302 research outputs found
The Hormone content of high voltage at some plants and its effect on the physiology
No full textBu tezin, veri tabanı üzerinden yayınlanma izni bulunmamaktadır. Yayınlanma izni olmayan tezlerin basılı kopyalarına Üniversite kütüphaneniz aracılığıyla (TÜBESS üzerinden) erişebilirsiniz.ÖZET YÜKSEK GERİLİMİN BAZI BİTKİLERDE HORMON İÇERİĞİ VE FİZYOLOJİSİ ÜZERİNE ETKİLERİ HATİPOĞLU (YAĞCI), Mİne Yüksek Lisans Tezi, Biyoloji Bölümü Tez Yöneticisi: Yrd. Doç. Dr. Meliha GEMİCİ Ocak 2000, 56 Sayfa Bu tezde enerji nakil hatlarından doğan yüksek gerilimin Ege Bölgesi'ndeki bazı bitkilerin endogen hormon içeriği ve fizyolojisi üzerine etkileri incelenmiştir. Bu çalışmada doğal ortamlarında bulunan Juglans regia (ceviz), Cerasus avium L. Moench (kiraz), Olea europaea L. (zeytin), Elaeagnus angustifolia (iğde), Pinus pinea (çam) kullanılmıştır. Yüksek gerilime maruz kalan bu bitkilerin endogen hormonlarından ABA stres hormonunun kontrol gurubu bitkilere göre artmış, IAA'nm ise azalmış olduğu görülmüştür. Ayrıca bu bitkilerin klorofil miktarlarında da kontrollere oranla azalma tespit edilmiştir. Sonuç olarak, yüksek gerilim bitki gelişimini olumsuz yönde etkilemekte, ancak bitki morfolojisinde çok fazla değişikliğe sebep olmamaktadır. Anahtar kelimeler: Yüksek gerilim, ABA, IAA, GA3VII ABSTRACT THE HORMONE CONTENT OF HIGH VOLTAGE AT SOME PLANTS AND ITS EFFECT ON THE PHYSIOLOGY HATİPO?LU (YA?CI), Mine MSC in Biology Department Supervisor: Assoc. Prof. Dr. Meliha GEMİCÎ January 2000, 56 Pages In this thesis the endogen hormone content of some plants in the Aegean Area exposed to high voltage caused by electrical power transmission line and its effects on the plants physiology is studied. At this study Juglans regia (walnut), Cerasus avium L. Moench (cherry), Olea europaea L. (olive), Elaeagnus angustifolia (oleaster), pinus pinea (pine)in their natural surrounding is used. At the plants exposed to high voltage it is observed that the ABA stress hormone of the endogen hormones has increased, but the IAA has decreased in comparison to the control group plants. Further, compared with the control group plants at the Chlorophyll-quantity of these plants a decrease is perceived. As result high voltage effects the plant's development in a negative form but does not cause a big change on the plant's morphology. Keywords: High voltage, ABA, IAA, Ga
Medicinal Plants Used in Meric Town from Turkey
No full text3rd Mediterranean Symposium on Medicinal and Aromatic Plants (MESMAP) -- APR 13-16, 2017 -- Girne, CYPRUSBackground: There are a few studies on medical plants used in the Trakya region of Turkey ( Havsa, Lalapasa, Uzunkopru, Ipsala, Enez, Kirklareli). However, there has been no research study performed investigating the preparation and medicinal uses of wild plants in Meric town. Aim: The aim of this study is to determine the parts of locally growing medicinal plants used by local people in Meric town and the purpose of their use. Methods: In this study, 16 villages in Meric town (Edirne province, Turkey) were visited, and interviews were performed with 38 persons in total. Results: As result of the study, 24 plant taxa in 19 families were recorded as medicinal plants used by local people. Conclusion: These traditional medicinal plants have been mostly used for the treatment of diabetes, stomach ailments, hemorrhoids, rheumatism and asthma.Trakya University [TUBAP 2013/22]The author would like to thank to all the villagers of Meric town who collaborated in the realization of this study. This study was supported by The Scientific Research Fund of Trakya University (Project no. TUBAP 2013/22)
WATER AND SEDIMENT QUALITY ASSESSMENT OF THE LIFEBLOOD OF THRACE REGION (TURKEY): MERIC RIVER BASIN
No full textMeric River, which is the longest river in Balkans, is one of the most important aquatic ecosystems in Thrace Region of Turkey. But as many aquatic ecosystems, Meric River Basin is known to be exposed to an intensive organic and inorganic pollution by means of agricultural and industrial pressure on the system. The aim of this study was to determine the water and sediment quality of Meric River Basin by using some statistical techniques. For this purpose, water and sediment samples were collected in spring (rainy) season of 2017 from 24 stations selected on the basin. Total of 19 water quality parameters (temperature, dissolved oxygen, % oxygen saturation, pH, EC, TDS, salinity, turbidity, nitrate, nitrite, ammonium, phosphate, sulphate, floride, chloride, ORP, COD, BOD and fecal coliform) were investigated in water samples and also total of 9 inorganic pollution parameters (Cd, Pb, As, B, Cu, Zn, Cr, Ni and Se) were investigated in water and sediment samples. Cluster Analysis (CA) and Factor Analysis (FA) were applied to the results in order to evaluate the detected data effectively. According to detected data, pollution levels of the investigated rivers and lakes as follows; Ergene River > Meric River > Tunca River > Lakes of Meric Delta in general. It was also determined that organic contamination levels in water and toxic element levels in sediment of the Meric River Basin have reached to critical levels and the system is under effect of agricultural and industrial pressure.Trakya University, Turkey; Trakya University, Commission of Scientific Research Projects [2016/247]The author would like to thank for the financial and technical supports supplied by Trakya University, Turkey. This investigation has been supported by the project numbered as 2016/247 accepted by Trakya University, Commission of Scientific Research Projects
