Miracle-dz/UniFAR-FTUs huggingface dataset:
ASSESSMENT OF LAND RESOURCES OF THE ZHAMBYL REGION AS THE BASIS OF RECREATION DEVELOPMENT AND FOOD SECURITY OF THE REPUBLIC OF KAZAKHSTAN

The article presents the scientific results of a study for the assessment of agricultural land in Zhambyl region of the Republic of Kazakhstan based on field studies in 2020-2021 and modern GIS technologies. The purpose of the study of the article is a comprehensive assessment of land resources used for agricultural production in Zhambyl region, identifying the prevailing areas of agricultural land, irrigated and rainfed pastures by administrative districts of the region. In the course of the scientific study, proven Kazakhstani methods of assessing the state of agricultural land, successfully applied to the arid agricultural regions of Kazakhstan, as well as methods of geographical and agricultural sciences for land analysis and calculation according to the structure of use, were used. Based on the statistical data of the Committee of Land Resources and preliminary regional plans, a map of the land fund of the Zhambyl region by land categories was created. The results of the study allow business entities, especially farms, to organize the rational use of irrigated lands, including pastures and hayfields, including the sustainability and profitability of agricultural production, as well as successfully develop agro-landscape tourism.
SPECKLE INTERFEROMETRY AND ORBITS OF “FAST” VISUAL BINARIES

Results of speckle observations at the 4.1 m SOAR telescope in 2012 (158 measures of 121 systems, 27 non-resolutions) are reported. The aim is to follow fast orbital motion of recently discovered or neglected close binaries and sub-systems. Here, eight previously known orbits are defined better, two more are completely revised, and five orbits are computed for the first time. Using differential photometry from Hipparcos or speckle and the standard relation between mass and absolute magnitude, the component's masses and dynamical parallaxes are estimated for all 15 systems with new or updated orbits. Two astrometric binaries HIP 54214 and 56245 are resolved here for the first time, another eight are measured. We highlight several unresolved pairs that may actually be single despite multiple historic measures, such as 104 Tau and f Pup AB. Continued monitoring is needed to understand those enigmatic cases.
Finding the most variable stars in the Orion Belt with the All Sky Automated Survey

We look for high-amplitude variable young stars in the open clusters and associations of the Orion Belt. We use public data from the ASAS-3 Photometric V -band Catalogue of the All Sky Automated Survey, infrared photometry from the 2MASS and IRAS catalogues, proper motions, and the Aladin sky atlas to obtain a list of the most variable stars in a survey area of side 5° centred on the bright star Alnilam (e Ori) in the centre of the Orion Belt. We identify 32 highly variable stars, of which 16 had not been reported to vary before. They are mostly variable young stars and candidates (16) and background giants (8), but there are also field cataclysmic variables, contact binaries, and eclipsing binary candidates. Of the young stars, which typically are active Herbig Ae/Be and T Tauri stars with Hα emission and infrared flux excess, we discover four new variables and confirm the variability status of another two. Some of them belong to the well known σ Orionis cluster. Besides, six of the eight giants are new variables, and three are new periodic variables (© 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)
Detecting chameleons through Casimir force measurements

The best laboratory constraints on strongly coupled chameleon fields come not from tests of gravity per se but from precision measurements of the Casimir force. The chameleonic force between two nearby bodies is more akin to a Casimir-like force than a gravitational one: The chameleon force behaves as an inverse power of the distance of separation between the surfaces of two bodies, just as the Casimir force does. Additionally, experimental tests of gravity often employ a thin metallic sheet to shield electrostatic forces; however, this sheet masks any detectable signal due to the presence of a strongly coupled chameleon field. As a result of this shielding, experiments that are designed to specifically test the behavior of gravity are often unable to place any constraint on chameleon fields with a strong coupling to matter. Casimir force measurements do not employ a physical electrostatic shield and as such are able to put tighter constraints on the properties of chameleons fields with a strong matter coupling than tests of gravity. Motivated by this, we perform a full investigation on the possibility of testing chameleon models with both present and future Casimir experiments. We find that present-day measurements are not able to detect the chameleon. However, future experiments have a strong possibility of detecting or rule out a whole class of chameleon models.
qualitative study on the impact of globalisation on public relations practice in Ghana

