Parts Of Abstract

1. ANDREA CAROLINA CHONA PADILLA
GRADO:11°1 JM
INSTITUCION EDUCATIVA NACIONAL
AGUSTIN CODAZZI
CESAR

3. Background
Purpose And Focus
Methods
Result
Conclusions

5. The production of cassava starch in
Colombia comes mainly from the northern
region of the Cauca Departament in small
agricultural industries know as
“rallanderías”, in which the settling of the
slurry occurs in channels.

6. Due to the fact that the settling process
determines the capacity of the starch
industry, it is important to evaluate the
sedimentation process performed in
rectangular channels (0.3m high; o.4m wide;
165m long), which are generally used in the
region.

7. Two main components were evaluated:
determination of the change in the
concentration of the slurry entering the
settling zone and determination of the
particle size distribution in the settling zone.

8. During the settling process, the flow varied
between 0.82 to 1.44 L/S with a
predominance of laminar flow and a
hydraulic, retention time greater than 150
minutes.

9. In the first 104m of the channel, particles
greater than 10μm in size were efficiently
retained; particles between 6.7 to 8.8μm were
not retained and were discharged into local
bodies of water, generating environmental
problems.

11. In Spain young people have their first sexual
intercourse at an earlier age than in other
countries; however, little is know about the
relationship between age of sexual debut and
sexual behavior in this population.

12. Sexual practices and methods of protection
are analyzed depending on the age of sexual
debut among Spanish adolescents who are
sexually experienced (N-351). The mean age
was 15,9 years (SD=.75, range: 14-18).

13. Three groups were formed according to the
age of sexual debut reported: Early sexual
debut (Earlier than 15 years), average (15
years) and late (Later than 15 years).

14. The early sexual debut group reported
further mutual masturbation, vaginal
intercourse and oral sex with a higher
number of sexual portners than the rest.
Condom use at first intercourse, percentage
of use and Consistent-Condom use was
significantly lower in the early sexual debut
group compared to the others.

15. Sexual debut before 15 years old was
assocrated with increased risk of sexual
infections, deficit in condom use and
iincreased sexual exposure. The findings of
this study suggest that the age of sexual debut
has implications for the sexual health in
young people.