碳纳米管-Mg_(65)Cu_(25)Gd_(10)非晶复合材料玻璃转变的动力学性质

制备了Mg65Cu25Gd10大块非晶合金及其碳纳米管(CNTs)复合材料,对两种材料进行了不同扫描速率下的差热扫描量热分析,研究了加入CNTs对材料玻璃转变和晶化动力学效应的影响。结果表明:加入CNTs后,复合材料的玻璃转变和晶化行为仍然具有动力学效应,但加入的CNTs减小了材料晶化行为对升温速率的依赖程度;同时,加入CNTs加大了材料发生玻璃转变时需要克服的能量势垒,增大了峰值温度时的晶化反应速率常数,从而降低了材料的玻璃形成能力(GFA);对CNTs降低GFA的原因也进行了探讨。

Cruise Report 65-S-1 - Shrimp

(PDF contains 3 pages.)

Cruise Report 65-S-2 - Exploratory

(PDF contains 3 pages.)

Cruise Report 65-S-4, Trawl, California Halibut

(PDF contains 1 page.)

Cruise Report 65-S-3 - Albacore

(PDF contains 3 pages.)

Cruise Report 65-S-5 - Rockfish

(PDF contains 2 pages.)

Cruise Report 65-S-6 - Shrimp

(PDF contains 3 pages.)

Cruise Report 65-S-7 - Crab

(PDF contains 4 pages.)

Diário da Constituinte [gravação de vídeo] : [programa n. 485]

Os constituintes garantiram na nova Carta a iniciativa popular nas leis. Basta que 1% do eleitorado do país, 700.000 eleitores, assine uma emenda e envie ao Congresso. Com os 559 constituintes presentes, numa sessão histórica, o Plenário aprovou ontem o Presidencialismo como sistema de governo. O texto aprovado foi um texto básico, chamado de a Emenda Lucena. Agora será necessário fazer os ajustes para que o sistema de governo esteja adequado. A duração do mandato para Presidente está em discussão. A duração de 4 ou 5 anos deverá ser definida.

Rhythms of division of some algae in situ and in laboratory culture. [Translation from: Studii Cerc.Biol.(Bot.) 21, 61-65, 1969. ]

The rhythm of division of 9 species belonging to different groups of algae were analysed in situ and in the laboratory. The research which developed in different environmental conditions attempted to establish the capacity for multiplication and assimilation of chlorophyll on the part of the algae under study with a view to placing them in a culture. The results obtained showed that the green multicellular algae (eg. Ulothrix) and the blue algae (eg. Lyngbya, Oscillatoria) are able to produce an appreciable quantity of dry matter, just as the unicellular algae. At the same time it arises that amongst the numerous factors of the environment, temperature plays one of the most important roles in the process of multiplication.

Comparative investigations on the respiratory physiology of euryhaline gammarids with special reference to salinity adaptation. [Translation from: Helgolaender Wissenschaftliche Meeresuntersuchungen 23(4) 485-534, 1972.]

Members of the family Gammaridae are very closely interrelated. There arises the question as to how far they also differ amongst themselves through physiological characteristics. Comparative respiratory and physiological experiments were made on the five euryhaline species Gammarus locusta, G. oceanicus, G. salinus, G. zaddachi and G. duebeni. The respiratory measurements carried out within the framework of this experiment were occupied with the relationships between oxygen consumption and body size depending on salinity. They also had the object of determing the variations in metabolic intensity after an abrupt change in the salt content of the external medium, and to establish the period of time for the process of adaptation. As the experiments were carried out polarographically in a testing plant with continuous flow-through, and the method which was applied permitted continuous recording over prolonged intervals, there could also be carried out comparisons between metabolism at rest and under activity, and the alterations of oxygen consumption during the process of moulting could be measured.

Radioautographic method of determination of number of bacteria in water-bodies [Translation from: Informatsionnyi Byulleten Biologiya Vnutrennikh Vod No.26, 65-67, 1975]

The radioautographic method of determination of the number of autotrophic microorganisms was initially suggested for counting methane-oxidizing bacteria. With the help of this method colonies of hydrogen-oxidizing bacteria are differentiated even more clearly from heterotrophic. Under laboratory conditions it was shown that colonies grown on membrane filters from a pure culture of thionic bacteria on a nutrient medium with radio- active carbonate, give better prints on film. This method was tested by the authors for determining the number of these bacteria in the meromictic Lake Vae de San Juan during the expedition to Cuba in the summer of 1973. The study showed that that the thionic bacteria are found throughout the pelagial. It proved that the thionic bacteria can be well considered in water-bodies by the radioautographic method.

Análisis de la percepción de la violencia de género en las mujeres mayores de 65 años: implicaciones para la intervención socioeducativa.

[es] La violencia de género puede afectar a cualquier mujer a lo largo de todo el ciclo vital. Se han estudiado aspectos específicos y diferenciales que ponen de manifiesto como las mujeres mayores de 65 años víctimas de violencia de género presentan dificultades para la percepción y ruptura con esta situación. En base a las conclusiones de dicho análisis se ha observado que el abordaje de esta problemática necesita una intervención especializada, por lo que se han elaborado pautas de intervención socioeducativa para una praxis transformadora y adaptada a su realidad.