#prediction model

Can a prediction model improve major trauma triage? with @clifford0854 #triage #MTC #FOAMed @stemlyns #tru

Ed – Tom Shanahan (here in Virchester) recently published a paper on whether a Dutch prediction model is better at identifying major trauma patients than existing methods. The publication provoked an interesting debate on Twitter and so we have asked him to summarise and explain the study in more detail here. The project used data provided by the MAjor Trauma Triage Study (MATTS) to validate…

Just found out about this. It’s a robust model to predict how bad this is gonna be here in the US. You can check state-by-state to find out if/when your state’s hospital system will be overloaded. It also shows what measures are in place in your state, which is what the preview image is showing.

The major objectives of this study were to identify spectral characteristics associated with rice yield and to establish their quantitative relationships. Field experiments were conducted at Shi-Ko experimental farm of TARI’s Chiayi Station, during 2001 to 2005. Rice cultivar Tainung 67 (Oryza sativa L.), the major cultivar grown in Taiwan, was used in the study. Various levels of rice yield were obtained via nitrogen application treatments. Canopy reflectance spectra were measured during entire growth period and dynamic changes of characteristic spectrum were analyzed. Relationships among rice yields and characteristic spectrum were studied to establish yield estimation models suitable for remote sensing purposes. Spectrum analysis indicated that the changes of canopy reflectance spectrum were least during booting stages. Therefore, the canopy reflectance spectra during this period were selected for model development. Two multiple regression models, constituting of band ratios (NIR/RED and NIR/GRN) were then constructed to estimate rice yields for first and second crops separately. Results of the validation experiments indicated that the derived regression equations successfully predicted rice yield using canopy reflectance measured at booting stage unless other severe stresses occurred afterward.

We also integrated multiple regression models, derived from reflectance spectrum measurements and using band ratios (NIR/RED and NIR/GRN) as independent variables, with SPOT 5 multispectral images taken at booting stage to predict rice yield before harvest. A 4.8-ha paddy rice field was used as testing ground for the accuracy of prediction with the rice yield prediction model. Within the site, different rice yield scenarios were produced by using combinations of rice varieties, Japonica and Indica type, nitrogen rate and drought treatments. Rice yields harvested in 10m X 10m mesh were used as ground truth data for comparison. The regional rice yield map is produced with the rice yield prediction model using SPOT 5 images taken at booting stage in this study. The results from the regional rice yield map shows that the relative errors between actual yield and predicted yield in the first season and second season in 2014 are lower than 5%. Those have demonstrated its potential for using SPOT 5 images to estimate the regional rice yield with the rice yield prediction model derived from reflectance spectrum measurements and using band ratios (NIR/RED and NIR/GRN) as independent variables.

Author(s) Details

K. W. Chang College of Tourism Management, Baise University, Guangxi, 533000, China.

K. X. Li College of Tourism Management, Baise University, Guangxi, 533000, China.

L. H. Xie College of Tourism Management, Baise University, Guangxi, 533000, China.

In this study, core samples were taken from column or reinforced wall in order to make reinforcement or restoration. The effect of the element height and volume of voids of these samples to the compressive strength were investigated. C25 type ready to use concrete was used and a column without steel was produced. During the production process, 15 cm reference cube samples were taken from the fresh concrete. After 28 days, 8 cores from reference cubes and 128 samples from column were taken and their compressive strengths were determined. As a result, the average compressive strength of the reference core samples was 36.95 Mpa and according to the height compressive strengths of other samples was ranging between 37.3 and 43.0 Mpa. The ratio of the increasing of the compressive strength changes between 0.95 and 16.37% according to the reference sample. Based on the experimental results, fuzzy Logic method was used for modelling of the experimental results. The paper demonstrates that fuzzy logic can be successfully used in modelling the compressive strength of concrete for different height and volume of voids. This model enables us to easily and reliably estimate the compressive strength of concrete.

Author(s) Details

Lecturer Metin Uzunoglu Department of Civil Engineering, Faculty of Technology, Konuralp, Düzce, Turkey.

Prof. Dr. Ercan Ozgan Department of Architecture, Faculty of Art Design and Architecture, Konuralp, Düzce, Turkey.

Dr. Tuncay Kap Department of Constructin Technology, Düzce Vocational School, Düzce, Turkey.

The Danish chronic subdural hematoma study—predicting recurrence of chronic subdural hematoma

Acta Neurochirurgica (2019) 161:885–894

An increasing incidence of chronic subdural hematoma (CSDH) and an unchanging high recurrence rate of 10–20% call for individualized treatment. The aim of this study was to establish individualized prediction models for the risk of recurrence treating death as a competing risk.

Methods A retrospective national cohort of unilateral CSDH was included for…

The Danish chronic subdural hematoma study—predicting recurrence of chronic subdural hematoma

Acta Neurochirurgica (2019) 161:885–894

An increasing incidence of chronic subdural hematoma (CSDH) and an unchanging high recurrence rate of 10–20% call for individualized treatment. The aim of this study was to establish individualized prediction models for the risk of recurrence treating death as a competing risk.

Methods A retrospective national cohort of unilateral CSDH was included for…

Premature Deaths to Double by 2100 Due to US Wildfire Smoke

Wildfire smoke associated deaths have been predicted to increase by 2100 in the US, says a new prediction model study. The results of this stud are published in the journal of GeoHealth.

The number of human deaths from chronic inhalation of wildfire smoke could increase to more than 40,000 per year by the end of the 21st century, up from around 15,000 per year today.

‘It was also found that…