38 research outputs found

    Describing Signatures: a Key to Successful use of Remote Sensing for Forest Damage AssessmentDescrevendo Assinaturas: a Chave para o Uso Bem Sucedido do Sensoriamento Remoto para Avaliação dos Danos Florestais

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    Forest damage caused by a variety of agents: wildfire, climatic events, mammals, insects and diseases is often highly visible and can be assessed by remote sensing. Certain characteristics of the damage, as seen via remote sensing, can provide clues to the identity of the agent(s) responsible for the damage. These include the ability to recognize the host tree(s) affected, color and texture of the foliage of affected trees, distribution of damage, size of affected trees and portion of tree crown affected. Examples are provided from the United States and southern Brazil of how combinations of these characteristics are helpful in the identification of damaging forest agents during aerial sketchmap surveys, interpretation of large to medium scale aerial photos or airborne video imagery.Resumo Danos florestais causados por uma variedade de agentes: incêndios, eventos climáticos, mamíferos, insetos e doenças é frequentemente muito visível e pode ser avaliado por sensoriamento remoto. Certas características do dano, como vistos por sensoriamento remoto, podem proporcionar indícios para identificar o(s) agente(s) responsável pelo dano. Estas incluem a habilidade em reconhecer a(s) árvores hospedeiras afetadas, a cor e textura da folhagem da árvore atacada, a distribuição do dano, o tamanho das árvores afetadas e as partes da copa afetada. Exemplos são fornecidos dos Estados Unidos e do sul do Brasil de como as combinações dessas características são valiosas na identificação dos agentes causadores de danos durante os levantamentos aéreos expeditos, a interpretação de fotografias aéreas em escalas grandes a médias ou de imagens aéreas de vídeo

    2013 Colorado forest insect and disease update

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    The reports describes "an annual investigation of critical forest health issues, including the identification of priority areas across the state where current forest conditions demand timely action." They are intended to "expand Coloradans' knowledge of and interest in our state's forest resources.".Reports produced by the Colorado State Forest Service in conjunction with Colorado Department of Natural Resources, Division of Forestry.Includes bibliographical references.January 2014.Includes the 2013 Colorado forest insect and disease update supplement.The theme of the 2013 report is Caring for Colorado's Forests: Today's Challenges, Tomorrow's Opportunities. How best to care for this vital resource has been a major topic of discussion. This year's report focuses on the values our forests provide and includes several examples of the successful collaborative forest management programs that were created to address the impacts of mountain pine beetle, threats associated with wildfire, and protection of critical watersheds and other values at risk. Hopefully theseexamples will lead to the identification of other potential solutions to the challenges our forests are facing. One thing is clear: forest stewardship is best achieved through the collective efforts of private landowners, public land managers, non-governmentalconservation organizations, elected officials and other interested stakeholders. The mission of the Colorado State Forest Service is to "achieve stewardship of Colorado's diverse forest environments for the benefit of present and future generations." At no time in Colorado's history has the CSFS mission been so relevant - and working with stakeholders to identify and implement innovative programs will help us further our mission

    Comparison of the Safety and Pharmacokinetics of ST-246® after IV Infusion or Oral Administration in Mice, Rabbits and Monkeys

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    ST-246® is an antiviral, orally bioavailable small molecule in clinical development for treatment of orthopoxvirus infections. An intravenous (IV) formulation may be required for some hospitalized patients who are unable to take oral medication. An IV formulation has been evaluated in three species previously used in evaluation of both efficacy and toxicology of the oral formulation. plasma concentrations. These effects were eliminated using slower IV infusions. associated toxicity. Shorter infusions at higher doses in NHP resulted in decreased clearance, suggesting saturated distribution or elimination. Elimination half-lives in all species were similar between oral and IV administration. The administration of ST-246 was well tolerated as a slow IV infusion
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