8,988 research outputs found
Raise Your Profile: Build Your Program
To raise the library\u27s profile within the campus community, it is critical to create a strategic plan and align library goals with those of the university. At George Washington University\u27s Gelman Library, the instruction librarians gained internal and external support to hire two new instruction librarians to better support collaboration with the new university writing program. The library then used assessment data to successfully advocate for an additional two positions
Response of Oat to Chloride Fertilization
Several studies conducted in South Dakota have shown significant yield increases in wheat and barley due to chloride (Cl) fertilization. The effects of Cl on oat were evaluated in the greenhouse and two field experiments. Five cultivars and 3 KC1 fertilizer levels (0, 58, and 117 Kg ha-1) were tested in a factorial arrangement. In a second experiment, five N fertilizer levels (0, 34, 68, 102, 136 kg ha-1) and 2 KC1 fertilizer levels (0 and 135 kg ha-1) on oat (Benson) were tested in a factorial arrangement. The greenhouse study had 4 levels of Cl (0, 10, 20, and 40 mg 1-1) and two watering schedules (non-restricted and restricted). The objectives were: (a) determine if oat cultivars respond to Cl fertilization, (b) examine the effect of Cl on plant water relations (c) examine the relationship between Cl fertilization and crown rust infection, (d) evaluate the effected df N and Cl fertilization on grain yield and lodging, and (e) evaluate the antagonism between N03- and Cl- uptake. Chloride addition significantly increased oat grain yield at some sites. The addition of 32 kg. Cl ha1- gave near maximum oat grain yield. At the Cl responsive sites
Revised Coordinates and Proper Motions of the Stars in the Luyten Half-Second Catalogue
We present refined coordinates and proper motion data for the high proper
motion (HPM) stars in the Luyten Half-Second (LHS) catalogue. The positional
uncertainty in the original Luyten catalogue is typically >10" and is often
>30". We have used the digital scans of the Palomar Observatory Sky Survey
(POSS) I and POSS II plates to derive more accurate positions and proper
motions of the objects. Out of the 4470 candidates in the LHS catalogue, 4323
objects were manually re-identified in the POSS I and POSS II scans. A small
fraction of the stars were not found due to the lack of finder charts and
digitized POSS II scans. The uncertainties in the revised positions are
typically ~2", but can be as high as ~8" in a few cases; this is a large
improvement over the original data. Cross-correlation with the Tycho-2 and
Hipparcos catalogues yielded 819 candidates (with m_R < 12). For these brighter
sources, the position and proper motion data have been replaced with the more
accurate Tycho/Hipparcos data. In total, we have revised proper motion
measurements and coordinates for 4040 stars and revised coordinates for 4330
stars, which are presented here.Comment: 108 pages. Accepted for Publication in ApJ Suppl. Some errors caused
by the transcription errors in the original LHS catalogue have been corrected
in this resubmission. The most current version of the catalogue is also
available online at http://www.stsci.edu/~ksahu/lh
De-Americanizing Viet Nam: The Representation of the “Vietnam War” in Viet Thanh Nguyen’s The Sympathizer
[Abstract] Since the end of the war in Viet Nam in 1975, we, as a society, have been exposed to an American narrative that has manipulated our view of the conflict. We have been led to believe that the Vietnamese conflict was an American tragedy rather than a devastating war with a colonial background and fought on Southeast Asian soil. The purpose of this undergraduate thesis is first, to analyze the succession of events that resulted in the war in Viet Nam and the American participation in the same, and second, to examine how, after their non-defeat, Americans began controlling the story behind the war, releasing literary and cinematographic representations that placed Americans as the rightful victims of the war. In an attempt to redress such manipulation, I will employ Viet Thanh Nguyen’s novel The Sympathizer, published 40 years after the end of the conflict, as an example of a de-Americanized version of the war in Viet Nam, that is, a fictional version that portrays the war as, first and foremost, a Vietnamese conflict and tragedy. The aim of this analysis is to demonstrate how susceptible society is to believe the version of the story publicized by the country with more power and how influential America has been in creating misconceptions about Viet Nam and its war.Traballo fin de grao (UDC.FIL). Inglés: estudios lingüísticos y literarios. Curso 2017/201
A avaliação na educação pré-escolar e a utilização do portefólio
A comunicação que apresentamos, resulta de um estudo de caso realizado com Educadores de Infância, no âmbito da Dissertação de Mestrado em Ciências da Educação, área de especialização de Desenvolvimento Curricular.
