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PubMed Journals Articles About "Initial Phase Personalized Instant Messaging Second Phase Optional" RSS

13:12 EDT 30th March 2020 | BioPortfolio

Initial Phase Personalized Instant Messaging Second Phase Optional PubMed articles on BioPortfolio. Our PubMed references draw on over 21 million records from the medical literature. Here you can see the latest Initial Phase Personalized Instant Messaging Second Phase Optional articles that have been published worldwide.

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Showing "Initial phase personalized instant messaging Second phase optional" PubMed Articles 1–25 of 11,000+

Clinical importance of cold polypectomy during the insertion phase in the left side of the colon and rectum: a multicenter randomized controlled trial (PRESECT STUDY).

Colorectal polyps are often detected during insertion phase of colonoscopy, but they are commonly removed during withdrawal phase. We aimed to investigate the clinical advantages of instant removal of colorectal polyps during insertion phase to determine the appropriate strategy for polyps detected upon insertion.


Vacancy and interstitial atom evolution with the separation of the nanoscale phase in Fe-Cr alloys: phase-field simulations.

Point defects induced by irradiation affect the phase decomposition and morphology evolution of Fe-Cr alloys, which results in the increase of hardness and embrittlement. The coevolution of point defects and the Cr-enriched nanoscale α' phase was studied by using phase-field simulations, and the interactive influence of point defects and Cr-enriched nanoscale particles on the kinetics evolution was clarified. It is found that the clustering of vacancies and interstitial atoms is earlier than the separation...

Improvements of phase linearity and phase flicker of phase-only LCoS devices for holographic applications.

Significant phase distortion corrections were achieved by optimizing the digital driving patterns of phase-only liquid crystal on silicon devices for digital holographic applications. Nearly perfect phase linearity and phase flicker of 0.09% over 256 addressed phase levels in respect to the total modulation range of 2 were realized, enabling a meaningful increase of phase levels from 8 bits (256 levels) to 9 bits (512 levels). Tests were carried out to evaluate the qualities of optically reconstructed holog...


Accurate phase-shift estimation for fringe-pattern profilometry.

Fringe-pattern profilometry (FPP) has been widely used for phase reconstruction. It involves the use of phase shifting for phase retrieval. Phase-shift errors can affect the accuracy of phase reconstruction, and limited studies have been dedicated to studying phase-shift errors due to experimental, human, or environmental factors. We propose a simple and yet accurate phase-shift estimation method. Our study shows that the method is able to accurately estimate the actual phase shifts used in the FPP techniqu...

Educational Intervention to Address Infertility-Related Knowledge Gaps Among Adolescent and Young Adult Survivors of Childhood Cancer.

This study evaluates the impact of a personalized educational session on survivors' knowledge of risk for infertility and describes preferences for reproductive health care. This was a two-phase prospective study of an individualized education session for adolescent and young adult (AYA) survivors aged 18-21 years. Sessions used sex-specific visual aids (phase I) or a personalized handout (phase II). Surveys assessing knowledge of overall risk for infertility (yes/no), level of risk (none, low, moderate, o...

Optimal processing scheme for restoration of phase data corrupted by strong decorrelation noise and dislocations.

The presence of speckle noise and dislocations makes phase restoration potentially difficult in quantitative phase imaging and metrology. Unfortunately, there is no appropriate approach to deal with phase data corrupted by high speckle noise and phase dislocations. Usually, processing schemes may deal with low-pass phase filtering, phase unwrapping, or phase inpainting. This paper discusses the efficient processing to deal with noisy phase maps corrupted with phase dislocations. Six processing schemes, comb...

Mechanisms of mass transfer enhancement by phase-transfer catalysis for permanganate oxidizing dense non-aqueous phase liquid (DNAPL) TCE.

Phase transfer catalysts (PTCs) have been shown to be effective in lowering the limitation of mass transfer between aqueous oxidant MnO and NAPLs in in-situ chemical oxidation (ISCO) technologies for remediation of NAPLs. This work researched the effects of pentyltriphenylphosphonium bromide (PTPP, used as the representative PTC) for the enhancement of TCE oxidation, the extent of different treatment effects contributions and generalizability of phase transfer. Experimental results revealed that MnO exchang...

Laser phase plate for transmission electron microscopy.

