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Timurdogan Erman E Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, - - 2014
Silicon photonics has emerged as the leading candidate for implementing ultralow power wavelength-division-multiplexed communication networks in high-performance computers, yet current components (lasers, modulators, filters and detectors) consume too much power for the high-speed femtojoule-class links that ultimately will be required. Here we demonstrate and characterize the first modulator to achieve ...
Ha Su-Jin SJ Department of Chemical and Biomolecular Engineering, Sogang University, Seoul 121-742, South - - 2014
Dye-sensitised solar cells (DSCs) are a promising substitute for conventional silicon solar cells. A scattering layer of submicrometer pores or particles has been widely introduced to achieve a high light-harvesting efficiency. However, many such fabrication processes require high temperatures and multiple steps to prepare the scattering layer. Here, we have ...
Dong Jianjie J School of Optoelectronics, Beijing Institute of Technology, Beijing 100081, - - 2014
A deep ultraviolet plasmonic structure is designed and a surface plasmon interference lithography method using the structure is proposed to generate large-area periodic nanopatterns. By exciting the anti-symmetric coupled surface plasmon polaritons in the structure, ultrahigh resolution periodic patterns can be formed in a photoresist. The resolution of the generated ...
Auffan Mélanie M 1] CNRS, Aix-Marseille Université, CEREGE UM34, UMR 7330, 13545 Aix en Provence, France [2] International Consortium for the Environmental Implications of Nanotechnology iCEINT, CNRS-Duke University, Aix en Provence, France [3] Center for the Environmental Implications of NanoTechnology CEINT, Duke University, Durham, North Carolina 27707, - - 2014
Physical-chemists, (micro)biologists, and ecologists need to conduct meaningful experiments to study the environmental risk of engineered nanomaterials with access to relevant mechanistic data across several spatial and temporal scales. Indoor aquatic mesocosms (60L) that can be tailored to virtually mimic any ecosystem appear as a particularly well-suited device. Here, this ...
Orikasa Yuki Y Graduate School of Human and Environmental Studies, Kyoto University, Yoshida-nihonmatsu-cho, Sakyo-ku, Kyoto 606-8501, - - 2014
Rechargeable magnesium batteries are poised to be viable candidates for large-scale energy storage devices in smart grid communities and electric vehicles. However, the energy density of previously proposed rechargeable magnesium batteries is low, limited mainly by the cathode materials. Here, we present new design approaches for the cathode in order ...
Mathur Raj Kumar RK Department of Surgery, MGM Medical College & MY Hospital, Indore 452001, - - 2014
Objective. To evaluate the long-term results of transpubic urethroplasty for pelvic fracture urethral distraction defects. Patients and Methods. Sixteen patients who had undergone transpubic urethroplasty for posttraumatic complex posterior urethral disruptions between 2007 and 2013 were analyzed retrospectively and prospectively. Patients were followed up for a mean (range) of 24 ...
Määttänen Anni A Laboratory of Physical Chemistry, Center of Excellence for Functional Materials, Abo Akademi University, Turku, - - 2014
The suitability of paper-based arrays for biofilm formation studies by Staphylococcus aureus is demonstrated. Laboratory-coated papers with different physicochemical properties were used as substrates. The array platform was fabricated by patterning the coated papers with vinyl-substituted polydimethylsiloxane (PDMS) -based ink. The affinity of bacteria onto the flexographically printed hydrophobic and ...
Gokhale Vikrant J VJ Electrical Engineering and Computer Science Department, University of Michigan, Ann Arbor, Michigan 48109, - - 2014
This work presents the first comprehensive investigation of phonon-electron interactions in bulk acoustic standing wave (BAW) resonators made from piezoelectric semiconductor (PS) materials. We show that these interactions constitute a significant energy loss mechanism and can set practical loss limits lower than anharmonic phonon scattering limits or thermoelastic damping limits. ...
