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Ryenne N Ogburn, Lorrain Jin, He Meng, Michael C Fitzgerald
The proteins in an MCF-7 cell line were probed for tamoxifen (TAM) and n-desmethyl tamoxifen (NDT) induced stability changes using the Stability of Proteins from Rates of Oxidation (SPROX) technique in combination with two different quantitative proteomics strategies, including one based on SILAC and one based on isobaric mass tags. Over 1000 proteins were assayed for TAM- and NDT- induced protein stability changes, and a total of 163 and 200 protein hits were identified in the TAM and NDT studies, respectively...
September 19, 2017: Journal of Proteome Research
Sejoon Lee, Youngmin Lee, Changmin Kim
High-performance negative-differential transconductance (NDT) devices are fabricated in the form of a gated p(+)-i-n(+) Si ultra-thin body transistor. The devices clearly display a Λ-shape transfer characteristic (i.e., Λ-NDT peak) at room temperature, and the NDT behavior is fully based on the gate-modulation of the electrostatic junction characteristics along source-channel-drain. The largest peak-to-valley current ratio of the Λ-NDT peak is greater than 10(4), the smallest full-width at half-maximum is smaller than 170 mV, and the best swing-slope at the Λ-NDT peak region is ~70 mV/dec...
September 11, 2017: Scientific Reports
Bülent Elbasan, Kamile Uzun Akkaya, Mufit Akyüz, Deran Oskay
BACKGROUND: Neurodevelopmental treatment (NDT), neuromuscular electrical stimulation (NMES), and Kinesio Taping (KT) applications are separately used to improve postural control and sitting balance in children with cerebral palsy (CP). OBJECTIVE: The aim of this study is to examine the combined effect of NDT, NMES and KT applications on postural control and sitting balance in children with CP. METHODS: Forty five children, in 3 groups, between the ages 5-12 years were included in the study...
August 21, 2017: Journal of Back and Musculoskeletal Rehabilitation
Junkyeong Kim, Ju-Won Kim, Chaggil Lee, Seunghee Park
The tensile force of pre-stressed concrete (PSC) girders is the most important factor for managing the stability of PSC bridges. The tensile force is induced using pre-stressing (PS) tendons of a PSC girder. Because the PS tendons are located inside of the PSC girder, the tensile force cannot be measured after construction using conventional NDT (non-destructive testing) methods. To monitor the induced tensile force of a PSC girder, an embedded EM (elasto-magnetic) sensor was proposed in this study. The PS tendons are made of carbon steel, a ferromagnetic material...
August 30, 2017: Sensors
Mohammed Naidjate, Bachir Helifa, Mouloud Feliachi, Iben-Khaldoun Lefkaier, Henning Heuer, Martin Schulze
This paper propose a new concept of an eddy current (EC) multi-element sensor for the characterization of carbon fiber-reinforced polymers (CFRP) to evaluate the orientations of plies in CFRP and the order of their stacking. The main advantage of the new sensors is the flexible parametrization by electronical switching that reduces the effort for mechanical manipulation. The sensor response was calculated and proved by 3D finite element (FE) modeling. This sensor is dedicated to nondestructive testing (NDT) and can be an alternative for conventional mechanical rotating and rectangular sensors...
August 31, 2017: Sensors
Jaechan Park, Sanggil Lee, Chulyong Park, Huisu Eom
BACKGROUND: Interest in radiation-related health problems has been growing with the increase in the number of workers in radiation-related jobs. Although an occupational level of radiation exposure would not likely cause azoospermia, several studies have reported the relation between radiation exposure and azoospermia after accidental or therapeutic radiation exposure. We describe a case of azoospermia in a non-destructive testing (NDT) worker exposed to radiation and discuss the problems of the related monitoring system...
2017: Annals of Occupational and Environmental Medicine
Kate Stevens, Denis Fouque
No abstract text is available yet for this article.
