bluuebunny/crossref_metadata_2025_split huggingface dataset:
ANALISIS MISKONSEPSI SISWA MENGUNAKAN PENDEKATAN KOGNITIF DALAM MATERI USAHA DAN ENERGI SISWA SMA NEGERI 1 KUPANG
Authors: Sukarjita I Wayan , Lantik Vinsensius , Takel Jen Melindi B.A Takel 
Published: July 2023

Miskonsepsi merupakan salah satu penyebab dari kesulitan belajar seorang siswa. Tujuan dari penelitian ini adalah mendapat informasi tentang ada tidaknya miskonsepsi siswa pada materi usaha dan energi dan faktor penyebabnya Miskonsepsi. Populasi dari penelitian ini adalah siswa-siswi kelas X SMA Negeri 1 Kupang. Teknik pengumpulan data yang digunakan dalam penelitian ini adalah menggunakan instrumen tes tertulis berbentuk pilihan ganda yang berjumlah 10 butir soal dan dokumentasi. Metode penelitian ini menggunakan penelitian kuantitatif dengan data penelitian adalah data kuantitatif dan data kualitatif. Subjek penelitian ini adalah siswa-siswi SMA kelas X dan kelas XII SMA Negeri 1 Kupang. Metode pengambilan data meliputi tes dan dokumentasi hasil kerja siswa. Four-tier diagnostic test adalah tes yang terdiri atas 4 tingkatan, yaitu soal dengan pilihan jawaban, pilihan tingkat keyakinan jawaban, pilihan alasan dan pilihan tingkat keyakinan alasan. Hasil penelitian mununjukan bahwa kategori miskonsepsi pada materi usaha dan energy oleh siswa SMA Negeri 1 Kupang masuk dalam kategori sedang.
Kata kunci: Miskonsepsi usaha dan energi
Etude du rendement de l’éleusine (Eleusina coracana (l.) Gaertn 1788) dans les conditions agro-écologiques de Kinshasa
Authors:   Université Pédagogique Nationale, KAMANDA Vincent de Paul , KITAMBALA VANGEHANIA Martin ,   Université Pédagogique Nationale
Published: July 2023

Le comportement de l’Eleusina coracana (L.) Gaertn 1788 a été évalué à Kinshasa du 23 mai au 10 septembre 2019 suivant un dispositif en split-plot. Pour ce faire, les facteurs suivants ont été étudiés : la densité de plantation (40cm x40cm ; 20cm x40 cm ; 30cm x 40 cm) et les doses croissantes d’engrais NPK (dose nulle, 200g/parcelle et 300g/parcelle). A l’issue de cette étude, les résultats suivants ont été obtenus : la variation des densités et des doses d’engrais n’a eu aucune influence sur le nombre des panicules par plant, le nombre des talles par plant et la durée semis-floraison. La meilleure densité et la meilleure dose d’engrais NPK pour la levée est de 40cm x 40 cm (62500/ha) et 300g de NPK. Le rendement le plus élevé a été de 221,8kg/ha et a été obtenu avec les écartements de 40cm x 40 cm avec 300g de NPK. Mots-clés : densité, engrais, éleusine, Kinshasa
Décentralisation centralisée et son impact sur le développement de la ville de Bandundu
Authors:   Université de Bandundu, MULOPO GIHANI GHICHARD 
Published: July 2023

