Miracle-dz/UniFAR-FTUs huggingface dataset:
The e ﬀ ects of foreign currency exposure and Shar ī ’ ah-compliant status on ﬁ nancial hedging strategy

Purpose – Drawing upon underinvestment theory and clientele effect hypothesis, this paper aims to examine the effectsofforeigncurrency(forex)exposureandShari ’ ah-compliantstatuson ﬁ rms ’ ﬁ nancialhedgingstrategy. Design/methodology/approach – Based on data of 250 non ﬁ nancial ﬁ rms listed on Bursa Malaysia from 2010 to 2018 (2,250 ﬁ rm-year observations), the authors test the impact of forex exposure based on a vector of foreign-denominated cash ﬂ ows (FCF) indicators and ﬁ rms ’ Shar ī ʿ ah-compliant status on two proxies of ﬁ nancial hedging decisions, namely, the ratio of the notional value of currency derivatives to total assets and a binomial measure of hedging status. The hedging decision models are estimated using panel logistic regression and system generalizedmethodofmoments. Findings – The results indicate signi ﬁ cant positive effects of the forex exposure indicators on ﬁ rms ’ propensity to hedge. However, the impact of forex exposure is most prevalent via total FCF. The results also reveal signi ﬁ cant positive effects of Shar ī ʿ ah-compliant status on ﬁ rms ’ propensity to hedge but its negative impacts on the value of currency derivatives they use. The results suggest that Shar ī ʿ ah-compliant ﬁ rms refrain from engaging in currency derivatives to avoid riba ’ and subsequently subdue the clientele effect. However, when the forex exposure reaches higher levels, engagement in currency derivatives becomes a matter of tentative necessity(dharurat). none of the companies reports using Shar ī ʿ ah-compliant derivatives, the authors thus assume that they usederivative instruments that tolerate “ riba. ” Practical implications – Given the signi ﬁ cance of forex exposure on hedging decisions, the accounting profession must strictly adopt FRS 7 and FRS 139 for all listed ﬁ rms to avoid market scrutiny and sustain their clientele. The results also call for the Islamic market regulators to include mandatory disclosure of conventional currency derivatives in screening ﬁ rms for clearly prohibited activities to help enhance the credibility of itsIslamic ﬁ nancial market. Originality/value – Due to dif ﬁ culty accessing relevantcash ﬂ ow data, the study is among the few studies that measure forex exposure using FCF and test more proxy indicators. This study is perhaps the ﬁ rst to examine theShari ’ ah perspective oncurrency derivatives incorporate forexrisk management. conventional banking and lending, conventional insurance, gambling, liquor, and liquor-related activities, pork and pork-related activities, non-halal foods and beverages, Shari ’ ah non-compliant entertainment, tobacco, and tobacco-related activities, interest income from conventional accounts and instruments (including interest income awarded from a court judgment or arbitrator, and dividends from Shari ’ ah non-compliant investment), and other activities deemed non-compliant according to the Shari ’ ah principles as determined by the SAC. in in ﬂ uencing the NV of currency derivatives. It suggests that companies limit their currency derivatives usage because most
Changes in the Physicochemical Properties Caused by Irrigation at the Pre-Harvest Cluster Drop Period in 'Tombul' Hazelnut Cultivar

: This research was carried out to evaluate the changes of physicochemical contents during storage of 'Tombul' hazelnut cultivar irrigated at the pre-harvest cluster drop period, which is critical for cluster drops, in a conventional rain-fed 'Tombul' hazelnut orchard in Giresun province (Turkey) in 2015 and 2016. The experiment was designed as randomized plots with 3 replications. The plants (multi-stemmed bush) were irrigated with drip irrigation on 16 July (46.08 mm/60 cm), 26 July (44.68 mm/60 cm), 30 July (43.68 mm/60 cm) and 06 August (44.08 mm/60 cm). The dried in-shell hazelnuts were grouped as irrigated and unirrigated (control) samples. 12 kg of in-shell hazelnuts were used in each replication. The hazelnuts were stored in mesh bags under laboratory conditions (20-22 ºC and 70-80% relative humidity) for 12 months. The results showed that moisture, ash, oil, and palmitic acid values were significantly affected by the irrigation application. The lowest moisture and ash values, and the highest oil and palmitic acid values were obtained from the samples of irrigated plants. On the other hand, the changes in protein, rancidity, peroxide and vitamin E, and other fatty acids, except for the palmitic acid, were not significant. In conclusion, it can be said that supplementary irrigation in the pre-harvest period has a significant effect on some physicochemical changes during storage in hazelnuts. According to these results, supplementary irrigation can be recommended for hazelnut storage quality in case of insufficient precipitation during the last cluster drop period.
CONTROLLED EXCHANGE OF CO-EXISTENT ATTRACTORS

