Miracle-dz/UniFAR-FTUs huggingface dataset:
Prediction of Large Enhancement of Electron Mobility in Direct Gap Ge1−xSnx Alloy

Group IV semiconductor‐based alloy Ge1−xSnx can be grown on Si platform and a crossover from indirect (L valleys) to direct gap (Γ valley) occurs for x > 0.08. The direct gap alloy shows promise for use in high‐speed electronic and photonic devices. An earlier study predicted that the electron mobility in the alloy would increase by a few orders of magnitude above the value for pure Ge. In that work, however, electrons were assumed to occupy only the low effective mass Γ valley and only the deformation potential acoustic phonon and alloy scatterings were considered. In the present work, we give a more realistic estimate of the values of electron mobility in direct gap GeSn alloy, considering the Γ and L valleys and the phonon (deformation potential acoustic, optical and intervalley), alloy, and impurity scatterings. The effect of strain, both tensile and compressive, on the mobility is also studied. It is found that for higher alloy composition and suitable strain, mobility values ∼2 × 105 cm−2/V · s, more than 50 times higher than the value in pure Ge (3900 cm2/V · s) may be achieved. This is attributed to increased separation between Γ and L valleys and consequent reduction in intervalley scattering.
Assessing athlete readiness using physical, physiological, and perceptual markers

This systematic review and meta-analysis evaluated the validity of tests / markers of athletic readiness to predict physical performance in elite team and individual sport athletes. Ovid MEDLINE, Embase, Emcare, Scopus and SPORT Discus databases were searched from inception until 15 March 2023. Included articles examined physiological and psychological tests / markers of athletic readiness prior to a physical performance measure. 165 studies were included in the systematic review and 27 studies included in the meta-analysis. 20 markers / tests of athletic readiness were identified, of which five were meta-analysed. Countermovement jump (CMJ) jump height had a large correlation with improved 10m sprint speed / time (r = 0.69; p = .00), but not maximal velocity (r = 0.46; p = .57). Non-significant correlations were observed for peak power (r = 0.13; p = .87) and jump height (r = 0.70; p = .17) from squat jump, and 10m sprint speed / time. CMJ jump height (r = 0.38; p = .41) and salivary cortisol (r = -0.01; p = .99) did not correlate with total distance. Sub-maximal exercise heart rate (r = -0.65; p = .47) and heart rate variability (r = 0.66; p = .31) did not correlate with Yo-Yo Intermittent Recovery Test 1 performance. No correlation was observed between blood C-reactive protein and competition load (r = 0.33; p = .89). CMJ jump height can predict sprint and acceleration qualities in elite athletes. The validity of the other readiness tests / markers meta-analysed warrants further investigation.
Analysing Dynamical Phenomenons: Introduction to MBSim

The current paper gives an overview of the simulation tool MBSim (http://mbsim.berlios.de), which is li-cenced under the GNU Lesser General Public License. Point of departure is the formulation of the mathematical equations of oscillatory dynamical systems with uni-and bilateral frictional constraints and impacts. The algorithmic treatment with event-detecting and timestepping integration is the basis for an efﬁcient so-lution strategy. From a software architecture point of view, the components and the connections in-between are classes in C++. The object-oriented design and the corresponding modelling possibilities with XML-input schemes as well as the external visualisation tool OpenMBV (http://openmbv.berlios.de) show a modular structure for universal usage. Altogether, the simulation program and the computable results allow the detailed analysis of complex dynamical systems.
FORMULASI DAN UJI AKTIVITAS ANTIOKSIDAN SEDIAAN BODY BUTTER EKSTRAK ETANOL UMBI BIT (Beta vulgaris L.) DENGAN METODE DPPH

