Miracle-dz/UniFAR-FTUs huggingface dataset:
The Study of the students’ Speaking Performance in Demonstrating Product Advertising

This Study discusses analyzing the students’ speaking performance in demonstrating the product advertising. There were 24 second-semester students of the English Language Study Program of a private university who participated in this study. The researchers conducted this study by analyzing the students’ speaking scores and categorizing the students’ speaking achievements into five levels of ability. There were five levels of ability that cover the aspects of speaking skills. Those levels are poor, fair, average, good, and excellent. The finding showed that the excellent level contributed as 42 %, then average and good level have the same percentage as 25 % and the two last levels were fair and poor got 4 % for each of them. The average score of students’ speaking performance in demonstrating the product advertising was at a good level. It could be described that the students’ speaking performance was good, both in students cognitive and mental preparation.
Intergalactic HII regions in Stephan's Quintet

We have discovered four intergalactic HII regions in the Stephan's quintet, at more than 25 kpc projected distance from the center of the nearest group galaxy, with no apparent optical connection to it. They have ${\rm M}_B$ ranging from −11.9 to −12.5 mag, colors B$-$R=0.7 to 1.1 mag, radial velocities from 6565 to 6651 km/s and they are superposed onto the HI tail east of NGC 7319, with a mean radial velocity of 6610 km/s. In addition, they have metalicities of the order of 12+log(O/H)=8.58$\pm$0.25, which suggests that they were formed from pre-enriched material. We derive a mean age of $4.6 \pm 0.6$ Myr and a mean stellar mass of $(2.9 \pm 1.4)\times10^4~M_\odot$ for the four objects. The masses, ages, colors, velocities, metalicities and location of the objects suggest that they are HII regions that were formed far away from the galaxies through compression of the intergalactic HI gas by galaxy collisions.To search for other articles by the author(s) go to: http://adsabs.harvard. edu/abstract_service. html
Snacking during hibernation? Winter bat diet and prey availabilities, a case study from Iskar Gorge, Bulgaria

Better empirical knowledge of how bat and insect phenology are influenced by seasonal environmental conditions and how this may affect fitness is essential in the face of changing climatic conditions. We examined the winter diet of the Schreibers’ bent-winged bat Miniopterus schreibersii (Kuhl, 1817) from Razhishkata Cave, Balkan Mountains, Bulgaria during four sampling periods in the winter of 2021 (end of January - end of March). We used a combination of DNA metabarcoding and a microscope-based morphological analyses of bats droppings. Additionally, we tracked prey availability in the studied area using insect flight interception traps (FIT). The species was actively feeding outside the cave and did not use the cave fauna. Our samples indicate a shift in the winter diet of the bats throughout the studied periods. Even though Diptera was the most abundant order of insects during two of the study periods, bats were preying predominantly on Lepidoptera and Hymenoptera. The metabarcoding also supported this with data for the presence of insects with diurnal activity in the samples. The temperature loggers showed a strong correlation between the outside temperature and the temperature in the cave where the colony was located, probably impacting the activity patterns of the bats. To our knowledge, this is the first study of winter bat activity and diet in Bulgaria. Our research can serve as a potential framework for studying winter bat activity and insect activity during this sensitive period.
Construction of minimal syndrome formers for group codes

System theoretic concepts have played in the past an important role in the development and in the analysis of error correcting codes. Indeed the concepts of encoder, syndrome former and of trellis for a code are strictly related with the notions of image representation, kernel representation and state space representation of a behavior, respectively. In previous years, the need of a joint optimization of the modulation and coding procedures produced the development of coding techniques (trellis coded modulation schemes) that can be often well modeled by resorting to the concept of group code, that is a code defined over a group alphabet. For this class of codes the existence of a canonical minimal trellis and of a canonical minimal encoder has been proved in Forney and Trott (1993). In this paper we complete the analysis provided in the above article showing that also a canonical minimal syndrome former exists and that it can always be constructed starting from the observability granules of the group code. These sets dualize the so called controllability granules which play an essential role in the construction of the canonical encoder proposed in the above article.
Vocational School Students’ Perceptions of the Use of Animated Movies in Narrative Text Learning

