3,595 research outputs found
Contribution of Lianas to Plant Area Index and Canopy Structure in a Panamanian Forest
No full textLianas are an important component of tropical forests, where they reduce tree growth, fecundity and survival. Competition for light among plants may be intense; however the amount of light that lianas intercept is poorly understood. We used a large-scale liana removal experiment to quantify light interception by lianas in a Panamanian secondary forest. We measured the change in plant area index (PAI) and forest structure six weeks after cutting lianas in eight 80x80 m plots and in eight control plots, and then annually for four years. We used ground-based LiDAR to measure the 3-dimensional canopy structure before cutting lianas and annually for two years afterwards. Six weeks after cutting lianas, mean plot PAI was 20% higher in control versus liana removal plots. One year after cutting lianas, mean plot PAI was ~17% higher in control plots. The differences among treatments diminished significantly two years after liana cutting and, after four years, trees had fully compensated for the removal of lianas. Ground-based LiDAR revealed that lianas were distributed in the upper and middle parts of the canopy, and not just the upper canopy as previously suspected. Therefore, lianas attenuated ~20% of the light in the upper- and mid-canopy of the forest
Maria Elizabeth Rothmann Collection index
No full textThis index describes the Maria Elizabeth Rothmann collection and includes manuscript material and letters written by MER as well as manuscripts of other writers, notes on the Carnegie Commission, diary and newspaper clippings of the South African War by an unknown author. Correspondence ; literature ; social issues ; political affairs ; personalia ; photos
Women's life writing 1760-1830 : spiritual selves, sexual characters, and revolutionary subjects
No full textPhDThis thesis uses print and manuscript sources to analyse and interpret women's life
writing at the end of the eighteenth and beginning of the nineteenth centuries. I
explore printed works by Catharine Phillips, Mary Dudley, Priscilla Hannah Gurney,
Ann Freeman, Elizabeth Steele, Mary Robinson, Helen Maria Williams, Mary
Wollstonecraft, Grace Dalrymple Elliott, and Charlotte West and discuss the
manuscripts of Mary Fletcher, Mary Tooth, Sarah Ryan, and Elizabeth Fox. Of these
sources, five have never been analysed in the critical literature and six have received
little attention. Considered as a group, this large corpus of texts offers new insights
into the personal and political implications of different models of female selfhood and
social being.
In chapter one, I compare the religious identities presented in the spiritual
autobiographies of Quakers and Methodists. For these women, religious identification
provides a powerful sense of social belonging and enables public participation.
However, it may also lead to a loss of self in the demand for religious conformity and
self-abnegation. In chapter two, I consider the life writing of late eighteenth-century
courtesans. These women adapt available models of femininity and female authorship
in order to establish themselves as socially connected subjects. However, their
narratives also reveal that dependence on the sexual and literary marketplace puts
female selfhood under pressure. In chapter three, I explore the eyewitness accounts of
British women in the French Revolution. I argue that, for these writers, connecting
personal identity to political history is an enabling source of self-definition but it also
exposes them to the risks of self-fragmentation.
In my focus on the social function of women's life writing, I present an alternative to
the traditional alignment of the eighteenth-century autobiographical subject with the
autonomous self of individualism. These narratives allow us to reconsider the
productive and problematic dialectic between personal expression and representative
selfhood, self-authorship and collective narratives, and individualism and social
being. They suggest that women's life writing has the potential to be both the self-expression
of a unique heroine and the self-inscription of a politicised subject
TROPICAL FOREST SUCCESSION FROM THE LOCAL AND LANDSCAPE PERSPECTIVES
No full textPh.DDOCTOR OF PHILOSOPHY (FOS
Contribution of Lianas to Plant Area Index and Canopy Structure in a Panamanian Forest
Get PDFLianas are an important component of tropical forests, where they reduce tree growth, fecundity and survival. Competition for light among plants may be intense; however the amount of light that lianas intercept is poorly understood. We used a large-scale liana removal experiment to quantify light interception by lianas in a Panamanian secondary forest. We measured the change in plant area index (PAI) and forest structure six weeks after cutting lianas in eight 80x80 m plots and in eight control plots, and then annually for four years. We used ground-based LiDAR to measure the 3-dimensional canopy structure before cutting lianas and annually for two years afterwards. Six weeks after cutting lianas, mean plot PAI was 20% higher in control versus liana removal plots. One year after cutting lianas, mean plot PAI was ~17% higher in control plots. The differences among treatments diminished significantly two years after liana cutting and, after four years, trees had fully compensated for the removal of lianas. Ground-based LiDAR revealed that lianas were distributed in the upper and middle parts of the canopy, and not just the upper canopy as previously suspected. Therefore, lianas attenuated ~20% of the light in the upper- and mid-canopy of the forest
"different sentiments & different connections supports them" : sensibility, community, and diversity in British women's Romantic-period poetry
Get PDFWith diversity
as an overarching theme, women writers' responses to the
cultural
feminisation and developing social climate of
late eighteenth- and early
nineteenth-century Britain
are explored through analyses of their poems on
sensibility, community, and abolition.