Chatterjee Sudipta S University of Lille Nord de France, F-59000 Lille, France. - - 2014
The present study describes the development of multilayer microcapsules by 11 alternate additions of chitosan (Chi) and sodium dodecyl sulfate (SDS) in a combined emulsification and phase coacervation method based on ionic interactions. After an alkali treatment, microcapsules are applied on polyester (PET) fabric by a padding process to investigate ...
Kraus H H Experimental Physics VI, Julius-Maximilian University of Würzburg, 97074 Würzburg, - - 2014
Quantum systems can provide outstanding performance in various sensing applications, ranging from bioscience to nanotechnology. Atomic-scale defects in silicon carbide are very attractive in this respect because of the technological advantages of this material and favorable optical and radio frequency spectral ranges to control these defects. We identified several, separately ...
Jump Robin L P RL Geriatric Research Education and Clinical Center, Cleveland Veterans Affairs Medical Center, Cleveland, Ohio, United States of America; Division of Infectious Diseases and HIV Medicine, Department of Medicine, Case Western Reserve University, Cleveland, Ohio, United States of - - 2014
The intestinal microbiota protect the host against enteric pathogens through a defense mechanism termed colonization resistance. Antibiotics excreted into the intestinal tract may disrupt colonization resistance and alter normal metabolic functions of the microbiota. We used a mouse model to test the hypothesis that alterations in levels of bacterial metabolites ...
Okaba Shoichi S 1] Department of Applied Physics, Graduate School of Engineering, The University of Tokyo, 7-3-1 Bunkyo-ku, Tokyo 113-8656, Japan [2] Innovative Space-Time Project, ERATO, Japan Science and Technology Agency, 7-3-1 Bunkyo-ku, Tokyo 113-8656, - - 2014
Unlike photons, which are conveniently handled by mirrors and optical fibres without loss of coherence, atoms lose their coherence via atom-atom and atom-wall interactions. This decoherence of atoms deteriorates the performance of atomic clocks and magnetometers, and also hinders their miniaturization. Here we report a novel platform for precision spectroscopy. ...
Zhang Xueyan X Department of Experimental Pathology, Beijing Institute of Radiation Medicine, Beijing, People's Republic of China; Department of Pharmacy, 66400 People's Liberation Army Hospital, Beijing, People's Republic of - - 2014
The prevention and treatment of Microwave-caused cardiovascular injury remains elusive. This study investigated the cardiovascular protective effects of compound Chinese medicine "Kang Fu Ling" (KFL) against high power microwave (HPM)-induced myocardial injury and the role of the mitochondrial permeability transition pore (mPTP) opening in KFL protection. Male Wistar rats (100) ...
Shekhah Osama O 1] Functional Materials Design, Discovery and development (FMD3), Advanced Membranes and Porous Materials (AMPM); Physical Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Kingdom of Saudi Arabia - - 2014
Direct air capture is regarded as a plausible alternate approach that, if economically practical, can mitigate the increasing carbon dioxide emissions associated with two of the main carbon polluting sources, namely stationary power plants and transportation. Here we show that metal-organic framework crystal chemistry permits the construction of an isostructural ...
Kim Sora S University of Science and Technology (UST), Daejeon, Republic of - - 2014
Genetic engineering in microalgae is gaining attraction but nuclear transformation methods available so far are either inefficient or require special equipment. In this study, we employ positively charged nanoparticles, 3-aminopropyl-functionalized magnesium phyllosilicate (aminoclay, approximate unit cell composition of [H2N(CH2)3]8Si8Mg6O12(OH)4), for nuclear transformation into eukaryotic microalgae. TEM and EDX analysis of ...
Wang Cong-Zhi CZ Paul C. Lauterbur Research Center for Biomedical Imaging, Institute of Biomedical and Health Engineering, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China; Interdisciplinary Division of Biomedical Engineering, the Hong Kong Polytechnic University, Hong Kong, China; Beijing Center for Mathematics and Information Interdisciplinary Sciences, Beijing, - - 2014
Elderly people often suffer from sarcopenia in their lower extremities, which gives rise to the increased susceptibility of fall. Comparing the mechanical properties of the knee extensor/flexors on elderly and young subjects is helpful in understanding the underlying mechanisms of the muscle aging process. However, although the stiffness of skeletal ...
