The History Of Radio Essays - Broadcast Engineering,

The History of Radio In 1844, Samuel Morse successfully demonstrated an invention known as the telegraph. The telegraph, which Morse invented in 1832, consisted of a current charged wire, location points (A and B), and a current breaker, which could be used to send dashes and dots. These dashes and dots could be successfully understood at the other end of the cable, thus introducing the world to Morse code. Thirty-two years later, a man by the name of Alexander Graham Bell introduced a device that would come to be known as the telephone. With Graham's device, people could actually talk to each other by using a series of connecting lines placed between the sender and receiver. At the time, the United States wanted to use this as a means for communications at sea. The only problem was that there was not a wireless form in existence. In 1897 everything changed. An Italian inventor named Guglielmo Marconi, developed the first ?wireless? system and patented it in Great Britain. In 1899, a steam ship was equipped with Marconi's device and used it to transmit the results of a yacht race back to the shore. The beginning of a new era in mass communications was beginning. As the dreams of transmitting speech and live concerts to secondary locations grew, a man by the name of Reginald Fessenden (?flyboy? Regi F to his peep's?not really but I though that might help break up the monotony of reading twenty papers over the same subject) stepped in with his application of a continuos wave super imposed on another wave created by sound. In 1905, a man by the name of Lee de Forest developed a radio vacuum tube that he called the Audion. The Audion was inspired by the invention of a glass bulb detector that had been created a few years earlier by John Fleming. This enabled the telephone to receive and amplify sound and was a key element in the development of radio broadcasting. In order to gain publicity for his ventures, de Forest spent a night on top of the Eiffel Tower broadcasting music, which was received by people up to 500 miles away. De Forest used radio as a medium to educate and uplift his audience by broadcasting opera's and broadcasting the presidential returns in 1916. By 1917, there were close to nine thousand radio transmitters in the United States. When the U.S. declared war on Germany, transmitters were either shut down, or taken over by the armed forces. With the First World War, came advances in the industry. The Allies convinced all the companies to work together in establishing interchangeable parts. Over the course of the War, the Navy continued to communicate with America's armed forces and in 1918, even broadcast President Wilson's appeal for peace to the citizens of Germany. The Navy became worried by the end of the war that Marconi's British company might be in the position to take over control of world communications. In an effort to pre-empt Marconi, Navy officials and General Electric president Owen Young formed the Radio Corporation of America (RCA) in 1919. The government then turned over all of the American Marconi stations that had been seized by the Navy during the war, to RCA. With the support of AT&T and General Electric, RCA would soon dominate communications in and out of America. By the 1920's, radio had become more than just a means for ship to shore communication. Stations began to pop up all over the country and corporate America, along with the public, began to take notice. Westinghouse began manufacturing and selling radio units. As an incentive to buy the units, programming was developed. AT&T was not pleased. They believed that under the RCA agreement, they were the only one's who could set up radio stations. In their view, radio stations were nothing short of over sized telephone booths that could be used to communicate over long geographical distances. In order to keep people listening in the interim, they began having people on the air to play music or to sing. In 1922, AT&T was approached by a developer who wanted to build Hawthorne Estates. His proposal was to pay AT&T money to talk about the

