Justo Sierra University

Purpose Conjugate heat and mass transfer between a solid and its surrounding fluid is a problem of widespread importance in environmental and engineering applications. However, popular CFD packages like OpenFOAM overlook mass transport as an active agent that can influence heat transfer through evaporation. Design/methodology/approach In this research, a combined heat–mass transfer OpenFOAM solver is developed and tested. The model was based on the chtMultiRegionFoam solver, where a mass transport equation was involved. The solid mass diffusivity was set as a function of temperature. Furthermore, two interfacial conditions were devised to account for the heat–mass interaction at the interface. The model was utilized to simulate heat and mass transfer in a convective food drying process. A semi-cylindrical carrot sample with a 10 mm diameter and 60 mm length was used as the food material. Findings The results were validated with experimental data from the literature. Ignoring the material–thermal interaction leads to large discrepancies from the actual case. Originality/value This research investigates upgrading the ready chtMultiRegionFoam solver to actively simlate mass transport. The solver has to be inherently modified to account for the evaporation/condensation processes adjointing mass transport. Besides, the devised mass transport process has to be related to the thermal conditions through the solid and fluid properties. Finally, modified interfacial conditions were implemented to adequately simulate the heat and transfer processes at the solid–fluid interface.

La doctrina de Monroe-Kellie establece que el cráneo, como compartimento rígido, contiene tres componentes principales: parénquima cerebral, sangre y líquido cefalorraquídeo (LCR). Bajo condiciones normales, la sumatoria de los volúmenes intracraneales permanece relativamente constante, y el aumento de uno de ellos requiere una compensación que evite incrementos significativos en la presión intracraneal (PIC) [1,2]. Esta premisa fisiológica es fundamental para comprender la dinámica intracraneal en el contexto del traumatismo craneoencefálico (TCE), un escenario clínico complejo en el que lesiones primarias y secundarias alteran el balance intracraneal y ponen en riesgo la perfusión cerebral y la función neurológica [3,4].Este artículo de revisión analiza los fundamentos de la doctrina de Monroe-Kellie, su aplicación en la monitorización de la PIC, las técnicas actuales disponibles y las estrategias terapéuticas dirigidas a prevenir y controlar la hipertensión intracraneal en el TCE [5]. Además, se discute el rol de la autorregulación cerebral, la integración del neuromonitoreo multimodal, la incorporación de biomarcadores emergentes y las perspectivas futuras orientadas a mejorar los desenlaces clínicos [6,7].

Lors de la mise en place de la prévention sida en 1994 au Cap d’Agde Naturiste, la cohabitation naturisme familial en journée, libertinage le soir et la nuit est bouleversée par l’extension du nombre de voyeurs, l’arrivée massives de libertin…es(toutes couches sociales confondues) et les transformations des sexualités.L’article décrit les situations topographiques, sexuelles et sociales, les mises en scène des corps, et les réponses administratives et policières à ce dérèglement.Dans cette capitale européenne de l’échangisme, comme partout en France, le commerce libertin, tourisme compris, quitte l’artisanat, le bricolage et le « fait-main » pour se capitaliser et s’industrialiser.À l’opposé d’un « naturisme naturaliste » qui fleure bon les valeurs familialistes réactionnaires, se développe une offre de sexualités dites « non-conformistes » qui se propose de satisfaire couples, hommes seuls et les quelques rares femmes seules qui affluent au fur et à mesure que la grande presse en parle. Le tout baigné par la domination masculine hétéronormative.

This paper examines the concept of the bridal chamber within the framework of the mystical wedding, focusing in particular on Psalm 19. The article presents the significance of the bridal chamber in both secular and religious traditions throughout history. In ancient times, the retreat of the bride and groom into intimacy was considered the key moment of the wedding ceremony, and the marital union was not considered complete until it was consummated. Drawing on historical and patristic sources, the paper proposes four interpretations of the bridal chamber in biblical history: (1) the holy temple, in parallel with the Garden of Eden, the Church, and the Synagogue; (2) the womb of the Virgin Mary; (3) the tomb of Christ; and (4) man himself, both body and soul.

