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https://www.readbyqxmd.com/read/28521506/new-products
#1
Andreas Mandelis
In order to supplement manufacturers' information, this Department will welcome the submission by our readers of brief communications reporting measurements on the physical properties of materials which supersede earlier data or suggest new research applications.
March 2017: Review of Scientific Instruments
https://www.readbyqxmd.com/read/28513826/noncontingent-reinforcement-without-extinction-plus-differential-reinforcement-of-alternative-behavior-during-treatment-of-problem-behavior
#2
Jennifer N Fritz, Lynsey M Jackson, Nicole A Stiefler, Barbara S Wimberly, Amy R Richardson
The effects of noncontingent reinforcement (NCR) without extinction during treatment of problem behavior maintained by social positive reinforcement were evaluated for five individuals diagnosed with autism spectrum disorder. A continuous NCR schedule was gradually thinned to a fixed-time 5-min schedule. If problem behavior increased during NCR schedule thinning, a continuous NCR schedule was reinstated and NCR schedule thinning was repeated with differential reinforcement of alternative behavior (DRA) included...
May 17, 2017: Journal of Applied Behavior Analysis
https://www.readbyqxmd.com/read/28469995/computational-analysis-of-host-pathogen-protein-interactions-between-humans-and-different-strains-of-enterohemorrhagic-escherichia-coli
#3
Tungadri Bose, K V Venkatesh, Sharmila S Mande
Serotype O157:H7, an enterohemorrhagic Escherichia coli (EHEC), is known to cause gastrointestinal and systemic illnesses ranging from diarrhea and hemorrhagic colitis to potentially fatal hemolytic uremic syndrome. Specific genetic factors like ompA, nsrR, and LEE genes are known to play roles in EHEC pathogenesis. However, these factors are not specific to EHEC and their presence in several non-pathogenic strains indicates that additional factors are involved in pathogenicity. We propose a comprehensive effort to screen for such potential genetic elements, through investigation of biomolecular interactions between E...
2017: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/28456272/new-products
#4
Andreas Mandelis
In order to supplement manufacturers' information, this Department will welcome the submission by our readers of brief communications reporting measurements on the physical properties of materials which supersede earlier data or suggest new research applications.
April 2017: Review of Scientific Instruments
https://www.readbyqxmd.com/read/28453222/noncontingent-reinforcement-competes-with-response-performance
#5
Michael E Kelley, Cy B Nadler, Catalina Rey, Sarah Cowie, Christopher A Podlesnik
Noncontingent reinforcement is a commonly used procedure to decrease levels of problem behavior. Goals of this intervention are to decrease motivation, responding, and the functional relation between behavior and consequences, but it could also possibly compete with performance of alternative desirable responses. In the current study, we assessed the effects of noncontingent reinforcement arranged from 0% to 100% of sessions on performance of alternative responding across two experiments. Experiment 1 assessed manding (i...
April 28, 2017: Journal of the Experimental Analysis of Behavior
https://www.readbyqxmd.com/read/28453220/teaching-mands-for-information-using-when-to-children-with-autism
#6
Robin K Landa, Bethany Hansen, M Alice Shillingsburg
Previous research has evaluated contrived motivating operations to teach mands for information. However, literature evaluating acquisition of the mand when? is comparatively limited. As an extension of Shillingsburg, Bowen, Valentino, & Pierce (2014), we taught three children with autism to engage in mands for information using when under alternating conditions in which a contrived establishing operation was present (EOP) or absent (EOA). Following training with a constant prompt delay, all participants acquired the mand for information and demonstrated correct use of the provided information and a decrease in inappropriate attempts to access restricted items...
April 28, 2017: Journal of Applied Behavior Analysis
https://www.readbyqxmd.com/read/28444104/psychomotor-ability-and-short-term-memory-and-reading-and-mathematics-achievement-in-children
#7
Cherée Murrihy, Maria Bailey, John Roodenburg
Objective: The aim of our study was to examine whether the findings from previous research, indicating the role of short-term memory as a mediator of the relationship between motor coordination and academic achievement in adolescents, is also evident in a younger child population. Method: The study utilized a quantative cross-sectional design involving 133 children aged 8-12. The McCarron Assessment of Neuromuscular Development (MAND) provided four indicators of psychomotor ability (Finger Nose, Walking, Balancing, and Jumping)...
April 24, 2017: Archives of Clinical Neuropsychology: the Official Journal of the National Academy of Neuropsychologists
https://www.readbyqxmd.com/read/28436542/intercontinental-telehealth-coaching-of-therapists-to-improve-verbalizations-by-children-with-autism
#8
Ana Barkaia, Trevor F Stokes, Tamar Mikiashvili
This study examined the effects of intercontinental telehealth coaching on the mastery of therapists' skills and improvements in verbalizations by children with autism, testing whether telehealth can be a solution for underserved communities in developing countries such as Georgia-Sakartvelo in Eastern Europe. Three therapists delivering and three children with autism receiving early-intervention services from the nongovernmental organization Children of Georgia in Tbilisi participated. Experimenters provided coaching from Virginia, USA to therapists in Georgia-Sakartvelo...
