2,691 research outputs found
Integral points on elliptic curves and explicit valuations of division polynomials
Assuming Lang's conjectured lower bound on the heights of non-torsion points
on an elliptic curve, we show that there exists an absolute constant C such
that for any elliptic curve E/Q and non-torsion point P in E(Q), there is at
most one integral multiple [n]P such that n > C. The proof is a modification of
a proof of Ingram giving an unconditional but not uniform bound. The new
ingredient is a collection of explicit formulae for the sequence of valuations
of the division polynomials. For P of non-singular reduction, such sequences
are already well described in most cases, but for P of singular reduction, we
are led to define a new class of sequences called elliptic troublemaker
sequences, which measure the failure of the Neron local height to be quadratic.
As a corollary in the spirit of a conjecture of Lang and Hall, we obtain a
uniform upper bound on h(P)/h(E) for integer points having two large integral
multiples.Comment: 41 pages; minor corrections and improvements to expositio
Programmable telemetry system Patent
Time division multiplexed telemetry transmitting system controlled by programmed memor
Composite isogrid structures for parabolic surfaces
The invention relates to high stiffness parabolic structures utilizing integral reinforced grids. The parabolic structures implement the use of isogrid structures which incorporate unique and efficient orthotropic patterns for efficient stiffness and structural stability
Impact of changing US cigarette smoking patterns on incident cancer: Risks of 20 smoking-related cancers among the women and men of the NIH-AARP cohort
Background: Historically, US women started smoking at a later age than men and had lower relative risks for smoking-related cancers. However, more recent birth cohorts of women and men have similar smoking histories and have now reached the high-risk age for cancer. The impact of these changes on cancer incidence has not been systematically examined. Methods: Relative risks (RR), 95% confidence intervals (CI) and attributable fractions were calculated for cigarette smoking and incidence of 20 smoking-related cancers in 186 057 women and 266 074 men of the National Institutes of Health-AARP cohort, aged 50 to 71 years in 1995 and followed for 11 years. Results: In the cohort, which included participants born between 1924 and 1945, most women and men started smoking as teenagers. RRs for current vs never smoking were similar in women and men for the following cancers: lung squamous-cell (RR women: 121.4, 95% CI: 57.3–257.4; RR men:114.6, 95% CI: 61.2–214.4), lung adenocarcinoma (RR women: 11.7, 95% CI: 9.8–14.0; RR men: 15.6, 95% CI: 12.5–19.6), laryngeal (RR women: 37.0, 95% CI: 14.9–92.3; RR men: 13.8, 95% CI: 9.3–20.2), oral cavity-pharyngeal (RR women:4.4, 95% CI: 3.3–6.0; RR men: 3.8, 95% CI: 3.0–4.7), oesophageal squamous cell (RR women: 7.3, 95% CI: 3.5–15.5; RR men: 6.2, 95% CI: 2.8–13.7), bladder (RR women: 4.7, 95% CI: 3.7–5.8; RR men: 4.0, 95% CI: 3.5–4.5), colon (RR women: 1.3, 95% CI: 1.2–1.5; RR men: 1.3, 95% CI: 1.1–1.4), and at other sites, with similar attributable fractions. Conclusions: RRs for current smoking and incidence of many smoking-related cancers are now similar in US women and men, likely reflecting converging smoking patterns
UT3 RELIABILITY OF HEALTH UTILITIES INDEX (HUI) SCORES: PATIENT AND PARENT INTER-RATER AGREEMENT ACROSS TWO CLINICAL TRIALS OF TREATMENT FOR ACUTE LYMPHOBLASTIC LEUKEMIA (ALL) IN CHILDHOOD
Patent No. US 9,090,589 B2: Specific NNOS Inhibitors for the Therapy and Prevention of Human Melanoma
Methods for melanoma treatment and prevention with selective nitric oxide synthase inhibitor compounds and related pharmaceutical compositions, alone or in conjunction with one or more other melanoma therapies
Cell cycle regulatory proteins and oral squamous cell carcinoma development
Abstract no. 1279published_or_final_versio
A New Dental Superalloy System: V. Embrittling Phase Transformations
The σ phase is rich in Ta. When the Ta concentration is less than 14%, σ does not interfere with the slip mechanism; when the Ta concentration is more than 15%, σ interferes with the slip mechanism. The coherent α-Co 3Ta phase forms at Ta concentrations of less than 15%, whereas incoherent γ-Co 2Ta forms only at higher Ta concentrations. The interface between σ and the matrix is an important factor in the failure mechanism.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/67929/2/10.1177_00220345740530013301.pd
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