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By James, August 3, 2010 6:04 pm

One of the biggest problems with running a school, college, university or other educational establishment is keeping the grounds tidy and litter-free. Schools and colleges can very quickly become untidy, partly because they house hundreds of young people with appetites for crisps and snacks.

Most of this rubbish is responsibly discarded in the school litter bin, however, in some schools and colleges. Headmasters and principles find certain areas become littered very quickly.

Often the playground or school yard and playing fields are quite susceptible to litter, with crisp bags and sweet wrappers quite often blowing across these areas. While there is much a headmaster and principle can do to ensure that pupils and students always use the school litter bins when necessary, solving the problem often takes more than threats of detention.

By and large, people – even students – would like to throw their rubbish away sensibly but it is often the size and logistic location of the school litter bins that causes the problem.

One of the major causes of littering in schools and indeed other places outside of educational establishments, is simply down to the lack of  litter bins. People will walk a good few yards to dispose of their litter, however, if that journey turns to a ten minute or an amble up stairs and around a corridor, the temptation to throw the litter on the floor can often be too strong.

Also litter bins that fill too quickly are also a cause for littering as people will continue to use a bin, even though it is overflowing and a full bin becomes nothing more than a pile of litter. It can also help to ensure you have the right school litter bin for the area. A small bin next to the vending machines will quickly fill while a litter bin placed in a quiet corridor can go unused for days.

Ensuring that there are enough bins in enough locations and they are the correct size will go a long way to ensuring that pupils and students are not littering but are using the school litter bins provided.

By assessing the number of school litter bins and their location and size can quite often reduce the amount of litter suffered by the school or college and will help to make the environment a better place to work and learn for all.

Richard N Williams is interested in waste bins and rubbish removal. Please visit us website if you are interested in school bins or other waste bins.

Article Source:http://www.articlesbase.com/college-and-university-articles/keeping-the-school-yard-clean-1478655.html

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By Onslow, March 20, 2010 11:56 am

Management education delivery-Challenges & Opportunities

One of the many ads telecasted on various channels, that attracts the most is of BSNL where a son working in some foreign country is able to talk, to see and get seen by his family members in India.

Why I like this ad! It is because it gives a glimpse of the power of IT, it refers the fact that how this knowledge of IT has revolutionized our lives, our day-to-day activities, how it has increased the efficiency and effectiveness by supporting decision making process. With the further technological progress it is likely that IT will become more pervasive and will continue to make impact in our lifestyles in significant ways.

A lot has been said and done in terms investment in this technology by businesses but irony is that that this IT revolution has not been able to impress really the core processes of learning and teaching in business schools. Researches have shown that academic institutions lag behind corporates by almost a decade in the adoption of new technology.

But, do not loose all the hopes as few initiatives have been taken in this respect like at Lal Bahadur Shastri National Academy where PC’s have been installed with proper networking in classroom. However, the utilization of these PC’s to access common details about the real world is very limited. Secondly, University of Maryland has built up electronic classroom that enables group of students to communicate with each electronically and anonymously.

Educational institutions primarily deal with the creation, packaging and delivery of information and knowledge and to my belief IT can profoundly alter the ways in which tasks are done.

This following pages deal issues concerning IT in management colleges and standards of management programs offered by universities.

1)Issues concerning scope of IT in management colleges-

As, I have mentioned earlier that institute basically deal in CPD (creation, packaging, and delivery) of knowledge. So, it becomes all important for management institutions to comprehend the changes that an IT intensive system will demand in CPD.

(i) INCREASED EMPHASIS OF SELF LEARNING AND DISTANCE LEARNING:- I was having a discussion with the respected Vice-chancellor of Uttrakhand Open University (UOU),Dr.Hasan, where he was sharing his thoughts on the distance learning mode and he was working on the pattern of IGNOU to make this learning in a small state like Uttrakhand more interactive through satellite.

If this experience is any indication then one trend is clear that is distance learning is going to become more interactive and secondly there will be greater reliance on exploration and self-learning.

These trends have been promoted by the advent of multimedia and internet.

This implies that in due course of time the classroom teaching may become second choice or lesser significant. The enrollment in DLP has increased and at least seven Open Universities have been created. I have already discussed about UOU, Take case of INGOU, which uses two-way audio and one-way video to conduct classes in 50 centers simultaneously. It is a fact that more students are enrolling in Open Universities even in developed countries because of faster communication through electronic means moreover as the cost of two-way conferencing comes down, the necessity for classroom contact may totally disappear.

