keyword
MENU ▼
Read by QxMD icon Read
search

PAIRS

keyword
https://www.readbyqxmd.com/read/28231603/the-effect-of-birth-order-on-neonatal-morbidity-and-mortality-in-very-preterm-twins
#1
Elad Mei-Dan, Jyotsna Shah, Shoo Lee, Prakesh S Shah, Kellie E Murphy
Objective  This retrospective cohort study examined the effect of birth order on neonatal morbidity and mortality in very preterm twins. Study Design Using 2005 to 2012 data from the Canadian Neonatal Network, very preterm twins born between 24 (0/7) and 32 (6/7) weeks of gestation were included. Odds of morbidity and mortality of second-born cotwins compared with first-born cotwins were examined by matched-pair analysis. Outcomes were neonatal death, severe brain injury (intraventricular hemorrhage grade 3 or 4 or persistent periventricular echogenicity), bronchopulmonary dysplasia, severe retinopathy of prematurity (ROP) (> stage 2), necrotizing enterocolitis (≥ stage 2), and respiratory distress syndrome (RDS)...
February 23, 2017: American Journal of Perinatology
https://www.readbyqxmd.com/read/28231525/construction-of-new-est-ssrs-for-fusarium-resistant-wheat-breeding
#2
Aysen Yumurtaci, Hulya Sipahi, Ayed Al-Abdallat, Abdulqader Jighly, Michael Baum
Surveying Fusarium resistance in wheat with easy applicable molecular markers such as simple sequence repeats (SSRs) is a prerequest for molecular breeding. Expressed sequence tags (ESTs) are one of the main sources for development of new SSR candidates. Therefore, 18.292 publicly available wheat ESTs were mined and genotyping of newly developed 55 EST-SSR derived primer pairs produced clear fragments in ten wheat cultivars carrying different levels of Fusarium resistance. Among the proved markers, 23 polymorphic EST-SSRs were obtained and related alleles were mostly found on B and D genome...
February 11, 2017: Computational Biology and Chemistry
https://www.readbyqxmd.com/read/28231406/fungal-adaptation-to-contemporary-fungicide-applications-the-case-of-botrytis-cinerea-populations-from-champagne-vineyards-france
#3
A-S Walker, V Ravigne, A Rieux, S Ali, F Carpentier, E Fournier
In addition to being one of the most acute problems impeding chemical control of fungal diseases, the evolution of fungicide resistance is an emblematic case of local adaptation to spatially heterogeneous and temporally variable selection pressures. Here we dissected the adaptation of Botrytis cinerea (the causal agent of grey mould) populations on grapes to several fungicides. We carried out a two-year survey (four collection dates) on three treated/untreated pairs of plots from vineyards in Champagne (France), and monitored the frequency of four resistant phenotypes that are unambiguously associated to four distinct genotypes...
February 23, 2017: Molecular Ecology
https://www.readbyqxmd.com/read/28231323/even-good-bots-fight-the-case-of-wikipedia
#4
Milena Tsvetkova, Ruth García-Gavilanes, Luciano Floridi, Taha Yasseri
In recent years, there has been a huge increase in the number of bots online, varying from Web crawlers for search engines, to chatbots for online customer service, spambots on social media, and content-editing bots in online collaboration communities. The online world has turned into an ecosystem of bots. However, our knowledge of how these automated agents are interacting with each other is rather poor. Bots are predictable automatons that do not have the capacity for emotions, meaning-making, creativity, and sociality and it is hence natural to expect interactions between bots to be relatively predictable and uneventful...
2017: PloS One
https://www.readbyqxmd.com/read/28231320/improved-image-quality-and-diagnostic-potential-using-ultra-high-resolution-computed-tomography-of-the-lung-with-small-scan-fov-a-prospective-study
#5
Huiyuan Zhu, Lian Zhang, Yali Wang, Preeti Hamal, Xiaofang You, Haixia Mao, Fei Li, Xiwen Sun
The aim of this study was to assess whether CT imaging using an ultra-high-resolution CT (UHRCT) scan with a small scan field of view (FOV) provides higher image quality and helps to reduce the follow-up period compared with a conventional high-resolution CT (CHRCT) scan. We identified patients with at least one pulmonary nodule at our hospital from July 2015 to November 2015. CHRCT and UHRCT scans were conducted in all enrolled patients. Three experienced radiologists evaluated the image quality using a 5-point score and made diagnoses...
