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Learning through Evaluation: A Tentative Evaluative Scheme for Sustainability Transition Experiments

Transitions towards sustainability are urgently needed to address the interconnected challenges of economic development, ecological integrity, and social justice, from local to global scales. Around the world, collaborative science-society initiatives are forming to conduct experiments in support of sustainability transitions. Such experiments, if carefully designed, provide significant learning o

Tetraquark Production in Hadronic Collisions

We develop a formalism to study the tetraquark production in hadronic collisions. We focus on double parton scattering and formulate a version of the color evaporation model for the production of the T4c tetraquark, a state composed by the quarks. We find that the production cross section grows rapidly with the collision energy and the T4c might be observable at LHC energies.

Choice-justifications after allocating resources in helping dilemmas

How do donors reason and justify their choices when faced with dilemmas in a charitable context? In two studies, Swedish students were confronted with helping dilemmas based on the identifiable victim effect, the proportion dominance effect and the ingroup effect. Each dilemma consisted of two comparable charity projects and participants were asked to choose one project over the other. They were t

Exciton Structure and Energy Transfer in the Fenna-Matthews-Olson Complex

The Fenna-Matthews-Olson (FMO) photosynthetic complex found in green sulfur bacteria has over the last decades been one of the favorite "model" systems for biological energy transfer. However, even after 40 years of studies, quantitative knowledge about its energy-transfer properties is limited. Here, two-dimensional electronic spectroscopy with full polarization control is used to provide an accu

The first 6 weeks of recovery after primary total hip arthroplasty with fast track : A diary study of 94 patients

Background and purpose — Fast-track protocols have been introduced worldwide to improve the recovery after total hip arthroplasty (THA). These protocols have reduced the length of hospital stay (LOS), and THA in an outpatient setting is also feasible. However, less is known regarding the first weeks after THA with fast track. We examined patients’ experiences of the first 6 weeks after hospital di

Palliative care during the final week of life of older people in nursing homes : A register-based study

Objective:: Our aim was to explore the presence of symptoms, symptom relief, and other key aspects of palliative care during the final week of life among older people residing in nursing homes. Method:: Our study employed data from the Swedish Palliative Care Register on all registered individuals aged 60 and older who had died in nursing homes during the years 2011 and 2012. Variables pertaining

Imaging of the Lungs in Organ Donors and its Clinical Relevance : A Retrospective Analysis

PURPOSE:: The aim of the study was to retrospectively evaluate the diagnostic imaging that potential lung donors undergo, the reader variability of image interpretation and its relevance for donation, and the potential information gained from imaging studies not primarily intended for lung evaluation but partially including them. MATERIALS AND METHODS:: Bedside chest radiography and computed tomog

On the origin of myeloid-derived suppressor cells

Myeloid-derived suppressor cells (MDSCs) have a strong immunosuppressive character that allows them to regulate immune responses and hinder overt inflammatory responses. In cancer, this leads to tumor immune evasion and disease progression. MDSCs come in at least two forms: monocytic (Mo-MDSCs) and granulocytic (G-MDSCs). The classical definition of MDSCs as immature myeloid cells blocked from dif

A century of trends in adult human height

Being taller is associated with enhanced longevity, and higher education and earnings. We reanalysed 1472 population-based studies, with measurement of height on more than 18.6 million participants to estimate mean height for people born between 1896 and 1996 in 200 countries. The largest gain in adult height over the past century has occurred in South Korean women and Iranian men, who became 20.2

Magnetic resonance imaging for verifying hip fracture diagnosis why, when and how?

Introduction: Hip fractures are commonly diagnosed by plain radiography. When a patient presents with negative radiographs and high clinical suspicion of fracture, guidelines recommend proceeding with magnetic resonance imaging (MRI) to diagnose the patient. The aim of this study was to assess the use of MRI in diagnosing hip fractures following trauma to the hip and describe clinical outcome afte

Seasonal fluctuation in the secretion of the antioxidant melatonin is not associated with alterations in sperm DNA damage

A high sperm DNA fragmentation index (DFI) is associated with reduced fertility. DFI is influenced by the balance between reactive oxygen species and antioxidants. A circannual variation in melatonin, an antioxidant and free radical scavenger, could thus impact semen quality and fertility. The association between the major melatonin metabolite, urine 6-sulfatoxymelatonin (aMT6s), and DFI was analy

Class : Feminist and cultural perspectives

There is hardly any discussion of class that does not in some way relate to the theories of Marx and Weber. So profound was the impact of their ideas, that their writings are often perceived as the only original and most reliable interpretations of class society. But Marx and Weber were neither the first, nor last, to talk about class and they did so based on the specific conditions prevalent in t