bluuebunny/crossref_metadata_2025_split huggingface dataset:
Influence of Ta2O5 Doping on Electrical and Dielectric Properties of Nanocrystalline NiCuZn Spinel Ferrite
Authors: Patil A. D. , Kamble S. R. , Ramshetti R. S. , Jadhav S. P. , Algude S. G. , Patil A. B. , Shinde T. J. , Patange Sunil M. 
Published: October 2020

AbstractThe nanocrystalline Ni0.4Cu 0.3Zn0.3Fe2O4ferrite is prepared by sol–gel method by doping Ta2O5 (0 to 10 wt%). This paper presents effect of Ta2O5 doping on electrical and dielectric properties of nanocrystalline NiCuZn ferrite. The XRD patterns of the synthesized samples reveal single phase cubic structure and show the secondary phase of FeTaO4 with increasing Ta2O5 composition. From FESEM, agglomeration of spherical particles is observed. Direct current electrical resistivity is measured by two probe method. The investigated ferrite samples exhibits semiconducting nature property as resistivity decreased with the increase in temperature. The variation of dielectric constant and dielectric loss tangent for all samples are presented as a function of the frequency. The result also shows that as frequency is increased there is an increase in alternating current conductivity at room temperature.
Biofabrication of Silver Nanoparticles Using Hibiscus cannabinus Leaf Extract and Their Antibacterial Activity
Authors: Kharade Suvarta , Mane‐Gavade Shubhangi , Mali Sunil , Shirote Suryakant , Malgave Sandip , Nikam Gurunath 
Published: October 2020

AbstractThe article presents an eco‐friendly approach for the biogenic synthesis of silver nanoparticles (AgNPs) from an aqueous AgNO3 solution by using the Hibiscus cannabinus leaf extract (HCLE) as reducing and stabilizing agent. Reduction of Ag+ ions by HCLE is examined by UV–Visible absorption spectra. The surface plasmon resonance band is observed at 420–460 nm. To recognize the functional group responsible for reduction of Ag+ ions, the HCLE is characterized by Fourier transform infrared spectroscopy. Spherical shaped AgNPs with average particles size 20 nm is confirmed using transmission electron microscopy. The biosynthesized AgNPs displayed distinctive antibacterial activities against both gram positive and gram negative microorganisms. The AgNPs synthesized using HCLE have the potential application in the field of biomedicine.
Cobalt‐Doped Nickel Aluminate Nanomaterials Synthesis, Characterization, and Catalytic Properties
Authors: Patil Prakash S. , Dhivare Ravindra S. , Mirgane Sunil R. , Pawar Bharat G. , Mane Tanaji R. 
Published: October 2020

AbstractThe nanoaluminate spinel Ni1‐xCoxAl2O4 (x = 0.0, 0.25, 0.50, 0.75, 1.0) is effectively synthesized through the use of glycine fuel utilizing a sol–gel combustion heating technique. Nanostructured nickel aluminates nonmaterials, cobalt aluminates, and their variable part spinel structures are calcinated by diligent temperature. The effect of Co2+ ions on the NiAl2O4 force network has contributed to a significant role in the modification and evolution of thermal, spectroscopic, structural, morphological, elementary, and then catalytic behaviors of cobalt‐doped nickel aluminates. It is observed that the synthesized aluminum content serves as an effective nanocatalyst for the processing of higher‐yielding organic compounds. Such methods are then checked to be effective for analyzing the premeditated processes that generated the majority of outcomes.
An Assay of Electrodeposited Cobalt Oxide Thin Film as a Supercapacitor Electrode
Authors: Gavande Shivani S. , Kulkarni Pramod S. , Patil Vikas B. , Karche Bhanudas R. , Gavande Shubhangi S. 
Published: October 2020

AbstractThe present research work is a humble effort to synthesize cobalt oxide supercapacitive electrode by electrodeposition method via potentiostatic mode of thin film deposition. The cobalt hydroxide material is deposited on stainless steel substrate at room temperature and annealed at 500°C to form cobalt oxide thin film electrode. The structural, morphological, and wettability investigation of the as‐deposited cobalt oxide thin film electrode is done by XRD‐analysis, SEM characterization, and contact angle measurement, respectively. The supercapacitive properties are investigated in aqueous 1M Na2SO4 electrolyte by cyclic voltametry and galvanostatic charge–discharge analysis. The results of the investigations are maximum specific capacitance of 284.4 F g−1 at a scan rate 5 mV s−1, specific energy 4.325 Wh kg−1, specific power 3 kW kg−1, and Coulomb efficiency 53.75%. The results so obtained promote cobalt oxide to be a challenging material for energy storage devices and supercapacitor applications.
Microstructure and Magnetic Properties of Ni‐Mg‐Zn‐Co Ferrites
Authors: Patil Sarjerao B. , Davari Anil J. , Patil Devidas R. , Patil Rajendra P. 
Published: October 2020

