Purkinje cell loss in essential tremor: Random sampling quantification and nearest neighbor analysis
نویسندگان
چکیده
منابع مشابه
Evaluation Accuracy of Nearest Neighbor Sampling Method in Zagross Forests
Collection of appropriate qualitative and quantitative data is necessary for proper management and planning. Used the suitable inventory methods is necessary and accuracy of sampling methods dependent the inventory net and number of sample point. Nearest neighbor sampling method is a one of distance methods and calculated by three equations (Byth and Riple, 1980; Cotam and Curtis, 1956 and Cota...
متن کاملEvaluation Accuracy of Nearest Neighbor Sampling Method in Zagross Forests
Collection of appropriate qualitative and quantitative data is necessary for proper management and planning. Used the suitable inventory methods is necessary and accuracy of sampling methods dependent the inventory net and number of sample point. Nearest neighbor sampling method is a one of distance methods and calculated by three equations (Byth and Riple, 1980; Cotam and Curtis, 1956 and Cota...
متن کاملReduced Purkinje cell number in essential tremor: a postmortem study.
BACKGROUND Clinical and functional imaging evidence suggests that cerebellar dysfunction occurs in essential tremor (ET). In recent postmortem studies, we documented increased numbers of torpedoes (Purkinje cell axonal swellings) in ET patients without Lewy bodies. Purkinje cell loss, however, has never been rigorously assessed. OBJECTIVE To quantitatively assess the number of Purkinje cells ...
متن کاملStructural study of Purkinje cell axonal torpedoes in essential tremor.
Essential tremor (ET) is one of the most common neurological diseases. A basic understanding of its neuropathology is now emerging. Aside from Purkinje cell loss, a prominent finding is an abundance of torpedoes (rounded swellings of Purkinje cell axons). Such swellings often result from the mis-accumulation of cell constituents. Identifying the basic nature of these accumulations is an importa...
متن کاملkth Nearest Neighbor Sampling in the Plane
Let B be a square region in the plane. We give an efficient algorithm that takes a set P of n points from B, and produces a set M ⊂ B with the property that the distance to the second nearest point in M approximates the distance to the kth nearest point of P . That is, there are constants α, β ∈ R such that for all x ∈ B, we have αdP,k(x) ≤ dM,2(x) ≤ βdP,k(x), where dM,2 and dP,k denote the sec...
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ژورنال
عنوان ژورنال: Movement Disorders
سال: 2016
ISSN: 0885-3185
DOI: 10.1002/mds.26490