Over a relatively short period of time, usually about four to twelve weeks, the worker must be able to shift the focus, back and forth, between immediate external stressful exigencies ( `` precipitating stress '' ) and the key, emotionally relevant issues ( `` underlying problem '' ) which are, often in a dramatic preconscious breakthrough, reactivated by the crisis situation, and hence once again amenable to resolution.

I submit that this is the key problem of international relations, that it always has been, that it always will be.

A key problem in the design of good algorithms for this problem is that formulas for the variance may involve sums of squares, which can lead to numerical instability as well as to arithmetic overflow when dealing with large values.

Symmetric-key ciphers are suitable for bulk encryption using shared keys, and public-key encryption using digital certificates can provide a practical solution for the problem of securely communicating when no key is shared in advance.

A key distinction between analysis of algorithms and computational complexity theory is that the former is devoted to analyzing the amount of resources needed by a particular algorithm to solve a problem, whereas the latter asks a more general question about all possible algorithms that could be used to solve the same problem.

" Here again, the problem of induction plays a key role in arguments.

This effort is supported by the Top Gun Program enabling HP Enterprise Services technical personnel to dedicate 3 months of their time on joint projects with the Agility Alliance partner on a key technology problem, to create an innovative customer solution.

If the open string is in tune, but sharp or flat when frets are pressed, the bridge saddle position can be adjusted with a screwdriver or hex key to remedy the problem.

He was co-editor ( with Marshall Swain ) of Essays on Knowledge and Justification ( 1978 ), regarded as a key anthology of essays relating to the Gettier problem and used as a core text in undergraduate epistemology courses.

The government faced the problem that a key piece of evidence – Lindh's confession – might be excluded from evidence as having been forced under duress ( i. e. torture ).

This inability to distinguish distributions with a comb-like shape from continuous distributions is a key problem with all statistics based on a variant of the K-S test.

John Harrison, a self-educated English clockmaker then invented the marine chronometer, a key piece in solving the problem of accurately establishing longitude at sea, thus revolutionising and extending the possibility of safe long distance sea travel.

The inability to pin an idea or cultural feature to quantifiable key units is widely acknowledged as a problem for memetics.

The problem with this system, is that it provides only a crude binary on / off signal for each key.

The problem of correctly identifying a public key as belonging to a particular user is not unique to PGP.

All public key / private key cryptosystems have the same problem, if in slightly different guise, and no fully satisfactory solution is known.

The Diffie – Hellman key exchange relies on the fact that there are efficient algorithms for modular exponentiation, while the reverse operation the discrete logarithm is thought to be a hard problem.

A central problem with the use of public-key cryptography is confidence ( ideally, proof ) that a particular public key is correct, and belongs to the person or entity claimed ( i. e. is " authentic "), and has not been tampered with, or replaced by, a malicious third party ( a " man-in-the-middle ").

The usual approach to this problem is to use a public-key infrastructure ( PKI ), in which one or more third parties-known as certificate authorities-certify ownership of key pairs.

To date, no fully satisfactory solution to this " public key authentication problem " has been found.

However, revoking a key now requires both Alice and Bob to be available, and this creates a problem of reliability.

I have just asked these questions in the Pentagon, in the White House, in offices of key scientists across the country and aboard the submarines that prowl for months underwater, with neat rows of green launch tubes which contain Polaris missiles and which are affectionately known as `` Sherwood Forest ''.

Alternate locations exist for all key command centers.

It could reach key tactical points faster than infantry and destroy them or hold them as the case might be for the foot soldier.

When he was bent over behind the wheel of the station wagon, feeling in his trouser cuffs for the ignition key which he had dropped a moment before, she came out of the house with an enormous Rumanian shawl over her head, which she had bought in that country during one of their trips abroad, and handed him a clean handkerchief through the window.

The long-range objective is to bring about consolidation of ownership through use of land exchange authority and through purchase on a moderate scale of inholdings which comprise key tracts for recognized National Forest programs such as recreation development, or which are a source of damage to lands in National Forests and National Grasslands.

Some manufacturers have had the foresight to provide a socket for the chuck key ; ;

Called a `` Slo-Flo '' meter it was designed for this job by Power Plus Industries of Los Angeles, a key individual being Don Nelson.

Pulley had set her up at the Semiramis Hotel, but she grew impatient waiting for a royal reception and moved to a luxurious apartment to which the royal pimp had no key.

He found the key to the Jeep, got it started and warmed it up for five minutes.

Apparently he believes Mr. Buckley holds the key to the Democratic organization's acceptance of his choices for running mates without a struggle.

Now a quiet-spoken, middle-aged man, Fiedler is an aeronautical engineer for Lockheed's Missiles and Space Division at Sunnyvale, where he played a key role in the development of the Navy's Polaris missile.

A $25 billion advertising budget in an $800 billion economy was envisioned for the 1970s here Tuesday by Peter G. Peterson, head of one of the world's greatest camera firms, in a key address before the American Marketing Assn..

Nevertheless, the weak government created by the Articles became a matter of concern for key nationalists.

In The Plague, a key description of Oran occurs early, when it is explained that the town is built in such a way that it " turns its back on the bay, with the result that it's impossible to see the sea, you always have to go to look for it.

Like Jehovah's Witnesses, Adventists use key phrases from the Bible, such as " For the living know that they shall die: but the dead know not any thing, neither have they any more a reward ; for the memory of them is forgotten " ( Eccl.

The atomic orbital concept is therefore a key concept for visualizing the excitation process associated with a given transition.

The algorithm described by AES is a symmetric-key algorithm, meaning the same key is used for both encrypting and decrypting the data.

The key size used for an AES cipher specifies the number of repetitions of transformation rounds that convert the input, called the plaintext, into the final output, called the ciphertext.

During this operation, each column is multiplied by the known matrix that for the 128 bit key is

For cryptographers, a cryptographic " break " is anything faster than a brute force — performing one trial decryption for each key ( see Cryptanalysis ).

Symbolism as an art movement was in full swing at this time and L ' Ymagier provided a nexus for many of its key contributors.

The early 1960s and 1970s ( up until his death in 1976 ) were marked by key works in Helsinki, in particular the huge town plan for the void in centre of Helsinki adjacent to Töölö Bay and the vast railway yards, and marked on the edges by significant buildings such as the National Museum and the main railway station, both by Eliel Saarinen.

This key result opened the way for a proof of the Weil conjectures, ultimately completed by his student Pierre Deligne.