Insight into the role of copper-based materials against the coronaviruses MHV-3, a model for SARS-CoV-2, during the COVID-19 pandemic.

Coating high-touch surfaces with inorganic agents, such as metals, appears to be a promising long-term disinfection strategy. However, there is a lack of studies exploring the effectiveness of copper-based products against viruses. In this study, we evaluated the cytotoxicity and virucidal effectiveness of products and materials containing copper against mouse hepatitis virus (MHV-3), a surrogate model for SARS-CoV-2. The results demonstrate that pure CuO and Cu possess activity against the enveloped virus at very low concentrations, ranging from 0.001 to 0.1% (w/v). A greater virucidal efficacy of CuO was found for nanoparticles, which showed activity even against viruses that are more resistant to disinfection such as feline calicivirus (FCV). Most of the evaluated products, with concentrations of Cu or CuO between 0.003 and 15% (w/v), were effective against MHV-3. Cryomicroscopy images of an MHV-3 sample exposed to a CuO-containing surface showed extensive damage to the viral capsid, presumably due to the direct or indirect action of copper ions.

Incursion of Highly Pathogenic Avian Influenza A(H5N1) Clade 2.3.4.4b Virus, Brazil, 2023.

We report 4 highly pathogenic avian influenza A(H5N1) clade 2.3.4.4.b viruses in samples collected during June 2023 from Royal terns and Cabot's terns in Brazil. Phylodynamic analysis revealed viral movement from Peru to Brazil, indicating a concerning spread of this clade along the Atlantic Americas migratory bird flyway.

The complete organellar genomes of the entheogenic plant Psychotria viridis (Rubiaceae), a main component of the ayahuasca brew.

Psychotria viridis (Rubioideae: Rubiaceae), popularly known as chacrona, is commonly found as a shrub in the Amazon region and is well-known to produce psychoactive compounds, such as the N,N-dimethyltryptamine (DMT). Together with the liana Banisteropsis caapi, P. viridis is one of the main components of the Amerindian traditional, entheogenic beverage known as ayahuasca. In this work, we assembled and annotated the organellar genomes (ptDNA and mtDNA), presenting the first genomics resources for this species. The P. viridis ptDNA exhibits 154,106 bp, encoding all known ptDNA gene repertoire found in angiosperms. The Psychotria genus is a complex paraphyletic group, and according to phylogenomic analyses, P. viridis is nested in the Psychotrieae clade. Comparative ptDNA analyses indicate that most Rubiaceae plastomes present conserved ptDNA structures, often showing slight differences at the junction sites of the major four regions (LSC-IR-SSC). For the mitochondrion, assembly graph-based analysis supports a complex mtDNA organization, presenting at least two alternative and circular mitogenomes structures exhibiting two main repeats spanning 24 kb and 749 bp that may symmetrically isomerize the mitogenome into variable arrangements and isoforms. The circular mtDNA sequences (615,370 and 570,344 bp) encode almost all plant mitochondrial genes (except for the ccmC, rps7, rps10, rps14, rps19, rpl2 and rpl16 that appears as pseudogenes, and the absent genes sdh3, rps2, rsp4, rsp8, rps11, rpl6, and rpl10), showing slight variations related to exclusive regions, ptDNA integration, and relics of previous events of LTR-RT integration. The detection of two mitogenomes haplotypes is evidence of heteroplasmy as observed by the complex organization of the mitochondrial genome using graph-based analysis. Taken together, these results elicit the primary insights into the genome biology and evolutionary history of Psychotria viridis and may be used to aid strategies for conservation of this sacred, entheogenic species.

Chromosome Number and Genome Size Evolution in Brasolia and Sobralia (Sobralieae, Orchidaceae).

Despite the clear circumscription of tribe Sobralieae (Orchidaceae), its internal relationships are still dubious. The recently delimited genus Brasolia, based on previous Sobralia species, is now assumed to be paraphyletic, with a third genus, Elleanthus, nested in it. The morphology of these three genera is significantly different, indicating the necessity of new data for a better genera delimitation. Though morphology and molecular data are available, cytogenetics data for Sobralieae is restricted to two Sobralia and one Elleanthus species. Aiming to evaluate the potential of cytogenetic data for Brasolia-Elleanthus-Sobralia genera delimitation, we present chromosome number and genome size data for 21 and 20 species, respectively, and used such data to infer the pattern of karyotype evolution in these genera. The analysis allowed us to infer x = 24 as the base chromosome number and genome size of average 1C-value of 5.0 pg for the common ancestor of Brasolia-Elleanthus-Sobralia. The recurrent descending dysploidy in Sobralieae and the punctual genome upsize suggest a recent diversification in Sobralieae but did not allow differing between Brasolia and Sobralia. However, the basal position of tribe Sobralieae in the subfamily Epidendroideae makes this tribe of interest to further studies clarifying the internal delimitation and pattern of karyotype evolution.

