149 research outputs found
Grammar practice : theory and practice
Fil: Luque Colombres, María Candelaria. Universidad Nacional de Córdoba. Facultad de Lenguas; Argentina.Fil: Meehan, Patricia. Universidad Nacional de Córdoba. Facultad de Lenguas; Argentina.Fil: Oliva, María Belén. Universidad Nacional de Córdoba. Facultad de Lenguas; Argentina.Fil: Rius, Natalia. Universidad Nacional de Córdoba. Facultad de Lenguas; Argentina.Fil: de Maussion, Ana. Universidad Nacional de Córdoba. Facultad de Lenguas; Argentina.Fil: Neyra, Vanina Pamela. Universidad Nacional de Córdoba. Facultad de Lenguas; Argentina.Our main objective when writing this handbook has been to design some kind of material that
would provide the first-year university student at Facultad de Lenguas with the basic foundations of
English grammar. Although this handout could be used as a self-study grammar guide, the student
should bear in mind it is meant to be used as a complement of class work. Therefore, the material
included in the present publication has not been organized according to the level of difficulty, but
rather in accordance with the syllabus of the subject. Each chapter brings along graded exercises
which have been carefully designed to improve and consolidate the grammar topics included in the
syllabus of the subject. Finally, we would like to point out that to round off each unit, we have
decided to include texts (often authentic ones) in an attempt to offer the student a new perspective
on the subject: one which relates grammatical structure systematically to meaning and use.Fil: Luque Colombres, María Candelaria. Universidad Nacional de Córdoba. Facultad de Lenguas; Argentina.Fil: Meehan, Patricia. Universidad Nacional de Córdoba. Facultad de Lenguas; Argentina.Fil: Oliva, María Belén. Universidad Nacional de Córdoba. Facultad de Lenguas; Argentina.Fil: Rius, Natalia. Universidad Nacional de Córdoba. Facultad de Lenguas; Argentina.Fil: de Maussion, Ana. Universidad Nacional de Córdoba. Facultad de Lenguas; Argentina.Fil: Neyra, Vanina Pamela. Universidad Nacional de Córdoba. Facultad de Lenguas; Argentina
The Problem of Prickling on Fabrics of South American Camelids Fibers: Possible Approaches for Mechanical Solutions
In this minireview it is to analyze the physical attributes that determine the comfort of fabrics made of South American Camelid fibers (Lama and Alpaca), discuss the effect on their textile value and evaluate an possible approache on their possible mechanical solutions. Taking the distribution of all fibers do not respond to a normal distribution, but the different fiber types identified by the type of medulla, they do respond to a normal distribution. While emphasis has always been on mean fiber diameter, the fiber frequency exceeding 30 microns (objectionable fibres) has a key role in quality. This is essential for light fabrics, where the effect of prickle plays a critical part in consumer´s choice. Dehairing, as a mechanical way, provides an immediate solution, though excessive fiber breakage should be addressed. It is concluded that the textile fiber quality of South American Camelids is promissory if the presence of objectionable fibers is solved, resulting in a tolerable frequency for consumers (<3%). This implies a true paradigm shift with regard to the classic textile processing of Alpaca and Lama fibers (from worsted to woolen system). This would enhance the fiber softness to touch, together with other important features that would render the fiber price more competitive
Investigaciones antropobiológicas en el contexto de la Arqueología de Rescate : Tafí del Valle, provincia de Tucumán
Introducción: En el marco de los trabajos de Arqueología de Rescate efectuados en Los Cuartos, en el este de Tafí del Valle, provincia de Tucumán se ha descubierto un contexto funerario muy afectado por procesos postdepositacionales. En este trabajo presentamos los estudios antropobiológicos efectuados sobre el material óseo recuperado. Los mismos se han orientado a obtener información sobre las características biológicas, tales como: edad a la muerte, sexo probable, condiciones de vida y otros elementos que aporten a la interpretación del evento funerario en sí mismo. Materiales y métodos: La muestra esqueletaria estudiada comprende un cráneo y algunos elementos postcraneales extraídos en excavación. Se realizó análisis morfoscópico para obtener información que permitiera la estimación de sexo y edad de muerte. Así mismo se procuró establecer posibles traumas y paleopatologías. Resultados: A través de la información obtenida de los elementos óseos se pudo establecer que los mismos corresponden a un individuo adulto de sexo femenino. El mismo no presenta deformación craneal cultural y/o paleopatologías. Conclusión: El esqueleto corresponde a un solo individuo de sexo femenino, el que fue colocado en el piso de un recinto habitacional, cubierto por grandes piedras. Se encuentra asociado con material cerámico asignable a la Cultura Tafí.Asociación de Antropología Biológica de la República Argentin
