Journal writing within deaf education

Writing has generally always been a source of resentment, aversion and unhappiness for deaf people. It shouldn\u27t be. When one mentions an English writing course, one would involuntarily envision a long class of boring lectures on parts of speech, sentence structures and know their written paper will return all bloody from those red markers. This has to change, the unconscious fear of English within Deaf people affects their academic, personal and social growth

Female reproductive strategy predicts preferences for sexual dimorphism in male faces

The aim of the current studies was to test an assumption that variation in female preferences for sexually dimorphic male facial characteristics reflects strategic optimisation of investment in offspring. A negative relationship was predicted between ideal number of children and preferences for masculine male face shapes, as the benefits of securing paternal investment should outweigh the benefits of securing good genes as the costs of raising offspring increase. In Study 1 desired number of children and preferences for masculine face shapes were compared in a sample of female students. In study 2, the prediction was tested in a sample with a wider age profile while controlling for relationship status. Preferences for explicit partner characteristics were also assessed. The prediction was supported: women who desired a higher number of children preferred more feminine male face shapes and ranked cues to investment of parental care over cues to immunocompetence in a partner more highly than those who desired fewer children. Results indicate that female mate preferences vary with reproductive strategy and support assumptions that preferences for feminine male faces reflect preferences for “good dads”

Archiving “sensitive” social media data: ‘In Her Shoes’, a case study

Social media play an increasingly significant role in activist and social movements around the globe. Archiving social media is a relatively new phenomenon and an area which needs greater clarity, understanding and uniformity. When it comes to archiving and cataloguing sensitive social media collections, such as personal abortion stories, the process is even more ambiguous. The campaign to repeal the Eighth Amendment (a constitutional ban on abortion) in Ireland saw many such stories shared through online media, particularly in the lead-up to the 2018 referendum. Using the ‘In Her Shoes: Women of the Eighth’ Facebook dataset as a case study, this article will explore the ethical issues of archiving sensitive data from Facebook. It will describe challenges to archiving social media data, incorporating issues such as copyright and user consent to archiving. Many stories in the collection covered sensitive issues such as intimate partner violence, suicide because of unplanned pregnancy and attempts to bring on miscarriage by harmful and dangerous means. We outline some of the actions we undertook to address these challenges, including: developing a Stakeholder Advisory Forum, publishing an Ethical Protocol, developing a self-care protocol for researchers, and establishing a Notice and Action Policy. We suggest these actions will contribute to a best-practice framework for archiving sensitive social media data

Exploring Cation-Anion Redox Processes in One-Dimensional Linear Chain Vanadium Tetrasulfide Rechargeable Magnesium Ion Cathodes.

For magnesium ion batteries (MIBs) to be used commercially, new cathodes must be developed that show stable reversible Mg intercalation. VS4 is one such promising material, with vanadium and disulfide anions [S2]2- forming one-dimensional linear chains, with a large interchain spacing (5.83 Å) enabling reversible Mg insertion. However, little is known about the details of the redox processes and structural transformations that occur upon Mg intercalation and deintercalation. Here, employing a suite of local structure characterization methods including X-ray photoelectron spectroscopy (XPS), V and S X-ray absorption near-edge spectroscopy (XANES), and 51V Hahn echo and magic-angle turning with phase-adjusted sideband separation (MATPASS) NMR, we show that the reaction proceeds via internal electron transfer from V4+ to [S2]2-, resulting in the simultaneous and coupled oxidation of V4+ to V5+ and reduction of [S2]2- to S2-. We report the formation of a previously unknown intermediate in the Mg-V-S compositional space, Mg3V2S8, comprising [VS4]3- tetrahedral units, identified by using density functional theory coupled with an evolutionary structure-predicting algorithm. The structure is verified experimentally via X-ray pair distribution function analysis. The voltage associated with the competing conversion reaction to form MgS plus V metal directly is similar to that of intermediate formation, resulting in two competing reaction pathways. Partial reversibility is seen to re-form the V5+ and S2- containing intermediate on charging instead of VS4. This work showcases the possibility of developing a family of transition metal polychalcogenides functioning via coupled cationic-anionic redox processes as a potential way of achieving higher capacities for MIBs.S. D. acknowledges DST Overseas Visiting Fellowship in Nano Science and Technology, Government of India (July 2018− June 2019) and EPSRC Programme Grant (EP/M009521/1) for fellowships and funding. This work used the ARCHER UK National Super-computing Service (http://www.archer.ac.uk). This research used resources of the Center for Functional Nanomaterials, which is a U.S. DOE Office of Science Facility, and the Scientific Data and Computing Center, a component of the Computational Science Initiative, at Brookhaven National Laboratory under Contract No. DE-SC0012704. The XPS data collection was performed at the EPSRC National Facility for XPS ("HarwellXPS"), operated by Cardiff University and UCL, under Contract No. PR16195. via our membership of the UK's HEC Materials Chemistry Consortium, which is funded by EPSRC (EP/L000202)

Insecticidal effects of deltamethrin in laboratory and field populations of Culicoides species: how effective are host-contact reduction methods in India?

BACKGROUND: Bluetongue virus (BTV) is transmitted by Culicoides biting midges and causes bluetongue (BT), a clinical disease observed primarily in sheep. BT has a detrimental effect on subsistence farmers in India, where hyperendemic outbreaks impact on smallholdings in the southern states of the country. In this study, we establish a reliable method for testing the toxic effects of deltamethrin on Culicoides and then compare deltamethrin with traditional control methods used by farmers in India. RESULTS: Effects of deltamethrin were initially tested using a colonised strain of Culicoides nubeculosus Meigen and a modified World Health Organisation exposure assay. This method was then applied to field populations of Culicoides spp. in India. The field population of C. oxystoma in India had a greater LC50 (0.012 ± 0.009%) for deltamethrin than laboratory-reared C.nubeculosus (0.0013 ± 0.0002%). Exposure of C. nubeculosus to deltamethrin at higher ambient temperatures resulted in greater rates of knockdown but a lower mortality rate at 24 h post-exposure. Behavioural assays with C. nubeculosus in WHO tubes provided evidence for contact irritancy and spatial repellence caused by deltamethrin. The field experiments in India, however, provided no evidence for repellent or toxic effects of deltamethrin. Traditional methods such as the application of neem oil and burning of neem leaves also provided no protection. CONCLUSIONS: Our study demonstrates that field-collected Culicoides in India are less susceptible to deltamethrin exposure than laboratory-bred C. nubeculosus and traditional methods of insect control do not provide protection to sheep. These low levels of susceptibility to deltamethrin have not been recorded before in field populations of Culicoides and suggest resistance to synthetic pyrethrioids. Alternative insect control methods, in addition to vaccination, may be needed to protect Indian livestock from BTV transmission