发刊词 by 王子纲

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Land Use Changes and Their Effects on the Value of Ecosystem Services in the Small Sanjiang Plain in China by Jing Chen, Bo-Ming Sun, Dan Chen, Xin Wu, Long-Zhu Guo, Gang Wang

“…We found that cropland sprawl was predominant and occurred in forest, wetland, and grassland areas in the small Sanjiang plain from 1980 to 2010. Using a model to evaluate ecosystem services value, we calculated that the decreased values of ecosystem services were 169.88 × 108 Yuan from 1980 to 2000 and 120.00 × 108 Yuan from 2000 to 2010. …”
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Characteristics and association mechanisms of the transition between dominant morphology and recessive morphology of rural settlements by ZHANG Bailin, ZHANG Xinyu, ZHAO Yining, LIU Hongwu

“…[Methods] This paper draws on the “conflict-coordination” theoretical model of regional land use, and introduces the coupling coordination model, Pearson correlation coefficient and grey correlation degree model to analyze the internal correlation mechanism of the transition of rural settlements in Tianjin from 1980 to 2020. [Results] (1) From 1980 to 2020, the dominant morphology and recessive morphologies index of rural settlements in Tianjin showed an upward trend. …”
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Precipitation Concentration in Bangladesh over Different Temporal Periods by Md. Anarul Haque Mondol, Al-Mamun, Mehedi Iqbal, Dong-Ho Jang

“…We observed variations in PCI among different regions using the Kruskal–Wallis test of the mean PCI on a decadal scale (1980–1989, 1990–1999, and 2000–2011). The result showed that significant changes in the precipitation occurred during the period of 1980–2011. …”
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Cardiac Magnetic Resonance Imaging for Diagnosis of Cardiac Sarcoidosis: A Meta-Analysis by Jianxiong Zhang, Yunxiao Li, Qiufen Xu, Bo Xu, Haoyan Wang

“…We searched on PubMed from January 1, 1980, to March 28, 2018, on Embase from January 1, 1980, to March 29, 2018, and on the Cochrane Library from January 1, 1980, to April 1, 2018, using a strategy based on the search terms (sarcoidosis and magnetic resonance imaging) independently. …”
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同轴电缆载波系统的一种最优设计程序ODCCS by 唐人亨

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三十年来的信息论 by 蔡长年

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Educação Física na Educação Infantil: Reflexões a partir da perspectiva da Docência Compartilhada by Juliano Silveira

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Problems solving in the integral calculus and the determination of the area under the curve by Juan E. N´apoles Vald´es, Maria Nubia Quevedo

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Dexia, ou la faillite d’une régulation du crédit local par le marché by Edoardo Ferlazzo

“…Having created market-based regulation of local government borrowing in the 1980s, it was left to the state to “foot the bill” for the excesses of market regulation.…”
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Del problema oculto al generizado: un estado del arte de los estudios sobre el abuso y la violencia hacia las personas mayores en el Norte global (1970-2020) by Herminia Gonzálvez, Carla Bravo

“…Comenzaremos revisando la preocupación inicial sobre el llamado problema oculto del abuso hacia las personas mayores (1970-1980), para después analizar su conformación como un problema público (1980-2000). …”
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Neo-Liberal Toplumlarda Düzenleyici Devlet Anlayışı ve Görsel-İşitsel İletişim Alanında Bağımsız Düzenleyici Üst Kurullar: RTÜK Örneği by Hülya Öztekin

“…Buradan hareketle çalışmada 1980'lerden sonra neo-liberal süreçte ortaya çıkan bağımsız düzenleyici üst kurullar ve kurulların radyo ve televizyon yayıncılığındaki yeri incelenmiştir. …”
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