Deficiency Disease Essay Example for Free

Deficiency Disease Essay Diseases that are caused by lack of some particular nutrient in a persons diet are called Deficiency Diseases. Following are some of those diseases, their cause and their treatment: 1. Night-blindness: A child having this disease is unable to see properly in the dark. His eyes become dull and listless and the skin becomes dry. If not treated in time, the child may become blind. Cause: This disease is caused due to the deficiency of vitamin A in the diet. Treatment: A child suffering from night-blindness should take a diet rich in vitamin A. Carrots, fish, fruits, milk, butter, etc., are all good sources of vitamin A. 2. Beri-beri: This is basically a disorder of the nerves. It affects the health of eyes % and skin, growth of the body, formation of muscles and blood. There may also to be stomach and intestinal disturbances. Cause: This disease is caused due to the deficiency of vitamin-B. Treatment: The affected child must eat the foods rich in vitamin B like milk, fish, meat, cereals, egg, etc., and also seek medical advice from a doctor. 3. Scurvy: People suffering from scurvy have swollen and bleeding gums. They lose weight and become weak. Their teeth start shaking and become loose. Cause: This disease is caused due to the deficiency of vitamin-C. Treatment: Oranges, citrus fruits, cabbage, amla, etc., should be included in the diet of the patient. 4. Rickets: In this disease, the bones of the legs become thin, deformed and curved (bow-legged). The bones of the child become weak and soft. Cause: This disease is caused due to the deficiency of vitamin D. Treatment: The affected child must eat the foods rich in vitamin D like milk, fish, meat, butter, egg, etc., and take the advice of a doctor. 5. Anaemia: In this disease, the level of the haemoglobin becomes low gets tired very easily and feels weak. The skin becomes pale. The lips and nails become dull and colourless. Cause: This disease is caused due to the deficiency of iron. Treatment: The person should have plenty of green, leafy vegetables like spinach and cabbage. Meat, apples, beans, dry fruits, etc., should be included in the diet. A doctor must also be consulted immediately. 6. Goitre: In this disease, there is swelling around the neck region of a person. Cause: This disease is caused due to the deficiency of iodine. Treatment: The affected person needs to add iodised salt to his or her food. Prevention: A high standard of nutrition must, however, be aimed at and carefully maintained to ensure complete freedom from these preventable causes of ill-health.

Emotional Intelligence And Healthcare Leadership

Emotional Intelligence And Healthcare Leadership Development of emotional intelligence in healthcare has been slower to progress than in other industries. This paper defines emotional intelligence and describes benefits related to developing the attributes of emotional intelligence. It explores physician, clinical, ancillary, and administrative use cases documenting the benefits of implementing emotional intelligence awareness. In addition, it describes how emotional intelligence can positively impact healthcare executives in leading their organizations to retain talent, improve patient satisfaction and clinical outcomes. Emotional Intelligence Healthcare Leadership A lot of research has been conducted on the topic of emotional intelligence. Emotional intelligence is the capacity for effectively recognizing and managing our own emotions and those of others (Pharmaceutical Information, 2007). The Harvard Business Review (HBR) released a number of articles which examine emotional intelligence. As described in the HBR article What Makes a Leader there are five key components to emotional intelligence including knowing ones emotions (Self-Awareness), managing ones emotions (Self-Regulation), motivating self (Motivation), recognizing the emotions of others on the team (Empathy), and developing / handling relationships (Social Skills), (Goldman 2004). Publication of emotional intelligence research started in 1990 and since that time companies have been working to integrate emotional intelligence into their employee selection processes (Freedman 2010). This work started in non-healthcare related industries and is increasingly stressed in healthcare beh avioral development today. In an article by the journal BMC Medical Education, Emotional Intelligence is the set of abilities (verbal and nonverbal) that enable a person to generate, recognize, express, understand, and evaluate their own, and others, emotions in order to guide thinking and action that successfully cope with environmental demands and pressures(Birks, Mckendree, Watt 2009). Are emotional intelligence attributes just a performance metric fad utilized by senior leadership to stimulate change within the organization? Or does it lead to enhanced effectiveness of healthcare executives and the organizations they lead? One of the reasons emotional intelligence is critical to success is that it is effective in handling stress. Healthcare is a multifaceted, evolving and stressful environment. Managing the stress of change management in healthcare is a skill that healthcare leaders must acknowledge. A study was performed at a large urban hospital with professional midwives and obstetricians. It found that emotional intelligence is predictive of performance 66 percent of the time, of stress up to 24 percent and of stress management 6.5 percent of the time. This study found in examining senior leadership in relation to the focus group that emotional intelligence made the biggest difference in the supervisory and leadership roles (Freeman 2010). This provides indication that emotional intelligence actually is more important to recognize as one is in transition to higher management and leadership levels. Another study performed indicated that emotional intelligence can actually be improved throughout life. The study focused on supporting staff of a large healthcare center. It utilized an emotional intelligence test focusing on emotional sensitivity, maturity, and competence. This study measured the ability to respond to interpretation of human expressions with empathy and scored competency of self-control against age / maturity. Findings revealed that maturity of emotional regulation tends to be after the age of forty and that emotional sensitivity grows with experience (ie. age) as well. The study also found a significant difference in the perception of emotion intelligence between gender showing that both men and women have equal ability to increase emotional intelligence but that women tended to be stronger than men as it relates to empathy and self-regulation (Freeman 2010). This provides evidence that emotional intelligence is learned with experiences. Therefore healthcare leade rs can influence supporting staffs development of emotional intelligence in handling operational stress management. It is important to ensure the development concentrates on the right part of the brain to achieve successful results. Emotional intelligence training must focus on the limbic system which requires motivation, extended practice and feedback on behalf of the student to advance capabilities (Goleman 2004). Healthcare leaders need to recognize the importance of emotional intelligence competency in order to make it a part of their organizations culture. There