1. Patterns of tree mortality as influenced by species, diameter and stand age were assessed across a gradient in wind disturbance intensity in a southern boreal forest in Minnesota, USA. Few previous studies have addressed how wind impacts boreal forests where fire was historically the dominant type of disturbance. 2. We surveyed 29 334 trees of nine species within a 236 000 ha blowdown in the...

Ultrasonic acoustic emissions (AE) in the frequency range of 0.1 to 1 megahertz appear to originate in the sapwood of Thuja occidentalis L. The AE are vibrations of an impulsive nature. The vibrations can be transduced to a voltage waveform and amplified. The vibrations of each AE event begin at a large amplitude which decays over 20 to 100 microseconds. Strong circumstantial evidence indicates...

Thuja orientalis commonly known as white cedar belonging to family Cupressacae is an monoecious small tree or shrub. It is also known as Tree of life and Orientale Arbor-Vitae in English. T. orientalis has an effective natural origin that has a tremendous future for research as the novelty and applicability are still hidden. Thuja is used for treatment of bronchial catarrh, enuresis, cystitis, ...

Background: Solitary, nodular lesions of the oral mucosa present a clinical dilemma with their similar presentation to physician. The that appear on ventral surface tongue, soft muscular organ are distinct and even rarer varied manifestations. It may occur in different locations due trauma or obstruction minor salivary gland ducts lower lip as predominant site, often overlooked during screening...