ScienceDaily: Latest Science News

---

• Amplified greenhouse effect shifts north's growing seasons
• Length of DNA strands can predict life expectancy
• Mortality for acute aortic dissection near one percent per hour during initial onset
• New tool to eliminate 30-day hospital readmissions in heart failure patients
• Store donated blood for more than 3 weeks? Say NO (nitric oxide)
• Coronary artery disease: Hybrid revascularization has similar rate of adverse events as stenting, study suggests
• ECG screening for competitive athletes would not prevent sudden death, experts say
• Coronary intervention procedures: Validated pre-procedure risk score reduces bleeding complications and can shorten stays
• Are tropical forests resilient to global warming?
• Amplified greenhouse effect shaping North into South

Amplified greenhouse effect shifts north's growing seasons Posted: 10 Mar 2013 02:03 PM PDT Vegetation growth at Earth's northern latitudes increasingly resembles lusher latitudes to the south, according to a new study based on a 30-year record of land surface and newly improved satellite data sets.

Length of DNA strands can predict life expectancy Posted: 10 Mar 2013 01:42 PM PDT Can the length of strands of DNA in patients with heart disease predict their life expectancy? Researchers who studied the DNA of more that 3,500 patients with heart disease, say yes it can.

Mortality for acute aortic dissection near one percent per hour during initial onset Posted: 10 Mar 2013 01:42 PM PDT The belief among medical professionals in the 1950s that the mortality rate for type A acute aortic dissection during the initial 24 hours was one to two percent per hour appears to hold true in the contemporary era of treatment, based on a review of the large-scale IRAD registry.

New tool to eliminate 30-day hospital readmissions in heart failure patients Posted: 10 Mar 2013 01:42 PM PDT Researchers have developed an innovative tool designed to eliminate 30-day hospital readmissions for heart failure patients and improve the quality of medical care a patient receives in the hospital.

Store donated blood for more than 3 weeks? Say NO (nitric oxide) Posted: 10 Mar 2013 01:42 PM PDT Transfusion of donated blood more than three weeks old results in impaired blood vessel function, a new study of hospital patients shows. Blood banks now consider six weeks to be the maximum permitted storage time of blood for use in transfusion, but recent studies have suggested transfusing blood stored for more than a few weeks has adverse effects in patients undergoing cardiac surgery or critical care.

Coronary artery disease: Hybrid revascularization has similar rate of adverse events as stenting, study suggests Posted: 10 Mar 2013 01:42 PM PDT The first multicenter study of hybrid revascularization shows that the emerging procedure for treating coronary artery disease has a similar rate of major adverse events in the first year, compared with percutaneous intervention (stenting).

ECG screening for competitive athletes would not prevent sudden death, experts say Posted: 10 Mar 2013 01:42 PM PDT The risk of cardiovascular sudden death was very small and only about 30 percent of the incidence were due to diseases that could be reliably detected by pre-participation screening, even with 12-lead ECGs, according to new research in a US high school athlete population.

Coronary intervention procedures: Validated pre-procedure risk score reduces bleeding complications and can shorten stays Posted: 10 Mar 2013 01:41 PM PDT A clinical decision support tool helped physicians identify patients at high risk of bleeding complications prior to undergoing a coronary intervention procedure and helped guide the use of bleeding avoidance strategies, leading to less complications and a shorter hospital stay, according to a new study.

Are tropical forests resilient to global warming? Posted: 10 Mar 2013 01:38 PM PDT Tropical forests are less likely to lose biomass – plants and plant material - in response to greenhouse gas emissions over the twenty-first century than may previously have been thought, suggests a new study.

Amplified greenhouse effect shaping North into South Posted: 10 Mar 2013 01:37 PM PDT As the cover of snow and ice in the northern latitudes has diminished in recent years, the temperature over the northern land mass has increased at different rates during the four seasons, causing a reduction in temperature and vegetation seasonality in this area. In other words, the temperature and vegetation at northern latitudes increasingly resembles those found several degrees of latitude farther south as recently as 30 years ago, new research shows.

You are subscribed to email updates from ScienceDaily: Latest Science News To stop receiving these emails, you may unsubscribe now.	Email delivery powered by Google
Google Inc., 20 West Kinzie, Chicago IL USA 60610