Efficacy and safety of endoscopic hemostasis with a self-assembling peptide solution in patients with colonic diverticular bleeding: A multicenter pilot study.

Background And Aims: PuraStat (3-D Matrix, Tokyo, Japan) is an absorbent localized hemostatic agent that utilizes self-assembling peptide technology. In this multicenter pilot study, we evaluated the efficacy and safety of endoscopic hemostasis using PuraStat in patients with colonic diverticular bleeding (CDB).

Methods: This study involved patients who had CDB with stigmata of recent hemorrhage (SRH) and underwent endoscopic hemostasis with PuraStat monotherapy or combination therapy comprising PuraStat with endoscopic band ligation (EBL) or clipping (Group A).

Hearing "number"? Relative quantity judgments through the echolocation by bottlenose dolphins (Tursiops truncatus).

Dolphins are known to recognize their environment through echolocation. Previous studies have reported that they can discriminate the shape, size, thickness, and even material of objects through echolocation. However, little is known about the discrimination of quantities other than size and thickness (e.

Chimpanzees utilize video as reference in a spatiotemporally distant search for hidden food.

Referring to things that are displaced in space and time is one of the defining features of human language. In order to better understand the evolution of human language, it is therefore important to explore how widely the ability for displaced reference is shared in animal kingdom. In this study, we explored whether chimpanzees are capable of uzsing video as a displaced reference in a spatiotemporally distant task.

Are chimpanzees futurists? Effects of motion lines and motion blur on the judgments of global motion direction in chimpanzees (Pan troglodytes).

Based on the invention and development of photography and movie in the 19th century, schools of contemporary art, such as Futurism, have emerged that express the dynamism of motion in painting. Painting techniques such as multiple stroboscopic images, motion blur, and motion lines are culturally based, but the biological basis of their perception has also been intensively investigated recently. Then what are the evolutionary origins of such pictorial representations of motion? Do nonhuman animals also have sensitivity to such representations? To address this question, we examined the effects of motion blur and motion lines on the judgments of global motion directions in chimpanzees.

Assessing the motivational value of infant video clips on chimpanzees through discrimination learning task.

The motivational value of visual infant stimuli in humans is considered to encourage parental behavior. To explore the evolutionary roots of this preference for infants, we examined the reward value of conspecific infant videos compared to adult ones in nine chimpanzees. We employed a novel approach, a simultaneous discrimination task with differential sensory reinforcement.