bluuebunny/crossref_metadata_2025_split huggingface dataset:
Removal of Nitro Aromatic Compounds from 2,4,6‐Trinitrotoluene Red Water Using 1,2‐Ethanediamine Modified Macroporous Polystyrene Microspheres
Authors: Meng Qingqiang , Zhao Quanlin , Zhao Xu , Wu Tong , Ye Zhengfang 
Published: June 2012

AbstractTo remove nitro aromatic compounds (NACs) from 2,4,6‐trinitrotoluene (TNT) red water, large‐pore‐size (pore size = 200 nm) polystyrene (PSt) microspheres were activated with chloroacetyl chloride followed by reaction with 1,2‐ethanediamine (EDA). Fourier transform IR analyses showed that the amino group was introduced onto PSt microspheres. Determination of the total amino group and primary amino densities suggested that the imino group was the functional group of EDA–PSt. Scanning electron microscope images and mercury porosimetry measurements indicated that the pore structure was well maintained during the reaction. After adsorption with EDA–PSt, 98.5% chemical oxygen demand and 99% acute toxicity of TNT red water was removed. As shown by HPLC and GC–MS, all the neutral and acid NACs in TNT red water were removed by EDA–PSt, while the basic NACs were not. The results showed that hydrogen bonding and electrostatic attraction were involved in adsorption. The adsorbed neutral and acid NACs were eluted using methanol and 0.1 mol L−1 NaOH, respectively.
Electrochemical Characterisation of Copper Thin‐Film Formation on Polycrystalline Platinum
Authors: Berkes Balázs B. , Henry John B. , Huang Minghua , Bondarenko Alexander S. 
Published: June 2012

AbstractElectrochemically formed thin films are vital for a broad range of applications in virtually every field of modern science and technology. Understanding the film formation process could provide a means to aid the characterisation and control of film properties. Herein, we present a fundamental approach that combines two well‐established analytical techniques (namely, electrochemical impedance spectroscopy and electrogravimetry) with a theoretical approach to provide physico‐chemical information on the electrode/electrolyte interface during film formation. This approach allows the monitoring of local and overall surface kinetic parameters with time to enable an evaluation of the different modes of film formation. This monitoring is independent of surface area and surface concentrations of electroactive species and so may allow current computational methods to calculate these parameters and provide a deeper physical understanding of the electrodeposition of new bulk phases. The ability of this method to characterise 3D phase growth in situ in more detail than that obtained by conventional approaches is demonstrated through the study of a model system, namely, Cu bulk‐phase deposition on a Pt electrode covered with a Cu atomic layer (Cuad/Pt).
Ground and Electronically Excited Singlet‐State Structures of 5‐Fluoroindole Deduced from Rotationally Resolved Electronic Spectroscopy and ab Initio Theory
Authors: Brand Christian , Oeltermann Olivia , Wilke Martin , Tatchen Jörg , Schmitt Michael 
Published: June 2012

AbstractThe structure and electronic properties of the electronic ground state and the lowest excited singlet state (S1) of 5‐fluoroindole (5FI) were determined by using rotationally resolved spectroscopy of the vibration‐less electronic origin of 5FI. From the parameters of the axis reorientation Hamiltonian, the absolute orientation of the transition dipole moment in the molecular frame was determined and the character of the excited state was identified as Lb.
Recovery of Methane from Gas Hydrates Intercalated within Natural Sediments Using CO2 and a CO2/N2 Gas Mixture
Authors: Koh Dong‐Yeun , Kang Hyery , Kim Dae‐Ok , Park Juwoon , Cha Minjun , Lee Huen 
Published: June 2012

AbstractThe direct recovery of methane from massive methane hydrates (MHs), artificial MH‐bearing clays, and natural MH‐bearing sediments is demonstrated, using either CO2 or a CO2/N2 gas mixture (20 mol % of CO2 and 80 mol % of N2, reproducing flue gas from a power plant) for methane replacement in complex marine systems. Natural gas hydrates (NGHs) can be converted into CO2 hydrate by a swapping mechanism. The overall process serves a dual purpose: it is a means of sustainable energy‐source exploitation and greenhouse‐gas sequestration. In particular, scant attention has been paid to the natural sediment clay portion in deep‐sea gas hydrates, which is capable of storing a tremendous amount of NGH. The clay interlayer provides a unique chemical–physical environment for gas hydrates. Herein, for the first time, we pull out methane from intercalated methane hydrates in a clay interlayer using CO2 and a CO2/N2 gas mixture. The results of this study are expected to provide an essential physicochemical background required for large‐scale NGH production under the seabed.
Supporting multimedia applications through network redesign
Authors: Hussain Tahani H. , Marimuthu Paulvanna N. , Habib Sami J. 
Published: June 2012

