Congenital Volkmann ischemic contracture – A case report

A contractura isquémica congénita de Volkmann é uma entidade rara, observada em recém-nascidos logo após o parto, caracterizada clinicamente por uma placa necrótica que atinge, geralmente, um dos membros superiores e que se faz acompanhar de paralisia flácida. Ocorre no período intrauterino e surge devido a compressão mecânica do membro. O seu mau posicionamento, a constrição por banda aminiótica, a existência de oligoâmnios e de distocias são alguns dos possíveis factores implicados. A compressão conduz a um síndrome de compartimento que induz isquemia e necrose da pele, músculos e nervos. O tratamento é cirúrgico, implicando desbridamento da placa de necrose e eventual recurso a um enxerto cutâneo. Relatamos o caso clínico de um recém-nascido de 2 dias de vida com uma contractura isquémica congénita de Volkmann do membro superior esquerdo, induzida pela presença de oligoâmnios

Procedimentos para o monitoramento populacional de Diaphorina Citri , vetor do Huanglongbing (HLB) dos citros.

Após o registro do agente etiológico do HLB, a bactéria Candidatus liberibacter spp. no Brasil em 2004, o inseto vetor Diaphorina citri (Hemiptera: Psyllidae) antes considerado uma praga secundária dos citros, ganhou o status de inseto-praga de grande importância

Understanding the dynamic of tropical agriculture for remote sensing applications: a case study of Southeastern Brazil.

Abstract: The agricultural activity can greatly benefit from remote sensing technology (RS). Optical passive RS has been vastly explored for agricultural mapping and monitoring, in despite of cloud cover issue. This is observed even in the tropics, where frequency of clouds is very high. However, more studies are needed to better understand the high dynamism of tropical agriculture and its impact on the use of passive RS. In tropical countries, such as in Brazil, the use of current agricultural technologies, associated with favourable climate, allow the planting period to be wide and to have plants of varying phenological cycles. In this context, the main objective of the current study is to better understand the dynamics of a selected area in Southeast of São Paulo state, and its impact on the use of orbital passive RS. For that purpose, data (from field and satellite) from 55 agricultural fields, including annual, semi-perennial and perennial crops and silviculture, were acquired between July 2014 and December 2016. Field campaigns were conducted in a monthly base to gather information about the condition of the crops along their development (data available in a website). Field data corresponding to the 2014-2015 crop year were associated with a time series of Landsat-8/OLI RGB false-colour compositions images and MODIS/Terra NDVI profiles. The type of information that can be extracted (such as specie identification, crop management practices adopted, date of harvest, type o production system used etc) by combining passive remote sensing data with field data is discussed in the paper

Monitoramento populacional de Diaphorina citri Kuwayama, 1908 (Hemiptera: Liviidae) em cinco municípios do Recôncavo da Bahia.

O psilídeo Diaphorina citri é um importante vetor da bactéria Candidatus liberibacter spp., causadora do HLB (Huaglongbing), doença mais devastadora dos citros, assumindo, assim, o status de principal praga nessa cultura. O agente etiológico do HLB foi registrado no Brasil em 2004, primeiramente em São Paulo e, posteriormente, em Minas Gerais e Paraná

Qualidade da classificação automática de imagens de sensoriamento remoto em trabalhos apresentados nas edições anteriores do SBSR.

Abstract: A study has been carried out considering 18 years of papers published in the Simpósio Brasileiro de Sensoriamento Remoto (Brazilian Remote Sensing Symposium) related to the subject of satellite image classification. The aim of the study was to assess the degree of progress made in thematic mapping through developments in classification algorithms, different approaches (per-pixel or object-based) and methods (unsupervised and supervised). The result of 238 reported classification experiments were quantitatively analyzed through Kappa Index (KI) results. Several parameters were used to relate the experiments, as type of approach, method, number of samples and classes, used sensor system, etc. Overall, the results showed that no significant improvement was found in KI results after 18 years SBSR. The mean and KI values was found to be 0.71 and standard deviation of 0.14. Relations between KI results and number of class, type of approach and method could not be found. Thirty one percent of the experiments analyzed did not present sufficient methodological information, thus, they were excluded from the analysis

Do emotion regulation difficulties affect outcome of intensive trauma-focused treatment of patients with severe PTSD?

Background: There is ongoing debate as to whether emotion regulation problems should be improved first in order to profit from trauma-focused treatment, or will diminish after successful trauma processing. Objective: To enhance our understanding about the importance of emotion regulation difficulties in relation to treatment outcomes of trauma-focused therapy of adult patients with severe PTSD, whereby we made a distinction between people who reported sexual abuse before the age of 12, those who were 12 years or older at the onset of the abuse, individuals who met the criteria for the dissociative subtype of PTSD, and those who did not. Methods: Sixty-two patients with severe PTSD were treated using an intensive eight-day treatment programme, combining two first-line trauma-focused treatments for PTSD (i.e. prolonged exposure and EMDR therapy) without preceding interventions that targeted emotion regulation difficulties. PTSD symptom scores (CAPS-5) and emotion regulation difficulties (DERS) were assessed at pre-treatment, post-treatment, and six month follow-up. Results: PTSD severity and emotion regulation difficulties significantly decreased following trauma-focused treatment. While PTSD severity scores significantly increased from post-treatment until six month follow-up, emotion regulation difficulties did not. Treatment response and relapse was not predicted by emotion-regulation difficulties. Survivors of childhood sexual abuse before the age of 12 and those who were sexually abused later in life improved equally well with regard to emotion regulation difficulties. Individuals who fulfilled criteria of the dissociative subtype of PTSD showed a similar decrease on emotion regulation difficulties during treatment than those who did not. Conclusion: The results support the notion that the severity of emotion regulation difficulties is not associated with worse trauma-focused treatment outcomes for PTSD nor with relapse after completing treatment. Further, emotion regulation difficulties improved after trauma-focused treatment, even for individuals who had been exposed to early childhood sexual trauma and individuals with dissociative subtype

Using Landsat 8 image time series for crop mapping in a region of Cerrado, Brazil.

Abstract: The objective of this research is to classify agricultural land use in a region of the Cerrado (Brazilian Savanna) biome using a time series of Enhanced Vegetation Index (EVI) from Landsat 8 OLI. Phenological metrics extracted from EVI time series, a Random Forest algorithm and data mining techniques are used in the process of classification. The area of study is a region in the Cerrado in a region of the municipality of Casa Branca, São Paulo state, Brazil. The results are encouraging and demonstrate the potential of phenological parameters obtained from time series of OLI vegetation indices for agricultural land use classification

Crystal structures and Hirshfeld surfaces of two 1,3-benzoxathiol-2-one derivatives

Acknowledgements We thank the EPSRC National Crystallography Service (University of Southampton) for the X-ray data collections.Peer reviewedPublisher PD