The extent of damage to the blood-retinal barrier, induced by cryoapplication on the sclera, was measured in adult pigmented rabbits by using a vitreous fluorophotometer. In eight isolated cryopexies. the intensity of each was equalized by stopping freez.ing exactly when a white spot started to appear in the fundus. and the blood-retinal barrier damage was repaired 7-10 days after the operation...

This paper presents a commitment transformation framework for analysing the change in actors’ commitment during the transition from escalation to deescalation in information technology projects. De-escalation is potentially a more important issue than escalation because de-escalation provides remedies for the ills of escalation. Therefore, it is important to understand how stakeholders may bias...

The objective was to evaluate the survival of Mycobacterium paratuberculosis (Map) in naturally infected dairy cows feces under long periods of freezing at -18°C and -70°C. Samples were collected from cows previously tested positive with serum ELISA or fecal culture, or with clinical signs of Johne's disease. Samples were stored at -18°C and/or -70°C and recultured in Herrold's egg yolk media e...

Transscleral freezing of the dogs retina for 2 seconds icas done experimentally and demonstrated ophthalmoscopically and histologically. The residling lesion was studied from the instant of freezing to the stage of final healing. Attempts were made to alter the lesion by methods known to affect the freezing of live tissue. The Cooper-Linde cryoprobe was used to produce the lesions. Retinal free...

BACKGROUND The shift handover forms an important part of the communication process that takes place twice within the nurses' working day in the gynaecological ward. This paper addresses the topic of implementing a new system of bedside handover, which puts patients central to the whole process of managing care and also addresses some of the shortcomings of the traditional handover system. MET...

Meltwater is produced on the surface of glaciers and ice sheets when the seasonal surface energy forcing warms the snow to its melting temperature. This meltwater can run off the surface in streams or percolate through the porous snow and refreeze, which warms the subsurface through the release of latent heat. We model the percolation process from first principles using a continuum model that i...

Mutant mice are indispensable to biological and medical research, and transgenic mouse production by DNA injection into zygotes has been an important method for producing these mice which are used to examine the over-expression of genes and to analyze gene transcriptional regulatory sequences. Recently, cryopreservation of zygotes by a simple vitrification method has become popular, saving the ...

Two facts must be taken into consideration when quantifying fibronectin in biological samples: the sensitivity of the assay method and the appropriate handling of samples. A three-antibody, non-competitive ELISA was used in the present study. This procedure offers a simple, inexpensive and very sensitive technique for evaluating fibronectin: reproducible standard curves in the range 5-100 micro...

[1] Sea ice friction models are necessary to predict the nature of interactions between sea ice floes. These interactions are of interest on a range of scales, for example, to predict loads on engineering structures in icy waters or to understand the basin‐scale motion of sea ice. Many models use Amonton’s friction law due to its simplicity. More advanced models allow for hydrodynamic lubricati...

Water droplets condensing on solidified phase change materials such as benzene and cyclohexane near their melting point show in-plane jumping and continuous "crawling" motion. The jumping drop motion has been tentatively explained as an outcome of melting and refreezing of the materials surface beneath the droplets and can be thus considered as an inverted Leidenfrost-like effect (in the classi...