Because of the highly unique structures of marine natural products, there are many examples of structures that were originally proposed based on spectral analyses but later proven incorrect. In many cases, the total syntheses of the originally proposed structures of marine natural products has confirmed their incorrectness and the subsequent total syntheses of the newly proposed structures prov...

the ordinary tensor product of modules is defined using bilinear maps (bimorphisms), that are linear in eachcomponent. keeping this in mind, linton and banaschewski with nelson defined and studied the tensor product in an equational category and in a general (concrete) category k, respectively, using bimorphisms, that is, defined via the hom-functor on k. also, the so-called sesquilinear, or on...

the genus rhodococcus is gram positive bacterium which was classified into the family of nocardiaceae. the organism can be isolates from different sources, with capability to degrade diverse types of pollutant. nowadays, scientists reported a few secondary metabolites which are produced by rhodococci. hence, the present study tried to isolate rhodococci from different soil samples with the capa...

this research was conducted to investigate the factors contributing to thefailure in the forestry and rangeland by-product cooperative companies in lorestanprovince, iran. a descriptive-correlative research design was used. the statisticalpopulations were 1100 people divided into two groups of experts from natural resourceagency in lorestan province and members of cooperative companies. the sam...

the strategic planning of marketing and the application of marketing strategies for achieving sustainable competitive advantages are of the factors that help the survival of producers of agricultural organic products. although, there are evidences of the growth of organic farming in iran but, there are no useful information and proposals for making marketing strategies in organic production hol...

introduction: hamburger is a popular type of fast foods consumed all over the world. sarcocystis spp. is a zoonotic parasitic pathogen which endangers safety of meat and meat products. the present study describes the prevalence rate of sarcocystis spp. in hamburgers in yazd, iran using pcr-rflp. materials and methods: raw hamburger samples (100 traditional and 90 industrial) from central region...

marketing literature reveals that perceived value is always considered to be of paramount importance when consumers purchase a product. in order to form a positive attitude towards green products resulting from a higher perceived value, the products proclaimed as green should incorporate the worth which consumers value the most while purchasing. the present study investigates whether there is a...

bioassays were conducted to assess the contact toxicity of two plant essential oils against adults of sitophilus granarius (l.) and tribolium confusum jacquelin du val. essential oils were extracted from seeds of carum copticum l. and cuminum cyminum l. contact toxicity was assessed by topical application and adult mortality was counted 1, 2, 6 and 24 h after exposure. bioassays were carried ou...

conclusions mlva analysis showed that samples obtained from different sources could have similar genetic profile. as a result, administration of penicillin in patients with listeriosis (especially pregnant women) and antibiotic susceptibility test are recommended. the fast and accurate methods such as mlva for tracking of pollution sources of l. monocytogenes are recommended during outbreaks. r...