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This study aims to critically evaluate the competitiveness of Transformer-based models in financial forecasting, specifically in the context of stock realized volatility forecasting. It seeks to challenge and extend upon the assertions of Zeng et al. (2023) regarding the purported limitations of these models in handling temporal information in financial time series.

Employing a robust methodological framework, the study systematically compares a range of Transformer models, including first-generation and advanced iterations like Informer, Autoformer, and PatchTST, against benchmark models (HAR, NBEATSx, NHITS, and TimesNet). The evaluation encompasses 80 different stocks, four error metrics, four statistical tests, and three robustness tests designed to reflect diverse market conditions and data availability scenarios.

The research uncovers that while first-generation Transformer models, like TFT, underperform in financial forecasting, second-generation models like Informer, Autoformer, and PatchTST demonstrate remarkable efficacy, especially in scenarios characterized by limited historical data and market volatility. The study also highlights the nuanced performance of these models across different forecasting horizons and error metrics, showcasing their potential as robust tools in financial forecasting, which contradicts the findings of Zeng et al. (2023)

This paper contributes to the financial forecasting literature by providing a comprehensive analysis of the applicability of Transformer-based models in this domain. It offers new insights into the capabilities of these models, especially their adaptability to different market conditions and forecasting requirements, challenging the existing skepticism created by Zeng et al. (2023) about their utility in financial forecasting.

Facing budgetary challenges, successive Australian Governments have chosen to proportionally reduce public expenditure on universities relative to levels of activity in both teaching and research. The question asked in this paper is whether Australia’s universities increased their efficiency in a manner consistent with the demands of government to provide productivity “dividends” or efficiencies?

Using archival data for 37 Australian universities from 2007 to 2013, this paper examines changes in productivity of university groups and individual institutions using the data envelopment analysis technique.

Results show a statistically significant system-wide (or technological) productivity improvement of 15.2 per cent from 2007 to 2013, but there was little average individual institutional change in efficiency. Productivity improvements were clearly observable for the Group of 8 institutions with an improvement of 25.1 per cent.

Universities, like other public sector bodies, can both improve individually and as an overall system. The system has improved greatly in terms of productivity at higher levels than may be anticipated.

Using data contemporaneous with a period of great change in university funding and sector competition, this study reveals how some universities benefited, whereas others struggled to maintain their relative position.

This study aims to focus on the interpretation component of Peirce’s triadic model of sign to identify: the components affecting the interpretation of an object and the components affecting the meaning creation by people for use in ontologies. Ashura was selected because it is a historical event and a meaningful sign in Iranian religious culture.

This qualitative study was conducted in two steps. In the first step, the Instagram pages of five groups of people were chosen as the sample and examined using qualitative content analysis. In the second step, 18 creators of Ashura works were selected, their lived experience in creating these works was collected using in-depth semi-structured interviews and analysed through phenomenology method.

Based on the results, the concept is context-oriented; one cannot interpret the signs according to one’s personal preferences because the context, social rules and habits limit this interpretation. Accordingly, the use of reference systems and rules of logic, as well as artificial intelligence and computer science tools alone cannot help represent meaning in ontologies. Rather, individual characteristics, contexts, presuppositions and components existing in personal, social and technological worlds are effective on concept formation and meaning creation. Thus, these factors must be considered in ontology, especially for multi-faceted and context-oriented concepts, such as Ashura.

This research adopted a new approach and method to study ontology. This study focused on interpretation and adopted Peirce’s sign model for ontology design.

Hepatitis C is one of the major health issues in both developed and developing countries. Hepatitis C virus (HCV) infection is more common in prisoners than in the general population. The purpose of this study was to determine the prevalence of HCV and its associated risk factors in Iranian male prisoners in Tehran.

In this cross-sectional study, the authors investigated the frequency and risk factors of hepatitis C infection among male prisoners in the Great Tehran Prison. Information on risk factors including the length of imprisonment, previous history of imprisonment, history of drug injection, history of tattooing, history of piercing, history of high-risk sex and family history of hepatitis C were extracted from patients’ records. To evaluate HCV status, blood samples were collected and tested.

In this study, 179 participants were included. Nine participants (5.0%, 95% CI, 2.3-9.3) were positive for hepatitis C. HCV infection was not significantly associated with age, marital status, education, previous history of imprisonment, length of imprisonment, piercing and high-risk sex; however, there was a significant association between a history of tattooing and a history of injecting drug use and Hepatitis C.

The prevalence of hepatitis C among male prisoners in Great Tehran Prison was 5% in this study, similar to recent studies on prisoners in Tehran. A history of drug injections as well as tattooing were the most important risk factors for hepatitis C in male prisoners.

It has been suggested that there is a link between the dietary intake of certain nutrients and the risk of prostate cancer. The aim of this study is to examine the associations between dietary intakes of all nutrients and the risk of prostate cancer in Kermanshah.

This case-control study was conducted in Kermanshah, a province in the west of Iran in November of 2016. The sample consisted of 50 patients with confirmed prostate cancer, and 150 healthy men who matched in age with these cases and did not have any symptoms of prostate disorder were chosen as controls. Dietary intakes were collected by a semi-quantitative food frequency questionnaire that contained 147 food items and were then analyzed by Nutritionist 4 software.

After adjustment for potential confounding factor, highest tertile compared to lowest tertile of dietary vitamin E intake [odds ratio (OR) = 0.21; 95% confidence interval (CI) = 0.05-0.89], lycopene intake (OR = 0.11; 95% CI = 0.01-0.86) and magnesium intake (OR = 0.02; 95% CI = 0.01-0.55) had a protective effect on the incidence of prostate cancer. However, there were no associations between dietary intakes of fiber, vitamin A, vitamin D, vitamin B₁₂, folate and calcium with prostate cancer.

