Behaviour of poplar clones in Barreal : San Juan, Argentina

Con el objetivo de estudiar el comportamiento de diferentes clones de álamos en el valle cordillerano de Barreal, ubicado en la provincia de San Juan, Argentina, en 1995 se instaló un ensayo con los siguientes clones: 7 Populus x canadensis: Cima, Fogolino, Giorgione, Schiavone, Conti 12, I-214, Veronese y 7 Populus x deltoides: Harvard, Fierolo, I-72, 67/67, 71/67, Catfish 2 y Catfish 5. El sitio se encuentra a 31°36'55'' S, 69°27'30'' W y una altura de 1.628 msnm. El suelo es aluvial, de textura franca con cantos rodados de tamaño medio a partir de los 70 cm de la superficie. El marco de plantación fue de 5 x 2,5 m y el riego superficial por surcos. Se tomaron periódicamente datos dasométricos del diámetro altura de pecho (DAP) de todos los individuos, y altura total de árboles de diámetro promedio de cada clon. Además se observó cada una de las plantas a fin de determinar la presencia o ausencia de cancrosis del álamo y taladrillo de los forestales. Los resultados a la fecha muestran que los clones con mayor producción de madera, expresada en m3/ha son: Schiavone, I-214, Veronese, Conti 12 y Giorgione.Aiming to study different poplar clones behaviour in the Andinean Valley of Barreal, placed in the province of San Juan, Argentina, in 1995 was set a trial with the following clones: 7 Populus x canadensis: Cima, Fogolino, Giorgione, Schiavone, Conti 12, I-214, Veronese, and 7 Populus x deltoides: Harvard, Fierolo, I-72, 67/67, 71/67, Catfish 2 and Catfish 5. The site is placed at 31°36'55" S and 69°27'30" W and a height of 1.628 mosl. Soil is of alluvium sediment; medium texture with middle size rolling stones, beginning at 70 cm below the surface. Plantation order was settled at 5 x 2.5 m and irrigation by surface furrows. Periodically dasometric data was taken of brest height diameter (BDH) of all individuals and total height of trees which of the average diameter on each clon. It was also observed the health development of each plant mainly to establish the presence or absence of pests and diseases like Poplar Borer and Septoria Canker. Results up to date show that higher wood production expressed in m3/ha are: Schiavone, I-214, Veronese, Conti 12 and Giorgione.Fil: Bustamante, Juan A.. Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias. Departamento de Producción AgropecuariaFil: Perez, Silvina. Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias. Departamento de Producción Agropecuari

Design and Optimization of a Molten Metal Loop Driven by an Electromagnetic Pump

Liquid Metal Fast Reactor (LMFR) utilizing liquid metal as a coolant is still being considered for future nuclear energy. In this concept, transporting liquid metal still poses many challenges in engineering design and material detection and accountability. In this senior design project, the team has been exploring a design and optimization of a molten metal loop driven by an electromagnetic pump. Here, a manometer type solution was deemed the best method to achieve meaningful results. Transparent Pyrex tubing was selected for the manometers, as the visual column difference would indicate pressure differences. Tin was selected for the working fluid, and an array of solutions were considered for the metering fluid. Mercury, bismuth, and lead were all considered, but ruled out for technical and safety reasons. It was determined that argon gas would work best as it is non-reactive at a high operating temperature and relatively safe. A pressurizer system was designed and built to combat forced cavitation in the loop due to argon. The loop was built with the ability to see the differential pressure as determined through a difference in tin column heights. If this is achieved, then the possible incorporation of a laser induced breakdown spectroscopy system will be incorporated to analyze the different compositions (contaminations) of the molten metal in the loop completing material safeguarding concept. A new port will be added to the loop for implementation of the quartz window in anticipation of future use of the system.https://scholarscompass.vcu.edu/capstone/1135/thumbnail.jp

Design of an anti-inflammatory diet (ITIS diet) for patients with rheumatoid arthritis.

