1,076 research outputs found
Response of potential cucurbit rootstocks against Meloidogyne spp
the Cucurbita hybrids, usually used as cucurbit rootstocks, are
susceptible to Meloidogyne.
Its cultivation increases the nematode population densities
at similar levels than ungrafted cucumber or melon crops, and
higher 'Ievels than watermelon.Postprint (published version
Grafting melons onto potential cucumis spp. rootstocks
Cucumís
melo
is
an
economically
importar]t
crop.
Its
culture
is
hampered
by
differen
t
types
of
soil
stresses.
Grafting
melons
onto
different
resistant
cucurbits
belonging
to
the
genera,
Cucurbíta,
Lagenaría,
Luffa,
etc.
have
been
successfully
used
to
avoid
these
problems.
However,
me
Ion
quality
has
been
nega.tively
modified
as
a
consequence
of
grafting.
In
general,
variation
in
fruit
shape,
seed
cavity
and
sugar
content
have
been
observed.
The
use
of
rootstocks
more
genetically
c\oser
to
the
melon
scions
could
be
useful
to
obtain
fru
i
ts
with
better
quality
from
melon
grafted
plantsPostprint (published version
Efecto de dosis de acido polimaleico en la estabilidad estructural de suelos salinos.
Se estudió el efecto de distintas dosis de ácido polimaleico sobre la estabilidad estructural de tres tipos de suelos salinos. Se separaron los agregados naturales que pasaron por el tamiz de 4,00 mm y quedaron retenidos en el tamiz de 2,00 mm, se aplicaron dosis de ácido polimaleico de 0,5, 10 y 15 L/ha sobre los agregados. Cada 30 dias se determinó la distribución de agregados estables y el porcentage de arcilla dispersa en agua. Para los tres tipos de suelos las dosis más elevadas presentaron un mayor aumento del diámetro medio ponderado de los agregados y mayor reducción del porcentaje de arcilla dispersa en agua
The interplay between immune system and microbiota in inflammatory bowel disease: A narrative review
The importance of the gut microbiota in human health is currently well established. It contributes to many vital functions such as development of the host immune system, digestion and metabolism, barrier against pathogens or brain–gut communication. Microbial colonization occurs during infancy in parallel with maturation of the host immune system; therefore, an adequate cross‐talk between these processes is essential to generating tolerance to gut microbiota early in life, which is crucial to prevent allergic and immune‐mediated diseases. Inflammatory bowel disease (IBD) is characterized by an exacerbated immune reaction against intestinal microbiota. Changes in abundance in the gut of certain microorganisms such as bacteria, fungi, viruses, and archaea have been associated with IBD. Microbes that are commonly found in high abundance in healthy gut microbiomes, such as F. prausnitzii or R. hominis, are reduced in IBD patients. E. coli, which is usually present in a healthy gut in very low concentrations, is increased in the gut of IBD patients. Microbial taxa influence the immune system, hence affecting the inflammatory status of the host. This review examines the IBD microbiome profile and presents IBD as a model of dysbiosis.This study was supported by Instituto de Salud Carlos III (ISCIII), Spain (grant numbers
PI16/01296 and PI19/01034), by Sara Borrell contract CD19/00247 to L.A.-G. and by CIBEReh
Current evidence on the use of the adalimumab biosimilar SB5 (ImraldiTM): a multidisciplinary perspective
This review provides an overview of data from trials and real-world studies available for SB5 (ImraldiTM) across three main therapeutic areas: rheumatology, gastroenterology, and dermatology. Areas covered
A literature search for publications on data for SB5 efficacy/effectiveness, safety, and immunogenicity was undertaken. Expert opinion, Evidence derived from clinical studies suggest that the biosimilar SB5 is a safe and effective alternative to reference adalimumab. Considering that patients suffering from immune-mediated inflammatory diseases such as inflammatory arthritis, inflammatory bowel disease and psoriasis often require long-term biologic treatment, biosimilar medicines (such as SB5) can reduce healthcare costs while increasing access to effective treatment