The article analyses the perceived impact of globalisation on public relations practice in Ghana byexamining how Ghanaian PR practitioners are utilising the opportunities that globalisation offerswhile dealing with the challenges it brings. The qualitative interview technique was used to interviewa total of five (5) PR practitioners from the non-banking financial services sector. Results show PRpractitioners are very much aware of the demand placed on them by globalisation. Communicationinfrastructural challenges as well as a lack of technological skills is proving a huge challenge inthe management of communication activities. As multinational organisations continue to floodinto the country, the competition will be keen. Practitioners need to upgrade their skills, especiallyin the area of digital communication, and knowledge regarding the current standards of practicein the era of globalisation. It is essential for PR educators in Ghana to respond to the challengeof globalisation by redefining their teaching curriculums to reflect the dynamics of internationalpractice. Moreover, it is time for African PR scholars to make a significant contribution to thisdiscussion from an African perspective. The limited number of interviewees and the selection ofpractitioners from a particular sector of the economy, however, means the research cannot begeneralised.
Polarized light. Fundamentals and applications

Part 1 The classical optical field: the wave equation in classical optics the polarization ellipse the Stokes polarization parameters the Mueller matrices for polarizing components methods for measuring the Stokes polarization parameters the measurement of the characteristics of polarizing elements Mueller matrices for reflection and transmission the Mueller matrices for dielectric plates the Jones matrix calculus the Poincare sphere the interface laws of Fresnel and Arago. Part 2 The classical and quantum theory of radiation by accelerating charges: Maxwell's equations for the electromagnetic field the classical radiation field radiation from accelerating charges the radiation of an accelerating change in the electromagnetic field the classical Zeeman effect further applications of the classical radiation theory the Stokes parameters and the Mueller matrices for optical and Fararaday rotation the Stokes parameters for quantum systems. Part 3 Applications: crystal optics optics of metals ellipsometry.
On the Lorentz factor of superluminal sources

We investigate the properties of features seen within superluminal sources often referred to as components. Our result indicates a fairly strong correlation of r ∼ 0.5 for quasars, r ∼ 0.4 for galaxies and r ∼ 0.7 for BL Lac objects in our sample between component sizes and distances from the stationary core. The assumption of free adiabatic expanding plasma enables us to constrain the Lorentz factor for superluminal sources. Our estimated Lorentz factor of γ ∼ 9–13 for quasars, γ ∼ 7–11 for galaxies and γ ∼ 4–9 for BL Lac objects indicates that BL Lacs have the lowest range of Lorentz factors.
Investigation on the Use of Virtual Reality in the Flipped Teaching of Martial Arts Taijiquan Based on Deep Learning and Big Data Analytics

Flipping classroom teaching of martial arts “Taijiquan” is a contemporary teaching method that primarily uses information technology tools to accomplish the natural fusion of information technology and education and teaching. Digital teaching materials influence the conventional classroom. The conventional teaching approach of teacher instruction and student learning is no longer satisfactory to students. Virtual reality (VR) technology and physical education integration and development have currently emerged as a new trend, but research on its application to martial arts is still in its theoretical stages and lacks concrete application countermeasures and schemes, necessitating further investigation and study. This paper intends to investigate the use of virtual reality technology in martial arts education. The architecture of virtual reality based on the deep learning algorithm is suggested. The student dataset is collected, and they are split into two groups: control and study groups. Traditional teaching is provided to the control group, and deep learning-based VR-assisted teaching is provided to the study group using the Deep Binary Hashed Convolutional Neural Network (DBH-CNN). Statistical analysis is done using Student’s t -test, logistic regression analysis, and analysis of variance (ANOVA). According to the study findings, the majority of students see virtual reality technology-assisted martial arts education favorably, and their passion for studying martial arts has greatly increased.
Performance Limit and Design Guideline of 4H-SiC Superjunction Devices Considering Anisotropy of Impact Ionization

