Gas rich galaxies from the FIGGS survey

The FIGGS (Faint Irregular Galaxy GMRT Survey) is aimed at creating a multi-wavelength observational data base for a volume limited sample of the faintest gas rich galaxies. In this paper we discuss two very gas rich galaxies that were observed as part of the FIGGS survey, viz. NGC 3741 and And IV. These galaxies are unusual in that they have extremely extended gas disks and very high ratios of dark to luminous matter. The very extended HI disks provide an unique opportunity to trace the extended distribution of dark matter around faint galaxies. We compare the baryon fraction of these galaxies with a sample of galaxies with well measured rotation curves and discuss whether extremely gas rich dwarf galaxies have abnormally small baryon fractions.Comment: 5 Pages, 4 Figures. To be published in the proceedings of "Galaxies in the Local Volume", ed. B. Koribalski, H. Jerje

Exploring the Experiences of Bangladeshi Parents Whose Children Have Been Diagnosed with Autism

This research sought to explore the subjective experiences of Bangladeshi parents of a child with a diagnosis of autism. The study was underpinned by a social constructivist research perspective, an exploratory design and a narrative methodology. Unstructured interviews were used with five Bangladeshi participants who were asked to share their experiences and perceptions. Participants’ interviews were ‘restoryed’ using Clandinin & Connelly’s (2000) Three-Dimensional Framework. This offered a rich and in-depth insight into parental experiences. In the second phase of analysis, narrative themes and sub-themes that featured across parental stories were discussed. The findings indicate that participants are not only navigating and making sense of their child’s diagnosis themselves but also facilitating the understanding of extended family members. Participants employed multiple and varied explanatory models that suited their context. Not having a word in Bengali for autism was a barrier to sharing the diagnosis with Bengali speaking family members; in addition, the variation in the presentation of autism also created mistrust in the label. The lack of intergenerational understanding was identified by participants as a key barrier, however, all participants expressed a desire for raising awareness in the Bengali community and saw this as a way to address perceived difficulties. Having a child with a diagnosis of autism required all participants to advocate for their child in the domestic sphere, sometimes challenging culturally expected roles in the wider family and school context. The research illustrates the complexity of experiences associated with being a Bangladeshi parent of a child with autism. The thesis concludes by discussing the implications for Educational Psychology practice

Demarcation and definition: explicating the meaning and scope of ‘decolonisation’ in the social and political sciences

Decolonisation of the curriculum is a burgeoning yet controversial project of radical change, gaining slow but steady traction in higher education politics departments across the country. At its heart is the acknowledgement and systematic unravelling of colonial and imperial practices in the UK university system. This article pins down what decolonisation is and is not, highlighting the barriers and tentative opportunities to effective decolonisation work. This is discussed in the context of the structural constraints that critical scholars of race — particularly those at the intersection of marginalised racial and gender identities — work against in the academy

Decolonising the curriculum

Social science courses are increasingly coming under fire for the over-representation of white male authors and theorists. Campaigns such as ‘Why Is My Curriculum White?’ call into question the ‘Dead White Men’ approach to teaching political theory, where few female and theorists of colour are included on reading lists. The ways in which knowledge is produced, propagated and perpetuated through White, Western perspectives also spawned the related campaign ‘Why Is My Professor White?’ These campaigns are taking place against a backdrop of immense changes in the higher education sector, which earlier this year saw thousands of university academic staff go on strike over pensions, and a spate of anti-casualisation campaigns crop up at universities across the country. Changes such as these disproportionately affect women and ethnic minorities because of the extent to which we are subject to structural inequalities. Ethnic and gender penalties are present at every academic pay grade. Women are more likely to be on casual, part-time contracts. And ethnic minorities still constitute a minor proportion of senior academic and management staff in most universities. As women of colour (WOC) in the academy – emerging scholars of race who have yet to begin permanent academic roles – the decolonisation campaigns hold personal as well as professional resonance for us. They fuel our desire to impart real change in the way politics is taught in the United Kingdom and to help make a space for scholars like us. However, this desire must sit alongside the realities of our future in the academy. We both started out PhDs in the mid-2010s with the hope of becoming critical and radical but essentially fully fledged and secure academic employees. The structural changes the academy is undergoing not only undermines the work we do to represent the work of subaltern scholars in the field of politics but makes us question our ability as well as our desire to survive and thrive as academics

Restrained Shrinkage of Fly Ash Based Geopolymer Concrete and Analysis of Long Term Shrinkage Prediction Models

The research presented in this manuscript describes the procedure to quantify the restrained shrinkage of geopolymer concrete (GPC) using ring specimen. Massive concrete structures are susceptible to shrinkage and thermal cracking. This cracking can increase the concrete permeability and decrease the strength and design life. This test is comprised of evaluating geopolymer concrete of six different mix designs including different activator solution to fly ash ratio and subjected to both restrained and free shrinkage. Test results obtained from this experimental setup was plotted along with the available empirical equation to observe the shrinkage strain of GPC and a model was suggested to predict the shrinkage strain of GPC. It was found from this study that along with activator solution to fly ash ratio the final compressive strength of GPC plays an important role on shrinkage strai

The 2022 Conservative leadership campaign and post-racial gatekeeping

The Conservative party leadership contest that took place in the summer of 2022 was unprecedented for, amongst other things, its level of ethnic diversity. This paper argues that this doesn’t indicate a sharp, contemporary liberal turn within the party. It argues the opposite, in fact, that recent senior ethnic minority cabinet members and leadership contenders represent some of the party’s most right-wing ideologues in years. Through critical discourse analysis of narrative related to race, borders, immigration and the ‘nation’ in selected media appearances made by ethnic minority leadership contenders Rishi Sunak, Sajid Javid, Nadhim Zahawi, Suella Braverman and Kemi Badenoch as part of their campaigns, this paper positions these individuals – in distinct yet interrelated ways – as ethnic minority post-racial gatekeepers, continuing yet intensifying a long trend within the Conservative party of the reproduction of the racial status quo legitimised through nominal ethnic minority representation

