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https://www.readbyqxmd.com/read/28544959/effect-of-different-mineralization-processes-on-in-vitro-and-in-vivo-bone-regeneration-and-osteoblast-macrophage-cross-talk-in-co-culture-system-using-dual-growth-factor-mediated-non-mulberry-silk-fibroin-grafted-poly-%C3%B0-caprolactone-nanofibrous-scaffold
#1
Promita Bhattacharjee, Tapas K Maiti, Debasis Bhattacharya, Samit Kumar Nandi
This study evaluates mineralized nanofibrous polymeric scaffolds at supporting in vitro osteogenic differentiation of human mesenchymal stem cells (hMSCs) and in vivo bone tissue regeneration. Co-electrospin, alternative soaking, and electrodeposition were used to introduce hydroxyapatite in non-mulberry silk fibroin grafted poly(Є-caprolactone) nanofibrous scaffolds. Bone morphogenic protein-2 and Transforming growth factor-β, at a potency ratio of 1:1, are covalently coupled onto the scaffolds. hMSCs proliferation and interactions are studied through MTT and Alamar blue assay and scanning electron and confocal microscopy...
May 16, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/28541196/3d-object-proposals-using-stereo-imagery-for-accurate-object-class-detection
#2
Xiaozhi Chen, Kaustav Kundu, Yukun Zhu, Huimin Ma, Sanja Fidler, Raquel Urtasun
The goal of this paper is to perform 3D object detection in the context of autonomous driving. Our method aims at generating a set of high-quality 3D object proposals by exploiting stereo imagery. We formulate the problem as minimizing an energy function that encodes object size priors, placement of objects on the ground plane as well as several depth informed features that reason about free space, point cloud densities and distance to the ground. We then exploit a CNN on top of these proposals to perform object detection...
May 19, 2017: IEEE Transactions on Pattern Analysis and Machine Intelligence
https://www.readbyqxmd.com/read/28538517/greater-corticostriatal-activation-associated-with-facial-motor-imagery-compared-with-motor-execution-a-functional-mri-study
#3
Meena M Makary, Seulgi Eun, Kyungmo Park
Motor imagery (MI) relies on conscious mental simulation of a motor act without overt motor output and can promote motor skill acquisition and facilitate rehabilitation for patients with stroke or neurological conditions. Although a plethora of neuroimaging studies have investigated the neural network of MI regarding different body parts, exploration of the neural correlates to facial MI remains warranted. Here, we used functional MRI with a large cohort of 41 participants who underwent motor execution (ME) and MI runs of mouth-stretching tasks...
May 19, 2017: Neuroreport
https://www.readbyqxmd.com/read/28537339/older-adults-with-fear-of-falling-show-deficits-in-motor-imagery-of-gait
#4
R Sakurai, Y Fujiwara, M Yasunaga, H Suzuki, N Sakuma, K Imanaka, M Montero-Odasso
OBJECTIVE: Understanding of the underlying mechanisms of Fear of Falling (FoF) could help to expand potential treatments. Given the nature of motor performance, the decline in the planning stage of motor execution may be associated with an expression of FoF. The aim of this study was to assess the planning/prediction accuracy in motor execution in people with FoF using gait-related motor imagery (MI). DESIGN: Cross-sectional case/control study. SETTING: Three health centers in Japan...
2017: Journal of Nutrition, Health & Aging
https://www.readbyqxmd.com/read/28536915/erratum-to-assessment-of-spatial-distribution-of-soil-heavy-metals-using-ann-ga-mslr-and-satellite-imagery
#5
Arman Naderi, Mohammad Amir Delavar, Babak Kaboudin, Mohammad Sadegh Askari
No abstract text is available yet for this article.
June 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/28536914/inter-comparison-of-remote-sensing-sensing-based-shoreline-mapping-techniques-at-different-coastal-stretches-of-india
#6
Swathy Sunder, Raaj Ramsankaran, Balaji Ramakrishnan
Many techniques are available for detection of shorelines from multispectral satellite imagery, but the choice of a certain technique for a particular study area can be tough. Hence, for the first time in literature, an inter-comparison of the most widely used shoreline mapping techniques such as Normalized Difference Water Index (NDWI), Modified NDWI (MNDWI), Improved Band Ratio (IBR) Method, and Automatic Water Extraction Index (AWEI) has been done along four different coastal stretches of India using multitemporal Landsat data...