Le développement d’un pays passe par la réorganisation de la forme de son territoire et de son administration au niveau des institutions de base. Echelonnant dans le temps et dans l’espace, nos recherches se sont focalisées de la période allant de 2006 jusqu’à 2019 dans la ville de Bandundu. Pour aboutir aux résultats, l’interprétation des textes des lois en la matière est notre principale source d’inspiration, ainsi que des différents rapports des experts, ouvrages et doctrines ayant trait au cas sous examen. Les entités territoriales décentralisées (ETD) devront promouvoir l’activité économique au moyen des ressources qu’elles détiennent pour accroitre leur assiette fiscale sur le droit d’accise et les impôts, les taxes routière de circulation, les taxes sur les marchés urbains, et des activités de rentabilité en dehors des taxes telles que le transport urbain des personnes, le transport de matériel de construction, l’exploitation de sable et gravier de la rivière, l’exploitation forestière, les activités agricoles et maraichères, la pêche et l’élevage, afin de ne pas compter sur les recettes à caractère national qui sont dans plusieurs cas inopérantes. L’impulsion du développement doit repenser la réorganisation de la sphère politique interne, en passant par le dialogue permanent, la cohésion des structures des bases, l’intégration des différentes tribus et la décentralisation de l’esprit dans le chef de hautes personnalités politiques de la ville. Mots clés : Développement, décentralisation, entité
Machine Vision Based on an Ultra‐Wide Bandgap 2D Semiconductor AsSbO3
Authors: Long Haoran , Liu Hao , Wang Xiaoyu , Wang Bowen , Bai Ruixue , Yu Yali , Xin Kaiyao , Liu Liyuan , Xu Yingqiang , Zhang Jing , Jiang Fagang , Wang Xinghua , Wei Zhongming , Yang Juehan 
Published: July 2023

AbstractFacing the future development trend of miniaturization and intelligence of electronic devices, solar‐blind photodetectors based on ultrawide‐bandgap 2D semiconductors have the advantages of low dark current, and high signal‐to‐noise ratio, as well as the features of micro‐nanometer miniaturization and multi‐functionalization of 2D material devices, which have potential applications in the photoelectric sensor part of high‐performance machine vision systems. This study reports a 2D oxide semiconductor, AsSbO3, with an ultrawide bandgap (4.997 eV for monolayer and 4.4 eV for multilayer) to be used to fabricate highly selective solar‐blind UV photodetectors, of which the dark current as low as 100 fA and rejection ratio of UV‐C and UV‐A reaches 7.6 × 103. Under 239 nm incident light, the responsivity is 105 mA W−1 and the detectivity is 7.58 × 1012 Jones. Owing to the remarkable anisotropic crystal structure, AsSbO3 also shows significant linear dichroism and nonlinear optical properties. Finally, a simple machine vision system is simulated by combining the real‐time imaging function in solar‐blind UV with a convolutional neural network. This study enriches the material system of ultrawide‐bandgap 2D semiconductors and provides insight into the future development of high‐performance solar‐blind UV optoelectronic devices.
Embedding Living Cells with a Mechanically Reinforced and Functionally Programmable Hydrogel Fiber Platform
Authors: Peng Ruoxuan , Ba Fang , Li Jie , Cao Jiayi , Zhang Rong , Liu Wan‐Qiu , Ren Jing , Liu Yifan , Li Jian , Ling Shengjie 
Published: July 2023

AbstractLiving materials represent a new frontier in functional material design, integrating synthetic biology tools to endow materials with programmable, dynamic, and life‐like characteristics. However, a major challenge in creating living materials is balancing the tradeoff between structural stability, mechanical performance, and functional programmability. To address this challenge, a sheath–core living hydrogel fiber platform that synergistically integrates living bacteria with hydrogel fibers to achieve both functional diversity and structural and mechanical robustness is proposed. In the design, microfluidic spinning is used to produce hydrogel fiber, which offers advantages in both structural and functional designability due to their hierarchical porous architectures that can be tailored and their mechanical performance that can be enhanced through a variety of post‐processing approaches. By introducing living bacteria, the platform is endowed with programmable functionality and life‐like capabilities. This work reconstructs the genetic circuits of living bacteria to express chromoproteins and fluorescent proteins as two prototypes that enable the coloration of living fibers and sensing water pollutants by monitoring the amount of fluorescent protein expressed. Altogether, this study establishes a structure–property–function optimized living hydrogel fiber platform, providing a new tool for accelerating the practical applications of the emerging living material systems.
Exceeding 100 µs Charge Carrier Separation in Perovskite Mediated by Rhodamine 6G
Authors: Maity Partha , Naphade Rounak , Gutiérrez‐Arzaluz Luis , Nematulloev Sarvarkhodzha , Thomas Simil , Mir Wasim J. , Yorov Khursand E. , Alshareef Husam N. , Bakr Osman M. , Mohammed Omar F. 
Published: July 2023

