Healthy and Safe Neighborhoods

Final project for URSP688L: Planning Technologies (Fall 2015). University of Maryland, College Park.For this project the Healthy and Safe Neighborhoods group worked with Baltimore’s Southwest Partnership (SWP) to create mapping resources for their seven partnering neighborhoods. The primary focus was to investigate the health and safety of Southwest Baltimore’s current neighborhood using the most recent ACS (American Community Survey) and Census Data as well as open source data provided by the City and the SWP, to determine if certain conditions influence one another. Like much of Baltimore, the Partnership’s neighborhoods have been isolated and neglected due to white flight, racially restrictive zoning, redlining, and “decades of disinvestment.”1 By using GIS mapping to visualize the neighborhood conditions and GIS analysis to pinpoint areas of opportunity and concern, we hope to help SWP focus their resources to attract new residents and investment, particularly from its neighboring partners and anchor institutions. Recently planners have used GIS to map areas of opportunity and spatial mismatch where, for example, employment needs do not match resident skills. Using crime data provided by the SWP and the City, this report compares street conditions and demographics in Southwest Baltimore with contributing factors or variables that would affect the neighborhoods’ health and safety. The following variables were mapped: racial demographics, median household income, vacant houses, crime density by type and time of day, urban tree canopy, street conditions, street lights, and illegal dumping sites. Analysis showed that the neighborhood trends reflected issues facing Baltimore City as a whole, so the study area was expanded to provide context and draw comparisons between the City and the SWP area. Both Baltimore City and the SWP area have overlapping clusters of aging infrastructure, low income, crime, and vacancies abutting areas of wealth and security. In the end, the limiting factors on the analysis were due to incomplete data sets, which SWP recognizes and continues to build.The Southwest Partnership (SWP), Baltimor

Spurring Maritime Innovation in Annapolis

Final project for URSP708: Community Planning Studio (Fall 2016). University of Maryland, College Park.In 1987, the City of Annapolis created Maritime Zoning Regulations, delineating four zones along Annapolis’ waterfront: Maritime Conservation District, Mixed Maritime District, Maritime Industrial District, and Maritime Eastport. The districts are designed to provide incentives to the maritime industry, while offering flexibility to property owners who wish to implement higher-value uses that would add to the success of the district. With over 250 businesses and organizations related to boat servicing and supplies, boating instruction, brokerage, chartering, insurance, marinas, and other maritime needs, Annapolis remains a major center for recreational boaters along the East Coast. However, the recession of 2007-2009 caused the worst economic decline for Annapolis’ maritime industry since 1932. Maritime businesses continue to face rising land costs and rent, resulting in fewer new maritime businesses locating in the City. The Fall 2016 Community Planning Studio class was tasked with reviewing previous economic studies of Annapolis’ maritime industry and updating the studies’ recommendations with new approaches. Our Studio class examined ways to revitalize the City’s maritime industry, focusing especially on how innovation-driven economic development tools could be applied in Annapolis. The following report synthesizes our research and proposes several recommendations that the City may implement in the short-, medium-, and long-term.Anne Arundel County & Annapoli

Active Tectonics Around Almaty and along the Zailisky Alatau Rangefront

This is the author accepted manuscript. The final version is available from Wiley via http://onlinelibrary.wiley.com/doi/10.1002/2017TC004657/abstractThe Zailisky Alatau is a >250-km-long mountain range in Southern Kazakhstan. Its northern rangefront around the major city of Almaty has more than 4 km topographic relief, yet in contrast to other large mountain fronts in the Tien Shan, little is known about its Late Quaternary tectonic activity despite several destructive earthquakes in the historical record. We analyse the tectonic geomorphology of the rangefront fault using field observations, differential GPS measurements of fault scarps, historical and recent satellite imagery, metre-scale topography derived from stereo satellite images, and decimetre-scale elevation models from UAV surveys. Fault scarps ranging in height from ~2 m to >20 m in alluvial fans indicate surface rupturing earthquakes occurred along the rangefront fault since the Last Glacial Maximum (LGM). Minimum estimated magnitudes for those earthquakes are M6.8- 7. Radiocarbon dating results from charcoal layers in uplifted river terraces indicate a Holocene slip rate of ~1.2-2.2 mm/a. We find additional evidence for active tectonic deformation all along the Almaty rangefront, basinward in the Kazakh platform, and in the interior of the Zailisky mountain range. Our data indicate the seismic hazard faced by Almaty comes from a variety of sources, and we emphasize the problems related to urban growth into the loess-covered foothills and secondary earthquake effects. With our structural and geochronologic framework we present a schematic evolution of the Almaty rangefront that may be applicable to similar settings of tectonic shortening in the mountain ranges of Central Asia