Moreover, upto now distance education and traditional educations are treated as two different entities. But this approach has to be changed. This will help in sharing the limited faculty resource with a large number of students located in different geographical locations.

Further, courses need to be redesigned as student is placing greater reliance on self learning rather than being taught by a ‘teacher’. The teacher has to assume the role of a facilitator and at the same time delivery process has to be changed from verbal-lecture based to computer-based lessons using multimedia.

(ii) IT Knowledge For Would-Be-Managers Of Tomorrow:-

Usually entrants to management education are having certain amount of computing knowledge thanks to their schooling. Building on this base, managers need to develop a level of comfort in dealing with spreadsheets, emails, word processing etc. By doing so, management institutions will be enhancing the working life of an executive in any function. Hence, the classes must be assisted by lot of lab sessions to give enough exposure and practice with regard to the productivity tools and platform to make themselves aware about different types of computing environment that they are going to face.

(iii) Internet Facility:-

1. The effectiveness of library searches can be greatly enhanced by providing access to electronic forms of journal in library.

Intranet, LAN can connect students in classroom to instructor in Lab, can promote communication between teacher / students etc.

(iv) EXPERIENCE OF OTHERS:-

Another point, that I would like to use to highlight the role of IT discussed in this paragraph: An adage goes conveying the essence that an intelligent is a person who learns not only by his own experience but also by the experience of others. One does not need to put hand in the fire to have first experience of what happens when it is does so but, believe me that most academicians do not have a chance to share the experience of other academicians to interact with other researchers, to share their own experience with others. One of the reason for this fact is that faculty does not have enough opportunities to attend conferences/seminars. (To some extent faculty working in University Departments, have this advantage but faculty associated with private institutions are not that privileged)

Here, role of IT comes into play with emails one can communicate with their counterpart in any part of the world. The researcher can create blogs where he can receive the solution from various source to this problem. Computer conferencing offers to researcher to work with colleagues working in other places.

(v) IT AS A PEDAGOGICAL TOOL:-

The aspect of this technological which a management institute must consider and in which as a teacher/facilitator. I am most interested in the effectiveness of IT as pedagogical tool. My own experience says that IT enhances the effectiveness of overall study, management exams, management games, and even of ancient time’s lectures. The case discussions in the live from can be shown to the students which will be enlivened activity. Tools of analysis like SPSS can also e provided to help the student to analyze the data to construct more realistic scenarios for their analysis. Moreover, a common problem that one comes across during case analysis is the inability to convey qualitative data through textual perception for example listening to Chief Executive’s speech on his company’s objectives be a better option than reading the text.

1. These presentation slides need not be confined to textual material, they can include photographs, audio/video clips, even the animation into slides can be introduced, in a different node, these slides are if carefully prepared and presented then, they can serve as teaching aids for the first time teacher (practices that I have seen in some English speaking classes where they give set of study matter to the faculty member and he is supported to teach in a standardized format). Another, important tool is how of teacher to make the students learn in management games.

Games which are computer aided can simulate complex real world experience and enable participants to perform defined roles in a competitive setting. IT also promotes communicative among students and between teachers and students. Such technologies can also be used to provide immediate and accurate feedback to the teacher. The use of IT as a pedagogical tool is quiet limited. The key task ahead is to generate enough motivation among the faculty members to upgrade their own slides and insert time in experiments with new forms of teaching.

I do not feel shy in accepting the reality that despite all the benefits of adopting IT cannot be treated as a solution for all educational problems. Moreover, a lot of research is still required to assess the impact of technology on learning and teaching.

2)ISSUES CONCERNING THE CONTRIBUTION OF UNIVERSITIES IN MANAGEMENT EDUCATION:-

The second issue that I would like to address is about the relationship between Indian Universities and Management education. Although lot of autonomous institutes have come up and are also making their contribution but I am going to restrict my concerns only about the value that should have been added ( but which has not happened) by such universities to management education because they account for 70%of the output of PG in management.

The activities which add value-teaching, training, consultancy, and research-are not adequately comprehend in the University system. The curriculum is fixed and no mid-course correction or changes are permitted. Curriculum change is made through an actual process that is initiated by Board of Studies and concluded by Academic council. The inadequacy of curriculum is often responsible for the unemployment of University graduates. This is probably the reason why industry is more enthusiastic about recruiting graduates from private, self finance, autonomous institutes in comparison to University graduates.

