Miracle-dz/UniFAR-FTUs huggingface dataset:
Capital market reaction to the announcement of PSBB and PPKM policies on consumption industry companies listed on the IDX (Study on food and beverages sector companies)

This article presents to find out the market's reaction to abnormal return and trading volume activity indicators to the PSBB and PPKM policies. The policy is still a hot topic of discussion among researchers, making many studies carried out since 2021. This study aims to find out and analyze the differences in Average Abnormal returns and trading volume activity on shares of consumption companies before and during the PSBB and PPKM policies. This study used a quantitative descriptive method using secondary data with a descriptive statistical test. It continued with a classical assumption test using the paired sample T-test method. Several conclusions can be drawn that there is no significant difference in abnormal returns before and during the PSBB policy and PPKM policy; there are significant differences in stock trading volumes before and during the PPKM policy. The limitation of this study is that this study uses short window periods that are unlikely to be able to capture events as a whole.
Occurrence of Aflatoxin M1 in Three Types of Milk from Xinjiang, China, and the Risk of Exposure for Milk Consumers in Different Age-Sex Groups

Aflatoxin M1 (AFM1), a group 1 carcinogen, is a risk factor to be monitored in milk. This study aimed to investigate the occurrence of AFM1 in milk in Xinjiang, China, and to assess the risk of exposure for milk consumers in different age-sex groups. A total of 259 milk samples including pasteurized milk (93 samples), extended-shelf-life (ESL) milk (96), and raw donkey milk (70) were collected in Xinjiang from January to March in 2022. The AFM1 content of the milk samples was detected using a validated ELISA method. Of the 259 total samples analyzed for AFM1, 84 (32.4%) samples were contaminated at levels greater than the detection limit of 5 ng/L, with the maximum level of 16.5 ng/L. The positive rates of AFM1 in pasteurized milk and ESL milk were 43.0% (n = 40) and 45.8% (n = 44), respectively, and AFM1 was undetectable in donkey milk. The estimated daily intakes of AFM1 in each age group were lower than the hazard limits and were similar between male and female milk consumers. Therefore, the AFM1 contamination of milk in Xinjiang is low but still needs to be continuously monitored considering that children are susceptible to AFM1.
A New Method for the Singularity Analysis of Simple Six-link Manipulators

This paper presents a new method for identifying conditions governing all singular configurations of simple six-link ma nipulators whose inverse kinematic position problems have closed-form solutions. The method is developed based on the concepts of service sphere, free service region, and dextrous wrist. For a simple six-link manipulator, we identify its singular state with finite internal degrees of freedom by using the conditions that cause the manipulator's inverse solutions to be indeterminate. Meanwhile its singular state with infini tesimal internal degrees of freedom can be identified by examining the determinant of the Jacobion of the first three links. This simple and straightforward method is illustrated by three examples.
Judicializing Environmental Politics? China's Procurator-led Public Interest Litigation against the Government

Abstract Scholars consider deficient local accountability mechanisms a key shortcoming of China's response to environmental issues. Through empirical analysis of the new procurator-led public interest litigation (PIL) system, this study examines whether – and to what extent – this shortcoming can be remedied by empowering the juridical institutions. It concludes that thanks to the procuratorates’ political insider status, relative autonomy from local politics and extensive resources, procurators have generally found ways to maintain a delicate balance between holding executive agencies environmentally accountable and managing local governments’ resistance to the PIL system. However, reliance on top-down political support may ultimately hinder the expansion and stability of the procuratorial PIL system.
Magnetic extraction of black hole rotational energy: Method and results of general relativistic magnetohydrodynamic simulations in Kerr space-time