Investigaciones antropobiológicas en el contexto de la Arqueología de Rescate : Tafí del Valle, provincia de Tucumán
Introducción: En el marco de los trabajos de Arqueología de Rescate efectuados en Los Cuartos, en el este de Tafí del Valle, provincia de Tucumán se ha descubierto un contexto funerario muy afectado por procesos postdepositacionales. En este trabajo presentamos los estudios antropobiológicos efectuados sobre el material óseo recuperado. Los mismos se han orientado a obtener información sobre las características biológicas, tales como: edad a la muerte, sexo probable, condiciones de vida y otros elementos que aporten a la interpretación del evento funerario en sí mismo. Materiales y métodos: La muestra esqueletaria estudiada comprende un cráneo y algunos elementos postcraneales extraídos en excavación. Se realizó análisis morfoscópico para obtener información que permitiera la estimación de sexo y edad de muerte. Así mismo se procuró establecer posibles traumas y paleopatologías. Resultados: A través de la información obtenida de los elementos óseos se pudo establecer que los mismos corresponden a un individuo adulto de sexo femenino. El mismo no presenta deformación craneal cultural y/o paleopatologías. Conclusión: El esqueleto corresponde a un solo individuo de sexo femenino, el que fue colocado en el piso de un recinto habitacional, cubierto por grandes piedras. Se encuentra asociado con material cerámico asignable a la Cultura Tafí.Asociación de Antropología Biológica de la República Argentin
Investigaciones antropobiológicas en el contexto de la Arqueología de Rescate : Tafí del Valle, provincia de Tucumán
Introducción: En el marco de los trabajos de Arqueología de Rescate efectuados en Los Cuartos, en el este de Tafí del Valle, provincia de Tucumán se ha descubierto un contexto funerario muy afectado por procesos postdepositacionales. En este trabajo presentamos los estudios antropobiológicos efectuados sobre el material óseo recuperado. Los mismos se han orientado a obtener información sobre las características biológicas, tales como: edad a la muerte, sexo probable, condiciones de vida y otros elementos que aporten a la interpretación del evento funerario en sí mismo. Materiales y métodos: La muestra esqueletaria estudiada comprende un cráneo y algunos elementos postcraneales extraídos en excavación. Se realizó análisis morfoscópico para obtener información que permitiera la estimación de sexo y edad de muerte. Así mismo se procuró establecer posibles traumas y paleopatologías. Resultados: A través de la información obtenida de los elementos óseos se pudo establecer que los mismos corresponden a un individuo adulto de sexo femenino. El mismo no presenta deformación craneal cultural y/o paleopatologías. Conclusión: El esqueleto corresponde a un solo individuo de sexo femenino, el que fue colocado en el piso de un recinto habitacional, cubierto por grandes piedras. Se encuentra asociado con material cerámico asignable a la Cultura Tafí.Asociación de Antropología Biológica de la República Argentin
Modelo de adopción de las herramientas virtuales por parte de los docentes universitarios en el contexto del COVID19
The aim of this research is to propose a model for the adoption of virtual tools by university teachers in the context of COVID-19. The methodology is quantitative based on the collection of 123 questionnaires in universities in Medellín (Colombia). This model is due to the articulation of three of the technology adoption models (TRA, TPB and TAM). Among the results, it is observed that the most influential variables on the use of virtual tools by teachers are compatibility, self-efficacy, previous experience, satisfaction, availability of infrastructure, administrative intervention, social influence and technical suppor
Impact of two interventions on timeliness and data quality of an electronic disease surveillance system in a resource limited setting (Peru): a prospective evaluation
