bluuebunny/crossref_metadata_2025_split huggingface dataset:
Assessment of the Placental Cord Insertion Using 3‐Dimensional Ultrasound at the Time of the Structural Fetal Survey
Authors: Rouse Caroline , Cantonwine David E. , Shipp Thomas D. 
Published: November 2018

ObjectivesThe influence of placental morphologic characteristics on pregnancy outcomes is poorly understood. Our objective was to evaluate the relationship of the distance of the placental cord insertion from the placental edge (PCI‐D) with associated placental characteristics as well as birth outcomes.MethodsWe performed a retrospective cohort study of nulliparous women with singleton gestations undergoing obstetric ultrasound examinations between 14 and 23 weeks’ gestation with a cervical length of greater than 3.0 cm who delivered between 24 and 42 weeks. A 3‐dimensional volume of the placenta was evaluated. The PCI‐D was obtained with Virtual Organ computer‐aided analysis software (GE Healthcare, Milwaukee, WI). Generalized linear regression and generalized additive models were fitted to explore the associations between the PCI‐D in relation to demographic and clinical characteristics.ResultsA total of 216 pregnancies were included in the analysis. The PCI‐D did not correlate with maternal age, gestational age at delivery, mode of delivery, or 5‐minute Apgar score. Although not statistically significant, the birth weight z score (P = .09) was associated with a longer PCI‐D, and gravidity was associated with a shorter PCI‐D (P = .10). A low‐lying placenta or placenta previa was associated with a longer PCI‐D (P = .03).ConclusionsThe PCI‐D is associated with a low placental position in the second trimester. These data are helpful for understanding placental development. The PCI‐D may be associated with pregnancy‐related factors such as birth weight and multigravidity. More research is required to evaluate the effects of pregnancy‐related factors on the PCI‐D and the effect of the PCI‐D on pregnancy outcomes.
Treatment of poikiloderma of Civatte using a redesigned pulsed dye laser with a 15 mm diameter treatment spot
Authors: Bernstein Eric F. , Schomacker Kevin , Paranjape Amit , Jones Christopher J. 
Published: November 2018

ObjectivesThe pulsed‐dye laser has long been a gold standard in the treatment of poikiloderma of Civatte. Recent advances in pulsed dye laser technology enable output energies 50% higher, enabling beam diameters of up to 15 mm with clinically relevant fluences. In this study, we investigate this new laser for treatment of this condition.Materials and MethodsTwenty subjects were enrolled in the study. A total of four treatments were administered at monthly intervals. Blinded assessment of digital, cross‐polarized photographs taken at baseline and two months following the last treatment was performed by blinded physician raters using an 11‐point clearance scale. Subject reported pain scores immediately following treatment and side effects at all visits were recorded by the investigator.ResultsSeventeen subjects completed the study. Blinded reviewers correctly identified the baseline photo in 48 of 51 cases (94%). All three reviewers mis‐identified the same subjects. The blinded reviewers scored 14 out of the 17 subjects with an improvement greater than 40% and 10 out of the 17 subjects greater than 50%. Average improvement was 49% for all 17 subjects. Side effects were limited to mild edema, and mild to moderate erythema and purpura. Pain scores averaged 3.5 on using an 11‐point scale.ConclusionThis study demonstrates the safety and effectiveness of a new pulsed‐dye laser with a 15 mm spot and 50% higher fluences for the treatment of poikiloderma of Civatte. Lasers Surg. Med. 51:54–58, 2019. © 2018 The Authors. Lasers in Surgery and Medicine Published by Wiley Periodicals, Inc.
Clinical benefit of using a multifractional Er:YAG laser combined with a spatially modulated ablative (SMA) module for the treatment of striae distensae: A prospective pilot study in 20 patients
Authors: Meningaud Jean Paul , SidAhmed‐Mezi Mounia , Billon Raphaelle , Rem Kessara , La Padula Simone , Hersant Barbara 
Published: November 2018

