Miracle-dz/UniFAR-FTUs huggingface dataset:
An Analysis of Parameter Invariance according to Different Sample Sizes and Dimensions in Parametric and Nonparametric Item Response Theory

The aim of this study is to analyze the invariance of the estimated parameters in regard to Item Response Theory (IRT) applications within different dimensionality and sample characteristics. To realize this aim, students' answers in test booklet 'A' of the first stage of TEOG, Secondary Education Placement Test applied by the Ministry of Education in Turkey, in 2015 were used as the data. The population size of the study was determined as 63,871. The groups of 50, 100, 200, 500, 1000 and 5000 people who were randomly selected from the population comprised the sample of the study. One-dimensional mathematics subtest and artificially formed two-dimensional test results were used within IRT applications. As a result of the findings obtained from the study within the analysis of the one-dimensional test in regard to one-dimensional nonparametric IRT (ODNPIRT), item parameter invariance was obtained from the sample size 200. When it was analyzed in regard to one-dimensional parametric IRT (ODPIRT), it was found that at least a sample size of 1000 has to be used for item parameter estimations nearly as high as the population value (parameter). It was found that invariance for item parameters was not obtained by analyzing the two-parameter test in regard to ODPIRT, ODNPIRT and Multidimensional IRT (MDIRT).
Effect Of Knowledge Sharing And Self-Leadership On Innovation Behavior And Employee Performance

The purpose of this study was to determine the significance of the influence of knowledge sharing and self-leadership on innovation behavior and employee performance. The population of this study was all employees of the Wangaya Hospital, amounting to 942 people. The research sample was 90 respondents, determined by the stratified proportionate sampling technique. This study uses structural equation modeling analysis (SEM analysis) with PLS 3.0 applications. The findings of this study are that employee performance is determined by knowledge sharing, self-leadership, and innovation behavior. Innovation behavior cannot yet act as a mediation between knowledge sharing and employee performance.
Gonadal maturity of Crassostrea corteziensis cultivated in the Gulf of California

The gonadal maturation of the pleasure oyster Crassostrea corteziensis during four cultivation cycles (November 2004-June 2005, N4J5; August 2014-February 2016, A14F16; September 2015-December 2016, S15D16; September 2016-August 2017, S16A17) was studied in the southeastern Gulf of California, Mexico. Although C. corteziensis exhibited the typical reproductive phases (undifferentiated or resting, initial gametogenesis, advanced gametogenesis, maturity, spawning and post-spawning), the intensity of reproduction and the timing of the onset of the different phases of gonadal development varied in each cultivation cycle. Reproductive peaks were observed in different months (N4J5 in May, A14F16 in July, S15D16 in May and S16A17 in June) during spring and summer. Spawning correlated with temperature in the N4J5 and A14F16 cultivation cycles but it showed no correlation with chlorophyll-a concentration in any of the cultivation cycles. C. corteziensis presented an opportunistic continuous reproductive strategy with spawning occurring during several months of the year. The modification of the species' reproduction pattern could contribute to the natural settlement of larvae, increasing the natural production of this native oyster resource in the southeast of the Gulf of California, where it has been fished intensively.
Preliminary Study on the Smartphone Zombie Phenomenon by Utilising a Monitoring Application

Several studies exist on the dangers of using a smartphone while walking. Unfortunately, pedestrians often disregard the warnings either intentionally or by accident as their focus is on the phone and not fully on the surrounding environment or situation. In this paper, we present our preliminary work to study the correlation between smart-phone zombie behaviour and individual’s psychological features, to reduce walking use. At ﬁrst, in order to collect smartphone zombie behaviour from actual users, we have developed a monitoring application for smartphones. We asked seven subjects to install this application and continue living their lives normally for 15 days. For collecting the psychological features, we asked them to answer a proﬁling questionnaire.
PROPELLER INSTALLATION EFFECTS ON TURBOPROP ACOUSTICS

