Miracle-dz/UniFAR-FTUs huggingface dataset:
Combining program visualization with programming workspace to assist students for completing programming laboratory task

Numerous Program Visualization tools (PVs) have been developed for assisting novice students to understand their source code further. However, none of them are practical to be used in the context of completing programming laboratory task; students are required to keep switching between PV and programming workspace when they need to know how their code works. This paper combines PV with programming workspace to handle such issue. Resulted tool (which is named PITON) has 13 features extracted from PythonTutor, PyCharm, and student’s feedbacks about PythonTutor. According to think-aloud and user study, PITON is more practical to be used than a combination of PythonTutor and PyCharm. Further, its features are considerably helpful; students rated these features as useful and frequently used.
An optimized DCT compressor based on Cordic-Loeffler approach for wireless endoscopic capsule

Advanced endoscopic imaging needs store large quantities of digitized clinical data. In order to save wireless transmission power and bandwidth, an efficient image compression algorithm needs to be implemented inside the endoscopy capsule. In this paper, an optimized DCT compressor based on coordinate digital computer (Cordic) Loeffler is presented specially designed for wireless capsule endoscopy application. It has obtained by optimizing the Loeffler DCT based on Cordic algorithm. Therefore, the computational complexity is reduced significantly from 38 additions and 16 shift operations to 30 additions and 16 shift operations. Moreover, to further, ameliorate our results, we use modified carry look ahead adder and carry save adder, which have characterized by low power and high speed compared to classical carry look ahead adder. The proposed design is implemented on field programmable gate arrays and simulated using Matlab language. The simulation is performed on several endoscopic images. Hence, the obtained result can significantly guarantee the image quality as long as the average peak signal-to-noise ratio (PSNR) is 38.99 dB. Compared with the contemporary VLSI architectures, our approach can offer, lower power consumption, a high quality image, a lower number of arithmetic operations. It should be noted, that the suggested DCT architecture is very suitable for low-power and high-quality codecs, which grants the image quality.
Impacts of the fall 2007 California wildfires on surface ozone: Integrating local observations with global model simulations

This study quantifies the impact of the fires in California in fall 2007 on regional air quality and especially on surface ozone by analyzing surface observations of ozone concentrations together with global chemistry transport model simulations. The latter include a synthetic tracer providing information about the amount of ozone produced from the fires. It is shown that the global model is well suited for simulating the overall fire impact and a valuable tool for extracting information about the fire influence from the observations. A clear increase in observed ozone is found when the model predicts a strong impact of pollution from the fires, where measured afternoon 8‐hour concentrations increased, on average, by about 10 ppb. The findings demonstrate that intense wildfire periods can significantly increase the frequency of ozone concentrations exceeding current U.S. health standards, and might cause violations also during photochemically less active seasons. The study also demonstrates the far‐reaching impact of ozone production from the fires.
Service Quality of Travel Agents: The Viewpoint of Tourists in Egypt

Globalization, liberalization, and the internationalization of services are difficult challenges facing travel agents in Egypt. Thus, service quality is very important to be in competition, it is a key factor in differentiating service products and building a competitive advantage in tourism. The purpose of this study was to assess customers' expectations and perceptions of service provided by travel agents, and to discover how the service factors were related to overall satisfaction. The results of factor analysis suggested five factors derived from 26 attributes affecting service quality, and the result of regression analysis of these five factors of the service quality indicated that overall customer satisfaction was highly affected by resource and corporate image. The study concluded that customers' expectations of service quality exceeded their perceptions, with the tangibility dimensions having the largest gap.
Can Shadow IT Facilitate Knowledge Sharing in Organizations? An Exploratory Study

: Employees increasingly use unauthorized technologies at the workplace, referred to as Shadow Information Technology (SIT). Previous Research identifies that shadow technologies are often collaborative systems used by employees to communicate and share content with co-workers, clients, or external partners. Considering that Shadow Information Technology is often a collaborative system, and its usage has the objective of effective and productive completion of work tasks, we propose that this employee initiative, called Shadow Information Technology, can stimulate organizational knowledge sharing (KS), which is central to knowledge management practices. Knowledge sharing can leverage innovation and organizational learning, increase productivity, among others benefits. Thus, this research aims to analyze how knowledge sharing occurs via Shadow Information Technology. This is an exploratory study based on a qualitative approach. We performed interviews with ten Information Technology users to understand how knowledge sharing occurs through Shadow Information Technology. Our findings identify that most of the respondents use collaborative systems and mobile devices unauthorized by the Information Technology department to share knowledge and communicate faster with their co-workers. The most common shadow systems cited are WhatsApp and Skype, as well as solutions to store and share content, like Google Drive. In addition, several employees reported using Shadow Information Technology mainly because organizations do not provide suitable tools to communicate efficiently. We conclude that Shadow Information Technology can facilitate knowledge sharing, especially when people are geographically distributed, since these shadow systems provide faster and dynamic communication. Our theoretical contribution is to expand current knowledge about Shadow Information Technology and reinforce the importance and prevalence of informal and decentralized knowledge sharing within organizations. As for the practical implications, our paper can help Information Technology managers to understand Shadow Information Technology usage, how they can balance the risk and benefits of this phenomenon, and how knowledge sharing can be facilitated by Shadow technologies.
Isolation of culturable endophytic bacteria from Moso bamboo (Phyllostachys edulis) and 16S rDNA diversity analysis

