluate the effects of these programmes on the individual employment probability of potential participants. Our econometric analysis uses unusually informative data orig...

Dinucleotide AppppA (5',5'''-P1,P4-diadenosine tetraphosphate) is rapidly synthesized in Escherichia coli cells during heat shock. apaH mutants lack AppppN hydrolase activity and, therefore, contain constitutively levels of AppppA, which affect several cellular processes. However, the precise role of AppppA remains undetermined. Photo-crosslinking experiments with radioactively labelled azido-A...

Reusing of stone powder formed in the production manufactured sand is great significance to environmental protection and resource utilization. In this paper, C30 C40 environment-friendly concrete were prepared by adding 6%, 9%, 12% 15% waste boulder from line into controlling total weight rock be constant. The influence on fluidity, compressive strength elastic modulus analysed. It was found th...

Polycrystalline Mo(Si,Al)2 with C40 crystal structure was deformed in compression a strain rate of 10−4 s−1 at 1300 °C. The specimens were to 10%–15% and showed maximum stresses around 150 MPa prior pronounced softening. No crack formation or significant increase porosity could be observed. Post-test microstructure analysis revealed that the material inhomogeneously on both inter- intragranular...