Miracle-dz/UniFAR-FTUs huggingface dataset:
Room-Temperature CO Oxidative Coupling for Oxamide Production over Interfacial Au/ZnO Catalysts

: The conversion of carbon monoxide (CO) into high-value organic molecules has long been pursued by both industry and academia. One of the central challenges is to realize carbon − carbon coupling with high selectivity for CO insertion. We report here a highly selective Au/ ZnO composite catalyst for one-step oxidative coupling of CO with secondary amines, producing oxamides. The reaction is >99% selective under ambient conditions, which exhibits a subtle change of catalyst activity over ∼ 120 h in a fixed-bed reactor. A combination of microscopic and spectroscopic studies (including X-ray photoemission spectroscopy, X-ray absorption spectroscopy, CO-Fourier transform infrared spectroscopy, and aberration-corrected high-angle annular dark-field scanning transmission electron microscopy) and machine learning reveal that the active site is the Au − ZnO interface with a Au nanocluster attached to the ZnO support via nonstoichiometric ZnO x ( x > 1) linkages. The reaction mechanism and key reaction intermediates were confirmed by density functional theory calculations and in situ diffused reflectance infrared Fourier transform spectroscopy signals. Our results open an avenue in heterogeneous catalysis to achieve the ambient-condition CO transformation by exploiting the interfacial synergistic effects.
Estimation of Biological Signal Features Indicating Riding Comfort Changes by Trail Variation

In this paper, we aim to construct an evaluation method for bicycle-riding comfort using biological signals. In recent years, it has become important, in bicycle development companies (e.g., MIYATA CYCLE Co., Ltd.), to develop products by reflecting human sensibility in order to improve user satisfaction. In addition to conventional evaluation methods using acceleration, angular velocity, and questionnaires, we focus on the electromyogram (EMG) and the electroencephalogram (EEG) as new evaluation indexes. We analyze the EMG and the EEG to estimate the features of these biological signals and how they reflect changes in bicycle-riding comfort.
The Neutrophil-to-Lymphocyte Ratio and Preoperative Pulmonary Function Test Results as Predictors of In-Hospital Postoperative Complications after Hip Fracture Surgery in Older Adults

Purpose: This study retrospectively evaluated the usefulness of the neutrophil-to-lymphocyte ratio (NLR), prognostic nutritional index (PNI), and pulmonary function test (PFT) results as objective predictors of in-hospital postoperative complications after hip fracture surgery in older adults. Methods: The patients aged >65 years who underwent hip fracture surgery under general anaesthesia were enrolled. In-hospital postoperative complications with preoperative NLR, PNI and PFT results were evaluated. The NLR was calculated as the preoperative neutrophil count/lymphocyte count in peripheral blood. The PNI was calculated as the serum albumin (g/dL) × 10 + total lymphocyte count × 0.005 (/mm3). Results: One hundred ninety nine patients were analysed. The most common postoperative complications were respiratory complications. Compared with patients who did not have postoperative complications, patients with postoperative complications had a significantly higher NLR (8.01 ± 4.70 vs. 5.12 ± 4.34, p < 0.001), whereas they had a significantly lower PNI (38.33 ± 6.80 vs. 42.67 ± 6.47, p < 0.001), preoperative functional vital capacity (FVC; 2.04 ± 0.76 vs. 2.45 ± 0.71 L, p < 0.001), and forced expiratory volume at 1 s (FEV1; 1.43 ± 0.53 vs. 1.78 ± 0.58 L, p < 0.001). Multiple logistic regression analysis identified NLR (odds ratio [OR], 1.142; 95% confidence interval [CI], 1.060–1.230; p < 0.001) and FEV1 (OR, 0.340; 95% CI, 0.191–0.603; p < 0.001) as risk factors for postoperative complications after hip fracture surgery. Conclusion: Preoperative NLR and FEV1 are objective predictors of in-hospital postoperative complications after hip fracture surgery in older patients.
Physical Activity of Prospective Physical Education Teachers During the Covid-19 Pandemic