August 1, 2017: Nephrology, Dialysis, Transplantation
Carla C C R de Carvalho, Patrick L Inácio, Rosa M Miranda, Telmo G Santos
In an increasingly miniaturised technological world, non-destructive testing (NDT) methodologies able to detect defects at the micro scale are necessary to prevent failures. Although several existing methods allow the detection of defects at that scale, their application may be hindered by the small size of the samples to examine. In this study, the application of bacterial cells to help the detection of fissures, cracks, and voids on the surface of metals is proposed. The application of magnetic and electric fields after deposition of the cells ensured the distribution of the cells over the entire surfaces and helped the penetration of the cells inside the defects...
July 12, 2017: Materials
Javad Rostami, Peter W T Tse, Zhou Fang
Ultrasonic guided wave is an effective tool for structural health monitoring of structures for detecting defects. In practice, guided wave signals are dispersive and contain multiple modes and noise. In the presence of overlapped wave-packets/modes and noise together with dispersion, extracting meaningful information from these signals is a challenging task. Handling such challenge requires an advanced signal processing tool. The aim of this study is to develop an effective and robust signal processing tool to deal with the complexity of guided wave signals for non-destructive testing (NDT) purpose...
June 6, 2017: Materials
Ashok Aenumulapalli, Manoj Mohan Kulkarni, Achleshwar Ramnarain Gandotra
INTRODUCTION: Flat foot (pes planus) is a commonly observed disorder in clinical practice. The height of Medial Longitudinal Arch (MLA) determines the degree of pes planus. Majority of the previous studies on prevalence of flexible flat foot were done among children. AIM: The present study was undertaken to determine the prevalence of flexible flat foot among 18-21-year-old Indian adults using Navicular Drop Test (NDT) which is regarded as reliable and valid method to characterise MLA...
June 2017: Journal of Clinical and Diagnostic Research: JCDR
Dong-Sik Oh, Jong-Duk Choi
[Purpose] The present study was conducted to evaluate the effect of motor imagery training for trunk movements on trunk muscle control and proprioception in stroke patients. [Subjects and Methods] A total of 12 study subjects were randomly assigned to the experimental group (a motor imagery training group) and the control group (a neurodevelopmental treatment, NDT) group. The two groups were treated five times (30 minutes each time) per week for 4 weeks. The experimental group underwent imagery training for 10 minutes and trunk control centered NDT for 20 minutes and the control group underwent only trunk control centered NDT for 30 minutes...
July 2017: Journal of Physical Therapy Science
Na Cheng, Changqiao Zhang, Yongjun Liu
Donor-acceptor conjugated polymers have been successfully applied in bulk heterojunction solar cell devices. Tuning their donor and acceptor units allows the design of new polymers with desired electronic and optical properties. Here, to screen new candidate polymers based on a newly synthesized donor unit, dithieo[2,3-d:2',3'-d']naphtho[1,2-b:3,4-b']dithiophene (NDT), a series of model polymers with different acceptor units were designed and denoted NDT-A0 to NDT-A12, and the structures and optical properties of those polymers were investigated using DFT and TDDFT calculations...
August 2017: Journal of Molecular Modeling
Jaewoo Shim, Seo-Hyeon Jo, Minwoo Kim, Young Jae Song, Jeehwan Kim, Jin-Hong Park
Multivalued logic (MVL) devices/circuits have received considerable attention because the binary logic used in current Si complementary metal-oxide-semiconductor (CMOS) technology cannot handle the predicted information throughputs and energy demands of the future. To realize MVL, the conventional transistor platform needs to be redesigned to have two or more distinctive threshold voltages (VTHs). Here, we report a finding: the photoinduced drain current in graphene/WSe2 heterojunction transistors unusually decreases with increasing gate voltage under illumination, which we refer to as the light-induced negative differential transconductance (L-NDT) phenomenon...
