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Bimodality

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https://www.readbyqxmd.com/read/28527953/audiovisual-speech-integration-in-the-superior-temporal-region-is-dysfunctional-in-dyslexia
#1
REVIEW
Zheng Ye, Jascha Rüsseler, Ivonne Gerth, Thomas F Münte
Dyslexia is an impairment of reading and spelling that affects both children and adults even after many years of schooling. Dyslexic readers have deficits in the integration of auditory and visual inputs but the neural mechanisms of the deficits are still unclear. This fMRI study examined the neural processing of auditorily presented German numbers 0-9 and videos of lip movements of a German native speaker voicing numbers 0-9 in unimodal (auditory or visual) and bimodal (always congruent) conditions in dyslexic readers and their matched fluent readers...
May 17, 2017: Neuroscience
https://www.readbyqxmd.com/read/28527436/mechanisms-of-resonant-low-frequency-raman-scattering-from-metallic-nanoparticle-lamb-modes
#2
A Girard, J Lermé, H Gehan, J Margueritat, A Mermet
The low frequency Raman scattering from gold nanoparticle bimodal assemblies with controlled size distributions has been studied. Special care has been paid to determining the size dependence of the Raman intensity corresponding to the quadrupolar Lamb mode. Existing models based on a microscopic description of the scattering mechanism in small particles (bond polarizability, dipole induced dipole models) predict, for any Raman-active Lamb modes, an inelastic intensity scaling as the volume of the nanoparticle...
May 21, 2017: Journal of Chemical Physics
https://www.readbyqxmd.com/read/28526871/electro-tactile-stimulation-enhances-cochlear-implant-speech-recognition-in-noise
#3
Juan Huang, Benjamin Sheffield, Payton Lin, Fan-Gang Zeng
For cochlear implant users, combined electro-acoustic stimulation (EAS) significantly improves the performance. However, there are many more users who do not have any functional residual acoustic hearing at low frequencies. Because tactile sensation also operates in the same low frequencies (<500 Hz) as the acoustic hearing in EAS, we propose electro-tactile stimulation (ETS) to improve cochlear implant performance. In ten cochlear implant users, a tactile aid was applied to the index finger that converted voice fundamental frequency into tactile vibrations...
May 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28522744/fdg-pet-response-after-induction-chemotherapy-can-predict-who-will-benefit-from-subsequent-esophagectomy-after-chemoradiotherapy-for-esophageal-adenocarcinoma
#4
Mian Xi, Zhongxing Liao, Wayne L Hofstetter, Ritsuko Komaki, Linus Ho, Steven H Lin
This study aimed to determine whether (18)F-fluorodeoxyglucose positron emission tomography (FDG-PET) response after induction chemotherapy before concurrent chemoradiotherapy can identify patients with esophageal adenocarcinoma who may benefit from subsequent esophagectomy. Methods: We identified and analyzed 220 patients with esophageal adenocarcinoma who had received induction chemotherapy before chemoradiotherapy, with or without surgery, with curative intent; all underwent FDG-PET scanning before and after induction chemotherapy...
May 18, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/28513829/an-analysis-of-procedures-that-affect-response-variability
#5
Joseph D Dracobly, Claudia L Dozier, Adam M Briggs, Jessica F Juanico
Response variability is sensitive to antecedent and consequent manipulations. Researchers have investigated inducement, direct production through reinforcement, and stimulus control of response variability. Recently, researchers have shown that lag reinforcement schedules reliably increase variability but may also produce higher-order stereotypy. There has been limited investigation of appropriate variability levels and alternation between repetition and variation. In a three-part study, we evaluated levels of variability across a group of children, the effects of various procedures on producing response variability and novelty, and the use of schedule-correlated stimuli for producing rapid alternation between repetition and variation...
May 17, 2017: Journal of Applied Behavior Analysis
https://www.readbyqxmd.com/read/28513102/how-bilingualism-protects-the-brain-from-aging-insights-from-bimodal-bilinguals
#6
Le Li, Jubin Abutalebi, Karen Emmorey, Gaolang Gong, Xin Yan, Xiaoxia Feng, Lijuan Zou, Guosheng Ding
Bilingual experience can delay cognitive decline during aging. A general hypothesis is that the executive control system of bilinguals faces an increased load due to controlling two languages, and this increased load results in a more "tuned brain" that eventually creates a neural reserve. Here we explored whether such a neuroprotective effect is independent of language modality, i.e., not limited to bilinguals who speak two languages but also occurs for bilinguals who use a spoken and a signed language. We addressed this issue by comparing bimodal bilinguals to monolinguals in order to detect age-induced structural brain changes and to determine whether we can detect the same beneficial effects on brain structure, in terms of preservation of gray matter volume (GMV), for bimodal bilinguals as has been reported for unimodal bilinguals...
