bluuebunny/crossref_metadata_2025_split huggingface dataset:
ChemInform Abstract: Enantioselective Synthesis of Chiral Piperidines via the Stepwise Dearomatization/Borylation of Pyridines.
Authors: Kubota Koji , Watanabe Yuta , Hayama Keiichi , Ito Hajime 
Published: August 2016

AbstractA novel stepwise dearomatization/enantioselective borylation sequence for the synthesis of chiral boryl‐tetrahydropyridines from pyridines with excellent enantiomeric purity is developed.
ChemInform Abstract: New Isolinariins C, D and E, Flavonoid Glycosides from Linaria japonica.
Authors: Widyowati Retno , Sugimoto Sachiko , Yamano Yoshi , Sukardiman Yoshi , Otsuka Hideaki , Matsunami Katsuyoshi 
Published: August 2016

AbstractThree new flavonoid glycosides, isolinariins C (Ia), D (Ib), and E (Ic) are isolated from the whole plant of Linaria japonica together with two known flavonoid glycosides and three known flavonoids.
ChemInform Abstract: New Alkaloids and α‐Glucosidase Inhibitory Flavonoids from Ficus hispida
Authors: Shi Zheng‐Feng , Lei Chun , Yu Bang‐Wei , Wang He‐Yao , Hou Ai‐Jun 
Published: August 2016

Abstractisolation and structure elucidation of four new alkaloids, ficushispimine A (I), ficushispimine B (II), ficushispimine C (III), and ficushispidine (IV)
ChemInform Abstract: Crystal Structure of High‐Temperature Phase β‐NaSrBO3 and Photoluminescence of β‐NaSrBO3:Ce3+.
Authors: Yi Huan , Wu Li , Wu Liwei , Zhao Lixia , Xia Zhiguo , Zhang Yi , Kong Yongfa , Xu Jingjun 
Published: August 2016

AbstractIn view of α‐NaSrBO3 undergoing a phase transition to β‐NaSrBO3 at LED working temperatures when used as host for phosphor‐converted w‐LEDs, the high‐temperature phase β‐NaSrBO3 is stabilized at 25 °C by introducing Na+ and Ce3+.
ChemInform Abstract: Fmoc‐Modified Amino Acids and Short Peptides: Simple Bio‐Inspired Building Blocks for the Fabrication of Functional Materials
Authors: Tao Kai , Levin Aviad , Adler‐Abramovich Lihi , Gazit Ehud 
Published: August 2016

AbstractReview: studies on the self‐assembly of Fmoc‐modified biomolecules and their relevant applications in diverse advanced fields; 167 refs.
Adiabatic Mixed‐Field Orientation of Ground‐State‐Selected Carbonyl Sulfide Molecules
Authors: Kienitz Jens S. , Trippel Sebastian , Mullins Terry , Długołęcki Karol , González‐Férez Rosario , Küpper Jochen 
Published: August 2016

AbstractA strong adiabatic mixed‐field orientation (Nup/Ntot=0.882) of carbonyl sulfide (OCS) molecules in their absolute ground state is experimentally demonstrated. OCS is oriented in a combination of nonresonant laser and static electric fields inside a two‐plate velocity map imaging spectrometer. The transition from nonadiabatic to adiabatic orientation for the rotational ground state is studied by varying the applied laser intensity and static electric field. Above static electric field strengths of 10 kV cm−1 and laser intensities of 1011 W cm−2 the observed degree of orientation reaches a plateau. These results are in good agreement with computational solutions of the time‐dependent Schrödinger equation.
Reaction between Lithium Anode and Polysulfide Ions in a Lithium–Sulfur Battery
Authors: Zheng Dong , Yang Xiao‐Qing , Qu Deyang 
Published: August 2016

AbstractThe reaction between polysulfides and a lithium anode in a Li–S battery was examined using HPLC. The results demonstrated that the polysulfide species with six sulfur atoms or more were reactive with regard to lithium metal. Although the reaction can be greatly inhibited by the addition of LiNO3 in the electrolyte, LiNO3 cannot form a stable protection layer on the Li anode to prevent the reaction during storage.
Matching capacitance and transfer efficiency of four wireless power transfer systems via magnetic coupling resonance
Authors: Xiao Chunyan , Wei Kangzheng , Liu Fang , Ma Yangxiao 
Published: August 2016

