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Friday, September 4, 2020
Statistical Quantitive Methods Essay Example | Topics and Well Written Essays - 1000 words
Measurable Quantitive Methods - Essay Example advertising chief has demonstrated that she needs to realize to what extent it takes Internet clients to get to your companyââ¬â¢s web screen, since there is concern it is taking excessively long and discouraging interest. You have asked custom writers associates and companions at an assortment of different associations to get to your own companyââ¬â¢s site and keep a cautious record of to what extent it brought them to get into the companyââ¬â¢s landing page. I. Clarify which measure(s) of normal and scattering you would recommend utilizing for this information and the explanations behind your inclination. You are required to legitimize the decision of the Statistical Quantities made and figure these amounts. Other factual apparatuses that would best portray this information are standard deviation, Measure of skewness and kurtosis. The standard deviation will tell a trough how close different examples are bunched around the mean giving him the cohesiveness of the information he has. Proportions of skewness and kurtosis give a visual examination of the information that the supervisor can use to reach speedy inferences. III a) The Quality Control division of TV tube maker has seen that on a normal out of each 10000 cylinders delivered, 5 are seen as blemished. In the event that an example of 20 bulbs is chosen, what is the likelihood that non are blemished. What is the likelihood that for a similar example size that in any event two are faulty? We realize that likelihood is a drawn out relative recurrence with the goal that each likelihood of an event of an occasion compares a capacity in dissemination. Utilizing this idea we can locate the normal (mean) number of deficient bulbs then we can get the quantity of flawed bulbs in 20 bulbs at that point reconvert to likelihood. b) A consultancy firm submits three recommendations for thought by three unique customers. It thinks about that the odds of the proposition being acknowledged are 0.5, 0.3 and 0.25 separately .what is the likelihood
Tuesday, August 25, 2020
Can Yahoo Still Attract Tech Workers? Essay
Presentation An American worldwide Internet enterprise known as Yahoo! Inc. is one of the most notable Internet locales out there. Hurray is continually extending and searching out and selecting for innovative programming specialists to enable this business to develop. Any cutting edge employment should accompany serious pay with respect to Yahoo! They need to work extended periods to achive their objectives. Hurray! Representatives try sincerely in any case, play hard also. Audit/Analysis of the Case Yippee! Pulls in more than 700 million guests every month. Presently thatââ¬â¢s a great deal for an organization that has been around since 1994. They may have 14,000 representatives at the same time, they work them so hard that some leave for better paying opertunities. Hurray is a piece of the old Internet with Google being the new age. Their flexibly an interest is exceptionally low. Which means they have more work then specialists. Their laborers continue leaving. Probably the best top workers have even left because of needing to go to the new age web. Hurray need to fortify it correspondences internaly. As indicated by an article composed by Bridgettte Redman on the Chron site she states, ââ¬Å"Internal enrollment works just if representatives approach the data about circumstances. Numerous correspondence channels guarantees that more workers will approach the information.â⬠(http://smallbusiness.chron.com/powerful hr-approach-inside enlistment 25095.html) Developing plans and objectives for every last one of their representatives can keep them on target and to keep them spurred in what they are doing. They can likewise do semi yearly and yearly execution surveys to build up what they have to work more enthusiastically on and what their new objectives/achevments are. Enrollment is presumably one of the most significant for Yahoo!. In the event that they donââ¬â¢tâ have the correct kind of individuals, at that point they will currently have the option to keep them. They first need to see notable Technology Colleges and afterward investigate the absolute generally most splendid, and capable understudies on every grounds. ââ¬Å"Using the ability the board framework, Intercontinental is filling 84% of head supervisor positions and 26% of corporate occupations with current workers. The activity has brought down selecting costs, expanded representative reliability, and helped efficiency and gainfulness. ââ¬Å"(Gerhart, B., Hollenbeck, J., Noe, R., and Wright, P. (2009). Lookin for the privilege canadit with the correct aptitudes and degree you are searching for usualy have just built up the ideal responsibility that the scout is searching for with the special case client support abilities required. Most schools and colleges like Kaplan has situat ion administrations to help graduate to secure their ideal positions. Placing the data in with them with assistance an enrollment specialist to likewise filter candiates and extend Yahoo into the new age and out of the old web world. Rundown and Conclusions Yippee had great representatives that left for different organizations in spite of their extraordinary ability and how great hurray was a direct result of their absence of energy and no inventiveness. Henceforth, different organizations would be advised to ability and significantly more to offer. Yippee should without a doubt enroll individuals from the top best designing schools so as to grow the association of hurray. They ought to likewise cause all the representatives to remain alert and push them to go futher and more grounded with remuneration for their time, difficult work and commitment. References Gerhart, B., Hollenbeck, J., Noe, R., and Wright, P. (2009). Basics of human asset the board (third ed.). New York, NY: McGraw-Hill. Bridgette Redman, Deman Media. Chron. (NA) http://smallbusiness.chron.com/powerful hr-approach-interior enlistment 25095.html
Saturday, August 22, 2020
Sleep Apnea Devices Market Worth $19.72 Billion by 2017
The ââ¬Å"Sleep Apnea Diagnostic and Therapeutic Devices Market [Polysomnographs, Respiratory Polygraphs, Pulse Oximeters, CPAP, Masks, Adaptive Servo-Ventilation (ASV), Oral Appliances, Nasal EPAP, Neurostimulation] Global End-client Analysis, Competitive Landscape and Forecast to 2017â⬠investigates and studies the significant market drivers, restrictions, and openings in North America, Europe, Asia, and Rest of the World. Peruse 147 market information tables spread through 318 pagesand inside and out TOC of ââ¬Å"Sleep Apnea Diagnostic and Therapeutic Devices Market [Polysomnographs, Respiratory Polygraphs, Pulse Oximeters, CPAP, Masks, Adaptive Servo-Ventilation (ASV), Oral Appliances, Nasal EPAP, Neurostimulation] Global End-client Analysis, Competitive Landscape and Forecast to 2017â⬠. http://www. marketsandmarkets. com/Market-Reports/rest apnea-gadgets advertise 719. html Early purchasers will get 10% customization on reports. This report contemplates the worldwide rest apnea gadgets advertise, with gauge to 2017. Rest issues are touted as a ââ¬Ëglobal epidemicââ¬â¢ and rest apnea is a critical supporter of this issue. Obstructive Sleep Apnea (OSA) is the most widely recognized kind of rest apnea; around 84% of individuals with rest apnea are determined to have the malady. Studies propose that around 100 million individuals overall are suspected to have obstructive rest apnea, of which over 80% stay undiscovered. Rest apnea is a generally new market in the clinical field, picking up force at a quick pace, particularly in created geologies. The interest for rest apnea gadgets is scheduled to increment at a quicker pace, inferable from bit by bit expanding mindfulness among the two patients and the clinical society. The worldwide rest apnea gadgets advertise was esteemed at $7. 96 billion in the year 2011 and is relied upon to reach $19. 72 billion continuously 2017. North America was the biggest rest apnea gadgets advertise, trailed by Europe and Asia. North America will keep on driving the rest apnea gadget advertise in the following scarcely any years, trailed by Europe. The Asian regionââ¬â¢s commitment to the worldwide rest apnea gadget showcase is relied upon to get in the coming years, as the ailment gets more acknowledgment. The worldwide rest apnea gadgets advertise, which is comprehensively characterized into Diagnostic Devices and Therapeutic Devices, is seeing high serious power. Portion contention is high, as there are a couple of settled firms and a few little firms with comparable item contributions. The market is overwhelmed by Philips Respironics and ResMed, Inc. , which mutually include 70% of the market. Fisher and Paykel Healthcare, CareFusion Corporation, Natus Medical Incorporated, DeVilbiss Healthcare, Weinmann Medical Devices, and so forth are a portion of the other conspicuous players in the worldwide rest apnea gadgets advertise.
