3,336 research outputs found
Approximate solution to a hybrid model with stochastic volatility: a singular-perturbation strategy
We study a hybrid model of Schobel-Zhu-Hull-White-type from a singular-perturbation-analysis perspective. The merit of the paper is twofold: On one hand, we find boundary conditions for the deterministic non-linear degenerate parabolic partial differential equation for the evolution of the stock price. On the other hand, we combine two-scales regular- and singular-perturbation techniques to find an approximate solution to the pricing PDE. The aim is to produce an expression that can be evaluated numerically very fast
Young Women\u27s Civic Awareness and Public Engagement: A Challenge in a Bahraini Context
In recent years, growing attention to cultivate civic participation among young citizens has been mounting. In Bahrain, young women receive some attention via their participation in civic, political and public engagement initiatives. This paper presents the theoretical and conceptual background for a field study that intends to examine whether young Bahraini women are equipped with the civic knowledge and understanding necessary to participate effectively in community. It also presents their conception of citizenship, their perception of their identity, their political awareness, and their concern about their community issues.
Drawing on quantitative and qualitative data, this paper analyses the ways in which young Bahrainis perceive their identity and citizenship status. In this mixed methods approach, a questionnaire was administered to 245 Bahraini young women at the age of 18, followed by in-depth interviews with a stratified sample of 11 young women who had participated in the questionnaire survey. Although the gender gap is closing or reversing in regard to specific forms of participation, some inequalities remain (Lorenzini and Bassoli, 2016), this study contributes to understanding the gender differences in issues related to civic participation and to find if there are any significant differences among women themselves
Fuzzy Fractional-Order PID Congestion Control Based on African Buffalo Optimization in Computer Networks
Congestion is the primary factor that slows down data transfer in communication networks. Transmission Control Protocol and Active Queue Management (TCP/AQM) collaborated to resolve this issue. The fuzzy-Fractional-Order-PID (FFOPID) controller is developed in this paper to control the linearized TCP/AQM model. The strategy is founded on a combination of fractional-order PID and fuzzy logic controllers. The primary objective of the proposed controller is to maintain the queue length of the router within the appropriate queue threshold for a congestion model. The control parameters are tuned using African Buffalo optimisation (ABO). The suggested controller is compared to other controllers (PID, Fuzzy-PID, and Fractional-order PID) to demonstrate the controller's efficiency, and all of these controllers are optimised using African Buffalo Optimisation (ABO). In MATLAB (R2017b), the simulation of the linearized model is introduced. Comparing the results of the Fuzzy-Fractional-Order-PID controller with those of other controllers in the same network scenarios reveals that the Fuzzy-FOPID is robust for a wide variety of TCP flows
Assessment of Students Performances in Biology: Implication for Measurements and Evaluation of Learning
Scienceeducation is believed to be a vital tool for individual and societal development at large. The persistent low levels of students' achievement in sciences at the various public examinations in Nigeria have continued to draw the attention of major stakeholders in education. This study examined academic achievement of Senior Secondary School students in biology and gender difference in students' achievement was examined. Ex-post facto design of descriptive research was adopted for the study. A proforma was used to collect data from a sample of two hundred (200) students, selected using stratified random sampling procedure from the Science secondary schools in Kano state Nigeria. The data collected were the students' performances in biology achievement tests. The data were analysed using descriptive statistics and independent-sample t-test. Overall results showed that the test internal consistency reliability is low and unsatisfactory; the students performed below average (M=47.02, SD=16.493 (47%). Similarly, gender difference exists in biology performance with another significant difference between performance of urban and rural school students. The study concludes that, biology test used in Kano state qualifying examinations to assess students potential ability in biology is not a reliable measurement tool and that, academic performance of students in biology is unsatisfactory and evidence of differential performance between gender and schools locations. The implication for measurements and evaluation of learning as well as recommendations has been discussed
Tied factor analysis for face recognition across large pose differences
Face recognition algorithms perform very unreliably when the pose of the probe face is different from the gallery face: typical feature vectors vary more with pose than with identity. We propose a generative model that creates a one-to-many mapping from an idealized โidentityโ space to the observed data space. In identity space, the representation for each individual does not vary with pose. We model the measured feature vector as being generated by a pose-contingent linear transformation of the identity variable in the presence of Gaussian noise. We term this model โtiedโ factor analysis. The choice of linear transformation (factors) depends on the pose, but the loadings are constant (tied) for a given individual. We use the EM algorithm to estimate the linear transformations and the noise parameters from training data.