Are chromosome number and genome size associated with habit and environmental niche variables? Insights from the Neotropical orchids.

BACKGROUND AND AIMS: The entangled relationship of chromosome number and genome size with species distribution has been the subject of study for almost a century, but remains an open question due to previous ecological and phylogenetic knowledge constraints. To better address this subject, we used the clade Maxillariinae, a widely distributed and karyotypically known orchid group, as a model system to infer such relationships in a robust methodological framework. METHODS: Based on the literature and new data, we gathered the chromosome number and genome size for 93 and 64 species, respectively. We built a phylogenetic hypothesis and assessed the best macroevolutionary model for both genomic traits. Additionally, we collected together ecological data (preferences for bioclimatic variables, elevation and habit) used as explanatory variables in multivariate phylogenetic models explaining genomic traits. Finally, the impact of polyploidy was estimated by running the analyses with and without polyploids in the sample. KEY RESULTS: The association between genomic and ecological data varied depending on whether polyploids were considered or not. Without polyploids, chromosome number failed to present consistent associations with ecological variables. With polyploids, there was a tendency to waive epiphytism and colonize new habitats outside humid forests. The genome size showed association with ecological variables: without polyploids, genome increase was associated with flexible habits, with higher elevation and with drier summers; with polyploids, genome size increase was associated with colonizing drier environments. CONCLUSIONS: The chromosome number and genome size variations, essential but neglected traits in the ecological niche, are shaped in the Maxillariinae by both neutral and adaptive evolution. Both genomic traits are partially correlated to bioclimatic variables and elevation, even when controlling for phylogenetic constraints. While polyploidy was associated with shifts in the environmental niche, the genome size emerges as a central trait in orchid evolution by the association between small genome size and epiphytism, a key innovation to Neotropical orchid diversification.

Clinical Characteristics and In-Hospital Mortality of Cardiac Arrest Survivors in Brazil: A Large Retrospective Multicenter Cohort Study.

OBJECTIVES: Data on cardiac arrest survivors from developing countries are scarce. This study investigated clinical characteristics associated with in-hospital mortality in resuscitated patients following cardiac arrest in Brazil. DESIGN: Retrospective analysis of prospectively collected data. SETTING: Ninety-two general ICUs from 55 hospitals in Brazil between 2014 and 2015. PATIENTS: Adult patients with cardiac arrest admitted to the ICU. INTERVENTIONS: None. MEASUREMENTS AND MAIN RESULTS: We analyzed 2,296 patients (53% men; median 67 yr (interquartile range, 54-79 yr]). Eight-hundred patients (35%) had a primary admission diagnosis of cardiac arrest suggesting an out-of-hospital cardiac arrest; the remainder occurred after admission, comprising an in-hospital cardiac arrest cohort. Overall, in-hospital mortality was 83%, with only 6% undergoing withholding/withdrawal-of-life support. Random-effects multivariable Cox regression was used to assess associations with survival. After adjusting for age, sex, and severity scores, mortality was associated with shock (adjusted odds ratio, 1.25 [95% CI, 1.11-1.39]; p < 0.001), temperature dysregulation (adjusted odds ratio for normothermia, 0.85 [95% CI, 0.76-0.95]; p = 0.007), increased lactate levels above 4 mmol/L (adjusted odds ratio, 1.33 [95% CI, 1.1-1.6; p = 0.009), and surgical or cardiac cases (adjusted odds ratio, 0.72 [95% CI, 0.6-0.86]; p = 0.002). In addition, survival was better in patients with probable out-of-hospital cardiac arrest, unless ICU admission was delayed (adjusted odds ratio for interaction, 1.63 [95% CI, 1.21-2.21]; p = 004). CONCLUSIONS: In a large multicenter cardiac arrest cohort from Brazil, we found a high mortality rate and infrequent withholding/withdrawal of life support. We also identified patient profiles associated with worse survival, such as those with shock/hypoperfusion and arrest secondary to nonsurgical admission diagnoses. Our findings unveil opportunities to improve postarrest care in developing countries, such as prompt ICU admission, expansion of the use of targeted temperature management, and implementation of shock reversal strategies (i.e., early coronary angiography), according to modern guidelines recommendations.