The idea of adaptable systems has been used on several applications, where the ability of a system to exchange between different attractors and configurations can bring a lot of versatility and expand its functionality. However, the control methods required to explore the different behaviours and configurations of these adaptable systems have not been fully investigated and just a few studies have focused on this matter [1]. Existent controllers also require the full knowledge of the attractors, the system model and the phase between response and excitation in non-autonomous systems, which bring several difficulties on real applications. The time-delayed feedback control (TDF) [2] is the target of several studies and was designed to stabilize unstable periodic orbits (UPOs) inside chaotic attractors. Originally, it requires the knowledge of the system‘s model to calculate its gains and stabilize UPOs, however, when targeting stable orbits this calculation is not required and only a low amount of information, mainly the period of the target orbit, is needed. Recently, a new direct mass excited impact oscillator with high excitation accuracy [3] has been reported to present multi stability and the ability to be a platform for implementing and testing control methods. This work introduces a new modification of the time-delayed feedback control to perform exchange between coexisting attractors and applies it numerically and experimentally to an impact oscillator to test its capabilities in various scenarios. Initially an analysis of the system dynamics is performed and four different scenarios are selected to test the control strategy. The TDF control is applied to each different scenario and successfully exchange the system response between each coexistent attractor in the first three cases. In the last case the TDF alone can not perform the exchange and the modification proposed is introduced by utilizing a fraction of the targets orbit period as the delay. The proposed controller is able to successfully perform the exchange which can be verified on Fig. 1. -1.0 -0.5 0.0 0.5 1.0 0 15 30 45 0 30 60 -0.04 -0.02 0.00 0.02 0.04 D is pl ac em en t [ m m ] Init. Period 1 Period 2 System Response Target
Numerical Study of Combined Drag Reduction Bases on Vortex Generators and Riblets for the Ahmed Body using IDDES Methodology

The flow fields around vehicle drag reduction devices are three-dimensional, complicated, and unsteady. Meanwhile, the small scale of the drag reduction device brings more challenges to the simulation. An Improved Delayed Detached Eddy Simulation (IDDES) was applied to study the effect of two types of drag reduction device. First, the flow field of an Ahmed body at a 25° slant was simulated in detail using IDDES and verified by experiment data. Afterwards, the flow field structures of adding-on vortex generators (VGs) and riblets on the rear and slant surface of the Ahmed body were studied. The simulation results of the velocity, pressure and vortex structure on the controlled case are presented by comparing with the baseline model to illustrate the drag reduction mechanism. The two drag-reduction devices had different flow mechanisms and significantly affected the development of the separation vortex near the rear and slanted surface. A maximum drag reduction of 6.21% could be achieved using VGs on the rear surface. Finally, four combinations of those two devices were investigated. The results demonstrated that suitable combinations can further decrease the aerodynamic drag, and an 8.62% drag reduction is achieved.
A tensor decomposition model for longitudinal microbiome studies

