Статті в журналах: "Salvia argentea"

1

Bruno, Maurizio, Giuseppe Savona, Juan A. Hueso-Rodríguez, Conrad Pascual, and Benjamín Rodríguez. "Ursane and oleanane triterpenoids from Salvia argentea." Phytochemistry 26, no. 2 (January 28, 1987): 497–501. http://dx.doi.org/10.1016/s0031-9422(00)81441-7.

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Mossi, AJ, RL Cansian, N. Paroul, G. Toniazzo, JV Oliveira, MK Pierozan, G. Pauletti, L. Rota, ACA Santos, and LA Serafini. "Morphological characterisation and agronomical parameters of different species of Salvia sp. (Lamiaceae)." Brazilian Journal of Biology 71, no. 1 (February 2011): 121–29. http://dx.doi.org/10.1590/s1519-69842011000100018.

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The aim of this work is to assess the morphological characteristics and parameters of biomass production, such as fresh and dry matter weight (FMW and DMW, g/plant), yield of dry matter (YDM) in terms of ton/ha, essential oil content (EOC, mL/100 g) and yield of essential oils (YEO) expressed as L/ha of the following plants Salvia verbenaca, Salvia argentea, Salvia lavandulifolia, Salvia pratensis, Salvia sclarea, Salvia triloba and Salvia officinalis. Except for Salvia argentea (S2) all other species have adapted to the south Brazilian climate conditions, with morphological differences among the species evaluated. In terms of DMW and YDM, S. officinalis was found to be the most productive species with 445.83 g/plant and 11.14 ton/ha. The higher essential oil content and yield was observed for S. officinalis, affording 1.99 mL/100 g and 221.74 L/ha, respectively. Chemical characterisation of the essential oils obtained from hydrodistillation was performed through GC and GC/MSD analyses, which revealed for most of the species studied, α e β-thujone, camphor and 1,8-cineole as major compounds, apart from S. sclarea, for which linalool, linalyl acetate and α-terpineol were the major components.

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Calderón-Oropeza, Mónica A., Ernesto Ramírez-Briones, Gabriela Rodríguez-García, José L. Salvador-Hernández, Brenda Y. Bedolla-Garcí, Sergio Zamudio, Luis D. Maldonado-Bonilla, Rosa E. Del Río, and Mario A. Gómez-Hurtado. "Metabolic Correlations of Salvia dugesii Fernald and Salvia gesneriiflora Lindl. & Paxton with Native Salvia Plants from Four Continents Using Essential Oils Compositions." Records of Natural Products 15, no. 4 (April 17, 2021): 312–23. http://dx.doi.org/10.25135/rnp.223-19.121912.

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Several applications of natural products around the world arise from traditional knowledge or evident organoleptic properties, and essential oils from Salvia species are a current example. The genus is integrated by native and endemic species from Africa, the Americas, Asia, and Europe. In the present work, essential oil compositions of Salvia dugesii and S. gesneriiflora were experimentally determined and statistically correlated with ten described Salvia species from four continents by using multivariate methods complemented with univariate analysis and PCA protocols, to establish metabolic approaches. Essential oils data from S. angulata, S. miltiorrhiza, S. plebeia, S. sclarea, S. argentea, S. viridis, S. lavandulifolia, S. africana-lutea, S. chamelaeagnea, and S. officinalis were included in the study. By the above, 146 essential oil components, classified into 29 structural skeletons, according to its biogenesis, were analyzed. The results provided metabolic similarities between American and Asian Salvia species due to a higher active sesquiterpene metabolism; and African and European species revealed chemical similarities, since monoterpene pathways dominate. Such correlations are in concordance with genetic knowledge about genus, thereby, approaches on metabolism of Salvia can be easily visualized using statistical tools, consequently, practical method to analyze Salvias for scientific proposes.

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4

Benabdesslem, Yasmina, Kadda Hachem, Khaled Kahloula, and Miloud Slimani. "An ethnopharmacological study of Salvia Argentea used by the local people of Saida in northwestern Algeria." South Asian Journal of Experimental Biology 8, no. 4 (April 25, 2019): 149–53. http://dx.doi.org/10.38150/sajeb.8(4).p149-153.

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This ethnopharmacological survey is a first study to assess the traditional uses of Salvia argentea by the local people of Saida, located in the north-western region of Algeria. This plant belonging to the Lamiaceae family, orig-inating from North Africa, is still relatively little studied in Algeria and has no application in conventional medicine. Out of a total of 500 people from the local population interviewed individually, 405 people, including 304 women and 101 men, reported using S. argentea, aged 20 to 90 years, 34.57% of whom are illiterate. Thus, the survey showed that S. argentea is generally used in the treatment of respiratory diseases (93.33%). The leaves are the most commonly used part (87.41%), prepared mainly in powder form (71.60%) and administered exclusively orally (99.51%). The survey collected very valuable information on the traditional therapeutic uses of S. argentea by the study population and for the national pharmacopoeia. This collected information can be considered as a starting point for modern scientific re-search in order to discover new natural molecules with therapeutic interests.

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5

Rosúa, José Luis, and Gabriel Blanca. "ON THE TYPIFICATION OF SALVIA SCLAREA AND S. ARGENTEA (LAMIACEAE)." TAXON 35, no. 4 (November 1986): 718–19. http://dx.doi.org/10.2307/1221625.

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6

Bechkri, Sara, Abdulmagid Alabdul Magid, Laurence Voutquenne-Nazabadioko, Djemaa Berrehal, Ahmed Kabouche, Meryem Lehbili, Hichem Lakhal, et al. "Triterpenes from Salvia argentea var. aurasiaca and their antibacterial and cytotoxic activities." Fitoterapia 139 (November 2019): 104296. http://dx.doi.org/10.1016/j.fitote.2019.104296.

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7

Michavila, Antonio, María C. De La Torre, and Benjamín Rodríguez. "20-Nor-abietane and rearranged abietane diterpenoids from the root of Salvia argentea." Phytochemistry 25, no. 8 (July 1986): 1935–37. http://dx.doi.org/10.1016/s0031-9422(00)81178-4.

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8

Lakhal, Hichem, Ahmed Kabouche, Abdulmagid Alabdul Magid, Laurence Voutquenne-Nazabadioko, Dominique Harakat, and Zahia Kabouche. "Triterpenoids from Salvia argentea var. aurasiaca (Pomel) Batt. & Trab. and their chemotaxonomic significance." Phytochemistry 102 (June 2014): 145–51. http://dx.doi.org/10.1016/j.phytochem.2014.03.009.

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9

Runkle, Erik S., Catherine M. Whitman, and Mike Olrich. "(82) Determining Effects of a Uniconazole Drench on Celosia, Petunia, Salvia, and Tagetes." HortScience 41, no. 4 (July 2006): 1067B—1067. http://dx.doi.org/10.21273/hortsci.41.4.1067b.

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Uniconazole is a plant growth regulator used to inhibit internode elongation on container-grown ornamental plants. Uniconazole is effective on a wide range of plants, but is not commonly used on bedding plants because of concerns about stunting and flowering delay. Our objective was to determine the effectiveness of uniconazole when used as a drench, eliminating the variability inherent in a spray application. Seedlings of Celosia argentea L. var. plumosa L. `Fresh Look Red', Petunia ×hybrida Vilm.-Andr. `Prostrate Wave Rose', Salvia splendens Sell ex Roem. & Schult. `Vista Red', and Tagetes erecta L. `Inca II Gold' in 288-cell plug trays were transplanted 2 days after arrival into 10-cm pots filled with a soilless medium containing no bark. Plants were placed in a greenhouse with a setpoint of 20 °C and under a 16-h photoperiod provided by high-pressure sodium lamps. A single drench application of 0, 0.04, 0.07, 0.15, or 0.30 mg active ingredient/pot was made 11 days after transplant. The uniconazole drench inhibited internode elongation in these species and higher rates provided a greater degree of response. At time of flowering, the 0.30-mg uniconazole drench inhibited shoot length in Celosia, Petunia, Salvia, and Tagetes by 36%, 23% 26%, and 13%, respectively. Drenches of 0.04 or 0.07 mg provided a desirable degree of height control for Celosia and Salvia. For vigorous species like Petunia or Tagetes, 0.15 to 0.30 mg may be more appropriate. We observed a 1- or 2-day delay in flowering of Salvia and Tagetes plants drenched with 0.30 mg, but no delays in Petunia flowering.

