199,071 research outputs found
Genetic and social trait data for a 'clinical' UK sample and a 'non-caucasian' UK sample
No full textData for paper Pearce, E., Wlodarski, R., Machin, A., & Dunbar, R. I. M. 'The influence of genetic variation on social disposition, romantic relationships and social networks'.
See also Pearce, E., Wlodarski, R., Machin, A., & Dunbar, R. I. M. (2017). Variation in the β-endorphin, oxytocin, and dopamine receptor genes is associated with different dimensions of human sociality. Proceedings of the National Academy of Sciences, 114(20), 5300–5305. Retrieved from http://www.pnas.org/content/114/20/5300.abstract Data collected from UK population at science festivals and a museum to look at the genetics underpinning human social behaviour and cognition
sj-docx-2-plj-10.1177_14757257241241592 - Supplemental material for Comparing ChatGPT With Experts’ Responses to Scenarios that Assess Psychological Literacy
No full textSupplemental material, sj-docx-2-plj-10.1177_14757257241241592 for Comparing ChatGPT With Experts’ Responses to Scenarios that Assess Psychological Literacy by M. Anthony Machin, Tanya M. Machin and Natalie Gasson in Psychology Learning & Teaching</p
sj-docx-1-plj-10.1177_14757257241241592 - Supplemental material for Comparing ChatGPT With Experts’ Responses to Scenarios that Assess Psychological Literacy
No full textSupplemental material, sj-docx-1-plj-10.1177_14757257241241592 for Comparing ChatGPT With Experts’ Responses to Scenarios that Assess Psychological Literacy by M. Anthony Machin, Tanya M. Machin and Natalie Gasson in Psychology Learning & Teaching</p
The rational number u2 for the two-term Machin-like formula for pi computed by iteration
No full textThe file 'u2.txt' contains the computed value of the rational number u2 at k = 27 and u1 = 85445659 for the two-term Machin-like formula for pi. The computation was performed in a supercomputer by using iteration method. Derivation of the two-term Machin-like formula for pi is given in the paper [S. M. Abrarov and B. M. Quine, arXiv:1704.02875]
Impact of COVID-19 on vascular patients worldwide: analysis of the COVIDSurg data
No full textBACKGROUND: The COVIDSurg collaborative was an international multicenter prospective analysis of perioperative data from 235 hospitals in 24 countries. It found that perioperative COVID-19 infection was associated with a mortality rate of 24%. At the same time, the COVER study demonstrated similarly high perioperative mortality rates in vascular surgical patients undergoing vascular interventions even without COVID-19, likely associated with the high burden of comorbidity associated with vascular patients. This is a vascular subgroup analysis of the COVIDSurg cohort. METHODS: All patients with a suspected or confirmed diagnosis of COVID-19 in the 7 days prior to, or in the 30 days following a vascular procedure were included. The primary outcome was 30-day mortality. Secondary outcomes were pulmonary complications (adult respiratory distress syndrome, pulmonary embolism, pneumonia and respiratory failure). Logistic regression was undertaken for dichotomous outcomes. RESULTS: Overall, 602 patients were included in this subgroup analysis, of which 88.4% were emergencies. The most common operations performed were for vascular-related dialysis access procedures (20.1%, N.=121). The combined 30-day mortality rate was 27.2%. Composite secondary pulmonary outcomes occurred in half of the vascular patients (N.=275, 45.7%). CONCLUSIONS: Mortality following vascular surgery in COVID positive patients was significantly higher than levels reported pre-pandemic, and similar to that seen in other specialties in the COVIDSurg cohort. Initiatives and surgical pathways that ensure vascular patients are protected from exposure to COVID-19 in the peri-operative period are vital to protect against excess mortality. (Cite this article as: Hitchman L, Machin M; The COVIDSurg Collaborative and Vascular and Endovascular Research Network. Impact of COVID-19 on vascular patients worldwide: analysis of the COVIDSurg data. J Cardiovasc Surg 2021;62:558-70. DOI: 10.23736/S0021-9509.21.12024-5
Finding and Excluding <i>b</i>-ary Machin-Type Individual Digit Formulae
