منابع مشابه
Homogenous rivers, homogenous faunas.
H abitat change and invasions of alien species are usually listed as the two biggest causes of biodiversity loss. When the two coincide, the results can be devastating, because altered habitat often favors alien species adapted to the changed conditions. This is particularly true in streams and rivers of North America, where homogenization of fish faunas through extinction of native species and...
متن کاملBoolean function is constant or not ∗
We study the probability of making an error if, by querying an oracle a fixed number of times, we declare constant a randomly chosen n-bit Boolean function. We compare the classical and the quantum case, and we determine for how many oracle-queries k and for how many bits n one querying procedure is more efficient than the other.
متن کاملIron Accumulation Is Not Homogenous among Patients with Parkinson's Disease
Background. Iron is considered to lead to neurodegeneration and has been hypothesized as a possible cause of Parkinson's disease (PD). Susceptibility-weighted imaging (SWI) is a powerful tool to measure phase related iron content of brain. Methods. Twelve de novo patients with PD were recruited from the Movement Disorders Clinic, Department of Neurology, Loma Linda University. Twelve age- and s...
متن کاملLiver Resection: To Drain or not to Drain?
Purpose: A prospective, randomized trial was performed to determine if intra-abdominal drainage catheters are necessary after elective liver resection.
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ژورنال
عنوان ژورنال: HPB
سال: 2016
ISSN: 1365-182X
DOI: 10.1016/j.hpb.2016.07.017