How does the courts interpretation of due process affect police Essay

How does the courts interpretation of due process affect police practices related to search, arrest and interrogation - Essay Example Court plays an integral role in criminal trials and paving way for the course of justice, however, a court’s interpretation is not only restricted till punishing the perpetrator of the delinquent act but also pays an important in other facets of the trial.These facets involve police practices such as issuing search and arrest warrants, and even the process interrogation is contingent upon the interpretations made during the proceedings. (Scheb, 2008, P.p 10-15) It should be further noted that by initiating the process of prosecution the court has undertaken their responsibility to punish the criminal on behalf of the entire society. There are basic procedural steps that follow respective searches, seizures, interrogation and arrests. Law enforcement agencies are directly under court orders. It vastly depends on the circumstance under which complaint is filed and the defendant is being tried. (Scheb, 2008, P.p 10-15) It is the truth-finding process; a search warrant may be issu ed in order to gather evidence and if the evidences produced in the court may cause the legal professionals to assume that a further search can help search out more incriminating evidences or something that can prove the defendant’s innocence then in such a circumstance a search warrant may be issued. Seizures are the result of â€Å"Reasonable suspicion† that is the high probability that the property in question, may be altered that can distort or destroy a significant piece of evidence. Analogous to the facets of the US criminal justice system discussed above, arrests are made following a â€Å"Grand Jury Indictment† and is only performed when evidence point towards the fact that a crime has been committed and there is ample reason to believe that a crime has been committed. Basically, it is because of the jurisdiction that is produced during the trial which is responsible for the law enforcement activities and it is their interpretation that affects these the most. It is fundamental step in determining guilt or innocence of the defendant. (Scheb, 2008, P.p 10-15) 2. Why do state courts have to follow the same due process rights as the federal courts regarding search and seizure rights?   Courtroom proceedings are initiated by the law being broken and then it is followed by the process of trying the accused, analyzing the evidences and then eventually handing out the sentence accordingly. The criminal justice system in the United States of America is characterized by an absence of a single criminal or civil court. Instead the American judicial system is fragmented into the federal or national judicial system and then each American state or territory is governed by their set of rules and regulations. (Emmanuel, 2009, P.p 5-6) Courts that function on a state and federal level may operate as separate entities but they have countless similarities. The constitutional doctrines that is used to govern the entire nation is also used as the fou ndation of drafting out a state constitution hence, there is immense amount of correspondence in the way they function. As a matter of fact the framework, upon which both of these entities function, is largely the same and when it comes to issuing search, arrest and seizure warrants both courts follow the same due process. (Weiss, 2003) The only difference is in the types of crimes that are tried by each of the legal entities and the way they are tried; for instance federal courts hears cases pertaining to offences that affect the country as a whole whereas, state courts hear offences that are slightly lower in gravity than the ones being handled in federal levels. Therefore, for the most part of the trial process the same procedure is followed. That is relevant interpretation of the trial by the court causes magistrates to issue search and seizure

What are the key challenges facing educational leaders in relation to Thesis

What are the key challenges facing educational leaders in relation to Information and Communication technology - Thesis Example Educational leaders are excited as well. They are aware of how Information and Communication Technology (ICT) can have a great impact on education and on the students they cater to. However, there are many challenges that beset them. They need to equip students with increasingly higher levels of knowledge and skill not only through the provision of a conventional curriculum incorporating ICT, but also help them develop personal qualities such as being autonomous, self-organizing, networking, enterprising, innovative (Hargreaves, 1999), with the capability constantly to redefine the necessary skills for a given task, and to access the sources for learning these skills (Castells, 1998). Such aims are truly challenging to achieve. The openness and attitudes of teachers, being the frontliners in this particular educational reform is examined. Most teachers are not adequately prepared yet to make use of exciting new educational technologies because neither their teacher education programs nor their schools have provided sufficient time or incentives for them to learn (Norman, n.d.). Teachers themselves need to be transformed from the traditional ways of organizing teaching and learning in school to using more technical skills in more open, user-friendly, peer-controlled, interactive, virtual communities. Teachers need to model flexibility, networking and creativity which are key outcomes for students to survive the next millennium (Hargreaves, 1999). Training of teachers in ICT and staff development is one huge challenge faced by educational leaders. Psychologically, technology can pose problems for staff feeling threatened and insecure of being dispensable, and easily replaced by the new innovation (Jones & O’Shea, 2004). This is mostly appeased by effective training. Human resources strategy and practice is central to the successful staff development. Enhancing

