Signal Research Papers Samples For Students

The purpose of this paper is to particularize the historical, science and technological impact of Li-Fi, to also include the vast reaching context of this incredible point in the wireless timeline. The paper seeks to establish the historic background of the Li-Fi technology as well as its technical working. The possibilities of Li-Fi extend to the application in military and undersurface communication operations. Traffic Management is another area where LED will be of great use. Li-Fi can be used in LED lights traffic managements. Other areas where Li-Fi will be ideal include disaster management, remote location positioning and dead ...

- 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 ...

ABSTRACT

In today’s modern world, new forms of technology are invented to make our lives easier, faster and more convenient. In the early days, data transferring has to be done through wires via fax machines. The invention of the mobile phones also gave way to a much faster data transferring which involves text messaging, multi-media messaging and infrared technology that involves two devices placed closely together in order to create a successful file transfer. However due to the invention of the Bluetooth technology, data transferring has never been this easy unlike before.
Bluetooth technology unified all the devices such as ...

Abstract

Wireless sensor networks (WSN) are fast becoming extremely popular with usage in a variety of applications starting from mobile communication to home security. One of the main constraints faced during the design of the wireless radio sensors is power consumption. Most of the sensors are battery operated and many of them cannot operate without power for over a day. Transceiver is one of the main power guzzlers. Several techniques are used for reducing the transceiver power consumption in order to increase the battery life of the unit. Wake up radio receivers are offering a new way of operating the WSNs. Wake up ...

1. Introduction
The electrical energy is generated to bring some development to the world. The electrical energy lights the world during night time. People can do their work even during night time without any disturbance because the electrical energy replaces the sun during night time. The energy is neither be created nor be destroyed. The electrical energy is generated by converting other form of energy. Generally mechanical energy is converted in to electrical energy. The electrical energy is generated by different methods; say hydro thermal energy generation, diesel power generation, gas power generation, and nuclear power generation. The ...

The technique of low coherence reflectometry has been extended to tomographic imaging in the systems of the biological. The light from the coherence property which is reflected from the retina provides the required information from the reflective boundaries of the delay on the time-of-flight. This delayed information helps in determining the longitudinal site location of the reflection. This is achieved by the use of OCT system’s scans providing the location of the reflected site map in a two-dimension. It uses a mode that operates in the analogous which is then converted to ultrasonic pulse-echo imaging .
The resolution of the ...

Introduction

Control systems are not complete without the installation of actuators. Actuators are the mechanisms which are used by the control system to achieve a process or a function. They are responsible for the motion or control mechanisms which are used by the control system to accomplish their defined operations of functions. Actuators are used to convert the electrical signal from the control system to mechanical movement or motion which then accomplished a desired task or function (Bart et al., 2013).There are different types of actuators used in control systems. The type of actuators used in control systems depend ...

Introduction to antennas

Traditionally, people had problem with communication especially where it involved long distances. Wireless communication began in 1901, when Marconi received the first radio signal across the Atlantic Ocean. From that period, technology kept on advancing until the development of the present day antennas. Antennas form the basic components of any communication system that changes energy from one form into another. A receiving antenna changes electromagnetic energy into electric or magnetic energy. They work through transmitting RF signal that travels on a conductor into an electromagnetic wave in free space. An antenna maintains the same characteristic regardless of whether in use ...

Sensors detect an input event and control an output event. The output often requires different timing than that of the input event. Sometimes several inputs must jointly produce an output event. In other words, logic alters the raw sensor signal so that it is directly useful for controlling local action in response to sensed events (Ouzounov et al., 2006). A sensor is an interactive application; it expresses interest in an event by defining a sensitive ‘region' and an event type. For example, if a sensor wishes to receive events directed to a geographical object, it can define its region ...

