976 resultados para Matthaei, Frederick C., Jr.


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Seagrasses, marine flowering plants, have a long evolutionary history but are now challenged with rapid environmental changes as a result of coastal human population pressures. Seagrasses provide key ecological services, including organic carbon production and export, nutrient cycling, sediment stabilization, enhanced biodiversity, and trophic transfers to adjacent habitats in tropical and temperate regions. They also serve as “coastal canaries,” global biological sentinels of increasing anthropogenic influences in coastal ecosystems, with large-scale losses reported worldwide. Multiple stressors, including sediment and nutrient runoff, physical disturbance, invasive species, disease, commercial fishing practices, aquaculture, overgrazing, algal blooms, and global warming, cause seagrass declines at scales of square meters to hundreds of square kilometers. Reported seagrass losses have led to increased awareness of the need for seagrass protection, monitoring, management, and restoration. However, seagrass science, which has rapidly grown, is disconnected from public awareness of seagrasses, which has lagged behind awareness of other coastal ecosystems. There is a critical need for a targeted global conservation effort that includes a reduction of watershed nutrient and sediment inputs to seagrass habitats and a targeted educational program informing regulators and the public of the value of seagrass meadows.

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A liquid crystalline carbosilane dendrimer with Sc* phase has been synthesized in successive steps, resulting in the formation of defined, unimolecular compound. Twelve biphenyl mesogenic units were attached on its periphery and it has a three dimentional, treelike starburst structure. Its phase behavior was K95S(c)*103Ch118I. Compared.with its biphenyl mesogenic unit , 4-(2'-methylbutyl)-4'-(omega-hydroxyhexyl) azobenzene , which was melted at 128 degrees C and is not a liquid crystal, it is a good liquid crystal material with Sc* phase.

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KLL dielectronic recombination resonances, where a free electron is captured into the L shell and at the same time a K shell electron is excited into the L shell, have been measured for open shell iodine ions by measuring the detected yield of escaping ions of various charge states and modeling the charge balance in an electron beam ion trap. In the modeling, the escape from the trap and multiple charge exchange were considered. Extracted ions were used to measure the charge balance in the trap. The different charge states were clearly separated, which along with the correction for artifacts connected with ion escape and multiple charge exchange made the open shell highly charged ion measurements of this type possible for the first time. From the measured spectra resonant strengths were obtained. The results were 4.27(39)x10(-19) cm(2) eV, 2.91(26)x10(-19) cm(2) eV, 2.39(22)x10(-19) cm(2) eV, 1.49(14)x10(-19) cm(2) eV and 7.64(76)x10(-20) cm(2) eV for the iodine ions from He-like to C-like, respectively.

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Background - Iris cysts in children are uncommon and there is relatively little information on their classification, incidence, and management. Methods - The records of all children under age 20 years who were diagnosed with iris cyst were reviewed and the types and incidence of iris cysts of childhood determined. Based on these observations recommendations were made regarding management of iris cysts in children. Results - Of 57 iris cysts in children, 53 were primary and four were secondary. There were 44 primary cysts of the iris pigment epithelium, 34 of which were of the peripheral or iridociliary type, accounting for 59% of all childhood iris cysts. It was most commonly diagnosed in the teenage years, more common in girls (68%), was not recognised in infancy, remained stationary or regressed, and required no treatment. The five mid-zonal pigment epithelial cysts were diagnosed at a mean age of 14 years, were more common in boys (83%), remained stationary, and required no treatment. The pupillary type of pigment epithelial cyst was generally recognised in infancy and, despite involvement of the pupillary aperture, also required no treatment. There were nine cases of primary iris stromal cysts, accounting for 16% of all childhood iris cysts. This cyst was usually diagnosed in infancy, was generally progressive, and required treatment in eight of the nine cases, usually by aspiration and cryotherapy or surgical resection. Among the secondary iris cysts, two were post-traumatic epithelial ingrowth cysts and two were tumour induced cysts, one arising from an intraocular lacrimal gland choristoma and one adjacent to a peripheral iris naevus. Conclusions - Most iris cysts of childhood are primary pigment epithelial cysts and require no treatment. However, the iris stromal cyst, usually recognised in infancy, is generally an aggressive lesion that requires treatment by aspiration or surgical excision.

