Miracle-dz/UniFAR-FTUs huggingface dataset:
A Quick, Compact, Two-Sample Dispersion Test

The common “F test” for testing the equality of two population variances is very sensitive to the normality assumption, yet many introductory statistics books do not stress this sensitivity. Several alternative dispersion tests have been developed that do not assume normality, but these are rarely discussed other than in nonparametric statistics texts. Additionally, these tests generally require tables of critical values or software to calculate p values. We propose a simple graphical procedure, requiring no tables or software, that compares absolute deviations of one sample to another. With equal sample sizes, if one sample has the five largest absolute deviations, we conclude that its population has greater dispersion. We believe the simplicity of this test makes it a viable alternative to the often misleading F test and to other tests.
Potential use of bacterial pigments as anticancer drugs and female reproductive toxicity: a review

Abstract Natural bioactive compounds obtained from microorganisms, have awakened particular interest in the industry nowadays. This attention comes when natural resources depletion is pronounced, and the acquisition of both new plant origin resources and bioactive products, represents a challenge for the next generations. In this sense, prospecting for large-scale production and use of bacterial pigments is a necessary strategy for the development of novel products. A wide variety of properties have been attributed to these substances and, among them, their therapeutic potential against important diseases, such as cancer. There is consensus that available chemotherapy protocols are known to detrimentally affect cancer patients fertility. Hence, considerable part of the deleterious effects of chemotherapy is related to the drugs cytotoxicity, which, in addition to cancer cells, also affect normal cells. Therefore, the intrinsic properties of bacterial pigments associated with low cytotoxicity and relevant cell selectivity, certified them as potential anticancer drugs. However, little information is available about reproductive toxicity of these new and promising compounds. Thus, the present review aims to address the main bacterial pigments, their potential uses as anticancer drugs and their possible toxic effects, especially on the female gonad.
Multifunctional Nanocarriers Based on Chitosan Oligomers and Graphitic Carbon Nitride Assembly

In this study, a graphitic carbon nitride and chitosan oligomers (g-C3N4–COS) nanocarrier assembly, which was obtained by cross-linking with methacrylic anhydride (MA), was synthesized and characterized. Its characterization was carried out using infrared spectroscopy, elemental and thermal analyses, and transmission electron microscopy. The new nanocarriers (NCs), with an average particle size of 85 nm in diameter and a 0.25 dispersity index, showed photocatalytic activity (associated with the g-C3N4 moiety), susceptibility to enzymatic degradation (due to the presence of the COS moiety), and high encapsulation and moderate-high release efficiencies (>95% and >74%, respectively). As a proof of concept, the visible-light-driven photocatalytic activity of the NCs was tested for rhodamine B degradation and the reduction of uranium(VI) to uranium(IV). Regarding the potential of the nanocarriers for the encapsulation and delivery of bioactive products for crop protection, NCs loaded with Rubia tinctorum extracts were investigated in vitro against three Vitis vinifera phytopathogens (viz. Neofusicoccum parvum, Diplodia seriata, and Xylophilus ampelinus), obtaining minimum inhibitory concentration values of 750, 250, and 187.5 µg·mL−1, respectively. Their antifungal activity was further tested in vivo as a pruning wound protection product in young ‘Tempranillo’ grapevine plants that were artificially infected with the two aforementioned species of the family Botryosphaeriaceae, finding a significant reduction of the necrosis lengths in the inner woody tissues. Therefore, g-C3N4-MA-COS NCs may be put forward as a multifunctional platform for environmental and agrochemical delivery applications.
Ameliorative effects of omega-lycotoxin-Gsp2671e purified from the spider venom of Lycosa praegrandis on memory deficits of glutamate-induced excitotoxicity rat model

