Digital Commons Network^™

Prevalence And Determinants Of Postpartum Depression In A Tertiary Care Hospital, Shiyam Sunder Tikmani, Tufail Soomro, Prashant Tikmani

Community Health Sciences

Purpose: Postpartum depression is one of the common complication of postpartum period and a major public health issue. It adversely affects the mother, her child, and the family. To determine the prevalence and determinants of postpartum depression in women delivered in a tertiary hospital Karachi.
Methods: This was a cross-sectional study carried out in a private hospital of Karachi, from 1^st February 2014 to 31^st January 2016. All women having age between 20-49 years between 4-6 weeks postpartum period consented to participate were included. Women with pre-existing co-morbid like diabetes mellitus, hypertension, physical and psychiatric illnesses, having multigestation …

Structure And Corrosion Behavior Of Sputter Deposited Ce-Al-O Coating On Al 2024-T3 Alloy Substrates, Yuanyuan Liu, Jiamu Huang, James B. Claypool, Matthew J. O'Keefe

Materials Science and Engineering Faculty Research & Creative Works

Deposition of Ce-Al-O coatings on Al 2024-T3 alloy substrates was conducted by magnetron co-sputtering of CeO₂ and Al targets. The incorporation of Al into the CeO₂ film resulted in an amorphous or nanocrystalline structure with binding energy states different from Al, Al₂O₃, and CeO₂. Electrochemical measurements indicated that the amorphous or nanocrystalline Ce-Al-O coating increased the corrosion resistance of bare Al 2024-T3 substrates by more than three orders of magnitude and exhibited a very different cathodic and anodic protective mechanism compared to Al and CeO₂ coated and as-polished Al 2024-T3 samples. …

Evidential Reasoning For Forensic Readiness, Yi-Ching Liao, Hanno Langweg

Journal of Digital Forensics, Security and Law

To learn from the past, we analyse 1,088 "computer as a target" judgements for evidential reasoning by extracting four case elements: decision, intent, fact, and evidence. Analysing the decision element is essential for studying the scale of sentence severity for cross-jurisdictional comparisons. Examining the intent element can facilitate future risk assessment. Analysing the fact element can enhance an organization's capability of analysing criminal activities for future offender profiling. Examining the evidence used against a defendant from previous judgements can facilitate the preparation of evidence for upcoming legal disclosure. Follow the concepts of argumentation diagrams, we develop an automatic judgement summarizing …

On Efficiency Of Distributed Password Recovery, Radek Hranický, Martin Holkovič, Petr Matoušek

Journal of Digital Forensics, Security and Law

One of the major challenges in digital forensics today is data encryption. Due to the leaked information about unlawful sniffing, many users decided to protect their data by encryption. In case of criminal activities, forensic experts are challenged how to decipher suspect's data that are subject to investigation. A common method how to overcome password-based protection is a brute force password recovery using GPU-accelerated hardware. This approach seems to be expensive. This paper presents an alternative approach using task distribution based on BOINC platform. The cost, time and energy efficiency of this approach is discussed and compared to the GPU-based …

Log Analysis Using Temporal Logic And Reconstruction Approach: Web Server Case, Murat Gunestas, Zeki Bilgin

Journal of Digital Forensics, Security and Law

We present a post-mortem log analysis method based on Temporal Logic (TL), Event Processing Language (EPL), and reconstruction approach. After showing that the proposed method could be adapted to any misuse event or attack, we specifically investigate the case of web server misuses. To this end, we examine 5 different misuses on Wordpress web servers, and generate corresponding log files of these attacks for forensic analysis. Then we establish attack patterns and formalize them by means of a special case of temporal logic, i.e. many sorted first order metric temporal logic (MSFOMTL). Later on, we implement these attack patterns in …

An Automated Approach For Digital Forensic Analysis Of Heterogeneous Big Data, Hussam Mohammed, Nathan Clarke, Fudong Li

Journal of Digital Forensics, Security and Law

The major challenges with big data examination and analysis are volume, complex interdependence across content, and heterogeneity. The examination and analysis phases are considered essential to a digital forensics process. However, traditional techniques for the forensic investigation use one or more forensic tools to examine and analyse each resource. In addition, when multiple resources are included in one case, there is an inability to cross-correlate findings which often leads to inefficiencies in processing and identifying evidence. Furthermore, most current forensics tools cannot cope with large volumes of data. This paper develops a novel framework for digital forensic analysis of heterogeneous …

Countering Noise-Based Splicing Detection Using Noise Density Transfer, Thibault Julliand, Vincent Nozick, Hugues Talbot