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This is a mounted photo of the office building for J.N. Stricklin, Jr. in Cheraw, S.C. The building was designed by V.H. Kendall, Jr., contractor was H. J. Rushing, and the building was completed October 1953.

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Family portrait taken at Charles C. Chapman's birthday celebration, Fullerton, California,July 2, 1932. The group poses outside his residence on the lawn. Top row [left to right]: Arthur Irvin, Charles Wickett, Irvin Chapman, Sam Collins, Paul Williams, Grant Chapman,, Sidney Chapman, Clay McCarn, Earl Chapman's son David McDougal, Earl Chapman's son William McDougal, Earl Chapman, Harry Chapman, William Wickett Sr. Second row [left to right]: Mr. VanMeter, Mrs. Sinclair, C. C. Sinclair, John Franklin, Way Bagley, Marjorie Collins, Emma Williams, Ruth Chapman, Vesta Chapman, Inez Bagley, Grace Chapman, Bertha Chapman, Clough Chapman, Frank and Bertha Chapman's daughter Agnes McDougal [Streech], Georgiana Chapman, Thela Clough, Mrs. Earl [Ann] Chapman, Bessie Reynolds, Fred Chapman, E. B. [Bert] Reynolds. Seated [left to right]: Mrs. VanMeter, Hattie Clark, Louie Messlar, Charlie Thamer, Louella Thamer, Dolla Harris, Stanley Chapman Sr. holding Mary Anne, Ethel Wickett, Charles C. Chapman, Clara Chapman, Colum C. Chapman, Aunt Annie Colum, Deryth Chapman, Anna Marie Chapman, Floy Chapman, Edith Chapman. Front row [left to right]: Sam E. Collins, Bill Wickett Jr., Joyce Chapman, Marilyn Chapman, Elizabeth Chapman, Mary McCarn, Nina Chapman Lescher, Jodeane Collins, Bob Gibb, Jean Chapman. In front is a floral arrangement with drawing of a Western Union telegram "To Chas. C. Chapman, July 2, 1932, N. Fullerton, Cal., 'Wishing you a happy birthday, Nina."

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Studio portrait of Frank M. Chapman, Jr. son of Frank M. and Wilhelmina Chapman, Chicago, Illinois, ca. 1891.

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Studio portrait of Lois Chapman, daughter of Frank M. Chapman, Jr., San Bernardino, California, ca. 1915.

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Left to right: Grant Chapman, Clarke Chapman, and Frank Chapman Jr., sons of Frank Marion and Wilhelmina Zillen Chapman, on a porch at Palmetto Grove, Covina, California, ca. 1915.

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Frank Chapman Jr. [?] in a touring car, beside the Palmetto Grove house, Covina, California, August, 1909.

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Portrait of George Arthur Chapman, Jr. taken in the studio of Edwin Williams [Pasadena, Califorina?], 1932.

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The letter describes a conversation Eleanore Celeste had with her mother as she studied the Prussian-Danish War of 1864. Her mother was in Denmark at the time and elaborated on her studies. Eleanore Celeste's grandfather "held a high position in the Danish court". The family had kept an album of photographs that included pictures of Frederick VII, Christian IX etc. The pictures had been given to him by the Royal family. The next part of the letter talks about Arthur possibly returning to the United States at the end of the year. She also mentions that Arthur had sent a letter to his mother about either returning to the United States or possibly getting assigned to troops and she became upset. Eleanore Celeste writes that she tried to console Arthur's mother, but she "began picturing you at the front, in the midst of the danger". This letter is labelled 38th.