Wednesday, November 27, 2019
Free Essays on Spine
Functional Goals following SCI - Basic SCI - Functional Goals for Specific Levels of Complete Injury Level Abilities Functional Goals C1-C3 C3-limited movement of head and neck Breathing: Depends on a ventilator for breathing. Communication: Talking is sometimes difficult, very limited or impossible. If ability to talk is limited, communication can be accomplished independently with a mouth stick and assistive technologies like a computer for speech or typing. Effective verbal communication allows the individual with SCI to direct caregivers in the person's daily activities, like bathing, dressing, personal hygiene, transferring as well as bladder and bowel management. Daily tasks: Assistive technology allows for independence in tasks such as turning pages, using a telephone and operating lights and appliances. Mobility: Can operate an electric wheelchair by using a head control, mouth stick, or chin control. A power tilt wheelchair also for independent pressure relief. C3-C4 Usually has head and neck control. Individuals at C4 level may shrug their shoulders Breathing: May initially require a ventilator for breathing, usually adjust to breathing full-time without ventilatory assistance. Communication: Normal. Daily tasks: With specialized equipment, some may have limited independence in feeding and independently operate an adjustable bed with an adapted controller. C5 Typically has head and neck control, can shrug shoulder and has shoulder control. Can bend his/her elbows and turn palm Daily tasks: Independence with eating, drinking, face washing, brushing of teeth, face shaving and hair care after assistance in setting up specialized equipment. Health care: Can manage their own health care by doing self-assist coughs and pressure reliefs by leaning forward or side -to-side. Mobility: May have strength to push a manual wheelchair for short distances over smooth surfaces. A power wheelchair with hand contr... Free Essays on Spine Free Essays on Spine Functional Goals following SCI - Basic SCI - Functional Goals for Specific Levels of Complete Injury Level Abilities Functional Goals C1-C3 C3-limited movement of head and neck Breathing: Depends on a ventilator for breathing. Communication: Talking is sometimes difficult, very limited or impossible. If ability to talk is limited, communication can be accomplished independently with a mouth stick and assistive technologies like a computer for speech or typing. Effective verbal communication allows the individual with SCI to direct caregivers in the person's daily activities, like bathing, dressing, personal hygiene, transferring as well as bladder and bowel management. Daily tasks: Assistive technology allows for independence in tasks such as turning pages, using a telephone and operating lights and appliances. Mobility: Can operate an electric wheelchair by using a head control, mouth stick, or chin control. A power tilt wheelchair also for independent pressure relief. C3-C4 Usually has head and neck control. Individuals at C4 level may shrug their shoulders Breathing: May initially require a ventilator for breathing, usually adjust to breathing full-time without ventilatory assistance. Communication: Normal. Daily tasks: With specialized equipment, some may have limited independence in feeding and independently operate an adjustable bed with an adapted controller. C5 Typically has head and neck control, can shrug shoulder and has shoulder control. Can bend his/her elbows and turn palm Daily tasks: Independence with eating, drinking, face washing, brushing of teeth, face shaving and hair care after assistance in setting up specialized equipment. Health care: Can manage their own health care by doing self-assist coughs and pressure reliefs by leaning forward or side -to-side. Mobility: May have strength to push a manual wheelchair for short distances over smooth surfaces. A power wheelchair with hand contr...
Saturday, November 23, 2019
Fascinating Tufted Titmouse Facts
Fascinating Tufted Titmouse Facts The tufted titmouse (Baeolophus bicolor) is a small, gray-plumed songbird, easily recognized for the crest of gray feathers atop its head, its big black eyes, black forehead, and its rust-colored flanks. They are quite common throughout the eastern part of North America, so if youre in that geographical region and want to catch a glimpse of a tufted titmouse, it may not be that difficult to find. Fast Facts: Tufted Titmouse Scientific Name: Baeolophus bicolorCommon Names: Tufted titmouseBasic Animal Group: BirdSize: 5.9ââ¬â6.7 inchesWeight: 0.6ââ¬â0.9 ounceà Lifespan: 2.1ââ¬â13 yearsDiet: OmnivoreHabitat: Southeastern, eastern, and midwestern United States, southern Ontario (Canada)Population: Hundreds of thousands or millionsConservation Status:à Least Concern Description Male and female titmice have similar plumage, which makes identification a little bit easier, and titmice can be tempted to backyard bird feeders, so you may not have to go far at all to see one. Tufted titmice exhibit some distinct physical characteristics that make them easy to identify; these traits are easily spotted under most conditions and are not shared by too many other species within their range. The key physical characteristics to watch for when trying to identify a tufted titmouse include: Gray crestBlack forehead and billLarge, black eyesRusty-orange flanks The characteristics listed above are most useful in confirming that the bird youre looking at is a tufted titmouse. But you can also look for other field marks characteristic of the species, which include: Overall gray color, with darker gray upperparts and lighter gray on breast and bellyLight gray legs and feetMedium-length, gray tail (about one third its entire length, head to tail) Habitat and Distribution Populations of tufted titmice