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10

Riccobono, Luana, Antonella Maggio, Sergio Rosselli, Vincenzo Ilardi, Felice Senatore, and Maurizio Bruno. "Chemical composition of volatile and fixed oils from of Salvia argentea L. (Lamiaceae) growing wild in Sicily." Natural Product Research 30, no. 1 (April 16, 2015): 25–34. http://dx.doi.org/10.1080/14786419.2015.1030742.

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11

Farhat, Mouna Ben, Ahmed Landoulsi, Rym Chaouch-Hamada, Jose A. Sotomayor, and María J. Jordán. "Profiling of essential oils and polyphenolics of Salvia argentea and evaluation of its by-products antioxidant activity." Industrial Crops and Products 47 (May 2013): 106–12. http://dx.doi.org/10.1016/j.indcrop.2013.02.007.

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12

Dunn, Scott, James E. Klett, and David Staats. "Preemergent Weed Control in Container-grown Herbaceous Perennials." HortScience 33, no. 3 (June 1998): 484d—484. http://dx.doi.org/10.21273/hortsci.33.3.484d.

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During the 1997 season, preemergent herbicides were applied to container-grown herbaceous perennials and evaluated on the basis of weed control, phytotoxicity, and effect on plant growth. The herbicides and rates were: Napropamide (Devrinol 10G), 0.72 and 1.44 kg a.i./ha; Oryzalin (Surflan 40AS), 0.36 and 0.72 kg a.i./ha; Oxadiazon (Ronstar 2G), 0.72 and 1.44 kg a.i./ha; Oxyfluorfen + Oryzalin (Rout 3G), 0.54 and 2.16 kg a.i./ha; Oxyfluorfen + Pendimethalin (Scott's OH II), 0.54 and 1.09 kg a.i./ha; and Trifluralin (Treflan 5G), 0.72 and 1.44 kg a.i./ha. Herbicides were applied to Phalaris arundinacea `Picta', Scabiosa caucasica, Sedum spectabile `Autumn Joy', Pennisetum setaceum `Rubrum', and Salvia argentea. Phytotoxicity symptoms (visual defects and lower dry weights) were apparent with Napropamide on Phalaris (at both rates). All herbicides provided good weed control.

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13

Klett, James E., Laurel Potts, and David Staats. "018 Preemergent Weed Control in Container-grown Herbaceous Perennials." HortScience 34, no. 3 (June 1999): 444A—444. http://dx.doi.org/10.21273/hortsci.34.3.444a.

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During the 1998 season, preemergent herbicides were applied to container-grown herbaceous perennials and evaluated on the basis of weed control, phytotoxicity, and effect on plant growth. The herbicides and rates were: Napropamide (Devrinol 10G), 0.72 and 1.44 kg a.i./ha; Oryzalin (Surflan 40AS), 0.36 and 0.72 kg a.i./ha; Oxadiazon (Ronstar 2G), 0.72 and 1.44 kg a.i./ha; Oxyfluorfen + Oryzalin (Rout 3G), 0.54 and 2.16 kg a.i./ha; Oxyfluorfen + Pendimethalin (Scott's OH II), 0.54 and 1.09 kg a.i./ha; and Trifluralin (Treflan 5G), 0.72 and 1.44 kg a.i./ha. Herbicides were applied to Phalaris arundinacea `Picta', Scabiosa caucasica, Sedum × `Autumn Joy', Pennisetum setaceum `Rubrum', Salvia argentea, Penstemon × mexicali `Red Rocks', Osteospermum barberiae v. compactum `Purple Mountain', and Gazania linearis `Colorado Gold'. Phytotoxicity symptoms (visual defects) were apparent with Napropamide on Phalaris (at both rates) but recovered by the end of season. All herbicides provided good weed control.

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14

Benabdesslem, Yasmina, Kadda Hachem, Khaled Kahloula, and Miloud Slimani. "Ethnobotanical Survey, Preliminary Physico-Chemical and Phytochemical Screening of Salvia argentea (L.) Used by Herbalists of the Saïda Province in Algeria." Plants 6, no. 4 (December 5, 2017): 59. http://dx.doi.org/10.3390/plants6040059.

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15

Scoggins, Holly L., Douglas A. Bailey, and Paul V. Nelson. "Efficacy of the Press Extraction Method for Bedding Plant Plug Nutrient Monitoring." HortScience 37, no. 1 (February 2002): 108–12. http://dx.doi.org/10.21273/hortsci.37.1.108.

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There is a need for a substrate testing method suited for plug plant production. Methods currently used by most growers and analytical labs include the saturated media extract (SME) and the 2 water: 1 substrate (v/v) suspension. These methods are not particularly well-adapted to plug production. The press extraction (PE) method has been developed as a simple and quick alternative to these methods. However, interpretive standards for chemical analysis of plug substrates do not exist for PE. This study was designed to provide the necessary correlations between these methods to allow for development of pH, electrical conductivity (EC), and nutrient interpretive ranges for plugs. Plugs of begonia (Begonia ×semperflorens-hybrida Hort.), impatiens (Impatiens walleriana Hook. f.), marigold (Tagetes erecta L.), petunia (Petunia ×hybrida Hort. Vilm.-Andr.), salvia (Salvia splendens F. Sellow ex Roem. & Schult.), and vinca (Catharanthus roseus L.) were collected from commercial greenhouses and the substrate solution extracted with the PE, SME, and 1:2 methods. Plugs of begonia, celosia (Celosia argentea L. var. cristata (L.) Kuntze Plumosa Group), marigold, petunia, and vinca were grown with three fertilizer rates of 50, 150, and 250 mg·L-1 N. Shoots were harvested 30 days after planting and the solution was extracted from each flat using the three methods. For both experiments, PE EC was equal to or higher than the SME EC, and the pH was equal to or lower than the SME pH. The pH from the 1:2 was also similar to the PE. However, 1:2 EC results were consistently the lowest because of the dilution inherent in the 1:2 method. Interpretation ranges for pH and EC relationships were calculated to compare results from the PE with published sufficiency ranges for the SME and 1:2.

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Yıldırım, Ali, Ahmet Mavi, Münir Oktay, Ayşe Aydan Kara, Ömer Faruk Algur, and Vahit Bilaloǧlu. "Comparison of Antioxidant and Antimicrobial Activities of Tilia (Tilia Argentea Desf Ex DC), Sage (Salvia Triloba L.),and Black Tea (Camellia Sinensis) Extracts." Journal of Agricultural and Food Chemistry 48, no. 10 (October 2000): 5030–34. http://dx.doi.org/10.1021/jf000590k.

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17

Henson, M. S., S. R. Sharpe, and I. M. Meadows. "Annuals and Herbaceous Perennials Tolerant or Resistant to Phytophthora Species in the Landscape1." Journal of Environmental Horticulture 38, no. 3 (September 1, 2020): 107–13. http://dx.doi.org/10.24266/0738-2898-38.3.107.