Coding-Complete Genome Sequence of Murine Hepatitis Virus Strain 3 from Brazil.

Murine hepatitis virus (MHV) strain 3, one of the most important inducers of viral hepatitis, has been extensively studied as an organism to gain a better understanding of coronavirus biology and pathogenesis. Only one sequence is currently available. Another representative isolate has now been sequenced and added to the arsenal of MHV-3 variants.

Polyploidy and high environmental tolerance increase the invasive success of plants.

Ploidy level and genome size (GS) could affect the invasive capacity of plants, although these parameters can be contradictory. While small GS seems to favor dispersion, polyploidy-which increases the GS-also seems to favor it. Using a phylogenetic path analysis, we evaluated the effects of both factors on the environmental tolerance and invasive success of plants. We selected 99 invasive plant species from public online databases and gathered information about invasive capacity (number of non-original countries in which each species occurs), tolerance to environmental factors, ploidy level, and GS. The invasive capacity varied depending on the ploidy level and tolerance to environmental factors. Polyploids and species with increased tolerance to elevated temperatures and rainfall values exhibited high invasive capacity. We found no evidence that GS affects the invasive capacity of plants. We suggest that the genetic variability provided by polyploidization has a positive impact on plant competitiveness, which may ultimately lead to an increased ability to colonize new environments. In a global warming scenario, integrative approaches using phenotypic, genetic, epigenetic, and ecological traits should be a productive route to unveil the aspects of invasive plants.

Elderly patients with cancer admitted to intensive care unit: A multicenter study in a middle-income country.

BACKGROUND: Very elderly critically ill patients (ie, those older than 75 or 80 years) are an increasing population in intensive care units. However, patients with cancer have encompassed only a minority in epidemiological studies of very old critically-ill patients. We aimed to describe clinical characteristics and identify factors associated with hospital mortality in a cohort of patients aged 80 or older with cancer admitted to intensive care units (ICUs). METHODS: This was a retrospective cohort study in 94 ICUs in Brazil. We included patients aged 80 years or older with active cancer who had an unplanned admission. We performed a mixed effect logistic regression model to identify variables independently associated with hospital mortality. RESULTS: Of 4604 included patients, 1807 (39.2%) died in hospital. Solid metastatic (OR = 2.46; CI 95%, 2.01-3.00), hematological cancer (OR = 2.32; CI 95%, 1.75-3.09), moderate/severe performance status impairment (OR = 1.59; CI 95%, 1.33-1.90) and use of vasopressors (OR = 4.74; CI 95%, 3.88-5.79), mechanical ventilation (OR = 1.54; CI 95%, 1.25-1.89) and renal replacement (OR = 1.81; CI 95%, 1.29-2.55) therapy were independently associated with increased hospital mortality. Emergency surgical admissions were associated with lower mortality compared to medical admissions (OR = 0.71; CI 95%, 0.52-0.96). CONCLUSIONS: Hospital mortality rate in very elderly critically ill patients with cancer with unplanned ICU admissions are lower than expected a priori. Cancer characteristics, performance status impairment and acute organ dysfunctions are associated with increased mortality.

Characteristics and short-term outcomes of patients with esophageal cancer with unplanned intensive care unit admissions: a retrospective cohort study. / Características e desfechos em curto prazo de pacientes com câncer esofágico em admissões não planejadas a unidades de terapia intensiva: um estudo de coorte retrospectiva.

OBJECTIVE: To depict the clinical presentation and outcomes of a cohort of critically ill patients with esophageal cancer. METHODS: We carried out a multicenter retrospective study that included patients with esophageal cancer admitted to intensive care units with acute illness between September 2009 and December 2017. We collected the demographic and clinical characteristics of all included patients, as well as organ-support measures and hospital outcomes. We performed logistic regression analysis to identify independent factors associated with in-hospital mortality. RESULTS: Of 226 patients included in the study, 131 (58.0%) patients died before hospital discharge. Squamous cell carcinoma was more frequent than adenocarcinoma, and 124 (54.9%) patients had metastatic cancer. The main reasons for admission were sepsis/septic shock and acute respiratory failure. Mechanical ventilation (OR = 6.18; 95%CI 2.86 - 13.35) and metastatic disease (OR = 7.10; 95%CI 3.35 - 15.05) were independently associated with in-hospital mortality. CONCLUSION: In this cohort of patients with esophageal cancer admitted to intensive care units with acute illness, the in-hospital mortality rate was very high. The requirement for invasive mechanical ventilation and metastatic disease were independent prognostic factors and should be considered in discussions about the short-term outcomes of these patients.

