The Off-Broadway Show Jitney Is Based On A Dramatic Play, Written By A

The off-Broadway show Jitney is based on a dramatic play, written by August Wilson. The production is held at the Union Square Theater. The house has a very pleasant, cozy and warm atmosphere. The structure of the small theater and its thrust stage successfully achieves intimacy. It also creates a bond between the actors and the audience, enabling the audience to relate to the characters feelings and emotions. In other words, the house was perfectly chosen for the production. The production was created very cost efficiently; at least the set was. It accomplished that by using a constant set throughout the entire show. The design of the set was very simple and consisted of inexpensive props that were on stage from the beginning to the end. Characters brought small props on to the stage, like a cup of coffee, a magazine, even a gun. But that wasn't enough of visual stimulation. Watching the same settings for two and a half hour can make the spectator very tired and bored. I can't say that the set didn't serve the production's purpose, but it could have been better. In order to keep the spectators interested and capture their absolute attention, a variety of visual stimuli have to be introduced into the production. The constant set and lack of visual effects made the show dull and less exciting than it could have been. The show tried to introduce some kind of change to the set, by the use of lighting. Donald Holder, the lighting designer succeeded in achieving the perception of change from day to night and sunrise to sunset. But his greater accomplishment was the setting of the light in a certain way to establish the mood of the scene. As in the scene where Youngblood went to sleep on the sofa of the jitney station, the red-hot lights that illuminated the set, portrayed a feeling of resentment and anger. The costume designer, Susan Hilferty also did a remarkable job designing the costumes. They incredibly represented the time that the play took place, which was late 1970's. They also indicated the persona and distinctiveness of each the character. Youngblood dressed in jeans, tang tops, leather jacket and was always wearing a baseball cap. His wardrobe represented his boyishness and his immaturity. Shealy's flamboyant attire represented that he is a flashy character, and that he likes to show off. One similarity that all the costumes had was that they represented a low to middle class of people. My favorite aspect of the show was the performance itself. The actors' performance was extremely realistic and convincing. They brought so much emotion and passion to each scene and each conflict that the spectators felt convinced that the character is the one on stage and not the actor. The expressions on their faces, the looks in their eyes, their bodily movements made their characters come to life. The scene of the quarrel between Youngblood and Rena involved so many different emotions of love, mistrust, companionship and misunderstanding, and it was all displayed on their faces. Her voice sounded as though she is in a lot of pain and is about to burst into tears, from the gossip that she heard from Turnbo. Russell Andrews who played Youngblood also did a great job showing his pain from being misunderstood, doubted and distrusted. He showed his pain with hand gestures of anger and with love in his eyes and on his face. The performance in that scene was so powerful that the audienc e felt their pain. Especially because everyone goes through an experience of either distrusting someone or being distrusted. Personally I was able to relate to many scenes of the play, including the one in which Booster discovers his father Becker. I was there when my best friend found out her mother has died, and her reaction was almost identical to the one Keith Randolph Smith put on. The anger and the pain combined together created a very dramatic scene of violence and regret. All of the actor's performances were truly astonishing

Research Paper Introduction about Climate Change

Research Paper Introduction about Climate Change We usually pay attention to how the weather changes throughout a week, a month, or even compared to previous few years. On the other hand, there are changes that are not visible and can only be observed by scientists using sensitive equipment. Certain patterns in weather that have a tendency to recur each year are called a climate. Nowadays scientists claim that there are major changes to the climate all over the world that will have, or already have, dire consequences. Consider these facts provided by NASA: Global temperature increased by 1.4 degrees Fahrenheit since 1880. Nine of the ten warmest years on record have occurred since 2000. The amount of land ice decreases by 258 billion tons per year. Greenland ice loss doubled between 1996 and 2005. The amount of carbon dioxide parts increased to 399.60 per million. Its levels in the air are at its highest in 650,000 years. The amount of arctic ice decreases by 13.3 percent per decade. In 2012, Arctic summer ice shrank to the lowest extent on the record. The primary factor that affects all the other changes in our climate is the temperature change. What are the main reasons the temperature changes throughout the years? There is a certain amount of heat that the Earth gets from the sun, and there is also a certain amount of heat that bounces back to the space. Our temperature depends on both these factors. The point is that when the heat reaches the Earth and then is reflected back to the atmosphere, the certain amount of it is stopped by the so called greenhouse gases. They are vital for keeping the right amount of heat on the Earth so that all the living creatures can exist on our planet. However the increasing amount of it changes the average temperature which can lead to unprecedented changes in our climate. The greenhouse gases include water vapor, carbon dioxide, methane, and nitrous oxide. Their number has increased due to burning of fossil fuels, which has become the primary source of energy for people nowadays. It is difficult for most of us to understand why a slight increase in the average temperature on the planet can somehow influence us. Consider this example: there are a lot of glaciers that are at the verge of melting and increasing the temperature by even one degree can make this process begin. In addition, such climate changes can result in longer period of droughts in some regions, the increasing number of wildfires, and the bigger number of tropical storms. That being said, we are going to make an in-depth analysis of all the factors that cause the greenhouse effect, the consequences, including the potential ones, and the ways of solving this problem. The current and future consequences of global change (2014). Retrieved from http://climate.nasa.gov/effects/ What Is Climate and Climate Change? (2014). Retrieved from https://eo.ucar.edu/basics/cc_1.html How to Write an Introduction on a Scientific Research Topic: Remember that an introduction is no less important than any other part of your research paper. Therefore, you should be careful of what information you add to it. Your research paper introduction should be presentable, as it is the first thing your audience will read. Therefore, provide some highlights from the paper to catch the readers attention. The length of your introduction depends on the length of your research paper, but dont go overboard. The introduction shouldnt be longer than one page.

