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Released: 18-Dec-2012 5:25 PM EST
Invasive Plant Species May Harm Native Grasslands by Changing Soil Composition
Allen Press Publishing

The future landscape of the American Midwest could look a lot like the past—covered in native grasslands rather than agricultural crops. This is not a return to the past, however, but a future that could depend on grasslands for biofuels, grazing systems, carbon sequestration, and other ecosystem services. A major threat to this ecosystem is an old one—weeds and their influence on the soil.

Released: 6-Dec-2012 2:30 PM EST
One-Year Study Outcomes Show Stenting in the Lower Limb Arteries Is a Reliable Treatment
Allen Press Publishing

A dozen years ago, controversial clinical trial results caused an international medical society to warn against the use of stents in leg arteries. But recent years have brought significant improvements in stent technology. One-year follow-up results of a worldwide, multicenter trial with 744 patients show that 90 percent of participants had successful procedures that did not require a repeat treatment.

Released: 5-Dec-2012 9:50 AM EST
Field Tests Seek New Control Methods for Resistant Ragweed in Cotton Crops
Allen Press Publishing

Giant ragweed lives up to its name, towering over crops and choking out surrounding plant species. Just one ragweed plant per square meter has been shown to reduce crop yields 45 to 77 percent. Now giant ragweed has evolved resistance to the herbicide glyphosate, which had been effective at controlling the weed.

Released: 4-Dec-2012 9:15 AM EST
The Next 100 Years Bring New Challenges to Rangeland Science
Allen Press Publishing

When severe droughts and overgrazing in the late 19th century brought livestock mortality, soil erosion, and loss of native forage plants to the western United States, the profession of rangeland science was born. While the original intention was to create sustainable rangelands for livestock production, today’s world has additional needs. Rangeland science must progress to accommodate increasing demand for ecosystem services in changing environments.

Released: 15-Nov-2012 11:50 AM EST
Plants’ Exposure to Light Influences Organic Weed Control Methods
Allen Press Publishing

The popularity of organic foods and products continues to climb, creating greater demand for organic agriculture. Effective natural alternatives to synthetic chemical weed and pest management are needed to meet organic standards. Essential oils, such as clove oil, offer an avenue to explore.

Released: 6-Nov-2012 11:15 AM EST
Success of Dental Implants Depends on Both Patient and Surgeon
Allen Press Publishing

Characteristics of both patient and surgeon can affect the success of dental implants. A 10-year study finds that patient risk factors such as grinding teeth or diabetes increase the odds of implant failure. It also associates higher implant failure rates with surgeons who have less than 5 years of experience.

Released: 1-Nov-2012 11:05 AM EDT
Invading Weeds Are Met by an Offense of Plant-Eating Insects
Allen Press Publishing

What is the best course of action when an invading noxious weed threatens to attack crop yields and assault grazing land? Invite a friend to dinner. In this case, the friend is a plant-eating insect—the stem-mining weevil.

Released: 31-Oct-2012 3:05 PM EDT
Plant Inventory Looks for Rare Species, Maps Out Future Conservation
Allen Press Publishing

The St. Francois Mountains, in the southeastern part of Missouri, are home to the state’s highest peaks and only igneous glades. This unique area harbors a diverse flora that is currently under threat from encroaching species. Concern for survival of the glade’s plant communities has prompted a study that will lead to mapping out a conservation management plan.

Released: 24-Oct-2012 12:00 PM EDT
Forestry’s Waste Wood Offers Habitat for Small Forest-Floor Animals
Allen Press Publishing

The wood that remains after a tree harvesting operation is often burned to reduce the hazard of fire or is removed for bioenergy production. But another option should be considered—leaving the wood for forest wildlife whose habitat has been disturbed during clear-cut forestry operations. Woody debris on the floor of the forest is essential for maintaining biodiversity and long-term ecosystem productivity.

Released: 15-Oct-2012 11:25 AM EDT
Drug-Eluting Angioplasty Treatment for Peripheral Artery Disease Shows Promise
Allen Press Publishing

Use of balloon angioplasty and placement of stents to widen clogged arteries have become standard medical procedure. Further advancing this treatment, drug-eluting devices are now delivering medication directly to the site where it can be most effective. While this technique has met with success in coronary arteries, its use in peripheral arteries is still under study.

