Tuesday, October 25, 2011

Freezer Temperature Controller

!±8±Freezer Temperature Controller

Brand : KegWorks
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Post Date : Oct 25, 2011 14:11:46
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Use this handy controller to regulate the temperature in your freezer between 20 - 80F . Great for turning a chest freezer into a keg refrigerator. Strictly a mechanical thermostat for cooling only, it is simple to use and economical. It operates with a gas filled probe on a 6-foot capillary tube. When the gas contracts or expands in the probe, it triggers a mechanical device inside the control which turns the power on or off. There is no probe temperature readout on the dial, so keeping a thermometer inside the refrigerator is highly recommended to keep track of the actual temperature. On most refrigerators, the controller will allow a usable range of 37 to 80 F, while on freezers, the controller will be able to reach its full 20 to 80 F range. *Keep in mind that if you use it to control a refrigerator, you will lose the use of the freezer compartment for food storage, as it will not stay cold enough for safe frozen food storage. In stock and ready to ship. Features: Made of stainless steel. Adjustable with the turn of a knob. No drilling necessary. Plug unit into wall and then run the sensor into your freezer. Male and female plug in one. Specs: Temperature dimensions: 4 3/8"H x 2 1/8"W x 1 1/2"D. Cord dimensions: 6'. Remote sensor bulb: 5 1/2"W. Remote sensor bulb capillary tube: 6'. Temperature range: 20 - 80F. Voltage: 120 VAC. . . Includes: Chain hanger kit. Instructions.

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Thursday, October 20, 2011

Fisher Scientific Jumbo Refrigerator/Freezer Thermometer; w/Naked Sensor and Sealed Bottle Probe

!±8±Fisher Scientific Jumbo Refrigerator/Freezer Thermometer; w/Naked Sensor and Sealed Bottle Probe

Brand : Fisher Scientific
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Post Date : Oct 20, 2011 22:50:05
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Thermometer; Fisher Scientific Jumbo Refrigerator/Freezer; With sealed bottle probe; Probe: 1 x 2.5 in.

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Wednesday, October 12, 2011

Important Tips For Proper Refrigeration of Vaccines

!±8± Important Tips For Proper Refrigeration of Vaccines

Medical needs are constantly changing. One constant however is the safe storage of vaccines. These life-saving drugs need to be stored at temperatures that remain at a constant. Laboratory refrigerators help store vaccines safely as well as in an absolutely hygienic environment.

Vaccine refrigerators are important because they are capable of precise temperature control. They also maintain humidity at the required levels. Refrigerators with stainless steel interiors and ducts help in the proper circulation of air that has been temperature controlled. Recent models of vaccine refrigerators also come today with an in-built panel of vaccine freezers. These can be customized to suit your needs. These vaccine refrigerators should have the capacity to store a large consignment of vaccine.

Temperatures are ideally maintained between 2-8 degree Celsius, or 35-46 degree Fahrenheit. Even the smallest of temperature differences can end up with the vaccine losing its potency.

Depending on the needs of your laboratory, vaccine refrigerators are available where there is digital temperature and status display. This allows those in the laboratory to keep a constant watch on the cooling system and react quickly in the case of a system failure. Vaccine refrigerators today come with WIFI wireless data transmitter that allows for constant updating of records and aids in remote operations.

Temperature monitoring is an important aspect of vaccine refrigerators. The CDC prescribes the need for continuous and calibrated recorders of temperature for such laboratory refrigerators. The advantages of this is that it prevents losing injections due to improper storage. This could lead to further complications if left undetected and administered to patients.

Vaccine refrigerators are of great importance, but they also require to be monitored constantly. There should be a designated person in charge. An equally competent person should be appointed as second-in-charge. An inventory log of the vaccines has to be maintained. This should include details such as the manufacturers' name, the date received, the expiration date.

Having a separate freezer section is also necessary to prevent any cross contamination or damage to the vaccines. Keeping a thermometer inside the fridge to constantly monitor temperature levels is also necessary. Having a protocol in place to handle the situation in the case of a temperature outage is necessary. The entire laboratory team should be well aware of the procedures involved.

Certain considerations have to kept in mind to get the best use of your vaccine refrigerators. For starters a vaccine refrigerator has to be placed where there is proper ventilation. Vaccines have to be stored in their original packaging between 2 and 8 degree Celsius. All suggestions made by the manufacturer have to be followed to the T. The vaccines have to be stored in such as way so that the most recent deliveries are right at the back. This allows for proper rotation of vaccines. Ensure that the vaccine packs are not leaning against the sides or the back of the refrigerator. The thermometer for checking the temperature has to be placed in the middle of the fridge. Digital thermometers are more accurate.

Vaccine refrigerators are of vital importance. Their selection and proper use is all that is needed to make sure you have a viable supply of vaccines.


Important Tips For Proper Refrigeration of Vaccines

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Wednesday, October 5, 2011

Autism and Biofeedback

!±8± Autism and Biofeedback

Johnny, age 7, was fascinated for hours by running water, lost in his own world. Like many autistic children he ran on his toes and flapped his hands to self-stimulate in hopes of controlling all the noise in his head. Even minor frustrations turned into emotional meltdowns including seizures.

When Johnny came to his first brain biofeedback sessions he would retreat under the chairs. He did not talk or read. One year and 60 sessions later he makes friends wherever he goes and acts like the Mayor of the waiting room. All his autistic symptoms have now disappeared except that he is reading one year behind grade level. He now hugs his mommy out of his love for her.

Autism is a severe lifelong neuro-biological disorder characterized by limitations of communication and socialization. Autism has grown at an alarming rate from 5 in 10,000 births in 1970 up to 1 in 166 births in 2003. Little is known about the cause of autism and related disorders on the Autism spectrum such as Asperger's.

