background : considering the disadvantages of chemical insecticides, we aimed to evaluate vorticella parasites for control of mosquito larvae of anopheles stephensi and aedes aegypti at different larval stages. methods: vorticella sp infected mosquito larvae were crushed in the 0.85% saline and homogenized well to get vorti­cella in suspension. the effects of vorticella sp infections on larval ...

In this work, the backward Bayesian multiple linear regression (BBMLR) as a new approach is presented to predict the adsorption efficiency (AE) of Cd(II) ions by ostrich bone char (OBC) in the fixed bed adsorption with four operational variables consisting of pH (2-9), inlet Cd(II) concentration (Co= 25-100 mg/L), bed depth (h= 3-9 cm) and feed flow rate (Q= 0.5-30 mL/min). The performance of t...

carum copticum is a grassy and annual plant which is believed to have several therapeutic effects, including anti-asthmatic properties. we have therefore studied the bronchodilatory and anticholinergic effects of 4 rnl aqueous extract (ae), 0.0 5 ml ethanol extract (ee), and 0.0 0 5 ml essential oil (eo) of carum copticum and 1 rnl of a 5 mm solution of its main ingredient, thymol (t), in compa...

in southeast asia, aedes aegypti (l.) has been incriminated as principal vector of dengue viruses and ae. albopictus as the secondary vector of dengue fever. therefore, the aim of this study was to investigate the effectiveness of three for-mula tions of pyrethrin derived from tanacetum cinerariaefolium against the dengue/dengue haemorrhagic fever vectors aedes aegypti and ae. albopictus in the...

The most prevalent natural source of hydrocolloids, cosmetics, medications, and nutraceuticals is marine seaweed (macroalgae). Numerous bioactivities, including antiviral, anticancer, anti-inflammatory, immunomodulatory characteristics, have been found in bioactive substances such as polyphenols sulfated non-sulfated polysaccharides. As a result, new start-up projects industries based on are em...