Another area where value addition can be done is in the area of training and research. Management is a field of study which is very dynamic and practical in nature. Keeping this fact in mind it becomes all important that academicians are in constant touch with the working executives so that they can feel the pulse about what is happening in industries and what are the problems being faced so that research or further studies can be carried out to search the solution. But, this culture is missing and if any training program that any University department conduct basically rely on the networking that few senior faculty members have developed.

1. This again reflects the complacency factor among the University teachers.

Next issue is the hard reality that agencies which can influence the university education are not able to make then impact. Broadly speaking, to some extent AICTE has made impact on the autonomous institutes but almost not at all on the University system. Even the UGC has not been in a position to enforce academic standards with regard to universities system.

The present scenario is not very encouraging but on a positive note we all know that to every problem there is solution that exists what is required in the true will to make things happen. If the readers are kind enough to pardon me, I would like to make following suggestions:

(1) IT should be treated as basic infrastructure in organization.

(2) continuous investment should be made in the development of IT in these education management institutes.

(3) Taking the examples of IIMs, XLRI. I strongly suggest trimester system of education in place of one exam or two exams in a year.

(4) The system of holidays should be different for management departments. It should be done in such a way that holidays are not gained on various festivals, however for major festivals a off of 1-2 days can be permitted.

(5) MBA department of universities should be run as a separate SBU and more autonomy should be provided to these. At the same time the interference in conducting exams or other activities by the respective Universities should be minimum.

Lastly but not the least, I would like to add that if universities do not want themselves to be treated only as a degree granting authority they should take instant & concrete steps to raise the standard of education by paying attention to the above mentioned problems and suggestions.

Let us hope for the best.

Research Associate, ICFAI National College, Pantnagar (INDIA)Article Source:http://www.articlesbase.com/college-and-university-articles/management-education-delivery-system-980962.html

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By Onslow, March 16, 2010 8:38 am

Your child’s favorite teacher is retiring. Perhaps you’re a lifelong learner and it’s your teacher that is leaving the academic field for a new stage in their life. Either way, you’ll want to mark that occasion with a gift that says how much you appreciate the knowledge that they’ve shared with you or a loved one.

Don’t just pull a gift off the store shelf. A personalized gift will convey the message of the occasion. What is more unique than their name or initials (and maybe the year) engraved, etched or debossed on a present? It converts a plain gift into a one of a kind gift. And, they will remember who gave it to them. It will signify the personal relationship between teacher and learner. There are many options to choose from depending on the interests and personality of the educator. Take a moment to consider what you know about them and choose a gift with that in mind.

Does your teacher have travel plans after retirement? Or will they stay closer to home and garden and entertain? A gift that recognizes their talent for teaching can also be heartfelt. Make it easy for them to bring a little beauty indoors with a gift of a personalized vase to use with the flowers from their newly attended garden of retirement.

What about that special photo of your child and the teacher at school? Imagine that picture in a personalized frame engraved with a thoughtful sentiment. Just hop online at your convenience and you’ll see how easy it will be to get a personalized gift on its way to your home. You won’t have to worry about store hours or parking.

Your teacher will still have paperwork at home. Personalized desk accessories will keep thoughts of you at hand. What about a personalized leather briefcase? If your teacher has a hobby you can choose a gift with that in mind. Many people have a favorite activity like golf, learning about wine, or entertaining. It will show in your choice of gift if you have given thought to how they enjoy spending their time. Just look online to find beautiful gifts that will bring your idea into reality.

Great teachers give so much of themselves to their students. As much as they appreciate a kind “Thank You”, you can be sure that an appropriate gift is always welcome. Maybe you’ve been chosen to select the class gift for a teacher. A personalized art print or a gift basket will be options that you’ll want to consider. Everyone wants to know that they’ve made a difference. Teachers especially are often taken for granted. Let’s use a great gift as the opportunity to say thank you!

Article Source: RSI-TGI Teachers Gift Ideas

Mary helps shoppers with gifts ideas, shopping tips, and explains how to benefit from personalized gifts. Sponsored by Wealthwood TeacherArticle Source:http://www.articlesbase.com/college-and-university-articles/teachers-gift-ideas-986006.html

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By Onslow, March 8, 2010 11:48 pm

Writing an essay is a tough task. When it is for admission purpose then the difficulty or challenge is doubled. These are your only way of creating an impression and getting an admission in the Graduate School of your choice. But there is no need to panic. Here are some handy tips which will help you in pursuing your dream.