This study aims to explore the perception of vocational school students in learning narrative texts by using animated movies. This study is qualitative research with the questionnaire and interview as the instruments of collecting data. The participants of this study were 36 students of a state vocational school in Pati regency, Indonesia majoring in the Financial & Institutional Accounting Program. The results of the questionnaire show that in general, 81.57% of the participants have a positive perception of the use of animated movies in learning narrative texts. Meanwhile, 18.43% of the participants have a negative perception. The results of interviews conducted with five students also reveal that most of the students agree on the use of animated movies because they help and support the learning process and are very easy to understand. From this research on the use of animated movies, teachers are suggested to use this media in teaching narrative texts. Keywords: Perception; Narrative Texts; Animated Movie.
Monitoring patient survival times in surgical systems using a risk-adjusted AFT regression chart

Abstract Monitoring surgical processes has gained prominence by accounting for patients’ health condition prior to surgery in recent years. However, most of previous researchers have focused on Phase-II monitoring based on binary outcomes, while very little attention has been paid to Phase-I monitoring procedures, especially when the outcomes are continuous. In this paper, a general Phase-I accelerated failure time-based risk-adjusted control chart is proposed to monitor continuous surgical outcomes based on a likelihood-ratio test derived from a change-point model. Different from the existing models, this paper shows that continuous outcomes depend not only on the patient conditions described by the Parsonnet score, but also is dependent on other categorical operational covariates such as surgeons. The proposed risk-adjustment model is fitted by incorporating dummy variables to reflect different surgeon groups as a categorical covariate. We show that the categorical covariate can effectively reflect the inherent data heterogeneity, thus can improve the estimation of the parameters of the risk-adjustment model and hence can enhance the detection power of the proposed risk-adjusted control chart.
Comparison on genomic prediction using pedigree BLUP and single step GBLUP through the Hanwoo full-sib family

Objective When evaluating individuals with the same parent and no phenotype by pedigree best linear unbiased prediction (BLUP), it is difficult to explain carcass grade difference and select individuals because they have the same value in pedigree BLUP (PBLUP). However, single step GBLUP (ssGBLUP), which can estimate the breeding value suitable for the individual by adding genotype, is more accurate than the existing method. Methods The breeding value and accuracy were estimated with pedigree BLUP and ssGBLUP using pedigree and genotype of 408 Hanwoo cattle from 16 families with the same parent among siblings produced by fertilized egg transplantation. A total of 14,225 Hanwoo cattle with pedigree, genotype and phenotype were used as the reference population. PBLUP obtained estimated breeding value (EBV) using the pedigree of the test and reference populations, and ssGBLUP obtained genomic EBV (GEBV) after constructing and H-matrix by integrating the pedigree and genotype of the test and reference populations. Results For all traits, the accuracy of GEBV using ssGBLUP is 0.18 to 0.20 higher than the accuracy of EBV obtained with PBLUP. Comparison of EBV and GEBV of individuals without phenotype, since the value of EBV is estimated based on expected values of alleles passed down from common ancestors. It does not take Mendelian sampling into consideration, so the EBV of all individuals within the same family is estimated to be the same value. However, GEBV makes estimating true kinship coefficient based on different genotypes of individuals possible, so GEBV that corresponds to each individual is estimated rather than a uniform GEBV for each individual. Conclusion Since Hanwoo cows bred through embryo transfer have a high possibility of having the same parent, if ssGBLUP after adding genotype is used, estimating true kinship coefficient corresponding to each individual becomes possible, allowing for more accurate estimation of breeding value.
Phenotypic Performance and The Characterization of Growth Hormone (GH|AluI) in Bangkok Chicken Breed

This study aimed to determine Bangkok chicken’sphenotypic characteristics and growth hormone genes using the PCR-RFLP method. The samples used were 50 Bangkok chickens. Research in the field is taking phenotypic traits data. Research in the laboratory is carried out by DNA isolation, amplification, and restriction. This study showed that DOC weight,body weight, and bodyweight gain of DOC-1 month, 1-2 months, 2-3 months of Bangkok chickens were significantly different (P <0.05) higher than female Bangkok chickens. The results of the molecular analysis of DNA isolation were precise, then the amplification of the GH gene fragment with a product length of 997 bp and restriction obtained a ++ genotype. Allele frequencies and genotypes obtained in the Bangkok chicken GH|AluI genesare monomorphic. Conclusion: the phenotypic characteristics of the average body weight, the body weightgainof male Bangkok chicken was higher than that of female. Allele frequencies and genotypes of Bangkok chicken are monomorphic.
Prevalence and Clinical Manifestations of Rotavirus and Adenovirus Infections in Children Under Five Years Old in Katsina State, Northwestern Nigeria.