The study purpose was measuring the physical activity of prospective physical education teachers in Palembang city during the COVID-19 pandemic. Materials and methods. 552 participants (M: 307; F: 245) with a minimum age of 19 (21.27±1.66) participated in this study. The method of this study was survey, using IPAQ-SF to assess physical activity and energy expenditure levels based on MET. Data collection was carried out through an online survey using Google Forms. Results. The results of this study show that the majority of the participants combined the moderate and high levels of physical activity (88.77%) and only a small number of the participants were in the low level category (11.23%). The results of this study showed that the pandemic conditions do not prevent people from doing sufficient PA to maintain their health, but daily habits and knowledge differences related to health and physical activity might be the distinguishing factor between students majoring in sports and society in general. Conclusions. This study shows that most of prospective PE teacher candidates from three universities in Palembang combined the moderate and high PA levels. While there were some student athletes, non-athlete students also have the awareness to live a healthy life even though there is no demand for them to achieve certain targets.
Improving extractive text summarization performance using enhanced feature based rbm method

Text summarization is the process of creating a short, accurate and fluent summary of a longer text document. As plenty of digital data is available online, automatic text summarization methods greatly needed to help and understand the lengthy & complex documents quickly by discovering the relevant information. This paper proposes the text summarization method for short news articles and long scientific papers using unsupervised neural network model. The proposed method works in four main steps: input document pre-processing, feature extraction, feature enhancement and final summary generation. We have extracted combination of various statistical and linguistic features from input document, which helps in improving the quality of sentence selection. Further Restricted Boltzmann Machine (RBM) model is used to capture & enhance the discriminative, abstract features in an unsupervised way to improve the overall performance without losing any significant information. Sentences are scored based on enhanced feature set and top sentences are selected for final extractive summary. Performance of the proposed method is evaluated using Rouge score and compared with TextRank, LexRank, LSA & Luhn baseline methods and the results demonstrates that proposed methodology performs better compared to other methods.
Cover Trees Revisited: Exploiting Unused Distance and Direction Information

The cover tree (CT) and its improved version are hierarchical data structures that simplified navigating nets while maintaining good runtime guarantees. They can perform nearest neighbor search in logarithmic time and provide efficient computation in practice. In this article, we revisit cover trees for nearest neighbor search, and propose a more competitive method. The central idea of our method is to fully exploit the unused distance and direction information. More specially, our method introduces three novel concepts/techniques: (i) range list, (ii) quadrant information, and (iii) vectorial angle cosine. These techniques are seamlessly integrated into our suggested data structure and search algorithms. As an extra bonus, we explore approximate nearest neighbor and <inline-formula><tex-math notation="LaTeX">$k$</tex-math><alternatives><mml:math><mml:mi>k</mml:mi></mml:math><inline-graphic xlink:href="wang-ieq1-3231781.gif"/></alternatives></inline-formula> nearest neighbor based on the proposed techniques, and present algorithms for handling updates. Extensive experimental results, based on both real and synthetic datasets, consistently demonstrate that our method is attractive and competitive, compared against existing cover tree structures for nearest neighbor search and its variants.
Three-Dimensional Division of Visible Light Communication Irradiation Area

In this article, we divide the irradiated area of visible light communication (VLC) into three parts, according to the influence of diffuse reflection, the irradiance half angle at the source and the communication distance on VLC. We present a volume ratio method to quantitatively analyze each divided part. In this work, based on the Lambertian reflection model of the VLC system in line-of-sight channels, five factors affecting the VLC performance are compared and discussed. A VLC system of a single white-light-emitting diode in a 10 m line-of-sight channel indoors is designed by using the intensity modulation and direct detection technique, and a three-dimensional model of the irradiated area is established.By comparing the distribution of the bit error rate (BER) of the optical signal at different lampshade heights, the volume ratio method is used to calculate the volume percentage of the three irradiated areas. The experimental results show that area II with a volume ratio greater than 50% is the best signal receiving area when compared with areas I and III, having a volume ratio in the range 20∼30%.
Red Giants with Extreme Metal Deficiencies.

