bluuebunny/crossref_metadata_2025_split huggingface dataset:
Reactivity of ceria–zirconia catalysts for the catalytic wet peroxidative oxidation of azo dyes: reactivity and quantification of surface Ce(IV)‐peroxo species
Authors: Issa Hamoud Houeida , Azambre Bruno , Finqueneisel Gisèle 
Published: October 2015

AbstractBACKGROUNDDoping nanoceria with zirconia often leads to improved catalytic properties due to enhanced concentration of structural defects in the resulting materials. This study aims to identify the parameters and mechanisms governing the reactivity of well‐characterized commercial ceria–zirconia (CexZr1‐xO2) nanocatalysts with various Ce contents (x = 1, 0.80, 0.50, 0.21, 0) or surface area towards the degradation of Orange II dye in the presence of H2O2.RESULTSDiscoloration and mineralization kinetics were found to be strongly related both to the composition and surface area of the single or mixed oxides. Under standard conditions (23 °C, dark, stoichiometric concentration in H2O2), the best discoloration and mineralization performances were achieved for pure ceria (100% of color removal in 2 h and 65% mineralization in 8 h), but this arises mainly from its higher specific area by comparison with Zr‐doped materials.For the first time, the amount of CeIV(O2)2− surface species, intermediates in the production of hydroxyl radicals and generated from the reaction of H2O2 with Ce(III) sites, was quantitated using TPD‐MS in order to provide a rational basis to explain the catalytic performance.CONCLUSIONDoping ceria with Zr increases the surface density of defective Ce(III) sites that can be converted to CeIV(O2)2− species in the presence of H2O2, but other parameters, such as the specific surface area and surface Ce content of the catalysts, are also important. An in‐depth mechanism for the reaction of H2O2 on the ceria–zirconia surface is discussed based on the experimental results. © 2015 Society of Chemical Industry
CHANGE DETECTION, MULTIPLE CONTROLLERS, AND DYNAMIC ENVIRONMENTS: INSIGHTS FROM THE BRAIN
Authors: Pearson John M. , Platt Michael L. 
Published: October 2015

AbstractFoundational studies in decision making focused on behavior as the most accessible and reliable data on which to build theories of choice. More recent work, however, has incorporated neural data to provide insights unavailable from behavior alone. Among other contributions, these studies have validated reinforcement learning models by demonstrating neural signals posited on the basis of behavioral work in classical and operant conditioning. In such models, the values of actions or options are updated incrementally based on the difference between expectations and outcomes, resulting in the gradual acquisition of stable behavior. By contrast, natural environments are often dynamic, including sudden, unsignaled shifts in reinforcement contingencies. Such rapid changes may necessitate frequent shifts in behavioral mode, requiring dynamic sensitivity to environmental changes. Recently, we proposed a model in which cingulate cortex plays a key role in detecting behaviorally relevant environmental changes and facilitating the update of multiple behavioral strategies. Here, we connect this framework to a model developed to handle the analogous problem in motor control. We offer a tentative dictionary of control signals in terms of brain structures and highlight key differences between motor and decision systems that may be important in evaluating the model.
Impact of vendor computerized physician order entry on patients with renal impairment in community hospitals
Authors: Leung Alexander A. , Schiff Gordon , Keohane Carol , Amato Mary , Simon Steven R. , Cadet Bismarck , Coffey Michael , Kaufman Nathan , Zimlichman Eyal , Seger Diane L. , Yoon Catherine , Bates David W. 
Published: October 2015