SUMMARYRecent evolutions in high‐performance computing and high speed broadband Internet access have paved a way to enterprise‐wide multimedia applications, which require stern QoS from the underlying networks. In this paper, we have explored threefold studies on existing enterprise network, whereby we proposed an analytical approach to evaluate the performance of the existing network; we have examined the feasibility of existing enterprise networks to accommodate voice over Internet protocol (VoIP) services with acceptable QoS, and we have redesigned the enterprise network to accommodate VoIP services to comply with the user defined QoS. The network performance is evaluated by number of VoIP calls sustained by the network, bandwidth utilization, loss rate and latency through Network Simulation (NS‐2) tool. We have derived a cost model to show the cost‐effectiveness of VoIP services over telephonic network. For a medium‐size enterprise network of 200 clients and 9 servers, our simulation results show that the redesign improves the network performance by increasing the number of VoIP calls by 57% and decreasing bandwidth utilization and packet loss rate by 20% and 7%, respectively. Moreover, the proposed network redesign demonstrates that the network can be scalable and it can handle up to 4% increased voice calls in the future maintaining QoS standards. Copyright © 2012 John Wiley & Sons, Ltd.
Two‐pilot channel estimation scheme for amplify‐and‐forward relay networks
Authors: Zhang Chao , Ren Pinyi 
Published: June 2012

SUMMARYIn amplify‐and‐forward relay networks, the equivalent channel to the destination node is not independent of equivalent noise and the equivalent noise does not follow a Gaussian distribution. Therefore, it is difficult to directly estimate the equivalent channel based on traditional optimal rules. In this paper, we propose a two‐pilot estimation (TPE) scheme that decomposes a non‐Gaussian noise channel estimation problem into two channel estimation problems in Gaussian noise. In TPE scheme, the relay‐destination channel is first estimated by one pilot and the other pilot is used to estimate the equivalent channel with the aid of the estimated relay‐destination channel. Simulation results show that the TPE scheme can achieve less estimation error and larger system throughput than other existing channel estimators in slow fading case. Copyright © 2012 John Wiley & Sons, Ltd.
Preferred therapist characteristics in treatment of anorexia nervosa: The patient's perspective
Authors: Gulliksen Kjersti S. , Espeset Ester M.S. , Nordbø Ragnfrid H.S. , Skårderud Finn , Geller Josie , Holte Arne 
Published: June 2012

AbstractObjective:Previous research in eating disorders suggests that treatment satisfaction is closely related to the manner in which care is delivered. The present research is a systematic in depth study of health professional characteristics preferred by AN‐patients.Method:Thirty‐eight women with AN aged 18–51 were interviewed in depth using a phenomenological study design. Interviews were tape‐recorded, transcribed, and analyzed using the QSR‐NVivo7 software program.Results:Four factors associated with patients' satisfaction with their therapists were identified: “acceptance,” “vitality,” “challenge,” and “expertise.” Patients' responses suggested that treatment of AN requires therapists who are capable of using a complex set of behaviors when interacting with their patients.Discussion:There is accumulating evidence that across treatment modality, the manner in which treatment is delivered is critical to therapeutic change. Our findings increase the understanding of factors that may be associated with treatment retention, further help seeking, and overall treatment outcome. These exploratory and informant‐centered results could guide clinicians in developing a strong therapeutic alliance with AN‐patients and promote increased knowledge about the mechanisms that engage this population. © 2012 by Wiley Periodicals, Inc. (Int J Eat Disord 2012)
Recovery from anorexia nervosa includes neural compensation for negative body image
Authors: Pruis Trisha A. , Keel Pamela K. , Janowsky Jeri S. 
Published: June 2012