2017: PloS One
https://www.readbyqxmd.com/read/28231256/advancing-the-match-mismatch-framework-for-large-herbivores-in-the-arctic-evaluating-the-evidence-for-a-trophic-mismatch-in-caribou
#6
David Gustine, Perry Barboza, Layne Adams, Brad Griffith, Raymond Cameron, Kenneth Whitten
Climate-induced shifts in plant phenology may adversely affect animals that cannot or do not shift the timing of their reproductive cycle. The realized effect of potential trophic "mismatches" between a consumer and its food varies with the degree to which species rely on dietary income and stored capital. Large Arctic herbivores rely heavily on maternal capital to reproduce and give birth near the onset of the growing season but are they vulnerable to trophic mismatch? We evaluated the long-term changes in the temperatures and characteristics of the growing seasons (1970-2013), and compared growing conditions and dynamics of forage quality for caribou at peak parturition, peak lactation, and peak forage biomass, and plant senescence between two distinct time periods over 36 years (1977 and 2011-13)...
2017: PloS One
https://www.readbyqxmd.com/read/28231250/corticospinal-excitability-measurements-using-transcranial-magnetic-stimulation-are-valid-with-intramuscular-electromyography
#7
Rebekah L S Summers, Mo Chen, Teresa J Kimberley
OBJECTIVES: Muscular targets that are deep or inaccessible to surface electromyography (sEMG) require intrinsic recording using fine-wire electromyography (fEMG). It is unknown if fEMG validly record cortically evoked muscle responses compared to sEMG. The purpose of this investigation was to establish the validity and agreement of fEMG compared to sEMG to quantify typical transcranial magnetic stimulation (TMS) measures pre and post repetitive TMS (rTMS). The hypotheses were that fEMG would demonstrate excellent validity and agreement compared with sEMG...
2017: PloS One
https://www.readbyqxmd.com/read/28230984/2d-conductive-iron-quinoid-magnets-ordering-up-to-tc-105-k-via-heterogenous-redox-chemistry
#8
Jordan A DeGayner, Ie-Rang Jeon, Lei Sun, Mircea Dinca, T David Harris
We report the magnetism and conductivity for a redox isomeric pair of iron-quinoid metal-organic frameworks (MOFs). The oxidized isomer, (Me2NH2)2[Fe2L3]·2H2O·6DMF (LH2 = 2,5-dichloro-3,6-dihydroxo-1,4-benzoquinone) was previously shown to magnetically order below 80 K in its solvated form, with the ordering temperature decreasing to 26 K upon desolvation. Here, we demonstrate this compound to exhibit electrical conductivity values up to σ = 1.4(7) × 10(-2) S/cm (Ea = 0.26(1) cm(-1)) and 1.0(3) × 10(-3) S/cm (Ea = 0...
February 23, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28230976/interrogation-of-base-pairing-of-the-spiroiminodihydantoin-diastereomers-using-the-%C3%AE-hemolysin-latch
#9
Tao Zeng, Aaron M Fleming, Yun Ding, Henry S White, Cynthia J Burrows
Spiroiminodihydantoin (Sp) is a hyperoxidized form of guanine (G) resulting from oxidation by reactive oxygen species (ROS). The lesion is highly mutagenic, and the stereocenter renders the two isomers with distinct behaviors in chemical, spectroscopic, enzymatic, and computational studies. In this work, the α-hemolysin (αHL) latch sensing zone was employed to investigate the base pairing properties of the Sp diastereomers embedded in a double-stranded DNA (dsDNA). Duplexes containing (S)-Sp consistently gave deeper current blockage, and a baseline resolution of ~0...
February 23, 2017: Biochemistry
https://www.readbyqxmd.com/read/28230973/unique-opto-electronic-structure-and-photo-reduction-properties-of-sulfur-doped-lead-chromates-explaining-their-instability-in-paintings
#10
Vanousheh Rahemi, Nasrin Sarmadian, Willemien Anaf, Koen Janssens, Dirk Lamoen, Bart Partoens, Karolien De Wael
Chrome yellow refers to a group of synthetic inorganic pigments that became popular as an artist's material from the second quarter of the 19th century. The color of the pigment, in which the chromate ion acts as a chromophore, is related to its chemical composition (PbCr1-xSxO4, with 0≤x≤0.8) and crystalline structure (monoclinic/orthorhombic). Their shades range from the yellow-orange to the paler yellow tones with increasing sulfate amount. These pigments show remarkable signs of degradation after limited time periods...