EXECUTIVE SUMMARY

Ethernet has been termed as the most ubiquitous networking interface in the world. Almost all traffic passes through multiple Ethernet links. The point is that majority of the Ethernet links spend time while idle waiting between packets of data transfer, but consuming power at a near constant rate. In fact, on average, 10% of all IT power is consumed by network devices and network interfaces translating to tens of TeraWatts hour per year. A solution lies in the design of green networks which consume minimal power while idle without losing their functionality. In this research paper, Energy Efficient Ethernet is ...

It is well understood that communication is the process of passing a message from one person to another, therefore there are always different means of communication and also different levels of communication. Cold war defines the period from 1945 and 1991, whereby there was war between Soviet Union and the United States. From time way back during the ancient times until roman empires and up to the cold war period, the adoption of communication by the military has proven to be the victory facilitator. The most proven difficult task during war is that of communicating with the allies and having ...

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 ...

INTRODUCTION

The internet is termed as a revolutionary change in every society because of the technological and societal changes it brings about. The ease of access and exchange of information has become a phenomenon that is replacing old concepts. Companies are outsourcing their services to companies located overseas through the internet. The place and time of working has been greatly impacted by the internet. People work from the comfort of their homes at any time of the day and night possible through improved internet connectivity thanks to technologies such as fiber optics. The paper will review some of the current fiber optic ...

IT Infrastructure

Abstract
Since the internet invention, modem as evolved tremendously and impacted lives globally. Modems transmit digital information over a telephone line by converting it into electrical signals and demodulate it at the receiver via another modem. Based on the amount of data a modem can transmit per unit of time, typically bits per seconds, they are classified. In next section of this paper, it will examine namely 3G and 4G LTE modem technology compare the latter in light to multiplexing and error correction when transmitting and exchanging data via the internet. Further ahead, and the paper will compare encoding ...

Why is the H1 bus speed 31.25kbps, not something different, suitable for closed loop digital

control?
The H1 bus speed is not suitable for automated machinery control and is good for closed loop control within the automation process. In automation process cycle is working with a period of 0.25 to 1.0 seconds and only 50 transactions are available. Unscheduled messages have more transactions then a single bus segment. Bus speed of 31.25kbps was chosen as a binary fraction with 1MHz oscillated crystal with the division of 32.

Is the digital signal susceptible to noise? If so, how can it be reduced?

Digital signal is suitable for noise, but not that hard as an analogue signal.
The fieldbus pair uses twisted cable that are balanced above the ground. They are ...

Introduction

This study is confined to the limits of Los Angeles and studies the traffic in this place. City boundaries of Los Angeles area suffer from an ever-growing traffic. With the growing population and their expansion in different areas, the problem has grown in intensity. The traffic is not limited to the city boundaries. It has also spread into contagious territory where street congestion, delays in traffic and life and property hazard is as great as in the central traffic area of Los Angeles. This paper studies about the traffic problems of Los Angeles and the need for it.
...

Introduction:

As information technologies evolved and became more important for business and home use, users demanded for ways of directly connecting to systems in different locations. From large internet service providers, operators of bulletin board systems, to businesses getting critical data to road warriors in a timely manner, remote system access and networks became critical services that administrators were required to provide. However, it was necessary to ensure that only authorized users could access the provider’s resources, they could only access the resources they needed, and the administrators could track the users’ activities and access time for purposes of ensuring ...

Abstract

Schizophrenia is a mental condition that affects about 1% of the world’s population. It's often associated with attempted suicides with 50% of those affected by the condition attempting suicide at some point of which 9-13% are fatal . The symptoms of schizophrenia are grouped into three: positive symptoms, negative symptoms and cognitive deficits. Cognitive symptoms have been known to be an indicator of both the disease outcome (prognosis) and the response to the treatment. They include the inability to pay attention, language difficulties, memory dysfunction, poor interpretation of social cues and cognitive inflexibility. Patients with schizophrenia have difficulties in assimilating ...

