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https://www.readbyqxmd.com/read/28727841/river-specific-macrogenomic-diversity-in-simulium-guianense-s-l-diptera-simuliidae-a-complex-of-tropical-american-vectors-associated-with-human-onchocerciasis
#1
Peter H Adler, Neusa Hamada, Jeane Marcelle Cavalcante do Nascimento, Maria Eugenia Grillet
Simulium guianense Wise is a Latin American vector complex of black flies associated with transmission of the causal agent of human onchocerciasis (river blindness). An analysis of the chromosomal banding patterns of 607 larvae of S. guianense s. l. revealed a high level of variation involving 83 macrogenomic rearrangements across 25 populations in Brazil, French Guiana, and Venezuela. The 25 populations were assigned to 13 cytoforms (A1, A2, B1-B4, C, D, E1-E4, and F), some of which are probably valid species...
2017: PloS One
https://www.readbyqxmd.com/read/28727736/persistent-damaged-bases-in-dna-allow-mutagenic-break-repair-in-escherichia-coli
#2
Jessica M Moore, Raul Correa, Susan M Rosenberg, P J Hastings
Bacteria, yeast and human cancer cells possess mechanisms of mutagenesis upregulated by stress responses. Stress-inducible mutagenesis potentially accelerates adaptation, and may provide important models for mutagenesis that drives cancers, host pathogen interactions, antibiotic resistance and possibly much of evolution generally. In Escherichia coli repair of double-strand breaks (DSBs) becomes mutagenic, using low-fidelity DNA polymerases under the control of the SOS DNA-damage response and RpoS general stress response, which upregulate and allow the action of error-prone DNA polymerases IV (DinB), II and V to make mutations during repair...
July 20, 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28727546/a-formative-evaluation-of-a-diabetes-prevention-program-using-the-re-aim-framework-in-a-learning-health-care-system-utah-2013-2015
#3
Kimberly D Brunisholz, Jaewhan Kim, Lucy A Savitz, Mia Hashibe, Lisa H Gren, Sharon Hamilton, Kelly Huynh, Elizabeth A Joy
INTRODUCTION: Evaluation of interventions can help to close the gap between research and practice but seldom takes place during implementation. Using the RE-AIM framework, we conducted a formative evaluation of the first year of the Intermountain Healthcare Diabetes Prevention Program (DPP). METHODS: Adult patients who met the criteria for prediabetes (HbA1c of 5.70%-6.49% or fasting plasma glucose of 100-125 mg/dL) were attributed to a primary care provider from August 1, 2013, through July 31, 2014...
July 20, 2017: Preventing Chronic Disease
https://www.readbyqxmd.com/read/28727443/plasmonic-thermal-decomposition-digestion-of-proteins-a-rapid-on-surface-protein-digestion-technique-for-mass-spectrometry-imaging
#4
Rong Zhou, Franco Basile
A method based on plasmon surface resonance absorption and heating was developed to perform a rapid on-surface protein thermal decomposition and digestion suitable for imaging MS and/or profiling. This photo-thermal process or plasmonic thermal decomposition/digestion (plasmonic-TDD) method incorporates a continuous wave (CW) laser excitation and gold nanoparticles (Au-NPs) to induce known thermal decomposition reactions that cleave peptides and proteins specifically at the C-terminus of aspartic acid and at the N-terminus of cysteine...
July 20, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28726287/the-sound-and-the-fury-late-positive-potential-is-sensitive-to-sound-affect
#5
Darin R Brown, James F Cavanagh
Emotion is an emergent construct of multiple distinct neural processes. EEG is uniquely sensitive to real-time neural computations, and thus is a promising tool to study the construction of emotion. This series of studies aimed to probe the mechanistic contribution of the late positive potential (LPP) to multimodal emotion perception. Experiment 1 revealed that LPP amplitudes for visual images, sounds, and visual images paired with sounds were larger for negatively rated stimuli than for neutrally rated stimuli...
