I. ABSTRACT A deterministic model for predicting cambial tissue necrosis and resulting stem mortality has been proposed. The model accounts for moistureand temperature-dependent thermophysical properties, desiccation, bark swelling (where appropriate), and charring, as well as species dependent thermal tolerance properties. The tissue necrosis submodel proposes that thermal impairment of tissue...

We analyse necrosis growth due to thermal coagulation induced by laser light absorption and limited by heat diffusion into the surrounding live tissue. The tissue is assumed to contain a tumour in the undamaged tissue where the blood perfusion rate does not change during the action. By contrast, normal tissue responds strongly to an increase in the tissue temperature and the blood perfusion rat...

It has been previously shown that the amplitude of the ultrasound-stimulated acoustic emission (USAE) signal is sensitive to tissue temperature and, therefore, can help detect it. Its amplitude, however, is sensitive to both acoustical and mechanical parameters, that at most frequencies have opposite effects due to temperature. In this paper, we explore the feasibility of using a frequency shif...

Polymethylmethacrylate-based (PMMA) bone cements containing functionalized carbon nanotubes (CNTs) were prepared, and the thermal properties of the resultant nanocomposite cements were characterized in accordance with the international standard for acrylic resin cements. The aim of this study was to determine the peak temperatures during the polymerization reaction in PMMA bone cement by thermo...

Hyperthermia is a promising treatment for human cervical cancer. However, little is known about whether and under what conditions heat treatment exerts tumor inhibition effects on cervical cancer, and the molecular mechanisms behind these cellular responses have yet to be elucidated. We employed the human cervical cancer cell line CaSki as a cellular model and examined the effect of cell apopto...

"Burn-like" propane thermal injury is produced by evaporative heat loss causing damage to vital structures. Acute appearance is that of heat burn with progressive vascular compromise. Histopathologic study demonstrates epidermal and dermal necrosis followed by vascular thrombosis. Physicians should be aware of this injury and its consequence in light of the widespread use of pressurized propane...

Light and electron microscopic studies of YAG laser iridotomies were performed in two human iridectomy specimens. Full-thickness defects were created and showed stromal and vascular necrosis. The light and electron microscopic configuration of the lesions was compatible with mechanical disruption from shockwaves. Thermal changes were absent in contrast to iridotomies created by argon laser phot...

Non-thermal plasmas are gaseous mixtures of molecules, radicals, and excited species with a small proportion of ions and energetic electrons. Non-thermal plasmas can be generated with any high electro-magnetic field. We studied here the pathological effects, and in particular cell death, induced by nanosecond-pulsed high voltage generated plasmas homogeneously applied on cell cultures and nude ...

Proinflammatory cytokines are major mediators in the pathogenesis of diseases of joints such as rheumatoid arthritis and osteoarthritis. This review emphasizes that proinflammatory cytokines such as tumor necrosis factor-alpha, interleukin-1 beta, interleukin-6 and interleukin-17 are also mediators of pain by directly acting on the nociceptive system. Proportions of nociceptive sensory neurons ...

Abstract Thermal conductivity is an ambiguous material property of bone tissue that directly impacts the surgical procedure and patient’s convalescence (thermal necrosis). The study aimed to determine thermal coefficient experimentally compare results with previous results. comparative method was used reference material, PMMA, a value 0.167 W*(mK) −1 measure conductivity. Thanks obtained result...