Statistical techniques for modeling of Corylus, Alnus, and Betula pollen concentration in the air

Aerobiologia ◽  
2018 ◽  
Vol 34 (3) ◽  
pp. 301-313 ◽  
Author(s):  
Jakub Nowosad ◽  
Alfred Stach ◽  
Idalia Kasprzyk ◽  
Kazimiera Chłopek ◽  
Katarzyna Dąbrowska-Zapart ◽  
...  
2018 ◽  
Author(s):  
Jakub Nowosad

Understanding of the behavior of atmospheric pollen concentration, as well as developing predictive models, can greatly help allergic sufferers. The aims of this study were (i) to determine mean multi-year characteristics of temporal and space–time autocorrelation of the pollen counts of Corylus, Alnus, and Betula in Poland, (ii) to create and evaluate Corylus, Alnus, and Betula pollen concentration levels predictions based on previous pollen count values from given sites, and (ii) to develop spatiotemporal predictive models of Corylus, Alnus, and Betula pollen concentration levels, using preprocessed gridded meteorological data. The monitoring of the concentrations of Corylus, Alnus, and Betula pollen in the air was conducted in 11 cities in Poland. Additionally, AGRI4CAST Interpolated Meteorological Data were used as predictor variables. The autocorrelation and cross-correlation functions were used to investigate temporal and spatial patterns. Random forest method was used to predict the high pollen concentration level of Corylus, Alnus, and Betula. The study provided an understanding of the temporal and spatiotemporal autocorrelation of Corylus, Alnus, and Betula pollen counts. The final models also proved to be capable of pollen levels predicting in continuous areas rather than in a single location.


2019 ◽  
Vol 660 ◽  
pp. 1070-1078 ◽  
Author(s):  
Agnieszka Kubik-Komar ◽  
Krystyna Piotrowska-Weryszko ◽  
Elżbieta Weryszko-Chmielewska ◽  
Izabela Kuna-Broniowska ◽  
Kazimiera Chłopek ◽  
...  

Aerobiologia ◽  
2015 ◽  
Vol 32 (3) ◽  
pp. 453-468 ◽  
Author(s):  
Jakub Nowosad ◽  
Alfred Stach ◽  
Idalia Kasprzyk ◽  
Elżbieta Weryszko-Chmielewska ◽  
Krystyna Piotrowska-Weryszko ◽  
...  

2019 ◽  
Vol 118 (12) ◽  
pp. 16-23
Author(s):  
M. Chitra ◽  
Dr. C. Madhesh

Siddha is considered to be one of the oldest medicines with its own benefits. In this modern era, people are more aware towards their health. At many circumstances of illness, people use Siddha medicines to cure their disease. Siddha is preferred for its own specialties. This paper has attempted to reveal the awareness towards Siddha medicines taking 52 respondents from Dharmapuri City. The results were analysed by using various statistical techniques like percentage analysis, chi-square and t test. Siddha focuses on the eight supernatural powers called as ‘Ashtaamahasiddhi’ and those who achieved these powers were known as siddhars. Hence it is called as siddha medicine. The siddhars knowledge was found in palm leaf manuscripts and their fragments were found in some parts of south India.


2004 ◽  
Author(s):  
Hans T. Schreuder ◽  
Richard Ernst ◽  
Hugo Ramirez-Maldonado

HortScience ◽  
1994 ◽  
Vol 29 (5) ◽  
pp. 576d-576
Author(s):  
Ellen T. Paparozzi

Fertilizer particularly nitrogen is part of the concern about groundwater contamination. Many floricultural and ornamental plants do not need the high rates of nitrogen that are typically recommended. However, whenever one alters the quantity of a given nutrient the overall nutrient balance, as well as other physiological processes, changes. A brief overview of our research on poinsettias, roses, and chrysanthemums will be presented. Suggested ratios, critical S levels and nutrient problems associated with incorrect balances will be shared. Limitations due to statistical methods and the impact nutrient balance has on certain plant processes such as flowering and coloring and thus, consumer acceptance will be summarized. Future plans in this area may focus on the need for new statistical techniques, nutrient acquisition by roots and consumer perceptions of plant quality.


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