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Mon-Shu Ho, Chih-Pong Huang, Jyun-Hwei Tsai, Che-Fu Chou, Wen-Jay Lee
This paper reports an array-designed C84-embedded Si substrate fabricated using a controlled self-assembly method in an ultra-high vacuum chamber. The characteristics of the C84-embedded Si surface, such as atomic resolution topography, local electronic density of states, band gap energy, field emission properties, nanomechanical stiffness, and surface magnetism, were examined using a variety of surface analysis techniques under ultra, high vacuum (UHV) conditions as well as in an atmospheric system. Experimental results demonstrate the high uniformity of the C84-embedded Si surface fabricated using a controlled self-assembly nanotechnology mechanism, represents an important development in the application of field emission display (FED), optoelectronic device fabrication, MEMS cutting tools, and in efforts to find a suitable replacement for carbide semiconductors...
September 28, 2016: Journal of Visualized Experiments: JoVE
Shivanand Hegde, Martina Zimmermann, Martina Flöck, Rene Brunthaler, Joachim Spergser, Renate Rosengarten, Rohini Chopra-Dewasthaly
Mycoplasmas are amongst the most successful pathogens of both humans and animals yet the molecular basis of mycoplasma pathogenesis is poorly understood. This is partly due to the lack of classical virulence factors and little similarity to common bacterial pathogenic determinants. Using Mycoplasma agalactiae as a model we initiated research in this direction by screening a transposon mutant library in the natural sheep host using a negative selection method. Having successfully identified putative factors involved in the colonization of local infection and lymphogenic sites, the current study assessed mutants unable to spread systemically in sheep after experimental intramammary infection...
October 20, 2016: Veterinary Research
Wei Liu, Chang Hua Lin, Zheng Ke Wu, Guo Hua Liu, Hai Jie Yan, Hua Ming Yang, Hui Yi Cai
Objective: The net energy requirement for the maintenance (NEm) of broilers was determined using regression models by the indirect calorimetry method (ICM) or the comparative slaughter method (CSM). Methods: A 2×4 factorial arrangement of treatments including the evaluation method (ICM or CSM) and feed intake (25, 50, 75, or 100% of ad libitum recommended) was employed in this experiment. In the ICM, 96 male Arbor Acres (AA) birds aged d 15 were used with 4 birds per replicate and 6 replicates in each treatment...
October 19, 2016: Asian-Australasian Journal of Animal Sciences
Kari Branham, Hiroko Matsui, Pooja Biswas, Aditya A Guru, Michael Hicks, John J Suk, He Li, David Jakubosky, Tao Long, Amalio Telenti, Naoki Narai, John R Heckenlively, Kelly A Frazar, Paul A Sieving, Radha Ayyagari
While more than 250 genes are known to cause inherited retinal degenerations (IRD), nearly 40-50% of families have the genetic basis for their disease unknown. In this study we sought to identify the underlying cause of inherited retinal degeneration (IRD) in a family by whole genome sequence (WGS) analysis. Clinical characterization including standard ophthalmic examination, fundus photography, visual field testing, electroretinography, and review of medical and family history was performed. WGS was performed on affected and unaffected family members using Illumina HiSeq X10...
October 7, 2016: Physiological Genomics
Dogyeong Ha, Jisoo Hong, Heungjoo Shin, Taesung Kim
Micro-/nanofabrication-based lab-on-a-chip (LOC) technologies have recently been substantially advanced and have become widely used in various inter-/multidisciplinary research fields, including biological, (bio-)chemical, and biomedical fields. However, such hybrid-scale LOC devices are typically fabricated using microfabrication and nanofabrication processes in series, resulting in increased cost and time and low throughput issues. In this review, after briefly introducing the conventional micro-/nanofabrication technologies, we focus on unconventional micro-/nanofabrication technologies that allow us to produce either in situ micro-/nanoscale structures or master molds for additional replication processes to easily and conveniently create novel LOC devices with micro- or nanofluidic channel networks...
October 20, 2016: Lab on a Chip
Q N Zhang, S S Liao, K L Zhang
Founded by the Chinese Mass Education Movement (MEM) led by Dr.James Yen and Peking Union Medical College(PUMC), the Ting Hsien Experimental Project was a demonstration program for health service in a rural county. Through a 8-year endeavor (1929-1937) and using a bottom-up approach, Dr. Chen Chih-chien and Dr.YaoHsun-yuan took the leadership of a group of dedicated PUMC graduates and students, and created a three-level(village-district-county) system to deliver both curative as well as preventive medical service for rural population...
