Espósito ME¹, ME Sequeira², JD Paoloni³, MC Blanco⁴, N Amiotti¹

Phyton-International Journal of Experimental Botany, Vol.82, pp. 35-44, 2013, DOI:10.32604/phyton.2013.82.035

Abstract We investigated the levels of F and its relationship with As, B and V in ground and surface waters of the southern Pampas, where cases of dental and skeletal fluorosis, and arsenic in hair and urine samples have been detected in the rural population. Eating vegetables and cereals grown in irrigated areas with excessive fluoride may increase the risk of fluorosis due to the addition of the extra F contributed from other sources such as drinking water. Moreover, if these elements exceed the tolerance of crops produce toxicity and, like salinity, they decrease the potential crop yield. Within an area… More >

Mirassón HR¹, IR Palomo², RE Brevedan², MN Fioretti²

Phyton-International Journal of Experimental Botany, Vol.80, pp. 147-151, 2011, DOI:10.32604/phyton.2011.80.147

Abstract Safflower production is mainly concentrated in northwestern Argentina although the most suitable area for its production is the central, Semiarid Pampean Region. The response of different varieties able to produce high sustainable yields was studied under different environments, with the idea of promoting these varieties in the study region. Six variety trials were carried out at two locations in the study area, Santa Rosa (La Pampa, 36° 39’ S, 64° 16’ W) and Tres Picos (Buenos Aires, 38° 16’ S, 62° 13’ W), during several years. Relative yield was used as a measure of safflower stability. Varieties S-541, S-200 and… More >

Kiehr M¹, R Delhey¹, J Lusto², PJ Paoloni³

Phyton-International Journal of Experimental Botany, Vol.79, pp. 199-202, 2010, DOI:10.32604/phyton.2010.79.199

Abstract A report is given on host plants, distribution, damage and importance of Sclerotinia minor in the southern Pampas and northern Patagonia regions (Argentina). Spontaneous infections were recorded on seven plant species. Sonchus oleraceus and Eruca vesicaria are new hosts for S. minor; Cichorium intybus and Zinnia elegans are new hosts for Argentina. This fungus causes important damage on Helianthus annuus and Lactuca sativa, and it occasionally affects C. intybus and Solanum lycopersicum. Comparative in vitro and in planta studies were carried out with S. minor and S. sclerotiorum isolates obtained from sunflower. More >

Delhey R¹, M Kiehr¹, MI Allievi¹, J Lusto², S Frayssinet¹, B Sidoti Hartmann³, I Kröger¹, PJ Paoloni⁴, D Zappacosta¹, A Servera³

Phyton-International Journal of Experimental Botany, Vol.78, pp. 111-115, 2009, DOI:10.32604/phyton.2009.78.111

Abstract A report is given on plant hosts, distribution, damage and importance of Sclerotinia sclerotiorum in the southern Pampas region and northern Patagonia (Argentina). Spontaneous infections were recorded on 25 plant species, including oil crops, vegetables, and ornamental and invasive plants. Carduus thoermeri, Xanthium cavanillesii, Marrubium vulgare and Ranunculus repens are new hosts of S. sclerotiorum. The records on Helianthus tuberosus, Diplotaxis tenuifolia and Cucurbita pepo are new to Argentina. Sclerotinia sclerotiorum causes important damage on Helianthus annuus, Glycine max, Apium graveolens, Foeniculum vulgare and Lactuca sativa. S. sclerotiorum is also reported on Daucus carota, Petroselinum crispum, Brassica oleracea, B. rapa… More >

Giaccio GCM¹, P Laterra², F Cabria³

Phyton-International Journal of Experimental Botany, Vol.86, pp. 112-123, 2017, DOI:10.32604/phyton.2017.86.112

Abstract The analysis of lateral flow runoff of superficial nutrients and sediments from an agricultural origin and their retention by infiltration of riparian vegetation strips are of great importance in reducing the agricultural externalities on surface water quality. The aim of this study was to relate soil infiltration to the main biophysical properties of riparian environments in the Pampa Austral of Argentina, defined by the composition of its plant community and the coverage of exotic species. We explored the relationships between hydraulic conductivity (K_s) and aboveground, litter and root biomasses, organic matter concentration, terrain slope, soil bulk density, texture and electrical… More >

Yuhua Gong¹, Shilei Hao^1,*, Bochu Wang^1,*

Molecular & Cellular Biomechanics, Vol.16, Suppl.2, pp. 143-143, 2019, DOI:10.32604/mcb.2019.07095

Abstract The mechanical response of brain tissue closely relates to cerebral blood flow and brain diseases. During intracerebral haemorrhage (ICH), a mass effect occurs during the initial bleeding. As the hematoma increases, the haematoma mass effect continues to squeeze the brain tissue mechanically, which can even lead to the formation of fatal cerebral hernia. However, fewer studies have focused on the brain damage mechanisms and treatment approaches associated with mass effects compared to the secondary brain injuries after ICH, which may be a result of the absence of acceptable animal models mimicking a mass effect. Thus, a thermo-sensitive poly (N-isopropylacrylamide) (PNIPAM)… More >

MANOOCHEHR MESSRIPOUR¹, AZADEH MESRIPOUR²

BIOCELL, Vol.37, No.2, pp. 17-21, 2013, DOI:10.32604/biocell.2013.37.017

Abstract Tyrosine hydroxylase and tryptophan hydroxylase are key rate limiting enzymes in the biosynthesis of dopamine and serotonin, respectively. Since both enzymes are active in striatum, and affected by age, this study was undertaken to investigate interaction between dopamine and serotonin synthesis in brain striatal synaptosomes of aging rat. Male Wistar rats (3 and 30 month old) were killed by decapitation and brain striatal synaptosomes were prepared by discontinuous Ficoll/sucrose gradient technique. Synaptosomes were incubated in the presence of added pargiline (monoamineoxidase inhibitor), dopamine or serotonin synthesized during 25 min was measured by HPLC, employing electrochemical detection. Dopamine synthesis in synaptosomes… More >

J.T. Zhou¹, Q.W. Ma^1,2

CMES-Computer Modeling in Engineering & Sciences, Vol.56, No.2, pp. 179-210, 2010, DOI:10.3970/cmes.2010.056.179

Abstract In this paper, the Meshless Local Petrov-Galerkin method based on Rankine source solution (MLPG_R) is further developed to model 3D breaking waves. For this purpose, the technique for identifying free surface particles called Mixed Particle Number Density and Auxiliary Function Method (MPAM) and the semi-analytical technique for estimating the domain integrals for 2D cases are extended to 3D cases. In addition, a new semi-analytical technique is developed to deal with the local spherical surface integrals. The numerical results obtained by the newly developed method will be compared with experimental data available in literature and satisfactory agreement will be shown. More >

Q.W. Ma^1,2, J.T. Zhou¹

CMES-Computer Modeling in Engineering & Sciences, Vol.43, No.3, pp. 277-304, 2009, DOI:10.3970/cmes.2009.043.277

Abstract Following our previous work, the Meshless Local Petrov-Galerin me -thod based on Rankine source solution (MLPG_R) will be extended in this paper to deal with breaking waves. For this purpose, the governing equation for pressure is improved and a new technique called Mixed Particle Number Density and Auxiliary Function Method (MPAM) is suggested for identifying the free surface particles. Due to complexity of the problem, two dimensional (2D) breaking waves are only concerned here. Various cases are investigated and some numerical results are compared with experimental data available in literature to show the newly developed method is robust. More >