Research paper analyzing the writiing style of Stephen King Essay

Research paper analyzing the writiing style of Stephen King - Essay Example On the one hand, critics question King’s writing style as â€Å"The Comic Strip Effect† and â€Å"The Disgusting Colloquialism† (Hoppenstand and Browne 2). On the other hand, King is also praised for his â€Å"dazzling† storytelling skills (Hoppenstand and Browne 2). Since 1987, most of his novels were chief selections of the Book-of-the-Month Club, which in 1989 made the Stephen King Library, and is dedicated to keeping King’s novels â€Å"in print in hardcover† and some were even produced as films, such as The Shining (Badley et al. 1). This paper analyzes King’s writing style. King’s writing style is described as seeking to terrorize, horrify, and lead his readers to gross-some reactions, which magnifies his use of ethos and pathos, while having logos residing â€Å"between the lines.† Stephen King is the King of macabre; he spins stories from â€Å"American nightmares† (Hoppenstand and Browne 2). As the king in this genre, he has ethos or authority in the ghastly dimension of human experiences: â€Å"His work has changed the horror genre and blurred the lines between horror and literary fiction† (Dyson and Bloom 5). His ethos conceals the logos of his stories. He writes about stories of real human conditions that not all horror stories touch upon. King’s thoughts go beyond the archetypal. His â€Å"pop† awareness and his campy humor entice the collective unconscious (Badley et al. 4). In Danse Macabre, King stresses the â€Å"cross-pollination of fiction and film,† and he categorizes his subject into four â€Å"monster archetypes†: the ghost, the â€Å"thing† (or human-made monster), the vampire, and the werewolf (Badley et al. 4). He uses references from classic horror films of the 1930’s and the 1950’s pulp and film industries (Badley et al. 4). He combines the gothic novel, classical fables, Brothers Grimm folktales, and the oral tradition (Hohne 95). During this time, the characters doubt the myths but need them in their lives; horror is particularly comforting and â€Å"cathartic† and the narrator marries the roles of physician and priest into the witch doctor as â€Å"sin eater,† who takes over the culpability and fear of the culture (Badley et al. 4). As a result, Stephen re-creates old monsters by adding a new sense of mystique. In The Uses of Enchantment: The Meaning and Importance of Fairy Tales (1976), psychologist Bruno Bettelheim stresses that the enchantment and horrors of fairy tales present existential problems in forms children can understand. King’s paranormal horrors have comparable cathartic and informative roles for adults; â€Å"they externalize the traumas of life, especially those of adolescence† (Badley et al. 4). Danse Macabre represents the externalization of these traumas, as a way of coping and survival. People have to analyze and read between-the-lines, nevertheless, to understand the themes of survival and adaptation in some of King’s novels. King writes to terrorize readers. King’s critics say that his success relies on the â€Å"sensational appeal of his genre,† which King eagerly confesses, because he writes to â€Å"scare people† (Badley et al. 4). His fiction is explicit, maudlin, and at times, known for conventional plots (Badley et al. 4). In Carrie, he writes about the opposite of Cinderella. It is the macabre version of dreams that can hardly come true for a society that denigrates women like Carrie. Furthermore, King’s humor is frequently unsophisticated and â€Å"

Research Method Essay Example | Topics and Well Written Essays - 2000 words

Research Method - Essay Example However, the Internet, on the other hand, introduces a new world for unethical behaviour. Whereas e-commerce has undergone extensive growth in last 10 years, consumers concerns about ethical issues continue to increase, as well. Even many businesses and consumers are revelling in e-commerce; business issues linked to online purchasing and selling become the negative side of the matter. E-Commerce is the capability of an organisation to have a lively online presence that allows the organisation to carry out its business electronically, basically having an electronic/online shop. Goods/services can be advertised, vended and paid for all electronically devoid of the need for the buying to be processed by an actual human being (Shivani and Grewal 167). Because of the vastness of online advertising, a website can be open to millions of individuals the world over for almost zero cost and with information being