scholarly journals Mere Addition is equivalent to avoiding the Sadistic Conclusion in all plausible variable-population social orderings

2020 ◽  
Vol 196 ◽  
pp. 109547
Author(s):  
Nathan Franz ◽  
Dean Spears
Keyword(s):  
Variable Population ◽  
Mere Addition

scholarly journals AN ASPECT OF VARIABLE POPULATION POVERTY COMPARISONS: DOES ADDING A RICH PERSON TO A POPULATION REDUCE POVERTY?

2014 ◽  
Vol 30 (2) ◽  
pp. 163-174 ◽  
Author(s):  
Nicole Hassoun
Keyword(s):  
Poverty Reduction ◽  
Variable Population ◽  
Mere Addition ◽  
Poverty Indexes

Poverty indexes are essential for monitoring poverty, setting targets for poverty reduction, and tracking progress on these goals. This paper suggests that further justification is necessary for using the main poverty indexes in the literature in any of these ways. It does so by arguing that poverty should not decline with the mere addition of a rich person to a population and showing that the standard indexes do not satisfy this axiom. It, then, suggests a way of modifying these indexes to avoid this problem.

scholarly journals An Improved Biometrics-Based Remote User Authentication Scheme with User Anonymity

2013 ◽  
Vol 2013 ◽  
pp. 1-9 ◽  
Author(s):  
Muhammad Khurram Khan ◽  
Saru Kumari
Keyword(s):  
User Authentication ◽  
Security Analysis ◽  
User Anonymity ◽  
Authentication Scheme ◽  
Remote User Authentication ◽  
User Authentication Scheme ◽  
Efficiency Comparison ◽  
Remote User ◽  
Mere Addition

The authors review the biometrics-based user authentication scheme proposed by An in 2012. The authors show that there exist loopholes in the scheme which are detrimental for its security. Therefore the authors propose an improved scheme eradicating the flaws of An’s scheme. Then a detailed security analysis of the proposed scheme is presented followed by its efficiency comparison. The proposed scheme not only withstands security problems found in An’s scheme but also provides some extra features with mere addition of only two hash operations. The proposed scheme allows user to freely change his password and also provides user anonymity with untraceability.

A genealogical approach to variable-population-size models in population genetics

1986 ◽  
Vol 23 (02) ◽  
pp. 283-296 ◽  
Author(s):  
Peter Donnelly
Keyword(s):  
Population Genetics ◽  
Branching Process ◽  
Sufficient Conditions ◽  
Process Models ◽  
Moran Model ◽  
Fisher Model ◽  
Variable Population ◽  
Exchangeable Model ◽  
Necessary And Sufficient ◽  
Variable Population Size

A general exchangeable model is introduced to study gene survival in populations whose size changes without density dependence. Necessary and sufficient conditions for the occurrence of fixation (that is the proportion of one of the types tending to 1 with probability 1) are obtained. These are then applied to the Wright–Fisher model, the Moran model, and conditioned branching-process models. For the Wright–Fisher model it is shown that certain fixation is equivalent to certain extinction of one of the types, but that this is not the case for the Moran model.

scholarly journals Variable population exposure and distributed travel speeds in least-cost tsunami evacuation modelling

2014 ◽  
Vol 14 (11) ◽  
pp. 2975-2991 ◽  
Author(s):  
S. A. Fraser ◽  
N. J. Wood ◽  
D. M. Johnston ◽  
G. S. Leonard ◽  
P. D. Greening ◽  
...  
Keyword(s):  
Local Source ◽  
Population Exposure ◽  
Least Cost Path ◽  
Pedestrian Evacuation ◽  
Exposed Population ◽  
Cost Modelling ◽  
Path Distance ◽  
Departure Time ◽  
Variable Population ◽  
The Impact

