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Overview on Social Media User Behavior during the COVID-19 Pandemic: From Fear of Missing Out and Social Networking Fatigue to Privacy Concerns COVID-19大流行期间社交媒体用户行为概述:从害怕错过和社交网络疲劳到隐私担忧
Pub Date : 2022-08-01 DOI: 10.2478/subboec-2022-0007
Daniel Mican, Ioana Sorina Andreica Mihuț, Luigia-Gabriela Sterie, Dan-Andrei Sitar-Tǎut
Abstract Social networking sites and social media serve as vital avenues of interaction among people all over the world as well as essential platforms for the distribution of information. Companies, like individuals, embrace social networks as a non-formal way to engage with their customers and suppliers, gather information about their online behavior, and offer personalized content. Both scholars and managers from various organizations looking to increase their competitive edge or market shares have an interest in the impact that social networks have on human behavior. Because of this, the current research seeks to investigate how users perceive a wide range of concepts related to using social networking sites, including fear of missing out (FoMO), social networking fatigue, information and communication overload, ubiquitous connectivity and peer communication, and privacy concerns. The authors also examined users’ intentions to continue using social networking sites despite the COVID-19 outbreak in order to ensure a more thorough understanding of the research topic. The findings aim to provide a better knowledge of how users see interaction on social networks in their daily lives as well as an overview of user perspectives on the terms mentioned above.
社交网站和社交媒体是世界各地人们互动的重要渠道,也是信息传播的重要平台。与个人一样,公司也将社交网络作为一种非正式的方式来与客户和供应商交流,收集他们的在线行为信息,并提供个性化的内容。学者和来自不同组织的管理者都希望增加他们的竞争优势或市场份额,他们对社交网络对人类行为的影响很感兴趣。正因为如此,目前的研究试图调查用户如何看待与使用社交网站相关的一系列概念,包括害怕错过(FoMO)、社交网络疲劳、信息和通信过载、无处不在的连接和同伴通信,以及隐私问题。作者还调查了用户在COVID-19爆发时继续使用社交网站的意图,以确保对研究主题有更深入的了解。调查结果旨在更好地了解用户在日常生活中如何看待社交网络上的互动,并概述用户对上述术语的看法。
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引用次数: 0
Effect of Government Agricultural Expenditure on Economic Growth: Evidence from a Developing Country 政府农业支出对经济增长的影响:来自一个发展中国家的证据
Pub Date : 2022-08-01 DOI: 10.2478/subboec-2022-0006
E. Megbowon, Lerato Mothae, Joseph Rapholo Relebohile
Abstract Fiscal policy has been used by various governments to promote economic growth. The effectiveness of government expenditure on economic growth depends on recipient sector of government expenditure. This study contributes to this research area by investigating the effect of government agricultural expenditure on economic growth in the Kingdom of Lesotho. The government of Lesotho identified the agricultural sector as a productive sector that is central to the achievement the economic growth goal and development plan. Descriptive statistics and inferential econometric techniques (ARDL, DOLS and VEC Granger causality) over time-series data for the period 1982-2019 were utilized in this study. The results suggest that while current level and pattern of government agriculture expenditure cannot stimulate the desired economic growth and prosperity in the country, domestic investment appear to be a stimulant of the desired economic prosperity. Consequently, any economic growth policy or strategy that is premised on government agricultural sector expenditure would fail. Thus study recommends that countries including Lesotho should prioritize sustained increase in domestic investment.
财政政策已被各国政府用来促进经济增长。政府支出对经济增长的有效性取决于政府支出的接收部门。本研究通过调查莱索托王国政府农业支出对经济增长的影响,为这一研究领域做出了贡献。莱索托政府将农业部门确定为实现经济增长目标和发展计划的核心生产部门。本研究利用了1982-2019年时间序列数据的描述性统计和推理计量经济学技术(ARDL、DOLS和VEC格兰杰因果关系)。结果表明,虽然目前政府农业支出的水平和模式不能刺激该国预期的经济增长和繁荣,但国内投资似乎是预期经济繁荣的刺激物。因此,任何以政府农业部门支出为前提的经济增长政策或战略都将失败。因此,研究建议包括莱索托在内的各国应优先考虑持续增加国内投资。
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引用次数: 0
Claims Settlement and Risk Attitudes: Evidence from the Motor Insurance Policyholders 理赔与风险态度:来自汽车保险保单持有人的证据
Pub Date : 2022-08-01 DOI: 10.2478/subboec-2022-0008
S. S. Ajemunigbohun, F. Olowokudejo, I. Adeleke
Abstract Claims, being the heartbeat of the workability of insurance, are the most critical contact influencer between the insuring public and the insurer. It serves as a critical path to truth that shapes the policyholders’ ultimate perceptions of their insurers. Therefore, this study aimed at evaluating the relationships between claims settlement and risk attitudes, with specific reference to motor insurance policyholders in Lagos, Nigeria. The study adopted a cross-sectional survey research design. A survey based questionnaire was applied to 287 motor insurance policyholders. The findings-show that claims settlements are significant in attracting reasonable risk attitudes. The study recommends that motor insurance providers should put in place fascinating claims packages in order to boost the confidence level of the motoring communities. Government should rejuvenate and empower the motor insurance public complaint commission to address issues relating to motor insurance claims of either party in the motor insurance contract. Future research work could direct attention to insurance fraud issues emanating from the insurance claims settlement manual.
