Acessos de mandioca açucarada coletados no Nordeste paraense possuem o mesmo genótipo detectado por marcadores microssatélites.

A mandioca é encontrada na região Norte do Brasil e é usada como fonte de subsistência para muitas famílias. A mandioca açucarada ou mandiocaba, é um tipo de mandioca que armazena em suas raízes, além do amido, açúcares livres como reservas. Atualmente, vêm recebendo destaque pelo seu potencial para uso na fabricação de álcool combustível, devido ao acúmulo de glicose que pode ser convertida em etanol diretamente. Foi realizado teste para avaliar a diversidade genética de acessos de mandiocas açucaradas coletadas em diferentes locais do estado do Pará mantidos no banco de germoplasma da Embrapa Amazônia Oriental. Foi realizada a genotipagem molecular de nove acessos de mandioca açucarada e um acesso de mandioca brava com marcadores microssatélites. Para isso, foram utilizados 13 primers microssatélites e a corrida dos produtos amplificados foi realizada em géis de poliacrilamida 6%. Após a análise dos géis, foi verificado que todas as nove amostras de mandioca açucarada possuíam o mesmo genótipo, sendo verificada baixa variabilidade genética para esse grupo de mandiocas

Linfangioleiomiomatose pulmonar inicial provável e linfangioleiomioma mediastinal

A 68 year old woman was submitted to a mediastinal lymphangioleiomyoma resection found in a follow-up study of lower left lung resection due to bronchiectasis complicated by chylothorax. This led to a revaluation of the pulmonary specimen that revealed, in addition to inflammatory bronchiectasis, small spindle cell nodules in the lung parenchyma, similar to minute pulmonary meningothelial-like nodules, but with smooth muscle actin immunohistochemical positivity. The possibility of initial pulmonary development of lymphangioleiomyomatosis is discussed

A study on shrinkage and warpage of rotational moulded polyethylene

Warpage and poor dimensional stability of rotomoulded products are two of the main obstacles to the use of this technique in the production of engineering parts. The knowledge of the effect of the processing conditions on the shrinkage of rotomoulded parts will allow overcoming some of the restrictions of this process. In the present work the influence of the processing conditions on the development of shrinkage and warpage of rotomoulded parts was studied. The moulding of the parts was performed using a rotational moulding machine build at the University of Minho. The shrinkage and the warpage of the moulded parts were assessed using 3D MMC (3D measuring Machine Control) equipment, and understanding the microstructural development

Reduced Atlantic variability in the mid-Pliocene

This study evaluates interannual-to-decadal sea surface temperature (SST) variability in the mid-Pliocene Warm Period within the Pliocene Model Intercomparison Project (PlioMIP). Our results show significantly reduced variability at low latitudes and mid-latitudes in the mid-Pliocene in comparison to the pre-industrial climate. At high latitudes of both hemispheres, the SST variability has increased. Latitudinal changes are likely driven by changes in the meridional SST gradient. Results with respect to the main Atlantic SST modes of variability show that the Atlantic Multidecadal Variability shifts southward and expands eastward due to a southward shift in the North Atlantic Drift position. The Atlantic Meridional Mode amplitude weakens due to increased SST gradient between its two poles. The South Atlantic Subtropical Dipole significantly shifts its southwestern pole towards the South American coast. Moreover, all Atlantic modes of variability have shifted their respective frequencies towards lower values. Our analyses on the PlioMIP simulation results provide a useful constraint in future projections associated with a warmer world when assessing Atlantic SST variability

Resposta da produção de matéria seca do meloeiro à omissão de micronutrientes em um solo de Juazeiro - BA.

O trabalho teve como objetivo avaliar o efeito da omissão de B, Cu, Fe, Mn e Zn em plantas de melão (Cucumis melo L.) cultivadas em vasos contendo um solo argiloso de Juazeiro-BA, em ambiente protegido. Foram testados sete tratamentos: completo, testemunha, omissão de B, de Cu, de Fe, de Mn ou de Zn, dispostos no delineamento inteiramente casualizado, com quatro repetições. Avaliou-se o peso da matéria seca da parte aérea e das raízes aos 55 dias após a emergência das plantas. A omissão de Cu e Zn, provocou uma redução significativa na produção de matéria seca da parte aérea. Não houve efeito dos tratamentos sobre a matéria seca das raízes.Suplemento. Edição de Resumos expandidos e palestras do 43. Congresso Brasileiro de Olericultura, Recife, jul. 2003

Social Solidarity and the Ontological Foundations of Exclusionary Nationalism: Durkheim and Levinas on the Historical Manifestations of Authoritarian Populism