Longitudinal microbiome studies can help delineate true biological signals from the high interindividual variability that is common in microbiome data. However, there are few methods available for unsupervised dimension reduction of time course microbial abundance observations. Existing meth-ods do not fully observe the distribution characteristics of such data types, namely, zero-inﬂation, compositionality, and overdispersion. We present a tensor decomposition model and a semiparametric quasi-likelihood estimation method for the decomposition of longitudinal microbiome data, by generalizing existing approaches in tensor decomposition of Gaussian data. Optimization is performed through projected gradient descent additionally allowing interpretability constraints. We show through simulation studies our method is able to recover low rank structures from microbiome time course data, better than existing approaches. Lastly, we apply our method to two existing longitudinal microbiome studies, to detect global microbial changes associated with dietary and pharmaceutical effects, as well as infant birth modes.
Usage of Blackboard and Academic Performance of University Students: A Partial Least Square Approach

Blackboard as a learning management system (LMS) is rarely used in Malaysian universities as it always seen as pricy. In addition, there is little research on blackboard usage among the students in Malaysia. Hence, this study adopted the Technology Acceptance Model (TAM) and aimed to determine the relationship between usage of blackboard (perceived ease of use, perceived usefulness) and students’ academic performance in one of the private universities in Petaling Jaya. A total of 100 valid responses were obtained. Researchers analyzed the data using Partial Least Square Structural Equation Modelling (Smart-PLS 3.2.7). The study found that perceived ease of use have a positive and significant relationship with students’ academic performance. However, there is no significant relationship between perceived usefulness and academic performance. The ramifications of this study to blackboard developers and university administrators are discussed; in terms of understanding how to improve academic performance through the usage of LMS and social networks site (SNS). Implications of the study, as well as suggestions for future studies are also discussed in this article.
Identification and Impact of Online Deceptive Counterfeit Products: Evidence from Amazon

: With the proliferation of third-party sellers, counterfeiting has become a serious source of friction in online marketplaces. The impact of counterfeit products in online marketplace remains largely unexplored, in part due to the difficulty of identifying fake items. By leveraging public sales and review data on Amazon, we apply natural language processing techniques to extract the likelihood of encountering a counterfeit product when purchasing from an Amazon ASIN listing. We focus on two product categories, men’s fragrance and cell phone wireless chargers, both of which are known to be significantly impacted by online counterfeiting. We adopt a BLP-type choice model with random coefficients to investigate how the probability of a counterfeit product encounter affects user demand, and how the intensity of counterfeiting affects the demand for likely authentic products. Our results validate that consumers can leverage product reviews to avoid knockoffs; a higher propensity of counterfeit encounter significantly reduces consumer mean utility and that they are more cautious when purchasing high-end or popular items. We further find a substitution effect between likely counterfeit and likely authentic products; a 10% increase in one Likely Counterfeit product’s price will cause a 0.11% average increase in the market share of each Likely Authentic product. Finally, the detection and disclosure of likely counterfeit products to consumers would protect the sales of likely authentic products, thereby improving consumer utility, but can increase customer churn.
Corporate social responsibility and financial performance – the role of corporate reputation, advertising and competition

PurposeThe research on corporate social responsibility (CSR) and firm performance (FP) has seen a surge over the years. However, the role of corporate reputation (CR), advertising strategy and market competition is still unclear. The purpose of this study is to consider this gap and test an integrative model of CSR-FP, in the context of India.Design/methodology/approachThe data for CSR expenditure were collected from the annual reports of the selected companies. CR was captured using the ranks of Fortune India 500, Business Standard 1,000 and Economic Times 500. The financial data were collected from CMIE (Prowess) database.FindingsResults of structural equation modeling (SEM) revealed a significant relationship between CSR expenditure of the firm and its reputation; but no relationship between CR and performance. When CR increases, the performance of a firm may not improve. Competitive intensity (CI) had no statistically significant role in the CR-FP relationship for performance. Results suggest that reputed firms perform well despite high competition within an industry. High reputation is effective in improving performance irrespective of competition. CI has a positive impact in the reputation–performance linkage. Advertising intensity (AI) played a significant moderating role in the CSR intensity and CR relationship.Originality/valueThis research represents an added value for the literature on CSR by highlighting the importance of CR, advertising strategy and market competition in the relationship between CSR and FP. The findings have several implications for theory and practice, which have been discussed in the study.
Platform Entry and Innovation: The Role of Adjustment Costs in Shaping Complementor Innovation Strategies

