The Impact of Short Selling Disclosure Regulatory Constraint on the Lending Market and Stock Ownership

We examine the impact of the short sell disclosure(SSD)regime on the stock lending market and investor behaviors,employing a staggered difference-indifference(DiD)methodology.Our research reveals that the introduction of the disclosure regime enhances market transparency,resulting in a diminished appeal of stock ownership in the lending market for active investors.This shift is accompanied by a reduction in information leakage risks and longer loan durations.Specifically,our analysis reveals a significant decrease in the risk of loan recall by 4.87%,accompanied by an average increase of 23.72%in loan duration for short selling activities.Furthermore,the cost associated with short-sell disclosure causes a decline in both lending supply and short demand.

From Trends to Drivers:Key Factors Propelling Electric Vehicle Sales

With the rapid advancement of human economic levels and modern civilization,the automobile manufacturing industry is increasingly confronted with challenges related to energy scarcity and environmental pollution.Low carbon emissions and energy savings have become the main focus of automotive development.Under the influence of government incentives,the sales of household electric vehicles(EVs)have increased significantly,although they still represent a small share of the overall car market.To examine the factors influencing consumer purchases of household EVs,this report integrates both qualitative and quantitative analyses,controlling for single variables.Using linear regression,an empirical analysis was conducted on 18 BYD models with varying ranges and prices.The results indicate a strong positive correlation between driving range,selling price,and EV sales.Looking ahead,the development of new energy vehicles should prioritize longer ranges,high-quality features,and cost-effective performance.

Fuzzy Inventory Model under Selling Price Dependent Demand and Variable Deterioration with Fully Backlogged Shortages

The objective is to develop a model considering demand dependent on selling price and deterioration occurs after a certain period of time, which follows two-parameter Weibull distribution. Shortages are allowed and fully backlogged. Fuzzy optimal solution is obtained by considering hexagonal fuzzy numbers and for defuzzification Graded Mean Integration Representation Method. A numerical example is provided for the illustration of crisp and fuzzy, both models. To observe the effect of changes in parameters, sensitivity analysis is carried out.

Smart Contract to Traceability of Food Social Selling

Traditionally,food sustainability has been considered solely in the stage of agricultural production.However,globalization,the expansion of the food production industry,and the emergence of supermarket chains that control the retail food market require specific significant changes in supply chains in the food sector and,therefore,we need to address the economic,social,and environmental impacts of these events.On the other hand,social selling has increased rapidly in recent years,with a further boom,following current events related to the coronavirus disease(COVID-19).This explosion of social sales,where there are usually no control and regulation entities,can bring problems associated with mishandling items.In this paper,we expose how Blockchain technology supports the traceability of social sales by validating the data provided by the chain participants such as digital health passports,production and transport data in the sale process;the proposed solution generates recommendations on productmanagement considering the agreements previously made by the network actors.To evaluate the proposed smart contracts,we useHyperledger Caliper,obtaining an average throughput of 12.6 transactions per second and an average latency of 0.3 s for the asset update process.We also use a study case to evaluate the proposed project platform’s selling-transport stage using Internet of Things(IoT)sensors.

面向SELL语料库的AI虚拟英语口语训练系统研究

基于当前教育的发展形势下,为改善学生英语口语学习环境,提升学生学习效率,学校及教师要从根本上提高思想觉悟,转变教学理念,创新教学方法,切实发挥现代教育技术和设备的优势,通过科学手段激发学生英语口语学习兴趣,逐步提升学生口语水平与综合能力。本文以 SELL 语料库为载体,探索通过 AI 虚拟技术培养学生英语口语能力、构建英语口语训练系统的思路和方法。在保证学生学习效果的同时逐渐带领学生走进深度学习领域,提升学生口语使用的准确率和熟练度。

面向SELL语料库的AI虚拟英语口语训练系统研究

为了改善英语学习方式中的口语学习环境和效率,基于AI虚拟现实技术,建立了适用于中国英语语言特征的SELL语料库。从VR交互界面、语音识别和智能对话3方面对系统设计进行详细阐述,最后选取某高校两组学生班级进行了一个学期的英语学习对比试验。实践发现:首先,虚拟现实英语学习系统逻辑清晰,基本实现了课程个性化定制和三维虚拟操作,并且支持外部VR设备,为英语学习者提供了沉浸式的英语学习平台;其次,基于Kaldi语音识别工具训练后,修正的SELL语料库测试集的准确率基本上可以控制在12.1%,验证集准确率控制在11.5%;最后,对比英语学习实践发现试验组在听力和口语表达方面成绩有显著提高,口语表达方面平均成绩较之前提高了19.6%,听力得分较之前提高13.3%,试验结果表明该智能化虚拟现实学习训练系统效果较好。

