Technology ethis in the classroom Essay Example | Topics and Well Written Essays - 750 words

Technology ethis in the classroom - Essay Example When computers are properly utilized, they can be good tools for education, as well as an investment. Everyday, schools, as well as teachers and students, are reliant on computers in the performance of everyday activities. Teachers can use them in recording student grades, as well as the reception and sending of mail. The individual can use them to create, store, and manage critical information. Therefore, they must be protected from loss, misuse, and damage. For instance, school districts are expected to ensure that a student’s information regarding learning problems, grades, attendance rates, and personal data is protected from loss and maintains confidentiality (Barcalow et al 1). While the use of the internet has significantly revolutionized communication, as well as provided new educational tools for student learning, it has also come with risks and raised ethical issues for all students in different grades (Sandler 1). This has also made for various opportunities for ill egal and inappropriate behavior, as well as behaviors that are deemed unsafe for the students. More K-12 educators, progressively, have come to appreciate the urge and importance of utilizing the internet for instructions, as well as teaching and familiarizing the students with knowledge and critical thinking skills required for production of responsible citizens in and out of school. Some school districts have successfully completed the incorporation of internet safety and security lessons into their curricular, in preparing students from every grade for responsible and ethical behavior when operating online. I would proceed to implement security through teaching students to raise questions on the reliability and authenticity of websites that they access (Sandler 1). The learners need to be provided, as well as permitted to utilize specific websites for research purposes. Additionally, the students need to be provided by a protocol set for which they are required to follow if somet hing that they find appropriate appears on the computer screen. Most of the cover news on issues that have to do with internet safety and security issues are mainly focused on the young learners and, for this reason, it is vital to begin education efforts aimed at this (Conway 1). I would encourage the implementation of web usage education immediately the learners begin using computer technology. Learners and students in the first two grades need to be taught to on application and use of passwords and why this needs to be kept secret. I would also create copyrights with students using agreements in the classroom, as well as parents signing acceptable policies for use that regulate the use of technology in school. The usage of the web would incorporate acceptable policies of use that need to be the first line of defense in order to avert unlawful and insecure use of technology resources in the school (Conway 1). The technology policy must be reliable with in comparison with policies used for other resources that relate to the school, replicating the school’s goals and mission. Three ethical practices would be implemented in the classroom. For one, it would be essential to solicit parent involvement. Not only the learners and tutors will be targeted by internet safety and security education (Vance 1). It is important for school districts to hold, at schools, internet safety rights for both students

Internet Cafe Administration and Monitoring System Essay Example for Free

Internet Cafe Administration and Monitoring System Essay Internet cafes are very abundant nowadays. Managing networked computers, payment, time in and time out of the client PCs are very important especially to the cafe owner or employee. In a computer cafe, the recording of time is under the responsibility of the cafe owner or employee who must work consistently, timely, efficiently and patiently to make his business work. Since system computerization is becoming a trend, the cafe owner needs a system to serve its customers better and efficiently. How will an Administration and Monitoring System for Ledion Internet and Networking Cafe help the business manage the client pc start and end times efficiently and accurately? Ledion Internet Networking Cafe have their existing computerized system but is not reliable enough because there are times when the server automatically locks the client pc even when the time was not finished which the owner/employee was obliged to write the time starts and ends of the client pcs in a hard copy of MS Excel sheet. Since the Ledion Internet Networking Cafe have its 3 branches. The main branch is located in 10th Avenue, Caloocan City near Caloocan City Hall; the other 2 branches are situated near Our Lady of Fatima University and University of Santo Tomas. The owner was not well-informed of what is happening in his other cafes unless he calls the employees in charge in other branches. It is very beneficial for the owner to solve the common problems they encounter on their everyday operation in the cafe.