Classroom Management Essay Example

Classroom Management Essay Example Classroom Management Essay Classroom Management Essay The books and other reading supplies will be placed in a well lit quiet area so that the children will have peace and quiet when they are doing these activities and also be able to see what they are reading. The childrens personal belongings such as jackets and back packs will be placed in a closet for them when they enter into the classroom. So they will not be in the way when the children are walking around to avoid them tripping, and also during activity time so there is nothing to distract them from learning. The school supplies will be placed in each childs desk so they will be accessible at any time of the day. The walls and bulletin boards will be validly decorated with different types of learning guides Just In case the children need to look at them for a quick reference. The computers If there are any or other types of electronic devices the children may need help with powering on or activating will be place close by the teachers desk so the teacher can get back and forth to these items without distracting any of the other students by walking across the classroom, and so the coacher will be able to guide the children during these activities. Each item will be neatly placed so that is will be visible at all times. In motivating the students it is the teachers duty to make sure that they stay on task. It is good for the teacher to interact with the child so that they will know that they can always ask for help with the things that they dont quite understand. Also, the teacher should let them know when they are doing a good Job, and to encourage them to do better when they are not doing such a good Job. This could be accomplished by Glenn the child Incentives and always having an open communication with the children. Sometimes by just telling the kids they are doing a good job will keep them motivated and wanting to do well. When disciplining the children taking a step by step process would probably be the best answer for a classroom of younger children. Things such as pulling strips would be effective if you have some type of key set up for the process. Using colors or number would be a great way for the kids to get a general of how the whole thing works. Such as pulling one strip is Just a warning, pulling two strips is alone time, time out, or some other type of reflection time for the children. Pulling three strips can be a call home, and four could be getting sent to the principal or higher authority and letting them deal with the problem. Another thing that would be effective Is letting them know they types of things that will absolutely not be tolerated such as fighting, profanity, and classroom disruption and letting them know that these things will have instant disciplinary action taken. I nee teaching style Tanat ten well De uses well De Dates on ten constructivist tenure. This will allow the children to interact during activities and lessons, opposed to sitting down in a controlled environment where the teacher stands in front of the class and Just talks and talks and lets them take notes. This will help the children stay alert and also keep them interested in whats going on. Using different activities such as group discussions, partner activities, games, and even crafts will help keep them wanting to do more, instead of being bored and falling asleep during instruction mime. In conclusion, when the children are giving the freedom to have learning time where they are actually part of whats going on opposed to the behaviorism theory where the teacher is in total control of the classroom and everything else that goes on in it. It seems to be more enjoyable. The children get to interact more and have some control of what going on around them while they are learning. In doing so the children are happier and want to learn more and more because they are having so much fun that they sometimes forget that they are even learning at all.

Hospitality Operations Management Essay Example | Topics and Well Written Essays - 3000 words

Hospitality Operations Management - Essay Example In this regard we have selected tourism as our topic. In our report we would also highlight the reason why we have selected tourism as our core hospitality feature. In our study we will use secondary sources to gather our data and based on the gathered data we will reach our conclusions. Hospitality industry is a well-researched topic, and we have plenty of credible sources which can assist us in better research of the discussion questions. We will start with a brief introduction of hospitality industry and the vast services that are a part of it; further we will also give a brief introduction of tourism industry. After the introduction we will discuss and analyze our core topic and would elaborate on few of the main influential decision in the business development process for the tourism industry and how they can be eliminated to achieve the desired optimal results. We will further substantiate our discussion question with examples of various geographical regions. Once we have elaborated on the issues and discussed the solutions we would conclude our topic with the research analysis and findings. Hospitality industry is field of service industry and includes a large range of customer services such as event management, transportation, tourism and many others. The core concept behind hospitality industry is customer service which is shared by all the sub-segments of the industry. The three core categories of hospitality industry are food and beverages; this is the biggest segment of the industry and takes into account food places from the most expansive to the least (Reynolds, 2014). These also include the sub-chains which are open as facilitation to other units i.e. shopping plaza. The second part of the hospitality industry is accommodation; these include hotels, and other places offering lodging facility. These are the facilities provided by different lodging units. The third and final category of hospitality industry is travel and tourism. These

