...Ultrasound It is an assured and apparent fact that the progression of society has for the most part trailed the widening and advancement in our understanding of science and technology. Over the past centuries, such advancements has led to some of the most innovative and groundbreaking inventions in human history. The post-World War II era saw some of these basic inventions and discoveries leap into next level advancements with the help of new technology. One of the areas that benefitted largely from the technological advancements is our health care industry. With the latest innovative medicine, doctors and researchers can now do what was unthinkable in the past century or before. One small example of such innovative technology used in today’s health care industry is the Cardiac Ultrasound Machine. Our understanding of physics has helped in better diagnosing problems without having to perform invasive procedures like before. The world of imaging in medical sciences and treatment has benefitted the most from this understanding. In today’s health care, sound waves such as the ultrasounds have changed diagnostic procedures for ever. This fact is exemplified in the invention of Cardiac Ultrasound Machine. The machine mainly consists of a transducer probe, central processing unit, transducer pulse controls, display and keyboard, storage device and a printer. The functionality of the machine depends on the piezoelectric crystals and their ability to generate sound with the absorbance...
Words: 721 - Pages: 3
...propagation path reflection from walls diffraction around objects refraction due to temperature differences in the layers of air. For that reason sound is delayed and attenuated by different amounts. Reflection One happens when a sound wave encounters a medium with different impedance from which it is travelling in, for example when the sound propagating in the air hits the walls of a room (fig. 1). Sound reflects from walls, objects, etc. Acoustically, reflection results in: Sound reverberation - for small round-trip delays (less than 100 ms), Echo - for longer round-trip delays. fig. 1 ● ● Diffraction One is the bending of waves around objects and the spreading out of waves beyond openings ( figure 2). In order for this effect to be observed the size of the object or gap must be comparable to or smaller than the wavelength of the waves. Each opening acts as a new source of sound, and the waves from these secondary sources can act constructively and destructively. ● If the...
Words: 573 - Pages: 3
...LAB-2.05 SOUND 1. In the lab activity, you will examine sound waves as they are emitted from a moving source. Predict what will happen to the sound waves when the sound source is in motion. Record your prediction (hypothesis) as an “if then” statement. (For example: If you select the GO button, then the train will move) If the sound source is moving then…the sound waves will have a shorter distance between the waves in the direction the source is moving causing the pitch and frequency to be higher in the direction the source is moving. 2. Select the boy icon. Select the lowest pitch by selecting the bottom music note located to the bottom right of the lab activity. Select the GO button. What happened to the volume of the sound as the sound source moved past the observer? Record your observations. As the source moves towards the observer the volume was louder. As it moved away the volume got lower. 3. Click your mouse in any area on the page. Select the reset button on the lab activity. Select the boy icon. Select the middle note located in the bottom right of the lab activity. Select the GO button. What happened to the pitch of the sound as the sound source moved past the observer? Record your observations. The pitch was higher when the train was moving towards the boy and got lower as it moved away from the boy. 4. Click your mouse in an area on the page. Select the reset button on the lab activity. Select the boy icon. Select the highest note located in...
Words: 752 - Pages: 4
...To all the things that we do not perceive but are there for us to see are call Environmental Stimulus and we call Attended Stimulus to those things in our environment that catch our attention, the things to which we pay attention. One’s a perception happens we recognize the object or situation another proses began to transform this information into action according to our knowledge. This one is always influence by our knowledge, colors and interest. This information brought to a situation can be something learned time ago or knowledge gained by events previews to the present event. In this subject there are some tools that help us perceive they are call fundamental quintiles. They work thru our knowledge and help us recognize position, mass, or displacement. Example on a play perception of the audience is different than what goes on behind the séance. Behind the séance there are so many thinks going on that we are not aware of. On the other hand for someone when is on the audience and has work as on a play would have a different perception then everyone else, he might see the nerviest from the actors, or would see details that no one else can see. This is because our knowledge changes the perception of what we see or hear. In this example we see that the Environment stimulus is all thinks that we can potentially perceive like the trees or flowers. Aon the other hand the attended stimuli would be the bear. The process is constantly repeated all the time, our body gas sensors...
