bluuebunny/crossref_metadata_2025_split huggingface dataset:
Research on New Al-Ag-Mo Alloys Dedicated to Wire Applications in Overhead Power Lines
Authors: Grzebinoga Justyna , Mamala Andrzej , Ściężor Wojciech , Kowal Radosław 
Published: June 2023

The latest research work in the field of electric power systems focuses on the development of new wire materials which will allow the increase of the transmission capacity of power lines currently in use. The reason for this research was the often limited possibilities of continuous and failure-free transmission of electricity. In this paper, the authors present research on a new aluminium-based alloy dedicated for use as a conductive braid in the HTLS cable group. There are many technical solutions for this group of cables on the market, although they are solutions with a number of disadvantages, ranging from their high price, various operational shortcomings, complicated installation techniques, and ending with the risk of monopolistic practices, which is related to the inability to attract several competitive suppliers. The main aim of the research was to develop a new alloy based on aluminium with the addition of silver and molybdenum dedicated for use in special overhead power cables. Experimental research on new materials focused on obtaining the necessary knowledge to produce an overhead wire from these alloys with higher current carrying capacity in relation to the currently used conventional wire materials based on aluminium.
Using of Somatic Embryogenesis for Improving Bolting-resistant New Local Cultivars of Heirloom Carrot Cultivars (Daucus carota) Under Egyptian Conditions
Authors: Hamed Hamed H. , Mohamed M. Khalil 
Published: June 2023

Foreign carrot varieties with desirable morphological traits for the local and global markets must bloom in low temperatures for a long period of time in Egypt, but these climatic conditions are not available for flowering and seed production for these varieties, so it is common to import carrot seeds from abroad. On the other hand, Local cultivars bloom earlier when planted later than the advised date. Due to the heat, it cannot be grown throughout the summer. Pushing the somatic cells to divide and create a new polarity is necessary for the induction of tissues in the lab and the creation of somatic embryos. It was shown that several auxins play a crucial role in the development of these embryos, particularly 2, 4-D (2,4-dichlorophenoxyacetic acid). This experiment was carried out to investigate the effect of five procedures in a tissue culture laboratory using two concentrations of 2, 4-D at a concentration of 2.5 and 5 mg/l for indirect somatic embryos induction from sexual embryos produced from culturing carrot (Daucus carota) seeds of Carrot cv. Kuroda (an heirloom variety). The results confirmed by scanning electron microscopy showed that it is crucial to compare the various processes used to create somatic Embryogenesis to assess their effectiveness. The four stages of somatic embryos, globular, heart, torpedo, and cotyledon form, were observed on the formed callus. The highest amounts of callus fresh weight, the number of globular-shaped stage embryos, the number of heart-shaped stage embryos, the number of torpedo-shaped stage embryos, the number of cotyledon-shaped stage embryos, and the number of seedlings had been recorded in the media supplemented with 2, 4-D at a concentration of 5 mg. This study was able to produce somatic embryos of the foreign carrot cv. Kuroda, Plants obtained from somatic embryos are included in selection programs to produce varieties resistant to early flowering under Egyptian conditions. These results constitute a step in the way in the field of improving bolting-resistant new local cultivars of heirloom carrot cultivars (Daucus carota) under Egyptian conditions.
Response of Flavonoids Production to Some Elicitors in Callus and Cell Suspension Culture of Ginkgo (Ginkgo biloba L.)
Authors: Sherif S. S. , Essam M. A. , Hassan Reem H. I. 
Published: June 2023

