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  1. 1481

    Changes in Cultivated Land and Its Effects on Vegetation and Evapotranspiration Characteristics in the Naoli River Basin by YIN Jian, XIA Ruici, WEI Danqi, DING Yi, JIANG Hongtao, LUO Xinyuan

    Published 2023-01-01
    “…The Naoli River Basin is located in the hinterland of the Sanjiang Plain and is an important grain production area in China.In recent years,with the guarantee of food security and the adjustment of regional agricultural structure in China,there have been significant changes in land use,such as cultivated land expansion and planting structure adjustment.Therefore,identifying changes in cultivated land and their ecological effects is of great significance for regional ecological protection.This study analyzed changes in land use from 1980 to 2020 and then estimated their ecological impact using the ecological impact index of cultivated land change based on normalized difference vegetation index (NDVI) and actual evapotranspiration data.In addition,changes in evapotranspiration were estimated to determine the degree of water consumption.The results show that:① the area of cultivated land in the basin has increased significantly from 7 273.22 km<sup>2</sup> to 15 313.62 km<sup>2</sup> over the past 40 years,an increase of 110.55%,mainly due to the reclamation of forests and wetlands;② in the past 20 years,there has been a significant conversion between paddy fields and dry land,with a greater increase in conversion from dry land to paddy fields;③ From 2000 to 2020,both NDVI and evapotranspiration in the basin showed an increasing trend,with an increased amplitude of 8.15% and 18.58%,respectively.The increase in NDVI in cultivated areas mainly occurs during the crop growing season,while the contribution of non-growing seasons to NDVI change is low;④ different types of changes in cultivated land have varying contributions to the NDVI and annual evapotranspiration in the basin.Returning cultivated land to forest has contributed to ecological protection and reduced water consumption.Although the reclamation of wetlands has increased NDVI during the growing season,it has also increased water consumption in the basin.The conversion from paddy fields to dry land is beneficial for water conservation in the basin,while the conversion from dry land to paddy fields increases evaporation and water consumption,potentially posing a risk to water resource security.…”
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    The effect of climatic changes on vertical moisture exchange in soils (the Volga river basin as an example) by Sergey A. Lavrov

    Published 2021-08-01
    “…On the example of the Volga basin, changes in moisture flows in soils over the past decades are considered.…”
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    Examining the Formalin Fixation Method for Maintaining High RNA Quality in Surgical Lung Specimens by Takashi Teishikata, Manabu Itoh, Yusuke Okamoto, Naofumi Miyahara, Chiho Nakashima, Koichiro Takahashi, Masafumi Hiratsuka, Keita Kai, Keiji Kamohara

    Published 2025-01-01
    “…Methods Sheet‐like fixation specimens (n = 15), conventional fixation specimens of the same resected lungs (n = 15), and other lung cancer specimens collected for conventional fixation and subjected to multiplex gene‐panel testing (n = 22) were retrospectively examined. RNA was extracted from each specimen. RNA quality and quantity were compared, and the success rate of multiplex gene‐panel testing was determined. …”
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    Linear growth rate of vyrezub (Rutilus frisii Nordmann, 1840) in the Dnister River basin by V. Gurbyk, A. Mruk, L. Strembitskyi, A. Kucheruk

    Published 2024-12-01
    “…For the first time, the linear structure of vyrezub of the Dnister River and the rivers of its basin within the Ivano-Frankivsk region has been analyzed. …”
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  19. 1499

    Examination of Students’ Small Groups Discussion in Argumentation Process: Scientific and Socio-Scientific Issues by Esra Kabatas-Memis, Ebru Ezberci Cevik

    Published 2017-07-01
    “…The purpose of this study was to examine processes experienced by students of different achievement levels in small group discussions in argumentation applications conducted in scientific and socio-scientific issues. …”
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