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https://www.readbyqxmd.com/read/28944805/stretchable-3d-lattice-conductors
#1
Tingyao Li, Yanhui Jiang, Kunhao Yu, Qiming Wang
3D architectures have been long harnessed to create lightweight yet strong cellular materials; however, the study regarding how 3D architectures facilitate the design of soft materials is at the incipient stage. Here, we demonstrate that 3D architectures can greatly facilitate the design of an intrinsically stretchable lattice conductor. We show that 3D architectures can be harnessed to enhance the overall stretchability of the soft conductors, reduce the effective density, enable resistive sensing of the large deformation of curved solids, and improve monitoring of a wastewater stream...
September 25, 2017: Soft Matter
https://www.readbyqxmd.com/read/28944766/magnesium-oxide-nanoparticle-loaded-polycaprolactone-composite-electrospun-fiber-scaffolds-for-bone-soft-tissue-engineering-applications-in-vitro-and-in-vivo-evaluation
#2
Ajay Suryavanshi, Kunal Khanna, K R Sindhu, Jayesh Bellare, Rohit Srivastava
The objective of the present investigation was to assess the potential of magnesium oxide nanoparticle (MgO NP)-loaded electrospun polycaprolactone (PCL) polymer composites as a bone-soft tissue engineering scaffold. MgO NPs were synthesized using a hydroxide precipitation sol-gel method and characterized using field emission gun-scanning electron microscopy/energy-dispersive x-ray spectroscopy (FEG-SEM/EDS), field emission gun-transmission electron microscopy (FEG-TEM), and x-ray diffraction (XRD) analysis...
September 25, 2017: Biomedical Materials
https://www.readbyqxmd.com/read/28944692/a-new-dolabellane-diterpene-and-a-new-polyacetylene-from-the-soft-coral-clavularia-viridis
#3
Ming Zhao, Tao He, Shao-Kui Shi, Ling-Xiang Song, Yu Lu
A new dolabellane diterpene (1) and a new polyacetylene (2) were isolated from the soft coral Clavularia viridis. The structures of 1 and 2 were elucidated by spectroscopic analyses including 1D and 2DNMR experiments and HRESIMS data. The absolute configuration of 1 was determined by the modified Mosher's method and 2 by ECD calculations. Compound 1 exhibited moderate cytotoxicities against MCF-7 and A549 cell lines with IC50 values of 10.5 and 12.6 µM, respectively.
September 25, 2017: Natural Product Research
https://www.readbyqxmd.com/read/28944657/wetting-regimes-for-residual-layer-free-transfer-molding-at-the-micro-and-nanoscale
#4
Michael Deagen, Linda S Schadler, Chaitanya K Ullal
Transfer molding offers a low-cost approach to large-area fabrication of isolated structures in a variety of materials when recessed features of the open-faced mold are filled without leaving a residual layer on the plateaus of the mold. Considering both macroscale dewetting and microscale capillary flow, a proposed map of wetting regimes for blade meniscus coating provides a guide for achieving discontinuous dewetting at maximum throughput. Dependence of meniscus morphology on the azimuthal orientation of the stamp provides insight into the dominant mechanisms for discontinuous dewetting of 1-D patterns...
September 25, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28944569/prognostic-factors-and-treatment-outcomes-for-patients-with-fournier-s-gangrene-a-retrospective-study
#5
Kyung Sook Hong, Hee Jung Yi, Ryung-Ah Lee, Kwang Ho Kim, Soon Sup Chung
Fournier's gangrene is a gas-forming, necrotising soft tissue infection affecting the perineum. It spreads rapidly along the deep fascial planes and is associated with a high mortality rate. With a growing elderly population with comorbidities, the frequency of severe cases of Fournier's gangrene is expected to increase. We retrospectively reviewed 20 patients diagnosed with Fournier's gangrene at our institution from 2003 to 2014 and analysed data. Thirteen patients had diabetes mellitus, two had been diagnosed with liver cirrhosis, and four were chronic alcoholics...
September 25, 2017: International Wound Journal
https://www.readbyqxmd.com/read/28944385/correction-self-segregated-nanostructure-in-room-temperature-ionic-liquids
#6
Diego Pontoni, Julia Haddad, Marco Di Michiel, Moshe Deutsch
Correction for 'Self-segregated nanostructure in room temperature ionic liquids' by Diego Pontoni et al., Soft Matter, 2017, DOI: 10.1039/c7sm01464c.
