Miracle-dz/UniFAR-FTUs huggingface dataset:
Influence of measurement type and the moment of occurrence of low performance behaviour's on task and citizenship performance appraisal

This research studies whether the moment of occurrence of a task or contextual behaviour with a low performance produces a primacy or recency effect and whether it causes changes in performance appraisal. We also analyzed whether the nature of assessment questionnaire items affects raters’ assessments and how the sequence of questionnaire presentation and completion may do so. Participants were 146 undergraduate students. We used a design with two inter-subject variables (questionnaire presentation and performance sequence) and one within-subject variable (global versus specific questionnaires). Findings show that if a low performance is presented at the beginning of the assessment period, the performance assessment will be more negative. Also, results indicate that task performance appraisals and contextual behaviour assessments are higher and less accurate when performed with a questionnaire that includes global items.
Age-coherent extensions of the Lee–Carter model

Age coherence describes the property that forecast mortality rates across ages will not diverge in the long run. Although intuitively and biologically reasonable, this property is lost when the seminal Lee–Carter (LC) model and almost all its existing extensions are employed. In this paper, we propose two effective extensions of the LC model, allowing for the geometric (LC-G) and hyperbolic (LC-H) decayed relative speed of mortality decline at each age, over the out-of-sample forecasting steps. Those approaches are based on the original in-sample estimates of LC, which are easy to obtain. An inversed Epanechnikov kernel is employed to model the geometric and hyperbolic parameters across ages, and unknown parameters are selected via a data-driven method. With little added computational cost to LC, our approaches incorporate the dynamic and rotating relative speeds of mortality decline over ages, recognize the growing difficulty of such declines at older ages, provide age-coherent forecasts of mortality rates in the long run, and is easily extensible to multi-population cases. Using a large sample of 15 countries, we demonstrate that LC-G and LC-H, as well as their multi-population counterparties, consistently improve the forecasting accuracy of the competing LC model and its single- and multi-population extensions.Feng, L. , Shi, Y. , & Chang, L. (2021). Forecasting mortality with a hyperbolic spatial temporal VAR model. International Journal of Forecasting, 37(1), 255–273.
Cost-Benefit Analysis of Vishnugad-Pipalkoti Hydro-Electricity Project

Hydroelectricity is often considered to be “clean” in view of less carbon emissions especially in comparison to thermal power. However, hydropower is intrusive in the natural environment and has many environmental costs that may outweigh the benefits from reduced carbon emissions. Hydroelectricity projects (HEPs) in India are required to submit a Cost-Benefit Analysis (CBA) statement in the approval processes. However, the monetary value of the environmental costs is not required to be calculated and not considered in the approval process. Thus, the projects are approved even if the costs are greater than the benefits. The projects are required to submit an “Environment Management Plan” (EMP) to mitigate the adverse environmental impacts. However, the proposals made in the EMP are inadequate to mitigate the impacts and are more cosmetic than real. The calculation of monetary value of environmental impacts is resource intensive. This paper suggests that proxy values can be used to arrive at an estimate. Ignoring the environmental costs because of absence of robust estimates is tantamount to assuming that the environmental costs are zero which is not plausible. Taking the Vishnugad-Pipalkoti HEP as an example, it is shown that the project overestimates the benefits and underestimates the costs. The Cost-Benefit Ratio (CBR) is less than 1 irrespective of whether the environmental benefits and costs are included or excluded. The paper argues that hydropower is not as green as often said to be.
Structuring of Thin-Film Polymer Mixtures upon Solvent Evaporation

We theoretically study the impact of solvent evaporation on the dynamics of isothermal phase separation of ternary polymer solutions in thin films. In the early stages we obtain a spinodal length scale that decreases with time under the influence of ongoing evaporation. After that rapid demixing occurs at a well-defined lag time, a morphology emerges of which the compositions of the coexisting phases rapidly approach the binodal values. We find that the type of morphology, which can be either bicontinuous or dispersed, strongly depends on the evaporation rate if the solubility of the two solutes in the common solvent differs. We derive expressions that relate both the lag time and length scale characterizing the emerging morphology to all relevant physical parameters. These include the tracer diffusivities, the interaction parameters, the degrees of polymerization, the blend composition, and the evaporation rate. In agreement with our numerical results, we find the latter to scale with a one-sixth power o.
Chiavennite, CaMnBe 2 Si 5 O 13 (OH) 2 .2H 2 O, a new mineral from Chiavenna (Italy)