The three field stars, HD 122563, HD 165195, and HD 221170, similar to giants in metal-poor globular clusters, show decreases in the average metal/ hydrogen ratios by factors of 800, 500, and 500, respectively, compared with the sun. The abundance ratios of other elements to iron resemble those in the sun, with important exceptions. Manganese and vanadium are deficient with respect to iron, by a factor of 3. In HD 122563 all elements heavier than zinc are deficient compared with iron by a factor of 50, yielding a total deficiency of about 50000 for the heavy elements. These observations are interpreted by assuming that the elements were synthesized from hydrogen early in the history of our Galaxy. These stars were formed when the interstellar medium was almost entirely hydrogen, between 10/sup 7/ and 10/sup 9/ years after star formation began. Their metallic constituents were formed and ejected from massive, rapidly evolving stars of extremely low metal content. Processing at high temperatures synthesized the elements from sodium through nickel which are now present in all three stars. The material that went into HD 122563 is drastically deficient in all elements produced by the addition of neutrons to the iron peak, whereasmore » light elements produced by neutron addition---aluminum and scandium--exist in normal amounts or are only slightly deficient. We interpret this to mean that when a flux of free neutrons became available, the progenitors of the light s-process elements were present, but the iron peak elements were rare or absent. The europium in HD 122563 may have been produced by the s-process, a very unexpected result. The presence of europium in HD 165195, in at least the normal ratio to the other elements, raises difficulties concerning r-process nucleosynthesis, since type I supernovae of small mass may not have begun to appear at the early epoch when the star was formed. 37 references. (auth)« less
Modeling Of Beta-Lactamase Protein In Klebsiella Pneumoniae: In Silico Study

Background: Klebsiella pneumoniae is a bacterium that normally lives inside human intestines, where it doesn't cause disease. But if K. pneumoniae gets into other areas of the body, it can lead to a range of illnesses, including pneumonia, bloodstream infections, meningitis, and urinary tract infections. The results that have been obtained from some servers that have been used in this study were gave a poor and good quality of prediction. SWISS MODEL server gave more promising results. Validation was done for the model study by using QMEAN score and ProSA server. 3D Refine and Mod Refiner were used for model refinement. Finally, ProSA server have been used in order to revalidate themodel. Conclusion: SwissMODEL is a three-dimensional structure of an assumed protein sequence that was predicted via homology modeling, and this three-dimensional structure is based mostly on alignments to one or more proteins with known structures. Following construction of the model, it was evaluated and enhanced using 3D-Structure modeling software, which was developed by the University of California, San Francisco (UCSF).
Plant growth-promoting rhizobacteria mediated moisture stress alleviation in the early stages of Rice (Oryza sativa L.) variety CO 51

Drought is one of the abiotic stresses that have a significant impact on agricultural growth across the world. Plant growth-promoting rhizobacteria (PGPR) inoculation in rice plants may be a viable and environmentally acceptable method of sustaining the development and yield of drought-stressed rice plants. The current study focused on the alleviation of drought in the early stages of rice variety CO 51 using PGPR isolated from the rhizosphere of xerophytes. The seeds were treated with bio inoculants and subjected to different moisture stress levels (10%, 20% and 30%) using PEG 6000. The seeds treated with bio inoculants exhibited higher germination percentage and growth traits such as shoot length root length and fresh weight, especially seeds treated with Bacillus velezensis VKSB5 (MT729963), and Bacillus altitudinis MLSB2 (MT729964) over uninoculated plants. This was found to be due to the increased proline accumulation and antioxidant activity in these seedlings, which plays a major role in drought alleviation by altering the osmotic potential and by its ROS scavenging mechanism. Hence this study provides evidence for the effective drought ameliorating ability of these cultures during the initial growth stages of rice. Further studies can contribute to the development of effective bio-inoculants for the mitigation of drought in rice.
Boscalid shows increased thyroxin‐glucuronidation in rat but not in human hepatocytes in vitro

