bluuebunny/crossref_metadata_2025_split huggingface dataset:
A laser current control algorithm to avoid color distortion in laser projection displays
Authors: Guo Dabo , Wang Zhen , Li Longmin , Wu Junling , Yuan Guang 
Published: November 2019

AbstractLaser display technology has gradually become an important solution for large screen display. As a mature lighting technology in recent decades, phosphor has been widely used in the field of lighting and display. As a solid‐state light source, it has the advantages of low power consumption, environmental protection, rich color, and dynamic modulation. The luminescent efficiency of phosphors varies with temperature, which results in the nonlinearity of phosphor emission when the light source is dynamically modulated and the color temperature drift of the display image. In this paper, a control model of color temperature of laser TV display changing with laser current and temperature is established. The color temperature of laser TV is corrected by using current compensation control algorithm. The problem of color temperature drift caused by the change of phosphor conversion efficiency with t7emperature is solved. The color temperature deviation is 1118 K in the luminance range of the light source before compensation. By compensating and controlling the laser current, the ratio of blue light and phosphor is constant when the luminance changes, thus ensuring the color temperature constant when the luminance of the laser light source changes. The color temperature deviation is 50 K in the luminance range. By analyzing the different luminance of the display image, the stability of the color temperature is improved.
Improved sound quality by using the exciter speaker in OLED panel
Authors: Lee Sungtae , Park Kwanho , Park Sinkyun , Lee Joohong , Park Hyungwoo 
Published: November 2019

AbstractThe technology of using a vibrating OLED panel directly as a speaker was commercialized for the first time in 2017 in LG Display. This technology attaches a vibration actuator called an exciter to the back of the OLED panel, where it operates the OLED panel as a diaphragm of the speaker. With the development of the display maker, it developed from CRT to PDP, LCD, and LED. In the process, the image quality and appearance are leading the way. In previous studies, image and sound must be improved at the same time for easy information transmission. In addition, the concentration of watching is improved when the positions of the image and the sound match. The advantage of this technology is that it provides the viewer with direct sound coming from the panel, delivering clear audio when the sound and video appear in the same position. That gives the viewer a high intensity and maximizes the effect of information transfer. In this paper, we introduce research that generates sound directly from the exciter speaker to the panel. It also improves the sound quality of exciter speakers. Furthermore, it makes the left and right sounds independent from the sound using the exciter speakers.
miR‐922 regulates apoptosis, migration, and invasion by targeting SOCS1 in gastric cancer
Authors: Shayimu Paerhati , Wang Jing‐Bin , Liu Lin , Tuerdi Rousidan , Yu Cun‐Guo , Yusufu Aikeremu 
Published: November 2019

AbstractGastric cancer (GC) is the second leading cause of cancer‐related death worldwide. Studies have shown that miR‐922 facilitates the development of various diseases and tumors. However, the role of miR‐922 in GC and related molecular mechanisms are still unrevealed. Current study indicated that miR‐922 was overexpressed in GC tissues and cells. The survival rate of patients in high miR‐922 expression group is significantly lower than that in low miR‐922 expression group. In addition, overexpression of miR‐922 observably restrained the apoptosis of SGC7901 cells and promoted SGC7901 cell proliferation, migration, and invasion. TargetScan predicted that suppressors of cytokine signaling 1 (SOCS1) was a potential target of miR‐922. miR‐922 upregulation profoundly inhibited the expression of SOCS1. Furthermore, the mRNA level of SOCS1 in GC tissues was significantly lower than that in adjacent tissues, indicating that miR‐922 promoted the proliferation, invasion, and migration, and inhibited apoptosis of SGC7901 cells by downregulating the level of SOCS1. In conclusion, miR‐922 may have potential for diagnosis of GC.
Long‐term audiologic outcomes after cochlear implantation for single‐sided deafness
Authors: Sullivan Christopher Blake , Al‐Qurayshi Zaid , Zhu Vivian , Liu Andrew , Dunn Camille , Gantz Bruce J. , Hansen Marlan R. 
Published: November 2019

