RSS 1.0Colleges, Departments, and Organizations
ABOUT THE COLLECTIONS
Several University of Arizona organizations, such as colleges, departments, research and administrative groups, have established collections in the UA Campus Repository to share, archive and preserve unique materials.
These materials range from historical and archival documents, to technical reports, bulletins, community education materials, working papers, and other unique publications.
QUESTIONS?
Please contact Campus Repository Services personnel repository@u.library.arizona.edu with your questions about items in these collections, or if you are affiliated with the University of Arizona and are interested in establishing a collection in the repository. We look forward to working with you.
Sub-communities within this community
Recent Submissions
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Demonstrating Inclusion and Allyship: Amplifying an Indigenous Voice Through Physical and Digital ExhibitionIn this chapter, I discuss how I displayed resources to help promote the knowledge that the Navajo people have “always had the rule of law” and to amplify the Navajo writer, Joseph K. Austin, behind that knowledge.3 To support and demonstrate the need for further inclusion, I provide a literature review of scholarship and detail the genesis of the physical and digital exhibits I curated from the works cited by Austin in his article, “The Words of the Talking God: Building and Sustaining Native Nations Through the Common Law.” I describe my collaboration with Austin and other colleagues from my law library and discuss how future collaboration is sustainable.
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(Hidden) in Plain Sight: Migrant Child Labor and The New Economy of ExploitationMigrant child labor pervades supply chains for America’s most beloved household goods including Cheerios, Cheetos, Lucky Charms, J. Crew, and Fruit of the Loom. Migrant children, some as young as twelve and thirteen, de-bone chicken sold at Whole Foods, bake rolls found at Walmart and Target, and process milk used in Ben & Jerry’s ice-cream. Most work grueling shifts, including overnight and over twelve-hour days, and some, working in extremely hazardous jobs such as roofing and meat processing, have died or suffered serious, permanent injuries. When their heartbreaking stories were revealed in an exposé by New York Times investigative journalist Hannah Drier, the nation was stunned. Since then, however, very little has changed. This is unsurprising given that responses to the crisis focus mainly on enhancing enforcement and increasing penalties under existing child labor laws. But these reforms will not help the migrant children at the heart of this crisis. Indeed, these so-called solutions threaten to make the situation worse for these children, many of whom are unaccompanied minors and have no choice but to work. Existing child labor laws and the historical premises underlying them cannot address the entrenched and overwhelming problem of contemporary, migrant child labor. Instead, a new legal framework is needed. This paper is the first to analyze the current crisis and argue that recommending effective solutions requires considering unaccompanied minors’ experiences as children, migrants and low-wage workers. Drawing from the theory of work primacy and international child labor literature, this paper charts a multifaceted course that might realistically address the predicament of migrant child workers who are precariously perched at the intersection of migration and labor.
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Información de germinación para especies comunes de restauración de ArizonaLa restauración ecológica basada en semillas es un enfoque utilizado para revegetar hábitats dañados y perturbados mediante la dispersión de semillas con la expectativa de que ocurra la germinación y las plantas se establezcan y prosperen. Aunque la restauración puede mejorar la salud y productividad de los paisajes al revitalizar los servicios ecosistémicos tanto directa como indirectamente, lograr una restauración exitosa es difícil de lograr, especialmente en sistemas áridos (Copeland et al., 2018). La germinación es un cuello de botella bien conocido para el crecimiento de las plantas que dificulta una restauración exitosa (James et al., 2011).
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Jardinería con niños en educación preescolar y centros de educación y en aulasLos jardines proporcionan un entorno de aprendizaje práctico para involucrar a los niños pequeños. Si bien requieren cierta planificación y recursos para construir y mantener, incorporar actividades de jardinería en su aula o centro de educación infantil puede ser gratificante para los maestros y niños. A continuación, proporcionamos sugerencias para planificar un jardín, actividades de jardinería y cómo utilizar las actividades de jardinería para promover el aprendizaje y el desarrollo.
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Utilizando plantas nativas para controlar el zacate buffelIntegrar la restauración activa en un plan de tratamiento de especies invasoras mediante la siembra o plantación de especies nativas que puedan suprimir competitivamente a un invasor puede ayudar a mejorar los resultados del manejo de malezas. Esto ocurre porque las plantas nativas pueden tener rasgos (métodos de acceso a recursos) que se superponen con los invasores, restringiendo a estos últimos de aprovechar recursos como la luz y el espacio. Sin embargo, la eficacia de este enfoque suele estar modificada por la disponibilidad de agua. Esto se debe a que las plantas pueden responder a cambios en la disponibilidad de agua modificando rasgos, como la densidad y tamaño de las raíces (biomasa), afectando posteriormente la magnitud en la que pueden competir con los invasores (Potts et al., 2019). Identificar rasgos de especies nativas que sean competitivas contra especies invasoras en sistemas de tierras secas con disponibilidad variable de agua puede ayudar a mejorar los resultados del control de malezas.
