The absolute perfection with which honeybees construct their hexagonal comb cells has astonished human beings since ancient times. deep mystery is not why hexagons, but how such a perfect geometrical shape fabricated, without any portrait or tools. Do they possess divine intelligence? Recent studies shed light on this revered and show beyond doubt that it the thermo-mechanical properties of bee...

background: nowadays, there has been a growing trend of caesarean sections in iran. one reason would be the mother’s desire. increased maternal self‑efficacy can be an important step to reduce percentage of cesarean. this study aimed to determine the effectiveness of training‑based strategies to increase the self‑efficacy for choosing delivery method among pregnant women in shahrekord city. met...

background: infertility is an increasing medical and social problem. in vitro fertilization (ivf) has become a common and accessible treatment for a wide variety of indications that have variable outcomes. natural killer (nk) cells have been identified as relevant immunological factors involved in reproductive success or failure. objective: the aim of this study was to compare the percentage of...

microbial cells are producers of natural polymers present in plant cells. production of pullulan (an extracellular microbial polysaccharide) by aureobasidium pullularia pullulans (p. pullulans) was studied under fermentation conditions, and kinetic parameters were determined. pullulan formation obeyed a growth and non-growth associated term. phb (polyhydroxybutyrates) an intracellular biopolyme...

in this study, the concentrations of 25, 375 and 500 ml l -1 of cola+ 2000 mg l -1 of peppermint essence and concentrations of 30, 45 and 60 ml l -1 of apple extract +2000 mg l -1 rosemary essence on alstroemeria cut flowers (cv. balance) were investigated to verify the use of natural ingredients in flowers preservative solutions. this experiment was conducted in the laboratory of gorgan univer...

in this study, we have investigated the effects of mix of tomato (solanum lycopersicum) & carrot) daucus carota ( and red bell pepper )capsicum annuum( as a natural pigment source and astaxanthin as synthetic pigment sources on the skin colour of cichlid fish (astronotus ocellatus sp., agassiz, 1831), which are generally white with red patches in the dorsal skin. the fish were fed diets con...

use of zinc and iron oxide are common in the desulfurization process from natural gas. in thisresearch, after determinations of the size and specifications through tem and xrd for each of the metaloxides, two different size ratios were used, 0.66 for zinc oxide and 0.142 for iron oxide. further, absorption of sulfur compounds in gas (hydrogen sulfide (h2s), carbonyl sulfide (cos), methyl mercap...

this study presents the natural dye recovery from various biodegradable temple and household wastes. the raw material for colour extraction consisted residual flowers and garlands from various temples as well as onion and vegetables peels from vegetable markets, university hostels, and households, which were washed, dried, crushed, and sieved. the extracted natural colours were produced by mean...

this study examines the controlled release behavior of both water-soluble (acetaminophen, caffeine, theophylline and salicylic acid) and water insoluble (indomethacin) drugs derived from caesalpinia pulcherrima seed gum isolated from caesalpinia pulcherrima kernel powder. it further investigates the effect of incorporating diluents such as microcrystalline cellulose and lactose on caffeine rele...

results hla-drb1*07 (rr 5.3, p = 0.0008) and hla-drb1*08 (rr n.c. p = 0.0005) were significantly associated with the risk of pbc development. patients younger than 45 years had significantly higher alanine aminotransferase (p = 0.038) and alkaline phosphatase levels (p = 0.047) than older cases. in comparison to non-cc rs12979860, patients with cc rs12979860 genotype showed an early histologica...