capable of changing almost instantly, the website can, at all times, be updated with all the newest products to match with clients’ demands (Berthon et al 261). The major advantage of E-Commerce is its ability to offer safe shopping transactions through the internet and besides instant authentication, as well as validation of credit card transactions (Shivani and Grewal 167). Ethics, in contrast, is the branch of philosophy, which studies what is right and also what is wrong. Ethical rules are regulations to follow in people interactions with others and in their actions, which impact others. They apply to everyone and are meant to attain fine results for individuals and situations, in general; not only for ourselves, and not only for a single situation (Berthon et al 261). Business ethics is involved with the several ethical questions, which managers must tackle as part of their day to day business decision-making (Shivani and Grewal 167). Acting ethically is normally practical since most of

Multi-Campus ICT Equipment Virtualization Architecture

Multi-Campus ICT Equipment Virtualization Architecture Multi-campus ICT equipment virtualization architecture  for cloud and NFV integrated service Abstract- We propose a virtualization architecture for multicampus  information and communication technology (ICT)  equipment with integrated cloud and NFV capabilities. The  aim of this proposal is to migrate most of ICT equipment on  campus premises into cloud and NFV platforms. Adopting this  architecture would make most of ICT services secure and  reliable and their disaster recovery (DR) economically  manageable. We also analyze a cost function and show cost advantages of  this proposed architecture, describe implementation design  issues, and report a preliminary experimentation of NFV DR  transaction. This architecture would encourage academic  institutes to migrate their own ICT systems located on their  premises into a cloud environments. Keywords; NFV, Data Center Migration, Disaster Recovery,  Multi-campus network I. INTRODUCTION There are many academic institutions that have multiple  campuses located in different cities. These institutions need  to provide information and communication technology (ICT)  services, such as E-learning services, equally for all students  on each campus. Usually, information technology (IT)  infrastructures, such as application servers, are deployed at a  main campus, and these servers are accessed by students on  each campus. For this purpose, each local area network  (LAN) on each campus is connected to a main campus LAN  via a virtual private network (VPN) over a wide area  network (WAN). In addition, Internet access service is  provided to all students on the multi-campus environment. To access the Internet, security devices, such as firewalls and  intrusion detection systems (IDSs), are indispensable as they  protect computing resources from malicious cyber activities. With the emergence of virtualization technologies such  as the cloud computing[1] and network functions  virtualization (NFV)[2], [3], we expected that ICT  infrastructures such as compute servers, storage devices, and  network equipment can be moved from campuses to  datacenters (DCs) economically. Some organizations have  begun to move their ICT infrastructures from their own  premises to outside DCs in order to improve security,  stability, and reliability. Also, there are a lot of contributions  to archiving DR capabilities with cloud technologies [4], [5], [6]. Active-passive replication or active-active replication are  expected techniques that archive DR capabilities. In these  replications, a redundant backup system is required  dedicatedly at a secondary site. With migration recovery [4],  these backup resources can be shared among many users.   These studies mainly focus on the application servers. While,  integrated DR capability for ICT infrastructures, both  application and network infrastructures, are still immature.   We propose a multi-campus ICT equipment virtualization  architecture for integrated cloud and NFV capabilities. The  aim of this proposal is to migrate entire ICT infrastructures  on campus premises into cloud and NFV platforms.   Adopting this architecture for multi-campus networks would  improve access link utilization, security device utilization,  network transmission delay, disaster tolerance, and  manageability at the same time.   We also analyze the cost function and show cost  advantages of this proposed architecture.   