Piotrowiak Ilona I Department of Ophthalmology, Collegium Medicum, Nicolaus Copernicus University, Bydgoszcz, - - 2014
Background This study aimed to evaluate anterior segment spectral optical coherence tomography (AS SOCT) for assessing the lens-to-cornea fit of rigid gas-permeable (RGP) lenses. The results were verified with the fluorescein pattern method, considered the criterion standard for RGP lens alignment evaluations. Material and Methods Twenty-six eyes of 14 patients ...
Hsu Anne A School of Electronic Engineering and Computer Science, Queen Mary, University of London, London, United Kingdom . - - 2014
Knowledge of the psychological constructs that underlie behavior offers valuable design opportunities for persuasive systems. We use the decision theory, which describes how behavior is underpinned by reward-cost valuations, as a framework for investigating such psychological constructs to deliver design objectives for weight management technologies. We applied a decision theory-based ...
Yang Shufeng - - 2014
Many bacteria modulate and evade the immune defenses of their hosts through peptidoglycan (PG) deacetylation. The PG deacetylases from Streptococcus pneumonia, Listeria monocytogenes and Lactococcus lactis have been characterized. However, thus far, the PG deacetylase of Mycobacterium tuberculosis has not been identified. In this study, we cloned the Rv1096 gene ...
Miranda Jason A JA Department of Biology, Emory University, Atlanta, Georgia, United States of America; Center for Behavioral Neuroscience, Atlanta, Georgia, United States of - - 2014
Subcortical auditory nuclei were traditionally viewed as non-plastic in adulthood so that acoustic information could be stably conveyed to higher auditory areas. Studies in a variety of species, including humans, now suggest that prolonged acoustic training can drive long-lasting brainstem plasticity. The neurobiological mechanisms for such changes are not well ...
Barca Francesco F U.O. Chirurgia Oftalmica, Azienda Ospedaliero Universitaria Pisana (AOUP), Via Paradisa 2, 56124 Pisa, - - 2014
Silicone oils are important tools in vitreoretinal surgery because they have the ability to displace aqueous humor from the retinal surface, maintaining the adhesion between retina and retinal pigment epithelium. To understand this capability, it is important to know the silicone oil characteristics. Herein, we report first on the main ...
Hui Yuen Yung YY 1] Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei 106, Taiwan - - 2014
Nanodiamonds containing high density ensembles of negatively charged nitrogen-vacancy (NV(-)) centers are promising fluorescent biomarkers due to their excellent photostability and biocompatibility. The NV(-) centers in the particles have a fluorescence lifetime of up to 20 ns, which distinctly differs from those (<10 ns) of cell and tissue autofluorescence, making it possible ...
Parikh Ankit A Biopharmaceutics and Drug Delivery Lab, College of Pharmacy, 5968 College Street, P.O. Box 15000, Halifax, NS B3H 4R2, Canada. - - 2014
Chronic inflammation and infection of the nasal sinuses, also referred to as Chronic Rhinosinusitis (CRS), severely affects patients' quality of life. Adhesions, ostial stenosis, infection and inflammation relapses complicate chronic sinusitis treatment strategies. Drug-eluting stents, packings or implants have been suggested as reasonable alternatives for addressing these concerns. This article ...
de la Peña Paloma P Evolutionary Studies Institute, University of the Witwatersrand, Johannesburg, South - - 2014
The variability associated with Sibudu's Howiesons Poort Industry highlights the unpredictable trajectory of technology in the Middle Stone Age. We reach this conclusion through a study of the technology on quartz from one of the Howiesons Poort layers (Grey Sand) from Sibudu rock shelter. Quartz bifacial technology has previously been ...
