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https://www.readbyqxmd.com/read/28102377/semi-dirac-semimetal-in-silicene-oxide
#1
Chengyong Zhong, Yuanping Chen, Yuee Xie, Yi-Yang Sun, Shengbai Zhang
A semi-Dirac semimetal is a material that exhibits linear band dispersion in one direction and quadratic band dispersion in the orthogonal direction and, therefore, hosts massless and massive fermions at the same point in the momentum space. While a number of interesting physical properties have been predicted in semi-Dirac semimetals, it has been rare to realize such materials in condensed matter. Based on the fact that some honeycomb materials are easily oxidized or chemically absorb other atoms, here, we theoretically propose an approach of modifying their band structures by covalent addition of group-VI elements and strain engineering...
January 19, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28099071/an-observational-study-of-provider-perspectives-on-alternative-payment-models
#2
Drew Harris, Katherine Puskarz
Over the past decade, reimbursement in the US health care system has undergone rapid transformation. The Affordable Care Act and the Medicare Access and CHIP Reauthorization Act are some of the many changes challenging traditional modes of practice and raising concerns about practitioners' ability to adapt. Recently, physician satisfaction was proposed as an addition to the Triple Aim in acknowledgment of how the physician's attitude can affect outcomes. To understand how physicians perceive alternative payment models (APMs) and how those perceptions may vary by their organizational role, non-leader physicians (N = 31), physician leaders (N = 67), and health system leaders (N = 49) were surveyed using a mixed-methods approach...
January 18, 2017: Population Health Management
https://www.readbyqxmd.com/read/28097796/reductive-dehydrogenation-of-a-stannane-via-multiple-sn-h-activation-by-frustrated-lewis-pairs
#3
Christian P Sindlinger, Frederik S W Aicher, Hartmut Schubert, Lars Wesemann
A bulky substituted stannane Ar*SnH3 (Ar*=2,6-(2',4',6'-triisopropylphenyl)phenyl) was treated with the well-known frustrated Lewis pair (FLP) PtBu3 /B(C6 F5 )3 in varying stoichiometries. To some degree, hydride abstraction and adduct formation is observed, leading to [Ar*SnH2 (PtBu3 )](+) which is rather unreactive toward further dehydrogenation. In a competing process, the FLP proved to be capable of completely striping-off hydrogen and hydrides to generate the first cationic phosphonio-stannylene [Ar*Sn(PtBu3 )](+) ...
January 18, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28097446/temperament-traits-and-psychopathology-in-young-clinically-referred-children-compared-to-a-general-population-sample
#4
Frederike Y Scheper, Mirjana Majdandžić, Peter M van de Ven, Lucres M C Jansen, Theo A H Doreleijers, Carlo Schuengel, Annelou L C de Vries
Evidence from general population studies shows the contribution of various temperament traits to the development of child psychopathology. Little is known about which traits are associated with internalizing and externalizing problems in young clinically referred children. The current study assessed temperament and internalizing and externalizing problems in 216 referred children (M = 4.35 years, SD 0.89, 81% boys). A comparison was made with an age and gender matched general population sample. Referred children showed less effortful control than general population children...
January 18, 2017: Child Psychiatry and Human Development
https://www.readbyqxmd.com/read/28096024/improving-satisfaction-among-established-patients-in-a-midwestern-pain-clinic
#5
Kathy A Baule, Linda D Scott, Kelly D Rosenberger, W Stephen Minore
BACKGROUND: A problem in many health care practices is deciding the appropriate appointment length for new and established patients. Patients become frustrated when there is inadequate time to have their needs met, yet when a patient's clinic time is spontaneously lengthened, the provider gets behind in schedule, causing delays and greater frustration for others. AIM: The aims of this evidence based project were to determine whether implementation of a flexible appointment system would improve the current scheduling process in a pain clinic by allowing complex patients the opportunity to schedule a longer clinic appointment and would improve patient satisfaction...
February 2017: Applied Nursing Research: ANR
https://www.readbyqxmd.com/read/28094231/improving-efficiency-using-time-driven-activity-based-costing%C3%A2-methodology
#6
Laura C Tibor, Stacy R Schultz, Ronald Menaker, Bradley D Weber, Jay Ness, Paula Smith, Phillip M Young
PURPOSE: The aim of this study was to increase efficiency in MR enterography using a time-driven activity-based costing methodology. METHODS: In February 2015, a multidisciplinary team was formed to identify the personnel, equipment, space, and supply costs of providing outpatient MR enterography. The team mapped the current state, completed observations, performed timings, and calculated costs associated with each element of the process. The team used Pareto charts to understand the highest cost and most time-consuming activities, brainstormed opportunities, and assessed impact...
January 11, 2017: Journal of the American College of Radiology: JACR
https://www.readbyqxmd.com/read/28092565/a-passive-eeg-bci-for-single-trial-detection-of-changes-in-mental-state
#7
Andrew Myrden, Tom Chau
Traditional brain-computer interfaces often exhibit unstable performance over time. It has recently been proposed that passive brain-computer interfaces may provide a way to complement and stabilize these traditional systems. In this study, we investigated the feasibility of a passive brain-computer interface that uses electroencephalography to monitor changes in mental state on a single-trial basis. We recorded cortical activity from 15 locations while 11 able-bodied adults completed a series of challenging mental tasks...
