983 resultados para Mechitar, 1676-1749.


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The Portuguese territorial process of the captaincy of Rio Grande was initiated in1598 with the conquest of the Potengi River bar by Mascarenhas Homem. This process lasted until 1633, when it was interrupted by the arrival of the Dutch, and resumed only in 1654. From this year on, the occupation of unknown lands of the captaincy was encouraged, supporting the advancement towards conquering the backlands, breaking the divisive boundaries with the captaincy of Siará Grande so far known: the Assú riverside. This breakthrough resulted in confrontations with the inhabitants of these lands, known as tapuias, leading to outbreak of several conflicts that composed the Barbarians War. The main stage of such events in Rio Grande, between the years 1687 and 1720, was precisely the Assú riverside, one of the spaces to be investigated by this research. Therefore, this paper aims to analyze the advance of the conquerors in Rio Grande, contributing to the territorial process, which resulted in the emergence of a new border between Rio Grande and Siará Grande: the Apodi-Mossoró river. For this purpose, it was used sources produced between the years 1659 and 1725, as the settlement letters, royal charters, correspondence between the City Council of Natal, captains of Rio Grande and the government of Pernambuco and also the general government, as well as the documents related to the militia composed mainly by Paulistas who struggled in the captaincy.

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The Raman spectra of a series of related minerals of the pinakiolite group of minerals have been collected and the spectra related to the mineral structure. These minerals are based upon an isolated BO33- ion. The site symmetry is reduced from D3h to C1. Intense Raman bands are observed for the minerals takeuchiite, pinakiolite, fredrikssonite and azoproite at 1084, 1086, 1086 and 1086 cm-1. These bands are assigned to the ν1 BO33- symmetric stretching mode. Low intensity Raman bands are observed for the minerals at 1345, 1748; 1435, 1748; 1435, 1750; 1436, 1749 cm-1. One probable assignment is to ν3 BO33- antisymmetric stretching mode. Intense Raman bands of takeuchiite, pinakiolite, fredrikssonite and azoproite at 712 cm-1 attributed to the ν2 out-of-plane bending mode. Importantly, through the comparison of the Raman spectra, the molecular structure of borate minerals with ill-defined structures can be obtained.

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War is a tragic event and its mental health consequences can be profound. Recent studies indicate substantial rates of posttraumatic stress disorder and other behavioral alterations because of war exposure. Understanding the psychological, behavioral, and neurobiological mechanism of mental health and behavioral changes related to war exposure is critical to helping those in need of care. Substantial work to encourage bench to bedside to community knowledge and communication is a core component of addressing this world health need.

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The Syrian hamster, Mesocricetus auratus, was first used in laboratory experiments some fifty years ago in the Middle East, from animals captured in the wild. 1 Since then the Syrian hamster has been domesticated and used extensively in laboratory studies of motivation, includuing reproduction, feeding, aggression and circadian behaviors. 2 In comparison to the rat, the male Syrian hamster is a solitary animal known for its territorial aggression, photoperiodic mating and hoarding behaviors. Many neural circuits controlling reproductive behaviors are now known. 3 While these motivated behaviors have been demonstrated to be regulated by endocrine status there is increasing evidence that dopamine within the nucleus accumbens conveys the rewarding tone of sexual motivation