bluuebunny/crossref_metadata_2025_split huggingface dataset:
SGEM Hot Off the Press: ultrasound during critical care simulation: a randomized crossover study
Authors: McKenna Paul , Thoma Brent , Milne Ken , Bond Chris 
Published: October 2016

AbstractAs part of the Canadian Journal of Emergency Medicine’s (CJEM) developing social media strategy,1 we are collaborating with the Skeptics’ Guide to Emergency Medicine (SGEM) to summarize and critically appraise the current emergency medicine (EM) literature using evidence-based medicine principles. In the “Hot Off the Press” series, we select original research manuscripts published in CJEM to be featured on the SGEM website/podcast2 and discussed by the study authors and the online EM community. A similar collaboration is underway between the SGEM and Academic Emergency Medicine. What follows is a summary of the selected article the immediate post-publication synthesis from the SGEM podcast, commentary by the first author, and the subsequent discussion from the SGEM blog and other social media. Through this series, we hope to enhance the value, accessibility, and application of important, clinically relevant EM research. In this, the third SGEM HOP hosted collaboratively with CJEM, we discuss Olszynski et al.’s randomized crossover study evaluating the use of ultrasound simulator devices during critical care simulation.3
How to Work with Complex Families in Regional Tasmania: Putting Theory into Practice
Authors: Best Priscilla E. , Lambie Ebony J. 
Published: October 2016

This paper explores the complexities of how to get our families who are often in a chaotic state of surviving (emotionally, psychologically, and physiologically) to the point where they can process psychoeducation, develop parenting skills, and implement strategies to care for children in enduring ways and to feel successful in their everyday lives. This exploration led us to ponder two questions:
1.What are “good” working relationships?2.How do these relationships benefit the families we work with?
To explore these questions further, we turn to a fuller body of research on Attachment Theory and Polyvagal Theory that gives a better understanding and comprehension of incorporating these theories into practice. This paper attempts to illustrate how the workers in the North-West Early Start Therapeutic Support programme delivered by Anglicare Tasmania develop good working relationships with families and how this translates to providing enduring care for their children.
Association of Airborne Microorganisms in the Operating Room With Implant Infections: A Randomized Controlled Trial
Authors: Darouiche Rabih O. , Green David M. , Harrington Melvyn A. , Ehni Bruce L. , Kougias Panagiotis , Bechara Carlos F. , O’Connor Daniel P. 
Published: October 2016

OBJECTIVETo evaluate the association of airborne colony-forming units (CFU) at incision sites during implantation of prostheses with the incidence of either incisional or prosthesis-related surgical site infections.DESIGNRandomized, controlled trial.SETTINGPrimary, public institution.PATIENTSThree hundred patients undergoing total hip arthroplasty, instrumented spinal procedures, or vascular bypass graft implantation.METHODSPatients were randomly assigned in a 1:1 ratio to either the intervention group or the control group. A novel device (Air Barrier System), previously shown to reduce airborne CFU at incision sites, was utilized in the intervention group. Procedures assigned to the control group were performed without the device, under routine operating room atmospheric conditions. Patients were followed up for 12 months to determine whether airborne CFU levels at the incision sites predicted the incidence of incisional or prosthesis-related infection.RESULTSData were available for 294 patients, 148 in the intervention group and 146 in the control group. CFU density at the incision site was significantly lower in the intervention group than in the control group (P<.001). The density of airborne CFU at the incision site during the procedures was significantly related to the incidence of implant infection (P=.021). Airborne CFU densities were 4 times greater in procedures with implant infection versus no implant infection. All 4 of the observed prosthesis infections occurred in the control group.CONCLUSIONReduction of airborne CFU specifically at the incision site during operations may be an effective strategy to reduce prosthesis-related infections. Trial Registration: clinicaltrials.gov Identifier: NCT01610271Infect Control Hosp Epidemiol 2016;1–8
High-fidelity simulation of a standing-wave thermoacoustic–piezoelectric engine
Authors: Lin Jeffrey , Scalo Carlo , Hesselink Lambertus 
Published: October 2016