The finding suggests that the dietary intakes of vitamin E, lycopene and magnesium could decrease the risk of prostate cancer. Nevertheless, dietary intake of other nutrients such as fiber, calcium, vitamins D, A, B₁₂ and folate was not associated with prostate cancer.

This paper aims to investigate atoms type and channel roughness effects on fluid behavior in nanochannel.

The results of mechanical properties of these structures are reported in this work by using molecular dynamics method.

The results show that nanochannel roughness is a limiting factor in flowing fluid in nanochannel. Moreover, fluids with less atomic weight have more free movement in ideal and non-ideal nanochannels.

For the study of mechanical properties of fluid/nanochannel system, the authors calculated parameters such as potential energy, density, temperature and velocity profiles of simulated fluids.

This chapter focuses on information efficiency as provided by fair value accounting (FVA) and corporate governance (CG) practices in an emerging market. Positive accounting theory was adopted as an empirical model to test the relationship between information efficiency and stock prices. Data for the period 2007–2020 from 576 listed firms on the Stock Exchange of Thailand were collected, tested, and analyzed using a fixed effect estimator. The results indicate that investors in the stock market trust the use of publicized efficient information as provided by FVA and CG practices in making their investment decisions, when FVA and CG proxies were found to significantly influence stock prices. Hence, this evidence implies that information efficiency leads to better firm values in an emerging market.

Sexually transmitted infections (STIs) can be transferred from one person to another through sexual contact. STIs lead to substantial morbidity and mortality and affect many different aspects of human life, including quality of life, sexual health, reproductive health and even the health of newborns and children. Despite of high rates of STIs in prisons, there are not sufficient screening, prevention and treatment programs to control STIs transmission among prisoners in Iran. This study aims to evaluate the prevalence of STIs among incarcerated women in Iran for the first time, using the active case finding strategy.

This is a cross-sectional study conducted on 438 incarcerated women in a prison in Tehran, Iran, from 2017 to 2018. A total of 438 prisoners were screened by active case findings for STI symptoms, then evaluated by complete genital and anal examination, followed by molecular testing.

A total of 189 (43.2%) prisoners announced vaginal discharge, while 194 (44.3%) individuals had vaginal discharge in the genital examination. In the cervical examination, 137 individuals (31.3%) had abnormal findings, of which 83 (18.9%) individuals had cervicitis, 40 (9.1%) individuals had cervical erosion, 38 (8.7%) individuals had cervical prolapse and 17 (3.9%) individuals had bleeding originated from the cervix.

This study showed that it is possible to set up a system in which the diagnosis, follow-up and treatment of prisoners with STIs can be actively performed. Educating prisoners about signs and symptoms, risk behaviors and prevention routes of STIs, as much as regular screening of prisoners, and adequate treatment can help control the STIs prevalence among prisoners and in the general population.

Iran has been ranked by the Basel Committee on Banking Supervision and the Financial Action Task Force (FATF) as one of the foremost countries in the world for money laundering. However, Iranian banks claim that they comply with international standards for reporting suspicious activity, risk management and training. This paper aims to investigate this dichotomy between perception and reality.

A Wolfsberg-style questionnaire was sent to partners in Iranian accounting firms, which have audited domestic banks over the past five years to investigate the adequacy of risk management systems.

Most Iranian banks have anti-money laundering (AML) systems, which compare favourably with those of international counterparties. Banks take a risk-based approach to potential criminal behaviour. The negative perception of Iranian banks is principally attributable to the government’s unwillingness to accede to “touchstone” international conventions. In spite of having in place AML laws, which are comparable in intent with those of the UK and the United States of America (USA), weak enforcement remains a significant impediment of which the political establishment is aware.

Measures required to bring Iranian banks into compliance with international standards may be less extensive than perceptions suggest. However, failure of the government to accede to conventions stipulated by the FATF means that banks may remain ostracised by foreign counterparties for the foreseeable future.

This study provides a unique insight into the extent of AML compliance in Iranian banks as verified by external auditors.

Introduction: According to the effective market hypothesis, investors act rationally when making an investment decision. The hypothesis assumes that investors invest in a way that maximizes their returns, taking into account the new information received. If the information released on the market is interpreted in the same way by all investors, no investor would be able to earn above the market. This hypothesis is valid in case of efficient markets. In the event that investors show irrational behavior to the information released on the market, the markets move away from efficiency. Overreaction behavior is one of the non-rational behaviors of investors. Overreaction behavior involves investors overreacting by misinterpreting the new information released to the market. According to De Bondt and Thaler’s (1985), overreaction hypothesis in the event that investors overreact to the news coming to the market, after a period the false evaluation, the price of the security is corrected with the reversal movement, without the need of any positive or negative information. Aim: The purpose of this study is to examine investors’ overreaction behavior in mergers and acquisitions. For this purpose, overreaction behavior was analyzed for companies whose stocks are traded on the Borsa Istanbul, which were involved in mergers or acquisitions. Method: In the study, companies that made mergers and acquisitions for the period 2007–2017 were determined, and abnormal returns and cumulative abnormal returns were calculated by using monthly closing price data of these companies. Moreover, whether investors overreact to the merger and acquisition decision is examined separately for one-, three- and five-year periods. Findings: As a result of the research, it has been observed that there is a reverse return for one-, three-, and five-year periods. However, it has been determined that the overreaction hypothesis is valid for only one year.