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Abstract Plants of one or two cultivars of 16 annuals and 14 herbaceous perennials were evaluated based on desirability and anecdotal evidence of resistance to Phytophthora root or crown rot. Six plant cultivars served as susceptible controls. Three landscape beds were established in North Carolina and each was infested with three species of Phytophthora: P. nicotianae, P. drechsleri, and P. tropicalis. Plants were regularly rated for disease incidence and symptomatic plants were assayed to determine the presence of Phytophthora species. Ten cultivars of annuals and seven cultivars of herbaceous perennials did not exhibit symptoms of Phytophthora root or crown rot or other disease throughout the season (June 4 to October 15, 2018). Phytophthora spp. were recovered from seven and six cultivars of the evaluated annuals and herbaceous perennials, respectively. Phytophthora nicotianae, P. drechsleri, or P. cryptogea were recovered from a susceptible host in each landscape bed. P. tropicalis was recovered from one plant cultivar evaluated. Phytophthora cryptogea was recovered from three plant cultivars, although this species was not intentionally introduced in the landscape beds. We identified 22 plant cultivars within 13 herbaceous plant species that grew vigorously in landscape beds infested with species of Phytophthora. Index words: bedding plants, disease resistance, herbaceous perennials, landscape plants, Phytophthora nicotianae, Phytophthora drechsleri, Phytophthora tropicalis. Species used in this study: yarrow (Achillea millefolium L. ‘Desert Eve Red'), fernleaf yarrow (Achillea filipendulina Lam. ‘Moonshine Yellow'), angelonia (Angelonia angustifolia Benth. ‘ArchAngel Pink', ‘Serenita White'), annual vinca (Catharanthus roseus (L.) G. Don ‘Cora Apricot', ‘Cora Strawberry', ‘Pacifica Raspberry'), celosia (Celosia argentea L. ‘New Look'), tickseed (Coreopsis auriculata L. ‘Nana', ‘Yellow Jethro Tull'), purple coneflower (Echinacea purpurea (L.) Moench ‘Cheyenne Spirit', ‘PowWow Wild Berry'), blanket flower (Gaillardia x grandiflora Hort. ‘Goblin', ‘Mesa Bi-color'), Barberton daisy (Gerbera jamesonii Bolus ex Hooker f. ‘Crazy Daisy'), verbena (Glandularia canadensis ‘Homestead Purple'), >dusty miller (Jacobaea maritima (L.) Pelser & Meijden ‘Silver Dust'), New Guinea impatiens (Impatienshawkeri W.Bull ‘Hamony', ‘Sunpatiens Compact Orchid', ‘Sunpatiens Lilac'), sweet potato vine (Ipomoea batatas (L.) Lam. ‘Ace of Spades', ‘Bright Idea Tri-color'), West Indian lantana (Lantana camara L. ‘Miss Huff'), lantana (Lantana x hybrida ‘New Gold'), shasta daisy (Leucanthemum x superbum (Bergmans ex J.W. Ingram) Bergmans ex Kent. ‘Becky', ‘Snow Lady'), bee balm (Monarda didyma L. ‘Petite Delight', ‘Jacob Cline'), ornamental grass (Panicum virgatum L. ‘Rotstrahlbusch', ‘Shenandoah'), geranium (Pelargonium x hortorum L.H. Bailey (pro. sp.) ‘Bullseye Cherry', Calliope Dark Red'), calibrachoa (Petunia x calibrachoa ‘Super Cal'), petunia (Petunia x hybrida (Hooker) Vilmorin ‘Easy Wave Red', ‘Easy Wave White', ‘Wave Purple', ‘Yellow Madness', Violet Picotee'), annual phlox (Phlox drummondii Hook. ‘Intensia Red Hot', ‘Phlox Star'), garden phlox (Phlox paniculata L. ‘Amethyst True Gal'), black-eyed susan (Rudbeckia hirta L. ‘Indian Summer', ‘Prairie Sun'), mealy blue sage (Salvia farinacea Benth. ‘Victoria Blue'), African marigold (Tagetes erecta L. ‘Inca Yellow', ‘Proud Yellow'), French marigold (Tagetes patula L. ‘Disco Mix', ‘Disco Yellow'), narrowleaf zinnia (Zinnia angustifolia Kunth. ‘Star Orange', ‘Star White'), Phytophthora nicotianae Breda de Haan, Phytophthora cryptogea Pethybr. and Laff, Phytophthora drechsleri Tucker, Phytophthora tropicalis Aragaki and J.Y. Uchida, zinnia (Zinnia elegans Jacq. ‘Magellan Orange').

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ALBERTO, CECILIA M., A. MARIEL SANSO, and CECILIA C. XIFREDA. "Chromosomal studies in species of Salvia (Lamiaceae) from Argentina." Botanical Journal of the Linnean Society 141, no. 4 (March 28, 2003): 483–90. http://dx.doi.org/10.1046/j.1095-8339.2003.t01-1-00178.x.

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19

Sucari, Ana Laura. "Efectos y sentidos de la palabra de los represores." Sociohistórica, no. 47 (March 1, 2021): e137. http://dx.doi.org/10.24215/18521606e137.

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20

Madia, M., and S. Gaetán. "Outbreak of Powdery Mildew on Common Sage in Argentina." Plant Disease 89, no. 8 (August 2005): 911. http://dx.doi.org/10.1094/pd-89-0911c.

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Common sage, Salvia officinalis L., is produced primarily in greenhouses for the culinary herb market in Argentina. Since 2003 during autumn and winter, powdery mildew symptoms have been repeatedly observed on potted common sage plants in commercial greenhouses located on the outskirts of Buenos Aires. The average disease incidence during this period was 85 to 90%. Circular, white, powdery patches developed on leaf surfaces and stems. Heavily infected leaves turned brown and died. Hyaline mycelium and nonlobed appressoria were observed. Conidiophores were simple with straight foot cells measuring 53.0 to 80.0 × 10.0 to 12.3 μm. Conidia were aseptate, hyaline, cylindrical to ovoid, measured 33.0 to 40.5 × 15.0 to 18.5 μm, did not contain fibrosine bodies, and were produced in chains. Cleistothecia were not observed. The pathogen was identified as Erysiphe cichoracearum DC (1). Pathogenicity was confirmed by gently pressing leaves displaying abundant sporulation onto the adaxial surface of healthy leaves. After 10 to 12 days, typical signs and symptoms of powdery mildew appeared on all inoculated plants. Pathogenicity tests were conducted in a greenhouse at 20 to 23°C and included 10 sage plants (five inoculated and five noninoculated). The experiment was performed twice, each time with the same result. Control plants did not show any signs or symptoms. E. cichoracearum DC was previously reported in the United States on Salvia sp. (2).To our knowledge, this is the first report of an outbreak of powdery mildew caused by E. cichoracearun on potted common sage plants produced in greenhouses in Argentina. References: (1) H. J. Boesewinkel. Rev. Mycol. Tome 41:493, 1977. (2) D. F. Farr et al. Fungi on Plants and Plant Products in the United States. The American Phytopathological Society, St. Paul, MN, 1989.

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Capitani, Marianela I., Vanesa Y. Ixtaina, Susana M. Nolasco, and Mabel C. Tomás. "Microstructure, chemical composition and mucilage exudation of chia (Salvia hispanica L.) nutlets from Argentina." Journal of the Science of Food and Agriculture 93, no. 15 (September 4, 2013): 3856–62. http://dx.doi.org/10.1002/jsfa.6327.

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22

Criscuolo, MI, PA Belardinelli, RA Morelatto, J. Mosmann, RF Venezuela, AX Kiguen, C. Cuffini, and S. Lopez de Blanc. "Prevalence of oral human papillomavirus (HPV) in the adult population of Córdoba, Argentina." Translational Research in Oral Oncology 3 (January 1, 2018): 2057178X1875733. http://dx.doi.org/10.1177/2057178x18757334.

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Objective: To determine the prevalence of oral human papillomavirus (HPV) in the population of Córdoba, Argentina and its association with other risk factors. Methods: A sample of 401 volunteers over 18 years, representative of Cordoba city population, was selected. Using a questionnaire, we collected sociodemographic data including the use of tobacco, alcohol, and mate consumption. Two biological samples were taken from each individual, whole mouth saliva and a scraping of the posterior border of the tongue. HPV was determined by polymerase chain reaction using MY09/11 primers. Statistical associations were analyzed using χ2 test. Results: Prevalence of HPV in the population was of 3% (13/401). The mean age of HPV-positive cases was 42 years with a range of 20–85; 54% were females. Among the 13 cases whose saliva was positive for HPV, only 7 (54%) had HPV-DNA in the tongue scraping. All identified genotypes were of low risk and HPV11 was the most frequent type in 62% of positive cases. None of the positive subjects exhibited oral lesions compatible with HPV infection. Ten (77%) of the HPV-positive subjects exhibited lesions in the oral mucosa, mostly related to chronic mechanical irritation (CMI) (odds ratio 3, 95% confidence interval: 1.01–8.97, p < 0.05). Fifty-four percent of HPV-positive individuals were light smokers and consumed alcohol moderately. The combination of both habits was observed in 31%. Sixty-two percent drank mate at high water temperatures. No differences were detected in the sexual behavior or in the reported number of sexual partners between HPV-positive and -negative subjects. Conclusion: The overall prevalence of oral HPV in adults was 3%; only the low-risk genotypes were detected and no association with other risk factors for oral cancer was found. However, an association with CMI of the oral mucosa was noted. The saliva sample proved to be a simple, efficient, and well-tolerated method suitable for screening for HPV, and more cases were detected in saliva compared with tissue scrapings.