We present the complete numerical method of general relativistic magnetohydrodynamic simulations in Kerr space-time, and then apply those techniques to the basic astrophysical problem of activity near a Kerr black hole immersed in a plasma with a large-scale magnetic field. Our numerical results show that a torsional Alfven wave is generated in the ergosphere of the Kerr black hole. This wave propagates outward along the magnetic field lines, extracting rotational energy from the plasma in the ergosphere. If the magnetic field is strong enough, the plasma energy in the ergosphere rapidly decreases and eventually becomes negative. When this negative energy plasma is swallowed by the black hole, the total energy of the black hole decreases, spinning it down. This energy extraction mechanism is similar to the ``Penrose process,'' in which the negative energy also plays an important role. The difference between the two is the force that causes the redistribution of the angular momentum (which is necessary to produce the negative energy). In the Penrose process, elementary particle interactions cause the redistribution, while in the present case it is performed by magnetic tension.
The Trend of Arterial Carboxyhemoglobin in Non-smokers as a Prognostic Tool in Severe COVID-19 Patients: A Single-Centre Prospective Study

Introduction Carboxyhemoglobinemia is characterised by decreased oxygen delivery to tissues. In severe and critical coronavirus disease 2019 (COVID-19) illness with hypoxia, this can herald a grave and protracted course of illness. Patients with COVID-19 experience respiratory impairment, lowering the pace at which carbon monoxide (CO) is eliminated and raising the likelihood of carboxyhemoglobinemia. We set out to explore early arterial carboxyhemoglobin (COHb) and COVID-19 patient outcomes in non-smokers and its potential as a predictive tool for mortality. Methods Forty-five patients, non-smokers with severe/critical severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection requiring admission in a North Indian 1200-bedded tertiary care hospital, were recruited prospectively from October 2020 to March 2021. Arterial COHb% was evaluated with arterial blood gases using an analyser, which were taken at the time of admission and then every alternate day for the first 10 days. Carboxyhemoglobinemia was defined as COHb% more than 1%. The primary outcome was defined as the patient’s hospital outcome (survivor/non-survivor). Results Of the total 45 subjects, 51.1% (n=23) survived. Patients developed carboxyhemoglobinemia with an incidence of 51% during the course of their hospital stay. The mean ± SD of COHb% on admission was 1.0 ± 0.58 and 1.03 ± 0.8 in non-survivors and survivors, respectively (p=0.870). Maximal individual values of 5.3% and 6.1% were seen in survivors and non-survivors, respectively. On serial COHb measurement, non-survivors had significantly higher COHb% on days 6 and 10. No co-relation of COHb% with inflammatory markers was noted. Conclusion Arterial COHb levels in non-survivors were significantly higher than in survivors on days 6 and 10. Our study did not show a prognostic value of serial COHb measurement in patients with severe COVID-19. To establish COHb as a predictive marker in severely ill COVID-19 patients, additional research is required.
The use of technologies by university professors

The need to change from the traditional teaching model to the virtual one due to the social isolation leads to discussions about maximizing the use of Information and Communication Technologies (ICT) in education. This study aimed to evaluate the profile of the use of technologies in education and the acceptance and resistance to the use of ICT by faculty members in higher education in health during the COVID-19 pandemic. This study is a quantitative observational cross-sectional study, carried out from March to December 2020, with the universe of investigation being all the teachers linked to the undergraduate level courses in the health area of a higher education institution. The results show that of all the professionals surveyed (n = 248), 46.4% (n = 115) had already had access to knowledge or some training in ICT. When comparing data from before and during the pandemic, we observed a significant increase in the indicators of teachers' experience in remote classes (from 5.2% to 72.2%), knowledge about virtual learning resources (from 8,1% to 60.9%), consideration of the importance of knowledge about ICT (from 46.4% to 98.4%) and training in the area (from 19.4% to 55.7%), besides the reduction in the level of difficulty of teachers regarding the change from the traditional model to the technological one (from 26.6% to 3.6%). We conclude that most teachers improved their acceptance of ICT use during the pandemic. The transition from the traditional to the virtual model positively impacted this process.
The effect of administration of ethanol extract of talas kimpul stems ((Xanthosoma sagittifolium (l) schott)) on female wistar rats on hemoglobin level, erythrocyte level and birth weight of little wistar rats