Memory impairment is one of the main complications of Alzheimer’s disease (AD). This condition can be induced by hyper-stimulation of N-Methyl-D-aspartate receptors (NMDARs) of glutamate in the hippocampus, which ends up to pyramidal neurons determination. The release of neurotransmitters relies on voltage-gated calcium channels (VGCCs) such as P/Q-types. Omega-lycotoxin-Gsp2671e (OLG1e) is a P/Q-type VGCC modulator with high affinity and selectivity. This bio-active small protein was purified and identified from the Lycosa praegrandis venom. The effect of this state-dependent low molecular weight P/Q-type calcium modulator on rats was investigated via glutamate-induced excitotoxicity by N-Methyl-D-aspartate. Also, Electrophysiological amplitude of field excitatory postsynaptic potentials (fEPSPs) in the input–output and Long-term potentiation (LTP) curves were recorded in mossy fiber and the amount of synaptophysin (SYN), synaptosomal-associated protein, 25 kDa (SNAP-25), and synaptotagmin 1(SYT1) genes expression were measured using Real-time PCR technique for synaptic quantification. The outcomes of the current study suggest that OLG1e as a P/Q-type VGCC modulator has an ameliorative effect on excitotoxicity-induced memory defects and prevents the impairment of pyramidal neurons in the rat hippocampus.
Effect of Heating on Turbulent Density Fluctuations and Noise Generation From High Speed Jets

Heated jets in a wide range of temperature ratios (TR), and acoustic Mach numbers (Ma) were investigated experimentally using far field microphones and a molecular Rayleigh scattering technique. The latter provided density fluctuations measurements. Two sets of operating conditions were considered: (1) TR was varied between 0.84 and 2.7 while Ma was fixed at 0.9; (2) Ma was varied between 0.6 and 1.48, while TR was fixed at 2.27. The implementation of the molecular Rayleigh scattering technique required dust removal and usage of a hydrogen combustor to avoid soot particles. Time averaged density measurements in the first set of data showed differences in the peripheral density shear layers between the unheated and heated jets. The nozzle exit shear layer showed increased turbulence level with increased plume temperature. Nevertheless, further downstream the density fluctuations spectra are found to be nearly identical for all Mach number and temperature ratio conditions. To determine noise sources a correlation study between plume density fluctuations and far field sound pressure fluctuations was conducted. For all jets the core region beyond the end of the potential flow was found to be the strongest noise source. Except for an isothermal jet, the correlations did not differ significantly with increasing temperature ratio. The isothermal jet created little density fluctuations. Although the far field noise from this jet did not show any exceptional trend, the flow-sound correlations were very low. This indicated that the density fluctuations only acted as a "tracer parameter" for the noise sources.
The Eyes Have It: How Critical are Ophthalmic Findings to the Diagnosis of Pediatric Abusive Head Trauma?

ABSTRACT Pediatric abusive head trauma (AHT), still colloquially known as shaken baby syndrome, is a leading cause of morbidity and mortality among infants. Controversy has grown surrounding this diagnosis, and the specificity of the clinical findings—subdural hemorrhage, cerebral edema, and retinal hemorrhages—has been challenged. A literature search of peer reviewed publications on PubMed pertaining to the history, clinical, and pathologic features of AHT was conducted using the terms “shaken baby syndrome,” “non-accidental trauma,” “abusive head trauma,” “inflicted traumatic brain injury,” “shaken impact syndrome,” and “whiplash shaken infant syndrome. ” Focus was placed on articles discussing ophthalmic findings in AHT. Retinal hemorrhages—particularly those that are too numerous to count, occurring in all layers of the retina (preretinal, intraretinal, subretinal), covering the peripheral pole and extending to the ora serrata, and accompanied by retinoschisis and other ocular/periocular hemorrhages—are highly suggestive of AHT, particularly in the absence of otherwise explained massive accidental trauma. Although the diagnosis has grown in controversy in recent years, AHT has well-documented clinical and pathologic findings across a large number of studies.
Chaotifying a stable linear controllable system by single input state feedback

In this paper, an approach for chaotifying a stable controllable linear system via single input state-feedback is presented. The overflow function of the system states is designed as the feedback controller, which can make the fixed point of the closed-loop system to be a snap-back repeller, thereby yields chaotic dynamics. Based on the Marotto theorem, it proves theoretically that the closed-loop system is chaotic in the sense of Li and Yorke. Finally, the simulation results are used to illustrate the effectiveness of the proposed method.
PERKEMBANGAN PENELITIAN PANCASILA: SEBUAH TINJAUAN BIBLIOMETRIK

