Determination of roughness coefficient in 3D digital representations of rocks.

The roughness property of rocks is significant in engineering studies due to their mechanical and hydraulic performance and the possibility of quantifying flow velocity and predicting the performance of wells and rock mass structures. However, the study of roughness in rocks is usually carried out through 2D linear measurements (through mechanical profilometer equipment), obtaining a coefficient that may not represent the entire rock surface. Thus, based on the hypothesis that it is possible to quantify the roughness coefficient in rock plugs reconstructed three-dimensionally by the computer vision technique, this research aims to an alternative method to determine the roughness coefficient in rock plugs.

First Report of Looss 1899 (Digenea: Pronocephalidae) in a Hawksbill Turtle - . Found in Brazilian Coast.

Looss 1899 (Digenea: Pronocephalidae) is a parasite exclusive to sea turtles, having been described in the green turtle () in Egypt, the USA, Panama, Costa Rica and Brazil as well as the olive ridley turtle () in Brazil. The present note describes the first occurrence of in a hawksbill turtle () found on the coast of Brazil.

The Genus Price, 1939 (Digenea: Rhytidodidae) in Brazil: New Geographic Occurrence and Report of Pathology in the Gallbladder.

The present note describes the occurrence of and (Digenea: Rhytidodidae) in the gallbladder of two juvenile green turtles ( - Testudines, Cheloniidae) found on the coast of Brazil. Both were detected in gallbladder and intestine of green turtles: (United States, Panama, Costa Rica and Brazil) and (United States, Panama and Costa Rica). This note is the first report of in Brazil and South-West Atlantic Ocean.

Chronic Cystitis Associated with Plesiochorus cymbiformis ( Rudolphi, 1819 ) Looss, 1901 (Digenea: Gorgoderidae) in a Loggerhead Turtle Caretta caretta (Linnaeus 1758) (Testudines, Cheloniidae) from Brazil: A Case Report.

This paper reports the first occurrence of Plesiochorus cymbiformis (Digenea: Gorgoderidae) in a loggerhead turtle ( Caretta caretta [Testudines, Cheloniidae]) in Brazil and describes the histological findings of related injuries to the urinary bladder.

The eye-tracking of social stimuli in patients with Rett syndrome and autism spectrum disorders: a pilot study.

Objective: To compare visual fixation at social stimuli in Rett syndrome (RT) and autism spectrum disorders (ASD) patients.

Method: Visual fixation at social stimuli was analyzed in 14 RS female patients (age range 4-30 years), 11 ASD male patients (age range 4-20 years), and 17 children with typical development (TD). Patients were exposed to three different pictures (two of human faces and one with social and non-social stimuli) presented for 8 seconds each on the screen of a computer attached to an eye-tracker equipment.

Evaluation of the theory of mind in autism spectrum disorders with the Strange Stories test.

Objective: To evaluate the theory of mind in autism spectrum disorders (ASD) and control individuals by applying the Strange Stories test that was translated and adapted to the Portuguese language.

Method: Twenty-eight children with ASD and 56 controls who were all male and aged between 6 and 12 years participated in the study.

Results: There were significant differences between the median scores of the groups for each of the 12 stories of the test and for the sum total of all the median scores.

On skin expansion.

This article discusses skin expansion without considering cellular growth of the skin. An in vivo analysis was carried out that involved expansion at three different sites on one patient, allowing for the observation of the relaxation process. Those measurements were used to characterize the human skin of the thorax during the surgical process of skin expansion.

Brazilian scientific output on autism spectrum disorders.

Objective: This systematic review sought to conduct a general analysis of the Brazilian scientific output on autism spectrum disorders (ASD) published between 2002 and 2009.

Methods: A literature search was conducted in the scientific databases PubMed, SciELO, and LILACS and in the CAPES portal, using keywords such as "autism" and "pervasive developmental disorders".

Results: A total of 93 articles were identified, most of which were authored by researchers from Southeast Brazil and affiliated with public universities.

Concepts of color, shape, size and position in ten children with Rett syndrome.

Individuals with Rett syndrome (RS) present severe motor, language and cognitive deficits, as well as spontaneous hand movement loss. On the other hand, there are strong evidence that these individuals use the eyes with intentional purpose. Ten girls aged 4y8m to 12y10m with RS were assessed with a computer system for visual tracking regarding their ability of indicating with eyes the recognition of concepts of color (red, yellow and blue), shape (circle, square and triangle), size (big and small) and spatial position (over and under) to which they were first exposed to.