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Characterization of mucilage from clones of Opuntia and Nopalea prickly pear cactus harvested in different seasons in Brazilian semiarid 巴西半干旱地区不同季节收获的Opuntia和Nopalea刺梨仙人掌无性系粘液特性研究
IF 0.9 4区 农林科学 Q3 Agricultural and Biological Sciences Pub Date : 2021-12-03 DOI: 10.56890/jpacd.v23i.457
Yara Panta de Araújo, Andréa Monteiro Santana Silva Brito, Kelem Silva Fonseca, Jheizon Feitoza do Nascimento Souza, Lady Daiane Costa de Sousa, Thieres George Freire da Silva, Danielle Da Silva Eugênio, Adriano do Nascimento Simões
This study proposes to characterize hydrated and refrigerated mucilage obtained from cladodes of clones of prickly pear cactus harvested during the drizzle and dry seasons in the semiarid of Brazil. Cladodes of Opuntia stricta [Haw.] Haw (Orelha de Elefante Mexicana [OEM] clone) and Nopalea cochenillifera Salm Dyck (IPA Sertânia [IPA] and Miúda [MIU] clones) were harvested at 6 am and extracted mucilage. The main bands in the infrared region were characterized. Physicochemical analyses were performed on day zero and at 12 days. Cladodes harvested in the dry season showed higher mucilage yield and soluble solid, total soluble carbohydrate, and K+, for the three clones. The OEM clone also exhibited significant increases in pH, Na+, and electrical conductivity when harvested in the dry season than in the wet season. In addition, the mucilage extracted from the Opuntia cladodes did not have changes in the carbohydrate, titratable acidity, or total soluble protein levels. The IPA and MIU clones, in turn, were characterized by parameters that remained stable during conservation (phenolic compounds, titratable acidity, K+ and Na+). The spectroscopic profile was similar for all studied clones. The principal component analysis allowed the formation of clusters between seasons and conservation times. It is suggested that the cladodes of the genus Nopalea showed better potential in the manufacture of edible films and coatings. The cladodes of the genus Opuntia, for the use of mucilage as ingredients in foods such as bread, pasta, and others, making them with better functional properties. Therefore, these factors should be considered for the use of mucilage in the industry.
这项研究提出了对从巴西半干旱地区雨季和旱季收获的刺梨仙人掌无性系分支中获得的水合和冷藏粘液进行表征。早上6点收获严格仙人掌[Haw.]Haw(Orelha de Elefante Mexicana[OM]克隆)和胭脂虫Salm Dyck(IPA Sertânia[IPA]和Miúda[MIU]克隆)的枝节,并提取粘液。对红外区的主要波段进行了表征。在第0天和第12天进行理化分析。三个无性系在旱季收获的枝节表现出较高的粘液产量和可溶性固体、总可溶性碳水化合物和K+。当在旱季收获时,OEM克隆的pH、Na+和电导率也比在雨季显著增加。此外,从仙人掌分支中提取的粘液在碳水化合物、可滴定酸度或总可溶性蛋白质水平上没有变化。IPA和MIU克隆的特征依次是在保存过程中保持稳定的参数(酚类化合物、可滴定酸度、K+和Na+)。所有研究克隆的光谱图谱相似。主成分分析允许在季节和保护时间之间形成集群。结果表明,Nopalea属的分支在制备可食用薄膜和涂层方面显示出更好的潜力。仙人掌属的分支,用于将粘液用作面包、意大利面等食物的原料,使其具有更好的功能特性。因此,在行业中使用粘液时应考虑这些因素。
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引用次数: 4
Nitrogen fertilization strategies in the cultivation of Cactus pear in Brazilian Savannah localities 巴西萨凡纳地区仙人掌梨栽培的氮肥策略
IF 0.9 4区 农林科学 Q3 Agricultural and Biological Sciences Pub Date : 2021-12-03 DOI: 10.56890/jpacd.v23i.456
K. S. Nascimento, R. Edvan, Tiago Gutemberg de Jesus Gomes, S. Sousa, S. S. R. Matias, Maykon De Oliveira Ribeiro, Luan Felipe Reis Camboim
This study aimed to evaluate the agronomic parameters and the chemical composition of the cactus pear variety Doce (Nopalea cochenillifera) in different Brazilian savannah localities, subjected to different nitrogen fertilization strategies. A randomized block design was used in this experiment, with a 2× 4 × 2 factorial arrangement with five replications. The factors corresponded to two application frequencies of nitrogen fertilization (30 days and 30/60 days), four nitrogen doses (0, 100, 200, 400 kg ha-1 year-1), and two cactus pear cultivation localities, with Locality 1 corresponding to the municipality of Curimatá and Locality 2 corresponding to the municipality of Riacho Frio. After one year of cultivation, there was no interaction (P>0.05) for frequency × doses × locality, doses × locality, and frequency × doses. The means observed for fresh and dry matter production varied from 57.0 to 68.0±2.9 t ha-1 and from 2.4 to 3.7±0.2 t ha-1, respectively. There was an interaction (P<0.05) between frequency × locality for fresh matter production, dry matter production, water-use efficiency, water accumulation, and carrying capacity. For the chemical composition, there was an interaction (P<0.01) between frequency × dose for the mineral content matter. Fertilization splitting associated with the highest nitrogen application dose resulted in better performance for the cactus pear variety of Doce grown in the Brazilian savannah region.
