ABSTRACT Iphigenia brasiliensis is a bivalve mollusk exploited as a shellfish and subsistence resource on the Brazilian coast, mainly in the north and northeast regions. Genetic (allozyme electrophoresis revealed eight gene loci) and morphological variations (multivariate morphometry of valves used 13 linear measurements of traditional and 19 Fourier coefficients of geometric morphometry) were studied, considering the geographic (445 km of the southwest tropical Atlantic), environmental (mangroves and channels of communication with the sea of three estuaries in the state of Rio de Janeiro), and temporal dimensions (over two years). I. brasiliensis showed high levels of genetic variation (the average number of alleles per locus ranged from 2.8 to 3.4, and the average heterozygosity ranged from 0.441 to 0.675). Bayesian analysis of population partitioning showed that the highest LnP(D) value was achieved for K = 3. These results indicated mixed ancestry, possibly oscillations in the dispersion dynamics among the different sampling groups, and temporal oscillations in the population sizes due to the anthropogenic influence on the studied estuaries. The results of morphological variation, inferred by the PERMANOVA from the Fourier analysis, indicated that a similar influence might occur in valves (also, the discriminant analysis showed that different groups could be consistently identified). In this sense, the studied populations may be organized in a dynamic of metapopulations. Finally, these are the first data on morphological and genetic variation of the species in the latitudinal, environmental, and temporal dimensions studied simultaneously, thus providing relevant information for the exploration, management, and conservation of this commercially important species.

SUMMARY: The study on cadavers, although considered fundamental in the teaching of human anatomy, is limited in several universities, mainly due to the acquisition and manipulation of cadaveric material. Throughout history, several artificial anatomical models have been used to complement the real anatomical pieces. The present study offers a new alternative: the making of three-dimensional models from Computed Tomography (3D-CT) patient image acquisition. CT images from the USP University Hospital database were used. Patients underwent examinations for reasons other than the present study and were anonymized to maintain confidentiality. The CT slices obtained in thin cross-sections (approximately 1.0 mm thick) were converted into three-dimensional images by a technique named Volume Rendering for visualization of soft tissue and bone. The reconstructions were then converted to an STL (Standard Triangle Language) model and printed through two printers (LONGER LK4 Pro® and Sethi S3®), using PLA and ABS filaments. The 3D impressions of the thigh and leg muscles obtained better visual quality, being able to readily identify the local musculature. The images of the face, heart, and head bones, although easily identifiable, although seemed to present lower quality aesthetic results. This pilot study may be one of the first to perform 3D impressions of images from CT to visualize the musculature in Brazil and may become an additional tool for teaching.

RESUMEN: El estudio en cadáveres, a pesar de considerarse un aspecto fundamental en la enseñanza de la anatomía humana, se encuentra limitado en varias universidades, principalmente por la adquisición y manipulación de material cadavérico. A lo largo de la historia se han utilizado varios modelos anatómicos artificiales para complementar las piezas anatómicas reales. El presente estudio ofrece una nueva alternativa: la elaboración de modelos tridimensionales a partir de la adquisición de imágenes de pacientes por Tomografía Computarizada (3D-CT). Se utilizaron imágenes de TC de la base de datos del Hospital Universitario de la USP. Los pacientes se sometieron a exámenes por razones distintas al presente estudio y fueron anonimizados para mantener la confidencialidad. Los cortes de TC obtenidos en secciones transversales delgadas (aproximadamente 1,0 mm de grosor) se convirtieron en imágenes tridimensionales mediante una técnica denominada Volume Rendering para la visualización de tejido blando y hueso. Luego, las reconstrucciones se convirtieron a un modelo STL (Standard Triangle Language) y se imprimieron a través de dos impresoras (LONGER LK4 Pro® y Sethi S3®), utilizando filamentos PLA y ABS. Se obtuvo una mejor calidad visual de las impresiones 3D de los músculos del muslo y la pierna, pudiendo identificar fácilmente la musculatura local. Las imágenes de la cara, el corazón y los huesos de la cabeza, aunque fácilmente identificables, parecían presentar resultados estéticos de menor calidad. Este estudio piloto puede ser uno de los primeros en realizar impresiones 3D de imágenes de TC para visualizar la musculatura y podría ser en una herramienta adicional para la enseñanza.