Background and ObjectiveStriae distensae (SD) are cutaneous lesions that often occur on the breasts, abdomen, hips, and thighs. The aim of this study is to evaluate the effectiveness of a new technique using a non‐invasive Er:YAG laser combined with Spatially Modulated Ablation (SMA) module for the treatment of SD.Study Design/Materials and MethodsThis prospective pilot clinical study included 20 patients with skin phototypes I to IV who are affected by SD. The Er:YAG 2940 nm laser with SMA module was used in scanning mode with fluences of 2.3 J/cm2, frequency of 3 Hz, and pulse duration of 0.3 milliseconds. The laser beam is split into several microspots and penetrates only by 50 μm in the epidermis thickness. This technology induces also the generation of acoustic waves to stimulate tissue regeneration. Each patient underwent six laser sessions. An objective and subjective assessment of SD were used. All adverse events were reported.ResultsMost patients reported good improvement and expressed their satisfaction with the treatment. Cutometric analysis showed significant improvement in skin elasticity at the end of study. Moreover, ultrasound analysis revealed an increase in dermal thickness (P < 0.01). POSAS scores decreased significantly at 3 and 6 months, reflecting improved skin quality. The average recovery time was 5 days, with no adverse effects reported.ConclusionUsing Er:YAG laser (2,940 nm) with SMA technology to treat SD resulted in improved volume and textural appearance without side effects. The elasticity and thickness of the dermis also improved. The Er:YAG laser with SMA module may be considered as a novel and effective technique to treat SD lesions with minimal time recovery. Lasers Surg. Med. 51:230–238, 2019. © 2018 Wiley Periodicals, Inc.
Facile Synthesis and Topological Transformation of Multicomponent Miktoarm Star Copolymers
Authors: Zhao Youliang 
Published: November 2018

AbstractMulticomponent miktoarm stars (MMSs) comprising at least three kinds of chemically different arm segments are extremely important due to their great potential as multiphase materials to elucidate composition/topology‐dependent properties and applications. At present, a “core first” route gives ABC stars, “coupling onto” and combinatorial methods afford ABC and ABCD stars, and modular and iterative approaches enable facile synthesis of MMSs with five or more components. Meanwhile, the introduction of stimuli‐labile linkages and couplable groups into star polymers further enriches the family of smart materials. Upon external stimuli, linking reaction, or postpolymerization modification, miktoarm stars are potentially converted into other architectural polymers such as linear, tadpole‐like, graft, and dendrimer‐like polymers via cleavage and rearrangement in the chain structure. This feature article aims to systematically summarize the synthetic methods and versatile topological transitions of ABC, ABCD, and ABCDE stars. The advantages and limitations of each approach are highlighted, and the future considerations on developments and challenges are discussed.
Bone infarction of the hip after hand allotransplantation: A case report
Authors: Kuo Yur‐Ren , Chen Chien‐Chang , Wang Jun‐Wen , Chang Jui‐Kun , Huang Yu‐Chi , Pan Cheng‐Chung , Lin Yi‐Chun , Wu Re‐Wen , Lee Chen‐Hsiang 
Published: November 2018

AbstractVascularized composite allotransplantation represents as an emerging field in reconstructive surgery. However, some complications can be associated with the procedure. The authors describe a case of bone infarctions of the bilateral hip joints following the first hand allotransplantation in Taiwan. A 45‐year‐old man who experienced a traumatic amputation of the distal third of his forearm received a hand transplantation from a brain‐dead donor. Immunosuppression included antithymocyte globulins, and bolus methylprednisolone (Solu‐Medrol) was used for the induction. The maintenance therapy protocol included systemic tacrolimus, mycophenolate mofetil, and prednisone. The patient discontinued the systemic steroid 15 months after surgery. Two episodes of acute rejections were observed at 105 and 810 days after surgery. These signs disappeared after pulse therapy with Solu‐Medrol, titration with tacrolimus, and topical immunosuppressive creams (tacrolimus and clobetasol). However, the patient felt pain in both hips after long periods of standing 30 months after the transplantation. A pelvic radiograph and magnetic resonance imaging revealed avascular necrosis (AVN) in both hip joints. Because of the progressive worsening of the pain, the patient underwent a decompression surgery on the left hip involving a fibula bone graft. The patient underwent a right hip hemi‐arthroplasty with a bipolar prosthesis 3 months later. The patient remained in good health without major complications. These findings indicate that systemic steroids and tacrolimus might be the major predisposing factors for the induction of AVN after hand allotransplantation.
A miniaturized ultrawideband Archimedean spiral antenna for low‐power sensor applications in energy harvesting
Authors: Alex‐Amor Antonio , Padilla Pablo , Fernández‐González José M. , Sierra‐Castañer Manuel 
Published: November 2018