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Sobresembrando cespedes de invierno en césped bermudaEn el desierto de baja altitud de Arizona, los céspedes de temporada cálida (césped bermuda, césped zoysia y césped San Agustín) entran en estado de dormancia y típicamente pierden su color verde durante el invierno. La sobresiembra de césped bermuda con un césped de temporada fría proporciona un césped verde durante todo el año. Un césped invernal sobresembrado proporciona un paisaje estético y funcionalmente ofrece un césped recreativo.
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Zonas climáticas de Arizona y su aplicación en el cultivo de plantasLas plantas crecen mejor en climas a los que están más adaptadas. Conocer la zona climática de una ubicación es uno de los factores para cultivar con éxito plantas al aire libre. Mientras que el suelo, el agua y la luz son críticos, las temperaturas bajas o altas pueden limitar el crecimiento de las plantas en una ubicación específica. Arizona es un estado grande que abarca 335 millas de este a oeste y 390 millas de norte a sur, con diversas zonas climáticas. El clima está influenciado por la elevación, que determina las temperaturas altas y bajas, y por la precipitación, que varía en todo el estado. La precipitación varía desde 3 pulgadas anuales en Yuma, en la esquina suroeste de Arizona, hasta más de 30 pulgadas en las áreas montañosas. El clima de Arizona se clasifica como árido o semiárido porque la evapotranspiración, la pérdida combinada de agua del suelo y las plantas en una ubicación, es mayor que la cantidad de lluvia que recibe el área.
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Foundations of Virtual Fencing: Training and Animal WelfareIn Arizona and other western states, ranchers and land managers rely on thousands of miles of permanent wire fencing to manage livestock on extensive rangelands (Hayter 1939; Netz 2004). This type of fencing has improved rangeland conditions in many places by aiding in the application of grazing systems (Holecheck et al. 2011). However, wire fencing can fragment landscape connectivity, pose a risk to wildlife, and is a major financial investment. Moreover, it offers limited flexibility in adjusting pasture size, actively manipulating grazing distribution, or avoiding high-use areas or sensitive habitats within a pasture (Jakes et al. 2018).
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Foundations of Virtual Fencing: The Vital Role of High-Quality GIS DataIn Arizona and other western states, ranchers and land managers rely on thousands of miles of permanent wire fencing to manage livestock on extensive rangelands(Hayter, 1939). This type of fencing has led to improved rangeland conditions in many places by aiding in the application of grazing systems. However, wire fencing can fragment landscape connectivity, pose a risk to wildlife, is a major financial investment, and provides little to no flexibility to rapidly change pasture size, manipulate grazing distribution, or avoid areas of high use or sensitive habitat within a pasture (Holechek et al., 2011; Jakes et al., 2018). As a result, there are constraints on the use of permanent fences as a tool for managing riparian health, post-fire vegetation recovery, or improving livestock distribution. While electric fencing can be used to address some of these problems (Barnes and Howell, 2013), electric fencing can be hard to implement across large pastures and requires a significant time investment to setup and move. Virtual fence (VF) technology is an emerging precision livestock management tool used to address these limitations and increase management flexibility and adaptive capacity to respond to changing.
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Cover Crops and Carbon Sequestration: A Perspective for Desert SoilsThe nature of agriculture has always been evolving with the needs of the people. As a result of the public’s concern over climate change, conservation strategies like cover cropping have been investigated to note any ecosystem services they may provide, allowing those in the industry to tally their many benefits. On a regional scale, cover crops may improve soil health and quality, additionally contributing to soil conservation; globally, cover crops may aid carbon sequestration and reduce greenhouse gas emissions. The importance of arid agriculture in this context cannot be overlooked. Many researchers, policymakers, and agricultural stakeholders in the US Desert Southwest have begun to realize that though cover crops may not be suitable for green manuring in the region due to strict water budgets, they may, however, be suitable for use as alternative forage crops to fetch additional economic gains while acting as physical barriers to prevent soil erosion and support beneficial ecosystem services ultimately improving soil health in desert agroecosystems.
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Guidance for Soil Moisture Sensor Selection: Market Analysis and Decision-Making StrategiesMonitoring soil moisture content is a critical aspect of effective irrigation scheduling. Maintaining optimal soil moisture levels is essential for plant growth and crop yield. Soil moisture monitoring can be accomplished through various methods, including the use of capacitance sensors that measure dielectric properties for volumetric water content assessments. Alternatively, traditional methods such as gravimetric sampling, primarily utilized in research, require weighing soil samples before and after drying to determine moisture content. These methods provide valuable insights for irrigation management, helping growers optimize water use and enhance crop productivity (Gu et al., 2020).
