keyword
MENU ▼
Read by QxMD icon Read
search

Mems

keyword
https://www.readbyqxmd.com/read/29449140/effectiveness-of-a-multicomponent-self-management-intervention-for-adults-with-epilepsy-zmile-study-a-randomized-controlled-trial
#1
Loes A M Leenen, Ben F M Wijnen, Alfons G H Kessels, HoiYau Chan, Reina J A de Kinderen, Silvia M A A Evers, Caroline M van Heugten, Marian H J M Majoie
BACKGROUND: The objective of the ZMILE study was to compare the effectiveness of a multicomponent self-management intervention (MCI) with care as usual (CAU) in adult patients with epilepsy (PWE) over a six-month period. METHODS: Participants (PWE & relative) were randomized into intervention or CAU groups. Self-report questionnaires were used to measure disease-specific self-efficacy as the primary outcome measure and general self-efficacy, adherence, seizure severity, emotional functioning, quality of life, proactive coping, and side-effects of antiepileptic drugs (AED) as secondary outcome measures...
February 12, 2018: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/29447194/vitro-culture-of-axe-head-glochidia-in-pink-heelsplitter-potamilus-alatus-and-mechanism-of-its-high-host-specialists
#2
Hai Bo Wen, Wu Jin, Xue Yan Ma, Bing Qing Zheng, Pao Xu, Liang Xu, Dan Hua, Xin Hua Yuan, Ruo Bo Gu
The basal media M199 or MEM was utilized in the classical method of vitro culture of glochidia where 1-5% CO2 was required to maintain stable physiological pH for completion of non-parasitic metamorphosis. The classical method encounters a great challenge to those glochidia which undergo development of visceral tissue but significantly increase in size during metamorphosis. The improved in vitro culture techniques and classical methods were firstly compared for non-parasitic metamorphosis and development of glochidia in pink heelsplitter...
2018: PloS One
https://www.readbyqxmd.com/read/29443918/error-modelling-for-multi-sensor-measurements-in-infrastructure-free-indoor-navigation
#3
Laura Ruotsalainen, Martti Kirkko-Jaakkola, Jesperi Rantanen, Maija Mäkelä
The long-term objective of our research is to develop a method for infrastructure-free simultaneous localization and mapping (SLAM) and context recognition for tactical situational awareness. Localization will be realized by propagating motion measurements obtained using a monocular camera, a foot-mounted Inertial Measurement Unit (IMU), sonar, and a barometer. Due to the size and weight requirements set by tactical applications, Micro-Electro-Mechanical (MEMS) sensors will be used. However, MEMS sensors suffer from biases and drift errors that may substantially decrease the position accuracy...
February 14, 2018: Sensors
https://www.readbyqxmd.com/read/29443495/dynamic-sliding-enhancement-on-friction-and-adhesion-of-graphene-graphene-oxide-and-fluorinated-graphene
#4
Xingzhong Zeng, Yitian Peng, Mengci Yu, Haojie Lang, Xing'an Cao, Kun Zou
Graphene and functionalized graphene are promising candidates as ultrathin solid lubricants to deal with the adhesion and friction in micro and nanoelectromechanical systems (MEMS/NEMS). Here, the dynamic friction and adhesion characteristics of pristine graphene (PG), graphene oxide (GO) and fluorinated graphene (FG) were comparatively studied using atomic force microscopy (AFM). The friction as a function of load shows nonlinear characteristic on GO with strong adhesion and linear characteristic on PG and FG with relatively weak adhesions...
February 14, 2018: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29443068/design-and-characterization-methodology-for-efficient-wide-range-tunable-mems-filters
#5
Hasan Goktas
Here, we demonstrate the advantages of the laser Doppler vibrometer (LDV) over conventional techniques (the network analyzer), as well as the techniques to create an application-based microelectromechanical systems (MEMS) filter and how to use it efficiently (i.e., tuning the tuning-capability and avoiding both failure and stiction). LDV enables crucial measurements that are impossible with the network analyzer, such as higher mode detection (highly sensitive biosensor application) and resonance measurement for very small devices (fast prototyping)...