January 9, 2017: IEEE Transactions on Neural Systems and Rehabilitation Engineering
https://www.readbyqxmd.com/read/28090336/medical-feminism-working-mothers-and-the-limits-of-home-finding-a-balance-between-self-care-and-other-care-in-cross-cultural-debates-about-health-and-lifestyle-1952-1956
#8
Frederick Cooper
Post-war medical debates about the psychiatric consequences of married women's economic behaviour witnessed far more divergence and collision between perspectives than has often been acknowledged. Practitioners who approached women primarily as facilitators of family health-as wives and mothers-were mistrustful of the competing demands presented by paid employment. They were faced by a growing spectrum of opinion, however, which represented women as atrophying in the confines of domestic life, and which positioned work as a therapeutic act...
July 12, 2016: Palgrave Communications
https://www.readbyqxmd.com/read/28089332/lithium-silicate-endocrown-fabricated-with-a-cad-cam-system-a-functional-and-esthetic-protocol
#9
Leonardo Fernandes da Cunha, Carla Castiglia Gonzaga, Janes Francio Pissaia, Gisele Maria Correr
An endocrown restoration is an alternative approach to complete crowns with intraradicular cores or dowels for the restoration of endodontically treated teeth. Endocrowns conserve tooth structure and require fewer dental visits. This approach has been widely used, and various materials and techniques have been reported. Computer-aided design and computer-aided manufacturing (CAD-CAM) systems can generate and store libraries of teeth with various anatomies in their database, and diagnostic tooth waxing may not be required...
January 12, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28089308/physicians-views-and-experiences-of-discussing-weight-management-within-routine-clinical-consultations-a-thematic-synthesis
#10
REVIEW
Anne Dewhurst, Sarah Peters, Angela Devereux-Fitzgerald, Jo Hart
OBJECTIVE: To systematically search and synthesise qualitative studies of physicians' views and experiences of discussing weight management within a routine consultation. METHODS: A systematic search of four electronic databases identified 11,169 articles of which 16 studies met inclusion criteria. Quality was appraised using the Critical Appraisal Skills Programme tool and a thematic synthesis conducted of extracted data. RESULTS: Four analytical themes were found: (1) physicians' pessimism about patients' weight loss success (2) physicians' feel hopeless and frustrated (3) the dual nature of the physician-patient relationship (4) who should take responsibility for weight management...
December 21, 2016: Patient Education and Counseling
https://www.readbyqxmd.com/read/28081476/electron-spin-relaxation-of-a-boron-containing-heterocyclic-radical
#11
Sandra S Eaton, Kirby Huber, Hanan Elajaili, Joseph McPeak, Gareth R Eaton, Lauren E Longobardi, Douglas W Stephan
Preparation of the stable boron-containing heterocyclic phenanthrenedione radical, (C6F5)2B(O2C14H8), by frustrated Lewis pair chemistry has been reported recently. Electron paramagnetic resonance measurements of this radical were made at X-band in toluene:dichloromethane (9:1) from 10 to 293K, in toluene from 180 to 293K and at Q-band at 80K. In well-deoxygenated 0.1mM toluene solution at room temperature hyperfine splittings from (11)B, four pairs of (1)H, and 5 pairs of (19)F contribute to an EPR spectrum with many resolved lines...
December 30, 2016: Journal of Magnetic Resonance
https://www.readbyqxmd.com/read/28080091/dynamical-systems-modeling-of-early-childhood-self-regulation
#12
Pamela M Cole, Jason J Bendezú, Nilam Ram, Sy-Miin Chow
Self-regulation can be conceptualized in terms of dynamic tension between highly probable reactions (prepotent responses) and use of strategies that can modulate those reactions (executive processes). This study investigated the value of a dynamical systems approach to the study of early childhood self-regulation. Specifically, ordinary differential equations (ODEs) were used to model the interactive influences of 115 36-month-olds' executive processes (strategy use) and prepotent responses to waiting to open a gift (desire for the gift and frustration about waiting to open it)...
January 12, 2017: Emotion
https://www.readbyqxmd.com/read/28079943/cooperative-activation-of-isocyanates-by-al-n-based-active-lewis-pairs-and-the-generation-of-a-c5-chain-by-simultaneous-formation-of-two-c-c-bonds
#13
Katharina Martinewski, Thorsten Holtrichter-Rößmann, Christian Rösener, Alexander Hepp, Ernst-Ulrich Würthwein, Werner Uhl
The active Al/N Lewis pair, (Me3 C)2 Al-C(SiMe3 )=C(H)-N(CHMe-CH2 )2 CH2 (2), reacted with isocyanates to afford a fascinating variety of products. One equivalent of Ph-N=C=O yielded by the release of H-C≡C-SiMe3 an urea-type ligand which coordinated the Al atom in a chelating manner (4). Dipp-N=C=O gave a similar product, but the bulky substituent hindered the approach of the N-aryl group to Al. A situation similar to that of frustrated Lewis pairs resulted in the coordination of the alkyne to the Al and N atoms (6) by C-H bond activation...