To evaluate the feasibility of our proposed architecture,  we built a test bed on SINET5 (Science Information  NETwork 5) [7], [8], [9]. We describe the test-bed design,  and preliminary experimentation on reducing the recovery  time of VNF is reported. The rest of this paper is organized as follows. Section II  shows background of this work. Section III shows proposed  multi-campus network virtualization architecture. Section IV  shows an evaluation of the proposed architecture in terms of  cost advantages and implementation results. Section V  concludes the paper, and future work is discussed   II. BACKGROUND OF THIS WORK SINET5 is a Japanese academic backbone network for  about 850 research institutes and universities and provide  network services to about 30 million academic users.   SINET5 was wholly constructed and put into operation in  April 2016. SINET5 plays an important role in supporting a  wide range of research fields that need high-performance  connectivity, such as high-energy physics, nuclear fusion  science, astronomy, geodesy, seismology, and computer  science. Figure 1 shows the SINET5 architecture. It provides  points of presence, called SINET-data centers (DCs), and  SINET DCs are deployed in each prefecture in Japan. On  each SINET DC, an internet protocol (IP) router, MPLS-TP  system, and ROADM are deployed. The IP router  accommodates access lines from research institutes and  universities. All Every pairs of internet protocol (IP) routers  are connected by a paier of MPLS-TP paths. These paths  achieves low latency and high reliability. The IP routers and  MPLS-TP systems are connected by a 100-Gbps-based  optical path. Therefore, data can be transmitted from a  SINET DC to another SINET DC in up to 100 Gbps  throughput. In addition, users, who have 100 Gpbs access  lines, can transmit data to other users in up to 100 Gbps  throughput.   Currently, SINET5 provides a direct cloud connection  service. In this service, commercial cloud providers connect  their data centers to the SINET5 with high-speed link such as  10 Gbps link directly. Therefore, academic users can access  cloud computing resources with very low latency and high  bandwidth via SINET5. Thus, academic users can receive  high-performance computer communication between  campuses and cloud computing resources. Today, 17 cloud  service providers are directly connected to SINET5 and more  than 70 universities have been using cloud resources directly  via SINET5. To evaluate virtual technologies such as cloud computing  and NFV technologies, we constructed at test-bed platform  (shown as NFV platform in fig. 1) and will evaluate the  network delay effect for ICT service with this test bed. NFV  platform are constructed at four SINET-DCs on major cities  in Japan: Sapporo, Tokyo, Osaka, and Fukuoka. At each site,  the facilities are composed of computing resources, such as  servers and storages, network resources, such as layer-2  switches, and controllers, such as NFV orchestrator, and  cloud controller. The layer-2 switch is connected to a  SINET5 router at the same site with high speed link,  100Gbps. The cloud controller configures servers and  storages and NFV orchestrator configures the VNFs on NFV  platform. And user can setup and release VPNs between  universities, commercial clouds and NFV platforms  dynamically over SINET with on-demand controller. This  on-demand controller setup the router with NETCONF  interface. Also, this on-demand controller setup the VPN corelated  with NFV platform with REST interface.   Today there are many universities which has multiple  campus deployed over wide area. In this multi-campus  university, many VPNs (VLANs), ex hundreds of VPNs, are  desired to be configured over SINET to extend inter-campus  LAN. In order to satisfy this demand, SINET starts new  VPN services, called virtual campus LAN service. With this  service, layer 2 domains of multi-campus can be connected  as like as layer 2 switch using preconfigured VLAN rages   (ex. 1000-2000). III. PROPOSED MULTI-CAMPUS ICT EQUIPMENT  VIRTUALIZATION ARCHITECTURE In this section, the proposed architecture is described.   The architecture consists of two parts. First, we describe the  network architecture and clarify the issues with it. Next, a  NFV/cloud control architecture is described.   A. Proposed multi-campus network architecture   Multi-campus network architecture is shown in Figure 2.   