Spray-dried plasma promotes growth, modulates the activity of antioxidant defenses, and enhances the immune status of gilthead sea bream (Sparus aurata) fingerlings
Terrestrial animal byproduct meals, including nonruminant blood meal and blood products, represent the largest and largely untapped safe source of animal protein available within the international market for the aquafeed industry. Spray-dried blood and spray-dried plasma (SDP) proteins have long been recognized as high-quality feed ingredients for farmed animals. In this study, we evaluated the inclusion of SDP from porcine blood (SDPP) in growing diets for gilthead sea bream. Three isonitrogenous (CP = 51.2%) and isolipidic (fat = 12.4%) diets manufactured by cold extrusion (0.8 to 1.5 mm pellet size) were prepared
by substituting high-quality fish meal with 0, 3, and 6% SDPP. The diets were tested for a period of 60 d
at 22°C with 4 replicates each (400-L cylindroconical tanks, 150 fish per tank, and initial density = 0.5 kg/
m3). The SDPP inclusion in diets for gilthead sea bream fingerlings were evaluated in terms of growth performance, feed utilization, histological organization of the intestinal mucosa, activity of oxidative stress enzymes (catalase, glutathione S-transferase, glutathione peroxidase, and glutathione reductase) in the intestine, and nonspecific serum immune parameters (lysozyme and bactericidal activity). Results from this study indicated that dietary SDPP promoted fish growth in terms of BW and length; fish fed 3% SDPP were 10.5% heavier (P < 0.05) than those fed the control diet. Spray-dried plasma from porcine blood modulated the activity of the antioxidative defenses in the intestine (P < 0.05) and increased the density of goblet cells in the intestine (P < 0.05) and benefited the host by providing an effective immune barrier against gut pathogenic microbiota. The nonspecific serum immune response in fish fed diets with SDPP was greater (P < 0.05) than in fish fed the control diet. These results indicated that the inclusion of SDPP in gilthead sea bream feed could be beneficial for the fish by enhancing intestinal and serum innate immune function and the activity of antioxidative stress enzymes of the intestine and promoting growth performance.info:eu-repo/semantics/publishedVersio
Characterization of the surface of activated carbons produced from tire residues
The surface characterisation of new activated carbons produced from tire residues by
activation with carbon dioxide was studied. The activated carbons produced were mainly basic with
point of zero charge values above 8.8. The main surface functional groups identified by FTIR were
ether, quinones, lactones, ketones, hydroxyls (free and phenol) and pyrones. The XRD analysis
shows that the materials produced have a microstructural organisation with microcrystallite height
around 1.5nm and width from 3 to 5.3nm. This analysis indicates also the possible presence of
oxides (single or mixture) of the following heteroatoms: Fe, Al, Ca, Mg, Ti, Si, K, Pb, Cd, Ba, Zn
and Sn. The results have shown the significant potential of this type of residues for activated carbon
production. Furthermore, the environment friendly use of an industrial residue is also noteworthy
Effect of levels of polymaleic acid on the structural stability of saline soils.
The effect of levels of polymaleic acid was studied on the structural stability of two saline soils exposed to intensive cultivation. Soil samples with undisturbed structure were collected and placed in containers where levels polymaleic acid (0, 10, 20 and 30L/ha) were applied diluted water, in order to raise the moisture up to field capacity. One week later, controlled drip irrigation was applied using a volume corresponding to the pluviometric precipitation of the areas where the samples were collected. The washed soil samples were taken from the containers with the objective of lowering the moisture and separating the aggregates, considering those which passed through a 4 mm sieve and were retained in a 2 mm sieve. From each soil type, four bags of aggregates weighting 1 kg were taken, received a second application of the same levels of the polymer diluted in