The alimentary tract at birth is either sterile or contains only a few micro-organisms (Wilson and Miles, 1955). Within a few days of birth a profuse flora is established in the mouth and large intestine. However, the small intestine remains relatively free from micro-organisms throughout life (Cregan and Hayward, 1953; Anderson and Langford, 1958a). Thus in health it seems that some antibacter...

Impact damage, excessive loading, and corrosion have been identified as critical and long-term problems that constantly threaten the integrity and reliability of structural systems (e.g., civil infrastructures, aircrafts, and naval vessels). While a variety of sensing transducers have been proposed for structural health monitoring, most sensors only offer measurement of structural behavior at d...

Species distribution models are used extensively in predicting the distribution of vegetation across a landscape. Accuracy of the species distribution maps produced by these models deserves attention, since low accuracy maps may lead to erroneous conservation decisions. While plot size is known to influence measures of species richness, its effect on our ability to predict species distribution ...

In this paper, we study the quasinormal modes for scalar, electromagnetic, and gravitational axial perturbations in Hayward regular black hole surrounded by quintessence (HBH-[Formula: see text]). Using third-order WKB approximation, can determine dependence of on parameters test fields. We also greybody factor, giving transmission reflection coefficients scattered wave through effective potent...

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In this paper, we attempt to further study the heat engine efficiency for regular black hole (BH) with an anti-de Sitter (AdS) background where working material is Hayward–AdS (HAdS) BH. extended phase space, investigate of HAdS BH by defining cosmological constant as thermodynamic pressure P and deriving mechanical work from PdV terms. Then, obtain relation between entropy/pressure plot these ...