Platforms compete both with other platforms as well as their own complementors (Kretschmer, Leiponen, Schilling, & Vasudeva, 2020). Prior research has highlighted heterogenous effects of platform entry on complementors’ subsequent innovation. Focusing on within-platform dynamics following platform entry, prior research has identified contradictory findings: first, platform entry increases the rate of complementor innovation in affected areas (Foerderer, Kude, Mithas, & Heinzl, 2018) and second, platform entry decreases the rate of complementor innovation in affected areas (Wen & Zhu, 2019). This study attempts to resolve this tension (Rietveld & Schilling, 2021) by highlighting complementor adjustment costs in shifting innovation efforts as a driver of these potential outcomes. In this paper, we build on prior literature by theorizing and empirically testing cross-platform entry effects, by examining the extent to which complementors’ adjustment costs to redeploy innovation efforts to competing platforms affect their response to entry on a focal platform. We find that complementors with lower adjustment costs shift their innovation activity to a competing platform while complementors with higher adjustment costs are confined to innovation attempts on the focal platform.
Large-scale lateral–torsional buckling tests of welded girders

Currently, the Canadian steel design standard, CAN/CSA S16-14, prescribes unified design equations for predicting lateral–torsional buckling that do not distinguish between rolled and welded sections. However, residual stresses present in welded sections can create unfavourable conditions that may reduce their resistance to lateral–torsional buckling. Recent numerical studies reinforce this notion and have indicated that the current design equations to determine lateral– torsional buckling resistance may be unconservative for welded girders, particularly in the inelastic range. Despite the numerical evidence, there is a paucity in up-to-date physical testing of welded girders fabricated with modern processes, which forms a substantial gap when concluding the adequacy of CSA S16-14. This paper discusses the lateral–torsional buckling physical testing program being undertaken at the University of Alberta Steel Centre. Development of the unique girder-stability test-bed is described and preliminary results of the first large-scale specimen, 9.75 m (32 ft) in length and with laterally and torsionally pinned end conditions, are presented.
A study on MOCVD growth window for high quality N-polar GaN for vertical device applications

Lateral N-polar GaN devices have outperformed Ga-polar GaN counterparts in mm-wave applications. A vertical N-polar GaN device structure with higher breakdown voltage is expected to further improve the output power density. This paper is aimed at understanding the growth conditions for such a vertical N-polar GaN device stack. A vertical device stack requires high-quality n-GaN layer with low unintentional dopant concentration and high electron mobility for better ON resistance–breakdown voltage performance. A systematic study by varying reactor temperature, pressure and NH3 flow rate is performed in the metal organic chemical vapor deposition growth of N-polar GaN for vertical device structure. Structural quality of the sample is increased with increase growth temperature and higher NH3 flow rate, yet an increase in surface roughness is observed for highest temperature used. The N-polar GaN grown at the optimized conditions exhibited a x-ray diffraction rocking curve full width half maximum of symmetric (0002) and skew-symmetric (20 2ˉ 1ˉ ) scans of 358″ and 569″ respectively with a low oxygen and carbon concentration of 6 × 1016 cm−3 and 5 × 1016 cm−3, respectively. The optimized sample exhibited a low screw dislocation density of 2.5 × 108 cm−2 on sapphire substrate. A gradual increase in the bulk mobility of electrons with decrease in screw dislocation density in N-polar GaN is also reported.
I NNOVATION C APABILITY I NDICATORS FOR E NTREPRENEURS D EVELOPED THE B USINESS FROM T HAI U NIVERSITY I NCUBATOR

This research aimed to study and develop the innovation capability indicators for entrepreneurs who created their businesses from public universities' incubators in Thailand. This study applied the inductive research method using critical analysis; the sample included 202 entrepreneurs' variables related to Confirmatory Factor Analysis to find the model's concordance and empirical data. The entrepreneurs who developed their businesses from incubators of universities in Thailand had the innovation capability for business management through the following factors: the change and management development process at lower costs to achieve more efficient management, the novel/innovative product development process to the market, the perceived product enhancement process through new and modern channels, and the use of contemporary digital convergence for innovation capability construction to further take advantage of business competition. The research results and contributions revealed that the measurement model of innovation capability developed from the three main factors: process innovation capability, product innovation capability, and market innovation capability, leading to value synergistic business creation and directed innovation.
Reproduction number of monkeypox in the early stage of the 2022 multi-country outbreak

