The transfer and persistence of environmental trace indicators, and methods for digital data acquisition from photographs and micrographs: applications for forensic science research

Environmental forms of trace evidence (such as mineral grains, pollen grains, algae, and sediment) can offer valuable insights within forensic casework. An issue facing forensic science as a whole, and these environmental indicators specifically, is a relative dearth of empirical research which would underpin the interpretation of such indicators when attempting forensic reconstruction. This thesis aims to address this lacuna, undertaking experiments to: (1) Explore variables which affect the rates of transfer and persistence, with specific focus upon quartz grains (a terrestrial indicator) and diatom valves (an aquatic indicator) upon footwear materials (a substrate that has been under-represented in past studies); (2) Conduct research into the effects of particle size and morphology upon transfer and persistence; (3) Develop and adapt methodologies to undertake this research. Accordingly, the outputs of this thesis are: (1) The creation of new datasets which could inform the interpretation of these trace indicators within forensic investigations and crime reconstruction scenarios and (2) The development of novel methodologies which could be employed in future research to attempt to accelerate data collection and analysis, without compromising on accuracy. This research is interdisciplinary, combining theory from forensic science, analytical techniques from the environmental sciences, and some elements of image processing and analysis. This research was funded by the Engineering and Physical Sciences Research Council of the United Kingdom through the Security Science Doctoral Training Research Centre (UCL SECReT) based at University College London (EP/G037264/1)

AWARENESS, ASSESSMENT, ASSISTANCE: COMBATTING HUMAN TRAFFICKING IN THE UNITED STATES THROUGH EDUCATION REFORM

Modern-day slavery, in the form of human trafficking, is an issue that affects countries, communities, and individuals around the world. In the United States, the National Human Trafficking Hotline receives an average of 141 calls per day, a number that doesn’t even encompass the many victims without access to or knowledge of this resource. Despite the prevalence of human trafficking in the United States, many Americans are uninformed and unaware of the realities of human trafficking. In the face of this growing concern, the United States must employ new tools and tactics to raise awareness, support victims of trafficking, and prevent future victims from being targeted. This paper evaluates anti-trafficking education reforms within four sectors: professional counseling, the healthcare system, the public education system, and law enforcement. These reforms would help to directly combat the negative effects of misinformation that allow traffickers to go unnoticed and victims unsupported, and increase understanding of human trafficking. The four sectors were evaluated based on efficacy, cost efficiency, practical feasibility, and political and public acceptability. This thesis concludes that education reform for law enforcement best fulfills the criteria, as law enforcement officers often act as the “front line” of human trafficking identification, prevention, and response

Cost-effectiveness of Accelerated Study in Associate Programs (ASAP) of the City University of New York (CUNY)

Although community colleges enroll almost half of the students engaged in postsecondary education, they have poor success in student completion of degrees. Nationally it appears that less than a quarter of community college students obtain the two-year associate degree, and the success rate is even lower in urban community colleges. In response, the City University of New York (CUNY) evaluated the obstacles to degree completion and responded by establishing the Accelerated Study in Associate Programs (ASAP). ASAP attempts to assist students in overcoming financial, academic, and scheduling difficulties that undermine degree attainment. An early evaluation of ASAP students over three years found that in comparison with a matched group of students in six community colleges of CUNY, the graduation rates doubled from about a quarter of students completing to more than half. But ASAP does require additional financial resources. The purpose of this study was to undertake a cost-effectiveness analysis to see if the additional costs were compensated by a higher graduation rate sufficient to justify those costs. The cost of producing an additional graduate in the comparison group without ASAP was compared with the cost when ASAP was provided. The conclusion is that ASAP is so much more effective in producing additional graduates in a timely fashion and that the cost per graduate for ASAP is comparable to or less than that of the traditional approach. ASAP can increase considerably the number of CUNY community college graduates while actually reducing costs

Benefit-Cost Analysis of Accelerated Study in Associate Programs (ASAP) of the City University of New York (CUNY)

This study evaluates CUNY’s Accelerated Study in Associate Programs (ASAP) from a benefit-cost perspective. ASAP is designed to accelerate degree completion within three years at community colleges. This report builds on the CUNY evaluations of ASAP, which provide consistent evidence for the dramatic success of ASAP on increasing the timely completion of associate degrees. Although ASAP requires more resources per student than the traditional associate program, the cost per graduate was found to be lower because of its much higher effectiveness in producing graduates. The benefit-cost analysis of ASAP enables us to calculate the monetary costs and benefits of this intervention with particular emphasis on the financial returns to the taxpayer. We estimate the benefits arising from higher tax revenues and lower costs of spending on public health, criminal justice, and public assistance and compare them with the required investment for ASAP. The estimates show that there are large financial returns on ASAP investment for the taxpayer and for the students in the program. In all cases, the benefits exceeded the costs. For each dollar of investment in ASAP by taxpayers, the return was between three and four dollars and around twelve dollars for each dollar invested by the individuals, suggesting that ASAP is a very productive public and private investment. When applied to the much higher ability of ASAP to produce high graduation rates, the overall returns to the taxpayer are impressive. A cohort of 1,000 students enrolled in ASAP would generate fiscal benefits for the taxpayer of more than $46 million beyond those of investing an approximately equal amount in the conventional degree program. This is a very substantial monetary return for this educational intervention

