Tuesday, May 5, 2020
Faculty of Journalism and Mass Communication - MyAssignmenthelp
Question: Discuss about the Faculty of Journalism and Mass Communication. Answer: Introduction This report is prepared on the topic-effective communication and it is an important point as through effective communication message can be delivered by anyone and can be induced and message can be delivered to other to inform them. Importance is given to the communication skills and the skills must be improved at a better level so this will help in personal and professional. By this process, communication silks can be improved. In addition to this by the support of five diagnostic tools analysis the communication skills and also try to found the two error by which the progress of the communication skills are limit and the due to this reasons not having the confidence while giving the presentations and the interviews and due to this not having the confidence of express the thoughts. In addition to this with the help of literature review, it gives the full knowledge so with the support of the knowledge communication skills can be improved. In this report with the help of action plan, some actions can occur such as taking the short course, with the help of mentor communication skills can be improved and by reading the plans. In this report, we will discuss the diagnostic tools such as a - interview skills checklist, Assertiveness questionnaires, Johari window, communication style questionnaire and the interpersonal commutation; with the help of these tools, communication skills can be examined. In addition to this method can be tough for the communication skills related the progress of my strengths and weakness. In the Johari window, different types of communication skills can be directly used. By analysing the communication skills through this technique, I evaluated that I have a better understanding of the verbal and non-verbal communication(Solomon, 2012). Some of the areas are hidden which can be easily known to us and not for others such as having the sharp ability for the emotions based talk that is in their tone. In the blind area quadrant, condition the communication skills, some of these which of not aware of it and the others also not aware of this such as having the capacity of decode the nonv erbal prompt. In this quadrant some of the aspects are unknown and it needs the better skills to improve the communication with the help of the cultural group. In this, the questions raised by this only the communication style of the individual can be improved; and this method is more suitable. In this having the score of 9 out of 18 it makes the leading style. As, some of the people which are amiable have examined themselves such as dependable, agreeable, supportive and respectful by the only individuals can make the concentration in their present( Shultz, 2016). The Amiable people such as me and others may involve personal, friendly, orderly and relaxed by this if an individual may get frustrated or may be confused or not communicate easily in these formal setting such as presentations and interviews. In context to amiable communication skills, the model of this may be not so impressive at a time, it also needs an accurate and up to date work and even the good listener also become harmful. I this Dominant style matches by this only individual can measure the performance. In this report, another method is assertiveness questionnaires this method is mostly used for examining the communication skills of the individual skills. In this scoring, the points 12 out of 15 it may be the passive attitude scale of individual one. In this having any pressure then also the individual may not become the rudely(Russell Cohn, 2012). As a result of it, this type of attitude restricts the valuable the communication skills this mainly useful when while giving the presentation in groups or while communicating with the seniors this method is very effective. Another method is Interpersonal communication it is the most important point in which it noticed that how individual communicated with others. In this, the scoring score of the individual is 71 out of the 90points. By this scoring rate, it can be assumed that how the individual is capable of being a communicator(O'Toole, 2016). The soring rate of 71 is also better an individual has to pay attention to the interpersonal communication skills and also needs the more improvements in their skills. In this training is must need while improving the communication skills. In this Interview skills checklist is a diagnostic tool by which only individual skills can be features at the time of interviews. In addition to this with the help of these diagnostic tools, it is a major aspect it helps in finding out the stressed and the nervousness while facing the interviews even the individual prepared well for the interviews. In this individual may be getting nervous while giving the answers to the qu estions asked in the interviews and even having the full preparation at the time of interview due to this individual may get confused while facing the interviews. In this with the help of these tools individual may solve their issues of communication skills such as difficulties face while expressing their ideas while giving the professional interviews and the presentations even they may be nervous and panic(Barker, 2016). Another reason is the not having them so much confidence while presenting the presentation and also in interviews. In this not having them so much confidence individual has suffered recently while facing the interview. Hai resort located in Hoi an, in Vietnam this is my recent experienced in last year. A call came for an interview even while facing the interview no eye-contact is there