Novel Criteria to Provide a Locality/Normality Degree in Molecules and Their Relevance in Physical Chemistry.

In contrast to the traditional analysis of molecules using local mode behavior, where the degree of locality is given through a function in terms of Morse potential parameters, new criteria for locality/normality (LN) suitable for application to any molecular system are proposed. The approach is based on analysis of the connection between the algebraic normal and local mode representations. It is shown that both descriptions are equivalent as long as the polyad (total number of quanta) in the local representation is not conserved. The constraint of a local polyad conservation naturally provides a criterion for assigning an LN degree in quantitative form, without an analogue in configuration space. The correlation between the different parameters reveals the physical properties of molecules. A clear connection between the LN degree (based on the fundamentals) and spectroscopic properties is also presented, suggesting a promising approach for identifying mixtures of isotopologues.

The Geometry of Normal Tissue and Cancer Gene Expression Manifolds.

A recent paper shows that in gene expression space the manifold spanned by normal tissues and the manifold spanned by the corresponding tumors are disjoint. The statement is based on a two-dimensional projection of gene expression data. In the present paper, we show that, for the multi-dimensional vectors defining the centers of cloud samples: 1. The closest tumor to a given normal tissue is the tumor developed in that tissue, 2. Two normal tissues define quasi-orthogonal directions, 3. A tumor may have a projection onto its corresponding normal tissue, but it is quasi-orthogonal to all other normal tissues, and 4. The cancer manifold is roughly obtained by translating the normal tissue manifold along an orthogonal direction defined by a global cancer progression axis. These geometrical properties add a new characterization of normal tissues and tumors and may have biological significance. Indeed, normal tissues at the vertices of a high-dimensional simplex could indicate genotype optimization for given tissue functions, and a way of avoiding errors in embryonary development. On the other hand, the cancer progression axis could define relevant pan-cancer genes and seems to be consistent with the atavistic theory of tumors.

Clinical algorithms for the monitoring and management of spontaneous, uncomplicated labour and childbirth.

AIM: To develop evidence-based clinical algorithms for the assessment and management of spontaneous, uncomplicated labour and vaginal birth. POPULATION: Pregnant women at any stage of labour, with singleton, term pregnancies considered to be at low risk of developing complications. SETTING: Health facilities in low- and middle-income countries. SEARCH STRATEGY: We searched for relevant published algorithms, guidelines, systematic reviews and primary research studies on Cochrane Library, PubMed, and Google on terms related to spontaneous, uncomplicated labour and childbirth up to 01 June 2023. CASE SCENARIOS: Three case scenarios were developed to cover assessments and management for spontaneous, uncomplicated first, second and third stage of labour. The algorithms provide pathways for definition, assessments, diagnosis, and links to other algorithms in this series for management of complications. CONCLUSIONS: We have developed three clinical algorithms to support evidence-based decision making during spontaneous, uncomplicated labour and vaginal birth. These algorithms may help guide health care staff to institute respectful care, appropriate interventions where needed, and potentially reduce the unnecessary use of interventions during labour and childbirth.

Injusticias epistémicas normalizadas y restricción de la agencia de las personas con discapacidad

Las injusticias epistémicas son aquellas formas de trato injusto que se relacionan con la producción, trasmisión o utilización del conocimiento por parte de los sujetos. El encuadre ético-epistémico y socio-epistémico proporcionado por estas injusticias se vincula con temas que atraviesan las principales tradiciones filosóficas como el pragmatismo, la fenomenología y la teoría crítica. Estas injusticias se interrelacionan, además, con movimientos sociales e intelectuales como el feminismo, la teoría crítica de la raza, los estudios críticos de la discapacidad y las epistemologías decolonizadoras. Sin embargo, existe un cuestionamiento a que las personas con discapacidad no han sido suficientemente abordadas. El presente artículo se posiciona en los debates actuales sobre las injusticias epistémicas y la discapacidad, y tiene como propósito aportar el concepto de "injusticias epistémicas normalizadas". Partiendo de la constatación de las formas en que se reconocen opresivamente los sujetos con discapacidad, como alejados de la "norma", establece que existen injusticias epistémicas asociadas con esta identificación. Propone que las injusticias epistémicas normalizadas ocurren en la intersección de dos ámbitos: un sistema hermenéutico capacitista y una agencia epistémica restringida en la que se producen al menos tres tipos de configuraciones: no agencia, agencias epistémicas disminuidas y agencias epistémicas en resistencia. Pensar las injusticias epistémicas considerando el peso de la "normalidad" en la constitución como sujetos de las personas con discapacidad permite reconocer una situación crítica de exclusión epistémica para algunas personas, mientras que otras resisten y luchan por ser comprendidas en los recursos hermenéuticos colectivos.

