Miracle-dz/UniFAR-FTUs huggingface dataset:
Evaluating the effects of a programming error on a virtual environment measure of spatial navigation behavior.

Relying on shared tasks and stimuli to conduct research can enhance the replicability of findings and allow a community of researchers to collect large data sets across multiple experiments. This approach is particularly relevant for experiments in spatial navigation, which often require the development of unfamiliar large-scale virtual environments to test participants. One challenge with shared platforms is that undetected technical errors, rather than being restricted to individual studies, become pervasive across many studies. Here, we discuss the discovery of a software bug in a virtual environment platform used to investigate individual differences in spatial navigation: Virtual Silcton. The bug, which was difficult to detect for several reasons, resulted in storing the absolute value of a direction in a pointing task rather than the signed direction and rendered the original sign of the direction unrecoverable. To assess the impact of the bug on published findings, we collected a new data set for comparison. Results revealed that although the bug caused suppression in pointing errors and had different effects across people (less accurate navigators had more suppression), the effect of the bug on published data is small, partially explaining the difficulty in detecting the bug. We also used the new data set to develop a tool that allows researchers who have previously used Virtual Silcton to evaluate the impact of the bug on their findings. We summarize the ways that shared open materials, shared data, and collaboration can pave the way for better science to prevent errors in the future. (PsycInfo Database Record (c) 2022 APA, all rights reserved).
Effect of Biaxial Orientation Process on Dielectric Properties of Polypropylene for Film Capacitor

This paper mainly studies the effect of different stretching ratios on the microstructure and dielectric properties of polypropylene films. Through experiments, it is found that with the increase of the stretching ratio, the grain size decreases and the crystallinity increases, and the transition from cx phase to $\beta$ phase is beneficial to improve the breakdown strength and energy storage density. The performance of the stretched PP film is obviously better than that of the original PP film. This work shows that stretching is an effective strategy to improve the properties of PP films. This method shows great potential for the modification of PP films.
The space of closed subgroups of ℝn is stratified and simply connected

The Chabauty space of a topological group is the set of its closed subgroups, endowed with a natural topology. As soon as n > 2, the Chabauty space of ℝn has a rather intricate topology and is not a manifold. By an investigation of its local structure, we fit it into a wider, but not too wild, class of topological spaces (namely, Goresky–MacPherson stratified spaces). Thanks to a localization theorem, this local study also leads to the main result of this article: the Chabauty space of ℝn is simply connected for all n.
The impact of different sentiment in investment decisions: evidence from China’s stock markets IPOs

In this study, we used data on China ’ s initial public offerings (IPOs), market volatility and macro environment before and after two stock crashes during 2006 – 2016 to investigate how different investor sentiment affects IPO first-day flipping. The empirical results show that the expected returns of allocated investors are affected by sentiment, with allocated investors having higher psychological expectations of future returns during an optimistic bull market and their optimism discouraging first-day flipping, while higher risk-free interest rate levels and rising broad market indices also discourage first-day flipping and tend to sell in the future. The pessimistic bear market during which allocated investors have lower psychological expectations of future returns, their pessimism will promote first-day flipping, and the increase in the risk-free rate level will also promote first-day flipping, which is the opposite of the optimistic bull market, indicating that their risk aversion has increased and they tend to sell on the same day. We also found an anomaly that the greater the decline in the broad market index during a pessimistic bear market, the more inclined the allocated investors are to sell in the future when the broad market index rises in an attempt to gain higher returns. These findings help explain and understand the impact of market and macro index fluctuations on investor behavior under different investor sentiments.
ELECTRONIC PROPERTIES OF CONDUCTING SYSTEMS Optics of semiconductors with a linear electron spectrum

The temperature and carrier concentration dependences of the frequency dispersion of the dielectric constant of graphene and 3D semiconductors with a narrow band gap are examined at frequencies above the carrier relaxation frequency but well below the conduction band width. The linearity of the electronic spectrum over a wide range of energies, which is a general features of these materials, leads to an anomalously high dielectric constant of the 3D semiconductors, and when they are doped, to a logarithmic singularity in the real part of the dielectric function at the absorption threshold. For graphene, the optical transmission is determined by the fine structure constant of quantum electrodynamics, and is independent of any properties of graphene, itself.
A 700-2800MHz Switchless Class-G Power Amplifier with Two-Quadrant Modulation for Back-off Efficiency Improvement

