The city of Teotihuacan (AD 1–550) was a major multiethnic urban center that attracted migrants from as far away west Mexico and the Maya region. Past research in Tlajinga district at using oxygen isotopes human remains estimated nearly 30% population 33, single apartment compound, were migrants. This study takes dual-isotope approach ( 87 Sr/ 86 Sr ? 18 O p ) to reevaluate proportion in-migrat...

aquatics are a source of bioactive compounds that these compounds have different properties such as antimicrobial activity. in this study, antibacterial activity of methanol, chloroform and hexane extracts from body wall, gonad and intestine of sea cucumber holothuria leucospilota was evaluated against bacillus subtilis, pseudomonas aeruginosa and staphylococcus aureus. bioactive compounds of b...

background: the antioxidant components have been identified in some pine species. antioxidant properties of proantocyanidins reduce free radicals induced by dna fragmentation and lipid proxidation and also proanthocyanidines could curb lipid peroxidation. objective: in this study, we analyzed different parts of pinus eldarica (bark, seed and needle) and assessed their antioxidant contents. meth...

the angular dependent magnetoresistance oscillation (admro) of the stage-2 ibr graphiteintercalation compound (gic) was studied between 1.8 k and 110 k in magnetic fields between 1 and 9t. there was a series of peaks in the c-axis resistance as the field direction was changed from the c axisto the (001) plane. the field independence of the angular positions of the peaks, showing that theoscilla...

Tests for a proportion that may be zero are described. The setting is an environment in which there can be misclassifications or misdiagnoses, giving the possibility of nonzero counts from false positives even though no real examples may exist. Both frequentist and Bayesian tests and analyses are presented, and examples are given.

Although Turing pattern is one of the most universal mechanisms for pattern formation, in its standard model the number of stripes changes with the system size, since the wavelength of the pattern is invariant. It fails to preserve the proportionality of the pattern, i.e. the ratio of the wavelength to the size, that is often required in biological morphogenesis. To get over this problem, we sh...