3,046 results match your criteria: "Higher Engineering School. University of Almería. Almería ( Spain ).[Affiliation]"

Up-flow anaerobic sludge blanket bioreactor for the production of carboxylates: effect of inocula on process performance and microbial communities.

Bioresour Bioprocess

January 2025

Biotechnology Processes Unit, IMDEA Energy, Avda. Ramón de la Sagra 3, Móstoles, Madrid, 28935, Spain.

This research investigated the acidogenic fermentation (AF) of sugar cane molasses in an up-flow anaerobic sludge blanket (UASB) reactor for the production of carboxylates. The first step was to assess the optimum process temperature (25, 35 or 55 ºC) using two different granular inocula, one from a brewery company (BGS) and other from a paper plant company (PGS). These experiments determined that the most suitable temperature for carboxylates production was 25 ºC, obtaining higher bioconversions (27.

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Purpose: Bangladesh has experienced a rapid epidemiological transition from communicable to non-communicable diseases (NCDs) in recent decades. There is, however, limited evidence about multidimensional determinants of NCDs in this population. The BangladEsh Longitudinal Investigation of Emerging Vascular and nonvascular Events (BELIEVE) study is a household-based prospective cohort study established to investigate biological, behavioural, environmental and broader determinants of NCDs.

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Depressive Symptoms and Amyloid Pathology.

JAMA Psychiatry

January 2025

Department of Psychiatry and Neurochemistry, Institute of Neuroscience and Physiology, Sahlgrenska Academy at the University of Gothenburg, Mölndal, Sweden.

Importance: Depressive symptoms are associated with cognitive decline in older individuals. Uncertainty about underlying mechanisms hampers diagnostic and therapeutic efforts. This large-scale study aimed to elucidate the association between depressive symptoms and amyloid pathology.

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This work aimed to study the production, for the first time, of three fermented products of chestnut puree (CP) with milk kefir grains, a higher nisin-producing (Lactococcus (L.) lactis CECT 539) and a higher lactic acid-producing (Lactobacillus (Lb.) casei CECT 4043) lactic acid bacteria (LAB).

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Microphytobenthos spatio-temporal dynamics across an intertidal gradient in a tropical estuary using Sentinel-2 imagery.

Sci Total Environ

January 2025

Department of Biology, Faculty of Marine and Environmental Sciences, University of Cádiz, Puerto Real 11510, Cádiz, Spain; Instituto Universitario de Investigación Marina (INMAR), Campus Universitario de Puerto Real, 11510 Cadiz, Spain.

Intertidal mudflats are among the most productive coastal ecosystems, largely because of the activity of the photosynthetic microbial community on the sediment surface, known as microphytobenthos (MPB). While the dynamics of MPB have been extensively studied in temperate estuaries, there is limited research in tropical estuaries. To address this knowledge gap, we investigated the spatio-temporal dynamics of MPB in the Nicoya Gulf (Costa Rica), one of the world's most productive tropical estuaries, using Sentinel-2 images at 10 m spatial resolution from 2018 to 2022.

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Diffuse coronary artery disease (CAD) impacts the immediate hemodynamic and clinical outcomes of percutaneous coronary intervention (PCI). We evaluated whether the diffuse pattern of CAD derived from angiographic Quantitative flow ratio (QFR) impacts the immediate hemodynamic outcome post-PCI and the medium term predicted vessel-oriented composite endpoint (VOCE). Paired pre-procedure QFRs were assessed in 503 patients and 1022 vessels in the Multivessel TALENT (MVT) trial.

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Implantable drug delivery systems are crucial for achieving sustained delivery of active compounds to specific sites or systemic circulation. In this study, a novel reservoir-type implant combining a biodegradable rate-controlling membrane with a drug-containing core prepared using direct compression techniques is developed. The membrane is composed of poly(caprolactone) (PCL), and risperidone (RIS) served as the model drug.

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Objective: This study aims to evaluate the impact of prompt construction on the quality of artificial intelligence (AI) chatbot responses in the context of head and neck surgery.

Study Design: Observational and evaluative study.

Setting: An international collaboration involving 16 researchers from 11 European centers specializing in head and neck surgery.

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Analyzing the impact of prolonged pauses on soccer performance.

Sci Rep

January 2025

LFE Research Group, Department of Health and Human Performance, Faculty of Physical Activity and Sport Science-INEF, Universidad Politécnica de Madrid, Madrid, Spain.

During breaks or playing period changes, players' accumulated workload, physiological alterations, body composition factors, sleep, and health-related qualities can factor into soccer performance. This research examined the impact of prolonged pauses, including breaks due to the 2022 FIFA World Cup and an earthquake tragedy, on running displacements and ball in-play duration during the 2022/23 Turkish Super League season. The secondary purpose was to determine the relationship between performance metrics and competition outcomes (i.

