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Renal failure is an end-stage consequence after persistent hyperglycemia during diabetic nephropathy (DN), and the etiology of DN has been linked to oxidative stress. The purpose of this research was to determine the beneficial synergistic effects of S-Allyl Cysteine (SAC) and Taurine (TAU) on oxidative damage in the kidneys of type 2 diabetic rats induced by hyperglycemia.

Experimental diabetes was developed by administering intraperitoneal single dose of streptozotocin (STZ; 65 mg/kg) with nicotinamide (NA; 230 mg/kg) in adult rats. Diabetic and control rats were treated with SAC (150 mg/kg), TAU (200 mg/kg) or SAC and TAU combination (75 + 100 mg/kg) for four weeks. The estimation of body weight, fasting blood glucose (FBG), oral glucose tolerance test (OGTT), oxidative stress markers along with kidney histopathology was done to investigate the antidiabetic potential of SAC/TAU in the NA/STZ diabetic group.

The following results were obtained for the therapeutic efficacy of SAC/TAU: decrease in blood glucose level, decreased level of thiobarbituric acid reactive substances (TBARS) and increased levels of GSH, glutathione-s-transferase (GST) and catalase (CAT). SAC/TAU significantly modulated diabetes-induced histological changes in the kidney of rats.

SAC/TAU combination therapy modulated the oxidative stress markers in the kidney in diabetic rat model and also prevented oxidative damage as observed through histopathological findings.

The aim of this paper is to investigate how social media use (SMU) affects the entrepreneurial orientation (EO) and entrepreneurial opportunities (EOP) of start-ups.

The hypothesis testing and analysis were conducted using the partial least squares approach to structural equation modeling (PLS-SEM).

The research shows that SMU has a strong positive impact on EOP, while it has no impact on start-ups' EO. Interestingly, the impact of SMU on EOP is stronger than the impact of EO on EOP.

The findings add new knowledge to the emerging research stream that focuses on SMU in the context of entrepreneurship and provides useful insights for both scholars and practitioners. In particular, the evidence suggests implications for stakeholders with regard to their firms' entrepreneurial activities. This research offers several possible avenues for future research.

This study aims to explore how businesswomen running micro and small enterprises (MSEs) use social media (SM) to engage customers. The study also investigates how SM (vs traditional media) and customer engagement improve business performance.

This qualitative study is based on interviews with businesswomen.

Businesswomen use SM actively but not effectively. SM are used primarily for advertising and promotion. External factors, such as family and friends, are more influential in the decision of women to use SM in business. Women mostly use defensive rather than offensive strategies. Effective use of SM in conjunction with conventional marketing tools can improve customer engagement and increase business performance.

The research findings are valuable for marketing managers, women entrepreneurs and micro and small businesses in making decisions to effectively use SM.

This study investigates customer engagement from the owner/manager’s perspective in contrast to the general customer-centric approach. The study contributes analysing an important and scarcely explored area, which is the use of SM by women-run MSEs in less developed countries to engage consumers.

Este estudio explora cómo las mujeres de negocios que dirigen micro y pequeñas empresas (MSE) utilizan las redes sociales para atraer a los clientes. El estudio también investiga cómo las redes sociales (frente a los medios tradicionales) y la involucración de los clientes mejoran el rendimiento empresarial.

Este estudio cualitativo se basa en entrevistas con mujeres empresarias.

Las mujeres empresarias utilizan las redes sociales de forma activa, pero no eficaz. Las redes sociales se utilizan principalmente para la publicidad y la promoción. Los factores externos, como la familia y los amigos, influyen más en la decisión de las mujeres de utilizar las redes sociales en los negocios. Las empresarias utilizan sobre todo estrategias defensivas en lugar de ofensivas. El uso eficaz de las redes sociales junto con las herramientas de marketing convencionales puede mejorar el compromiso de los clientes y aumentar el rendimiento de la empresa.

Los resultados de la investigación son valiosos para las directivas de marketing, las mujeres empresarias y las micro y pequeñas empresas a la hora de tomar decisiones y para utilizar eficazmente las redes sociales.

Este estudio investiga el compromiso del cliente desde la perspectiva del propietario/gerente en contraste con el enfoque general centrado en el cliente. El estudio contribuye a analizar un área importante y escasamente explorada, que es el uso de las redes sociales por parte de las microempresas dirigidas por mujeres en los países menos desarrollados para involucrar a los consumidores.

本研究探讨了经营微型和小型企业（MSEs）的女商人如何使用社交媒体来吸引客户。该研究还调查了社交媒体（相对于传统媒体）和客户参与如何提高企业绩效。

这项定性研究是基于对女商人的采访。

女商人积极使用社交媒体, 但并非有效。社交媒体主要用于广告和推广。外部因素, 如家庭和朋友, 对妇女在商业中使用社交媒体的决定更有影响力。女性大多使用防御性而非进攻性策略。将社交媒体与传统的营销工具有效地结合起来使用, 可以提高客户的参与度, 增加企业的业绩。

研究结果对营销经理、女企业家和小微企业做出有效使用社交媒体的决定很有价值。

本研究从业主/经理的角度调查了客户参与度, 与一般的以客户为中心的方法不同。该研究有助于分析一个重要的、很少被探索的领域, 即欠发达国家的妇女经营的微型企业使用社交媒体来吸引消费者。

Despite its devastating nature, the COVID-19 pandemic has also catalyzed a substantial surge in the adoption and integration of technological tools within economies, exerting a profound influence on the dissemination of information among participants in stock markets. Consequently, this present study delves into the ramifications of post-pandemic dynamics on stock market behavior. It also examines the relationship between investors' sentiments, underlying behavioral drivers and their collective impact on global stock markets.