摘要理赔是保险可行性的“心跳”,是影响投保人与保险人之间最关键的联系纽带。它是一条通往真相的关键途径,塑造了投保人对保险公司的最终看法。因此,本研究旨在评估理赔与风险态度之间的关系,并具体参考尼日利亚拉各斯的汽车保险保单持有人。本研究采用横断面调查研究设计。采用问卷调查法对287名车险投保人进行问卷调查。研究结果表明,理赔在吸引合理的风险态度方面具有重要作用。该研究建议,汽车保险公司应该推出吸引人的索赔方案,以提高汽车社区的信心水平。政府应恢复和授权汽车保险公众投诉委员会处理与汽车保险合同中任何一方的汽车保险索赔有关的问题。未来的研究工作可以将注意力集中在保险理赔手册所产生的保险欺诈问题上。
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引用次数: 1
On convolution, convex, and starlike mappings 关于卷积,凸和星形映射
Pub Date : 2022-06-08 DOI: 10.24193/subbmath.2022.2.17
M. Chuaqui, B. Osgood
"Let $C$ and $S^*$ stand for the classes of convex and starlike mapping in $D$, and let $cc$, $cs$ denote the closures of the respective convex hulls. We derive characterizations for when the convolution of mappings in $cc$ is convex, as well as when the convolution of mappings in $cs$ is starlike. Several characterizations in terms of convolution are given for convexity within $cc$ and for starlikeness within $cs$. We also obtain a correspondence via convolution between $C$ and $S^*$, as well as correspondences between the subclasses of convex and starlike mappings that have $n$-fold symmetry."
设$C$和$S^*$表示$D$中的凸类和星形映射类,设$cc$, $cs$表示各自凸包的闭包。我们推导了$cc$中映射的卷积是凸的以及$cs$中映射的卷积是星形的刻画。对于$cc$范围内的凸性和$cs$范围内的星形,给出了几个用卷积表示的特征。我们还通过$C$和$S^*$之间的卷积得到了对应关系,以及具有$n$-fold对称的凸映射和星形映射的子类之间的对应关系。
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引用次数: 1
Advanced versions of the inverse function theorem 反函数定理的高级版本
Pub Date : 2022-06-08 DOI: 10.24193/subbmath.2022.2.04
D. Shoikhet
"This short opus is dedicated to the bright memory of the distinguished mathematician Gabriela Kohr and her mathematical heritage. Gabriela Kohr's contribution to analysis of one and several complex variables brought new knowledge into the modern theory as well as new colors to the subject. During our meetings with Gabriela at various conferences she always proposed some interesting and often nonstandard questions related to classical issues as well as new directions. It is worth to be mentioned her excellent book [50] together with Ian Graham on classical and modern problems in Geometric Function Theory in complex spaces (see also, [46], [56], [27], [22], [24], [49] and [48])."
“这部简短的作品是献给杰出的数学家加布里埃拉·科尔和她的数学遗产的美好记忆。Gabriela Kohr对一个和几个复杂变量分析的贡献为现代理论带来了新的知识,也为这一学科带来了新的色彩。在我们与Gabriela在各种会议上的会面中,她总是提出一些与经典问题以及新方向相关的有趣且通常是非标准的问题。值得一提的是,她与Ian Graham合著了一本关于复空间几何函数理论中的经典和现代问题的优秀著作[50](另见[46]、[56]、[27]、[22]、[24]、[49]和[48])。”
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引用次数: 0
Runge pairs of Phi-like domains 类phi域的Runge对
Pub Date : 2022-06-08 DOI: 10.24193/subbmath.2022.2.02
H. Hamada, M. Iancu, G. Kohr
We prove that if $Esubseteq Cn$ is a $Phi$-like domain and $Dsubseteq E$ is a $Phibig|_D$-like domain, then $(D,E)$ is a Runge pair. Certain applications, examples and questions are also provided.
我们证明了如果$Esubseteq Cn$是一个$Phi$类定义域,$Dsubseteq E$是一个$Phibig|_D$类定义域,则$(D,E)$是一个朗格对。还提供了一些应用、示例和问题。
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引用次数: 0
Distortion theorems for homeomorphic Sobolev mappings of integrable p-dilatations 可积p扩张的同胚Sobolev映射的畸变定理
Pub Date : 2022-06-08 DOI: 10.24193/subbmath.2022.2.15
Elena Sergeevna Afanas'eva, A. Golberg, R. Salimov
"We study the distortion features of homeomorphisms of Sobolev class $W^{1,1}_{rm loc}$ admitting integrability for $p$-outer dilatation. We show that such mappings belong to $W^{1,n-1}_{rm loc},$ are differentiable almost everywhere and possess absolute continuity in measure. In addition, such mappings are both ring and lower $Q$-homeomorphisms with appropriate measurable functions $Q.$ This allows us to derive various distortion results like Lipschitz, H""older, logarithmic H""older continuity, etc. We also establish a weak bounded variation property for such class of homeomorphisms."
