bluuebunny/crossref_metadata_2025_split huggingface dataset:
Price Transmission, International Trade, and Asymmetric Relationships in the Dutch Agri‐Food Chain
Authors: Verreth Daphne M.I. , Emvalomatis Grigorios , Bunte Frank , Kemp Ron , Oude Lansink Alfons G.J.M. 
Published: April 2015

ABSTRACTThis paper analyses the response of producer, wholesale, retail, and international trade prices to shocks in prices in upstream or downstream stages in the Dutch onion and red pepper supply chains. The analysis allows for asymmetric adjustment among food prices when the wholesale or retail stages exert oligopoly power. The study provides a theoretical underpinning of the relationship between domestic and international prices. Asymmetries in price transmission are examined using the Houck as well as the error‐correction approaches. The impulse response analyses show that red pepper prices return to their long‐term equilibria relatively quickly, whereas onion prices settle at a new equilibrium after a price shock. Market power in the wholesale sector affects the responses of onion prices but has little or no effect on the responses of red pepper prices. Market power in the retail sector does not affect the onion prices or the red pepper prices. Analysis of weekly price data over the period from 2005 to 2008 suggests asymmetric adjustment in producer‐wholesale and international‐producer prices in the Dutch onion supply chain. The results also show asymmetric transmission between producer and retail prices for red pepper.
The “physician on call patient engagement trial” (POPET): measuring the impact of a mobile patient engagement application on health outcomes and quality of life in allergic rhinitis and asthma patients
Authors: Cingi Cemal , Yorgancioglu Arzu , Cingi Can Cemal , Oguzulgen Kıvılcım , Muluk Nuray Bayar , Ulusoy Seçkin , Orhon Nezih , Yumru Cengiz , Gokdag Dursun , Karakaya Gul , Çelebi Şaban , Çobanoglu H. Bengü , Unlu Halis , Aksoy Mehmet Akif 
Published: April 2015

BackgroundIn this prospective, multicenter, randomized, controlled, double‐blind study, we investigated the impact of a mobile patient engagement application on health outcomes and quality of life in allergic rhinitis (AR) and asthma patients.MethodsIn total, 327 patients with diagnoses of persistent AR or mild‐to‐severe persistent asthma were randomized into 2 intervention groups and 2 control groups upon their admission at outpatient clinics. The intervention groups (POPET‐AR and POPET‐Asthma) received a mobile phone application (“physician on call patient engagement trial” [POPET]), enabling them to communicate with their physician, and record their health status and medication compliance. The AR groups completed the Rhinitis Quality of Life Questionnaire (RQLQ) at initiation and at the first month of the study. The asthma groups completed the Asthma Control Test (ACT) at initiation and at the third month of the study.ResultsThe POPET‐AR group showed better clinical improvement than the control group in terms of the overall RQLQ score as well in measures of general problems, activity, symptoms other than nose/eye, and emotion domains (p< 0.05). In the POPET‐Asthma group, more patients (49%) achieved a well‐controlled asthma score (ACT > 19) compared with the control group (27%); this was statistically significant (p< 0.05).ConclusionUse of a mobile engagement platform, such as POPET, can have a significant impact on health outcomes and quality of life in both AR and asthma, potentially decreasing the number of hospital admissions, repeat doctor visits, and losses in productivity. Improvements were seen in domains related to activity, productivity, perception of disease, and emotion.
Ruthenium‐Oxide‐Coated Sodium Vanadium Fluorophosphate Nanowires as High‐Power Cathode Materials for Sodium‐Ion Batteries
Authors: Peng Manhua , Li Biao , Yan Huijun , Zhang Dongtang , Wang Xiayan , Xia Dingguo , Guo Guangsheng 
Published: April 2015

