Social stability in times of change: effects of group fusion and water depth on sociality in a globally invasive fish

2017 ◽  
Vol 129 ◽  
pp. 71-79 ◽  
Author(s):  
Chelsea E. Flood ◽  
Marian Y.L. Wong
2020 ◽  
Vol 6 (2) ◽  
pp. 181-195

Fairness in income distribution is a factor that both motivates employees and contributes to maintaining social stability. In Vietnam, fair income distribution has been studied from various perspectives. In this article, through the analysis and synthesis of related documents and evidence, and from the perspective of economic philosophy, the author applies John Rawls’s Theory of Justice as Fairness to analyze some issues arising from the implementation of the state’s role in ensuring fair income distribution from 1986 to present. These are unifying the perception of fairness in income distribution; solving the relationship between economic efficiency and social equality; ensuring benefits for the least-privileged people in society; and controlling income. On that basis, the author makes some recommendations to enhance the state’s role in ensuring fair income distribution in Vietnam. Received 11thNovember 2019; Revised 10thApril 2020; Accepted 20th April 2020


2020 ◽  
Vol 14 (3) ◽  
pp. 7082-7093
Author(s):  
Jahirwan Ut Jasron ◽  
Sudjito Soeparmani ◽  
Lilis Yuliati ◽  
Djarot B. Darmadi

The hydrodynamic performance of oscillating water column (OWC) depends on the depth of the water, the size of the water column and its arrangement, which affects the oscillation of the water surface in the column. An experimental method was conducted by testing 4 water depths with wave periods of 1-3 s. All data recorded by the sensor is then processed and presented in graphical form. The research focused on analyzing the difference in wave power absorption capabilities of the three geometric types of OWC based on arrangements of water columns. The OWC devices designed as single water column, the double water column in a series arrangement which was perpendicular to the direction of wave propagation, and double water column in which the arrangement of columns was parallel to the direction of wave propagation. This paper discussed several factors affecting the amount of power absorbed by the device. The factors are the ratio of water depth in its relation to wavelength (kh) and the inlet openings ratio (c/h) of the devices. The test results show that if the water depth increases in the range of kh 0.7 to 0.9, then the performance of the double chamber oscillating water column (DCOWC) device is better than the single chamber oscillating water column (SCOWC) device with maximum efficiency for the parallel arrangement 22,4%, series arrangement 20.8% and single column 20.7%. However, when referring to c/h, the maximum energy absorption efficiency for a single column is 27.7%, double column series arrangement is 23.2%, and double column parallel arrangement is 29.5%. Based on the results of the analysis, DCOWC devices in parallel arrangement showed the ability to absorb better wave power in a broader range of wave frequencies. The best wave of power absorption in the three testing models occurred in the wave period T = 1.3 seconds.


2019 ◽  
Vol 66 ◽  
pp. 327-334
Author(s):  
Inga V. Zheltikova ◽  
Elena I. Khokhlova

The article considers the dependence of the images of future on the socio-cultural context of their formation. Comparison of the images of the future found in A.I. Solzhenitsyn’s works of various years reveals his generally pessimistic attitude to the future in the situation of social stability and moderate optimism in times of society destabilization. At the same time, the author's images of the future both in the seventies and the nineties of the last century demonstrate the mismatch of social expectations and reality that was generally typical for the images of the future. According to the authors of the present article, Solzhenitsyn’s ideas that the revival of spirituality could serve as the basis for the development of economy, that the influence of the Church on the process of socio-economic development would grow, and that the political situation strongly depends on the personal qualities of the leader, are unjustified. Nevertheless, such ideas are still present in many images of the future of Russia, including contemporary ones.


10.29007/zx1w ◽  
2018 ◽  
Author(s):  
Dung Tien Tran ◽  
Anh Tuan Le ◽  
Hong Nhung Le ◽  
Viet Hung Ho

A study of average flow in open channel with baffle blocks distributed uniformly has been considered by using channel with varied slopes. In this article, experimental and modelling studies were introduced when the correlation between the water depth and baffle block size is significant. The objective of the work is to give the rudimentary relations between discharge and water level in the channels. When the water depth is large, the effect of bottom channel friction on the flow is relatively small. This paper also gives applications of the software ‘Telemac-2D’ to simulate the flow under different conditions.


2018 ◽  
Vol 4 (1) ◽  
Author(s):  
Wahyu Widiyono

Embung as a man made water reservoir is one of methods to overcome the water shortage in the border area, Belu District, East Nusa Tenggara Province. A number of 27 embungs were built by Regional Government in this area. Embung water and environment management is the main problem to sustain water resource. The research to inventory and identify of vegetation, to predict erosion, to monitor water balance, and to optimize water utilization were conducted, in 2005-2008. The research was undertaken in Embung Leosama. Methods were survey, observation, monitoring and analysis. Results were: (1). There were 7 species and 90 individual number of tree; (2). Prediction of erosion was 97.383 ton/ha/year; (3). Water depth as indicator of embung water balance was decrease due to a little rainfall volume in rainy season 2006/2007; but it was increase in 2007/2008; (4). Embung water can be optimized for drinking cattle, horticulture, nursery and regreening irrigation.Key Words: embung, erosion, water balance.


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