stretch from the East Coast of the United States westward to the Plains of central Texas, Oklahoma, Nebraska, Kansas, and Iowa. The highest population densities of tufted titmice occur along the Ohio, Cumberland, Arkansas, and Mississippi rivers. Within their range, there are certain habitats that tufted titmice prefer- they are most common in deciduous and mixed-deciduous forests, especially those with a dense canopy or tall vegetation. Tufted titmice also occur to a lesser extent in suburban areas, orchards, and wetlands and can be spotted at backyard bird feeders on occasion, during the fall and winter months. Diet and Behavior Tufted titmice feed on insects and seeds. They forage on trees and can be seen on trunks and limbs looking for insects in the crevices of the bark. They also forage on the ground. Throughout the year, their preferred foraging locations can change. In summer months they spend more time foraging in the canopy of a tall tree, while in winter they can be spotted on trunks and in shorter trees more often. When cracking open nuts and seeds, tufted titmice hold the seed in their feet and hammer them with their bill. tufted titmice feed on a variety of invertebrates including caterpillars, beetles, ants, wasps, bees, treehoppers, spiders and snails. When feeding at backyard bird feeders, tufted titmice have a fondness for sunflower seeds, nuts, suet, and mealworms. Tufted titmice move along branches and over the ground by jumping and hopping. When flying, their flight path is direct and not undulating. The song of the tufted titmouse is usually a clear, two-syllable whistle: peter peter peter peter. Their call is nasal and consists of a series of sharp notes: ti ti ti sii sii zhree zhree zhree. Reproduction and Offspring Tufted titmice breed between March and May. The female generally lays between five and eight brown-speckled eggs in nests that are 3 to 90 feet high. They line their nests with soft materials such as wool, moss, cotton, leaves, bark, fur, or grass. The female incubates the eggs for 13 to 17 days. Tufted titmice typically have one or two broods each season. The young of the first brood usually help care for the nestlings of the second brood. Most of the hatchlings die shortly after birth, but if they survive, they can live for more than two years. The oldest tufted titmouse on record lived to be 13 years old. The tufted titmouse is fully mature and ready for reproduction by age 1. vanderveldenà / Getty Images Conservation Status The IUCN classifies the tufted titmouses conservation status as least concern.à Researchers place the number of tufted titmice in the hundreds of thousands or millions. Their numbers have increased slightly in the past few decades, about 1 percent, and they have moved northward, from the southeastern U.S. to the New England region and Ontario, Canada. Since they are among the larger species of birds, competition is not thought to be a factor, but they may be moving northward to areas where there are more dense populations of trees due to climate change. Sources Tufted Titmouse.â⬠à Animal Spot.ââ¬Å"Tufted Titmouse.â⬠à Tufted Titmouse - Introduction | Birds of North America Online.Watt DJ. 1972. Comparison of the foraging behaviors of the Carolina Chickadee and Tufted Titmouse in northwestern Arkansas. M.Sc. thesis, Univ. Arkansas, Fayetteville.
Thursday, November 21, 2019
Limited Warfare Essay Example | Topics and Well Written Essays - 750 words
Limited Warfare - Essay Example In the contemporary world, political and strategic failures, fiscal constraints, and the growing military power of nations globally are dictating the existence of limited warfare. Limited war entails that, destruction of an enemy need not be complete in material trait, but lead to a poise of the power structure, in which the power of rivaling groups, results toward stability. A limited war is one which involves nations that are at war but weapons such as nuclear weapons are not involved. The limited war is aimed to preserve several resources of a nation to be applied elsewhere or use part of resources to attain the desired objectives. The limited war seeks lesser objectives and not the annihilation of the adversary; its goals are limited to issues such as swings in political behavior. However, like other wars the limited war involved a foe and enmity and it is less refined that it was in the 18th century. There have been numerous limited wars witnessed in the world history which incl ude; the American Indian war, the Afghanistan war, the Libyan war and to some extent the Vietnam War. In some of these wars although Washington applied limited character it was evident that its main aim was to oust the regimes (Slim, 173). Political and Military Implications The political description of the aims is with conversion into military purposes. It would be hard, sometimes vague and tortuous, yet its victory is truly vital to the achievement of the political aims. Key military notions relating to the wished end product such as military conquest are changed to reflect a much important political emphasis. There exist Rapid resolution making and military response. The successful result of such a war centers on the ability to respond rapidly to a developing calamity, which most often explodes by surprise. This would be a key dispute for the military. Organizing and maintaining home and global political support. Military actions in the present age of precision and honesty need p olitical legality (Slim, 213). In that most significant issues are evasion of victims on both sides and reduction of collateral harm. It is crucial to maintain the military management in the defense and tactical decision-making circle and uphold a straight politico-military boundary. Militarily, the greatest dispute could arise in the political unwillingness to entrust a