Miracle-dz/UniFAR-FTUs huggingface dataset:
Semi-Autogenous Wet Grinding Modeling with CFD-DEM

The paper highlights the features of constructing a model of a wet semi-autogenous grinding mill based on the discrete element method and computational fluid dynamics. The model was built using Rocky DEM (v. 4.4.2, ESSS, Brazil) and Ansys Fluent (v. 2020 R2, Ansys, Inc., United States) software. A list of assumptions and boundary conditions necessary for modeling the process of wet semi-autogenous grinding by the finite element method is presented. The created model makes it possible to determine the energy-coarseness ratios of the semi-autogenous grinding (SAG) process under given conditions. To create the model in Rocky DEM the following models were used: The Linear Spring Rolling Limit rolling model, the Hysteretic Linear Spring model of the normal interaction forces and the Linear Spring Coulomb Limit for tangential forces. When constructing multiphase in Ansys Fluent, the Euler model was used with the primary phase in the form of a pulp with a given viscosity and density, and secondary phases in the form of air, crushing bodies and ore particles. The resistance of the solid phase to air and water was described by the Schiller–Naumann model, and viscosity by the realizable k-epsilon model with a dispersed multiphase turbulence model. The results of the work methods for material interaction coefficients determination were developed. A method for calculating the efficiency of the semi-autogenous grinding process based on the results of numerical simulation by the discrete element method is proposed.
The impact of mastectomy on body image and sexuality in women with breast cancer: a systematic review

Objective: The study aims to evaluate the impact of mastectomy on body image and sexuality of women with breast cancer, as well as to provide a general understanding of their quality of life. Method: This review followed the PRISMA guidelines. The expression “Mastectomy AND (sexuality OR “body image”)” was searched in Lilacs, Scielo, Pubmed and Scopus databases. Articles published in English, Portuguese and Spanish between 2010 and 2020 were selected. The text analysis was carried out by peers. Results: 69.3% (43) of the studies presented mastectomy as a technique that worsens body image, sexual functioning and quality of life of women. Less radical procedures, such as breast-conserving surgery, showed lower impact on these indicators. Breast reconstruction is an alternative to mitigate breast surgery impacts. Conclusion: Mastectomy caused the major impacts on body image, sexual functioning and quality of life. These implications need to be considered during therapeutic choice.
Technology Acceptance Model for Pervasive Computing: Mobile Business Intelligence Applications in Egypt

The Pervasive Computing is a new paradigm in information technology. Over the past two decades, many of Pervasive Computing and Internet of Things applications were developed to facilitate our life. The current study will mainly focus on pervasive computing applications at work settings and empirically validate the proposed model. The Mobile Business Intelligence application was chosen as an initial stage technology of pervasive computing. The study developed a proposed model which included the extended Unified Theory of Acceptance and Use of Technology (UTAUT) model along with the Trust and Perceived Convenience variables to investigate behavioral intention to use pervasive computing applications. Using Questionnaire survey, data was collected from 277 employees in some companies in Egypt. The correlation, regression and Structural Equation Modeling (SEM) were used for analysis. The results showed that effort expectancy explained 17.9% of the variations in Perceived Convenience, 28.9% of the variations in Performance Expectancy were justified by Perceived Convenience. The results also indicated that Performance Expectancy, Effort Expectancy, Social Influence, Facilitating Conditions, Perceived Convenience and Trust explained 46.7% of the variations in behavioral intention to use pervasive computing applications. The paper will provide great benefits for entrepreneurs, policy makers, practitioners, researchers and educators though providing a clearer view and deep understanding for the issues related to different factors affecting the acceptance of pervasive computing applications such as Mobile Business Intelligence application at work settings in Egypt.
CHARACTERIZATION OF SOME MORPHO-PHYSIOLOGICAL RESPONSES, SEED CHEMICAL COMPOSITION AND GRAIN YIELD IN LENTIL VARIETIES ( Lens culinaris Medik culinaris) UNDER IRRIGATED AND RAINFED CONDITIONS

In Algeria, pulses are rain crops and are drought-prone during their breeding period, resulting in a loss of yield. To this end, four varieties of lentil are tested for their drought tolerance through bio-stress indicators in a field trial during the 2016/2017 crop year. Plants are grown under rained and irrigated conditions (irrigation + rainfall), from the "flowering" stage to the "filling of grains" stage. The results indicated that drought stress significantly decreased the relative water content (13.4%), leaf surfaces (32.21%), and grain yield of all genotypes tested (58.37%). The chemical composition of lentil seeds showed a reduction in starch content (4.41%) and an increase in protein content (32.21%). Potassium ions and Sodium ions were present at the highest and lowest concentrations (747.91ppm- 4.5ppm) in rainfall conditions, respectively, while Ca++, PO4-, and Mg++ concentrations were not affected by drought. In conclusion, the emphasis on bio-indicators of water stress tolerance at the reproductive period is of great importance in minimizing grain yield losses and the quality of seeds.
All-Digital Successive Approximation TDC in Time-Mode Signal Processing

