Showing posts with label technology. Show all posts
Showing posts with label technology. Show all posts

Wednesday, September 5, 2012

Researcher says nanomaterials could have 'profound' negative effect on food crops

Nanomaterials, which are created by manipulating matter on an atomic and molecular scale, may be harming the quality and yield of food crops, University of California researchers concluded in a report released in the online edition of Proceedings of the National Academy of Sciences.

The materials are being used in many consumer products,which  including shampoos, gels, hair dyes and sunscreens, which are washed into the environment. Researcher John Priester told Bobbie Mixon of the National Science Foundation that as their uses increase, the likelihood of nanomaterials contaminating food crops rises. "Conventionally treated wastewater is a primary source of normally nutrient-rich organic materials applied to agricultural soil, and farmers beneficially use this treated water and the biosolids from it as fertilizer," Mixon reports. "As nanomaterials become more prevalent, there is concern about nanomaterials buildup in soils and possible nanomaterials entry into the food supply."

There had been no previous study of the affects of nanomaterials on a soil-based crop, so researchers grew soybeans, a major global commodity, in soil containing high amounts of nanomaterials. They found that two nanomaterials -- cerium oxide powder and zinc oxide -- "could profoundly alter soil-based food crop quality and yield," Mixon reports. (Read more)

Friday, August 24, 2012

Postal discount to direct mailer OKd; newspapers going to court, say watchdog role threatened

UPDATE, Sept. 2: For a PDF of frequently asked questions about the deal, with answers from NNA, click here.

The Postal Regulatory Commission has voted 4 to 1 to support to a U.S. Postal Service plan to give a discount to a prominent direct mailer, a move that struggling newspapers say will probably reduce an important income stream for them. For background, click here.

Under the service's three-year deal with Valassis, the company will get a discount on additional pieces sent. Ruth Goldway, the commission’s chairwoman, acknowledged that newspapers were upset with the proposed deal, but said that the discount given to Valassis would not give the company an unfair advantage. “The Commission understands that both newspapers and the Postal Service are experiencing declining revenues as new technologies based on the Internet grow in popularity," she said. "Today’s decision affirms that fair competition between these two important institutions is consistent with the law.”

The Newspaper Association of America, representing most dailies, said it was “stunned” by the decision and would take it to court. (Read more)  National Newspaper Association President Reed Anfinson, publisher of the Swift County Monitor-News in Benson, Minn., said the association of weeklies and small dailies was "deeply disappointed" in the commission’s analysis.

"The commission begins with the presumption that having a federal enterprise competing head-on with the newspaper industry is a good thing, but it does not explain how any business can be on a level playing field when competing with its own government," Anfinson said. "The mailing contract with Valassis is an unfair deal in which the principal result is to drive down the advertiser’s prices and not necessarily to bring any new mail volume to the Postal Service. What the commission does not explain is why this goal is in the best interest of either newspapers or the Postal Service. Nor does it take seriously the arguments raised by many that this deal will force more newspapers out of the mail and create a net loss for the Postal Service after the deal kicks in."

Anfinson took issue with the commission's view, as he described it, that there is no "problem with the Postal Service’s draining revenues from news-gathering organizations. Somehow it seems to believe the centuries-old mailing category for periodicals created by Congress is able to equal out the harm from contracts like this one. . . . We know that in thousands of communities around this nation that newspapers remain the most vigorous watchdog of government as well as the primary source of community news."

Tuesday, June 26, 2012

Rural schools still lag in installing online technology

Rural elementary and high schools have long had to be leaders in distance learning and online education to offer some courses, but they still face challenges such as small size and budgets when trying to put technology inside the classroom. States and school districts across the country are trying several initiatives to get more technology into rural classrooms to bridge a gap in rural and urban technological access.

Some states have started programs to provide technology opportunities to rural districts, reports Sarah Butrymowicz of The Hechinger Report. In Maine, every student gets a laptop, and all school districts have to offer Advanced Placement classes in Alabama through distance learning. Some districts, though, can't afford to provide such technology, and have turned to other sources for funding. In Edison, Colo., the school district supplemented its technology programs with a $10,000 grant from the Denver-based Morgridge Family Foundation.

Only 57 percent of rural households had broadband Internet access in 2010, compared to 72 percent in urban areas, Butrymowicz reports, and Alliance for Excellent Education president, and former West Virginia governor, Bob Wise, told Butrymowicz that technology "could be rural schools' saving grace" and turn them into "renewed learning centers." (Read more)

Wednesday, June 20, 2012

Rural schools struggle to bridge the digital divide

Rural schools have long been leaders in distance-learning and online education. "To offer a full slate of courses to their students, they’ve had to be. Some states, fearing a divide between rural and urban communities, have developed statewide initiatives to provide technology to rural schools," Sarah Butrymowicz writes in The Hechinger Report. Maine, she points out, gives every student a laptop, and Alabama requires all school districts "to offer advanced placement courses through distance-learning technology, where students video-conference with teachers. (Edison School in Yoder, Colo.; Butrymowicz photo)

In 2010, only 57 percent of rural households had broadband Internet access, compared to 72 percent in urban areas, according to a November 2011 report by the U.S. Department of Commerce. Teachers in rural settings don't require students to go online to complete assignments and have to be flexible about staying after school so students can work on the computers. “The Internet can give them library resources that they might otherwise not have,” said Aimee Howley, senior associate dean in the College of Education at Ohio University, who studies technology integration in rural schools. Technology can also be used for simulations of things, she said, that “you just can’t do on site."

For schools facing shrinking budgets and consolidation, technology could be rural schools’ saving grace, said Bob Wise, a former governor of West Virginia who now serves as president of the Alliance for Excellent Education, a national advocacy organization in Washington, D.C., that has studied the challenges facing rural schools. “We’re encouraging every district to develop a systematic strategy for employing technology,” he said. “My guess is you will see a number of rural schools actually saved and renewed as learning centers.”