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Analysis of Aroma Components of Enzymatic Hydrolysis Products of Oak Lignin from Different Producing Areas 不同产地橡木木质素酶解产物香气成分分析
Journal of International Students Pub Date : 2024-04-26 DOI: 10.62051/ijnres.v2n2.02
Hao Zheng
{"title":"Analysis of Aroma Components of Enzymatic Hydrolysis Products of Oak Lignin from Different Producing Areas","authors":"Hao Zheng","doi":"10.62051/ijnres.v2n2.02","DOIUrl":"https://doi.org/10.62051/ijnres.v2n2.02","url":null,"abstract":"The morphology and structure of lignin in French oak, American oak and Chinese Mongolian oak were observed and compared by scanning electron microscopy (SEM). The results showed that the surface of lignin after enzymatic hydrolysis was more irregular and the contact area was obviously increased. GC-MS detected 3 kinds of lignin, 4 kinds of components and 30 kinds of volatile substances. The lignin content of French oak was the highest (8911.5 ± 512.2 μg/L, 29 kinds), followed by that of American oak (8071.7 ±541.9 μg/L, 26 kinds), and that of Mongolian oak was the least (7903.3 ± 492.5 μg/L, 26 kinds). The results of aroma characteristics analysis, principal component analysis and heat map analysis showed that the aroma components of the three kinds of oak lignin were significantly different. French oak lignin could provide more volatile phenols, with obvious smoky, woody and sweet flavor. Mongolian oak lignin carries more phenolic and ester compounds, providing a relatively soft floral, fruity flavor. American oak lignin has a relatively average aroma substance content, which can bring strong and complex complex aroma characteristics.","PeriodicalId":46680,"journal":{"name":"Journal of International Students","volume":"2 2","pages":"12-23"},"PeriodicalIF":0.0,"publicationDate":"2024-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://wepub.org/index.php/IJNRES/article/download/1385/1503","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147878985","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Effects of Climate Change on Islamic Shari’a Objectives 气候变化对伊斯兰教法目标的影响
Journal of International Students Pub Date : 2024-02-10 DOI: 10.70436/nuijb.v3i02.271
Khalilullah Nasih, Ihsanullah Nasih, Arifullah Zia
{"title":"Effects of Climate Change on Islamic Shari’a Objectives","authors":"Khalilullah Nasih, Ihsanullah Nasih, Arifullah Zia","doi":"10.70436/nuijb.v3i02.271","DOIUrl":"https://doi.org/10.70436/nuijb.v3i02.271","url":null,"abstract":"‌Caring for trees and greening the environment is significant for the protection of five major principles and objectives (religion, soul, intellect, generation and assets (of the Islamic Shari’ah. Planting trees has a clear effect on human physical and mental health. On the other hand, planting trees plays a significant role in the development of the economy, through which many agricultural products are obtained. Hence, for this, the rules and regulations that have been made at the national and international levels ought to be fully implemented. Generally, cutting down of trees and deforestation should be prohibited and criminals should be punished. There is an inseparable relationship between trees, shrubs, the natural environment and humans that has a direct connection with the souls and spirits of humans. The human soul feels comfortable and peaceful in the green environment. If you look at the nature of human, Allah subhanahu wa ta’ala (SWT) created Adam Alaihis Salam (peace be upon him) and placed him in Paradise. He lived there and benefited from the gardens of Paradise. As Allah subhanahu wa ta’ala (SWT) has mentioned in the Holy Qur'an, human is naturally created in such a way that they feel at peace with the green environment. Therefore, a green environment should be provided and every possible measure should be applied when it is destroyed.","PeriodicalId":46680,"journal":{"name":"Journal of International Students","volume":"03 ICCC(special)","pages":"487-490"},"PeriodicalIF":0.0,"publicationDate":"2024-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://nuijb.nu.edu.af/index.php/nuijb/article/download/271/209","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147901992","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Structural Challenges of Low-Emission Vessels: A Review 低排放船舶的结构挑战：综述
Journal of International Students Pub Date : 2023-11-27 DOI: 10.5750/ijme.v165ia2.1233
Jean-Baptiste R. G. Souppez
{"title":"Structural Challenges of Low-Emission Vessels: A Review","authors":"Jean-Baptiste R. G. Souppez","doi":"10.5750/ijme.v165ia2.1233","DOIUrl":"https://doi.org/10.5750/ijme.v165ia2.1233","url":null,"abstract":"Increasing regulatory pressures to reduce shipping emissions have led to the design of low-emission vessels. These may rely on more sustainable propulsion and/or resistance reduction to reduce fuel consumption. However, the structural implications of such design strategies remain to be fully ascertained. This paper presents a review of the recent literature to identify the structural challenges associated with the next generation of sustainable vessels and tackles a range of available design options intended to reduce emissions. The results suggest that structural design has a fundamental role to play in enabling the application of low-emission design strategies on both small crafts and ships, but further developments in rules and regulations are necessary. It is anticipated these findings may support future regulatory advancements and may contribute to improvements in the design of sustainable vessels.","PeriodicalId":46680,"journal":{"name":"Journal of International Students","volume":"165 A2","pages":"165-178"},"PeriodicalIF":0.0,"publicationDate":"2023-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.intmaritimeengineering.org/index.php/ijme/article/download/1233/430","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147888581","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