also giving the wrong answer to the question asked because of the nervousness and then also clear the interview. In addition to this, the five diagnostic tools revealed the difficulties while facing the interviews is not properly expressing the thoughts or ideas and not having them so much confidence while giving the presentations the result of it turn into the failure. In this by giving the example this problem can be solved out due to not having the confidence is point out in the interview skills checklist reason behind this is no thoughts come out during the interviews due to hurry. Another issue is a problem of communication with other and this problem is solved out by the assertiveness assessments which are known as assertiveness attitude(Hakim, 2016). In this Amiable is not the correct method for controlling the situation no need of rudely. Lack of confidence when communicating others shows the assertiveness attitude such as amicable. Literature Review The most common problem is of effective communication is not having the proper conversation with others persons is due the lack of confidence and also due to language problem, not having ideas to express the thoughts, fear, not having any objectives, nervousness and planning etc. due to these aspects it leads to not having the proper communication skills. In this passive communication, method thoughts are not clearly expressed. In this by using the assertive communication skills can be improved the skills. In this with the help of assertive communication skills can be improved and the individual can easily make the conversations with the parties or with the groups(Kuhnke, 2012). This skill is straightforward while delivering the message. Assertive communication skills method can be used to solve out the issue related to not able to express their ideas and thought while dealing with the parties. The important aspects of the having a good communication are practicing of ideas and thoug hts and make the plans of meetings and also make the plan before the conversation in professional. In this Assertive communication skills is the method which is accepted by the individual and by the others so that proper communications can take place( Northcote, Maria, Gosselin, Kevin P., 2016). This type of attitude is mainly defined as it is open and honest in these peoples easily and with trust can views their thoughts. In this, with the help of this attitude, it can force the people to make a conversation with other and improve the communication while listening. In these skills is very helpful in achieving the objectives with having the improved communication skills. Assertive communication is a process which is defined by the ideas and the thoughts of the members should be clear and make easy to understand by everyone and also clearly defined the message. In this, the conversation should be in good pattern and importance one. The conversation must be fully developed and so that it can easily impress anybody(Kolb, 2014). The quality of interpersonal skills must be meaningful. In this individual have to pay attention that the ideas delivering must be effective full and impress the parties. With the help of skills requirements of the party can be known. In this Interpersonal skills improve only when the communication skills are an effective one. In this relationship can be maintained by using the Interpersonal skills. The best method to make your interpersonal skills more useful by considering that how the other people behave. In addition to this, an individual must have the knowledge of communicating with other people in a proper way this process is known as active listening. In these skills many different skills are explained: -Mentor gives the facility of training to people. -Communications: developed the meaningful ideas for the verbal and non-verbal(Kolb, 2014). -Leadership- Individual has the quality of leadership and having the leadership quality to communicate with others. -Problem-solving: Having the quality of solving the problem such as business and group problem. -Negotiations: Having the agreement when the difference in ideas. -Empathy: In this chance is giving to individual in company, -Teamwork: Work together for achieving the goals. Interpersonal communication is developing day to day the reason behind this is that individual solving their problem of lack of confidence while facing the interviews and presentations and also taking the help of communicators and also improving the skills during communications. In these interpersonal skills, knowledge attracts the audience and it can be dangerous for at a time. In these interpersonal skills is used for cheering the people to understand the process of it(Cicinelli , 2013). The major role is to understand the verbal and non-verbal process so that this helps in improving the presentations and interviews and important is that while giving the presentations must be understandable to parties having the meaningful presentations in front of parties. In this, it has been mention that should have the confidence while having the conversation with the audience and communicators should have the confidence of what message they are giving must be easily understood by the audience(Barker, 2016). Some errors can be observed during the communications like a hesitation is known as the level of anxiety this error occurs during the communication with others. In this communication apprehension method is for the bad communication in the interviews and presentations. This happens because of the level of anxiety. In addition to this, the most important tool is oral presentations it is the toughest process it occurs due to not having the confidence while speaking in front of others as a result of it decrease the