The intercellular distribution of the enzymes and metabolites of assimilatory sulfate reduction and glutathione synthesis was analyzed in maize (Zea mays L. cv LG 9) leaves. Mesophyll cells and strands of bundle-sheath cells from second leaves of 11-d-old maize seedlings were obtained by two different mechanical-isolation methods. Cross-contamination of cell preparations was determined using ri...

Fragmenti iz zapuš?ine: pomlad – jesen 1881 [odlomki]

We introduce a new micropayment scheme, suitable for certain kinds of transactions, that requires neither online transactions nor trusted hardware for either the payer or payee. Each payer is periodically issued certi ed credentials that encode the type of transactions and circumstances under which payment can be guaranteed. A risk management strategy, taking into account the payers' history, a...

Old Age Psychiatry at the Department of Psychiatry and Psychotherapy, Charité Medical University. His primary clinical and research interests focus on memory impairments, early diagnosis of Alzheimer’s disease and other dementia disorders, neuropsychological diagnosis, functional imaging, biological markers, cerebrovascular diseases and cognitive rehabilitation. Dr Riepe is board certified in n...

Nisan and Segal (forthcoming) show that when verifying the e¢ ciency of a combinatorial allocation, without increasing the communication burden one can restrict attention to announcing a price equilibrium. We …nd that a parallel conjecture for deterministic communication fails: We demonstrate a class of valuations for which the restriction to “demand queries,” which ask agents to report their p...

Cervical cytology is a screening tool that helps to categorize patients for their risk of cervical neoplasm depending on the degree of shift from normal cervical cytology and the amount of the abnormal change seen. Since the cervix is subject to hormonal effects, the clinical context (exogenous estrogens, pregnancy, etc.) should be considered when evaluating cervical cytology specimens. The fir...