Blood Oxygenation Level Dependent FMRI Psychology Essay

Blood Oxygenation Level Dependent FMRI Psychology Essay Functional magnetic resonance (fMRI) is the most widely used and powerful method of understanding the brain function and mapping neuroanatomy of the human brain. The most basic fMRI technique is blood oxygen level dependent (BLOD-fMRI). Paramagnetic deoxyhemoglobin in venous blood is a natural contrast agent for magnetic resonance imaging (MRI). Basic principles and methodological applications of BOLD-MRI as an introduction are presented in this article, and the relationship between neural activation and a magnetic resonance signal change is represented in much detail. Introduction Functional magnetic resonance (fMRI) is a widely recognized technique for brain mapping and providing the anatomical information of brain activity. It has been demonstrated that this method bases on the local hemodynamic changes that influence deoxyhemoglobin changes in venous blood. Furthermore, susceptibility changes produced by deoxyhemoglobin changes lead to the changes of MR signal strength. This effect is called blood oxygenation level dependent (BOLD) contract (1). High spatial and temporal resolution brain mapping can be structured by this basic method. Currently, it has become the most powerful study of brain function techniques. Compared with the traditional neuroimaging methods, including positron emission tomography (PET) and intrinsic signal optical reflection imaging, BOLD-fMRI can provide high spatial and temporal resolution sufficiently using internal concentration of oxygenation in human bodies as a natural contrast agent. Blood oxygen level dependent (BOLD) effect was firstly presented by Ogawa etc in 1990. They found that the magnetic resonance signal reduces when the concentration of oxyhemoglobin decreases. Also, their research showed that the reduction of signal not only occurs in blood, but also outside the blood vessels. Thus, they assert that this effect is caused by the property of magnetic field changes. After that, many researchers performed a large number of theoretical and experimental works to summarize the basis of BOLD-fMRI imaging. When neuron is activated, regional cerebral blood flow and oxygen consumption volume increase, but there are differences between the two increases, which is that the increase in cerebral blood flow is more than the oxygen consumption. Due to this difference, the venous oxygen concentration in active regions is significantly higher than the surrounding tissue and the concentration of deoxyhemoglobin reduces relatively. BOLD contrast has its origin in the fact that when normally diamagnetic oxyhemoglobin gives up its oxygen, the resulting deoxyhemoglobin is paramagnetic (2). Deoxyhemoglobin is a paramagnetic material which can produce local gradient magnetic field in the blood vessels and surroundings. Hence, it has effect on reducing T2. When brain areas are activated, the effect of reducing T2 decreases result from the reduction of deoxyhemoglobin. Compared with the resting state, T2 or T2* is relatively extended in local brain regions. Therefore, the signal is relatively enhanced on the T2 weighting or T2* weighting functional magnetic resonance imaging maps. Current MRI brain mapping studies all focus on off-on subtraction mode, which is the fMRI signal in active condition minus the signal under control conditions. The signal is extremely weak, and the relative increasing strength is 2%-5% generally. During imaging, the functional image of corresponding brain areas can be obtained if superimposing the high signal in different colors of active area on the high-resolution T1 weighting anatomical maps. This method is called blood oxygen level dependent contrast fMRI due to it depends on the level of oxygen in local blood vessels (1). This article reviews the basic principles and available methodological information and research on blood oxygen level dependent (BLOD-fMRI). This review begins with some basic principles on BOLD-fMRI. Furthermore, the methods for BOLD-fMRI will be described in detail including block design and event-related design. Also, the results of BOLD-fMRI studies will be presented and the advantages and limitations of the current research will be discussed as well. Finally, the key points and important aspects of the BOLD-fMRI will be summarized as a conclusion. Materials and Methods BOLD-fMRI experiment steps include: firstly, make experimental planning and determine the most optimal stimulus or task programs. Secondly, high T1 WL resolution anatomical images and a great number of original images in stimulation and rest states can be obtained by scanning. Lastly, functional active maps should be obtained by experimental data analysis. Block design bases on cognitive subtraction mode to show the stimulus task in block form. A tropical block design contains two basic tasks which are experimental tasks and control tasks, and the two intervals of blocks appear. Task-related brain activities can be understudied by the comparison of regional cerebral blood oxygen reaction through stimulation and control tasks. It is widely used in locating brain function. It is the early main method to do functional magnetic resonance imaging experiments. The advantages are simple and easy to perform tasks. However, the drawback is that the BOLD signal changes larger result in long stimulation time and the high rate of oxygen reaction. In blocked designs, regardless of stimulus presentation or task performance interdigitated with rest, observing the relationship of the time course of BOLD response to activation paradigm is possible (3). Also, more than one image can be obtained during every experimental and rest period. The signal time course should be assumed to be activated, and it can be tested. A simple example is presented in Figure 1(a). Firstly, switch on and off the visual stimulation (black and green) quickly for 10 times. It is shown that the time course of pixels follows the stimulation paradigm. However, the difference between the stimulation and time course is quite obviously (p