the irrigation water, adjusting the moisture of the samples of aggregates to 80% of the field capacity. The plastic bags with the humid samples were weighted and closed to keep the moisture uniform. Three subsamples from each bag were taken every 30 days to determine the weighed mean diameter (WMD) of the aggregates up to 150 days. After washing the soil with distilled water, WMD of the aggregates was reduced in the two soil types, in different proportions. The highest levels caused a lower reduction on the stability grade, showing the role of the polymer on protection of the aggregates against disintegration. After 30 days of the second application of the polymer on washed aggregates, WMD started to increase differently for all the treatments, showing is effect on increasing structural stability of the soils
Monitoring molecular dynamics of bacterial cellulose composites reinforced with graphene oxide by carboxymethyl cellulose addition
[EN] Broadband Dielectric Relaxation Spectroscopy was performed to study the molecular dynamics of dried Bacterial Cellulose/Carboxymethyl Cellulose-Graphene Oxide (BC/CMC-GO) composites as a function of the concentration of CMC in the culture media. At low temperature the dielectric spectra are dominated by a dipolar process labelled as a beta -relaxation, whereas electrode polarization and the contribution of dc-conductivity dominate the spectra at high temperatures and low frequency. The CMC concentration affects the morphological structure of cellulose and subsequently alters its physical properties. X-ray diffractometry measurements show that increasing the concentration of CMC promotes a decrease of the Ia/Ib ratio. This structural change in BC, that involves a variation in inter- and intramolecular interactions (hydrogen-bonding interactions), affects steeply their molecular dynamics. So, an increase of CMC concentration produces a significantly decrease of the -relaxation strength and an increase of the dc-conductivity.This work was supported by the DGCYT [MAT2015-63955-R]; the Vice-Rectorate for Research of the Pontificia Universidad Catolica del Peril and the National Council of Science, Technology and Technological Innovation of Peru (CONCYTEC/FONDECYT).Sanchis Sánchez, MJ.; Carsí Rosique, M.; Gomez, CM.; Culebras, M.; Gonzales, K.; Gisbert Torres, F. (2017). Monitoring molecular dynamics of bacterial cellulose composites reinforced with graphene oxide by carboxymethyl cellulose addition. Carbohydrate Polymers. 157:353-360. https://doi.org/10.1016/j.carbpol.2016.10.00135336015
Composite Eco-Friendly Sound Absorbing Materials Made of Recycled Textile Waste and Biopolymers
[EN] In recent years, the interest in reusing recycled fibers as building materials has been growing as a consequence of their ability to reduce the production of waste and the use of virgin resources, taking advantage of the potential that fibrous materials may offer to improve thermal and acoustic comfort. Composite panels, made of 100% wool waste fibers and bound by means of either a chitosan solution and a gum Arabic solution, were tested and characterized in terms of acoustic and non-acoustic properties. Samples with a 5 cm thickness and different density values were made to investigate the influence of flow resistivity on the final performance. Experimental results demonstrated that the samples had thermal conductivity ranging between 0.049 and 0.060 W/(m K), well comparable to conventional building materials. Similarly, acoustic results were very promising, showing absorption coefficients that, for the given thickness, were generally higher than 0.5 from 500 Hz on, and higher than 0.9 from 1 kHz on. Finally, the effects of the non-acoustic properties and of the air gap behind the samples on the acoustic behavior were also analyzed, proving that the agreement with absorption values predicted by empirical models was also very good.C.R. scholarship has been funded by the Italian Ministry of Education, University and Research (MIUR), within the National Research Program "PON Ricerca e Innovazione 2014-2020" (grant DOT1748713 N.5).Rubino, C.; Bonet-Aracil, M.; Gisbert Paya, J.; Liuzzi, S.; Stefanizzi, P.; Zamorano Cantó, M.; Martellotta, F. (2019). Composite Eco-Friendly Sound Absorbing Materials Made of Recycled Textile Waste and Biopolymers. Materials. 