IT133 – Week 3 Assignment

IT133 – Week 3 Assignment
4B/5B is a block encoding system that breaks up long strings of zeroes and ones but does not increase the frequency bandwidth by breaking them up in four-bit sequence. Table 1 shows each block of four bits replaced by a block of five bits. Due to this, there cannot be more than one leading zero and two trailing zeros. This means that the resulting bit stream has no more than three consecutive zeros (Figure 1). This bit stream is transmitted using non-return to zero inverted (NRZI) method and is used in 100BaseTX (Fast Ethernet) networks ...

Introduction

Taking measurements may require the conversion of the measured quantity to electrical quantity. Transducers are devices or elements that perform this function by transforming physical quantities such as quantities like sound, light, or temperature into electrical signals like current, voltage, or capacity. Transducers consist of inputs, sensing elements, transduction elements, signal processing, and electrical outputs. The inputs known as the measurands are the quantities, states, or properties that are to be translated into electrical outputs. The sensing elements accurately measure these input energies and sends the information to the transduction elements to be transformed into the desired form. The ...

1.0 Introduction
A computer network is regarded as a connection of computers and other similar devices in a specific configuration for the purpose of resource sharing. Software applications, files and folders, hardware such as printers and scanners, as well as internet connection are resources that can be shared on a network. Computer networks within a small geographical area such as a building are known as Local Area Networks (LANs) spanning a distance of not more than 100 metres. The connection of the devices are normally achieved with the use of wired connections, but wireless connections using free space as ...

Analysis of Walmart financial performance

Analysis of Walmart financial performance
The net income has increased in the year 2013 by 8.35% as compared to the year 2012. The net operating cash flows are also increasing on the regular basis. In year 2012 the net cash flows from the operating activities was $24.25 billion and in the year 2013 it is $25.59 billion. There is a clear increase of 1.34 billion in the cash inflows of 2013.
The net cash outflow from the investing activities in the year 2012 was $16.61 billion and in the year 2013 it is reduced to $12.61 billion. The ...

Diamond has several applications: it is used for decoration, to manufacture high quality stereo equipment in addition to being included in cutting instruments. It is therefore important to determine the quality of the diamond. This can be done a simple, nondestructive method that is known as Raman spectroscopy. This method is used in the characterization of the morphology of the molecules of carbon materials. The bands that are detected on the Raman spectrum are dependent on the frequency of the vibrations which is attributed to the bonds within the molecule. This technique has several applications in diamond science: it is ...

Immunogenic cell death: the role of SAGE

Immunogenic cell death: the role of SAGE

Introduction

Millions of cells are always being removed in the human body not only to regulate and coordinate the body’s biochemical pathways but also to keep the cells healthy. This particular systematic removal of cells occurs through a selective mechanism called cell death or apoptosis process. Apoptosis is not a new concept in the understanding of the biological workings of the body. This homeostatic death of body cells has been defined as a tolerogenic or a non-immunogenic event for many [1]. However, new discoveries have unearthed the existence of a different concept ...

Immunogenic Cell Death: The Role of RAGE

Introduction
Millions of cells are always being removed in the human bodyin order to regulate biological pathways and keep cells healthy through a particular mechanism called cell death or apoptosis. Through apoptosis, such homeostatic death of cells has been defined as a tolerogenic or a non-immunogenic event for many years [1]. However, during the past few years, scientists have discovered the occurrence of a different concept of cell death – immunogenic cell death (ICD), where the death of a cell stimulates a response from the immune system against antigens of a dead cell, and this mechanism of cell death may ...

Natural disasters occur in the planet from time to time. One of the greatest natural hazards that places on Earth can experience is the typhoon. A typhoon is a dangerous natural disaster which could bring great amount of devastation. In 2013, the Philippines experienced a major disaster due to the typhoon named Haiyan, based on its international name, which is considered as one of the strongest typhoons ever recorded. The purpose of this research paper is to discuss the hazard and impact of the typhoon Haiyan in the Philippines. This paper also opts to analyze the mitigation strategy and the recovery ...

