Under optimal partitioning theory (OPT), plants preferentially allocate biomass to acquire the resource that most limits growth. Within this framework, higher root mass under low nutrients is often assumed to reflect an allocation response to build more absorptive surface. However, higher root mass also could result from increased storage of total nonstructural carbohydrates (TNC) without an in...

Objective: There are a number of medicinal plant products which has been used to treat various immunological diseases. Out of these medicinal plants, Calamus rotang has shown several medicinal properties including anti-viral, anti-diabetic, anti-inflammatory effects. Normally, the roots of C. rotang are used in various ailments to cure piles, burning sensation, cough, leprosy and bleeding disor...

Introduction: Air-powder polishing devices are increasingly used for stain and plaque removal. However, besides cleaning the tooth surface, they may increase the surface roughness of the dental tissues. This in turn may result in plaque accumulation and superficial degradation. Thus the aim of this study was to assess the influence of three different abrasive agents: Pumice, Sodium bicarbonate ...

Most epidemiological surveys of dental caries in adults have concentrated on assessing coronal carious lesions. Failure to assess and record the presence of root surface caries would understate the prevalence of caries in any population. [1] An increase in the pattern of the prevalence of root surface caries in a population is due to an increase in the age. This pattern is associated with peopl...

The aim of the present study was to assess the prevalence and factors associated with root surface caries in older individuals from Sri Lanka. A total of 600 urban subjects aged 60 years and above was selected using a two-stage cluster sampling combined with probability-proportionate-to-size technique. The data were collected by means of an interviewer-administered questionnaire and an oral exa...

Microenvironmental studies regarding plant oxygen release in a wastewater environment are important to understand the principles of constructed wetlands for wastewater treatment. pH, oxidation reduction potential (ORP), and dissolved oxygen (DO) microprofiles for the lateral and main roots of the bulrush (Scirpus validus) in a vertical flow constructed wetland fed with municipal wastewater were...