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Liver toxicity of raw and processed Cycas circinalis (Madu) seed flour: an animal study 生的和加工的苏铁籽粉的肝毒性:一项动物研究
Pub Date : 2021-05-30 DOI: 10.4038/ijms.v8i1.129
S. Senadheera, R. W. K. M. Senevirathna, S. Ekanayake
cycasins. This study conducted to observe the liver toxicity, if any, of made incorporating cycas seed flour as data on effects of processing on liver toxicity available. The study was conducted with pittu and roti made by incorporating cycas seed flour obtained from soaked and dried seeds. Toxicity of pittu, roti and raw flour were observed by assessing the behavior of animals, liver enzymes and histopathological changes in liver sections of the mice fed diets made by incorporating pittu, roti and raw flour for 28 days. Significant elevations in liver enzymes (p<0.05) (reference AST 195  38, ALT 21.2  1.1 IU/L, raw flour AST 345  71, 50.8  3.1 IU/L; pittu AST 406  68, 39.2  1.1 IU/L; roti AST  31, 28.8  1.5 IU/L) were observed in rats fed cycas flour incorporated diets. Fatty inclusions, few scattered lymphocytes and mild perpendicular inflammations were observed in the liver sections of all test groups. However, the elevation of liver enzymes and histopathological changes significantly in mice fed with roti incorporated diet when compared to other test groups. Hence, the present study suggests that dry heat processing is detoxifying hepato-toxins in seeds to a certain extent. However, the present study confirms that continuous feeding of raw or processed cycas flour containing food could lead to liver parenchymal cell damage.
苏铁素。本研究旨在观察苏铁籽粉的肝毒性(如果有的话),并以此作为研究加工对肝毒性影响的数据。以苏铁种子为原料,将苏铁种子浸渍和干燥后的苏铁种子粉混合制成pittu和roti。通过观察动物行为、肝酶和小鼠肝脏切片组织病理学变化,观察pittu、roti和生粉对小鼠的毒性作用。肝酶显著升高(p<0.05)(参考AST 19538,ALT 21.21.1 IU/L,原料面粉AST 34571,50.83.1 IU/L;pittu AST 40668,39.21.1 IU/L;在苏铁粉添加日粮中观察到roti AST31、28.81.5 IU/L的含量。各试验组肝脏切片均可见脂肪包体、少量淋巴细胞散在及轻度垂直炎症。然而,与其他试验组相比,添加烤饼的小鼠肝酶升高和组织病理学变化显著。因此,本研究表明干热加工在一定程度上解毒了种子中的肝毒素。然而,目前的研究证实,持续喂食含有食物的生的或加工的苏铁粉可能导致肝实质细胞损伤。
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引用次数: 0
Effect of different preservation techniques on chemical, microbial and functional properties of Palmyrah dried seed shoot flour 不同保存工艺对棕榈籽干芽粉化学、微生物及功能特性的影响
Pub Date : 2021-05-30 DOI: 10.4038/ijms.v8i1.133
P. Ratheesan, N. Sobini, S. Vinujan, S. Srivijeindran, A. Alakolanga, T. Dharmarathna, V. S. Samsankapil
Palmyrah (Borassus flabellifer) seed shoot flour has many nutritional values and it contains a high amount of starch. It is widely utilized in the preparation of starch based food products. Since these are seasonal products, most of them are spoiled and wasted due to microbial and insect damage. The aim of this research was to increase the shelf life by using suitable preservation methods. Vacuum packaging, roasting (180 0 C, 10 min), fumigation using phosphine gas (1 gm -3 , 4 days) and addition of preservative (Sodium Metabisulphite, 200ppm) were the treatments done to increase the shelf life of dried seed shoot flour. Microbial stability was compared through variations in Total Plate Count and Yeasts and Molds count for control and all treated seed shoot flour for one year. Chemical (Moisture, Ash and Starch) and functional properties (Water absorption capacity, Bulk density, Foaming capacity, Foam stability and Swelling power) were tested to assess the effect of different treatments. Among the treatments, vacuum packaging contains the less Total Plate Count (6.83±0.01 log CFU/g) and Yeasts and Molds count (3.0±0.1 log CFU/g) after the storage period of one year compared to other treatments. Bulk density was affected by all the treatments applied and compared with control. Fumigation had a significant effect on moisture content (10.76±0.45 %) and Roasting affected the water absorption capacity (219.21 ± 0.42 %) and swelling power (3.82 ± 0.02) of flour positively and forming capacity (54.12 ± 0.04 %) negatively. Based on the results observed vacuum packaging was identified as the best method for preservation of Palmyrah dried seed shoot flour.