Best Buy Essay
The key factors that lead to Best Buyââ¬â¢s achievement include: Growth in the customer gadgets retail division and the web blast: Constant development in the interest for shopper hardware has become over the earlier decades which has bolstered Best Buyââ¬â¢s effective turnout into the top purchaser gadgets store. The web likewise assumed a huge job in expanding the deals of Best Buy as it had just increase its PC item contributions preceding 1995. The web blast emphatically influenced the customer gadgets industry all in all. Proficient deals staff: Best Buyââ¬â¢s sales reps didn't take a shot at commission which aided making a low weight shopping experience for the clients and assembled a buyer well disposed condition. This additionally lead Best Buy to draw in an all around read deals power which would manage the clients to settle on the decisions more modified to themselves and helped the purchasers in dynamic. Likewise stock was orchestrated by brand name rather than by value run. Both of these were uncommon practices in the superstore business yet functioned admirably for Best Buy. Concentrate on client support (Geek Squad): Best Buyââ¬â¢s confidence in offering remarkable client assistance through item guarantees, individual administrations and at-home conveyance helped Best Buy to separate itself from different rivals in the space. This likewise helped Best Buy in picking up trust and building a solid client base. Procurement of the Geek Squad to support PCs 24ãâ"7 separated Best Buy as a phenomenal item and specialist co-op. Client Centricity: Target advertise division by Best Buyââ¬â¢s Customer-Centric methodology and broad research and investigation of its client base assists Best With purchasing in arranging its stores and preparing its work power to take into account the individual needs of its market sections which urges clients to return to for different buys. Likewise the way to deal with alter the store now and again as far as some nearby prerequisites assists Best With purchasing in expanding its deals fundamentally. Dangers going ahead incorporate expanded rivalry from different retailers and wholesalers like Wal-Mart , Costco, Target and so forth who likewise have an extremely solid dissemination system and client base. Best Buy needs to conclude whether to burn through cash on its business power and customization systems or to contend as far as cost with these different retailers particularly in this low edge developing industry. Best Buy additionally needs to choose to improve its online deals and item contributions so as to rival the like of Amazon and Ebay in the online electronic deals showcase which is developing quickly. Stores like Wal-Mart are becoming massively quick in the retail section and Best Buy needs to contend with them as far as opening new retail outlets too. Another significant hazard Best Buy faces is putting resources into the universal markets taking a gander at the current monetary situation or to keep up solid hold in the nearby US advertise. . Looking forward Best Buy can go up against Wal-Mart and online organizations in the accompanying manners: Continuing to separate itself as a phenomenal client situated business Best Buy offers the most recent innovations at its stores and to pull in and hold clients who are innovation smart it is fundamental for Best Buy to harp on its methodology of client assistance in light of the fact that in the space of trend setting innovation, nothing c an supplant the in store understanding of really cooperating with proficient salespersons. Building up the online item contributions: Best Buy should likewise concentrate somewhat more on its online business so as to abstain from being surpassed by Amazon and Ebay which are developing their business widely. So as to keep up to its client arranged methodology, Best Buy must offer more nitty gritty perspective on its item contributions than some other online contender. It must build its online item offering to a more extensive territory and assortment of items to develop in the online portion. Increment global nearness: Right now, Best Buy is significantly reliant on the nearby US advertise. The global markets are developing quick and contenders like Wal-Mart are developing their business wide, subsequently Best Buy must expand its universal nearness rapidly to abstain from missing out to its rivals in the worldwide markets and furthermore so as to fence the danger of being totally subject to the US advertise. Likewise work costs being less in various global markets, Best Buy can stand to keep up its magnificent client assistance and upgrade its image esteem. SWOT Analysis for reference: Internal| Strengths| Weaknesses| 1. Solid market nearness 2. Proficient workforce 3. Top notch specialized help administration 4. Solid monetary execution 5. Monetary assets to burn through cash on publicizing ;amp; advancement, presenting new items. 6. Expanded piece of the pie and solid brand nearness. | 1. Low edges 2. High reliance on nearby (U. S) advertise. 3. Significant expenses of keeping up stores and representatives. | External| Opportunities| Threats| . Developing worldwide PC and gadgets retail area 2. Client driven working model 3. Extension in the universal purchaser gadgets retail showcase. 4. Solid private brand potential. 5. Disappointment of contenders like Circuit City ;amp; CompUSA has opened doors to improve piece of the pie. 6. Online sales| 1. Rising rivalry from lower value outlets like Wal-Mart and Costco. 2. Online contenders like Amazon, Ebay. 3. Monetary log jam 4. Rising work wages|
Friday, August 21, 2020
Creating False Memories Essay Example for Free
Making False Memories Essay The cerebrum works in odd manners. The article entitled ââ¬Å"Creating False Memoriesâ⬠, by Elizabeth F. Loftus, is an article about simply that. The examinations remembered for the article are evidence that the cerebrum can contort certain recollections so as to fit them to a recommendation made by another person; or a proposal can make whole bogus recollections. A few people are more vulnerable than others to ââ¬Å"rememberâ⬠a bogus memory when a recommendation is made, yet all things considered, anybody could ââ¬Å"rememberâ⬠a bogus memory. The article appeared to bring up that more seasoned recollections that would be less obvious in the first place, for example, beloved recollections, are simpler for recommendations to bend than a memory that occurred lately. While perusing the segment captioned ââ¬Å"Imagination Inflationâ⬠, it became clear that even one that was perusing the article, in the event that one took the model proposals given in the article, at that point it would be staggeringly enticing to recall things that were envisioned. One would understand that it was just creative mind at work, however whenever asked a couple of days after the fact what was recalled about it, it is anything but difficult to accept that it was a genuine memory. By what means can one genuinely recognize memory and creative mind? Of course, is the memory of a demonstration of creative mind not a genuine memory in itself? There are numerous ways that one could be confounded regarding this matter, in light of the fact that actually, recollections of envisioned things can be genuine recollections. Memory and creative mind are so firmly related that it would be hard to differentiate between the two. What was particularly extraordinary about this article was the area captioned ââ¬Å"Impossible Memories. â⬠Individuals really recalled viewpoints from their second day of life, despite the fact that this is therapeutically outlandish. It is basic information that individuals can't start to frame recollections that would be recalled into adulthood until the age of a few. However, given a proposal, individuals will simply go for it. It could be the ââ¬Å"imagination inflationâ⬠hypothesis at work, and it likely is. Numerous individuals are impacted day by day about what happens when kids are conceived or how kids are dealt with in a clinic directly after birth. Individuals hear stories, see the situation in TV and film, and maybe have been there when a kin was conceived. Be that as it may, can certain individuals really recollect their births or presently? All things considered, there are exemptions to each standard. This article made for captivating perusing. The investigations utilized are amazing and it bodes well. It is difficult to accept that specialists can, either purposely or unconsciously, give their patients proposals so as to make bogus recollections. What number of individuals are extremely mindful of what others state to them or how it may influence them? The article is convincing and it makes one mull over how their cerebrum functions. It makes one consider what number of the ââ¬Å"memoriesâ⬠one accepts are genuine recollections from adolescence are in reality evident recollections or bogus recollections. Where adolescence is concerned, most people need to depend on guardians or family members to hand-off stories, yet imagine a scenario in which those recollections are off base. This is the purpose of the article. The human cerebrum is so convoluted and fragile that on the off chance that one isn't cautious who realizes what sort of harm should be possible. Loftus, Elizabeth F. ââ¬Å"Creating False Memories. â⬠Scientific American. 277. 3 (September 1997): 70-75.