Aims: This study was conducted to investigate how to maximize the production of flavonoids from ginkgo leaves callus or cell suspension cultures.
Study Design: The experiment was implemented in a completely randomized design with 3 replicates.
Place and Duration of Study: The study was carried out at the Research Laboratory of Tissue Culture and Preservation of Germplasm, Horticulture Research Institute, Agric. Res. Center, Egypt from 2020 to 2022.
Methodology: Adenine sulfate and pyruvic acid were added at concentrations of 0.1, 0.2, and 0.3 mg/l, for each. Cadmium and lead acetate were added (2 and 4 mg/l for each) to the cell suspension. Jasmonic acid (15, 50, and 100 µM), AgNO3 (25, 50, and 75 µM) and tryptophan (50, 100, and 200 mg/l) were used in the hard callus culture.
Results: Results indicated that the maximum cell suspension fresh weight (6.50 g) was obtained from (0.5 g) cell suspension grown on MS medium supplemented with adenine 0.2 mg/l while lead acetate at 2.0 mg/l increased dry weight (0.89g) after the second subculture. The maximum packed cell volume (PCV) (24.33%) was obtained from lead acetate at 2.0 mg/l in the second cycle of growth. The best flavonoid production (91.29 mg/100 g DW) was produced in the second cycle of growth from callus treated with AgNO3 at 25 µM. Treating Ginkgo biloba callus cultured with jasmonic acid at 100 µM increased the inhibition of AChE in the serum of AD patients from 235.2 U/l (untreated serum) to 76.08 U/l at 38.71 ug/ml compared with the Ginkgo biloba ® at 260 mg which inhibit the activity from 235.2 U/l to 55.73 U/l at 26.00 ug/ml at amount 25.00 ul for all.
Conclusion: Ginkgo biloba is a valuable source of anticholinesterase agents and could be used in pharmaceutical preparations by using callus culture technique treated with jasmonic acid and AgNO3.
Recent Advances in Kaolinite Nanoclay as Drug Carrier for Bioapplications: A Review
Authors: Wu Qianwen , Liao Juan , Yang Huaming 
Published: June 2023

AbstractAdvanced functional two‐dimensional (2D) nanomaterials offer unique advantages in drug delivery systems for disease treatment. Kaolinite (Kaol), a nanoclay mineral, is a natural 2D nanomaterial because of its layered silicate structure with nanoscale layer spacing. Recently, Kaol nanoclay is used as a carrier for controlled drug release and improved drug dissolution owing to its advantageous properties such as surface charge, strong biocompatibility, and naturally layered structure, making it an essential development direction for nanoclay‐based drug carriers. This review outlines the main physicochemical characteristics of Kaol and the modification methods used for its application in biomedicine. The safety and biocompatibility of Kaol are addressed, and details of the application of Kaol as a drug delivery nanomaterial in antibacterial, anti‐inflammatory, and anticancer treatment are discussed. Furthermore, the challenges and prospects of Kaol‐based drug delivery nanomaterials in biomedicine are discussed. This review recommends directions for the further development of Kaol nanocarriers by improving their physicochemical properties and expanding the bioapplication range of Kaol.
Preparation of Structure Vacancy Defect Modified Diatomic‐Layered g‐C3N4 Nanosheet with Enhanced Photocatalytic Performance
Authors: Liu Tian , Zhu Wei , Wang Ning , Zhang Keyu , Wen Xue , Xing Yan , Li Yunfeng 
Published: June 2023

AbstractStructure self‐modification of graphitic carbon nitride (g‐C3N4) without the assistance of other species has attracted considerable attention. In this study, the structure vacancy defect modified diatomic‐layered g‐C3N4 nanosheet (VCN) is synthesized by thermal treatment of bulk g‐C3N4 in a quartz tube with vacuum atmosphere that will generate a pressure‐thermal dual driving force to boost the exfoliation and formation of structure vacancy for g‐C3N4. The as‐prepared VCN possesses a large specific surface area with a rich pore structure to provide more active centers for catalytic reactions. Furthermore, the as‐formed special defect level in VCN sample can generate a higher exciton density at photoexcitation stage. Meanwhile, the photogenerated charges will rapidly transfer to VCN surface due to the greatly shortened transfer path resulting from the ultrathin structure (≈1.5 nm), which corresponds to two graphite carbon nitride atomic layers. In addition, the defect level alleviates the drawback of enlarged bandgap caused by the quantum size effect of nano‐scaled g‐C3N4, resulting in a well visible‐light utilization. As a result, the VCN sample exhibits an excellent photocatalytic performance both in hydrogen production and photodegradation of typical antibiotics.
ZrNb(CO) RF Superconducting Thin Film with High Critical Temperature in the Theoretical Limit
Authors: Sun Zeming , Oseroff Thomas , Baraissov Zhaslan , Dare Darrah K. , Howard Katrina , Francis Benjamin , Hire Ajinkya C. , Sitaraman Nathan , Arias Tomas A. , Transtrum Mark K. , Hennig Richard , Thompson Michael O. , Muller David A. , Liepe Matthias U. 
Published: June 2023

