A Solution to Machine Group Analysis Employing Auxiliary Cell Formation

Author(s):  
E. G. John
2006 ◽  
Vol 59 ◽  
pp. 97-102 ◽  
Author(s):  
J. Kandula ◽  
A. Stewart ◽  
H.J. Ridgway

This paper presents the first report of cultivation of Scutellospora calospora with RiTDNA transformed carrot (Daucus carota L) roots Carrot root transformation was done using Agrobacterium rhizogenes Spore germination tests were conducted on 6 water agar and minimal media to assess the time taken for germination Morphological characteristics of extraradical mycelium intraradical mycelium branched absorbing structures and auxiliary cell formation were recorded Auxiliary cell formation started within 35 days of root contact and continued until 2 months There was an extensive thick brown extraradical mycelial development following root infection but spore formation was low (four spores) and was observed only after 8 months Spores were full of oil globules and were produced on MSR medium but not M medium


Author(s):  
S. Mahajan ◽  
M. R. Pinnel ◽  
J. E. Bennett

The microstructural changes in an Fe-Co-V alloy (composition by wt.%: 2.97 V, 48.70 Co, 47.34 Fe and balance impurities, such as C, P and Ni) resulting from different heat treatments have been evaluated by optical metallography and transmission electron microscopy. Results indicate that, on air cooling or quenching into iced-brine from the high temperature single phase ϒ (fcc) field, vanadium can be retained in a supersaturated solid solution (α2) which has bcc structure. For the range of cooling rates employed, a portion of the material appears to undergo the γ-α2 transformation massively and the remainder martensitically. Figure 1 shows dislocation topology in a region that may have transformed martensitically. Dislocations are homogeneously distributed throughout the matrix, and there is no evidence for cell formation. The majority of the dislocations project along the projections of <111> vectors onto the (111) plane, implying that they are predominantly of screw character.


Author(s):  
K. Florian Klemp ◽  
J.R. Guyton

The earliest distinctive lesions in human atherosclerosis are fatty streaks (FS), characterized initially by lipid-laden foam cell formation. Fibrous plaques (FP), the clinically significant lesions, differ from FS in several respects. In addition to foam cells, the FP also exhibit fibromuscular proliferation and a necrotic core region rich in extracellular lipid. The possible transition of FS into mature FP has long been debated, however. A subset of FS described by Katz etal., was intermediate in lipid composition between ordinary FS and FP. We investigated this hypothesis by electron microscopic cytochemistry by employing a tissue processing technique previously described by our laboratory. Osmium-tannic acid-paraphenylenediamine (OTAP) tissue preparation enabled ultrastructural analysis of lipid deposits to discern features characteristic of mature fibrous plaques.


2020 ◽  
Vol 36 (5) ◽  
pp. 777-786 ◽  
Author(s):  
Julia Waldeyer ◽  
Jens Fleischer ◽  
Joachim Wirth ◽  
Detlev Leutner

Abstract. There is substantial evidence that students in higher education who have sophisticated resource-management skills are more successful in their studies. Nevertheless, research shows that students are often not adequately prepared to use resource-management strategies effectively. It is thus crucial to screen and identify students who are at risk of poor resource management (and consequently, reduced academic achievement) to provide them with appropriate support. For this purpose, we extend the validation of a situational-judgment-based instrument called Resource-Management Inventory (ReMI), which assesses resource-management competency (including knowledge of resource-management strategies and the self-reported ability to use this knowledge in learning situations). We evaluated the ReMI regarding factor structure, measurement invariance, and its impact on academic achievement in different study domains in a sample of German first-year students ( N = 380). The results confirm the five-factor structure that has been found in a previous study and indicate strong measurement invariance. Furthermore, taking cognitive covariates into account, the results confirm that the ReMI can predict students’ grades incrementally. Finally, a multi-group analysis shows that the findings can be generalized across different study domains. Overall, we provide evidence for a valid and efficient instrument for the assessment of resource-management competency in higher education.


Planta Medica ◽  
2007 ◽  
Vol 73 (09) ◽  
Author(s):  
N Ide ◽  
N Morihara ◽  
L Paptheodorou ◽  
R Stirner ◽  
N Weiss

2012 ◽  
Vol 31 (1) ◽  
pp. 217-251
Author(s):  
Soonmook Lee ◽  
Sun Jung Kwon ◽  
Sung Chil Yeo ◽  
이경희 ◽  
이현정 ◽  
...  
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