the microstructure and thermal properties of the synthesized block copolymers and terpolymers via atom transfer radical polymerization (atrp) were studied. the mole fraction of the blocks and chain length of the pvac-b-pma block copolymers were estimated with 1h nmr spectroscopy.differential scanning calorimety measurement shows two different transitions at 36°c and 8°c assigned to pvac and pma...

For the block cipher RIJNDAEL with a block length of 128 bits group theoretic properties of the round functions are derived. Especially it is shown that these round functions generate the alternating group.

To our knowledge, isolated dextrocardia in association with congenital complete atrioventricular heart block has not been previously reported. We report such a case, elaborate on the possible pathogenesis, and present our experience with management.

The traditional axillary perineural (PN) approach for brachial plexus block is frequently used, but separate musculocutaneous nerve (MCN) required and increases procedure time patient discomfort. We hypothesized that a using the proximal perivascular (PPV) method at MCN branching from lateral cord would obviate need an while ensuring quality similar to of PN method. For group (n = 25), needle w...

it has been sugeested since long that peripheral nerves possess opiod receptors and this has tempted clinicans in adding narcotics to local anesthetics to prolong the analgesic effects of these solutions. in this regard, we studied 45 patients undergoing surgical procedures on upper extremities. the patients scheduled for surgery were divided in to three groups, each comprising of 15 patients a...