Cultural Revolution Ignited Essays - Criticism Of Christianity

Cultural Revolution Ignited "A cultural revolution ignited" In the late nineteenth-century and early twentieth-century the country was experiencing a boom time in the economy, but it came at the expense of the average poor immigrant. As long as business men were making a buck they didn't care or who what they exploited in order to do so. Also, there were no limitations on what any industry can and can not do. The United States Government had a laissez-faire policy at the time, and the economy was let be. This proved harmful to the everyday American because they had no protection under the laws in there workplace's. In the novel The Jungle, by Upton Sinclair, he exposes the wrongs of our society at the time by using literary muckraking, to "dig the dirt" of our economic system. Society needed a red flag in order for humanitarians of societies middle and upper classes to take affirmative action against inhumane acts involving the workplace. The Jungle was one of the key factors in the progressive movement because of it's popularity. Also it is a perfect example of muckraking, and even the graphicness of the book told the horrid tale of the meat packing plants of Chicago. It gave such a realistic image of how life was like for most of the population. This novel sparked a great number of political reforms, the meat packing plants were inspected thoroughly and child labor was outlawed in many states and enforced successfully. The reason why action wasn't taken sooner was because the people who controlled the government were of the upper classes of society, even after these atrocities were exposed many politicians were reluctant to take action because business' involved their peers and that is"bad business" as a politician. The majority of the people of greater means were distraught and took any action they could. For example, many civic leaders such as Seth Low of NY challenged the political machine of New York, Tammany Hall. The progressives never went as far as to starting their own political party, mainly because the two existing parties adopted many of the progressives goals. It never really took off on a national level because the national level politicians "knew were their bread was buttered". The feedback this book got indirectly was phenomena it also was a segue to many of the action taken during the Great Depression. Upton Sinclair got his point across ten fold and it basically raked every inch of muck society had to offer. The government officials of the time were almost forced to go along with this movement because unless they wanted to be out of office they had to adopt reformists policies. They had to regulate almost everything which was always never to be tampered with. They were looking at the problems as humanitarian and they still left the economy alone and this proves an very bad mistake in our history. Upton Sinclair changed the way our society thought and acted towards being sensitive towards human needs no matter the social background. Sinclair did it using a real family and real event s and that is what made it social stand against the exploitations of children and adults in the workplace and he lived it so that is what made it a real experience for him and made the writing process much more vivid then it would have been without first hand experience. This set the standard for investigative journalism even though it is work of literature. It also sparked a revolution which had been the most constructive revolution socially in history up to this point and I hope Upton Sinclair received acclaim for his work of literature.

Denounce vs. Renounce

Denounce vs. Renounce Denounce vs. Renounce Denounce vs. Renounce By Mark Nichol What’s the difference between denounce and renounce? Their related Latin ancestors shared a neutral sense, but in English they acquired exclusively condemnatory connotations. Denounce is externally directed one denounces another’s words or deeds while renounce is internally focused one renounces one’s own viewpoints or actions, or is called on to do so. The Latin precursor of denounce, denuntiare, means simply â€Å"to announce† â€Å"to proclaim,† or â€Å"to command,† although in ancient Rome it could also have a negative connotation. Borrowed into English from the Old French verb denoncier, it is invariably accusatory. Denunciate, a more direct descendant of the Latin term, is rare but serves as the basis of the noun form, denunciation. Renounce comes from the Old French term renoncer, in turn derived from the Latin word renuntiare, which is synonymous with denuntiare in the neutral sense, but the English word means â€Å"to abandon a viewpoint or philosophy†; synonyms are forswear and repudiate. The root element of these words, nunt, is related to the Latin word nuntius, meaning â€Å"messenger,† from which was formed the Italian word nuncio, which refers to an envoy of the head of the Roman Catholic Church; it was borrowed into English with this meaning. Two other words formed from this root are announce (the original Latin prefix was ad-, meaning â€Å"to,† as in advertise literally, â€Å"to turn toward† so that it means â€Å"to bring a message†) and pronounce (â€Å"to put an announcement forth†). The latter word’s past-tense verb form, pronounced, also became an adjective meaning â€Å"marked† or â€Å"emphatic.† A variation on announce, more faithful to the original Latin through its association with Catholicism, is annunciate, which is rare, though the equally uncommon annunciation is best known as a proper noun for a church holiday commemorating the angel Gabriel’s announcement to the Virgin Mary that she would bear a child. Want to improve your English in five minutes a day? Get a subscription and start receiving our writing tips and exercises daily! Keep learning! Browse the Misused Words category, check our popular posts, or choose a related post below:100 Mostly Small But Expressive InterjectionsDo you "orient" yourself, or "orientate" yourself?â€Å"Least,† â€Å"Less,† â€Å"More,† and â€Å"Most†

Understanding text as it is meant to be Essay Example | Topics and Well Written Essays - 2000 words

Understanding text as it is meant to be - Essay Example When trying to maneuver through such information, an important issue that arises comes down to a fundamental idea. That is, the question of where exactly the meaning of the subject matter lies within.The written word is one of the most beautiful things ever to be created.Beauty that can differ.In terms of biblical interpretation, a common term to come about in research is that of Hermeneutics. "It is more broadly used contemporary philosophy to denote the study of theories and methods of the interpretation of all texts and systems of meaning.Is it with the author, within the text body, or is it something that actually lies within the reader themselves through their individual understanding and interpretation of what it is they are trying to read and learn about in the first place. The concept of "text" is here extended beyond written documents to any number of objects subject to interpretation, such as experiences. A hermeneutic is also defined as a specific system or method for inte rpretation, or a specific theory of interpretation. However, the contemporary philosopher Hans-Georg Gadamer has said that has said that hermeneutics is an approach rather than a method and, further, that the Hermeneutic circle is the central problem of interpretation," Going on to say that, "Essentially, hermeneutics involves cultivating the ability to understand things from somebody else's point of view, and to appreciate the cultural and social forces that may have influenced their outlook. Hermeneutics is the process of applying this understanding to interpreting the meaning of written texts and symbolic artifacts (such as art or sculpture or architecture), which may be either historic or contemporary," ("Hermeneutics" p.1). Throughout the course of time, history has played an important role in the creation of some of the greatest works of literary art that have survived the ages. "In the last two millennia, the scope of hermeneutics has expanded to include the investigation and interpretation not only of oral, textual and artistic works, but of human behaviour generally, including language and patterns of speech, social institutions, and ritual behaviours (such as religious ceremonies, political rallies, football matches, rock concerts, etc.). Hermeneutics interprets or inquires into the meaning and import of these phenomena, through understanding the point of view and 'inner life' (Dilthey) of an insider, or the first-person perspective of an engaged participant in these phenomena," ("Hermeneutics" p.1). As they set out to create their work, the author uses their understanding of the material to set forth a creation of literary discovery that seeks to aid in furthering greater study on a wide variety of subject matter, whatever the subject may be. In the case of the bible, "In the history of interpretation the rise of the historical-critical method opened a new era. With it, new possibilities for understanding the biblical word in its originality opened up. Just as with all human endeavor, though, so also this method contained hidden dangers along with its positive possibilities. The search for the original can lead to putting the word back into the past completely so that it is no longer taken in its actuality. It can result that only the human dimension of the word appears as real, while the genuine author, God, is removed from the reach of a method which was established for understanding human reality," ("Interpretation" p.1). The source goes on to discuss that, "Accordingly, the text of the document inquires into how the meaning of Scripture might become known-this meaning in which the human word and God's word work together in the singularity of historical events and the eternity of the everlasting Word, which is contemporary in every age. The biblical word comes from a real past. It comes not only from the past, however, but at the same time from the eternity of God and it leads us into God's eternity, but again along the way through time, to which the past,