An 8-bit time-mode successive approximation register time-to-digital converter (SAR TDC) is proposed. The TDC achieves a high resolution and a better power/area efficiency by using a pre-skewed delay line with digital time interpolation. The impact of pre-skewing on delay and power consumption is investigated. A cascode inverter interpolation cell with improved input-output isolation is introduced. The impact of the slope of input signals on the linearity of the time interpolator is investigated. Timing errors caused by device noise are quantified. The SAR TDC is designed in a TSMC 65 nm 1.0 V CMOS technology and analyzed using Spectre with BSIM3.3 device models. Simulation results show the SAR TDC operated at 10 MS/s achieves 0.33 ps solution, 9.68 ENOB, and 0.20 pJ/conv. FOM.
Effects of Various Training Techniques on Bat Velocity of High School Baseball Players

Faster bat speed allows a baseball or softball player more time to decide how to hit the ball and provides more transfer of momentum to the ball (Nathan, 2003; Syzmanski, DeRenne, Spaniol, 2009). Purpose: This paper examines the effectiveness of three training strategies for improving bat speed among high school baseball players. Methods: Nine high school students were recruited and separated into 3 groups using different training implements. A standard bat (29 oz.), a weighted bat (45 oz.), and Therabands attached to a standard bat were used over a 3-week training program. Data were analyzed using a Kruskal-Wallis ANOVA. Results: The standard bat group experienced no change in bat speed (± 0.89), while the weighted bat group increased by 1.9 ± 0.46 mph and the Theraband group improved by 3.1 ± 0.38 mph. The only significant difference was in the change in bat speed between the Theraband group and the standard bat group (p = .022). All other data were non-significant. Conclusions: Attaching Therabands to a standard bat may be an effective training tool to improve bat speed.
Social influence in Predicting Islamic banking acceptance: Evidence from Morocco

After four decades of existence, Islamic banking faces a serious problem of acceptance. Indeed, market share of Islamic financial institutions in Muslim countries is still very low. The aim of this study is to present a model based on social factors to predict Islamic banking acceptance. The model uses subjective norms, descriptive norms and Islamic identity as predictors of intention to use Islamic banking products. A survey was conducted among a sample of 481 potential customers of Islamic banks in Morocco. The results confirm the ability of the proposed model to predict 44% of intention to accept their products and services. The three constructs had a significant positive effect on intention to use Islamic banking products.
H/D methane isotopologues dissolved in magmatic fluids: Stable hydrogen isotope fractionations in the Earth’s interior

Abstract A series of hydrothermal diamond-anvil cell experiments have been conducted to evaluate the role of supercritical water on the isotopic equilibrium between H/D methane isotopologues at 600-800 °C and 409-1622 MPa. Raman spectroscopy was deployed to investigate the distribution of H/D isotopic molecules formed during hydrothermal decomposition of Si5C12H36 in H2O-D2O aqueous solutions. To this end, the intensities of the fundamental vibrational C-H and C-D modes of deuteromethanes were employed to determine the thermodynamic properties of isotope exchange reactions between H/D isotopologues and to constrain the methane D/H molar ratios. By adjusting the initial volume ratios of silane/H2O-D2O, reactions in the CH4-D2O-H2O system were monitored for gaseous and supercritical-water phases. Discreet differences between the equilibrium constants, describing the relationship between the CH3D-CH2D2-CHD3-CH4 species dissolved in supercritical water or present as a homogeneous gas phase, are revealed. The bulk D/H methane composition in the liquid-system is also twice that of the D/H molar ratios recorded in the gas-bearing system. Accordingly, condensedphase isotope effects are inferred to play a key role on the evolution of H/D isotopologues, likely induced by differences in the solubility of the isotopic molecules driven by the excess energy/entropy developed during mixing of non-polar species in the H2O-D2O structure. Our experiments show that isotope fractionation effects need to account for the presence of condensed matter (e.g., melts, magmatic fluids), even at conditions at which theoretical models suggest minimal (or nonexistent) isotope exchange, but comparable to those within the Earth’s interior.
Field-level comparison of nitrogen rates and application methods on maize yield, grain quality and nitrogen use efficiency in a humid environment

