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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

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

Pseudomonas aeruginosa airway infection is common in cystic fibrosis (CF), a disease also characterized by abundant extracellular DNA (eDNA) in the airways. The eDNA is mainly derived from neutrophils accumulating in the airways and contributes to a high sputum viscosity. The altered environment in the lower airways also paves the way for chronic P. aeruginosa infection. Here, we show that mice wi

OBJECTIVE To evaluate 2 different methods of surveillance and to estimate the incidence of norovirus (NoV) outbreaks in hospitals. DESIGN Prospective observational study. SETTING All 194 hospital wards in southern Sweden during 2 winter seasons (2010-2012). METHODS Clinical surveillance based on outbreak reports of 2 or more clinical cases, with symptom onset within 5 days, was compared with labor

We all learned how to shape letters in different ways; with a pencil or crayon, or maybe by writing in the sand. However, basic handwriting must be understood and accomplished before graduating into the difficult skill of cursive handwriting. Professor Chris Dede relates that technologies can unobtrusively alter how we process information and express ourselves. (2012) Today, the computer is used m

Aim: Screening children with type 1 diabetes for coeliac disease is controversial, because they often appear asymptomatic. Our aim was to establish whether active screening should be recommended. Methods: This study focused on 22 children whose coeliac disease was detected by serological screening during diabetes surveillance and 498 children diagnosed because of a clinical suspicion. We compared

The film "A Kind of Friend, Seven Episodes about Friendship" is a video essay that also is apart of the artistic research project "Microhistories"

The author spent seven years teaching and tutoring basic media use to liberal arts students. During this time, the author noted that liberal arts students differ in their use of technology, both in basic technical comprehension and computer skills levels, as compared to technical and computer science students. Different pedagogical approaches for the liberal arts students for the period of 2003-20

We consider conditional estimation in two-stage sample size adjustable designs and the consequent bias. More specifically, we consider a design which permits raising the sample size when interim results look rather promising, and which retains the originally planned sample size when results look very promising. The estimation procedures reported comprise the unconditional maximum likelihood, the c

Although hematopoietic stem cells (HSCs) have traditionally been thought to possess the ability to give rise to all the mature cell types in the hematopoietic system, this conception of hematopoiesis was based on evaluation of hematopoietic output from large numbers of HSCs using transplantation models. More recent studies evaluating HSCs at the clonal or near-clonal level, both in transplantation

Objective Recently, metabolomics studies have suggested that the neurotransmitter ã-amino butyric acid (GABA) may modulate C. difficile infection (CDI) pathogenesis. In the present study, we investigated the association between GABA-modulating pharmaceuticals and CDI development. Methods In July-December 2013, we performed a matched, retrospective case-control study in Skåne county, Sweden, to ass