The impact of image test bank construction on radiographic interpretation outcomes: A comparison study

Radiography ◽  
2016 ◽  
Vol 22 (2) ◽  
pp. 166-170 ◽  
Author(s):  
M. Hardy ◽  
K. Flintham ◽  
B. Snaith ◽  
E.F. Lewis
Keyword(s):  
Comparison Study ◽  
Image Test ◽  
Radiographic Interpretation ◽  
The Impact

scholarly journals Pilot testing an intervention to educate and promote nutritious choices at food pantries

2021 ◽  
Author(s):  
Sarah L. McKee ◽  
Eminet Abebe Gurganus ◽  
Abiodun T. Atoloye ◽  
Ran Xu ◽  
Katie Martin ◽  
...  
Keyword(s):  
Food Insecurity ◽  
Diet Quality ◽  
Food System ◽  
Saturated Fat ◽  
Comparison Study ◽  
Regression Analyses ◽  
Food Pantry ◽  
Food Pantries ◽  
Client Choice ◽  
The Impact

Abstract Aim This study aimed to assess the impact of the Supporting Wellness at Pantries (SWAP) system on client food selections at a food pantry. Subject and methods In a pre–post comparison study design, a client-choice food pantry implemented SWAP by reorganizing its inventory to promote healthy options. Each product was ranked as “choose often” (green), “sometimes” (yellow), or “rarely” (red) based on saturated fat, sodium, and sugar. Signage was added to indicate each item’s SWAP rank and healthier foods were placed at eye level. Client food baskets were assessed at time 1 (n = 121) and time 2 (n = 101). The proportions of green and red foods selected were compared using regression analyses. Results The regression analyses showed that the proportion of green foods selected by clients increased by 11% (p < 0.001) and the proportion of red foods selected decreased by 7% (p < 0.001) after SWAP was implemented (n = 222). Conclusions SWAP has the potential to positively shift client choices among the items available in a food pantry setting. SWAP is one component of a suite of changes to the charitable food system that have the potential to alleviate food insecurity, improve diet quality, and assist clients in managing diet-related diseases.

Map Width Enhancement Technique for a Turbocharger Compressor

2013 ◽  
Vol 136 (6) ◽  
Author(s):  
Subenuka Sivagnanasundaram ◽  
Stephen Spence ◽  
Juliana Early
Keyword(s):  
Performance Improvement ◽  
Peak Pressure ◽  
Pressure Ratio ◽  
Comparison Study ◽  
Heavy Duty ◽  
Recirculating Flow ◽  
Heavy Duty Diesel ◽  
And Performance ◽  
The Stability ◽  
The Impact

This paper presents an investigation of map width enhancement and the performance improvement of a turbocharger compressor using a series of static vanes in the annular cavity of a classical bleed slot system. The investigation has been carried out using both experimental and numerical analysis. The compressor stage used for this study is from a turbocharger unit used in heavy duty diesel engines of approximately 300 kW. Two types of vanes were designed and added to the annular cavity of the baseline classical bleed slot system. The purpose of the annular cavity vane technique is to remove some of the swirl that can be carried through the bleed slot system, which would influence the pressure ratio. In addition to this, the series of cavity vanes provides a better guidance to the slot recirculating flow before it mixes with the impeller main inlet flow. Better guidance of the flow improves the mixing at the inducer inlet in the circumferential direction. As a consequence, the stability of the compressor is improved at lower flow rates and a wider map can be achieved. The impact of two cavity vane designs on the map width and performance of the compressor was highlighted through a detailed analysis of the impeller flow field. The numerical and experimental study revealed that an effective vane design can improve the map width and pressure ratio characteristic without an efficiency penalty compared to the classical bleed slot system without vanes. The comparison study between the cavity vane and noncavity vane configurations presented in this paper showed that the map width was improved by 14.3% due to a significant reduction in surge flow and the peak pressure ratio was improved by 2.25% with the addition of a series of cavity vanes in the annular cavity of the bleed slot system.

The impact of preoperative opioid use on outcomes after elective colorectal surgery: A propensity-matched comparison study

Surgery ◽  
2019 ◽  
Vol 166 (4) ◽  
pp. 632-638 ◽  
Author(s):  
Alexander R. Cortez ◽  
Christopher M. Freeman ◽  
Nick C. Levinsky ◽  
Al-Faraaz Kassam ◽  
Koffi Wima ◽  
...  
Keyword(s):  
Colorectal Surgery ◽  
Comparison Study ◽  
Opioid Use ◽  
Elective Colorectal Surgery ◽  
Matched Comparison ◽  
The Impact

scholarly journals Evaluating the impact of COVID-19: A cohort comparison study of drug use and risky sexual behavior among sexual minority men in the U.S.A.