pro-active commitment and persistence. These would be to keep the authority for endorsing not just key military progress but also many operational resolutions concerning to operation and service of military resources. Political and military necessities will necessitate heavy dependence on acumen, watch and investigation. Use of ground forces across the boundaries could be dejected, or held up, due to fear of victims and complexity in disengagement. Information operations turn out to be important. The political necessities of the military operations, in order to attain and keep the ethical high ground and refute that to the opponent, would need a complete and complicated media, public associations and information campaign (Slim, 214). This needs full incorporation and harmonization with the preparation and implementation of the military operations. Mental warfare has existed as a part of typical war it gets significance now. Limited conformist war need to consider counter involvement and protective measures. The so called cold start
Tuesday, November 19, 2019
History of the Department Store Essay Example | Topics and Well Written Essays - 1750 words
History of the Department Store - Essay Example As our cities changed, the department store changed to meet the needs of the new demographics. While some suburbs flourished, inner cities fell into decline. By examining the history of the department store we can get a better look at the evolution of our American cities, and create a more effective plan for their future. The department store had its beginnings in New York when A T Stewart opened his legendary Marble Palace in 1846. This would be followed by Lord & Taylor, Macy's, Marshall Field, and Wanamaker who spared no luxury in opulent buildings, window displays, and the quality of merchandise. By the turn of the twentieth century the department store had become the hub of American inner city commerce. Owned by giants such as R. H. Macy, Marshall Fields, and A. T. Stewart, the stores reflected the name and reputation of their owners. The department store concept catapulted the owners to fame and notoriety as a1900 account of A T Stewart refers to him as "the acknowledged head of the mercantile world in this city and the sights on New York included AT Stewarts marble store downtown and Stewart's marble palace uptown" (From cellar to garret, 1900). These men that pioneered the department store helped define the geography of our cities and shape the demographics of consumerism. Department stores were created when the ability to move goods to a central location coincided with the ability to move customers to that location. Department stores were unique in their ability to offer a huge array of goods under one roof arranged in departments. "Such large retailers only became feasible when the horsecar or streetcar could deliver crowds to the central city. Department stores exploited economies in purchasing and distributing to a large market, which made them cheaper than the alternative, local neighborhood stores" (Nye, 1990, p.113). In addition, the stores utilized the concept of fixed pricing, which eliminated the need to haggle or bargain on a price. This would open the door for relatively inexperienced salesclerks that were often women. Of course, the success of the department store would be dependent upon attracting enough customers to make it a profitable venture. The introduction of the trolley car and railroad made this possible. The early department sto res were located along these lines of transportation and created the core of commerce and the inner city. In Chicago, P. Palmer ran a dry goods and carpet store in the downtown area and had foreseen the coming of the department store, and the importance of the inner city, with the success of the Marble Palace and Macy's in New York. "Palmer had correctly foreseen that State Street would become the burgeoning city's new central business district because of its location near an important transportation junction, and he invested wisely in real estate there" (Benes, 2006, p.72). In 1893, Marshall Field opened a store on Palmer's property amid the fanfare of the 1893 World's Columbian Exposition. The store was an instant success as, "People would visit the store and then go home and tell their neighbors about it. The neighbors would come to marvel at the huge store-and to buy its rare and high-quality goods" (Benes, 2006, p.72). These department stores located in downtown areas would attract other
Sunday, November 17, 2019
Comparing the Republic to the Modern Society Essay Example for Free
Comparing the Republic to the Modern Society Essay The relevance of The Republic to our modern society In Platoââ¬â¢s The Republic, Plato illustrates what his ideal city would look like. He describes the educational systems, ideal legislators and the purposes of democracy. The republic influenced many people to understand the purpose for democracy, and it led to new philosophical schools of thought. Although this work was written hundreds of years ago, it still affects our modern world today. One of the most important things that Plato stresses is the importance of education. Without education of the masses, democracy would cease to exist. When Plato was forming his ideal society, he stressed the importance of education for several reasons. Most importantly, educating citizens led to a peaceful, well-run republic. For Plato, education was not about information intake and data storage. Rather, education was drawing out the knowledge that was already in the student. He said that ââ¬Å"the power and capacity of learning exists in the soul alreadyâ⬠He gives an allegory of prisoners in a cave, who have never seen light before. They become free, come out of the cave and see the light. They understand that the shadows are just reflections of real