990 resultados para Rathbun, Benjamin, d. 1887


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This study assesses the Vitamin D status of 126 healthy free-living adults aged 18–87 years, in southeast Queensland, Australia (27°S) at the end of the 2006 winter. Participants provided blood samples for analysis of 25(OH)D (the measure of an individual’s Vitamin D status), PTH, Calcium, Phosphate, and Albumin, completed a questionnaire on sun-protective/sun-exposure behaviours, and were assessed for phenotypic characteristics such as skin/hair/eye colour and BMI. We found that 10.2% of the participants had serum 25(OH)D levels below 25 nmol/l (considered deficient) and a further 32.3% had levels between 25 nmol/l and 50 nmol/l (considered insufficient). Our results show that low levels of 25(OH)D can occur in a substantial proportion of the population at the end of winter, even in a sunny climate. 25(OH)D levels were higher amongst those who spent more time in the sun and lower among obese participants (BMI > 30) than those who were not obese (BMI < 30). 25(OH)D levels were also lower in participants who had black hair, dark/olive skin, or brown eyes, when compared with participants who had brown or fair hair, fair skin, or blue/green eyes. No associations were found between 25(OH)D status and age, gender, smoking status, or the use of sunscreen.

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Contains printed copies of the 1860 constitution and by-laws, copies of proceedings and annual reports, 1859-1877, of the Board of Delegates; report on Jews in Roumania, an 1874 annual report of the Hebrew Benevolent and Orphan Asylum Society, manuscript minute books and minutes of meetings, 1859-1876, resolutions, executive, financial, ritual slaughtering and other special committee reports, newspaper clippings and correspondence with synagogues and organizations in the U.S. who constitute the membership of the Board of Delegates, with the Union of American Hebrew Congregations with whom they later merged, the Union's Board of Delegates of Civil and Religious Rights, and with individuals and organizations in foreign countries including the Alliance Israelite Universelle, the Anglo-Jewish Association, the Board of Deputies of British Jews, the Committee for the Roumanian Jews (Berlin), the Koenigsberg Committee, and the London Roumanian Committee.

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The collection consists of 25 letters written by Benjamin between 1838 and 1881 on a variety of subjects, four Confederate notes and two bonds bearing his picture, miscellaneous items about Benjamin (1893-1942), nine issues of the Congressional globe with speeches by Benjamin, as well as separate copies of his printed speeches, and a photostatic copy of the "Diary of Events" (400 pp.) kept by Benjamin, the original of which is in the Library of Congress (1862-1864).

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As Voyages... são estudos completos, abrangendo todos os aspectos das regiões percorridas; servem de subsídio ao estudo das condições de vida no Brasil no século passado. "Fonte primordial de informações sobre os prédios coloniais do Rio de Janeiro, Minas Gerais, São Paulo, Santa Catarina e Goiás. Poucas obras no gênero atingem o valor de Saint-Hilarire. São clássicas e indispensáveis para o estudo do sul do Brasil, antes da Independncia" segundo Borba de Moraes

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介绍了回旋加速器高频单DD路Q值的计算与测量方法。重点对Q值的理论计算进行推导,并对计算原理进行说明。然后对计算结果和测量结果进行比较。得出的计算和测量结果基本吻合。误差产生的主要原因是计算过程中的近似和短路片接触电阻的取值,其中短路片接触电阻是一个重要因素,在设计腔体时应引起足够的重视。

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褐虾总科包括褐虾科和镰虾科,是重要的底栖生物类群,而且很多褐虾种为常见的经济种,其中中国北方海域最常见的为日本褐虾Crangon hakodatei Rathbun, 1902,另外黄海褐虾Crangon uritai Kim & Hayashi, 1999在黄渤海也较为常见。在东海和南海,污泥疣褐虾Pontocaris pennata (Bate, 1888)和拉氏爱琴虾Aegaeon lacazei (Gourret, 1887)在底栖生物拖网时常可采到,有很大的经济价值。我国对褐虾总科的研究很少,亟需对我国海域的褐虾进行全面的系统分类学和地理分布研究。 本论文所依据的标本主要为中国科学院海洋研究所海洋生物标本馆馆藏的约1600号褐虾类标本,标本主要采自渤海、黄海、东海、南海四大海域,也有部分标本采自日本海、南极和北极等海域,并得到国外同行专家惠赠的褐虾类标本约100号,同时也检查了其它单位保藏的少量标本。 本论文主要采用传统的形态学方法进行分类学研究,共鉴定出褐虾科14属25种,其中1个新种,6个新记录种,镰虾科1属7种,其中2个新种,3个新记录种。参照历史文献与现在研究结果,中国海域的褐虾类至少有2科11属44种。 本文通过对约1700号标本的详细检查,总结了各个属和种的分类学特征和地理分布特点,对各属的分种均附有详细系统的检索表,对鉴定的32种褐虾均附有详细的背面整体图和侧面整体图以及附肢等的局部形态图,并对各种进行了中文名称的考订。 本研究是我国首次关于褐虾总科的系统分类学和动物地理学研究,研究结果将改变我国在褐虾总科研究报道方面的薄弱现状,并为此动物类群的多样性等研究提供重要的基础资料。研究结果澄清了分类学上存在争议的疑难种,发现了3个新种,报道了9个新记录种,阐明了我国褐虾总科的区系特点。