...Matthew Brady and how he suffers from hearing loss. Matthew was 19 years old when he was diagnosed with “ Noise induced hearing-loss”. It all happened when Matthew was running on the treadmill and was listening to music at a high volume and when the he stepped off the treadmill everything went silent, Matthew couldn’t hear a thing. Matthew wonder why he couldn’t hear, he couldn’t hear because of the loud music he was hearing with his earbuds. Few minutes later, Mathew’s hearing came back but not a lot and he still couldn’t. Teenagers like Matthew should still use earbuds but they should turn down the volume because loud noises over 85 decibels can damage your hearing . In addition, people should turn down the volume because if you can’t hear that will be a huge impact in your life....
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...Noise induced hearing loss, what do we know about it? How do we hear? First, the sound vibrates the eardrum and the eardrum in turn vibrates the little bones we call the hammer, anvil and the stirrup. This vibration is sent to the cochlea, which is shaped like a snail and filled with fluid. This fluid starts to ripple and the little hairs, located on the inner surfaces of the cochlea, detect the waves and transmit the electrical signals to the auditory nerve and on to the brain to be decoded resulting in hearing. The mechanics of the ear are much more complex than this description but you get the gist. Loud sounds, over time, causes the fine hairlike projections that are in the choclea to die and they do not regenerate so the hearing loss is permanent and irreversible. And sound itself is measured in decibles (or dB) and the common range is from 0 dB which is the threshold of hearing to 140 dB which is the sound of a jet taking off or a rock band. We've all used headphones at one time or another. Did you ever think about hearing loss due to your use of headphones? I know that I never did. But we know that heavy machine, lawn mower, and jackhammer operators all use foam earplugs in their ears to block the noise. According to the NIH, (National Institute on Deafness and Other Communication Disorders, Noise Induced Hearing Loss, NIH Pub. No. 14-4233, Updated March 2014) noise induced hearing loss (NIHL) can happen immediately or gradually over time. In order for...
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...Hearing Loss: An Increasing Problem Today’s youth have adopted a lifestyle revolving around technology. More and more teens and young adults have their own laptop computers, video game systems, and digital music players. The latter of which is causing an outcry from many experts. Hearing loss is more common than ever before with about 16% of Americans affected (Blue). Cranking up to volume on a music player for too long can have undesired consequences, most notably being premature hearing loss. Hearing loss resulting from listening to MP3 players too loudly is becoming an increasing problem among young adults and teenagers. Listeners need to turn down the volume on their devices if they want to save their hearing. Hearing loss in relation to music is a relatively new condition. Declining prices of MP3 players and the huge success of Apple’s IPod has put earbuds in an increasing number of American’s pockets, making the number of potential people exposed to loud music higher than ever before. The IPod can be the most dangerous of all music devices due to the design of its earbuds. Since the bud is directly in the ear, it has a stronger effect on hearing. At 80% of the maximum volume, it is safe to listen to IPods for only just over an hour per day. Compare this to over the ear headphones which can be safely listened to for almost 5 hours at the same volume level. Special sound-isolating headphones are a rapidly growing technology as well. These headphones keep all background...
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...Merriam-Webster Dictionary hearing is the “process, function, or power of perceiving sound”; now imagine if that power were gone. Hearing loss is a continuing problem in the U.S. resulting in 28 million Americans having some degree of hearing loss (Noise-Induced 1). There is not just one simple cause to this complex problem; hearing loss can be caused by multiple things such as a disease, aging, or noise. In this paper, I will be discussing how diseases, medication, genetics, aging and noise levels all have an effect on a person’s ability to hear. When we normally think of people who have lost their hearing we tend to think of the elderly. Aging is most definitely a...
