bluuebunny/crossref_metadata_2025_split huggingface dataset:
Suzuki Coupling Reactions Catalyzed by PdO Dispersed on Dealuminated Y Zeolite in Air under Ambient Conditions
Authors: Okumura Kazu , Mushiake Takumi , Matsui Yu , Ishii Akira 
Published: March 2015

AbstractSuzuki coupling reactions are performed using PdO loaded on dealuminated Y (USY) zeolite. The reaction between bromobenzene and phenylboronic acid is complete in 15 min at room temperature in air, with a turnover number of 1300. The reaction can be repeated at least five times by using 1 wt % Pd. Inductively coupled plasma analysis does not reveal the dissolution of Pd from products, even if the reaction is repeated up to four times. Pd K‐edge extended X‐ray absorption fine structure analysis reveals the presence of molecular‐like PdO and a mixture of Pd0–PdO before and after the reaction, respectively. This is probably because Pd stabilized by Al sites is present at the II sites of the Y‐type zeolite, as estimated using first‐principles calculations. Conversely, Pd species change to PdO clusters after repeated reactions in air using the thermally treated sample.
The Relationship between Theoretical Orientation and Countertransference Expectations: Implications for Ethical Dilemmas and Risk Management
Authors: Gordon Robert M. , Gazzillo Francesco , Blake Andrea , Bornstein Robert F. , Etzi Janet , Lingiardi Vittorio , McWilliams Nancy , Rothery Cheryll , Tasso Anthony F. 
Published: March 2015

Countertransference (CT) awareness is widely considered valuable for differential diagnosis and the proactive management of ethical dilemmas. We predicted that the more practitioners' theoretical orientation (TO) emphasizes insight into the dynamics of subjective mental life, the better they will be at using their CT expectations in differential diagnosis with high‐risk patients. To test this hypothesis, we compared psychodynamic therapy (PDT) practitioners who emphasize insight into subjective mental life with practitioners who do not emphasize this epistemology. Results indicated that PDT practitioners expected significantly more CT than practitioners of cognitive–behavioural therapy (CBT) and other practitioners (e.g., family systems, humanistic/existential and eclectic) to patients with borderline personality organization overall. PDT practitioners had significantly more CT expectations to patients with borderline‐level pathologies as compared with neurotic‐level patients than both CBT and other practitioners. PDT practitioners were significantly more expectant of CT issues than CBT practitioners with respect to the personality disorders most associated with acting out and risk management problems (e.g., paranoid, psychopathic, narcissistic, sadistic, sadomasochistic, masochistic, hypomanic, passive–aggressive, counterdependent and counterphobic). The other practitioners generally had CT expectations between PDT and CBT. These findings suggest that clinical training into CT may be useful in differential diagnoses and in helping to avoid ethical dilemmas regardless of one's theoretical preference. Copyright © 2015 John Wiley & Sons, Ltd.Key Practitioner Message

Insight into countertransference can be used to help with differential diagnoses and to help prevent possible management problems with acting out patients. The Psychodynamic Diagnostic Manual is a useful taxonomy in that it includes countertransference as a diagnostic aid.
Tailoring the Properties of Ammine Metal Borohydrides for Solid‐State Hydrogen Storage
Authors: Jepsen Lars H. , Ley Morten B. , Filinchuk Yaroslav , Besenbacher Flemming , Jensen Torben R. 
Published: March 2015

AbstractA series of halide‐free ammine manganese borohydrides, Mn(BH4)2⋅nNH3, n=1, 2, 3, and 6, a new bimetallic compound Li2Mn(BH4)4⋅6NH3, and the first ammine metal borohydride solid solution Mg1−xMnx(BH4)2⋅6NH3 are presented. Four new crystal structures have been determined by synchrotron radiation powder X‐ray diffraction and the thermal decomposition is systematically investigated for all the new compounds. The solid‐gas reaction between Mn(BH4)2 and NH3 provides Mn(BH4)2⋅6NH3. The number of NH3 per Mn has been varied by mechanochemical treatment of Mn(BH4)2⋅6NH3‐Mn(BH4)2 mixtures giving rise to increased hydrogen purity for n/m≤1 for M(BH4)m⋅nNH3. The structures of Mg(BH4)2⋅3NH3 and Li2Mg(BH4)4⋅6NH3 have been revisited and new structural models are presented. Finally, we demonstrate that ammonia destabilizes metal borohydrides with low electronegativity of the metal (χp<∼1.6), while metal borohydrides with high electronegativity (χp>∼1.6) are generally stabilized.
A phase synchronization control scheme for LCL‐T type high‐frequency current source in parallel connection
Authors: Zeng Jun , Liu Junfeng , Yang Jinming , Luo Fei , Cheng K. W. Eric. 
Published: March 2015