AbstractSuperconducting radio‐frequency (SRF) resonators are critical components for particle accelerator applications, such as free‐electron lasers, and for emerging technologies in quantum computing. Developing advanced materials and their deposition processes to produce RF superconductors that yield nΩ surface resistances is a key metric for the wider adoption of SRF technology. Here, ZrNb(CO) RF superconducting films with high critical temperatures (Tc) achieved for the first time under ambient pressure are reported. The attainment of a Tc near the theoretical limit for this material without applied pressure is promising for its use in practical applications. A range of Tc, likely arising from Zr doping variation, may allow a tunable superconducting coherence length that lowers the sensitivity to material defects when an ultra‐low surface resistance is required. The ZrNb(CO) films are synthesized using a low‐temperature (100 – 200 °C) electrochemical recipe combined with thermal annealing. The phase transformation as a function of annealing temperature and time is optimized by the evaporated Zr‐Nb diffusion couples. Through phase control, one avoids hexagonal Zr phases that are equilibrium‐stable but degrade Tc. X‐ray and electron diffraction combined with photoelectron spectroscopy reveal a system containing cubic β‐ZrNb mixed with rocksalt NbC and low‐dielectric‐loss ZrO2. Proof‐of‐concept RF performance of ZrNb(CO) on an SRF sample test system is demonstrated. BCS resistance trends lower than reference Nb, while quench fields occur at approximately 35 mT. The results demonstrate the potential of ZrNb(CO) thin films for particle accelerators and other SRF applications.
Cross‐category revenue spillover in brand extensions: The role of within‐category experience
Authors: Cho Jihoon , Walker Doug , Nowlin Edward L. 
Published: June 2023

AbstractBuilding on signaling theory, the current research proposes an empirical framework to help firms understand the degree to which cross‐category purchases affect the revenue generated for each category and how within‐category purchases influence the cross‐category spillover effects. The framework is applied to novel individual‐level, cross‐sectional, and time‐series transaction details from a leading lifestyle conglomerate in the Middle East. The empirical results provide strong support for the presence of revenue spillover across multiple categories of brand extensions, with the spillover being more pronounced in categories in which customers have infrequently purchased and thus had less within‐category experience. These results add to the ongoing stream of research on brand extensions by offering evidence that both within‐ and cross‐category learning play a significant role in revenue generation from brand extensions for multi‐product or service firms.
Materials for Electrochemiluminescence: TADF, Hydrogen‐Bonding, and Aggregation‐ and Crystallization‐Induced Emission Luminophores
Authors: Chu Kenneth , Ding Zhifeng , Zysman‐Colman Eli 
Published: June 2023

AbstractElectrochemiluminescence (ECL) is a rapidly growing discipline with many analytical applications from immunoassays to single‐molecule detection. At the forefront of ECL research is materials chemistry, which looks at engineering new materials and compounds exhibiting enhanced ECL efficiencies compared to conventional fluorescent materials. In this review, we summarize recent molecular design strategies that lead to high efficiency ECL. In particular, we feature recent advances in the use of thermally activated delayed fluorescence (TADF) emitters to produce enhanced electrochemiluminescence. We also document how hydrogen bonding, aggregation, and crystallization can each be recruited in the design of materials showing enhanced electrochemiluminescence.
Soil‐dependent β and γ shape parameters of the Haverkamp infiltration model for 3D infiltration flow
Authors: Yilmaz D. , Lassabatere L. , Moret‐Fernandez D. , Rahmati M. , Angulo‐Jaramillo R. , Latorre B. 
Published: June 2023

