4,272 research outputs found
Weight loss, glycemic control, and cardiovascular disease risk factors in response to differential diet composition in a weight loss program in type 2 diabetes: a randomized controlled trial.
ObjectiveTo test whether a weight loss program promotes greater weight loss, glycemic control, and improved cardiovascular disease risk factors compared with control conditions and whether there is a differential response to higher versus lower carbohydrate intake.Research design and methodsThis randomized controlled trial at two university medical centers enrolled 227 overweight or obese adults with type 2 diabetes and assigned them to parallel in-person diet and exercise counseling, with prepackaged foods in a planned menu during the initial phase, or to usual care (UC; two weight loss counseling sessions and monthly contacts).ResultsRelative weight loss was 7.4% (95% CI 5.7-9.2%), 9.0% (7.1-10.9%), and 2.5% (1.3-3.8%) for the lower fat, lower carbohydrate, and UC groups (P < 0.001 intervention effect). Glycemic control markers and triglyceride levels were lower in the intervention groups compared with UC group at 1 year (fasting glucose 141 [95% CI 133-149] vs. 159 [144-174] mg/dL, P = 0.023; hemoglobin A1c 6.9% [6.6-7.1%] vs. 7.5% [7.1-7.9%] or 52 [49-54] vs. 58 [54-63] mmol/mol, P = 0.001; triglycerides 148 [134-163] vs. 204 [173-234] mg/dL, P < 0.001). The lower versus higher carbohydrate groups maintained lower hemoglobin A1c (6.6% [95% CI 6.3-6.8%] vs. 7.2% [6.8-7.5%] or 49 [45-51] vs. 55 [51-58] mmol/mol) at 1 year (P = 0.008).ConclusionsThe weight loss program resulted in greater weight loss and improved glycemic control in type 2 diabetes
Democracy under siege: how actors, communication strategies, and emerging phenomena are changing the rules in the public sphere
In the contemporary digital age, democracy faces a formidable challenge: its very essence is under siege. This challenge manifests in various forms, from the rise of populism and the strategic manipulation of emotions in political discourse to the spread of disinformation across digital platforms and the tightening control of communication in non-democratic regions. In the paper the authors explore these phenomena, shedding light on the evolving dynamics in the public sphere and the implications for democratic governance
The circumstellar envelope around the S-type AGB star W Aql Effects of an eccentric binary orbit
The CO(J=3-2) emission from the CSE of the binary S-type AGB star W Aql has
been observed at subarcsecond resolution using ALMA. The aim of this paper is
to investigate the wind properties of the AGB star and to analyse how the known
companion has shaped the CSE. The average mass-loss rate during the creation of
the detected CSE is estimated through modelling, using the ALMA brightness
distribution and previously published single-dish measurements as observational
constraints. The ALMA observations are presented and compared to the results
from a 3D smoothed particle hydrodynamics (SPH) binary interaction model with
the same properties as the W Aql system and with two different orbital
eccentricities. Three-dimensional radiative transfer modelling is performed and
the response of the interferometer is modelled and discussed. The estimated
average mass-loss rate of W~Aql agrees with previous results. The size of the
emitting region is consistent with photodissociation models. The CO(J=3-2)
emission is dominated by a smooth component overlayed with two weak arc
patterns with different separations. The larger pattern is predicted by the
binary interaction model with separations of 10" and therefore likely due to
the known companion. It is consistent with a binary orbit with low
eccentricity. The smaller separation pattern is asymmetric and coincides with
the dust distribution, but the separation timescale (200 yrs) is not consistent
with any known process of the system. The separation of the known companions of
the system is large enough to not have a very strong effect on the
circumstellar morphology. The density contrast across the envelope of a binary
with an even larger separation will not be easily detectable, even with ALMA,
unless the orbit is strongly asymmetric or the AGB star has a much larger
mass-loss rate.Comment: 10 pages, 8 figure
Development of an application (INDITES software) that allows to integrate spatial and temporal information of a vineyard for the development of the digital terroir
ABSTRACT The terroir has been recognized as an important factor in wine quality and style, especially in European vineyards. There is currently a need for quantification of the factors that influence the definition of terroir, incorporating indexes that quantify variables such as soil, plant and climate, which has led to the definition of "Digital Terroir ". This paper proposes a methodology to develop the "digital terroir" through use of emerging technologies, as current procedures that should be use for the study and define of terroir which suffer from having replicable protocols. The study took place in Valdivieso Vineyard, Curicó, Chile, during the 2012 and 2013 seasons, under the Var. Cabernet Sauvignon, Merlot and Carmenere. The Ferari index (MULTIPLEX RESEARCH ™, FORCE-A), was used for the grapes quality quantification, which was obtained from field samples by a high