AbstractSodium‐ion batteries are a very promising alternative to lithium‐ion batteries because of their reliance on an abundant supply of sodium salts, environmental benignity, and low cost. However, the low rate capability and poor long‐term stability still hinder their practical application. A cathode material, formed of RuO2‐coated Na3V2O2(PO4)2F nanowires, has a 50 nm diameter with the space group of I4/mmm. When used as a cathode material for Na‐ion batteries, a reversible capacity of 120 mAh g−1 at 1 C and 95 mAh g−1 at 20 C can be achieved after 1000 charge–discharge cycles. The ultrahigh rate capability and enhanced cycling stability are comparable with high performance lithium cathodes. Combining first principles computational investigation with experimental observations, the excellent performance can be attributed to the uniform and highly conductive RuO2 coating and the preferred growth of the (002) plane in the Na3V2O2(PO4)2F nanowires.
Triglycine sulphate and its deuterated analog in polyurethane matrix for thermal/infrared detection: A comparison
Authors: Sudhakaran Jayalakshmy Maliyekattu , Philip Jacob 
Published: April 2015

ABSTRACTComposites comprising of polycrystalline triglycine sulphate (TGS) or its deuterated analog (DTGS) in powder form dispersed in polyurethane (PU) are synthesized for pyroelectric sensor applications. TGS and DTGS have high pyroelectric coefficients, but are susceptible to humidity, and PU is inherently electroactive. So composites made of TGS or DTGS dispersed in PU can be expected to have high pyroelectric coefficient as well as immunity to humidity. Composites with inclusion volume fraction between 0 and 0.25 are prepared, and their dielectric, pyroelectric, and thermal properties measured. In general, deuteration leads to decrease in dielectric constant and specific heat, but increase in thermal conductivity. The pyroelectric coefficient and figures of merit get enhanced significantly with deuteration as well as inclusion volume fraction. Comparison with similar composites shows that these samples have the highest values for figures of merit, indicating their potential use as thermal/infrared detectors that are immune to humidity. © 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015, 132, 42250.
Descriptive study on neural tube defects in Argentina
Authors: Sargiotto Carla , Bidondo María Paz , Liascovich Rosa , Barbero Pablo , Groisman Boris 
Published: April 2015

BackgroundNeural tube defects (NTDs) are the most common congenital anomalies of the central nervous system. Prevalence of NTDs varies depending on geographic region and folic acid fortification. The main objectives of this study are to analyze the prevalences of NTDs reported to the National Registry of Congenital Anomalies of Argentina (RENAC) during the period 2009 to 2013, to compare them with data from other selected surveillance systems of the Americas, and to evaluate the impact of folic acid fortification on the prevalence of NTDs in Argentina.MethodsWe analyzed changes in prevalence between 2009 and 2013 for the RENAC, and differences in prevalence between RENAC and other surveillance systems. We evaluated changes for the pre and postfortification time periods in Argentina.ResultsIn Argentina, anencephaly and spina bifida showed no statistically significant variation between 2009 and 2013, and encephalocele showed a statistically significant decline. The RENAC showed a statistically significant higher prevalence for all three defects when compared with surveillance systems from Chile, Colombia, and Costa Rica, and a statistically significant lower birth prevalence than Cuba for anencephaly. No differences were observed when comparing it to the Atlanta‐USA and Mexico systems. A significant decrease in prevalence was observed for all three anomalies for the postfortification period in Argentina.ConclusionThe characteristics of cases reported to the RENAC are similar to those already reported in the literature. The differences in prevalence between the RENAC and other surveillance systems could be artifactual or real. We confirmed the decrease of prevalence of NTDs after folic acid fortification. Birth Defects Research (Part A) 103:509–516, 2015. © 2015 Wiley Periodicals, Inc.
The evaluation and steering of English academy schools through inspection and examinations: national visions and local practices
Authors: Kauko Jaakko , Salokangas Maija 
Published: April 2015