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Capitani, M. I., V. Spotorno, S. M. Nolasco, and M. C. Tomás. "Physicochemical and functional characterization of by-products from chia (Salvia hispanica L.) seeds of Argentina." LWT - Food Science and Technology 45, no. 1 (January 2012): 94–102. http://dx.doi.org/10.1016/j.lwt.2011.07.012.

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24

Beranek, Mauricio D., Agustín I. Quaglia, Giovana C. Peralta, Fernando S. Flores, Marina Stein, Luis A. Diaz, Walter R. Almirón, and Marta S. Contigiani. "Culex interfor and Culex saltanensis (Diptera: Culicidae) are susceptible and competent to transmit St. Louis encephalitis virus (Flavivirus: Flaviviridae) in central Argentina." Transactions of The Royal Society of Tropical Medicine and Hygiene 114, no. 10 (July 28, 2020): 725–29. http://dx.doi.org/10.1093/trstmh/traa058.

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Abstract Background St. Louis encephalitis virus (SLEV) is endemic and autochthonous on the American continent. Culex pipiens quinquefasciatus is a vector of SLEV; however, Culex interfor and Culex saltanensis have also been found to be naturally infected with SLEV. The aim of this study was to determine the vector competence of C. interfor and C. saltanensis for SLEV from Argentina compared with C. p. quinquefasciatus. Methods Female of the Culex species were orally infected by feeding on viraemic chicks that had been inoculated with SLEV. Abdomens, legs and saliva blood-fed mosquitoes were analysed by viral plaque assay. Results Mosquitoes were susceptible to orally acquired infection, dissemination and transmission of SLEV in the saliva. Conclusions Our results demonstrate that C. saltanensis and C. interfor are susceptible to SLEV and competent for its transmission.

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Rodríguez, Claudia, Miguel Mancini, Carlos Prósperi, Alicia Weyers, and Gabriel Alcantú. "Hidrobiología del Sistema Lagunar La Salada - La Brava (Córdoba, Argentina)." Natura Neotropicalis 1, no. 31 (April 21, 2005): 1–9. http://dx.doi.org/10.14409/natura.v1i31.3751.

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Vessuri, Hebe. "“La universidad no se salva sola, tampoco la ciencia”: entrevista con Hebe Vessuri." Em Construção, no. 2 (December 22, 2017): 308–14. http://dx.doi.org/10.12957/emconstrucao.2017.32232.

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Hebe Vessuri nació en 1942 en Buenos Aires y realizó desde muy joven su formación en antropología en la Universidad de Oxford en Inglaterra. Continuó sus estudios en Canadá, y luego decidió volver a Argentina para realizar importantes y novedosos trabajos de investigación. Instalada la dictadura en Argentina, se exilió en Venezuela, donde se incorporó a laFacultad de Ciencias Sociales de la Universidad Central de Venezuela; allí fue una vital protagonista de la creación del Centrode Estudios del Desarrollo, un espacio académico que fue fundamental para entender la discusión sobre ciencia, desarrollo y universidades hacia la década de los setenta. Desde ese entonces ha estado vinculada a numerosas instituciones educativasy políticas: en la Universidad Estatal de Campinas, en Brasil, como directora del Programa de Ciencias Políticas. Unos años más tarde fue jefa del Centro de Estudios de la Ciencia del Instituto Venezolano de Investigaciones Científicas, desde 1992 hasta 2010. Allí fue la responsable de fundar el programa de posgrado en Estudios Sociales de la Ciencia. Actualmente esinvestigadora emérita del Sistema Nacional de Investigadores de México, así como investigadora principal del CONICET enel Instituto Patagónico de Ciencias Sociales y Humanas CENPAT-CONICET. Este 2017 fue galardonada con el John DesmondBernal Prize de la Sociedad de Estudios Sociales de la Ciencia.

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Ayerza h, Ricardo. "Oil content and fatty acid composition of chia (Salvia hispanica L.) from five northwestern locations in Argentina." Journal of the American Oil Chemists' Society 72, no. 9 (September 1995): 1079–81. http://dx.doi.org/10.1007/bf02660727.

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Drago, Fabiana B. "Community structure of metazoan parasites of silverside, Odontesthes bonariensis (Pisces, Atherinopsidae) from Argentina." Iheringia. Série Zoologia 102, no. 1 (March 2012): 26–32. http://dx.doi.org/10.1590/s0073-47212012000100004.

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The helminth communities of silverside, Odontesthes bonariensis (Valenciennes, 1835), from two Argentinean lagoons were studied and compared at component community and infracommunity levels. Nine helminth species were found: five digeneans (Austrodiplostomum cf. mordax, Ascocotyle (Phagicola) cf. diminuta, Ascocotyle sp., Thometrema bonariensis and Saccocoelioides sp.); two nematodes (Contracaecum sp. and Hysterothylacium sp.); one acanthocephalan (Wolffhugelia matercula) and one cestode (Cangatiella macdonaghi). Odontesthes bonariensis is a new host record for five parasite species. Richness, diversity and number of helminths in silversides from Salada Grande lagoon were higher than in those from Lacombe lagoon. This could be related with lagoon size, abundance of mollusks and fish-eating birds, and size and diet of silversides captured in each lagoon. In Salada Grande lagoon the helminth community of silversides was dominated by the allogenic and generalist species A. cf. mordax; while the autogenic and intermediate specialist species C. macdonaghi was dominant in Lacombe lagoon. Host sex did not affect richness, diversity or total abundance, whereas host size was positively correlated with these attributes, except diversity in Salada Grande lagoon.

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Bugallo, Verónica. "Aplicación de rayos X para la obtención de mutantes ornamentales en Salvia coccinea." ACI Avances en Ciencias e Ingenierías 12, no. 3 (May 5, 2021): 10. http://dx.doi.org/10.18272/aci.v12i3.1921.

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El género Salvia posee gran valor ornamental, numerosas variedades en el mercado mundial y cuenta con alrededor de 900 especies, 19 de las cuales son nativas de Argentina. Salvia coccinea es una de la especies argentinas con mayor potencial ya que posee gran rusticidad, vigor y flores muy vistosas de un color rojo intenso. Sin embargo, al abordar el mejoramiento en esta especie, los problemas que se presentan son la dificultad para la hibridación interespecífica y la escasa variación fenotípica que expresa la especie. Para aumentar la variabilidad genética en programas de mejoramiento de plantas ornamentales, la aplicación de técnicas de inducción de mutaciones es ideal ya que puede modificar características de las flores, del follaje, del hábito de crecimiento y de variables fisiológicas. Con el objetivo de obtener variabilidad genética para la obtención de plantas ornamentales de S. coccinea, se aplicaron rayos X a semillas de un genotipo selecto con dosis de 100 a 600 Gy. Para evaluar el efecto producido, se estimó el área de los cotiledones por medio del análisis de fotografías, se calculó la dosis letal 50 (DL50) en la supervivencia de las plantas y se evaluaron los fenotipos obtenidos. La expansión de los cotiledones fue afectada en todos los tratamientos con aplicación de rayos X, mostrando un área menor que en el tratamiento control. La DL50 fue estimada por medio de la fórmula obtenida por regresión lineal, resultando en un valor de irradiación de 312 Gy. Entre los fenotipos mutantes se observaron deformaciones foliares, alteraciones en la pigmentación de las hojas (variegación, albinismo) y torsión en tallos. La selección de nuevas variedades se orientará a la obtención de plantas compactas, variegación de las hojas, novedades en forma y color de flores y esterilidad.

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Cores, Angélica Amelia. "La educación popular en salud salva: proyecto freireano en tiempos del neoliberalismo." Cadernos CEDES 29, no. 79 (December 2009): 419–27. http://dx.doi.org/10.1590/s0101-32622009000300010.

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Desde la antigüedad el "pequeño resto" que persiste con fe en la vida, es protección frente al caos. El desarrollo local es la respuesta. Paulo Freire dice: "Mi experiencia junto con otras experiencias son la base de la esperanza". La educación popular en salud orienta para hacer un proyecto productivo con identidad. Este ejemplo es el de Balsa Las Perlas, un conglomerado a orillas del Rio Limay de la provincia de Rio Negro, Argentina. Personas que se radican y transforman un territorio de clima desfavorable en una comunidad demandante de sus derechos. Sólo con los intereses de la misma población, logran un centro de salud nivel II, un médico permanente, capacitación de una enfermera y una agente sanitaria, comunicación radial en red hospitalaria y las puertas abiertas a la participación de la gente, que rindió posteriormente sus frutos, haciendo de este paraje un lugar imposible de olvidar a la hora de asignar recursos estatales.

