bluuebunny/crossref_metadata_2025_split huggingface dataset:
pengaruh profitabilitas dan leverage terhadap nilai perusahaan melalui kebijakan dividen sebagai variabel intervening pada perusahaan manufaktur yang terdaftar BEI periode 2018-2022
Authors: Silvia afrelia  , Mondra Neldi  , Dodi Suryadi  
Published: April 2024

Silvia Afrelia, 20101155310142, jurusan manajemen keuangan, tahun 2018-2022, Pengaruh Profitabilitas Dan Leverage Terhadap Nilai Perusahaan Melalui Kebijakan Dividen Sebagai Variabel Intervening Pada Perusahaan Manufaktur Yang Terdaftar Di Bursa Efek Indonesia Pada Periode 2018-2022. Dibawah bimbingan I bapak Dr. Mondra Neldi, SE., MM dan pembimbing II bapak Dodi Suryadi,SE., MMPenelitian ini bertujuan untuk mengetahui seberapa besar pembahasan Pengaruh Profitabilitas Dan Leverage Terhadap Nilai Perusahaan Melalui Kebijakan Dividen Sebagai Variabel Intervening Pada Perusahaan Manufaktur Yang Terdaftar Di Bursa Efek Indonesia Pada Periode 2018-2022. Metode dokumentasi dan jenis data sekunder. Metode dokumentasi yang digunakan adalah analisis jenis data sekunder. Hasil penelitian yang didapatkan berdasarkan uji parsial (uji t) diperoleh : Profitabilitas secara parsial berpengaruh signifikan terhadap Kebijakan Dividen Pada Perusahaan Manufaktur Yang Terdaftar Di BEIhasil analisis menunjukkan Profitabilitas memiliki nilai probability sebesar 0,00 lebih kecil dari 0,05 atau (0,00 < 0,05), Leverage secara parsial berpengaruh signifikan terhadap Kebijakan Dividen Pada Perusahaan Manufaktur Yang Terdaftar Di BEI hasil analisis menunjukkan Leverage memiliki nilai probability sebesar 0,00 lebih kecil dari 0,05 atau (0,00 < 0,05), Profitabilitas secara parsial tidak berpengaruh signifikan terhadap Nilai Perusahaan Pada Perusahaan Manufaktur Yang Terdaftar Di BEI dimana hasil analisis menunjukkanProfitabilitas memiliki nilai probability sebesar 0,31 lebih besar dari 0,05 atau (0,31 > 0,05), Leverage secara parsial berpengaruh signifikan terhadap Nilai Perusahaan Pada Perusahaan Manufaktur Yang Terdaftar Di BEI dimana hasil analisis menunjukkan Leverage memiliki nilai probability sebesar 0,00 lebih kecil dari 0,05 atau (0,00 < 0,05), Kebijakan Dividen secara parsial berpengaruh signifikan terhadap Nilai Perusahaan Pada Perusahaan Manufaktur Yang Terdaftar Di BEI dimana hasil analisis menunjukkan Kebijakan Dividen memilikinilai sebesar 0,00 lebih kecil dari 0,05 atau (0,00 < 0,05), Profitabilitas secara parsial berpengaruh signifikan terhadap Nilai Perusahaan dengan Kebijakan Dividen Sebagai Variabel Intervening Pada Perusahaan Manufaktur Yang Terdaftar Di BEI dimana hasil perkalian antara nilai beta X1 terhadap Z dengan nilai beta Z terhadap Y yaitu : 0,253 * 0.275 Maka pengaruh total yang diberikan X1 terhadap Y adalah jumlah pengaruh langsung dan tidak langsung yaitu : 0.069, Leverage secara parsial tidak berpengaruh signifikan terhadap Nilai Perusahaan dengan Kebijakan Dividen Sebagai Variabel Intervening Pada Perusahaan Manufaktur Yang Terdaftar Di BEI dimana perkalian antara nilai beta X2 terhadap Z dengan nilai beta Z terhadap Y yaitu : 0.431 * 0.275 Maka pengaruh total yang diberikan X2 terhadap Y adalah jumlah pengaruh langsung dan tidak langsung yaitu : 0.118
Kajian Hermeneutika Hans Gorg Gadamer dan Relevansinya Dengan Pendidikan Agama Islam
Authors: Salimah Binti 
Published: April 2024

