bluuebunny/crossref_metadata_2025 huggingface dataset:
P‐239: Late‐News Poster: Quantum Dots for Display Applications, Thermal and Photostability through Shell Design
Authors: Nakonechnyi Igor , Zawacka Natalia , Proost Kristof , Abe Sofie , Smet Philippe , Hens Zeger
Published: June 2017

We analyze the stability of the photoluminescence efficiency of flash core/shell quantum dots (QDs). We show that shell design is crucial to suppress thermal quenching and long‐term photodegradation, where a radial composition change from CdS to ZnS results in QDs that surpass the stability requirements of display applications.
P‐240: Late‐News Poster: Inverted Hybrid Quantum Dot LED with Blue Polymer as Both Hole Transporting Layer and Emission Layer
Authors: Jiang Congbiao , Zhong Zhiming , Zou Jianhua , Wang Lei , Wang Jian , Ying Lei , Peng JunBiao , Cao Yong
Published: June 2017

A blue polymer poly (dibenzothiophene‐S,S‐dioxide‐co‐9,9‐dioctyl‐2,7‐fluorene) (PFSO) was introduced as the solution processed hole transport layer (HTL) in an inverted red quantum dots LED (QLED). The device exhibits a turn‐on voltage of 2.0 V, a peak current efficiency of 12.0 cd/A, and a maximum brightness of 9700 cd/m2. The blue polymer functions as both HTL and emission layer (EML) by inkjet printing red QDs to expose the blue polymer to the electron transporting layer (ETL). Though the device has decent performance with 2.2 V turn‐on voltage, and 7.7 lm/W power efficiency, the device color is purple because of no green emission. By adding green QDs to the hybrid device, white LED will be realized.
P‐115: Distinguished Student Paper: All Solution‐Processed White Quantum‐Dot Light‐Emitting Diodes with Three‐Unit Tandem Structure
Authors: Zhang Heng , Wang Siting , Sun Xiaowei , Chen Shuming
Published: June 2017

In this work, we demonstrate all‐solution processed three‐unit (red/green/blue) white tandem QLEDs for the first time. The white tandem devices are achieved by serially connecting the red bottom sub‐QLED, the green middle sub‐QLED and the blue top sub QLED using the inter‐connecting layer (ICL) based on ZnMgO/PEDOT:PSS heterojunction. With the proposed ICL, the two‐unit tandem QLEDs exhibit a high current efficiency of 22.22 cd/A, while the three‐unit white QLEDs exhibit a peak current efficiency of 4.75 cd/A at a high luminance of 4206 cd/m2 . Displays based on the developed white QLEDs exhibit a wide color gamut of 114% NTSC. This work confirms the effectiveness of the proposed ZnMgO/PEDOT:PSS ICL and the feasibility of making all‐solution processed tandem white QLEDs by using the proposed ICL.
P‐119: High Compatible Quantum Dot by Ligand Modification and Fabrication of a Film with the Quantum Dot
Authors: Lee Chang Min , Lee Woo Seok , Jin Ho Seok , Kim Bo Kyeong , Chae Heeyeop
Published: June 2017

The Cd based quantum dots (QD) was synthesized and introduced novel reactive ligand. The novel ligand facilitated high compatibility to the QD and the QD was well‐dispersed in various organic solvents. The reactive ligand could participate cross‐linking reaction to fabricate a film and it might increase stability of the film.
P‐124: Bending Shift Free Plastic Liquid Crystal Display
Authors: Huang Tai-Hsiang , Chen Zheng-Han , Li Wen-Yuan , Chiu Pin-Hsiang , Chiu Wei-Ju , Lu Jen-Kuei , Sugiura Norio
Published: June 2017

A special cell structure design using in plastic liquid crystal display (LCD) was successfully fabricated to overcome upper and bottom substrate alignment shift during bending situation. Bending shift for plastic LCD before and after the application of dual substrate photo spacer (PS) design were 66.5 and less than 5 um, respectively.
P‐126: A New Coatable Circular Polarizer for Anti‐Reflection of Flexible AMOLED
Authors: Ma Xin-Li , Chen Xiao-Chuan , Xiao Li , Wang Hai-Yan , Tan Ji-Feng , Song Ping , Shi Ge , Yang Ya-Feng , Lv Jing , Wang Da-Wei
Published: June 2017

We have developed a coatable circular polarizer which can be used for anti‐reflection of flexible OLED. The fabricated coatable circular polarizer exhibits advantages of low cost, simple process and thin thickness of 3μm which can be a big help to improve the curvature radius of the flexible OLED.
P‐173: A Novel Method for Evaluating Water Permeability in Sealants by Secondary Ion Mass Spectrometry
Authors: Nakamura Tatsuru , Akiyama Tsuyoshi , Miyamoto Takashi , Sameshima Junichiro , Nakagawa Yoshitsugu
Published: June 2017

We have proposed a novel method for evaluating water permeability in sealants. The use of isotope‐labeled water, deuterium oxide (D2O), and secondary ion mass spectrometry enabled to clarify permeated D2O concentration profile after exposure in D2O vapor. This method is promising for evaluating the water permeation behavior in organic films.
P‐130: A Proof‐of‐Concept Study for Optimizing Encapsulation Structure for Flexible Electronics Devices Based Novel Thin Gas Barrier Film
Authors: Naganawa Satoshi , Nishijima Kenta , Iwaya Wataru , Kashio Mikihiro , Izumi Tatsuya
Published: June 2017

