Chromium removal by microbial mats: understanding the effect of salinity and pH.

Environmental contamination by chromium represents a serious public health problem. Therefore, it is crucial to develop and optimize remediation technologies to reduce its concentration in the environment. The aims of this study were to evaluate the uptake of chromium by live and complete microbial mats in experimental mesocosms under different pH and salinity conditions to understand how these factors affect the microphytobenthic community and, consequently, how chromium removal process is influenced. Microbial mats from the estuarine environment were exposed to 15 mg Cr/L under different pH (2, 4, and 8) and salinity (2, 15, and 33) conditions. Salinity, redox potential, and pH were measured throughout the trial in solutions and in microbial mats, while total Cr determinations were performed at the end of the assay. The results demonstrated that the removal efficiency of Cr by microbial mats was significantly improved in solutions at pH 2, remaining unaffected by variations in salinity. Notably, both cyanobacteria and diatoms showed remarkable resistance to Cr exposure under all conditions tested, highlighting their exceptional adaptability. Microbial mats have proved to be effective filters for reducing the concentration of chromium in aqueous solutions with varying pH and salinity levels.

Intravenous diltiazem infusions for rapid atrial fibrillation or flutter in the emergency department: A retrospective, exploratory analysis.

BACKGROUND: Emergency physicians commonly treat patients with atrial fibrillation (AF) or atrial flutter (AFL) with rapid ventricular response, and intravenous (IV) diltiazem is the most commonly used medication for rate control of such patients. We sought to compare rate control success and safety outcomes for emergency department (ED) patients with AF or AFL who, after a diltiazem bolus, received a diltiazem drip compared to those who did not receive a drip. METHODS: We performed a retrospective cohort study comparing outcomes of ED patients from a single hospital system with AF and AFL and a heart rate (HR) > 100 beats/min who received a diltiazem drip after an IV diltiazem bolus to those who received no drip. The primary outcome was a HR < 100 beats/min at the time of ED disposition. Secondary outcomes were hospital length of stay and safety (hypotension, electrical cardioversion, vasopressor use, and death). We compared groups using propensity score matching. RESULTS: Between January 1, 2020, and November 8, 2022, there were 746 AF or AFL patients eligible for analysis. Of those, 382 (51.2%) received a diltiazem drip and 364 (48.8%) did not. In the unadjusted analysis, the last recorded ED HR was <100 beats/min in 55.2% of patients in the drip group compared to 65.9% in the no-drip group (difference 10.7%, 95% confidence interval [CI] 3.7 to 17.7). After propensity matching, diltiazem drip use was associated with lower likelihood of rate control in the ED (OR 0.69, 95% CI 0.48-0.99) and 22.5 h (95% CI 12.2-36.8) longer hospital stay. CONCLUSIONS: For patients with AF or AFL, the use of a diltiazem drip after an IV diltiazem bolus was associated with less rate control in the ED.

The different response of Brassica napus genotypes to microspore embryogenesis induced by heat shock and trichostatin A is not determined by changes in cell wall structure and composition but by different stress tolerance.

During microspore embryogenesis, microspores are induced to develop into haploid embryos. In Brassica napus, microspore embryogenesis is induced by a heat shock (HS), which initially produces embryogenic structures with different cell wall architectures and compositions, and with different potentials to develop into embryos. The B. napus DH4079 and DH12075 genotypes have high and very low embryo yields, respectively. In DH12075, embryo yield is greatly increased by combining HS and the histone deacetylase (HDAC) inhibitor trichostatin A (TSA). However, we show that HS + TSA inhibits embryogenesis in the highly embryogenic DH4079 line. To ascertain why TSA has such different effects in these lines, we treated DH4079 and DH12075 microspore cultures with TSA and compared the cell wall structure and composition of the different embryogenic structures in both lines, specifically the in situ levels and distribution of callose, cellulose, arabinogalactan proteins and high and low methyl-esterified pectin. For both lines, HS + TSA led to the formation of cell walls unfavorable for embryogenesis progression, with reduced levels of arabinogalactan proteins, reduced cell adhesion of inner walls and altered pectin composition. Thus, TSA effects on cell walls cannot explain their different embryogenic response to TSA. We also applied TSA to DH4079 cultures at different times and concentrations before HS application, with no negative effects on embryogenic induction. These results indicate that DH4079 microspores are hypersensitive to combined TSA and HS treatments, and open up new hypotheses about the causes of such hypersensitivity.