Community law Essay Example | Topics and Well Written Essays - 2750 words

Community law - Essay Example For analyzing how the principle of indirect effect effectively bridges the gap between the vertical and the horizontal direct effects, the requirements for the applicability of the direct and indirect effects have to be considered. Direct effect is of two types, namely Vertical Direct effect or Individual versus the State and the Horizontal Direct effect, wherein the litigation is between Individuals. The concept of direct effect follows from the supremacy of European Law as formulated by the ECJ. This implies that if an EC Law has direct effect then such law grants rights to individuals, which must be upheld by the national courts. For any EC Law to have direct effect, it must satisfy two conditions. First, the relevant EC Law must be part of the recognized legal order, i.e., it must be a treaty article, a regulation or a directive. Secondly, the terms of the relevant EC Law must be such as are appropriate to confer rights on individuals. Directives have vertical Direct effect only if they have clarity, precision, unconditionality in as much as they fulfil the Van Gend criteria, independence in operation and its date of implementation should have been over and the person or body against whom the directive is pleaded must be public body1 or an emanation of the state2. This has created a duty to try to interpret national law consistently with EC Law, whether or not is has Direct effect. This is the underlying principle of the indirect effect, which establishes the supremacy of EC Law.The doctrine of direct effect enables national courts to apply EC Law. Uniformity is preserved through the preliminary reference procedure using which the national courts refer to the European Court of Justice for interpretation of EC Law. The ECJ is the sole authority for interpreting the various treaties of the EC. However, this dual court system is not conducive to a single uniform interpretational application of EC Law. Treaty Articles should be so worded that they have direct effect. They must further fulfil the Van Gend En Loos criterion and should have both the vertical as well as the horizontal direct effect. This criterion states that the EC Treaty should be applicable not only to the member states but to the individuals also. EC Treaty Articles will overrule any provision of the national law, which does not conform to it, irrespective of whether it was passed before or after the passing of the articles. Similarly, regulations of the EC Treaty are capable of having vertical and horizontal direct effect. Direct applicability of these regulations is enabled by Article 249 of the consolidated version of the European Treaties. These have to be enforced by the national courts. As such limitations were imposed on the doctrine of direct effect in order to ensure that national courts did not face difficulty in implementing community law. For the application of the principle of direct effect the conditions discussed above in respect of the directives, articles and regulations of the treaty should be complied with. Whenever these conditions can not be fulfilled and the direct effect in not applicable, the principle of indirect effect will take over and the implementation of EC Law through the national courts is ensured.In the case Marshall v. Southampton Area Health Authority3 (1986) the European Court of Justice ruled that the relevant Directive had direct effect as it satisfied the four requirements of direct effect. It contended that Marshall could rely upon this to proceed legally against the State. It was also held that the Health Authority, which was Marshall's employer, was part and parcel of the State as it performed a public function on behalf of the State. This case is an example of the horizontal direct effect and in this case the health authority was considered to be an emanation of the state. In the case of Foster v. British Gas the Marshall principle was extended and the European Court of Justice ruled that the Directive had direct effect even against the private British Gas. This decision was

Critique of Kristen Lynch's Presentation Assignment

Critique of Kristen Lynch's Presentation - Assignment Example The non-Western style selected was Confucianism. This was much clearer and more complete than the Western style portion of the presentation. The connection between theory and practice was covered but only broadly, covering understanding needs, motivation, and learning style, but without explaining specifically how the non-Western style chosen fit into practice. The concluding statements cover only a small portion of the content of the presentation. Overall, in fact, a lack of detail was the greatest issue with this presentation. While brevity is generally to be praised in presentations, this particular presentation is overly simplified. In addition, the presenter does not mention the references in-text. The references section is also too short; the entire presentation is apparently based off of only two sources. The greatest strength of this presentation is in its ease of readability for the audience. The slides are well-designed, with good contrast and large text size. The amount of information on each slide is kept to a minimum, allowing the speaker to hold the audiences attention instead of the text. However, the concluding statements lose this quality, switching instead to full sentences that in one case even overlaps the edge of the