things; they are not the real things themselves. They ascend up to a mountain and see the world for what it really is. Plato uses this story to illustrate what education does for the human soul. We are all born in a dark cave, chained to a wall and cannot see the light. We still around all day looking at shadows, which appear to be so real to us. Education breaks the chains of ignorance. We can ascend to the top of the mountain and look out onto the beautiful world. According to Plato, after the prisonersââ¬â¢ ascend all the way to the top of the mountain, ââ¬Å"they must be made to descend again among the prisonersââ¬â¢ in the den and partake in labors and honors, whether worth having or not. â⬠Plato notes that once a person is educated and has received knowledge and truth, they should go back and teach those who do not know. This still relevant today because we need to not be so focused on how high we climb up the ladder, but we need to be concerned with how we help others achieve their goals. This allegory is also used to describe justice. The prisonersââ¬â¢ in the cave do not know what real justice looks like. The people on the mountain tops must come down and give understanding to those who are lacking it. Plato goes on to describe the type of leader that would be perfect to run the ideal city. The type of leader that Plato describes is someone who is ââ¬Å"wisest about the affairs of the state, and by whom the state is best administered and who at the same time have other honors and a better life then that of politics. ââ¬Å" The ideal leader in Platoââ¬â¢s time is not much different from the ideal leader in our time period. We still want someone who knows and understands the problems of the state or country, who will be a good leader, and will be able to put the welfare of his people before his own. These characteristics are still what many people look for in a dependable leader. Plato describes that a good leader should not be caught up in their own wealth, they should care about their people. This is a very foundational idea that is still important in America today. We desire to have a leader who will be humble and care for us, instead of one that has a hidden agenda. According to Plato, economic self-interest and political power must be kept separate and not be allowed to work in combination to the disadvantage of the state. In mapping out his utopian society, Plato stresses the importance of democracy. In a short piece called democracy considered, Plato talks about how oligarchies decay into democracies and democracies decay into tyranny. Tyranny is formed from pursing oneââ¬â¢s pleasures and appetites. Plato claims that ââ¬Å"a man who is deranged and not right in his mind will fancy that he is able to rule, not only over men, but also over gods ââ¬Å"He describes here that a man can not be a leader if he is deranged and thinks that he is the center of the universe. Plato then shows how democracy and tyranny differ. In describing the differences, Glacon says ââ¬Å"They are the opposite extremes for one is the very best and the other is the very worst. â⬠The republic shows many similarities to todayââ¬â¢s society. We still have many of the same ideals in education and in government. This piece of work was criticized at the time it was written by is now honored and very influential. It was one of the first writings that began western thinking and formed many new beliefs that influenced the renaissance.
Thursday, November 14, 2019
What makes a good website :: essays research papers
What makes a good website? à à à à à à à à à à à à à à à à à à à à à à à à à à à à à à à à à à à Introduction In my opinion what makes a good web page? I have been on the net for the last, canââ¬â¢t really believe it, coming to ten years now. From the conception to now, I have been a regular surfer on the web, visiting thousands of pages a month, mostly in search of some thing or another. Most searches have lead to even more searches but some times I come up tops. Having been used to the all text sites of the beginning, and seeing the first implementations of more graphic based sites, there was a three-year lapse where I rarely got to surfing and missed a whole evolution in web page. When I returned in full to surfing, I discovered the face of the internet have started to change. Buttons with pictures, navigation systems, some that even worked, all and all better thought out sites that where pleasing to look at and better to work with. This was probably due to the introduction of java script and more complex versions of html. Before then what made a sight good or bad, for me, was more bas ed on contents. As this change came to be my expectations of sites changed as well. When, at first, we where happy to have hyperlinked, underlined blue text, now we expect to have a good, easy to use, constant navigation system. Where bad resolution bitmaps where the norm, now we want smooth animated graphics. The way we use the internet have changed with the advances in technology, so changing our expectations and creating a whole new set of problems for anyone, from the big spenders to backroom designers, how to get our attention and how to keep us coming back. First impressions: The first thing that I look for in a web site is definitely something to draw my attention. I am not picky, but it normally comes in the style of some sort of graphic. Will it be the company logo, background image, or even just the colour used in the background, any of them can make me take a second look and so giving the designer a chance to get me into the rest of the site. The newer sites these days come with splash pages, advertising to you what you can expect on the inside, but like all advertising can become its own undoing by either chasing you away in the first place or misrepresenting what you are going to find there.
