Saturday, March 21, 2020

Playing Sports Teaches People Lessons About the Life. Essay Example

Playing Sports Teaches People Lessons About the Life. Essay Example Playing Sports Teaches People Lessons About the Life. Essay Playing Sports Teaches People Lessons About the Life. Essay Playing sports teaches people lessons about the life. Nowadays, a large group of people are crazy about doing sports with other zealous fellows. They always keep themselves occupied with all kinds of sports instead of lying in sofa, watching soap operas. I am a loyal advocator to this passionate life style. While possessing a good health, beneficial classes of life are extra gains of doing sports. Doing sports constantly can steel people’s willpower and teach them the lesson of persevering in everyday life no matter how tough the situations are. For instance, Lionel Messi, my favorite football player, no one could believe that he was diagnosed with a growth hormone deficiency and we almost miss a superstar! However, his persistence and intense love for football kept him going on without hesitation and nothing could stop him from becoming an excellent player. Ultimately, the sporting director of Barcelona had been made aware of his talent and led him to a superiorly shining life. Now he has received FIFA World Player of the Year nomination in 2009 at the age of 21. This incident gives me a full understanding of the fact that how unbelievable results sports may bring to people. In addition, sports guide people to respect rivals regardless of the results. Also, no matter how strong you are and maybe your opponent has no chance to win at all, respecting opponents still remains its essential place. In 2010 Africa FIFA World Cup, when North Korea which at the bottom of the ranking list encountered Brazil, which ranks No. 1 in the world. Brazil showed the characteristic of a world-class team. They tried hard as their competitors were equally strong as them and spoke highly of North Korea’s presentation after the game. In sum, sports really enable people to own the quality of respecting opponents, which makes it unique compared to other things. Another vital class we can learn is accepting defeats or victories, it is a fundamental part of competition and it is unavoidable for each participant. That is just the most appealing part of sports. Team members should not blame their partners for anything as long as he puts all his heart into it. Facing failure calmly and embracing success modestly are the experiences of life that sports give us. Considering all the analysis above, we safely come to the conclusion that doing sports indeed benefit us a lot in varied ways. I insist that in the future a large range of people will participate in sports and obtain knowledge of life.

Playing Sports Teaches People Lessons About the Life. Essay Example

Playing Sports Teaches People Lessons About the Life. Essay Example Playing Sports Teaches People Lessons About the Life. Essay Playing Sports Teaches People Lessons About the Life. Essay Playing sports teaches people lessons about the life. Nowadays, a large group of people are crazy about doing sports with other zealous fellows. They always keep themselves occupied with all kinds of sports instead of lying in sofa, watching soap operas. I am a loyal advocator to this passionate life style. While possessing a good health, beneficial classes of life are extra gains of doing sports. Doing sports constantly can steel people’s willpower and teach them the lesson of persevering in everyday life no matter how tough the situations are. For instance, Lionel Messi, my favorite football player, no one could believe that he was diagnosed with a growth hormone deficiency and we almost miss a superstar! However, his persistence and intense love for football kept him going on without hesitation and nothing could stop him from becoming an excellent player. Ultimately, the sporting director of Barcelona had been made aware of his talent and led him to a superiorly shining life. Now he has received FIFA World Player of the Year nomination in 2009 at the age of 21. This incident gives me a full understanding of the fact that how unbelievable results sports may bring to people. In addition, sports guide people to respect rivals regardless of the results. Also, no matter how strong you are and maybe your opponent has no chance to win at all, respecting opponents still remains its essential place. In 2010 Africa FIFA World Cup, when North Korea which at the bottom of the ranking list encountered Brazil, which ranks No. 1 in the world. Brazil showed the characteristic of a world-class team. They tried hard as their competitors were equally strong as them and spoke highly of North Korea’s presentation after the game. In sum, sports really enable people to own the quality of respecting opponents, which makes it unique compared to other things. Another vital class we can learn is accepting defeats or victories, it is a fundamental part of competition and it is unavoidable for each participant. That is just the most appealing part of sports. Team members should not blame their partners for anything as long as he puts all his heart into it. Facing failure calmly and embracing success modestly are the experiences of life that sports give us. Considering all the analysis above, we safely come to the conclusion that doing sports indeed benefit us a lot in varied ways. I insist that in the future a large range of people will participate in sports and obtain knowledge of life.