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... (The Organ columnist) Did you hear something? Maybe the sound you heard was a humming bird singing a tune. Or maybe it was loud, like a drummer banging to the beat. The magnificent sounds of life are wonderful at least for now. I can hear everything around me since my name is Mr. Good Ears. With all of this being said, I am outraged by the way you young rock stars take me for granted. Just because I am small in size and appear to sit around all day doing nothing doesn’t mean I have no purpose in life. You see, for the last 14 years, I have been on your left and right side of your face. Every day of my life that I can remember, I’ve had to sit through all the physical and verbal abuse that you jerk like to call music. I just want to tell you that as an ear; I do have many purposes in life. In case you guys don’t know, sounds are everywhere, and you jerks have two cool parts on your body that let you hear them all: me, your ears? I am made up of three different parts: the outer ear, the middle ear, and the inner ear. I am in charge of collecting sounds, processing them, and even sending the sound waves to my neighbor your brain. My outer ear called the pinna is the part of me that people can see. It’s the part that you rock stars use to put holes in me. Another words, it’s what people pierce to wear earrings and what your friend whispers into when it’s time for a secret. Eyeglasses also have a tendency to sit on me. Besides providing cosmetics...
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...Emily has a hard time hearing high frequency sounds, this means that Emily is losing her hearing. People who lose the ability to hear high frequency are usually suffering from an impairment of the inner ear. This first starts of with noiseinduced hearing loss, which is a form of sensorineural hearing. Sensorineural hearing loss results from dosage to the inner ear hair cells or auditory nerve, while induced hearing loss occurs when very loud sounds damage hair cells. One example of this is listening to loud music. These hair cells are very small, and also very fragile. Dead hair cells can never be replaced. Once they are gone, they can never be replaced. A study showed that was you are sixty-five years old, more than forty precent will be gone. Emily can not get a hearing aid because, hearing aids are no help in case of sensorineural hearing loss because auditory messages are blocked from reaching the brain, as of yet there is no cure for high frequency hearing loss. Emily can receive treatment, which focuses on improving hearing rather then restoring it. Many cases the auditory nerve is actually intact. Emily can act on her hearing loss by getting a Cochlear Implants. Its job is to bypass hair cells and stimulate the auditory nerves directly. I think that this will help Emily because if the auditory nerved is intact, it is possible for Emily to still hear and will not be forced into deep anxiety. But if in fact its not, then its nothing she can do to help herself. When Emily...
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...of learning. The study of the relationship between learning and behavior is significant. This is because we need to understand how behaviors are leaned before changing them. The concepts of behavior and learning are essential for parenting. The three common learning styles include auditory (where learning is achieved through the sense of hearing), visual (where a learner grasps knowledge through seeing the learning materials) and the kinesthetic style where learners learn by interacting with materials of study by hand. Conditioning is the process of pairing a certain stimulus with an existing one. In relation to the concepts of conditioning and learning, I shall discuss the effects of media, video games and internet-based social media on teen behavior (Wade, 2010). Aggression There are various effects of media, video games or internet-based social media on the behavior of teens. One of the behaviors induced by the above named vices is aggression. Media (TV) violence can induce aggression. This can be attributed to the movies that contain violent acts such as fighting, gangster behaviors, bank robbery, rape and drug dealing. Some music clips and lyrics also contain contents that can influence aggression (Robinson, 2001). Through learning and conditioning, the teens adopt the behaviors acquired through these means. The aggression, if embraced by the teens can pose danger to the teens themselves or/and the community to which they belong. The types of video games played by...
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...Millions of people, primarily men, are affected with chronic tinnitus that usually leads to hearing loss. This literary review of Tinnitus will cover a current, basic knowledge of tinnitus, possible causes of tinnitus, conditions that may cause tinnitus, experiments involving mice to discover new findings in tinnitus research, and possible treatments that are currently being studied. Tinnitus is the perception of sound within the human ear when no actual sound is present. Though often unrecognized, tinnitus affects millions of people worldwide. Tinnitus is one of the most common physical symptoms. It affects 10-15% of the population at some point in their lives (Holmes and Padgham, 2009). Derived from the Latin word, “tinnire,” which means to ring, tinnitus is commonly experienced as high-pitched noise with mechanical, electrical, or musical qualities. The underlying pathophysiology of tinnitus is unclear. It seems unlikely there is a single underlying cause, but tinnitus may accompany almost any auditory dysfunction. Damage to the middle ear, cochlea, audiovestibular nerve, and cerebral pathways between the cochlear nucleus and primary auditory cortex may explain its origins (Holmes and Padgham, 2009). Tinnitus is the most common injury arising from the conflicts in Afghanistan and Iraq. About 75% of young adults who attend nightclubs and concerts experience temporary tinnitus from the loud music. Tinnitus also may arise during periods of stress, like finals week for college students...