<p>Abstract</p> <p>Background</p> <p>A timely detection of outbreaks through surveillance is needed in order to prevent future pandemics. However, current surveillance systems may not be prepared to accomplish this goal, especially in resource limited settings. As data quality and timeliness are attributes that improve outbreak detection capacity, we assessed the effect of two interventions on such attributes in Alerta, an electronic disease surveillance system in the Peruvian Navy.</p> <p>Methods</p> <p>40 Alerta reporting units (18 clinics and 22 ships) were included in a 12-week prospective evaluation project. After a short refresher course on the notification process, units were randomly assigned to either a phone, visit or control group. Phone group sites were called three hours before the biweekly reporting deadline if they had not sent their report. Visit group sites received supervision visits on weeks 4 & 8, but no phone calls. The control group sites were not contacted by phone or visited. Timeliness and data quality were assessed by calculating the percentage of reports sent on time and percentage of errors per total number of reports, respectively.</p> <p>Results</p> <p>Timeliness improved in the phone group from 64.6% to 84% in clinics (+19.4 [95% CI, +10.3 to +28.6]; p < 0.001) and from 46.9% to 77.3% on ships (+30.4 [95% CI, +16.9 to +43.8]; p < 0.001). Visit and control groups did not show significant changes in timeliness. Error rates decreased in the visit group from 7.1% to 2% in clinics (-5.1 [95% CI, -8.7 to -1.4]; p = 0.007), but only from 7.3% to 6.7% on ships (-0.6 [95% CI, -2.4 to +1.1]; p = 0.445). Phone and control groups did not show significant improvement in data quality.</p> <p>Conclusion</p> <p>Regular phone reminders significantly improved timeliness of reports in clinics and ships, whereas supervision visits led to improved data quality only among clinics. Further investigations are needed to establish the cost-effectiveness and optimal use of each of these strategies.</p
A systemic framework based on Soft OR approaches to support teamwork strategy: an aviation manufacturer Brazilian company case
The paper reports on the application of a combination of Operational Research (OR) approaches to a real-world case of re-designing the strategy of a department management team, in an aircraft manufacturing organization in Brazil. We combine approaches from ‘Soft’ OR Problem Structuring Methods in a multi-methodological framework arguing that this helps to discuss, develop and implement a new departmental strategy. The proposed framework uses elements of Soft Systems Methodology; Strategic Options Development and Analysis to understand and structure the situation; Value-Focused Thinking to define the means and objectives; and Value-Focused Brainstorming to highlight the potential solutions. We conceptualize a four-phased systemic framework linking elements of the above four ‘Soft’ OR approaches and apply it to a real-world case in a department where a new team leader was appointed with the specific brief to improve the departmental strategy and its performance in general. Findings suggest that combining the approaches into a framework encourages trust and participation from stakeholders which, in practice, is translated into an improved strategy for the organization. A reflection on the multi-methodological approach is proposed. Conclusions and points for further research are suggested
In silico exploration of Red Sea Bacillus genomes for natural product biosynthetic gene clusters
Background: The increasing spectrum of multidrug-resistant bacteria is a major global public health concern, necessitating discovery of novel antimicrobial agents. Here, members of the genus Bacillus are investigated as a potentially attractive source of novel antibiotics due to their broad spectrum of antimicrobial activities. We specifically focus on a computational analysis of the distinctive biosynthetic potential of Bacillus paralicheniformis strains isolated from the Red Sea, an ecosystem exposed to adverse, highly saline and hot conditions. Results: We report the complete circular and annotated genomes of two Red Sea strains, B. paralicheniformis Bac48 isolated from mangrove mud and B. paralicheniformis Bac84 isolated from microbial mat collected from Rabigh Harbor Lagoon in Saudi Arabia. Comparing the genomes of B. paralicheniformis Bac48 and B. paralicheniformis Bac84 with nine publicly available complete genomes of B. licheniformis and three genomes of B. paralicheniformis, revealed that all of the B. paralicheniformis strains in this study are more enriched in nonribosomal peptides (NRPs). We further report the first computationally identified trans-acyltransferase (trans-AT) nonribosomal peptide synthetase/polyketide synthase (PKS/ NRPS) cluster in strains of this species. Conclusions:B. paralicheniformis species have more genes associated with biosynthesis of antimicrobial bioactive compounds than other previously characterized species of B. licheniformis, which suggests that these species are better potential sources for novel antibiotics. Moreover, the genome of the Red Sea strain B. paralicheniformis Bac48 is more enriched in modular PKS genes compared to B. licheniformis strains and other B. paralicheniformis strains. This may be linked to adaptations that strains surviving in the Red Sea underwent to survive in the relatively hot and saline ecosystems
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