How will your prepare yourself for writing these admission essays?

As this essay is an introduction of yourself, you have to be honest while writing it. Mention about every aspects of you. Your aim, achievements, failures, special attributes, strong part of your character must be focused. This is just an introductory step. The next step is writing on a topic given in your entrance exam.

How can you write an unique essay for your admission test?

This essay is your only way of grabbing the attention of the admission board. You have to make it unique and of good quality so that you will be the first choice of the selection committee. These are some tips to do it.

• First and foremost task would be to choose the correct topic. Choose topics in which you have ample information to put.
• After selecting a topic go through it and make a virtual framework in your mind. Always keep in mind to be very specific to the topic.
• The first attention grabbing element is the title. It should be very catchy. You have to write it in such a way that your examiner will be forced to look through it.
• Then give a brief but informative introduction. The introduction is the guide to the body of the essay. It should give a brief summary of the main topic.
• The body of the essay should be nicely framed. It should have a natural flow. It should be embedded with relevant information in proper logical order.
• A proper conclusion is a must. It should be an interesting way of wrapping up the entire topic. It should be written in such a manner that the reader ends it on a sweet note.
• The most vital part of this process of writing is revision. You have to continuously revise your writing. This reduces the possibility of making grammatical errors and spelling mistakes.

Therefore follow these easy steps for writing a Graduate Admission Essay and get your dreams fulfilled.

Graduate Application Essays – Penn & Paper has been helping students prepare brilliant admissions essays for years. Whether you’re applying to college, business school, law school, medical school or graduate school, you can trust our essay editing services to make your personal statement shine.

Article Source:http://www.articlesbase.com/college-and-university-articles/graduate-admission-essays-your-road-to-the-school-of-your-choice-1598238.html

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By James, February 26, 2010 9:25 am

When you bought your personal computer, it came loaded with a selection of software.  Each of these contains a number of programs that allow you to perform a range of functions, such as word processing and spreadsheet work.  The software that comes with your computer is known as bundled software.

Although this bundled software allows you to perform many different tasks on your personal computer, chances are you will eventually want to use more specialized or advanced software.

If music is your hobby, for instance, you may be interested in a particular composing package; and if you have children, you may want a selection of games to play.  You will also want to use virus checking software to keep your computer free from viruses.

When checking your requirements, you’ll want to make sure the software you buy will definately be able to run on your computer.  Before you go shopping for software, check to see how much RAM (random access memory) your computer has and how much storage space is available on the hard drive.

Then, when you shop, check the software package to determine how much RAM and hard disk space the program requires as well as whether it will run on your version of Windows.

Just in case you dont know but to check the available disk space, double click on My Computer, then click once on C drive to highlight it.  Go to the File menu and click on Properties.  To see how much RAM is built into your personal computer, go to the Start menu, select Settings, then Control Panel, then double click on System.

In summary, computer stores are good places to start looking for software but there are other sources that will save you money.  You can look on the internet for downloadable software, then follow the on screen instructions.  You can look at PC magazines because some will offer demonstration or shareware version.  Lastly, you have mail order because some vendors offer prices that are often lower than retail stores.

Trying to find a home business that really works? Tired of looking at the wrong places? Well, if you get with an opportunity that can solve Real World Solutions, you will realize there is a positive way to start on the right path to Financial Freedom. To find out more, check out both links.

Article Source:http://www.articlesbase.com/college-and-university-articles/how-to-extend-the-use-of-your-computer-with-extra-programs-1618130.html

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By Onslow, February 25, 2010 10:43 pm

Arrays Technosys is a prominent training institute providing custom-catered syllabus to improvise the learning patterns and to enhance the job opportunities for candidates.

Formed by Industry experts, the training and management team at Arrays Technosys knows exactly what it takes to ensure a brilliant career in the IT domain. Perfection is what we aim for and precision is what we apply to achieve it. We strive to bridge the gap between the theoretical and outdated knowledge taught in the colleges, and the practical needs of the industry.

Our well-planned training method is the reason behind our confident assurance of 100% Job Guarantee on our professional training courses, and not a hollow promise. Our novel approach towards training the students has inspired confidence among our Recruitment Partners, which has led us to be their trusted sources for the requisite talent pool. We ensure that our students are well-acquainted with every facet of software development. This is how we convert freshers into ‘Industry Ready’ professionals, ready to take up any job successfully.

