Total syntheses of (+)- and (-)-1-deoxynojirimycin (1,5-dideoxy-1,5-imino-D- and L-glucitol) and of (+)- and (-)-1-deoxyidonojirimycin (1,5-dideoxy-1,5-imino-D- and L-iditol) via furoisoxazoline-3-aldehydes
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During the commissioning of the CERN Proton Synchrotron multiturn extraction, tests with different beam intensities were performed in order to probe the behavior of resonance crossing in the presence of possible space charge effects. The initial beam inten ...
Fungi cause important deteriorations of corms from Crocus sativus L. In order to screen the antifungal properties of this organ to fight such infections, two independent experiments based on the lyophilized and sterilized external (peel) and internal parts ...
A method based on phase-sensitive OTDR is proposed for distributed birefringence measurements along optical fibres. A high accuracy is experimentally demonstrated, enabling the characterisation of single-mode fibres with a minimum detectable birefringence ...
In a dramatic crisis context, Lisbon reveals itself as an attractive and dynamic city of alternative bustling creativity. Trying to understand this paradox, I analyse two successful “alternative cultural spaces”: Lx Factory and Pensão Amor. Urban strategie ...
Why are we mobile? How do we choose to move around in order to accomplish our daily activities? Are there alternatives to the use of the private car outside the city centers in Switzerland? To answer these questions, a research project has been launched to ...
Why are we mobile? How do we choose to move around in order to accomplish our daily activities? Are there alternatives to the use of the private car outside the city centers in Switzerland? To answer these questions, a research project has been launched to ...
Mix and go. The quinidine-amide (1)-catalyzed [2+2] cycloaddition between N-sulfonylimines (2) and alkyl 2,3-butadienoate (3) afforded the (R)-azetidines 4 in excellent yields and enantioselectivities. The (S)-enantiomer was obtained when a quinine-amide c ...
The invention relates to an electronic device which is capable of being transported on an airplane and includes a radio transmitter. The invention comprises: a) collecting acceleration data and/or precession data from the electronic device; b) estimating p ...
The Cr5+ ions in Sr3Cr2O8 constitute a strongly correlated spin-1/2 dimer system. Experiments show that the collective singlet-triplet excitations in this system are well defined in the zero-temperature limit, but, when heated, the inelastic neutron scatte ...
The dynamics of optical switching in semiconductor microcavities in the strong coupling regime is studied by using time-and spatially resolved spectroscopy. The switching is triggered by polarized short pulses which create spin bullets of high polariton de ...
