bluuebunny/crossref_metadata_2025_split huggingface dataset:
Assessing the development and implementation of the Global Trigger Tool method across a large health system in Sicily
Authors: Parrinello Vincenzo , Grasso Elena , Saglimbeni Giuseppe , Patanè Gabriella , Scalia Alma , Murolo Giuseppe , Lachman Peter 
Published: July 2020

Background: The Institute for Healthcare Improvement (IHI) has proposed a new method, the Global Trigger Tool (IHI GTT), to detect and monitor adverse events (AEs) and provide information to implement improvement. In 2015, the Sicilian Health System adopted IHI GTT to assess the number, types and severity levels of AEs. The GTT was implemented in 44 of 73 Sicilian public hospitals and 18,008 clinical records (CRs) were examined. Here we present the standardized application of the GTT and the preliminary results of 14,706 reviews of CRs. Methods: IHI GTT was adapted, developed and implemented to the local context. Reviews of CRs were conducted by 199 professionals divided into 71 review teams consisting of three individuals: two of whom had clinical knowledge and expertise, and a physician to authenticate the AE. The reviewers entered data into a dedicated IT-platform. All 44 of the public hospitals were included, with approximately 300,000 yearly inpatient admissions out of a population of approximately 5 million. In total, 14,706 randomized CRs of inpatients from medicine, surgery, obstetric and ICU wards, from June 2015 to June 2018 were reviewed. Results: In 975 (6.6%) CRs at least one AE was found. Approximately 20,000 patients of the 300,000 discharged each year in Sicily have at least one AE. In 5,574 (37.9%) CRs at least one trigger was found. A total of 1,542 AEs were found. The analysis of ROC curve shows that the presence of two triggers in a CR indicates with high probability the presence of an AE. The most frequent type of AE was in-hospital related infection. Conclusions: The GTT is an efficient method to identify AEs and to track improvement of care. The analysis and monitoring of some triggers is important to prevent AEs. However, it is a labor-intensive method, particularly if the CRs are paper-based.
Anderson localization of IR light in 1D nanosystems
Authors: Maaza M. , Rao C. N. R. 
Published: July 2020

This contribution reports on the observation of a strong light localization of Anderson type in 1D systems consisting of ship-shaped carbon nanotubes. Such a localization of infrared (IR) light was observed using Fourier transform infrared spectroscopy under attenuated total reflection geometry within the spectral range of 2–20 µm. Such an IR light localization manifests itself in the form of a significant interference profile of the optical transmission over the full wavenumber range of

400

−

4000

c
m

−
1

.
Improved calibration model for single-camera endoscopic tomographic systems
Authors: Cai Weiwei , Liu Hecong , Wang Qianlong , Ju Dehao 
Published: July 2020

Multidimensional imaging has become one of the major developing trends of combustion diagnostics, and volumetric tomography is one of those techniques that has experienced significant progress over the past decades. Numerous time-resolved modalities of volumetric tomography have been developed to image a variety of physical quantities. Due to formidable expenses associated with the high-speed cameras, single-camera endoscopic versions have become more and more popular. Calibration is a critical step to establish the geometric relationship between the projections and the volume of interest. Zhang’s calibration model [
Seventh IEEE International Conference on Computer Vision (ICCV)
) (IEEEIEEE, 1999), Vol. 661, pp. 666–673] for a multicamera system has been adopted extensively for endoscopic tomographic systems. However, Zhang’s model is insufficient to depict the entire imaging process due to the existence of fiber bundles. In this work, an improved calibration model is developed by introducing a secondary imaging process to account for the introduction of the fiber bundles. Comparative studies were then conducted both numerically and experimentally to assess the imaging models. The results showed that Zhang’s model could introduce a large error in distance estimation when the magnification is nonunity, while the modified model can achieve a higher calibration precision under various secondary magnifications. This work can help further improve the reconstruction accuracy of endoscopic tomography.
Virtual optical pulling force
Authors: Lepeshov Sergey , Krasnok Alex 
Published: July 2020

Progress in light scattering engineering made it feasible to develop optical tweezers allowing capture, hold, and controllable displacement of submicrometer-size particles and biological structures. However, the momentum conservation law imposes a fundamental restriction on the optical pressure to be repulsive in paraxial fields, which severely limits the capabilities of optomechanical control, e.g., preventing attractive force acting on sufficiently subwavelength particles and molecules. Herein, we revisit the issue of optical forces by their analytic continuation to the complex frequency plane and considering their behavior in the transient regime. We show that the exponential excitation at the complex frequency offers an intriguing ability to achieve a pulling force for a passive resonant object of any shape and composition, even in the paraxial approximation. The approach is elucidated on a dielectric Fabry–Perot cavity and a high-refractive-index dielectric nanoparticle, a fruitful platform for intracellular spectroscopy and lab-on-a-chip technologies, where the proposed technique may find unprecedented capabilities.
Foundations of peace and harmony in families and communities: Insights from a TRUST, LEARN and CARE (TLC) framework
Authors: Hayes Alan , Freestone Margaret , Day Jamin 
Published: July 2020