Apart from students, many companies have benefitted from our professional training modules. At Arrays Technosys, we help the companies enhance the expertise of their employees. This helps them to take on bigger and better projects, thus increasing their revenue. The companies enjoy a dual benefit:
1. Lowering the cost of training the employees.
2. Getting trained manpower at the right costs.

The various courses offered at Arrays Technosys have been formulated by highly experienced professionals in the niche domains. The course structure has been painstakingly tailored to meet the requirements of the industry. Extreme care has been taken to ensure extensive coverage of all the relevant topics.

The courses cater to the over-all development of the student as a software professional. The prime focus is on the practical know-how and logic development, rather than theoretical knowledge.

We have designed a range of courses for you to choose from. If you wish to have a successful career in PHP development, you can opt for the exhaustive course – Arrays Smart. If you wish to brush up on your existing knowledge, or wish to test the waters first, you can opt for the modular courses.

For More Information
Please Visit Our Website
http://www.arraystechnosys.com

Article Source:http://www.articlesbase.com/college-and-university-articles/arrays-technosys-php-training-institute-in-pune-1620520.html

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By James, January 30, 2010 6:05 pm

Are you the one who has finished the fourth book this week, and is hunting all over bookstores for something along the same lines that hasn’t been read already?

If yes, I feel your pain. I used to suffer in much the same way, until the vast database called the Internet assaulted me with its range of books, neatly divided into lists and selections as if for my convenience.

If you feel like you’ve exhausted all the books in your favorite genre, here are some things you can do to give your love a new life -

1. Find lists. Looking for genre-based lists just might yield a list of related books you have not read, or may at least lead you to a related genre you feel interested in exploring.

2. Find the latest releases. Here’s a tip: on the publishers’ websites, the “Coming up” page is usually where the latest releases are to be seen. Subscribe to the catalogs of online bookstores, where you may also find books that will suit you.

3. Read the readers’ magazines. Reader’s Digest, in spite of being one of the most popular magazines, doesn’t really discuss books in the way a bibliophile needs. Subscribe to literary magazines on the Internet and off it, and you will find a wealth of reviews, discussions and debates to keep you busy.

4. Write for the magazines. If you are the first one to lay your hands on a book and read it, why not write about it too? You don’t need to be the first to write about a book either – if your take is completely different from the others, people will definitely have something to sit up and take notice of.

5. Read previews. The best way to read previews is to step into a large bookstore and start reading, but not everyone has time for this. Google Books carries previews of many famous books, while other reading sites also feature the first few pages of books they recommend. This will help you make a better choice when you finally choose to buy books.

6. Join a library. The local library may not always be enough for you. In this case, you could join a larger library, especially one which allows you to issue books from a network instead of just from its own stock.

7. Look up references. If you like how your favorite author uses history, why not read up the history yourself? Sometimes, this can give a completely different perspective on the book – especially considering the fact that no two historians say the same things about the same events.

If you feel you have exhausted a set of books, you have either chosen the wrong books or are doing something wrong. There are always new ways to look at books – what does it tell you about the author? What does it have to say about feminism? Does it comment on modern life(even if the plot is located in Na’vi!)? Explore these ideas, and you will not run dry for a long, long time to come.

Read Book reviews and find interesting History books

Article Source:http://www.articlesbase.com/college-and-university-articles/satisfying-a-bibliophiles-hunger-1710763.html

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By James, January 23, 2010 12:51 pm

Introduction
Recently a consultant of the Fair of Sciences sent me a message requesting the solution of a proposed subject, in college entrance exam, by FURG 2007. Here is the proposed subject:

“An adventurer plans to jump of the high of a bridge tied in an elastic (a radical sport known for ‘bungee jumping’) cable. The other extremity of the cable is tied in the bridge. In the beginning, the jumper’s movement is a free fall. Starting from the point in that the cable is stretched out, the jumper begins to slow down until a certain position, where it stops. Of this moment in before, the cable begins to pull the jumper upward. This position, where the jumper inverts the fall sense, it marks his/her largest vertical displacement D regarding the bridge. Naturally that the height of the bridge should be larger than D. it Considers a jumper’s of mass 80 kg hypothetical situation now using an elastic cable of 20 m of length. The elastic constant of the cable is 160 N/m. Calculate the value of D.
Observation: the mass of the cable can be despised in relation to the jumper’s mass. For acceleration of the gravity, use the value 10 m / s²:
The) 20 m.  B) 25 m.  C) 40 m.  D) 36 m.  And) 10 m.”

