10,236 research outputs found
Effect of Bacillus velezensis and Glomus intraradices on fruit quality and growth parameters in strawberry soilless growing system
This study evaluates the effect on the 'Splendor' and 'Primoris' strawberry cultivars of different dates of inoculation with Glomus intraradices, an arbuscular mycorrhizal (AM) fungus. Additionally, plants were grown in a soilless growing system with or without Bacillus velezensis at the beginning of the experiment. A completely randomized block design (2 biofertilizer treatments x 2 cultivars x 3 inoculation dates) with 2 replications was used. Each replicate consisted of one bag with 10 plants. Fruit weight, fruit quality, growth parameters, and SPAD values in young leaves were monitored from October 2011 to June 2012 in a greenhouse. At the end of the crop cycle, the microbial population of Bacillus spp. and the Glomus intraradices population were determined from the rhizosphere of the plant. Bacillus velezensis and Glomus intraradices were established in the strawberry soilless growing system. The effect of arbuscular mycorrhizae on strawberry fruit quality was more important than that on growth parameters. Biofertilizer with arbuscular mycorrhizal fungi had an inhibitory effect on fruit quality, as indicated by low TSS, pH, and TA values. The combined effect of the biofertilizer and inoculation dates of Glomus intraradices on growth parameters was more significant in the 'Primoris' cultivar than in 'Splendor'. In both cultivars, an increase in SPAD values was observed from week 12 to week 22 after planting. Depending on the cultivar selected, the date of inoculation may significantly affect plant response to AM fungal colonization in a soilless growing system.I2TEP Project (Hidroponfresa)info:eu-repo/semantics/publishedVersio
R\'enyi entropies in the limit and entanglement temperatures
Entanglement temperatures (ET) are a generalization of Unruh temperatures
valid for states reduced to any region of space. They encode in a thermal
fashion the high energy behavior of the state around a point. These
temperatures are determined by an eikonal equation in Euclidean space. We show
that the real-time continuation of these equations implies ballistic
propagation. For theories with a free UV fixed point, the ET determines the
state at a large modular temperature. In particular, we show that the
limit of R\'enyi entropies , can be computed from the ET. This establishes
a formula for these R\'enyi entropies for any region in terms of solutions of
the eikonal equations. In the limit, the relevant high-temperature
state propagation is determined by a free relativistic Boltzmann equation, with
an infinite tower of conserved currents. For the special case of states and
regions with a conformal Killing symmetry, these equations coincide with the
ones of a perfect fluid.Comment: 33 pages, 3 figure
Assessment of a Comparative Bayesian-Enhanced Population-Based Decision Model for COVID-19 Critical Care Prediction in the Dominican Republic Social Security Affiliates
Introduction: The novel coronavirus disease 2019 (COVID-19) has been a major health concern worldwide. This study aims to develop a Bayesian model to predict critical outcomes in patients with COVID-19. Methods: Sensitivity and specificity were obtained from previous meta-analysis studies. The complex vulnerability index (IVC-COV2 index for its abbreviation in Spanish) was used to set the pretest probability. Likelihood ratios were integrated into a Fagan nomogram for posttest probabilities, and IVC-COV2 + National Early Warning Score (NEWS) values and CURB-65 scores were generated. Absolute and relative diagnostic gains (RDGs) were calculated based on pretest and posttest differences. Results: The IVC-COV2 index was derived from a population of 1,055,746 individuals and was based on mortality in high-risk (71.97%), intermediate-risk (26.11%), and low-risk (1.91%) groups. The integration of models in which IVC-COV2 intermediate + NEWS ≥ 5 and CURB-65 \u3e 2 led to a number needed to (NNT) diagnose that was slightly improved in the CURB-65 model (2 vs. 3). A comparison of diagnostic gains revealed that neither the positive likelihood ratio (P = 0.62) nor the negative likelihood ratio (P = 0.95) differed significantly between the IVC-COV2 NEWS model and the CURB-65 model. Conclusion: According to the proposed mathematical model, the combination of the IVC-COV2 intermediate score and NEWS or CURB-65 score yields superior results and a greater predictive value for the severity of illness. To the best of our knowledge, this is the first population-based/mathematical model developed for use in COVID-19 critical care decision-making
Medium materials for improving frost detection on a resistive sensor
Reducing food waste demands improvements in refrigeration systems. Furthermore, the rise of temperatures worldwide demands more capable and efficient refrigeration equipment. One of the problems that affects refrigeration equipment is the accumulation of frost in the heat exchanger that reduces efficiency, and in extreme cases, blocks the air flow. Usually, defrosting is timed for the worst-case scenario, which results in many unnecessary defrosting operations that compromise the efficiency, and temperature stability in the refrigerated environment. This paper presents a low-cost resistive sensor’s reliability case studies,
using several materials and configurations.This study is within the activities of project “Pack2Life – High performance packaging”, project IDT in
consortium n.o 33792, call n.o 03/SI/2017, Ref. POCI-01-0247-FEDER-033792, promoted by COMPETE 2020
and co-funded by FEDER within Portugal 2020.
This work has was supported by the project Centro-01-0145-FEDER000017 - EMaDeS - Energy, Materials and
Sustainable Development, co-funded by the Portugal 2020 Program (PT 2020), within the Regional Operational
Program of the Center (CENTRO 2020) and the EU through the European Regional Development Fund (ERDF).
The authors thank the opportunity and financial support to carry on this project to Fundação para a Ciência e
Tecnologia (FCT) and R&D Unit “Centre for Mechanical and Aerospace Science and Technologies” (C-MAST),
under project UIDB/00151/2020.
The authors also thank Cláudia Monteiro for her assistance in the production of the ceramic samples.info:eu-repo/semantics/publishedVersio
Assessing the Gene Content of the Megagenome: Sugar Pine (Pinus lambertiana).
Sugar pine (Pinus lambertiana Douglas) is within the subgenus Strobus with an estimated genome size of 31 Gbp. Transcriptomic resources are of particular interest in conifers due to the challenges presented in their megagenomes for gene identification. In this study, we present the first comprehensive survey of the P. lambertiana transcriptome through deep sequencing of a variety of tissue types to generate more than 2.5 billion short reads. Third generation, long reads generated through PacBio Iso-Seq have been included for the first time in conifers to combat the challenges associated with de novo transcriptome assembly. A technology comparison is provided here to contribute to the otherwise scarce comparisons of second and third generation transcriptome sequencing approaches in plant species. In addition, the transcriptome reference was essential for gene model identification and quality assessment in the parallel project responsible for sequencing and assembly of the entire genome. In this study, the transcriptomic data were also used to address questions surrounding lineage-specific Dicer-like proteins in conifers. These proteins play a role in the control of transposable element proliferation and the related genome expansion in conifers
Diffusion of single active-dipolar cubes in applied fields
"Active matter" refers to a class of out-of-equilibrium systems whose ability
to transform environmental energy to kinetic energy is sought after in multiple
fields of science and at very different length scales. At microscopic scales,
an important challenge lies in overpowering the particles reorientation due to
thermal fluctuations, especially in nano-sized systems, to create non-random,
directed motion, needed for a wide range of possible applications. In this
article, we employ molecular dynamics simulations to show that the diffusion of
a self-propelling dipolar nanocube can be enhanced in a pre-defined direction
with the help of a moderately strong applied magnetic field, overruling the
effect of the thermal fluctuations. Furthermore, we show that the direction of
diffusion is given by the orientation of the net internal magnetisation of the
cube. This can be used to determine experimentally the latter in synthetically
crafted active cobalt ferrite nanocubes.Comment: 10 pages, 7 Figures, 1 Tabl
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