Lago Agrio (Nueva Loja), Ecuador: A Strategic Black Spot?

2013 ◽  
Author(s):  
John A. Conway
Keyword(s):  
Black Spot

A Method for Setting the Clearance Angle

1972 ◽  
Vol 30 ◽  
pp. 388-389
Author(s):  
Michael T. Bucek ◽  
Howard J. Arnott
Keyword(s):  
Experimental Evidence ◽  
Light Source ◽  
Black Spot ◽  
Critical Factor ◽  
Clearance Angle ◽  
Crude Approximation ◽  
Ultrathin Sections

It is believed by the authors, with supporting experimental evidence, that as little as 0.5°, or less, knife clearance angle may be a critical factor in obtaining optimum quality ultrathin sections. The degree increments located on the knife holder provides the investigator with only a crude approximation of the angle at which the holder is set. With the increments displayed on the holder one cannot set the clearance angle precisely and reproducibly. The ability to routinely set this angle precisely and without difficulty would obviously be of great assistance to the operator. A device has been contrived to aid the investigator in precisely setting the clearance angle. This device is relatively simple and is easily constructed. It consists of a light source and an optically flat, front surfaced mirror with a minute black spot in the center. The mirror is affixed to the knife by placing it permanently on top of the knife holder.

Black-Spot Identification Using Accident Severity Approach for Cyberabad Region of Hyderabad City - A Case Study

2015 ◽  
Vol 5 (4) ◽  
pp. 36-42
Author(s):  
Sharath Goud ◽  
◽  
M. Kumar ◽  
A. Ramesh ◽  
◽  
...  
Keyword(s):  
Black Spot ◽  
Accident Severity

Black Spot Identification and Audit Analysis for Heterogeneous Traffic Conditions in Hyderabad City � a Case Study

2015 ◽  
Vol 4 (3) ◽  
pp. 34-42
Author(s):  
T. Sri Lakshmi Sowmya ◽  
◽  
A. Ramesh ◽  
B.N.M. Rao ◽  
M. Kumar ◽  
...  
Keyword(s):  
Black Spot ◽  
Heterogeneous Traffic ◽  
Traffic Conditions

Pattern of spatial distribution and sampling technique of winter jujube black spot

2010 ◽  
Vol 17 (4) ◽  
pp. 734-738
Author(s):  
Qing-Nian LIU ◽  
Jun-Zhan LIU ◽  
Jian-Qing LI
Keyword(s):  
Spatial Distribution ◽  
Black Spot ◽  
Sampling Technique

scholarly journals Genome-wide identification and expression analysis of the Brassica oleracea L. chitin-binding genes and response to pathogens infections

Planta ◽  
2021 ◽  
Vol 253 (4) ◽  
Author(s):  
Mingzhao Zhu ◽  
Shujin Lu ◽  
Mu Zhuang ◽  
Yangyong Zhang ◽  
Honghao Lv ◽  
...  
Keyword(s):  
Powdery Mildew ◽  
Gene Family ◽  
Brassica Oleracea ◽  
Downy Mildew ◽  
Fusarium Wilt ◽  
Black Spot ◽  
Housekeeping Genes ◽  
Chitinase Gene ◽  
Genome Wide ◽  
A Genome

Abstract Main conclusion Chitinase family genes were involved in the response of Brassica oleracea to Fusarium wilt, powdery mildew, black spot and downy mildew. Abstract Abstract Chitinase, a category of pathogenesis-related proteins, is believed to play an important role in defending against external stress in plants. However, a comprehensive analysis of the chitin-binding gene family has not been reported to date in cabbage (Brassica oleracea L.), especially regarding the roles that chitinases play in response to various diseases. In this study, a total of 20 chitinase genes were identified using a genome-wide search method. Phylogenetic analysis was employed to classify these genes into two groups. The genes were distributed unevenly across six chromosomes in cabbage, and all of them contained few introns (≤ 2). The results of collinear analysis showed that the cabbage genome contained 1–5 copies of each chitinase gene (excluding Bol035470) identified in Arabidopsis. The heatmap of the chitinase gene family showed that these genes were expressed in various tissues and organs. Two genes (Bol023322 and Bol041024) were relatively highly expressed in all of the investigated tissues under normal conditions, exhibiting the expression characteristics of housekeeping genes. In addition, under four different stresses, namely, Fusarium wilt, powdery mildew, black spot and downy mildew, we detected 9, 5, 8 and 8 genes with different expression levels in different treatments, respectively. Our results may help to elucidate the roles played by chitinases in the responses of host plants to various diseases.

Prospection of genotypes resistant to black spot in half‐sib families of papaya

2021 ◽  
Author(s):  
J.T.B. Chagas ◽  
M. Vivas ◽  
R. Moraes ◽  
H.O. Francelino ◽  
T.S. Jorge ◽  
...  
Keyword(s):  
Black Spot ◽  
Sib Families

Black spot partial resistance in diploid roses: 
QTL discovery and linkage map creation

2019 ◽  
pp. 135-142 ◽  
Author(s):  
M. Yan ◽  
D.H. Byrne ◽  
P.E. Klein ◽  
W.E. van de Weg ◽  
J. Yang ◽  
...  
Keyword(s):  
Linkage Map ◽  
Partial Resistance ◽  
Black Spot ◽  
Qtl Discovery
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