CONSTANS, a HUB for all seasons: How photoperiod pervades plant physiology regulatory circuits.

How does a plant detect the changing seasons and make important developmental decisions accordingly? How do they incorporate daylength information into their routine physiological processes? Photoperiodism, or the capacity to measure the daylength, is a crucial aspect of plant development that helps plants determine the best time of the year to make vital decisions, such as flowering. The protein CONSTANS (CO) constitutes the central regulator of this sensing mechanism, not only activating florigen production in the leaves but also participating in many physiological aspects in which seasonality is important. Recent discoveries place CO in the center of a gene network that can determine the length of the day and confer seasonal input to aspects of plant development and physiology as important as senescence, seed size, or circadian rhythms. In this review, we discuss the importance of CO protein structure, function, and evolutionary mechanisms that embryophytes have developed to incorporate annual information into their physiology.

Factors influencing blood tumor marker concentrations in the absence of neoplasia.

BACKGROUND: Tumor markers (TMs) are a heterogeneous group of molecules used in the diagnosis, prognosis and follow-up of cancer patients. During neoplastic differentiation, cells can either directly synthesize or induce the synthesis of TMs, and the release of these molecules into the bloodstream allows their quantification in biological fluids. Although very small concentrations of TMs are usually present in the serum or plasma of healthy subjects, increased concentrations may also be found in the presence of benign diseases or due to technical interference, producing false positive results. MATERIAL AND METHODS AND RESULTS: Our review analyses the causes of false positives described between January 1970 to February 2023 for the TMs most frequently used in clinical practice: α-fetoprotein (AFP), ß2-microglobulin (ß2-M), cancer antigen 15-3 (CA 15-3), cancer antigen CA 19-9 (CA 19-9), cancer antigen CA 72-4 (CA 72-4), cancer antigen 125 (CA 125), carcinoembryonic antigen (CEA), chromogranin A (CgA), choriogonadotropin (hCG), cytokeratin 19 fragment (CYFRA 21-1), neuron-specific enolase (NSE), human epididymis protein 4 (HE4), serum HER2 (sHER2), squamous cell carcinoma antigen (SCCA), protein induced by vitamin K absence-II (PIVKA-II), Pro-gastrin-releasing peptide (Pro-GRP), prostate-specific antigen (PSA), Protein S-100 (S-100) and thyroglobulin (Tg). A total of 247 references were included. CONCLUSIONS: A better understanding of pathophysiological processes and other conditions that affect the concentration of TMs might improve the interpretation of results and their clinical application.

Lipedematous Scalp Occurring in Two Female Siblings: Further Evidence for a Genetic Role.

Introduction: Lipedematous scalp (LS) is a rare disorder characterized by thickening of the adipose subcutaneous scalp layer without associated hair loss. To date, there have been fewer than 100 reported cases of LS. LS occurring in siblings has not been previously reported. Case Presentation: We present a 58-year-old and 63-year-old pair of black Caribbean female siblings with LS. Scalp thickness on ultrasound of the vertex in each case was 12 mm and 11 mm from skin to periosteum, respectively (normal range: 5-6 mm). Histopathological analysis in the younger sibling demonstrated prominent fat, high in the dermis around hair follicles, with follicular distortion and focal perifollicular fibrosis. Co-morbidities in the younger sibling were obesity (body mass index [BMI] 39.0), paranoid schizophrenia, and bipolar disorder; the older sibling was overweight (BMI 26.0) with co-morbidities of hypercholesterolemia, type 2 diabetes mellitus, hypomania, and migraines; both siblings were taking psychiatric medication. Conclusion: We present an unusual case of LS in a pair of female siblings, adding to the limited existing evidence that there may be a genetic role in the pathogenesis of LS. Furthermore, both siblings in this case had psychiatric co-morbidities and were taking psychiatric medication, which have not been previously identified as associations of LS.