Propeller installation options for a twin-engined turboprop aircraft are evaluated at cruise conditions, aiming to identify the quieter configuration. Computational fluid dynamics is used to investigate the near-field acoustics and transfer functions are employed to estimate the interior cabin noise. Co-rotating and counter-rotating installation options are compared. The effect of propeller synchrophasing is also considered. The employed method captures the complexity of the acoustic field generated by the interactions of the propeller sound fields among each other and with the airframe, showing also the importance of simulating the whole problem to predict the actual noise on a flying aircraft. Marked differences among the various layouts are observed. The counter-rotating top-in option appears the best in terms of acoustics, the top-out propeller rotation leading to louder noise because of inflow conditions and the occurrence of constructive acoustic interferences. Synchrophasing is shown to be beneficial for co-rotating propellers, specially regarding the interior noise, because of favorable effects in the interaction between the propeller direct sound field and the noise due to the airframe. An angle closer to the maximum relative blade shift was found to be the best choice, yielding, however, higher sound levels than those provided by the counter-rotating top-in layout. ∗Corresponding author Email addresses: g.chirico. 1@research.gla. ac.uk (Giulia Chirico), George.Barakos@glasgow.ac.uk (George N. Barakos), Nicholas.Bown@dowty.com (Nicholas Bown) Preprint submitted to Journal of Sound and Vibration February 24, 2018
Shame, guilt, and pride 1 Running head: SHAME, GUILT, AND PRIDE ACROSS THE LIFE SPAN Tracking the Trajectory of Shame, Guilt, and Pride Across the Life Span

The authors examined age differences in shame, guilt, and two forms of pride (authentic and hubristic) from age 13 to 89, using cross-sectional data from 2,611 individuals. Shame decreased from adolescence into middle adulthood, reaching a nadir around age 50, and then increased in old age. Guilt increased from adolescence into old age, reaching a plateau at about age 70. Authentic pride increased from adolescence into old age, whereas hubristic pride decreased from adolescence into middle adulthood, reaching a minimum around age 65, and then increased in old age. On average, women reported experiencing more shame and guilt; Blacks reported experiencing less shame and Asians more hubristic pride than other ethnicities. Across the life span, shame and hubristic pride tended to be negatively related to psychological well-being, and shame-free guilt and authentic pride showed positive relations with well-being. Overall, the findings support the maturity principle of personality development and suggest that as people age they become more prone to experiencing psychologically adaptive self-conscious emotions, such as guilt and authentic pride, and less prone to experiencing psychologically maladaptive ones, such as shame and hubristic pride.
PRIOR MODELS FOR ROBUST ADVERSARIAL DEEP LEARNING

Deep networks learned by standard methods of discriminative learning are susceptible to adversarial patterns. Training adversarially robust deep networks therefore requires new learning methods. One interesting option is to include appropriate prior knowledge that will either generalize in a stronger sense by using prior information, or restrict the search space explored by the learning method while, after training, penalizing examples that are unlikely under the data distribution. The thesis aims at analyzing and comparing different types of prior knowledge with respect to their impact on adversarial robustness. A suitable option for convolutional deep networks is to introduce lateral interactions within the convolutional layers to reflect the assumption of spatial continuity.
Influence of Surgical Techniques in Axillary Seroma Formation after Breast Cancer Surgery- A Prospective Randomised Study

1 Senior Consultant, Department of Surgical Oncology, Bhagawan Mahaveer Cancer Hospital & Research Center, Jaipur, Rajasthan, INDIA 2 Consultant, Department of Surgical Oncology, Bhagawan Mahaveer Cancer Hospital & Research Center, Jaipur, Rajasthan, INDIA 3 Professor, Department of Community Medicine, Mahatma Gandhi Medical College, Jaipur *Corresponding Author Dr Shikha Tiwari Consultant, Department of Surgical Oncology, Bhagawan Mahaveer Cancer Hospital & Research Center, Jaipur, Rajasthan, INDIA Abstract Breast cancer is a major public health problem for women throughout the world. Surgery is the main stay of treatment for breast cancer. Seroma formation is seen in all cases post surgery. We conducted a Prospective randomized study of 120 breast carcinoma patients, to compare whether the axillary dissection techniques like electrocautery, cold knife & suture ligation and scissor technique has any impact on seroma formation. The study shows that mean seroma volume with respect to different techniques had significant statistical difference on day five & ten. The mean days of drain removal were 8.65 days for cautery group, 8.10 days for ligation group and 9.2 days for scissor group. There was increase in seroma volume seen with advanced stage (p =0.022). Seroma volume was slightly less in post chemotherapy cases. There was no significant difference observed in seroma volume with respect to nodal status. Seroma volume increased with increase in age.
Corporate Governance Structural Efficiency and Performance of Commercial Banks: Evidence from Banks Listed on the Nairobi Securities Exchange, Kenya

