3,947 research outputs found
Distribution of Caustic-Crossing Intervals for Galactic Binary-Lens Microlensing Events
Detection of caustic crossings of binary-lens gravitational microlensing
events is important because by detecting them one can obtain useful information
both about the lens and source star. In this paper, we compute the distribution
of the intervals between two successive caustic crossings, , for
Galactic bulge binary-lens events to investigate the observational strategy for
the optimal detection and resolution of caustic crossings. From this
computation, we find that the distribution is highly skewed toward short
and peaks at days. For the maximal detection
of caustic crossings, therefore, prompt initiation of followup observations for
intensive monitoring of events will be important. We estimate that under the
strategy of the current followup observations with a second caustic-crossing
preparation time of days, the fraction of events with resolvable
caustic crossing is . We find that if the followup observations can
be initiated within 1 day after the first caustic crossing by adopting more
aggressive observational strategies, the detection rate can be improved into
.Comment: total 6 pages, including 5 Figures and no Table, submitted to MNRA
\u3cem\u3eTherasense\u3c/em\u3e Nonsense
In Therasense v. Becton, Dickinson & Co., a sharply divided en banc Court of Appeals for the Federal Circuit pronounced a new standard for inequitable conduct. Despite the reasons set forth by the concurring and dissenting judges, the majority elevated the requirements for inequitable conduct. Specifically, the Therasense majority required two elements to be shown: (1) specific intent to deceive; and (2) but-for materiality. Specific intent is established if one can show proof of: (a) knowledge of the information; (b) knowledge of the materiality of the information; and (c) deliberate decision to withhold the information from the United States Patent and Trademark Office ( USPTO or PTO ). But-for materiality requires one to show that the patent would not have issued but-for the withheld information. This article analyzes the Therasense majority\u27s heightened requirement for inequitable conduct and shows why the requirement is not only impractical, but also logically impossible to meet
Multidimensional Signaling with a Resource Constraint
We study multidimensional signaling (cognitive/non-cognitive) as a sender's
portfolio choice with a resource constraint. We establish the existence of a
unique monotone D1 equilibrium where the cognitive (non-cognitive) signal
increases (decreases) in sender type and the sum of the two increases in sender
type. The equilibrium is characterized by two threshold sender types. The low
threshold is one where a kink occurs in signaling. The constraint is binding
only for sender types above it. The high threshold is the other one, above
which all types spend all the resources in cognitive signal with pooling and
discontinuity on the top
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