Infectious esophagitis in immunocompetent individuals: case series in a tertiary care hospital.

The prevalence of infectious esophagitis in immunocompetent people is low. The main etiological agent is HSV11,2, affecting mainly young men4 with intense odynophagia and dysphagia. It is unknown whether SARS-CoV-2 infection or its vaccine are predisposing factors. The objective is to determine the clinical, diagnostic, endoscopic and therapeutic characteristics of patients diagnosed with viral esophagitis since the beginning of the pandemic.

Variations in tumor growth, intra-individual biological variability, and the interpretation of changes.

OBJECTIVES: The identification of changes in tumor markers (TMs) in cancer patients that indicate response to treatment, stabilization or disease progression is a challenge for laboratory medicine. Several approaches have been proposed: assessing percentage increases, applying discriminant values, and estimating half-life (t1/2) or doubling time (DT). In all of them it is assumed that the TM is a surrogate of the variation in tumor size. In general this variation is time-dependent, but this is not the case of intraindividual biological variability (CVi), which can range from 6 % in CA15-3 to 22 % in CA125. When decisions are made on the basis of DT or t1/2, these values can be affected by the CVi; if it is very large, the growth rate very slow and the period of time between determinations very short, the result obtained for DT may be due mainly to the CVi. The aim of this study is to establish the relationship between the CVi and temporal variables. METHODS: We related equations for calculating DT and t1/2 to the reference change values in tumor markers. RESULTS: The application of the formula obtained allows the calculation of the optimal time between measurements to ensure that the influence of the CVi is minimal in different types of tumors and different scenarios. CONCLUSIONS: Intraindividual variation affects the calculation of DT and t1/2. It is necessary to establish the minimum time between two measurements to ensure that the CVi does not affect their calculation or lead to misinterpretation.

Novel method of removing metals from estuarine water using whole microbial mats.

This study addresses the limited understanding of chromium-microbial mat interactions in estuarine tidal flats. The aims were to evaluate (1) the efficiency of the microbial consortium in Cr(III) removal from seawater; (2) the elemental and mineralogical composition of the microbial mat as a natural system in the Cr removal, (3) the effects of metal on microphytobenthos, and (4) possible interactions of Cr with other metals present in the consortium. Microbial mats were exposed to Cr(III) solutions at different concentrations (2-30 mg Cr/L). Analysis such as metal concentration, organic matter content, chlorophyll a and phaeopigment concentrations, abundance of diatoms and cyanobacteria, SEM-EDS, and XRD were performed. Most of the Cr(III) was deposited, as chromium oxide/hydroxide, on the surface of all microbial mat components. The complete microbial mat, comprising sediments, detritus, EPS, and diverse microorganism communities, exhibited a remarkable capacity to accumulate Cr(III), retaining over 87% in the solution.

Uso del cigarrillo electronico y riesgo de padecer enfermedades respiratorias en adolescentes y adultos jóvenes

Objetivo: Determinar el riesgo de padecer enfermedades respiratorias por el uso del cigarrillo electrónico. Materiales y métodos: Revisión integrativa, basada en el análisis de artículos científicos completos en bases de datos como: PubMed, Scopus y SciELO utilizando el método PRISMA, en el periodo 2018-2023, en los idiomas inglés y español. Resultados: Se obtuvo 95 artículos científicos, de los cuales se excluyeron un total de 75 por no cumplir con los criterios de selección, quedando seleccionados 20 artículos científicos que responden a los objetivos planteados. Conclusiones: Este estudio identificó los riesgos de padecer enfermedades respiratorias por el uso del cigarrillo electrónico, siendo las más relevantes: enfermedad pulmonar obstructiva crónica, neumonía, lesión pulmonar asociada al cigarrillo electrónico o al vapeo, síndrome de distrés respiratorio, hipertensión pulmonar y asma, además de acompañarse de signos y síntomas como infección de las vías aéreas, el desarrollo de enfermedades cardiovasculares, gastrointestinales y el inicio de adicciones. El estudio identificó que el sexo masculino es el predominante en exponerse más al riesgo de enfermedades respiratorias y la edad oscila entre los 14 a 35 años, convirtiéndose en un problema de salud pública que cada año va en aumento.

