bluuebunny/crossref_metadata_2025_split huggingface dataset:
Discurso e Realidade
Authors: Alves Vieira Leonardo 
Published: August 2024

O tema de investigação deste artigo é o diálogo entre Hegel (1770-1831) e Nagarjuna (c. 150 – c. 250 EC) e se concentra no segundo capítulo da Fenomenologia do Espírito (1807) de Hegel — A percepção ou a coisa e o engano —, e o terceiro capítulo dos Versos fundamentais do caminho do meio de Nagarjuna — exame das esferas ou bases sensoriais (ayatana-pariksa). Para tanto, investigaremos o Abhidhamma em busca da relação entre as realidades últimas e irredutíveis (dhammas) e as bases sensoriais. Este estudo é necessário para entender o contexto da crítica nagarjuniana à interpretação do Abhidhamma sobre as bases sensoriais e os dhammas. Após estes dois primeiros passos, passamos ao estudo da interpretação hegeliana de nossos atos perceptivos, constatando convergências e divergências com a interpretação das bases sensoriais por parte de Nagarjuna. Por fim, no quarto e último passo, estaremos em condições de identificar as formulações oferecidas por Nagarjuna e Hegel sobre cooriginação dependente, características distintivas dos entes e palavra (pratitya-samutpada, nimitta e vac, Nagarjuna) e relação, propriedade e linguagem/palavras (Verhalten/Verhältnis, Eigenschaft e Sprache/Worte, Hegel), bem como sobre a capacidade do discurso de dizer o que é o real: o propósito do diálogo aqui construído.
Perancangan Sistem Informasi Pemesanan Barang Berbasis Web Pada Dinas Pertanian Kabupaten Soppeng
Authors: Suwandi Ihsanulfu'ad , Asmi Ditya Zul , Rachmat Zul , Wahyu Muh. Jumadil 
Published: August 2024

Sistem informasi terus berkembang seiring dengan perkembangan teknologi informasi yang sangat cepat dan keberadaan sistem informasi sangat dibutuhkan untuk mendukung kinerja dalam meningkatan efisiensi, efektivitas dan produktivitas berbagai organisasi. Berkas pesanan dan nota pesanan barang merupakan bukti bahwa bidang pada kantor telah melakukan pemesanan pada supplier tertentu. Pokok masalah pada penelitian ini yaitu bagaimana cara membuat sistem informasi yang dapat digunakan dalam pencatatan pemesanan barang barang pada Dinas Pertanian Kabupaten Soppeng. Tujuan yang hendak dicapai dalam penelitian ini yaitu meminimalisir kesalahan pegawai dalam melakukan penomoran, pencatatan pesanan dan nota pesanan barang. Dalam pembuatan sistem informasi ini peneliti menggunakan beberapa metode diantaranya metode wawancara, observasi dan studi literatur. Adapun hasil dari penelitian ini yaitu dengan adanya sebuah sistem informasi pemesanan barang berbasis website pada Dinas Pertanian Kabupaten Soppeng dapat memberikan kemudahan bagi pegawai Dinas Pertanian Kabupaten Soppeng dalam mengelola data laporan pencatatan pemesanan barang.
MENINGKATKAN KEMAMPUAN GURU DALAM MANAJEMENKELAS MELALUI SUPERVISI KLINIS DI MTS AZZAINIYYAH
Authors: Kurniawan Rizki , Ginanjar Wahyu 
Published: August 2024

Kajian ini berawal dari masih lemahnya keterampilan mengajar para guru Mts Azzainiyyah. Dianggap serius, pengelolaan kelas hanyalah rutinitas. Fungsi rutin ditunjukkan kehadiran guru hanya untuk akhir pelajaran kelas, ketika pelajaran berakhir, tugas selesai Tujuan dari penelitian ini adalah untuk meningkatkan keterampilan pengelolaan kelas guru melalui pengajaran. Hasil penelitian ini harus memberikan kontribusi untuk masukan, evaluasi dan perbaikan kepemimpinan guru di Mts Azzainiyyah. Jenis penelitian ini adalah penelitian tindakan sekolah (PTS) yang menggunakan pendekatan kualitatif. Data penelitian berupa informasi proses dan hasil operasi, informasi hasil observasi, hasil evaluasi, diskusi dan dokumentasi. Sumber informasi adalah proses implementasi langkah-langkah pemantauan untuk Mts Azzainiyyah. Analisis data dilakukan dengan menggunakan model analisis data kualitas Hasil penelitian menunjukkan bahwa pemantauan Mts Azzainiyyah dapat meningkatkan keterampilan pengelolaan kelas guru. Hal ini tercermin dari estimasi Siklus II yang lebih tinggi dari hasil pemantauan Siklus I yang meningkat sebesar 65%. hingga 80% Dengan demikian, pelaksanaan supervisi klinis berhasil meningkatkan kemampuan guru manajemen kelas.
Interstellar hydrogen ionization in the heliosheath
Authors: Gruntman Mike 
Published: July 2015

