335 research outputs found
ANALYZING NURSE-PHYSICIAN DISCURSIVE PRACTICES IN ACUTE PATIENT CARE
This mixed methods study in inter-professional health communication assesses the pedagogical role of writing and visual communication in the education of non-traditional and traditional Nursing students as they interpret and apply the concepts of message framing and message reception in nurse-physician communication. To achieve that goal, this study analyzes the dynamics of terministic screens as message frames that can determine message reception in nurse-physician communication regarding the status of an acute care patient. The study was conducted in two Nursing writing and communication classes during the Spring 2011 semester. Two study groups (combined across classes) included a mixed population of traditional and non-traditional undergraduate Nursing students. During the same week in March 2011, one study group viewed the YouTube video Of Lions and Lambs. Another study group read the transcript of the video. Each group completed pre- and post-intervention Likert-style questionnaires designed to elicit perceptions regarding the efficacy of nurse-physician communication, as reflected in the print or video scenario. Each group also completed three post-intervention qualitative surveys. The qualitative free-writing arm of the study included a focus on situated dialogic learning regarding determinants of effective inter-professional communication. Nonparametric ANOVA analyses were conducted to assess the quantitative Likert data. A discourse analysis was conducted to assess the qualitative free-writing data. Those analyses suggest that the agency of the spoken word to support or confound clinical ethos and patient care is exemplified in the video and script for Of Lions and Lambs. This study suggests a role for combined print and video pedagogies to teach and assess effective versus ineffective nurse-physician communication in acute patient care. More research is needed to confirm how best to combine those pedagogies in traditional and new media contexts. Additional quantitative and qualitative results when complete may help to clarify those issues
The First Amendment: Free Speech or Ticket to Abuse? A Comparison of American and Canadian Approaches to Regulating Pornography
Effects of waterlogging during grain filling on yield components, nitrogen uptake and grain quality in bread wheat
Waterlogging stress frequently affects wheat production in the current conditions. The aim of this work was to evaluate the effect of waterlogging during grain filling on grain yield components, nitrogen uptake and partitioning and gluten composition and quality in bread wheat. Two greenhouse experiments were conducted under contrasting environmental conditions in Azul, Buenos Aires, in a completely randomized design with three replicates. The cultivar chosen was Klein León and the waterlogging treatment was imposed from 5 days after anthesis to maturity. The effects of waterlogging during grain filling in wheat depended on explored environmental conditions: early sowing vs. late sowing. Waterlogging had not significant effects on the most variables at early sowing conditions. However, the delaying in sowing date (higher temperature and radiation) enhance the effects of waterlogging: i) reducing grain weight by 41% and total nitrogen uptake by 51%; ii) reducing the ratio between the contents of high and low molecular weight glutenin subunits, affecting gluten composition; and iii) increasing the sodium dodecyl sulfate test from 79 to 108 mm, which correlates positively with the gluten strength. Reductions in grain weight due to waterlogging during grain filling affect the milling quality, although changes in protein composition may increase or maintain the gluten strength (SDSS) under particular conditions
Examining the impact of a social skills early intervention program for preschool aged children in an inclusive setting
The purpose of this study was to examine the impact of an eight (8) week social skills early intervention program for children with developmental disabilities and their typically developing peers. The social skills intervention program was integrated as part of the classroom program. Through qualitative analysis using themes this study revealed that the participants showed an awareness of their (1) Attitudes and Feelings, (2) Learning about bullying. They also had an increase in their (3) Focus and Participation and (4) Prosocial Behaviors throughout the program. Based on the findings from the qualitative data and the time sampling (quantitative data), results indicated that instances of prosocial behavior increased from time 1 to time 2. The results from the rating scales and questionnaires completed by the educators of the participating children revealed that the program was developmentally appropriate, that it was something that they would implement in their classrooms and that the children benefited from it. The responses from the parents revealed that the bi-weekly "Parent Newsletters" offered useful suggestions and ideas that were well integrated in the home. Also, the program proved beneficial for both the children and their parents in terms of finding ways to discuss critical issues such as emotions, friendships, self-esteem and conflict resolutio
Caracterización de <i>Fusarium poae</i> mediante metodologías moleculares y su potencial producción de toxinas
Hipótesis planteada: los aislamientos de Fusarium poae son heterogéneos a nivel genómico y en su potencial producción de toxinas.