Playing Sports Teaches People Lessons About the Life. Essay Example

Playing Sports Teaches People Lessons About the Life. Essay Example Playing Sports Teaches People Lessons About the Life. Essay Playing Sports Teaches People Lessons About the Life. Essay Playing sports teaches people lessons about the life. Nowadays, a large group of people are crazy about doing sports with other zealous fellows. They always keep themselves occupied with all kinds of sports instead of lying in sofa, watching soap operas. I am a loyal advocator to this passionate life style. While possessing a good health, beneficial classes of life are extra gains of doing sports. Doing sports constantly can steel people’s willpower and teach them the lesson of persevering in everyday life no matter how tough the situations are. For instance, Lionel Messi, my favorite football player, no one could believe that he was diagnosed with a growth hormone deficiency and we almost miss a superstar! However, his persistence and intense love for football kept him going on without hesitation and nothing could stop him from becoming an excellent player. Ultimately, the sporting director of Barcelona had been made aware of his talent and led him to a superiorly shining life. Now he has received FIFA World Player of the Year nomination in 2009 at the age of 21. This incident gives me a full understanding of the fact that how unbelievable results sports may bring to people. In addition, sports guide people to respect rivals regardless of the results. Also, no matter how strong you are and maybe your opponent has no chance to win at all, respecting opponents still remains its essential place. In 2010 Africa FIFA World Cup, when North Korea which at the bottom of the ranking list encountered Brazil, which ranks No. 1 in the world. Brazil showed the characteristic of a world-class team. They tried hard as their competitors were equally strong as them and spoke highly of North Korea’s presentation after the game. In sum, sports really enable people to own the quality of respecting opponents, which makes it unique compared to other things. Another vital class we can learn is accepting defeats or victories, it is a fundamental part of competition and it is unavoidable for each participant. That is just the most appealing part of sports. Team members should not blame their partners for anything as long as he puts all his heart into it. Facing failure calmly and embracing success modestly are the experiences of life that sports give us. Considering all the analysis above, we safely come to the conclusion that doing sports indeed benefit us a lot in varied ways. I insist that in the future a large range of people will participate in sports and obtain knowledge of life.