12(23):1-18. https://doi.org/10.3390/ma12234020S1181223Joshi, S. ., Drzal, L. ., Mohanty, A. ., & Arora, S. (2004). Are natural fiber composites environmentally superior to glass fiber reinforced composites? Composites Part A: Applied Science and Manufacturing, 35(3), 371-376. doi:10.1016/j.compositesa.2003.09.016Hesterberg, T. W., & Hart, G. A. (2001). Synthetic Vitreous Fibers: A Review of Toxicology Research and Its Impact on Hazard Classification. Critical Reviews in Toxicology, 31(1), 1-53. doi:10.1080/20014091111668Bakatovich, A., Davydenko, N., & Gaspar, F. (2018). Thermal insulating plates produced on the basis of vegetable agricultural waste. Energy and Buildings, 180, 72-82. doi:10.1016/j.enbuild.2018.09.032Martellotta, F., Cannavale, A., De Matteis, V., & Ayr, U. (2018). Sustainable sound absorbers obtained from olive pruning wastes and chitosan binder. Applied Acoustics, 141, 71-78. doi:10.1016/j.apacoust.2018.06.022Kymäläinen, H.-R., & Sjöberg, A.-M. (2008). Flax and hemp fibres as raw materials for thermal insulations. Building and Environment, 43(7), 1261-1269. doi:10.1016/j.buildenv.2007.03.006Zhou, X., Zheng, F., Li, H., & Lu, C. (2010). An environment-friendly thermal insulation material from cotton stalk fibers. Energy and Buildings, 42(7), 1070-1074. doi:10.1016/j.enbuild.2010.01.020Ashour, T., Georg, H., & Wu, W. (2011). Performance of straw bale wall: A case of study. Energy and Buildings, 43(8), 1960-1967. doi:10.1016/j.enbuild.2011.04.001Lim, Z. Y., Putra, A., Nor, M. J. M., & Yaakob, M. Y. (2018). Sound absorption performance of natural kenaf fibres. Applied Acoustics, 130, 107-114. doi:10.1016/j.apacoust.2017.09.012Hosseini Fouladi, M., Ayub, M., & Jailani Mohd Nor, M. (2011). Analysis of coir fiber acoustical characteristics. Applied Acoustics, 72(1), 35-42. doi:10.1016/j.apacoust.2010.09.007Wei, K., Lv, C., Chen, M., Zhou, X., Dai, Z., & Shen, D. (2015). Development and performance evaluation of a new thermal insulation material from rice straw using high frequency hot-pressing. Energy and Buildings, 87, 116-122. doi:10.1016/j.enbuild.2014.11.026Berardi, U., & Iannace, G. (2015). Acoustic characterization of natural fibers for sound absorption applications. Building and Environment, 94, 840-852. doi:10.1016/j.buildenv.2015.05.029Rubino, C., Liuzzi, S., Martellotta, F., & Stefanizzi, P. (2018). Textile wastes in building sector: A review. Modelling, Measurement and Control B, 87(3), 172-179. doi:10.18280/mmc_b.870309Ricciardi, P., Belloni, E., & Cotana, F. (2014). Innovative panels with recycled materials: Thermal and acoustic performance and Life Cycle Assessment. Applied Energy, 134, 150-162. doi:10.1016/j.apenergy.2014.07.112Barbero-Barrera, M. del M., Pombo, O., & Navacerrada, M. de los Á. (2016). Textile fibre waste bindered with natural hydraulic lime. Composites Part B: Engineering, 94, 26-33. doi:10.1016/j.compositesb.2016.03.013Echeverria, C. A., Pahlevani, F., Handoko, W., Jiang, C., Doolan, C., & Sahajwalla, V. (2019). Engineered hybrid fibre reinforced composites for sound absorption building applications. Resources, Conservation and Recycling, 143, 1-14. doi:10.1016/j.resconrec.2018.12.014Leal Filho, W., Ellams, D., Han, S., Tyler, D., Boiten, V. J., Paço, A., … Balogun, A.-L. (2019). A review of the socio-economic advantages of textile recycling. Journal of Cleaner Production, 218, 10-20. doi:10.1016/j.jclepro.2019.01.210Muñoz, I., Rodríguez, C., Gillet, D., & M. Moerschbacher, B. (2017). Life cycle assessment of chitosan production in India and Europe. The International Journal of Life Cycle Assessment, 23(5), 1151-1160. doi:10.1007/s11367-017-1290-2Mati-Baouche, N., De Baynast, H., Lebert, A., Sun, S., Lopez-Mingo, C. J. S., Leclaire, P., & Michaud, P. (2014). Mechanical, thermal and acoustical characterizations of an insulating bio-based composite made from sunflower stalks particles and chitosan. Industrial Crops and Products, 58, 244-250. doi:10.1016/j.indcrop.2014.04.022El