Epistemic injustices refer to those forms of unfair treatment that are related to the production, transmission, or use of knowledge by the subjects. The ethical-epistemic and socio-epistemic framework provided by these injustices is linked to themes that cross the main philosophical traditions such as pragmatism, phenomenology, and critical theory. These injustices are further intertwined with social and intellectual movements such as feminism, critical race theory, critical disability studies, and decolonizing epistemologies. However, there is a question that people with disabilities have not been sufficiently addressed. This article is positioned in the current debates on epistemic injustices and disability, and its purpose is to contribute the concept of "normalized epistemic injustices". Starting from the verification of the ways in which subjects with disabilities are oppressively recognized, as far from the "norm", it establishes that there are epistemic injustices associated with this identification. It proposes that normalized epistemic injustices occur at the intersection of two realms: a capacitist hermeneutic system and a constrained epistemic agency where at least three types of configurations are produced: non-agency; diminished epistemic agencies and epistemic agencies in resistance. Thinking about epistemic injustices considering the weight of "normality" in the constitution as subjects of people with disabilities allows us to recognize a critical situation of epistemic exclusion for some people, while others resist and fight to be understood in collective hermeneutical resources.

As injustiças epistêmicas referem-se àquelas formas de tratamento injusto que estão relacionadas à produção, transmissão ou uso do conhecimento pelos sujeitos. O enquadramento ético-epistêmico e socioepistêmico proporcionado por essas injustiças está vinculado a temas que atravessam as principais tradições filosóficas como o pragmatismo, a fenomenologia e a teoria crítica. Essas injustiças estão ainda mais entrelaçadas com movimentos sociais e intelectuais como o feminismo, a teoria crítica da raça, os estudos críticos da deficiência e as epistemologias descolonizadoras. No entanto, há uma questão de que as pessoas com deficiência não foram suficientemente abordadas. Este artigo se posiciona nos debates atuais sobre injustiças epistêmicas e deficiência, e seu objetivo é contribuir com o conceito de "injustiças epistêmicas normalizadas". A partir da verificação das formas como os sujeitos com deficiência são opressivamente reconhecidos, como distantes da "norma", constata-se que existem injustiças epistêmicas associadas a essa identificação. Propõe que injustiças epistêmicas normalizadas ocorrem na interseção de dois domínios: um sistema hermenêutico capacitista e uma agência epistêmica restrita onde pelo menos três tipos de configurações são produzidas: não-agência; agências epistêmicas diminuídas e agências epistêmicas em resistência. Pensar as injustiças epistêmicas considerando o peso da "normalidade" na constituição como sujeitos das pessoas com deficiência permite reconhecer uma situação crítica de exclusão epistêmica para algumas pessoas, enquanto outras resistem e lutam para serem compreendidas em recursos hermenêuticos coletivos.

Análise da efetividade do grupo de gestantes na modalidade online como ferramenta de aprendizagem gravídico puerperaleral / Analysis of the effectiveness of the online pregnancy group as a pregnancy and puerperal learning tool

Objetivo: Analisar a efetividade do grupo de gestantes na modalidade online como ferramenta de aprendizagem. Método: Estudo epidemiológico, transversal, observacional e descritivo. As participantes foram pacientes que participaram do grupo de gestantes, em um centro de parto normal, na modalidade presencial ou online. Os dados foram coletados através de um questionário estruturado, contendo 16 perguntas fechadas, acerca dos assuntos abordados no curso. Resultado: Verificamos a predominância de maiores acertos de questões no grupo presencial em comparação ao grupo online. Porém, observou-se que a média de acertos do grupo online gira em torno de 12,44 de um total de 16 questões, o que é muito efetivo. Conclusão: O grupo de gestante na modalidade online, se mostra como uma ferramenta efetiva no processo de ensino-aprendizagem, na medida que os ensinamentos e compartilhamentos de informações são absorvidos em sua maioria pelas gestantes.(AU)

Objective: to identify improvement through risk management applied to the acquisition and distribution processes of NPH human insulins. Method: The study was carried out in stages: in the 1st moment, meetings were held (Brainstorming) and in the 2nd moment, an electronic form was elaborated in the form of a questionnaire, showing the risk "events" with the weights inherent to the probability and impact they generated the risk inherent in the acquisition and distribution processes of NPH and Regular human insulins by the Ministry of Health. Results: Considering the processes, there was a higher incidence of medium risks. No very low risk was indicated, no extreme risk was identified and only 02 (two) high risks were presented. Conclusion: The risk management of the aforementioned study is an improvement tool for the processes of acquisition and distribution of NPH and Regular human insulins by the Ministry of Health.(AU)

Objetivo: identificar la mejora a través de la gestión de riesgos aplicada a los procesos de adquisición y distribución de insulinas humanas NPH. Método: El estudio se realizó por etapas: en el 1er momento se realizaron reuniones (Brainstorming) y en el 2do momento se elaboró un formulario electrónico en forma de cuestionario, mostrando los "eventos" de riesgo con los pesos inherentes a la probabilidad e impacto que generaron los riesgos inherentes a los procesos de adquisición y distribución de insulinas humanas NPH y Regular por parte del Ministerio de Salud. Resultados: Considerando los procesos, hubo una mayor incidencia de riesgos medios. No se indicó riesgo muy bajo, no se identificó riesgo extremo y solo se presentaron 02 (dos) riesgos altos. Conclusión: La gestión de riesgos del mencionado estudio es una herramienta de mejora para los procesos de adquisición y distribución de insulina humana NPH y Regular por parte del Ministerio de Salud.(AU)