Wednesday, March 4, 2020

Timeline of the Mexican-American War

Timeline of the Mexican-American War The Mexican-American War (1846–1848) was a brutal conflict between neighbors largely sparked by the US annexation of Texas and their desire to take western lands such as California away from Mexico. The war lasted about two years in total and resulted in a victory for the Americans, who benefited greatly from the generous terms of the peace treaty following the war. Here are some of the more important dates of this conflict. 1821 Mexico gains independence from Spain and difficult and chaotic years follow. 1835 Settlers in Texas revolt and fight for independence from Mexico. October 2: Hostilities between Texas and Mexico commence with the Battle of Gonzales. October 28: The Battle of Concepcion takes place in San Antonio. 1836 March 6: The Mexican army overruns the defenders at the Battle of the Alamo, which becomes a rallying cry for Texas independence. March 27: Texan prisoners are slaughtered at the Goliad Massacre. April 21: Texas gains independence from Mexico at the Battle of San Jacinto. 1844 On September 12, Antonio Là ³pez de Santa Anna  is deposed as President of Mexico. He goes into exile. 1845 March 1: President John Tyler signs the official proposal of statehood for Texas. Mexican leaders warn that annexing Texas could lead to war. July 4: Texas legislators agree to annexation. July 25: General Zachary Taylor and his army arrive in Corpus Christi, Texas. December 6: John Slidell is sent to Mexico to offer $30 million for California, but his efforts are rebuffed. 1846 January 2: Mariano Paredes becomes President of Mexico.March 28: General Taylor reaches the Rio Grande near Matamoros.April 12: John Riley deserts and joins the Mexican army. Because he did so before war was officially declared, he could not legally be executed later when he was captured.April 23: Mexico declares defensive war against the United States: it would defend its territories under attack but not take the offensive.April 25: Captain Seth Thorntons small reconnaissance force is ambushed near Brownsville: this small skirmish would be the spark that kicked off the war.May 3–9: Mexico lays siege to Fort Texas (later renamed Fort Brown).May 8: Battle of Palo Alto is the first major battle of the war.May 9: Battle of Resaca de la Palma takes place, which results in Mexican army being forced out of Texas.May 13: US Congress declares war on Mexico.May: The St. Patricks Battalion is organized in Mexico, led by John Riley. It consisted largely of Irish-born deserters from the U S army, but there are also men of other nationalities. It would become one of Mexicos best fighting forces in the war. June 16: Colonel Stephen Kearny and his army leave Fort Leavenworth. They will invade New Mexico and California.July 4: American settlers in California declare the  Bear Flag Republic in Sonoma. The independent republic of California only lasted a few weeks before American forces occupied the area.July 27: Mexican President Paredes leaves Mexico City to deal with a revolt in Guadalajara. He leaves Nicols Bravo in charge.August 4: Mexican President Paredes is deposed by General Mariano Salas as chief executive of Mexico; Salas re-institutes federalism.August 13: Commodore Robert F. Stockton occupies Los Angeles, California with naval forces.August 16: Antonio Lopez de Santa Anna returns to Mexico from exile. The Americans, hoping he would promote a peace accord, had let him back in. He quickly turned on the Americans, stepping up to lead the defense of Mexico from the invaders.August 18: Kearny occupies Santa Fe, New Mexico.September 20–24: The Siege of Monterrey: Taylor capt ures the Mexican city of Monterrey. November 19: US President James K. Polk names Winfield Scott as leader of an  invasion force. Major General Scott was  a highly decorated veteran of the War of 1812 and the highest-ranking US military officer.November 23: Scott leaves Washington for Texas.December 6: Mexican Congress names Santa Anna President.December 12: Kearny occupies San Diego.December 24: Mexican General/President Mariano Salas turns over power to Santa Annas Vice-president, Valentà ­n Gà ³mez Farà ­as. 1847 February 22–23: The Battle of Buena Vista is the last major battle in the northern theater. The Americans will hold the ground they gained until the end of the war, but not advance any farther.March 9: Scott and his army land unopposed near Veracruz.March 29: Veracruz falls to Scotts army. With Veracruz under control, Scott has access to resupply from the USA.February 26: Five Mexican National Guard units (the so-called polkos) refuse to mobilize, rebelling against President Santa Anna and Vice-President Gà ³mez Farà ­as. They demand repeal of a law forcing a loan from the Catholic Church to the government.February 28: Battle of Rio Sacramento near Chihuahua.March 2: Alexander Doniphan and his army occupy Chihuahua.March 21: Santa Anna returns to Mexico City, takes control of the government and reaches an agreement with the rebellious polkos soldiers.April 2: Santa Anna leaves to fight Scott. He leaves Pedro Marà ­a Anaya in the Presidency.April 18: Scott defeats Santa Anna at the Battle of Cerro Gordo. May 14: Nicholas Trist, charged with eventually creating a treaty, arrives at Jalapa.May 20: Santa Anna returns to Mexico City, assumes the presidency once more.May 28: Scott occupies Puebla.August 20: The Battle of Contreras and the Battle of Churubusco open the way for the Americans to attack Mexico City. Most of the St. Patricks Battalion is killed or captured.August 23: Court-martial of members of St. Patricks Battalion at Tacubaya.August 24: Armistice is declared between US and Mexico. It would only last about two weeks.August 26: Court-martial of members of St. Patricks Battalion at San Angel.September 6: Armistice breaks down. Scott accuses Mexicans of breaking the terms and using the time on defenses.September 8: Battle of Molino del Rey.September 10: Sixteen members of St. Patricks Battalion are hanged at San Angel.September 11: Four members of St. Patricks Battalion are hanged at Mixcoac.September 13: Battle of Chapultepec: Americans storm gates into Mexico City. Thirty mem bers of St. Patricks Battalion hanged within sight of the castle. September 14: Santa Anna moves his troops out of Mexico City. General Scott occupies the city.September 16: Santa Anna is relieved of command. The Mexican government attempts to re-group in Querà ©taro. Manuel de la Peà ±a y Peà ±a is named President.September 17: Polk sends recall order to Trist. He receives it on November 16 but decides to remain and finish the treaty. 1848 February 2: Trist and Mexican diplomats agree on the  Treaty of Guadalupe Hidalgo.April: Santa Anna escapes from Mexico and goes into exile in Jamaica.March 10: The Treaty of Guadalupe Hidalgo is ratified by the USA.May 13: Mexican President Manuel de la Peà ±a y Peà ±a resigns. General Josà © Joaquà ­n de Herrera is named to replace him.May 30: The Mexican Congress ratifies the treaty.July 15: The last US troops depart Mexico from Veracruz. Sources and Further Reading Foos, Paul. A Short, Offhand, Killing Affair: Soldiers and Social Conflict During the Mexican-American War. Chapel Hill: University of North Carolina Press, 2002.Guardino, Peter. The Dead March: A History of the Mexican-American War. Cambridge: Harvard University Press, 2017.McCaffrey, James M. Army of Manifest Destiny: The American Soldier in the Mexican War, 1846-1848. New York: New York University Press, 1992.

