Introduction Essays (525 words) - Molecular Biology,

Introduction: DNA, Deoxyribonucleic acid, is a double stranded, helical nucleic acid molecule which determines inherited structure of a protein. The"steps" are made of bases: adenine, guanine, cytosine, and thymine. The sides are sugar and phosphate molecules. Restriction enzymes are enzymes that cut DNA at restriction sites, leaving fragments blunt or sticky. The restriction fragments are separated using a technique called gel electrophoresis. DNA has a negative charge so when an electrical charge is applied it makes DNA move to the positive side. DNA is placed in agarose gel. Smaller fragments move faster. The purpose of this lab is to separate DNA fragments using gel electrophoresis. Hind III cuts AAGCTT between the two irst A's. EcoRI cuts at GAATTC between the G and the A. Hind III and EcoRI both make sticky ends. Results: Our results for this lab were EcoRI separated into five fragments. Hind III separated into four fragments. The control only had one fragment. (See chart A and figure 1-1 for distances) Discussion: The purpose of this lab was to see how gel electrophoresis separates DNA fragments. We used Hind III, EcoRI, and a controlled enzyme. Some fragments were hard to see because of smearing. These were the bigger fragments. Loading the DNA was difficult and if you weren't careful you could rupture the wells which ruined the lab. We, fortunately, did not run into this problem. Abstract: The purpose of this lab is to separate DNA fragments with gel electrophoresis using EcoRI and Hind III. Restriction enzymes are used to break up the DNA, then negatively charged DNA is placed in a gel casting tray. Then it is placed into an electrophoresis chamber. An electrical field is placed across the agarose gel which forces the fragments to move down the gel. The amount of lines show how many fragments there is in the DNA. We had five fragments for EcoRI and six for Hind III. The no enzyme had only one fragment. Procedures: We sealed the ends of a gel casting tray with masking tape and inserted a comb into the slots. The tray was filled about 6mm high with agarose gel. It covered half the height of the comb. We waited ten minutes for the gel to solidify. Then we placed the tray in a gel box and made sure that the comb was at a negative (black) end. The box was filled with tris-borate-EDTA buffer so it covered the entire surface of the gel. The combs were removed without ripping the wells. The micro pipet was used to load the lambda EcoRI, lambda Hind III, and lambda only into the wells. We dipped the pipet trough the surface of the buffer over the wells and expelled the contents. The top of the electrophoresis chamber was closed and electrical leads were connected. The dye was observed as it moved shortly after the power supply was turned on. The power supply was turned off after the bands migrated near the end of the gel and the top of the electrophoresis chamber was removed. We removed the gel from the gel casting tray and examined it under a light box and compared it to the ideal gel (figure1-2). Bibliography References: Restriction Enzymes: Cleavage of DNA lab University of Illinois. (1999). Experiment 2 Gel Electrophoresis of DNA. In Molecular Biology Cyberlab, online: Http://www.life.uluc.edu/molbio/geldigest/electro.html

Kn- Words in English

Kn- Words in English Kn- Words in English Kn- Words in English By Maeve Maddox A teaching site offers this rule for dealing with â€Å"silent k†: â€Å"k is often silent before n.† An easier way to retain this information is to forget about â€Å"silent k† altogether. In a word like knot, k is not â€Å"a silent letter† at all, but part of the distinct phonogram kn. The symbol kn is just another way to spell the sound /n/. The spelling kn in a word like knave evolved from the Old English spelling cn, in which the â€Å"c† represented a guttural sound similar to the sound /k/. For example, the OE words from which our words knight, knot, and knave have evolved were spelled cniht, cnotta, and cnafa and pronounced with a hard first sound. The guttural sound eventually dropped out, leaving only the /n/ sound, but the old spelling has survived in kn. Here are some familiar kn words. knapsack knave knead knee kneel knell know knickknack knife knight knit knob knock knoll knotgrass knothole knowledge knuckle Here are some more kn words that may not be as familiar: knacker (noun): One whose trade it is to buy worn out, diseased, or useless horses, and slaughter them for their hides and hoofs, and for making dogs-meat. Ex. â€Å"Jones will sell you to the knacker, who will cut your throat and boil you down for the foxhounds.†Ã‚  (Animal Farm, George Orwell) knackered (adjective): exhausted. â€Å"After shopping with Mum, we were knackered.† knickerbockers (noun): loose-fitting breeches, gathered in at the knee, and worn by boys, sportsmen, and others who require a freer use of their limbs. Ex. â€Å"The childwas dressed in knickerbockers, with red stockings.† (Daisy Miller, Henry James) knickers (noun): underpants worn by women and children. The word is a back-formation of knickerbockers. It’s commonly heard in the idiom, â€Å"to get one’s knickers in a twist† (i.e., â€Å"become upset†). knackwurst (noun): a type of German sausage. Also spelled knockwurst. knout (noun): a kind of whip or scourge, very severe and often fatal in its effects. Ex. â€Å"The  knout  along with  the gulag  are Russias enduring shrines of torment.† knurl (noun): a small protuberance, excrescence, or knob. knurled (adjective): having knurls wrought on the edge or surface. Knurling  is a process of impressing a diamond-shaped or straight-line pattern into the surface of a work piece by using specially shaped hardened metal wheels. Ex. â€Å"Walnut Knurled Guitar Knob.† â€Å"Solid  walnut knurled  legs on table and chairs.† Two foreign borrowings, Knesset and knish, do not belong to the category of words spelled with the phonogram kn. They are spelled with the phonogram k; the sound /k/ is pronounced at the beginning of these words. Knesset (noun): The parliament of the State of Israel. The word derives from a Hebrew word meaning â€Å"a gathering.† Ex. â€Å"On July 11, 1995 this problem was raised for discussion in the Knesset finance committee.† knish (noun): A dumpling of flaky dough filled with chopped liver, potato, or cheese, and baked or fried. The word comes from a Yiddish word derived from a Russian word meaning â€Å"a kind of cake.† Ex. â€Å"Gabila’s Knishes: Home of the Coney Island Square Knish.† Want to improve your English in five minutes a day? Get a subscription and start receiving our writing tips and exercises daily! Keep learning! Browse the Spelling category, check our popular posts, or choose a related post below:50 Incorrect Pronunciations That You Should AvoidThe Possessive ApostropheRite, Write, Right, Wright