July 20, 2017: Psychophysiology
https://www.readbyqxmd.com/read/28725451/feasibility-of-the-trial-procedures-for-a-randomized-controlled-trial-of-a-community-based-peer-led-wheelchair-training-program-for-older-adults
#6
Krista L Best, William C Miller, François Routhier, Janice J Eng
BACKGROUND: A novel peer-led manual wheelchair (MWC) training program may support the training needs of older adults, but establishing program feasibility is a pragmatic first step. The purpose of this study was to evaluate the feasibility of a peer-led Wheelchair training Self-Efficacy Enhanced for Use (WheelSeeU) program. METHODS: Forty MWC users (mean age 65 years) were randomly assigned to the experimental (WheelSeeU) or control group. Feasibility indicators of process, resources, management, and safety were collected throughout the study...
2018: Pilot and Feasibility Studies
https://www.readbyqxmd.com/read/28725031/polarization-entangled-photon-pair-sources-based-on-spontaneous-four-wave-mixing-assisted-by-polarization-mode-dispersion
#7
Pisek Kultavewuti, Eric Y Zhu, Xingxing Xing, Li Qian, Vincenzo Pusino, Marc Sorel, J Stewart Aitchison
Photonic-based qubits and integrated photonic circuits have enabled demonstrations of quantum information processing (QIP) that promises to transform the way in which we compute and communicate. To that end, sources of polarization-entangled photon pair states are an important enabling technology. However, such states are difficult to prepare in an integrated photonic circuit. Scalable semiconductor sources typically rely on nonlinear optical effects where polarization mode dispersion (PMD) degrades entanglement...
July 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28724934/full-color-large-area-transmissive-holograms-enabled-by-multi-level-diffractive-optics
#8
Nabil Mohammad, Monjurul Meem, Xiaowen Wan, Rajesh Menon
We show that multi-level diffractive microstructures can enable broadband, on-axis transmissive holograms that can project complex full-color images, which are invariant to viewing angle. Compared to alternatives like metaholograms, diffractive holograms utilize much larger minimum features (>10 µm), much smaller aspect ratios (<0.2) and thereby, can be fabricated in a single lithography step over relatively large areas (>30 mm ×30 mm). We designed, fabricated and characterized holograms that encode various full-color images...
July 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28724102/impact-of-biochar-organic-and-inorganic-carbon-on-soil-co2-and-n2o-emissions
#9
Rivka B Fidel, David A Laird, Timothy B Parkin
Biochar has been shown to influence soil CO and NO emissions following application to soil, but the presence of carbonates in biochars has largely confounded efforts to differentiate among labile and recalcitrant C pools in biochar and establish their timeframe of influence. Understanding the mechanism, magnitude, and duration of biochar C pools' influence on C and N dynamics is imperative to successful implementation of biochar for C sequestration. Here we therefore aim to assess biochar organic and inorganic C pool impacts on CO and NO emissions from soil amended with two untreated biochars, inorganic carbon (as NaCO), acid (HCl) and bicarbonate (NaHCO) extracts of the biochars, and acid and bicarbonate/acid-washed biochars during a 140-d soil incubation...
May 2017: Journal of Environmental Quality
https://www.readbyqxmd.com/read/28723557/crystal-structure-of-the-human-ribosome-in-complex-with-denr-mct-1
#10
Ivan B Lomakin, Elena A Stolboushkina, Anand T Vaidya, Chenguang Zhao, Maria B Garber, Sergey E Dmitriev, Thomas A Steitz
The repertoire of the density-regulated protein (DENR) and the malignant T cell-amplified sequence 1 (MCT-1/MCTS1) oncoprotein was recently expanded to include translational control of a specific set of cancer-related mRNAs. DENR and MCT-1 form the heterodimer, which binds to the ribosome and operates at both translation initiation and reinitiation steps, though by a mechanism that is yet unclear. Here, we determined the crystal structure of the human small ribosomal subunit in complex with DENR-MCT-1. The structure reveals the location of the DENR-MCT-1 dimer bound to the small ribosomal subunit...