November 7, 2016: Chemistry: a European Journal
https://www.readbyqxmd.com/read/28079027/the-properties-of-ultrapure-delafossite-metals
#14
A P Mackenzie
Although they were first synthesized in chemistry laboratories nearly fifty years ago, the physical properties of the metals PdCoO2, PtCoO2 and PdCrO2 have only more recently been studied in detail. The delafossite structure contains triangular co-ordinated atomic layers, and electrical transport in the delafossite metals is strongly 2D. Their most notable feature is their in-plane conductivity, which is amazingly high for oxide metals. At room temperature, the conductivity of non-magnetic PdCoO2 and PtCoO2 is higher per carrier than those of any alkali metal and even the most conductive elements, copper and silver...
January 12, 2017: Reports on Progress in Physics
https://www.readbyqxmd.com/read/28077822/factors-associated-with-work-ability-index-wai-among-intensive-care-units-icus-nurses
#15
Akbar Rostamabadi, Zahra Zamanian, Zahra Sedaghat
: Objectives Work ability is a crucial occupational health issue in health care settings where a high physical and psychosocial work capacity is required and a high risk of disabling injuries and illnesses is predictable. This study aims to examine the association between the work ability index (WAI) and individual characterizations, workload, fatigue, and diseases among intensive care units' (ICUs') nurses. METHODS: The study sample included 214 nurses selected by a random sampling method from a target population consisting of 321 registered nurses working in eight ICUs...
January 11, 2017: Journal of Occupational Health
https://www.readbyqxmd.com/read/28076444/wiseeye-next-generation-expandable-and-programmable-camera-trap-platform-for-wildlife-research
#16
Sajid Nazir, Scott Newey, R Justin Irvine, Fabio Verdicchio, Paul Davidson, Gorry Fairhurst, René van der Wal
The widespread availability of relatively cheap, reliable and easy to use digital camera traps has led to their extensive use for wildlife research, monitoring and public outreach. Users of these units are, however, often frustrated by the limited options for controlling camera functions, the generation of large numbers of images, and the lack of flexibility to suit different research environments and questions. We describe the development of a user-customisable open source camera trap platform named 'WiseEye', designed to provide flexible camera trap technology for wildlife researchers...
2017: PloS One
https://www.readbyqxmd.com/read/28071866/exploration-of-the-psychosocial-issues-associated-with-gastroparesis-a-qualitative-investigation
#17
Sally Woodhouse, Geoff Hebbard, Simon R Knowles
AIMS AND OBJECTIVES: To build on the understanding of how individuals experience gastroparesis, how gastroparesis impacts on their lives, and how they adapt to living with gastroparesis. BACKGROUND: Gastroparesis is a neurogastroenterological disorder associated with increased psychological distress and reduced quality of life. Research shows that gastroparesis poses a significant burden across many facets of life, however less is known about how individuals cope and adapt to living with the condition...
January 10, 2017: Journal of Clinical Nursing
https://www.readbyqxmd.com/read/28069861/the-fine-line-between-doctoring-and-dealing
#18
Pooja Lagisetty
To treat a patient with addiction, a physician must overcome feelings of frustration and betrayal.
January 1, 2017: Health Affairs
https://www.readbyqxmd.com/read/28060993/self-assessed-hearing-handicap-in-older-adults-with-poorer-than-predicted-speech-recognition-in-noise
#19
Mark A Eckert, Lois J Matthews, Judy R Dubno
Purpose: Even older adults with relatively mild hearing loss report hearing handicap, suggesting that hearing handicap is not completely explained by reduced speech audibility. Method: We examined the extent to which self-assessed ratings of hearing handicap using the Hearing Handicap Inventory for the Elderly (HHIE; Ventry & Weinstein, 1982) were significantly associated with measures of speech recognition in noise that controlled for differences in speech audibility...
January 1, 2017: Journal of Speech, Language, and Hearing Research: JSLHR
https://www.readbyqxmd.com/read/28054187/the-influence-of-hydrogen-bonding-on-partition-coefficients
#20
Nádia Melo Borges, Peter W Kenny, Carlos A Montanari, Igor M Prokopczyk, Jean F R Ribeiro, Josmar R Rocha, Geraldo Rodrigues Sartori
This Perspective explores how consideration of hydrogen bonding can be used to both predict and better understand partition coefficients. It is shown how polarity of both compounds and substructures can be estimated from measured alkane/water partition coefficients. When polarity is defined in this manner, hydrogen bond donors are typically less polar than hydrogen bond acceptors. Analysis of alkane/water partition coefficients in conjunction with molecular electrostatic potential calculations suggests that aromatic chloro substituents may be less lipophilic than is generally believed and that some of the effect of chloro-substitution stems from making the aromatic π-cloud less available to hydrogen bond donors...
January 4, 2017: Journal of Computer-aided Molecular Design
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