Business Law Essay Example | Topics and Well Written Essays - 1500 words - 18

Business Law - Essay Example Invitation to treat has been defined as an expression of willingness of a party to enter into negotiations with another with the hope that a contract would be reached at the end of such negotiations. (Fisher v Bell)1. An offer on the other hand has been defined as an expression of willingness by a party to enter into a contract on stated terms (offeror) and provided that such terms would be accepted by the person to whom the offer is made (offeree) a contract would come into existence(Carlill v Carbolic Smoke Ball Co.)2. An offer should be differentiated from a mere statement of price that is an enquiry as to the price. (Harvey v. Facey)3 In the current scenario it can be seen from the facts that Angela has shown her intent of selling the caravan and stated a price. Even though the term ‘offering’ has been used, it is generally not to be held conclusive and the overall facts of the situation are taken into account when deciding whether an offer or an invitation of treat was present. In the case of Angela it can be seen that she Angela has posted a letter and has stated a price of  £2000 for which she would sell the caravan, therefore it can be deduced that an unequivocal willingness on her part was present. The next issue that would be looked into is acceptance which is defined an unequivocal assent to the terms that has been proposed by the offeror. The acceptance of certain terms and conditions which had been stated by the offeror and which tend to introduce new terms would be treated as counter-offer, that is a new offer comes into existence which can either be rejected or accepted by the person who was originally the offeror (and now becomes the offeree). (Hyde v. Wrench)4. Acceptance is generally held to be valid only when it has been validly communicated and the offeror comes to know of such acceptance. (illustration of the fact was made by Denning LJ in Entores v Miles Far East Corporation). However, there are a

The Effects of Cigarettes Smoking on Low Birth Weights of Infants Term Paper

The Effects of Cigarettes Smoking on Low Birth Weights of Infants - Term Paper Example These pregnancy outcomes are known to be associated with infant mortality (Kochanek & Martin, 2005). Hypothesis In this observational study it has been hypothesized that women who are smokers, on average, will give birth to infants with birth weight less than 2500 grams than those who are non-smokers Cigarette Smoking in the United States The prevalence of smoking in the adult U.S. population in 1965 was 42.4% (51.9% of men in the U.S. and 33.9% of women) (Giovino, 2002). More men than women continue to smoke (25.1% of men and 21.2% of women), however the decline in women smoking is at a far slower rate than that observed in men. The gap in the rate of smoking between men and women has diminished from almost 20% in 1965 to less than 5% in 1997 (MMWR, 1999). In spite of numerous reports since the mid 1960s about smoking and health risks (U.S. Surgeon General, 2001), a Department of Health and Human Services report released stated that 23% of the U.S. adult population smoked cigarettes between 1999 and 2001 (DHHS, 2004). Ebrahim, Floyd, Merritt, Decoufle, and Holtzman (2000), using data from the National Behavioral Risk Factor Surveillance Survey (BRFSS) of 187,302 non-institutionalized women aged 18-44, found that the prevalence of current smoking decreased significantly among both non-pregnant women (26.7% to 23.6% and pregnant women (16.3% to 11.8%) between 1987 and 1996. A 1999 report stated that 21 % of all U.S. women and 12.3 % of pregnant women in the U.S. reported smoking during pregnancy (Mathews, 2001). The Effects of Cigarette Smoking on Reproductive Outcomes Cigarette smoking has been known for decades to be related to poor reproductive outcomes (Annette, 2008). Cigarette smoking during pregnancy is associated with first trimester spontaneous abortion, ectopic pregnancy, preterm birth, placenta previa and abruption, low birth weight, restricted intrauterine lung growth, and sudden unexplained infant death (Hofhuis, de Jongste, & Merkus, 2003). Further , cigarette smoking has been associated with fetal loss, respiratory distress syndrome and other respiratory conditions of the newborn, and sudden infant death syndrome (Schoendorf & Kiely, 1992). In addition, it is estimated that 17 to 26% of low birth weight infants, 7 to 10% of preterm deliveries, and 5-6% of prenatal deaths could be prevented if pregnant women did not smoke (Husten, Chrismon, & Reddy, 1996). In terms of birth defects, one study, using the 345 cases of infants with clubfoot and the 3,029 controls of the Atlanta Birth Defects Case Control Study database, Honein, Paulozzi, and Moore (2000) identified an approximate 20- fold increased risk for clubfoot to occur in infants born to women who had a family history of clubfoot and who also smoked cigarettes (OR=20.30, 95%CI: 7.90, 52.17). This risk for clubfoot was much higher when both factors were considered together than the risk associated with either of these risk factors alone (OR=1.34, 95%CI: 1.04, 1.72 for cigare tte smoking alone; OR=6.52, 95%CI: 2.95, 14.41 for family history alone). There have been numerous studies published about the association of cigarette smoking in pregnancy and low birth weight. For example, a population-based Swedish study (n = 538,829) showed that smoking