Human Resource management PBL 3 Essay Example | Topics and Well Written Essays - 2500 words

Human Resource management PBL 3 - Essay Example Their performance can spell a difference between a business’ failure or success especially in today’s very competitive environment (Guld 2007). Business organisations with a committed and motivated workforce does not only have higher productivity but also ensure the viability of the business in the long-run. Such, it is critical that businesses should motivate its workforce not only for them to commit and perform but also to keep them in the organisation. Keeping valuable employees motivated in an organisation is not only intended to make them commit and perform but also to keep them over the long haul (Frasch 2010). There are many implements used by business organisations to motivate their employees. The most common notion about motivation is to shower them with fat paychecks but this proved to be inadequate in keeping employees motivated (Herzberg 1987). As what organisational theorists have reported, committing employees to perform towards a common goal involves an i nterplay of various factors that involves not only remuneration, but also the social and psychological dimensions of work that keep employees motivated and thus, productive. ... ate employees to encourage commitment and performance among employees was first conceived by management classical theorists such as Taylor, Maslow, Mayo, McGregor, Vroom and Herzberg. While modern management and organisational theorists will argue that their concepts of motivating employees to commit and perform are inadequate, it cannot be denied that these classical theorists provided the basic building blocks of the know-how to motivate employees. From a simple idea of Taylor that adequate remuneration motivates employees, it later expanded to include the other dimension of human needs and aspects with the aim of fulfilling these needs that would enable employees to commit to the organisation. Such, it would be necessary to cite and expound the ideas of these classical theorists for us to better understand the motivational implements used by modern organisation whose concepts can be traced back to the ideas of these classical theorists. The classical theorists of motivation a. Fre derick Winslow Taylor’s Principles of Scientific Management Taylor first conceived the idea that workers are mainly motivated solely by wage. He posited that management has to possess the control and knowledge of the methods of production so that it would have a greater control of achieving efficiency in an organisation that includes motivating its workforce (Jaffe 2008). For Taylor, the breaking up functions into small quantifiable tasks is necessary to make the time-piece rate pay possible that will encourage employees to work harder if they can see that they are being paid with more work (Taylor 1911). This theory assumed that employees are more motivated with more pay and confined motivation to solely addressing the economic needs of a business organisation’s employees. Old as it

Investment and protofolio risk for microsoft Essay

Investment and protofolio risk for microsoft - Essay Example Another risk associated in this problem is the so called – financial risk, which is the ambiguity introduced by the manner of financing the firm. Taking for example if Microsoft has to outsource to finance the whole company, it has to repay fixed financing charges such as interest expenses and return of principal amount before paying its shareholders. This then increases the risk of shareholders’ investment due to the preference of distributing its assets. Liquidity risk is the uncertainty over the ability to sell an investment in the secondary market which is Microsoft’s ability to sell its asset or convert non cash assets to cash in order to finance the company. Another risk connected in investment decisions is the Exchange rate risk or the uncertainty over the domestic currency value of a foreign currency denominated investment, which means that the value of the money varies with the currency of another country. The risk might be the value of the investment might go down or become lesser especially when it comes to currency conversion. Country risk is also taken into consideration with regards to investment. This is the uncertainty over the political or economic environment in which the investment is located. A major factor for investment decisions is the political and economic stability of a particular country where the investment is located, this is because, the more stable the political and economic environment is, the more investors are attracted and therefore, the more profit the company may generate. Another risk to be considered is the credit risk or the uncertainty over whether the issuer of a fixed income security will deliver the contractual cash flows which means, the ability of Microsoft to attract creditors for additional financing or its ability to collect money form its deliveries and services to its customers who purchased on account. Sometimes, credit risk is also carried when creditors were

Ineffectiveness of GPS Monitoring System for Sex Offenders Research Paper - 1

Ineffectiveness of GPS Monitoring System for Sex Offenders - Research Paper Example Despite the optimistic effects of technology in the society by improvising the GPS devices, understanding the restrictions of this technology remains essential in maintaining the safety of the society. A case is depicted of a sex offender who cut off his GPS monitoring device and eluded authorities. Although the device still warned the police to keep an eye on the sex offender, the device remained incompetent since the sex offender was able to roam around and carry out his inhuman acts again. Using a GPS requires the free flow of information to those responsible for making sure that the task is accurately carried out. Therefore, using the GPS to monitor or track a sex offender does not entirely depend on the technology but responsibility of those using the device in order to ensure its effectiveness. GPS monitoring device only acts as a part of the solution to sex offenders. They only track where the individual goes, but in essence, do not deprive him the ability to find their next target. John Albert Gardener depicts a sex offender who had a GPS device to monitor his tracks and make sure that he never went near any young woman. However, still having the device, Gardener was able to rape and murder two helpless teenagers back in 2009. It is evident that the paroled felon was not at any chance under careful supervision as officials thought. It can be depicted that these two victims could be alive if only the devices were effectively used. As a dangerous sex offender, John Albert Gardener still roams in the streets.