AbstractObjective:To examine whether frontal lobe mediated regulation of emotion permits women to recover from anorexia nervosa (AN).Method:Brain activity associated with the disruption of working memory by images of bodies was examined in women who had recovered from AN and in control women.Results:Negatively rated images were more disruptive to working memory than neutral or positively rated images in both groups; however, amygdala and fusiform activation were greater in women who had recovered from AN than in controls when viewing images of bodies during the working memory task. There were no group differences in lateral prefrontal activity. However, there was more suppression of medial prefrontal cortex activity in women who had recovered from AN in comparison to controls when negatively rated images were presented during the working memory task.Discussion:These results suggest that recovery from AN is not achieved by dampening an amygdala mediated emotional response to bodies, but instead by developing compensatory neural mechanisms that prevent emotional responses from disturbing cognition. © 2012 by Wiley Periodicals, Inc. (Int J Eat Disord 2012)
Food for thought: Comparison of citations received from articles appearing in specialized eating disorder journals versus general psychiatry journals
Authors: Soh Nerissa , Walter Garry , Touyz Stephen , Russell Janice , Malhi Gin S. , Hunt Glenn E. 
Published: June 2012

AbstractObjective:To conduct a bibliometric analysis of eating disorder journals to guide journal readers and researchers when submitting their manuscripts.Method:Several indices were used to compare journal impact and citations of articles appearing between 1996 and 2010 in six eating disorders journals and six leading general psychiatry journals.Results:The International Journal of Eating Disorders (IJED) had the highest journal impact factor (JIF, 2.278) of the six eating disorders' journals. The general psychiatry journals had higher JIFs and received more citations per eating disorder article than the specialized journals. However, IJED published the highest number of eating disorder articles between 1996 and 2010, and 35 of these articles received at least 100 citations.Discussion:Using the JIF alone to decide where to submit a manuscript is a poor strategy, as this does not take into consideration the impact an article can have within the eating disorder's field over time. © 2012 by Wiley Periodicals, Inc. (Int J Eat Disord 2012)
Microwave‐Assisted Formation of Peptide–Vitamin Conjugates
Authors: El‐Nachef Claudia , Bajaj Kiran , Koblick Jacqueline , Katritzky Alan R. 
Published: June 2012

AbstractAmino acid and peptide conjugates with vitamin B3, H, E and D3 were synthesized by using microwave irradiation in good to satisfactory yields. In addition, a novel benzotriazole‐activated biotin intermediate has been introduced, which could serve as an alternative biotinylation agent.
Renewable Silver Amalgam Film Electrode for the Determination of Dinotefuran in Spiked Carrot Juice Samples Using SW Voltammetry
Authors: Smarzewska Sylwia , Skrzypek Slawomira , Ciesielski Witold 
Published: June 2012

AbstractThe electrochemical properties of dinotefuran (DNF) were studied by SW voltammetry over the pH range 2.0–8.0 using a silver amalgam film electrode Hg(Ag)FE. The mechanism of electroreduction was analyzed. The dependence of the peak current on pH, buffer concentration, the nature of the buffer, amplitude, frequency, step potential and scan rate were investigated. The repeatability, precision and recovery of the developed method were checked. The detection and quantification limits were found to be 2.01×10−7 and 6.71×10−7 mol L−1, respectively. The standard addition method was used to determine DNF in spiked carrot juice.
Effect of changes in fine‐grained matrix on bedload sediment transport in a gravel‐bed river
Authors: Barzilai Ronel , Laronne Jonathan B. , Reid Ian 
Published: June 2012

ABSTRACTWhile clay and silt matrices of gravel‐bed rivers have received attention from ecologists concerned variously with the deteriorating environments of benthic and hyporheic organisms, their impact on sediment entrainment and transport has been explored less. A recent increase of such a matrix in the bed of Nahal Eshtemoa, an ephemeral river of the northern Negev, has more than doubled the boundary shear stress needed to initiate bedload, from 7 N m‐2 (τ* = 0.027) during the flash floods of 1991–2001 to 15 N m‐2 (τ* = 0.059) during those of 2008–2009. The relation between bedload flux and boundary shear stress continues to be well‐defined, but it is displaced. The matrix now contains a significant amount of silt and clay size material. The reasons for the increased entrainment threshold of bedload are explored. Large‐scale laser scanning of the dry bed reveals a reduction in grain‐scale morphological roughness, while artificial in situ tests of matrix integrity indicate considerable cohesion. The implications for adopting bed material sampling strategies that account for matrix development are assessed. Copyright © 2012 John Wiley & Sons, Ltd.
Market forces moving gas and electric industries toward consensus on convergence?
Authors: Reese Evan , Chesno Janna 
Published: June 2012