Journal of Digital Forensics, Security and Law

Image splicing is a common and widespread type of manipulation, which is defined as pasting a portion of an image onto a second image. Several forensic methods have been developed to detect splicing, using various image properties. Some of these methods exploit the noise statistics of the image to try and find discrepancies. In this paper, we propose a new counter-forensic approach to eliminate the noise differences that can appear in a spliced image. This approach can also be used when creating computer graphics images, in order to endow them with a realistic noise. This is performed by changing the …

Verification Of Recovered Digital Evidence On The Amazon Kindle, Marcus Thompson, Raymond Hansen

Journal of Digital Forensics, Security and Law

The Amazon Kindle is a popular e-book reader. This popularity will lead criminals to use the Kindle as an accessory to their crime. Very few Kindle publications in the digital forensics domain exist at the time of this writing. Various blogs on the Internet currently provide some of the foundation for Kindle forensics. For this research each fifth generation Kindle was populated with various types of files a typical user may introduce using one method, the USB interface. The Kindle was forensically imaged with AccessData’s Forensic Toolkit Imager before and after each Kindle was populated. Each file was deleted through …

Cell Capacitance Estimation And Detection, Stephen A. Sladen

Open Access Master's Theses

The aim of this thesis is to examine the behavior of the electrical properties such as the resistance and capacitance of the cell membrane. During specific biological processes, the electrical properties of the membrane can yield useful data which can be further exploited to study these phenomenons. Using simulations, an accurate model of the cell membrane was built based on a three-element analog electrical circuit. Presented in this thesis are several signal processing algorithms which are used to either estimate the parameter values of the model or detect the presence of a vesicle activity.

The estimation is achieved with least-squares …

Determining Gas Contents Of Magmas That Produce Submarine Basaltic Balloons Eruptions: Foerstner 1891 And Socorro 1993, Jacob Balcanoff

Open Access Master's Theses

Submarine eruptions that produce basaltic balloons are an uncommon eruption style only observed in five cases during historical times. Two well-studied examples occurred at Foerstner volcano in 1891 (Pantelleria, Italy) and at Socorro island, Mexico in 1993. Magmas erupted during these events were crystal-poor, alkali-rich trachybasalts to basanites. Pre-eruption gas contents (CO₂ and H₂O) have been determined using Fournier Transform Infrared Spectroscopy (FTIR) analysis of melt inclusions in olivine and plagioclase phenocrysts. Both eruptions were found to be enriched in carbon dioxide and water relative to other ocean island basaltic compositions. Foerstner inclusions contain 0.17 wt.% to …

Constructing A Postcolonial Feminist Ethnography, Jennifer Manning

Articles

Purpose – The paper details the construction of a postcolonial feminist approach to ethnography; providing insight into how the researcher developed her ethnographic approach based on her theoretical framework and demonstrating how she undertook this research. Specifically, the purpose of this paper is to outline how the researcher identified positionality and representation as the primary challenges of undertaking a postcolonial feminist ethnography with marginalised Maya women in Guatemala, and how she addressed these complexities in the field.

Design/methodology/approach – This postcolonial feminist ethnography was conducted over a three-month period in the rural highlands of Sololá, Guatemala. This approach bridges the …

Injury Scheme Claims In Gaelic Games: A Review Of 2007-2014, Mark Roe, Catherine Blake, Conor Gissane, Kieran Collins

Articles

Context: Gaelic games (Gaelic football and hurling) are indigenous Irish sports with increasing global participation in recent years. Limited information is available on longitudinal injury trends. Reviews of insurance claims can reveal the economic burden of injury and guide cost-effective injury-prevention programs.

We Must Obey God Rather Than Men: Jan Hus On The Authority Of Scripture In Relation To Church And Conscience, John C. Peckham

Andrews University Seminary Studies (AUSS)

No abstract provided.

Freedom Of Speech And Islam [Review] / Kolig, Erich, Ed., Bruce Campbell Moyer

Andrews University Seminary Studies (AUSS)

No abstract provided.

Decoding Ancient Waldensian Names: New Discoveries, P. Gerard Damsteegt

Andrews University Seminary Studies (AUSS)

No abstract provided.