There are two legacy network architectures and a proposed  network architecture. In legacy network architecture 1 (LA1),  Internet traffic for multiple campuses is delivered to a main  campus (shown as a green line) and checked by security  devices. After that, the internet traffic is distributed to each  campus (shown as a blue line). ICT Applications, such as Elearning  services, are deployed in a main campus and access  traffic to ICT application is carried by VPN over SINET  (shown as a blue line). In legacy network architecture 2  (LA2), the Internet access is different from LA1. The  Internet access is directly delivered to each campus and  checked by security devices deployed at each campus. In the  proposed architecture (PA), the main ICT application is  moved from a main campus to an external NFV/cloud DC.   Thus, students on both main and sub-campuses can access  ICT applications via VPN over SINET. Also, internet traffic  traverses via virtual network functions (VNFs), such as  virtual routers and virtual security devices, located at  NFV/cloud DCs. Internet traffic is checked in virtual security  devices and delivered to each main/sub-campus via VPN  over SINET. There are pros and cons between these architectures.   Here, they are compared across five points: access link  utilization, security device utilization, network transmission  delay, disaster tolerance, and manageability.   (1) Access link utilization The cost of an access link from sub-campus to WAN is  same in LA1, LA2 and PA. While, the cost of an access link  from a main campus to WAN of LA1 is larger than LA2 and PA because redundant traffic traverses through the link.   While, in PA, an additional access link from a NFV/cloud  DC to WAN is required. Thus, evaluating the total access link  cost is important. In this evaluation, it is assumed that  additional access links from NFV/cloud DCs to WAN are  shared among multiple academic institutions who use the  NFV/cloud platform and that the cost will be evaluated  taking this sharing into account. (2) Security device utilization LA1 and PA is more efficient than LA2 because Internet traffic is concentrated in LA1 and PA and a statistically multiplexed traffic effect is expected.  In addition to it, in PA, the amount of physical  computing resources can be suppressed because virtual  security devices share physical computing resources among  multiple users. Therefore, the cost of virtual security devices  for each user will be reduced. (3) Network transmission delay Network delay due to Internet traffic with LA1 is longer  than that with LA2 and PA because Internet traffic to subcampuses  is detoured and transits at the main campus in LA1,  however, in LA2, network delay of Internet to sub-campuses  is directly delivered from an Internet exchange point on a  WAN to the sub-campus, so delay is suppressed. In PA,  network delay can be suppressed because the NFV and cloud  data center can be selected and located near an Internet  access gateway on WAN. While, the network delay for ICT application services  will be longer in PA than it in LA1 and LA2. Therefore, the  effect of a longer network delay on the quality of IT  application services has to be evaluated.   (4) Disaster tolerance   Regarding Internet service, LA1 is less disaster tolerant  than LA2. In LA1, when a disaster occurs around the main  campus and the network functions of the campus go down,  students on the other sub-campuses cannot access the  internet at this time. Regarding IT application service, IT services cannot be  accessed by students when a disaster occurs around the main  campus or data center. While, in PA, NFV/cloud DC is  located in an environment robust against earthquakes and  flooding. Thus, robustness is improved compared with LA1  and LA2. Today, systems capable of disaster recovery (DR) are  mandatory for academic institutions. Therefore, service  disaster recovery functionality is required. In PA, back up  ICT infrastructures located at a secondary data center can be  shared with another user. Thus, no dedicated redundant  resources are required in steady state operation, so the  resource cost can be reduced. However, if VM migration  cannot be fast enough to continue services, active-passive or  active-passive replication have to be adopted. Therefore,  reducing recovery time is required to adapt migration  recovery to archive DR manageability more economically   (5) Manageability LA1 and PA is easier to manage than LA2. Because  security devices are concentrated at a site (a main campus or  NFV/cloud data center), the number of devices can be  reduced and improving manageability.   There are three issues to consider when adopting the PA.   Evaluating the access link cost of an NFV/cloud  data center. Evaluating the network delay effect for ICT services.   