Search results

Filter

Filetype

Your search for "*" yielded 530288 hits

Management of Radioactive Waste in Nuclear Medicine

The use of radionuclides in medicine will inevitably result in various forms of radioactive waste. The waste emerges from the production of radionuclides and radiopharmaceuticals, diagnostic and therapeutic use, and in biomedical research. Radioactive waste can also include spent sealed sources used for calibration, or quality control of different kind of medical equipment. The waste can lie withi

Myocardial Perfusion Imaging

Ischemic heart disease (IHD) is the leading cause of death for men and women worldwide, and it also causes substantial disability and loss of productivity. The diagnosis of IHD involves clinical evaluation, including identifying risk factors, and specific cardiac investigations such as stress testing or coronary artery imaging. The arsenal of imaging modalities to detect and manage patients with I

Ukrainian refugee solidarity mobilization online

According to UNHRC, approximately 5 million refugees fled Ukraine between the 24th of February and the 17th of April 2022. Governments and civil societies all over Europe face a major task of mobilizing resources to address the refugees' welfare needs. This effort is partly dependent upon the mobilization of informal civil society. In this research note, we present preliminary findings on the onli

Does a good story prompt visit intention? Evidence from the augmented reality experience at a heritage site in China

The emergence of digital technology has led researchers, businesses, and entrepreneurs to reflect more on the potential value that Augmented Reality (AR) can play in tourism. Although the relationship between authenticity and travel intention has been examined previously, little is known about how authenticity influences tourist travel intention after an AR experience. To fill this research gap, t

A computational study of the reaction mechanism and stereospecificity of dihydropyrimidinase

Dihydropyrimidinase (DHPase) is a key enzyme in the pyrimidine pathway, the catabolic route for synthesis of β-amino acids. It catalyses the reversible conversion of 5,6-dihydrouracil (DHU) or 5,6-dihydrothymine (DHT) to the corresponding N-carbamoyl-β-amino acids. This enzyme has the potential to be used as a tool in the production of β-amino acids. Here, the reaction mechanism and origin of ster

Cardiac q-space trajectory imaging by motion-compensated tensor-valued diffusion encoding in human heart in vivo

Purpose: Tensor-valued diffusion encoding can probe more specific features of tissue microstructure than what is available by conventional diffusion weighting. In this work, we investigate the technical feasibility of tensor-valued diffusion encoding at high b-values with q-space trajectory imaging (QTI) analysis, in the human heart in vivo. Methods: Ten healthy volunteers were scanned on a 3T sca

Developing non-core regions by establishing new universities

We explore the regional engagement of universities in non-core regions in a Global South context and uncover how new universities form and institutionalize regional ties. Through case studies of five new universities in India, we identify three routes–personal, organizational and brokered–through which new universities form regional ties, and four logics–incrementalism, social responsibility, legi

Ever Smoking is Not Associated with Performed Spirometry while Occupational Exposure and Respiratory Symptoms are

Objective: Despite recommendations, assessment using spirometry or peak expiratory flow is insufficient in the clinical evaluation of suspected obstructive pulmonary disease. The aim was to investigate factors associated with performing spirometry or peak flow expiratory flow assessment. Methods: Randomly selected subjects from the general population aged 50–65 completed a respiratory questionnair

Addressing a century-old hypothesis – do pioneer beetles of Ips typographus use volatile cues to find suitable host trees?

Global warming and more frequent climate extremes have caused bark beetle outbreaks of unprecedented scale of these insects in many conifer forests world-wide. Conifers that have been weakened by drought and heat or damaged by storms are highly susceptible to bark beetle infestation. A large proportion of trees with impaired defences provides good conditions for beetle population build-up of beetl

Exposure to phenoxyacetic acids and glyphosate as risk factors for non-Hodgkin lymphoma– pooled analysis of three Swedish case-control studies including the sub-type hairy cell leukemia

The association between pesticide exposure and non-Hodgkin lymphoma (NHL) including hairy cell leukemia (HCL) was analyzed in a pooled study of three case-control studies. Results on exposure to pesticides were based on 1,425 cases and 2,157 controls participating in the studies. Exposures were assessed by self-administered questionnaires completed as needed by phone. In the pooled univariate anal

Predictive value of kallikrein forms and β-microseminoprotein in blood from patients with evidence of detectable levels of PSA after radical prostatectomy

PURPOSE: To determine whether β-microseminoprotein or any of the kallikrein forms in blood-free, total or intact PSA or total hK2-predict metastasis in patients with evidence of detectable levels of PSA in blood after radical prostatectomy.METHOD: We determined marker concentrations in blood from 173 men treated with radical prostatectomy and evidence of detectable levels of PSA in the blood (PSA

Pilot study : External surface contamination of gemcitabine and 5-fluorouracil on drug packaging

Introduction: Antineoplastic drugs (ADs) are commonly used pharmaceuticals for anticancer treatments. It has previously been shown that the external surface of drug vials frequently is contaminated with ADs. More than a decade ago methods to prevent occupational exposure were introduced by using plastic coverage of the glass vials or packing vials in a secondary plastic container. The aim of the p

Multilingualism and persistence in multiple language learning

For language learners who aspire to become multilingual, commitment involves a personal journey. Defining persistence as a preoccupation with goal-focused action directed to a desired future state and drawing on research from cognitive psychology and the mental time travel paradigm, this article presents an identity-based framework of persistence in multiple language learning. In the framework, pe

High resection rates of colorectal liver metastases after standardized follow-up and multimodal management : an outcome study within the COLOFOL trial

Background: Outcome after colorectal liver metastases (CRLM) resection has improved over time, despite increased resection rates. Hence, it's crucial to identify all patients possible to treat with curative intent. The objectives of this study were to map recurrence pattern, treatment strategy and survival depending on treatment and follow-up strategy. Methods: In the COLOFOL-trial, patients with

The optimal operative protocol to accomplish CO2-EVAR resulting from a prospective interventional multicenter study

Objectives: Carbon dioxide (CO2) angiography for endovascular aortic repair (CO2-EVAR) is used to treat abdominal aortic aneurysms (AAAs), especially in patients with chronic kidney disease or allergy to iodinated contrast medium (ICM). However, some technical issues regarding the visualization of the lowest renal artery (LoRA) and the best quality image through angiographies performed from pigtai

Veno-arterial CO2 difference and lactate for prediction of early mortality after cardiac arrest

Patients admitted to intensive care after cardiac arrest are at risk of circulatory shock and early mortality due to cardiovascular failure. The aim of this study was to evaluate the ability of the veno-arterial pCO2 difference (∆pCO2; central venous CO2 – arterial CO2) and lactate to predict early mortality in postcardiac arrest patients. This was a pre-planned prospective observational sub-study