June 27, 2017: ACS Nano
Changgil Lee, Aoqi Zhang, Byoungjoon Yu, Seunghee Park
In this study, a non-contact laser ultrasonic propagation imaging technique was applied to detect the damage of plate-like structures. Lamb waves were generated by an Nd:YAG pulse laser system, while a galvanometer-based laser scanner was used to scan the preliminarily designated area. The signals of the structural responses were measured using a piezoelectric sensor attached on the front or back side of the plates. The obtained responses were analyzed by calculating the root mean square (RMS) values to achieve the visualization of structural defects such as crack, corrosion, and so on...
May 26, 2017: Sensors
Hyun S Yoon, Joshua Sung H You
BACKGROUND: Postural core instability is associated with poor dynamic balance and a high risk of serious falls. Both neurodevelopmental treatment (NDT) and dynamic neuromuscular stabilization (DNS) core stabilization exercises have been used to improve core stability, but the outcomes of these treatments remain unclear. OBJECTIVE: This study was undertaken to examine the therapeutic effects of NDT and DNS core stabilization exercises on muscular activity, core stability, and core muscle thickness...
July 20, 2017: Technology and Health Care: Official Journal of the European Society for Engineering and Medicine
Anh-Vu Ngo, Stephen Done, Randolph Otto, Seth Friedman, A Luana Stanescu
BACKGROUND: Nasoduodenal tube (NDT) placement is typically performed at the bedside and two-view abdominal radiographs are usually used to confirm tube position. Anecdotally, in most instances the lateral view is unnecessary and utilizes more than twice the radiation than an anteroposterior (AP) view alone. OBJECTIVE: We hypothesize that NDT location can be determined using only the AP view, with the NDT position determined on two views utilized as the gold standard...
May 31, 2017: Pediatric Radiology
V Y Kutsenko, Y Y Lopatina, L Bossard-Giannesini, O A Marchenko, O Pluchery, S V Snegir
Self-assembled monolayers (SAMs) on Au(111) are able to control the functionality of a gold surface. We use scanning tunnelling microscopy (STM) in air and contact angle measurements to compare the morphology and the chemistry of three alkylthiol SAMs differing by their tail groups: 1,9-nonanedithiol (NDT), 1,4-butanedithiol (BDT) and 11-mercaptoundecanol (MUOH). STM reveals very different morphologies: a hexagonal lattice for MUOH and parallel rows for NDT and BDT. In the case of NDT, we find that the thiol tail groups may form disulfide bridges with long immersion times...
May 16, 2017: Nanotechnology
Hong Zhang, Ruizhen Yang, Yunze He, Ali Foudazi, Liang Cheng, Guiyun Tian
Microwave thermography (MWT) has many advantages including strong penetrability, selective heating, volumetric heating, significant energy savings, uniform heating, and good thermal efficiency. MWT has received growing interest due to its potential to overcome some of the limitations of microwave nondestructive testing (NDT) and thermal NDT. Moreover, during the last few decades MWT has attracted growing interest in materials assessment. In this paper, a comprehensive review of MWT techniques for materials evaluation is conducted based on a detailed literature survey...
May 15, 2017: Sensors
M O Stetsenko, S P Rudenko, L S Maksimenko, B K Serdega, O Pluchery, S V Snegir
The assemblies of cross-linked gold nanoparticles (AuNP) attract lot of scientific attention due to feasible perspectives of their use for development of scaled contact electrodes. Here, we developed and tested method of solid-state formation of dimers created from small AuNP (~18 nm) cross-linked with 1.9-nonadithiol (NDT) molecules. The morphology of created coating of a glass surface and its optical-polarization properties have been studied in detail by combination of scanning electron microscopy, atomic force microscopy, UV-visible spectroscopy, and modulation-polarization spectroscopy...
December 2017: Nanoscale Research Letters
Denis Fouque
No abstract text is available yet for this article.
May 1, 2017: Nephrology, Dialysis, Transplantation
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