1,787 research outputs found
L-configuration re-attachment of distal biceps tendon rupture
In distal biceps tendon ruptures, re-attachment to the radial tuberosity should ensure adequate tendon to bone contact for optimal healing
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Voting Trusts and Antitrust: Rethinking the Role of Shareholder Rights and Private Litigation in Public Regulation, 1880s to 1930s
Scholars have long recognized that the statesâ authority to charter corporations bolstered their antitrust powers in ways that were not available to the federal government. But they have also argued that the growth of large-scale enterprises operating in national and even international markets forced states to stop prosecuting monopolistic combinations out of fear of doing serious damage to their domestic economies. Our paper has revised this conventional view by focusing attention on the lawsuits that minority shareholders brought against their own companies in state courts of law and equity, especially suits that challenged the anticompetitive use of voting trusts. Historically judges had been reluctant to intervene in corporationsâ internal affairs and had displayed a particular wariness of shareholdersâ private actions. By the end of the nineteenth century, however, they had begun to revise their views and to see shareholdersâ private actions as useful checks on economic concentration. Although the balance between judgesâ suspicion of and support for shareholdersâ activism shifted back and forth over time, the long-run effect was to make devices like voting trusts unsuitable for the purposes of economic concentration
E-bike use and ownership in the Lake District National-Park UK
E-bike use in rural and tourist areas is under-researched and has potential to replace car journeys reducing greenhouse gas emissions and other impacts of car use. We studied the rural use of e-bikes in a tourist area (the Lake District National Park, UK) through Covid-19. Mixed methods were used; two waves (2020 & 2021) of a semi-panel quantitative survey; including open responses; supplemented by self-study field trips.
Key findings include high levels of e-biking in a wet and hilly area by generally older individuals, including a high proportion of female respondents. Usage was higher in 2020, partly due to lower traffic levels during Covid restrictions, but relatively high usage was maintained in 2021.
Users are substituting more car journeys than active travel and public transport trips, and amongst women, more errands than commutes. We found support for restraint of car use in the study area, along with support for secure e-bike parking, e-bike share schemes, and integration with public transport.
The implications for planners and policymakers are that policies supporting rural e-biking may be well received if they form part of greener transport plans including e-bike facilities, integration with public transport and car restraint. Promotion of e-bike use needs to shift from an urban commuting focus, to also consider rural areas errands and leisure trips. National parks and other rural tourist areas may confidently assume that hills and weather do not always act as barriers
Physical characteristics underpinning repetitive lunging in fencing
Given the repetitive demand to execute lunging and changes in direction within fencing, the ability to sustain these at maximal capacity is fundamental to performance. The aim of this study was threefold. Firstly to provide normative values for this variable referred to as repeat lunge ability (RLA) and secondly to identify the physical characteristics that underpin it. Thirdly, was to establish if a cause and effect relationship existed by training the associated characteristics. Assessment of lower body power, reactive strength, speed, change of direction speed (CODS) and a sport specific RLA were conducted on senior and junior elite male fencers (n = 36). Fencers were on average (± SD) 18.9 ± 3.2 years of age, 174.35 ± 10.42 cm tall, 70.67 ± 7.35 kg in mass, and 8.5 ± 4.2 years fencing experience. The RLA test had average work times of 16.03 s ± 1.40 and demonstrated "large" to "very large" associations with all tested variables, but in particular CODS (r = .70) and standing broad jump (SBJ; r = -68). Through linear regression analysis, these also provided a two-predictor model accounting for 61% of the common variance associated with RLA. A cause and effect relationship with SBJ and CODS was confirmed by the training group, where RLA performance in these fencers improved from 15.80 ± 1.07 s to 14.90 ± 0.86 s, with the magnitude of change reported as "moderate" (ES = 0.93). Concurrent improvements were also noted in both SBJ (216.86 cm ± 17.15 vs. 221.71 ± 17.59 cm) and CODS (4.44 ± 0.29 s s. 4.31 ± 0.09 s) and while differences were only significant in SBJ, magnitudes of change were classed as "small" (ES = 0.28) and "moderate" (ES = 0.61)respectively. In conclusion, to improve RLA strength and conditioning coaches should focus on improving lower-body power and reactive strength, noting that jump training and plyometrics designed to enhance horizontal propulsion may be most effective, and translate to improvement in CODS also
A programmable two-qubit quantum processor in silicon
With qubit measurement and control fidelities above the threshold of
fault-tolerance, much attention is moving towards the daunting task of scaling
up the number of physical qubits to the large numbers needed for fault tolerant
quantum computing. Here, quantum dot based spin qubits may offer significant
advantages due to their potential for high densities, all-electrical operation,
and integration onto an industrial platform. In this system, the
initialisation, readout, single- and two-qubit gates have been demonstrated in
various qubit representations. However, as seen with other small scale quantum
computer demonstrations, combining these elements leads to new challenges
involving qubit crosstalk, state leakage, calibration, and control hardware
which provide invaluable insight towards scaling up. Here we address these
challenges and demonstrate a programmable two-qubit quantum processor in
silicon by performing both the Deutsch-Josza and the Grover search algorithms.
In addition, we characterise the entanglement in our processor through quantum
state tomography of Bell states measuring state fidelities between 85-89% and
concurrences between 73-80%. These results pave the way for larger scale
quantum computers using spins confined to quantum dots
Integrated processing of sugarcane bagasse : arabinoxylan extraction integrated with ethanol production.