Tuesday, November 12, 2019
Mobile Crushing Plant Arrived at Philippines Quarry Essay
Last week, a good news came from Philippines that the customer who had ordered DSMAC mobile crushing plant for his quarry is satisfied with the final sand crushed by the crusher. Early since September 2012, the Philippines customer consulted on DSMAC official website about the crushing equipment. Aiming to the existing problem of serious wear and the quarryââ¬â¢s position of suburb, the enterprise engineer recommended the mobile crushing plant. At the end of 2012, the30tph mobile crushing plant was exported to Philippines successfully. The whole crushing plant includes: Hopper+ PE400*600 jaw crusher + PYT900 cone crusher + 2YK1245 circular vibrating screen + belt conveyor Besides, the equipped Commins diesel generator, hydraulic pressure unit and frequency conversion control cabinet, and so on are also sent to the customer. On 13th December, DSMAC two engineers are sent to Philippines customer site. On 22th, the mobile crushing plant began to operate successfully, and the crushed sand has good shape and high cleanness, which makes the customer satisficed. Mobile crushing plant is often mainly used forsand making line and construction waste crushing line. This crushing station has the features of convenient and stong mobility, saving lots of infrastructure and removal cost and the materialsââ¬â¢ transportation cost, because this crushing station can work in complicated terrain and move with raw materialsââ¬â¢ mining fields. DSMAC mobile crusher integrates primary crushing and secondary crushing closely, and realize the less occupation, convenient installation and automation. Therefore, the mobile crushing plant is always liked by owners of quarry and construction waste processing plant at home and abroad. Besides, there are also variety of stationary crushers, production lines, feeders and screens, ore crushers, crusher spare parts, and so on. The customers who are in need of crushing equipment can visite the website http://www.sandmakingplants.com/ About DSMAC Founded in 1997, DSMAC Group is a China leading crusher and sand making machine manufacturer with a complete line of crushing, grinding and screening equipment. We boast an extensive product range, and our impressive 128,000 square meter factory space is fully equipped with CNC machines, spectrometers, welding machines imported from Germany, and more, to efficiently meet your requirements. Contact Information DSMAC GroupJanet ZhangPhone: +86-371-6789-7680 E-mail: janet@dscrusher.com
Sunday, November 10, 2019
Advantages and Disadvantages of Normal Lan vs. Wireless Lan
Advantages and disadvantages of normal LAN vs. wireless LAN. Computer networks for the home and small business can be built using either wired or wireless technology. Wired Ethernet has been the traditional choice in homes, but Wi-Fi wireless technologies are gaining ground fast. Both wired and wireless can claim advantages over the other; both represent viable options for home and other local area networks (LANs). Below we compare wired and wireless networking in five key areas: â⬠¢ease of installation â⬠¢total cost â⬠¢reliability â⬠¢performance â⬠¢security About Wired LANs Wired LANs use Ethernet cables and network adapters. Although two computers can be directly wired to each other using an Ethernet crossover cable, wired LANs generally also require central devices like hubs, switches, or routers to accommodate more computers. For dial-up connections to the Internet, the computer hosting the modem must run Internet Connection Sharing or similar software to share the connection with all other computers on the LAN. Broadband routers allow easier sharing of cable modem or DSL Internet connections, plus they often include built-in firewall support. Installation Ethernet cables must be run from each computer to another computer or to the central device. It can be time-consuming and difficult to run cables under the floor or through walls, especially when computers sit in different rooms. Some newer homes are pre-wired with CAT5 cable, greatly simplifying the cabling process and minimizing unsightly cable runs. The correct cabling configuration for a wired LAN varies depending on the mix of devices, the type of Internet connection, and whether internal or external modems are used. However, none of these options pose any more difficulty than, for example, wiring a home theater system. After hardware installation, the remaining steps in configuring either wired or wireless LANs do not differ much. Both rely on standard Internet Protocol and network operating system configuration options. Laptops and other portable devices often enjoy greater mobility in wireless home network installations (at least for as long as their batteries allow). Cost Ethernet cables, hubs and switches are very inexpensive. Some connection sharing software packages, like ICS, are free; some cost a nominal fee. Broadband routers cost more, but these are optional components of a wired LAN, and their higher cost is offset by the benefit of easier installation and built-in security features. Reliability Ethernet cables, hubs and switches are extremely reliable, mainly because manufacturers have been continually improving Ethernet technology over several decades. Loose cables likely remain the single most common and annoying source of failure in a wired network. When installing a wired LAN or moving any of the components later, be sure to carefully check the cable connections. Broadband routers have also suffered from some reliability problems in the past. Unlike other Ethernet gear, these products are relatively new, multi-function devices. Broadband routers have matured over the past several years and their reliability has improved greatly. Performance Wired LANs offer superior performance. Traditional Ethernet connections offer only 10Mbps bandwidth, but 100 Mbps Fast Ethernet technology costs little more and is readily available. Although 100 Mbps represents a theoretical maximum performance never really achieved in practice, Fast Ethernet should be sufficient for home file sharing, gaming, and high-speed Internet access for many years into the future. Wired LANs utilizing hubs can suffer performance slowdown if computers heavily utilize the network simultaneously. Use Ethernet switches instead of hubs to avoid this problem; a switch costs little more than a hub. Security For any wired LAN connected to the Internet, firewalls are the primary security consideration. Wired Ethernet hubs and switches do not support firewalls. However, firewall software products like ZoneAlarm can be installed on the computers themselves. Broadband routers offer equivalent firewall capability built into the device, configurable through its own software. About Wireless LANs Popular WLAN technologies all follow one of the three main Wi-Fi communication standards. The benefits of wireless networking depend on the standard employed: â⬠¢802. 