Sleep Disorders Essay Example | Topics and Well Written Essays - 250 words

Sleep Disorders - Essay Example Rhythmic brain activity occurs in this stage known as â€Å"sleep spindles†, as mentioned by (Cherry, 2011). It is mentioned in (www.sleepdex.org, n.d.) that deep and significantly slow brain activity characterizes stage 3 of human sleep. Slow brain waves called delta waves are observed mixed with faster waves in this stage, while delta waves are exclusively produced in stage 4. Rapid eye movement and fast breathing occurs in REM, where the rate of brain activity equals the rate observed when a person is awake. Parasomnia is a sleep disorder in which one has severe trouble in comfortably falling asleep. In this disorder, the patients experience nightmares or sleep walking. Parasomnia can occur if one is aroused from non-REM sleep. (MedicineNet, 2011). Sleep walking most commonly occurs during stage 3 and 4, where there is slow brain activity and the patient has absolutely no idea of his/her body movement. There occur 4-5 sleep cycles throughout the night and sleep walking prim arily occurs during the first or second sleep cycle. Since there is short sleeping time involved in nap, sleep walking does not occur during the day time. Therefore, sleep walking characteristically occurs at night time during stage 3 and 4. References: Cherry, K. (2011). Stages of Sleep.

Research assignment Essay Example | Topics and Well Written Essays - 750 words

Research assignment - Essay Example The participants were randomly assigned to either the experimental group receiving BGL or the control group receiving DRL. In addition to the study participants with Alzheimer’s disease, a cohort group of participants consisting of family and caregivers of the light recipients were also controlled in the study. A two-group experimental design with repeated measures on one of the factors was used. The study qualitatively examined the effects on global function on people receiving blue-green light (BGL) and dim red light exposure (DRL) as perceived by participant caregivers. Interviews were conducted on the selected population. The interviews utilized open-ended questions since the exact response of the participants’ global function was unknown, and it is possible to miss facets of perceived change in global function. Demographic data was however not collected on the caregivers as they were not considered to be the focus of the research (Nowak and Davis, 2011). The study took the form of four stages. Stage one included selecting and screening and support and educated assent from restorative sheets in the territory, family, and guardians eager to take part in the study. The second stage included gathering of benchmark information on the slumber and daytime languor for all chose members. The third stage included randomizing members to either the BGL or RDL treatment where light was controlled for 14 back to back days in 30 moment morning sessions. Stage four included gathering of post-test information from the first day after fruition of the light treatment for five sequential days. Wrist actigraphs were utilized to gauge rest attributes and daytime drowsiness all through all stages (Nowak & Davis, 2011). In the analysis of the sleep data the authors used frequency and percentage distributions, means, and standard

International Negotiations (Lansa and Newco Case) Essay

International Negotiations (Lansa and Newco Case) - Essay Example The government partially regulates Lansa (Brett 33). The Argentine Ministro de Industria Tecnologica serves on the Board of Directors. Lansa’s headquarters is in the outskirts of Buenos Aires; however, all the manufacturing and distribution comes out of Mexico. Newco’s CEO, Mr. Abercrombie, has the mandate to expand into South America with a new product line called â€Å"infomatrix†. Infomatrix is a remarkable telemetry unit that facilitates voice and data communication between all types of vehicles such as automobiles, boats, helicopters. Since Newco had previously approached Lansa at an international Telecommunication convention in London, Newco’s CEO decides to try again. On the other hand, Lansa is doing well. The CEO, Mr. Lopez, has also heard about infomatrix. He decides to approach Newco having seen that a joint venture can further boost the success of his company (Rubin 14). Objectives Newco’s objective aims at raising the value of the stock . Their main concern is to get a written document that would permit public disclosure. Lansa’s concern is dealing with an American company. It believes it has something to offer and its willingness