101,876 research outputs found
Letter, [Author unclear] to Paulina T. Merritt
No full textHandwritten letter to Paulina Merritt from an unknown author, October 1, 1876.
Cultivation of organisms concerned in the oxidation of thiosulfate
No full textAlthough numerous investigations deal with the isolation and description of bacteria which decompose thiosulfate and other incompletely oxidized sulfur materials, considerable confusion still exists concerning certain aspects of the nutrition of these bacteria and the significance of the sulfur materials in their development. The present report includes studies on the influence of envi-ronmental conditions upon the development of some bacteria which up to this point at least would be classified as species of the genus Thiobacillus, Beij. The cultures used in these studies have been previously described in some detail (Starkey, 1934a). They may be briefly characterized as follows. They are all Gram-negative, non-sporulating, small, rod-shaped bacteria. Th. novellus increases the acidity of mineral media containing thiosulfate and develops a uniform turbidity of the solution. This is a facultative autotrophic organism. It was described as a new species in the precedingreport (Starkey, 1934a). Culture B is closely related to the bacteria described by Traut-wein (1921; 1924) and called Th. trautweinii, Bergey. It was fortunate that two of Trautwein's three cultures were available in this laboratory, having been supplied by their discoverer over ten years ago. Since that time they have been regularly trans-ferred on nutrient agar. They show the same general character-istics originally ascribed to them. Their original identification as cultures T and K have been retained in this report. Culture B, isolated in this laboratory and T and K grow well on most o
General Alpheus Starkey Williams photograph
No full textThis image is a carte des visite photograph of General Alpheus Starkey Williams (1810-1878), who was a military leader during the Mexican-American War and the Civil War. This card photograph is among the images in the William T. Sherman Photograph Album. Williams served under General Sherman in the Atlanta Campaign and in the March to the Sea.
Alpheus Starkey Williams was born in Deep River, Connecticut. Both parents died by the time he was 17 but left him an estate that allowed him to graduate from Yale College in 1831and then to study law. He moved to Detroit, Michigan, in 1836 and was admitted to the bar in 1837. In addition to practicing law, he was a probate judge, publisher of the “Detroit Advertiser,” and a member of the board of education.
He enlisted in the local militia, the Brady Guards, rising from the rank of private in 1838 to becoming major general in the Michigan Militia within 20 years. From 1847 to July 1848, he served as a lieutenant colonel in the First Michigan Infantry during the Mexican-American War. He returned to Detroit and worked as city’s postmaster from 1849 to 1853.
In 1855 the Brady Guard became the Detroit Light Guard and Williams its captain and leader. By 1859 the unit had expanded into a battalion of two companies, and Williams had achieved the rank of major.
In spring 1861 he was commissioned a brigadier general of Michigan Volunteers and of United States Volunteers. He commanded troops that fought in the Shenandoah Valley against Gen. Thomas J. “Stonewall” Jackson’s men; in the Battle of Antietam, the Battle of Resaca, and on Brenner’s Hill during the Battle of Gettysburg. During the General William T. Sherman’s Atlanta Campaign, Williams commanded the First Division, XX Corps. In November 1864 Williams became commander of XX Corps, the first troops to enter Savannah, Georgia. In January 1865 he was brevetted the rank of major general.
His fatherly concern for his men earned him the nickname “Pap.”
Williams left the military in January 1866 and launched an unsuccessful gubernatorial campaign. In fall 1866, President Andrew Johnson appointed him Minister Resident to El Salvador, a post he held until 1869. Williams ran successfully for Congress in 1874 and 1876, and as a U.S. Representative worked hard on behalf of military veterans.
He died December 21, 1878, and was buried in Detroit’s Elmwood Cemetery
Handwritten biographical information on Paulina T. McClung Merritt
No full textA handwritten biography of Paulina T. McClung Merritt by an unknown author, 1892.
Heterogeneous and tissue-specific regulation of effector T cell responses by IFN-gamma during Plasmodium berghei ANKA infection.