Drawing upon data spanning from 2012 to 2023 and encompassing major world indices classified by Morgan Stanley Capital International’s (MSCI) market and regional taxonomy, this study employs a threshold regression model. This model effectively distinguishes the thresholds within these influential factors. To evaluate the statistical significance of variances across these thresholds, a Wald coefficient analysis was applied.

The empirical results highlighted the substantive role that investors' sentiments and behavioral determinants play in shaping the predictability of returns on a global scale. However, their influence on developed economies and the continents of America appears comparatively lower compared with the Asia–Pacific markets. Similarly, the regions characterized by a more pronounced influence of behavioral factors seem to reduce their reliance on these factors in the post-pandemic landscape and vice versa. Interestingly, the post COVID-19 technological advancements also appear to exert a lesser impact on developed nations.

This study pioneers the investigation of these contextual dissimilarities, thereby charting new avenues for subsequent research studies. These insights shed valuable light on the contextualized nexus between technology, societal dynamics, behavioral biases and their collective impact on stock markets. Furthermore, the study's revelations offer a unique vantage point for addressing market inefficiencies by pinpointing the pivotal factors driving such behavioral patterns.

The purpose of this research is to examine the effect of heuristic biases on investment decisions through multiple mediation mechanisms of risk tolerance and financial literacy in the Tanzanian stock market.

A sample of 316 individual investors in the Tanzanian stock market was obtained through questionnaires. The data were analyzed using structural equation modeling (SEM).

The findings show that financial literacy mediates insignificantly the effects of overconfidence, availability, anchoring and representativeness heuristics on investment decisions. Further, financial literacy does not influence the effect of risk tolerance and investment decisions. Risk tolerance is confirmed as a positive mediator of overconfidence, availability, anchoring and representativeness heuristics in investment decisions. Also, the study shows that overconfidence exerts a stronger influence on investment decisions, followed by availability, representativeness, risk tolerance, anchoring and financial literacy.

The study deals with real investors. Therefore, it uses fewer items to measure the constructs in order to avoid respondent bias. Further research could examine the effects of heuristic biases on investment decisions by adding or modifying the items of particular constructs and studying institutional investors.

The findings can help individual investors to analyze and evaluate their behavior toward stock selection. Securities institutions can use this research to understand investors' behavior, evaluate future market trends and provide advice to the investors.

Previous studies have examined the impact of heuristics on the investment decisions of individual investors. The unique empirical analysis developed in this paper is that it examines the multiple mediation mechanisms of risk tolerance and financial literacy with respect to heuristic biases and investment decisions in the Tanzanian stock market.

This study aims to scrutinize and analyze the regional challenges facing Kuwait and their impact on Kuwait’s national security since the outbreak of Arab Spring revolutions in 2011. These challenges are as follows: the Iranian threat, the Arab Spring revolutions and the recent Gulf crisis with Qatar.

The study adopts national interest approach, which focuses on a state’s economic, military and cultural objectives. According to this approach, a state seeks to achieve its own national interests. There are multiple national interests, but the ultimate goal is the survival and security of the state.

The study concludes that the Gulf countries, including Kuwait, are facing unprecedented challenges as a result of the dire consequences of the Arab Spring revolutions, the control of Houthi group on Yemen’s institutions and the repercussions of negotiations between 5 + 1 group (Russia, China, France, Britain, the USA + German) and Iran on the Iranian nuclear program. These developments are not in the interest of the Gulf countries in general and Kuwait in particular. The study recommends that Kuwait must adopt an external strategy based on achieving the regional balance with the countries of the region and dealing with different challenges according to its national interest.

The importance of the study stems from the fact that the Arab region witnessed many developments at the political, economic and social levels since the outbreak of the Arab Spring revolutions. These developments posed many threats to Arab countries such as the spread of terrorism, religious extremism, terrorist organizations and non-state actors. They also became a key determinant of foreign policy. Kuwait was affected by these developments. In addition, it faces threats affecting its national security such as the Iranian threat, the Arab Spring revolutions and the Gulf crisis with Qatar. The study addresses these threats and how Kuwait, as a small state, has dealt with such enormous ones.

The purpose of the present study is to investigate travel agencies' social media usage and its perceived effectiveness by small- and micro-Italian travel agencies; the pre-pandemic period is compared to the forecasts for the post-Covid-19 period and different characteristics of firms and entrepreneurs are considered. Furthermore, the study analyses the expected benefits in terms of marketing objectives, such as improving brand image and/or personalizing the offer.

The research was developed through a questionnaire administered electronically to travel agents (282 respondents). The resulting data was analyzed by applying the McNemar test, a pairwise t-test and the multivariate analysis of variance.

The results show that social media are strategically significant for travel agents, even though their adoption is influenced by different agency aims; the perceived effectiveness results are diversified according to varying agency typologies.

The two main limitations of the study are its focus on the Italian context only and the missing consideration of the consumer's point of view. The latter prevents an exhaustive assessment of future trends regarding the use of social media in the client–agency relationship.

The study, which focuses on a little debated topic concerning the relationship between social media and SMEs, organically explores various dimensions related to the adoption of social media by small agencies, also considering the impact of the Covid-19 on the perception of travel agents. As a further element of originality, the research takes into consideration the main social platforms separately rather than the set of tools as a whole.