Journal of Hunan University Natural Sciences

The Journal of Hunan University Natural Sciences is the leading Chinese academic journal that publishes articles in all areas of natural sciences. The Journal is meant to serve as a means of communication and discussion of important issues related to science and scientific activities. The Journal publishes only original articles in English which have international importance. In addition to full-length research articles, the Journal publishes review articles. Papers can be focused on fundamental research leading to new methods, or adaptation of existing methods for new applications.

Articles for the Journal are peer-reviewed by third-party reviewers who are selected from among specialists in the subject matter of peer-reviewed materials.

The Journal of Hunan University Natural Sciences is a kind of forum for discussing issues and problems facing science and scholars, as well as an effective means of interaction between the members of the academic community. The Journal of Hunan University Natural Sciences is read bya large number of scholars, and the circulation of the journal is constantly growing.

The Journal of Hunan University Natural Sciences publishes special issues on various and relevant topics of interest to the scientific community.

The Journal of Hunan University Natural Sciences is indexed by Web of Science, Scopus, Current Contents, Geobase and Chemical Abstracts.

 

Articles containing fundamental or applied scientific results in all areas of the natural sciences are accepted for consideration.

The Editorial Board of the Journal of Hunan University Natural Sciences is composed of 25 members and is chaired by Academician Chen Zhengqing. Editor-in-chief is Prof. Yi Weijian.

 

Frequency of publication: monthly

ISSN: 1674-2974

Access to all articles on the website is open, does not require registration or payment.

Journal articles are licensed under the CC BY 4.0 Creative Commons Attribution 4.0 License.

The Journal of Hunan University Natural Sciences takes care of maintaining electronic versions of articles. Data safety is ensured by backing up digital data in accordance with internal regulations. Logical and physical data migration is also provided. Cloud technologies are applied.


For further information, please contact:

E-mail: editorial-office@jonuns.com

Address: Lushan Road (S), Yuelu District, Changsha, Hunan Province, Zip Code: 410082 (Editorial Department of Journal)


Paper Submission 

Announcements

 

Submission open for Volume 49, Issue 9, September, 2022.

Dear Authors,

Please submit your manuscripts through our Online Submission System or directly to the Chief -Editor's e-mail editorial-office@jonuns.com.
Deadline:  September 30, 2022.

Journal of Hunan University Natural Sciences is an international, peer-reviewed open - access journal on all aspects of natural sciences published monthly online.
Manuscripts are peer-reviewed. The first decision is given to authors about 20-30 days after submission; acceptance for publication after revisions is done within seven days.
Aims
Journal of Hunan University Natural Sciences provides an advanced forum on all aspects of natural sciences. It publishes reviews, research papers, and communications. We aim to encourage scientists to publish their experimental and theoretical results in as much detail as possible. There is no restriction on the length of the papers. The full experimental details must be provided so that everyone can reproduce the results. Electronic files and software regarding the full details of the calculation or experimental procedure can be deposited as supplementary electronic material if unable to be published in a normal way.

Scope
The journal covers physics, chemistry, engineering, environmental, earth sciences and biology.

Sections:
•    Biosciences and Bioengineering;
•    Computer and Information Science;
•    Chemistry;
•    Earth-Aerospace-Marine Science;
•    Electrical and Electronic Engineering;
•    Education;
•    Engineering;
•    Energy;
•    Environmental Sciences;
•    Economy;
•    Finance;
•    Materials Science;
•    Mathematics;
•    Medicine;
•    Neurosciences ;
•    Physics;
•    Pharmaceuticals.


The authors should prepare the articles strictly according to the template. Please check the link http://jonuns.com/docs/template.doc.

All articles published in are published in full open access. In order to provide free access to readers, and to cover the costs of peer review, copyediting, typesetting, long-term archiving, and journal management, an article processing charge (APC) of EUR 430 applies to papers accepted after peer - review.
Submitted papers should be well formatted and use good English. Authors may use our English editing service (EUR 70-100) prior to publication or during author revisions. The articles that native English speakers do not edit are not allowed for publication.
The journal publishes articles in English or Chinese.
Articles published in the Journal of Hunan University Natural Sciences will be Open-Access articles distributed under the terms and conditions of the Creative Commons Attribution License (CC BY). The copyright is retained by the author(s).
Posted: 2022-07-16 More...
 
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Last Research Articles

This study aimed to screen different solvents (ethanol, ethyl acetate, and n-hexane) of Coelarthrum muelleri for secondary metabolites and subject them to physicochemical analysis, including ash, swelling index, pH, and color tests with different reagents. Seaweeds have been recognized in the pharmaceutical industry for their broad spectrum of structural diversity and wide range of pharmacological activities for health and disease management. Coelarthrum muelleri from red algae was taken as a sample for this study. It was collected from the coastal range of Buleji and Kakapir beaches in Karachi, Pakistan. Three extracts of Coelarthrum muelleri (ethanol, ethyl acetate, and n-hexane), depending on their polarity, were subjected to phycochemicals of ten chemical compounds (glycosides, quinones, phenols, coumarins, steroids, alkaloids, saponins, flavonoids, terpenoids, and tannins) and physicochemical test for ash value, pH value, and swelling index. The dried powder of Coelarthrum muelleri was tested for color identification with eight other reagents. The preliminary phycochemical screening of Coelarthrum muelleri showed the presence of terpenoids, steroids, tannins, saponins, phenols, coumarins, glycosides, and quinones and the absence of alkaloids. Among three extracts, ethanol and ethyl acetate extracts show all compounds present except alkaloids. Next, n-hexane showed all compounds positive except for alkaloids, saponins, and quinones, which were absent. The physicochemical indicators are 38 ml of the swelling index, 2.3 pH of 1% Coelarthrum muelleri, and 3.16 pH of 10%. The total ash value is 24.86 + 0.15%, 8.4 + 0.1% for acid insoluble ash, and 7.1 + 0.1% for water-soluble ash. This study on the present seaweed will be helpful in the identification of secondary metabolites as well as be valuable for authenticating the purity and quality.

