697 research outputs found
Novel Rubidium Poly-Nitrogen Materials at High Pressure
First-principles crystal structure search is performed to predict novel
rubidium poly-nitrogen materials at high pressure by varying the stoichiometry,
i. e. relative quantities of the constituent rubidium and nitrogen atoms. Three
compounds of high nitrogen content, RbN_{5}, RbN_{2}, and Rb_{4}N_{6}, are
discovered. Rubidium pentazolate (RbN5) becomes thermodynamically stable at
pressures above \unit[30]{GPa}. The charge transfer from Rb to N atoms enables
aromaticity in cyclo-N_{^{_{5}}}^{-} while increasing the ionic bonding in the
crystal. Rubidium pentazolate can be synthesized by compressing rubidium azide
(RbN3) and nitrogen (N2) precursors above \unit[9.42]{GPa}, and its
experimental discovery is aided by calculating the Raman spectrum and
identifying the features attributed to N_{^{_{5}}}^{-} modes. The two other
interesting compounds, RbN2 containing infinitely-long single-bonded nitrogen
chains, and Rb_{4}N_{6} consisting of single-bonded N_{6} hexazine rings,
become thermodynamically stable at pressures exceeding \unit[60]{GPa}. In
addition to the compounds with high nitrogen content, Rb_{3}N_{3}, a new
compound with 1:1 RbN stoichiometry containing bent N_{3} azides is found to
exist at high pressures
Nested Radar Systems for Remote Coastal Observations
Advances in radar technology now allow the observation of sea surface features at multiple scales, from kilometers,
down to metres. In the same manner that nested models are used at different resolutions, nested radars of different
frequencies can be used to provide data on sea surface features at various resolutions. A new radar system in the
millimeter wave-band has now been demonstrated with a resolution of <1m. This MMW-radar was deployed in a
nested configuration with an X-band marine radar from a beach near Faro in Portugal. The results from the two
systems show how the MMW-radar can image fine detail surf zone and swash processes to a range of O(200m),
while the marine radar provides lower resolution images of O(10m) to longer ranges of O(2km). Data from the two
nested radars are shown from a recent deployment on a barrier beach in the Ria Formosa region of the Algarve,
Portugal. The data from these nested radars are analysed to map wavelengths in 2-D and a non-linear bathymetric
inversion is used on both sets of data to estimate the bathymetry of the imaged area. Comparisons with in-situ
surveys demonstrate the accuracy of this technique
Interview with Dr. Brad Williams - VP for Student Affairs
Nova University, Student Affairs, Dan Sullivan, Mailman Hollywood Building, Rosenthal Student’s Center, campus life, student recreation center, Taft Center, Miami Dolphins, Tom Vitucci, George Hanbury, Ray Ferrero, Abe Fischler, Founders, Farquhar, and Vettel Hall, dorms, volleyball, intramural rec program, flag football, basketball, golf, football, baseball, NCAA Division II, Division of Student Affairs, Ovid Lewis, Stephen Feldman, Health Professions, student government, Student aid, Frank DePiano, graduate dorm, shuttle, Rolling Hills Graduate Hall, RAs, Broward County Library, art museum, John Santulli, Tony DeNapoli, international studies, international study abroad, Goodwin Hall, Hurricane Andrew, Hurricane Wilma, Computer Piya, Lab, SharkFINS, fraternities and sororities, Greek system, students, shark statue, Guy Harvey, School of Oceanography, radio station, Scott Chitoff, Annual Leadership Conference Getawayhttps://nsuworks.nova.edu/nsudigital_oralhistories/1023/thumbnail.jp
Integrating NoSQL in the Classroom
With the increasing popularity of big data, more and more organizations are turning to NoSQL databases as their preferred system for handling the unique demands of capturing and storing massive amounts of data. The likelihood that employees in all sizes of organizations will encounter NoSQL databases is growing every year. College students need to be exposed to this technology and begin to have a functional understanding of how it works and how to use it. This paper offers a teaching case for college instructors to integrate NoSQL into their existing database courses
MF2334
Paul D. Ohlenbush, James W. Kunkel & Brad Williams, Prescribed burning programs, Kansas State University, April 1998
Course-Integrated information literacy instruction in introduction to accounting
Two groups of students, enrolled in Introduction to Accounting, volunteered to participate in a pedagogical study to assess course-integrated information literacy instruction. Only one group had received information literacy instruction in an earlier business course. Academic librarians provided three instruction sessions, and students completed a semester-long case to evaluate a company as a potential investment. The results suggest that information literacy skills can be learned for application in subsequent coursework. This research also provides some evidence of significantly greater improvement in information literacy and significantly higher perceptions of course-integrated instruction benefits by students who had not received the previous instruction
MF2429
Elaine Johannes, Jana Jones & Brad Williams, OPEN-K opportunities for prevention education and networking in Kansas, Kansas State University, August 1999
Maximizing your Personal Virtual Presence
Drawing upon recent research, this article offers practical advice on two key elements of working in virtual settings: managing your digital profile and learning to focus at a distance. The first offers insights on how to create and reinforce a trustworthy identity with people who do not know you well. The second examines how you can overcome barriers to effective collaboration with physically distant others. Both elements attempt to overcome the challenges of being known and present to others in a digital age
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