Advantages And Disadvantages Of Wireless Internet

Advantages And Disadvantages Of Wireless Internet Wireless Internet is also called Wireless Web, Mobile Internet, and Internet Wireless. Wireless Internet means access the internet through a wireless devices, For Example laptop, cellular telephone , PDA, etc , Using Wireless internet any person can do their day today activities like e-mail, e-banking, communication, conferencing, etc.., In addition to that can be accessed weather and travel information, etcà ¢Ã¢â€š ¬Ã‚ ¦ any where any time. Advantages of wireless Internet Fast installation Efficient use of resources Less susceptible to disruption Capacity can be added, removed or reallocated more easily To enable users to bring their own laptop, therefore reducing the cost of owning many PCs. To enable you to easily move PCs. Disadvantages of wireless Internet Cost Technology is newer and more expensive for some applications Speed Radio Frequency (RF) characteristics make high data transfer rates more difficult with wireless than with wired Security Wireless signals are relatively easy to intercept Frequency spectrum saturation Scope Of The Survey What are the current wireless internet technologies Give detailed view about each technology Compare each technology by giving advantages disadvantages of them What are the new trends of wireless internet and the improvements of them with compare to current technologies Current Wireless Internet Technologies LEO IEEE 802.11 IEEE 802.16 LMDS 1G-Analoge Cellular MEO (WIFI) (WIMAX) MMDS 2G-Digital Cellular GSO 2.5/2.75G- (GPRS/EDGE) 3G/3.5G Mobile WiMAX (IEEE 802.16e/m) Detailed view about each technology Mobile Wireless Internet Technologies First Generation mobile wireless technology (1G) First Generation mobile wireless technology (1G) are analog , voice-only cellular, telecommunications standards, that were Introduced in the 1980s. One such standard is NMT (Nordic Mobile Telephone), used in Nordic countries, Eastern Europe and Russia. Others include AMPS (Advanced Mobile Phone System) used in the United States, TACS (Total Access Communications System) in the United Kingdom, JTAGS in Japan, C-Netz in West Germany, Radiocom 2000 in France, and RTMI in Italy. Second generation wireless technology(2G) Second generation mobile wireless technology is based on GSM was launched in Finland in the year 1991, 1G technology use analogue radio signals but 2G technology use digital signals to transfer data,but both technologies connect to the tower using digital signals ,In 2G voice call is encoded to digital signals but 1G signals are modulated to higher frequencies like 150 MHz and up. There are three common technologies used by 2G cell-phone networks for transmitting information Time division multiple access (TDMA) -GSM,PDC(japan),iDEN(US,Canada),IS-136(US) Code division multiple access (CDMA) -IS-95(US,Asia) 2.5G(GPRS) The term 2.5G usually describes a 2G cellular system combined with General Packet Radio Services (GPRS). that means it implements a packet-switched network domain in addition to a circuit-switched domain. It can be provide data rates 56 kbit/s-115 kbit/s and also Services like Wireless Application Protocol (WAP) access, Multimedia Messaging Service (MMS), and for Internet communication services such as email and World Wide Web access. 2.75G(EDGE) EDGE Defined as GPRS with 8PSK encoding, EDGE was introduced in 2003, EDGE achieves higher data-rates (up to 236.8 kbit/s) Third generation wireless Internet(3G) Third generation mobile wireless technology is based on International Mobile Telecommunications-2000 (IMT-2000), 3G is collection of standards mobile telecommunications which includes UMTS, and CDMA2000 with non-mobile wireless standards DECT WiMAX, Compared to 2G and 2.5G services, 3G allows simultaneous use of speech and data services and higher data rates (at least 200 kbit/s). today 3G systems can provide up to 14.0 Mbit/s download speed and 5.8 Mbit/s upload speed. Mobile WiMax(IEEE 802.16e) Mobile WiMAX or 802.16e standard was introduced by the IEEE in late 2005 as real competitor to 3G technologies, However South Korea elected to take a mobile WiMAX compatible standard called wireless broadband (WiBro) to market. WiBro/Mobile WiMAX uses an OFDMAà ¢Ã¢â‚¬Å¾Ã‚ ¢ technology called 1K-FFT. Service for the WiBro/Mobile WiMAX standard is in the 2.3 GHz spectrum range at least in Korea. The technology can be easily adapted to other licensed spectrum. Wireless Wide Area Networking Technologies WIMAX(Interoperability for Microwave Access) Wimax is a telecommunications technology that offers transmission of wireless data via a number of transmission methods; such as portable or fully mobile internet access via point to multipoints links. The current WiMAX revision provides up to 40 Mbit/s which is based on Standard IEEE 802.16, it also called Broadband Wireless Access and it was formed in Mid June 2001 Wireless Local Area Networking Technologies WiFi WiFi uses radio waves to provide wireless high-speed Internet and network connections. WiFi is owned by the organization Wi-Fi Alliance, and it is based on IEEE 802.11 standards. 802.11a transmits at 5 GHz and can be provide data rate up to 54 Mb/s and it uses technology orthogonal frequency-division multiplexing (OFDM). 802.11b is the slowest and least expensive standard which transmits at 2.4 GHz can be provide data rate up to 11 Mb/s and it uses complementary code keying (CCK) modulation to improve speeds. 802.11g transmits at 2.4 GHz and it can provide data rates up to 54 Mb/s. 802.11g is faster because it uses the same OFDM coding as 802.11a. 802.11n is the newest standard that is widely available and it can achieve data rates up to 140 Mb/s. Fixed Wireless Internet Technologies LMDS (Local Multipoint Distribution System) LMDS is a technology for broadband microwave wireless transmission direct from a local antenna to homes and businesses within distance 1.5 miles (2.4 km) . LMDS offers a download speed up to 1.5 Gb/s and 200 Mb/s upload speed. LMDS commonly operates on frequencies across the 26 GHz and 29 GHz bands. In Europe, (ETSI) is equivalent technology. In Canada, it is called Local Multipoint Communication Service (LMCS) and it is based on IEEE 802.16.1 standards. MMDS(Multichannel Multipoint Distribution Service) MMDS provides digital video- and Internet- (including VoIP) access using various over-the-air microwave frequencies. Services are provided within distance 20 miles