Onoa Bibiana B California Institute for Quantitative Biosciences, University of California, Berkeley, California, United States of - - 2014
Photoautotrophic organisms efficiently regulate absorption of light energy to sustain photochemistry while promoting photoprotection. Photoprotection is achieved in part by triggering a series of dissipative processes termed non-photochemical quenching (NPQ), which depend on the re-organization of photosystem (PS) II supercomplexes in thylakoid membranes. Using atomic force microscopy, we characterized the ...
Favors Zachary Z Materials Science and Engineering Program, Department of Mechanical Engineering, University of California Riverside, CA 92521 - - 2014
Herein, porous nano-silicon has been synthesized via a highly scalable heat scavenger-assisted magnesiothermic reduction of beach sand. This environmentally benign, highly abundant, and low cost SiO2 source allows for production of nano-silicon at the industry level with excellent electrochemical performance as an anode material for Li-ion batteries. The addition of ...
Haubner Roland R 0000-0002-4665-7433 Department of Nuclear Medicine, Innsbruck Medical University, Anichstraße 35, 6020 Innsbruck, - - 2014
Noninvasive determination of integrin expression has become an interesting approach in nuclear medicine. Since the discovery of the first (18)F-labeled cyclic RGD peptide as radiotracer for imaging integrin α v β 3 expression in vivo, there have been carried out enormous efforts to develop RGD peptides for PET imaging. Moreover, ...
Re Dino D 0000-0001-8642-5007 Department of Oral Rehabilitation, Istituto Stomatologico Italiano, University of Milan, 20122 Milan, - - 2014
No- or minimal-preparation veneers associated with enamel preservation offer predictable results in esthetic dentistry; indirect additive anterior composite restorations represent a quick, minimally invasive, inexpensive, and repairable option for a smile enhancement treatment plan. Current laboratory techniques associated with a strict clinical protocol satisfy patients' restorative and esthetic needs. The ...
Quan Bo B Graduate School of Convergence Science and Technology, Seoul National University, Seoul 151-742, Republic of - - 2014
Solvothermal processes are considered efficient approaches for the gram-scale production of graphene. Further modification of graphene by chemical doping is an important approach to tailor its properties. In this work, we successfully synthesized sulfur-doped graphene by using a solvothermal method with dimethyl sulfoxide as a precursor, which is a common ...
Kefayati Sarah S Department of Physics and Astronomy, University of Western Ontario, London, ON, - - 2014
Atherosclerotic disease, and the subsequent complications of thrombosis and plaque rupture, has been associated with local shear stress. In the diseased carotid artery, local variations in shear stress are induced by various geometrical features of the stenotic plaque. Greater stenosis severity, plaque eccentricity (symmetry) and plaque ulceration have been associated ...
Batson Jennifer J School of Physiology and Pharmacology, University of Bristol, Bristol BS8 1TD, - - 2014
Metastatic prostate cancer cells display EphB receptor-mediated attraction when they contact stromal fibroblasts but EphA-driven repulsion when they contact one another. The impact of these 'social' interactions between cells during cancer cell invasion and the signalling mechanisms downstream of Eph receptors are unclear. Here we show that EphA receptors regulate ...
Mula Guido G Dipartimento di Fisica, Cittadella Universitaria di Monserrato, Università degli Studi di Cagliari, S.P. 8 km 0.7, Monserrato, Cagliari 09042, - - 2014
The results of an investigation on the Er doping of porous silicon are presented. Electrochemical impedance spectroscopy, optical reflectivity, and spatially resolved energy dispersive spectroscopy (EDS) coupled to scanning electron microscopy measurements were used to investigate on the transient during the first stages of constant current Er doping. Depending on ...
Harish Sivasankaran S Department of Mechanical Engineering, Kyushu University, 744 Motooka, Fukuoka 819-0395, - - 2014
We report a dramatic and irreversible reduction in the lattice thermal conductivity of bulk crystalline silicon when subjected to intense plastic strain under a pressure of 24 GPa using high-pressure torsion (HPT). Thermal conductivity of the HPT-processed samples were measured using picosecond time domain thermoreflectance. Thermal conductivity measurements show that the ...
