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Quorum Blockchain Stress Evaluation In Different Environments, Daniel P. Mera 2019 CUNY John Jay College

Quorum Blockchain Stress Evaluation In Different Environments, Daniel P. Mera

Student Theses

In today’s world, the Blockchain technology is used for different purposes has brought an increment in the development of different Blockchain platforms, services, and utilities for storing data securely and efficiently. Quorum Blockchain, an Ethereum fork created by JPMorgan Chase, has placed itself in one of the widely used, efficient and trustful Blockchain platforms available today. Because of the importance which Quorum is contributing to the world, it is important to test and measure different aspects of the platform, not only to prove how efficient the software can be but as well as to have a clear view on ...


Reproducibility Of Automated Bullet Matching Scores Using High-Resolution 3d Lea Scans, Kiegan Rice 2019 Iowa State University

Reproducibility Of Automated Bullet Matching Scores Using High-Resolution 3d Lea Scans, Kiegan Rice

CSAFE Presentations and Proceedings

No abstract provided.


Simultaneous Determination Of Fourteen Antipsychotic Drugs In Whole Blood By Solid Phase Extraction And Liquid Chromatography Tandem Mass Spectrometry, Theresa M. Dawe 2019 CUNY John Jay College

Simultaneous Determination Of Fourteen Antipsychotic Drugs In Whole Blood By Solid Phase Extraction And Liquid Chromatography Tandem Mass Spectrometry, Theresa M. Dawe

Student Theses

Anti-psychotic drugs are commonly prescribed to patients to treat several mental conditions, such as bipolar, schizophrenia, and manic-depressive disorder. The analysis of anti-psychotic drugs in blood is a common practice in clinical and forensic toxicology, to monitor drug treatment (therapeutic drug monitoring) or to explain the cause of the impairment or intoxication in human performance and in postmortem cases. However, most of the current studies have been performed in plasma, and a limited number in blood. We developed and validated a method to confirm and quantify a panel of commonly prescribed anti-psychotic drugs in whole blood using solid phase extraction ...


Forensic Analysis Of Spy Applications In Android Devices, Shinelle Hutchinson, Umit Karabiyik 2019 Sam Houston State University

Forensic Analysis Of Spy Applications In Android Devices, Shinelle Hutchinson, Umit Karabiyik

Annual ADFSL Conference on Digital Forensics, Security and Law

Smartphones with Google's Android operating system are becoming more and more popular each year, and with this increased user base, comes increased opportunities to collect more of these users' private data. There have been several instances of malware being made available via the Google Play Store, which is one of the predominant means for users to download applications. One effective way of collecting users' private data is by using Android Spyware. In this paper, we conduct a forensic analysis of a malicious Android spyware application and present our findings. We also highlight what information the application accesses and what ...


Novice Ideas: Handwriting Comparisons Conducted By An Untrained Individual, Maia Lister 2019 San Jose State University

Novice Ideas: Handwriting Comparisons Conducted By An Untrained Individual, Maia Lister

Themis: Research Journal of Justice Studies and Forensic Science

Forensic analysis of questioned documents includes chemical analyses of paper and ink as well as handwriting comparisons. Several elements affect handwriting analyses, including the presence of discriminatory factors that can individualize a handwriting sample and whether the handwriting has been disguised. Five handwriting samples were gathered from six individuals comprising of one reference, three natural unknowns, and one disguised sample per person. A novice conducted analyses on every collected sample and conducted comparisons of the reference sample to the unknown and disguised samples in an attempt to correctly source the unknown and disguised samples. The novice showed a high level ...


The Accumulation Of Wear On Footwear Pattern Analysis, Sarah Pawloski 2019 San Jose State University

The Accumulation Of Wear On Footwear Pattern Analysis, Sarah Pawloski

Themis: Research Journal of Justice Studies and Forensic Science

Wear is defined as the erosion of a shoe’s outsole or the loss of tread pattern, and it happens gradually over time with use. After a shoeprint is collected from a crime scene, it is questioned whether an individualization can be made if an exemplar is created after additional use of the shoe. The shoes of ten volunteers at San Jose State University were analyzed over a period of 40-45 days. Wear and Randomly Acquired Characteristics (RACs) were analyzed over time to determine if there were any observable changes or additions to the already present wear. It was hypothesized ...


Decomposition Of Pig Carcasses At Varying Room Temperature, Jacqueline Abad Santos 2019 San Jose State University

Decomposition Of Pig Carcasses At Varying Room Temperature, Jacqueline Abad Santos

Themis: Research Journal of Justice Studies and Forensic Science

The goal of this study is to assess the qualitative scoring of decomposition scales with statistical analysis while also determining which indoor environment will decompose the fastest. When comparing the three indoor environments, water decomposition appears to be the fastest, but the method of analysis for this study determines that using decomposition scales to analyze such environments may produce statistically insignificant results. For this study, piglets were put in a dry steel tub, a water filled steel tub, and a suitcase. These were recorded using photographs for 25 days and then scored using decomposition scales. The total score was divided ...


