Publications by authors named "B Bella Burgos"

6 Publications

Genetic Characterization of an Endangered Chilean Endemic Species, Muñoz, Reveals its Hybrids Parentage.

Plants (Basel) 2020 Jun 12;9(6). Epub 2020 Jun 12.

Instituto Nacional Forestal (INFOR), Sede Metropolitana y Sede Diaguita, 1760000 Diaguitas, Chile.

The hybridization of , a critically endangered endemic species, and the identification of its paternal species has not been genetically studied before. In this study we aimed to genetically confirm the origin of this species. To resolve the parental status of , inter-simple sequence repeat (ISSR), simple sequence repeats (SSR) and intron molecular markers were used, and compared with Chilean species from the and sections. Out of seven ISSRs, a total of 70 polymorphic bands were produced in four species of the section. An Multi-dimensional scaling (MDS) and Bayasian (STRUCTURE) analysis showed signs of introgression of genetic material in . Unweighted pair group method with arithmetic average (UPGMA) cluster analysis showed three clusters, and placed the cluster nested within the group. Sequencing of the intron showed a fragment of 535 bp and 529 bp in the species of the and sections, respectively. Using maximum parsimony (MP) and maximum likelihood (ML) trees with the intron, revealed four clusters. A species-specific diagnostic method was performed, using the intron Single Nucleotide Polymorphism (SNP). This method identified if individuals of inherited their maternal DNA from or from . We deduced that and are involved in the formation of .
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http://dx.doi.org/10.3390/plants9060744DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7355918PMC
June 2020

Power Testing in Basketball: Current Practice and Future Recommendations.

J Strength Cond Res 2018 Sep;32(9):2677-2691

School of Health, Medical and Applied Sciences, Central Queensland University, Rockhampton, Australia.

Wen, N, Dalbo, VJ, Burgos, B, Pyne, DB, and Scanlan, AT. Power testing in basketball: Current practice and future recommendations. J Strength Cond Res 32(9): 2686-2700, 2018-Numerous foundational movements performed during basketball are predicated on underlying power-related attributes, including speed, change-of-direction (COD), and jumping. Accordingly, fitness testing batteries for basketball have incorporated an assortment of linear speed tests, COD tests, and jump tests. However, because of the wide variety of testing options, it is difficult for basketball practitioners to select appropriate testing protocols for the assessment of power-related attributes. As a result, there is a need to review the relevant literature to identify game-specific, power-related attributes important in basketball and the most appropriate tests available to assess power-related attributes for basketball practitioners. Therefore, the aims of this review were to: (a) identify essential power-related attributes important in basketball; (b) discuss the suitability of common and novel power-related tests; and (c) provide recommendations for future research and best practice approaches for basketball coaching staff. In this review, we propose a series of novel tests that are more targeted and specific to basketball movements including: (a) 5- and 10-m linear sprints, (b) modified agility T-test, (c) change-of-direction deficit (CODD), (d) lateral bound, (e) Sargent jump, (f) one-step jump, and (g) isometric midthigh pull test. Improved testing of power-related attributes should enable basketball practitioners to develop targeted training plans for enhancing player performance.
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http://dx.doi.org/10.1519/JSC.0000000000002459DOI Listing
September 2018

Fragmentation of magnetism in artificial kagome dipolar spin ice.

Nat Commun 2016 05 13;7:11446. Epub 2016 May 13.

CNRS, Inst NEEL, F-38000 Grenoble, France.

Geometrical frustration in magnetic materials often gives rise to exotic, low-temperature states of matter, such as the ones observed in spin ices. Here we report the imaging of the magnetic states of a thermally active artificial magnetic ice that reveal the fingerprints of a spin fragmentation process. This fragmentation corresponds to a splitting of the magnetic degree of freedom into two channels and is evidenced in both real and reciprocal space. Furthermore, the internal organization of both channels is interpreted within the framework of a hybrid spin-charge model that directly emerges from the parent spin model of the kagome dipolar spin ice. Our experimental and theoretical results provide insights into the physics of frustrated magnets and deepen our understanding of emergent fields through the use of tailor-made magnetism.
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http://dx.doi.org/10.1038/ncomms11446DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4869173PMC
May 2016

Size distribution of magnetic charge domains in thermally activated but out-of-equilibrium artificial spin ice.

Sci Rep 2014 Jul 16;4:5702. Epub 2014 Jul 16.

Institut Jean Lamour, Université de Lorraine and CNRS, Vandoeuvre lès Nancy, F-54506, France.

A crystal of emerging magnetic charges is expected in the phase diagram of the dipolar kagomé spin ice. An observation of charge crystallites in thermally demagnetized artificial spin ice arrays has been recently reported by S. Zhang and coworkers and explained through the thermodynamics of the system as it approaches a charge-ordered state. Following a similar approach, we have generated a partial order of magnetic charges in an artificial kagomé spin ice lattice made out of ferrimagnetic material having a Curie temperature of 475 K. A statistical study of the size of the charge domains reveals an unconventional sawtooth distribution. This distribution is in disagreement with the predictions of the thermodynamic model and is shown to be a signature of the kinetic process governing the remagnetization.
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http://dx.doi.org/10.1038/srep05702DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4100542PMC
July 2014

Short day-photoperiod triggers and low temperatures increase expression of peroxidase RNA transcripts and basic peroxidase isoenzyme activity in grapevine buds.

Phytochemistry 2007 May 6;68(10):1376-83. Epub 2007 Apr 6.

Universidad de Chile, Facultad de Ciencias, Laboratorio de Bioquímica Vegetal, Casilla 653, Santiago, Chile.

Expression of peroxidase (Prx) RNA transcripts was studied in grapevine cv. Thompson seedless through use of semi-quantitative RT-PCR. In roots, the three Vitis vinifera Prx ESTs, reported in the genomic facility database from the University of California (http://cgf.ucdavis.edu), were expressed as RNA transcripts, and three Prx isoenzymes, two basic (PrxB1) and (PrxB2) and a neutral Prx isoenzyme (PrxN1), were detected in root extracts. In buds, although one Prx EST (CB923206) was detected as a RNA transcript, three Prx activities were found in its extract, these same being the two basic isoenzymes found in the roots, and an acidic one (PrxA1) as well. In field grown grapevines, Prx RNA transcript was expressed transiently during bud endodormancy (ED) while under controlled conditions in a growth chamber, a short day (SD) photoperiod triggered expression of the Prx transcript in bud cuttings; low temperature, enhanced its expression level. Because environmental cues that trigger and enhance Prx RNA transcript expression in bud-tissue are the same as those that induce bud-ED in Vitis, the transient expression of Prx EST (CB923206) identified in buds could signal the full extent of ED in grapevines.
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http://dx.doi.org/10.1016/j.phytochem.2007.02.003DOI Listing
May 2007
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