Partition temperature and energy conservation of particle production

The partition temperature estimated by Chou and Yang fore ⁺ e ^?→h ^± of the TASSO experiment is compared with the cm average energy of the secondaryh ^± using the MaxwellianP _⊥ distribution of invariant phase-space. Fireball properties and secondary temperatures are investigated fore ⁺ e ^?→h ^±, \(K^0 \bar K^0 \) , \(\Lambda \bar \Lambda \) of the mark II collaboration. The number of secondary particles is found to be equally divided among the central fireball and the other two of the fragmentation regions. Crucial tests based on energy conservation are carried out for temperature estimates for the Mark II data, and \(\bar pp\) →π at rest of the College de France-Cern experiment.     

Behavioural response of Triatoma infestans (Klug) (Hemiptera: Reduviidae) to quinazolines

The behavioural responses of the haematophagous bug Triatoma infestans towards some previously identified components of its faeces: 4-methylquinazoline, 2,4- dimethylquinazoline and their mixtures were evaluated using a video tracking system. Fifth instar nymphs and females but not males were significantly attracted to polyethylene glycol formulations of 4-methyl + 2,4-dimethylquinazoline (50 microg each). Fifth instar nymphs were also attracted to 4-methylquinazoline alone (50 microg) but females were only attracted by the mixture of both methyl quinazolines (50 microg each). Syntheses of both methyl quinazolines were carried out starting from 2-aminoacetophenone by modifying the conditions of reported procedures.     

The dynamic desorption of krypton from the zeolite chabazite

Single crystal diffraction studies of the zeolite chabazite show that at high loading krypton atoms are forced to occupy sites with unfavourable interatomic Kr-Kr separations but upon desorption of Kr the remaining Kr atoms can now occupy sites with no such unfavourable separations.