Archaeology on Egypt's edge: archaeological research in the Dakhleh Oasis, 1819-1977

This article provides the first substantial survey of early archaeological research in Egypt’s Dakhleh Oasis. In addition to providing a much-needed survey of research, this study embeds Dakhleh’s regional research history within a broader archaeological research framework. Moreover, it explores the impact of contemporaneous historical events in Egypt and Europe upon the development of archaeology in Dakhleh. This contextualised approach allows us to trace influences upon past research trends and their impacts upon current research and approaches, as well as suggest directions for future research.

Adrien-Marie Legendre (1752-1833) e suas obras em Teoria dos Números

The present thesis is an analysis of Adrien-Marie Legendre s works on Number Theory, with a certain emphasis on his 1830 edition of Theory of Numbers. The role played by these works in their historical context and their influence on the development of Number Theory was investigated. A biographic study of Legendre (1752-1833) was undertaken, in which both his personal relations and his scientific productions were related to certain historical elements of the development of both his homeland, France, and the sciences in general, during the 18th and 19th centuries This study revealed notable characteristics of his personality, as well as his attitudes toward his mathematical contemporaries, especially with regard to his seemingly incessant quarrels with Gauss about the priority of various of their scientific discoveries. This is followed by a systematic study of Lagrange s work on Number Theory, including a comparative reading of certain topics, especially that of his renowned law of quadratic reciprocity, with texts of some of his contemporaries. In this way, the dynamics of the evolution of his thought in relation to his semantics, the organization of his demonstrations and his number theoretical discoveries was delimited. Finally, the impact of Legendre s work on Number Theory on the French mathematical community of the time was investigated. This investigation revealed that he not only made substantial contributions to this branch of Mathematics, but also inspired other mathematicians to advance this science even further. This indeed is a fitting legacy for his Theory of Numbers, the first modern text on Higher Arithmetic, on which he labored half his life, producing various editions. Nevertheless, Legendre also received many posthumous honors, including having his name perpetuated on the Trocadéro face of the Eiffel Tower, which contains a list of 72 eminent scientists, and having a street and an alley in Paris named after him

Fecundity, body size and population dynamics of Chrysomya albiceps (Wiedemann, 1819) (Diptera: Calliphoridae)

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Brown-throated three-toed sloth (Bradypus variegatus Shinz, 1825) as a new host for Leiuris leptocephalus (Rud., 1819) Leuckard, 1850

Vinte e três espécimes de Leiuris leptocephalus (Rud., 1819) Leuckard 1850 (Spirocercidae) foram recuperados do intestino delgado de uma fêmea de preguiça comum, Bradypus variegatus Shinz 1825 (Bradipodidae), em Ubatuba, estado de São Paulo. Os dados demonstram maior variabilidade morfométrica em relação aos dados da literatura, o que contribui para a caracterização morfológica desse nematódeo. Essa comunicação corresponde ao primeiro relato de B. variegatus como hospedeiro de L. leptocephalus.

Preferência de Apanteles galleriae Wilkinson (Hymenoptera: Braconidae) por Galleria mellonella (L.) ou Achroia grisella (Fabricius) (Lepidoptera: Pyralidae)

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

The role of riverine forests for food supply for the omnivorous fish Brycon opalinus Cuvier, 1819 (Characidae) in the Serra do Mar, Southeast Brazil

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Reproduction of Pirapitinga do Sul (Brycon opalinus Cuvier, 1819) in the Parque Estadual da Serra do Mar-Núcleo Santa Virgínia, São Paulo, Brazil

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Gonadossomatic relation and reproductive strategy of Brycon opalinus (Cuvier, 1819) in the Serra do Mar State Park - Núcleo Santa Virgínia, Atlantic Forest, Brazil

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Preliminary qualitative analysis on mtDNA in Astyanax fasciatus populations Cuvier, 1819 (Teleostei; Characidae) indicate population distinctiveness

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Fecundity in Portunus spinimanus Latreille, 1819 (Crustacea, Brachyura, Portunidae) from Ubatuba, São Paulo, Brazil.

The object of this work was to study the conditions of embryo development and egg production in Portunus spinimanus Latreille, 1819 at Ubatuba region of Brazil. The number of eggs laid by 21 females in a range of size was determined. Eggs at 3 differ ent stages of embryonic development were measured P. spinimanus fecundity varied between 188,065 and 682,992, with an average of 429,676 +/- 157,203, for animals with a carapace width ranging from 56.2 to 86.6 mm. Between the initial and final stages of development there was an increase of 55.1% in egg diameter. The relatively high fecundity of P. spinimanus may be a strategy of the species faced with a high mortality rate in the larval phase; however this hypothesis should be tested.