Techniques

This study aims to evaluate the safety and effectiveness of transperitoneal laparoscopic pyeloplasty in treating ureteropelvic junction obstruction (UPJO) in children. Methods: This was a prospective study, including pediatric patients aged ≤16 years who underwent transperitoneal laparoscopic pyeloplasty from June 2021 to June 2024.

6p vihizuzen 26-05-2025 1 0   Download

To identify single nucleotide polymorphisms (SNPs) in exon 7 of A20 gene in non-Hodgkin lymphoma (NHL) patients and evaluate the association between these SNPs and some prognostic indicators in NHL patients.

8p vihizuzen 26-05-2025 0 0   Download

Tuberculosis (TB) remains a major global health challenge, with early and accurate diagnosis being critical for effective disease control. Traditional acid-fast bacilli (AFB) smear microscopy has limited sensitivity, particularly in smear-negative cases. The advent of molecular techniques, such as the GeneXpert MTB/RIF assay and real-time PCR, has significantly improved the rapid detection of Mycobacterium tuberculosis (MTB) and rifampicin resistance.

6p vihizuzen 26-05-2025 1 1   Download

The relationship between periampullary duodenal diverticulum (PAD) and ERCP outcomes remains unclear. This study aims to assess the effects of PAD on cannulation success, complications, and treatment efficacy in patients with bile duct stones.

5p vihizuzen 26-05-2025 1 1   Download

To predict the survival probability of septic patients over time, integrating the Sequential Organ Failure Assessment (SOFA) score with other key clinical features. Subject and method: Using stepwise and exhaustive search techniques, we analyzed time-dependent data from 125 patients in the Intensive Care Unit of the 108 Military Central Hospital, collected during a cohort study conducted between December 2019 and February 2021.

11p vihizuzen 26-05-2025 2 1   Download

Lecture Finite Element Method - Dr. Danh Truong Nguyen (Eng) is a comprehensive introduction to the fundamental principles and applications of the finite element method in engineering. The lecture covers topics such as energy principles, elastic problems, bar and truss elements, beam and frame analysis, plane stress and strain, and numerical integration techniques. This material is especially useful for students and professionals in mechanical, civil, and structural engineering.

59p hoatrongguong02 15-05-2025 1 1   Download

Cost-Benefit Analysis (CBA) is an essential tool for economic decision-making, providing a systematic way to evaluate the financial value of projects. It employs mathematical techniques to quantify benefits and costs, enabling decision-makers to compare various options. By translating potential gains and expenses into monetary values, CBA identifies projects that yield the highest net benefits.

12p vijiraiya 19-05-2025 1 1   Download

Sperm preparation is a technique to select good quality sperm for sperm freezing and artificial insemination. This study investigated the effects of swim-up time and concentration gradient centrifugal force on the quality of Boer goat sperm.

8p vijiraiya 19-05-2025 0 0   Download

Lecture Cryptography: Cryptology Overviews introduces the fundamental concepts of cryptography and its applications. The lecture explores core terminologies, classical cipher systems, and the evolution of algorithms in cryptographic science. It sets the stage for understanding the practical use of cryptography in securing information. Please refer to the lecture for more details!

60p hoatrongguong03 15-05-2025 1 1   Download

Lecture Cryptography: Modern Symmetric Ciphers (Part 1) focuses on classical symmetric cipher algorithms and introduces modern techniques. The lecture explores block ciphers, stream ciphers, and provides an in-depth analysis of the Data Encryption Standard (DES). This serves as a foundation for understanding advanced symmetric encryption. Please refer to the lecture for more details!

64p hoatrongguong03 15-05-2025 1 1   Download

Lecture Cryptography: Modern Symmetric Ciphers (Part 2) delves into the Advanced Encryption Standard (AES) and modes of operation. The lecture explains how AES improves upon previous methods and introduces multiple techniques for secure encryption processing. It also examines how data can be handled in different cipher modes. Please refer to the lecture for more details!

74p hoatrongguong03 15-05-2025 1 1   Download

Lecture Cryptography: Modern Asymmetric Ciphers (Part 1) transitions to asymmetric cryptography, offering a review of stream ciphers, DES, and AES. The lecture sets the groundwork for more complex public-key cryptography systems. It also touches on potential enhancements like dynamic AES. Please refer to the lecture for more details!

44p hoatrongguong03 15-05-2025 3 1   Download

"Machine Vision – Chapter 3: Intensity Transformations and Spatial Filtering" explores essential techniques in image preprocessing, including contrast enhancement, histogram equalization, and filtering methods such as smoothing and sharpening. These operations are fundamental for improving image quality and extracting meaningful features in machine vision applications.

70p phongtrongkim0906 16-05-2025 1 1   Download

Lesson "Machine Vision" Chapter 7 - Object Recognition, compiled including the following main contents: Introduction; Pattern Matching; Feature-based Methods; Artificial Neural Networks.

106p phongtrongkim0906 16-05-2025 1 1   Download

Esophageal atresia is a congenital defect that requires prompt surgical treatment. Despite advances in neonatal care and surgical techniques, complications and mortality remain significant, especially in cases with other congenital anomalies. This study aims to investigate the clinical features and treatment outcomes of esophageal atresia at Hue Central Hospital.

4p vijiraiya 19-05-2025 1 1   Download

Composite materials are widely used in aesthetic dental restorations due to their advantages, including minimal invasive preparation, high mechanical strength, adhesive durability, biocompatibility, time and cost-effectiveness. This study investigates the effect of enamel-shade composite thickness on the final color values of restorations using a two-layer technique to replace enamel and dentine.

7p vijiraiya 19-05-2025 1 1   Download

To overcome the technical restriction caused by the actuator shortfall, this paper introduces a new control strategy for underactuated AUVs(UAUVs) with five degrees of freedom, utilising the recursion technique and an artificial neural network.

15p vijiraiya 19-05-2025 3 1   Download

In modern sports, besides tactics, techniques and physical strength, psychological factors play an important role in training and competition results. The psychological state of training, whose main components are motivation and emotion to be very diverse in terms of nuances and intensity. It can help the practitioner feel excited, confident, full of energy and agile.

7p vimitsuki 06-05-2025 1 1   Download

To establish a protocol for analyzing NK cell cytotoxic activity (NKAc) in breast cancer patients using the flow cytometric technique. Methods: We first optimized the protocol based on the previously published studies, focusing on choosing fluorescent dye concentration, incubation time length, and Effector:Target cell ratio (E:T ratio). Subsequently, we preliminarily applied the established protocol to characterize NKAc in some breast cancer patients and healthy controls.

9p vimitsuki 06-05-2025 3 1   Download

This study presents a novel polyp segmentation approach using ResUnet++. Trained on Kvasir-SEG and CVCClinicDB, ResUnet++ significantly outperforms traditional UNet and ResUnet. Its residual blocks and attention mechanisms enhance feature extraction, leading to improved segmentation in challenging cases.

9p visarada 28-04-2025 1 1   Download