Saturday, August 1, 2020
Anaesthesiologist Resume Examples, Template, and Resume Tips
Anaesthesiologist Resume Examples, Template, and Resume Tips Civilization, as we know it today, hasnât always looked like this. It has gone through so many stages of development that the very dawn of humankind looks rather savage.People lived in unorganized groups, they spent their days hunting and getting injured in the process and dying afterwards from the inflicted wounds.Life span was generally short since people were still not aware of the things they had to do to preserve their health.However, as time went by things improved significantly.First, we learned the importance of personal hygiene, and then we slowly moved on to some more advanced actions.Originally we had the bleeding and leeching, bathing in milk, etc.All of these can be observed as predecessors of modern medicine in which there are virtually no obstacles today. (Though we are not sure if this is good or bad.)You have a headache? Hereâs some ibuprofen!You have a fever? Hereâs some Paracetamol for you!Your heart is failing? Letâs get you another one! Piece of cake!Now that we mentioned the heart transplantation, this is a rather risky surgery that surgeons take years to master, so their patients do not die on the table.However, while everyone is praising the surgeons for the successful performance, most of us tend to disregard the burden taken by the mere âsupporting roleâ in the undertaking.This member of the team we somehow tend to forget is the anaesthesiologist.Though mostly remaining in the shadow of the lead doctor, we definitely must acknowledge that anaesthesiologists play one of the crucial roles within a surgical department.However, there is no need to remind you in detail how important you are. You already know that.Now, if you want others to acknowledge the importance of your call, you will have to have some skills other than the professional ones.The skills we have in mind are the skills of presenting yourself and your knowledge and expertise to other people.And, by other people, we mean potential employers.Obviously, this articl e will provide the required guidance for you in case you lack the given skills.Before anything else, allow us to briefly remind you that you must be sure to prepare a good CV. this is the professional ID that must impeccably present you in the best of light.If we have just sounded too scary, donât worry, because here are some of the most important elements of a good CV. When writing yours, make sure that the following is true:Your CV is well organized (make relevant data visible and noticed immediately);You have chosen a proper template (quick hint, use our resume template builder);You have chosen the precise and yet descriptive language;Your CV DRAWS ATTENTION.Since we have just informed you that a good resume is a must-have and we also gave you the most important elements, now we will show you how to write a good, no â" excellent, CV.Anaesthesiologist Resume Example Right Anaesthesiologist Resume Sample Right Create your own resumeIf all of the above seems a bit too complicated for you, thereâs no need to worry!We have our resume template builder, so do not hesitate to use it.And, since we have just presented to you two really good examples of how to write a CV, we will now go one step further.As a matter of fact, we will go through all of the steps giving you the actual guidelines on what to write in your resume and what it is that you need to omit.So, here we go!HOW TO WRITE PERSONAL INFORMATION SECTIONPersonal information section is the easiest one to write.This is where you provide relevant personal and professional information about yourself.No need to say that the details you provide must be fully accurate. We do not think there is a need to explain why.The data in your resume need to be presented in a specific order. Naturally, you will begin with your name and then the rest of the details.NameWhen giving your name, make sure to include your full first and last name.However, it is perfectly safe to omit the nicknames you may have.Miranda Yang RightRicardo Rickolino Webber WrongNicknames are an informal way to address someone, so they do not belong in a formal context such as CV.Keep these for your friends and family since your future employer could care less about the humorous nickname your friends gave you.When writing a professional resume, nicknames are a big NO.ProfessionAgain, since the point of a resume is to present (not to say show off) your professional skills, do not omit your profession here.The profession and the experience are the factors that get you hired eventually.ProfessionDoctor of Medicine with anaesthesiology residencyGeneral Practitioner RightProfessionDoctor WrongWhen providing your profession, i.e. degree, you need to be precise. In case you are worried that your profession is âwrongâ for the opening in question, you most certainly have some other skills to compensate for the (temporary) insufficiency of proper education or degree.PhotoA photo in a professional resume is an optional provision. However, we strongly recommend that you include one.People love to put a face together with the name, and that has nothing to do with discrimination.Note that photos in resumes such as that of an anaesthesiologist, are a more than welcome addition.Your face will more or less be the last one that the patients see before surgery, so if you have any reason whatsoever to hide it or you do not feel comfortable about it, then your patients will not feel comfortable about it either.Now, you need to know that the photo you choose must a reflection of serenity and seriousness, but not gloominess at the same time.This is what we have in mind.Photo instructionsNatural unforced smileEyes openCombed, clean, and tidy hairNatural-looking make-up (for ladies)Neatly trimmed beard (for men)You alone in the photo against a neutral background (preferably white).Proper posture (looking confident, but not conceited). RightPhoto instr uctionsLaughing/GrinningEyes closedMessy and greasy hairStrong make-up (for ladies)Messy/too long beard (for men)Group photo (from the beach, parties, with your family).Slouching WrongAgain, your profession is such that it implies working with people. Obviously, your photo needs to be the middle ground â" not too serious, but not too easy-go-lucky at the same time.Phone NumberGiving your phone number is just one of the possible ways to make it easier for employers to contact you.Along with the e-mail address, this is a perfect tool to establish some real-life communication which is highly valued these days.And besides, spoken word (even through) phone helps establish a more honest bond.AddressThis is another optional part; however, we suggest that you include it, after all.When you provide the address, your potential employer will have a clearer picture of where to find and when they can reach you.Naturally, they will also want to know if you are moving across the state for the jo b.E-mail AddressDoing your job in the 21st century would be hard to imagine without computers and the internet.Along with these, you will also have an e-mail address to share in your resume.webber.r@gmail.com Rightmirandita.mamacita@gmail.com WrongThe distinction above serves to show you how your e-mail address must also be appropriate. Do not use those addresses that are a combination of your name and nickname.Also, do not use those e-mail addresses that you might be using for other purposes (e.g. gaming, online shopping). Pro TipOne more tip:Take extra care that your e-mail address is easily spelt and pronounced. (This is even more useful if you need to provide/repeat your e-mail over the phone.)Social Media ProfilesProviding links to your profiles on social media in a resume