The authors gratefully acknowledge the funding for âProject POC02_NOV 14 Campbellâ from the Lignocellulosic Biorefinery Network (LBNet), funded by the Biotechnology and Biological Sciences Research Council (BBSRC).A proof-of-concept project compared extraction of arabinoxylans (AX) from sugarcane bagasse and wheat bran via alkaline hydrogen peroxide followed by enzyme-assisted extraction with combinations of feruloyl esterases and a xylanase. Bagasse contains comparable amounts of AX to wheat bran, but with a much lower arabinoxylan substitution on the xylan backbone (A:X ratio of around 0.2 compared with 0.6 for wheat bran), hence offering AX products with distinctive functionality and potential end uses. In the current work, bagasse released its AX more readily than wheat bran, and released a wider range of molecular weights. Use of feruloyl esterase and xylanase enzymes on their own or following alkaline peroxide extraction did not enhance AX release substantially; however, the xylanase appeared to be effective at reducing the size of AX molecules, and there is scope to optimise the effects of enzymes to produce specific AX product fractions. As bagasse frequently arises within the context of bioethanol production, integration of AX extraction with ethanol production could allow economic production of a portfolio of AX products, as has been demonstrated in principle for AX co-production in a wheat ethanol plant.PostprintPeer reviewe
Opioid prescribing in out-of-hours primary care in Flanders and the Netherlands:A retrospective cross-sectional study
BACKGROUND: Increased opioid prescribing has raised concern, as the benefits of pain relief not always outweigh the risks. Acute and chronic pain is often treated in a primary care out-of-hours (OOH) setting. This setting may be a driver of opioid use but the extent to which opioids are prescribed OOH is unknown. We aimed to investigate weak and strong opioid prescribing at OOH primary care services (PCS) in Flanders (Northern, Dutch-speaking part of Belgium) and the Netherlands between 2015 and 2019. METHODS: We performed a retrospective cross sectional study using data from routine electronic health records of OOH-PCSs in Flanders and the Netherlands (2015â2019). Our primary outcome was the opioid prescribing rate per 1000 OOH-contacts per year, in total and for strong (morphine, hydromorphone, oxycodone, oxycodone and naloxone, fentanyl, tapentadol, and buprenorphine and weak opioids (codeine combinations and tramadol and combinations) and type of opioids separately. RESULTS: Opioids were prescriped in approximately 2.5% of OOH-contacts in both Flanders and the Netherlands. In Flanders, OOH opioid prescribing went from 2.4% in 2015 to 2.1% in 2017 and then increased to 2.3% in 2019. In the Netherlands, opioid prescribing increased from 1.9% of OOH-contacts in 2015 to 2.4% in 2017 and slightly decreased thereafter to 2.1% of OOH-contacts. In 2019, in Flanders, strong opioids were prescribed in 8% of the OOH-contacts with an opioid prescription. In the Netherlands a strong opioid was prescribed in 57% of these OOH-contacts. Two thirds of strong opioids prescriptions in Flanders OOH were issued for patients over 75, in the Netherlands one third was prescribed to this age group. CONCLUSION: We observed large differences in strong opioid prescribing at OOH-PCSs between Flanders and the Netherlands that are likely to be caused by differences in accessibility of secondary care, and possibly existing opioid prescribing habits. Measures to ensure judicious and evidence-based opioid prescribing need to be tailored to the organisation of the healthcare system
Estrogen Receptor Genotypes, Menopausal Status, and the Effects of Tamoxifen on Lipid Levels: Revised and Updated Results
Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/109960/1/cptclpt2010143.pd
Photofission of heavy nuclei at energies up to 4 GeV
Total photofission cross sections for 238U, 235U, 233U, 237Np, 232Th, and
natPb have been measured simultaneously, using tagged photons in the energy
range Egamma=0.17-3.84 GeV. This was the first experiment performed using the
Photon Tagging Facility in Hall B at Jefferson Lab. Our results show that the
photofission cross section for 238U relative to that for 237Np is about 80%,
implying the presence of important processes that compete with fission. We also
observe that the relative photofission cross sections do not depend strongly on
the incident photon energy over this entire energy range. If we assume that for
237Np the photofission probability is equal to unity, we observe a significant
shadowing effect starting below 1.5 GeV.Comment: 4 pages of RevTex, 6 postscript figures, Submitted to Phys. Rev. Let
Competitive nationalism:state, class, and the forms of capital in devolved Scotland
Devolved government in Scotland actively reconstitutes the unequal conditions of social class reproduction. Recognition of state-led class reconstitution draws upon the social theory of Bourdieu. Our analysis of social class in devolved Scotland revisits theories that examine the state as a `power container'. A range of state-enabling powers regulate the legal, economic, social, and cultural containers of class relations as specific forms of what Bourdieu called economic, social, and cultural `capital'. The preconditions of class reproduction are structured in direct ways by the Scottish state as a wealth container but also, more indirectly, as a cultural container and a social container. Competitive nationalism in the devolved Scottish state enacts neoliberal policies as a class- specific worldview but, at the same time, discursively frames society as a panclass national fraternity in terms of distinctive Scottish values of welfare nationalism. Nationalism is able to express this ambiguity in symbolic ways in which the partisan language of social class cannot
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