The article analyses the redefinition and distribution of powers between central governance and local actors in English independent state‐funded schooling. Earlier research on governance confirms the importance of the local and the school level in reshaping national‐level reforms and steering policies. The research draws on data from interviews with national‐level policymakers and an ethnographic school case study, thereby yielding contrasting views and perceptions of governance at the national level, and the day‐to‐day reality at the local level. The empirical analysis gives mixed results in that the national visions of innovative local practices seem not to be manifest at the local level. Despite the legal and financial freedoms granted to academy schools, the case academy is constrained by the national policy of steering by evaluation, namely inspection and testing, and the managerial practices of the sponsor. The article concludes that the real effect of academies is still under construction and meanwhile their space for action is strongly restricted by the tools of evaluation. As a more theoretical conclusion the analysis suggests that future analysis should concentrate more on action rather than structures and on evaluation as an embedded practice.
Punica granatum and its therapeutic implications on breast carcinogenesis: A review
Authors: Vini Ravindran , Sreeja Sreeharshan 
Published: April 2015

AbstractPunica granatum has a recorded history of pharmacological properties which can be attributed to its rich reservoir of phytochemicals. Investigations in recent years have established its tremendous potential as an antitumorogenic agent against various cancers including breast cancer, which is the second leading cause of cancer‐related deaths in women. The plausible role of Punica as a therapeutic agent, as an adjuvant in chemotherapy, and its dietary implications as chemopreventive agent in breast cancer have been explored. Mechanistic studies have revealed that Punica extracts and its components, individually or in combination, can modulate and target key proteins and genes involved in breast cancer. Our earlier finding also demonstrated the role of methanolic extract of pomegranate pericarp in reducing proliferation in breast cancer by binding to estrogen receptor at the same time not affecting uterine weight unlike estradiol or tamoxifen. This review analyses other plausible mechanisms of Punica in preventing the progression of breast cancer and how it can possibly be a therapeutic agent by acting at various steps of carcinogenesis including proliferation, invasion, migration, metastasis, angiogenesis, and inflammation via various molecular mechanisms. © 2015 BioFactors, 41(2):78–89, 2015
Perceptual validity in animation of human motion
Authors: Etemad S. Ali , Arya Ali , Parush Avi , DiPaola Steve 
Published: April 2015

AbstractThe crucial concept of modeling and synthesis/control of human motion (including face and body) for animation has been widely studied and explored in the literature. In this regard, the audience's perception of generated or recorded animation scenes is of critical importance. In this paper, we explore and conceptualize the general notions that need to be taken into account for human motion to maintain perceptual accuracy. We propose a paradigm called Perceptual Validity composed of four major components, which are discussed in detail. The model is concerned with different aspects of the scene such as correct illustration of the stimuli, context, and local/global relations of various visual cues present in human motion. Satisfying all the proposed principles, based on the literature, seems compulsory and vital for synthesis of perceptually valid animation scenes of human motion. We investigate the relative significance of the different components of the paradigm using feedback from expert animators and conduct a case study on one of the components of the paradigm. For further evaluation and exploration, Disney's principles of animation are discussed and compared against our proposed paradigm. We argue that while there are significant parallels and overlaps, our model is only focused on and more inclusive towards human motion and can therefore provide a valuable set of guidelines for animators in the field of character animation. Copyright © 2015 John Wiley & Sons, Ltd.
Familial hypercholesterolemia presenting with multiple nodules of the hands and elbow
Authors: Maharaj Satish , Chang Simone , Nayak Shivananda B. 
Published: April 2015

Key Clinical MessageFamilial hypercholesterolemia (FH) is a common but commonly missed diagnosis. Tendon xanthomas are a physical sign strongly suggestive of FH. Physicians must identify tendon xanthomas, apply validated clinical scoring such as the Dutch Lipid Clinic Network criteria and offer cascade screening. This approach will increase recognition of FH.
Ankle clonus
Authors: Fareedy Shoaib Bilal , Pathak Ranjan 
Published: April 2015

Key Clinical MessageClonus is a series of involuntary, rhythmic, muscular contractions, and relaxations. It may be caused by interruption of the upper motor neuron fibers such as stroke, multiple sclerosis, or by metabolic alterations such as severe hepatic failure or serotonin syndrome. We present a video case of impressive left ankle clonus in a patient with old right middle cerebral artery stroke.
A 6q14.1‐q15 microdeletion in a male patient with severe autistic disorder, lack of oral language, and dysmorphic features with concomitant presence of a maternally inherited Xp22.31 copy number gain
Authors: Quintela Ines , Fernandez‐Prieto Montse , Gomez‐Guerrero Lorena , Resches Mariela , Eiris Jesus , Barros Francisco , Carracedo Angel 
Published: April 2015