Partos y cesáreas en edad de riesgo en hospitales del Maule desde 2017 a 2021 / Births and cesarean sections at risk age in Maule hospitals from 2017 to 2021

Pregnancy, despite being a physiological process, can lead to morbidity and mortality, which is increased at risk ages, defined as younger or equal to15 years and older or equal to 35 years. For an adequate approach it is necessary to know the local reality of the population, therefore, the objective of this study is to describe and analyze the discharges of births and cesarean sections at risk age in the Maule Region from 2017 to 2021 using the database collected from the Biostatistics Unit of the Maule Health Service, which includes the hospitals of the region. Within the observed period, a total of 30,599 deliveries and cesarean sections were studied, being these a total of 5,581 at risk age, of which 0.65% corresponds to women younger or equal to 15 years and 17.57% to women older or equal to 35 years. There is a downward tendency in births in general, mostly evidenced in less or equal to 15 years, and on the contrary, a rise in births and cesarean sections of more or equal to 35 years, differing with the statistics at the country level. The tendency of increasing maternal age of pregnancies in the Maule region and its consequences are a fundamental factor when planning new public policies, so we consider it of vital importance to promote research and update the evidence, with a focus on the local population.

El embarazo a pesar de ser un proceso fisiológico puede conllevar morbimortalidad, la cual se acrecienta en edades de riesgo, definida como menor o igual a 15 años y mayor o igual a 35 años. Para el adecuado enfrentamiento se necesita conocer la realidad local, por ello, el objetivo de este estudio es describir y analizar los egresos de partos y cesáreas en edad de riesgo en la Región del Maule desde el año 2017 a 2021 utilizando la base de datos recogida desde la Unidad de Bioestadística del Servicio de Salud Maule, la cual incluye los hospitales de la región. Dentro del periodo observado se estudió un total de 30.599 partos y cesáreas, siendo estos un total de 5.581 en edad de riesgo, de los cuales 0.65% corresponde a mujeres menores o igual a 15 años y 17.57% a mujeres mayores o igual a 35 años. Existe una tendencia a la baja de los nacimientos en general, mayormente evidenciado en menores o igual a 15 años, y por el contrario, un alza en los partos y cesáreas de mayores o igual a 35 años, difiriendo con las estadísticas a nivel país. El aumento de la edad materna de los embarazos en la región del Maule y sus consecuencias son un factor fundamental a la hora de planificar nuevas políticas públicas, por lo que consideramos de vital importancia promover la realización de investigaciones y actualización de la evidencia sobre el tema, con un enfoque en la población local.

Consumption of a Byproduct of Chia Seed Oil Extraction by Cold Pressing Ameliorates Cardiovascular Risks Factors in an Experimental Model of Metabolically Unhealthy Normal Weight.

The byproduct of Salvia hispanica (chia) seed oil extraction by cold pressing, also known as expeller, possesses a high nutritional value. It is rich in proteins, fibers, minerals, and has a residual oil content of 7-11%, which is rich in omega 3 linolenic acid (ALA). However, this byproduct has been historically undervalued. Thus, the aim of current work was to study the effects of consuming of a rich in chia expeller diet on a rabbit model of metabolically unhealthy normal weight to validate their use as a functional food. Rabbits were fed different diets for a period of 6 weeks: a standard diet (CD), a high-fat diet (HFD), a rich in expeller CD (Exp-CD) and a rich in expeller HFD (Exp-HFD). The Exp-HFD attenuated the rise in basal glucose, TyG index, triglycerides, cholesterol and non-HDL cholesterol induced by the HFD. Both rich in expeller diets reduced mean arterial blood pressure (MAP) and increase liver and fat ALA levels compared to their respective controls. Furthermore, the angiotensin converting enzyme (ACE) activity was lower in the lungs of animals fed on rich in expeller diets compared to their respective controls. In vitro studies showed that ALA inhibited ACE activity. The evaluation of vascular reactivity revealed that rich in expeller diets improved angiotensin II affinity and reduced contractile response to noradrenaline. In conclusion, the consumption of rich in expeller diets showed beneficial effects in preventing cardiovascular risk factors such as insulin resistance, dyslipidemia and MAP. Therefore, its use as functional ingredient holds significant promise.

Management of shunt dysfunction using noninvasive intracranial pressure waveform monitoring: illustrative case.

BACKGROUND: Normal pressure hydrocephalus (NPH) treatment consists of using valves for drainage, as it is for hydrocephalus in general. Despite this, complications can occur, putting the patient at risk, and neurological monitoring is crucial. OBSERVATIONS: A 61-year-old male, who had been diagnosed with NPH 3 years prior and was being treated with a ventriculoperitoneal shunt with a programmable valve, presented to the emergency department because of a traumatic brain injury due to a fall from standing height. No previous complications were reported. He had an altered intracranial pressure (ICP) waveform in the emergency room when monitored with the brain4care device, with a P2/P1 ratio of 1.6. Imaging helped to confirm shunt dysfunction. Revision surgery normalized the ratio to 1.0, and the patient was discharged. Upon return after 14 days, an outpatient analysis revealed a ratio of 0.6, indicating improvement. LESSONS: In selected cases of NPH, noninvasive ICP waveform morphology analysis can be effective as a diagnostic aid, as well as in the pre- and postsurgical follow-up, given the possibility of comparing the values of ICP preoperatively and immediately postoperatively and the outpatient P2/P1 ratio, helping to manage these patients.