1.0 Introduction
A mobile network is a wireless network that is distributed over several land regions known as cells. At least one transceiver called base station or cell site placed in the affixed location is used to serve every cell. A wireless connection in this case involves the use of unguided transmission mediums such as air, radio, satellite and others for transmission and reception of voice and messages. In mobile network connection, every cell uses dissimilar group of frequencies from the adjacent cells. It helps in avoiding interference and to ensure the provision of bandwidth inside every cell. This ...

Introduction

The deployment in this case involves the process of ensuring that VoIP services are put into operation to be used by clients across the wider communication network. The VoIP itself is the technology that permits the processing of voice message and its transfer over internet protocol (IP) networks. Some of the examples of the IP networks are internet and Ethernet LANs. In fact, voice over internet protocol is a technique and a collection of numerous technologies that help in the delivery of voice communications plus sessions of the multimedia over internet protocol networks. IP telephony, broadband telephony, IP communications, internet telephony, ...

Cancer is the abnormal proliferation and differentiation of cells in an abnormal tissue incongruent with the growth pattern of normal cells that persists even after the stimuli that evoked the change is withdrawn. The cell cycle check points at G1, G2 and at the end of metaphase that prevent transmission of genetically damaged DNA fail to occur. Transmission of faulty DNA results in either an abnormal rate of cell division and multiplication or abnormally constituted daughter cells.
The genes affected are the normal regulatory genes including growth promoting proto-oncogenes-normal genes that are prone to becoming cancerous on mutation ...

Wireless communication refers to transmission of data or signals via electromagnetic waves. In other words, it is a form of communication that does not involve the use of wires. Instead, radio and microwaves are used to transfer data or signal from one device to another. The first wireless transmission system was developed in early 20th century. This system used Morse code which was a combination of dots and dashes or long and short electric signals assigned to each letter of the English alphabet. The signals were sent and received via wires. This enabled transmission of text based information over a long distance. ...

INFRASTRUCTURE

There is a wide gap in business data analysis and information forecasting in the business world. Analytic Co. is a data collection and analytics company specializing in collection, analysis and storage of data. The company is experiencing tremendous growth as a result of efficient business practices. However, it needs efficient networking and security as it plans to expand from one to three floors. In order to facilitate expansion process, it has to occupy two more additional floors. For it to achieve full business potential, it needs an expanded networking solution that guarantees better communication and internet availability. The offices will utilize a wired ...

Hall Effect sensors are transducers that respond to a magnetic field through varying their output voltage. They mainly consist of a thin piece of rectangular semiconductor like gallium arsenide passing a continuous current in it. They are used in current sensing, speed detection, positioning and proximity switching. They are also used many ignition distribution systems and monitoring of the engine rotations per minute. They produce an on off voltage signal that can vary from maximum to zero and then back to maximum (WMC 1).

Functioning

A hall sensor has three terminals or wires. One terminal is for the ground, the second terminal for ...

Accelerometers are used in automobiles to detect rapid collisions and have the ability to sustain a wide range of shock necessary for air bag deployment systems. The choice of accelerometers is founded on a number of factors including size, resistance to noise and temperature variations, and the response mechanism. Airbags is a safety device mounted in vehicles and consists of a flexible envelope that guards occupants from striking internal objects. Various components are necessary for an airbag system. Accelerometers, gyroscopes, impact sensors among others are just a few used to detect an impact from a collision. The signal in the sensing system should reach a threshold ...

Introduction

The Global Positioning System (GPS) is defined as a satellite-based navigation system whose work is to track the locations of users. It is composed of 24 satellites that were placed into space for the purpose of military applications. The United States Department of Defense placed the satellites into orbit in which it was used for military purposes but the system was made available to civilians in the 1980s. It is noted that GPS have the ability to work in all weather conditions across the globe and at any time (Hutchins Para. 1).

GPS Technology Application and Benefits

The GPS satellites rotate around the Earth twice a ...

