Browsing by Title Facultad de Ciencias
Now showing items 7863-7882 of 8184
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(Universidad de Chile, 2009)The effects of forest fragmentation on ecologioal interaotions and partioularly on foodwebs have scarcely treen analyzed. Herbivory is usually lower in forest fragments than in continuous forest. Here we hypothesize that ...
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(Universidad de Chile, 2010)
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(Rockefeller University Press, 2020)Phagocytes use their actomyosin cytoskeleton to migrate as well as to probe their environment by phagocytosis or macropinocytosis. Although migration and extracellular material uptake have been shown to be coupled in some ...
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(2019-01)Lysosomal physiology has been shown to be important for the correct functioning of immune cells, including their migratory and their phagocytic properties. In this work, we aimed to explore the migratory process of immune ...
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(Elsevier Science Ltd., 1993-11-01)The alkaloids boldine, glaucine, predicentrine, apomorphine, coclaurine, norarmepavine and codeine were tested against the epimastigotes of the Tulahuén and LQ strains and the DM 28c clone of Trypanosoma cruzi. The ...
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(Universidad de Chile, 2020-01)Los insectos hematófagos exhiben comportamientos complejos en la búsqueda de alimento respondiendo a diversos estímulos olfativos y visuales del hospedero. Mepraia spinolai es el vector silvestre del protozoo flagelado ...
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(Elsevier, 2020)Hematophagous insects exhibit complex behaviour when searching for blood-meals, responding to several host stimuli. The hematophagous insect Mepraia spinolai is a wild vector of Trypanosoma cruzi, causative agent of Chagas ...
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(The American Society of Tropical Medicine and Hygiene, 2013)We evaluated Trypanosoma cruzi infection in 397 wild Mepraia gajardoi specimens from five coastal localities in northern Chile by detection of minicircle DNA by polymerase chain reaction. The wild capture sites were ...
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(ELSEVIER, 2008-02)The Southern Pacific Ocean coast has been traditionally considered a non-active transmission area for Chagas disease. In this report, we show evidence of Trypanosoma cruzi infection in the sylvatic kissing bug Mepraia ...
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(Peerj Inc, 2020)Trypanosoma cruzi, the cause agent of Chagas disease, is transmitted mainly by blood-feeding insects of the subfamily Triatominae. The T. cruzi life cycle alternates between triatomines and mammalian hosts, excluding birds ...
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(MDPI AGPostfachBaselCH-4005rasetti@mdpi.com, 2020)
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(Company of Biologists, 2020)Neurons are highly complex cells that heavily rely on intracellular transport to distribute a range of functionally essential cargoes within the cell. Post-translational modifications of tubulin are emerging as mechanisms ...
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(1995)The use of 3-fluoro-tyrosine as an alternative substrate for the enzyme tubulin:tyrosine ligase which catalyzes the incorporation of tyrosine into the α-tubulin subunit was investigated. The incorporation of tyrosine into ...
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(American Chemical Society, 2020)Conformational flexibility plays a critical role in enzyme function and is a key aspect in transitions from an open to a closed state induced by substrate binding and product release. Psychrophilic enzymes display a high ...
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(SciELO Agencia Nacional de Investigacion y Desarrollo (ANID), 2020)
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(Annales de l'institut Fourier, 2020)We give a signed fundamental domain for the action on R(+)(r1 )x C*(r2) of the totally positive units E+ of a number field k of degree n = r(1 )+ 2r(2 )which we assume is not totally complex. Here r(1) and r(2) denote the ...
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(1988)Examination of two close collections of Plocamium cartilagineum separated into plants bearing carposporophyte, tetrasporophyte and gametophyte yielded the same qualitative chemical composition, but the three reproductive ...
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(1997)The tectofugal pathway is a massive ascending polysynaptic pathway from the tectum to the thalamus and then to the telencephalon. In birds, the initial component of this pathway is known as the tectorotundal pathway; in ...
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(Elsevier Scientific Publishers Ireland Ltd., 1993-07-08)Two previously undescribed elemanolide esters, the 2-methylpropanoate and 2-methyl-2-propenoate of 11,13dehydromelitensin, were iso1ated in the course of a bioassay-guided fractionation from the aeria1 parts of ...
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(Natural Product Incorporation, 2017)Two new hygroline and tropane alkaloids, 4-hydroxybenzenepropanoylhygroline (1) and 3α,4β-dihydroxy-6β-angeloyoxytropane (2) have been isolated from the aerial parts of Schizanthus hookeri and S. tricolor, respectively, ...