are a number of case examples showing that healthcare executives believe that their own development of emotional intelligence is imperative to successful implementation of initiatives for their organization. For example in the Journal of General Internal Medicine, the Cleveland Clinic Lerner College of Medicine designed an exploratory study in order compare leaders and physician perspectives with respect to required leadership qualities. The purpose of the study was to gauge what is necessary to develop current and future leaders. This study centered on leaders that expressed interest in gaining new academics and leadership skills. They structured interviews to gather data from leaders and found that both developmental and established leaders agreed that knowledge, people skills, emotional intelligence and vision are all characteris tics required for leaders to be successful. The interviews indicated that healthcare poses unique leadership challenges and the complexity of healthcare institutions is greater than other industries with respect to training. Physicians tend to be far less willing to receive direction and collaborate on training necessitating the need for healthcare leaders to possess mature emotional intelligence skills; especially in areas such as empathy, self-awareness and self-restraint. The study provided evidence that leaders need and desire emotional intelligence training. Healthcare leaders admitted in the interviews that often one is promoted based upon academic and clinical accomplishments. Therefore they lack and desire training in other skilled leadership competencies such as emotional intelligence. The leaders agreed that knowledge is important however 70 percent stated that emotional intelligence was the most admired attribute (Taylor, Taylor, Staller 2008). Healthcare leaders agree that emotional intelligence is important element for leadership. But there is also evidence that leaders should promote development of emotional intelligence for their clinicians as well. A study published in the March 2011 issue of Academic Medicine highlighted a study performed by Jefferson Medical College of Thomas Jefferson University. It was established in order to quantify if there is a relationship between physician empathy and clinical patient outcomes. Researchers measured 29 physicians associated with 891 diabetic patients by utilizing the Jefferson Scale of Empathy as an instrument to measure empathy. The scale rated and provided a physician score on their empathy awareness based on the context that patient care requires a cognitive attribute that involves understanding and intention to help. After scoring the physicians empathy skills, the study compared them with the patients ability to control hemoglobin Alc and LDL cholesterol levels. The study concluded that good control of A1c and LDL levels was significantly better with patients associated with physicians having high empathy scores than with patient of physicians with low empathy ratings. This suggests that empathy should be a key component in overall physician competence (Jefferson University Hospitals 2011). As referenced in a research study documented in the Journal of the Royal Society of Medicine (JRSM), healthcare policy and practices are trending towards emphasizing the principles of patient-centered care. Providing patient-centered care is a multi-dimensional concept which addresses patients needs for information, views the patient as a whole person, promotes concordance and enhances the professional-patient relationship(Birks Watt 2007). There is a variance in the level of patient-centered care provided by professionals practicing within healthcare organizations. Healthcare executives are therefore interested in ways to improve patient-centered outcomes. Training professional staff on emotional intelligence generates self-confidence, sensitivity to patient needs and trustworthiness. These attributes can actually play a part in improving outcomes (Birks Watt 2007). Evidence of this is documented in JRSM where a study involving 30 physicians and 138 patients provided evidence that emotional intelligence plays a role in patient satisfaction. An extensive study involving 213 dental students found that perceived stress is lower when the student possesses higher emotional intelligence scores. Decreasing stress levels help to retain talent and quality nursing staff is extremely important in patient-centered care. A correlation between low emotional intelligence scores and nursing burnout and attrition was found based on study conducted on 380 nurses. It indicated that emotional intelligence can improve the working relationships within the healthcare culture; increasing the likelihood of retaining talent (Birks Watt 2007) A Clinical Connections journal article written by Erik Swensson, MD, FACS agrees with the premise that emotional intelligence improves healthcare culture. He emphasizes the continual challenge for physicians and leadership professionals to routinely coach and hold peers accountable. The article stresses the need for professionals to possess emotional intelligence skills involving self-awareness, self-management, social awareness, and relationship management. Healthcare professionals need to move away from protecting our own and towards helping our own, he stated. Emotional intelligence establishes a foundation for building a caring environment and establishing a culture of collaborative safety (Swensson 2012). The International Journal of Collaborative Research on Internal Medicine and Public Health suggests that making emotional intelligence a core competency for the healthcare professional will result in enhancing clinician-patient relationships. Patients feeling empowered, knowledgeable and in control of their healthcare tend to make healthy lifestyle modifications. Clinicians whom are trained in emotional intelligence skills can help patients with self-awareness, self-regulation, and motivation. This requires time to listen to patient concerns (ie. empathy). Enhanced relationships will thereby result in an increase in desirable health outcomes (Coelho 2012). Cultivating the patient-clinician relationship may affect a patients emotional intelligence on initiating legal action against providers because the patient is part of the care solution and overall more satisfied with the care provided. Research indicates that more satisfied patients are the less likely they are to take legal actio n. Therefore cultivating emotional intelligence may be a mechanism towards a reduction in healthcare legal cases and costs associated. Todays healthcare environment demands pay for performance. Healthcare executives need to expand their overall emotional intelligence competencies in order to recognize and expect these attributes in leaders and clinical professionals within their organization. Executives have to establish and take ownership for their culture. In doing so they must consistently demonstrate the leadership qualities they expect to be exhibited by their administrative and clinical staff. As evidenced in the studies described above executives will benefit by investing in their own emotional intelligence education and should extend it to all levels within their organization. Doing so will provide a caring culture, reducing healthcare costs, retaining talent, and motivating clinicians to provide excellence in patient care.