Now, it’s time for me to buy a new computer. I have pretty specific requirements and that’s why, instead of buying a laptop computer, I have chosen to buy a desktop PC. This PC will be built by me from the parts that I will buy separately. This approach suits me because I will be able to choose the pars with such specifications, which will be tailored to my needs. I need to have a computer for gaming and partially for design; additionally I would like to watch moves on it. Gaming will require high performance and high quality multimedia devices, ...

Communication System

The key elements of a data communication system are the source, the transmitter, the transmission system, the receiver and the destination. The source will be used in the generation of the data to be transmitted. The transmitter has a purpose of transforming and encoding the data into signals that can be transmittable for example the transformation from a digital bit stream to the corresponding analogue signal. The transmission system serves the purpose of carrying the data and it can be in terms of a transmission line or a complex network connecting the source and the destination. The receiver will ...

The PID (Proportional, Integral and Derivative) controller is feedback controller which aims to make system output follow desired response (Hägglund & Åström, 1995). The controller is defined by following equation:
ut=K(et+1Tioteτdτ+Tdde(t)dt)
where u is input control signal to the plant model and e is the control error which is difference between desired and actual system output used to generate the control action. As shown by equation the controller consists of proportional, integral, and derivative terms. Gain K, integral time Ti and derivative time Td are all parameters of PID controller.
We can ...

In the heart, a large number of the vital pathway, which includes energy metabolism, stress response, and survival, apoptosis, oxygen sensing, and inflammation response are all regulated by reactive oxygen species (ROS) and a cellar redox state (Dickinson & Chang, 2011). Through upregulation of proapoptotic proteins and mitochondrial-dependent signaling pathways, ROS is part of a process of cardiac remodeling, cell death and hypertrophy (Dickinson & Chang, 2011). Molecular oxygen is a center for both formations of NO and regulation of ROS as significant energy metabolism by-products. Since the intermediates that are meant to be short-lived can either act as signaling molecules ...

It is not a secret to anyone that our body and the systems it consists of are controlled by a number of things. Naturally, everyone thinks of our brain as a control organ, when it comes to sending order within our body, however, not everyone knows that there are also hormones that shape our entire life. There are two regulatory systems by which the body adjusts to changes in the environment, circumstances and our daily routine. The first one is our central nervous system, with our brain as a major organ in that system, quickly transmitting a signal (in pulses) via a network of nerves ...

1. Introduction:
Mass communication and technological advancements go hand in hand. In easy word, both of them act as each other’s complements. With progressing times and advancement in every phase of life, every process of communication has evolved and that includes mass level interaction too. There are a number of different mediums of mass communication. Over the history, humans have invented and witnessed the most amazing technological inventions in the field of mass communication. Some of these mediums turned to become less functional and not capable of keeping up with the global progress. However, a few mediums out of ...

Citation: Busso, C., & Narayanan, S. (2007). Interrelation between speech and facial gestures in emotional utterances: a single subject study. Audio, Speech, and Language , X(XX), 1–16. Retrieved from http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=4317558
Single subject research has always posed some significant challenges to researcher s and scientists working in the field of experimental psychology. The fact remains that unlike popular opinion, single subject research can have statistical validity and can provide the necessary tools to provide usable data during many experiments(Kratochwill, 1978). Horner et al., (2005) provided some useful insights on how to assess the quality of a single subject research paper.
...

Abstract

Depression is known to influence an individual’s cognition and reaction. With this, studies were analyzed to come up a consistent assumptions and conclusions about how cognition and depression is connected. Cognitive Theories of Depression was discussed. The foundations of cognitive theories of depression was briefly explained, and later focused on studies by Aaron Beck, Dr. Albert Ellis and Martin Seligman. The main principles and assumptions of their works were explained as well as analyzed their objectives and proposals. Moreover, cognitive deficits in depressed individuals were discussed. Furthermore, it was explained how cognitive deficits develop, and the idea of memory ...