Understanding the Factors Affecting the Influence of Children on Their Dissertation

Understanding the Factors Affecting the Influence of Children on Their Parents' Total Purchases - Dissertation Example Marketing researches in the past couple of decades have focused on the how the children are involved in the household decision making, in which stages and in which product categories. This study aimed to identify if and how particular demographic characteristics play a role in the influence that children have on their parents’ weekly purchases. The demographic characteristics tested for this study included: (a) socioeconomic status of the parents, (b) parental education level, (c) religion, (d) gender of the child, and (e) age of the child. For this purpose, a quantitative, non-experimental study was designed using hierarchical multiple linear regression and analysis of variance to test hypotheses and answer the research question. A stratified random sample of 343 participants was surveyed and hypotheses were tested. The results showed a relationship between total weekly influenced parental purchases and the demographic characteristics; furthermore, socioeconomic status, paren tal educational levels, gender and age of child all affected the extent of influence that the children had on their parents’ purchases. The findings of this research reveal important insights about children as influencers and active developing decision makers. The results provide direction for further research and analysis in the field that can contribute much to the understanding of buying behaviors and targeted market planning to marketers. Acknowledgments Table of Contents Acknowledgments 3 Acknowledgments 3 List of Tables 8 List of Tables 8 List of Figures 10 List of Figures 10 Chapter 1. Introduction 1 Chapter 1. Introduction 1 Introduction to the Problem 1 Introduction to the Problem 1 Background of the Study 3 Background of the Study 3 Statement of the Problem 5 Statement of the Problem 5 Purpose of the Study 5 Purpose of the Study 5 Research Questions and Hypothesis 6 Research Questions and Hypothesis 6 Nature of the Study 7 Nature of the Study 7 Significance of the Study 8 Significance of the Study 8 Definition of Terms 9 Definition of Terms 9 Assumptions and Limitations 9 Assumptions and Limitations 9 Unit of Analysis 10 Unit of Analysis 10 Organization of the Remainder of the Study 11 Organization of the Remainder of the Study 11 Chapter 2. Literature Review 12 Chapter 2. Literature Review 12 Introduction 12 Introduction 12 Family Dynamics in Purchase Decisions 13 Family Dynamics in Purchase Decisions 13 Organization of the Literature Review 20 Organization of the Literature Review 20 Theoretical Framework 20 Theoretical Framework 20 Children’s Influence in Family Decisions 22 Children’s Influence in Family Decisions 22 Consumer Socialization of Children 23 Consumer Socialization of Children 23 Presentation of Empirical Evidence 26 Presentation of Empirical Evidence 26 Analysis of Findings 32 Analysis of Findings 32 Conclusion 34 Conclusion 34 CHAPTER 3. METHODOLOGY 36 CHAPTER 3. METHODOLOGY 36 Research Design 36 Research Desi gn 36 Design Appropriateness 38 Design Appropriateness 38 Participants 39 Participants 39 Sample Size 39 Sample Size 39 Sampling Procedure 40 Sampling Procedure 40 Research Questions and Hypotheses 41 Research Questions and Hypotheses 41 Instrumentation 42 Instrumentation 42 Pilot Testing and Field Testing 43 Pilot Testing and Field Testing 43 Data Collection 45 Data Collection 45

ART THROUGH THE AGES Essay Example | Topics and Well Written Essays - 500 words

ART THROUGH THE AGES - Essay Example An artisan suitably applies these elements to ensure that intended information is passed to an audience. Gaultier (2012) observes that understanding functions of arts calls for analysis of various forms of art. This paper explores various aspects of arts. In particular, the paper explains my exposure to various forms of arts and relationship between arts and society. As a way of learning importance of forms of arts, I have visited various museums, attended different theatrical demonstrations, and acquired different films and photos. I have also interacted with artisans of specific forms of arts. In other words, I consider my exposure to various forms of arts as comprehensive. By visiting museums, I have learnt various techniques involved in sculpture. All carvings and sculptured products preserved in museums have also enabled me to understand how sculpture is an important mechanism of communication to humans. By sampling objects where filming, painting, and photographic skills are displayed, I have understood how artisans hybridize various elements of arts to effectively pass a message. In addition, listening to different music and attending movies and other theatrical have enabled me to understand functions of visual and performing arts. Visual and performing arts are valuable and interesting than other forms of arts. Gaultier (2012) supports the claim by asserting that visual and performing arts play crucial roles in human life. Components of visual and performing arts include: movies and cinemas, dance, music, and other theatrical demonstrations. According to Pooke & Newall (2007), the forms of arts are effective means of communication because a large audience is reached easily. Unlike sculptural works, which are mostly preserved in museums, visual and performing arts are easily displayed in several public and/or social facilities. Visual and performing arts enables an audience to easily

