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PubMed Journals Articles About "Quantitative Tracking Combinatorially Engineered Populations With Multiplexed Binary" RSS

10:26 EST 12th December 2018 | BioPortfolio

Quantitative Tracking Combinatorially Engineered Populations With Multiplexed Binary PubMed articles on BioPortfolio. Our PubMed references draw on over 21 million records from the medical literature. Here you can see the latest Quantitative Tracking Combinatorially Engineered Populations With Multiplexed Binary articles that have been published worldwide.

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Showing "Quantitative tracking combinatorially engineered populations with multiplexed binary" PubMed Articles 1–25 of 11,000+

Tracking of Engineered Bacteria In Vivo Using Non-Standard Amino Acid Incorporation.

The rapidly growing field of microbiome research presents a need for better methods of monitoring gut microbes in vivo with high spatial and temporal resolution. We report a method of tracking microbes in vivo within the gastrointestinal tract by programming them to incorporate non-standard amino acids (NSAA) and labeling them via click chemistry. Using established machinery constituting an orthogonal translation system (OTS), we engineered Escherichia coli to incorporate p-azido-L-phenylalanine (pAzF) in p...


Evolutionary potential varies across populations and traits in the neotropical oak Quercus oleoides.

Heritable variation in polygenic (quantitative) traits is critical for adaptive evolution and is especially important in this era of rapid climate change. In this study, we examined the levels of quantitative genetic variation of populations of the tropical tree Quercus oleoides Cham. and Schlect. for a suite of traits related to resource use and drought resistance. We tested whether quantitative genetic variation differed across traits, populations and watering treatments. We also tested potential evolutio...

A multiplexed quantitative MALDI MS approach for assessing activity and inhibition of protein kinases based on post-enrichment dephosphorylation of phosphopeptides by MOF-templated porous CeO2.

Protein kinase is regarded as a potential target for anticancer therapeutics due to its relation to many diseases, in which more than one kinase participates in the cell signaling cascades. We herein demonstrate a multiplexed quantitative matrix-assisted laser desorption/ionization mass spectrometry (MALDI MS) approach to simultaneously assess the activity and inhibition of multiple protein kinases. In this design, substrate peptides phosphorylated by kinases of interest are specifically harvested by MOF-te...


An assessment of the performance of the logistic mixed model for analyzing binary traits in maize and sorghum diversity panels.

The logistic mixed model (LMM) is well-suited for the genome-wide association study (GWAS) of binary agronomic traits because it can include fixed and random effects that account for spurious associations. The recent implementation of a computationally efficient model fitting and testing approach now makes it practical to use the LMM to search for markers associated with such binary traits on a genome-wide scale. Therefore, the purpose of this work was to assess the applicability of the LMM for GWAS in crop...

Visual Tracking via Dynamic Graph Learning.

Existing visual tracking methods usually localize a target object with a bounding box, in which the performance of the foreground object trackers or detectors is often affected by the inclusion of background clutter. To handle this problem, we learn a patch-based graph representation for visual tracking. The tracked object is modeled by with a graph by taking a set of non-overlapping image patches as nodes, in which the weight of each node indicates how likely it belongs to the foreground and edges are weig...

A digital approach to dynamic jaw tracking using a target tracking system and a structured-light three-dimensional scanner.

This technical procedure describes a method for tracking mandibular movement using a three-dimensional (3D) optical scanner and target tracking system to digitally portray the motion of the mandible and temporomandibular joints by merging cone beam computed tomography (CBCT) data.

Single-shot quantitative phase microscopy based on color-multiplexed Fourier ptychography.

We present a single-shot quantitative phase imaging (QPI) method based on color-multiplexed Fourier ptychographic microscopy (FPM). Three light-emitting diode (LED) elements with respective R/G/B channels in a programmable LED array illuminate the specimen simultaneously, providing triangle oblique illuminations matching the numerical aperture of the objective precisely. A color image sensor records the light transmitted through the specimen, and three monochromatic intensity images at each color channel ar...

High-Throughput Signaling Profiling in Blood Platelets by Multiplexed Phosphoflow Cytometry.

Multiplexed phosphoflow cytometry is a novel method that provides rapid and quantitative readouts on intracellular phosphoprotein signaling. In this approach, flow cytometry is combined with fluorescent cell barcoding (FCB) to facilitate high-throughput analyses of signaling events. After stimulation, fixed and permeabilized platelets are labeled with distinct dye intensities to create unique fluorescent signatures for individual samples. These uniquely labeled samples can be combined for simultaneous antib...

