High correlations between plant clonality and ecosystem service functions after management in a chronosequence of evergreen conifer plantations.

Introduction: Climate change and mono-afforestation or mono-reforestation have continuously caused a decline in biodiversity and ecosystem services on forest plantations. Key plant functional traits in forests or plantations may affect ecosystem functions after forest management practices. Plant clonality, a key functional trait, frequently links to biodiversity and ecosystem functions and affects the biodiversity-ecosystem functioning relationship.

Cross-Linking the Surface of Cured Polydimethylsiloxane via Hyperthemal Hydrogen Projectile Bombardment.

Cross-linking of polydimethylsiloxane (PDMS) is increasingly important with recent focus on its top surface stiffness. In this paper, we demonstrate that hyperthermal hydrogen projectile bombardment, a surface sensitive cross-linking technology, is superior in enhancing the mechanical properties of a cured PDMS surface without significantly degrading its hydrophobicity. Both water contact angle measurements and time-of-flight secondary ion mass spectrometry are used to investigate the variations in surface chemistry and structure upon cross-linking.

[Intestinal obstruction caused by gallstone: report of 5 cases and review of the literature].

Objective: To explore clinical features, diagnostic methods and treatment of gallstone ileus.

Methods: Clinical data of 5 patients with gallstone ileus were analyzed retrospectively. Pertinent literature from China between 2000 and 2009 were reviewed.