Key Clinical MessageWe report on a male patient with severe autistic disorder, lack of oral language, and dysmorphic features who carries a rare interstitial microdeletion of 4.96 Mb at chromosome 6q14.1‐q15. The patient also harbors a maternally inherited copy number gain of 1.69 Mb at chromosome Xp22.31, whose pathogenicity is under debate.
Snapshot in surgery: brain abscess as a complication of a recurrent sigmoid diverticular abscess
Authors: Zhou Zhaowei , Wuppalapati Siddhartha , Scott Nigel 
Published: April 2015

Key Clinical MessageA 35‐year‐old man was found to have a cerebral abscess secondary to a recurrent sigmoid diverticular abscess. Both cultures grew Streptococcus anginosus. Brain abscess is a rare but potential complication of sigmoid diverticulitis. Streptococcus anginosus, which is found in human gut flora, is a common cause of brain abscess.
Temperature‐Induced Modulation of the Sample Position in Scanning Electrochemical Microscopy
Authors: Clausmeyer Jan , Schäfer Dominik , Nebel Michaela , Schuhmann Wolfgang 
Published: April 2015

AbstractFeedback‐mode scanning electrochemical microscopy (SECM) was conducted with in situ control of the sample temperature using a Peltier element. The intrinsic heat pulsing of the temperature control feedback loop causes the sample position to oscillate periodically. By synchronizing tip current acquisition with the oscillatory temperature modulation of the sample, tip current values at different tip‐to‐sample separations are recorded and used to estimate the slope of the distance–current relationship (z‐approach curve). In‐phase amplification of only the distance‐dependent current signal is achieved using the approximated slope and hence the relative imaging contrast is enhanced. Moreover, sample‐position modulated SECM allows distinguishing between electrochemically active and inactive domains on the sample in a single area scan without an a priori knowledge of the sample topography.
Recent Progress towards Transition‐Metal‐Catalyzed Synthesis of Fluorenes
Authors: Zhou Ai‐Hua , Pan Fei , Zhu Chunyin , Ye Long‐Wu 
Published: April 2015

AbstractFluorenes are a commonly encountered structural motif in materials science, pharmaceutical chemistry, and organic synthesis. Among various strategies towards the synthesis of this unique structure, transition metal‐catalyzed functionalization has emerged as one of the most efficient methods. This Minireview presents an overview of the recent advances in this emerging area by highlighting the reactions’ specificity and applicability and, where possible, provides a mechanistic rationale.
ChemInform Abstract: Structure, Properties and Luminescence Mechanism of Sr1.93B2O5:0.07Eu3+ Red Phosphors.
Authors: Liu Quansheng , Zheng Zhaoyang , Zhang Xiyan , Bai Zhaohui 
Published: April 2015

AbstractSr1.93B2O5:0.07Eu3+ is prepared by firing stoichiometric amounts of SrCO3, H3BO3, and Eu2O3 (Al2O3 crucible, 1050 °C, 2 h).
ChemInform Abstract: Synthesis, Structure, and Na‐Ion Migration in Na4NiP2O7F2: A Prospective High Voltage Positive Electrode Material for the Na‐Ion Battery.
Authors: Kundu Dipan , Tripathi Rajesh , Popov Guerman , Makahnouk W. R. M. , Nazar Linda F. 
Published: April 2015

AbstractSingle crystals of Na4NiP2O7F2 are prepared by a flux reaction of NiO with excess Na2PO3F (Au crucible in silica tube, 675 °C, 8 h; cooling to 400 °C within 10 h).
ChemInform Abstract: All First Row Transition Metal Oxide Photoanode for Water Splitting Based on Cu3V2O8.
Authors: Seabold Jason A. , Neale Nathan R. 
Published: April 2015