研究了不同氮肥处理下巴西热带草原不同地区仙人掌梨品种Doce (Nopalea cochenillifera)的农艺参数和化学成分。本试验采用随机区组设计,2× 4 × 2因子排列,5个重复。这些因子对应于2个施氮频率(30天和30/60天)、4个施氮剂量(0、100、200、400 kg hm -1 -1)和2个仙人掌梨种植地点,其中地点1对应于curimat市,地点2对应于Riacho Frio市。培养1年后,频率×剂量×地点、剂量×地点、频率×剂量无交互作用(P>0.05)。鲜物质和干物质产量平均值分别为57.0 ~ 68.0±2.9 t ha-1和2.4 ~ 3.7±0.2 t ha-1。鲜物质产量、干物质产量、水分利用效率、水分积累量和承载能力与频率×地点之间存在交互作用(P<0.05)。在化学成分上,矿物含量与频率与剂量之间存在显著的交互作用(P<0.01)。在巴西萨凡纳地区种植的Doce仙人掌梨品种中,施肥分配与最高施氮量相关的效果较好。
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引用次数: 0
Boundary-Line Approach micro-nutrient optimum concentrations and sufficiency ranges for Opuntia ficus-indica (L.) Miller fruiting 边界线法研究仙人掌密勒结果微营养物质的最佳浓度和适宜范围
IF 0.9 4区 农林科学 Q3 Agricultural and Biological Sciences Pub Date : 2021-11-19 DOI: 10.56890/jpacd.v23i.472
Tania S. Alatriste-Jiménez, F. Blanco-Macías, Catarina Loredo-Osti, Sergio Beltrán-López, J. L. Lara-Mireles, Ricardo David Valdez Cepeda
Optimum concentrations and/or sufficiency ranges of nutrients are useful for correct diagnosis and improvements of nutrient status of cultivated plants. However, Opuntia ficus-indica nutrient storage at plant and cladode levels and best fit plant requirements for fruiting remain practically unknown. Then, this research work aimed to identify the Boundary-Line Approach (B-LA) micronutrient optimum concentrations linked to maximum fruit yield per one-year old fructification cladode and sufficiency ranges at 90% maximum fruit yield for O. ficus-indica variety ‘Rojo Pelón’. Four years (2012 – 2015) data of fruit yield per cladode and micronutrient concentrations (B, Cu, Fe, Mn, and Zn) were used for the elaboration of scatter diagrams (n = 228) and selection of 7 to 10 points to estimate the B-LA quadratic functions. Then, the vertices allowed estimation of the optimum micronutrient concentrations: B = 33.62 mg kg–1, Cu =11.74 mg kg–1, Fe = 108.51 mg kg–1, Mn = 149.33 mg kg–1 and Zn = 414.91 mg kg–1 as linked to estimated maximum yield per cladode; and the sufficiency ranges at 90% maximum fruit yield: B = 24.44 to 46.25 mg kg–1, Cu = 8.68 – 15.87 mg kg–1, Fe = 73.73 – 143.3 mg kg–1, Mn = 114.89 – 183.77 mg kg–1 and Zn = 334.31 – 514.95 mg kg–1. The linked estimated maximum fruit yield per cladode varies from 1999.48 g to 2139.59 g. The proposed B-LA standards can be used to perform reliable micronutrient diagnosis and proper fertilization recommendations.
