Laborer
hideOne of the construction trades, traditionally considered unskilled manual labor (as opposed to skilled labor). In the division of labor, laborers have all blasting, hand tools, power tools, air tools, and small heavy equipment, and act as assistants to other trades , e.g. operators or cement masons. The first century BC engineer Vitruvius writes in detail about laborer practices at that time. In his experience a good crew of laborers is just as valuable as any other aspect of construction. Other than the addition of pneumatics, laborer practices have changed little. With the advent of advanced technology and its introduction into the construction field, the laborers have been quick to include much of this technology as being laborers work.
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News tagged with workers
Feeding the clock: Cycles of feeding and fasting drive circadian gene expression in the liver
Nov 25, 2009 |
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When you eat may be just as vital to your health as what you eat, found researchers at the Salk Institute for Biological Studies. Their experiments in mice revealed that the daily waxing and waning of thousands ...
Research describes connections between Circadian and metabolic systems
Nov 17, 2009 |
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(PhysOrg.com) -- A paper by University of Notre Dame biologist Giles Duffield and a team of researchers offers new insights into a gene that plays a key role in modulating the body’s Circadian system and may ...
Wi-Fi signals can see through walls
Oct 05, 2009 |
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(PhysOrg.com) -- Researchers at the University of Utah, USA, have discovered that variations in signal strengths in wireless networks can be used to "see" movements of people on the other side of walls or ...
Public health campaign associated with major reduction in antibiotic use
Medicine & Health / Medications
Jun 02, 2009 |
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A national public health campaign in France was associated with a marked reduction of unnecessary antibiotic prescriptions, particularly in children, says new research published in this week's open-access journal PLoS Me ...
Compassion fatigue: Impact on healthcare providers of caring for the terminally ill
Medicine & Health / Psychology & Psychiatry
Apr 01, 2009 |
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Compassion fatigue in nurses, doctors and other front line cancer-care providers significantly impacts how they interact with patients, with patient families, with other healthcare workers, and with their own family, according ...
Missing or mutated 'clock' gene linked to vascular disease
Mar 25, 2009 |
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The circadian clocks that set the rhythmic motion of our bodies for wakeful days and sleepy nights can also set us up for vascular disease when broken, Medical College of Georgia researchers say.
Researchers find potential cause of heart risks for shift workers
Medicine & Health / Neuroscience
Mar 03, 2009 |
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(PhysOrg.com) -- Harvard researchers from Brigham and Women’s Hospital (BWH) and colleagues have identified the potential cause of the increased risk for cardiovascular and metabolic disease in shift workers. ...
Revisiting the anthrax attacks
Biology /
Jan 22, 2009 |
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When anthrax was sent through the U.S. Postal Service in 2001, an overwhelming majority of postal workers elected not to be inoculated with the available vaccine because of confusion and distrust, according to a University ...
How cheating ants give themselves away
Biology /
Jan 08, 2009 |
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In ant society, workers normally give up reproducing themselves to care for their queen's offspring, who are their brothers and sisters. When workers try to cheat and have their own kids in the queen's presence, their peers ...
Caste in the colony: How fate is determined between workers and queens
Biology /
Oct 21, 2008 |
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"The history of all past society has consisted in the development of class antagonisms…the exploitation of one part of society by the other". – Karl Marx and Frederick Engels, The Communist Manifesto.
Bosses exaggerate women's family-work conflict
Other Sciences / Social Sciences
Nov 18, 2009 |
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(PhysOrg.com) -- Decades into the era of two-earner households, the virtues of family-friendly policies are all but universally assumed in the corporate world. But now new research suggests serious potential pitfalls for ...
A pain in the neck: Researcher studies the effects of too much texting on college students
Nov 10, 2009 |
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The world record for fastest text message typing is held by a 21-year old college student from Utah, but his dexterous digits could mean serious injury later on. Most adults aged 18-21 prefer texting over e-mail or phone ...
Java and nighttime jobs don't mix: study
Nov 03, 2009 |
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Night-shift workers should avoid drinking coffee if they wish to improve their sleep, according to research published in the journal Sleep Medicine. A new study led by Julie Carrier, a Université de Montréal psycho ...
Cell phones become handheld tools for global development
Technology / Computer Sciences
Oct 29, 2009 |
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Mobile phones are on the verge of becoming powerful tools to collect data on many issues, ranging from global health to the environment.
Internet fuels virtual subculture for sex trade, study finds
Other Sciences / Social Sciences
Oct 21, 2009 |
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The Internet has spawned a virtual subculture of "johns" who share information electronically about prostitution, potentially making them harder to catch, according to a new study co-authored by a Michigan ...
