35 research outputs found

    Impact of Different Fertilizer Sources under Supplemental Irrigation and Rainfed Conditions on Eco-Physiological Responses and Yield Characteristics of Dragon’s Head (Lallemantia iberica)

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    The effects of the irrigation regime and different fertilizer sources on the eco-physiological responses and yield characteristics of dragon’s head were explored in a factorial experiment based on a randomized complete block design with 12 treatments and 3 replications in the 2019 growing season. The treatments included six different fertilizer sources (animal manure, vermicompost, poultry manure, biofertilizer, chemical fertilizer, and control) and two irrigation regimes (rainfed and supplemental irrigation). The results indicated the positive effects of supplementary irrigation and the application of vermicompost, poultry manure, and animal manure by increasing the absorption of nutrients (phosphorus and potassium) and improving relative water contents, chlorophyll and carotenoid contents, and the fixed oil percentage of dragon’s head. The activities of catalase, ascorbate peroxidase, and superoxide dismutase decreased in the rainfed plants, whereas organic fertilizer application increased the antioxidant enzyme activity. The highest grain yield (721 kg ha−1), biological yield (5858 kg ha−1), total flavonoids (1.47 mg g−1 DW), total phenol (27.90 mg g−1 DW), fixed oil yield (200.17 kg ha−1), and essential oil yield (1.18 kg ha−1) were noted in plants that were treated with vermicompost under supplemental irrigation. Therefore, it is recommended that organic fertilizers such as vermicompost and poultry manure be used to substitute chemical fertilizers. These practices can help popularize organic crops using rainfed and supplementary irrigation

    Synthesis, Structure, and Biological Assays of Novel Trifluoromethyldiazepine–Metal Complexes

