Influence of plant density and hilling on yield and profitability of arrowroot

The global production of arrowroot is minimal, and this may be partially associated to the lack of standardized agronomic techniques for its commercial cultivation. This study aimed to assess the yield and profitability of arrowroot plants (‘Comum’ cultivar) grown using different plant spacings in the cropping row (20 cm, 25 cm, 30 cm and 35 cm) and a varying number of hilling applications (0, 1 and 2). The treatments were arranged in a 4 x 3 factorial scheme, in a randomized experimental block design, with six replications. After harvesting, the fresh and dry matter yields of leaves, rhizomes and roots were determined. Production costs and gross and net incomes were also calculated. The highest yields for fresh leaves (8.75 t ha-1), rhizomes (32.92 t ha-1) and roots (8.45 t ha-1) were obtained with a plant spacing of 20 cm. No interaction between the factors, neither significant differences for the use or not of hilling, were observed on the analyzed variables. The costs per hectare ranged from BRL 8,488.83 (35 cm without hilling) to BRL 10,376.23 (20 cm with two hillings). The highest yields and gross and net incomes were obtained with the spacing of 20 cm between plants

CONSERVAÇÃO DE REPOLHO MINIMAMENTE PROCESSADO SOB EFEITO DE DIFERENTES EMBALAGENS, TEMPO DE ESTOCAGEM E TEMPERATURA

A utilização de atmosfera modificada e redução da temperatura de armazenamento aumentam a vida útil de diversas hortaliças e frutas minimamente processadas. O presente estudo consistiu em avaliar os efeitos de diferentes embalagens, temperaturas e tempo de estocagem (0, 4, 8 e 12 dias) nas propriedades físico-químicas de repolho minimamente processado. As amostras foram acondicionadas em bandeja pet, bandeja de isopor embaladas com filme PVC e em sacos plásticos sob diferentes temperaturas (8 °C, 15 °C e 25 °C), que foram arranjados em esquema fatorial 3 x 3, no delineamento experimental de blocos inteiramente casualizados, com três repetições. Após o processamento do repolho foram retiradas 150 g do material e acondicionado nas diferentes embalagens. De modo geral, observou-se que, independente do tipo de embalagem utilizada, as amostras armazenadas a 15 °C apresentaram os melhores resultados para todas as variáveis analisadas. Este efeito pode ser creditado ao efeito positivo da baixa temperatura na diminuição da concentração de oxigênio e gás carbônico, que em geral, é essencial para a conservação das propriedades físico-químicas do repolho minimamente processado

Multidifferential study of identified charged hadron distributions in ZZ-tagged jets in proton-proton collisions at s=\sqrt{s}=13 TeV

Jet fragmentation functions are measured for the first time in proton-proton collisions for charged pions, kaons, and protons within jets recoiling against a $Z$ boson. The charged-hadron distributions are studied longitudinally and transversely to the jet direction for jets with transverse momentum 20 $< p_{\textrm{T}} < 100$ GeV and in the pseudorapidity range $2.5 < \eta < 4$. The data sample was collected with the LHCb experiment at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 1.64 fb$^{-1}$. Triple differential distributions as a function of the hadron longitudinal momentum fraction, hadron transverse momentum, and jet transverse momentum are also measured for the first time. This helps constrain transverse-momentum-dependent fragmentation functions. Differences in the shapes and magnitudes of the measured distributions for the different hadron species provide insights into the hadronization process for jets predominantly initiated by light quarks.Comment: All figures and tables, along with machine-readable versions and any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2022-013.html (LHCb public pages

Study of the B−→Λc+Λˉc−K−B^{-} \to \Lambda_{c}^{+} \bar{\Lambda}_{c}^{-} K^{-} decay