营养物质的最佳浓度和/或充足范围有助于正确诊断和改善栽培植物的营养状况。然而,榕树在植株和枝级水平上的营养储存以及最适合植物结实需要的情况实际上仍然未知。然后,本研究旨在确定红线方法(B-LA)微量营养素的最佳浓度与每一年生果枝的最大果实产量和最大果实产量90%的充足范围。采用4年(2012 - 2015)单枝果实产量和微量元素(B、Cu、Fe、Mn和Zn)浓度数据绘制散点图(n = 228),选取7 ~ 10个点估算B- la二次函数。然后,利用这些顶点可以估计出最佳微量营养素浓度:B = 33.62 mg kg-1, Cu =11.74 mg kg-1, Fe = 108.51 mg kg-1, Mn = 149.33 mg kg-1和Zn = 414.91 mg kg-1与估算的每枝枝最大产量有关;在90%最高产量时,B = 24.44 ~ 46.25 mg kg-1, Cu = 8.68 ~ 15.87 mg kg-1, Fe = 73.73 ~ 143.3 mg kg-1, Mn = 114.89 ~ 183.77 mg kg-1, Zn = 334.31 ~ 514.95 mg kg-1。每枝的相关估计最大果实产量从1999.48克到2139.59克不等。所提出的B-LA标准可用于进行可靠的微量营养素诊断和适当的施肥建议。
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引用次数: 0
NaCl effect on germination and seedling fresh weight of Stenocereus eruca (Brandegee) A.C. Gibson & K.E. Horak NaCl对黑豆苗萌发和幼苗鲜重的影响
IF 0.9 4区 农林科学 Q3 Agricultural and Biological Sciences Pub Date : 2021-09-26 DOI: 10.56890/jpacd.v23i.482
F. Beltrán-Morales, P. Arce-Amezquita, F. Ruiz-Espinoza, Valeria Beltrán-Valdivia, L. Hernández-Montiel, B. Murillo-Amador
Environmental disruption is particularly determinant for cacti development since they have slow growth and long life cycles. Soil and water salinity are two of the main environmental factors that are considered primordial for the propagation, seedling growth, establishment, and development of coastal cacti. The objective of this study was to evaluate chirinola (Stenocereus eruca) seed germination and seedling fresh weight using NaCl as a saline medium. One hundred seeds divided into five replicates of 20 seeds in a completely randomized design, were treated with five salinity levels and distilled water as control (0, 2, 6, 8, and 10 dS m-1). Seeds were picked up from ripe fruits at a wild Stenocereus eruca population near San Carlos, Baja California Sur, México. Seedling fresh weight was significantly affected by saline stress, with lower fresh weight at the highest doses of 10 dS m-1, and the greatest fresh weight production was obtained with 0 and 2 dS m-1. However, germination percentage was greater at intermediate levels of 2 and 4 dS m-1 and lowest at 10 dS m-1 using NaCl; however, more studies should be conducted including other growth variables, seed viability, and salinity levels.