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The Warburg effect, which describes the fermentation of glucose to lactate even in the presence of oxygen, is ubiquitous in proliferative mammalian cells, including cancer cells, but poses challenges for biopharmaceutical production as lactate accumulation inhibits cell growth and protein production. Previous efforts to eliminate lactate production in cells for bioprocessing have failed as lactate dehydrogenase is essential for cell growth. Here, we effectively eliminate lactate production in Chinese hamster ovary and in the human embryonic kidney cell line HEK293 by simultaneous knockout of lactate dehydrogenases and pyruvate dehydrogenase kinases, thereby removing a negative feedback loop that typically inhibits pyruvate conversion to acetyl-CoA.

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Independent effect of body fat content on inflammatory biomarkers in children and adolescents: The GENOBOX study.

Nutr Metab Cardiovasc Dis

November 2024

Growth, Exercise, Nutrition and Development (GENUD) Research Group, Department of Physiatry and Nursing, University of Zaragoza, 50009, Zaragoza, Spain; Pediatric Endocrinology Unit, Lozano Blesa Clinic Hospital, Faculty of Medicine, University of Zaragoza, 50009, Zaragoza, Spain; Aragon Agrofood Institute (IA2), Health Research Institute (IIS Aragón), University of Zaragoza, 50009, Zaragoza, Spain; Obesity and Nutrition Physiopathology Center (CIBERobn), Carlos III Health Institute, 28029, Madrid, Spain. Electronic address:

Background And Aims: To assess the relationship between body composition indicators and inflammatory biomarkers in children and adolescents of the GENOBOX study.

Methods And Results: Anthropometry data from 264 subjects from the subsample of Zaragoza (Spain) included: weight, height, waist circumference, body mass index and triponderal index. Body composition was determined by Dual-energy X-ray Absorptiometry (DXA), obtaining visceral adipose tissue, fat mass index and lean mass index.

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This study aimed to examine the employment status of patients who have experienced ischemic heart disease one year after undergoing cardiac rehabilitation. For this, a quasi-experimental pre-post study without a control group of active workers aged 18 to 65 years diagnosed with ischemic heart disease and included in a cardiac rehabilitation programme was conducted. Sociodemographic and occupational data, cardiovascular risk factors and clinical-therapeutic data on heart disease were collected.

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Atomic nuclei serve as prime laboratories for investigations of complex quantum phenomena, where minor nucleon rearrangements cause significant structural changes. Pb is the heaviest known neutron-deficient Pb isotope that can exhibit three distinct shapes: prolate, oblate, and spherical, with nearly degenerate excitation energies. Here we report on the combined results from three state-of-the-art measurements to directly observe these deformations in Pb.

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Innovative applications of cobalt tungstate nanoparticles (CoWO NPs) are directly linked to their increased production and consumption, which can consequently increase their release into aquatic ecosystems and the exposure of organisms. Microalgae are autotrophic organisms that contribute directly to global primary productivity and provide oxygen for maintaining many organisms on Earth. In this paper, we assessed the toxicity of CoWO NPs when in contact with the freshwater microalga Raphidocelis subcapitata (Chlorophyceae).

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The recent coronavirus disease (COVID-19) forced pre-university professionals to modify the educational system. This work aimed to determine the effects of pandemic situation on students' access to medical studies by comparing the performance of medical students. We evaluated the performance of students enrolled in a subject taught in the first semester of the medical curriculum in two pre-pandemic academic years (PRE), two post-pandemic years (POST), and an intermediate year (INT) using the results of a final multiple-choice exam.

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Improved Functionality, Quality, and Shelf Life of -Type Camel Sausage Fortified with Spirulina as a Natural Ingredient.

Foods

December 2024

Facultad de Veterinaria, Instituto Agroalimentario de Aragón-IA2, Universidad de Zaragoza-CITA, 50013 Zaragoza, Spain.

The objective of the present work was to examine the effect of incorporating spirulina powder (SP) in -type sausages made exclusively with camel meat, as well as to evaluate its physicochemical, microbiological, and sensory quality attributes and its prebiotic potential. The final purpose was to offer an innovative meat product to increase camel meat consumption. Several innovative fresh sausage formulations were developed using SP (00, 100, 250, and 500 mg/kg) and stored under vacuum conditions with refrigeration at 1 ± 1 °C for 35 days.

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A Time Series Proposal Model to Define the Speed of Carbon Steel Corrosion in an Extreme Acid Environment.

Materials (Basel)

December 2024

Sustainable Mining Engineering Research Group, Department of Mining, Mechanic, Energetic and Construction Engineering, Higher Technical School of Engineering, University of Huelva, 21007 Huelva, Spain.