- Analysis of Different Approaches to Performance Evaluation
- Management by Objective (MBO) Approach
Management by objective (MBO) is an approach to performance management that helps plan personal and organizational goals. Also, MBO offers effective means of performance monitoring and compliance of the results with the goals set. MBO provides the tools of planning, managing, and monitoring the goals. Also, MBO helps set measurable goals and track their performance according to a schedule. Thus, using MBO, organizations can increase their efficiency, improve morale, and save resources. However, MBO has certain disadvantages as well, namely: not all tasks involve ...

Blood Pressure, Hypertension and the Nervous System

Cardiovascular activities within the human body are generally facilitated by the regulation of the sympathetic and parasympathetic afferent and efferent nerve fibers. Blood pressure is the relationship between the vascular resistance and the amount of blood that the heart pumps per minute (i.e. cardiac output). Cardiac output is affected by the following factors: end-diastolic volume, cardiac muscle contraction, and heart rate. While the sympathetic nervous system controls the blood volume and the tone of venous smooth muscle (determinants of end-diastolic volume) alone, the myocardial contraction and heart rate is controlled by both sympathetic and parasympathetic regions of the autonomic ...

In the modern world, teenagers have increased their use of cell phones leading to an addiction. Teenagers are using their cell phones for texting messages, taking pictures, accessing social media, playing games, and listening to music among others. As a result, they remain glued to their phones all the time. There are various ways in which cell phones can impact negatively to the health of teenagers. Apart from adversely affecting their health, cell phones are attributed to the way teenagers behave and act around people. By contrast, cell phones can be helpful to teenagers in many ways. As a result, teenagers ...

A motion picture refers to a series of still images, which when viewed in brisk succession, seem to be moving. There are two principles behind the creation of the illusion of movement of the pictures. These include; persistence of vision and displacement. Persistence of vision is a phenomenon that enables us to see the frames as a constant image without the incursion of seeing the space between the frames. Our brains form a visual impression upon seeing an image and the image loiters until the next image displaces it. Displacement, conversely, forms the illusion of movement. As the image shifts from frame to ...

“Football’s not a matter of life and death, it’s more important than that.” These are the famous words of former Liverpool manager Bill Shankly, in response to the statement that football is a trivial pastime, just a game. Even though his remark may appear to be an exaggeration, I don’t believe he was just joking. There are few activities that generate as much human interest, as much passion, as football.
Football is without doubt the most popular sport in the world. It is played in every continent. The major competitions of football are international events, topics of everyday ...

Abstract

The use of encryption and decryption techniques for securing communication is as old as the art of communication. Technically, a code is used instead of data which is a signal for intent to keep data secret. In order to recover the contents from an encrypted signal, accurate decryption key is needed. The key is basically an algorithm that is used to reverse the work of the encryption technique and get original form of data. There is always a potential threat from hackers to decode encrypted signal, to avoid such issues specialized intellectuals have worked hard and defended these threats by developing more ...

With the development wireless gadgets, there has been the need to ensure that their security is guaranteed. 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 wireless networks across different networks. There ...

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 ...

Introduction

Telecommunication is the transmission of information over significant distances. Telecommunications involve the use of visual signals or audio messages. Information transmission is a very important factor. Telecommunications aids sharing of knowledge, information and ideas. In wartimes, telecommunications played a very important role in ensuring that there was coordination amongst the warring groups. Telecommunications offer a better way to relay messages to each other. (Reo, 1994)

Old methods of relaying messages

Communication has been existing since time immemorial. Old methods of relaying information that was also used during wartime include:

Using smoke

Using horns

Using messengers

Using drums

Advanced technologies

Communication methods have been improving day by day. ...

Abstract

Language is a system of transmitting views and expressing ideas in form of speech or in written forms. The vocabulary of any language is a lexicon and it is serves as a connection between a sign and its meaning in any language. Therefore language is divided in three parts: signs, meaning, and a code connecting signs and meanings. In any Language there are four levels which are used to analyse the language. These levels are: Phonology which analyses sounds; Morphology which analyses units forming a language structure; Syntax which analyses rules and principles in forming sentences; and Semantics which analyses the relationship between signs and ...

