keyword
MENU ▼
Read by QxMD icon Read
search

Analytical

keyword
https://www.readbyqxmd.com/read/28212516/sex-disparities-in-substance-abuse-research-evaluating-23-years-of-structural-neuroimaging-studies
#1
Kimberly E Lind, Eric J Gutierrez, Dorothy J Yamamoto, Michael F Regner, Sherry A McKee, Jody Tanabe
BACKGROUND: Sex differences in brain structure and clinical course of substance use disorders underscores the need to include women in structural brain imaging studies. The NIH has supported the need for research to address sex differences. We evaluated female enrollment in substance abuse structural brain imaging research and the methods used to study sex differences in substance effects. METHODS: Structural brain imaging studies published through 2016 (n=230) were evaluated for number of participants by sex and substance use status and methods used to evaluate sex differences...
January 31, 2017: Drug and Alcohol Dependence
https://www.readbyqxmd.com/read/28212478/-risk-factors-related-with-ventilator-associated-pneumonia-in-a-neonatal-intensive-care-therapy
#2
Juan Pablo Romo-Gamboa, Bertha Alicia Sandoval-Pérez, Ana Bertha Rodríguez-López, Marco Antonio Torres-González, Juan Carlos Barrera-de León
BACKGROUND: Ventilator-associated pneumonia (VAP) represents the second cause of nosocomial infections and it is associated with greater morbility, duration of mechanical ventilation (MV), and hospital stay. The objective was to determine factors related with VAP in neonates. METHODS: Analytical transversal study including newborns admitted already intubated with at least 48 hours of MV or who were intubated in Neonatal Therapy. VAP was defined according to the criteria of the Centers for Disease Control and Prevention: "those patients submitted to MV during at least 48 hours"...
2017: Revista Médica del Instituto Mexicano del Seguro Social
https://www.readbyqxmd.com/read/28212470/-prediabetes-as-a-riskmarker-for-stress-induced-hyperglycemia-in-critically-ill-adults
#3
Diego Jesús García-Gallegos, Eliseo Luis-López
BACKGROUND: It is not known if patients with prediabetes, a subgroup of non-diabetic patients that usually present hyperinsulinemia, have higher risk to present stress-induced hyperglycemia. The objective was to determine if prediabetes is a risk marker to present stress-induced hyperglycemia. METHODS: Analytic, observational, prospective cohort study of non-diabetic critically ill patients of a third level hospital. We determined plasmatic glucose and glycated hemoglobin (HbA1c) at admission to diagnose stress-induced hyperglycemia (glucose ≥ 140 mg/dL) and prediabetes (HbA1c between 5...
2017: Revista Médica del Instituto Mexicano del Seguro Social
https://www.readbyqxmd.com/read/28212433/elevated-gm3-plasma-concentration-in-idiopathic-parkinson-s-disease-a-lipidomic-analysis
#4
Robin B Chan, Adler J Perotte, Bowen Zhou, Christopher Liong, Evan J Shorr, Karen S Marder, Un J Kang, Cheryl H Waters, Oren A Levy, Yimeng Xu, Hong Bin Shim, Itsik Pe'er, Gilbert Di Paolo, Roy N Alcalay
Parkinson's disease (PD) is a common neurodegenerative disease whose pathological hallmark is the accumulation of intracellular α-synuclein aggregates in Lewy bodies. Lipid metabolism dysregulation may play a significant role in PD pathogenesis; however, large plasma lipidomic studies in PD are lacking. In the current study, we analyzed the lipidomic profile of plasma obtained from 150 idiopathic PD patients and 100 controls, taken from the 'Spot' study at Columbia University Medical Center in New York. Our mass spectrometry based analytical panel consisted of 520 lipid species from 39 lipid subclasses including all major classes of glycerophospholipids, sphingolipids, glycerolipids and sterols...
