The localization algorithm based on the doublethresholding (LAD) method was originally proposed for detecting and localizing narrowband (NB) signals with respect to the search bandwidth. Its weakness is that the localized signal is often split into several parts, especially when the signal-to-noise ratio (SNR) is low. This may lead to the illusion of unoccupied frequencies in the middle of the ...

Large nebulae (&50 kpc) emitting strongly in Lyα (also known as Lyα “blobs”) are likely signposts of ongoing massive galaxy formation. The relative rarity of these sources and their discovery in wellstudied galaxy overdensities suggest that they may be associated with regions of high galaxy density. One of the largest Lyα nebulae, discovered at a redshift of z ≈ 2.7 via its strong mid-infrared ...

Median regression analysis has robustness properties which make it an attractive alternative to regression based on the mean. In this paper, the missing information principle is applied to a right-censored version of the median regression model, leading to a new estimator for the regression parameters. Our approach adapts Efron's derivation of self-consistency for the Kaplan{Meier estimator to ...

A paremiologic (study of proverbs) case is presented as a part of a wider project, based on data collected by thousands of interviews made to people from Azores, and involving a set of twenty-two thousand Portuguese proverbs, where we searched for the minimum information needed to identify the birthplace island of an interviewee. The concept of birthplace was extended for all respondents that h...

Infant directed speech (IDS) is the special speech register used to talk to human infants. This paper provides an historical and theoretical background to the study of IDS and special speech registers, as an introduction to four papers which follow. These are concerned with Australian IDS [2], Thai IDS [3,4], and Australian pet directed speech (PDS) [5]. 1. Infant Directed Speech A Brief Histor...

This paper combines the least squaress estimate, least absolute deviation estimate, least median estimate with Bootstrap method. When the overall error distribution is unknown or it is not the normal distribution, we estimate the regression coefficient and confidence interval of coefficient, and through data simulation, obtain Bootstrap method, which can improve stability of regression coeffici...

Linear State Space Modeling determines the hidden autoregressive (AR) process in a noisy time series; for an AR process the time series’ current value is the sum of current stochastic “noise” and a linear combination of previous values. We present preliminary results from modeling a sample of 4 channel BATSE LAD lightcurves. We determine the order of the AR process necessary to model the bursts...

The paper is concerned with the problem of binary classification of data records, given an already classified training set of records. Among the various approaches to the problem, the methodology of the logical analysis of data (LAD) is considered. Such approach is based on discrete mathematics, with special emphasis on Boolean functions. With respect to the standard LAD procedure, enhancements...

Platelets bound to thrombogenic surfaces have been shown to support activation-dependent firm adhesion of neutrophils in flow following selectin-mediated tethering and rolling. The specific receptor(s) responsible for mediating adhesion-strengthening interactions between neutrophils and platelets has not previously been identified. Furthermore, the ability of adherent platelets to support the m...

Rare calcareous nannofossils from the Cape Roberts Project drillhole CRP-2A indicate that this area was episodically invaded by marginal oceanic surface waters during the late and late early Oligocene. These depauperate assemblages lack most of the biostratigraphic index fossils for the Oligocene, but do provide two datums that aid in constraining the age of the section: the last appearance dat...