Kata hermeneutika itu sendiri berasal dari bahasa Yunani hermeneuien, yang memilki arti menafsirkan. Maka kata hermeneutika secara harfiah dapat diartikan sebagai penafsiran dan interprestasi. Istilah Yunani ini mengingatkan kita pada tokoh mitos yang bernam Harmes, yaitu seorang utusan untuk menyampaikan pesan jupiter kepada manusia. Berkiblat pada Martin Heidegger, Gadamer pun mempercayai bahwa hermeneutika salah satu pencarian proses universal dari tindakan pemahaman tentang adanya sesuatu. Pemahaman mesti dipandang sebagai sikap yang fundamental dalam kehidupan manusia, atau mungkin lebih tepatnya mengerti merupakan suatu jalan berada manusia sendiri. Oleh sebab itu, eksistensi manusia itu disertai dengan pemahaman itu sendiri. Hermeneutika Gadamer adalah suatu pemahaman terhadap suatu teks itu dengan didibatkan dengan berbagai teori dan unsur yang menyertainyai yaitu dialog, sejarah dan bahasa. Hermenetika relevan dengan dunia pendidikan baik itu pendidikan umum ataupun pendidikan agama Islam. Dan dalam pembelajaran ada proses hermenetika.
De la critique théorique à la critique de la société : penser le concept de réification chez Gilles Deleuze et Félix Guattari
Authors: Richert Fabien 
Published: April 2024

Dans cet article, j’examine les points de rencontre possibles entre l’oeuvre de Deleuze et Guattari et la théorie critique de l’École de Francfort afin d’établir leur complémentarité. L’hypothèse que je défends est que c’est à partir d’un concept phare de la théorie critique, la réification, qu’il est possible d’opérer un rapprochement productif entre les penseurs de l’École de Francfort et Deleuze et Guattari. Dans la première partie, le concept de réification et le rôle que celui-ci a joué dans la pensée critique allemande sont présentés (Marx, Lukács, Adorno). Cet exercice doit permettre de mesurer la pertinence du concept de réification pour établir une double critique : critique théorique et critique de la société. Dans la seconde partie, je montre comment cette double critique traverse la pensée deleuzo-guattarienne.
The comparative plastisphere microbial community profile at Kung Wiman beach unveils potential plastic-specific degrading microorganisms
Authors: Chaimusik Nutsuda , Sombuttra Natthaphong , Nakaramontri Yeampon , Sompongchaiyakul Penjai , Charoenpong Chawalit , Intra Bungonsiri , Euanorasetr Jirayut 
Published: April 2024

Background
Plastic waste is a global environmental issue that impacts the well-being of humans, animals, plants, and microorganisms. Microplastic contamination has been previously reported at Kung Wiman Beach, located in Chanthaburi province along with the Eastern Gulf of Thailand. Our research aimed to study the microbial population of the sand and plastisphere and isolate microorganisms with potential plastic degradation activity.

Methods
Plastic and sand samples were collected from Kung Wiman Beach for microbial isolation on agar plates. The plastic samples were identified by Fourier-transform infrared spectroscopy. Plastic degradation properties were evaluated by observing the halo zone on mineral salts medium (MSM) supplemented with emulsified plastics, including polystyrene (PS), polylactic acid (PLA), polyvinyl chloride (PVC), and bis (2-hydroxyethyl) terephthalate (BHET). Bacteria and fungi were identified by analyzing nucleotide sequence analysis of the 16S rRNA and internal transcribed spacer (ITS) regions, respectively. 16S and ITS microbiomes analysis was conducted on the total DNA extracted from each sample to assess the microbial communities.

