11,312 research outputs found
Ecophysiological controls on water use of tropical cloud forest trees in response to experimental drought
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
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Emmett L. Bennett, Jr. Offprint Collection
The scholarly library of Emmett L. Bennett, Jr. compiled in the course of his Editorship of the journal Nestor (founded in 1957). The collection includes scholarly publications (offprints) and manuscripts sent by prospective authors to Dr. Bennett. Includes a Finding Aid (PDF and Word) and Catalog (an Excel document for each of two record groups: offprints collected up to 1995, and offprints collected from 1995-2011). Both the Finding Aid and Catalog are provided to facilitate researchers' searches for offprints by author, title, journal, year, and subject.Classic
O atendimento a clientes internos em uma Instituição de Ensino Superior
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
A figuração pós-moderna: Marta Brum, de Anjos da Noite
Através da análise da personagem Marta Brum, de Anjos da Noite (Wilson Barros, 1987), expõem-se características do que pode ser denominado "cinema pós-moderno". Conceitos de Baudrillard e Lyotard são examinados a fim de esclarecer o que seria o pós-modernismo cinematográfico: uma estética que problematiza a referencialidade e que se pauta pela idéias de performance e jogo. O filme analisado seria um exemplar dentre vários que, desde meados dos anos oitenta, seguiram a mesma estética no cinema nacional
Letter from T.H. Hayes, Jr. to Attorney Henry M. Beaty Jr
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
Letter from Robert J. Walsh Jr., Chief, Freedom of Information/Privacy Office, Department of the Army, to Michi Weglyn, July 23, 1990
A letter from Robert J. Walsh Jr., Chief, Freedom of Information/Privacy Office, Department of the Army, to Michi Weglyn. The letter is a response to Weglyn's 1988 Freedom of Information Act (FOIA) request to the Federal Bureau of Investigation (FBI), regarding records on the Japanese American Citizenship League (JACL).These materials are from box 73 and 74 of the Frank Chin Papers. The Frank Chin Papers contain personal and professional correspondence between Frank Chin and Michi Weglyn relating to particular projects on which either author was working as well as files related to the Day of Remembrance Tribute to Michi Weglyn
Visiting author Dr. Arthur Schlesinger, Jr. at MU
Visiting author Dr. Arthur Schlesinger, Jr. at MU , b&w. Schlesinger wrote a book on disuniting America.https://mds.marshall.edu/parthenon_photo_morgue/1756/thumbnail.jp
Visiting author Dr. Arthur Schlesinger, Jr. being interviewed at MU
Visiting author Dr. Arthur Schlesinger, Jr. being interviewed at MU , b&w. Schlesinger wrote a book on disuniting America.https://mds.marshall.edu/parthenon_photo_morgue/1757/thumbnail.jp
Alf Mapp, Jr., 13th Annual ODU Literary Festival
An Eminent Scholar at Old Dominion University, Alf Mapp, Jr., is the author of six books, most recently Thomas Jefferson: A Strange Case of Mistaken Identity, cited as one of the Forty Best Books of 1987. He has written many other books and is the author of more than 800 articles in the New York Times and other metropolitan newspapers, scholarly journals, and popular magazines
Henry Adams, Jr. letter to father, February 5, 1952
This letter was written by Henry Adams Jr. to his father, Henry Adams, expressing his feelings and experiences during his time in the army. Junior, as he was called in the family, had been posted to Alaska after his basic Army training, and assigned to an otherwise all-white company.
In this three-page letter written on decorative notepaper, Junior writes about his army experiences, and says that he feels like Jackie Robinson, a test case for integrated units in the military. The United States Army was not integrated during World War II; African Americans and whites served in separate units. Harry Truman issued an executive order intended to end segregation in the Army in January of 1948, and letters such as this indicate that the executive order took some time to become fully effective
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