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    A new series of CuII, NiII, CoII, and MnIII complexes have been synthesised from the (6Z)-6-(7-trifluoromethyl-1,2,3,4-tetrahydro-5H-1,4-diazepin-5-ylidene)cyclohexa-2,4-dien-1-one (HDZP) ligand. These complexes were characterised by elemental, spectroscopic (IR and UV-vis), and thermal analysis. The crystal structure of Cu-DZP was solved by X-ray diffraction methods. The complex crystallises in the monoclinic P21/c space group, with two molecules per unit cell. The crystal lattice is stabilised by different intra and intermolecular interactions. Hirshfeld surface analysis was employed to obtain additional information about interactions that are responsible for the crystal packing. Quantitative examination of the fingerprint plots indicated the dominant contribution of H⋯H and H⋯X (X = O, F) interactions in the crystal packing. In addition, C-H⋯chelate ring (CR) and C-Hâ‹ŻÏ€ interactions are described in detail and evaluated using DFT calculations. The antibacterial properties and the mechanism of inhibition of the main bacterial resistant mechanism, the biofilm, of the metal complexes and free ligand were investigated. [Mn(DZP)3]·2H2O was the most active complex against the Pseudomonas aeruginosa biofilm formation with an inhibition of 40 %. However, none of the complexes inhibit more than 25 % of the Gram negative bacteria microbial development. The most meaningful result was the bactericidal effect of [Co(DZP)2(H2O)2]·2H2O against the Gram positive bacteria, Staphylococcus aureus, which inhibits the bacterial development and significantly reduces the biofilm formation at low concentration.Fil: Rocha, Mariana. Universidad Nacional de TucumĂĄn; Argentina. Consejo Nacional de Investigaciones CientĂ­ficas y TĂ©cnicas. Centro CientĂ­fico TecnolĂłgico Conicet - TucumĂĄn. Instituto de QuĂ­mica del Noroeste. Universidad Nacional de TucumĂĄn. Facultad de BioquĂ­mica, QuĂ­mica y Farmacia. Instituto de QuĂ­mica del Noroeste; ArgentinaFil: EcheverrĂ­a, Gustavo Alberto. Facultad de Ciencias Exactas, Universidad Nacional de la Plata; Argentina. Consejo Nacional de Investigaciones CientĂ­ficas y TĂ©cnicas. Centro CientĂ­fico TecnolĂłgico Conicet - La Plata. Instituto de FĂ­sica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de FĂ­sica La Plata; ArgentinaFil: Piro, Oscar Enrique. Facultad de Ciencias Exactas, Universidad Nacional de la Plata; Argentina. Consejo Nacional de Investigaciones CientĂ­ficas y TĂ©cnicas. Centro CientĂ­fico TecnolĂłgico Conicet - La Plata. Instituto de FĂ­sica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de FĂ­sica La Plata; ArgentinaFil: Jios, Jorge Luis. Facultad de Ciencias Exactas, Universidad Nacional de la Plata; ArgentinaFil: Molina, RocĂ­o Daniela InĂ©s. Universidad Nacional de TucumĂĄn; Argentina. Universidad Nacional de TucumĂĄn. Instituto de BiotecnologĂ­a FarmacĂ©utica y Alimentaria. Consejo Nacional de Investigaciones CientĂ­ficas y TĂ©cnicas. Centro CientĂ­fico TecnolĂłgico Conicet - TucumĂĄn. Instituto de BiotecnologĂ­a FarmacĂ©utica y Alimentaria; ArgentinaFil: Arena, Mario Eduardo. Universidad Nacional de TucumĂĄn; Argentina. Universidad Nacional de TucumĂĄn. Instituto de BiotecnologĂ­a FarmacĂ©utica y Alimentaria. Consejo Nacional de Investigaciones CientĂ­ficas y TĂ©cnicas. Centro CientĂ­fico TecnolĂłgico Conicet - TucumĂĄn. Instituto de BiotecnologĂ­a FarmacĂ©utica y Alimentaria; ArgentinaFil: Ulic, Sonia Elizabeth. Facultad de Ciencias Exactas, Universidad Nacional de la Plata; Argentina. Universidad Nacional de LujĂĄn; Argentina. Consejo Nacional de Investigaciones CientĂ­ficas y TĂ©cnicas. Centro CientĂ­fico TecnolĂłgico Conicet - La Plata. Centro de QuĂ­mica InorgĂĄnica "Dr. Pedro J. Aymonino". Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Centro de QuĂ­mica InorgĂĄnica "Dr. Pedro J. Aymonino"; ArgentinaFil: Gil, Diego Mauricio. Universidad Nacional de TucumĂĄn; Argentina. Consejo Nacional de Investigaciones CientĂ­ficas y TĂ©cnicas. Centro CientĂ­fico TecnolĂłgico Conicet - TucumĂĄn. Instituto de QuĂ­mica del Noroeste. Universidad Nacional de TucumĂĄn. Facultad de BioquĂ­mica, QuĂ­mica y Farmacia. Instituto de QuĂ­mica del Noroeste; Argentin

    Synthesis, characterization and crystal structure of 2-chloroethyl(methylsulfonyl)methanesulfonate