Background:Rheumatoid arthritis (RA) is a chronic systemic autoimmune disease that affects synovial joints, leading to inflammation, joint destruction, loss of function, and disability. Although recent pharmaceutical advances have improved treatment of RA, patients with RA often inquire about dietary interventions to improve RA symptoms, as they perceive rapid changes in their symptoms after consumption of certain foods. There is evidence that some ingredients have pro- or anti-inflammatory effects. In addition, recent literature has shown a link between diet and microbiome changes. Both diet and the gut microbiome are linked to circulating metabolites that may modulate inflammation. However, evidence of the effects of an anti-inflammatory and probiotic-rich diet in patients with RA is scarce. There is also a need for biological data to support its anti-inflammatory effects. Methods:The main goal of this study is to delineate the design process for a diet tailored to our RA population. To achieve this goal, we collected information on diet, supplements, cooking methods, and intake of different ingredients for each patient. Different groups were interviewed, and their feedback was assessed to design a diet that incorporates suggested anti-inflammatory ingredients in a manner that was easy for patients to adopt based on their lifestyles and backgrounds. Results:We designed a diet that includes a high intake of potential anti-inflammatory ingredients. Feedback from highly motivated patients was critical in constructing an anti-inflammatory diet (ITIS diet) with elevated adherence. Conclusion:In order to tailor our diet, we surveyed our patients on several different parameters. We obtained important feedback on how feasible our ITIS diet is for RA patients. Using this feedback, we made minor improvements and finalized the design of the ITIS diet. This diet is being used in an on-going pilot study to determine their anti-inflammatory effect in pain and joint swelling in RA patients. Trial registration:Not applicable

Polimorfismo del gen del transportador de serotonina (5-HTT) y trastorno de depresión mayor en pacientes en bogotá, Colombia

Introduction: The 5-HTT short allele has been controversially associated with an increased risk of major depressive disorder. Objective: To determine the association of 5-HTT short allele with major depression in Bogotá, Colombia. Materials and methods: We carried out a study of cases (n=68) matched 1:1 with controls by gender and age (±5 years). Major depression was diagnosed using the Mini-International Neuropsychiatric Interview, and 5-HTT polymorphism using PCR. Results: Females were predominant (82.4%). The S (short) allele predominated in cases compared with controls (S: 72.1% vs. 63.2; L (long): 27.9% vs. 36.8%), and the SL genotype was more frequent in cases (SL: 45.6% vs. 36.8%; LL: 27.9% vs. 36.8%; SS: 26.5% vs. 26.5%), although not significantly. There were significant differences in those under age 37, with a predominance of the S allele in cases (p=0.038; OR=2.75; 95% CI: 0.88-8.64). Multivariate analysis, adjusted for comorbid anxiety disorders, showed a significant association of major depression with the SL genotype (p=0.049; OR=3.20; 95% CI: 1.00-10.23); the S allele was close to statistical significance (p=0.063; OR=2.94; 95% CI: 0.94-9.13), and it was statistically significant in cases under 37 years of age (p=0.026; OR=10.79; 95% CI: 1.32-80.36). Conclusions: The SL genotype was associated with major depressive disorder in patients of all ages. The S allele was significantly associated with major depressive disorder in patients under age 37, adjusted for comorbid anxiety disorders

Genomic Profiling of Thyroid Nodules: Current Role for ThyroSeq Next-Generation Sequencing on Clinical Decision-Making

In recent years there has been an increased awareness of the genetic alterations underlying both benign and malignant neoplasms of the thyroid. Next-generation sequencing (NGS) is an emerging technology that allows for rapid detection of a large number of genetic mutations in thyroid fine-needle aspiration (FNA) specimens. NGS for targeted mutational analysis in thyroid tumors has been proposed as a tool to assist in the diagnosis of thyroid nodules with indeterminate FNA cytology. Results of genomic testing of thyroid nodules and thyroid cancers could also have prognostic implications and play a role in determining optimal treatment strategies including targeted therapies. We provide a critical review of existing studies assessing the performance of the ThyroSeq NGS test for the diagnosis and management of patients with thyroid nodules with indeterminate cytopathology and discuss the applicability of findings from these studies to clinical practice. While there are early indications to suggest a possible utility of data obtained from NGS to aid in prognostication and therapeutic decisionmaking in thyroid cancer, we recommend judicious use and cautious interpretation of such molecular testing until results of ongoing clinical trials become available. Lastly, we discuss recommendations provided from clinical practice guidelines regarding the use of mutation detection via NGS in the diagnostic evaluation of thyroid nodules

