Microwave-Driven Reduction Accelerates Oxygen Exchange in Perovskite Oxides.

Microwave-assisted oxide reduction has emerged as a promising method to electrify chemical looping processes for renewable hydrogen production. Moreover, these thermochemical cycles can be used for thermochemical air separation, electrifying the O generation by applying microwaves in the reduction step. This approach offers an alternative to conventional cryogenic air separation, producing pure streams of O and N.

Microwave-Driven Exsolution of Ni Nanoparticles in A-Site Deficient Perovskites.

Exsolution has emerged as a promising method for generating metallic nanoparticles, whose robustness and stability outperform those of more conventional deposition methods, such as impregnation. In general, exsolution involves the migration of transition metal cations, typically perovskites, under reducing conditions, leading to the nucleation of well-anchored metallic nanoparticles on the oxide surface with particular properties. There is growing interest in exploring alternative methods for exsolution that do not rely on high-temperature reduction via hydrogen.

The effect of stressful life events on the risk for psychosis: differences between Mexican at clinical and familial high risk.

Background: Stressful life events (SLEs) in the development of early psychosis have been little studied in low-income countries. This study examines differences in the prevalence of SLEs in Mexican at clinical high risk (CHR) and those with familial high risk for psychosis who do not meet CHR criteria (non-CHR FHR). We also analyze the association between SLEs and CHR.

Modulating redox properties of solid-state ion-conducting materials using microwave irradiation.

The industrial adoption of low-carbon technologies and renewable electricity requires novel tools for electrifying unitary steps and efficient energy storage, such as the catalytic synthesis of valuable chemical carriers. The recently-discovered use of microwaves as an effective reducing agent of solid materials provides a novel framework to improve this chemical-conversion route, thanks to promoting oxygen-vacancy formation and O-surface exchange at low temperatures. However, many efforts are still required to boost the redox properties and process efficiency.

From a learning opportunity to a conscious multidimensional change: a metasynthesis of transcultural learning experiences among nursing students.

Background: Several educational activities in nursing schools worldwide have been implemented to promote transcultural nursing and cultural competence. Despite the diversity of their experiences and outcomes, the available evidence has not been systematically reviewed and reinterpreted. This study aimed to review and reinterpret all rigorous qualitative evidence available, providing an opportunity to understand how students learn transcultural nursing and assisting faculties, researchers, managers, and practitioners in designing new interventions to improve transcultural training.

Scaling the Andean Shilajit: A Novel Neuroprotective Agent for Alzheimer's Disease.

Alzheimer's disease (AD) is a multifactorial neurodegenerative disorder without a cure, despite the enormous number of investigations and therapeutic approaches. AD is a consequence of microglial responses to "damage signals", such as aggregated tau oligomers, which trigger a neuro-inflammatory reaction, promoting the misfolding of cytoskeleton structure. Since AD is the most prevalent cause of dementia in the elderly (>60 years old), new treatments are essential to improve the well-being of affected subjects.

Impact of Facebook on Social Support and Emotional Wellbeing in Perinatal Women during Three Waves of the COVID-19 Pandemic in Mexico: A Descriptive Qualitative Study.

The COVID-19 pandemic affected the mental health of pregnant and postpartum women in unique, unprecedented ways. Given the impossibility of delivering face-to-face care, digital platforms emerged as a first-line solution to provide emotional support. This qualitative study sought to examine the role that a closed Facebook group (CFG) played in providing social support for Mexican perinatal women and to explore the concerns they shared during the COVID-19 pandemic.

Challenges of Perinatal Depression Care in Mexico City Health Centers.

Background: Perinatal depression is a common mental disorder regarded as a severe public health problem. Studies have shown that incorporating mental health care into primary health services that provide pregnancy care makes it easier for women to seek help for depressive symptoms. In this context, the following question is of interest: How prepared are primary health services in Mexico City that provide pregnancy and postpartum care to treat perinatal depression? This article seeks to explore the perceptions and knowledge of perinatal depression in health professionals and analyze the barriers to its care at primary care centers in Mexico City.

Satisfaction and Acceptability Ratings of a Web-Based Self-help Intervention for Depression: Retrospective Cross-sectional Study From a Resource-Limited Country.

Background: Web-based interventions are at an early stage in non-English-speaking low- and middle-income countries, where they remain scarce. Help for Depression (HDep) is one of the few unguided web-based interventions available in Latin America. The results of a use/usability analysis of the original version served as the basis for generating a more user-friendly second version.

Practical protocol of the food allergy committee of the seicap on open oral food challenges to nuts.

Food allergy is rising rapidly among children, and allergy to nuts is one of the most prevalent allergies among them. The category "nuts and seeds" include several plant foods from different botanical families, very different from each other. It is not uncommon to detect co-sensitization to different nuts.

Comparative Study of Epoxy-CsHPO Composite Electrolytes and Porous Metal Based Electrocatalysts for Solid Acid Electrochemical Cells.

Electrochemical cells based on acid salts (CsHPO) have attracted great interest for intermediate temperature, due to the outstanding proton conductivity of acid salts. In this work, electrodes and electrolyte were optimized following different strategies. An epoxy resin was added to the CsHPO material to enhance the mechanical properties of the electrolyte, achieving good conductivity, enhanced stability, and cyclability.

Perinatal Anxiety Symptoms: Rates and Risk Factors in Mexican Women.

Anxiety during pregnancy and after childbirth can have negative consequences for a woman and her baby. Despite growing interest in the perinatal mental health of Mexican women living in the U.S.

