In toxicology, it is often of interest to perform a Dunnett’s test to determine whether a pesticide or toxic substance is different at various levels from a control. The problem is complicated by the fact that often a traditional analysis of variance (ANOVA) model cannot be used because of a complex variance structure. For example, it might be of interest to determine whether rats receiving dif...

BACKGROUND This study sought to assess symphyseal morphology in adolescents with different mandibular growth patterns (MGPs) in order to see if a relation exists. MATERIALS AND METHODS In this study the symphyseal parameters (height, depth, and ratio) of normal subjects were compared with four groups with malocclusion (cl III vertical, cl II vertical, cl III horizontal, and cl II horizontal)....

Assessments of chromosomal integrity and structure enable the prevention of diseases associated with the work environment, with the frequencies of chromosomal aberrations and micronuclei often being used as markers in biomonitoring. Owing to their routine manipulation of potentially toxic chemicals, tannery workers as a group merit a more thorough evaluation and discussion. This study investiga...

This study evaluated the stress behavior around short implants in edentulous atrophic mandibles. Six groups included implants with two diameters regular and wide (4 and 5 mm) and three lengths (5, 7 and 9 mm) as follows: Ci9 (9 x 4 mm), Ci7 (7 x 4 mm), Ci5 (5 x 4 mm), Wi9 (9 x 5 mm), Wi7 (7 x 5 mm) and Wi5 (5 x 5 mm). These groups were compared to the control group CG (11 x 4 mm). The analysis ...

It is postulated that secreted soluble factors are important contributors of bystander effect and adaptive responses observed in low dose ionizing radiation. Using multidimensional liquid chromatography-mass spectrometry based proteomics, we quantified the changes of skin tissue secretome--the proteins secreted from a full thickness, reconstituted 3-dimensional skin tissue model 48 hr after exp...

OBJECTIVES This study evaluated the impact and flexural strength and analyzed the fracture behavior of acrylic resins. METHODS Eighteen rectangular specimens were fabricated of Lucitone 550, QC 20 (both unreinforced acrylic resins), Impact 1500 (extra strength impact), Impact 2000 (high impact) according to the manufacturers' instructions. The impact strength was evaluated in notched specimen...

With recent improvements in the commercial feasibility of high pressure pasteurization units, the technology is gaining rapid acceptability across various sectors of food manufacturing, thus requiring extensive validation studies for effective adoption. Various times (1 min to 10 min) and intensity levels (0 MPa to 380 MPa) of elevated hydrostatic pressure were investigated for decontamination ...

O objetivo deste trabalho foi avaliar as fórmulas de Huber (H), Smalian (S) e Newton (N) na cubagem árvores Corimbya citriodora. Inicialmente, a partir da análise três diferentes seccionamentos do fuste, abaixo acima 1,3 m, foram desenvolvidos cinco métodos absoluta com aplicação das H, S N. Nas avaliações realizadas, adotados critérios estatísticos como o erro médio. delineamento utilizado blo...

Aims: To analyse the outcome of DALK in patients with keratoconus terms best corrected and uncorrected visual acuity, average K topographic astigmatism. Settings design: Prospective interventional case series study Material methods: 28 eyes diagnosed were evaluated from August 2009 – July 2011 a tertiary eye care hospital. All underwent outcomes assessed on 4 parameters: Average Keratometric re...

The aim of present study was to assess the effects of individual various essential plant oils on chemical composition, aerobic stability and fermentation characteristics of corn silage and in vitro rumen fermentation and methane emission using gas production technique. Whole crop corn was harvested and ensiled in laboratory scale tubes (4±0.25 kg) for 45 days. Treatments consisted of either cor...