BACKGROUNDAdverse drug events (ADEs) are common among hospitalized patients with renal impairment.OBJECTIVETo determine whether computerized physician order entry (CPOE) systems with clinical decision support capabilities reduce the frequency of renally related ADEs in hospitals.DESIGN, SETTING, AND PATIENTSQuasi‐experimental study of 1590 adult patients with renal impairment who were admitted to 5 community hospitals in Massachusetts from January 2005 to September 2010, preimplementation and postimplementation of CPOE.INTERVENTIONVarying levels of clinical decision support, ranging from basic CPOE only (sites 4 and 5), rudimentary clinical decision support (sites 1 and 2), and advanced clinical decision support (site 3).MEASUREMENTSPrimary outcome was the rate of preventable ADEs from nephrotoxic and/or renally cleared medications. Similarly, secondary outcomes were the rates of overall ADEs and potential ADEs.KEY RESULTSThere was a 45% decrease in the rate of preventable ADEs following implementation (8.0/100 vs 4.4/100 admissions; P < 0.01), and the impact was related to the level of decision support. Basic CPOE was not associated with any significant benefit (4.6/100 vs 4.3/100 admissions; P = 0.87). There was a nonsignificant decrease in preventable ADEs with rudimentary clinical decision support (9.1/100 vs 6.4/100 admissions; P = 0.22). However, substantial reduction was seen with advanced clinical decision support (12.4/100 vs 0/100 admissions; P = 0.01). Despite these benefits, a significant increase in potential ADEs was found for all systems (55.5/100 vs 136.8/100 admissions; P < 0.01).CONCLUSIONVendor‐developed CPOE with advanced clinical decision support can reduce the occurrence of preventable ADEs but may be associated with an increase in potential ADEs. Journal of Hospital Medicine 2013;8:545–552. © 2013 Society of Hospital Medicine
Our ASHRM journey continues: ERM for our patients' safety
Authors: Oppenberg Andrew A. 
Published: October 2015

AbstractFirst and foremost, as your 2013 ASHRM president, I'd like to thank you for all of the significant accomplishments you've helped ASHRM attain this year. And I'll be forever grateful for your support and making my personal and professional dream come true—to serve as your president. Advocating on behalf of all healthcare risk managers and furthering the quest of Getting to Zero for our patients' safety through Enterprise Risk Management, or ERM, has been an honor, because everyone is a risk manager!
A red‐flag‐based approach to risk management of EHR‐related safety concerns
Authors: Sittig Dean F. , Singh Hardeep 
Published: October 2015

AbstractAlthough electronic health records (EHRs) have a significant potential to improve patient safety, EHR‐related safety concerns have begun to emerge. Based on 369 responses to a survey sent to the memberships of the American Society for Healthcare Risk Management and the American Health Lawyers Association and supplemented by our previous work in EHR‐related patient safety, we identified the following common EHR‐related safety concerns: (1) incorrect patient identification; (2) extended EHR unavailability (either planned or unplanned); (3) failure to heed a computer‐generated warning or alert; (4) system‐to‐system interface errors; (5) failure to identify, find, or use the most recent patient data; (6) misunderstandings about time; (7) incorrect item selected from a list of items; and (8) open or incomplete orders. In this article, we present a “red‐flag”‐based approach that can be used by risk managers to identify potential EHR safety concerns in their institutions. An organization that routinely conducts EHR‐related surveillance activities, such as the ones proposed here, can significantly reduce risks associated with EHR implementation and use.
Developing Dedicated Service Employees
Authors: Perry Sara J. , Witt L. A. , Callison Kori , Malka Ari 
Published: October 2015

AbstractWe studied the joint associations of two service‐oriented resources—psychological climate for service and perceived internal service—with work dedication among customer‐service employees. In a cross‐sectional survey study of 1,377 retail bank employees, we found support for all three hypotheses. First, psychological climate and internal service were each positively associated with dedication. Internal service also moderated the climate–dedication relationship. The strongest positive relationship emerged when perceived internal service was high. That is, the most dedicated employees experienced high levels of psychological climate and high internal service, and the highest overall levels of dedication occurred among employees perceiving high levels of both climate for service and internal service. Among individuals with scores at one standard deviation below the mean of climate, internal service had essentially no relationship with dedication. In contrast, among individuals with scores at one standard deviation above the mean of climate, internal service yielded a difference of .39 standard units of dedication, which is a medium‐low effect size. In other words, differences in internal service mattered primarily among workers perceiving high levels of climate for service. Therefore, as service‐oriented resources, both service climate and internal service may be important not only to customer outcomes, but also to employees. These resources may be specific focus points for managers who aim to foster customer‐service employee dedication.
Application of visible/near‐infrared reflectance spectroscopy for predicting internal and external quality in pepper
Authors: Toledo‐Martín Eva María , García‐García María Carmen , Font Rafael , Moreno‐Rojas José Manuel , Gómez Pedro , Salinas‐Navarro María , Del Río‐Celestino Mercedes 
Published: October 2015

