Miracle-dz/UniFAR-FTUs huggingface dataset:
Impact Of Informal Communication On Corporate Creative Performance

Creativity is crucial to the performance of R&D teams. Since the creative work, the team needs to connect and integrate the opinions of multiple employees the team’s relation is a crucial determinant of creative performance. The purpose of this study is to identify the effects of informal communication on organizational creativity. In this study, informal communication is divided into mentoring or coaching system and learning organization. An empirical analysis of this study found that team creativity requires informal communication. In addition, research has shown that positive effect of mentoring or coaching on creative performance was clearer when firm size was large. Finally, mentoring or coaching has a positive impact on creative performance as the employee ability is higher. The results of this study provide implications for strategies to enhance organizational creativity by demonstrating that informal communication has a significant relationship with organizational creativity.
Therapeutic Effects of Heterotrigona itama (Stingless Bee) Bee Bread in Improving Hepatic Lipid Metabolism through the Activation of the Keap1/Nrf2 Signaling Pathway in an Obese Rat Model

Bee bread (BB) has traditionally been used as a dietary supplement to treat liver problems. This study evaluated the therapeutic effects of Heterotrigona itama BB from Malaysia on obesity-induced hepatic lipid metabolism disorder via the regulation of the Keap1/Nrf2 pathway. Male Sprague Dawley rats were fed with either a normal diet or high-fat diet (HFD) for 6 weeks to induce obesity. Following 6 weeks, obese rats were treated either with distilled water (OB group), BB (0.5 g/kg body weight/day) (OB + BB group) or orlistat (10 mg/kg body weight/day) (OB + OR group) concurrent with HFD for another 6 weeks. BB treatment suppressed Keap1 and promoted Nrf2 cytoplasmic and nuclear translocations, leading to a reduction in oxidative stress, and promoted antioxidant enzyme activities in the liver. Furthermore, BB down-regulated lipid synthesis and its regulator levels (SIRT1, AMPK), and up-regulated fatty acid β-oxidation in the liver of obese rats, being consistent with alleviated lipid levels, improved hepatic histopathological changes (steatosis, hepatocellular hypertrophy, inflammation and glycogen expression) and prevented progression to non-alcoholic steatohepatitis. These results showed the therapeutic potentials of H. itama BB against oxidative stress and improved lipid metabolism in the liver of obese rats possibly by targeting the Keap1/Nrf2 pathway, hence proposing its role as a natural supplement capable of treating obesity-induced fatty liver disease.
Group and phase velocity mismatch fringes in triple sum-frequency spectroscopy

The effects of group and phase velocity mismatch are well-known in optical harmonic generation, but the non-degenerate cases remain unexplored. In this work we develop an analytic model which predicts velocity mismatch effects in non-degenerate triple sum-frequency mixing, TSF. We verify this model experimentally using two tunable, ultrafast, short-wave-IR lasers to demonstrate spectral fringes in the TSF output from a 500 $\mu$m thick sapphire plate. We find the spectral dependence of the TSF depends strongly on both the phase velocity and the group velocity differences between the input and output fields. We define practical strategies for mitigating the impact of velocity mismatches.
MeV scale leptonic force for cosmic neutrino spectrum and muon anomalous magnetic moment

Characteristic patterns of cosmic neutrino spectrum reported by the IceCube collaboration and long-standing inconsistency between theory and experiment in muon anomalous magnetic moment are simultaneously explained by an extra leptonic force mediated by a gauge field with a mass of the MeV scale. With different assumptions for redshift distribution of cosmic neutrino sources, diffuse neutrino flux is calculated with the scattering between cosmic neutrino and cosmic neutrino background through the new leptonic force. Our analysis sheds light on a relation among lepton physics at the three different scales, PeV, MeV, and eV, and provides possible clues to the distribution of sources of cosmic neutrino and also to neutrino mass spectrum.
IMPLEMENTASI MENINGKATKAN HASIL PEMBELAJARAN TEKNIK DASAR PENCAK SILAT MELALUI MODEL PEMBELAJARAN MOVE COLOUR PADA SISWA PUTRA KELAS 4 DAN 5 SD IT ABU JAFAR TAHUN AJARAN 2020/2021

