Manchester Metropolitan University

About: Manchester Metropolitan University is a education organization based out in Manchester, Manchester, United Kingdom. It is known for research contribution in the topics: Population & Context (language use). The organization has 5435 authors who have published 16202 publications receiving 442561 citations. The organization is also known as: Manchester Polytechnic & MMU.

Trace Metals as Biomarkers for Eumelanin Pigment in the Fossil Record

Abstract: Well-preserved fossils of pivotal early bird and nonavian theropod species have provided unequivocal evidence for feathers and/or downlike integuments. Recent studies have reconstructed color on the basis of melanosome structure; however, the chemistry of these proposed melanosomes has remained unknown. We applied synchrotron x-ray techniques to several fossil and extant organisms, including Confuciusornis sanctus, in order to map and characterize possible chemical residues of melanin pigments. Results show that trace metals, such as copper, are present in fossils as organometallic compounds most likely derived from original eumelanin. The distribution of these compounds provides a long-lived biomarker of melanin presence and density within a range of fossilized organisms. Metal zoning patterns may be preserved long after melanosome structures have been destroyed.

Control of muscle size during disuse, disease, and aging

Abstract: Skeletal muscle is a highly plastic tissue. For example, muscle hypertrophies during strength training and increases its oxidative capacity in response to endurance training. Conditions associated with disuse, however, are also accompanied by adaptations, of which atrophy and a slow-to-fast transition are most prominent. Fast and slow muscles respond differently to disuse. The different response of muscle to different models of disuse reveals that loading is most important, but that also activity level, neurotrophic factors, and ageing play a part in determining the mass, morphology, contractile properties, and fatigability of a muscle. Muscle loss during disuse is a result, at least in part, of apoptosis. Finally, skeletal muscle wasting and remodelling during ageing and chronic disorders, such as chronic heart failure and chronic obstructive pulmonary disease, are not entirely attributable to disuse, but are also related to secondary consequences of the disease, most notably inflammation. Besides activating other pathways, we present evidence that inflammation during ageing and chronic disorders causes muscle wasting via alterations in abundance and/or activity of muscle specific transcription factors and induction of apoptosis, and that systemic inflammation rather than disuse is the primary cause of muscle wasting during ageing and chronic disorders.

Real-world incidence and prevalence of low back pain using routinely collected data

Abstract: Low back pain (LBP) is a common health problem among adults of working age population, and its prevalence or incidence increases with increasing in age. The purpose of this review was to examine the real-world prevalence or incidence of LBP. A systematic review of the literature was conducted in accordance to the PRISMA guideline. Allied and Complementary Medicine Database, Cumulative Index of Nursing and Allied Health Literature, MEDLINE, SportDiscuss and Scopus electronic databases were searched using specifically developed search strategies to identify studies using patients’ electronic medical records published in English up to February 2019. The quality of the included studies was assessed using a tool that consists of ten items addressing a risk of bias. The search yielded 756 published studies, of which 13 were deemed relevant and were included in this review. The included studies reported incidence or prevalence data from Canada, United States of America (USA), Sweden, Belgium, Finland, Israel, and Netherlands. All the included studies were assessed to be methodologically sound (low risk of bias). The prevalence and incidence of LBP ranged from 1.4 to 20.0% and 0.024–7.0%, respectively. Three studies reported that the Odds of LBP in male patient was higher than their female counterparts (odds ratio > 1; range 1.11–17.29). Nine studies identified the risk factors of LBP to be age, sex, and race. The remaining four studies also listed high intensity of physical activity, high spinal load, lifting, bending, and twisting as the risk factors for LBP. The results of this study highlighted there is a substantial difference within studies that estimated the prevalence and incidence of LBP. This finding could inform healthcare policy makers to critically examine the data sources of prevalence and incidence studies; this in return might help for resource allocation to manage the condition. PROSPERO registration number: CRD42017078598, https://www.crd.york.ac.uk/prospero/ .

Constructivism in Classroom: Theory into Practice

Abstract: (1999). Constructivism in Classroom: Theory into Practice. Journal of Science Teacher Education: Vol. 10, No. 2, pp. 93-106.

Community, work, and family in times of COVID-19

Abstract: We are living in challenging and uncertain times. At the time this article was edited, there were already more than 2.4 million confirmed cases of the corona virus (COVID-19) (World Health Organiza...