To prove that during the 19th and 20th century, women were considered Research Paper

To prove that during the 19th and 20th century, women were considered to be inferior beings with no rights, they faced constant oppression in a society dominated by the male - Research Paper Example Holt provides a profound analysis in her article about the content of the story in the poem, "Goblin Market." The poem was written in 1862 (in the 18th century) as a manifestation of the plight that women went through at that time. Holt notes that the author of the poem, Christina Rossetti made a an insightful presentation of two sisters, Lizzie and Laura who were forced to endure carnal lust just to embrace a higher and perceived purer realm of human sexuality, which is marriage (Holt 51). The poem is evidence of a strong thematic expression of renunciation that revolves around the lives of the two beautiful sisters. In the end, the two sisters subdue their fervent feelings for carnal lust, and they embrace their spiritual nature by getting married in a traditional Victorian marriage. However, the main theme and subtle undertone in the poem as argued by Holt and other prolific literature analysts is feminism. An incisive analysis by Holt into the poem depicts the dearth of male description and participatory segments until the end of it. Men are not mentioned as largely as the two sisters, a factor that shows subtle feminism. In the poem, men are the sellers of the goblin fruits in the local market but their actual mentioning is not extensive since the author focuses mainly on the lives of the two sisters, Lizzie, and Laura. Lizzie is depicted as a religious one due to her staunch Christianity affiliation. She is portrayed as a person who rescues her sister, Laura by playing the critical role of spiritual and earthly redemption (Russell, 143). Holt is insightful in exposing the depth of lust that the men selling goblin fruits at the market are showing. The men are subtly expressing their harbored objectivity for women. Holt notes that at the beginning of the poem, the author shows how the men objectify women. The men sing a

Transducers used in the Cardiac Ultrasound Machine.

Transducers used in the Cardiac Ultrasound Machine. Transducers used in the Cardiac Ultrasound Machine. Abstract: Ultrasound imaging depends on the ability of piezoelectric crystals to generate sound when excited with alternating current and the reverse effect of charge accumulation or current flow when such crystals are subjected to pressure from sound waves. The first known ultrasound imaging machine was designed by K. T. Dussik in Australia in 1937. However, despite its widespread acceptance today, medical ultrasound did not develop as rapidly as X-ray imaging. Despite the relatively slow start, medical ultrasound imaging is very widely accepted today because there is no ionising radiation involved and hence the procedure is relatively safe. Ultrasound equipment is also cheaper as compared to X-ray imaging, magnetic resonance imaging, MRI and other techniques associated with nuclear medicine. The procedure involves minimal patient discomfort and is very useful for examining the soft tissues or the developing foetus. A dramatic increase in the number of older patients with chronic he art and valve disease has resulted in a prolific demand for the ultrasound cardiac imaging machines which can satisfy the requirements associated with fast and cost effective measurement of cardiac anatomy or function. One of the critical elements in the medical ultrasound imaging system is the ultrasound transducer without which signal processing and visualisation of the soft tissue images is impossible. Although many naturally occurring substances such as quartz exhibit the piezoelectric effect, lead zirconate titanate (PZT) ceramic ferroelectric materials have for many years been used for biomedical applications because of their superior characteristics for soft tissue imaging.   Polyvinylidene difluoride (PVDF), transducer material has demonstrated advantages as a high frequency receiver. Single or multilayer transducers made of these elements can be used for ultrasound imaging as single transducers operating in A-mode or a two or three dimensional transducer array for B-mode, C-mode or M-mode ultrasound imaging. This brief essay takes a look at transducers for medical ultrasound. The principle of operation of a cardiac ultrasound imaging device is based on the information that is provided by the varying delay times of echoes that are reflected from various depths of the human body tissue as a result of the ultrasound pulses that are generated by an ultrasound transducer being incident on the body tissue. Delay times of echoes from different depths are different and ultrasound is reflected from the interface of different types of tissues. A Doppler shift in frequency is also generated as a result of moving objects and the attenuation of ultrasound waves depends on the type of tissue that the ultrasound wave is travelling through. The ultrasound transducer which is responsible for the generation and detection of reflected ultrasound is, therefore, an essential component of the ultrasound imaging device. Ultrasound transducers work on the basis of the piezoelectric effect in which an alternating voltage applied to piezoelectric crystal material causes the crysta ls to become electrically polarised as a result of the applied electric field and hence vibrate with the alternating voltage to produce