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Proportional Derivative (PD) Control On The Euclidean Group
 In European Control Conference
, 1995
"... . In this paper we study the stabilization problem for control systems defined on SE(3) (the special Euclidean group of rigidbody motions) and its subgroups. Assuming one actuator is available for each degree of freedom, we exploit geometric properties of Lie groups (and corresponding Lie algebras) ..."
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Cited by 30 (3 self)
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) to generalize the classical proportional derivative (PD) control in a coordinatefree way. For the SO(3) case, the compactness of the group gives rise to a natural metric structure and to a natural choice of preferred control direction: an optimal (in the sense of geodesic) solution is given to the attitude
Parkinson’s Disease Is Related to an Increased Risk of Ischemic Stroke—A PopulationBased Propensity Score Matched FollowUp Study
"... Objective: The risk of stroke in patients with Parkinson’s disease (PD) remains controversial. The purpose of this populationbased propensity scorematched longitudinal followup study was to determine whether there is an increased risk of ischemic stroke after PD. Methods: We used a logistic regre ..."
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regression model that includes age, sex, preexisting comorbidities and socioeconomic status as covariates to compute the propensity score. A total of 2204 patients with at least two ambulatory visits with the principal diagnosis of PD in 2001 was enrolled in the PD group. The non PD group consisted of 2204
INDECOMPOSABLE PD3COMPLEXES
"... We show that if X is an indecomposable PD3complex and π1(X) is the fundamental group of a reduced finite graph of finite groups but is neither Z nor Z ⊕ Z/2Z then X is orientable, the underlying graph is a tree, the vertex groups have cohomological period dividing 4 and all but at most one of the e ..."
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Cited by 3 (1 self)
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We show that if X is an indecomposable PD3complex and π1(X) is the fundamental group of a reduced finite graph of finite groups but is neither Z nor Z ⊕ Z/2Z then X is orientable, the underlying graph is a tree, the vertex groups have cohomological period dividing 4 and all but at most one
Increased H/Pd (D/Pd) Loading
"... • A strong correlation has been found between surface impurities and H/Pd (D/Pd) loading. Impurities that promote increased loadings are referred to as “promoter ” impurities. • Therefore, it is important to understand the effects of these impurities since it is believed there is a higher probabilit ..."
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• A strong correlation has been found between surface impurities and H/Pd (D/Pd) loading. Impurities that promote increased loadings are referred to as “promoter ” impurities. • Therefore, it is important to understand the effects of these impurities since it is believed there is a higher
Antiblocking systems and PDsets
"... In 1964 F.J.Mac Williams introduced the technique of permutation decoding which uses a subset of the automorphism group of the code, a socalled PDset. A PDset for a terrorcorrecting code C is a set S of automorphisms of the code which is such that, every possible error vector of weight t or les ..."
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In 1964 F.J.Mac Williams introduced the technique of permutation decoding which uses a subset of the automorphism group of the code, a socalled PDset. A PDset for a terrorcorrecting code C is a set S of automorphisms of the code which is such that, every possible error vector of weight
Objective: To assess performance on two nondeclarative (implicit)
"... memory tasks of Parkinson disease (PD) patients without dementia in the earlier or later stages of the disease (Hoehn and Yahr Scale scores of 1–2.5 or 3–4, respectively). Background: Different subtypes of nondeclarative memory appear to depend on different components of frontostriatal circuitry. Pe ..."
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: On the PCL, the learning of the control (age and educationmatched) group (n = 19) and the early PD group (n = 16) was comparable with each other, and both groups showed better performance than the later PD group (n = 16). On the IGT, the control group learned better than both of the PD groups. The control
Language deficits in dyslexic children: speech perception, phonology and morphology
 J. Exp. Child Psychol
, 2000
"... We investigated the relationship between dyslexia and three aspects of language: speech perception, phonology, and morphology. Reading and language tasks were administered to dyslexics aged 8–9 years and to two normal reader groups (agematched and readinglevel matched). Three dyslexic groups were ..."
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Cited by 55 (8 self)
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identified: phonological dyslexics (PD), developmentally language impaired (LI), and globally delayed (delaytype dyslexics). The LI and PD groups exhibited similar patterns of reading impairment, attributed to low phonological skills. However, only the LI group showed clear speech perception deficits
Architectural Patterns for Enabling Application Security
, 1998
"... Making an application secure is much harder than just adding a password protected login screen. This paper contains a collection of patterns to be used when dealing with application security. Secure Access Layer provides an interface for applications to use the security of the systems on which they ..."
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Cited by 127 (0 self)
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they are built. Single Access Point limits entry into the application through one single point. Check Point gives the developer a way to handle an unknown or changing security policy. Groups of users have different Roles that define what they can and cannot do. The global information about the user
Results 1  10
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