scholarly journals Industrial Workers Perception of Reverse Motion Warning Devices on Forklifts

2019 ◽  
Vol 63 (1) ◽  
pp. 1861-1865
Author(s):  
Yousif Abulhassan ◽  
David Wilbanks ◽  
Richard Kilpatrick ◽  
Tyler Howell
Keyword(s):  
United States ◽  
Warning System ◽  
The United States ◽  
Industrial Workers ◽  
Forward Motion ◽  
Reverse Motion ◽  
Alarm Systems ◽  
Level Of Satisfaction ◽  
Workplace Fatalities

In the United States, forklift accidents account for one in every six workplace fatalities (Bostelman and Shackleford, 2010). Backup warning devices such as tonal alarms and blue safety lights are commonly used to alert pedestrians of approaching forklifts. The purpose of this research is to identify worker’s perception on the effectiveness of two configurations of backup alarm systems: the level of nuisance perceived of these systems; and the importance of having a forward motion warning system. Results of this study indicate no statistically significant differences in the level of satisfaction between facilities using tonal backup alarms and facilities that use both tonal backup alarms along with blue safety lights. Additionally, results of this study indicate that the majority of the pedestrians and forklift operators sampled are in favor of having forward motion warning devices installed on forklifts.

The Contours of Repression

2019 ◽  
pp. 184-208
Author(s):  
David M. Struthers
Keyword(s):  
United States ◽  
Local Governments ◽  
The United States ◽  
Federal State ◽  
Industrial Workers ◽  
World War One ◽  
International Borders ◽  
The World ◽  
Sedition Act ◽  
State And Local

This chapter examines the World War One period in which the federal, state, and local governments in the United States, in addition to non-state actors, created one of the most severe eras of political repression in United States history. The Espionage Act, the Sedition Act, changes to immigration law at the federal level, and state criminal syndicalism laws served as the legal basis for repression. The Partido Liberal Mexicano (PLM), Industrial Workers of the World (IWW), and other anarchists took different paths in this era. Some faced lengthy prison sentences, some went underground, while others crossed international borders to flee repression and continue organizing. This chapter examines the repression of radical movements and organizing continuities that sustained the movement into the 1920s.

Guest Workers and Resistance to U.S. Corporate Despotism

2011 ◽  
Author(s):  
Immanuel Ness
Keyword(s):  
United States ◽  
Migrant Workers ◽  
Global Economy ◽  
The United States ◽  
Rapid Expansion ◽  
Organized Labor ◽  
Migrant Labor ◽  
Industrial Workers ◽  
Guest Workers ◽  
Labor Costs

This book thoroughly investigates the use of guest workers in the United States, the largest recipient of migrant labor in the world. The book argues that the use of migrant labor is increasing in importance and represents despotic practices calculated by key U.S. business leaders in the global economy to lower labor costs and expand profits under the guise of filling a shortage of labor for substandard or scarce skilled jobs. The book shows how worker migration and guest worker programs weaken the power of labor in both sending and receiving countries. The in-depth case studies of the rapid expansion of technology and industrial workers from India and hospitality workers from Jamaica reveal how these programs expose guest workers to employers' abuses and class tensions in their home countries while decreasing jobs for American workers and undermining U.S. organized labor. Where other studies of labor migration focus on undocumented immigrant labor and contend immigrants fill jobs that others do not want, this is the first to truly advance understanding of the role of migrant labor in the transformation of the working class in the early twenty-first century. Questioning why global capitalists must rely on migrant workers for economic sustenance, the book rejects the notion that temporary workers enthusiastically go to the United States for low-paying jobs. Instead, the book asserts the motivations for improving living standards in the United States are greatly exaggerated by the media and details the ways organized labor ought to be protecting the interests of American and guest workers in the United States.

Nutrition and Well-Being in the Late Nineteenth Century

2006 ◽  
Vol 66 (2) ◽  
pp. 313-341 ◽  
Author(s):  
TREVON D. LOGAN
Keyword(s):  
United States ◽  
Nineteenth Century ◽  
Great Britain ◽  
Well Being ◽  
The United States ◽  
Relative Price ◽  
Late Nineteenth Century ◽  
Industrial Workers ◽  
Cost Of Living ◽  
Late Nineteenth

Using the 1888 Cost of Living Survey, I estimate the demand for calories of American and British industrial workers. I find that the income and expenditure elasticities of calories for American households are significantly lower than the corresponding elasticities for British households, suggesting that American industrial workers were nutritionally better off than their British counterparts. I further find that the calorie elasticity differential between the two countries was driven by the higher wages enjoyed in the United States. Additional analysis reveals that the relative price of calories was approximately 20 percent greater in Great Britain than in the United States.

scholarly journals Earthquake Early Warning ShakeAlert 2.0: Public Rollout

2020 ◽  
Vol 91 (3) ◽  
pp. 1763-1775 ◽  
Author(s):  
Monica D. Kohler ◽  
Deborah E. Smith ◽  
Jennifer Andrews ◽  
Angela I. Chung ◽  
Renate Hartog ◽  
...  
Keyword(s):  
United States ◽  
Early Warning ◽  
Performance Metrics ◽  
Warning System ◽  
The United States ◽  
Earthquake Early Warning ◽  
Earthquake Risk ◽  
Waveform Data ◽  
Ground Shaking ◽  
Event Rates

Abstract The ShakeAlert earthquake early warning system is designed to automatically identify and characterize the initiation and rupture evolution of large earthquakes, estimate the intensity of ground shaking that will result, and deliver alerts to people and systems that may experience shaking, prior to the occurrence of shaking at their location. It is configured to issue alerts to locations within the West Coast of the United States. In 2018, ShakeAlert 2.0 went live in a regional public test in the first phase of a general public rollout. The ShakeAlert system is now providing alerts to more than 60 institutional partners in the three states of the western United States where most of the nation’s earthquake risk is concentrated: California, Oregon, and Washington. The ShakeAlert 2.0 product for public alerting is a message containing a polygon enclosing a region predicted to experience modified Mercalli intensity (MMI) threshold levels that depend on the delivery method. Wireless Emergency Alerts are delivered for M 5+ earthquakes with expected shaking of MMI≥IV. For cell phone apps, the thresholds are M 4.5+ and MMI≥III. A polygon format alert is the easiest description for selective rebroadcasting mechanisms (e.g., cell towers) and is a requirement for some mass notification systems such as the Federal Emergency Management Agency’s Integrated Public Alert and Warning System. ShakeAlert 2.0 was tested using historic waveform data consisting of 60 M 3.5+ and 25 M 5.0+ earthquakes, in addition to other anomalous waveforms such as calibration signals. For the historic event test, the average M 5+ false alert and missed event rates for ShakeAlert 2.0 are 8% and 16%. The M 3.5+ false alert and missed event rates are 10% and 36.7%. Real-time performance metrics are also presented to assess how the system behaves in regions that are well-instrumented, sparsely instrumented, and for offshore earthquakes.

Sign in / Sign up

Export Citation Format

Share Document