February 4, 2018: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29434938/genetic-characterization-and-in-vitro-activity-of-antimicrobial-combinations-of-multidrug-resistant-acinetobacter-baumannii-from-a-general-hospital-in-china
#6
Fang Chen, Ling Wang, Min Wang, Yixin Xie, Xiaomeng Xia, Xianping Li, Yanhua Liu, Wei Cao, Tingting Zhang, Pengling Li, Min Yang
The present study aimed to develop a rational therapy based on the genetic epidemiology, molecular mechanism evaluation and in vitro antibiotic combinations activity in multidrug-resistant Acinetobacter baumannii (MDRAB). MDRAB was screened by the Kirby-Bauer method. The random amplified polymorphic DNA technique was used to establish genetic fingerprinting, and a series of resistance genes were detected by polymerase chain reaction. Antimicrobial agents including amikacin (AK), cefoperazone/sulbactam (SCF I/II), meropenem (MEM), minocycline (MINO) and ciprofloxacin (CIP) were used to determine the minimum inhibitory concentrations (MICs) and interactions between antibiotics by the broth microdilution method and chequerboard assays...
February 2018: Oncology Letters
https://www.readbyqxmd.com/read/29432471/in-vitro-mouse-spermatogenesis-with-an-organ-culture-method-in-chemically-defined-medium
#7
Hiroyuki Sanjo, Mitsuru Komeya, Takuya Sato, Takeru Abe, Kumiko Katagiri, Hiroyuki Yamanaka, Yoko Ino, Noriaki Arakawa, Hisashi Hirano, Tatsuma Yao, Yuta Asayama, Akio Matsuhisa, Masahiro Yao, Takehiko Ogawa
We previously reported the successful induction and completion of mouse spermatogenesis by culturing neonatal testis tissues. The culture medium consisted of α-minimum essential medium (α-MEM), supplemented with Knockout serum replacement (KSR) or AlbuMAX, neither of which were defined chemically. In this study, we formulated a chemically defined medium (CDM) that can induce mouse spermatogenesis under organ culture conditions. It was found that bovine serum albumin (BSA) purified through three different procedures had different effects on spermatogenesis...
2018: PloS One
https://www.readbyqxmd.com/read/29429909/adherence-to-antiepileptic-drugs-in-adolescents-with-epilepsy
#8
Aimee W Smith, Constance A Mara, Avani C Modi
INTRODUCTION: The aims of the current study were to identify patterns and predictors of adherence in adolescents with epilepsy over one year, as well as its impact on seizures and health-related quality of life (HRQOL). METHODS: Forty-eight adolescents with epilepsy (Mage=14.8+1.5, 69% female, 73% White: NonHispanic) and their caregivers completed questionnaires assessing demographics, epilepsy knowledge, side effects, adherence barriers, family functioning, and HRQOL at quarterly clinic visits over one year...
February 8, 2018: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/29425954/slit-pores-preferred-over-cylindrical-pores-for-high-selectivity-in-biomolecular-filtration
#9
Benjamin J Feinberg, Jeff C Hsiao, Jaehyun Park, Andrew L Zydney, William H Fissell, Shuvo Roy
Microelectromechanical systems (MEMS) have enabled the fabrication of silicon nanopore membranes (SNM) with uniform non-overlapping "slit shaped" pores. The application of SNM has been suggested for high selectivity of biomolecules in a variety of medical filtration applications. The aim of this study was to rigorously quantify the differences in sieving between slit pore SNM and more commonly modeled cylindrical pore membranes, including effects of the extended Derjaguin, Landau, Verwey, and Overbeek (XDLVO) interactions...
December 20, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/29425858/an-electrochemical-immunosensor-based-on-a-3d-carbon-system-consisting-of-a-suspended-mesh-and-substrate-bound-interdigitated-array-nanoelectrodes-for-sensitive-cardiac-biomarker-detection
#10
Deepti Sharma, Jongmin Lee, Heungjoo Shin
We developed an electrochemical redox cycling-based immunosensor using a 3D carbon system consisting of a suspended mesh and substrate-bound interdigitated array (IDA) nanoelectrodes. The carbon structures were fabricated using a simple, cost-effective, and reproducible microfabrication technology known as carbon microelectromechanical systems (C-MEMS). We demonstrated that the 3D sub-micrometer-sized mesh architecture and selective modification of the suspended mesh facilitated the efficient production of large quantities of electrochemical redox species...
