Search Results - (Author, Cooperation:S. Legg)
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1V. Mnih ; K. Kavukcuoglu ; D. Silver ; A. A. Rusu ; J. Veness ; M. G. Bellemare ; A. Graves ; M. Riedmiller ; A. K. Fidjeland ; G. Ostrovski ; S. Petersen ; C. Beattie ; A. Sadik ; I. Antonoglou ; H. King ; D. Kumaran ; D. Wierstra ; S. Legg ; D. Hassabis
Nature Publishing Group (NPG)
Published 2015Staff ViewPublication Date: 2015-02-27Publisher: Nature Publishing Group (NPG)Print ISSN: 0028-0836Electronic ISSN: 1476-4687Topics: BiologyChemistry and PharmacologyMedicineNatural Sciences in GeneralPhysicsKeywords: Algorithms ; *Artificial Intelligence ; Humans ; Models, Psychological ; Neural Networks (Computer) ; *Reinforcement (Psychology) ; Reward ; *Video GamesPublished by: -
2M. H. Alford ; T. Peacock ; J. A. MacKinnon ; J. D. Nash ; M. C. Buijsman ; L. R. Centurioni ; S. Y. Chao ; M. H. Chang ; D. M. Farmer ; O. B. Fringer ; K. H. Fu ; P. C. Gallacher ; H. C. Graber ; K. R. Helfrich ; S. M. Jachec ; C. R. Jackson ; J. M. Klymak ; D. S. Ko ; S. Jan ; T. M. Johnston ; S. Legg ; I. H. Lee ; R. C. Lien ; M. J. Mercier ; J. N. Moum ; R. Musgrave ; J. H. Park ; A. I. Pickering ; R. Pinkel ; L. Rainville ; S. R. Ramp ; D. L. Rudnick ; S. Sarkar ; A. Scotti ; H. L. Simmons ; L. C. St Laurent ; S. K. Venayagamoorthy ; Y. H. Wang ; J. Wang ; Y. J. Yang ; T. Paluszkiewicz ; T. Y. Tang
Nature Publishing Group (NPG)
Published 2015Staff ViewPublication Date: 2015-11-19Publisher: Nature Publishing Group (NPG)Print ISSN: 0028-0836Electronic ISSN: 1476-4687Topics: BiologyChemistry and PharmacologyMedicineNatural Sciences in GeneralPhysicsPublished by: -
3M. H. Alford ; T. Peacock ; J. A. MacKinnon ; J. D. Nash ; M. C. Buijsman ; L. R. Centuroni ; S. Y. Chao ; M. H. Chang ; D. M. Farmer ; O. B. Fringer ; K. H. Fu ; P. C. Gallacher ; H. C. Graber ; K. R. Helfrich ; S. M. Jachec ; C. R. Jackson ; J. M. Klymak ; D. S. Ko ; S. Jan ; T. M. Johnston ; S. Legg ; I. H. Lee ; R. C. Lien ; M. J. Mercier ; J. N. Moum ; R. Musgrave ; J. H. Park ; A. I. Pickering ; R. Pinkel ; L. Rainville ; S. R. Ramp ; D. L. Rudnick ; S. Sarkar ; A. Scotti ; H. L. Simmons ; L. C. St Laurent ; S. K. Venayagamoorthy ; Y. H. Wang ; J. Wang ; Y. J. Yang ; T. Paluszkiewicz ; T. Y. Tang
Nature Publishing Group (NPG)
Published 2015Staff ViewPublication Date: 2015-05-08Publisher: Nature Publishing Group (NPG)Print ISSN: 0028-0836Electronic ISSN: 1476-4687Topics: BiologyChemistry and PharmacologyMedicineNatural Sciences in GeneralPhysicsPublished by: -
4Staff View
Publication Date: 2018-11-08Publisher: Royal SocietyElectronic ISSN: 2054-5703Topics: Natural Sciences in GeneralKeywords: psychology, cognitionPublished by: -
5Staff View
ISSN: 1476-4687Source: Nature Archives 1869 - 2009Topics: BiologyChemistry and PharmacologyMedicineNatural Sciences in GeneralPhysicsNotes: [Auszug] During the period 1957-59 we have observed, in cattle on the Berbice savannahs, lesions closely resembling those described in rats fed on diets deficient in zinc. In the more acute cases, parakeratosis spreads rapidly over about 40 per cent of the body surface. The following areas are affected, ...Type of Medium: Electronic ResourceURL: -
6Staff View
ISSN: 1439-6327Keywords: Sustained work ; Anaerobic power ; Wingate test ; Handgrip ; Sleep deprivationSource: Springer Online Journal Archives 1860-2000Topics: MedicineNotes: Summary In a military field artillery trial, the effects of 8 days of sustained manual work and partial sleep loss on isometric right hand grip strength and upper and lower body anaerobic power (using the Wingate test) was investigated in 25 healthy young male soldiers. During the trial, the physical activity of each subject was essentially identical except that an experimental group (n=18) manually handled a large quantity of artillery shells (weighing 45 kg) and charges (13 kg), whilst a control group (n=7) merely simulated manual handling activities and did no lifting or loading of shells. The daily amount of sleep obtained by each group was similar (3 to 4 