Pathway modeling: from gene expression to pathway dynamics
No full textBiological pathways represent a critical level of biological organization and understanding of biochemical pathways is identified as key to future advances in biological sciences (Schaefer, 2004). The overall goal of this thesis is to develop a pathway based approach that integrates different aspects of biological pathways, specifically the structure and the dynamics of a pathway in order to characterize cells’ behavior. Our objectives are to asses structural and functional cross-species comparison of pathways (Chapter 2), to formulate a reliable pathway activity metric based on gene expression data (Chapter 3), to demonstrate that our pathway activity formulation can predict the underlying dynamics (Chapter 4) and finally to demonstrate that the pathway activity formulation can identify cell’s response to a stimulant (Chapter 5). Chapter 3-5 present how a significant pathway can be identified. Then, cross-species comparison of pathways (Chapter 2) can be used. Note that we could have Chapter 2 and Shapter 5 swapped for a more fluent flow. Neverthless, we present the chapters in this order for a better read. In Chapter 2, we propose an improvement of the reaction alignment method, emerged as the most successful pathway comparison method, by accounting for sequence similarity in addition to reaction alignment method. Using nine species, including human and some model organisms and test species, we evaluate the standard and improved comparison methods by analyzing glycolysis and citrate cycle pathways conservation. In addition, we demonstrate how organism comparison can be conducted by accounting for the cumulative information retrieved from nine pathways in central metabolism as well as a more complete study involving 36 pathways common in all nine species. In Chapter 3, we explore an extension of the pathway activity methodology which entails singular value decomposition (SVD) of the expression data of the genes constituting a given pathway. We show that pathway analysis enhances our ability to detect relevant changes in pathway activity using synthetic data. In addition, we illustrate that pathway activity formulation should be coupled with a significance analysis to distinguish significant information from random deviations.In Chapter 4, we perform an unsupervised pathway level analysis, based on the formulation presented in Chapter 3, on a rich time series of transcriptional profiling in rat liver. The over-represented five specific patterns of pathway activity levels, which cannot be explained by random events, exhibit circadian rhythms. The identification of the circadian signatures at the pathway level identify pathways related to energy metabolism, amino acid metabolism, lipid metabolism and DNA replication and protein synthesis, which are biologically relevant in rat liver. In Chapter 5, we demonstrate that our pathway activity formulation enables us to detect relevant changes in pathways due to in utero di-butyl-phthalate (DBP) exposure. Our findings suggest that the pathways that produce precursors to cholesterol synthesis exhibit more significant change compared to the rest of the affected pathways. In addition, pathway activity levels of certain biological functions accompany testosterone decrease, which is the critical event for male reproductive developmental effects of DBP, such as steroid hormone metabolism and biosynthesis of steroids.Ph.D.Includes bibliographical referencesIncludes vitaby Ayse Meric Ovaci
Exploring Pre-service Language Teachers⿿ Perceptions and Actual Practices of Giving Feedback in Micro-teaching
No full textAbstractFeedback has considerably been acknowledged as a significant component of language teaching. Although there are several studies on the effectiveness of giving feedback to pre-service language teachers to improve their teaching practices by their instructors or their peers, the actual feedback provided by them during their micro-teaching practices has not received adequate attention. Therefore, the aim is twofold: to investigate the perceptions of pre-service language teachers regarding their oral feedback providing practices during their micro-teaching implementations, and to carry out content analysis of their micro-teaching practices to determine the frequency and variety of the feedback provided by them during their micro-teaching practices. The study was carried out with 40 pre-service language teachers at Sakarya University. An open ended questionnaire with eight questions was employed in order to determine pre-service language teachers⿿ perceptions. For the actual practices, pre-service language teachers were asked to video record their micro-teachings, and two researchers watched them. The findings of the study have not been finalized yet. With the current study, similarities and differences between pre-service language teachers⿿ perceptions and their actual practices will be investigated