June 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/28535599/monitoring-spatiotemporal-variations-in-nutrients-in-a-large-drinking-water-reservoir-and-their-relationships-with-hydrological-and-meteorological-conditions-based-on-landsat-8-imagery
#7
Yuan Li, Yunlin Zhang, Kun Shi, Guangwei Zhu, Yongqiang Zhou, Yibo Zhang, Yulong Guo
Nutrient enrichment is a major cause of water eutrophication, and variations in nutrient enrichment are influenced by environmental changes and anthropogenic activities. Accurately estimating nutrient concentrations and understanding their relationships with environmental factors are vital to develop nutrient management strategies to mitigate eutrophication. Landsat 8 Operational Land Imager (OLI) data is used to estimate nutrient concentrations and analyze their responses to hydrological and meteorological conditions...
May 19, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28535411/the-effectiveness-of-the-computerized-visual-perceptual-training-program-on-individuals-with-down-syndrome-an-fmri-study
#8
Yi-Ting Wan, Ching-Sui Chiang, Sharon Chia-Ju Chen, Yee-Pay Wuang
This study investigated the effectiveness of the Computerized Visual Perception Training (CVPT) program on individuals with Down syndrome (DS, mean age=13.17±4.35years, age range: 6.54-20.75 years). All participants have mild intellectual disability classified by the standard IQ measures (mean=61.2, ranges from 55 to 68). Both the Test of Visual Perceptual Skill- Third Edition (TVPS-3) and functional magnetic resonance imaging (fMRI) were used to evaluate the training outcomes. Results of TVPS-3 and fMRI showed that DS group had visual perceptual deficits and abnormal neural networks related to visual organization...
May 20, 2017: Research in Developmental Disabilities
https://www.readbyqxmd.com/read/28533613/the-effects-of-tool-holding-on-body-schema-during-motor-imagery-a-near-infrared-spectroscopy-study
#9
Tsubasa Oikawa, Daisuke Hirano, Takamichi Taniguchi, Hitoshi Maruyama
[Purpose] The purpose of this study is to assess the influence of tool holding on brain activities during motor imagery in two tasks: imagining the movement of writing the alphabet while holding a pen and without holding the pen. [Subjects and Methods] Eleven healthy right-handed adults performed two tasks, holding a pen and not holding the pen during imagining the movement of writing the alphabet using a pen. Regions of targets were Brodmann areas 6 which were a motor-related region, 44/45 and 39/40 which taken on the role of forming the body schema...
April 2017: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/28533607/a-neurocognitive-approach-for-recovering-upper-extremity-movement-following-subacute-stroke-a-randomized-controlled-pilot-study
#10
Laia Sallés, Patricia Martín-Casas, Xavier Gironès, María José Durà, José Vicente Lafuente, Carlo Perfetti
[Purpose] This study aims to describe a protocol based on neurocognitive therapeutic exercises and determine its feasibility and usefulness for upper extremity functionality when compared with a conventional protocol. [Subjects and Methods] Eight subacute stroke patients were randomly assigned to a conventional (control group) or neurocognitive (experimental group) treatment protocol. Both lasted 30 minutes, 3 times a week for 10 weeks and assessments were blinded. Outcome measures included: Motor Evaluation Scale for Upper Extremity in Stroke Patients, Motricity Index, Revised Nottingham Sensory Assessment and Kinesthetic and Visual Imagery Questionnaire...
April 2017: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/28532363/early-visual-cortex-as-a-multiscale-cognitive-blackboard
#11
Pieter R Roelfsema, Floris P de Lange
Neurons in early visual cortical areas not only represent incoming visual information but are also engaged by higher level cognitive processes, including attention, working memory, imagery, and decision-making. Are these cognitive effects an epiphenomenon or are they functionally relevant for these mental operations? We review evidence supporting the hypothesis that the modulation of activity in early visual areas has a causal role in cognition. The modulatory influences allow the early visual cortex to act as a multiscale cognitive blackboard for read and write operations by higher visual areas, which can thereby efficiently exchange information...