Superjunction (SJ) structure is one of the most effective approaches to improving the performance limit between specific ON-resistance (<inline-formula> <tex-math notation="LaTeX">${R}_{\text {on,sp}}$ </tex-math></inline-formula>) and breakdown voltage (<inline-formula> <tex-math notation="LaTeX">$\textit {BV}$ </tex-math></inline-formula>) for the unipolar power device, particularly in high-voltage and high-current areas. In this letter, <inline-formula> <tex-math notation="LaTeX">${R}_{\text {on,sp}}-\textit {BV}$ </tex-math></inline-formula> performance limit of 4H-SiC SJ drift region is achieved featuring both the two-dimensional electric field and the anisotropy of impact ionization of 4H-SiC. The breakdown path is the curve from the bottom midpoint of N pillar to the top midpoint of P pillar via the midpoint of P-N pillar interface, instead of the midline of the pillar, due to that the impact ionization along [<inline-formula> <tex-math notation="LaTeX">$11~\overline {{2}}~0$ </tex-math></inline-formula>] is stronger than that along [0001]. Moreover, a design guideline is provided for optimized <inline-formula> <tex-math notation="LaTeX">${R}_{\text {on,sp}}$ </tex-math></inline-formula> (<inline-formula> <tex-math notation="LaTeX">${R}_{\text {on,opt}}$ </tex-math></inline-formula>) under a given <inline-formula> <tex-math notation="LaTeX">$\textit {BV}$ </tex-math></inline-formula>, including the width, depth, and concentration of SiC SJ drift region. SJ adoption enables SiC drift region to have a quasi-linear dependence of <inline-formula> <tex-math notation="LaTeX">${R}_{\text {on,sp}}$ </tex-math></inline-formula> on <inline-formula> <tex-math notation="LaTeX">$\textit {BV}$ </tex-math></inline-formula>, i.e., <inline-formula> <tex-math notation="LaTeX">${R}_{\text {on,sp}}\propto \textit {BV}^{{1.007}}$ </tex-math></inline-formula>, which is well verified by TCAD simulation. With <inline-formula> <tex-math notation="LaTeX">$\textit {BV}$ </tex-math></inline-formula> larger than 2000V, the SJ utilization can significantly reduce <inline-formula> <tex-math notation="LaTeX">${R}_{\text {on,sp}}$ </tex-math></inline-formula> of SiC device. By determining the breakdown path, the theoretical performance limit shows huge potential of SJ approach for the high-voltage and high-current SiC device, and the practical design guideline can instruct to better design the SiC SJ device.
Intimate partner violence against adolescent brides in Pwani region, Tanzania

ABSTRACT Little is known about adolescent brides and their experiences of physical, emotional, and sexual violence, and the factors that are associated with intimate partner violence. This was a case study that involved adolescent brides aged 13–17 years who had been married for one year or more or had gotten divorced within the year prior to this study. A snowball sampling method was used to select 25 participants. Data collection was done qualitatively using in-depth interviews. Data analysis was done using a thematic approach. The forms of physical violence that were identified included: beating without a weapon and beating with a weapon. Forms of emotional violence that were reported included insult, humiliation, and restrictions on freedom. Regarding sexual violence, respondents reported sexusal abuse involving use of physical force and sexual abuse not involving use of physical force. The study revealed that the common factors seen to contribute to intimate partner violence are gender norms that condone men’s controlling behaviour; women’s economic dependency on their husbands; men’s engagement in extramarital affairs; and alcohol consumption. In conclusion, the findings of this study suggest that the existing strategies for ending gender-based violence have paid very little attention to the plight of adolescent brides.
Detection of variable circular polarization in the SW Sex star V795 Herculis

We report the detection of modulated circular polarization in V795 Her. The degree of polarization increases with wavelength and is modulated with a period of 19.54 min, which is very close to the reported optical QPO period. The modulation has a peak-to-peak amplitude of 0.12% in the U-band. The estimated magnetic field intensity is in the range 2-7 MG.
Alternative Transcription Start Site Usage and Functional Implications in Pathogenic Fungi

