Publications by authors named "Ramos N"

This study evaluated the survival probabilities of two lithia-based glass-ceramics after final crystallization in a microwave furnace using conventional crystallization as a reference. Disc-shaped samples of a lithium silicate (LS, Celtra Duo) and a lithium disilicate (LD, e.max CAD) were prepared and divided into two groups according to the crystallization method (n = 30): microwave (M) or conventional furnaces (C).

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Background: The International Index of Erectile Function (IIEF) stands out for its utility and widespread use to measure sexual function in men. However, it lacks consistency in its internal latent structure across studies, has not been evaluated for measurement invariance, and has not undergone psychometric validation for its 15-item form in Spanish among South American countries.

Aim: To examine the IIEF's psychometric evidence (ie, structural/criterion validity and reliability) in a sample of adult men and determine its measurement invariance across relationship status (single vs in a relationship) and age generations (generations Z, Y/millennials, and X).

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This study investigated the optimal combination of compatibilizers and stabilizers to enhance the value of marine environment plastic (MEP). The composition of the plastics was analysed, and a simulated recycled plastic blend (sMEP) was prepared based on a simplified composition of actual MEP. Different concentrations of three commercial compatibilizers (C1, C2 and C3) were tested to improve tensile strength.

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  • Warthin's tumor is a common benign tumor in the parotid gland, often appearing in multiple places or in both glands at the same time in 20% - 30% of cases.
  • This case report highlights a rare instance of Warthin's tumor that occurred simultaneously in both parotid glands and outside the parotid area.
  • The low occurrence of such cases may be underestimated, and raising awareness could help doctors improve diagnosis and treatment for patients.
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Porcine circovirus type 2 (PCV2) is a highly damaging pathogen for pig farming, causing significant economic losses. Despite the availability of vaccines based on different technologies, the virus steadily infects the world's pig population. In this context, virus-like particles (VLPs) constitute appealing alternatives for vaccine development as they lack the viral genome but present intact external surfaces.

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Africa's health landscape is rapidly changing, requiring new solutions such as a focus on health literacy. However, there is currently a limited overview of the development and application of health literacy in African countries and societies. This scoping review aims to analyze scientific publications on health literacy in Africa with regards to research approaches, historical developments, geographic origins, target populations and settings, and topical interests.

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  • Excessive androgen levels in postmenopausal women are often due to hormonal imbalances, primarily a rapid decline in estrogen and a slower decrease in androgens, alongside lower levels of sex hormone-binding globulin.
  • *Hyperandrogenism poses risks such as increased cardiovascular issues, gynecological cancers, and negative effects on women's emotional health, making proper evaluation essential for treatment.
  • *Common symptoms women may experience include facial hair growth and hair loss; sudden onset or severe symptoms warrant further investigation for potential tumors, with diagnosis assisted by medical history, testosterone level testing, and imaging studies.
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Insulin autoimmune syndrome or Hirata's disease is a rare condition characterized by hypoglycemia associated with endogenous autoimmune hyperinsulinism. This report concerns the case of a 28-year-old Latin American woman with Graves' disease who developed insulin autoimmune syndrome and then subsequently became pregnant. She displayed symptoms related to severe hypoglycemia due to hyperinsulinemia, elevated C-peptide, and anti-insulin antibodies.

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  • Acute kidney injury (AKI) is a common complication in hospitalized COVID-19 patients, worsened by underlying health issues; the Spanish Society of Nephrology launched the AKI-COVID Registry to collect data and analyze outcomes for these patients.
  • A study of 730 patients revealed that most were older, predominantly men, and had high rates of hypertension and diabetes; many required ventilatory support, with a notable 33.9% needing renal replacement therapy (RRT) during hospitalization.
  • Key predictors for needing RRT included smoking, the requirement for ventilatory support, and higher maximum creatinine levels; overall, 38.6% of patients died in the hospital, with more severe AKI
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Introduction: Atypical hemolytic uremic syndrome (aHUS) is a complement system (CS)-mediated ultrarare disease that manifests as thrombotic microangiopathy (TMA) with preferential small kidney vessels involvement. Transient CS activation is also observed in secondary TMA or in patients at risk of developing aHUS. There is no gold standard test to monitor disease activity; however, the C5b-9 deposition test seems to be a good approach.

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Introduction: Diabetic Kidney Disease (DKD) is the most common cause of end-stage chronic kidney disease (CKD), conditioning these patients to a worse renal prognosis and higher cardiovascular mortality and/or requirement for renal replacement therapy. The use of novel information and communication technologies (ICTs) focused on the field of health, may facilitates a better quality of life and disease control in these patients. Our objective is to evaluate the effect of monitoring DKD patients using NORA-app.

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  • * A total of 530 patients were reported, with the majority exhibiting pneumonia; the study highlighted high rates of ICU admissions (50.6%) and notable resistance to antibiotics among meningial and non-meningial isolates.
  • * The findings indicated a decrease in PCV10 serotypes but an increase in the prevalence of serotypes 19A and 6C, leading to Colombia's decision to switch to the PCV13 vaccine in July 202
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Purpose: To investigate the effect of adhesive type and long-term aging on the shear bond strength (SBS) between silica-based ceramics and composite cement (CC).