sound. Such crystals also become electrically polarised when stress is applied to them and hence any sound waves which are incident on them result in charge accumulation on the crystal surface and hence the generation of an alternating voltage. Thus, an ultrasound transducer consists of a suitable piezoelectric material sandwiched between electrodes that are used to provide a fluctuating electric field when the transducer is required to generate ultrasound. When the transducer is required to detect ultrasound, the electrodes may be used to detect any fluctuating voltages produced as a result of the polarisation of the crystals of the piezoelectric material in response to incident sound which generates fluctuating mechanical stresses on the material. Piezoelectric materials include quartz, ferroelectric crystals such as tourmaline and Rochelle salt a s well as the group of materials known as the piezoelectric ceramics, which include lead titanate (PbTiO3) and lead zirconate (PbZrO3). These materials are also known as piezoelectric ceramics which are used in ultrasound transducers for biomedical applications.Polyvinylidene difluoride (PVDF) is another transducer material which has demonstrated advantages as a high frequency receiver. Piezoelectric ceramics are sold with the brand name PXE by Philips Company and are solid solutions of lead titanate (PbTiO3), and lead zirconate (PbZrO3) which have been modified by additives which are a group of piezoelectric ceramics known as PZT. PXE materials are hard, chemically inert and unaffected by a humid environment. The crystals in a ferroelectric material of which PXE is made up of align themselves randomly in a number of directions. With such a random orientation of crystals, the material will exhibit no piezoelectric effect. In order to have a piezoelectric material which is capable of being used for ultrasound transducers, the material has to be subjected to a strong electric field at high temperatures. This has the effect of permanently locking the crystals in the direction of the applied electric field and making the crystal piezoelectric in the direction of the electric field. Hence, a piezoelectric ceramic material may be converted into a piezoelectric material in any given direction by applying a strong electric field to the material in the given direction at an elevated temperature. This treatment, which is known as poling, is the final stage in the manufacture of a PXE piezoelectric. Metal electrodes perpendicular to the poling axis are deposited on the material so that an alternating electric field may be applied to generate ultrasound or ultrasound vibrations may be sensed by sensing the electric field across the piezoelectric material. The voltage across a piezoelectric ceramic PXE material is usually directly proportional to the applied stress. The construction of a simple, single element piezoelectric transducer is as shown below. The Construction of a Single Element Piezoelectric Transducer Ultrasound imaging in the A-mode directs a narrow beam of ultrasound into the tissue being scanned and the echo which may be displayed on a CRT screen provides a measure of the distance between reflecting surfaces in the body. In the B-scan mode, the echo signal is brightness modulated which makes it possible for information related to tissue depth to be displayed on the screen in a visually effective manner. An ultrasound transducer array operating in B-mode permits a picture of the tissues within a patient’s body to be displayed on a CRT device. M-mode ultrasound imaging presents tissue movement by scanning an A or B – line on a monitor as a function of time and movements in this line indicate movements in the tissues within the body. In C-mode ultrasound imaging a second transducer is used to detect echoes sent out by the first transducer, presenting a 2-D map of the ultrasound attenuation within tissues. Having discussed the principles of operation of a piezoelectric medical ultrasound transducer, it is now appropriate to consider the practical problems associated with the construction of such transducers. This is done below. The Design of Ultrasound Transducers A transducer which is constructed out of piezoelectric material will have a natural frequency of resonance and it is appropriate that the transducer should be excited with alternating electric field which matches the natural resonant frequency of oscillation of the material. The ultrasound frequencies that are used in medical imaging applications range from 1 MHz to 15 MHz and echocardiography is usually performed at frequencies of 2.5 MHz. Hence, transducers which are used for ultrasound imaging have to be tuned for different frequencies. For a transducer material in which ultrasound waves travel at the speed c, with a resonant frequency f, the thickness of the material is related by the formula f=c/2d. Hence, it is possible to tune various transducers constructed of the same material to different frequencies by adjusting the thickness of the material. The ultrasound transducer can be excited by a continuous wave, a pulsed wave, or a single voltage pulse depending on the requirement s for observing a continuous image, echo ranging or other tissue measurements. The rear face of the piezoelectric crystal material is usually supported by a backing material which is tungsten loaded araldite, so that the vibrations in the piezoelectric material are rapidly damped after the initial excitation. It is important to couple