This paper seeks to explore the dynamics of contemporary authoritarian populism from a historical perspective, relying on the approaches of Durkheim’s experimental sociology and Levinas’s ethical phenomenology. By reading the works of these two thinkers in concert, a pathology is exposed within this particular form of politics in that the State must necessarily close itself off to the critique of exteriority. Our reading of Durkheim explores the social pathology of nationalism while our reading of Levinas demonstrates the philosophical dimension of this pathology as the inevitable outcome of any philosophical thinking which privileges ontology above all else. The way these thinkers address these themes can serve as a guide as we attempt to overcome the same pathology today in various forms of authoritarian populism that adopt the same mentalities and methods utilized by past forms of this corrupted idealism

The Oral-Vascular-Pulmonary Infection Route:a Pathogenic Mechanism Linking Oral Health Status to Acute and Post-Acute COVID-19

Purpose of Review: In recent years, much attention has focused on the role of poor oral health in the development or worsening of systemic diseases, including COVID-19. The mouth is an important site of cellular infection early in the disease course of COVID-19. We review how oral pathology, and specifically viral infection within the oral cavity, may mediate the disease severity and duration of COVID-19. In particular, the previously reported model of SARS-CoV-2 vascular delivery from the mouth to the lungs via the bloodstream is revisited.Recent Findings: We previously proposed that an oral-vascular-pulmonary route of infection could facilitate severe lung disease in COVID-19. This pathway could also explain the vital link between periodontitis and COVID-19 severity, including higher mortality risk. This model of pathogenesis is reconsidered in light of recent findings regarding the involvement of the mouth as a viral reservoir, and pathological processes in the blood, pulmonary vasculature, and elsewhere in the body. Oral dysbiosis in COVID-19 and the effect of oral hygiene in mitigating disease severity are discussed. The evidence for viral persistence in the mouth and intravascular viral passage from the mouth to the rest of the body via blood is also discussed in the context of post-acute COVID (long COVID).Summary: High viral load in the mouth and poor oral health status are associated with COVID-19 disease severity, increasing the risk of death. Pathophysiological links between viral activity in the mouth, oral health status, and disease outcome in the lungs and blood provide a rationale for further evaluation of the oral-vascular-systemic pathway in patients with acute COVID-19 and long COVID. The potential benefits of oral hygiene protocols and periodontal procedures in COVID-19 also warrant further investigation

The Oral-Vascular-Pulmonary Infection Route:a Pathogenic Mechanism Linking Oral Health Status to Acute and Post-Acute COVID-19

Purpose of Review: In recent years, much attention has focused on the role of poor oral health in the development or worsening of systemic diseases, including COVID-19. The mouth is an important site of cellular infection early in the disease course of COVID-19. We review how oral pathology, and specifically viral infection within the oral cavity, may mediate the disease severity and duration of COVID-19. In particular, the previously reported model of SARS-CoV-2 vascular delivery from the mouth to the lungs via the bloodstream is revisited.Recent Findings: We previously proposed that an oral-vascular-pulmonary route of infection could facilitate severe lung disease in COVID-19. This pathway could also explain the vital link between periodontitis and COVID-19 severity, including higher mortality risk. This model of pathogenesis is reconsidered in light of recent findings regarding the involvement of the mouth as a viral reservoir, and pathological processes in the blood, pulmonary vasculature, and elsewhere in the body. Oral dysbiosis in COVID-19 and the effect of oral hygiene in mitigating disease severity are discussed. The evidence for viral persistence in the mouth and intravascular viral passage from the mouth to the rest of the body via blood is also discussed in the context of post-acute COVID (long COVID).Summary: High viral load in the mouth and poor oral health status are associated with COVID-19 disease severity, increasing the risk of death. Pathophysiological links between viral activity in the mouth, oral health status, and disease outcome in the lungs and blood provide a rationale for further evaluation of the oral-vascular-systemic pathway in patients with acute COVID-19 and long COVID. The potential benefits of oral hygiene protocols and periodontal procedures in COVID-19 also warrant further investigation

Item response theory analysis of the recoded Internet Gaming Disorder Scale-Short-Form (IGDS9-SF)

Based on the nine criteria for Internet gaming disorder (IGD) in DSM-5, the Internet Gaming Disorder Scale 9-Short Form (IGDS9-SF; Pontes and Griffiths 2015) is the most widely used questionnaire for assessing IGD. The present study examined support for the unidimensional factor structure of the instrument, with a group of 868 adolescent and adult gamers from the USA, with criteria recoded as present or absent. The two-parameter logistic model (2PLM) was used to examine the item response theory properties of the criteria included in the measure. Confirmatory factor analysis supported the one-factor model. The 2PLM analysis indicated that all the criteria were strong discriminators of high and low latent IGD. Furthermore, the items measured more of the GAD dimension and with more precision from around +2 SD from the mean trait level. The implications of the findings for interpreting the IGDS9-SF scores for clinical practice are discussed