SummaryConsidering the applications of high voltage gate driving system and contactless power transmission, a current‐based power distribution is adopted as a kind of replacement of voltage based high‐frequency Alternating Current (AC) power distribution system. In order to implement high‐frequency current source, an LCL‐T resonant inverter is examined with constant current characteristic and high conversion efficiency. First, the resonant topology is studied as a high‐frequency power source, including circuit principle, operational cycle analysis, and AC analysis. The effective control and high conversion efficiency are both achieved by LCL‐T resonant inverter. Second, the phase angle control scheme is explored to improve the synchronization performance in parallel system formed by multiple of LCL‐T resonant inverters. Lastly, a prototype of parallel system is evaluated by simulation and experiment results, both of which are constructed by two resonant inverters with rated peak current of 2 A, rated output frequency of 30 kHz, and rated output power of 100 W. The experimental results in accordance with simulation prove that the better phase synchronization of output currents is achieved by the phase angle control. Hence, the high‐frequency resonant topology and phase control scheme are a feasible realization of current source that can be used to feed current‐based high‐frequency power distribution system. Copyright © 2015 John Wiley & Sons, Ltd.Index Terms—high‐frequency AC (HFAC), power distribution system (PDS), LCL‐T resonant inverter, current source, phase angle control.
Design of ultra low‐power RF oscillators based on the inversion coefficient methodology using BSIM6 model
Authors: Guitton G. , Mangla A. , Chalkiadaki M.‐A. , Fadhuile F. , Taris T. , Enz C. 
Published: March 2015

SummaryThis paper presents a fast and accurate way to design and optimize LC oscillators using the inversion coefficient (IC). This methodology consists of four steps: linear analysis, nonlinear analysis, phase noise analysis, and optimization using a figure of merit. For given amplitude of oscillation and frequency, we are able to determine all the design variables in order to get the best trade‐off between current consumption and phase noise. This methodology is demonstrated through the design of Pierce and cross‐coupled oscillators and has been verified with BSIM6 metal oxide semiconductor field effect transistor compact model using the parameters of a commercial advanced 40 nm complementary metal oxide semiconductor process. Copyright © 2015 John Wiley & Sons, Ltd.
Ferrocenyl–Bipyridinium Cations and Their Platinum Complexes Related to Viologens – Preparation, Redox Properties, and Crystal Structures
Authors: Mochida Tomoyuki , Funasako Yusuke , Nezu Yukiko , Hagiwara Koji , Horikoshi Ryo 
Published: March 2015

AbstractN‐R1‐N′‐R2‐4,4′‐Bipyridinium and N‐R1‐4,4′‐bipyridinium salts containing ferrocenyl substituents were prepared as donor–acceptor compounds (R1 = ferrocenyl, ferrocenylphenyl; R2 = ferrocenyl, ferrocenylphenyl, phenyl, methyl). Platinum(II)‐bridged diferrocene compounds were prepared by using the N‐R1‐4,4′‐bipyridinium ligands. These compounds display multistage redox properties. The redox potentials of the ferrocenyl and bipyridinium moieties in these compounds are independently affected by molecular modifications, which indicates that conjugation between the donor and acceptor moieties is less effective. Single‐crystal X‐ray diffraction analyses revealed large twist angles between the two moieties in the solid state. The compounds exhibit broad charge‐transfer absorption bands in the range 450–800 nm. No electronic communication was observed between the terminal ferrocenes in the diferrocene complexes.
Synthesis of Polysubstituted Pyrroles from Activated Alkynes and N‐Propargylamines through Base‐Catalyzed Cascade Reaction
Authors: Weng Jianquan , Chen Yong , Yue Binjie , Xu Meng , Jin Hongwei 
Published: March 2015

AbstractA novel K3PO4‐catalyzed synthesis of polysubstituted pyrroles by a Michael addition/alkyne carbocyclization of activated alkynes and N‐propargylamines has been developed. This transition‐metal‐free cascade process represents an environmental friendly and efficient way to construct polysubstituted pyrroles in good yields. Catalyzed by CsF, a Michael addition/aza‐Claisen rearrangement/cyclization sequential process has been achieved to selectively synthesize pyrroles in moderate yields.
Square‐Wave Voltammetry as Analytical Tool for Real‐Time Study of Controlled Naproxen Releasing from Cellulose Derivative Materials
Authors: Fonseca Wilson T. , Santos Rodrigo F. , Alves Janainne N. , Ribeiro Sabrina D. , Takeuchi Regina M. , Santos André L. , Assunção Rosana M. N. , Filho Guimes R. , Muñoz Rodrigo A. A. 
Published: March 2015

