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https://www.readbyqxmd.com/read/28728288/-descemet-s-membrane-endothelial-keratoplasty-for-treatment-of-patients-with-corneal-endothelial-decompensation
#1
T Huang, C Ouyang, J Zhan, L Jiang
Objective: To evaluate the clinical outcomes of Descemet's membrane endothelial keratoplasty (DMEK) for treatment of patients with corneal endothelial decompensation in China. Methods: Interventional case series. Ten patients (10 eyes) with the diagnosis of corneal endothelial decompensation received DMEK during July 2016 and September 2016 in Zhongshan Ophthalmic Center. Descemet's membrane of the donor tissue was carefully stripped from the underlying stroma manually and cut with a 7.75- or 8.0-mm-diameter donor punch...
July 11, 2017: [Zhonghua Yan Ke za Zhi] Chinese Journal of Ophthalmology
https://www.readbyqxmd.com/read/28727471/cutting-edge-implant-rehabilitation-design-and-management-a-tapered-abutment-approach
#2
Mark Bishara, Gregori M Kurtzman
Immediate implant placement can pose challenges surgically and, ultimately, restoratively. Yet immediate placement has become the standard when adequate bone is present to achieve primary stability and site infection is minimal. To avoid prosthetic complications and ensure the implant is encased in bone after healing, proper planning must consider that implant placement does not necessarily need to follow the trajectory of the root socket. As discussed in this article, maxillary anterior sites have potential issues related to the "triangle of bone" that are not encountered in molar sites and demand different approaches to ensure treatment success...
July 2017: Compendium of Continuing Education in Dentistry
https://www.readbyqxmd.com/read/28727464/cutting-edge-implant-rehabilitation-design-and-management-a-tapered-abutment-approach
#3
Xavier Rodríguez, Xavier Vela, Maribel Segalà
Soft-tissue recession around an implant rehabilitation over time has been considered a physiologic phenomenon. The divergent profile of the abutment and the abutment's dis/reconnections are the most critical predisposing and precipitating factors regarding such gingival recession. Recent publications have discussed how tapered and marginless abutments that allow no disconnections and increase soft-tissue thickness could prevent implant rehabilitations from experiencing gingival recession. The objective of this article is to demonstrate the biologic rationale of tissue behavior surrounding tapered abutments and their clinical application...
July 2017: Compendium of Continuing Education in Dentistry
https://www.readbyqxmd.com/read/28726861/collaborative-enhancement-from-pb-2-and-f-in-pb2-no3-2-h2o-f2-generates-the-largest-second-harmonic-generation-effect-among-nitrates
#4
Guang Peng, Yi Yang, Yu-Huan Tang, Min Luo, Tao Yan, Yuqiao Zhou, Chensheng Lin, Zheshuai Lin, Ning Ye
The first metal nitrate fluoride nonlinear optical material, Pb2(NO3)2(H2O)F2, was synthesized with the largest second harmonic generation (SHG) effect (12 × KH2PO4) among nitrates. Theoretical calculations revealed the synergistic effect of [NO3](-), lone pair electrons in Pb(2+), and F(-) for the SHG effect. The F(-) also promoted the blue-shift of the ultraviolet cut-off edge.
July 20, 2017: Chemical Communications: Chem Comm
https://www.readbyqxmd.com/read/28726246/cryo-electron-tomography-the-cell-biology-that-came-in-from-the-cold
#5
REVIEW
Jonathan Wagner, Miroslava Schaffer, Rubén Fernández-Busnadiego
Cryo-electron tomography (cryo-ET) provides high resolution 3D views into cells pristinely preserved by vitrification. Recent technical advances such as direct electron detectors, the Volta phase plate and cryo-focused ion beam milling have dramatically pushed image quality and expanded the range of cryo-ET applications. Cryo-ET not only allows mapping the positions and interactions of macromolecules within their intact cellular context, but can also reveal their in situ structure at increasing resolution. Here, we review how recent work using cutting-edge cryo-ET technologies is starting to provide fresh views into different aspects of cellular biology at an unprecedented level of detail...
July 20, 2017: FEBS Letters
https://www.readbyqxmd.com/read/28724184/treatment-of-gestational-diabetes-mellitus-with-myo-inositol-analyzing-the-cutting-edge-starting-from-a-peculiar-case
#6
L Costabile, V Unfer
OBJECTIVE: The robust data about myo-inositol (Myo-Ins) safety profile and effectiveness opened a new scenario for the treatment and prevention of Gestational Diabetes Mellitus (GDM). We report our experience about a case of GDM successfully treated with Myo-Ins. PATIENTS AND METHODS: An overweight 29-year-old Caucasian pregnant woman, nulliparous, affected by GDM, according to the National Institute for Health and Care Excellence (NICE) Guideline. After diagnosis, the patient underwent regular glycemia checks: mean fasting blood glucose value was 103...