to carry what it can understanding (Rubin 45). Lansa would also like to have a document in writing that would permit public disclosure. Mr. Arricoitxea thinks of securing an office in the upcoming elections and the company’s success would be a significant boost during his campaign. Both Newco and Lansa are aiming at taking advantage of NAFTA. Considerations Mr. Abercrombie sends a five man advanced team to Mexico upon request from Mr. Lopez. The negotiation advanced team comprises a representative of the corporate managers who is the lead negotiator, a corporate lawyer, a market analyst, a telecommunication engineer and a representative of the corporate shareholders. The representative of corporate managers brings in and supports the ideas and proposals of the corporate mana gers. By representing the interests of the corporate managers, he is in the best position to lead the negotiating team (Rubin 56). The corporate lawyer will ensure that all the transactions made are legally binding within the law. His knowledge in corporate law will be a key factor to be used during the negotiations. The market analyst can assess the viability of the market for the product. He analyzes the market price and other economic aspects that will help determine if the product will succeed in the proposed market. He will be able to convince the Lansa Company that the product will succeed in their market (Thomson 77). The telecommunication engineer becomes equipped to give any details with regards to the infomatrix. His knowledge of the product will be extremely useful in negotiating for the importance of infomatrix in the market. The representative of the shareholders will be able to back the other negotiators in his team during negotiations since he is representing the inte rests of the corporate shareholders. The main players in the international negotiations are Newco and Lansa. Newco has a new product, â€Å"infomatrix† that could enable them to expand to the South American market and hence further increase its profitability in the future. Lansa believes that a joint venture with Newco could further boost its success in

In the Mood for Love Essay Example for Free

In the Mood for Love Essay The quote by the author Drucker is a prime example of how non-verbal communication is most of the time more important than the actual answer itself. Body language is an essential element of everyday interaction amongst people. Based on simple hand gestures or a flicker of a smile, one can instantly change the syntax or structural meaning of a sentence. This change could turn a negative sentence into a positive outcome. Throughout the history of cinema body language is a tool that is applied to every movie. Movies by their very nature started of as any elaborate ploy on body language. The silent film era relies on nonverbal communication that is accompanied by visual elements and implanting a specific score in order to suspend disbelief that the audience is sitting an in a dark room watching various shades of light and color onto a screen. The movie In the Mood for Love directed by Kar Wai Wong is a prime example of how the characterization and plot of a movie doesn’t need to revolve around the construction of dialogue between the protagonist and other characters in the movie. To start off I would like to say the cinematographer Christopher Doyle and Pin Bing Lee did a great job in presenting a somewhat stale plot line into a visual masterpiece. There are many examples, of how the cinematography of this movie enables the audience to visualize the budding of a love that happened out of pain, spite, and loneliness. I would like to analyze the cinematography of a scene in order to bring more clarity to how body language is more important. The first scene I would like to examine is in the first act of the movie. Keep in mind during this scene there is no dialogue just a musical score. The faces of the two adulteresses remain obscured throughout the scene. Fade from black no picture in your minds eye the wife Su Li-Zhen is in her apartment with her husband while everyone is playing Mahjong. She takes the chair behind her husband and sits there. When she leaves for a brief instance to let another woman by which is the wife of Mr. Chow. Chow then proceeds to take his queue and exit the room looking troubled and deep in thought walks by and slightly grazes Mrs. Li-Zhen. Li-Zhen then goes to sit down next to her husband and puts her arm on his shoulder. This scene is jam-packed full of visual elements that make this scene very compelling and drives the movie forward with such palpable tension. First, the wife of Mr. Chow is dressed in a vibrant red dress that really pops out from all the dull whites and browns that are present in on the screen. This vibrancy of color and by the nature of all the skin that is revealed above her neck alludes to a characterization that is more sexual, more â€Å"desirable† in comparison to Mrs. Li-Zhen. She is wearing a dull white dressed that is cut in a more traditional and plain way. By the nature of the fabric and patterns on the dress it looks like she is blending in more than standing out. This direct comparison is between the mise en scene of the costuming foreshadows that the wife Mrs. Li-Zhen will become less desirable over time and this will present the problem of some kind of