Abstrak Pengabdian Masyarakat ini merupakan Pengabdian Masyarakat Tindakan Kelas (PTK). Pengabdian Masyarakat ini dilaksanakan dalam dua Siklus, dengan tiap Siklus terdiri atas Perencanaan, Pelaksanaan Tindakan, Observasi, dan Refleksi. Subjek Pengabdian Masyarakat terdiri siswa putra kelas 4 dan 5 SD It Abu Jafar tahun ajaran 2020/2021 berjumlah 32 siswa. Sumber data berasal dari Siswa. Pengumpulan data dengan tes unjuk kerja Ketrampilan teknik dasar pencak silat (Psikomotor), Observasi pengamatan Sikap Siswa (Afektif), dan Pengetahuan Siswa (Kognitif) yang di Rekapitulasikan selama kegiatan Proses pembelajaran berlangsung melalui model pembelajaran Move Colour. Teknik analisis data menggunakan analisis Diskriptif terhadap hasil ketuntasan hasil pembelajaran yang di dapatkan siswa. Pada Pengabdian Masyarakat kondisi awal didapatkan hasil ketuntasan pembelajaran siswa hanya 31,25 % dengan rata-rata nilai 68,68 (dibulatkan 68,7) dan setelah diadalan Tindakan I menghasilkan suatu data peningkatan siswa dalam pembelajaran teknik dasar pencak silat melalui model pembelajaran Move Colour. Ketuntasan hasil pembelajaran teknik dasar pencak silat dari Kondisi Awal ke Siklus I mengalami peningkatan sebesar 31,25 % menjadi 62,50% dengan rata-rata nilai 74,43. Dari Siklus I ke Siklus II mengalami peningkatan sebesar 18,75 % menjadi 81,25 %. Berdasarkan hasil Pengabdian Masyarakat diperoleh simpulan bahwa: melalui model pembelajaran Move Colour dapat meningkatkan hasil pembelajaran teknik dasar pencak silat pada siswa putra kelas 4 dan 5 SD It Abu Jafar tahun ajaran 2020/2021.
Measuring the stellar wind parameters in IGR J17544-2619 and Vela X-1 constrains the accretion physics in Supergiant Fast X-ray Transient and classical Supergiant X-ray Binaries

Classical Supergiant X-ray Binaries (SGXBs) and Supergiant Fast X-ray Transients (SFXTs) are two types of High-mass X-ray Binaries (HMXBs) that present similar donors but, at the same time, show very different behavior in the X-rays. The reason for this dichotomy of wind-fed HMXBs is still a matter of debate. Among the several explanations that have been proposed, some of them invoke specific stellar wind properties of the donor stars. Only dedicated empiric analysis of the donors' stellar wind can provide the required information to accomplish an adequate test of these theories. However, such analyses are scarce. To close this gap, we perform a comparative analysis of the optical companion in two important systems: IGR J17544-2619 (SFXT) and Vela X-1 (SGXB). We analyse the spectra of each star in detail and derive their stellar and wind properties. We compare the wind parameters, giving us an excellent chance of recognizing key differences between donor winds in SFXTs and SGXBs. We find that the stellar parameters derived from the analysis generally agree well with the spectral types of the two donors: O9I (IGR J17544-2619) and B0.5Iae (Vela X-1). An important difference between the stellar winds of the two stars is their terminal velocities v_inf=1500km/s in IGR J17544-2619 and v_inf=700km/s in Vela~X-1, which has important consequences on the X-ray luminosity of these sources. Their specific combination of wind speed and pulsar spin favours an accretion regime with a persistently high luminosity in Vela X-1, while it favours an inhibiting accretion mechanism in IGR~J17544-2619. Our study demonstrates that the wind relative velocity is critical in the determination of the class of HMXBs hosting a supergiant donor, given that it may shift the accretion mechanism from direct accretion to propeller regimes when combined with other parameters.
Association of DEXA with EDX in Evaluation of Inorganic Bone Components After Application of Nano bone For Repair of Bone Defect