SummaryMatching capacitance determines the resonance and resonant frequency for a given wireless power transfer (WPT) system. Theoretical solutions for matching capacitance are essential to designing and controlling a coupling system in resonant status and to ensuring that the system operates under high power transfer efficiency. This paper deduced all the analytical expressions of matching capacitance to achieve magnetic resonance for four classical circuitries when considering the coils' resistances. Our results showed that there are several kinds of capacitance matching methods for each circuitry to achieve resonance. Matching capacitances, different from those in the existing literatures, make the system really operate under the magnetic coupling resonance. In literatures, the capacitance at the receiver side compensated only the self‐inductance of the receiver coil and the system except series to series did not operate in the resonance state. Furthermore, the resonance conditions in applications were then given. Accordingly, the expressions of resonant WPT efficiency were presented. These expressions revealed how the underlying factors besides matching capacitance affect the power transfer efficiency, and provided easy access optimizing circuit parameters for high transfer efficiency. Four kinds of circuits were compared through theoretical analysis, calculations and experiments. Experimental results verified the theoretical solutions. Copyright © 2016 John Wiley & Sons, Ltd.
Interference analysis of cognitive radio networks
Authors: Foo Yee‐Loo 
Published: August 2016

SummaryIn spite of spectrum sensing, aggregate interference from cognitive radios (CRs) remains as a deterring factor to the realization of spectrum sharing. We provide a systematic approach of evaluating the aggregate interference (Iaggr) experienced at a victim primary receiver. In our approach, we model the received power versus propagation distance relations between a primary transmitter, primary receiver, and CRs. Our analytical framework differs from the previous works in that we have formulated the relationship between Iaggr and the sensing inaccuracy of CRs. Energy detector is assumed for the purpose of spectrum sensing. Iaggr is expressed explicitly as a function of the number of energy samples collected (N) and the threshold signal‐to‐noise ratio level used for comparison (SNRε). The theoretical analysis is then applied to a practical scenario of spectrum sharing between digital TV broadcast and the IEEE 802.22 wireless regional area network systems. The impact on digital TV reception is evaluated in terms of signal‐to‐interference ratio. The proposed method allows us to determine the appropriate wireless regional area network operating conditions that fulfill the signal‐to‐interference ratio requirement imposed by regulator. Copyright © 2016 John Wiley & Sons, Ltd.
Resilience of a tropical sport fish population to a severe cold event varies across five estuaries in southern Florida
Authors: Stevens P. W. , Blewett D. A. , Boucek R. E. , Rehage J. S. , Winner B. L. , Young J. M. , Whittington J. A. , Paperno R. 
Published: August 2016

AbstractFor species that are closely managed, understanding population resilience to environmental and anthropogenic disturbances (i.e., recovery trajectories across broad spatial areas) can guide which suite of management actions are available to mitigate any impacts. During January 2010, an extreme cold event in south Florida caused widespread mortality of common snook, Centropomus undecimalis, a popular sport fish. Interpretation of trends using fishery‐independent monitoring data in five south Florida estuaries showed that changes in catch rates of adult snook (>500 mm standard length) varied between no effects postevent to large effects and 4‐yr recoveries. The reasons for the variation across estuaries are unknown, but are likely related to differences in estuary geomorphology and habitat availability (e.g., extent of deep rivers and canals) and differences in the proportions of behavior contingents (i.e., segments of the population that use divergent movement tactics) that place snook in different areas of the estuary during winter. Emerging awareness of the presence of behavior contingents, identification of overwintering sites, and improvements of abundance indices in remote nursery habitats should provide a better understanding of population resilience to disturbance events for snook. Given that changes in the frequency of short‐lived, severe cold events are currently unknown, the findings and management actions described here for a tropical species living at the edge of its distribution should be useful to scientists forecasting the effects of climate change.
Regeneration of montane forests 24 years after the 1988 Yellowstone fires: A fire‐catalyzed shift in lower treelines?
Authors: Donato Daniel C. , Harvey Brian J. , Turner Monica G. 
Published: August 2016