Características e desfechos em curto prazo de pacientes com câncer esofágico em admissões não planejadas a unidades de terapia intensiva: um estudo de coorte retrospectiva / Characteristics and short-term outcomes of patients with esophageal cancer with unplanned intensive care unit admissions: a retrospective cohort study

RESUMO Objetivo: Mostrar o quadro clínico e os desfechos de uma coorte de pacientes críticos com câncer esofágico. Métodos: Conduzimos um estudo multicêntrico retrospectivo que incluiu pacientes com câncer esofágico admitidos a unidades de terapia intensiva em razão de doença aguda entre setembro de 2009 e dezembro de 2017. Colhemos os dados demográficos e as características clínicas de todos os pacientes incluídos, assim como as medidas de suporte a órgãos e os desfechos no hospital. Realizamos uma análise de regressão logística para identificar os fatores associados de forma independente com mortalidade hospitalar. Resultados: Dentre os 226 pacientes incluídos no estudo, 131 (58,0%) faleceram antes de receber alta hospitalar. O carcinoma espinocelular foi mais frequente do que o adenocarcinoma, e 124 (54,9%) pacientes tinham câncer metastático. As principais razões para admissão foram sepse/choque séptico e insuficiência respiratória aguda. Uso de ventilação mecânica (RC = 6,18; IC95% 2,86 - 13,35) e doença metastática (RC = 7,10; IC95% 3,35 - 15,05) tiveram associação independente com mortalidade hospitalar. Conclusão: Nesta coorte de pacientes com câncer esofágico admitidos à unidades de terapia intensiva em razão de doença aguda, a taxa de mortalidade hospitalar foi muito elevada. A necessidade de utilizar ventilação mecânica invasiva e a presença de doença metastática foram fatores independentes de prognóstico e devem ser levados em conta nas discussões a respeito dos desfechos destes pacientes em curto prazo.

ABSTRACT Objective: To depict the clinical presentation and outcomes of a cohort of critically ill patients with esophageal cancer. Methods: We carried out a multicenter retrospective study that included patients with esophageal cancer admitted to intensive care units with acute illness between September 2009 and December 2017. We collected the demographic and clinical characteristics of all included patients, as well as organ-support measures and hospital outcomes. We performed logistic regression analysis to identify independent factors associated with in-hospital mortality. Results: Of 226 patients included in the study, 131 (58.0%) patients died before hospital discharge. Squamous cell carcinoma was more frequent than adenocarcinoma, and 124 (54.9%) patients had metastatic cancer. The main reasons for admission were sepsis/septic shock and acute respiratory failure. Mechanical ventilation (OR = 6.18; 95%CI 2.86 - 13.35) and metastatic disease (OR = 7.10; 95%CI 3.35 - 15.05) were independently associated with in-hospital mortality. Conclusion: In this cohort of patients with esophageal cancer admitted to intensive care units with acute illness, the in-hospital mortality rate was very high. The requirement for invasive mechanical ventilation and metastatic disease were independent prognostic factors and should be considered in discussions about the short-term outcomes of these patients.

Epstein-Barr virus induces morphological and molecular changes in thyroid neoplastic cells.

