High-resolution morphological identification and characterization of living neuroblastoma SK-N-SH cells by hopping probe ion conductance microscopy

2011 ◽  
Vol 1386 ◽  
pp. 35-40 ◽  
Author(s):  
Xiao Liu ◽  
Xi Yang ◽  
Bin Zhang ◽  
Xiaofan Zhang ◽  
Hujie Lu ◽  
...  
Keyword(s):  
High Resolution ◽  
Morphological Identification ◽  
Ion Conductance ◽  
Identification And Characterization

scholarly journals On the Identification and Characterization of Drought and Aridity in Postglacial Paleoenvironmental Records from the Northern Great Plains

2004 ◽  
Vol 56 (2-3) ◽  
pp. 229-246 ◽  
Author(s):  
Alwynne B. Beaudoin
Keyword(s):  
Global Warming ◽  
High Resolution ◽  
Great Plains ◽  
Northern Great Plains ◽  
Short Term ◽  
Instrumental Data ◽  
Proxy Records ◽  
Identification And Characterization

Abstract The Northern Great Plains region is especially sensitive to drought and is likely to be even more drought-prone under projected global warming. Drought has been invoked as an explanatory factor for changes seen in postglacial paleoenvironmental records. These proxy records may extend drought history derived from instrumental data. Moreover, in the last decade, some paleoenvironmental studies have been expressly undertaken for the examination of long-term drought history. Nevertheless, few such studies explicitly define drought. This makes it difficult to compare results or to understand what the results mean in terms of the operational drought definitions that are used in resource management. Operational drought is defined as usually short-term; longer sustained dry intervals reflect a shift to aridity. Therefore, high resolution paleoenvironmental proxies (annual or subdecadal) are best for the investigation of drought history. Such proxies include tree rings and some lake records. However, most lake-based records are sampled at lower resolution (decadal or subcentury) and are therefore providing aridity signals.

Application of HPLC-Q/orbitrap MS in the detection and identification of anticancer constituents in ethyl acetate components from Hedyotis diffusa

2020 ◽  
Vol 12 (32) ◽  
pp. 4037-4047
Author(s):  
Xi Chen ◽  
Baojin Zhao ◽  
Mengjiao Zhang ◽  
Min Dong ◽  
Yunlan Li ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
High Resolution ◽  
Ethyl Acetate ◽  
High Resolution Mass Spectrometry ◽  
Detection And Identification ◽  
Hedyotis Diffusa ◽  
Identification And Characterization ◽  
Orbitrap Ms ◽  
Resolution Mass

A feasible analytical method based on HPLC-quadrupole/electrostatic field orbitrap high-resolution mass spectrometry (HPLC-Q/orbitrap MS) was established for the identification and characterization of anticancer constituents in ethyl acetate components from Hedyotis diffusa.

scholarly journals Identificación y caracterización preliminar del agente causal de la mancha necrótica de las hojas de la mora (Rubus glaucus) en el muncipio de Trujillo (Valle del Cauca, Colombia)

2008 ◽  
Vol 8 (2) ◽  
pp. 22 ◽  
Author(s):  
María José Botero ◽  
Germán Franco
Keyword(s):  
Cropping Systems ◽  
Morphological Identification ◽  
High Humidity ◽  
Distilled Water ◽  
Biochemical Tests ◽  
La Mancha ◽  
Pathogenicity Tests ◽  
Valle Del Cauca ◽  
Identification And Characterization

<p>El cultivo de la mora en las veredas Chuscales y Monteloro del municipio de Trujillo (Valle del Cauca) genera el 100% de los ingresos familiares. Con el objeto de mejorar la productividad y beneficiar la economía de estas comunidades, a lo largo de dos años se llevó a cabo un proyecto de diagnóstico y desarrollo de prácticas agronómicas y manejo sanitario, en arreglos agroforestales en el cultivo de la mora. Con frecuencia se hallaron manchas necróticas en el follaje que no correspondían a síntomas de enfermedades descritas previamente; éstas coalescían hasta cubrir totalmente el área foliar y necrosar la hoja; además, se observó desintegración de los tejidos en presencia de alta humedad. En campo se encontró una incidencia del 30% aunque no se evaluaron los efectos sobre la producción. En laboratorio, mediante cultivo en medios selectivos, pruebas bioquímicas e identificación morfológica, se determinó la presencia de <em>Pseudomonas </em>no fluorescentes procedentes de muestras de hojas de mora de diferentes edades con lesiones necróticas. Así mismo, se realizaron pruebas de patogenicidad en invernadero y laboratorio utilizando una concentración de 108 bacterias/mL y agua destilada estéril para los testigos, procedimiento que logró reproducir las lesiones encontradas en campo y que permitió reaislar de nuevo la bacteria.</p><p><strong> </strong></p><p><strong>Identification and characterization of the leaf necrotic spot of blackberry (<em>Rubus glaucus</em>) in the municipality of Trujillo (Valle del Cauca, Colombia) </strong></p><p>The blackberry crop in the Chuscales and Monteloro regions of the municipality of Trujillo (Valle del Cauca, Colombia) generates 100% of the familiar income. To improve productivity and income of these communities, a diagnostic and development of disease control practices project was undertaken on blackberry cropping systems during a two year period. Frequently, necrotic sports in the foliage were found that did not correspond to symptoms of previously described diseases for the crop; these spots coalesced to completely cover the foliar area resulting in leaf total necrosis. In addition, tissue disintegration was observed in the presence of high humidity. Under field conditions, a 30% incidence was found, though the effects on production were not evaluated. In the laboratory, using culture in selected media, biochemical tests and morphological identification, the presence of non-fluorescent <em>Pseudomonas </em>was determined in samples of blackberry leaves of different ages with necrotic lesions. Additionally, pathogenicity tests were performed in greenhouse and laboratory, using a bacterial a c 108 bacterium/mL and sterile distilled water as control, that reproduced the lesions found in the field and allowed re-isolation of the bacterium. </p>

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