We analyzed culturable endophytic bacteria from Moso bamboo (Phyllostachys edulis) using traditional bacterial isolation and culture methods and then studied the colony characteristics and diversity with a 16S rDNA sequence analysis. We isolated 82 endophytic bacteria strains belonging to 47 species in 26 genera from the root, rhizome, stem and leaves of Moso bamboo species from populations on Wuyi Mountain, and in the Jiangle and Changting regions. There were significant differences in the composition of the culturable endophytic bacteria isolated from the different areas and from different tissues. The dominant bacteria strains from the Wuyi Mountain samples were Arthrobacter, Staphylococcus, Bacillus and Enterobacter, while the dominant bacteria from the Jiangle samples were Bacillus, Staphylococcus and Curtobacterium, and the dominant bacteria in the Changting samples were Alcaligenes, Pseudomonas, Staphylococcus and Bacillus. Our results demonstrate the abundant diversity of endophytic bacteria in Moso bamboo.
ADVANCES IN ANESTHESIA Care of the Morbidly Obese Parturient

Obesity in the United States is increasing, even epidemic, in prevalence and has a negative impact on the pregnant patient and her fetus, increasing the risk of pregnancy complications and poor pregnancy outcomes. Obese parturients require a multidisciplinary obstetric care team to manage the many consequent physiologic derangements. As members of the obstetric care team, anesthesiologists must be aware of the potential metabolic, cardiovascular, neurologic, and respiratory comorbidities. Balance of the obstetric, maternal, fetal, and anesthetic concerns of these patients can be optimized with early interventions, consultation and education, preparation for potential emergent interventions, and a multidisciplinary approach to both patients: mother and fetus.
SUCCESSFUL LEADERSHIP COMPONENTS: A QUALITATIVE APPROACH

There has been very little research on leadership using the qualitative approach in the Arab world. The current study aims to explore and examine the perceptions of a sample of non-Kuwaiti leaders work in Kuwait toward the effective and successful leadership components. A qualitative approach using semi-structured interview was chosen for capturing the perceptions and attitudes of non-Kuwaiti toward the effective leadership. Participants indicated that personal traits, culture awareness, communication, human-task oriented, and participation and empowerment are the main components of a successful leadership in Kuwait work environment. The results may help top managers and human resource managers in selection and recruitment processes by examining the best candidates to be hired or promoted to hold a leadership position which in turn will increase organization effectiveness.
Surface state dominated transport in topological insulator Bi2Te3 nanowires

We report on low temperature magnetoresistance measurements on single-crystalline Bi2Te3 nanowires synthesized via catalytic growth and post-annealing in a Te-rich atmosphere. The observation of Aharonov-Bohm oscillations indicates the presence of topological surface states. Analyses of Subnikov-de Haas oscillations in perpendicular magnetoresistance yield extremely low two-dimensional carrier concentrations and effective electron masses, and very high carrier mobilities. All our findings are in excellent agreement with theoretical predictions of massless Dirac fermions at the surfaces of topological insulators.
A global space-based stratospheric aerosol climatology: 1979–2016