Although the evolution of differentiated thyroid cancer (DTC) is usually indolent, some tumors grow fast, metastasize, and may be fatal. Viruses have been associated with many human tumors, especially the Epstein-Barr virus (EBV), which shows a high viral load in DTC. In order to evaluate the ability of the virus to cause morphological and molecular changes in neoplastic thyroid cell lines TPC-1, BCPAP, and 8505C, a viral adaptation was performed for the analysis of EBV cytopathic effect (CPE), viral kinetics and gene expression analysis of oncogenes KRAS, NRAS, HRAS, and TP53. Comparison of inoculated cells with non-inoculated control cells showed that all tumor cell lines were permissive to the virus. The virus caused CPE in the TPC-1 and 8505C, but not in BCPAP cells. Viral kinetic was similar in both BCPAP and 8505C with a point of eclipse at 24 h post infection. TPC-1 cell line displayed a decreasing growth curve, with highest viral load right after inoculation, which decreased over time. There was hyperexpression of TP53 and NRAS in BCPAP cell (p = 0.012 and p = 0.0344, respectively). The 8505C cell line presented NRAS hyperexpression (p = 0.0255), but lower TP53 expression (p = 0.0274). We concluded that neoplastic thyroid cell lines are permissive to EBV that the virus presents different viral kinetic patterns in different cell lines and produces a CPE on both well-differentiated and undifferentiated thyroid cell lines. We also demonstrated that EBV interferes in oncogene expression in thyroid neoplastic cell lines, suggesting that these effects could be related to different tumor progression patterns.

Tecnologias em saúde e a produção de cuidados a pessoas que sofrem do coração / Technologies and Nursing Care Production for Heart Sufferers / Tecnologías y producción de cuidados de enfermería para los enfermos cardíacos

Esta pesquisa teve como objetivo cartografar a produção de cuidados da equipe de enfermagem a usuários que têm o coração em tratamento, em um hospital especializado do estado de São Paulo. O método escolhido foi o da cartografia, sob o referencial teórico da esquizoanálise. Os dados foram coletados por meio da observação participante, que possibilitou mapear o cuidado produzido pela equipe de enfermagem durante o caminhar da pesquisa. Pelas lentes cartográficas, avistaram-se mapas que revelaram um cuidado criativo, permeado por múltiplas tecnologias, emoções, subjetividades, afetos, ressentimentos e potencialidades. Observou-se que há uma produção de cuidados entre os profissionais de enfermagem junto ao paciente que sofre do coração, e neste cuidado há múltiplos fatores envolvidos, físicos, psíquicos, sociais, e que em um serviço de alta complexidade, os profissionais se apoiam em múltiplas tecnologias, articulando-as para promover um cuidado efetivo e individualizado.(AU)

This research aimed to map the care production of the nursing staff to users who have their heart in treatment, in a specialized hospital in the state of São Paulo. The method chosen was that of cartography, under the theoretical framework of schizoanalysis. Data were collected through participant observation, which made it possible to map the care produced by the nursing team during the research. Through the cartographic lenses, maps were revealed that revealed a creative care, permeated by multiple technologies, emotions, subjectivities, affections, resentments and potentialities. It was observed that there is a production of care among nursing professionals with the patient suffering from the heart, and in this care there are multiple factors involved, physical, mental, social, and that in a highly complex service, professionals rely on technologies, articulating them to promote effective and individualized care.(AU)

Esta investigación tuvo como objetivo mapear la producción de atención del personal de enfermería a los usuarios que tienen su corazón en tratamiento, en un hospital especializado en el estado de São Paulo. El método elegido fue el de cartografía, bajo el marco teórico del esquizoanálisis. Los datos fueron recolectados a través de la observación participante, lo que permitió mapear la atención producida por el equipo de enfermería durante la investigación. A través de las lentes cartográficas, se revelaron mapas que revelaron una atención creativa, impregnada de múltiples tecnologías, emociones, subjetividades, afectos, resentimientos y potencialidades. Se observó que existe una producción de atención entre los profesionales de enfermería con el paciente que sufre del corazón, y en esta atención hay múltiples factores involucrados, físicos, mentales, sociales y que en un servicio altamente complejo, los profesionales confían tecnologías, articulándolas para promover una atención eficaz e individualizada.(AU)

The Terrestrial Carnivorous Plant Utricularia reniformis Sheds Light on Environmental and Life-Form Genome Plasticity.