An optimum encapsulation structure for flexible electronics devices was presented by theoretically and experimentally. Optimum encapsulated test device whose gas barrier layer was located around neutral‐axis passed 10,000 cycles of 2 mm radius of curvature bending test. For design of flexible electronics devices, to locate the most fragile layer near neutral‐axis is very effective strategy to achieve high flexibility.
P‐134: Flexible Transparent Electrode Film with a Continuous Ag Nanofiber Network Embedded Structure for Flexible OLEDs
Authors: Park Juyoung , Hyun Byung Gwan , Im Hyeon-Gyun , An Byeong Wan , Park Jang-Ung , Bae Byeong-Soo
Published: June 2017

We report a flexible and high‐performance TCE/substrate platform by introducing electro‐spun Ag nanofiber (AgNF) and glass‐fabric reinforced hybrimer (GFRHybrimer) with high transparency and robustness. A single‐line network of AgNF, which already has a conductive path without junction, can provide high transparency and low sheet resistance, simultaneously. Moreover, GFRHybrimer matrix enhances the thermal stability of the AgNF TCE and mechanical durability of the composite film with smooth surface topography. To confirm the reliability and durability, we fabricated OLED on the AgNF/GFRHybrimer composite film and demonstrated the availability of the composite film for the next generation opto‐electronics.
P‐137: Vt Behaviors of LTPS‐TFT Fabricated on PI substrate for Flexible Applications
Authors: Kim Junehwan , Kim Hyojung , Baek Minji , Lee Jaesub , Park Myeongkyu , Kim Cheolkyu , Hwang Youngsun , Park Jongwoo
Published: June 2017

In this paper, one of goals is to elucidate Vt behaviors of a top gate LTPS‐TFT fabricated on the PI substrate exposed to the negative bias temperature stress (NBTS), hot carrier injection (HCI) and breakdown voltage (BV). Physical and device characterization intend to comprehend the structural dependency of LTPS‐TFT on Vt stability and reliability in comparison to the glass substrate. It is found that turn‐over Vt behaviors of a top gate LTPS‐TFT on the polyimide (PI) substrate depends on negative bias temperature stress (NBTS) conditions. Vt behaviors are attributed to LTPS‐TFT structure dependent intrinsic negative charges at the interface between the barrier and PI substrate, causing the accumulation of positive charges at the poly‐Si back channel. In fact, intrinsic process parameters, such as barrier thickness and PI cure conditions, play important roles to control interfacial charges at the interface. Finally, streamlined barrier process enables LTPS‐TFT on PI substrate to expand advanced flexible applications without compromising luminescence and reliability.
P‐182: Universal Host o‐DiCbzBz for High Efficiency Phosphorescence and Thermal Active Delayed Fluorescence Organic Light Emitting Device
Authors: Chiu Tien-Lung , Huang Jau-Jiun , Tseng Po-Chen , Huang Yu-Hsiang , Gau Huan-Jie , Leung Man-kit , Lee Jiun-Haw , Kuo Chao-Hui , Wen Shi-Wen
Published: June 2017

A bipolar compound, o‐DiCbzBz, was synthesized conjugating two hole transporting moieties carbazole (Cbz) with an electron transporting moiety benzimidazole (Bz). Employing as a universal host doped with red, green, blue phosphorescence (PH) and thermal active delayed fluorescence (TADF) emitter to be the emitter layer inside organic light emitting diodes, devices exhibited an excellent efficiency performance, especially an excellent external quantum efficiency (ηEQE) of 31.8% with PH FIrpic and a high ηEQE of 26.3% with TADF 4CzIPN
P‐191: Realizing Deep‐Blue TADF Emission with CIE of (0.16, 0.15) using a Highly Twisted Acceptor Unit
Authors: Ohsawa Tatsuya , Komatsu Ryutaro , Sasabe Hisahiro , Nakao Kohei , Hayasaka Yuya , Kido Junji
Published: June 2017

A series of pyrimidine‐based pure blue TADF emitters are developed. Among them, a deep blue emitter exhibited CIE coordinates of (0.16, 0.15), a low turn‐on voltage of 3.25 V, very high EQE of 18%, and a high PE of 20 lm W–1.
P‐228: Late‐News Poster: Self‐Aligned Planar Metal Double‐Gate Cu‐MIC Poly‐Ge TFTs Fabricated at 300°C on a Glass Substrate
Authors: Utsumi Hiroki , Sasaki Taisei , Sekiguchi Shunya , Takeuchi Shoya , Ohsawa Hiroki , Hara Akito
Published: June 2017

Self‐aligned planar metal double‐gate p‐channel polycrystalline‐germanium thin‐film transistors were fabricated at 300 °C on a glass substrate by copper metal induced crystallization and lateral metallization of source‐drain using aluminum electrodes. A nominal mobility of 25 cm2 /Vs was obtained owing to the high hole mobility of germanium, and an on/off ratio of 30 was achieved by the double‐gate structure. Our proposal is expected to be a novel method for fabricating high‐performance TFTs on plastic substrates.
P‐193: Viewing Angle Performance of Curved Color‐by‐White AMOLEDs
Authors: Kimmel Jyrki , Bergquist Johan , Kamada Taisuke , Ito Minato , Sakuishi Tatsuya , Tamatsukuri Yuki , Miyairi Noriko , Nishido Yusuke , Jimbo Yasuhiro , Yokoyama Kohei , Yamazaki Shunpei
Published: June 2017

Viewing angle performance of flexible organic light‐emitting displays (FOLEDs) with red‐green‐blue (RGB) side‐by‐side (SBS) architecture plays a major role in the visual appearance in the curved state. In particular, viewing the display from a central‐normal vantage point, the color shift becomes visible when viewing the bent edges of the display. The viewing angle performance of a color‐by‐white FOLED was measured goniometrically and compared with a SBS FOLED.
P‐231: Late‐News Poster: Mechanical Behavior Study of Flexible Material
Authors: Chang Cheng-Hao , Wang Wen-Ting , Hsieh Wei-Jung , Wang Wan-Tsang , Lin Yu-Hsin
Published: June 2017

