Online Social Network Bring More Benefits Than Harm for Teens Essay Example for Free

Online Social Network Bring More Benefits Than Harm for Teens Essay Social networking is even used to prove the legitimacy or credibility of the individual. From entertainment, information to career improvement, social networking has practically changed the way people communicate and interact online. But social networks still have to face certain challenges especially on the users’ end since these challenges could harm users and the social network’s reputation. It is important for users of social network to consider these issues that surround the social network. By remembering these challenges, users will be able to protect themselves from negative repercussions on some issues on social network. Privacy as the Main Concern The number one problem users as well as social network administrators face everyday is security. It can happen in any given time with or without the user online. Attacks on different social networking website are always a possibility because the data protected by social networks are too precious to be ignored by attackers. Viruses, spywares and worms that aim to crawl through security protocols of social networks are constantly threatening social networks. Considerable time and resources are always spent by social networks in order to maintain privacy of their users. A single attack could make every user vulnerable to security related problems such as identity theft. Information Access Access to social networking websites varies. Some website will allow any user to access information of persons even though they are not part of the user’s network while some social network prohibit access to any form of information without confirmation from the profile owner. Problems regarding information access could be completely controlled by user but unauthorized access could still happen especially for those who are just starting to understand the rules of different social networks. Updated Notification Every social network provides real time notification usually through email if there are any changes in the user’s profile. But most notifications are very limited and they are usually on the positive things that happened on the social network. For example, when a request to connect is asked, the user will automatically be notified through email or any messaging system the user prefers. But social networks will never inform the user if someone willingly removes their connection. This is done to avoid confrontations between users which significantly affect the relationship. Misuse of Social Networks Unfortunately, there are those who use social network for scams and other illegal purposes. There have been reports around the world that social networks are used to spread rumors, lies or degrading messages that could affect the person’s reputation. â€Å"Cyber bullying† or an act of being hostile to another user online has also been observed in some social networks. This type of actions should never be allowed in any social network. Users have to be careful on the veracity of the data they receive and to take actions as soon as possible as soon as something undesirable is found on social networks. Protection for Children Aside from privacy and misuse of social networks, the vulnerability of minors is also a big problem for all social networks. While some social networks are geared towards adults, most social networks are open to everyone – including minors. Unfortunately, minors on social networks could become targets of sexual predators that can cloak their real identity in different social networks. While some legislators have taken steps in preventing these offenders from using social networks these efforts could be easily curtailed especially when the offender is more than familiar with the internet.

Sahara Desert Essay -- essays research papers fc

Sahara Desert The Sahara Desert is the world’s largest desert area. The word Sahara comes from the Arabic word sahra’, meaning desert. It extends from the Africa’s Atlantic Ocean side to the Red Sea and consists of the countries of Morocco, Algeria, Tunisia, Libya, Egypt, Mauritania, Mali, Niger, Chad, and Sudan. It is about 5,200 miles long. Overall, the Sahara Desert covers 3,500,000 square miles. The geography of the desert is varied. In the west, the Sahara is rocky with varied elevation. It does contain underground rivers, which sometime penetrate the surface, resulting in oases. The central region of the Sahara has more elevation than the other areas, with peaks such as Emi Koussi and Tahat. Even though the area lacks rainfall, these peaks are snowcapped during the winter. The Eastern part of the Sahara, the Libyan Desert, is dry with very few oases. The Sahara's landscape features include shallow basins, large oasis depressions, gravel-covered plains, plateaus, and mountains, sand sheets, dunes and sand seas. Sand sheets and dunes cover over 25 percent of the Sahara’s surface. The most common types of dunes include tied dunes, blowout dunes, and transverse dunes. Within the Sahara are several pyramidal dunes that reach over 500 feet in height while others reach over 1,000 feet. Researchers have for many years tried to figure out how these dunes were formed, but the case remains unsolved. The boundaries, however, are not clearly defined and have been shifting for millennia. The Sahara was once a fertile area; millet was cultivated there over 8000 years ago. About 10,000 years ago, the Sahara was used as land for grazing in which elephants, giraffes and other animals thrived. It is estimated that in 4,000 B.C., the climate began to get drier. The fertile landscape dried up and the desert widened, creating the form that appears today. As conditions gradually became drier, however, and desertification set in, farmers abandoned their land and the animals migrated to other areas. The Sahara’s climate is very hot and dry. Although it is very hot during the day, it does become cold at night. On average, it only has 8 inches of rainfall per year. The Sahara's climate consists of b... ... whole, the Sahara is one of the harshest environments known to man. The majority of the people living in the Sahara Desert are nomads, which means that these people continuously move from region to region in search of better living conditions. It is believed that the first nomadic peoples came to this region after domestic animals were introduced to the Sahara 7,000 years ago. Evidence suggests that the Sahara accumulated diverse groups that quickly formed dense populations throughout the region. The majority of the groups lived separately, but depended on each other for trade. One of the main problems that are happening to the Sahara desert is the continuing development of the boundaries of the desert. This is known as desertification. As global warming continues to increase, the probability of more desert regions becoming bigger is more likely. Bibliography n.a. http://library.thinkquest.org/10898/sahara.htm. â€Å"Sahara Desert† ThinkQuest 1998. n.a. http://library.advanced.org/~16645/the_land/saha_cl.shtml â€Å"People and Places: Sahara Desert† 1998. "Sahara," Microsoft ® Encarta ® 97 Encyclopedia.  © 1993-1996 Microsoft Corporation.

