Sperm morphometry is a part of the semen analysis based on CASA technology and has shown a big role in the prediction of male fertility. This analysis implies the use of stain techniques, although it has been shown that staining can make dramatic changes in the cell morphometry in different species. The aim of the present work was to evaluate the differences in sperm morphometry in Alpaca, intr...

We consider the partial order on partitions of integers deened by removal of rim hooks of a given length. The isomorphism between this poset and a product of Young's lattices leads to rim hook versions of Schensted correspondences. Analogous results are given for shifted shapes. A shape, or Young diagram, is a nite order ideal of the lattice P 2 = f(k; l) : k; l 1g. Each shape = f(i; j) : 1 j i...

The effects of circle hooks on blue shark Prionace glauca catch in a pelagic longline fishery were assessed in fishing experiments on two research essels in the western North Pacific off the coast of Japan from May to September 2005. We used conventional tuna hooks (standard Japanese ook size; 3.8 sun) and two sizes of circle hooks (4.3 sun and 5.2 sun) for each fishing operation and compared c...

Along history of the long hook: the first paper regarding hook length control in the flagellum appeared about 40 years ago. Silverman and Simon (1972) found that a flaE (the previous name of fliK in Escherichia coli) mutant produced extraordinarily long hooks, which they named polyhooks, and concluded that the flaE gene “functions to control the length of the hook” (22). Around the same time, P...

Caudal epididymal spermatozoa of golden hamsters were incubated in capacitation medium. Their movement patterns changed as they became hyperactivated and underwent the acrosome reaction. To understand the basic mechanism by which changes in movement pattern are brought about, digital image analysis was carried out on the flagellar movements recorded with a video system. The degree of flagellar ...

1 2 Colleen R. Courtney, Loralyn M. Cozy, and Daniel B. Kearns* 3 4 Indiana University 5 Department of Biology 6 Bloomington, IN 47408 7 8 Current address: 9 New York University 10 Sackler Institute of Microbiology-Parasitology 11 New York, NY 10016 12 13 Current address: 14 University of Hawaii 15 Department of Microbiology 16 Honolulu, HI 96822 17 18 19 Corresponding author 20 Email: dbkearns...

Clotting blood contains fibrin-bound thrombin, which is a major source of procoagulant activity leading to clot extension and further activation of coagulation. When bound to fibrin, thrombin is protected from inhibition by antithrombin (AT) + heparin but is neutralized when AT and heparin are covalently linked (ATH). Here, we report the surprising observation that, rather than yielding an iner...

The aim of our study was to evaluate the shoulder function after clavicular hook plate fixation of acute acromioclavicular dislocations (Rockwood type III) in a population group consisting exclusively of high-demand military personnel. This prospective study was carried out at a tertiary care military orthopaedic centre during 2012-2013 using clavicular hook plate for management of acromioclavi...

objective it has previously been shown that prenatal maternal administration of boswellia serrata gum resin (frankincense) improved learning and memory performance associated with an increase in the size of neuronal bodies in ca3 (cornu ammonis) of hippocampus. continuing the previous work, a morphometric study was designed on ca3 field to examine precisely the effect of prenatal administration...