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Page "Diffraction" ¶ 8
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If and obstructing
If either batsman is out ' obstructing the field ', any runs completed before the offence, together with any penalty extras and the penalty for a No ball or Wide are still scored, except when the offence stopped a catch being caught when only penalties are still scored.
If severe it can lead to difficulties in breathing, obstructing the trachea and requiring a tracheotomy.

If and object
If a litigant chooses to enforce a Federal right in a State court, he cannot be heard to object if he is treated exactly as are plaintiffs who press like claims arising under State law with regard to the form in which the claim must be stated -- the particularity, for instance, with which a cause of action must be described.
If, at any time during the assignment pass, the compiler finds that there are no more index words available for assignment, the warning message `` No More Index Words Available '' will be placed in the object program listing, the table will be altered to show that index words 1 through 96 are available, and the assignment will continue as before.
If the compiler finds that there are no more electronic switches available for assignment, the warning message `` No More Electronic Switches Available '' will be placed in the object program listing, the table will be altered to show that electronic switches 1 through 30 are available, and assignment will continue as before.
If the automorphisms of an object X form a set ( instead of a proper class ), then they form a group under composition of morphisms.
If this article / noun pair is used as the object of a verb, it ( usually ) changes to the accusative case, which entails an article shift in German – Ich sehe den Wagen.
If the object point be infinitely distant, all rays received by the first member of the system are parallel, and their intersections, after traversing the system, vary according to their perpendicular height of incidence, i. e. their distance from the axis.
If the object point O is infinitely distant, u1 and u2 are to be replaced by h1 and h2, the perpendicular heights of incidence ; the sine condition then becomes sin u ' 1 / h1 = sin u ' 2 / h2.
If, in an unsharp image, a patch of light corresponds to an object point, the center of gravity of the patch may be regarded as the image point, this being the point where the plane receiving the image, e. g., a focusing screen, intersects the ray passing through the middle of the stop.
If we look at this situation from far above, so that we cannot see the supporters, we see the large balloon as a small object animated by erratic movement.
If there be any party which is more pledged than another to resist a policy of restrictive legislation, having for its object social coercion, that party is the Liberal party.
If F and G are ( covariant ) functors between the categories C and D, then a natural transformation η from F to G associates to every object X in C a morphism in D such that for every morphism in C, we have ; this means that the following diagram is commutative:
If a pixel-by-pixel ( image order ) approach to rendering is impractical or too slow for some task, then a primitive-by-primitive ( object order ) approach to rendering may prove useful.
If a rotating frame is chosen so that just the angular position of an object is held fixed, more complicated motion, such as elliptical and open orbits, appears because the centripetal and centrifugal forces will not balance.
If there is a direct object, the indirect object can be expressed by an object pronoun placed between the verb and the direct object.
If the average density ( including any air below the waterline ) of an object is less than water it will float in water and if it is more than water's it will sink in water.
If a particular object did not support a, it could be easily added in the module.
Frege, however, did not conceive of objects as forming parts of senses: If a proper name denotes a non-existent object, it does not have a reference, hence concepts with no objects have no truth value in arguments.
If the occulting object has an atmosphere, however, some of the luminosity of the star can be refracted into the volume of the umbra.
If a physical object statement is to be translatable into a sense-data statement, the former must be at least deducible from the latter.
Likewise, a functor from G to the category of vector spaces, Vect < sub > K </ sub >, is a linear representation of G. In general, a functor G → C can be considered as an " action " of G on an object in the category C. If C is a group, then this action is a group homomorphism.
If a laser is swept across a distant object, the spot of laser light can easily be made to move across the object at a speed greater than c. Similarly, a shadow projected onto a distant object can be made to move across the object faster than c. In neither case does the light travel from the source to the object faster than c, nor does any information travel faster than light.