We have carried out wall-resolved unstructured fully compressible Navier–Stokes simulations of a complete standing-wave thermoacoustic–piezoelectric engine model inspired by the experimental work of Smoker et al. (J. Appl. Phys., vol. 111 (10), 2012, 104901). The model is axisymmetric and comprises a 51 cm long resonator divided into two sections: a small-diameter section enclosing a thermoacoustic stack and a larger-diameter section capped by a piezoelectric diaphragm tuned to the thermoacoustically amplified mode (388 Hz). The diaphragm is modelled with multi-oscillator broadband time-domain impedance boundary conditions (TDIBCs), providing higher fidelity over single-oscillator approximations. Simulations are first carried out to the limit cycle without energy extraction. The observed growth rates are shown to be grid convergent and are verified against a numerical dynamical model based on Rott’s theory. The latter is based on a staggered grid approach and allows jump conditions in the derivatives of pressure and velocity in sections of abrupt area change and the inclusion of linearized minor losses. The stack geometry maximizing the growth rate is also found. At the limit cycle, thermoacoustic heat leakage and frequency shifts are observed, consistent with experiments. Upon activation of the piezoelectric diaphragm, steady acoustic energy extraction and a reduced pressure amplitude limit cycle are obtained. A heuristic closure of the limit cycle acoustic energy budget is presented, supported by the linear dynamical model and the nonlinear simulations. The developed high-fidelity simulation framework provides accurate predictions of thermal-to-acoustic and acoustic-to-mechanical energy conversion (via TDIBCs), enabling a new paradigm for the design and optimization of advanced thermoacoustic engines.
Research Note: “Negative” Personalization: Party Leaders and Party Strategy
Authors: Pruysers Scott , Cross William 
Published: October 2016

AbstractWhile the negative campaigning literature has witnessed tremendous growth in recent years, the precise targets of campaign negativity have not been fully explored, as candidates and their parties are largely treated as the same target. Likewise, although scholars are increasingly writing about the personalization of politics, this literature has not considered whether parties can “personalize” their opponents by focusing their messaging and attacks more on individual leaders than the parties they lead. In an attempt to bridge the gap between these two literatures, we develop the concept of negative personalization. Negative personalization, as we define it, is an emphasis on opposing party leaders in campaign communication more so than on the parties that they lead. Exploring recent election campaigns in Canada's largest province, we document the extent to which parties engage in negative personalization and suggest hypotheses for the factors leading to increased negative personalization.
Adaptive tracking control of multi-link robots actuated by pneumatic muscles with additive disturbances
Authors: Karnjanaparichat Tarapong , Pongvuthithum Radom 
Published: October 2016

SUMMARYIn this paper, we study the problem of adaptive position tracking for a multi-link robot driven by two opposing pneumatic muscle groups with additive disturbances. In contrast to widely used sliding mode control methods, the proposed controller is continuous and able to prevent chattering. All physical parameters of the robot and the pneumatic muscles, including pneumatic muscle coefficients, link lengths and moments of inertia are unknown and can be time-varying and the unknown additive disturbances can be discontinuous. Under these conditions, we prove that closed-loop trajectories of all of the joint positions can track any C1 joint reference signal. The joint errors will be within a prescribed error bound in a finite time. The adaptive controller only uses the reference signal, not its derivative. The continuous adaptive gain is one-dimensional. Simulations including a two-link robot arm with friction and realistic muscle models are presented to demonstrate the robustness of the adaptive control under severe changes of the system parameters. In all simulations, the joint positions can track C1 trajectories and all errors are within the prescribed error bound in the same time frame, even though the muscle parameters are vastly different.
Restricted, Distorted but Alive: The Memory of the “Lost Generation” of Chinese Educated Youth
Authors: Bonnin Michel 
Published: October 2016