Conifers behaviour under irrigation in the Yaucha dam : Mendoza, Argentina

La provincia de Mendoza, que se ubica en el Centro-Oeste de la República Argentina, posee una extensión de 150.830 km2. Prácticamente todas las actividades agropecuarias y forestales están concentradas en el 3% de su territorio que es posible irrigar. Al oeste, en el límite con la República de Chile, está la cadena montañosa que forma parte de la región fitogeográfica del Desierto Andino que se extiende por más de 500 km, con un ancho promedio de 100 km. El objetivo de este trabajo fue evaluar la supervivencia y el comportamiento de distintas especies de coníferas en zonas del piedemonte mendocino. Para ello se instaló una parcela experimental en el Dique Yaucha, ubicado en el Departamento de San Carlos a 34°00' S y 69°07' O, a una altura de 1213 msnm. Las especies del ensayo fueron: Pinus pinea L., Pinus halepensis Mill. y Cupressus arizonica Greene. Se llevaron plantas de aproximadamente 0,70 m de altura, que se instalaron a una distancia de plantación definitiva de 3 x 3 m y se regaron superficialmente por surcos. Se tomaron periódicamente datos dasométricos de diámetro altura de pecho (DAP) de todas las plantas, altura total de los árboles promedio de cada especie, registrándose además las fallas producidas y el estado sanitario. Los resultados obtenidos a la edad de 17 años son: Pinus pinea: diámetro promedio 17 cm, altura 6,60 m y 22,5% de fallas; Pinus halepensis: diámetro promedio 16 cm, altura 8,60 m y 12,2% de fallas; Cupressus arizonica: diámetro promedio 20 cm, altura 7,75 m y 18,1% de fallas. Es de destacar que P. pinea presenta el 6% de fustes bifurcados a baja altura. Todas las especies tienen un buen estado sanitario, no registrándose hasta la fecha plagas o enfermedades que hayan afectado el desarrollo del ensayo.The Province of Mendoza is ubicated in the Mid-Western part of República Argentina with an extention of 150.830 km2. There all agrarian and forestry activities are concentrated in a 3% of its territory which is able to be irrigated. On the West side part of the province by the border with Republic of Chile appears the mountain ridge (Cordillera de Los Andes) which is a part of the fitogeographical region called Andinian Desert. It extents for over 500 km with an average wide of 100 km. This work is aimed to evaluate survival and behaiviours of different species of conifers in the mountanious country side of Mendoza. To do so there was installed an experimental plots in Yaucha dam, placed in San Carlos department at 34°00' S and 69°07' W, at an altitude of 1213 mosl. Species on test were Pinus pinea L., Pinus halepensis Mill., and Cupressus arizonica Greene. For the experience were used plants of approximately 0.70 m height and were installed at a definite plantation distance of 3 x 3 m whit surface irrigation stream water by furrows. Periodically dasometric data is taken about diameter, chest height of every plant, total average height of trees of each specie, registering failures and sanitary situation. Results obtained at the age of 17 years are: Pinus pinea: average diameter 17 cm, height 6.60 m, failure 22.5%; Pinus halepensis: average diameter 16 cm, height 8.60 m, failure 12.2%; Cupressus arizonica: average diameter 20 cm, height 7.75 m, failure 18.1%. It is to be noted that Pinus pinea presents 6% of low height forked branches. All species are in good sanitary shape not registering any pests or diseases affecting the experiment up to date.Fil: Calderón, Alberto. Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias. Departamento de Producción AgropecuariaFil: Bustamante, Juan A.. Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias. Departamento de Producción AgropecuariaFil: Riu, Nuria. Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias. Departamento de Producción AgropecuariaFil: Perez, Silvina. Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias. Departamento de Producción Agropecuari