AbstractThe expanding solar wind plasma undergoes a shock transition at the interstellar boundary of the solar system and fills the inner heliosheath, the region between the termination shock and the heliopause. The nonequilibrium heliosheath plasma is a main source of energetic neutral atoms that allow remote probing of the heliospheric interface region. Global models of the heliosphere interaction with the interstellar medium often disregard solar photoionization and electron impact ionization of interstellar gas in the heliosheath. When ionization is included, it is commonly treated in a simplified manner and complexity of heliospheric interactions obscures its effect on the properties of the plasma. This work concentrates on physical estimates of ionization and shows that it may lead to significant mass loading of plasma flows in the heliosheath. In turn, mass loading would slow down plasma flows and deplete populations of nonthermal energetic protons. The magnitude of the effect depends on poorly understood and largely unknown energy transfer to electrons at the termination shock and beyond. The presented estimates show that inclusion of ionization is indispensable for global heliospheric modeling and for interpretation of heliosphere imaging in fluxes of energetic neutral atoms.
The Role of the NDQ Motif in Sodium‐Pumping Rhodopsins
Authors: Inoue Keiichi , Konno Masae , Abe‐Yoshizumi Rei , Kandori Hideki 
Published: July 2015

AbstractSodium‐pumping rhodopsins (NaRs) are light‐driven outward Na+ pumps. NaRs have a conserved Asn, Asp, and Gln motif (NDQ) in the third transmembrane helix (helix C). The NDQ motif is thus expected to play a crucial role in the operation of the Na+ pump. Herein, we studied the photocycles of the NDQ‐motif mutants of Krokinobacter rhodopsin 2 (KR2), the first discovered NaR, by flash photolysis, to obtain insight into the mechanism of Na+ transport. For example, the KR2 N112A mutant did not accumulate the transient red‐shifted Na+‐bound state, suggesting that Asn112 is vital for the binding of Na+ ions. Additionally, Q123A and Q123V mutants showed significantly slower Na+ uptake and recovery of the initial state. Overall, the Gln123 residue was found to contribute to the optimization of the kinetics of sodium‐ion uptake and release. These results demonstrate that the cooperative operation of the three residues of the NDQ motif are important in the operation of the Na+ pump.
Silicates as Latent Alkyl Radical Precursors: Visible‐Light Photocatalytic Oxidation of Hypervalent Bis‐Catecholato Silicon Compounds
Authors: Corcé Vincent , Chamoreau Lise‐Marie , Derat Etienne , Goddard Jean‐Philippe , Ollivier Cyril , Fensterbank Louis 
Published: July 2015

AbstractThis works introduces hypervalent bis‐catecholato silicon compounds as versatile sources of alkyl radicals upon visible‐light photocatalysis. Using Ir[(dF(CF3)ppy)2(bpy)](PF6) (dF(CF3)ppy=2‐(2,4‐difluorophenyl)‐5‐trifluoromethylpyridine, bpy=bipyridine) as catalytic photooxidant, a series of alkyl radicals, including highly reactive primary ones can be generated and engaged in various intermolecular homolytic reactions. Based on cyclic voltammetry, Stern–Volmer studies, and supported by calculations, a mechanism involving a single‐electron transfer from the silicate to the photoactivated iridium complex has been proposed. This oxidative photocatalyzed process can be efficiently merged with nickel‐catalyzed CC cross‐coupling reactions.
Performance on the Adult Rheumatology In‐Training Examination and Relationship to Outcomes on the Rheumatology Certification Examination
Authors: Lohr Kristine M. , Clauser Amanda , Hess Brian J. , Gelber Allan C. , Valeriano‐Marcet Joanne , Lipner Rebecca S. , Haist Steven A. , Hawley Janine L. , Zirkle Sarah , Bolster Marcy B. ,   for the American College of Rheumatology Committee on Rheumatology Training and Workforce Issues
Published: July 2015