由于仙人掌生长缓慢,生命周期长,环境破坏对仙人掌的发育尤为重要。土壤和水盐度是海岸仙人掌繁殖、幼苗生长、建立和发育的两个主要环境因素。本研究以NaCl为盐盐培养基,对青苗种子萌发和幼苗鲜重进行了研究。采用完全随机设计,将100粒种子分成5个重复,每重复20粒种子,分别用5种盐度水平(0、2、6、8和10 dS - m-1)蒸馏水处理。在墨西哥南部下加利福尼亚州圣卡洛斯附近的一个野生斑点小龙虾种群中,从成熟的果实中采集了种子。幼苗鲜重受盐胁迫影响显著,最高剂量10 dS - m-1时鲜重较低,0和2 dS - m-1时鲜重产量最大。但在NaCl处理下,2和4 dS - m-1的萌发率最高,10 dS - m-1的萌发率最低;然而,需要进行更多的研究,包括其他生长变量、种子活力和盐度水平。
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引用次数: 1
Compositional Nutrient Diagnosis (CND) Standards for Opuntia ficus-indica (L.) Miller 'Rojo Pelón' Fruiting 仙人掌果实成分营养诊断标准
IF 0.9 4区 农林科学 Q3 Agricultural and Biological Sciences Pub Date : 2021-09-17 DOI: 10.56890/jpacd.v23i.452
Evelyn Hernandez Vidal, Fidel Blanco Macias, F. G. Veliz Deras, Leticia R Gaytán Alemán, Anselmo González Torres, Ricardo David Valdez Cepeda
In this study, the aim was to develop the compositional nutrient diagnosis (CND) norms for Opuntia ficus indica variety 'Rojo Pelón’ fruiting. Statistical analyses involved a dataset of fruit yield and macro-nutrient concentrations of 228 1-year old cladodes from healthy plants. A cutoff yield (1,166.67 g cladode-1) between the low- and high-yield subpopulations was determined after examining six cumulative variance ratio functions related to yield per 1-year old cladode. Means and standard deviations of row-centered log-ratios  of five nutrients (N, P, K, Ca, and Mg) and a filling value Rd, which includes all nutrients not chemically analyzed. Estimated preliminary CND norms (mean ± standard deviation of the row-centered log-ratios) are: = ?1.114 ± 0.219, = ?2.194 ±0.076, = 0.163 ± 0.259, = ?0.708 ± 0.157, = 0.401 ± 0.100, and = 3.452 ± 0.095. These CND standards are associated with the following 1-year old fruiting cladode mean concentrations: N=0.958%, P=0.318%, K=3.507%, Ca=4.228%, and Mg=1.448%. Then, the order of macro-nutrient requirements is as follows: Ca>K>Mg>N>P.
在本研究中,目的是制定仙人掌品种“Rojo Pelón”果实的成分营养诊断(CND)规范。统计分析涉及来自健康植物的228个1年生分支的果实产量和宏观营养浓度数据集。在检查了与每1年生分支节产量相关的6个累积方差比函数后,确定了低产量和高产亚群之间的临界产量(1166.67g分支节-1)。五种营养素(N、P、K、Ca和Mg)的以行为中心的对数比和填充值Rd的平均值和标准偏差,其中包括未经化学分析的所有营养素。估计的初步CND标准(行中心对数比的平均值±标准差)为:=?1.114±0.219,=?2.194±0.076,=0.163±0.259,=?0.708±0.157、=0.401±0.100和=3.452±0.095。这些CND标准与1年生结果枝节的平均浓度有关:N=0.958%,P=0.318%,K=3.507%,Ca=4.228%,Mg=1.484%。
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引用次数: 1
Biomass accumulation of Schlumbergera truncata (Haw.) Moran (Thanksgiving cactus) grown under high pot density 块根斯伦贝谢(Schlumbergera truncata)生物量积累在高盆栽密度下生长的毛兰(感恩节仙人掌)
IF 0.9 4区 农林科学 Q3 Agricultural and Biological Sciences Pub Date : 2021-09-17 DOI: 10.56890/jpacd.v23i.331
M. Leytur, Esteban Gandolfo, D. Carnelos, E. Giardina, A. Di Benedetto
The growth of most pot-grown succulents offered by the ornamental industry is limited mainly by water, nutrients, photoperiod, and temperature manipulation, while other decisions, such as: plant density at pot cropping are often based on the grower’s experience. In the present study, to optimize the biomass accumulation of Schlumbergera truncata under high pot density, we performed an experimental design that included different numbers of initials phylloclades and spraying or not with the synthetic cytokinin 6-benzylaminopurine (BAP). The highest biomass accumulation on a fresh weight basis and highest stem area expansion were recorded in pots with five initial phylloclades and BAP-sprayed plants. The decrease in individual biomass accumulation and the expansion of steam area were related to an increase in pot density. Since shading effect can be discard, responses to photo-assimilate uptake and distribution more associated with mechanical constraints on pot roots rather than with a competition between individual roots. Our results suggest that, when Schlumbergera truncata is grown in pots, the number of initial phylloclades may be higher than the usually recommended number per pot.