Aim: The aim of this study is to correlate DEXA and EDX in assessment the varia-tions in chemical composition in terms of the main elements comprising the bone mineral {calcium (Ca), and phosphorus (P)} after application of Nano bone for Repair of bone defect. Subjects and Methods: A bone drill defect was created in the right tibia (two holes in each tibia) of 48 rabbits; upper hole was left empty while the lower hole was packed with NanoBone. 24 animals were sacrificed 2 weeks after surgery; the remaining animals were sacrificed after 4 weeks. Half of the bone specimens prepared for the routine laboratory processing, histological and histomorphometric, while The remaining specimens were scanned by Dual-energy X-ray absorptiometry (DEXA) for bone mineral density measurement and then used for bone mineral composition determination by Energy Dispersive X-ray Analyses (EDX). The measurements of DEXA and EDX have been compared after that, data were submitted to ANOVA and Tukey’s test. Results: DEXA showed a strong positive correlation with EDX and histological analysis. Conclusion: Energy-dispersive X-ray microanalysis (EDX) is a useful quan-titative tool for the analysis of Ca and P in bone in a non-invasive way. non-collag-enous proteins and proteoglycans account for a small total weight of organic component, though they still have an important role in osteo-blast differentiation and tissue mineralization (2) . The mineralized phase of the bone is composed of hydroxyl- apatite [Ca,o (PO4)6(OH):] in
Comparison of Gaia DR2 Parallaxes of Stars with VLBI Astrometry

We compare the parallaxes of stars from VLBI astrometry in the literature to those in the Gaia DR2 catalog. Our full sample contains young stellar objects, evolved AGB stars, pulsars, and other radio stars. Excluding AGB stars, which show significant discrepancies between Gaia and VLBI parallaxes, and stars in binary systems, we obtain an average, systematic, parallax offset of −75 ± 29 μas for Gaia DR2, consistent with their estimate of a parallax zero-point between −100 and 0 μas.
Morphology and metallicity of the Small Magellanic Cloud using RRab stars

We present a study of three-dimensional structure of the Small Magellanic Cloud (SMC). The $V$- and $I$-band light curves of the fundamental mode RR Lyrae stars (RRab) obtained by the Optical Gravitational Lensing Experiment (OGLE)-III project were utilized in order to comprehend the SMC structure. The $[Fe/H]-P-\phi_{31}$ relation of \citet{jurc96} is exploited to obtain the metallicities. From the three-dimensional RRab distance distributions, northeast (NE) arm and main body of the galaxy is identified. Combining metallicities with spatial distribution of these tracers, no radial metallicity gradient in the SMC has been detected. Dividing the entire sample into three parts: northeastern (NE), central and southwestern (SW), we find that the central part has a significantly larger line of sight depth as compared to rest of the parts, indicating that the SMC may have a bulge. Results obtained from the $I$-band data seem to be reliable and were further substantiated using the \citet{smol05} relation. Distribution of SMC RRab stars were modeled as a tri-axial ellipsoid. Errors in structural parameters of the SMC ellipsoid were obtained from Monte Carlo simulations. We estimated the axes ratios of the galaxy as $1.00\pm 0.000:1.310\pm 0.029:8.269\pm0.934$, the inclination of the longest axis with line of sight $i = 2^{\circ}. 265\pm 0^{\circ}. 784$, and the position angle of the line of nodes $\theta_{\text{lon}}=74^{\circ}. 307\pm 0^{\circ}. 509$ from the variance weighted $I$-band determinations.
A 4 × 4 Biosensor Array With a 42-μW/Channel Multiplexed Current Sensitive Front-End Featuring 137-dB DR and Zeptomolar Sensitivity

This article presents a multiplexed current sensitive readout for label-free zeptomolar-sensitive detectors realized with large-area electrolyte-gated organic thin-film transistors (EGOFETs). These highly capacitive biosensors are multiplexed using an organic thin-film transistor (OTFT) line driver and OTFT switches and interfaced to a 65-nm Si CMOS, low-power, pA-sensitive front-end. The Si chip performs analog-to-digital conversion and data transmission to a microcontroller too. A current domain interface is used to transmit the signals coming from multiple biosensors to the 1.2-V supply CMOS Si-IC via the 30-V supply OTFT electronics. Exploiting an analog module implemented in the Si-IC, the EGOFETs are precisely biased, even in the presence of a large OTFT multiplexer resistance. The CMOS current sensitive front-end achieves a dynamic range (DR) of 137 dB and a power consumption of 42- $\mu \text{W}$ per channel reaching a state-of-the-art DR-power-bandwidth FOM of 208 dB. The front-end has been designed with a first-stage programmable-gain, active-feedback transimpedance amplifier topology that, contrary to common current-sensitive front-end solutions, is not affected by the sensor capacitance. The system has been validated with different concentrations of human IgG and IgM proteins using both a single sensor and a 4 $\times $ 4 array of EGOFETs. Thanks to the multiplexing strategy and the low costs of its modules, the system here presented has the potential to enable widespread use of precision diagnostic with extreme sensitivity even in point-of-care and low-resource settings.
Oxygen abundance determination of B-type stars with the O i 7771–5 Å lines

