Cleaner wrasses are a model for the study of animal cooperation. Prospective clients can observe whether the cleaner works faithfully, and cleaners being watched remove just parasites while those that are not, nip the client for a tastier snack.

Background and study aims  Water drop adhesions (WDA) impair endoscopic view during gastrointestinal endoscopy. We developed a novel lens cleaner designed using two types of harmLess surfactants and it is reported to be useful for preventing lens cloudiness during colorectal ESD. In the current study, we examined the ability of it for preventing and removing WDA. Patients and methods  During ...

This research assesses the environmental and economic benefits and costs of cleaner production projects formulated by smalland medium-sized enterprises (SMEs) participating in a sustainable supply program in Mexico. The program was designed as a public-private voluntary partnership to spur cleaner production dissemination in SMEs that are part of global supply chains. The study analyzes how pro...

Stepping Piezo Actuators (SPA) are long stroke linear piezoelectric actuators able to perform long stroke (typ. >10mm) with an important resolution (typ. <1nm). Use of famous Amplified Piezo Actuator APA gives the motor interesting characteristics, such as useful deformation mode and speed improvement, compared to standard inertial motors. The paper proposes experimental results obtained on var...

The word "place" is curiously wide in its application, going beyond strict spatiality. A traditional town is a place, the right half of that field is a place, the vacuum cleaner has its place in the closet, the children's place is upstairs, the woman's place was in the home, the third line on the form is the place for this year's income, and as we grow up we try to find our place within the mes...

THE POTENTIAL USE of antibody for diagnostic or therapeutic applications in human cancer may well depend upon the ability to synthesize large quantities of monospecific "anti-tumour" immunoglobulin in vitro. In this respect, the hybridoma technology has produced murine monoclonal antibodies directed against a number of human tumour-associated antigens (Koprowski et al., 1978; Yeh et al., 1979; ...