April 24, 2017: Journal of Applied Behavior Analysis
https://www.readbyqxmd.com/read/28406112/doctors-of-tomorrow-an-innovative-curriculum-connecting-underrepresented-minority-high-school-students-to-medical-school
#9
Jordan Derck, Kate Zahn, Jonathan F Finks, Simanjit Mand, Gurjit Sandhu
BACKGROUND: Racial minorities continue to be underrepresented in medicine (URiM). Increasing provider diversity is an essential component of addressing disparity in health delivery and outcomes. The pool of students URiM that are competitive applicants to medical school is often limited early on by educational inequalities in primary and secondary schooling. A growing body of evidence recognizing the importance of diversifying health professions advances the need for medical schools to develop outreach collaborations with primary and secondary schools to attract URiMs...
September 2016: Education for Health: Change in Training & Practice
https://www.readbyqxmd.com/read/28376709/using-structural-knowledge-in-the-protein-data-bank-to-inform-the-search-for-potential-host-microbe-protein-interactions-in-sequence-space-application-to-mycobacterium-tuberculosis
#10
Gaurang Mahajan, Shekhar C Mande
BACKGROUND: A comprehensive map of the human-M. tuberculosis (MTB) protein interactome would help fill the gaps in our understanding of the disease, and computational prediction can aid and complement experimental studies towards this end. Several sequence-based in silico approaches tap the existing data on experimentally validated protein-protein interactions (PPIs); these PPIs serve as templates from which novel interactions between pathogen and host are inferred. Such comparative approaches typically make use of local sequence alignment, which, in the absence of structural details about the interfaces mediating the template interactions, could lead to incorrect inferences, particularly when multi-domain proteins are involved...
April 4, 2017: BMC Bioinformatics
https://www.readbyqxmd.com/read/28362785/step-scan-differential-fourier-transform-infrared-photoacoustic-spectroscopy-dftir-pas-a-spectral-deconvolution-method-for-weak-absorber-detection-in-the-presence-of-strongly-overlapping-background-absorptions
#11
Lixian Liu, Andreas Mandelis, Huiting Huan, Kirk H Michaelian
The determination of small absorption coefficients of trace gases in the atmosphere constitutes a challenge for analytical air contaminant measurements, especially in the presence of strongly absorbing backgrounds. A step-scan differential Fourier transform infrared photoacoustic spectroscopy (DFTIR-PAS) method was developed to suppress the coherent external noise and spurious photoacoustic (PA) signals caused by strongly absorbing backgrounds. The infrared absorption spectra of acetylene (C<sub>2</sub>H<sub>2</sub>) and local air were used to verify the performance of the step-scan DFTIR-PAS method...
April 1, 2017: Optics Letters
https://www.readbyqxmd.com/read/28360387/genetic-structure-of-pseudococcus-microcirculus-hemiptera-pseudococcidae-populations-on-epiphytic-orchids-in-south-florida
#12
J A Zettler, K Adams, B Frederick, A Gutting, N Ingebretsen, A Ragsdale, A Schrey
In 2012, the orchid mealy bug Pseudococcus microcirculus was first detected in situ in North America's more diverse orchid region, the Big Cypress Basin (Collier Co FL). A follow-up survey showed that the mealy bug is more widespread and found on epiphytic orchids in two locations, in both the Fakahatchee Strand State Preserve (sites B and F) and the Florida Panther National Wildlife Refuge (sites M and C). There, we collected mealy bugs (n = 54) from 35 orchid individuals and screened allelic variation at seven microsatellite loci...
March 2017: Journal of Genetics
https://www.readbyqxmd.com/read/28342314/electrochemical-dna-sandwich-biosensor-based-on-enzyme-amplified-microrna-21-detection-and-gold-nanoparticles
#13
Jihane Mandli, Hasna Mohammadi, Aziz Amine
In this work, a novel electrochemical biosensor for miRNA-21 determination, involving a sandwich hybridization assay onto gold nanoparticles modified pencil graphite electrode (PGE) and enzyme signal amplification was reported. The thiol terminated capture probe 1 (SH-P1) was immobilized on the electrode through AuS interaction. In the presence of target miRNA-21, SH-P1 hybridized with the first part of the target, however, the second part hybridizes with a biotinylated probe P2 (B-P2). Then, a streptavidin-conjugated alkaline phosphatase was immobilized by a specific binding of avidin-B-P2...