ObjectivesTo evaluate the long‐term audiometric outcomes, sound localization abilities, binaural benefits, and tinnitus assessment of subjects with cochlear implant (CI) after a diagnosis of unilateral severe‐to‐profound hearing loss.MethodThe study group consisted of 60 (mean age 52 years, range 19–84) subjects with profound hearing loss in one ear and normal to near‐normal hearing in the other ear who underwent CI. Data analysis included pre‐ and postoperative Consonant‐Nucleus‐Consonant (CNC) Word scores, AzBio Sentence scores, pure tone thresholds, sound localization, and Iowa Tinnitus Handicap Questionnaire scores.ResultsPreoperative average duration of deafness was 3.69 years (standard deviation 4.31), with an average follow‐up time of 37.9 months (range 1–87). CNC and AzBio scores significantly improved (both P < 0.001) postoperatively among the entire cohort, and there was much heterogeneity in outcomes with respect to deafness etiology subgroup analysis. Sound localization abilities tended to improve longitudinally in the entire cohort. Binaural benefits using an adaptive Hearing in Noise Test test showed a significant (P < 0.001) improvement with head shadow effect. Utilizing the Iowa Tinnitus Handicap Questionnaire, there was significant improvement in social, physical, and emotional well‐being (P = 0.011), along with hearing abilities (P = 0.001).ConclusionsThis case series is the largest cohort of CI SSD subjects to date and systematically analyzes their functional outcomes. Subjects have meaningful improvement in word understanding, and sound localization tends to gradually improve over time. Binaural benefit analysis showed significant improvement with head shadow effect, which likely provides ease of listening.Level of Evidence4 Laryngoscope, 130:1805–1811, 2020
Microplastic concentrations in two Oregon bivalve species: Spatial, temporal, and species variability
Authors: Baechler Britta R. , Granek Elise F. , Hunter Matthew V. , Conn Kathleen E. 
Published: November 2019

AbstractMicroplastics are an ecological stressor with implications for ecosystem and human health when present in seafood. We quantified microplastic types, concentrations, anatomical burdens, geographic distribution, and temporal differences in Pacific oysters (Crassostrea gigas) and Pacific razor clams (Siliqua patula) from 15 Oregon coast, U.S.A. sites. Microplastics were present in organisms from all sites. On average, whole oysters and razor clams contained 10.95 ± 0.77 and 8.84 ± 0.45 microplastic pieces per individual, or 0.35 ± 0.04 pieces g−1 tissue and 0.16 ± 0.02 pieces g−1 tissue, respectively. Contamination was quantified but not subtracted. Over 99% of microplastics were fibers. Material type was determined using Fourier‐transform infrared spectroscopy. Spring samples contained more microplastics than summer samples in oysters but not razor clams. Our study is the first to document microplastics in Pacific razor clams and provides important coast‐wide data to compare microplastic burden across species, seasons, and sites.
Efficacy of a New Therapeutic Option for Vulvar Intraepithelial Neoplasia: Superficial Shaving Combined With Photodynamic Therapy
Authors: Zhao Shuang , Liu Dihui , Shi Wei , Kang Yanan , Li Qingling , Liu Queping , Chen Mingliang , Li Fangfang , Su Juan , Zhang Yu , Wu Lisha 
Published: November 2019

Background and ObjectiveVulvar intraepithelial neoplasia (VIN), a precancerous lesion, is difficult to treat by excision or ablation due to high recurrence rates. Photodynamic therapy (PDT) is a minimally invasive therapeutic procedure and is now widely used to treat non‐melanoma skin diseases. However, the clinical response rates of VIN to single PDT are unstable. The reason may be the limited light penetration into deep tissues. Objective: To retrospectively evaluate the clinical response and recurrence of VIN after combined treatment with superficial shaving and PDT.Study Design/Materials and MethodsSeventeen patients with VIN were enrolled. All patients had multifocal high‐grade VIN that had failed to respond to various therapies. Superficial shaving was performed only once and prior to the first 5‐aminolaevulinic acid (5‐ALA)‐PDT cycle. Generally, the procedure of 5‐ALA PDT for each patient was performed in three sessions. Clinical response, recurrence, cosmetic outcomes, adverse events, patient satisfaction, quality of life, and mental health were assessed. The expression of p16 and Ki‐67 in pre‐ and post‐treatment tissue was detected.ResultsA clinical response of 94% was observed in 17 patients, who were administered combination therapy, over an observation period of 12 months. Approximately, 71% of patients had excellent cosmetic outcomes. All patients had satisfactory therapeutic effects and significant improvements in quality of life and mental health. Downregulation of p16 and Ki‐67 may have been correlated with recurrence after 5‐ALA‐PDT.ConclusionCombined treatment with superficial shaving and 5‐ALA‐PDT is a safe and effective option for VIN. In particular, combination therapy is recommended for patients with large, multifocal, high‐grade lesions; repeated recurrence; and strong willingness to maintain vulvar configuration and function. Lasers Surg. Med. © 2019 Wiley Periodicals, Inc.
A Multi‐Functional Silicon Nanoparticle Designed for Enhanced Osteoblast Calcification and Related Combination Therapy
Authors: Shao Nannan , Guan Yuyao , Liu Sha , Li Xiaoyuan , Zhou Dongfang , Huang Yubin 
Published: November 2019

