262,290 research outputs found
A typical daughter of America. Cora Slocomb, il caso Barbella e la dignità della vita
No full textPacifista e letterata, cultrice dell'artigianato e dell'arte, Cora Slocomb (New Orleans 1862 - Roma 1944) persegue l'obiettivo di trasmettere conoscenza e favorire l'emancipazione femminile: in Friuli, offrendo alle donne preziose opportunità di lavoro; in America, promuovendo la loro produzione di merletti, e salvando dalla sedia elettrica una giovane immigrata italiana. I saggi di Angelo Floramo, Carmen Romeo, Martina Zamparo e Marisa Sestito individuano i progetti più innovativi di Cora Slocomb: spaziano dal suo talento imprenditoriale, fertile di opportunità lavorative per le donne; all'impresa titanica che la oppone, vincente, alla pena di morte; alla creatività letteraria, ricca di stimolanti interrogativi sui rapporti di genere. I Collage approfondiscono le tematiche dei saggi; in chiusura, il discorso tenuto a Chicago e il Reading che ne riprende i tratti salienti, rivelano l'amore di Cora per le sue merlettaie e il legame con la terra del Friuli
Smascherare i falsi archeologici: l’opinione dell’esperto
No full textWhile the phenomenon of forgery has been around since time immemorial, much more recent is the recognition of its significance within art historical and archaeological studies, as well as the identification of methods for its detection. This article analyses the role of forgery in contemporary society with the aim of drawing the attention of cultural professionals to a recently established, multidisciplinary field of work with wide-ranging potential for future development
“Thy physic I will try”: Art, Nature, and Female Healing in Shakespeare
No full textAs one reads in Aristotle’s Physics, art both imitates and completes nature, being not only a ministra naturæ but also a ‘corrector’ of nature. Through the major influence of Paracelsianism, in Shakespeare’s England the art of medicine was closely associated with alchemy. The latter, as William Newman has noted, “provided a uniquely powerful focus for discussing the boundary between art and nature”. By considering the characters of Marina (Pericles; Prince of Tyre) and Helen (All’s Well That Ends Well), this essay investigates the two women’s relation to the healing arts and to nature in the light of coeval alchemical and Paracelsian doctrines. The two Shakespearean women employ their healing powers, i.e. their “artificial feat”, as well as their knowledge of nature’s occult sympathies and antipathies, in the service of a “kingly patient”: Pericles and the King of France. The topos of the healing of the king is a common trope in Renaissance alchemical literature, where the ‘king’ represents gold in potentia and, thus, the raw matter that has to be purified by Lady Alchymya. In the light of their privileged access to nature’s secret workings, women could manipulate nature and heal the human body. The analysis will focus on Marina’s homeopathic and, therefore, Paracelsian healing of her father Pericles and on Helen’s still controversial medical practice, which seems to exceed both the Galenic and the Paracelsian paradigm
ROLE OF OLIGOPHRENIN 1 IN CIRCUIT FORMATION IN THE OLFACTORY BULB OF A MOUSE MODEL OF x-LINKED INTELLECTUAL DISABILITY
No full text“If this be magic, let it be an art lawful as eating.” An alchemical reading of the living statue in The Winter’s Tale
No full textThis paper aims at reading one of the most enigmatic and fascinating Shakespearean 'objects', the statue of Queen Hermione in the final scene of The Winter’s Tale, in the light of the alchemical contemporary debate over the respective roles of art and nature. Recalling the Egyptian magic and art recorded in the "Asclepius", a treatise that must have been familiar to Shakespeare’s contemporaries, the so-called ‘statue scene’ might be seen as representative of the Hermetic world-view, according to which man was not only a helper of nature but also a co-creator, actively participating in the action of perfecting the world and able to reproduce the processes by means of which God, the “great Alchymist”, created life. The discussion will also take into consideration the possible reception of the scene by the patron of Shakespeare’s theatre company, King James I, seemingly hostile towards every form of magic, but, at the same time, associated to figures such as Hermes Trismegistus and Solomon
Mechanical power, thrust power
