Background Data Resampling for Outlier-Aware Classification

2020 ◽  
Author(s):  
Yi Li ◽  
Nuno Vasconcelos
Keyword(s):  
Background Data

THE IMPORTANCE OF THE RED BOOK OF SOILS FOR MONITORING AND JUSTIFICATION OF CONSERVATION MEASURES

2020 ◽  
Author(s):  
O.S. Bezuglova ◽  
Keyword(s):  
Chemical Properties ◽  
Natural State ◽  
Soil Maps ◽  
Rostov Region ◽  
Conservation Measures ◽  
Background Data ◽  
The Russian Federation ◽  
Physical And Chemical ◽  
And Chemical Properties

Rostov Region belongs to the highly protected natural territories characterized by the continuous plowing. There territories are the only reserves with the soils preserved in their natural state. However, these areas often lack detailed information about the soils quality and composition. Surveying soils on these territories is crucial for determination of their basic physical and chemical properties. The resulted compilation of soil maps could lay a foundation for creating the Red Book of Soils and the formation of a section in the soil-geographical database of the Russian Federation. Subsequently, such information can be used as a background data for the main types of soils in the region. It will be also valuable during monitoring and justification of conservation measures.

INTERLEUKIN 6 AND CRP IN THE PREDICTION THE SEVERITY IN PATIENTS OF ACUTE PANCREATITIS

2015 ◽  
pp. 29-35
Author(s):  
Van Xung Nguyen ◽  
Van Huy Tran
Keyword(s):  
Acute Pancreatitis ◽  
Key Words ◽  
Interleukin 6 ◽  
Accuracy Rate ◽  
Background Data ◽  
Single Marker ◽  
Key Words Interleukin 6

Background: Data about the value of interleukin 6 and CRP in the prediction of severity of acute pancreatitis (AP) is still limited. This study is aimed at assessing the values of interleukin 6 and CRP in the prediction the severity of AP. Patients and methods: 55 patients with AP were enrolled. Interleukin was measured at 2 times: the 1st and the 3rd days. Results: IL-6 level day 1 in severe AP (168.86 ± 70.65 pg/ml) was significantly higher than in mild AP (89.54 ± 28.81 pg/ml) and IL-6 day 3 in severe AP (58.64 ± 20.77 pg/ml) significantly higher than mild AP (29.73 ± 14.88 pg/ml). concerning the prediction of severity of AP, IL-6 in day 1 (with cut-off 113.36 pg/ml) had the sensitivity 81.25% and the specificity 84.64%, PPV 68.4% and NPV 91.7%, accuracy rate 88.8%, AUC 0.888 and respectively in day 3 (with cut-off 41.38 pg/ml were 87.5%; 87.18%; 73.7%; 4.4%; 86.7%; 0.867. The values in prediction of severity were significantly higher when combining IL 6 and CRP in compare with the single marker. Conclusion: Combining Interleukin 6 and CRP may have a good value in the prediction of the severity of AP. Key words: Interleukin 6, CRP, acute pancreatitis, severity.

EFFICACY OF TENOFOVIR IN PATIENTS OF HBV-RELATED CIRRHOSIS

2016 ◽  
pp. 25-29
Author(s):  
Van Huy Tran ◽  
Thi Huyen Thuong Nguyen
Keyword(s):  
Side Effects ◽  
Serum Creatinine ◽  
Key Words ◽  
Tenofovir Disoproxil Fumarate ◽  
Hbv Dna ◽  
Treatment Side Effects ◽  
Background Data ◽  
Key Words Cirrhosis

Background: Data about efficacy of Tenofovir in patients of HBV –related cirrhosis in Vietnam was still limited. This study is aimed at: - evaluating the clinical, biochemical, virological and Child-Pugh score responses 3,6,9 months after Tenofovir therapy; - assessing possible side effects of tenofovir. Patients and methods: 40 patients with HBV-related cirrhosis were enrolled. All has received Tenofovir disoproxil fumarate 300mg/day. Follow-up after 3,6 and 9 months. Results: Anorexia, oedema and ascites were significantly improved after treatment. HBV DNA became undetectable in 92.5%, 94.55 and 100% after 3,6 and 9 months, respectively. Child- Pugh score was improved after treatment (5.94±0.22 after treatment vs 7.47±0.28 before treatment). Side effects were minors (nausea, vomiting). No case of increase in serum creatinine was found. Conclusion: Tenofovir showed effective and safe in patients of HBV-related cirrhosis. Key words: Cirrhosis, tenofovir, HBV. Key words: cirrhosis, tenofovir, HBV