AbstractThis work presents the design, manufacturing, and measurement of a miniaturized circularly polarized ultrawideband Archimedean spiral antenna that operates from 0.3 GHz to 16 GHz. It acts as a radiofrequency harvester, capturing the energy spectrum in the bands of interest (FM, DTT, LTE‐800, GSM‐900, GSM‐1800, LTE‐2100, WiFi, LTE‐2600 and WiMAX). A prototype of the Archimedean spiral has been manufactured and characterized in the laboratory, and a comparison of the harvested power with respect to other also manufactured baseline 2.4 GHz patch antennas has been carried out in two different locations: inside and outside the laboratory. These results prove that hundreds of microwatts can be acquired in a normal situation, without the spiral pointing directly at a prefixed source.
Novel asymmetrical Swastik‐shaped aperture coupled cylindrical dielectric resonator antenna with dual‐band and dual‐sense circular polarization characteristics
Authors: Sharma Anand , Tripathi Devendra Kumar , Das Gourab , Gangwar Ravi Kumar 
Published: November 2018

AbstractThis article presents the composition and investigation of asymmetrical Swastik‐shaped aperture coupled cylindrical dielectric resonator antenna (cDRA). This antenna structure contains 3 attractive features: (1) Plus‐shaped aperture stimulates dual hybrid mode inside the cDRA, which help to obtain broadsided radiation properties; (2) conversion of plus to asymmetric Swastik‐shaped aperture added circular polarization feature in the proposed radiator; (3) dual‐sense CP wave is another important feature. To validate the proposed radiating structure, prototype has been practically constructed and measured. Experimental data confirms that the proposed antenna functions over dual frequency ranges that are, 2.2‐2.45 and 3.0‐3.55 GHz with the percentage bandwidth of 10.75% and 16.79%, respectively. Practically measured axial ratio confirms that the proposed radiator is capable to create CP waves in dual frequency ranges that is, 2.32‐2.45 and 3.0‐3.32 GHz. Input as well as far‐field parameters confirm its applicability for Wireless Local Area Network (2.4 GHz) and Worldwide Interoperability for Microwave Access (3.3 GHz) applications.
Design of new reverberation chamber for electromagnetic compatibility and wireless device measurement applications and its reproducibility performance validation
Authors: Sim Dong‐UK , Kwak Sang Il , Kwon Jong Hwa , Park Seong‐Ook 
Published: November 2018

AbstractThis article proposes new reverberation chamber structure for electromagnetic compatibility and wireless device measurement applications. It consists of dual plate type mode stirrers and two types of reflectors that improve its original field uniformity. Based on the SD and eigenmode analysis, their effect is demonstrated, and through the final measured results, it is shown that the proposed reverberation chamber has excellent SD characteristic of <2.5 dB at 650 MHz or higher. In addition, from the viewpoint of its utilization, it is verified that for over the air performance of a commercial long‐term evolution mobile phone, its experimental reproducibility is very high, and its results show little difference from those obtained in the anechoic chamber.
The challenge of defining “ultra‐high‐risk” neuroblastoma
Authors: Morgenstern Daniel A. , Bagatell Rochelle , Cohn Susan L. , Hogarty Michael D. , Maris John M. , Moreno Lucas , Park Julie R. , Pearson Andrew D. , Schleiermacher Gudrun , Valteau‐Couanet Dominique , London Wendy B. , Irwin Meredith S. 
Published: November 2018

AbstractGiven the biological and clinical heterogeneity of neuroblastoma, risk stratification is vital to determining appropriate treatment. Historically, most patients with high‐risk neuroblastoma (HR‐NBL) have been treated uniformly without further stratification. Attempts have been made to identify factors that can be used to risk stratify these patients and to characterize an “ultra‐high‐risk” (UHR) subpopulation with particularly poor outcome. However, among published data, there is a lack of consensus in the definition of the UHR population and heterogeneity in the endpoints and statistical methods used. This review summarizes our current understanding of stratification of HR‐NBL and discusses the complex issues in defining UHR neuroblastoma.
Optical, mechanical, and photoelastic anisotropy of biaxially stretched polyethylene terephthalate films studied using transmission ellipsometer equipped with strain camera and stress gauge
Authors: Yang Sung Mo , Hong Sera , Kim Sang Youl 
Published: November 2018