ObjectiveThe American College of Rheumatology (ACR) Adult Rheumatology In‐Training Examination (ITE) is a feedback tool designed to identify strengths and weaknesses in the content knowledge of individual fellows‐in‐training and the training program curricula. We determined whether scores on the ACR ITE, as well as scores on other major standardized medical examinations and competency‐based ratings, could be used to predict performance on the American Board of Internal Medicine (ABIM) Rheumatology Certification Examination.MethodsBetween 2008 and 2012, 629 second‐year fellows took the ACR ITE. Bivariate correlation analyses of assessment scores and multiple linear regression analyses were used to determine whether ABIM Rheumatology Certification Examination scores could be predicted on the basis of ACR ITE scores, United States Medical Licensing Examination scores, ABIM Internal Medicine Certification Examination scores, fellowship directors’ ratings of overall clinical competency, and demographic variables. Logistic regression was used to evaluate whether these assessments were predictive of a passing outcome on the Rheumatology Certification Examination.ResultsIn the initial linear model, the strongest predictors of the Rheumatology Certification Examination score were the second‐year fellows’ ACR ITE scores (β = 0.438) and ABIM Internal Medicine Certification Examination scores (β = 0.273). Using a stepwise model, the strongest predictors of higher scores on the Rheumatology Certification Examination were second‐year fellows’ ACR ITE scores (β = 0.449) and ABIM Internal Medicine Certification Examination scores (β = 0.276). Based on the findings of logistic regression analysis, ACR ITE performance was predictive of a pass/fail outcome on the Rheumatology Certification Examination (odds ratio 1.016 [95% confidence interval 1.011–1.021]).ConclusionThe predictive value of the ACR ITE score with regard to predicting performance on the Rheumatology Certification Examination supports use of the Adult Rheumatology ITE as a valid feedback tool during fellowship training.
Selective C−H and C−C Bond Activation: Electronic Regimes as a Tool for Designing d10 MLn Catalysts
Authors: Wolters Lando P. , Bickelhaupt F. Matthias 
Published: July 2015

AbstractWe wish to understand how a transition‐metal catalyst can be rationally designed so as to selectively activate one particular bond in a substrate, herein, C−H and C−C bonds in ethane. To this end, we quantum chemically analyzed the activity and selectivity of a large series of model catalysts towards ethane and, for comparison, methane, by using the activation strain model and quantitative molecular orbital theory. The model catalysts comprise d10 MLn complexes with coordination numbers n=0, 1, and 2; metal centers M=Co−, Rh−, Ir−, Ni, Pd, Pt, Cu+, Ag+, and Au+; and ligands L=NH3, PH3, and CO. Our analyses reveal that rather subtle electronic differences between bonds can be exploited to induce a lower barrier for activating one or the other, depending, among other factors, on the catalyst's electronic regime (i.e., s‐regime versus d‐regime catalysts). Interestingly, the concepts and design principles emerging from this work can also be applied to the more challenging problem of differentiating between activation of the C−H bonds in ethane versus those in methane.
Short Synthesis of [5]‐ and [7]Phenacenes with Silyl Groups at the Axis Positions
Authors: Roy David , Maekawa Hiroyuki , Murai Masahito , Takai Kazuhiko 
Published: July 2015

Abstract[5]Phenacene with trimethylsilyl groups at the axis positions was synthesized by the ruthenium‐catalyzed direct C−H arylation of a 1‐formyl‐7‐phenanthrene‐derived aldimine, followed by sequential Wittig olefination and bismuth‐catalyzed cyclization of the resulting vinyl ethers. By using the same synthetic building blocks and sequential Wittig olefination and photocyclization, the number of fused benzene rings was readily increased to seven to afford 3,12‐disilyl[7]phenacene. The introduction of silyl groups endowed the [n]phenacene frameworks with good solubility, as well as enabling further functionalization. The electronic structure of these new [n]phenacenes was determined by photophysical measurements and by density functional theory calculations, which clearly implied effective conjugation throughout the entire π framework.
Enhanced Charge Separation Efficiency in Pyridine‐Anchored Phthalocyanine‐Sensitized Solar Cells by Linker Elongation
Authors: Ikeuchi Takuro , Agrawal Saurabh , Ezoe Masayuki , Mori Shogo , Kimura Mutsumi 
Published: July 2015