efficiency of speaking. Through studying anxiety factor, it can be stated that anxiety occurs when not having the confidence. So the individual must pay attention to developing the confidence and also prepare himself for facing the interviews and presentations. Through communications skills, the requirements of the audience can be analysed and understood and then according to the needs of audience presentations can be presented(Cicinelli , 2013). The role of communicators in communication skill is that they convince, notify, and try to motivate the audience and instruct them by developing the skills. In this, while facing the interviews or presentations, proper preparation must be done and it becomes difficult for building the confidence and also confidence that the message delivery to the audience must be meaningful. In addition to this, sometimes it also becomes tough while doing research on the same company where going for interviews but this factor will become the right point to build the confidence while giving the interviews. In addition to this, it is very important to fight with the anxiety factor. Strategies are required to manage the anxiety k while facing the interviews and presenting the presentations. This factor helps in ensuring and also examining the level of confidence while giving the presentations and the correct message should be delivered to the audience(Hargie, 2016). In addition to this, it is very necessary to read the whole topic very carefully and then also analysis the every point regarding the presentations so by these tactics it helps in building the confidence by this only meaningful message will be delivered during the presentations. In this, the main aspect is to understand the question clearly while giving the interviews and then replied the answer with a fresh mind and with lots of confidence and the answer given must be meaningful and correct(West, 2010). Action Plan In this action plan is used for earning the knowledge in context to communication skills and also to improve the skills. Through this activities communication skills can be improved by undertaking practices such as- short course from recognized institutes, reads the books and article and the mentoring from CQU(Angelo, 2014). Beside this it includes the area which is linked with the measurement activities is also include the action plan. In this report measurement and evaluation complete when the activities are done. In this with the help of measurement for having the improvement in the communication skills some activities will be practiced: Activities Description Time period for completing the activity Measurement of completion Undertaking short courses Short-term courses are the boon for gaining and increasing knowledge. These courses help in sharpening individuals mind, thinking ability etc. By these courses, an individual acquires the perfection in particular field in less time compared to full-time courses provided by the universities( Kurucz, Wheeler, A, 2013). These courses are the important tools for imparting effective skills at less time. Hence the short term courses will be undertaken, through: Australia Institute of Management for effective communication Training Institute Queensland University of Technology`s 2 to 3 months Measurement of the practices which will be carried out to develop the communication skills will be done through a communication assessment test(Cicinelli , 2013). All the achievements during the practices of activities will be carried out through a KWL chart. Reading plan In order to develop the skills of communication- Articles and book will be read. Such as- Improve your communication skills written by Alan Barker in the year 2016. Two to Five months Personal Journal Personal journal will be kept to record the main points learned during the course and by reading the books and articles 2 to 4 month Mentor The communication skills will also be learned through a mentor who is going to be approached through CQU. Support of mentor will help in aligning the professional communication skills with requirements of the corporate world. 1 to 3 month References Kurucz, E. C., Wheeler, D., A, . (2013). Reconstructing Value: Leadership Skills for a Sustainable World. University of Toronto Press. Moss, C., Brookhart, . (2012). Learning Targets. ASCD. Northcote, Maria, Gosselin, Kevin P. (2016). Handbook of Research on Humanizing the Distance Learning Experience. IGI Global. Shultz, G. (2016). Learning from Experience. Hoover Press. . Adair, J. (2013). Develop Your Leadership Skills. Kogan Page Publishers. Angelo, G. (2014). The 7 Effective Communication Skills. Seisnama. Barker, A. (2016). Improve Your Communication Skills. Kogan Page Publishers. Cenere, P., Gill, R. (2015). Communication Skills for Business Professionals. Cambridge University Press. Cicinelli , A. (2013). Communication Styles. Academic achievement. Davies, S. (2014). Johari's Window. Silverwood Books Limited. Goldberg, D. (2014). People-Centric Skills. John Wiley Sons. Hakim, Y. E. (2016). The Importance of Engagement in the Learning Experience. Retrieved 2017, from https://www.citethisforme.com/blog/2016/02/01/the-importance-of-engagement-in-the-learning-experience Hargie, O. (2016). Skilled Interpersonal Communication. Taylor Francis. Kolb, D. A. (2014). Experiential Learning. FT Press. Kuhnke, E. (2012). Communication Skills For Dummies. John Wiley Sons. O'Toole, G. (2016). Communication - eBook. Elsevier Health Sciences. Roongpiti, J. (2010). Motivation Theories. Faculty of Journalism and Mass Communication. Russell, J., Cohn, R. (2012). Johari Window. Book on Diamond. Solomon, D. (2012). Interpersonal Communication. Routledge. West, R. (2010). Understanding Interpersonal Communication. Cengage Learning.