Beetroot (Beta vulgaris L.) is a plant that contains betasianin (purple pigment) and betasantin (yellow pigment) which makes the color of beets dark red to purplish. The fruit contains a small amount of flavonoid compounds (anthocyanins) which have antioxidant activity. This study aims to develop a body butter formulation of ethanol extract of beetroot (Beta vulgaris L.) as an antioxidant and to see the antioxidant activity with the DPPH immersion method. Extraction of beets used the maceration method using 70% ethanol as a solvent. The antioxidant activity test formula was measured using UV-Vis spectrophotometry with a wavelength of 520 nm. The results showed that formula I obtained an IC50 value of 240 µg/mL (AAI = 0.16), formula II obtained an IC50 value of 139.93 µg/mL (AAI = 0.28), and formula III obtained an IC50 value of 133.34 µg/mL (AAI = 0.29). The higher the antioxidant concentration of the fruit ethanol extract body butter preparation, the smaller the IC50 value, and the greater the AAI value obtained. Based on the results obtained, the antioxidants from the beetroot ethanol extract body butter were still able to fight free radicals at a weak level.
On maximization of the expectation-to-deviation ratio of a random variable

are used, and the problem is considered of maximizing Sp(X) over some set of random variables. For example, in mathematical finance S2 is the well-known Sharpe ratio (see [6] and [7]). However, the functionals Sp are not monotone, which does not agree with the natural interpretation of an optimality criterion: the inequality X > Y a.s. does not in general imply the inequality Sp(X) > Sp(Y ). In this connection, one can consider instead of the Sp their monotone modifications:
Aroma Identification and Classification in 18 Kinds of Teas (Camellia sinensis) by Sensory Evaluation, HS-SPME-GC-IMS/GC × GC-MS, and Chemometrics

Tea (Camellia sinensis) is one of the most popular beverages worldwide. Many types of tea products continuously emerge in an endless stream; so, the classification of tea becomes more difficult. Aroma is a vital indicator of tea quality. The present study deals with the identification of aroma compounds in 18 different kinds of tea belonging to three typical tea varieties, including green tea, oolong tea, and black tea, using GC-IMS and GC × GC-O-MS. Moreover, the clustering of all 18 tea samples and the in depth correlation analysis between sensory evaluation and instrumental data were performed using the PCA and OPLS-DA. The results revealed that in all 18 kinds of tea, a total of 85 aroma compounds were detected by GC-IMS, whereas 318 were detected by GC × GC-O-MS. The PCA result revealed that green tea, oolong tea, and black tea could be clearly separated based on their peak areas. The OPLS-DA result showed that a total of 49 aroma compounds with VIP value > 1.0 could be considered as the potential indicators to quickly classify or verify tea types. This study not only compared the aroma differences across different types of teas, but also provided ideas for the rapid monitoring of tea quality and variety.
Ethical dilemmas of the medical sales representatives in pharmaceutical marketing and sales

This phenomenological study investigated the ethical dilemmas of Medical Sales Representatives (MSRs) in pharmaceutical marketing and sales in the province of Laguna. Specifically, this research utilized transcendental phenomenology and applied triangulation of the three methods: observation, interviews focus group discussion. After executing the identifying the significant statements, bracketing, horizontalization, and theme clustering, the researcher revealed seventeen (17) themes. As to the ethical dilemmas experienced by MSRs in pharmaceutical marketing and sales, the concept branched out to nine thematic concepts of their shared reality. Theme 1: Personal Growth and Professional Development, Theme 2: Product Knowledge and Interpersonal Skills, Theme 3: Be Knowledgeable, Friendly, and Patient, Theme 4: Understanding the Clients' Needs, Preferences, and Interests, Theme 5: Be Focused, Good Communicator, and Compassionate, Theme 6: Flexibility and Opportunity, Theme 7: Rejections and Failure, Theme 8: Satisfaction and Patient-Care, and Theme 9: Effectivity and Affordability. From their shared experiences regarding how the MSRs face ethical dilemmas in pharmaceutical marketing and sales, the researcher developed eight sensible themes: Theme 10: Handling and Dealing with Various Aspects, Theme 11: Keeping Patient with Positive Mindset to Solve the Problems, Theme 12: Learning and Motivation, Theme 13: Helping Consumers to Cure their Illnesses, Theme 14: Keeping the Clients and Building Good Relationships, Theme 15: Disappointed, yet Motivated, Theme 16: Analyze, Strategize, and Improve, and Theme 17: Modernized and Research-Based. The consensus among the participants' statements revealed that there are certain factors, strategies, and solutions that medical sales representatives consider succeeding in the pharmaceutical sector. The MSRs possess good communication skills and product expertise, which are necessary for every MSR and assist them in achieving their target sales, even though becoming one is difficult due to failures and rejections. In addition, effective marketing strategies and analysis must be used to fulfill the company's objectives. To better align their experiences and develop strategies that would make doing business with them easier, future researchers in the field of marketing and sales in the pharmaceutical industry should investigate to learn how healthcare professionals and their institutions perceive medical sales representatives and their organizations.
PENGEMBANGAN SUMBER DAYA MANUSIA PADA SEKTOR PENDIDIKAN ANAK GUNUNG SARI ULU