Three Phase Induction Motors Engineering Essay

Three Phase Induction Motors Engineering Essay Three phase induction motors are one of the most widely used industrial machines. This is mainly due to their simplicity, high reliability and robustness. Although three phase induction motors have the same physical stator as a synchronous machine, they do have different rotor constructions. In addition, three phase induction motors are divided into two groups: squirrel-cage and wound rotor. The magnitude of the flux in the quadrature axis in the stator diminishes, so that the flux will be zero, but the speed is increased above the synchronous speed. The rotor current comes from rotor voltage, so the resultant backward rotating for the flux component provides the magnetomotive force (mmf) so the flux is positive in the quadrature axis. So, the speed at which the magnetic field rotates can be determined. If the motor is connected to rated frequency, the speed of the magnetic field is called the synchronous speed (Ns). The following table shows the relationship between number of poles and synchronous speed when the frequency equals 50HZ. Pole pairs 1 2 3 4 6 Number of poles 2 4 6 8 12 Synchronous speed 3000 1500 1000 750 500 Table (3.1) relationship between number of poles and synchronous The relationship between number of poles and synchronous speed is inversely proportional. 3.2 Equivalent circuit of an induction motor. The per phase equivalent circuit is very important for induction motors and can be used to provide a great deal of understanding and prediction of performance of the induction motor in a stable state. The induction motor needs to provide for operation on the induction voltage and current in the rotor circuit from the stator circuit (transformer action); this is because the voltage and current in the rotor circuit of an induction motor is basically a transformer operation. So the equivalent circuit of the induction motor is similar to the equivalent circuit of the transformer. (In the transformer, primary like the stator in the induction motor, secondary in the transformer like the rotor in the induction motor. In an equivalent circuit per phase of an induction motor, as shown in figure (3.1), Rs and Rr are the stator and rotor winding resistance per phase. Ls and Lr are stator and rotor leakage inductance per phase. However, the aim of test and analysis is to be able to refer the rotor resistance and reactance to the stator circuit and thereby to drive an equivalent circuit referred to the stator. Figure (3.1) induction motor per-phase equivalent circuits. (3.1) (3.2) (3.3) (3.4) (3.5) (3.6) (3.7) (3.8) (3.9) (3.10) (3.11) (3.12) (3.13) In this circuit between a and b apply Thevenin Figure (3.3) Simplification of equivalent circuits of an induction motor Open Circuit voltage at ab (3.14) Short Circuit supply (3.15) (3.16) (3.17) (3.18) Maximum occurs: (3.19) (3.20) . 3.3 Overview on control of Induction motors. Induction motors with squirrel-cage motors are used in industry because the advantage of these types of motors is their relatively low cost and simple construction. Induction motors always work at a nearly constant speed. However, power electronic converts; it can work to vary the speed of an induction motor. The induction motor drives can be divided into groups based on their applications: (a) Adjustable-speed drive. One important application of this drive is in process control by controlling the speed of fans, compressors, pumps. (b) Servo drive: by means of sophisticated control, induction motors can be used as servo drives in computer peripherals, machine tools, and robotics [reference]. I would like to give a brief explanation of two methods that are used in the control of induction motors and I will go into more detail about these methods later. Vector control is a method of control of induction motors so the stator current is controlled in the field rotating reference using PWM inverter [Reference]. The rotor flux and stator flux linkages are represented by ÃŽÂ »ar (t) and ÃŽÂ »as(t) depends on the angle of the rotor Ó ¨m because the mutual inductance between the stator windings and rotor windings position is connected. However, the main reason for the q and d axis analysis in machines like the induction machines is to control them properly, for example: vector control [reference], the method of vector control of induction motor drives produces better dynamic performance than scalar control [reference]. The following block diagram shows the direct torque control system of an induction motor. Figure (3.4) shows direct torque control of induction motors. This alternative type of control of an induction motor is very simple and basic in terms of construction. It consists of a switch table, hysteresis controllers, flux estimator and torque. It is much easier to represent in a block diagram compared to the block diagram representing the vector control system due to the absence of coordinate transformation between the synchronous frame and stationary frame and also it does not need a pulse width. Direct torque control drives are controlled by the method of a close loop system without using a current regulation loop and are also related to use of a stationary d-q reference frame as well as having the d-axis aligned with the stator q axis. Moreover, the flux and torque are controlled by the stator voltage space vector defined in this reference frame[reference]. Scalar control is another method of control of induction motors and is also the first method of control before the vector control method. The advantage of this method is simple cont rol and ease of use. The motor drive is described by three factors: (a) frequency (b) voltage (c) parameters of the motor and its power supply [reference]. The scalar variable is strictly one represented by magnitude alone. This method uses either close loop or open loop control and any feedback loop such as that for speed. This use of scalar quantities gives the basic characteristics of satisfactory steady state behaviour, but poorly controlled transient response. 3.4 Description of the Induction motor drive Since a motor drive plays a big part in the control system, it is necessary to have some background information about it. In a typical induction motor drive, power electronic devices are used to operate AC motors at frequencies other than the supply one. It consists of two main sections, a controller to set the operating frequency and a three-phase inverter to generate the required sinusoidal three-phase system from a DC bus voltage. Therefore, an induction motor requires a variable-frequency three-phase source for variable speed operation by using a power converter system consisting of a rectifier connected to an inverter through a DC link. The next figure shows a block diagram of the power circuit of a typical variable-frequency induction motor drive. Figure (3.5) shows Variable-Frequency Induction Motor Drive The rectifier converts the power grid AC voltage into a fixed DC voltage. An LC filter to provide a smooth DC voltage, which is then applied to the inverter input, filters out the harmonics. 