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...|Environmental Research | | | |Natural Science 1 | | | |1/29/2015 | | | |April S. Domingo 1st Year BSBA Economics | | | | | |Atty. Vicente T. Peña | Environmental pollution is “the contamination of the physical and biological components of the earth/atmosphere system to such an extent that normal environmental processes are adversely affected” Pollution is the introduction...
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...high altitudes. Never self-medicate, even w/ over the counter drugs. Alcohol. 1 ounce of alcohol can give the body a physiological altitude up to 2000’. Smoking. The hemoglobin molecule of RBCs has a 200-300 times greater affinity for CO than for O2. Smoking 3 cigarettes in rapid succession or 20 to 30 cigarettes w/ in a 24 hr period gives a physiological altitude of 5000’ at sea level & a 20% reduction of night vision. CLASSIFICATIONS: Hypoxic. Occurs when not enough O2 is in the air or when decreasing atmospheric pressures prevent the diffusion of O2 from the lungs to the bloodstream. Typically, Occurs at higher altitudes. Hypemic. or anemic, hypoxia is caused by a reduction in the oxygen-carrying capacity of the blood. Anemia & blood loss are the most common causes. CO,nitrites, & sulfa drugs also cause this by forming compounds w/ hemoglobin & reducing the hemoglobin that is available to combine w/ O2. Stagnant. O2 carrying capacity of the blood is adequate, but circulation is inadequate. Conditions as heart failure, arterial spasm, & occlusion of a blood vessel predispose the individuals to stagnant hypoxia. More often, a crew member experiences extreme gravitational forces, causing the blood to be stagnant. Histotoxic. Results when there is interference with the use of O2 by body tissues. Alcohol, narcotics, & certain poisons-cyanide- interfere the cell’s ability to use an adequate supply of oxygen. STAGES Indifferent. (0’ – 10,000’) Night vision deteriorates at about...
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...SCHOOL OF AUDIO ENGINEERING Diploma in Audio Engineering RA 101: INTRODUCTION TO STUDIO STUDIES RA 101.1: INTRODUCTION TO AUDIO RT 101.1 INTRODCUTION TO AUDIO Identifying the Characteristics of Sound Sound and music are parts of our everyday sensory experience. Just as humans have eyes for the detection of light and color, so we are equipped with ears for the detection of sound. We seldom take the time to ponder the characteristics and behaviors of sound and the mechanisms by which sounds are produced, propagated, and detected. The basis for the understanding of sound, music and hearing is the physics of waves. Sound is a wave which is created by vibrating objects and propagated through a medium from one location to another. In this subject, we will investigate the nature, properties and behaviors of sound waves and apply basic wave principles towards an understanding of music. The Elements of Communication Communication: transfer of information from a source or stimulus through a medium to a reception point. The medium through which the information travels can be air, water, space or solid objects. Information that is carried through all natural media takes the form of waves - repeating patterns that oscillate back and forth. E.g. light, sound, electricity radio and TV waves. Stimulus: A medium must be stimulated in order for waves of information to be generated in it. A stimulus produces energy, which radiates outwards from the source in all directions. The sun...
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...Conception to Death Our bodies are ever changing from the moment we are conceived to the moment we die. Our bodies have many different functions that help to keep us alive every single day. We don’t think much about all our bodies do; yet everything we do affects our bodies in some way shape or form, although we really don’t have much control of our bodies while we are inside of the womb. So many things happen from conception to death so why don’t we start from the beginning and go to the end. In the beginning during the fertilization period our father’s sperm fertilizes our mothers egg by attaching itself to the egg. Then the sperms nucleus merges with the egg and combines genetic material, which makes the baby the perfect mix between the mother and father. If the sperm carries a y chromosome then the baby will be a boy and if the sperm carries an x chromosome then the baby will be a girl. The fertilized egg, now called a zygote, then travels up the fallopian tubes and into the uterus where it will call home for the next 40 weeks or so. While the zygote is on its way through the fallopian tube it will divide into 16 cells. When the zygote has entered the uterus the cells are now referred to as morula, and it proceeds to make itself at home in the uterus by burrowing into the lining of the uterus. The cells are now called blastocysts by scientists and they have an inner cell mass that is the embryo itself...