The Liquidity Crisis, Investor Sentiment, And Reit Returns And Volatility, Daniel Huerta, Peter V. Egly, Diego Escobari

School of Economics and Finance Faculty Publications

The real estate investment trust (REIT) industry experienced a liquidity crisis resulting from reduced access to credit commitments as banks were restoring their balance sheets during the 2007–2009 financial crisis. Employing generalized autoregressive conditional heteroscedasticity (GARCH) models, we examine the impact of the liquidity crisis and investor sentiment on REIT returns and volatility over the December 2001 to February 2013 period. We find that the liquidity crisis negatively impacts REIT returns and helps explain increases in volatility; this finding is robust to multiple specifications. We show that investor sentiment is a significant factor in the REIT return-generating process with institutional …

Brief Of The Domestic Violence Legal Empowerment And Appeals Project, Aequitas: The Prosecutors' Resource On Violence Against Women, & Futures Without Violence As Amici Curiae In Support Of Respondent, Voisine V. United States, No. 14-10154 (U.S. Jan. 26, 2016)., Joan S. Meier

GW Law Faculty Publications & Other Works

No abstract provided.

Explaining Variations In Bailout Policies: A Review Of Cornelia Woll's The Power Of Inaction, Arthur E. Wilmarth Jr., Kelsey M. Barnes

GW Law Faculty Publications & Other Works

In The Power of Inaction: Bank Bailouts in Comparison (Cornell Univ. Press, 2014), Professor Cornelia Woll asks a question of fundamental importance: "What was the nature of power [that] finance wielded over the fate of the economy and the crisis management in 2008, which affected the lives of so many?" To measure the effective power that the financial industry wielded during the crisis, Woll compares the terms of bailout programs that governments adopted in six countries. She contends that financial institutions were more likely to receive larger amounts of public support, and to make minimal contributions to rescue plans, in …

Towards A Law Of Coworkers, Naomi Schoenbaum

GW Law Faculty Publications & Other Works

A growing body of research reveals what most Americans already know from experience: that our coworkers play a central role in our lives. The significance of coworker relationships is only magnified in an era of expanding work hours in the twenty-four-seven economy. But the law does not reflect this reality, and instead relegates coworkers to the status of legal strangers. This Article argues that the law’s failure to recognize coworker relationships undermines not only these relationships, but also the goals of work law, and makes the case for a law of coworker relationships that would promote the equal, fair, and …

Photocopies, Patents, And Knowledge Transfer: 'The Uneasy Case' Of Justice Breyer's Patentable Subject Matter Jurisprudence, Dmitry Karshtedt

GW Law Faculty Publications & Other Works

One aspect of Justice Stephen Breyer’s discomfort with patents, as expressed in his opinion for the Supreme Court in Mayo v. Prometheus and his dissent from the order dismissing certiorari in LabCorp v. Metabolite, is strikingly similar to one of his critiques of copyright law in The Uneasy Case for Copyright, a well-known article he wrote as Professor Breyer more than forty-five years ago. In The Uneasy Case, Breyer argued that the burdens on duplication of technical articles imposed by copyright law restrict the flow of information and prevent scientists from enjoying spillover benefits of published research. His patent opinions …

Shrinkage Estimation Of Dynamic Panel Data Models With Interactive Fixed Effects, Xun Lu, Liangjun Su

Research Collection School Of Economics

We consider the problem of determining the number of factors and selecting the proper regressors in linear dynamic panel data models with interactive fixed effects. Based on the preliminary estimates of the slope parameters and factors a la Bai (2009) and Moon and Weidner (2015), we propose a method for simultaneous selection of regressors and factors and estimation through the method of adaptive group Lasso (least absolute shrinkage and selection operator). We show that with probability approaching one, our method can correctly select all relevant regressors and factors and shrink the coefficients of irrelevant regressors and redundant factors to zero. …

Hot Property In New Zealand: Empirical Evidence Of Housing Bubbles In The Metropolitan Centres, Ryan Greenaway-Mcgrevy, Peter C. B. Phillips

Research Collection School Of Economics

Using recently developed statistical methods for testing and dating exuberant behaviour in asset prices we document evidence of episodic bubbles in the New Zealand property market over the past two decades. The results show clear evidence of a broad-based New Zealand housing bubble that began in 2003 and collapsed over mid-2007 to early 2008 with the onset of the worldwide recession and the financial crisis. New methods of analysing market contagion are also developed and are used to examine spillovers from the Auckland property market to the other metropolitan centres. Evidence from the latest data reveals that the greater Auckland …

Semiparametric Estimation Of Partially Linear Dynamic Panel Data Models With Fixed Effects, Liangjun Su, Yonghui Zhang

Research Collection School Of Economics

In this paper, we study a partially linear dynamic panel data model with fixed effects, where either exogenous or endogenous variables or both enter the linear part, and the lagged-dependent variable together with some other exogenous variables enter the nonparametric part. Two types of estimation methods are proposed for the first-differenced model. One is composed of a semiparametric GMM estimator for the finite-dimensional parameter θ and a local polynomial estimator for the infinite-dimensional parameter m based on the empirical solutions to Fredholm integral equations of the second kind, and the other is a sieve IV estimate of the parametric and …

