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https://www.readbyqxmd.com/read/29793128/convolutional-neural-networks-for-seizure-prediction-using-intracranial-and-scalp-electroencephalogram
#1
Nhan Duy Truong, Anh Duy Nguyen, Levin Kuhlmann, Mohammad Reza Bonyadi, Jiawei Yang, Samuel Ippolito, Omid Kavehei
Seizure prediction has attracted growing attention as one of the most challenging predictive data analysis efforts to improve the life of patients with drug-resistant epilepsy and tonic seizures. Many outstanding studies have reported great results in providing sensible indirect (warning systems) or direct (interactive neural stimulation) control over refractory seizures, some of which achieved high performance. However, to achieve high sensitivity and a low false prediction rate, many of these studies relied on handcraft feature extraction and/or tailored feature extraction, which is performed for each patient independently...
May 7, 2018: Neural Networks: the Official Journal of the International Neural Network Society
https://www.readbyqxmd.com/read/29792910/perception-of-children-with-visible-untreated-and-treated-caries
#2
Claudia Tschammler, David Zimmermann, Sarah Batschkus, Annette Wiegand, Kristian Folta-Schoofs
OBJECTIVES: This study aimed to analyse if children with untreated or treated caries (restorations/missing teeth) are perceived differently compared to children with healthy teeth and to explore possible differences in the perception by laypersons and dental experts. METHODS: Eye movements of female experts (n = 20) and laypersons (n = 18) were recorded by eye-tracking while paired images (neutral expression/teeth not visible; emotional expression/smiling, teeth visible) of children with healthy teeth, with visible untreated or treated caries (restorations/missing teeth as a consequence of caries treatment), each n = 13, were presented...
May 21, 2018: Journal of Dentistry
https://www.readbyqxmd.com/read/29792812/ultralow-damping-in-nanometer-thick-epitaxial-spinel-ferrite-thin-films
#3
Satoru Emori, Di Yi, Sam Crossley, Jacob J Wisser, Purnima P Balakrishnan, Behrouz Khodadadi, Padraic Shafer, Christoph Klewe, Alpha T N'Diaye, Brittany T Urwin, Krishnamurthy Mahalingam, Brandon Howe, Harold Y Hwang, Elke Arenholz, Yuri Suzuki
Pure spin currents, unaccompanied by dissipative charge flow, are essential for realizing energy-efficient nanomagnetic information and communications devices. Thin-film magnetic insulators have been identified as promising materials for spin-current technology, since they are thought to exhibit lower damping compared to their metallic counterparts. However, insulating behavior is not a sufficient requirement for low damping, as evidenced by the very limited options for low-damping insulators. Here, we demonstrate a new class of nanometer-thick ultralow-damping insulating thin films, based on design criteria that minimize orbital angular momentum and structural disorder...
May 24, 2018: Nano Letters
https://www.readbyqxmd.com/read/29792801/developing-a-novel-sulfoxide-containing-ms-cleavable-homobifunctional-cysteine-reactive-cross-linker-for-studying-protein-protein-interactions
#4
Craig B Gutierrez, Sarah A Block, Clinton Yu, Stephanie M Soohoo, Alexander S Huszagh, Scott D Rychnovsky, Lan Huang
Cross-linking mass spectrometry (XL-MS) has become an emerging technology for defining protein-protein interactions (PPIs) and elucidating architectures of large protein complexes. Up to now, the mostly widely used cross-linking reagents are targeting lysines. While such reagents have been successfully applied to map PPIs at the proteome-wide scale, comprehensive PPI profiling would require additional cross-linking chemistries. Cysteine is one of the most reactive amino acids and an attractive target for cross-linking owing to its unique role in protein structures...
May 24, 2018: Analytical Chemistry
https://www.readbyqxmd.com/read/29792774/when-the-good-looks-bad-an-experimental-exploration-of-the-repulsion-effect
#5
Mikhail S Spektor, David Kellen, Jared M Hotaling
When people are choosing among different options, context seems to play a vital role. For instance, adding a third option can increase the probability of choosing a similar dominating option. This attraction effect is one of the most widely studied phenomena in decision-making research. Its prevalence, however, has been challenged recently by the tainting hypothesis, according to which the inferior option contaminates the attribute space in which it is located, leading to a repulsion effect. In an attempt to test the tainting hypothesis and explore the conditions under which dominated options make dominating options look bad, we conducted four preregistered perceptual decision-making studies with a total of 301 participants...