Transmission electron microscopy (TEM) of rapidly frozen biological specimens, or cryo-EM, would benefit from the development of a phase plate for in-focus phase contrast imaging. Several types of phase plates have been investigated, but rapid electrostatic charging of all such devices has hindered these efforts. Here, we demonstrate electron phase manipulation with a high-intensity continuous-wave laser beam, and use it as a phase plate for TEM. We demonstrate the laser phase plate by imaging an amorphous ...

Effect of nitrite addition on the two-phase anaerobic digestion of waste activated sludge: Optimization of the acidogenic phase and influence mechanisms.

To simultaneously achieve biological denitrification and bio-energy recovery from sludge, the effects of nitrite on the two-phase anaerobic digestion (AD) of waste activated sludge were explored. Herein, effects of nitrite on the acidogenic phase are optimized, and the corresponding influence mechanisms are investigated. The experimental results show that the optimal nitrite treatment conditions for improving the acidogenic phase are an initial pH of 8.0, a nitrite addition concentration of 500 mg NO-N·L,...

G-quadruplex structures trigger RNA phase separation.

Liquid-liquid phase separation plays an important role in a variety of cellular processes, including the formation of membrane-less organelles, the cytoskeleton, signalling complexes, and many other biological supramolecular assemblies. Studies on the molecular basis of phase separation in cells have focused on protein-driven phase separation. In contrast, there is limited understanding on how RNA specifically contributes to phase separation. Here, we described a phase-separation-like phenomenon that SHORT ...

Phase-change like process through bond switching in distorted and resonantly bonded crystal.

Although some methods to improve phase-change memory efficiency have been proposed, an effective experimental approach to induce a phase-change like process without external heat energy has not yet been reported. Herein we have shown that GeTe is a prototype phase-change material, which can exhibit a non-thermal phase-change-like process under uniaxial stress. Due to its structural characteristics like directional structural instability and resonance bonding under 1% uniaxial stress, we observed that bond s...

Euclidean matrix norm algorithm for simultaneous dual-wavelength phase-shifting interferometry with blind phase shifts.

In this study, a simultaneous dual-wavelength phase-shifting interferometry system using two reference arms was built, and a simple phase retrieval method for the system with blind phase shifts was proposed using five phase-shifted interferograms. First, the unknown phase shifts were controlled independently to separate the information of single wavelength, which can be calculated directly by using the Euclidean matrix norm algorithm. Second, a wrapped phase of a single wavelength was obtained using a three...

Amalgam phase down: baseline data preceding implementation in Nigeria.

The Minimata Convention on mercury includes amalgam phase-down and eventual phase-out from dentistry. To aid its subsequent evaluation it is important to have baseline data of amalgam use in a locality prior to implementing a phase-down.

Phase-dependent gas sensitivity of MoS2 chemical sensors investigated with phase-locked MoS2.

In the present study, phase-dependent gas sensitivities of MoS2 chemical sensors were examined. While 1T-phase MoS2 (1T-MoS2) has shown better chemical sensitivity than has 2H-phase MoS2 (2H-MoS2), the instability of the 1T phase has been hindering applications of 1T-MoS2 as chemical sensors. Here, the chemical sensitivity of MoS2 locked in its 1T phase by using a ZnO phase lock was investigated. To develop MoS2 chemical sensors locked in the 1T phase, we synthesized a multi-dimensional nanomaterial by grow...

Multiwavelength-selective phase-shifting digital holography without mechanical scanning.

We propose multiwavelength in-line phase-shifting digital holography with a monochrome image sensor, single reference arm, and no mechanical scanning. We use phase-shifting interferometry selectively extracting wavelength information as a method to obtain multiwavelength object waves separately from wavelength-multiplexed phase-shifted holograms. By exploiting a liquid crystal on silicon spatial light modulator with a wide phase-modulation range as an electrically driven phase shifter in this interferometry...

DNA damage triggers increased mobility of chromosomes in G1 phase cells.

During S phase in chromosomal loci become mobile in response to DNA double-strand breaks both at the break site (local mobility) and throughout the nucleus (global mobility). Increased nuclear exploration is regulated by the recombination machinery and the DNA damage checkpoint, and is likely an important aspect of homology search. While mobility in response to DNA damage has been studied extensively in S phase, the response in interphase has not, and the question of whether homologous recombination procee...

