The dose response for sprint interval training interventions may affect the time course of aerobic training adaptations

Low vs. high volume sprint-interval training (SIT) sessions have shown similar physiological benefits after 8 weeks. However, the dose response and residual effects of shorter SIT bouts (<10 s) are unknown. Following a 6-wk control period, 13 healthy inactive males were assigned to a low dose (LDG: n = 7) or high dose (HDG: n = 6) supervised 6-wk intervention: ×2/wk of SIT (LDG = 2 sets of 5 × 6 s ON: 18 s OFF bouts; HDG = 4–6 sets); ×1/wk resistance training (3 exercises at 3 × 10 reps). Outcome measures were tested pre and post control (baseline (BL) 1 and 2), 72 h post (0POST), and 3-wk post (3POST) intervention. At 0POST, peak oxygen uptake (VO2peak) increased in the LDG (+16%) and HDG (+11%) vs. BL 2, with no differences between groups (p = 0.381). At 3POST, VO2peak was different between LDG (−11%) and HDG (+3%) vs. 0POST. Positive responses for the intervention’s perceived enjoyment (PE) and rate of perceived exertion (RPE) were found for both groups. Blood pressure, blood lipids, or body composition were not different between groups at any time point. Conclusion: LDG and HDG significantly improved VO2peak at 0POST. However, findings at 3POST suggest compromised VO2peak at 0POST in the HDG due to the delayed time course of adaptations. These findings should be considered when implementing high-dose SIT protocols for non-athletic population

Tip–sample interactions: Extraction of single molecular pair potentials from force curves

This article describes a method for extracting the true tip–sample potential from an experimental force curve in atomic force microscopy. This potential is not the negative integral of the force curve. Rather, the potential is a more complicated function of the force curve and cantilever spring constant. If information about the shape of the tip is known, a decorrelation may be performed to extract molecular pair potentials from the total tip–sample potential. Applications and limitations of this method are discussed

From Venus to Proserpine: Sappho's Last Song

Leopardi had shown interest in the ancient Greek poetess at least from 1814 when he included the translation of one of her poems in a small epithalamial collection of 'Scherzi epigrammatici tradotti dal greco'. When compared to the translation of the same fragment from Sappho’s lyrics made by his contemporary Foscolo and, in the twentieth century, by, for example, Quasimodo and Pontani, Leopardi’s “scherzo” is a far more liberal and personal rendition of the four-line Sappho original. Leopardi admired the lyrist from Lesbos, of whose work - he lamented in his essay of 1816 'Della fama di Orazio presso gli antichi' - very little had survived

From Tobruk to Clare: the experiences of the Italian prisoner of war Luigi Bortolotti 1941-1946

The paper explores the personal account of an Italian prisoner of war, Luigi Bortolotti (1916-1980), who has left a 300-page diary manuscript that relates his experiences from the time of his capture in Tobruk in 1941 until he was repatriated to Italy in 1946. After being placed in camps in Ismailia and Suez, Bortolotti was shipped to Australia where he spent nearly three years in the POW camp at Hay (New South Wales). Early in 1944 he was sent to work on a farm in Clare, South Australia, a country town to which he would return to settle as a migrant in 1948. The paper follows Bortolotti’s daily, often mundane account of his life as a POW in the context of the events of the time and highlights the mental and physical stress and sense of hopelessness that he and many other Italian POWs felt in the Hay camp during their years of confinement. It re-evaluates what has too easily been labeled the “fair treatment” of Italian POWs in Australia and a wartime experience that has been called “not a bad thing”

Viva il Duce: The Influence of Fascism on Italians in South Australia in the 1920s and 1930s

The first big increase of the size of the Italian community in Australia occurred after World War I, due mainly to the tightening up by the USA of its immigration laws, including the application of a quota system, and also to the introduction by the Italian shipping line Lloyd Sabaudo of a direct link between Italy and Australia. As a result, the number of Italians in Australia more than tripled in the 1920s and 1930s, growing from 8000 in 1921 to 30000 in the period before the Second World War. In South Australia the increase was six-fold: from an official census figure of just 344 in 1921 to about 2000 by 1940. With the rise to power of Mussolini in 1922 the Fascist government started organising Fascist Party branches abroad with the aim of 'fascistising' throughout the world Italian migrants and their activities

