a fast and simple modified quechers (quick, easy, cheap, rugged and safe) extraction method based on spiked calibration curves and direct sample introduction was developed for determination of benzo[a]pyrene (bap) in bread by gas chromatography-mass spectrometry single quadrupole selected ion monitoring (gc/ms-sq-sim). sample preparation includes extraction of bap into acetone followed by clean...

Collective migration of cohesive tissues is a fundamental process in morphogenesis and particularly well illustrated during gastrulation by the rapid massive internalization mesoderm, which contrasts with much more modest movements ectoderm. In Xenopus embryo, differences morphogenetic capabilities ectoderm mesoderm can be connected to intrinsic motility individual cells, very low for ectoderm,...

A fast and simple modified QuEChERS (quick, easy, cheap, rugged and safe) extraction method based on spiked calibration curves and direct sample introduction was developed for determination of benzo[a]pyrene (BaP) in bread by gas chromatography-mass spectrometry single quadrupole selected ion monitoring (GC/MS-SQ-SIM). Sample preparation includes extraction of BaP into acetone followed by clean...

background: salt content and ph degree are the quality indicators of bread which their unauthorized levels may have harmful effects on body health. accordingly, this survey was carried out to evaluate ph and salt contents in bread samples produced in mashhad, iran. methods: totally 708 bread samples (340 loaves of lavash, 183 loaves of taftun, 139 loaves of barbari and 46 loaves of sangak bread...

A fast and simple modified QuEChERS extraction method was developed for determination of Benzo[a]pyrene (BaP) in 137 traditional (Sangak), semi-industrial (Sangak) and industrial bread samples using spiked calibration curves by GC/MS. Sample preparation includes extraction of BaP into acetone followed by cleanup with dispersive solid phase extraction. The limit of detection and limit of quantif...

Advancements in Case Studies Septic Shock and Severe Acute Respiratory Distress Secondary to Covid-19 Pediatric: A Report Shirin Sarejloo1*, Mohammad Reza Hatamnejad2 Arzhang Naseri2 1Medical doctor cardiologist, Cardiovascular Research Center, Shiraz University of Medical Sciences, Iran 2Medical doctor, Member university medical science, *Corresponding author: Sarejloo, Submission:July 11, 202...

The article covers the issue of teaching Alisher Navoi’s epic “Farhad and Shirin” in higher educational institutions based on modern technologies. New effective methods for works have been developed. In particular, “kun bayti” technology aimed at attracting student’s attention, conceptual tables comparison, drawings bring student closer to work a certain extent during course lesson. Describing ...