Bendability is a key feature to define robustness of the flexible material. In order to quantify the bendability, there are many different mechanisms for bending test. Although those bending test machines may do the same bending radius, frequency and so on, however, the mechanism with and without the supporting plate induced different mechanical behavior. In this paper, the influence between the designs of mechanism and the stress trend has been disclosed.
P‐147: Study on the Correlation of Flicker Shift Phenomenon and Ion Accumulation Mechanism in FFS Mode LCD Panel
Authors: Huang Kun-Tsai , Hung Yu-Wen , Fang Ri-Xen , Chao Yuan-Te , Lee Tina , Lee Conrad , Lin Sung-Chin , Chiang Howard , Kao Chris , Jen Ting-Shian
Published: June 2017

Flicker shift is a serious problem in FFS mode LCD, In this paper, we analysis the mechanism of Flicker shift phenomenon. Different PI material was compared and the flexoelectric effect, ion accumulation phenomenon, and optimum Vcom setting of of FFS LCD panel was discussed.
P‐215: Definition and Design of a Good Light
Authors: Jou Jwo-Huei , Singh Meenu , He Zhe-Kai , Su Yu-Ting
Published: June 2017

Only energy‐saving can no longer be justified as a good light. It should also be healthy with high light‐quality. We have hence developed a new approach toward designing good lights for both display and lighting technologies, depending on the required color temperature.
P‐186: Realization of Low‐Voltage Drop across Charge Generation Layer using Bi‐layer Oxide Semiconductors for Tandem OLEDs
Authors: Yang Hongsheng , Kim Junghwan , Hosono Hideo
Published: June 2017

The efficient charge generation ability of the MoOx/transparent amorphous oxide semiconductor (TAOS) bi‐layer is reported. The MoOx/TAOS bi‐layer charge generation layer (CGL) exhibited high optical transparency, low carrier injection barrier and low driving voltage for tandem OLEDs. It was also discovered that TAOS has ohmic contact with MoOx, which resulted in very small voltage drop across the charge generation layer. These results suggest that novel tandem white OLEDs with low driving voltage would be realized using the MoOx/ TAOS CGL.
P‐144: Sub‐millisecond Switching of Polymer‐stabilized Liquid Crystals with Crossed Patterned Electrodes
Authors: Huh Jae-Won , Ji Seong-Min , Heo Joon , Yoon Tae-Hoon
Published: June 2017

We report switching of polymer‐stabilized liquid crystals (PSLCs) with crossed interdigitated electrodes. A PSLC cell with crossed interdigitated electrodes is switchable between the transparent and opaque states, and it exhibits a sub‐millisecond response time and a low operating voltage. In the transparent state, a PSLC cell driven with crossed interdigitated electrodes has high specular transmittance and low haze; in the opaque state, it has low specular transmittance and high haze. The measured turn‐on and turn‐off time of the fabricated PSLC cells were 0.47 ms and 0.46 ms, respectively. We expect that a PSLC cell driven with crossed interdigitated electrodes can be applied to window display applications.
P‐145: Submillisecond Grayscale Response Time of a Uniform Lying Helix Liquid Crystal
Authors: Gou Fangwang , Lee Yun-Han , Tan Guanjun , Hu Minggang , Lan Yi-Fen , Tsai Cheng-Yeh , Wu Shin-Tson
Published: June 2017

A reasonably good alignment of a uniform lying helix (ULH) liquid crystal is achieved and its gray‐to‐gray (GTG) response time investigated. The averaged GTG rise time is 0.35 ms and fall time is 0.53 ms. Such a fast response time helps suppress image blurs and color breakup for field‐sequential color displays.
P‐149: Maximization of Transmittance and Minimization of Image‐Flickering due to Flexoelectric Effect in Low‐Frequency Driving Fringe‐Field Switching (FFS) Mode Using LCs with Negative Dielectric Anisotropy
Authors: Lee Chang Suk , Choi Han Sol , Ham Hyeong Gyun , Yoo Hye Sun , Kim MinSu , Lim Young Jin , Kim Tae Hyeong , Bos Philip J. , Yang Deng-Ke , Lee Seung Hee
Published: June 2017

Image‐flickering due to flexoelectric effect in a low frequency
driven fringe‐field switching (FFS) LCD is troublesome.
Maximization of transmittance in the FFS mode is achieved
using LCs with negative dielectric anisotropy but still the
flickering exists. The paper describes in detail on optimal
solutions how it can be solved by controlling the ratio of
electrode width to distance and thickness of passivation layer.
The results greatly contribute to achieve high transmittance and
image‐flickering free FFS LCD.
P‐150: Flexoelectric Effect in Fine‐patterned In‐plane Switching (IPS) Mode
Authors: Cho Kyeong Jun , Ham Hyeong Gyun , Lee Seung Jae , Kim MinSu , Kim Yeong Su , Yang Deng-Ke , Park Hyun-Su , Lee Gi-Dong , Lee Seung Hee
Published: June 2017