Palmyrah (Borassus flabellifer)种子芽粉具有许多营养价值,它含有大量的淀粉。广泛应用于淀粉基食品的制备。由于这些是季节性产品,由于微生物和昆虫的破坏,大多数都变质和浪费了。本研究的目的是通过适当的保存方法来延长其保质期。通过真空包装、烤制(180℃,10 min)、磷化氢气熏蒸(1 gm -3, 4 d)和添加防腐剂(200ppm,焦亚硫酸钠)延长干苗粉的保质期。通过对照和所有处理过的种芽粉1年的菌落总数、酵母菌数和霉菌数的变化来比较微生物稳定性。通过化学性能(水分、灰分和淀粉)和功能性能(吸水能力、体积密度、起泡能力、泡沫稳定性和膨胀力)的测试来评价不同处理的效果。真空包装处理1年后菌落总数(6.83±0.01 log CFU/g)和酵母菌总数(3.0±0.1 log CFU/g)均低于其他处理。不同处理对容重的影响,并与对照进行比较。熏蒸对面粉含水率有显著影响(10.76±0.45%),烘烤对面粉吸水率(219.21±0.42%)和膨化率(3.82±0.02)有显著影响,对面粉成形率(54.12±0.04%)有显著影响。在此基础上,确定了真空包装是Palmyrah籽芽粉的最佳保存方法。
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引用次数: 0
Legionella pneumonia as a cause of atypical pneumonia in a tertiary care hospital in Sri Lanka 军团菌肺炎是斯里兰卡三级保健医院非典型肺炎的一个病因
Pub Date : 2021-05-30 DOI: 10.31357/IJMS.V8I1.4920
J. Kottahachchi, D. Dissanayake, D. Athukorala, S. P. Kottahachchi, S. Fernando, M. Weerasekara, C. Gunasekara, M. J. Nalaka, D. Sudusinghe, C. Marasinghe
Atypical pneumonia which contributes to an important proportion of community acquired pneumonia and Legionella pneumophila is a noteworthy pathogen worldwide. Legionnaires’ disease, the severe form of pneumonia is predominantly caused by Legionella pneumophila serogroup 1. This study was conducted to determine the presence of Legionella pneumophila as a pathogen and the associated risk factors among the patients admitted with atypical pneumonia to a tertiary care hospital in Sri Lanka. Seventy-five adult patients diagnosed with atypical pneumonia attending professorial medical unit of Colombo South Teaching Hospital, Sri Lanka were enrolled. Risk factors related to the disease was assessed by an interviewer administered questionnaire. Expectorated sputum was processed on supplemented buffered charcoal yeast extract medium and urine specimens were tested for Legionella pneumophila serogroup 1 antigen. Fifty-six percent of the patients were males and 91% were residing in urban areas. Smoking was admitted by 32% and that of alcohol consumption was in 25%. Composting and potting, distant travelling and frequent use of air conditioning was reported in 28%, 37% and 4% respectively. Majority of participants were not exposed to cooling towers, humidifiers or plumbing and not visited high risk areas. Among the study group, 21% had diabetes, 24% had ischaemic heart disease and 36% had chronic lung diseases. None of the sputum samples grew Legionella pneumophila, and all urine samples were negative for the antigen of Legionella pneumophila serogroup 1. It is concluded that, in this population of community acquired atypical pneumonia, Legionella pneumophila was not identified as a causative agent.
