Efeitos antrópicos sobre concentrações de metais alcalinos na região da microbacia do Arroio Araçá, Canoas - Rio Grande do Sul

This work presents alterations in the concentrations of alkaline metals sodium, lithium and potassium, in abiotic compartments, at Araçá stream micro-basin, located in Canoas, RS. Its spring is located in a low populational density region and crosses an elevated environmental impacted urban area. Its final course crosses an agricultural area. Samples of atmospheric particulates, macrophites, water and sediments were analyzed. High concentrations of alkaline metals, related with draining of rice fields or with the ground type, as well as correlations among its concentrations with regional activities were verified. Tripogandra diurética has shown bioaccumulation compatible with their concentrations on waters.

Ara latina

Painovuosi nimekkeestä.

Distribuição de biomassa e nutrientes na aréa de Mimosa caesalpiniaefolia Benth

O trabalho foi realizado na Estação Experimental de Itambé, PE, para avaliar a distribuição da biomassa e nutrientes em povoamentos de Mimosa caesalpiniaefolia Benth. Foram estudados dois povoamentos, em solo e topografia similares com oito e 11 anos de idade, nos espaçamentos de 3,0 x 3,0 m e 4,5 x 4,5 m, respectivamente. A biomassa foi determinada para cada componente aéreo. As amostras de folhas, galhos, cascas e fuste foram coletadas e analisadas quimicamente. A biomassa total encontrada foi de 66,22 e 80,78 t/ha, nos povoamentos I e II, respectivamente. O material lenhoso (galhos e lenho) representou 96,52 e 97,98% da biomassa total, nos povoamentos I e II. A distribuição de biomassa nos povoamentos I e II foi, respectivamente; de galhos (44,99 e 53,40%), fuste (51,53 e 44,58%), casca (2,39 e 1,40%) e folhas (1,10 e 0,62%). A ordem de concentração de nutrientes nos dois povoamentos, em todos os componentes da parte aérea, de modo geral, obedeceu à seguinte ordem decrescente: nitrogênio > cálcio > potássio > magnésio > enxofre > fósforo.

Characterization and effect of clarified araçá (Psidium guineenses Sw.) juice on postprandial glycemia in healthy subjects

Brazilian native fruits are excellent sources of bioactive compounds of phenolic nature. Some of these compounds are able to inhibit carbohydrate- metabolizing enzymes (in vitro), α-amylase and α-glucosidase, delaying carbohydrate digestion. This study aimed to evaluate the effect of clarified araçá (Psidium guineenses Sw.) juice on postprandial glycemia in humans after consumption of 25 g of available carbohydrates (approximately 50 g of white bread) and characterize the phenolic compounds and in vitro antioxidant capacity of araçá juice and pulp. The results showed that the clarified juice had a positive effect on postprandial glycemia reducing the total amount of glucose absorbed, lengthening the time to reach maximum blood glucose concentration, reducing glucose incremental velocity, and decreasing glucose incremental percentage. Both frozen pulp and clarified juice had high amounts of phenolic compounds, antioxidant capacity, and proanthocyanidins, among which oligomers (monomers to tetramers), pentamers, hexamers, heptamers, octamers, nonamers, decamers, and polymers were detected, and they are probably associated with in vivo effects.

Application of enzymatic preparations to produce araçá pulp and juice

In the present study, the effect of pectinases on the production of pulp and juice of araçá and the presence of bioactive compounds were evaluated. An enzyme extract (EE) produced by Aspergillus niger LB-02-SF in solid state fermentation and the commercial enzyme Ultrazym®AFP-L were used in this study. After enzyme treatment with the EE preparation, the extraction yield increased by 23.1% and viscosity decreased by 42.8%, during pulp maceration. During juice processing, there was an increase of 70.6% in clarification and a decrease of 72.87% in turbidity. Higher values of these parameters, 47.7, 69.0, 80.7, and 79.7%, respectively, were obtained using the Ultrazym®AFP-L, which also led to a significant increase in the polyphenol content, both in the pulp (24%) and in the juice (28%), with a less pronounced effect when the EE was applied (10 and 21%, respectively). The anthocyanins content in the araçá pulp increased after treatment with the commercial preparation (23%), and there was no significant increase with the use of EE. The use of Ultrazym®AFP-L increased the β-carotene content by 29.4% in the fruit pulp, while the treatment with EE did not result in significant changes compared with those of the juice and pulp controls.

[Archives de la Parole]. , Azat ara ; Zov gišer : pesnâ / Kokor Talânc, chant

[Traditions. Asie. Russie. Arménie]

La asistencia, un factor importante para lograr la productividad por Teresa Ara Ground Romo

Tesis (Maestría en Ciencias de la Administración con Especialidad en Producción y Calidad) - U.A.N.L, 2001

Ara ve el TAV!

Oportunitats i riscos de l’arribada del tren d’alta velocitat a Girona

Ja tenim projecte lingüístic : i ara què?. 'Ya tenemos proyecto lingüístico : ¿y ahora qué?'.

Se hace referencia a los diversos tipos de proyecto lingüístico y a los diferentes procesos que se pueden dar para su elaboración. Se aconseja la creación de la Comisión de Normalización, para la traducción, la corrección y el asesoramiento lingüístico. Otra de las funciones de esta comisión seria la evaluación y la dinamización para garantizar el logro de los objetivos, además de encargarse de dar criterios y coordinar el tratamiento de las lenguas del PCC y en el día a día la atención de los alumnos de incorporación tardía.

Ara que parlam de valors, parlem de rondalles. 'Ahora que hablamos de valores, hablemos de rondallas'.

Resumen tomado de la revista

Plan exportador Macao Xocolatl

Plan exportador para la micro empresa colombiana Macao Xocolatl, donde se evalúan las directrices necesarias y se plantean estrategias para incursionar sus productos en los mercados de Estados Unidos, Panamá y Chile.

I ara què? : pautes per afavorir el desenvolupament del nen de 0-3 anys. Guia per a mares i pares' ¿Y ahora qué? : pautas para favorecer el desarrollo del niño de 0-3 años. Guía para madres y padres'.

Documento sin numeración de página. Material desarrollado por el equipo de atención temprana de Ibiza y Formentera

Migracions d'abans i d'ara : experiència de l'IES Vila de Gràcia, Barcelona. 'Migraciones de antes y de ahora : experiencia del IES Vila de Gràcia, Barcelona'.

Resumen de la autora en catalán

Llegendes d'ara : les llegendes urbanes com a recurs d'expressió a l'ESO. ' Leyendas de ahora : las leyendas urbanas como recurso de expresión en la ESO'.

Resumen del autor en catalán

Ara fa cent anys. 'Ahora hace cien años'.

Resumen de los autores en catalán