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| 1 | Exploring the role of metacognition in obsessive–compulsive and anxiety symptoms显示文摘 | Metehan Irak Ahmet Tosun | | 0，，： | 1 |
| 2 | Mechanical properties of hemp (Cannabis sativa) biomass显示文摘 | Kronbergs A sˇiraks E Adamovi cˇs A | | 0，，15： | 1 |
| 3 | Intracerebral hemorrhage treated with external ventricular drainage following coronary bypass surgery显示文摘 | Onem G Irak B Baltalarli A | 2007 | J Cardia Sur2007，22，3： | 1 |
| 4 | Change in optic disc topography after trabeculectomy显示文摘 | Zangwill L Garden V Shakiba S Weinreb RN | 1996 | Am J Ophthalmol1996，122，5： | 1 |
| 5 | Effects of sustained insulin-induced hypoglycemia on cardiovascular autonomic regulation in type 1 diabetes显示文摘 | Koivikko M Salmela P A irak Sinen KE | 2005 | Diabetas2005，54，3： | 1 |
| 6 | The relation between liver histopathology and GGT levels in viral hepatitis:more important inhepatitis B显示文摘 | Eminler AT Irak K Ayyildiz T | 2014 | Turk J Gastroenterol2014，25，4： | 1 |
| 7 | Damage control surger2 y:an alternative app roach for the management of critically injured patients显示文摘 | Kouraklis G Sp irakes S Glinavou A | 2002 | Surg Today2002，32，3： | 1 |
| 8 | The relation between liver histopathology and GGT levels in viral hepatitis:More important in hepatitis B显示文摘 | Eminler AT Irak K Ayyildiz T | 2014 | Turk J Gastroenterol2014，25，4： | 1 |
| 9 | Exploring the role of metacognition inob- sessive - compulsive and anxiety symptoms 显示文摘 | Metehan Irak Ahmet Tosun | 2008 | Journal of Anxiety Disorders2008，22，： | 1 |
| 10 | Direct and indirect regeneration of plants from internodal and leaf expiants of Hypericum bupleuroides gris显示文摘 | (C)IRAK C(U)NEYT AYAN ALI KEMAL KEVSERO G∨LU KUDRET | 2007 | Journal of Plant Biology2007，50，1： | 1 |
| 11 | Pseudohypericin and Hyperforin in Hypericum perforatum from Northern Turkey:Variation among Populations,Plant Parts and Phenological Stages显示文摘Hypericum perforatum is a perennial medicinal plant known as 'St. John’s wort' in Western Europe and has been used in the treatment of several diseases for centuries. In the present study,morphologic,phenologic and population variability in pseudohypericin and hyperforin concentrations among H. perforatum populations from Northern Turkey was investigated for the first time. The aerial parts of H. perforatum plants representing a total of 30 individuals were collected at full flowering from 10 sites of Northern Turkey to search the regional variation in the secondary metabolite concentrations. For morphologic and phenologic sampling,plants from one site were gathered in five phenological stages: vegetative,floral budding,full flowering,fresh fruiting and mature fruiting. The plant materials were air-dried at room temperature and subsequently assayed for chemical concentrations by high performance liquid chromatography. Secondary metabolite concentrations ranged from traces to 2.94 mg/g dry weight (DW) for pseudohypericin and traces –6.29 mg/g DW for hyperforin. The differences in the secondary metabolite concentrations among populations of H. perforatum were found to be significant. The populations varied greatly in hyperforin concentrations,whereas they produced a similar amount of pseudohypericin. Concentrations of both secondary metabolites in all tissues increased with advancing of plant development and higher accumulation levels were reached at flowering. Among different tissues,full opened flowers were found to be superior to stems,leaves and the other reproductive parts with regard to pseudohypericin and hyperforin accumulations. The present findings might be useful to optimize the processing methodology of wild-harvested plant material and obtain increased concentrations of these secondary metabolites. | Cüneyt irak Jolita Radusiene Valdimaras Janulis Liudas Ivanauskas | 2008 | Journal of Integrative Plant Biology2008，50，5： | 0 |
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