May 1, 2018: Psychological Science
https://www.readbyqxmd.com/read/29792711/interfacial-emulsification-an-emerging-monodisperse-droplet-generation-method-for-microreactors-and-bioanalysis
#6
Shenglong Liao, Yi Tao, Wenbin Du, Yapei Wang
Generation of uniform droplets has been extensively investigated owing to its profound potentials both in scientific research and engineering applications. Although various methods have been put forward to expand this area, new innovations are still needed to improve the technical convenience and save instrumental cost. In this feature article, we highlight an Interfacial Emulsification technique that we developed in the past several years. This technique serves as a platform for preparing uniform droplets that are formed on the air-liquid interface of the continuous phase based on interfacial shearing...
May 24, 2018: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/29792693/a-titanium-oxo-cluster-model-study-of-synergistic-effect-of-co-coordinated-dye-ligands-on-photocurrent-responses
#7
Jin-Le Hou, Peng Huo, Zheng-Zhen Tang, Li-Na Cui, Qin-Yu Zhu, Jie Dai
The use of multiple sensitizers in dye sensitized solar cells has been attractive as a promising way to achieve highly efficient photovoltaic performance. However, except for the complementary absorption, synergistic effects among the dye components have not been well understood. Herein, using ferrocene-1-carboxylate (FcCO2 ) and catechol (Cat) as dye ligands, two titanium oxo clusters (TOCs), [Ti3 O(Oi Pr)6 (Cat)(FcCO2 )2 ] (1) and [Ti7 O4 (Oi Pr)8 (Cat)5 (FcCO2 )2 ] (2), were synthesized and structurally characterized...
May 24, 2018: Inorganic Chemistry
https://www.readbyqxmd.com/read/29792667/control-of-selectivity-in-palladium-ii-catalyzed-oxidative-transformations-of-allenes
#8
Bin Yang, Youai Qiu, Jan-E Bäckvall
Oxidation reactions play a central role in organic synthesis, and it is highly desirable that these reactions are mild and occur under catalytic conditions. In Nature, oxidation reactions occur under mild conditions via cascade processes, and furthermore, they often occur in an enantioselective manner with many of them involving molecular oxygen or hydrogen peroxide as the terminal oxidant. Inspired by the reactions in Nature, we have developed a number of Pd(II)-catalyzed cascade reactions under mild oxidative conditions...
May 24, 2018: Accounts of Chemical Research
https://www.readbyqxmd.com/read/29792541/interaction-of-low-frequency-external-electric-fields-and-pancreatic-%C3%AE-cell-a-mathematical-modeling-approach-to-identify-the-influence-of-excitation-parameters
#9
Sajjad Farashi, Pezhman Sasanpour, Hashem Rafii-Tabar
Purpose-Although the effect of electromagnetic fields on biological systems has attracted attraction in recent years, there has not been any conclusive result concerning the effects of interaction and the underlying mechanisms involved. Besides the complexity of biological systems, the parameters of the applied electromagnetic field have not been estimated in most of the experiments. Material and Method-In this study, we have used computational approach in order to find the excitation parameters of an external electric field which produces sensible effects in the function of insulin secretory machinery, whose failure triggers the diabetes disease...
May 24, 2018: International Journal of Radiation Biology
https://www.readbyqxmd.com/read/29792508/effects-of-tgf-%C3%AE-overexpression-via-raav-gene-transfer-on-the-early-repair-processes-in-an-osteochondral-defect-model-in-minipigs
#10
Magali Cucchiarini, Ann-Kathrin Asen, Lars Goebel, Jagadeesh K Venkatesan, Gertrud Schmitt, David Zurakowski, Michael D Menger, Matthias W Laschke, Henning Madry
BACKGROUND: Application of the chondrogenic transforming growth factor beta (TGF-β) is an attractive approach to enhance the intrinsic biological activities in damaged articular cartilage, especially when using direct gene transfer strategies based on the clinically relevant recombinant adeno-associated viral (rAAV) vectors. PURPOSE: To evaluate the ability of an rAAV-TGF-β construct to modulate the early repair processes in sites of focal cartilage injury in minipigs in vivo relative to control (reporter lacZ gene) vector treatment...
