The observed increase of superconducting transition temperature (T(c)) with the number of copper oxide planes continues in the four-[CuO(2)](-2) layer (single TI layer) oxide superconductor, which has been prepared with > 80% purity and was magnetically aligned for crystallographic identification. A master scaling curve is proposed, which ties together the T(c)'s of virtually all known Bi and Tl oxide superconductors, and shows that the Tl(Bi) layers play an essential role in the superconductivity. publication 350 of the Barnett Institute.

This paper presents evidence-based practice in required first-year engineering curriculum at Northeastern University. It will outline the motivation to redesign the curriculum, and include review of engineering education practice that inspired and directed the change, along with evidence and assessment of the effectiveness of the new approach. In 2012, after a comprehensive curriculum review by a faculty committee at Northeastern University, the firstyear engineering program decided to adopt the "cornerstone to capstone" curriculum design. The overarching goal of the cornerstone was the integration of design, programming, graphical communication, and engineering analysis through real world, hands-on design projects previously taught in two separate courses. This goal directly supports the interdisciplinary, student-centered approach recommended by the National Academy of Engineering's Educating the Engineer of 2020 report. 13Additional motivation for the cornerstone approach came from three areas; student feedback, the changing profile of first year students, and increased access to affordable technologies such as programmable microcontroller kits and 3D printing. Today's students are entering the university with more advanced placement credit and an increased level of experience with hands-on projects and technologies, such as electronics. This cohort of students are looking for more depth in exploring engineering and a sense of real world problems along with taking courses at an accelerated pace.First pilots of the cornerstone course included a 14-week, 400-minutes per week course. Several measures were reviewed to evaluate success of the cornerstone. In comparing course content artifacts from the previous courses to similar ones from cornerstone, the cornerstone students of similar entrance skills did as well as the previous students on tests, projects, quizzes and presentations. Cornerstone students also reported similar positive outcomes for learning in the new course compared to students in the traditional courses, and even reported how they couldn't imagine the courses not integrated. This paper will report on the motivations and lessons learned at Northeastern University in implementing a cornerstone approach. It will present evidence-based practice in required firstyear engineering curriculum at Northeastern University and will outline the motivation to redesign the curriculum. It will include review of engineering education practice that inspired and directed the change, along with evidence and assessment of the effectiveness of the new approach.

The crystalline anisotropy of YBa2 Cu3 O7−δ is found to have a significant effect in degrading critical current Jc . Pressed polycrystalline pellets of field-oriented grains have significantly higher Jc values (>5 times larger) than unoriented samples of the same material. Effects of annealing and metal doping are also discussed.

In the past decades, people are using more electricity in their daily life; therefore, it becomes crucial to research for methods to increase energy production, especially from day to day activities. Considering our average daily routine and using simple physics concepts, we have designed a method to harness energy from the movement of an elevator. In this paper, we describe a miniature model of an elevator and its shaft through 3D printing. We wrapped a copper wire around the structure and placed a stack of magnets in the elevator. On its downward movement, our project successfully generated current through the copper wire by electromagnetic induction and basic physics. We recorded the electric potential through our Sparkfun circuit and then used Matlab to analyze our results. Our primary goal was to prove that Faraday's theory could be applied to an elevator to produce electric potential, and our secondary goal was to optimize the electric potential generated by the process for the practical use. We hope that this model could either work in the real world or lay the groundwork for the next generation.

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