Changing My Perspective on Intelligence

This paper originates from a deep desire to understand how historic values of intelligence have led to our modern-day conceptions of intelligence. After only five years of teaching, I was drawn to this topic as I felt it was connected to the service I provide my students and the community in a position as a lead teacher, program coordinator and teacher\u27s aide. The question of the nature of intelligence and aptitude greatly impacts the feedback we offer students, intended for their intellectual growth and academic development. I attempt to distinguish myths from realities about how intelligence evolves and is measured, by exploring the works ranging from those of Alfred Binet and Lewis Terman, who founded intelligence testing, to the Instrumental Enrichment Program of Reuven Feuerstein (FIE), among other, more contemporary analysts and scholars such as Howard Gardner, Daniel Goleman, and Robert Sternberg. I address directly variations in our conceptions of intelligence and their influence on curriculum and teacher practice in the American classroom. My exposure to this topic began in the early part of my graduate career. Through the Critical and Creative Thinking program I have been faced with many challenges, including uprooting old assumptions about what intelligence really is. Inculcated by my family and in school, I believed the IQ test was the absolute measure of whether an individual was smart or not. None of my ideas acknowledged what the true plasticity of the mind was. I had not yet gained an understanding of the necessity for both critical thinking and a creative outlet. My goal in this Synthesis is to speak to fellow teachers, in elementary school and secondary education, to help them consider how outdated conceptions of intelligence still shape our impressions of what processes and knowledge are valuable in our classrooms. In the paper I incorporate alternatives to the mainstream teacher tools through FIE, so teachers can develop professionally and holistically and therein greatly enhance the success of their students. I propose that teachers must first acquire the skills necessary to be able to recognize potential in student work and encourage in them the habits of mind which will develop thoughtful, motivated students

Characterization of potato parents based on combining ability and heterosis for searching resistance to Phytophthora infestans

Controlar efectivamente a Phytophthora infestans, deviene de seleccionar genotipos con capacidad de transmitir resistencia. Con el objeto de caracterizar progenitores de papa en base a aptitud combinatoria y heterosis para resistencia a P. infestans, se cruzaron seis variedades (Libertas, Jaspe, Chotañawi, Pollerita, Robusta e INRA 92T.114.76). Quince familias de tubérculos de segunda generación clonal, obtenidas, fueron inoculadas con P. infestans en Balcarce (Buenos Aires, Argentina) y evaluadas bajo diseño en bloques completos aleatorizados con dos repeticiones. Se midió área bajo la curva del progreso de la enfermedad (AUDPC). Se estimó Aptitud Combinatoria (AC) general y específica, heterosis media, heterobeltiosis, heterosis específica (Hs) y heredabilidad en sentido amplio (H2) y estricto (h2). La AC fue significativa. El progenitor Robusta disminuyó la enfermedad estimada por AUDPC, el valor negativo grande de AC específica señaló mejor híbrido a Robusta x Chotañawi. Un tercio de las cruzas expresaron aditividad en todos los niveles de heterosis. Los valores de Hs manifestaron equivalencia con el porcentaje de disminución del AUDPC. Las heredabilidades (H2=0,63 y h2=0,54) indicaron que la selección por bajo AUDPC puede ser efectiva. El progenitor Robusta y la cruza Robusta x Chotañawi, conformaron los genotipos superiores recomendados para transferir resistencia a P. infestans.The efficient control of Phytopthora infestans results from the selection of genotypes with the capacity of transferring resistance. In order to characterize potato parents based on combining ability and heterosis for their resistance to P. infestans, six parents were crossed (Libertas, Jaspe, Chotañawi, Pollerita, Robusta and INRA 92T.114.76). The 15 tuber families of second clonal generation obtained were inoculated with P. infestans in Balcarce (Buenos Aires, Argentina) and evaluated under randomized complete block design with two replicates. Area Under Disease Progress Curve (AUDPC) was recorded for each genotype; general and specific combining ability, average heterosis, heterobeltiosis, specific heterosis and broad-sense (H2) and narrow (h2) heritability were estimated. Combining ability was significant. The Robusta parent reduced the disease estimated by AUDPC; Robusta x Chotañawi was the best hybrid, as observed by the high negative value of specific combining ability. One third of the crosses expressed significant additive effects for all levels of heterosis. Hs values showed equivalence with the percent reduction of AUDPC. The obtained heritabilities (H2=0.63 and h2=0.54) indicated that selection based on the low AUDPC values can be effective. Robusta parent and Robusta x Chotañawi cross are good genotypes for transmitting resistance to P. infestans.Fil: Andrade, Alberto Juan. Universidad Nacional de JujuyFil: Capezio, Silvia Beatriz.Fil: Huarte, Marcelo Atilio