Monkeypox, a fast-spreading viral zoonosis outside of Africa in May 2022, has scientists on alert. We estimated the reproduction number is estimated to be 1.29 (95% CrI: 1.26, 1.33) by aggregating all cases in 70 countries as of July 22, 2022.
Epidemiology of neuropathic pain: an analysis of prevalence and associated factors in UK Biobank

Supplemental Digital Content is Available in the Text. An analysis of UK Biobank participants who completed a detailed pain questionnaire identified factors associated with neuropathic pain (NeuP) vs no chronic pain and non-NeuP and estimated the prevalence of NeuP. Abstract Introduction: Previous epidemiological studies of neuropathic pain have reported a range of prevalences and factors associated with the disorder. Objectives: This study aimed to verify these characteristics in a large UK cohort. Methods: A cross-sectional analysis was conducted of 148,828 UK Biobank participants who completed a detailed questionnaire on chronic pain. The Douleur Neuropathique en Quatre Questions (DN4) was used to distinguish between neuropathic pain (NeuP) and non-neuropathic pain (non-NeuP) in participants with pain of at least 3 months' duration. Participants were also identified with less than 3 months' pain or without pain (NoCP). Multivariable regression was used to identify factors associated with NeuP compared with non-NeuP and NoCP, respectively. Results: Chronic pain was present in 76,095 participants (51.1%). The overall prevalence of NeuP was 9.2%. Neuropathic pain was significantly associated with worse health-related quality of life, having a manual or personal service type occupation, and younger age compared with NoCP. As expected, NeuP was associated with diabetes and neuropathy, but also other pains (pelvic, postsurgical, and migraine) and musculoskeletal disorders (rheumatoid arthritis, osteoarthritis, and fibromyalgia). In addition, NeuP was associated with pain in the limbs and greater pain intensity and higher body mass index compared with non-NeuP. Female sex was associated with NeuP when compared with NoCP, whereas male sex was associated with NeuP when compared with non-NeuP. Conclusion: This is the largest epidemiological study of neuropathic pain to date. The results confirm that the disorder is common in a population of middle- to older-aged people with mixed aetiologies and is associated with a higher health impact than non-neuropathic pain.
A role for FAN1 in suppressing somatic CAG expansion, combined with the onset-delaying effect of the

A recent genome-wide association study of Huntington’s disease (HD) implicated genes involved in DNA maintenance processes as modifiers of onset, including multiple genome-wide significant signals in a chr15 region containing the DNA repair gene FAN1. Here, we have carried out detailed genetic, molecular and cellular investigation of the modifiers at this locus. We find that missense changes within or near the DNA binding domain ( p.Arg507His and p.Arg377Trp ) reduce FAN1's DNA binding activity and its capacity to rescue mitomycin C-induced cytotoxicity, accounting for two infrequent onset-hastening modifier signals. We also identified a third onset-hastening modifier signal whose mechanism of action remains uncertain but does not involve an amino acid change in FAN1. We present additional evidence that a frequent onset-delaying modifier signal does not alter FAN1 coding sequence but is associated with increased FAN1 mRNA expression in the cerebral cortex. Consistent with these findings and other cellular overexpression/suppression studies, knockout of FAN1 increased CAG repeat expansion in HD induced pluripotent stem cells. Together, these studies support the process of somatic CAG repeat expansion as a therapeutic target in HD, and clearly indicate that multiple genetic variations act by different means through FAN1 to influence HD onset in a manner that is largely additive, except in the rare circumstance that two onset-hastening alleles are present. Thus, an individual’s particular combination of FAN1 haplotypes may influence their suitability for HD clinical trials, particularly if the therapeutic agent aims to reduce CAG repeat instability.