Ecological bases for an I.P.M. programme for the cotton boll weevil (Anthonomus grandis Boh.) in São Paulo State, Brazil.

Since the boll weevil, Anthooomus granQis Boh., was detected io cotton üelds in São Paulo state, Brazil, in 1983, maoy ecological aspects have been studied aimiog the establishment of some Integrated Pest Maoegement (I.P.M.) strategies for its contraI. Also, many ecoloçical and behavioural differences were detected in comparison to omer conon agroecosystems, principally in the U.S.A. This situation allowed to recommend ao I.P.M programme based 00 vegetable traps, crop weekly mooitoriog, destructioo of cotton píant stalks as soon as conon was harvested and utiJization of aggregating pheromone and seletive chemicaJ insecticides

Strathconon, Scatwell and the Mackenzies in the Written Record c. 1463-c.1700

Although some writers have considered the earlier history of Ross, these studies tend to focus on dynastic and political events and not much is know about the internal workings of Ross-shire far less Strathconon in the historical record prior to the end of the fifteenth century.2 Strathconon, strategically situated in central Ross, was the key to the control of the earldom of Ross in that possession of these lands secured control of the few good access routes from coast to coast. The earldom of Ross and the possession thereof in turn was pivotal to the fortunes of the Macdonald Lords of the Isles in the fifteenth century who were fatally undermined by their loss of the area to the Stewart monarchy in 1475. This essay will consider the Strathconon and Scatwell area from the time of its earliest appearance in the historical record at the end of the fifteenth century (at much the same time as the Mackenzie clan themselves) and go on to concentrate on the area in the sixteenth and early seventeenth centuries. An attempt will be made to pull together a variety of written sources in order to try to build up a picture of the area in this period inasmuch as the evidence will allow. These lands, Strathconon and Scatwell, which form the focus of this investigation, were a small part of a much wider (and expanding) estate that was controlled in this period, c.1463 to 1700 by the Mackenzies of Kintail / Seaforth

Commentaries and post-beginners' language teaching

This paper suggests an approach to, and some of the potential benefits of, introducing work with commentaries into a post-beginners' language course and considers the ways in which working with commentaries can usefully enrich students' study across a classical studies curriculum

Interactions between parental traits, environmental harshness and growth rate in determining telomere length in wild juvenile salmon

A larger body size confers many benefits, such as increased reproductive success, ability to evade predators and increased competitive ability and social status. However, individuals rarely maximise their growth rates, suggesting that this carries costs. One such cost could be faster attrition of the telomeres that cap the ends of eukaryotic chromosomes and play an important role in chromosome protection. A relatively short telomere length is indicative of poor biological state, including poorer tissue and organ performance, reduced potential longevity and increased disease susceptibility. Telomere loss during growth may also be accelerated by environmental factors, but these have rarely been subjected to experimental manipulation in the natural environment. Using a wild system involving experimental manipulations of juvenile Atlantic salmon Salmo salar in Scottish streams, we found that telomere length in juvenile fish was influenced by parental traits and by direct environmental effects. We found that faster-growing fish had shorter telomeres and there was a greater cost (in terms of reduced telomere length) if the growth occurred in a harsher environment. We also found a positive association between offspring telomere length and the growth history of their fathers (but not mothers), represented by the number of years fathers had spent at sea. This suggests that there may be long term consequences of growth conditions and parental life history for individual longevity

Derivation of topographic feature names in the Apollo 15 landing region

Location and derivation of nomenclature for lunar topographic features in Apollo 15 landing regio

Shorter juvenile telomere length is associated with higher survival to spawning in migratory Atlantic salmon

The risk of mortality associated with a long-distance migration will depend on an animal's physiological state, as well as the prevailing ecological conditions. Here we assess whether juvenile telomere length, which in endotherms has been shown to be a biomarker of physiological state and expected lifespan, predicts whether wild Atlantic salmon Salmo salar successfully complete their marine migration. Over 1800 juvenile fish were trapped, measured, PIT-tagged and a tissue biopsy taken when migrating as juveniles down-river towards the sea. Survivors of the marine phase of the life cycle were then re-trapped and re-sampled when returning to the river to spawn as sexually mature adults, 1.5-2.5 years later. Most individuals experienced a reduction in telomere length during the marine migratory phase of their life cycle. While the relative rate of telomere loss was greater in males than females, telomere loss was unrelated to growth at sea. Contrary to expectations, salmon that had the shortest telomeres at the time of the outward migration had the greatest probability of surviving through to the return migration. This effect, independent of body size, may indicate a trade-off between investment in readiness for marine life (which favours high glucocorticoid levels, known to increase telomere attrition in other vertebrate species) and investment in telomere maintenance. Survival was also significantly influenced by the seasonal timing of outward migration, with the fish migrating downstream earliest in the spring having the highest probability of return. This study reveals that telomere length is associated with survival, although in ways that contrast with patterns seen in endotherms. This illustrates that while telomeres may be universally important for chromosome protection, the potential for telomere dynamics to predict performance may vary across taxa

Managing contextual information in semantically-driven temporal information systems

Context-aware (CA) systems have demonstrated the provision of a robust solution for personalized information delivery in the current content-rich and dynamic information age we live in. They allow software agents to autonomously interact with users by modeling the user’s environment (e.g. profile, location, relevant public information etc.) as dynamically-evolving and interoperable contexts. There is a flurry of research activities in a wide spectrum at context-aware research areas such as managing the user’s profile, context acquisition from external environments, context storage, context representation and interpretation, context service delivery and matching of context attributes to users‘ queries etc. We propose SDCAS, a Semantic-Driven Context Aware System that facilitates public services recommendation to users at temporal location. This paper focuses on information management and service recommendation using semantic technologies, taking into account the challenges of relationship complexity in temporal and contextual information

User guide to 1:250000 scale lunar maps

Background information of detailed photo base maps produced from orbital and surface experiments data derived from Apollo missions 15, 16, and 17 is presented in outline form