ABSTRACT. Banana (Musa spp.) is one of the main fruits consumed worldwide. However, finger drop, is a physiological disorder that causes many postharvest problems, which eventually reduces market value and consumer acceptance. Therefore, the objective of the study was to evaluate the anatomical changes that occur in the pedicel rupture area (drop zone) of bananas diploids (BB França) and tetraploid (BRS Pioneira) in three ripening stages. The levels of gene expression involved in the natural ripening process and in the development of finger drop, was also investigated. The accumulation of their mRNAs and those of expansin (EXP1), pectate lyase (PEL1) and xyloglucan endotransglucosylase/hydrolase protein (XTH4) genes already isolated from bananas were measured by quantitative polymerase chain reaction in three ripening stages. BB França presented a higher resistance to finger drop due to the presence of some specific morphoanatomical characteristics, such as larger parenchymal cells and greater deposition of lignin. In contrast, there was degeneration of the pedicel parenchymal tissue of the BRS Pioneira genotype, forming large empty spaces during the ripening of the fruits, mainly in stage 6, which contributed to the finger drop. The diploid BB França is a strong candidate for use in banana breeding programs aimed at fruit drop resistance. This will certainly improve the quality of banana varieties. Moreover, PEL1 proved to be an excellent candidate gene for functional studies of finger drop in bananas.

ABSTRACT Visceral leishmaniasis (VL) is a chronic vector-borne zoonotic disease caused by trypanosomatids, considered endemic in 98 countries, mainly associated with poverty. About 50,000–90,000 cases of VL occur annually worldwide, and Brazil has the second largest number of cases in the world. The clinical picture of VL is fever, hepatosplenomegaly, and pancytopenia, progressing to death in 90% of cases due to secondary infections and multi-organ failure, if left untreated. We describe the case of a 25-year-old female who lived in the metropolitan area of Sao Paulo, who had recently taken touristic trips to several rural areas in Southeastern Brazil and was diagnosed post-mortem. During the hospitalization in a hospital reference for the treatment of COVID-19, the patient developed acute respiratory failure, with chest radiographic changes, and died due to refractory shock. The ultrasound-guided minimally invasive autopsy diagnosed VL (macrophages containing amastigote forms of Leishmania in the spleen, liver and bone marrow), as well as pneumonia and bloodstream infection by gram-negative bacilli.

Abstract In the Amazon, local electrical energy production is very important due to the large number of isolated communities, usually far from the conventional grid. In this context, steam turbines are relevant technologies to be used in the region, since waste biomass is widely available in several communities, besides, where sustainable agricultural activities take place, such as the use of açaí seeds, sugarcane bagasse, among others. Currently, there are not many relevant studies in the literature for small steam turbines operating at low pressure, conditioned to the reality of the Amazon region. Hence, the main goal of this work is to develop an experimental study of a small steam turbine operating at low pressure, in order to apply it to small energy demand, typically found in the Amazon. We developed measurements on the behavior of mechanical and electrical powers in relation to the shaft rotational speed of the small steam turbine, taking into account pressures of 0.1, 0.2 and 0.3 MPa. We concluded that the preliminary experimental survey, made in this work, demonstrates a good mechanical behavior of the small turbine and could be an alternative for electricity generation system to supply small demands in isolated communities in the Amazon, taking advantage of biomass from sustainable agricultural activities.

Resumo Na Amazônia, a produção local de energia elétrica é muito importante devido ao grande número de comunidades isoladas, geralmente distantes da rede convencional. Nesse contexto, as turbinas a vapor são tecnologias relevantes a serem utilizadas na região, uma vez que a biomassa está amplamente disponível em diversas comunidades, inclusive, onde ocorrem atividades agrícolas sustentáveis como a utilização do caroço do açaí, bagaço de cana, entre outros. Atualmente, não existem muitos estudos relevantes na literatura para pequenas turbinas a vapor operando em baixa pressão, condicionadas à realidade da região amazônica. Assim, o objetivo principal deste trabalho é desenvolver um estudo experimental de uma pequena turbina a vapor operando em baixa pressão, a fim de aplicá-la a pequenas demandas de energia, tipicamente encontradas na região. Desenvolvemos medições do comportamento das potências mecânica e elétrica em relação à velocidade de rotação do eixo da pequena turbina a vapor, levando em consideração as pressões de 0,1, 0,2 e 0,3 MPa. Concluímos que o levantamento experimental preliminar, feito neste trabalho, demonstra um bom comportamento mecânico da pequena turbina e pode ser uma alternativa para o sistema de geração de energia elétrica suprir pequenas demandas em comunidades isoladas na Amazônia, aproveitando a biomassa oriunda de atividades agrícolas sustentáveis.

