Boredom due to being over- or under-challenged in mathematics: A latent profile analysis.

Background: Recent research on boredom suggests that it can emerge in situations characterized by over- and under-challenge. In learning contexts, this implies that high boredom may be experienced both by low- and high-achieving students.

Aims: This research aimed to explore the existence and prevalence of boredom due to being over- and under-challenged in mathematics, for which empirical evidence is lacking.

Patient-reported outcomes at three months after pancreatic surgery for benign and malignant diseases - A prospective observational study.

Background/objectives: Pancreatic surgery may have a long-lasting effect on patients' health status and quality of life (QoL). We aim to evaluate patient-reported outcomes (PRO) 3 months after pancreatic surgery.

Methods: Patients scheduled for pancreatic surgery were enrolled in a prospective trial at five German centers.

SOCIUS Mentoring-A Novel Course to Encourage Students for a Career as Surgical Oncologists.

Surgical disciplines are affected by an increasing shortage of young doctors. Studies show that formerly interested students decide against a career in surgical disciplines at the end of their studies or during practical year. Measures to counteract this development are urgently needed.

Giant Diffusion of Nanomechanical Rotors in a Tilted Washboard Potential.

We present an experimental realization of a biased optical periodic potential in the low friction limit. The noise-induced bistability between locked (torsional) and running (spinning) states in the rotational motion of a nanodumbbell is driven by an elliptically polarized light beam tilting the angular potential. By varying the gas pressure around the point of maximum intermittency, the rotational effective diffusion coefficient increases by more than 3 orders of magnitude over free-space diffusion.

Antibiotic-Resistant Bacteria Colonizing the Bile Duct Are Associated with Increased Morbidity and Mortality after Resection of Extrahepatic Cholangiocarcinoma.

Patients with extrahepatic cholangiocarcinoma (CCA) face considerable morbidity including septic complications after surgery. The aim of this study was to characterize the bacterial spectrum of the common hepatic duct (CHD) and its clinical relevance regarding morbidity and mortality after resection of extrahepatic CCA. We retrospectively analyzed data from 205 patients undergoing surgery for extrahepatic CCA in our department between January 2000 and March 2015.