Being fallen back upon the search motors with the discriminador “bungee jumping” is had, as return, hundreds (or else, thousands) of places; that you/they say everything on the sport, less like him it works really — and this was the objective of the proposed subject exactly. This article has as purpose to fill out this gap and, as it is Science, every suggestion / critic will be well arrival.

I will always maintain in view the solution of the proposed subject and the possible roads for you solve her. Like this, let us enhance the data of the subject:

the jumper’s mass: m = 80 kg
natural length of the cable: L = 20 m
constant elastic of the cable: k = 160 N/m
local acceleration of the gravity: g = 10 m / s²
(to neglect effects of the air and mass of the cable)

We should determine until that distance D will go down the jumper, to count of the bridge.

First solution
In this first direction I will follow the technique of Newton’s laws, verifying the active forces in the system. In a second solution we will use of the conservation of the energy.

Referencial and phases of the process
Let us adopt as reference axis y, in the vertical that contains the point of the jump and, in the bridge we adopt y = 0; the positive sense is ‘down.’ The “jump” presents two different phases.
In the first a free fall is verified (grandma = 0) because the cable still is not being requested; so that, for certain interval of time, in other words, while y < L, the only force agent in the man (therefore, to resultant) is his/her own weight; his/her acceleration is g = constant and his/her speed is that of an object in free fall.

Equacionamento of the first phase

Y < L……. F = P = m.g…… the = g…… v² = 2.g.y…….. (1)

In this phase (1) ….. the = g > 0; v > 0….. as the and v have same sign (the vectors g and v are both vertical ones down, same sense of y), we have a movement evenly accelerated.

When the man’s distance to the bridge, reaches y = L, passed for the second phase: the elastic cable begins being deformed (to stretch out) and raisin to apply a restoring force of the elastic (law of Hooke, f = -k.s) type in the man (f been opposed F). Like this, for y > L the cable will present deformation s = y – L, so that:

Y > L…… f = – k.s = – k. (y – L)…… (2)

The man is represented by the “material point”, (he/she plans black) the gravitational (weight) force for the blue vectors and the elastic (f) force owed to the cable, for the red vectors. For ‘to help’ the presentation, the diagrams are ‘sliding’ for the right, for not happening overlap of vectors. Do notice that, until then, don’t we know where it will happen the maximum deformation (D?).

Equacionamento of the second phase
While y > L, the new resulting force F’ that acts in the man will be:

Y > L………. F’ = P – f = m.g – k. (y – L)…….. (3)

This is a combination of forces that you/they act in opposed senses: a descending force of constant (mg) intensity and an ascending force continually growing, k. (y-L).
Starting from y = L, the force mg continues acting and it stays of constant value, but the contrary elastic force is going increasing of intensity, so that to resultant F’ it is going decreasing of intensity, staying positive until a point B of coordinate yB, where, then, the resulting force is annulled (point of balance of the system; F’ = 0; in the illustration above, blue vector = red vector, / /).
Formally:

y = yB……… 0 = m.g – k. (yB – L)…… yB = L + mg / k….. (4)

For the data of this matter subject it is had:

mg / k = 80.10/160 = 5 m;    yB = 20 + 5 = 25 m.

Note: If the man went going down prisoner slowly to the cable, but being held in a rope, he would be in balance in this point B, distant 25 m of the bridge. It could release the rope, because the cable applies him/her the force equilibrante f = – P.

Once the man goes by the position B (y > yB), his/her descent continues (once he/she still has vertical speed down), but, starting from y = yB, the elastic force becomes every time larger than the weight, so that to resultant he/she starts to have sense appearing upward.

Like this, being applied the Fundamental Beginning of the Dynamics (second law of Newton), it is had:

y > yB….. F’ = mg – k (y-L) = m.a… the = g – (k/m) (y – L)…… (5) (law of acceleration of the movement for y > yB)

With y < L have the = g, the acceleration of the gravity; starting from y = L the acceleration decreases lineally with y because of the action of the cable (it forces restoring of the elastic type that follows the law of Hooke).
When L < y < yB (passage between L and B) the acceleration is positive (to resultant he/she has same sense that the axis; down); when y > yB (passage after B) is negative (resultant has sense contrary to the axis; upward).

