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621
Food consumption associated with depression, anxiety and stress in students entering a public university
Published 2025-01-01“…Cross-sectional study investigated the association of fresh or minimally processed foods and ultra-processed food consumption with symptoms of depression, anxiety and stress in students from a Brazilian public university. …”
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622
Cyclostationary Feature Detection Based on Compressed Sensing and Wavelet De-Noising
Published 2015-08-01“…To improve the vacant spectrum utilization,ultra-wideband spectrum sensing is critical for cognitive radio (CR)as it enables secondary users to dynamically access the unoccupied spectrum bands.However,the fast and accurate spectrum sensing is still a challenge over an ultra-wide bandwidth in low signal to noise ratio(SNR) environment.A compressed sensing (CS)-feature detector based on wavelet de-noising was proposed to perform wideband detection in low SNR.CS was proposed to improve the efficiency of wideband spectrum sensing.And two dimensional wavelet transform was introduced to deal with the noise in spectral coherence function(SCF)by the CS process.As a result,the detection accuracy in low SNR was improved.It is found that the proposed technology can detect spectrum holes at a range of low SNR through simulation results.…”
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623
Random access scheme for different MTC scenario requirement
Published 2020-11-01“…For the different random access requirements of the mixed scenarios of ultra-reliable low latency (URLLC) and massive machine type communications (mMTC) in MTC,a random access scheme based on devices grouping was proposed.The proposed scheme divided the MTC devices into several groups based on the timing advance (TA) information:for the URLLC scenario,preamble resources were reserved for core devices in each group,and the URLLC devices accessed the network via the contention-free mechanism,to satisfy the ultra-reliable low latency access requirement; for the mMTC scenario,the base station utilized the different TA information in different group to identify devices selecting the same preamble,and performed successive interference cancellation (SIC) algorithm to detect the data information,to satisfy the massive access requirement.Simulation results demonstrate that the proposed scheme can significantly increase the number of the successful devices.…”
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624
The Radicalization of Neoliberalism in Brazil and the Role of the Ministry of Tourism in Coalition Presidentialism
Published 2024-12-01“…Based on the premise that the government system influences the institutional capacity of official tourism bodies, policies and public investments, the study aims to analyze how the Brazilian Ministry of Tourism was co-opted by coalition presidentialism in ultra-liberal governments, from 2016 to 2022, focusing on the distribution of ministerial positions and budget control by political parties. …”
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625
DESIGN,ANALYSIS AND SIMULATION OF A NOVEL QUASI-ZERO STIFFNESS VIBRATION ISOLATION SYSTEM
Published 2018-01-01“…The vibration simulation results prove that the quasi-zero stiffness system has greater advantage than linear system in low or ultra-low vibration isolation.…”
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626
A New Linear Motor Force Ripple Compensation Method Based on Inverse Model Iterative Learning and Robust Disturbance Observer
Published 2018-01-01“…Permanent magnet linear motors (PMLMs) are gaining increasing interest in ultra-precision and long stroke motion stage, such as reticle and wafer stage of scanner for semiconductor lithography. …”
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627
STATIC CHARACTERISTICS ANALYSIS OF SPHERICAL HYBRID SLIDING BEARINGS BASED ON CFD
Published 2021-01-01“…Aiming at the lubrication characteristics of spherical hybrid sliding bearings( SHSBs) for an ultra-high precision grinding machine,the Reynolds equations often adopt more assumptions,and the calculation accuracy cannot meet the design requirements of ultra-high precision bearings. …”
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628
Reconciling predicted and measured viscosity parameters in high concentration therapeutic antibody solutions
Published 2024-12-01“…Monoclonal antibody (mAb) solution viscosity in ultra-high concentration formulations is a key developability consideration in mAb development risk mitigation strategies that has implications for downstream processing and patient safety. …”
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629
Research and application of V2X based on MEC
Published 2020-06-01“…The large-scale construction of 5G wireless communication network enhances the development of C-V2X (cellular-vehicle to everything) towards diversified directions.Large bandwidth services,such as high-definition video and AR/VR,bring great transmission and processing pressure to the classical network architecture.Meanwhile,traffic safety services characterized by ultra-high reliability and low delay put stringent requirements on network performance.The network architecture of providing services and computing localization through setting user panel down to close to the terminals and MEC (multiple access edge computing) can meet the requirements of data short loop transmission and ultra-low delay in the internet of vehicles scenario.The combination of MEC and V2X was explored in depth,the MEC networking scenario,MEC network architecture and the key technologies and challenges of MEC were analyzed.The combination scheme of MEC and C-V2X integration of network planning was provided.The application of MEC in C-V2X was presented in several specific scenarios.…”
