Simple induction of pseudopregnancy by artificial stimulation using a sonic vibration in rats

Effect of hypothalamic de-afferentation on induction of pseudopregnancy by vaginal-cervical stimulation in the rat.

It is well known that mechanical or electrical stimulation of the uterine cervix activates the corpora lutea of the rat and induces pseudopregnancy as effectively as does mating with a vasectomized male (Everett, 1964). Evidence from recent studies on the effects of electrical stimulation of the hypothalamus (Everett & Quinn, 1966) and ofhypothalamic lesions (Flerk\l=o'\,1960; McCann & Friedman...

A miniature surgical drill using ultrasonic/sonic frequency vibration

A study is presented of a miniature ultrasonic surgical drill designed for bone biopsy, based on an ultrasonic/sonic drill which converts high frequency to low frequency vibrations through a freely vibrating mass between an ultrasonic transducer-horn and a drill bit. For conventional surgical drilling using a rotary drill or an ultrasonic drill, considerable power is required to penetrate into ...

Induction of Neuroplasticity by Transcranial Direct Current Stimulation

Oxidative phosphorylation in mitochondrial fragments obtained by sonic vibration.

Until recently, progress in our understanding of the mechanism of oxidative phosphorylation in mammalian tissues has been hampered in large measure by the inability to observe the process in units simpler than intact mitochondria. The first well characterized phosphorylating submitochondrial system prepared by digitonin treatment of liver mitocondria has been extensively described by Cooper and...

scour modeling piles of kambuzia industrial city bridge using hec-ras and artificial neural network

today, scouring is one of the important topics in the river and coastal engineering so that the most destruction in the bridges is occurred due to this phenomenon. whereas the bridges are assumed as the most important connecting structures in the communications roads in the country and their importance is doubled while floodwater, thus exact design and maintenance thereof is very crucial. f...