Controlled Locomotion of a Minimal Soft Structure by Stick-Slip Nonlinearity.

We present a locomotion mechanism that uses the stick-slip transition of a soft passive structure with an internal mechanical resonance. The structure is harmonically driven by a global vertical shaking and, because of its resonance dephasing and the threshold response of stick-slip transition, it can either move forward or backward. We establish a relation for the motion acceleration threshold that we experimentally validate.

Physicians' perceptions of the daily use of a handheld ultrasound device in the labor room.

Objective: The objective of our study was to describe the perception of physicians who use a handheld ultrasound (US) device in an intensive perinatal care unit.

Methods: We conducted a prospective observational study in the labor ward of an intensive perinatal care unit between November 2021 and May 2022. Obstetrics & Gynecology residents in rotation in our department during this time were recruited as participants in this study.

The burning maze: The potential value of the human bony labyrinth in estimating sex of calcined remains.

Estimating sex from burnt human remains is a challenging task in bioanthropology, mainly due to their high level of alteration and fragmentation. Protected within the petrous part of the temporal bone, the bony labyrinth may be particularly valuable for assessing the sex of burnt remains. This prospective study aims at testing predictive models, already found reliable on unburnt bony labyrinths, to burnt specimens.

Cesarean delivery on maternal request: How do French obstetricians feel about it?

Objective: The number of cesarean deliveries on maternal request (CDMR) is unknown in France. We aimed to evaluate the rate of obstetricians willing to perform a CDMR in 2020 in Paris and to compare OB/GYN seniors' and residents' points of view about CDMR using six hypothetical clinical scenarios.

Study Design: A survey was conducted between January to March 2020 with an anonymous self-administrated questionnaire sent by email to OB/GYN seniors working in 16 public and private maternity units and residents of Paris.

Sexing the bony labyrinth: A morphometric investigation in a subadult and adult Belgian identified sample.

In forensic anthropology, sex estimation is a fundamental step in assessing individual biological profiles when analyzing human skeletons. Yet, current methods are not reliable enough to allow an accurate sex identification of highly fragmented, burnt, or subadult remains. This paper aims to investigate sexual dimorphism of the bony labyrinth on both identified subadult and adult individuals.

Wounded to the bone: Digital microscopic analysis of traumas in a medieval mass grave assemblage (Sandbjerget, Denmark, AD 1300-1350).

Battle-related mass burials are considered the most unequivocal evidence of past violence. However, most published studies involve only macroscopic analysis of skeletal remains, commonly arriving only at broad conclusions regarding trauma interpretation. The current study considers a possible avenue for achieving both greater detail and accuracy through digital microscopy.

Normal growth, altered growth? Study of the relationship between harris lines and bone form within a post-medieval plague cemetery (Dendermonde, Belgium, 16th Century).

Objectives: Harris lines (HLs) are defined as transverse, mineralized lines associated with temporary growth arrest. In paleopathology, HLs are used to reconstruct health status of past populations. However, their etiology is still obscure.