5,919 research outputs found

    Ecophysiological controls on water use of tropical cloud forest trees in response to experimental drought

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    Tropical montane cloud forests (TMCFs) are expected to experience more frequent and prolonged droughts over the coming century, yet understanding of TCMF tree responses to moisture stress remains weak compared to the lowland tropics. We simulated a severe drought in a throughfall reduction experiment (TFR) for two years in a Peruvian TCMF and evaluated the physiological responses several dominant species (Clusia flaviflora, Weinmannia bangii, Weinmannia crassiflora, Prunus integrifolia). Measurements were taken of: i) sap flow ii) diurnal cycles of stem shrinkage, stem moisture variation, and water use; iii) intrinsic water use efficiency (iWUE) estimated from foliar δ13C. In Weinmannia bangii, we used dendrometers and volumetric water content (VWC) sensors to quantify daily cycles of stem water storage. In two years of sap flow (Js) data, we found a threshold response of water use to VPD > 1.07 kPa independent of treatment, though control trees used more soil water than the treatment trees. The daily decline in water use in the TFR trees was associated with a strong reduction in both morning and afternoon Js rates at a given VPD. Soil moisture also affected the hysteresis strength between Js and VPD. Reduced hysteresis under moisture stress implies that TMCFs are strongly dependent on shallow soil water. Additionally, we suggest that hysteresis can serve as a sensitive indicator of environmental constraints on plant function. Finally, six months into the experiment, the TFR treatment significantly increased iWUE in all study species. Our results highlight the conservative behavior of TMCF tree water use under severe soil drought and elucidates physiological thresholds related to VPD and its interaction with soil moisture. The observed strongly isohydric response likely incurs a cost to the carbon balance of the tree, and reduces overall ecosystem carbon uptake

    Letter from T.H. Hayes, Jr. to Attorney Henry M. Beaty Jr

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    A letter of recommendation for Russell B. Sugarmon, Jr. to be admitted to the bar in Memphis and Shelby County. The author commends his ability, character, and family background

    O atendimento a clientes internos em uma Instituição de Ensino Superior

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    Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Engenharia de Produção.Este trabalho consiste no estudo da estrutura de atendimento em uma instituição de ensino superior, o Centro Universitário de Belo Horizonte, e na análise do nível de satisfação dos clientes internos e externos desse estabelecimento de ensino. Para o desenvolvimento deste objetivo central, foi elaborado um estudo sobre a importância do homem nas organizações. Além disso, os principais autores do endomarketing - Brum (1998, 2000), Cerqueira (1994) e Bekin (1995) - entre outras publicações sobre o tema, também foram analisados. A adequação da cultura organizacional e projetos de endomarketing que focam a excelência do atendimento também foram abordados. Tais estudos permitiram explorar uma lógica simples mas pouco utilizada na prática organizacional: a satisfação do público interno se reflete diretamente na satisfação do externo

    Felton M. Johnston with Senator Robert M. La Follette Jr., Senator Pat Harrison, White House Press Secretary Stephen Early, and unidentified man.

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    Handwritten signatures: Pat Harrison, [name illegible], Robert M. La Follette Jr., Stephen Earlyhttps://egrove.olemiss.edu/fmjohnston/1071/thumbnail.jp

    Memorandum to Colonel W. L. Magill, Jr. Provost Marshal and Director of Evacuation

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    Memorandum to the Colonel W.L. Magill Jr., Provost Marshal and Director of Evacuation presumably from a committee with the following members: Galen M. Fisher, Gordon Chapman, C. A. Richardson, and F. H. Smith. The memo includes the following subtitles: General Purpose and General Considerations.The Bishop James Chamberlain Baker Collection includes letters, documents, and articles about Japanese Americans during World War II. Subjects in the collection include Japanese Americans mass removal, Pearl Harbor and the aftermath, religion, and support from the non-Japanese American community. The collection was digitized and made accessible online by CSUDH Gerth Archives and Special Collections

    Great God o'er all to thee I cry, Oh listen to my prayer [first line]

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    strophicpiano and voiceTo Miss Abby Fay, as sung by her at St. Peter's.Johns Hopkins University, Levy Sheet Music Collection, Box 130, Item 063aComposed by John M. Loretz, Jr., Organist of St. Peter's Church, Brooklyn, L.I. Words by J.M. Richards.[Abby Fay

    Great God o'er all to thee I cry, Oh listen to my prayer [first line]

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    strophicpiano and voiceTo Miss Abby Fay, as sung by her at St. Peter's.Johns Hopkins University, Levy Sheet Music Collection, Box 130, Item 063aComposed by John M. Loretz, Jr., Organist of St. Peter's Church, Brooklyn, L.I. Words by J.M. Richards.[Abby Fay

    Portrait of Senator Thomas Carey Hennings, Jr.

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    Handwritten inscription: \u27To my good friend Felton M. Johnston with highest admiration and esteem. Thom C. Hennings Jr.\u27https://egrove.olemiss.edu/fmjohnston/1203/thumbnail.jp

    Dr. Robert M. Franklin Jr., Interviewed by Loretta Parham, August 18, 2012

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    Video interviews with a complementing monograph providing reflections of former presidents of Historically Black Colleges and Universities discussing leadership, mission, challenges, successes, and issues of race and education. Interviewer: Loretta Parham, CEO & Library Director, Atlanta University Center Robert W. Woodruff Library. Interviewee: Dr. Robert M. Franklin Jr., President, Interdenominational Theological Center 1997-2002; President, Morehouse College 2007-2012
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