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25,735 results found
We detected Heartland virus (HRTV) in lone star nymphs collected in 2018 in northern Alabama, USA. Real-time reverse transcription PCR selective for the small segment of the HRTV genome and confirmatory sequencing of positive samples showed high identity with HRTV strains sequenced from Tennessee…
Author(s): Brent C. Newman, William B. Sutton, Abelardo C. Moncayo, Holly R. Hughes, Ali Taheri, Thomas C. Moore, Callie J. Schweitzer, Yong Wang
Keywords: HRTV, Heartland virus
Source: Emerging Infectious Diseases
Year: 2020
To assist forest managers in balancing an increasing diversity of resource objectives, we developed a toolkit modeling approach for sustainable forest management (SFM). The approach inserts a meta-modeling strategy into a collaborative modeling framework grounded in adaptive management philosophy…
Author(s): Brian R. Sturtevant, Andrew Fall, Daniel D. Kneeshaw, Neal P. P. Simon, Michael J. Papaik, Kati Berninger, Frederik Doyon, Don G. Morgan, Christian Messier
Keywords: decision support, ecosystem management, forest sustainability, interdisciplinary modeling, land planning, participatory modeling, scaling
Source: Ecology and Society 12(2):1-12
Year: 2007
Air pollution and acidic deposition can influence forest tree growth and survival by causing ionic imbalances in the rooting zone. Altered nutrient status suppresses tree growth and weakens its immune system. Internal infections spread more quickly in response to weakened tree defenses. As adverse…
Author(s): Walter C. Shortle, Rakesh Minocha
Source: Advanced Ion Chromatography. 2: 299-309.
Year: 1990
Urban planners acquire open space to protect natural areas and provide public access to recreation opportunities. Because of limited budgets and dynamic land markets, acquisitions take place sequentially depending on available funds and sites. To address these planning features, we formulated a…
Author(s): Robert G. Haight, Stephanie A. Snyder, Charles S. Revelle
Keywords: Chicago, optimization, public access, site selection model, species representation
Source: Conservation Biology 19:327-337.
Year: 2005
We extend existing stand-level models of forest landowner behavior in the presence of fire risk to include the level and timing of fuel management activities. These activities reduce losses if a stand ignites. Based on simulations, we find the standard result that fire risk reduces the optimal…
Author(s): Gregory S. Amacher, Arun S. Malik, Robert G. Haight
Source: Land Economics 81:284-302.
Year: 2005
This paper describes a fast reliable, and a sensitive technique for the separation and quantification of dansylated polyamines by high-performance liquid chromatography. Using a small 33 x 4.6 mm I.D., 3 ?m particle size, C18 reversed-phase cartridge column and a linear gradient of acetonitrile-…
Author(s): Subhash C. Minocha, Rakesh Minocha, Cheryl A. Robie
Source: Journal of Chromatography. 511: 177-183.
Year: 1990
Changes in the activites of S-adcnosylmethionine (SAM) synthetase (methionine adenosyltransferase, EC and SAM decarboxylase (EC were studied in carrot (Daucus carota) cell cultures in response to 2,4-dichlorophenoxyacetic acid (2,4-D) and several inhibitors of polyamine…
Author(s): S.C. Minocha, R. Minocha, A. Komamine
Keywords: Cyclohexylaminonium sulfate, 2, 4-dichlorophcnoxyacetic acid, difluoromethylarginine, difluoromethylornithine, methylglyoxal bis(guanylhydrazone)
Source: Plant Physiology and Biochemistry. 29: 231-237.
Year: 1991
Various inhibitors of polyamine biosynthesis were used to study the role of polyamines in DNA synthesis and cell division in suspension cultures of Catharanthus roseus (L) G. Don. Arginine decarboxylase (ADC; EC was the major enzyme responsible for putrescine production. DL α-…
Author(s): R. Minocha, S.C. Minocha, A. Komamine, W.C. Shortle
Source: Plant Cell Reports. 10: 126-130.
Year: 1991
Increased aluminum (Al) solubility in soil waters due to acid precipitation has aroused considerable interest in the problem of Al toxicity in plants. In the present study, an in vitro suspension culture system of Catharanthus roseus (L.) G. Don was used to analyze the effects of aluminum on…
Author(s): Rakesh Minocha, Subhash C. Minocha, Stephanie L. Long, Walter C. Shortle
Keywords: aluminum, arginine decarboxylase, calcium, Catharanthus roseus, ions, magnesium, polyamines, S-adenosylmethionine decarboxylase
Source: Physiologia Plantarum. 85: 417-424.
Year: 1992
Two simple and fast methods for the extraction of major inorganic cations (Ca, Mg, Mn, K) from small quantities of stemwood and needles of woody plants were developed. A 3.2- or 6.4-mm cobalt drill bit was used to shave samples from disks and increment cores of stemwood. For ion extraction, wood (…
Author(s): Rakesh Minocha, Walter C. Shortle
Source: Canadian Journal of Forest Research. 23: 1645-1654.
Year: 1993