观赏行业提供的大多数盆栽多肉植物的生长主要受水、营养、光周期和温度控制的限制,而其他决定,如盆栽种植的植物密度通常基于种植者的经验。为优化斯伦贝热草(Schlumbergera truncata)在高盆栽密度条件下的生物量积累,采用不同根叶首叶数和不喷施合成细胞分裂素6-苄基氨基嘌呤(BAP)的实验设计。以鲜重为基础的生物量积累和茎面积扩张最高的是5个初始叶门和施用bap的盆栽。个体生物量积累的减少和蒸汽面积的扩大与锅密度的增加有关。由于遮阳效应可以被抛弃,对光同化吸收和分配的响应更多地与盆栽根的机械约束有关,而不是与单个根之间的竞争有关。我们的结果表明,当斯伦贝谢在盆中生长时,初始层枝的数量可能高于通常推荐的每盆数量。
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引用次数: 0
THE RELATIONSHIP BETWEEN THE NUMBER OF TOURISTS ARRIVED IN ROMANIA'S DEVELOPMENT REGIONS AND THE GROSS DOMESTIC PRODUCT 到达罗马尼亚发展区域的游客数量与国内生产总值之间的关系
IF 0.9 4区 农林科学 Q3 Agricultural and Biological Sciences Pub Date : 2021-08-10 DOI: 10.24818/cts/3/2021/1.02
Mirea Cosmin Nicolae, Sârbu Alexandra Maria, Ionescu Andra Maria
At national level, the contribution of tourism to the formation of the Gross Domestic Product is quite significant, considering the year 2019, when the contribution of tourism was 6.1% (World Travel & Tourism Council, 2021). Thus, the connection between tourism and Gross Domestic Product is indisputable. The purpose of this study is to find out the influence of the number of tourists arriving in the development regions of Romania on the Gross Domestic Product. The regression method was applied for data processing, using the statistical program EViews. The highest increase in the Gross Domestic Product, depending on the increase in the number of tourists, is registered in the South-Muntenia Development Region, and the smallest increase is registered in the Bucharest-Ilfov Development Region. The results show that a large number of tourists does not necessarily mean generating a considerable increase in Gross Domestic Product.
在国家层面,旅游业对国内生产总值的贡献是相当显著的,考虑到2019年,旅游业的贡献为6.1%(世界旅游和旅游理事会,2021年)。因此,旅游业与国内生产总值之间的联系是无可争辩的。本研究的目的是找出到达罗马尼亚发展地区的游客数量对国内生产总值的影响。采用回归法对数据进行处理,使用统计程序EViews。根据游客数量的增加,国内生产总值的增幅最大的是南黑山开发区,增幅最小的是布加勒斯特-伊尔福夫开发区。结果表明,大量的游客并不一定意味着国内生产总值的大幅增长。
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引用次数: 0
DEVELOPMENT OF WINE SECTOR – A WAY TO SUSTAIN WINE TOURISM IN ROMANIA 发展葡萄酒行业——罗马尼亚葡萄酒旅游的一种方式
IF 0.9 4区 农林科学 Q3 Agricultural and Biological Sciences Pub Date : 2021-08-10 DOI: 10.24818/cts/3/2021/1.05
Gurgu Andra-Elena
This article aims to identify the influence of wine sector toward wine tourism in Romania. The article describes both wine sector and wine tourism. The study attempts to demonstrate the correlation between these two sectors pointing out that wine tourism in Romania is still in a developing phase. Therefore, understanding the link between these two merging industries and how they influence each other stands as the goal of the paper. Overall, the results suggest that there is a significant wine-growing potential with a conclusive outcome in wine tourism sector.