or 32 km from the transmit site. MMDS commonly operates on frequencies across the 2 GHz and 3 GHz. The MMDS band was separated into eleven channels and Each channel was capable of 10 Mbit/s Satellite wireless internet technologies Communication via satellite can be done using one or two way dish. Satellite dish was placed minimizing the interference with other satellites . the dial-up connection can be used for uploading purposes and the satellite internet connection can be used for downloading data. Mostly, the two-way communication dish is preferred by residential users and small businesses. The two-way internet service is characterized by Time Division Multiple Access (TDMA) and single channel per carrier (SCPC). There are three satellite constellations, GEO (geostationary earth orbit), LEO (low earth orbit) and MEO (middle earth orbit). low Earth Orbit (LEO) satellite is placed in between 160 2,000 km above the Earths surface. Medium Earth Orbit (MEO), satellite place in between 2,000-35,786 km above the Earth surface High Earth Orbit(HEO) , satellites place in between 35,786 km above earth surface Comparison of wireless internet technologies Compare some wireless internet technologies Standard Base Technology Usage Radio Technology Download speed(Mb/s) Upload speed(Mb/s) Additional details EDGE Evolution GSM Mobile Internet TDMA/FDD 1.9 0.9 3GPP Release 7 UMTS ,W-CDMA HSDPA,HSUPA HSPA+ }UMTS/3GSM }General 3G CDMA/FDD CDMA/FDD/MIMO 0.384 14.4 56 0.384 5.76 22 HSDPA widely using today, Typical download rates 2Mbit/s, upload ~200 kbit/ HSPA+ download up to 56 Mbit/s. UMTS-TDD UMTS/3GSM Mobile Internet CDMA/TDD 16 16 Use 16QAM modulation like HSDPA+HSUPA 1xRTT CDMA2000 Mobile phone CDMA 0.144 0.144 EV-DO Succeeded Wi-Fi 802.11 (11n) Mobile Internet OFDM/MIMO 288.9 can gain 600 using 40Mhz channel width throughput and/or spectra efficiency (310km 382km Mobile WiMAX 802.16e Mobile Internet MIMO-SOFDMA 144 144 WiMAX update to IEEE 802.16m expect download speed up to 1 Gb/s fixed speeds LTE UMTS/4GSM General 4G OFDMA/MIMO/SC-FDMA 360 80 LTE update to LTE-Advanced expect rates of at least 1 Gb/s fixed speeds and 100 Mb/s to mobile users http://mobilania.com/articles/wimax/what-is-wimax/ Compare throughput of the wireless internet technologies Standard Maximum Download Speed(Mb/s) Maximum Download Speed(Mb/s) coverage Typical Download Speed(Mb/s) GSM GPRS Class 10 0.0856 0.0428 ~16 mi 0.014 GSM EDGE type 2 0.4736 0.4736 ~16 mi 0.034 GSM EDGE Evolution 1.8944 0.9472 ~16 mi UMTS W-CDMA HSDPA 14.400 0.3840 up to 124 mi 4.1 (Tre 2007) UMTS W-CDMA HSUPA 14.400 5.7600 up to 124 mi UMTS W-CDMA HSPA+ 42.000 22.000 up to 124 mi UMTS-TDD 16.000 16.000 CDMA RTT 1x 0.3072 0.1536 ~18 mi 0.125 WiMAX: 802.16e 70.000 70.000 ~4 mi >10 WiFi: 802.11a 54.000 54.000 WiFi: 802.11b 11.000 11.000 ~30 m 2 WiFi: 802.11g 54.000 54.000 ~30 m 10 WiFi: 802.11n 200.00 200.00 ~50 m 40 LTE 326.4 86.4 Future trends of wireless internet Why world move towards new wireless technologies Requirements of the people are increasing day by day also so they need to communicate and get connected with each other and get information at any where any time, that increase the demand for mobile wireless technologies.When the demand increase the major wireless service providers keep on monitoring the growth of new mobile wireless technologies. North America, Europe and Asia Pacific total mobile uses in 2010 is expected to grow up to 2500 million and penetration will be greater than 50 percent So to survive from this kind of demand growth, need new wireless technology with higher capacity and higher data rates, so world move towards 4G,LTE Advance, IEEE 802.20,IEEE 802.16m technologies. (T.Saito et al ,2009) Trend towards 4G over 3G 3G network not compatible with demand of higher data rates so wireless world move towards fourth generation (4G) wireless networks, it will expect to support above 100 Mbps data rates and also high quality video and audio than 3G technology because of 4G networks consist of some advance technologies like Orthogonal Frequency Division Multiplexing (OFDM) and Orthogonal Frequency Division Multiple Access (OFDMA) , 3G networks are based on ITU-T, IMT2000 standards but 4G standards are not defined yet. OFDM and OFDMA can be used to effectively allocate resources of the network to multiple users. In addition to that 4G is expected to provide higher security and lower data transmission latency than 3G. The emerging 4G will be fully packet-switched network. All the elements of the network must be digital and also 4G services have some key features like adaptability and dynamism. Throughput of the 3G only greater than 2, but throughput of 4G is greater than 200, moreover operating frequencies of 3G is 900,1800,1900,2100(MHz) but 4G operates on 2-8(MHz) frequency , so data transmission is more efficient in 4G than 3G, in addition to that signal coverage of 3G technology is greater than or equals 6 miles but in 4G signal coverage is greater than or equals 30 miles. Trend towards IEEE 802.20 -Broadband Wireless Access (MBWA) The IEEE 802.20 is designed for support internet client in vehicle which is moving speed up to 250 Km per hour . IEEE 802.20 supports Qos to give good quality, low-latency services like IEEE 802.16e, and also like IEEE 802.16e its uplink and downlink are synchronous but in 3G uplink and downlink are Asynchronous. IEEE 802.20 is support global roaming facility with the support of 3G, but with compare to IEEE 802.18e it only support local roaming facility. IEEE 802.20 made up of combining good features of 3G and 1EEE 802.16e and reducing the limitations of them. Trend towards LTE-Advance LTE uses Orthogonal Frequency Division Multiple Access (OFDMA) technology to gain good frequency performance, and also it uses single-carrier FDMA(Frequency division Multiple Access) technology, LTE support Multiple Input Multiple Output( MIMO) technology in order to gain good spectrum usage and increase coverage. LTE also support SU-MIMO(Single User MIMO) and MU-MIMO(Multiple User MIMO) and also LTE support spectrum between 1.4-20 MHz. Latency of the LTE is very low (10-20ms) with compare to other technologies. Low latency is very important feature for time critical application like online gaming, etc , And also LTE only use packet switched domain which leads simple protocol architecture. LTE-Advanced can be defined as LTE plus IMT-Advance requirements and it is backward compatible with LTE , With compare to