AbstractImplant materials applied in bone defect commonly focus on the inducement of bone regeneration and neglect to cure complications including bacterial infection and inflammation, which may result in delayed unions or even amputation. In this study, a microporous silica nanoparticle‐poly(N‐isopropylacrylamide‐b‐(2‐(dimethylamino)ethyl methacrylate) is synthesized for loading DXMS and the ECM‐derived peptide (Sequence: Succinic acid‐GTPGPQGIAGQRGVV) in order to enhance the osteoblast calcification and relieve related symptoms. Positively charged PDMA blocks endow the nanoparticle with the antimicrobial property. Moreover, the combination of DXMS makes it have the ability of anti‐inflammation and promoting calcification formation. Furthermore, incorporation of the peptide leads to a significant improvement of mineralization and alkaline phosphatase expression in the preosteoblast. After intramuscular implantation in mice for four weeks, the results indicate the composite nanoparticle can promote ectopic bone formation. These combined properties make the composite silicon nanoparticle a promising osteogenic drug appropriate for further study in bone repair and related combination therapy.
Mechanical Assembly of Thermo‐Responsive Polymer‐Based Untethered Shape‐Morphing Structures
Authors: Wang Wei 
Published: November 2019

AbstractShape‐morphing robotic structures can provide innovative approaches for various applications ranging from soft robotics to flexible electronics. However, the programmed deformation of direct‐3D printed polymer‐based structures cannot be separated from their subsequent conventional shape‐programming process. This work aims to simplify the fabrication process and demonstrates a rapid and adaptable approach for building stimulus‐responsive polymer‐based shape‐morphing structures of any shape. This is accomplished through mechanically assembling a set of identical self‐bending units in different patterns to form morphing structures using auxiliary hard connectors. A self‐bending unit fabricated by a 3D printing method can be actuated upon heating without the need for tethered power sources and is able to transform from a flat shape to a bending shape. This enables the assembled morphing‐structure to achieve the programmed integral shape without the need for a shape‐programming process. Differently assembled morphing structures used as independent robotic mechanisms are sequentially demonstrated with applications in biomimetic morphing structures, grasping mechanisms, and responsive electrical devices. This proposed approach based on a mechanical assembling method paves the way for rapid and simple prototyping of stimulus‐responsive polymer‐based shape‐morphing structures with arbitrary architectures for a variety of applications in deployable structures, bionic mechanisms, robotics, and flexible electronics.
Nehari‐type families of harmonic mappings
Authors: Arbeláez Hugo , Chuaqui Martin , Sierra Willy 
Published: November 2019

AbstractWe introduce affine and linearly invariant families of locally injective harmonic mappings of the unit disk . We derive sharp distortion theorems for the Jacobian that are used to establish a uniform modulus of continuity for the quasiconformal mappings in each class. Finally, we find a converse of a recent theorem of Chen and Ponnusamy characterizing when the image under a quasiconformal harmonic univalent mapping is a John domain.
Characterizing White Matter in Huntington's Disease
Authors: Gregory Sarah , Johnson Eileanoir , Byrne Lauren M. , Rodrigues Filipe B. , Henderson Alexandra , Moss John , Thomas David , Zhang Hui , De Vita Enrico , Tabrizi Sarah J. , Rees Geraint , Scahill Rachael I. , Wild Edward J. 
Published: November 2019