AbstractBACKGROUNDThe characterization of internal (°Brix, pH, malic acid, total phenolic compounds, ascorbic acid and total carotenoid content) and external (color, firmness and pericarp wall thickness) pepper quality is necessary to better understand its possible applications and increase consumer awareness of its benefits. The main aim of this work was to examine the feasibility of using visible/near‐infrared reflectance spectroscopy (VIS‐NIRS) to predict quality parameters in different pepper types. Commercially available spectrophotometers were evaluated for this purpose: a Polychromix Phazir spectrometer for intact raw pepper, and a scanning monochromator for freeze‐dried pepper.RESULTSThe RPD values (ratio of the standard deviation of the reference data to the standard error of prediction) obtained from the external validation exceeded a value of 3 for chlorophyll a and total carotenoid content; values ranging between 2.5 < RPD < 3 for total phenolic compounds; between 1.5 < RPD <2.5 for °Brix, pH, color parameters a* and h* and chlorophyll b; and RPD values below 1.5 for fruit firmness, pericarp wall thickness, color parameters C*, b* and L*, vitamin C and malic acid content.CONCLUSIONThe present work has led to the development of multi‐type calibrations for pepper quality parameters in intact and freeze‐dried peppers. The majority of NIRS equations obtained were suitable for screening purposes in pepper breeding programs. Components such as pigments (xanthophyll, carotenes and chlorophyll), glucides, lipids, cellulose and water were used by modified partial least‐squares regression for modeling the predicting equations. © 2015 Society of Chemical Industry
Knowledge‐Intensive Business Process: Deriving a Sustainable Competitive Advantage through Business Process Management and Knowledge Management Integration
Authors: Marjanovic Olivera , Freeze Ronald 
Published: October 2015

This paper adopts a holistic approach to Business Process Management (BPM) and Knowledge Management (KM) integration to describe an interesting case of a customer‐facing business process and illustrate its evolving nature, from a highly structured to knowledge‐intensive. More precisely, the paper proposes an integrated multidisciplinary framework and then uses it as a theoretical lens to analyze an organization's journey towards BPM/KM integration in the context of their knowledge‐intensive business processes.Our research findings clearly demonstrate the importance of process‐related knowledge in this company. They also illustrate how different KM aspects of the same BP were used by the organization at different points in time to determine the most appropriate strategies for value‐creation and BPM‐related competitive differentiation. They also confirm previous findings by other researchers that knowledge‐intensive processes do require a different approach to their ongoing improvement. Most importantly for the future BPM/KM research, our case demonstrates that an organization's perception of a BP could change over time (from procedural to knowledge‐intensive), as a result of an increased recognition of process‐related knowledge. This in turn creates new, yet‐to‐be explored challenges for BPM. Copyright © 2012 John Wiley & Sons, Ltd.
Autofluorescence imaging system to discriminate and quantify the distribution of benthic cyanobacteria and diatoms
Authors: Carreira Cátia , Staal Marc , Middelboe Mathias , Brussaard Corina P.D. 
Published: October 2015

AbstractObservation of benthic photoautotrophs on sediment surfaces shows a single algal layer without distinction between photosynthetic groups. Until now it has not been possible to distinguish between benthic photosynthetic microorganisms, i.e. cyanobacteria and diatoms, at μm to mm scales using a single nondisruptive system. Chlorophyll autofluorescence can be used to distinguish different photoautotrophic groups if the correct excitation light is applied. Using this principle, a nonintrusive technique was developed to study the spatial distribution of benthic cyanobacteria and diatoms. By means of a charge coupled device camera, diatoms and cyanobacteria could be identified by blue light (470 nm) excitation and amber light (600 nm) excitation, respectively. By this approach, diatom or cyanobacterial dominance could be easily distinguished using the blue over amber ratio. We applied this method successfully to (mixed) laboratory cultures as well as natural photosynthetic microbial mats. Cultures of the diatom Nitzschia capitellata and the cyanobacterium Geitlerinema sp. showed close correlation between autofluorescence and cell abundance. This simple and cheap imaging system allows fast observations of the fine‐scale (μm–mm) spatial heterogeneities of live benthic microbial photoautotrophs both in culture and natural photosynthetic biofilms structure (e.g., microphytobenthos and photosynthetic microbial mats). © 2014 Association for the Sciences of Limnology and Oceanography
The growth of human scalp hair mediated by visible red light laser and LED sources in males
Authors: Lanzafame Raymond J. , Blanche Raymond R. , Bodian Adam B. , Chiacchierini Richard P. , Fernandez‐Obregon Adolfo , Kazmirek Eric R. 
Published: October 2015