Love, Power, and Romeo and Juliet Essay

The play Romeo and Juliet is a classic tale of friendship, love, betrayal, comedy, tragedy, and death. I t was written by William Shakespeare in and is considered one of his greatest tragedies. It has many different renditions and has been translated into many different languages. In the play â€Å"Romeo and Juliet† two young ambitious lovers put themselves in situations that would inevitably lead to their deaths. Was Romeo to blame or perhaps Juliet? Maybe the blame can be put on true love that would lead them to do certain things that were forbidden during those times. In the relationship between Romeo and Juliet many questions are formed within my mind such as who had more power in the relationship between Romeo and Juliet, was it Romeo, was it Juliet, or was it the Love between them. Perhaps gender played a role in who had more power in the relationship. In this paper I intend on exploring the answers to these questions that are lingering in my mind. Throughout the play Juliet increasingly showed her power over Romeo, even though in those days, it was customary for men to show their power and dominance over women, this was not the case in this play. This could have been because William Shakespeare was married and had daughters. The first instance that Juliet shows her indirect power over Romeo was the very moment Romeo laid his eyes upon her. In scene one, act five Romeo says to a servingman, â€Å"What ladies that which doth enrich the hand of yonder knight†, â€Å"Oh she doth teach the torch to burn bright! It seems she hangs upon the check of night as a rich jewel in an Ethiop’s ear beauty too rich for us, for earth to dear! † This show power because earlier that day Romeo was mopping around crying about another young lady named Rosaline. When he saw Juliet he completely forgot who Rosaline even was and went out of his way to talk to Juliet even though she was part of the family that his family was in a feud with. Power was also exhibited by Juliet because Romeo was so infatuated with her that he stood outside her window and talked about her like she was the sun in the sky herself even though he could have been killed for it. Another exhibit of power was when Marcutio and Tybalt fought and the end result was Marcutio being killed by Tybalt and Romeo killing Tybalt and then being banished from Verona by the king. All his happened because of the love between Romeo and Juliet. Another instance of Juliet’s power was when she unintentionally got the Prince and Romeo to fight to the death over her, even though she was not really dead. The result of this battle, ended in the Prince’s death. The next instance of Juliet’s power was at the end of the play when Romeo was so incredibly distraught over his lov ers’ alleged demise that he purchased a vial of poison brewed by an apothecary to kill himself. After Romeo Kills Paris he lies down next to his beautiful Juliet and consumes the vial of poison so he can be with his lover once again. In the tragedy of Romeo and Juliet, Romeo also exhibits power. In the balcony scene between the two star- crossed lovers when the famous Romeo, Romeo where forth art thou Romeo speech Romeo tells Juliet that he wants to be with him. They both know that their love is forbidden, but Romeo convinces Juliet that they should run away out of Verona to get married and make beautiful love children. This shows power because they could have been banished or even killed because they could have caused the families to go to war and the kind already declared if they fought again they could been punished with death. Romeo also show his power when in the end of the play Romeo see Juliet dead and drink the poison to kill himself, Juliet awakes to see her lover dead his power over her was so strong that she tried to kiss his lips in hopes of getting the poison into her system so she could be with her lover. When they plan failed she took Romeo’s dagger and plunged it into her own heart killing herself instantly. If that is power over someone I don’t know what is. The last Object that could have been seen as having power over the relationship between Romeo and Juliet was the Friar. He was somewhat of a corky guy who brewed up remedies and was a good friend of Romeo and Juliet. He tried his best throughout the play to get the two lovers together and we all know how that turned out. The first instance of the friar showing his power over Romeo and Juliet’s relationship was when the two came to him for advice he came up with a plan to get the both out of the city and marry the two. Juliet was supposed to take a potion that the friar had concocted which was to make her seem if she had died but she would merely be a sleep. The family would bury her and she would wake up several hours later and meet up with her lover. He writes to Romeo to let him know what the plan is but the letter never makes it to Romeo so he doesn’t know Juliet isn’t really dead. Then all the bad stuff happens and everyone dies. So yes the friar did have some sort of power over the relationship between Romeo and Juliet but it wasn’t good power at all. In conclusion Love will make you do some stupid things. Love is very powerful whether experienced by a man or woman, it can make you do some strange things. The story was a good one and Power over people can definitely be a bad thing, as you can see in Romeo and Juliet.

Dna Contamination And Its Unique Property Of Being...

The mtDNA are explicitly studied recently due to its unique property of being inherited only from the mother. Unlike the nuclear DNA, mtDNA does not follow the Mendelian laws. Studying the inheritance pattern of mtDNA from mother to offspring will give us a better insight about its role in mitochondria associated human diseases. The origin of mitochondria can be explained by endosymbiotic theory which states that the ÃŽ ±-proteobacteria was engulfed by an archaebacterial to become what is presently known as mitochondria. As a part of evolution, the mtDNA has almost lost its genetic identity though it continues to retain a small genome from its ancestors. The rest of the non-mitochondrial origin genome came from the horizontal gene transfer. However, there is a lot of debate over the inheritance patterns of mtDNA. In this article, the author explains the inheritance pattern of mtDNA with experimental proof and its isolation from mammalian cell line free of nuclear DNA contamination. The nuclear DNA contamination is due to the recruitment of nucleus derived tRNAs to the mitochondria causing redundancy in the tRNA forming codons. This will eventually lead to the loss of original functional mtDNA thereby increasing the mutational load in the cell. To study the mtDNA transmission from mother to offspring, an experiment was conducted in which the mtDNA inheritance was studied in primary oocytes. They found that only a certain number of mtDNA were transferred to oocyte. On oocyteShow MoreRelatedCrimes Scenes And Evidence Gathering Underpin Every Police Investigation Essay1971 Words   |  8 PagesCrimes scenes and evidence gathering underpin every police investigation. From the moment police arrive to a scene to the moment a verdict is decided upon the offender, the way in which crime scenes are established and evidence gathered holds significant weight on the outcome. 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