11b was the first standard to be widely used in WLANs. â⬠¢The 802. 11a standard is faster but more expensive than 802. 11b; 802. 11a is more commonly found in business networks. â⬠¢The newest standard, 802. 11g, attempts to combine the best of both 802. 1a and 802. 11b, though it too is more a more expensive home networking option. Installation Wi-Fi networks can be configured in two different ways: â⬠¢Ã¢â¬ Ad hocâ⬠mode allows wireless devices to communicate in peer-to-peer mode with each other. â⬠¢Ã¢â¬ Infrastructureâ⬠mode allows wireless devices to comm unicate with a central node that in turn can communicate with wired nodes on that LAN. Most LANs require infrastructure mode to access the Internet, a local printer, or other wired services, whereas ad hoc mode supports only basic file sharing between wireless devices. Both Wi-Fi modes require wireless network adapters, sometimes called WLAN cards. Infrastructure mode WLANs additionally require a central device called the access point. The access point must be installed in a central location where wireless radio signals can reach it with minimal interference. Although Wi-Fi signals typically reach 100 feet (30 m) or more, obstructions like walls can greatly reduce their range. Cost Wireless gear costs somewhat more than the equivalent wired Ethernet products. At full retail prices, wireless adapters and access points may cost three or four times as much as Ethernet cable adapters and hubs/switches, respectively. 802. 1b products have dropped in price considerably with the release of 802. 11g, and obviously, bargain sales can be found if shoppers are persistent. Reliability Wireless LANs suffer a few more reliability problems than wired LANs, though perhaps not enough to be a significant concern. 802. 11b and 802. 11g wireless signals are subject to interference from other home applicances including microwave ovens, cordless tel ephones, and garage door openers. With careful installation, the likelihood of interference can be minimized. Wireless networking products, particularly those that implement 802. 11g, are comparatively new. As with any new technology, expect it will take time for these products to mature. Performance Wireless LANs using 802. 11b support a maximum theoretical bandwidth of 11 Mbps, roughly the same as that of old, traditional Ethernet. 802. 11a and 802. 11g WLANs support 54 Mbps, that is approximately one-half the bandwidth of Fast Ethernet. Furthermore, Wi-Fi performance is distance sensitive, meaning that maximum performance will degrade on computers farther away from the access point or other communication endpoint. As more wireless devices utilize the WLAN more heavily, performance degrades even further. Overall, the performance of 802. 11a and 802. 11g is sufficient for home Internet connection sharing and file sharing, but generally not sufficient for home LAN gaming. The greater mobility of wireless LANs helps offset the performance disadvantage. Mobile computers do not need to be tied to an Ethernet cable and can roam freely within the WLAN range. However, many home computers are larger desktop models, and even mobile computers must sometimes be tied to an electrical cord and outlet for power. This undermines the mobility advantage of WLANs in many homes. Security In theory, wireless LANs are less secure than wired LANs, because wireless communication signals travel through the air and can easily be intercepted. To prove their point, some engineers have promoted the practice of wardriving, that involves traveling through a residential area with Wi-Fi equipment scanning the airwaves for unprotected WLANs. On balance, though, the weaknesses of wireless security are more theoretical than practical. WLANs protect their data through the Wired Equivalent Privacy (WEP) encryption standard, that makes wireless communications reasonably as safe as wired ones in homes. No computer network is completely secure and homeowners should research this topic to ensure they are aware of and comfortable with the risks. Important security considerations for homeowners tend to not be related to whether the network is wired or wireless but rather ensuring: â⬠¢the home's Internet firewall is properly configured â⬠¢the family is familiar with the danger of Internet ââ¬Å"spoof emailsâ⬠and how to recognize them â⬠¢the family is familiar with the concept of ââ¬Å"spywareâ⬠and how to avoid it â⬠¢babysitters, housekeepers and other visitors do not have unwanted access to the network Conclusion You've studied the analysis and are ready to make your decision. Bottom line, then, which is better ââ¬â wired or wireless? The table below summarizes the main criteria we've considered in this article. If you are very cost-conscious, need maximum performance of your home system, and don't care much about mobility, then a wired Ethernet LAN is probably right for you. If on the other hand, cost is less of an issue, you like being an early adopter of leading-edge technologies, and you are really concerned about the task of wiring your home or small business with Ethernet cable, then you should certainly consider a wireless LAN. Wired vs Wireless Wired Wireless Installationmoderate difficultyeasier, but beware interference Cost less more Reliability High Reasonably high Performancevery good good Security reasonably good reasonably good Mobility limited outstanding
Thursday, November 7, 2019
Computers Are Making Users Sick â⬠Health and Safety Essay
