Tinnitus
A police officer fires his handgun while target practicing. He forgot to put on his ear muffs and suddenly after the shot, he hears a faint buzzing sound. In this example, over time, the ringing will probably fade for the officer. Almost everyone will experience tinnitus in their lifetime. After all, loud noises are impossible to avoid completely. There is only a problem when the sound from the tinnitus does not stop, or it continues to get louder with time. For many people around the world, the ringing, buzzing, hissing or chirping sounds that make up tinnitus (tin-Night-us; Tin-nit-us) or acoustic trauma never go away (Alliance). There are several definitions of the word tinnitus. Tinnitus Away defines it as "a noise heard in the ear, or the sensation of noise as a ringing that is purely subjective." Hear USA says tinnitus is "a noise heard in the ears." According to Tinnitus.com, Tinnitus was defined in 1999 as a sensory disorder. What does all of this mean? Basically, tinnitus is the perception of sound by an individual when there is no external source of that sound. Sound burst hearing loss is due to damage to the auditory receptors, the hair cells, inside the ear. The vibration of these hair follicles is what allows humans to hear so when they become damaged, the auditory sense is set off, and the resulting noise is the sound heard by millions of tinnitus sufferers. The other damage done to the ear by sound bursts that creates hearing loss is the deflation of the cochlea. This damage is usually caused by prolonged exposure to a continuous loud noise. Acoustic traumas are caused by an explosive sound, sudden and loud, that can cause hearing loss (Goldstein, 2002). The effects of these traumas can fade. However, they do not always go away. A college student who had a fire cracker explode in his hand only fifteen inches from his ear still had a ringing sensation two years after the incident.
According to the Internet Armory, sound is physically just a rapid change in air pressure above and below the atmospheric pressure. The decibel, dB, named after Alexander Graham Bell, is used to describe this change in pressure. Zero dB is the threshold of human hearing, and 120 dB is the pain threshold. Decibels increase logarithmically so 10 dB is 10 times as powerful as one dB, and twenty dB is ten times as powerful as that.
Hearing allows us to take in noises from the surrounding environment and gives us a sense of where things are in relation to us. All those little folds on the outside of the ear, called the tonotopic organization, make it so sound waves in the air are directed to the ear canal, where they can be further processed. Once in the ear, the sound waves vibrate the ear drum, which tell the ear exactly what frequency it is sensing. The vibration of the ear drum is not quite enough to send a signal to the brain, so it needs to be amplified, which is where the three tiny bones in the ear come into play. The malleus or hammer, incus or anvil, and stapes or stirrup amplify this sound and send it to the cochlea. The cochlea conducts the sound signal through a fluid with a higher inertia than air, so this is why the signal from the ear drum needs to be amplified. It is much harder to move the fluid than it is to move the air. The cochlea basically takes these physical vibrations and turns them into electrical impulses that can be sent to the brain. This is...
Furthermore, their society consisted of four social classes. Their four social classes were made up of pilli (nobles), machehualles (commoners), and tlacotin (slaves). These classes showed an order of power with the pilli being the most powerful and tlacotin being the least powerful. In the empire most of the high positions were inherited but one could obtain a high position by serving the emperor. The social classes among the Aztecs grew the social classes became sophisticated and complex as soon as they began to construct their empire.
The Aztec built a powerful empire that became a dominant and formidable force. The empire supported an enormous population, encompassed a vast territory and yielded an abundance of precious metals and other natural resources. Several factors contributed to the overall success of the empire, including an ideal geographical location and a social hierarchy that imposed law and order. To maintain such a vast domain the Aztec had to employ tactics that included domination and subjugation of enemy forces and an enormous slave population, as well as the organization of resources necessary to support an empire. The collapse of the Aztec Empire came relatively swiftly at the hands of a small, but menacing, force of Spanish conquistadors, who had set their sights on invading the territory, displace the indigenous leaders, and seize their immense reserve of gold. The downfall of the Aztec centered on ineffective leadership, internal conflicts, susceptibility to germ warfare and a history of brutality against their enemies.
Sound is created by vibrations that travel in waves, with the longer, more spread out waves being lower pitched sound, and shorter, closer together waves being higher pitched sound. Sound waves travel through the air or water (or whatever is in their way) to reach your ear and vibrate your eardrum, which in turn lets you hear.Sound can not be heard in space because there is no air for it to travel on. Volume is measured in decibels, with a pin drop at about 15 decibels, a 12-gauge shotgun being at about 160 decibels, and a normal conversation at about 65 decibels.