ABSTRACT Appropriate nitrogen (N) management practices are of critical importance in improving N use efficiency (NUE), maize (Zea mays) yield and environmental quality. A six-year (2005–2010) on-farm trial was conducted in Ottawa, Canada to assess the effects of N rates and application methods on grain yield and NUE. In four out of the six-year study, grain yield increased by 60–77 kg ha−1 by sidedress, compared to 49–66 kg ha−1 for each kg N ha−1 applied at preplant. Grain yield response to N between the two strategies was similar in the other growing seasons. Sidedress strategy required 15 kg N ha−1 less of the maximum economic rate of N (MERN) than preplant application. Our results indicate that sidedress application of 90–120 kg N ha−1 with a starter of 30 kg N ha−1 resulted in greater yield, grain quality and NUE than preplant N application in this cool, humid and short growing-season region.
Letter. The speciation of carbon monoxide in silicate melts and glasses

Abstract We have studied the speciation of carbon monoxide in both Fe-bearing and Fe-free basaltic glasses using Raman, FTIR, and Mössbauer spectroscopy. We show that a band at 2110 cm-1 in the Raman spectrum and another band at 2210 cm-1 in the FTIR spectrum occur both in the Fe-bearing and Fe-free samples, implying that they cannot be due to any Fe-bearing species. This observation is consistent with 57Fe Mössbauer spectra, which do not show any evidence for Fe species with zero isomer shift, as expected for carbonyls. Thermodynamic calculations show that iron carbonyl in basaltic melts under crustal and upper mantle conditions may only be a trace species. Rather than being due to distinct chemical species, the range of vibrational frequencies observed for carbon monoxide in silicate glasses appears to be due to rather subtle interactions of the CO molecule with the matrix. Similar effects are known from the extensive literature on carbon monoxide adsorption on oxides and other surfaces. In the melt at high temperature, there is likely little interaction of the CO molecule with the silicate matrix and solubility may be largely controlled by pressure, temperature, and the overall polymerization or ionic porosity of the melt.
70 to 700 to 70,000: Lessons from the Jamaica Experiment

This document compares three versions of the same home visiting model, the well-known Jamaica model, which was gradually scaled-up from an efficacy trial (proof of concept) in Jamaica, to a pilot in Colombia, to an at-scale program in Peru. It first describes the design, implementation and impacts of these three programs. Then, it analyzes the threats to scalability in each of these experiences and discusses how they could have affected program outcomes, with a focus on three of the elements of the economic model of scaling in Al-Ubaydli, et al. (Forthcoming): appropriate statistical inference, properties of the population, and properties of the situation. The document reflects on the lessons learned to mitigate the threats to scalability and on how research and evaluation can be better aligned to facilitate and support the scaling-up process of early child development interventions. It points out those attributes that interventions must maintain to ensure effectiveness at scale. Similarly, political support is also identified as indispensable.
Mobile Low-Dose Computed Tomographic (LDCT) Scanning combined with Remote Reading: a feasible approach to lung cancer screening among rural population

BackgroundLow-dose computed tomographic (LDCT) screening has been proven to be powerful in detecting lung cancers in early stage. However, it’s hard to carry out in less-developed regions in lacking of facilities and professionals. The feasibility and efficacy of mobile LDCT scanning combined with remote reading by experienced radiologists from superior hospital for lung cancer screening in deprived areas was explored in this study.MethodsA prospective cohort was conducted in rural areas of western China. Residents over 40 years old were invited for lung cancer screening by mobile LDCT scanning combined with remote image reading or local hospital-based LDCT screening. Rates of positive pulmonary nodules and detected lung cancers in the baseline were compared between the two groups.ResultsAmong 8073 candidates with preliminary response, 7251 eligibilities were assigned to the mobile LDCT with remote reading (n = 4527) and local hospital-based LDCT screening (n = 2724) for lung cancer. Basic characteristics of the subjects were almost similar in the two cohorts except that the mean age of participants in mobile group was relatively older than control (61.18 vs. 59.84 years old, P < 0.001). 1778 participants with mobile LDCT scans with remote reading (39.3%) revealed 2570 pulmonary nodules or mass, and 352 subjects in the control group (13.0%) were detected 472 ones (P < 0.001). Proportions of nodules less than 8 mm or subsolid were both more frequent in the mobile LDCT group (83.3% vs. 76.1%, 32.9% vs. 29.8%, respectively; both P < 0.05). In the baseline screening, 26 cases of lung cancer were identified in the mobile LDCT scanning with remote reading cohort, with a lung cancer detection rate of 0.57% (26/4527), which was significantly higher than control (4/2724 = 0.15%, P = 0.006). Moreover, 80.8% (21/26) of lung cancer patients detected by mobile CT with remote reading were in stage I, remarkedly higher than that of 25.0% in control (1/4, P = 0.020). ConclusionMobile LDCT combined with remote reading is probably a potential mode for lung cancer screening in rural areas.Trial registrationNo. of registration trial was ChiCTR-DDD-15007586 (http://www.chictr.org).
Comparison of Three Sodium Chloride Chemical Treatments for Adult Zebra Mussel Decontamination

