Comparative Computational Study of Frequency Shifts and Infrared Intensity Changes in Model Binary Complexes with Red- and Blue-Shifting Hydrogen Bonds.

A computational study of X-H···Y binary hydrogen-bonded complexes was undertaken to examine the red- and blue-shifting behavior of three model X-H proton donors interacting with a series of Lewis bases: Y = NH, NCLi, NCH, NCF, CH, BF, CO, N and Ne. Two of these proton donors, FArH and FCH, have blue-shifting tendencies, while the third, FH, has red-shifting tendencies. A perturbation theory model for frequency shifts that was derived many years ago was employed to partition the predicted frequency shift into the sum of two components, one dependent on the second derivative of the interaction energy with respect to X-H displacement and the other dependent on the X-H bond length change in the binary complex.

Comparing integrative ventilatory and renal acid-base acclimatization in lowlanders and Tibetan highlanders during ascent to 4,300 m.

With over 14 million people living above 3,500 m, the study of acclimatization and adaptation to high altitude in human populations is of increasing importance, where exposure to high altitude (HA) imposes a blood oxygenation and acid-base challenge. A sustained and augmented hypoxic ventilatory response protects oxygenation through ventilatory acclimatization, but elicits hypocapnia and respiratory alkalosis. A subsequent renally mediated compensatory metabolic acidosis corrects pH toward baseline values, with a high degree of interindividual variability.

Geochemical exploration of rare earth element resources in highland karstic bauxite deposits in the Sierra de Bahoruco, Pedernales Province, Southwestern Dominican Republic.

This study investigates the geochemical characteristics of rare earth elements (REEs) in highland karstic bauxite deposits located in the Sierra de Bahoruco, Pedernales Province, Dominican Republic. These deposits, formed through intense weathering of volcanic material, represent a potentially valuable REE resource for the nation. Surface and subsurface soil samples were analyzed using portable X-ray fluorescence (pXRF) and a NixPro 2 color sensor validated with inductively coupled plasma optical emission spectrometry (ICP-OES).

Assessing health systems' capacities to provide post-abortion care: insights from seven low- and middle-income countries.

Background: Abortion-related complications significantly contribute to maternal morbidity and mortality globally. Post-abortion care (PAC) services are essential to safeguarding women's rights by substantially mitigating the health risks associated with abortions - a step which is fundamental to achieving reproductive and maternal health-related Sustainable Development Goals.

Methods: We conducted a secondary analysis of data from the nationally representative Service Provision Assessment (SPA) surveys conducted between 2015 and 2024 across three regions in seven low- and middle-income countries: Afghanistan, Bangladesh, Nepal, the Democratic Republic of Congo (DRC), Ethiopia, Senegal, and Haiti.

Treatment Analysis of Very Early and Early Onset Psychosis in the Youth Inpatient Setting.

Background: The United States Food and Drug Administration approved 6 atypical antipsychotics for pediatric treatment of schizophrenia. However, little has been published on the effectiveness of these medications in the acute treatment setting of adolescents with psychosis. Since the clinical uncertainty and poor prognosis proceeding the early onset of schizophrenia has a significant impact on a child's development, there is a critical need for evidence-based data on this population.

Mast cells and arteriogenesis: A systematic review.

Vascular occlusive diseases remain a major health burden worldwide, necessitating a deeper understanding of the adaptive responses that mitigate their impact. Arteriogenesis, the growth and remodeling of collateral vessels in response to arterial occlusion, is a vital defense mechanism that counteracts fluid shear stress-induced vascular stenosis or occlusion. While physical factors driving arteriogenesis have been extensively studied, the specific cellular mediators involved are poorly understood.

History of Health at Cayo Santiago-An Investigation of Environmental and Genetic Influences on the Skeletal Remains of the Introduced Rhesus Macaque (Macaca mulatta) Colony.

