Miracle-dz/UniFAR-FTUs huggingface dataset:
Parental Mediation of Children’s Risky Experiences with Digital Media

Children’s use of digital media is associated with risky experiences, a situation warranting parental mediation. Previous studies on parental mediation of children’s digital media use, conducted in advanced countries in Europe, America and Asia with rich experiences of children’s digital media use, examined only specific risks and rarely focused on effectiveness of the mediation strategies adopted. The present study investigated parental mediation of children’s risky experiences with digital media in an African setting, focused on four categories of risks and measured the effectiveness of adopted mediation strategies. Objectives of the study were to identify the mediation strategies parents applied in mediating risks (conduct, content, contact and commercial) encountered by children in the use of digital media, and ascertain the consequences of the mediation strategies. The study, a survey, used a sample of 265 parents drawn from a population 863 academic and non-academic staff members of Ibrahim Badamasi Babangida University, Lapai, Niger State, Nigeria. Parental Knowledge and Intervention in Children’s Risky Experiences with Digital Media Questionnaire (PKICREDMQ), designed by the researchers, and successfully scaled through validity and reliability tests, was used to generate data. Findings revealed that the parents adopted mainly two mediation strategies – restrictive and active
Identifying Doping Strategies To Optimize the Oxide Ion Conductivity in Ceria-Based Materials

One of the key objectives in developing solid oxide fuel cells and oxygen membranes is the improvement of ionic conductivity in electrolyte materials. Optimization of such materials relies on the understanding of the oxygen−ion diffusion mechanisms at the atomic scale. Getting a clear physical−chemical picture is thus the prerequisite to make an educated guess of the best choices of dopant. We highlight in this work some of the most salient recent advances in point defects and oxide ion conductivity studies obtained from atomic-scale simulations performed in the framework of the density functional theory using a supercell approach. First principles calculations have been performed on ceria doped with three kinds of trivalent cations (La3+, Y3+, and Lu3+) to probe the incidence of both dopant size and distribution on relative phase stability and oxygen diffusion efficiency. Ionic relaxation patterns indicate that the crystal structure reorganization after introduction of defects (DCe′, VO.) involves both .
GREEN BANKING TERHADAP PROFITABILITAS BANK UMUM SYARIAH DI INDONESIA

Islamic commercial banks are sharia banks which in their activities provide services in payment traffic. Islamic commercial banks can act as foreign exchange banks and non-foreign exchange banks. Foreign exchange banks are banks that can carry out overseas transactions or those related to foreign currencies as a whole such as overseas transfers, overseas collections, opening letters of credit and so on. The research objective is to determine that green banking affects the profitability of Islamic Commercial Banks in Indonesia and the concept of green banking from an Islamic perspective. This type of research is quantitative with a statistical descriptive approach. The research methodology used in this research is the method of documentation and literature study. The data used in this study are secondary data, namely the annual reports of Islamic Commercial Banks for the period 2015-2018. The dependent variable in this study is Net Profit Margin (NPM). While the independent variable is Green banking indicators. The data analysis method used is simple linear regression, coefficient of determination (R2), and hypothesis testing, namely the partial test (Y), the data processing used is the SPSS 21 program. The results show that green banking has a positive effect on the profitability of Islamic Commercial Banks in Indonesia. From an Islamic perspective, all Green Banking indicators are in accordance with an Islamic perspective as well as reinforcing arguments about protecting nature and preventing natural damage.
One-Photon Plasmon Luminescence and Its Application to Correlation Spectroscopy as a Probe for Rotational and Translational Dynamics of Gold Nanorods

A strong intrinsic signal is advantageous over labeling for optical detection of nanoparticles. Intense scattering and absorption by the surface plasmon resonance, which exceeds molecular cross sections, provides a direct method for visualizing noble metal nanoparticles. While two-photon luminescence in gold nanoparticles yields a strong signal, one-photon luminescence is generally regarded to be much weaker and has seldom been employed for optical nanoparticle detection. In this article we investigated one-photon luminescence of gold nanospheres and nanorods using single particle spectroscopy with excitation at 514 and 633 nm. We characterized the polarization dependence, determined the quantum yield, and present a mechanism describing one-photon luminescence. Our results suggest fast interconversion between surface plasmons and hot electron–hole pairs and show that the luminescence occurs via emission by a surface plasmon. Using the information obtained from the single particle studies, we were able to .
Theoretical and experimental study on conveying behavior of a twin-screw multiphase pump