LTE, LTE-Advanced is support collection of multiple carriers which help to gain higher transmission rate with compare to LTE using multiple frequency blocks each have 20 MHz bandwidth. And also LTE-Advanced is support DFT-S-OFDMA combining with aggregation improves user throughput and uplink capacity. With compare to LTE, LTE advance also support SU-MIMO but will have eight uplink and four downlink which improve user throughput and spectrum usage. LTE advance also introduce relay stations to improve coverage, newly introduced technology for LTE-Advanced is relay stations which expand the signal coverage. When compare Peak Spectrum usage efficiencies(b/s/hz) of LTE and LTE-Advanced, Peak Spectrum usage efficiency of LTE is greater than 5 in downlink and greater than 2.5 in uplink, but Peak Spectrum usage efficiency of LTE-Advanced is greater than 30 in downlink and greater than 15 in uplink. When Consider average spectrum usage efficiencies(b/s/hz), LTE has 1.6-2 spectrum efficiency in downlink and 0.66-1.0 in uplink, but in LTE Advanced has 2.4-3.7 Average spectrum efficiency in downlink and 1.2-2.0 in uplink. So Peak and Average Spectrum efficiencies both uplink and downlink in LTE-advance is greater than LTE . Operating Bandwidth of the LTE is 1.4-2.0(MHz) and Operating Bandwidth of LTE-Advanced is greater than 100(MHz), Connection setup delay of the LTE is greater than 100 and, in LTE Advance it is greater than 50, so LTE-Advance is more efficient than LTE Because of advantages of LTE-Advanced researchers found that world will move towards LTE-Advance technology over LTE. Trend of IEEE 802.16m over IEEE 802.16e Current WiMAX technology is based on IEEE 802.16e but next generation WiMAX will follow IEEE 802.16m standard which is extended version of IEEE 802.16e. so it will support basic WiMAX technologies like OFDM, TDMA/FDMA, MIMO, in addition to that, it will be also introduced extended MIMO technologies. IEEE 802.16e is using two antennas to transfer and receive data, but IEEE 802.16e will use 8 antennas to transfer and receive data moreover it will support SU-MIMO technology which help to gain high data transmission rates, furthermore, MU-MIMO, Multi-BS MIMO technologies are being considered. And also Multi carrier technology is being introduced to support higher throughput. Hierarchical frame structure is being included in IEEE 802.16m, which is being consisted of super frames and sub frames to improve spectrum usage efficiency. It is being decided to introduce another new technology is femtocell technology which improve the throughput, in addition to that multihop relay system is supported to the IEEE 802.16m in order to overcome low signal strength in indoor due to the loss of penetration through building, so multihop relay system increase signal strength and that leads wide signal area, high indoor troughput. Future Of WIFI When consider the recent history of WIFI in 2009-2010 main target of WIFI was access points and laptops, but 2010-2011 it is and it will be mobile devices like mobile phones, PDA , etc, then 2011-2012 main target of WIFI will be consumer electronics like TV, Cameras, etc, 2012-2013 and beyond main target of WIFI will be embedded systems. That is the deployment road map of WIFI, more over current WIFI technologies are IEEE 802.11n and IEEE 802.11w, main purposes of these technologies are Throughput efficiency and security, future WIFI technologies will be IEEE 802.11v, IEEE 802.11s, IEEE 802.11aa, IEEE 802.11ac, IEEE 802.11ad, Main purpose of IEEE 802.11v will be power efficiency, and Main purpose of IEEE 802.11s will be compatible with mesh networking and Main Purpose of IEEE 802aa/802ad will be high throughput.IEEE 802.11v will expect to available to public in end of 2010, IEEE 802.11s and IEEE 802.11aa will be available in 2011, and IEEE 802.11ac/ad will be available 2012 0r beyond . IEEE 802.11s will be capable of using mesh standards, self configure in to multi-hop wireless technologies where access point from different manufactures. And also IEEE 802.11s support different functional requirements of Applications like, some Applications require large scale high throughput and some require quick setup. IEEE 802.11v Systems to control the clients connect to it which leads to efficient use of system infrastructure so using that can improve performance of the system. Conclusion Internet was introduced early 1980 but it became more popular after 1990, from that day wireless internet technologies have became more and more popular until today, it will be more popular in the future to match with the complex life style of the people , that means when the world develop with other fields, requirements of the man is increasing rapidly when the requirements are increasing, Collection of data, services over data, communication requirements is being increased , so data can be able to access any where any time and also any person can be able connect other people any where any time to exchange ideas, that is why world move towards wireless technologies, because of its mobility, so demand of wireless technology is being increased so existing wireless technologies couldnt bear such a high capacity and cant provide higher data rates and bandwidth. For a solution to that problem we can see how 1G,2G,3G,3GPP LTE, etc like new technologies have introduced and became more popular time to time to satisfy communication and data requirements of developing world, when reading the document can be found out how technology increase and how data rates, capacity, bandwidth has increased according to the improvements of the technology, but performance requirements are not the only reason for introduce new technologies, some people need low cost solutions with fair data rates, for a example WIFI IEEE 802.11b over 802.11a which 80211b is cheaper than 802.11a. Today, demand for the wireless technologies are increasing more rapidly, to survive from that, in future world will move towards 4G,IEEE 802.16m,LTE-Advanced,IEEE 802.20 technologies over current wireless technologies like 3G, LTE, WIFI, WiMAX, etc, because current wireless technologies cannot provide higher capacities and data rates that the world is asking in future. According to the document wireless technologies also have disadvantages like security issues, data rate issues, cost issues over wired technologies, but over that disadvantages, people cannot survive without wireless technologies because of the reasons above mentioned.

