Maize distillers dried grains with solubles alter dietary digestibility and improve intestine health of pacu, juveniles.

Two trials were conducted to evaluate the effects of soyabean meal replacement by maize distillers dried grains with solubles (DDGS) in diets for pacu juveniles. Five diets were formulated with 0, 100, 200, 300 and 400 g of DDGS/kg diet replacing up to total dietary soyabean meal. In trial 1, the experimental diets were fed to five groups of fish to evaluate the apparent digestibility coefficients (ADC).

Time-Periodic Stiffness Modulation in Elastic Metamaterials for Selective Wave Filtering: Theory and Experiment.

Elastic waveguides with time-modulated stiffness feature a frequency-periodic dispersion spectrum, where branches merge at multiple integers of half the modulation frequency and over a finite wave number range. In this range, frequency becomes complex, with its real part remaining constant. The vanishing group velocity associated with these flat bands leads to frequency-selective reflection at an interface between a nonmodulated medium and a time-modulated one, which converts a broadband input into a narrow-band output centered at the half modulation frequency.

Ultra-broadband two-pump optical parametric amplifier in tellurite waveguides with engineered dispersion.

The capacity of communication networks may be significantly improved by simply enhancing the optical amplifier bandwidth. This paper presents a numerical investigation of an ultra-broadband, low-ripple, two-pump-optical parametric amplifier (2P-OPA) that employs a tellurite glass buried-channel type nano-waveguide as nonlinear medium. The nano-waveguide was designed as a 25-cm-long Archimedean spiral that occupies a footprint of only ~2.

Spectrally flat and broadband double-pumped fiber optical parametric amplifiers.

We study theoretically and experimentally spectrally flat and broadband double-pumped fiber-optical parametric amplifiers (2P-FOPAs). Closed formulas are derived for the gain ripple in 2P-FOPAs as a function of the pump wavelength separation and power, and the fiber non-linearity and fourth order dispersion coefficients. The impact of longitudinal random variations of the zero dispersion wavelength (lambda(0)) on the gain flatness is investigated.

[Training of personnel for mental health teams].

The mental disorder is a biopsychosocial phenomenon. Starting from this idea, this paper suggests the active participation of every psychiatric professional with the organizated help of community groups, specially trained in mental health matters. A double social function is obtained by this: 1) programmed public training, and 2) practical performance in the assistence field of the same community.

[Evaluation of the therapeutic performance of an integral program of neuroses as applied to an outpatient clinic].

1. During 1976, it was evaluated the treatment of 45 cases of neurosis, carried out by monitors (D4) of the External Consultation of Barros Luco-Trudeau Hospital. 2.

[Policy of mental health in Latin America].

The author reviews the current epidemiological concepts in Latin America, assesses the general mental health levels and sets forth some basic proposals aiming at the allocation and use of scarce resources, incorporating as an important one the community itself. The classic models for Mental Health Programs, defined through their basic infrastructures are analyzed: a) The Institution-Pscychiatric Hospital, aimed mainly at tertiary prevention, custody, and biologic therapy, and having high costs with reduced benefits; b) The Mental Health Unit, aimed mainly at secondary prevention, providing several services, and having high costs with good benefits; and c) The Comprehensive Program, aiming mainly at primary prevention, providing several specialized services together with the use of the resources of the community itself, and having low costs with high benefits. An overview of Mental Health indicators shows the following rates of prevalence: a) neurosis, 15%; b) alcoholism, 5%; c) epilepsy, 2%; d) psychosis, 1%; e) dementia, 1%; f) mental retardation, 1%.

[Attitudes towards alcohol in adolescents of 3 social classes in the City of Cordoba].

When dealing with some of primary prevention of alcoholism, the starting point is always a preliminary descriptive study of valueattitude systems of community groups, being one of the main prevention goals to modify certain guidelines and patterns of alcohol intake. This research aims at: a) Description of attitudes towards alcohol of 116 adolescents between 12 and 16 years in Córdoba City, belonging to middle class, white collar and qualified blue collar; b) Definition of relationships between adolescents' attitudes and social class; c) Determination, according to the social class, of favorable, unfavorable or neutral attitudes towards a program of prevention and control of alcoholism. A questionnaire with 49 uncomplete phrases first conceived for Chile and adapted to our milieu was used.