Objetivo general: aportar conocimientos básicos sobre uno de los patógenos fúngicos de interés agronómico más importante como productor de toxinas nocivas para la salud humana y de los animales.
Objetivos particulares: evaluar la variabilidad genética de aislamientos de Fusarium poae, identificar regiones codificantes asociadas a la producción de toxinas del patógeno.
(Párrafo extraído del texto a modo de resumen)Facultad de Ciencias Exacta
Respuesta del trigo (Triticum spp.) y la cebada (Hordeum vulgare) a Fusarium poae.
La fusariosis de la espiga es una enfermedad importante que ataca al trigo (Triticumspp.), la cebada (Hordeum vulgare) y otros granos en el mundo. Entre las especies deFusariumque causan esta enfermedad,Fusarium poaees una de las menos frecuentes, pero es un hongo cuya importancia es cada vez más reconocida y se le asocia con la toxicosis en humanos y animales. El objetivo de este estudio fue examinar las respuestas de las variedades de trigo y cebada a la inoculación de diferentes aislamientos deF. poae, a fin de observar la contaminación producida por este hongo en los granos. Los análisis se realizaron durante 2008, 2009 y 2010 en condiciones naturales, en la Facultad de Agronomía de Azul-UNCPBA, provincia de Buenos Aires, Argentina. Se hicieron análisis estadísticos, y las identidades de los aislamientos re-aislados se probaron con reacciones de iniciadores específicos PCR y por comparación de amplificaciones de ADN-ISSR. Las diferencias entre variedades en los síntomas del hongo fueron significativas (p≤0.05) sólo en 2008. Aunque el número de aislamientos re-aislados en trigo fue mayor que el número de muestras con síntomas observables, las correlaciones no fueron significativas. Sin embargo, hubo correlaciones significativas en la cebada y los análisis de regresión lineal sugiriendo que por cada grano con síntomas visibles, dos granos de cebada podrían contener el hongo. Asi puede concluirse que el número de granos contaminados conF. poaees significativamente mayor que el de aquellos con síntomas observables de la enfermedad y, por tanto, el alcance real de la contaminación conF. poaees subestimado y se debiera considerar para el análisis de riesgos alimentarios en un futuro próximo.Fusariumhead blight is an important disease attacking wheat (Triticumspp.), barley (Hordeum vulgare) and other grains worldwide. Among theFusariumspecies causing this disease,Fusarium poaeis less often implicated, but is a fungus of increasingly recognized importance and it is associated with human and animal toxicoses. The aim of this study was to examine the responses of wheat and barley varieties to inoculation by differentF. poaeisolates, in order to observe contamination by this fungus in the grains. The analyses were performed during 2008, 2009, and 2010 under natural conditions at the Facultad de Agronomía de Azul-UNCPBA, province of Buenos Aires, Argentina. Statistical analyses were carried out and the identities of re-isolated isolates were tested by a primer-specific PCR reaction and by comparing DNA-ISSR amplifications. Differences among varieties in fungal symptoms were significant (p≤0.05) only in 2008. Although the number of re-isolated isolates in wheat was greater than the number of samples with observable symptoms, no significant correlations were found. However, there were correlations in barley and the linear regression analyses allow suggesting that for each grain with visual symptoms, two barley grains could contain the fungus. Thus it can be concluded that the real number of grains contaminated withF. poaeis significantly higher than the number with observable disease symptoms, and therefore the real extent of contamination withF. poaeis currently underestimated and should be considered for food risk analysis in the near future
3-Phenyl-6-(2-pyridyl)-1,2,4,5-tetrazine