The Lack of Man in Lac Léman Essay -- Literary Analysis

The narrator of Hubert Aquin’s novel Next Episode cannot breathe; he’s drowning. The author presents water as a deadly force that has the ability to stifle life. Aquin employs the characteristics of water to represent the narrator’s inability to express his national identity and therefore himself. Multiple symbols are used throughout the book, such as fire and ice, but water is an overpowering and important aspect of the book because it conveys a sense of inertia in the individual. This notion of water is connected to the repression of Quebec nationality. The book discusses water in a variety of different contexts: as the primary foundation for the story (as interpreted by the translator), as a metaphor for self and as a replacement for language. Water, weaved into a nationalistic allegory, is given conflicting attributes and is both a life giver and life taker simultaneously. This double approach to the basic element of water embodies both his drive to express h im nationality and his incapacity to authentically vocalize his own existence. The tale begins below the waters of Lac Là ©man, as the narrator states â€Å"it’s in the area of this invisible lake that I’ll set my story† (4). The lake is central to the story, as it is this water (or water which flows from it) that he speaks of in terms of the self and language. The place names of this body of water are also significant for French-Canadian nationality. The translator Sheila Fischman has as much literary power as the narrator. This is because without having read the French edition of the text, the English edition modifies meaning concerning the image of water. Fischman does this by consistently using the French name for the lake â€Å"Lac Là ©man† instead of using its English name â€Å"Lake ... ...erves to corroborate the asphyxiation of a definitive French-Canadian national narrative. Water at once embodies the narrator’s want to express his nationality and personal identity, but also his inability to do so. Ultimately, Water becomes a type of liquid courage for the narrator that never produces substantial results, so he looks towards a future revolution to conceive a genuine national identity. Works Cited Aquin, Hubert. Next Episode. Trans. Sheila Fischman. Toronto: McClelland & Steward Ltd. 2010. 1,4, 12, 13, 21, 22, 23, 24-25, 46, 49, 52, 53, 67, 74, 84, 122, 128. Stewart, Susan Louise. â€Å"Beyond Borders: Reader ‘Other’ Places in Children’s Literature.† Children’s Literature in Education 39.2 (2008): 95-105. 98. Springer E-Books. Proxy. Queen’s University Lib., Kingston. 1 Nov. 2010