In this paper, a novel Switchless class-G (SLCG) Power Amplifier (PA) is proposed to improve back-off efficiency by allowing transistors operate across the 1st and 3rd quadrants of the I-V curves. Based on the technique, a 700-2800MHz demonstration PA is developed using commercial GaN HEMTs, exhibiting 43dBm saturated power and 45-57.5% −6dB back-off efficiency. To the best of our knowledge, this is the state-of-the-art performance of multi-octave highly efficient PAs.
The Square Kilometre Array project update

The Square Kilometre Array (SKA) project will build the largest radio telescope in the world with telescope facilities deployed in Australia and South Africa covering a frequency range from 50 MHz to 15 GHz (initial phase). The approval for the start of construction from its governing Council occurred in June 2021. This paper reviews the key science drivers and the outline observatory organization, design summary and site locations. We note the current progress and status of the SKA construction and projected schedule, noting the challenges within the current global climate.
Misclassification Penalties in Associative Classification

— The data mining is a method to find small amount of useful data from very large amount of data. There are two classical techniques in the field of data mining namely associative rule mining and classical rule mining. In order to have advantages of both a new approach was developed by combining both the methods. This new approach is called associative classification. It has given significant improvement like better accuracy over the conventional classification system e.g. C4.5. There are many methods developed for the associative classification in the due course like CBA, CMAR, CPAR, Hyper Heuristic, and CARGBA. However the effect of the misclassification penalties on the classification has not been examined. Out of all the available methods in associative classification the CPAR has the highest accuracy. This work is a study of effect of the misclassification penalties on the classification process of the associative classification method CPAR. From the many methods available bagging is selected for the misclassification penalty effect. A new approach namely M-CPPAR (Modified CPAR) is proposed in this work. After the study it can be concluded that if misclassification penalty effect is considered during the classification process the accuracy of the CPAR can be improved.
Reproductive health in transgender and gender diverse individuals: A narrative review to guide clinical care and international guidelines

Abstract Background Hormonal treatments and surgical interventions practiced with the aim to affirm gender identity in transgender and gender diverse patients may impact their future reproductive ability, family building, and family planning options. Whereas it is recommended by international guidelines to discuss the potential risks of infertility and to present fertility preservation (FP) options to transgender individuals and their families prior to initiating any of these treatments, many barriers still remain. Further, transgender and gender diverse individuals often experience barriers to accessing contraception, abortion, pre-conception care, and comprehensive perinatal care. Aims In this review we summarize the current literature on reproductive healthcare issues reported in transgender people including fertility issues, fertility preservation (FP), contraception, pregnancy and lactation and perinatal health. Methods A narrative literature search of major databases (Pubmed, Medline, PsycInfo, Google Scholar, Web of Science) was conducted. Given the paucity and heterogeneity of studies, summative review tactics were not available. The literature was critically reviewed by international experts in the field with focus on the impact of gender-affirming medical interventions on future fertility, current FP options and reproductive health issues in transgender people. Results The current literature supports that transgender and gender diverse individuals may wish to have genetically related children in the future, rendering the issue of FP relevant to this patient group. The cryopreservation of mature gametes is an efficacious option for FP for post-pubertal adolescents and adults. It is recommended to discuss these options at time of planning for gender-affirming hormonal therapy (GAHT) or engaging with other gender-affirming procedures that can limit future fertility. Discontinuation of GAHT may allow individuals to undergo FP later, but data are limited and there is the concern of symptoms and consequences of stopping GAHT. For pre-pubertal and early pubertal children, FP options are limited to the cryopreservation of gonadal tissue. At present the tissue can become functional only after re-transplantation, which might be undesirable by transgender individuals in the future. Preconception counseling, prenatal surveillance, perinatal support, contraceptive, and pregnancy termination related healthcare need to be meaningfully adapted for this patient population, and many knowledge gaps remain. Discussion Specialized FP reproductive healthcare for transgender and gender diverse individuals is in early evolution. Research should be conducted to examine effects of medical interventions on fertility, timing of FP, gamete preservation and outcome of the fertility treatments. Strategies to inform and educate transgender and gender diverse patients can lead to optimization of reproductive care and counseling and decision making of FP for this population.
The Human Capital Is A Key Factor In Import Substitution Under Sanctions