ABSTRACT Purpose to verify the relationship between the risk of falling, the level of confidence in activities involving balance, and age with the values of gain and symmetry of the semicircular canals (SSCs), using the Head Video Impulse Test (vHIT) in patients with peripheral vestibular dysfunction. Methods Cross-sectional study in 12 individuals submitted to functional evaluation using the Activities-specific Balance Confidence Scale (ABC Scale) and the Dynamic Gait Index (DGI), and vestibular evaluation with vHIT. The results were compared using Spearman's Correlation Coefficient. Results There was a predominance of females (75%), with a mean age of 59 years and 8 months. The mean score in DGI was 19.70 points and on the ABC Scale, 43.65%, which is characteristic of a low confidence level. A moderate correlation was observed between age and DGI and between DGI and ABC Scale and SCC gain and symmetry values with vHIT. Conclusion A relationship was observed between a higher risk of falling in patients with vestibular hypofunction and advanced age and between a low level of confidence to perform daily activities due to asymmetrical SCC gain.

RESUMO Objetivo verificar a relação entre o risco de queda, o nível de confiança nas atividades que envolvem equilíbrio e a idade com os valores de ganho e simetria dos canais semicirculares (CSCs), por meio do Vídeo Teste do Impulso Cefálico (vHIT), em pacientes com disfunção vestibular periférica. Método estudo transversal, composto por 12 indivíduos submetidos à avaliação funcional por meio da Activities-specific Balance Confidance Scale (ABC Scale) e do Dynamic Gait Index (DGI) e avaliação vestibular com o vHIT. Os resultados foram comparados por meio do Coeficiente de Correlação de Spearman. Resultados observou-se predomínio do gênero feminino (75%), com média de idade de 59 anos e 8 meses. A média de escore no DGI foi de 19,70 pontos e 43,65% na ABC Scale, característico de baixo nível de confiança. Observou-se correlação de grau moderado entre os parâmetros idade com o DGI, DGI e ABC Scale com os valores de ganho e simetria dos CSCs do vHIT. Conclusão Observaram-se relações entre o maior risco de queda em pacientes com hipofunção vestibular e idade avançada e entre o baixo nível de confiança para realizar atividades diárias diante da assimetria de ganho dos CSCs.

Abstract Cotton is an essential worldwide commodity, and Brazil ranks fourth in world production and second in export. The present work aimed to gather the genealogies and estimate the genetic base of 109 Brazilian cotton cultivars released from 1932 to 2021. Twelve of the 68 ancestors identified contributed with 52.03% of the genes, and 33% of the cultivars resulted from the direct selection from landraces or old cultivars, evidencing a narrow genetic base. Over time, especially after 1990, the increases in the number of cultivars released and number of ancestors added to the breeding programs were driven by the need to reduce the cultivars' cycle for coexistence with pests and to make them suitable for mechanized cultivation in the new agricultural frontiers. However, Brazilian cotton cultivars still have a narrow genetic base, with the important participation of the ancestors CNPA SRI3, CKR 100W, C-77 and Express.

BACKGROUND According to the last 2023 Monkeypox (Mpox) Outbreak Global Map from the Centres for Disease Control and Prevention (CDC), more than 100 countries with no Mpox infection report cases. Brazil stands out in this group and is the second country with the highest number of cases in the last outbreak. OBJECTIVE To contribute to knowledge of the virus infection effects in a cellular model, which is important for diagnosis infections not yet included in a provider´s differential diagnosis and for developing viral inhibition strategies. METHODS We describe a virus isolation protocol for a human clinical sample from a patient from Brazil, the viral growth in a cell model through plaque forming units (PFU) assay, reverse transcriptase polymerase chain reaction (RT-PCR) and transmission electron microscopy (TEM). FINDINGS We follow the viral isolation in Vero cell culture from a Mpox positive clinically diagnosed sample and show the infection effects on cellular structures using a TEM. MAIN CONCLUSIONS Understanding the impact of viral growth on cellular structures and its replication kinetics may offer better strategies for the development of new drugs with antiviral properties.