September 25, 2017: Soft Matter
https://www.readbyqxmd.com/read/28944369/influence-of-implant-abutment-fabrication-method-on-clinical-outcomes-a-systematic-review
#7
Long Long, Hatem Alqarni, Radi Masri
AIM: The aim of this systematic review was to evaluate and synthesise the existing evidence on the effect of the prosthetic implant abutment design and fabrication process on mechanical, biological and aesthetic clinical outcomes. MATERIALS AND METHODS: Two electronic databases (PubMed and Embase) were searched in August 2016 to identify clinical studies evaluating the clinical outcomes of CAD/CAM abutments. The studies were screened and two reviewers used the full text to extract data independently...
2017: European Journal of Oral Implantology
https://www.readbyqxmd.com/read/28944361/cone-beam-computed-tomography-with-ultra-low-dose-protocols-for-pre-implant-radiographic-assessment-an-in-vitro-study
#8
Robert Liljeholm, Nils Kadesjö, Daniel Benchimol, Kristina Hellén-Halme, Xie-Qi Shi
PURPOSE: To evaluate the ultra-low dose scanning protocols of a newly developed CBCT for pre-implant radiographic assessment. MATERIALS AND METHODS: A total number of 32 CBCT scans were exposed at 90 kV using ProMax 3D's standard (GS) and three ultra-low dose scanning protocols: high, mid and low definition (UL-HD, UL-MD and UL-LD) on eight human dry skulls with simulated soft tissue. The mAs values and the voxel size were 96mAs/200 µm, 28mAs/150 µm, 22.4mAs/200 µm and 7...
2017: European Journal of Oral Implantology
https://www.readbyqxmd.com/read/28944357/endodontic-retreatment-vs-dental-implants-of-teeth-with-an-uncertain-endodontic-prognosis-1-year-results-from-a-randomised-controlled-trial
#9
Marco Esposito, Marco Tallarico, Anna Trullenque-Eriksson, Rodolfo Gianserra
PURPOSE: To ascertain whether in the presence of a previously endodontically treated tooth with a periapical pathology and/or symptoms and an uncertain prognosis, it is better to endodontically retreat it or to replace the tooth with a single implant-supported crown. MATERIALS AND METHODS: Forty patients requiring the treatment of a previously endodontically treated tooth, with a periapical pathology and/or symptoms of endodontic origin and an uncertain prognosis, as judged by the recruiting investigators, were randomly allocated to endodontic retreatment (endo group; 20 patients) or tooth extraction and replacement with an implant-supported crown (implant group; 20 patients) according to a parallel group design at two different centres...
2017: European Journal of Oral Implantology
https://www.readbyqxmd.com/read/28944255/soft-x-ray-absorption-spectroscopy-of-metalloproteins-and-high-valent-metal-complexes-at-room-temperature-using-free-electron-lasers
#10
Markus Kubin, Jan Kern, Sheraz Gul, Thomas Kroll, Ruchira Chatterjee, Heike Löchel, Franklin D Fuller, Raymond G Sierra, Wilson Quevedo, Christian Weniger, Jens Rehanek, Anatoly Firsov, Hartawan Laksmono, Clemens Weninger, Roberto Alonso-Mori, Dennis L Nordlund, Benedikt Lassalle-Kaiser, James M Glownia, Jacek Krzywinski, Stefan Moeller, Joshua J Turner, Michael P Minitti, Georgi L Dakovski, Sergey Koroidov, Anurag Kawde, Jacob S Kanady, Emily Y Tsui, Sandy Suseno, Zhiji Han, Ethan Hill, Taketo Taguchi, Andrew S Borovik, Theodor Agapie, Johannes Messinger, Alexei Erko, Alexander Föhlisch, Uwe Bergmann, Rolf Mitzner, Vittal K Yachandra, Junko Yano, Philippe Wernet
X-ray absorption spectroscopy at the L-edge of 3d transition metals provides unique information on the local metal charge and spin states by directly probing 3d-derived molecular orbitals through 2p-3d transitions. However, this soft x-ray technique has been rarely used at synchrotron facilities for mechanistic studies of metalloenzymes due to the difficulties of x-ray-induced sample damage and strong background signals from light elements that can dominate the low metal signal. Here, we combine femtosecond soft x-ray pulses from a free-electron laser with a novel x-ray fluorescence-yield spectrometer to overcome these difficulties...