ABSTRACTThe anisotropic properties of polyethylene terephthalate film resulting from its manufacturing process are quantitatively investigated in terms of its optical, mechanical, and photoelastic aspects. Transmission ellipsometers and a Jones‐matrix‐based analysis software together with a 4 × 4 Berreman‐matrix‐based analysis software are adopted to determine the wavelength‐dependent in‐plane birefringence, the principal refractive indices, and the orientation of the optical axis. Mechanical anisotropy is characterized in terms of the elastic compliance tensor components using the measured azimuthal angle‐dependent Young's modulus and Poisson's ratio. From the measured variation of the wavelength‐dependent in‐plane birefringence as a function of tensile stress, the dispersive photoelastic coefficients are obtained for a few sample azimuthal angles, and the components of the photoelastic tensor are determined. © 2018 Wiley Periodicals, Inc. J. Polym. Sci., Part B: Polym. Phys. 2019, 57, 152–160
Hydrothermal Synthesis of TiO2 Nanowires‐Reduced Graphene Oxide Nanocomposite to Enhance Electrochemical Performance in Supercapacitor
Authors: Yue Hong Yan , Guan En Hao , Gao Xin , Yao Fei , Wang Wan Qiu , Zhang Teng , Wang Zhao , Song Shan Shan , Zhang Hong Jie 
Published: November 2018

AbstractIn this paper, uniform TiO2 nanowires (TiO2 NWs) on reduced graphene oxide (RGO) nanosheets were successfully synthesized by a simple and low‐cost hydrothermal method. The high capacitance (202.5 F⋅g−1 at 1 A⋅g−1) and excellent cyclic stability (81.9% capacity retention after 5000 cycles) were achieved for TiO2 NWs‐RGO nanocomposite as supercapacitor electrode. The excellent electrochemical performance is due to the synergistic effect of one‐dimensional TiO2 NWs with chemical stability and RGO with excellent conductivity. Moreover, TiO2 NWs can effectively avoid agglomeration, shorten the ion diffusion length and greatly facilitate the charge transfer both at the contact interfaces and within the electrode materials during the electrochemical process. A symmetric supercapacitor was successfully assembled using the TiO2 NWs‐RGO nanocomposite. It possesses a remarkable performance with a specific capacitance of 45.7 F⋅g−1, an energy density of 9.08 Wh⋅kg−1 at a power density of 598 W⋅kg−1.
Simultaneous Increase in Brightness and Singlet Oxygen Generation of an Organic Photosensitizer by Nanocrystallization
Authors: Fateminia S. M. Ali , Kacenauskaite Laura , Zhang Chong‐Jing , Ma Suqian , Kenry  , Manghnani Purnima N. , Chen Junsheng , Xu Shidang , Hu Fang , Xu Bin , Laursen Bo W. , Liu Bin 
Published: November 2018

AbstractEfficient organic photosensitizers are attractive for cancer cell ablation in photodynamic therapy. Bright fluorescent photosensitizers are highly desirable for simultaneous imaging and therapy. However, due to fundamental competition between emission and singlet oxygen generation, design attempts to increase singlet oxygen generation almost always leads to the loss of fluorescence. Herein, it is shown for the first time that nanocrystallization enables a simultaneous and significant increase in the brightness and singlet oxygen generation of an organic photosensitizer. Spectroscopic studies show simultaneous enhancement in the visible light absorption and fluorescence after nanocrystallization. The enhanced absorption of visible light in nanocrystals is found to translate directly to the enhanced singlet oxygen production, which shows a higher ability to kill HeLa cells as compared to their amorphous counterpart.
Synthesis of P‐Doped and NiCo‐Hybridized Graphene‐Based Fibers for Flexible Asymmetrical Solid‐State Micro‐Energy Storage Device
Authors: Zhou Caixia , Gao Taotao , Wang Yujue , Liu Qilin , Huang Zhihan , Liu Xiaoxia , Qing Miaoqing , Xiao Dan 
Published: November 2018