cheating. Also during this scene the very body language present between the two women towards Mr. Li-Zhen is very different. The wife of this man is sitting behind her husband she seems reluctant in showing her affections towards him. She doesn’t really act like they are together she only looks over his shoulder. The camera movement at this scene is very important when the wife walks into the room the camera pans out back to the doorway. Then, The adulteress wife walks from off the screen through the doorway. At this point the camera pans in. The woman in red then proceeds to walk in between the married couple sitting down, and drapes her arms across Mr. Chows back. Mrs. Li-Zhen gets up puts on an insincere smile and backs against the wall. The woman in red seems to push the faithful wife away. This scene is a metaphor down to a tee of what is happening to the Li-Zhen and Chows relationship. The initial distance between the first married couple shows that there is some discontent or rift between them. This body language is very subtle but its possible to see that they aren’t not entirely happy with each other. It’s not until she has her back against a wall and sees the discontent on Mr. Chow’s face do you really see the wife really warm up to her husband. The camera movement during this scene further supports my points on the relationship between the two couples. When the camera pans out it is signifying that even though Mrs. Li-Zhen is getting closer in reality she is quite distant from her husband. This distance is growing and impossible to reverse in this instance. This distance created by turning the shot from a medium, shot to a wide angle. Which sets up the next camera movement where Mrs. Chow comes from off the screen and the camera moves in and follows her as she makes her way towards MR. Li-Zhen. This shows that the there is a shift of desire going from the faithful wife to the new fling. This sexual shift is subtle but very evident once the adulteress pushes the faithful wife. The score during this scene is also very prominent during the entire movie. It is present every time we she a slight shift of the relationship status between the two couples. At first the music indicates that the physical, mental, and sexual attraction between the original couple is shifts towards a more negative outcome. During this scene the music is indicating that the once happy couples are now beginning to shift towards separation. The music cues as Mrs. Li-Zhen walks into the shot from off the screen. The tone and tempo of this piece directly correlates to the overall plot line of the film, and is key to this scene as well. The tone of the piece is a somber one; very little percussion is used in the score. There is a very prominent violin that is playing over other various strings. The tempo of this particular piece starts with slow staccato or â€Å"plucky strings† they start slow and there is able time between the notes to hears brief instance of silent. Then piece revs up to have a very mellow violin playing on top. The use of the tone in the piece reflects on the mood of the entire film and distress of the two that are faithful initially. The tempo of this piece shows that at first everything stress there is some kind of hidden element going on and then it quickens. The heartbreak comes, and now they have to live with it. As the movie progresses however the music becomes an indicator that new found couple having difficultly letting go, but they are making progress towards becoming whole again. When talking about this scene in particular the use of this music directly correlates to the action of what is going on in the scene. At the beginning of the piece the wife is walking into the room. This plucky string part signifies that there will be tension going on between Mrs. Li-Zhen and her husband. The violin is cued in as the camera movement stops and the adulteress wife walks onto the screen. The music is indicating that this woman spells trouble and she is bringing to the movie. Also, as the violin is playing the husband walks out of the room right after a brief pause between the violins solo. You hear a few plucks and silence of the violin at this instance. The silence of the violin signifies that he is not a problem but instead also in trouble from what is happening around him. He exits and the film cuts to the Li-Zhens being more affectionate, yet the sad music is still playing. This foreshadows that no matter what the relationship between these two couples is doomed even though the wife either remains ignorant or refuses to let go. At, which we find out later in the movie she tries to resist letting go the man she married because she cares so deeply for him. For example the original faithful protagonists are eating at a restaurant and both are trying to emulate the other’s old significant other. This movie very eloquently uses subtle metaphor through body language. The visual elements and the musical score help to strengthen the lack of dialogue in order to tell this story in a more compelling way. Body language is a necessary tool to understand in order to have a more in depth understanding of the characterization of the actors in well done films. Without strong body language is possible to sends confusing signals to everyone around you whether it be in the movies or in real life.