Saturday, April 11, 2020
Sample Essay About When I Heard the Learn Astronomer
Sample Essay About When I Heard the Learn AstronomerIf you are looking for a sample essay about when I heard the learn astronomer, then you've come to the right place. This essay will help you see how this particular topic is handled in an essay.You'll see that this essay is not as difficult as some people may have assumed it would be based on the syllabus requirements. It won't require any grammar, spelling, or proper sentence construction skills. It will also do very well on the reading section.One of the things you need to remember about the sample essay about when I heard the learn astronomer is that it doesn't always need to be the last part of your assignment. It can be the first part, if you want to make sure that you're prepared for the question that is coming up. It will also be much easier to write in front of a class than a single-page paper, so make sure that you study your essay for this section before you write the other parts.The sample essay about when I heard the lea rn astronomer also has a lot of details that will really help you when you're writing the rest of your assignment. You can see some specific examples and see what you can do to further develop your assignment. It's also easy to structure, because it's basic and short.Of course, you should make sure that you don't try to reuse the sample essay about when I heard the learn astronomer. This could cause you to lose your places and make it look like you're using a different story and format each time. Also, it might appear slightly sloppy, so keep that in mind when you're writing your own essay.Another great thing about the sample essay about when I heard the learn astronomer is that it can really help you see what kind of assignment you're going to get. Some of the topics are harder to tackle than others, and some of them can even be harder to tackle. So if you've been struggling with something, then you can see what you're working with by looking at some sample essays.Finally, the samp le essay about when I heard the learn astronomer is a great idea if you want to get more work done. Because it's so short, you won't need to waste time making a full, long essay. You can get more information on the topic and have less to worry about in terms of grammar, and other aspects of writing.
Sunday, April 5, 2020
Analysis Of Gangs Essays (1679 words) - Criminology, Crime
Analysis of Gangs Gangs are a violent reality that people have to deal with in today's cities. What has made these groups come about? Why do kids feel that being in a gang is both an acceptable and prestigious way to live? The long-range answer to these questions can only be speculated upon, but in the short term the answers are much easier to find. On the surface, gangs are a direct result of human beings' personal wants and peer pressure. To determine how to effectively end gang violence we must find the way that these morals are given to the individual. Unfortunately, these can only be hypothesized. However, by looking at the way humans are influenced in society, I believe there is good evidence to point the blame at several institutions. These include the forces of the media, theater, drugs, the government, and our economic system. By looking at the forces of the media, theater, drugs, and the capitalist economic system we can apply Akers' social learning theory and the Marxist theory as the cause of Gangs. Akers' social learning theory addresses the forces of the media, theater, and drugs. Akers' social learning theory states that criminal and delinquent behavior are acquired, repeated, and changed by the same process as conforming behavior. It also addresses four major concepts of differential association, definitions, differential reinforcement, and imitation. It goes on to say that this process will more likely produce behavior that violates social and legal norms than conforming behavior when persons differentially associate with those who expose them to deviant patterns, when the deviant pattern is differently reinforced over conforming models. Marxist's theory has capitalism the as the cause of crime. Marxist theory states that ownership of the means of production by the capitalist ruling class produces a society that is inherently criminogenic. The theory believes that the crimes committed are either, ?crimes of accommodation or crimes of resistance to the capitalist system. On the surface, peer pressure and greed cause gangs. Many teens in gangs will pressure peers into becoming part of a gang by making it all sound glamorous. Money is also a crucial factor. A kid (a 6-10 year old, who is not yet a member) is shown that s/he could make $200 to $400 for small part time gang jobs. Although these are important factors they are not strong enough to make kids do things that are strongly against their morals. One of the ways that kids morals are bent so that gang violence becomes more acceptable is the influence of television and movies. This is an example of the social learning theory. The average child spends more time at a TV than she/he spends in a classroom. Since nobody can completely turn off their minds, kids must be learning something while watching the TV. Very few hours of television watched by children are educational, so other ideas are being absorbed during this period of time. Many shows on television today are extremely violent and are often shown this from a gang's perspective. A normal adult can see that this is showing how foully that gangs are living. However, to a child this portrays a violent gang existence as acceptable. 