February 23, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28230926/association-between-high-expression-of-phosphorylated-akt-and-mammalian-target-of-rapamycin-and-improved-survival-in-salivary-gland-adenoid-cystic-carcinoma
#11
Dai-Qiao Ouyang, Li-Zhong Liang, Zun-Fu Ke, Guang-Sen Zheng, De-Sheng Weng, Wei-Fa Yang, Yu-Xiong Su, Gui-Qing Liao
BACKGROUND: Previous genomic studies revealed phosphotidylinositol-3-kinase (PI3K)/Akt pathway mutation in human salivary gland adenoid cystic carcinoma (ACC). No validation of its prognostic value has been reported. METHODS: P-Akt, pan-Akt, phosphorylated-mammalian target of rapamycin (p-mTOR), PI3K, and insulin-like growth factor-1 receptor beta (IGF-1Rβ) were detected on 120 salivary gland ACC/adjacent salivary gland pairs immunohistochemically and were correlated with clinicopathological data...
February 23, 2017: Head & Neck
https://www.readbyqxmd.com/read/28230858/ngs-based-transcriptome-profiling-reveals-biomarkers-for-companion-diagnostics-of-the-tgf-%C3%AE-receptor-blocker-galunisertib-in-hcc
#12
Yuan Cao, Rahul Agarwal, Francesco Dituri, Luigi Lupo, Paolo Trerotoli, Serena Mancarella, Peter Winter, Gianluigi Giannelli
Transforming growth factor-beta (TGF-β) signaling has gained extensive interest in hepatocellular carcinoma (HCC). The small molecule kinase inhibitor galunisertib, targeting the TGF-β receptor I (TGF-βRI), blocks HCC progression in preclinical models and shows promising effects in ongoing clinical trials. As the drug is not similarly effective in all patients, this study was aimed at identifying new companion diagnostics biomarkers for patient stratification. Next-generation sequencing-based massive analysis of cDNA ends was used to investigate the transcriptome of an invasive HCC cell line responses to TGF-β1 and galunisertib...
February 23, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28230812/urban-pollutant-transport-and-infiltration-into-buildings-using-perfluorocarbon-tracers
#13
James C Matthews, Asan Bacak, M Anwar H Khan, Matthew D Wright, Michael Priestley, Damien Martin, Carl J Percival, Dudley E Shallcross
People spend the majority of their time indoors and therefore the quality of indoor air is worthy of investigation; indoor air quality is affected by indoor sources of pollutants and from pollutants entering buildings from outdoors. In this study, unique perfluorocarbon tracers were released in five experiments at a 100 m and ~2 km distance from a large university building in Manchester, UK and tracer was also released inside the building to measure the amount of outdoor material penetrating into buildings and the flow of material within the building itself...
February 21, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28230756/synthesis-and-structural-evaluation-of-organo-ruthenium-complexes-with-%C3%AE-diketonates
#14
Matija Uršič, Tanja Lipec, Anton Meden, Iztok Turel
Four novel ruthenium organometallic complexes: [(η⁶-p-cymene)Ru(4,4,4-trifluoro-1-(4-bromophenyl)-1,3-butanedione)Cl] (1), [(η⁶-p-cymene)Ru(4,4,4-trifluoro-1-(4-bromophenyl)-1,3-butanedione)pta]PF₆ (2), [(η⁶-p-cymene)Ru(4,4,4-trifluoro-1-(4-iodophenyl)-1,3-butanedione)Cl] (3) and [(η⁶-p-cymene)Ru(4,4,4-trifluoro-1-(4-iodophenyl)-1,3-butanedione)pta]PF₆ (4) were synthesized and characterized by elemental analysis, infrared (IR), UV-Vis, NMR and mass spectroscopy and single-crystal X-ray diffraction...
February 20, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28230569/procedure-oriented-torsional-anatomy-of-the-hand-for-spasticity-injection
#15
Joslyn John, John Cianca, Faye Chiou-Tan, Sindhu Pandit, Erin Furr-Stimming, Katherine H Taber
OBJECTIVES: To provide musculoskeletal ultrasound (MSKUS) images of hand anatomy in the position of hemiparetic flexion as a reference for spasticity injections. After a stroke, spasticity can result in anatomic distortion of the hand. Spasticity may require treatment with botulinum toxin or phenol injections. Anatomic distortion may decrease the accuracy of injections. Standard anatomic references are of limited utility because they are not in this spastic hemiparetic position. There presently is no anatomic reference in the literature for these spastic postures...
February 23, 2017: Journal of Computer Assisted Tomography
https://www.readbyqxmd.com/read/28230532/optimization-of-volumetric-breast-density-estimation-in-digital-mammograms
#16
Katharina Holland, Albert Gubern-Merida, Ritse Mann, Nico Karssemeijer
Fibroglandular tissue volume and percent density can be estimated in unprocessed mammograms using a physics-based method, which relies on an internal reference value representing the projection of fat only. However, pixels representing fat only may not be present in dense breasts, causing an underestimation of density measurements. In this work, we investigate alternative approaches for obtaining a tissue reference value to improve density estimations, particularly in dense breasts. Two of three investigated reference values (F1, F2) are percentiles of the pixel value distribution in the breast interior (the contact area of breast and compression paddle)...
February 23, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/28230385/auditory-cue-absence-as-a-conditioned-stimulus-for-delay-eyeblink-conditioning
#17
Matthew M Campolattaro, Sean W Savage, Olga Lipatova
The present experiment was designed to determine if the absence of an auditory cue (i.e., a "tone-off" cue) would be an effective conditioned stimulus (CS) for delay eyeblink conditioning and to test if the medial geniculate nucleus (MGN) is part of the sensory pathway for tone-off conditioning. Rats were given paired or unpaired delay eyeblink conditioning to examine if responding to a tone-off CS was due to an associative process. An inactivation technique was performed on a separate group of rats to determine if the MGN is needed to express tone-off conditioning...
February 23, 2017: Behavioral Neuroscience
https://www.readbyqxmd.com/read/28230366/investigation-of-ionization-pattern-of-the-adjacent-acidic-residues-in-the-dxdxe-motif-of-gh-18-chitinases-using-theoretical-pka-calculations
#18
Piyanat Meekrathok, Predrag Kukic, Jens Erik Nielsen, Wipa Suginta
GH-18 chitinases are chitinolytic enzymes, primarily responsible for the recycling of insoluble chitin biomaterials. These enzymes contain three invariant acidic active-site residues within a DXDXE motif, which play a synergistic role in the catalytic cycle of chitin degradation. We employed a pKa calculation approach to approximate the protonation states of residues D1, D2 and E in the DXDXE motif of 75 GH-18 chitinases. Theoretical pH-activity profiles of these enzymes were subsequently constructed and compared with the experimentally determined pH-activity profiles...
February 23, 2017: Journal of Chemical Information and Modeling
https://www.readbyqxmd.com/read/28230348/nmr-structures-of-gcn4p-are-largely-conserved-when-ion-pairs-are-disrupted-at-acidic-ph-but-show-a-relaxation-of-the-coiled-coil-superhelix
#19
Anne R Kaplan, Megan R Brady, Mark W Maciejewski, Richard A Kammerer, Andrei T Alexandrescu
To understand the roles ion pairs play in stabilizing coiled coils we determined NMR structures of GCN4p at three pH values. At pH 6.6 all acidic residues are fully charged, at pH 4.4 they are half-charged, and at pH 1.5 they are protonated and uncharged. The α-helix monomer and coiled coil structures of GCN4p are largely conserved, except for a loosening of the coiled coil quaternary structure with decreasing pH. Differences going from neutral to acidic pH include (i) an unwinding of the coiled coil superhelix due to the loss of inter-chain ion pair contacts, (ii) a small increase in the separation of the monomers in the dimer, (iii) a loosening of knobs-into-holes packing motifs, and (iv) an increased separation between oppositely charged residues that participate in ion pairs at neutral pH...
February 23, 2017: Biochemistry
https://www.readbyqxmd.com/read/28230275/the-development-and-correlates-of-gender-role-attitudes-in-african-american-youth
#20
Chun Bun Lam, Christine Stanik, Susan M McHale
This research examined the longitudinal trajectories and family correlates of gender role attitudes in African American youth in a sample of 166 sibling pairs residing with their mothers and fathers. Multilevel modelling revealed that (1) girls and boys exhibited significant declines in gender attitude traditionality from ages 9 to 15 that levelled off through age 18, (2) mothers' (but not fathers') gender role attitude traditionality was positively related to youth's attitude traditionality, and (3) within-person variation in mothers' (but not fathers') racial discrimination experiences was negatively related to within-person variation in youth's gender role attitude traditionality...
February 23, 2017: British Journal of Developmental Psychology
keyword
keyword
43837
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"