The study investigated corporate governance structuralefficiency and bank performance. The study particularly, looked at board structure and composition, transparency and disclosure and corporate governance practices. The data was collected using closed ended questionnaires. The results indicate that there is a strong, positive and significant relationship between corporate governance structural efficiency and performance of commercial banks in Kenya.The study further found that lean boards, with independent board members are more efficient and contribute to better performance of the bank. Transparency and timely disclosure of accurate, comparable and understandable financial information facilitate efficiency improvement in the banking sector in Kenya. The results further showed that the banks embraced good corporate governance practices.The study recommends that, bank managers should strengthen and ensure implementation of efficient corporate governance mechanisms in order to achieve improved performance. Banks need to review and strengthen their board structure and composition, transparency and disclosure mechanisms and embrace good governance practices to guarantee improved performance.
C O ] 3 O ct 2 01 5 Mathematical aspects of Wiener index

The Wiener index (i.e., the total distance or the transmission number), defined as the sum of distances between all unordered pairs of vertices in a graph, is one of the most popular molecular descriptors. In this article we summarize some results, conjectures and problems on this molecular descriptor, with emphasis on works we were involved in.
Perception of body image and nutritional status in nutrition undergraduates from a public university

A cross-sectional study with 90 first-year (G1) and last-year undergraduates (G2) of a nutrition program conducted to evaluate the association between body image perception and nutritional status. To evaluate the perception and distortion of body image, the Stunkard Silhouettes Scale and the Questionnaire on body image (BSQ 34) were applied. Weight (Kg) and height (m) were measured and nutritional status was classified based on the calculation of body mass index (BMI). The average values for weight, height and BMI were similar in both groups (p > 0.05), but a different result was found for age, whose average was significantly higher among graduates (p < 0.05). It was found that 73.3% of the first-year students and 77.8% of the last-year undergraduates were eutrophic, and the latter had lower prevalence of underweight and overweight compared with the former, without a significant association (p=0.87). Dissatisfaction with thinness or overweight was 62.3% and 82.2% in G1 and G2, respectively. It was found that 20% of the first-year students showed serious body image distortion, with a significant difference when compared to last-year ones (p=0.001). Body image dissatisfaction was quite prevalent, and it was more common among last-year students who had a distorted impression of excess weight. Body image dissatisfaction in different degrees was prevalent in this study, regardless of nutritional status. Physical exercise and healthy eating habits should be encouraged among college students and strategies should be promoted for a better perception of their bodies.
Anomalous impact in reaction-diffusion models

We generalize the reaction-diffusion model A+ B → ∅ in order to study the impact of an excess of A (or B) at the reaction front. We provide an exact solution of the model, which shows that linear response breaks down: the average displacement of the reaction front grows as the square-root of the imbalance. We argue that this model provides a highly simplified but generic framework to understand the square-root impact of large orders in financial markets.
Job Satisfaction Dimensions and Organisational Effectiveness of Selected Petroleum Marketing Companies in Lagos State, Nigeria