We propose a probabilistic distance metric that allows a full posterior over possible matches to be established. We introduce a novel feature extraction process and investigate recognition performance by using the FERET, XM2VTS, and PIE databases. Recognition performance compares favorably with contemporary approaches
Kinetically driven helix formation during the homopolymer collapse process
Using Langevin simulations, we find that simple 'generic' bead-and-spring
homopolymer chains in a sufficiently bad solvent spontaneously develop helical
order during the process of collapsing from an initially stretched
conformation. The helix formation is initiated by the unstable modes of the
straight chain, which drive the system towards a long-lived metastable
transient state. The effect is most pronounced if hydrodynamic interactions are
screened.Comment: 4 pages, 4 figure
Creating Fair Models of Atherosclerotic Cardiovascular Disease Risk
Guidelines for the management of atherosclerotic cardiovascular disease
(ASCVD) recommend the use of risk stratification models to identify patients
most likely to benefit from cholesterol-lowering and other therapies. These
models have differential performance across race and gender groups with
inconsistent behavior across studies, potentially resulting in an inequitable
distribution of beneficial therapy. In this work, we leverage adversarial
learning and a large observational cohort extracted from electronic health
records (EHRs) to develop a "fair" ASCVD risk prediction model with reduced
variability in error rates across groups. We empirically demonstrate that our
approach is capable of aligning the distribution of risk predictions
conditioned on the outcome across several groups simultaneously for models
built from high-dimensional EHR data. We also discuss the relevance of these
results in the context of the empirical trade-off between fairness and model
performance
An Investigation of the Effects of Categorization and Discrimination Training on Auditory Perceptual Space
Psychophysical phenomena such as categorical perception and the perceptual magnet effect indicate that our auditory perceptual spaces are warped for some stimuli. This paper investigates the effects of two different kinds of training on auditory perceptual space. It is first shown that categorization training, in which subjects learn to identify stimuli within a particular frequency range as members of the same category, can lead to a decrease in sensitivity to stimuli in that category. This phenomenon is an example of acquired similarity and apparently has not been previously demonstrated for a category-relevant dimension. Discrimination training with the same set of stimuli was shown to have the opposite effect: subjects became more sensitive to differences in the stimuli presented during training. Further experiments investigated some of the conditions that are necessary to generate the acquired similarity found in the first experiment. The results of these experiments are used to evaluate two neural network models of the perceptual magnet effect. These models, in combination with our experimental results, are used to generate an experimentally testable hypothesis concerning changes in the brain's auditory maps under different training conditions.Alfred P. Sloan Foundation and the National institutes of Deafness and other Communication Disorders (R29 02852); Air Force Office of Scientific Research (F49620-98-1-0108
Evaluation of the resistance of few citrus rootstocks to alkalinity by applying a faste test of secreening
Alkalinity of Moroccan soils is the major abiotic constraint on citrus production area. The best choice of citrus rootstocks adequate and resistant is a better solution to avoid this problem. The aim of this study is to develop a fast test of citrus rootstocks screening towards alkalinity. The alkaline stress was applied on ten citrus rootstocks two month old, using irrigation with a Hoagland and Arnon solution added with 1 g CaCO(3)/L and adjusted at various pH levels 6, 7 and 9. Observations concerned symptoms incidence and severity of iron chlorosis after two months of rearing. Results permitted to classify Poncirus trifoliata and Flying dragon as the most sensitive to alkalinity stresses, whereas, Citrus volkameriana and Citrus macrophylla were resistant. These conclusions are equivalent with those obtained with old citrus rootstocks in field trials
The Dynamic Relationship Between Policy and Citizens Attitude and Engagement
ํ์๋
ผ๋ฌธ(์์ฌ)--์์ธ๋ํ๊ต ๋ํ์ :ํ์ ๋ํ์ ๊ธ๋ก๋ฒํ์ ์ ๊ณต,2019. 8. Kwon, Huck-ju.Using the case of the Philippines anti-illegal drugs policy and peoples
opinion about it, this study explores the dynamic relationship between public
policy and citizens attitude and engagement with it. Drawing from Attitudinal
Policy Feedback framework developed by Pacheco (2013), this aims to
examine the mutually transforming relationship between public policy and
citizens attitude and engagement.