Large expert-curated database for benchmarking document similarity detection in biomedical literature search

Document recommendation systems for locating relevant literature have mostly relied on methods developed a decade ago. This is largely due to the lack of a large offline gold-standard benchmark of relevant documents that cover a variety of research fields such that newly developed literature search techniques can be compared, improved and translated into practice. To overcome this bottleneck, we have established the RElevant LIterature SearcH consortium consisting of more than 1500 scientists from 84 countries, who have collectively annotated the relevance of over 180 000 PubMed-listed articles with regard to their respective seed (input) article/s. The majority of annotations were contributed by highly experienced, original authors of the seed articles. The collected data cover 76% of all unique PubMed Medical Subject Headings descriptors. No systematic biases were observed across different experience levels, research fields or time spent on annotations. More importantly, annotations of the same document pairs contributed by different scientists were highly concordant. We further show that the three representative baseline methods used to generate recommended articles for evaluation (Okapi Best Matching 25, Term Frequency-Inverse Document Frequency and PubMed Related Articles) had similar overall performances. Additionally, we found that these methods each tend to produce distinct collections of recommended articles, suggesting that a hybrid method may be required to completely capture all relevant articles. The established database server located at https://relishdb.ict.griffith.edu.au is freely available for the downloading of annotation data and the blind testing of new methods. We expect that this benchmark will be useful for stimulating the development of new powerful techniques for title and title/abstract-based search engines for relevant articles in biomedical research.Peer reviewe

Validation of ultrasonographic muscle thickness measurements as compared to the gold standard of computed tomography in dogs

Objective The objective was to quantitatively evaluate the validity of ultrasonographic (US) muscle measurements as compared to the gold standard of computed tomography (CT) in the canine. Design This was a prospective study. Population Twenty-five, client-owned dogs scheduled for CT as part of a diagnostic work-up for the management of their primary disease process were included. Materials and Methods Specific appendicular (cubital flexors and extensors, coxofemoral flexors and extensors) and axial (temporalis, supraspinatus, infraspinatus, lumbar epaxials) muscle groups were selected for quantitative measure based on CT planning and patient position. Prior to CT scan, the skin over the muscle sites was shaved and marked with a permanent marker. Patient body position was determined based on the patient’s CT plan; positioning was consistent between CT and US imaging. To ensure identical imaging position for both CT and US measurements, radio-opaque fiducial markers were placed directly over the skin marks once the dog was positioned. Quantitative measurements (cm) for both lean muscle mass (LMM) and subcutaneous adipose (SQA) were recorded. Statistical comparisons between CT and US values were done separately for each site and type. Results Muscle groups and associated SQA measured by US and CT were not statistically different based on an adjusted p-value using Bonferroni’s correction (p < 0.0031). In addition, all LMM and SQA sites had good reliability and agreement (Cronbach’s α = 0.8 − 1.0) between the two metrics, excluding the coxofemoral extensor muscle group (Cronbach’s α = 0.73232). Linear regression analysis of muscle measures indicated close agreement (slope range 0.93–1.09) and minimal bias of variation (intercept range 0.05–0.11) between CT versus US modalities, with the exception of the coxofemoral extensor muscle. Similarly, SQA CT and US measures indicated close agreement with the slope range of 0.88–1.02 and minimal bias of variation with an intercept range of 0.021–0.098, excluding the cubital flexor and extensor groups. Additionally, the R2 values for these remaining LMM and SQA sites are reported as >0.897 for LLM and >0.8289 for SQA. Conclusions Ultrasound imaging of selected appendicular and axial muscle groups in dogs can provide comparable assessment of muscle thickness to the current gold standard, CT. In consideration of both statistical reliability to CT and cage-side accessibility, the temporalis, supraspinatus, infraspinatus, and lumbar epaxial LMM sites are considered the most useful targets for US LMM assessment in the canine. Our findings support the potential utility of US as a clinical tool in veterinary medicine to assess LMM status in patients. Additional studies are indicated to develop standardized protocols of its use in a cage-side setting and to elucidate the benefit of this modality, in conjunction with nutritional interventions, to manage body LLM stores in compromised patients

Markov model of smoking cessation

Survival functions from smoking cessation interventions are described by a three-state Markov model. On quitting, smokers transit through a state of withdrawal characterized by a high rate of relapse, and then into a more secure state of long-term abstinence. The Markov model embodies the dynamic nature of the cessation/relapse process; it permits stronger inference to long-term abstinence rates, provides measures of treatment efficacy, describes the outcomes of new quit attempts, and suggests mechanisms for the survival process