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What could be the possible causes for audible hum?

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Audible hum can be caused by an external source (such as a TV, which can interfere with the amplifierˇ¦s circuitry), loose RCA or speaker cables, or power and signal cables are bundled together.
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Can I hum?

Unhinged FAQTIWDAWCC (Frequently Asked Questions That If We ...
I don't know. Can you? I assume so. Humming isn't that hard. Oh, I see, are you allowed to hum when the card tells you to sing? Or in other words, can you just ignore what the card tells you as long as you do something kinda close? Uh . . . no.
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What causes a fluorescent light fixture to hum?

Frequently Asked Questions - Lighting Supply Company
All fluorescent lights require a ballast to function. Both magnetic and electronic fluorescent ballasts give off a slight humming noise; harmonics is the technical term. By design an electronic ballast has reduced harmonics and therefore the hum is less noticeable than when using a magnetic ballast. If the hum is louder than usual the ballast may need to be replaced.
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What are the possible causes?

tomach probelms including heartburn, constipation, reflux oe...
Usually the problem is caused by reflux oesophagitis, which is brought on by stomach acid that has moved up to the gullet. This usually feels like heartburn or leaves a taste of bile in the mouth. Reflux oesophagitis can be caused by the opening of the muscle around the top of the stomach, or because the stomach is being pushed due to pregnancy or obesity.
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Is it possible to effectively hum and growl on a digital wind controller?

WIND CONTROLLER FAQ (UPDATED)
Indeed it can have some form of effect, but your results will vary on several factors. There is nothing like the speed of a true analog sensor directly coupled to a true analog synth via control voltage. MIDI simply has its speed limits and the receiving MIDI synths have their limits too with regard to this. Digital/MIDI receiving synths often have smoothing which smooths out the stepping you get with MIDI's 128 discreet steps. Of course, the byproduct of smoothing is a loss of speed.
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There's a hum in my system. Why?

ADCOM FAQs
There are lots of reasons why a system can ''hum''. Some real common ones are the ''noise'' caused by Halogen lights or light dimmer switches. Another common problem is a ''ground loop'' caused by a cable TV connection. To check if this is the problem, unhook the cable feed from your system. If the hum goes away, you've found your problem. The problem can be solved by use of a ''ground loop isolator'' which can be purchased at any electronic supply store.
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What are possible causes of a high water bill?

City of Goldsboro, NC - Frequently Asked Questions
Dripping or leaking faucets inside or outside of the residence may cause a high reading. Long running toilets will also cause water consumption to increase. Broken or burst water lines will increase water consumption. If there is no indication of these situations please call 919-580-4340 to request a re-read of your water meter.
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Is it possible that my ears can get used to the noise that causes hearing loss?

Mack's Ear Care FAQ | Hearing Protection
No. If your ears seem to get used to the noise, it is only an effect caused by the deafening of your ears. Ears do not "toughen up" with repeated exposure to noise. Mack's hearing protection products can prevent this loss in quality of life from occurring.
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Is it possible that CDI causes mental problems because of disruption of hormones?

Frequently Asked Questions-Page 4
far as we know, CDI does not cause any type of mental disorder or disturbance. However, if it develops in infancy and results in prolonged episodes of sever unrecognized dehydration, the latter could result in permanent brain damage and mental retardation.
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What can I do to minimize lamp hum?

Dimmers & Lighting Controls FAQ's
Occasionally, lamps may generate noise when dimmed. This noise is caused by vibration of the lamp filament as the dimmer rapidly switches the lamp on. Lamp buzz, if it occurs,, is generally noisiest at the mid-range (50%) dimming level. We suggest the following solutions:
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Why do my light bulbs sometime hum?

Dimmers & Lighting Controls FAQ's
Light bulbs hum when filaments vibrate. Using a lower wattage or different brand bulb will usually prevent or reduce light bulb hum.
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What are the possible causes of having difficulty breathing?

Deep Breathing, Hypertension, Weight Loss, Asthma, Buteyko
Difficulty breathing can be the result of a cold or some other minor problem, but it can also often signal a major health problem. Depending on other symptoms, these problems can include pneumonia, bronchitis, asthma, allergies, panic attacks, myocharditis, chronic obstructive pulmonary disease (COPD), congestive heart failure, carbon monoxide poisoning, anemia, collapsed lung, embolism, and many other serious medical conditions. Don't ever take a breathing problem lightly.
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What are the possible causes for the medical problems veterans are reporting?

Frequently Asked Questions and Answers - War-Related Illness...
Troops may have been exposed to a variety of potentially harmful situations and/or substances during Operation Desert Shield/Storm. A list of some of these follows. Exposure to one or more of these factors could be responsible for the symptoms of the Gulf War veteran.
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What are the possible causes under which my account could be cancelled?

Newsletter Manager
It is forbidden, and therefore would be the immediate cause for cancellation of your service with no forewarning, to insert within Newsletter Manager the following contents (also under the form of external links): spamming on newsgroups, discussion forums o email designed to request more subscribed users to the newsletter.
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WHAT ARE THE POSSIBLE CAUSES FOR CLUTCH SLIPPAGE?

Centerforce
Home | Clutches | Products | News & Events | Company Info | Dealer Locator | Sponsored Vehicles | Centerforce Links | Contact Info | FAQ'S | Warranty
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What is a reading hole and what are possible causes?