Single Stage H Biased Amplifier Biology Essay

Single Stage H Biased Amplifier Biology Essay The objective of this laboratory exercise was to design, simulate, build and test a single stage H- biased amplifier to design specifications and requirements. The design specified a voltage gain of 50 be obtained, a lower cut off frequency of 100Hz and maximum symmetrical swing. An NPN 2N3904 transistor was to be used, with a supply voltage of 15volts. A 100kà ¢Ã¢â‚¬Å¾Ã‚ ¦ load resistor was also required in the design. The values for the components involved in the design were first calculated, using logical deductions, and then simulated using the software Multisim. The H- biased amplifier was then built on a solder less bread board. The various values were measured in the laboratory using the appropriate equipment. Analysis of the calculated, simulated and measured values was done. The results were discussed and used to determine whether the specifications were met. This laboratory exercise was an introduction to the design of electronic devices. Valuable knowledge and practical skills were gained in performing this exercise. This knowledge would prove useful in future designs. Contents Table of Figures List of Tables List of Symbols/ Abbreviations A Amperes AC Alternative Coupling Av Voltage Gain BJT Bipolar Junction Transistor Ci Input Capacitor Co Output Capacitor CE Emitter Capacitor (By pass) dB Decibels DC Direct Coupling f Frequency hfe Current Gain hie Emitter Input Impedance Hz Hertz I Current IB Base Current IC Collector Current IE Emitter Current I1 Current through R1 I2 Current through R2 K.V.L Kirchhoffs Voltage Law k- Kilo m milli R Resistance R1 Resistor 1 R2 Resistor 2 RE Emitter Resistor Re Unbypassed Emitter Resistor RE* Recalculated Emitter Resistor RC Collector Resistor RL Load Resistor RTH Thevenins Equivalent Resistance V- Voltage VB Voltage across Base VBE Base Emitter Voltage VCC Supply Voltage VCE Voltage across Collector and Emitter VRC Voltage across Collector Resistor VRE Voltage across Emitter Resistor VTH Thevenins Equivalent Voltage VR1- Voltage across R1 VR2 Voltage across R2 XCE Reactance of CE XCi Reactance of Ci XCo Reactance of Co Zi Input Impedance Zo Output Impedance à ¢Ã¢â‚¬Å¾Ã‚ ¦ Ohms Introduction The following gives a brief description of the Bipolar Junction Transistor (BJT). A Bipolar Junction Transistor is an active semiconductor device formed by joining two P-N junctions whose function is amplification of an electric current. (Seale 2003). The transistor can also be used for the purposes of switching. However, in this exercise, the focus is centered on the application of amplification. A bipolar junction transistor consists of three regions of doped semiconductors. P- type and N- type semiconductor materials are alternatively joined together to form the transistor. This therefore results in 2 PN junctions. The transistor consists of three regions, namely, the emitter, the base and the collector. The diagram below illustrates the basic structure of a transistor, showing the PN junctions and the emitter, base and collector. BJT layers Figure : Transistor Source: http://encyclobeamia.solarbotics.net/articles/bip_junct_trans.html (accessed November 17th 2010 at 5:44pm.) From the diagram it is easily seen that one P-N junction is between the emitter and the base and the other P-N junction is between the collector and the base. Since the emitter and collector are usually doped somewhat differently, they are rarely electrically interchangeable. (Seale 2003). The base also forms the mechanical base for the structure. (Seale 2003). The base region is made as thin as possible (about 10-6m) to get a reasonable good levels of current gain.(Seale 2003). Furthermore, it is made thin for easier passage of electrons through the base region to the collector. Bipolar transistors are either NPN or PNP, based on the arrangement of their N-type and P-type materials. An NPN transistor is formed by sandwiching a very thin region of P-type between two regions of N-type materials. Figure 2 below shows an NPN transistor, while figure 3 shows the symbol used to represent it. NPN layers Figure : NPN Transistor Source: http://encyclobeamia.solarbotics.net/articles/bip_junct_trans.html (accessed November 17th 2010 at 5:44pm.) Figure : NPN Transistor SymbolImage Source: http://encyclobeamia.solarbotics.net/articles/bip_junct_trans.html (accessed November 17th 2010 at 5:44pm.) Similarly, a PNP transistor is formed by sandwiching a very thin region of N-type between two regions of P-type materials. Figure 4 below shows the PNP transistor, while figure 5 shows the symbol used to represent it. Figure : PNP TransistorPNP layers Source: http://encyclobeamia.solarbotics.net/articles/bip_junct_trans.html (accessed November 17th 2010 at 5:44pm.) Figure : PNP Transistor SymbolImage Source: http://encyclobeamia.solarbotics.net/articles/bip_junct_trans.html (accessed November 17th 2010 at 5:44pm.) (It should be noted that the circle around the transistor usually not seen when the transistor is drawn in circuit diagrams.) It is clear that the distinguishing characteristic of the two transistor symbols is the direction of the arrow. A transistor in a circuit will be in one of three conditions: Cut off (no collector current). In this region it can be used as switch. In the active region (some collector current, more than a few tenths of a volt above the emitter. In this region, it can be used for amplifier applications. In saturation (collector a few tenths of a volt above emitter), large current useful for switch on applications.(Nave) The figure below illustrates these regions of operation. http://hyperphysics.phy-astr.gsu.edu/hbase/solids/imgsol/tran6.gif Figure : Regions of Operation of the Transistor Source: http://hyperphysics.phy-astr.gsu.edu/hbase/solids/trans2.html#c4 , accessed November 17th 2010 at 5:40 pm. A NPN transistor was used to in this laboratory exercise to act as an amplifier. The transistor must therefore be in the active region. Background Theory The following describes the reasons for the choice of biasing arrangement and type of configuration. Possible applications of the design project are also included. For transistors to produce amplification, an operating point must first be established. Since a transistor can act as an amplifier in the active region, it is here that the operating point is established. This operating point is fixed, and so it is referred to as a quiescent point (Q point). This is known as biasing. This operating point is the point where the applied signal would be amplified. Therefore it is required that this point be constant. Biasing is the operation of setting an operating point within an operating range and the purpose of bias design is to set the collector current of a transistor to a specific value and keep deviations due to temperature and beta variations to a specified minimum.