The title compound, C13H9N5, is the first asymmetric diaryl-1,2,4,5-tetrazine to be crystallographically characterized. We have been interested in this motif for incorporation into supramolecular assemblies based on coordination chemistry. The solid state structure shows a centrosymmetric molecule, forcing a positional disorder of the terminal phenyl and pyridyl rings. The molecule is completely planar, unusual for aromatic rings with N atoms in adjacent ortho positions. The stacking observed is very common in diaryltetrazines and is dominated by π stacking [centroid-to-centroid distance between the tetrazine ring and the aromatic ring of an adjacent molecule is 3.6 Å, perpendicular (centroid-to-plane) distance of about 3.3 Å]
Respuesta del Trigo (triticum spp.) y la Cebada (hordeo vulgare) a Fusarium poae
Fusarium head blight is an important disease attacking wheat (Triticum spp.), barley (Hordeum vulgare) and other grains worldwide. Among the Fusarium species causing this disease, Fusarium poae is less often implicated, but is a fungus of increasingly recognized importance and it is associated with human and animal toxicoses. The aim of this study was to examine the responses of wheat and barley varieties to inoculation by different F. poae isolates, in order to observe contamination by this fungus in the grains. The analyses were performed during 2008, 2009, and 2010 under natural conditions at the Facultad de Agronomía de Azul-UNCPBA, province of Buenos Aires, Argentina. Statistical analyses were carried out and the identities of re-isolated isolates were tested by a primer-specific PCR reaction and by comparing DNAISSR amplifications. Differences among varieties in fungal symptoms were significant (p£0.05) only in 2008. Although the number of re-isolated isolates in wheat was greater than the number of samples with observable symptoms, no significant correlations were found. However, there were correlations in barley and the linear regression analyses allow suggesting that for each grain with visual symptoms, two barley grains could contain the fungus. Thus it can be concluded that the real number of grains contaminated with F. poae is significantly higher than the number with observable disease symptoms, and therefore the real extent of contamination with F. poae is currently underestimated and should be considered for food risk analysis in the near future.La fusariosis de la espiga es una enfermedad importante que ataca al trigo (Triticum spp.), la cebada (Hordeum vulgare) y otros granos en el mundo. Entre las especies de Fusarium que causan esta enfermedad, Fusarium poae es una de las menos frecuentes, pero es un hongo cuya importancia es cada vez más reconocida y se le asocia con la toxicosis en humanos y animales. El objetivo de este estudio fue examinar las respuestas de las variedades de trigo y cebada a la inoculación de diferentes aislamientos de F. poae, a fin de observar la contaminación producida por este hongo en los granos. Los aná- lisis se realizaron durante 2008, 2009 y 2010 en condiciones naturales, en la Facultad de Agronomía de Azul-UNCPBA, provincia de Buenos Aires, Argentina. Se hicieron análisis estadísticos, y las identidades de los aislamientos re-aislados se probaron con reacciones de iniciadores específicos PCR y por comparación de amplificaciones de ADN-ISSR. Las diferencias entre variedades en los síntomas del hongo fueron significativas (p£0.05) sólo en 2008. Aunque el número de aislamientos re-aislados en trigo fue mayor que el número de muestras con síntomas observables, las correlaciones no fueron significativas. Sin embargo, hubo correlaciones significativas en la cebada y los análisis de regresión lineal sugiriendo que por cada grano con síntomas visibles, dos granos de cebada podrían contener el hongo. Asi puede concluirse que el número de granos contaminados con F. poae es significativamente mayor que el de aquellos con síntomas observables de la enfermedad y, por tanto, el alcance real de la contaminación con F. poae es subestimado y se debiera considerar para el análisis de riesgos alimentarios en un futuro próximoFil: Stenglein, Sebastian Alberto. Facultad de Agronomía de Azul; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Dinolfo, María Inés. Facultad de Agronomía de Azul; ArgentinaFil: Bongiorno, Fabricio. Facultad de Agronomía de Azul; ArgentinaFil: Moreno, Maria Virginia. Facultad de Agronomía de Azul; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentin
Fusarium graminearum sensu stricto associated with head blight on rye (Secale cereal L.) in Argentina
