bluuebunny/crossref_metadata_2025_split huggingface dataset:
Exploiting Hydrogen Interaction of Drugs and Biodegradable Scaffolds Using Nanoparticles Loaded Nanofibers
Authors: Naderipour Tahereh , Lemraski Ensieh Ghasemian 
Published: March 2024

AbstractThis study presents a detailed investigation of the structural and surface modifications of Fe3O4 nanoparticles (NPs). Fourier Transform Infrared (FTIR) spectroscopy was utilized to analyze the distinct characteristic peaks of Fe3O4 NPs and their subsequent modifications with stearic acid (ST) layers. The FTIR analysis revealed characteristic peaks at 580 cm−1, and 441 cm−1, corresponding to the Fe‐O stretching vibrations of the bulk Fe3O4 NPs. The successful loading of stearic acid onto the Fe3O4 NPs was confirmed by the appearance of new peaks at 1413 cm−1 and 2908 cm−1, indicative of the asymmetric CH2 stretch and CH3 umbrella vibration modes of stearic acid. UV‐Vis spectroscopy further corroborated the efficient loading of tetracycline and ibuprofen onto Fe3O4/DST nanoparticles, as evidenced by changes in absorption spectra. N2 adsorption‐desorption isotherms illustrated the presence of micro and meso pores on the surface of Fe3O4 NPs, with alterations in pore volume and diameter post‐surface modification and drug loading. Evaluation of magnetic properties indicated a reduction in saturation magnetization after surface modification and drug loading, attributed to changes in homogeneity and surface moments. Differential Reflectance Spectroscopy (DRS) and Raman spectroscopy elucidated distinctive peaks and shifts in spectra, confirming the composition and structural changes in drug‐loaded nanofibers.
A Simple and Rapid Quinoline Schiff Base as a Fluorescent Probe for Zn2+ and Its Application in Test Strips
Authors: Dong Yuwei , Wang Yang , Song Yang , Yu Zhou , Yu Zhan , Zhao Zhen , Wang Liyan 
Published: March 2024

AbstractA simple fluorescent probe, (E)‐N‐(3‐methoxy‐4‐methylphenyl)‐1‐(quinolin‐2‐yl)methanimine (L), was synthesized via Schiff base condensation reaction between quinoline‐2‐carboxaldehyde and 3‐methoxy‐4‐methylaniline. L can be used as a ′turn‐on′ fluorescent probe for the selective and sensitive detection of Zn2+ ions in a CH3OH/HEPES medium. The detection limit was 1.04×10−7 M. Job plot analysis shows that the binding stoichiometry of L and Zn2+ is 1 : 1, further verified by the single crystal structure. The fluorescence‐enhanced response of L towards Zn2+ ions may be related to the chelation‐enhanced fluorescence (CHEF) supported by theoretical calculations. By adding EDTA, the reversibility of the probe binding to Zn2+ ions is demonstrated, enabling the construction of a functional molecular logic circuit. In addition, probe L was successfully incorporated into test strips for the quantitative detection of Zn2+.
Co–N–C/C Bifunctional Electrocatalyst for Dual Applications in Seawater Electrolysis and Catalyst in Hydrazine Fuel Cells
Authors: Behera Snehanjali , Chauhan Chetansinh , Mondal Biswajit 
Published: March 2024

AbstractThe convergence of water electrolysis and alkaline fuel cells offers captivating solutions for sustainably harvesting energy. The research explores both hydrazine‐assisted seawater electrolysis (hydrazine oxidation reaction (HzOR) and hydrogen production reaction (HER)), as well as alkaline hydrazine fuel cell reactions (HzOR and Oxygen reduction reaction (ORR)) by using a bifunctional cobalt polyaniline derived (Co PANI/C) catalyst. The catalyst shows excellent performance for hydrazine‐assisted seawater electrolysis in harsh seawater environments to produce H2 as fuel with nearly 85% Faradaic efficiency and during alkaline HzOR, the bifunctional catalyst generates H2 with 95% Faradaic efficiency by acting as both anode and cathode side catalyst. Also, the same catalyst requires only a potential of 0.34 V versus RHE and 0.906 V versus RHE for HzOR and ORR, respectively, in 1 m KOH, which makes this overall process useful for a Hz/O2 fuel cell.
Effects of Starch‐Lipid Complexes on Quality and Starch Digestibility of Wheat Noodles
Authors: Chao Chen , Liang Song , Sun Bowen , Zhang Yongyue , Yang Yuedong , Wang Shujun 
Published: March 2024

AbstractIn this study, starch‐lipid complexes with different crystalline forms (type I and type II) are prepared by twin‐screw extruder and their effects on quality and in vitro starch digestibility of wheat noodles are investigated. The substitution of wheat flour by type I and type II complexes increases and decreases the lightness of wheat noodles, respectively. The cooking loss of noodles increases with increasing addition of complexes, which is due to the destruction of gluten networks. Textural analysis shows that type I complexes, and to a lesser extent type II complexes, reduced the hardness and increased the elasticity of cooked noodles. Noodles made with type II complex are more resistant to amylolysis than those made with type I complexes, probably due to the less susceptibility of more crystalline type II complexes to amylolysis. From this study, it is concluded that starch‐lipid complex, as a new kind of clean‐label starch with promising functionality, can be used to improve the quality and nutrition of starchy foods.
Seismic fragility analysis of high‐strength concrete frame structures reinforced with high‐strength steel bars
Authors: Liu Juan , Zhang Jianwei , Zhao Zuozhou 
Published: March 2024