The Wireless Internet Technology Computer Science Essay

The Wireless Internet Technology Computer Science Essay Wireless Internet gives us a permission to access World Wide Web or Internet email via wireless network. Without using any telephone line or any cable network wireless internet can be used. Not only in a particular place we can use the Internet through wireless Internet even if we are out of the office or home. People have tended to use wireless Internet not only it dont use wire but also it has easy using for their activities. When we consider about the wireless technologies, Wi-Fi, Wi-max, Blootooth, 3G and Satellite are examples. When we use these technologies to access Internet these technologies will help us in different ways, and difference technologies embedded in different devices. Some technologies are available in devices in default. And some can be connected. With recent advances in wireless Internet technology , high speed wireless connection are now available on laptops, cell phones ,and other mobile computing devices. paragraph{} Wireless Internet is become most important in today. In education, business, exploration, and govern like all this field use the facility of wireless Internet. The world has been become global. Then the information not limited to a particular place, in this situation wireless internet is the tool to link this all things together. Therefore people should not limited for a place like home or office. They must be able to access the internet at any place where they want. Therefore wireless Internet is very important to todays world. Internet is the most important and valuable topic in today. People use Internet to do their lots of activities. section{History of Wireless Internet.} begin{itemize} item German physicist Heinrich Hertz in his lab designed the primary electromagnetic radio waves in the year 1888. item In the year 1894 using radio waves in Oxford, England was sent by British physicist Sir Oliver Lodge as the first message. item Italian inventor Guglielmo Marcon delivered radio waves diagonally the English Channel in the year 1899. end{itemize} section{New features of the Wireless ISPs} However, modern wireless ISPs are able to provide connection speeds ranging anywhere from 384 Kbps to 2.0 Mbps. That is up to 35 times faster than dialup! One new wireless technology in development as of early 2009 is poised to increase the download speeds of wireless even further. WiMax promises to deliver maximum speeds of up to 7 Mbps to your laptop, your car, your cell phone, and your home. WiMax is only just now becoming available in some U.S. cities, but expect to see it in more locations by the end of the year and throughout 2010. Internet is a wide range of subject. Through the internet what we can do is not limited to the send emails and message activities through your mobiles phones. There are number of operations we can do by using the internet. But the technologies we that we use to access the internet is limit the those activities. To download avideo, share a large file, download streaming media, upload some large amount of data, it is better to having a high speed wireless Internet service Provider. In the present most mobile computers such as laptops comes with the facility to access the internet. It means the devices already have a wireless adapter installed in it. Not only that there are number of computer related devices which can be used to inernet remotely. Those devices have been set up to access the internet in any where the wireless ISP facility have been established. By today there are so many places they provide the facility to access the internet. And most of ISPs give the chance to their customers providing the internet access facility such as 3G, wi-fi in public areas. section{Requirements for a Wireless Internet Connection:} When we need to connect a device to the internet wirelessly, there are need some different equipments and facilities than when connecting using wired connection. To access the internet wirelessly it is good to have following things: begin{itemize} item Some type of mobile computing device, such as an iPhone, PDA, mini-computer, cell phone, or similar item or a laptop computer . item An internal wireless adapter or a USB port for connecting an external adapter. the adapter that you use must be compatible with the specific wireless provider you sign up for and the protocols they use. For example, a Wi-Fi 802.11 adapter. item A high speed, wireless Internet access plan from a provider in your area. item Free sniffer software for locating access at various Hot Spot locations (this software is typically supplied by your wireless Internet service provider). end{itemize} It is important to note that wireless home networking and wireless Internet access outside the home or office are two rather different things. Setting up a wireless LAN in your home should not involve a separate service beyond your current DSL or cable provider. They will typically provide you with all the equipment that you need, such as a wireless router, to establish a wireless LAN in your home at no extra cost. section{WISP