In a world riven by conflict, violent extremism and sectarian animosities, peace is in short supply. Promoting peace is, however, central to the great traditions of faith, including Islam. Contrary to their core precepts, fear, hatred and envy drive an evil mis-construal of the core tenets of these religions; the antithesis of their fundamental commitment to the promotion of tolerance, care and compassion. Contemporary events defy comprehension and highlight the urgent need to find ways, especially within families and the communities in which they live, to counter radicalisation. Families, after all, ought to be key contexts for promoting dialogue, understanding and peace, consistent with the precepts of the Abrahamic religious traditions, and the Qur’anic focus on families that sees them as the forum for fulfilling the basic Islamic foundations of peace. Strong families build capable, caring and compassionate communities. The present paper briefly outlines a three-element model that might be usefully applied to better understand the processes of development of prosocial attitudes, beliefs and behaviours that are so vital for peaceful, constructive and compassionate co-existence; attributes that are so vitally needed in an increasingly multi-cultural, multi-ethnic and multi-faith world. The elements are encapsulated in three conceptually linked acronyms: TRUST; LEARN; CARE or TLC. The trust, learn, care (TLC) framework has been developed from key principles in the new discipline of family studies. Global changes present many challenges for families and communities. This article concludes that a peaceful and harmonious future will be built on the foundations for dialogue and understanding that start in families and communities. Trust and tolerance, learning and teaching, caring and compassion are at the heart of acceptance of diversity, growth of understanding and promotion of respect for cultures, religions and beliefs.
Correspondence Relationship between the Maximum Tensile Stress and Cycle Number during the Initial Stage of Low-Cycle Fatigue Test
Authors: Liu Ming , Ren Taolin , Gao Chenghui 
Published: July 2020

Abstract
The variation of the maximum tensile stress in each cycle with cycle number during the initial stage of low-cycle fatigue test before crack initiation was investigated based on the theoretically derived relation that is valid before crack initiates. The experimental data were fitted well by the proposed semiempirical expressions with four, three, or two fitting parameters, which were applicable to a large range of cycle numbers. The semiempirical expression with just one fitting parameter was only applicable to a small range of cycle numbers when the maximum tensile stress in each cycle did not fall below 85 % of the maximum one that appeared, which can be used as a guideline for the initial stage before crack initiation at low temperatures.
Mechanical characteristics evaluation of dual phase and related hardening techniques on AISI 4340 steel
Authors: Sharma Sathyashankara , Gurumurthy B. M , Kini U. Achutha , Hegde Ananda , Patil Ajinkya 
Published: July 2020

Steel has wide range of applications and is used in various machinery and general metallic components. Depending on the particular application, steels with tailorable and appropriate properties are used. This requires various methods which can be used to alter the properties based on the requirements. Generally, mechanical properties of the steel are improved by conducting the heat treatment processes. The aim of the present work is to experimentally investigate the effects of conventional heat treatments and special hardening techniques for dual phase structure on mechanical properties of AISI 4340 steel. The test specimens are machined as per ASTM standards and hardness, tensile, impact and microstructure analysis were carried out after the heat treatment processes. Dual phase heat treatment to obtain ferrite-bainite structure is performed by heating the as-bought specimen to the intercritical temperature for two hours followed by isothermal holding in fusible salt bath containing sodium nitrate and sodium nitrite at subcritical temperature for 30 minutes and cooling in air to room temperature. Similarly, ferrite-martensite structure is obtained by air cooling after holding isothermally in the salt bath for 10 seconds. Ferrite-bainite steel was observed to be soft, whereas ferrite-martensite steel was relatively harder. Austempered steel has high toughness with optimum hardness and conventionally hardened steel is the hardest among all. Microstructure shows colony of bainite and martensite in ferrite matrix of ferrite-bainite and ferrite-martensite dual phase structures respectively. An increase in brittleness was observed with the increase in hardness due to the conventional hardening to display lesser impact strength compared to austempered steel.
Real-time implementation of an enhanced nonlinear PID controller based on harmony search for one-stage servomechanism system
Authors: Shamseldin Mohamed. A. , Sallam Mohamed , Bassiuny A. M. , Abdel Ghany A. M. 
Published: July 2020