has its pros and cons, but somehow we cannot exclude them.As much as they help the potential employer to get to know you, they still might ruin your credibility, especially if you are not careful about wha t you like, post, or share. To stay on the safe side, it is better to avoid them completely.However, if you decide to do it, at least manage the visibility of your post, making sure which of your posts are public. This is relevant when we talk about Facebook, Twitter, or Instagram, for example.On the other hand, it is always a good idea to provide a link to your LinkedIn account.We know that this network was designed for professionals offering and/or looking for a job, so you can never miss with this link.HOW TO WRITE YOUR SUMMARY SECTIONHaving said that personal information section is the easiest to write, we can now safely say that we have reached a trickier part of your resume, i.e. summary part.Writing a summary requires certain language skills which do not come naturally to all of us.The point here is to use as little words possible to make an enormous impression. In this case, your language use must be brought to perfection, you need to rely on expertise related terms, and yet sound refined and confident.SummaryA board-centrified anaesthesiologist with over 8 years of experience. Specialized in cardiothoracic anaesthesia and anaesthesia research. Currently seeking an opportunity to apply the knowledge and experience gathered so far in order to boost the efficiency of the research department and general patient pre and post-op care in a new environment. RightSummaryAnaesthesiologist / DoctorWith experience/ExperiencedWas a good studentWeak language make bigger potential, contribute, to practice WrongWe believe that the difference is more than obvious. This is all about presentation, so present yourself as a strong, experienced individual who is ready for whateverâs coming up next.HOW TO WRITE THE EXPERIENCE SECTIONThe experience section is the central part of your CV. These are the arguments that convince the employer to hire you since you are the right person for the job.When listing your previous jobs, make sure to indicate the years you spent work ing for a specific employer first.After this, you need to provide the full title of the previous employer(s) and immediately afterwards you can indicate the position you occupied within the company, followed by a brief description of the tasks you were in charge of.Experience descriptionWas the head of 5 person team in charge of partnering with community physicians to plan and provide care for patients with diverse injuries.Designed a shift plan including special rotations of staff thus improving their efficiency in providing patient care for 15% (staff members were more rested, focused on the daily tasks, they performed the tasks without the unnecessary stress that inevitably comes with the profession).Collaborated with the OB/GYN department so as to provide relief for women during labour.Coordinated in between teams that investigated new treatments which were still in the clinical research phase utilizing the most advanced technologies at hand, from the aspect of administering ana esthesia to patients in the pre-op phase.Hired as a special consultant during filming Greyâs Anatomy, seasons 14 and 15.Supervised patients and monitored their pain medications before, during and after surgery; offset adverse complications or reactions; recorded the amount and type of anaesthesia as well as the patientsâ conditions throughout procedures. RightExperience descriptionThe head of the teamPrepared a plan for rotation administered anaesthetics unsupervised (!)Helped patientsWorked with medical students WrongLooking at the right (and not at all bright) side, i.e. the column marked wrong, the applicant with a resume like this would not stand a single chance at getting hired. If you wonder why, let us tell you this â" the imaginary applicant marked wrong looks uninterested and moreover uncaring.The data such as given here are insufficient and are setting a completely inadequate tone (i.e. uncaring)Now take another look at the columns and notice the huge language gap b etween them.Experience description - another example5 person teamDesigned a shift plan improving efficiency in providing patient care for 15%Single-handedly administered anaesthetics RightExperience description - another examplea teamprepared a plan for rotationadministered anaesthetics unsupervised WrongSo as not to repeat ourselves, we believe you get our point.However, we have to analyze one of the entries from the column wrong, and that is the use of word unsupervised.When you use this term as opposed to single-handedly or individually, you will see that this might imply you needed supervision to administer the medicine, but you opted for not doing it.Somewhere, this might be observed as a criminal offence. So, see now why word choice is a relevant factor to be taken into consideration?As we can see from the table above, numbers are also a great tool to impress the potential employer.Numbers eliminate vagueness that can sometimes occur with written descriptions. Improving efficiency in providing patient care by 15% says so much more than greatly improved efficiency of the team.Your resume is not a place to obscure or diminish your achievements. Flaunt them and use them to advertise yourself in the best possible way.An important hint for you: Do not provide false details under any circumstances. Do not list working somewhere if that is not true. At least things are easily checked nowadays. Spare yourself the embarrassment first of all, and second of all avoid being discredited for good in a company you are currently applying for.The previous paragraph was a perfect introduction to the second good resume example we have at hand. Right WrongWhat Ricardo did here was being completely honest about his experience and achievements.Obviously, he is applying for an anaesthesiologist job position, but he clearly indicated even before the experience section that heâs only pursuing a residency in anaesthesiology.His honesty will be highly appreciated, and he will most certainly get a chance to prove himself worthy of the employerâs trust.Another hint for you: Your Experience section should not include those jobs that are unrelated to the position you are applying for. List only the relevant experience.Finally, note that your experience section is listed in the reverse chronological order.This means that you will list first the most recent job, and then go backwards listing one after another.By the way, if this is too much trouble for you, then use our resume template builder! It will make your life so much easier.GUIDELINES ON WRITING YOUR EDUCATION SECTIONEducation section comes after the experience mainly due to the fact that employers value your experience more than your education. Having said that, let us show you this distinction. Right WrongAs for education, the institutions you attended are also listed in the reverse order.Here you will also need to list attending years, the full name of the institution and the course and degree.Additionally, we would like to point out how cleverly our second candidate added details on the med school he attended prior to the residency course he is currently attending.Additional tips:you can include your GPA if it was high, or you can indicate that you graduated with honours.you can include a brief comment on the projects you worked on or the time you spent volunteering. Our candidates missed these (maybe there were none, or maybe there were too many?), but this also helps you make a good impression.HOW TO WRITE YOUR SKILLS SECTIONWith the skills section, itâs all about prioritizing. List only those skills that you are proud of and that and contribute to your work. Otherwise, simply leave them out.When writing your skills section, language is something you need to pay extra att ention to.SkillsHighly proficient in interpersonal communication and conflicts resolutionTechnology and computer savvyExtraordinarily handles working under pressure and composed during stressful situationsExperience in supervisory positionsLanguages: English (native), Spanish (advanced), Mandarin (intermediate) RightSkillsGood in communicationWorks well under pressureGood bossCan multitask and organizePolite WrongTo avoid unnecessary repetition, we already introduced you to the benefits of strong language forms.As for languages you list in your resume, this is what you need to know.LanguagesEnglish (Native/Proficient)Spanish (Advanced/Native)Mandarin (Intermediate) RightLanguagesArabic (beginner)French (intermediate) WrongA mere listing of languages is not enough. You need to include the level of your knowledge as well.For example, if you can count to ten in Arabic, and you know a couple of common phrases that does not mean that you can actually speak it. Leave it out so as not to create a false image about yourself in the eyes of others.As for the general interests listed at the end of your resume, these are the activities you like to do in your free time. Make sure to include only a few.These few need to be the ones you truly spend time doing. Otherwise, they are completely irrelevant.After all the steps and guidelines we gave you if you still think you cannot write a resume on your own, feel free to use our resume template builder.ADDITIONAL TIPS TRICKS Always double check your writing for punctuation or grammar mistakes.The data you provide must be full and true to your best knowledge.Be precise and to the point. Avoid lengthy summaries since nobody pays attention to these.Customise your resume to the position you are applying for.CONCLUSIONFinding a perfect job has always been tricky.There are so many obstacles you need to face with, and one of them is applying for a job. If you want to get hired as opposed to other candidates, you need to make a go od impression on the potential employer. And you do this by submitting an impeccable resume.In such a resume, you provide only the best personal and professional details and making such resume normally takes time and effort.Here we presented to you some useful guidelines on how to do it.Nevertheless, if you are still having doubts, use our resume builder and go get that dream job!Good luck! Create your own resume
Thursday, June 25, 2020
Impact of mobile communication technology in theÃâàconstruction industry - Free Essay Example
1. INTRODUCTION The total annual turnover of the building and construction industry in most economies around the world amounts to billions of dollars per annum, contributing approximately 10 per cent of GDP (Olomolaiye et al, 1998, quoted in Farin et al 2001). Although the Construction sector is pivotal in any economy as noted above, it is however an industry which is plagued by inefficiency which is caused by the lack of communication within organisations involved in the delivery of a project solution. According to Bowden and Thorpe (2002), 65% of contractor rework is attributed to insufficient, inappropriate and conflicting information on construction sites. The problem of communication on most construction sites are exacerbated because many operatives working in the field capture data manually (or maybe use a standalone handheld device) which is then physically transported to office. The information may then have to be manually keyed into the office computer system. This process is time consuming and requires extra workforce to re-enter data into the office computer. The introduction of Internet and communication technologies has seen the urgency in the expectations of people within the industry to have access to the latest information produced at any point in the project life. These expectations reflect the increasingly competitive pressure within the construction sector to deliver quicker and cheaper solutions. It also reflects the increased electronic awareness that internet use has cultured, realising a one-stop information on demand medium. The invention of handheld computing device enabled with a suitable wireless capability has proved a valuable innovation which reduces travel costs, increase operative efficiency, and speed data transfer. Data can easily be keyed on site and communicated wirelessly to the office computer. This information can further be uploaded on from the computer to the internet or extranet enabling faster and quicker process which reduces times. The use of project extranet solutions (a single project database shared by all project members: Client; Designer; Contractors; Suppliers) and document management systems is now common on large projects. Mobile communication technologies therefore can strategically be implemented to reduce cost and increase returns on investment. There are many applications of mobile communications in the construction industry. This report however focuses on the impact of mobile communication technologies in the construction industry. 2. Mobile Communication Mobile communication is a technology that eases communication by linking individuals or groups who are not physically present at the same location via wireless means. There are various software and hardware been used such as PDA, mobile phones, CAD application, data capture, project management etc. The mobile phone is still the king of mobile communication, and it has evolved to include smart features such as picture messaging, diary management, e-mail and web browsing. Likewise, many handheld computers (Personal Digital Assistants) are being produced with phone capabilities. For many individuals however, affordable smart phones have become feature rich enough to lure them away from their handheld computer, mainly because smart phones are more compact (Kinns and Babtie, 2005). As smart phones win over the personal computing device market, handheld computers are being developed more for the business computing market. Users in this market are more willing to sacrifice device size for increased computing power, and so devices such as the Tablet PC and Ultra Personal Computer (uPC) are being developed. Unlike most personal use, business use of mobile communication is concerned with the transfer of all forms of electronic data. Equally important is the way in which data and information is captured, and then managed to ensure it is readily available to other people/ devices when and where required. Improved cost effective mobile computing power will further reduce the office/ field divide. The uptake of integrated mobile communication computing devices and services has been significant. This growth in use will continue as smart phone devices gain more features, and handheld computers gain increased computing power. This is the belief of many leading players within the construction and telecom industries. Companies need to plan for this wireless future, and exploit the expected growth in their business strategies. 3. BENEFITS OF MOBILE TECHNOLOGY IMPLEMENTATION With the introduction of laptops into the work environment as a substitute for personal computers, the potential of the mobile worker became evident(Bowden et al, 2005). 3.1. Reduction in construction time and capital cost of construction According to (Bowden et al., 2005) mobile technologies can help minimise time and cut capital cost in the construction industry. Generic benefits of the provision of mobile technologies to point of activity workers include: doing away with retyping/redrafting, minimizing travel time in order to retrieve information and cut travel time to view point of actions or activities. Further explanation of cost savings and time are touched on in each of the developments assisted by mobile technologies below. 3.2. Reduction in operation and maintenance costs Mobile technology can help reduce maintenance cost and operation by improving upon the efficiency of workers and as well gather and provide information throughout the life cycle of a building or structure. The following construction industries (Network Rails London, North East and East Anglia Region) are using a PDA, GPS and GIS system to perform earthworks checks; look at the integrity of their embankments and cuttings. Network Rail currently obtains data from the inspections team on a week to week basis instead of waiting till the end of a 4-month inspection. This allows Network Rail to proactively organise their workload systematically. Getting Data using GIS can easily be grouped by condition enabling the identification of all poor earthworks, including their location (automatically recorded by the GPS). A maintenance team can then be instructed to rectify groups of faults in a single pass. Within 1 year Network Rail achieved benefits for the solution(Bowden, 2004). GPRS connected to PDA has been implemented by Rosser and Russell for obtaining new developments in terms of information from their maintenance engineers and delivering work orders. This has caused a significant change in administration required to accomplish their maintenance operation (Gooding, 2004). According to (Gooding and Bowden, 2004) GPS trackers are been utilised by Biwater for the implementation of fleet management system. This has given them the opportunity to able to analyse and track the actual position of their maintenance crews. Time has reduced drastically since the nearest crew to an incident could be spot on and instructed. The improved planning and implementation has considerably reduced maintenance cost, mileage, and also the fuel costs of the fleet. 