Computers Are Making Users Sick ââ¬â Health and Safety Essay Free Online Research Papers Computers Are Making Users Sick Health and Safety Essay Almost half of all PC users in the UK have experienced health problems caused by using computers, research has found. According to a poll conducted by computer retailer PC World, eye strain was the most common problem associated with computer use, suffered by 25 per cent of users. About 15 per cent had experienced back pain, while headaches were experienced by 14 per cent of users. Of those surveyed, 11 per cent cited wrist pain and 10 per cent shoulder pain caused by prolonged PC use. A PC World representative said that health and safety guidelines introduced in UK businesses had not trickled down to home users. ââ¬Å"Itââ¬â¢s too easy to compromise your health. Adopting a simple routine of looking up, easing up or stretching and ultimately getting away from the PC can help you to avoid some of the aches and pains caused by extended use,â⬠he said. In an average day, 18 per cent of people spend two or more hours using a PC at home, and 15 per cent at work. Two in five respondents took no breaks in two hours of PC usage. Respondents were also asked whether they used any of a range of products including flat-screen monitors, which help minimise eye strain, and ergonomic keyboards and mousemats. The majority of home users, 59 per cent used none of these products, with 54 per cent at work also using none. The most popular product was the mousemat with wrist rest, with 27 per cent of home PC users and 31 per cent at work using these products. Monitor screens designed to minimise glare were used by 14 per cent at home while six per cent were using ergonomic keyboards. In conjunction with the charity AbilityNet, PC World said it would launch a campaign to raise awareness of good computing practice to minimise the health risks associated with PC use.AbilityNet hopes to raise awareness of the health risks of PC use. Research Papers on Computers Are Making Users Sick - Health and Safety EssayInfluences of Socio-Economic Status of Married MalesTwilight of the UAWMarketing of Lifeboy Soap A Unilever ProductGenetic EngineeringThe Project Managment Office SystemNever Been Kicked Out of a Place This NiceIncorporating Risk and Uncertainty Factor in CapitalThe Relationship Between Delinquency and Drug UseHip-Hop is ArtDefinition of Export Quotas
Tuesday, November 5, 2019
Information on Arizona Education and Schools
Information on Arizona Education and Schools When it comes to education and schools, each state takes its own unique approach. For the most part, state governments and local school boards develop educational policy and mandates that shape education and schools within state and local boundaries. Though there is some Federal oversight, most highly debated education regulations are shaped more closely to home. Trending educational topics such as charter schools, standardized testing, school vouchers, teacher evaluations, and state adopted standards typically align with the controlling political parties philosophy. These differences have made it difficult to compare education and schools between states accurately.Ã They also ensure that a student living in a particular state will be receiving at least a somewhat different education that a like student in a surrounding state. There are many data points that can be used to compare education and schools among states. Though it is a difficult endeavor, you can begin to see differences in educational quality by looking at shared data in regards to education and schools among all states. This profile of education and schools focuses on the state of Arizona. Arizona Education and Schools Arizona State Department of Education Arizona State Superintendent of Schools:Ã Diane Douglas District/School Information Length of School Year: A minimum of 180 school days is required by Arizona state law. Number of Public School Districts: There are 227 public school districts in Arizona. **** Number of Public Schools: There are 2421 public schools in Arizona. **** Number of Students Served in Public Schools: There are 1,080,319 public school students in Arizona. **** Number of Teachers in Public Schools: There are 50,800 public school teachers in Arizona.**** Number of Charter Schools: There are 567 charter schools in Arizona. Per Pupil Spending: Arizona spends $7,737 per pupil in public education. **** Average Class Size: The average class size In Arizona is 21.2 students per 1 teacher. **** % of Title I Schools: 95.6% of schools in Arizona are Title I Schools.**** % With Individualized Education Programs (IEP): 11.7% of students in Arizona are on IEPs. **** % in Limited-English Proficiency Programs: 7.0% of students in Arizona are in limited-English Proficient Programs.**** % of Student Eligible for Free/Reduced Lunches: 47.4% of student in Arizona schools are eligible for free/reduced lunches.**** Ethnic/Racial Student Breakdown**** White: 42.1% Black: 5.3% Hispanic: 42.8% Asian: 2.7% Pacific Islander: 0.2% American Indian/Alaskan Native: 5.0% School Assessment Data Graduation Rate: 74.7% of all students entering high school in Arizona graduate. ** Average ACT/SAT score: Average ACT Composite Score: 19.9*** Average Combined SAT Score: 1552***** 8th-grade NAEP assessment scores:**** Math: 283 is the scaled score for 8th-grade students in Arizona. The U.S. average was 281. Reading: 263 is the scaled score for 8th-grade students in Arizona. The U.S. average was 264. % of Students Who Attend College after High School: 57.9% of students in Arizona go on to attend some level of college. *** Private Schools Number of Private Schools: There are 328 private schools in Arizona.* Number of Students Served in Private Schools: There are 54,084 private school students in Arizona.* Homeschooling Number of Students Served Through Homeschooling: There were an estimated 33,965 students that were homeschooled in Arizona in 2015.# Teacher Pay The average teacher pay for the state of Arizona was $49,885 in 2013.## Each individual district in the state of Arizona negotiates teacher salaries and establishes their own teacher salary schedule. The following is an example of a teacher salary schedule in Arizona provided by the Dyzart Unified School District. *Data courtesy of Education Bug. **Data courtesy of ED.gov ***Data courtesy of PrepScholar. ****Data courtesy of the National Center for Education Statistics ******Data courtesy of The Commonwealth Foundation #Data courtesy of A2ZHomeschooling.com ##Average salary courtesy of National Center of Education Statistics ###Disclaimer:Ã The information provided on this page changes frequently.Ã It will be updated regularly as new information and data become available.
