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Autonomous vehicle technologies and advanced driver-assistance systems have the potential to significantly improve transportation safety and efficiency, and, collectively, they may offer tremendous social, economic, and environmental benefits. As these technologies increasingly perform driving functions, they also create a shift in responsibility for driving from the driver to the vehicle itself. This motivates a new look at liability and regulatory regimes because of the increasing uncertainty about what should happen when the inevitable crash occurs and the implications for the adoption of these technologies. This research is an initial step toward understanding these issues and creating an integrated collection of policies to address them.In this work, we first evaluate how the existing liability regime would likely assign responsibility in crashes involving autonomous vehicle technologies. We identify the controlling legal principles for crashes involving these technologies and examine the implications for their further development and adoption. We anticipate that consumer education will play an important role in reducing consumer overreliance on nascent autonomous vehicle technologies and minimizing liability risk. We also discuss the possibility that the existing liability regime will slow the adoption of these socially desirable technologies because they are likely to increase liability for manufacturers while reducing liability for drivers. Finally, we discuss the possibility of federal preemption of state tort suits if the U.S. Department of Transportation (US DOT) promulgates regulations and some of the implications of eliminating state tort liability.Second, we review the existing literature on the regulatory environment for autonomous vehicle technologies.To date, there are no government regulations for these technologies, but work is being done to develop initial industry standards. It will be particularly important for autonomous vehicle technology standards—unlike standards for most other automotive technologies—to specify precise environmental conditions under which compliance must be met and tested, include performance standards and tests under a wide range of environmental conditions, and take into account how diverse populations of drivers might use the technologies.

Introduction: In the field of prosthodontics, there lies a delicate balance between the preservation of supporting structures and the restoration of physiological function while providing complete denture prostheses to completely edentulous patients. A good prosthesis requires appropriate recording of the proper maxillo-mandibular relationship, including the vertical dimension of occlusion, which is a crucial step in complete denture fabrication. The reliability of anthropometric methods to determine the vertical dimension of occlusion has been widely discussed in the literature. Aim: To evaluate the correlation of various facial measurements with the vertical dimension of occlusion in dentate subjects. Materials and Methods: This cross-sectional study was conducted in the Department of Prosthodontics at a Dental College in Ambala district of Haryana, India, from February 2021 to July 2023. A total of 100 subjects (50 females and 50 males) within the age range of 20-35 years were selected. Five facial parameters were selected to correlate with the vertical dimension of occlusion: the distance from glabella to subnasion, the distance from the outer canthus of one eye to the inner canthus of the other eye, the distance from the outer canthus to the rima oris, the distance from the outer canthus to the External Auditory Meatus (EAM) on the left side of the face, and the Interpupillary Distance (IPD). Facial measurements were recorded using a digital vernier calliper, while IPD was recorded using a PD ruler. Each measurement was made three times and recorded by a single operator. Once recorded, all the measurements were tabulated and subjected to statistical analysis using the Pearson's correlation coefficient test. Regression analysis was also conducted to formulate a regression equation for determining the vertical dimension of occlusion. Results: The mean Vertical Dimension of Occlusion (VDO) for males was 59.29±6.48 mm, and for females, it was 52.34±5.92 mm. The results showed a positive and significant (p-value<0.05) correlation between the vertical dimension of occlusion and facial measurements such as glabella to subnasion (p-value for males: 0.001, p-value for females: <0.001), outer canthus to inner canthus (p-value for males: 0.01, p-value for females: <0.001), outer canthus to rima oris (p-value for males: <0.001, p-value for females: <0.001), and outer canthus to EAM (p-value for males: 0.007, p-value for females: 0.001) in both males and females. However, there was no significant correlation between IPD and VDO (p-value for males: 0.296, p-value for females: 0.66) in both genders. Conclusion: It can be concluded that facial measurements could be taken into consideration for determining the vertical dimension of occlusion in completely edentulous patients in conjunction with other reliable methods. [ABSTRACT FROM AUTHOR]