3.5 Induction Motor Control Methods 3.5.1 Vector control The vector control of induction motors has been widely used for high performance drives. There have been many studies developed and presented which allow an overview of vector control (reference). Many proposals for the theory of electric machines discuss using space vector control to represent sinusoidal distribution in the air gap and they also discuss types of control of ac drives including induction motor drives, permanent-magnet ac drives and switched reluctance drives (reference). Induction motor drives have performance control as the same high performance four-quadrant DC drive. In 1960 field-oriented control (FOC) was used in the area of induction motors, but in the past decades, induction motors have been controlled by using scalar control methods like the voltage/hertz. However, this manner is an old way used before vector control in the area of induction machines, but it was an easy method of controlling an induction motor (Reference). 3.5.1.2 Concept of vector control The concept of vector control of AC drives is related to a space phaser which provides a means of representing three phase variables in a machine, voltage, current and flux (Reference). Both flux and torque (DTC) are basically controlled by methods of closed loop; so are methods of control of an induction motor, using closed loop without current loop, similar to the conventional vector control drives (Reference). So the stator current will be utilizing transformation to the d q synchronize system and direct axis with the rotor flux space factor; therefore, the stator d q axis current is controlled dependently and the d q-axis for rotor flux will be zero. (3.21) The relationship between the stator current, rotor flux and electromagnetic are shown by this equation: (3.22) Where Is rotor flux linkage, Rr , Lr , Lr are rotor resistance, and Lm magnetizing inductance. (Reference). However, the space vector in the three phase inverter will produce eight output states [1 0 0] switch states, upper in switch phase is represented by à ¡ and b- is closed and c are open. The eight space vector represented by V0 [ 0 0 0] and V7 [ 1 1 1 ] are null and continuing six are of equal magnitude and arranged 600 part in space diagram as shown in figure. (Reference). Figure (3.6) shows witching voltage space vectors. 3.5.1.3 Control Characteristics Vector control has allowed the dynamic performance of AC drives so that they better DC drives; the flux and the torque can be controlled separately by using vector control producing components of the supply current. The terminal voltage cannot be directly monitored, but can be using the dc link voltage and switching function of the inverter supplying the motor. Currently, the drive dynamic is largely used with the inverter control of the stator current of the induction machines; this in turn is determined by the supply voltage and inductance of the machine. The main features of the direct torque control (DTC) are direct control of the torque and flux, and indirect main control of voltages and currents. This type of control has a number of advantages: sinusoidal stator current and reduced torque oscillations; excellent torque dynamics; and the main advantage of (DTC) direct torque control, absence of coordinate transformations which related to vector control implementations. However, in this type of control there are some disadvantages: possible problems during starting and low speed operation and also during change in torque command; it also requires flux and torque estimators (Reference). The vector control theory provides independent control between torque and flux; torque is controlled by the q-axis component of current if the flux is constant and oriented along the d-axis of the referred frame. The referred frame can be rotor flux-oriented control, stator flux-oriented control or air gap flux-oriented control. Thus, the phase angle and the modulus of the current or current vector have to be controlled. Figure 2.1(a), [Reference], shows the rotor angle  Ã‚ ±r with respect to the stator. Since the vector control is to be implemented in the rotor flux oriented reference frame, the induction machine is fixed in that reference frame by rotating the variable as appropriate. Figure (3.7) shows that the rotor flux reference frame rotates at speed (angle  Ã‚ ±e) with respect to the stator reference and the d-q axes are fixed to the rotor flux space phasor. This results in decoupling of the flux and torque which are separately controlled by stator direct-axis current i ds and quadrature-axis current iqs. [Reference] (B) Vector rotation Figure (3.7) (A) Rotor angle 3.5.2 Direct and Indirect Rotor Flux-Oriented Control The vector controls can be divided into two groups, indirect and direct, for the indirect (slip frequency controlled) and the direct (field oriented). The characteristics of these two controllers have been considered to be the same, but there are some differences between these methods. However, the direct control type is a modern control theory and also has high performance and it is more well-known than indirect control (Reference). In this two methods above are considered of voltage and current of a stator. The first method, indirect, is related to stator current control and the second method is related to stator voltage control. In both cases the system inputs are torque and flux reference which is required current values for isd and isq. Field oriented control to induction motor operation in a synchronously rotating d-q reference from that is aligned with one of the motor flux. So, control of the torque and flux is decoupled such as the d- axis component of the stator current and rotor flux magnitude and the q-axis component control , the output torque , where the ids stator current of d-axis component and is the rotor flux magnitude demand, so can be given in equation as (3.23) Where, Lm = magnetizing inductance. For the q-axis component of the stator current iqs, the torque demand as (T* em) so can be determined as the equation: (3.24) The d-axis of the synchronously rotating reference frame to be aligned with the rotor flux, the slip relation. (3.25) Direct rotor flux-oriented control (RFOC) has a control loop for flux where the measurement is performed using flux sensing coils (or Hall-effect devices) or by the flux model. In indirect rotor flux-oriented control (RFOC), the rotor flux angle is not measured but is estimated from the equivalent circuit model. One of the techniques for estimating the rotor flux angle ( Ã‚ ±e) is based on the slip relation, which requires measurement of the rotor speed () and slip frequency (). The slip frequency is dependant on rotor time constant ( Ã‚ ´r) and estimated rotor flux amplitude. This indicates that indirect methods are easier to implement since they do not require a flux model, but are less