Diagnosing nutrient limitations to lentil and chickpea in acid soils of Bangladesh

Lentil and chickpea are dietary staple crops in Bangladesh but their local production has been markedly declining in recent decades, mainly due to competition with irrigated cereals. However, in northern Bangladesh, an additional problem to their cultivation is acid surface soil conditions, potentially causing deficiencies of molybdenum (Mo) and boron (B), and toxicities of aluminium (Al), manganese (Mn) or hydrogen ion (H+). In an attempt to rehabilitate lentil and chickpea in northern Bangladesh on-farm trials were conducted to determine the response of these crops to Mo, B, and lime and Rhizobium inoculation. Despite earlier reports of widespread B deficiency in the region a response to B was only found in chickpea. Responses to Mo and Rhizobium, applied through seed priming, were found. There were responses to lime even after B, Mo, and Rhizobium had been applied, suggesting Al toxicity. Recommendations for fertilizer requirement, to fit into an overall integrated crop management package for lentil and chickpea, were modified accordingly

Near-infrared light increases ATP, extends lifespan and improves mobility in aged Drosophila melanogaster.

Ageing is an irreversible cellular decline partly driven by failing mitochondrial integrity. Mitochondria accumulate DNA mutations and reduce ATP production necessary for cellular metabolism. This is associated with inflammation. Near-infrared exposure increases retinal ATP in old mice via cytochrome c oxidase absorption and reduces inflammation. Here, we expose fruitflies daily to 670 nm radiation, revealing elevated ATP and reduced inflammation with age. Critically, there was a significant increase in average lifespan: 100-175% more flies survived into old age following 670 nm exposure and these had significantly improved mobility. This may be a simple route to extending lifespan and improving function in old age

Assessing the knowledge on periconceptional use of folic acid among women visiting a tertiary care hospital in South India

Background: Periconceptional folic acid supplementation is an essential element for the prevention of neural tube defects. Neural tubes defects are congenital malformations affecting the brain and spinal cord associated with substantial mortality, morbidity, disability, and psychological impact. Mere awareness about its use and benefits can prevent a major proportion of these complications. Hence the present study is designed to assess the knowledge of use of periconceptional folic acid among women.Methods: This was a descriptive cross-sectional study conducted at Kempegowda institute of medical sciences, Bengaluru. 250 women attending the outpatient department, consenting to participate in the study were assessed about their knowledge on periconceptional use of folic acid by a self-designed questionnaire and the responses were analysed.Results: Out of 250 women, 194 (77.6%) were aware of folic acid. Among the 194 women 151 (77.83%) had learnt about it only after the diagnosis of pregnancy. The major source of information were health care providers in 182 (93.8%) women. The knowledge that it prevented neural tube defects was known to 79 out of 194 women. However only 18 (9.27%) women took folic acid periconceptionally.Conclusions: Among the study population the level of knowledge on periconceptional use of folic acid was low. The major source of information about the use of folic acid was from health care workers during early pregnancy. Periodic health education, awareness programs, periconceptional counselling at individual level can help in optimizing the intake and preventing the burden of neural tube defects

Effectiveness of commercial versus homemade sports drinks on fluid balance and exercise capacity during high-intensity intermittent exercise

Commercial sports drinks are used widely by athletes involved in high-intensity intermittent (HII) exercise. However, little has been reported on their relative effectiveness compared to simple homemade drink formulations. The purpose of this study was to investigate the effects of different sports drink formulations (commercial v homemade), water and no drink on fluid balance and exercise capacity during HII exercise. Twelve trained men (age: 27 ± 2.1 y) performed a 90-min HII running protocol designed to simulate activity experienced during a football match. The protocol was arranged in six 15-min stages where running speeds ranged between 55% and 120% of VO2max. The HII protocol included half-time and a run to fatigue post 90 min. Using a single-blind, randomized, cross-over design, participants ingested a preload of 5 mlkg-1 10 min before HII exercise and 3 mlkg-1 every 15 min of either Isostar® (ISO), a homemade sports drink (CHO), placebo (P) or no drink (ND). Blood lactate (Hla), blood glucose (Bgluc), heart rate (HR) and ratings of perceived exertion (RPE) were measured before, during (every 15 min) and after the 90-min HII protocol. Changes in plasma volume were measured at half-time and post 90 min. Sweat rate and fluid balance were calculated post each trial. Time to fatigue (TTF) was recorded at exhaustion. In the ND trial, TTF decreased by approximately 17%, 28% and 43% compared to P, CHO and ISO, respectively (p0.05). No differences were noted in HLa, RPE, PV or SR between the trials (p>0.05) but there were significant effects of time (p<0.05). Bgluc peaked at 30 minutes in ISO and CHO, but dropped by ~27% in ISO and by ~30% in CHO after half time. Absence of fluid ingestion surprisingly had no significant effect on altering plasma volume or decreasing sweat rate despite causing noticeable decreases in exercise capacity. The homemade drink improved exercise capacity in a similar manner to that of the commercial drink, but neither sports drink achieved superior hydration compared to water. Ingestion of exogenous carbohydrate through sports drink consumption caused an exercise-induced glycemic response when exercise was restarted after half-time. This decline in blood glucose after half-time appears to be marginally attenuated in P trial. A possible suggestion for team sports could be to drink water rather than sports drink prior to half-time period