Metabolically Unhealthy Normal Weight: Prevalence and Associated Factors in an Adult Population from Northwest Colombia.

Background and Aim: Individuals with a normal weight may have metabolic alterations at risk for chronic non-communicable diseases. The prevalence of this condition and associated factors have not been reported in Latin American populations. We aimed to estimate the presence and associated factors of Metabolically Unhealthy Normal Weight (MUNW) in adults from a public program for the control and prevention of chronic diseases in Medellín, Colombia. Methods: Cross-sectional study. Overweight and normal weight were characterized according to the absence or presence of one or more components of the metabolic syndrome, obtaining four phenotypes: Metabolically Healthy Normal Weight (MHNW), MUNW (phenotype of interest), Metabolically Healthy Overweight (MHO), and Metabolically Unhealthy Overweight (MUO). The association of these phenotypes with sociodemographic variables of lifestyles and increased waist circumference was conducted by using logistic regression. Results: In 37,558 individuals (72.7% women), the prevalence of MUNW was 23.3%. Among the additional phenotypes, MUO was found to be more prevalent (71.6%), while MHNW and MHO were very slightly common, 2% and 3.1%, respectively. In a multiple model, the factors associated with MUNW were age over 60 years (trend [OR 1.56 95% CI 0.97-2.52] p-value = 0.066), living in a rural area ([OR 1.58 95% CI 1.09-2.29] p-value = 0.015), and increased waist circumference ([OR 1.68 95% CI 1.45-1.95] p-value < 0.001). Male gender was inversely associated with all phenotypes (P < 0.05). Conclusion: Almost a quarter of the analyzed population presented MUNW. People living in a rural area and over 60 years old were more likely to present MUNW. Men were less likely to present the weight phenotypes studied, although they could have been underrepresented.

Optimal ALT threshold for the automated diagnosis of MASLD: A population-based study using iLFT.

INTRODUCTION AND OBJECTIVES: Early diagnosis of metabolic dysfunction-associated steatotic liver disease (MASLD), especially with advanced fibrosis, is crucial due to the increased risk of complications and mortality. Serum alanine aminotransferase (ALT) is commonly used; however, many patients have normal ranges (<55 U/L) who may remain undetected. We investigated the clinical implications of a lower ALT cut-off (>30 U/L) using intelligent liver function testing (iLFT) to identify MASLD patients with and without advanced fibrosis in primary care. MATERIALS AND METHODS: All patients entering the iLFT diagnostic pathway had liver aetiological screening investigations if ALT >30 U/L. In those with MASLD the proportions with and without advanced fibrosis at different ALT thresholds: 31-41 U/L, 42-54 U/L and ≥55 U/L were compared. RESULTS: 16,373 patients underwent iLFT between March 2016 to April 2022. 762 (5 %) patients had MASLD with abnormal fibrosis scores, while 908 (6 %) had MASLD with normal fibrosis scores. 428 (56 %) patients were assessed in liver clinics, where 169 (39 %) had evidence of fibrosis. Of these, 22 (13 %) had ALT 31-41 U/L, 31 (18 %) had ALT 42-54 U/L and 116 (69 %) had ALT ≥55 U/L. 145 (86 %) patients had advanced fibrosis or cirrhosis, where 20 (14 %) had ALT 31-41 U/L, 28 (19 %) had ALT 42-54 U/L and 97 (67 %) had ALT ≥55 U/L. CONCLUSIONS: 33 % of MASLD patients with advanced fibrosis or cirrhosis had ALT 31-54 U/L, who would have been missed using the conventional ALT range. This suggests that lowering the ALT cut-off improves diagnosis of MASLD with advanced fibrosis in primary care.

The pain reported by postpartum women in rooming-in according to the mode of delivery / Dor relatada por puérperas no alojamento conjunto segundo a via de nascimento

ABSTRACT BACKGROUND AND OBJECTIVES: Pain is the most frequently reported symptom in the immediate puerperium. The aim of this study was to quantify pain levels and sociodemographic, obstetric, and care characteristics associated with severe pain and inadequate analgesia according to the mode of delivery. METHODS: Observational, descriptive, cross-sectional study conducted between October and December 2020, with a sample of 229 postpartum women considered eligible (baby born alive, weighing > 500 g and/or gestational age > 22 weeks) to answer the study questionnaire. RESULTS: The mean reported pain was 5.34 by Visual Analogue Scale (VAS) and there was a difference (p<0.001) between modes of delivery. Cesarean section was associated with severe pain (p=0.006) and pain above eight on the VAS (p=0.02). Vaginal delivery was associated with the perception of inadequate analgesia (p=0.04). Severe pain reported was associated with the admission of the baby to the ICU (p=0.01) and cases of postpartum hemorrhage (p=0.002). Among women who gave birth vaginally, there was an association between severe pain and instrumental delivery (p=0.05). Reported severe pain was associated with difficulties in self-care (p<0.001) and care of the newborn (p= 0.02), sensation of weakness (p<0.001), and fainting (p=0.002). The perception of inadequate analgesia was associated with vaginal birth (p=0.04) end non-white skin color (p=0,03). CONCLUSION: The average reported pain was moderate. Intense pain and the perception of inadequate analgesia were associated with instrumental delivery, newborns being referred to the NICU, postpartum hemorrhage, and non-white skin color.