February 3, 2018: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/29419765/h%C3%A2-robust-control-of-a-large-piston-mems-micromirror-for-compact-fourier-transform-spectrometer-systems
#11
Huipeng Chen, Mengyuan Li, Yi Zhang, Huikai Xie, Chang Chen, Zhangming Peng, Shaohui Su
Incorporating linear-scanning micro-electro-mechanical systems (MEMS) micromirrors into Fourier transform spectral acquisition systems can greatly reduce the size of the spectrometer equipment, making portable Fourier transform spectrometers (FTS) possible. How to minimize the tilting of the MEMS mirror plate during its large linear scan is a major problem in this application. In this work, an FTS system has been constructed based on a biaxial MEMS micromirror with a large-piston displacement of 180 μm, and a biaxial H∞ robust controller is designed...
February 8, 2018: Sensors
https://www.readbyqxmd.com/read/29417780/-subculture-cryopreservation-and-recovery-of-osteoclasts
#12
Suo-Jing Yu, Cheng-Liang Wu, Hong-Ting Jin, Xue-Qin Hu, Lu-Wei Xiao, Pei-Jian Tong
OBJECTIVE: To explore the feasibility of passage, cryopreservation, and recovery of osteoclasts in order to develop new techniques facilitating osteoclast research. METHODS: Passage of osteoclasts: adult male SD rat(SPF grade, weight of 250 g) was sacrificed and the abdominal aorta was exposed for blood draw. Monocytes isolated from peripheral circulation was treated with RANKL and M-CSF for 2 weeks. After formation of osteoclasts, they were trypsinized with pipetting, centrifuged, re-suspended with α-MEM containing RANKL and M-CSF, and cultured in 6 well-plates and 35 mm culture dishes...
May 25, 2017: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
https://www.readbyqxmd.com/read/29413589/chitosan-nanoencapsulation-of-flavonoids-enhances-their-quorum-sensing-and-biofilm-formation-inhibitory-activities-against-an-e-coli-top-10-biosensor
#13
E O Omwenga, A Hensel, A Shitandi, F M Goycoolea
Phytochemicals have been found to be promising alternatives to conventional antibiotic therapies for the control of bacterial infections, as they may entail less selective pressure and hence reduce the development of resistance. This study involved examining the inhibition of biofilm formation and of quorum sensing (QS), and the cytotoxicity on mammalian cells of two flavonoids, quercetin and baicalein, in free form and associated into chitosan-based nanocapsules. This was done by use of a transformed E. coli Top 10 biosensor strain, while the cytotoxicity was evaluated on MDCK-C7 cells...
January 31, 2018: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/29406312/transmission-reflection-behaviors-of-surface-plasmons-at-an-interface-between-two-plasmonic-systems
#14
Fuxin Guan, Shulin Sun, Shaojie Ma, Zhening Fang, Baocheng Zhu, Xin Li, Qiong He, Shiyi Xiao, Lei Zhou
Although surface plasmon polaritons (SPPs) have been intensively studied in past years, the transmission/reflection properties of SPPs at an interface between two plasmonic media are still not fully understood. In this article, we employ a mode expansion method (MEM) to systematically study such a problem based on a model system jointing two superlattices, each consisting of a periodic stacking of dielectric and plasmonic slabs with different material properties. Such a generic model can represent two widely used plasmonic structures (i...
February 6, 2018: Journal of Physics. Condensed Matter: An Institute of Physics Journal
https://www.readbyqxmd.com/read/29404958/peripheral-and-central-effects-of-memantine-in-a-mixed-preclinical-mice-model-of-obesity-and-familial-alzheimer-s-disease
#15
Miren Ettcheto, Elena Sánchez-López, Yaiza Gómez-Mínguez, Henrry Cabrera, Oriol Busquets, Carlos Beas-Zarate, Maria Luisa García, Eva Carro, Gemma Casadesus, Carme Auladell, Manuel Vázquez Carrera, Jaume Folch, Antoni Camins
There is growing evidence that obesity associated with type 2 diabetes mellitus (T2DM) and aging are risk factors for the development of Alzheimer's disease (AD). However, the molecular mechanisms through which obesity interacts with β-amyloid (Aβ) to promote cognitive decline remains poorly understood. Memantine (MEM), a N-methyl-D-aspartate receptor antagonist, is currently used for the treatment of AD. Nonetheless, few studies have reported its effects on genetic preclinical models of this neurodegenerative disease exacerbated with high-fat diet (HFD)-induced obesity...
