Miracle-dz/UniFAR-FTUs huggingface dataset:
Light hadron spectroscopy with two flavors of O(a)-improved dynamical quarks

We present a high statistics study of the light hadron spectrum and quark masses in QCD with two flavors of dynamical quarks. Numerical simulations are carried out using the plaquette gauge action and the O(a)-improved Wilson quark action at \beta=5.2, where the lattice spacing is found to be a=0.0887(11)fm from \rho meson mass, on a 20^3\times 48 lattice. At each of five sea quark masses corresponding to m_{PS}/m_{V} \simeq 0.8-0.6, we generate 12000 trajectories using the symmetrically preconditioned Hybrid Monte Carlo algorithm. Finite spatial volume effects are investigated employing 12^3 \times 48, 16^3 \times 48 lattices. We also perform a set of simulations in quenched QCD with the same lattice actions at a similar lattice spacing to those for the full QCD runs. In the meson sector we find clear evidence of sea quark effects. The J parameter increases for lighter sea quark masses, and the full QCD meson masses are systematically closer to experiment than in quenched QCD. Careful finite-size studies are made to ascertain that these are not due to finite-size effects. Evidence of sea quark effects is less clear in the baryon sector due to larger finite-size effects. We also calculate light quark masses and find m_{ud}^{MS}(2GeV) =3.223(+0.046/-0.069)MeV and m_s^{MS}(2GeV)=84.5(+12.0/-1.7)MeV which are about 20% smaller than in quenched QCD.
Educating the Net Generation - A Handbook of Findings for Practice and Policy. http://www.netgen.unimelb.edu.au/

It has been widely suggested, and in some respects accepted, that a so-called Net Generation of students is passing through [Australia's] universities. Born roughly between 1980 and 1994 these students have been characterised as being technologically savvy, having grown up in an age where computers, mobile phones and the Internet are part of mainstream culture and society. A number of commentators have even suggested that educators, whom they label 'digital immigrants', need to radically adjust their teaching and learning strategies to accommodate their 'digital native' students, predominantly by adopting and capitalising on the affordances of emerging technologies. This project explored the notion of the Net Generation in higher education to gain a better understanding of: students' and teachers' current technological experiences and preferences; and a range of issues associated with the implementation of emerging technologies in local learning and teaching contexts. This handbook represents a key project outcome. The main messages that have emerged from the project are that: (1) the rhetoric that university students are 'digital natives' and university staff are 'digital immigrants' is not supported; (2) there is great diversity in students' and staff experiences with technology, and their preferences for the use of technology in higher education; (3) emerging technologies afford a range of learning activities that can improve student learning processes, outcomes, and assessment practices; (4) managing and aligning pedagogical, technical and administrative issues is a necessary condition of success when using emerging technologies for learning; (5) innovation with learning technologies typically requires the development of new learning and teaching and technology-based skills, which is effortful for both students and staff; and (6) the use of emerging technologies for learning and teaching can challenge current university policies in learning and teaching and IT.
Real-Time Cooperative Adaptive Robust Relay Beamforming Based on Kalman Filtering Channel Estimation

In this paper, an adaptive channel estimation algorithm is proposed for the multi-user robust relay beamforming problem. We propose a norm-bounded channel uncertainty model for all of the channels. We employ the Extended Kalman Filter (EKF) and the Unscented Kalman Filter (UKF) for joint estimation of channel coefficients and beamforming weights, and propose a Markov model for source-relay and relay-destination channels as well as the beamforming weights in the relays. The channel coefficients and bemforming weights are shown to be well-estimated in order to minimize the total relays power transmission subject to worst-case signal to interference and noise ratio (SINR) criterion at each receiver. As the main contribution of this paper, we propose an adaptive method for simultaneous estimation of the beamforming weights and channel states information, and solving the associated optimization problem by estimation tools. Furthermore, we show that our algorithm outperforms the interior point based methods for non-linear optimization. In comparison to our recent work, a sub-optimal solution to the non-convex robust relay beamforming problem was provided, the proposed method has superior performance and lower complexity.
An Evaluation of Characteristics and Practices Associated with Effective Mentoring within the United States Air Force