“我们研究了Sobolev类$W^{1,1}_{rm loc}$承认p$-外膨胀可积的同胚的畸变特征。我们证明了这样的映射属于$W^{1,n-1}_{rm loc},$几乎处处可微,并且在测度上具有绝对连续性。此外,这样的映射是环$Q$和下$Q$-同胚,具有适当的可测函数$Q。这允许我们推导出各种失真结果,如Lipschitz、H old、对数H old连续性等。我们还建立了这类同胚的弱有界变分性质。
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引用次数: 1
Operators of the alfa-Bloch space on the open unit ball of a JB*-triple JB*-三元组的开单位球上的α - bloch空间算子
Pub Date : 2022-06-08 DOI: 10.24193/subbmath.2022.2.08
Tatsuhiro Honda
"Let $B_X$ be a bounded symmetric domain realized as the open unit ball of a JB*-triple $X$ which may be infinite dimensional. In this paper, we characterize the bounded weighted composition operators from the Hardy space $H^{infty}(mathbb{B}_X)$ into the $alpha $-Bloch space $mathcal{B}^alpha (B_X)$ on $mathbb{B}_X$. Later, we show the multiplication operator from $H^{infty}(mathbb{B}_X)$ into $mathcal{B}^alpha (B_X)$ is bounded. Also, we give the operator norm of the bounded multiplication operator."
设$B_X$为一个有界对称域,实现为一个JB*-三重体$X$的开放单位球,它可以是无限维的。本文在$mathbb{B}_X$上刻画了从Hardy空间$H^{infty}(mathbb{B}_X)$到$alpha $ -Bloch空间$mathcal{B}^alpha (B_X)$的有界加权复合算子。稍后,我们将展示从$H^{infty}(mathbb{B}_X)$到$mathcal{B}^alpha (B_X)$的乘法运算符是有界的。同时给出了有界乘法算子的算子范数。
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引用次数: 0
Polynomial estimates for solutions of parametric elliptic equations on complete manifolds 完全流形上参数椭圆方程解的多项式估计
Pub Date : 2022-06-08 DOI: 10.24193/subbmath.2022.2.13
M. Kohr, S. Labrunie, H. Mohsen, V. Nistor
"Let $P : CI(M; E) to CI(M; F)$ be an order $mu$ differential operator with coefficients $a$ and $P_k := P : H^{s_0 + k +mu}(M; E) to H^{s_0 + k}(M; F)$. We prove polynomial norm estimates for the solution $P_0^{-1}f$ of the form $$|P_0^{-1}f|_{H^{s_0 + k + mu}(M; E)} le C sum_{q=0}^{k} , | P_0^{-1} |^{q+1} ,|a |_{W^{|s_0|+k}}^{q} , | f |_{H^{s_0 + k - q}},$$ (thus in higher order Sobolev spaces, which amounts also to a parametric regularity result). The assumptions are that $E, F to M$ are Hermitian vector bundles and that $M$ is a complete manifold satisfying the Fr'echet Finiteness Condition (FFC), which was introduced in (Kohr and Nistor, Annals of Global Analysis and Geometry, 2022). These estimates are useful for uncertainty quantification, since the coefficient $a$ can be regarded as a vector valued random variable. We use these results to prove integrability of the norm $|P_k^{-1}f|$ of the solution of $P_k u = f$ with respect to suitable Gaussian measures."
设$P : CI(M; E) to CI(M; F)$是一个阶$mu$微分算子,其系数为$a$和$P_k := P : H^{s_0 + k +mu}(M; E) to H^{s_0 + k}(M; F)$。我们证明了形式为$$|P_0^{-1}f|_{H^{s_0 + k + mu}(M; E)} le C sum_{q=0}^{k} , | P_0^{-1} |^{q+1} ,|a |_{W^{|s_0|+k}}^{q} , | f |_{H^{s_0 + k - q}},$$的解$P_0^{-1}f$的多项式范数估计(因此在高阶Sobolev空间中,这也相当于参数正则性结果)。假设$E, F to M$是厄米向量束,$M$是满足fr有限条件(FFC)的完整流形,该条件在Kohr和Nistor, Annals of Global Analysis and Geometry, 2022中提出。这些估计对于不确定性量化是有用的,因为系数$a$可以看作是一个有向量值的随机变量。我们用这些结果证明了$P_k u = f$解的范数$|P_k^{-1}f|$对于合适的高斯测度的可积性。
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引用次数: 2
Polynomial convexity properties of closure of domains biholomorphic to balls 球生物全纯域闭包的多项式凸性
Pub Date : 2022-06-08 DOI: 10.24193/subbmath.2022.2.07
C. Joita
"We discuss the connections between the polynomial convexity properties of a domain biholomorphic to ball and its closure."
“我们讨论了球的生物全纯域的多项式凸性与闭包之间的联系。”
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引用次数: 0
期刊
Studia Universitatis BabesBolyai Geologia
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