In this paper, the conveying behavior of a twin-screw multiphase pump is investigated when it pumps either pure water or gas–liquid mixtures with gas void fractions varying from 20% to 90%. A prototype of the twin-screw multiphase pump is developed and set up in a laboratory for this purpose. A theoretical model is established to evaluate backflow rates in the twin-screw pump clearances, total pump volume flow rates, and power consumptions at various pressure differences and gas void fractions. Results show that the predictions from the model agree well with experimental data. For pumping pure water, the power consumption increases by 45.3% when the pressure difference between inlet and outlet of the twin-screw multiphase pump increases from 0.6 to 1.0 MPa. However, the effect of the pressure difference on the total pump flow rate is negligible. For pumping air–water mixtures, the pressure difference has a significant effect on both power consumption and total volume flow rate of the multiphase pump. The pump power consumption increases by more than 40% when the pressure difference increases from 0.4 to 1.0 MPa. On the contrary, the pump volume flow rate decreases between 10% and 30% varying with the gas void fraction value. However, at the fixed pressure differences of 0.4 MPa and 1.0 MPa, the pump power consumption does not show much difference with the change of gas void fractions from 20% to 90% although the total pump volume flow rate reduces by 18.7% and 25.7%, respectively.
H19/miR-194/E2F3 regulating loop promotes gastric cancer growth and metastasis

Background: Gastric cancer (GC) is one of the most frequent malignant digestive tumors and second fatal cancer. This study was to investigate whether lncRNA-H19 can regulate E2F3 expression through competitive binding to microRNA-194 (miR-194), thus regulating GC growth and metastasis. Methods: H19, miR-194, and E2F3 expression levels in GC tissues and cell lines were investigated using quantitative reverse transcriptase-polymerase chain reaction (QRT-PCR). Meanwhile, the mRNA levels of H19 and E2F3 in gastric cancer tissues were also analyzed through the GEPIA web tool. The binding condition of miR-194 with H19 and E2F3 was investigated using a dual-luciferase reporter gene assay. The regulatory effects of H19 on proliferative, migratory, and invasive abilities of AGS cells and SGC-7901 cells were detected by transwell assay and cell counting kit-8 (CCK-8). Genes involved in proliferation, migration, and invasion (PCNA, Vimentin, and N-cadherin) were determined using QRT-PCR and western blot. The regulatory interaction between H19 and miR-194, miR-194, and E2F3 were investigated using rescue experiments. Results: The results revealed that H19 was highly expressed in GC tissues and cell lines than those of controls. Downregulated H19 decreased the proliferation, migration, and invasion of AGS cells and SGC-7901 cells. H19 was demonstrated that being the molecular sponge of miR-194 in regulating the growth of the GC cells. The level of E2F3 expression was also found significantly higher in GC tissues and cell lines than those of controls. And then, the mimics of miR-194 inhibited the expression of E2F3 in the GC cells. CCK-8 assay showed decreased proliferative ability induced by miR-194 mimics were reversed by E2F3 overexpression. Transwell assays showed decreased migratory and invasive ability induced by miR-194 mimics were reversed by E2F3 overexpression. Conclusions: This study demonstrates that H19 promotes GC growth and metastasis by regulating E2F3 via competitive binding to miRNA-194.
Stochastic modelling and analysis of harvesting model: Application to "summer fishing moratorium" by intermittent control

As we all know, "summer fishing moratorium" is an internationally recognized management measure of fishery, which can protect stock of fish and promote the balance of marine ecology. In this paper, "intermittent control" is used to simulate this management strategy, which is the first attempt in theoretical analysis and the intermittence fits perfectly the moratorium. As an application, a stochastic two-prey one-predator Lotka-Volterra model with intermittent capture is considered. Modeling ideas and analytical skills in this paper can also be used to other stochastic models. In order to deal with intermittent capture in stochastic model, a new time-averaged objective function is proposed. Besides, the corresponding optimal harvesting strategies are obtained by using the equivalent method (equivalency between time-average and expectation). Theoretical results show that intermittent capture can affect the optimal harvesting effort, but it cannot change the corresponding optimal time-averaged yield, which are accord with observations. Finally, the results are illustrated by practical examples of marine fisheries and numerical simulations.
Enhancing the Photocatalytic Activity of BiVO4 for Oxygen Evolution by Ce Doping: Ce3+ Ions as Hole Traps

To enhance the photocatalytic activity of monoclinic BiVO4 for O2 evolution from water, Ce-doped BiVO4 was prepared using the one-pot facile solvothermal method and characterized via XRD, Raman, XPS, and electrochemical impedance spectroscopy (EIS). The XPS spectra confirm that Ce component is Ce3+ ions instead of Ce4+ ions. From the structural characterization and the calculations of formation energies it has been stated that the doping of Ce3+ ions takes place at Bi3+ sites without changing the host structure. The as-prepared Ce-doped BiVO4 samples display significantly enhanced photocatalytic O2 evolution activities from water compared to pristine BiVO4. Density of states calculations indicate that Ce3+ ions act as hole traps, thereby delaying the recombination of photogenerated electrons and holes. The results demonstrate that the substitution of the remaining monoclinic crystal structure may offer an attractive alternative approach for the doping of BiVO4 to enhance the evolution activity of photocat.
Comparison of the effects of different retention appliances on the oxidant–antioxidant system