Implementation of pressurized air injection system in a Kaplan prototype for the reduction of vibration caused by tip vortex cavitation

Blade tip cavitation is a well-known phenomenon that affects the performance of large-diameter Kaplan turbines and induces structural vibration. Injection of pressurized air has been found to yield promising results in reducing those damaging effects. In this work, the results of an experimental test of air injection on a 9.5-m-diameter Kaplan turbine are reported. Experiments were performed for several load conditions and for two different net heads. Accelerations, pressure pulsation and noise emission were monitored for every tested condition. Results show that, at the expense of a maximum efficiency drop of 0.2%, air injection induces a decrease on the level of vibration from 57% up to 84%, depending on the load condition. Such decrease is seen to be proportional to the air flow rate, in the range from 0.06 to 0.8‰ (respect to the discharge at the best efficiency point).Facultad de Ingenierí

Implementation of pressurized air injection system in a Kaplan prototype for the reduction of vibration caused by tip vortex cavitation

Blade tip cavitation is a well-known phenomenon that affects the performance of large-diameter Kaplan turbines and induces structural vibration. Injection of pressurized air has been found to yield promising results in reducing those damaging effects. In this work, the results of an experimental test of air injection on a 9.5-m-diameter Kaplan turbine are reported. Experiments were performed for several load conditions and for two different net heads. Accelerations, pressure pulsation and noise emission were monitored for every tested condition. Results show that, at the expense of a maximum efficiency drop of 0.2%, air injection induces a decrease on the level of vibration from 57% up to 84%, depending on the load condition. Such decrease is seen to be proportional to the air flow rate, in the range from 0.06 to 0.8‰ (respect to the discharge at the best efficiency point).Facultad de Ingenierí

Caracterización de progenitores de papa en base a aptitud combinatoria y heterosis para la búsqueda de resistencia a Phytophthora infestans

The efficient control of Phytopthora infestans results from the selection of genotypes with the capacity of transferring resistance. In order to characterize potato parents based on combining ability and heterosis for their resistance to P. infestans, six parents were crossed (Libertas, Jaspe, Chotañawi, Pollerita, Robusta and INRA 92T.114.76). The 15 tuber families of second clonal generation obtained were inoculated with P. infestans in Balcarce (Buenos Aires, Argentina) and evaluated under randomized complete block design with two replicates. Area Under Disease Progress Curve (AUDPC) was recorded for each genotype; general and specific combining ability, average heterosis, heterobeltiosis, specific heterosis and broad-sense (H2) and narrow (h2) heritability were estimated. Combining ability was significant. The Robusta parent reduced the disease estimated by AUDPC; Robusta x Chotañawi was the best hybrid, as observed by the high negative value of specific combining ability. One third of the crosses expressed significant additive effects for all levels of heterosis. Hs values showed equivalence with the percent reduction of AUDPC. The obtained heritabilities (H2=0.63 and h2=0.54) indicated that selection based on the low AUDPC values can be effective. Robusta parent and Robusta x Chotañawi cross are good genotypes for transmitting resistance to P. infestans.Controlar efectivamente a Phytophthora infestans, deviene de seleccionar genotipos con capacidad de transmitir resistencia. Con el objeto de caracterizar progenitores de papa en base a aptitud combinatoria y heterosis para resistencia a P. infestans, se cruzaron seis variedades (Libertas, Jaspe, Chotañawi, Pollerita, Robusta e INRA92T.114.76). Quince familias de tubérculos de segunda generación clonal, obtenidas, fueron inoculadas con P. infestans en Balcarce (Buenos Aires, Argentina) y evaluadas bajo diseño en bloques completos aleatorizados con dos repeticiones. Se midió área bajo la curva del progreso de la enfermedad (AUDPC). Se estimó Aptitud Combinatoria (AC) general y específica, heterosis media, heterobeltiosis, heterosis específica (Hs) y heredabilidad en sentido amplio (H2) y estricto (h2). La AC fue significativa. El progenitor Robusta disminuyó la enfermedad estimada por AUDPC, el valor negativo grande de AC específica señaló mejor híbrido a Robusta x Chotañawi. Un tercio de las cruzas expresaron aditividad en todos los niveles de heterosis. Los valores de Hs manifestaron equivalencia con el porcentaje de disminución del AUDPC. Las heredabilidades (H2=0,63 y h2=0,54) indicaron que la selección por bajo AUDPC puede ser efectiva. El progenitor Robusta y la cruza Robusta x Chotañawi, conformaron los genotipos superiores recomendados para transferir resistencia a P. infestans