May 17, 2017: Human Brain Mapping
https://www.readbyqxmd.com/read/28511174/noninvasive-prenatal-detection-of-trisomy-21-by-targeted-semiconductor-sequencing-a-technical-feasibility-study
#7
Yanwei Xi, Aryan Arbabi, Amy J M McNaughton, Alison Hamilton, Danna Hull, Helene Perras, Tillie Chiu, Shawna Morrison, Claire Goldsmith, Emilie Creede, Gregory J Anger, Christina Honeywell, Mireille Cloutier, Natasha Macchio, Courtney Kiss, Xudong Liu, Susan Crocker, Gregory A Davies, Michael Brudno, Christine M Armour
OBJECTIVE: To develop an alternate noninvasive prenatal testing method for the assessment of trisomy 21 (T21) using a targeted semiconductor sequencing approach. METHODS: A customized AmpliSeq panel was designed with 1,067 primer pairs targeting specific regions on chromosomes 21, 18, 13, and others. A total of 235 samples, including 30 affected with T21, were sequenced with an Ion Torrent Proton sequencer, and a method was developed for assessing the probability of fetal aneuploidy via derivation of a risk score...
May 17, 2017: Fetal Diagnosis and Therapy
https://www.readbyqxmd.com/read/28505857/ising-spin-glasses-in-two-dimensions-universality-and-nonuniversality
#8
P H Lundow, I A Campbell
Following numerous earlier studies, extensive simulations and analyses were made on the continuous interaction distribution Gaussian model and the discrete bimodal interaction distribution Ising spin glass (ISG) models in two dimensions [Lundow and Campbell, Phys. Rev. E 93, 022119 (2016)1539-375510.1103/PhysRevE.93.022119]. Here we further analyze the bimodal and Gaussian data together with data on two other continuous interaction distribution two-dimensional ISG models, the uniform and the Laplacian models, and three other discrete interaction distribution models, a diluted bimodal model, an "antidiluted" model, and a more exotic symmetric Poisson model...
April 2017: Physical Review. E
https://www.readbyqxmd.com/read/28504444/diversity-ecology-and-seasonality-of-sand-flies-diptera-psychodidae-of-the-jenin-district-palestinian-territories
#9
Samir S Sawalha, Asad Ramlawi, Ramzi M Sansur, Ibrahim Mohammad Salem, Zuhair S Amr
The diversity, ecology, and seasonality for sand flies from two localities in Jenin District, the Palestinian Territories, were studied. A total of 12,579 sand flies (5,420 Phlebotomus and 7,159 Sergentomyia) were collected during the study period. The genera Phlebotomus and Sergentomyia are represented by 13 and nine species and subspecies, respectively. Species account was given for all collected species. CDC light traps yielded 7,649 (60.8%) of the total captured sand flies, while sticky traps and aspirators contributed to 36...
June 2017: Journal of Vector Ecology: Journal of the Society for Vector Ecology
https://www.readbyqxmd.com/read/28502409/field-evaluation-of-a-wearable-multimodal-soldier-navigation-system
#10
Iina Aaltonen, Jari Laarni
Challenging environments pose difficulties for terrain navigation, and therefore wearable and multimodal navigation systems have been proposed to overcome these difficulties. Few such navigation systems, however, have been evaluated in field conditions. We evaluated how a multimodal system can aid in navigating in a forest in the context of a military exercise. The system included a head-mounted display, headphones, and a tactile vibrating vest. Visual, auditory, and tactile modalities were tested and evaluated using unimodal, bimodal, and trimodal conditions...
September 2017: Applied Ergonomics
https://www.readbyqxmd.com/read/28500954/finger-forces-in-fastball-baseball-pitching
#11
Hiroshi Kinoshita, Satoshi Obata, Daiki Nasu, Koji Kadota, Tomoyuki Matsuo, Glenn S Fleisig
Forces imparted by the fingers onto a baseball are the final, critical aspects for pitching, however these forces have not been quantified previously as no biomechanical technology was available. In this study, an instrumented baseball was developed for direct measurement of ball reaction force by individual fingers and used to provide fundamental information on the forces during a fastball pitch. A tri-axial force transducer with a cable having an easily-detachable connector were installed in an official baseball...