Low‐frequency driving of liquid crystal displays can greatly
reduce the power consumption, but the flexoelectric effect badly
occurs as an optical fluctuation in space and time, so‐called
image‐flickering. In a fringe‐field switching (FFS) mode, both
dynamic and static image flickering occur whereas, for an in‐plane
switching (IPS) mode, dynamic image‐flicker takes place
with no static flicker. However, the overall transmittance in IPS
mode is relatively poor as compared to that of FFS mode. Here,
we demonstrate that fine‐patterned electrodes and negative
dielectric anisotropy liquid crystal can greatly enhance the
transmittance as high as that of FFS mode while keeping no static
image flicker. The remained dynamic flicker can be also
significantly reduced by increasing the magnitude of dielectric
anisotropy of liquid crystals. We report the detailed behavior of
voltage‐ and time‐dependent transmittances.
P‐197: Enhanced Out‐coupling Efficiency of Organic Light‐Emitting Diodes using Nano‐sized Pixel Defining Layer
Authors: Hwang Ha , Shim Yong Sub , Lee Dong Jun , Kim Jae Geun , Lee Ju Sung , Choi Junhee , Park Young Wook , Ju Byeong-Kwon
Published: June 2017

In this study, organic light‐emitting diodes with enhanced out‐coupling efficiency were demonstrated by inserting nano‐sized pixel defining layer (nPDL). Photoresist is used for composing the nPDL through a laser inteference lithogrphy (LIL) process. The nPDL increases optical efficiency by the Bragg’s diffraction from periodic structures of photonic crystal and the corrugated metallic mirror.
P‐163: Color‐Shift Comparison between Negative and Positive Liquid Crystal
Authors: Tang Yuejun , Sun Haiyan , Wang Jun , Li Yongkai , Yang Tsungying , Li De-Jiun , Lung Po-Hua
Published: June 2017

Model of light leakage ratio was proposed by taking both the light
leakage and transmission into consideration for analyzing color
shift. The superior performance of negative liquid crystal for
improving color shift were explained by this model. It can reduce
Δu’v’ 75% compared to positive type in some condition.
P‐164: Novel Pixel Design of Multi‐Domain Polymer Sustained Alignment LCD Technology with Improved Mura Performance
Authors: Tien Kun-Cheng , Liao Chien-Huang , Gong Shin-Mei , Li Shu-En , Wu Jia-Long , Tsai Feng-Yueh , Hsu Wen-Hao
Published: June 2017

Multiple band mura phenomenon was usually observed due to the
CD variation from lens module for the conventional PSA LCD
technology. Using a novel pixel design of the partial full‐ITO
pattern in the TFT‐side glass, more stable luminance vs. voltage
relationship against process variation could be obtained. Therefore,
the mura phenomenon could be improved.
P‐165: Using 1Domain Pixel Design to Improve the Transmittance Rate of UV2A
Authors: Zhang Yu , Song Yan-Jun , Li Xiang , Fan De-Yong , Zhao Yong-Chao , Zhao Ren-Tang , Hsieh Chung-Ching , Chiu Chung-Yi , Lee Chia-Yu
Published: June 2017

1Domain pixel design UV2A has been proposed by changing
the way of exposure and it has high transmittance rate
performance due to the disappearance of the dark lines in
pixel. In order to compare the optical performance of
1Domain/4Domain, we prepared the 32HD 1Domain/4Domain
panel. We have investigated the transmittance rate, visual
angle and reliability of 1Domain/4Domain, to prove that
1Domain pixel is practicability in TV panel. Although the
32HD image quality is not very good due to the grid line, it is
proved that the high resolution panel can effectively avoid the
generation of the grid. And finally, a method to improve the
quality of 1Domain TV is proposed.
P‐166: Single‐TFT‐driving Blue‐phase LCD with Diamond‐shape Electrodes
Authors: Chen Haiwei , Lan Yi-Fen , Tsai Cheng-Yeh , Wu Shin-Tson
Published: June 2017

We propose a new electrode configuration, called diamond‐shape
in‐plane switching (DIPS), to lower the operation voltage
of polymer‐stabilized blue‐phase liquid crystal displays
(BPLCDs). Using an industrially‐proven BPLC mixture, we can
obtain 75% peak transmittance at 15 V, while keeping fast
response time. Our DIPS structure enables single‐TFT per pixel
to drive BPLCDs.
P‐203: Frequency Multiplexed Projected Capacitive Touch Screen
Authors: McCulloch Robert D. , David Albert M.
Published: June 2017

Frequency multiplexing projected capacitive (PCAP) touch screens for sensing and addressing overcomes key PCAP challenges which are radio noise sensitivity, connector cable crosstalk, difficult (numerous‐conductor) assembly and strictly limited cable length. One single intelligent controller of this kind is compatible with any frequency multiplexed PCAP touch screen size or resolution.
P‐204: Parameters of Driving Voltage of the Touch Screen Panel Electrode Inspection Instrument Using Polymer‐Dispersed Liquid Crystal
Authors: Oh Yonghwan , Yeo Sunggu , Lee Ji-Hoon
Published: June 2017

The transparent electrode inspection instruments using the polymer‐dispersed liquid crystal (PDLC) have problems of high driving voltage. We found that the driving voltage is dependent on the thickness and the dielectric constant of the PDLC and the over‐coating layers and the distance between the PDLC and the touch screen panel.
P‐206: Force Sensor Embedded Advanced In‐cell Touch Panel for TFT‐LCD
Authors: Kim Cheolse , Kim JuHan , Kim SungCheol , Park YongChan , Han SungSu , Ju SuYun , Lee Bu-Yeol , Yoon SooYoung , Kang InByeong
Published: June 2017

We propose a force sensor embedded advanced in‐cell touch panel which can detect both touch and force input at the same time. Force sensor embedded 5.3” QHD panel has been developed, which works under activation force of 50gf and covers up to 1kgf.
P‐207: Research on Improving the ESD Ability of OGS Based on DOE
Authors: Jun Li , Xi-bin Shao , Zong-jie Guo , Qi-cheng Chen , Lei Zhang , Liang Jiang , Rui-feng Wang , Xun Cui
Published: June 2017