Media Reaction Paper – West Side Story

Media Reaction Paper: West Side Story West Side Story was one of the first musicals this writer saw on Broadway. It was such a mesmerizing experience to live the culmination of the hard work performed by a group of very talented individuals that stemmed from a single idea. It was not until research was done for this paper that this student realized what a great cultural impact West Side Story was when it was first introduced to audiences. The book for West Side Story was written by Arthur Laurents in 1949. An interesting fact about this legendary story is that it was not always named West Side Story. The original name given this tale, based on Romeo and Juliet, was â€Å"East Side Story. † It was written as a rivalry tale between a gang of Roman Catholic teenagers named The Jets, and a gang of Jewish teenagers named The Emeralds. Because this topic of rivalry between the Jewish and Roman Catholic communities was redundant in the industry at the time, the creative team composed of Arthur Laurents, Jerome Robbins and Leonard Bernstein, decided to put the project on hold. Thus, they ceased work on the idea for a period of almost five years (Miller, 2006). After five years the creative team reunited to work on other projects and decided to revisit East Side Story and give it a completely new twist and decided to set it in Harlem, New York City (Miller, 2006). West Side Story depicts the love between a Caucasian teenage boy from the West Side of New York City and a young Puerto Rican girl from the same neighborhood. The characters were all from a poor neighborhood and hung out on the streets together. There were two gangs that were in constant conflict with each other: The Jets and The Sharks. Tony, the main character, is a member of the Jets, a gang composed of Caucasian teenage boys. He is however, different from the rest of the members and wants to work and someday go on his own way. Maria is the sister of the leader of the Sharks, a gang composed of teenage Puerto Rican boys. Maria and Tony meet and instantly fall in love and have to deal with the turmoil of being from different cultural backgrounds and the difficulty of having their love accepted by each of their groups. The relationship causes conflict in the neighborhood that results in violence and ultimately Tony’s death. West Side Story was considered a breakthrough for the Puerto Rican community. Very little exposure about the Puerto Rican culture and their presence in New York City had been portrayed in any type of media up to the time the play’s debut on Broadway. Although Puerto Rican’s were depicted with stereotypes that were not necessarily true about their culture, the story delivers a message of change. It describes racism as dangerous and as an obstacle to love. To have developed such a controversial story during times when segregation still existed in the United States was very brave. What softened the diversified and strong topic was the fact that it was a musical with very vivid choreography and colors andan upbeat script full of humor. This factor made the story more acceptable to the American people. The media has its ways to persuade the masses. Within the past century, the media has played an important part in the cultural changes in America. Television, radio, theater and written works have broken through the racism barriers to expose the many faces of the American population. Everyone is different and their cultural background makes a special contribution to the community of the world. West Side Story is a good example of a media piece that addressed America’s cultural diversity in a time when most people had no idea how multicultural our country really was. References Miller, G. (Wintr-Summer 2003). Arthur Laurents chronology. American Drama, p. 1(9). Retrieved November 10, 2009, from General OneFile via Gale: http://find. galegroup. com. ezproxy. apollolibrary. com/ips/start. do? prodId=IPS

The best custom papers provider Essays

The best custom papers provider Essays The best custom papers provider Essay The best custom papers provider Essay Many students are aware of the fact that there are many custom papers providers on the internet. However, not every student knows which provider has a good reputation and which one is a scam. If you are reading this article, I want to assure you that have come to the right place. There are lots of benefits to be reaped if you buy custom papers from us. As a matter of fact, the benefits are inexhaustible and you will only be aware of them if you decide to befriend us. Nevertheless, let me highlight a few reasons why you should choose us. All custom papers that you buy from us are written by a team of resourceful writers. These writers have no less than two years experience and they go through a rigorous recruitment procedure. You can be sure that no writers join our team unless they have the necessary qualifications. As far as their credential are concerned, Im proud to note that the least qualified writers hold masters degrees. With this kind of writers we are sure you would not like to shop elsewhere for cheap custom papers. The other reason why you should enlist our services for custom papers has to do with discipline and responsibility. We regard the ability to beat even the tightest deadlines as discipline. May be you have ever found yourself in a situation where you have an urgent paper which you feel that you cannot complete by yourself. If you ever find yourself in such a situation, worry not because our writers will be there to salvage your situation. Before wrapping up, I would like to assure all our potential and current customers that their custom papers will always be written from scratch. Under no instances will we resell old custom papers. Additionally, when customers buy custom papers from us, these papers are checked for plagiarism and if necessary, plagiarism reports are sent together with completed orders.

These 7 jobs require very little experience

These 7 jobs require very little experience Maybe you’re desperate for a job and have had trouble finding one that fits your life. Maybe you’re fresh out of high school with a very short resume. Maybe you’re looking for a career change and want something totally new. The trouble is, everything out there is asking for â€Å"3-5 years† experience and you have none. You ask yourself how you’re supposed to get that experience without getting hired first†¦ and then you beat your head against your desk. Don’t despair! Here are 7 perfectly respectable jobs that will hire you with little-to-no experience. Some will give you on-the-job training and some will ask you to take a course before you begin, but all you can approach as a newbie.1. Delivery PersonIf you can drive and possess a valid license and a clean driving record, you can deliver. Most delivery jobs only require a high school diploma (or equivalent) to get started. Though this job can be tiring and physically demanding, you can expect to make an average of $13 an hour and work flexible hours.2. Bill CollectorAs long as you have your high school diploma or equivalent and a good phone manner, you could make an hourly rate of more than $15 an hour by working for third-party collection agencies. Most organizations do not require prior experience and offer on-the-job training.3. BartenderYou’ll probably need to attend some sort of bartending school, but once you do, you can make great money (an average of $10/hr, but before tips) making and serving drinks.4. School Bus DriverIf you have a clean driving (and criminal) record and the patience to hang out with children two times a day, then you can make an average of $15/hr driving them to and from school. This job might even come with decent benefits in some school districts.5. Real Estate BrokerThis one will take a little start-up money and a lot of legwork to get started, but can be a great career path. All you need is to take a course and pass a test t o get your license. Then there’s another test to become a full-fledged broker on your own. But you can work for yourself, design your own hours, and make a national average of $56k per year.6. Human Resources AssistantGain your own experience behind the scenes at a company by working for an HR department. Good administrative skills and customer service manner are very helpful, but in many places you’ll only really need a high school diploma or equivalent beyond those basic skills. The money is decent (national average is $15/hr) and you have the opportunity to work your way up the ladder.7. Library TechYes, libraries are still a thing. And being a librarian takes years of school and multiple degrees, but being a library technician  usually doesn’t. Assist the head librarians in organizing, ordering new materials, shelving books and magazines, and helping patrons. You’ll want to buff up on your people and computer skills, but otherwise you’ll only need your diploma in many places to get hired and make an average of $14/hr.