Occurs as euhedral orange grains and as crusts coating beryl in Alpine pegmatites. Usually associated with bavenite. Optically biaxial, faintly pleochroic. Orthorhombic, P2 1 ab, with a = 8.729(5), b = 31.326(11), c = 4.903(2) angstrom, Z = 4. Genesis is related to late fluid activity within the pegmatite. --Modified journal abstract.
Pengembangan Media Video Animasi IPA pada Pokok Bahasan Sistem Pernapasan Kelas V

Penelitian ini dilatar belakangi oleh kurangnya pemanfaatan media sebagai sarana pendukung pembelajaran dimasa pandemi saat ini. Media yang digunakan masih menggunakan buku siswa sehingga siswa belum memahami materi secara optimal. Penelitian ini bertujuan untuk mengembangkan video animasi IPA pada materi Sistem Pernapasan untuk siswa kelas V. Penelitian ini menggunakan model Hannafin and Peck (Analysist, Design, Implementation & Development). Metode pengumpulan data penelitian ini menggunakan wawancara, observasi, dan kuesioner. Metode analisis data yang digunakan adalah analisis deskriptif kualitatif dan analisis deskriptif kuantitatif. Hasil penelitian ini menyimpulkan bahwa pada hasil uji ahli isi pembelajaran memperoleh skor 98,20% dengan kualifikasi sangat baik, hasil uji ahli desain pembelajaran memperoleh skor 100% dengan kualifikasi sangat baik, hasil uji ahli media pembelajaran memperoleh skor 98,6% dengan kualifikasi sangat baik, hasil uji coba perorangan memperoleh skor 95% dengan kualifikasi sangat baik, dan hasil uji coba kelompok kecil memperoleh skor 95% dengan kualifikasi sangat baik. Berdasarkan hasil analisis data uji produk oleh para ahli dan hasil uji coba siswa disimpulkan bahwa media video animasi hasil penelitian ini sangat baik sehingga layak digunakan dalam pembelajaran IPA di sekolah dasar. Implikasi dari penelitian ini yaitu secara empiris terbukti bahwa penggunaan media video animasi dapat meningkatkan hasil belajar dan motivasi belajar siswa.
Insulator-to-metal transition of WO3 epitaxial films induced by electrochemical Li-ion intercalation

We investigated the systematic evolution of the structural and electronic properties of LixWO3 films induced by Li-ion electrochemical reactions. Chronoamperometric Li-ion intercalation could control the Li content up to x ∼ 0.5. The resistivity decreased abruptly with increasing x, and the films underwent an insulator-to-metal transition (IMT) within a range of 0.2 < x < 0.24, which was consistent with the IMT of cubic NaxWO3. X-ray diffraction analyses revealed the coexistence of tetragonal and cubic phases across the IMT, suggesting that the alkaline ion content was the primary factor in the metallic conductivity of the ReO3-type WO3 system.
Should we wear a velvet glove to enforce Information security policies in higher education?

ABSTRACT The United States higher education is facing a unique challenge in information security management due to its distinctive characteristics, such as decentralised structure, academic freedom, and shared governance. These characteristics sharply distinguish higher education from traditional corporations. Gradually, this is beginning to pose a challenge for higher education institutions to adopt the appropriate information technology governance framework, which, for traditional corporations, mostly addresses security governance and leadership in a top-down manner. To address this issue, we examine the effect of perceived information security management approaches on perceived security practices. Our results show that the perceived flexible-oriented approach of information security management is more effective to use in implementing security controls in high education institutions. This seems to contradict most of the findings in the literature that suggest that a control-oriented approach is more effective in enforcing information security policies. Research contributions and implications are discussed, accordingly.
Clinicoradiological correlation between preoperative high-resolution computed tomography findings and intraoperative findings in chronic otitis media (squamous type)