The Popularity of A Christmas Carol by Charles Dickens Essay -- Charle

The Popularity of 'A Christmas Carol' by Charles Dickens I Think that 'A Christmas Carol'' by Charles Dickens is still popular today because it has a good moral story and people still enjoy a good old fashioned ghost story. This is because a lot of us are still interested in the afterlife and if such things as ghosts even exist we are fascinated by them and a novel with ghosts in, we cannot put it down. The moral story which seems even in modern day society to stick with us and we are still very much obsessed with Christmas and the joy that goes with it. Also people who read this book see there is a slight humorous side to the text which seems to make us more interested in the book itself and people like to feel amused, it makes them feel happy. As well as cleverly written text and an emotional side to the story. All of this ensures the survival of the classic story. The theme of the book is all about Christmas, which appeals to us even in today's busy world. People like to read about Christmas because it is a happy time of year and brings joy to lots of people. Also Christmas past brings back memories Such as, the festive joy, the feel of Christmas and the love between family and friends. There are three views on Christmas in the book, Scrooges Bob Cratchitts and Fezziwig. Scrooge can't stand Christmas he thinks it a time of depression and deep gloom e.g. 'What right have you to be merry? What reason have you to be merry?' This shows scrooge to be a grumpy old and generally depressing person at Christmas time. Bob Cratchitts view on the festive time of year is a happy merry and good will to everyone. And finally Fezziwig who ... ...ke the reader think, laugh or cry. Dickens has done this to produce a book that will live on forever. In my opinion the main reason for 'A Christmas Carol' been so popular in modern day society is the moral message. The message that makes you stop and think after you have read the book. The message was well in my opinion: 'Things can only get better'. For instance at the beginning of the story Scrooge was a crusty old man and at the end of the story he saw the light at the end of the tunnel. He made it out of that dark tunnel and shared his Christmas good will with everyone. This moral message will live on forever like the book, read time and time again. Works Cited: Dickens, Charles. A Christmas Carol. Classics of Children's Literature. Ed. John W. Griffith and Charles Frey. 3rd ed. New York: Macmillan, 1992. 197-249.