Looking At Brain Tumors Psychology Essay

Looking At Brain Tumors Psychology Essay Brain tumors are a very harmful diagnoses that can completely change a persons everyday lifestyle. It could change their lifestyle because, the symptoms that come with brain tumors. Also, it can cause personality changes and certain types of body reactions. This illness has a major effect to the patient and can also effect the family. How the brain tumor occurs is when abnormal growth of cells that are forming together. When the cells form together then it can cause a mass of tumor. There are many different types of brain tumors that exist; about 120 types that can affect a human being. Primary and secondary brain tumors can be either malignant or benign. They are also classified in different types of grades, from one to four. They rate the grades from lowest risk to highest risk, one being low risk and four being a higher risk. People that are affected by this diagnosis can cause visual, speech, and hearing change, memory problems, balance and walking problems, etc. When being diagn osis with brain tumor, there are treatments that can help fighting off the disease. The treatments depend on the type of the tumor, but it usually involves with radiation, surgery, and chemotherapy. Brain tumors are a very difficult process that can change everything about a person, or it could even be life threatening to them. The way tumors develop is when cells grow old, have damage, or die off, the body is supposed to form new cells to replace them. Brain Tumors Page Number: 2 During this process certain problems can occur and the body doesnt need the new cells, also the old and damaged cells dont die off when they should be. When this happens the cells will build up forming a mass of tumor, also called the growth of tumors (-oma, tumor) and (oncoma, mass tumor). A brain tumor is a mass of abnormal tissue growing in any part of the brain. Brain cells multiply in an uncontrolled manner and forms these tumors. These tumors can arise from any part of the brain, spinal cord or the nerves. Broadly these tumors can be divided into benign and malignant tumors (Thakur, Gahane, Bhadoriya, Jain S., Jain R., Mishra). Malignant can form cancer that can spread throughout the body, while benign doesnt form any type of cancer or even spread to other parts of the body. Benign tumors has a border edge that the cells barley invade the tissue surrounding them. The possibility for benign to spread to other parts of the body is very slim. The only cause of serious health issue is when the tumor presses on sensitive areas of the brain. A benign tumor can be removed, but they can also grow back. Sometimes a benign tumor can change into a malignant tumor. A malignant tumor can also be called brain cancer. Malignant is way more serious than benign and can also be life threatening. When a malignant tumor is forming it can rapidly grow causing damage to healthy brain tissues. Unlike benign, malignant can break away and spread to other parts of the body. The main parts would be the spinal cord or even other parts in the brain. Brain Tumors Page Number: 3 When dealing with tumors, there are different types of grades that they fall into. The grades are classified from 1 through 4, lowest risk to the highest risk. Grade 1 is normally a benign tumor that grows slowly. A grade 2 is a malignant tumor that has cells that look very different from the grade 1 cells. The third grade is also a malignant tumor that usually anaplastic abnormal cells. The final Grade is a malignant tissue that is in its worst condition. Grade 4 malignant tend to grow very fast when it occurs. Using these terms and definitions will help physicians diagnose people with these types of health problems. When diagnosing, physicians can tell a brain tumor by the way the cells look under a microscope. Brain tumors are often diagnosed on the basis of imaging and processing methods. Generically, the imaging of brain tumors aim to determine the localization, extend, type and malignancy of the pathology (Cruz-Barbosa Vellido). Imaging evaluation includes computer tomography (CT) and magnetic resonance imaging (MRI) that complement each other and describe the tumor location, local extension, compression in the neighborhood structures, superjacent hydrocephalus. Position emission tomography can differentiate recurrent tumor necrosis postoperative scarring or post-therapy edema (Clobanu, Miron, Tansanu, Dumitrescu Indrei). Magnetic Resonance Imaging (MRI) is a common data acquisition technique for Brain Tumors Page Number: 4 this task (Cruz-Barbosa Velliod). These procedures can help the physicians tell that there is a mass of tumor in the brain. It can also show what part of the brain the tumor is occurring and, what kind of tumor it may be. Following the symptoms will help physicians know if their patient is occurring a brain tumor. Usually, the symptoms depend on their type, size, aggressiveness, and the location the tumor is in the brain. There are many different types of symptoms for certain types of tumors. The most common symptoms for brain tumor would usually be headaches, memory problems, numbness or tingling in certain parts of the body like the legs or arms. Other symptoms are walking and balancing problems, vomiting, seizures, personality change, and can also affect their vision, speech, and hearing. After many tests were taken to figure out the cause of brain tumors, there were no evidences that could support the exact cause. Even though there are no evidences for the exact cause, brain tumors can occur at any age. There are certain types of tumors that fall into the children and adult categories. In the field of brain tumors there are over 120 types of brain tumors that occur in different size and location o f the brain. In oncology, this typically involves differentiating between tumor types and grades, or some type of discrete outcome prediction (Cruz-Barbosa Vellido). Some types of brain tumors that differ from one Brain Tumors Page Number: 5 another are Ependymomas, Optic Neuroma (adults), Pituitary Tumor, Craniopharyngioma, Pediatric Brain Tumor, Astrocytoma (adults), Rhabiod Tumor, Meningioma (adults), Brain Stem Glioma, etc. In adults, the most common types of brain tumors would be Astrocytoma, Meningoma, and also Oligodendroglioma. In adults about half of all CNS tumors are malignant, whereas in pediatric patients; more than 75% are malignant (Khoshnevisan). The most common tumors in children would be Ependyoma, Medulloblastoma, grade 