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3,897 results on '"Jefferson, Thomas A."'

154. In vitro inhibition mechanisms of Trichoderma yunnanenseTM10 against Pyricularia oryzaeand Rhizoctonia solanicausing blast and sheath blight diseases in rice (Oryza sativaL.)

Author

Prismantoro, Dedat, Jefferson, Thomas Argyarich, Akbari, Sulistya Ika, Miranti, Mia, Mispan, Muhamad Shakirin, and Doni, Febri

Abstract

Blast and sheath blight diseases, caused by Pyricularia oryzaeand Rhizoctonia solani, respectively, are major threats to rice production worldwide. Efforts should be made to limit the spread of these phytopathogens, preferably through sustainable methods. In this study, we investigated the antagonistic potential of the local isolate Trichoderma yunnanenseTM10 against the pathogenic fungi P. oryzaeand R. solani. The results demonstrated that T. yunnanenseTM10 inhibited the growth of P. oryzaeand R. solanithrough mechanisms such as competition, mycoparasitism, and antibiosis. Dual culture, filtrate culture, and double plate assays showed that T. yunnanenseTM10 could inhibit the growth of both P. oryzaeand R. solani. Slide culture and scanning electron microscope (SEM) tests confirmed that T. yunnanenseTM10 exhibited mycoparasitic activity, including attachment, coiling, penetration, lysis, and destruction of pathogen hyphae. Additionally, T. yunnanenseTM10 was capable of producing cell wall-degrading enzymes (CWDEs) such as chitinase and cellulase, as well as volatile organic compounds (VOCs) such as hydrogen cyanide (HCN). The multifaceted abilities of T. yunnanenseTM10 for limiting the growth of P. oryzaeand R. solaniunderscore its potential as an effective biocontrol agent for enhancing productivity and sustainability in rice cultivation.

Published
2024
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161. Notes on the state of Virginia.

Author

Jefferson, Thomas, 1743-1826, New York Public Library (archive.org), and Jefferson, Thomas, 1743-1826

Subjects
d. 1780, Logan, James, Tobacco, Tobacco industry, Virginia
Published
1832

162. Washington, Jefferson, Lincoln, and agriculture. Bureau of Agricultural Economics, United States Department of Agriculture, November 1937.

Author

United States. Bureau of Agricultural Economics, Edwards, Everett Eugene, 1900, Jefferson, Thomas, 1743-1826, Lincoln, Abraham, 1809-1865, Washington, George, 1732-1799, University Library, University of Illinois Urbana Champaign, United States. Bureau of Agricultural Economics, Edwards, Everett Eugene, 1900, Jefferson, Thomas, 1743-1826, Lincoln, Abraham, 1809-1865, and Washington, George, 1732-1799

Subjects
Agriculture, United States
Published
1937

163. Over-winter behavior and annual survival of Pygoscelid penguins in the South Shetland Islands

Author

Hinke, Jefferson Thomas

Subjects
Dissertations, Academic Marine Biology. (Discipline) UCSD
Abstract

Pygoscelid penguin populations throughout the Antarctic Peninsula region have changed rapidly in recent decades. Ongoing climate change is thought to underpin these changes through bottom-up effects on habitat suitability and prey availability, ultimately affecting penguin behavior, survival and reproduction. To quantify winter behavior and energetic requirements required to support winter activity and to estimate population-level consequences of variation in survival rates under conditions of rapid climate change, this dissertation investigates two projects, each using a different penguin species. Daily activity and energetic demands during winter were estimated for gentoo penguins (Pygoscelis papua) using data from archival temperature tags. Foraging trip frequencies ranged from 0.85 to 1.0 trips day⁻¹ and total trip durations were positively correlated with day length. Mean daily food requirements, based on a mixed diet of fish and krill (Euphausia superba) were estimated at 0.70 ± 0.12 kg day⁻¹. Early winter foraging trips matched day length better than late winter foraging trips, suggesting that individuals maximized foraging time during the early winter period to recover body mass following the breeding season and molt. The attenuated response of foraging trip durations to increasing day length in late winter may be related to differences in local resource availability or individual behaviors prior to the upcoming breeding season. To investigate population-level consequences of variation in survival rates, data from long-term mark-recapture studies of Adélie penguins (Pygoscelis adeliae) were integrated in a stochastic population model to estimate the risk of local extirpation. No trends in survival rates were evident, and variability in survival rates was poorly explained by the selected suite of environmental covariates. Stochastic projections based on the extant variability of survival rates suggests that small increases in the frequency of years with poor survival result in a rapid increase in risk of near-term local extirpation. Compared to other populations of Adélie penguins around the Antarctic continent, survivorship and population growth rates were lowest in the northern Antarctic Peninsula region. Despite no simple correlations with environmental indices, it is readily apparent that Adélie penguins are vulnerable to the rapid environmental changes that are occurring in the Antarctic Peninsula region