Lack of nutritional intake of pregnant women is at risk of anemia and giving birth to low birth weight (LBW) babies. LBW is at risk of stunting. In 2018 the proportion of pregnant women experiencing anemia was 48.9%, stunting was 30.8%. This study aimed to determine the effect of giving ethanol extract of Kimpul taro stems ((Xanthosoma Sagittifolium (L.) Schott)) to female Wistar rats on hemoglobin levels, erythrocyte level, and birth weight of little rats. The Randomized Pretest Posttest Control Group Design. The population of this research is female Wistar rats aged 12-13 weeks, healthy, weight 170-180 g. Sampling technique: simple random sampling. The sample size of 25 was divided into five groups, namely Negative Control (KN), Positive Control (KP), Treatment 1 (P1), Treatment 2 (P2), and Treatment 3 (P3). The intervention duration is 4 weeks, using an oral sonde. Data analysis includes descriptive, bivariate, and multivariate, using computer assistance. The results: the average group pretest, hemoglobin levels 12.44-13.38 g/dL; erythrocyte levels 6.22 – 7.18 10^6/uL.
Multiplication-free iterative algorithm for LS problem

Many iterative techniques are available to solve normal equations appearing in the linear least-squares (LS) problem. However, because of multiplications and divisions they cannot be effectively implemented in real time. A novel multiplication-free and division-free iterative technique, the dichotomous co-ordinate descent algorithm, which guarantees convergence to the true solution under realistic assumptions, is proposed.
The Limits of Multiproduct Price Discrimination

We consider a multiproduct seller who has access to information about consumer preferences that he can use for second- and third-degree price discrimination. We characterize markets for which such information can lead to the efficient allocation with consumers obtaining the entire surplus gain relative to the profit-maximizing allocation without the additional information. This benchmark is achievable for all markets with a given set of consumer types if and only if it is optimal for the seller to offer only the best product in each market. Analogous results characterize when the “surplus triangle” of Bergemann, Brooks, and Morris (2015) is achievable. (JEL D11, D21, D42, D83)
Vertically segregated hybrid blends for photovoltaic devices with improved efficiency

Solution-processed photovoltaic devices based on blends of conjugated polymers and inorganic semiconductor tetrapods show high efficiencies due to the good electron transport perpendicular to the plane of the film. Here, we show that by using a high-boiling-point solvent, 1,2,4-trichlorobenzene, instead of chloroform for spin-coating, we can typically obtain a threefold increase in solar power conversion efficiency in devices based on CdSe tetrapods and the poly(p-phenylenvinylene) derivative OC1C10-PPV. The optimized devices show AM1.5 solar power conversion efficiencies of typically 2.1% with some devices as high as 2.8%. The results can be explained by the occurrence of vertical phase separation which leads to an optimal structure for charge collection. Evidence for this structure is obtained by environmental scanning electron microscopy, photocurrent action spectra measurements, time-resolved photoluminescence, and spectroscopic measurements of exciton dissociation and charge-carrier recombination.
Properties of Light Cementitious Composite Materials with Waste Wood Chips

The CO2 emissions from the cement industry and the production of waste wood chips are increasing with the rapid growth of the construction industry. In order to develop a green environmental protection building material with low thermal conductivity and up to standard mechanical properties, in this study, pine waste wood chips were mixed into cement-based materials as fine aggregate, and three different kinds of cementitious binders were used, including sulfur aluminate cement (SAC), ordinary Portland cement (OPC), and granulated blast furnace slag (GBFS), to prepare a recycled light cementitious composite material. The mechanical, thermal conductivity, shrinkage, water absorption, and pore structure of a wood chip light cementitious composite material were studied by changing the Ch/B (the mass ratio of wood chip to binder). The results showed that the strength, dry density, and thermal conductivity of the specimens decreased significantly with the increase in the Ch/B, while the shrinkage, water absorption, and pore size increased with the increase in the Ch/B. By comparing three different kinds of cementitious binders, the dry density of the material prepared with OPC was 942 kg/m3, the compressive strength of the material prepared with SAC was 13.5 MPa, and the thermal conductivity of the material prepared with slag was the lowest at 0.15 W/m/K. From the perspective of low-cost and low-carbon emissions, it was determined that the best way to prepare a light cementitious composite with waste wood chips is to use granulated blast furnace slag (GBFS) as the cementitious binder.
Resonant stimulated Brillouin interaction of opposed laser beams in a drifting plasma

