نتایج جستجو برای: 1859 1925م
تعداد نتایج: 1900 فیلتر نتایج به سال:
The true bugs (Insecta: Heteroptera) are one of the most important insects which included several pest and beneficial species (predators and parasitoids) and therefore have important role in agroecosystems. The fauna of aquatic and semi-aquatic Heteroptera was studied in paddy fields and around aquatic ecosystems in some regions of Iran through 2004-2009. Totally 58 species from 14 families inc...
Committee appointed, January 1859. Members.?Dr. Babington, F.RS.,Dr. McWilliam, C.B., F.RS., Dr. Milroy, Dr. James Bird, Dr. Seaton, Dr. Camps, Dr. Murchison, Mr. Ernest Hart : Mr. J. N. Radcliffe, Secretary. In pursuance of the duties assigned to the Committee, to^ collect information and report upon the epidemic of diphtheria, which has prevailed in England since the commencement of 1857, a c...
period forms a curved line above or below the mean. It is obvious that by this method any deviation from a straight line represents variation in the age-incidence of mortality. The first diagram (Fig. 1) which I will ask you to look at is based upon the deaths in London from diphtheria and croup, from the period 1859 to 1905. The first period, represented by a curved line, relates to the years ...
[1] The Carrington Event of 1859 is considered to be among the largest space weather events of the last 150 years. We show that only one out of 14 well-resolved ice core records from Greenland and Antarctica has a nitrate spike dated to 1859. No sharp spikes are observed in the Antarctic cores studied here. In Greenland numerous spikes are observed in the 40 years surrounding 1859, but where ot...
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