Words: 922 - Pages: 4
...M-PSK Communication System Sunil Panthi, Graduate Student, UCI spanthi@uci.edu Bhanu Pratap Reddy, Graduate Student, UCI bpreddy@uci.edu Abstract—Modeling communication system and establishing bit error rate (BER) with signal to noise ratio (SNR) is a key element in designing communication system. Based on the communication applications, communication channels vary. In cellular communication signal attenuation and fading due to the both deterministic and non-deterministic factors is common. Free space loss is the deterministic type of attenuation. Additive White Gaussian Noise (AWGN), fast fading (short term), and slow fading (long term or shadow fading) are non-deterministic type of fading. This paper focuses the non-deterministic channel modeling techniques and demonstrates the result in BER as a function of SNR. The relationship between BER and SNR are established for M-PSK system for three channel properties; AWGN, fast, and slow fading. AWGN channel was modeled by normal distribution. Rayleigh distribution were used for fast fading and lognormal distribution for slow fading is used to model. Three primary relationships created after the modeling are * BER to SNR relationship for BPSK, QPSK, 8-PSK, and 16-PSK for AWGN only channel * BER to SNR relationship for BPSK, QPSK, 8-PSK, and 16-PSK for AWGN and fast faded channel * BER to SNR relationship for BPSK for AWG, fast faded, and slow faded channel. The use case of BER to SNR is shown in a sample link...
Words: 2828 - Pages: 12
...Bradley, Il 60915 815-600-6076 braliy0025@gmail.com Education: * PCC Technical Institute Certification in Diagnostic Ultrasound/Vascular Graduated August 2006-July 2007 * University of Phoenix Online Pursuing Bachelor’s Degree Behavioral Science Present- December 2012 Work Experience Healthfair Cardiovascular Technician November 2011- Present * Performing cardiac screenings of 2-D echocardiograms, Carotid arteries, and abdominal aorta * Color flow, echo Doppler diastolic function, and measurements for echocardiogram * Color flow, Doppler, and measurement of CCA, ICA and ECA * Measurements of abdominal aorta Mid Distal and Prox. Sagittal and Transverse views | | Dr. Alaa Abdel-Meguid Echocardiography Trainee May 2007Dec2007/Present * Performing echocardiograms 2-D echocardiography, color flow, echo Doppler, Diastolic Function, M mode and Stress Echo exams for diagnostic purpose alongside lead echo tech Lisa Quick (13 Year experienced technician) * Orientate and prepare patients on procedures, complete all paperwork pertaining to scans performed Med 3000, Tinley Park, Il Collection Specialist/AR Team Lead June 2010-Present * Constantly adapt to changes in a fast-paced work environment while supervising a staff of 16 in Accounts Receivable and Collections * Evaluate patient’s financial...
Words: 522 - Pages: 3
...instruments such as guitars and violins which can be damaged by improper humidity conditions. In residential settings, hygrometers are used to aid humidity control (too low humidity damages human skin and body, while too high humidity favours growth of mildew and dust mite). While modern electronic devices use temperature of condensation (the dew point), or changes in electrical capacitance or resistance to measure humidity differences the hygrometer will always be the isntrument that paved the way. “Weather radar first came into use in the United States in 1949 with the efforts of Horace Byers (1906–1998) and Roscoe R. Braham. Conventional weather radar shows the location and intensity of precipitation. In the 1990s, the more advanced Doppler radar, which can continuously measure wind speed and precipitation, came into wide use.” Modern weather radars are mostly...
