Publications by authors named "Sandra Stone"

Although there has been a large body of research conducted on girl and young women victims of commercial sexual exploitation, boy and young men victims do not receive the same attention. The scant research that exists demonstrates mixed findings on the prevalence of boys and young men as victims of commercial sexual exploitation. For example, some studies find they are not as likely to be victims and others find they are victimized equally, or in some cases, potentially even more so than girls and young women, depending on location.

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Unlabelled: This study examined the relationships between three life domains-physical health, risky/deviant lifestyle, and psychosocial adjustment-and traditional bullying and cyberbullying victimization among youths in 23 countries.

Methods: We first estimated logistic regression models that examined the relationships between indicators of physical health, risky/deviant lifestyle, and psychosocial adjustment using 23 distinct national samples. This analysis also allowed us to observe patterns of similarity and dissimilarity across countries regarding the correlates of for traditional bullying and cyberbullying victimization.

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Seeds are complex structures that consist of the embryo, endosperm, and seed-coat regions that are of different ontogenetic origins, and each region can be further divided into morphologically distinct subregions. Despite the importance of seeds for food, fiber, and fuel globally, little is known of the cellular processes that characterize each subregion or how these processes are integrated to permit the coordinated development of the seed. We profiled gene activity genome-wide in every organ, tissue, and cell type of Arabidopsis seeds from fertilization through maturity.

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Objectives: The NS-Plus automated analyzer and fecal immunochemical testing (FIT) testing system (Alfresa Pharma) was evaluated for use in Newfoundland and Labrador's provincial colorectal cancer (CRC) screening program.

Design And Methods: Various method performance characteristics were evaluated including the sample stability. The sensitivity for detecting neoplastic lesions was evaluated in 249 patients scheduled for colonoscopy.

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Cyclolinopeptides are a group of naturally occurring hydrophobic cyclic peptides found in flaxseed and flax oil that have immunosuppressive activity. This study describes the measurement of flaxseed cyclolinopeptide concentrations using an internal standard HPLC method. In addition, the concentration of cyclolinopeptides in the seed of Canadian flax cultivars grown at two locations over two years is reported.

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The shoot and root apical meristems (SAM and RAM) formed during embryogenesis are crucial for postembryonic plant development. We report the identification of POPCORN (PCN), a gene required for embryo development and meristem organization in Arabidopsis thaliana. Map-based cloning revealed that PCN encodes a WD-40 protein expressed both during embryo development and postembryonically in the SAM and RAM.

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Background: Flax, Linum usitatissimum L., is an important crop whose seed oil and stem fiber have multiple industrial applications. Flax seeds are also well-known for their nutritional attributes, viz.

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Acyl CoA:diacylglycerol acyltransferase (DGAT) is an integral membrane protein of the endoplasmic reticulum that catalyzes the synthesis of triacylglycerols. Two DGAT enzymes have been identified (DGAT1 and DGAT2) with unique roles in lipid metabolism. DGAT1 is a multifunctional acyltransferase capable of synthesizing diacylglycerol, retinyl, and wax esters in addition to triacylglycerol.

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LEAFY COTYLEDON2 (LEC2) is a central regulator of embryogenesis sufficient to induce somatic cells to form embryos when expressed ectopically. Here, we analyze the cellular processes induced by LEC2, a B3 domain transcription factor, that may underlie its ability to promote somatic embryogenesis. We show auxin-responsive genes are induced after LEC2 activation in seedlings.

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The B3 domain protein LEAFY COTYLEDON2 (LEC2) is required for several aspects of embryogenesis, including the maturation phase, and is sufficient to induce somatic embryo development in vegetative cells. Here, we demonstrate that LEC2 directly controls a transcriptional program involved in the maturation phase of seed development. Induction of LEC2 activity in seedlings causes rapid accumulation of RNAs normally present primarily during the maturation phase.

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