Autistic infants typically grow normally for 12-18 months and then begin losing social and communication skills. The ability to imitate disappears. There is usually poor expressive language skills. An autistic child's outward expression never includes the triad of facial expression, word and gesture. These children do not socialize with others on the playground. Rather than a true relationships, interactions are utilitarian. Autistic children use people as tools, for example bringing mom to the refrigerator and guiding her hand to get food.

Scientific research and clinical practice are showing brain biofeedback to be a very promising remedy for autism spectrum disorders. All biofeedback starts with monitoring an aspect of your body's functioning and consists of interacting with a display of your physiology. For example, as people are relaxing their hands grow warmer. Imagine holding a digital thermometer in your fingers and letting your hand temperature go up as you relax. Biofeedback is natural, benign and non-invasive. Adverse effects from biofeedback are rare and minor such as a brief headache.

The most exciting research for autism is with brain biofeedback, called neurofeedback. For 35 years brain wave biofeedback has used software connected to an EEG to produce significant improvement in numerous disorders including seizures, migraine, and ADHD. Long term follow ups show that results are sustained and that people can shed their medications.

Recent research is proving that neurofeedback also reduces the symptoms of autism. One recent study reported a 92% success rate with an average 42% reduction in autistic symptoms. We know that biofeedback generally enhances self-regulation. Speculation about how neurofeedback works includes fostering self-repair of communication pathways and promoting maturation of brain functions.

The newest form of neurofeedback is called hemoencephalography (blood-brain-image) or HEG. HEG is proving especially effective for autism. Infrared heat sensors on the head can detect blood flow within the brain. In HEG biofeedback sessions you train to increase either blood perfusion or oxygenation at specific sites such as the frontal cortex. Infrared photos show the effect to last for days and the total effect to be cumulative.

HEG training seems to work like exercise that irrigates underdeveloped areas of the brain. Think of adding more RAM into your computer. Greater brain metabolism becomes improved neural function which shows up as better behavior and new levels of achievement.Progress from neurofeedback tends to be across the board spanning: frustration tolerance, habits, sleep, cognitive, social, emotional, behavioral and executive mental functioning.

As technology advances specific neurofeedback strategies and combinations are still being developed. Some neurofeedback practitioners focus on correcting brain wave amplitudes and bringing them in line with norms. Some use EEG brain maps to guide their training of certain frequencies at particular parts of the scalp; others use symptoms to guide placement and frequencies. For example if there are too many fast beta waves in the occipital cortex (corresponding to a busy mind) then sensors would be placed on the back of the head and the client would play computer games that reward reduced activity at 23-38 Hz.

Other professionals train down excess variability of EEG signals across the entire spectrum of brain waves at central locations on the scalp. A few practitioners have clients perform various types of mental processing challenges while training such as reading or listening to stories.

In addition to brain wave amplitudes, inter-site coherence can be a goal of EEG biofeedback training. The idea here is that you don't want too much nor too little correspondence between activity at separate sites within the brain. Specialized brain maps indicate abnormality of co-modulation between each pair of 19 sites. This mapping guides training to normalize this aspect of the EEG. All of these methods and other approaches are integrated into the neurofeedback regimen in several ways depending on the case and the practitioner. A standard of practice has not been defined.

Using any variety of neurofeedback approaches, we see near complete success for 90% of those with migraines in 20 sessions. Garden variety ADD takes 40 sessions to clear up for 80% of clients. Autistic spectrum disorders are more severe and take a larger number of sessions to produce more modest results.

Biofeedback software is now so advanced that it is fairly easy to use. The price of equipment has come down so that it has become practical for some parents to do neurofeedback training in their home under the guidance of a professional.

No one is talking about a complete "cure" for autism. However clinical successes and experimental research are progressing just as it has for the several other disorders that neurofeedback has virtually conquered. For autism, there is promising scientific research of significant improvement and reports of seriously impaired clients like Johnny completing neurofeedback training with no more autistic symptoms whatsoever.


Autism and Biofeedback

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Sunday, October 2, 2011

Digital Multimeters to Check Continuity in Electrical Appliances

!±8± Digital Multimeters to Check Continuity in Electrical Appliances

Digital multimeters are nowadays used in all industrial sectors for their versatility and capability to deliver accurate results. Though they were earlier used only by trained electricians and engineers, today with the advent of the digital version they can be used by just anyone for gauging current, resistance, and voltage.

They are nowadays used to check current continuity at home and at office. You can also use digital multimeters to test the continuity in two ends of a simple electrical cord. All you have to do is first check the resistance, or 'continuity' test function of your system. And one word of caution is to always disconnect the appliance from power source to avoid any accidents related to electrical shocks. If the meter does not indicate continuity, then there is a break in the circuit, and the cord is probably cut.

Similarly, you can also test a switch using digital multimeters. All you have to do is place a test probe on each side (pole) of the switch and then as you move the switch from the off to on position, the multimeter reading should change from zero to infinity. If not, then the switch is not working properly.

You can also use digital multimeters to test a motor. For that you have to touch a test probe to each pole, if the reading indicates zero then the motor has continuity, current can pass through, and the motor windings are good. Apart from these, you can also use this equipment to measure alternating current (AC or household current) or direct current (DC or battery current) in a live circuit. They are far better than their analog versions just like the digital pressure gauge.

You can also check voltage in various appliances using digital multimeters with a little bit of practice. People use this multipurpose equipment the condition of DC batteries if they are weak or fully charged. They are as easy to use as infrared thermometer, which has brought a paradigm shift in gauging non contact temperatures.


Digital Multimeters to Check Continuity in Electrical Appliances

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