Objective: To determine the risk of respiratory diseases due to the use of electronic cigarettes. Materials and Methods: Integrative review, based on the analysis of complete scientific articles in databases such as: PubMed, Scopus and SciELO, using the PRISMA method, in the period 2018-2023, in English and Spanish. Results: Of the 95 scientific articles that were obtained, 20 met the selection criteria and were selected to meet the stated objectives. The remaining 75 articles were excluded. Conclusions: This study identi fied the risks of suffering from respiratory diseases associated with the use of electronic cigarettes. The most significant risks include chronic obstructive pulmonary disease, pneumonia, lung injury associated with electronic cigarettes or vaping, respiratory distress syndrome, pulmonary hypertension, and asthma. Symptoms may also include signs and symptoms of respiratory infections, development of cardiovascular and gastrointestinal diseases, and the onset of addiction. The study found that males are more susceptible to respiratory diseases, with the 14-35 age group being particularly affected. This is becoming a growing public health concern.

Objetivo: Determinar o risco de doenças respiratórias devido ao uso de cigarros eletrônicos. Materiais e métodos: Revisão integrativa, baseada na análise de artigos científicos completos em bases de dados como: PubMed, Scopus e SciELO, utilizando o método PRISMA, no período de 2018 a 2023, em inglês e espanhol. Resultados: Foram obtidos 95 artigos científicos, dos quais um total de 75 foram excluídos por não atenderem aos critérios de seleção, restando 20 artigos científicos selecionados que respondem aos objetivos estabelecidos. Conclusões: Este estudo identificou os riscos de doenças respiratórias decorrentes do uso de cigarros eletrônicos, sendo as mais relevantes a doença pulmonar obstrutiva crônica, pneumonia, lesão pulmonar associada ao cigarro eletrônico ou vaping, síndrome do desconforto respiratório, hipertensão pulmonar e asma, além de serem acompanhadas de sinais e sintomas como infecção das vias aéreas, desenvolvimento de doença cardiovascular, doença gastrointestinal e início de dependência. O estudo identificou que o sexo masculino está predominantemente exposto ao risco de doenças respiratórias e a idade varia de 14 a 35 anos, tornando-se um problema de saúde pública que aumenta a cada ano.

Inmunoensayo quimioluminiscente para sífilis en donantes de sangre: ¿Los valores de lectura se correlacionan con el estado de la infección? / Chemiluminescent immunoassay for syphilis in blood donors: do signal strength values correlate with the infection status? / Imunoensaio quimioluminescente para sífilis em doadores de sangue: os valores de leitura estão correlacionados com o estado da infecção?

Resumen El objetivo del trabajo fue comparar el desempeño del tamizaje treponémico y no treponémico en dos períodos próximos en el tiempo en donantes de sangre y analizar la asociación de la intensidad de la señal de la prueba quimioluminiscente (QL) con la reactividad del enzimoinmunoanálisis (ELISA) y la reagina plasmática rápida (RPR). Se realizó el tamizaje con pruebas treponémicas. Se analizó la distribución de los valores de señal/valor de corte (S/CO) obtenidos por QL en función del ELISA y RPR y se evaluó su asociación entre dos grupos de resultados de laboratorio (1) ELISA+/RPR+ y (2): ELISA+/RPR-. Se procesaron 76 794 donaciones voluntarias. Al comparar las medianas entre grupos, se encontró que la relación S/CO de QL fue significativamente mayor para los donantes del Grupo 1 (19,5 vs. 8,10; p<0,001). Se concluye que la intensidad de la señal de la prueba cualitativa QL estaría asociada con la reactividad de la RPR y guardaría relación con el curso de la infección.