Resumo Este estudo analisa a associação das violências contra a mulher durante a gestação segundo as características socioeconômicas e comportamentais do parceiro íntimo. Trata-se de um estudo transversal analítico em uma maternidade de um município do Espírito Santo com 327 puérperas, onde foram coletados dados sobre as características do parceiro íntimo. O instrumento da Organização Mundial da Saúde foi utilizado para rastrear a violência por parceiro íntimo na gestação. Foram obtidas as associações pela regressão de Poisson bruta e ajustada. Puérperas cujos parceiros consumiam bebida alcoólica, não eram os pais biológicos da criança e se recusavam a usar preservativo tiveram maior prevalência de violência psicológica na gestação. A violência física se associou às puérperas cujos parceiros não trabalhavam e se recusavam a usar preservativo. Puérperas com parceiros que se recusavam a usar preservativo tiveram prevalência nove vezes maior de sofrer violência sexual na gestação. Desse modo, o pré-natal se apresenta como um momento oportuno para abordar os parceiros quanto ao cuidado em saúde e enfrentamento à violência. É necessário ampliar o acolhimento dos homens pelos serviços de saúde para intervir nos fatores que favorecem a violência na gestação.

Abstract This study analyzes the association between violence against women during pregnancy and intimate partner socioeconomic and behavioral characteristics. We conducted an analytical cross-sectional study with 327 postpartum women admitted to a maternity hospital in a city in Espírito Santo, Brazil using a questionnaire to collect data on intimate partner socioeconomic and behavioral characteristics. Intimate partner violence was assessed using questions based on the World Health Organisation instrument “Violence against Women (WHO VAW STUDY)”. Associations were tested using crude and adjusted Poisson regression. The prevalence of psychological violence during pregnancy was higher among women whose partners consumed alcohol, refused to use condoms, and were not the infant’s biological father. Physical violence was associated with women whose partners did not work and refused to use condoms. The prevalence of sexual violence during pregnancy was more than nine times higher among women with partners who refused to use condoms. The findings demonstrate that antenatal care is an opportune time to approach partners about health care and address violence. It is necessary to promote the utilization of health services by men in order to address risk factors for violence during pregnancy.

Resumo Este estudo analisa a associação das violências contra a mulher durante a gestação segundo as características socioeconômicas e comportamentais do parceiro íntimo. Trata-se de um estudo transversal analítico em uma maternidade de um município do Espírito Santo com 327 puérperas, onde foram coletados dados sobre as características do parceiro íntimo. O instrumento da Organização Mundial da Saúde foi utilizado para rastrear a violência por parceiro íntimo na gestação. Foram obtidas as associações pela regressão de Poisson bruta e ajustada. Puérperas cujos parceiros consumiam bebida alcoólica, não eram os pais biológicos da criança e se recusavam a usar preservativo tiveram maior prevalência de violência psicológica na gestação. A violência física se associou às puérperas cujos parceiros não trabalhavam e se recusavam a usar preservativo. Puérperas com parceiros que se recusavam a usar preservativo tiveram prevalência nove vezes maior de sofrer violência sexual na gestação. Desse modo, o pré-natal se apresenta como um momento oportuno para abordar os parceiros quanto ao cuidado em saúde e enfrentamento à violência. É necessário ampliar o acolhimento dos homens pelos serviços de saúde para intervir nos fatores que favorecem a violência na gestação.

Abstract This study analyzes the association between violence against women during pregnancy and intimate partner socioeconomic and behavioral characteristics. We conducted an analytical cross-sectional study with 327 postpartum women admitted to a maternity hospital in a city in Espírito Santo, Brazil using a questionnaire to collect data on intimate partner socioeconomic and behavioral characteristics. Intimate partner violence was assessed using questions based on the World Health Organisation instrument “Violence against Women (WHO VAW STUDY)”. Associations were tested using crude and adjusted Poisson regression. The prevalence of psychological violence during pregnancy was higher among women whose partners consumed alcohol, refused to use condoms, and were not the infant’s biological father. Physical violence was associated with women whose partners did not work and refused to use condoms. The prevalence of sexual violence during pregnancy was more than nine times higher among women with partners who refused to use condoms. The findings demonstrate that antenatal care is an opportune time to approach partners about health care and address violence. It is necessary to promote the utilization of health services by men in order to address risk factors for violence during pregnancy.