AbstractDuring the 1980s, the immediate memory of the Maoist rustication movement expressed itself almost exclusively through the vector of literature, but since 1990, for reasons worth reflecting upon, a wide range of memorial activities have developed, involving a large number of the former educated youth (zhiqing). In the 2000s, this field benefited from the generalization of the internet and is still very much alive today. At each stage, this mainly popular or unofficial (minjian) memory had to negotiate a breathing space with a party-state still intent on controlling history and collective memory, especially concerning any topic directly linked with the Cultural Revolution. Thus, if memories of an important event are always varied because of the different personal experiences of the past and different individual situations and aspirations in the present, the spectrum of thezhiqingmemories has also been complicated by political considerations. This paper does not try to present an exhaustive picture of this large memorial field; instead, through different examples, it attempts to reflect upon the meaning of the strong memorial aspirations of thezhiqing. It argues that only a genuine respect for history (as shown in the remarkable endeavours of some formerzhiqing) will help this generation to transcend the conflict of memories to find meaning in its own fate.
Mummifying the Working Class: The Cultural Revolution and the Fates of the Political Parties of the 20th Century
Authors: Russo Alessandro 
Published: October 2016

AbstractA number of prolonged political experiments in Chinese factories during the Cultural Revolution proved that, despite any alleged “historical” connection between the Communist Party and the “working class,” the role of the workers, lacking a deep political reinvention, was framed by a regime of subordination that was ultimately not dissimilar from that under capitalist command. This paper argues that one key point of Deng Xiaoping's reforms derived from taking these experimental results into account accurately but redirecting them towards the opposite aim, an even more stringent disciplining of wage labour. The outcome so far is a governmental discourse which plays an important role in upholding the term “working class” among the emblems of power, while at the same time nailing the workers to an unconditional obedience. The paper discusses the assumption that, while this stratagem is one factor behind the stabilization of the Chinese Communist Party, it has nonetheless affected the decline of the party systems inherited from the 20th century.
Mechanisms for floor surfaces or environmental ground contamination to cause human infection: a systematic review
Authors: RASHID T. , VONVILLE H. , HASAN I. , GAREY K. W. 
Published: October 2016

SUMMARYShoe soles have been shown to transfer infectious microorganisms to floor and ground surfaces. However, the possible modes of transmission of infectious agents from floors or ground surfaces to human contact for infection have not been systematically reviewed. A systematic review was performed on articles indexed in medical databases (Medline, EMBASE, PubMed) using a pre-defined search strategy and MeSH terms (date of last search: 15 March 2016). Only primary research studies in English that investigated the transmission dynamics of infectious microorganisms from floor or ground surfaces to human infection were included. Extraction of articles was performed two independent reviewers using pre-defined data fields in an Excel sheet. Disagreements were resolved by consensus. Thirty studies met the inclusion criteria. Almost all hospital-associated microorganisms including methicillin-resistant Staphylococcus aureus, Clostridium difficile, and multidrug-resistant Gram-negative species were identified on floor or ground surfaces. Several modes of transmission dynamics, most commonly direct contact or aerosolization, were identified. In conclusion, interventions such as efficient cleaning of floor surfaces and vectors that transfer infectious organisms to floors such as shoe soles could be an effective infection control strategy to prevent human disease.
A population-based longitudinal study of Clostridium difficile infection-related hospitalization in mid-age and older Australians
Authors: CHEN Y. , GLASS K. , LIU B. , RILEY T.V. , KORDA R. , KIRK M.D. 
Published: October 2016

SUMMARYClostridium difficile is the principal cause of infectious diarrhoea in hospitalized patients. We investigated the incidence and risk factors for hospitalization due to C. difficile infection (CDI) in older Australians. We linked data from a population-based prospective cohort study (the 45 and Up Study) of 266 922 adults aged ⩾45 years recruited in New South Wales, Australia to hospitalization and death records for 2006–2012. We estimated the incidence of CDI hospitalization and calculated days in hospital and costs per hospitalization. We also estimated hazard ratios (HR) for CDI hospitalization using Cox regression with age as the underlying time variable. Over a total follow-up of 1 126 708 person-years, 187 adults had an incident CDI hospitalization. The crude incidence of CDI hospitalization was 16·6/100 000 person-years, with a median hospital stay of 6 days, and a median cost of AUD 6102 per admission. Incidence increased with age and year of follow-up, with a threefold increase for 2009–2012. After adjustment, CDI hospitalization rates were significantly lower in males than females (adjusted HR 0·6, 95% confidence interval 0·4–0·7). CDI hospitalization rates increased significantly over 2009–2012. There is a need to better understand the increasing risk of CDI hospitalization in women.
Risk assessment and laboratory investigation of respiratory illness in travellers returning to Singapore 2012–2015: experience from the MERS-CoV Surveillance Programme
Authors: WIN M. K. , CHOW A. , HO H. J. , TAY S. Y. , LEO Y. S. 
Published: October 2016