hours), as were their activity patterns and food and fluid intake. Isometric right hand grip strength for both groups fell progressively during the trial and did not return to pre-trial levels during 3 days of recovery. At the end of the 8 day trial, there were statistically significant reductions in the body weight (1.9%,p〈 0.001), % body fat (7.1%,p〈 0.001) and upper body mean power (7.3%,p〈0.01) of the experimental group but not in the controls. Lower body peak and mean power were significantly increased at the end of the trial in both the experimental (14.7%,p〈0.001 and 17.0%,p〈0.001 respectively) and control (14.3%,p〈0.01 and 15.0%,p〈0.05 respectively) groups. Lower body power decrease was significantly increased (18.1%,p〈0.05) in the experimental group but not in the controls. It is suggested that the increase in lower body anaerobic power may be associated with the increased level of physical activity during the trial ie a training effect, and that the decrease in upper body anaerobic power may be associated with the combination of unaccostomed arduous manual handling of heavy loads and partial sleep loss since it was only observed in the experimental group.Type of Medium: Electronic ResourceURL: -
7Staff View
ISSN: 1439-6327Keywords: Oxygen consumption ; Work efficiency ; Repetitive lifting ; Exercise testingSource: Springer Online Journal Archives 1860-2000Topics: MedicineNotes: Summary A multi-stage, repetitive lifting maximal oxygen uptake ( $$\dot V_{O_{2max} }$$ ) test was developed to be used as an occupational research tool which would parallel standard ergometric $$\dot V_{O_{2max} }$$ testing procedures. The repetitive lifting $$\dot V_{O_{2max} }$$ test was administered to 18 men using an automatic repetitive lifting device. An intraclass reliability coefficient of 0.91 was obtained with data from repeated tests on seven subjects. Repetitive lifting $$\dot V_{O_{2max} }$$ test responses were compared to those for treadmill, cycle ergometer and arm crank ergometer. The mean±SD repetitive lifting $$\dot V_{O_{2max} }$$ of 3.20±0.42 l · min−1 was significantly (p〈0.01) less than treadmill $$\dot V_{O_{2max} }$$ (Δ = 0.92 l · min−1) and cycle ergometer $$\dot V_{O_{2max} }$$ (Δ = 0.43 l· min−1) and significantly greater than arm crank ergometer $$\dot V_{O_{2max} }$$ (Δ = 0.63 l · min−1). The correlation between repetitive lifting oxygen uptake and power output wasr = 0.65. $$\dot V_{O_{2max} }$$ correlated highly among exercise modes, but maximum power output did not. The efficiency of repetitive lifting exercise was significantly greater than that for arm cranking and less than that for leg cycling. The repetitive lifting $$\dot V_{O_{2max} }$$ test has an important advantage over treadmill or cycle ergometer tests in the determination of relative repetitive lifting intensities. The individual curves of $$\dot V_{O_2 }$$ vs. power output established during the multi-stage lifting $$\dot V_{O_{2max} }$$ test can be used to accurately select work loads required to elicit given percentages of maximal oxygen uptake.Type of Medium: Electronic ResourceURL: -
8Staff View
ISSN: 1439-6327Keywords: Static and Dynamic work ; Hot conditions ; Physiological strain ; Perceived exertionSource: Springer Online Journal Archives 1860-2000Topics: MedicineNotes: Summary Current physiological criteria for limiting work in hot conditions are frequently based on responses to mainly dynamic work (eg treadmill walking). Their applicability to industrial situations containing mixed static and dynamic work is questioned, since the physiological responses to static work are different from those of dynamic work. Each of eight subjects attempted a one hour uphill treadmill walk (mainly dynamic work), and an uphill treadmill walk whilst intermittently carrying a 20 kg weight in the arms (mixed static and dynamic work). The external work rates in the two conditions were equal, effected by lowering the treadmill gradient in the loaded condition. Experiments were conducted in a hot climate (33Type of Medium: Electronic ResourceURL: