People have different ways of coping with stress, and some turn to cigarettes. It sounds as though you already know that smoking may not be the best way for you to deal with stress. However, as you also pointed out, quitting may continue to be a challenge. Keep in mind though, quitting doesn?t necessarily mean a one-time event; it may be a gradual process that involves a lot of commitment throu...

Pressure relief valve is one of the most important devices used on the security of pipelines, since it is responsible to guarantee the integrity of the installations. Generally, the response and behavior of a relief valve during its transient is unknown by users, who employ simplified and static analysis to design the pipeline, further, the information provided by manufactures is limited. The f...

Developing countries lacking technology infrastructures experience most disasters such as tsunami, hurricane Katrina, earthquakes. Even though, many lives are saved in developed countries through the use of high-level or sophisticated technology, only the technology that is easy to use, inexpensive, durable and field-tested should be introduced and used during the relief operation. The effect o...

Tissue or nerve injury can dramatically alter the transmission of sensory stimuli by spinal cord neurons, so that a light touch produces pain. The discovery that peptide products of prepronociceptin processing either facilitate or inhibit these mechanisms suggests novel approaches to treating these conditions.

The viral transformation of normal into tumorigenic cells is a system under active investigation . The fact that transformation is accompanied by loss of contact-inhibition has focused attention on other situations in which confluent cells can be caused to resume movement and cell division . One such system is the serum-stimulated relief of contact-inhibition in cultured fibroblasts (1, 2, 3) ....