The exploration of phenotypic spaces of large sets of plant species has considerably increased our understanding of diversification processes in the plant kingdom. Nevertheless, such advances have predominantly relied on interspecific comparisons that hold several limitations. Here, we grew in the field a unique set of 179 inbred lines of durum wheat, Triticum turgidum spp.
View Article and Find Full Text PDFPlant ecologists and molecular biologists have long considered the hypothesis of a trade-off between plant growth and defence separately. In particular, how genes thought to control the growth-defence trade-off at the molecular level relate to trait-based frameworks in functional ecology, such as the slow-fast plant economics spectrum, is unknown. We grew 49 phenotypically diverse rice genotypes in pots under optimal conditions and measured growth-related functional traits and the constitutive expression of 11 genes involved in plant defence.
View Article and Find Full Text PDFEstimating plasticity of leaf silicon (Si) in response to abiotic and biotic factors underpins our comprehension of plant defences and stress resistance in natural and agroecosystems. However, how nitrogen (N) addition and intraspecific plant-plant interactions affect Si concentration remains unclear.We grew 19 durum wheat genotypes ( ssp.
View Article and Find Full Text PDFTrees are a traditional component of urban spaces where they provide ecosystem services critical to urban wellbeing. In the Tropics, urban trees' seed origins have rarely been characterized. Yet, understanding the social dynamics linked to tree planting is critical given their influence on the distribution of associated genetic diversity.
View Article and Find Full Text PDFPurpose: Although lumbar spondylolysis is encountered in general population with an incidence estimated to be 3-10%, limited information is available for children. The aim of the study is to determine the prevalence of spondylolysis according to associated vertebral bony malformation and spinopelvic parameters in children under eight requiring CT evaluation for unrelated lumbar conditions.
Methods: Seven hundred and seventeen abdominal and pelvic multi-detector CT scans were obtained in patients under 8 years of age were reviewed.
Context: Spinal muscular atrophy type 1, an autosomal recessive motor neuron disease, is a leading genetic cause of death in infancy and early childhood.
Objective: To determine whether the early initiation of noninvasive respiratory interventions is associated with longer survival.
Design: Single-institution retrospective cohort study identified children with spinal muscular atrophy type 1 from January 1, 2002 to May 1, 2009 who were followed for 2.
Objective: The objective of the study was to report the toxicity of phosphine gas after a residential fumigation that resulted in fatal poisoning of a 15-month-old toddler and her 4-year-old sibling.
Methods: This is a case report and a review of literature.
Results: A family of 6 members was exposed to phosphine gas after their yard was treated with aluminum phosphide for a rodent infestation.
Alagille syndrome is a dominantly inherited multisystem disorder involving multiple organs including the liver, heart, eyes, face, and skeleton. Congenital heart defects, the majority of which are right-sided, contribute significantly to the mortality of these patients. We report a patient with Alagille syndrome who presented with mitral valve regurgitation requiring valvuloplasty and subsequent mitral valve replacement.
View Article and Find Full Text PDFAutomatic exposure control (AEC) systems have been developed by computed tomography (CT) manufacturers to improve the consistency of image quality among patients and to control the absorbed dose. Since a multichannel helical CT scan may easily increase individual radiation doses, this technical improvement is of special interest in children who are particularly sensitive to ionizing radiation, but little information is currently available regarding the precise performance of these systems on small patients. Our objective was to assess an AEC system on pediatric dose phantoms by studying the impact of phantom transmission and acquisition parameters on tube current modulation, on the resulting absorbed dose and on image quality.
View Article and Find Full Text PDFThe management of congenital cardiovascular malformations is a diagnostic challenge. It requires accurate assessment of the intra- and extra-cardiac malformations. Three-dimensional imaging by the multislice CT scanner is now a routine investigation for congenital heart disease, complementary to echocardiography, and, increasingly, an alternative to conventional angiography.
View Article and Find Full Text PDFTasks that are easily interrupted under intermittent viewing conditions may be less distracting while driving because they allow drivers greater control over task sharing decisions. This paper investigates the reliability and sensitivity of the occlusion paradigm as a potential means of measuring task interruptability and distraction. Twenty-four participants, between the ages of 21 and 34, completed two separate experimental sessions.
View Article and Find Full Text PDFThe follow-up of 283 gestations recorded by the Midi-Pyrénées Pharmacovigilance Centre concerned 544 medications, 17 solvents and 12 illicit drugs. Pregnancy outcomes were live births for 74.2 per cent of the women and voluntary (14.
View Article and Find Full Text PDFThe aim of this study was to develop a high-performance liquid chromatographic (HPLC) assay for the determination of moxifloxacin in human plasma and lung tissue. The assay was based on HPLC with a Supelcosil ABZ+ column and ultraviolet detection set at a wavelength of 296 nm. The extraction procedure was characterized by a fully automated liquid-solid extraction using an OASIS column for the solid phase.
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