− In this paper a simple algorithm to detect an emergency vehicle’s siren using the linear prediction is presented. By measuring the means and variances of the reflection coefficients in a preselected number of successive frames, automatic detection of emergency vehicle’s siren is possible. It has been shown that only two coefficients are enough for successful detection. Due to the simplicity o...

Hippocrates recognized that determining a patient’s prognosis is one of physicians’ most important responsibilities.1 Although research on prognosis has been outpaced by that on etiology and therapy, scientists have made great strides in characterizing the risk factors for death across all areas of medicine.2 However, this deeper understanding of prognosis comes at the expense of simplicity; in...

MY first words must be those of thanks to Professor Graham Kerr for providing me with every facility for carrying out the research, the results of which are embodied in this short paper. He invited me to work in his laboratory, provided me with material already stained and mounted, and was especially helpful in suggestion and criticism. Owing to the uncertainty as to the time available for this...

Many plants provide predatory arthropods with food or shelter. Glandular trichomes entrap insects and may provision predators with insect carrion, though it has not been clear whether this putative benefit functions with natural amounts of carrion, whether plants actively attract insect "tourists," and how common this provisioning system is. We tested the hypothesis that a sticky columbine (Aqu...

Gravitational waves (GWs) from supermassive binary black hole (BBH) inspirals are potentially powerful standard sirens (the GW analog to standard candles) (Schutz 1986, 2002). Because these systems are well-modeled, the space-based GW observatory LISA will be able to measure the luminosity distance (but not the redshift) to some distant massive BBH systems with 1–10% accuracy. This accuracy is ...

Introduction Over the past decade, decapitation, particularly high-value targeting (HVT), has come into vogue and is being increasingly applied in a variety of counterterrorism, counterinsurgency, and anti-organized crime settings around the world. There are several reasons for this widespread adoption of high-value targeting as a dominant interdiction pattern. First, there is a long tradition ...

While most theorists are tied to the mast of four dimensions, some have found it irresistible to speculate about eleven dimensions, the domain of M-theory. We outline a program which starts from the light-cone description of supergravity, and tracks its divergences to suggest the existence of an infinite component theory which in the light-cone relies on the coset F4/SO(9), long known to be lin...

Most studies of salamander locomotion have focused either on swimming or terrestrial walking, but some salamanders also use limb-based locomotion while submerged under water (aquatic walking). In this study we used video motion analysis to describe the aquatic walking gait of Siren lacertina, an elongate salamander with reduced forelimbs and no hindlimbs. We found that S. lacertina uses a biped...