Trust is the foundation of a successful patient-dentist relationship, as with all other relationships. By engendering feelings of ease and confidence in his or her abilities, a skilled dentist is capable of allaying a patient's fears, and of rendering the dental encounter a pleasant and painless one. A heightened sense of trust also facilitates a patient's interactions with the dentist, provides a greater feeling of satisfaction with provided dental services, and promotes therapeutic compliance. Although few studies have directly examined trust, factors that comprise the concept were reviewed in order to recommend ways to increase trust in patient care.

The ability of a bacterium to adhere to various surfaces is important in environmental and biomedical applications. While studying bacterial adhesion in the laboratory, unwanted artifacts can be caused by cell preparation and treatment protocols, which are used in virtually all experimental investigations. We investigated the effects of three cell separation methods (centrifugation, multiple rounds of centrifugation, and filtration) on the retention behavior of two Gram-negative bacteria: Pseudomonas putida KT2442 and Escherichia coli HB101.

The present article will explore how the collapse of the pharyngeal airway during sleep, a phenomenon currently identified as an indicator of disease, may confer specific homeostatic benefits. More specifically, we will consider how the pathologically large size of the fleshy structures in the pharyngeal airway, along with relative hypotonicity of the pharyngeal musculature may have provided our ancestors with a selective advantage by enabling them to reduce nocturnal, respiratory heat loss.

The present experiment investigated relationships among dominance status, sex, risk, and feeding behavior using house sparrows, Passer domesticus. Feeding behavior was observed in wild male and female house sparrows at high- and low-risk food sites (i.e., those with and without a model snake, respectively). At high-risk sites, birds avoided the snake by feeding on the opposite side of the food source. Small-badge (presumed subordinate) males far outnumbered other males at high-risk feeding sites, whereas medium-badge (presumed intermediate ranked) males far outnumbered other males at the low-risk sites. For low-ranking males, this strategy might maximize food acquisition and reduce the cost of competition. Overall, the present findings suggest that animals' feeding behaviors and responses to risk differ depending on social rank.