Can tori arise in a two-regional model with fixed exchange rates?

A two-regional, five dimensional model describing the development of income, capital stock and money stock, which was introduced by T. Asada in [1], is analysed. Sufficient conditions are found for the existence of two pairs of purely imaginary eigenvalues and a fifth negative one for the linear approximation matrix of the model. A theorem on the existence of invariant tori is presented.dynamic model, equilibrium, linear approximatiomatrix, eigenvalues, normal form of differential equations on invariant surface, bifurcation equation, torus

Results of the Austrian-Ceylonese hydrobiological mission 1970 of the 1st Zoological Institute of the University of Vienna (Austria) and the Department of Zoology of the University of Ceylon Vidyalankara Campus, Kelaniya (Sri Lanka). Pt. 16. the Ceylonese Trichoptera

The Trichoptera collected in Sri Lanka by the Austrian Indo-Pacific expedition in autumn and winter 1970 (larvae and adults) are evaluated systematically and ecologically. The following new species are described: Pseudoneureclipsis starmuehlneri, P. maliboda (Polycentropodidae), Oecetis belihuloya (Leptoceridae), and Helcopsyche sri lanka (Helicopsychidae). Helicopsyche ceylanica Brauer 1866 is re-described. Several types of larvae and cases of Hydropsyche (Hydropsychidae), Ceylanopsyche (Sericostomatidae) and Helicopsyche are described or at least roughly characterised. According to the larval characters the genus Ceylanopsyche seems to belong to Sericostomatidae s. str

Experiment in Raising of Sharp-Tailed Grouse

Describes the attempt to hatch 6 sharp-tailed grouse eggs. Harold Milton Bus Malicky, Burwell, Nebraska, July 1958

Experiment in Raising of Prairie Chicken

Describes an experiment to try to hatch 16 prairie chicken eggs. Harold Bus Milton Malicky, Burwell, Nebraska, May 1958

The altitudinal distribution of Trichoptera species in Mae Klang catchment on Doi Inthanon, Northern Thailand : stream zonation and cool- and warm-adapted groups : studies on caddisflies of Thailand no 16

La distribution altudinale des Trichoptères du bassin du Mae Klang qui s'étage entre 400 et 2300 m d'altitude est décrite. C'est probablement la première publication sur ce thème réalisée en zone tropicale et fondée sur une recherche faunistique complète. La plupart des familles de Trichoptères sont représentées par une série d'espèces se succédant des plus hautes aux plus basses stations. Les groupes "adapté au froid" et "adapté au chaud" sensu Ross sont hypothétiques et n'existent probablement pas. Mais il y a des espèces adaptées au froid ou au chaud. Cela est particulièrement net dans le genre #Rhyacophila qui était considéré comme "adapté au froid" et dans le genre #Chimarra qui était considéré comme "adapté au chaud". Nos résultats n'indiquent aucune différence entre ces deux genres. Nous avons rencontré les richesses spécifiques maximales aux altitudes intermédiaires sur le Mae Klang, entre 1200 et 1700 m, où la variation de la température de l'eau est minimale. (D'après résumé d'auteur

Master\u27s Project: Impacts to Natural Resources and the Natural Environment from Large-Scale Solar Facilities in Vermont: An Analysis of Public Utilities Commission Documents

Renewable energy deployment and conserving biodiversity are both related to mitigating and preventing the worst effects of climate change. These issues require careful consideration of land use and the consequences associated with land use choices. Large-scale ground-mounted photovoltaic solar energy is a promising clean energy technology, as it can be flexibly deployed, produces low lifecycle carbon emissions compared to other energy sources, and is cost competitive. However, questions remain about how large-scale solar will affect ecological functionality of the Vermont landscape. This report evaluates how the Vermont Public Utility Commission, the Vermont Agency of Natural Resources, and other parties to siting ground-mounted solar evaluate the ecological impacts from large-scale solar energy. It includes interviews with experts involved in solar siting issues, a review quantifying stipulations issued by regulators to avoid undue adverse impacts on protected natural resources, and an analysis reviewing common stipulations across all large-scale solar installations sited in Vermont. The analysis reveals a pattern of development favoring farmland and areas with no zoning designation near populated areas. Incentives to deploy 2.2 MW or smaller arrays appeared to have fewer natural resource concerns compared to larger installations. Impacts to grassland bird habitats, abutting forest blocks, soil erosion, and rare, threatened, or endangered species were commonly raised across developments. To improve solar siting and mitigate impacts to environmental resources, increased monitoring requirements and improved coordination between state and local governments solar should be considered by the state to facilitate low-impact developments at the local level

Phonological Awareness and Reading: An Alternative Interpretation of the Literature from a Clinical Perspective

Many researchers have concluded that there is a strong causal relationship between phonological awareness and reading, and that deficiency in phonological awareness is a major factor in reading problems. This article provides an alternative interpretation based on a critical analysis of the research literature and three clinical case studies. On the basis of our results, we hypothesize that rather than phonemic awareness per se, what seems to be essential to learning to read is that children develop an understanding of the connections between oral and written language. At the macrolevel this involves an understanding that written words represent words in oral language. At the microlevel it involves understanding that letters in written words stand for phonemes in spoken words.Plusieurs chercheurs s'entendent pour conclure d'une part, qu'il existe une forte relation de cause à effet entre l'éveil au phonème et la lecture et d'autre part, qu'une faiblesse en ce qui concerne cet éveil constitue un facteur important dans les troubles de lecture. Cet article présente une autre interprétation qui est basée sur une analyse critique de la documentation sur la recherche ainsi que sur trois études de cas cliniques. Les résultats que nous avons obtenus nous mènent à la conclusion que ce qui semble essentiel à l'apprentissage de la lecture n'est pas l'éveil au phonème comme tel mais plutôt la prise de conscience chez l'enfant des liens entre la langue orale et la langue écrite. Au niveau macrologique, cela implique la prise de conscience que les mots écrits représentent les mots du parlé. Au niveau micrologique, cela implique la prise de conscience que les lettres de l'écrit représentent les phonèmes de l'oral

Revision der Gattung Mesophylax McLachlan (Trichoptera, Limnephilidae).

Im Ergebnis einer Revision der Gattung Mesophylax McL. 1882 wurden alle bekannten Arten sowie die Taxa M. arabicus n. sp. und M. aspersus hoggarensis n. ssp. beschrieben und abgebildet. M. aduncus Navas 1923 wird als Unterart von M. impunctatus erkannt.Nomenklatorische Handlungenarabicus Malicky, 1998 (Mesophylax), spec. n.hoggarensis Malicky, 1998 (Mesophylax aspersus), sspec. n.aduncus Navás, 1923 (Mesophylax impunctatus), stat. n. hitherto Stenophylax aduncusThe genus Mesophylax McL. 1882 is revised. M. arabicus n. sp. and M. aspersus hoggarensis n. ssp. are described. M. aduncus Navas 1923 is regarded as a subspecies of M. impunctatus. All known taxa of the genus are described and figured. Nomenclatural Actsarabicus Malicky, 1998 (Mesophylax), spec. n.hoggarensis Malicky, 1998 (Mesophylax aspersus), sspec. n.aduncus Navás, 1923 (Mesophylax impunctatus), stat. n. hitherto Stenophylax aduncu