Ao longo das últimas décadas, devido às mudanças e transformações sociais, as concepções em relação à educação pré-escolar alteraram-se significativamente e começou a sentir-se uma necessidade permanente de instituições onde as crianças pudessem ficar em segurança e recebessem os cuidados primordiais ao seu pleno desenvolvimento e formação. Por estas razões, a educação pré-escolar conquistou um lugar de destaque no meio educativo o que conduziu à redacção de documentos oficiais que apoiam e ajudam os educadores a planificar e a desenvolver a prática pedagógica.
Assim, a problemática central do nosso estudo é compreendermos como é que os educadores avaliam as crianças na educação pré-escolar e se os educadores de infância recorrem ao portfolio para avaliarem as crianças.
Os nossos principais objectivos investigação são: conceptualizar o conceito de avaliação na educação pré-escolar, bem como, identificar e caracterizar as principais práticas avaliativas utilizadas pelos educadores de infância para avaliarem as aprendizagens significativas adquiridas pelas crianças e o seu desenvolvimento; compreender se os educadores recorrem à construção de portfolios para a avaliação das crianças na educação pré-escolar; identificar as razões da utilização de portfolios e reconhecer/identificar os conteúdos considerados relevantes pelos educadores na construção de portfolios. Para tal, recorremos a um estudo de tipo qualitativo, através da realização de entrevistas semi-directivas a educadores de infância de quatro instituições diferentes: 2 da rede pública e 2 da rede privada da educação pré-escolar.
Do estudo realizado, ressaltamos como principais conclusões que a avaliação actualmente é uma prática diária na educação pré-escolar. Através dela os educadores observam a evolução das crianças e as suas necessidades. Também concluímos que os educadores recorrem a diferentes instrumentos de avaliação. No que diz respeito ao portfolio, poderemos dizer que, cada vez mais, os educadores recorrem a este instrumento de trabalho e de avaliação na sua prática pedagógica. Porém, a grande maioria dos entrevistados evidencia muitas dúvidas sobre a sua forma de elaboração/organização, bem como, quais os principais conteúdos que deve conter neste nível de ensino. Isto demonstra-nos que seria importante e necessário existir formação específica sobre este instrumento como meio de trabalhar e evidenciar as aprendizagens das crianças.The communication we present results from a case study done with infant teachers, in the context of the Education Science Master Degree’s Essay, Curricular Development’s specialized area.
Through the last decades, due to the changes and social transformations, the conceptions related to pre-school education changed significantly and a permanent need of institutions where children could stay safety and receive the primary cares to their development and education has been started to feel. For those reasons, pre-school education conquered a spot line in the educational environment, which leads to the production of official documents that support and help teachers to plan and develop the pedagogical practice.
Therefore, the main subject of our study is to understand how infant teachers evaluates children in pre-school education and if they use the portfolio in order to do that. The main goals of the investigation are: to conceptualize the assessment concept in pre-school education, as well as identify the main evaluative practices used by infant teachers to evaluate the significant learning acquired by children and their development; to understand if infant teachers use portfolios in order to evaluate children in pre-school education; identify the reasons to the use of the portfolio and recognize/identify the contents that are considered relevant by infant teacher in the portfolio. Therefore, our goal is to conceptualize the assessment concept in pre-school education, as well as identify the main evaluative practices used by infant teachers to evaluate the significant learning acquired by children and their development. In order of that, we have developped a qualitative type study, through the realization of semi-directed interviews to infant teachers of four different institutions: 2 from the public network and 2 from the private network of pre-school education.