SUMMARYSince the emergence of Middle East respiratory syndrome coronavirus (MERS-CoV), Singapore has enhanced its national surveillance system to detect the potential importation of this novel pathogen. Using the guidelines from the Singapore Ministry of Health, a suspect case was defined as a person with clinical signs and symptoms suggestive of pneumonia or severe respiratory infection with breathlessness, and with an epidemiological link to countries where MERS-CoV cases had been reported within the preceding 14 days. This report describes a retrospective review of 851 suspected MERS-CoV cases assessed at the adult tertiary-care hospital in Singapore between September 2012 and December 2015. In total, 262 patients (31%) were hospitalized. All had MERS-CoV infection ruled out by RT–PCR or clinical assessment. Two hundred and thirty (88%) of the hospitalized patients were also investigated for influenza virus by RT–PCR. Of these, 62 (27%) tested positive for seasonal influenza. None of the patients with positive influenza results had been vaccinated in the year prior to hospital admission. Ninety-three (36%) out of the 262 hospitalized patients had clinical and/or radiological evidence of pneumonia. This study demonstrates the potential benefits of pre-travel vaccination against influenza and pneumococcal disease.
Group C rotavirus infection in patients with acute gastroenteritis in outbreaks in western India between 2006 and 2014
Authors: JOSHI M. S. , JARE V. M. , GOPALKRISHNA V. 
Published: October 2016

SUMMARYFaecal specimens collected from outbreak (n = 253) and sporadic (n = 147) cases of acute gastroenteritis that occurred in western India between 2006 and 2014 were tested for group C rotavirus (GCR) using partial VP6 gene-based RT–PCR. All specimens were tested previously for the presence of other viral and bacterial aetiological agents by conventional methods. The rate of GCR detection was 8·6% and 0·7% in outbreak and sporadic cases, respectively. GCR infections prevailed in outbreaks reported from rural areas (10·9%) compared to urban areas (1·6%). Clinical severity score of the patients with GCR infection (n = 23) indicated severe disease in the majority (70%) of cases. The age distribution analysis indicated 52·1% of GCR infections in children aged <10 years. The male:female ratio in GCR-positive patients was 2·3:1. Of the 23 GCR-positive cases, 17 (73·9%) had a sole GCR infection and six had mixed infections with other viral and/or bacterial agents. Phylogenetic analysis of nucleotide sequences classified GCR strains of the study in to I2 genotype of the VP6 gene. This is the first study to show the occurrence of GCR in gastroenteritis outbreaks in India.
Meiotic arrest as an alternative to increase the production of bovine embryos by somatic cell nuclear transfer
Authors: Caixeta F.M.C. , Sousa R.V. , Guimarães A.L. , Leme L.O. , Sprícigo J.F.W. , Netto S.B. Senna , Pivato I. , Dode M.A.N. 
Published: October 2016

SummaryThis study aimed to evaluate the effect of meiotic arrest using phosphodiesterase type 3A (PDE 3A) inhibitors, cilostamide and C-type natriuretic peptide (NPPC), on pre-maturation (PM) of oocytes to be used in the production of cloned embryos. Nuclear maturation, in vitro embryo production (IVP), somatic cell nuclear transfer (SCNT) and parthenogenetic activation (PA), and total cells number of cloned embryos were evaluated. The results were analysed by chi-squared and Kruskal–Wallis test with a P-value <0.05 considered to be significant. Approximately 87.8% of the oocytes remained at germinal vesicle stage (GV) after 6 h of PM with 5 μM of cilostamide, confirming the meiotic block. Embryo development in IVP was similar (P > 0.05) between control and PM, both for cleavage (78.2% and 76.9%) and blastocyst (35.5% and 29.3%) rates. After SCNT, cleavage rate was also similar (P > 0.05) between control and PM (66% and 51.9%) however, blastocyst rate was lower (P < 0.05) in the PM group than in the control group (7.4% and 30.2%). After 6 h of PM with 100 nM of NPPC, approximately 84.9% of the oocytes remained at GV. No difference was found between control and PM in cleavage (69.2% and 76.1%) and blastocyst rates (37,4% and 35%) after IVP. Similarly, no differences between PM and control groups were observed for cleavage (69.2% and 68.4%) and blastocyst (24.4% and 21.5%) rates. SCNT and PA embryos from control or PM oocytes had similar total cell number. It can be concluded that PM for 6 h with 100 nM NPPC is feasible for cloned embryo production without affecting embryo outcome.
Electron Probe Microanalysis of Ni Silicides Using Ni-L X-Ray Lines
Authors: Llovet Xavier , Pinard Philippe T. , Heikinheimo Erkki , Louhenkilpi Seppo , Richter Silvia 
Published: October 2016