In this paper, two ESD phenomenon of OGS touch panel were analyzed, that are electrostatic breakdown of black matrix and bridge. Firstly analyzed the principle of electrostatic breakdown of black matrix and metal bridge. Then, Using two‐level factorial designs methods, take the ESD ability of glass surface and sensor surface as response variables, these influence parameters were optimized with factors of cost, transmittance, electrical uniformity etc. and obtained the optimal parameter combination is SiO2 thickness 400 Å,ITO space 100pm, bridge width 10µm, OC2 thickness 2.0µm. Experiment results show that, using the optimized parameters, the ESD ability of glass surface by the original 7 kV up 10 23 kV and sensor surface by the original 2 kV up to 7 kV, as well as, the electrical properties and optical property are all spec in.
P‐209: Augmenting Capacitive Touch with Piezoelectric Force Sensing
Authors: Gao Shuo , Nathan Arokia
Published: June 2017

In this work, force touch sensing is achieved in conventional capacitive touch panels, by employing piezoelectric materials. To achieve high sensitivity and stability in force detection, deep analysis of employing piezoelectric material in interactive displays is provided, together with possible solutions for piezoelectric principle related force sensing issues.
P‐210: Investigation on the Reliability of OGS Thermoplastic ACF
Authors: Xiao-yue He , Xi-bin Shao , Zong-jie Guo , Tao-feng Xie , Lei Zhang , Wen-jin Fan , Lin-yan Wu , Qin-pu Wang
Published: June 2017

In this paper, the reliability of thermoplastic ACF in the process of OGS touch panel manufacturing was studied. The fourier transform infrared spectroscopy (FTIR), volume removal gel permeation chromatography (GPC) and weighing method research were used to characterize the structure of functional group, molecular weight and the change of absorption rate of ACF colloid materials under different curing condition. The thermal decomposition temperature and glass transition temperature were characterized by thermo gravimetric and differential thermal (TG‐DSC) analysis. The effect of high temperature and high humidity on the bond strength of ACF was studied by the failure test of adhesion mode. The results showed that, under high temperature and high humidity environment, because of the erosion of water molecules, the plasticity of ACF materials became stronger, the glass transition temperature (Tg) decreased and the thermal stability became worse. As a result, the bond strength of the material was greatly influenced by the humidity. In addition, the comparison of different aging time pull out force test after the thermoplastic ACF sample scanning electron microscope (SEM) images could be indicated that the peeling effect of ACF with damp heat aging time was more and more obvious.
Scared to Death: Reflections on Panic and Anxiety in the Field
Authors: McKinzie Ashleigh E.
Published: June 2017

This paper examines reflections about researcher emotions and the experience of having panic attacks and panic disorder as a result of fieldwork. Anxiety and panic are sparsely discussed in methodological appendices and handbooks about qualitative research, and the embodiment of mental health in the field has received even less attention. I have two aims in the paper: to describe the experience of panic attacks and to open a discussion about panic and anxiety attacks in the field. The failure to address mental health problems as a result of fieldwork can negatively impact expert and fledgling ethnographers, and should be remedied.
Diagrid structural systems for tall buildings: Changing pattern configuration through topological assessments
Authors: Angelucci Giulia , Mollaioli Fabrizio
Published: June 2017

Diagrid structural systems have been widely adopted for high‐rise buildings in the last decades, due to their structural efficiency and architectural potentials. The paper gives a comprehensive outline of the peculiarities of diagrids, providing a complete framework of their mechanical behaviour and investigates the accuracy of the assumptions used in common practice. The study explores, firstly, the effectiveness of the stiffness‐based methodology for optimal (69°) and nonoptimal (82°) diagonal inclinations, evaluating if the common approach leads to the definition of optimized cross sections in terms of reducing drifts and steel utilization. Subsequently, the paper analyses and compares diagrid models with non‐uniform pattern configuration generated from topological assessments. The authors test the contribution of a hybrid structure combining diagrid and outrigger systems to appraise whether a local increase in the pattern might be advantageous and preferable to a gradual stiffening from the top of the building toward the base.
Service‐Learning in the Second Language Writing Classroom: Future Directions for Research
Authors: Swacha Kathryn Yankura
Published: June 2017

This article reviews the current literature on second language writing and service‐learning. Service‐learning has grown in popularity in higher education over the past two decades, but comparatively little research has been done on the learning experiences of second language writers in service‐learning courses. This article outlines the major contexts in which service‐learning has been discussed and notes gaps in the current research, such as limited studies on which type of service‐learning best supports learners of English as a second language (ESL) in writing courses and on undergraduate ESL students in mainstream writing courses that employ service‐learning. The article concludes by offering teachers and curriculum developers practical recommendations, based on the reviewed literature, for how to implement service‐learning in writing courses.
Re: How to monitor pregnancies complicated by fetal growth restriction and delivery before 32 weeks: post‐hoc analysis of TRUFFLE study. W. Ganzevoort, N. Mensing Van Charante, B. Thilaganathan, F. Prefumo, B. Arabin, C. M. Bilardo, et al., on behalf of the TRUFFLE Group. Ultrasound Obstet Gynecol 2017; 49: 769–777.
Authors: Schenone M.
Published: June 2017

Linked Comment: Ultrasound Obstet Gynecol 2017; 49: 769–777
Re: Right ventricular outflow tract obstruction in complicated monochorionic twin pregnancy. S. J. Eschbach, L. S. T. M. Boons, E. Van Zwet, J. M. Middeldorp, F. J. C. M. Klumper, E. Lopriore, A. K. K. Teunissen, M. E. Rijlaarsdam, D. Oepkes, A. D. J. Ten Harkel, M. C. Haak. Ultrasound Obstet Gynecol 2017; 49: 737–743.
Authors: Hornberger L. K.
Published: June 2017

