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Teamwork has been identified as one of the essential professional skills for the 21st century. Business, industries, and corporates require their employees to work in teams on various projects. Therefore, it is crucial to introduce and train undergraduate students on teamwork skills. Working in teams is not easy as one needs to collaborate with people from diverse backgrounds, skillsets, and opinions. The disagreement among the team members may lead to conflict and chaos that jeopardizes the team's harmony. Therefore, just creating teams and assigning a group project is insufficient to help undergraduate students develop teamwork skills. Instructors need to help students become cognizant of their teamwork skills, such as conflict resolution, scrum values, and cultural self-awareness. In this research paper, we intend to understand the perception of students enrolled in a sophomore-level system's course regarding conflict resolution skills, scrum values, and cultural self-awareness. We also want to understand how the perception of these values is related to one another. In the light of this study, we want to answer the following research questions (1) How do students' reported conflict management skills relate to their reported scrum values? (2) How do students' cultural self-awareness relate to their conflict management skills? (3) How do students' cultural self-awareness relate to their reported scrum values? A course on system analysis and design followed a project-based cooperative learning approach. The students were required to work in teams and complete the course deliverables, including the final course project. The team projects followed a scrum approach that helped students identify the project requirements, perform modeling and develop a prototype. Since students worked on scrum- driven projects in a cooperative learning environment, the students were required to participate in a survey study that allowed the instructional team to develop an understanding of the students' perception of conflict management, scrum values, and cultural self-awareness. The responses of the students were analyzed using descriptive and inferential statistics. The results suggest that students found themselves competent in managing conflict, adhering to scrum values, and demonstrating a high-level cultural self-awareness. 

Teamwork has been identified as one of the essential professional skills for the 21st century. Business, industries, and corporates require their employees to work in teams on various projects. Therefore, it is crucial to introduce and train undergraduate students on teamwork skills. Working in teams is not easy as one needs to collaborate with people from diverse backgrounds, skillsets, and opinions. The disagreement among the team members may lead to conflict and chaos that jeopardizes the team's harmony. Therefore, just creating teams and assigning a group project is insufficient to help undergraduate students develop teamwork skills. Instructors need to help students become cognizant of their teamwork skills, such as conflict resolution, scrum values, and cultural self-awareness. In this research paper, we intend to understand the perception of students enrolled in a sophomore-level system's course regarding conflict resolution skills, scrum values, and cultural self-awareness. We also want to understand how the perception of these values is related to one another. In the light of this study, we want to answer the following research questions (1) How do students' reported conflict management skills relate to their reported scrum values? (2) How do students' cultural self-awareness relate to their conflict management skills? (3) How do students' cultural self-awareness relate to their reported scrum values? A course on system analysis and design followed a project-based cooperative learning approach. The students were required to work in teams and complete the course deliverables, including the final course project. The team projects followed a scrum approach that helped students identify the project requirements, perform modeling and develop a prototype. Since students worked on scrum- driven projects in a cooperative learning environment, the students were required to participate in a survey study that allowed the instructional team to develop an understanding of the students' perception of conflict management, scrum values, and cultural self-awareness. The responses of the students were analyzed using descriptive and inferential statistics. The results suggest that students found themselves competent in managing conflict, adhering to scrum values, and demonstrating a high-level cultural self-awareness. 

Scholarly digital libraries provide access to scientific publications and comprise useful resources for researchers who search for literature on specific subject areas. CiteSeerX is an example of such a digital library search engine that provides access to more than 10 million academic documents and has nearly one million users and three million hits per day. Artificial Intelligence (AI) technologies are used in many components of CiteSeerX including Web crawling, document ingestion, and metadata extraction. CiteSeerX also uses an unsupervised algorithm called noun phrase chunking (NP-Chunking) to extract keyphrases out of documents. However, often NP-Chunking extracts many unimportant noun phrases. In this paper, we investigate and contrast three supervised keyphrase extraction models to explore their deployment in CiteSeerX for extracting high quality keyphrases. To perform user evaluations on the keyphrases predicted by different models, we integrate a voting interface into CiteSeerX. We show the development and deployment of the keyphrase extraction models and the maintenance requirements. 

Multiphase suspensions are complex systems where microscopic interactions between suspended bubbles, particles, and liquids can significantly alter bulk behavior. Observing the internal mechanics of such suspensions can help constrain the dynamics of natural multiphase flows. To capture these internal processes at high speed and in three dimensions, we propose the use of Swept Confocally Aligned Planar Excitation (SCAPE) microscopy in analog experiments. This imaging technique, developed for neuroscience and biology, uses a sweeping light sheet to illuminate and image fluorophores within a sample. We performed experiments using water and various oils as the liquid phases, glass or PMMA particles for solids, and air or CO₂for gas, which we imaged at rates >50 volumes per second, over a volume size of ∼1 × 1 × 0.4 mm. We focused on three case studies: (1) bubble nucleation, growth, and rise in sparkling water, where we found that bubble detachment from angular PMMA particles left residual bubbles that also grew and detached, generating more bubbles compared to smooth particles; (2) flow of immiscible liquids (water droplets suspended in canola oil) in a porous matrix of PMMA beads, which highlighted the importance of pore and throat sizes on droplet velocities; and (3) injection of air bubbles into concentrated suspensions of glass beads or crushed PMMA particles in a refractive‐index‐matched liquid, which revealed particle motion and strong alterations of the bubble shape. We conclude that SCAPE microscopy is a powerful tool to study the dynamics of multiphase systems.