Particle simulations and solutions of coupled mode equations are used to analyze the energy transfer between two equal-frequency, opposed laser beams resonantly interacting with ion acoustic waves in a plasma drifting at the sound speed. The simulations and analysis illustrate the dependence of the energy transfer and the ion wave dynamics on laser intensities and detuning, and the time dependence of the phenomena. The simulation results are in qualitative agreement with experimental observations in the NOVA laser facility [E. M. Campbell et al., Rev. Sci. Instrum. 57, 2101 (1986)] at the Lawrence Livermore National Laboratory. This work is part of a continuing examination of possible resonant crossed-beam interactions in flowing plasmas and their potential effects on the fusion performance of current and future laser-fusion experiments with multiple crossing beams, e.g., proposed experiments in the National Ignition Facility [National Tech. Info. Service Document Nos. DE95017671-DE95017673 and DE95017676.
Identification, classification, and expression profile analysis of heat shock transcription factor gene family in Salvia miltiorrhiza

In response to abiotic stresses, transcription factors are essential. Heat shock transcription factors (HSFs), which control gene expression, serve as essential regulators of plant growth, development, and stress response. As a model medicinal plant, Salvia miltiorrhiza is a crucial component in the treatment of cardiovascular illnesses. But throughout its growth cycle, S.miltiorrhiza is exposed to a series of abiotic challenges, including heat and drought. In this study, 35 HSF genes were identified based on genome sequencing of Salvia miltiorrhiza utilizing bioinformatics techniques. Additionally, 35 genes were classified into three groups by phylogeny and gene structural analysis, comprising 22 HSFA, 11 HSFB, and two HSFC. The distribution and sequence analysis of motif showed that SmHSFs were relatively conservative. In SmHSF genes, analysis of the promoter region revealed the presence of many cis-acting elements linked to stress, hormones, and growth and development, suggesting that these factors have regulatory roles. The majority of SmHSFs were expressed in response to heat and drought stress, according to combined transcriptome and real-time quantitative PCR (qRT-PCR) analyses. In conclusion, this study looked at the SmHSF gene family using genome-wide identification, evolutionary analysis, sequence characterization, and expression analysis. This research serves as a foundation for further investigations into the role of HSF genes and their molecular mechanisms in plant stress responses.
The Relationship Between Family Communications and School Adjustment Levels of Male Adolescents Aged 14-19

Purpose: This study was conducted to descriptive the relationship between family communication and school adjustment levels of male adolescents aged 14-19. Method: This descriptive and correlational study was conducted. The sample of the study consisted of 347 male students. 80% of the universe has been reached. Data were collected using an information form, a family evaluation scale to measure their intra-family communication and a school adjustment scale to measure their school adjustment level. Data were collected from male students by face-to-face survey method. Data were summarized as mean, standard deviation, number, and percentage. T test, One Way ANOVA, Pearson Correlation test were used in the analyses. Obtained results were tested at p
Nexus between remittance outflows and economic growth in GCC countries: the mediating role of financial development

ABSTRACT An important but underestimated area in international economics is the study of the impacts of remittance outflows and financial development on the economic growth of the remitting countries. This study explores how remittance outflows and financial development can affect the economic growth of the Gulf Cooperation Council (GCC) region using panel data from 1999 to 2018. The outcome reveals that remittance outflows are negatively related to economic growth. While financial development is effective in stimulating economic growth and is significant, the moderating role of financial development is growth-enhancing in the GCC region. Our findings are robust and insensitive to different econometric techniques. To benefit from immigrants, this research suggests a stimulus policy that GCC countries should facilitate foreign workers to settle sustainably and participate in investment activities, and increase consumption in their host country.
The Impact of Trade Credit on Firm Performance : A Case of Companies Listed in Pakistan Stock Exchange