(Kuhn 2008) Biasing can take two forms, fixed biasing and H biasing. The fixed bias design works with a transistor with an appropriate current gain, beta. Temperature changes results in a change of beta. This results in a variation of Ic and consequently, the Q point changes. Hence, the fixed biased arrangement is thermally unstable. In the H biased design, the Q points are independent of beta and therefore the Q points are more stable. Two resistors form a potential divider and fix the base potential. Since the base potential is kept nearly constant, if Ic changes, an increase potential drop would develop across RE and VBE would decrease. This results in Ic dropping to its original value. This biased arrangement is therefore thermally stable. Due to this thermal stability, the H biased arrangement was chosen in preference to the fixed biased arrangement. Now, though the H biasing arrangement was chosen, the type of configuration was still undecided. Three types of configurations exist. These include the common emitter, common base and common collector. According to Kuhn 2008, in general, the best amplifier to use is the one whose input resistance is comparable to the source resistance and whose output resistance is comparable to the load resistance. Source Resistance/ Load resistance Good Choice of Amplifier to consider Greater than 10 Common Collector 2 -10 Common Collector or Common Emitter 0.5 -2 Common Emitter 0.1 -0.5 Common Emitter or Common Base Less than 0.1 Common Base Table Showing Choice of Amplifier based on Source/Load Resistance Source: http://www.kennethkuhn.com/students/ee351/text/bjt_general_design.pd, accessed 17th November 2010 at 5:17 pm. It can be shown that the common-emitter amplifier is capable of achieving the highest possible power gain. He concludes by saying that, overall, the common-emitter amplifier is the most flexible in terms of input and output resistance while also achieving reasonable power gain. Therefore, the common emitter configuration was chosen. Figure 7 shows this configuration. Figure 7: Common Emitter Configuration Source: Electronic Workbench Software- Multisim Figure 7: Common Emitter ConfigurationQ1 2N3904 Vcc R1 R2 Re RE* Rc RL Co Ci CE This design project would serve as an introduction to the practical application of electronics. With the experience, knowledge and understanding gained in designing and the building the circuit, more advanced and complex circuits could possibly be built. These circuits would then be used in everyday applications, e,g a microphone, speaker or perhaps a new innovation. This simple circuit in itself could be used to amplify signals with the appropriate adjustments. Design Objectives The following shows the specifications required for the design of the amplifier. The specifications involved in the design of the single stage H-biased amplifier were as follows: Voltage gain of 50 Lower cut off frequency less than 100Hz Maximum symmetrical swing Supply voltage of 15volts It was required that a small signal NPN 2N3904 transistor be used in the design. A fixed load resistance of 100kà ¢Ã¢â‚¬Å¾Ã‚ ¦ was also required. Method The following shows the apparatus and materials used in the design project, the operating conditions, how the various resistor and capacitor values were obtained and the basic laboratory procedure. Apparatus and Materials The following shows a list of the apparatus and materials used in overall design and building of the amplifier. 2N3904 NPN Transistor Solder less Bread board Resistors (56à ¢Ã¢â‚¬Å¾Ã‚ ¦, 680à ¢Ã¢â‚¬Å¾Ã‚ ¦, 3.6kà ¢Ã¢â‚¬Å¾Ã‚ ¦, 62kà ¢Ã¢â‚¬Å¾Ã‚ ¦,10kà ¢Ã¢â‚¬Å¾Ã‚ ¦,100kà ¢Ã¢â‚¬Å¾Ã‚ ¦) Capacitors (4.7uF, 47uF ,330uF) Connecting wires Pliers Dual trace Oscilloscope Power Supply Function Generator Multi-meter LRC meter Analysis of Operating Conditions The following gives an analysis of the operating conditions for the circuit. The design of the amplifier consisted of two types of operating conditions. These included the DC conditions and the AC conditions. The DC and AC conditions were not mixed. Therefore each type of operating condition was considered individually. DC Analysis The following describes the operating conditions for the DC analysis. In DC circuits, capacitors act as an open circuit. In an open circuit, no current flows. Therefore the capacitors were omitted when considering the operating conditions for DC. For the transistor to function as an amplifier, the various quiescent currents and voltages associated with it need to be known. Also, the resistor values need to be known. Therefore, some calculations must first be made. The figure below shows the circuit required for DC analysis. Figure : Circuit Required for DC Analysis Figure : Circuit Required for DC AnalysisVcc R2 RE Rc Q1 2N3904 R1 Figure 8: Circuit Required for DC Analysis Source: Electronic Workbench Software Multisim Note that this circuit is similar to figure 7. However, the capacitors were omitted as they are part of the AC analysis. The supply voltage, , was given as 15 volts. Determining Ic The following describes how the value of Ic , was chosen. The transistor datasheet (found in the appendix) was used to choose an appropriate value for. Firstly, the graph of Typical Pulsed Current Gain vs Collector Current, , was used. Since the quiescent points are independent of beta, ÃŽÂ ², (), then the exact value of ÃŽÂ ² becomes irrelevant. Hence, beta can be chosen as any appropriate value. Since the operating temperature for the transistor was room temperature, therefore, the graph at 25 °C was selected. From the graph it was seen that beta was relatively constant at an of 2mA. Due to this constant beta, a selection of 2mA for was made. It was found that beta was approximately 230. It should be noted that a value of 1mA could also have been chosen, based on the same criteria upon which was chosen. To add some justification to the value chosen, the graph of Base- Emitter ON voltage vs Collector Current was also considered. It was known that an approximate value for was 0.68V. Using again the graph at room temperature, (25 °C), the corresponding value for a voltage of 0.68 was 2mA. Since multiple graphs indicated that a value of 2mA would be appropriate, therefore, was chosen to be 2mA. Calculation of The following shows the steps involved in determining the value of. A requirement was maximum symmetrical swing. That is, must be able to increase and decrease by the same value. From the circuit,( figure 8), is in series with the emitter of transistor, and therefore in series with the voltage. Since would cause a voltage drop, , across itself, this would therefore reduce the voltage . This voltage drop across, that is, would therefore limit the symmetrical swing. So, to obtain maximum symmetrical swing, it was desired that be negligible, when compared to the voltage drop across. With a small , then would be large, and hence produce maximum symmetrical swing. Since 10% can be considered negligible in comparison to 90%, it was therefore assumed that was one tenth the supply voltage. That is,= 1/10..[1] Since was given as 15volts, then, = 1/10 (15) = 1.5 volts Ohms law was applied, Then, = à ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦ [2] In the circuit, the current which flows through , was the same current . (It is seen later that à ¢Ã¢â€š ¬Ã‚ ¦.