Bentonites from the 10th Khutor deposit (Republic of Khakassia, Russia) are considered a potential buffer material for isolation radioactive waste in crystalline rocks Yeniseyskiy site (Krasnoyarskiy region). This study presents results series permeameter experiments with bentonite compacted to dry densities 1.4, 1.6, and 1.8 g/cm3, saturated permeated by artificial groundwater Site. Permeation...

AIM: The present study aimed to compare the clinical efficiency of facial pressure bandage, that intramuscular injection dexamethasone (8 mg) on postsurgical sequels (swelling, pain, and trismus) extraction impacted mandibular third molar. METHODS: implemented a randomized split-mouth design. Patients with symmetrical bilateral molars were eligible for trial. Sides randomly assigned two groups:...

High pressure behaviour of Na-hectorite in water media shows surprisingly strong similarities to graphite oxide compression in liquid media considering rather different chemical composition and structure of these two types of materials. Crystalline swelling with pressure induced insertion of additional solvent layer (not correlated with pressure point of liquid media solidification) was observe...

Utilizing hydrogels to harvest salinity gradient energy from solutions of different salinities has recently attracted interest. Polyelectrolyte exhibit cyclic swelling/deswelling when alternately exposed freshwater and seawater. This can be utilized convert the mixing two into mechanical energy. Hydrogels consisting a semi-interpenetrating network (semi-IPN) poly(4-styrene sulfonic acid-co-male...

In a boiling liquid expanding vapor explosion (BLEVE), the superheating and boiling of the liquefied gas inside the vessel as it fails is important information necessary to understand the mechanism of this type of disaster. In this paper, a small-scale experiment was developed to investigate the possible processes that could lead to a BLEVE. Water was used as the test fluid. High-speed video wa...

Ferenc Horkay (!) Section on Tissue Biophysics and Biomimetics, Laboratory of Integrative and Medical Biophysics, NICHD, National Institutes of Health, 13 South Drive, Bethesda, MD 20892, USA e-mail: [email protected] Abstract Small-angle neutron scattering (SANS) has been used to investigate the effect of salts (NaCl and CaCl2) on the structure of DNA and polyacrylic acid (PAA) gels. In the...

In a previous communication (I) it was reported that the cell walls of Streptococcus fecalis (ATCC 9790) were susceptible to digestion by lysozyme. This finding subsequently allowed the preparation of protoplasts from these organisms by treatment of whole cells with lysozyme and the use of high concentrations of sucrose as the impermeantl substance necessary for osmotic stabilization. Further i...

Objective: Standard compression stockings are used to create elastic pressure in correcting and maintaining the hemodynamics of deep vein thrombosis (DVT) and prevent limb swelling in patients with DVT. This study aimed to compare the effect of aerobic exercise with lower extremity elastic pressure on some hematological features of obese patients with DVT. Materials and Methods: For this purpo...

Expansive soils can be found in many parts of the world particularly in arid and semi-arid regions. These soilspose a significant hazard to civil engineering structures due to its high swelling and shrinkage potential. This paperpresents the results of an experimental program developed to investigate the effect of cyclic drying and wetting on theswelling potential of expansive soils with variou...

BACKGROUND Increased intracranial pressure usually leads to bilateral disc swelling. HISTORY AND SIGNS A patient presented with recurrent visual disturbances following trabeculectomy in the right eye. Intraocular pressure in the right and left eye were 11 and 24 mmHg, respectively. The optic nerve head was swollen in the right, but not in the left eye. Lumbar puncture showed an opening pressu...