Trade Credit used the firms to increase sale as well as profitability. This research conducted to explain the effect of trade credit on firm’s financial performance of companies listed in Pakistan Stock Exchange from the period of 2006 t0 2015. Data was collected from State Bank of Pakistan balance sheet analysis reports. We used ROA and Tobin’s Q as proxies of firm performance in wider perspective. This study expand explanatory variables by using control variables that is leverage, growth and size, have an effect on firm profitability.
Integrated method for constructive training of radial basis function networks

A method for improving the generalisation performance of constructive radial basis function (RBF) networks is proposed. Experiments using three image datasets are presented. The results show that the proposed method considerably improves performance of constructive RBF networks, outperforms multilayer perceptrons and AdaBoost and achieves comparable performance to support vector machines in these datasets.
Onboard pattern recognition for autonomous UAV landing

The civil security and supervision system AMFIS was developed at the Fraunhofer IOSB as a mobile support system using multiple UAVs for rescue forces in accidents or disasters. To gain a higher level of autonomy for these UAVs, different onboard process chains of image exploitation for tracking landmarks and of control technologies for UAV navigation were implemented and examined to achieve a redundant and reliable UAV precision landing. First experiments have allowed to validate the process chains and to develop a demonstration system for the tracking of landmarks in order to prevent and to minimize any confusion on landing.
Hairpin vortices in turbulent boundary layers

The present work addresses the question whether hairpin vortices are a dominant feature of near-wall turbulence and which role they play during transition. First, the parent-offspring mechanism is investigated in temporal simulations of a single hairpin vortex introduced in a mean shear flow corresponding to turbulent channels and boundary layers up to Reτ = 590. Using an eddy viscosity computed from resolved simulations, the effect of a turbulent background is also considered. Tracking the vortical structure downstream, it is found that secondary hairpins are created shortly after initialization. Thereafter, all rotational structures decay, whereas this effect is enforced in the presence of an eddy viscosity. In a second approach, a laminar boundary layer is tripped to transition by insertion of a regular pattern of hairpins by means of defined volumetric forces representing an ejection event. The idea is to create a synthetic turbulent boundary layer dominated by hairpin-like vortices. The flow for Reτ < 250 is analysed with respect to the lifetime of individual hairpin-like vortices. Both the temporal and spatial simulations demonstrate that the regeneration process is rather short-lived and may not sustain once a turbulent background has formed. From the transitional flow simulations, it is conjectured that the forest of hairpins reported in former DNS studies is an outer layer phenomenon not being connected to the onset of near-wall turbulence.
High velocity shear horizontal surface acoustic wave modes of interdigital transducer/(100) AlN/(111) diamond

In this research, shear horizontal (SH) surface acoustic wave (SAW) modes of interdigital transducer (IDT)/(100) AlN/(111) diamond propagated along the y-axis were theoretically analyzed and they exhibited excellent SH SAW properties. This is special for mode 0 where the K2 curve shows a maximum value (1.27%) at h/λ=0.28 and the velocity is 7496 m/s. The research results provide a predictable and theoretical basis for further application on high velocity SH SAW devices.
Optimization of Joint Power and Bandwidth Allocation in Multi-Spot-Beam Satellite Communication Systems

Multi-spot-beam technique has been widely applied in modern satellite communication systems. However, the satellite power and bandwidth resources in a multi-spot-beam satellite communication system are scarce and expensive; it is urgent to utilize the resources efficiently. To this end, dynamically allocating the power and bandwidth is an available way. This paper initially formulates the problem of resource joint allocation as a convex optimization problem, taking into account a compromise between the maximum total system capacity and the fairness among the spot beams. A joint bandwidth and power allocation iterative algorithm based on duality theory is then proposed to obtain the optimal solution of this optimization problem. Compared with the existing separate bandwidth or power optimal allocation algorithms, it is shown that the joint allocation algorithm improves both the total system capacity and the fairness among spot beams. Moreover, it is easy to be implemented in practice, as the computational complexity of the proposed algorithm is linear with the number of spot beams.