XXII Annual Scientific Meeting, Tucuman Biology Society ...

206 ABSTRACTS
161.
REINTERPRETATION OF A MIDDLE EOCENE
NOTOUNGULATE JAW FROM THE LUMBRERA
FORMATION (SANTA BARBARA SUBGRUP, SALTA
GROUP) FROM NW ARGENTINA
Deraco MV, Powell JE.
Facultad de Ciencias Naturales e I.M.L. Universidad Nacional de
Tucumán. Miguel Lillo 205. (4000), S. M de Tucumán, Argentina.
E-mail: virginia_deraco@yahoo.com.ar
The aim of this contribution is to reanalize a complete jaw with all
its teeth, previously assigned to the Family Notohippidae (Mammalia,
Notoungulata), which is referred here as a Leontiniid. It was
found in the upper third of the Lumbrera Formation (over the “Faja
Verde II”) at El Simbolar, Guachipas Dept., Southern Salta Province.
Its dental formula is 3i; 1c; 4pm; 3m. Incisives roots are compressed.
The i3 is the biggest, a diagnostic feature of Leontiniids.
Incisives and canine are procumbent. Premolars and molars are
brachyo-dont. Premolars increase in size gradually from the pm2pm4.
Molars lack posterior fosetid. The symphysis is short and
reaches the mesial portion ot the p1. New discoveries in the same
site and stratigraphic level have cleared up this misinterpretation.
The size of the i3, the compression of the incisives and the extent
of wearing of lophids of the molars, allow to consider this material
as a new basal representative of the Family Leontinii-dae. It differs
from other leontiniids of El Simbolar in its size and the morphology
of the symphysis.
162.
DATES AND DENSITY OF SOWS AND SPACING AMONG
LINE OF RICE IN UNIRRIGATED LAND
Villegas JA, Perera JH, Agüero S.
Facultad de Agronomía y Zootecnia, Universidad Nacional de
Tucumán. Av. Roca 1900. 4000 San Miguel de Tucumán. E-mail:
jav@faz.unt.edu.ar
The present paper has the objective of to determine the influence
of the date, density of sows and spacing among lines in aspects
fenológicos and of yield of the rice cultivated without watering.
The trial was carried out during the campaign 2.002-2.003, in the
Experimental Field of the Facultad de Agronomía y Zootecnia,
Universidad Nacional de Tucumán. Annual average: Rain: 1.188
mm, EP(Thornthwaite): 1.000 mm, Excess: 270 mm in the period
December – May., Deficiency: 7 mm in September and October. It
has proven three date of sows (October, November and December),
two densities (6 and 3 grams seed/m) and two distance among
lines (0,5 and 0,3 meters). Results: the date of sows it influences in
the final height of the plants, when sows in the 2 d date they reaches
superior heights to the remaining ones, and that there are not yield
differences among the densities of sows proven, although it observes
significant interaction between dates and densities. Conclusion:
the best combination corresponds to the sows in second date,
with the biggest density and the smallest spacing among lines.
BIOCELL 30(1), 2006
163.
STUDENTS EVALUATION OF THE DENTISTRY FACULTY
OF THE NATIONAL UNIVERSITY OF TUCUMÁN
Wuscovi LF 1 , Aragón HN, Colomo de Cutín CA 1 .
1 Cát. Radiología, Fac Odontología, UNT. Av. B. Aráoz 800.
Tucumán. E-mail: luis.wuscovi@odontologia.unt.edu.ar
Educational institutions at world level, carry out controls of quality,
through certain “factors”. They include information from different
sources that are unified by countries with similar politics
and economy (OECD). The aim of this study was to detect strengths
and/or weaknesses of the educational quality of the Dental Faculty
of the UNT, through the opinion of students. Systematized anonymous
surveys applied to students (n=383) of first to fifth year, with
15 items, 12 of them of multiple option, and 3 to complete. The
analyzed aspects were: 1) types and evaluation frequency 2)
pedagogic strategies, teaching-learning technique that students took
advantage of 3) time dedicated to student’s attention 4) weekly time
dedicated to study 5) suggestions to improve practice 6) affective
relationship 7) students consults attention. Results included: 1)
Written applied evaluations were low 2) the strategy students took
advantage of was theory and practice (64%) 3) 62% considered
enough time dedicated to students, 4) 31% of the students dedicate
less than 1 h to study 5) students request more time of practice, 6)
student-teachers relationship was very good and good 7) 53% said
teachers “always” attend consults and 37% said “sometimes”. Conclusions:
much problems of pedagogic nature could be detected as
those related with students well-being. This should be applied on
University politics to improve institutional quality.
164.
DETECTION OF THE HIV VIRUS IN TOTAL SALIVA OF
HIV/AIDS PATIENTS
Salúm MK 1 , Tonello U 2 , López ME 1 , Diaz Ricci JC 2 .
1 Cát. Quím. Biol., Fac. Odontol. 2 Inst. Quím. Biol., Fac. Bioq, Quím.
y Farm., UNT. Av. B. Aráoz 800. (4000) S. M. Tucumán. E-mail:
karina.salum@odontologia.unt.edu.ar
Certain evidences suggest that orofaringeous tissues can reserve
the HIV and sustain viral replication. Total saliva (TS) is a complex
mixture of gland secretions, where recent studies detected the
virus by ELISA and Western Blot in HIV patients with gingivoperiodontal
affection. The aim of this work was to associate viral
RNA presence in TS of individuals HIV/AIDS, using the PCR technique,
with the immunologic state. 15 HIV+ patients, both sexes,
33-45 yrs old were selected. Non stimulated TS was collected in
10 min of the sublingual and vestibule regions, centrifuged at 12000
rpm 60 min at 4ºC and conserved at –70ºC. Patients were divided
according to their CD4 values: 500 cel/μl, 500-200 cel/μl and