8383 research outputs found
Sort by
Purification of Propylene and Ethylene by a Robust Metal–Organic Framework Mediated by Host–Guest Interactions
Get PDFFrom Wiley via Jisc Publications RouterHistory: received 2021-03-19, pub-electronic 2021-06-07Article version: VoRPublication status: PublishedFunder: Engineering and Physical Sciences Research Council; Id: http://dx.doi.org/10.13039/501100000266; Grant(s): EP/I011870, EP/R00661X/1, EP/S019367/1, EP/P025021/1, EP/P025498/1Funder: European Research Council; Id: http://dx.doi.org/10.13039/501100000781; Grant(s): 742401Abstract: Industrial purification of propylene and ethylene requires cryogenic distillation and selective hydrogenation over palladium catalysts to remove propane, ethane and/or trace amounts of acetylene. Here, we report the excellent separation of equimolar mixtures of propylene/propane and ethylene/ethane, and of a 1/100 mixture of acetylene/ethylene by a highly robust microporous material, MFM‐520, under dynamic conditions. In situ synchrotron single crystal X‐ray diffraction, inelastic neutron scattering and analysis of adsorption thermodynamic parameters reveal that a series of synergistic host–guest interactions involving hydrogen bonding and π⋅⋅⋅π stacking interactions underpin the cooperative binding of alkenes within the pore. Notably, the optimal pore geometry of the material enables selective accommodation of acetylene. The practical potential of this porous material has been demonstrated by fabricating mixed‐matrix membranes comprising MFM‐520, Matrimid and PIM‐1, and these exhibit not only a high permeability for propylene (≈1984 Barrer), but also a separation factor of 7.8 for an equimolar mixture of propylene/propane at 298 K
Reduction of wave-induced pitch motion of a semi-sub wind platform by balancing heave excitation with pumping between floats
Get PDFFrom Springer Nature via Jisc Publications RouterHistory: received 2020-12-06, registration 2021-04-16, accepted 2021-04-16, pub-print 2021-05, pub-electronic 2021-05-10, online 2021-05-10Publication status: PublishedFunder: H2020 European Research Council (); Grant(s): Marinet2 Project M4WW (no 1179)Abstract: It is desirable to control pitch motion of semi-submersible wind platforms to reduce turbine hub acceleration and increase structural fatigue life. This is achieved by balancing the moment on the platform due to heave float excitation by generating a differential internal head of water between the floats though a pump. This is demonstrated with an experimentally validated linear diffraction-radiation-drag model of an idealised platform. Different scales of platform are considered corresponding to 5, 10 and 20 MW turbines. The pitch angles and hub accelerations generally reduce as scales increase. Pumping reduces hub accelerations by up to about 40% for larger sea states. The power required for pumping would be small with a hybrid pump also operating as a turbine to store energy for the pumping operation. Without storage the power requirement is still small relative to the turbine capacity except for very high wind speeds
Pauline Slave Welfare Ethics in Historical Context: An Equality Analysis
No full textWhile many assume that human equality is incompatible with slavery, equality theorists argue that any equality claim must be further defined. They also claim that every coherent ethical system presupposes an implied equality and inequality when it requires “identical” treatment for those it considers similar enough and “different” treatment for others it views as dissimilar. This thesis deploys a heuristic equality analysis to distinguish between the different kinds of equality that may be implied by a text’s ethical reasoning—a text’s equality ethic. It distinguishes between an egalitarianism that seeks to eliminate certain differences between persons; the “identical” treatment of “numerically-equal” persons regardless of those differences; the “variable” treatment, proportionate to a particular attribute, of persons who share that attribute to a variable degree; and “different” treatment between persons who are deemed dissimilar because of those differences.
The equality analysis in this thesis on slavery compares how slaves and free persons were treated in antiquity. It demonstrates how Pauline scholarship on slavery neither defines nor consistently reasons about equality. While scholarship has stressed Pauline exhortations for slave obedience, the thesis focuses on scholarship’s neglect of Paul’s exhortations for slave welfare. The thesis reconstructs the equality reasoning of Paul’s possible ethical sources—Aristotelian natural slavery, Seneca’s slave welfare, the Torah’s slave welfare texts (Exod 21; Deut 5:12–15; 15:12–18; 21:10–17; 23:15–16; 24:7; Lev 19:20–22; 25), and Philo. The thesis reconstructs a Jewish numerically equal treatment ethic between slave and free that imitates Yahweh’s impartiality, and demonstrates its best conceptual fit for Paul’s slave welfare ethics.