AbstractPreparation of Ni‐Mg‐Zn‐Co ferrites having general formula Ni0.5‐x Mgx‐0.01 Zn0.5‐y Coy+0.01 Fe2O4 (where x = 0.1, 0.2, 0.3, 0.4 and y = 0.1, 0.2, 0.3, 0.4) is carried out by conventional ceramic method. The X‐ray diffraction studies of compositions reveal the formation of single‐phase cubic spinel. The lattice parameter “a,” bond lengths RA, RB, and site radii rA, rB are found to increase linearly with increase in Zn content. The average grain diameter determined from scanning electron microscopy studies is found to increase with Ni content. The magnetic moment (μB) increases on addition of Zn. However, it decreases beyond Zn = 0.4. The lower values of hc and Mr/Ms show the existence of MD particles in the samples. The value of μB lie in the range of 0.85 to 1.09 and saturation magnetization (4πMs) varies between 834 and 1115 emu g‐1. It is observed that μB and Ms increase with Zn content upto Zn = 0.3 and then decrease. The cation distribution is proposed on the basis of site preference energies of the ions. Initial permeability increases slowly to the peak value at a certain temperature and drops abruptly to zero at the Curie temperature. The Curie temperature is found to decrease with increase in Zn content.
Compress‐and‐restart block Krylov subspace methods for Sylvester matrix equations
Authors: Kressner Daniel , Lund Kathryn , Massei Stefano , Palitta Davide 
Published: October 2020

SummaryBlock Krylov subspace methods (KSMs) comprise building blocks in many state‐of‐the‐art solvers for large‐scale matrix equations as they arise, for example, from the discretization of partial differential equations. While extended and rational block Krylov subspace methods provide a major reduction in iteration counts over polynomial block KSMs, they also require reliable solvers for the coefficient matrices, and these solvers are often iterative methods themselves. It is not hard to devise scenarios in which the available memory, and consequently the dimension of the Krylov subspace, is limited. In such scenarios for linear systems and eigenvalue problems, restarting is a well‐explored technique for mitigating memory constraints. In this work, such restarting techniques are applied to polynomial KSMs for matrix equations with a compression step to control the growing rank of the residual. An error analysis is also performed, leading to heuristics for dynamically adjusting the basis size in each restart cycle. A panel of numerical experiments demonstrates the effectiveness of the new method with respect to extended block KSMs.
Parallel performance of algebraic multigrid domain decomposition
Authors: Mitchell Wayne B. , Strzodka Robert , Falgout Robert D. 
Published: October 2020

SummaryAlgebraic multigrid (AMG) is a widely used scalable solver and preconditioner for large‐scale linear systems resulting from the discretization of a wide class of elliptic PDEs. While AMG has optimal computational complexity, the cost of communication has become a significant bottleneck that limits its scalability as processor counts continue to grow on modern machines. This article examines the design, implementation, and parallel performance of a novel algorithm, algebraic multigrid domain decomposition (AMG‐DD), designed specifically to limit communication. The goal of AMG‐DD is to provide a low‐communication alternative to standard AMG V‐cycles by trading some additional computational overhead for a significant reduction in communication cost. Numerical results show that AMG‐DD achieves superior accuracy per communication cost compared with AMG, and speedup over AMG is demonstrated on a large GPU cluster.
Height, weight, and cardiovascular effects of stimulants on children with brain tumors
Authors: Khan Raja B. , Bano Maha , Wang Fang , Haitao Pan , Christensen Anthony , Smith Jessica , Simmons Andrea , Sadighi Zsila S. 
Published: October 2020

