Investigating the impact of human activity on the performance of wireless networks — An experimental approach

Author(s):  
Elyes Ben Hamida ◽  
Guillaume Chelius
2018 ◽  
Vol 637-638 ◽  
pp. 844-854 ◽  
Author(s):  
Cong Men ◽  
Ruimin Liu ◽  
Qingrui Wang ◽  
Lijia Guo ◽  
Zhenyao Shen

Sensors ◽  
2012 ◽  
Vol 12 (6) ◽  
pp. 8039-8054 ◽  
Author(s):  
Oresti Banos ◽  
Miguel Damas ◽  
Hector Pomares ◽  
Ignacio Rojas

2002 ◽  
Vol 10 (4) ◽  
pp. 403-412 ◽  
Author(s):  
Adam F. Simon ◽  
Tracy Sulkin

In this study, we unite two experimental traditions to examine the impact of discursive processes on political decision making. We directly manipulate the presence and timing of discussion in the “divide-the-dollar” game to assess the effects of discussion on participants' allocations and perceptions of the game's legitimacy. To investigate the influence of structure, we also manipulate the presence of a majority/minority cleavage among participants. The dependent measures in all instances are the players' allocations, the outcome of the game, and psychometric indicators of legitimacy perceptions. Results indicate that the presence of discussion can generate outcomes that are perceived as more equitable and fair in some circumstances—namely, when a cleavage is present. These findings establish the utility of this paradigm, as well as an important baseline for assessing the probable impacts of proposals to integrate deliberation into political decision making.


Water ◽  
2021 ◽  
Vol 13 (21) ◽  
pp. 3147
Author(s):  
Mengxue Zhang ◽  
Radosław Stodolak ◽  
Jianxin Xia

Climate, land use and human activity have an impact on the Qingshui River in Chongli County. The Soil and Water Assessment Tool (SWAT) was used to separately analyze the contributions of climate, land use and direct human activity on the discharge variations. The results indicated that human activity had been the dominant factor for the discharge decrease, while climate and land use change had a positive influence on the discharge increase. The contributions of these three factors were −56.24%, 38.59% and 5.17%, respectively. Moreover, on the seasonal scale, the impact of those factors was consistent with their impact on the annual scale. Human activity was the main factor for discharge decrease in the summer, the contribution accounting for −77.13%. Due to the over-extraction of groundwater for irrigation and use in the mining industry, the discharge showed a decreasing tendency, which has the potential to place stress on sustainable water use in the future. The result of the study may contribute to the optimization of water resource allocation and management.


Antibiotics ◽  
2021 ◽  
Vol 10 (9) ◽  
pp. 1040
Author(s):  
Tânia Magalhães Silva ◽  
Marta Estrela ◽  
Eva Rebelo Gomes ◽  
Maria Piñeiro-Lamas ◽  
Adolfo Figueiras ◽  
...  

Coronavirus disease 2019 (COVID-19) has spread globally and is currently having a damaging impact on nearly all countries in the world. The implementation of stringent measures to stop COVID-19 dissemination had an influence on healthcare services and associated procedures, possibly causing antibiotic consumption fluctuations. This paper aims to evaluate the immediate and long-term impact of the COVID-19 pandemic on antibiotic prescribing trends in outpatient care of the Portuguese public health sector, including in primary healthcare centers and hospitals, as well as on specific antibiotic groups known to be closely associated with increased resistance. Segmented regression analysis with interrupted time series data was used to analyze whether the COVID-19 pandemic had an impact in antibiotic prescribing tendencies at a national level. The outcomes from this quasi-experimental approach demonstrate that, at the beginning of the pandemic, a significant, immediate decrease in the overall antibiotic prescribing trends was noticed in the context of outpatient care in Portugal, followed by a statistically non-significant fall over the long term. The data also showed a significant reduction in the prescription of particular antibiotic classes (antibiotics from the Watch group, 3rd-generation cephalosporins, fluoroquinolones, and clarithromycin) upon COVID-19 emergence. These findings revealed an important disruption in antibiotics prescribing caused by the current public health emergency.


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