2017: PloS One
https://www.readbyqxmd.com/read/28212420/transcriptome-using-illumina-sequencing-reveals-the-traits-of-spermatogenesis-and-developing-testes-in-eriocheir-sinensis
#5
Gen-Liang Li, Hui Qian
Chinese mitten crab (Eriocheir sinensis) has the spermatozoa with typical aflagellate, decondensed chromatin, cup-shaped nuclei, and radial arms. However, the mechanism of spermatogenesis during which the specific spermatozoa are generated in this species is yet unclear. Here, the transcriptome of developing testis in E. sinensis was analyzed using the ways of RNA-seq and bioinformatics analysis to identify candidate genes potentially involved in development of testis and spermatogenesis. The Illumina HiSeq2500 sequencing of three replicons of samples produced a total of 145...
2017: PloS One
https://www.readbyqxmd.com/read/28212322/detection-of-salmonella-typhimurium-on-spinach-using-phage-based-magnetoelastic-biosensors
#6
Fengen Wang, Shin Horikawa, Jiajia Hu, Howard C Wikle, I-Hsuan Chen, Songtao Du, Yuzhe Liu, Bryan A Chin
Phage-based magnetoelastic (ME) biosensors have been studied as an in-situ, real-time, wireless, direct detection method of foodborne pathogens in recent years. This paper investigates an ME biosensor method for the detection of Salmonella Typhimurium on fresh spinach leaves. A procedure to obtain a concentrated suspension of Salmonella from contaminated spinach leaves is described that is based on methods outlined in the U.S. FDA Bacteriological Analytical Manual for the detection of Salmonella on leafy green vegetables...
February 16, 2017: Sensors
https://www.readbyqxmd.com/read/28212287/big-data-analytics-for-genomic-medicine
#7
REVIEW
Karen Y He, Dongliang Ge, Max M He
Genomic medicine attempts to build individualized strategies for diagnostic or therapeutic decision-making by utilizing patients' genomic information. Big Data analytics uncovers hidden patterns, unknown correlations, and other insights through examining large-scale various data sets. While integration and manipulation of diverse genomic data and comprehensive electronic health records (EHRs) on a Big Data infrastructure exhibit challenges, they also provide a feasible opportunity to develop an efficient and effective approach to identify clinically actionable genetic variants for individualized diagnosis and therapy...
February 15, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28212173/prediction-of-conversion-to-psychosis-in-individuals-with-an-at-risk-mental-state-a-brief-update-on-recent-developments
#8
Anita Riecher-Rössler, Erich Studerus
PURPOSE OF REVIEW: So far, only little more than one-third of individuals classified as being at-risk for psychosis have been shown to actually convert to frank psychosis during follow-up. There have therefore been enormous efforts to improve the accuracy of predicting this transition. We reviewed the most recent studies in the field with the aim to clarify whether accuracy of prediction has been improved by the different research endeavors and what could be done to further improve it, and/or what alternative goals research should pursue...
February 15, 2017: Current Opinion in Psychiatry
https://www.readbyqxmd.com/read/28212109/sustainable-exposure-prevention-through-innovative-detection-and-remediation-technologies-from-the-niehs-superfund-research-program
#9
Heather F Henry, William A Suk
Innovative devices and tools for exposure assessment and remediation play an integral role in preventing exposure to hazardous substances. New solutions for detecting and remediating organic, inorganic, and mixtures of contaminants can improve public health as a means of primary prevention. Using a public health prevention model, detection and remediation technologies contribute to primary prevention as tools to identify areas of high risk (e.g. contamination hotspots), to recognize hazards (bioassay tests), and to prevent exposure through contaminant cleanups...
February 17, 2017: Reviews on Environmental Health
https://www.readbyqxmd.com/read/28212092/modeling-contrast-imaging-assisted-optimal-targeted-drug-delivery-a-touchable-communication-channel-estimation-and-waveform-design-perspective
#10
Yifan Chen, Yu Zhou, Ross Murch, Panagiotis Kosmas
To maximize the effect of treatment and minimize the adverse effect on patients, we propose to optimize nanorobotsassisted targeted drug delivery (TDD) for locoregional treatment of tumor from the perspective of touchable communication channel estimation and waveform design. The drug particles are the information molecules; the loading/injection and unloading of the drug correspond to the transmitting and receiving processes; the concentration-time profile of the drug particles administered corresponds to the signalling pulse...