Published
2012

164. Dynamic financial planning: certainty equivalents, stochastic constraints and functional conjugate duality

Author

Jefferson, Thomas R. and Scott, Carlton H.

Subjects
Management science -- Analysis, Financial planning -- Forecasts and trends, Stochastic analysis -- Forecasts and trends, Market trend/market analysis, Business, Engineering and manufacturing industries
Abstract

This paper studies portfolios under risk and stochastic constraints. Certainty equivalents combine risk aversion and exponential utility to form the objective. Budget and stochastic constraints on the account balance are used to ensure a positive net worth over time. These portfolio models are analyzed by functional conjugate duality for general distributions and by conjugate duality for the normal distribution. All the programs are convex. The duals provide insight into this approach and relate it to other stochastic and financial concepts., 1. Introduction One of the major thrusts in financial engineering is the management and optimization of risky portfolios. Although this is a well-researched area (Merton, 1990), it is still a [...]

Published
2005

181. The Papers of Thomas Jefferson, Retirement Series, Volume 9 : 1 September 1815 to 30 April 1816

Author

Jefferson, Thomas, LOONEY, J. JEFFERSON, EDITOR, HAGGARD, ROBERT F., SENIOR ASSOCIATE EDITOR, LAUTENSCHLAGER, JULIE L., ASSOCIATE EDITOR, HICKMAN, ELLEN C., PATRICK, CHRISTINE STERNBERG, FRANCAVILLA, LISA A., MANAGING EDITOR, GRAY, ANDREA R., VITERBO, PAULA, CRITTENDEN, CATHERINE COINER, SPENGLER, SUSAN, Jefferson, Thomas, LOONEY, J. JEFFERSON, HAGGARD, ROBERT F., LAUTENSCHLAGER, JULIE L., HICKMAN, ELLEN C., PATRICK, CHRISTINE STERNBERG, FRANCAVILLA, LISA A., GRAY, ANDREA R., VITERBO, PAULA, CRITTENDEN, CATHERINE COINER, and SPENGLER, SUSAN

Published
2018
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182. The Papers of Thomas Jefferson, Retirement Series, Volume 4 : 18 June 1811 to 30 April 1812

Author

Jefferson, Thomas, LOONEY, J. JEFFERSON, EDITOR, HAGGARD, ROBERT F., PERDUE, SUSAN HOLBROOK, LAUTENSCHLAGER, JULIE L., ASSISTANT EDITOR, FRANCAVILLA, LISA A., MANAGING EDITOR, HICKMAN, ELLEN C., BECKEL, DEBORAH, CRITTENDEN, CATHERINE COINER, SPENGLER, SUSAN, Jefferson, Thomas, LOONEY, J. JEFFERSON, HAGGARD, ROBERT F., PERDUE, SUSAN HOLBROOK, LAUTENSCHLAGER, JULIE L., FRANCAVILLA, LISA A., HICKMAN, ELLEN C., BECKEL, DEBORAH, CRITTENDEN, CATHERINE COINER, and SPENGLER, SUSAN

Published
2018
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183. The Papers of Thomas Jefferson, Retirement Series, Volume 1 : 4 March 1809 to 15 November 1809