Oxygen abundances of 34 B-type stars in the effective temperature range of Teff~10000-28000K with diversified rotational velocities (vesini~ 0-250km/s) were determined from the OI triplet lines at 7771-5A, with an aim to examine whether this OI feature can be a reliable abundance indicator for such high-temperature stars including rapid rotators. It revealed that the required non-LTE abundance correction is distinctly large (ranging from ~-0.6dex to ~-1.7dex) and its consideration is indispensable. On the condition that the non-LTE effect is taken into account, this triplet is a useful O abundance indicator (with a precision of ~200mA). In contrast, it is not adequate for abundance derivation for stars at Teff >~25000K, where its strength rapidly drops down toward a hardly detectable level (except for sharp-lined stars) and its sensitivity to Teff or log g becomes considerably large. The resulting non-LTE oxygen abundances turned out to be almost normal (i.e., near-solar around ~8.7-8.8 within +/-~0.2dex) for most stars without any dependence upon projected rotational velocity as well as luminosity (or mass), which is consistent with the prediction of recent stellar evolution calculations.
Mixed-Signal Building Blocks for Communication Systems Using Flexible Oxide TFT Technology

This article reports two important mixed-signal building blocks using unipolar oxide thin-film transistors (TFTs) on a 30-<inline-formula> <tex-math notation="LaTeX">$\mu \text{m}$ </tex-math></inline-formula>-thick polymide substrate, which find potential application in communication systems. These blocks include a low-voltage bootstrapped (BS) switch and a latch-type comparator designed using a device channel length of <inline-formula> <tex-math notation="LaTeX">$2~\mu \text{m}$ </tex-math></inline-formula>. Functional demonstration of these blocks has been carried out from measurements under normal ambient conditions with a load of 10 <inline-formula> <tex-math notation="LaTeX">$\text{M}\Omega ||12$ </tex-math></inline-formula> pF at a supply voltage (<inline-formula> <tex-math notation="LaTeX">$V_{\text {DD}}$ </tex-math></inline-formula>) not exceeding 3 V. While the BS switch shows a linear ON-resistance of 40 <inline-formula> <tex-math notation="LaTeX">$\text{k}\Omega $ </tex-math></inline-formula>, at a <inline-formula> <tex-math notation="LaTeX">$V_{\text {DD}}$ </tex-math></inline-formula> of 2 V, without any voltage drop across it, the proposed comparator has shown a very low offset of 10 mV with a decision time of <inline-formula> <tex-math notation="LaTeX">$4~\mu \text{s}$ </tex-math></inline-formula>. These blocks help in expanding the application of oxide TFT technology in communication systems to design the binary amplitude-shift keying (BASK) modulator and demodulator circuits.
Smeared BTZ black hole from space noncommutativity

We study a novel phenomena of smearing of black hole horizons from the effect of space noncommutativity. We present an explicit example in AdS3 space, using the Chern-Simons formulation of gravity. This produces a smeared BTZ black hole which goes beyond the classical spacetime unexpectedly and there is no reality problem in our approach with the gauge group U(1, 1) × U(1, 1). The horizons are smeared, due to a splitting of the Killing horizon and the apparent horizon, and there is a metric signature change to Euclidean in the smeared region. The inner boundary of the smeared region acts as a trapped surface for timelike particles but the outer as a classical barrier for ingoing particles. The lightlike signals can escape from or reach the smeared region in a finite time, which indicates that the black hole is not so dark, even classically. In addition, it is remarked that the Hawking temperature can not be defined by the regularity in the Euclidean geometry except in the non-rotating case, and the origin can be smeared by a new (apparent) horizon.
Effective Microorganisms and Glass Nanopowders from Waste Bottle Inclusion on Early Strength and Microstructure Properties of High-Volume Fly-Ash-Based Concrete