Mukhtar . G.L. Gastroenteritis is a leading cause of childhood morbidity and mortality in developing countries. Our aim was to determine the prevalence of rotavirus and adenovirus infection and their co-infection in children aged < 5 years in Katsina State, Northwestern Nigeria. A total of 400 (322 diarrhoiec and 78 non-diarrhoiec) stool specimens were collected from children attending six hospitals located across the three senatorial zones of the state from June 2013 to April 2014. Their socio-demographic information and clinical presentations were noted with the aid of questionnaire. Viral antigens were detected by enzyme linked immunosorbent assay (ELISA). Rotavirus was detected in 5.3% of the diarrhoiec and none in the non-diarrhoiec specimens while adenovirus was detected in 12.4% of the diarrhoiec and 5.1% of the non-diarrhoiec specimens. Co-infection of rotavirus and adenovirus was observed in 0.6% of the diarrhoiec children. Generally, children < 2 years old were more vulnerable to rotavirus and adenovirus infection. There was a significant association between dehydration and rotavirus and adenovirus infections (p<0.05).
Inferential statistics in Language Teaching Research: A review and ways forward

This article reviews all (quasi)experimental studies appearing in the first 19 volumes (1997–2015) of Language Teaching Research (LTR). Specifically, it provides an overview of how statistical analyses were conducted in these studies and of how the analyses were reported. The overall conclusion is that there has been a tight adherence to traditional methods and practices, some of which are suboptimal. Accordingly, a number of improvements are recommended. Topics covered include the implications of small average sample sizes, the unsuitability of p values as indicators of replicability, statistical power and implications of low power, the non-robustness of the most commonly used significance tests, the benefits of reporting standardized effect sizes such as Cohen’s d, options regarding control of the familywise Type I error rate, analytic options in pretest–posttest designs, ‘meta-analytic thinking’ and its benefits, and the mistaken use of a significance test to show that treatment groups are equivalent at pretest. An online companion article elaborates on some of these topics plus a few additional ones and offers guidelines, recommendations, and additional background discussion for researchers intending to submit to LTR an article reporting a (quasi)experimental study.
Surgical Management of Retroperitoneal Sarcoma

Surgery is the cornerstone of treatment for retroperitoneal sarcoma (RPS). Surgery should be performed by a surgical oncologist with sub-specialization in this disease and in the context of a multidisciplinary team of sarcoma specialists. For primary RPS, the goal of surgery is to achieve the complete en bloc resection of the tumor along with involved organs and structures to maximize the clearance of the disease. The extent of resection also needs to consider the risk of complications. Unfortunately, the overarching challenge in primary RPS treatment is that even with optimal surgery, tumor recurrence occurs frequently. The pattern of recurrence after surgery (e.g., local versus distant) is strongly associated with the specific histologic type of RPS. Radiation and systemic therapy may improve outcomes in RPS and there is emerging data studying the benefit of non-surgical treatments in primary disease. Topics in need of further investigation include criteria for unresectability and management of locally recurrent disease. Moving forward, global collaboration among RPS specialists will be key for continuing to advance our understanding of this disease and find more effective treatments.
Do Outcomes Differ After Proximal Hamstring Repair for Patients Receiving Workers’ Compensation?

