Image Theses and Dissertations Prior activity and forgetting after short-term retention Three groups of 16 Lehigh University students demonstrated that prior activity, which may be as short as four seconds, is a significant determinant in the forgetting process. View Item
Image Theses and Dissertations A comparison of trace decay and interference models under identical experimental conditions / View Item
Image Theses and Dissertations A temperature-dependent model for an AlInAs/GaInAs heterojunction bipolar transistor View Item
Image Theses and Dissertations An electrochemical capacitance-voltage technique for the determination of pseudomorphic high electron mobility transistor material parameters View Item
Image Theses and Dissertations Quantitative scanning microwave microscopy of a biological cell The electromagnetic properties of a live biological system are extremely important to many medical applications. While information about electromagnetic properties of tissues are available in the literature, little or no data are available for a single cell or subcellular structures. Microwave biological/cell detection has been demonstrated to be useful and promising in many medical applications due to its internal properties such as non-invasive, fast and label-free. View Item
Image Theses and Dissertations An investigation of visual, auditory, and bisensory compensatory tracking Previous investigations comparing visual with auditory compensatory tracking behavior have demonstrated the superiority of visual tracking when both the magnitude and the direction of error was continuously available to the subject. The present study re-examined the relative merits of auditory and visual compensatory tracking in one dimension. In addition, all-visual and bisensory compensatory tracking was studied in two-dimensions using continuous sine wave inputs which were either 0,90, or 180 degrees in phase. View Item
Image Theses and Dissertations Spontaneous alternation as a function of iti and maze position Twenty food deprived hooded rats received nine trials per day for a total of fourteen days on an elevated T-maze in a test for spontaneous alternation. Both goal boxes of the T-maze always contained a reward of one dextrose pellet. View Item
Image Theses and Dissertations Bootstrapping versus the student's t : the problems of Type I error and power View Item
Image Theses and Dissertations Chemical isolation of a female urinary chemosignal which elicits ultrasonic vocalizations in male mice (mus musculus) View Item
Image Theses and Dissertations Effects of injection current density and active layer doping and thickness on the spectral emission properties of high-speed 1.3 um InGaAsP surface emitting light emitting diodes View Item
Image Theses and Dissertations A comparison of Type I error rates for the Bootstrap Contrast with the t test and the Roburst Rank Order test for various sample sizes and variances View Item
Image Theses and Dissertations The effect of N layer doping level on the forward voltage of AlGaAs double-heterostructure light emitting diodes View Item
Image Theses and Dissertations Dielectric Spectroscopy of Biological Samples For the first time, the impedance spectrum of live Jurkat T-lymphocytes human cells was characterized in a single sweep spanning six decades of frequency from 9 kHz to 9 GHz. The ultrawide bandwidth bridged the traditional impedance spectroscopy at kilohertz to megahertz frequencies with the recently developed microwave dielectric spectroscopy, which can probe the cell interior without being hindered by the cell membrane. View Item
Image Theses and Dissertations The influence of type of deprivation, magnitude of reward, and weight loss on spontaneous alternation In an investigation of spontaneous alternation, 4 groups of albino rats received 2 consecutive trials per day in an E-maze during a 20 day experimental period. Each group consisted of 19 subjects. The subjects were placed on a food or water deprivation schedule and received either a large or a small reward. The results revealed that a large food reward produced more alternation than a small food reward; however, a large water reward produced laess alternation than a small water reward. View Item
Image Theses and Dissertations Development of a 1[mu]m GaAs metal-semiconductor field effect transistor fabrication process View Item
Image Theses and Dissertations CMOS Closed-loop Control of MEMS Varactors A closed-loop capacitance sensing and control mix-mode circuit with a dedicated sensor electrode and a proportional-integral controller was designed for MEMS varactors. The control was based on tuning the bias magnitude of the MEMS varactor according to t View Item
Image Theses and Dissertations Effects of runway length and delay of reward on the frustration effect The effects of delay on the frustration effect, as manipulated by varying runway one length and delay at the first goal box in a double runway apparatus, were investigated. A distinction between within-chain delay and total delay was made possible by this procedure. Also provided was a test of the frustration and response inhibition bypotheses, two explanations for the origin of the FE (frustration effect). View Item
Image Theses and Dissertations Wafer-scale Fabrication and Characterization of Recessed-channel PtSe2 MOSFETs with Low Contact Resistance and Improved Gate Control For the first time, wafer-scale fabrication of PtSe2 MOSFETs was demonstrated by photolithography. The on PtSe2 is grown by thermally assisted conversion (TAC) of Pt films under Se vapor at 400 °C. Taking advantage of the unique property of PtSe2 to transition from semiconductor to semimetal as its thickness increases beyond a few monolayers, channel recess was adapted for improving gate control while keeping the contact resistance as low as 0.008 Ω∙cm. The wafer-scale fabrication resulted in uniform device characteristics so that average vs. best results were reported, as well as RF vs. View Item
Image Theses and Dissertations The role of attention in the subjective experience and behavioral tolerance of cold-pressor pain View Item
Image Theses and Dissertations Magnitude of reward and type of deprivation as variables affecting the alternating behavior of rats Spontaneous alternation behavior in rats was investigated under conditions of low food deprivation or low water deprivation and large or small reward. View Item
Image Theses and Dissertations Applications of Scanning Microwave Microscopy on Nanoscale Imaging of Biological Samples and CMOS Interconnects In this work, we systematically studied and introduced both AFM-based and STM-based scanning microwave microscopy. CMOS interconnects, single dried cell and organelles like exosomes have been imaged with scanning microwave microscopy.The scanning microwave microscopy of CMOS interconnect aluminum lines both bare and buried under oxide has been achieved. In both cases, a spatial resolution of 190 +- 70 nm was achieved, which was comparable or better than what had been reported in the literature. View Item
Image Theses and Dissertations Design, Fabrication, Characterization and Modeling of CMOS-Compatible PtSe2 MOSFETs For the last 50 years, Si metal-oxide-semiconductor field-effect transistors (MOSFETs) have undergone tremendous development under the Moore's law. However, it has become more and more difficult to continue the scaling due to the limitation of Si quantum confinement when the gate length is less than 5 nm. Two-dimensional (2D) atomic-layered materials may replace Si in future-generation ultra-thin-body, low-power, and high-performance MOSFETs. However, for any 2D material to replace Si, it must not only have high mobility and sizable bandgap, but also be manufacturable. View Item
Image Theses and Dissertations The effect of circadian arousal on exploration and on alternation in the albino rat / View Item