Trend of soil salinization in Africa and implications for agro-chemical use in semi-arid croplands.

Soil salinization is a gradual degradation process that begins as a minor problem and grows to become a significant economic loss if no control action is taken. It progressively alters the soil environment which eventually negatively affects plants and organism that were not originally adapted for saline conditions. Soil salinization arises from diverse sources such as side-effects of long-term use of agro-chemicals, saline parent rocks, periodic inundation of soil with saline water, etc.

Rhizobacteria Communities of Phytoremediation Plant Species in Petroleum Hydrocarbon Contaminated Soil of the Sudd Ecosystem, South Sudan.

The Sudd wetland is one of the oil-rich regions of South Sudan where environmental pollution resulting from oil extraction activities has been unprecedented. Although phytoremediation is the most feasible technique, its efficacy reduces at high TPH concentration in soil. This has made rhizoremediation the most preferred approach.

"Guidewire Intravenous Catheter Systems Do Not Improve First-Pass Success Rates for Peripheral Access When Placed By Army Combat Medics (68W) in a Pre-hospital Setting." A Prospective, Randomized Controlled Trial with Crossover Study Design.

Introduction: This study was completed to determine if guidewire catheters improve first-pass success and time of placement for peripheral intravenous access. In the military, 21% of casualties from the battlefield arrive to a medical facility in hemorrhagic shock. The importance of successful and timely intravenous placement is crucial in the initial steps of preventing this condition.

Effect of bike lane infrastructure improvements on ridership in one New Orleans neighborhood.

Background: Incorporating cycling into daily life is one way to increase physical activity.

Purpose: This study examined the impact of building new bike lanes in New Orleans to determine whether more people were cycling on the street and with the flow of traffic after bike lanes were built.

Methods: Through direct observation of one intervention and two adjacent streets, observers counted cyclists riding on the street and sidewalk, with and against traffic, before and after installation of the lanes.