To determine a
focus for
expressive criticism
and recover Romantic women writers
from the social and historical
contexts that have
previously succeeded in highlighting
male literary
achievements, women's poetry is
considered a distinct
contribution to Romanticism. This dissertation analyses poems
written
by Joanna Baillie, Anna Barbauld, Harriet
and Maria Falconar, Frances
Greensted, Frances Greville, Elizabeth Hands, Eliza Knipe, Isabella Lickbarrow,
Hannah More, Amelia Opie, Priscilla Pointon, Mary Robinson, Mary Scott, Helen
Maria Williams, Ann Yearsley, and Mary Julia Young.
Although literature brought together the public and private spheres, sensibility
mediated
between the two and served as a social currency
for
women.
The
various
applications of sensibility are apparent
in its dual-gendered nature,
its link
with
reason, and the significance of economic
language. A
new genre of the "Address to
Sensibility" was prominent
in the period and
followed
a
loose formula
which
defined
sensibility,
traced its
personal
impact,
and
determined
a
link between the Romantic
culture and
heightened
emotion.
Through
explorations of poems on
intellectual
coteries, patronage, creative
influence, Reviews, and
literary
critique,
it is
evident that women poets' affiliations
with the literary
community were marked
by
a
discomfort based on their literary
associations,
the anxiety about their public reception, and the social
differences in the
literary
community.
However, the development
of social,
intellectual, literary,
and
critical communities alleviated this discomfort
and contributed
to women's
participation
in literary
culture.
In
addition, women poets expressed sensibility and used images of community
in diverse ways in their works against slavery and the trade.
Abolitionist
poetry acts
as a case study of the particular motifs,
highlighted throughout, such as the
amalgamation of masculine and
feminine, the political and economic applications of
sensibility, the association of
feeling
with reason and community, and the assertion of
individuality
amidst commonality.
Women
poets' petitions
to alleviate the sufferings
of slaves paralleled arguments
for the improvement
of
British
society to benefit
women.
The poems discussed signify the complexity of the issues of sensibility,
community, and diversity
Femicidio en el penal: Medios, casos conmocionantes y representaciones
Get PDFSalta es una de las provincias argentinas que sus características históricas, culturales y políticas se configura como una sociedad conservadora. Esta situación la convierte en un escenario con preeminencia del orden patriarcal donde las diferencias de género se presentan exacerbadas y conforman un terreno propicio para que se ejerza, de forma sistemática, la violencia contra las mujeres y se cometan femicidios. En los últimos diez años, como consecuencia del movimiento de mujeres, la problemática tomó visibilidad y logró instalarse en la agenda pública nacional y local como una situación que vulnera derechos humanos. Al respecto, es interesante pensar el rol desempeñado por los medios de comunicación como una práctica constructora de sentido y de subjetividad, clave para la redefinición de lo público y la construcción de la democracia (Martín Barbero, 2005).En este universo resulta fundamental indagar las representaciones sociales construidas y reproducidas por los medios de comunicación sobre situaciones de violencia hacia la mujer en Salta, poniendo el foco de atención en casos de femicidios. Por lo planteado, en el presente trabajo, se realiza en primer lugar, una breve caracterización de la problemática en la provincia. Posteriormente, puntualizaremos el análisis en el tratamiento mediático de un caso de femicidio en un penal.Fil: Rodriguez, Maria Florencia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Salta; Argentina. Universidad Nacional de Salta. Facultad de Humanidades; Argentina. Universidad Nacional de Salta. Consejo de Investigación; ArgentinaFil: Ibarra, Mariana Elizabeth. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Salta; Argentina. Universidad Nacional de Salta. Facultad de Humanidades. Escuela de Ciencias de la Comunicación; Argentin
MARIA FOLLIA, A COURT LADY OF THE HUNGARIAN QUEEN ELIZABETH ŁOKIETEK, ACCOMPANYING HER MISTRESS ON A JOURNEY TO ITALY