This article shows the behavior of the corrosive effect of acid mine water on carbon steel metal alloys. Mining equipment, composed of various steel alloys, is particularly prone to damage from highly acidic water. This corrosion results in material thinning, brittle fractures, fatigue cracks, and ultimately, equipment failure.

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Propolis is a valuable natural resource for extracting various beneficial compounds. This study explores a sustainable extraction approach for Brazilian green propolis. First, supercritical fluid extraction (SFE) process parameters were optimized (co-solvent: 21.

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Recent studies have shown that novel collective behaviors emerge in complex systems due to the presence of higher-order interactions. However, how the collective behavior of a system is influenced by the microscopic organization of its higher-order interactions is not fully understood. In this work, we introduce a way to quantify the overlap among the hyperedges of a higher-order network, and we show that real-world systems exhibit different levels of intra-order hyperedge overlap.

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Several microtechnology devices quantify the external load of team sports using Global Positioning Systems sampling at 5, 10, or 15 Hz. However, for short, explosive actions, such as collisions, these sample rates may be limiting. It is known that very high-frequency sampling is capable of capturing changes in actions over a short period of time.

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Harnessing of Sunflower Stalks by Hydrolysis and Fermentation with to Produce Biofuels.

Polymers (Basel)

December 2024

Department of Chemical, Environmental and Materials Engineering, Higher Polytechnical School of University of Jaén, Avda. de la Universidad s/n, 23700 Linares, Spain.

A sequential valorization process of sunflower stalks was carried out using nitric acid (0.1-2 mol dm) as a hydrolytic agent and fermenting the hydrolysate of higher sugar concentration in the presence of the non-conventional yeast . Values reached for ethanol yield (0.

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Microstructure and Bioactivity of Ca- and Mg-Modified Silicon Oxycarbide-Based Amorphous Ceramics.

Materials (Basel)

December 2024

National Key Laboratory of Science and Technology on High-Strength Structural Materials, Central South University, Changsha 410083, China.

Silicon oxycarbide (SiOC), Ca- and Mg-modified silicon oxycarbide (SiCaOC and SiMgOC) were synthesized via sol-gel processing with subsequent pyrolysis in an inert gas atmosphere. The physicochemical structures of the materials were characterized by XRD, SEM, FTIR, and Si MAS NMR. Biocompatibility and in vitro bioactivity were detected by MTT, cell adhesion assay, and simulated body fluid (SBF) immersion test.

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Advanced Management of Patients Undergoing Transcatheter Treatment for Pulmonary Embolism: Evidence-Based Strategies for Optimized Patient Care.

J Clin Med

December 2024

Área del Corazón, Instituto de Investigación Biomédica de Málaga y Plataforma en Nanomedicina (IBIMA Plataforma BIONAND), Hospital Universitario Virgen de la Victoria, Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), Departamento de Medicina UMA, 29010 Malaga, Spain.

Pulmonary embolism (PE) is a life-threatening medical condition caused by the thrombotic occlusion of one or more branches of the lung vasculature, which represents the third most common cause of cardiovascular mortality after myocardial infarction and stroke. PE treatment requires a tailored approach based on accurate risk stratification and personalized treatment decision-making. Anticoagulation is the cornerstone of PE management, yet patients at higher clinical risk may require more rapid reperfusion therapies.

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Chronic kidney disease (CKD) is a progressive condition that affects more than 10% of the population worldwide, accounting for more than 843 million (M) individuals. The prevalence of CKD (844 M patients) is higher than that of diabetes mellitus (422 M patients), cancer (42 M patients), and HIV (37 M patients), but people are often less aware of it. Global expert groups predict reductions in the nephrology workforce in the next decade, with a declining interest in nephrology careers.

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Efficiency of telerehabilitation on subacute stroke ambulation: a matched case-control study.

Brain Impair

January 2025

Department of Research and Innovation, Institut Guttmann - Hospital de Neurorehabilitació, Institut Universitari de Neurorehabilitació adscrit a la UAB, Cami Can Ruti s/n, 08916, Badalona, Barcelona, Spain; and Universitat Autònoma de Barcelona, Bellaterra (Cerdanyola del Vallès), Spain; and Fundació Institut d'Investigació en Ciències de la Salut Germans Trias i Pujol, Badalona, Barcelona, Spain.

Article Synopsis
  • Stroke rehabilitation is increasingly needed worldwide, but there's limited evidence comparing telerehabilitation to in-person care.
  • A study found that patients with stroke who participated in telerehabilitation showed greater improvements in functional ambulation compared to those who received in-person rehabilitation.
  • Despite similar ambulation efficiency between the groups, telerehabilitation emerged as a promising alternative for individuals with moderate stroke severity, especially for those living with a partner at home.
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