May 10, 2017: Human Movement Science
https://www.readbyqxmd.com/read/28500706/common-structural-elements-in-the-chromophore-binding-pocket-of-the-pfr-state-of-bathy-phytochromes
#12
Francisco Velázquez Escobar, David Buhrke, Norbert Michael, Luisa Sauthof, Svea Wilkening, Neslihan N Tavraz, Johannes Salewski, Nicole Frankenberg-Dinkel, Maria Andrea Mroginski, Patrick Scheerer, Thomas Friedrich, Friedrich Siebert, Peter Hildebrandt
Phytochromes are bimodal photoreceptors which, upon light absorption by the tetrapyrrole chromophore, can be converted between a red-absorbing state (Pr) and far-red-absorbing state (Pfr). In bacterial phytochromes, either Pr or Pfr are the thermally stable states, thereby constituting the classes of prototypical and bathy phytochromes, respectively. In this work, we have employed vibrational spectroscopies to elucidate the origin of the thermal stability of the Pfr states in bathy phytochromes. Here, we present the first detailed spectroscopic analysis of RpBphP6 (Rhodopseudomas palustris), which together with results obtained for Agp2 (Agrobacterium tumefaciens) and PaBphP (Pseudomonas aeruginosa) allows identifying common structural properties of the Pfr state of bathy phytochromes, which are (1) a homogenous chromophore structure, (2) the protonated ring C propionic side chain of the chromophore and (3) a retarded H/D exchange at the ring D nitrogen...
May 2017: Photochemistry and Photobiology
https://www.readbyqxmd.com/read/28500347/novel-fabrication-and-enhanced-photocatalytic-mb-degradation-of-hierarchical-porous-monoliths-of-moo3-nanoplates
#13
Yang Liu, Peizhong Feng, Zhang Wang, Xinyang Jiao, Farid Akhtar
Porous monoliths of MoO3 nanoplates were synthesized from ammonium molybdate (AHM) by freeze-casting and subsequent thermal treatment from 300 to 600 °C. Pure orthorhombic MoO3 phase was obtained at thermal treatment temperature of 400 °C and above. MoO3 monoliths thermally treated at 400 °C displayed bimodal pore structure, including large pore channels replicating the ice crystals and small pores from MoO3 sheets stacking. Transmission electron microscopy (TEM) images revealed that the average thicknesses of MoO3 sheet were 50 and 300 nm in porous monoliths thermally treated at 400 °C...
May 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28499924/hypercholesterolemia-causes-circadian-dysfunction-a-potential-risk-factor-for-cardiovascular-disease
#14
Makoto Akashi, Ritsuko Matsumura, Takahiro Matsuo, Yuki Kubo, Hiroshi Komoda, Koichi Node
Hypercholesterolemia is a well-known risk factor for a wide range of diseases in developed countries. Here, we report that mice lacking functional LDLR (low density lipoprotein receptor), an animal model of human familial hypercholesterolemia, show circadian abnormalities. In free running behavioral experiments in constant darkness, these mice showed a prolonged active phase and distinctly bimodal rhythms. Even when the circadian rhythms were entrained by light and dark cycles, these mice showed a significant attenuation of behavioral onset intensity at the start of the dark period...
April 27, 2017: EBioMedicine
https://www.readbyqxmd.com/read/28499122/emd-dwt-based-transform-domain-feature-reduction-approach-for-quantitative-multi-class-classification-of-breast-lesions
#15
Sharmin R Ara, Syed Khairul Bashar, Farzana Alam, Md Kamrul Hasan
Using a large set of ultrasound features does not necessarily ensure improved quantitative classification of breast tumors; rather, it often degrades the performance of a classifier. In this paper, we propose an effective feature reduction approach in the transform domain for improved multi-class classification of breast tumors. Feature transformation methods, such as empirical mode decomposition (EMD) and discrete wavelet transform (DWT), followed by a filter- or wrapper-based subset selection scheme are used to extract a set of non-redundant and more potential transform domain features through decorrelation of an optimally ordered sequence of N ultrasonic bi-modal (i...
