INTRODUCTION Plant leaves have a major role in the photosynthetic supply of nutrients, gas exchange, the distribution of nutrients and water transport (Tsukaya, 2006). To optimise these functions in different habitats, plants need to adapt leaf positioning, size and shape (Hasson et al., 2010; Nicotra et al., 2011). An important trait of leaf shape variation is the outline of the leaf margin, w...

INTRODUCTION The aim of this study was to assess the relationship of chronological age with cervical vertebrae skeletal maturation, frontal sinus width and antegonial notch depth and a correlation, if any, among the three variables. MATERIALS AND METHODS The samples were derived from lateral cephalometric radiographs of 80 subjects (40 males, 40 females; age range: 10 to 19 years). Cervical v...

Sinus ultrasound (3 MHz ultrasound wave) is ideal for detecting maxillary and frontal sinusitis as it propagates well through bone, soft tissues and fluids but not through air. Ultrasound is sent towards the bony back wall of a sinus cavity and the reflected echoes correlate to the depth of the tissue boundaries. A healthy sinus cavity, containing only air, reflects from the anterior wall of th...

dissection of the sinus of valsalva is a rare and life-threatening event. it often occurs during percutaneous coronary intervention in the right coronary artery (rca). dissection flap usually involves the rca and the right sinus of valsalva. here we report two extremely rare cases of spontaneous dissection limited to the non-coronary sinus of valsalva, causing severe aortic valve regurgitation:...

normal 0 false false false en-us x-none x-none background:abnormalities of the sinus of valsalva are usually congenital and quite rare among other heart deficiencies. they are frequently presented with aneurysm formation and the symptoms raised because of their existence vary. when rupture of an aneurysm occurs –more often in the right chambers of the heart -severe complications as cardiogenic ...

Volume Objective: To study the size of the maxillary sinus which includes linear and volume measurements. Methods: Three dimensional computed tomography (3D CT) images of 144 Malays (288 maxillary sinuses) with no clinical evidence of craniofacial and maxillary sinus abnormalities were selected. The subjects aged from 0.4 to 30 years (mean = 13.7 ; SD = 8.53), underwent the CT scanning using Ge...

introduction lentil is one of the major legume with protein content about 28% where is cultivated in different regions of iran, especially in arid and semi-arid regions with low or variable rainfall. in these regions abiotic stresses such as heat of the around the end of growing season, drought stress in early and late within the season and salt stress alone or together have a large negative im...

UNLABELLED The exposing of dental implant into the maxillary sinus combined with membrane perforation might increase risks of implant failure and sinus complications. OBJECTIVE The purpose of this study was to investigate the effects of the dental implant penetration into the maxillary sinus cavity in different depths on osseointegration and sinus health in a dog model. MATERIAL AND METHODS...

abstract drought is the most important factor limiting crop yield word wide. osmotic adjustment (oa) and strong and deep root system result in increased cereal drought tolerance through increasing water uptake and water use efficiency. the impact of root structure and physiological traits on drought stress response was studied in three barley cultivars including yousof (drought tolerant), moroc...

We describe a leaf region detection and area calculation algorithm for estimating the growing conditions of small tomatoes. In detection, color image taken by depth camera is analyzed processing. The divided into more than one hundred quadrangle meshs, spatial coordinates vertices mesh are calculated from information obtained camera. To reduce effect measurement noise, an approximate surface ex...