RESUMO JUSTIFICATIVA E OBJETIVOS: A dor é o sintoma mais frequentemente relatado no puerpério imediato. O objetivo deste estudo foi quantificar os níveis de dor e as características sociodemográficas, obstétricas e da assistência associadas à dor intensa e à percepção de analgesia inadequada segundo a via de nascimento. MÉTODOS: Estudo observacional, descritivo, transversal, conduzido entre outubro e dezembro de 2020, com uma amostra de 229 puérperas consideradas elegíveis (nativivos com peso > 500g e/ou idade gestacional > 22 semanas) para responder ao questionário do estudo. RESULTADOS: A média de dor relatada foi 5,3 pela Escala Analógica Visual (EAV) e houve diferença (p<0,001) entre as vias de nascimento. A cesariana apresentou associação com dor intensa referida (p=0,006) e dor acima de oito pela EAV (p=0,02). O parto vaginal obteve associação com percepção de analgesia inadequada (p=0,04). Entre as mulheres que referiram dor intensa, houve associação com recém-nascido encaminhado à unidade de terapia intensiva neonatal (UTIN) (p=0,01) e nos casos de hemorragia pós-parto (p=0,002). Entre as mulheres que tiveram parto vaginal, também houve associação entre dor intensa e o parto instrumental (p=0,05). Dor intensa referida teve associação com dificuldades para o autocuidado (p<0,001) e do recém-nascido (p=0,02), sensação de fraqueza (p<0,001) e de desmaio (p= 0,002). A percepção de analgesia inadequada esteve associada a parto vaginal (p=0,04) e cor da pele não branca (p=0,03). CONCLUSÃO: A média de dor relatada foi moderada. Dor intensa e percepção de analgesia inadequada estiveram associadas com parto instrumental, recém-nascido encaminhado à UTIN, hemorragia pós-parto e cor de pele não branca.

Prevalence and factors associated with the perception of perineal laceration: a cross-sectional study with data from the Nascer no Brasil Survey, 2011 and 2012 / Prevalencia y factores asociados a la percepción de laceración perineal: estudio transversal con datos de la Encuesta Nascer no Brasil, 2011 y 2012 / Prevalência e fatores associados à percepção da laceração perineal: estudo transversal com dados do Inquérito Nascer no Brasil, 2011 e 2012

Abstract Objective: To describe the prevalence of perineal laceration, based on the self-reported perception of postpartum women, and to analyze factors associated with its occurrence in Brazil. Methods: This was a cross-sectional study conducted with 23,894 postpartum women, excluding twin pregnancies, cesarean sections, and births with episiotomies, between 2011 and 2012. Prevalence ratios (PR) and 95% confidence intervals (95%CI) of association between the event and maternal, fetus/newborn, obstetric and clinical management characteristics were estimated in hierarchical Poisson regression models. Results: Out of 4,606 postpartum women, 49.5% (95%CI 46.1;42.9) self-reported perineal laceration. Being an adolescent (PR = 1.12; 95%CI 1.02;1.25), primipara (PR = 1.47; 95%CI 1.33;1.63), having had excessive gestational weight gain (PR = 1.17; 95%CI 1.07;1.29) and having undergone the Kristeller maneuver (PR = 1.18; 95%CI 1.08;1.29) increased the proportion of the outcome. Conclusion: The results found call for prenatal care and adjustments to childbirth care so as to be in accordance with current recommendations.

Resumen Objetivo: Describir la prevalencia de laceración perineal, a partir de la percepción autoinformada de puérperas, y analizar los factores asociados a su aparición en Brasil. Métodos: Estudio transversal entre 2011 y 2012, con 23.894 puérperas, excluyendo embarazos gemelares, cesáreas y partos con episiotomías. Se estimaron razones de prevalencia (RP) e intervalos de confianza del 95% (IC95%) de la asociación entre el evento y las características maternas, feto/recién nacido, obstétricas y de manejo clínico en modelos de regresión jerárquica de Poisson. Resultados: Entre 4.606 mujeres en posparto, el 49,5%(IC95%:46,1;42,9) informó laceración perineal. Ser adolescente (RP = 1,12; IC95% 1,02;1,25), primipara (RP = 1,47; IC95% 1,33;1,63), haber tenido aumento excesivo de peso gestacional (RP = 1,17; IC95% 1,07;1,29) y haber sido sometido a la maniobra de Kristeller (RP = 1,18; IC95% 1,08;1,29) aumentó la proporción de resultados. Conclusión: Los resultados encontrados requieren atención prenatal y ajustes en la atención del parto de acuerdo con las recomendaciones actuales.