3.3. Reduction in defects There have been several changes in national initiative that challenge the construction industry to target zero defects in handover. An example, even though Egan(Egan, 1998)came up with target for United Kingdom construction industry as a 20% annual reduction in the number of defects on handover, Egan proposed that there is considerably number of evidence which suggests that within 5 years the aim of zero defects could be achieved across the construction industry. Egan again touched on how some clients in the United States and the United Kingdom have already attained zero defects on handover. Taylor Woodrow and Mace piloted digital pen and paper solution and PDA solution respectively in their project. Both results gave them the knack to gather data electronically at source in a standardized format, and later were stored in a central database. The following trends could be searched on the database; reoccurring fault, re-offending subcontractors and setbacks in correcting errors. The various trends could be outline proactively. An additional benefit of having a central system for defect management is that the costs of rectifying snags can begin to be understood and hence a more proactive approach to managing quality throughout the construction process should be adopted to avoid these costs(Sommerville et al, 2004). According to (Newton, 1998) a research conducted in Australia depicted that 65% of contractor-rework is attributed to inadequate, unsuitable or contradictory information. Tablet PC system linked to a central database via a wireless LAN was developed by 3.4. Reduction in accidents For workers to report near misses, Mobile technologies could provide a mechanism that would increase the number of near misses reported in the construction industry. Those areas which need improvement in terms of electronic data could be analysed and highlighted. According to (Kiser and Fosbroke, 1994) the most common fatal injury is falling from height. OSHA Fall-Safe programme in the USA came up with a tablet PC audit tool(Becker et al, 2001). The work concluded that contractor control of fall hazards were improved when the conduct of an audit and the reports were generated. Next to fall from height are workers being struck by a moving vehicle which accounted for 10 fatalities in the UK in 2003/2004. In the Oil and Gas industry work is been carried out on the application of virtual exclusion zones for oil platform cranes. Cameras mounted on a crane boom can compute the position of personnel in an area hence could provide audible alert for the crane driver and personnel who are in d anger. Although, some vehicles give audible alerts this caution is not directed specifically to the person in danger and can be overlooked and identified as surrounding noise. This virtual exclusion or information zone could be utilized in the construction industry providing warning around machinery such as piling rigs or cranes and to provide information when entering areas with specific safety requirements. A step further along the line towards improving health and safety on-site is the possibility of automated construction, eliminating the need for personnel to be in dangerous areas. An example application is presented by 3.5. Reduction in waste Construction and demolition (CD) debris constitutes the waste generated during construction, renovation, and demolition projects. CD waste commonly includes building materials and products such as concrete, asphalt, wood, glass, brick, metal, gypsum wallboard, roofing, insulation, doors, windows and frames, flooring, and furniture. The U.S. Environmental Protection Agency (EPA) estimates that approximately 136 million tons of building-related CD debris were generated in 1996 the majority from demolition (48%) and renovation (44%). New construction generated only 8% of building-related CD debris(Fishbein, 1998). The first step in understanding and reducing wastage on-site is to know what materials and equipment have been delivered. Several construction suppliers are currently considering or piloting Mobile IT solutions to facilitate their goods delivery process, providing electronic goods received notes (GRNs) and proof of delivery. A commonly held view is that the weakest point of the supply chain in the construction industry is the site; paper gets delivered and then lost. It may not get filed properly and the people on-site have no real awareness of how all the documents in the supply chain are linked. Lost GRNs are a huge problem for both the contractor and the supplier. One supplier stated that out of 4.5 million tickets issued each year contractors asked them to replace 300,000 GRNs. A contractor stated that on a 45M project 133,000 of invoices was being queried on any one day; Chen et al, 2002). The benefits achieved in relation to waste reduction include: faster location of materials/equipment; certainty that only the correct materials are used, reducing costs associated with damaged items; reduction in lost or stolen items; easier maintenance of a materials tracking database. CPIC (Centre for Performance Improvement in Construction) has developed a toolkit for measuring performance on-site; CALIBRE 2000. Wastage in time, materials and energy are collected by construction observers using a PDA device, which is then synchronised with a central database. The PDA enables information to be collected in real-time and it is then available for analysis by the site team the next day. (Chen et al, 2002).According to (Chen et al, 2002)suggest the use of bar-codes to facilitate a crew-based incentive reward programme (IRP). The workers are rewarded according to the amounts and values of materials they saved from their operations. This resulted in a 10% saving of material wastage. In both of these examples the drawback is that collection of the data still requires manual intervention. (Li et al, 2005). This reduces the possibility of damage to materials from ingress of weather and movement of people, plant and equipment within temporary storage facilities. As stated above, the majority of CD waste is generated during demolition and renovation. RFID tagging provides the capability of attaching information permanently to building components, which in turn offers the opportunity to provide future owners with information about the make-up of each component. Items can then be easily identified for recycling or reuse; even those items that cannot currently be recycled may be recyclable in the future. This would eliminate some of the prohibitive costs associated with identifying and sorting materials, making recycling a more viable option. 3.6. Increase in productivity Productivity is defined as the ratio of the amount of work produced to the resources used in its production. Productivity is increased if it takes fewer resources to do the same amount of work, or the same number of resources can achieve more. The drive for improved productivity in the construction industry has come with the recognition that productivity is inextricably linked to international competitiveness(Teicholz, 2004). Several of the national construction change initiatives promote the use of information technology as a tool to increase productivity, through automating tasks and enhancing collaboration. Task automation provides the following productivity enhancements: delivery of required information e.g. method statements; production of reports e.g. daily progress reports; alerts e.g. notification of safety hazard; data collation, reduces number of administration staff required. One area where significant losses in productivity occur is downtime on-site due to unforeseen problems. The opportunity for mobile technologies to provide immediate access, from the point of activity, to the personnel which may be able to resolve the problem has been an ongoing subject of research(Ballard and Howell, 1994). The Last Planner system has been set up to facilitate this method of planning and its toolset includes: collaborative programming; look-ahead meeting; weekly work plan meeting. The premise is that better planning improves productivity by reducing delays, getting the work done in the best constructability sequence, matching manpower to available work, and coordinating multiple interdependent activities 3.7. Increase in predictability The construction industry is noted for its delays in project delivery and over budget(Bourn, 2001). This is engineered by the following reasons methods of procurement, communication issues and culture. This section of the industry could be transformed by using mobile technology to provide precise real-time progress and cost information as the project progresses. In the above sections it can be observed that communication enhancement from one phase to the other became possible and in some situations have been achieved by most of the construction industries. The following Mobile applications are already in use progress reporting, timesheet, materials management and plant utilisation. This should now pave a way for most construction industries to compare and contrast planned programmes or budget and use this information in future projects. 