AbstractWe report electron probe microanalysis measurements on nickel silicides, Ni5Si2, Ni2Si, Ni3Si2, and NiSi, which were done in order to investigate anomalies that affect the analysis of such materials by using the Ni L3-M4,5line (Lα). Possible sources of systematic discrepancies between experimental data and theoretical predictions of Ni L3-M4,5k-ratios are examined, and special attention is paid to dependence of the Ni L3-M4,5k-ratios on mass-attenuation coefficients and partial fluorescence yields. Self-absorption X-ray spectra and empirical mass-attenuation coefficients were obtained for the considered materials from X-ray emission spectra and relative X-ray intensity measurements, respectively. It is shown that calculatedk-ratios with empirical mass attenuation coefficients and modified partial fluorescence yields give better agreement with experimental data, except at very low accelerating voltages. Alternatively, satisfactory agreement is also achieved by using the Ni L3-M1line (Lℓ) instead of the Ni L3-M4,5line.
SCHOOL GARDENS IN THE CITY
Authors: Ray Rashawn , Fisher Dana R. , Fisher-Maltese Carley 
Published: October 2016

AbstractW. E. B. Du Bois’s perspective on education was that the social and physical environments outside of schools matter to the learning that takes place inside schools. Existing research shows that due to environmental disparities in school and neighborhood contexts, Black and low-income children spend less time in activities that promote physical, cognitive, and social capabilities. These outside environmental factors influence the academic achievement gap. School gardens are noted as resources that capture the fluid environments between schools and neighborhoods. Little research, however, has quantitatively examined whether school gardens actually help to attenuate race and class inequality in academic achievement. We aim to determine how school gardens serve as gateways to help close the achievement gap. We analyze quantitative data on fifth graders’ math, reading, and science standardized test scores in Washington, DC with two main aims: (1) To compare differences between traditional schools and garden-based learning schools to determine whether students who have a school garden perform academically better than their counterparts; and (2) to examine whether the presence of a school garden plays a role in reducing race and social class disparities in academic achievement. We find that the presence of a school garden is associated with higher test scores and persists even when controlling for the race and class composition of students for reading and science. We conclude by discussing how school gardens can be used as a policy tool to create more environmental equity in urban areas.
Permanent ferroelectric retention of BiFeO3 mesocrystal
Authors: Hsieh Ying-Hui , Xue Fei , Yang Tiannan , Liu Heng-Jui , Zhu Yuanmin , Chen Yi-Chun , Zhan Qian , Duan Chun-Gang , Chen Long-Qing , He Qing , Chu Ying-Hao 
Published: October 2016

AbstractNon-volatile electronic devices based on magnetoelectric multiferroics have triggered new possibilities of outperforming conventional devices for applications. However, ferroelectric reliability issues, such as imprint, retention and fatigue, must be solved before the realization of practical devices. In this study, everlasting ferroelectric retention in the heteroepitaxially constrained multiferroic mesocrystal is reported, suggesting a new approach to overcome the failure of ferroelectric retention. Studied by scanning probe microscopy and transmission electron microscopy, and supported via the phase-field simulations, the key to the success of ferroelectric retention is to prevent the crystal from ferroelastic deformation during the relaxation of the spontaneous polarization in a ferroelectric nanocrystal.