The decay $B^{-} \to \Lambda_{c}^{+} \bar{\Lambda}_{c}^{-} K^{-}$ is studied in proton-proton collisions at a center-of-mass energy of $\sqrt{s}=13$ TeV using data corresponding to an integrated luminosity of 5 $\mathrm{fb}^{-1}$ collected by the LHCb experiment. In the $\Lambda_{c}^+ K^{-}$ system, the $\Xi_{c}(2930)^{0}$ state observed at the BaBar and Belle experiments is resolved into two narrower states, $\Xi_{c}(2923)^{0}$ and $\Xi_{c}(2939)^{0}$, whose masses and widths are measured to be $$m(\Xi_{c}(2923)^{0}) = 2924.5 \pm 0.4 \pm 1.1 \,\mathrm{MeV}, \\ m(\Xi_{c}(2939)^{0}) = 2938.5 \pm 0.9 \pm 2.3 \,\mathrm{MeV}, \\ \Gamma(\Xi_{c}(2923)^{0}) = \phantom{000}4.8 \pm 0.9 \pm 1.5 \,\mathrm{MeV},\\ \Gamma(\Xi_{c}(2939)^{0}) = \phantom{00}11.0 \pm 1.9 \pm 7.5 \,\mathrm{MeV},$$ where the first uncertainties are statistical and the second systematic. The results are consistent with a previous LHCb measurement using a prompt $\Lambda_{c}^{+} K^{-}$ sample. Evidence of a new $\Xi_{c}(2880)^{0}$ state is found with a local significance of $3.8\,\sigma$, whose mass and width are measured to be $2881.8 \pm 3.1 \pm 8.5\,\mathrm{MeV}$ and $12.4 \pm 5.3 \pm 5.8 \,\mathrm{MeV}$, respectively. In addition, evidence of a new decay mode $\Xi_{c}(2790)^{0} \to \Lambda_{c}^{+} K^{-}$ is found with a significance of $3.7\,\sigma$. The relative branching fraction of $B^{-} \to \Lambda_{c}^{+} \bar{\Lambda}_{c}^{-} K^{-}$ with respect to the $B^{-} \to D^{+} D^{-} K^{-}$ decay is measured to be $2.36 \pm 0.11 \pm 0.22 \pm 0.25$, where the first uncertainty is statistical, the second systematic and the third originates from the branching fractions of charm hadron decays.Comment: All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2022-028.html (LHCb public pages

Measurement of the ratios of branching fractions R(D∗)\mathcal{R}(D^{*}) and R(D0)\mathcal{R}(D^{0})

The ratios of branching fractions $\mathcal{R}(D^{*})\equiv\mathcal{B}(\bar{B}\to D^{*}\tau^{-}\bar{\nu}_{\tau})/\mathcal{B}(\bar{B}\to D^{*}\mu^{-}\bar{\nu}_{\mu})$ and $\mathcal{R}(D^{0})\equiv\mathcal{B}(B^{-}\to D^{0}\tau^{-}\bar{\nu}_{\tau})/\mathcal{B}(B^{-}\to D^{0}\mu^{-}\bar{\nu}_{\mu})$ are measured, assuming isospin symmetry, using a sample of proton-proton collision data corresponding to 3.0 fb${ }^{-1}$ of integrated luminosity recorded by the LHCb experiment during 2011 and 2012. The tau lepton is identified in the decay mode $\tau^{-}\to\mu^{-}\nu_{\tau}\bar{\nu}_{\mu}$. The measured values are $\mathcal{R}(D^{*})=0.281\pm0.018\pm0.024$ and $\mathcal{R}(D^{0})=0.441\pm0.060\pm0.066$, where the first uncertainty is statistical and the second is systematic. The correlation between these measurements is $\rho=-0.43$. Results are consistent with the current average of these quantities and are at a combined 1.9 standard deviations from the predictions based on lepton flavor universality in the Standard Model.Comment: All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2022-039.html (LHCb public pages

VIII Encuentro de Docentes e Investigadores en Historia del Diseño, la Arquitectura y la Ciudad

Acta de congresoLa conmemoración de los cien años de la Reforma Universitaria de 1918 se presentó como una ocasión propicia para debatir el rol de la historia, la teoría y la crítica en la formación y en la práctica profesional de diseñadores, arquitectos y urbanistas. En ese marco el VIII Encuentro de Docentes e Investigadores en Historia del Diseño, la Arquitectura y la Ciudad constituyó un espacio de intercambio y reflexión cuya realización ha sido posible gracias a la colaboración entre Facultades de Arquitectura, Urbanismo y Diseño de la Universidad Nacional y la Facultad de Arquitectura de la Universidad Católica de Córdoba, contando además con la activa participación de mayoría de las Facultades, Centros e Institutos de Historia de la Arquitectura del país y la región. Orientado en su convocatoria tanto a docentes como a estudiantes de Arquitectura y Diseño Industrial de todos los niveles de la FAUD-UNC promovió el debate de ideas a partir de experiencias concretas en instancias tales como mesas temáticas de carácter interdisciplinario, que adoptaron la modalidad de presentación de ponencias, entre otras actividades. En el ámbito de VIII Encuentro, desarrollado en la sede Ciudad Universitaria de Córdoba, se desplegaron numerosas posiciones sobre la enseñanza, la investigación y la formación en historia, teoría y crítica del diseño, la arquitectura y la ciudad; sumándose el aporte realizado a través de sus respectivas conferencias de Ana Clarisa Agüero, Bibiana Cicutti, Fernando Aliata y Alberto Petrina. El conjunto de ponencias que se publican en este Repositorio de la UNC son el resultado de dos intensas jornadas de exposiciones, cuyos contenidos han posibilitado actualizar viejos dilemas y promover nuevos debates. El evento recibió el apoyo de las autoridades de la FAUD-UNC, en especial de la Secretaría de Investigación y de la Biblioteca de nuestra casa, como así también de la Facultad de Arquitectura de la UCC; va para todos ellos un especial agradecimiento

