Ara
Toplam kayıt 10, listelenen: 1-10
Secondary metabolites of Hypericum scabrum and Hypericum bupleuroides
(Taylor & Francis Ltd, 2009)
The genus Hypericum (Guttiferae) is a source of biologically active secondary metabolites, notably hyperforin, hypericins and various phenolics. In the present study the presence of the phloroglucinol derivative hyperforin, ...
An analysis of language and speech disorders in preschool children in Turkey: the case of Beypazarı
(2018)
The children with early language and speech delay have the risk to face with learning disabilitiesas well as psychological and behavioral adjustment problems in the preschool period. The aim of this studyto analyse the ...
Callus induction in some hypericum species growing in Turkey
(2005)
Species of the genus Hypericum have attracted scientific interest due to their variety of phytomedicinals and in vitro propagation has been reported as very useful tool in their multiplication and in studying their ...
Phenological changes in the chemical content of wild and greenhouse-grown Hypericum pruinatum: flavonoids
(Tubitak Scientific & Technical Research Council Turkey, 2014)
The present study was conducted to determine the phenological changes in the content of main flavonoids, namely amentoflavone, hyperoside, isoquercitrin, quercitrin, quercetin, avicularin, rutin, (+)-catechin, and ...
A study on ontogenetic and diurnal variability of laurel (Laurus nobilis L.) leaves
(2003)
In the study conducted on laurel leaves harvested from Laurel tree present in çakırlar Grove of Samsun province during May-October 2001, at morning, noon and evening, ontogenetic and diurnal variability was determined. ...
Secondary Metabolites of Hypericum leptophyllum Hochst., an Endemic Turkish Species
(Hindawi Ltd, 2012)
In the present study, the presence of the phloroglucinol derivative hyperforin, the naphthodianthrones hypericin and pseudohypericin, the phenylpropane chlorogenic acid and the flavonoids rutin, hyperoside, kaempferol, ...
How did Covid-19 affected career intentions of students studying tourism
(2021)
This study aims to determine whether there is a difference between the career plans of the students majoring tourism programs before and after the corona virus and disease pandemic. A total of 705 people studying tourism ...
A study on the determination of the association between consumers’ price perceptions and their demographic characteristics
(2021)
Price perception, which influences buying behaviour and product selection, is an important tool in companies’ strategies to be developed about the price of the product and in their success. The main purpose of this study ...
GE interaction and stability analysis in some basma type oriental tobacco (Nicotiana tabacum L.) lines
(Ankara Üniversitesi, 2021)
Turkey has long been the leader in oriental tobacco (Nicotiana tabacum L.) production in the world. Standard cultivars are needed to increase the yield and quality of tobacco production. This study aimed to determine the ...
Capturing migratory birds and examining for ticks (Acari: Ixodida)
(2021)
Ticks (Acari: Ixodida) are hematophagous ectoparasites of a wide variety of mammals, birds, reptiles, and amphibians, and are the vectors of many pathogenic agents, such as bacteria, protozoa, and viruses. The seasonal ...