[20]) Therefore, = à ¢Ã¢â€š ¬Ã‚ ¦[3] The formula was rearranged to make the subject, =à ·. Since = 2mA, Therefore,= 1.5Và ·2mA So, = 750à ¢Ã¢â‚¬Å¾Ã‚ ¦ Calculation for The following shows the steps involved in determining the value of. The design for maximum symmetrical swing was considered here. Applying Kirchhoffs Voltage Law (K.V.L) to the circuit: = à ¢Ã¢â€š ¬Ã‚ ¦..[4] Equation [4] was rearranged giving the equation: = So, = -à ¢Ã¢â€š ¬Ã‚ ¦..[5] Recall, for maximum symmetrical swing, that must increase and decrease by the same value. This implies that would therefore be equal to. à ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦[6] Therefore, = -à ¢Ã¢â€š ¬Ã‚ ¦..[7] So, 2=-à ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦[8] Hence, =-) à ·2 à ¢Ã¢â€š ¬Ã‚ ¦.[9] Where =15V and =1.5V Therefore = (15-1.5) à ·2 =13.5 à ·2 = 6.75V Ohms law was applied, = à ¢Ã¢â€š ¬Ã‚ ¦[10] The formula was rearranged to make the subject giving, = à ·, Since = 2mA Therefore, = (6.75V) à · 2mA = 3375à ¢Ã¢â‚¬Å¾Ã‚ ¦ Calculation for values of and The following shows the steps involved in determining the value of and . The circuit in figure 8 was firstly redrawn as shown in figure 9. This was done so that the Thevenins model of the circuit could be easily obtained. Figure 10 shows the Thevenins model for the circuit. Q1 2N3904 Vcc R1 R2 RE Rc Vcc Figure : Redrawn Circuit from Figure 8 Source: Electronic Workbench Software- Multisim Q1 2N3904 Vcc RTH Re Rc VTH Figure 10: Thevenins Model of the Circuit Source: Electronic Workbench Software From figure 9, Thevenins Theorem was applied for the resistance. This gave, = // à ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦[11] = ) à · à ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦.[12] Below shows how an expression for was found. Since was in parallel with, therefore, the voltage across is the same as the voltage across. Voltage Divider Rule was applied to obtain: = à · ]* à ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦.[13] K.V.L was applied to the circuit in figure 10, this resulted in, = ++à ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦.[14] But = +à ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦.[15] So, by substitution of equation [4] into equation [3] gives, = +++à ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦[16] Also, = ÃŽÂ ²Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦[17] Substituting [17] in [16] gives, = ++ (ÃŽÂ ²+ = ++ (1+ÃŽÂ ² = + {1+ÃŽÂ ²)+ à ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦..[18] Rearranging [18] to make the subject of the formula gives, +{1+ÃŽÂ ²)+ = +{1+ÃŽÂ ²) =- Therefore, =- à · +{1+ÃŽÂ ²)à ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦[19] Since hfe is high, to ensure that IB does not cause variations in VB, IB was chosen as one tenth . Also, Recall [15]:= + In transistor designs, the base current, , is made much smaller than the collector current. (recall from introduction). Hence, à ¢Ã¢â€š ¬Ã‚ ¦.[20] Since is therefore significantly smaller than, then, it can be said that is negligible when compared to. Therefore, it was assumed that was one tenth of. So =1/10 à ¢Ã¢â€š ¬Ã‚ ¦[21] Since = 2mA Hence,=1/10 (2mA) So,= 0.2mA Since = I2, then, I2 = 0.2mA When the transistor is on, also known as being forward biased, there is a voltage drop of 0.7 volts across the base-emitter.i.e. = 0.7 volts. K.V.L was applied to the circuit in figure, V2=+à ¢Ã¢â€š ¬Ã‚ ¦[22] Ohms law was used, I2R2= +à ¢Ã¢â€š ¬Ã‚ ¦.[23] The formula was rearranged to make R2 the subject, R2 =+) à · I2 à ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦[24] Since = 1.5V, = 0.7V and I2 = 0.2mA Then, I2R2= (1.5V +0.7V) Therefore, R2 = (1.5V +0.7V) à · 0.2mA R2 = 2.2V à · 0.2 mA Hence, R2 = 11kà ¢Ã¢â‚¬Å¾Ã‚ ¦ The Voltage divider rule was used to find the value of R1 So, VB =(R2 * ) à · (R1 +R2)à ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦[25] The formula was rearranged to make R1 the subject. (R1 +R2) VB = (R2 * ) (R1 +R2) = (R2 * ) à · VB Therefore, R1 = [(R2 * ) à · VB ] R2 à ¢Ã¢â€š ¬Ã‚ ¦..[26] So, R1= [(11kà ¢Ã¢â‚¬Å¾Ã‚ ¦ *15V)à · 2.2V] 11kà ¢Ã¢â‚¬Å¾Ã‚ ¦ R1= [(165000)à · 2.2] 11kà ¢Ã¢â‚¬Å¾Ã‚ ¦ R1= 75000-11000 Therefore, R1 =64000à ¢Ã¢â‚¬Å¾Ã‚ ¦ R1 = 64kà ¢Ã¢â‚¬Å¾Ã‚ ¦ The following table shows the calculated and standard resistor values. The standard resistor values represent the resistors that are available. It is unlikely that stores have a 3.375kà ¢Ã¢â‚¬Å¾Ã‚ ¦ resistor, hence a value close to it (3.6kà ¢Ã¢â‚¬Å¾Ã‚ ¦) would be chosen. Resistor Calculated Value (kà ¢Ã¢â‚¬Å¾Ã‚ ¦) Standard Value(kà ¢Ã¢â‚¬Å¾Ã‚ ¦) RE 0.75 0.75 RC 3.375 3.6 R1 64 62 R2 11 10 Table Showing Calculated and Standard Resistor values Now that R1 and R2 have been calculated, VTH , RTH and IB , can now be calculated. Recall [12] = ) à · à ¢Ã¢â€š ¬Ã‚ ¦[12] Therefore, RTH = (64k*11k) à · (64k+11k) RTH = 9386.667à ¢Ã¢â‚¬Å¾Ã‚ ¦ Recall [13] = à · ]* à ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦[13] Therefore, = [ 11k à ·(11k +64k)]* 15 = 2.2V Therefore, IB can now be found. Recall [19] =- à · +{1+ÃŽÂ ²Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦[19] So, IB = 2.2 -0.7 à · (9386.667 + {1+230}(750) IB = 0.0082mA AC Analysis The following describes the operating conditions for the AC analysis. The AC analysis was done using h-parameters. The figure below shows the circuit used for AC analysis. Q1 2N3904 Vcc R1 R2 Re RE* Rc RL Co Ci CE Figure : Circuit used for AC Analysis Source: Electronic Workbench Software- Multisim The equivalent of this circuit is shown below. Figure 12: Equivalent Circuit Source: Electronic Workbench Software-Multisim Figure : Equivalent Circuit hfeIB R1 hie R2 Re Rc RL K.V.L was applied and the result was obtained. (Re and RE* were taken as a single resistor, RE) So, Vin= hie IBà ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦.[27] And Vo= hfeIB(Rc//RL)à ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦[28] Since voltage gain is given by, Av = à ¢Ã¢â€š ¬Ã‚ ¦.[29] Therefore, Av = -hfeIB(Rc//RL) à · hie IBà ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦.[30] Hence, Av =- hfe(Rc//RL) à · hieà ¢Ã¢â€š ¬Ã‚ ¦..[31] The value for Av was therefore found. In the transistor data sheet, using the graph of Input Impedance, it was seen that at a collector current, of 2mA, that the corresponding hie value was 2kà ¢Ã¢â‚¬Å¾Ã‚ ¦. The graph of Typical Pulsed Current Gain vs , hfe was 230. Av = 230( 3375//100000) à · 2000 Av = -230 ( 3265) à · 2000 Av = -(750950) à · 2000 Therefore, Av = 375.475 However, the design specified a voltage gain of 50. Since 375.475 is greater than 50, the resistor RE was split into two smaller resistors, Re and RE*. The resistor RE* was bypassed with a capacitor. (Page 28 shows theoretically how the introduction of the bypass capacitor reduces the gain of the amplifier.) Calculation of Re and RE* The following shows the method in which Re and RE* were determined K.V.L was applied to the circuit in figure 12. At the input, Vin = IBhie + (IB +hfeIB) Reà ¢Ã¢â€š ¬Ã‚ ¦[32] Vin = IB (hie + (1 +hfe) Re )à ¢Ã¢â€š ¬Ã‚ ¦[33] At the output, Vo = -IBhfe (Rc //RL)à ¢Ã¢â€š ¬Ã‚ ¦..