Background: Patients with workers’ compensation (WC) insurance claims are often shown to experience inferior patient-reported outcomes (PROs) after an orthopaedic surgical intervention compared with patients without WC claims. Purpose: To compare the postoperative PROs of patients with WC claims (WC patients) versus those without WC claims (non-WC patients) after proximal hamstring repair (PHR). Study Design: Cohort study; Level of evidence, 3. Methods: WC patients who underwent PHR between November 2011 and to September 2020 were propensity score matched at a 1:2 ratio to non-WC patients according to age, sex, and body mass index. Comorbidity data were collected as well as minimum 1-year postoperative PRO scores for the Lower Extremity Functional Scale (LEFS), the Hip Outcome Score (HOS), and the 12-Item Short From Health Survey (SF-12) Physical Component Summary (PCS) and Mental Component Summary (MCS). The type of work was characterized according to national WC insurance guidelines as light (maximum 20 lbs [9.1 kg]), medium (maximum 50 lbs [22.7 kg]), or heavy (≥50 lbs) [>/=22.7 kg]. Results: A total of 30 patients (10 WC and 20 non-WC) were included. The work type and baseline demographic characteristics of patients did not differ between groups. There were no significant between-group differences in postoperative PRO scores as measured by the LEFS (P = .488), HOS (P = .233), or SF-12 PCS (P = .521). However, the WC cohort showed inferior SF-12 MCS scores compared with the non-WC group (49.28 ± 9.97 vs 54.26 ± 9.69, respectively; P = .032). The WC status was also associated with an increased time needed for patients to return to full-duty work capacity (21 ± 9 vs 9 ± 8 weeks; P = .005). Conclusion: Our findings suggest that WC and non-WC patients who undergo PHR have comparable outcomes. Differences in SF-12 MCS scores and return to work time for full-duty capacity warrant further investigation.
The detection and classification method of sub-macroscopic defects inside steel with an ultrasonic testing and CatBoost-based stacking model

With the increasing demand for advanced steel, the internal cleanness of steel becomes an important evaluation indicator of material quality. Sub-macroscopic defects are randomly distributed inside steel materials, which have seriously affected material stability and fatigue life because they are not covered by existing testing standards. Besides, the existing detection methods generally have problems such as low efficiency and complexity. In this paper, we propose a non-destructive inclusion testing and classification framework based on ultrasonic testing experiments, signal feature extraction and machine-learning methods. Under the optimal experimental detection conditions we found through experiments, a large-scale sub-macroscopic inclusion signal data set is established to realize the classification of defects. Moreover, empirical mode decomposition (EMD) and other feature extraction algorithms are applied to further boost the model performance. We propose a CatBoost-based stacking fused model named Stacked-CBT, which obtains state-of-the-art experimental results with an accuracy rate of 86.65% and demonstrates that the proposed framework is feasible to classify the sub-macroscopic inclusion signals. To the best of our knowledge, there is no previous study in this field that has acquired such a large amount of experimental sub-macroscopic signal data while taking into consideration classification-specific designs.
Seeking large thermoelectric effects in MgO-based tunnel junctions

There is much controversy concerning thermoelectric effects in the MgO-based magnetic tunnel junctions (MTJs) as reported in some recent publications. To clarify the problem, we give calculations from atomic first-principles systemically. Large Seebeck coefficient (S) and up-limit of figure of merit (ZT) are predicted in double- and multi-barrier MTJs, with those in single-barrier MTJs being relatively small. By restraining the phonon thermal conductance through the introduction of one vacuum barrier or numbers of MgO barriers, the up-limit of ZT can be obtained. Room temperature S ≈ − 220 μ V K − 1 and ZT ≈ 3.5 are predicted in an asymmetric Fe ∣ MgO ∣ Fe ∣ Vaccum ∣ Fe MTJs. The resonant quantum-well states are suggested to be responsible for the enhanced thermoelectric effects in the MTJs with double- and multi-barrier.
Boundary regularity and embedded solutions for the oriented Plateau problem

BOUNDARY REGULARITY AND EMBEDDED SOLUTIONS FOR THE ORIENTED PLATEAU PROBLEM BY ROBERT HARDT AND LEON SIMON Any fixed C Jordan curve F in R is known to span an orientable minimal surface in several different senses. In the work of Douglas, Rado and Courant (see e.g. [3, IV, §4]) the minimal surface occurs as an area-minimizing mapping from a fixed orientable surface of finite genus and may possibly have self-intersections. In the work of Fédérer and Fleming (see e.g. [4, §5]) the minimal surface, which occurs as the support of an area-minimizing rectifiable current, is necessarily embedded (away from T) but was not previously known even to have finite genus. Our work in [7], which establishes complete boundary regularity for the latter surface, thus implies that there exists an orientable embedded minimal surface with boundary T. In fact:
Indigenous relationality: definitions and methods