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Vera Canelo, Paula. "El guerrero y el técnico. Albano Harguindeguy y su relato sobre la represión y los desaparecidos (Argentina, 1976-2012)." Sociohistórica, no. 43 (March 15, 2019): e077. http://dx.doi.org/10.24215/18521606e077.

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El artículo analiza la palabra pública de Albano Harguindeguy sobre la represión de la última dictadura civico-militar argentina y sobre los desaparecidos, entre 1976 y 2012. Para ello, recurre a los ejes conceptuales que Feld y Salvi (2016) proponen para abordar las declaraciones de los represores. En primer lugar, el trabajo identifica las características del relato público de Harguindeguy: qué dijo y qué no pudo dejar de decir sobre la represión y los desaparecidos. En segundo lugar, analiza el vínculo que construyó hacia ese relato, en términos de su propia responsabilidad y la de las Fuerzas Armadas: arrepentimiento, justificación, reivindicación, etc. Por último, explica cuáles fueron las principales condiciones de posibilidad de este relato: las posiciones desiguales que ocupó Harguindeguy entre 1976 y 2012, el tránsito de la dictadura a la democracia, y los vaivenes entre impunidad y justicia propios de la escena argentina de los últimos treinta y cinco años.

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Mendoza, M., B. Mazza, G. S. Cabana, L. Smith, F. Di Fabio Rocca, H. Delfino, and C. Martínez. "KNOWLEDGE ABOUT GENETICS AND TRUST IN GENETIC TESTING IN A MID-SIZE CITY IN ARGENTINA." Journal of Basic and Applied Genetics 33, no. 2 (December 2022): 27–36. http://dx.doi.org/10.35407/bag.2022.33.02.03.

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Public attitudes about genetics appear to depend on the local context. We analyzed survey responses obtained in 2015 from 293 residents of Luján, a city in the province of Buenos Aires, Argentina, who self-assessed their knowledge about genetics and their trust in genetic tests. The survey integrated a larger research project for which consenting adult participants shared demographic and genealogical information and provided saliva samples for genetic ancestry analyses. Participants reported little knowledge but high trust in genetic testing when questioned about knowledge and trust. Well-known media stories of DNA-based forensic genetic investigations to identify the victims of state repression during the military dictatorship may have contributed to the high self-assessment of their genetic knowledge expressed by some participants, regardless of educational attainment. Our analysis provides information that could be used as a baseline to begin unraveling the current level of public trust in genetics in a region of the Global South where genetic testing has become widespread, but people’s knowledge of and trust in genetics remain poorly studied. Key words: genetic tests, knowledge, public attitudes, trust

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Gaetán, S. A., and M. Madia. "Occurrence of Fusarium Wilt Caused by Fusarium oxysporum on Common Sage in Argentina." Plant Disease 90, no. 6 (June 2006): 833. http://dx.doi.org/10.1094/pd-90-0833a.

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Common sage (Salvia officinalis L.) is being increasingly grown commercially in Argentina for its medicinal properties and as ornamental plants. Although the crop can be produced in greenhouses, most of the crop production is in open fields in Buenos Aires, Córdoba, and Santa Fe provinces. During the last 3 years, common sage has repeatedly shown decline symptoms in several production fields in the southern region of Buenos Aires Province. In the spring of 2004, a serious common sage wilt disease developed under field conditions resulting in as much as 15% loss of plants. The disease, affecting 10-month-old common sage plants, was observed in this region in two commercial fields located at Sierra de la Ventana. Affected plants appeared in irregular patches throughout the rows. Diseased plants exhibited symptoms of chlorosis, wilting, and death. Lower leaves on wilted plants showed gradual yellowing, apical necrosis, and premature defoliation. At advanced stages of the disease, irregular, brown, necrotic areas on the leaves occurred. The necroses on affected leaf parts occasionally expanded and coalesced to form large necrotic lesions that turned the entire leaf brown. Other symptoms included stunting, black streaking on stems, and rotting of roots. Longitudinal sections through stems and roots showed severely necrotic vascular tissue. Pieces taken from stems and roots of diseased plants were plated on potato dextrose agar after surface sterilization with 1% NaOCl for 3 min. The plates were incubated in the dark for 2 days and then kept under 12-h alternations of NUV light/dark for 8 days. On the basis of morphological and cultural characteristics, two fungal colonies were identified as Fusarium oxysporum Schlechtend.:Fr. (1) and used in the following studies. Pathogenicity tests were carried out on 4-month-old healthy common sage plants. Koch's postulates were completed for two isolates by dipping the roots of seedlings in a conidial suspension (2 × 105 conidia/ml) of a single-spore isolate for 25 min. Plants were repotted in a sterilized soil mix (soil/sand, 2:1). The experiment was conducted in a greenhouse at 23 to 25°C and 75% relative humidity with no supplemental light. Within 14 days, all inoculated plants showed typical Fusarium wilt symptoms similar to that observed in the field. Plants exhibited yellowing followed by wilting of foliage, rotting of roots, brown vascular discoloration, and then eventually collapsed. Four weeks postinoculation, 90% of the plants were dead. No symptoms were observed on control plants dipped only in distilled water. The fungus was successfully reisolated from the symptomatic plants, fulfilling Koch's postulates in all instances. F. oxysporum had been previously reported in 1995 to cause a wilt disease in clary sage (Salvia sclarea L.) fields in North Carolina; the disease was detected at seedling stage, reducing plant stand as much as 40 to 50% (2). In Argentina, the pathogen that caused wilt symptoms on common sage had also been observed in 2002 in greenhouses on the outskirts of Buenos Aires, although the disease incidence was low. At this time, the disease could become a limiting factor in common sage production and further information regarding this pathogen within the region is needed. To our knowledge, this is the first report of the occurrence of Fusarium wilt caused by F. oxysporum on commercial S. officinalis in open fields in Argentina. References: (1) P. E. Nelson et al. Fusarium species. An Illustrated Manual for Identification. Pennsylvania State University Press. University Park, PA, 1983. (2) V. P. Subbiah et al. Plant Dis. 80:1080, 1996.

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Busilacchi, Héctor Abel, Carolina Noelia Coronel, Mirian Susana Bueno, Mirian del Pilar Gonzalez, Diego Raúl Müller, Mirta Quiroga, and Cecilia Rosa Severin. "Incidencia de las condiciones de clima en el desarrollo y producción de semillas de Salvia hispanica L." Acta Agronómica 68, no. 3 (July 1, 2019): 244–50. http://dx.doi.org/10.15446/acag.v68n3.68759.

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El objetivo de este trabajo fue analizar la incidencia de las condiciones climáticas sobre el cultivo de Salvia hispanica L., conocida comercialmente como Chía, durante las campañas 2014 y 2015, para la zona núcleo de la pampa húmeda, centro-sur de Santa Fe (Argentina). La siembra se hizo en una parcela de 2 ha en el Campo experimental de la Facultad de Ciencias Agrarias (FCA) de la Universidad Nacional de Rosario (UNR), en la localidad de Zavalla (Santa Fe). Se emplearon semillas provenientes de lotes comerciales cultivados en la provincia de Salta y las evaluaciones durante ambas compañas fueron: altura de plantas, número de espigas por planta, peso de 1000 semillas y poder germinativo de las semillas cosechadas. Se observó que las heladas ocurridas no afectaron el desarrollo del cultivo. Como consecuencia de las abundantes precipitaciones y de las menores temperaturas registradas en la campaña 2014 con respecto a las de 2015, en la primera ocurrió una fuerte incidencia del hongo Sclerotinia sclerotiorum, que provocó que el número de espigas por planta (16) y el peso de 1000 semillas (0.904 g) fueran inferiores a las obtenidas en 2015 (78 espigas/planta y 1297 g el peso de 1000 semillas), junto a la aparición de semillas vanas y a un descenso del poder germinativo. Las condiciones de clima presentes durante el ciclo de cultivo de S. hispanica en la pampa húmeda tienen una incidencia directa en el desarrollo de la planta y en la producción y calidad de los frutos cosechados.