ABSTRACT Chemical treatment for the control of the spread of zebra mussels in watercraft is typically focused on the early life stages of the mussel. Adult mussels may be spread via attachment or entangling to gear that is brought on board. Sodium chloride is a chemical that has been recommended for use during some aquacultural practices as a mussel disinfectant. The effectiveness of three sodium chloride-based salts (high-grade sodium chloride, iodized table salt, and water softener salt) was examined for their use as an adult zebra mussel decontamination solution. High-grade sodium chloride and iodized table salt both caused complete mortality at 30.000 mg/l in 24 h. Water softener salt caused complete mortality at the same concentration at 48 h. Iodized table salt caused complete mortality at a lower concentration faster than the laboratory-grade sodium chloride. On the basis of the results of this study, iodized table salt may be an acceptable alternative to high-grade sodium chloride for decontamination of zebra mussels, costing much less and leading to an increase in spread-prevention effectiveness.
Exploring Health Professionals’ Perceptions of Husbands’ Responsibilities in Muslim Women’s Health

Background: The husband has an important role in women's health. However, the information related to their roles is limited, including from the perspectives of health professionals. The health professionals' support and behavior have influenced men's and women's health behavior. Purpose: This study aimed to determine the health professionals’ perceptions of husbands’ roles and behavior in women's health, especially in the Muslim community.Methods: A qualitative descriptive approach applied in this study. Data were collected using the interview method. Ten clinicians from rural and urban areas of West Java, Indonesia, with a range of experience engaging with Muslim husbands involved in this study. Semi-structured interviews were recorded and then transcribed by the researchers. The transcribed data were analyzed using the comparative analysis for the interview technique.Results: Four main themes were identified: (1) Contextual factors impact husbands' roles in women's health; (2) Extensive roles of Muslim husbands in women's health; (3) Husbands and others involved in decisions about women's health; and (4) Level of health literacy affects husband's actions in women's health and cancer.Conclusion: Health professionals perceived that husbands' roles in Muslim women's health are pivotal, especially in supporting health treatments in health services. Little information was obtained about husbands' support in cancer prevention and early detection. Nurses can take the lead in improving Muslim husbands' understanding of women's health and cancer and raising their awareness of cancer screening for their wives.
Trade Barriers in Government Procurement

This paper estimates trade barriers in government procurement, a market that accounts for 12% of world GDP. Using data from inter-country input-output tables in a gravity model, we find that home bias in government procurement is significantly higher than in trade between firms. However, this difference has been shrinking over time. Results also show that trade agreements with provisions on government procurement increase cross-border flows of services, whereas the effect on goods is small and not different from that in private markets. Provisions containing transparency and procedural requirements drive the liberalizing effect of trade agreements.
Left-Right radicalism and Populist attitudes in France and Spain

ABSTRACT There is little doubt that supply-side populism associates with radical platforms of the left and the right. However, few empirical analyses have focused on the connection between left-right ideological radicalism and populism at the individual level, even less in countries where populist discourses are not only associated with the radical right. This paper considers the association between populist attitudes and ideological radicalism in two countries where left-wing populist parties exist: France and Spain. For that, it uses an approach to political ideology that distinguishes political-economic issues and political-cultural ones. Main results show that radically minded individuals, located at the left and the right of the ideological axis, display stronger populist attitudes in France and Spain. However, differences between the two countries exist that highlight the relevance of context-dependent associations between populism and other (thick) ideologies in the electoral arena. In France, individuals located at the extreme right of the cultural dimension tend to show stronger populist attitudes than those located at the far left. In contrast, in Spain, individuals located at the extreme left of the economic and cultural dimensions display stronger populist attitudes.
Leading and Working From Home in Times of COVID-19: On the Perceived Changes in Leadership Behaviors

Due to the COVID-19 crisis, managers and employees in many organizations suddenly are forced to work from home. Although working from home (WFH) is not a new phenomenon, it is new in its current scale and scope because of COVID-19. Against this background, we investigate the effect of WFH during the COVID-19 crisis on changes in leadership behaviors, and associated changes in perceived manager quality and productivity, at different hierarchical levels in organizations. Based on the literature, we develop two predictions in opposite directions. On the one hand, implementing WFH may force managers to show less direction and control and especially more delegation. On the other hand, research into the effects of exogenous shocks such as COVID-19, suggests that managers may become more controlling and delegate less. Consistent with the first prediction, we find that managers perceive they execute significantly less control and delegate more. Employees also perceive a significant decrease in control, however they perceive on average no change in delegation. Furthermore, and in line with the second prediction, employees of lower-level managers even report a significant decrease in delegation. Finally, our results show that increased delegation is associated with increased perceived productivity and higher manager quality. Together, these results suggest that in the context of the COVID-19 crisis, the effectiveness of WFH might be hampered by the fact that required changes in leadership behaviors, in particular in delegation, are difficult to realize in times of crisis.