In two experiments, 2.5-year-old children spontaneously used geometric information from 2D maps to locate objects in a 3D surface layout, without instruction or feedback. Children related maps to their corresponding layouts even though the maps differed from the layouts in size, mobility, orientation, dimensionality, and perspective, and even when they did not depict the target objects directly...

Pulmonary hernia, also known as lung herniation or intercostal herniation, is best explained as the lung parenchyma protruding beyond the confines of the thoracic wall. This rare finding can be classified as congenital or acquired. Acquired pulmonary herniations are often the complication of blunt or penetrating trauma to the chest wall. This report describes a two-year-old male who fell onto a...

©2015 8872147 Canada Inc. or its licensors CMAJ, September 8, 2015, 187(12) 901 Aprogressive limp and swelling of the heel developed in a previously healthy two-year-old boy over a two-week period. The child had been born in India and had lived in Canada since the age of seven months. There was no history of trauma. On physical examination, the patient had no fever and appeared well, but he had...

Leaf characteristics of mature 2, 3 and 4-year-old North American ginseng (Panax quinquefolius L.) leaves on fruiting and non-fruiting (NF) plants were studied. Leaflets of the 2-year-old plants had the lowest fresh and dry weight, area, volume and internal gas volume. Inflorescence removal in 3-year-old plants did not affect leaf characteristics or ginsenoside concentration but in 4-yearold pl...

Ethnopharmacological collections of plants used in traditional medical systems are a valuable but often underappreciated resource for scientific investigation. These collections contain many samples of plants currently employed in herbal and pharmaceutical medicine, and questions on stability and storage life can be examined using these historic collections as vouchers. A sample of black cohosh...

This paper reports the first occurrence of Lasiodiplodia theobromae in Brazil nut (Bertholletia excelsa). Cankers were found on branches 3-year-old plants Belém, Pará, Brazil. The symptomatic displayed reddish vascular lesions. pathogen was identified using morphological and phylogenetic analyses. Koch’s postulates fulfilled, confirming L. nut.