Epidemiology of classic psychedelic substances: results from a Norwegian internet convenience sample.

Objective: In recent years, there has been a renewed interest in investigating the use of classic psychedelics such as psilocybin and lysergic acid diethylamide (LSD) in the treatment of mental disorders and substance use disorders. However, knowledge about the epidemiology of classic psychedelics in the Nordic countries is limited.

Methods: We recruited adult, Norwegian participants who have had a memorable experience after taking a classic psychedelic substance.

Through the Eyes of Patients: Understanding Treatment Burden of Intravitreal Anti-VEGF Injections for nAMD Patients in Norway.

Purpose: Patients with neovascular age-related macular degeneration (nAMD) are treated with frequent intravitreal injections to maintain vision. The treatment frequency impacts the life of patients and caregivers and poses a major capacity challenge for Norwegian ophthalmic clinics. The purpose of this survey was to document patient-reported outcomes on how the disease and the treatment impact nAMD patients in Norway.

Assessing Agreement When Agreement Is Hard to Assess-The Agatston Score for Coronary Calcification.

Method comparison studies comprised simple scatterplots of paired measurements, a 45-degree line as benchmark, and correlation coefficients up to the advent of Bland-Altman analysis in the 1980s. The Agatston score for coronary calcification is based on computed tomography of the heart, and it originated in 1990. A peculiarity of the Agatston score is the often-observed skewed distribution in screening populations.

Organisation of emergency groin hernia surgery across Denmark.

Introduction: A laparoscopic repair is recommended for emergency groin hernias. However, due to increasing sub-specialisation, the expertise in performing a laparoscopic hernia repair may not always be present. Therefore, this study aimed to assess the organisation of Danish hospitals' surgical acute teams in regard to emergency groin hernia care.

Timing of inguinal hernia repair in children varies greatly among hernia surgeons.

Introduction: Due to disagreement on optimal timing of inguinal hernia repair in children, we explored how Danish surgeons plan repair in children at different ages and with different symptoms.

Methods: A validated questionnaire on timing of inguinal hernia repair in children was sent to all surgeons performing paediatric hernia repair in Denmark. The surgeons were asked how they plan repair of asymptomatic reducible, symptomatic reducible, incarcerated, and strangulated hernias in children aged less than 2, 2-12 and 13-18 years.

Therapeutic effects of classic serotonergic psychedelics: A systematic review of modern-era clinical studies.

Objective: To conduct a systematic review of modern-era (post-millennium) clinical studies assessing the therapeutic effects of serotonergic psychedelics drugs for mental health conditions. Although the main focus was on efficacy and safety, study characteristics, duration of antidepressants effects across studies, and the role of the subjective drug experiences were also reviewed and presented.

Method: A systematic literature search (1 Jan 2000 to 1 May 2020) was conducted in PubMed and PsychINFO for studies of patients undergoing treatment with a serotonergic psychedelic.

Variations in open and laparoscopic repair of paediatric inguinal hernia.

Introduction: No recent guidelines exist for surgical treatment of paediatric inguinal hernias. Internationally, there is disagreement about both the preferred approach and the details of the surgical procedure. The aim of this nationwide survey study was to assess variations in Danish surgeons' technique when repairing inguinal hernias in children.

Hamstring muscle fatigue and central motor output during a simulated soccer match.

Purpose: To examine changes in hamstring muscle fatigue and central motor output during a 90-minute simulated soccer match, and the concomitant changes in hamstring maximal torque and rate of torque development.

Method: Eight amateur male soccer players performed a 90-minute simulated soccer match, with measures performed at the start of and every 15-minutes during each half. Maximal torque (Nm) and rate of torque development (RTD; Nm.

Experimental realization of a new type of crystalline undulator.

A new scheme of making crystalline undulators was recently proposed and investigated theoretically by Andriy Kostyuk, concluding that a new type of crystalline undulator would be not only viable, but better than the previous scheme. This article describes the first experimental measurement of such a crystalline undulator, produced by using Si(1-x)Ge(x)-graded composition and measured at the Mainzer Microtron facility at beam energies of 600 and 855 MeV. We also present theoretical models developed to compare with the experimental data.

Direct measurement of the formation length of photons.

We report the first observation of a shoulder in the radiation spectrum from GeV electrons in a structured target consisting of two thin and closely spaced foils. The position of the shoulder depends on the target spacing and is directly connected to the finite formation length of a low-energy photon emitted by an ultrarelativistic electron. With the present setup it is possible to control the separation of the foils on a μm scale and hence measure interference effects caused by the macroscopic dimensions of the formation length.

What determines length of stay after total hip and knee arthroplasty? A nationwide study in Denmark.

Introduction: The goal of this study was (1) to identify logistical and clinical areas of importance for length of stay (LOS) by identifying departments with short and long LOS and to evaluate their set-up; and (2) to evaluate patient satisfaction in relation to LOS.

Materials And Methods: Based on the National Register on Patients in 2004 on LOS following total hip and knee arthroplasty (THA and TKA), departments with short and long LOS were identified. The three departments with the shortest and the three departments with the longest postoperative hospital stay were chosen for evaluation.

[Accelerated versus conventional hospital stay in total hip and knee arthroplasty III: patient satisfaction].

Introduction: The goal of this study was to evaluate patient satisfaction with the hospital stay in relation to the length of stay for patients operated on with primary total hip- and knee-arthroplasty (THA and TKA).

Materials And Methods: According to the National Register on Patients, the three departments with the shortest and the three departments with the longest postoperative hospital stay at the end of 2003 were chosen for evaluation. The patients, operated on with THA or TKA from September 2004 to April 2005, from the selected departments answered a questionnaire regarding satisfaction with elected parts of their stay, co-morbidity, sex and age.

[Accelerated versus conventional hospital stay in total hip and knee arthroplasty II: organizational and clinical differences].

Introduction: The goal of this study was to evaluate hospital stays for patients operated on with primary total hip- and knee-arthroplasty (THA and TKA) in order to identify important logistical and clinical areas for the duration of the hospital stay.

Materials And Methods: According to the National Register on Patients, the three departments with the shortest and the three departments with the longest postoperative hospital stay at the end of 2003 were chosen for evaluation. This took place from late 2004 to mid 2005, and all written material and 25 journals from each department were evaluated, and interviews with the heads of the departments as well as the staff were conducted.

[Length of stay in total hip and knee arthroplasty in Danmark I: volume, morbidity, mortality and resource utilization. A national survey in orthopaedic departments in Denmark].

Introduction: The goal of this study was to evaluate hospital stays for patients operated on with primary total hip- and knee-arthroplasty (THA and TKA) in Denmark in order to focus on the relationship between duration of hospital stay, surgical volume, morbidity and mortality and resources.

Materials And Methods: According to the National Register on Patients in 2004 concerning postoperative length of hospital stay, readmissions (30 days) and mortality (30 and 90 days), departments with short and long hospital stay were compared and potential economical savings were estimated if all departments reduced their stays to match the departments with the shortest hospital stay.

Results: Postoperative hospital stay varied between departments from 4.

[Length of stay after primary total hip and knee arthroplasty in Denmark, 2001-2003].

Introduction: We studied length of stay (LOS) after operation with total hip arthroplasty (THA) and total knee arthroplasty (TKA) in Denmark from 2001 to 2003 to determine whether experiences from published accelerated tracks had been implemented in Denmark, resulting in reduced LOS.

Materials And Methods: Through the National Patient Registry (Landspatientregistret) we obtained information on numbers, sex, age and LOS for each year during the period 2001-2003, inclusive.

Results: In 2003 the male-female sex ratios for THA and TKA were 1:1.