July 28, 2016: Zhonghua Yi Shi za Zhi, Chinese Journal of Medical History
Francesc Torres, Arantxa Uranga, Martí Riverola, Guillermo Sobreviela, Núria Barniol
Micro and nano electromechanical resonators have been widely used as single or multiple-mass detection sensors. Smaller devices with higher resonance frequencies and lower masses offer higher mass responsivities but suffer from lower frequency stability. Synchronization phenomena in multiple MEMS resonators have become an important issue because they allow frequency stability improvement, thereby preserving mass responsivity. The authors present an array of five cantilevers (CMOS-MEMS system) that are forced to vibrate synchronously to enhance their frequency stability...
October 13, 2016: Sensors
Alexander L Weldon, Kedar Joshi, Alexander F Routh, James F Gilchrist
Rapid convective deposition is used to assemble nanoparticle coatings from suspension, with controllable thickness. Varying film thickness generates stress-induced linear cracks with highly monodisperse spacing. Film thickness is controlled through mechanical means, suspension volume fraction, and the use of applied thermal gradients. These cracks extend in the deposition direction, and a uniform crack spacing from 2 to 160μm is observed. The nanoparticle film thickness is the relevant length scale for hydrodynamic flow, and films will crack with this spacing, in a characteristic manner to minimize the system energy and capillary stresses...
September 30, 2016: Journal of Colloid and Interface Science
Tereza Touskova, Magda Vytrisalova, Vladimir Palicka, Tereza Hendrychova, Yang-Ti Chen, Leos Fuksa
Background: Osteoporosis is a chronic disease and adherence can fluctuate over time. Therefore, longer observation is necessary to investigate the stability of patients' adherence. The study aim was to compare the overall adherence (OA) to supplementation with the fixed combination of calcium and vitamin D (Ca/D) in postmenopausal women at baseline and after 1 year, and to evaluate the fluctuation of the OA in individual months. Furthermore, we studied whether adherence is influenced by signing of informed consent and routine medical check-up...
2016: Frontiers in Pharmacology
David S Geller, Jonathan Morris, Ekaterina Revskaya, Mani Kahn, Wendong Zhang, Sajida Piperdi, Amy Park, Pratistha Koirala, Hillary Guzik, Charles Hall, Bang Hoang, Rui Yang, Michael Roth, Jonathan Gill, Richard Gorlick, Ekaterina Dadachova
INTRODUCTION: Osteosarcoma overall survival has plateaued around 70%, without meaningful improvements in over 30years. Outcomes for patients with overt metastatic disease at presentation or who relapse are dismal. In this study we investigated a novel osteosarcoma therapy utilizing radioimmunotherapy (RIT) targeted to IGF2R, which is widely expressed in OS. METHODS: Binding efficiency of the Rhenium-188((188)Re)-labeled IGF2R-specific monoclonal antibody (mAb) to IGF2R on OS17 OS cells was assessed with Scatchard plot analysis...
July 30, 2016: Nuclear Medicine and Biology
M-N Babinet, C Rigard, É Peyroux, A-R Dragomir, I Plotton, H Lejeune, C Demily
INTRODUCTION: The Klinefelter syndrome (KS) is a genetic condition characterized by an X supernumerary sex chromosome in males. The syndrome is frequently associated with cognitive impairment. Indeed, the different areas of the executive sphere can be affected such as inhibition, cognitive flexibility but also attentional and visual-spatial domain. Social cognition disorders, predominantly on emotional recognition processes, have also been documented. In addition, the syndrome may be associated with psychiatric symptoms...
October 12, 2016: L'Encéphale
Weijian Li, Haojie Ji, Fengying Li, Ping Li, Yuchi Zhang, Xinyu Li
BACKGROUND: Like adults, children need to allocate study time and endeavour optimally in order to enhance learning effectiveness. AIMS: The aim of this study was to investigate the development of shifting from habitual to agenda-based processes on study decisions. SAMPLE: The participants were 309 children in the second, fourth, and sixth grades. METHODS: We adopted the research paradigm proposed by Ariel and Dunlosky (, Mem...
October 14, 2016: British Journal of Educational Psychology
James J Malone, Ric Lovell, Matthew C Varley, Aaron J Coutts
Athlete tracking devices that include global positioning system (GPS) and micro electrical mechanical system (MEMS) components are now commonplace in sport research and practice. These devices provide large amounts of data that are used to inform decision-making on athlete training and performance. However, the data obtained from these devices are often provided without clear explanation of how these metrics are obtained. At present, there is no clear consensus regarding how these data should be handled and reported in a sport context...