'The Ends Justifies the Means' mentality is also taught through many shows where the "goody guy" captures the "bad guy" through violence and is then being commended. A young child sees this a perfectly acceptable because he knows that the "bad guy" was wrong but has no idea of what acceptable apprehension techniques are. Gore in television also takes a big part in influencing young minds. Children see gory scenes and are fascinated by these things that they have not seen before. Older viewers see gore and are not concerned with the blood but rather with the pain the victim must feel. A younger mind doesn't make this connection. Thus a gore fascination is formed, and has been seen in several of my peers. Unfortunately kids raised with this sort of television end up growing up with a stronger propensity to becoming a violent gang member or 'violent-acceptant' person. "Gangs bring the delinquent norms of society into intimate contact with the individual."1, (Marshall B Clinard, 1963). So, as you can see if TV
Sunday, March 8, 2020
Ethics in Abuse
Ethics in Abuse A couple of years ago in Knoxville, Tennessee there was a case of child abuse where a baby of just a few months old was shaken and abused to the point that it was left with severe brain trauma and required mechanical ventilation in order to live. Removed from the ventilator, the baby could not continue living. While the parents, which includes the dad who shook the baby would not agree to passively euthanize the child, the hospital decided the best thing to do was allow the child to do a peaceful death by taking it off life support. The reasoning the parents would not take the baby off life support was because the dad would be tried for murder instead of child abuse which is a lesser charger. There are a few ethical issues in this scenario. First, there is the issue of euthanasia itself secondly, the issue of keeping someone alive for personal gain is presented, and finally, there is the issue of determining whether the child was being kept alive based by the use of extraordinary mea sures.Life Support (album)Before continuing, there are few terms that need to be defined. First of all, there are two forms of euthanasia, active and passive. Active Euthanasia is defined as Ãâusing certain death-causing means to bring about or cause the death of a person.Ãâ (McKinnon). Passive Euthanasia is defined as Ãâwithholding or withdrawing certain treatment and letting a patient die.Ãâ (McKinnon) In the situation described previously, the issue at hand is Passive Euthanasia. Basically, even though the doctors actually removed the baby from life support that is not what actually killed him. The injuries that were inflicted by his father are what actually killed him. As a result, the ethicalness of Passive Euthanasia will need to be considered further.There is...
Friday, February 21, 2020
The Entertainment Industry Essay Example | Topics and Well Written Essays - 750 words
The Entertainment Industry - Essay Example The art cinema motivates its narratives through being real and authoritative. It shows us the real location of events as well as the real issues that we face daily. In order to change the main character of the movies, it is good to choose a character that has specific goals, well stated and is object oriented. The art of cinema is not concerned with the actions of the characters; instead, they are concerned with the reaction that they will get from people who watch the film. A better way of restructuring the art cinema would be putting emphasis on actors. This makes them feel that the welfare and role they are doing is important not only to the viewers but also to the producers, therefore, ensuring a good working relationship in the production of a movie. In ending some of the stories stated, it would be possible to change them as follows; In the art film ââ¬Å"Lââ¬â¢ Avventuraâ⬠where character by the name Anna is lost and not found, it would be more appropriate to change t he plot and end it in a way that maybe the body is found dead in unknown place or maybe show her happily living with an unknown person. This makes the viewer know what happened to her in the end. In ââ¬Å"a bout de soufflà ©Ã¢â¬ was the reason for Patriciaââ¬â¢s betrayal of Michel remains unknown, the plot could change in a manner that she writes and leaves a note explaining why she betrayed him. Such changes will make the viewer contended after watching the film since they are fully aware of what happened rather than leaving them in suspense.
Wednesday, February 5, 2020
Best Buy Company Paper Research Example | Topics and Well Written Essays - 1500 words
Best Buy Company - Research Paper Example Market study helps the company understand business opportunities or failures. Best Buy is a multinational company that carries consumer electronic devices, appliances, mobile phones, and services. It has been successfully operating in all the states and territories of the United States since 1986 but has only started international operations in 2002. Today, it operates in Europe, Mexico, Canada and China under different brands. The company has achieved growth thru mergers and acquisitions, particularly in its international segments. Cost of goods sold is reportedly high in these areas since it entails a lot of maintenance costs. For the past 2 years sales and income have been declining in the international segments while US sales are flat. Business opportunities are seen in the global atmosphere, while opportunities for domestic remain in technology and services. Competitions are taking advantage of their presence in the internet and continue to earn higher income and profits. Amazon and eBay for instance re online retailers that earns high income from internet sales. The declining income of BBC is an eye opener to look if its present business strategies need to be reviewed and changed. Market Report on Best Buy Company I. ... Particularly, its goal is emphasized in its strategies: to increase market share, to attain international growth, increase efficiency and to connect to the world. 