Obviously the point B doesn’t characterize the lowest point reached by the man. Observe that while y < yB, the acceleration has the same sign of the speed; like this the man is accelerating. When passing for B the acceleration it changes of sign, but the speed continues positive; this characterizes a retarded movement; the frenamento of the movement begins. In the point B the man has maximum speed!

We know that the acceleration is her derived her of the speed in relation to the time and, as we already learned, a flowed null corresponds to the maximum of the function. Like this, to obtain the maximum value of y we have two roads: (the) to integrate the function acceleration with regard to y to obtain the function of the speed in relation to y — and soon afterwards to annul v (y) to obtain the yD; (b) to work with the definition of acceleration in function of the time and to try to obtain v (y).

Obtaining of the speed
As the answer, I think, to have urgency, I will just present the result of the integration and, to proceed, I will make the complementation, with integral calculation and without using integral calculation; just flowed and consequences.

result of the integration of the function (5):  v² = – (k/m) (y – L) ² + 2.g.y (it repairs well… does one of the portions of that result know?)

Equaling to zero, for y = yD and solving:

- (k/m) (yD – L) ² + 2gy = 0
yD = L + (mg / k) [1 + (1 + 2kL/mg) ½]….. reminding the (4) … yB = L + mg / k….. be:
yD = yB + (yB2 – L2) ½.

For the subject:

yD = 25 + (25² + 20²) ½ = 25 + 225½ = 25 + 15 = 40 m

Complementations
(1) obtaining of the speed quadratic function of y, for integration:

The expression of the acceleration the = g – (k/m) (y – L) it is of the type: THE = THE – B².y, or be,

dv / dt = THE – B².y or, being derived once in relation to the time,

d²v / dt² = – B².v (he/she remembers that dy / dt = v)

This equation differential (typical of MHS), very known, has as solution, the function:

v = grandma.sen (B.t – ß)… (eq.01) or

sen² (B.t – ß) = (v / grandma) ²… (eq.02)

The (eq.01) it can be written: dy / dt = grandma.sen (B.t – ß) that, integrated supplies:

y = (- grandma / B).waistband (B.t – ß) + C or (y – C) ² = (- grandma / B) ².cos² (B.t – ß) or

(y – C) ² = (grandma / B) ².[1 - sen² (B.t - ß)]… (eq.03)

Being taken her/it (eq02) in the (eq.03), it is had:

(y – C) ² = (grandma / B) ².[1 - (v / grandma) ²] or

(y – C) ² / (grandma / B) ² = 1 – (v / grandma) ² or

(v / grandma) ² = 1 – (B / grandma) ².(Y – C) ²

Finally:

v² = vo² – B².(y – C) ² or, with our notations v² = 2.g.y – (k/m) (y – L) ²

To confirm, we will derive that function in relation to the time:2.v.dv / dt = 2.B².(C – Y).dy / dt = 2.B².(C – Y).v or
THE = B².C – B².y, that is the original form of the acceleration, with THE = B².C.

(2) obtaining of the speed quadratic function of y, for derivations and differential:

Of Newton’s second law it resulted:  the = g – (k/m) (y – L)

the = dv / dt… (introducing a change of variables, it comes:)

the = (dv / dy).(dy / dt)… (reminding that: v = dy / dt, is had:)

the = v dv / dy = ½.D (v²) / dy… (then:)

dv² / dy = 2.a = 2g – 2 (k/m) (y – L) or

Dv2/dy = 2g – 2 (k/m) (y – L) = d [2gy - (k/m) (y - L) 2] / dy… (and, finally:)

v2 = 2gy – (k/m) (y – L) 2

Solution of the subject for the method of the energies

Let us indicate for d the experienced deformation for the cable from the position L to the position it exalts where it happens the inversion of the movement. The jumper’s maximum removal, in relation to the bridge, will be: D = L + D.

The jumper’s gravitational potential energy set out from the bridge to this extreme position, he/she turns into elastic potential energy of the cable; we wrote:

m.g. (L+d) = (1/2).k.d²2.m.g.L + 2.m.g.d – k.d² = 0…. dividing m.the.m. for k, and making 2mg/k = u is,

u.L + u.d – d² = 0 (quadratic equation)

d’, d” = [- u ± square (u² +4uL)] / (-2) … formula of Baskara; square = square root.

With the data of the subject, it is had: u = 2mg/k = 2.80.10/160 = 10 and L = 20.