Background: Chronic otitis media is a major health problem with significant morbidity. High-resolution computed tomography (HRCT) is extremely useful for middle ear pathology and extension of the disease. The objective was to study the correlation between preoperative HRCT and intraoperative findings in chronic suppurative otitis media (squamous type). Methods: This analytical study included 61 cases of chronic otitis media (squamous type). Preoperative HRCT findings were correlated with intraoperative findings. Sensitivity, specificity, PPV, NPV and kappa value were estimated. Results: Out of 61 cases 32 were males and 29 were females. Presence of cholesteatoma found on HRCT with 80% sensitivity with k value 0.83 suggesting very good agreement. About ossicular status k value of incus, malleus and stapes were 0.76, 0.65 and 0.54 respectively with sensitivity of 91%, 85% and 58% respectively. Other critical areas on HRCT like sigmoid sinus plate erosion, tegmen tympani dehiscence, scutum erosion, lateral semicircular canal erosion, facial canal erosion and jugular bulb were seen with k value was about 1, 0.8, 0.9, 0.82, 0.72 and 0.65 respectively. So, HRCT shows perfect radiosurgical agreement for sinus plate erosion, very good agreement for disease extension, incus erosion, tegmen tympani erosion, scutum erosion and LSCC erosion and fair agreement for malleus erosion, facial canal erosion and jugular bulb dehiscence and poor agreement for stapes erosion. Conclusions: HRCT is a reliable preoperative investigation in cases of chronic otitis media, squamosal type which would provide a bird’s eye view in the disease process in the ear.
Atypical ductal hyperplasia on percutaneous breast biopsy: Scoring system to identify the lowest risk for upgrade

Purpose NCCN guidelines recommend surgical excision for all patients with atypical ductal hyperplasia (ADH) on percutaneous biopsy. Improved imaging and biopsy techniques have lower contemporary upgrade rates, challenging standard practice. Methods A retrospective analysis identified 87 percutaneous biopsies diagnosing ADH who underwent surgical excision at a single institution from 01/2008 to 10/2015. Imaging was reviewed for lesion size and residual calcifications. Biopsy slides were reviewed for ADH features. Categorical variables were analyzed using Chi-square and Fisher’s exact tests; continuous variables with T- and Wilcoxon tests. Logistic regression model was used to determine association between odds of upgrade and number of low-risk features. Results Upgrade was identified in 13 cases (14.9%; 11 ductal carcinoma in situ and 2 invasive breast cancer). Imaging features associated with lowest risk of upgrade included imaging size < 1cm (p = 0.004) and > 50% removed by biopsy (p = 0.03). The only pathologic feature significantly associated with upgrade was the presence of micropapillary features (p = 0.10), with lower extent of ADH (1–2 foci, p = 0.12) trending toward significance. Those with the lowest risk of upgrade (0%) had all 4 low risk features (n = 17, 20%). The loss of a low-risk feature increased the odds of upgrade by 189% (OR = 1.89, 95% CI 0.241,0.742, p = 0.001). Conclusion Contemporary imaging and biopsy techniques have resulted in lower upgrade rates for ADH. Patients at lowest risk for upgrade can be identified using a scoring system and may be safely offered active surveillance over surgical excision.
Capillary GC Determination of β-Elemene,Camphor and Borneol in Chrysanthemum morifolium Ramat.

Objective:To determine the contents of β-elemene,camphor and borneol in different varieties of Chrysanthemum morifolium Ramat.Methods:The essential oil was extracted by steam distillation.The contents of three components were analyzed by capillary columns gas chromatography with HP-5(30m×0.32mm,0.25μm) capillary column.The column temperature was 70℃ to 260℃ and rose by the program:70℃(? )140℃ (? )260℃. The injector temperature was 280℃,the detector temperature of FID was set at 300℃,N_2 was used as carrier gas.n-Octanol and n-tetradecane were as internal standard substances for β-elemene and camphor,borneol respectively.Results:The linear ranges of three components were 0.6250-10.00mg·mL~(-1), 0.02231-0.3570 mg·mL~(-1) and 0.01143-0.1828 mg·mL~(-1) respectively;the RSD for repeatability were 0.90%,1.7%. 1.9% and the average recoveries were 96.6%-99.9%,97.5%-98.3% and 99.5%- 102.3%. Conclusion:The method developed is accurate,sensitive and simple which can be applied to determina- tion of these three components in Chrysanthemum morifolium Ramat.simultaneously.
Determination of (p)ppGpp Levels During Stringent Response in Streptomyces coelicolor by Thin Layer Chromatography