Hage, R., Khalaf, Y., Lacoste, C., Nakhl, M., Lacroix, P., & Bergeret, A. (2018). A flame retarded chitosan binder for insulating miscanthus/recycled textile fibers reinforced biocomposites. Journal of Applied Polymer Science, 136(13), 47306. doi:10.1002/app.47306Mati-Baouche, N., de Baynast, H., Michaud, P., Dupont, T., & Leclaire, P. (2016). Sound absorption properties of a sunflower composite made from crushed stem particles and from chitosan bio-binder. Applied Acoustics, 111, 179-187. doi:10.1016/j.apacoust.2016.04.021Abuarra, A., Hashim, R., Bauk, S., Kandaiya, S., & Tousi, E. T. (2014). Fabrication and characterization of gum Arabic bonded Rhizophora spp. particleboards. Materials & Design, 60, 108-115. doi:10.1016/j.matdes.2014.03.032Elinwa, A. U., Abdulbasir, G., & Abdulkadir, G. (2018). Gum Arabic as an admixture for cement concrete production. Construction and Building Materials, 176, 201-212. doi:10.1016/j.conbuildmat.2018.04.160Delany, M. E., & Bazley, E. N. (1970). Acoustical properties of fibrous absorbent materials. Applied Acoustics, 3(2), 105-116. doi:10.1016/0003-682x(70)90031-9Johnson, D. L., Koplik, J., & Dashen, R. (1987). Theory of dynamic permeability and tortuosity in fluid-saturated porous media. Journal of Fluid Mechanics, 176(-1), 379. doi:10.1017/s0022112087000727Allard, J., & Champoux, Y. (1992). New empirical equations for sound propagation in rigid frame fibrous materials. The Journal of the Acoustical Society of America, 91(6), 3346-3353. doi:10.1121/1.402824Patnaik, A., Mvubu, M., Muniyasamy, S., Botha, A., & Anandjiwala, R. D. (2015). Thermal and sound insulation materials from waste wool and recycled polyester fibers and their biodegradation studies. Energy and Buildings, 92, 161-169. doi:10.1016/j.enbuild.2015.01.056Brown, R. J. S. (1980). Connection between formation factor for electrical resistivity and fluid‐solid coupling factor in Biot’s equations for acoustic waves in fluid‐filled porous media. GEOPHYSICS, 45(8), 1269-1275. doi:10.1190/1.1441123Pfretzschner, J., & Mª. Rodriguez, R. (1999). Acoustic properties of rubber crumbs. Polymer Testing, 18(2), 81-92. doi:10.1016/s0142-9418(98)00009-9Berryman, J. G. (1980). Confirmation of Biot’s theory. Applied Physics Letters, 37(4), 382-384. doi:10.1063/1.91951Ingard, K. U., & Dear, T. A. (1985). Measurement of acoustic flow resistance. Journal of Sound and Vibration, 103(4), 567-572. doi:10.1016/s0022-460x(85)80024-9Rey, R. del, Alba, J., Arenas, J. P., & Ramis, J. (2013). Technical Notes: Evaluation of Two Alternative Procedures for Measuring Airflow Resistance of Sound Absorbing Materials. Archives of Acoustics, 38(4), 547-554. doi:10.2478/aoa-2013-0064Jerman, M., & Černý, R. (2012). Effect of moisture content on heat and moisture transport and storage properties of thermal insulation materials. Energy and Buildings, 53, 39-46. doi:10.1016/j.enbuild.2012.07.002Jerman, M., Palomar, I., Kočí, V., & Černý, R. (2019). Thermal and hygric properties of biomaterials suitable for interior thermal insulation systems in historical and traditional buildings. Building and Environment, 154, 81-88. doi:10.1016/j.buildenv.2019.03.020Gustafsson, S. E. (1991). Transient plane source techniques for thermal conductivity and thermal diffusivity measurements of solid materials. Review of Scientific Instruments, 62(3), 797-804. doi:10.1063/1.1142087Del Rey, R., Berto, L., Alba, J., & Arenas, J. P. (2015). Acoustic characterization of recycled textile materials used as core elements in noise barriers. Noise Control Engineering Journal, 63(5), 439-447. doi:10.3397/1/376339Piégay, C., Glé, P., Gourdon, E., Gourlay, E., & Marceau, S. (2018). Acoustical model of vegetal wools including two types of fibers. Applied Acoustics, 129, 36-46. doi:10.1016/j.apacoust.2017.06.021Carosio, F., & Alongi, J. (2018). Flame Retardant Multilayered Coatings on Acrylic Fabrics Prepared by One-Step Deposition of Chitosan/Montmorillonite Complexes. Fibers, 6(2), 36. doi:10.3390/fib6020036No, H. K., Meyers, S. P., Prinyawiwatkul, W., & Xu, Z. (2007). Applications of Chitosan for Improvement of Quality and Shelf Life of Foods: A Review. Journal of Food Science, 72(5), R87-R100. doi:10.1111/j.1750-3841.2007.00383.
- …