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( Dionicio Fuentes-aragon ),( Sandra Berenice Juarez-vazquez ),( Mateo Vargas-hernandez ),( Hilda Victoria Silva-rojas ) 한국균학회 2018 Mycobiology Vol.46 No.2
The filamentous Ascomycota Colletotrichum gloeosporioides sensu lato is a fungus that has been reported worldwide as a causal agent of anthracnose disease in avocado and other crops. In Mexico, this species affects fruits from an early stage of development in the orchard until the post-harvest stage. Although fungicides are continuously applied to control Colletotrichum species, pericarp cankers and soft rot mesocarp in fruits are still frequently observed. Considering the lack of a precise description of the causative agent, the aim of the current study was to determine the pathogens involved in this symptomatology. Twenty-four isolates were consistently obtained from the pericarp of avocado fruits cv. “Hass” collected in the central avocado-producing area of Mexico. Morphological features such as colony growth, conidia size, and mycelial appressorium were assessed. Bayesian multilocus phylogenetic analyses were performed using amplified sequences of the internal transcribed spacer region of the nuclear ribosomal DNA; actin, chitin synthase, glyceraldehyde-3-phosphate dehydrogenase partial genes; and APn2-Mat1-2 intergenic spacer and mating type Mat1-2 partial gene from the nine selected isolates. In addition, fruits were inoculated with a conidial suspension and reproducible symptoms confirmed the presence of Colletotrichum fructicola in this area. This pathogenic species can now be added to those previously reported in the country, such as C. acutatum, C. boninense, C. godetiae, C. gloeosporioides, and C. karstii. Disease management programs to reduce the incidence of anthracnose should include C. fructicola to determine its response to fungicides that are routinely applied, considering that the appearance of new species is affecting the commercial quality of the fruits and shifting the original population structure.
Systematic Reliability Study of Top-Gate p- and n-Channel Organic Field-Effect Transistors
Hwang, Do Kyung,Fuentes-Hernandez, Canek,Fenoll, Mathieu,Yun, Minseong,Park, Jihoon,Shim, Jae Won,Knauer, Keith A.,Dindar, Amir,Kim, Hyungchul,Kim, Yongjin,Kim, Jungbae,Cheun, Hyeunseok,Payne, Marcia American Chemical Society 2014 ACS APPLIED MATERIALS & INTERFACES Vol.6 No.5
<P>We report on a systematic investigation on the performance and stability of p-channel and n-channel top-gate OFETs, with a CYTOP/Al<SUB>2</SUB>O<SUB>3</SUB> bilayer gate dielectric, exposed to controlled dry oxygen and humid atmospheres. Despite the severe conditions of environmental exposure, p-channel and n-channel top-gate OFETs show only minor changes of their performance parameters without undergoing irreversible damage. When correlated with the conditions of environmental exposure, these changes provide new insight into the possible physical mechanisms in the presence of oxygen and water. Photoexcited charge collection spectroscopy experiments provided further evidence of oxygen and water effects on OFETs. Top-gate OFETs also display outstanding durability, even when exposed to oxygen plasma and subsequent immersion in water or operated under aqueous media. These remarkable properties arise as a consequence of the use of relatively air stable organic semiconductors and proper engineering of the OFET structure.</P><P><B>Graphic Abstract</B> <IMG SRC='http://pubs.acs.org/appl/literatum/publisher/achs/journals/content/aamick/2014/aamick.2014.6.issue-5/am405424k/production/images/medium/am-2013-05424k_0007.gif'></P><P><A href='http://pubs.acs.org/doi/suppl/10.1021/am405424k'>ACS Electronic Supporting Info</A></P>
Penetrating Cardiac Injury and Traumatic Pericardial Effusion Caused by a Nail Gun
( Willem Guillermo Calderon Miranda ),( Edgardo Jimenez Fuentes ),( Nidia Escobar Hernandez ),( Luis Rafael Moscote Salazar ),( Paul M. Parizel ) 대한외상학회 2017 大韓外傷學會誌 Vol.30 No.1
Penetrating cardiac injury caused by nail gun is an uncommon life-threatening condition characterized by a rapidly severe hemodynamic status compromise. We report non-contrast-enhanced CT findings of a right ventricle myocardium injury leading to a fluid collection in the pericardial space with the same attenuation as blood. The CT findings well depicted the pathological feature of a significant cardiac injury and may be helpful for the surgical management. [ J Trauma Inj 2017; 30: 21-23 ]