Abstract : The US Air Force has recently implemented a policy of assigning supervisors as the mentors of company grade officers. This study investigated the differences in mentoring effectiveness and perceived barriers to mentoring reported by Air Force company grade officers (CGOs), their organizationally assigned mentors (assigned), and CGO selected mentors (voluntary). Results indicated that junior officers believed they had effective mentoring relationships from both assigned and voluntary mentors, but as officers progressed to the rank of captain, they were more likely to seek out mentors outside of their chains of command. Junior officers indicated work related contact time spent on career related mentoring primarily influenced their judgments of effective mentoring. Leader/Member Exchange, Sense of Competence, Proactive Personality, and Performance Ratings influenced perceptions of mentoring from the mentor perspective. More competent, informed CGOs were less likely to perceive barriers to gaining mentors and mentors were less likely to consider the mentoring relationship risky when the CGOs were more junior in rank (lieutenants). Exposure to mentoring related information increased the effectiveness and decreased the perceptions of barriers for both proteges and mentors. Research conclusions suggest the Air Force Mentoring Program is effective for lieutenants, but the mandatory nature of the program may not maximize benefits for captains.
Initial Development and Testing of a Convection-Allowing Model Scorecard

Evaluation of numerical weather prediction (NWP) is critical for both forecasters and researchers. Through such evaluation, forecasters can understand the strengths and weaknesses of NWP guidance, and researchers can work to improve NWP models. However, evaluating high-resolution convection-allowing models (CAMs) requires unique verification metrics tailored to high-resolution output, particularly when considering extreme events. Metrics used and fields evaluated often differ between verification studies, hindering the effort to broadly compare CAMs. The purpose of this article is to summarize the development and initial testing of a CAM-based scorecard, which is intended for broad use across research and operational communities and is similar to scorecards currently available within the enhanced Model Evaluation Tools package (METplus) for evaluating coarser models. Scorecards visualize many verification metrics and attributes simultaneously, providing a broad overview of model performance. A preliminary CAM scorecard was developed and tested during the 2018 Spring Forecasting Experiment using METplus, focused on metrics and attributes relevant to severe convective forecasting. The scorecard compared attributes specific to convection-allowing scales such as reflectivity and surrogate severe fields, using metrics like the critical success index (CSI) and fractions skill score (FSS). While this preliminary scorecard focuses on attributes relevant to severe convective storms, the scorecard framework allows for the inclusion of further metrics relevant to other applications. Development of a CAM scorecard allows for evidence-based decision-making regarding future operational CAM systems as the National Weather Service transitions to a Unified Forecast system as part of the Next-Generation Global Prediction System initiative.
Reduction of DEA-Performance Factors Using Rough Set Theory: An Application of Companies in the Iranian Stock Exchange

he financial management field has witnessed significant developments in recent years to help decision makers, managers and investors, to made optimal decisions. In this regard, the institutions investment strategies and their evaluation methods continuously change with the rapid transfer of information and access to the fi- nancial data. When information is available as several inputs and output factors, the data envelopment analysis (DEA) applies to calculate the efficiency of com- panies. Distinguishing efficient companies from inefficient ones, makes it possi- ble for the financial managers to select suitable portfolios. The discriminating power of DEA depends on the number of companies under evaluation and the number of inputs and outputs. When the number of inputs and outputs are high compared to the number of units, most of the units will be evaluated as efficient, thus the discriminating power of DEA decreases and the results are not reliable. To deal with this problem, the Quick-Reduct algorithm of the rough set theory (RST) was used in this study to reduce inputs or outputs. It should be noted that the advantage of this algorithm is its ability to use negative data.
Composition of motivation profiles at work using latent analysis: theory and evidence