CCR7与SELL在宫颈鳞状细胞癌中的表达及临床意义

目的探讨CCR7和SELL在宫颈鳞癌组织中的表达情况,并分析二者与宫颈鳞癌患者预后的关系。方法基于UALCAN数据库中305例宫颈鳞状细胞癌患者的mRNA表达谱数据,分析CCR7和SELL的表达情况。通过对不同分期的宫颈鳞状细胞癌患者的基因表达情况比较、CCR7和SELL基因共表达情况比较和生存曲线分析,讨论CCR7和SELL表达水平与患者的生存预后之间的联系。结果CCR7和SELL在宫颈鳞状细胞癌中的表达呈正相关(r=0.84),并且CCR7和SELL在宫颈鳞状细胞癌患者中的表达对预后具有显著性影响(P<0.05)。结论CCR7和SELL可以作为预测患者预后的潜在生物标志物和个体化治疗的潜在靶点。

打击传销违法犯罪的若干问题探讨

传销违法犯罪组织形为营销企业,实为诈财机构,严重影响社会稳定、干扰直销行业健康发展,素有"经济邪教"之称。近年来,各地相继在打击传规犯罪中取得显著成效,但传销活动屡禁不止,有些地区甚至十分严重。必须深入剖析传销的边界、法律规制,侦查、协作困境等问题,探讨推进执法协作机制、加强直销监管、健全法律法规等完善之道,进一步提升打击传销违法犯罪成效。

Semiotic knowledge toward heritage product in tourism industry： A case of Terengganu

In order to provide an appropriate context for the current state of the heritage product in tourism industry, semiotic knowledge become an important role to know deeply the identity, philosophy, and also the meaning of behind the actual product. Scott （2000） stresses the requirement of aesthetic and semiotic content in a creative product, instead of creativity. But, how many of retailers and salespersons in heritage product believe the semiotic as knowledge to present the product and opportunities in their selling？ According to Kotler （2000） a good personal selling will provide a detailed explanation or demonstration of the product. The message can be varied by the salesperson to fit the motivations and interests or each prospective customer. So, the purpose of this paper is to closely examine the level of awareness among retailers and salesperson toward the important of semiotic knowledge as part of strategic persuasion in a selling process. This survey study will develop a sample among retailers and salesperson in Kuala Terengganu as a respondent who give the feedback to fulfill the research questions.

试析物价指数统计

试析物价指数统计郑月萍统计是认识社会的有力武器，它以其特有的方式来反映、监督和预测国民经济的运行。它可以通过一系列描述性指标如国民生产总值、国民收入、财政收入与支出额、进出口贸易额等等来反映社会经济运行的过程与结果；它可以通过一系列评价指标对社会运行...

On Origin of Power-Law Distributions in Self-Organized Criticality from Random Walk Treatment

The origin of power-law distributions in self-organized criticality is investigated by treating the variation of the number of active sites in the system as a stochastic process. An avalanche is then regarded as a first-return random walk process in a one-dimensional lattice. We assume that the variation of the number of active sites has three possibilities in each update： to increase by 1 with probability f1, to decrease by 1 with probability f2, or remain unchanged with probability 1 - f1 - f2. This mimics the dynamics in the system. Power-law distributions of the lifetime are found when the random walk is unbiased with equal probability to move in opposite directions. This shows that power-law distributions in self-organized criticality may be caused by the balance of competitive interactions.

Understanding the Impacts of Plant Capacities and Uncertainties on the Techno- Economic Analysis of Cross-Laminated Timber Production in the Southern U.S.

Understanding the economic feasibility of cross-laminated timber(CLT),an emerging and sustainable alternative to concrete and steel,is critical for the rapid expansion of the mass timber industry.However,previous studies on economic performance of CLT have not fully considered the variations in the feedstock,plant capacities,manu-facturing parameters,and capital and operating costs.This study fills this gap by developing a techno-economic analysis of producing CLT panels in the Southern United States.The effects of those variations on minimum sell-ing price(MSP)of CLT panels are explored by Monte Carlo simulation.The results show that,across all the plant capacities from 30,000 to 150,000 m^(3)/year,the MSP ranges from$345 to$609/m^(3) with a±6%–9%range caused by the variations in feedstocks,key manufacturing parameters,capital and operating cost.The MSP decreases sig-nificantly along the increasing capacities.A sensitivity analysis exhibits that the lumber price,lumber preparing loss,plant capacity,and the installed costs of layering and gluing,finishing,and miscellaneous,are the top driving factors to CLT MSP.Supported by Geographic Information System,this study also studies the transportation cost of delivering CLT to customers under three CLT demanding levels(1%,5%,15%).The results show that the trans-portation cost is 1%–8%of the MSP.Lower demanding level or higher plant capacity can increase the transporta-tion cost due to average longer delivering distance.When considering the delivered cost that sums MSP and transportation cost,larger plant capacity does not necessarily generate lower delivered cost.