AbstractThe United States is becoming increasingly reliant on natural gas—fired generation to meet its electricity (power and reliability) needs.1 Perhaps once unthinkable, due in part to vast coal reserves and comparatively high natural gas prices, natural gas is now fueling more base‐load generation resources and is being used to support variable energy resources and meet the reliability needs of the electric system.2
NERC matters: What is missing from your compliance program?
Authors: Carpentier Deborah 
Published: June 2012

AbstractAn effective compliance program is key to ensuring successful compliance with the North American Electric Reliability Corporation reliability standards.1 However, many violations of the standards continue to occur, and compliance program deficiencies may contribute to such violations, because, for example, problem areas are not being identified and corrected promptly. Accordingly, while there has been much discussion over the years about what makes a good compliance program, truly effective programs remain elusive to many registered entities.
A multicenter, blinded, randomized, factorial controlled trial of doxycycline and rifampin for treatment of Alzheimer's disease: the DARAD trial
Authors: Molloy D. William , Standish T.I. , Zhou Q. , Guyatt G. ,   The DARAD Study Group
Published: June 2012

ObjectivesPreliminary evidence suggested that doxycycline and rifampin might stop or slow the progression of Alzheimer's disease (AD). We carried out a randomized trial to confirm or refute these findings.MethodsA multicenter, blinded, randomized, 2 × 2 factorial controlled trial, set at 14 geriatric outpatient clinics in Canada. Four hundred and six patients with mild to moderate AD (standardized mini mental state examination (SMMSE) score 14–26) participated. The intervention was 12 months' treatment with doxycycline 100 mg twice daily + rifampin 300 mg daily or doxycycline 100 mg twice daily + placebo‐rifampin daily or rifampin 300 mg daily + placebo‐doxycycline twice daily or placebo‐doxycycline twice daily + placebo‐rifampin daily.Coprimary outcomes were the Standardized Alzheimer's Disease Assessment Scale‐Cognitive Subscale (SADAS‐cog) and the Clinical Dementia Rating Scale‐Sum of the Boxes (CDR‐SB). Secondary outcomes were the SMMSE, Quick mild cognitive impairment screen, Geriatric Depression Scale, Cornell Scale for Depression in Dementia, activities of daily living (Lawton Scale), and the Dysfunctional Behavior Rating Instrument frequency and reaction subscales.ResultsThere was a significant deterioration in SADAS‐cog over time with both rifampin and doxycycline in comparison with placebo. When the two were used together, there was no statistically significant decline/deterioration in comparison with placebo (n = 305).For the CDR‐SB, there were no significant effects of either rifampin or doxycycline.Secondary outcome results followed similar patterns.ConclusionTwelve months' treatment with doxycycline or rifampin, alone or in combination, has no beneficial effects on cognition or function in AD. Copyright © 2012 John Wiley & Sons, Ltd.
Blue Fluorescence and Bipolar Transport Materials Based on Anthracene and Their Application in OLEDs
Authors: Ho Meng‐Huan , Balaganesan Banumathy , Chen Chin H. (Fred) 
Published: June 2012

AbstractThe phenomenon of organic electroluminescence (EL) was first discovered from studies on anthracene crystals in the 1960s. Since then, its derivatives have been studied extensively in applications such as organic light‐emitting diodes (OLEDs) and organic thin‐film transistors because of their excellent EL, transport, and good electrochemical properties. A blue fluorescence emitter based on anthracene is also important in constructing hybrid tandem white OLEDs for lighting applications. This article provides a review about the development of blue host OLED materials based on molecules designed and derived from the core structure of anthracene and their application as bipolar charge‐carrier transport materials in OLEDs. The recent development of efficient, stable, blue‐doped p‐i‐n OLEDs with simplified device architecture based on the single common host 2‐methyl‐9,10‐di(2‐napthyl)anthracene, with its stable thin‐film morphology, large band gap energy, high fluorescence quantum yield, and ambipolar charge‐carrier transport properties, is also highlighted.
Significant others’ responses to pain in veterans with chronic pain and clinical levels of post‐traumatic stress disorder symptomatology
Authors: Alschuler K.N. , Otis J.D. 
Published: June 2012

