644 resultados para Salem
Resumo:
An analysis of Y-chromosomal haplotypes in several European populations reveals an almost monomorphic pattern in the Finns, whereas Y-chromosomal diversity is significantly higher in other populations. Furthermore, analyses of nucleotide positions in the mitochondrial control region that evolve slowly show a decrease in genetic diversity in Finns. Thus, relatively few men and women have contributed the genetic lineages that today survive in the Finnish population. This is likely to have caused the so-called "Finnish disease heritage"-i.e., the occurrence of several genetic diseases in the Finnish population that are rare elsewhere. A preliminary analysis of the mitochondrial mutations that have accumulated subsequent to the bottleneck suggests that it occurred about 4000 years ago, presumably when populations using agriculture and animal husbandry arrived in Finland.
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Mediatophore is a protein of approximately 200 kDa able to translocate acetylcholine in response to calcium. It was purified from the presynaptic plasma membranes of the electric organ nerve terminals. Mediatophore is a homooligomer of a 16-kDa subunit, homologous to the proteolipid of V-ATPase. Cells of the N18TG-2 neuronal line are not able to produce quantal acetylcholine release. We show here that transfection of N18TG-2 cells with a plasmid encoding the mediatophore subunit restored calcium-dependent release. The essential feature of such a release was its quantal nature, similar to what is observed in situ in cholinergic synapses from which mediatophore was purified.
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It is becoming clear that an adequate level of long-chain highly unsaturated fatty acids in the nervous system is required for optimal function and development; however, the ability of infants to biosynthesize long-chain fatty acids is unknown. This study explores the capacity of human infants to convert 18-carbon essential fatty acids to their elongated and desaturated forms, in vivo. A newly developed gas chromatography/negative chemical ionization/mass spectrometry method employing 2H-labeled essential fatty acids allowed assessment of this in vivo conversion with very high sensitivity and selectivity. Our results demonstrate that human infants have the capacity to convert dietary essential fatty acids administered enterally as 2H-labeled ethyl esters to their longer-chain derivatives, transport them to plasma, and incorporate them into membrane lipids. The in vivo conversion of linoleic acid (18:2n6) to arachidonic acid (20:4n6) is demonstrated in human beings. All elongases/desaturases necessary for the conversion of linolenic acid (18:3n3) to docosahexaenoic acid (22:6n3) are also active in the first week after birth. Although the absolute amounts of n-3 fatty acid metabolites accumulated in plasma are greater than those of the n-6 family, estimates of the endogenous pools of 18:2n6 and 18:3n3 indicate that n-6 fatty acid conversion rates are greater than those of the n-3 family. While these data clearly demonstrate the capability of infants to biosynthesize 22:6n3, a lipid that is required for optimal neural development, the amounts produced in vivo from 18:3n3 may be inadequate to support the 22:6n3 level observed in breast-fed infants.
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Os altos índices de corrupção no Brasil levaram a criação de algumas leis com o intuito de combater este mal que corrói a democracia e que preocupa todos os países democráticos. Este trabalho busca verificar as novas ferramentas jurídicas, bem como a responder a uma questão. Há mais alguma reforma necessária? Alguns estudos apontam influência de aspectos do sistema eleitoral no índice de corrupção. Se há, que reforma nesse sentido o Brasil poderia adotar? Foram utilizados método dialético e método comparativo, para análise de doutrina e legislação estrangeiras, comparando-as com as nacionais, e método indutivo para a análise de dados. Foram feitos grandes avanços legislativos, mas há que discutir o que pode ser aprimorado para criar um ambiente menos fértil à corrupção e tornar mais eficazes os mecanismos de controle dos agentes públicos.
Resumo:
This work develops the foundations of an Islamic argument for secular, liberal democracy from within the Islamic discursive tradition. First, it challenges the presentation of contemporary Islamic political thought as a unified, continuous development of the classical canon by showing the influence of the now marginalized medieval rationalists in the development of Islamic political thought. The classical rationalist concern with divine justice forced the founders of Sunni orthodoxy to state their epistemologies and their positions on ethical ontology. The orthodox positions, and their related methods of legal-juristic reasoning, are shown to be incapable of accommodating the modern Islamic positions on political representation, slavery, and just war. This leads to the second argument of the work, that the modern Islamic discourse is better understood as a reflection of the central concern with justice and its rationalist epistemology and ethical ontology we find in the writings of classical rationalists. This argument is made by examining the works of three classical rationalists, a theologian, a philosopher, and a historian. Their political positions, shaped by their rationalism and concern with justice, challenged their orthodox contemporaries, and provide substantive critiques of the classical political accommodations, methods of politico-legal reasoning, and hence, of modern Islamist political projects. The final chapter reveals how far the mainstream of Islamic political thought has deviated from the classical discourses, since the 19th century, by adopting the language and ideals of the European Enlightenment. This shift is presented as a triumph of classical rationalism over literalism, whose epistemological foundations and ontological implications have yet to be acknowledged and appreciated.
