Essays on Attenuation

In everyday life, an average human being interacts with so many experiences, some of which significantly influence our response. In a college party for instance, several people are having conversations and loud music is playing: and yet each groups of people conversing can still make out what the other person is saying despite the noise. In morning traffic, it is typical to see a corporate employee communicating through a hands free device, taking coffee and driving at the same time. In college rooms, it is typical to find one student reading while the other plays music. How is all ...

In psychology and psychophysiology there were many attempts to give a comprehensive definition of attention. According to Merriam-Webster Dictionary, medical definition of attention is ‘the act or state of attending: the application of the mind to any object of sense or thought; an organismic condition of selective awareness or perceptual receptivity; specifically: the complex of neuromuscular adjustments that permit maximum excitability or responsiveness to a given class of stimuli; the process of focusing consciousness to produce greater vividness and clarity of certain of its contents relative to others (Merriam-webster.com) while as stated in ‘On the neural basis of focused ...

Criminal Law

Introduction This paper looks at the claim by Cullen and Gilbert (1982) that “Rehabilitation should be the major goal of any correctional system” (p. 5) and seeks to determine if rehabilitation is the most efficient method to attenuate crime. From the onset of the 20th century, efforts to combat crime have seen a rise in the implementation of rehabilitation as a preferred philosophy or methodology enacted by the justice system in order to reduce this societal challenge. The treatment of criminals was perceived as both efficient in terms of crime prevention and also the treatment of offenders was considered a more ...

[Author Name(s), First M. Last, Omit Titles and Degrees] [Institutional Affiliation(s)] [Include any grant/funding information and a complete correspondence address.] Network security is a means to assure that unauthorized access to assets in the network is prevented. This is vital if we have to protect the CIA triad of Information security, which is to protect the Confidentiality, Integrity and Availability of the data. Unauthorized access could violate one of more of the CIA triad’s principals. These unauthorized accesses also cause loss of accountability and nonrepudiation of actions. This paper examines the concepts of Network Security ...

- Linear and Non-linear devices A linear electrical component is an electrical element that has a linear relationship between current and voltage in a circuit. Examples include resistors, capacitors and inductors. Non-linear electrical elements do not have a linear relationship between the current and voltage. An example is a diode where the current is a non-linear function of the voltage. The load line analysis is a graphical analysis of the characteristics of non-linear electronic circuits to show the constraints that is placed on the non-linear devices by the rest of the circuit. Using a simple diode (a non-linear electronic device) to explain the ...

Introduction

ADSL (Asymmetric Digital Subscriber Line) is a modem technology that is available channel bandwidth is shared between the outgoing and incoming traffic is asymmetric. Since most users have incoming traffic volume is much higher than the volume of outgoing, the rate of outgoing traffic is significantly lower. This restriction was uncomfortable with the spread of peer-to-peer networks and video.

History of development

History of the development of ADSL technology started in the second half of the eighties, when were searching technology for interactive television. Pioneer family of technologies xDSL is a company Bellcore; in 1987, it introduced the first specification of a family of technologies ...

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Introduction Cloning (biology) is a natural occurrence or reception through multiple genetically identical organisms by asexual (including vegetative) reproduction. The term "cloning" in the same sense and is often used in relation to the cells of multicellular organisms. Cloning is also known as getting a number of identical copies of genetic molecules (molecular cloning). Finally, cloning is also commonly referred biotechnological techniques are used to obtain clones artificial organisms, cells or molecules. A group of genetically identical organisms or cells is a clone. Cloning is widespread in nature in different organisms. ...

Introduction

Regular exercise is known to be a therapeutic lifestyle factor. It is not a drug, but it possesses many traits of a powerful pharmacologic agent. Routinely performing physical activity (PA) stimulates many beneficial physiologic changes in the body (O’Keefe, 2012). Age is associated with increases in body weight, body fat, and abdominal fat. Besides as age advances, many people tend to spend time in sedentary activities. Fifty-five to sixty years is the age when people retire from their services; and this sets a sedentary lifestyle for most. Sedentary lifestyle, as is widely known, is associated with obesity, diabetes, cancer, and/or cardiovascular diseases ( ...

Introduction

Signals that are periodic can be represented in time and frequency. In any analysis there are major signals which are used; these signals include sine, triangle and square. Additional signals can be derived from the three main signals. There is an important component in signal technology, the low pass filter. This is an electronic gadget that used in the filtering process of the signals. The filtering process is undertaken by allowing all the frequency components that come below the cut-off frequency to go through the circuit while all other frequencies that are above cut-off frequency will be bypassed. Noise ...

Technology is taking an important role in each and every aspect of our lives. It has ventured in virtually aspects of our lives impacting heavily on three main aspects of our lives. The text elaborates clearly on our dilemma between three technological pillars that make our lives fully intertwined with technology. These pillars are: computers, communication and digital entertainment. The book extensively elaborates what a computer is, communication within the various forms of networks and consequences of digital world alongside the advantages (Beckman, 4). Among the many issues discussed in this book is the issue of computer hardware. From a ...

WLAN design and set up

Wireless local area network is mostly installed if the network administrator wishes to reduce the number of clients using wired network. This is also influenced by the number of devices such as laptops that have the ability to connect to a wireless network hotspot reducing the number of cables required to establish a complete network (James, 2004). One of the main factors to consider while establishing any wireless network is network security. This is mainly ensured using network passwords and authentication information which is set by the administrator. Even though security measures are taken, the ease of hacking is also ...

Abstract

Computed Tomography CT refers to an imaging procedure that has been popular over the last decade in the imaging of the human body. In coronary artery imaging, this procedure is called Computed Tomography Coronary Angiography (CTCA). This technique is used specifically in the imaging and assessment of the cardiac and coronary anatomy to determine if one has a coronary artery disease or to determine the extent to which the individual has been affected by the disease. This procedure is also used to evaluate the coronary arteries and their anatomy. There are also other methods or techniques that are used in ...

Introduction

When it comes to control systems, the inverted pendulum system is something that stands out from amongst the rest. Linear control concepts such as stabilization of unstable systems can be demonstrated using the inverted pendulum. Since the system is intrinsically non linear, many non linear concepts can also be demonstrated using the inverted pendulum. This system has basically two equilibrium states, one stable and the other unstable. In the stable equilibrium state, the pendulum points downwards and in the absence of any controlling forces, it returns to its original state. In the unstable equilibrium state, the pendulum points upwards. ...

Brief history

Wireless security has been developing rapidly in the recent past. There has been constant increase and improvement of features associated with wireless security. Initially, wireless communication outlined two forms of authentication described by the 802.11 standards. These two forms were the open system association and shared key authentication. Actually, open system authentication was not authentication per se. it was just that open and free for all to access the network resources without any form of verification. Shared key, on the other hand, employed the use of WEP key. This was a shared key hat was used for all platforms connecting ...