A Limnological Investigation of a Large Arctic Lake, Nettilling Lake, Baffin Island

Reports the physical and chemical data obtained from a 1956 survey of this lake in south-central Baffin. Its geographical location, morphometry, ice, temperature, and transparency are outlined, also its oxygen and mineral content. Fish, bottom fauna, and plankton crustaceans collected are listed, including some new to the Nearctic and some northernmost records. Thermal conditions in arctic lakes are discussed, as are differences between the two morphological regions of Nettilling, and restricted distributions of some of its organisms

Entomological Studies in the Lake Hazen Area, Ellesmere Island, Including Lists of Species of Arachnida, Collembola, and Insecta

Notes investigations in 1961 and 1962 at Camp Hazen and lists the species collected in 1961: 11 arachnid, 14 collembole, and 189 insect species; 25 others were collected in 1962. Species previously recorded in the Queen Elizabeth Islands are indicated; and a second list is given of those (15 arachnid, 17 collumbole, and 39 insects) recorded on the Islands but not taken at Camp Hazen

Research priorities for the management of the Great Barrier Reef Marine Park and the World Heritage Area 2001

The Great Barrier Reef (GBR) is the world’s largest coral reef ecosystem, comprising a huge complex of approximately 2900 reefs, 900 islands and other ecosystems (including estuaries, seagrass beds, and soft bottom communities). The GBR supports a high degree of biological diversity due to the variety of ecosystems present and the huge size of the area (>343 500km2). Due to its national and international importance, the Great Barrier Reef is also the world’s largest Marine Park and World Heritage Area

State of the Great Barrier Reef World Heritage Area Workshop : proceedings of a technical workshop held in Townsville, Queensland, Australia, 27-29 November 1995

State of the Environment Reporting is increasingly being seen as an important part of environmental management and is required at the national level as well as within several states. Although there are or have been, a number of long-standing and quite comprehensive monitoring and assessment programs on the Great Barrier Reef, the results of many of these programs have never been summarised in a management context and no overall summary of all of these programs has ever been attempted

State of the Great Barrier Reef World Heritage Area 1998

Although this report indicates numerous areas where further work is still required, it also demonstrates the breadth and depth of management commitnlent to the Great Barrier Reef World Heritage Area undertaken by the Commonwealth and Queensland Governments. In the context of other World Heritage Areas and other major coral reef systems, the Great Barrier Reef World Heritage Area compares very favourably in terms of general condition and management response

Adding Fish Oil to Whey Protein, Leucine and Carbohydrate Over a 6 Week Supplementation Period Attenuates Muscle Soreness Following Eccentric Exercise in Competitive Soccer Players

Soccer players often experience eccentric exercise-induced muscle damage given the physical demands of soccer match-play. Since long chain n-3 polyunsaturated fatty acids (n-3PUFA) enhance muscle sensitivity to protein supplementation, dietary supplementation with a combination of fish oil-derived n-3PUFA, protein, and carbohydrate may promote exercise recovery. This study examined the influence of adding n-3PUFA to a whey protein, leucine, and carbohydrate containing beverage over a six-week supplementation period on physiological markers of recovery measured over three days following eccentric exercise. Competitive soccer players were assigned to one of three conditions (2 × 200 mL): a fish oil supplement beverage (FO; n = 10) that contained n-3PUFA (1100 mg DHA/EPA - approximately 550 mg DHA, 550 mg EPA), whey protein (15 g), leucine (1.8 g), and carbohydrate (20 g); a protein supplement beverage (PRO; n = 10) that contained whey protein (15 g), leucine (1.8 g), and carbohydrate (20 g); and a carbohydrate supplement beverage (CHO; n = 10) that contained carbohydrate (24 g). Eccentric exercise consisted of unilateral knee extension/flexion contractions on both legs separately. Maximal force production was impaired by 22% during the 72-hour recovery period following eccentric exercise (p < 0.05). Muscle soreness, expressed as area under the curve (AUC) during 72-hour recovery, was less in FO (1948 ± 1091 mm × 72 h) than PRO (4640 ± 2654 mm × 72 h, p < 4 0.05) and CHO (4495 ± 1853 mm × 72 h, p = 0.10). Blood concentrations of creatine kinase, expressed as AUC, were ~60% lower in FO compared to CHO (p < 0.05) and tended to be lower (~39%, p = 0.07) than PRO. No differences in muscle function, soccer performance, or blood c-reactive protein concentrations were observed between groups. In conclusion, the addition of n-3PUFA to a beverage containing whey protein, leucine, and carbohydrate ameliorates the increase in muscle soreness and blood concentrations of creatine kinase following eccentric exercise in competitive soccer players

Adaptation of Left Ventricular Twist Mechanics in Exercise-Trained Children Is Only Evident after the Adolescent Growth Spurt.

The extent of structural cardiac remodeling in response to endurance training is maturity dependent. In adults, this structural adaptation is often associated with the adaptation of left ventricular (LV) twist mechanics. For example, an increase in LV twist often follows an expansion in end-diastolic volume, whereas a reduction in twist may follow a thickening of the LV walls. While structural cardiac remodeling has been shown to be more prominent post-peak height velocity (PHV), it remains to be determined how this maturation-dependent structural remodeling influences LV twist. Therefore, we aimed to (1) compare LV twist mechanics between trained and untrained children pre- and post-PHV and (2) investigate how LV structural variables relate to LV twist mechanics pre- and post-PHV. Left ventricular function and morphology were assessed (echocardiography) in endurance-trained and untrained boys (n = 38 and n = 28, respectively) and girls (n = 39 and n = 34, respectively). Participants were categorized as either pre- or post-PHV using maturity offset to estimate somatic maturation. Pre-PHV, there were no differences in LV twist or torsion between trained and untrained boys (twist: P = .630; torsion: P = .382) or girls (twist: P = .502; torsion: P = .316), and LV twist mechanics were not related with any LV structural variables (P &gt; .05). Post-PHV, LV twist was lower in trained versus untrained boys (P = .004), with torsion lower in trained groups, irrespective of sex (boys: P &lt; .001; girls: P = .017). Moreover, LV torsion was inversely related to LV mass (boys: r = -0.55, P = .001; girls: r = -0.46, P = .003) and end-diastolic volume (boys: r = -0.64, P &lt; .001; girls: r = -0.36, P = .025) in both sexes. A difference in LV twist mechanics between endurance-trained and untrained cohorts is only apparent post-PHV, where structural and functional remodeling were related

Enhanced Symmetries in Multiparameter Flux Vacua

We give a construction of type IIB flux vacua with discrete R-symmetries and vanishing superpotential for hypersurfaces in weighted projective space with any number of moduli. We find that the existence of such vacua for a given space depends on properties of the modular group, and for Fermat models can be determined solely by the weights of the projective space. The periods of the geometry do not in general have arithmetic properties, but live in a vector space whose properties are vital to the construction.Comment: 32 pages, LaTeX. v2: references adde