Evaluating the migration period for migration  recovery replication. B. NFV and cloud control architecture  For the following two reasons, there is strong demand to  use legacy ICT systems continuously. Thus, legacy ICT  systems have to be moved to NFV/cloud DCs as virtual  application servers and virtual network functions. One reason  is that institutions have developed their own legacy ICT  systems on their own premises with vender specific features.   The second reason is that an institutions work flows are not  easily changed, and the same usability for end users is  required. Therefore, their legacy ICT infrastructures  deployed on a campus premises should be continuously used  in the NFV/cloud environment. In the proposed multicampus  architecture, these application servers and network  functions are controlled by using per-user orchestrators.   Figure 3 shows the proposed control architecture. Each  institution deploys their ICT system on IaaS services. VMs  are created and deleted through the application interface  (API), which is provided by IaaS providers. Each institution  sets up an NFV orchestrator, application orchestrator, and  management orchestrator on VMs. Both active and standby  orchestrators are run in primary and secondary data centers,  respectively, and both active and standby orchestrators check  the aliveness of each other. The NFV orchestrator creates the  VMs and installs the virtual network functions, such as  routers and virtual firewalls, and configures them. The  application orchestrator installs the applications on VMs and  sets them up. The management orchestrator registers these  applications and virtual network functions to monitoring  tools and saves the logs outputted from the IT service  applications and network functions. When an active data center suffers from disaster and the  active orchestrators go down, the standby orchestrators  detect that the active orchestrators are down. They start  establishing the virtual network functions and application  and management functions. After that, the VPN is connected  to the secondary data center being co-operated with the VPN  controller of WAN. In this architecture, each institution can select NFV  orchestrators that support a users legacy systems.   IV. EVALUATION OF PROPOSED NETWORK ARCHITECTURE This section details an evaluation of the access link cost  of proposed network architecture. Also, the test-bed  configuration is introduced, and an evaluation of the  migration period for migration recovery is shown.   A. Access link cost of NFV/cloud data center  In this sub-section, an evaluation of the access link cost  of PA compared with LA1 is described.   First, the network cost is defined as follows.   There is an institution, u, that has a main campus and nu  sub-campuses. The traffic amount of institution u is defined as follows  different sites can be connected between a user site and cloud  sites by a SINET VPLS (Fig. 7). This VPLS can be dynamically established by a portal that uses the REST  interface for the on-demand controller. For upper-layer  services such as Web-based services, virtual network  appliances, such as virtual routers, virtual firewalls, and  virtual load balancers, are created in servers through the  NFV orchestrater. DR capabilities for NFV orchestrator is  under deployment. C. Migiration period for disaster recovery   We evaluated the VNF recovering process for disaster  recovery. In this process, there are four steps.   Step 1: Host OS installation Step 2: VNF image copy Step 3: VNF configuration copy Step 4: VNF process activation This process is started from the host OS installation because  there are VNFs that are tightly coupled with the host OS and  hypervisor. There are several kinds and versions of host OS,  so the host OS can be changed to suite to the VNF. After  host OS installation, VNF images are copied into the created  VMs. Then, the VNF configuration parameters are adjusted  to the attributions of the secondary data center environment  (for example, VLAN-ID and IP address), and the  configuration parameters are installed into VNF. After that,  VNF is activated. In our test environment, a virtual router can be recovered  from the primary data center to the secondary data center,  and the total duration of recovery is about 6 min. Each  duration of Steps 1-4 is 3 min 13 sec, 3 min 19 sec, 11 sec,  and 17 sec, respectively. To shorten the recovery time, currently, the standby VNF  is able to be pre-setup and activated. If the same  configuration can be applied in the secondary data center  network environment, snapshot recovering is also available.  