scholarly journals Ion Absorption in Atriplex Leaf Tissue I. Absorption by Mesophyll Cells

1968 ◽  
Vol 21 (6) ◽  
pp. 1119 ◽  
Author(s):  
CB Osmond

Leaf tissue cut into disks was unsuitable for quantitative ion-absorption studies because cells in the interior did not equilibrate with the external solution. Ion entry was restricted to the cut surface and diffusion was too slow to permit equilibration of the whole disk (apparent diffusion coefficient for sodium at O� 5�C was 1 X IO-L 3 X 10-7 cm2 sec-I). However, leaf slices 0�5 mm in width permitted rapid access of electrolyte to all cells and were used to study uptake of monovalent cations and oxalate

2012 ◽  
Vol 30 (10) ◽  
pp. 1534-1540 ◽  
Author(s):  
Andrew B. Rosenkrantz ◽  
Eric E. Sigmund ◽  
Aaron Winnick ◽  
Benjamin E. Niver ◽  
Bradley Spieler ◽  
...  

2014 ◽  
Vol 16 (12) ◽  
pp. 1599-1606 ◽  
Author(s):  
Peter S. LaViolette ◽  
Nikolai J. Mickevicius ◽  
Elizabeth J. Cochran ◽  
Scott D. Rand ◽  
Jennifer Connelly ◽  
...  

2021 ◽  
Vol 2021 ◽  
pp. 1-7
Author(s):  
Ming Li ◽  
Xiaodan Xu ◽  
Pengjiang Qian ◽  
Heng Jiang ◽  
Jianlong Jiang ◽  
...  

Texture analysis (TA) techniques derived from T2-weighted imaging (T2WI) and apparent diffusion coefficient (ADC) maps of rectal cancer can both achieve good diagnosis performance. This study was to compare TA from T2WI and ADC maps between different pathological T and N stages to confirm which TA analysis is better in diagnosis performance. 146 patients were enrolled in this study. Tumor TA was performed on every patient’s T2WI and ADC maps, respectively; then, skewness, kurtosis, uniformity, entropy, energy, inertia, and correlation were calculated. Our results demonstrated that those significant different parameters derived from T2WI had better diagnostic performance than those from ADC maps in differentiating pT3b-4 and pN1-2 stage tumors. In particular, the energy derived from T2WI was an optimal parameter for diagnostic efficiency. High-resolution T2WI plays a key point in the local stage of rectal cancer; thus, TA derived from T2WI may be a more useful tool to aid radiologists and surgeons in selecting treatment.


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