June 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28723750/sphincter-preserving-surgery-for-low-middle-rectal-cancer-can-we-predict-feasibility-with-high-resolution-magnetic-resonance-imaging
#7
Hai-Bin Zhu, Lin Wang, Zi-Yu Li, Xiao-Ting Li, Xiao-Yan Zhang, Ying-Shi Sun
The study proposed to evaluate the feasibility of predicting sphincter-sparing surgery (SSS) preoperatively in low-middle rectal cancer by using magnetic resonance (MR).The study included both retrospective and prospective design. In the retrospective design, the distance from lower edge of tumor to upper margin of the internal sphincter (Dis1) and distance to anal verge (Dis2) were measured on MR, the distance to anal verge recorded by colonoscopy (Dis3) and digital rectal examination (Dis4) were also obtained...
July 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28717186/overstepping-the-upper-refractive-index-limit-to-form-ultra-narrow-photonic-nanojets
#8
Guoqiang Gu, Jun Song, Hongda Liang, Mengjie Zhao, Yue Chen, Junle Qu
In general, photonic nanojets (PNJs) occur only when the refractive index (Ri) difference between the microparticle and background media is less than 2. The minimum full width at half-maximum (FWHM) of the PNJ is ~130 nm (approximately one-third of the illumination wavelength λ = 400 nm) formed within the evanescent field region. This paper proposes and studies a method to overstep the Ri upper bound and generate ultra-narrow PNJs. Finite element method based numerical investigations and ray-optics theoretical analyses have realized ultra-narrow PNJs with FWHM as small as 114...
July 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28717021/genetic-and-metabolic-engineering-in-diatoms
#9
REVIEW
Weichao Huang, Fayza Daboussi
Diatoms have attracted considerable attention due to their success in diverse environmental conditions, which probably is a consequence of their complex origins. Studies of their metabolism will provide insight into their adaptation capacity and are a prerequisite for metabolic engineering. Several years of investigation have led to the development of the genome engineering tools required for such studies, and a profusion of appropriate tools is now available for exploring and exploiting the metabolism of these organisms...
September 5, 2017: Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
https://www.readbyqxmd.com/read/28714982/dynamic-surface-self-reconstruction-is-the-key-of-highly-active-perovskite-nano-electrocatalysts-for-water-splitting
#10
Emiliana Fabbri, Maarten Nachtegaal, Tobias Binninger, Xi Cheng, Bae-Jung Kim, Julien Durst, Francesco Bozza, Thomas Graule, Robin Schäublin, Luke Wiles, Morgan Pertoso, Nemanja Danilovic, Katherine E Ayers, Thomas J Schmidt
The growing need to store increasing amounts of renewable energy has recently triggered substantial R&D efforts towards efficient and stable water electrolysis technologies. The oxygen evolution reaction (OER) occurring at the electrolyser anode is central to the development of a clean, reliable and emission-free hydrogen economy. The development of robust and highly active anode materials for OER is therefore a great challenge and has been the main focus of research. Among potential candidates, perovskites have emerged as promising OER electrocatalysts...
July 17, 2017: Nature Materials
https://www.readbyqxmd.com/read/28711309/influence-of-needle-bevel-design-on-injection-pain-and-needle-deformation-in-dental-local-infiltration-anaesthesia-randomized-clinical-trial
#11
M Dau, I Buttchereit, C Ganz, B Frerich, E N Anisimova, M Daubländer, P W Kämmerer
The aims of this in vivo study were to evaluate the impact of needle bevel design on patients' pain perception and the mechanical deformation of the needle tip after the injection. In a prospective single-blinded trial, 150 patients received conventional infiltration anaesthesia for dental treatment by one examiner. Patients were randomized for one out of three different needle bevel types (scalpel-designed bevel needle (SB), n=50; triple bevel needle (TB), n=50; regular bevel needle (RB), n=50). Subjects' self-reported injection pain perception was evaluated using a numeric rating scale (NRS)...
July 12, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28710774/ucsf-chimerax-meeting-modern-challenges-in-visualization-and-analysis
#12
Thomas D Goddard, Conrad C Huang, Elaine C Meng, Eric F Pettersen, Gregory S Couch, John H Morris, Thomas E Ferrin
UCSF ChimeraX is next-generation software for the visualization and analysis of molecular structures, density maps, 3D microscopy, and associated data. It addresses challenges in the size, scope, and disparate types of data attendant with cutting-edge experimental methods, while providing advanced options for high-quality rendering (interactive ambient occlusion, reliable molecular surface calculations, etc.) and professional approaches to software design and distribution. This paper highlights some specific advances in the areas of visualization and usability, performance, and extensibility...