No full textAbstractConstants with formulae of the form treated by D. Bailey, P. Borwein, and S. Plouffe (BBP formulae to a given base b) have interesting computational properties, such as allowing single digits in their base b expansion to be independently computed, and there are hints that they should be normal numbers, i.e., that their base b digits are randomly distributed. We study a formally limited subset of BBP formulae, which we call Machin-type BBP formulae, for which it is relatively easy to determine whether or not a given constant κ has a Machin-type BBP formula. In particular, given b ∈ ℕ, b > 2, b not a proper power, a b-ary Machin-type BBP arctangent formula for κ is a formula of the form κ = Σmam arctan(–b–m), am ∈ ℚ, while when b = 2, we also allow terms of the form am arctan(1/(1 – 2m)). Of particular interest, we show that π has no Machin-type BBP arctangent formula when b ≠ 2. To the best of our knowledge, when there is no Machin-type BBP formula for a constant then no BBP formula of any form is known for that constant.</jats:p
Education Policy in the UK
No full textBildungspolitik, Hochschulreform, Großbritannien, Educational policy, Higher education reform, United Kingdom
Factors of Convergence and Divergence in Union Membership
No full textThis paper considers to what extent union decline in Britain has been characterised by convergence or divergence in union membership rates for people with different personal and job characteristics. It compares data on individual union membership in 1975, from a period when union membership was high and growing, to data in 2001 data when it is low and has been falling for over twenty years. Some factors of both convergence and divergence are identified. The clearest individual characteristic of convergence is gender. In 1975 there was a big male-female gap in union membership, whilst by 2001 one cannot reject the hypothesis that union membership rates were equal for men and women. The clearest case of divergence is age where the 1975-2001 period sees a widening of the age gap in union membership status. Other factors of convergence are the full- time/part-time status of jobs, ethnicity and workplace size. Other factors of divergence are industry and educational qualifications. Some other factors (like region) are neutral in that their relationship with union membership remains stable through time. Identification of these factors of convergence and divergence should be useful to many parties, including industrial relations scholars and union organisers. Finally, the fact that the magnitude of the relationships between union membership and a number of its determinants have shifted through time illustrates that one should be careful if one wishes to talk about empirical regularities in who is more or less likely to become a trade union member.
Impact of COVID-19 on vascular patients worldwide: analysis of the COVIDSurg data
No full textBACKGROUND: The COVIDSurg collaborative was an international multicenter prospective analysis of perioperative data from 235 hospitals in 24 countries. It found that perioperative COVID-19 infection was associated with a mortality rate of 24%. At the same time, the COVER study demonstrated similarly high perioperative mortality rates in vascular surgical patients undergoing vascular interventions even without COVID-19, likely associated with the high burden of comorbidity associated with vascular patients. This is a vascular subgroup analysis of the COVIDSurg cohort. METHODS: All patients with a suspected or confirmed diagnosis of COVID-19 in the 7 days prior to, or in the 30 days following a vascular procedure were included. The primary outcome was 30-day mortality. Secondary outcomes were pulmonary complications (adult respiratory distress syndrome, pulmonary embolism, pneumonia and respiratory failure). Logistic regression was undertaken for dichotomous outcomes. RESULTS: Overall, 602 patients were included in this subgroup analysis, of which 88.4% were emergencies. The most common operations performed were for vascular-related dialysis access procedures (20.1%, N.=121). The combined 30-day mortality rate was 27.2%. Composite secondary pulmonary outcomes occurred in half of the vascular patients (N.=275, 45.7%). CONCLUSIONS: Mortality following vascular surgery in COVID positive patients was significantly higher than levels reported pre-pandemic, and similar to that seen in other specialties in the COVIDSurg cohort. Initiatives and surgical pathways that ensure vascular patients are protected from exposure to COVID-19 in the peri-operative period are vital to protect against excess mortality. (Cite this article as: Hitchman L, Machin M; The COVIDSurg Collaborative and Vascular and Endovascular Research Network. Impact of COVID-19 on vascular patients worldwide: analysis of the COVIDSurg data. J Cardiovasc Surg 2021;62:558-70. DOI: 10.23736/S0021-9509.21.12024-5
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