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    The aim of this study was to evaluate the structural and vibrational properties and biological activity of 2-chloroethyl(methylsulfonyl)methanesulfonate, CH3SO2CH2SO2OCH2CH2Cl (clomesone). The solid-state molecular structure has been isolated and characterized using experimental (X-ray diffraction) and theoretical (DFT method) methodologies. The molecules are packed through C-H⋯O bifurcated interactions and Cl⋯Cl interactions. The experimental investigations are supplemented by quantum chemical calculations and Hirshfeld surface calculations. Furthermore, the infrared and Raman spectra of the solid phase have been obtained, and the observed bands are assigned to the vibrational normal modes. This study is completed using the atoms-in-molecules (AIM) theory and natural bond orbital (NBO) analysis. Finally, we studied the function of clomesone in biofilm formation and investigated a methanesulfonate complex with respect to QS activity.Fil: GalvĂĄn, Jorge Edgardo. Consejo Nacional de Investigaciones CientĂ­ficas y TĂ©cnicas. Centro CientĂ­fico TecnolĂłgico Conicet - TucumĂĄn. Instituto de QuĂ­mica del Noroeste. Universidad Nacional de TucumĂĄn. Facultad de BioquĂ­mica, QuĂ­mica y Farmacia. Instituto de QuĂ­mica del Noroeste; ArgentinaFil: Defonsi Lestard, Maria Eliana. Consejo Nacional de Investigaciones CientĂ­ficas y TĂ©cnicas. Centro CientĂ­fico TecnolĂłgico Conicet - TucumĂĄn. Instituto de QuĂ­mica del Noroeste. Universidad Nacional de TucumĂĄn. Facultad de BioquĂ­mica, QuĂ­mica y Farmacia. Instituto de QuĂ­mica del Noroeste; ArgentinaFil: Piro, Oscar Enrique. Consejo Nacional de Investigaciones CientĂ­ficas y TĂ©cnicas. Centro CientĂ­fico TecnolĂłgico Conicet - La Plata. Instituto de FĂ­sica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de FĂ­sica La Plata; ArgentinaFil: EcheverrĂ­a, Gustavo Alberto. Consejo Nacional de Investigaciones CientĂ­ficas y TĂ©cnicas. Centro CientĂ­fico TecnolĂłgico Conicet - La Plata. Instituto de FĂ­sica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de FĂ­sica La Plata; ArgentinaFil: Molina, RocĂ­o Daniela InĂ©s. Universidad Nacional de TucumĂĄn. Instituto de BiotecnologĂ­a FarmacĂ©utica y Alimentaria. Consejo Nacional de Investigaciones CientĂ­ficas y TĂ©cnicas. Centro CientĂ­fico TecnolĂłgico Conicet - TucumĂĄn. Instituto de BiotecnologĂ­a FarmacĂ©utica y Alimentaria; ArgentinaFil: Arena, Mario Eduardo. Universidad Nacional de TucumĂĄn. Instituto de BiotecnologĂ­a FarmacĂ©utica y Alimentaria. Consejo Nacional de Investigaciones CientĂ­ficas y TĂ©cnicas. Centro CientĂ­fico TecnolĂłgico Conicet - TucumĂĄn. Instituto de BiotecnologĂ­a FarmacĂ©utica y Alimentaria; ArgentinaFil: Ulic, Sonia Elizabeth. Consejo Nacional de Investigaciones CientĂ­ficas y TĂ©cnicas. Centro CientĂ­fico TecnolĂłgico Conicet - La Plata. Centro de QuĂ­mica InorgĂĄnica "Dr. Pedro J. Aymonino". Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Centro de QuĂ­mica InorgĂĄnica "Dr. Pedro J. Aymonino"; Argentina. Universidad Nacional de LujĂĄn. Departamento de Ciencias BĂĄsicas; ArgentinaFil: Tuttolomondo, MarĂ­a Eugenia. Consejo Nacional de Investigaciones CientĂ­ficas y TĂ©cnicas. Centro CientĂ­fico TecnolĂłgico Conicet - TucumĂĄn. Instituto de QuĂ­mica del Noroeste. Universidad Nacional de TucumĂĄn. Facultad de BioquĂ­mica, QuĂ­mica y Farmacia. Instituto de QuĂ­mica del Noroeste; ArgentinaFil: Ben Altabef, AĂ­da. Consejo Nacional de Investigaciones CientĂ­ficas y TĂ©cnicas. Centro CientĂ­fico TecnolĂłgico Conicet - TucumĂĄn. Instituto de QuĂ­mica del Noroeste. Universidad Nacional de TucumĂĄn. Facultad de BioquĂ­mica, QuĂ­mica y Farmacia. Instituto de QuĂ­mica del Noroeste; Argentin

    Synthesis, characterization and crystal structure of 2-chloroethyl(methylsulfonyl)methanesulfonate