Investigating the environmental Kuznets curve hypothesis with recovered paper consumption, human development index, urbanization, and forest footprint
No full textThe aim of this study, which covers the period from 1991 to 2017, is to analyze the relationships between recovered paper consumption, human development index, urbanization rate, and forest footprint in the framework of the Environmental Kuznets Curve (EKC) hypothesis in the 10 countries that consume the most recovered paper. Considering that wood is the raw material of paper, the study investigates whether the increase in the consumption of recovered paper has a positive effect on the forest footprint. Therefore, unlike other studies, the dependent variable of the EKC model is the forest footprint. The study is original in that it is the first to analyze the effects of recovered paper consumption on environmental degradation in the context of the EKC hypothesis. To analyze the relationships between the variables, we use panel cointegration tests based on AMG and CCE estimators, which allow analysis on both a country and group basis. According to the results, the EKC hypothesis is valid only in the Netherlands. While there is a statistically significant and negative relationship between recovered paper consumption and forest footprint in the Netherlands, there is a statistically significant and negative relationship between urbanization and forest footprint in Italy. Economic and ecological benefits and costs must be considered to measure the net benefit of waste management programs. In addition, to analyze how environmental impacts change over time, ecological footprint and gas emissions during waste generation or disposal should be measured similarly to carbon emissions. © 2023, The Author(s) under exclusive licence to Iranian Society of Environmentalists (IRSEN) and Science and Research Branch, Islamic Azad University
DRINKING WATER QUALITY ASSESSMENT IN VILLAGES LOCATED IN MERIC RIVER BASIN (EDIRNE, TURKEY)
No full textThis study was carried out to determine the drinking water quality of Ipsala, Kesan, Uzunkopru and Meric Districts, which are located in the Meric River Basin in Edirne Province of Turkey. Water samples were collected from 51 villages in autumn season of 2017. Some physical and chemical water quality parameters including dissolved oxygen, oxygen saturation, pH, electrical conductivity (EC), total dissolved solids (TDS), salinity, turbidity, nitrite (NO2), nitrate (NO3), phosphate (PO4) and cyanide (CN) were determined and the results were assessed according to national and international quality criteria. Pearson Correlation Index (PCI) and Principle Component Analysis (PCA) were applied to experimental data in order to determine the significant relations among the investigated parameters and effective factors on groundwater quality of the region. Geographic Information System (GIS) was also used in order to make a visual explanation by presenting distribution maps of investigated parameters. According to data observed, although the investigated parameter levels in drinking water of villages did not exceeded the limit values for drinking, the region has Class I - II water quality in terms of cyanide, nitrite and nitrate parameters; Class II - III in terms of electrical conductivity parameter; and Class III - IV in terms of phosphate parameter in general.Trakya University, Turkey; [2016/247]The author would like to thank for the financial and technical supports supplied by Trakya University, Turkey. This investigation has been supported by the project numbered as 2016/247 accepted by Trakya University, Commission of Scientific Research Projects
Transforming a US scholarly concentrations program internationally: lessons learned
No full textBackgroundScholarly Concentrations programs in U.S. medical schools aim to instill passion for critical thinking and promote careers in academic medicine. The rise of these programs has seen variable goals, structure, and outcomes. Transformation of these programs internationally is in its infancy.MethodsWe describe implementation of the Johns Hopkins School of Medicine Scholarly Concentrations program, offering Basic Science, Clinical Science, Medical Ethics/Healing Arts, History of Medicine, and Public Health/Community Service, at Bezmialem Vakif University in Istanbul, Turkey. Over six modules in the preclinical years, students develop a faculty-mentored experience which encourages the acquisition of attitudes and skills for self-directed, lifelong learning and scholarship. This culminates in abstract and project presentation. We report program characteristics (context and logistics) and outcomes (student engagement and experiences).ResultsThe Scholarly Concentrations program at Bezmialem began in 2014, with nearly two completed cohorts of students. In comparison to Johns Hopkins, students at Bezmialem begin at an earlier age (thus do not have as much prior research experience) and are subsequently evaluated for residency in terms of test scores rather