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facet block

Kousik Bhunia, Moumita Chandra, Debabrata Pradhan
This review focuses on the recent progress in shape-controlled synthesis and exposed facets-dependent catalytic properties of widely used nanostructured noble metals (Pd, Pt, and Au), bimetallic alloys involving one noble metal, and oxides of first row d-block elements such as titanium oxide (TiO₂), vanadium oxide (V₂O5 ), chromium oxide (Cr₂O₃), manganese oxide (MnO₂), iron oxide (Fe₂O₃), cobalt oxide (Co₃O₄), nickel oxide (NiO), copper oxide (Cu₂O), and zinc oxide (ZnO). The major emphasis is given on the role of shape-controlling agents and experimental parameters to control the exposed facets of the nanocrystals...
January 1, 2019: Journal of Nanoscience and Nanotechnology
Sebastian Ludyga, Uwe Pühse, Markus Gerber, Christian Herrmann
BACKGROUND: Although accumulating evidence suggests that motor and cognitive development is interrelated, only a few studies have investigated links between executive function and motor control. Therefore, the present cross-sectional study examined the relationship between motor competences and core components of executive functioning, including inhibitory control, working memory and cognitive flexibility. METHODS: In 89 preadolescent children, motor competences were assessed using the MOBAK-5 test battery...
October 16, 2018: European Journal of Sport Science
Zhanguo Li, Mingming Jiang, Yuzhou Sun, Zhenzhong Zhang, Binghui Li, Haifeng Zhao, Chongxin Shan, Dezhen Shen
Semiconducting micro/nanostructures possessing naturally optical waveguiding behaviors and Fabry-Perot (F-P) like resonances are emerging as versatile building blocks for the assembly of photonic and optoelectronic devices, such as photodetectors, light-emitting diodes, lasers and so on. Individual ZnO micro/nanowires with a rectangular cross-section, such as microwires and microbelts possessing naturally smooth facets along both sides for good optical feedback, can be employed as an underlying F-P mode microcavity whilst as the gain medium for light amplification...
October 21, 2018: Nanoscale
Genevieve Z Steiner, Alan Bensoussan, Jianxun Liu, Mark I Hohenberg, Dennis H Chang
BACKGROUND: Mild cognitive impairment (MCI) is a syndrome characterised by a decline in cognition but relatively intact activities of daily living. People with MCI have an increased risk of developing dementia, and MCI is often referred to as a transitional stage between healthy ageing and dementia. Currently, there are no pharmaceutical therapies approved by the US Federal Drug Administration for MCI. Randomised controlled trials on the two major classes of anti-dementia pharmaceuticals, cholinesterase inhibitors and glutamate receptor antagonists, have produced poor results in MCI cohorts...
September 25, 2018: Trials
Michael Amlang, Hans Zwipp, Martin Pompach, Stefan Rammelt
Introduction: Less invasive restoration of joint congruity and calcaneal shape in displaced intra-articular calcaneal fractures via a sinus tarsi approach followed by percutaneous internal fixation with an interlocking nail results in a low rate of soft-tissue complications and good short-term outcomes1 (Video 1). Indications & Contraindications: <AbstractText Label="Step 1 Patient Placement" NlmCategory="UNASSIGNED">Place the patient in the lateral decubitus position, supporting the involved extremity with a soft radiolucent pillow, flex the contralateral knee, check with fluoroscopy before draping, and obtain lateral radiographs...
December 28, 2017: JBJS Essential Surgical Techniques
Yasutaka Nagaoka, Rui Tan, Ruipeng Li, Hua Zhu, Dennis Eggert, Yimin A Wu, Yuzi Liu, Zhongwu Wang, Ou Chen
The assembly of uniform nanocrystal building blocks into well ordered superstructures is a fundamental strategy for the generation of meso- and macroscale metamaterials with emergent nanoscopic functionalities1-10 . The packing of spherical nanocrystals, which frequently adopt dense, face-centred-cubic or hexagonal-close-packed arrangements at thermodynamic equilibrium, has been much more widely studied than that of non-spherical, polyhedral nanocrystals, despite the fact that the latter have intriguing anisotropic properties resulting from the shapes of the building blocks11-13 ...