Resumo Objetivo: Descrever a prevalência da laceração perineal segundo a percepção autorrelatada da puérpera, e analisar os fatores associados à sua ocorrência no Brasil. Métodos: Estudo transversal conduzido em 23.894 puérperas, excluindo-se gestações gemelares, cesarianas e partos com episiotomias entre 2011 e 2012. Razões de prevalência (RP) e intervalos de confiança de 95% (IC95%) da associação entre o evento e as características maternas, feto/recém-nato, obstétricas e manejo clínico foram estimadas em modelos de regressão de Poisson hierarquizados. Resultados: Entre 4.606 puérperas, 49,5% (IC95% 46,1;42,9) autorrelataram laceração perineal. Ser adolescente (RP = 1,12; IC95% 1,02;1,25), primípara (RP = 1,47; IC95% 1,33;1,63), ter tido ganho de peso gestacional excessivo (RP = 1,17; IC95% 1,07;1,29) e ter sido submetida à manobra de Kristeller (RP = 1,18; IC95% 1,08;1,29) elevaram a proporção do desfecho. Conclusão: Os resultados encontrados demandam atenção pré-natal e adequações na assistência ao parto conforme recomendações vigentes.

Desafios da gestão e cuidado em centros de parto normal: estudo qualitativo com enfermeiros obstetras / Challenges of management and care in normal birth centers: qualitative study with obstetric nurses / Retos del manejo y atención en los centros de parto normal: estudio cualitativo con enfermeros obstétricos

RESUMO Objetivo: compreender os desafios para a gestão do trabalho e do cuidado em centros de parto normal por enfermeiras obstétricas. Método: estudo qualitativo realizado em centros de parto normal no Ceará, Brasil. Participaram 13 enfermeiros e coordenadores da assistência obstétrica, por entrevista, no período de abril a julho de 2020. As categorias temáticas foram organizadas no Software Nvivo 12 Pro® e discutidas com referencial teórico-filosófico da Sociologia das Profissões. Resultados: práticas de cuidado, como massagens de conforto, são realizadas associadas aos elementos da gestão do trabalho, como o dimensionamento da equipe de Enfermagem. Evidenciou-se que há habilidades importantes para atuar como autonomia e liderança da equipe de Enfermagem, mas elementos como a frágil confiança e a interação limitam o pleno desenvolvimento das atividades. Considerações finais: existem desafios para a gestão e o cuidado nos centros de parto normal, como a consolidação de autonomia e construção de confiança com a equipe de saúde.

ABSTRACT Objective: To understand obstetric nurses' challenges in managing work and care in normal birth centers. Method: A qualitative study was carried out in normal birth centers in Ceará, Brazil. Thirteen nurses and obstetric care coordinators were interviewed between April and July 2020. The thematic categories were organized in Nvivo 12 Pro® software and discussed using the theoretical-philosophical framework of the Sociology of Professions. Results: care practices, such as comfort massages, are carried out in conjunction with elements of work management, such as the sizing of the nursing team. It emerged that there are important skills for acting as autonomy and leadership of the nursing team, but elements such as fragile trust and interaction limit the full development of activities. Final considerations: there are challenges for management and care in normal birth centers, such as consolidating autonomy and building trust with the health team.

RESUMEN Objetivo: Comprender los desafíos para la gestión del trabajo y la atención en los centros de parto normal por parte de las enfermeras obstétricas. Método: estudio cualitativo realizado en centros de parto normal de Ceará, Brasil. Un total de 13 enfermeros y coordinadores de atención obstétrica participaron en entrevistas de abril a julio de 2020. Las categorías temáticas se organizaron en el Software Nvivo 12 Pro ® y se discutieron con el marco teórico-filosófico de la Sociología de las Profesiones. Resultados: las prácticas de cuidado, como los masajes de confort, se realizan asociadas a elementos de la gestión del trabajo, como el dimensionamiento del equipo de enfermería. Se evidenció que existen habilidades importantes para actuar como autonomía y liderazgo del equipo de enfermería, pero elementos como la confianza frágil y la interacción limitan el desarrollo pleno de las actividades. Consideraciones finales: existen desafíos para el manejo y la atención en los centros de parto normales, como la consolidación de la autonomía y la construcción de confianza con el equipo de salud.

Robson classification to evaluate cesarean section rates in a public hospital: a cross-sectional study / Classificação de Robson para avaliação das taxas de cesárea em um hospital público: estudo transversal

Abstract Objectives: this study describes the occurrence of cesarean sections according to the Robson Classification in a public hospital in southern Brazil. Methods: a cross-sectional and retrospective study was conducted. Women who underwent vaginal delivery or cesarean section at the study location (gestational age >20 weeks and/or fetuses weighing > 500 g) were included. Stillbirths were excluded. Sociodemographic and obstetric data from July to November 2018 were retrospectively collected from medical records. Chi-square and linear trend tests were used for data analysis. The Robson Classification was analyzed according to World Health Organization recommendations, and the reasons for cesarean section were described. Results: the sample consisted of 1,531 women. The cesarean section rate was 39.1% (n=598). A greater incidence of cesarean sections was identified among women with no previous vaginal births, older women, those with higher educational levels, and those with more previous cesarean sections. Groups 1, 2 and 5 of the Robson Classification stood out for presenting cesarean section rates of 16%, 56.9% and 66.2%, respectively, and for totaling 60.3% of births by cesarean section in the studied institution. Conclusions: the percentage of cesarean sections found was greater than that reported in studies conducted in other countries. Groups 1 to 5 of the Robson Classification presented rates lower than values found in national literature. Groups 1, 2 and 5 should be prioritized for management and care interventions aiming to reduce cesarean rates.