density grid (20x20 m). Moreover, the soil and plant information was obtained by the use of equipment as follows, electrical conductivity (EM38), topography and exposure (RTK) and NDVI (Tetracam ADC). From the fruit quality index distribution curve (Ferari), 7 rated strata was developed by variety and year, which was used for training the respective model classification of the variables associated with the site. The classification algorithms were based on qualifying Boosting and vector machines (SVM). For model training, 75 % of the data was used and allowed the remaining 25 % to verify the calculation error (control data). The classification results were 95 %, 90 % and 80 %, of well classified area (R 2 >0.9 and Mean Absolute Error < 0.1) for Var.Carmenere, Cabernet Sauvignon and Merlot, respectively. Finally, the well defined grape quality area develop could be used for differential harvest and could be use for vineyard management when increase the yield it is the main goal. The described procedure and results are a keystone for the application of INDITES software presented on this work
Reproductive and bloom patterns of Pelagia noctiluca in the Strait of Messina, Italy
Investigations on sexual reproduction of jellyfish are essential to understanding mechanisms and patterns
of outbreaks formation. Pelagia noctiluca (Forskål, 1775) (Scyphozoa) is known as the predominant
jellyfish species with direct development in Western and Central Mediterranean Sea. In this paper we
used integrated morphometric, histological, and biochemical approaches to investigate the annual
reproductive biology of P. noctiluca from the Strait of Messina (South Thyrrenian Sea), a key proliferation
area for this species due to favourable temperatures and high productivity. From November 2011 to
September 2012, P. noctiluca sexual reproduction occurred throughout the year, with two seasonal peaks
(autumn, spring) of spawning and embryonic development. Gonads of female P. noctiluca were characterized
by a large amount of mature eggs of small size (diameter < 200 mm) during high food availability,
whereas fewer, larger eggs (diameter > 200 mm) were detected during low availability of prey.
Two morphometric indexes were applied: the Gonad-Somatic Index (GSI, gonadal/somatic tissue dry
weight ratio) and Fecundity Index (FI, n eggs mm2 * gonadal dry weight). The FI showed longer
spawning periods than the GSI, providing a better causal-mechanistic explanation for the year-round
occurrence of P. noctiluca in the Strait of Messina. Protein contents of the gonads changed seasonally,
with the highest concentrations during the pre-spawning periods. We suggest that investigations on
jellyfish sexual reproduction can provide biological information relevant for understanding mechanisms
of jellyfish blooms as well as for the management of coastal zones affected by outbreaks of gelatinous
species
WaLiN-GUI: a graphical and auditory tool for neuron-based encoding
Neuromorphic computing relies on spike-based, energy-efficient communication,
inherently implying the need for conversion between real-valued (sensory) data
and binary, sparse spiking representation. This is usually accomplished using
the real valued data as current input to a spiking neuron model, and tuning the
neuron's parameters to match a desired, often biologically inspired behaviour.
We developed a tool, the WaLiN-GUI, that supports the investigation of neuron
models and parameter combinations to identify suitable configurations for
neuron-based encoding of sample-based data into spike trains. Due to the
generalized LIF model implemented by default, next to the LIF and Izhikevich
neuron models, many spiking behaviors can be investigated out of the box, thus
offering the possibility of tuning biologically plausible responses to the
input data. The GUI is provided open source and with documentation, being easy
to extend with further neuron models and personalize with data analysis
functions.Comment: 4 pages, 1 figur
A method for the complete analysis of NORM building materials by γ-ray spectrometry using HPGe detectors
[EN] A methodology including software tools for analysing NORM building materials and residues by low-level gamma-ray spectrometry has been developed. It comprises deconvolution of gamma-ray spectra using the software GALEA with focus on the natural radionuclides and Monte Carlo simulations for efficiency and true coincidence summing corrections. The methodology has been tested on a range of building materials and validated against reference materials
Dataset of measured and commented pantograph electric arcs in DC railways
DC railways are characterized by particularly intense arcing caused by pantograph detachment, due to the large current intensity and the general implementation of onboard resonant filters, whose transient response is triggered by electric transients including electric arcs. Electric arc depends on the train speed (the relative speed between the sliding contact over the pantograph and the hot spot on the catenary system), the intensity of the collected pantograph current and the line voltage level. Electric arcs are broadband in nature and can trigger the system transient response dominated by the resonant filter, besides interfering with the operation of onboard equipment (such as for energy conversion and metering)
- …