RFID / EPC Technology Solutions | Texas Instruments - Custom...
Reading holes are areas within the field of an antenna where no reading is possible and can occur close to an antenna because of: Because of the physics, the RF field does not couple equally with the tag in all locations. It is possible for a tag to be close to the antenna in some orientations and still not be read. It is possible for mutual de-tuning to occur, when the size of the tag's antenna is of similar size to the reader's antenna. This could occur with an antenna designed for a printer.
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What are the possible causes of female infertility?

HORUS IVF
Inability to ovulate where there is failure to release an egg from the ovary due to hormonal abnormalities e.g polycystic ovarian disease and hyperprolactenemia. Luteal phase defect leading to poor development of the early fertilized embryo due to a short or poor luteal support. Endometriosis which is a condition where tissue that normally lines the' inside the uterus is found outside the uterus within the abdomen that produce toxic sunbstances to the sperms and the fertilized ova.
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What are possible causes of tendinitis?

Sports Medicine & Cartilage Restoration - Frequently Asked Q...
Usually, stresses and strains in the leg cause tendinitis. But tendinitis in the shin area can also be caused by:
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What are some possible causes of variable results?

Oncogene FAQ
Lack of Washer maintenance, poor pipetting techniques, contamination of the plate by reusing plate sealers for subsequent steps and reusing blotting material for subsequent steps. Use fresh plate sealers and paper towel for blotting.
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Is there an audible difference between modern MD and CD/DAT?

Minidisc Frequently Asked Questions
Since MD stores audio using a data reduction technique (see ATRAC, below) there are considerable differences between the audio signal from a CD and that of an MD digitally recorded from it. Whether or not these differences are audible however depends to a large degree upon who is doing the listening, most MD users consider the sound quality of modern MD equipment to be essentially the same as CD.
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What are the Causes?

Psoriasis Help Organisation - Online Forum
Cy, JUDGE DREDD, Madtoscratch, Lianne, lutece, SueB, akesingland, riaY, bryndavell, Groovygirl, david_8, SJ, Terrimayormaynot, jjoblogs1, anglichanin, Tom_B, bubble, TrishR, squoink, GATTACA, willy, Roger, margurita_simpson, snowy, beacon, LyndsayA, stripe77, Snow Surfer, lighthearted The material has been extracted from Psoriasis at your fingertips by Dr Tim Mitchell & Rebecca Penzer (Class Publishing).
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Quality Health | Skin Cancer, Nonmelanoma
Nonmelanoma skin cancer is usually caused by too much sun. Using tanning beds or sunlamps too much can also cause it.
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Frequently Asked Questions
Copyright © 2002-2005 Health Information Publications. The information provided on this Web site has been developed exclusively by and for Health Information Publications and ehealthMD and may not be copied without written permission. The information provided is for general information only and is not intended to replace the advice of your health-care provider. This is original material developed by Health Information Publications, Copyright © 1990-2005
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Foundation for Ichthyosis and Related Skin Types
A: The term "ichthyosis" refers to a group of disorders caused by a genetic defect which may have been spontaneous (due to a mutation of a gene) or passed on through family inheritance. The skin's natural shedding process is slowed or inhibited and, in some forms of ichthyosis, the production of skin cells is too rapid.
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Vulvodynia: Vulvar Pain Clinics: FAQ's Vestibulitis, Vestibu...
The precise cause of Vulvodynia is unknown. Some of the theories on causality include: a viral, fungal or bacterial infection; an allergic response to an environmental irritant; an autoimmune response to the body’s own chemistry; trauma; or the result of pelvic floor muscle instability. There is no clear connection of Vulvodynia to sexually transmitted disease as many of the young women affected are not yet sexually active.
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Vanishing Twin Syndrome - Answers to Frequently Asked Questi...
Just as there is no clear attributable cause for most miscarriages, there aren't always reasons or explanations for the loss of a fetus in a multiple pregnancy. In some cases, the fetus is inviable due to chromosomal or placental abnormalities. Some studies suggest that because these abnormalities are more common in older women, Vanishing Twin Syndrome occurs more often in mothers of advanced age.
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Psoriasis Help Organisation - Online Forum
riaY, ivano, SueB, Lianne, Annie G, margurita_simpson, david_8, sandy1, FelicityHelen, SPOTTY MUNCHKIN, Cy, elgrande, aimee26, GyZim, Aginoth, stewart_h, veronique, jjoblogs1, lkm, akesingland, Scofz, mattellie, Diletta The material has been extracted from Psoriasis at your fingertips by Dr Tim Mitchell & Rebecca Penzer (Class Publishing). Permission has been granted by Class Publishing to reproduce these extracts from their book
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Does the Highlander pickup hum if the amplifier does not have AC ground?

Highlander Musical Audio Products. Frequently Asked Question...
No. Our coaxial pickup and preamplifier are specially shielded so that even without a ground the pickup will not hum. Some of our customers live or perform in countries that do not have AC ground. They are very happy to report that Highlander pickups are exceptionally clean and perform perfectly all over the world. The Magnophonic Pickup for the National Tricone is a magnetic pickup (not one of our coaxial pickups).
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