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de Paula, Alexandre Silva, and Carlos Barreto. "Potential Distribution of Nysius simulans (Hemiptera: Lygaeidae) in Soybean Crops in South America Under Current and Future Climate." Journal of Economic Entomology 113, no. 4 (May 14, 2020): 1702–10. http://dx.doi.org/10.1093/jee/toaa089.

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Abstract Nysius simulans (Stål) is a suctorial, fluid feeding herbivore that can transmit toxins and spread pathogens via saliva and is an economically important pest for soybean in South America. Currently, N. simulans in soybean is predominantly found in Argentina, but future changes in the distribution from both dispersal and range shifts due to climate change may affect soybean cultivation in southern South America. We developed a species distribution model to examine the distribution range of N. simulans. We compared the potential distribution of N. simulans under current and future projected climatic conditions in order to identify future areas of natural occurrence with ecological niche models using Maxent. Current records of N. simulans show that while the species is present in Argentina, and some areas of Brazil, Paraguay, Peru, and Uruguay, our models suggest that many new suitable areas will be available for N. simulans under climate change including other regions of Argentina, and southern Chile. Our results also predict potential future range shifts and distributions into Bolivia, but not Peru nor Brazil. In our model, seasonal trends in temperature were shown to have the greatest contribution to the potential distribution, whereas isothermality (i.e., temperature variability) was correlated to potential future distribution ranges. We conclude that current populations of N. simulans may be expanding its distribution range by diffusion (i.e., range expansion over generations at the margins of populations), and regions with potential future N. simulans distribution should be closely monitored.

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Campuzano, Betina Sandra. "Escrituras diaspóricas y migrantes trasandinos en la crónica urbana argentina." Literatura y Lingüística, no. 40 (November 18, 2019): 159–83. http://dx.doi.org/10.29344/0717621x.40.2065.

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Nos interesa indagar diferentes formas y grados de migración en crónicas urbanas del sistema literario argentino, centrándonos en su genericidad y la construcción del referente. Por un lado, observamos las migraciones genéricas en escrituras urgentes que exceden el concepto canónico de literatura, instalando nuevos modos de leer. Por otro, nos enfocamos en la migración. Para ello, a partir del análisis del discurso y desde una mirada transdisciplinaria, abordamos las crónicas Si me querés, queréme transa, de Cristián Alarcón (2010) y Sangre salada, de Sebastián Hacher (2011). El resultado de este trabajo avanza en la reflexión acerca de los procesos migratorios que propone la crítica literaria latinoamericana, como las discusiones en torno al retorno del realismo. Las conclusiones permiten proponer la noción de escrituras diaspóricas para referirnos a esta variedad y gradación de migraciones de diferente índole en los textos que nos convocan.

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Gandolfo, Mirta, Arbelo Dario, Mirta Spadiliero-de-Lutri, and Ana María Zarate. "Relationship between extrinsic black stain and dental caries in a population of Argentina." Revista de la Facultad de Odontología 32, no. 2 (August 1, 2022): 16–26. http://dx.doi.org/10.25014/revfacodont271.2020.32.2.16.

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Many published studies express that the presence of extrinsic black stain on the enamel of tooth surfaces in children and adolescents is associated with less dental caries (CD) activity, this being valid for both primary and permanent dentition.The objective or this researh was to carry out a multifactorial approach to know the relationship between the presence of extrinsic black stain and the presence of caries, in a population of the city of Córdoba, Argentina.Methods. A case-control study (5: 1) was carried out in patients of both sexes from 3 to15 years of age, between the years 2016-2019, who were attended by spontaneous request to the Chair "A" of Pediatric Dentistry, of the Faculty of Dentistry, from the National University of Córdoba (n = 184). All patients underwent a Clinical History. Stimulated saliva was extracted for calcium and phosphate determination and dental biofilm was taken to measure CFU / mL of Streptococcus mutansand Lactobacillus spp.Results. The prevalence of extrinsic black spot was 1.78%. No significant association was found between sex, age and types of dentition between the groups studied. In the problem group, a lower amount of CFU / mL of S. mutans and Lactobacilluss pp was found, a higher concentration of calcium and phosphate and a lower caries index of the primary dentition. Patients with extrinsic black spot had a much lower rate.Conclusions. The extrinsic black spot could be an element of protection against caries, the recommendation for patients who present them would be to remove them from the visible areas and keep them in the rest of the dental elements

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Marozzi, Antonela, Mariana Mondini, and Elizabeth Pintar. "TAFONOMÍA DE VERTEBRADOS HOLOCÉNICOS DEL SITIO ARQUEOLÓGICO CUEVA SALAMANCA 1 EN LA PUNA SALADA ARGENTINA." Comechingonia. Revista de Arqueología 19, no. 1 (June 30, 2015): 11–36. http://dx.doi.org/10.37603/2250.7728.v19.n1.27369.

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Se presentan los resultados del análisis tafonómico de restos de vertebrados procedentes del sitio arqueológico Cueva Salamanca 1 (CS1), situado en Antofagasta de la Sierra, Catamarca, a 3665 msnm, dentro de la Puna Salada argentina. Este sitio contiene ocupaciones de cazadoresrecolectores con dataciones del Holoceno Medio. Se trabajó con una muestra de especímenes identificables (n=277) y una de especímenes no identificables (n=514) de los diferentes estratos del sitio. La conservación de los materiales analizados es buena y no se observaron sesgos tafonómicos significativos. En general predominaron los procesos naturales intra-sitio, como la acción de humedad, por sobre procesos atmosféricos como la meteorización, aunque en ningún caso implicaron daños sustanciales. La alta frecuencia de trazas antrópicas en relación con la baja incidencia de las de carnívoros sugiere que los humanos fueron el principal agente de acumulación. La información obtenida se comparó con la de otros sitios arqueológicos, y con los datos paleoecológicos y paleoambientales disponibles para la región.

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Radisek, S., N. Ferant, J. Jakse, and B. Javornik. "First Report of Powdery Mildew Caused by Golovinomyces biocellatus on Common Sage (Salvia officinalis) in Slovenia." Plant Disease 96, no. 7 (July 2012): 1065. http://dx.doi.org/10.1094/pdis-01-12-0010-pdn.

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Common sage (Salvia officinalis) is a well known perennial and medicinal herb in the Lamiaceae family, which is widely planted in gardens and parks in Slovenia. In September 2007, symptoms of powdery mildew infection were observed on common sage plants grown in several gardens in the Savinja valley. White mycelium was present, principally on the upper leaf surface, but was also observed on stems. The disease progressed as spots coalesced and leaves become distorted and necrotic. Microscopic observations revealed septate and branched hyaline hyphae 4 to 7 μm wide. Conidiophores were cylindrical and septate and measured 40 to 90 × 9 to 12 μm. The foot cells of the conidiophores were straight, followed by one to three shorter cells. Conidia produced in chains (three to four conidia per chain) were hyaline and doliform in shape, measuring 27 to 35 × 14 to 20 μm and lacking fibrosin bodies. Cleistothecia were not observed in the collected samples. All of these characteristics were consistent with Golovinomyces biocellatus as described by Braun (2). For molecular identification of the pathogen, DNA was extracted from mycelia and conidia of infected plants, collected in two different gardens in the Savinja valley as representative samples (1GB-Sof and 2GB-Sof). Nuclear rDNA internal transcribed spacer (ITS) regions were amplified by PCR using the universal primers ITS4 and ITS5, and sequenced. Both samples yielded the same 532 bp sequence, which showed the highest identity (97 to 99%; E value = 0.0) to G. biocellatus ITS sequences in the NCBI GenBank (1). The nucleotide sequence has been assigned GenBank Accession No. JQ340358. Pathogenicity was confirmed by inoculation of 10 healthy plants of S. officinalis ‘Grower's Friend’ planted in pots. Plants were sprayed with a spore suspension (105 conidia/ml; 0.01% Tween 20) obtained from naturally infected leaves. Inoculated plants were covered with polyethylene bags for two days to maintain high humidity and incubated in a growing chamber at 22°C with a 12-h photoperiod. The first powdery mildew signs and symptoms developed on leaves 7 days after inoculation. Ten control plants sprayed with distilled water showed no symptoms. The fungus present on the inoculated plants was morphologically identical to that originally observed on diseased plants. Powdery mildew infections of common sage associated with G. biocellatus have been known in Argentina, Washington State (United States), and various countries in Europe (2,3,4). To the best of our knowledge, this is the first report of G. biocellatus on common sage in Slovenia. Voucher specimens are available at the culture collection of the Slovenian Institute of Hop Research and Brewing. References: (1) S. F. Altschul et al. Nucleic Acids Res. 25:3389, 1997. (2) U. Braun. Beih. Nova Hedwigia 89:1, 1987. (3) M. G. Cabrera et al. Mycosphere 1:289, 2010. (4) F. M. Dugan. North American Fungi 6:1, 2011.