February 5, 2018: Molecular Neurobiology
https://www.readbyqxmd.com/read/29401850/quantitative-thermal-imaging-using-single-pixel-si-apd-and-mems-mirror
#16
Matthew J Hobbs, Matthew P Grainger, Chengxi Zhu, Chee Hing Tan, Jonathan R Willmott
Accurate quantitative temperature measurements are difficult to achieve using focal-plane array sensors. This is due to reflections inside the instrument and the difficulty of calibrating a matrix of pixels as identical radiation thermometers. Size-of-source effect (SSE), which is the dependence of an infrared temperature measurement on the area surrounding the target area, is a major contributor to this problem and cannot be reduced using glare stops. Measurements are affected by power received from outside the field-of-view (FOV), leading to increased measurement uncertainty...
February 5, 2018: Optics Express
https://www.readbyqxmd.com/read/29393916/design-optimization-and-fabrication-of-a-novel-structural-soi-piezoresistive-pressure-sensor-with-high-accuracy
#17
Chuang Li, Francisco Cordovilla, R Jagdheesh, José L Ocaña
This paper presents a novel structural piezoresistive pressure sensor with four-grooved membrane combined with rood beam to measure low pressure. In this investigation, the design, optimization, fabrication, and measurements of the sensor are involved. By analyzing the stress distribution and deflection of sensitive elements using finite element method, a novel structure featuring high concentrated stress profile (HCSP) and locally stiffened membrane (LSM) is built. Curve fittings of the mechanical stress and deflection based on FEM simulation results are performed to establish the relationship between mechanical performance and structure dimension...
February 2, 2018: Sensors
https://www.readbyqxmd.com/read/29390673/vision-sensor-and-dual-mems-gyroscope-integrated-system-for-attitude-determination-on-moving-base
#18
Xiaoting Guo, Changku Sun, Peng Wang, Lu Huang
To determine the relative attitude between the objects on a moving base and the base reference system by a MEMS (Micro-Electro-Mechanical Systems) gyroscope, the motion information of the base is redundant, which must be removed from the gyroscope. Our strategy is to add an auxiliary gyroscope attached to the reference system. The master gyroscope is to sense the total motion, and the auxiliary gyroscope is to sense the motion of the moving base. By a generalized difference method, relative attitude in a non-inertial frame can be determined by dual gyroscopes...
January 2018: Review of Scientific Instruments
https://www.readbyqxmd.com/read/29389853/prolonged-corrosion-stability-of-a-microchip-sensor-implant-during-in-vivo-exposure
#19
Paul Glogener, Michael Krause, Jens Katzer, Markus A Schubert, Mario Birkholz, Olaf Bellmann, Claudia Kröger-Koch, Harald M Hammon, Cornelia C Metges, Christine Welsch, Roman Ruff, Klaus P Hoffmann
A microelectronic biosensor was subjected to in vivo exposure by implanting it in the vicinity of m. trapezii (Trapezius muscle) from cattle. The implant is intended for the continuous monitoring of glucose levels, and the study aimed at evaluating the biostability of exposed semiconductor surfaces. The sensor chip was a microelectromechanical system (MEMS) prepared using 0.25 µm complementary metal-oxide-semiconductor CMOS/BiCMOS technology. Sensing is based on the principle of affinity viscometry with a sensoric assay, which is separated by a semipermeable membrane from the tissue...
February 1, 2018: Biosensors
https://www.readbyqxmd.com/read/29388919/ultra-thin-alumina-and-silicon-nitride-mems-fabricated-membranes-for-the-electron-multiplication
#20
Violeta Prodanović, Hong Wah Chan, W A van der Graaf, Lina Sarro
In this paper we demonstrate the fabrication of large arrays of ultrathin freestanding membranes (tynodes) for application in a Timed Photon Counter (TiPC), a novel photomultiplier for single electron detection. Low pressure chemical vapor deposited (LPCVD) silicon nitride (SixNy) and atomic layer deposited (ALD) alumina (Al2O3) with thicknesses down to only 5 nm are employed for the membrane fabrication. Detailed characterization of structural, mechanical and chemical properties of the utilized films is carried out for different process conditions...
February 1, 2018: Nanotechnology
keyword
keyword
23705
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"