September 2017: Structural Dynamics (Melville, N.Y.)
https://www.readbyqxmd.com/read/28944197/influence-of-corneal-power-on-circumpapillary-retinal-nerve-fiber-layer-and-optic-nerve-head-measurements-by-spectral-domain-optical-coherence-tomography
#11
Kazunori Hirasawa, Nobuyuki Shoji
AIM: To evaluate the influence of corneal power on circumpapillary retinal nerve fiber layer (cpRNFL) and optic nerve head (ONH) measurements by spectral-domain optical coherence tomography (SD-OCT). METHODS: Twenty-five eyes of 25 healthy participants (mean age 23.6±3.6y) were imaged by SD-OCT using horizontal raster scans. Disposable soft contact lenses of different powers (from -11 to +5 diopters including 0 diopter) were worn to induce 2-diopter changes in corneal power...
2017: International Journal of Ophthalmology
https://www.readbyqxmd.com/read/28944191/mmp-2-rs24386-c-t-gene-polymorphism-and-the-phenotype-of-age-related-macular-degeneration
#12
Rasa Liutkeviciene, Vaiva Lesauskaite, Giedre Sinkunaite-Marsalkiene, Sandrita Simonyte, Reda Zemaitiene, Loresa Kriauciuniene, Dalia Zaliuniene
AIM: To examine the MMP-2 (-1306 C/T) gene polymorphism and the phenotype characterized by soft and hard drusen of early age-related macular degeneration (AMD) and geographic atrophy of late AMD form. METHODS: The study enrolled 850 investigations (290 AMD patients with soft and hard drusen, 34 with geographic atrophy and a random sample of the population n=526). Early AMD was classified according to the International Classification and Grading System. For geographic atrophy diagnosis the Age-Related Eye Disease Study classification was used...
2017: International Journal of Ophthalmology
https://www.readbyqxmd.com/read/28944126/oral-hygiene-practices-and-teeth-cleaning-techniques-among-medical-students
#13
Sajida Naseem, Syeda H Fatima, Haider Ghazanfar, Sana Haq, Najeeb A Khan, Moeez Mehmood, Ali Ghazanfar
Objectives Oral health is essential for general health and quality of life. It is a state of being free from mouth and facial pain, oral and throat cancer, oral infections and sores, periodontal disease, tooth decay, tooth loss, and other diseases and disorders that limit an individual's capacity to bite, chew, smile, and speak; it affects psychosocial well-being too. The objective of our study was to assess teeth cleaning techniques and oral hygiene practices among medical students. Methods The data of the study were collected in two stages...
July 18, 2017: Curēus
https://www.readbyqxmd.com/read/28944088/loss-of-the-vitamin-d-receptor-in-human-breast-and-prostate-cancers-strongly-induces-cell-apoptosis-through-downregulation-of-wnt-%C3%AE-catenin-signaling
#14
Yu Zheng, Trupti Trivedi, Ruby Cy Lin, Colette Fong-Yee, Rick Nolte, Jeline Manibo, Yunzhao Chen, Musharraf Hossain, Konstantin Horas, Colin Dunstan, Hong Zhou, Markus J Seibel
Vitamin D co-regulates cell proliferation, differentiation and apoptosis in numerous tissues, including cancers. The known anti-proliferative and pro-apoptotic actions of the active metabolite of vitamin D, 1,25-dihydroxy-vitamin D [1,25(OH)2D] are mediated through binding to the vitamin D receptor (VDR). Here, we report on the unexpected finding that stable knockdown of VDR expression in the human breast and prostate cancer cell lines, MDA-MB-231 and PC3, strongly induces cell apoptosis and inhibits cell proliferation in vitro...
2017: Bone Research
https://www.readbyqxmd.com/read/28944031/herbivore-and-pathogen-effects-on-tree-growth-are-additive-but-mediated-by-tree-diversity-and-plant-traits
#15
Andreas Schuldt, Lydia Hönig, Ying Li, Andreas Fichtner, Werner Härdtle, Goddert von Oheimb, Erik Welk, Helge Bruelheide
Herbivores and fungal pathogens are key drivers of plant community composition and functioning. The effects of herbivores and pathogens are mediated by the diversity and functional characteristics of their host plants. However, the combined effects of herbivory and pathogen damage, and their consequences for plant performance, have not yet been addressed in the context of biodiversity-ecosystem functioning research. We analyzed the relationships between herbivory, fungal pathogen damage and their effects on tree growth in a large-scale forest-biodiversity experiment...