September 2018: Nature
Riccardo Rastelli, Nial Friel
In cluster analysis interest lies in probabilistically capturing partitions of individuals, items or observations into groups, such that those belonging to the same group share similar attributes or relational profiles. Bayesian posterior samples for the latent allocation variables can be effectively obtained in a wide range of clustering models, including finite mixtures, infinite mixtures, hidden Markov models and block models for networks. However, due to the categorical nature of the clustering variables and the lack of scalable algorithms, summary tools that can interpret such samples are not available...
2018: Statistics and Computing
W R Marchand, W Klinger, K Block, S VerMerris, T S Herrmann, C Johnson, E Shubin, S Sheppard
OBJECTIVES: Many Veterans suffer from substance use disorders (SUDs). Treatment challenges include poor treatment engagement and high relapse rates. Complementary interventions have the potential to enhance both. This study was a preliminary evaluation of sailing adventure therapy (SAT) for this population. DESIGN: Retrospective chart review. Participants in the intervention were 22 Veterans (20 male, 2 female) aged 22-65 who entered a Veterans Administration residential SUD treatment program...
October 2018: Complementary Therapies in Medicine
Tzu Chuan Yen, Jane Mohler, Michael Dohm, Kaveh Laksari, Bijan Najafi, Nima Toosizadeh
This study evaluates the effect of paravertebral spinal injection (PSI), utilizing both subjective and objective assessments in chronic low back pain (LBP) associated with facet joint arthrosis over a one-month duration. Subjective questionnaires included the visual analogue scale (VAS) for pain, the Oswestry Disability Index, the Health Survey SF-12, and the short Falls Efficacy Scale International (FES-I). Objective assessments included in-clinic gait and Timed Up and Go (TUG) tests using wearable sensors, as well as 48 h daily physical activity (DPA) monitored using a chest-worn triaxial accelerometer...
September 12, 2018: Sensors
Didem Ağaç, Leonardo D Estrada, Robert Maples, Lora V Hooper, J David Farrar
The mammalian nervous system communicates important information about the environment to the immune system, but the underlying mechanisms are largely unknown. Secondary lymphoid organs are highly innervated by sympathetic neurons that secrete norepinephrine (NE) as the primary neurotransmitter. Immune cells express adrenergic receptors, enabling the sympathetic nervous system to directly control immune function. NE is a potent immunosuppressive factor and markedly inhibits TNF-α secretion from innate cells in response to lipopolysaccharide (LPS)...
September 5, 2018: Brain, Behavior, and Immunity
Mu-Chieh Lo, Robinson Guzmán, Guillermo Carpintero
In this paper, a monolithically integrated ∼1.55 µm semiconductor laser in the fourth harmonic colliding pulse mode locking configuration is reported. This device was developed within a multi-project wafer run at an InP-based active-passive generic foundry. The 1.66-mm Fabry-Pérot cavity is formed with two on-chip reflector building blocks rather than cleaved facets. In the cavity, three absorber sections symmetrically divide the cavity in four gain segments. This laser diode is able to emit 100-GHz pulse trains with 500-fs pulse duration as well as two-tone emissions with a frequency separation of 2...
July 9, 2018: Optics Express
Romain Perolat, Adrian Kastler, Benjamin Nicot, Jean-Michel Pellat, Florence Tahon, Arnaud Attye, Olivier Heck, Kamel Boubagra, Sylvie Grand, Alexandre Krainik
Low back pain (LBP) is the most common pain syndrome, and is an enormous burden and cost generator for society. Lumbar facet joints (FJ) constitute a common source of pain, accounting for 15-45% of LBP. Facet joint degenerative osteoarthritis is the most frequent form of facet joint pain. History and physical examination may suggest but not confirm facet joint syndrome. Although imaging (radiographs, MRI, CT, SPECT) for back pain syndrome is very commonly performed, there are no effective correlations between clinical symptoms and degenerative spinal changes...
August 8, 2018: Insights Into Imaging
Suman K Chowdhury, Ryan M Byrne, Yu Zhou, Xudong Zhang
OBJECTIVE: To examine the lumbar facet joint kinematics in vivo during dynamic lifting and the effects of the load lifted. BACKGROUND: Although extensive efforts have been dedicated to investigating the risk factors of low back pain (LBP) associated with load handling in the workplace, the biomechanics of lumbar facet joints during such activities is not well understood. METHOD: Fourteen healthy participants performed a load-lifting task while a dynamic stereo-radiography system captured their lumbar motion continuously...