Robot-Assisted Surveillance in Large Environments

This paper introduces ANSER, a mobile robot designed to perform surveillance in wide indoor and outdoor areas, such as civilian airports, warehouses or other facilities. The paper describes in details the robot subsystems, focusing on its capabilities in autonomous surveillance, localization and navigation

Behavior of local isolates of PVX and PVYN in the screening for resistance to potato virases X and Y

Los aislamientos de los virus X (PVX) e Y (PVY°) son utilizados para identificar genotipos resistentes en el mejoramiento genético de la papa. Dado que recientemente no ha sido hallado PVY° en las principales áreas productoras de papa de la Argentina, se experimentó su reemplazo por aislamientos locales de PVX y PVYN. Estos se seleccionaron por los síntomas severos que inducía su presencia simultánea en el cv. Spunta. PVX se aisló mediante transmisión mecánica a Datura stramonium y PVYm por transmisión a tabaco cv. Samsun mediante Myzus persicae. La aptitud de estos aislamientos para la identificación de genotipos resistentes se comparó con la de PVX y PVY° provenientes del Uruguay. Ambos inóculos se prepararon mezclando el jugo extraído de 2 g de hojas de Nicotíana glutinosa que contenía uno de los aislamientos de PVX con el jugo extraído de 2 g de hojas de Nicotiana occidentalis, portadora del aislamiento de PVY. Estas mezclas se diluyeron en 100 ml de agua con 5 g de carburo de silicio de 600 mallas. La inoculación se efectuó con aerógrafo a 1,8 kg.cm2 de presión, desde un centímetro de distancia de las hojas, hasta notar su infiltración. Los aislamientos locales indujeron síntomas en el 33 % de tas plántulas de cada familia y los introducidos en el 21 %, para un total de 1969 y 1986 plántulas, respectivamente. La diferencia en favor de los aislamientos locales fue altamente significativa. La utilización de estos aislamientos disminuye el riesgo de difusión de otras razas y selecciona genotipos resistentes a las prevalentes en el país.Isolates of potato virus X (PVX) and potato virus Y (PVY), of the «common strain» group (PVY°), are generaliy used in the screening for resistance in potato breeding programs. Since PVY° strains have not been iateiy found in the main potato growing areas of Argentina, they were experimentaiiy irepiaced by local isolates of PVX and PVY11. These isolates, obtained in the southeast area of the province of Buenos Aires, were selected because of the severe symptoms they induced when tney were simuitaneousiy present in potato piants of cv. Spunta. PVX was isolated by mechanical transmission to Datura stramonium and PVY" by Myzus pérsicas transmission on tobáceo cv. Samsun. The aptitude of these isolates for the screening of resistant genotypes was compared with that of PVX and PVY° from the Uruguayan Breeding Program. Each inoculum was prepared by mixing the juice extracted from 2 g of Nicotiana glutinosa leaves containing one of the PVX isolates with that extracted from 2 g of leaves of Nicotiana occidentalis that carríed the corresponding PVY isolate. These mixtures were then diluted in 100 mi water and 5 g of Silicon Carbide 600 imesh were added. Inoculation was performed by spraying with an airbrush, positioned 1 cm away from the plantlets, at a pressure of 1.8 kg.cm*2. Piantlet leaves were sprayed until water soaking of the leaves was evident. Local isolates induced conspicuous symptoms in 33 % of the plantlets of each famiíy, whereas the foreign ones induced symptoms in 21 % of them, from a total of 1969 and 1986 plantlets, respectively. The difference was higniy significant. It is concluded that the local isolates were more efficient for the screening of resistant genotypes than the foreign ones. They also have the advaniages of diminishing the irisk of diffusion of exotic strains and of seiecting genotypes resistant to the prevaíent type of strains in our potato area.Facultad de Ciencias Agrarias y Forestale