background: corneal collagen cross-linking with riboflavin, also known as collagen cross-linking (cxl), involves the application of riboflavin solution to the eye that is activated by illumination with ultraviolet a (uva) light. we survey here the topographic corneal changes one year after cxl in patients with corneal keratoconus. materials and methods: this prospective randomized clinical tria...

conclusions within the limitations of this study, disinfectants were able to completely eliminate microorganisms carried by the alginate impressions. however, more efficient disinfection methods are needed to eliminate the risk of cross contamination by condensational silicone impressions. background dental impressions often carry microorganisms that may cause cross-infection from patients to d...

We derive general expressions for the multi-tracer Fisher matrix, both assuming that cross-spectra are constrained by auto-spectra, and also allowing independent degrees of freedom in cross-spectra. show that, just like ratios power spectra, not cosmic variance. Moreover, whereas uncertainties spectra decrease with number density tracers as $\sim 1/\sqrt{\bar{n}}$, even faster, 1/\bar{n}$. simp...

The performance of the movable boards ditch opener (MB) and conventional (CD) was compared using disturbed area as a comparison parameter to determine best among two implements. experimental factors were three operating depths (30, 40 50cm) for MB in cultivated uncultivated soils, while CD soil only, because it could not penetrate more than (25cm), angles between (45, 60 750) one angle (650) (t...

Here we report a thorough analysis of cross-predictions between coiled-coil and disordered protein segments using various prediction algorithms for both sequence classes. Coiled-coils are often predicted to be unstructured, consistent with their obligate multimeric nature, whereas reverse cross-predictions are rare due to the regularity of coiled-coil sequences. We propose the simultaneous use ...

Spontaneous cross-linking in vitro, during incubation of purified collagen in nonstriated and native type fibrils, was studied to elucidate the relationship between intra and intermolecular cross-links. In nonbanded fibrils, the aldol condensation products of two allysyl residues, previously shown to constitute the intramolecular cross-link, formed spontaneously and could be isolated as such, w...

background: cross antigenicity is the major problem in developing a reliable tool for immunodiagnosis and immunoprophylaxis of parasitic diseases. mixed infection due to different types of gastrointestinal parasites is more common than single species infection under field condition. methods: the present study was undertaken to detect antigenic cross-reactivity among haemonchus contortus, oesoph...

children need to learn to use the roads safety. road safety is essential for children’s freedom, development and exercise. when walking near a road it is a good idea to: 1. hold your child's hand. 2. don't let them run ahead. 3. look out for and encourage your child to be aware of hidden entrances or driveways crossing the pavement. 4. put reins on a younger child if they're not ...

purpose: to compare the efficacy and safety of xalatan(r) with generic latanoprost (xalabiost) in glaucoma. methods: in this randomized crossover study, 17 patients with primary open angle glaucoma or ocular hypertension were randomized into 2 groups. group a received xalatan for 6 weeks followed by xalabiost for 10 weeks. group b received xalabiost for 6 weeks which was then crossed over to xa...

Assessment of the ecological status of rivers is key to monitoring the achievement of the environmental goal of the EU Water Framework Directive and the success of restoration projects. In summer of 2009 and 2010, repeated assessments of physical habitat conditions and of fish and benthic invertebrate communities were performed at low-flow conditions in 10 unmanaged and 10 channelized cross-sec...