Wireless Internet Service Provider} Wireless Internet Service Providers provide the public wireless services. There are number of WISPs available in today. In airports, hotels , computer schools and other public business places are covered with the networks using the wireless internet service providers. WISPs are mostly used to create the Local area networks(LAN). When you use a WISP, you must have the permissions to access it. But some WISPs give the access free. When you use it you must have the clear idea about the security of that WISP. Because there can spread the viruses through that networks. Therefore it will be harmful to your computers. Some WISPs give their service having some contracts, and some time they charge for their service. chapter{wireless Networks} section{What is a Wreless Network?} A wireless network is a kind of network which has interconnections between nodes without using a wire. In this methodology the network is established with the help of electromagnetic waves such as radio waves, LAN connections etc. wireless network is normal same as other network but use the wireless technology to transmit data through the network. There are some advantages uses the wireless network, because the devices within the network can be access within that area at any time anywhere. section{Types of Wireless Networks} subsection{Wireless Local Area Networks (WLAN)} Wireless lan is a wireless local area network which uses radio waves for data transmission between computers of the same network. WLANS allow users in local area such as in a university library get the access to the internet. subsection{Wireless Personal Area Networks (WPAN)} Bluetooth and Infra Red technologies are used for wireless personal Network. These technologies will allow the connectivity of personal devices within an area of 30 feet. Infra Red requires a direct line and the range is less as compared to Bluetooth technology. subsection{Wireless Metropolitan Area Networks (WMAN)} Wireless man is a Metropolitan area network that connects the computerof various local area networks. It could be within a building in the company. section{Wireless Wide Area Networks (WWAN)} WWANs or Wireless Area Networks can be maintained over large areas such as in different cities or between different countries, via multiple satellite systems or antenna sites. The types of system are called 2G systems. chapter{3G Internet} Access the internet using the 3G mobile network is meant by 3G Internet. 3G mobile network can be accessed through a mobile device which can be a mobile phone or PDA. Third generation technology is used by 3G internet, which allows users to access larger amount of data with a higher speeds. When comparing the other technologies which are used to access the internet, 3G technology is in a higher position. There are number of devices which provide the facilities to use 3G technology. section{3G internet vs. regular internet} To access the 3G internet there are some specific devices that are smaller and more compact than regular desktop and laptop computers. Mostly 3G internet is accessed by the mobile phones. Therefore the accessing internet is depend on the mobile phones size and the model. Because the mobile phone has more facilities it is easy to access the web pages to see in their normal sizes. Otherwise the applications interfaces view in smaller size. Mobile networks handle those data, therefore the accessing the internet through the 3G internet is simpler than the regular internet. There are limited download in 3G internet and it depend on the mobile service provider which is selected by you. When we use the wired network to access the internet we can use it within a limited area, but when weuse the 3G internet there has facility to access the intrenet within a wide area which is coverd by the mobile service provider. To acess the 3G internet there only need a mobile phone and the facility to 3G by the service provider. begin{itemize} item Speed of 10Mbps at 10 kilometers with line-of-sight with high throughput. item Easy installation and much faster installation compare to wired networks. item Full support for WMAN services. item Single station can serve hundreds of users. item It is standardized, and same frequency equipments work together. item Lower consumer premises equipment cost. item WiMAX is enabling for number of applications in customer and business because of its quality of service. end{itemize} section{Is the 3G internet right for you?} The main thing with the accessing internet through the mobile is the size of the viewing the web pages. Accessing 3G internet is some time not practical with the size of viewing to fulfil our needs through the 3G internet. There are some advantages as well as disadvantages. Some time the web pages which are viewed in the mobile phones or PDA are simple pages and they contain only the valuable details. At that time users dont need the vaste their time and they can get the information about what they are searched directly and fast. But they can be only less detailed. To watch some video, upload pictures, design tasks they are difficult to do with the 3G internet. But the very important fact is use the 3G internet is available in anywhere the signals available on the selected service providers. Nowadays it is not difficult because the every place covered by the service providers. section{So who will use 3G internet?