Results 261 to 270 of about 28,137 (308)

Clinical and morphological risk factors for the recurrence of anterior communicating artery aneurysms after clipping or coiling

Acta Neurochirurgica, 2020
The aim of this study was to evaluate clinical and morphological factors associated with recurrence in anterior communicating artery (AcomA) aneurysms after clipping or coiling.We retrospectively reviewed the clinical and radiologic features of consecutive 214 patients with AcomA aneurysms treated between January 2012 and December 2016 in a single ...
Hee Jong Ki, Kwan Sung Lee, Bum‐Soo Kim, Jai Ho Choi, Yong Sam Shin   +4 more
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Morphological characterization of bicontinuous structures in polymer blends and microemulsions by the inverse-clipping method in the context of the clipped-random-wave model

Physical Review E, 2000
A method is proposed to determine the spectral function of the clipped-random-wave (CRW) model directly from scattering data. The spectral function f(k) (k is a wave number) gives the distribution of the magnitude of wave vectors of the sinusoidal waves that describes the essential features of the two-phase morphology.
Hiroshi Jinnai, Yukihiro Nishikawa, Sow-Hsin Chen, Satoshi Koizumi, Takeji Hashimoto   +4 more
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Effects of clipping and soil compaction on growth, morphology and mycorrhizal colonization of Schizachyrium scoparium, a C4 bunchgrass

Oecologia, 1987
A factorial design of clipping and compaction was used to study the responses of Schizachyrium scoparium and its mycorrhizal symbionts to these stresses. All treatment combinations significantly reduced the growth and biomass of plants relative to controls.
Linda L. Wallace
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Growth, morphology and gas exchange of mycorrhizal and nonmycorrhizal Panicum coloratum L., a C4 grass species, under different clipping and fertilization regimes

Oecologia, 1981
Root samples collected in grasslands of the Serengeti ecosystem, Tanzania, were found to be mycorrhizal and infection frequency was positively correlated with grazing intensity across sites. To examine the role of mycorrhizae in a grazing ecosystem, I analyzed the growth, morphology and gas exchange of mycorrhizal and nomycorrhizal plants of Panicum ...
Linda L. Wallace
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Responses of Kura Clover to Sheep Grazing and Clipping: II. Below‐Ground Morphology, Persistence, and Total Nonstructural Carbohydrates

Agronomy Journal, 1994
AbstractBelow‐ground morphology and total nonstructural carbohydrate (TNC) reserve patterns may explain the excellent persistence of kura clover (Trifolium ambiguum M. Bieb.). Our objective was to determine the effects of frequent clipping and sheep (Ovis spp.) grazing on the below‐ground morphology, TNC reserves, and persistence of kura clover ...
Paul R. Peterson, Craig C. Sheaffer, R. M. Jordan, Charles Christians   +3 more
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Morphological and functional changes of the rat parotid glandular cells by clipping and reopening the parotid duct, using HAM8 antibody

Anatomical Science International, 2008
The purpose of this experiment is to examine the proliferative process of rat acinar cells after parotid duct ligation and reopening. Two experimental groups were observed. The first group was killed from 0 to 14 days after the duct ligation. In the second group, the duct was clipped for 14 days, and it was reopened.
Takashi Miyazaki, Shuji Tatsukawa, Hirokazu Kitamura, Keisuke Ina, Hirokazu Abe, Yoshihisa Fujikura   +5 more
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[Morphologic and surgical indications for temporary partial occlusion of the inferior vena cava by soft clipping].

Arkhiv anatomii, gistologii i embriologii, 1990
In the experiment performed on 72 dogs peculiarities of morphological changes in the posterior vena cava wall have been studied at a temporal disturbance of blood flow in it by means of a complete or partial ligation of the vessel with catgut, a complete or partial closing of the lumen of the vein by means of a wavy catgut clip, covered with glue MK-6.
Zakhar'ian Al, Rudina Ev, Petrovskiĭ In
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The effects of clipping and soil moisture on leaf and root morphology and root respiration in two temperate and two tropical grasses

Plant Ecology, 2008
Numerous studies have explored the effect of environmental conditions on a number of plant physiological and structural traits, such as photosynthetic rate, shoot versus root biomass allocation, and leaf and root morphology. In contrast, there have been a few investigations of how those conditions may influence root respiration, even though this flux ...
Michele A. Thorne, Douglas A. Frank
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The Effect of Nitrogen Rate and Clipping Frequency upon the Yield, Protein Content and Certain Morphological Characteristics of Coastal Bermudagrass (Cynodon dactylon, (L) Pers.)¹

Agronomy Journal, 1956
SynopsisIncreasing the nitrogen rate from 0 to 900 pounds per acre annually increased hay yield, protein percentage, protein yield, stem length, leaf length, internode length and internode number in Coastal Bermudagrass, but decreased leaf percentage, seed‐head frequency, and percentage nitrogen recovery.
Gordon M. Prine, Glenn W. Burton
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Morphological models of complex ordered materials based on inhomogeneously clipped Gaussian fields

Physical Review E, 2009
Clipping a Gaussian random field at a level that is position-dependent yields statistically inhomogeneous morphologies, relevant to many ordered nanostructured materials. The one-point and two-point probability functions of the morphology are derived, as well as a general relation between the specific surface area and the gradient of the clipping ...
Gommes, Cédric, Pirard, Jean-Paul
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