If and provides
If the DBMS provides a way to interactively enter and update the database, as well as interrogate it, this capability allows for managing personal databases.
Furthermore, the Mohist philosophical canon of the Mojing, compiled by the followers of Mozi ( c. 470-c. 390 BC ), provides the earliest known attempt to describe inertia: " The cessation of motion is due to the opposing force ... If there is no opposing force ... the motion will never stop.
If a pathogen breaches these barriers, the innate immune system provides an immediate, but non-specific response.
# If not, it provides a descriptive label for the format of content, with respect to the presence of 8 bit or binary content.
If the hardware provides multiple rings or CPU modes, the microkernel is the only software executing at the most privileged level ( generally referred to as supervisor or kernel mode ).
If the fully qualified domain name of any name server for a zone appears within that zone, the zone administrator provides IP addresses for that name server, which are installed in the parent zone as glue records ; otherwise, the delegation consists of the list of NS records for that zone.
If a mapping is available, presentation service data units are encapsulated into session protocol data units, and passed down the stack. This layer provides independence from data representation ( e. g., encryption ) by translating between application and network formats.
If the oscillator operates above the audio frequency range (> 20 kHz ), the generator will often include some sort of modulation function such as amplitude modulation ( AM ), frequency modulation ( FM ), or phase modulation ( PM ) as well as a second oscillator that provides an audio frequency modulation waveform.
If the regulator becomes blocked, a safety valve provides a backup escape route for steam.
If the lender is FHA approved and the mortgage is within FHA limits, the FHA provides mortgage insurance that may be more affordable, especially for higher risk borrowers.
A new therapeutic class, called If inhibitor, has recently been made available: ivabradine provides pure heart rate reduction leading to major anti-ischemic and antianginal efficacy.
If modeled on the practice of using dictionaries, there would be no circle in an illustration of the activity of looking up a word whose entry provides a definition in terms of that word ( or in terms of another word defined in terms of this word ).
If stress relaxation is slow and cracking is a problem, a slower operational speed provides more time for stress relaxation.
He goes on to quote Webster further, " If the Northern States refuse, willfully and deliberately, to carry into effect that part of the Constitution which respects the restoration of fugitive slaves, and Congress provides no remedy, the South would no longer be bound to observe the compact.
If the implementation language is changed, the command name extension is changed as well, and the OS provides a consistent API by allowing the same extension-less version of the command to be used in both cases.
Should the king ever choose to exercise this privilege, Article 79 provides a means by which his veto may be overridden: " If a Bill has been passed unaltered by two sessions of the Storting, constituted after two separate successive elections and separated from each other by at least two intervening sessions of the Storting, without a divergent Bill having been passed by any Storting in the period between the first and last adoption, and it is then submitted to the King with a petition that His Majesty shall not refuse his assent to a Bill which, after the most mature deliberation, the Storting considers to be beneficial, it shall become law even if the Royal Assent is not accorded before the Storting goes into recess.
If neither player gives a valid answer, the next member of each family provides an answer, with control again going to the family giving the more popular answer.
If the suicidal person is not acting out of his own free will, then assistance is punishable by any of a number of homicide offences that the criminal code provides for, as having " acted through another person " (§ 25, section 1 of the German criminal code, usually called " mittelbare Täterschaft ").
Should the king ever choose to exercise this privilege, Article 79 provides a means by which his veto may be overridden: " If a Bill has been passed unaltered by two sessions of the Storting, constituted after two separate successive elections and separated from each other by at least two intervening sessions of the Storting, without a divergent Bill having been passed by any Storting in the period between the first and last adoption, and it is then submitted to the King with a petition that His Majesty shall not refuse his assent to a Bill which, after the most mature deliberation, the Storting considers to be beneficial, it shall become law even if the Royal Assent is not accorded before the Storting goes into recess.
If it can be produced for $ 225, there is a $ 75 gain on its production since it provides services that the community values at $ 300 at a cost of only $ 225.
If recanalization proceeds it provides capillary-sized channels through the thrombus for continuity of blood flow through the entire thrombus but may not restore sufficient blood flow for the metabolic needs of the downstream tissue.
If a bee knows the direction to a feeding place found during a morning excursion, it can also find the same location, as well as the precise time at which this source provides food, in the afternoon, based on the position of the sun.
If the threshold element is a neon lamp, the circuit also provides a flash of light with each discharge of the capacitor.
If the data do not contradict the null hypothesis, then only a weak conclusion can be made ; namely that the observed data set provides no strong evidence against the null hypothesis.

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