Kajian ini berupaya melihat perkembangan penelitian dengan topik Pancasila. Kajian ini bertujuan untuk mengetahui kuantitas publikasi internasional untuk topik Pancasila dan peta perkembangan publikasi internasional di bidang Pancasila berdasarkan kata kunci Pancasila. Pengumpulan data dilakukan dengan metode penelusuran indeks publikasi internasional Publish or Perish dengan opsi Google Scholar melalui kata kunci Pancasila dan kategorisasi article title, abstract, keywords dalam rentang tahun 2017-2022. Data yang terekam berupa jumlah publikasi internasional setiap tahun, dan jurnal yang memuat artikel Pancasila. Adapun tren pemetaannya digambarkan dengan aplikasi VosViewer . Hasil penelitian menunjukkan bahwa perkembangan penelitian Pancasila dalam rentang waktu 2017-2022 masih berada pada topik-topik penelitian yang cenderung general dan monoton seperti topik tentang hukum, pendidikan, karakter dan perilaku. Intensitas penelitian paling banyak dilakukan pada tahun 2020. Adapun yang berkaitan dengan tren topik penelitian yang masih jarang dilakukan dan menjadi rekomendasi untuk penelitian selanjutnya adalah topik khusus seperti radikalisme .
Classification of Macromolecules Based on Amino Acid Sequences Using Deep Learning

The classification of amino acids and their sequence analysis plays a vital role in life sciences and is a challenging task. Deep learning models have well-established frameworks for solving a broad spectrum of complex learning problems compared to traditional machine learning techniques. This article uses and compares state-of-the-art deep learning models like Convolution Neural Networks (CNNs), Long Short-Term Memory (LSTM), and Gated Recurrent Units (GRU) to solve macromolecule classification problems using amino acid sequences. The CNN extracts features from amino acid sequences, which are treated as vectors with the use of word embedding. These vectors are fed to the above-mentioned models to train robust classifiers. The results show that word2vec as embedding combined with VGG-16 performs better than LSTM and GRU. The proposed approach gets an error rate of 1.5%.
Research on convolutional neural network method for transmission line abnormal sound identification

At present, most of the hidden troubles in transmission lines are detected by image and video technology, however, there are too many monitoring targets, due to the influence of weather changes and lighting, and other factors, it is difficult to accurately monitor the hidden troubles of transmission lines only by video images, this paper presents a convolutional neural network method to identify the abnormal sound in transmission lines. The audio data collected by the audio-visual acquisition device is processed by the convolutional neural network to identify the potential audio data, filter the non-potential audio data, and improve the speed of potential danger analysis. Through the training and testing of sound multi-label classification and detection algorithm, the validity of the method is verified.
Influences of bus traffic loading on asphalt concrete rutting

ABSTRACT Permanent deformation is the primary failure mode for the asphalt concrete (AC) pavement in urban environment. It is mainly caused by a combination of heavy traffic load, low vehicle speed and channelised traffic. A rut prediction model would therefore be a valuable tool for planning maintenance scheduling and selecting an appropriate asphalt material. This study uses the PEDRO (Permanent deformation in asphalt concrete layers for roads) model to evaluate the rutting performance of flexible pavements in dedicated bus lanes and intersections in urban areas. For this purpose, three road sections along a bus lane in Malmö, Sweden, were selected. To achieve this, AC cores from the road sections were tested using a Shear Box Tester to characterise the asphalt mixtures. Traffic data such as axle load, tyre configuration, speed, and lateral wander distribution of vehicles, and climate data were measured for the selected sections. Field measurements were carried out to assess the structural conditions of the pavements and to measure transverse profiles. This study introduced a procedure for the evaluation and local calibration of the PEDRO rutting model. The results revealed that the prediction of the transverse profiles are generally in good agreement with the rut measurements.
The persistence length of polyelectrolyte chains

