Equilibrium sedimentation profiles of charged colloidal suspensions

We investigate the sedimentation equilibrium of a charge stabilized colloidal suspension in the regime of low ionic strength. We analyze the asymptotic behaviour of the density profiles on the basis of a simple Poisson--Boltzmann theory and show that the effective mass we can deduce from the barometric law corresponds to the actual mass of the colloidal particles, contrary to previous studies.Comment: 13 pages, 4 figures, 1 tabl

Factors affecting rind pitting in the mandarin hybrids "fortune" and "nova". The influence of exogenous growth regulators

The commercialization of the mandarin hybrids "Fortune" and "Nova" is hindered by the development of cold-induced pitting in the fruit rind which may develop either in the orchard or during storage and transport. In the late cropping cultivar "Fortune", the pitting develops on tree during the winter months and affects mainly the exposed fruit from the north-west quadrant of the tree. The induction of symptoms under uniform conditions in the cold-room reveals differences in the susceptibility to chilling injury among the fruits and the fruit sides. The green fruit is not susceptible. Susceptibility develops as pigmentation progresses, and it is higher for the exposed than for the non-exposed (covered by the foliage) fruits. The application of GA3 at colour-break delays pigmentation and retards the development of susceptibility. The waxing of the fruit offers some protection to cold in the cold-room. However, the incidence of pitting is not related to the wax content of the fruit rind and the application of a wax coverage on tree had only a marginal protective effect. No pitting is usually found on tree in the fruit of the early ripening "Nova" cultivar, which is usually harvested before the winter chilling. The pitting develops during cold storage (8-10 C), and is reduced by GA3 application at colour break, an effect related to the delay in rind pigmentation.info:eu-repo/semantics/publishedVersio

Counterfeiting and Public Health

*** This material is copyrighted and any download is for personal use only *** The original article is published in Criminal Enforcement of Intellectual Property: A Handbook of Contemporary Research edited by Christophe Geiger © 2012 Edward Elgar

Seed quality of high protein corn lines in low input and conventional farming systems

Seed quality is a major issue for crop establishment especially in low input farming systems, where varieties often grow under more stressful conditions than in conventional farming systems. Corn (Zea mays L.) seed for organic (low input) production will eventually need to be grown organically, thus research is needed to ensure excellent seed quality in organic corn seed production. The objective of this study was to compare seed quality and composition differences between a group of high protein corn genotypes grown under low input and conventional farming systems, and to compare the relative seed quality of these genotypes to two well known inbreds, B73 or Mo17. Twenty high protein breeding genotypes were planted during two growing seasons in conventional and organic nurseries near Ames, Iowa, to produce seeds for laboratory tests. The germination, saturated cold, accelerated aging, and soak test percentages of seeds produced organically were 5 to 11% lower than for seeds produced conventionally. Protein, measured by near-infrared reflectance, was unaffected by the production location, but the oil content of seeds produced organically was significantly higher (between 0.2 and 0.3% higher) than in the conventional system. Location by genotype interactions for most tests were non significant both years, indicating that genotypes selected for high seed quality in a conventional system will also have high seed quality when grown in a low input, organic system

REVITILIZING THE ONTARIO PUBLIC EDUCATION SYSTEM FOR YOUNG ENGLISH LANGUAGE LEARNERS

Herein we argue that teachers who work to foster their ability to teach English language learners effectively need to learn about their students. Although Ontario (Canada) educators have demonstrated that English language learners’ cultural knowledge and language abilities can be mobilized within the classroom as important tools and resources for learning the systematic development of language policy at the school level is crucial for extending innovative practices and attitudes into schools across the province.  Such policy should reflect the demographic trends and recent research literature that recommends teachers must be informed and able to assess and evaluate English proficiency since this can disguise and hinder students from communicating the information they know.  Teachers, therefore, must be diligent and perceptive to accurately measure and record information that the student does know. Given this stance we present a review of the perspectives and attitudes of Ontario Elementary school teachers towards skills, abilities, and training for teaching young English language learners.  We introduce current themes and facts prevalent in the OMOE literature pertaining to effective ELL education and professional development for teachers to implement and foster English acquisition and student success

Compositions, probiotic formulations and methods to promote digestion and improve nutrition in poultry

The present disclosure relates to probiotic compositions, formulations and methods for promoting digestion and improving nutrition in birds, and probiotic compositions and formulations for increasing enzyme production and improving parameters and indications in birds

Compositions and methods of enhancing immune responses to Eimeria

Vaccines comprising TRAP polypeptides and Salmonella enteritidis vectors comprising TRAP polypeptides are provided. The vaccines may also include a CD154 polypeptide capable of binding to CD40. Also provided are methods of enhancing an immune response against Apicomplexan parasites and methods of reducing morbidity associated with infection with Apicomplexan parasites