ABSTRACTBackground and ObjectivesLow level laser therapy (LLLT) has been used to promote hair growth. A double‐blind randomized controlled trial was undertaken to define the safety and physiologic effects of LLLT on males with androgenic alopecia.MethodsForty‐four males (18–48 yo, Fitzpatrick I–IV, Hamilton–Norwood IIa–V) were recruited. A transition zone scalp site was selected; hairs were trimmed to 3 mm height; the area was tattooed and photographed. The active group received a “TOPHAT655” unit containing 21, 5 mW lasers (655 ± 5 nm), and 30 LEDS (655 ± 20 nm), in a bicycle‐helmet like apparatus. The placebo group unit appeared identical, containing incandescent red lights. Patients treated at home every other day × 16 weeks (60 treatments, 67.3 J/cm2 irradiance/25 minute treatment), with follow up and photography at 16 weeks. A masked 2.85 cm2 photographic area was evaluated by another blinded investigator. The primary endpoint was the percent increase in hair counts from baseline.ResultsForty‐one patients completed the study (22 active, 19 placebo). No adverse events or side effects were reported. Baseline hair counts were 162.7 ± 95.9 (N = 22) in placebo and 142.0 ± 73.0 (N = 22) and active groups respectively (P = 0.426). Post Treatment hair counts were 162.4 ± 62.5 (N = 19) and 228.7 ± 102.8 (N = 22), respectively (P = 0.0161). A 39% percent hair increase was demonstrated (28.4 ± 46.2 placebo, N = 19; 67.2 ± 33.4, active, N = 22) (P = 0.001) Deleting one placebo group subject with a very high baseline count and a very large decrease, resulted in baseline hair counts of 151.1 ± 81.0 (N = 21) and 142.0 ± 73.0 (N = 22), respectively (P = 0.680). Post treatment hair counts were 158.2 ± 61.5 (N = 18) and 228.7 ± 102.8 (N = 22) (P = 0.011), resulting in a 35% percent increase in hair growth (32.3 ± 44.2, placebo, N = 18; 67.2 ± 33.4, active, N = 22) (P = 0.003).ConclusionsLLLT of the scalp at 655 nm significantly improved hair counts in males with androgenetic alopecia. Lasers Surg. Med. 45:487–495, 2013. © 2013 Wiley Periodicals, Inc.
Determination of adhesion between corrosion product film and carbon steel by a scratch test
Authors: Zhu X. L. , Lu X. F. , Ling X. 
Published: October 2015

AbstractA scratch test is used to measure the adhesion between corrosion product film (CPF) and carbon steel in deionized water under different pH and temperatures. The fuzzy feature model is modified to minimize errors between calculation and scanning electron microscopy (SEM) results. Findings illustrate that the maximum error decreases to 11%. The adhesion between CPF and substrate increases with rising temperature and pH of deionized water. The Poisson's ratio and Young's modulus of CPF are in the ranges [0.34 and 0.45] and [0.08 and 0.11 GPa], respectively, as temperature and pH change.
The OpdQ porin of Pseudomonas aeruginosa is regulated by environmental signals associated with cystic fibrosis including nitrate‐induced regulation involving the NarXL two‐component system
Authors: Fowler Randal C. , Hanson Nancy D. 
Published: October 2015

AbstractPseudomonas aeruginosa is a versatile opportunistic pathogen that causes chronic infections in immunocompromised hosts. Multiple porins modulate outer membrane permeability under various environmental conditions. The lung environment of cystic fibrosis (CF) patients is unique with changes occurring in nutrient availability, osmolarity, and oxygen content. Although P. aeruginosa gene expression is modified under these conditions, little is known about how they influence porin regulation. In this study, we evaluated the regulation of the outer membrane porin OpdQ, a member of the OprD family of porins, with regard to oxygen, nitrate, and/or NaCl levels. We demonstrated using promoter::fusion clones of P. aeruginosa PAO1 and clinical strains collected from CF patients that OpdQ was transcriptionally repressed under low oxygen but increased in the presence of nitrate. The nitrate‐induced regulation of OpdQ was found to be dependent on the transcription factor NarL via the NarXL two‐component system. In addition, NaCl‐induced osmotic stress increased OpdQ production among most of the clinical strains evaluated. In conclusion, these data identify for the first time that specific environmental cues associated with the CF microenvironment influence porin regulation, and that the nitrate‐induced regulation of OpdQ is associated with nitrate metabolism via the NarXL two‐component system of P. aeruginosa.
Tunable RF‐band optoelectronic oscillator and optoelectronic computer‐added design model for its simulation
Authors: Belkin Mikhail E. , Loparev Alexei V. , Semenova Yuliya , Farrell Gerald , Sigov Alexander S. 
Published: October 2015

