Background: Low-level lasers are used for various medical applications including wound healing and hair loss treatment. Cell Therapy using skin stem cells could be a novel approach to hair transplantation. However, there is no study on the effect of low-level laser on the hair follicle stem cells. So, in this study, we investigated the effect of low level laser irradiation on viability and ROS ...

introduction: in spite of large number of studies regarding relation between thyroid cancer and childhood irradiation, contraversy still exists management of these patients. this study tries to find optimal method of thyroid evaluation in this group. methods and patients: in a recall program using mass media in khorasan, all patients with childhood irradiation were invited for thyroid evaluatio...

introduction: textile industries produce large volume of colored dye effluents which are toxic and removal of dyes from wastewater is a significant environmental issue. advanced oxidation process (aops) is alternative method for the complete degradation many organic pollutants. zno and tio2 are important photocatalysts with high catalytic activity that have attracted much research attention. ma...

in this study, the potential of biosorbent obtained from silk maze, was investigated for the batch biosorption of direct red 81 (dr 81) in aqueous solution. the effects of temperature, biosorbent amount, contact time, initial dye concentration and ultrasonic irradiation were also evaluated. furthermore, experimental equilibrium and kinetics data were fitted by langmuir and freundlich isotherms ...

microwave-assisted three component cyclocondensation reactions of aldehydes, amides and dienophiles in the presence of acetic anhydride and para-toluenesulfonic acid as a catalyst to afford the highly substituted cyclohexene derivatives, in relatively good yields after several minutes are reported.

this paper describes laboratory scale experiments examining the impact of microwave irradiation on the granular activated carbon (gac) exposed to toluene, a common organic vapor frequently released into work environment as well as outdoor. a stream containing 300 ppm toluene was supplied and passed through the granular activated carbon. the saturated adsorbent was placed in a quartz glass react...

clavulanic acid is produced industrially by fermentation of streptomyces clavuligerus and researches have increased its production by strain improvement, recombinant dna technology, and media composition and growth condition optimization. the main objective of this study was to increase the level of clavulanic acid production from streptomyces clavuligerus (dsm 738), using uv irradiation. after...

background: ghrelin is a hormone related to food intake in rodents and humans, mainly produced in stomach. this study aimed to determine the effect of irradiation on ghrelin concentration in the gastric mucosa of rats. materials and methods : twenty-five rats were exposed to 15 gy of whole-abdominal irradiation. gastric tissue samples were obtained 1, 3, 7, 30, and 90 days after irradiation. fi...

background: central nervous system (cns) relapse in acute lymphoblastic leukemia was significantly decreased due to the use of new chemotherapyeutic agents, intrathecal chemotherapy and cranial irradiation. the purpose of this study was to compare the effectiveness of intrathecal (it) cns chemotherapy alone versus combination of it chemotherapy with cranial irradiation for prevention of cns rel...