} paragraph{} There are limited facilities have provided in 3G mobile internet. But it is easy way to access the internet than access the internet through the DSl or cable network. In business, students can use the 3G internet mostly. It would be useful to anyone who has the facility to access the internet anywhere. chapter{WiMAX } section{WiMAX: Broadband Wireless Access} paragraph{} WiMAX stands for Worldwide Interoperability for Microwave Access. WiMAX is the IEEE 802.16 standards-based wireless technology that provides MAN (Metropolitan Area Network) broadband connectivity to access the internet. In a WiMAX is an Air Interface for Fixed Broadband Wireless Access Systems, also known as the IEEE WirelessMAN air interface. As far as 30 miles of area can be covered using the WiMAX-based system by transmitting data. So far, WiMAX can be used for homes and offices communication . section{Wireless Standards} There are some wireless standards have been established by the IEEE. begin{itemize} item IEEE 802.15, also known as Bluetooth, for the Personal Area Network (PAN); item IEEE 802.11, also known as WiFi, for the Local Area Network (LAN); item IEEE 802.16 for the Metropolitan Area Network (MAN), item IEEE 802.20 for the Wide Area Network (WAN). end{itemize} paragraph{} Normally miles are used to measure the WiMAX range and feet are used for the Wifi range. The main thing is that WiFi is focused on a local-area networking (LAN) technology and that WiMAX is a MAN technology. paragraph{} The 802.16d standard of extending 802.16 supports three physical layers . The mandatory PHY mode is 256-point FFT Orthogonal Frequency Division Multiplexing (OFDM). The other two PHY modes are Single Carrier (SC) and 2048 Orthogonal Frequency Division Multiple Access (OFDMA) modes. By the way, the corresponding European standard-the ETSI HiperMAN standard-defines a single PHY mode identical to the 256 OFDM modes in the 802.16d standard. paragraph{} A WiMAX system consists of two parts: begin{itemize} item A WiMAX tower, similar in concept to a cell-phone tower A single WiMAX tower can provide coverage to a very large area as big as 3,000 square miles (~8,000 square km). item A WiMAX receiver The receiver and antenna could be a small box or PCMCIA card, or they could be built into a laptop the way WiFi access is today. end{itemize} paragraph{} There are namy advantages included in WiMAX-based solutions, robust security features, good Quality of Service, and mesh and smart antenna technology that will alow better utilization of the resources. WiMAX-based voice service can work on either traditional Time Division Multiplexed (TDM) voice or IP-based Voice, also known as Voice over IP (VoIP). paragraph{} WiMAX is similer to WiFi but the WiMAX have higher speed than Wi-Fi and would cover a large area by spreading in a long distance than covering from WI-Fi. Therefore using WiMAX large number of users can access the internet. Use the WiMAX than Wi-Fi is better to get more works. chapter{Wi-Fi Wireless Internet} paragraph{} WiFi stands for wireless fidelity and is a popular technology being used by homes, workplaces, mobiles and computer systems world-wide. paragraph{} Using radio waves produce the high speed internet services and network connection can be described in the Wi-Fi internet. This technology mostly used in the business places, universities, and offices. Wi-Fi technology can be used in a limited area. Within that area any can access the internet through a device like laptop which has a wireless adapter. paragraph{} Wi-Fi works using radio frequency, without using any wired connection between sender and the receiver. When we use the Wi-Fi to a network, automatically create a wireless local area network (WLAN). Wi-Fi provide Fast data transfer rate. With transfer speeds up to 54mb. paragraph{} Within the Wi-Fi established area users can move with their computers from one access point to another. The cost for the wired network is can be saved using wireless networks. paragraph{} begin{itemize} item Normally open or un-encrypted as a default setting comes with the WiFi (wireless fidelity) networks. item In order to secure a WiFi, network, connection must distribute with password protected and the device must be configured using a Graphical User Interface or GUI. item Un-encrypted networks are freely accessible and any data can be accessed through these. Therefore the spreading of viruses can be happen. end{itemize} chapter{Other Technologies} section{Bluetooth} subsection{What is Bluetooth?