本文旨在确定葡萄酒行业对罗马尼亚葡萄酒旅游的影响。这篇文章描述了葡萄酒行业和葡萄酒旅游。该研究试图证明这两个部门之间的相关性,指出罗马尼亚的葡萄酒旅游仍处于发展阶段。因此,了解这两个合并产业之间的联系以及它们如何相互影响是本文的目标。总体而言,结果表明,有一个显著的葡萄酒增长潜力与结论性的结果,在葡萄酒旅游部门。
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引用次数: 1
SELF-EFFICACY, ORGANIZATIONAL COMMITMENT, AND EMPLOYEE PERFORMANCE – FROM PUBLIC OFFICE 自我效能感、组织承诺和员工绩效——来自公职
IF 0.9 4区 农林科学 Q3 Agricultural and Biological Sciences Pub Date : 2021-08-10 DOI: 10.24818/cts/3/2021/1.01
Siti Maria, Digra Lestari, Eny Rochaida, D. Darma, Heni Rahayu Rahmawati
Employee performance is important because it is the foundation and direction of every organization. In this paper, we attempt to investigate the effect of self-efficacy on organizational commitment and employee performance, then the effect of organizational commitment on employee performance. The objectivity of the study refers to 100 informant units obtained through a survey of employees in the Tourism and Culture Office of East Kalimantan Province, Indonesia. The sampling approach uses a saturated sample method with Structural Equation Medelling-Partial Least Square (SEM-PLS). These findings indicate that self-efficacy has a significant effect on organizational commitment and employee performance. Similar to the previous results, organizational commitment has a significant effect on employee performance. With these findings, it can contribute to the role of a leader who must have optimal leadership characteristics, so that self-efficacy, organizational commitment, and employee performance continue to be optimal as expected.
员工绩效很重要,因为它是每个组织的基础和方向。本文首先探讨自我效能感对组织承诺和员工绩效的影响,然后探讨组织承诺对员工绩效的影响。研究的客观性是指通过对印度尼西亚东加里曼丹省旅游和文化办公室的员工进行调查获得的100个信息单位。采样方法采用结构方程-偏最小二乘(SEM-PLS)的饱和采样方法。研究结果表明,自我效能感对组织承诺和员工绩效有显著影响。与前面的结果相似,组织承诺对员工绩效有显著的影响。根据这些发现,它可以有助于领导者必须具有最佳领导特征的角色,从而使自我效能感,组织承诺和员工绩效继续达到预期的最佳状态。
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引用次数: 6
THE INFLUENCE OF THE COVID-19 PANDEMIC ON THE ENTREPRENEURIAL INTENTION OF YOUNG PEOPLE 新冠肺炎疫情对青年创业意向的影响
IF 0.9 4区 农林科学 Q3 Agricultural and Biological Sciences Pub Date : 2021-08-10 DOI: 10.24818/cts/3/2021/1.06
Badea Ana-Maria
COVID-19 is an extremely infectious disease and a danger to human health, causing deaths worldwide. The aim of the paper was to identify how the crisis caused by the COVID-19 pandemic negatively influenced the entrepreneurial intentions of young people. The study starts from the hypotheses that entrepreneurial intentions among young people have decreased due to the pandemic and that the existence of entrepreneurs in the family or circle of friends can positively influence young people. A review of the literature has created an overview of the importance of entrepreneurship in a country's economy and how the pandemic affected the entrepreneurs. To collect data, a questionnaire was distributed among young people between 16 and 35 years old. Following the evaluation of the respondents' answers, the two hypotheses were validated. It was found that young people who already have their own business also have relatives or friends who are entrepreneurs, who influenced them to follow the path of entrepreneurship. The pandemic has negatively affected young people, as before March 2020, 35.6% of young people wanted to start their own business, now 24.4% are undecided due to restrictions and uncertainty, and 1.6% gave up the idea setting up a business. Thus, we can conclude that the pandemic has caused disruptions to the economy and entrepreneurship, raising many challenges for current and future businesses.
COVID-19是一种极具传染性的疾病,对人类健康构成威胁,在世界范围内造成死亡。本文的目的是确定COVID-19大流行造成的危机如何对年轻人的创业意图产生负面影响。该研究从假设开始,即由于疫情,年轻人的创业意愿下降,家庭或朋友圈中企业家的存在可以对年轻人产生积极影响。通过对文献的回顾,可以概述企业家精神在一国经济中的重要性,以及疫情对企业家的影响。为了收集数据,在16至35岁的年轻人中分发了一份调查问卷。在对受访者的回答进行评估后,验证了这两个假设。研究发现,已经拥有自己的企业的年轻人也有亲戚或朋友是企业家,他们影响了他们走上创业之路。疫情对年轻人产生了负面影响,在2020年3月之前,35.6%的年轻人想要创业,现在24.4%的年轻人由于限制和不确定性而犹豫不决,1.6%的人放弃了创业的想法。因此,我们可以得出结论,大流行对经济和创业造成了破坏,给当前和未来的企业带来了许多挑战。
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引用次数: 1
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Journal of the Professional Association for Cactus Development
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