April 24, 2017: Ultrasonics
https://www.readbyqxmd.com/read/28493067/visuotactile-interaction-even-in-far-sagittal-space-in-older-adults-with-decreased-gait-and-balance-functions
#16
Wataru Teramoto, Keito Honda, Kento Furuta, Kaoru Sekiyama
Spatial proximity of signals from different sensory modalities is known to be a crucial factor in facilitating efficient multisensory processing in young adults. However, recent studies have demonstrated that older adults exhibit strong visuotactile interactions even when the visual stimuli were presented in a spatially disparate position from a tactile stimulus. This suggests that visuotactile peripersonal space differs between older and younger adults. In the present study, we investigated to what extent peripersonal space expands in the sagittal direction and whether this expansion was linked to the decline in sensorimotor functions in older adults...
May 10, 2017: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
https://www.readbyqxmd.com/read/28492313/size-composition-and-source-profiles-of-inhalable-bioaerosols-from-colorado-dairies
#17
Joshua Schaeffer, Stephen J Reynolds, Sheryl Magzamen, Amanda VanDyke, Neil Gottel, Jack Gilbert, Sarah Owens, Jarrad T Hampton-Marcell, John Volckens
Particulate matter emissions from agricultural livestock operations contain both chemical and biological constituents that represent a potential human health hazard. The size and composition of these dusts, however, have not been well described. We evaluated the full size distribution (from 0 to 100 μm in aerodynamic diameter) and chemical/biological composition of inhalable dusts inside several Colorado dairy parlors. Four aerodynamic size fractions (<3, 3-10, 10-30, and >30μm) were collected and analyzed using a combination of physiochemical techniques to understand the structure of bacterial communities and chemical constituents...
May 11, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28490670/leukotriene-b4-antagonism-ameliorates-experimental-lymphedema
#18
Wen Tian, Stanley G Rockson, Xinguo Jiang, Jeanna Kim, Adrian Begaye, Eric M Shuffle, Allen B Tu, Matthew Cribb, Zhanna Nepiyushchikh, Abdullah H Feroze, Roham T Zamanian, Gundeep S Dhillon, Norbert F Voelkel, Marc Peters-Golden, Jan Kitajewski, J Brandon Dixon, Mark R Nicolls
Acquired lymphedema is a cancer sequela and a global health problem currently lacking pharmacologic therapy. We have previously demonstrated that ketoprofen, an anti-inflammatory agent with dual 5-lipoxygenase and cyclooxygenase inhibitory properties, effectively reverses histopathology in experimental lymphedema. We show that the therapeutic benefit of ketoprofen is specifically attributable to its inhibition of the 5-lipoxygenase metabolite leukotriene B4 (LTB4). LTB4 antagonism reversed edema, improved lymphatic function, and restored lymphatic architecture in the murine tail model of lymphedema...
May 10, 2017: Science Translational Medicine
https://www.readbyqxmd.com/read/28490615/contemporary-natural-history-of-bicuspid-aortic-valve-disease-a-systematic-review
#19
REVIEW
Ahmad Masri, Lars G Svensson, Brian P Griffin, Milind Y Desai
We performed a systematic review of the current state of the literature regarding the natural history and outcomes of bicuspid aortic valve (BAV). PubMed and the reference lists of the included articles were searched for relevant studies reporting on longitudinal follow-up of BAV cohorts (mean follow-up ≥2 years). Studies limited to patients undergoing surgical interventions were excluded. 13 studies (11 502 patients with 2-16 years of follow-up) met the inclusion criteria. There was a bimodal age distribution (30-40 vs ≥50 years), with a 3:1 male to female ratio...
May 10, 2017: Heart: Official Journal of the British Cardiac Society
https://www.readbyqxmd.com/read/28490124/explaining-the-antioxidant-activity-of-some-common-non-phenolic-components-of-essential-oils
#20
Andrea Baschieri, Majlinda Daci Ajvazi, Judith Laure Folifack Tonfack, Luca Valgimigli, Riccardo Amorati
Limonene, linalool and citral are common non-phenolic terpenoid components of essential oils, with attributed controversial antioxidant properties. The kinetics of their antioxidant activity was investigated using the inhibited autoxidation of a standard model substrate. Results indicate that antioxidant behavior of limonene, linalool and citral occurs by co-oxidation with the substrate, due to very fast self-termination and cross-termination of the oxidative chain. Rate constants kp and 2kt, (M(-1)s(-1)) at 30°C were 4...
October 1, 2017: Food Chemistry
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