AbstractHalide perovskite colloidal nanocrystals (NCs) have enabled considerable progress in light conversion applications. However, the presence of unavoidable defect states and phase transition effects can accelerate undesirable rapid charge recombination of the photogenerated charge carriers. To address this issue, chromophores with an anchoring moiety are often used to modify the surface of the NCs, promoting prolonged charge separation through electron or energy transfer processes for optoelectronic applications. Here, steady‐state and time‐resolved spectroscopy methods are combined with density functional theory (DFT) calculations to explore and decipher the excited‐state interaction in colloidal CsPbX3 (X = Br, I) NCs with a rhodamine 6G (Rh6G) hybrid assembly. The results show that Rh6G dimerizes even at low concentrations, as evidenced by DFT calculations. The binding of Rh6G on the NC surface is confirmed by FTIR and NMR spectroscopy techniques. In addition, transient absorption spectroscopy reveals directional sub‐ps electron transfer from Rh6G to CsPbI3 NCs, whereas energy transfer occurs from CsPbBr3 to Rh6G, which ultimately recombines in the µs time regime. The findings highlight the simplest and most practical approaches for studying and tailoring the excited‐state interaction in colloidal perovskite NCs and chromophore assembly.
Synthesis of 4H‐Indazol‐4‐ones and Fused Pyrazoles via Copper‐Catalyzed Annulation of Hydrazones with Cyclic Enones
Authors: Nayak Kalinga H. , Bhaskaran Rasmi P. , Shamnad Ali , Babu Beneesh P. 
Published: July 2023

AbstractHerein, we report the synthesis of cyclic ketone‐fused pyrazoles via [3+2] annulation reaction between hydrazones and cyclic enones (five‐, six‐ and seven‐membered) catalyzed by Cu(II) under aerobic conditions. These compounds were further functionalized by reactions such as Suzuki‐Miyaura cross‐coupling, Heck coupling, and Aldol reaction to afford diverse molecular scaffolds in good yield, selectivity and functional group tolerance.
Artificial intelligence for dementia—Applied models and digital health
Authors: Lyall Donald M. , Kormilitzin Andrey , Lancaster Claire , Sousa Jose , Petermann‐Rocha Fanny , Buckley Christopher , Harshfield Eric L. , Iveson Matthew H. , Madan Christopher R. , McArdle Ríona , Newby Danielle , Orgeta Vasiliki , Tang Eugene , Tamburin Stefano , Thakur Lokendra S. , Lourida Ilianna ,   The Deep Dementia Phenotyping (DEMON) Network, Llewellyn David J. , Ranson Janice M. 
Published: July 2023

AbstractINTRODUCTIONThe use of applied modeling in dementia risk prediction, diagnosis, and prognostics will have substantial public health benefits, particularly as “deep phenotyping” cohorts with multi‐omics health data become available.METHODSThis narrative review synthesizes understanding of applied models and digital health technologies, in terms of dementia risk prediction, diagnostic discrimination, prognosis, and progression. Machine learning approaches show evidence of improved predictive power compared to standard clinical risk scores in predicting dementia, and the potential to decompose large numbers of variables into relatively few critical predictors.RESULTSThis review focuses on key areas of emerging promise including: emphasis on easier, more transparent data sharing and cohort access; integration of high‐throughput biomarker and electronic health record data into modeling; and progressing beyond the primary prediction of dementia to secondary outcomes, for example, treatment response and physical health.DISCUSSIONSuch approaches will benefit also from improvements in remote data measurement, whether cognitive (e.g., online), or naturalistic (e.g., watch‐based accelerometry).
Treatment Effect on Brain Atrophy Correlates with Treatment Effect on Cognition in Multiple Sclerosis
Authors: Sormani Maria Pia , Schiavetti Irene , Ponzano Marta , Colato Elisa , De Stefano Nicola 
Published: July 2023