The fungicide boscalid induces thyroid histopathological and hormone effects in the rat, secondary to liver enzyme induction. To assess the human relevance of liver enzyme induction presumably leading to thyroid hormone disruption, a species comparative in vitro study on T4‐glucuronidation was conducted. Currently, no guidelines how to evaluate Phase II induction are in place. Therefore, we investigated the optimal conditions to evaluate Phase I and Phase II induction potential of boscalid in primary rat (PRH) and human (PHH) hepatocytes. Endpoints included mRNA gene expression and enzyme activities (cytochrome P450 isozymes [CYPs] and uridine diphosphate‐glucuronosyltransferases [UGTs]), measured after 3 (D3) and 7 (D7) days of exposure to reference compounds and to 5, 10, and 20 μM boscalid, focusing on T4‐glucuronidation. Basal CYP activities and T4 glucuronidation were similar or higher on D7 than D3. The highest induction responses of CYPs were on D3, whereas UGT induction and T4‐glucuronidation increases were highest on D7. Boscalid induced CYP1A, CYP2B, and CYP3A mRNA and/or increased related activities in PRH and PHH. Species differences in the induction pattern of UGT genes by reference inducers (ß‐naphthoflavone [BNF], 5‐pregnen‐3ß‐ol‐20‐one‐16α‐carbonitirile [PCN], rifampicin [RIF], and phenobarbital [PB]) and boscalid were seen: UGT1A1, UGT1A3, and UGT1A9 were predominantly induced in PHH, while UGT2B1 was predominantly induced in PRH. Basal activity levels for T4‐glucuronidation were very low in humans and an order of magnitude higher in rat, for this reason increases in activities were assessed as delta activity to the control. Significant increases in T4‐glucuronidation occurred with boscalid in rat but not in human hepatocytes.
The Impact of In-Store Inspirational (vs. Deal-Oriented) Communication on Spending: The Importance of Activating Consumption Goal Completion

In-store communication delivered through technological formats (e.g., kiosk, digital display) and nontechnological formats (e.g., magazine cover, flyer) can help retailers enhance sales by delivering relevant content to consumers. Although prior research has examined the effects of deal-oriented content that primarily offers promotions for a single product on shopper spending, the effects of inspirational content that sparks ideas (e.g., ways to use products) on spending are unclear. Inspirational content can affect spending differently from deal-oriented content as it activates stronger motivation for consumption goal completion. This article proposes that inspirational content activates stronger motivations for the consumer’s goal completion and therefore increases spending more than deal-oriented content does. The authors propose and empirically test the hypotheses using data from a set of experimental studies, a field experiment, and an eye-tracking study. The results show that inspirational content increases spending more than deal-oriented content or no content does. This effect is mediated by consumption goal completion, such that it is attenuated when consumers already have consumption goals or when the content detracts from inspiration-induced goals. These results suggest that retailers can increase sales by using clear, inspirational content in their communications.
On the least eigenvalue of a unicyclic mixed graph

Using the result on Fiedler vectors of a simple graph, we obtain a property on the structure of the eigenvectors of a nonsingular unicyclic mixed graph corresponding to its least eigenvalue. With the property, we get some results on minimizing and maximizing the least eigenvalue over all nonsingular unicyclic mixed graphs on n vertices with fixed girth. In particular, the graphs which minimize and maximize, respectively, the least eigenvalue are given over all such graphs with girth 3.
Temperament as a risk factor for drug addiction in young adults

Aim: The aim of this study was to assess the relationship between temperament and addiction to psychoactive substances in young adults.Methods: 74 young adults participated in the study: 37 with substance use disorder and 37 controls, aged 18-28 years. They completed Rothbart’s Adult Temperament Questionnaire (ATQ) and a socio-demographic survey. The study was conducted in the Center for Treatment, Therapy and Rehabilitation, run by the MONAR Association.Results: Our results indicate significant differences between the test group and the control group in the following temperamental traits (p <0.05): Endogenous Sadness, Visual Discomfort, Inhibitory Control, Attentional Shifting, Sociability and Intense Environmental Pleasure. Compared to controls, persons with substance use disorder scored higher on endogenous sadness and intense environmental pleasure. Greater endogenous sadness suggests they experience more negative emotions and lower mood as a result of disappointment or loss, which promotes development of addiction.Discussion: This study demonstrates differences in the severity of some temperamental traits between persons with substance use disorder and control group.It is suggesting that temperament can be a risk factor for addiction to psychoactive substances.
Blast Mitigations of Mid rise structural systems by using Base Isolations