    Get PDF
    The aim of this study was to evaluate the structural and vibrational properties and biological activity of 2-chloroethyl(methylsulfonyl)methanesulfonate, CH3SO2CH2SO2OCH2CH2Cl (clomesone). The solid-state molecular structure has been isolated and characterized using experimental (X-ray diffraction) and theoretical (DFT method) methodologies. The molecules are packed through C-H⋯O bifurcated interactions and Cl⋯Cl interactions. The experimental investigations are supplemented by quantum chemical calculations and Hirshfeld surface calculations. Furthermore, the infrared and Raman spectra of the solid phase have been obtained, and the observed bands are assigned to the vibrational normal modes. This study is completed using the atoms-in-molecules (AIM) theory and natural bond orbital (NBO) analysis. Finally, we studied the function of clomesone in biofilm formation and investigated a methanesulfonate complex with respect to QS activity.Centro de Química InorgánicaInstituto de Física La Plat

    Anålisis técnico-económico sobre la decisión de reforzamiento o construcción nueva de la estructura de un centro educativo

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    La siguiente investigaciĂłn se realiza por la necesidad de conocer alternativas que cambien la situaciĂłn de distintos centros educativos que en los Ășltimos años se han visto muy afectados a causa de los sismos ocurridos en nuestro paĂ­s. Es de suma importancia conocer si los distintos centros educativos resistirĂĄn a sismos de grandes magnitudes y si necesitan un reforzamiento estructural para que presenten un buen desempeño o serĂĄ necesario su demoliciĂłn y una posterior reconstrucciĂłn de acuerdo a las nuevas normas de diseño sismorresistente. El objetivo general del presente proyecto de investigaciĂłn consiste en definir la opciĂłn Ăłptima en tĂ©rminos tĂ©cnico-econĂłmicos entre las dos alternativas planteadas; la demoliciĂłn y posterior reconstrucciĂłn de la estructura, o el reforzamiento de la estructura. Se usan como base en el siguiente proyecto distintas investigaciones de reforzamiento sĂ­smico de los centros educativos en el PerĂș, investigaciones que persisten en evaluar la vulnerabilidad sĂ­smica. En el presente trabajo se analizan de manera tĂ©cnica y econĂłmica dos alternativas de reforzamiento en sentido longitudinal que serĂĄn la colocaciĂłn de aletas de concreto armado y el cierre de paños con albañilerĂ­a, mĂ©todos que serĂĄn aplicados en un pabellĂłn tĂ­pico considerando parĂĄmetros mĂĄs desfavorables para posteriormente determinar la mejor opciĂłn respecto al costo de reparaciĂłn o de construcciĂłn de un nuevo centro educativo. Finalmente, en esta investigaciĂłn se concluye que es necesario tener no solo un anĂĄlisis tĂ©cnico sino tambiĂ©n econĂłmico ya que en los proyectos de gran envergadura, en el paĂ­s, cada nuevo sol (S/.) es vital para la elecciĂłn de la mejor alternativa de mejoramiento o saneamiento de infraestructuras y se recomienda que las futuras edificaciones de centros educativos sean construidas bajo el sistema de pĂłrticos duales, ademĂĄs de aislar la tabiquerĂ­a de las columnas a fin de evitar la falla de columna corta que es tan recurrente.Trabajo de investigaciĂł

    Synthesis, structure, and biological assays of novel trifluoromethyldiazepine–metal complexes