Domains of analyticity and Gevrey estimates of tori in weakly dissipative systems

We consider the problem of following quasi-periodic tori in perturbations of Hamiltonian systems which involve friction and external forcing. In the first part, we study a family of dissipative standard maps of the cylinder for which the dissipation is a function of a small complex parameter of perturbation. We compute perturbative expansions formally in the parameter of perturbation and use them to estimate the shape of the domains of analyticity of invariant circles as functions of the parameter of perturbation. We also give evidence that the functions might belong to a Gevrey class. The numerical computations we perform support conjectures on the shape of the domains of analyticity. In the second part, we consider a singular perturbation for a family of analytic symplectic maps of the annulus possessing a KAM torus. The perturbation introduces dissipation and contains an adjustable parameter. We prove that the formal expansions for the quasiperiodic solutions and the adjustable parameter satisfy Gevrey estimates. To prove this result we introduce a novel method that might be of interest beyond the problem considered in this work.Ph.D

Pinus nigra behaviour under irrigation in the Yaucha dam : Mendoza, Argentina

La provincia de Mendoza, que se ubica en el Centro-Oeste de la República Argentina, posee una extensión de 150.830 km2. Prácticamente todas las actividades agropecuarias y forestales están concentradas en el 3% de su territorio que es posible irrigar. Al Oeste, en el límite con la República de Chile, está la cadena montañosa que forma parte de la región fitogeográfica del Desierto Andino que se extiende por más de 500 km, con un ancho promedio de 100 km. El objetivo de este trabajo fue evaluar la supervivencia y el comportamiento de distintas procedencias de Pinus nigra en zonas del piedemonte mendocino. Para ello se instaló una parcela experimental en el Dique Yaucha, ubicado en el Departamento de San Carlos a 34°00’ S y 69°07’ O, a una altura de 1.213 msnm. Las procedencias del ensayo fueron: Pinus nigra var. clusiana (Francia), Pinus nigra var. austríaca (Livo - Italia), Pinus nigra var. austríaca (Lasa - Italia), Pinus nigra var. knin (ex Yugoslavia) y Pinus nigra var. pyramidalis (Turquía). Se llevaron plantas de aproximadamente 0,30 m de altura que se instalaron a una distancia de plantación definitiva de 3 x 3 m y se regaron superficialmente por surcos. Se tomaron periódicamente datos dasométricos de diámetro altura de pecho (DAP) de todas las plantas, altura total de los árboles promedio de cada procedencia, registrándose además las fallas producidas y el estado sanitario. Los resultados obtenidos a la edad de 17 años son: Pinus nigra var. clusiana (Francia): diámetro promedio 12,1 cm, altura 5,2 m y 10% de fallas; Pinus nigra var. austríaca (Livo -Italia): diámetro promedio 13 cm, altura 4,6 m y 25% de fallas; Pinus nigra var. austríaca (Lasa - Italia): diámetro promedio 13,9 cm, altura 5,60 m y 0% de fallas; Pinus nigra var. knin (ex Yugoslavia): diámetro promedio 14,1cm, altura 6,2 m y 15% de fallas y Pinus nigra var. pyramidalis (Turquía): diámetro promedio 11,6 cm, altura 5,8 m y 40% de fallas. Las plantas presentan una gran variabilidad de formas desde porte abierto a muy fastigiado. Todas las procedencias presentan un buen estado sanitario, no registrándose hasta la fecha plagas o enfermedades que hayan afectado el desarrollo del ensayo.The Province of Mendoza is located in the Mid-Western part of República Argentina with an extension of 150.830 km2. There all agrarian and forestry activities are concentrated in a 3% of its territory which is able to be irrigated. On the West side part of the province by the border with Republic of Chile appears the mountain ridge (Cordillera de Los Andes) which is a part of the fitogeographical region called Andinian Desert. It extents for over 500 km with an average wide of 100 km. This work was aimed to evaluate survival and behaviour of different provenience of Pinus nigra in the mountainous country side of Mendoza. To do so there was installed an experimental plot in Yaucha dam, placed in San Carlos Department at 34°00’ S and 69°07’ W, at an altitude of 1.213 mosl. Proveniences on test were Pinus nigra var. clusiana (France), Pinus nigra var. austriaca (Livo - Italy), Pinus nigra var. austriaca (Lasa - Italy), Pinus nigra var. knin (ex Yugoslavia) y Pinus nigra var. pyramidalis (Turkey). For the experience were used plants of approximately 0.30m height and were installed at a definite plantation distance of 3 x 3 m whit surface irrigation stream water by furrows. Periodically, dasometric data is taken about diameter, chest height of every plant, total average height of trees of each provenience, registering failures and sanitary situation. Results obtained at the age of 17 years are: Pinus nigra var. clusiana (Francia): dbh 12,1 cm, height 5.2 m and 10% failures; Pinus nigra var. austriaca (Livo - Italia): dbh 13 cm, height 4.6 m and 25% failures; Pinus nigra var. austriaca (Lasa - Italia): dbh 13,9 cm, height 5.60 m y 0% failures; Pinus nigra var. knin (ex Yugoslavia): dbh 14,1cm, height 6.2 m and 15% failures and Pinus nigra var. pyramidalis (Turquía): dbh 11,6 cm, height 5,8 m and 40% failures. All provenience are in good sanitary shape not registering any pests or diseases affecting the experiment up to date.Fil: Calderón, Alberto. Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias. Departamento de Producción AgropecuariaFil: Bustamante, Juan A.. Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias. Departamento de Producción AgropecuariaFil: Riu, Nuria. Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias. Departamento de Producción AgropecuariaFil: Perez, Silvina. Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias. Departamento de Producción Agropecuari

