Results 111 to 120 of about 1,077,149 (188)

Rapid Translation of the Early Coding Region Promotes Premature Transcription Termination, Reducing Protein Expression in Escherichia coli

open access: yesMolecular Microbiology, EarlyView.
A run of consecutive fast‐translated codons (right) within the first 30 codons of lacZ (top) causes loss of the downstream transcript at positions coinciding with previously mapped intragenic Rho‐dependent termination sites (middle), and a corresponding loss of β‐galactosidase activity (bottom).
Steen Pedersen   +5 more
wiley   +1 more source

Thermohydrodynamic Modeling of Two Axial Groove Journal Bearings Under Different Lubrication Conditions

open access: yesInternational Journal of Rotating Machinery
Cylindrical hydrodynamic bearings are essential components of rotating machines used in applications ranging from small motors to large turbo generators.
Ely Q. Gomes   +4 more
doaj   +1 more source

Maximum Likelihood Turbo Iterative Channel Estimation for Space-Time Coded Systems and Its Application to Radio Transmission in Subway Tunnels

open access: yesEURASIP Journal on Advances in Signal Processing, 2004
This paper presents a novel channel estimation technique for space-time coded (STC) systems. It is based on applying the maximum likelihood (ML) principle not only over a known pilot sequence but also over the unknown symbols in a data frame.
González-López Miguel   +2 more
doaj   +1 more source

Eco‐Epidemiological Study of Seropositivity Against Rickettsia and Leptospira Agents in Rural Areas of Urabá, Colombia

open access: yesTropical Medicine &International Health, EarlyView.
ABSTRACT Introduction Rickettsioses and leptospirosis are infectious diseases often underdiagnosed due to limited knowledge about their epidemiology, pathophysiology, and clinical aspects. Objectives To characterize the seroprevalence and seroincidence of Rickettsia and Leptospira agents and determine their associated factors in rural areas of Urabá ...
Mariana Torres‐Bustamante   +4 more
wiley   +1 more source

Glucocorticoids modulate drug transporter function in human fetal brain endothelial cells

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend P‐glycoprotein and breast cancer resistance protein are the most prominent drug transporters at the fetal blood–brain barrier. We isolated primary human fetal brain endothelial cells from early and mid‐gestation cerebral microvessels and exposed them to glucocorticoids cortisol and dexamethasone in vitro.
Nikola Ivanovski   +3 more
wiley   +1 more source

Scaling temporal resolution from mice to humans: Challenges and innovations in preclinical imaging of translational models

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend Temporal scaling physiology differs significantly between mice and humans. Mice have higher metabolism, heart and respiratory rate, as well as faster blood flow rates, brain activity and physiological dynamics over time. These differences influence the temporal resolution needed in preclinical imaging of mouse models to ...
Sara Gargiulo, Matteo Gramanzini
wiley   +1 more source

Iterative Vector Tracking of Turbo- or LDPC- Coded High-level Constellations on a Nonlinear Satellite Channel

open access: yes, 2003
Interactive multimedia wideband satellite services will require the adoption of Turbo or Low-Density Parity-Check (LDPC) coded spectrally-efficient high-level modulation techniques in future satellite transmission standards.
GIUGNO L   +2 more
core  

The Performance of H263-Based Video Telephony over Turbo-Equalized GSM/GPRS

open access: yes, 2002
The performance of turbo-equalized Global System of Mobile Communications/General Packet Radio Service (GSM/GPRS)-like videophone transceivers is studied over dispersive fading channels as a function of the number of turbo equalization iterations ...
Yeap, B.L., Cherriman, P.J., Hanzo, L.
core   +1 more source

Biomechanical, Structural, and Composition Characterization of the Vertebra‐Disc Interface

open access: yesJOR SPINE, Volume 9, Issue 4, December 2026.
ABSTRACT Background The spinal endplate region consists of the cartilage endplate (CEP), bony endplate (BEP), and subchondral trabecular bone (STB). Although this region is often involved in vertebral fractures and disrupted with disc degeneration, the biomechanics of these tissues are incompletely understood. The goal of this study was to characterize
Neilesh R. Frings   +5 more
wiley   +1 more source

Glial Dysfunction and Memory Impairments in a Model of Pediatric Obstructive Sleep Apnea

open access: yesGlia, Volume 74, Issue 11, November 2026.
Generation and analysis of an snRNA‐seq atlas of the hippocampus in POSA. Validation of reduced protein expression of six genes across four cell types. Cellular‐level investigation of aberrant glial function in POSA using transgenic reporter mice. ABSTRACT Pediatric obstructive sleep apnea (POSA) is a common childhood disease that often causes aberrant
Michael R. Williamson   +13 more
wiley   +1 more source

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