With the start of the military operation on the territory of Ukraine, anti-Russian sanctions have increased significantly. As early as February 24, 2022, the United States and its NATO allies announced new, stronger sanctions against Russia, its political leadership, oligarchs, and sectors of the economy. According to some estimates, almost half of the gold and foreign exchange (international) reserves were frozen. This deprived our country of many opportunities, including buying imported technologies, components, equipment and other goods for petrodollars. According to Washington, the new restrictions will more than halve Russian imports of high-tech products. The most active work on the implementation of programs and plans for import substitution them during the crises of 1998-1999, the global financial and economic crisis of 2008-2009, as well as in 2014-2016 after the introduction of anti-Russian sanctions. The authors showed that every time, as soon as the crises passed, and the price of oil and gas exports grew, the work on import substitution slowed down. In the context of tougher sanctions, the import of high-tech goods becomes almost impossible, so ministries and departments, state corporations, small and medium-sized businesses have again turned their attention to human capital, without the knowledge and competencies of which work on import substitution is impossible. The authors show the importance of human capital in the implementation of state import substitution programs under sanctions, emphasize the need for a real transition of the Russian economy from a raw-material to an innovative development path, and the introduction of a knowledge economy.
Associations between Serum Saturated Fatty Acids Content and Mortality in Dialysis Patients

Background: Cardiovascular mortality in dialysis population remains very high. Saturated fatty acids (SFA) contribute to atherosclerosis and to cardiovascular risk. Aim: The aim of this study was to evaluate the relationship between mortality in dialysis patients and the serum SFA content. Methods: Survival of 54 patients on dialysis was assessed. A total of 21 SFA from patients’ sera were measured by gas chromatography-mass spectrometry (GC-MS). Diet was assessed by food frequency questionnaire FFQ-6. The SFA content is presented as fatty acid proportion (%). Results: During the observation time (median 66 months) 22 patients died. There was a significant relationship between elevated SFA (above SFA mean) and mortality (log-rank 3.13; p = 0.0017). Moreover, patients who ingested foods rich in SFA, according to FFQ-6, had a higher mortality risk (log-rank 2.24; p = 0.03). The hazard ratio for mortality associated with increased SFA content equalled 4.47 (1.63–12.26). Addition of age and inflammation (hsCRP > 5 mg/L) into the Cox model did not modify this relationship. However, SFA content turned out to be significantly higher in patients with diabetes mellitus and cardiovascular disease, as compared to patients free from these co-morbidities. Their addition to the model attenuated the relationship between SFA and mortality, making it statistically insignificant. Conclusion: The serum content of SFA turned out to be a strong predictor of mortality in dialysis patients. However, given the significant associations between SFA, DM, and CVD, interventional studies with controlled SFA intake are needed to evaluate the causal links between SFA, co-morbidities and survival.
The Macroeconomic Determinants of Moroccan Corporate Bankruptcy

The absence of prior research in Morocco using the macroeconomic explanatory approach to bankruptcy, combined with the new peak in business failure in Morocco in 2021, motivates the need to explore the influence of macroeconomic indicators on the Moroccan bankruptcy rate. Therefore, the objective of this article is to examine the impact of these indicators on the Moroccan bankruptcy rate using multiple regression models over the period 2010-2021. The obtained results show that new firm creation and the interest rate positively and significantly affect the bankruptcy rate, while Euro and Dollar exchange rates have negative and significant effects on the dependent variable. The results suggest guidelines for policymakers and practitioners to refine the economic conditions in order to achieve a low bankruptcy rate in Morocco.
The Impact on Review Credibility and Trust from Review Solicitation on E-commerce

It has widely known that Online Customer Reviews have become an integral part of customer decision-making before making online purchases. Sellers and platforms alike develop a strategy to shape reviews profitably under the pretext of increasing sales. Review Solicitation has been used to increase review volume and review valance in the online review platform. Interestingly, while much research is conducted to find the impact of review solicitation on the characteristics of reviews generated, there is not much research done on the perception of customers who have experienced the review solicitation strategy that might pose a problem for parties involved. This study aims to fill the gap of previous studies in finding the answer to what happens to the review credibility and Trust from the customer perspective after review solicitation. The research used Sequential Equation Modeling (SEM) process from 112 data obtained using Purposive sampling with online respondents around the Jabodetabek area in Indonesia in March 2022. There are five variables (Review Solicitation Awareness, Review Solicitation experience, Review Credibility, Trust, and Purchase Intention) with four hypotheses in this study. This study found that customers' Reviews Solicitation Experience significantly influences review credibility. At the same time, customers' Reviews of Solicitation Awareness significantly influence Trust. Then, Trust significantly influences Purchase Intention.
Learned Intrinsic Auto-Calibration From Fundamental Matrices