No full textThe purpose of this study was to explore the relationships between mechanical power, thrust power, propelling efficiency and sprint performance in elite swimmers. Mechanical power was measured in 12 elite sprint male swimmers: i) in the laboratory, by using a whole body swimming ergometer (W’TOT); and ii) in the pool, by measuring full tethered swimming force (FT) and maximal swimming velocity (Vmax): W’T = FT .Vmax. Propelling efficiency ( P) was estimated based on the “paddle wheel model“ at Vmax. Vmax was 2.17 ± 0.06 m . s-1, P was 0.39 ± 0.02, W’T was 374 ± 62 W and W’TOT was 941 ± 92 W. Vmax was better related to W’T (useful power output: R=0.943, P<0.001) than to W’TOT (total power output: R=0.744, P<0.01) and this confirms the use of the full tethered test as a valid test to assess power propulsion in sprinters and to estimate swimming performance. The ratio W’T/ W’TOT (0.40 ± 0.04) represents the fraction of total mechanical power that can be utilized in water (e.g. P) and was indeed the same as that estimated based on the “paddle wheel model”; this supports the use of this model to estimate P in swimming
Mechanical and propelling efficiency in swimming derived from exercise using a laboratory-based whole-body swimming ergometer
No full textDetermining the efficiency of a swimming stroke is difficult because different “efficiencies” can be computed based on the partitioning of mechanical power output (Ẇ) into its useful and nonuseful components, as well as because of the difficulties in measuring the forces that a swimmer can exert in water. In this paper, overall efficiency (ηO = ẆTOT/Ė, where ẆTOT is total mechanical power output, and Ė is overall metabolic power input) was calculated in 10 swimmers by means of a laboratory-based whole-body swimming ergometer, whereas propelling efficiency (ηP = ẆD/ẆTOT, where ẆD is the power to overcome drag) was estimated based on these values and on values of drag efficiency (ηD = ẆD/Ė): ηP = ηD/ηO. The values of ηD reported in the literature range from 0.03 to 0.09 (based on data for passive and active drag, respectively). ηO was 0.28 ± 0.01, and ηP was estimated to range from ∼0.10 (ηD = 0.03) to 0.35 (ηD = 0.09). Even if there are obvious limitations to exact simulation of the whole swimming stroke within the laboratory, these calculations suggest that the data reported in the literature for ηO are probably underestimated, because not all components of ẆTOT can be measured accurately in this environment. Similarly, our estimations of ηP suggest that the data reported in the literature are probably overestimated
A protocol of intermittent exercise (shuttle runs) to train young basketball players
No full textThe purpose of this study was to set up a protocol of intermittent exercise to train young basketball players. Twenty-one players were asked to complete (a) an incremental test to determine maximal oxygen uptake (VO2max), the speed at the ventilatory threshold (vthr) and the energy cost of "linear" running (Cr) and (b) an intermittent test composed of 10 shuttle runs of 10-second duration and 30-seconds of recovery (total duration: about 6 minutes). The exercise intensity (the running speed, vi) was set at 130% of vthr. During the intermittent tests, oxygen uptake (VO2) and blood lactate concentration (Lab) were measured. The average pretraining VO2 calculated for a single bout (131 ± 9 ml · min(-1) kg(-1)) was about 2.4 times greater than the subjects' measured VO2max (54.7 ± 4.6 ml · min(-1) · kg(-1)). The net energy cost of running (9.2 ± 0.9 J · m(-1) · kg(-1)) was about 2.4 times higher than that measured at constant "linear" speed (3.9 ± 0.3 J · m(-1) · kg(-1)). The intermittent test was repeated after 7 weeks of training: 9 subjects (control group [CG]) maintained their traditional training schedule, whereas for 12 subjects (experimental group [EG]) part of the training was replaced by intermittent exercise (the same shuttle test as described above). After training, the VO2 measured during the intermittent test was significantly reduced (p < 0.05) in both groups (-10.9% in EG and - 4.6 in CG %), whereas Lab decreased significantly only for EG (-31.5%). These data suggest that this training protocol is effective in reducing lactate accumulation in young basketball player
Bioenergetica e biomeccanica del nuoto pinnato
No full textIn questo capitolo vengono presentati i principi di base della bioenergetica e della biomeccanica del nuoto. Vengono inoltre presentate e discusse le ragioni per cui i nuoto con le pinne risulta essere più economico ed efficiente del nuoto senza pinne
Il costo energetico: fattori che lo determinano
No full textIl costo energetico del nuoto (C) è definito
come l’energia spesa per coprire una
determinata distanza; per produrre un’elevata
velocità, C dovrebbe essere il minore
possibile. C dipende dalla resistenza
idrodinamica (Wd: è vantaggioso avere un
valore basso), dall’efficienza propulsiva
(ηp) e dall’efficienza totale (ηo) (è vantaggioso
avere questi due valori alti). Sfortunatamente,
questi parametri sono piuttosto
difficili da misurare e i metodi finora proposti
in letteratura per misurare/calcolare
questi fattori danno risultati molto diversi
tra loro
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