Intimate partner violence and perinatal depression and anxiety: Social support as moderator among Mexican women.

Aims: To assess the frequency of perinatal Intimate Partner Violence (IPV), the association between IPV and depressive and anxiety symptoms, and the role of social support (SS) in the relation between IPV and depressive and anxiety symptoms, controlling for sociodemographic factors.

Method: Women were assessed during pregnancy and at six months postpartum (n = 210). The instruments used were: Stressful Life Events Scale; the Patient Health Questionnaire-9; the Anxiety Subscale of the Symptom Checklist-90 and the Social Support Subscale of the Postpartum Depression Predictors Inventory-Revised.

A Cross-Cultural Analysis of the Prevalence and Risk Factors for Prenatal Depression in Spain and Mexico.

The prevalence and risk factors associated with prenatal depression among Spanish-speaking women in Spain and Mexico are examined and compared through a cross-cultural study. The study utilizes secondary data from 563 participants who received prenatal care in Madrid (N = 283) and in Mexico City (N = 280), assessed with the PHQ-9 and the PDPI-R. Spanish women reported a lower prevalence of depressive symptoms (10.

Inflammation: A Major Target for Compounds to Control Alzheimer's Disease.

Several hypotheses have been postulated to explain how Alzheimer's disease is triggered, but none of them provide a unified view of its pathogenesis. The dominant hypothesis based on build-ups of the amyloid-β peptide has been around for longer than three decades; however, up to today, numerous clinical trials based on the amyloid postulates have been attempted, but all of them have failed. Clearly, the revisited tau hypothesis provides a better explanation of the clinical observations of patients, but it needs to integrate the cumulative observations on the onset of this disease.

Patient Health Questionnaire-9 scores do not accurately estimate depression prevalence: individual participant data meta-analysis.

Objectives: Depression symptom questionnaires are not for diagnostic classification. Patient Health Questionnaire-9 (PHQ-9) scores ≥10 are nonetheless often used to estimate depression prevalence. We compared PHQ-9 ≥10 prevalence to Structured Clinical Interview for Diagnostic and Statistical Manual of Mental Disorders (SCID) major depression prevalence and assessed whether an alternative PHQ-9 cutoff could more accurately estimate prevalence.

Oxidative status and metabolic profile in a long-lived bird preparing for extreme endurance migration.

The high metabolic activity associated with endurance flights and intense fuelling of migrant birds may produce large quantities of reactive oxygen species, which cause oxidative damage. Yet it remains unknown how long-lived birds prepare for oxidative challenges prior to extreme flights. We combined blood measurements of oxidative status and enzyme and fat metabolism in Hudsonian godwits (Limosa haemastica, a long-lived shorebird) before they embarked on non-stop flights longer than 10,000 km during their northbound migrations.

Neuroinflammation as a Common Feature of Neurodegenerative Disorders.

Neurodegenerative diseases share the fact that they derive from altered proteins that undergo an unfolding process followed by formation of β-structures and a pathological tendency to self-aggregate in neuronal cells. This is a characteristic of tau protein in Alzheimer's disease and several tauopathies associated with tau unfolding, α-synuclein in Parkinson's disease, and huntingtin in Huntington disease. Usually, the self-aggregation products are toxic to these cells, and toxicity spreads all over different brain areas.

Infant temperament and perinatal depressive and anxiety symptoms in Mexican women.

Aim: This study explores the association between infant temperament at six months postpartum and pre- and postpartum depressive and anxiety symptoms. The association between infant temperament and stressful life events is also evaluated.

Method: A total of 210 Mexican women were assessed during pregnancy (gestational age 32.

Mutacytin-1, a New C-Type Lectin-Like Protein from the Venezuelan Cuaima ( Linnaeus, 1766) (Serpentes: Viperidae) Snake Venom Inducing Cardiotoxicity in Developing Zebrafish () Embryos.

Envenomation by the Venezuelan bushmaster snake () (Serpentes: Viperidae) is characterized by local and cardiac alterations. This study investigates the cardiac dysfunction, tissue destruction, and cellular processes triggered by snake crude venom and a C-type lectin (CTL)-like toxin named Mutacytin-1 (MC-1). The 28 kDa MC-1 was obtained by molecular exclusion, ion exchange, and C-18 (checking pureness) reverse-phase chromatographies.

Biomarkers for Alzheimer's Disease.

Alzheimer´s disease (AD) and related forms of dementia are increasingly affecting the aging population throughout the world, at an alarming rate. The World Alzheimer´s Report indicates a prevalence of 46.8 million people affected by AD worldwide.

Protonic Conduction of Partially-Substituted CsH₂PO₄ and the Applicability in Electrochemical Devices.

CsH₂PO₄ is a proton conductor pertaining to the acid salts group and shows a phase transition from monoclinic to cubic phase at 232 ± 2 °C under high-steam atmospheres (>30%). This cubic phase gives rise to the so-called superprotonic conductivity. In this work, the influence of the partial substitution of Cs by Ba and Rb, as well as the partial substitution of P by W, Mo, and S in CsH₂PO₄ on the phase transition temperature and electrochemical properties is studied.

Sensitivity and specificity of the three Whooley and Arroll questions for detecting perinatal depression in Mexican women.

Objective: To evaluate the sensitivity and specificity of the Two Whooley questions and the Arroll question, using the SCID, The Structured Clinical Interview (SCID-I) as the gold standard for detecting perinatal depression.

Materials And Methods: We interviewed 210 women during pregnancy and 6 months postpartum.

Results: The criterion with the greatest sensitivity was responding positively to either Whooley question (pregnancy= 94.