Materials And Methods: Lithium-silicate (LS), feldspathic (FD) and polymer-infiltrated ceramic (PIC) blocks were sectioned (10 x 12 x 2 mm) and divided into 24 groups considering the factors: "ceramics" (LS, FD, and PIC), "adhesive" (Ctrl: without adhesive; 2SC: 2-step conventional; 3SC: 3-step conventional; 1SU: 1-step universal), and "aging" (non-aged or aged [A]). After the surface treatments, CC cylinders (n = 15, Ø = 2 mm; height = 2 mm) were made and half of the samples were subjected to thermocycling (10,000) and stored in water at 37°C for 18 months.

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  • Asian Americans feel more uncomfortable about mental health issues and seek help less than White Americans, and there's not much information about Filipinos in the Philippines regarding this.
  • * A study surveyed Filipinos and Americans about their attitudes toward mental disorders and seeking help, finding that Filipinos had more stigma around personal issues and getting treatment.
  • * Results show that factors like parental education and urban living can influence how Filipino people view mental health, which can help create better programs to reduce stigma and encourage people to seek help.
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  • Unicellular organisms, like diatoms, manage their cell size carefully, with diatoms showing two conflicting theories about how this happens.
  • Research on the diatom species Stephanopyxis turris over two years revealed that larger cells shrink in size due to their rigid silica cell walls.
  • However, once the cells become smaller than a certain point, they stabilize and fluctuate around a consistent size, demonstrating a balance between size reduction and the ability to adjust their cell wall elasticity.
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The present study aimed to characterize the microstructure of a temporary 3D printing polymer-based composite material (Resilab Temp), evaluating its optical properties and mechanical behavior according to different post-curing times. For the analysis of the surface microstructure and establishment of the best printing pattern, samples in bar format following ISO 4049 (25 × 10 × 3 mm) were designed in CAD software (Rhinoceros 6.0), printed on a W3D printer (Wilcos), and light-cured in Anycubic Photon for different lengths of time (no post-curing, 16 min, 32 min, and 60 min).

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This study analyzed the physical-chemical properties of bioactive ionomer materials. Cention N bioactive materials were evaluated chemically activated (CN) and light-cured (CN-LC), Equia Forte Fill (EQUI); conventional resin composite Filtek Z350 XT (Z350); resin glass ionomer cement Riva light Cure (RIVA) and flowable resin composite Filtek Bulk Fill Flow (BULK-F) were evaluated. Sixty specimens (n=10) were prepared for sorption (SR), solubility (SL), flexural strength (FS), shrinkage stress (SS), conversion degree (CD), microhardness (MI), and surface roughness (SR) tests.

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Background: The prevalence of depression and anxiety has increased in recent years, with many individuals having trouble accessing mental health support. Smartphones have become an integral part of modern life, with apps offering new ways to deliver evidence-based self-help strategies to cope with common mental health symptoms. However, most of them do not have empirical evidence of their overall effectiveness or the effectiveness of their components, which could pose a risk for users.

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The purpose of the current study was to explore the lived experiences among parent leaders and a program coordinator who participated in a parent-directed training program to support other Latine parents of children with autism spectrum disorder. We used qualitative methods to explore 4 Latine parent leaders' and 1 program coordinator's experiences with a parent-directed training program to support other Latine parents who have children with autism spectrum disorder. We interviewed parent leaders and a program coordinator to learn about their lived experiences as leaders in a parent-directed training program.

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  • The study aimed to analyze how symptoms evolve in patients with symptomatic severe aortic stenosis (sSAS) after undergoing valve replacement and the factors that predict whether these symptoms persist.
  • Out of 451 patients studied, approximately 57% continued to experience symptoms after the procedure, mainly dyspnea and heart failure, highlighting the complexity of post-operative recovery.
  • Factors such as age, body mass index, and previous heart failures were linked to persistent symptoms, which in turn were associated with higher overall mortality rates over a follow-up period of about 56 months.
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In recent years, microbial carotenoids have emerged as a promising alternative for the pharmaceutical and food industries, particularly in promoting human health due to their potent antioxidant and antimicrobial properties. Microbial carotenoids, particularly those produced by yeast, bacteria, and microalgae, are synthesized intracellularly, requiring the use of solvents for their effective extraction and recovery. The conventional use of toxic volatile organic solvents (VOCs) like hexane, petroleum ether, and dimethyl sulfoxide in the extraction of microbial carotenoids has been common.

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The workforce of mental health providers serving lesbian, gay, bisexual, transgender, queer, and/or questioning (LGBTQ+) youth lags far behind the demand for LGBTQ-focused mental health care. Unsatisfactory training and a lack of standardized training metrics for accredited programs perpetuate the lack of preparedness among providers. The presence of LGBTQ+ faculty and mentors in medical education increases the amount of LGBTQ+ content taught to trainees and improves professional development for LGBTQ+ trainees.

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