Cycling at 120 when compared to 80 rev/min increases the accumulated oxygen deficit but does not affect the precision of its calculation

The aim of the present study was to determine the influence of pedal rate on the precision and quantification of the accumulated oxygen deficit (AOD). Eight trained male triathletes completed a lactate threshold test, VO2 peak test, 10 x 3 min submaximal exercise bouts and a high-intensity exercise bout, all performed at 80 and 120 rev/min. For both pedal rates the intensities for the sub-maximal and high-intensity tests were relative to the lactate threshold and VO2 peak work rates. The VO2-power regressions were calculated using 5 intensities from above the lactate threshold combined with a y intercept value with VO2 measured after 3 min of exercise. For the 120 compared to the 80 rev/min tests, the lactate threshold work rate (255&plusmn;13 versus 276&plusmn;47 Watts) (p<0.01) and VO2 peak work rate (352&plusmn;17 versus 382&plusmn;20, Watts) (p<0.05) were lower at 120 rev/m. Conversely, the VO2 peak and the VO2 measured during the exhaustive exercise were the same for both pedal rates (p>0.05). Using linear regression modelling the slope of the VO2-power regression (0.0112 versus 0.010 L/Watt) (p<0.01), the estimated total energy demand (ETED) (5.13&plusmn;0.75 versus 4.89&plusmn;0.88 L/min) and the AOD (4.27&plusmn;0.94 versus 3.66&plusmn;1.25 L) (p<0.05) were greater at 120 rev/m. However, the 95% confidence interval for the ETED and the standard error of the predicted value were the same for both pedal rates (p>0.05). Our results demonstrate that pedal rate effects the size but not the precision of the calculated AOD and should therefore be considered when developing an AOD protocol.

Hunt angels

Rupert Kathner (Ben Mendelsohn) always had stars in his eyes. He wanted to make movies and wanted the whole world to see them. It was at a screening of a pilot for one of his films to studio execs that he met a woman who would change his life. Alma Brooks (Victoria Hill) was working as a secretary at the studio when she met Rupe. When they paired up, a revolutionary filmmaking duo was born. Despite opposition from the Police Commissioner himself, they produced the first true crime movie ever made in Australia: 'The Pyjama Girl Murder Case'. In the end, even the Commissioner gave it his blessing and it was an instant success. In fact, every film they ever made was shown on the big screen. Over the course of 15 years together, these mavericks managed to make a remarkable nineteen movies

An interview with the Very Rev. Dr. Themistocles Adamopoulo, Apostle to the Poor and Oppressed

Father Themistocles is an inspiration to many people in many parts of the world. He has led an extraordinarily colourful and rich life, one that reflects his own colourful and buoyant personality. Unfortunately, very little of his fascinating life is known to people, who are usually aware only of his current passionate commitment to serving the poor and oppressed in Africa. But underlying this commitment is a wealth of experience and knowledge that few of us can hope to match.

I first came into contact with Fr Themistocles as a theology student in Sydney over ten years ago, where &lsquo;Brother Themi&rsquo; (as he was affectionately known to students) would guide us through the intricacies of New Testament scholarship, Hellenistic philosophy, the Hebrew language, and the academic world in general. My friendship with Fr Themistocles has continued to grow since then, and I have always thought it worthwhile that the life and adventures of &lsquo;the polytropic Themi&rsquo; (to borrow a phrase he likes to apply to his great mentor, the apostle Paul) should be more readily known than they presently are. I hope, therefore, that the interview that follows goes some way towards fulfilling this objective (though I also hope that a more detailed account of Fr Themistocles&rsquo; life will someday be written, preferably by Fr Themistocles himself).

Geocaching : a worldwide treasure hunt enhancing the mathematics classroom

Geocaching is a global treasure hunt that invites people of all ages to discover actively the beauty of their environment through the assistance of a Global Positioning Systems (GPS), mathematical know-how, and a bit of foraging. If you are seeking a new way to engage your students in a motivating and exciting real-life task, then geocaching might be the answer. The purpose of this article is to describe the experience of our shcool-based geocaching project undertaken with children in Prep (5-6) and the senior primary Grades (ages 10-12). We will share the potential for mathematical learning and engagement. It is argued that geocaching provides the opportunity for rich engagement with key mathematical concepts that goes beyond what can be acheived during a typical lesson.

Fiji’s collared kingfishers (Todiramphus chloris vitensis) do hunt for fish in inland waters

According to the major texts on Fiji&rsquo;s birds, fish are considered to form only a small part of the collared kingfisher&rsquo;s diet, and it appears that when fish are taken, this is only in mangroves and beachpools. This article describes systematic fishing by collared kingfishers in a deep inland freshwater body.

Little Ravens 'Corvus mellori' hunt, kill and eat individuals of two species of shorebird

The Little Raven Corvus mellori is an omnivore that occasionally eats small birds. Most birds taken are thought to be eaten as carrion, though several records exist of ravens hunting and killing Budgerigars Melopsittacus undulates</i> and a Spotted Turtle-Dove Streptopelia chinensis</i> (Higgins et al. 2006). Both cases of bird depredation record Little Ravens attacking from above and stabbing prey to death with their beaks. Here, we report a pair of Little Ravens hunting, killing and eating a lone Sharp-tailed Sandpiper Calidris acuminita at Cheetham Wetlands, near Melbourne, Victoria (37° 53' 56"S, 144° 47' 33"E; 420 ha; see Antos et al. 2007 for a description). We also report an event which strongly implies they hunted and ate an adult Red-capped Plover Charadrius ruficapillus</i>, and observations of hunting and eating eggs and chicks.