Results
Of 16 plastic samples, five were identified as polypropylene (PP), four as polystyrene (PS), four as polyethylene terephthalate (PET), two as high-density polyethylene (HDPE), and one sample remained unidentified. Only 27 bacterial and 38 fungal isolates were found to have the ability to degrade PLA or BHET on MSM agar. However, none showed degradation capabilities for PS or PVC on MSM agar. Notably, Planococcus sp. PP5 showed the highest hydrolysis capacity of 1.64 ± 0.12. The 16S rRNA analysis revealed 13 bacterial genera, with seven showing plastic degradation abilities: Salipiger, Planococcus, Psychrobacter, Shewanella, Jonesia, Bacillus, and Kocuria. This study reports, for the first time of the BHET-degrading properties of the genera Planococcus and Jonesia. Additionally, The ITS analysis identified nine fungal genera, five of which demonstrated plastic degradation abilities: Aspergillus, Penicillium, Peacilomyces, Absidia, and Cochliobolus. Microbial community composition analysis and linear discriminant analysis effect size revealed certain dominant microbial groups in the plastic and sand samples that were absent under culture-dependent conditions. Furthermore, 16S and ITS amplicon microbiome analysis revealed microbial groups were significantly different in the plastic and sand samples collected.

Conclusions
We reported on the microbial communities found on the plastisphere at Kung Wiman Beach and isolated and identified microbes with the capacity to degrade PLA and BHET.
Differential sensitivity to the effects of nicotine and bupropion in adolescent and adult male OF1 mice during social interaction tests
Authors: Gómez M.C. , Carrasco M.C. , Redolat R. 
Published: March 2008

AbstractFew studies have compared the action of both nicotine (NIC) and bupropion (BUP), an antidepressant used to treat NIC dependence, on social and aggressive behavior at different ages. This study aims to determine whether these drugs produce differential effects in adolescent (postnatal day: 36–37) and adult (postnatal day: 65–66) mice that have been housed individually for 2 weeks in order to induce aggressive behavior. Mice received BUP (40, 20, or 10 mg/kg), NIC (1, 0.5, and 0.25 mg/kg as base), or vehicle earlier to a social interaction test. BUP (40 mg/kg) decreased social investigation and increased nonsocial exploration in both adolescent and adult mice. The same effects were also observed in adult mice administered with a lower dose of the same drug (20 mg/kg). In adolescents, NIC (1 mg/kg) decreased social investigation, but this effect did not reach statistical significance in adults. In conclusion, a differential sensitivity to the effects of NIC or BUP emerged in some of the behavioral categories when the two age groups were compared. Aggr. Behav. 34:369–379, 2008. © 2008 Wiley‐Liss, Inc.
Electroactive Nanorods and Nanorings Designed by Supramolecular Association of π‐Conjugated Oligomers
Authors: Dautel Olivier J. , Robitzer Mike , Flores Jean‐Charles , Tondelier Denis , Serein‐Spirau Françoise , Lère‐Porte Jean‐Pierre , Guérin David , Lenfant Stéphane , Tillard Monique , Vuillaume Dominique , Moreau Joël J. E. 
Published: March 2008

AbstractIn investigations into the design and isolation of semiconducting nano‐objects, the synthesis of a new bisureido π‐conjugated organogelator has been achieved. This oligo(phenylenethienylene) derivative was found to be capable of forming one‐dimensional supramolecular assemblies, leading to the gelation of several solvents. Its self‐assembling properties have been studied with different techniques (AFM, EFM, etc.). Nano‐objects have successfully been fabricated from the pristine organogel under appropriate dilution conditions. In particular, nanorods and nanorings composed of the electroactive organogelator have been isolated and characterized. With additional support from an electrochemical study of the organogelator in solution, it has been demonstrated by the EFM technique that such nano‐objects were capable of exhibiting charge transport properties, a requirement in the fabrication of nanoscale optoelectronic devices. It was observed that positive charges can be injected and delocalized all along an individual nano‐object (nanorod and nanoring) over micrometers and, remarkably, that no charge was stored in the center of the nanoring. It was also observed that topographic constructions in the nanostructures prevent transport and delocalization. The same experiments were performed with a negative bias (i.e., electron injection), but no charge delocalization was observed. These results could be correlated with the nature of 1, which is a good electron‐donor, so it can easily be oxidized, but can be reduced only with difficulty.
New Architectures for Dye‐Sensitized Solar Cells
Authors: Martinson Alex B. F. , Hamann Thomas W. , Pellin Michael J. , Hupp Joseph T. 
Published: March 2008