The numeric roots, of the equation, are: d’ = 20 and d” = – 10

Reinforcing: d is the maximum deformation of the cable; increasing L (length of the cable) the jumper’s maximum distance is had to the bridge: D = L+d.

With the data of the subject, a solution is D’ = 20+20 = 40 m and the other is D” = -10+20 = 10 m.

The second solution can be spared because the cable doesn’t apply force in the jumper for y < 20 m.

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By James, January 21, 2010 6:54 pm

Going to infant and junior school is all about learning, but not just learning numeracy and literacy. Until children learn how to behave appropriately in a classroom then their academic learning is often secondary and unfortunately if a child is disruptive then they can prevent other children from learning.

Encouraging good behaviour in the classroom is an essential part of a child’s education, just like learning other social skills.  This behaviour cannot be learned at home as “classroom behaviour” is, in many ways totally different from “home behaviour” so it needs to be taught and learned in school. Many teachers become very frustrated because their efforts to teach children the National Curriculum are undermined by the difficulty of maintaining discipline in circumstances which are far from ideal. However, there are things which can be done to improve matters and these small incremental measures can have “knock on” effects. That is not to say that teaching is ever, ever easy.

All children respond well to positive reinforcement, in fact they respond better to positive reinforcement than negative.  So giving praise and encouragement for behaving in the right way is more likely to get them to behave well than telling them off when they behave badly.  However, they also tend to forget pretty quickly as well, especially in reception classes, so you need something more long lasting than a word of praise.

Here at Brainwaves we produce all kinds of certificates, badges and stickers to help motivate children to achieve and to continue achieving. Amongst our ranges you will find a fabulous set of stickers to reward good behaviour.  The beauty of stickers is that they are seen, and commented on, by other people in school and the child will still be wearing them at home time, so their parents will also encourage their good behaviour in the classroom.

The Article is written by brainwaves.net providing School Stickers and Custom Stickers Services. Visit http://www.brainwaves.net for more information on brainwaves.net Products & Services_ Copyright information This article is free for reproduction but must be reproduced in its entirety, including live links & this copyright statement must be included. Visit brainwaves.net for more services!

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By Onslow, January 19, 2010 2:18 pm

The operating system which helps the elements of your personal computer interact, but it can’t perform practical tasks such as letter writing and calculating your bills. For these jobs you need to use additional software called applications or programs which is designed to carry out specific tasks. Here are a few computer programs that will improve your skills:

- Microsoft Word. A powerful word processor that’s able to produce written documents of all kinds, including letters, memos, newsletters and posters. You can create documents from scratch yourself or, for many types of document, you can use one of the program’s Wizards or templates. The Wizards let you choose the content and how the document looks, while the templates have a preset layout.

- Excel. A spreadsheet program used for organizing and calculating numerical data. It is ideal for keeping track of all types of budgets and accounts. Like all spreadsheets, it takes the form of a grid containing cells into which you input figures and formulas to calculate the figures. Excel allows you to have several spreadsheets or worksheets within the same document, and to enter calculations using figures from each of the worksheets. This is particularly useful when organizing a major event that includes mini-projects.

- Outlook. A desktop information management program that contains an address book into which you can enter contact details for friends, family and business associates. Also has a diary and calendar that will help you to keep track of your current schedule and appointments. Outlook can also be used to send and receive email through the internet or through an internal company network.

- Powerpoint. This is most often used in business. It enables you to create presentations for conferences, company meetings and marketing projects. It helps your business to structure information efficiently and do graphics within your text. It even offers animation effects to maximize the impact of your presentations. You can also use powerpoint at home to make a computerized slide show for your friends and family.

It’s always a good ideal to learn different computer programs because knowing what each program, especially in your bundled software package can do will help you decide which will be the most appropriate for the tasks you want to perform.

Fortunately, many people these days have discovered that the best way to learn new skills fast, is through the use of Video Lessons (whenever possible). By using new and improved Video Lessons, you will be able to Master Basic Computer Skills fast. You’ll be able to see every step necessary to perform every task you need on your computer.  You will drastically improve your learning ability by a hundred folds, if you use video tutorials to learn new skills, compared to someone who still insist on learning new skills from books only (the old fashion way). So many people who have already try learning new skills or learning Basic Computer Skills fast from books only, always end up not acquiring basic Computer Knowledge fast. This is because, the more you read, the more confused you’ll become, as you try to understand so many things and terms at the same time. So many things or terms that you probably never heard of before.

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