#### Filter Results:

- Full text PDF available (19)

#### Publication Year

1983

2017

- This year (1)
- Last 5 years (14)
- Last 10 years (19)

#### Publication Type

#### Co-author

#### Journals and Conferences

#### Key Phrases

Learn More

We survey what is known about limitwise monotonic functions and sets and discuss their applications in effective algebra and computable model theory. Additionally, we characterize the computably enumerable degrees that are totally limitwise monotonic, show the support strictly increasing 0′-limitwise monotonic sets on Q do not capture the sets with… (More)

We examine the sequences A that are low for dimension, i.e., those for which the effective (Hausdorff) dimension relative to A is the same as the unrelativized effective dimension. Lowness for dimension is a weakening of lowness for randomness, a central notion in effective randomness. By considering analogues of characterizations of lowness for randomness,… (More)

- Steven R Nokes, F. Reed Murtagh, +4 authors Martin L. Silbiger
- Radiology
- 1987

The spinal cords of 28 scoliosis patients between the ages of 1 month and 17 years were examined with magnetic resonance (MR) imaging. Complete visualization was obtained in all cases. In 15 patients (53%) neuropathologic abnormalities demonstrated by MR imaging significantly affected their clinical course, including tethered cords (n = 7), syringomyelia (n… (More)

- Suresh K. Mukherji, Daniel Turetsky, Roger P Tart, Anthony Mancuso
- AJNR. American journal of neuroradiology
- 1994

A technique for performing core biopsies of indeterminate masses of the extracranial head and neck is described. Four patients with suspicious masses of the extracranial head and neck underwent coaxial core biopsies through an 18-gauge Hawkins-Akins blunt tip needle. Three of the four patients had diagnostically adequate samples. There were no neurologic or… (More)

- Daniel Turetsky
- Theor. Comput. Sci.
- 2011

We prove that the set of all points of effective Hausdorff dimension 1 in Rn (n ≥ 2) is connected, and simultaneously that the complement of this set is not path-connected when n = 2.

- Rodney G. Downey, Asher M. Kach, +4 authors Grete Herrmann
- 2013

We show that the index set complexity of the computably categorical structures is Π1-complete, demonstrating that computable categoricity has no simple syntactic characterization. As a consequence of our proof, we exhibit, for every computable ordinal α, a computable structure that is computably categorical but not relatively ∆α-categorical.

- Rodney G. Downey, Sergei S. Goncharov, +4 authors Daniel Turetsky
- Notre Dame Journal of Formal Logic
- 2010

We study completely decomposable torsion-free abelian groups of the form GS := ⊕n∈SQpn for sets S ⊆ ω. We show that GS has a decidable copy if and only if S is Σ2 and has a computable copy if and only if S is Σ 0 3.

- Chi Tat Chong, Gordon Hoi, Frank Stephan, Daniel Turetsky
- Logical Methods in Computer Science
- 2015

The current work introduces the notion of pdominant sets and studies their recursion-theoretic properties. Here a set A is called pdominant iff there is a partial A-recursive function ψ such that for every partial recursive function φ and almost every x in the domain of φ there is a y in the domain of ψ with y ≤ x and ψ(y) > φ(x). While there is a full Π 1… (More)

- Jiney Jose, Mafdy Basta, Kathy J Cramer, Mindy J. Fain, Daniel Turetsky
- American journal of optometry and physiological…
- 1983

Intraocular pressure (IOP) was measured in humans by Goldmann tonometry. Pressures were compared with either benoxinate or proparacaine as the anesthetic. It was found that the values obtained did not differ depending upon the choice of anesthetic.

- Laurent Bienvenu, Rodney G. Downey, Noam Greenberg, André Nies, Daniel Turetsky
- J. Symb. Log.
- 2014

We show the existence of noncomputable oracles which are low for Demuth randomness, answering a question in [14] (also Problem 5.5.19 in [33]). We fully characterize lowness for Demuth randomness using an appropriate notion of traceability. Central to this characterization is a partial relativization of Demuth randomness, which may be more natural than the… (More)