The Cayo Santiago rhesus macaque colony is a renowned primate population that has experienced significant natural and anthropogenic ecological variation in their 85-year history. Demographic and familial information is also tracked and collated for the majority of monkeys. Thus, the health history of rhesus macaques at Cayo Santiago should reflect the impacts of both environmental and genetic factors.

Identification of Potentially Novel Mycobacterium Spp. In Freshwater Ornamental Fish in Trinidad and Tobago.

Potentially zoonotic Mycobacterium spp. are impacting freshwater ornamental fish in Trinidad and Tobago. Clinical cases presented at the Aquatic Animal Health Unit of The University of the West Indies, School of Veterinary Medicine, from September 2011 to September 2018 indicated the presence of piscine mycobacteriosis in freshwater ornamental fish from locations throughout Trinidad and Tobago.

Gestational gigantomastia with pseudoangiomatous stromal hyperplasia - a case report of rare entities.

Gestational gigantomastia (GG) is a rare and severe clinical complication of pregnancy. It is characterized by dramatic and uncontrolled growth of the breasts, often leading to physical discomfort, psychological distress and significant surgical complications. Its pathophysiology is poorly understood; management options include conservative pharmacological and surgical interventions.

Association between self-reported and proxy informant Health Quality of life of older adults with the use of antipsychotic drugs in nursing homes. A cross-sectional study.

Introduction: Antipsychotic prescriptions are frequent in nursing homes due to the challenging management of symptoms associated with Alzheimer's disease and related neurodegenerative disorders. This study aimed to assess the association between Health-related Quality Of Life (HrQOL) and antipsychotic use in nursing homes.

Methods: This is a cross-sectional study of the KASEHPAD (Karukera Study of Ageing in Nursing Homes) study conducted in six nursing homes in Guadeloupe and Martinique (French West Indies).

Interconnected pathways link faecal microbiota plasma lipids and brain activity to childhood malnutrition related cognition.

Malnutrition affects over 30 million children annually and has profound immediate and enduring repercussions. Survivors often suffer lasting neurocognitive consequences that impact academic performance and socioeconomic outcomes. Mechanistic understanding of the emergence of these consequences is poorly understood.

A closer look: factors impacting HIV durable viral suppression among a cohort of clinic attendees in Trinidad & Tobago.

Background: In Trinidad and Tobago, high HIV prevalence among key populations necessitates studying factors that impact durable viral suppression (DVS), crucial for effective HIV management and reducing transmission among at-risk networks. This study investigates these factors using clinical data from a major HIV care clinic in the Caribbean.

Methods: A retrospective analysis of 533 adult people with HIV (people) at MRFTT from 2017 to 2021 assessed the proportion achieving DVS, defined as a sustained viral load <200 copies/ml over one year.

The Intersection of Heart Failure and Iron Deficiency Anemia: Diagnostic and Therapeutic Approaches.

Iron deficiency anemia (IDA) is highly prevalent among individuals with heart failure (HF), impacting 40-70% of patients and serving as a significant prognostic indicator. Linked with oxidative metabolism and myocardial cell damage, IDA exacerbates HF symptoms, including reduced exercise capacity, diminished quality of life, and heightened cardiovascular morbidity. This review explores the diagnosis, treatment, clinical outcomes, prognostic indicators, and forthcoming challenges associated with IDA in HF patients.

Genomic data reveal that the Cuban blue-headed quail-dove () is a biogeographic relict.

Islands are well known for their unique biodiversity and significance in evolutionary and ecological studies. Nevertheless, the extinction of island species accounts for most human-caused extinctions in recent time scales, which have accelerated in recent centuries. Pigeons and doves (Columbidae) are noteworthy for the high number of island endemics, as well as for the risks those species have faced since human arrival.

Sargassum Inundations and the Risk of Hypertension Disorders Among Pregnant Women Living in the French Caribbean Island of Martinique.