Author

Jefferson, Thomas, LOONEY, J. JEFFERSON, EDITOR, PERDUE, SUSAN HOLBROOK, HAGGARD, ROBERT F., ANDERSON, JILL E., BARNES, L. DIANE, LAUTENSCHLAGER, JULIE L., HACKFORD, HEIDI M., MANAGING/ELECTRONIC EDITOR, FRANCAVILLA, LISA, EDITORIAL ASSISTANT, BOUCHER, JULIANA M., CRITTENDEN, CATHERINE COINER, JONES, KEVIN B., STOREY, JAYNE C., Jefferson, Thomas, LOONEY, J. JEFFERSON, PERDUE, SUSAN HOLBROOK, HAGGARD, ROBERT F., ANDERSON, JILL E., BARNES, L. DIANE, LAUTENSCHLAGER, JULIE L., HACKFORD, HEIDI M., FRANCAVILLA, LISA, BOUCHER, JULIANA M., CRITTENDEN, CATHERINE COINER, JONES, KEVIN B., and STOREY, JAYNE C.

Published
2018
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185. The Papers of Thomas Jefferson: Retirement Series, Volume 13 : 22 April 1818 to 31 January 1819

Author

Jefferson, Thomas, LOONEY, J. JEFFERSON, EDITOR, HAGGARD, ROBERT F., SENIOR ASSOCIATE EDITOR, LAUTENSCHLAGER, JULIE L., ASSOCIATE EDITOR, HICKMAN, ELLEN C., GRAY, ANDREA R., FRANCAVILLA, LISA A., MANAGING EDITOR, VITERBO, PAULA, DAHM, KERRY, SPENGLER, SUSAN, TECHNICAL SPECIALIST, COINER, CATHERINE CLARKE, SENIOR DIGITAL TECHNICIAN, Jefferson, Thomas, LOONEY, J. JEFFERSON, HAGGARD, ROBERT F., LAUTENSCHLAGER, JULIE L., HICKMAN, ELLEN C., GRAY, ANDREA R., FRANCAVILLA, LISA A., VITERBO, PAULA, DAHM, KERRY, SPENGLER, SUSAN, and COINER, CATHERINE CLARKE

Published
2018
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186. The Papers of Thomas Jefferson, Retirement Series, Volume 6 : 11 March to 27 November 1813

Author

Jefferson, Thomas, LOONEY, J. JEFFERSON, EDITOR, HAGGARD, ROBERT F., ASSOCIATE EDITOR, LAUTENSCHLAGER, JULIE L., BECKEL, DEBORAH, FRANCAVILLA, LISA A., MANAGING EDITOR, HICKMAN, ELLEN C., VITERBO, PAULA, CRITTENDEN, CATHERINE COINER, SENIOR DIGITAL TECHNICIAN, SPENGLER, SUSAN, DIGITAL TECHNICIAN, Jefferson, Thomas, LOONEY, J. JEFFERSON, HAGGARD, ROBERT F., LAUTENSCHLAGER, JULIE L., BECKEL, DEBORAH, FRANCAVILLA, LISA A., HICKMAN, ELLEN C., VITERBO, PAULA, CRITTENDEN, CATHERINE COINER, and SPENGLER, SUSAN

Published
2018
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187. The Papers of Thomas Jefferson: Retirement Series, Volume 12 : 1 September 1817 to 21 April 1818

Author

Jefferson, Thomas, LOONEY, J. JEFFERSON, EDITOR, HAGGARD, ROBERT F., SENIOR ASSOCIATE EDITOR, LAUTENSCHLAGER, JULIE L., ASSOCIATE EDITOR, GRAY, ANDREA R., PATRICK, CHRISTINE STERNBERG, HICKMAN, ELLEN C., FRANCAVILLA, LISA A., MANAGING EDITOR, VITERBO, PAULA, DAHM, KERRY, SPENGLER, SUSAN, TECHNICAL SPECIALIST, COINER, CATHERINE CLARKE, SENIOR DIGITAL TECHNICIAN, Jefferson, Thomas, LOONEY, J. JEFFERSON, HAGGARD, ROBERT F., LAUTENSCHLAGER, JULIE L., GRAY, ANDREA R., PATRICK, CHRISTINE STERNBERG, HICKMAN, ELLEN C., FRANCAVILLA, LISA A., VITERBO, PAULA, DAHM, KERRY, SPENGLER, SUSAN, and COINER, CATHERINE CLARKE