Efficacy gap between phase II and subsequent phase III studies in oncology.

There is a trend for more flexibility in timing of evidence generation in relation to marketing authorization, including the option to complete phase III trials after authorization or not at all. This paper investigated the relation between phase II and III clinical trial efficacy in oncology.

Entanglement and thermodynamic entropy in a clean MBL system.

Whether or not the thermodynamic entropy is equal to the entanglement entropy of an eigenstate, is of fundamental interest, and is closely related to the 'Eigenstate thermalization hypothesis (ETH)'. However, this has never been exploited as a diagnostic tool in many-body localized systems. In this work, we perform this diagnostic test on a clean interacting system (subjected to a static electric field) that exhibits three distinct phases: integrable, non-integrable ergodic and non-integrable many-body-loca...

Observation of Dynamical Quantum Phase Transitions with Correspondence in an Excited State Phase Diagram.

Dynamical quantum phase transitions are closely related to equilibrium quantum phase transitions for ground states. Here, we report an experimental observation of a dynamical quantum phase transition in a spinor condensate with correspondence in an excited state phase diagram, instead of the ground state one. We observe that the quench dynamics exhibits a nonanalytical change with respect to a parameter in the final Hamiltonian in the absence of a corresponding phase transition for the ground state there. W...

Random phase shifting shadow moiré using a one-dimensional minimizer.

The introduction of a random phase-shifting technique into a shadow moiré system, where an equal and known (or unknown) phase step is used to demodulate the phase of interest, is beneficial for the improvement of measurement accuracy. However, in spite of recent advances in optical metrology phase-shifting techniques, simultaneously estimating unequal and unknown phase shifts from three random phase-shifting fringe patterns remains a significant challenge. This paper presents a one-dimensional minimizer-ba...

Antibody response patterns in chikungunya febrile phase predicts protection versus progression to chronic arthritis.

Chikungunya virus (CHIKV) infection causes acute febrile illness in humans and some of these individuals develop a debilitating chronic arthritis that can persist for months to years for reasons that remain poorly understood. In this study from India, we characterized antibody response patterns in chikungunya febrile patients and further assessed the association of these initial febrile phase antibody response patterns with protection versus progression to developing chronic arthritis. We found five distinc...

Wide area quantitative phase microscopy by spatial phase scanning digital holography.

A new technique of digital holographic microscopy is introduced for large area quantitative phase microscopy, dubbed spatial phase scanning digital holography, where the object specimen in an interferometer is scanned across the tilted reference phase field, while acquiring camera frames at regular intervals. Both the large area scan and phase shift acquisition are achieved in one sweep, using a simple optomechanical system. The technique can be useful in diverse applications such as fast scans of blood sme...

Phase-shifting digital holographic microscopy with an iterative blind reconstruction algorithm.

In phase-shifting digital holographic microscopy (PS-DHM), the reconstructed phase map is obtained after processing several holograms of the same scene with a phase shift between them. Most of the reconstruction algorithms in PS-DHM require an accurate and known phase shift between the recorded holograms. This requirement limits the applicability of the method. To ease the use of PS-DHM, this paper presents an iterative-blind phase shift extraction method based on demodulation of the different components of...

Origin of the phase separation into B2 and L21 ordered phases in X-Al-Ti (X: Fe, Co, and Ni) alloys based on the first-principles cluster variation method.

The phase separation behaviors from a single B2 ordered phase into two separate B2 and L2ordered phases in X-Al-Ti (X: Fe, Co, and Ni) alloys are analyzed utilizing the cluster variation method (CVM), based on interaction energies derived from electronic band structure calculations. A cubic approximation of the CVM is adopted for XAlTi(0 ≤ x ≤ 2) alloys limiting the interchange between Al and Ti atoms on the α- and β-sublattices of an L2ordered structure with X atoms fixed on the γ-sublattice. The ph...

Aryl Radical Selectivity in Biphasic Systems.

Aryl radicals generated in the aqueous phase of biphasic mixtures have-regardless of a comparably low polarity- a strong preference to react with aromatic substrates in the aqueous phase and not to undergo phase-transfer into a lipophilic phase, independent from the presence of a surfactant. These results represent an important prerequisite toward future studies in biological systems, which typically consist of various compartments of either hydrophilic or lipophilic character.


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