Results 51 to 60 of about 1,189 (168)

Prevalence and Etiology of Diarrhea in Children Under 5 Years Old at the Ngaoundere Regional Hospital, Cameroon: A Cross‐Sectional Study

open access: yesHealth Science Reports, Volume 8, Issue 10, October 2025.
ABSTRACT Background and Aims Diarrhea is a worldwide public health problem in children under 5 years old. This study aimed to determine the main etiology of diarrhea affecting children under 5 years old at the Ngaoundere Regional Hospital. Methods The present study was a cross‐sectional survey of patients under 5 years of age with diarrhea which was ...
Michel Archange Fokam Tagne   +6 more
wiley   +1 more source

Heavy‐element damage seeding in proteins under XFEL illumination

open access: yesJournal of Synchrotron Radiation, Volume 32, Issue 5, Page 1124-1142, September 2025.
Plasma simulations with detailed modeling of unbound electron dynamics predict that heavy elements contribute significantly to radiation damage suffered by proteins in serial femtosecond crystallography. New methods to mitigate radiation damage in this regime are highlighted.Serial femtosecond X‐ray crystallography (SFX) captures the structure and ...
Spencer K. Passmore   +3 more
wiley   +1 more source

Design, Modeling and Synthesis of Negative Group Delay IL-Shape Topology

open access: yesIEEE Access, 2019
This paper introduces a negative group delay (NGD) theory of passive topology presenting “IL”-shape geometry. The two-port topology is comprised of a coupled line with an open- and stub-loaded terminations.
Blaise Ravelo   +3 more
doaj   +1 more source

The Comprehensive Roadmap Toward Malaria Elimination Using Graphene and its Promising 2D Analogs

open access: yesAdvanced NanoBiomed Research, Volume 5, Issue 8, August 2025.
Material based on a diversity of graphene with chemical properties of strong strength, high mobility, high transparency, good heat conductivity, biocompatibility, and chemical stability, advanced devices demonstrating antimalarial characteristics can be used for malaria treatment at different stages of malaria development from the injection of ...
Fangzhou He   +11 more
wiley   +1 more source

Bandpass Negative Group Delay Theory of Fully Capacitive Δ-Network

open access: yesIEEE Access, 2021
A particularly original negative group delay (NGD) theory of $\Delta $ -topology is developed in the present paper. The NGD three-port topology is a passive circuit purely constituted by capacitors network. The model of the proposed $\Delta $ -topology
Fayu Wan   +8 more
doaj   +1 more source

KLVFF Functionalized Graphene Oxide for Aβ42 Peptide Electrical Detection: A Promising Nanomaterial for the Development of Alzheimer's Disease Diagnostic Devices

open access: yesSmall, Volume 21, Issue 32, August 14, 2025.
An electrical transduction sensor (GO@peg4‐KLVFF) deposited by DEP, based on graphene oxide, suitably functionalized for the detection of Aβ42, one of the main Alzheimer's disease biomarkers is proposed. The detection activity is established on the measurement of the electrical resistance change induced by the specific interaction occurring between the
Viviana Scuderi   +10 more
wiley   +1 more source

Parametric Geometrical Study of OOO-Microstrip Circuit with Dual-Band Bandpass NGD Behavior [PDF]

open access: yesRadioengineering, 2021
This paper introduces a bandpass (BP) NGD circuit design engineering. The developed circuit is de¬signed and implemented using distributed microstrip tech-nology and operates with outstanding dual-band bandpass NGD performance added with low attenuation.
R. Yang   +4 more
doaj  

Either Or: Interactive Articles or Videos for Climate Science Communication

open access: yesComputer Graphics Forum, Volume 44, Issue 3, June 2025.
Abstract Effective communication of climate science is critical as climate‐related disasters become more frequent and severe. Translating complex information, such as uncertainties in climate model predictions, into formats accessible to diverse audiences is key to informed decision‐making and public engagement.
J. Poehls   +3 more
wiley   +1 more source

Novel Digital NGD Methodology for FPGA-Based Embedded Systems

open access: yesIEEE Access
Negative Group Delay (NGD) is a concept not widely explored in embedded digital signal processing systems, and this study aims to fill this gap. It presents a novel methodology for implementing NGD using second-order Finite Impulse Response (FIR) filter.
Rivo Randriatsiferana   +3 more
doaj   +1 more source

Frequency-Selective Surface Based on Negative-Group-Delay Bismuth–Mica Medium

open access: yesPhotonics, 2023
Negative group delay may be observed in dispersive media with anomalous dispersion in a certain frequency range. The fact that an outgoing wave packet precedes an incoming one does not violate the causality principle but is only a consequence of a ...
Anton D. Zaitsev   +4 more
doaj   +1 more source

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