[Abstract] The stringent response in bacteria is a stress response that is mediated by the signaling molecules guanosine tetraphosphate and pentaphosphate [(p)ppGpp], alarmones that are also directly related to virulence. Therefore, determination of (p)ppGpp levels is crucial for studying the stringent response. The protocol here outlines in a step-wise manner the detection of (p)ppGpp in the bacterium Streptomyces coelicolor during stringent response (Strauch et al ., 1991) by thin layer chromatography (TLC). In the example shown here, stringent response is induced by addition of serine hydroxamate, an inhibitor of seryl tRNA synthetase. This protocol was first published in Molecular Microbiology (Sivapragasam and Grove, 2016). [Background] Thin layer chromatography has been used for analyzing (p)ppGpp levels during stringent response in various bacterial species for a long time, and it is a generally accepted method for this purpose. However, previously published protocols only summarized the main concepts, and it was challenging to identify a comprehensive protocol that comprised every step of the procedure. We present here a detailed protocol that has been optimized for studying stringent response in S. coelicolor. Steps unique to handling of S. coelicolor cultures have been identified, and the protocol can therefore be readily adapted to other bacterial species. The method relies on the use of TLC plates that incorporate polyethyleneimine (PEI), which is a strong basic anion exchanger. PEI is therefore the matrix of choice for separation of ionic compounds such as phosphorylated nucleosides
Antioxidant activity of strawberry (Fragaria × ananassa Duch.) leaves

ABSTRACT Antioxidant activity of aqueous extracts from two cultivated strawberry leaves, Senga Sengana and Mount Everest, obtained by maceration, reflux extraction and ultrasonic extraction, was investigated. Antioxidant activity of extracts was assessed by DPPH, FRAP, FIC and H2O2 test; total phenolics and flavonoids were assessed by Folin–Ciocalteu and aluminium chloride methods, respectively. Extract obtained from Senga Sengana by reflux extraction, containing higher amounts of extractive matter, total phenolics and flavonoids, has shown higher antioxidant activity (EC50(DPPH) = 10.4 μg/mL; FRAP = 258.61 mgFe2+/g dry extract. ; FIC activity = 62.6% in concentration of 2 mg/mL; H2O2 scavenging = 25.43% in concentration of 0.5 mg/mL) compared to extracts obtained by other extraction techniques. Rutin, coumaroyl-galloyl-glucopyranoside, hydroxyphenylethyl-coumaroyl-glucopyranoside, derivates of hydroxyphenylethyl-coumaroyl-glucopyranoside, chlorogenic acid and p-coumaroylhexose have been identified by UHPLC–DAD–HESI–MS analysis.
The Effects of Service Quality Determinants on Intention to Purchase: Focused on Internet Insurance

Information technology that makes information sharing easier has been developed, and the number of consumers who are accustomed to using digital devices has increased. With the advent of the non-face-to-face financial era, insurance companies and consumers are increasingly interested in Internet insurance, where customers can meticulously check and subscribe online without going through an insurance agency. Internet insurance is expected to grow further as it is not only a simple product structure, but also is easy to use, with low insurance premiums, and has various information available. This study focuses on analyzing the relationship between quality of service in internet insurance and intention to use, user satisfaction, and intention to purchase. The factors that determine service quality were classified into transaction swiftness, autonomy of choice, competitiveness of insurance premiums, and quality of information. The summary of the study is as follows. First, transaction swiftness had a significant effect on the intention to use and on user satisfaction. Second, autonomy of choice had no significant effect on the intention to use and on user satisfaction. Third, the competitiveness of insurance premiums had a significant effect on the intention to use and on user satisfaction. Fourth, the quality of information had no significant effect on the intention to use but had a significant effect on user satisfaction. Fifth, the intention to use had a significant effect on the intention to purchase and user satisfaction had a significant effect on the intention to purchase.
Machine Learning for the Prediction of Progression in Patients with Acute Kidney Injury in Critical Care