Abstract. We describe the construction of a continuous 38-year record of stratospheric aerosol optical properties. The Global Space-based Stratospheric Aerosol Climatology, or GloSSAC, provided the input data to the construction of the Climate Model Intercomparison Project stratospheric aerosol forcing data set (1979–2014) and we have extended it through 2016 following an identical process. GloSSAC focuses on the Stratospheric Aerosol and Gas Experiment (SAGE) series of instruments through mid-2005, and on the Optical Spectrograph and InfraRed Imager System (OSIRIS) and the Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observation (CALIPSO) data thereafter. We also use data from other space instruments and from ground-based, air, and balloon borne instruments to fill in key gaps in the data set. The end result is a global and gap-free data set focused on aerosol extinction coefficient at 525 and 1020 nm and other parameters on an “as available” basis. For the primary data sets, we developed a new method for filling the post-Pinatubo eruption data gap for 1991–1993 based on data from the Cryogenic Limb Array Etalon Spectrometer. In addition, we developed a new method for populating wintertime high latitudes during the SAGE period employing a latitude-equivalent latitude conversion process that greatly improves the depiction of aerosol at high latitudes compared to earlier similar efforts. We report data in the troposphere only when and where it is available. This is primarily during the SAGE II period except for the most enhanced part of the Pinatubo period. It is likely that the upper troposphere during Pinatubo was greatly enhanced over non-volcanic periods and that domain remains substantially under-characterized. We note that aerosol levels during the OSIRIS/CALIPSO period in the lower stratosphere at mid- and high latitudes is routinely higher than what we observed during the SAGE II period. While this period had nearly continuous low-level volcanic activity, it is possible that the enhancement in part reflects deficiencies in the data set. We also expended substantial effort to quality assess the data set and the product is by far the best we have produced. GloSSAC version 1.0 is available in netCDF format at the NASA Atmospheric Data Center at https://eosweb.larc. nasa.gov/ . GloSSAC users should cite this paper and the data set DOI ( https://doi.org/10.5067/GloSSAC-L3-V1.0 ).
A Longitudinal Analysis of the Forgiveness Process in Romantic Relationships

A LONGITUDINAL ANALYSIS OF THE FORGIVENESS PROCESS IN ROMANTIC RELATIONSHIPS Jeffrey R. Volkmann Ph.D. George Mason University, 2009 Dissertation Director: Dr. James E. Maddux The present study examined the effects of romantic relationship transgressions on victims’ thoughts and feelings about their relationship over a two week period. The 157 participants experienced the transgression an average of 8.96 days (SD = 3.77) prior to the collection of baseline data and 25.18 days (SD = 6.31) prior to the collection of the follow-up data. The study examined the precursors of victims’ forgiveness motivations following transgressions and the subsequent effects forgiveness has on the victims’ relationship cognitions and emotions. Path analyses models found apology sincerity, responsibility attributions and empathy to independently predict concurrent forgiveness. In addition, forgiveness was an important predictor of relationship closeness, commitment and termination cognitions following a transgression. The implications of the results on transgression and forgiveness research are discussed along with future research directions
Training hydrologists to be ecohydrologists: A 'how-you-can-do-it' example leveraging an active learning environment

Structuring an education strategy capable of addressing the various spheres of ecohydrology is difficult due to the inter-disciplinary and cross-disciplinary nature of this emergent field. Clearly, there is a need for such strategies to accommodate more progressive educational concepts while highlighting a skills-based education. To demonstrate a possible way to develop courses that include such concepts, we offer a case-study or a ’how-you-can-do-it’ example from an ecohydrology course recently co-taught by teachers from Stockholm University and Cornell University at Stockholm University’s Navarino Environmental Observatory (NEO) in Costa Navarino, Greece. This course focused on introducing hydrology Master’s students to some of the central concepts of ecohydrology while at the same time supplying process-based understanding relevant for characterizing evapotranspiration. As such, the main goal of the course was to explore central theories in ecohydrology and their connection to plant-water interactions and the water cycle in a semiarid environment. In addition to presenting this roadmap for ecohydrology course development, we explore the utility and effectiveness of adopting active teaching and learning strategies drawing from the suite of learn-by-doing, hands-on, and inquiry-based techniques in such a course. We test a gradient of ’activeness’ across a sequence of three teaching and learning activities. Our results indicate that there was a clear advantage for utilizing active learning techniques in place of traditional lecture-based styles. In addition, there was a preference among the student towards the more ’active’ techniques. This demonstrates the added value of incorporating even the simplest active learning approaches in our ecohydrology (or general) teaching.
THE NON-NEUTRALITY OF THE ARM'S LENGTH PRINCIPLE WITH IMPERFECT COMPETITION*

The Arm’s Length Principle (ALP) has been broadly adopted by OECD countries to avoid the use of firm’s internal transfer pricing as a device for shifting profits into low tax jurisdictions. While the ALP does not affect market outcomes under perfect competition, we show that its adoption is non-neutral under imperfect competition: a strict (lax) application of the ALP softens competition among subsidiaries (parents). Thus, under imperfect competition optimal transfer pricing regulations must account for their impact on market outcomes, as well as for their impact on tax revenue.
Teacher Educators’ Understanding of Their Language-Oriented Development in Content-Based Classroom Interaction