Pathogenic fungi require delicate gene regulation mechanisms to adapt to diverse living environments and escape host immune systems. Recent advances in sequencing technology have exposed the complexity of the fungal genome, thus allowing the gradual disentanglement of multiple layers of gene expression control. Alternative transcription start site (aTSS) usage, previously reported to be prominent in mammals and to play important roles in physiopathology, is also present in fungi to fine-tune gene expression. Depending on the alteration in their sequences, RNA isoforms arising from aTSSs acquire different characteristics that significantly alter their stability and translational capacity as well as the properties and biologic functions of the resulting proteins. Disrupted control of aTSS usage has been reported to severely impair growth, virulence, and the infectious capacity of pathogenic fungi. Here, we discuss principle concepts, mechanisms, and the functional implication of aTSS usage in fungi.
Hadronic models of high-energy radiation from microquasars: recent developments

If the jets of microquasars carry a significant power in the form of relativistic hadrons, then gamma rays and neutrinos can be produced by interactions with matter and photon fields either external or internal to the jet. In this paper I present some recent results of calculations of the interaction of hadronic jets with 1) matter of the jet itself, 2) photon fields generated by synchrotron radiation of both protons and electrons, and 3) matter external to the jet (e.g. a clumped wind). I briefly discuss neutrino production in these scenarios and the prospects of detection with new gamma-ray instruments. Finally, I make a few comments on the controversy about the nature of LS I +61 303.
Quantization and fixed points of non-integrable Weyl theory

We consider a simple but generic model of gravity where Weyl invariance is realized thanks to the presence of a gauge field for dilatations. We quantize the theory by suitably defining renormalization group flows that describe the integration of successive momentum shells, in such a way that Weyl invariance is maintained in the flow. When the gauge fields are massless the theory has, in addition to Weyl invariance, an abelian gauge symmetry. According to the definition of the cutoff, the flow can break or preserve this extended symmetry. We discuss the fixed points of these flows.
Systemic immune-inflammation index as a novel predictor of atrial fibrillation after off-pump coronary artery bypass grafting

SUMMARY OBJECTIVE: This study aims to examine the predictive role of systemic immune-inflammation index on postoperative new-onset atrial fibrillation in patients undergoing off-pump coronary artery bypass grafting. METHODS: A total of 722 patients undergoing elective off-pump coronary artery bypass grafting between January 2017 and September 2021 were included in this study and divided into two groups as the atrial fibrillation group (n=172) and the non-atrial fibrillation group (n=550). Both groups were compared in terms of patients’ baseline clinical features, operative and postoperative variables, and preoperative hematological indices derived from the complete blood count analysis. Multivariate logistic regression and receiver-operating characteristic curve analyses were performed to detect the independent predictors of postoperative new-onset atrial fibrillation. RESULTS: The median age and length of hospital stay in the atrial fibrillation group were significantly higher than those in the non-atrial fibrillation group. The median values of white blood cell, platelet, neutrophil, neutrophil/lymphocyte ratio, platelet/lymphocyte ratio, and systemic immune-inflammation in the atrial fibrillation group were significantly greater than in those in the non- atrial fibrillation group. Logistic regression analysis demonstrated that age, platelet, platelet/lymphocyte ratio, and systemic immune-inflammation were independent predictors of postoperative new-onset atrial fibrillation. receiver-operating characteristic curve analysis revealed that systemic immune-inflammation of 706.7×103/mm3 constituted cut-off value to predict the occurrence of new-onset atrial fibrillation with 86.6% sensitivity and 29.3% specificity. CONCLUSION: Our study revealed for the first time that systemic immune-inflammation predicted new-onset atrial fibrillation after off-pump coronary artery bypass grafting.
A Comparison of Missing Value Imputation Techniques on Coupon Acceptance Prediction