1.2 Products Best Buyââ¬â¢s stores sell the following items: Consumer electronics, home office, entertainment software, appliances, and services. Consumer electronics consist of video and audio products, TVs, and MP3 players. Home office products include personal computers, cell phones, cable and internet service plan. Entertainment software includes products such as video games, CDS, video games, and computer software. Technology, service and repair. Other segments that offers food and beverages. Source: United States SEC Best Buy Form 10-K Annual Report 1.3 Geographic location Company operates locally in all the states and territories of the United States, while its international scope consists of China, all of European territories, Mexico, and Canada. 1.4 Strategies Strategies that helped company grow are by acquisiti ons and expansion. The company was incorporated in 1966 with the name Sound of Music Inc. but changed name to Best Buy in 1983. From this beginning it has grown and expanded thru mergers and acquisitions that made an impact of its presence in electronics, entertainment and technological services in the United States. Organic growth began in 2009 when it took advantage of the bankruptcy of Circuit City to serve the market share of the electronics consumers of the industry which was left open by the bankrupt company (University of Oregon Investment Group , Jan 8, 2011 pdf). The international segment started in 2002 through acquisition of established brands in Canada. Its presence in China
Tuesday, January 28, 2020
The Search for Exoplanets
The Search for Exoplanets Daniel Davies Throughout the history of humanity, numerous scientists have been intrigued by the search for inhabitable exoplanets. To date, such ventures are still in the developmental stages and the discovery of life beyond earth and the solar system , regardless of how primitive it may be, may soon be regarded as a fundamental breakthrough in astronomy (Jones Mukai, 2007). The fundamental properties to be considered if a place is habitable are: presence of organic materials, water and energy sources. Habitability of the planet also takes into consideration, nearness of the planet to the sun, the duration of existence of life and not necessarily, that life is present or has ever been. The search for life in exoplanets has been ongoing for over a decade (Su, et al. 2011). The search has been difficult and lengthy and there have been no results showing the existence of life outside earth. The S.E.T.I or Search for Extra Terrestrial Intelligence project is probably the most famous experiment withi n this focus of study. Why the search for inhabitable exoplanets?: With the powerful view of telescopes, scientists have been able to view beyond our solar system. Planetary scientists have continuously been searching for exoplanets (planets beyond our sun) that can support life. However, they cannot view these planets in detail as they are so faraway (Su, et al. 2011). The closest known exoplanet orbiting star is called Epsilon Eridani, which is 63 trillion miles away ââ¬â it is close to 14,000 times away from Neptune, the farthest planets in our solar system (Horner Jones, 2010). Due to the great distance, exoplanets cannot be viewed directly since the amount of light they reflect is too faint to be detected from a far off distance (Horner Jones, 2010). Alternatively, scientists infer the presence of an exoplanet from the changes in wavelength of light illuminating from the star, this may be caused by the gravitational pull from an orbiting planet or the regulation of brightness of the star due to transiting planets. When the Fermi Paradox was proposed initially, most people thought planets were rare. Nevertheless, since then the astrological tools have discovered the existence of numerous exoplanets. However, with each new discovery of an earth-like planet for instance, Epsilon Eridani, it becomes less likely that there could exist a planet apart from the Earth that can support life. Using methods such as those stated above, scientists have been able to discover hundreds of exoplanets and the first detection was in 1995. Once they detect one, they begin evaluating it to ascertain whether it can support life. Further, they analyze the light spectrum that radiates from the star in order to reveal the properties of the planet. The hunt is still on for planets, which are about the size of earth and those that are at the right distance from the sun. This is done in a region known as the habitable zone, or sometimes referred to as the Goldilocks Zone. The habitable zone is the belt bordering a star where temperatures are optimum for liquid water. The Earth lies within the habitable zone of the sun, which is the star. Beyond the habitable zone, life is impossible as it could be too cold and frozen to support life. Therefore, a planet that lies between a star and a habitable zone would be too hot and steamy to support life. Ideally, most astronomers like to know more about the atmosphere of viable habitable exoplanets. In light of this, they study the molecular makeup of the planet in