Abstract The objective of this work was to compare the performance of treponemal and non-treponemal screening in two periods close in time in blood donors and to analyse the association of the signal strength (signal-to-cutoff, S/ CO) of the chemiluminescent immunoassay (CIA) with the reactivity of the enzymeimmunoassay (EIA) and the rapid plasma reagin (RPR). Donors were screened with treponemal tests. The distribution of the S/CO values obtained by CIA was analysed based on EIA and RPR, and its association was evaluated. Group 1: ELISA+/RPR+ donors and Group 2: ELISA+/RPR-. A total of 76,794 voluntary donations were processed. Comparing the means between groups, it was found that the CIA S/CO ratio was significantly higher for Group 1 donors (19.5 vs. 8.10; p<0.001). In conclusion, the signal strength of the qualitative CIA test would be associated with the reactivity of the RPR and would be related to the course of the infection.

Resumo O objetivo do trabalho foi comparar o desempenho da triagem treponêmica e não treponêmica em dois períodos próximos no tempo em doadores de sangue e analisar a associação da intensidade do sinal da prova quimioluminescente (QL) com a reatividade da análise imunoenzimática (ELISA) e a reagina plasmática rápida (RPR). Foi realizada uma triagem com provas treponêmicas. Foi analisada a distribuição dos valores de sinal/valor de corte (S/CO) obtidos por QL em função da ELISA e RPR, e também a associação entre dois grupos de resultados laboratoriais (1): ELISA+/RPR+ e (2) ELISA+/ RPR-). Foram procesadas 76 794 doações de sangue voluntárias. Ao comparar as medianas entre os grupos, obteve-se que a relação S/CO de QL foi significativamente maior para os doadores de sangue do grupo 1 (19,5 vs. 8,10; p<0,001). Em conclusão, a intensidade do sinal da prova qualitativa QL estaria associada com a reatividade da RPR e guardaria relação com o curso da infecção.

Utility of human epididymis protein 4 in the differential diagnosis of ascites.

BACKGROUND AND AIMS: Human epididymal protein 4 (HE4) may be a useful tool in the differential diagnosis of malignant ascites. The aim of this study was to evaluate the diagnostic utility of HE4 for detecting malignant ascites, taking into account the possible false positives identified with adenosine deaminase (ADA), C-reactive protein (CRP), % polynuclear cells (%PMN) and glomerular filtration rate (eGFR). METHODS: Concentrations of HE4, ADA, %PMN and CRP were determined in 114 samples of peritoneal fluid and creatinine in serum in order to calculate eGFR. RESULTS: Concentrations of HE4 presented significant differences (P = 0.028) in benign [median (interquartile range)] [582(372)] pmol/L) and malignant ascites ([8241(367)] pmol/L. Sensitivity was 21.2% and specificity 100%. Significant differences were also observed for HE4 between tumors of gynecological origin ([3165(8769)] pmol/L) and others ([665(663)] pmol/L), with a sensitivity of 67% and a specificity of 100%. Classifying according to possible false positives (ADA > 45U/L, CRP > 50 mg/L, %PMN > 90 and eGFR < 30 mL/min/1.73 m2) at maximum specificity, a sensitivity of 33.3% was obtained for HE4, with a cut-off point of 2660 pmol/L. Without possible false positives (ADA < 45U/L, CRP < 50 mg/L, %PMN < 90 and eGFR ≥ 30 mL/min/1.73 m2), a sensitivity of 37.7% was obtained at 100% specificity for a cut-off point of 1041 pmol/L. Applying these criteria to the entire group, a sensitivity of 36.4% was obtained at maximum specificity. CONCLUSIONS: HE4 allows the identification of malignant ascites with moderate sensitivity at maximum specificity. HE4 levels can differentiate between tumors of gynecological origin and others. Classification according to possible false positives increases sensitivity without losing specificity.