The transitional experiences of an international student facing chronic physical illness 面临慢性身体疾病的留学生的过渡经历
IF 2
Journal of International Students Pub Date : 2023-11-20 DOI: 10.32674/jis.v15i1.5396
Yaone Duduetsang Matsagopane
{"title":"The transitional experiences of an international student facing chronic physical illness","authors":"Yaone Duduetsang Matsagopane","doi":"10.32674/jis.v15i1.5396","DOIUrl":"https://doi.org/10.32674/jis.v15i1.5396","url":null,"abstract":"This article illuminates the author’s transitional experiences during a chronic physical illness in China. Although many studies have considered patients’ chronic physical illnesses, few have considered international students’ experiences of chronic physical illness by means of the narrative approach. The author examines her chronic physical illness journey based on transitional experience and narrative identity theory. The narrative indicates a sense of identity, agency, and adaptation to change, and the exploration of such experiences could significantly contribute to the literature on students’ chronic physical health from a student’s perspective.","PeriodicalId":46680,"journal":{"name":"Journal of International Students","volume":"41 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2023-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139255783","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Canadian Universities in the Pandemic 大流行病中的加拿大大学
IF 2
Journal of International Students Pub Date : 2023-11-20 DOI: 10.32674/jis.v15i1.5135
Dale Kirby
{"title":"Canadian Universities in the Pandemic","authors":"Dale Kirby","doi":"10.32674/jis.v15i1.5135","DOIUrl":"https://doi.org/10.32674/jis.v15i1.5135","url":null,"abstract":"The COVID-19 pandemic had a significant impact on university enrollments around the world and caused significant challenges for students. This study examined how Canadian universities responded to the financial impacts of the pandemic on international and domestic students and how these responses differed. This work involved the identification and collection of public statements issued by selected Canadian universities during the first two years of the pandemic. This consisted of about 14,000 items posted on university public websites. Under the broad framework of the ecological theory of inclusion, an emergent theme content analysis was used to examine and organize data. This analysis confirmed that there was far less financial assistance provided to international students, and the amount of assistance provided to them was significantly disproportionate to the overall revenues generated by their enrollment at Canadian institutions.","PeriodicalId":46680,"journal":{"name":"Journal of International Students","volume":"8 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2023-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139259633","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
An Education in Exploitation 剥削教育
Journal of International Students Pub Date : 2023-11-07 DOI: 10.32674/jis.v15i1.5799
Helen Liu
{"title":"An Education in Exploitation","authors":"Helen Liu","doi":"10.32674/jis.v15i1.5799","DOIUrl":"https://doi.org/10.32674/jis.v15i1.5799","url":null,"abstract":"Canada’s international education system is highly unregulated, with many recruitment agencies and homestay services taking agency in providing these services to students, leaving them vulnerable and open to exploitation. Furthermore, many school boards often do not take responsibility in arranging these services for international students, resulting in a lack of accountability that can further contribute to a cycle of deceit and students navigating this process with limited knowledge or oversight. Utilizing international student security (ISS), this article draws on interviews with six Canadian secondary school teachers from and two Chinese international secondary school students all located in Toronto and the Greater Toronto Area (GTA) to reveal the profitability of international students, and the exploitative nature of international student services providers like recruitment agencies and homestay companies. Ultimately, the article identifies responsible key stakeholders and beneficial institutional and policy improvements to better regulate international education and protect these vulnerable international youth.","PeriodicalId":46680,"journal":{"name":"Journal of International Students","volume":"1 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135539367","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Which Factors Drive Major Change and University Dropout? An Analysis on International Degree-Seeking Students at German Universities 哪些因素导致专业变化和大学辍学?德国大学国际学位学生现状分析
Journal of International Students Pub Date : 2023-10-30 DOI: 10.32674/jis.v15i1.5434
Theresa Thies, Susanne Falk