SummaryTo investigate the influence of using high‐strength steel bars in columns on the seismic resistance capacity and seismic resilience of frame structures, seismic fragility evaluation of three 8‐story reinforced concrete (RC) frame structures was conducted based on the incremental dynamic analysis (IDA) using 11 ground motion records. The main parameter is the longitudinal reinforcement configuration in the frame columns, where the first structure is reinforced with HRB 600 grade steel bars in the columns, the second structure is replaced with equal area ultra‐high‐strength (UHS) steel bars (i.e., with a yield strength of approximately 1425 MPa), and the third structure is replaced with equal strength UHS steel bars. A numerical model of the RC frame structure was developed and then validated using previous experimental results. The exceeding probabilities at various performance limit states were calculated based on two typical engineering demand parameters (EDPs) of maximum interstory drift and residual interstory drift. The results showed that using UHS longitudinal steel bars instead of HRB 600 grade steel bars in frame columns could reduce the energy dissipation capacity of the structure, inevitably leading to an increase in the maximum interstory response of the frame. However, much lower exceedance probability was observed in the UHS‐enhanced frame under the repair available limit state based on the residual interstory drift, indicating that the UHS‐enhanced RC frame had higher seismic resilience. In addition, compared to equal area substitution, equal strength substitution is a more ideal design method that can use fewer UHS steel bars to achieve comparable reparability and a smaller increase in maximum interstory drift.
Rising water temperature in rivers: Ecological impacts and future resilience
Authors: Johnson Matthew F. , Albertson Lindsey K. , Algar Adam C. , Dugdale Stephen J. , Edwards Patrick , England Judy , Gibbins Christopher , Kazama So , Komori Daisuke , MacColl Andrew D. C. , Scholl Eric A. , Wilby Robert L. , de Oliveira Roque Fabio , Wood Paul J. 
Published: March 2024

AbstractRising water temperatures in rivers due to climate change are already having observable impacts on river ecosystems. Warming water has both direct and indirect impacts on aquatic life, and further aggravates pervasive issues such as eutrophication, pollution, and the spread of disease. Animals can survive higher temperatures through physiological and/or genetic acclimation, behavioral and phenological change, and range shifts to more suitable locations. As such, those animals that are adapted to cool‐water regions typically found in high altitudes and latitudes where there are fewer dispersal opportunities are most at risk of future extinction. However, sub‐lethal impacts on animal physiology and phenology, body‐size, and trophic interactions could have significant population‐level effects elsewhere. Rivers are vulnerable to warming because historic management has typically left them exposed to solar radiation through the removal of riparian shade, and hydrologically disconnected longitudinally, laterally, and vertically. The resilience of riverine ecosystems is also limited by anthropogenic simplification of habitats, with implications for the dispersal and resource use of resident organisms. Due to the complex indirect impacts of warming on ecosystems, and the species‐specific physiological and behavioral response of organisms to warming, predicting how river ecosystems will change in the future is challenging. Restoring rivers to provide connectivity and heterogeneity of conditions would provide resilience to a range of expected co‐occurring pressures, including warming, and should be considered a priority as part of global strategies for climate adaptation and mitigation.This article is categorized under:
Science of Water > Water and Environmental Change
Water and Life > Nature of Freshwater Ecosystems
Water and Life > Stresses and Pressures on Ecosystems
Fate of perfluoroalkyl and polyfluoroalkyl substances (PFAS) through two full‐scale wastewater sludge incinerators
Authors: Winchell Lloyd J. , Wells Martha J. M. , Ross John J. , Kakar Farokh , Teymouri Ali , Gonzalez Dana J. , Dangtran Ky , Bessler Scott M. , Carlson Shane , Almansa Xavier Fonoll , Norton John W. , Bell Katherine Y. 
Published: March 2024

AbstractPerfluoroalkyl and polyfluoroalkyl substances (PFAS) are an emerging issue in wastewater treatment. High‐temperature thermal processes, incineration being time‐tested, offer the opportunity to destroy and change the composition of PFAS. The fate of PFAS has been documented through wastewater sludge incinerators, including a multiple hearth furnace (MHF) and a fluidized bed furnace (FBF). The dewatered wastewater sludge feedstock averaged 247‐ and 1280‐μmol targeted PFAS per sample run in MHF and FBF feed, respectively. Stack emissions (reportable for all targeted PFAS from MHF only) averaged 5% of that value with shorter alkyl chain compounds comprising the majority of the targeted PFAS. Wet scrubber water streams accumulated nonpolar fluorinated organics from the furnace exhaust with an average of 0.740‐ and 0.114‐mol Fˉ per sample run, for the MHF and FBF, respectively. Simple alkane PFAS measured at the stack represented 0.5%–4.5% of the total estimated facility greenhouse gas emissions.Practitioner Points
The MHF emitted six short chain PFAS from the stack, which were shorter alkyl chain compounds compared with sludge PFAS.
The FBF did not consistently emit reportable PFAS from the stack, but contamination complicated the assessment.
Five percent of the MHF sludge molar PFAS load was reported in the stack.
MHF and FBF wet scrubber water streams accumulated nonpolar fluorinated organics from the furnace exhaust.
Ultra‐short volatile alkane PFAS measured at the stack represented 0.5%–4.5% of the estimated facility greenhouse gas emissions.
Let it stick: Strategies and applications for intracellular plasma membrane targeting of proteins inSaccharomyces cerevisiae
Authors: Muth Liv Teresa , Van Bogaert Inge Noëlle Adriënne 
Published: March 2024