Monday, February 17, 2020

Jury System of UK Essay Example | Topics and Well Written Essays - 2000 words

Jury System of UK - Essay Example But considering the complexity of many trials today - especially with the advances made in forensic science and the complexity of many civil trials, severe doubts regarding the efficacy of the jury system have been made. First of all, it is correct to consider whether a jury can in fact be "objective", especially when there has been a lot of pretrial publicity. Many studies have documented adverse effects of pre-trial publicity on juror decision making (Linz & Penrod, 1992; Otto, Penrod & Dexter, 1994; Ogloff & Vidmar, 1994; Studebaker & Penrod, 1997). These studies point out that jurors do not exist in a vacuum and are likely to have some opinion of a well-known case before they enter the courtroom. In many ways this can be linked to the ideas of groupthink. Just as the jury may be influenced by what the public outside supposedly 'thinks' regarding a case - usually influenced by the media - so as a whole they may come to conclusions based upon a kind of consensus feeling rather than rational thought. This type of situation has been called "groupthink". Janis Irving has created a perhaps more sober definition in which she describes groupthink as "a mode of thinking that people engage in when they are deeply involved in a cohesive in-group, when the members' strivings for unanimity override their motivation to realistically appraise alternative courses of action" (Irving, 1972). There are various interpretations and analyses of the practical results of groupthink that have occurred over the years. In the original article in which the term groupthink was postulated, Whyte described group think in the following way: We are not talking about mere instinctive conformity - it is, after all, a perennial failing of all mankind. What we are talking about is a rationalized conformity - an open, articulate philosophy which holds that group values are not only expedient but right and good as well. (Whyte, 1952) (emphasis added) One way of improving jury decisions, and thus making them more reliable, would be to actively educate juries on the dangers of groupthink before a trial starts. Just as their knowledge of the case, predisposition towards certain verdicts, experience of this type of crime/action are often tested through the process of voir-dire, so juries could be taught in a short workshop on the problems of groupthink and how to avoid them before the trial begins. There are various interpretations and analyses of the practical results of groupthink that have occurred over the years. Some, such as McCauley (1987) have concentrated on some of the more ominous sides of the tendency in which individuals may be swayed into ways of behaving that they would not otherwise consider. For example, extreme cases of groupthink can often be found within various religious cults, sometimes leading to disastrous and tragic consequences such as the mass suicides at Jonestown or of the Heaven's Gate group. These are thankfully rare examples of an extreme example of groupthink in which what may be a powerful good is turned into a destructive negativity because of the pathological nature of those who are leading the groupthink. Other cases of groupthink have been found within organizations of some of the most intellectual and highly educated people (who would not be expected to be easy 'followers' as were the mostly uneducated

