For a function $g\colon\{0,1\}^m\to\{0,1\}$, a function $f\colon \{0,1\}^n\to\{0,1\}$ is called a $g$-polymorphism if their actions commute: $f(g(\mathsf{row}_1(Z)),\ldots,g(\mathsf{row}_n(Z))) = g(f(\mathsf{col}_1(Z)),\ldots,f(\mathsf{col}_m(Z)))$ for all $Z\in\{0,1\}^{n\times m}$.
Chase, Gilad +4 more
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PolyMorph: A P300 Polymorphic Speller [PDF]
P300 is an electric signal emitted by brain about 300 milliseconds after a rare, but relevant-for-the-user event. Even if it is hard to identify and it provides a low-rate communication channel, it can be used in cases in which other evoked potentials fail.
CASAGRANDE, ALBERTO +4 more
openaire +3 more sources
Angiotensin-converting enzyme insertion/deletion polymorphism does not influence the restenosis rate after coronary stent implantation [PDF]
Background. Experimental studies have shown an activation of the angiotensin-converting enzyme (ACE) system as a response to endothelial injury. Recent publications have elucidated the hypothesis that the ACE gene polymorphism may influence the level of ...
Hausmann, Dirk +10 more
core +1 more source
Allelic drop-out may occur with a primer binding site polymorphism for the commonly used RFLP assay for the -1131T>C polymorphism of the Apolipoprotein AV gene. [PDF]
Apolipoprotein AV (ApoAV) gene variant, -1131T>C, is associated with increased triglyceride concentrations in all ethnic groups studied. An MseI based RFLP analysis is the most commonly used method for genotyping this SNP.
Andrew T Hattersley +20 more
core +1 more source
Impact of mating systems on patterns of sequence polymorphism in flowering plants [PDF]
A fundamental challenge in population genetics and molecular evolution is to understand the forces shaping the patterns of genetic diversity within and among species.
Deborah Charlesworth +5 more
core +1 more source
Response to combination therapy with interferon alfa-2a and ribavirin in chronic hepatitis C according to a TNF-alpha promoter polymorphism [PDF]
Background. Tumor necrosis factor-alpha (TNF-alpha) is involved in the pathogenesis of chronic active hepatitis C. Polymorphisms in the promoter region of the TNF-alpha gene can alter the TNF-alpha expression and modify the host immune response.
Konig, A. +8 more
core +1 more source
Association of FcγRIIa R131H polymorphism with idiopathic pulmonary fibrosis severity and progression [PDF]
Background A significant genetic component has been described for idiopathic pulmonary fibrosis (IPF). The R131H (rs1801274) polymorphism of the IgG receptor FcγRIIa determines receptor affinity for IgG subclasses and is associated with several chronic ...
Hart Simon P +31 more
core +1 more source
Angiotensin-converting enzyme I/D polymorphism and preeclampsia risk: Evidence of small-study bias [PDF]
Background Inappropriate activation of the renin-angiotensin system may play a part in the development of preeclampsia. An insertion/deletion polymorphism within the angiotensin-I converting enzyme gene (ACE-I/D) has shown to be reliably associated with ...
Casas Juan P +39 more
core +1 more source
Impulsive traits and 5-HT2A receptor promoter polymorphism in alcohol dependents: Possible association but no influence of personality disorders [PDF]
Objective: Impulsive behavior in alcoholics puts them at serious risk of severer course of disease and has been related to the serotonergic neurotransmission dysfunction.
Bondy, Brigitta +4 more
core +1 more source
(Figure Presented) At long last, the crystal structure of the metastable form of benzamide, whose existence has been known of for over 170 years, has finally been solved by using a combination of in situ crystallization, high-speed synchrotron X-ray powder diffraction, and global-optimization methods of structure determination (see picture).
W. I. F. David +5 more
openaire +4 more sources