Pendidikan merupakan hal yang sangat penting dalam peningkatan kualitas sumber daya manusia. Pendidikan perlu ditanamkan kepada anak-anak sejak dini. Pendidikan yang diberikan tidak hanya yang bersifat akademik, tetapi juga dapat bersifat non akademik. Dalam menunjang hal tersebut, pada artikel ini dipaparkan program untuk pengembangan sumber daya manusia khususnya yang diberikankepada anak-anak sebagai salah satu bentuk kegiatan pengabdian kepada masyarakat di daerah Kelurahan Gunung Sari Ulu Kota Balikpapan. Program ini bertujuan untuk memberikan fasilitas belajar mengajar eksternal bagi pelajar formal dan non formal di Kelurahan Gunung Sari Ulu, Balikpapan. Target khusus program ini adalah untuk membantu siswa Taman Pendidikan Al Quran (TPA) masjid Al-Muhajirin untuk mendapatkan fasilitas belajar yang dapat menunjang pembelajaran dan pengembangan diri. Kegiatan pertama yang dilakukan yaitu pembuatan mading TPA untuk meningkatkan minat baca dan kreativitas anak–anak TPA melalui hasil karya yang ditampilkan pada media mading. Kegiatan yang kedua yaitu Leadership Training sebagai kegiatan pelatihan kepemimpinan sejak dini. Kegiatan ketiga yaitu Peduli Lingkungan dalam bentuk aktivitas menghias tempat sampah guna memotivasi anak-anak agar peduli terhadap kelestarian lingkungan. Dari ketiga kegiatan tersebut diperoleh hasil bahwa peserta kegiatan mampu meningkatkan pemahaman dan kreativitas dalam belajar, memiliki rasa tanggung jawab dan kepemimpinan dalam mengambil sebuah keputusan serta lebih mencintai lingkungan sekitar.
A Mini Review on Treatment of Wastewater with Membrane Technology

Wastewater treatment is a continuous environmental problem, which troubles human activities. Numerous efforts have been made over the years to develop newly efficient technologies, including traditional filtration, coagulation-flocculation, and biological treatment systems. Among which, membrane technology is proven to be a significant one. Membranes technology is divided into four categories based on pore size. The four types of membrane technology including micro-filtration, ultra-filtration, nano-filtration, and reverse osmosis. This paper focus on the introduction, advantages, disadvantages and protection of these four membrane processes.
Privacy-Preserving and Traceable Blockchain-Based Charging Payment Scheme for Electric Vehicles

With the rapid development of the global clean energy industry, the electric vehicle (EV) has gradually replaced the traditional fuel vehicle as a promising modern transportation tool due to its environmental friendliness and competitive prices. Its widespread adoption has led to a substantial increase in demand for subsidiary facilities, such as charging piles and stations. Despite the convenience and accessibility offered by charging services, the privacy of EV users may be compromised in the process, as malicious attackers can infer their true identities and consumption habits from service orders. Existing studies introduce blockchain technology into vehicle charging payment scenarios to protect the privacy of EV users. Unfortunately, it cannot achieve the desired full anonymity and may even hinder electricity regulators’ investigation of suspicious transactions and entities. Therefore, designing a vehicle charging payment scheme that simultaneously supports privacy protection and traceability is a challenge. To address these concerns, this article proposes a privacy-preserving and traceable blockchain-based charging payment (PTB-CP) scheme for EVs. It can protect users’ identity privacy and transaction unlinkability and track abnormal transactions or entities in exceptional circumstances. We conduct a comprehensive analysis of PTB-CP from both theoretical and experimental aspects. The analysis results demonstrate that our scheme can realize privacy protection, reliability and authentication, traceability, scalability, and high efficiency.
Laser intensity-based geometry control of periodic submicron polymer structures fabricated by laser interference lithography