accurate. Nevertheless, if the model were perfect, the performance obtained would be identical to direct torque control. In [6], the relationships between direct and indirect approaches have been analyzed. It proves that they have the same control but have differences in coordinate of state va riable, the rotor flux and stator currents. A new indirect vector control with an observer has been presented which has the same characteristic as the conventional direct torque control. Figure (3.8) direct vector control Figure (3.9) indirect vector control 3.5.3 Scalar control method Scalar Control manner is related to AC machines and can use voltage fed-inverters. In addition, the scalar control is related to control of the magnitude of a variable only, also using of applications for constant voltage/hertz supply at the motor terminals are given constant air gap flux, so it could be that the stator voltage is dropped. (Reference) The scalar control methods are considered just for study state behaviour, but have poorly controlled transients. (Reference) This method applies to use in either close loop or open loop, and in any feedback loop such as that of speed. The scalar control method was basically developed for study state operation. However, it is a method also used in variable speed applications. (Reference) In this curve, the voltage and frequency are applied on the stator, therefore, when the supply frequency is constant, the speed will be constant, but the torque can be changing as the square of the applied voltage. I will give more details about scalar control in another chapter. 3.5.4 Comparison of vector control (VC) and scalar control (SC). Induction machines are widely used in various industries as prime workhorses to produce rotational motions and forces. However, the squirrel-cage type is a simple and rugged electrical machine with low cost and minimal maintenance; this is reason that the squirrel-cage types are most widely used in industrial electrical motors [reference]. With regard to the scalar control methods for an induction machine, only the motor model is considered for steady state and the scalar control methods are controlled based of the induction motor, but this method will not give good performance transients for an induction motor and it is also poor in terms of dynamics; but the vector control methods considered above are valid for transient conditions and the vector control will give a dynamic performance far superior to that of scalar control [reference]. The scalar control method to control an induction motor is simple to execute and easy to programme, but the vector control is related to the varyin g magnitude and phase alignment of the vector quantities of the motor. Moreover, the scalar control is related to the voltage per hearts v/f control and is usually used for low cost drives where high dynamic performance is not a key requirement. The applications include fans, blowers and pumps where the applied load is known. In this method, the form is simple, the control does not require any sensors and the control algorithm can be implemented in a relatively low performance microprocessor. Vector control is related to a mathematical model which deals with voltage, current, flux torque and the motor parameters. We can control the instantaneous stator currents, control the magnitude and position is. The following diagram shows a feedback control system for measuring currents. When the controller has a fast response then is vector can be imposed on the stator rapidly. Advantages and disadvantages of vector control and scalar control [reference] Method Advantages Disadvantages SC Simplest method of obtaining variable speed. Low cost and easy to implement solution. Is widely used. Is not as complicated as other control methods. Poor transient performance and poor dynamic. It cannot control torque directly. The transit response such as control is not fast. VC For those d component and q component are two decouple components can be independently controlled by passing through separate PI controller. This control method has an excellent torque and speed curve. It has excellent dynamic performance. Sensitive parameter variation use PI current regulators that decrease transient performance. Is more complicated than any other control method. Cannot control torque before transformation is done. Table (3.2) advantages and disadvantages of scalar control and vector control

Wright and Le Corbusier Essay -- Frank Lloyd Wright, Architecture

Frank Lloyd Wright and Le Corbusier are two very prominent names in the field of architecture. Both architects had different ideas concerning the relationship between humans and the environment. Their architectural styles were a reflection of how each could facilitate the person and the physical environment. Frank Lloyd Wright’s Robie House, is considered one of the most important buildings in the history of American architecture and Le Corbusier s Villa Savoye helped define the progression that modern architecture was to take in the 20th Century. Both men are very fascinating and have strongly influenced my personal taste for modern architecture. Although Wright and Corbusier each had different views on how to design a house, they also had similar beliefs. This paper is a comparison of Frank Lloyd Wright‘s and Le Corbusier ‘s viewpoints exhibited through their two prominent houses, Frank Lloyd Wright’s Robie House and Le Corbusier’s Villa Savoye. Wright designed according to his desire to place the residents close to the natural surroundings. He felt that a house should be a natural extension of its surroundings and not just positioned on a site. Wright designed his buildings so its layouts and features could merge with its surroundings rather than merely resembling a rectangular box on a lot. Wright stated, â€Å"A building should appear to grow easily from its site and be shaped to harmonize with its surroundings.† His main objective was to demonstrate how people can be harmonious with nature. He called this Organic Architecture. Wright felt the relationship between the site and the building, and the needs of the client where very important. In contrast to Wright, Le Corbusier displayed industrialization rather than nature. ... ...erior images show that both buildings highlight the horizontal, are free of ornamentation, and define volume rather than mass. . The architectural style of both Wright and Le Corbusier was to be achieved through standardization, which meant the separation of building elements into independent systems. These included the tendency to create spaces that flow together, rather than being compartmentalized to a particular function. Interior images indicate that both buildings have eroded the box for a space that flows without partitions between them. Additionally they shared attributes include a trend toward simplification of form, the elimination of unnecessary and decorative elements, and a marriage of form and function. Works Cited See Curtis, p. 257 See Le Corbusier, pp. 4, 6, 164. Sarah Jones, Building Utopia: Frank Lloyd Wright and Le Corbusier, 2008

