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Origen y desarrollo de los primeros pobladores del Ecuador
(Universidad Nacional de Educación, 2019)
Cell kinetics, stomatal differentiation, and diurnal rhythm in Allium cepa
(1973)
Cell kinetics parameters were obtained for the three mitotic divisions leading to formation of stomata in the epidermis of the cotyledon of Allium cepa seedlings. Analysis of mitotic frequencies throughout the course of ...
Sistema pastoril y división sexual del trabajo en el Este de MendozaFarm production system and labor sex division in Eastern Mendoza
(Universidad Nacional de La Pampa. Facultad de Ciencias Humanas. Instituto de Geografía, 2020-04)
Nos proponemos caracterizar la división sexual del trabajo en la producción pastoril de una zona rural del Este de Mendoza, poniendo el foco en el trabajo de las mujeres. Para llevar a cabo esta tarea, desarrollamos un ...
Construction of the Division Algorithm in Fourth Elementary Year in a Chilean School
(UNIV GRANADA, GRUPO INVESTIGACION DIDACTICA MATEMATICA, 2019)
From a socioepistemological approach, this qualitative study explores the argumentation provided by nine-year-old students to characterize the process of construction of the division algorithm in the natural number system. ...
Structure and development of the egg of the glossiphoniid leech Theromyzon rude: Reorganization of the fertilized egg during completion of the first meiotic division
(1990)
Reorganization of the fertilized egg during completion of the first meiotic division was studied in the glossiphoniid leech Theromyzon rude. Rotation of the meiotic spindle, presumably as a result of changes in the length ...
Performance Enhancement of OFDM-Based Systems Using Improved Parametric Linear Combination Pulses
(Springer, 2015)
As the demand for better performance increases in next-generation networks,
such as 5G technologies, more efficient modulation techniques are required. In this work,
we evaluate the performance of the improved parametric ...