Purpose Drawing from self-determination theory, the present study aims to identify the structures and functions of work motivation profiles by using a person-centered approach and to explore the relationships between work motivations and different work performances in the workplace. Materials and methods The participants in this research are from different provinces in China, such as Beijing, Tianjin, Shandong, and Hebei. The participants work in state-owned enterprises, private enterprises, foreign-funded enterprises, and public institutions. We contacted the head of the human resources department of the company where the employee was located, and then the human resources supervisor sent the questionnaire to the relevant employees for data collection. In Study 1, we obtained a total of 842 valid questionnaires. In Study 2, employee work performance was assessed by immediate supervisors, and we obtained a total of 630 valid matched data. This study identified the structure and function of work motivation profiles using a person-centered approach, ie, latent profile analysis. The analysis of variance approach was used to explore the relationship between work motivations and different work performances in the workplace. Results Using latent profile analysis, we found 5 work motivation profiles: dominant, high-midrange, low-midrange, intrinsic motivation-minor and intrinsic motivation-dominant. The five different profiles varied in the level (quantitative differences: dominant, high-midrange, and low-midrange) and shape (qualitative differences: intrinsic motivation-minor and intrinsic motivation-dominant) of the profile indicators. We found that these profiles differentially predicted employee performance. Our results reveal new insights into work motivations and how different work motivation profiles affect work performance. Conclusion We employed a new perspective to better understand the relations between motivations and work performance under the framework of self-determination theory. We were able to demonstrate that (1) different motivation strategies at work do consistently exist and (2) latent profile membership differentiates employee work performance. Our results show that high performance can be exhibited when an employee’s motivation is the dominant type. High-dominant employees with high intrinsic motivation and low extrinsic motivation exhibit worse task performance. The results of this research show that a person-centered approach can better clarify the complexity of the process regarding how work motivations interact within an employee. The major theoretical contribution of this research is the use of latent profile analysis (LPA) to demonstrate five different subpopulations that can exhibit different combinations of work motivations in the emerging market of China. Second, our results show that identified regulation is important in predicting work performance. Third, we advanced the self-determination theory (SDT) research by exploring the relations between different motivation profiles and work performance.
Effect of the isotope mass on the turbulent transport at the edge of L-mode plasmas in ASDEX Upgrade and JET-ILW

The nature of the turbulent transport in the edge region of ASDEX Upgrade and JET-ILW deuterium (D) and hydrogen (H) L-mode plasmas is studied using local gyro-kinetic simulations. For both devices the turbulence is found to be dominated by an electron drift-wave destabilized by the high collisionality in the plasma edge and strongly related to the kinetic electron dynamics. The isotope ion mass is found to have an important impact on the edge turbulence. In linear simulations, wider eigenfunctions of the electrostatic potential with a lower isotope mass translate in a lower threshold in the normalized electron temperature gradient and in a higher linear growth rate. In non-linear simulations, higher turbulent transport is predicted with a lower isotope mass. The effect of the isotope mass on the turbulent fluxes is enhanced by electromagnetic effects, which are found to be important in non-linear simulations. Remarkably, when considering all the effects in the non-linear simulations and the experimental uncertainties, the predicted fluxes can reproduce the experimental fluxes and their behavior with the isotope mass.
PEMANFAATAN BAHAN AJAR BIOLOGI BERBASIS INTERNET PADA MATERI PEMBELAHAN SEL UNTUK MENIGKATKAN PEMAHAMAN KONSEP, MENUMBUHKAN LITERASI DIGITAL DAN KEMANDIRIAN BELAJAR

Demografi pengguna internet di Indonesia didominasi oleh generasi muda, dimana sebanyak 35,6 juta atau 26,9% dari total 132,7 juta pengguna internet di Indonesia berusia 10 hingga 24 tahun (APJII, 2016). Literasi digital bermakna kemampuan berhubungan dengan informasi hipertekstual, dalam arti membaca non-sekuensial berbasis sistem komputer atau platform digital (Davis & Shaw, 2011). Dengan demikian, kemampuan membaca, memahami dan analisa berbagai sumber digital sangat penting. Mengingat proses belajar yang dilakukan di sekolah memiliki keterbatasan waktu, maka kemandirian belajar dipandang sebagai suatu hal yang mutlak harus dilakukan oleh peserta didik. Kemandirian belajar peserta didik ini perlu dikembangkan, ditingkatkan dan dibiasakan serta dilatih kepada setiap peserta didik. Karakteristik obyek Pembelahan Sel sulit untuk bisa ditemukan atau dihadirkan secara nyata pada peserta didik, sehingga untuk mempelajari proses Pembelahan Sel, selama ini guru lebih banyak menggunakan media gambar, charta atau model.
Impact of particle concentration and out-of-range sizes on the measurements of the LISST