AbstractBackgroundPain and post‐traumatic stress disorder (PTSD) are two of the most common health complaints among US veterans. Studies suggest that the co‐morbidity of these disorders exacerbates veterans’ experiences of chronic pain. Although a limited number of papers have reviewed reasons for this exacerbation, no studies have explored the potential contribution of significant others’ responses to veterans’ experience of pain in the context of PTSD symptomatology. The purpose of this study was to explore whether significant others’ responses to chronic pain differed for veterans with and without clinical levels of PTSD symptoms. It was hypothesized that veterans who presented with higher levels of PTSD symptomatology would report higher levels of ‘punishing’ responses to their pain from significant others.MethodsParticipants were 184 veterans who completed self‐report questionnaires as part of their participation in a Psychology Pain Management program at a Department of Veterans Affairs healthcare facility.ResultsSupporting our hypothesis, PTSD symptoms in veterans were associated with higher levels of punishing responses to pain from their significant others. Further, veterans who reported clinically significant levels of PTSD symptoms garnered more punishing responses to pain when compared with veterans with subclinical levels of PTSD symptomatology. Punishing responses to pain were associated with greater pain‐related disability among veterans.ConclusionsThe presence of more punishing responses may impact the cognitive‐behavioural components of the chronic pain experience. For example, it may worsen negative affect, which can thus impact the fear‐avoidance model. Further discussion focuses on the implications of these results, including guidelines for clinical applications.
Determination on the binding of chlortetracycline to bovine serum albumin using spectroscopic methods
Authors: Li Zhizhong , Jiao Genlong , Sun Guodong , Song Li , Sheng Feng 
Published: June 2012

AbstractIn this work, the interaction of chlortetracycline with bovine serum albumin (BSA) was investigated by fluorescence spectroscopy, circular dichroism (CD) spectroscopy, and molecular docking. Results indicated that chlortetracycline quenches BSA fluorescence mainly by a static quenching mechanism. The quenching constants (KSV) were obtained as 5.64 × 104, 4.49 × 104/, and 3.44 × 104/ M−1 at 283, 295, and 307 K, respectively. The thermodynamic parameters of enthalpy change Δ H°, entropy change Δ S°, and free energy change Δ G° were −5.12 × 104/ J mol−1, −97.6 J mol−1 K−1, and −2.24 × 104/ J mol−1 (295 K), respectively. The association constant (KA) and the number of binding sites (n) were 9.41 × 103/ M−1 and 0.86, respectively. The analysis results suggested that the interaction was spontaneous, and van der Waals force and hydrogen‐bonding interactions played key roles in the reaction process. In addition, CD spectra proved secondary structure alteration of BSA in the presence of chlortetracycline. © 2012 Wiley Periodicals, Inc. J Biochem Mol Toxicol 26:331–336, 2012; View this article online at wileyonlinelibrary.com. DOI 10:1002/jbt.21424
Management of Chenopodium polyspermum toxicity with plasma exchange and hemodialysis
Authors: Acık D. Yanardag , Yilmaz M. , Sahin H. Haydaroglu , Sayıner Z. , Koruk I. , Tiryaki O. , Okan V. , Pehlivan M. 
Published: June 2012

AbstractA 45‐year‐old male patient was admitted to our emergency department complaining of fatigue, headache, mild confusion, nausea, and vomiting. He had had Type 2 diabetes mellitus for 10 years that was managed with insulin injections. Two days before the onset of symptoms, he had consumed the natural herb Chenopodium polyspermum to regulate his blood glucose levels. Upon examination, he was found to be experiencing tenderness in the upper left abdominal area, icteric sclera, and pallor conjunctivas. Laboratory tests revealed that he was anemic and had increased levels of indirect bilirubin, lactic dehydrogenase, and creatinine in blood. Direct and indirect Coombs tests were negative, and fragmented erythrocytes were observed in peripheral blood smears. The best supportive care was provided, and therapeutic plasma exchange (TPE) treatments were administered. TPE was performed five times and hemolytic findings improved. The patient then developed chronic renal failure and was transferred to the dialysis program and discharged. In this article, we present a case with hemolytic and renal toxicity induced by the ingestion of Chenopodium polyspermum that was managed with TPE and hemodialysis. J. Clin. Apheresis 27:278–281, 2012. © 2012 Wiley Periodicals, Inc.