Abstract The aim was to compare oxidative stress (OS) levels with different types of retention appliance. Thirty orthodontic patients were divided into three groups: Group 1 (Essix retainer), Group 2 (lingual retainer with stainless steel retainer wire), and Group 3 (lingual retainer with fiber-reinforced material). OS was assessed in the subjects’ saliva. Saliva samples were taken from the patients at T0 (before using the retention appliance), T1 (first month of retention), and T2 (third month of retention). The specimens were investigated to detect changes in total antioxidant status (TAS), total oxidant status (TOS), and oxidative stress index (OSI). TAS values in Group 2 were significantly higher than in Group 3. TOS values in Group 3 were significantly lower than in the other groups. TOS values in Group 2 were lower than in Group 1. OSI values of Group 1 were higher than those in Group 2 or 3. There was no statistically significant difference among the time periods. The type of retention appliance affected OS values. A fiber-reinforced material may have a lower OSI. OS or products can affect some systemic disease; therefore, the selection of the retainer will be important on these patients.
Modeling Groundwater Quality Using Three Novel Hybrid Support Vector Regression Models

During recent decades, the excessive use of water has led to the scarcity of the available surface and groundwater resources. Quantitative and qualitative surveys of groundwater resources indicate that accurate and efficient optimization methods can help to overcome the numerous challenges in assessment of groundwater quality. For this purpose, three optimization meta-heuristic algorithms, including imperialist competitive (ICA), election (EA), and grey wolf (GWO), as well as the support vector regression method (SVR), were used to simulate the groundwater quality of the Salmas Plain. To achieve this goal, the data of the groundwater quality for the Salmas plain were utilized in a statistical period of 10 years (2002-2011). The results were evaluated according to Wilcox, Schuler, and Piper standards. The results indicated higher accuracy of the GWO-SVR method compared to the other two methods with values of R2=0.981, RMSE=0.020 and NSE=0.975. In general, a comparison of the results obtained from the hybrid methods and different diagrams showed that the samples had low hardness and corrosion. Also, the results indicated the high capability and accuracy of the GWO-SVR method in estimating and simulating the groundwater quality.
Pruning as a strategy to improve the nutritional value of the aerial parts of industry- purpose cassava clones

ABSTRACT The present study aimed to assess the influence of pruning on the starch yield and nutritional value of the aerial parts of industry- purpose cassava clones adapted to the Cerrado region of Central Brazil. Four elite clones were submitted to either total shoot pruning or no pruning at 12 months after planting, in a randomized complete block design with three replications. Plants were evaluated eighteen months after planting. Clone 330/09 presented the highest root yield with and without pruning, and also higher starch yield, green and dry mass yields, and crude protein yield of aerial parts without pruning. In plants that were pruned, clones 117/09 and 359/09 stood out, with higher yields of the crude protein content of the aerial part and a higher in vitro digestibility of the dry matter. These clones are therefore an option when using the aerial parts of cassava in animal feed. Total pruning at 12 months of age significantly increased the crude protein content and in vitro digestibility of the dry matter of the aerial parts, improving its nutritional value. Pruning did, however, reduce the starch yield of the roots and the total yields of the roots and aerial parts.
Intestinal integrity and performance of turkeys subjected to inoculation of Salmonella Enteritidis and a diet supplemented with lactulose

The objective of this work was to evaluate the effects of lactulose (0.03 mL kg-1) on the intestinal health and weight gain of turkeys subjected to the inoculation of Salmonella serovar (sv.) Enteritidis (SE). A total of 280 turkeys, with one day of age, were distributed in the following treatments: T1, negative control; T2, group that received only lactulose; T3, group subjected to the inoculation of approximately 7.0x105 CFU mL-1 SE; and T4, group subjected to the inoculation of approximately 7.0x105 CFU mL-1 SE and treated with lactulose. Poultry performance was evaluated weekly, and seven turkeys from each treatment were euthanized to collect duodenum and jejunum fragments for the histomorphometric analysis. A lower weight gain was observed in the group that received only the pathogen, and the best performance was observed in the lactulose-treated group. The histomorphometric analysis showed a higher villus:crypts ratio in the duodenum and jejunum samples of the negative control and of the group of turkeys at 7 and 21 days of age treated with the lactulose-supplemented diet. Lactulose allows of a better intestinal development of turkeys until 42 days of age, but it does not interfere with poultry performance.
Evaluation of chemical components of urinary stone with spiral CT scan in vitro