[34] Therefore, voltage gain, Av = Voà · Vinà ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦ [29] Av = -IBhfe(Rc //RL) à · [IB(hie + (1 +hfe) Re )]à ¢Ã¢â€š ¬Ã‚ ¦[35] [35] Simplified was to, Av = hfe(Rc //RL) à · [(hie + (1 +hfe) Re )]à ¢Ã¢â€š ¬Ã‚ ¦..[36] The formula,[36] was rearranged to make Re the subject. So, [(hie + (1 +hfe) Re )] = hfe(Rc //RL) à · Av [(1 +hfe) Re ] = [ hfe(Rc //RL) à · Av ] hie Therefore , Re = {[ hfe(Rc //RL) à · Av ] hie }à · (1+ hfe )à ¢Ã¢â€š ¬Ã‚ ¦[37] The appropriate values were substituted into the equation and the value of Re was determined. Since the desired gain is 50, hence, Av is substituted as 50. Re = {[ 230(3375 //100) à · -50 ] 2000 }à · (1+ 230) Re = {[ 230(3265) à · -50 ] 2000 }à · ( 231) Re = {[ 15019 ] 2000 }à · ( 231) Re = {13019}à · ( 231) Re = 56.359 Therefore, Re = 56à ¢Ã¢â‚¬Å¾Ã‚ ¦ Since RE = Re + RE*à ¢Ã¢â€š ¬Ã‚ ¦..[38] Then , 750 = 56 + RE* Therefore, RE* = 694à ¢Ã¢â‚¬Å¾Ã‚ ¦ The following table shows the calculated and standard resistor values for Re and RE*. The standard values represent the values of resistors that were available. Resistor Calculated value (kà ¢Ã¢â‚¬Å¾Ã‚ ¦) Standard value (kà ¢Ã¢â‚¬Å¾Ã‚ ¦) Re 0.056359 0.056 RE* 0.694 0.680 Table Showing Calculated standard resistor value Calculation for Capacitor values, Ci ,Co and CE The following shows the steps involved in the calculations of Ci , CO and CE. Ci and CO act as decoupling capacitors in the circuit. The power supply decoupling capacitors filter undesired electronic signals which have been coupled onto the power supply voltage. (Kelly and Emad 1998). Essentially, what this means is that the decoupling capacitors block the DC voltage while permitting the AC to flow. This prevents the DC signal from affecting the bias. Also, it blocks the DC from reaching the AC input source. The main function of the bypass capacitor was to reduce the gain of the amplifier to the desired value. Without the bypass capacitor, the gain of the amplifier was given by, Av =- hfe(Rc//RL) à · hieà ¢Ã¢â€š ¬Ã‚ ¦..[31] With the introduction of the bypass capacitor, the gain was now denoted by, Av = hfe(Rc //RL) à · [(hie + (1 +hfe) Re )]à ¢Ã¢â€š ¬Ã‚ ¦[36] From these two equations, since the numerator is the same, and the denominator is larger in [36], hence, the value of Av would be smaller. Therefore, the gain would be reduced with the introduction of the bypass capacitor. Also, the bypass capacitor is to filter out noise at high frequencies. Basically, as the frequency of a signal increases and the pulse width decreases, the impedance of the capacitor decreases and the bypass capacitor acts as a short circuit to these high frequency charges. The dissipation of high frequency charge is related to the value of the capacitor and the subsequent series resistance associated with it. (Wenzel et al.1997.) Firstly, when a particular capacitor was being analyzed, (to be calculated), the other two capacitors were considered as short circuits. This was done so that the effect of the individual capacitor on the circuit could be analyzed. Capacitors act as short circuits, allowing current to flow through them and bypassing the component. The reactance of a capacitor, Xc, is given by, Xc =1à · (2à Ã¢â€š ¬fC)à ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦.à ¢Ã¢â€š ¬Ã‚ ¦[39] where f is the frequency. There would be a voltage drop across the capacitor. With respect to the capacitor at the input, this voltage drop across the capacitor would therefore limit the voltage across the resistors R1 and R2 .Hence , reduce the voltage being sent to the input of the amplifier to be amplified. It is desired that the maximum voltage possible, be sent to the input to be amplified. Since this voltage drop across the capacitor limits the voltage being sent to the input, it is therefore desired that the voltage drop across the capacitor be negligible in comparison to the input impedance of the circuit. Hence, the reactance of the capacitor was assumed to be one tenth of the input impedance, Zi. So, for capacitor Ci, , Reactance Xci = 1/10 Zià ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦[40] In figure 12 , the input impedance Zi is given by, Zi = R1 //R2//hieà ¢Ã¢â€š ¬Ã‚ ¦..[41] In the transistor data sheet, using the graph of Input Impedance, it was seen that at a collector current, of 2mA, that the corresponding hie value was 2kà ¢Ã¢â‚¬Å¾Ã‚ ¦. Therefore, Zi = 64kà ¢Ã¢â‚¬Å¾Ã‚ ¦//11kà ¢Ã¢â‚¬Å¾Ã‚ ¦//2kà ¢Ã¢â‚¬Å¾Ã‚ ¦ Zi =9.387kà ¢Ã¢â‚¬Å¾Ã‚ ¦//2kà ¢Ã¢â‚¬Å¾Ã‚ ¦ So, Zi = 1.649kà ¢Ã¢â‚¬Å¾Ã‚ ¦ Now, Xci = 1/10 Zi Hence, Xci = 1/10(1.649kà ¢Ã¢â‚¬Å¾Ã‚ ¦) So, Xci = 164.9à ¢Ã¢â‚¬Å¾Ã‚ ¦ Recall [39], Xc =1à · (2à Ã¢â€š ¬fC) Therefore, Xci =1à · (2à Ã¢â€š ¬fCi) The formula was rearranged to make Ci the subject. 2à Ã¢â€š ¬fCi =1à · Xci Therefore, Ci = 1à · (Xci *2à Ã¢â€š ¬f)à ¢Ã¢â€š ¬Ã‚ ¦.[41] Since f represents the lower cut off frequency, which was given as 100Hz. Hence the value for Ci was found. C i= 1à · (Xci *2à Ã¢â€š ¬f) Ci = 1à · (164.9 *2à Ã¢â€š ¬{100}) Ci = 1à · (103609.726) Ci = 0.00000965F So, Ci = 9.65uF A similar method was used to find CO. The reactance of the capacitor was considered negligible in comparison the output impedance. This was done so that there would be a minimal voltage drop across the capacitor and the maximum output voltage dropped across the load resistor, RL. So, XCO = 1/10 ZO, (similar to [40] ) Where ZO= (RC//RL) Then, ZO= (3.375kà ¢Ã¢â‚¬Å¾Ã‚ ¦//100kà ¢Ã¢â‚¬Å¾Ã‚ ¦) So ZO= 3.265kà ¢Ã¢â‚¬Å¾Ã‚ ¦ Since XCO = 1/10 ZO Then, XCO = 1/10(3.265kà ¢Ã¢â‚¬Å¾Ã‚ ¦ XCO =326.5à ¢Ã¢â‚¬Å¾Ã‚ ¦ Now, XCO =1à ·(2à Ã¢â€š ¬fCO) The formula was rearranged to make CO the subject. The result was as follows. CO = 1à · (XCO *2à Ã¢â€š ¬f) Therefore CO =1à ·(326.5 *2à Ã¢â€š ¬*100) CO = 4.87uF Similarly, for CE. The reactance of the capacitor was considered negligible in comparison the output impedance. This was done so that there would be a minimal voltage drop across the capacitor and the maximum output voltage dropped across the resistor, Re. XCE = 1/10 Re XCE = 1/10 (56) XCE = 5.6à ¢Ã¢â‚¬Å¾Ã‚ ¦ Since , XCE = 1à · (2à Ã¢â€š ¬fCE) The formula was rearranged to make CE the subject. The result was as follows. CE= 1à · (XCE*2à Ã¢â€š ¬f) CE = 1à · (5.6*2à Ã¢â€š ¬*100) CE = 284uF The following table shows the calculated, standard and the chosen capacitor values for Ci ,Co and Ce . Capacitor Calculated Value (uF) Standard Capacitor Value(uF) Capacitor value chosen (uF) Ci 9.65 10 ,47 47 Co 4.87 4.7 4.7 Ce 284 330 330 Table Showing Calculated and Standard Capacitor values The standard capacitor values represent the capacitor values that were available in stores. It is generally rare to find a capacitor value of exactly 4.87uF, hence a value of 4.7uF was chosen. The value of Ci was chosen to be 47uF instead of 10uf to ensure that the frequency was not exceeded. From the equation, C i= 1à · (Xci *2à Ã¢â€š ¬f), it was noticed that if that capacitor value was increased, the frequency would decrea