Organisational effectiveness is a means towards the attainment of organisational goals and the degree to which objectives are achieved. Organisations try to flourish and adapt to various challenges they encounter in today’s competitive environment by improving their performance. The level of an organization’s effectiveness could be attributed to how satisfied their employeesare.This study therefore investigate the effect of job satisfaction dimensions on organisational effectiveness of selected petroleum marketing companies in Lagos State, Nigeria.Survey research design was adopted for the study. The population of this study consist of the employees of the three selected petroleum marketing companies (Forte Oil Plc, Conoil Producing Plc and Total Nigeria) located in Lagos state, Nigeria. The population was 2725 employees, sample size used for the study is 438, using Raosoft sample size calculator. The stratified random sampling technique was employed. The study used an adapted questionnaire and the data gathered was analysed using descriptive statistics, multiple linear regression analysis, which was carried out with the aid of Statistical Package for Social Sciences (SPSS) version 23 software to test the hypotheses. Findings revealed that job satisfaction dimensions had a positive and significant effect on effectiveness (F (4,377) = 31.532, Adj R 2 = 0.243, p< 0.05). The study concluded that job satisfaction contributes immensely towards effectiveness of selected petroleum marketing companies in Lagos state, Nigeria. The study recommended that the human resource management team of the selected petroleum marketing companies should necessitate proper job satisfaction to its employees as it leads to high level of organisational effectiveness.
Global methane budget and trend, 2010–2017: complementarity of inverse analyses using in situ (GLOBALVIEWplus CH4 ObsPack) and satellite (GOSAT) observations

Abstract. We use satellite (GOSAT) and in situ (GLOBALVIEWplus CH4 ObsPack) observations of atmospheric methane in a joint global inversion of methane sources, sinks, and trends for the 2010–2017 period. The inversion is done by analytical solution to the Bayesian optimization problem, yielding closed-form estimates of information content to assess the consistency and complementarity (or redundancy) of the satellite and in situ data sets. We find that GOSAT and in situ observations are to a large extent complementary, with GOSAT providing a stronger overall constraint on the global methane distributions, but in situ observations being more important for northern midlatitudes and for relaxing global error correlations between methane emissions and the main methane sink (oxidation by OH radicals). The in-situ-only and the GOSAT-only inversions alone achieve 113 and 212 respective independent pieces of information (DOFS) for quantifying mean 2010–2017 anthropogenic emissions on 1009 global model grid elements, and respective DOFS of 67 and 122 for 2010–2017 emission trends. The joint GOSAT+ in situ inversion achieves DOFS of 262 and 161 for mean emissions and trends, respectively. Thus, the in situ data increase the global information content from the GOSAT-only inversion by 20 %–30 %. The in-situ-only and GOSAT-only inversions show consistent corrections to regional methane emissions but are less consistent in optimizing the global methane budget. The joint inversion finds that oil and gas emissions in the US and Canada are underestimated relative to the values reported by these countries to the United Nations Framework Convention on Climate Change (UNFCCC) and used here as prior estimates, whereas coal emissions in China are overestimated. Wetland emissions in North America are much lower than in the mean WetCHARTs inventory used as a prior estimate. Oil and gas emissions in the US increase over the 2010–2017 period but decrease in Canada and Europe. The joint inversion yields a global methane emission of 551 Tg a−1 averaged over 2010–2017 and a methane lifetime of 11.2 years against oxidation by tropospheric OH (86 % of the methane sink).
USING ELECTROSTATIC DISCHARGE FOR COATING SURFACE OF POLYETHYLENE FILM WITH CHITOSAN SUBSTANCE TO EXTEND THE CUCUMBER SHELF LIFE

This work focuses on, surface modification of polyethylene films by electrostatic discharge device and coating of chitosan on the surface of treated film. For this purpose, the surface of polyethylene film was treated by corona electrostatic discharge using different electrode gaps (0.5, 1 and 1.5 cm) and three levels of high voltage (5, 10 and 15 kV). Blown films of low density polyethylene having a thickness of 100 μm and a density of 0.92 g/cm3. The cucumbers (Cucumis sativus) of Cucumbitaceae family was used. The modified polymeric film was immersed in a solution of chitosan 3 wt% for 3 hrs. Physical characterization and antimicrobial activity of chitosan/polyethylene film were evaluated and then it was used as an active package to extend shelf life of cucumber during storage at 4°C. The antimicrobial activity of chitosan/polyethylene composite was evaluated and then it was used as an active package to extend shelf life of cucumber during storage at 4°C. The surface modification of polyethylene films by electrostatic discharge machine (10 kV and 1 cm gap) and coating of chitosan substance was the best in the physical properties of other treatments. The obtained results showed that, chitosan/polyethylene composite film has high antimicrobial properties against Listeria monocytogenes, Pseudomonase aeroginosa and Fusarium oxysporum. Finally, the cucumber storage indicated that, cucumber rapped in chitosan/polyethylene composite have value of weight loss, pH and total aerobic bacteria count as well as yeast and mold count lower than other samples(unwrapped and wrapped in native polyethylene).
NOTE ON BOREL MAPS, CALIBRATED σ-IDEALS AND HOMOGENEITY R. POL AND P. ZAKRZEWSKI