Background Data Measures for Predicting Security Risks: A Construct Approach

1992 ◽  
Author(s):  
Michael D. Mumford ◽  
Theodore L. Gessner ◽  
Jennifer O'Connor ◽  
Mary S. Connelly ◽  
Timothy C. Clifton
Keyword(s):  
Security Risks ◽  
Background Data

Prevalence of Reading Difficulties in 9- to 10-Year Old Children in Sweden Born With Cleft Palate

2021 ◽  
pp. 105566562110132
Author(s):  
Justin Parry Weinfeld ◽  
Jakob Åsberg Johnels ◽  
Christina Persson
Keyword(s):  
General Population ◽  
Cleft Palate ◽  
Cleft Lip ◽  
Reading Difficulties ◽  
Learning Problems ◽  
Study Group ◽  
Cross Sectional ◽  
Parental Questionnaire ◽  
Background Data ◽  
Cross Sectional Design

Objective: To investigate the prevalence of reading difficulties in children born with cleft palate at ages 9 and 10 in Sweden. Design: Using a cross-sectional design, a parental questionnaire assessing dyslexia-like reading difficulties (Short Dyslexia Scale, SDS) was administered together with separate questions regarding background data. Participants: Families with a child born with overt cleft palate with or without cleft lip in 4 regions of Sweden. A total of 245 families were approached of which 138 families responded. Data from 136 (56%) were complete with information on cleft type and could be analyzed. Results: Twenty-two percent (95% CI, 15-30) of the whole study group displayed risk for dyslexic reading difficulties on the SDS corresponding to the 7th to 10th percentiles in the population. Children with cleft palate only had a significantly higher prevalence of reading difficulties (37%) compared to children with unilateral cleft palate (19%) and bilateral cleft palate (10%). The frequency of reading difficulties in participants with comorbidity was 32%. Among a subgroup with reported comorbidity in areas of attention, language, and learning problems, there was a 2.5 times higher risk of reading disability compared to participants without this reported comorbidity. Conclusion: The prevalence of reading difficulties in the cleft palate population was higher than in the general population. Results showed that co-occurring difficulties were common in the cleft group and that reading difficulties often appear together with other, co-occurring neurodevelopmental difficulties.

scholarly journals Regional Zenith Tropospheric Delay Modeling Based on Least Squares Support Vector Machine Using GNSS and ERA5 Data

2021 ◽  
Vol 13 (5) ◽  
pp. 1004
Author(s):  
Song Li ◽  
Tianhe Xu ◽  
Nan Jiang ◽  
Honglei Yang ◽  
Shuaimin Wang ◽  
...  
Keyword(s):  
Support Vector Machine ◽  
Least Squares ◽  
High Efficiency ◽  
Rapid Development ◽  
Support Vector ◽  
Tropospheric Delay ◽  
Improvement Rate ◽  
Zenith Tropospheric Delay ◽  
Background Data ◽  
Mean Square Errors

The meteorological reanalysis data has been widely applied to derive zenith tropospheric delay (ZTD) with a high spatial and temporal resolution. With the rapid development of artificial intelligence, machine learning also begins as a high-efficiency tool to be employed in modeling and predicting ZTD. In this paper, we develop three new regional ZTD models based on the least squares support vector machine (LSSVM), using both the International GNSS Service (IGS)-ZTD products and European Centre for Medium-Range Weather Forecasts Reanalysis 5 (ERA5) data over Europe throughout 2018. Among them, the ERA5 data is extended to ERA5S-ZTD and ERA5P-ZTD as the background data by the model method and integral method, respectively. Depending on different background data, three schemes are designed to construct ZTD models based on the LSSVM algorithm, including the without background data, with the ERA5S-ZTD, and with the ERA5P-ZTD. To investigate the advantage and feasibility of the proposed ZTD models, we evaluate the accuracy of two background data and three schemes by segmental comparison with the IGS-ZTD of 85 IGS stations in Europe. The results show that the overall average Root Mean Square Errors (RMSE) value of all sites is 30.1 mm for the ERA5S-ZTD, and 10.7 mm for the ERA5P-ZTD. The overall average RMSE is 25.8 mm, 22.9 mm, and 9 mm for the three schemes, respectively. Moreover, the overall improvement rate is 19.1% and 1.6% for the ZTD model with ERA5S-ZTD and ERA5P-ZTD, respectively. In order to explore the reason of the lower improvement for the ZTD model with ERA5P-ZTD, the loop verification is performed by estimating the ZTD values of each available IGS station. In actuality, the monthly improvement rate of estimated ZTD is positive for most stations, and the biggest improvement rate can even reach about 40%. The negative rate mainly comes from specific stations, these stations are located on the edge of the region, near the coast, as well as the lower similarity between the individual verified station and training stations.

