Warning electrical

Apply a current of 1.5 V/cm to the gel and add the buflFer-diluted samples to the wells with the current on, to avoid diffusion (warning electrical hazard, even if the voltage is low), by means of a syringe (1-10 pL from Hamilton) (se Notes 4 and 5). A 2.5-mm well diameter is suitable for 3-5 pL vol in a 1.5-mm deep gel. Check the voltage across the wicks with the voltmeter. The electrophoresis is performed at 1.5 V/cm overnight... 

Despite this warning, electricity supply security is not inevitably compromised in the event of the closure of the Ignalina 2 plant because of the existence of the fossil-fueled 1,800 MW (2006) Lithuanian Power Plant ... 

Where an electric circuit is employed the valve should close on breaking, not making, the circuit and be reset manually. A warning device should be included to indicate that resetting is necessary, to cover the eventuality of temporary electrical failure. 

A student warned his friends not to swim in a river close to an electric plant. He claimed that the ozone produced by foe plant turned foe river water to hydrogen peroxide, which would bleach hair The reaction is... 

The reason for this warning is that abrupt cessation of SSRIs produces withdrawal symptoms in about 20 per cent of patients. Symptoms of withdrawal from antidepressant medication include gastrointestinal disturbances (abdominal cramping and pain, diarrhoea, nausea and vomiting), flu-like symptoms, headaches, sleep disturbances, dizziness, blurred vision, numbness, electric-shock sensations, twitches and tremors. Abrupt withdrawal can also produce symptoms of depression and anxiety, which can occur within hours of the first missed dose of the drug.11 Withdrawal symptoms are sometimes mistaken for a relapse, leading patients to resume antidepressant medication and to conclude that they need it in order to remain free of depression. Technically, this is not considered addiction , but it does seem awfully close. 

Air intakes to heating and ventilation systems, air compressors for process, instrument and breathing air, and to prime movers for gas compressors, power generation and pumps should be located as far as practical from contamination by dust, toxic and flammable materials release sources. They should not be located in electrically classified areas. If close to possible vapor releases (as confirmed by dispersion analyses( they should be fitted with toxic or combustible gas detection devices to warn of possible air intakes hazards and snutdown and isolate the incoming air ductwork and fans. 

Perhaps the best site is that of Amnesty International at http //www.amnesty.org. Its page http //web.amnesty.orgAibrary/eng-313/index cites many dozens of case studies, a significant fraction of which involve electricity. Or type electricity into their search engine (almost hidden at the foot of the page), and be shocked at the number of so-called friendly and civilized countries that employ torture Israel, Indonesia, the USA, and many of the new countries of Europe. Be warned some of the details are horrific - electricity is a very efficient way of generating pain. 

Eighteen congressmen asked that electric blankets be labeled as hazardous for children and pregnant women. As a result, all U.S. blanket manufacturers now include warnings with their products, advising that children not be permitted to use electric blankets. 

Flammable gas detection systems are typically used to initiate an alarm at a concentration level below the lower flammable limit (LFL). Two gas alarm levels (low and high) are often utilized to allow early warning prior to taking automatic actions. Detection systems may also be used to stop electrical power and initiate process shutdown. The low alarm setpoint should be —20% LFL and the high alarm level set point should be between 40%-60% LFL. Where these devices are used to initiate process shutdown or activate fire protection systems, it is common practice to use some form of voting, typically 2 out of 2, such that the frequency of spurious shutdowns or system activation is minimized. 

Another electric signal recorded from the surface of the skull is termed contingent negative variation (CNV). This is a very late potential fluctuation in the parietal region that arises when a subject participating in a reaction time experiment is advised, through a warning stimulus, of the imminence of another stimulus to which he or she has to respond. 

The booklet is intended to give the commercial blaster information about operating with electric caps under what could be considered unsafe conditions. It gives basic info on the mechanism of RF initiation and its avoidance. The booklee warns that it is applied only to commercial electric blasting caps manufd in the US, andnot to military firing devices... 

Another subtle case, where specific interactions may obscure the effects of Coulombic criticality, is ethylammonium nitrate (EtNH3N03) +l-octanol (Tcs315K) [85], In contrast to all other known examples, the critical point is located in the salt-rich regime at a critical mole fraction of Xc = 0.77. Electrical conductance data indicate strong ion pairing, presumably caused by a hydrogen bond between the cation and anion which stabilizes the pairs in excess to what is expected from the Coulombic interactions [85]. This warns that, beyond the Coulombic/solvophobic dichotomy widely discussed in the literature, additional mechanisms may affect the phase separation [5]. 

The Wheaton roller apparatus comes in modular form. The base unit holds the drive and will roll 5 bottles. Up to 8 additional decks can be added to allow rotation of up to 45 bottles. Also available is an alarm system which gives warning of rotational failure, and an auxiliary battery system which will enable the apparatus to operate for up to 48 h in the absence of an electricity supply. 

An important reliability issue in nitride LEDs is electrical static discharge (ESD) survivability. Both commercial DH LED products on sapphire include a warning of the sensitivity of these devices. The ESD survivability of the DH GaN SiC LED chip has recently been improved and is far superior to that... 

In the United States, suppression systems using Halon 1301 (bromotri-fluoromethane) (NFPA 69,1986) to quench the flames in industrial equipment are popular because damage to the product and to electrical components and other equipment is minimized. Halon 1301 is also used for flame suppression in areas occupied by people such as in computer rooms. Extinguishing flames successfully can usually be achieved at Halon 1301 concentrations of 5% for about 10 min., which usually allows people time to escape the area without harm. Halon 1301 is colorless and odorless and has minimal, if any, central nervous effects to people below a 7% concentration for exposures of 5 min. However, the decomposition products of Halon 1301 that may result from a fire are quite toxic. They have a characteristic sharp, acrid odor that provides a built-in warning system to people. Halon compounds are fluorocarbons which are being phased out of use because of environmental concerns. Substitutes are being developed and should be considered as they become available. 

---