Management Diversity and equal opportunity Article

Management Diversity and equal opportunity - Article Example Valueing and managing diversity requires policies, procedures, relationships and practices that will ensure fairness and equality. (Rice K,2007) However on the other side the scope these diversities in the business environments can be made use to effectively improvise the organisation's performance. In totality, the success of an organization in adapting to the diversity would directly depend upon the equal distribution of opportunities in terms of responsibilities, benefits, career opportunities and personal respect among the team. Advancement in technology, travel options, communications and liberalization of international business regulations has incorporated numerous possibilities of conditions with diverse natures within the work environment. This trend was found to increase in the early nineties. The transference of a command driven economy to a market driven one, sheltered markets to competitive ones, domestic trade to international trade and the trend of monopoly to the trend of competition has extensively made possible the chances and demand of diversity in the business setup and processes involved. However these chances and demand are expected to have an upward trend in the coming years as well. In the modern business scenarios, diversity has been observed in the following areas. Cultural Diversity A modern definition of culture is "the shared ways in which groups of people understand and interpret the world (Fons & Charles 1997,p.3-4). A diversity in the interpretation and understanding as defined by Fons & Charles is being experienced in the human resources of business entities mainly due to the resultants of globalisation namely in- sourcing and out-sourcing. Moreover the policies on exchange of manpower among different nationalities promoted by the shortage of skilled manpower in many countries have led many companies to hire people belonging to different countries with diverse cultures. International educational opportunities are also increasing the availability of multi-cultural man power. The diverse understanding of business procedures and varied interpretation of management scenarios by this multi-cultural workforce adds complex cultural diversity to the work environment. Inter personal relationship The modern work groups hold much diversity in their inter-personal relationship attitudes. Although this may vary from person to person, the range of the diversity is much high with reference to the modern work groups which includes staff from different countries and cultures. Christopher & Diana (1996, p75) have mentioned seven factors concerning to the human relationships including time, space, odors, frankness, intimacy of relationships, values and expression of emotions. When an employee or a group from a particular part would insist on punctuality, others from different part of the globe would not pay much importance for time. Space is also viewed differently by different people. When some need to be close to their colleagues some others would prefer to keep a distance. Frankness is another factor which can bring in diversity in inter-personal relationships among the staff. High-context cultures are more frank than low-context cultures. (Lesikar R & Flatley M 2002,p.442). Intim acy among the

Coca-Cola Company Essay Example | Topics and Well Written Essays - 2500 words

Coca-Cola Company - Essay Example The products range from diet, caffeine free to the vanilla -flavored type of products. The mission of the company has been that of refreshing the body, mind and spirit; to inspire the moments of optimisms through the brands and actions of the employees and also to create value through making a difference whenever the persons are involved in their business activities. The internal factors that have been affecting the operations of the company include; research and development, operations and logistics, human resources and information systems. The management of the company has constantly been involved in carrying out research work that is aimed at developing unique and innovative products into the market .The company has over 2600 products but it intends to produce more products to meet the needs of the customers within a specified period of time. The products that are being researched on are those that have lower calories and are healthier for the consumption by human beings .For instance the coke diet that consists of vitamins is suitable for diabetics due its low levels of sugar. The operations and logistics of the company involve the chain of distribution to ensure that their products reach their designated customers. It involves the production of syrup concentrates that it packs and later on sells to the franchised bottling plants such as the Coca Cola enterprises. The distributors later on distribute the products to well known manufacturing companies that combine the syrup with the carbonated water to make products which are availed to the customers within the stipulated period of time. The distributors then deliver the product to retail stores, vending machines companies and restaurants as well as the food service providers. The importance of undertaking this task is to ensure that the individual distributors get the right ingredients of the final product that can suit the needs of the customers and also suit to the tastes and preferences of the customers. The employees of the company are charged with different responsibilities of ensuring that the company achieves its goals and objectives so as to enhance its growth and development. The company has employed a human resource strategy that aims at motivating, maintaining and also attracting the best employees. The strategy of maintaining and retaining the employee's enables it to remain stable and to continue its operations into the foreseeable future. The management has realized that labor turnover can be very expensive for the company in terms of training thus they try to motivate them. It has been noted in last few years there has been a high rate of turnover and improper lines of communication that have contributed to a decline in the sales revenue of the organization. The employees have found it difficult to air their views about how the operations of the company should be carried out and that has contributed to disagreements on how the operations of the company should be undertaken .Some mechanisms have been put in place that are aimed at eliminating the communication differences that have constantly been eminent within the organizations. The human resource department has continued to perform employees' performance appraisals and evaluations which are undertaken three times a year for each of the employees so as to retain and maintaining and reduce the rate of labor turnover. The