Spelling suggestions: "subject:"statelevel"" "subject:"waterlevel""
11 |
An Exploratory Study of Macro-Social Correlates of Online Property CrimeSong, Hyojong 05 July 2017 (has links)
Despite the recent decreasing trend of most traditional types of crime, online property crime (OPC), referring to crime committed online with a financial orientation such as online frauds, scams, and phishing, continues to increase. According to the Internet Crime Complaint Center, the number of reported complaints about OPC have increased by approximately sixteen fold from 16,838 cases in 2000 to 288,012 cases in 2015, and referred financial losses have also increased about sixty times from $17.8 million in 2001 to $1 billion in 2015. The increase in OPC might be directly related to advanced online accessibility due to the accelerated progress of information and communication technology (ICT). Since the progress of ICT continues forward and the advanced ICT infrastructure can affect our routine activities more significantly, issues regarding OPC may become more various and prevalent.
The present study aims to explore a macro-social criminogenic structure of OPC perpetration. Specifically, this study focused on exploring probable macro-social predictors of OPC rates and examining how effectively these possible macro-social predictors account for variance in OPC perpetration rates. In addition, this study explored possible predictors of macro-level online opportunity structure, which is expected to have a direct relationship with OPC rates. It also examined how much variance in online opportunity structure was explained by the included possible predictors. With these research purposes, the current study analyzed state-level data of the fifty states in the U.S. by applying a partial least square regression (PLSR) approach.
The results indicated that predictors related to macro-social economic conditions such as economic inequality, poverty, economic social support, and unemployment had a significant association with OPC. As expected, indicators in the domain of economic inequality predicted greater OPC rates and those in the domain of economic social support were related to lower OPC rates. However, poverty and unemployment predictors were negatively associated with OPC, which is the opposite direction of the relationships between these predictors and traditional street crime. In addition, indicators of online opportunity structure were found to have a significantly positive relationship to OPC as expected. The PLSR model for predicting OPC applied in the current study accounted for approximately 50% of variance in OPC rates across states.
For predictors of online opportunity structure, the results indicated that online opportunity was associated with state-level economic and socio-demographic characteristics. States with less poverty, more urban population, and more working age adults were more likely to report more online opportunities. The PLSR model for predicting online opportunity structure explained about 80% of variance in measured online opportunity. These results may imply that some types of macro-social conditions may have an indirect effect on OPC through online opportunity structure as well as their direct effects on OPC. Future study should pay more attention to examining structural relationships of macro-social contexts, online opportunity structure, and OPC to understand macro-level criminogenic mechanism of OPC.
|
12 |
Scalable Integration View Computation and Maintenance with Parallel, Adaptive and Grouping TechniquesLiu, Bin 19 August 2005 (has links)
"
Materialized integration views constructed by integrating data from multiple distributed data sources help to achieve better access, reliable performance, and high availability for a wide range of applications. In this dissertation, we propose parallel, adaptive, and grouping techniques to address scalability challenges in high-performance integration view computation and maintenance due to increasingly large data sources and high rates of source updates.
State-of-the-art parallel integration view computation makes the common assumption that the maximal pipelined parallelism leads to superior performance. We instead propose segmented bushy parallel processing that combines pipelined parallelism with alternate forms of parallelism to achieve an overall more effective strategy. Experimental studies conducted over a cluster of high-performance PCs confirm that the proposed strategy has an on average of 50\% improvement in terms of total processing time in comparison to existing solutions.
Run-time adaptation becomes critical for parallel integration view computation due to its long running and memory intensive nature. We investigate two types of state level adaptations, namely, state spill and state relocation, to address the run-time memory shortage. We propose lazy-disk and active-disk approaches that integrate both adaptations to maximize run-time query throughput in a memory constrained environment. We also propose global throughput-oriented state adaptation strategies for computation plans with multiple state intensive operators. Extensive experiments confirm the effectiveness of our proposed adaptation solutions.
Once results have been computed and materialized, it's typically more efficient to maintain them incrementally instead of full recomputation. However, state-of-the-art incremental view maintenance require O($n^2$) maintenance queries with n being the number of data sources that the view is defined upon. Moreover, they do not exploit view definitions and data source processing capabilities to further improve view maintenance performance. We propose novel grouping maintenance algorithms that dramatically reduce the number of maintenance queries to (O(n)). A cost-based view maintenance framework has been proposed to generate optimized maintenance plans tuned to particular environmental settings. Extensive experimental studies verify the effectiveness of our maintenance algorithms as well as the maintenance framework. "
|
13 |
Alcohol consumption in India: a systematic review and modelling study for sub-national estimates of drinking patternsRastogi, Ankit, Manthey, Jakob, Wiemker, Veronika, Probst, Charlotte 05 January 2024 (has links)
Background and Aims: In India, alcohol per capita consumption (APC) has substantially
increased over the past 2 decades. Although consumption does vary across the country,
consistent state-level data are lacking. We aimed to identify all state-level alcohol
exposure estimates since 2000 to (i) model consistent current drinking (CD) (12 months)
prevalence estimates for all 36 states/union territories (UT) in 2019 and (ii) compare
state-level CD trends with national-level APC trends.