the piezoelectric transducer to the body of a patient so that the incident ultrasound energy can be effectively transmitted into the body tissue that is being scanned. In order to do this, matching layers of suitable acoustic material are used along with a gel which makes it possible for the ultrasound waves to penetrate the tissue more efficiently. As far as possible, the characteristic acoustic impedance of the tissue being scanned is matched with the acoustic impedance of the transducer. The characteristic acoustic impedance of the tissue is defined as: In the formula, c is the speed of ultrasound in human tissue which is about 1540 m/sec with a variation of +/- 6% and   is the tissue density. K is the bulk elastic modulus of the tissue being scanned. The acoustic parameters of an ultrasound transducer include its nominal frequency, the peak frequency which is the highest frequency response measured from the frequency spectrum, the bandwidth of the transducer which is the difference between the highest and the lowest – 6 dB level in the frequency spectrum, the pulse width response time of the transducer, which is the time duration of the time domain envelope which is 20 dB above the rising and decaying cycles of a transducer response, the loop sensitivity for a medium on which a test is performed which is characterised by: Here, Vo is the excitation pulse voltage in volts, while Vx is the received signal voltage from the transducer.   The signal to noise ratio for a biomedical ultrasound transducer is also an important parameter for an ultrasound transducer and this is defined as: In the above expression, Vx is the received signal voltage from the transducer in volts in response to a specified tone burst or pulse and Vn is the noise floor in volts. The signal to noise ratio for an ultrasound transducer is a measure of the noise associated with the transducer, measuring instrument or cables and this is a good measure of how sensitive a transducer is. In addition to the previously mentioned parameters, geometrical parameters for a transducer describe how the acoustic pressure generated by a transducer varies across the axial and cross-sectional fields of a transducer. These variations are illustrated below: Axial Beam Profile for an Ultrasound Transducer Cross – Sectional Beam Profile for an Ultrasound Transducer he detailed construction of an ultrasound transducer for medical applications involving the shaping of the piezoelectric material, matching layers, housing and backing materials etc is presently conducted using computational techniques such as Finite Element Modelling of ultrasound transducers through the use of software packages such as Ultrasim and other commercially available software. In the overall design, efforts have to be made to ensure that the overall design will be optimised so as to deliver a sufficiently high power of ultrasound into the tissue being imaged and as far as possible there is best possible sound impedance matching between the transducer and the scanned tissue. Design of the backing material in an ultrasound transducer is important because this design determines the ring down time of the transducer, which is critical for low noise and optimal axial resolution of the transducer. Trends in Transducer Design for Echocardiography Only the simplest equipment for echocardiography will use a single ultrasound transducer and there is a trend towards design of echocardiography equipment which uses two or even three dimensional arrays of ultrasound transducers to provide superior quality 2 –D or 3-D computer generated pictures of the organ being imaged.   Even the relatively simpler equipment being used these days has two or more ultrasound transducers fitted into the transducer probe. The array of transducers are capable of generating a shaped beam of ultrasound which can be appropriately focused using electronic digital signal processing techniques to provide better images and resolution. Although the relatively simple medical ultrasound scanners cost about  £1000 per piece, reasonably decent transducer assemblies for a decent Philips or Toshiba ultrasound machines can cost  £1500 for the transducer alone. Transducer arrays for two or three dimensional ultrasound imaging equipment can be much more ex pensive because of the large number of transducers that are employed in such imaging equipment.   For better quality ultrasonic imaging to be possible, there is a requirement for enhanced bandwidth transducers, higher frequency transducer arrays and sophisticated digital signal processing circuits. There is also a trend towards transducer miniaturisation which will make intracavitary, intraurethral, or intravascular ultrasound (IVUS) investigation possible. The current imaging frequency range of 1 MHz to 15 MHz is expected to be increased to 20 MHz to 100 MHz and at these frequencies, microsonography devices using miniature ultrasound transducers with higher sensitivities are expected to provide much better and higher resolution images using catheter based transducers which are less then 2mm in diameter and are capable of being placed in veins.   