Auto-calibration that relies on unconstrained image content and epipolar relationships is necessary in online operations, especially when internal calibration parameters such as focal length can vary. In contrast, traditional calibration relies on a checkerboard and other scene information and are typically conducted offline. Unfortunately, auto-calibration may not always converge when solved traditionally in an iterative optimization formalism. We propose to solve for the intrinsic calibration parameters using a neural network that is trained on a synthetic Unity dataset that we created. We demonstrate our results on both synthetic and real data to validate the generalizability of our neural network model, which outperforms traditional methods by 2% to 30%, and outperforms recent deep learning approaches by a factor of 2 to 4 times.
Contingent Responsiveness in Digital Storybooks: Effects on Children's Comprehension and the Role of Individual Differences in Attention

Experiences of contingent interactions like referential cues (e.g., caregivers pointing to relevant text and pictures) during shared book reading predict better reading and language outcomes (Landry, & Smith, 2007). However, it is unclear whether contingent responsiveness in a digital book could provide similar support for children in the absence of contingent feedback from an adult. The effects on story comprehension using an interactive book with content-related animations that activated contingent on children’s vocalizations were investigated, with a focus on whether the interactive book might be especially useful for children with less developed attentional control. The present study used a within-subject design with data from 69 preschool-aged children. The use of the interactive book exhibited significantly increased comprehension, and was also found to be especially useful for children with less attentional control. Importantly, the associations between attention and comprehension gains were not entirely due to variance shared with verbal ability.
A co-operative game theoretical strategy of Vendor and Buyer in an EPQ model of deteriorating items under trade credit policy

In the current decade, studying economic production quantity model using Game theoretical approach is more adequate to many researchers. Here we have considered three level supply chains such as Vendor, Buyer and Customer where a game is considered between Vendor and Buyer to find the optimal strategy. The main objective of both the players is to minimize their costs. During game, both of them are agree to find the optimal strategy by using co-operative manner. So, in this research article we have considered co-operative game between Vendor and Buyer. Concept of Delay in payment is used in this study to make the current model more realistic. In co-operative game, both of the players are agree to adopt optimality condition in each respect. Non-linear optimization technique -GRG (LINGO-19.0) is used to solve the mathematical model and some mathematical data are taken to validate the model. Sensitivity analysis of parameters on the solutions is conducted and presented in both tabular and graphical form.
Metronidazole for Treatment of Clostridioides difficile Infections in Brazil: A Single-Center Experience and Risk Factors for Mortality

We describe the epidemiology of C. difficile infections (CDIs) focused on treatment and analyze the risk factors for mortality. This is a retrospective cohort study of CDI cases with a positive A/B toxin in the stool in 2017–2018. We analyzed the demographic data, comorbidities, previous use of antimicrobials, severity, and treatment, and we performed multivariate analysis to predict the 30-days mortality. We analyzed 84 patients, 37 (44%) of which were male, where the mean age was 68.1 years and 83 (99%) had comorbidities. The percentage of positivity of the A/B toxin was 11.6%, and the overall incidence density was 1.78/10,000 patient days. Among the patients, 65.4% had previous use of antimicrobials, with third-generation cephalosporins being the class most prescribed, and 22.6% of cases were severe. Treatment was prescribed for 70 (83.3%) patients, and there was no statistically significant difference between the initial treatment with metronidazole and vancomycin even in severe cases. The 30-day mortality was 7/84 (8.3%), and the risk factors associated with mortality was a severity score ≥2 (OR: 6.0; CI: 1.15–31.1; p = 0.03). In this cohort of CDI-affected patients with comorbidities and cancer, metronidazole was shown to be a good option for treating CDIs, and the severity score was the only independent risk factor for death.
Planning of Photovoltaic (PV) Type Solar Power Plant as An Alternative Energy of the Future in Indonesia

Indonesia receives a lot of sunlight throughout the year. This then causes large profits to be obtained with the Development of a Solar Power Plant Planning (PLTS) that uses a photovoltaic (PV) system. This research then aims to look at how the use of PV systems as a solar power generation system becomes alternative energy in the future. The approach used in this research is a qualitative approach through a literature study of various previous studies and studies that discuss the planning of PV-type solar PV in Indonesia. This study found that the PLN network can be integrated and benefit PLTS that are on-grid and use solar modules. Then various public facilities with a flat surface and wide enough can be a good enough place to be a PV type PV mini-grid. Then the ratio of power that PLN has issued for PJU is 76.66%, while the ratio of solar panels is 23.3%. Unfortunately, the main ingredients for making PV mini-grid are still imported, which makes it challenging to develop PV-type PV mini-grid.