The results outlined in this note provide more information on the topic investigated in our papers [7], [6], [8], which were strongly influenced by the work of Zapletal [13], [15], Farah and Zapletal [1] and Sabok and Zapletal [11]. Given a compactum X (i.e., a compact metrizable space), we denote by BorpXq the σ-algebra of Borel sets in X, and KpEq is the collection of compact subsets of a set E Ď X. A σ-ideal generated by compact sets in X is a collection I Ď BorpXq, closed under taking Borel subsets and countable unions of elements of I, such that any element of I can be enlarged to a σ-compact set in I. We always assume that X R I. A σ-ideal I generated by compact sets in X is calibrated if for any K P KpXqzI and Kn P I X KpXq, n P N, there is a compact set L Ď Kz Ť
Review of Unglazed Transpired Collectors (UTCs)

Today, new technologies are developed to integrate solar collectors into the building envelope. Among these technologies, solar energy harvesting produces either electricity or heat. The proposed review covers the latter approach to heat air. This paper aims to review the remarkable development of the air heating technology, specifically using unglazed transpired collectors. Successively reviewing theoretical studies, numerical studies, experiments, implementation studies, and applications, it demonstrates the different existing physical phenomenon, the design guidelines and behaviour that can be expected. Each section highlights the development avenues and the points that require further investigations.
Mechanical characterization of millimetric agarose spheres using a resonant technique

This paper presents a methodology for the mechanical characterization of agarose millimetric spheres using resonant principles. Detection of the modes of vibration was conducted using a low-cost experimental setup based on an electret microphone adapted with a thin latex elastic membrane for the sensing stage and a piezoelectric actuator driven by a conventional transformer for the excitation stage. The identification of vibration modes is supported through an ANSYS Finite Element model of the experimental setup. Experimental and numerical results demonstrate that two modes of vibration, known as Quadrupole and Octupole, appear in the amplitude spectrum and can be used to obtain stiffness values for the samples. Following this approach, Young’s modulus of 209 ± 19.80, 338 ± 35.30 and 646 ± 109 kPa for 2%, 3% and 4% agarose millimetric spheres were calculated.
Exploring the Impact of Blended Learning on Learners’ Academic Performance in Accounting

: Background : Academic performance in Accounting in the EGCSE curriculum has been poor since 2012, hence the study explored the impact of blended learning on learners‟ academic performance in Accounting. The study sought to achieve and answer four objectives and research questions. It determined mean performance and difference in mean performance for the experimental and control group in the pre-test and post-test. It hypothesised that there was no significant difference in the mean performance for the two groups in both tests. Materials and Methods : The study was quantitative in nature and a quasi-experimental design was used. It involved Form 5 intact classes in two schools (selected on convenience and purposive). In School A (experimental group, n=12) learners were taught using blended learning method whilst in School B (control group, n=16) learners were taught using traditional method. Pre and post tests were used to gather data which were analysed using means, standard deviation, independent samples t-tests computed on SPSS 20. Results : The results showed a statistically significant difference (p=0.004, p>0.05) in the mean performance of the experimental and control group in the pre-test in favour of the control group. A significant difference (p=0.008, p>0.05) in the mean performance of the experimental and control group in the post-test in favour of the experimental group was also revealed. Conclusion: The study concluded that blended learning improves learners‟ academic performance in Accounting.