"Helping People Has Been My Happiness": The Contribution of Elena Rubeo to the Italian Community in South Australia

Elena Rubeo, who was born in Rome in 1896, was the first woman in Australia to be appointed to an Italian consular post. This chapter will look at her life, her involvement in the Italian community, and the determination with which she defended Southern Italians

Italians in South Australia: The First Hundred Years

During the period under consideration, 1839-1939, the number of Italians residing in South Australia was quite small, especially before 1925, but their impact, as we shall see, was quite marked. In 1881, when for the first time specific nationalities were identified in the SA census, just 141 Italians were recorded as living in this State. By 1921 the number had grown to just 344, but following the large increase in Southern European migration to Australia in the 1920s and 1930s, by the time of World War II the number had become about 2,000. Despite these comparatively small numbers, the Italians of this period made important, but not often recognised, contributions to South Australian life in a wide range of areas, which for the purpose of this paper O'Connor has categorised under the headings of: Music; Primary and Secondary Industries, and retailing; Religion; Public Office; Italian Language Teaching

Cost-benefit modelling for reliability growth

Decisions during the reliability growth development process of engineering equipment involve trade-offs between cost and risk. However slight, there exists a chance an item of equipment will not function as planned during its specified life. Consequently the producer can incur a financial penalty. To date, reliability growth research has focussed on the development of models to estimate the rate of failure from test data. Such models are used to support decisions about the effectiveness of options to improve reliability. The extension of reliability growth models to incorporate financial costs associated with 'unreliability' is much neglected. In this paper, we extend a Bayesian reliability growth model to include cost analysis. The rationale of the stochastic process underpinning the growth model and the cost structures are described. The ways in which this model can be used to support cost-benefit analysis during product development are discussed and illustrated through a simple case

Nano-optical studies of superconducting nanowire single-photon detectors

uperconducting single-photon detectors based on superconducting nanowires offer broadband single-photon sensitivity, from visible to mid-infrared wavelengths. They have attracted particular attention due to their promising performance at telecommunications wavelengths. The additional benefits of superconducting nanowire single-photon detectors (SNSPDs) include low dark count rates (Hz) and low timing jitter (sub 100 ps). SNSPDs have been employed in practical photon-counting applications such as quantum key distribution (QKD), operation of quantum waveguide circuits and quantum emitter characterisation. Major challenges in the development of SNSPDs are the improvement of device uniformity and achieving efficient optical coupling. Nano-optical techniques such as confocal microscopy can be used to image localised areas of SNSPDs providing a direct measurement of the device uniformity. The work in this thesis describes both initial nano-optical testing at visible wavelengths in liquid helium and the construction of a fibre based miniature confocal microscope configuration operating at telecommunications wavelengths for use in a closed cycle refrigerator. In both cases localised areas of SNSPDs can be studied whilst maintaining efficient optical coupling. The miniature confocal microscope configuration has sub-nanometre position resolution over a 30 μm x 30 μm area by way of a piezoelectric X-Y scanner. A full width at half maximum (FWHM) optical resolution of 1305 nm at a wavelength of 1550 nm is achieved. SNSPDs based upon niobium nitride (NbN) nanowires fabricated on magnesium oxide (MgO) have been studied. The microscope system has allowed us to map the temporal response (timing jitter and output pulse timing delay) of constricted (non-uniform) SNSPDs. By fitting to a theoretical model, the variations in output pulse timing delay have been shown to be caused by variations in hotspot resistances across the device. This observation has provided insights into the underlying physics of SNSPDs and especially the origins of timing jitter in SNSPDs. This provides a pathway to exploitation of this effect in next-generation device designs for applications such as imaging

Democratic participation in the administration and supervision of the secondary schools of Massachusetts

Thesis (Ed.M.)--Boston University, 1948. This item was digitized by the Internet Archive