AbstractIntroductionChildren with brain tumors may develop inattention, slow processing, and hypersomnia. Stimulant medications improve these problems, but their effect on growth, heart rate, and blood pressure (BP) are inadequately explored.ProcedureWe retrospectively studied children with brain tumors treated at our institution that had data available for 1 year pre and 2 years on stimulant treatment. Tumor location, gender, radiation treatment (RT), age at RT, drug type, and hormone therapy were variables of interest.ResultsWe identified 65 children (35 males) that fulfilled eligibility criteria. Focal RT was utilized in 58; 11 additionally had whole brain RT; and seven received no RT. Thirty were treated for hypersomnia and inattention, eight for hypersomnia alone, and rest for inattention. Modafinil was the first drug in 18 (27.7%), and methylphenidate in the others. Forty‐seven (72.3%), 45 (69.2%), and 49 (75.4%) were on thyroxine, cortisone, and growth hormones, respectively. There was no difference in pre‐ and post‐stimulant body mass index (BMI), heart rate, and BP. There was also no difference between modafinil and methylphenidate groups. Rate of height acquisition slowed on stimulants (P = .0096). Thyroxine treatment correlated with increase in BMI after stimulants (P = .04). Younger age (P = .0003) and higher prestimulant BMI (P = .0063) correlated with increased heart rate on stimulants, while higher age at RT (P =.016) correlated with elevated systolic BP on stimulants. No associations were found with height acquisition and diastolic BP.ConclusionStimulants are well tolerated by children with brain tumors that are appropriately managed for endocrine deficiencies, but may reduce the trajectory of height attainment.
Training pediatric hematologist/oncologists for capacity building in Ethiopia
Authors: Hailu Daniel , Fufu Hordofa Diriba , Adam Endalew Haileyesus , Karimi Mutua Doreen , Bekele Wondwessen , Bonilla Miguel , Çeliker Mahmut Yasar , Challinor Julia , Dotan Amit , Habashy Catherine , Kumar Prasanna N. , Rodriguez‐Galindo Carlos , Wali Rabia Muhammad , Weitzman Sheila , Broas Julie , Korones David N. , Alexander Thomas B. , Shad Aziza T. 
Published: October 2020

AbstractPurposeA considerable barrier to global pediatric oncology efforts has been the scarcity and even absence of trained professionals in many low‐ and middle‐income countries, where the majority of children with cancer reside. In 2013, no dedicated pediatric hematology‐oncology (PHO) programs existed in Ethiopia despite the estimated annual incidence of 6000‐12000 cases. The Aslan Project initiative was established to fill this gap in order to improve pediatric cancer care in Ethiopia. A major objective was to increase subspecialty PHO‐trained physicians who were committed to practicing locally and empowered to lead programmatic development.MethodsWe designed and implemented a PHO training curriculum to provide a robust educational and clinical experience within the existing resource‐constrained environment in Ethiopia. Education relied on visiting PHO faculty, a training attachment abroad, and extraordinary initiative from trainees.ResultsFour physicians have completed comprehensive PHO subspecialty training based primarily in Ethiopia, and all have remained local. Former fellows are now leading two PHO centers in Ethiopia with a combined capacity of 64 inpatient beds and over 800 new diagnoses per year; an additional former fellow is developing a pediatric cancer program in Nairobi, Kenya. Two fellows currently are in training. Program leadership, teaching, and advocacy are being transitioned to these physicians.ConclusionsDespite myriad challenges, a subspecialty PHO training program was successfully implemented in a low‐income country. PHO training in Ethiopia is approaching sustainability through human resource development, and is accelerating the growth of dedicated PHO services where none existed 7 years ago.
An investigation of spitefulness in violent offenders: Associations with the dark triad and emotion dysregulation
Authors: Rogier Guyonne , Roberti Alessandra , Garofalo Carlo , Velotti Patrizia 
Published: October 2020

AbstractBackgroundSpitefulness is the inclination to inflict harm to someone else even at one's own expenses. The development of a self‐report measure (the Spitefulness Scale [SS]) has fostered the investigation of the relationships between spitefulness and aggression‐related variables.ObjectiveThe present study aims to investigate the construct of spitefulness in violent offenders. Through a translation/back‐translation procedure, the SS was translated into Italian, and its psychometric properties were examined.MethodA sample of 249 male violent offenders and 172 male community participants filled out the SS, the Self‐Report Psychopathy Scale‐IV, the Difficulties in Emotion Regulation Scale and the Dirty Dozen Scale.ResultsConfirmatory factor analysis results supported the unidimensional factor structure of the SS. Further results indicated that the scale had good internal consistency and met criteria for configural invariance, partial weak invariance and partial strong invariance across samples. Correlational analyses evidenced positive and significant associations between the SS scores and measures of the dark triad and emotion dysregulation. The offender sample scored significantly higher than the community sample on the SS.ConclusionResults support the internal structure and construct validity of the SS, suggesting its potential utility for the study of the construct of spitefulness in violent offenders. © 2020 John Wiley & Sons, Ltd.
On the Wilsonian Meaning of Quantum Error Correction
Authors: Gómez César 
Published: October 2020

