منابع مشابه
Rooks Use Stones to Raise the Water Level to Reach a Floating Worm
In Aesop's fable "The Crow and the Pitcher," a thirsty crow uses stones to raise the level of water in a pitcher and quench its thirst. A number of corvids have been found to use tools in the wild, and New Caledonian crows appear to understand the functional properties of tools and solve complex physical problems via causal and analogical reasoning. The rook, another member of the corvid family...
متن کاملUrinary stones resembling uric acid stones
A 52-year-old man was referred for the evaluation of mild renal failure with severe hypertension (220/130mmHg), which was resistant to combination therapy of a calcium channel blocker and an angiotensin II receptor blocker. Although he reported no past history indicating urolithiasis, urinalysis revealed plenty of round brownish stones (Figure 1A). The stones resembled uric acid (UA) stones (Fi...
متن کاملProstate Stones
Being the only exocrine organ located in the midline, the prostate gland is a compound tubuloalveolar exocrine gland of the male reproductive system, locating just below the bladder. The term “prostate” comes (as commonly published) from Greek prostates, literally which means “someone who stands before someone or something’’ that is ‘‘president’’ or ‘‘principal’’ ; however in a recent paper on ...
متن کاملDecay factors and patterns of stones in open-air historical sites built of carbonate sedimentary stones
The number of historical open-air sites built of stone are relatively limited in comparison to the other historical artificial in Iran, but these sites include great significance in terms of value, historic and their knowledge of past. Since these stone poen-air sites are generally about two thousand years old, they have been exposed to decay factors for a long time. Many information and data o...
متن کاملFasting and urinary stones
Introduction: Fasting is considered as one of the most important practices of Islam, and according to Prophet Mohammad, fasting is obligatory upon Muslims. The aim of this study is to evaluate the effects of fasting on urinary stones. Materials and Methods:Very few studies have been carried out on urinary stones and the effect of Ramadan fasting. The sources of the present study are Medline and...
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ژورنال
عنوان ژورنال: Nature
سال: 1900
ISSN: 0028-0836,1476-4687
DOI: 10.1038/061318b0