Huang Shengli S Fujian Provincial Key Lab of Semiconductors and Applications, Department of Physics, Xiamen University, Xiamen, Fujian 361005, People's Republic of China ; State Key Lab of Silicon Materials, Zhejiang University, Hangzhou 310027, People's Republic of - - 2014
A rational approach for creating branched ZnO/Si nanowire arrays with hierarchical structure was developed based on a combination of three simple and cost-effective synthesis pathways. The crucial procedure included growth of crystalline Si nanowire arrays as backbones by chemical etching of Si substrates, deposition of ZnO thin film as a ...
Katsuno Makoto M Department of Neurosurgery, Abashiri Neurosurgical and Rehabilitation Hospital, Hokkaido, - - 2014
An anastomosis at the insular segment of the middle cerebral artery (M2) is often required in cerebral reconstruction with high- or low-flow bypass. It is necessary to create a shallow, wide, fixed, and bloodless anastomosis field to achieve a safe and quick anastomosis for low surgical morbidity. We describe a ...
Shatwell Tom T Department of Ecohydrology, Leibniz-Institute of Freshwater Ecology and Inland Fisheries (IGB), Berlin, - - 2014
In lakes, trophic change and climate change shift the relationship between nutrients and physical factors, like temperature and photoperiod, and interactions between these factors should affect the growth of phytoplankton species differently. We therefore determined the relationship between P-limited specific growth rates and P-quota (biovolume basis) of Stephanodiscus minutulus and ...
Algranti Eduardo E Fundação Jorge Duprat Figueiredo de Segurança e Medicina do Trabalho, Department of Medicine, São Paulo, Brazil, Head of the Department of Medicine, Fundação Jorge Duprat Figueiredo de Segurança e Medicina do Trabalho - FUNDACENTRO, Jorge Duprat Figueiredo Foundation for Occupational Safety and Medicine - São Paulo, - - 2014
Padmaraj Divya D Electrical and Computer Engineering Department, University of Houston, Houston, Texas, United States of America; Texas Center for Superconductivity, University of Houston, Houston, Texas, United States of - - 2014
A biological microelectromechanical system (BioMEMS) device was designed to study complementary mitochondrial parameters important in mitochondrial dysfunction studies. Mitochondrial dysfunction has been linked to many diseases, including diabetes, obesity, heart failure and aging, as these organelles play a critical role in energy generation, cell signaling and apoptosis. The synthesis of ...
Xue Yahui Y 1] Institute of Materials Research, Materials Mechanics, Helmholtz-Zentrum Geesthacht, D-21502 Geesthacht, Germany [2] State Key Laboratory for Turbulence and Complex Systems, Center for Applied Physics and Technology, Department of Mechanics and Engineering Science, College of Engineering, Peking University, Beijing 100871, - - 2014
Spontaneous imbibition enables the elegant propelling of nano-flows because of the dominance of capillarity at small length scales. The imbibition kinetics are, however, solely determined by the static host geometry, the capillarity, and the fluidity of the imbibed liquid. This makes active control particularly challenging. Here we show for aqueous ...
Johnson Jeremiah G JG Department of Microbiology and Immunology, University of Michigan Medical School, Ann Arbor, Michigan, - - 2014
Klebsiella pneumoniae is a significant cause of nosocomial infections, including ventilator-associated pneumonias and catheter-associated urinary tract infections. K. pneumoniae strain TOP52 #1721 (Top52) was isolated from a woman presenting with acute cystitis and subsequently characterized using various murine models of infection. Here we present the genome sequence of K. pneumoniae Top52.
Yoshii Hiroshi H Research Center for Radiation Emergency Medicine, National Institute of Radiological Science, Chiba, Chiba, - - 2014
Workers decommissioning the Fukushima-Daiichi nuclear power plant damaged from the Great East Japan Earthquake and resulting tsunami are at risk of injury with possible contamination from radioactive heavy atoms including actinides, such as plutonium. We propose a new methodology for on-site and rapid evaluation of heavy-atom contamination in wounds using ...