March 14, 2017: Bioelectrochemistry
https://www.readbyqxmd.com/read/28330918/metabolic-rate-associates-with-but-does-not-generate-covariation-between-behaviours-in-western-stutter-trilling-crickets-gryllus-integer
#14
Indrikis A Krams, Petri T Niemelä, Giedrius Trakimas, Ronalds Krams, Gordon M Burghardt, Tatjana Krama, Aare Kuusik, Marika Mänd, Markus J Rantala, Raivo Mänd, Jukka Kekäläinen, Ilkka Sirkka, Severi Luoto, Raine Kortet
The causes and consequences of among-individual variation and covariation in behaviours are of substantial interest to behavioural ecology, but the proximate mechanisms underpinning this (co)variation are still unclear. Previous research suggests metabolic rate as a potential proximate mechanism to explain behavioural covariation. We measured the resting metabolic rate (RMR), boldness and exploration in western stutter-trilling crickets, Gryllus integer, selected differentially for short and fast development over two generations...
March 29, 2017: Proceedings. Biological Sciences
https://www.readbyqxmd.com/read/28274575/relation-of-myocardial-contrast-enhanced-t1-mapping-by-cardiac-magnetic-resonance-to-left-ventricular-reverse-remodeling-after-cardiac-resynchronization-therapy-in-patients-with-nonischemic-cardiomyopathy
#15
Ulas Höke, Mand J H Khidir, Rob J van der Geest, Martin J Schalij, Jeroen J Bax, Victoria Delgado, Nina Ajmone Marsan
Myocardial scar is known to be associated with limited left ventricular (LV) reverse remodeling after cardiac resynchronization therapy (CRT). However, the impact of diffuse myocardial interstitial fibrosis, as assessed with myocardial T1 mapping cardiac magnetic resonance (CMR), has not been studied in patients with CRT. Therefore, we aimed at evaluating the association between diffuse myocardial interstitial fibrosis, in nonischemic cardiomyopathy patients, and LV reverse remodeling after CRT. A total of 40 patients (61 ± 11 years) with nonischemic cardiomyopathy who underwent CMR before CRT implantation were included...
May 1, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28249491/new-products
#16
Andreas Mandelis
In order to supplement manufacturers' information, this Department will welcome the submission by our readers of brief communications reporting measurements on the physical properties of materials which supersede earlier data or suggest new research applications.
February 2017: Review of Scientific Instruments
https://www.readbyqxmd.com/read/28231486/coded-excitation-waveform-engineering-for-high-frame-rate-synthetic-aperture-ultrasound-imaging
#17
Bahman Lashkari, Kaicheng Zhang, Edem Dovlo, Andreas Mandelis
Coded excitation was initially introduced to ultrasound imaging as a method for enhancing the signal-to-noise ratio (SNR). However, this method was also shown to be helpful in conjunction with synthetic aperture transmission for high frame rate imaging. Recently, we introduced two families of mismatched coded excitations based on frequency modulation chirp and combined frequency modulation and Golay code. Here "mismatched" indicates that the coded excitations generate very small cross-correlations among themselves while each has a very strong autocorrelation...
May 2017: Ultrasonics
https://www.readbyqxmd.com/read/28217309/qrs-duration-versus-morphology-and-survival-after-cardiac-resynchronization-therapy
#18
Mand J H Khidir, Victoria Delgado, Nina Ajmone Marsan, Martin J Schalij, Jeroen J Bax
AIMS: The prognostic implications of QRS duration and morphology in heart failure patients treated with cardiac resynchronization therapy (CRT) remains debated. The present evaluation investigated the association between QRS duration (<150 vs. ≥150 ms) and QRS morphology (left bundle brand block [LBBB] vs. non-LBBB) and long-term prognosis of a large cohort of unselected heart failure patients treated with CRT according to contemporary guidelines. METHODS AND RESULTS: Of 973 heart failure patients treated with CRT (mean age 66...
February 2017: ESC Heart Failure
https://www.readbyqxmd.com/read/28198891/photoacoustic-resonance-by-spatial-filtering-of-focused-ultrasound-transducers
#19
Dongyel Kang, Bahman Lashkari, Andreas Mandelis
The effect of a spherically focused ultrasound (US) transducer (TD) on photoacoustic (PA) measurements is analytically investigated using the concept of a virtual point detector. The derived analytical results indicate that the limited numerical aperture (NA) of the PA detector takes on the role of spatial filtering of the induced PA waves, which leads to the occurrence of a peak frequency in the PA spectrum. The mathematical description of this phenomenon is similar to the result of resonance peaks of light propagation in dielectrics...
February 15, 2017: Optics Letters
https://www.readbyqxmd.com/read/28179138/the-interdigitating-loop-of-the-enolase-superfamily-as-a-specificity-binding-determinant-or-flying-buttress
#20
REVIEW
Stephen L Bearne
BACKGROUND: Enzymes of the enolase superfamily (ENS) are mechanistically diverse, yet share a common partial reaction (abstraction of the α-proton from a carboxylate substrate). While the catalytic machinery responsible for the deprotonation reaction has been conserved, divergent evolution has led to numerous ENS members that catalyze different overall reactions. This rich functional diversity has made the ENS an excellent model system for developing the approaches necessary to validate enzyme function...
February 4, 2017: Biochimica et Biophysica Acta
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