Many studies have suggested that personal practical knowledge is essential for professional development. Recently, there has been growing recognition of the importance of teacher educators’ personal practical knowledge of ‘language’ for student learning development. However, the need for teacher educators to first understand their own language-oriented development in content-based classroom interaction has not received as much emphasis. The current intervention study investigates how eleven experienced teacher educators understand their language-oriented development through the control of task difficulty, small-group instruction and directed response questioning. Data were examined by conducting content and constant comparison analyses. The results showed that the intervention affected the educators’ language-oriented development, which in turn affected their awareness and decisions made to improve their methods of initiation and response during classroom interaction. The results call for more concrete ways to expend teacher educators’ practical knowledge of language to further develop and enhance their language-oriented teaching performance in content-based classroom interaction.
Interaction effects affecting human performance in manual assembly

This paper presents an experimental study aimed at investigating interaction effects affecting personnel in manual assembly. The main experiment with 36 subjects used a mixed method design which included a quantitative study, including time and errors as dependent measures, and a qualitative study, including workload ratings and a questionnaire. The overall task in the experiment was to assemble components on a pedal car. The main factors involved were assembly information (text & component numbers or photographs), material presentation (using structured kits, unstructured kits and material racks) and component variation (situations with and without component variation). It was found that performance, measured in assembly time, was best when combining photographs with no component variants and when using an unstructured kit.
Risk Assessment of Unsecured Loans - Example of Entering a New Market

Objective: The objective of the paper is to show the risk assessment of unsecured loans in theory and practise. Research Design & Methods: In the first part, the paper makes a literature review with regard to the theory unsecured loans and their risk assessment. In the second part, a case study discusses the risk assessment process as a practical application in the hypothetical case if a Swedish bank enters the German market. Findings: The risk assessment of unsecured loans is a standardized process there scoring models make a crucial contribution. This case study shows how difficult that process is in the event of cross-border activities, for example, a bank enters a new market in a new country. Implications & Recommendations: Assessing applicants on a new market is challenging due to the effect of asymmetric information. The problem can be solved by information sharing and by using the experiences from the existing portfolio. Based on that the bank can create an appropriate scorecard. Contribution & Value Added: The paper contributes to existing literature on risk assessment by applying scoring models to the case of cross-border activities. Article type: base on in-depth analysis of literature review
Formation and Properties of Textile Biocomposites with PLA Matrix Reinforced with Flax and Flax/PLA Weft Knitted Fabrics

Eco-friendly textile biocomposites with PLA matrix reinforced with flax and flax/PLA weft knitted fabrics without any additional chemical treatment were prepared in this study. Five different kinds of samples were manufactured and investigated: (i) pure PLA sheet and (ii-v) PLA matrix reinforced with weft knits (ii) single jersey flax knit, (iii) single jersey flax/PLA knit, (iv) double single jersey flax knit, (v) double single jersey flax/PLA knit. Tensile and flexural properties of PLA biocomposites with weft knitted fabrics were higher than pure PLA sheet. The highest properties exhibit PLA biocomposites reinforced with single jersey flax knitted fabric. Differential scanning calorimetry (DSC) showed that crystallization rate of PLA matrix is enhanced with the presence of reinforced material - flax knit. It is possible to do an assumption that flax fibre can act as nucleating agents during the crystallization process.
A new large didelphid of the genus Thylophorops (Mammalia: Didelphimorphia: Didelphidae), from the late Tertiary of the Pampean Region (Argentina)

We describe Thylophorops lorenzinii sp. nov. (Marsupialia, Didelphidae), the largest known didelphid opossum, living or extinct. Its type specimen comes from Late Pliocene levels at Punta San Andres, southeastern Buenos Aires Province, Argentina. With an estimated body mass between 4.8 and 7.4 kg, it obviously surpasses that of the (up to now) largest didelphid, the living Didelphis virginiana Kerr. In addition to its larger size, the new species differs from T. chapalmalensis Ameghino and T. perplanus Ameghino in that its lower molars have more labially salient hypoconids and proportionally large hypoconulids which are not antero-posteriorly compressed.
Development of Pursuer-Distancer Movement Scale - Short Form (PDMS-SF)

The Pursuer-Distancer Movement Scale (PDMS) (Chabot, 1996) is a reliable and valid 36-item self-report measure of the interpersonal process between individuals in a committed relationship. Chabot and Liu (2015) employed principal component analysis to identify the components of the PDMS. Their results supported the 18item pursuer subscale with five components and the 18-item distancer subscale with six components. The current study employed exploratory factor analysis on the PDMS items from 206 young adults in a serious relationship for at least one year. The study had two goals: to refine the dimensions of the pursuer and distancer subscales and to develop a short form of the measure. Results yielded the Pursuer-Distancer Movement Scale Short Form (PDMS-SF). The pursuer subscale of the PDMS-SF had eight items reflecting two factors (communicationconnectedness and change-flexibility). The distancer subscale of the PDMS-SF had nine items reflecting two factors (autonomous-connectedness and methodical-constancy). Results are discussed in the context of pursuerdistancer clinical literature and demand-withdraw research literature.