Diagnostic trajectories of mental disorders in children and adolescents: a cohort study.

Mental disorders in children and adolescents may follow different trajectories, such as remission, change of diagnosis, or addition of two or more comorbid diagnoses, showing a heterotypic pattern. This study aims to describe the main diagnostic trajectories across a broad range of mental disorder diagnostic categories, from childhood to adolescence and from adolescence to young adulthood in a clinical population. A prospective study was conducted among a clinical sample of children and adolescents who were aged 3-17 years at the face-to-face baseline interview. Electronic health records of these participants were reviewed 10 years later. The diagnostic stability over time was examined using the kappa coefficient, and factors associated with stability were explored using simple logistic regression. The study included a sample of 691 participants. The kappa coefficient for diagnostic stability across all diagnoses was 0.574 for the transition from childhood to adulthood, 0.614 from childhood to adolescence, and 0.733 from adolescence to adulthood. Neurodevelopmental diagnoses had the highest stability. Factors associated with higher diagnostic stability included family history of mental disorders, receiving psychopharmacological treatment, and symptom severity at baseline. We found a variable diagnostic stability across different diagnoses and age categories. The different life transitions represent complex periods that should not be overlooked from a clinical standpoint. An appropriate transition from child and adolescent mental health services to adult mental health services may have a positive impact on children and adolescents with mental disorders.

Characterization of Lysobacter enzymogenes B25, a potential biological control agent of plant-parasitic nematodes, and its mode of action.

It is certainly difficult to estimate productivity losses due to the action of phytopathogenic nematodes but it might be about 12 % of world agricultural production. Although there are numerous tools to reduce the effect of these nematodes, there is growing concern about their environmental impact. Lysobacter enzymogenes B25 is an effective biological control agent against plant-parasitic nematodes, showing control over root-knot nematodes (RKN) such as Meloidogyne incognita and Meloidogyne javanica. In this paper, the efficacy of B25 to control RKN infestation in tomato plants (Solanum lycopersicum cv. Durinta) is described. The bacterium was applied 4 times at an average of concentration around 108 CFU/mL showing an efficacy of 50-95 % depending on the population and the pressure of the pathogen. Furthermore, the control activity of B25 was comparable to that of the reference chemical used. L. enzymogenes B25 is hereby characterized, and its mode of action studied, focusing on different mechanisms that include motility, the production of lytic enzymes and secondary metabolites and the induction of plant defenses. The presence of M. incognita increased the twitching motility of B25. In addition, cell-free supernatants obtained after growing B25, in both poor and rich media, showed efficacy in inhibiting RKN egg hatching in vitro. This nematicidal activity was sensitive to high temperatures, suggesting that it is mainly due to extracellular lytic enzymes. The secondary metabolites heat-stable antifungal factor and alteramide A/B were identified in the culture filtrate and their contribution to the nematicidal activity of B25 is discussed. This study points out L. enzymogenes B25 as a promising biocontrol microorganism against nematode infestation of plants and a good candidate to develop a sustainable nematicidal product.

Preliminary assessment of microbial mats in seawater metal remediation.

Microbial mats have a special role in the removal of metals in marine environment. This study aimed to experimentally determine the efficiency of Cr removal from seawater by microbial mats. The effect of Cr on the microphytobenthic community and the influence of an aerated condition on the removal of metal and microorganisms were also considered. Hence, microbial mat samples were subdivided in 4 groups: submerged in Cr (chromium 2 mg/L without aeration), Cr + O2 (chromium 2 mg/L with aeration), SW + O2 (filtered seawater with aeration), and a control: SW (filtered seawater with neither chromium nor aeration). Water and microbial mat subsamples were used to determine Cr concentrations, organic matter content, granulometry, physicochemical parameters, chlorophyll a, phaeopigments, and quantitative analysis of the microphytobenthic community. Cr removal efficiency from seawater was 95% for the Cr treatment and 99% for the Cr + O2 treatment. The abundance of cyanobacteria tended to decrease between the initial and final days of the assay, whereas the opposite trend was observed for diatoms. Two aspects are worth noting in the paper: microbial mats efficiently removed Cr from seawater at a concentration of 2 mg Cr/L and the removal of Cr by microbial mats was more efficient with water aeration.