1 or 2 Astrocytoma, and also Brain Stem Glioma. When a person is diagnosed with a certain type of brain tumor then this will help them go to the next step, which is treatment. Treatments are the first thing to do when a person is diagnosed. Just like symptoms, treatment also depends on the type, size, and location of the tumor. Treatment also depends on the age and health of the patient. When treating for brain tumors, they usually go straight to removal surgery (-ectomy), that surgically removes the tumor from the brain. If this procedure is not successful then they go to the next step which is radiation therapy, and chemotherapy (chemo-, drug, -therapy, treatment), which means drug treatment. For example, in chemotherapy there is a drug to fight off brain tumors that can go through the Blood-brain barriers (BBB). Major obstacles for brain tumor treatment including the structure of BBB and efflux transporters, and the efforts that have been used to circumvent BBB Brain Tumors Page Number: 6 and deliver drugs in the brain. In brain tumors, the delivery of anticancer drug is difficult due to presence of the BBB, which acts as physical and physiologic obstacles for delivery of drugs to the brain. Also, cancer chemotherapy is useful for a variety of brain tumors including Lymphomas, Medulloblastomas, Germ Cell Tumors, and Gliomas (Thakur, Gahane, Bhadoriya, Jain S., Jain R., Mishra). Due to the treatments, they always form a high or low risk factor. One of the risk factors a patient can go through is ionizing radiation because, of the high doses of x-rays. Ionizing radiation it directly to the head and a high dose of x-rays increases the risk for affecting the patient. No matter what are always risks when treating a illness. This diagnosis is very important to me because it relates to my little niece. Her name is Cassandra, she is 15 right now and I love her more than anything in the world. We didnt find out that she had a brain tumor until she was 3 years old. The type of brain tumor she has is Craniopharyngioma, which is a benign tumor that develops near the pituitary gland. When the pituitary gland hormone is damaged it imbalances and leads to excessive thirst, excessive urination, and stunt growth. This type of brain tumor can also damage the optic nerves that can cause visual problems, and have a possibility to increase after surgery. We were very heart broken when our family found out that my niece had a brain tumor. The first thing they tried Brain Tumors Page Number: 6 to do was removal surgery, which was not a success. Removal surgery did not work because they could only take some parts of the tumor out. If they do the procedure and took the whole tumor out, then she would be completely blind. They tried many ways to remove this tumor without the risk factor of becoming blind but they just couldnt do it. When they removed some of the brain tumor, it caused her to be blind in her left eye. She is much smaller than her normal group age, so the brain tumor did affect her stunt growth. After knowing this, we knew that her tumor would just keep growing for the rest of her life. Every time the tumor grows, she has to go to surgery and only take some of the brain tumor out. To help fight off the brain tumor from growing she takes chemotherapy. My niece went through so many surgeries throughout her life that we just couldnt keep count of them anymore. It hurts me that my niece has to go through hell every time her tumor grows back. She went through so muc h surgery that she had to wear helmets to protect the part where the skull was removed. Also, they went through her skull so much that they cant do surgery there anymore. They tried do the procedure in other ways like the nostril but her nose was too small. Her last surgery was probably 5 to 6 months ago, so eventually her tumor will be growing back soon. To keep her positive and everyone else position every year we go to the Ride for Kids, which is when hundreds of people come together with their motorcycles and ride for the kids that have brain tumors. We always ride on the motorcycles at Brain Tumors Page Number: 7 the event and at the end; we do a fundraiser to help find a way to overcome this disease. My niece is doing a lot better now that she is older, she is going to Rome Free Academy, and she is in variety cheerleading for RFA. I know my niece has been through a lot but no matter what our family will always be by her side. From my personal experiences, brains tumors can affect the patient emotionally and physically and can also emotionally affect the family. Brain tumors can be very harmful and can ruin everything from health to personalities, and daily routines. If nothing went wrong when the body forms new cells or removes the old and damaged cells, then it would not cause a mass of tumor. Brain tumors can physically affect a person by different types of symptoms. Identify the tumor and the type of tumor can help many patients take care of this disease. Most of the time removal surgery will solve the problem but, if not the health care field tries to find other ways to destroy certain types of brain tumors. It all depends on what type of brain tumor it is, the size, and the location the tumor is occurring. When being diagnosis with brain tumors there are many obstacles that you have to go through in order to stop the tumor from increasing. There are many difficult processes and effects that can take toll on a person with this illness. This certain type of disease can be life threatening Brain Tumors Page Number: 8 and, can a change a persons all around life. Work Cited Ciobanu, A., Miron, I., Tansanu, I. I., Dumitrescu, G., Indrei, A.(2011). PEDIATRIC BRAIN TUMORS MORPHOLOGICAL FINDINGS AND PROGNOSTIC FACTORS.Romanian Journal Of Functional Clinical, Macro- Microscopical Anatomy Of Anthropology /Revista Romà ¢na De Anatomie Functionala Si Clinica, Macro Si Microscopica Si De Antropologie, 10(4), 499-503. CRUZ-BARBOSA, R., VELLIDO, A. (2011). SEMI-SUPERVISED ANALYSIS OF HUMAN BRAIN TUMOURS FROM PARTIALLY LABELED MRS INFORMATION, USING MANIFOLD LEARNING MODELS. International Journal Of Neural Systems, 21(1), 17-29. Khoshnevisan, A. (2012). An overview of therapeutic approaches to brain tumor stem cells.Medical Journal Of The Islamic Republic Of Iran, 26(1), 31-40. Thakur, A., Gahane, A., Bhadoriya, S., Jain, S., Jain, R., Mishra, H. (2011). Major hurdles for brain tumour therapy and the ways to overcome them: A review. Journal Of Pharmacy Research, 4(5), 1315-1318.

