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Monitoring of Recent Aridification in Türkiye Using MODIS Satellite Data from 2000 to 2021
Get PDFSimulations of future climate indicate that the Mediterranean countries will see increasing temperatures, and decreasing precipitation. In Türkiye, which has a semi-arid and dry sub-humid climate, the coupled effect of warming and drought is expected to lead to a general increase in aridity. We applied indices derived from satellite data to provide continuous monitoring for drought hazards and evaluated recent trends in aridification and drought. Annual averaged temperatures showed a statistically significant rise, although annual rainfall showed no nationwide trend despite strong fluctuations over Türkiye. Significant increasing (decreasing) trends of vegetation (aridification) could be found in the northern, western, and southern regions, despite the rising temperatures and fluctuations in rainfall. One cause of these trends is presumed to be an increase in the nation's proportion of forest, orchard trees, and irrigated farmland. Although decreasing trend of aridification over Türkiye, drought has recurred throughout the 22-year study period in the central and eastern regions. These areas in which the annual averaged satellite-based aridity index exceeds a threshold value correspond closely to regions vulnerable to drought. Satellite-based indices may show particular promise for the major agricultural or pasture areas in central and eastern Türkiye, which are at heightened risk of future drought
Inner and Interfacial Environmental Nanoarchitectonics of Supramolecular Assemblies Formed by Amphiphiles: from Emergence to Application
Get PDFThe inner and interfacial environments of self-assemblies provide fascinating nano-space for selective and efficient chemical reactions and processes. In biological systems, various chemical reactions, molecular recognition, and transport occur precisely and selectively by virtue of effective molecular interactions on biological membranes and proteins. Considering these advantages and the concept of nanoarchitectonics, we demonstrated that the photochromism of a lophine dimer was accelerated by using confined nano-spaces formed by surfactant micelles. The photoresponsive micelles were used for the rapid controlled release of a model drug upon ultraviolet light irradiation. Furthermore, selective ion recognition inside the self-assembled molecular films at the interfaces was investigated. The anion-π interaction between the anion and an electron-deficient aromatic ring was evaluated on a solid substrate modified with a naphthalenediimide (NDI) analog. Force curve measurements afforded a quantitative analysis of anion-π interactions on the NDI film. The strength of anion-π interactions is regulated by the electric fields on the electrode. An optical probe was developed to visualize the distribution of Cs ions in the soil, plant bodies, and aqueous media using an optode system. Advances in the development of molecular functional systems are expected based not only on molecular structures but also on the spaces and environments produced by them
Expression of housekeeping genes varies depending on mevalonate pathway inhibition in cancer cells
Get PDFStatins have anticancer effects and may be used as anticancer agents via drug repositioning. In reverse transcription-quantitative polymerase chain reaction (RT-qPCR) assays, the internal reference gene must not be affected by any experimental conditions. As statins exert a wide range of effects on cells by inhibiting the mevalonate pathway, it is possible that statin treatment might alter the expression of housekeeping genes used as internal reference genes, thereby misleading the assessment of obtained gene expression data. Here, we evaluated the expression stability of internal reference genes in atorvastatin-treated cancer cell lines. We treated both statin-sensitive and statin-resistant cancer cell lines with atorvastatin at seven different concentrations and performed RT-qPCR on 15 housekeeping genes whose expression stability was then assessed using five different algorithms. In both statin-sensitive and statin-resistant cancer cell lines, atorvastatin affected the expression of certain internal reference genes in a dose-dependent and cancer cell line-dependent manner; therefore, caution should be exercised when comparing target gene expression between cells. Our findings emphasize the importance of the validation of internal reference genes in gene expression analyses in drug treatment-based cancer research
ドウロバシ テッキン コンクリート ユカイタ ノ ナイブ スイヘイ ヒビワレ ケンシュツホウ ノ カイハツ ニ カンスル ケンキュウ
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History of human disturbance in Satoyama and rare ecosystem developed by their influences : A case study in Tsuguro Highland,Maniwa city, Okayama prefecture, Southwest Honshu, Japan
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Improvement of Water and Fertilizer Managements for Enhancing Water Productivity and Net Income of Farmers in Arid and Semi-arid Regions
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Person Verification Based on Multipoint Measurement of Intrabody Propagation Signals
Get PDFTo use intra-body propagation signals as biometrics is proposed. However, the verification performance is not so high; therefore, to improve it is an urgent issue. In this study, we performed multipoint measurements on the palm and human body and examined the verification performance when fusing individual features or verification results obtained by multipoint measurements. The effect of multipoint authentication was confirmed; however, it was no so great
タンサ ペプチド ト ジュヨウタイ オ キジク トシタ センチュウ Ｃａｅｎｏｒｈａｂｄｉｔｉｓ ｅｌｅｇａｎｓ ノ キュウミン セイギョ キコウ ノ カイメイ
Get PDF鳥取大学Tottori University博士(農学