نتایج جستجو برای: reestablished species
تعداد نتایج: 548717 فیلتر نتایج به سال:
For a long period foreign trade was one of the major priorities for Russian economic development. Economic contradictions between Russia and Western countries changed international order. As result sanctions global financial banking system ruined, faces serious problems. In current situation has to reload its priorities. This article covers trends in during 2022-2023. 2022 oil natural gas expor...
attempts were made to present a practical key for identification of small strongyles, the identification ofwhich seems to be a difficult task to do. 4000 nematodes collected from the large intestine of horses anddonkeys were examined. 18 species of small strongyles of horse and 15 of donkey were found. from 6species of large strongyles found in both animals, we only dealt with 3 of triodontopho...
aeluropus lacinatus برای اولین بار از شمال شرق ایران (استان خراسان) گزارش می گردد. بنابراین با توجه به تغییراتی که در این جنس داده شده اکنون تعداد گونه های جنس aeluropus در ایران به 6 گونه می رسد. گونه جدید توسط صفات زیر از دو گونه نزدیک خود یعنی aeluropus littoralisو aeluropus pungens جدا می گردد. در این گونه گل آذین سنبله فشرده و گلپوش (بویژه تحتانی) در قاعده با موهای سفت و سفید و رگ پش...
Natural regeneration is one mechanism by which native rnixedspecies forests become reestablished on abandoned pasture. This study was done to determine patterns of and requirement for natural regeneration of native species in an open woodland after removal of cattle. Ten 50by 50-m quadrats were randomly selected within a 16-ha exclosure located at 1,700-m elevation inside the Hakalau Forest Nat...
In eight patients undergoing carotid endarterectomy, the mean velocity and an index of pulse amplitude in the middle cerebral artery were monitored continuously by transcranial doppler ultrasound. rCBF was measured by intracarotid injection of 133 Xenon shortly before and at the time of the carotid artery occlusion, and again a few minutes after carotid flow was reestablished. Comparison of the...
Hypoxic-ischemic brain injury is a well known consequence of cardiac arrest. Variable injuries can occur with purely hypoxic or histotoxic insults such as asphyxiation and carbon monoxide poisoning. The injury may happen at the time of the insult, but there may also be continued damage after circulation and oxygenation are reestablished. The nature and extent of the damage appears to depend on ...
Destruction of the central endothelium of the rat cornea was produced by mechanical injury, total debridement, or transcorneal freezing. Endothelial repair was then studied using specular microscopy, histological staining, pachymetry, and autoradiographic analysis of the incorporation of tritiated thymidine into nuclear DNA. Following an initial process of cell slide to cover the endothelial de...
Francisco J. Varela was a student and collaborator of Humberto R. Maturana. Their pioneering collaboration on Autopoiesis and Cognition reestablished “processes of living” as the principle topic of biological explorations. This topic had dropped out of the discourse of biology after the work of Jacob von Uexküll. Autopoiesis brought a new framework to biology. I say framework because it was not...
Introduction. The hypothenar hammer syndrome is a rare traumatic vascular disease of the hand. Method and Materials. We report the case of a 43-years-old man with a painful tumefaction of the left hypothenar region. The ulnar artery appeared thrombosed clinically and radiologically. The patient underwent surgery to resolve the ulnar nerve compression and revascularise the artery. Results. The s...
The real-time, single-trial activity in the human auditory cortex was extracted from magnetoencephalographic signals. A predictor of single-trial activity was defined as the sum of the average response and a mean-free base level computed over a range of base times. For simple stimuli the residual (predicted-actual) activity had a stimulus-independent oscillatory (10 Hz) component. This componen...
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