Thursday, February 20, 2020

Starting and Naming a Business (Administrative Law and Government Research Paper

Starting and Naming a Business (Administrative Law and Government Regulation) - Research Paper Example Through franchising, the business will be associated with well developed brands and reputation. Disadvantages; franchisees usually have to operate according to the operations rules of the franchisor. Franchisees are required to pay ongoing fees to the franchisor. There is less control especially while selling the business, since there are procedures to follow (Pride, Hughes & Kapoor, 2011). The following are the disadvantages and advantages of a sole proprietorship. Advantages; it is easy and uncomplicated to start this form of business. There are few formal commerce requirements. There is direct motivation since the entrepreneur assumes all risks and earns all the profit. There is better control since the entrepreneur is the sole decision maker. There are minimal legal expenses for starting sole proprietorship. There are no company tax payments. Disadvantages; the entrepreneur make all business decisions and assumes all responsibilities of the business, including business liabilities in case of insolvency. Entrepreneurs may experience difficulties while raising cash needed to start and sustain a business (Pride, Hughes & Kapoor, 2011). According to Pride, Hughes & Kapoor (2011), the following are the disadvantages and advantages of partnerships. Advantages; there are no prescribed requirements for the formation of a partnership. There are no prescribed requirements for the business operations. Therefore, it is inexpensive to operate partnerships. Partners are taxed individually, and this may result to lower taxation. Disadvantages; partnership is not a separate lawful entity implying that partners are, in their individual capacity, accountable for the business debts. The death of a partner may result to termination of the partnership. There may be difficulties in the decision making process. The following are the disadvantages and advantages of a corporation.

Wednesday, February 5, 2020

Compare and contrast the scientific principles of Magnetic resonance Essay

Compare and contrast the scientific principles of Magnetic resonance imaging (MRI) and ultrasound - Essay Example However, there are similarities and differences of these radiographic techniques in terms of scientific principles behind these, by which this paper intends to explore. Transmission and Reception of Waves. Magnetic resonance imaging and ultrasound shares their similarity in their ability to transmit their respective waves, electromagnetic and acoustic waves respectively, while receiving the signals induced by these transmitted waves. In magnetic resonance imaging, transmit coils emit radio waves to the patient, calibrated at the precessional frequency or Larmor frequency of hydrogen-1 at 42.6 MHz under a magnetic field strength of 1.5 tesla or above, generates a strong magnetic signal within the hydrogen-1 nucleus which can be detected by the receiver coils of the device1. On the other hand, in ultrasound, ultrasonic acoustic waves come from the source transducer as a result of a piezoelectric effect (conversion of electrical to sound energy), and solid objects along the watery body tissues causes an echo, which will be detected by the receiving transducer using the same piezoelectric effect (conversion of sound energy to electrical energy)2. Type of Waves. There are differences between electromagnetic waves emitted by magnetic resonance imaging and the acoustic waves of ultrasound imaging, mainly on the speed of wave travel (electromagnetic waves are faster than acoustic waves), ability to travel in an empty space (acoustic waves cannot travel in a vacuum while electromagnetic waves can), and the type of waves traveling along fluid (longitudinal and transverse in electromagnetic waves, while longitudinal only in acoustic waves), yet both electromagnetic and acoustic waves are similar to be having properties of frequencies, amplitude, intensity2. How these properties are used in both devices is also dissimilar (the frequency of electromagnetic waves in MRI is set to a standard 42.6 MHz setting, while the frequency in ultrasound is calibrated according to the de pth of penetration)1 2. Non-use of ionizing radiation. Both magnetic resonance imaging and ultrasound do not utilize ionizing radiation present in x-ray, computerized tomography and fluoroscopy. In magnetic resonance imaging, the electromagnetic wave frequency of 42.6 MHz is very low to cause ionization of molecules, while acoustic waves are not a type of radiation which causes ionization of molecules even in high frequencies2. Body Temperature Elevation. Both magnetic resonance imaging and ultrasound produces heat. Heat is a form if energy, which can be appreciated in thermodynamics as â€Å"internal energy† in terms of excitement of molecules. From elastic energy, while the waves are being deformed by compression and rarefaction, there is energy transformation into heat or thermal energy which can be absorbed by the system3. Waves, whether it is radio frequency electromagnetic or acoustic, has the property of intensity, which is the power output per area (I = P / A) while e nergy can be computed as power over a period of time (E = P / t). If power will be substituted, energy is equal to the product of intensity and area, divided by time (E = [I x A] / t). By this formula, it is already clear that energy is involved in waves. Assuming that the wave is at rest, the energy of a wave is its potential energy. However, if the wave is put in motion, this potential energy will be