July 18, 2017: Cell Reports
https://www.readbyqxmd.com/read/28722656/corrupting-the-dna-damage-response-a-critical-role-for-rad52-in-tumor-cell-survival
#11
Rachel Lieberman, Ming You
The DNA damage response enables cells to survive, maintain genome integrity, and to safeguard the transmission of high-fidelity genetic information. Upon sensing DNA damage, cells respond by activating this multi-faceted DNA damage response leading to restoration of the cell, senescence, programmed cell death, or genomic instability if the cell survives without proper repair. However, unlike normal cells, cancer cells maintain a marked level of genomic instability. Because of this enhanced propensity to accumulate DNA damage, tumor cells rely on homologous recombination repair as a means of protection from the lethal effect of both spontaneous and therapy-induced double-strand breaks (DSBs) in DNA...
July 15, 2017: Aging
https://www.readbyqxmd.com/read/28722545/trna-engineering-for-manipulating-genetic-code
#12
Takayuki Katoh, Yoshihiko Iwane, Hiroaki Suga
In ribosomal translation, only 20 kinds of proteinogenic amino acids (pAAs), namely 19 l-amino acids and glycine, are exclusively incorporated into polypeptide chain. To overcome this limitation, various methods to introduce non-proteinogenic amino acids (npAAs) other than the 20 pAAs have been developed to date. However, the repertoire of amino acids that can be simultaneously introduced is still limited. Moreover, the efficiency of npAA incorporation is not always sufficient depending on their structures...
July 19, 2017: RNA Biology
https://www.readbyqxmd.com/read/28720852/quantum-critical-scaling-under-periodic-driving
#13
Salvatore Lorenzo, Jamir Marino, Francesco Plastina, G Massimo Palma, Tony J G Apollaro
Universality is key to the theory of phase transitions, stating that the equilibrium properties of observables near a phase transition can be classified according to few critical exponents. These exponents rule an universal scaling behaviour that witnesses the irrelevance of the model's microscopic details at criticality. Here we discuss the persistence of such a scaling in a one-dimensional quantum Ising model under sinusoidal modulation in time of its transverse magnetic field. We show that scaling of various quantities (concurrence, entanglement entropy, magnetic and fidelity susceptibility) endures up to a stroboscopic time τ bd , proportional to the size of the system...
July 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28720767/assessment-of-the-occurrence-spatiotemporal-variations-and-geoaccumulation-of-fifty-two-inorganic-elements-in-sewage-sludge-a-sludge-management-revisit
#14
Fidèle Suanon, Qian Sun, Xiaoyong Yang, Qiaoqiao Chi, Sikandar I Mulla, Daouda Mama, Chang-Ping Yu
The limited information about the sludge quality has made its management a top environmental challenge. In the present study, occurrence and the spatiotemporal variations of 52 inorganic elements were investigated in the sludge samples from three wastewater treatment plants (WWTPs) in Xiamen city, China. The results showed, the occurrence of 49 elements with the concentrations in the range of >125-53500 mg kg(-1) dry sludge (DS) for commonly used industrial metals, 1.22-14.0 mg kg(-1) DS for precious metals, and 1...
July 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28720612/translating-staff-experience-into-organisational-improvement-the-heads-up-stepped-wedge-cluster-controlled-non-randomised-trial
#15
Samuel Pannick, Thanos Athanasiou, Susannah J Long, Iain Beveridge, Nick Sevdalis
OBJECTIVES: Frontline insights into care delivery correlate with patients' clinical outcomes. These outcomes might be improved through near-real time identification and mitigation of staff concerns. We evaluated the effects of a prospective frontline surveillance system on patient and team outcomes. DESIGN: Prospective, stepped wedge, non-randomised, cluster controlled trial; prespecified per protocol analysis for high-fidelity intervention delivery. PARTICIPANTS: Seven interdisciplinary medical ward teams from two hospitals in the UK...