Modified Bilateral Sagittal Split Osteotomy For Correction Of Severe Anterior Open Bite: Technical Note And Case Report, Prasarn Tangarturonrasme, Laddawun Sununliganon

Chulalongkorn Medical Journal

Bilateral sagittal split osteotomy (BSSO) is a common procedure used for the correction of mandibular anomalies. This procedure has been through various modifications that aims to increase skeletal stability and reduce possible complications. So far, the limitation of BSSO technique remains a concern in certain circumstances, such as skeletal relapse after closing of anterior open bite, especially in severe cases. Also, there is a risk of facial paralysis following a large amount of mandibular setback in a severe mandibular prognathism. Therefore, concomitant surgery such as segmented osteotomy and/or maxillary osteotomy may be used for correction of the deformity in order …

The Evolution And Development Of A Novel Trait In Sepsidae, Dacotah Melicher

Biological Sciences

Evolutionary novelty, the appearance of new traits with no existing homology, is central to the adaptive radiation of new species. Novel traits inform our understanding of development and how developmental mechanisms can generate novelties. Sepsid flies (Diptera: Sepsidae) have a sexually dimorphic, jointed appendage used for courtship and mating. The appendage develops from the fourth abdominal histoblast nest rather than an imaginal disc. Histoblast nests in other species produce the adult epidermis and lack three-dimensional organization. The sepsid system is an opportunity to investigate the evolutionary history of a novel trait and the developmental mechanisms that pattern epidermal tissue into …

Evidence Of Climate Niche Creation In The Northern Great Plains: The History Of Invasion, Population Genetics, Competitive Effect, And Long-Term Trends Of Invasive Poa Pratensis L., Lauren Alexsandra Dennhardt

Biological Sciences

Understanding the mechanisms of invasion is critical in order to control an invasive species. Poa pratensis L. (Kentucky bluegrass) is an invasive species that has been present in the northern Great Plains (NGP) for over 100 years, but has become a dominant species in the mixed grass region recently. My dissertation seeks to answer one critical question—why has P. pratensis become such a successful invasive species in the NGP? I first asked if the invasion was caused by adaptation and/or propagule pressure. I screened the genetic fingerprint of invasive P. pratensis in the NGP along with measuring the genomic content …

Interactively Cutting And Constraining Vertices In Meshes Using Augmented Matrices, Yu-Hong Yeung, Jessica Crouch, Alex Pothen

Computer Science Faculty Publications

We present a finite-element solution method that is well suited for interactive simulations of cutting meshes in the regime of linear elastic models. Our approach features fast updates to the solution of the stiffness system of equations to account for real-time changes in mesh connectivity and boundary conditions. Updates are accomplished by augmenting the stiffness matrix to keep it consistent with changes to the underlying model, without refactoring the matrix at each step of cutting. The initial stiffness matrix and its Cholesky factors are used to implicitly form and solve a Schur complement system using an iterative solver. As changes …

Iowa Journal Of Communication, Volume 48, Number 2, Spring 2016 [Download Entire Issue]

Iowa Journal of Communication

No abstract provided.

Exploring The Appeal Of Documentary-Based Programming: Discerning Viewer Enjoyment Of Reality Television Thorugh Uses And Gratifications, Kristin M. Barton

Iowa Journal of Communication

This study explores how documentary-based reality shows featuring varied types of content influence the gratifications obtained (GO) by viewers. Participants completed surveys which asked about their overall consumption of reality programming and, more specifically, about their reasons for watching the documentary-based shows Jersey Shore, Deadliest Catch, and The Real Housewives series of programs. Results indicated that perceived reality of these shows and the participants who appear on them are the two primary factors in why people choose to watch this particular reality subgenre. This study concludes with an examination of the current findings within the context of previous studies in …

Building An Inclusive Workplace Culture: With Special Focus On The South African Context, Seth Naicker

All Electronic Theses and Dissertations

We are living in a world of ever-increasing diversity. It is diversity in general, but also diversity specific to the aspect of people. People are engaging one another across culture, language, race/ethnicity, gender, sexual orientation, abilities, and class. In some ways, the world has become smaller. One can be sitting in South Africa, and engaging people through social media throughout the world. Facebook has made our world smaller. However, in and amongst our growing diversity there are continued social factors of prejudice, lack of human rights, and warring nations because of their differences, for example the difference of faith, and …