In this case, Step 1 is eliminated, and Steps 2 and 3 are  replaced by copying a snap shot of an active VNF image,  which takes about 30 sec. In this case, the recovering time is  about 30 sec. V. CONCLUSION Our method using cloud and NFV functions can achieve  DR with less cost. We proposed a multi-campus equipment  virtualization architecture for cloud and NFV integrated  service. The aim of this proposal is to migrate entire ICT  infrastructures on campus premises into cloud and NFV  platforms. This architecture would encourage academic  institutions to migrate their own developed ICT systems located on their premises into a cloud environment. Adopting  this architecture would make entire ICT systems secure and  reliable, and the DR of ICT services could be economically  manageable. In addition, we also analyzed the cost function, and  showed a cost advantages of this proposed architecture  described implementation design issues, and reported a  preliminary experimentation of the NFV DR transaction/

Allen Ginsberg and American Protest Literature Essay -- American Protes

BUNEA VALENTIN LEONARD GROUP 3A, ENGLISH-AMERICAN STUDIES ALLEN GINSBERG,  ¡Ã‚ §HOWL ¡Ã‚ ¨ AND THE LITERATURE OF PROTEST   Ã‚  Ã‚  Ã‚  Ã‚  Allen Ginsberg (1926-1997) was an important figure in the Beat Generation Movement that took place right before the revolutionary American 60 ¡Ã‚ ¦s. Other major beat writers (also called  ¡Ã‚ §beatnicks ¡Ã‚ ¨) were: Gregory Corso, Jack Kerouac and William Burroughs. The beat poetry was meant to be oral and very effective in readings. It developed out of poetry readings in underground clubs.(a beautiful image of these secret clubs can be found in the movie called  ¡Ã‚ §Dead Poet ¡Ã‚ ¦s Society ¡Ã‚ ¨ with Robin Williams playing the main character). Some argued that it was the grandparent of rap music. The term  ¡Ã‚ §Beat Generation ¡Ã‚ ¨ was coined by Kerouac in the fall of the 1948 in New York City. The word  ¡Ã‚ §beat ¡Ã‚ ¨ referred loosely to their shared sense of spiritual exhaustion and diffuse feelings of rebellion against what they experienced as the general conformity, hypocrisy and materialism of a larger society around them caught up i n he unprecedented prosperity of postwar America.   Ã‚  Ã‚  Ã‚  Ã‚     Ã‚  Ã‚  Ã‚  Ã‚  The beat poetry was the most anticanon form of literature in the United States. The poetry is a cry of pain and rage, a howl at what the poets see as the loss of America ¡Ã‚ ¦s innocence and as a tragic waste.   Ã‚  Ã‚  Ã‚  Ã‚     Ã‚  Ã‚  Ã‚  Ã‚  Allen Ginsberg was born in Newark, New Jersey. His parents were second generation Russian- Jewish immigrants, left-wing radicals interested in Marxism, nudism, feminism, generally in the modern revolutionary ideas of his times. This background certainly did influence his evolution as a revolutionary poet. His father, Louis Ginsberg, was a teacher and a poet, whose work was published in New York Times. During Ginsberg ¡Ã‚ ¦s childhood, his mother, Naomi Ginsberg, started to suffer from paranoia. She was institutionalized and eventually lobotomized. She died in an asylum in 1956. her life is the subject one Allen ¡Ã‚ ¦s poem entitled  ¡Ã‚ §Kaddish ¡Ã‚ ¨ and which was written as a compensation of her funeral service.   Ã‚  Ã‚  Ã‚  Ã‚     Ã‚  Ã‚  Ã‚  Ã‚  After he graduated a public high school, Ginsberg won a scholarship from Columbia University where he became a famous student, making friends with Williams Burroughs and Jack Kerouac. An... ...p;  Ã‚   Ginsberg ¡Ã‚ ¦s style is not disciplined, but based on a spontaneous utterance of ideas, violating all the current artistic canons, provoking a literary and social scandal. The powerful  Ã‚  Ã‚  Ã‚  Ã‚  representations of the urban realities, of the language and matter of the urban streets were meant to induce powerful reactions of the reader. He brought the culture down to the level of streets and neighborhoods. That ¡Ã‚ ¦s why the language and the images are obscene, including symbolism and direct references to oral and anal sex, homosexuality and drug use. We can even say that the form of the poem seems to be a self exploration, shaped after his own life.   Ã‚  Ã‚  Ã‚  Ã‚  What Ginsberg manages to do is to freely express his attitudes the way they overwhelm him: defiance, longing, terror, hysteria, prayer, anger, joy, exhaustion, culminating with madness and suicide. BIBLIOGRAPHY: „ «Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  www.sparknotes.com „ «Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  www.questia.com „ «Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  UNITED STATES DEPARTMENT OF STATE-  ¡Ã‚ §OUTLINE OF AMERICAN LITERATURE ¡Ã‚ ¨ „ «Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  NORTON ANTHOLOGY

