منابع مشابه
Our wall as the origin of CP violation
A possibility that the origin of the CP violation in our world is a domain wall itself, on which we are living, is investigated in the context of the brane world scenario. We estimate the amount of the CP violation on our wall, and show that either of order one or suppressed CP phases can be realized. An interesting case where CP is violated due to the coexistence of the walls, which conserve C...
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Probably in no branch of the sciences is there such misuse of the term theory as in astronomy. This misuse finds its way into science magazines, TV and radio broadcasts, science news web sites, and even encyclopedias. Many of the conjectures about the solar system's formation are bantered as theories when they really are insufficiently scrutinized hypotheses. I think the Big Bang has adequate e...
متن کاملThe urbanisation of our species
Ever since humans started to develop agriculture, trade and task differentiation, agglomerations have evolved according to scaling rules that may well be universal. After passing the milestone of 50% urbanisation, humanity is rapidly becoming a predominantly city-dwelling species. Ensuring the resilience, safety and sustainability of fast-growing cities will require much more joined-up policy a...
متن کاملVISCERAL LEISHMANIASIS AS FEVER OF UNKNOWN ORIGIN
Visceral leishmaniasis is the second most common cause of fever of unknown origin in our study. This disease is not common in adults, although it's endemic among the pediatric age group. The majority of the affected individuals were young. High grade spiking fever, chills and splenomegaly were unique findings. Other common findings were neutropenia, anemia, abnormal liver function tests, st...
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ژورنال
عنوان ژورنال: Scientific American
سال: 1882
ISSN: 0036-8733
DOI: 10.1038/scientificamerican12301882-5825supp