Speech Recognition Software :: Essays Papers

Speech Recognition Software Wouldn't it be nice to talk normally to our computers, just as we've seen the characters in "Star Trek" do? Of course, the computers in "Star Trek" understand what you're saying, and that's still a long way off. Tecnology has been advancing at astonishing rates, developing new software for a better interaction computer – human. For example Dragon Systems' NaturallySpeaking is the first continuous-speech voice-recognition program designed for general dictation Until now, most voice-recognition programs supported discrete speech. Examples include Dragon Dictate, Kurzweil Voice, and IBM's Simply Speaking and VoiceType. These work well in special circumstances. But. You. Have. To. Speak. Like. This. Good enough IBM's soon-to-be-released Via Voice different is that they offer large-vocabulary, continuous-speech recognition. Their promise is that you can speak normally and the program will understand what you say. These programs are designed to replace dictation machines and give you hands-free typing. Seeing this In NaturallySpeaking, the app writes the words you speak, and you can save what you've spoken as an .RTF file or copy the material to the Clipboard and an application. You can even edit your text within that application by speaking specific phrases. Saying phrases like "select word" or "spell that" is cumbersome and more time-consuming than editing by hand, but it does allow hands-free use of the program. Ideally, it could be combined with a speech-synthesis program that would verbally prompt you for information. But the real breakthroughs are farther off, when the programs can better differentiate the context of what you are saying. Even then, that doesn't mean the computer will understand what you mean. That's just science fiction. But having it recognize words as you speak them is a big step forward. Dragon has added some new dictation and editing capabilities not found in its previous product, DragonDictate. You can spell words by saying the letters instead of using the alpha-bravo alphabet. Voice macros enable you to add long phrases to documents by speaking shorter ones. To aid postdictation editing, its new select-and-say feature highlights a word or phrase anywhere in the document if you say, "Select [word or phrase]." Typically, you'll have to edit your document after you dictate it; if you wish to edit your file orally, you have to learn the appropriate voice commands. Once you have installed the software it is important that you go through the speech training consisting on two parts. The first part, an informative dictation trainer, stepped me through both a basic and dictation training session.

It is only Physical Abuse if you set out to hurt Your Child Essay

The issue of child abuse is characterized by many contentions and therefore it is a subject of discussion. For instance, some people argues that a physical action will not be abusive if it was not intended to hurt the child while on the other hand, the Centers for Disease Control and Prevention in the United States defines child abuse as any action that can hurt or result to hurting of a child whether intentional or not. In this paper, I argue against the statement that it is only physical abuse if you set out to hurt your child. I therefore give reasons as to why I disregard the statement as wrong and misleading. Physical actions against a child involves but not limited to hitting kicking and slapping. Psychologists have proved that taking these actions against children teaches them how to do the same to others. Available research information shows a direct link between physical actions to children and their violent behavior at later stages of growth (Wolfe, 1999). It is quit reasonable to say that children build their character from their parents. It is therefore apparent that by hitting children for example, parents teach them how to hit and can grow up to be criminals. That physical action whether intended to hurt or not have negative effects to the life of the child and hence it is abusive. Physical punishments for instance may not necessarily amount to physical injuries but can be and indeed they are very destructive to the emotional life of the child (UNICEF, 2000). This amounts to frustrations and anger which cannot be safely and effectively expressed but remains subconsciously stored inside. The child then grows with disclosed anger which at late stages can be released inform of violence. Emotional destruction, if it is not attended, can result to stress and later depression which has other psychological and health effects. True to the authors stand, this is not a desirable situation especially when it is brought about by our irresponsibility, ignorance and illogical beliefs on physical actions against our children. Available psychological research results show that it is a subconscious need of human beings to be in love and stay in harmony with their offspring. It is therefore illogical and unreasonable for parents or any other person to expect to be loved by children who they have hurt whether intentionally or not (MedlinePlus, 2010). Physical actions on children can robe the members of the society the true spirit of love and cooperation from their children which they all desire. In addition to this, it must be appreciated that even if the intended purpose of the action is achieved, it will be based on fear and lack of alternative to the child and hence the child will grow to resist in a manner to suggest that he or she was revenging. Physical punishment for this matter is therefore abusive to the kinds because it cultivates unethical behavior of revenge to children (Baskerville, 2006). Psychologists also warn that by hitting a child, you instill the message that hurting people is permissible as long as you are older and stronger than them (Wolfe, 1999). The child then grows with that attitude of mistreating and hurting the young ones. This is unethical behavior and it is very annoying especially when it is as result of our mistakes In conclusion therefore, any physical action that can hurt a child is abusive whether it is intentional or not.

The Guilded Age essays

The Guilded Age essays The Gilded Age brought about many reforms in many ways affecting basically all ways of life of the people in America. The churches started their change with the physical appearance of the churches. The church house went from a homely little building to an extravagant building representing the wealth and prestige of its members. This caused many disagreements in the parish of these organizations. Many people felt that the church, by its stained glass windows and decorated halls, was emphasizing materialism; that god rewarded the righteous with money. Also at the time other religions began to gain new ground and popularity, mostly among and due to the immigrants. Roman Catholicism and Judaism emerged as predominant faiths. By the end of the 17th century the Roman Catholics had nearly nine million people in their churches. The Salvation Army emerged in the 1880s when they came here from England. These soldiers with out arms were possibly the most effective, giving their free soup and s helter to those in need and spreading the thoughts of kindness and sharing amongst the world. Another new church that came about was the Church of Christ, Science, established by Mary Baker Eddy in 1879. This church took a different view, based on the healing power of Christianity instead of modern medicine. The YMCA and YWCA grew tremendously in the post civil war era, with the Ys sprouting up in every place with a large enough population to support it. With so many leaps and bounds in the field of religion, one can only expect that something would be discovered. Enter Darwin and all the chaos and bickering his ideas cause. In 1859 he published his highly controversial volume On the Origin of Species which explained his theory on how human beings evolved from lesser life forms into what they are today, quickly becoming known as the survival of the fittest. This theory also specifically contradicted the ideals which were set by...