Released: 11-Oct-2012 2:00 PM EDT
Anesthetic Combination Provides a More Rapid Recovery After Oral Surgery
Allen Press Publishing

The ideal sedative for oral surgery should make the patient comfortable during the surgery and should wear off quickly enough that the patient can leave the dental chair soon after the procedure. Finding the best plan of anesthetic treatment is essential to the success of dental procedures such as the extraction of wisdom teeth.

Released: 10-Oct-2012 3:45 PM EDT
Eliminating Sagebrush May Hurt Rather Than Help Wildlife
Allen Press Publishing

Efforts to enhance wildlife habitat by controlling vegetation could actually cause more harm than good. Wyoming big sagebrush is often manipulated to decrease its density and encourage the growth of herbaceous plants. However, this may bring about declines in the population of birds, elk, and other animals.

Released: 4-Oct-2012 3:15 PM EDT
Neurofeedback Offers Effective Treatment for Bedwetting
Allen Press Publishing

For children, nighttime bedwetting is a common problem, often requiring intervention. The use of medicine and other treatments has met with limited success. Targeting neuronal activities of the brain through neurofeedback, however, has shown promising results.

Released: 4-Oct-2012 3:00 PM EDT
Orthodontists Lack Experience, Not Motivation, for Treating Patients with Craniofacial Anomalies
Allen Press Publishing

Access to oral health care can be a challenge for people with cleft lip and palate. The greater complexity of treatment for these patients creates issues of time, cost, and scope of orthodontic practice. A study finds that while orthodontists have the motivation to treat this population, training and experience may be lacking.

Released: 4-Oct-2012 2:30 PM EDT
How to Restore Native Grasslands in the Interior Pacific Northwest
Allen Press Publishing

Weed scientists in Oregon have found that the timing of herbicide application along with reseeding of native grasses offers the best recipe for restoring native grasslands while controlling invasive weeds. Grasslands are a valuable resource for ecosystems, providing soil conservation, food and fiber production, and wildlife habitat. When threatened by invading exotic species, the quality and quantity of forage for wildlife can be reduced, fire frequencies can be altered, soil moisture and nutrients can be depleted, and the costs of land management can increase.

Released: 25-Sep-2012 10:00 AM EDT
Conservation Efforts Take Cues From Group Dynamics of Yellowstone Pronghorn
Allen Press Publishing

>The American pronghorn in the Yellowstone region have proven to be gregarious animals. Observations of group dynamics have found their interactions to be influenced by social, reproductive, and environmental factors. Pronghorn were also found to be somewhat unpredictable, making it more challenging to develop conservation strategies for this species.

Released: 14-Sep-2012 8:00 AM EDT
Surgical Techniques Compared for Reconstructing the Jaw for Dental Implants
Allen Press Publishing

For a successful dental implant, the first step for some patients is reconstructive surgery of the jaw. A bone graft to augment the upper jaw can now be achieved by several methods. To assess these methods, their risk of sinus perforation, and the best evaluation technology, researchers put these procedures to the test on 20 human cadaver specimens.

Released: 13-Sep-2012 5:35 PM EDT
Negative Cross-Resistance Helps Scientists Outmaneuver Herbicide-Resistant Weeds
Allen Press Publishing

Kochia, a weed that is rapidly becoming more abundant across southern Canadian prairies and the Great Plains of the United States, can reduce crop yields by up to 60 percent. Fighting this weed has become difficult because more than 90 percent of kochia populations are now resistant to acetolactate synthase (ALS)-inhibiting herbicides. The phenomenon of negative cross-resistance, however, may offer another path to defeating the spread of this weed.

Released: 11-Sep-2012 11:15 AM EDT
Ecological Collaborations Bring Out the Best in Land Use and Stakeholders
Allen Press Publishing

Conservationists, government agencies, and landowners often have different ideas about the best uses for land and natural resources. When these stakeholders build partnerships that achieve common goals and meet their individual needs, it is something to celebrate. To increase awareness of successful partnerships in land management and to encourage future collaborations, the Bureau of Land Management, USDA Agricultural Research Service, and the Society for Rangeland Management organized a special conference session and journal.

Released: 5-Sep-2012 1:50 PM EDT
Carbon Sequestration on U.S. Rangelands Offers Promise, but Not Profit
Allen Press Publishing

Nearly 239 million hectares of land in the United States are devoted to pastures and rangeland. Worldwide, rangelands cover about 3.6 billion hectares. Harnessing the potential for carbon sequestration from these lands could have a global impact on reducing greenhouse gas emissions.



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