AbstractWe sketch a recipe to define renormalization group transformations based on Kadanoff‐Wilson block packing using a quantum error correction code. In such a case the RG transformations of the couplings are determined by the error matrix of the QEC code. In order to define the RG transformation of couplings we use Weinberg's sum rule for an error Källen Lehman function. We define an error beta function that for holographic AdS codes is conjectured to be zero. For holographic codes the relation between Weinberg's sum rule for the error Källen Lehman function and bulk locality is briefly discussed.
Androgen receptor signaling‐targeted therapy and taxane chemotherapy induce visceral metastasis in castration‐resistant prostate cancer
Authors: Iwamoto Hiroaki , Izumi Kouji , Shimada Takashi , Kano Hiroshi , Kadomoto Suguru , Makino Tomoyuki , Naito Renato , Yaegashi Hiroshi , Shigehara Kazuyoshi , Kadono Yoshifumi , Mizokami Atsushi 
Published: October 2020

AbstractBackgroundVisceral metastasis (VM), an important poor prognostic factor of prostate cancer (PC), is not commonly observed in castration sensitive status but is often observed after castration‐resistant progression. However, the site, timing of emergence, and incidence of VM in castration‐resistant patients have not yet been fully elucidated.MethodsDemographic, surgical, pathological, and follow‐up data of PC patients treated at Kanazawa University Hospital between January 2000 and December 2016 were retrospectively analyzed using their medical charts. From this data, risk factors of VM and survival of patients with VM were elucidated.ResultsOf 1364 patients, 21 (1.5%) had VM at diagnosis. Of 179 (13.1%) castration‐resistant patients, 55 experienced emergence of new VM during treatment course. Incidence of new VM, especially nonlung, such as liver and adrenal metastases, increased significantly in proportion with the number of prescribed treatments. Multivariate analysis revealed that T stage, M stage, age, and treatment history with androgen receptor (AR) signaling‐targeted agents and/or taxanes significantly increased the risk of VM. Compared with the group with VM at diagnosis, survival after diagnosis of VM following treatment was significantly shorter.ConclusionAlthough sequential use of new AR signaling‐targeted agents and taxanes for castration‐resistant PC (CRPC) is a standard treatment strategy, it often results in development of VM. Elucidating the mechanisms of VM are essential to improve survival in patients with CRPC.
Designing a parameter‐free Kullback‐Leibler information control chart for monitoring process mean shift
Authors: Chang Yu‐Ching , Li Ting‐Wei , Mastrangelo Christina 
Published: October 2020

AbstractThis paper proposes a parameter‐free Kullback‐Leibler information control chart for monitoring sustained shifts in the process mean of a normally distributed process in phase II. Two plotted statistics are provided. One is based on our backward empirical sequential test, the other is based on the maximum log‐likelihood ratio change point method. These two achieve similar performances for the control chart. The performance of the proposed chart is compared with those of the cumulative sum chart, the exponentially weighted moving average chart, and the generalized likelihood ratio (GLR) chart. The results show that our proposed chart and the GLR chart have similar performances. Both can detect a wide range of shifts in the process mean, and neither requires design parameters other than the control limits. The proposed chart outperforms GLR when the size of the shift is below 1.24 standard deviations, while GLR outperforms the proposed chart when the size of the shift is above 1.24 standard deviations.
The exponentiated power Lomax distribution and its applications
Authors: El‐Monsef Mohamed Mohamed Ezzat Abd , Sweilam Nasser Hassan , Sabry Mariam Atta 
Published: October 2020

AbstractIn this paper, a new extension of Lomax distribution called the exponentiated power Lomax (EPOLO) distribution is proposed. The proposed model accommodates monotonically increasing, decreasing, and unimodal hazard rates. A full study of the proposed model parameters using four techniques is introduced and a simulation study is performed to examine the performance of the four methods of estimation for both complete and censored data. EPOLO distribution is utilized to fit the number of revolutions of ball bearings, the tumor size of lung cancer patients, and the confirmed total deaths of the COVID‐19 in Egypt and it provides better fits than some well‐known distributions.
Successful prone positioning after recent caesarean section in severe ARDS with postpartum pulmonary haemorrhage
Authors: Phoophiboon Vorakamol , Sriprasart Thitiwat 
Published: October 2020