New ultrasound transducer materials are likely to provide transducers which are far more sensitive then those available presently and consume lower power. These transducers can be operated from battery powered portable equipment and th ere are indications in literature that with the availability of such devices, it is likely that the stethoscope will be replaced by miniature ultrasound equipment. New trends in ultrasound transducer construction are also moving towards composite transducer construction in which a composite of two piezoelectric materials is used to design the transducer. Ultrasound transducers are fairly rugged and the piezoelectric material does not loose its properties unless exposed to high temperatures approaching the Curie temperature for the material are reached or there are strong alternating or direct electrical fields opposing the direction of poling for the material. Mechanical stresses imposed on the piezoelectric materials should not exceed the specified limits and although the specified limits vary for different types of materials, mechanical stress in excess of 2.5 MPa may be considered as likely to cause permanent damage. Ultrasound transducers are capable of being designed to operate in liquid mediums and the piezoelectric material does not react with water or gel.   Conclusion Materials with piezoelectric properties such as lead titanate (PbTiO3) and lead zirconate (PbZrO3) lend themselves to being treated by poling to generate as well as detect ultrasound waves when subjected to alternating electric fields or mechanical stresses. Ultrasound transducers can be made out of these materials and these transducers can be designed for specified resonance frequencies for use in medical imaging. The detailed design of such transducers is an exciting and involving undertaking which is capable of being assisted by finite element simulations. Advances in transducer design involving the use of new materials, miniaturisation and the use of arrays of transducers promises to revolutionise medical imaging in the future by providing high resolution 3-D ultrasound images and the field is full of promise for device designers as well as computer engineers of the future. References/ Bibliography Web Sources   Abboud, Najib N et al. â€Å"Finite Element Modelling for Ultrasonic Transducers†. Weidlinger Associates Inc. SPIE Int. Symp. Medical Imaging 1998, San Diego, Feb 21-27, 1998. August 4, 2005. http://www.wai.com/AppliedScience/Software/Pzflex/Papers/pzflex-spie_mi98.pdf Binder, T. â€Å"Three-Dimensional Echocardiography Principles and Promises†. Journal of Clinical and Basic Cardiology 2002; 5 (Issue 2), 149-152. August 4, 2005. http://www.kup.at/kup/pdf/1137.pdf Brandt, Einar. â€Å"Segmentation Techniques for Echocardiographic Image Sequences†. University of Linkopings. 1998. August 4, 2005. http://www.imv.liu.se/klinfys/einar/publications/pdf_open/Ex1934.pdf Bridal, Lori S et al. â€Å"Milestones on the Road to Higher Resolution, Quantitative, and Functional Ultrasonic Imaging†. PROCEEDINGS OF THE IEEE, VOL. 91, NO. 10, OCTOBER 2003. August 6, 2005. http://dei-s1.dei.uminho.pt/outraslic/lebiom/ultra/ultrasonic01232192.pdf Diederichs, Rolf. â€Å"Ultrasound Transducer Library†. Diederichs, Rolf. March, 1998. August 4, 2005. http://www.ndt.net/wshop/wshop_tr/trans_li.htm Eberhard, Brunner. â€Å"Ultrasound System Considerations and their Impact on Front-End Components,† Analog Devices, Inc., 2002. August 4, 2005. http://www.analog.com/library/analogDialogue/archives/36-03/ultrasound/UltrasoundFrontend.pdf Erikson, Kenneth R et al. â€Å"Ultrasound in Medicine – A Review†. IEEE TRANSACTIONS ON SONICS AND ULTRASONICS, VOL. SU-21, NO. 3, JULY 1971. August 4, 2005. http://www.ieee-uffc.org/ultrasonics/teaching/t7430144.pdf Fink, Mathias. â€Å"Time Reversed Acoustics†. Scientific American Inc, 1999. August 4, 2005. http://www4.ncsu.edu/~fouque/fink.pdf G. Fleury, R. Berriet, O. Le Baron, B. Huguenin. â€Å"New piezocomposite transducers for therapeutic ultrasound†. 2nd International Symposium on Therapeutic Ultrasound Seattle 31/07 02/08/02. August 4, 2005. http://www.imasonic.com/Papers/ISTU2Ima.pdf Genadiy V. Leonov,, Vladimir N. Khmelev, Roman V. Barsukov, Sergey N. Tsyganok, Alexey N. Slivin, Andrey V. Shalunov. â€Å"Advancement of Ultrasonic Technologies Efficiency, Development of Ultrasonic Devices for the Manufactures, Medical Institutions and the Agriculture Requirements†. Biysk Technological Institute. 2004. August 4, 2005. http://www.bti.secna.ru/institute_/laboratory/us/downloads/vestnic_e.pdf Goel, Malti. â€Å"Electret sensors, filters and MEMS devices: New challenges in materials research†. Current Science. Volume 85. No. 4. August 25, 2004. August 4, 2005. http://www.ias.ac.in/currsci/aug252003/443.pdf Hazas, Mike and Andy Ward. â€Å"A Novel Broadband Ultrasonic Location System†. University of Cambridge, United Kingdom. 2002. August 4, 2005. http://www.comp.lancs.ac.uk/~hazas/Hazas02_ANovelBULS.pdf Holm, Sverre. â€Å"Ultrasim – A Toolbox for Ultrasound Field Simulation†. University of Oslo. 2000. August 6, 2005. http://heim.ifi.uio.no/~sverre/papers/01_Matlab.pdf Krochak, Paul and Stefan Story. â€Å"Acoustic Densification of Multiphase Stream†. University of British Columbia. June 19, 2005. August 4, 2005. http://www.math.ubc.ca/~FluidLab/people/sstorey/Densificatio_Final_Report.pdf Ladabaum, Igal et al. â€Å"Surface Micro machined Capacitive Ultrasonic Transducer†. ieee transactions on ultrasonics, ferroelectrics, and frequency control, vol. 45, no. 3, may 1998. August 4, 2005. http://piezo.stanford.edu/library/papers/IL1998.pdf Lewin, Peter A. â€Å"Diagnostic Ultrasound: A Glimpse into the Next Decade†. Drexel University. 2004. August 4, 2005. http://www.wma.net/e/publications/pdf/2000/lewin.pdf M. Greenstein, P. Lum, H. Yoshida, M.S. Seyed-Bolorforosh. â€Å"A 2.5 MHz 2D Array with Z-Axis Electrically Conductive Backing†. 