AbstractForests near the lower limit of montane tree cover are expected to be particularly vulnerable to warming climate, potentially converting to non‐forest for prolonged periods if affected by canopy‐removing disturbances. Such disturbance‐catalyzed shifts are by nature stochastic, offering few opportunities to test these predictions. We capitalized on a landmark event exemplary of recent large disturbances—the 1988 wildfires in Yellowstone National Park (USA)—to investigate long‐term (24‐yr) regeneration dynamics in Douglas‐fir (Pseudotsuga menziesiivar.glauca) forests, which compose the lower treeline yet have received little study. We tested the hypothesis that, under current conditions (warmest decades in last 6000 yr), dry lower‐margin stands are less apt to attain self‐replacement than adjacent, but more mesic, stands farther from the ecotone. Mesic sites characterized by dense forests prefire regenerated robustly regardless of burn severity, even in large high‐severity patches, whereas dry sites did so only if nearby seed sources survived (i.e., small patch size or moderate burn severity). Regeneration continued over two decades, peaking between ~5 and 15 yr, with mesic stands continuing regenerating beyond 15 yr to a greater degree than dry stands. Self‐replacement of stands by 24 yr postfire was nearly universal in mesic stands, variable but common in dry stands not adjacent to the lower ecotone, and uncommon in dry stands near the ecotone—particularly if burned at high severity. Whether the lack of regeneration in ecotonal stands is categorically directional with warming climate or part of a long‐term cycle is unresolved, but we estimate that the 1988 fires converted > 4000 ha of lower‐montane forest to grass/sage steppe for at least several decades, possibly indefinitely given current trends in climate. These data support the notion that climate‐driven shifts in vegetation cover are likely to occur in punctuated fashion with disturbances, with relatively abrupt implications for montane forest cover, biogeography, and ecosystem function.
Fractionation of stable carbon isotopes of tissue fatty acids in Atlantic pollock (Pollachius virens)
Authors: Budge Suzanne M. , AuCoin Lacey R. , Ziegler Susan E. , Lall Santosh P. 
Published: August 2016

AbstractReliable estimates of diet to tissue fractionation of fatty acid (FA) stable carbon isotopes are essential for the development of techniques employing these biomarkers. In this work, Atlantic pollock (Pollachius virens) was used as a model species to investigate fractionation arising from metabolic processes during assimilation of dietary FA into serum and liver; we also examined fractionation occurring from mobilization of FA from liver during fasting. Pollock were fed diets containing FA of known isotopic composition, and serum and liver were collected postprandially and after fasting. Lipids were isolated from these tissues, and four polyunsaturated FA (PUFA), 18:2n‐6, 18:3n‐3, 20:5n‐3, and 22:6n‐3, within triacylglycerols (TAG), a specific lipid class associated with fat storage, were analyzed for their stable carbon isotope ratios. For 18:2n‐6, 20:5n‐3, and 22:6n‐3, there was no discrimination between diet and serum in postprandially sampled fish, suggesting that fractionation did not occur during hydrolysis and esterification for most PUFA examined here during digestion and transfer into serum. There was a similar lack of fractionation for all four FA between fasted liver and serum, indicating that the assembly of these FA into TAG and their release into serum were not associated with fractionation. However, apparent fractionation was variable and inconsistent for all FA between diet and postprandial liver, indicating a failure of liver TAG to fully reflect the new diet. These data will allow δ13C values of three PUFA in postprandial serum to be incorporated into mixing models to estimate recent diet in gadoids. Further controlled feeding studies, under conditions that elicit physiological responses that are similar to those of fish in their natural environment, will be necessary before reliable estimates of longer‐term diet, derived from δ13C in liver FA, will be possible.
Analysis of Lithium‐Ion Battery Models Based on Electrochemical Impedance Spectroscopy
Authors: Westerhoff Uwe , Kurbach Kerstin , Lienesch Frank , Kurrat Michael 
Published: August 2016

AbstractThis work is an overview of various equivalent circuits (ECs) containing various degrees of detail. The ECs are evaluated in terms of model accuracy and parameterization time for the systematic assignment of an equivalent circuit to application fields. For this purpose, impedance spectra were measured using electrochemical impedance spectroscopy at different states of charge, health and temperatures. Then the parameters of the EC were extracted using the least‐squares method and the Levenberg–Marquardt algorithm. After comparing the simulated to the measured impedance spectrum, a review and assignment of equivalent circuits for potential applications is given. Simple equivalent circuits with a series resistor and a maximum of two resistance–capacitance (RC) elements are ideal for simulations with lower dynamics. Equivalent circuits with up to five RC elements or even a constant‐phase element (CPE) are promising for simulating highly dynamic processes. By using RCPE elements the impedance spectrum can be modeled with the highest accuracy, which is why this type of model should be used for diagnostic purposes.
Influence of Ionic Liquid Electrolytes on the Photovoltaic Performance of Dye‐Sensitized Solar Cells
Authors: Decoppet Jean‐David , Khan Sher B. , Al‐Ghamdi Mohammed S. A , Alhogbi Basma G. , Asiri Abdullah M. , Zakeeruddin Shaik M. , Grätzel Michael 
Published: August 2016