AbstractModern dye‐sensitized solar cell (DSSC) technology was built upon nanoparticle wide bandgap semiconductor photoanodes. While versatile and robust, the sintered nanoparticle architecture exhibits exceedingly slow electron transport that ultimately restricts the diversity of feasible redox mediators. The small collection of suitable mediators limits both our understanding of an intriguing heterogeneous system and the performance of these promising devices. Recently, a number of pseudo‐1D photoanodes that exhibit accelerated charge transport and greater materials flexibility were fabricated. The potential of these alternative photoanode architectures for advancing, both directly and indirectly, the performance of DSSCs is explored.
Efficient Rhodium‐Catalyzed Installation of Unsaturated Ester Functions onto Porphyrins: Site‐Specific Heck‐Type Addition versus Conjugate Addition
Authors: Baba Hiromi , Chen Jinping , Shinokubo Hiroshi , Osuka Atsuhiro 
Published: March 2008

AbstractA facile introduction of α,β‐ or α,β,γ,δ‐unsaturated ester functions onto porphyrins was achieved through rhodium‐catalyzed addition of β‐borylporphyrins to acrylate or 2,4‐pentadienoate esters. The reaction of meso‐borylporphyrins with acrylates exclusively afforded saturated esters by 1,4‐conjugate addition under the same reaction conditions. Thus, the reaction mode (Heck‐type versus conjugate addition) is highly dependent on the reaction site (β versus meso). This functionalization has a significant impact on the electronic properties of the π system of porphyrins, which induces a substantial redshift and broadening in the absorption spectra by effective conjugation through the β positions. The coplanar structure of the unsaturated ester moieties with respect to the porphyrin core has been unambiguously elucidated by X‐ray crystallographic analysis.
Modifications of gustatory nerve synapses onto nucleus of the solitary tract neurons induced by dietary sodium‐restriction during development
Authors: May Olivia L. , Erisir Alev , Hill David L. 
Published: March 2008

AbstractThe terminal fields of nerves carrying gustatory information to the rat brainstem show a remarkable amount of expansion in the nucleus of the solitary tract (NTS) as a result of early dietary sodium restriction. However, the extent to which these axonal changes represent corresponding changes in synapses is not known. To identify the synaptic characteristics that accompany the terminal field expansion, the greater superficial petrosal (GSP), chorda tympani (CT), and glossopharyngeal (IX) nerves were labeled in rats fed a sodium‐restricted diet during pre‐ and postnatal development. The morphology of these nerve terminals within the NTS region where the terminal fields of all three nerves overlap was evaluated by transmission electron microscopy. Compared to data from control rats, CT axons were the most profoundly affected. The density of CT arbors and synapses quadrupled as a result of the near life‐long dietary manipulation. In contrast, axon and synapse densities of GSP and IX nerves were not modified in sodium‐restricted rats. Furthermore, compared to controls, CT terminals displayed more instances of contacts with postsynaptic dendritic protrusions and IX terminals synapsed more frequently with dendritic shafts. Thus, dietary sodium restriction throughout pre‐ and postnatal development had differential effects on the synaptic organization of the three nerves in the NTS. These anatomical changes may underlie the impact of sensory restriction during development on the functional processing of taste information and taste‐related behaviors. J. Comp. Neurol. 508:529–541, 2008. © 2008 Wiley‐Liss, Inc.
Insight into the Reactions of Trifluorovinylsilanes with Aromatic Aldehydes
Authors: Kirij Nataliia V. , Dontsova Dariya A. , Pavlenko Natalya V. , Yagupolskii Yurii L. , Scherer Harald , Tyrra Wieland , Naumann Dieter 
Published: March 2008