Fujimura Yoshinori Y Innovation Center for Medical Redox Navigation, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan. - - 2014
Understanding the spatial distribution of bioactive small molecules is indispensable for elucidating their biological or pharmaceutical roles. Mass spectrometry imaging (MSI) enables determination of the distribution of ionizable molecules present in tissue sections of whole-body or single heterogeneous organ samples by direct ionization and detection. This emerging technique is now ...
Suzukawa Keigo K Division of Otolaryngology, University of California, San Diego School of Medicine and VA Medical Center, La Jolla, California, United States of - - 2014
Otitis media is one of the most common pediatric infections. While it is usually treated without difficulty, up to 20% of children may progress to long-term complications that include hearing loss, impaired speech and language development, academic underachievement, and irreversible disease. Hyperplasia of middle ear mucosa contributes to the sequelae ...
Wu Jincheng J Department of Chemical and Biological Engineering, Tufts University, Medford, Massachusetts, United States of - - 2014
Stirred-suspension bioreactors are a promising modality for large-scale culture of 3D aggregates of pluripotent stem cells and their progeny. Yet, cells within these clusters experience limitations in the transfer of factors and particularly O2 which is characterized by low solubility in aqueous media. Cultured stem cells under different O2 levels ...
Mutsuzaki Hirotaka H Department of Orthopaedic Surgery, Ibaraki Prefectural University of Health Sciences, 4669-2 Ami Ami-machi, Inashiki-gun, Ibaraki 300-0394, Japan. - - 2014
The purpose of the present study was to fabricate fibroblast growth factor (FGF)-2-apatite composite layers on titanium (Ti) pins in one step at 25 °C using a supersaturated calcium phosphate (CaP) solution, and to evaluate the physicochemical characteristics and biological effects of the coated Ti pins compared with coated Ti ...
Nunes Allancer Dc AD Department of Physiological Sciences, Federal University of Goiás, Goiânia, - - 2014
Magnetic nanoparticles (MNPs) have been used for various biomedical applications. Importantly, manganese ferrite-based nanoparticles have useful magnetic resonance imaging characteristics and potential for hyperthermia treatment, but their effects in the cardiovascular system are poorly reported. Thus, the objectives of this study were to determine the cardiovascular effects of three different ...
Zheng Zhaoke Z School of Materials Science and Engineering, Nanyang Technological University, 639798, - - 2014
For conventional dye or quantum dot sensitized solar cells, which are fabricated using mesoporous films, the inefficient electron transport due to defects such as grain boundaries and surface traps is a major drawback. To simultaneously increase the carrier transport efficiency as well as the surface area, optimal-assembling of hierarchical nanostructures ...
Jiang Ying Y Department of Neurology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, - - 2014
Inflammation and apoptosis play critical roles in the acute progression of ischemic injury pathology. Emerging evidence indicates that vagus nerve stimulation (VNS) following focal cerebral ischemia and reperfusion (I/R) may be neuroprotective by limiting infarct size. However, the underlying molecular mechanisms remain unclear. In this study, we investigated whether the ...
Treloar Katrina K KK 1] Mathematical Sciences, Queensland University of Technology (QUT), Brisbane, Australia [2] Tissue Repair and Regeneration Program, Institute of Health and Biomedical Innovation, QUT, Brisbane, - - 2014
Spreading cell fronts are essential features of development, repair and disease processes. Many mathematical models used to describe the motion of cell fronts, such as Fisher's equation, invoke a mean-field assumption which implies that there is no spatial structure, such as cell clustering, present. Here, we examine the presence of ...
Kang Liane J LJ Division of Neonatology, Department of Pediatrics, University of Alberta, Edmonton, Canada; Neonatal Research Unit, Royal Alexandra Hospital, Alberta Health Services, Edmonton, - - 2014
If infants fail to initiate spontaneous breathing, resuscitation guidelines recommend respiratory support with positive pressure ventilation (PPV). The purpose of PPV is to establish functional residual capacity and deliver an adequate tidal volume (VT) to achieve gas exchange. The aim of our pilot study was to measure changes in exhaled ...
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