October 13, 2016: International Journal of Sports Physiology and Performance
Alberto Izquierdo, Juan José Villacorta, Lara Del Val Puente, Luis Suárez
This paper proposes a scalable and multi-platform framework for signal acquisition and processing, which allows for the generation of acoustic images using planar arrays of MEMS (Micro-Electro-Mechanical Systems) microphones with low development and deployment costs. Acoustic characterization of MEMS sensors was performed, and the beam pattern of a module, based on an 8 × 8 planar array and of several clusters of modules, was obtained. A flexible framework, formed by an FPGA, an embedded processor, a computer desktop, and a graphic processing unit, was defined...
October 11, 2016: Sensors
Marie Geurten, Steve Majerus, Caroline Lejeune, Corinne Catale
We present a new measure of everyday memory, the Questionnaire of Memory (Q-MEM), which is specifically adapted for the ecological assessment of memory disorders in school-age children and constructed with four sections tapping effortful/intentional learning, automatic/procedural learning, prospective memory/organization, and working memory. Confirmatory Factor Analyses supported the Q-MEM's four-factor structure in 700 five-to twelve-year-old children. The analyses also revealed a good internal reliability and a good test-retest fidelity...
October 11, 2016: Applied Neuropsychology. Child
C N Berger, M Dirschka, A Vijayaraghavan
The fabrication of arrays of ultra-thin conductive membranes remains a major challenge in realising large-scale micro/nano-electromechanical systems (MEMS/NEMS), since processing-stress and stiction issues limit the precision and yield in assembling suspended structures. We present the fabrication and mechanical characterisation of a suspended graphene-polymer heterostructure membrane that aims to tackle the prevailing challenge of constructing high yield membranes with minimal compromise to the mechanical properties of graphene...
October 11, 2016: Nanoscale
Adriana Hellmeister de Campos Nogueira, Eliana De Stefano, Maira de Souza Nunes Martins, Liria Hiromi Okuda, Michele Dos Santos Lima, Thais da Silva Garcia, Otto Heinz Hellwig, José Eduardo Alves de Lima, Giovanni Savini, Edviges Maristela Pituco
Bluetongue (BT) is considered endemic in several regions of Brazil. The State of Sao Paulo was divided into 7 cattle production regions (circuits) according the different systems of breeding, operational and logistical capacity of the state veterinary service. At least 1 animal from each property (a total of 1,716 farms) was tested by competitive ELISA for the presence of antibodies against BTV. Sero‑positive sera were subsequently also tested by virus neutralization tests (VNT) using serial dilutions from 1:10 (cutoff) up to 1:640 (in MEM)...
September 30, 2016: Veterinaria Italiana
Nader I Al-Dewik, Hisham M Morsi, Muthanna M Samara, Rola S Ghasoub, Cinquea C Gnanam, Subi K Bhaskaran, Abdulqadir J Nashwan, Rana M Al-Jurf, Mohamed A Ismail, Mohammed M AlSharshani, Ali A AlSayab, Tawfeg I Ben-Omran, Rani B Khatib, Mohamed A Yassin
BACKGROUND: Despite the revolutionary success of introducing tyrosine kinase inhibitors (TKIs), such as imatinib mesylate (IM), for treating chronic myeloid leukemia (CML), a substantial proportion of patients' treatments fail. AIM: This study investigates the correlation between patient adherence and failure of TKIs' treatment in a follow-up study. METHODS: This is a follow-up study of a new cohort of CML patients. Adherence to IM is assessed using the Medication Event Monitoring System (MEMS 6 TrackCap, AARDEX Ltd)...
2016: Clinical Medicine Insights. Oncology
Junyi Shang, Jing Yan, Zhixing Zhang, Xian Huang, Panita Maturavongsadit, Bing Song, Yuan Jia, Tieying Ma, Dachao Li, Kexin Xu, Qian Wang, Qiao Lin
We present a hydrogel-based affinity microsensor for continuous glucose measurements. The microsensor is based on microelectromechanical systems (MEMS) technology, and incorporates a synthetic hydrogel that is attached to the device surface via in situ polymerization. Glucose molecules that diffuses into and out of the device binds reversibly with boronic acid groups in the hydrogel via affinity binding, and causes changes in the dielectric properties of the hydrogel, which can be measured using a MEMS capacitive transducer to determine the glucose concentration...
December 2016: Sensors and Actuators. B, Chemical
Hang Xu, Damiano Pasini
The coefficient of thermal expansion (CTE) of architected materials, as opposed to that of conventional solids, can be tuned to zero by intentionally altering the geometry of their structural layout. Existing material architectures, however, achieve CTE tunability only with a sacrifice in structural efficiency, i.e. a drop in both their stiffness to mass ratio and strength to mass ratio. In this work, we elucidate how to resolve the trade-off between CTE tunability and structural efficiency and present a lightweight bi-material architecture that not only is stiffer and stronger than other 3D architected materials, but also has a highly tunable CTE...
October 10, 2016: Scientific Reports
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