Sunday, November 3, 2019
Arguing to Persuade Essay Example | Topics and Well Written Essays - 1000 words
Arguing to Persuade - Essay Example Argument to persuasion invites more use of language resources than argument to persuade (Caine 54). A persuasive paper intends to use logic and reasoning to convince others abandon their stands and beliefs and be conformed to the writers views). In this regard, this writing prior to preparation is necessary. There are stipulated steps that, if followed would result to a high performing persuasive paper. To begin with, an author should choose a certain stand (Wachob 34). Before one embarks on convincing others about his point of view, he or she must be sure of what he or she believes. Understanding and analyzing the audience follows; after this, the writer must delve into serious research on the topic. This enables one form concrete decisions, explanations to every statement and also boosts personal confidence and esteem. It is also in this level that one understands the failures of former works in the topic and develops mechanisms to counter them. The research on the topic also helps indentify reliable and legitimate sources of information and experts on the same. From the research plane, one is to develop a hypothesis, a proposition, a claim on the topic. The hypothesis should be debatable, carry with it two opposing ends. One can resort to having a thesis that stands against his or her stand, doing this ensures that the claim is debatable. The next move is to try and extrapolate possible refutations against your stand. This stage can be meant to do two things, prepare one psychologically to defend his or her stand and prepare answers to the refutations citing legitimate and available evidences (Forsyth 23). The next point is to provide concrete reasons for a particulate stand. This can be done by providing evidences by the use of facts, statistics from dependable sources and by the use of illustrations and examples. There are elements of a good persuasive writing. There should be order of how things get presented. This allows a clear flow of information witho ut conflicting of ideas, facts and truths. To start with is the introduction of the paper. This part gives an oversight of the paper and should not to be too lengthy. Terminologies in the topic of the paper should be defined and be explained at this point. Explanation of the background of the paper can also be given in the introduction (Caine 64). In the end of introduction, the claim should be introduced in a clear and precise way. The thesis can tell the reader the actual topic of the paper and the organization of the paper After introduction and having stated the thesis, the next thing in line is defending the thesis by providing evidences. This happens in the body of the paper and should take a minimum of three paragraphs. The thesis carries the whole paper. At this point, it is healthy to have the extrapolated refutations in the fingertips so as to start countering them from the very first defense. The paragraphs should also be arranged in accordance with the weight of the evid ences, starting from the beast to the least. The last statement of the paragraph should also be able to link with the next paragraph in a manner that embraces a perfect flow of information. (Wachob 39) After a perfect statement of the writers evidences, the paper should proceed to a new paragraph or segment that purely focuses on refutations. Since the writer communicates through writing, he or she is denied the chance of getting
Friday, November 1, 2019
Ethics and Professional Code of Conduct Essay Example | Topics and Well Written Essays - 500 words
Ethics and Professional Code of Conduct - Essay Example Integrity ensures that such persons respect the citizensââ¬â¢ constitutional rights, liberty and adhere to the values of justice and fairness in their duties to the citizens (Gaines & Kappeler, 2011, p 345). In this case, the professional is capable of ensuring fairness in his or her duties and refraining from unjust use of authority. Secondly, ethics and integrity ensures that police chief exercises reasonable courtesy while interacting with the public. In this case, the police chief or county sheriff is able to refrain from mocking, embarrassing, ridiculing or humiliating subordinates or fellow officers in order to incite them to violence. Thirdly, ethics and integrity will enable such professionals to observe confidentiality of information that is available to them in their capacity as senior law enforcement officers (Gaines & Kappeler , p 343). The officers should not willfully violate any legal restrictions that restrict the dissemination of the private information and should not disclose information that may endanger the life of a complaint or victim to a crime. There is a clear difference between ethics, morality and law as pertains to the duties of law enforcement officers. Ethics are external standards that are set by the law enforcement profession and are regarded as the social system or framework that should offer the acceptable behavior in the execution of duties of the law enforcement officer (Hess & Orthmann, 2011, p189). Morality refers to the law enforcement officerââ¬â¢s own principles regarding what is right or wrong. Morality is internal as it reflects the habits, beliefs, culture, and religion of an individual while ethics are external since they are set by the profession. Morality is guided by the existing cultural norms while the ethics are guided by the legal and professional guidelines. Dutelle (2011) asserts that the morals are
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