The use of social network analysis by school librarians to evaluate and improve collaborative networks in their secondary schools: a pilot study

Thesis (Ph.D.) University of Alaska Fairbanks, 2018Social capital, in the form of relationships among teachers, results in sharing information and resources, which leads to improved student academic achievement. As schools continue to seek out ways to improve performance, social capital is often overlooked in favor of development of human capital in the form of professional development and training. Schools that have implemented collaborative groups have the potential to increase social capital, but often fail to structure the groups intentionally or evaluate their outcomes. School librarians in secondary schools often face challenges when it comes to collaboration. The job of a school librarian is inherently collaborative. To effectively serve the school's population, school librarians must understand the needs of their community. To teach information literacy skills, they must have access to students, typically via classroom teachers. Not surprisingly, collaboration between teachers and librarians is a major focus of both professional and research literature, yet librarians report it is one of their biggest challenges. Librarians are urged to start small, work with the teachers who are willing, and hope that others in the school will see the value of collaboration; in other words, build it and they will come. This research sought to determine if school librarians could use social network analysis as an evaluative and strategic planning tool. This study used a mixed-methods approach in a three-phase process to collect social network survey data in two secondary schools, develop the Social Network Analysis for School Librarians (SNASL) Process, and pilot test the process with the school librarians in the pilot schools using participatory analysis. Analysis revealed that the SNASL Process has the potential to enable school librarians to evaluate and improve upon the collaborative network of their school by identifying individuals in specific role positions and producing generative insight regarding the structure of the school network

Low-temperature saw damage gettering to improve minority carrier lifetime in multicrystalline silicon

The minority carrier lifetime in multicrystalline silicon − a material used in the majority of today's manufactured solar cells − is limited by defects within the material, including metallic impurities which are relatively mobile at low temperatures (≤700 °C). Addition of an optimised thermal process which can facilitate impurity diffusion to the saw damage at the wafer surfaces can result in permanent removal of the impurities when the saw damage is etched away. We demonstrate that this saw damage gettering is effective at 500 to 700 °C and, when combined with subsequent low-temperature processing, lifetimes are improved by a factor of more than four relative to the as-grown state. The simple method has the potential to be a low thermal budget process for the improvement of low-lifetime “red zone” wafers

Aprender la ciudad: relacionar sus espacios, conectar sus usuarios

1 archivo PDF (Tipo: Presentación) : principalmente ilustraciones en color ; 44 diapositivas. DUODECI

Toward a balanced relationship city-port : a strategic choice for the economy of the port and the quality of environment and urban life

1 archivo PDF (Tipo: Presentación) : principalmente ilustraciones en color ; 87 diapositivas.Se expone la importancia de la relación puerto y ciudad en escalas: global, regional y urbano, en las fases: integración, separación, conflicto y nueva integración los desafíos y recomendaciones. SUINOVE

"El agua urbana, protagonista del futuro de las ciudades"

1 archivo PDF (Tipo: Presentación) : principalmente ilustraciones en color ; 75 diapositivas. SUIUNDECIMA lo largo de la historia de la ciudad, y en particular de la ciudad europea, por muchos siglos, la presencia de los elementos naturales dentro el contexto urbano siempre ha sido muy importante, consiguiendo tener un protagonismo que se explicaba tan por sus valores concretos, funcionales, como por sus sentidos emblematicos, simbolicos, representativos

Bilbao-Zorrotzaurre: Una isla creativa para consolidar e innovar la política de centralidad de la intervención cultural en Bilbao [presentación]

La presentación se desarrolla en los siguientes contenidos: Bilbao: un marco urbano de intensa vitalidad; La capacidad de una ciudad de recuperarse y crear inéditos escenarios; El “caso Guggenheim” después de 20 años de actividad (1997-2017); El desafío de Zorrotzaurre, como “isla creativa”; La crisis de las áreas industriales metropolitanas en los años setenta afecta tanto a las ciudades europeas como a las norteamericanas. El factor desencadenante de este declive es la crisis en los sectores industriales tradicionales (acero, construcción naval, textiles, automóviles, etc.), junto con un desarrollo insuficiente del sector de servicios

Untersuchung der prozessabhängigen Ladungsträgerrekombination an Versetzungen in Siliziumsolarzellen

Die Dissertation demonstriert ein Verfahren zur Messung der normalisierten Rekombinationsstärke (Gamma) von Versetzungen in blockerstarrten Siliziumsolarzellen. Es basiert auf der topografischen Messung der internen Quanteneffizienz IQE und der Versetzungsdichte. Unter Verwendung des theoretischen Modells von Donolato und Simulationen mit dem Programm PC1D werden für einzelne Versetzungscluster aus dem gemessenen Zusammenhang zwischen der IQE und der Versetzungsdichte die Gamma-Werte bestimmt. Zur Messung der Versetzungsdichte wurden neue Methoden der automatischen Bildanalyse zur Erkennung von angeätzten Kristalldefekten mit dem Computer entwickelt. Die in den Solarzellen gemessenen Gamma-Werte variieren über ca. eine Größenordnung innerhalb weniger Millimeter. Regelmäßig angeordnete Versetzungen haben kleinere Gamma-Werte gegenüber ungeordneteren Verteilungen. Der Gamma-Wert korreliert signifikant mit den Prozesstemperaturen bei der Solarzellherstellung. Es wird gezeigt, in welcher Weise eine Remote-Plasma-Wasserstoffpassivierung die lokale IQE und die Gamma-Werte beeinflusst

Effects of HDAC 3 on the Development of Mammary Glands

Effects of HDAC 3 on the Development of Mammary GlandsYeatman Science Research Internship Fund,University of the South,Department of Cancer Biology at Vanderbilt Universit

PVcheck—A Software to Check Your Photovoltaic System

Having a photovoltaic (PV) system raises the question of whether it runs as expected.Measuring its energy yield takes a long time and the result still contains uncertainties from varyingweather conditions and possible shading of the modules. Here, a free software PVcheck to measurethe peak power of the system is announced, using the power data of a single sunny day. The softwareloads a data file of the generated power as a function of time from this day. This data file is providedby typical inverters. The software then simulates this power curve using known parameters like angleand location of the PV system. The assumed peak power of the simulation can then be adjusted sothat the simulated curve matches the measured one. The software runs under Microsoft Windows™and makes use of the free library pvlib python. The simulation can be refined by importing weatherdata like temperature, wind speed, and insolation. Furthermore, curves describing the nominalmodule efficiency as a function of the illumination intensity as well as the power-dependent inverterefficiency can be included in the simulation. First results reveal a good agreement of the simulationwith experimental data. The software can be used to detect strong problems in PV systems afterinstallation and to monitor their long-time operation.Solar Värmlan