AbstractF‐doped tin‐oxide‐coated glass electrodes are dip‐coated with Cu3V2O8 (or Mo‐doped Cu3V2O8) nanoparticles followed by drying and annealing in air (425 °C, 1 h).
ChemInform Abstract: Copper‐Catalyzed Enantioselective 1,4‐Addition of Alkyl Groups to N‐Sulfonyl Imines.
Authors: Westmeier Johannes , von Zezschwitz Paultheo 
Published: April 2015

AbstractThe enantioselective 1,4‐addition of dialkylzinc to cyclic N‐sulfonyl imines in the presence of Ferringa′s phosphoramidite catalyst is presented.
ChemInform Abstract: Direct Asymmetric Hydrogenation of α‐Keto Acids by Using the Highly Efficient Chiral Spiro Iridium Catalysts.
Authors: Yan Pu‐Cha , Xie Jian‐Hua , Zhang Xiang‐Dong , Chen Kang , Li Yuan‐Qiang , Zhou Qi‐Lin , Che Da‐Qing 
Published: April 2015

AbstractThe catalytic hydrogenation of α‐keto acids employing an Ir/SpiroPAP (IRC) catalyst proceeds under mild conditions with potential application on large scale synthesis.
ChemInform Abstract: Nickel‐Catalyzed Reductive Methylation of Alkyl Halides and Acid Chlorides with Methyl p‐Tosylate.
Authors: Liang Zhuye , Xue Weichao , Lin Kunhua , Gong Hegui 
Published: April 2015

AbstractIn contrast to other sulfonates, methyl tosylate serves as an effective agent for the methylation of unactivated primary and secondary alkyl halides as well as aryl and alkyl carboxylic acid chlorides.
ChemInform Abstract: Oxalyl Amide Assisted Palladium‐Catalyzed Arylation of C(sp2)—H Bond at the δ Position.
Authors: Han Jian , Liu Pei , Wang Chao , Wang Qian , Zhang Jingyu , Zhao Yanwei , Shi Daqing , Huang Zhibin , Zhao Yingsheng 
Published: April 2015

AbstractVarious functionalized β‐arylethylamines are efficiently arylated at the ortho‐aryl position under mild conditions.
ChemInform Abstract: Iron(III)‐Catalyzed C—H Functionalization: ortho‐Benzoyloxylation of N,N‐Dialkylanilines and Its Application to 1,4‐Benzoxazepines.
Authors: Chiranjeevi Barreddi , Vinayak Botla , Parsharamulu Thupakula , PhaniBabu Vemulapalli S. , Jagadeesh Bharatam , Sridhar Balasubramanian , Chandrasekharam Malapaka 
Published: April 2015

AbstractThis selective ortho‐benzoyloxylation follows a polar Friedel‐Crafts‐like mechanism and is sensitive to the nucleophilicity of the anilines.
ChemInform Abstract: Nickel‐Catalyzed Cross‐Coupling of Carboxylic Anhydrides with Arylboronic Acids.
Authors: Chen Qiang , Fan Xin‐Heng , Zhang Li‐Peng , Yang Lian‐Ming 
Published: April 2015

AbstractAromatic ketones (III) (27 examples) are efficiently and conveniently synthesized by the title reaction.
ChemInform Abstract: Iron Pentacarbonyl in Alkoxy‐ and Aminocarbonylation of Aromatic Halides.
Authors: Babjak Matej , Caletkova Olga , Durisova Diana , Gracza Tibor 
Published: April 2015

AbstractOnly in the case of the methoxycarbonylation the yields of (XI) can be improved by using dppf instead of PPh3 as a ligand.
ChemInform Abstract: Enantioselective Lewis‐Base‐Catalyzed Asymmetric Hydrosilylation of Substituted Benzophenone N‐Aryl Imines: Efficient Synthesis of Chiral (Diarylmethyl)amines.
Authors: Hu Xiao‐Yan , Zhang Min‐Min , Shu Chang , Zhang Yong‐Hong , Liao Li‐Hua , Yuan Wei‐Cheng , Zhang Xiao‐Mei 
Published: April 2015

