This paper describes the conception of the current follower transconductance amplifier (CFTA) with electronically and linearly current tunable. The newly modified element is realized based on the use of transconductance cells (G(m)s) as core circuits. The advantage of this element is that the current transfer ratios (i(z)/i(p) and i(x)/i(z)) can be tuned electronically and linearly by adjusting external DC bias currents. The circuit is designed and analyzed in 0.35 μm TSMC CMOS technology. Simulation results for the circuit with ±1.25V supply voltages show that it consumes only 0.43 mw quiescent power with 70 MHz bandwidth. As an application example, a current-mode KHN biquad filter is designed and simulated.
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http://dx.doi.org/10.1155/2013/201565 | DOI Listing |
Influencers are content creators who post online about their lives and can amass a significant following. Influencers can be dangerous by negatively affecting their followers' body image and marketing products in a deceptive way. The limited academic writings which consider influencer regulation note an incongruency between influencer conduct and the corresponding regulatory system.
View Article and Find Full Text PDFBMC Public Health
January 2025
Department of Health Systems and Policy, Institute of Public Health, College of Medicine and Health Sciences, University of Gondar, Gondar, Ethiopia.
Background: Despite vaccination being the most cost-effective means to prevent disease and its adverse consequences, missing opportunities for vaccination remains a critical public health challenge. Many SSA countries still couldn't reach the target endorsed by the Global Vaccine Action Plan. Identifying contributing factors helps policymakers and planners to design potential interventions to avert missing opportunities for vaccination.
View Article and Find Full Text PDFSensors (Basel)
December 2024
Electrical Engineering Department, University of Sharjah, Sharjah P.O. Box 27272, United Arab Emirates.
This paper presents a comprehensive review of path planning in dynamic environments. This review covers the entire process, starting from obstacle detection techniques, through path-planning strategies, and also extending to formation control and communication styles. The review discusses the key trends, challenges, and gaps in current methods to emphasize the need for more efficient and robust algorithms that can handle complex and unpredictable dynamic environments.
View Article and Find Full Text PDFBreast cancer is a significant health challenge worldwide, and disproportionately affects women of African ancestry (AA) who experience higher mortality rates relative to other racial/ethnic groups. Several studies have pointed to biological factors that affect breast cancer outcomes. A recently discovered stromal cell population that expresses P ROCR, Z EB1 and P DGFRα (PZP cells) was found to be enriched in normal healthy breast tissue from AA donors, and only in tumor adjacent tissues from donors of European ancestry (EA).
View Article and Find Full Text PDFJ Appl Lab Med
January 2025
DKC Content, San Antonio, TX, United States.
Background: The clinical laboratory provides critical information by which medical decisions are made. However, few understand the effort and support required to deliver high-quality results. This has led to unfavorable federal legislation that threatens the ability of laboratorians to be innovative and advance the field.
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