In concrete production, the use of high-volume fly ash (FA) as the cement substitute became interesting to achieve more sustainable and eco-friendly construction materials. However, concrete produced using high volumes of FA as cement substitute suffers from various limitations such as low strength at early ages. Considering the engineering solutions and economy of FA-included concrete, it has become vital to address such issues. In this perception, some concrete mixes were designed using more abundant and low-cost local waste materials such as waste glass bottle nanopowders (WGBNPs) and effective microorganisms (EMs) to determine the feasibility of compensating for the strength loss at early ages due to FA inclusion. The proposed mixes contained 10% of EMs as water replacement, 50% of FA, and various percentages of WGBNPs as cement replacement. The effects of EMs and WGBNPs inclusion on the early strength and microstructure properties of the produced FA-based concrete mixes were determined. The results show that the strength indexes of the concrete at all test ages were improved due to WGBNP and EM incorporation. At almost all curing ages, the mechanical performance of the concrete made with 10% EMs and 4% WGBNPs was comparable to that of normal concrete (control mix), wherein the mix containing 6% WGBNPs outperformed the control mix. The microstructure analysis of the studied mixes revealed an increase in the hydration products, structural compactness, and homogeneity due to the synergy of WGBNPs and EMs, especially the specimen made using 10% EMs and 6% WGBNPs. It is established that the proper utilization of EMs and WGBNPs in FA-based concrete can be beneficial for waste recycling and landfill problems, thus lowering environment pollution.
Effect of dust grain porosity on the appearance of protoplanetary disks

We theoretically analyze protoplanetary disks consisting of porous dust grains. In the analysis of observations of protoplanetary disks the dust phase is often assumed to consist of spherical grains, allowing one to apply the Mie scattering formalism. However, in reality, the shape of dust grains is expected to deviate strongly from that of a sphere. We investigate the influence of porous dust grains on the temperature distribution and observable appearance of protoplanetary disks for dust grain porosities of up to 60 %. We performed radiative transfer modeling to simulate the temperature distribution, spectral energy distribution, and spatially resolved intensity and polarization maps. The optical properties of porous grains were calculated using the method of discrete dipole approximation. We find that the flux in the optical wavelength range is for porous grains higher than for compact, spherical grains. The profile of the silicate peak at 9.7 um strongly depends on the degree of grain porosity. The temperature distribution shows significant changes in the direction perpendicular to the midplane. Moreover, simulated polarization maps reveal an increase of the polarization degree by a factor of about four when porous grains are considered, regardless of the disk inclination. The polarization direction is reversed in selected disk regions, depending on the wavelength, grain porosity, and disk inclination. We discuss several possible explanations of this effect and find that multiple scattering explains the effect best. Porosity influences the observable appearance of protoplanetary disks. In particular, the polarization reversal shows a dependence on grain porosity. The physical conditions within the disk are altered by porosity, which might have an effect on the processes of grain growth and disk evolution.
Green Extracellular Synthesis of Silver Nanoparticles by Pseudomonas alloputida, Their Growth and Biofilm-Formation Inhibitory Activities and Synergic Behavior with Three Classical Antibiotics

Bacterial resistance to antibiotics is on the rise and hinders the fight against bacterial infections, which are expected to cause millions of deaths by 2050. New antibiotics are difficult to find, so alternatives are needed. One could be metal-based drugs, such as silver nanoparticles (AgNPs). In general, chemical methods for AgNPs’ production are potentially toxic, and the physical ones expensive, while green approaches are not. In this paper, we present the green synthesis of AgNPs using two Pseudomonas alloputida B003 UAM culture broths, sampled from their exponential and stationary growth phases. AgNPs were physicochemically characterized by transmission electron microscopy (TEM), total reflection X-ray fluorescence (TXRF), infrared spectroscopy (FTIR), dynamic light scattering (DLS), and X-ray diffraction (XRD), showing differential characteristics depending on the synthesis method used. Antibacterial activity was tested in three assays, and we compared the growth and biofilm-formation inhibition of six test bacteria: Bacillus subtilis, Escherichia coli, Klebsiella pneumoniae, Pseudomonas aeruginosa, Staphylococcus aureus, and Staphylococcus epidermidis. We also monitored nanoparticles’ synergic behavior through the growth inhibition of E. coli and S. aureus by three classical antibiotics: ampicillin, nalidixic acid, and streptomycin. The results indicate that very good AgNP activity was obtained with particularly low MICs for the three tested strains of P. aeruginosa. A good synergistic effect on streptomycin activity was observed for all the nanoparticles. For ampicillin, a synergic effect was detected only against S. aureus. ROS production was found to be related to the AgNPs’ antibacterial activity.