 

The very first use of the solar eclipse to study the ionosphere was done in 1912 at a wavelength of 5,500 meters. Since that time, multiple studies have been done at VLF and LF frequencies. Most of these studies were performed at a single receive site with a single transmit location during a single eclipse, thus making it very hard to compare data from separate collections. This paper addresses historical collection efforts, what has been learned about the sun’s influence upon the ionosphere, and the role of neutral corpuscular particles ionizing the ionosphere. Questions raised by the above will be addressed. A planned crowdsource effort will then be described that will attempt to address and answer questions raised by having multiple receivers all reporting on signals transmitted by the same VLF/LF stations. There are two approaches to the crowdsource collection. One approach uses the SuperSID network that is already reporting on changes in propagation of signals from VLF stations. The other approach uses a receiver and antenna based upon an instrumentation amplifier chip and a smart phone as a software defined radio. The later approach will be detailed. 

Exploring the effects of solar eclipses on radio wave propagation has been an active area of research since the first experiments conducted in 1912. In the first few decades of ionospheric physics, researchers started to explore the natural laboratory of the upper atmosphere. Solar eclipses offered a rare opportunity to undertake an active experiment. The results stimulated much scientific discussion. Early users of radio noticed that propagation was different during night and day. A solar eclipse provided the opportunity to study this day/night effect with much sharper boundaries than at sunrise and sunset, when gradual changes occur along with temperature changes in the atmosphere and variations in the sun angle. Plots of amplitude time series were hypothesized to indicate the recombination rates and reionization rates of the ionosphere during and after the eclipse, though not all time-amplitude plots showed the same curve shapes. A few studies used multiple receivers paired with one transmitter for one eclipse, with a 5:1 ratio as the upper bound. In these cases, the signal amplitude plots generated for data received from the five receive sites for one transmitter varied greatly in shape. Examination of very earliest results shows the difficulty in using a solar eclipse to study propagation; different researchers used different frequencies from different locations at different times. Solar eclipses have been used to study propagation at a range of radio frequencies. For example, the first study in 1912 used a receiver tuned to 5,500 meters, roughly 54.545 kHz. We now have data from solar eclipses at frequencies ranging from VLF through HF, from many different sites with many different eclipse effects. This data has greatly contributed to our understanding of the ionosphere. The solar eclipse over the United States on August 21, 2017 presents an opportunity to have many locations receiving from the same transmitters. Experiments will target VLF, LF, and HF using VLF/LF transmitters, NIST’s WWVB time station at 60 kHz, and hams using their HF frequency allocations. This effort involves Citizen Science, wideband software defined radios, and the use of the Reverse Beacon Network and WSPRnet to collect eclipse-related data. 

Exploring the effects of solar eclipses on radio wave propagation has been an active area of research since the first experiments conducted in 1912. In the first few decades of ionospheric physics, researchers started to explore the natural laboratory of the upper atmosphere. Solar eclipses offered a rare opportunity to undertake an active experiment. The results stimulated much scientific discussion. Early users of radio noticed that propagation was different during night and day. A solar eclipse provided the opportunity to study this day/night effect with much sharper boundaries than at sunrise and sunset, when gradual changes occur along with temperature changes in the atmosphere and variations in the sun angle. Plots of amplitude time series were hypothesized to indicate the recombination rates and reionization rates of the ionosphere during and after the eclipse, though not all time-amplitude plots showed the same curve shapes. A few studies used multiple receivers paired with one transmitter for one eclipse, with a 5:1 ratio as the upper bound. In these cases, the signal amplitude plots generated for data received from the five receive sites for one transmitter varied greatly in shape. Examination of very earliest results shows the difficulty in using a solar eclipse to study propagation; different researchers used different frequencies from different locations at different times. Solar eclipses have been used to study propagation at a range of radio frequencies. For example, the first study in 1912 used a receiver tuned to 5,500 meters, roughly 54.545 kHz. We now have data from solar eclipses at frequencies ranging from VLF through HF, from many different sites with many different eclipse effects. This data has greatly contributed to our understanding of the ionosphere. The solar eclipse over the United States on August 21, 2017 presents an opportunity to have many locations receiving from the same transmitters. Experiments will target VLF, LF, and HF using VLF/LF transmitters, NIST?s WWVB time station at 60 kHz, and hams using their HF frequency allocations. This effort involves Citizen Science, wideband software defined radios, and the use of the Reverse Beacon Network and WSPRnet to collect eclipse-related data.