AbstractNew binary ionic liquid electrolytes based on 1‐methyl‐1‐butylpyrrolidinium bis(trifluromethylsulfonyl)imide, 1‐butylpyridinium bis(trifluromethylsulfonyl)imide, 1‐methyl‐3‐ethylimidazolium bis(trifluromethylsulfonyl)imide, 1‐methyl‐3‐ethylimidazolium tetracyanoborate, or 1‐methyl‐3‐ethylimidazolium tricyanomethanide coupled with 1‐methyl‐3‐propyl‐imidazolium iodide were developed for dye‐sensitized solar cells (DSCs). We examined these ionic liquid compositions in conjunction in conjunction with a diketopyrrolopyrrole‐based donor‐π bridge acceptor dye (DPP‐13) in dye‐sensitized solar cells and also investigated the influence of adding lithium ions to the electrolyte to enhance the device performance. The best device exhibited a short‐circuit current density of 15.2 mA cm−2, an open‐circuit voltage of 678 mV, and a fill factor of 71 %, corresponding to an overall power conversion efficiency (PCE) of 7.1 % under standard AM 1.5G illumination at 100 mW cm−2.
Development and Initial Evaluation of the ClearSpeak Style for Automated Speaking of Algebra
Authors: Frankel Lois , Brownstein Beth , Soiffer Neil , Hansen Eric 
Published: August 2016

AbstractThe work described in this report is the first phase of a project to provide easy‐to‐use tools for authoring and rendering secondary‐school algebra‐level math expressions in synthesized speech that is useful for students with blindness or low vision. This report describes the initial development, software implementation, and evaluation of the ClearSpeak speech style—implemented for initial testing purposes using prerecorded synthetic speech, and implemented later in the project as a collection of predefined rules and in some cases variations (called preferences in ClearSpeak)—for automatically generated synthetic speech. In addition to wording, speech styles can specify pausing (or other prosodic cues) within the speech. The ClearSpeak style focuses on speech for secondary school algebra. The evaluation compares a prototype of the ClearSpeak style to two pre‐existing speech styles: MathSpeak and SimpleSpeak. The primary parameters evaluated are students' success in drawing conclusions about the content and structure of math expressions and their perceptions regarding the familiarity, helpfulness, and understandability of the expressions as spoken. Please see Appendix E for information on obtaining a version of this report that is fully accessible using the tools described.
Mismatch negativity (MMN) stands at the crossroads between explicit and implicit emotional processing
Authors: Chen Chenyi , Hu Chia‐Hsuan , Cheng Yawei 
Published: August 2016

AbstractThe amygdala is known as a key brain region involved in the explicit and implicit processing of emotional faces, and plays a crucial role in salience detection. Not until recently was the mismatch negativity (MMN), a component of the event‐related potentials to an odd stimulus in a sequence of stimuli, utilized as an index of preattentive salience detection of emotional voice processing. However, their relationship remains to be delineated. This study combined the fMRI scanning and event‐related potential recording by examining amygdala reactivity in response to explicit and implicit (backward masked) perception of fearful and angry faces, along with recording MMN in response to the fearfully and angrily spoken syllables dada in healthy subjects who varied in trait anxiety (STAI‐T). Results indicated that the amplitudes of fearful MMN were positively correlated with left amygdala reactivity to explicit perception of fear, but negatively correlated with right amygdala reactivity to implicit perception of fear. The fearful MMN predicted STAI‐T along with left amygdala reactivity to explicit fear, whereas the association between fearful MMN and STAI‐T was mediated by right amygdala reactivity to implicit fear. These findings suggest that amygdala reactivity in response to explicit and implicit threatening faces exhibits opposite associations with emotional MMN. In terms of emotional processing, MMN not only reflects preattentive saliency detection but also stands at the crossroads of explicit and implicit perception. Hum Brain Mapp 38:140–150, 2017. © 2016 Wiley Periodicals, Inc.
Role of surgery in the management of anaplastic thyroid carcinoma: Korean nationwide multicenter study of 329 patients with anaplastic thyroid carcinoma, 2000 to 2012
Authors: Baek Seung‐Kuk , Lee Myung‐Chul , Hah J. Hun , Ahn Soon‐Hyun , Son Young‐Ik , Rho Young‐Soo , Chung Phil‐Sang , Lee Yoon‐Se , Koo Bon Seok , Jung Kwang‐Yoon , Lee Byung‐Joo 
Published: August 2016