Linked Comment: Ultrasound Obstet Gynecol 2017; 49: 737–743
Reversibly pH‐Switchable Anionic‐Surfactant‐Based Emulsions
Authors: Chen Hui , Zhang Yuandi , Liu Xuefeng , Zhang Yongmin , Fang Yun
Published: June 2017

To develop a convenient and reversible strategy for phase separation and re‐emulsification of surfactant‐based emulsions, we established a method for pH switching of emulsions formed from a pH‐switchable anionic surfactant, potassium dodecyl seleninate (C12SeO2K). Upon acidification, C12SeO2K was protonated to give a precipitate of dodecyl seleninic acid (C12SeO2H); upon basification, C12SeO2H was neutralized restore C12SeO2K. The pH‐switchable window of the emulsion thus obtained was a pH range of 7 to 8. Reversible changes in both interfacial tension by ~10.2 mN m−1, as well as the mechanical, steric, and/or electrical barriers formed by C12SeO2K at the interface of the oil–aqueous solution account for the fully reversible phase separation and re‐emulsification of the C12SeO2K‐based emulsions. A stable emulsion (i.e. the time needed to separate 1 mL of H2O from 6 mL of emulsion at 25 °C is larger than 1 h) could be cycled at least 25 times when the pH was varied between 7 and 8.
A Pictorial Review of Hepatobiliary Magnetic Resonance Imaging with Hepatocyte-Specific Contrast Agents: Uses, Findings, and Pitfalls of Gadoxetate Disodium and Gadobenate Dimeglumine
Authors: Scali Elena P. , Walshe Triona , Tiwari Hina Arif , Harris Alison C. , Chang Silvia D.
Published: June 2017

Magnetic resonance imaging (MRI) has a well-established role as a highly specific and accurate modality for characterizing benign and malignant focal liver lesions. In particular, contrast-enhanced MRI using hepatocyte-specific contrast agents (HSCAs) improves lesion detection and characterization compared to other imaging modalities and MRI techniques. In this pictorial review, the mechanism of action of gadolinium-based MRI contrast agents, with a focus on HSCAs, is described. The clinical indications, protocols, and emerging uses of the 2 commercially available combined contrast agents available in the United States, gadoxetate disodium and gadobenate dimeglumine, are discussed. The MRI features of these agents are compared with examples of focal hepatic masses, many of which have been obtained within the same patient therefore allowing direct lesion comparison. Finally, the pitfalls in the use of combined contrast agents in liver MRI are highlighted.
Beyond symptom monitoring: Consumer needs for bipolar disorder self-management using smartphones
Authors: Nicholas J. , Boydell K. , Christensen H.
Published: June 2017

Objectives:

To investigate the potential use of smartphone apps to support self-management in young adults with bipolar disorder.

Methods:

We recruited 89 young adults (18–30 years) with bipolar disorder to complete a cross-sectional online survey. The survey contained quantitative and qualitative questions regarding technology use, current use of disorder-management apps, types of apps desired for disorder management, and app features that users would consider important when selecting apps. Results were analysed using descriptive statistics and thematic analysis.

Results:

Almost all participants used a smartphone daily and 40% currently used apps for disorder management. Of those not currently using apps, 79% indicated they would like to try them. On average, participants rated 61% of the self-management strategies listed as desirable for app support, with sleep-management, understanding early warning signs and triggers, and stay-well plans the most frequently endorsed. App features considered important during app selection were ease-of-use, scientific quality, flexibility/customisation, and data privacy.

Conclusions:

The results indicate that young adults with bipolar disorder are interested in a wide range of apps for self-management. Participants were interested in apps to support self-management strategies considered clinically important for disorder management. Many of these app needs are currently unmet. Results suggest diversifying and prioritising app capabilities to ensure evidence-based resources for a broader range of app functions are available to consumers.
«¿Qué vas a hacer el resto de tu vida?»: la elección de una especialidad médica
Authors: Sánchez-Mendiola Melchor
Published: June 2017

La vida está llena de opciones, escenarios diversos y caminos no andados. Cada día nos enfrentamos a un sinnúmero de decisiones que debemos tomar, algunas relativamente intrascendentes como los zapatos que nos vamos a poner, y otras que tendrán un impacto mayor en nuestra vida y la de nuestros pacientes y estudiantes, como prescribir la quimioterapia de un paciente con cáncer o la calificación de un estudiante de medicina al final de su rotación hospitalaria.
Nuclear Weapons and the Court
Authors: Ranganathan Surabhi
Published: June 2017

Although caution must be exercised in attributing a policy to the International
Court of Justice, it is difficult not to see the Marshall
Islands judgments as part of a longer trend of the Court using
formalistic reasoning to decline cases concerning nuclear weapons.
Europeana Fashion: Past, present and future
Authors: Suls Dieter
Published: June 2017

The subject of this article is Europeana Fashion, an EU-funded initiative that deals with the aggregation and online dissemination of the digital fashion heritage from the most important European collections. The project started with a consortium consisting of 22 partners from 12 European countries and included the Victoria and Albert Museum (London), Les Arts Décoratifs (Paris), MoMu (Antwerp) and many other museums. Also archives of brands, such as Missoni and Pucci were represented. The main goal of Europeana Fashion was to harvest the digital collections of fashion institutions and to re-present them in a uniform way on a specialized fashion portal. This article outlines the origins of the project, focussing on its main achievements, and offers a look into the future of europeanafashion.eu.
Historical holdings and new dimensions: The Fashion Institute of Technology-SUNY Library Unit of Special Collections and College Archives
Authors: Trivette Karen Jamison
Published: June 2017

The Fashion Institute of Technology (FIT)-SUNY Gladys Marcus Library's exquisite, rare, primary research materials are housed in its unit of Special Collections and College Archives; as such, it is known to those who study fashion and other creative industries throughout the world.