AbstractThe conditions for the selective addition of trialkyl(trifluorovinyl)silanes to the C=O bond of aromatic aldehydes in the presence of cesium fluoride to give the corresponding“silylated” alcohols in high yields was performed. The reactivity of the “silylated” alcohols in the presence of nucleophilic reagents and Brönsted acids was studied. On the basis of isolated compounds and of intermediates detected by NMR spectroscopic methods, several reaction pathways are proposed. Significant differences between the reaction behaviour of triethyl(trifluorovinyl)silane and trimethyl(trifluoromethyl)silane under comparable conditions are pointed out; the differences can be attributed to the highly reactive trifluorovinyl group. The reactions of the “silylated” alcohols proceed with high stereoselectivity to give propenes, acid fluorides and acids of the (E) isomers in better than 98 % purity. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2008)
Electrochemical Quartz Crystal Microbalance Studies on the Codeposition of Dextran Sodium Sulfate with the Charge‐Transfer Complexes Generated During Electrooxidation of Benzidine Derivatives
Authors: Jiang Xueqin , Cao Zhijun , Liu Tao , Xie Qingji , Yao Shouzhuo 
Published: March 2008

AbstractThe electrochemical quartz crystal microbalance (EQCM) technique was used to investigate the electrochemistry of three benzidine derivatives, o‐tolidine (o‐TD), 3,3′,5,5′‐tetramethyl‐benzidine (TMB) and o‐dianisidine (o‐DA), in Britton‐Robinson (B‐R) buffer solutions with and without coexisting dextran sodium sulfate (DSS), respectively. During the anodic potential sweep from 0.1 to 0.7 V vs. SCE in pH 5.0 B‐R buffer solution containing o‐TD, the EQCM frequency was decreased during the first‐step oxidation of o‐TD and then increased to some extent during its second‐step oxidation, implying that a poorly soluble charge‐transfer complex (CTC) was produced here as an oxidation intermediate, and its precipitation and then dissolution at the EQCM Au electrode decreased and then increased the frequency. The depth of the V‐shaped time‐dependent frequency response (−Δf0V) to the redox switching of the CTC/o‐TD couple (0.1–0.37 V vs. SCE) was notably enhanced in the presence of DSS, being due to the formation of a mass‐enhanced CTC‐DSS adduct via electrostatic affinity. Similar phenomena were evident in the TMB system, but the CTC behavior was not observed during o‐DA oxidation in the absence of DSS, namely, the EQCM frequency kept decreasing all the time, due probably to the too high lability of the CTC from o‐DA oxidation, and the coexistence of DSS could well stabilize this CTC and turn on its CTC behavior. The o‐TD system showed the highest sensitivity to DSS and was thus examined in detail. The mechanism for the CTC‐DSS interaction is discussed from EQCM, FT‐IR and UV‐vis data. The CTC‐based EQCM determination of DSS, which is featured by a dynamically renewed surface of the detection electrode, was thus proposed, with a linear range from 0.002 to 1.6 μmol L−1 and a detection limit down to 0.7 nmol L−1 (o‐TD system).
Fabrication and Application of a Novel Modified Electrode Based on Multiwalled Nanotubes/Cerium(III) 12‐Tungstophosphoric Acid Nanocomposite
Authors: Fang Bin , Chen Daolei , Huang Qiang , Wei Yan , Wang Guangfeng 
Published: March 2008