October 14, 2016: Annual Review of Vision Science
https://www.readbyqxmd.com/read/28529762/enhanced-inter-subject-brain-computer-interface-with-associative-sensorimotor-oscillations
#12
Simanto Saha, Khawza I Ahmed, Raqibul Mostafa, Ahsan H Khandoker, Leontios Hadjileontiadis
Electroencephalography (EEG) captures electrophysiological signatures of cortical events from the scalp with high-dimensional electrode montages. Usually, excessive sources produce outliers and potentially affect the actual event related sources. Besides, EEG manifests inherent inter-subject variability of the brain dynamics, at the resting state and/or under the performance of task(s), caused probably due to the instantaneous fluctuation of psychophysiological states. A wavelet coherence (WC) analysis for optimally selecting associative inter-subject channels is proposed here and is being used to boost performances of motor imagery (MI)-based inter-subject brain computer interface (BCI)...
February 2017: Healthcare Technology Letters
https://www.readbyqxmd.com/read/28529473/complete-locked-in-and-locked-in-patients-command-following-assessment-and-communication-with-vibro-tactile-p300-and-motor-imagery-brain-computer-interface-tools
#13
Christoph Guger, Rossella Spataro, Brendan Z Allison, Alexander Heilinger, Rupert Ortner, Woosang Cho, Vincenzo La Bella
Many patients with locked-in syndrome (LIS) or complete locked-in syndrome (CLIS) also need brain-computer interface (BCI) platforms that do not rely on visual stimuli and are easy to use. We investigate command following and communication functions of mindBEAGLE with 9 LIS, 3 CLIS patients and three healthy controls. This tests were done with vibro-tactile stimulation with 2 or 3 stimulators (VT2 and VT3 mode) and with motor imagery (MI) paradigms. In VT2 the stimulators are fixed on the left and right wrist and the participant has the task to count the stimuli on the target hand in order to elicit a P300 response...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28527300/feasibility-of-a-relaxation-guided-imagery-intervention-to-reduce-maternal-stress-in-the-nicu
#14
Lois C Howland, Nancy Jallo, Cynthia D Connelly, Rita H Pickler
OBJECTIVE: To test the feasibility of a relaxation guided imagery (RGI) intervention for mothers of hospitalized preterm infants and to explore the biobehavioral effects of RGI on their distress, responsiveness, and physiological stress. DESIGN: Single sample, pretest-posttest design. SETTING: A large Level III NICU in Southern California. PARTICIPANTS: Twenty mothers of hospitalized preterm infants (24-32 weeks gestational age)...
May 17, 2017: Journal of Obstetric, Gynecologic, and Neonatal Nursing: JOGNN
https://www.readbyqxmd.com/read/28526931/reduced-amygdala-reactivity-and-impaired-working-memory-during-dissociation-in-borderline-personality-disorder
#15
Annegret Krause-Utz, Dorina Winter, Friederike Schriner, Chui-De Chiu, Stefanie Lis, Philip Spinhoven, Martin Bohus, Christian Schmahl, Bernet M Elzinga
Affective hyper-reactivity and impaired cognitive control of emotional material are core features of borderline personality disorder (BPD). A high percentage of individuals with BPD experience stress-related dissociation, including emotional numbing and memory disruptions. So far little is known about how dissociation influences the neural processing of emotional material in the context of a working memory task in BPD. We aimed to investigate whole-brain activity and amygdala functional connectivity (FC) during an Emotional Working Memory Task (EWMT) after dissociation induction in un-medicated BPD patients compared to healthy controls (HC)...
May 19, 2017: European Archives of Psychiatry and Clinical Neuroscience
https://www.readbyqxmd.com/read/28526621/electrophysiological-signatures-of-phonological-and-semantic-maintenance-in-sentence-repetition
#16
Jed A Meltzer, Aneta Kielar, Lilia Panamsky, Kira A Links, Tiffany Deschamps, Rosie C Leigh
Verbal short-term memory comprises resources for phonological rehearsal, which have been characterized anatomically, and for maintenance of semantic information, which are less understood. Sentence repetition tasks tap both processes interactively. To distinguish brain activity involved in phonological vs. semantic maintenance, we recorded magnetoencephalography during a sentence repetition task, incorporating three manipulations emphasizing one mechanism over the other. Participants heard sentences or word lists and attempted to repeat them verbatim after a 5-second delay...