The following seeks to advance relational research methods by providing more specificity in how relationality is defined, and by engaging commonly held refrains on relational research. Responding to concerns about Indigenous relationality being pan-Indigenous, we suggest a three-part framework that defines Indigenous relationality. First, relationality as a defining aspect of global Indigeneity; second, relational understandings that emerge from specific Indigenous nations and third, relationality as manifest within inter-Indigenous connections. Building on our definitional work, we argue that three common refrains within relational research methods should be extended. First, researchers should be able to balance a slippage between the particular context of Indigenous nations and the general context of Indigenous relationality. Second, we have to do more than simply value relationships, and consider how we use relationality for critical thinking. Finally, ensuring accountability within Indigenous research requires us to revisit how we analyze the concept of community.
A hybrid EMD-AR model for nonlinear and non-stationary wave forecasting

Accurate wave forecasting with a couple of hours of warning time offers improvements in safety for maritime operation-related activities. Autoregressive (AR) model is an efficient and highly adaptive approach for wave forecasting. However, it is based on linear and stationary theory and hence has limitations in forecasting nonlinear and non-stationary waves. Inspired by the capability of empirical mode decomposition (EMD) technique in handling nonlinear and non-stationary signals, this paper describes the development of a hybrid EMD-AR model for nonlinear and non-stationary wave forecasting. The EMDAR model was developed by coupling an AR model with the EMD technique. Nonlinearity and non-stationarity were overcome by decomposing the wave time series into several simple components for which the AR model is suitable. The EMD-AR model was implemented using measured significant wave height data from the National Data Buoy Center, USA. Prediction results from various locations consistently show that the hybrid EMD-AR model is superior to the AR model. This demonstrates that the EMD technique is effective in processing nonlinear and non-stationary waves. 中文概要目 的相对于由能量平衡方程得到的数值预报模型和 以神经网络为代表的非线性模型而言, 自回归 (AR)模型在波浪预报中具有计算效率高、自 适应性强和建模所需的样本小等优点, 但同时 存在局限于平稳线性假设的缺陷。 针对非线性 非平稳波浪的极短期预报问题, 提出一种复合 的经验模态分解自回归预报模型, 提高波浪预 报精度。 创新点1. 研究非线性非平稳波浪极短期预报问题, 提 出一种复合的预报方法; 2. 基于三个不同地理 位置的海洋波浪实测数据对预测模型进行验 证, 并分析非线性非平稳性对波浪预报结果的 影响。 方 法1. 在AR 模型中引入经验模态分解(EMD)方 法, 形成复合的EMD-AR 预报模型; 2. 分析实 测波浪数据的非线性和非平稳性特点, 并基于 实测波浪数据获得AR 模型和EMD-AR 模型的 预报结果; 3. 基于多种预报误差度量分析AR 模 型和EMD-AR 模型的预报性能以及非线性非平 稳性对波浪预报结果的影响。 结 论1. 波浪非线性和非平稳性会导致AR 预报模型精 度降低。 预报误差中, 幅值上的偏差主要由波 浪的非线性引起, 而相位上的偏差则是源于波 浪的非平稳性; 2. EMD 方法能够有效地克服波 浪非线性和非平稳性对AR 模型在精度上所带来 的不良影响, 在精度上EMD-AR 模型的预报结 果较AR 模型有较大提高。
Chapters from the book “Wars, Revolutions, Dictatorships: Studies of Historical and Contemporary Problems from a Comparative Viewpoint”

The journal “The Political Conceptology” publishes a translation of the third, fourth and fifth chapters of Stanislav Andreski's book “Wars, Revolutions and Dictatorships: Analysis of Historical and Modern Problems from a Comparative point of View” (Wars, Revolutions, Dictatorships: Studies of Historical and Contemporary Problems from a Comparative Viewpoint) published in 1992 in the publishing house Frank Cass.
Mappings which Preserve Idempotents, Local Automorphisms, and Local Derivations

Abstract It is proved that linear mappings of matrix algebras which preserve idempotents are Jordan homomorphisms. Applying this theorem we get some results concerning local derivations and local automorphisms. As an another application, the complete description of all weakly continuous linear surjective mappings on standard operator algebras which preserve projections is obtained. We also study local ring derivations on commutative semisimple Banach algebras.