Resumo:
Hector Orr began recording entries in this commonplace book during his first year as a student at Harvard and continued writing in the volume sporadically until 1804. The entries written while he was a student, from 1789 to 1792, include themes written on the following topics: Time, Discontent, Patriotism, Virtue, Conscience, Patience, Avarice, Compassion, Mortality, Self-knowledge, Benevolence, Morning, Anger, Profanity, Bribery, Autumn and Winter, Hermitage, Conscience and Anticipation. He also wrote detailed entries about the forensic disputations in which he and his classmates participated, explaining both the affirmative and negative positions. One of these disputations involved discussion of the Stamp Act, which was then quite recent history. Orr's entries about the disputations list the names of students involved and specify their position in the argument.
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Stephen Longfellow wrote this letter in Portland, Maine on May 29, 1799; it was sent to his friend, Daniel Appleton White, in Medford, Massachusetts. In the letter, Longfellow describes the Election Day festivities among the "plebeans" in Portland, which he apparently found both amusing and upsetting. He compares the horses pulling their sleds to Don Quixote's horse, Rocinante. He also writes about mutual friends, including John Henry Tudor and Jabez Kimball, and bemoans the behavior of the current members of Phi Beta Kappa among the Harvard College undergraduates, whom he insists have sunk the society below its former "exalted station."
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Stoughton's bond for forty pounds to the constable of Dorchester, Massachusetts, guaranteeing the appearance of Daniel Elders at court. Elders was the defendant in a suit brought by Mitchel Bacon of Woburn against Daniel Elders of Dorchester.
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The leather-bound notebook contains academic texts copied by Obadiah Ayer while he was a student at Harvard, and after his graduation in 1710. There is a general index to the included texts at the end of the volume.
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This leather-bound volume contains a manuscript copy of Charles Morton’s Compendium Physicae copied by Harvard student Obadiah Ayer in 1708. The volume has text and drawings (including one large foldout drawing), and there is an index to the chapters at the end of the volume. Mather Byles (Harvard Class of 1725) also used the book.
Resumo:
Small pamphlet-sized notebook containing handwritten transcriptions of three poems copied by James Diman, likely in the early 1730s. The notebook contains "The Catholic Remedy. to ye Tune of To all you Ladies, not at land &c.," "Father Ab--y's Will. Col. Sweeper Camb: Dec. 1731," and "The Poet's Lamentation for ye Loss of his cat, w'ch he used to call his Muse" copied from the London Magazine, November 1733. The "Catholic Remedy" begins "You Peope who desire to mend / your Desperate Estate..." and includes the note, "Made upon A--D--'s goving over to take orders. The note refers to the voyage of Addington Davenport (Harvard AB 1719) to England join the priesthood of the Church of England in 1730. "Father Ab--y's Will" begins "To my dear Wife, / My joy and Life..." and was a humorous poem published in 1731 after the death of Harvard College Sweeper Matthew Abdy, and attributed to Jonathan Seccombe (Harvard AB 1728). The "Poet's Lamentation" begins "Oppress'd with Grief, in heavy strains I mourn..." and was written by Joseph Green (Harvard AB 1726) as a parody of a psalm composed by Mather Byles (Harvard AB 1725). Pages 10-12, holding part of "Father Ab--y's Will" are missing, and pages 13-15 are no longer attached to the item.
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Two-page handwritten letter from Harvard undergraduate William Prescott to his classmate, Oliver Prescott, that chiefly describes, in florid language, the discipline received by John Rowe (Harvard AB 1783) and others from College officers for disorderly behavior.
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One-page handwritten letter from Harvard President Edward Holyoke (1689-1769) requesting that the letter's unidentified recipient locate a book on academic costume previously mentioned by "Secry Oliver," referring to the Secretary of the Province of Massachusetts Bay, Andrew Oliver (1706-1774; Harvard AB 1724). In the letter, Holyoke explained that College alumni wished to give him a gown, and he wanted to determine the appropriate design for the head of a college. The recipient of the letter is identified only as "My dear Child" from "Yo'r Affect. Father, E. Holyoke." The letter also includes the note, "Give my love to my Dau'ter."
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Sixteen-page paper notebook containing a handwritten copy of an essay titled "An Oration upon Genius" composed by AM candidate Joseph Perkins for the 1797 Harvard Commencement. The verso of the last page contains the handwritten title: "Oration on Genius first Copy. July 17th Commencement 1797." The essay discusses themes of republicanism and education and begins, "To mark the peculiar operation of liberty on mental exertion and improvement..."