AbstractEstimating of soil sorptivity () and saturated hydraulic conductivity () parameters by field infiltration tests are widespread due to the ease of the experimental protocol and data treatment. The analytical equation proposed by Haverkamp et al. (1994) allows the modelling of the cumulative infiltration process, from which the hydraulic parameters can be estimated. This model depends on both initial and final values of the soil hydraulic conductivity, initial soil sorptivity, the volumetric water content increase () and two infiltration constants, the so‐called and parameters. However, to reduce the number of unknown variables when inverting experimental data, constant parameters such as and are usually prefixed to 0.6 and 0.75, respectively. In this study, the values of these constants are investigated using numerical infiltration curves for different soil types and initial soil water contents for the van Genuchten‐Mualem (vGM) soil hydraulic model. Our new approach considers the long‐time expansions of the Haverkamp model, the exact soil properties such as , and initial soil moisture to derive the value of the and parameters for each specific case. We then generated numerically cumulative infiltration curves using Hydrus‐3D software and fitted the long‐time expansions to derive the value of the and parameters. The results show that these parameters are influenced by the initial soil water content and the soil type. However, for initially dry soil conditions, some prefixed values can be proposed instead of the currently used values. If an accurate estimate of and is the case, then for coarse‐textured soils such as sand and loamy sand, we propose the use of 0.9 for both constants. For the remaining soils, the value of 0.75 can be retained for . For constant, 0.75 and 1.5 values can be considered for, intermediate permeable soils (sandy loam and loam) and low permeable soils (silty loam and silt), respectively. We clarify that the results are based on using the vGM model to describe the hydraulic functions of the soil and that the results may differ, and the assumptions may change for other models.
CAT on MOUSE: Control and automation of temperature for single‐sided NMR instruments such as NMR‐MOUSE
Authors: Mailhiot Sarah , Mankinen Otto , Li Jing , Kharbanda Yashu , Telkki Ville‐Veikko , Urbańczyk Mateusz 
Published: June 2023

AbstractTemperature‐dependent experiments are a rapidly growing area of interest for low‐field NMR. In this work, we present a new device for wide‐range temperature control for single‐sided NMR instruments. The presented device, called CAT, is simple to build, inexpensive, and easy to modify to accommodate different samples. We present the capabilities of the device using a freezing temperature study of acetic acid/water mixtures. Additionally, we present the stability of the device over long measurement times. We believe that by introducing such a device with an open‐source design, we allow researchers to use it in a wide range of applications and to fully incorporate variable‐temperature studies in the world of single‐sided instruments.
Polyglycine Modified Glassy Carbon Electrode for Ibuprofen Determination
Authors: Matijašević Igor , Kulizić Mihajlo , Bacetić Ljubica , Gavrilović Damjan , Baošić Rada , Lolić Aleksandar 
Published: June 2023

AbstractA simple modification of bare glassy carbon electrode by electropolymerization of glycine by cyclic voltammetry was applied to the detection of ibuprofen. The polyglycine modified glassy carbon electrode was characterized by cyclic voltammetry and the electroactive surface area was determined. The study of ibuprofen in acetic acid buffer (0.25 M, pH 4.0) presented an electrocatalytic effect toward ibuprofen oxidation, increasing the current response and decrease of oxidation potential, at the modified electrode compared to the bare. Under the optimal conditions, the modified electrode gave a linear response in the ibuprofen concentration range of 10 to 200 μM, obtained correlation coefficient was 0.9993. the calculated limit of detection (3Sb/m) was 1.0 μM and the limit of quantification (10Sb/m) was 3.5 μM. the sensor was successfully used for the determination of ibuprofen in pharmaceutical preparations with satisfactory recoveries, 93–107 %. The new sensor showed good selectivity, repeatability, and reproducibility with satisfactory stability.
Supersymmetric phases of AdS4/CFT3
Authors: Genolini Pietro Benetti , Cabo-Bizet Alejandro , Murthy Sameer 
Published: June 2023

Abstract
We exhibit an infinite family of supersymmetric phases in the three-dimensional ABJM superconformal field theory and the dual asymptotically AdS4 gravity. They are interpreted as partially deconfined phases which generalize the confined/pure AdS phase and deconfined/supersymmetric black hole phase. Our analysis involves finding a family of saddle-points of the superconformal index labelled by rational points (equivalently, roots of unity), separately in the bulk and boundary theories. In the ABJM theory we calculate the free energy of each saddle by the large-N asymptotic expansion of the superconformal index to all orders in perturbation theory near the saddle-point. We find that this expansion terminates at finite order. In the gravitational theory we show that there is a corresponding family of solutions, constructed by orbifolding the eleven-dimensional uplift of the supersymmetric black hole. The on-shell gravitational action of each orbifold agrees with the free energy of the corresponding saddle in the SCFT. We find that there are two saddles in the ABJM theory with the same entropy as the supersymmetric black hole, corresponding to the two primitive fourth-roots of unity, which causes macroscopic oscillations in the microcanonical index.
Intersection numbers from higher-order partial differential equations
Authors: Chestnov Vsevolod , Frellesvig Hjalte , Gasparotto Federico , Mandal Manoj K. , Mastrolia Pierpaolo 
Published: June 2023