Detection of Sub-fM DNA with Target Recycling and Self-Assembly Amplification on Graphene Field Effect Biosensors.

All-electronic DNA biosensors based on graphene field effect transistors (GFETs) offer the prospect of simple and cost-effective diagnostics. For GFET sensors based on complementary probe DNA, the sensitivity is limited by the binding affinity of the target oligonucleotide, in the nM-range for 20-mer targets. We report a ~20,000× improvement in sensitivity through the use of engineered hairpin probe DNA that allows for target recycling and hybridization chain reaction. This enables detection of 21-mer targ...

Modeling CNS Myelination Using Micropillar Arrays.

Myelination necessitates axons to initiate concentric membrane wrapping by oligodendroglia in the CNS. Here, we describe an in vitro system that models CNS myelination with a minimally permissive environment, termed Binary Indicant for myelination using Micropillar Arrays (BIMA). Engineered with conical micropillar arrays, BIMA allows for rapid translation of oligodendroglial wrapping and differentiation into binary readout under confocal microscopy. Fabricated into 96- or 384-well plates, BIMA serves as a ...

A Structured Tumor-Immune Microenvironment in Triple Negative Breast Cancer Revealed by Multiplexed Ion Beam Imaging.

The immune system is critical in modulating cancer progression, but knowledge of immune composition, phenotype, and interactions with tumor is limited. We used multiplexed ion beam imaging by time-of-flight (MIBI-TOF) to simultaneously quantify in situ expression of 36 proteins covering identity, function, and immune regulation at sub-cellular resolution in 41 triple-negative breast cancer patients. Multi-step processing, including deep-learning-based segmentation, revealed variability in the composition of...

Evaluation of the accuracy of the CyberKnife Synchrony Respiratory Tracking System using a plastic scintillator.

The Synchrony Respiratory Tracking System of the CyberKnife Robotic Radiosurgery System (Accuray, Inc., Sunnyvale CA) enables real-time tracking of moving targets such as lung and liver tumors during radiotherapy. Although film measurements have been used for quality assurance of the tracking system, they cannot evaluate the temporal tracking accuracy. We have developed a verification system using a plastic scintillator that can evaluate the temporal accuracy of the CyberKnife Synchrony.

What is "Non-Binary" and What Do I Need to Know? A Primer for Surgeons Providing Chest Surgery for Transgender Patients.

The majority of transgender research focuses on patients who fall within the gender binary of either trans-male or trans-female. This largely omits understanding of the "non-binary" gender identity, as it pertains to surgical care.

Investigating MLC tracking in stereotactic arrhythmic radioablation (STAR) treatments for atrial fibrillation.

Stereotactic arrhythmia radioablation (STAR) is an emerging treatment option for atrial fibrillation (AF). However, it faces possibly the most challenging motion compensation scenario: both respiratory and cardiac motion. MLC tracking is clinically used for lung cancer treatments but its capabilities with intracardiac targets is unknown. We report the first experimental results of MLC tracking for intracardiac targets. Methods: Five AF STAR plans of varying complexity were created. All delivered...

An extended Kalman filter for mouse tracking.

Animal tracking is an important tool for observing behavior, which is useful in various research areas. Animal specimens can be tracked using dynamic models and observation models that require several types of data. Tracking mouse has several barriers due to the physical characteristics of the mouse, their unpredictable movement, and cluttered environments. Therefore, we propose a reliable method that uses a detection stage and a tracking stage to successfully track mouse. The detection stage detects the su...

Methylcellulose and polyacrylate binary hydrogels used as rectal suppository to prevent type I diabetes.

The purpose of this study was to fabricate a novel binary hydrogel, and the insulin-loaded hydrogel was used as rectal suppository to prevent type I diabetes. The binary hydrogel was synthesized via solution polymerization. Its structure was studied by Fourier transform infrared spectroscopy (FTIR) and Raman spectra. The swelling behaviors of binary hydrogels were revealed in pH 1.2, 6.8 and 7.4 buffers, respectively. Their inner morphologies were observed with a scanning electron microscope (SEM). Insulin ...

Multiplexed Quantitation of Intraphagocyte Mycobacterium tuberculosis Secreted Protein Effectors.