Monday, February 3, 2020

Discuss the relationship between nationalist and anti-nationalist Essay

Discuss the relationship between nationalist and anti-nationalist memories - Essay Example of historians, journalists, and demagogues, NGOs’ ad statesmen in invoking the past in a selective or all inclusive manner is indeed crucial in shaping the public discourse over what the past means. Since the topic of the paper is about exploring the connections between nationalist and antinationalist memories, this introduction is to set the context for the paper by alluding to the myriad ways in which the past can both be a source of inspiration as well as a source of conflict. Hence, memories can be nationalistic for a sect or ethnic group and the same memories can be antinationalistic for another sect or ethnic group. It is only when the shared memories lend themselves to commonality and objective interpretation can there being true peace in the world (Wimmer, 28). The Balkans is often cited by researchers for the prevalence of memories that are nationalistic and antinationalistic. The reason for choosing the Balkans by these researchers can be fathomed from the fact that the Balkans was a place where there were instances of the collective memory of a shared experience giving way to fractious and fissiparous memories mainly due to the internecine civil strife that plagued the region in the 1990’s. The Balkans and the various ethnicities present there are representative of the way in which fragmented memories often take hold when a nation composed of different ethnicities and bound together by slender threads of commonalities give way to strife when the threads cannot hold any more. The way in which some citizens of the erstwhile Yugoslavia remember fondly the times under Tito and the others speak optimistically about the future are emblematic of the memory tricks that the mind can play on people who had a shared past but are now living in divided and fragmented ways (Todorova, 13). Similar is the case with the Partition of India following the exit of the British from Imperial India following World War Two. Once the British departed, there was an outbreak