AbstractA novel multiwalled nanotubes (MWNTs)/Cerium(III) 12‐tungstophosphoric acid (CePW) nanocomposite film glassy carbon electrode was prepared in this paper. Electrochemical behaviors of the CePW/MWNTs modified electrode were investigated by electrochemical impedance spectroscopy (EIS) and cyclic voltammetry (CV). This modified electrode brought new capabilities for electrochemical devices by combining the advantages of carbon nanotubes, rare‐earth, and heteropoly‐acids. The results demonstrated that the CePW/MWNTs modified electrode exhibited enhanced electrocatalytic behavior and good stability for the detection of guanine and adenine in 0.1 M PBS (pH 7.0). The experimental parameters were optimized and a direct electrochemical method for the simultaneous determination of guanine and adenine was proposed. The detection limit (S/N=3) for guanine and adenine was 2.0×10−8 M and 3.0×10−8 M, respectively. Further, the acid‐denatured calf thymus DNA was also detected and the result was satisfied.
Electrocatalytic Application of an Overoxidized Dopamine Film Prepared on a Gold Electrode Surface to Selective Epinephrine Sensing
Authors: Łuczak Teresa 
Published: March 2008

AbstractA dopamine polymer film was prepared ex situ on a bare gold template from a 10 mM dopamine solution in phosphate buffer, pH 7 followed by an overoxidation in 500 mM NaOH. The modified electrode was used for quantitative determination of epinephrine. A linear relationship between epinephrine concentration and current response was obtained in the range between 2 μM and 800 μM with the detection limit of 0.3 μM. The results have shown that using the overoxidized dopamine film it is possible to perform electrochemical analysis of epinephrine without interference of ascorbic and uric acids.
Electrochemical Determination of the Antioxidant Capacity: The Ceric Reducing/Antioxidant Capacity (CRAC) Assay
Authors: de Queiroz Ferreira Rafael , Avaca Luis Alberto 
Published: March 2008

AbstractThe CRAC assay is a direct electron transfer test of antioxidant capacity for several organic compounds. The ability of eight different compounds in reducing Ce4+ was studied by chronoamperometric measurements of the remaining Ce3+ species. The following antioxidant classification was observed: tannic acid $\rm{ \gg }$ quercetin>rutin>gallic acid≈catechin>ascorbic acid>BHA>Trolox. These results agree with others already published and a good correlation (R2=0.937) was found with the classical spectrophotometric FRAP assay. The CRAC assay is simple, fast, free from sample pretreatment and applicable to nontransparent samples.
Dual‐Genic Hybridization Sensor Employing Electrochemical Impedance Spectroscopy
Authors: Bonanni Alessandra , Calvo Daniel , del Valle Manuel 
Published: March 2008

AbstractA dual‐genic impedimetric sensor for DNA hybridization detection is proposed for the first time. Two different single‐stranded DNA probes (P1=d(pA)20 and P2=d(pG)20) were immobilized onto the graphite‐epoxy electrode surface and impedimetric measurements were performed. Hybridization experiments were carried out employing complementary targets (P1c=d(pT)20 or P2c=d(pC)20) alone, or combined (P1c+P2c), as well as noncomplementary DNA sequences. As from the direct observation of impedance spectra it was not possible to resolve the binary gene mixture, the use of artificial neural networks (ANN) was proposed for extracting significant information to get desired results.
Electroanalytical Study of the Antioxidant and Antitumor Agent Curcumin
Authors: Stanić Z. , Voulgaropoulos A. , Girousi S. 
Published: March 2008

AbstractCurcumin (CU) shows a wide range of pharmacological properties including antioxidant, anti‐inflammatory, and antitumor effects. In order to understand the chemical basis of different activities of curcumin, we have studied the oxidation and reduction of curcumin. Based on cyclic and differential pulse voltammetric methods, using carbon paste and hanging mercury drop electrodes, in the present study we tested different parameters to optimize the conditions for the determination of curcumin and its electrochemical characteristics. Better results were obtained via differential pulse voltammetry using carbon paste electrode. Curcumin yields well‐defined differential pulse voltammetric responses with well‐defined oxidation (in the potential region of 0.3–0.6 V, vs. Ag/AgCl) and reduction (at 0.3 V) peaks using carbon paste electrode.