September 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/28944009/morphological-convergence-in-a-mexican-garter-snake-associated-with-the-ingestion-of-a-novel-prey
#16
Javier Manjarrez, Constantino Macías Garcia, Hugh Drummond
Morphological convergence is expected when organisms which differ in phenotype experience similar functional demands, which lead to similar associations between resource utilization and performance. To consume prey with hard exoskeletons, snakes require either specialized head morphology, or to deal with them when they are vulnerable, for example, during molting. Such attributes may in turn reduce the efficiency with which they prey on soft-bodied, slippery animals such as fish. Snakes which consume a range of prey may present intermediate morphology, such as that of Thamnophiine (Natricinae), which may be classified morphometrically across the soft-hard prey dietary boundary...
September 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/28943994/preservation-of-the-sterile-matrix-hyponychium-and-fingertip-pad-in-fingertip-reconstruction-with-composite-fingertip-and-nail-bed-graft-and-volar-v-y-advancement-flap
#17
Joshua T Henderson, Steven A Schulz, Andrew M Swiergosz, Andrea R Hiller, J Stephen Gunn, Joshua H Choo, Morton L Kasdan, Bradon J Wilhelmi
Background: The goals of fingertip reconstruction are to achieve adequate soft-tissue coverage and a functional nail plate and to maintain sensation, proprioception, and cosmesis. Objective: We present a composite tissue graft and volar V-Y advancement flap for reconstruction of a traumatic amputation of a fingertip, which provided optimal preservation of the hyponychium and the volar pad for prevention of a hook nail. Historically, composite fingertip grafts have not been recommended for adults with large defects...
2017: Eplasty
https://www.readbyqxmd.com/read/28943820/clinical-outcomes-with-continuous-nafcillin-infusions-in-children
#18
Chad A Knoderer, Lauren C Karmire, Kristen R Nichols
OBJECTIVES: The primary objective of this study was to describe the clinical outcomes of continuous nafcillin infusion in pediatric patients. METHODS: This was a retrospective case study performed at a freestanding, tertiary care children's hospital. Subjects were included if they were at least 30 days old and had received more than 1 dose of nafcillin by continuous infusion (CI) between January 1, 2009, and December 31, 2012. Clinical and microbiological data were extracted from the medical record...
July 2017: Journal of Pediatric Pharmacology and Therapeutics: JPPT: the Official Journal of PPAG
https://www.readbyqxmd.com/read/28943598/the-piezo-actuator-driven-pulsed-water-jet-system-for-minimizing-renal-damage-after-off-clamp-laparoscopic-partial-nephrectomy
#19
Yoshihiro Kamiyama, Shinichi Yamashita, Atsuhiro Nakagawa, Shinji Fujii, Koji Mitsuzuka, Yasuhiro Kaiho, Akihiro Ito, Takaaki Abe, Teiji Tominaga, Yoichi Arai
In the setting of partial nephrectomy (PN) for renal cell carcinoma, postoperative renal dysfunction might be caused by surgical procedure. The aim of this study was to clarify the technical safety and renal damage after off-clamp laparoscopic PN (LPN) with a piezo actuator-driven pulsed water jet (ADPJ) system. Eight swine underwent off-clamp LPN with this surgical device, while off-clamp open PN was also performed with radio knife or soft coagulation. The length of the removed kidney was 40 mm, and the renal parenchyma was dissected until the renal calyx became clearly visible...
2017: Tohoku Journal of Experimental Medicine
https://www.readbyqxmd.com/read/28943549/extramedullary-gastric-relapse-at-the-time-of-bone-marrow-relapse-of-acute-lymphoblastic-leukemia-after-allogeneic-bone-marrow-transplantation
#20
Kazuhiko Ikeuchi, Noriko Doki, Akinari Takao, Tsunekazu Hishima, Yuta Yamada, Tatsuya Konishi, Akihito Nagata, Toshiaki Takezaki, Satoshi Kaito, Shuhei Kurosawa, Masahiro Sakaguchi, Kaito Harada, Shunichiro Yasuda, Kosuke Yoshioka, Kyoko Watakabe-Inamoto, Aiko Igarashi, Yuho Najima, Hideharu Muto, Takeshi Kobayashi, Kazuhiko Kakihana, Hisashi Sakamaki, Kazuteru Ohashi
Extramedullary relapse (EMR) after allogeneic hematopoietic stem cell transplantation (allo-HSCT) is relatively rare. The most commonly reported sites in acute lymphoblastic leukemia (ALL) patients after allo-HSCT are soft tissue and the central nervous system, and the gastrointestinal system is an uncommon site. We herein report a unique case with massive hematemesis resulting from gastrointestinal relapse of ALL after allo-HSCT. Upper gastrointestinal endoscopy showed bleeding from a 1.5-cm submucosal tumorous lesion with central ulceration on the anterior wall of the stomach...
September 25, 2017: Internal Medicine
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