Publications by authors named "M L Alvarez"

Background: With the increase in life expectancy and the rising prevalence of Alzheimer's Disease (AD), the integration of biomarkers for early diagnosis is crucial. The Mayo Preclinical Alzheimer's Cognitive Composite (Mayo-PACC), encompassing the Rey-Auditory Verbal Learning Test (RAVLT), Trail Making Test - B (TMT B), and semantic fluency, is designed to detect cognitive changes in preclinical AD. This study investigates gender-based differences in the predictive efficacy of Mayo-PACC for AD biomarkers following the ATN (Amyloid, Tau, Neurodegeneration) criteria.

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This paper reports the design of a biosensor for sensitive, low-cost measurement of lead in drinking water. The biosensor uses a genetically-modified strain of Escherichia coli, which serves as both signal amplifier and reporter of lead in water, measured via colour change. We developed the PlomBOX measurement platform to image this colour change and we demonstrate its capability to detect concentrations as low as the World Health Organisation upper limit for drinking water of 10 ppb.

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Sound-based uroflowmetry (SU) offers a non-invasive alternative to traditional uroflowmetry (UF) for evaluating lower urinary tract dysfunctions, enabling home-based testing and reducing the need for clinic visits. This study compares SU and UF in estimating urine flow rate and voided volume in 50 male volunteers (aged 18-60), with UF results from a Minze uroflowmeter as the reference standard. Audio signals recorded during voiding were segmented and machine learning algorithms (gradient boosting, random forest, and support vector machine) estimated flow parameters from three devices: Ultramic384k, Mi A1 smartphone, and Oppo smartwatch.

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Objective: To evaluate the effects of presurgical infant orthopaedics using the Modified Grayson technique and Rhinoplasty Appliance System on the maxillary alveolus and nasolabial region in infants with unilateral cleft lip and palate (UCLP).

Materials And Methods: This prospective study looked at 26 patients with a mean age of 6.3 ± 1.

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