Design: A systematic review for studies on the Indian state-level prevalence of CD, lifetime
abstinence (LA), alcohol use disorders (AUD) or the quantity of alcohol consumed
among current drinkers (QU) was conducted. Subsequently, statistical modelling was
applied.
Setting: Data were collected and modelled for all Indian states/UTs.
Participants: Studies since 2000 referring to the general adult population (≥15 years) of
at least one Indian state/UT were eligible. The total sample size covered was
29 600 000 (males: females, 1:1.6).
Measurements: Results on LA, AUD and QU were summarized descriptively. For (i) the
state-, sex- and age-specific CD prevalence was estimated using random intercept
fractional response models. For (ii) random intercept and slope models were performed.
Findings: Of 2870 studies identified, 30 were retained for data extraction. LA, AUD and
QU data were available for 31, 36 and 12 states/UTs, respectively. CD model estimates
ranged from 6.4% (95% CI = 2.1%–18.1%; males) in Lakshadweep and 1.3% (95% CI =
0.7%–2.6%; females) in Delhi to 76.1% (95% CI = 68.1%–82.6%; males) and 63.7% (95%
CI = 49.4%–75.7%; females) in Arunachal Pradesh. Over time, CD decreased in most
states/UTs in the observed data, contradicting increasing national-level APC trends.
Conclusions: Alcohol use (measured as consistent current drinking) in India has large
regional variations, with alcohol consumption being most prevalent in the North-East,
Chhattisgarh, Telangana, Himachal Pradesh, Punjab and Jharkhand.
|
14 |
Antenatal Stressful Life Events and Postpartum Depression in the United States: the Role of Women’s Socioeconomic Status at the State LevelMukherjee, Soumyadeep 01 June 2016 (has links)
The purpose of this dissertation was to examine patterns of antenatal stressful life events (SLEs) experienced by women in the United States (U.S.) and their association with postpartum depression (PPD). It further explored the role of women's state-level socio-economic status (SES) on PPD; the racial/ethnic dispartites in SLE-PPD relationship; and the role of provider communication on perinatal depression.
Data from 2009–11 Pregnancy Risk Assessment Monitoring System (PRAMS) and SES indicators published by the Institute of Women’s Policy Research (IWPR) were used. Latent class analysis (LCA) was performed to identify unobserved class membership based on antenatal SLEs. Multilevel generalized linear mixed models examined whether state-level SES moderated the antenatal SLE-PPD relationship. Of 116,595 respondents to the PRAMS 2009-11, the sample size for our analyses ranged from 78% to 99%.
The majority (64%) of participants were in low-stress class. The illness/death related-stress class (13%) had a high prevalence of severe illness (77%) and death (63%) of a family member or someone very close to them, while those in the multiple-stress (22%) class endorsed most other SLEs. Eleven percent had PPD; women who experienced all types of stressors, had the highest odds (adjusted odds ratio [aOR]: 5.43; 95% confidence interval [CI]: 5.36, 5.51) of PPD. The odds of PPD decreased with increasing state-level social/economic autonomy index (aOR: 0.75; 95% CI: 0.64, 0.88), with significant cross-level interaction between stressors and state-level SES. Among non-Hispanic blacks and non-Hispanic whites, husband/partner not wanting the pregnancy (aOR: 1.47; 95% CI: 1.14, 1.90) and drug/drinking problems of someone close (aOR: 1.37; 95% CI: 1.21, 1.55) were respectively associated with PPD. Provider communication was protective.
That 1 out of every 5 and 1 out of every 8 women were in the high- and emotional-stress classes suggests that SLEs are common among pregnant women. Our results suggest that screening for antenatal SLEs might help identify women at risk for PPD. The finding that the odds of PPD decrease with increasing social/economic autonomy, could have policy implications and motivate efforts to improve these indices. This study also indicates the benefits of antenatal health care provider communication on perinatal depression.
|
15 |
Změna kurzu ruské zahraniční politiky v 1. dekádě 21. století / Russia's Foreign Policy Change in the First Decade of the 21st CenturyValentová, Emilie January 2010 (has links)
The aim of the diploma thesis is to identify Russia's Foreign Policy change in the first decade of the 21st century. It focuses on the three most important strategic documents of the Russian Federation, the presidential decrees signed by Vladimir Putin and Dmitri Medvedev (The Foreign Policy Concepts of the Russian Federation from 2000 and 2008, The National Security Concept of the Russian Federation from 2000, The National Security Strategy of the Russian Federation from 2009 and The Military Doctrines from 2000 and 2010). Through Discourse analysis it concludes that Russia has moved to strenghtening norms of international law and multilateral cooperation between the years 2000 and 2010, it no longer uses confrontational expressions and prefers a multi-vector foreign policy accenting the Asian vector. Russia also proves to be more self-confident and ambitious. We expect a more active role in the world affairs from Russia in the second decade of the 21st century.
|
16 |
Policy Autopsy: A Failure of Regulatory Oversight to Ensure Least Restrictive Environment in Ohio’s Electronic Charter SchoolsChurchwright, Kelly K. 26 November 2018 (has links)
No description available.
|
Page generated in 0.2763 seconds