Mensch und Natur: Ein Beitrag zu der Theorie des :: German Essays

Mensch und Natur: Ein Beitrag zu der Theorie des "Homo Universus" ABSTRACT: The following discussion is centered on German romantic philosophy. The founder of philosophical romanticism, F.W.J. Schelling, speaks of the identity of all spheres of the universe. This view is echoed by other romantic philosophers, e.g., Novalis, Hà ¶lderlin, von Baader, and Schubert, as well as later neoromantics such as Scheler and Heidegger. I wish to show homo sapien as homo universus. Homo sapien is tied to the universe and must be aware of this oneness. Such knowledge will ameliorate his alienation from nature. Uralt ist die Frage: "Was ist der Mensch?" Uralt und à ¤ußerst schwer zugleich. Wir wissen nicht genau sowohl wann "der Mensch" erschienen ist als auch was sein eigenstes Wesen ausmacht. Soll man "den Menschen" mit der geraden Haltung, mit seiner Neigung zur kà ¼nstlerischen oder symbolischen Gestaltung, mit der Sprache oder vielleicht mit der Fà ¤higkeit sich seines Intellects zu bedienen und Abstracta zu schaffen, verbinden? Alle die (sowie auch zahlreichen anderen) Auffassungen beleuchten den Menschen von einer bestimmten Seite, und tragen damit zu einem besseren Verstehen seiner Eigentà ¼mlichkeit bei. Hier wollen wir noch eine Theorie hinzufà ¼gen, die ein zusà ¤tzliches Licht auf "den Menschen" werfen kann. Es geht um die Auffassung des Menschen in mannigfaltigsten Verflechtungen mit der Umwelt. Die Umwelt wird weit begriffen und bedeutet sowohl das unmittelbare Milieu des Menschen als auch den ganzen Kosmos. Der letzte soll nicht nur als das Materiell-Sichtbare verstanden werden, sondern als Etwas, was neben der Materie auch das beinhaltet, was wir "Geist" zu nennen pflegen. Den Menschen wollen wir also als innigst verbunden mit dem allumfassenden "Universum" verstehen, mit Dem, was erfahrungsmà ¤ÃƒÅ¸ig bekannt und erreichbar ist, aber auch mit Dem, was noch der heutigen Erfahrung entflieht und oft als "unnatà ¼rlich" oder "geheimnisvoll" bezeichnet wird. Es ist klar, daß eine solche Theorie des "homo universus" im Mißklang mit den aufklà ¤rerischen oder positivistischen Auffassungen steht. Alle die wollen den Menschen nicht nur von den "unerforschbaren" Weltereignissen "loslà ¶sen", die sie fà ¼r "metaphysisch" halten. Sie wollen auch den Menschen von der sonstigen Natur abgrenzen und ihn als den selbststà ¤ndigen und von der Umwelt wenig abhà ¤ngigen Subjekt ansehen. Erwà ¤hnen kà ¶nnen wir in diesem Zusammenhang I. Kant, der die Welt "entzweit" und sie in die dem Menschen gegenà ¼ber existierenden "Dinge an sich" und in die "Erscheinungen" (Dinge fà ¼r uns) teilt. Der Mensch gewinnt zwar à ¼ber die Noumena die Oberhand im Erkentnisprozeß indem er sie zur "Erscheinungen" macht, er steht aber letzen Endes ihnen gegenà ¼ber einsam und ratlos indem sie vor ihm fà ¼r ewig gechlossen bleiben.

Unit Three – Marketing P3

Marketing Research Market research indicates decisions made by a business, in this case Tesco, by helping the decision makers understand undercurrents of its market. This process involves research done on customers, competitors and the overall marketing environment. For example, when Tesco is promoting a product, they need to know the likes and dislikes of their targeted consumers in order to target the correct market successfully. They would also be required to research about their competitors, to find out if by any chance they offered a product that was similar, and how they would differentiate their product from it.Also, as an overall, they would be required to research the environment of the market, as well as the size of their target market, in order to decide how they are going to offer the product to the consumers. Example: sold in store, online, or both. Primary and Secondary Research There are two types of research: †¢Primary Research †¢Secondary Research Informati on for these types of research can be done internally – within the organization, or externally, from another organization or source of information outside the organization, in this case Tesco.When information or data is gathered for a certain purpose and has not been gathered before is known is primary research. Internal primary research data source could consist of: †¢The business’s sales figures of products †¢A central database holding customer data External primary research data source could consist of: †¢Various questionnaires and surveys †¢A variety of focus groups and interviews †¢Observation techniques When data or information that has been collected before, either internally or externally, is used for research is known as secondary research. Another name for secondary research is ‘desk research’.Internal secondary research data source could consist of: †¢Sales and regional reports †¢Market research gathered in the past External secondary research data source could consist of: †¢Websites and trade journals †¢Newspapers and books †¢Public reports †¢Census data †¢Industry reports For business like Tesco that operate in many different fields, secondary research is more cost-effective, before they decide to conduct primary research. This allows Tesco to have a better understanding of the market, as well as recognize any major obstacles before conducting expensive research.Secondary research also allows them to make assumptions based on similar products and therefore, once primary research is conducted, it can be used against the assumptions to evaluate and compare. This will help indicate how much primary research they are required to do and therefore they don’t end up doing too much that is not required. However, Tesco is required to take the limitation of secondary research into consideration: †¢The information may be outdated †¢The information may be b iased in order to promote particular causes †¢The methods used to collect the research may be unreliable.Qualitative and Quantitative Research Research methods can be qualitative, quantitive or can include both methods. Well-planned market research consists of both methods in order to result with a good combination of information revealing different things about the same market. Qualitative research is one-sided and normally unrestricted. It normally is gathered through interviews with customers or focus groups and therefore result in a wide range of research based on personal experiences and feelings.A qualitative question allows the individual go give a broad answer and not based against options. Qualitative research can be used to: †¢Find the perceptions of customers about an organization or brand. †¢Discover how changes in price and other factors affect customers and spending decisions. †¢Explore customer preference, interests and other factors. Quantitative research involves numbers and figures that can be examined mathematically or graphically. This may consist of sales figures, market values, etc. , as well as responses from customers on