AbstractA series of zinc phthalocyanine sensitizers (PcS22–24) having a pyridine anchoring group are designed and synthesized to investigate the structural dependence on performance in dye‐sensitized solar cells. The pyridine‐anchor zinc phthalocyanine sensitizer PcS23 shows 79 % incident‐photon to current‐conversion efficiency (IPCE) and 6.1 % energy conversion efficiency, which are comparable with similar phthalocyanine dyes having a carboxylic acid anchoring group. Based on DFT calculations, the high IPCE is attributed with the mixture of an excited‐state molecular orbital of the sensitizer and the orbitals of TiO2. Between pyridine and carboxylic acid anchor dyes, opposite trends are observed in the linker‐length dependence of the IPCE. The red‐absorbing PcS23 is applied for co‐sensitization with a carboxyl‐anchor organic dye D131 that has a complementary spectral response. The site‐selective adsorption of PcS23 and D131 on the TiO2 surface results in a panchromatic photocurrent response for the whole visible‐light region of sun light.
The changing influence of El Niño on the Great Plains low‐level jet
Authors: Liang Yu‐Chiao , Yu Jin‐Yi , Lo Min‐Hui , Wang Chunzai 
Published: July 2015

AbstractThis study finds that the El Niño influences on the summer Great Plains low‐level jet (GPLLJ) are different for the Central Pacific (CP) and Eastern Pacific (EP) types during their decaying phases. While the CP El Niño induces negative sea level pressure anomalies over the Gulf of Mexico to drive anomalous northerly winds weakening the GPLLJ, the EP El Niño intensifies the GPLLJ by inducing anomalous surface air temperature gradient between the northeastern and southwestern United States. The recent emerging CP El Niño can weaken the GPLLJ to lead to a drier environment in the central United States.
Interest‐driven avatar neighbor‐organizing for P2P transmission in distributed virtual worlds
Authors: Wang Mingfei , Jia Jinyuan , Xie Ning , Zhang Chenxi 
Published: July 2015

AbstractThe neighbor table/distributed hash table (DHT) is used to choose the data supplier for data‐dispatching services in distributed virtual environments based on peer‐to‐peer networks. It is essential that a stable and efficient neighbor table/DHT be maintained. Because the avatar has much freedom to roam, the spatial distribution of nodes is not uniform, and the logical topology may change dramatically. Therefore, traditional construction mechanisms, such as the neighbor‐discovery mechanism based on spatial distance or DHT, may involve fierce churn in the neighbor table and frequent message exchanges. In this paper, we proposed a dynamic node‐organizing mechanism that aims to solve these challenging problems by applying the avatar's behavioral characteristics to the neighbor maintenance mechanism and scene data transmission. First, we have summarized the common social behaviors of avatars and extracted their characteristics. We then propose an interest‐similarity measuring algorithm to divide the node into diverse clusters. Next, we measure the cluster stability in terms of interest entropy while constructing a stable neighbor mesh for each node in a cluster. We have conducted extensive simulation experiments that simulate avatar behaviors in a popular massively multiplayer online game. The results show that our proposed mechanism achieved a substantial alleviation of neighbor churn and reduced information exchange, which improves the transmission efficiency in distributed virtual environments. Copyright © 2015 John Wiley & Sons, Ltd.
CFD Analysis of Heat Transfer across the Laminar Wavy Film on a Centrifugal Molecular Distillator
Authors: Yu Jiang , Zeng Aiwu , Yuan Xigang , Zhang Xinyu , Ju Ji 
Published: July 2015

AbstractLaminar wave dynamics and the associated heat transfer across the spinning film is a highly important process in chemical engineering, but there is still a lack of sufficient investigation of the transfer flux based on the fundamental hydrodynamics parameters. A two‐dimensional computational fluid dynamics simulation of the spinning film on a centrifugal molecular distillator is performed in order to explore the effect of the interfacial wave behavior on the heat transfer. Numerical results reveal that the heat transfer is enhanced by the convective motions in the waves. Resulting from these findings, the relationship between the operation parameters and heat transfer is also discussed.
Effects of Alkyl Chain Length and Hydrogen Bonds on the Cooperative Self‐Assembly of 2‐Thienyl‐Type Diarylethenes at a Liquid/Highly Oriented Pyrolytic Graphite (HOPG) Interface
Authors: Yokoyama Soichi , Hirose Takashi , Matsuda Kenji 
Published: July 2015