We present simulations of the basic model of weakly charged polyelectrolyte chains of variable intrinsic stiffness within the Debye-Hiickel approximation. For intrinsically flexible chains the persistence length L P shows a sublinear dependence on the screening length r D = 1/κ in strong contrast to all known analytical approaches which propose an effective exponent of either y = 2 or y = 1. The observed exponent y varies as a function of the system parameters. With increasing intrinsic stiffness the corresponding effective exponent y crosses over to values of up to 2 when the intrinsic persistence length L 0 exceeds the electrostatic one L e . We find a pronounced minimum of L P with increasing intrinsic stiffness due to a reduction of entropy. The concept of a unique persistence length is not applicable for these systems.
Research on Multi-Tag Propagation Clustering Method for Microblog Hot Topic Discovery

ABSTRACT In the context of the information explosion, the improvement of people’s living standards has enabled computers and mobile phones to enter the homes of thousands of ordinary people. While promoting the popularization of the Internet, it has also enabled Weibo, a platform for expressing their opinions. Has been rapidly developed. With the continuous development of Weibo, the current mainstream Weibo platforms include Sina Weibo, Tencent Weibo, NetEase Weibo and Sohu Weibo. Based on the idea of multi-label propagation, this paper comprehensively considers node similarity and node life value and proposes the TCMLPA algorithm for hot word clustering, which can effectively improve the accuracy of public opinion recommendation.
Seyfert galaxy narrow-line regions. I - Observations of forbidden O III lambda 5007

High-resolution (23 km/s) spectra of the forbidden O III emission line at 500.7 nm from the nuclear regions of 32 Seyfert galaxies and low-redshift QSOs have been obtained at the Smithsonian Institution/University of Arizona Multiple Mirror Telescope. The properties of the data are summarized by a group of measures which efficiently describe the entire line profiles, are stable in the presence of noise, and have easily visualized geometric meaning. The distributions of line profile measures are shown. In particular, typical forbidden O III FWHM values of 200-520 km/s (mean + or - 1 sigma) and a highly significant tendency for the lines to fall off more slowly on the blue than on the red side of the peak have been found, in agreement with previous work. Using galaxian system velocities obtained from absorption-line measurements, the distribution of differences between forbidden O III emission-line velocities and galaxian system velocities has been determined; in disagreement with previous work, this distribution has been found to be consistent with symmetry about zero difference velocity. 47 references.
Student English Teachers' Vantage Points of the Digital Short Stories They Designed for Young Learners

Literature review unveils the need for exploring what student teachers of English think about their experiences of preparing digital stories for young learners, and investigating their perceptions with regard to the use of digital storytelling in the teaching of English to young learners. This instrumental case study aims to unpack pre-service English teachers' conceptions of their experiences of creating digital short stories and incorporating them into young English language learner classes. The qualitative data collected through conducting a qualitative survey and an in-depth interview with Turkish student teachers of English following their experiences of designing digital short stories for young learners was analysed, performing inductive content analysis. The results demonstrated the student English teachers held strong beliefs in the beneficial effect of digital short stories on fostering young English language learners' learning, and the process of developing digital short stories was not extremely challenging and furthered their technological competence.
Far-infrared observations of the Carina I and II H II regions

Far-infrared (35-175 microns) mapping and photometry are presented of the Carina I and II H II regions in the Carina Nebula (NGC 3372). The far-infrared source associated with Carina I has a half-power width of 2.7 arcmin and has no compact high-surface-brightness condensations, unlike many northern H II regions such as W51 or W49. The peak emission region is offset from the radio continuum peak in the direction of a dust lane to the west. It is proposed that the H II regions and far-IR source are both powered by the O-star cluster Tr 14 about 4 arcmin to the east. The H II region then represents an ionization front at the boundary of the dense cloud west of Tr 14, and the far-infrared emission is due to thermal radiation from the heated dust in the dark cloud. A similar model may also be applicable to the Carina II region.
Research on dynamic capability model of electric power engineering enterprises for international market