非典型肺炎是世界范围内值得关注的一种病原体,是社区获得性肺炎和嗜肺军团菌的重要组成部分。军团病是一种严重的肺炎,主要由嗜肺军团菌血清组1引起。本研究旨在确定斯里兰卡一家三级医院收治的非典型肺炎患者中嗜肺军团菌作为病原体的存在及其相关危险因素。在斯里兰卡科伦坡南教学医院专业医疗单位就诊的75名确诊为非典型肺炎的成年患者被纳入研究。与疾病相关的危险因素通过采访者管理的问卷进行评估。痰液在添加缓冲炭酵母提取液培养基上处理,尿液标本检测嗜肺军团菌血清1组抗原。56%的患者为男性,91%的患者居住在城市地区。32%的人承认吸烟,25%的人承认饮酒。堆肥和盆栽、长途旅行和频繁使用空调分别占28%、37%和4%。大多数参与者没有接触冷却塔、加湿器或管道,也没有去过高风险地区。在研究组中,21%患有糖尿病,24%患有缺血性心脏病,36%患有慢性肺病。痰标本无嗜肺军团菌生长,尿标本嗜肺军团菌血清1组抗原均为阴性。结论是,在该社区获得性非典型肺炎人群中,嗜肺军团菌未被确定为病原体。
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引用次数: 1
Historicizing anglophone theater in postcolonial South Africa: select political and protest plays 后殖民时期南非英语剧院的历史化:精选政治和抗议戏剧
Pub Date : 2021-05-30 DOI: 10.4038/ijms.v8i1.134
Chitra Jayathilake / Chitra Jayathilaka
This article explores the ways in which Anglophone dramas in postcolonial South Africa became a tool of political and protest theater. It examines the emergence of Anglophone theater, explores its development into political praxis and discusses the performance or non-performance contexts, as well as their specific socio-political milieux, with reference to the select plays from South Africa. These plays are compelling as they characterize specific tensions internal to South Africa, while alluding to colonial legacies and global coercion. Historicization is a crucial phase in this study and the key part of the methodology that establishes their political and aesthetic significance, both at the time of performance and after. The central argument of the article is that Anglophone theater of South Africa is subjected to – and bound by – socio-political and cultural dynamics of the country; the emergence of political and protest theater is often caused by subtle or overt subterfuges of biopolitics exercised internally within this postcolonial territory.
本文探讨后殖民时期的南非,以英语为母语的戏剧如何成为政治和抗议戏剧的工具。它考察了英语国家戏剧的出现,探讨了其发展到政治实践,并讨论了表演或非表演的背景,以及他们具体的社会政治环境,参考来自南非的精选戏剧。这些戏剧引人注目,因为它们描绘了南非内部的特定紧张局势,同时暗指殖民遗产和全球胁迫。历史化是本研究的一个关键阶段,也是方法论的关键部分,它确立了它们在表演时和表演后的政治和美学意义。这篇文章的中心论点是,南非的英语剧院受制于国家的社会政治和文化动态,并受到其约束;政治和抗议剧场的出现往往是由在这个后殖民领土内部行使的生物政治的微妙或公开的诡计引起的。
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引用次数: 0
Physical and nutritional characteristics of less common traditional rice (Oryza sativa L.) varieties of Sri Lanka 斯里兰卡不常见的传统水稻(Oryza sativa L.)品种的物理和营养特性
Pub Date : 2020-12-31 DOI: 10.4038/ijms.v7i2.127
K. Bhagya, S. Ekanayake
and of determined the physical and nutritional properties of some less common rice varieties namely Pokkali, Murugakayan, Rathdel, Madathawalu, Kuruluthuda, Pachchaperumal, Suduheenati, Suwadel and Kaluheenati without subjecting to processing treatments such as polishing and parboiling. Length, width, thickness, diameter, volume and length/ width (shape) ratios as physical properties and moisture content, ash, crude fat and protein, total and digestible carbohydrate contents, resistant starch and insoluble soluble and total dietary fiber contents were determined according to standard methods. Length, width, and thickness of grains varied between 4.0-6.4 mm, 2.2-2.9 mm and 1.5-2.2 mm respectively. Diameter, volume and length-width ratio were between 2.4-3.3 mm, 3.8-10.5 mm3 and 1.7-2.6 respectively. Accordingly, the varieties were categorized as bold or medium. Moisture contents of varieties were between 5.4-8.3% and ash contents less than 2% (DM). Low crude fat (4.2-4.9% DM) and high protein (5.5-9.2% DM) contents were observed. Digestible carbohydrate and total carbohydrate contents ranged between 77.5-84.6% (DM) and 79.1-85.2% (DM) respectively. Resistant starch content varied between 0.4- 3.2%. Corresponding insoluble, soluble and total dietary fiber contents ranged between 2.8-4.9%, 1.5-2.7% and 4.3-6.5% (DM). According to the data obtained the studied traditional rice varietiesare good sources of digestible carbohydrate, protein with low fat and moisture.