May 16, 2017: NeuroImage
https://www.readbyqxmd.com/read/28526330/going-social-success-in-online-recruitment-of-men-who-have-sex-with-men-for-prevention-hiv-vaccine-research
#17
Lindsey Buckingham, Julie Becher, Chelsea D Voytek, Danielle Fiore, Debora Dunbar, Annet Davis-Vogel, David S Metzger, Ian Frank
OBJECTIVE: To compare the use of four different social media sites to recruit men who have sex with men (MSM) and transgender women to a phase 2b HIV prevention vaccine trial, HVTN 505. DESIGN: Retrospective, observational study. METHODS: The University of Pennsylvania HIV Vaccine Trials Unit (Penn HVTU) employed street outreach and online recruitment methods to recruit participants for HVTN 505 using a combination of national recruitment images/messages with Philadelphia-specific language and imagery...
May 16, 2017: Vaccine
https://www.readbyqxmd.com/read/28525857/industrial-air-emissions-and-proximity-to-major-industrial-emitters-are-associated-with-anti-citrullinated-protein-antibodies
#18
Sasha Bernatsky, Audrey Smargiassi, Lawrence Joseph, Phillip Awadalla, Ines Colmegna, Marie Hudson, Marvin J Fritzler
OBJECTIVE: To determine the association of anti-citrullinated antibodies (ACPA) with the ambient air pollutants fine particulate matter (PM2.5) and sulfur dioxide (SO2). METHODS: The CARTaGENE first-wave cohort includes 20,000 general population subjects from Quebec (Canada). On a sample of unselected 1586 subjects, we determined serum, ACPA and performed multivariable logistic regression, for the outcome of positive ACPA, assessing for independent effects of our air pollution variables, adjusting for age, sex, smoking, and French Canadian origin...
May 16, 2017: Environmental Research
https://www.readbyqxmd.com/read/28522346/seeing-in-the-dark-phosphene-thresholds-with-eyes-open-versus-closed-in-the-absence-of-visual-inputs
#19
T A de Graaf, F Duecker, Y Stankevich, S Ten Oever, A T Sack
BACKGROUND: Voluntarily opening or closing our eyes results in fundamentally different input patterns and expectancies. Yet it remains unclear how our brains and visual systems adapt to these ocular states. OBJECTIVE/HYPOTHESIS: We here used transcranial magnetic stimulation (TMS) to probe the excitability of the human visual system with eyes open or closed, in the complete absence of visual inputs. METHODS: Combining Bayesian staircase procedures with computer control of TMS pulse intensity allowed interleaved determination of phosphene thresholds (PT) in both conditions...
May 3, 2017: Brain Stimulation
https://www.readbyqxmd.com/read/28521452/assessment-of-high-sensitivity-c-reactive-protein-tests-for-the-diagnosis-of-hepatocellular-carcinoma-in-patients-with-hepatitis-b-associated-liver-cirrhosis
#20
Li-Na Ma, Xiao-Yan Liu, Zhen-Hui Lu, Li-Gang Wu, Yuan-Yuan Tang, Xia Luo, Yan-Chao Hu, Ting-Ting Yan, Qi Wang, Xiang-Chun Ding, Yan Xie
Hepatocellular carcinoma (HCC) is a common malignant tumor worldwide, with high morbidity and mortality. Chronic infection with hepatitis B virus (HBV) is a major risk factor for the development of hepatocellular carcinoma and the majority (~80%) of hepatocellular carcinoma patients in China exhibit co-morbidity with HBV-associated liver cirrhosis. The goal of reliable early diagnostic and prognostic techniques for HBV-associated HCC remains unrealized. The aim of the present study was to explore the efficacy of serum high-sensitivity C-reactive protein (hs-CRP) tests in the early diagnosis of HCC in patients with HBV-associated liver cirrhosis...
May 2017: Oncology Letters
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