The main conclusions taken from the study is that, nowadays, evaluation is an everyday practice in pre-school education. Through it, infant teachers monitor children evolution and their needs. We also conclude that infant teachers use different evaluation tools. About the portfolio, we can say that infant teachers use more and more this instrument of work and evaluation in their pedagogical practice. However, the great majority of the interviewed showed many doubts about their production/organization way, as well as what are the main contents that this level of education should include. This shows us that it would be important and necessary to have specific specialization about these instruments as a way of working and show children learning
Rapidly solidified titanium alloys by melt overflow
A pilot plant scale furnace was designed and constructed for casting titanium alloy strips. The furnace combines plasma arc skull melting techniques with melt overflow rapid solidification technology. A mathematical model of the melting and casting process was developed. The furnace cast strip of a suitable length and width for use with honeycomb structures. Titanium alloys Ti-6Al-4V and Ti-14Al-21 Nb were successfully cast into strips. The strips were evaluated by optical metallography, microhardness measurements, chemical analysis, and cold rolling
Edible films and coatings based on agrifood residues: A new trend in the food packaging research
Food packaging trends have been changing in the last years, mainly due to consumer concerns about plastic pollution and agrifood waste. Recent advances in the development of edible films and coatings are discussed. These systems can be much more than packaging, with additional functions such as antioxidant, antimicrobial, and nutritional properties, among others. Challenges in industrial processes and/or in some films’ properties are addressed from the authors’ point of view. The use of agrifood residues in these packaging systems is included as a promising strategy that promotes sustainability and circular economy. The authors consider that more research and actions are needed to achieve the best packaging material for each food product with reduced production costs.info:eu-repo/semantics/publishedVersio
Effects of Temperature on the Toxicity to the Aquatic Biota of Waste Discharges - A Compilation of the Literature
An extensive compiliation and general evaluation of the literature is presented which describes the temperature interaction with toxicity. Recent literature is summarized and made accessible along with a few generalized relationships such that researchers may design studies in a manner that will increase the utility of their results. A detailed indexing system is employed which makes the information contained in the report accessible by author, toxicant, and text organism. Summary tables of the most pertinent literature are also presented for easy subject retrieval. It was concluded that very little uniformity in experimental design is found between experiments on temperature-toxicity relationships, and a generalized summary of the results presented in th eliterature is essentially impossible because of the inconsistencies in experimental designs. The utilization of standard bioassay procedures is highly recommened, and these procedures should be applied to experimental designs which allow the estimation of parameters related to the theoretical effects of temperature
Comportamiento en fluencia de un material compuesto de matriz metálica Al6061-15 vol % SiCw pulvimetalúrgico
Se ha realizado un estudio de las propiedades en fluencia del material compuesto pulvimetalúrgico Al6061-15 vol % SiCw. Su comportamiento se ha comparado con el de la aleación Al6061 pulvimetalúrgica y la aleación Al6061 de colada. El comportamiento del material pulvimetalúrgico sin reforzar mejora respecto al del material de colada. Al mismo tiempo, el del material compuesto mejora respecto al comportamiento del material pulvimetalúrgico sin reforzar. Se consideran dos factores microestructurales como los principales responsables de la mejora de las propiedades en fluencia de este material compuesto. Por un lado, las partículas de Al2O3 de tamaño nanométrico y, por otro, las partículas de fibra corta cerámicas de SiC de tamaño micrométrico. Aunque ambos tipos de partículas dan lugar a un efecto de refuerzo similar, los mecanismos intrínsecos asociados a la presencia de estas partículas tienen una naturaleza diferente debido a la diferencia en la escala microestructural.Peer reviewe
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