To navigate during their long-distance migration, monarch butterflies (Danaus plexippus) use a time-compensated sun compass. The sun compass timing elements reside in light-entrained circadian clocks in the antennae. Here we show that either antenna is sufficient for proper time compensation. However, migrants with either antenna painted black (to block light entrainment) and the other painted ...

Saunders & van Brakel’s criticism of Berlin & Kay’s methodology misunderstands the fact that scientific hypotheses are tested by generating new, replicable data with novel explanatory power. Thus, although Berlin and Kay studied differences in colour words between languages, the same patterns are also present in colour word usage within languages, in a range of literary and other textual databa...

although many studies and excavations at islamic sites have been done, and something position of islamic pottery have been marked, but there is a lot of problem exist in this case like centers of pottery and stylistics diversity. therefore archaeological excavationswith accurate studies can solve very of this problems. in this paper il-khanid pottery from three season archeological excavation a...

The influence of the painting process on a biocompostable waste is studied. Disintegration degree (D %) of a 100% biocompostable plastic made from potato almidon is calculated for both painted and non -painted samples. Solid matrix is also characterized by means of a laboratory scaled composting process following UNE-EN norms [2, 3]. It can be concluded that painting has a negative influence on...

c? ^ t v Picheco s an kii oik,?With reference to Dr. J. jN; 'c(hocl of bug n your February number. A simpj remedy being destructionI remember the coconut used in a hospital many years ago, but do not know why it was not more generally adopted in other institutions. I desire to draw attention to the following procedure which seems to be a prophylactic against bugbreeding. Hospital cots, if paint...

nature has great importance on prehistoric human life and attention to the environment and discovering mysteries of life which influence their life, always have been considered as concerns of prehistoric people. the elements such as water, wind and earth for primary human were important elements because of no awareness of environment in primary stages of sedentary life. human beings always trie...