2020 ◽  
Vol 216 ◽  
pp. 108260 ◽  
Author(s):  
Tyrel J. Starks ◽  
S. Scott Jones ◽  
Daniel Sauermilch ◽  
Matthew Benedict ◽  
Trinae Adebayo ◽  
...  
Keyword(s):  
Sexual Behavior ◽  
Drug Use ◽  
Sexual Minority ◽  
Risky Sexual Behavior ◽  
Comparison Study ◽  
Sexual Minority Men ◽  
Cohort Comparison ◽  
Minority Men ◽  
The Impact

Impact performance of innovative corrugated polystyrene foam for bicycle helmets

2020 ◽  
pp. 0021955X2096521
Author(s):  
Somen K Bhudolia ◽  
Goram Gohel ◽  
Kah Fai Leong
Keyword(s):  
Energy Absorption ◽  
High Speed ◽  
Head Injuries ◽  
Expanded Polystyrene ◽  
The Novel ◽  
Comparison Study ◽  
Impact Performance ◽  
Bicycle Helmets ◽  
Weight Property ◽  
The Impact

Expanded Polystyrene (EPS) is a common material used to manufacture the inner foam liner of a bicycle helmet due to its outstanding energy absorption characteristics and light-weight property. The current research presents a novel corrugated expanded polystyrene (EPS) foam design concept which is used to enhance the impact dissipation of bicycle helmets from the safety standpoint to reduce head injuries and make them lighter. The baseline comparison study under impact for different foam configurations is compared with a conventional EPS foam sample without corrugation. Corrugated foam designs under current investigation are 12.5–20% lighter and provide up to 10% higher energy absorption. The details of the novel manufacturing concept, CPSC 1203 helmet impact tests, high-speed camera study to understand the differences in the failure mechanisms are deliberated in this paper.

scholarly journals Community health workers impact on maternal and child health outcomes in rural South Africa – a non-randomized two-group comparison study

2020 ◽  
Vol 20 (1) ◽  
Author(s):  
Karl W. le Roux ◽  
Ellen Almirol ◽  
Panteha Hayati Rezvan ◽  
Ingrid M. le Roux ◽  
Nokwanele Mbewu ◽  
...  
Keyword(s):  
Child Health ◽  
Health Outcomes ◽  
Maternal And Child Health ◽  
Home Visiting ◽  
Health Workers ◽  
Group Comparison ◽  
Comparison Study ◽  
Child Health Outcomes ◽  
The Impact ◽  
And Child Health

Abstract Background Home visits by paraprofessional community health workers (CHWs) has been shown to improve maternal and child health outcomes in research studies in many countries. Yet, when these are scaled or replicated, efficacy disappears. An effective CHW home visiting program in peri-urban Cape Town found maternal and child health benefits over the 5 years point but this study examines if these benefits occur in deeply rural communities. Methods A non-randomized, two-group comparison study evaluated the impact of CHW in the rural Eastern Cape from August 2014 to May 2017, with 1310 mother-infant pairs recruited in pregnancy and 89% were reassessed at 6 months post-birth. Results Home visiting had limited, but important effects on child health, maternal wellbeing and health behaviors. Mothers reported fewer depressive symptoms, attended more antenatal visits and had better baby-feeding practices. Intervention mothers were significantly more likely to exclusively breastfeed for 6 months (OR: 1.8; 95% CI: 1.1, 2.9), had lower odds of mixing formula with baby porridge (regarded as detrimental) (OR: 0.4; 95% CI: 0.2, 0.8) and were less likely to consult traditional healers. Mothers living with HIV were more adherent with co-trimoxazole prophylaxis (p < 0.01). Intervention-group children were significantly less likely to be wasted (OR: 0.5; 95% CI 0.3–0.9) and had significantly fewer symptoms of common childhood illnesses in the preceding two weeks (OR: 0.8; 95% CI: 0.7,0.9). Conclusion The impact of CHWs in a rural area was less pronounced than in peri-urban areas. CHWs are likely to need enhanced support and supervision in the challenging rural context.

Display of Search Results in Google-based Yahoo! vs. LCC&K Interfaces: A Comparison Study

10.28945/2623 ◽  
2003 ◽  
Author(s):  
Offer Drori
Keyword(s):  
Search Time ◽  
Distinct Advantage ◽  
Comparison Study ◽  
Current Experiment ◽  
Additional Information ◽  
Search Results ◽  
Textual Databases ◽  
Hebrew University ◽  
The Impact ◽  
Previous Series

Search results retrieved from textual databases may be presented in several ways. In commercial search engines, the most common method is the presentation of a list that includes the titles of the retrieved documents, and, sometimes, the first few lines of each document and additional information. A series of studies at the Hebrew University examined the impact of different textual elements presented to the user on the effectiveness of the search. In the current experiment, presentation of search results in the Google-based Yahoo! interface was compared to presentation of search results in the LCC&K (Line in Context, Categories, & Keywords) interface that was developed consequent to the findings of a previous series of studies. The findings indicate a distinct advantage to the LCC&K interface in terms of objective components (such as duration of search time), and subjective components (such as the user’s increasing sense of confidence as the search progressed that it would yield the correct answer, the user’s sense of comfort, the extent to which the interface can mislead the user, etc.). This paper will address the experiment process and its findings.

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