The instrument LISST (laser in situ scattering and transmissiometry) has been widely used for measuring the size of oil droplets in relation to oil spills and sediment particles. Major concerns associated with using the instrument include the impact of high concentrations and/or out-of-range particle (droplet) sizes on the LISST reading. These were evaluated experimentally in this study using monosized microsphere particles. The key findings include: (1) When high particle concentration reduced the optical transmission (OT) to below 30%, the measured peak value tended to underestimate the true peak value, and the accuracy of the LISST decreased by ~8% to ~28%. The maximum concentration to reach the 30% OT was about 50% of the theoretical values, suggesting a lower concentration level should be considered during the instrument deployment. (2) The out-of-range sizes of particles affected the LISST measurements when the sizes were close to the LISST measurement range. Fine below-range sizes primarily affected the data in the lowest two bins of the LISST with >75% of the volume at the smallest bin. Large out-of-range particles affected the sizes of the largest 8–10 bins only when very high concentration was present. The out-of-range particles slightly changed the size distribution of the in-range particles, but their concentration was conserved. An approach to interpret and quantify the effects of the out-of-range particles on the LISST measurement was proposed.
Optimization of deep-fat frying conditions and quality attributes of orange-fleshed sweetpotato crisps by response surface methodology

Abstract Response surface methodology with a central composite design was applied to study the effect of frying temperature (145–164°C) and time (2.4–6.0 min) on some quality attributes of crisps from two varieties of orange-fleshed sweetpotato (OFSP) roots [Mothers’ Delight (MD) and King J (KJ)]. Response models and optimized frying conditions were generated. Frying temperature and time significantly (p < 0.01) influenced moisture content (MC) and crispiness for both varieties (R2 = 0.87–0.95). Total carotenoids (TC), L*, orange and brown colours for MD variety, and a* for KJ variety, were also significantly (p < 0.05) affected but the trend varied between the varieties (R2 = 0.82–0.94). MD crisps had higher TC which reduced with increase in frying conditions. Orange colour of crisps which increased for MD but decreased for KJ, with increase in frying conditions, was an important sensory quality index. At the optimum frying conditions, 151.27 ⁰C/4.20 min for MD and 146.36 ⁰C/4.20 min for KJ, MD crisps had lower MC (2.85%) but higher oil content (30.04%), total carotenoids (3752.33 µg/100 g), crispiness (8.84) and orange colour (8.92) than KJ. Optimized MD crisps had lower sensory oiliness and higher consumer acceptance.
Groundwater Quality Assessment for Irrigation Purposes: A case study of Minna, Niger State, Northcentral Nigeria

The groundwater quality in Minna, Niger State, North-central Nigeria was assessed for irrigational purposes. Fifty groundwater samples were collected and analyzed for major cations and anions. Prior to this, physical parameters such as pH, Electrical Conductivity (EC) and Total Dissolved Solids (TDS) were determined insitu using standard equipment. The laboratory results of the major ions were converted to either meq/l or % and used to evaluate the suitability of groundwater systems in Minna for irrigation using Sodium Adsorption Ratio (SAR), Magnesium Adsorption Ratio (MAR), Soluble Sodium Percentage (SSP), Residual Sodium Bicarbornate (RSBC), Permeability Index (PI) and Kelly’s Ratio (KR) concepts. The concentration of pH varied from 6.49 to 7.25 with an average value of 6.87. The TDS value ranged from 38.10 mg/l to 258.40 mg/l with a mean value of 67.85 mg/l. The value of EC is in the order of 75.50 µs/cm3 to 420.20 20 µs/cm3 and an average value of 111.30 µs/cm3. The concentration of these physical parameters fell within the permissible limit of 6.50-8-50 for pH, 500.00 mg/l for TDS and 1000.00 µs/cm3 for EC postulated by World Health Organization (WHO) and Nigerian Standard for Drinking Water Quality (NSDWQ). The value of SAR ranged between 0.00 to 2.19 with a mean value of 0.35 while the value of MAR varied from 12.21 % to 74.29 % with an average value of 32.05 %. The value of SSP ranged from 4.48 % to 75.22 % with a mean value of 40.46 % while RSBC values varied from -0.95 meq/l to 2.55 meq/l with an average value of 0.25 meq/l. The value of PI varied between 35.61 % to 388.86 % with a mean value of 108.19 % while the value of KR ranged from 0.00 meq/l to 2.45 meq/l with an average value of 0.43 meq/l. The value of the computed irrigation indices when compared with some known standards revealed that the groundwater systems from the study area can be exploited and used as irrigation water without any negative impact on the soil and the crop. Keywords: Evaluation, Groundwater Quality, Irrigation, Minna, Niger State
Color-allowed bottom baryon to 
s
-wave and 
p
-wave charmed baryon nonleptonic decays

