Firms Growth Dynamics, Competition and Power Law Scaling

We study the growth dynamics of the size of manufacturing firms considering competition and normal distribution of competency. We start with the fact that all components of the system struggle with each other for growth as happened in real competitive bussiness world. The detailed quantitative agreement of the theory with empirical results of firms growth based on a large economic database spanning over 20 years is good .Further we find that this basic law of competition leads approximately a power law scaling over a wide range of parameters. The empirical datas are in accordance with present theory rather than a simple power law.Comment: 10 pages, 8 figure

Sistemas agroflorestais no semi-árido brasileiro: trabalhando para a redução do aguecimento global.

bitstream/item/52352/1/Midia-Sistemas-agroflorestais.pd

Árvores: trabalhando em prol do planeta terra.

bitstream/item/52347/1/Midia-arvores.pd

A importância das matas ciliares nas propriedades rurais.

Mata ciliar; Meio ambiente.bitstream/item/52657/1/Midia-Importancia-das-matas.pd

Posição de lábios e língua no repouso em recém-nascidos com e sem anquiloglossia

Purpose: Verify the position of lips and tongue at rest in newborns with and without ankyloglossia. Methods: Cross-sectional study, carried out with 130 newborns in University Hospital. Data collection was performed by the researcher and speech-language pathologists from the Hospital. Information on gestational age, sex, weight, height and days of life was collected. The position of the lips and tongue at rest was evaluated through visual inspection with the newborns asleep. After the newborns were awakened, Neonatal Screening of the validated Protocol for the evaluation of the lingual frenulum for infants was performed to detect the alteration of the lingual frenulum. The data obtained were described and submitted to statistical analysis using the Chi-Square test to verify the association between the position of the lips with the tongue and to compare the position of the lips and tongue with and without ankyloglossia. The Mann-Whitney test was used to verify the behavior of the variables the differed between newborns with and without ankyloglossia. The significance level of 5% was adopted. Results: When comparing the data, a significant difference was found between: weight and height with and without ankyloglossia; position of lips and tongue. An association between the position of the tongue and lips with and without ankyloglossia was also found. Conclusion: Newborns without alteration of the lingual frenulum have a tendency to remain with their lips closed and their tongue elevated during rest and newborns with ankyloglossia have a tendency to keep their lips parted and their tongue low during rest.info:eu-repo/semantics/publishedVersio