Resumo Objetivos: descrever a ocorrência de cesáreas conforme a Classificação de Robson em hospital público no sul do Brasil. Métodos: estudo transversal retrospectivo. Foram incluídas mulheres com parto vaginal ou cesárea assistidos na instituição (idade gestacional >20 semanas e/ou fetos com peso >500g) e excluídos nascimentos de feto morto. Dados sociodemográficos e obstétricos de julho a novembro de 2018 foram coletados retrospectivamente dos prontuários. Para análise utilizou-se o teste qui-quadrado e teste de tendência linear. A Classificação de Robson foi analisada conforme recomendações da Organização Mundial da Saúde, e foram descritas as justificativas de cesárea. Resultados: amostra de 1.531 mulheres, com percentual de cesárea de 39,1% (n=598). Identificou-se maior ocorrência de cesarianas entre mulheres com maior faixa etária, nível de escolaridade e número de cesarianas prévias, e sem partos vaginais prévios. Os Grupos 1, 2 e 5 da Classificação de Robson destacaram-se por apresentar, respectivamente, os percentuais de cesárea de 16%, 56,9% e 66,2%, e por totalizar 60,3% dos nascimentos por via cirúrgica. Conclusões: neste estudo, os percentuais de cesárea dos grupos da Classificação de Robson foram maiores quando comparados a estudos internacionais. Os Grupos 1 a 5 apresentaram valores menores em relação ao panorama nacional. Os Grupos 1, 2 e 5 destacaram-se como prioritários para intervenções assistenciais e de gestão.

Alta proporción de macrodisco en pacientes de dos centros oftalmológicos en el occidente de Honduras / High proportion of macrodisc in patients from two ophthalmological centers in western Honduras

Antecedentes: Cuando el nervio óptico presenta una superficie mayor a 2.5 mm2 , y sin patologías asociadas, se trata de un macrodisco, cuya excavación es proporcional al tamaño aumentado del mismo. Con base en la distribución bajo la curva de Gauss, se define como "macrodisco" cuando está por encima de 2 desviaciones estándar arriba de la media. Se espera que solo el 2.3% de la población exceda estos límites. Objetivo: Determinar el tamaño promedio del disco óptico y proporción de macrodisco en la población sin glaucoma ni patologías retinianas que acude a dos clínicas oftalmológicas del occidente de Honduras, en el periodo de julio 2021 hasta julio 2022. Métodos: Estudio retrospectivo descriptivo. Se midieron los parámetros morfométricos del disco óptico mediante Tomografía de Coherencia Óptica ZEISS Cirrus HD Model 4000. Se definió macrodisco como: área del disco óptico >2.5 mm 2 y área del disco más 2 o más desviaciones estándar arriba de la media. Resultados: La proporción de macrodisco fue de 31% tomando en cuenta la definición de área de disco >2.5 mm2 , y 3% considerando la definición con base a la distribución bajo la curva de Gauss (>3.17mm2 ). Se obtuvo un promedio de área de disco óptico de 2.28±0.45 mm 2 , ratio copa/disco (C/D) de 0.59±0.13, ratio C/D vertical de 0.56±0.13, área de anillo neuroretiniano de 1.37±0.22 mm 2 , espesor de Capa de Fibras Nerviosas Retinianas (CFNR) de 97.4±10.664µm. Discusión: El área de disco promedio obtenido es mayor que los caucásicos, similar a lo reportado en los hispánicos, y menor que afrodescendientes y asiáticos...(AU)

Treatment of Idiopathic Normal Pressure Hydrocephalus with a Novel Programmable Valve: Prospective Evaluation of Costs, Efficacy, and Safety.

Objective Programmable valves provide an equal or superior neurological outcome when compared with fixed pressure ones, with fewer complications, in treating idiopathic normal pressure hydrocephalus (iNPH) patients. Long-term costs of these treatments have not been properly compared in literature. We sought to compare costs, efficacy, and safety of 1-year treatment of iNPH patients with programmable valve Sphera Pro and a fixed pressure valve. Materials and Methods A prospective cohort of iNPH patients treated with programmable valve was compared with a historical cohort of iNPH patients treated with fixed pressure valve. Our primary outcome was mean direct cost of treating iNPH up to 1 year. Efficacy in treating iNPH and safety were assessed as secondary outcomes. Statistical Analysis Proportions were compared using chi-square or Fisher's exact tests. Normally distributed variables were compared using the Student's t -test or the Mann-Whitney's U test. Differences in the evolution of the variables over time were assessed using generalized estimating equations. All tests were two-sided, with an α of 0.05. Results A total of 19 patients were analyzed in each group (mean age 75 years, the majority male). Comorbidities and clinical presentation were similar between groups. Both fixed pressure and programmable valve patients had neurological improvement over time ( p < 0.001), but no difference was seen between groups ( p = 0.104). The fixed pressure valve group had more complications than the programmable valve group (52.6% vs. 10.5%, respectively, p = 0.013). Annual treatment cost per patient was US$ 3,820 ± 2,231 in the fixed pressure valve group and US$ 3,108 ± 553 in the programmable valve group. Mean difference was US$712 (95% confidence interval, 393-1,805) in favor of the programmable valve group. Conclusion The Sphera Pro valve with gravitational unit had 1 year treatment cost not higher than that of fixed pressure valve, and resulted in similar efficacy and fewer complications.