In order to improve the sustainable competitive advantage of electric power engineering enterprises under the severe global economic situation, the enhancement of enterprise dynamic capabilities has become an important issue facing electric power engineering enterprises. In this paper, we adopt structural equation modeling to conduct an in-depth study on issues related to dynamic capabilities of electric power engineering enterprises, deconstruct dynamic capabilities into dual capabilities of opportunity exploration and opportunity development, and divide them into five capability dimensions of environment perception, resource integration, network relationship, organizational learning and organizational flexibility, set up questionnaires and conduct industry data analysis. This study can provide a basis for the theoretical study of dual dynamic capabilities of electric power engineering enterprises, and at the same time help various international electric power engineering enterprises to combine different market demands and internal and external influencing factors such as their own development status in the actual process, clarify the direction of enterprise dynamic capabilities improvement and adjust the content of enterprise dynamic capabilities construction, so as to enhance the sustainable competitive advantage of enterprises.
Recent progress in the development and understanding of SUPG methods with special reference to the compressible Euler and Navier-Stokes equations†‡

SUPG methods were originally developed for the scalar advection-diffusion equation and the incompressible Navier-Stokes equations. In the last few years successful extensions have been made to symmetric advective-diffusive systems and, in particular, the compressible Euler and Navier-Stokes equations. New procedures have been introduced to improve resolution of discontinuities and thin layers. In this paper a brief overview is presented of recent progress in the development and understanding of SUPG methods.
Wide-bandwidth, wide-beamwidth, high-resolution, millimeter-wave imaging for concealed weapon detection

Active millimeter-wave imaging is currently being used for personnel screening at airports and other high-security facilities. The cylindrical imaging techniques used in the deployed systems are based on licensed technology developed at the Pacific Northwest National Laboratory. The cylindrical and a related planar imaging technique form three-dimensional images by scanning a diverging beam swept frequency transceiver over a two-dimensional aperture and mathematically focusing or reconstructing the data into three-dimensional images of the person being screened. The resolution, clothing penetration, and image illumination quality obtained with these techniques can be significantly enhanced through the selection of the aperture size, antenna beamwidth, center frequency, and bandwidth. The lateral resolution can be improved by increasing the center frequency, or it can be increased with a larger antenna beamwidth. The wide beamwidth approach can significantly improve illumination quality relative to a higher frequency system. Additionally, a wide antenna beamwidth allows for operation at a lower center frequency resulting in less scattering and attenuation from the clothing. The depth resolution of the system can be improved by increasing the bandwidth. Utilization of extremely wide bandwidths of up to 30 GHz can result in depth resolution as fine as 5 mm. This wider bandwidth operation may allow for improved detection techniques based on high range resolution. In this paper, the results of an extensive imaging study that explored the advantages of using extremely wide beamwidth and bandwidth are presented, primarily for 10-40 GHz frequency band.
Riboflavin Intake Inversely Associated with Cardiovascular-Disease Mortality and Interacting with Folate Intake: Findings from the National Health and Nutrition Examination Survey (NHANES) 2005–2016

The association between intakes of riboflavin and mortality has not been examined intensively in general populations. In this study, 10,480 adults in the 2005–2016 National Health and Nutrition Examination Survey (NHANES) were followed-up until 2019 for their vital status. Riboflavin and folate were assessed by two-day 24 h recall. The date and cause of death were obtained from the US Mortality Registry. The risks of all-cause mortality and cardiovascular disease (CVD) mortality were investigated using a Cox regression analysis. During a mean of 8.5 years follow-up, there were 1214 deaths registered (including 373 deaths from CVD and 302 from cancer). Compared to low level (quartile 1, Q1) of riboflavin intake, the hazard ratios (HRs) (95% confidence interval (CI)) for high level (quartile 4, Q4) were 0.53 (0.31–0.90) for CVD mortality and 0.62 (0.48–0.81) for all-cause mortality. The inverse association between riboflavin intake and CVD mortality was only significant among those with a high intake of folate (p for interaction 0.045). Those with a high folate intake (Q4) and low intake of riboflavin (Q1) had the highest risk of CVD mortality (HR 4.38, 95% CI 1.79–10.72), as compared with a high intake of both riboflavin and folate. In conclusion, riboflavin intake was inversely associated with all-cause mortality and CVD mortality, and the association was modified by folate intake.