We Must Fight Eating Disorders and Low Self-esteem Essay -- media and

Some people observe negative images of themselves whilst gazing back in the mirror because of subliminal advertising, mental health, and unconscious habits. The individuals staring back from the mirror at them are not real. Often times society disregards reality that no one possesses the perfect body because everyone is unique. Unfortunately, people who experience body dissatisfaction have a hard time grasping this concept of everyone being unique; consequently, they participate in life threatening problematic solutions to achieve their desired body. Eating disorders are abnormal eating habits because of the preoccupation with food and weight management (Mayo Clinic Staff, 2005). People with eating disorders have compulsions with the need to be ultra thin involving excessive or insufficient food intakes that become detrimental to an individual's physical, social and emotional health. Though eating disorders were rare until the early twentieth century, they certainly existed beforehand in the twelfth century. Eating disorders in the twelfth century have many similarities and differences of eating disorders today. Between the twelfth and thirteen centuries eating disorders originated from Catherine of Siena, who started a massive fast and cut her hair in order to make a statement. Through her lifestyle change she made a statement that Christ should be the center of one's life and cutting off her hair was a protest against â€Å"being overly encouraged to improve appearance in order to attract a husband† (Deans, 2011). Who knew fasting would evolve from a religious practice meant to stimulate a covenant relationship with the Lord, into a life threatening practice to lose weight. For instance, in the 1800s eating disorders began af... ...rstanding eating disorders, anorexia, bulimia, and binge-eating (2008). U.S national library of medicine. Retrieved November 14, 2013, from http://www.nlm.nih.gov/medlineplus/magazine/issues/spring08/articles/spring08pg17-19.html Verplanken, B., & Velsvik, R.. Habitual negative body image thinking as psychological risk factor in adolescents . ScienceDirect.com | Search through over 11 million science, health, medical journal full text articles and books. Retrieved October 15, 2013, from http://www.sciencedirect.com/science/article/pii/S1740144507001180#bib30?np=y doi:10.1016.2007.11.001 What can you do to help prevent eating disorders? | What can you do to help prevent eating disorders? | National Eating Disorders Association. Retrieved November 16, 2013, from http://www.nationaleatingdisorders.org/what-can-you-do-help-prevent-eating-disorders