Obesity, influenced by environmental pollutants, can lead to complex metabolic disruptions. This systematic review and meta-analysis examined the molecular mechanisms underlying metabolically abnormal obesity caused by exposure to a high-fat diet (HFD) and fine particulate matter (PM2.5). Following the PRISMA guidelines, articles from 2019 to 2024 were gathered from Scopus, Web of Science, and PubMed, and a random-effects meta-analysis was performed, along with subgroup analyses and pathway enrichment analyses. This study was registered in the Open Science Framework. Thirty-three articles, mainly case-control studies and murine models, were reviewed, and they revealed that combined exposure to HFD and PM2.5 resulted in the greatest weight gain (82.835 g, p = 0.048), alongside increases in high-density lipoproteins, insulin, and the superoxide dismutase. HFD enriched pathways linked to adipocytokine signaling in brown adipose tissue, while PM2.5 impacted genes associated with fat formation. Both exposures downregulated protein metabolism pathways in white adipose tissue and activated stress-response pathways in cardiac tissue. Peroxisome proliferator-activated receptor and AMP-activated protein kinase signaling pathways in the liver were enriched, influencing non-alcoholic fatty liver disease. These findings highlight that combined exposure to HFD and PM2.5 amplifies body weight gain, oxidative stress, and metabolic dysfunction, suggesting a synergistic interaction with significant implications for metabolic health.

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ResumenAntecedentes: Dada la creciente necesidad de asistencia hospitalaria en los adultos mayores, resulta importante obtener datos que nos permitan mejorar las estrategias y los indicadores para su atención.Objetivo: Conocer los días de estancia y causas de mortalidad de los adultos mayores internados en un servicio de medicina interna (MI).Método: Se analizó la evolución de los adultos mayores hospitalizados en MI del

investigar in vivo o potencial protetor da PRL contra a ao txica do metilmercrio (MeHg) em Geophagus brasiliensis (peixe acar) atravs do teste do microncleo e anlises bioqumicas de catalase (CAT) e glutationa peroxidase (GPx). METODOLOGIA: os peixes foram divididos em 3 grupos: 1) NC: Controle Negativo (n=6); 2) MeHg a 0,5 mg/L (n=6); e 3) MeHg a 0,5 mg/L e PRL a 250 g/kg de 12h/12h (n=6) (a PRL foi administrada por injeo intraperitoneal). Todas as anlises bioqumicas foram realizadas atravs de espectrofotometria. O tratamento durou 5 dias e a contaminao foi por via hdrica.

A bnormalities in amphibians have generated interest in the scientific community among those who seek to determine whether the causes are anthropogenic or not. Abnormalities fall into two main categories: malformations that consist of permanent structural defects resulting from abnormal development, and deformities that are disturbances of a properly formed structure Some factors that have been recognized and questioned as causing these abnormalities are infestation by parasites, environmental contaminants, selective predation, inbreeding, and high levels of ultraviolet radiation (Aguilln-Gutirrez 2018). Even though some etiological agents are common, few studies have been published on these abnormalities in Mexico

Urinary tract infections are the most common infections in pregnant women. The most common are asymptomatic bacteriuria, cystitis and pyelonephritis, the latter presenting as a complication in 1 to 2% of women. Urolithiasis is also very common, complicating approximately 1 in every 2,000 pregnancies. These entities usually occur due to physiological changes that occur during pregnancy, such as enlargement of both kidneys, increased glomerular filtration rate, as well as dilatation of the renal pelvis and ureters. It is important to perform imaging studies to establish the diagnosis, being renal ultrasound the first line option in the pregnant patient with renal colic because it is harmless to the patient and fetus. Treatment can be conservative with hydration and pain management with analgesics.