In order to contribute to knowledge of the epidemiology of American cutaneous leishmaniasis (ACL) among indigenous people living in sylvatic regions, we studied the sand fly fauna collected in areas of disease transmission in the Brazilian Amazon. Our two datasets reported here are comprised of occurrence data for sand flies from the Suruwaha Indigenous Land in the state of Amazonas collected between 2012-1013, and the Wajãpi Indigenous Land in the state of Amapá collected between 2013-2014. Sand flies were collected using unbaited CDC-like light traps at various sites within each study area and were identified to species-level by taxonomists with expertise in Amazonian fauna. A total of 4,646 records are reported: 1,428 from the Suruwaha and 3,218 from the Wajãpi. These records will contribute to a better understanding of ACL transmission dynamics, as well as the distribution of insect vectors, in these areas.

RESUMO Antecedentes: O Doppler transcraniano (DTC) é uma técnica não invasiva para a avaliação da hemodinâmica cerebral, porém existem controvérsias na literatura sobre sua aplicabilidade preditiva em situações de elevada pressão intracraniana (PIC). Objetivo: Investigar o fluxo sanguíneo cerebral pelo DTC e correlacioná-lo com as variações da PIC na fase aguda da hipertensão intracraniana em modelo animal. Métodos: Dois grupos de animais (suínos) foram submetidos a hipertensão intracraniana secundária à indução de diferentes volumes de hematoma, por meio da insuflação de balão intracraniano controlado com 4 e 7 mL de solução salina fisiológica (grupos A e B, respectivamente). Em seguida, administrou-se infusão venosa de solução salina hipertônica (SSH 3%). Foram coletados os valores dos parâmetros de PIC e DTC (velocidade sistólica [FVs], diastólica [FVd] e média [FVm] do fluxo sanguíneo cerebral), bem como o índice de pulsatilidade (IP). Comparações entre os parâmetros do DTC e o monitoramento da PIC foram realizadas. Resultados: Vinte porcos foram estudados, dez no grupo A e dez no grupo B. Correlação significativa entre IP e PIC foi obtida, principalmente logo após a elevação abrupta da PIC. Não houve correlação entre PIC e FVs, FVd ou FVm separadamente. Também não houve alteração significativa na PIC após a infusão de SSH. Conclusões: Esses resultados demonstram o potencial do IP como um bom parâmetro para a avaliação de pacientes com suspeita de elevação da PIC.

ABSTRACT Background: Transcranial Doppler has been tested in the evaluation of cerebral hemodynamics as a non-invasive assessment of intracranial pressure (ICP), but there is controversy in the literature about its actual benefit and usefulness in this situation. Objective: To investigate cerebral blood flow assessed by Doppler technique and correlate with the variations of the ICP in the acute phase of intracranial hypertension in an animal model. Methods: An experimental animal model of intracranial hypertension was used. The experiment consisted of two groups of animals in which intracranial balloons were implanted and inflated with 4 mL (A) and 7 mL (B) for controlled simulation of different volumes of hematoma. The values of ICP and Doppler parameters (systolic [FVs], diastolic [FVd], and mean [FVm] cerebral blood flow velocities and pulsatility index [PI]) were collected during the entire procedure (before and during hematoma simulations and venous hypertonic saline infusion intervention). Comparisons between Doppler parameters and ICP monitoring were performed. Results: Twenty pigs were studied, 10 in group A and 10 in group B. A significant correlation between PI and ICP was obtained, especially shortly after abrupt elevation of ICP. There was no correlation between ICP and FVs, FVd or FVm separately. There was also no significant change in ICP after intravenous infusion of hypertonic saline solution. Conclusions: These results demonstrate the potential of PI as a parameter for the evaluation of patients with suspected ICP elevation.

