Publications by authors named "J V Melo"

Article Synopsis
  • The study emphasizes the importance of soil conservation and the risks of soil erosion on steep slopes, necessitating effective erosion control strategies.
  • Researchers investigated the mechanical properties of fibers treated with different concentrations of sodium hydroxide (NaOH) for geotextile manufacturing, simulating natural degradation conditions.
  • Results indicated that while treated fibers initially lost some strength, the 6% NaOH treatment showed potential for higher tensile strength and durability, making it a promising option for biodegradable geotextiles.
View Article and Find Full Text PDF

Objective: To determine the frequency of pregnancy in patients submitted to uterine artery embolization (UAE) for the treatment of uterine leiomyomas who undergo medical follow-up at a clinic in Belo Horizonte.

Methods: This study consists of a retrospective cohort study. It is based on data analysis of electronic medical records of patients who underwent the embolization procedure for uterine leiomyomas between March 2003 and March 2018.

View Article and Find Full Text PDF

A total of 57 European, Canadian and North American postage stamps, all in red shades, were analyzed with the main goal of unraveling which pigments or dyes were used to produce the red color in the period dated from 1841 to 1899. Both non-destructive techniques, including X-Ray Fluorescence (XRF), Fiber Optics Reflectance Spectra (FORS), and Steady State Fluorescence Spectroscopy, and destructive methods such as High-Performance Liquid Chromatography coupled with Diode-Array Detection (HPLC-DAD) and Electrospray Ionization High-Resolution Mass Spectrometry (ESI-HRMS), were utilized for a comprehensive analysis. The examined red shades were identified as originating from either a single pigment or dye, or a combination of both.

View Article and Find Full Text PDF

Sequential sampling plans are employed for the rapid characterization of infestations to facilitate decision-making. This study aimed to (i) investigate the spatial distribution of Oligonychus punicae (Hirst) in grapevine crops, (ii) determine the most representative branch, leaf, and leaf region for monitoring, and (iii) develop a sequential sampling plan for decision-making to control O. punicae in the table grape varieties Arra 15, BRS Vitória, Cotton Candy, Sugar Crisp, and Timpson at different phenological stages.

View Article and Find Full Text PDF

A PHP Error was encountered

Severity: Warning

Message: A non-numeric value encountered

Filename: controllers/Author.php

Line Number: 219

Backtrace:

File: /var/www/html/application/controllers/Author.php
Line: 219
Function: _error_handler

File: /var/www/html/index.php
Line: 316
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: A non-numeric value encountered

Filename: libraries/Pagination.php

Line Number: 413

Backtrace:

File: /var/www/html/application/controllers/Author.php
Line: 274
Function: create_links

File: /var/www/html/index.php
Line: 316
Function: require_once