ObjectiveThe purpose of this study was to evaluate the extent to which treatment effect on magnetic resonance imaging (MRI)‐derived measures of brain atrophy and focal lesions can mediate, at the trial level, the treatment effect on cognitive outcomes in multiple sclerosis (MS).MethodsWe collected all published randomized clinical trials in MS lasting at least 2 years and including as end points: active MRI lesions (defined as new/enlarging T2 lesions), brain atrophy (defined as a change in brain volume between month 12 and month 24), and change in cognitive performance (assessed by the Paced Auditory Serial Addition Test [PASAT]). Relative reductions were used to quantify the treatment effect on MRI markers (lesions and atrophy), whereas the standardized mean difference (Hedges g) between baseline and follow‐up cognitive assessment was used to quantify the treatment effects on cognition. A linear regression, weighted for trial size, was used to assess the relationship between the treatment effects on MRI markers and cognition.ResultsFourteen trials including more than 8,813 patients with MS were included in the meta‐regression. Treatment effect on cognition was strongly associated with the treatment effect on brain atrophy (R2 = 0.79, p < 0.001), but was not correlated with the treatment effect on active MRI lesions (R2 = 0.16, p = 0.14).InterpretationResults reported here suggest that brain atrophy, a well‐established MRI marker in MS clinical trials, can be used as a main outcome for clinical trials with drugs targeting cognitive impairment and neurodegeneration. ANN NEUROL 2023;94:925–932
Manipulating Intermetallic Charge Transfer for Switchable External Stimulus‐Enhanced Water Oxidation Electrocatalysis
Authors: Chalil Oglou Ramadan , Ulusoy Ghobadi Turkan Gamze , Hegner Franziska Simone , Galán‐Mascarós José Ramón , López Núria , Ozbay Ekmel , Karadas Ferdi 
Published: July 2023

AbstractElectrocatalytic processes involving the oxygen evolution reaction (OER) present a kinetic bottleneck due to the existence of linear‐scaling relationships, which bind the energies of the different intermediates in the mechanism limiting optimization. Here, we offer a way to break these scaling relationships and enhance the electrocatalytic activity of a Co−Fe Prussian blue modified electrode in OER by applying external stimuli. Improvements of ≈11 % and ≈57 % were achieved under magnetic field (0.2 T) and light irradiation (100 mW cm−2), respectively, when working at fixed overpotential, η=0.6 V at pH 7. The observed enhancements strongly tie in with the intermetallic charge transfer (IMCT) intensity between Fe and Co sites. Density Functional Theory simulations suggest that tuning the IMCT can lead to a change of the OER mechanism to an external stimuli‐sensitive spin crossover‐based pathway, which opens the way for switchable electrocatalytic devices.
Trace metal optimization in CHO cell culture through statistical design of experiments
Authors: Polanco Ashli , Liang George , Park SoYoung , Wang Yongdan , Graham Ryan J. , Yoon Seongkyu 
Published: July 2023