Learn About the History of Hyperbaric Chambers

Learn About the History of Hyperbaric Chambers Hyperbaric chambers are used for a mode of hyperbaric oxygen therapy in which the patient breathes 100 percent oxygen at pressures greater than normal atmospheric (sea level) pressure. Hyperbaric Chambers and Hyperbaric Oxygen Therapy In Use for Centuries   Hyperbaric chambers and hyperbaric oxygen therapy have been in use for centuries, as early as 1662. However, hyperbaric oxygen therapy has been used clinically since the mid-1800s. HBO was tested and developed by the  U.S. Military  after World War I. It has been used safely since the 1930s to help treat deep sea divers with decompression sickness. Clinical trials in the 1950s uncovered a number of beneficial mechanisms from exposure to hyperbaric oxygen chambers. These experiments were the forerunners of contemporary applications of HBO in the clinical setting. In 1967, the Undersea and Hyperbaric Medical Society (UHMS) was founded to foster the exchange of data on the physiology and medicine of commercial and military diving. The Hyperbaric Oxygen Committee was developed by the UHMS in 1976 to oversee the ethical practice of hyperbaric medicine. Oxygen Treatments   Oxygen was discovered independently by the Swedish apothecary Karl W. Scheele in 1772, and by the English amateur chemist  Joseph Priestley  (1733-1804) in August 1774. In 1783, the French physician Caillens was the first doctor reported to have used oxygen therapy as a remedy. In 1798, the Pneumatic Institution for inhalation gas therapy was founded by Thomas Beddoes (1760-1808), a physician-philosopher, in Bristol, England. He employed Humphrey Davy (1778-1829), a brilliant young scientist as superintendent of the Institute, and the engineer  James Watt  (1736-1819), to help manufacture the gases. The institute was an outgrowth of the new knowledge about gases (such as oxygen and nitrous oxide) and their manufacture. However, therapy was based on Beddoes generally incorrect assumptions about disease; for example, Beddoes assumed that some diseases would naturally respond to a higher or lower oxygen concentration. As might be expected, the treatments offered no real clinical benefit, and the Institute succumbed in 1802. How Hyperbaric Oxygen Therapy Works Hyperbaric oxygen therapy involves breathing pure oxygen in a pressurized room or tube. Hyperbaric oxygen therapy has long been used to treat decompression sickness, a hazard of scuba diving. Other conditions treated with hyperbaric oxygen therapy include serious infections, bubbles of air in your blood vessels, and wounds that wont heal as a result of diabetes or radiation injury. In a hyperbaric oxygen therapy chamber, the air pressure is increased to three times higher than normal air pressure. When this happens, your lungs can gather more oxygen than would be possible breathing pure oxygen at normal air pressure. Your blood then carries this oxygen throughout your body which helps fight bacteria and stimulate the release of substances called growth factors and stem cells, which promote healing. Your bodys tissues need an adequate supply of oxygen to function. When tissue is injured, it requires even more oxygen to survive. Hyperbaric oxygen therapy increases the amount of oxygen your blood can carry. An increase in blood oxygen temporarily restores normal levels of blood gases and tissue function to promote healing and fight infection.

Sociology and Social Constructs Essay Example | Topics and Well Written Essays - 1000 words

Sociology and Social Constructs - Essay Example Social construct exists because people agree to behave as if it exists, or concur as if to comply with certain conventional rules, or behave as if such accord or rules came into being (Social Constructs 2007). One social construct is individualism. It places the individual as the center of the social structures. For Hofstede, individualism "pertains to societies wherein the ties between individuals are loose, where everyone is expected to look after himself or herself and his or her immediate family (as cited by Allik and Realo.). As opposed to collectivism, which holds that the group (e.g. the nation, the community, the race, etc. is the primary unit of "reality and the ultimate standard of value," individualism points the individual as the principal unit of reality. His individual person, and not a certain group where he belongs in, is its main focus. For Tocqueville, selfishness is "a passionate and exaggerated love of self, leading a man to connect everything with himself and to prefer himself to everything in the world." On the other hand, his concept of individualism is "a mature and calm feeling, which disposes each member of the community to sever himself from the mass of his fellows and to draw apart with his family and his friends, so that after he has thus formed a little circle of his own, he willingly leaves society at large to itself (Democracy in America 1835)." Based from his definition selfishness concerns more on the emotional craving to love one's self, while individualism is more a mature feeling that makes a member of a society to choose it. Another common misconception is individualism's relation with isolation. Isolation means being alone and being outside of the social sphere. Individualism is a sociological concept that puts the individual at the pedestal. It makes individuals as the unit by which a society's achievement is measured. The common misconception about individualism is that the individual is emphasized and it disregards other members in the society. While it is true that individuals are given emphasis on this social construct, individualism only empowers the members of the society to freely choose what they prefer doing. This social construct should be viewed from the perspective of society wherein individuals are given the freedom to choose what they want in life. Individuals are responsible for himself and society's role is very minimal (Individualism 2007). Individualism and Collectivism After clarifying individualism from the common misconceptions about it, let us further illuminate this confusing term by differentiating it from its contradictory term - collectivism. As mentioned above, individualism puts individual members of the group as the unit by which the success or achievement of a group is based on. Collectivism, on the other hand views a social group as the basis. When an individualist, for example, comments on a crime the fault solely rests in the hands of the individual. The social group wherein he is part of is minimal. This makes individuals responsible for their actions. Collectivism stresses that the society is

Law of express trust Case Study Example | Topics and Well Written Essays - 1000 words

Law of express trust - Case Study Example It may be either a person or a legal entity; iv) Beneficiary, i.e. the person for whose benefit the trust was created. v) Purpose of the trust, i.e. the trust must have a purpose, which is legally valid. Express Trusts are further broadly classified into i) Living Trust: It is also known as inter vivos trust is made for the advantage of another during the lifetime of settlor. ii) Testamentary trusts: These are created by the will of the settlor. That means, the settlor's property will be converted into trust property only after his death. iii) Revocable Trusts: It is a trust where the setlor has full control over the trust property, and he can change or annul the trust at any time. This is a trust, which is at the whims and fancy of the settlor. iv) Irrevocable Trusts: As the name implies, this is a trust, which cannot be revocable except the consent of the beneficiaries, and trustees. Moreover, the trust does not fizzle out once the purpose of the trust is fulfilled. v) Fixed Trusts: These are those trusts where the trust property will be shared by the beneficiaries as per the calendar fixed by the settlor. In distributing the property, the trustee has no discretion to play. Gartsi de v IRC [1968] AC 553 the Inland Revenue argued that as each beneficiary might be entitled to income from the trust fund, they should each be charged as if they were entitled to the whole of the fund. vi) Discretionary Trusts: They are those trusts where the trustee has absolute power in management, administration and distribution and allocating the shares of the trust property to beneficiaries. This trust offers many tax benefits to the beneficiaries, as no interest is created to them until the property is distributed. Rights of beneficiaries: Under a discretioanry trust, the rights of individual beneficiaries are not clear. In Re Smith [1928] Ch 915 it was held that the trustees had to draw up a "complete list" of beneficiaries, but this principle is changed in McPhail v Doulton [1971] A.C. 424, 451, in case of family trust. Court's Jurisdiction: Schmidt v Rosewood Trust Ltd [2003] UKPC 26, [2003] 3 All ER 76: In this case the court held that 1) The court has inherent jurisdiction to supervise and even intervene in the administration of a trust if necessary. And there is no exception even in discretionary trust. 2) This inherent jurisdiction is the fundamental of law of trust. 3) The right to seek the court's intervention did not depend on entitlement to a fixed and transmissible interest. 3) The court has the discretion to intervene to maintain the balance between the competing interest of beneficiaries, the trustees and the third parties. Gartside v IRC [1968] 1 All ER 121 at 134.Re Manisty's Settlement [1973] 2 All ER 1203 at 1211-1212, Mettoy Pension Trustees Ltd v Evans [1991] 2 All ER 513 at 549. Questions: 1. Transactions made by the trustees in the course of management of trust property: The trustees made the following three transactions: 1. Sale Vintage care for 15,000 during the last year to Crowther's son, 2. Payment of legal management fee of 25,000 to the solicitors firm in which the trustees are partners. 3. Decided to invest from existing deposits in to a) partly