ABSTRACTBackgroundInvestigating early white matter (WM) change in Huntington's disease (HD) can improve our understanding of the way in which disease spreads from the striatum.ObjectivesWe provide a detailed characterization of pathology‐related WM change in HD. We first examined WM microstructure using diffusion‐weighted imaging and then investigated both underlying biological properties of WM and products of WM damage including iron, myelin plus neurofilament light, a biofluid marker of axonal degeneration—in parallel with the mutant huntingtin protein.MethodsWe examined WM change in HD gene carriers from the HD–CSFcohort, baseline visit. We used standard‐diffusion magnetic resonance imaging to measure metrics including fractional anisotropy, a marker of WM integrity, and diffusivity; a novel diffusion model (neurite orientation dispersion and density imaging) to measure axonal density and organization; T1‐weighted and T2‐weighted structural magnetic resonance imaging images to derive proxy iron content and myelin‐contrast measures; and biofluid concentrations of neurofilament light (in cerebrospinal fluid (CSF) and plasma) and mutant huntingtin protein (in CSF).ResultsHD gene carriers displayed reduced fractional anisotropy and increased diffusivity when compared with controls, both of which were also associated with disease progression, CSF, and mutant huntingtin protein levels. HD gene carriers also displayed proxy measures of reduced myelin contrast and iron in the striatum.ConclusionCollectively, these findings present a more complete characterization of HD‐related microstructural brain changes. The correlation between reduced fractional anisotropy, increased axonal orientation, and biofluid markers suggest that axonal breakdown is associated with increased WM degeneration, whereas higher quantitative T2 signal and lower myelin‐contrast may indicate a process of demyelination limited to the striatum.
Application of a new method for simultaneous phase and baseline correction of NMR signals (SINC)
Authors: Steimers Ellen , Sawall Mathias , Behrens Richard , Meinhardt Denise , Simoneau Joël , Münnemann Kerstin , Neymeyr Klaus , von Harbou Erik 
Published: November 2019

AbstractRecently, we presented a new approach for simultaneous phase and baseline correction of nuclear magnetic resonance (NMR) signals (SINC) that is based on multiobjective optimization. The algorithm can automatically correct large sets of NMR spectra, which are commonly acquired when reactions and processes are monitored with NMR spectroscopy. The aim of the algorithm is to provide spectra that can be evaluated quantitatively, for example, to calculate the composition of a mixture or the extent of reaction. In this work, the SINC algorithm is tested in three different studies. In an in‐house comparison study, spectra of different mixtures were corrected both with the SINC method and manually by different experienced users. The study shows that the results of the different users vary significantly and that their average uncertainty of the composition measurement is larger than the uncertainty obtained when the spectra are corrected with the SINC method. By means of a dilution study, we demonstrate that the SINC method is also applicable for the correction of spectra with low signal‐to‐noise ratio. Furthermore, a large set of NMR spectra that was acquired to follow a reaction was corrected with the SINC method. Even in this system, where the areas of the peaks and their chemical shifts changed during the course of reaction, the SINC method corrected the spectra robustly. The results show that this method is especially suited to correct large sets of NMR spectra and it is thus an important contribution for the automation of the evaluation of NMR spectra.
Radiofrequency excitation–related 23Na MRI signal loss in skeletal muscle, cartilage, and skin
Authors: Kordzadeh Atefeh , Duchscherer Jade , Beaulieu Christian , Stobbe Rob 
Published: November 2019