search for traces of greenhouse gases that have escaped that could be an indicator of an inhabitable planet or they can be able to pick up traces of oxygen, water, carbon dioxide, methane that indicate a planet is habitable (Horner Jones, 2010). The notion that planets beyond the Earth can support life is an ancient discovery. Since the late 20th century, there have been two breakthroughs in this field. Through observation and exploration by robotic spacecrafts of other planets and orbits within the solar system has provided scientists with vital information regarding habitability criterion and provided geophysical conditions for comparing life on Earth and on other bodies. Exoplanets were discovered in the 1990s and has been fast paced thereafter hence providing information for the possibility of extraterrestrial life. The findings have further confirmed that the sun is not peculiar among the stars and planets and hence this has expounded the possibility of life beyond the solar system. The earth is the only known planet in the universe that harbors life, despite recent evidence to suggest organic materials were found on Mars, this is only an indicator of what might have been. Nevertheless, there are estimates of habitable areas around other orbits. Additionally hundreds of exoplanets have been discovered, which has created new insights into other habitable places in the universe. In November 2013, the Kepler Space Mission data released stated that there were about a billion earth-sized planets that were orbiting within habitable zones within the Milky Way Galaxy. Methods used in the search for inhabitable exoplanets: Exoplanets do not emit any light of their own and are obscured by other brighter stars, this makes them difficult to detect. Moreover, normal telescopes cannot be used to view them. This is called Direct Imaging and is not the best way to identify exoplanets , however the technology and ideas behind it are seeing an advancement and could produce promising experiments in the future. Therefore in order to identify exoplanets, a number of techniques are used to detect them and the impacts that they have on the stellar system. Below is a summary of common methods used to detect inhabitable exoplanets (Horner Jones, 2010). Pulsar timing: Pulsars refer to neutron stars that have misaligned magnetic and spin axes. As the pulsars rotate, they emit flashes of radio waves that travel to earth at regular intervals. The radio flashes can be detected and timed. The intervals between the pulses are very regular and are more accurate than the ticks of an atomic clock. A planet that orbits around a pulsar will cause slight variations to the timing of the flashes, which can be used to detect it. The first exoplanet that was orbiting around a pulsar PSR B1257+12 was detected through pulsar timing in 1992. Radial-velocity: A planet that orbits a stars exerts a little gravitational pull that makes the star wobble a little about the barycentre which is the systemââ¬â¢s centre of mass. If the planetââ¬â¢s edge is aligned to the Earth, this wobble can be observed as a ââ¬ËDopplerââ¬â¢ shift in the light emitted by the earth. When a star is travelling away from the viewer, the wavelengths of the emitted light shift with respect to the velocity the star is moving at , hence the wavelengths shift to the red end of the spectrum and towards us the blue end of the spectrum. The planetââ¬â¢s gravitational pull is minute and hence, very accurate spectroscopic measurements are needed. On measuring the radial velocity it is therefore possible to determine the exoplanetââ¬â¢s orbital period, however the size of the planets cannot be determined. Astrometry: This technique utilizes extremely definite measurements of the position of stars in order to detest the tiny shifts that are caused by orbiting planets. This method is highly effective for planets that orbit face-on where the motion positioning is at its greatest, nevertheless, the measurements are difficult to obtain. Gravitational lensing: Einsteinââ¬â¢s theory of relativity deduces that massive foreground objects bend the light from background objects by their pull of gravity. The bending of light causes a ââ¬Ëlensingââ¬â¢ effect that magnifies the background objects that are distant, allowing the curving of light so that distant planetary transits can be observed. Photometry: Many scientists utilize this transit technique. It shows that when a planet passes in the anterior of its parentââ¬â¢s star edge, there is a decrease in the brightness of the star that can be detected. The periodic decreases in brightness may indicate the presence of an exoplanet, the measurements of light curves and spectral type of the star may give an indication of the size and orbital duration of the planet. When this method is combines with Radial velocity a number of parameters can be inferred accurately including the mass of the planet, which can determine the composition of the planet. The presence of methane and oxygen in an exoplanets atmosphere could be a strong indicator of a bio signature or evidence of past or present life in an exoplanet (Jones Mukai, 2007). Methods today are used to gain a good estimate to the temperature and size of an exoplanet so as to ascertain whether liquid water can exist on the surface of the exoplanet, this is one of three criterion to as certain whether a planet can support life. Figure(1): Shows a plot of results from a dwarf star in another solar system , I have highlighted the transits with the blue segments , taken from my planethunters.org, account Figure 1 clearly shows the dips