4. CURRENT USE OF MOBILE TECHNOLOGY IN CONSTRUCTION. 4.1 Software and Hardware Innovations in Mobile Communications 4.1.1 Software Mobile CAD applications: Mobile devices equipped with CAD applications used by Construction personnel can mark-up, view, create and edit 2D/3D AutoCAD compatible designs at any place at anytime on construction site. CAD application may contact engineers, drafters and designers etc. who needs supports of designs and drawings in the construction site. Majority of mobile CAD applications are compatible with well-known mobile devices that run Windows mobile and Windows CE operating systems (COMIT, 2003). In order to communicate drawing files with desktop PCs, mobile CAD applications can connect and swap data with PCs by using ActiveSync for Windows OS or HotSync for Palm OS. The following are some of the CAD applications been used PocketCAD, PowerCAD and ZipCAD. Data capture applications: Bar code scanning, wireless sensors network and data capture are the three various types of data capture application used on sites. One of the mobile data capture system known as SHERPA enable users to collect real time piling work data by using mobile computers through a wireless local area network (WLAN) (Ward et al., 2003). Mobile construction chain supply(M-ConSCM) also named as bar- code enabled PDA, has been developed to create convenience and improve information flow in the construction supply chain environment through the integration of bar code scanner and PDA combined (Tserng and Dzeng, 2005). A new innovation has come into play i.e. Wireless sensor network that consists of various devices capable of a cooperative sensing task and is compared with the concept of ubiquitous computing. A mass concrete curing management system (CMS) has been developed to investigate the possibility of applying wireless sensor network to on-site data collection proces ses (Lee and Kang, 2006). This system can allow the collection, transfer, and delivery of the recorded curing temperature data automatically in real time in a wireless sensor network environment. Project management applications: Applications in the project administration area provide users with the capabilities of project and programme management such as construction activity review, activity monitoring and updating, progress management, risk management, Microsoft Project file view and update, and material and equipment management, through their on-hand mobile computers. Available commercial applications include Primavera Mobile Management, CYtools, and OnSite FDM. 4.1.2 Hardware Palmtops / PDA Personal Digital Assistance PDA (Personal Digital Assistant), sometimes known as a Palmtop, is a mobile computer that allows you to store, access, and organize information. More sophisticated PDAs can run word processing, spreadsheet and industry specific applications and also provide e-mail and internet process. Some models now offer the functionality of a mobile phone and a PDA in a single unit. These units use either a Palm or Microsoft Windows Pocket PC operating system. In general, the more functions offered on the device, the shorter the battery life. Currently, there are no rugged devices available in this category, since they could be seen as more akin to a non-rugged mobile phone. Many of these devices use an electronic pen (called a stylus) rather than a keyboard for input. This is associated with special operating systems that support handwriting recognition so that users can write on the screen or on a tablet instead of typing on a keyboard. Hand-held Computers A hand-held computer offers the main functionality of a laptop in a smaller package. They feature a full QWERTY style keyboard and a landscape display. Typically, they run on a Windows-based operating system, like a desktop PC. Because they have a keyboard, this type of device is probably best suited where it can be used on a stable base, for example in a pick-up truck. Although the Windows CE OS is more demanding on battery life and memory, many of the devices will compensate for this by providing more memory space and larger capacity batteries as standard. 4.2 Health and Safety One of the most hazardous industries to work in the is the construction industry; it is noted that 3.6 per 100,000 workers in the United Kingdom encounter fatal injury, associating with 70 people, depicts an unfavourably average of 0.81 in the industry(Mckerman, 2001). 4.2.1 Case Study (Health and Safety-Skanka) The civil engineering division of Skanska known as Skanska Tekra Oya in Finland is currently using SMS/WAP and MMM based system which propels them to collect data electronically by using the supervisors phone. It then passes problem notifications on to the subcontractors who then respond with via SMS when problem is resolved. Issues which took days to complete could be dealt with in few hours and since then accidents have decreased drastically with the use of the system. The gathered data are stored on a central database facilitating the classification of trends to be automated. Continual non application can be emphasized and a more positive approach of doing away with their reoccurrence can be established, such as training preventative measures put in place e.g. warning signs placed at dangerous areas and barriers around overhead electricity cables. In addition, subcontractors who are time and again causing safety issues and are reluctant in putting an end to them can be dealt with properly. Finnish Institute of Occupational Health came up with a mobile system that replicates MVR safety method for civil engineers and is used in most construction industry in Finland. Coming up with a single tool and comparing across construction sites will smooth the progress of improvement hence reduce. The Accident Triangle(Heinrich et al, 1980)illustrates that fatal injuries are just the tip of the iceberg (Fig 1). Theory states that if you reduce the number of near misses, this in turn will reduce the number of fatalities. The records show near misses is performing badly. The reason could be the number of times they occur and the amount of paperwork that has to be completed and recorded. 5. Emerging Trends and innovation The core reason of mobile in the built environment is its mobility. Mobile phones (speech and text messages), cameras in cell phones, GPRS are the commonly used within the construction industry. In terms of logistics, quality control and control of equipment, RFID reader is applied. Additional use of RFID is the access right control, emerging in janitorial services; access rights controls and mobile access managements with very short-range wireless point-to-point interconnection technology. This technology is likely to become common in mobile phones, and in fact such kinds of phones are been in use in the industry offering intuitive and user-friendly touched based communication. The interactions that exit between the two devices are reasonable in terms of price and also low immunity to eavesdropping. According to (Tolman et al., 2006b) the new messaging and communication systems been used gives current method and possibilities to communicate and manage with embedded sensors networks in a buildings with general terminal equipments through local or global information networks. During the past decade the port of services has been rated as one of the most powerful trends in information technology. Services offered by web can be thought as environment where services are delivered in a formal way and this formal are interpreted by client side browsers. With the nature of all browsers been able to use all services it is of no importance to install locally specific software to use a specific service. Web paradigm is gradually taking place in mobile devices but there have been several impediments that slow down the trend. In technology mobile browsers are not in the same level as compared with that of desktop browsers and top of that since the web has been design with more resources, the of resources in mobile devices are limited hence makes it a problem. That indicates that mobile devices that use web pages should be designed for them. Web paradigm is a natural fit to mobile devices as distributing software to mobile devices is cumbersome and leads to difficult maintenance problems. 