AbstractThis work reports the successful use of square‐wave voltammetry (SWV) to directly assess the controlled releasing profile of naproxen from lab‐made cellulose derivative materials (membranes and microparticles) in phosphate buffer (pH 7.4) at 36 °C. Particular advantage of SWV refers to the direct real‐time monitoring of released drug from cellulose derivative microparticles, which cannot be easily assessed by UV‐spectrophotometry. Moreover, SWV was able to detect modifications in the naproxen releasing profile due to morphology and processing of membranes and microparticles. The possible miniaturization and versatility of SWV suggest the promising application on the study of several drug delivery systems, including in vivo studies.
Experimental analysis on the impact force of viscous debris flow
Authors: Cui Peng , Zeng Chao , Lei Yu 
Published: March 2015

AbstractA miniaturized flume experiment was carried out to measure impact forces of viscous debris flow. The flow depth (7.2–11.2 cm), velocity (2.4–5.2 m/s) and impact force were recorded during the experiment. The impact process of debris flow can be divided into three phases by analyzing the variation of impact signals and flow regime. The three phases are the sudden strong impact of the debris flow head, continuous dynamic pressure of the body and slight static pressure of the tail. The variation of impact process is consistent with the change in the flow regime. The head has strong–rapid impact pressure, which is shown as a turbulent‐type flow; the body approximates to steady laminar flow. Accordingly, the process of debris flows hitting structures was simplified to a triangle shape, ignoring the pressure of the tail. In order to study the distribution of the debris flow impact force at different depths and variation of the impact process over time, the impact signals of slurry and coarse particles were separated from the original signals using wavelet analysis. The slurry's dynamic pressure signal appears to be a smooth curve, and the peak pressure is 12–34 kPa when the debris flow head hits the sensors, which is about 1.54 ± 0.36 times the continuous dynamic pressure of the debris flow body. The limit of application of the empirical parameter α in the hydraulic formula was also noted. We introduced the power function relationship of α and the Froude number of debris flows, and proposed a universal model for calculating dynamic pressure. The impact pressure of large particles has the characteristic of randomness. The mean frequency of large particles impacting the sensor is 210 ± 50–287 ± 29 times per second, and it is 336 ± 114–490 ± 69 times per second for the debris flow head, which is greater than that in the debris flow body. Peak impact pressure of particles at different flow depths is 40–160 kPa, which is 3.2 ± 1.5 times the impact pressure of the slurry at the bottom of the flow, 3.1 ± 0.9 times the flow in the middle, and 3.3 ± 0.9 times the flow at the surface. The differences in impact frequency indicate that most of the large particles concentrate in the debris flow head, and the number of particles in the debris flow head increases with height. This research supports the study of solid–liquid two phase flow mechanisms, and helps engineering design and risk assessment in debris flow prone areas. Copyright © 2015 John Wiley & Sons, Ltd.
Ecotoxicity of multiwalled carbon nanotubes: Standardization of the dispersion methods and concentration measurements
Authors: Cerrillo Cristina , Barandika Gotzone , Igartua Amaya , Areitioaurtena Olatz , Marcaide Arrate , Mendoza Gemma 
Published: March 2015

Abstract

There are currently a variety of applications for multiwalled carbon nanotubes (MWCNTs), but considerable concerns exist regarding their release into the environment. Their potential accumulation by aquatic organisms could lead to transfer throughout food chains. Considering the divergences in experimental data published on the ecotoxicity of carbon nanotubes, further research is required. The dispersion of MWCNTs in aqueous culturing media of organisms as well as the determination of concentrations are relevant aspects to obtain accurate ecotoxicity results. Ultraviolet-visible spectroscopy is one of the most reported techniques to analyze concentration quickly and economically, but the methodologies to prepare dispersions and selecting the wavelengths for ultraviolet-visible measurements have not yet been clearly defined. The present study demonstrates that dispersion procedures influence absorbance, and an approach to determine the most appropriate measurement wavelength is proposed. Ecotoxicity tests with MWCNTs were performed on Vibrio fischeri bacteria, and divergences in the results were observed with respect to those previously reported. The present study contributes to the attempt to overcome the lack of standardization in the environmental assessment of MWCNTs. Environ Toxicol Chem 2015;34:1854–1862. © 2015 SETAC
Congestion and overload control techniques in massive M2M systems: a survey
Authors: Ferdouse Lilatul , Anpalagan Alagan , Misra Sudip 
Published: March 2015