Abstract. Evacuation of the population from a tsunami hazard zone is vital to reduce life-loss due to inundation. Geospatial least-cost distance modelling provides one approach to assessing tsunami evacuation potential. Previous models have generally used two static exposure scenarios and fixed travel speeds to represent population movement. Some analyses have assumed immediate departure or a common evacuation departure time for all exposed population. Here, a method is proposed to incorporate time-variable exposure, distributed travel speeds, and uncertain evacuation departure time into an existing anisotropic least-cost path distance framework. The method is demonstrated for hypothetical local-source tsunami evacuation in Napier City, Hawke's Bay, New Zealand. There is significant diurnal variation in pedestrian evacuation potential at the suburb level, although the total number of people unable to evacuate is stable across all scenarios. Whilst some fixed travel speeds approximate a distributed speed approach, others may overestimate evacuation potential. The impact of evacuation departure time is a significant contributor to total evacuation time. This method improves least-cost modelling of evacuation dynamics for evacuation planning, casualty modelling, and development of emergency response training scenarios. However, it requires detailed exposure data, which may preclude its use in many situations.

scholarly journals PENGARUH BAURAN PROMOSI, KUALITAS PELAYANAN, DAN CITRA PERUSAHAAN TERHADAP KEPUASAN JAMAAH UMROH AL-SHAHBA MALANG MELALUI KEPERCAYAAN JAMAAH SEBAGAI VARIABEL INTERVENING

2020 ◽  
Vol 14 (2) ◽  
pp. 161-172
Author(s):  
Maulidia Wulan Anggraini ◽  
Tin Agustina Karnawati ◽  
Widi Dewi Ruspitasari
Keyword(s):  
Data Collection ◽  
Service Quality ◽  
Path Analysis ◽  
Significant Influence ◽  
Sampling Technique ◽  
Corporate Image ◽  
Coefficient Of Determination ◽  
Purposive Sampling ◽  
Independent Variables ◽  
Variable Population

The purpose of the research is to determine the effect of the promotion mix, service quality, and company image toward satisfaction of Al-Shahba Malang pilgrims through the pilgrims’ trust as an intervening variable. Population of this research is based on consumer who choosing and using Al-Shahba Malang’s umrah package in 2016-2018 as many 276 people. Sample used in this research covers 163 consumer using purposive sampling technique. In this research, the data collection techniques is by questionnaires, interviews, observations, and documentations. The data gained from questionnaires was analyzed by using instrument test, path analysis, hypoteshis testing and the coefficient of determination with SPSS 21.0 version. The research proves that the three independent variables : promotion mix, service quality, and corporate image, has a positive and significant influence on the pilgrims’ trust. The promotion mix, service quality, and corporate image has a positive and significant influence on the pilgrims’ satisfaction. The pilgrims’ trust has a positive and significant influence on the pilgrims’ satisfaction. And the promotion mix, service quality, corporate image has a positive and significant indirect influence on the pilgrims’ satisfaction through pilgrims’ trust as an intervening variable.

scholarly journals HINTERLAND MEDAN CITY BETWEEN BINJAI CITY: A GRAVITATION APPROACH

2019 ◽  
Vol 17 (1) ◽  
pp. 1
Author(s):  
Muhammad Nasir
Keyword(s):  
Impulse Response Function ◽  
Unit Root Test ◽  
Gravity Models ◽  
Causality Test ◽  
Hierarchical Relationship ◽  
Integration Test ◽  
Variable Population ◽  
Vecm Granger Causality ◽  
Relationship Of ◽  
The City

Regional economy explains that there is an urban hierarchical relationship, cities that have higher hierarchy will serve cities that are below it as well as cities that are in the hierarchy undersupplying cities that are in the hierarchy above them, so there is a gravitational relationship between the two. This study aims to determine the gravitational relationship of Medan city to the hinterland of the city of Binjai. Furthermore, this study also wants to explain its influence on economic growth in both cities. This analysis tools used are descriptive statistics, gravity models, unit root test, co-integration test, optimal lag, VECM, Granger causality test, impulse response function, and variance decomposition. The results showed that the city of Medan has a gravity style greater than the gravitational style of the city of Binjai. The VECM estimation results show that the gravitational variable in the city of Binjai in lag -1 and lag-2 has a positive and significant effect on the economy of Medan city. Then the economic variable of the city of Binjai itself in lag-1, the population of the city of Medan in lag-2 and the gravity of the city of Medan in lag-2 had a positive and significant effect on the economy of Binjai city. While the variable population of Binjai city in lag -1 and residents of the city of Medan in lag -1 negatively affected the economy of Binjai city.

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