Efficient and direct iodination of alkyl benzenes using polymer/HIO4 and I2 under mild condition

An efficient and rapid method has been found for the iodination of aromatic compounds using iodine and polymer-supported periodic acid (PSPIA) as an oxidant under mild aprotic conditions. The reagent after the completion of the reaction was easily removed by filtration and was regenerated for further use. This method has some advantages such as: mild reaction conditions, straight forward procedure, inexpensive method, high yields and one-pot conversion. KEY WORDS: Iodine, Polymer-supported periodic acid, Oxidant, Iodination Bull. Chem. Soc. Ethiop. 2014, 28(2), 305-308.   DOI: http://dx.doi.org/10.4314/bcse.v28i2.1

The Effect of Intrauterine Cephapirin on Treatment of Endometritis in Commercial Dairy Cattle

Summary To evaluate the effect of intrauterine cephapirin on treatment of endometritis 39 Holstein dairy cows that affected with postpartum endometritis were selected and randomly assigned to two experimental designs. In experiment 1, 6 out of 14 cows were 25 to 30 days after parturition were treated by intrauterine oxytetracycline. Another 8 cows were treated by intrauterine cephapirin (Metri-Care). In experiment 2, 25 cows that were 55-60 days after parturition received three types of treatment. 6 cows were received only PGF2α, 9 cows were received PGF2α and procaine penicillin G, and 10 cows were treated by intrauterine Metri-Care. Cervical mucosa was collected before and after each treatment. There was no significant difference between mean (±SD) of neutrophils before and 14 days after treatment with them. Conception rates of cows received oxytetracycline and Metri-Care were 66.66% (4/6) and 37.5% (3/8), respectively. There was significant difference between mean of neutrophils before and 14 days after treatment at all groups. Conception rate of cows received only PGF2α was 33.33 % (2/6) and in cows received penicillin and PGF2α was 55.55% (5/9) but in cows received MetriCare was 90.0% (9/10). Therefore, Metri-care may be good choice for treatment of postpartum uterine infection in cow

Serum acute phase proteins in cows with SARA (Subacute Ruminal Acidosis) suspect

The aim of this study was to evaluate the variations of Acute Phase Proteins (APPs) and other blood constituents during the onset of the sub-acute ruminal acidosis (SARA) pathological status. A total of 108 cows from 12 dairy herds were randomly selected and divided into three Groups of 36 animals each. All animals were subjected to a rumenocentesis. Group A was composed by subjects with a rumen pH>5.8, Group B was composed by subjects with a rumen pH ≤5.5≤5.8 and Group C was composed by subjects with a rumen pH<5.5. Blood samples were collected by jugular venipuncture and Haptoglobin (Hp), Serum Amyloid A (SAA), Total Proteins, Albumin and White Blood Cells (WBC) were determined. One-way ANOVA showed a statistical significance on Rumen pH, Hp, SAA. SARA seems not stimulate the APPs production from liver

Nano Silica/ HIO 4 as a Green and Reusable Catalyst for Synthesis of 2-Naphthol Azo Dyes under Grinding Conditions

Abstract: Nanosilica periodic acid (nano-SPIA

Evaluation of Sialic Acid and Acute Phase Proteins (Haptoglobin and Serum Amyloid A) in Clinical and Subclinical Bovine Mastitis

The present study was conducted to evaluate the concentrations of sialic acids (total, lipid bound and protein bound) and their correlation with acute phase proteins (haptoglobin and serum amyloid A) in clinical and subclinical mastitis of cattle. Thirty subclinical mastitic cows with positive California mastitis test (CMT) test and no clinical signs of mastitis, 10 clinical mastitic cows and 10 healthy cows with negative CMT test and normal somatic cell count were selected. Milk and blood samples were collected after confirmation of clinical and subclinical mastitis by somatic cell count and bacterial identification. Serum haptoglobin (Hp), serum amyloid A (SAA), total sialic acid (TSA), lipid bound sialic acid (LBSA) and protein bound sialic acid (PBSA) were measured by validated standard methods. Haptoglobin and SAA increased significantly in both types of mastitis compared with control group (P<0.001). However, the ratio of HP/SAA was significantly different from the control group only in clinical mastitis. The results showed that TSA and LBSA were significantly different in control group compared with clinical and subclinical mastitis (P<0.001). Protein bound sialic acid did not change in subclinical mastitis in comparison with control group (P=0.86). There was positive correlation between LBSA and PBSA in clinical mastitis (r=0.72, P=0.02) whereas significant negative correlation was observed between LBSA and PBSA in subclinical mastitis (r=-0.62, P<0.001). Results also showed no correlation between Hp and SAA with each other or with any other parameters in study groups

An Imperial frontier of the Sasanian Empire: further fieldwork at the great wall of Gorgan

The 2006 season has yielded significant new insights into the Great Wall of Gorgan's relation to landscape features and settlement, notably the division of the associated complex water supply system into sectors. The westernmost part of the wall is buried deeply beneath sediments from a past transgression of the Caspian Sea. An unexpectedly high number of brick kilns, of standardised design, shed light on the manner of the wall's construction. Geophysical survey, satellite images and excavations have established that some or all of the associated forts were densely occupied with buildings, thought to be barracks, suggesting a strong military garrison