The paper looks into the characteristics of Philippine President
Rodrigo R. Dutertes anti-illegal drugs policy in terms of tangibility, visibility,
and length of implementation and how these become crucial factors in
generating feedback in the form of public opinion. Analysis of data from
Facebook shows the types of social media content related to the policy that
spawn strong public reaction and how peoples attitude and engagement with
the policy result to some changes in its implementation. Finally, the prospect
of this kind of dynamics between policy and citizen engagement to the
continuation of the anti-illegal drugs policy and other related policies are also
discussed. In the end, the study confirms the mutually transforming relationship
between public policy and citizens attitude and engagement.๋ณธ ๋
ผ๋ฌธ์ ํ๋ฆฌํ์ ๋ง์ฝ๊ณผ์ ์ ์๊ณผ ์ด์ ๋ํ ๊ตญ๋ฏผ ์ฌ๋ก ์ฌ๋ก๋ฅผ ํตํด
์ ์ฑ
๊ณผ ์๋ฏผ์ ํ๋ ๋ฐ ์ฐธ์ฌ์์ ์ญ๋์ ๊ด๊ณ์ ๋ํด ๊ณ ์ฐฐํ๋ค.
Pacheco(2015)๊ฐ ๊ฐ๋ฐํ ํ๋ ์ ์ฑ
ํผ๋๋ฐฑ ๋ถ์ํ(Attitudinal Policy
Feedback framework)์ ์ฌ์ฉํ์ฌ ์ ์ฑ
๊ณผ ์๋ฏผ์ ํ๋ ๋ฐ ์ฐธ์ฌ์ ๊ด๊ณ๊ฐ
์ด๋ป๊ฒ ์ํธ์์กด์ ์ผ๋ก ๋ณํํ๋์ง๋ฅผ ๋ถ์ํ๋ค.
๋ณธ ์ฐ๊ตฌ๋ ๋ก๋๋ฆฌ๊ณ ๋ํ
๋ฅดํ
ํ๋ฆฌํ ๋ํต๋ น์ ๋ถ๋ฒ ๋ง์ฝ ๊ทผ์ ์ ์ฑ
์
ํน์ง์ ์ค์ฌ์ฑ, ๊ฐ์์ฑ, ๋์
๊ธฐ๊ฐ์ ์ธก๋ฉด์์ ์ดํด๋ณด๊ณ , ์ด๋ป๊ฒ ์ ์ฑ
์ด ์ด
์ธ ๊ฐ์ง ์ค์ํ ์์ธ์ ํตํด ๊ตญ๋ฏผ ์ฌ๋ก ์ด๋ผ๋ ํํ๋ก ํผ๋๋ฐฑ ๋๋์ง๋ฅผ
์ค๋ช
ํ๋ค. ํ์ด์ค๋ถ ๊ฒ์๋ฌผ์ ๋ํ ๋ถ์ ๊ฒฐ๊ณผ, ์ ์ฑ
์ ๋ด์ฉ์ผ๋ก ํ๋ ๊ฒ์๋ฌผ
์ค ์๋ฏผ์ ๋ฐ์์ ๊ฐํ๊ฒ ์ด๋์ด๋ด๋ ํน์ ์ ํ์ด ์์์ ๋ฐ๊ฒฌํ๊ณ , ์ด๋ป๊ฒ
์ ์ฑ
์ ๋ํ ์๋ฏผ์ ํ๋์ ์ฐธ์ฌ๊ฐ ์ ์ฑ
์ํ์ ๋ณํ๋ฅผ ์ด๋์ด๋ผ ์
์๋์ง๋ฅผ ์ ์ ์์๋ค. ๋ง์ง๋ง์ผ๋ก ์ ์ฑ
๊ณผ ์๋ฏผ ์ฐธ์ฌ์ ์ญํ์ ๊ด๊ณ๋ฅผ ํตํด
ํฅํ ๋ง์ฝ ๊ทผ์ ์ ์ฑ
๊ธฐ์กฐ ์ ์ง์ ๋ํด ์ ๋งํ์๋ค. ์์ปจ๋ ๋ณธ ์ฐ๊ตฌ๋ ์ ์ฑ
๊ณผ
์๋ฏผ์ ํ๋ ๋ฐ ์ฐธ์ฌ์ ๊ด๊ณ๊ฐ ์ํธ์์กด์ ์ผ๋ก ๋ณํํ๋ค๋ ๊ฒ์
ํ์ธํด์ค๋ค๋ ์์๊ฐ ์๋ค.Abstract i
Table of Contents iii
List of Figures and Tables v
Chapter 1. Introduction 1
1.1 Statement of the Problem 4
1.2 Significance of the Study 4
1.3 Ethical Consideration 5
Chapter 2. Review of Related Literature 6
2.1 Theoretical Framework 6
Attitudinal Policy Feedback 8
2.2 Setting the Agenda of the Philippines War Against
Drugs Under the Duterte Administration 12
Chapter 3. Methodology 21
3.1. Methodological Framework 21