Experimental study on human umbilical cord blood scheduled transplanta-tion in severe combined immunodeficient mice

Objective: To explore a new way for developing the human umbilical cord blood (CB) engraftment with high efficiency and in further understand the homing potentiality of hematopoietic stein/progenitor cells (HSC/HPC). Method: Sub-lethally irradiated severe combined immunodeficient (SCID) mice were transplanted i. v. with CB which was cryopre- served at - 80℃. Human cells in recipient mice were detected by flow cytometry and CFU-GM assay for each host organ. Results: In contrast with the single transplantation, scheduled engraftment of the identical numbers of CB cells resulted in an obvious increase of CD45+ and CD34+ cells produced in SCID mouse bone marrow (BM). While the donor cells were reduced by 5 times, the similar reconstitution of both hematopoietic fumctions and part of immunologic fumctions was ob- tained.Conclusion:Scheduled engraftment can improve repopulating of the HSC, which provides a novel way for clinical cord blood engraftment into adults.

Manufacturers’channel selections under the influence of the platform with big data analytics

To obtain the platform s big data analytics support,manufacturers in the traditional retail channel must decide whether to use the direct online channel.A retail supply chain model and a direct online supply chain model are built,in which manufacturers design products alone in the retail channel,while the platform and manufacturer complete the product design in the direct online channel.These two models are analyzed using the game theoretical model and numerical simulation.The findings indicate that if the manufacturers design capabilities are not very high and the commission rate is not very low,the manufacturers will choose the direct online channel if the platform s technical efforts are within an interval.When the platform s technical efforts are exogenous,they positively influence the manufacturers decisions;however,in the endogenous case,the platform s effect on the manufacturers is reflected in the interaction of the commission rate and cost efficiency.The manufacturers and the platform should make synthetic effort decisions based on the manufacturer s development capabilities,the intensity of market competition,and the cost efficiency of the platform.

Analysis on the Comparison of Vegetable Price

In 2010,the garlic,bean and ginger became more expensive than ever,which made some people's life harder.In response to such phenomena,the retail price and wholesale price at the producers' end,the retail price and wholesale price at distributors' end,and consumption related data(disposable income,consumption expenditure,fresh vegetables amount from 2004 to 2011 were compared and analyzed in this paper.Results showed that the average price(selling price,wholesale price and retail price) of five kinds of vegetables generally rose.There was certain differences in the price change range.Since 2004,especially in 2009 the vegetable prices had been so high that it had influenced the life of low income families in China.

Analysis on the Mode and Competitive Strategy of Electricity Sales in the Background of Electric Power System Reform

A new round of reform of the power system conforms to the national development of the energy revolution and the reform of the electricity market system. As an important promoter of the energy revolution and power reform, a new round of power system reform has brought profound changes to the energy industry and the power industry and the electricity market system has changed dramatically. With the release of the electricity market, market competition intensified. This paper analyzes the competition strategy of electricity sales market, analyzes the characteristics of market participants such as power generation enterprises, power grid enterprises, electricity sales companies and users, and puts forward the corresponding coping strategies to help the market participants to deal with the opportunities and challenges brought by power system reform, provide guidance and reference for the market participants.

Marketing of African Walnut [Tetracarpidium conophorum Mull. （Arg）] in Southwest Nigeria： Production Issues and Contributions to Stakeholders

The survey was carried out in Ekiti, Oyo, Ogun, Ondo, and Osun states located in SW Nigeria. The respondents for the study include thirty marketers and thirty producers of African walnut randomly selected within each of the state, making a total of 60 respondents per state and 300 for the five states. Two sets of structured questionnaires were designed, one for each eatergory of the respondents. The questionnaires were designed to solicit information on demographic characteristics of the producers and marketers of African walnut, production and marketing challenges of the walnut, price trend along the marketing chain, and interraction and relationships of the middlemen. The questionnaires were administered through individual and focus group methods. Also, indepth interview of the respondents was conducted to supplement data obtained from the questionnaires. Purposive sampling method was used to select local markets where the walnut were sold for study of the price trend of the walnut for two seasons （from 2007 to 2008）. Marketing of the walnut started with farmers that plant the perennial climber on their farmland, while the marketing intermediaries include the village merchants, wholesalers, and the retailers. Adult male dominated the production sector of African walnut while processing and marketing the nuts were mostly done by the women and children. There is high demand for the walnut as delicacy and snack; although industrial usage is yet to be fully developed. Marketing of the cooked nuts and at retail quantity had the highest profit along the marketing chain. There is need for expansion of the current scale of production of the walnut to meet increasing demand. Provision of appropriate storage facilities to prevent spoilage of the product in rural areas and good rural road network for easy conveyance to urban markets where it is majorly consumed is pertinent for marketing of the walnut.