background: the seeds of some medicinal plants and their compounds have long been valued for their numerous health benefits. objective:to investigate some physical and chemical properties of salvia spp. methods: some physico-chemical properties in five species of salvia seeds (consisted of s. officinalis l., s. macrosiphon l., s. hypoleuca l., s. sclarea l. and s. nemorosa l.) were measured at ...

Lack of sufficient information on conservation tillage systems leads to the dominating use of conventional tillage practice in most parts of Iran. Testing other management practices may help in decision making regarding the types of tillage systems that reduce soil deterioration. A three- years field experiment was conducted to study the effects of conventional (CT), reduced (RT) and no-till (N...

The shape, breadth, and average molecular weight of the overall distribution (MWD) largely define polymer properties. In conventional free-radical polymerization, control over this is through many competing kinetic pathways dominated by radical termination events. “Living” polymerization mechanistically minimizes these events, providing a facile route to desired Gaussian with breadth dependent ...

We make use of a specially synthesized linear high density polyethylene with a bimodal molecular weight distribution (MWD) to demonstrate that it is possible to produce a suspension of extended-chain (shish) crystals only. Such a suspension can be generated at high temperatures, above but close to the equilibrium melting temperature of the unconstrained extended-chain crystals (T(m)(0)=141.2 de...

The right femoral vessels of 80 rats were identified and dissected. External lengths and diameters of femoral arteries and femoral veins were measured using either a microscope or a video magnification system. Findings were correlated to animals’ weights. Mean length was 14.33 mm for both femoral arteries and femoral veins, mean diameter of arteries was 0.65 mm and diameter of veins was 0.81 mm...

Background: The seeds of some medicinal plants and their compounds have long been valued for their numerous health benefits. Objective:To investigate some physical and chemical properties of Salvia spp. Methods: Some physico-chemical properties in five species of Salvia seeds (consisted of S. officinalis L., S. macrosiphon L., S. hypoleuca L., S. sclarea L. and S. nemorosa L.) were measured ...

BACKGROUND The 6-min walk distance (6-MWD) is a global marker of functional capacity and prognosis in chronic obstructive pulmonary disease (COPD), but less explored in other chronic respiratory diseases. OBJECTIVE To study the role of 6-MWD in chronic hypercapnic respiratory failure (CHRF). METHODS In 424 stable patients with CHRF and non-invasive ventilation (NIV) comprising COPD (n = 197...

In this study, a mathematical model for the time evolution of molecular weight distribution (MWD) was developed. This temporal is based on well-known Ziegler–Natta polymerization mechanism and reaction kinetics by parametric solving related differential equations. However, due to generality reactions involved, can be extended other type catalysts, such as metallocenes, Phillips, etc. The superi...

N UMMULAR OR DYSREGULATIVE MICRObial eczema, which is a subtype of chronic dermatitis, is characterized by coin-shaped, sharply demarcated, erythematous lesions with serous exudates demonstrated on dermatopathologic examination. These serum exudates can be seen dermoscopically as shiny yellow clods with a diameter of 1 to 2 mm. The closest differential diagnoses, which are psoriasis and tinea c...