in output from the light source, which is the dwarf being observed. The dips are huge indicators to an exoplanet transiting the star. Photometry is by far the most common form of finding new exoplanets. Impacts of the results: The results show that powerfully life on Earth highly affects the environment, and the feedback cycle loops. The impact of earthly life on cloud cover is an example. Clouds are composed of either water or carbon dioxide and therefore have a huge impact on the habitability of the planet through the greenhouse effect and that albedo. (Albedo is the surface reflectivity. High albedo surfaces reflect back most of the light and heat that falls on them, while low albedo surfaces absorb energy (Chambers, 2006). High albedo clouds maintain the coolness of a planet by reflecting instead of absorbing stellar energy. From research on earth, plant life contributes to more cloud cover. Likewise, airborne microorganisms in an exoplanetââ¬â¢s atmosphere can be seeds that lead to more cloud formation. The effect can lead either to cooling of the albedo or to warming because of the greenhouse effect (Fujiwara, et al., 2010). In both cases, clouds or a lack therein may change the habitability, hence altering the planetââ¬â¢s temperature in one way or another. Life may also alter the carbon cycle. Plants on earth affect the quantity of carbon dioxide in the air, calcareous plankton have had major changes in the Earthââ¬â¢s carbon cycle (Fujiwara, et al., 2010). The systems have effects on the heat trapping properties of the atmosphere and alter the chemistry of the atmosphere and hydrosphere. Once exoplanets become hydrated, their impact will shift from affecting the delivery of volatiles to arid lands and hence will affect developments in life. Due to developments in our world, such as industrial revolution and technological advancements(Alvares et al, 2008), a number of species of biodiversity have become extinct and a great number of micro-organisms contributing to geochemical cycles have been extinguished (Chapman Morrison, 2004). Although these are believed to have been cause by a myriad of other factors, a few of these have been caused as a result of the collision between the earth and other small heavenly bodies. At face value, most people assume that more favorable life conditions would be developed if a host planet were discovered, however, mass extinctions will have to occur in order to trigger an influx into these alien bodies. Ever since it was discovered that collisions with asteroids and comets could lead to significant threats to human life on Earth, the idea that the impact rate on those bodies on earth would be much greater were it not for the protective influence of planet Jupiter (Chapman Morrison, 2004). Were it not for the mass and placement of Jupiter within the solar system , the earth could have been more punishing throughout its evolution, which would have entirely prevented the evolution of life on earth. The earth is a habitable planet that is an incredibly rare and unique place and that life should be very scarce or even non-existent anywhere else in the universe. It is now well acknowledged that asteroids and comets have bombarded the earth for decades. When it was first discovered that the impacts of craters on earth were the effects that resulted from the collisions between the earth and other solar systems, the greatest majority of the objects crossing the earth were comets (Chapman Morrison, 2004). A significant fraction of the earthly bodies were ejected from the solar system due to the distant perturbations by the Jupiter leaving a significantly, greater number of transiting orbits that could threaten the earthââ¬â¢s ecosystems. Conclusions: At face value, most people assume that more favorable life conditions would be developed if a host planet were discovered, however, mass extinctions will have to occur in order to trigger an influx into these alien bodies. The quest for an inhabitable exoplanet is a threat to humanity as it could trigger harmful effects on earth such as the collision of comets and the earth, which could lead to drastic effects such as volcanic and crater eruptions, which will have drastic effects on humanity. This means that the search for an exoplanet is indeed a search for our own preservation, eventually the earth will be swallowed by the sun , the human race will need somewhere else to live. The big question on peoples minds is , will we ever get there ? The answer to this is in the near future , certainly not, but in the far future , perhaps. With the promise of new technology coming , the ability to predict rapid changes in our space transportation may be obsolete, in truth we dont know. Bibliography: Alvarez. L. W., Alvarez, W., Asaro, F. and Michel, H. V., (2008). Extraterrestrial Cause for theà Cretaceous-Tertiary Extinction. Chambers, J. E., (2006). 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A record of planet migration in the main asteroid belt.à Nature. Morris, S. C., (2008). The evolution of diversity in ancient ecosystems: a review.à Philosophical Transactions of the Royal Society. Oââ¬â¢Toole, S. J., (2007). Selection functions in doppler planet searches. Monthlyà Notices of the Royal Astronomical Society. 392, 641 Petit, J.-M. and Jones, B. W., (2009). Differences between the impact regimes of the terrestrial planets: Implications for primordial D:H ratios. Planetary and Space Science. 57, 1338 ââ¬â 1345 Su, K. Y. L., et al. (2011). The Debris Disk Around HR8799. The Astrophysical Journal,à 705, 314Ã
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