At first they were restricted to inner-city areas where existing schools had failed.
And this is where existing enterprise resource planning (ERP) and mobile technologies can come together to change the status quo, and do so quite radically.
FORBES: Creating Entrepreneurs at the Bottom of the Economic Pyramid
The only exceptions are Wembley Stadium, St James' Park, Old Trafford and North Greenwich Arena, where existing licensing agreements mean all spectators need a ticket, regardless of their age.
BBC: London 2012: Olympic ticket priority sales dates revealed
The company's flagship device, VIVOplay, is the smallest commercially available mobile communications and location device designed to help families keep in touch in situations where existing location and communications technology fail.
ENGADGET: VivoPlay packs WiFi, GPS and a GSM connection for tracking, calling your kids (video)
On Friday, the U.S. Justice Department accused Meridian police of automatically arresting all students referred by the city's public schools and then sending them to the county juvenile justice system, "where existing due process protections are illusory and inadequate, " the federal letter says.
So does Apple see a bigger project here, one where the existing TV manufacturers will, anyway, provide their own web and mobile connectivity, one where it is just too difficult to compete with the market?
For example, repeat borrowers in August on average had new debt pricing roughly 35 bps higher than where comparable existing paper was trading pre-announcement, compared to average premiums of 43 bps and 50 bps for deals priced in the first and second quarters, respectively, according to LCD.
Sales of other beverages like beer, where there are existing restrictions, could now come under pressure to be sold more freely.
It calls on federal agencies to develop voluntary cybersecurity standards for critical parts of the private sector and to consider proposing new mandates where possible under existing law.
FORBES: Kaspersky Lab CEO: Obama Cybersecurity Order 'Step In Right Direction'
Moreover, in the few areas of America where one cable company has built over a rival's existing system, where a telephone company has set up an experimental system to deliver television signals, or where there is an old, municipally owned cable system as well as a private one, competition has led to lower prices (see chart).
These are the so-called line extensions where companies simply tweak existing drugs enough to earn a new patent.
WSJ: Should Patents on Pharmaceuticals Be Extended to Encourage Innovation?
It will be installed only in areas where there is an existing demand.
FORBES: Bring On The Broadband With Private/Public Partnerships
Pending home sales represent pending sales of existing homes where a contract has been signed but the transaction has officially not been closed yet.
He said the energy supply business in the Irish Republic would fit well with its existing operations where it currently services some major industrial users.
For example, an operation where Serco and the existing state-run London Probation Trust jointly provide Community Payback services for the MoJ took around two years to procure.
But he says the Gulf Coast region, where there are few existing CO2 pipelines, has enough old oilfields to generate at least 250, 000 tons a day of all-new demand.
Pending home sales, which represent sales of existing homes where contracts have been signed but the transaction has yet to be completed, are often viewed as a leading indicator of the housing sector.
And while insurance companies will be prevented from denying coverage on the basis of pre-existing conditions once the exchange is open, in the meantime there will be a high risk pool where people with pre-existing conditions can purchase affordable coverage.
Ideally, they will lay out a comprehensive list of measures going beyond tariffs and export subsidies to include, for example, domestic subsidies and discriminatory procurement provisions in stimulus packages and commit to not use them even where permitted by their existing international trade commitments.
Criminal lawyers are looking at the rights of suspects in police custody to legal advice, the use of closed-circuit cameras, the seizure of criminal assets and police entrapment procedures, to name but a few areas where they think that existing practice may conflict with the convention.
Administrators said factory outlet stores would remain open and the company would attempt to fulfil existing customer orders where possible.
BBC: Axminster Carpets: 300 jobs to be cut by administrators
We also looked for places where the median price of existing single-family homes is at or under the current national average.
Yet in tsunami-hit Sri Lanka, where there was a large existing microcredit network, it has played a big if controversial role.
Another has shown a way of flushing the virus out of one of the tissues where it hides from the existing drugs.
Buyers are also having an easier time taking out government loans to purchase existing homes, where they can typically get more bang for their buck.
Think of past examples where you have taken an existing product or process and used your unique set of skills and expertise to improve results.
Land agents for the utility firm have been exploring a site in Wookey, and have also looked at Cheddar, where the company has an existing reservoir.
The preferred route of phase two will take high-speed trains to the Church Fenton area, where they can connect with existing lines and run into York.
One major key to safety, regardless of whether one cares to use these products, to be in a monogamous sexual relationship where neither partner has an existing sexually-transmitted infection.
So it may be wiser to wait for the relief wells that are being drilled to get down to the point, 4, 000 metres below the sea bed, where they will intersect the existing well.
应用推荐