并确定了一些不太常见的水稻品种,即Pokkali, Murugakayan, Rathdel, Madathawalu, Kuruluthuda, Pachchaperumal, Suduheenati, Suwadel和Kaluheenati的物理和营养特性,而无需进行抛光和煮熟等加工处理。按标准方法测定其物性、水分含量、灰分、粗脂肪和粗蛋白质、总碳水化合物和可消化碳水化合物含量、抗性淀粉和不溶性可溶性纤维和总膳食纤维含量等的长度、宽度、厚度、直径、体积和长宽(形状)比。晶粒长度为4.0 ~ 6.4 mm,宽度为2.2 ~ 2.9 mm,厚度为1.5 ~ 2.2 mm。直径为2.4 ~ 3.3 mm,体积为3.8 ~ 10.5 mm,长宽比为1.7 ~ 2.6 mm。因此,这些品种被分为粗壮型和中等型。各品种水分含量在5.4 ~ 8.3%之间,灰分含量小于2% (DM)。粗脂肪含量低(4.2 ~ 4.9% DM),蛋白质含量高(5.5 ~ 9.2% DM)。可消化碳水化合物和总碳水化合物含量分别为77.5 ~ 84.6% (DM)和79.1 ~ 85.2% (DM)。抗性淀粉含量在0.4 ~ 3.2%之间。相应的不溶性、可溶性和总膳食纤维含量分别为2.8 ~ 4.9%、1.5 ~ 2.7%和4.3 ~ 6.5% (DM)。根据所获得的数据,所研究的传统水稻品种是可消化的碳水化合物、低脂肪和低水分的蛋白质的良好来源。
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引用次数: 0
The syntax of the Vedda language 吠陀语的语法
Pub Date : 2020-12-31 DOI: 10.31357/IJMS.V7I2.4797
M. Ananda
This paper is an inquiry into the syntax of the Vedda language from a generative syntactic perspective conducted in accordance with Noam Chomsky’s (1980-) Principles and Parameters (PP that despite the availability of many scrambling opportunities, the Vedda language remains configurational; that it does not allow certain word orders present in the Sinhala language; that it is strongly Head final as the Sinhala language; that it does not have an articulated CP or TP periphery; that their Neg marker serves a number of modal functions in addition to Neg marking; that both Focus and Wh are located in the Focus Head; and that on the whole, the syntax of the Vedda language largely aligns with the syntax of the Sinhala language.
本文根据诺姆·乔姆斯基(1980-)的原则和参数(PP),从生成句法的角度对韦达语的语法进行了调查,该原则和参数(PP)认为,尽管存在许多争夺机会,韦达语仍然是构型的;它不允许僧伽罗语中存在的某些词序;它作为僧伽罗语是强有力的头尾语;没有明确的CP或TP周边;除了负标记,他们的负标记还有许多模态功能;Focus和Wh都位于Focus头;总的来说,吠陀语的语法与僧伽罗语的语法基本一致。
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引用次数: 0
Assessing the attitude of Mallams towards integration of Almajiris into formal education system in Katsina State, Nigeria 评估尼日利亚卡齐纳州马拉姆人对将马拉姆人纳入正规教育体系的态度
Pub Date : 2020-12-31 DOI: 10.31357/IJMS.V7I2.4825
Adekunle Thomas Olutola, R. Olatoye, G. Adamu
This study assessed the attitude of Mallams (Arabic teachers of out-of –school children) towards integration of Almajiris (Out-of-school children in non-formal Arabic schools) into formal education system in Katsina State, Nigeria. In this study, the researchers adopted descriptive survey research design. Sixty-five (65) Mallams were purposively selected from twelve (12) Almajiris schools in Katsina State. A researcher-designed questionnaires titled: ‘‘Attitude of Mallams towards Almajiris Education Questionnaire (AMTAEQ)’’and ‘‘Motivational Strategies for Integration of Almajiris into Formal Education System (MSIAFES)’’ with test-retest reliability coefficients of 0.91 and 0.89 respectively were used to collect data for the study. Frequencies and percentages were used to analyze research questions 1 to 3 while Chi-square statistical tool was used to analyze research questions 4 and 5 in the study. Findings revealed that: The Mallam-Almajiris ratio is approximately 1: 26 and, many Mallams (75.6%), are aware that the Federal Government has built formal Almajiris schools in Northern Nigeria. Most Mallams (81.5%) indicated that Almajiris learn other skills apart from Arabic studies like Trading, Carpentry and Tailoring. Moreover, there is significant influence in the attitude of Mallams (Almajiris teachers), motivational strategies and successful integration of Almajiris into the formal education system in Katsina State. Based on these findings, it is recommended that government should provide adequate motivational strategies especially free education for successful integration of the Almajiris into the formal education system in Katsina State. In addition, Orientation programmes that will change the attitude of Mallams should be given so as to encourage Almajiris to go to formal schools.
