- [Comparative characteristics of injuries to individual body parts of the driver and passengers inside the passenger compartment of a moving vehicle in a traffic accident]. [Journal Article]
- SMSud Med Ekspert 2019; 62(3):12-16
- The purpose of this study was to investigate the general nature of injuries sustained in a moving passenger car during an accident. The study investigated the nature of injuries in drivers (99 cases)…
The purpose of this study was to investigate the general nature of injuries sustained in a moving passenger car during an accident. The study investigated the nature of injuries in drivers (99 cases) and passengers in the front seat (64), rear right seat (15), rear middle seat (29) and rear left seat (22) who died in an accident due to frontal collision with an obstacle. The general characteristics of the resulting damage were determined with regard to their type, quantity and localization. Drivers were found to have predominantly left-sided injuries to the head and chest, as well as right-sided abdominal and pelvic injuries, frequent neck injuries, smaller limb and permanent foot injuries. The injuries sustained by front seat passengers were characterized mainly by right-sided localization of head and neck injuries, maximum left-sided injury of the upper and lower limbs, and an absence of injuries to the feet. Passengers in the rear right seat were predominantly characterized by right-sided localization of injuries to the head, chest, stomach, pelvis and limbs, an absence of injuries to the feet and a relatively high frequency of damage to the internal organs of the thoracic and abdominal cavities. Passengers in the rear middle seat were characterized by uniform distribution of injuries on the left and right sides of the body, a relatively high frequency of injuries to the head, upper limbs, chest, abdomen and pelvis, a relatively low frequency lower limb injuries and an absence of injuries to the feet. Passengers in the left-hand rear seat were characterized by maximum left-sided localization of injuries to the head, chest and left extremities and minimum traumatization of the internal organs of the thoracic and abdominal cavities.
- The Effect of the Carbon Fiber Content on the Flexural Strength of Polymer Concrete Testing Samples and the Comparison of Polymer Concrete and U-Shaped Steel Profile Damping. [Journal Article]
- MMaterials (Basel) 2019 Jun 14; 12(12)
- This article explores the effect of carbon fiber content on the flexural strength of polymer concrete testing samples and compares the damping of polymer concrete and U-shaped steel profiles. The exp…
This article explores the effect of carbon fiber content on the flexural strength of polymer concrete testing samples and compares the damping of polymer concrete and U-shaped steel profiles. The experiments involved and described herein consisted of flexural strength testing according to STN EN 12 390-5 Testing of Hardened Concrete, Part 5: Flexural Strength of Test Samples. The test results were evaluated graphically and by calculations and were further processed in various programs. The experimental results indicated that the highest flexural strength value was obtained by the test samples containing 12% of carbon fibers while culminating at 17.9 MPa. The results showed that the highest increase of flexural strength was caused by the addition of 3% of carbon fibers to the mixture, which increased the flexural strength by 4.2 MPa, or 26.75%. The results indicated that, based on the shape of the regression curve, flexural strength culminated at 13% carbon fiber content. The experimental results demonstrated that the tested polymer concrete test sample had a 6.87 times higher attenuation coefficient than the U-shaped steel profile. The results showed that the polymer concrete test sample No. 4 reduced vibration acceleration deviation by 93.5% in 0.005 sec and the U-shaped steel profile by 32.9%.
- Evaluation of interventions to make top tether hardware more visible during child restraint system (CRS) installations. [Journal Article]
- TITraffic Inj Prev 2019 Jun 13; :1-6
- CONCLUSIONS: Conditions in this study including tether color, tether labeling, storage location, and vehicle labeling did not significantly affect tether attachment rates. High rates of tether misuse and nonuse warrant further exploration to find effective solutions to this usability problem.
- Effect of Rowing Ergometer Compliance on Biomechanical and Physiological Indicators during Simulated 2,000-metre Race. [Journal Article]
- JSJ Sports Sci Med 2019; 18(2):264-270
- This study compared biomechanical characteristics and physiological responses during rowing on three devices: (i) stable ergometer (STE), (ii) transversally compliant ergometer (TCE) and (iii) fronta…
This study compared biomechanical characteristics and physiological responses during rowing on three devices: (i) stable ergometer (STE), (ii) transversally compliant ergometer (TCE) and (iii) frontally compliant ergometer (FCE). Eleven young competitive rowers completed a 2000 meter simulated race under each of the ergometer conditions in a randomized order. Stroke rate, average force, power output, velocity and amplitude of the handle and stretcher or seat, heart rate and blood lactate were measured at 500 m intervals. Force and power at the stretcher were significantly lower (p < 0.03) for TCE, while stroke rate and velocities of the handle and the seat were higher (p < 0.01). No significant differences were observed between STE and FCE in biomechanical parameters. The lowest rowing performance was observed in FCE (p = 0.007), and was accompanied with the highest average heart rate (p = 0.031). Our findings indicate that in TCE, rowers modified their technique, but were able to maintain physiological strain and performance. In contrast, FCE had no effect on rowing biomechanics, but decreased rowing performance and increased physiological strain. It seems plausible that transversal, but not frontal compliance, elicited a biomechanical technique that might reduce the discrepancy between a rowing ergometer and on-water rowing.