Photo-polymerization based fabrication of polymer micro- and nanostructures allows flexible geometry control due to reaction kinetics that are strongly dependent on the characteristics of exposure energy. Herein, we demonstrate the geometry control of the submicron polymer structures by altering the polymerization kinetics with variations of laser pulse duration and peak intensity, simultaneously. Periodic surface structures with submicron features having Gaussian and circle function profiles, as well as unique, dimple-like, geometry nanostructures were fabricated. The demonstrated fabrication method could be applied for the development of diffraction-based optical elements and anti-reflective surfaces, or the modulation of surface wetting and tribological properties.
ECOSTRESS Reveals the Importance of Topography and Forest Structure for Evapotranspiration from a Tropical Forest Region of the Andes

Tropical forests are major sources of global terrestrial evapotranspiration (ET), but these heterogeneous landscapes pose a challenge for continuous estimates of ET, so few studies are conducted, and observation gaps persist. New spaceborne products such as ECOsystem Spaceborne Thermal Radiometer Experiment on Space Station (ECOSTRESS) are promising tools for closing such observation gaps in understudied tropical areas. Using ECOSTRESS ET data across a large, protected tropical forest region (2250 km2) situated on the western slope of the Andes, we predicted ET for different days. ET was modeled using a random forest approach, following best practice workflows for spatial predictions. We used a set of topographic, meteorological, and forest structure variables from open-source products such as GEDI, PROBA-V, and ERA5, thereby avoiding any variables included in the ECOSTRESS L3 algorithm. The models indicated a high level of accuracy in the spatially explicit prediction of ET across different locations, with an r2 of 0.61 to 0.74. Across all models, no single predictor was dominant, and five variables explained 60% of the models’ results, thus highlighting the complex relationships among predictor variables and their influence on ET spatial predictions in tropical mountain forests. The leaf area index, a forest structure variable, was among the three variables with the highest individual contributions to the prediction of ET on all days studied, along with the topographic variables of elevation and aspect. We conclude that ET can be predicted well with a random forest approach, which could potentially contribute to closing the observation gaps in tropical regions, and that a combination of topography and forest structure variables plays a key role in predicting ET in a forest on the western slope of the Andes.
Aerodynamic modelling and performance analysis of over-the-wing propellers: A combined numerical and experimental study

The research objective is to analyze the aerodynamic interaction effects and quantify the performance of over-the-wing propeller systems. To achieve this objective, two wind tunnel experiments have been performed to characterize the most important aerodynamic interaction effects of a single propeller installed over-the-wing. Results feature wing and wake plane pressure distributions and forces on the propeller. Based on the findings, a low-fidelity numerical model is developed. The model couples a panel method for the wing, a blade element method accepting non-uniform inflow for the propeller and a vortex lattice method for the propeller slipstream. The model has a low computational cost and is used to perform sensitivity analyses. Results indicate that the propeller is positioned optimally near the wing trailing edge. The tool is shown to be adequately accurate for the aircraft conceptual design phase, making it invaluable to explore new aircraft configurations.
Implementasi Promosi PT. Tempo Scan Pacific di Supermarket Bandung

ABSTRACT This study aims to determine (1) How is the implementation of promotions carried out by PT. Tempo Scan Purwokerto in supermarkets, along with obstacles and solutions to overcome barriers in promotion. The research method used a survey method using a Likert scale with respondents as many as 50 consumers. The data were then collected and processed using the SPSS application using descriptive analysis method. The results of this study indicate that: (1) It is necessary to increase the product knowledge of SPG. (2) Program information made by PT. Tempo Scan needs to be disseminated massively so that consumers will know thoroughly. (3) There needs to be a new and more interesting decoration related to the booth of PT. Tempo Scan in supermarkets in order to increase consumer interest in visiting booths and trying products, besides that SPG needs to offer a comprehensive product coverage so that consumers can try the products offered by SPG. Keywords: Komunikasi, promosi, Tempo Scan ABSTRAK Penelitian ini bertujuan untuk mengetahui (1) Pelaksanaan promosi yang dilakukan oleh PT. Tempo Scan Purwokerto di supermarket, beserta dengan hambatan dan solusi untuk mengatasi hambatan dalam promosi. Metode penelitian menggunakan metode survei menggunakan skala likert dengan responden sebanyak 50 orang konsumen. Data selanjutnya dikumpulkan dan diolah menggunakan aplikasi SPSS menggunakan metode analisis desktiptif. Hasil dari penelitian ini menunjukan bahwa : (1) Perlu peningkatan produk knowledge SPG. (2) Informasi program yang dibuat oleh PT. Tempo Scan perlu disebarluaskan secara masif agar konsumen mengetahui secara menyeluruh. (3) Perlu adanya dekorasi baru dan lebih menarik lagi terkait booth dari PT. Tempo Scan di supermarket agar dapat meningkatkan minat konsumen untuk mengunjungi booth dan mencoba produk, selain itu SPG perlu menawarkan produk secara menyeluruh cakupannya agar konsumen dapat mencoba produk yang ditawarkan oleh SPG. Kata Kunci: komunikasi, promosi, tempo scan
A relaxed block splitting preconditioner for complex symmetric indefinite linear systems