questionnaires.This is only categorized as quantitative research if the responses from the customers a chosen from series of answers provided on the questionnaire. The difference between quantitative and qualitative research: QuantitativeQualitative ObjectiveSubjective Tests theoryDevelops theory Concise and narrowComplex and broad Measurable Interpretive Basic analysis: NumbersBasic analysis: words and ideas Logical and reasonableDialectic Establishes relationshipsDescribes meaning Experimental settingNatural setting Uses of marketing researchThe information collected for market research prevents businesses like Tesco making wrong business decisions. If the product designer for Tesco progresses a new product without market research, then the business is not moving forward on reliable sources and the refore are unaware if customers are interested in the product or not. This indicates, effective market research improves the chances of success and reduces the risks. Tesco’s can also measure progress effectively over time. This can be done by, carrying out market research, to found out the awareness of the product before managing national advertising campaigns.Once they have conducted the research, they can put their national advertising campaigns into action and again conduct research and compare the two. Therefore, this indicates, market research can be used to measure progress as well as the effects of marketing activities. Limitations of market research – costs, effectiveness and validity of data collected Weather market research is done at a small or large scale, any time is required to be performed accurately and appropriately otherwise it gives irrelevant results.All market research conducted has the chances of being wrong no matter how well controlled and plan ned. There are various reasons why market research may not provide accurate or good results but a usual problem is deciding whether the research conducted really measures what it claims to be measuring. Marketers for Tesco are required to decide how reliable the information they have obtained is. Also they need to take into consideration, if the research contained had different respondents or different set of data points, would the results be similar.Validity refers to whether the research conducted is what it intended to be. Validity involves dependability, which means, a valid measure must be reliable. But, reliability doesn’t have to link to validity, a reliable measure is not required to be valid. The difference between reliability and validity: †¢Reliability guesses the point to which an tool processes the same way each time it is used in under the same conditions with the same subjects. †¢Validity involves the point of accuracy of your measurement.For organiza tions like Tesco’s, validity is considered more important than reliability because if a process does not precisely measure what it is supposed to, there is no use of it and therefore it being reliable is useless. Costs are also an essential consideration for Tesco when carrying out market research, as they are required to take into consideration if they money spent is worth the research undertaken and its potential benefits to the product, as well as the organization. A lot of time, effort and money can be spent on market research and in the end the solution discovered might not be worth implementing.

BSc Participant

These approaches can be implemented through the following methods, analytical, participatory, regulatory, protected area, systems approach, socio-cultural approaches and economic approaches. Command and control regulations- It's an approach where political authorities mandate people, by enacting a law, to bring about a behavior and use an enforcement machinery to get people to obey the law. It's an environmental management strategy where the government or responsible authorities sets standards to protect and manage the natural resources. This technique covers the regulatory and protected areas approaches.In Zombie the regulations involve the bylaws, legislative, reserved or protected areas and bio monitoring. The government of Zombie construct national parks like Generous National park, sanctuaries, Safari areas, recreational areas, botanical gardens/ reserves, state forests. The maintenance of biodiversity, natural resources and associated cultural resources. This approach worked we ll in Zombie as this was evidenced by the creation of many national and recreational parks thought it resulted in some negative impacts to the communities where these projects were done.Some of the problems were location of communities, poaching of the resources by the nearby communities for example the recent issue where 20 elephants were killed in Kari The approach of protected areas in town is appearing no to be considered when different developments are taking place in Zombie. A good example when the city council of Chitchatting gave residential stands on wetland areas of Zinged 4. Another good example it's the construction of the new shopping mall that is along Hare-Bylaws road, that place was reserved by the city fathers of Hare as a wetland.This shows that the approach of protected areas in towns is not considered. This evidences the conflicts between economic development and conservation of resources using this approach. Another challenge faced by Zombie from these protected areas is land, some of these areas require very large pieces of land, and for example the Generous National Park is approximately 5000 km, and this is a very large piece of land that can be used for other economic uses. But on the other hand these areas can serves as income generation to the country through CEO-tourism.Another approach involves the regulatory policies and pieces of legislation. On legislation arioso acts have been put in place to date for the management of natural resources in Zombie. Some of the acts and policies are Forest, Minerals, Wildlife, Environmental management Acts. Some of the Acts are; Native husbandry Act (1951), National Parks & Wildlife Act (1975), National Parks & Wildlife Amendment Act (1984), Communal Land Act (1982) and the Water Act (1976).Described below are some of the Acts; The Zombie Environmental Management Act (2004) provides for the sustainable management of natural resources and protection of the environment; the prevention of pollution and environmental degradation. The Act also provides for the preparation of a National Environmental Plan and other plans for the protection of the environment. The implementing 134 agency of the Act is the Environmental Management Agency and Ministry of Environment and Natural Resources Management. The primary strategy embodied in the Act is crystallization.The Environmental Management Act is now the supreme environmental Law in Zombie. Another act is the Forest Act of 1954, the management of woodland and forest products is embodied in the Forest Act and the Communal Land Forest Produce Act. The Forest Act (1954) provides for management of wood resources wrought Zombie