Like the unit's name, its mission is two-fold: regarding special collections, it acquires, preserves, and provides access to a wide range of primary research materials in their original formats and across many languages and geographical spectra. All acquisitions support one or more curricula offered at FIT. Regarding the college archives, the unit acquires, preserves, and provides access to college records permanently-scheduled for retention, or deemed to have enduring, historical value, created or received in the course of college business; archival records are created or received by administrators, staff, faculty, and students. Fulfilling this mission supports myriad goals in and across FIT units as well as research from those outside the FIT community.

This writer will introduce the collections to readers and briefly discuss the large-scale renovation that the unit is currently under-going.
Memories of style: Digitizing the Yorkshire Fashion Archive
Authors: Hall Suzanna
Published: June 2017

Although many fashion archives find it challenging to accurately represent their collections in a digital format, the task the Yorkshire Fashion Archive faced when creating their first electronic catalogue was uniquely difficult, as their collection spans far more than garments. As an archive that aims to represent socio-cultural history through clothing, it also collects oral histories, personal photographs and ephemera related to the garments from the original owners. While putting this information together into one digital record presented challenges, this also provided opportunities preserve the remembered history of the fashionable history of the Yorkshire region, alongside the objects and ephemera in the collection, to create a textually rich electronic archive.
P.019 Report from the Canadian Neurosurgery Research Collaborative – One year of resident-led multicentre research initiatives
Authors: Iorio-Morin C , Kameda-Smith M , Ahmed SU , Bigder M , Dakson A , Elliott C , Guha D , Lavergne P , Makarenko S , Taccone M , Tso M , Wang B , Winkler-Schwartz A
Published: June 2017

Background: The Canadian Neurosurgery Research Collaborative (CNRC) was founded in November 2015 as a resident-led national network for multicentre research. We present an annual report of our activities. Methods: CNRC meetings and publications were reviewed and summarized. The status of ongoing and future studies was collected from project leaders. Results: In its first year, the CNRC produced two papers accepted for publication in the Canadian Journal of Neurological Sciences: A CNRC launch letter and a study of operative volume at Canadian neurosurgery residency programs. Three manuscripts are in preparation: 1) a study of the demographics of Canadian neurosurgery residents, 2) an assessment of mobile devices usage patterns and 3) a validation study of the most utilized neurosurgery mobile apps. In addition, protocols for two multi-centre studies are currently undergoing national Research Ethics Board review: A retrospective study of the incidence and predictors of cerebellar mutism and a prospective registry of external ventricular drain procedures and complications. The network is now a registered not-for-profit organization endorsed by the Canadian Neurosurgical Society. Conclusions: The CNRC is a feasibile, relevant and productive resident-led national research network. As the CNRC matures, we look forward to expanding the scope and impact of its projects.
P.030 Hippocampal deep brain stimulation provides drastic relief for intractable seizures
Authors: Denton A , Wu A , Vitali A , Tellez-Zenteno J
Published: June 2017

Background: Deep brain stimulation (DBS) is the application of electrical currents via depth electrodes to regulate neuronal activity. DBS has been shown as a productive intervention for seizure control in patients with drug-resistance. This case had both a failed response to antiepileptic drugs (AEDs) and a temporal lobectomy. Methods: This case details the evolution of epilepsy in a 29-year-old female with seizures since the age of around 10. The patient has been followed for 6 months to monitor the treatment effects. No medication changes were made post-procedure. Results: The patient experienced a seizure frequency of 2-5 events per month. The patient had a right temporal lobectomy at age 12, which led to only 3 years in remission. The events are complex partial seizures characterized by unresponsive staring, lip smacking, hand automatisms and confusion. The patient failed 7 AEDs. Intracranial recording showed the most frequent activity coming from the left anterior and posterior hippocampus. Two depth electrodes were implanted accordingly. Stimulation began in September 2016 and the patient has since had only 2 seizures. Conclusions: Deep brain stimulation provides extensive relief for this case of intractable epilepsy. The patient’s level of awareness, mood, and quality of life all improved significantly in response to treatment.
P.032 The impact of waiting time on the assessment of the first seizure onset in pediatrics
Authors: Khan AA , Lim J , Janzen B , Amiraslany A , Almubarak S
Published: June 2017

Background: Childhood epilepsy has increased in global incidence. Children with epilepsy require immediate healthcare evaluation and monitoring. Waiting times between first seizure onset and pediatric neurology assessment may impact seizure outcome at follow-up. Quality of medical care for children with first seizure onset will be assessed and the impact of pediatric neurology clinic waiting times on seizure outcomes will be determined Methods: This retrospective study, based on chart review, includes patients with first seizure evaluation at the Royal University Hospital in Saskatoon between January 2012 and December 2015. The interim period before first assessment and other factors were studied in relation to seizure outcome on follow-up. Results: 1158 patients were assessed. 378 (32.6%) patients had first seizure clinic assessment. 197 (52%) had epileptic events. 181 (48%) had non-epileptic events. The mean age of patients was 8.8 years. The mean waiting time for assessment by a pediatric neurologist was 4.33 months. The mean duration of follow-up was 20.9 months. At the last seizure assessment, 132 patients were free of seizures and 65 patients had a recurrence of seizures. Conclusions: First seizure assessment is crucial for management of children with epilepsy. Waiting time and other factors may influence seizure outcome, representing opportunities to improve standard medical care.
P.036 Targeted molecular therapy with quinidine for seizures in a neonate with KCNT1 mutation leads to poor response
Authors: Smith JM , Patel M , Xu Q , Uliel-Sibony S , Demos M , Connolly M , Datta A , Looned L
Published: June 2017