{"title":"Which Factors Drive Major Change and University Dropout? An Analysis on International Degree-Seeking Students at German Universities","authors":"Theresa Thies, Susanne Falk","doi":"10.32674/jis.v15i1.5434","DOIUrl":"https://doi.org/10.32674/jis.v15i1.5434","url":null,"abstract":"Germany is a non-English speaking country with a large and growing number of incoming international degree-seeking students. However, their estimated dropout rates are high. This study aims to investigate whether specific challenges faced by international students (e.g., social and academic integration, language learning, financial situation, residence-permit related regulations) are associated with major change and university dropout. The discrete-time competing risk analyses of the first three semesters of an online panel survey of international students in Germany (International Student Survey; N = 3,660) show that satisfaction with the degree program’s content decreases the risk of major change and university dropout. Moreover, the nationality and the associated temporary or permanent residence permit are considered in the students’ educational decisions. Based on the results, we recommend improving the match between students’ interest and their fields of study. Measures to prevent international students from dropping out must thus begin before they start their studies.","PeriodicalId":46680,"journal":{"name":"Journal of International Students","volume":"237 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136023337","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Regionalization and Higher Education Student Mobility in East Africa: Examination of Opportunities and Challenges from the Ugandan Context 东非的区域化和高等教育学生流动:从乌干达的角度审视机遇和挑战
Journal of International Students Pub Date : 2023-10-13 DOI: 10.32674/jis.v14i4.5976
Tibelius Amutuhaire
{"title":"Regionalization and Higher Education Student Mobility in East Africa: Examination of Opportunities and Challenges from the Ugandan Context","authors":"Tibelius Amutuhaire","doi":"10.32674/jis.v14i4.5976","DOIUrl":"https://doi.org/10.32674/jis.v14i4.5976","url":null,"abstract":"There is an increasing trend toward regionalization as higher education adapts to openness and globalization. In response, East African countries formed networks and partnerships that strengthened business, higher education, student and staff mobility, and research. This is because regionalization is embedded in East Africa's economy, politics, culture, and social norms. In addition, regionalization is influenced by internationalization and globalization. It promises development opportunities, although challenges are inevitable. This paper examines the contributions of regional student mobility to East Africa's development. We use neoliberal and world systems theories to illuminate the advantages and disadvantages of regionalizing higher education and explain how partner states can maximize opportunities and minimize challenges. Data was collected through convenience sampling of two hundred international students and two staff members in international students' offices. Data analysis revealed that the regionalization of East African higher education reflects historical power relations; it has benefits though founded on inequalities.","PeriodicalId":46680,"journal":{"name":"Journal of International Students","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135804758","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Examining Service Learning as an Approach to Intensify International Students’ Multicultural Understanding 考察服务学习作为加强国际学生多元文化理解的途径
Journal of International Students Pub Date : 2023-10-13 DOI: 10.32674/jis.v15i1.5499
Faizah Idrus, Syakirah Halim, A.
{"title":"Examining Service Learning as an Approach to Intensify International Students’ Multicultural Understanding","authors":"Faizah Idrus, Syakirah Halim, A.","doi":"10.32674/jis.v15i1.5499","DOIUrl":"https://doi.org/10.32674/jis.v15i1.5499","url":null,"abstract":"The purpose of this investigation was to identify, examine, and analyse the opinions of four international postgraduate students who embarked on a service-learning project required by the course taken in Semester 2, 2021/2022. It included engaging in community service, connection to their academic endeavours, reporting the outcomes, critical reflection, and reciprocity. Choral speaking activities were selected as the tool for their engagement with children in the community. The qualitative approach was chosen as the research design, employing in-depth semi-structured interviews. The findings pointed to the beneficial aspects of service-learning which include: (1) enhances multicultural understanding; (2) improves civic involvement; (3) acknowledges that academic work has real-world importance; and (4) promotes language learning as well as reciprocity, that need to be improved.","PeriodicalId":46680,"journal":{"name":"Journal of International Students","volume":"167 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135804756","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
What Does it Mean to ‘Belong’?: “归属”是什么意思?：
Journal of International Students Pub Date : 2023-10-13 DOI: 10.32674/jis.v15i1.5783
Dania Mohamad, Keenan Daniel Manning
{"title":"What Does it Mean to ‘Belong’?:","authors":"Dania Mohamad, Keenan Daniel Manning","doi":"10.32674/jis.v15i1.5783","DOIUrl":"https://doi.org/10.32674/jis.v15i1.5783","url":null,"abstract":"Following the gradual post-COVID-19 return of international student flows, it is important to examine how higher education institutions and international students are reacting to their new environment and how they relate to each other. Central to this relationship is the concept of ‘belonging’; what it means for international students, as newcomers and temporary residents in their host environment, to feel as if they belong. To address this question, and as a springboard from which further research into the topic can be undertaken, we examined the question of ‘belonging’ within contemporary academic literature. We examined a broad range of literature to determine the key findings, as well as gaps in the implications for theory and practice. Our findings indicate that ‘belonging’ is seldom clearly defined in the scholarly research. We also found that a proactive approach to student integration was the most common thread across the studies examined.","PeriodicalId":46680,"journal":{"name":"Journal of International Students","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135857988","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
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