In this study the binding abilities of 1,3-calix[4]biscrown-6 (L) toward Ba2+ and Ca2+ have beenestablished in methanol by spectrophotometric measurements at 25±0.1 °C and 0.01 M ionicstrength, and with using Specfit computer program; stability constants for 2 : 1, metal : ligandcomplexes has been estimated

in this study the binding abilities of 1,3-calix[4]biscrown-6 (l) toward ba2+ and ca2+ have beenestablished in methanol by spectrophotometric measurements at 25±0.1 °c and 0.01 m ionicstrength, and with using specfit computer program; stability constants for 2 : 1, metal : ligandcomplexes has been estimated

an experiment was conducted at zahak research station in zabol in 1996-97 to determine the best method of planting and plant density for mixed culture of cucumber and eggplant. in this experiment, yields of two crops were compared in individual and mixed cultures. in both systems the distances between two plant were 25 and 50 cm, and in the mixed culture eggplants were planted in the opposite o...

in the present study, 360 male day-old broiler chicks were used to determine the effect of mixed livevaccines of newcastle disease (nd) and infectious bronchitis (ib) on serum and local antibody responses toib. chicks were randomly divided into 12 treatment groups of 3 replicates and reared for 40 days on floorpens. groups 1 to 5 received mixed nd and ib vaccine. groups 7 to 11 received ib vacc...

laminar mixed convection of aluminium oxide (al2o3)–water nanofluid flow in an inclined annulus using a single-phase approach was numerically studied. constant heat flux boundary conditions were applied on the inner and outer walls. all the thermophysical properties of nanofluid, such as, viscosity, heat capacity, thermal conductivity, and thermal expansion coefficient, except density in the bo...

salivary  gland  tumors  accounts  for  less  than  1%  of  all  tumors.  minor  salivary  gland  tumors (msgts) are uncommon and make up about 10% of all salivary gland neoplasms. the clinical and histopathological distribution of these tumors vary geographically. a case of a 38 yr old man with a minor salivary gland mass at chin region isreported here. the tumor invaded into the anterior surf...