Shelter is a basic need for living creatures. The shelter should be safe and secure. The damage of the shelter occurs due to natural hazards and manmade activities. Natural hazards such as earthquake, volcanic eruptions, landslides, flood, etc. Manmade activities may be accidental or intentional. Accidental activities include, internal explosions such as chemical reactions occurring at nuclear power plants, mining, rock cutting etc, gas explosions leakage etc. Hence while designing the structure, additional precautions and considerations should be taken to resist the unpredictable load. Boatload is a dynamic and impulse loads. The earth load occurs in seconds, In the height of the structures force are distributed and is proportion to mass concentrations, the blast load occurs in milli seconds that is one thousand shorter than the earthquake load and magnitude and locations of the blast load rather than mass the force is concentrated. In the present study Five storey structural system exposed to blast load is considered. MATLAB simulation technique is used in the analysis of the Five storey structural The load is acting on the structural system are calculated. Base isolations method is one the recent method is used to reduce the response of the structural system. The semi active control system is used in the analysis. The response is reduced by considerable amount by using Base isolation.
Almost Everywhere Convergence of Bochner–Riesz Means On The Heisenberg Group and Fractional Integration On The Dual

Let L denote the sub‐Laplacian on the Heisenberg group Hn and TrLambda:=(1−rL)+λ the corresponding Bochner‐Riesz operator. Let Q denote the homogeneous dimension and D the Euclidean dimension of Hn. We prove convergence a.e. of the Bochner‐Riesz means Trλf as r → 0 for λ > 0 and for all f ∈ Lp(Hn), provided that \frac{Q‐1}{Q} \Big(\frac{1}{2} ‐ \frac{\lambda}{D‐1} \Big) < 1/p \le 1/2. Our proof is based on explicit formulas for the operators ∂ωa with a ∈ C, defined on the dual of Hn by ∂ωaf^:=ωaf^ , which may be of independent interest. Here ω is given by ω(z,u):=|z|2−4iu for all (z,u) ∈ Hn.
Building a Deliberate and Repeatable Program for Developing Leaders of Character

For decades, Military Service Academies have long purported to build leaders of character. Over the last six years, the U.S. Coast Guard Academy has built a repeatable system for leader development with curriculum, evaluation, and assessments. The Loy Institute for Leadership has played a key role in this effort ingraining the Guide to Officer and Leader Development and the LEAD Strategy with the Coast Guard’s 13 Coast Guard Leading Self and Leading Others Competencies by writing curricula across experiential programs, integrating core academic courses, evaluating leadership competencies, and providing an annual cycle for program assessment and review.
Teaching empathy to medical students

Empathy is a core skill essential to patient‐centred care. Yet a decline in empathy throughout undergraduate medical education is well recognised. The mainstay of existing teaching approaches to foster medical students' empathic ability has largely focused on the cognitive domain of empathy within the context of communication skills learning. However, there is growing evidence for educational initiatives that better evoke students' affective emotional responses.
Shielded HMSIW-Based Self-Triplexing Antenna With High Isolation for WiFi/WLAN/ISM Band

This brief presents a novel design of a miniaturized self-triplexing antenna (STA) based on the shielded half-mode substrate integrated waveguide (S-HMSIW) for WiFi/WLAN/ISM-band applications. The S-HMSIW is constructed by assembling one row of vias and an open slot at the open-ended side of the conventional HMSIW. This configuration increases the quality factor and minimizes unwanted radiation loss, which allows for achieving high performance. A modified inverted U-shaped slot is created on the top plane of the cavity to form three different radiating patches, which are excited by three independent <inline-formula> <tex-math notation="LaTeX">$50~\Omega $ </tex-math></inline-formula> microstrip feedlines to operate at three different frequencies. The proposed STA exhibits competitive features such as highly compact size (<inline-formula> <tex-math notation="LaTeX">$0.09\lambda _{g}^{2}$ </tex-math></inline-formula>), high isolation (>33dB), and gain (<inline-formula> <tex-math notation="LaTeX">$>4.8$ </tex-math></inline-formula> dBi), which makes it suitable for handheld communication devices. The simulated and measured circuit responses are in good agreement.