Apple brand Essay

Apple Inc. uses the Apple brand to compete across several highly competitive markets, including the personal computer industry with its Macintosh line of computers and related software, the consumer electronics industry with products such as the iPod, digital music distribution through its iTunes Music Store, the smart phone market with the Apple iPhone, magazine, book, games and applications publishing via the AppsStore for iPhone and the iPad tablet computing device, and movie and TV content distribution with Apple TV. For marketers, the company is also establishing a very strong presence to rival Google in the advertising market, via its Apps business and iAd network. Steve Jobs, Apple’s co-Founder, described Apple as a â€Å"mobile devices company† – the largest one in the world (Apple’s revenues are bigger than Nokia, Samsung, or Sony’s mobility business). For several years Apple’s product strategy involved creating innovative products and services aligned with a â€Å"digital hub† strategy, whereby Apple Macintosh computer products function as the digital hub for digital devices, including the Apple iPod, personal digital assistants, cellular phones, digital video and still cameras, and other electronic devices. More recently, the full impact of a very well throught out brand strategy has come into focus – and one in which customer experience is central: the Mac is no longer the hub of all things Apple. Now, Apple offers a harmonised, synchronised, and integrated user experience across all of its main devices (iPad, iPhone, and Mac), using iCloud as the hub. It is in the process of extending this experience outside Apple-controled environments by introducing deep integration with Facebook and Twitter on iPad, iPhone and Mac. Apple’s core competence is delivering exceptional experience through superb user interfaces. The company’s product strategy is based around this, with iTunes, the iPhone (with it’s touch screen â€Å"gestures† that are re-used on the iPad), and the Apple Apps store all playing key roles.

Alka-Seltzer tablets react with water Essay

Things tend to go wrong at higher temperatures because at higher temperatures (60iC+) the dissolved calcium hydrogen carbonate starts to decompose. This removes the temporary hardness and therefore removes the dissolved Ca2+ and Mg2+ ions, therefore making the test unfair because at lower temperatures there was hardness in the water. From the results obtained it has been seen that the rate of reaction increases as the temperature increases, supporting my hypothesis in which I stated that †As the temperature increases, so will the rate of reaction, but at higher temperatures the pattern (link) will break down (giving us unreliable results and the trend in the graph will show this). Therefore the Alka-Seltzer tablets dropped into the hottest water will dissolve the fastest. † As you can see from the graph, at 80i C the link breaks down, giving us a result that does not fit in with the general trend of results. This is not an anomalous result and there is a reason behind this. Things tend to go wrong at higher temperatures because at higher temperatures (60i C+) the dissolved calcium hydrogen carbonate starts to decompose. This removes the temporary hardness and therefore removes the dissolved Ca2+ and Mg2+ ions, therefore making the test unfair because at lower temperatures there was hardness in the water. The graph showing the time in seconds (rate of reaction), against the temperature shows the rate of reaction increasing with the temperature, and there is a curve that at first goes down steeply, but then becomes straighter. At 80i C the link breaks down, giving us an odd result, which can be explained by the fact that the Ca2+ and Mg2+ ions are removed due to the decomposing of the calcium hydrogen carbonate. As you can see from the graph and my table of results, the result obtained at 30i C is an anomalous result (i. e. it doesn’t follow the general trend). This again supports my hypothesis in which I stated this by saying that the link would break down giving us unreliable results. The link did not break down at 60i C as I had stated that it would because that is only the temperature at which the Ca2+ and Mg2+ ions started to decompose and once they had fully decomposed the results showed this. For the 1/time(s) against the temperature (i C) graph I got a straight line, which was the line of best fit. Again it shows how unreliable the results are at higher temperatures, as the results for 70i C and 80i C do not fit in.showing how the link breaks down due to dissolved substances in the water. This shows that the temperature is inversely proportional to the time. Also I predicted that as the temperature increased by 10i C the rate of reaction would approximately double. The results do not clearly show this happening, but I believe that it shows some signs of this happening. At 20i C the average time is 97. 