Recovery Residences Are an Innovative Site for HIV Prevention Interventions Targeting People Who Inject Drugs: Preliminary Data From Project HOMES.

Of 1.2 million Americans who would benefit from pre-exposure prophylaxis (PrEP), only 36% were prescribed PrEP in 2023. Project HOMES is an ongoing study that evaluates recovery residences for individuals in medication-assisted recovery from opioid use disorder across five Texas cities.

Interorganisational emergency management coordination challenges in a resource-scarce environment: a case study of El Salvador post COVID-19.

The COVID-19 (coronavirus disease 2019) pandemic pinpointed the vulnerability of nations to disasters regardless of their relative level of development. The coordination of their emergency management response organisations was seen as extremely important in not only dealing with the global health emergency, but also with respect to natural hazards and public health threats in the future. Coming to these conclusions and working to enhance a country's coordination of emergency management actors are, however, two very different things.

Field-Induced Antiferromagnetic Correlations in a Nanopatterned Van der Waals Ferromagnet: A Potential Artificial Spin Ice.

Nano-patterned magnetic materials have opened new venues for the investigation of strongly correlated phenomena including artificial spin-ice systems, geometric frustration, and magnetic monopoles, for technologically important applications such as reconfigurable ferromagnetism. With the advent of atomically thin 2D van der Waals (vdW) magnets, a pertinent question is whether such compounds could make their way into this realm where interactions can be tailored so that unconventional states of matter can be assessed. Here, it is shown that square islands of CrGeTe vdW ferromagnets distributed in a grid manifest antiferromagnetic correlations, essential to enable frustration resulting in an artificial spin-ice.

EphA4 mediates ephrinB1-dependent adhesion in retinal ganglion cells.

Eph/ephrin signaling is crucial for organizing retinotopic maps in vertebrates. Unlike other EphAs, which are expressed in the embryonic ventral retina, EphA4 is found in the retinal ganglion cell (RGC) layer at perinatal stages, and its role in mammalian visual system development remains unclear. Using classic stripe assays, we demonstrate that, while RGC axons are repelled by ephrinB2, they grow on ephrinB1 stripes through EphA4-mediated adhesion.

Gestational hypoxia elicits long-term cardiovascular dysfunction in female guinea pigs.

Background: Gestational hypoxia (GH) has been implicated in the developmental programming of cardiovascular diseases (CVDs) in the offspring, with most studies focusing on males, conversely, the effects on female cardiovascular health remain understudied. We aimed to investigate the impact of GH on the cardiovascular system of female guinea pig offspring from the early postnatal period to adulthood.

Methods: Pregnant guinea pigs were subjected to normoxic or hypoxic conditions from gestational day 30 until delivery (∼70 days).