Geographic variation in the altitudinal migration patterns, body size, oxidative status and exploratory behavior in a neotropical bird.

To cope with life in the mountains, populations of the same species can exhibit substantial variability in their altitudinal migration patterns and phenotypes in response to local weather conditions. Studying such variability can provide valuable insights into how local populations respond to environmental challenges, and this information can be useful for conservation efforts in mountain ecosystems. Here, we used δ2H values of feathers and blood to evaluate latitudinal variation in altitudinal migration patterns and its possible links with body size, oxidative status, and exploratory behavior in 72 individuals of rufous-collared sparrow (Zonotrichia capensis) that breed at low and high elevations in the center (~33°) and south (~38°) of Chile. Our results show that both altitudinal migration patterns and oxidative status were significantly influenced by the latitude of breeding sites, while exploratory behavior was associated with elevation. Notably, we found that fast-explorer birds inhabiting low elevations in central Chile displayed higher levels of oxidative damage than slow-explorer birds. These outcomes underscore the possibility of local adaptations in response to diverse local environmental conditions in the Andes. We discuss the implications of latitude, elevation, and environmental temperature in shaping the observed patterns and highlight the significance of identifying local adaptations in mountain birds for better predicting their response to climate change and other challenges stemming from anthropogenic activities.

PALANTIR: An NFV-Based Security-as-a-Service Approach for Automating Threat Mitigation.

Small and medium enterprises are significantly hampered by cyber-threats as they have inherently limited skills and financial capacities to anticipate, prevent, and handle security incidents. The EU-funded PALANTIR project aims at facilitating the outsourcing of the security supervision to external providers to relieve SMEs/MEs from this burden. However, good practices for the operation of SME/ME assets involve avoiding their exposure to external parties, which requires a tightly defined and timely enforced security policy when resources span across the cloud continuum and need interactions. This paper proposes an innovative architecture extending Network Function Virtualisation to externalise and automate threat mitigation and remediation in cloud, edge, and on-premises environments. Our contributions include an ontology for the decision-making process, a Fault-and-Breach-Management-based remediation policy model, a framework conducting remediation actions, and a set of deployment models adapted to the constraints of cloud, edge, and on-premises environment(s). Finally, we also detail an implementation prototype of the framework serving as evaluation material.

Persistence of Metarhizium brunneum (Ascomycota: Hypocreales) in the Soil Is Affected by Formulation Type as Shown by Strain-Specific DNA Markers.

The genus Metarhizium has an increasingly important role in the development of Integrated Pest Control against Tephritid fruit flies in aerial sprays targeting adults and soil treatments targeting preimaginals. Indeed, the soil is considered the main habitat and reservoir of Metarhizium spp., which may be a plant-beneficial microorganism due to its lifestyle as an endophyte and/or rhizosphere-competent fungus. This key role of Metarhizium spp. for eco-sustainable agriculture highlights the priority of developing proper monitoring tools not only to follow the presence of the fungus in the soil and to correlate it with its performance against Tephritid preimaginals but also for risk assessment studies for patenting and registering biocontrol strains. The present study aimed at understanding the population dynamics of M. brunneum strain EAMb 09/01-Su, which is a candidate strain for olive fruit fly Bactrocera oleae (Rossi, 1790) preimaginal control in the soil, when applied to the soil at the field using different formulations and propagules. For this, strain-specific DNA markers were developed and used to track the levels of EAMb 09/01-Su in the soil of 4 field trials. The fungus persists over 250 days in the soil, and the levels of the fungus remained higher when applied as an oil-dispersion formulation than when applied as a wettable powder or encapsulated microsclerotia. Peak concentrations of EAMb 09/01-Su depend on the exogenous input and weakly on environmental conditions. These results will help us to optimize the application patterns and perform accurate risk assessments during further development of this and other entomopathogenic fungus-based bioinsecticides.