2004. August 4, 2005. http://www.hpl.hp.com/techreports/96/HPL-96-89.pdf Measurement Specialties Inc. â€Å"Piezo Film Sensors – Technical Manual†. Measurement Specialties Inc. April 2, 1999. August 4, 2005. http://www.media.mit.edu/resenv/classes/MAS836/Readings/MSI-techman.pdf Michael Greenstein. â€Å"Multilayer Piezoelectric Transducers for Medical Ultrasound Transducers†. Hewlett Packard Laboratories. 2000. August 4, 2005. http://www.hpl.hp.com/techreports/95/HPL-95-79.ps Morgan Electro Ceramics. â€Å"Introduction: Piezoelectric Ceramics†. Morgan Electro Ceramics. May 16, 2001. August 4, 2005. http://www.morganelectroceramics.nl/pdfs/tech.pdf North Dakota State University. â€Å"Imaging Systems†. North Dakota State University. 2004. August 4, 2005. http://venus.ece.ndsu.nodak.edu/~schroeder/Imaging%20Systems.doc Nottingham University. â€Å"Medical Ultrasound†. Nottingham University. 2004. August 4, 2005. http://www.nottingham.ac.uk/physics/ugrad/courses/mod_home/f31ab1/notes/us.doc Petersen R.B. and J. Hutchins. â€Å"The iE33 intelligent echocardiography system†. Philips Ultrasound Medical Systems. 2004. August 4, 2005. http://www.medical.philips.com/main/news/assets/docs/medicamundi/mm_vol48_no3/11_Peterson.pdf Picture IQ.com. â€Å"Ultrasound Equipment†. Picture IQ.com. 2005. August 6, 2005. http://www.pictureiq.com/piq/ph30-63999-Ultrasound.mspx Powis, Raymond. L and G. Wayne Moore. â€Å"The Silent Revolution: Catching up with the Contemporary Composite Transducer†. JDMS 20:395–405 November/December 2004. August 4, 2005. http://www.medphysics.wisc.edu/mp666/powis_moore_contemp_trans.pdf Rainer Stotzka, Helmut Widmann, Tim Muller, Klaus Schlote Holubek, Hartmut Gemmeke, Nicole Ruiter, Georg Gobel. â€Å"Prototype of a new 3D ultrasound computer tomography system: transducer design and data recording†. Forschungszentrum Karlsruhe. 2004. August 4, 2005. http://www.stotzka.de/Publications/stotzka2004.1.pdf RATSIMANDRESY, Leong, P.Mauchamp, D. Dinet, N. Felix, R. Dufait. â€Å"A 3 MHz, Two Dimensional Array Based on Piezocomposite for Medical Imaging†. IEEE Ultrasonics Symposium Proceedings. 2002. August 4, 2005. http://www.vermon.com/Biblio_Vermon/IEEE_3MHz%202D%20Array.pdf Ritter, Timothy et al. â€Å"Single Crystal PZN/PT-Polymer Composites for Ultrasound Transducer Applications†. IEEE transactions on ultrasonics, ferroelectrics, and frequency control, vol. 47, no. 4, July 2000. August 4, 2005. http://www.ieee-uffc.org/archive/public/opapers/jul792.pdf Ronald E McKeighen. â€Å"Design Guidelines for Medical Ultrasonic Arrays†. Acoustic Imaging Transducers Inc. 2000. August 4, 2005. http://www.wai.com/AppliedScience/Software/Pzflex/Papers-other/spie-man.pdf Saleh K. Y. and N.B. Smith. â€Å"Two-dimensional ultrasound phased array design for tissue ablation for treatment of benign prostatic hyperplasia†. Pennsylvania State University. May, 2003. August 4, 2005. http://www.bioe.psu.edu/ultrasound/Research/Saleh%20Smith%20IJH04.pdf Schmidt, M. â€Å"Ultrasonic Signal Processing Chip For Intraluminal Catheter Based Systems†. Fraunhofer Institute of Microelectronic Circuits and Systems. 2004. August 4, 2005. http://www.imec.be/esscirc/papers-96/143.pdf Shindler, Daniel M. â€Å"Hand-held Ultrasound and the Stethoscope†. Robert Wood Johnson Medical School. 2004. August 4, 2005. http://www.bbriefings.com/pdf/950/shindler.pdf Ultran. â€Å"Medical Ultrasonic Transducers†. Ultran. 2004. August 4, 2005. http://www.ultrangroup.com/pdfs/ultran_trans_cat.pdf University of Central London. â€Å"An Overview of Existing Medical Imaging Techniques†. University of Central London. 2004. August 4, 2005. http://www.medphys.ucl.ac.uk/research/borl/homepages/florian/thesis/pdf_files/p35_44.pdf University of Lancaster. â€Å"Medical Ultrasound Imaging†. University of Lancaster. 2004. August 4, 2005. http://www.lancs.ac.uk/depts/physics/teaching/py336/Ultrasound.doc Wang, Haifeng, Tim Ritter, Wenwu Cao, and K. Kirk Shung. â€Å"Passive Materials for High Frequency Ultrasound Transducers†. The Society of Photo optical Instrumentation Engineers, SPIE. 1999. August 6, 2005. http://www.bioe.psu.edu/labs/NIH/pass_mat.pdf Weigang, Beate, G. Wayne Moore, M.A., James Gessert, William H. Phillips, Mark Schafer. â€Å"The Methods and Effects of Transducer Degradation on Image Quality and the Clinical Efficacy of Diagnostic Sonography†. Sonic Technology Laboratories. 2004. August 4, 2005. http://www.4sonora.com/products/Transducer%20Degradation%20on%20Image.pdf Wells, P.N.T. â€Å"Ultrasonic Imaging of the Human Body†. Bristol General Hospital. 1999. August 4, 2005. http://www.hrcc.on.ca/Research/bios/people/pattersonfiles/Wells%20paper.pdf Whitehouse, Kamin. Fred Jiang, Chris Karlof, Alec Woo, David Culler. â€Å"Sensor Field Localisation: A Deployment and Emperical Analysis†. University of California, Berkley. April 9, 2004. August 4, 2005. http://www.cs.berkeley.edu/~kamin/pubs/whitehouse04ultrasoundUCBtechReport.pdf References Related to Ultrasound Transducers from British Libraries . Medical Imaging 1999: Ultrasonic Transducer Engineering: 24-25 February 1999, San Diego, California. Bellingham, Washington: SPIE, 1999. . Medical Ultrasound: Mirror Transducer Systems for High Resolution Imaging. 