AbstractSmart applications, Internet of things, cloud computing technologies are becoming connected together by autonomous and intelligent devices. Communication among those devices, called machine‐type communication (MTC) can be done through cellular networks. A cellular network typically handles both voice and data traffic. Cellular based machine‐to‐machine (M2M) communication utilises cellular infrastructure to convey their information among MTC devices. Although MTC devices generate small amount of data traffic, massive amount of MTC devices create overload problem which hugely impacts the radio access and core networks of the cellular system. This article discusses M2M systems, its various applications, architectural requirements, functionalities, services and features from congestion and overload control point of view. In particular, a survey of congestion control problem in M2M systems and its various solutions are discussed in this article. Copyright © 2015 John Wiley & Sons, Ltd.
Characterization of highly under‐ventilated fires using the cone calorimeter
Authors: Fourneau Charles , Delvosalle Christian , Breulet Hervé , Brohez Sylvain 
Published: March 2015

SummaryThe cone calorimeter, originally designed with an ‘open configuration‘, may be used in combination with a closed‐combustion chamber in order to test specimens in oxygen‐depleted atmospheres (air vitiation effect) or in fuel‐rich combustion (ventilation effect). However, highly under‐ventilated conditions are not achievable, as a consequence of an overconsumption of oxygen due to the incomplete confinement of the flame and imperfections in the air tightness of the combustion volume. In this work, these issues were solved by lowering the combustion zone, in order to fit a 600 mm chimney on the top of the controlled‐atmosphere chamber, and further improving the sealing of the whole setup. n‐Heptane was used as a reference fuel, and its combustion properties were determined in under‐ventilated conditions. The yields of main combustion species correlated well with the global equivalence ratio, for values of Φ up to three. The use of a Fourier‐transform infrared spectrometer allowed further refinement of the total unburned‐fraction composition. The relative concentration of species like methane, ethylene, or acetylene was shown to be relatively constant over the range of under‐ventilated conditions. Copyright © 2015 John Wiley & Sons, Ltd.
Preparation and characterization of nanoemulsions stabilized by food biopolymers using microfluidization
Authors: Zhang Jian , Peppard Terry L. , Reineccius Gary A. 
Published: March 2015

AbstractEmulsions are widely used in beverage products and typically impart cloudiness to the beverage. Nanoemulsions have the potential to provide a transparent appearance to the beverage. The objective of the present study was to investigate the formation of nanoemulsions using food biopolymers and its potential for clear beverage applications. The biopolymers chosen for study were Gum Arabic (GA), modified gum arabic (MGA), whey protein isolate (WPI) and modified starch (Purity Gum 2000, MS). Weighted orange oil terpenes (OT) and medium chain triglycerides (MCT) were used as the dispersed phase. Nanoemulsions were characterized by dynamic light scattering (DLS), cryogenic scanning electron microscopy (Cryo‐SEM) and turbidimeter. Except for the WPI stabilized nanoemulsions, higher homogenization pressures (up to 22 000 psi) and a greater number of passes (up to 7) through a Microfluidizer® produced nanoemulsions with a smaller mean droplet diameter in volume (MDD, dV). MS showed the best performance of the food biopolymers resulting in a MDD as small as 77 nm and a corresponding turbidity of 72 NTU (Nephelometric Turbidity Units) at 0.05% of the dispersed phase, whereas GA produced emulsions with the largest MDD. The MDD of MS stabilized nanoemulsions decreased with increasing MS concentrations (from 5 to 25 wt %). The effect of oil types on MDD was complex being dependent on the emulsifier and homogenization pressure. Turbidity of diluted nanoemulsions increases with MDD within the range of 70–300 nm. This study shows food biopolymers can be used to produce nanoemulsions using microfluidization under a high pressure. It was also demonstrated that nanoemulsions with a MDD < 100 nm can provide a clear appearance in beverage applications. The results provide an understanding of how manufacturing parameters and formulation influence the formation of nanoemulsions. Copyright © 2015 John Wiley & Sons, Ltd.
Cognitive dysfunction in patients with very mild Alzheimer's disease and amnestic mild cognitive impairment showing hemispheric asymmetries of hypometabolism on 18F‐FDG PET
Authors: Murayama Norio , Ota Kazumi , Kasanuki Koji , Kondo Daizo , Fujishiro Hiroshige , Fukase Yuko , Tagaya Hirokuni , Sato Kiyoshi , Iseki Eizo 
Published: March 2015