 

Keywords: adulteration, secondary metabolites, phycochemicals, seaweed, Coelarthrum muelleri.

 

https://doi.org/10.55463/issn.1674-2974.49.6.28

 

 

Syed Shafquat Rizvi, Ambreen Huma, Mirza Tasawer Baig, Munawar Rasheed, Tahseen Ahmed, Sadaf Ibrahim
2022-07-29
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In orthopedics, increasing the implant lifetime minimizes the need for repair surgery, which benefits the patient’s health and the practice bottom line. The quality of the materials and designs is always being enhanced to reach the ultimate objective of a single implant that would last a person their whole life. The purpose of orthopedic treatments is to enhance the patient’s ability to participate in normal activities and socialize, and the implant carrier should not be subjected to unnecessary limitations. As a result, implants are exposed to severe mechanical stress and the inherently hostile in vivo biochemical environment, which is particularly prevalent in younger and more active people. The development of hip prosthesis design and materials has taken this path in recent years. This development is one of the most challenging problems in the field of implant technology in this century. In this study, various materials, including ceramics, glass, metal alloys, polymers, metal alloys, composites, and others, were used in an effort to combine biocompatibility with fatigue resistance, stiffness, hardness, the capacity to withstand dynamic and static stresses, and excellent chemical and mechanical wear resistance. The fracture toughness of zirconia-toughened alumina composites is increased by a factor of four compared to alumina by itself. Zirconia was first included in alumina as a densifier; however, it was not until much later that zirconia was used as a reinforcement particle to increase the level of toughness in the material. The use of ZTA to improve the mechanical properties of orthopedic implants has lately been the subject of several studies, which have all just been concluded. This research includes a literature review primarily concerned with the Biolox Delta composite, its microstructural properties, manufacturing and prosthesis materials for it to identify as a bioceramic material for medical applications.

 

Keywords: Biolox, composites, orthopedics, hip.

 

https://doi.org/10.55463/issn.1674-2974.49.6.27

Alaa S. Taeh, Farhad M. Othman, Alaa A. Abdul-Hamead
2022-07-25
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This study aims to examine the determinants of entrepreneurial learning that depend on entrepreneurial intentions in college students in Lampung, Indonesia. The survey was born with an online questionnaire from June until July 2021. Data were processed using SmartPLS 3.2.7. The data analysis found significant direct and indirect effects. The constructing indicators can predict latent variables with a recommended value of more than 0.7. We also found that this research contributes additional conceptual framework theories for lecturers teaching entrepreneurship learning and decision-makers in universities to focus more on developing entrepreneurship education curricula.

 

Keywords: predicting, entrepreneurship learning, factors, entrepreneurial intent, student universities.

 

https://doi.org/10.55463/issn.1674-2974.49.6.26

Yusni Arni, Siswandari, Muhammad Akhyar, Asrowi
2022-07-25
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Managing companies’ integral functioning today is a challenge that should not be isolated since external dynamics require immediate responses to customers’ needs. This article aims to generate a proposal for an organizational management model for manufacturing companies in the state of Hidalgo, Mexico. In addition to serving as a tool to achieve competitiveness, it provides integral development and in turn generates a regional development that can be expanded. A methodology with a quantitative, descriptive and explanatory approach was used, by collecting information from 239 economic production units with more than 11 employees in their workforce, to which questionnaires were applied by electronic means. This request was addressed mainly to the managers, supervisors and owners of the organizations, then the information was codified, processed and analyzed. The results evidenced that the organizational management should be composed of twelve of the 20 possible elements: market management, operations, financial, knowledge and human resources, innovation, corporate social responsibility, environmental analysis, strategic management and, finally, trade and sales. It was considered that the above-mentioned elements formed the econometric model that these variables explained organizational management by 92 per cent, according to the value obtained by R-squared adjusted with a value of 0,928210. Therefore, it is presented as a feasible proposal for application in manufacturing companies which can gradually increase their competitiveness influencing development.

 

Keywords:  econometric model, organizational management, manufacturing companies.

 

https://doi.org/10.55463/issn.1674-2974.49.6.25

María de Lourdes Amador Martínez, Raymundo Lozano Rosales, Edgar Iván Roldán Cruz
2022-07-25
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Until now, there has been no specific regulation regarding the crime of political corruption in the laws and regulations in Indonesia, but this kind of activity has become familiarly mentioned. This phenomenon makes the legal position of the criminal act of political corruption worthy of being a separate offense in a material criminal law regulation. The purpose of writing this article is to determine the legal position which can later be used as material to formulate a new criminal act in the form of political corruption in the applicable positive law. This article uses the normative juridical research method through statute approach, comparative approach, and conceptual approach, which aims to critically examine the legal position of the criminal act of political corruption as part of the reflection of money politics practices. The study results indicate that in the context of future legal reforms, money politics as a form of political corruption must be regulated as a special offense in the law on eradicating corruption. The novelty offered by the authors in this article is the idea of the need to criminalize political corruption as a separate crime in the future.

 

Keywords: democracy, political corruption, general election, money politics, crime.

 

https://doi.org/10.55463/issn.1674-2974.49.6.24

Handoko Alfiantoro, Abdul Maasba Magassing, M. Syukri Akub, Judhariksawan
2022-07-25
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