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1,047 results on '"Jupiter, Daniel"'

1. Traumatic brain injury alters the effects of class II invariant peptide (CLIP) antagonism on chronic meningeal CLIP + B cells, neuropathology, and neurobehavioral impairment in 5xFAD mice

Author

Iannucci, Jaclyn, Dominy, Reagan, Bandopadhyay, Shreya, Arthur, E. Madison, Noarbe, Brenda, Jullienne, Amandine, Krkasharyan, Margret, Tobin, Richard P., Pereverzev, Aleksandr, Beevers, Samantha, Venkatasamy, Lavanya, Souza, Karienn A., Jupiter, Daniel C., Dabney, Alan, Obenaus, Andre, Newell-Rogers, M. Karen, and Shapiro, Lee A.

Published
2024
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26. Cognitive integrity in Non‐Demented Individuals with Alzheimer's Neuropathology is associated with preservation and remodeling of dendritic spines.

Author

Guptarak, Jutatip, Scaduto, Pietro, Tumurbaatar, Batbayar, Zhang, Wen Ru, Jupiter, Daniel, Taglialatela, Giulio, and Fracassi, Anna

Abstract

INTRODUCTION: Individuals referred to as Non‐Demented with Alzheimer's Neuropathology (NDAN) exhibit cognitive resilience despite presenting Alzheimer's disease (AD) histopathological signs. Investigating the mechanisms behind this resilience may unveil crucial insights into AD resistance. METHODS: DiI labeling technique was used to analyze dendritic spine morphology in control (CTRL), AD, and NDAN post mortem frontal cortex, particularly focusing on spine types near and far from amyloid beta (Aβ) plaques. RESULTS: NDAN subjects displayed a higher spine density in regions distant from Aβ plaques versus AD patients. In distal areas from the plaques, NDAN individuals exhibited more immature spines, while AD patients had a prevalence of mature spines. Additionally, our examination of levels of Peptidyl‐prolyl cis‐trans isomerase NIMA‐interacting 1 (Pin1), a protein associated with synaptic plasticity and AD, showed significantly lower expression in AD versus NDAN and CTRL. DISCUSSION: These results suggest that NDAN individuals undergo synaptic remodeling, potentially facilitated by Pin1, serving as a compensatory mechanism to preserve cognitive function despite AD pathology. Highlights: Spine density is reduced near Aβ plaques compared to the distal area in CTRL, AD, and NDAN dendrites.NDAN shows higher spine density than AD in areas far from Aβ plaques.Far from Aβ plaques, NDAN has a higher density of immature spines, AD a higher density of mature spines.AD individuals show significantly lower levels of Pin1 compared to NDAN and CTRL. [ABSTRACT FROM AUTHOR]

Published
2024
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43. Multipliers on Dirichlet type spaces

Author

Jupiter, Daniel and Redett, David

Subjects
Mathematics - Functional Analysis, Mathematics - Complex Variables, 46E22, 46E20, 47B32
Abstract

In this article we examine Dirichlet type spaces in the unit polydisc, and multipliers between these spaces. These results extend the corresponding work of G. D. Taylor in the unit disc. In addition, we consider functions on the polydisc whose restrictions to lower dimensional polydiscs lie in the corresponding Dirichet type spaces. We see that such functions need not be in the Dirichlet type space of the whole polydisc. Similar observations are made regarding multipliers., Comment: 21 pages

Published
2005

47. Global approximation of CR functions on Bloom-Graham model graphs in $C^n$

Author

Boggess, Albert and Jupiter, Daniel

Subjects
Mathematics - Complex Variables, 32V10, 32V99, 30E10 (Primary)
Abstract

We define a class of generic CR submanifolds of $C^n$ of real codimension $d$, with $d$ in $1, ..., n-1$, called the Bloom-Graham model graphs, whose graphing functions are partially decoupled in their dependence on the variables in the real directions. We prove a global version of the Baouendi-Treves CR approximation theorem, for Bloom-Graham model graphs with a polynomial growth assumption on their graphing functions., Comment: 8 pages

Published
2004

48. Invariant subspaces of $RL^1$

Author

Jupiter, Daniel and Redett, David

Subjects
Mathematics - Functional Analysis, 47A15 (Primary), 46E30 (Secondary)
Abstract

In this note we extend D. Singh and A. A. W. Mehanna's invariant subspace theorem for $RH^1$ (the real Banach space of analytic functions in $H^1$ with real Taylor coefficients) to the simply invariant subspaces of $RL^1$ (the real Banach space of functions in $L^1$ with real Fourier coefficients)., Comment: 4 pages

Published
2004

49. A schlichtness theorem for envelopes of holomorphy

Author

Jupiter, Daniel

Subjects
Mathematics - Complex Variables, 32D10, 32A10
Abstract

Let Omega be a domain in C^2. We prove the following theorem. If the envelope of holomorphy of Omega is schlicht over Omega, then the envelope is in fact schlicht. We provide examples showing that the theorem is not true in C^n, n>2. Additionally, we show that the theorem cannot be generalized to provide information about domains in C^2 whose envelopes are multiply sheeted., Comment: 10 pages, final version for publication

Published
2004

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