The pathogenic potential of Mycobacterium tuberculosis largely depends on ESX secretion systems exporting members of the multigenic Esx, Esp, and PE/PPE protein families. To study the secretion and regulation patterns of these proteins while circumventing immune cross-reactions due to their extensive sequence homologies, we developed an approach that relies on the recognition of their MHC class II epitopes by highly discriminative T cell receptors (TCRs) of a panel of T cell hybridomas. The latter were e...

Observation of Stronger-than-Binary Correlations with Entangled Photonic Qutrits.

We present the first experimental confirmation of the quantum-mechanical prediction of stronger-than-binary correlations. These are correlations that cannot be explained under the assumption that the occurrence of a particular outcome of an n≥3-outcome measurement is due to a two-step process in which, in the first step, some classical mechanism precludes n-2 of the outcomes and, in the second step, a binary measurement generates the outcome. Our experiment uses pairs of photonic qutrits distributed betwe...

The effect of concurrent hand movement on estimated time to contact in a prediction motion task.

In many activities, we need to predict the arrival of an occluded object. This action is called prediction motion or motion extrapolation. Previous researchers have found that both eye tracking and the internal clocking model are involved in the prediction motion task. Additionally, it is reported that concurrent hand movement facilitates the eye tracking of an externally generated target in a tracking task, even if the target is occluded. The present study examined the effect of concurrent hand movement on...

The potential colonization histories of Opsariichthys bidens (Cyprinidae) in China using Bayesian binary MCMC analysis.

Vicariance and/or long-distance dispersal shape the distribution patterns of many extant taxa, and orogenesis and/or climate fluctuations are key factors that drive the events of vicariance and/or dispersal. In this study, we yielded biogeographical inferences from Bayesian binary MCMC (BBM) analysis to explore the potential colonization histories of Opsariichthys bidens in China and to identify potential factors responsible for the colonization histories. Many vicariance and dispersal events were identifie...

Single or mixture halogenated chemicals? Risk assessment and developmental toxicity prediction on zebrafish embryos based on weighted descriptors approach.

Halogenated chemicals including perfluoroalkyl substances (PFASs) represent an emerging class of endocrine-disrupting pollutants for human populations across the globe. Distress related to their environmental fate and toxicity has initiated several research projects, but the amount of experimental data available for these pollutants is limited. The objective of this study is to assess the toxicity of potentially "safer" alternatives, in relation to their existing counterparts. Developmental toxicity data on...

Quantitative Assessment of Alterations of Reginal Contractility of the Left Ventricle in Patients With Ischemic Heart Disease.

An important aspect of ischemic heart disease (IHD) diagnosis is the assessment of alterations of regional contractility (ARC) of the left ventricle. Speckle tracking imaging is a relatively new diagnostic method used for this purpose. Aim of this study was to identify optimal parameters of left ventricular (LV) deformation by speckle-tracking echocardiography which can differentiate quantitatively degrees of ARC of all left ventricular segments in patients with acute and chronic forms of IHD.

A Synthetic Cargo Internalization Receptor System for Nanoparticle Tracking of Individual Cell Populations by Fluorine Magnetic Resonance Imaging.

Specific detection of target structures or cells lacking particular surface epitopes still poses a serious problem for all imaging modalities. Here, we demonstrate the capability of synthetic 'cargo internalization receptors' (CIRs) for tracking of individual cell populations by 1H/19F magnetic resonance imaging (MRI). To this end, a nanobody for green fluorescent protein (GFP) was used to engineer cell surface-expressed CIRs which undergo rapid internalization after GFP binding. For 19F MR visibility, the ...

Programming Biomaterial Interactions Using Engineered Living Cells.

We have developed a biomaterials interface that allows the properties of a functionalized surface to be controlled by a population of genetically engineered bacteria. This interface was engineered by linking a genetically modified E. coli strain with a chemically functionalized surface. Critically, the E. coli was engineered to upregulate the production of biotin when induced by a small signaling molecule. This biotin would then interact with the functionalized surface to modulate the surface's binding dyna...

Model of Multiple Identity Tracking (MOMIT) 2.0: Resolving the serial vs. parallel controversy in tracking.

The present study investigated whether during tracking of multiple moving objects with distinct identities only one identity is tracked at each moment (serial tracking) or whether multiple identities can be tracked simultaneously (parallel tracking). By adopting the gaze-contingent display change technique, we manipulated in real time the presence/absence of object identities during tracking. The data on performance accuracy revealed a serial tracking pattern for facial images and a parallel pattern for col...


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