Physical Match: Uniqueness Of Torn Paper, Marilyn Aguilar 2019 San Jose State University

Physical Match: Uniqueness Of Torn Paper, Marilyn Aguilar

Themis: Research Journal of Justice Studies and Forensic Science

In the forensic science field, it is generally accepted that all tears and fractures are unique; however, there is limited scientific evidence to support this. This study tests the claim that all tears are unique, focusing on paper. One-hundred Office Depot brand 3” x 5” blank, white index cards were torn in half by hand. Six halves were randomly removed; the remaining 94 halves were mixed and then matched by a novice using end-match analysis. The removal of the 6 random halves left 44 matching pairs. Of the remaining halves, all 44 pairs were correctly matched. The results show that ...


Scientific Evidence Admissibility: Improving Judicial Proceedings To Decrease Erroneous Outcomes, Leica Kwong 2019 San Jose State University

Scientific Evidence Admissibility: Improving Judicial Proceedings To Decrease Erroneous Outcomes, Leica Kwong

Themis: Research Journal of Justice Studies and Forensic Science

In the United States, Federal Rules of Evidence 702, the Frye and Daubert standards govern the admissibility of scientific evidence in the courtroom. Some states adopted Frye while others adopted Daubert, causing varying judicial outcomes. The verdicts in some cases may be erroneous due to a nationally used standard. Frye has broad criteria of requiring scientific evidence to be generally accepted. While Daubert contains more requirements for the evidence to be admissible, such as peer review, publication, and scientific principles. Daubert, alongside FRE 702, provides a thorough guideline for trial judges who have the gatekeeping role to decide admissibility aiming ...


Developing And Validating A Fast And Accurate Method To Quantify 18 Antidepressants In Oral Fluid Samples Using Spe And Lc-Msms, Sanghee S. Shin 2019 CUNY John Jay College

Developing And Validating A Fast And Accurate Method To Quantify 18 Antidepressants In Oral Fluid Samples Using Spe And Lc-Msms, Sanghee S. Shin

Student Theses

Antidepressant drugs are one of the most widely used medicines for treating major depressive disorders for long time periods. Oral fluid (OF) testing offers an easy and noninvasive sample collection. Detection of antidepressants in OF is important in clinical and forensic settings, such as therapeutic drug monitoring and roadside testing for driving under influence. We developed and validated a comprehensive liquid chromatography tandem mass spectrometry method for 18 antidepressants (amitriptyline, bupropion, citalopram, clomipramine, cyclobenzaprine, desipramine, desvenlafaxine, doxepin, duloxetine, fluoxetine, imipramine, mirtazapine, nortriptyline, paroxetine, sertraline, trazodone, trimipramine, venlafaxine) in oral fluid collected by Quantisal® oral collection devices. 0.5 mL of ...


Multiple Contacts Of Drug Contaminated Fingermarks And Their Analysis With Raman Microspectroscopy, Victoria DePrimo 2019 University of New Haven

Multiple Contacts Of Drug Contaminated Fingermarks And Their Analysis With Raman Microspectroscopy, Victoria Deprimo

Master's Theses

This thesis research aimed to determine if substrate, enhancement technique, and multiple contacts affect the detection and identification of drugs in fingermarks using Raman Spectroscopy. It has the potential to be of great importance in forensic science as fingermarks are one of the most important traces left behind at crime scenes and illicit drugs are a significant criminal justice problem. Thus, being able to associate illicit drugs with a specific fingermark has great potential for forensic science, as it can put the drugs in the hands of a specific individual.

The ridges of fingerprints trap trace amounts of material that ...


Examining Witness Testimony In Domestic Homicides, Hana Chae 2019 City University of New York (CUNY)

Examining Witness Testimony In Domestic Homicides, Hana Chae

Student Theses

The present study investigated the effects of varying witness testimony on mock jurors’ perceptions of a case where a woman utilizes self-defense as a reason for killing her husband during a domestic dispute. A 3 (expert witness) x 3 (child witness) design was used to examine the effects of two different forms of expert testimony (Battered Woman Syndrome [BWS] & Social Agency [SA]) and its interaction with presence of child witness [age 5 & age 8]. Jury eligible participants (N = 245) were recruited from Amazon Mechanical Turk (MTurk). It was hypothesized that the presence of an expert witness would positively impact jurors ...


Determination Of Intersex Humans In Human Remains, Audria Payne 2019 University at Albany, State University of New York

Determination Of Intersex Humans In Human Remains, Audria Payne

CURCE Annual Undergraduate Conference

Currently, there isn’t much research on whether forensic anthropologists include the identification of intersex humans in human remains. Forensic anthropologists tend to have varied training that is related to identifying skeletal remains, but there isn’t much research about how to identify intersex humans after death or whether they have come across intersex in skeletal remains at all, besides those they have classified as ambiguous. In this paper, I will be researching various skeletal remains to see if the current identification methods of identifying sex are accurate in identifying intersex. I will also research ambiguous and undetermined remains to ...