6. Challenges of mobile Technology in the construction industry Though the above benefits of mobile technology shows a headway for most construction industry in using mobile technology there are several challenges faced by the industry that needs to be addressed. 6.1. Hardware for Mobile Technology Handheld computers, lightweight and compact laptops have come into extensive use over the past few years; other devices like wearable computers are also making great impact as well. Where improvement has been sluggish the integration ofmobilehardware seams to bridge a users desktop, activities whilemobile, and the Internet. There are four basic issues that complicate implementation and design (Satyanarayanan, 1996). In relation to static element mobile elements are resource-poor in terms of weight, size and power. Due to the transmission of data through open space mobile communication are vulnerable to security violation. In addition, wireless connectivity is very unpredictable in reliability and performance. Finally,mobile elements must rely on limited energy sources. It is important to note that these issues are not artifacts of current technology but are intrinsic to mobility. Collectively, they complicate the design ofmobile technologysystems. As a result, even though important r esearch progress has been conducted, the implementation and design of mobile computing systems still remain a problem. 6.2. Location-Sensing One of the most widely used location-sensing today is the Global Positioning System (GPS). Using time-of-flight information derived from radio signals broadcast by a group of satellites in earth orbit. GPS makes it possible for a relatively cheap receiver (on the order of $100 today) to deduct latitude, longitude, and altitude to an accuracy of a few meters (Hightower and Borriello, 2001). The U.S. Department of Defence maintained the expensive satellite infrastructure, but with the investment been made many civilian benefits from it. Without a doubt, the past few years there has been a real sudden increase of GPS-based services for the consumer market. Although GPS is certainly important its location mechanism is not universally applicable. It cannot function indoors, particularly in places where there are steel-framed buildings and for many applications its resolution of a few meters is not adequate. GPS requires coordinates relative to specific objects whereas some applications (e .g., guidance systems for robotic equipment) use an absolute coordinate system. Further, the specific mechanism required for GPS impose cost, energy use requirements and weight that are difficult formobilehardware. Consequently, the following mechanism for tracking location (e.g., active badges, e911, and Cricket) considerably varies in their capabilities and infrastructure requirement. System costs vary as well, reflecting different trade-offs among device portability, device expense, and infrastructure needs. For applications involvingmobileobjects, orientation sensing (determining the direction an object faces) is also important, and this continues to be an active area of research. 6.3. Wireless Communications There has been a tremendous growth in the deployment of wireless communication technologies in the past decade. Although there has been considerable increase in data communication technologies, the most recognised one is voice communication (cell phones) which has been the primary driver. With many vendors offering hardware that supports the IEEE 802.11, wireless LAN technologies is now widely embraced in the construction industry (Williams, 2000). Although Bluetooth offers no bandwidth advantage as compared with 802.11, its standard has been backed by a number of hardware and software vendors and it is cheap to produce and frugal in power demand (Haartsen, 2000). The lowest-cost wireless technology in the market is the Infrared wireless communication this is due to the fact that it is primarily used in TV remote controls. IrDA supports handheld computers, laptops and other peripherals devices like printer been used today. Infrared wireless communication must be by line of sight, wit h range limited to a few feet. It is also affected adversely by high levels of ambient light, such as prevail outdoors during daylight hours. Greenhalgh claim that WI-FI network do perform well in open space when on construction site, due to the fact that when projects starts, getting wireless signals is easy but at a stage when they are boxed there seems to be interferences (COMIT, 2003). It is difficult to foresee what new wireless technologies will emerge in the future. Power consumption clearly will be an important factor for untethered devices, such asmobile computers, PDAs, and Smart Dust. In addition, it is clear that advances will be constrained by trade-offs among four factors: frequency, bandwidth, range, and density of wired infrastructure. Devices operating at a higher frequency could have greater bandwidth but would require major advances in high-frequency very-large-scale integration (VLSI) design. Advances also will be constrained by policy decisions on frequency usage (spectrum allocation) by the Federal Communications Commission. Range is fundamentally related to transmission power, but generating high pow er at high frequency always has been a difficult technical challenge. This is not a short-term annoyance but a core, long-term requirement of successful system architectures 6.4. Privacy and Trust Mobile computing and distributed system have been experiencing problems when it comes to privacy and this is greatly complicated by pervasive computing. Smart spaces, surrogates imonitor and location tracking are mechanisms used on a continuous basis. As a users keep on depending on this pervasive computing systems, they get more knowledge about the behaviour pattern, habits and the movement. Utilising this information becomes vital to successful proactivity and self-tuning. In addition, unless information used is strictly controlled, they will be unsafe from targeted spam to blackmail. Indeed, the constant loss of confidentiality will discourage users from using computing system. Greater dependence on mobile communications on site means that users should have confidence in that infrastructure to a considerable extent. On the other hand, the infrastructure has to be confident enough to authorise and identify users credential before responding to request. It is very challenging to cre ate this mutual trust in a manner that is minimally intrusive and thus preserves invisibility. Privacy and trust are likely to be enduring problems in Mobile communication technology in the construction industry. 7. Conclusion The current usage of mobile communication in the construction industry brings many change improvements wished for within the industry by enabling point of activity workers to participate in the electronic flow of information using mobile technologies. Although this is not the only solution to the problems to be addressed, it does offer the potential of significant impact in reducing construction time and cost, defects, accidents, waste and operation and maintenance costs whilst improving predictability and productivity through for example: access to accurate up to date information at the point of activity reducing the cost of remedial work through doing it right first time; Auto-ID of materials enabling faster location and accurate identification, reducing wasted materials through loss, damage or oversupply; Real-time accident and near miss reporting enabling a proactive approach to health and safety on-site; Reduction in down-time due to unforeseen problems through enabling instant and meaningful communication with off-site personnel; Proactive maintenance scheduling and remote delivery of work orders; Provision of accurate real-time progress and cost information which can inform later project stages and/or future projects. 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