Publications by authors named "P Widmer"
Article Synopsis
- The text discusses human range expansions since leaving Africa, focusing particularly on the small-scale expansions of the Walser people in the Alps from southern Switzerland.
- The study provides a comprehensive genetic analysis of multiple Walser and non-Walser Alpine communities, highlighting low to moderate genetic differentiation among them.
- Additionally, the findings include the unique presence of haplogroup W6 in the Walser communities, suggesting the need for further research into the population genetics of Alpine regions.
Article Synopsis
- Researchers investigated Menzerath's Law in meerkats' vocalizations, which suggests a link between the number of calls in a sequence and their length.
- They analyzed 1,676 vocal bouts from 89 wild meerkats and found that, contrary to the law, longer calls occurred when there were more calls in a bout.
- However, they did observe a negative relationship between the size of a bout and the duration of inter-call intervals, indicating complex dynamics in meerkat communication.
Diagnosis-related group (DRG) hospital reimbursement systems differentiate cases into cost-homogenous groups based on patient characteristics. However, exogenous organizational and regional factors can influence hospital costs beyond case-mix differences. Therefore, most countries using DRG systems incorporate adjustments for such factors into their reimbursement structure.
View Article and Find Full Text PDFOptionality in animal communication: a novel framework for examining the evolution of arbitrariness.
Biol Rev Camb Philos Soc
December 2022
A critical feature of language is that the form of words need not bear any perceptual similarity to their function - these relationships can be 'arbitrary'. The capacity to process these arbitrary form-function associations facilitates the enormous expressive power of language. However, the evolutionary roots of our capacity for arbitrariness, i.
View Article and Find Full Text PDF: The aim of this systematic review was to determine whether prehabilitation before total hip arthroplasty, in the form of exercise therapy, education alone, or both together, improves postoperative outcomes, such as physical functioning, compared with no intervention. : A systematic literature search was performed in the online databases PubMed, PEDro and Cochrane Library using the following search keywords: "prehabilitation", "preoperative care", and "total hip replacement". : A total of 400 potentially relevant studies were identified.
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