Nivel de ansiedad en adolescentes con sobrepeso u obesidad

Objetivo: Conocer el nivel de ansiedad en los adolescentes con sobrepeso u obesidad. Material y Método: Estudio cuantitativo, no experimental, descriptivo y transversal, realizado entre abril y agosto 2023 en una Unidad Educativa del cantón Ambato, provincia de Tungurahua, Ecuador. De una población de 109 estudiantes, la muestra definitiva fueron 71 adolescentes con sobrepeso y obesidad pertenecientes al Octavo, Noveno y Décimo grado de Educación General Básica (EGB). Para medir la ansiedad se aplicó el cuestionario Beck Anxiety Inventory (BAI) validado y con alto nivel de confiabilidad (Alfa Cronbach: 0,82); para el estado nutricional se midieron la Circunferencia de Cintura (CC) y el Índice de Masa Corporal (IMC) junto a variables demográficas: sexo y edad. Resultados: 54% de sexo masculino, 38% en noveno año de EGB y un nivel moderado de ansiedad. Conclusión: Más de la mitad de los adolescentes presentan sobrepeso u obesidad, evidenciándose predominio del sexo masculino, específicamente en el noveno año de EGB y existe un nivel moderado de ansiedad en la mayoría de la muestra estudiada con mayor frecuencia en el sexo femenino. Es importante que el personal de enfermería eduque a la población sobre todo a los adolescentes sobre los beneficios que otorga a la salud el llevar un estilo de vida saludable.

Objective: To determine the level of anxiety in overweight or obese adolescents. Material and Method: Quantitative, non-experimental, descriptive and cross-sectional study, conducted from April to August 2023, in an educational unit of the canton of Ambato, Province of Tungurahua, Ecuador. From a population of 109 students, the final sample consisted of 71 adolescents with overweight or obesity belonging to the eighth, ninth and tenth grades of General Basic Education (GBS). To measure anxiety, the Beck Anxiety Inventory (BAI) questionnaire was used, which has been validated with high reliability (Cronbach's alpha: 0.82); for nutritional status, waist circumference (WC) and body mass index (BMI) were measured, along with the demographic variables sex and age. Results: 54% male, 38% in the ninth year of GBS and a moderate level of anxiety. Conclusions: More than half of the adolescents are overweight and obese, with a predominance of males, especially in the ninth year of GBS, and there is a moderate level of anxiety in most of the sample studied, with a higher frequency in females. It is important for nursing staff educate the population, especially adolescents, about the health benefits of a healthy lifestyle.

Objetivo: Determinar o nível de ansiedade em adolescentes com sobrepeso ou obesidade. Material e Método: Estudo quantitativo, não experimental, descritivo e transversal, realizado entre abril e agosto de 2023, em uma unidade educacional do cantão de Ambato, província de Tungurahua, Equador. De uma população de 109 estudantes, a amostra final foi composta por 71 adolescentes com sobrepeso ou obesidade pertencentes ao oitavo, nono e décimo anos do Ensino Básico Geral (EGB). Para mensurar a ansiedade foi utilizado o questionário Beck Anxiety Inventory (BAI), que foi validado com alta confiabilidade (alfa de Cronbach: 0,82); para o estado nutricional foram aferidos a circunferência da cintura (CC) e o índice de massa corporal (IMC), além das variáveis demográficas sexo e idade. Resultados: 54% do sexo masculino, 38% no nono ano de EBG e nível moderado de ansiedade. Conclusões: Mais da metade dos adolescentes apresentam excesso de peso e obesidade, com predominância do sexo masculino, sobretudo no nono ano de EGB, e existe um nível moderado de ansiedade na maior parte da amostra estudada, com maior frequência no sexo feminino. E importante que a equipe de enfermagem eduque a população, principalmente os adolescentes, sobre os benefícios para a saúde de um estilo de vida saudável.