AbstractCrucial for the enantiomeric excess is the presence of an ortho‐substituent on one of the two aromatic rings.
ChemInform Abstract: Expedient Synthesis of Complex γ‐Butyrolactones from 5‐(1‐Arylalkylidene) Meldrum′s Acids via Sequential Conjugate Alkynylation/Ag(I)‐Catalyzed Lactonization.
Authors: Ahmar Siawash , Fillion Eric 
Published: April 2015

AbstractThe conjugate addition reaction of metal alkynylides to Meldrum′s acids gives access to derivatives (III) and (VI) having a propargylic all‐carbon quaternary center.
ChemInform Abstract: Iron‐Catalyzed [4C + 1N] Cyclization of 4‐Acetylenic Ketones with Primary Amines: Synthesis of 5‐(Aryl)alkylidene‐4,5‐dihydropyrroles.
Authors: Sun Bo , Ma Quan , Wang Yeming , Zhao Yuegang , Liao Peiqiu , Bi Xihe 
Published: April 2015

AbstractAn environmentally friendly route towards fully substituted 4,5‐dihydropyrroles is provided.
ChemInform Abstract: A Free‐Radical Cascade Methylation/Cyclization of N‐Arylacrylamides and Isocyanides with Dicumyl Peroxide.
Authors: Xu Zhengbao , Yan Chaoxian , Liu Zhong‐Quan 
Published: April 2015

AbstractDicumyl peroxide is an efficient methyl radical donor for the methylation/cyclization reaction of N‐arylacrylamides and isocyanides providing oxindoles and phenanthridines in reasonable yields.
ChemInform Abstract: The Novel Approach to Indole Alkaloids by Using Pd(II)‐Catalyzed Cyclization.
Authors: Yokoyama Hajime , Kubo Takayoshi , Matsumura Yosuke , Hosokawa Junichi , Miyazawa Masahiro , Hirai Yoshiro 
Published: April 2015

AbstractPd‐catalyzed cyclization of substrates (I) provides vinyl indolines, which are further transformed into intermediates of indole alkaloids such as (III) or (IV).
ChemInform Abstract: Copper‐Catalyzed Arylation of Nitrogen Heterocycles from Anilines under Ligand‐Free Conditions.
Authors: Toummini Dounia , Tlili Anis , Berges Julien , Ouazzani Fouad , Taillefer Marc 
Published: April 2015

AbstractPyrazoles are arylated by anilines via diazotation, in the presence of catalytic amounts of copper(II) acetate.
ChemInform Abstract: Microwave‐Assisted Cycloaddition of Diisopropyl Diazomethylphosphonate to Electron‐Deficient Alkenes: Synthesis of Multifunctionalized Phosphonopyrazolines and Phosphonopyrazoles.
Authors: Marinozzi Maura , Tondi Silvia , Marcelli Gloria , Giorgi Gianluca 
Published: April 2015

AbstractIn general, the title cycloaddition produces pyrazolines with excellent regioselectivity.
ChemInform Abstract: Microwave‐Promoted, Metal‐ and Catalyst‐Free Decarboxylative α,β‐Difunctionlization of Secondary α‐Amino Acids via Pseudo‐Four‐Component Reactions.
Authors: Manjappa Kiran B. , Jhang Wei‐Fang , Huang Shin‐Yi , Yang Ding‐Yah 
Published: April 2015

AbstractAmino acids (III) and (VIII) react with 1,3‐diketones and two equivalents of aromatic aldehydes to give pyranopyrrole and pyranopyridine derivatives, respectively.
ChemInform Abstract: Transition‐Metal‐Free Syntheses of Pyridine‐Containing Thioethers Through Two‐Fold C—S Bond Formation.
Authors: Badsara Satpal Singh , Chan Chien‐Ching , Lee Chin‐Fa 
Published: April 2015

AbstractA catalyst‐free Cs2CO3‐promoted reaction of halogenated N‐heterocycles with thiols is developed to give the corresponding thioether derivatives.