1984. American Association of Physicists in Medicine. Medical Physics of CT and Ultrasound: Tissue Imaging and Characterization: Summer School: Papers and Discussions. American Institute of Ultrasound in Medicine. Ultrasound Practice Committee Report for Cleaning and Preparing Endocavitary Ultrasound Transducers Between Patients. Laurel, Md.: American Institute of Ultrasound in Medicine, 1995. American Society of Ultrasound Technical Specialists and Society of Diagnostic Medical Sonographers. Medical Ultrasound. New York: Wiley. Barnett, S. B., G. Kossoff, and World Federation for Ultrasound in Medicine and Biology. Safety and Standardisation in Medical Ultrasound: Issues and Recommendations Regarding Thermal Mechanisms for Biological Effects of Ultrasound: Symposium: Papers. Pergamon Press, 1992. British Medical Ultrasound Society. BMUS Bulletin. London: British Medical Ultrasound Society, 2003. Davies, Christopher Mark. The Construction and Design Characteristics of Bimorph Shear Wave Transducers. 1993. Fleming, David G., et al. Indwelling and Implantable Pressure Transducers: Based on Workshop Held in Cleveland, Ohio on December 4 and 5, 1975, Sponsored by the Biotechnology Resources Branch (RR-00857) and the National Institute of General Medical Sciences (GM-14267) of the National Institutes of Health. Cleveland: CRC Press, 1976. Great Britain. Medical Devices Agency. A Comparative Technical Evaluation of Eleven Ultrasound Scanners for Examination of the Breast. Medical Devices Agency, 2001. Kuhn, A., P. A. Payne, and Dias. Design and Construction of Ultrasound Equipment for Characterization of Elastic Mechanic Properties of Dental Restorative Materials. Manchester: UMIST, 1991. Luukkala, Mauri. Second Harmonic Generation of Ultrasound in Quartz Transducers. Turku, 1967. Mok, W. H., M. S. Beck, and Dias. Flow Imaging Using Pulsed Ultrasound Transducers. Manchester: UMIST, 1986. Nakano, Hitoo, et al. XX International Congress The Fetus As a Patient and 6th Ian Donald Inter-University of Medical Ultrasound. 2004. Nicoll, J. J. and University of Edinburgh. Medical Ultrasound: Mirror Transducer Systems for High Resolution Imaging. University of Edinburgh, 1984. Preston, R. C., et al. The Performance of the NPL Ultrasound Beam Calibrator: Part 1 Physiotherapy Transducers. Teddington: National Physical Laboratory, 1986. Ruttenberg, Robert and Simon Peck. Transducer Development for Medical Dynamic Measurements. 2000. Shung, K. Kirk and Society of Photo-optical Instrumentation Engineers. Medical Imaging 1998: Ultrasonic Transducer Engineering: 25-26 February 1998, San Diego, California. Bellingham, Washington: SPIE, 1998. Society of Diagnostic Medical Sonographers. JDMS: Journal of Diagnostic Medical Sonography. Philadelphia: Lippincott for the Society of Diagnostic Medical Sonographers. Society of Ultrasound in Medicine of the Republic of China. Journal of Medical Ultrasound. Taipei. Turnbull, Daniel H. and University of Toronto Department of Medical Biophysics. Two-Dimensional Transducer Arrays fo

Masculinity, Femininity and Simone Benmussa’s Singular Life of Albert N

Masculinity, Femininity and Simone Benmussa’s Singular Life of Albert Nobbs The semiotics of traditional theatrical form reinforce an oppressive patriarchal system. The physical body becomes the catalyst by which gender is assigned and expected. This emphasis on the body is amplified in the theater. Simone Benmussa’s play The Singular Life of Albert Nobbs, adapted from the short story by George Moore, deals with issues of femininity and masculinity and how these are portrayed within the theater as well as how theater is formed by the traditional patriarchal gaze. This play also deals with issues of class and how class status is intrinsically tied to gender, gender performance and sexuality. Through the example of this play it is seen that a form of theater which creates and maintains the woman as subject rather than object (as Sue-Ellen Case proposes) cannot be truly realized until the performative nature and many issues inherent in masculinity are acknowledged and processed. Here also is an excellent case study of how the politics of the theater are deeply rooted in body politics and gender essentialism. All of these factors contribute to the play’s overall complexity in matters surrounding and pertaining to the performative nature of masculinity and the manner in which masculinities are brought forth on stage and how that differs from femininity on stage. One of the central themes of theatrical form is identity and the catalyst by which identity is formed is the body. In using the body as the site of formation of individual identity, women are â€Å"uniquely identified with their anatomy† and specifically the parts of their anatomy that differ from that of men (Callaghan 30). Because women are thus defined by their relation ... ... femininity and female masculinity are brought under scrutiny. Works Cited: Butler, Judith. Gender Trouble. New York, Routledge. 1990 Callaghan, Dympna. Shakespeare Without Women: Representing Gender and Race on the Renaissance Stage. New York, Routledge. 2000 Case, Sue-Ellen. Towards a New Poetics. from Feminism and Theater. New York, Methuen. 1988 Gardiner, Judith Kegan. Introduction. from Masculinity Studies & Feminist Theory. (also ed.) New York, Columbia University Press. 2002 Halberstam, Judith. The Good, The Bad, and the Ugly. from Masculinity Studies & Feminist Theory. ed Judith Kegan Gardiner. New York, Columbia University Press. 2002 Hopkins, Patrick D. Gender Treachery: Homophobia, Masculinity, and Threatened Identities. Kano, Ayako. Acting Like A Woman in Modern Japan: Theater, Gender, and Nationalism. New York, Palgrave. 2001