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Evangelos Vasileiou
Pág. 45 - 63
This paper examines how the largest stock market of the world, the U.S., and particularly the S&P500 index, reacted during the COVID-19 outbreak (02.01.2020-30.04.2020). Using simple financial and corporate analysis (adopting Constant Growth Model) proce...
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Evangelos Vasileiou
This paper examines how the largest stock market of the world, the U.S., and particularly the S&P500 index, reacted during the COVID-19 outbreak (02.01.2020-30.04.2020). Using simple financial and corporate analysis (adopting Constant Growth Model) proce...
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Zehua Li, Xiaola Wu, Xicheng Wang, Haimin Zhong, Jiongtao Chen and Xu Ma
To explore the internal driving force of the growth of rice yield per unit area in China, a model based on varying-coefficient production function is proposed in this study, which comes from the idea that the constant elasticity parameters in the Cobb-Do...
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Inayati Nuraini Dwiputri, Albertus Girik Allo
Pág. 329 - 342
The prediction of future macroeconomic conditions is needed by the government to carry out the planning and budgeting. This study predicts macro indicators in Hulu Sungai Utara Regency in the period 2017-2022. The method used is univariateforecasting, wh...
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Constantine Angyridis, Panagiotis Tsintzos
Pág. 121 - 150
This paper considers an endogenous growth model with public capital and government debt. In setting the level of public investment each period, the government is assumed to follow two commonly used in the growth literature fiscal rules: public investment...
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Ricardo Silva Azevedo Araujo, Joanílio Rodolpho Teixeira
Pág. 127 - 152
With this inquiry we seek to develop a disaggregated version of the post-Keynesian approach to economic growth, by showing that indeed it can be treated as a particular case of the Pasinettian model of structural change and economic expansion. By r...
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Petya Popova-Krumova, Venko Beschkov, Evgenia Vasileva and Tsvetomila Parvanova-Mancheva
This study proposes a mathematical modeling approach for evaluating the effect of applying a permanent electric field on the biodegradation of 1,2-dibromoethane by bacterial cells of Bradyrhizobium japonicum 273. Two models for inhibited microbial growth...
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Henrique J. O. Pinho and Dina M. R. Mateus
Considering the increasing pressure on freshwater resources due to the constant increase in water consumption and insufficient wastewater control and treatment, recovering wastewater is a path to overcoming water scarcity. The present work describes the ...
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Ahmed Bellakhdhar
Pág. 22 - 33
The subject matter of research is the examination of the optimal public policy in an R&D-based endogenous growth model with monopolistic supply of intermediate goods. The goal of the work is to study whether an adequate government intervention can provid...
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Poul S. Larsen and Hans Ulrik Riisgård
Filter-feeding sponges pump large amounts of water and contribute significantly to grazing impact, matter transport and nutrient cycling in many marine benthic communities. For ecological studies it is therefore of interest to be able to estimate the pum...
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Alex Garivaltis
This note provides a neat and enjoyable expansion and application of the magnificent Ordentlich-Cover theory of ?universal portfolios?. I generalize Cover?s benchmark of the best constant-rebalanced portfolio (or 1-linear trading strategy) in hindsight b...
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Shunsheng Wang, Diru Wang, Tengfei Liu, Yulong Liu, Minpeng Luo, Yuan Li, Wang Zhou, Mingwei Yang, Shuaitao Liang and Kaixuan Li
Winter wheat is the main grain crop in the Yellow River Basin, and optimizing water and nitrogen management can not only improve the yield, but also reduce water and fertilizer waste and environmental pollution. Using two years of winter wheat field tria...
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Toshiharu Kojima, Ryoma Shimono, Takahiro Ota, Hiroshi Hashimoto and Yasuhiro Hasegawa
The ecosystem services of forests, such as the water conservation function, are the combined results of diverse processes, and the modification of one part of a forest affects each ecosystem service separately via complex processes. It is necessary to de...
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Jingxia Yue, Jiankang Lei, Yordan Garbatov and Ke Yang
Many studies have shown that the linear elastic fracture mechanics (LEFM) method based on the stress intensity factor range (?K) has limitations that cannot be ignored. Due to neglecting the influence of plastic deformation near the crack tip, LEFM shows...
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Daisuke Murakami, Mami Kajita and Seiji Kajita
A rapid growth in spatial open datasets has led to a huge demand for regression approaches accommodating spatial and non-spatial effects in big data. Regression model selection is particularly important to stably estimate flexible regression models. Howe...
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Sauro Manenti, Andrea Amicarelli and Sara Todeschini
This work illustrated an application of the FOSS code SPHERA v.8.0 (RSE SpA, Milano, Italy) to the simulation of landslide hazard at the slope of a water basin. SPHERA is based on the weakly compressible SPH method (WCSPH) and holds a mixture model, cons...
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Fabian Schwaiger, Werner Poschenrieder, Peter Biber and Hans Pretzsch
The control and maintenance of species composition of mixed stands is a highly relevant objective of forest management in order to provide multifunctionality and climatic resilience. In contrast to this requirement there is, however, an evident lack of q...
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Alun Gu, Yue Zhang and Bolin Pan
Global inequity and the unbalance of water resources has been a critical issue for many years; and the Chinese per capita water resources are only 1/4 of the global average. Meanwhile, as the Chinese economy is growing rapidly, the demand of Chinese indu...
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Alun Gu, Yue Zhang, Bolin Pan
Pág. 1 - 13
Global inequity and the unbalance of water resources has been a critical issue for many years; and the Chinese per capita water resources are only 1/4 of the global average. Meanwhile, as the Chinese economy is growing rapidly, the demand of Chinese indu...
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Jisun Byun, Minwoo Son, Jeong-Seok Yang and Tae-Hwa Jung
Cohesive sediment has different characteristics compared to non-cohesive sediment. The density and size of a cohesive sediment aggregate (a so-called, floc) continuously changes through the flocculation process. The variation of floc size and density can...
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