AbstractA cost‐effective tunable version of optoelectronic oscillator (OEO) that overcomes the well‐known design tradeoffs in a traditional radio frequency (RF) oscillator is proposed. To validate the technique, a simple computerized model of the proposed OEO is used on the basis of commercial optoelectronic computer‐added design tool. The model correctly simulates the phase noise close to the carrier. As an example, we demonstrate a 3‐GHz OEO with simulation results that are experimentally confirmed by prototype measurements. A parametric comparison with an advanced wideband synthesizer integrated circuits (IC) is also presented. © 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett 53:2474‐2477, 2011; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26304
Experimental results of an X‐band MMIC Doherty power amplifier
Authors: Colantonio P. , Giannini F. , Giofrè R. , Piazzon L. 
Published: October 2015

AbstractThis letter deals with a GaAs monolithic microwave integrated circuit (MMIC) Doherty power amplifier (DPA) for X‐band systems.To the best of authors' knowledge, it represents the first DPA realization in the X‐band frequency range. Experimental results showed a 30‐dBm saturated output power and a drain efficiency greater than 53% at 9.5 GHz. Moreover, in the 6‐dB power back‐off (from 18 to 24 dBm input power), an amplitude modulation (AM/AM) distortion lower than 1 dB is also demonstrated with an average efficiency greater than 50%. © 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett 53:2665‐2668, 2011; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26306
Studies of dielectric constant measurements at microwave frequency using mixing equations—The analyses on five rules
Authors: Sheen Jyh , Hong Zuo‐Wen , Liu Weihsing , Mao Wei‐Lung 
Published: October 2015

AbstractThe microwave dielectric constants of ceramic dispersions in the polyethylene matrix are studied by five well‐known mixture equations in this article. Three ceramic powders of fillers with various dielectric constants at 10 GHz are investigated. The experimental dielectric constant values of the mixtures are compared to the theoretical curves of the five mixing rules. The dielectric constants of pure ceramics are then estimated by these mixing laws from the dielectric constants of composites of various filler concentrations. The theoretical errors of estimations of rules are derived and analyzed. The most adequate mixture law(s) for measuring the dielectric constants of ceramic fillers will be recommended. © 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett 53:2481–2485, 2011; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26357
Antipodal linearly tapered slot antenna with reduced mutual coupling fed by substrate integrated waveguide
Authors: Ma Han‐Qing , Feng Tao 
Published: October 2015

AbstractAn antipodal linearly tapered slot antenna fed by substrate integrated waveguide for Ku band application is presented.To reduce the mutual coupling between elements, several slots are cut both on the radiation arms and between radiation elements to chock the coupling currents. With this approach, the measured mutual coupling levels between antenna elements are reduced to lower than −27 dB within 13–17 GHz. © 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett 53:2512–2515, 2011; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26368
Investigation of A Novel Dual Band‐Notched UWB Antenna by the Equivalent Circuit Model and Time Domain Characteristics
Authors: Gao Guoping , Hu Bin , Cong Xiaodong , He Lele 
Published: October 2015

ABSTRACTIn this article, a dual band‐notched ultrawideband (UWB) antenna is investigated by the equivalent circuit model and time domain characteristics. Transmission line model and L‐C resonant circuit model of the antenna are presented. Transfer function and pulse waveforms are also studied to evaluate the proposed antenna. Experimental results show that the proposed antenna meets the requirement of wide working bandwidth of 3.1–10.6 GHz with voltage‐standing wave ratio <2, while avoiding the interference from WiMAX and 5‐GHz wireless local area network. Radiation patterns and antenna gain study show that the stable radiation characteristics at different frequencies are obtained. The proposed antenna has a compact size, good radiation characteristics, and UWB behaviors to satisfy the requirement of the current UWB wireless communications systems. © 2013 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:2993–3000, 2013