5 seconds. When the temperature was increased to 30i C it approximately doubled (x 2. 17 to 3 significant figures) to 45 seconds. However this is an anomalous result and should be higher. Even so, this still supports my prediction. The next result obtained is for 40i C, which is 37 seconds. There is no sign of the rate doubling (x 1. 22 to 3 significant figures), but if we take into account that the previous result should have been higher, then it would appear to approximately double. From here onwards it does not double for every 10i C. This is due to my theory (scientific background knowledge) that things go wrong at higher temperatures due to the decomposing of calcium hydrogen carbonate at temperatures of 60i C and above. Evaluation: I have obtained a reliable set of results, with repeats of the evidence obtained. An accurate procedure was used, with this being shown by the results obtained which all agree with each other. By using a burette, it allowed me to work up to a very accurate degree of accuracy, rather than simply using a beaker or a measuring cylinder. However, I did use a measuring cylinder for repeat results and this did not seem to affect my results. I obtained one set of anomalous results. These were obtained for a temperature of 30i C and did not fit in with the general trend. According to the best-fit line on my graph, the rate of reaction should have been longer and it should have taken about 58 seconds for the Alka-Seltzer tablets to dissolve in water with a temperature of 30i C. A reason for me obtaining this anomalous result could have been due to the fact that whilst the reaction was taking place the 100ml beaker was still in the water bath. This would have caused the temperature to rise slowly and slowly increase the rate while the tablets were dissolving, therefore causing more collisions and increasing the rate. This did not happen however at higher temperatures, because the temperature of the water bath was about the same, and so it did not really have much effect, and it just kept the temperature constant (i. e. stopped it rising or falling). Although I tried my best to make the experiment perfect there were some unavoidable inaccuracies with the experiment. Firstly, when testing lower temperatures, the temperature of the water bath, which was much higher than the actual temperature being tested, caused a rapid increase in the temperature, or if it were lower it would cause it to decrease rapidly, especially when taken off the Bunsen. These gave us results for inaccurate temperatures to which were we testing. To overcome this problem, a thermostatic water bath would need to have been used, since it can be set to a certain temperature, and it will stop when it reaches there. Also it would mean that the solution inside it would reach the exact temperature or close to it. , and not increase or decrease once the water inside it has reached equilibration. Secondly, it was impossible to say when exactly the Alka-Seltzer tablets had completely dissolved and consistently decide this for every result obtained. This was a huge flaw in the experiment and affected the results in a big way. To overcome this problem a special piece of apparatus would be needed to decide exactly when they had dissolved each time and give us the same measure of consistency each time. To improve the quality of the results, the same piece of apparatus would have needed to be used throughout the whole experiment, and not changed for repeat results. To extend my inquiry and provide additional evidence for this experiment, I think that I could have investigated up to higher temperatures and see how the link would break down, and how the results would fit in with the trend of results. Also, it would have helped me to see how the decomposing of the dissolved substances affected the results. To improve the experiment and make it fair, distilled water should have been used instead of tap water because it is purer than tap water and does not contain impurities.