Abstract In this paper, we propose a relaxed block splitting preconditioner for a class of complex symmetric indefinite linear systems to accelerate the convergence rate of the Krylov subspace iteration method and the relaxed preconditioner is much closer to the original block two-by-two coefficient matrix. We study the spectral properties and the eigenvector distributions of the corresponding preconditioned matrix. In addition, the degree of the minimal polynomial of the preconditioned matrix is also derived. Finally, some numerical experiments are presented to illustrate the effectiveness of the relaxed splitting preconditioner.
Synthesis of NaP Zeolite Based on Bauxite Red Mud Using Hydrothermal Method on Mole Ratio of SiO2/Al2O3 Variations

Red mud is a bauxite industrial waste of reddish-brown mud with high alkalinity. Red mud has relatively high silica and alumina content, so it can be utilized as a raw material in the synthesis of zeolite. This study aims to synthesize high-purity NaP zeolite from red mud at various SiO2/Al2O3 mole ratios. The synthesis begins with neutralizing the red mud, followed by decomposition using the alkaline fusion method at a ratio of red mud:NaOH = 1:1 (w/w). The filtrate produced by the alkaline fusion was adjusted to the mole ratio of SiO2/Al2O3 = 2.0; 2.5; 3.0; and 4.0, respectively, by adding sodium silicate, followed by a hydrothermal process using an autoclave at 120oC for 16 hours. The synthesized zeolites were characterized using XRD and FTIR spectrophotometry. The XRD results showed that the zeolite produced in all variations of the SiO2/Al2O3 mole ratio studied was a type of high-purity NaP with no other zeolite crystalline phases found as impurities. The structure formed is tetragonal with a degree of crystallinity of 74.54%; 76.47%; 78.94%; 75.64%, and crystal size 80.2286; 54.3437; 37.7099 and 40.1226 nm for zeolite with SiO2/Al2O3 mole ratio 2.0; 2.5; 3.0; and 4.0, respectively. Based on the results of the study, pure NaP zeolite can be synthesized from red mud material using the hydrothermal method at the ratio of moles SiO2/Al2O3 = 2.0 – 4.0.
Photon statistics of semiconductor microcavity polaritons

Quantum statistical properties of the coherently driven semiconductor microcavity are studied. The unique quantum solution for the two-mode system of coupled excitons and photons was obtained in the adiabatic approximation. This solution predicts both bunching and antibunching regimes for the photonic field in the domain of parameters where the single mode polariton approximation fails.
The impact of dividend policy on share price volatility: Evidence from listed companies in Gulf Cooperation Council countries

The volatility of share prices is of high importance to investors since it formulates the investment strategies that should be followed or even helps in deciding the right time and company to be selected for investment purposes. The Gulf Cooperation Council (GCC) investors should find this empirical study of high importance since it will highlight the main company characteristics that should be taken into consideration when formulating the expectations of future share prices. This study examines the impact of dividend policies on share price volatility, focusing on non-financial companies of GCC countries that were listed between 2010 and 2021. All non-financial companies (532) listed in Saudi Arabia, Oman, Qatar, the UAE, Kuwait, and Bahrain were collected but 380 companies were excluded due to unavailable data set for the period of study. The panel regression is used to test the impact (fixed and random effects techniques) but the Hausman test favored the fixed effects results. The dependent variable is share price volatility, while the independent variable is the dividend yield, which serves as a stand-in for dividend policy. The relationship between share price volatility and a set of controls, including size, growth, and leverage, is also examined in this paper. According to the results, size and leverage have a significant negative relationship with share price volatility, but growth has an insignificant positive impact. Dividend policy has no impact on share price volatility. In other words, dividend policy does not fluctuate share prices in GCC.