May 1, 2018: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29792423/trace-organic-pollutant-removal-by-vuv-uv-chlorine-process-feasibility-investigation-for-drinking-water-treatment-on-a-mini-fluidic-vuv-uv-photoreaction-system-and-a-pilot-photoreactor
#11
Mengkai Li, Mengyu Hao, Laxiang Yang, Hong Yao, James R Bolton, Ernest R Blatchley, Zhimin Qiang
The vacuum-ultraviolet/ultraviolet/chlorine (VUV/UV/chlorine) process, with a VUV/UV mercury lamp used as the light source, was found to be a highly efficient advanced oxidation process (AOP) in a previous study. Hence, its application feasibility for trace organic pollutant removal from drinking water becomes attractive. In this work, a bench-scale mini-fluidic VUV/UV photoreaction system was used to determine the degradation kinetics of sulfamethazine (SMN), a model sulfonamide antibiotic frequently detected with trace levels in aquatic environments...
May 24, 2018: Environmental Science & Technology
https://www.readbyqxmd.com/read/29792383/donor-variation-and-optimization-of-human-mesenchymal-stem-cells-chondrogenesis-in-hyaluronic-acid
#12
Minwook Kim, Isaac E Erickson, Alice H Huang, Sean T Garrity, Robert L Mauck, David R Steinberg
Mesenchymal stem cells (MSCs) are an attractive cell type for cartilage repair that can undergo chondrogenesis in a variety of three dimensional (3D) scaffolds. Hyaluronic acid (HA) hydrogels provide a biologically relevant interface for cell encapsulation. While our previous studies have shown that MSC-laden HA constructs can mature in vitro to match native mechanical properties using cells from animal sources, clinical application will depend on the successful translation of these findings to human cells...
May 24, 2018: Tissue Engineering. Part A
https://www.readbyqxmd.com/read/29792360/newer-human-inosine-5-monophosphate-dehydrogenase-2-himpdh2-inhibitors-as-potential-anticancer-agents
#13
Chetan P Shah, Prashant S Kharkar
Human inosine 5'-monophosphate dehydrogenase 2 (hIMPDH2), being an age-old target, has attracted attention recently for anticancer drug development. Mycophenolic acid (MPA), a well-known immunosuppressant drug, was used a lead structure to design and develop modestly potent and selective analogues. The steep structure-activity relationship (SAR) requirements of the lead molecule left little scope to synthesise newer analogues. Here, newer MPA amides were designed, synthesised and evaluated for hIMPDH2 inhibition and cellular efficacy in breast, prostate and glioblastoma cell lines...
December 2018: Journal of Enzyme Inhibition and Medicinal Chemistry
https://www.readbyqxmd.com/read/29792298/nanobody-antigen-conjugates-elicit-hpv-specific-anti-tumor-immune-responses
#14
Andrew W Woodham, Ross W Cheloha, Jingjing Ling, Mohammad Rashidian, Stephen C Kolifrath, Maia Mesyngier, Joao N Duarte, Justin M Bader, Joseph G Skeate, Diane M Da Silva, W Martin Kast, Hidde L Ploegh
High-risk human papillomavirus-associated cancers express viral oncoproteins (e.g., E6 and E7) that induce and maintain the malignant phenotype. The viral origin of these proteins makes them attractive targets for development of a therapeutic vaccine. Camelid-derived single-domain antibody fragments (nanobodies or VHHs) that recognize cell surface proteins on antigen-presenting cells (APCs) can serve as targeted delivery vehicles for antigens attached to them. Such VHHs were shown to induce CD4+ and CD8+ T-cell responses against model antigens conjugated to them via sortase, but antitumor responses had not yet been investigated...
May 23, 2018: Cancer Immunology Research
https://www.readbyqxmd.com/read/29792174/perspectives-on-clinical-use-of-bioimpedance-in-hemodialysis-focus-group-interviews-with-renal-care-professionals
#15
Jenny Stenberg, Catrin Henriksson, Magnus Lindberg, Hans Furuland
BACKGROUND: Inadequate volume control may be a main contributor to poor survival and high mortality in hemodialysis patients. Bioimpedance measurement has the potential to improve fluid management, but several dialysis centers lack an agreed fluid management policy, and the method has not yet been implemented. Our aim was to identify renal care professionals' perceived barriers and facilitators for use of bioimpedance in clinical practice. METHODS: Qualitative data were collected through four focus group interviews with 24 renal care professionals: dieticians, nephrologists and nurses, recruited voluntarily from a nation-wide selection of hemodialysis centers, having access to a bioimpedance-device...