Accelerating Community College Graduation Rates: A Benefit–Cost Analysis

This article reports a benefit–cost evaluation of the Accelerated Study in Associate Programs (ASAP) of the City University of New York (CUNY). ASAP was designed to accelerate associate degree completion within 3 years of degree enrollment at CUNY’s community colleges. The program evaluation revealed that the completion rate for the examined cohort increased from 24.1% to 54.9%, and cost per graduate declined considerably (Levin & Garcia, 2012; Linderman & Kolenovic, 2012). The returns on investment to the taxpayer include the benefits from higher tax revenues and lower costs of spending on public health, criminal justice, and public assistance. For each dollar of investment in ASAP by taxpayers, the return was $3 to$4. For each additional graduate, the taxpayer gained an amount equal to a certificate of deposit with a value of $146,000 (net of the costs of the investment). Based on these estimated returns, a cohort of 1,000 students enrolled in ASAP would generate net fiscal benefits for the taxpayer of more than$46 million relative to enrolling in the conventional degree program. ASAP results demonstrate that an effective educational policy can generate returns to the taxpayer that vastly exceed the public investment required

Lithospheric deformation in the Canadian Appalachians : evidence from shear wave splitting

This work was funded by Leverhulme Trust research project grant RPG-2013-332. Imperial College Maritimes network stations were provided through Natural Environment Research Council (NERC) Geophysical Equipment Facility loan 986. Logistical field support was provided by D. Heffler, D. Simpson, and residents of Nova Scotia and New Brunswick. Data for Portable Observatories for Lithospheric Analysis and Research Investigating Seismicity (POLARIS) and Canadian National Seismograph Network stations were downloaded from the Canadian National Data Centre. POLARIS stations were funded by the Canadian Foundation for Innovation, Natural Resources Canada and Industry Canada. FD is supported by Natural Sciences and Engineering Research Council of Canada through the Discovery Grants and Canada Research Chair programmes. AB is funded by the NERC Doctoral Training Partnership: Science and Solutions for a Changing Planet. We thank Thomas Plenefisch and an anonymous reviewer for their comments on this manuscript.Peer reviewedPublisher PD

The impact of exposure to cartoons promoting healthy eating on children's food preferences and choices

Objective: This study explored whether a cartoon show with healthy eating messages positively affected children's food choices and food preferences.Design: Experimental between-subjects design.Setting: Four elementary schools in Portugal were investigated.Participants: Children (aged 4-8 years; n = 142) were randomly assigned to 1 of 2 groups: a comparison group (n = 73) was exposed to cartoons with no reference to food and an intervention group (n = 69) was exposed to cartoons with healthy eating messages. After viewing, each child was given the opportunity to eat ad libitum for 10 minutes from a small selection of snack foods.Main Outcome Measure: Number of healthy and unhealthy food items chosen. Food preferences were measured using an adapted version of the Leeds Food Preference Checklist.Analysis: Generalized linear models were used to test for differences between groups. Results were considered significant at P <= .05.Results: Children in the experimental group chose significantly more healthy food items than did those in the comparison group (B = -.600; SE = .19; P < .05).Conclusions and Implications: Future studies may address the effect of prolonged exposure to healthy eating cartoons. Cartoons can be used to promote healthy food choices and can be a part of health promotion campaigns.This research was partially supported by Fundacao para a Ciencia e Tecnologia through a European Union COMPETE program grant to Eva Conceicao (IF/01219/2014), and a postdoctoral scholarship (SFRH/BPD/94490/2013) to Ana Rita Vaz, cofinanced by FEDER under the PT2020 Partnership Agreement (UID/PSI/01662/2013) and the project PTDC/MHC-PCL/4974/2012. This research was supported, in part, by the Portuguese Foundation for Science and Technology and the Portuguese Ministry of Science, Technology, and Higher Education through national funds and cofinanced by FEDER through COMPETE2020 under the PT2020 Partnership Agreement (POCI-01-0145-FEDER-007653). The authors would like to thank Nutri Ventures for adapting the episodes for the research purposes. They would also like to thank Ana Rito for her suggestions regarding the study protocol

Process design for optimizing text-based communication between physicians and nurses

Background and Aim Communication between physicians and nurses is a cornerstone of high-quality inpatient care. HIPAA-compliant text-based methods offer an alternative to the pager for communication between nurses and physicians. While messaging is popular in the personal setting, text-based professional communication in hospitals may increase the number of messages without improving coordination between care providers. (1) In addition, urgent messages that are more appropriately calls could be missed by the physician, leading to a delay in action. Other institutions use triage systems to communicate a question or clinical change by the urgency of expected physician response, which have attempted to mitigate this issue. (2) We aimed to improve bidirectional communication between housestaff and nursing with a communication process developed jointly by both parties using QI methods such as stakeholder analysis and a structured Work-Out session to brainstorm solutions

Establishing a core outcome set for peritoneal dialysis : report of the SONG-PD (standardized outcomes in nephrology-peritoneal dialysis) consensus workshop

Outcomes reported in randomized controlled trials in peritoneal dialysis (PD) are diverse, are measured inconsistently, and may not be important to patients, families, and clinicians. The Standardized Outcomes in Nephrology-Peritoneal Dialysis (SONG-PD) initiative aims to establish a core outcome set for trials in PD based on the shared priorities of all stakeholders. We convened an international SONG-PD stakeholder consensus workshop in May 2018 in Vancouver, Canada. Nineteen patients/caregivers and 51 health professionals attended. Participants discussed core outcome domains and implementation in trials in PD. Four themes relating to the formation of core outcome domains were identified: life participation as a main goal of PD, impact of fatigue, empowerment for preparation and planning, and separation of contributing factors from core factors. Considerations for implementation were identified: standardizing patient-reported outcomes, requiring a validated and feasible measure, simplicity of binary outcomes, responsiveness to interventions, and using positive terminology. All stakeholders supported inclusion of PD-related infection, cardiovascular disease, mortality, technique survival, and life participation as the core outcome domains for PD