Tele-Medicine in a Satellite Facility

Telemedicine is an old concept but new technology that enables a healthcare provider at one location to provide basic healthcare services such as diagnosis, intra-operative assistance, and medical consultation to patients, physicians or paramedical staff in a satellite or remote facility. Most researchers and scientist believe that there is no substitute for patient-doctor face to face interaction; however, telemedicine could be used to manage a few medical cases efficiently and remotely. In first prototype of telemedicine was introduced in the 1980’s in the form of slow-scan images, facsimile machine or telephone (Hsieh, & Hsu, 2012).The mode of communications ...

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Improving Walmart’s Corporate Communications Strategy

Walmart’s image had been steadily eroded by continuing accusations of malpractices and lawsuits to the point that business is experiencing losses. Many have chosen not to shop anymore as a sign of protest. Walmart must a take a proactive stance in facing negative publicity by defining and implementing a communications strategy.
Walmart’s detractors have testimonies and evidences that they are willing to bring to court and if there is truth in any of these, the best that Walmart can do is to recognize them and present a conciliatory stance rather than denying accusations, covering ...

Information about Planned Parenthood

Planned Parenthood is an organization responsible for providing high quality and affordable healthcare to men, women, and young people. The organization also ranks the top in the United States terms of providing sex education. The organization collaborates with different agencies and organizations worldwide to promote sexual education and ensure the well-being of members and their families in all regions of operations. Planned Parenthood offer affiliate healthcare services such as prevention of unintended pregnancies, treatment of sexually transmitted infections including HIV tests, and offering education programs and outreach to young people and adults. 84 percent of people seeking assistance from ...

Medical Equipment: MRI Machine

Over the past few years, technology has advanced significantly in almost all fields. The medical field has witnessed comprehensive technological advancement. It can be attributed to different factors, such as an increase in complicated diseases that call for comprehensive examinations and need for efficiency in medical operation. One of such products of technology in the medical field is the magnetic resonance imaging (MRI) machine. The equipment presents a lot of benefits to patients and the overall medical fraternity. MRI technology has advanced rapidly over the past few years. The current paper discusses the significance of MRI machine, the types ...

People have dreamed of flying since ancient times. The Legend about Daedalus and Icarus, images of Egyptian, Roman, and Assyrian gods, and extant writings about different experiments and scientific thoughts reflect the desire of humans to become closer to the sky. In the United States, history of aviation starts with the day when brothers Wright built a plane and made in it the first flight ever. That happened at the beginning of the twentieth century, and since then, the American aviation had undergone significant changes and had become one of the most developed in the world. How did the ...

Of the numerous inventions that people enjoy today, television set was said to have had the most influential effect in modern society. In America alone, a total of 98% of its population has access to the television, a very big difference from the mere thousands that were recorded to have had TV before 1947. Today, surveys indicate that a normal American spends at least two-and-a-half to five hours a day in front of the television. Along with the many benefits it has offered, people have also seen the negative effects of television in the passing of time. Despite this ...

Many people often find it hard to choose the major they want to pursue in college and thus the career that they want to be part of in the future. Ultimately, choosing a major and thus a career can be the determinant of or the difference between being disappointed for the rest of one’s life or being satisfied with the path of life chosen (Anderson & Gilbride, 2003). The process of choosing a career is often influenced by several factors. Regardless of the varying nature of these factors, the ultimate factor that should decide one’s career is passion. ...

Velocity Sensors

Sensors are devices which detect variations in a physical incitement and turn it into a signal which can then be measured and recorded. Sensors transform several types of energy in different forms such as radiant energy, movement, thermal energy, magnetic energy and electrical signals. In addition, sensors come in different types that are very useful for different specific functions.
The first sensor, thermostat was released in market in the year 1883 which was then considered as the first ever manmade sensor to be modernized; then there came in 1940s the infrared sensors followed by the invention and release of different ...