The In-Vehicle Coupon Recommendation System is a type of coupon used to represent an idea of different driving scenarios to users. Basically, with the help of presenting the scenarios, the people’s opinion is taken on whether they will accept the coupon or not. The coupons offered in the survey were for Bar, Coffee Shop, Restaurants, and Take Away. The dataset consists of various attributes that capture precise information about the clients to give a coupon recommendation. The dataset is significant to shops to determine whether the coupons they offer are benefi-cial or not, depending on the different characteristics and scenarios of the users. A major problem with this dataset was that the dataset was imbalanced and mixed with missing values. Handling the missing values and imbalanced class problems could affect the prediction results. In the paper, we analysed the impact of four different imputation techniques (Frequent value, mean, KNN, MICE) to replace the missing values and use them to create prediction mod-els. As for models, we applied six classifier algorithms (Naive Bayes, Deep Learning, Logistic Regression, Decision Tree, Random Forest, and Gradient Boosted Tree). This paper aims to analyse the impact of the imputation techniques on the dataset alongside the outcomes of the classifiers to find the most accurate model among them. So that shops or stores that offer coupons or vouchers would get a real idea about their target customers. From our research, we found out that KNN imputation with Deep Learning classifier gave the most accurate outcome for prediction and false-negative rate.
Detection of the Onset of Trip Symptoms Embedded in Gas Turbine Operating Data

One of the most disrupting events that affect gas turbine (GT) operation is trip, since its occurrence reduces machine life span and also causes business interruption. Thus, early detection of incipient symptoms of GT trip is crucial to ensure efficient operation and save costs. This paper presents a data-driven methodology of which the goal is the disclosure of the onset of trip symptoms by exploring multiple trigger scenarios. For each scenario, a time window of the same length is considered before and after the trigger time point: the former is supposed to be representative of normal operation and is labeled “No trip”, whereas the latter is labeled “Trip”. A Long Short-Term Memory (LSTM) neural network is first trained for each scenario and subsequently tested on new trips over a timeframe of three days of operation before trip occurrence. Finally, trips are clustered into homogeneous groups according to their most likely trigger position, which identifies the time point of onset of trip symptoms. The methodology is applied to two real-world case studies composed of a collection of trips, of which the causes are different, taken from various fleets of GTs in operation. Data collected from multiple sensors are employed and analyzed. The methodology provides the most likely trigger position for four clusters of trips and both case studies with a confidence in the range 66% - 97%.
First‐Principles Study of Structural and Electronic Properties of Germanene

The ground state structural and electronic properties of germanene (the germanium analogue of graphene) are investigated using first‐principles calculations. On structure optimization, the grapheme‐like honeycomb structure of germanene turns out as buckled (buckling parameter Δ = 0.635 A) in contrast with graphene’s planar structure (buckling parameter Δ = 0.0 A). In spite of this, germanene has similar electronic structure as that of graphene. While corroborating the reported results, we newly predict the in‐plane contraction of hexagonal Ge with (thermal) stretching along the “c” axis, akin to a phenomenon observed in graphite.
Surface tension of highly magnetized degenerate quark matter

We study the surface tension of highly magnetized three flavor quark matter within the formalism of multiple reflection expansion (MRE). Quark matter is described as a mixture of free Fermi gases composed by quarks $u$, $d$, $s$ and electrons, in chemical equilibrium under weak interactions. Due to the presence of strong magnetic fields the particles' transverse motion is quantized into Landau levels, and the surface tension has a different value in the parallel and transverse directions with respect to the magnetic field. We calculate the transverse and longitudinal surface tension for different values of the magnetic field and for quark matter drops with different sizes, from a few fm to the bulk limit. For baryon number densities between $2-10$ times the nuclear saturation density, the surface tension falls in the range $2 - 20$ MeV /fm$^{2}$. The largest contribution comes from strange quarks which have a surface tension an order of magnitude larger than the one for $u$ or $d$ quarks and more than two orders of magnitude larger than for electrons. Our results show that the total surface tension is quite insensitive to the size of the drop. We also find that the surface tensions in the transverse and parallel directions are almost unaffected by the magnetic field if $eB$ is below $\sim 5 \times 10^{-3} $ GeV$^2$. Nevertheless, for higher values of $eB$, there is a significant increase in the parallel surface tension and a significant decrease in the transverse one with respect to the unmagnetized case.