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1

A note on matchings and regularity of graphs

Let G be a simple graph. We introduce the notion of comb-match(G), and prove that reg(I(G)) ⩽ comb-match(G)+1. This improves some known bounds.

Author: Ha Dao Thi Thanh

Keyword: Regularity Edge ideal Matching Cameron-Walker graph.

2

AID OF THE GERMANY DEMOCRATIC REPUBLIC FOR THE RECONSTRUCTION OF VINH CITY, NGHE AN PROVINCE FROM 1973 TO 1980

From 1973 to 1980, responding to the call of the government of the Democratic Republic of Vietnam, the Germany Democratic Republic provided aid for reconstruction, creating fundamental changes in the...

Author: Cuong Le The, Thanh Luong Van

Keyword: AID Germany Democratic Republic Democratic Republic of Vietnam Vinh city 1973-1980.

3

Oroxylin A, as a potential inhibitor of rheumatoid arthritis: in silico experiment based on network pharmacology and molecular docking

Oroxylin A is a potential inhibitory compound that could be applied to treat rheumatoid arthritis (RA). Rheumatoid arthri-tis is a chronic, systemic autoimmune disease that can lead to joint damage,...

Author: Thuy Phan Thi

Keyword: Oroxylin A Rheumatoid arthritis network pharmacology molecular docking.

4

Enhancing network performance with improved random early detection

Congestion has become an important issue affecting the per-formance of network systems. Active Queue Management (AQM) algorithms are crucial in ensuring network stability. The first active queue...

Author: Dien Vu Van

Keyword: Active queue management congestion average queue size RED threshold.

5

Organize teaching of probability situations to develop collaborative problem-solving skills for 7th grade students

In the current innovation in teaching mathematics, fostering students' collaborative problem-solving skills is one of the key objectives for improving learning quality. In teaching probability,...

Author: Chung Do Van, Thang Nguyen Chien, Ha Nguyen Thanh, Phuong Phung Lan, Thuy Chu Minh

Keyword: Critical thinking collaborative problem-solving probability teaching situations seventh-grade students

6

A study proposing improvements to overlay network architecture to mitigate the impact of distributed denial-of-service attacks on website systems

Denial-of-service (DoS) attacks on website systems have become increasingly sophisticated. These attacks are evolving at a pace and complexity that outstrips the capabilities of current defensive...

Author: Vu Phuong Thi

Keyword: Cyber attacks denial of service attacks distributed denial of service attacks website overlay network

7

The results of culture snub-nose pompano (Trachinotus blochii Lacépède, 1801) in the “in Pond Raceway System” in Khanh Hoa province

The study aims to evaluate the environmental parameters and growth rate of snu-bnose pompano cultured in the “In Pond Raceway System - IPRS”. Fingerlings 5-6 cm in length were stocked at a density of...

Author: Hà Nguyen Văn, Thiết Chu Chí, Dung Nguyen Thanh, Thảo Nguyen Thi Huong, Tan Tran Trong, Dang Nguyen Van, Bao Nguyen Tan

Keyword: Snub-nose pompano In Pond Raceway System IPRS environmental parameters growth

8

Applying PDCA model in managing Mathematics teaching activities in primary schools towards developing students' capacity - some theoretical issues

The PDCA (Plan - Do - Check - Act) model is widely applied in quality management and can be adapted to suit educational settings, particularly in improving teaching quality and fostering student...

Author: Hà Đỗ Thị

Keyword: PDCA model mathematics teaching activities primary school student competencies management of mathematics teaching activities

9

Group conflicts during collaborative learning: perceptions of students at a university in Vietnam

Collaborative learning, widely used in universities, fosters essential skills like critical thinking and teamwork through knowledge sharing. However, group conflict can hinder this process. This study...

Author: Nguyen Dang Thi

Keyword: Group conflict collaborative learning student’s perceptions factors challenges.

10

Research on techniques to en-hance DDoS attack prevention using cumulative Sum and back-propagation algorithms

This paper focuses on enhancing DDoS attack prevention ca-pabilities through the combination of the Cumulative Sum (CUSUM) algorithm and the Backpropagation method, aiming to detect attack indicators...

Author: Phuong Hoang Thi

Keyword: Network attack CUSUM algorithm Backpropagation algo-rithm Anti-spoofing DDoS attack

Vinh University journal of science

Tạp chí khoa học Trường Đại học Vinh

ISSN: 1859 - 2228

Governing body: Vinh University

  • Address: 182 Le Duan - Vinh City - Nghe An province
  • Phone: (+84) 238.3855.452 - Fax: (+84) 238.3855.269
  • Email: vinhuni@vinhuni.edu.vn
  • Website: https://vinhuni.edu.vn

 

License: 163/GP-BTTTT issued by the Minister of Information and Communications on May 10, 2023

Open Access License: Creative Commons CC BY NC 4.0

 

CONTACT

Editor-in-Chief: Assoc. Prof., Dr. Tran Ba Tien
Email: tientb@vinhuni.edu.vn

Deputy editor-in-chief: Assoc. Prof., Dr. Phan Van Tien
Email: vantienkxd@vinhuni.edu.vn

Sub-Editor: Dr. Do Mai Trang
Email: domaitrang@vinhuni.edu.vn

Editorial assistant: Msc. Le Tuan Dung, Msc. Phan The Hoa, Msc. Pham Thi Quynh Nga, Msc. Tran Thi Thai

  • Address: 4th Floor, Executive Building, No. 182, Le Duan street, Vinh city, Nghe An province.
  • Phone: (+84) 238-385-6700 | Hotline: (+84) 97-385-6700
  • Email: editors@vujs.vn
  • Website: https://vujs.vn

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