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630
The First Galaxies and the Likely Discovery of Their Fossils in the Local Group
Published 2010-01-01“…We believe that current observational data supports the thesis that a fraction of the new ultra-faint dwarfs discovered in the Local Group are fossil dwarfs and we predict the existence of a population of ultra-faint dwarfs with lower surface brightness than currently observed.…”
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631
Axion-like relics: new constraints from old comagnetometer data
Published 2020-01-01“…We show that the decade-old experimental data place the most stringent terrestrial constraints to date on ultra-light axion-like particles coupled to neutrons. …”
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632
Vegan Triple-Ironman (Raw Vegetables/Fruits)
Published 2014-01-01“…To this end, the vegan ultra triathlete and a control group of 10 Ironman triathletes of similar age living on a mixed diet were investigated, using echocardiography and spiroergometry. …”
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633
Facile, High Quality Sequencing of Bacterial Genomes from Small Amounts of DNA
Published 2014-01-01“…In this study, we evaluated the NEBNext Ultra library preparation reagents for sequencing bacterial genomes. …”
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634
Cell stress response to combined ionizing and non-ionizing radiation and magnetic fields: a review based on human buccal epithelium cells
Published 2024-12-01“…Conclusions: Vague effect of ultra-low doses of IR with modifying abilities of EHF-microwaves and MF was shown on the example of HGQ. …”
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635
Xpert MTB/XDR implementation in South Africa: cost outcomes of centralised vs. decentralised approaches
Published 2024-05-01“…INTRODUCTION: In South Africa, Xpert® MTB/RIF Ultra (Ultra) is the recommended diagnostic assay for TB with line-probe assays for first- (LPAfl) and second-line drugs (LPAsl) providing additional drug susceptibility testing (DST) for samples that were rifampicin-resistant (RR-TB). …”
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636
Spaceborne Optical Switching Technology for Satellite Internet
Published 2022-06-01“…With the increasing demands for ultra-high speed and large-capacity information transmission such as satellite remote sensing, big data super computing center, video battlefield and 6G mobile communication.The satellite laser communication technology using laser instead of traditional microwave as information carrier has become development trend.It is an eff ective mean to solve the bottleneck of microwave communication bandwidth and reduce the shortage of spectrum resources.In the future, we need to build a satellite internet with global coverage, which are needed to provide the capabilities that terrestrial optical fi ber networks do not have (large coverage, low-delay, services in sparsely populated areas, no geographical obstacles, etc.).The spaceborne optical switching technology is the key and core for the ultra-high speed and large capacity information processing on satellite nodes.Firstly, the development context of satellite internet based on laser communication was introduced, the importance of spaceborne optical switching technology for satellite internet was analyzed.It focused on the detailed classifi cation and comparison, system and information processing mode of space-borne optical switching technology, and showed the potential technical scheme in the future.Then, the characteristics and application schemes of optical switching core devices were analyzed and studied to provided reference for the next generation of satellite internet technology research.…”
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637
„Není Rusko bez cara.“ Romanovské jubileum v roce 1913
Published 2007-01-01“…The tsarist family was in the center of the festivities, and Nicholas II wanted to make them the „non-party celebrations“. But the presence of ultra-right organizations in the festivities was clear, at least in St. …”
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638
Metasurface-Enabled Microphotonic Biosensors via BIC Modes
Published 2025-01-01“…BIC-enabled metasurfaces, utilizing dielectric, plasmonic, and hybrid structures, achieve ultra-high Q-factors and amplify target molecule interactions on functionalized sensor surfaces. …”
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639
Do Ultraconservative Access Cavities Hinder Endodontic Reintervention in Mandibular Incisors? A Laboratory Investigation
Published 2024-01-01“…Twenty mandibular central incisors were distributed into two groups (n = 10): TradAC group—traditional access cavities and UltraAC.Inc group—ultraconservative access cavities. …”
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640
Analysis of the spatial distribution of metabolites in Aloe vera leaves by mass spectrometry imaging and UHPLC-UHRMS
Published 2025-01-01“…The composition was studied using two mass spectrometry imaging techniques: silver-109 nanoparticles assisted laser desorption/ionization mass spectrometry imaging (109AgNPs-LDI-MSI) and laser ablation-remote atmospheric pressure photoionization/chemical ionization mass spectrometry imaging (LARAPPI/CI-MSI) and the identification was aided by ultra-high-performance liquid chromatography and ultra-high-resolution mass spectrometry (UHPLC-UHRMS) analysis. …”
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