Desde Quisqueya Hacia Borinquena: Experience And Visibility of Immigrant Dominican Women In Puerto Rico: Violence, Lucha And Hope In Their Own Voices

According to the United Nations, (U.N.) more than 1.5 million Dominicans have migrated from the Island of La Espatiola, most living in the United States

Towards an Outcrit Pedagogy of Anti-Subordination in the Classroom

This Article discusses how traditional teaching practices can reinforce systemic discrimination, exclusion, subordination and oppression within the classroom in particular detriment to women and students of color. The Article traces the discussions about pedagogy in Outcrit literature and proposes that Outcrit scholars teaching techniques within the classroom should reflect anti-subordination praxis in teaching. Drawing from the work of Paulo Freire, Derrick Bell and others, the Article proposes that teaching from an anti-subordination perspective requires a praxis of collaborative, non-hierarchical teaching that calls for an epistemological shift. A pedagogy that frees the student to think independently and leads to an experience where there is a non-oppressive dialectic relationship between students and professors. Finally, the Article strives to offer specific examples of practices that can help build a more democratic and inclusive classroom

Towards an Outcrit Pedagogy of Anti-Subordination in the Classroom

This Article discusses how traditional teaching practices can reinforce systemic discrimination, exclusion, subordination and oppression within the classroom in particular detriment to women and students of color. The Article traces the discussions about pedagogy in Outcrit literature and proposes that Outcrit scholars teaching techniques within the classroom should reflect anti-subordination praxis in teaching. Drawing from the work of Paulo Freire, Derrick Bell and others, the Article proposes that teaching from an anti-subordination perspective requires a praxis of collaborative, non-hierarchical teaching that calls for an epistemological shift. A pedagogy that frees the student to think independently and leads to an experience where there is a non-oppressive dialectic relationship between students and professors. Finally, the Article strives to offer specific examples of practices that can help build a more democratic and inclusive classroom

Chemical changes of heat treated pine and eucalypt wood monitored by FTIR

A hardwood, Eucalyptus globulus Labill., and a softwood Pinus pinaster Aiton., were heat treated at temperatures between 170 and 210ºC in an oven and in an autoclave. The samples were pre-extracted with dichloromethane, ethanol and water and ground prior to Fourier Transform Infrared (FTIR) spectroscopic analysis. The heat treatment caused significant changes in the chemical composition and structure of wood, in lignin and polysaccharides. Hemicelluloses were the first to degrade as proved by the initial decrease of the 1730 cm-1 peak due to the breaking of acetyl groups in xylan. Hardwood lignin changed more than softwood lignin, with a shift of maximum absorption from 1505 cm-1 to approximately 1512 cm-1 due to decrease of methoxyl groups, loss of syringyl units or breaking of aliphatic side-chains. The macromolecular structure becomes more condensed and there is a clear increase of non-conjugated (1740 cm-1) in relation to conjugated groups (1650 cm-1). However, the changes induced by the thermal treatment are difficult to monitor by FTIR spectroscopy due to the different chemical reactions occurring simultaneously.info:eu-repo/semantics/publishedVersio

Measuring the Impact of Melaleuca quinquenervia Biochar Application on Soil Quality, Plant Growth, and Microbial Gas Flux

Biochar has been heralded a mechanism for carbon sequestration and an ideal amendment for improving soil quality. Melaleuca quinquenervia is an aggressive and wide-spread invasive species in Florida. The purpose of this research was to convert M. quinquenervia biomass into biochar and measure how application at two rates (2% or 5% wt/wt) impacts soil quality, plant growth, and microbial gas flux in a greenhouse experiment using Phaseolus vulgaris L. and local soil. Plant growth was measured using height, biomass weight, specific leaf area, and root-shoot ratio. Soil quality was evaluated according to nutrient content and water holding capacity. Microbial respiration, as carbon dioxide (CO2), was measured using gas chromatography. Biochar addition at 5% significantly reduced available soil nutrients, while 2% biochar application increased almost all nutrients. Plant biomass was highest in the control group, p2 flux decreased significantly in both biochar groups, but reductions were not long term

Controlled nucleation of topological defects in the stripe domain patterns of Lateral multilayers with Perpendicular Magnetic Anisotropy: competition between magnetostatic, exchange and misfit interactions

Magnetic lateral multilayers have been fabricated on weak perpendicular magnetic anisotropy amorphous Nd-Co films in order to perform a systematic study on the conditions for controlled nucleation of topological defects within their magnetic stripe domain pattern. A lateral thickness modulation of period $w$ is defined on the nanostructured samples that, in turn, induces a lateral modulation of both magnetic stripe domain periods $\lambda$ and average in-plane magnetization component $M_{inplane}$. Depending on lateral multilayer period and in-plane applied field, thin and thick regions switch independently during in-plane magnetization reversal and domain walls are created within the in-plane magnetization configuration coupled to variable angle grain boundaries and disclinations within the magnetic stripe domain patterns. This process is mainly driven by the competition between rotatable anisotropy (that couples the magnetic stripe pattern to in-plane magnetization) and in-plane shape anisotropy induced by the periodic thickness modulation. However, as the structural period $w$ becomes comparable to magnetic stripe period $\lambda$, the nucleation of topological defects at the interfaces between thin and thick regions is hindered by a size effect and stripe domains in the different thickness regions become strongly coupled.Comment: 10 pages, 7 figures, submitted to Physical Review