Published
2018
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193. The Papers of Thomas Jefferson, Volume 26 : 11 May-31 August 1793

Author

Jefferson, Thomas, CATANZARITI, JOHN, EDITOR, SHERIDAN, EUGENE R., SENIOR ASSOCIATE EDITOR, LOONEY, J. JEFFERSON, ASSOCIATE EDITOR, BLAZEJEWSKI, ELIZABETH PETERS, EDITORIAL ASSISTANT, LE SAUX, JEAN-YVES M., CONSULTING EDITOR, Jefferson, Thomas, CATANZARITI, JOHN, SHERIDAN, EUGENE R., LOONEY, J. JEFFERSON, BLAZEJEWSKI, ELIZABETH PETERS, and LE SAUX, JEAN-YVES M.

Published
2018
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194. The Papers of Thomas Jefferson, Volume 27 : 1 September to 31 December 1793

Author

Jefferson, Thomas, CATANZARITI, JOHN, EDITOR, SHERIDAN, EUGENE R., SENIOR ASSOCIATE EDITOR, LOONEY, J. JEFFERSON, ASSOCIATE EDITOR, BLAZEJEWSKI, ELIZABETH PETERS, MONACO, LINDA, LE SAUX, JEAN-YVES M., CONSULTING EDITOR, Jefferson, Thomas, CATANZARITI, JOHN, SHERIDAN, EUGENE R., LOONEY, J. JEFFERSON, BLAZEJEWSKI, ELIZABETH PETERS, MONACO, LINDA, and LE SAUX, JEAN-YVES M.

Published
2018
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195. The Papers of Thomas Jefferson, Volume 36 : 1 December 1801 to 3 March 1802

Author

Jefferson, Thomas, OBERG, BARBARA B., EDITOR, McCLURE, JAMES P., PASCU, ELAINE WEBER, KING, MARTHA J., ASSOCIATE EDITOR, DOWNEY, TOM, SPECKART, AMY, MONACO, LINDA, EDITORIAL ASSISTANT, LITTLE, JOHN E., RESEARCH ASSOCIATE, Jefferson, Thomas, OBERG, BARBARA B., McCLURE, JAMES P., PASCU, ELAINE WEBER, KING, MARTHA J., DOWNEY, TOM, SPECKART, AMY, MONACO, LINDA, and LITTLE, JOHN E.

Published
2018
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196. The Papers of Thomas Jefferson, Volume 25 : 1 January-10 May 1793

Author

Jefferson, Thomas, CATANZARITI, JOHN, EDITOR, SHERIDAN, EUGENE R., SENIOR ASSOCIATE EDITOR, LOONEY, J. JEFFERSON, ASSOCIATE EDITOR, HOEMANN, GEORGE H., LESTER, RUTH W., BLAZEJEWSKI, ELIZABETH PETERS, EDITORIAL ASSISTANT, Jefferson, Thomas, CATANZARITI, JOHN, SHERIDAN, EUGENE R., LOONEY, J. JEFFERSON, HOEMANN, GEORGE H., LESTER, RUTH W., and BLAZEJEWSKI, ELIZABETH PETERS

Published
2018
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200. The Papers of Thomas Jefferson, Volume 40 : 4 March to 10 July 1803

Author

Jefferson, Thomas, OBERG, BARBARA B., EDITOR, MCCLURE, JAMES P., PASCU, ELAINE WEBER, DOWNEY, TOM, KING, MARTHA J., WHITLEY, W. BLAND, ASSISTANT EDITOR, MONACO, LINDA, EDITORIAL ASSISTANT, LITTLE, JOHN E., Jefferson, Thomas, OBERG, BARBARA B., MCCLURE, JAMES P., PASCU, ELAINE WEBER, DOWNEY, TOM, KING, MARTHA J., WHITLEY, W. BLAND, MONACO, LINDA, and LITTLE, JOHN E.

Published
2018
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