July 14, 2017: Protein Science: a Publication of the Protein Society
https://www.readbyqxmd.com/read/28707253/the-impact-of-forest-roads-on-understory-plant-diversity-in-temperate-hornbeam-beech-forests-of-northern-iran
#13
Azade Deljouei, Ehsan Abdi, Matteo Marcantonio, Baris Majnounian, Valerio Amici, Hormoz Sohrabi
Forest roads alter the biotic and abiotic components of ecosystems, modifying temperature, humidity, wind speed, and light availability that, in turn, cause changes in plant community composition and diversity. We aim at investigating and comparing the diversity of herbaceous species along main and secondary forest roads in a temperate-managed hornbeam-beech forest, north of Iran. Sixteen transects along main and secondary forest roads were established (eight transects along main roads and eight along secondary roads)...
August 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/28705538/cutting-edge-perspectives-in-genomic-maintenance-iv
#14
EDITORIAL
Philip C Hanawalt, Samuel H Wilson
No abstract text is available yet for this article.
June 24, 2017: DNA Repair
https://www.readbyqxmd.com/read/28700627/network-analysis-of-exploratory-behaviors-of-mice-in-a-spatial-learning-and-memory-task
#15
Yusuke Suzuki, Itaru Imayoshi
The Barnes maze is one of the main behavioral tasks used to study spatial learning and memory. The Barnes maze is a task conducted on "dry land" in which animals try to escape from a brightly lit exposed circular open arena to a small dark escape box located under one of several holes at the periphery of the arena. In comparison with another classical spatial learning and memory task, the Morris water maze, the negative reinforcements that motivate animals in the Barnes maze are less severe and less stressful...
2017: PloS One
https://www.readbyqxmd.com/read/28696464/density-tunable-lightweight-polymer-composites-with-dual-functional-ability-of-efficient-emi-shielding-and-heat-dissipation
#16
Seung Hwan Lee, Seunggun Yu, Faisal Shahzad, Woo Nyon Kim, Cheolmin Park, Soon Man Hong, Chong Min Koo
Lightweight dual-functional materials with high EMI shielding performance and thermal conductivity are of great importance in modern cutting-edge applications, such as mobile electronics, automotive, aerospace, and military. Unfortunately, a clear material solution has not emerged yet. Herein, we demonstrate a simple and effective way to fabricate lightweight metal-based polymer composites with dual-functional ability of excellent EMI shielding effectiveness and thermal conductivity using expandable polymer bead-templated Cu hollow beads...
July 11, 2017: Nanoscale
https://www.readbyqxmd.com/read/28696054/undergraduate-research-as-curriculum
#17
EDITORIAL
Erin L Dolan
To date, national interests, policies, and calls for transformation of undergraduate education have been the main drivers of research integration into the undergraduate curriculum, briefly described here. The New Horizons in Biochemistry and Molecular Biology Education conference at the Weizmann Institute of Science (Israel) this fall presents an exciting opportunity to discuss integration of undergraduate research into the curriculum and other cutting-edge topics in biochemistry and molecular biology education from a cross-national perspective...
July 8, 2017: Biochemistry and Molecular Biology Education
https://www.readbyqxmd.com/read/28694303/single-molecule-fluorescence-microscopy-review-shedding-new-light-on-old-problems
#18
Sviatlana Shashkova, Mark C Leake
Fluorescence microscopy is an invaluable tool in the biosciences, a genuine workhorse technique offering exceptional contrast in conjunction with high specificity of labelling with relatively minimal perturbation to biological samples compared to many competing biophysical techniques. Improvements in detector and dye technologies coupled to advances in image analysis methods have fuelled recent development towards single-molecule fluorescence microscopy, which can utilise light microscopy tools to enable the faithful detection and analysis of single fluorescent molecules used as reporter tags in biological samples...
July 10, 2017: Bioscience Reports
https://www.readbyqxmd.com/read/28690431/a-protocol-demonstrating-60-different-drosophila-behaviors-in-one-assay
#19
Claire E McKellar, Robert A Wyttenbach
The fruit fly Drosophila melanogaster performs many behaviors, from simple motor actions to complex social interactions, that are of interest to neurobiologists studying how the brain controls behavior. Here, an undergraduate laboratory exercise uses cutting-edge methods to activate sets of neurons thermogenetically, triggering 60 different behaviors. Students learn how to recognize this large repertoire of behaviors from 16 fly strains that are publicly available, and from a large set of training videos provided here...
2017: Journal of Undergraduate Neuroscience Education: JUNE: a Publication of FUN, Faculty for Undergraduate Neuroscience
https://www.readbyqxmd.com/read/28690424/generating-subtour-elimination-constraints-for-the-tsp-from-pure-integer-solutions
#20
Ulrich Pferschy, Rostislav Staněk
The traveling salesman problem (TSP) is one of the most prominent combinatorial optimization problems. Given a complete graph [Formula: see text] and non-negative distances d for every edge, the TSP asks for a shortest tour through all vertices with respect to the distances d. The method of choice for solving the TSP to optimality is a branch and cut approach. Usually the integrality constraints are relaxed first and all separation processes to identify violated inequalities are done on fractional solutions...
2017: Cent Eur J Oper Res
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