Hadeel Elayan

Learn More
Adrenaline (A) is synthesized in the adrenal medullae by the enzyme phenylethanolamine-N-methyltransferase (PNMT). After surgical removal of the adrenal medullae tissue A levels ranged from 22% of control in the heart to 125% of control in the liver. Use of a novel assay to measure tissue A formation revealed that many tissues can synthesize A using PNMT(More)
Embedding a sparse penalty in conventional Least Mean Square (LMS) adaptive algorithms is an established strategy to enhance the performance and robustness against noise in the estimation of sparse plants, such as wireless mul-tipath channels. In this paper we review the most prominent NLMS-based algorithms with &#x2113;<sub>p</sub>-norm constraint,(More)
In order to exploit the inherent sparsity of an OFDM multipath wireless channel, this paper presents a novel estimation technique based on the &#x2113;1-LS criterion that relies on the selection of the optimal regularization parameter. This term is proven in the paper to be intimately related to the Signal to Noise Ratio (SNR) and Sparsity Degree (&#x03C1;)(More)
The emerging in vivo communication and networking system is a prospective component in advancing health care delivery and empowering the development of new applications and services. In vivo communications construct wirelessly networked cyber-physical systems of embedded devices to allow rapid, correct and cost-effective responses under various conditions.(More)
This paper presents a framework for the undergraduate research experience that Electrical and Computer Engineering (ECE) Senior Undergraduate students at Khalifa University, UAE pursue through a fourth-year technical elective course entitled Independent Study that is one-semester long. This course is an excellent example of self-directed learning as one of(More)
Wireless communication among implanted nanobiosensors will enable transformative smart health monitoring and diagnosis systems. The state of the art of nano-electronics and nano-photonics points to the Terahertz (THz) band (0.1-10 THz) and the optical frequency bands (infrared, 30-400 THz, and visible, 400-750 THz) as the frequency range for communication(More)
This paper presents a technique for enhanced localization of moving nodes in Wireless Sensor Networks (WSNs). The proposed technique is based on the use of Time Difference of Arrival (TDOA) along with Particle Filter (PF) method which is demonstrated to be capable of accurate detection since each particle in the PF represents a state which translates into(More)
Nanosized devices operating inside the human body open up new prospects in the healthcare domain. Invivo wireless nanosensor networks (iWNSNs) will result in a plethora of applications ranging from intrabody health-monitoring to drug-delivery systems. With the development of miniature plasmonic signal sources, antennas, and detectors, wireless(More)
Nanotechnology refers to the design, production and application of structures, devices or systems at the incredibly small scale of atoms and molecules-the &#x0022;nanoscale&#x0022;. As a result, this technology has the potential to remarkably affect the development of the healthcare sector by revolutionizing both the diagnostic and therapeutic approach of(More)
Homogenates of rat skin N-methylated norepinephrine to form epinephrine. In the brain and adrenal medulla the enzyme phenylethanolamine-N-methyltransferase synthesizes epinephrine, but the skin epinephrine forming enzyme was an N-methyltransferase distinct from phenylethanolamine-N-methyltransferase. Skin N-methyltransferase was not inhibited by the(More)