scholarly journals Underwater Holographic Sensor for Plankton Studies In Situ Including Accompanying Measurements

Sensors ◽  
2021 ◽  
Vol 21 (14) ◽  
pp. 4863
Author(s):  
Victor Dyomin ◽  
Alexandra Davydova ◽  
Igor Polovtsev ◽  
Alexey Olshukov ◽  
Nikolay Kirillov ◽  
...  
Keyword(s):  
World Ocean ◽  
Field Tests ◽  
Field Measurements ◽  
Measuring Systems ◽  
Water Turbidity ◽  
Background Data ◽  
Average Size ◽  
Size Dispersion

The paper presents an underwater holographic sensor to study marine particles—a miniDHC digital holographic camera, which may be used as part of a hydrobiological probe for accompanying (background) measurements. The results of field measurements of plankton are given and interpreted, their verification is performed. Errors of measurements and classification of plankton particles are estimated. MiniDHC allows measurement of the following set of background data, which is confirmed by field tests: plankton concentration, average size and size dispersion of individuals, particle size distribution, including on major taxa, as well as water turbidity and suspension statistics. Version of constructing measuring systems based on modern carriers of operational oceanography for the purpose of ecological diagnostics of the world ocean using autochthonous plankton are discussed. The results of field measurements of plankton using miniDHC as part of a hydrobiological probe are presented and interpreted, and their verification is carried out. The results of comparing the data on the concentration of individual taxa obtained using miniDHC with the data obtained by the traditional method using plankton catching with a net showed a difference of no more than 23%. The article also contains recommendations for expanding the potential of miniDHC, its purpose indicators, and improving metrological characteristics.

Fast Ship Tracking Algorithm for Remote Sensing Video Based on Background Data Mining And Adaptive Selection

2021 ◽  
Author(s):  
Xiangtian Xue ◽  
Changping Du ◽  
Yang Chen ◽  
Shijie Wang ◽  
Wenxue Yu ◽  
...  
Keyword(s):  
Remote Sensing ◽  
Data Mining ◽  
Tracking Algorithm ◽  
Adaptive Selection ◽  
Background Data

Standard of Living, Health, and Utilization of Social and Health Services a Survey of the Population of Three Districts in Malmö

1977 ◽  
Vol 5 (2) ◽  
pp. 97-103
Author(s):  
Lars Dahlin
Keyword(s):  
Residential Areas ◽  
Random Choice ◽  
Health Authorities ◽  
The Social ◽  
Background Data ◽  
Impaired Health ◽  
Care Health ◽  
Families With Children ◽  
Age Range ◽  
Made In

A survey of the social and medical conditions of the population in three well-defined districts in Malmö was made in order to obtain background data for the planning of open care. A random choice was made of 70 households from each of the three residential areas for interview purposes. Available data concerning actual individuals were collected from the social and health authorities. Wide variations existed between the three districts. The inhabitants of Kroksbäck, mostly young families with children, were comparatively healthy somatically, whereas many had social problems; mental troubles were common too. In Lorensborg, the inhabitants did not conspicuously deviate from the average, as regards complaints. In Ellstorp, with its elderly population, two in three had impaired health, mostly in the form of somatic complaints; moreover their teeth were in poor condition. One in three of all interviewees had felt ill in some respect during the fortnight preceding the interview, and more than half had some current health problem. Eleven percent of all interviewees had sought medical advice during this fortnight. One in three of the interviewees was using prescribed remedies at the time of the interview. Eleven percent of those in the gainfully employable age range had been sick-listed for some part of the fortnight. The need for a general practitioner service, continuity of care, health centres and integration of social and medical care is discussed.

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