AbstractA 35‐year‐old Thai women (gravida 3, para 0) at 36 weeks and five days of gestation was admitted to a delivery room due to premature rupture of membrane. She was diagnosed with Escherichia coli with extended‐spectrum beta‐lactamase (ESBL) chorioamnionitis and septic shock leading to signs of fetal distress. She underwent emergency caesarean section. Post‐operatively, the patient developed severe acute respiratory distress syndrome (ARDS), disseminated intravascular coagulation (DIC), massive pulmonary haemorrhage, and intra‐abdominal bleeding. Lung protective strategy and recruitment manoeuvres were applied; however, her oxygenation and haemodynamic parameters worsened. Twenty consecutive hours of prone positioning was performed as a rescue procedure to improve patient's oxygenation and allow the patient to undertake surgical re‐exploration for abdominal compartment syndrome management safely. Neither high ventilator setting nor re‐positioning was needed after the second operation.
End‐user evaluation of software‐generated intervention planning environment for transrectal magnetic resonance‐guided prostate biopsies
Authors: Velazco‐Garcia Jose D. , Navkar Nikhil V. , Balakrishnan Shidin , Abi‐Nahed Julien , Al‐Rumaihi Khalid , Darweesh Adham , Al‐Ansari Abdulla , Christoforou Eftychios G. , Karkoub Mansour , Leiss Ernst L. , Tsiamyrtzis Panagiotis , Tsekos Nikolaos V. 
Published: October 2020

AbstractBackgroundThis study presents user evaluation studies to assess the effect of information rendered by an interventional planning software on the operator's ability to plan transrectal magnetic resonance (MR)‐guided prostate biopsies using actuated robotic manipulators.MethodsAn intervention planning software was developed based on the clinical workflow followed for MR‐guided transrectal prostate biopsies. The software was designed to interface with a generic virtual manipulator and simulate an intervention environment using 2D and 3D scenes. User studies were conducted with urologists using the developed software to plan virtual biopsies.ResultsUser studies demonstrated that urologists with prior experience in using 3D software completed the planning less time. 3D scenes were required to control all degrees‐of‐freedom of the manipulator, while 2D scenes were sufficient for planar motion of the manipulator.ConclusionsThe study provides insights on using 2D versus 3D environment from a urologist's perspective for different operational modes of MR‐guided prostate biopsy systems.
Review of remedial options for the Boat Harbour remediation project in Nova Scotia, Canada
Authors: Eichinger Lyndsay , Walker Tony R. 
Published: October 2020

AbstractBoat Harbour, located in Pictou County, Nova Scotia, Canada has been receiving industrial effluent wastewater from a nearby kraft pulp mill and chlor‐alkali plant for over 50 years. Before receiving industrial effluent wastewater, the tidal estuary was culturally significant to the nearby Pictou Landing First Nation community. The tidal estuary was known for its medicinal, recreational, ceremonial, and subsistence functions. Formally a 140‐ha natural tidal estuary, raw industrial wastewater was discharged into Boat Harbour beginning in 1967. Since inception, effluent treatment has undergone several upgrades in aeration capacity within the Boat Harbour Effluent Treatment Facility (BHETF) until the cessation of effluent discharge in 2020. Fifty years of industrial wastewater effluent discharge has resulted in widespread inorganic and organic contamination of unconsolidated sediments and surface water. Primary contaminants of concern include metals, dioxins and furans, and polycyclic aromatic hydrocarbons. The province of Nova Scotia has committed to the remediation of the BHETF, estimated to cost over $292 million CAD. The goal of the remediation program is to return Boat Harbour to its natural state as a tidal estuary to restore the historical, traditional, and recreational uses of the land. Remediation components and alternatives were rated based on technical (26%), environmental (24%), economic (22%), social (14%), and regulatory (14%) weighted indicators. Criteria weighting for the five indicator categories was determined collaboratively with stakeholders. For each design component of remediation, a list of approaches was developed along with subsequent alternatives. Approaches and alternatives were screened to eliminate options that were not technically feasible or did not align with remediation goals. The remaining feasible concepts underwent detailed review and evaluation to select Qualified Remedial Options to be shared with stakeholders for input.