Arno Formella Universität des Saarlandes, FB 14 Informatik, 66041 Saarbrücken, Germany Abstract—We present a very efficient algorithm which calculates deterministically the path losses, delay profiles and other characteristics of a mobile channel. The algorithm can be used both for indoor and outdoor environments. We apply the technique of tracing rays and compute reflections, transmissions and...

Realistic modeling of reverberant sound in 3D virtual worlds provides users with important cues for localizing sound sources and understanding spatial properties of the environment. Unfortunately, current geometric acoustic modeling systems do not accurately simulate reverberant sound. Instead, they model only direct transmission and specular reflection, while diffraction is either ignored or m...

The universal temperature-dependence model (UTD) of the metabolic theory of ecology (MTE) proposes that temperature controls mass-scaled, whole-animal resting metabolic rate according to the first principles of physics (Boltzmann kinetics). Controversy surrounds the model's implication of a mechanistic basis for metabolism that excludes the effects of adaptive regulation, and it is unclear how ...

Molecular data from cancer tumours is characterized by the fact that the number of measured features is in the tens of thousands, while the number of samples is a few hundred at best. This mismatch necessitates the development of new algorithms for sparse regression and sparse classification with an eye towards cancer applications. Another aspect of biological data, which has no analogue in eng...

One of the areas in Maros Regency that has geothermal potential is located Samaenre, Mallawa District, where hot springs are a few kilometers from residential areas. This water source around river. Hot produced as result discharge groundwater earth's crust after being heated geothermal. Research been carried out aims to determine mineral content and crystal structure by using X-Ray Diffraction ...

OBJECTIVE Underimmunized children are less frequently screened for anemia and elevated lead levels than those who are up-to-date (UTD). However, the association between underimmunization and actual disease (hemoglobin [Hgb] <11 g/dL or blood lead level [PbB] >/=10 microg/dL) has not been reported. The objective of this study was to evaluate the association between underimmunization, anemia, and...

As infants are being identified earlier and earlier by universal newborn hearing screening programs, there is a need to establish principles for professionals involved in habilitative processes. Recently, a panel of experts was convened for a 2-day conference entitled "Habilitative Issues for Infants with Hearing Loss," the Bruton Conference on Audiology/Communication Sciences, UTD/Callier Cent...