AbstractWe propose a new method for the evaluation of intersection numbers for twisted meromorphicn-forms, through Stokes’ theorem inndimensions. It is based on the solution of ann-th order partial differential equation and on the evaluation of multivariate residues. We also present an algebraic expression for the contribution from each multivariate residue. We illustrate our approach with a number of simple examples from mathematics and physics.
A proposal for 3d quantum gravity and its bulk factorization
Authors: Mertens Thomas G. , Simón Joan , Wong Gabriel 
Published: June 2023

Abstract
Recent progress in AdS/CFT has provided a good understanding of how the bulk spacetime is encoded in the entanglement structure of the boundary CFT. However, little is known about how spacetime emerges directly from the bulk quantum theory. We address this question in an effective 3d quantum theory of pure gravity, which describes the high temperature regime of a holographic CFT. This theory can be viewed as a q-deformation and dimensional uplift of JT gravity. Using this model, we show that the Bekenstein-Hawking entropy of a two-sided black hole equals the bulk entanglement entropy of gravitational edge modes. In the conventional Chern-Simons description, these black holes correspond to Wilson lines in representations of PSL(2, ℝ) ⨂ PSL(2, ℝ). We show that the correct calculation of gravitational entropy suggests we should interpret the bulk theory as an extended topological quantum field theory associated to the quantum semi-group $$ {\textrm{SL}}_q^{+}\left(2,\mathbb{R}\right)\bigotimes {\textrm{SL}}_q^{+}\left(2,\mathbb{R}\right) $$

SL
q
+

2
ℝ

⨂

SL
q
+

2
ℝ

. Our calculation suggests an effective description of bulk microstates in terms of collective, anyonic degrees of freedom whose entanglement leads to the emergence of the bulk spacetime.
3d defects in 5d: RG flows and defect F-maximization
Authors: Santilli Leonardo , Uhlemann Christoph F. 
Published: June 2023

Abstract
We use a combination of AdS/CFT and supersymmetric localization to study codimension-2 defects in 5d SCFTs and their gauge theory deformations. The 5d SCFTs are engineered by (p, q) 5-brane webs, with defects realized by D3-branes ending on the 5-brane webs. We obtain the defect free energies and find that gauge theory descriptions of the combined 5d/3d systems can be connected to the UV defect SCFTs through a form of F-maximization which extremizes over different gauge theory defects. This leads to a match between the defect free energies obtained from supersymmetric localization in the gauge theories on the one hand and string theory results on the other. We extend this match to defect RG flows.
1/3 BPS loops and defect CFTs in ABJM theory
Authors: Drukker Nadav , Kong Ziwen 
Published: June 2023

Abstract
We address a longstanding question of whether ABJM theory has Wilson loop operators preserving eight supercharges (so 1/3 BPS). We present such Wilson loops made of a large supermatrix combining two 1/2 BPS Wilson loops. We study the spectrum of operator insertions into them including the displacement operator and several others and study their correlation functions. Another natural construction arising in this context are Wilson loops with alternating superconnections. This amounts to including “defect changing operators” along the loop, similar to a discrete cusp. This insertion is topological and preserves two supercharges. We study the multiplet of this operator and how it can be used to introduce further operators. We also construct the defect conformal manifold arising from marginal defect operators.
Multiplication of distributions in a linear gain and loss system
Authors: Bagarello F. 
Published: June 2023

AbstractWe consider a model of coupled oscillators which can be seen as a gain and loss system. In the attempt to quantize the system, we propose a new definition of multiplication between distributions, and we check that this definition can be adopted when checking the biorthonormality of the eigenstates of the HamiltonianHof the system, and of its adjoint$$H^\dagger $$H†. In the analysis carried out here, the role ofweak pseudo-bosonicladder operators is relevant.