May 23, 2018: BMC Nephrology
https://www.readbyqxmd.com/read/29791875/effects-of-potassium-application-on-potato-starch-physicochemical-properties
#16
Wei Zhang, Xinwei Liu, Qiaolan Wang, Haiqing Zhang, Mingfeng Li, Botao Song, Zhuqing Zhao
Potato starch serves as an excellent raw material or food additive in the food industry. With the advancement of the potato staple food strategy in China, improving the potato starch yield and quality has attracted more and more attention. Potassium is an essential nutrient for potato due to its direct effects on the yield and quality of potato tubers. Here, the effects of three different potassium levels on potato starch physicochemical properties were evaluated by field experiments. With increasing potassium application rates, the amylose content, phosphorus content and particle size decreased, thereby resulting in low gelatinization temperature, breakdown and setback viscosity, and high swelling power, relative crystallinity and transparency...
May 20, 2018: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29791862/hormone-dependent-breast-cancer-targeting-autophagy-and-pi3k-overcomes-exemestane-acquired-resistance
#17
Cristina Amaral, Tiago Vieira Augusto, Elisiário Tavares-da-Silva, Fernanda M F Roleira, Georgina Correia-da-Silva, Natércia Teixeira
The leading cause of cancer death in women around the world is breast cancer. The aromatase inhibitors (AIs) are considered a first-line treatment for estrogen receptor-positive (ER+ ) breast tumors, in postmenopausal women. Exemestane (Exe) is a powerful steroidal AI, however, despite its therapeutic success, Exe-acquired resistance may occur leading to tumor relapse. Our group previously demonstrated that autophagy acts as a pro-survival process in Exe-induced cell death of ER+ sensitive breast cancer cells...
May 20, 2018: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/29791779/a-recent-perspective-on-noncovalently-formed-polymeric-hydrogels
#18
REVIEW
Kun Xue, Sing Shy Liow, Anis Abdul Karim, Zibiao Li, Xian Jun Loh
Chemically crosslinked covalent hydrogels form a permanent and often strong network, and have been extensively used so far in drug delivery and tissue engineering. However, it is more difficult to induce dynamic and highly tunable changes in these hydrogels. Noncovalently formed hydrogels show promise as inherently reversible systems with an ability to change in response to dynamic environments, and have garnered strong interest recently. In this Personal Account, we elucidate a few key attractive properties of noncovalent hydrogels and describe recent developments in hydrogels crosslinked using various different noncovalent interactions...
May 23, 2018: Chemical Record: An Official Publication of the Chemical Society of Japan ... [et Al.]
https://www.readbyqxmd.com/read/29791627/emergency-care-units-and-dimensions-of-accessibility-to-health-care-for-the-elderly
#19
Giovana Aparecida de Souza Scolari, Leidyani Karina Rissardo, Vanessa Denardi Antoniassi Baldissera, Lígia Carreira
OBJECTIVE: to understand the conception of the elderly and their caregivers about the accessibility to health mediated by the service in Emergency Care Units. Methodo: a qualitative study conducted with 25 elderly patients and caregivers at Emergency Care Units in a city of Paraná, using Grounded Theory as a methodological reference. RESULTS: According to the participants, the resources available in these services guarantee medical consultation and provide access to exams and medicines...
2018: Revista Brasileira de Enfermagem
https://www.readbyqxmd.com/read/29791379/decision-feedback-equalizer-for-holographic-data-storage
#20
Kyuhwan Kim, Seung Hun Kim, Gyogwon Koo, Min Seok Seo, Sang Woo Kim
Holographic data storage (HDS) has attracted much attention as a next-generation storage medium. Because HDS suffers from two-dimensional (2D) inter-symbol interference (ISI), the partial-response maximum-likelihood (PRML) method has been studied to reduce 2D ISI. However, the PRML method has various drawbacks. To solve the problems, we propose a modified decision feedback equalizer (DFE) for HDS. To prevent the error propagation problem, which is a typical problem in DFEs, we also propose a reliability factor for HDS...
May 20, 2018: Applied Optics
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