Nghiên cứu được thực hiện nhằm xác định giống và tuổi gốc ghép, kích thước chồi ghép nồng độ NAA phù hợp cho vi bưởi Năm roi trong điều kiện in vivo. Các thí nghiệm bố trí hoàn toàn ngẫu nhiên hai nhân tố, tỷ lệ sống (TLS) sự sinh trưởng của ghi nhận 3 ngày/lần 30 ngày. Kết quả thấy:TLS trên cam Mật, Lông, Sành, Hạnh, Chanh ở 7, 11 15 ngày đều thấp; 7 (lõi chưa hóa gỗ) thích ghép. Tiền xử lý mộ...

OBJECTIVE The purpose of this study was to develop a new method for automated mass detection in digital mammographic images using templates. MATERIALS AND METHODS Masses were detected using a two steps process. First, the pixels in the mammogram images were scanned in 8 directions, and regions of interest (ROI) were identified using various thresholds. Then, a mass template was used to catego...

Reactive oxygen intermediates (ROI) are metabolites produced by aerobic cells which have been linked to oxidative stress. Evidence reported in vertebrates indicates that ROI can also act as messengers in a variety of cellular signaling pathways, including those involved in innate immunity. In a recent study, an inhibitor of NF-kB transcription factors was identified in the scallop Argopecten pu...

In ERP and other large multidimensional neuroscience data sets, researchers often select regions of interest (ROIs) for analysis. The method of ROI selection can critically affect the conclusions of a study by causing the researcher to miss effects in the data or to detect spurious effects. In practice, to avoid inflating Type I error rate (i.e., false positives), ROIs are often based on a prio...

Accurate characterization of tissue pathologies using ultrasonic attenuation is strongly dependent on the accuracy of the algorithm that is used to obtain the attenuation coefficient estimates. In this paper, computer simulations were used to compare the accuracy and the precision of the three methods that are commonly used to estimate the local ultrasonic attenuation within a region of interes...

Introduction: In Islamic countries in the month of Holy Ramadan many Muslims based on their religious Legislation refuse fluid intake during the fasting time though instructed to drink after injection of Tc-99m Methylene-diphosphonates [Tc-99m MDP] used for skeletal scintigraphy. We aimed to establish whether fluid restriction in Tc-99m MDP skeletal scintigraphy has an impact on its quality. M...