Paleolithic and Neolithic Ages Ap History

Paleolithic and Neolithic Ages The Neolithic Age changed the way people live now a days for many reasons. First of all, in this era agriculture was very important. People could farm instead of hunting and gathering and also they could settle down in one place. People also began to live in small communities. Settling down in one place meant more food and free time. This started trade because there were food surpluses and began the first forms of government. There were many things to be done so they divided work up among everyone in the small community.This was the very beginning of the way we live today. The Paleolithic Age is the Old Stone Age ending in 1200 B. C. E. were stone tools were used for hunting and gathering. People used tools such as clubs and choppers to crack open bones. Tools in this era were mainly made to use for shelter, defense, and keepings of food and clothing. These people believed in an afterlife which was similar to actual life on Earth because they were provi ded with all the tools, weapons and necessities needed to survive which was stated in document 1.In this age scholars believed that their ancestors lived in a world of spirits and shown in document 2 these people were hunters. The Neolithic Age is the New Stone Age between 8000 and 5000 B. C. E. were the adaptation of sedentary agriculture occurred and were domestication of plants and animals occurred. This is the era where people began to develop social groups and create civilizations and stop moving from place to place. Stated in the document 4 people began to depend more on animals and less on plants.They followed herds of animals instead of just one to get more food and eventually create a surplus. The animals that they herded gave them the fertilizer for agriculture. In document 5 it says that there were settled farming communities and they began to create a council to make decisions on what to harvest. Settled people had more personal property. These differences were so import ant because of the technology and ways of life that these people started to create.If the people from the Paleolithic and Neolithic ages didn’t discover the things that they did our world today would be totally different. There are many possibilities on what our life would be like today if these people didn’t start a foundation for us. In conclusion, as you can see the Neolithic age changed how we live greatly. They started the first forms of agriculture and created small communities of people. People settled in one place and began to trade for work. What do you think life would be like if people from these two eras didn’t start the things they did for us?

Free Essays on Miss Brill-A Rose For Emily

The two women, Miss Brill and Emily, have several similarities and differences. Both protagonists chose to live in earlier times and hold on to the past, they are very lonely, and they both cling to an object of affection that is no longer living. Even though they are so similar they do possess a few differences. Emily chooses to shun society and her character remains unchanged throughout the entire story. On the other hand, Miss Brill loves to go out and feel like a part of society and her character changes emotionally in the end. A major comparison between the two elderly women is their inability to move beyond their past. They seem to be forever positioned in the earlier times of their lives. When Emily’s father died she refused to believe that he was dead; and for three days she told people that he was still alive. She would not allow anyone to bury him during those three days. Also, Emily never paid the taxes on her home because she was still under the impression that she did not owe any taxes. When men from the city came to collect her money she called them by the name of an old Colonel that was no longer alive. She tried to deny reality and live in the past. In comparison, Miss Brill’s life consists of putting on her fur, sitting on a bench, and watching the people around her. It was her daily routine that appears to never change. She never moved on with her life; and instead tried to live vicariously through others. The two protagonists were also very lonely and the objects that they clung to were dead. Emily lived in a big house with her father until he passed away and she was left alone. She did not have any friends and she never spoke to anyone who lived in her town. For the most part, she kept to herself until another man came into her life to fill the void of her father. She was afraid of losing him so she murdered him in order to hold on to him. Similarly, Miss Brill lived by herself and had no frien... Free Essays on Miss Brill-A Rose For Emily Free Essays on Miss Brill-A Rose For Emily The two women, Miss Brill and Emily, have several similarities and differences. Both protagonists chose to live in earlier times and hold on to the past, they are very lonely, and they both cling to an object of affection that is no longer living. Even though they are so similar they do possess a few differences. Emily chooses to shun society and her character remains unchanged throughout the entire story. On the other hand, Miss Brill loves to go out and feel like a part of society and her character changes emotionally in the end. A major comparison between the two elderly women is their inability to move beyond their past. They seem to be forever positioned in the earlier times of their lives. When Emily’s father died she refused to believe that he was dead; and for three days she told people that he was still alive. She would not allow anyone to bury him during those three days. Also, Emily never paid the taxes on her home because she was still under the impression that she did not owe any taxes. When men from the city came to collect her money she called them by the name of an old Colonel that was no longer alive. She tried to deny reality and live in the past. In comparison, Miss Brill’s life consists of putting on her fur, sitting on a bench, and watching the people around her. It was her daily routine that appears to never change. She never moved on with her life; and instead tried to live vicariously through others. The two protagonists were also very lonely and the objects that they clung to were dead. Emily lived in a big house with her father until he passed away and she was left alone. She did not have any friends and she never spoke to anyone who lived in her town. For the most part, she kept to herself until another man came into her life to fill the void of her father. She was afraid of losing him so she murdered him in order to hold on to him. Similarly, Miss Brill lived by herself and had no frien...