Water masses drive the spatial and temporal distribution of marine Archaea in the northern Antarctic Peninsula.

The Southern Ocean influences the planet's biogeochemical cycles. Marine microorganisms are important in this scenario, being the main biological agents in the cycling of many elements. The Archaea domain is widely distributed in the oceans, and its presence in Antarctica is acknowledged.

FACEmemory, an Innovative Self-Administered Online Memory Assessment Tool.

: Alzheimer's disease (AD) dementia and mild cognitive impairment (MCI) are currently underdiagnosed in the community, and early detection of cognitive deficits is crucial for timely intervention. FACEmemory, the first completely self-administered online memory test with voice recognition, has been launched as an accessible tool to detect such deficits. This study aims to investigate the neuropsychological associations between FACEmemory subscores and cognitive composites derived from traditional paper-and-pencil neuropsychological tests and to develop an optimal algorithm using FACEmemory data and demographics to discriminate cognitively healthy (CH) individuals from those with MCI.

Changes in choroidal thickness quantified by Optical Coherence Tomography across cognitive impairment: data from the NORFACE cohort.

Background: Optical coherence tomography (OCT) enables high-resolution imaging of ocular structures in health and disease. Choroid thickness (CT) is a key vascular retinal parameter that can be assessed by OCT and might be relevant in the evaluation of the vascular component of cognitive decline. We aimed to investigate CT changes in a large cohort of individuals cognitive unimpaired (CU), with mild cognitive impairment due to Alzheimer's (MCI-AD), mild cognitive impairment due to cerebrovascular disease (MCI-Va), Alzheimer's disease dementia (ADD), and vascular dementia (VaD).

Field Notes from the Border: Lessons Learned in Conducting Mental Health Research Involving Newly Arrived Latinx Immigrants as Study Participants.

In this paper, we describe a research protocol for surveying and interviewing Latinx immigrants recently arrived at the US southern border, and we raise important and unique issues that need to be considered with this population. The main objective is to share experiences, challenges, opportunities, and essential considerations (which we call lessons learned) that researchers should take into account when working with this vulnerable study population. The six lessons learned focus on: (1) fostering relationships with community partners; (2) participant consent and compensation; (3) linguistic and cultural fluency of researchers; (4) adapting data collection procedures to the environment and conditions; (5) establishing trust with participants and being trustworthy; and (6) addressing the ethical considerations of research with immigrant populations and the positionality of researchers.