} paragraph{} Bluetooth is one of wireless technology most used in today in the digital devices. That technology is used to access the internet too. Bluetooth technology is use o communicate between various electronics and that technology has been expanding every day. Mostly used in mobiles phones, personal computers, PDA, Laptops, digital camera, MP3 players and other Bluetooth enabled devices. paragraph{} The Bluetooth technology was invented by Ericson in 1994, and after in 1998 that the major mobile phone companies such as Nokia, Ericsson, Intel and Toshiba gathered to promote this technology. Using Bluetooth there can be connected eight devices at a time. Communication can be established hopping channels up to 1600 times per second. Bluetooth wireless technology works by allowing the transmission of signals over short distances between these devices and there by abridge communication and synchronization between these devices. subsection{How it Works} paragraph{} The Bluetooth chip can operate between the frequency band of 2400-2483.5Mhz. Bluetooth is designed to use in area where the wireless communication such as infrared are not working. Between the devices which are use to connect to using the Bluetooth there doesnt need to have a clear path between them for connecting the devices. paragraph{} Bluetooth wireless technology works by allowing the transmission of signals over short distances between these devices and there by abridge communication and synchronization between these devices. section{GPRS} GPRS stands for General Packet Radio Service, and is a protocol for passing data over a mobile phone network. And GPRS use to access the internet through the mobile phones. Even though there is no 3G facility, you can access the internet with having the GPRS facility in your phone. Heres what you need to know about GPRS: begin{itemize} item GPRS replaced dial-up mobile phone Internet access, offering faster browsing of Internet content and email. Its an always on service. item GPRS on a mobile phone doesnt use a phone number to connect; it uses something called an APN (Access Point Name). item For GPRS usage, have to pay for the amount of data you transferred, and not need to pay for your online time per minute. item GPRS has now been largely superseded by faster data network services known as 3G end{itemize} chapter{Conclusion} To access the internet it is easy to use the wireless technology because it can be used in everywhere the signal are available in internet service providers. When we select the technology to access the internet we must consider about the speed, cost, availability of signals, suitability of the needs. According to the tasks we wants to fulfil the technology can be different. When you use the 3G Internet through the mobile phones it is better to consider about the size of viewing. Bluetooth is mostly use to connect phones with the computers than connecting computer to a computer. There are various networks in wireless technology which are related to the different places. begin{thebibliography}{100} bibitem {}Unknown Author. (2002). textit{Wireless Internet Service}. Available: http://www.high-speed-internet-access-guide.com/wireless/. Last accessed 10 June 2010. bibitem {}Unknown . (2008). textit{3G Intrenet}. Available: http://www.broadband-expert.co.uk/3g-internet/. Last accessed 10 June 2010. bibitem {}unknown. (2002). textit{GPRS in the UK}. Available: http://www.filesaveas.com/gprs.html. \ Last accessed 11 June 2010. bibitem {}unknown. (2007). textit{Wireless Network Types}. \ {Available: http://www.networktutorials.info/wireless_networking.html}. Last accessed 27 May 2010. bibitem {}unknown. (2008). textit{How WiMAX Works}. {Available: http://computer.howstuffworks.com/wimax1.htm}. Last accessed 07 June 2010. bibitem {}unknown. (2010). textit{Wi-Fi}. {Available:http://www.webopedia.com/TERM/W/Wi Fi.html}. {Last accessed 03 June 2010}. bibitem {}unknown. (2006). textit{Wireless Network}. {Available:http://www.altiusdirectory.com/Computers/wireless-network.html}. Last accessed 04 June 2010. bibitem {}unknown. (2006). textit{Bluetooth Wireless Technology}. {Available:http://www.altiusdirectory.com/Computers/bluetooth-wireless-technology.html}. Last accessed 07 June 2010. bibitem {}unknown. (2006). textit{Bluetooth Wireless Technology}. {Available:http://www.altiusdirectory.com/Computers/bluetooth-wireless-technology.html}. Last accessed 12 June 2010. bibitem {}unknown. (2006). textit{WiFi How Does It Work?}. \ {Available:http://www.bwif.org/wifi how it works.html}. Last accessed 08 June 2010. bibitem {}unknown. (2005). textit{Different Types of Wireless Network}. \ {Available:http://www.greyfriars.net/gcg/greyweb.nsf/miam/article01}. Last accessed 11 June 2010. bibitem {}unknown. (2010). textit{Introduction to Network Types}. \ {Available:http://compnetworking.about.com/od/basicnetworkingconcepts/a/network types.htm}. \Last accessed 07 June 2010. bibitem {}unknown. (2010). textit{Wireless Networks}. {Available:http://www.topbits.com/wireless-networks}. Last accessed 07 June 2010. bibitem {}unknown. (2010). textit{WISP Wireless Internet Service Provider}. {Available:http://compnetworking.about.com/od/wirelessterms/g/bldef wisp.htm}. \ Last accessed 07 June 2010. bibitem {}Jeff Tyson. (2008). textit{How WAP Works}. \ {Available:http://compnetworking.about.com/gi/o.htm?zi=1/XJ/YazTi=1sdn=compnetworkingcdn=computetm=552f=internet.htmv}. \Last accessed 24 May 2010. end{thebibliography} end{document} end{document}