本研究评估了尼日利亚卡齐纳州Mallams(失学儿童的阿拉伯语教师)对Almajiris(非正规阿拉伯学校失学儿童)融入正规教育体系的态度。在本研究中,研究者采用描述性调查研究设计。有目的地从卡齐纳州的12所阿尔马吉里斯学校中选出65名马拉姆人。本研究采用由研究者设计的问卷《马拉马拉人对阿尔马吉里斯教育态度问卷》(AMTAEQ)和《马拉马拉人融入正规教育系统的动机策略问卷》(MSIAFES)进行数据收集,重测信度系数分别为0.91和0.89。研究问题1 - 3采用频率和百分比分析,研究问题4 - 5采用卡方统计工具分析。调查结果显示:马拉姆-阿尔马吉里斯人的比例约为1:26,许多马拉姆人(75.6%)知道联邦政府在尼日利亚北部建立了正规的阿尔马吉里斯学校。大多数马拉姆人(81.5%)表示,除了阿拉伯语学习,马拉姆人还学习其他技能,如贸易、木工和裁缝。此外,在卡齐纳州,马拉姆(阿尔马吉里斯教师)的态度、激励策略和阿尔马吉里斯成功融入正规教育体系方面也有重大影响。根据这些调查结果,建议政府应提供适当的激励战略,特别是免费教育,使阿尔马吉里人成功地融入卡齐纳州的正规教育系统。此外,应举办改变马拉姆人态度的迎新方案,以鼓励马拉姆人到正规学校上学。
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引用次数: 0
The impact of familial influence on dancing: a study among undergraduates who have selected dance as a subject in public universities in Sri Lanka 家庭影响对舞蹈的影响:斯里兰卡公立大学舞蹈专业本科生的研究
Pub Date : 2020-12-31 DOI: 10.4038/ijms.v7i2.125
W. Ranaweera, D. Manel
Sri Lanka is rich in highly stylized traditional dance forms. During the early days, traditional dance forms of Sri Lanka had been sustained and preserved by special groups of families. Sri Lankan traditional dance forms were mostly transmitted from one generation to the other by their descendants. There were many well-known lineages related to the field of dance. The objective of this study was designed based on this cultural background and this paper examines the impact of familial influence on learning dancing. It is difficult to find researches or studies carried out to reveal the relationship between family influence and dance in the Sri Lankan context. Since the field of dance is spread broadly in present days, this research focused only on finding the impact of familial influence for selecting dance as a subject among the students who have selected dance for their higher studies. A total of 400 undergraduates have been engaged as the sample from three different state universities. In order to collect data in achieving the objectives of the study the mixed methodology was used: both quantitative and qualitative data have been collected to understand the familial influences on selecting dance. Interviewer administered questionnaire surveys were done. The findings indicate that family background is not very influential on learning dancing among the undergraduates and only 20.75 percent of the sample inherited dance from their families. Among them, the highest numbers of undergraduates belong to the first generation of their lineage. 95.75 percent of the sample believes that familial influence is not so important in learning dancing at different levels and the most demanding need of familial influence is only to gain recognition in the field of dance.