Sunday, January 26, 2020

Future Trends In 4g Networks Information Technology Essay

Future Trends In 4g Networks Information Technology Essay Mobile communication is continuously one of the hottest areas that are developing at a booming speed, with advanced techniques emerging in all the fields of mobile and wireless communications. Current times are just the beginning for deploying 3G mobile communication systems, hike research on the next generation of mobile communications, 4G Wireless and mobile networks begin to pave the way for the future. This paper studies the visions of 4G from a technical perspective. After a brief review on the development history and status of mobile communications and related 4G perspectives, present an overall 4G feature framework based on the kernel concept of integration, in hitch to key features (diversity and adaptability) of the three targets (terminals, networks, and applications) are described in detail. The concepts of both external and internal diversity of each target are defined to illustrate the causes and solutions of the adaptable feature. Then, along the entire 4G domain, each feature in the framework is deeply discussed from a technical standpoint, in which promising techniques and possible research issues for sufficient support of adaptability are also proposed. Finally, a short summary on 4G visions is presented as a continuum of features in the development of the mobile communications world. In this technology, we go in for a new motive so as to help the deaf people to communicate as efficiently as the normal human being. This could be well achieved by means of introducing new software called the voice to text converter (VoTC). INTRODUCTION: Mobile communications and wireless networks are developing at an astounding speed, with evidences of significant growth in the areas of mobile subscribers and terminals, mobile and wireless access networks, and mobile services and applications. The present time is just right to start the research of 4G mobile communications because of à ¢Ã¢â€š ¬Ã‚ ¢ Possibility, according to the historical indication of a generation revolution once a decade, and now we are near the end of 3G standardization phase and the beginning of 3G deployment. à ¢Ã¢â€š ¬Ã‚ ¢ Necessity: according to 3G goals, 3G is necessary but not sufficient to the mobile communication strategy, in which many problems are only partly solved and there are still many problems left to be solved in the next generation, i.e. 4G. There is plenty of related research on the next generation mobile communications. However, most of the ongoing research can be classified into two different classes: 1) Many of the related 4G research focuses mainly on one specific technical area, such as distributed computing, mobile agents, multimedia services, or radio air interfaces, etc. 2) Some pieces of research are interested mainly in 4G scenarios from the standpoints of service provider or user, or a market analyst, from a less or non-technical viewpoint. The difference of this paper to other related pieces of research is that we are going to present overall visions on the features of 4G mobile communications, based on a feature framework and provide detailed proposals to respective support techniques and research topics. This paper is organized as follows. The next section consists of a brief review in the development history and status of mobile communications, together with an analysis of the problems of 3G and developing trends summarized. The following text is comprised with, after a survey of related 4G perspectives, we present an overall 4G feature framework based on the key concept of integration, and then describe each of the two features (diversity and adaptability) of the three relevant targets (terminals, networks, and applications) in detail. The heart of this paper deeply discusses the adaptability feature of each three targets in the entire 4G domain from a technical standpoint, in which promising techniques and possible research issues are proposed. The skeleton of this paper figures out a short summary on 4G visions. The declining part concludes the paper. A. 4G Feat urge Framework We summarize our proposal of 4G features with one sentence, or even more simply, with one word: integration, i.e. seamless integration of terminals, networks, and applications (together with users). A more detailed analysis and explanation of the definition is as follows. 1) The discussion domain includes three relevant targets, i.e. terminals, networks, and applications. Out of the 4G domain, the user is the only target. 2) The kernel word of the definition is so-called integration, which means the convergence of first the three different targets; second the various modes of each target, which lead to the feature of diversity. 3) The modifier seamless, which means the character and requirement of integration, implies the support of the adaptability feature between the three targets, each one of which is largely miscellaneous. . In order to clarify the concept, we define two kinds of diversity: external diversity and internal diversity. à ¢Ã¢â€š ¬Ã‚ ¢ External diversity is outside the target, which brings along the demand of the adaptability feature to all targets. à ¢Ã¢â€š ¬Ã‚ ¢ Internal diversity is inside each of the targets, and it acts as the solution for adaptability requirements. In short, the need for adaptability is caused by external diversity, and it is solved by internal diversity. Here both the external and internal diversity of users are the cause of all adaptability requirements, which implies that the user is out of the technical domain of 4G visions. The two main features. I.e. diversity and adaptability of the three targets terminal, network, and application are described in detail in the next section. B. 4G Feature Description 1) User Diversity: The external diversity of users, i.e. people in different situations, includes e.g. culture, educational background, economic capability, physical property, personal preference, etc. The internal diversity of users, i.e. people with different interfaces, include e.g. vision, hearing, speech, touch sense, hands and fingers, body, etc. Note that as for users, both their external and internal diversity are to be adapted by the other two targets: terminal and application. Moreover, for adapting the two kinds of user diversity, both the external and internal diversity of terminals and applications are the solution. 2) Terminal Diversity and Adaptability: The terminals external diversities are the differences of terminals in both static and mobile attributes. Static attributes include e.g. functionality, weight, size, battery life, human interface, antenna, processing capability, security, style, and cost. Mobile attributes include dynamic attributes of both temporal and spatial features. The former category contains e.g. moving speed and acceleration, along with stationary, pedestrian or vehicular qualities, while the latter is connected to spatial range, e.g. indoors, on-campus, in urban and rural environments, and also direction. The internal diversity of terminals means that one terminal may integrate multiple functions, modes, interfaces, flexibilities, etc. There are three targets for terminal adaptability. For users, it includes the provision of different terminals to satisfy different users and an individual users various requirements. As for applications, we hope that miscellaneous services can be delivered to one single terminal. When networks are concerned, a single terminal can reach a wide range of networks despite of location and mobile rate. 3) Network Diversity and Adaptability: The external diversity of networks is obvious. Internet is assorted by nature, while wireless networks keep the same property. For instance air interfaces can integrate