Words: 679 - Pages: 3
...Factors That Affects Study Habits of Students in Jpnhs In: Social Issues Factors That Affects Study Habits of Students in Jpnhs SURVEY FORM FACTOR THAT MOSTLY AFFECTS THE STUDY HABITS OF STUDENTS IN SECONDARY EDUCATION 4th year Question: what factor mostly affects the study habits of students in secondary education? Instructions: Put a check mark ( ) for the category that you prefer most NAME | YEAR AND SECTION | LOVE/CRUSH | FAMILY | PEER | ALJOHN MASOTES | IV-E | | | | CHRISTINA PADILLA | IV-B | | | | CHARLENE KATE GRACILLA | IV-I | | | | REYMART ALBANO | IV-B | | | | JOMAR BOGATE | IV-B | | | | HONEY GRACE VIDAL | IV-E | | | | ARRIANE GUATNO | IV-E | | | | VON JERIC DEPONE | IV-S | | | | HOWELL LANCE REYES | IV-S | | | | BRANDON MARK BRUTAS | IV-S | | | | NERISSA PANOL | IV-CDA | | | | MAY ANDREA ROBLES | IV-CDA | | | | JEZZEL MAÑALAC | IV-CDA | | | | ROMMEL BINO JR. | IV-G | | | | CYRELL ROSE CONDES | IV-G | | | | SURVEY CONDUCTED BY: SURVEY FORM FACTOR THAT MOSTLY AFFECTS THE STUDY HABITS OF STUDENTS IN SECONDARY EDUCATION 3rd year Question: what factor mostly affects the study habits of students in secondary education? Instructions: Put a check mark ( ) for the category that you prefer most NAME | YEAR AND SECTION | LOVE/CRUSH | FAMILY | PEER | ANGELU CLUTARIO | III-M | | | | ELMAR MONTEVEROS | III-O | | | | ELIZABETH ABAD | III-C | | | | RHEY MARK CASERO | III-M | | | | ANGEL ROSE MANULID | III-M | | | | ...
Words: 484 - Pages: 2
...Negative Effects of Television Television is the most famous media communication in the world. Almost all people use television with many kinds of purposes such as entertainment. In addition, television brings a good side for children to gain various knowledge outside of school. However, some parents claim that television brings many negative effects toward their children. Based on my experience, I agree with that statement. First of all, television can make a big wall among family member relationships. For instance, when children are addicted to watching television, they will feel lazy to do anything such as eating, sleeping, etc. Even when one of the family members tries to make a conversation, they will answer back as simple as possible. Thus, this kind of attitude would cause a bad effect to relationships among family members. Secondly; now days, there are many action movies shown either via theaters or vie television. Even though it is much fun, but secretly, it makes a new shape of attitude for children. For example, if children often watching action movies, in the future, their responses for everything will be full of rude moves. Therefore, it is hard for children to make a good relationship around them. Lastly, every scene of movie might give a bad influence to children. For example, there is a movie which tells the audience about an alcoholic’s life. In that case, it is possible for children to drink alcohol at such a young age. In summary...
Words: 268 - Pages: 2
...Factors Influencing Students Academic Performance in Nigeria Socio-Economic Factors Influencing Students Academic Performance in Nigeria Some Explanation from a Local Survey Nigeria like any other developing nations has witnessed series of political instability, with obvious effects on educational policies at federal, state and local government levels. This gradually laid the foundation of fallen standard in education at the primary and secondary school levels, which caused differential academic performance of students. In the quest of finding survival feet, the nation has evolved series of socio-economic and educational measures but these have not improved the social-economic status of families in the country. It is within this milieu that this study examines socio-economic factors influencing students' academic performance in Nigeria, with some explanations from Ido Local Government Area of Oyo State. The time frame of the study covers the period of 2004 to 2007. A total of one hundred and twenty (120) copies of questionnaire were administered to respondents. The study revealed that insufficient parental income, family type and lack of funding by governments are factors influencing students' academic performance. Based on these findings, certain recommendations are made towards improving student academic performance. Prominent of these include proper funding of education by government, sensitization of parents towards their children education and the support of NGOs to eradicate...
Words: 579 - Pages: 3
...how as a young adult she pulled herself out of the unhealthy lifestyle of her parents, and managed to make something of herself. In The Glass Castle, Rex and Rosemary are not the ideal American parents, but they would be considered effective. They would be considered effective because they taught their children to stand up for themselves, independent, supportive and supportive and always there for each other. One of the effects that the Wall’s parents had on their children was teaching them to stand up for themselves. “The mattress shot forward, and our arsenal of rocks flew through the air. I heard them thud against Ernie’s body and clatter on the road. He screamed and cursed as his bike skidded” (166). When Brian and Jeannette go against the neighborhood bullies they show that they may not have money or what other families have but they are clever. They demonstrate their cleverness by creating their own catapult to stop Ernie Goad and his friends. To sum it all up, Jeannette and Brian learn to stand up for themselves by being a team. The second effect that the Wall’s parents had on their children was teaching them to become independent. “I was afraid that Mr. Becker wouldn’t give me the job if he knew I was only thirteen, so I told him I was seventeen. He hired me on the spot for forty dollars a week, in cash” (215). Jeannette took care of her family, of her dad when he was drunk, of her mom when was in need of help, and of her sisters and her brother when they felt like...