3.2 Methodology 24
Chapter 4. Presentation and Analysis of Data 29
4.1 How Policy Affects Peoples Attitude and Engagement 31
4.1.1 Direct Experience and Tangibility 31
4.1.2 Indirect Experience and Visibility 37
4.2 How Peoples Attitude and Engagement Affect Policy 42
4.2.1 Tokhang-for-Ransom and the Killing of Jee Ick-joo 42
4.2.2 The Death of Kian Loyd Delos Santos Caught on CCTV 44
4.2.3 Peoples Reactions to Jee and Delos Santos Deaths
and Their Implication on the Anti-Illegal Drugs Policy 48
4.3 The Future of the Policy 51
Chapter 6. Conclusion 57
Bibliography 59
Appendices 66
Appendix A. #RealNumbersPH Data Since the
Implementation of the Anti-Illegal Drugs Policy on July 01,
2016 up to September 20, 2018 66
Appendix B. Database of Policy-Related Contents Posted by
Rappler, Inquirer.net, GMA News, ABS-CBN News, and
News 5 on their Facebook Pages in July 2016 69
Appendix C. Database of Policy-Related Contents Posted by
Rappler, Inquirer.net, GMA News, ABS-CBN News, and
News 5 on their Facebook Pages in August 2016 95
Abstract in Korean 130
List of Figures and Tables
FIGURES
Figure 1. Illustration of the Relationship Between the Duterte
Administrations Anti-Illegal Drugs Policy and Peoples
Attitude and Engagement Based on Pachecos (2013) Model 12
Figure 2. TOKHANG RELOADED: PNPs New Guidelines for
Tokhangers in Implementing Oplan Tokhang 47
TABLES
Table 1. Published #RealNumbersPH Data until September 30,
2018 33
Table 2. Philippine Center for Investigative Journalisms
Comparison of Data from #RealNumbersPH, PNP Directorate
for Operations, and PNP Double Barrel Secretariat as of May 23,
2017 35
Table 3. Number of Policy-Related Contents Posted in the
Facebook Pages of Rappler, Inquirer.net, GMA News, ABS-
CBN News, and News5 in July and August 2017 and the
Number of Shares Generated by those Contents 38
Table 4. Policy-Related Content Topics of Top Media
Organizations Facebook Pages 39
Table 5. Comparison of Interactions with Facebook Contents of
Top Media Organizations on Jee Ick-joo and Kian Loyd Delos
Santos 49Maste
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