PRODUTIVIDADE AGROECONÔMICA DE CENOURA CULTIVADA COM TIPOS E FORMAS DE ADIÇÃO DE CAMA DE FRANGO AO SOLO

O objetivo do trabalho foi estudar a produtividade agroecon&ocirc;mica da cenoura cultivada com dois tipos de res&iacute;duo base (maravalha e casca de arroz) e diferentes formas de adi&ccedil;&atilde;o de cama de frango ao solo [(10 t ha-1 em cobertura, 10 t ha-1 incorporada, 5 t ha-1 em cobertura + 5 t ha-1 incorporada e testemunha (0 t ha-1)], que foram arranjados no esquema fatorial 2 x 4, no delineamento experimental de blocos casualizados, com quatro repeti&ccedil;&otilde;es.&nbsp;&nbsp; Os tratamentos com a adi&ccedil;&atilde;o da cama de frango foram os que apresentaram os melhores resultados para massa fresca de raiz comercial, com as maiores produtividades obtidas com o uso em cobertura + incorporada e em cobertura, superando em 3,06 (22,43%) e 2,43 t ha-1 (17,81%) a testemunha. Os melhores resultados para massas secas de folhas e raiz comercial foram obtidos pelo uso da cama de frango, superando em 0,04 t ha-1 (22,22%) e 0,04 t ha-1 (18,18%), respectivamente, em rela&ccedil;&atilde;o a testemunha. Concluiu-se que para se obter maiores produtividades de ra&iacute;zes comerciais e maior renda bruta e l&iacute;quida, o cultivo da cenoura deve ser feito com cama de frango adicionada ao solo em cobertura + incorporada, independente do tipo de res&iacute;duo base.&nbsp

CONSERVAÇÃO DE REPOLHO MINIMAMENTE PROCESSADO SOB EFEITO DE DIFERENTES EMBALAGENS, TEMPO DE ESTOCAGEM E TEMPERATURA

A utilização de atmosfera modificada e redução da temperatura de armazenamento aumentam a vida útil de diversas hortaliças e frutas minimamente processadas. O presente estudo consistiu em avaliar os efeitos de diferentes embalagens, temperaturas e tempo de estocagem (0, 4, 8 e 12 dias) nas propriedades físico-químicas de repolho minimamente processado. As amostras foram acondicionadas em bandeja pet, bandeja de isopor embaladas com filme PVC e em sacos plásticos sob diferentes temperaturas (8 °C, 15 °C e 25 °C), que foram arranjados em esquema fatorial 3 x 3, no delineamento experimental de blocos inteiramente casualizados, com três repetições. Após o processamento do repolho foram retiradas 150 g do material e acondicionado nas diferentes embalagens. De modo geral, observou-se que, independente do tipo de embalagem utilizada, as amostras armazenadas a 15 °C apresentaram os melhores resultados para todas as variáveis analisadas. Este efeito pode ser creditado ao efeito positivo da baixa temperatura na diminuição da concentração de oxigênio e gás carbônico, que em geral, é essencial para a conservação das propriedades físico-químicas do repolho minimamente processado

Germination of Salvia splendens L. subjected to salinity

The salinity is a limiting factor for germination to occur in most species being necessary studies that assess the interaction between plants and saline environment to which they are being associated. The present study had as aim to evaluate the germination and characteristics of vigor in Salvia splendens subjected to salinity. The seeds were exposed to different osmotic potentials, simulating salt stress caused by NaCl, KCl and CaCl2 at potentials of 0, -0.4, -0.8, -1.2, -1.6 and -2.0 MPa. In general, CaCl2 led to the best results for all variables, probably connected to the positive effect of Ca2+ in cell metabolism, allowing germination of 60.81% in the osmotic potential of -1.35 MPa