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...Nursing 122 Fundamentals of Neuro-Sensory nursing --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- Review major structures and functions of both central and peripheral nervous system. (Carolyn Jarvis, Physical Examination and Health Assessment, 3rd ed., pages 688-692 Structure and function of the CNS and PNS --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- Potter and Perry, Fundamentals of nursing (8th), Chapter 16 p. 210-211 Types of Data --There are two primary sources of data: subjective and objective. Subjective data are your patients’ verbal descriptions of their health problems. Only patients provide subjective data. For example, Mr. Jacobs's report of incision pain and his expression of concern about whether the pain means that he will not be able to go home as soon as he hoped are subjective findings. Subjective data usually include feelings, perceptions, and self-report of symptoms. Only patients provide subjective data relevant to their health condition. The data sometimes reflect physiological changes, which you further explore through objective data collection. --Objective data are observations or measurements...
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...M.Sc. Program DISTANCE LEARNING ASSIGNMENT Introduction to Occupational Health Q1.( A) Define Health Hazards. Explain the processes that can be hazardous for the health of workers with examples. ANS. Health hazard is the state of events which has the potential to threaten and / or adversely affect health of the exposed employees. Or A danger to health resulting from exposure to environmental pollutants, such as asbestos or ionizing radiation, or to a life-style choice, such as cigarette smoking or chemical abuse. Health hazards may be classified as below 1. Chemical 2. Physical 3. Mechanical 4. Biological 5. Psychosocial Above mentioned hazards as well as all other health hazards are disastrous due to their adverse effects on exposed people like Bodily injury, Disease, Change in the way the body functions, grows, or develops, Effects on a developing fetus (teratogenic effects, fetotoxic effects), Effects on children, grandchildren, etc. (inheritable genetic effects) Decrease in life span, Change in mental condition resulting from stress, traumatic experiences, exposure to solvents. Effects on the ability to accommodate additional stress Following are some processes that can be hazardous for the health of workers 1. Abrasive blasting; abrasive blasting operations can create high levels of dust and noise. Abrasive material and the surface being blasted may contain toxic materials (e.g., lead paint, silica) that are hazardous...
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...1 A DSP A-Z http://www.unex.ucla.edu Digital Signal Processing An “A” to “Z” R.W. Stewart Signal Processing Division Dept. of Electronic and Electrical Eng. University of Strathclyde Glasgow G1 1XW, UK Tel: +44 (0) 141 548 2396 Fax: +44 (0) 141 552 2487 E-mail: r.stewart@eee.strath.ac.uk M.W. Hoffman Department of Electrical Eng. 209N Walter Scott Eng. Center PO Box 880511 Lincoln, NE 68588 0511 USA Tel: +1 402 472 1979 Fax: +1 402 472 4732 Email:hoffman@unlinfo.unl.edu © BlueBox Multimedia, R.W. Stewart 1998 2 The DSPedia DSPedia An A-Z of Digital Signal Processing This text aims to present relevant, accurate and readable definitions of common and not so common terms, algorithms, techniques and information related to DSP technology and applications. It is hoped that the information presented will complement the formal teachings of the many excellent DSP textbooks available and bridge the gaps that often exist between advanced DSP texts and introductory DSP. While some of the entries are particularly detailed, most often in cases where the concept, application or term is particularly important in DSP, you will find that other terms are short, and perhaps even dismissive when it is considered that the term is not directly relevant to DSP or would not benefit from an extensive description. There are 4 key sections to the text: • • • • DSP terms A-Z Common Numbers associated with DSP Acronyms References page 1 page 427 page 435 page 443 the...
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