Browsing by Author "Ozturk S."

Now showing 1 - 2 of 2

Determination of the perceptions of secondary education students towards environment and nature
(2015-01-01) Ozturk S.; Enez K.
This study aimed to determine the perceptions of students aged between 13 and 18 years regarding the environment and nature, and was conducted within the scope of a project entitled 'Environment and Nature Education through a Social Support Approach'. The project was conducted in Kastamonu, Kastamonu Province, Turkey, with 40 students who reside in Kastamonu Social Service and Child Protection Agency. The participants in this study were investigated using face-to-face interviews to determine their changes of perceptions towards the environment and nature. According to the results of survey, the information provided during the education program was successful in raising awareness in the participants of the ongoing global issues of the environment and nature. Nature courses provided in formal education at school are inadequate and do not make progress in anyway or help students choose professions in the future that are related to the environment and nature.
Investigation of environmental contamination in lichens of Gökçeada (Imbroz) Island in Turkey
(2009-02-01) Kahraman A.; Kaynak G.; Gurler O.; Yalcin S.; Ozturk S.; Gundogdu O.
The main objective of the present study is to determine the type of environmental contamination in lichens in Gökçeada Island in the Northern Aegean Sea in Turkey. We used two different lichen species Cladonia foliacea and Ramalina pollinaria. In the first part of the investigation, the beta activities of lichens have been measured by using a TENNELEC LB 1000-PW detector. The range of beta activity values was between 607 ± 30 and 308 ± 12 Bq/kg for C. foliacea lichens collected from around Tuz Lake and values for R. pollinaria lichens were found to be 740 ± 25 and 541 ± 17 Bq/kg. The second part of the study was concerned with the gamma spectra of the lichen samples measured by using HpGe detector. 137Cs, 134Cs, 40K, 232Th, 226Ra radionuclides were found in C. foliacea collected from around Tepeköy and in R. pollinaria from around Tuz Lake. When these two types of lichens were compared, it was found that R. pollinaria contain more radionuclides. In order to compare and determine which of these lichens act as a better bioaccumulator, K, Mn, Zn, Rb, Sr, Ba and Pb metal content were determined by using Energy Dispersive X-ray fluorescence spectrometry. It was found that C. foliacea collected more Mn and Sr when compared to R. pollinaria. © 2009 Elsevier Ltd. All rights reserved.