This paper presents a real-time implementation of an enhanced nonlinear PID (NPID) controller to follow a preselected position profile of one stage servomechanism drive system. This purpose should be realized regardless the different operating points and external disorders (friction and backlash). In this study, the MATLAB Simulink used for purpose of controller design while the result from simulation will be executed in real time using LABVIEW software. There is not enough information about the servomechanism experimental setup so, the system identification techniques will be used via collecting experimental input/output data. The optimum parameters for the controllers have been obtained via harmony search optimization technique according to an effective cost function. Also, the performance of enhanced NPID controller has been investigated by comparing it with linear PID controller. The experimental and simulation results show that the proposed NPID controller has minimum rise time and settling time through constant position reference test. Also, the NPID control is faster than the linear PID control by 40% in case of variable position reference test.
Three dimensional cyclonic turbulent flow structures at various geometries, inlet-outlet orientations and operating conditions
Authors: Pasymi Pasymi , Budhi Y. W. , Irawan A. , Bindar Y. 
Published: July 2020

Flow structure inside a chamber greatly determines the process performances. Therefore, the flow structure inside a chamber are often constructed in such a way as an effort to obtain equipment performances in accordance with the expectations. This study explored flow structure inside several chamber geometries and operating conditions. Three types of chamber, namely; GTC, DTC and TJC were set as the investigated chambers. The Computational Fluid Dynamics technique, supported by some experimental data from the literature, is used as an investigation method. The RANS based models, under Ansys-Fluent software were used in this numerical investigation. Simulation results revealed that the flow structures of GTC and DTC are predominantly created by spiral and vortex patterns. The vortex stabilizer diameter in the GTC affects the vortex pattern, velocity profile and pressure drop. The flow structure of DTC presents the most complex behavior. The flow structure inside TJC, in the case of unconfined outlet boundary, is characterized by the helical and wavy jet pattern. This structure is determined by the initial tangential intensity (IIT) and the inlet aspect ratio (RIA). The structures of vortex, helical, and wavy axial flow are properly constructed and visualized in this paper. There is no a turbulence model which is always superior to the other models, consistently. The standard k-ε model exhibits the realistic and robust performances among all of investigatied cases.
The effect of surface roughness of the impeller to the performance of pump as turbine pico power plant
Authors: Zariatin D. L. , Rahmalina Dwi , Prasetyo Eko , Suwandi A. , Sumardi M. 
Published: July 2020

Pump as Turbine (PAT) is one of a hydropower plant that applies a pump with a reversed flow, working as a turbine to generate electrical power. It has the advantages of low-cost, widely available in the market and user-friendly. However, like other hydropower plants, PAT technology has low performance in term of power output. The impeller surface roughness is one of critical aspect, which influences PAT performance because poor surface roughness causes losses and cavitation. The objective of the research is to increase the PAT performance by improving the quality of the surface roughness and validate by the experimental tests. A low-cost and customize hand grinding process was applied to produce five impellers with three different levels of surface roughness (average surface roughness of 0.16 mm, 0.24 mm, and 0.40 mm), an edge rounded impeller, and a varnish lacquer coated impeller. All of the impellers undergo performance testing. The performance of the original impeller (without modification) used as a comparison. The experiment result shows that an impeller with a lower surface roughness (lower Ra number) has a higher performance. An impeller with an average surface roughness of 0.16 mm improved 10.9% of its initial performance. Additional edge rounding for a 0.16 mm surface roughness impeller would improve its performance by 13.1%. The optimum turbine efficiency of 15.45% was achieve-able by implementing an impeller with the lowest surface roughness.
Evaluation of the chemical and thermo-physical properties of locally aggregated kaolin-based refractory materials
Authors: Olalere A. A. , Yaru S. S. , Dahunsi O. A. 
Published: July 2020

There is a continuous demand for refractory materials to meet the increasing expansion of industries and plants. Local clay materials are being explored to augment the inadequate supply of refractory materials. This study therefore evaluated the suitability of locally aggregated kaolin as refractory material. The kaolin was aggregated from Ipinsa kaolin, termite hill materials and bentonite in the ratio 5:4:1 by mass. Chemical analysis carried out on the materials using Proton Induced X-ray Emission (PIXE) Equipment revealed that the kaolin aggregate had a composition of 37.22% alumina (Al2O3) and 51.93% silica (SiO2). The Ipinsa kaolin comprised Al2O3 at 43.05% and SiO2 53.91%, termite hill material (Al2O3 22.69%, SiO2 58.83%) and bentonite had 23.10% Al2O3 and 55.40% SiO2. It shows that Ipinsa kaolin can be used for refractory materials in furnaces, kilns and stoves while the aggregated clay can be used in applications requiring more superior refractory properties. The thermo-physical analysis of the aggregated clay revealed a bulk density of 1.84 g/cm3, apparent porosity 31.54%, linear shrinkage 4.00%, thermal shock resistance 40+ and refactoriness 1900 oC. The refractoriness indicated that the aggregated clay is also suitable for use as ceramic fibre within the temperature range of 1800 and 2000 oC.
Multiaxial fatigue analysis for the shaft of a 100 MW hydro-power generator
Authors: Mantilla C. A. , Valdés J. A. , Casanova F. 
Published: July 2020