February 15, 2017: IEEE Transactions on Nanobioscience
https://www.readbyqxmd.com/read/28212089/streammap-smooth-dynamic-visualization-of-high-density-streaming-points
#11
Chenhui Li, George Baciu, Han Yu
Interactive visualization of streaming points for real-time scatterplots and linear blending of correlation patterns is increasingly becoming the dominant mode of visual analytics for both big data and streaming data from active sensors and broadcasting media. To better visualize and interact with inter-stream patterns, it is generally necessary to smooth out gaps or distortions in the streaming data. Previous approaches either animate the points directly or present a sampled static heatmap. We propose a new approach, called StreamMap, to smoothly blend high-density streaming points and create a visual flow that emphasizes the density pattern distributions...
February 13, 2017: IEEE Transactions on Visualization and Computer Graphics
https://www.readbyqxmd.com/read/28212004/fluorescence-regulation-of-poly-thymine-templated-copper-nanoparticles-via-an-enzyme-triggered-reaction-towards-sensitive-and-selective-detection-of-alkaline-phosphatase
#12
Junyao Li, Ling Si, Jianchun Bao, Zhaoyin Wang, Zhihui Dai
The activity of alkaline phosphatase (ALP) is a crucial index of blood routine examinations, since the concentration of ALP is highly associated with various human diseases. To address the demands of clinical tests, efforts should be made to develop more approaches that can sense ALP in real samples. Recently, we find that fluorescence of poly(30T)-templated copper nanoparticles (CuNPs) can be directly and effectively quenched by pyrophosphate ion (PPi), provid-ing new perspective in designing sensitive biosensors based on DNA-templated CuNPs...
February 17, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28211993/recent-lab-on-chip-developments-for-novel-drug-discovery
#13
REVIEW
Nauman Khalid, Isao Kobayashi, Mitsutoshi Nakajima
Microelectromechanical systems (MEMS) and micro total analysis systems (μTAS) revolutionized the biochemical and electronic industries, and this miniaturization process became a key driver for many markets. Now, it is a driving force for innovations in life sciences, diagnostics, analytical sciences, and chemistry, which are called 'lab-on-a-chip, (LOC)' devices. The use of these devices allows the development of fast, portable, and easy-to-use systems with a high level of functional integration for applications such as point-of-care diagnostics, forensics, the analysis of biomolecules, environmental or food analysis, and drug development...
February 17, 2017: Wiley Interdisciplinary Reviews. Systems Biology and Medicine
https://www.readbyqxmd.com/read/28211938/establishment-and-validation-of-a-microfluidic-capillary-gel-electrophoresis-platform-method-for-purity-analysis-of-therapeutic-monoclonal-antibodies
#14
Michael T Smith, Shu Zhang, Troy Adams, Byron DiPaolo, Jennifer Dally
Capillary and microfluidic chip electrophoresis technologies are heavily utilized for development, characterization, release, and stability testing of biopharmaceuticals. Within the biopharmaceutical industry, CE-SDS and M-CGE are commonly used for purity determination by separation and quantitation of size-based variants. M-CGE is used primarily as a R&D tool for product and process development, while cGMP release and stability testing applications are commonly reserved for CE-SDS. This paper describes the establishment of a M-CGE platform method to be used for R&D and cGMP applications, including release and stability testing, for monoclonal antibodies...
February 17, 2017: Electrophoresis
https://www.readbyqxmd.com/read/28211917/concentration-dependent-oligomerization-of-an-alpha-helical-antifreeze-polypeptide-makes-it-hyperactive
#15
Sheikh Mahatabuddin, Yuichi Hanada, Yoshiyuki Nishimiya, Ai Miura, Hidemasa Kondo, Peter L Davies, Sakae Tsuda
A supersoluble 40-residue type I antifreeze protein (AFP) was discovered in a righteye flounder, the barfin plaice (bp). Unlike all other AFPs characterized to date, bpAFP transitions from moderately-active to hyperactive with increasing concentration. At sub-mM concentrations, bpAFP bound to pyramidal planes of ice to shape it into a bi-pyramidal hexagonal trapezohedron, similarly to the other moderately-active AFPs. At mM concentrations, bpAFP uniquely underwent further binding to the whole ice crystal surface including the basal planes...