although its focus is state forests and on private land. The main management strategy in both acts is to establish conditions under which forest produce can be used and to determine and regulate the extent of that use.Both Acts rely on the crystallization of activities in order to protect and regenerate forest produc e. The Forest Act creates forests officers who have general police powers of seizure and arrest. Designated officers or forest officers under the communal Land Forest Produce Act do not have power of arrest. These arrests may only be made by rest officers in Communal Areas where the charge is for an offense under the Forest Act (Camaraderie, 2000). Parks and wildlife Act (1975), the Act is administered exploitation of plants, trees and wildlife.Camaraderie (2000) argues that the Act seeks to protect indigenous plant life and prohibits its sale without a permit. However it allows pants to be harvested by the owner or occupier of land for use in the home of occupier. It further allows harvesting indigenous plants where the area is needed for cultivation and construction. All the regulatory legislation described above was enacted using the top- down approach. The masses were not consulted so as to incorporate their knowledge in the conservation of the resources hence the defilement.If participatory approaches had been used, indigenous knowledge could have been harnessed into the statutory acts. Although Acts mentioned above are vital to the country, they are failing to curb depletion of forest resources. Mismanagement of these forest resources is rife especially in most Communal Areas of Zombie regardless of the existence of the legal frameworks. One of the major causes of the misuse of forest products, especially trees, is arguably the fact that people are nearly ignoring traditional beliefs and indigenous knowledge systems in the sustainable management of natural resources.Economic Instruments approach- this is natural resources management strategy that uses the concepts of economics meaning it deals with the market. By dealing with the market it means it deals with the demand and supply. This approach uses economics to manage or regulate the environment by using supply and demand to minimize the impact of the human economy on ecosystems. This approach changes the behavior of resource users through subordination of natural resources in the form of tax incentive, user charges f the resource, soft credits that enables the good management of natural resources, pollution charges to the polluter of the environment.The method employs approaches like analytical and system approaches to achieve its natural resources management successfully. The method uses the â€Å"polluter -pays principle†. The economic instruments used by this approach involve taxes or charges that are paid by the producer or firms. Since the producer is being taxed this increases prices, which provides both opportunity and incentive for innovation; eventually the innovations are so successful that prices end up below what they were before the source shortages occurred Aeolian Simony's rule of Ultimate Resource).The success of this technique depends on market developments and market variations. In Zombie economic benefit was identified as a major driver for sustainable natural resources management. The approach involves use of economic benefits as incentives to drive sustainable management of natural resources. Participatory approach- this involves empowering local communities to take up guardianship and stewardship over natural resources. Communities derive economic benefit by using natural resources as alternative land use.The most common participator programmer one in Zombie is the Community based Natural Resources Management (CPRM). The CPRM is where existing natural resources within an area are managed as a commercial enterprise at community level in a sustainable and productive manner. It has ecological benefits, it also makes sound economic sense by maximizing on the resources that are available and reducing the reliance on external inputs. The programmer started late sass with CAMPFIRE programmer, initiated by Zimmermann Department of National Parks and Wildlife Management, the wildlife, to rural communities.Because of its successful inter nationally in enabling immunities to derive a sustainable livelihood from wildlife management, the programmer achieved a great deal in terms of setting a stage for CPRM in Zombie. The problem with the CPRM was not covering all the resources; it was mainly focused on wildlife management. This presents a greater challenge to other resources since many Zimmermann communal areas are largely devoid of Wildlife. However to a larger extent the programmer was effective on managing natural resources in Communal areas of Zombie.This is because the programmer sought to decentralized the management of natural resources to rural communities which ivies these communities sense of ownership over the resources thereby motivating citizens to participate on managing the resources in their community. Another example of the participatory approach done in Zombie was the SAFARI MIT programmer. The participatory approach has been found to be an effective means to manage natural resources since the communi ty its self is in charge of managing their available resources thereby creating the sense of ownership among them.This approach is believed to bring cost-savings over mandatory policies for regulators, while encouraging individuals and communities to take holistic strategies to improve ND manage their natural resources efficiently (Khan, 2001; Lyon & Maxwell, 2004). Another approach used in Zombie is the system approach which encompasses critical view of system earth and the ecosystems approach. Ecosystem approach maintains or restores the composition, structure and function of natural and modified ecosystems for the goal of long-term sustainability.This is an integrated approach made up of protected areas approach, CPRM and the Turnaround Natural Resource Management (TORN). TORN is a board that manages resources found on the boarders of Zombie and its neighboring countries. A good example where this board work effectively it's between the South African- Zombie boarders. The Turnaro und approach rises after a number of factors which includes, the need to better manage shared resources; the drive for economic growth through regional integration and development, the need to foster community participation, promote peace and security and embrace the forces of globalization.This was evidenced by the construction of the game park that stretches from Zombie to South Africa for the management of wildlife and other resources found between the boarders of these two countries. However, despite these envisaged benefits of Turnaround natural resource management (TABOR), there are numerous concerns arising from these initiatives ranging from community normalization, inter – community conflicts and inter – state inequity in the distribution of benefits.