AbstractFiber supercapacitors (FSCs) are promising energy storage devices in portable and wearable smart electronics. Currently, a major challenge for FSCs is simultaneously achieving high volumetric energy and power densities. Herein, the microscale fiber electrode is designed by using carbon fibers as substrates and capillary channels as microreactors to space‐confined hydrothermal assembling. As P‐doped graphene oxide/carbon fiber (PGO/CF) and NiCo2O4‐based graphene oxide/carbon fiber (NCGO/CF) electrodes are successfully prepared, their unique hybrid structures exhibit a satisfactory electrochemical performance. An all‐solid‐state PGO/CF//NCGO/CF flexible asymmetric fiber supercapacitor (AFSC) based on the PGO/CF as the negative electrode, NCGO/CF hybrid electrode as the positive electrode, and poly(vinyl alcohol)/potassium hydroxide as the electrolyte is successfully assembled. The AFSC device delivers a higher volumetric energy density of 36.77 mW h cm−3 at a power density of 142.5 mW cm−3. In addition, a double reference electrode system is adopted to analyze and reduce the IR drop, as well as effectively matching negative and positive electrodes, which is conducive for the optimization and improvement of energy density. For the AFSC device, its better flexibility and electrochemical properties create a promising potential for high‐performance micro‐supercapacitors. Furthermore, the introduction of the double reference electrode system provides an interesting method for the study on the electrochemical performances of two‐electrode systems.
Improving the structural quality and adhesion of functional coatings
Authors: Kostrin D. K. 
Published: November 2018

SummaryIn this paper a method of improving the structural quality and adhesion of functional coatings due to the pulsed mode of operation of a vacuum arc plasma source is described. The experiments were carried out by producing a carbon‐based coating on a molybdenum substrate by spraying a graphite cathode in the benzene vapors. Plasma flow control is provided by alternating connection of two power sources, which allows variable closure of electron and ion currents on the substrate. This mode of operation allows to alternate the mode of heating and active diffusion of particles into the substrate with the mode of their deposition, as well as to provide the process of formation and annealing of the coating layers.
Urbanization in the time of climate change: Examining the response of Indian cities
Authors: Khosla Radhika , Bhardwaj Ankit 
Published: November 2018

India's urban transition is salient to the growing emphasis on city responses to climate change. While projected to experience the largest global urban transition with significant infrastructure investment in the next few decades, the welfare of Indian cities remains poor, which complicates the implications for climate change mitigation and adaptation. This paper traces, synthesizes and characterizes the emerging literature on Indian urban climate debates. It discusses the arc of urban climate efforts, from an initial emphasis on climate vulnerabilities and risks, broadening over time to include climate mitigation. The paper examines the governance forms and political motivations with which such actions are pursued in cities and finds three overarching characteristics: the use of local development priorities as an entry point to climate mitigation and adaptation; the role of nonstate actors in promoting climate‐relevant outcomes; and the proclivity for discrete project‐based activities. The paper suggests that while a range of Indian cities are beginning to consider climate concerns, a larger strategic understanding of the interaction between climate and development priorities, across policy and governance levels, is yet to be developed. The future trajectory of urban India's responses to climate change will be shaped by the institutional prioritising, linking and integrating of urgent local development and mitigation and adaptation goals.This article is categorized under:

Climate and Development > Urbanization, Development, and Climate Change
Supersymmetric partially massless fields and non-unitary superconformal representations
Authors: Garcia-Saenz Sebastian , Hinterbichler Kurt , Rosen Rachel A. 
Published: November 2018

AbstractWe find and classify the$$ \mathcal{N}=1 $$N=1SUSY multiplets on AdS4which contain partially massless fields. We do this by studying the non-unitary representations of thed= 3 superconformal algebra of the boundary. The simplest super-multiplet which contains a partially massless spin-2 particle also contains a massless photon, a massless spin-3/2 particle and a massive spin-3/2 particle. The gauge parameters form a Wess-Zumino super-multiplet which contains the gauge parameters of the photon, the partially massless graviton, and the massless spin-3/2 particle. We find the AdS4action and SUSY transformations for this multiplet. More generally, we classify new types of shortening conditions that can arise for non-unitary representations of thed= 3 superconformal algebra.