斯里兰卡有丰富的高度风格化的传统舞蹈形式。在早期,斯里兰卡的传统舞蹈形式是由特殊的家庭群体维持和保存的。斯里兰卡的传统舞蹈形式大多是由他们的后代代代相传的。有许多著名的血统与舞蹈领域有关。本研究的目的就是基于这一文化背景而设计的,本文考察了家庭影响对舞蹈学习的影响。很难找到在斯里兰卡背景下揭示家庭影响与舞蹈之间关系的研究或研究。由于舞蹈领域在当今传播广泛,本研究只关注家庭影响对选择舞蹈作为高等学习科目的学生选择舞蹈作为学科的影响。本研究共选取了来自三所不同州立大学的400名本科生作为样本。为了收集数据,以实现研究的目标,混合的方法被使用:定量和定性的数据已经收集,以了解家庭对选择舞蹈的影响。访谈者进行问卷调查。研究结果表明,家庭背景对大学生舞蹈学习的影响不大,只有20.75%的样本从家庭遗传舞蹈。其中,大学生人数最多的是他们家族的第一代。95.75%的样本认为家庭影响在不同层次的舞蹈学习中并不那么重要,家庭影响最迫切的需求只是在舞蹈领域获得认可。
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引用次数: 0
Assisting professional development of subordinate engineers; evidence from owner/manager entrepreneurial engineers in Sri Lanka 协助下属工程师专业发展;来自斯里兰卡的业主/经理创业工程师的证据
Pub Date : 2020-08-24 DOI: 10.4038/ijms.v8i2.142
D. Wijesinghe, V. Jayawardane, S. Dasanayaka
entrepreneurial engineers in Sri Lanka. This study's findings can be considered as guidance for emerging and future entrepreneurial engineers to create a mutually beneficial sustainable work environment for entrepreneurial engineers and their employees while achieving business success.
斯里兰卡的创业工程师。本研究的研究结果可以被认为是对新兴和未来的创业工程师的指导,为创业工程师和他们的员工创造一个互惠互利的可持续的工作环境,同时取得商业成功。
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引用次数: 0
Factors affecting the entrepreneurial intention of bachelor of arts undergraduates (with special reference to Faculty of Humanities and Social Sciences, University of Sri Jayewardenepura) 影响文学学士本科生创业意向的因素(特别以斯里贾耶瓦尔德纳普拉大学人文社会科学学院为例)
Pub Date : 2020-08-24 DOI: 10.4038/ijms.v8i2.145
N.A.N.J. Maduwansha
Entrepreneurship can be identified as a main pillar in the global economy. It creates jobs which result in the reduction of unemployment, economic growth and social development. It can be observed that the Sri Lankan government pays its attention to develop the mindset of the people to become entrepreneurs. The entrepreneurial intention of undergraduates has become vital in the current society because they have the utmost potential in becoming future entrepreneurs. Recent statistics depicts an increase in the unemployment of Bachelor of Arts graduates over the years. Therefore, it can be identified as a timely need to promote the concept of entrepreneurship among undergraduates. Hence, the main objective of the study is to identify the factors affecting the entrepreneurial intention of undergraduates with special reference to Bachelor of Arts undergraduates studying in the Faculty of Humanities and Social Sciences, University of Sri Jayewardenepura. The theory of planned behavior has been used in order to identify the factors affecting the entrepreneurial intention of the undergraduates. A total of 400 undergraduates, irrespective of their academic year of study, have participated in the study. A structured questionnaire was distributed to collect primary data. The structural equational modelling was used to test the theory of planned behavior. It was found that only the attitude towards behavior and the perceived behavioral control highly affected the entrepreneurial intention whereas the subjective norm was insignificant. This study revealed the important factors to take note of, to improve the entrepreneurial intention of Bachelor of Arts undergraduates in the Sri Lankan context.
企业家精神可以说是全球经济的一个主要支柱。它创造就业机会,从而减少失业,促进经济增长和社会发展。可以看出,斯里兰卡政府非常重视培养人民成为企业家的心态。大学生的创业意向在当今社会变得至关重要,因为他们最有可能成为未来的企业家。最近的统计数据显示,近年来文学学士毕业生的失业率有所上升。因此,可以认为,在大学生中推广创业理念是一个及时的需要。因此,本研究的主要目的是确定影响大学生创业意愿的因素,并特别以斯里贾耶瓦德纳普拉大学人文社会科学学院的文学学士本科生为研究对象。运用计划行为理论对大学生创业意向的影响因素进行了分析。共有400名本科生参加了这项研究,无论他们的学年如何。分发结构化问卷以收集原始数据。利用结构方程模型对计划行为理论进行了验证。研究发现,只有行为态度和行为控制感知对创业意向有显著影响,主观规范对创业意向的影响不显著。本研究揭示了在斯里兰卡背景下,提高文学学士本科生创业意愿需要注意的重要因素。
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引用次数: 0
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International journal of current multidisciplinary studies
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