Causas y efectos de la economia informal: el caso del comercio ambulante en seis ciudades de la Region del Maule

155 p.La economía informal es un fenómeno presente en nuestra sociedad desde hace muchos años. Se ha incrementado en los tiempos de crisis económica y agrupa principalmente a cuenta propistas, mujeres, que ganan menos dinero que el promedio de ingreso nacional. La región del Maule no ha sido la excepción y al igual que en otras regiones se ha visto afectada por está actividad, debemos considerar que está región se caracteriza por tener altas tasas de desempleo. Por la importancia que implica conocer la realidad regional de este fenómeno se ha diseñado este trabajo de investigación destinado a analizar el concepto de economía informal y las variables que influyen en él, caracterizando los participantes de este sector presentes en la Región del Maule. Para nuestro estudio el Universo es la Séptima Región, de la cual se extrajeron las ciudades con mayor población en este último periodo como son las capitales provinciales Cauquenes, Linares, Curicó y Talca más las ciudades de Constitución y Parral. La investigación se realiza vía cuestionario, la cual se aplica en grupos específicos y representativos de este sector de la economía en la Séptima Región. Para el análisis de los datos se utiliza el software estadístico SPSS. Empíricamente se estableció que las mayorías de las personas encuestadas tienen un bajo nivel educacional, con edades que promedian los 45 años, que sus negocios si bien, en la mayoría tenían permiso Municipal para trabajar, no cuentan con las mínimas condiciones que requiere un trabajador como son las inspecciones sanitarias, la seguridad social y laboral. Esta informalidad deja a los comerciantes dedicados a esta actividad en una suerte de desamparo social y laboral ya que no tienen previsión, y en futuro probablemente tampoco una jubilación, entre algunas. Del mismo modo al no contar con fiscalizaciones, no protege al consumidor que puede ser afectado al comprar productos de este sector, en caso de disconformidad no hay legislación que proteja al consumidor