The thesis justifies Paul’s inclusion of the slavery pair in his unification formula of Gal 3:28 and argues that Paul’s unification formulae (also 1 Cor 12:13; Col 3:11) imply the numerically equal treatment of their ethnic and slavery pairs. The thesis argues that Paul’s exhortations for slave welfare in the Colossian and Ephesian Haustafeln (Col 4:1; Eph 6:9) place the Jewish numerically equal treatment and imitation ethic into a Christological framework that urges slave-masters to imitate how God is impartial between slave and free in their treatment of their slaves. The thesis also argues that Paul’s twofold purpose in composing his epistle to Philemon was to urge Onesimus’s inclusion within Philemon’s pre-existing slavery ethos, which was already compliant with Paul’s ethics on slave welfare, and for Philemon to send Onesimus back to Paul. Paul did not need to specify a new slave welfare ethic for Philemon to adopt
Underlying thinking pattern profiles predict parent-reported distress responses in autism spectrum disorder
Get PDFThe final publication is available at Springer via https://doi.org/10.1007/s10803-021-05092-8Appreciating autistic neurodiversity is important when supporting autistic people who experience distress. Specifically, use of a profiling model can reveal less visible autistic differences, including strengths and abilities. Binary logistic regressions showed that the likelihood of extreme distress responses could be interpreted based on parent-reported autistic thinking pattern profiles for 140 young people. Perspective-taking (specifically empathy), extreme demand avoidance, and over-sensory sensitivity each contributed to the combined regression models. From the clinical perspective of autism as a multi-dimensional and inter-connected construct, there may be implications for planning support and building positive self-understanding. Individually tailored adjustments and support strategies may be identified more easily after delineating variables found across four core aspects: sensory coherence, flexible thinking, perspective-taking, and regulation.
Keywords: Autism; Distress; Profile; Strengths; Thinking patterns
The Origin of Catalytic Benzylic C−H Oxidation over a Redox‐Active Metal–Organic Framework
Get PDFFrom Wiley via Jisc Publications RouterHistory: received 2021-02-15, rev-recd 2021-03-27, pub-electronic 2021-06-04Article version: VoRPublication status: PublishedFunder: Engineering and Physical Sciences Research Council; Id: http://dx.doi.org/10.13039/501100000266; Grant(s): EP/I011870Funder: H2020 European Research Council; Id: http://dx.doi.org/10.13039/100010663; Grant(s): 742401Abstract: Selective oxidation of benzylic C−H compounds to ketones is important for the production of a wide range of fine chemicals, and is often achieved using toxic or precious metal catalysts. Herein, we report the efficient oxidation of benzylic C−H groups in a broad range of substrates under mild conditions over a robust metal–organic framework material, MFM‐170, incorporating redox‐active [Cu2II(O2CR)4] paddlewheel nodes. A comprehensive investigation employing electron paramagnetic resonance (EPR) spectroscopy and synchrotron X‐ray diffraction has identified the critical role of the paddlewheel moiety in activating the oxidant tBuOOH (tert‐butyl hydroperoxide) via partial reduction to [CuIICuI(O2CR)4] species
Publisher Correction: Methylation deficiency disrupts biological rhythms from bacteria to humans
Get PDFFrom Springer Nature via Jisc Publications RouterHistory: registration 2020-05-27, pub-electronic 2020-06-04, online 2020-06-04, collection 2020-12Publication status: PublishedAn amendment to this paper has been published and can be accessed via a link at the top of the paper
Prediction of one repetition maximum using reference minimum velocity threshold values in young and middle-aged resistance-trained males
Get PDFThis study determined the accuracy of different velocity-based methods when predicting one-repetition maximum (1RM) in young and middle-aged resistance-trained males. Methods: Two days after maximal strength testing, 20 young (age 21.0 ± 1.6 years) and 20 middle-aged (age 42.6 ± 6.7 years) resistance-trained males completed three repetitions of bench press, back squat, and bent-over-row at loads corresponding to 20–80% 1RM. Using reference minimum velocity threshold (MVT) values, the 1RM was estimated from the load-velocity relationships through multiple (20, 30, 40, 50, 60, 70, and 80% 1RM), two-point (20 and 80% 1RM), high-load (60 and 80% 1RM) and low-load (20 and 40% 1RM) methods for each group. Results: Despite most prediction methods demonstrating acceptable correlations (r = 0.55 to 0.96), the absolute errors for young and middle-aged groups were generally moderate to high for bench press (absolute errors = 8.2 to 14.2% and 8.6 to 20.4%, respectively) and bent-over-row (absolute error = 14.9 to 19.9% and 8.6 to 18.2%, respectively). For squats, the absolute errors were lower in the young group (5.7 to 13.4%) than the middle-aged group (13.2 to 17.0%) but still unacceptable. Conclusion: These findings suggest that reference MVTs cannot accurately predict the 1RM in these populations. Therefore, practitioners need to directly assess 1RM