Get PDFThe journey and stay of the Hungarian queen Elizabeth Łokietek, mother of King Lajos the Great and widow of King Charles Robert, to the Kingdoms of Naples and Rome from June 1343 until May 1344, is a well-researched topic in historiography. On that journey the queen was accompanied, as a Hungarian chronicler noted, by her court, numerous ladies-in-waiting, girls of noble origin, Hungarian barons, knights and servants. Yet, of all the women accompanying the queen, only the identity of one of her court ladies is known, that of aristocrat Maria Follia. Her presence in the (closest) surrounding of the queen is testified by two diplomatic sources, one of Hungarian and another of Naples provenance. Maria was the widow of a recently deceased Hungarian palatine William Drugeth (who died in September 1342). The author in this paper investigates the causes and complex circumstances under which Maria Follia participated in the Italian journey of her mistress. The issue is all the more interesting since it is known that, after the death of palatine William, the Drugeth family, until then the most powerful Hungarian baron family, lost their wealth, fortune and positions in the royal court. One of the possible answers to this question is a conclusion that the palatine’s widow, independent of her husband’s family, stayed in good relations with Queen Elizabeth and kept her positions in the royal court
Evaluación de cultivares de la Red de Ensayos de Trigo (RET) frente a bacteriosis conducida en INTA Marcos Juárez durante la campaña 2024
Get PDFEl presente informe detalla la evaluación de bacteriosis en cultivares de trigo pan realizada durante la campaña 2024 en la Estación Experimental Agropecuaria INTA Marcos Juárez, como parte de la Red de Ensayos de Trigo (RET). El objetivo fue caracterizar el comportamiento sanitario de diferentes genotipos frente a enfermedades bacterianas, con el fin de contribuir a estrategias de manejo y selección varietal.Instituto de Patología VegetalFil: Martino, Julia Andrea. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Patología Vegetal; ArgentinaFil: Martino, Julia Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas. Unidad de Fitopatología y Modelización Agrícola (UFyMA); ArgentinaFil: Pozzi, Elizabeth Alicia. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Marcos Juárez; Argentina.Fil: Gómez Montenegro, Brenda Emiliana. Consejo Nacional de Investigaciones Científicas y Técnicas. Unidad de Fitopatología y Modelización Agrícola (UFyMA); ArgentinaFil: Gómez Montenegro, Brenda Emiliana.Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Patología Vegetal; ArgentinaFil: Salines, Nicolas. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Marcos Juárez; ArgentinaFil: Rodriguez, Sandra Monica. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Patología Vegetal; ArgentinaFil: Rodriguez, Sandra Monica. Consejo Nacional de Investigaciones Científicas y Técnicas. Unidad de Fitopatología y Modelización Agrícola (UFyMA); ArgentinaFil: Alberione, Enrique Javier. Instituto Nacional de Tecnología Agropecuaria (INTA).Estación Experimental Agropecuaria Marcos Juárez; ArgentinaFil: Alemandri, Vanina Maria. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Patología Vegetal; ArgentinaFil: Alemandri, Vanina Maria. Consejo Nacional de Investigaciones Científicas y Técnicas. Unidad de Fitopatología y Modelización Agrícola (UFyMA); Argentin
Sugarcane filter cake waste as natural antibacterial agent against Xanthomonas citri subsp citri
Get PDFThe sugarcane filter cake waste (SFCW) is the main solid waste product generated during sugar production, without final disposition; and this work suggests that it could be reutilized to control Xanthomonas citri subsp citri (X. citri), the etiologic agent of citrus canker, in lemons. The aim of this work was the identification of phenolic compounds present in SFCW, and the evaluation of its antibacterial activity against X. citri, in vitro and in vivo using preventive and curative methods in lemons. Also, the antibacterial mode of action of SFCW on X. citri and its effect on Xanthan production were carried out. Results demonstrated the presence of phenolic compounds in SFCW and that quercetin, rutin, catechin and caffeic acids were the majority phenolic compounds. Phenolic extract had bactericidal action at high concentrations, inhibit the biofilm formation and reduce the exopolysaccharide production. The Inhibitory concentrations (IC50, IC90) and the Letal concentrations, LC50 and LC90 were determined. All individual phenolic compounds reduced the growth of X. citri and the effect increased with the concentration. In lemons, preventive and curative methods were effective to reduce X. citri survey. Moreover, our investigations showed that phenolic fraction of SFCW were effective to produce cellular death of X. citri in lemon. Our results demonstrated that SFCW could be reused as natural antibacterial agent against X. citri, etiologic agent of citrus canker in lemons.Fil: Guerra, Laureana. Universidad Nacional de Tucumán. Facultad de Bioquímica, Química y Farmacia; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Nisoria Santillan, Paula Elizabeth. Universidad Nacional de Tucumán. Facultad de Bioquímica, Química y Farmacia; ArgentinaFil: Saguir de Zucal, Fabiana Maria. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Tucumán. Facultad de Bioquímica, Química y Farmacia; ArgentinaFil: Rodriguez Vaquero, Maria Jose. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Tucumán. Facultad de Bioquímica, Química y Farmacia; Argentin
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