than scholarship and publications, but have a similar level of intellectual curiosity and desire to take ownership of their project. Eighty-two percent of Bezmialem students stated the project they pursued was either their own idea or was an idea they formed after meeting with their mentor. Students at Bezmialem were more likely to choose Clinical Science projects (p=0.009). Only 5% of Bezmialem students in end-of-course survey felt dissatisfied with the level of ownership they experienced with their project, a frequency similar to that seen by Johns Hopkins students (2%).ConclusionsScholarly Concentrations programs play an important role in U.S. medical schools, and these programs can be successfully implemented internationally. The Scholarly Concentrations program at Johns Hopkins has been transformed to a program at Bezmialem in Istanbul, the first program outside North America or the European Union. When designing these programs, one must consider the context, logistics, student engagement, and outcomes. While long-term outcomes are needed, this can serve as a model for implementation elsewhere
Sigma-porous sets and the differentiation theory
No full textof the dissertation thesis Title: Sigma-porous sets and the differentiation theory Author: Martin Koc Department: Department of mathematical analysis Supervisor: Prof. RNDr. Luděk Zajíček, DrSc., Department of mathematical analysis Abstract: The thesis consists of five research articles. In the first one, it is shown that there exists a closed upper porous (in a strong sense) subset of a nonempty, topolo- gically complete metric space without isolated points that is not σ-lower porous (in a weak sense). In the second article, a new notion of porosity with respect to a measure, that generalizes the upper porosity of a measure, is introduced. Several natural definitions of this notion are investigated. The main result of this chapter is a decomposition theorem for sets that are σ-porous with respect to a measure. The third article deals with sets of points at which arbitrary real functions are Lipschitz from one side and not Lipschitz from another side. A full characterization of the system generated by sets of this type is proved. In the fourth article, several results on relations among metric derived numbers for functions with values in metric spaces are shown. The last chapter deals with existence of differentiable extensions for functions defined on closed subsets of Rn . Its main result..
Sigma-pórovité množiny a teorie derivací
No full textof the dissertation thesis Title: Sigma-porous sets and the differentiation theory Author: Martin Koc Department: Department of mathematical analysis Supervisor: Prof. RNDr. Luděk Zajíček, DrSc., Department of mathematical analysis Abstract: The thesis consists of five research articles. In the first one, it is shown that there exists a closed upper porous (in a strong sense) subset of a nonempty, topolo- gically complete metric space without isolated points that is not σ-lower porous (in a weak sense). In the second article, a new notion of porosity with respect to a measure, that generalizes the upper porosity of a measure, is introduced. Several natural definitions of this notion are investigated. The main result of this chapter is a decomposition theorem for sets that are σ-porous with respect to a measure. The third article deals with sets of points at which arbitrary real functions are Lipschitz from one side and not Lipschitz from another side. A full characterization of the system generated by sets of this type is proved. In the fourth article, several results on relations among metric derived numbers for functions with values in metric spaces are shown. The last chapter deals with existence of differentiable extensions for functions defined on closed subsets of Rn . Its main result...disertační práce Název práce:: Sigma-pórovité množiny a teorie derivací Autor: Martin Koc Katedra: Katedra matematické analýzy Vedoucí disertační práce: Prof. RNDr. Luděk Zajíček, DrSc., Katedra matematické analýzy Abstrakt: Práce sestává z pěti odborných článků. V prvním z nich je ukázáno, že existuje uzavřená shora pórovitá (v silném smyslu) podmnožina neprázdného topologicky úplného metrického prostoru bez izolovaných bodů, která není σ-zdola pórovitá (ve slabém smyslu). Ve druhém článku je zaveden nový pojem pórovitosti vzhle- dem k míře, který zobecňuje horní pórovitost míry. Je zkoumáno několik přiroze- ných definic tohoto pojmu. Hlavním výsledkem této kapitoly je dekompoziční věta pro množiny σ-pórovité vzhledem k míře. Třetí článek se zabývá množinami bodů, v nichž jsou libovolné reálné funkce lipschitzovské z jedné strany a zároveň nejsou lipschitzovské z druhé strany. Je ukázána úplná charakterizace systému generovaného množinami tohoto typu. Ve čtvrtém článku je dokázáno několik výsledků o vztazích mezi metrickými derivovanými čísly funkcí s hodnotami v metrických prostorech. Poslední kapitola se zabývá existencí diferencovatelných rozšíření pro funkce definované...Katedra matematické analýzyDepartment of Mathematical AnalysisFaculty of Mathematics and PhysicsMatematicko-fyzikální fakult
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