ObjectiveWe investigated cognitive dysfunction in patients with Alzheimer's disease (AD) and amnestic mild cognitive impairment (aMCI) who present hemispheric asymmetries of cerebral metabolic rate of glucose (CMRglc) decrease on 18F‐fluorodeoxyglucose positron emission tomography.MethodsBased on the hemispheric asymmetries of CMRglc decrease in the posterior cingulate cortex, precuneus, and parietotemporal cortex, the patients were divided into three groups (a left‐dominant hypometabolism group, a right‐dominant hypometabolism group, and a non‐dominant hypometabolism group). CMRglc decrease in the whole brain was controlled among the three groups. All the patients underwent mini‐mental state examination (MMSE), Wechsler Memory Scale‐Revised (WMS‐R), and Wechsler Adult Intelligent Scale‐Third (WAIS‐III).ResultsThere were no significant differences in MMSE and WAIS‐III scores among the three groups. In WMS‐R, the results indicated that the left‐dominant group demonstrated significantly lower scores in verbal memory than the other two groups. Furthermore, the left‐dominant group had a greater tendency to be diagnosed with AD rather than aMCI.ConclusionsPatients with AD and aMCI showing left‐dominant hypometabolism tend to show severer impairment in verbal memory function and to be diagnosed with AD dementia. Copyright © 2015 John Wiley & Sons, Ltd.
Pigmented villonodular synovitis of the temporomandibular joint: Case report and review of the literature
Authors: Damodar Dhanur , Chan Nadia , Kokot Niels 
Published: March 2015

AbstractBackgroundWe present a case of a 51‐year‐old male patient with pigmented villonodular synovitis (PVNS) of the left temporomandibular joint (TMJ) that initially presented as a slow‐growing left facial mass. Upon further workup, a contrast‐enhanced CT scan demonstrated an expansile soft tissue mass in the left TMJ.MethodsThe lesion was diagnosed through fine‐needle aspiration biopsy. The patient was treated with resection of the TMJ, temporal bone, and root of the zygoma. A temporalis muscle and temporoparietal fascia flap was used for reconstruction to fill the defect and provide contour.ResultsPostoperatively, the patient has been tumor free with excellent cosmesis. Our case demonstrates a very successful outcome.ConclusionPrevious literature has also reported that complete excision is an ideal procedure for PVNS of TMJ, but temporalis rotational flap use has been rare. This case and previously reported cases in the literature are also reviewed. © 2015 Wiley Periodicals, Inc. Head Neck 37: E194–E199, 2015
Good tolerance and long‐term complete remission after definitive intensity‐modulated radiotherapy for locally advanced head and neck cancer in a patient with human immunodeficiency virus infection: A case report and literature review
Authors: Chen Wan‐Yu , Kuo Sung‐Hsin , Shen Chia‐Wei , Huang Bing‐Shen , Lan Keng‐Hsueh , Liang Hsiang‐Kuang , Wang Chun‐Wei 
Published: March 2015

AbstractBackgroundThe main concerns with radiation therapy for head and neck cancer in human immunodeficiency virus (HIV)‐infected patients include limited tumor response and profound mucosal or skin toxicities under severe immunocompromised status.MethodsIn this study, we describe the clinicopathological features, chronological changes in HIV viral loads and CD4 counts, and treatment outcomes of definitive radiotherapy for locally advanced head and neck cancer in an HIV‐infected patient.ResultsDespite low CD4 counts (80 cells/µL), a combination of highly active antiretroviral therapy (HAART) and definitive concurrent chemoradiotherapy (70 Gy of simultaneously integrated boost intensity‐modulated radiotherapy (IMRT), fluorouracil, and leucovorin) was well‐tolerated. Grade 3 mucositis and dermatitis were resolved 2 weeks after treatment completion. The patient was alive and remained disease‐free 31 months after treatment.ConclusionFor patients with HIV diagnosed with locally advanced head and neck cancer, good tolerance and outcome can be achieved with definitive radiotherapy while on HAART. © 2015 Wiley Periodicals, Inc. Head Neck 37: E186–E190, 2015