Since 2011, Caribbean territories have experienced massive and repeated sargassum seaweed inundations. Once on shore, sargassum degradation through anaerobic metabolism elicits the release of many noxious molecules, including hydrogen sulfide (HS) and ammonia (NH). HS has been long recognized as a malodorous and highly toxic gas, while chronic exposure has not been extensively explored.

Understanding Mental Health Impact of COVID-19 on Puerto Rican Youth: Influence of Parental Stress.

The COVID-19 pandemic disrupted all areas of society. The socioemotional effects of isolation, financial instability, and educational and employment uncertainty are anticipated to have a ripple effect on the mental health of parents and children, which has not yet been studied in the Puerto Rican context. To examine the impact of COVID-19 on Puerto Rican families, we used a cross-sectional, correlational research design that studied the following: (a) Adverse experiences (AE) related to the COVID-19 pandemic reported by parents; (b) Parental stress; (c) Parental psychopathology: (d) The mental health of their children.

Bilateral avascular necrosis leading to hip fracture in pregnancy: A case report.

Avascular necrosis (AVN) of the hip, a rare cause of pelvic pain in the third trimester of pregnancy, often presents with nonspecific symptoms that resemble common musculoskeletal conditions. This ambiguity, coupled with concerns about the safety of magnetic resonance imaging (MRI) during pregnancy, can hinder timely diagnosis. We report a unique case of a 32-year-old primigravida diagnosed with a hip fracture and bilateral AVN of the femoral head in the immediate postpartum period, a complication seemingly not previously documented in pregnant patients.

A feasibility trial of an early childhood, violence prevention, parenting program integrated into early childhood educational provision in Jamaica: A study protocol.

Violence against children is a global public health issue that can lead to long-lasting negative consequences for child outcomes. The Irie Homes Toolbox (IHT) is an early childhood, violence prevention, parenting program designed for integration into early childhood educational services in Jamaica. We have previously shown that the program is effective in reducing child maltreatment when implemented by the research team.

Evolving Treatment Strategies for Systemic Lupus Erythematosus in Clinical Practice: A Narrative Review.

Systemic lupus erythematosus (SLE) is an autoimmune disease that more commonly affects African American people, although it is seen in people of all racial backgrounds. This condition is characterized by a dysregulated immune response resulting in widespread inflammation. Clinical manifestations caused by this inflammation include arthritis, anemia, cutaneous rashes, pleuritis, and nephritis.

Anomalous Pulmonary Vein Drainage Into the Innominate Vein Diagnosed After Central Line Placement: A Case Report Along With a Review of Rare Congenital Anatomy Partial Anomalous Pulmonary Venous Return.

Anomalous pulmonary vein drainage is a rare but clinically relevant variant of the cardiovascular anatomy. We present a case report of a 22-year-old male who was incidentally found to have anomalous pulmonary vein drainage into the innominate vein. The patient had a known history of seizures and was brought to the emergency department following a simple tonic-clonic seizure.

Stakeholder perspectives on barriers and facilitators to hypertension control in urban Haiti: a qualitative study to inform a community-based hypertension management intervention.

Background: Uncontrolled hypertension is the leading modifiable risk factor for cardiovascular disease mortality and remains high in low-middle income countries like Haiti. Barriers and facilitators to achieving hypertension control in urban Haiti remain poorly understood. Elucidating these factors could lead to development of successful interventions.

Refining breast cancer genetic risk and biology through multi-ancestry fine-mapping analyses of 192 risk regions.

Genome-wide association studies have identified approximately 200 genetic risk loci for breast cancer, but the causal variants and target genes are mostly unknown. We sought to fine-map all known breast cancer risk loci using genome-wide association study data from 172,737 female breast cancer cases and 242,009 controls of African, Asian and European ancestry. We identified 332 independent association signals for breast cancer risk, including 131 signals not reported previously, and for 50 of them, we narrowed the credible causal variants down to a single variant.