ScholarWorks@UMBC: Recent submissions
Now showing items 1-20 of 212
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Evaluating Disaster TIme-Line from Social Media with Wavelet Analysis
—For over a decade, social media has proved to be a functional and convenient data source in the Internet of things. Social platforms such as Facebook, Twitter, Instagram, and Reddit have their own styles and purposes. ... -
Turning the lens onto our own language: Engaging in critical reflexivity in the pursuit of social change
(Cambridge University Press, 2018-06)The question is a fair one. The concept of teacher resistance is now common lore among sociolinguists, who have heard about or who have experienced the rejection of well-intended efforts to bring linguistic knowledge to ... -
Classifying Eyes-Free Mobile Authentication Techniques
(Journal of Information Security and Applications (JISA), 2018-06)Mobile device users avoiding observational attacks and coping with situational impairments may employ techniques for eyes-free mobile unlock authentication, where a user enters his/her passcode without looking at the device. ... -
Impacts of Development Pattern on Urban Groundwater Flow Regime
(American Geophysical Unioon, 2018)We compare the effects of urban development type and spatial pattern on the hydrology of six small headwater catchments near Baltimore, Maryland utilizing a three-dimensional coupled groundwater-surface water-land atmosphere ... -
Persistent Reductions in the Bioavailability of PCBs at a Tidally Inundated Phragmites australis Marsh Amended with Activated Carbon
(Wiley, June 5, 20)In situ amendment of sediments with highly sorbent materials like activated carbon (AC) is an increasingly viable strategy to reduce the bioavailability of persistent, sediment‐associated contaminants to benthic communities. ... -
Engagement, enthusiasm, and empowerment: participatory learning in Special Collections instruction
(2018-06-22)Engagement, enthusiasm, and empowerment: participatory learning in Special Collections instruction Students less than enthused? Energize them with active learning, critical pedagogy, and reflective teaching! UMBC ... -
Firearm Detection Using Wrist Worn Tri-Axis Accelerometer Signals
Gunshot detection traditionally has been a task performed with acoustic signal processing. While this type of detection can give cities, civil services and training institutes a method to identify specific locations of ... -
Geomagnetically induced currents caused by interplanetary shocks with different impact angles and speeds
(AGU, 2018-05-15)The occurrence of geomagnetically induced currents (GICs) poses serious threats to modern technological infrastructure. Large GICs result from sharp variations of the geomagnetic field (dB/dt) caused by changes of large‐scale ... -
Positive site selection bias in meta-analyses comparing natural regeneration to active forest restoration
(AAAS, 2018)Several recent meta-analyses have aimed to determine whether natural regeneration is more effective at recovering tropical forests than active restoration (for example, tree planting). We reviewed this literature and found ... -
Stability of cnoidal wave frequency combs in microresonators
(OSA Publishing, 2018)We determine the regions in the parameter space of microresonators where cnoidal waves (Turing rolls) are stable. Solitons are included as a special limit. We identify conditions to efficiently obtain broadband frequency combs. -
Design and experimental results of the 1-T Bitter Electromagnet Testing Apparatus (BETA)
(AIP, 2018-05)The Bitter Electromagnet Testing Apparatus (BETA) is a 1-Tesla (T) technical prototype of the 10 T Adjustable Long Pulsed High-Field Apparatus. BETA’s final design specifications are highlighted in this paper which include ... -
Contemporary Issues in Group Learning in Undergraduate Science Classrooms: A Perspective from Student Engagement
(ASCB, 2018)As the use of collaborative-learning methods such as group work in science, technology, engineering, and mathematics classes has grown, so has the research into factors impacting effectiveness, the kinds of learning ... -
Tracking deforestation and tree plantation expansion in a Costa Rican biological corridor using a Landsat time series
(2012)We evaluated forest policies and programs to reestablish connectivity in a fragmented tropical landscape spanning approximately 2500 km2: the San Juan-La Selva Biological Corridor (SJLSBC) in northern Costa Rica. National ... -
How Do We Talk Ourselves Into These Things? Challenges with Adoption of Biometric Authentication for Expert and Non-Expert Users
(ACM, 2018)Biometric authentication offers promise for mobile security, but its adoption can be controversial, both from a usability and security perspective. We describe a preliminary study, comparing recollections of biometric ... -
Towards Supporting Mobile Device Users Facing Severely Constraining Situational Impairments
(ACM, 2018)A subset of “Situationally Induced Impairments and Disabilities” (SIID), termed “Severely Constraining Situational Impairments” (SCSI), was explored at the user task and motivational level, to better understand the challenges ... -
Kapton Polyimide-Based EEG Microelectrode Array and Interfaces for Mice Brainwave Recordings and Analysis
(SPIE, 2018)There is a rise in the study of functional connectivity among various cortical regions and investigations to uncover causal links between a stimulus and the corresponding neural dynamics through electrophysiological imaging ... -
Efficient methods for the estimation of the multinomial parameter for the two-trait group testing model
(2018)Estimation of a single Bernoulli parameter using pooled sampling is among the oldest problems in the group testing literature. To carry out such estimation, an array of efficient estimators have been introduced covering a ... -
Multimodal Data Fusion: An Overview of Methods, Challenges and Prospects
(IEEE, 2015)In various disciplines, information about the same phenomenon can be acquired from different types of detectors, at different conditions, in multiple experiments or subjects, among others. We use the term “modality” for ... -
Application of Graph Theory to Assess Static and Dynamic Brain Connectivity: Approaches for Building Brain Graphs
(IEEE, 2018)Abstract: Human brain connectivity is complex. Graph-theory-based analysis has become a powerful and popular approach for analyzing brain imaging data, largely because of its potential to quantitatively illuminate the ... -
PREDATOR PLAYBACK, FORAGING HEIGHT, AND PHYLOGENY AFFECT GAP CROSSING BEHAVIOR IN TROPICAL FOREST BIRDS
(Neotropical Ornithological Society, 2017)The effects of fragmented landscapes on tropical bird movements remain poorly understood, partly due to a dearth of experimental tests of gap crossing behavior. To learn more about the factors involved in gap crossing ...