August 3, 2018: Human Factors
Rui Liu, Huachao Zhao, Xiaoyu Zhao, Zuoliang He, Yujian Lai, Wanyu Shan, Deribachew Bekana, Gang Li, Jingfu Liu
Adsorbed atomic H (H*ads ) facilitates indirect pathways playing a major role in the electrochemical removal of various priority pollutants. It is crucial to identify the atomic sites responsible for the provision of H*ads . Herein, through a systematic study of the distribution of H*ads on Pd nanocatalysts with different sizes and, more importantly, deliberately controlled relative abundance of surface defects, we uncovered the central role of defects in the provision of H*ads . Specifically, the H*ads generated on Pd in an electrochemical process increased markedly upon introducing defect sites by changing the morphology to ultrathin polycrystalline Pd nanowires (NWs), while dramatically reducing upon decreasing the number of surface defects through an annealing treatment...
September 4, 2018: Environmental Science & Technology
René Mõttus, Jonah Sinick, Antonio Terracciano, Martina Hřebíčková, Christian Kandler, Juko Ando, Erik Lykke Mortensen, Lucía Colodro-Conde, Kerry L Jang
Mõttus and colleagues (2017) reported evidence that the unique variance in specific personality characteristics captured by single descriptive items often displayed trait-like properties of cross-rater agreement, rank-order stability, and heritability. They suggested that the personality hierarchy should be extended below facets to incorporate these specific characteristics, called personality nuances. The present study attempted to replicate these findings, employing data from 6,287 individuals from 6 countries (Australia, Canada, Czech Republic, Denmark, Japan, and United States)...
July 26, 2018: Journal of Personality and Social Psychology
Po-Chou Liliang, Chao-Ming Hung, Kang Lu, Han-Jung Chen
BACKGROUND: A superior hypogastric plexus block is difficult to perform and hampered by bony structures of the iliac crest and transverse process of L5. OBJECTIVE: We report on a fluoroscopically guided posterolateral transdiscal technique for superior hypogastric plexus neurolysis using a single needle. STUDY DESIGN: A technical note describing interventional procedures. SETTING: The neurosurgery department of a cancer hospital...
July 2018: Pain Physician
Jaewon Lee, Sooho Ham, Dayeon Choi, Du-Jeon Jang
ZnS nanostructures of barbell-shaped porous and hollow nanoplates with a controlled amount of S vacancies have been facilely fabricated via the hydrothermal treatment of ZnS(en)0.5 (en = ethylenediamine) nanoplates. The amount of S vacancies as well as the morphologies of ZnS nanostructures have been controlled by adjusting the hydrolysis time; the layered structure of ZnS(en)0.5 nanoplates decomposes to yield discrete ZnS nanoparticles at two end facets of template nanoplates, producing barbell-shaped porous and hollow ZnS nanoplates with abundant S vacancies finally...
August 7, 2018: Nanoscale
Chad M Brummett, J David Clark
No abstract text is available yet for this article.
September 2018: Anesthesiology
Olav Rohof, Chee Kean Chen
Background and aims The evidence for interventional treatment of thoracic facet joint pain remains limited. This is partly due to inconsistency of the path of thoracic medial branches and a lower incidence of thoracic facet pain among spine pain patients. The purpose of this study is to evaluate the efficacy of bipolar radiofrequency (RF) neurotomy of medial branches for treating chronic thoracic facet joint pain. Methods This is a retrospective record review of all patients diagnosed to have thoracic facet pain with diagnostic block and subsequently treated with bipolar RF neurotomy of medial branch between January 2012 and December 2015...
October 25, 2018: Scandinavian Journal of Pain
Alireza Kamali, Maryam Shokrpour, Bijan Yazdi, Atefeh Khalilpour
Pain is a complex and multi-faceted human perception and several factors could dampen the pain. Therefore, we aimed to comparison of addition of neostigmine and tramadol to 1.5 % lidocaine with paracervical block in reduce of post-operative pain in colporrhaphy. This study was a randomized and double-blind clinical trial for 108 patients' as candidate for colporrhaphy. Patients were randomly divided in three groups (Neostigmine, tramadol and control).We recorded pain in 2 and 6 and 12 hours after surgery, duration of analgesia and mean of use narcotic drug in 24 hours after surgery for all patients...
April 24, 2018: European Journal of Translational Myology
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