Structural and pKa Estimation of the Amphipathic HR1 in SARS-CoV-2: Insights from Constant pH MD, Linear vs. Nonlinear Normal Mode Analysis.

A comprehensive understanding of molecular interactions and functions is imperative for unraveling the intricacies of viral protein behavior and conformational dynamics during cellular entry. Focusing on the SARS-CoV-2 spike protein (SARS-CoV-2 sp), a Principal Component Analysis (PCA) on a subset comprising 131 A-chain structures in presence of various inhibitors was conducted. Our analyses unveiled a compelling correlation between PCA modes and Anisotropic Network Model (ANM) modes, underscoring the reliability and functional significance of low-frequency modes in adapting to diverse inhibitor binding scenarios. The role of HR1 in viral processing, both linear Normal Mode Analysis (NMA) and Nonlinear NMA were implemented. Linear NMA exhibited substantial inter-structure variability, as evident from a higher Root Mean Square Deviation (RMSD) range (7.30 Å), nonlinear NMA show stability throughout the simulations (RMSD 4.85 Å). Frequency analysis further emphasized that the energy requirements for conformational changes in nonlinear modes are notably lower compared to their linear counterparts. Using simulations of molecular dynamics at constant pH (cpH-MD), we successfully predicted the pKa order of the interconnected residues within the HR1 mutations at lower pH values, suggesting a transition to a post-fusion structure. The pKa determination study illustrates the profound effects of pH variations on protein structure. Key results include pKa values of 9.5179 for lys-921 in the D936H mutant, 9.50 for the D950N mutant, and a slightly higher value of 10.49 for the D936Y variant. To further understand the behavior and physicochemical characteristics of the protein in a biologically relevant setting, we also examine hydrophobic regions in the prefused states of the HR1 protein mutants D950N, D936Y, and D936H in our study. This analysis was conducted to ascertain the hydrophobic moment of the protein within a lipid environment, shedding light on its behavior and physicochemical properties in a biologically relevant context.

Cartesian constraints in QM/MM optimizations.

With the rise of quantum mechanical/molecular mechanical (QM/MM) methods, the interest in the calculation of molecular assemblies has increased considerably. The structures and dynamics of such assemblies are usually governed to a large extend by intermolecular interactions. As a result, the corresponding potential energy surfaces are topological rich and possess many shallow minima. Therefore, local structure optimizations of QM/MM molecular assemblies can be challenging, in particular if optimization constraints are imposed. To overcome this problem, structure optimization in normal coordinate space is advocated. To do so, the external degrees of freedom of a molecule are separated from the internal ones by a projector matrix in the space of the Cartesian coordinates. Here we extend this approach to Cartesian constraints. To this end, we devise an algorithm that adds the Cartesian constraints directly to the projector matrix and in this way eliminates them from the reduced coordinate space in which the molecule is optimized. To analyze the performance and stability of the constrained optimization algorithm in normal coordinate space, we present constrained minimizations of small molecular systems and amino acids in gas phase as well as water employing QM/MM constrained optimizations. All calculations are performed in the framework of auxiliary density functional theory as implemented in the program deMon2k.

Aging changes in maxillary anterior teeth in untreated individuals: an observational longitudinal study.

OBJECTIVE: The aging of the occlusion and tooth wears influence the smile design This study aimed at evaluating the aging changes of maxillary anterior teeth in nontreated subjects. METHODS: The sample comprised dental models of 23 subjects (13 male, 10 female) with normal occlusions, taken at 13 (T1), 17 (T2) and 61 (T3) years of age. The following variables were measured in the maxillary anterior teeth using digital dental models: crown width/height proportion, anterior view width, crown angulation, gingival and incisal steps between central/lateral incisors and central incisors/canines. Interphase comparisons were evaluated using repeated measures analysis of variance followed by Tukey tests or Friedman tests. Sexual differences were evaluated using t tests (P < 0.05). RESULTS: From 13 to 61 years of age, a decrease of crown width/height proportion (P = 0.008 and P = < 0.001, for the lateral incisor and canines, respectively) and mesiodistal angulation (P = < 0.001, P = 0.001 and P = 0.025 for the central incisor, lateral incisor and canines, respectively) of the maxillary anterior teeth were observed. The steps of the gingival margin and the incisal steps decreased with aging. CONCLUSIONS: From adolescence to late adulthood, untreated individuals with normal occlusions demonstrated changes in the maxillary anterior teeth that may impair the smile esthetics and attractiveness.