Background: Consumers may be contaminated by various food intakes as one of the most important sources of organic and inorganic pollutants associated with agriculture. The aim of this study was to evaluate the lead (Pb), cadmium (Cd) and nitrate contaminations in watermelon and carrot samples and the associated risks to human health. Methods: In this cross sectional study, 108 samples of wat...

Phosphofructokinase (EC 2.7.1.11) from carrot roots was activated by a number of salts. Increase in salt concentration beyond the optimum generally led to a decrease in enzyme activity. Salts of the multivalent anions sulfate and phosphate were very effective activators and inhibitors. Potassium acetate and potassium succinate were also activators. Potassium tartrate and potassium citrate produ...

Transfer of methotrexate and 5-methyltryptophan resistance from carrot (Daucus carota) to tobacco (Nicotiana tabacum) was achieved by fusion between leaf mesophyll protoplasts of tobacco and irradiated cell culture protoplasts of carrot. Some of the regenerated somatic hybrids exhibited normal tobacco morphology with coexpression and independent segregation of the transferred resistance markers...

The Big Carrot: High Stake Incentives Revisited This paper provides an empirical demonstration of high stakes incentives in relation to religious practice. It shows that, when both positive (carrot) and negative (stick) incentives are available, the former are more effective than the latter. Specifically, it is shown that beliefs in heaven are much more relevant than beliefs in hell when estima...

A high level of the nucleotide sequence conservation was found for mitochondrial nad3 gene of carrot. Three silent nucleotide substitutions differentiate nad3 open reading frames from cytoplasmic male sterile and male fertile carrots. All these differences are preserved on the RNA level. Partial and silent editing also distinguished both carrots. Three of the C to U conversions were specific to...

Two lines of transgenic carrot plants producing Mycobacterium tuberculosis proteins (ESAT6 and CFP10) have been constructed. The target proteins are present in carrot storage roots at a level not less than 0.056% of the total storage protein (TSP) for ESAT6 and 0.002% of TSP for CFP10. As has been shown, oral immunization of mice induces both the cell-mediated and humoral immunities. These data...

This paper presents a case study of introducing usability practices to a small open source project called Carrot. We describe our experiences from a point of view of an active Carrot developer, who is at the same time a usability enthusiast and practitioner. We perform a critical analysis of the system’s original user interface and describe the steps we took to improve it. We also analyse the s...

Polyclonal antibodies raised against rat vesicle associated membrane protein-2 (VAMP-2) recognized, in carrot (Daucus carota) microsomes, two major polypeptides of 18 and 30 kD, respectively. A biochemical separation of intracellular membranes by a sucrose density gradient co-localized the two polypeptides as resident in light, dense microsomes, corresponding to the endoplasmic reticulum-enrich...

Introduction: Comet Wild-2 samples collected by NASA's Stardust mission are extremely complex, heterogeneous , and have experienced wide ranges of alteration during the capture process. There are two major types of track morphologies: " carrot " and " bulbous , " that reflect different structural/compositional properties of the impactors. Carrot type tracks are typically produced by compact or ...