The Parasitoid Complex of Forest Tent Caterpillar, \u3ci\u3eMalacosoma Disstria\u3c/i\u3e (Lepidoptera: Lasiocampidae), in Eastern Wyoming Shelterbelts

A parasitoid complex affecting the forest tent caterpillar, Malacosoma disstria, was investigated during 1978-79 in shelterbelts in eastern Wyoming. Egg parasitoids included five species: Ablerus clisiocampae, Ooencyrtus clisiocampae, Telenomus clisiocampae, Tetrastichus sp. 1 and Telenomus sp. Thirteen hymenopterous species and five dipterous species were reared from larvae and pupae of the forest tent caterpillar. The most common 5th-instar larval parasitoids were the tachinid flies, Lespesia archippivora and Archytas lateralis. Of the pupal parasitoids reared, 640/0 were Diptera and 36% were Hymenoptera. Four previously unrecorded parasitoids of M. disstria were reared: Cotesia alalantae, Macrocentrus irridescens, Pimpla sanguinipes erythropus, and Lespesia flavifrons.

A study of the impact of shifting missions on senior faculty members at a select Massachusetts community college.

EducationDoctor of Education (Ed.D.

After the fall: The post-apocalyptic frontier in The Road and 28 Days Later

Previous scholars have identified three scenes of the American frontier myth: the sea, the west, and space. This evolution of frontiers reflected key changes in the expression of America’s cultural identity. While Janice Hocker Rushing called space “the final frontier,” the prominent place in contemporary society held by zombies and other minions of the occult hint at the emergence of yet another scene of the American mythos: the post apocalypse. In contrast to previous frontiers, which are defined geographically, the post-apocalypse is much broader, for in the wake of a global cataclysm, everywhere is a potential frontier. This decentralization of mythic scene reflects a crisis in consciousness within contemporary American society. Pentadic and mythic analysis of two films, The Road and 28 Days Later, illuminates the salient dimensions of the postapocalyptic frontier and provides workable solutions to this crisis

The biology of the meadow spittlebug, Philaenus leucophthalmus (L.), in Massachusetts.

Thesis (M.S.

The Priming Effects of Video Viewing on Preschoolers\u27 Play Behavior

This thesis investigates the relationship between educational television content and children‘s play behaviors immediately after viewing. Children ages 41-43 months of age were randomly assigned to view a television program with predominantly object-constructive or social dramatic content. All children participated in a period of video viewing, approximately 25 minutes in length, followed by a 30-minute play session. Each participant was subsequently administered a brief card sorting task to assess categorical knowledge of constructive and social activities. Each child‘s session was coded for looking at the television, toy choice, and play content (constructive or social-narrative). Video viewing condition and the interaction between categorical knowledge and condition significantly predicted children‘s subsequent play content. Taken as a whole, these findings imply that short-term priming effects of educational video viewing on children‘s play are present in 42-month old children but that these effects are moderated by children‘s categorical understanding of TV content

An improved time of flight gamma-ray telescope to monitor diffuse gamma-ray in the energy range 5 MeV - 50 MeV

A time of flight measuring device is the basic triggering system of most of medium and high energy gamma-ray telescopes. A simple gamma-ray telescope has been built in order to check in flight conditions the functioning of an advanced time of flight system. The technical ratings of the system are described. This telescope has been flown twice with stratospheric balloons, its axis being oriented at various Zenital directions. Flight results are presented for diffuse gamma-rays, atmospheric secondaries, and various causes of noise in the 5 MeV-50 MeV energy range

CAV-2 Vector Development and Gene Transfer in the Central and Peripheral Nervous Systems

The options available for genetic modification of cells of the central nervous system (CNS) have greatly increased in the last decade. The current panoply of viral and nonviral vectors provides multifunctional platforms to deliver expression cassettes to many structures and nuclei. These cassettes can replace defective genes, modify a given pathway perturbed by diseases, or express proteins that can be selectively activated by drugs or light to extinguish or excite neurons. This review focuses on the use of canine adenovirus type 2 (CAV-2) vectors for gene transfer to neurons in the brain, spinal cord, and peripheral nervous system. We discuss (1) recent advances in vector production, (2) why CAV-2 vectors preferentially transduce neurons, (3) the mechanism underlying their widespread distribution via retrograde axonal transport, (4) how CAV-2 vectors have been used to address structure/function, and (5) their therapeutic applications

Increase in the gastrointestinal absorption and in tissue storage of cyclophosphamide in L-1210 leukaemic mice at an advanced stage of the disease.

BDF1 mice were inoculated with 10(6) leukaemic cells and, together with control mice, were given a single oral dose of cyclophosphamide-14C of 100 mg/kg body weight. In the leukaemic mice we observed an increased 14C concentration in the plasma, bone marrow, liver, lungs, spleen, kidney and particularly fat where the level was 2-4 times higher than in control mice. Conversely, during the same period, significantly less 14C was detected in the stomach and small intestine of the leukaemic mice. These results were obtained 6 days after tumour transplantation (median survival time 7.7 days) whereas no differences were observed when the studies were carried out 4 days after tumour transplantation. These findings indicate an increase in the gastrointestinal absorption and in the tissue storage fo cyclophosphamide in L-1210 leukaemic mice at an advanced stage of the disease

Consorciação das culturas de erva-mate (Ilex paraguariensis A. St Hilaire) e feijão (Phaseolus vulgaris L.).

Este trabalho foi executado com o objetivo de medir-se o rendimento do sistema agroflorestal erva-mate/feijao (Ilex paraguariensis / Phaseolus vulgaris), comparando-se três densidades da cultura agrícola (quatro, cinco e seis linhas) e dois tipos de mudas de erva-mate (normais e pseudo-estacas), plantadas a 3x1 m. Após um ano de consórcio, com duas colheitas de feijão (safra das águas e da seca), obteve-se maior sobrevivência no campo utilizando-se pseudo-estacas (89% contra 75% das mudas normais) recomendando-se esta técnica de plantação para a espécie estudada. A produção de feijão não foi significativamente diferenciada pelas densidades populacionais, recomendando-se o uso de quatro linhas de cultura, em função da influência dos espaçamentos mais densos sobre a sobrevivência da ervamate. A altura das plantas não foi afetada pelas alternativas de consórcio empregadas. O sistema possibilitou rendas adicionais com a exploração da cultura agrícola, quase cobrindo os custos variáveis de implantação da cultura de erva-mate