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Da Natureza da Exclamação Enquanto Conceito Teórico: Abrangências e Convívios N...

Iniciámos o nosso trabalho com um objectivo claramente delineado: pretendíamos descobrir onde é que a "exclamação", enquanto conceito linguístico, tem o seu início e onde tem o seu fim. O mesmo será dizer que a nossa tarefa correspondia a descobrir quais e quantos são os conceitos linguísticos que rodeiam o nosso objecto de estudo, conformando-lhe dessa forma fronteiras nocionais. Percorrendo diferentes áreas q...

The life history of Pygidiopsis macrostomum Travassos, 1928 (Digenea: Heterophy...

The life history of the trematode Pygidiopsis macrostomum Travassos, 1928 is described for the first time. Rediae and cercariae were obtained from naturally infected snails Heleobia australis (d´Orbigny), a new first intermediate host. Metacercariae were found encysted in the mesenteries of three naturally infected guppies, Phalloptychus januarius (Hensel), Jenynsia multidentata (Jenyns) (new host records) and ...

Binary Mutual Diffusion Coefficients of Aqueous Solutions of Sucrose, Lactose, ...

Binary mutual diffusion coefficients measured by the Taylor dispersion method in two different laboratories (University of Naples, Federico II, Italy, and University of Coimbra, Portugal) are reported for aqueous solutions of lactose, sucrose, glucose, and fructose at various concentrations (0.001 to 0.1) mol·dm-3 and temperatures (298.15 to 328.15) K. The hydrodynamic radius and activation energy for the diffu...

Reacções emocionais da mulher que vai ser submetida a mastectomia e a sua relaç...

Diffusion Coefficients of Copper Chloride in Aqueous Solutions at 298.15 K and ...

Mutual diffusion coefficients (interdiffusion coefficients) and molar conductivities have been measured for copper(II) chloride in water at 298.15 K and 310.15 K at concentrations between 0.005 mol·dm-3 and 0.05 mol·dm-3. The diffusion coefficients were measured using a conductometric cell. The experimental data are discussed on the basis of the Onsager−Fuoss model. The Nernst diffusion coefficients derived fro...