ABSTRACTBackgroundThe Korean Society of Thyroid Head and Neck Surgery established a nationwide multicenter registry of anaplastic thyroid carcinoma (ATC) and evaluated the prognostic factors and treatment outcomes of ATC.MethodsThe present study enrolled 329 patients who were diagnosed with ATC between January 2000 and December 2012 at 19 medical centers in Korea. Survival outcomes were evaluated according to various clinical factors and treatments.ResultsMultivariate analysis identified age ≥70 years old, the presence of initial clinical symptoms, distant metastasis, and treatment modality as significant risk factors (p <.05). The patients who underwent curative resection and adjuvant radiotherapy (RT) or concurrent chemoradiotherapy (CRT) showed the best survival on multivariate analysis (p < 0.05).ConclusionAlthough ATC is a lethal neoplasm, long‐term survival may be acquired in cases in which the aggressive management, including curative resection or RT/concurrent CRT, is possible for therapeutic intent. © 2016 Wiley Periodicals, Inc. Head Neck 39: 133–139, 2017
An overview of the potential strategies for NK cell‐based immunotherapy for acute myeloid leukemia
Authors: Sinha Chandrima , Cunningham Lea C. 
Published: August 2016

AbstractPatients with acute myeloid leukemia (AML) have relatively low survival rates compared to patients with other pediatric cancers. Relapse is frequent with conventional treatment and is a major cause of morbidity and mortality. Natural killer (NK) cells offer an alternative approach to chemotherapy that combats relapse by substantially eradicating AML blasts. New methods for enhancing NK cell activation and expression of the activating ligand on target malignant cells will increase the likelihood of success with this approach. We review these latest discoveries in NK cell‐based therapy for AML and delineate recent advances in sensitizing AML cells to NK cell‐mediated immunosurveillance.
Benefits and limitations of prenatal screening for Prader–Willi syndrome
Authors: Butler Merlin G. 
Published: August 2016

AbstractThis review summarizes the status of genetic laboratory testing in Prader–Willi syndrome (PWS) with different genetic subtypes, most often a paternally derived 15q11–q13 deletion and discusses benefits and limitations related to prenatal screening. Medical literature was searched for prenatal screening and genetic laboratory testing methods in use or under development and discussed in relationship to PWS. Genetic testing includes six established laboratory diagnostic approaches for PWS with direct application to prenatal screening. Ultrasonographic, obstetric and cytogenetic reports were summarized in relationship to the cause of PWS and identification of specific genetic subtypes including maternal disomy 15. Advances in genetic technology were described for diagnosing PWS specifically DNA methylation and high‐resolution chromosomal SNP microarrays as current tools for genetic screening and incorporating next generation DNA sequencing for noninvasive prenatal testing (NIPT) using cell‐free fetal DNA. Positive experiences are reported with NIPT for detection of numerical chromosomal problems (aneuploidies) but not for structural problems (microdeletions). These reports will be discussed along with future directions for genetic screening of PWS. In summary, this review describes and discusses the status of established and ongoing genetic testing options for PWS applicable in prenatal screening including NIPT and future directions for early diagnosis in PWS. © 2016 John Wiley & Sons, Ltd.
Thorium (IV) phosphate‐polyaniline composite‐based hydrophilic membranes for bending actuator application
Authors: Khan Ajahar , Inamuddin  , Jain Ravi Kant , Asiri Abdullah M. 
Published: August 2016

In the present study, ionic polymer metal composite (IPMC) membrane actuator based on triple‐layered thorium(IV) phosphate/polyaniline/Pt (ThP‐PANI‐Pt) was prepared via consecutive solution recasting and electroless plating methods. The triple‐layered membrane is composed of thorium(IV) phosphate (ThP) inorganic cation exchanger layer in the middle section, two layers of polyaniline deposited through in situ polymerization and finally Pt electrode layers on both the surfaces on the outer section. The water uptake capacity of the ThP‐PANI composite polymer membrane was found to be 95.40% at 45ºC for 10 h of immersion time. The ion exchange capacity and proton conductivity was found to be 1.6 meq g−1of dry membrane and 1.12 × 10−3 S cm−1, respectively. Maximum water loss from IPMC was 38% at 4 V for a time period of 12 min. Scanning electron micrographs shows the smooth and uniform coating of Pt on both side of composite polymer membrane surfaces. Cyclic voltammetry, linear sweep voltammetry, transmission electron microscopy, Fourier transforms infrared spectroscopy, thermal gravimetric analysis, X‐ray diffraction, and tip displacement of ThP‐PANI‐Pt IPMC membrane actuator was also examined. POLYM. ENG. SCI., 57:258–267, 2017. © 2016 Society of Plastics Engineers