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Alfonso, María Belén, Alejandro José Vitale, María Clara Menéndez, Vanesa Liliana Perillo, María Cintia Piccolo, and Gerardo Miguel Eduardo Perillo. "Estimation of ecosystem metabolism from diel oxygen technique in a saline shallow lake: La Salada (Argentina)." Hydrobiologia 752, no. 1 (October 31, 2014): 223–37. http://dx.doi.org/10.1007/s10750-014-2092-1.

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Verónica, Abrego Ada. "Inmigrantes “chinxs” en la Buenos Aires globalizada." Cadernos PROLAM/USP 17, no. 32 (August 28, 2018): 66–91. http://dx.doi.org/10.11606/issn.1676-6288.prolam.2018.144359.

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En las últimas décadas y debido a la globalización, aun siendo su afincamiento restrictivo, la movilidad de personas coloca incluso a sociedades como la argentina, que se autodefine como de inmigrantes, frente a interesantes encrucijadas discursivas: ¿Qué elementos mueve la vulnerabilidad de los actuales inmigrantes en la autopercepción de las autobiografías migratorias de lxs argentinxs? El artículo 25 de la Constitución argentina fomenta explícitamente “la inmigración europea”, pero, ¿qué sucede con la “nueva migración”, por ejemplo con la de personas originarias de China, que se establecieron en los años 1980 y ya cuentan con una “segunda generación” o con otras llegadas aún más recientemente provenientes del continente asiático y que apenas llevan pocos años en el país? ¿Qué imágenes de anfitrión/-a registra quien es acogidx y proviene de un núcleo cultural distinto? A partir de una conceptualización de interseccionalidad que no se restringe a los tradicionales ejes de “género, ‘raza’/etnicidad y clase”, se analizarán la manera de articularse de las voces y contravoces inmigrantes en estas manifestaciones fílmicas. Pues la pregunta es también, qué espacio les brinda el cine y a qué medios recurre el lenguaje fílmico para proyectar a estos nuevos actores sociales en la gran pantalla. Tres películas argentinas que tematizan la migración asiática, Un cuento chino (2011) de Sebastián Borensztein, La Salada (2015) de Juan Martín Hsu y Mi último fracaso (2017) de Cecilia Kang, ponen en la mira la relación entre lxs argentinxs y lxs inmigrantes asiáticxs – en La Salada, también de lxs bolivianxs – e invitan a debatir sobre los imaginarios de la migración y los presupuestos de la hospitalidad cotejándolos con sus obstáculos y, en particular, con los arraigados aguafuertes del “Otro” y las prácticas discriminatorias que se articulan en la intersección del origen, la nación y la cultura.

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Delpietro, Horacio A., Roberto G. Russo, Charles E. Rupprecht, and Gabriela L. Delpietro. "Towards Development of an Anti-Vampire Bat Vaccine for Rabies Management: Inoculation of Vampire Bat Saliva Induces Immune-Mediated Resistance." Viruses 13, no. 3 (March 20, 2021): 515. http://dx.doi.org/10.3390/v13030515.

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The common vampire bat (Desmodus rotundus) is a hematophagous species responsible for paralytic rabies and bite damage that affects livestock, humans and wildlife from Mexico to Argentina. Current measures to control vampires, based upon coumarin-derived poisons, are not used extensively due in part to the high cost of application, risks for bats that share roosts with vampires and residual environmental contamination. Observations that vampire bat bites may induce resistance in livestock against vampire bat salivary anticoagulants encourage research into novel vaccine-based alternatives particularly focused upon increasing livestock resistance to vampire salivary components. We evaluated the action of vampire bat saliva-Freund’s incomplete adjuvant administered to sheep with anticoagulant responses induced by repeated vampire bites in a control group and examined characteristics of vampire bat salivary secretion. We observed that injections induced a response against vampire bat salivary anticoagulants stronger than by repeated vampire bat bites. Based upon these preliminary findings, we hypothesize the utility of developing a control technique based on induction of an immunologically mediated resistance against vampire bat anticoagulants and rabies virus via dual delivery of appropriate host and pathogen antigens. Fundamental characteristics of host biology favor alternative strategies than simple culling by poisons for practical, economical, and ecologically relevant management of vampire populations within a One Health context.

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43

Zilio, Mariana I., M. Belén Alfonso, Federico Ferrelli, Gerardo M. E. Perillo, and M. Cintia Piccolo. "Ecosystem services provision, tourism and climate variability in shallow lakes: The case of La Salada, Buenos Aires, Argentina." Tourism Management 62 (October 2017): 208–17. http://dx.doi.org/10.1016/j.tourman.2017.04.008.

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44

DEL-RIO, GLAUCIA, LUÍS FÁBIO SILVEIRA, VAGNER CAVARZERE, and MARCO ANTONIO RÊGO. "A taxonomic review of the Golden-green Woodpecker, Piculus chrysochloros (Aves: Picidae) reveals the existence of six valid taxa." Zootaxa 3626, no. 4 (March 15, 2013): 531–42. http://dx.doi.org/10.11646/zootaxa.3626.4.7.

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Piculus chrysochloros (Vieillot 1818) is a species of woodpecker that ranges from Argentina to Panama, occurring in lowland forests as well as Cerrado, Caatinga and Chaco vegetation. Currently, nine subspecies are accepted, but no study has evaluated individual variation within populations, so the status of these taxa remains uncertain. Here we review the taxonomy and distribution of this species, based on morphological and morphometric data from 267 specimens deposited in ornithological collections. Our results suggest the existence of six unambiguous taxonomic units that can be treated as phylogenetic species: Piculus xanthochloros (Sclater & Salvin 1875), from northwestern South America; Piculus capistratus (Malherbe 1862), from northern Amazonia west to the Branco River; Piculus laemostictus Todd 1937, from southern Amazonia; Piculus chrysochloros (Vieillot 1818), from the Cerrado, Caatinga and Chaco; Piculus paraensis (Snethlage 1907) from the Belém Center of Endemism; and Piculus polyzonus (Valenciennes 1826) from the Atlantic Forest. Both Brazilian endemics (P. polyzonus and P. paraensis) are threatened due to habitat loss. In addition, we found one undescribed form from the Tapajós-Tocantins interfluve, now under study, that may prove to be a valid species once more specimens and other data become available.

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Pintar, Elizabeth. "CONTINUIDADES E HIATOS OCUPACIONALES DURANTE EL HOLOCENO MEDIO EN EL BORDE ORIENTAL DE LA PUNA SALADA, ANTOFAGASTA DE LA SIERRA, ARGENTINA." Chungará (Arica) 46, no. 1 (2014): 51–72. http://dx.doi.org/10.4067/s0717-73562014000100004.

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46

di Marco, O. N., M. S. Aello, and D. G. Méndez. "Energy expenditure of cattle grazing on pastures of low and high availability." Animal Science 63, no. 1 (August 1996): 45–50. http://dx.doi.org/10.1017/s1357729800028277.