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    A new series of CuII, NiII, CoII, and MnIII complexes have been synthesised from the (6Z)-6-(7-trifluoromethyl-1,2,3,4-tetrahydro-5H-1,4-diazepin-5-ylidene)cyclohexa-2,4-dien-1-one (HDZP) ligand. These complexes were characterised by elemental, spectroscopic (IR and UV-vis), and thermal analysis. The crystal structure of Cu-DZP was solved by X-ray diffraction methods. The complex crystallises in the monoclinic P21/c space group, with two molecules per unit cell. The crystal lattice is stabilised by different intra and intermolecular interactions. Hirshfeld surface analysis was employed to obtain additional information about interactions that are responsible for the crystal packing. Quantitative examination of the fingerprint plots indicated the dominant contribution of H⋯H and H⋯X (X = O, F) interactions in the crystal packing. In addition, C–H⋯chelate ring (CR) and C–Hâ‹ŻÏ€ interactions are described in detail and evaluated using DFT calculations. The antibacterial properties and the mechanism of inhibition of the main bacterial resistant mechanism, the biofilm, of the metal complexes and free ligand were investigated. [Mn(DZP)₃]·2H₂O was the most active complex against the Pseudomonas aeruginosa biofilm formation with an inhibition of 40 %. However, none of the complexes inhibit more than 25 % of the Gram negative bacteria microbial development. The most meaningful result was the bactericidal effect of [Co(DZP)₂(H₂O)₂]·2H₂O against the Gram positive bacteria, Staphylococcus aureus, which inhibits the bacterial development and significantly reduces the biofilm formation at low concentration.Instituto de FĂ­sica La PlataPlanta Piloto MultipropĂłsito - Laboratorio de Servicios a la Industria y al Sistema CientĂ­ficoCentro de QuĂ­mica InorgĂĄnic

    Factors Associated with Emotion Regulation in Men with Internet Access Living in Brazil during the COVID-19 Pandemic

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    Publisher Copyright: © 2022 by the authors. Licensee MDPI, Basel, Switzerland.Objective: to evaluate the factors associated with emotion regulation in men with internet access living in Brazil during the COVID-19 pandemic. Method: an epidemiological survey, conducted with 1015 men. An electronic form was applied containing sociodemographic and occu-pational characteristics, support and coping strategies, as well as emotional and behavioral aspects. Emotion regulation was assessed using the Emotion Regulation Questionnaire. Results: The prevalence values observed were 44.6% for Low Cognitive Reappraisal and of 47.1% for High Emotional Sup-pression. The following factors were identified as associated: (a) with Low Cognitive Reappraisal: being aged 30 years old or more, practicing physical activity, worrying about social distancing and having positive emotions and feelings; and (b) with High Emotional Suppression: being heterosexual, non-white race/skin color, having security support or public administration, not sanitizing food, worrying about lack of physical activity and not having negative emotions. Conclusion: the adoption of emotion regulation strategies was associated with individual, contextual and emotional/behavioral characteristics. Masculinity ideals seem to exert an influence on these relationships.publishersversionpublishe

    Prospective validation of the CLIP score: a new prognostic system for patient with cirrhosis and hepatocellular carcinoma

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    Prognosis of patients with cirrhosis and hepatocellular carcinoma (HCC) depends on both residual liver function and tumor extension. The CLIP score includes Child-Pugh stage, tumor morphology and extension, serum alfa-fetoprotein (AFP) levels, and portal vein thrombosis. We externally validated the CLIP score and compared its discriminatory ability and predictive power with that of the Okuda staging system in 196 patients with cirrhosis and HCC prospectively enrolled in a randomized trial. No significant associations were found between the CLIP score and the age, sex, and pattern of viral infection. There was a strong correlation between the CLIP score and the Okuda stage, As of June 1999, 150 patients (76.5%) had died. Median survival time was 11 months, overall, and it was 36, 22, 9, 7, and 3 months for CLIP categories 0, 1, 2, 3, and 4 to 6, respectively. In multivariate analysis, the CLIP score had additional explanatory power above that of the Okuda stage. This was true for both patients treated with locoregional therapy or not. A quantitative estimation of 2-year survival predictive power showed that the CLIP score explained 37% of survival variability, compared with 21% explained by Okuda stage. In conclusion, the CLIP score, compared with the Okuda staging system, gives more accurate prognostic information, is statistically more efficient, and has a greater survival predictive power. It could be useful in treatment planning by improving baseline prognostic evaluation of patients with RCC, and could be used in prospective therapeutic trials as a stratification variable, reducing the variability of results owing to patient selection
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