Search results for "ACCURACY"

Reasons of irregularity of seed's distribution in the divider heads of air-seeders

2017

ISBN : 978-3-18-092300-0; International audience; Modern seeding equipment must allow to cultivate sizeable areas efficiently and finalize the seeding in a short amount of time. Air-seeder is a solution for a fast seeding: seeds are conveyed from the high-capacity seed hopper to the coulter-bar by an air-stream. Taking into account the complexity of this type of seed drills, they stay little-studied. Few developments have been done on divider headers responsible of distribution accuracy. This paper deals with a study on the influence of divider head geometry and functioning conditions on the seed's distribution accuracy. Moreover, observation of the seed's behaviour is done using a high-spe…

Auditiivisen ja kielellisen harjoittelun vaikutus kolmannella luokalla olevien heikkojen lukijoiden lukutaitoon

2012

Current transformers effects on the measurement of harmonic active power in LV and MV networks

2011

The harmonic active power is used to determine the location of polluting loads, the direction of harmonic power flow and to estimate how consequential a certain current harmonic source is. The highest uncertainties, when measuring harmonic active power, are introduced by the current and voltage transducers. This paper presents experimental results which show the impact of current transformers (CTs) on the accuracy of the harmonic power measurements. An expression for the evaluation of the power error in distorted conditions was developed which can be easily utilized in the case of linear current transducers. It is shown how CTs cannot be considered linear transducers and how the higher the …

Scaffolding self-regulated learning from causal-relations texts: Diagramming and self-assessment to improve metacomprehension accuracy?

2023

AbstractThe accuracy of students’ relative comprehension judgments when reading texts is typically rather low. This has been ascribed to students grounding their comprehension judgments on cues that are not diagnostic of their actual comprehension level. Asking students to complete causal diagrams—a diagramming scaffold—before judging comprehension has proved effective in providing them with more diagnostic cues and thereby fostered metacomprehension accuracy and self-regulated learning. However, there is still room for improvement. We investigated experimentally whether adding the instruction to students to self-assess their causal diagrams: (1) would lead to more accurate judgments than c…

Etnolingwistyczne rozważania na temat przekładu na język angielski leksemów typu 'pierogi ruskie', 'barszcz ukraiński', 'fasolka po bretońsku', 'ryba…

2018

In today’s world, international tourism is one of the most quickly and dynamically developing sectors of economy. In the year 2012 – for the first time in the history of mankind – international tourist arrivals exceeded the milestone of one billion tourists globally, and within merely the 20 years’ time, i.e. between 1995 and 2015, the number of people travelling abroad as tourists more than d o u b l e d. The phenomenon also refers to the inbound tourism in Poland – with more than 16 million international tourists who visited our country in 2015. Obviously, on the one hand, the fact is highly beneficial to the state’s international prestige and economy, but on the other one – it does creat…

CEUS LI-RADS: a pictorial review

2020

AbstractContrast-enhanced ultrasound (CEUS) greatly improved the diagnostic accuracy of US in the detection and characterization of focal liver lesions (FLLs), and it is suggested and often included in many international guidelines as an important diagnostic tool in the imaging work-up of cirrhotic patients at risk for developing hepatocellular carcinoma (HCC). In particular, CEUS Liver Imaging Reporting and Data System (LI-RADS) provides standardized terminology, interpretation, and reporting for the diagnosis of HCC. The aim of this pictorial essay is to illustrate CEUS features of nodules discovered at US in cirrhotic liver according to LI-RADS categorization.

Motor imagery in unipolar major depression

2014

International audience; Background: Motor imagery is a potential tool to investigate action representation, as it can provide insights into the processes of action planning and preparation. Recent studies suggest that depressed patients present specific impairment in mental rotation. The present study was designed to investigate the influence of unipolar depression on motor imagery ability. Methods: Fourteen right-handed patients meeting DSM-IV criteria for unipolar depression were compared to 14 matched healthy controls. Imagery ability was accessed by the timing correspondence between executed and imagined movements during a pointing task, involving strong spatiotemporal constraints (spee…

Diagnostische Aussagekraft von Sonographie und Computertomographie bei Lebermetastasen

1988

The diagnostic accuracy of sonography and computed tomography for detecting liver metastases was analysed in 526 patients with tumors and the findings were compared with those at laparotomy and at post mortem. The surgical protocols were analysed in respect of the primary tumour, the frequency of metastases and the number, localisation and size of metastases. A comparison of sonography and CT showed a higher sensitivity for CT (57.1%) compared with sonography (52.3%) although specificity was slightly higher for sonography. Liver metastases greater than 15 mm were detected by sonography (80.5%) and CT (92%), with much higher sensitivity. CT also proved superior, since the results depended le…

A new tool for sepsis screening in the Emergency Department

2021

Abstract Objectives In this study, we developed and evaluated the diagnostic accuracy of the Sepsis Index for early sepsis screening in the Emergency Department (ED). Methods Sepsis Index is based on the combination of monocyte distribution width (MDW) and mean monocyte volume (MMV). Sepsis Index≥1 was selected to define sepsis. We tested its diagnostic accuracy in an ED population stratified in four groups: controls, Systemic Inflammatory Response Syndrome (SIRS), infection, and sepsis, according to Sepsis-2 criteria. Results Patients with sepsis displayed higher median Sepsis Index value than patients without sepsis. At the receiver operating characterictis (ROC) curve analysis for the pr…

P1296 : Blocking NMDA receptors prolongs survival in rats with acute liver failure by dual protective mechanisms in kidney and brain

2015

were 1094.67±239.37mIU/ml. The difference in values between these groups was statistically significant (p = 0.004). There was a statistically significant difference in total leucocyte count, serum creatinine, INR and cleaved CK18 M30 levels among those that survived vs expired. Multivariate analysis found that all these independently predict mortality. A receiver operating characteristic curve was drawn for the new score. The score found was compared with the King’s College criteria and the MELD score, the new scoring system was found to have higher sensitivity and specificity for mortality compared with other standard prognostic markers in ALF, and has a better diagnostic accuracy (Table 1…