AbstractAn appropriate understanding of the process of self‐assembly is of critical importance to tailor nanostructured order on 2D surfaces with functional molecules. Photochromic compounds are promising candidates for building blocks of advanced photoresponsive surfaces. To investigate the relationship between molecular structure and the mechanism of ordering formation, 2‐thienyl‐type diarylethenes with various lengths of alkyl side chains linked through an amide or ester group were synthesized. Their self‐assemblies at a liquid/solid interface were investigated by scanning tunneling microscopy (STM). The concentration dependence of the surface coverage was analyzed by using a cooperative model for a 2D surface based on two characteristic parameters: the nucleation equilibrium constant (Kn) and the elongation equilibrium constant (Ke). The following conclusions can be drawn. 1) The concentration at which a stable 2D molecular ordering is observed by STM exponentially decreases with increasing length of the alkyl chain. 2) Compounds bearing amide groups have higher degrees of cooperativity in self‐assembly on 2D surfaces (i.e., σ, which is defined as Kn/Ke) than compounds with ester groups. 3) The self‐assembly process of the open‐ring isomer of an ester derivative is close to isodesmic, whereas that of the closed‐ring isomer is cooperative because of the difference in equilibrium constants for the nucleation step (i.e., Kn) between the two isomers.
Photoinduced Carbon Monoxide Release from Half‐Sandwich Iron(II) Carbonyl Complexes by Visible Irradiation: Kinetic Analysis and Mechanistic Investigation
Authors: Jiang Xiujuan , Chen Limei , Wang Xiu , Long Li , Xiao Zhiyin , Liu Xiaoming 
Published: July 2015

AbstractThree half‐sandwich iron(II) complexes, [Fe(η5‐Cp)(cis‐CO)2X] (X−=Cl−, Br−, I−), were synthesized and characterized. The kinetics of the CO‐releasing behaviour of these complexes upon illumination by visible irradiation in various media was investigated. Our results indicated that the CO release was significantly affected by the auxiliary ligands. Of the three light sources used (blue, green, and red), blue light exhibited the highest efficiency. In the photoinduced CO release, the solvents and exogenous nucleophiles in the media were involved, which allowed their CO‐releasing reaction to comply with pseudo first‐order model rather than the characteristic zero‐order model for a photochemical reaction. In aqueous media (D2O), an intermediate bearing the core of {FeII(cis‐CO)2} involving cleavage of cyclopentadiene was detected. Despite the non‐absorption of the red light, its illumination combined with nucleophilic substitution did cause considerable CO release. Assessment of the cytotoxicity of the three complexes indicated that they showed good biocompatibility.
Phosphorescent Platinum(II) Complexes with C^C* Cyclometalated NHC Dibenzofuranyl Ligands: Impact of Different Binding Modes on the Decay Time of the Excited State
Authors: Tronnier Alexander , Wagenblast Gerhard , Münster Ingo , Strassner Thomas 
Published: July 2015

AbstractTwo C^C* cyclometalated platinum(II) N‐heterocyclic carbene (NHC) complexes with the general formula [(C^C*)Pt(O^O)] (C^C*=1‐dibenzofuranyl‐3‐methylbenzimidazolylidene; O^O=dimesitoylmethane) have been synthesized and extensively characterized, including solid‐state structure determination, 195Pt NMR spectroscopy, and 2D NMR (COSY, HSQC, HMBC, NOESY) spectroscopy to elucidate the impact of their structural differences. The two regioisomers differ in the way the dibenzofuranyl (DBF) moiety of the NHC ligand is bound to the metal center, which induces significant changes in their physicochemical properties, especially on the decay time of the excited state. Quantum yields of over 80 % and blue emission colors were measured.
Application of MS Transport Assays to the Four Human γ‐Aminobutyric Acid Transporters
Authors: Schmitt Sebastian , Höfner Georg , Wanner Klaus T. 
Published: July 2015

Abstractγ‐Aminobutyric acid (GABA) transporters (GATs) are promising drug targets for various diseases associated with imbalances in GABAergic neurotransmission. For the development of new drugs or pharmacological tools addressing GATs, screening techniques to identify new inhibitors and to characterize their potency at each GAT subtype are indispensable. By now, the technique by far dominating is based on radiolabeled GABA. We recently described “MS Transport Assays” for hGAT‐1 by employing (2H6)GABA as the substrate. In the present study, we applied this approach to all four human GAT subtypes and determined the KM values for GAT‐mediated transport of (2H6)GABA at each subtype. Furthermore, a comprehensive set of GAT inhibitors reflecting the whole range of potency and subtype selectivity known so far was evaluated for their potency. The comparison of pIC50 values obtained in conventional [3H]GABA uptake assays with those obtained in MS Transport Assays indicated the reliability of the latter. The MS Transport Assays enable a throughput similar to that of conventional radiometric transport assays performed in a 96‐well format but avoid the use of radiolabeled substrates.