1,381 research outputs found
Radiation data definitions and compilation for equipment qualification data bank
Dose definitions, physical properties, mechanical properties, electrical properties, and particle definitions are listed for insulators and dielectrics, elastomeric seals and gaskets, lubricants, adhesives, and coatings
Increasing Historically Underserved and Underrepresented Student Completion in STEM Pathways at a Hispanic-Serving Institution: An Action Research Study
There is a demand for accountability for higher education institutions to increase student completion, specifically for institutions that enroll many students from historically underserved and underrepresented populations (HUUP). Meanwhile, labor market analysis presents a demand for skilled and diverse workers in science, technology, engineering, and mathematics (STEM) fields. Hispanic-serving institutions (HSI) have an advantage when supporting student completion to meet this workforce demand. This inquiry employed participatory action research (PAR) through a partnership with an HSI in rural Washington State. Using transformative worldview as the theoretical framework, this study aimed to determine the influence of completion planning for STEM students who represent HUUP. Research participants were students in the institution’s mathematics, engineering, science achievement (MESA) program. Two research questions guided this study and centered on how Hispanic participants and their lived experiences may inform completion planning for students from HUUP. The researchers sought to understand to what extent the MESA program’s support services impact student participation at a rural institution. This study collected nonquantitative data through a two-phase approach consisting of a survey and focus groups. The data analysis determined two key themes related to the study’s research questions: student barriers to completion at entry and strategies to support completion. The study’s findings led to four program-specific recommendations and three implications for policy-making decisions for the community partner’s leadership and for other higher education leaders seeking to increase student completion for students from HUUP into STEM pathways
Expression of Interest: The Atmospheric Neutrino Neutron Interaction Experiment (ANNIE)
Neutron tagging in Gadolinium-doped water may play a significant role in
reducing backgrounds from atmospheric neutrinos in next generation proton-decay
searches using megaton-scale Water Cherenkov detectors. Similar techniques
might also be useful in the detection of supernova neutrinos. Accurate
determination of neutron tagging efficiencies will require a detailed
understanding of the number of neutrons produced by neutrino interactions in
water as a function of momentum transferred. We propose the Atmospheric
Neutrino Neutron Interaction Experiment (ANNIE), designed to measure the
neutron yield of atmospheric neutrino interactions in gadolinium-doped water.
An innovative aspect of the ANNIE design is the use of precision timing to
localize interaction vertices in the small fiducial volume of the detector. We
propose to achieve this by using early production of LAPPDs (Large Area
Picosecond Photodetectors). This experiment will be a first application of
these devices demonstrating their feasibility for Water Cherenkov neutrino
detectors.Comment: Submitted for the January 2014 Fermilab Physics Advisory Committee
meetin
Bostonia: The Boston University Alumni Magazine. Volume 10
Founded in 1900, Bostonia magazine is Boston University's main alumni publication, which covers alumni and student life, as well as university activities, events, and programs
Search for Neutrinoless Double-Beta Decay of Te with CUORE-0
We report the results of a search for neutrinoless double-beta decay in a
9.8~kgyr exposure of Te using a bolometric detector array,
CUORE-0. The characteristic detector energy resolution and background level in
the region of interest are FWHM and ~counts/(keVkgyr), respectively. The
median 90%~C.L. lower-limit sensitivity of the experiment is and surpasses the sensitivity of previous searches. We find
no evidence for neutrinoless double-beta decay of Te and place a
Bayesian lower bound on the decay half-life, ~ at 90%~C.L. Combining CUORE-0 data with the 19.75~kgyr
exposure of Te from the Cuoricino experiment we obtain at 90%~C.L.~(Bayesian), the most stringent
limit to date on this half-life. Using a range of nuclear matrix element
estimates we interpret this as a limit on the effective Majorana neutrino mass,
-- .Comment: 6 pages, 5 figures, updated version as published in PR
- …