July 18, 2017: BMJ Open
https://www.readbyqxmd.com/read/28720575/hsp72-and-nek6-cooperate-to-cluster-amplified-centrosomes-in-cancer-cells
#16
Josephina Sampson, Laura O'Regan, Martin Js Dyer, Richard Bayliss, Andrew M Fry
Cancer cells frequently possess extra amplified centrosomes clustered into two poles whose pseudo-bipolar spindles exhibit reduced fidelity of chromosome segregation and promote genetic instability. Inhibition of centrosome clustering triggers multipolar spindle formation and mitotic catastrophe, offering an attractive therapeutic approach to selectively kill cells with amplified centrosomes. However, mechanisms of centrosome clustering remain poorly understood. Here, we identify a new pathway that acts through NIMA-related kinase 6 (Nek6) and Hsp72 to promote centrosome clustering...
July 18, 2017: Cancer Research
https://www.readbyqxmd.com/read/28720416/emotional-fmr-auditory-paradigm-demonstrates-normalization-of-limbic-hyperactivity-after-cognitive-behavior-therapy-for-auditory-hallucinations
#17
Eduardo J Aguilar, Iluminada Corripio, Gracián García-Martí, Eva Grasa, Luis Martí-Bonmatí, Beatriz Gómez-Ansón, Julio Sanjuán, Fidel Núñez-Marín, Esther Lorente-Rovira, María J Escartí, Alison Brabban, Douglas Turkington
No abstract text is available yet for this article.
July 15, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28720181/computerized-tests-of-team-performance-and-crew-coordination-suitable-for-military-aviation-settings
#18
Ben D Lawson, Thomas W Britt, Amanda M Kelley, Jeremy R Athy, Shauna M Legan
INTRODUCTION: The coordination of team effort on shared tasks is an area of inquiry. A number of tests of team performance in challenging environments have been developed without comparison or standardization. This article provides a systematic review of the most accessible and usable low-to-medium fidelity computerized tests of team performance and determines which are most applicable to military- and aviation-relevant research, such as studies of group command, control, communication, and crew coordination...
August 1, 2017: Aerospace Medicine and Human Performance
https://www.readbyqxmd.com/read/28720140/a-mixed-methods-protocol-for-developing-and-testing-implementation-strategies-for-evidence-based-obesity-prevention-in-childcare-a-cluster-randomized-hybrid-type-iii-trial
#19
Taren Swindle, Susan L Johnson, Leanne Whiteside-Mansell, Geoffrey M Curran
BACKGROUND: Despite the potential to reach at-risk children in childcare, there is a significant gap between current practices and evidence-based obesity prevention in this setting. There are few investigations of the impact of implementation strategies on the uptake of evidence-based practices (EBPs) for obesity prevention and nutrition promotion. This study protocol describes a three-phase approach to developing and testing implementation strategies to support uptake of EBPs for obesity prevention practices in childcare (i...
July 18, 2017: Implementation Science: IS
https://www.readbyqxmd.com/read/28720079/implementation-effectiveness-trial-of-an-ecological-intervention-for-physical-activity-in-ethnically-diverse-low-income-senior-centers
#20
Porchia Rich, Gregory A Aarons, Michelle Takemoto, Veronica Cardenas, Katie Crist, Khalisa Bolling, Brittany Lewars, Cynthia Castro Sweet, Loki Natarajan, Yuyan Shi, Kelsie M Full, Eileen Johnson, Dori E Rosenberg, Melicia Whitt-Glover, Bess Marcus, Jacqueline Kerr
BACKGROUND: As the US population ages, there is an increasing need for evidence based, peer-led physical activity programs, particularly in ethnically diverse, low income senior centers where access is limited. METHODS/DESIGN: The Peer Empowerment Program 4 Physical Activity' (PEP4PA) is a hybrid Type II implementation-effectiveness trial that is a peer-led physical activity (PA) intervention based on the ecological model of behavior change. The initial phase is a cluster randomized control trial randomized to either a peer-led PA intervention or usual center programming...
July 18, 2017: BMC Public Health
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