No full textIFN-γ and T cells are both required for the development of experimental cerebral malaria during Plasmodium berghei ANKA infection. Surprisingly, however, the role of IFN-γ in shaping the effector CD4(+) and CD8(+) T cell response during this infection has not been examined in detail. To address this, we have compared the effector T cell responses in wild-type and IFN-γ(-/-) mice during P. berghei ANKA infection. The expansion of splenic CD4(+) and CD8(+) T cells during P. berghei ANKA infection was unaffected by the absence of IFN-γ, but the contraction phase of the T cell response was significantly attenuated. Splenic T cell activation and effector function were essentially normal in IFN-γ(-/-) mice; however, the migration to, and accumulation of, effector CD4(+) and CD8(+) T cells in the lung, liver, and brain was altered in IFN-γ(-/-) mice. Interestingly, activation and accumulation of T cells in various nonlymphoid organs was differently affected by lack of IFN-γ, suggesting that IFN-γ influences T cell effector function to varying levels in different anatomical locations. Importantly, control of splenic T cell numbers during P. berghei ANKA infection depended on active IFN-γ-dependent environmental signals--leading to T cell apoptosis--rather than upon intrinsic alterations in T cell programming. To our knowledge, this is the first study to fully investigate the role of IFN-γ in modulating T cell function during P. berghei ANKA infection and reveals that IFN-γ is required for efficient contraction of the pool of activated T cells
Dispelling the Myths Behind First-author Citation Counts
No full textWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
Pelevin’s Trinity in the novel “t”: author – protagonist – reader
No full textThe article attempts to interpret Pelevin's artistic strategy in the novel "T" by exploring its subject organization and addressing the key problems of the author, the protagonist, and the reader as they are seen by the researcher. The article analyzes the peculiarities of constructing the narrative reality in the novel "T", and goes on to discuss Pelevin's philosophic models of the development of the humankind, and the emergence of his new anthropology
Measuring industry-science links through inventor-author relations: A profiling method
No full textIn this pilot study we examine the performance of text-based profiling in recovering a set of validated inventor-author links. In a first step we match patents and publications solely based on their similarity in content. Next, we compare inventor and author names on the highest ranked matches for the occurrence of name matches. Finally, we compare these candidate matches with the names listed in a validated set of inventor-author names. Our text-based profile methodology performs significantly better than a random matching of patents and publications, suggesting that text-based profiling is a valuable complementary tool to the name searches used in previous studies.innovation; industry-science links; text-based profiling;
Um modelo para a capacitação de pessoas em serviços com enfoque para o pessoal de apoio da linha de frente
No full textDissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Engenharia de Produção.O modelo de capacitação de pessoas em serviços apresentado nesta pesquisa tem o objetivo principal de propor, desenvolver, implantar e avaliar um modelo para capacitação de pessoas em serviços com foco no pessoal de apoio da linha de frente. A estrutura deste modelo indica três elementos distintos e complementares de sustentação: as dimensões da aprendizagem, os subsistemas de gestão dos recursos humanos e o papel gerencial
Wave turbulence of a rotating array of quantized vortices in the T → 0 temperature limit
No full textThe dynamics of quantized vortices in the zero temperature limit is currently of great interest, particularly in the case of the Fermi superfluid He-B. Here we study wave turbulence, generated by the librating motion of a rotating cylindrical container filled with He-B, in the limit of vanishing viscous forces at temperatures . The polarization of the quantized vortices with respect to the axis of rotation is measured using non-invasive NMR techniques. We observe a decrease of the polarization when the librating motion is started, and a two-stage relaxation process when the modulation of the rotation velocity is stopped. The first relaxation process is associated with the dissipation of large-scale flow stored in inertial waves and the solid body rotation of the vortex array. From the decay of these energy reservoirs we determine the rate of energy dissipation of large-scale flow. The later second process is related to the relaxation of Kelvin waves on individual vortices. This process is monitored by the recovery of the polarization. The existence of a Kelvin wave cascade at the lowest temperatures is currently a central open question. We supply some evidence for the cascade
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