Background: Acute kidney injury (AKI) is a serve and harmful syndrome in the intensive care unit. The purpose of this study is to develop a prediction model that predict whether patients with AKI stage 1/2 will progress to AKI stage 3. Methods: Patients with AKI stage 1/2, when they were ﬁrst diagnosed with AKI in the Medical Information Mart for Intensive Care (MIMIC-III), were included. We excluded patients who had underwent RRT or progressed to AKI stage 3 within 72 hours of the ﬁrst AKI diagnosis. We also excluded patients with chronic kidney disease (CKD). We used the Logistic regression and machine learning extreme gradient boosting (XGBoost) to build two models which can predict patients who will progress to AKI stage 3. Established models were evaluated by cross-validation, receiver operating characteristic curve (ROC), and precision-recall curves (PRC). Results: We included 25711 patients, of whom 2130 (8.3%) progressed to AKI stage 3. Creatinine, multiple organ failure syndromes (MODS), blood urea nitrogen (BUN), sepsis, and respiratory failure were the most important in AKI progression prediction. The XGBoost model has a better performance than the Logistic regression model on predicting AKI stage 3 progression (AU-ROC, 0.926; 95%CI, 0.917 to 0.931 vs. 0.784; 95%CI, 0.771 to 0.796, respectively). Conclusions: The XGboost model can better identify patients with AKI progression than Logistic regression model. Machine learning techniques may improve predictive modeling in medical research. Keywords: Acute kidney injury; Critical care; Logistic Models; Extreme gradient boosting
How parental autonomy support prevent from adolescents’ depression and low self-esteem: a mediational model with trait Emotional Intelligence

Objective: The main aim of this study was to deepen the literature about parental autonomy support, analysing the relation between its two dimensions, Promotion of Independence (PI) and Promotion of Volitional Functioning (PVF), and adaptive outcomes in adolescents. Specifically, it was hypothesized that both components would predict higher self-esteem and lower depression in adolescents, through the mediation of trait Emotional Intelligence (trait EI). Method: A total of 283 adolescents, aged between 14 and 17 years (M=15.53; SD=1.21), participated in this study. They completed the Center for Epidemiologic Studies- Depression Scale (CES-D), the Promotion of Independence (PI) and Promotion of Volitional Functioning (PVF), the Rosenberg Self-Esteem and Trait Emotional Intelligence Questionnaire- Adolescent Short Form (TEIQue-ASF). Results: It was found that parental autonomy support predicted trait EI, which in turn fully mediated the relation between supportive practices and psychological outcomes in adolescents, with several interesting parent gender differences. Conclusions: This study highlights how autonomy-supportive practices are fundamental for healthy and adequate development of emotional intelligence in adolescents. It also contributes to the advancement of research on the contextual and individual mechanisms underlying the functional adaptation of offspring.
Female Bioengineering: Primordial Germ Cell Differentiation of Mesenchymal Stem Cells onto Placental Scaffolds

Introduction: Female infertility is a condition that is currently treated through the maximization of existing reserves; a necessity due to the fact that a true reversal of the processes leading to infertility is not yet technologically possible. This experiment examined the ability of mesenchymal stem cells to differentiate into primordial germ cells (PGC) when cultured onto the placental scaffold. Methods: To produce the scaffolds, the cotelydons were collected and decellularized by umbilical vessel SDS perfusion. Adipose derived cells were isolated based on rapid adherence to the plastic. Results: The isolated cells displayed the markers CD90 and 105, while lacked CD34 and CD45. When seeded onto the scaffold, the cells successfully differentiated into PGC like cells, displaying typical PGCs markers, including STELLA, OCT4, DAZL and VASA. Discussion: These materials were chosen for their low cost and wide availability. The data in this study show the promising potential of cell-scaffold complex to support the development of female tissue engineering-based regenerative medicine therapies.