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Related Concept Videos

Relative Risk01:12

Relative Risk

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Relative risk (RR) is a statistical measure commonly used in epidemiology to compare the likelihood of a particular event occurring between two groups. This metric is important for evaluating the relationship between exposure to a specific risk factor and the probability of a particular outcome. It plays a crucial role in medical research, public health studies, and risk assessment. Relative risk quantifies how much more (or less) likely an event is to occur in an exposed group compared to an...
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Oxidation of Alcohols02:37

Oxidation of Alcohols

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In this lesson, the oxidation of alcohols is discussed in depth. The various reagents used for oxidation of primary and secondary alcohols are detailed, and their mechanism of action is provided.
The process of oxidation in a chemical reaction is observed in any of the three forms:
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Ethers from Alcohols: Alcohol Dehydration and Williamson Ether Synthesis02:29

Ethers from Alcohols: Alcohol Dehydration and Williamson Ether Synthesis

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Overview
Ethers can be prepared from organic compounds by various methods. Some of them are discussed below,
Preparation of Ethers by Alcohol Dehydration
In this method, in the presence of protic acids, alcohol dehydrates to produce alkenes and ethers under different conditions. For example, in the presence of sulphuric acid, dehydration of ethanol at 413 K yields ethoxyethane, whereas it yields ethene at 443 K.
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Factors Affecting the Risk of Infection01:26

Factors Affecting the Risk of Infection

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The hosts' susceptibility to infection depends on several factors. The integrity of the skin and mucous membranes helps protect the body against microbial attacks. When the skin is altered, the chance of infection, limb loss, and even death increases.
The integrity and count of the white blood cells help the body resist pathogens and fight infection. When impaired, it reduces the body's resistance to pathogens. The acidic pH levels of the gastrointestinal, genitourinary tracts, and skin...
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Protection of Alcohols02:31

Protection of Alcohols

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This lesson delves into the concept of protection and deprotection of a functional group fundamental to synthetic organic chemistry. These phenomena are explained in the context of aliphatic and aromatic alcohols.
Protection
It defines a protecting group as the masking agent to make the more reactive species inert to a given set of conditions. This concept is depicted via the illustration of liquid flow through different outlets in an assembly of pipes. The analogy helps to understand the role...
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Comparing Copy Number Variations and SNPs02:26

Comparing Copy Number Variations and SNPs

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Sequencing of the human genome has opened up several best-kept secrets of the genome. Scientists have identified thousands of genome variations that exist within a population. These variations can be a single nucleotide or a larger chromosomal variation.
Copy number variations or CNVs are the structural variations that cover more than 1kb of DNA sequence. The single nucleotide polymorphism (SNP), on the other hand, is a single nucleotide change or a point mutation that is found in more than 1%...
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Structural Design and Manufacturing of a Cruiser Class Solar Vehicle
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Alcohol-Related Risk of Driver Fatalities in Motor Vehicle Crashes: Comparing Data From 2007 and 2013-2014.

Eduardo Romano1, Pedro A Torres-Saavedra2, Hilda I Calderón Cartagena3

  • 1Pacific Institute for Research and Evaluation (PIRE), Calverton, Maryland.

Journal of Studies on Alcohol and Drugs
|August 7, 2018
PubMed
Summary

While sober driving fatal crash risk decreased, alcohol-related risks remain consistent. Older drivers (age ≥ 35) face elevated risks even at low blood alcohol concentrations (BACs).

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Area of Science:

  • Traffic Safety Research
  • Epidemiology
  • Alcohol Impairment Studies

Background:

  • Alcohol-impaired driving remains a significant public health concern, contributing to numerous fatal crashes.
  • Previous research has established a clear link between blood alcohol concentration (BAC) and crash risk.
  • Understanding trends in alcohol-related fatal crash risk is crucial for effective prevention strategies.

Purpose of the Study:

  • To update alcohol-related fatal crash relative risk estimates using 2013-2014 data.
  • To assess changes in fatal crash risk for drivers at various BACs between 2007 and 2013-2014.
  • To specifically examine risk changes among sober (BAC = .00 g/dl) and drinking (BAC > .00 g/dl) drivers.

Main Methods:

  • Utilized merged data from the Fatality Analysis Reporting System (FARS) and the National Roadside Survey (NRS).
  • Applied logistic regression analysis to estimate relative risk changes.
  • Compared crash risk estimates between 2007 and 2013-2014 datasets.

Main Results:

  • A decrease in fatal crash risk was observed for sober drivers (BAC = .00 g/dl) between 2007 and 2013-2014.
  • No comparable reduction in alcohol's overall contribution to fatal crash risk was found for drinking drivers.
  • Drivers aged 35 and older exhibited elevated fatal crash risk at low BACs (.00 g/dl < BAC < .02 g/dl) in 2013-2014 compared to 2007.

Conclusions:

  • The reduction in crash risk for sober drivers is positive but highlights persistent alcohol-related risks.
  • Consistent alcohol-related risk estimates over two decades indicate a need for enhanced drinking and driving prevention measures.
  • Targeted interventions may be necessary for older drivers experiencing increased risk at lower BAC levels.