Objective:To evaluate the possibility of the application of the non-contrast spiral computed tomography(CT) in determining calculi chemical components.Methods:Quantitative analysis was accomplished to ensure the chemical components of thirty stones with advanced Mauer method.These stones were measured with noncontrast spiral CT.The scans were finished at the 120 kv/140mA energy,with a 5 mm slice thickness.Significant difference was assessed between the CT values of each composition of stones.Results:The CT values of the pure stones were(1 890±100) Hu for calcium oxalate,(1382±74) Hu for calcium phosphate,(1 089±22) HU for cystine,(674±37) Hu for ammonium magnesium phosphate and(148±88) Hu for uric acid respectively.There were significant differences between the CT values of each type of pure stone above(P(0.05)). The CT values of mixed stones were between the values of pure stones inside.Conclusions:The major chemical components of the urinary calculi can be determined according to the CT value of the calculi,which may be helpful to the diagnosis,treatment and prevention of the recurrence of the urinary calculi.The feasibility of determinations in vivo with non-contrast spiral CT remains to be clarified.
Fast and Simple Adaptive Elicitations: Experimental Test for Probability Weighting

We propose a new adaptive procedure for the measurement of decision models. Our procedure bounds the function of the decision model, sequentially halves the maximal distance between its bounds, and incrementally restricts the feasible space of associated parameters. It relies on approximating splines that improve tractability and descriptiveness, enriching results. It grants concise unsupervised experiments: ten choices on average suffice. We apply and validate our procedure in an experimental elicitation of the probability weighting function. Our procedure faithfully captures empirical regularities in probability weighting. In addition, it reveals systematic distortions introduced by standard parametric forms, and sheds new light on the pervasiveness of possibility and certainty effects in close proximity to the probability boundaries (i.e. p=0 and p=1).
O2O Adoption Benefits: A Managerial Perspective of Customer Benefits

Online‑to‑offline (O2O) is a fast‑growing business innovation, pointing online customers to physical locations where they can more closely inspect – and purchase – their desired products, or can collect them after ordering online. However, the growth of O2O may be limited by the lack of reliable understanding of its benefits to customers. This study aims to remedy this lack of knowledge, by analyzing the transcripts of 24 semi‑structured interviews with managers. The study finds that O2O benefits customers in three main ways: (1) making more informed decisions, (2) receiving timely information on discounts and sales, leading to time and cost savings, and (3) having direct interaction opportunities with the business ‑ something which is not the case in a pure online business. Contrary to general understanding, the results show that offering discounts as a benefit to customers is an approach that is not necessarily applicable across‑the‑board, because in some industries the margins are too low to offer any discounts. Further work may be needed to examine the relevance of discount as a customer benefit proposition for adopting O2O. We also find that the time saving benefit to customers remains a contentious issue, as the availability of too much choice may lead to customers spending too much time investigating the product/service, thereby delaying their decisions and ultimately negating any benefits. The results contribute to e‑commerce literature in building the theoretical understanding of the perceived benefits of O2O for customers from a managerial perspective. The identification of O2O benefits for customers will also help in understanding the behaviors and intentions as well as perceived value of adoption and acceptance of newer forms of technological ‑oriented innovations such as O2O in general. Managers can use the results for business‑case development and strategizing benefits realization of adopting O2O. The results will help managers in creating tailored strategies to integrate features and functionalities in the software products used for O2O to ensure that identified benefits are provided to the customers, thus improving the chances of successful realization.
Exponential‐Growth Bias in Experimental Consumption Decisions

Exponential-growth bias (EGB) is the tendency to neglect the power of compounding inter- est. A person with EGB will misperceive the intertemporal budget constraint, overestimating lifetime wealth and underestimating the differences in the cost of consumption across periods . We test four comparative static predictions implied by EGB: (1) compound interest will increase consumption, (2) budget-neutral delays in income will increase consumption, (3) the person will exhibit a form of dynamic inconsistency that depends solely on the current account balance and is independent of time preferences, and (4) framing the frequency of interest in shorter units increases consumption. We test these predictions using an induced-value consumption-savings experiment in the lab, and find evidence in support of all predictions against the rational bench- mark. People may use rules of thumb when making consumption-savings decisions. We consider three rules of thumb as alternative hypotheses and find that they cannot explain the results.
Monopolisten der Gewalt

In the conflict between the regime and the civic movement, which following the falsified election results disputes Aliaksandr Lukashenka’s claim that he has the right to continue to rule the country, the state organs of violence are playing an important role. The regime is deploying special units such as OMON or Interior Ministry troops against the demonstrators. However, although they are still following the orders of the contentious leader, their willingness to obey and the cohesion of the security apparatus should not be overestimated. In 2019, the regime created the legal conditions for the use of the army within the country. To date, it has almost never been deployed. Instead, it has another function: to secure Russia’s Western airspace. As a result, the army has become a coin with a foreign and security policy exchange value in order to convince the Kremlin of the uses of its Belarusian ally.