Resumo Objetivos Descrever o resultado funcional do tratamento não operatório de fraturas desviadas da extremidade proximal do úmero (FEPU) pela escala da American Shoulder and Elbow Surgeons (ASES, na sigla em inglês) após 12 meses e avaliar se as diferentes classificações e medidas radiográficas iniciais têm correlação com os resultados clínicos. Métodos Foram avaliados em tempos padronizados (3, 6 e 12 meses), 40 pacientes > 60 anos com FEPU submetidos ao tratamento não operatório. Foram utilizadas as escalas da ASES, Constant-Murley e Single Assessment Numeric Evaluation (SANE, na sigla em inglês). As variáveis radiográficas incluíram as classificações de Neer e Resch, a presença de fratura e desvio dos tubérculos, cominuição metafisária, lesão periosteal medial, desvios angulares e translacionais da cabeça no plano coronal e sagital e desvio dos tubérculos. Resultados Observamos resultados pela escala de ASES de 77,7 23,2 para toda a amostra, pelade Constant-Murley de 68,7 16e de 82,6% paraa escala em relação aolado contralateral.AescaladeSANEaos12mesesfoide84,8 19.Oscritériosradiográficosque apresentaram influência negativa no resultado clínico pela escala de ASES aos 12 meses foram a gravidade pela classificação de Neer e pelo desvio angular no plano coronal (mensurado pelo ângulo cabeça-diáfise) e a presença de fratura dos tubérculos. Conclusão O tratamento não operatório de fraturas desviadas da extremidade proximal do úmero em pacientes idosos resulta em bons resultados clínicos. Os resultados clínicos são influenciados negativamente pelo desvio angular da cabeça do úmero e pela presença de fratura dos tubérculos maior e menor, assim como pela classificação de Neer.

Abstract Objectives To describe the functional result of the conservative treatment of displaced proximal humerus fractures (PHF) using the American Shoulder and Elbow Surgeons (ASES) score after 12 months and assess whether the different initial classifications and radiographic measurements are related to clinical results. Methods Forty patients > 60 years old, with displaced PHUs submitted to conservative treatment were evaluated at standardized times (3, 6, and 12 months). The American Society of Shoulder and Elbow Surgeons (ASES), Constant-Murley and Single Assessment Numeric Evaluation (SANE) scales were used as clinical outcomes. Radiographic variables included the Neer and Resch classifications, the presence and displacement of tuberosity fracture, metaphyseal comminution, medial periosteal lesion, and angular and translational deviations of the head in the coronal and sagittal plane. Results The result of the ASES score was 77.7 23.2 for the whole sample, the mean absolute values of the Constant-Murley score were 68.7 16 and 82.6% for the scale relative to the contralateral side. The SANE scale at 12 months was 84.8 19. We observed that the severity of the Neer classification and the coronal plane angular deviation (measured by the head-shaft angle) and the presence of fractures in both tuberosities negatively influenced the ASES score after 12 months of treatment. Conclusion Nonoperative treatment of displaced proximal humerus fractures in elderly patients results in good clinical results. Clinical results are negatively influenced by the angular deviation of the humeral head and the presence of fractures of the greater and lesser tubercles, as well as by the Neer classification.

SUMMARY: The complete petrosphenoidal foramen, or canal, is an eventual and atavistic bony formation at the boundary between the posterior and middle cranial fossa, by occurrence of ossification of the superior petrosphenoidal ligament. This ligament ossification, which has important clinical and surgical significance, can be complete or incomplete, in variable degrees, and is associated with the passageway of neurovascular structures, such as the abducens nerve and the inferior petrosal sinus. This study, conducted with 175 dry skulls that belong to the University of São Paulo’s collection (USP), São Paulo, Brazil, established criteria for a morphological classification of the incomplete petrosphenoid foramen in nine types. In addition, anatomical parameters were established for the morphometric determination of two diameters: the Oblique Diameter (ObDi) and the Maximum Transverse Diameter (MTD). Thus, of the 175 skulls, 146 (83.42 %) presented some of the incomplete forms of the petrosphenoid foramen, and 43 skulls (29.45 %), due to their conservation characteristics, were habilitated to the morphological study, in the classification and in the morphometry (the types I and II of our classification). The type II (incomplete foramen with bony projections of the petrosal tubercle, of the margin of the dorsum of the hypophyseal fossa or of the posterior clinoid process with a distance between them greater than 1mm) and type V (incomplete foramen with a bony projection only in one of the referential structures - posterior clinoid process) were the most common in this study (50 % of the 86 hemiskulls). Morphometry was attributed only to the types: I selar (incomplete foramen with bony projections from the petrosal tubercle and the margin of the dorsum of the hypophyseal fossa with a distance between them less than or equal to 1mm) and to the type II of this classification. The type I selar (9.3 % of the 43 skulls) resulted in an average of 3.25 mm of MTD and 4.63 mm, on average, of ObDi. The type II (25.58 % of the 43 skulls) showed, on average, 4.93 mm of MTD and 7.01 mm of ObDi.