PurposeTo assess the sodium MRI signal loss resulting from typically used RF excitation pulses in human skeletal muscle, patellar cartilage, and skin.MethodsA double flip‐angle experiment was performed 3 times on the knees of 5 healthy volunteers with prescribed ω1 = γB1 of 1.67 kHz, 0.333 kHz, and 0.167 kHz. This was done to search for ω1‐dependent increased rates of sodium‐23 central resonance flipping known to result from residual quadrupole splitting (ωQ), as this flip‐angle effect is associated with signal loss. This study facilitated in vivo regression of Gaussian‐distributed residual quadrupole splitting SD (ωQ(SD)) as well as T2fast and T2slow. Signal loss predicted from simulation was then compared with images acquired using 90° RF pulse lengths of 0.5 ms, 0.25 ms, and 0.15 ms.ResultsSodium‐23 central resonance flipping was significantly greater than prescribed (44% cartilage, 23% skin, 9% muscle) using ω1 = 0.167 kHz, but only 4% cartilage, 5% skin, and 2% muscle using ω1 = 1.67 kHz. Regression yielded ωQ(SD) = 420 ± 50 Hz for cartilage but no significant ωQ(SD) for skin or muscle. This points to rapid biexponential relaxation as the cause of the flip‐angle effect for skin/muscle. The T2fast(60%)/T2slow(40%) values were 1.6 ± 0.8 ms/16.1 ± 2.5 ms for muscle, 2.7 ± 0.9 ms/18.4 ± 2.5 ms for cartilage, and 0.4 ± 0.1 ms/9.3 ± 1.7 ms for skin. Simulation predicted signal loss of 6% ± 3%, 3% ± 1%, and 2% ± 1% for muscle, 16% ± 3%, 6% ± 1%, and 3% ± 1% for cartilage, and 26% ± 7%, 15% ± 4%, and 10% ± 3% for skin when using 90° RF pulse lengths of 0.5 ms, 0.25 ms, and 0.15 ms, matching experiment.ConclusionHigh‐power (short) RF pulses are necessary to reduce excitation‐related signal loss, particularly for sodium‐23 imaging of cartilage and skin.
Invariant manifolds in control problems
Authors: Steindl Alois 
Published: November 2019

AbstractInvariant manifolds are useful tools for the investigation of nearly all nonlinear systems. Especially for the determination of stabilizing controls the center‐stable manifold characterizes the proper feedback controls.The method is demonstrated for the stabilization of a tethered satellite in the local vertical position by applying tension control. While in‐plane perturbations can be extinguished in finite time, the tension control acts as parametric excitation for out‐of‐plane perturbations and is only able to cause a slow algebraic decay for both kinds of perturbations. An analytical or numerical power series expansion of the center‐stable manifold at the target state provides the proper feedback controls.
Examining the role of school psychologists as providers of mental and behavioral health services
Authors: Eklund Katie , DeMarchena Sarah L. , Rossen Eric , Izumi Jared T. , Vaillancourt Kelly , Rader Kelly Shawna 
Published: November 2019

AbstractThe school setting represents the most common setting by which youth receive mental and behavioral health (MBH) services (Farmer et al., 2003, Psychiatr Serv, 54, 60–66). Nevertheless, many school psychologists are not providing MBH services despite the high prevalence of need. Additional research is needed to understand factors leading to these deficits, as well as potential solutions to ameliorate these concerns. The current study surveyed 341 school psychologists across seven states and found current ratios are one school psychologist for every 1,500–2,000 students. Study results suggest school psychologists are providing a half to full day of universal, prevention‐oriented MBH services each week whereas more targeted, direct services (e.g., individual or small group counseling) are offered 1–4 hr each week. The school psychologist‐to‐student ratios also demonstrated a statistically significant and inverse association with the provision of targeted MBH services, with higher ratios resulting in fewer MBH services. Respondents provided potential solutions for how to expand the delivery of MBH services within schools, including increased awareness and support among school and district administrators, as well as access to training and professional development related to MBH services.
How the medical professionals impact ASL and English families’ language planning policy
Authors: Kite Bobbie Jo 
Published: November 2019

AbstractThis article explores the journey of eight hearing families of bimodal‐bilingual deaf children as they navigate the decision‐making process reflecting their beliefs and values about American Sign Language (ASL) and English through their family language policy framework. The resources offered to families with deaf children often reflect a medical view, rather than a cultural perspective of being deaf. Because medical professionals, educators, and specialists who work with deaf and hard‐of‐hearing children have a strong influence on family members’ opinions, beliefs, and attitudes about being deaf, it is even more crucial to correct misconceptions about ASL and empower families to develop a family language policy that is inclusive of their deaf and hard‐of‐hearing children. This article informs researchers, teachers, and other professionals about the potential benefits and challenges of supporting the families’ ASL and English language planning policy.