Papers by ariana guerrero
El presente trabajo es un estudio desde la disciplina del diseno grafico, la comunicacion y la se... more El presente trabajo es un estudio desde la disciplina del diseno grafico, la comunicacion y la semiotica empleando pictogramas como medio comunicacional no verbal, en si mismo es una sintesis visual que funciona sin importar las barreras del lenguaje. Se abordan los usos de este recurso grafico en lo cotidiano y particularmente en este proyecto de diseno de recetario de herbolaria.
MRS Communications, 2021
The work presented here describes the efforts conducted in the past decade by the Polymer Extrusi... more The work presented here describes the efforts conducted in the past decade by the Polymer Extrusion Lab at The University of Texas at El Paso in the area of novel materials development for fused deposition modeling (FDM™)-type additive manufacturing platforms. We discuss efforts in the development of application-specific materials systems as well as the development of materials whose physical properties can be enhanced by FDM™-type processing. Additional efforts in the area of hybrid composite materials, sustainable materials, and shape-memory polymers are discussed. Aspects related to materials characterization are also highlighted.
Brazilian Oral Research, 2010
The aim of this study was to evaluate, in vitro, frictional forces produced by ceramic brackets a... more The aim of this study was to evaluate, in vitro, frictional forces produced by ceramic brackets and arch wires of different alloys. Frictional tests were performed on three ceramic brackets: monocrystalline (Inspire ICE), polycrystalline (InVu), polycrystalline with metal slot (Clarity), and one stainless steel bracket (Dyna-Lock). Thirty brackets of each were tested, all with .022" slots, in combination with stainless steel and nickel-titanium wires .019" × .025", at 0° and 10° angulation, in artificial saliva. Arch wires were pulled through the slots at a crosshead speed of 10 mm/min. There were statistically significant differences between the groups of brackets and wires studied (p < .05). The polycrystalline brackets with metal slots had values similar to those of conventional polycrystalline brackets, and the monocrystalline brackets had the highest frictional forces. The nickel-titanium wires produced the lowest friction. The addition of metal slots in the polycrystalline brackets did not significantly decrease frictional values. Nickel-titanium wires produced lower friction than those of stainless steel.
biblioteca.pucpr.br
... ORTODÓNTICOS DE DIFERENTES LIGAS Ariana Pulido Guerrero1 Sérgio Vieira2 ... observados com os... more ... ORTODÓNTICOS DE DIFERENTES LIGAS Ariana Pulido Guerrero1 Sérgio Vieira2 ... observados com os brackets metálicos.8 A incorporação de slots metálicos nos brackets cerâmicos, assim como o arredondamento dos ângulos das paredes do slot eo uso de glaze nas ...
American Journal of Orthodontics and Dentofacial Orthopedics, 2008
This study was developed to evaluate in vitro the properties related to sliding resistance of est... more This study was developed to evaluate in vitro the properties related to sliding resistance of esthetic ligatures. Methods: Frictional force of 6 ligatures-2 conventional, 2 specially coated elastomeric, Teflon-coated (Dupont, Wilmington, Del) stainless steel, and stainless steel (control) ligatureswere studied by sliding 0.019 x 0.025-in stainless steel wire through the 0.22-in slot of stainless steel bracket. Elastomeric ligatures were tested for frictional and tensile forces under 3 experimental conditions: recent stretching, after 21 days of simulated stretching in artificial saliva, and a demineralizing/remineralizing regimen. Statistical analysis was conducted with ANOVA and Games-Howell tests. Results: There was high correlation between frictional and tensile forces of elastomeric ligatures, with reduction of both after 21 days. The demineralizing/remineralizing regimen reduced the frictional forces of ligatures to the same level as the ligatures in artificial saliva. Teflon-coated and stainless steel ligatures showed the lowest initial frictional forces, but there was no difference in friction of stainless steel and poststretched elastomeric ligatures. Conclusions: Frictional forces generated by esthetic elastomeric ligatures under simulated oral environments are not stable and are more related to tensile force than to surface characteristics of the ligatures.
American Journal of Orthodontics and Dentofacial Orthopedics, 2008
Onychophagia, or nailbiting, is a common oral habit, observed in both children and adults. The et... more Onychophagia, or nailbiting, is a common oral habit, observed in both children and adults. The etiologies suggested for nailbiting include anxiety, stress, loneliness, imitation of other family member, heredity, inactivity, transference from a thumb-sucking habit, and poorly manicured nails. Treatment should be directed at the causes; punishment, ridicule, nagging and threats, and application of bitter-tasting commercial preparations on the nail are a variety of reminders, but are not appropriate approaches to treatment. The key to success is the nailbiter's consent and cooperation.
Annals of Global Health, 2015
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Papers by ariana guerrero