RESUMEN: El foramen o canal petroesfenoidal completo es una formación ósea eventual y atávica en el límite entre las fosas craneal posterior y media, por osificación del ligamento petroesfenoidal superior. Esta osificación del ligamento, que tiene un importante significado clínico y quirúrgico, puede ser completa o incompleta, en grados variables, y está asociada al paso de estructuras neurovasculares, como el nervio abducente y el seno petroso inferior. Este estudio se realizó en 175 cráneos secos pertenecientes a la colección de la Universidad de São Paulo (USP), São Paulo, Brasil. Se establecieron criterios para una clasificación morfológica del foramen petrosfenoidal incompleto en nueve tipos. Además, se establecieron parámetros anatómicos para la determinación morfométrica de dos diámetros: el Diámetro Oblicuo (ObDi) y el Diámetro Transversal Máximo (MTD). Así, de los 175 cráneos, 146 (83,42 %) presentaron alguna de las formas incompletas del foramen petrosfenoidal, y 43 cráneos (29,45 %), por sus características de conservación, fueron habilitados para el estudio morfológico, en la clasificación y en la morfometría (los tipos I y II de nuestra clasificación). El Tipo II (foramen incompleto con proyecciones óseas del tubérculo petroso, del margen del dorso de la fosa hipofisaria o del proceso clinoides posterior con una distancia entre ellos mayor de 1 mm) y el Tipo V (foramen incompleto con proyección ósea solamente en una de las estructuras referenciales - proceso clinoides posterior) fueron los más comunes en este estudio (50 % de los 86 hemiscráneos). La morfometría se atribuyó únicamente al Tipo I selar (foramen incompleto con proyecciones óseas desde el tubérculo petroso y el margen del dorso de la fosa hipofisaria con una distancia entre ellos menor o igual a 1mm) y al Tipo II de esta clasificación. El Tipo I selar (9,3 % de los 43 cráneos) resultó en un promedio de 3,25 mm de MTD y 4,63 mm, en promedio, de ObDi. El Tipo II (25,58 % de los 43 cráneos) mostró, en promedio, 4,93 mm de MTD y 7,01 mm de ObDi.

Resumo O Brasil é um país reconhecido por sua rica biodiversidade, mas também pela rápida perda de parte significativa de seus recursos genéticos in situ. Entre centenas de espécies nativas que apresentam grande potencial de exploração econômica, muitas ainda não são reconhecidas ou ainda não foram descritas. A mangabeira (Hancornia speciosa Gomes) é uma árvore frutífera que se encontra no início do processo de domestificação e possui enorme potencial econômico. No entanto, está sendo afetada pela erosão genética. Neste trabalho, são descritas cinco populações de mangabeira localizadas em distintas unidades de conservação, nas regiões Centro-Oeste e Nordeste do Brasil, onde ocorrem as variedades pubescens (típica) e speciosa. Mostramos que, mesmo em áreas protegidas, plantas de mangabeira não estão nas melhores condições de conservação. Como as áreas estão localizadas em biomas e em condições ambientais diversas, essas populações oferecem oportunidade para aprimorar o conhecimento sobre a espécie e para mapear suas áreas de ocorrência. Destacamos a relevância de manter as populações de mangabeira como reservatórios de recursos genéticos, o que potencializa a utilização da variabilidade genética desta espécie. Essas descrições destacam a importância significativa da manutenção de áreas protegidas como uma estratégia adequada para a conservação in situ.

Abstract Brazil, a recognized country for its rich biodiversity, is also known for the rapid loss of a significant part of its in situ genetic resources. Among hundreds of native species that have great potential for economic exploitation, many are not yet acknowledged or are yet to be described. The mangabeira (Hancornia speciosa Gomes) is a fruit tree at the begging of the domestication process and has enormous economic potential. However, it is being affected by genetic erosion. In this communication, we describe five populations of mangabeira located in distinct protected areas in the Midwest and Northeast regions of Brazil, where the varieties speciosa and pubescens occur. We show that even in protected areas, mangabeira plants are not in the best situation for conservation. The areas are located in diverse biomes and environmental conditions; therefore, such populations provide an opportunity to improve the knowledge about the species and map its areas of occurrence. We highlight the relevance of maintaining mangabeira populations as reservoirs of genetic resources, which leverage the utilization of the genetic variability of this species. These descriptions highlight the significant importance of maintaining protected areas as a suitable strategy for in situ conservation.