Reducing the burden of orthodontic care for children with clefts: evaluating the effectiveness of pre-alveolar bone graft orthodontics in unilateral non-syndromic cleft patients (PABO study)— A study protocol for a multicentric randomised controlled trial
Get PDFFrom Springer Nature via Jisc Publications RouterHistory: received 2021-05-12, registration 2021-08-02, accepted 2021-08-02, pub-electronic 2021-08-28, online 2021-08-28, collection 2021-12Publication status: PublishedFunder: Science and Engineering Board, Department of Science and Technology, Govt. of India; Grant(s): CRG/2019/005689Abstract: Background: An alveolar cleft commonly affects 75% of cleft lip and palate patients. While it is common practice to provide a course of orthodontic treatment before alveolar bone grafting, there are no previous high-quality studies reporting on the benefits of this type of treatment. Aim: The aim of the study is to evaluate the effectiveness of pre-alveolar bone graft orthodontics for unilateral non-syndromic cleft palate patients. Method: The PABO trial is a multicentric, parallel, two-arm, single-blinded randomised controlled trial. The inclusion criteria include unilateral cleft alveolus patients requiring bone graft and between the age group of 8 and 13 years with erupted upper central incisors. Participants will be recruited at three centres across India. Participants will be randomised to orthodontic treatment or no orthodontic treatment group. Both groups of participants will have alveolar bone graft surgery and will be followed up for 6 months after surgery. The primary outcome will be the success of the alveolar bone graft measured by anterior oblique radiograph and secondary outcomes include quality of life, cost analysis and quality of the dento-occlusal outcome. Data analysis will be carried out by an independent statistician at the end of the study. Discussion: This study is the first to evaluate the effect of orthodontics on alveolar bone graft success. The increased burden of care for these patients with multiple treatments required from multiple specialists from birth to adult life highlights the need for reducing unnecessary treatment provision. Trial Registration: Clinical Trials Registry – India, CTRI/2020/10/028756. Trial prospectively registered on 29 October 2020.
Eastern Presence: Metropolitan responses to the Indian Army, 1914-15
Get PDFThe mobilisation of the British empire during the First World War created new spaces for encounter between British and Indian society. Between August 1914 and December 1915, the Indian army dispatched over 100,000 Indian servicemen to the Western Front as part of Indian Expeditionary Force A. The thesis’s objective is to improve understanding of how Western and, more specifically, British society responded to the presence of these Indian servicemen. It reconsiders British perspectives of the Indian solider, reflects upon how these perspectives impacted the discourse which surrounded the sepoys, and the effect it had on the Indian army’s colonial hierarchy. As a result, ‘Eastern Presence’ furthers understanding of British conceptions of racial identity and colonialism within the context of the First World War and demonstrates the impact that these conceptions had on the Indian army’s hierarchical structure. To achieve this goal, the thesis uses the geographical and locational settings
experienced by Indian servicemen during their stay in Western Europe to analyse their interactions with various parts of British and Western society. Through its analysis of these interactions, ‘Eastern Presence’ challenges much of the existing historiography by arguing that variances in conceptions of race can be identified, depending on the part of British society which experienced the encounter. It consequently concludes that British society demonstrated varying degrees of knowledge, empathy, and perception towards the colonial ‘other’ in its midst
The Role of the European Society of Human Genetics in Delivering Genomic Education
Get PDFFrom Frontiers via Jisc Publications RouterHistory: collection 2021, received 2021-04-12, accepted 2021-07-22, epub 2021-09-03Publication status: PublishedThe European Society of Human Genetics (ESHG) was founded in 1967 as a professional organisation for members working in genetics in clinical practice, research and education. The Society seeks the integration of scientific research and its implementation into clinical practice and the education of specialists and the public in all areas of medical and human genetics. The Society works to do this through many approaches, including educational sessions at the annual conference; training courses in general and specialist areas of genetics; an online resource of educational materials (EuroGEMS); and a mentorship scheme. The ESHG Education Committee is implementing new approaches to expand the reach of its educational activities and portfolio. With changes in technology, appreciation of the utility of genomics in healthcare and the public’s and patients’ increased awareness of the role of genomics, this review will summarise how the ESHG is adapting to deliver innovative educational activity
Data sources:
Access Repository Dashboard
Do you manage ChesterRep? Access insider analytics, issue reports and manage access to outputs from your repository in the CORE Repository Dashboard!