February 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28211743/two-element-mixture-of-bose-and-fermi-superfluids
#16
Richard Roy, Alaina Green, Ryan Bowler, Subhadeep Gupta
We report on the production of a stable mixture of bosonic and fermionic superfluids composed of the elements ^{174}Yb and ^{6}Li which feature a strong mismatch in mass and distinct electronic properties. We demonstrate elastic coupling between the superfluids by observing the shift in dipole oscillation frequency of the bosonic component due to the presence of the fermions. The measured magnitude of the shift is consistent with a mean-field model and its direction determines the previously unknown sign of the interspecies scattering length to be positive...
February 3, 2017: Physical Review Letters
https://www.readbyqxmd.com/read/28211727/analytic-gravitational-waveforms-for-generic-precessing-binary-inspirals
#17
Katerina Chatziioannou, Antoine Klein, Neil Cornish, Nicolás Yunes
Binary systems of two compact objects circularize and spiral toward each other via the emission of gravitational waves. The coupling of the spins of each object with the orbital angular momentum causes the orbital plane to precess, which leads to modulation of the gravitational wave signal. Until now, generating frequency-domain waveforms for fully precessing systems for use in gravitational wave data analysis meant numerically integrating the equations of motion, then Fourier transforming the result, which is very computationally intensive for systems that complete hundreds or thousands of cycles in the sensitive band of a detector...
February 3, 2017: Physical Review Letters
https://www.readbyqxmd.com/read/28211720/dynamical-response-near-quantum-critical-points
#18
Andrew Lucas, Snir Gazit, Daniel Podolsky, William Witczak-Krempa
We study high-frequency response functions, notably the optical conductivity, in the vicinity of quantum critical points (QCPs) by allowing for both detuning from the critical coupling and finite temperature. We consider general dimensions and dynamical exponents. This leads to a unified understanding of sum rules. In systems with emergent Lorentz invariance, powerful methods from quantum field theory allow us to fix the high-frequency response in terms of universal coefficients. We test our predictions analytically in the large-N O(N) model and using the gauge-gravity duality and numerically via quantum Monte Carlo simulations on a lattice model hosting the interacting superfluid-insulator QCP...
February 3, 2017: Physical Review Letters
https://www.readbyqxmd.com/read/28211686/multipole-moments-in-the-effective-fragment-potential-method
#19
Colleen Bertoni, Lyudmila V Slipchenko, Alston J Misquitta, Mark S Gordon
In the effective fragment potential (EFP) method the Coulomb potential is represented using a set of multipole moments generated by the distributed multipole analysis (DMA) method. Misquitta, Stone, and Fazeli recently developed a basis space-iterated stockholder atom (BS-ISA) method to generate multipole moments. This study assesses the accuracy of the EFP interaction energies using sets of multipole moments generated from the BS-ISA method, and from several versions of the DMA method (such as analytic and numeric grid-based), with varying basis sets...
February 17, 2017: Journal of Physical Chemistry. A
https://www.readbyqxmd.com/read/28211676/electrochemical-genetic-profiling-of-single-cancer-cells
#20
Josep L Acero Sanchez, Hamdi Joda, Olivier Yves Henry, Beata W Solnestam, Linda Kvastad, Pelin S Akan, Joakim Lundeberg, Nadja Laddach, Dheeraj Ramakrishnan, Ian Riley, Carmen Schwind, Daniel Latta, Ciara K O' Sullivan
Recent understandings in the development and spread of cancer have lead to the realisation of novel single cell analysis platforms focused on circulating tumour cells (CTCs). A simple, rapid and inexpensive analytical platform capable of providing genetic information of these rare cells is highly desirable to support clinicians and researchers alike to either support the selection or adjustment of therapy or provide fundamental insights into cell function and cancer progression mechanisms. We report on the genetic profiling of single cancer cells, exploiting a combination of multiplex ligation-dependent probe amplification (MLPA) and electrochemical detection...
February 17, 2017: Analytical Chemistry
keyword
keyword
30555
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"