Six species of Sargassum C. Agardh (Sargassaceae) with compressed primary branches, including: S. binderi Sonder, S. aquifolium (Turner)C. Agardh, S. oligocystum Montagne, S. swartzii (Turner)C. Agardh, S. crassifolium J. Agardh and S. cristaefolium C. A. Agardh, were identified in the Persian Gulf and Oman Sea coasts, among which S. binderi is reported as newly recorded species in Iran for the...

background: due to complex causal framework of neonatal mortality, improvement of this health indicator is quite gradual and it's decreasing trend is not as great as other health indicators such as infant and under 5 mortality rates.this study was conducted to evaluate neonatal mortality risk factors based on nested case-control design. methods:  the study population was 6900 neonates who were ...

objectives we aimed to evaluate the association between obstetric conjugate diameter (ocd) measured by ultrasonography and the type of delivery, vaginally (v) or by cesarean (c) section. conclusion the us measurement of ocd might be an accurate method that almost always remains constant during late pregnancy; it is easy to measure and might be confidentially employed for predicting c-section, b...

In this article free vibration of a Timoshenko nanobeam with variable cross-section is investigated using nonlocal elasticity theory within the scope of continuum mechanics. Small scale effects are modelled after Eringen’s nonlocal elasticity theory while the non-uniformity is presented by exponentially varying width through the beam length with constant thickness. Analytical solution is achiev...

In this article free vibration of a Timoshenko nanobeam with variable cross-section is investigated using nonlocal elasticity theory within the scope of continuum mechanics. Small scale effects are modelled after Eringen’s nonlocal elasticity theory while the non-uniformity is presented by exponentially varying width through the beam length with constant thickness. Analytical solution is achiev...