Utricularia belongs to Lentibulariaceae, a widespread family of carnivorous plants that possess ultra-small and highly dynamic nuclear genomes. It has been shown that the Lentibulariaceae genomes have been shaped by transposable elements expansion and loss, and multiple rounds of whole-genome duplications (WGD), making the family a platform for evolutionary and comparative genomics studies. To explore the evolution of Utricularia, we estimated the chromosome number and genome size, as well as sequenced the terrestrial bladderwort Utricularia reniformis (2n = 40, 1C = 317.1-Mpb). Here, we report a high quality 304 Mb draft genome, with a scaffold NG50 of 466-Kb, a BUSCO completeness of 87.8%, and 42,582 predicted genes. Compared to the smaller and aquatic U. gibba genome (101 Mb) that has a 32% repetitive sequence, the U. reniformis genome is highly repetitive (56%). The structural differences between the two genomes are the result of distinct fractionation and rearrangements after WGD, and massive proliferation of LTR-retrotransposons. Moreover, GO enrichment analyses suggest an ongoing gene birth-death-innovation process occurring among the tandem duplicated genes, shaping the evolution of carnivory-associated functions. We also identified unique patterns of developmentally related genes that support the terrestrial life-form and body plan of U. reniformis. Collectively, our results provided additional insights into the evolution of the plastic and specialized Lentibulariaceae genomes.

Quality assessment of adult intensive care services: application of a tool adjusted to the reality of low-income countries. / Avaliação da qualidade de serviços de medicina intensiva adulto: aplicação de ferramenta ajustada à realidade de países de baixa renda.

OBJECTIVE: To assess the quality of adult intensive care units. METHODS: This population-based, cross-sectional, observational, analytical study evaluated management type in Maranhão, Brazil. An assessment instrument was applied that assigned scores to each service (maximum 124 points). The units were categorized as insufficient (< 50% of the maximum score), typical (≥ 50% and <80% of the maximum score), or sufficient (≥ 80% of the maximum score). RESULTS: Of the 26 intensive care units in Maranhão, 23 were evaluated; 15 (65.2%) were located in the state capital, and 14 (60.9%) were public. The mean final score was 67.2 (54.2% of the maximum). The worst performance was observed with regard to processes (50.9%) in the units located outside the capital (p = 0.037) and for hospitals with 68 beds or fewer (p = 0.027). The result of the assessment categorized services as a function of the overall total points earned. Specifically, 8 (34.8%) services were assessed as insufficient, 13 (56.5%) were assessed as typical, and 2 (8.7%) were assessed as sufficient. CONCLUSION: The majority of the intensive care units in this study were assessed as typical. These services must be better qualified. The priorities are the processes of the units located outside the capital and in small hospitals.

OBJETIVO: Avaliar a qualidade de unidades de terapia intensiva adulto. MÉTODOS: Estudo populacional, transversal, observacional, analítico, do tipo avaliação para gestão, no Estado do Maranhão. Um instrumento de avaliação foi aplicado, atribuindo pontuações para cada serviço (máximo 124). As unidades foram categorizadas como insuficientes (< 50% da pontuação máxima), regulares (≥ 50% e < 80% da pontuação máxima) ou suficientes (≥ 80% da pontuação máxima). RESULTADOS: Das 26 unidades de terapia intensiva do Estado, 23 foram avaliadas; 15 (65,2%) estavam localizadas na capital, e 14 (60,9%) eram públicas. A pontuação final média foi de 67,2 (54,2% do máximo possível). O pior desempenho ocorreu nos processos (50,9%), nas unidades fora da capital (p = 0,037) e em hospitais com número de leitos ≤ 68 (p = 0,027). O resultado da avaliação consistiu na categorização dos serviços em função do total geral de pontos alcançados, a saber: 8 (34,8%) serviços receberam avaliação insuficiente, 13 (56,5%) regular e 2 (8,7%) suficiente. CONCLUSÃO: A maioria das unidades do estudo recebeu avaliação regular. Tais serviços necessitam ser melhor qualificados. As prioridades são os processos de unidades localizadas fora da capital e em hospitais de pequeno porte.

Avaliação da qualidade de serviços de medicina intensiva adulto: aplicação de ferramenta ajustada à realidade de países de baixa renda / Quality assessment of adult intensive care services: application of a tool adjusted to the reality of low-income countries

