Visible and shortwave near infrared spectroscopy for predicting sugar content of sugarcane based on a cross-sectional scanning method

The need for a reliable in-field quality measurement in the sugarcane industry is growing as the quality of sugarcane could vary significantly across the field. However, current monitoring systems in this industry only monitor crop yield and do not have the ability to measure the product quality. Thus, the potential of the visible/shortwave near infrared (vis/SW-NIR) spectroscopic technique as a low-cost alternative to predict sugar content from sugarcane stalks was investigated. Two hundred and ninety-two internode samples were extracted from three different sugarcane varieties to assess the ability of this technique. Each sample was cut into four sections and the spectra collected from the cross-sectional surface of each section were later correlated with its sugar content (°Brix). Partial least square (PLS) models were developed using calibration samples. The best model predicted samples in a prediction set had a coefficient of determination (r2) of 0.87 and root means square error of prediction (RMSEP) of 1.45 °Brix. The value of the ratio of the standard deviation to the standard error of prediction (RPD) was 2. The variations of °Brix and prediction accuracy along the individual internode were 8.7 and 13%, respectively. These results indicated the vis/SW-NIR spectroscopy could be applied to predict °Brix values from sugarcane stalks based on a cross-sectional scanning method

Qualidade de vida em mulheres submetidas à mastectomia comparada com aquelas que se submeteram à cirurgia conservadora: uma revisão de literatura Quality of life of women recovering from breast cancer after being subjected to mastectomies compared with those who had conservative surgery: a review of the literature

Este estudo revisa a literatura sobre a qualidade de vida (QV) de mulheres com câncer de mama submetidas à mastectomia comparadas àquelas que realizaram cirurgia conservadora. A seleção final resultou em oito ensaios clínicos randomizados. Os estudos foram comparados quanto ao momento em que a QV foi avaliada, se durante ou após o tratamento, quanto aos instrumentos que mensuraram a QV, e quanto à metodologia e resultados. Os resultados de quatro estudos apontam para maior impacto negativo na QV em mulheres mastectomizadas; outros quatro estudos não evidenciam diferenças na QV entre os grupos que passaram pelos dois tipos de intervenção. Medidas objetivas de QV poderão ajudar a identificar situações potencialmente difíceis da vida diária e auxiliar no planejamento de ações de promoção da saúde de mulheres que passaram por cirurgia para câncer de mama.<br>This study reviews the literature on the quality of life (QoL) of women with breast cancer who have been subjected to mastectomy, compared with those who had conservative surgery. Eight random controlled trials were selected. The studies were compared with respect to the moment quality of life was assessed (whether during or after treatment for breast cancer), the measurement tools of quality of life used, and also the methodology and results achieved. The results of four studies suggest a stronger negative impact in the QoL of mastectomized women; the other four studies showed no difference between the groups in terms of QoL. Objective measurements of quality of life may help identify potentially critical situations of daily life and assist in planning actions to promote health among women who have been subjected to breast cancer surgery

Outcomes after perioperative SARS-CoV-2 infection in patients with proximal femoral fractures: an international cohort study

Objectives Studies have demonstrated high rates of mortality in people with proximal femoral fracture and SARS-CoV-2, but there is limited published data on the factors that influence mortality for clinicians to make informed treatment decisions. This study aims to report the 30-day mortality associated with perioperative infection of patients undergoing surgery for proximal femoral fractures and to examine the factors that influence mortality in a multivariate analysis. Setting Prospective, international, multicentre, observational cohort study. Participants Patients undergoing any operation for a proximal femoral fracture from 1 February to 30 April 2020 and with perioperative SARS-CoV-2 infection (either 7 days prior or 30-day postoperative). Primary outcome 30-day mortality. Multivariate modelling was performed to identify factors associated with 30-day mortality. Results This study reports included 1063 patients from 174 hospitals in 19 countries. Overall 30-day mortality was 29.4% (313/1063). In an adjusted model, 30-day mortality was associated with male gender (OR 2.29, 95% CI 1.68 to 3.13, p80 years (OR 1.60, 95% CI 1.1 to 2.31, p=0.013), preoperative diagnosis of dementia (OR 1.57, 95% CI 1.15 to 2.16, p=0.005), kidney disease (OR 1.73, 95% CI 1.18 to 2.55, p=0.005) and congestive heart failure (OR 1.62, 95% CI 1.06 to 2.48, p=0.025). Mortality at 30 days was lower in patients with a preoperative diagnosis of SARS-CoV-2 (OR 0.6, 95% CI 0.6 (0.42 to 0.85), p=0.004). There was no difference in mortality in patients with an increase to delay in surgery (p=0.220) or type of anaesthetic given (p=0.787). Conclusions Patients undergoing surgery for a proximal femoral fracture with a perioperative infection of SARS-CoV-2 have a high rate of mortality. This study would support the need for providing these patients with individualised medical and anaesthetic care, including medical optimisation before theatre. Careful preoperative counselling is needed for those with a proximal femoral fracture and SARS-CoV-2, especially those in the highest risk groups. Trial registration number NCT0432364