We study color allowed bottom baryon to $s$-wave and $p$-wave charmed baryon non-leptonic decays in this work. The charmed baryons include spin-1/2 and spin-3/2 states. Explicitly, we consider $\Lambda_b\to \Lambda^{(*,**)}_c M^-$, $\Xi_b\to\Xi_c^{(**)} M^-$ and $\Omega_b\to\Omega^{(*,**)}_c M^-$ decays with $M=\pi, K, \rho, K^*, a_1, D, D_s, D^*, D^*_s$, $\Lambda^{(*,**)}_c=\Lambda_c, \Lambda_c(2595), \Lambda_c(2625), \Lambda_c(2765), \Lambda_c(2940)$, $\Xi_c^{(**)}=\Xi_c, \Xi_c(2815), \Xi_c(2790)$ and $\Omega^{(*,**)}_c=\Omega_c, \Omega_c(2770), \Omega_c(3050), \Omega_c(3090), \Omega_c(3120)$. There are six types of transitions, namely, (i) ${\cal B}_b({\bf \bar 3_f},1/2^+)$ to ${\cal B}_c({\bf \bar 3_f},1/2^+)$, (ii) ${\cal B}_b({\bf 6_f},1/2^+)$ to ${\cal B}_c({\bf 6_f},1/2^+)$, (iii) ${\cal B}_b({\bf 6_f},1/2^+)$ to ${\cal B}_c({\bf 6_f},3/2^+)$, (iv) ${\cal B}_b({\bf 6_f},1/2^+)$ to ${\cal B}_c({\bf 6_f},3/2^-)$, (v) ${\cal B}_b({\bf \bar 3_f},1/2^+)$ to ${\cal B}_c({\bf \bar 3_f},1/2^-)$, and (vi) ${\cal B}_b( {\bf \bar 3_f},1/2^+)$ to ${\cal B}_c({\bf \bar 3_f},3/2^-)$ transitions. Types (i) to (iii) involve spin 1/2 and 3/2 $s$-wave charmed baryons, while types (iv) to (vi) involve spin 1/2 and 3/2 $p$-wave charmed baryons. The transition form factors are calculated in the light-front quark model approach. All of the form factors in the $1/2\to 1/2$ and $1/2 \to 3/2$ transitions are extracted, and they are found to reasonably satisfy the relations obtained in the heavy quark limit, as we are using heavy but finite $m_b$ and $m_c$. Using naive factorization, decay rates and up-down asymmetries of the above modes are predicted and can be checked experimentally. The study on these decay modes may shed light on the quantum numbers of $\Lambda_c(2765)$, $\Lambda_c(2940)$ $\Omega_c(3050)$, $\Omega_c(3090)$ and $\Omega_c(3120)$.
Searching for dark matter sterile neutrinos in the laboratory

If the dark matter of the Universe is made of sterile neutrinos with mass in the keV region, it can be searched for with the help of x-ray satellites. We discuss the prospects of laboratory experiments that can be competitive and complementary to space missions. We argue that the detailed study of β decays of tritium and other nuclei with the help of cold target recoil ion momentum spectroscopy can potentially enter into an interesting parameter range and even supersede the current astronomical bounds on the properties of the dark matter sterile neutrinos. © 2007 The American Physical Society.
High-field conduction current characteristics of polyimide film

The field dependent conduction current of both Dupont original and corona-resistant polyimide films before and after corona-aged 8 hours at 10 kV/mm and 20 kV/mm electric field, and at different temperatures was measured respectively. The results show that the electrical degradation threshold of original and corona-resistance polyimide film is 35 kV/mm and 45 kV/mm, and decreases with the increasing of aging electric field. With the increase of temperature, the electric degradation threshold of original film increases and of the corona-resistant film decreases. The conduction current of corona-resistant polyimide film is larger by about one order of magnitude than that of original one. The trap energy level of 0.9eV and 0.7eV was derived from Arrehnius plot respectively.