EVAPOTRANSPIRACIÓN Y COEFICIENTE DE CULTIVO EN CHILE BANANA (Capsicum annuum L.) EN EL VALLE DEL YAQUI, MÉXICO

Durante el ciclo invierno-primavera de 2008 se realizaron experimentos simultáneos para determinar y modelar la evapotranspiración (ET) de varios cultivos en el Valle del Yaqui, México. Uno de estos cultivos fue chile banana (Capsicum annuum L.) bajo acolchado y protegido con Agribon. La técnica para medición de ET fue la correlación turbulenta (EC). Los resultados mostraron que el Agribon, además de proteger al cultivo contra bajas temperaturas, plagas y enfermedades, redujo fuertemente la ET, misma que se incrementa en un 57 % posterior al retiro de esta película. Altos valores de humedad relativa (HR) persistieron durante todo el periodo de estudio. Los máximos medidos de ETc, fueron 5,5 mm día-1y 4,0-5,0 mm día-1, antes y durante la cosecha, respectivamente. El coeficiente de cultivo (Kc) previo a la cosecha alcanzó valores cercanos a 1, para mantenerse posteriormente entre 0,80 y 0,90

Mediciones de metano y bióxido de carbono usando la técnica de covarianza de vórtices en ganado lechero semiestabuldado en Sonora, México

La agricultura (incluyendo ganadería) es considerada como una de las principales fuentes de gases efecto invernadero. Por lo cual, el monitoreo de los gases efecto invernadero (GEI) en dicha actividad es necesario para lo cual existen diversas metodologías. La técnica de covarianza de vórtices es una de ellas permitiendo el análisis de GEI de manera continua. Acuerdo con esto, se planteó la instalación y evaluación de un sistema GHG-2 para el monitoreo de CH4 y CO2 en un hato lechero en un sistema semi-estabulado en Sonora. Los resultados muestraron que el GHG-2 permite evaluar el comportamiento continuo de los flujos CH4 y CO2 observándose picos de ambos gases cuando el ganado estuvo presente. Asimismo, permitió corroborar la existencia de una alta correlación relación entre ambos GEI (CH4:CO2), similares a estudios previos, lo que permite utilizar esta razón para estimar las emisiones de metano en forma indirecta a través de balances energéticos para calcular CO2. Una de las limitaciones de esta técnica en sistemas confinados o semiconf inados es la presencia de material particulado en la atmósfera que obliga a una supervisión y mantenimiento frecuente; así como el alto consumo de energía, lo cual obliga a considerar en el proyecto un adecuado suministro de fluido eléctrico mediante paneles solares y acumuladores, si no se cuenta con una fuente continua de electricidad

Replication Data for: The Efficacy of Deliberative Democracy

Replication data for Chris Celaya's dissertatio

Replication Data for: The Efficacy of Deliberative Democracy

Replication data for Chris Celaya's dissertatio

The Efficacy of Deliberative Democracy

Social, political, and academic programs that leverage deliberative democratic procedures are lauded for their ability to increase participant knowledge, sophistication, and efficacy. Myriad studies link deliberative programs to increases in these measures, but two major questions remain in the deliberative democracy literature. First, do these types of programs have an impact beyond the effects on those who participate? And second, does the deliberation itself lead to these increases, or some other facet of the associated program? The three projects that comprise this dissertation are an early, and in some ways first, step toward answering these questions. In the first, I observed two promising deliberative programs for their potential political impact and conducted elite interviews with program directors and founders, political officials, and social activists, finding some evidence that these programs can moderately affect political decisions, but that they are much more capable of setting the political agenda and shaping ideology, the second and third faces of power. These observations also revealed an important clue about why differently designed deliberative programs lead to different outcomes in the above measures for participants; deliberators seemed to gain at least as much knowledge from engagement with experts as with fellow deliberators. I conducted a large laboratory experiment to test these two treatments and found, somewhat counterintuitively, that a Q&A session with experts outperformed pure deliberation for increasing knowledge, sophistication, and efficacy, and that deliberation never outperformed the Q&A. Moreover, the Q&A also dramatically outperformed an information-packet only control group, suggesting that the effects ascribed to deliberation were being misattributed. Given that these were counterintuitive results, in the third project I triangulated on them using a different methodological approach: in-depth participant interviews, qualitative survey analysis, and more observational research. I confirmed that most learning is attributed to engagement with experts, and that almost no knowledge or efficacy increases are attributed to deliberation. There is some evidence that participants made more sophisticated decisions after deliberating, but participants almost unanimously ascribed these decisions to participants with extant knowledge creating a “wisdom of the multitude” effect rather than being caused by deliberation itself.Governmen

The relevance of source and level of support of media narratives on vote preference for Trump

We will run a survey experiment where we show research subjects one of six fabricated news articles or a control condition where they see no news articles. These articles will either presumptively come from Beritbart or Politico, and they will either be supportive, neutral, or accusatory toward Donald Trump's handling of the coronavirus. We collect several measures about support for various candidates for the 2024 presidency, affective polarization toward both elites and peers, past presidential job and issue approval, and feelings about the events of January 6th

Replication Data for: The Effect of Segregation on Intergroup Relations

Replication files for Enos, Ryan D. and Christopher Celaya. "The Effect of Segregation on Intergroup Relations,"Journal of Experimental Political Science