Fusarium head blight (FHB) is one of the most important diseases that occurs in cereal regions worldwide and causes serious economic damage. This disease can be caused by several Fusarium species with Fusarium graminearum sensu stricto being the most common pathogen isolated from several crops. The aim of this study was to report the occurrence of F. graminearum sensu stricto on rye grains collected from field samples in Argentina and to determine the potential ability to produce deoxynivalenol (DON), nivalenol (NIV) and zearalenone (ZEA). Based on morphological characteristics, the isolate was identified as F. graminearum sensu stricto. To confirm molecularly, portions of the RED and TRI genes were sequenced and showed 99% similarity with the F. graminearum sensu stricto sequences available in the NCBI database. The potential to produce DON, 15-ADON and ZEA was determined. Moreover, Koch´s postulates were carried out. To our knowledge, this is the first report of F. graminearum sensu stricto associated with rye kernels in Argentina.Fil: Martínez, Mauro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Cientifico Tecnolológico Mar del Plata. Instituto de Investigaciones en Biodiversidad y Biotecnología. Laboratorio de Biología Funcional y Biotecnología; ArgentinaFil: Dinolfo, María Inés. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Cientifico Tecnolológico Mar del Plata. Instituto de Investigaciones en Biodiversidad y Biotecnología. Laboratorio de Biología Funcional y Biotecnología; ArgentinaFil: Castañares, Eliana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Cientifico Tecnolológico Mar del Plata. Instituto de Investigaciones en Biodiversidad y Biotecnología. Laboratorio de Biología Funcional y Biotecnología; ArgentinaFil: Stenglein, Sebastian Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Cientifico Tecnolológico Mar del Plata. Instituto de Investigaciones en Biodiversidad y Biotecnología. Laboratorio de Biología Funcional y Biotecnología; Argentin
Milk Thistle (Silybum Marianum L.) as a Novel Multipurpose Crop for Agriculture in Marginal Environments: A Review
Milk thistle (Silybum marianum (L.) Gaertn.) is a versatile crop that has adapted to the broadly different soil and environmental conditions throughout all continents. To date, the fruits (\u201cseeds\u201d) of the plant are the only reliable source of silymarin, which, given its recognized therapeutic effects and its many present and potential uses, has led to a significant re-discovery and enhancement of the crop in recent years. Overall, although many studies have been carried out globally on the bioactivity, phytochemistry, and genetics of milk thistle, few and discontinuous research activity has been conducted on its basic agronomy as well as on the farm opportunities offered by the cultivation of this species. However, the multiple potential uses of the plant and its reduced need for external inputs suggest that milk thistle can perfectly fit among the most interesting alternative crops, even for marginal environments. The growing interest in natural medicine, the increasing popularity of herbal dietary supplements, and the multiple possibilities for livestock feeding are all arguments supporting the idea that in many rural areas, this crop could represent a significant tool for enhancing and stabilizing farm income. However, several issues still have to be addressed. The species retains some morphological and physiological traits belonging to non-domesticated plants, which make the application of some common agronomic practices challenging. Furthermore, the lack of reliable field data devoted to the definition of suitable cropping protocols represents a major constraint on the spread of this crop among farmers. This review has therefore focused on updating information on the main morphological and phytochemical traits of the crop and its agronomic characteristics and novel uses. Several gaps in technical knowledge have been addressed, and further goals for experimental activity have been outlined in order to guide farmers eager to cope with the cultivation of such a challenging and resource-rich crop
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