all kinds of standards and work on different frequencies. Moreover, multiple operators deploy networks with multiple standards and protocols. The internal diversity of networks means that one network can interconnect with other different networks and transfer various kinds of loads, e.g. cellular systems with various coverage. Three targets are related to network adaptability. In reference to terminals, network adaptability aims to make multiform mobile devices with a wide range of moving speeds and mobile areas connectable to wireless networks. For applications, there is a requirement that any type and/or quality of service can be delivered through diverse fixed and mobile networks in the most suitable and efficient way. The target for networks themselves is to make it easy to build a 40 feature framework in order to be transmitted correctly and efficiently. We present the support techniques for each of the above features in the next forthcoming text. D. 4G TECHNICAL PERSPECTIVE It is obvious that 4G, just like all the previous generations, is driven not only by technology, but also by market requirements. This section mainly discusses, from a more technical perspective, possible topics for research and promising techniques of 4G, and focuses mainly on those techniques that give support to the main feature of adaptability by internal diversity of targets in the 4G domain. Fig. 2 gives an illustration of the discussion domain of 4G. Technical details are ignored here because of the length limitation of the paper. The various possibilities of competition among services are illustrated above. A.Terminals In order to adapt to the diverse applications and networks, together with the various requirements of users, the terminal domain must possess both internal and external diversity. Support techniques of the field may include the following: 1) User interfaces of terminals vary from traditional keyboard, display, and tablet, to new interfaces based on Lasers Speech, touch, vision, soft buttons, etc. This will be common at a time when one terminal has multiple user interfaces. 2) Adaptive techniques such as smart antennas, software radio, and smart transceivers, enhance interoperability through simultaneous support of several radio interfaces in a single terminal. This makes a terminal roam able across any air interface standard and connectable to any wireless access point by exchanging configuration software. These approaches can also be used on wireless access points as an advanced smart base station. 3) Terminals will be aware of location and context, often based on some wireless low power sensors that are human- sensitive and/or environment-sensitive in order to monitor and interact with the physical world to report the human and/or environmental factors. The advances in this area have been used in e.g. wearable computers as a novel terminal type. 4) An intelligent terminal is able to dynamically improve its processing capability in order to contain various services. Some function modules can even be downloaded to a terminal when needed. B. Networks More advances in networks are needed to keep pace with the rapidly changing terminals and applications, as follows: 1) Smart antenna, software radio, together with advanced base station are the key techniques to achieve adaptability of wireless access points to diverse terminals, i.e. to make radio systems and air networks re-configurable. 2) Hierarchical and ubiquitous as well as overlay cellular systems, including Pico cell, micro cell, macro cell, and mage cell ones, implement seamless network interconnection of both symmetric and asymmetric nature, and seamless terminal handoff of both horizontal and vertical levels respectively. 3) Network layer hierarchical mobility management based on Mobile IPv6 and Cellular make networks portable and adaptable of self-deployed wireless networks to introduce this concept IP brings quick and seamless handoff to terminals. The Mobile IPv6 also presents a great contribution to the adaptability of heterogeneous networks. 4) Ad hoc wireless networks are a kind, and thus dynamically share unlicensed radio spectrum 4G Mobile Communications 5) Network reconfiguration can be obtained by the reconfiguration of protocol stacks and programmability of network nodes. Thus, it can adapt dynamically to the changing channel conditions and low or high data rate users. 6) Miscellaneous services can be delivered through a mixture of transmission networks including unicast, attribute, importance, bandwidth demand, or data stream type, multiple levels of Quos can be defined for various services. multicast, and broadcast ones. According to the service types, e.g. real-time 7) Network resource can be dynamically allocated to cope with varying traffic load, channel condition, and service environment. Traffic conditions will be dynamically monitored and controlled via techniques such as distributed and decentralized control of network functionalities. C. Applications Adaptability will be one of the basic requirements to the development and delivery of new mobile services. Promising techniques and possible topics may include: 1) Mobile application should refer to a users profile so that it can be delivered in a way most preferred by the subscriber, such as context-based personalized services. This also brings the applications with adaptability to terminals that are moving in varying locations and speeds. Micro-sensors and GPS receivers are the main driven techniques. 2) Techniques such as adaptive multimedia and unified messaging take the terminal characteristics into account and ensure that the service can be received and run on a terminal with the most suitable form to the host type. 3) Intelligent mobile software agent is a common technique to all of the three targets, which act as a platform for service development, delivery, and auto-configuration. 4) Applications can negotiate with networks so that they can be transferred with the most efficient channel, e.g. indoor networks or WLAN or cellular systems in a wide area. Services will be tailor able in order to fit the different network environments and the varying traffic conditions. 5) Services and applications can also be smoothly delivered across a multiple domain of operators and service providers. 4G VISIONS SUMMARY We present Table 2 as a summary of the discussion above, which is a continuum of Table 1 with visions of 4G features. CONCLUSION This paper presents 4G visions from a technical perspective. After a brief review of the history and status of mobile communications, we propose a 4G feature framework, in which features of 4G mobile communications are defined. The framework is based on the key concept of integration, and it has the following characteristics: 1) Targets in the framework include users, terminals, networks, and applications, which compass the entire technical domain and operating environment of 4G. 2) Core features of 4G are described as diversity and adaptability of the targets, leading to seamless integration. 3) The feature of diversity includes both external and internal diversity, in which adaptability is caused by external diversity and is solved by internal diversity. Technical perspectives are presented for each of the features in the paper, in. which also some promising techniques and possible research issues of 4G are introduced. The proposed framework provides a layout view on future communication systems, and challenging research topics are figured for guiding systematic research of 4G 4G VISIONS SUMMRY Property 4G Starting Time 2010-2012 . Driven Technique Intelligent-software Auto configuration Representative Standard OFDM, UWB Radio Frequency (HZ) 3G-5G Bandwidth (bps) IOM-20M Multi-address Technique FDMA, TDMA, CDMA Cellular coverage Mini area Core networks All-IP networks