Analysis Of Error Within Forensic Measurements And Photogrammetry Programs, Amy Douglas 2019 University of Nebraska - Lincoln

Analysis Of Error Within Forensic Measurements And Photogrammetry Programs, Amy Douglas

Honors Theses, University of Nebraska-Lincoln

Digital images and photography have been considered commonplace in forensic science since the late 1990’s. Photogrammetry is a tool used in forensic science to measure objects within photographs that contain a scale or programs that are able to measure items in 3D images. Items at crime scenes often need to be measured and forensic scientists may not know what the best option is for their situation. This research will be conducted to show which type of measurement technique is most accurate, calculated against NIST traceable measurements, at various sizes of objects. The measurement techniques that will be tested are ...


Automatic Matching Of Scans From Hamby Sets, Heike Hofmann, Susan VanderPlas, Alicia L. Carriquiry 2019 Iowa State University

Automatic Matching Of Scans From Hamby Sets, Heike Hofmann, Susan Vanderplas, Alicia L. Carriquiry

CSAFE Presentations and Proceedings

No abstract provided.


Investigating The Masking Effects Of Blood On Organic Gunshot Residue Using Gc/Ms, Raman, And Atr-Ftir, Tyler Willits 2019 University of New Haven

Investigating The Masking Effects Of Blood On Organic Gunshot Residue Using Gc/Ms, Raman, And Atr-Ftir, Tyler Willits

Master's Theses

Gunshot residue (GSR) can be an indicator for determining the distance of a firearm discharge and linking potential suspects and witnesses to a shooting event. However, the evidentiary value of inorganic gunshot residue (IGSR), commonly used to detect GSR, has been called into question due to the potential for false negatives and false positives. Organic gunshot residue (OGSR) acts as supporting evidence; this increases the overall confidence of the examiner, as well as the value of gunshot residue evidence as a whole.

Current research has focused on three main areas for OGSR. The first is what compounds we should identify ...


The Forensic Analysis Of Skin-Safe Stamp Pad Inks, Swetha Rajagopal 2019 CUNY John Jay College

The Forensic Analysis Of Skin-Safe Stamp Pad Inks, Swetha Rajagopal

Student Theses

Skin-safe stamp pad inks are currently being used at locations such as clubs, zoos and other events with the purpose of stamping individuals that visit the location. This is done in an attempt to monitor the number and activity of visitors. Ink manufacturing companies generally tend to experiment with a number of different combinations of the different components of ink, in order to obtain desirable properties. The combinations are usually proprietary and that very nature of the inks ends up making them, possibly unique and individual. The analysis, identification and possible individualization of the chemical composition of these inks could ...


Adapting The Chumbley Score To Match Striae On Land Engraved Areas (Leas) Of Bullets, Ganesh Krishnan, Heike Hofmann 2019 Iowa State University

Adapting The Chumbley Score To Match Striae On Land Engraved Areas (Leas) Of Bullets, Ganesh Krishnan, Heike Hofmann

CSAFE Publications

The same‐source problem remains a major challenge in forensic toolmark and firearm examination. Here, we investigate the applicability of the Chumbley method (J Forensic Sci, 2018, 63, 849; J Forensic Sci, 2010, 55, 953) (10,12), developed for screwdriver markings, for same‐source identification of striations on bullet LEAs. The Hamby datasets 44 and 252 measured by NIST and CSAFE (high‐resolution scans) are used here. We provide methods to identify parameters that minimize error rates for matching of LEAs, and a remedial algorithm to alleviate the problem of failed tests, while increasing the power of the test and ...


Determining The Region Of Origin Of Blood Spatter Patterns Considering Fluid Dynamics And Statistical Uncertainties, Daniel Attinger, Patrick M. Comiskey, Alexander L. Yarin, Kris De Brabanter 2019 Iowa State University

Determining The Region Of Origin Of Blood Spatter Patterns Considering Fluid Dynamics And Statistical Uncertainties, Daniel Attinger, Patrick M. Comiskey, Alexander L. Yarin, Kris De Brabanter

CSAFE Publications

Trajectory reconstruction in bloodstain pattern analysis is currently performed by assuming that blood drop trajectories are straight along directions inferred from stain inspection. Recently, several attempts have been made at reconstructing ballistic trajectories backwards, considering the effects of gravity and drag forces. Here, we propose a method to reconstruct the region of origin of impact blood spatter patterns that considers fluid dynamics and statistical uncertainties. The fluid dynamics relies on defining for each stain a range of physically possible trajectories, based on known physics of how drops deform, both in flight and upon slanted impact. Statistical uncertainties are estimated and ...


Dna Methylation Methods For Donor Age Prediction Using Touch Dna, Emily Neverett 2019 University of New Haven

Dna Methylation Methods For Donor Age Prediction Using Touch Dna, Emily Neverett

Master's Theses

The International Labor Organization (ILO) estimated over 30 million individuals fall victim to human trafficking each year, of which, 50% are children below the age of 16. In 2012, the ILO reported there to be 168 million child laborers worldwide, with many trafficked into hazardous conditions to manufacture consumer products that are sold in developed countries. This is a modern form of slavery with poor working conditions, no access to education, and low wages. The hidden nature of this crime, however, makes it extremely difficult to identify and locate victims of forced child labor, and thus making it challenging to ...


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