AbstractA majority of the biotherapeutics industry today relies on the manufacturing of monoclonal antibodies from Chinese hamster ovary (CHO) cells, yet challenges remain with maintaining consistent product quality from high‐producing cell lines. Previous studies report the impact of individual trace metal supplemental on CHO cells, and thus, the combinatorial effects of these metals could be leveraged to improve bioprocesses further. A three‐level factorial experimental design was performed in fed‐batch shake flasks to evaluate the impact of time wise addition of individual or combined trace metals (zinc and copper) on CHO cell culture performance. Correlations among each factor (experimental parameters) and response variables (changes in cell culture performance) were examined based on their significance and goodness of fit to a partial least square's regression model. The model indicated that zinc concentration and time of addition counter‐influence peak viable cell density and antibody production. Meanwhile, early copper supplementation influenced late‐stage ROS activity in a dose‐dependent manner likely by alleviating cellular oxidative stress. Regression coefficients indicated that combined metal addition had less significant impact on titer and specific productivity compared to zinc addition alone, although titer increased the most under combined metal addition. Glycan analysis showed that combined metal addition reduced galactosylation to a greater extent than single metals when supplemented during the early growth phase. A validation experiment was performed to confirm the validity of the regression model by testing an optimized setpoint of metal supplement time and concentration to improve protein productivity.
Impact of the COVID‐19 pandemic on paediatric renal tumour presentation and management, a SIOP renal tumour study group study
Authors: Roy Prakriti , van Peer Sophie E. , Dandis Rana , Duncan Catriona , de Aguirre‐Neto Joaquim Caetano , Verschuur Arnauld , de Camargo Beatriz , Karim‐Kos Henrike E. , Boschetti Luna , Spreafico Filippo , Ramirez‐Villar Gema L. , Graf Norbert , van Tinteren Harm , Pritchard‐Jones Kathy , van den Heuvel‐Eibrink Marry M. 
Published: July 2023

AbstractBackgroundThe COVID‐19 pandemic had global catastrophic effects on the management of non‐communicable diseases including paediatric cancers. Restrictions during the start of 2020 complicated timely referrals of patients to specialized centres. We aimed to evaluate the pandemic’s impact on the number of new diagnoses, disease characteristics and management delay for paediatric renal tumour patients included in the SIOP‐RTSG‐UMBRELLA study, as compared with data from a historical SIOP‐RTSG trial (2005–2009).MethodsThe number of intensive care admissions, population mobility rates and national lockdown periods/restrictions were used as proxies of the pandemic’s severity and impact on societies. Clinical and tumour data were extracted from the SIOP‐RTSG‐UMBRELLA study and from historical SIOP‐RTSG trials.ResultsDuring the first lockdown in Europe, the number of newly diagnosed patients decreased following restrictions and population immobilisation. Additionally, there was a higher proportion of advanced disease (37% vs. 17% before and after COVID‐9, p < 0.001) and larger median tumour volume (559 cm3 vs. 328 and 434 cm3 before and after, p < 0.0001). Also in Brazil, the proportion of advanced disease was higher during the national decrease in mobilisation and start of restrictions (50% and 24% vs. 11% and 18% before and after, p < 0.01). Tumour volume in Brazil was also higher during the first months of COVID‐19 (599 cm3 vs. 459 and 514 cm3), although not significant (p = 0.17). We did not observe any delays in referral time nor in time to start treatment, even though COVID‐19 restrictions may have caused children to reach care later.ConclusionThe COVID‐19 pandemic briefly changed the tumour characteristics of children presenting with renal tumours. The longer‐term impact on clinical outcomes will be kept under review.
First‐Principles Microkinetic Study of the Catalytic Hydrodeoxygenation of Guaiacol on Transition Metal Surfaces
Authors: Morteo‐Flores Fabian , Quayle Max , Salom‐Català Antoni , Pera‐Titus Marc , Roldan Alberto 
Published: July 2023

AbstractThe mechanism behind the hydrodeoxygenation (HDO) of guaiacol on Co(0001), Ni(111), Cu(111), Pd(111), and Pt(111) was investigated by constructing a first‐principles microkinetic model from density functional theory (DFT) models for 68 possible intermediates over each surface. We report that the most energetically favorable pathway for this process is the demethylation of guaiacol to catechol over Ni(111), which exhibits highly desirable deoxygenation and hydrogenation kinetics at industrial temperatures. Guaiacol readily undergoes hydrogenation over Pt(111) and Pd(111), but the products exhibit slow desorption from the surfaces at standard operation temperatures. Furthermore, the deoxygenation pathway is hindered by the high energy barrier associated with the scission of the Calkyl−O bond.
Special Collection: Photocatalytic Synthesis
Authors: Næsborg Line , Pieber Bartholomäus , Wenger Oliver S. 
Published: July 2023