The Aztec people had a complex hierarchy system. In this system, there were different levels of societal structure that one could be in. Their hierarchy was divided into three main sections-the Emperor(41), the nobles(42), and the commoners(43).
...ce of petty crimes will lead to the increment in the number of serious crimes. Just like other authors, Bratton believes that the examination of crime statistics by time, place and other factors is very effective in discovering how to organize police resources. However, all these readings fail to integrate Kauffman's ‘Theology of Consensus’ which would have enabled readers to understand and appreciate least splendid but vital aspects of the police department.
By the turn of the twentieth century, criticism was developing over the ineffective and illegitimate character of local police departments. During this time period, the Progressive Era, many changes were taking place in America. Urbanization was bringing many people to large, increasingly industrial cities of the day. City officials were required to redesign many facets of urban life as cities continued to grow. This atmosphere of reform was also carried over into policing. Roberg et al. argues that the 1920s to 1960s were “probably the most significant period in the development of policing in the United States” (2012). During this time period, the foundations of professionalization were laid down. The reform model of policing dominated police work during this time period (Roberg et al. 2012). This model was characterized by a commitment to base the police-community relationship on law and police policy. It was now understood that police action should not be influenced by politics or personal opinions. To avoid this, police departments were now efficiently and centrally m...
Thesis: Diabetes type 1 is different from type 2 and if given the wrong treatment it could lead to devastating consequences.
I woke up and I was mortified. It was the first thing in my mind when I opened my eyes and I just could not believe this silly little thing had become as involuntary as breathing. I tried another song, but it would come back without me realizing it. I walked to work and it came with me, I sat in class and it spoke louder that my professor's voice, I even took a nap and it kept me awake. I had a stupid song stuck in my head and it wouldn't go away.
...diseases. Signs and symptoms also vary; they are broken down into early, secondary, and late. Complications also fluctuate depending on the lifestyle and control that the patient has over his insulin. First signs are not good to have and most are, overlooked by the patient. Treatments can range from simple injections to the use of more complicated machinery. Diabetes does not choose a specific race, age, or gender, but any person is at risk. Depending on the diabetic's lifestyle and habits in everyday life, longevity and normal living will triumph.
Hearing loss is a major global public health issue. Hearnet (2017) defines hearing loss as “a disability that occurs when one or more parts of the ear and/or the parts of the brain that make up the hearing pathway do not function normally” (para. 1). There are many different types of hearing loss, which can have multiple causes, giving each individual experiencing the issue a unique hearing loss case. These types include Auditory Processing Disorders, when the brain has problems processing sound information; Conductive Hearing Loss, a problem with the outer or middle ear which prevents sound making its way to the inner ear; and Sensorineural Hearing Loss, when the Cochlea or auditory nerve is damaged and cannot
This era is where the shift from a centralized task force has gravitated to a decentralized task force, causing some friction from both the community and the officers that serve it. Police are told that they are needed to listen to the concerns for the community; however, law enforcement is still the primary goal. Police forces now have to defend the values for which the forces were built upon. The idea of problem solving has come into question with police discretion towards certain run-ins with the law. Williams and Murphy argue it is due to the lack of sensitivity from minorities and the concern on crime itself than the community. Kelling and Moore contradict Williams and Murphy, with Kelling/Moore suggesting the era is more about listening to concerns of the community and improving the citizen satisfaction. But both the article came to the conclusion of the silent underlying problems that are becoming more of a “quiet riot” with the police and the
While the life and work of a police officer, commonly referred to as a cop, may be portrayed as exhilarating and adrenaline-charged though the television set, it does not tend to unfold the same way in real life. However, the general responsibilities of detection and prevention of crime, coupled with the maintenance of public peace does remain constant in both real and fictitious cop life. In order to truly understand the life of a cop, one must go to the source. In William Bratton’s and Peter Knobler’s Turnaround, they provide that source through the firsthand account of Bratton’s life and work as a cop, with all of his ups and downs.
Imagine not being able to have a snack or candy whenever you want to in a day. Many people have to watch what they eat, especially diabetics because of lack of insulin in their bodies. They have to watch their sugar intake daily and also keep up with insulin shots. Diabetes is a life long disease which isn’t easy to have without new technological advancements. The rapid growth of technology has made health care more successful, specifically in the advancements for the cure and treatments of diabetes.
The ear is an organ of the body that is used for hearing and balance. It is connected to the brain by the auditory nerve and is composed of three divisions, the external ear, the middle ear, and the inner ear. The greater part of which is enclosed within the temporal bone.