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AbstractThe energy expenditure of freely grazing cattle was investigated in the National Institute of Agricultural Technology and Agricultural Science College of Balcarce, Argentina (37° 45'S, 58° 18'W), by the CO2 entry rate technique. Two experiments were carried out in the autumn in March 1994 (experiment 1) and in April 1995 (experiment 2) with animals prepared with catheters in the parotid gland (collection of saliva) and into the peritonea for infusion of a solution of 14C. Six Angus steers (259 (s.e. 11) kg) were used in experiment 1 and seven (298 (s.e. 36) kg) in experiment 2. In experiment 1 animals grazed ryegrass pastures for 5·5 h in two periods of 1·5 h in the morning and of 4 h in the afternoon and in experiment 2 animals grazed oat pasture in one period of 1 h in the morning. Twenty hours before and during the experiments a solution ofNaH14CO3 was infused at a rate of 9·4 (experiment 1) and 8·1 (experiment 2) μiCi/h for 48 h with portable peristaltic pumps carried by each animal. Saliva samples were collected at least after the first 20 h of infusion. The first sample was collected in the corral just before grazing and two samples were collected in each grazing period. Also, in experiment 1 three samples were taken during resting (noon, 1 h after grazing and the next morning). In addition, bite frequency, pasture availability, plant height, in vitro digestibility and crude protein were measured. Carbon dioxide production was calculated as the ratio between the rate of infusion of 14C (μCi/h) and the specific activity of CO2 (μCi/l CO2) in saliva samples. Bite frequency was 59 and 28 bites per min on the respective pasture of ryegrass (148 g dry matter (DM) per m2 and 10·5 cm height) and oat (228 g DM per m2 and 27 cm height). Energy expenditure (EE, kJ/h per kg M0·75) in corrals was 14·9 (experiment 1) and 14·3 (experiment 2), increasing to 22·6 (proportionately 0·52) when grazing at 59 bites per min and to 16·6 (0·16) when grazing was at 28 bites per min. One hour after grazing at 59 bites per min (experiment 1) the EE was as high as during grazing, and in the next morning (after 5·5 h) of grazing remained at 19·7 kJ/h per kg M0·75 (0·32). No differences in energy expenditure were found between periods of grazing in experiment 1. It was concluded that the increase in energy expenditure of cattle due to the activity of grazing depends on the rate of biting. Grazing for 10 h at a moderate rate may boost EE proportionately by only 0·06, however grazing at the highest rates could easily add proportionately 0·20.

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Oliva, Ana L., Noelia S. La Colla, Andrés H. Arias, Sandra E. Botté, Gerardo M. E. Perillo, and M. Cintia Piccolo. "First records of polycyclic aromatic hydrocarbons and metals in sediments from a shallow lake in the Pampean–Patagonian region (Argentina)." Marine and Freshwater Research 70, no. 10 (2019): 1378. http://dx.doi.org/10.1071/mf18310.

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This study evaluated, for the first time, organic and metal contaminants in sediments from Argentinean saline lakes, specifically La Salada shallow lake, a small polymictic lake on the south border of the Pampean region. The concentration of 16 priority polycyclic aromatic hydrocarbons (PAHs) and 8 metals (Cd, Cu, Cr, Fe, Mn, Ni, Pb and Zn) was assessed and the ecotoxicological effects of these pollutants were examined. The total concentration of the 16 PAHs ranged from 12.55 to 10679.48ngg–1 dry weight, with a predominance of four-ringed PAHs. Molecular ratio analysis showed pyrolytic sources as the main source of PAHs. Among the metals, Mn, Fe and Zn had the highest concentrations in sediments. General metal levels revealed a multiplicity of point sources and rock weathering as their main source. Regarding the potential ecotoxicological effects, adverse effects may be expected from PAHs because several compounds exceeded the sediment quality guidelines threshold effect level and likely effect level. Conversely, metal levels were below levels specified in safety guidelines. These results are interpreted in an international context, providing information that addresses a gap in the pollution record of Argentinean lakes, and should have strong implications for future planning management.

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Marshall, Larry G., Robert E. Drake, and Garniss H. Curtis. "40K-40Ar age calibration of Late Miocene-Pliocene mammal-bearing Huayquerias and Tunuyan formations, Mendoza Province, Argentina." Journal of Paleontology 60, no. 2 (March 1986): 448–57. http://dx.doi.org/10.1017/s002233600002196x.

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Mineral separates of five tuffs interbedded in the mammal-bearing Huayquerías and Tunuyán formations in Mendoza Province, west-central Argentina, were dated by the 40K-40Ar method. At the locality of Rio Seco Ultima Aguada on the east side the Meseta Guadal three biotite concentrates of a tuff from a level that apparently corresponds to the very top of the Huayquerias Formation (or less probably to the very bottom of the Tunuyan Formation, sensu Dessanti, 1946) yielded an average age of 5.8 ± 0.1 Ma. The boundary between the Huayquerias Formation (namesake and type formation and fauna of the Huayquerian Land Mammal Age) and the Tunuyan Formation (which contains a Montehermosan age fauna at this locality) is thus about 5.8 Ma. At the locality of Rio Seco de la Salada on the west side of the Meseta Guadal, glass concentrates from two tuffs in the upper part of the Tunuyan Formation yielded ages of 2.6 ± 0.1 and 2.4 ± 0.3 Ma, respectively (the latter date is from a tuff located 90 m stratigraphically above the former). These dates indicate that the rocks and faunas from the upper part of the Tunuyan Formation are of Chapadmalalan (i.e., 2.8 to 2.5 Ma) and Uquian (i.e., 2.5 to 1.5 Ma) age. The faunas from the lower and middle parts of the Tunuyan Formation on the east side of the Meseta Guadal are apparently all of Montehermosan age (i.e., ca. 6.0 to 2.8 Ma).

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Cornejo, Lila Susana, Mabel Brunotto, and Elena Hilas. "Factores salivales asociados a prevalencia e incremento de caries dental en escolares rurales." Revista de Saúde Pública 42, no. 1 (February 2008): 19–25. http://dx.doi.org/10.1590/s0034-89102008000100003.

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OBJETIVO: Evaluar la asociación de la saliva y la prevalencia de caries. MÉTODOS: Estudio longitudinal de dos años, en una población de niños escolares rural de Cruz del Eje, Córdoba-Argentina, entre los años 2000 y 2002. La población de estudio comprendió la totalidad de escolares asistentes (N=196) a ocho escuelas rurales de 5 a 14 años de edad, ambos sexos. Se estudiaron tres momentos (N=46): base, 12 y 24 meses. Se evaluaron los componentes salivales y los índices CPOD y ceod. Se crearon las variables nominales, "caries" y "caries nueva" para evaluar riesgo de caries en el estudio base y en los tiempos 12 y 24 meses, respectivamente. Se aplicó el análisis de componentes principales para seleccionar factores salivales relacionados con la presencia de caries que a posterior se categorizaron según valor de la mediana como punto de corte. RESULTADOS: Se observó alta prevalencia de caries (50%-90%) en los tres momentos de estudio. El incremento de caries fue significativamente mayor a los 12 meses (p=0.000), comparado con el observado a los 24 meses. En el estudio base se observó concentración baja y homogénea de los iones fosfato y calcio, y asociación significativa (p<0.050) entre calcio y fósforo y relación Ca/P con la presencia de caries. CONCLUSIONES: Las concentraciones de iones fosfato y de la relación molar calcio/fósforo podrían ser considerados como factores de riesgo para el desarrollo de caries en poblaciones con características particulares como la estudiada.

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Solimano, Patricio J., Javier R. Garcia de Souza, Tomás Maiztegui, Claudio R. M. Baigún, and Darío C. Colautti. "New approaches for growth improvement in pejerrey Odontesthes bonariensis (Valenciennes, 1835) culture (Atherinomorpha: Atherinopsidae)." Neotropical Ichthyology 13, no. 1 (March 24, 2015): 213–20. http://dx.doi.org/10.1590/1982-0224-20140078.

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The pejerrey is the most important recreational species in shallow temperate lakes and reservoirs of Argentina and the attempts to develop its culture have started a century ago. A common constraint of pejerrey aquaculture is its poor growth under traditional intensive rearing techniques. The aim of this study was to evaluate the possibility to achieve and maintain high growth rates of pejerrey throughout the rearing process by semi-intensive culture method . Four floating cages were installed in La Salada de Monasterio Lake and each one was stocked with 300 juveniles (10.22 ±0.38cm; 6.52 ±0.82g). From January through March all fish were exposed to natural zooplankton as food source, whereas from April to September two cages were supplied daily with artificial food. The fish exposed to artificial supplementary diets exhibited significantly higher growth (17.5 ±0.98cm; 41.05 ±8.55g) than those in the control cages (15.02 ±0cm ; 23.5 ±0.84g), and exceeded the known values in pejerrey culture. The results suggest that the species potential growth is not fully achieved by common intensive methods and it can be improved by semi-intensive techniques. Accordingly a better understanding of the species nutritional requirements is needed to improve growth rates and enhance pejerrey culture.

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