Background: The KCNT1 gene encodes subunits of the Na+-activated K+ channel, widely expressed in the CNS. Mutations of this gene have been implicated in Malignant Migrating Partial Seizures of Infancy (MMPSI). This early-onset epileptic encephalopathy represents a challenge due to pharmacoresistance. The channel-specific mutation represents the potential for targeted pharmacotherapy. Quinidine is a partial antagonist of the KCNT1 encoded channel; patients with MMPSI have been reported to have responded to doses ranging 34.4/kg/d - 60mg/kg/d. We present a case of MMPSI with a KCNTI mutation (c.G1283A:p.R428Q) trialled on quinidine. Methods: Following ineffective trials of 6 anti-seizure medications, this patient was trialled on oral quinidine. This patient was titrated up to a dose of 52mg/kg/d. Twenty-four hour EEG monitoring prior to quinidine therapy, and at target dose were compared. Results: Prior to initiation of quinidine, this patient experienced 22 electrographic seizures over 24 hours. At target dose, this patient experienced greater than 70 seizures over 24 hours. Conclusions: Quinidine has previously been reported to be effective in patients with MMPSI with the same and different mutations. We report the second case of a patient with MMPSI and KCNT1 mutation R428Q with poor clinical response to quinidine.
P.038 Clinical experience with perampanel for refractory pediatric epilepsy in one Canadian center
Authors: Xu H , Sachedina S , Huh L , Boelman C , Connolly M , Datta A
Published: June 2017

Background: Perampanel (PER) is a new anti-seizure medication that inhibits the α-amino-3-hydroxy-5-methyl-4-isoxazole-propionic acid (AMPA) class of glutamate receptors. It is available in Canada for children since 2014. It is important for physicians to be aware of the efficacy and tolerability of drugs in the post-marketing phase. Methods: We did a retrospective review of our experience with PER at BC Children’s Hospital. Patients on PER were identified. Clinical data, including demographics, efficacy, tolerability, adverse effects (AE) and retention rates were obtained by review of clinical records. Results: Of 24 patients pediatric patients prescribed PER, 21 (87%) had focal and three had symptomatic generalized epilepsy. Ten (42%) had greater than 50% reduction in seizures. In fifteen patients, (63%) PER was discontinued due to AE or poor response. Twelve (50%) had behavioral AE and eight (33%) had non-behavioral AE. PER was effective, at lower doses than required for adults. One third experienced serious AE. One patient experienced oculogyric crisis, not previously reported with PER. AE were not associated with high doses and were reversible. Possible risk factors for behavioral AE include behavioral problems with other medications and pre-existing behavioral co-morbidities. Conclusions: It is important for clinicians to be aware of and counsel patients about serious AE, particularly behavioral, when prescribing PER.
P.042 The use of functional MRI in low grade glioma surgery - a Canadian survey
Authors: Megyesi J , Kosteniuk S , Lau J
Published: June 2017

Background: The goal of a brain tumour operation is maximal safe resection. No widely used guidelines for the use of functional magnetic resonance imaging (fMRI) in these patients currently exist. In this study we are trying to determine if and how Canadian neurosurgeons use fMRI in the management of patients with low grade glioma (LGG). Methods: A 15-25 minute survey was created using an online survey tool. In Part One of the study the survey was distributed to neurosurgery consultant and resident staff at the London Health Sciences Centre (LHSC). In Part Two of the study the survey is being distributed to members of the Canadian Neurosurgical Society. The survey consists of two sections - background and case-based decision making. Results: There were six surveys from the LHSC staff. On average respondents indicated that they obtain fMRI for 9% of LGG patients, though 67% indicated that they were comfortable ordering and interpreting fMRI studies. In the case-based section, fMRI data did not tend to affect respondents’ preferred treatment, confidence in their treatment, or their predicted risk of surgical treatment. Conclusions: In this limited survey of LHSC neurosurgical staff there was no regular use of fMRI in LGG patients. We await the results of a national survey of Canadian neurosurgeons.
P.054 Bone marrow transplant restores Cerebrovascular Reactivity (CVR) in Sickle Cell Disease (SCD): a case presentation
Authors: Alhadid K , Kirby-Allen M , DeVeber G , Logan W , Dlamini N
Published: June 2017

Background: A diagnosis of SCD in childhood confers a 200-fold increase in the risk of arterial ischemic stroke. Blood flow velocity measures provide better identification of ischemic risk compared to angiography. This indicates that steno-occlusive arteriopathy is not the singular causative factor. Cerebrovascular reactivity allows for augmentation of cerebral blood flow when needed. Kosinski et al in 2016 demonstrated a direct correlation between CVR and hematocrit levels in SCD. We report a case where CVR persistently normalized in an SCD patient following bone marrow transplant therapy (BMT). Methods: A nine-month-old SCD patient presented with right AIS. Angiography revealed a bilateral Moya-Moya like arteriopathy. A TCD study was normal while a CVR-MRI study revealed markedly impaired reactivity in the entire anterior circulation. Haemaglobin-S at that time was 20.2 %. BMT was performed at age four due to frequent sickle cell crises. Results: One year post-transplant, CVR had dramatically improved in areas previously shown to have impairment (haemoglobin-S 0%). Neuroimaging five years post-transplant showed no further arteriopathy and persistently normalized CVR. Conclusions: BMT therapy resulted in the arrest of progressive intracranial arteriopathy and persistently restored vascular reserve. SCD might not only produce global hematological effects but also triggers local processes such as endothelial dysfunction and vascular inflammation that impair cerebrovascular function.