RESUMO Objetivo: Avaliar a qualidade de unidades de terapia intensiva adulto. Métodos: Estudo populacional, transversal, observacional, analítico, do tipo avaliação para gestão, no Estado do Maranhão. Um instrumento de avaliação foi aplicado, atribuindo pontuações para cada serviço (máximo 124). As unidades foram categorizadas como insuficientes (< 50% da pontuação máxima), regulares (≥ 50% e < 80% da pontuação máxima) ou suficientes (≥ 80% da pontuação máxima). Resultados: Das 26 unidades de terapia intensiva do Estado, 23 foram avaliadas; 15 (65,2%) estavam localizadas na capital, e 14 (60,9%) eram públicas. A pontuação final média foi de 67,2 (54,2% do máximo possível). O pior desempenho ocorreu nos processos (50,9%), nas unidades fora da capital (p = 0,037) e em hospitais com número de leitos ≤ 68 (p = 0,027). O resultado da avaliação consistiu na categorização dos serviços em função do total geral de pontos alcançados, a saber: 8 (34,8%) serviços receberam avaliação insuficiente, 13 (56,5%) regular e 2 (8,7%) suficiente. Conclusão: A maioria das unidades do estudo recebeu avaliação regular. Tais serviços necessitam ser melhor qualificados. As prioridades são os processos de unidades localizadas fora da capital e em hospitais de pequeno porte.

ABSTRACT Objective: To assess the quality of adult intensive care units. Methods: This population-based, cross-sectional, observational, analytical study evaluated management type in Maranhão, Brazil. An assessment instrument was applied that assigned scores to each service (maximum 124 points). The units were categorized as insufficient (< 50% of the maximum score), typical (≥ 50% and <80% of the maximum score), or sufficient (≥ 80% of the maximum score). Results: Of the 26 intensive care units in Maranhão, 23 were evaluated; 15 (65.2%) were located in the state capital, and 14 (60.9%) were public. The mean final score was 67.2 (54.2% of the maximum). The worst performance was observed with regard to processes (50.9%) in the units located outside the capital (p = 0.037) and for hospitals with 68 beds or fewer (p = 0.027). The result of the assessment categorized services as a function of the overall total points earned. Specifically, 8 (34.8%) services were assessed as insufficient, 13 (56.5%) were assessed as typical, and 2 (8.7%) were assessed as sufficient. Conclusion: The majority of the intensive care units in this study were assessed as typical. These services must be better qualified. The priorities are the processes of the units located outside the capital and in small hospitals.

Das provas operatórias à construção de estruturas cognitivas: um estudo de caso em psicopedagogia / From operational tests to the cognitive structures construction: A case study in Psychopedagogy

O artigo apresenta um estudo de caso com foco nas provas operatórias de Jean Piaget utilizadas numa avaliação psicopedagógica com uma criança de 9 anos. A análise das provas operatórias apontou que ela apresentava um ritmo de desenvolvimento do raciocínio mais lento do que a média. Apresentamos, então, propostas de intervenção psicopedagógica, que tiveram por base as teorias de Jean Piaget e de Vygotsky, visando contribuir no processo de desenvolvimento do pensamento lógico de sujeitos que apresentam dificuldades para aprender, como é o caso do sujeito avaliado.

This paper presents a case study focused in the operational tests of Jean Piaget used in a psychopedagogical evaluation of a 9-years-old child. The analysis of the operational tests showed that the young boy exhibited a slower reasoning rhythm compared to the average. Therefore, we presented psychopedagogical intervention proposals, which were based on Jean Piaget and Vygotsky theories, aiming to contribute to the development process of the reasoning logical of individuals who exhibit learning disabilities, as occurs to the person evaluated in this study.

Intrachromosomal karyotype asymmetry in Orchidaceae

Abstract The asymmetry indexes have helped cytotaxonomists to interpret and classify plant karyotypes for species delimitation efforts. However, there is no consensus about the best method to calculate the intrachromosomal asymmetry. The present study aimed to compare different intrachromosomal asymmetry indexes in order to indicate which are more efficient for the estimation of asymmetry in different groups of orchids. Besides, we aimed to compare our results with the Orchidaceae phylogenetic proposal to test the hypothesis of Stebbins (1971). Through a literature review, karyotypes were selected and analyzed comparatively with ideal karyotypes in a cluster analysis. All karyotypes showed some level of interchromosomal asymmetry, ranging from slightly asymmetric to moderately asymmetric. The five tested intrachromosomal asymmetry indexes indicated Sarcoglottis grandiflora as the species with the most symmetrical karyotype and Christensonella pachyphylla with the most asymmetrical karyotype. In the cluster analysis, the largest number of species were grouped with the intermediary ideal karyotypes B or C. Considering our results, we recommend the combined use of at least two indexes, especially Ask% or A1 with Syi, for cytotaxonomic analysis in groups of orchids. In an evolutionary perspective, our results support Stebbins' hypothesis that asymmetric karyotypes derive from a symmetric karyotypes.