- Whole body vibration exposures of roller compactors: Characteristics and effect of waste rubber in damping the vibration. [Journal Article]
- IJInt J Occup Saf Ergon 2019 Jun 12; :1-28
- Whole body vibration (WBV) exposures of twelve roller compactor operators were measured to investigate the characteristics of WBV vibration transmitted to roller compactor operators and to assess the…
Whole body vibration (WBV) exposures of twelve roller compactor operators were measured to investigate the characteristics of WBV vibration transmitted to roller compactor operators and to assess their level of exposure to WBV. All the subjects were in the seated position and vibration transmission at the interface between the operator and seat was measured. Operators showed a dominant WBV transmission in vertical direction. Eight-hour exposure (A (8)) and vibration dose value (VDV) were used to assess operators' exposure to WBV. 75% of operators were found with high or moderate potential of health risk defined in health guidance caution zone (HGCZ) speciﬁed in ISO 2631-1:1997. A rubber mat produced with waste rubber sludge was used to investigate the effect of damping vibration transmitted to operator. Rubber mat damped the WBV transmission in all three directions; 18% in vertical, 5% in lateral and 2% in fore and aft direction.
- Effectiveness of a collaborative, student-run campaign to increase safety belt use among adolescents. [Journal Article]
- IPInj Prev 2019 Jun 10
- CONCLUSIONS: This collaborative campaign resulted in a modest, short-term increase in seat belt use among high school students. Future studies should evaluate which interventions are most effective and how short-term increases in seat belt use can be sustained.
- Redo Aortic Valve Replacement Following Bio-Bentall's Procedure. [Journal Article]
- HLHeart Lung Circ 2019 May 09
- CONCLUSIONS: The author presents a simple and reproducible technique to replace a degenerated bioprosthetic aortic valve while preserving the previous aortic root replacement.
- A bivariate probit analysis of child passenger's sitting behaviour and restraint use in motor vehicle. [Journal Article]
- AAAccid Anal Prev 2019 Jun 04; 129:225-229
- Motor vehicle injuries are a leading cause of death among children worldwide, though many of these deaths are preventable. Buckling young children in age- and size-appropriate car seats, booster seat…
Motor vehicle injuries are a leading cause of death among children worldwide, though many of these deaths are preventable. Buckling young children in age- and size-appropriate car seats, booster seats, or seat belts and also seating them in appropriate position can lead to a significant reduction of serious and fatal injuries. This study investigated sitting behaviour and restraint use among child passengers through cross-sectional observational surveys conducted in Kumasi, Ghana. A bivariate probit model was developed for simultaneous determination of the contributing factors influencing child passenger's sitting behaviour and restraint use. The results showed that 26% of the child passengers observed were occupying the front seat and the prevalence rate of restraint use was 4.5%. The developed bivariate probit model clearly highlights the existence of interrelationship between child passenger's sitting position and restraint use. The key factors simultaneously influencing child passenger's sitting position and restraint use include vehicle type, driver's gender, driver's belt use, child's age, and the presence of other child or adult passenger. Furthermore, time of day and day of week also influence child passenger sitting behaviour but not their restraint use. These findings provide insight for better understanding of child transporting practices and the contributing factors influencing their sitting behaviour and restraint use. The findings also highlight the need for policy makers to design effective countermeasures to promote rear sitting and restraint use among child passengers.
- Fatally injured drivers in Norway 2005-2015-Trends in substance use and crash characteristics. [Journal Article]
- TITraffic Inj Prev 2019 Jun 06; :1-7
- CONCLUSIONS: The observed changes toward more safety installations in cars and motorcycles and lower prevalence of driver-related risk factors like alcohol use, speeding, and nonuse of seat belts/helmets among fatally injured drivers/riders may have contributed to the decrease in road traffic deaths.
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- On The Hot Seat: A Rare Cause of Rectal Pain. [Journal Article]
- GGastroenterology 2019 May 31