منابع مشابه
Counterexamples to witness conjectures
Consider the class of exp-log constants, which is constructed from the integers using the field operations, exponentiation and logarithm. Let z be such an exp-log constant and let n be its size as an expression. Witness conjectures attempt to give bounds $(n) for the number of decimal digits which need to be evaluated in order to test whether z equals zero. For this purpose, it is convenient to...
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Heterotopic gestations occurring in spontaneous conception cycles are rare. An incidence of in has been documented. However there is a rising rate mostly attributed to ovulation induction and assisted reproduction techniques where it occurs in to of all clinical pregnancies. A high index of suspicion and use of ancillary investigations will aid diagnosis. The management of this condition in a J...
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Before expert witnesses may testify in court, it is necessary that they be qualified to render an expert opinion. The qualification process has three steps: first, the expert’s training, education, experience, and other indices of qualification are elicited on direct examination by the retaining attorney. Second, a proffer is made to the court of the witness as an expert; the proffer may be cha...
متن کاملRecalling a Witness
type ref t = id:N{witnessed (has_a_t id t)} let has (id:N) (H h _) = match h id with Used _ _ (Untyped _)→⊤ | _→⊥ abstract type uref = id:N{witnessed (has id)}type uref = id:N{witnessed (has id)} To enforce these invariants on state-manipulating operations, we define a preorder rel on heap, that constrains the heap evolution. It states that every Used identifier remains Used; every Typed refere...
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ژورنال
عنوان ژورنال: Canadian Medical Association Journal
سال: 2005
ISSN: 0820-3946,1488-2329
DOI: 10.1503/cmaj.051054