Words: 561 - Pages: 3
...largesse the boards provisions to redraw school boundaries, identity of the stakeholders, and how it affect our ethics and culture strategy. Miami School District must identify the stakeholder concerns regarding the changes. The school project is the students, teachers, families, staff, and the community. The school main stakeholders in this case are mainly the student themself, because of changes made them fall apart from having new instructor, campus, and classmates. Changes will affect not only the student of being depart from their comfort of family but parents will experience of new environment for their children. The teachers and staff will experience class less because of redistribution of students. The community also will experience the effect of whether or not the location will have students in the school district. Quality of education is the number one main concern for the stakeholder towards schools. “To discourse this concern, the Miami School District can refer to studies such as Project STAR (Student Teacher Achievement Ratio) whereas negatively raising the student-to-teacher ratio affects the quality of education.” (HEROS, Inc., 2009). The reputation of the school...
Words: 885 - Pages: 4
...* Earnouts are less likely to be effective when the entire target is to be integrated into the buyer. The more the target’s operations are integrated into the buyer’s, the less control the target’s management will have over achieving performance goals. To avoid this problem, it is important to choose performance goals that will not be adversely affected by integration, or to assure the target’s operating independence throughout the earnout period. * Earnouts are less likely to be effective when the entire target is to be integrated into the buyer. The more the target’s operations are integrated into the buyer’s, the less control the target’s management will have over achieving performance goals. To avoid this problem, it is important to choose performance goals that will not be adversely affected by integration, or to assure the target’s operating independence throughout the earnout period. * Earnouts are less likely to be effective when the entire target is to be integrated into the buyer. The more the target’s operations are integrated into the buyer’s, the less control the target’s management will have over achieving performance goals. To avoid this problem, it is important to choose performance goals that will not be adversely affected by integration, or to assure the target’s operating independence throughout the earnout period. * Earnouts are less likely to be effective when the entire target is to be integrated into the buyer. The more the target’s operations...
Words: 632 - Pages: 3
...Proposal : Content on Television for children In my opinion, television is not safe for children in our society today. The television industry claims that it is not their responsibility to monitor what is readily available to children but that it is the parents’ responsibility. The industry is just there to make money. They are like any other corporate business in America, they only produce what sells, and right now the market for adult themed shows is much higher than children’s programs. Adult cartoons are being produced at a rapid rate. However, parents say they cannot be held completely responsible for what their children are watching on television and their main responsibility is to provide for their family. Studies have shown that there is a link between the amount and context of what is being viewed and an earlier sex rate in teens, sleeping difficulties in children, and the family structure being destroyed. Is the television that we as adults find humorous harmful to our children? This is important issue for society because the children are our future. How they grow and learn will affect our world for generations to come. It is the responsibility of the community to learn how to educate and inform community members on how to raise children to the best of their ability. It is a compelling issue for me because I have always been interested in how children learn and how it affects society. Knowing that one day I might be a mother has made me want to learn everything...
Words: 459 - Pages: 2
...Factors Affecting Study Habits and Academic Performance of Students Thesis Student: I. Introduction Study skills are fundamental to academic competence. Effective study skills are associated with positive out comes across multiple academic content areas and for diverse learners. The purpose of this is to describe an information-processing perspective on the contribution of study skills to academic competence, and to identify evidence-based strategies that are effective in helping students to improve their study skills. Study motivation and study skills exhibit the strongest relationships with both grade point average and grades in individual classes. Academic specific anxiety was found to be an important negative predictor of performance. In addition, significant variation in the validity of specific inventories is shown. Scores on traditional study habit and attitude inventories are the most predictive of performance, whereas scores on inventories based on the popular depth-of-processing perspective are shown to be least predictive of the examined criteria. Overall, study habit and skill measures... II. Study Habit as viewed by A. Department of Education B. Letran de Davao High School III. Advantages and Disadvantages of study habits\ Having effective study habits creates a more efficient academic environment. Planning your study schedule in advance and faithfully sticking to it saves time. Even giving consideration to small details makes a difference. Developing...
Words: 456 - Pages: 2