This paper presents a stress and fatigue life analysis for the shaft of a 100 hydro-generator. Normal and shear stresses were measured at the cylindrical section of the shaft at several power levels. A finite element model was developed to find points with stress concentration and the corresponding stress concentration factor. Analytical models taken from the literature were implemented to calculate stresses during phase-to-ground and phase-to-phase failure. Stresses were linked with the generation history of the machine taken each hour during one year to obtain the stress history. With the stress history, the Wang-Brown multiaxial fatigue model and the Miner’s rule were used to estimate the fatigue life.
Stresses on the shaft were found to be dependent on the generated power. Operation at partial load (between 30 and 60% of full load) was found to produce higher vibration in comparison with operation at power greater than 60% of full load. Changing the power level produced higher damage than the vibration produced during operation at a steady state condition. It was found that the shaft has a practically infinite life even when the damage produced during electrical failure was considered.
Alternative scheme for frequency response function measurement of experimental-analytical dynamic substructuring
Authors: Wan Iskandar Mirza W. I. I. , Abdul Rani M. N. , Yunus M. A. , Omar R. , Mohd Zin M. S. 
Published: July 2020

The accuracy of the predicted dynamic behaviour of an assembled structure using the frequency based substructuring (FBS) method is often found to be diverged from the experimental counterparts. The divergence which has become the paramount concern and major issue for structural dynamicists is because of the unreliable experimental FRF data of the interfaces of substructures, arising from the limited resources of appropriate excitation points and accelerometer attachments in the vicinity of the interfaces. This paper presents an alternative scheme for FRF measurement of the experimental FRF data of substructures. In this study, an assembled structure consisting of two substructures were used, namely substructure A (Finite element model) and substructure B (Experimental model). The FE model of substructure A was constructed by using 3D elements and the FRFs were derived via the FRF synthesis method. Specially customised bolts were used to allow the attachment of accelerometers and excitation to be made at the interfaces of substructure B, and the FRFs were measured by using impact testing. Both substructures A and B were then coupled by using the FBS method and the coupled FRF was validated with the measured FRF counterparts. This work revealed that the proposed scheme with specially customized bolts has led to a significant enhancement and improvement in the FBS predicted results.
Mixed convection jet impingement cooling of a moving plate
Authors: Saeid N. H. , Busahmin B. S. , Khalid A. A. 
Published: July 2020

The mixed convection heat transfer details of a jet impinging targeted a moving heated plate are studied numerically under steady laminar flow conditions. The governing parameters for the present problem are: Reynolds number (Re), Grashof number (Gr), the velocity of the heated plate (U), jet width and distance from the heated plate. The results are presented to show the fluid and heat flow structure at different conditions with fixed width of the jet and fixed distance from the heated plate and different other parameters. It is observed that the bouyancy effects are more obvious at low values of Reynolds number and plate velocity and the forced convection is dominating at high values of Re and U. At low values of the plate velocity (U/V < 0.5 with Re = 200 and Gr = 1×104) it is observed that the heat transfer is reduced due to the opposing effects of the jet flow and the flow induced by the plate on one side of the plate. However the increase of the plate velocity more than (U/V > 0.5 with Re = 200 and Gr = 1×104) the heat transfer is increased due to the combined effect of the jet flow and the stronger flow induced by the movement of the heated plate.
Enseñanza de psicoterapia en el pregrado de escuelas de medicina del Perú
Authors: Valle Rubén , Perales Alberto 
Published: July 2020

La psicoterapia es una herramienta terapéutica basada en la relación empática entre el paciente y su terapeuta, que utiliza técnicas actitudinales y verbales para lograr la recuperación de la salud. Los estudios evidencian su eficacia, y guías de práctica clínica la recomiendan en el tratamiento de problemas específicos de salud mental en el primer nivel de atención de salud. Esto significa que los médicos que trabajan en este nivel debieran conocer las indicaciones y uso de esta valiosa herramienta terapéutica. En el Perú, un gran porcentaje de médicos que trabajan en este primer nivel son médicos recién egresados que realizan el Servicio Rural Urbano Marginal. Estos profesionales atenderán problemas prevalentes de salud mental, tales como depresión, ansiedad y problemas de violencia en su primera experiencia como profesionales de salud (4). Por ello, resulta importante que las facultades de medicina capaciten adecuadamente a los estudiantes de medicina en psicoterapia.