Let's not use it! A dynamic no-use zone between the home ranges of two spider monkey groups.

It is common that neighboring groups of the same species use some of the same areas, resulting in home-range overlap. Areas between the home ranges of neighboring groups not used by either group (no-use zone or NUZ) are rarely reported. Here, we report the existence of a NUZ between the home ranges of two Geoffroy's spider monkey groups, and examine its spatial changes over time and the ecological and behavioral underpinnings of such phenomenon.

A SEM study of canal cleanliness after a new nickel-titanium rotary instrumentation technique.

The purpose of this in vitro study was to evaluate the degree of smear layer removal after root canal preparation with TF(®) instruments, combined with two different irrigating solutions.For the present study twenty-two freshly extracted human roots were selected. All teeth had been extracted for periodontal purpose.

[Laparoscopic cholecystectomy in day-surgery analysis of feasibility in 166 consecutive patients].

Background: Day-Surgery (DS) is a widely spreading reality, both for clinical advantages to patients and organizational and economic profit to hospitals. In the last years, DS has been proposed for the treatment of a large number of diseases as inguinal and crural hernias, varicose vein, benign anorectal and thyroid pathologies. Recently, also laparoscopic cholecystectomy (LC) has been realised as DS procedure, and the initial results are promising.