AbstractThis Special Collection is dedicated to the field of photocatalytic synthesis and contains a diverse selection of original research contributions. It includes studies on catalyst development, mechanistic investigations, method development and the use of enabling technologies, illustrating the many facets of state‐of‐the‐art research in photocatalytic synthesis. Further, emerging topics are surveyed and discussed in three reviews and a concept article.
Estimation of Lysozyme Concentration on a Membrane Surface Using a Membrane Crystallization Method
Authors: Ueda Saya , Hirasawa Izumi , Kohori Fukashi 
Published: July 2023

AbstractHigh‐quality single crystals are necessary for structural analysis of proteins. However, it is difficult to obtain high‐quality single crystals in a short time. Therefore, a membrane crystallization method was applied in which lysozyme is concentrated on the membrane surface using an ultrafiltration membrane. Membrane surface concentrations, which cannot be measured, were calculated based on the measurable permeation flux. At all operating pressures, the measured and simulated permeation fluxes were in close agreement, allowing the membrane surface concentration to be estimated. The membrane surface concentration increased rapidly at all pressures during the initial pressurization, indicating that crystals were formed at an early stage.
Evolution of the porous structure for phosphoric acid etching carbon as cathodes in Li–O2 batteries: Pyrolysis temperature‐induced characteristics changes
Authors: Yang Feiyang , Yao Ying , Xu Yunkai , Wang Cong , Wang Meiling , Ren Jingjie , Zhang Cunzhong , Wu Feng , Lu Jun 
Published: July 2023

AbstractAlthough biomass‐derived carbon (biochar) has been widely used in the energy field, the relation between the carbonization condition and the physical/chemical property of the product remains elusive. Here, we revealed the carbonization condition's effect on the morphology, surface property, and electrochemical performance of the obtained carbon. An open slit pore structure with shower‐puff‐like nanoparticles can be obtained by finely tuning the carbonization temperature, and its unique pore structure and surface properties enable the Li–O2 battery with cycling longevity (221 cycles with 99.8% Coulombic efficiency at 0.2 mA cm−2 and controlled discharge–charge depths of 500 mAh g−1) and high capacity (16,334 mAh g−1 at 0.02 mA cm−2). This work provides a greater understanding of the mechanism of the biochar carbonization procedure under various pyrolysis conditions, paving the way for future study of energy storage devices.
Reconsidering the Structures of C2Al4− and C2Al5−
Authors: Zhang Chao‐Jiang , Ortíz‐Chi Filiberto , Xu Xi‐Ling , Xu Hong‐Guang , Merino Gabriel , Zheng Wei‐Jun 
Published: July 2023

AbstractThe study of C2Al4−/0 and C2Al5−/0 was conducted using anion photoelectron spectroscopy and quantum chemical computations. The present findings reveal that C2Al4− has a boat‐like structure, with a single C2 unit surrounded by four aluminum atoms. In contrast, the neutral C2Al4 species adopts a D2h planar structure with two planar tetracoordinate carbon (ptC) units, consistent with previous reports. Furthermore, the global minimum isomer of C2Al5− adopts a D3h symmetry, where the C2 unit interacts with five aluminum atoms. It was also found that a lower symmetry structure of C2Al5−, where all five aluminum atoms are located on the same side of the C2 unit, albeit slightly higher in energy compared to the D3h structure. These computations show that the D3h structure of C2Al5− is highly stable, exhibiting a large HOMO‐LUMO gap.