AbstractLipid binding domains and protein lipidations are essential features to recruit proteins to intracellular membranes, enabling them to function at specific sites within the cell. Membrane association can also be exploited to answer fundamental and applied research questions, from obtaining insights into the understanding of lipid metabolism to employing them for metabolic engineering to redirect fluxes. This review presents a broad catalog of membrane binding strategies focusing on the plasma membrane ofSaccharomyces cerevisiae. Both lipid binding domains (pleckstrin homology, discoidin‐type C2, kinase associated‐1, basic‐rich and bacterial phosphoinositide‐binding domains) and co‐ and post‐translational lipidations (prenylation, myristoylation and palmitoylation) are introduced as tools to target the plasma membrane. To provide a toolset of membrane targeting modules, respective candidates that facilitate plasma membrane targeting are showcased including their in vitro and in vivo properties. The relevance and versatility of plasma membrane targeting modules are further highlighted by presenting a selected set of use cases.
The School Systems Remix: Building Democratic School Systems Through Hip-Hop
Authors: Lipset Michael , Simmons Tony 
Published: March 2024

Abstract4 Learning is the sister nonprofit to the High School for Recording Arts, a public charter school in St. Paul, Minnesota, that has been working to reengage out-of-school youth through the recording arts and other creative endeavors since 1998. The school serves roughly 350 students each year through a personalized, project-based approach to instruction that centers student identities, social justice, entrepreneurship, and production through the recording arts. 4 Learning was founded in 2019 to serve schools and districts across the country and around the world in implementing best practices for democratic schooling honed and codified at the High School for Recording Arts over the course of the last 25 years.
Conclusions
Authors: Hoffmann Andrea Ribeiro , Sandrin Paula , Doukas Yannis E. 
Published: March 2024

AbstractThis chapter summarizes the main findings and presents a compilation of key recommendations advanced by the authors of this edited volume to address the climate change. Given the interdisciplinary nature of the volume, which includes theoretical perspectives from international relations, law, economics, global ethics, and psychoanalysis, the recommendations refer both to the political and the policy level, as well as the institutional design of cooperation.
Moduli spaces of instantons in flag manifold sigma models. Vortices in quiver gauge theories
Authors: Fujimori Toshiaki , Nitta Muneto , Ohashi Keisuke 
Published: March 2024

Abstract
In this paper, we discuss lumps (sigma model instantons) in flag manifold sigma models. In particular, we focus on the moduli space of BPS lumps in general Kähler flag manifold sigma models. Such a Kähler flag manifold, which takes the form $$ \frac{\textrm{U}\left({n}_1+\cdots +{n}_{L+1}\right)}{\textrm{U}\left({n}_1\right)\times \cdots \times \textrm{U}\left({n}_{L+1}\right)} $$

U

n
1

+
⋯
+

n

L
+
1

U

n
1

×
⋯
×
U

n

L
+
1

, can be realized as a vacuum moduli space of a U(N1) × ··· × U(NL) quiver gauged linear sigma model. When the gauge coupling constants are finite, the gauged linear sigma model admits BPS vortex configurations, which reduce to BPS lumps in the low energy effective sigma model in the large gauge coupling limit. We derive an ADHM-like quotient construction of the moduli space of BPS vortices and lumps by generalizing the quotient construction in U(N) gauge theories by Hanany and Tong. As an application, we check the dualities of the 2d models by computing the vortex partition functions using the quotient construction.
Multiple soft-photon emission at next-to-leading power to all orders
Authors: Engel Tim 
Published: March 2024

Abstract
This paper derives a next-to-leading power (NLP) soft theorem for multi-photon emission to all orders in the electromagnetic coupling constant, generalising the leading-power theorem of Yennie, Frautschi, and Suura. Working in the QED version of heavy-quark effective theory, multi-emission amplitudes are shown to reduce to single- and double-radiation contributions only. Single soft-photon emission, in turn, is described by the recent all-order extension of the Low-Burnett-Kroll theorem, where the tree-level formula is supplemented with a one-loop exact soft function. The same approach is used in this article to prove that the genuine double-emission contribution is tree-level exact. As a validation and a first non-trivial application of the multi-photon theorem, the real-real-virtual electron-line corrections to muon-electron scattering are calculated at NLP in the soft limit.
Flipped SU(5): unification, proton decay, fermion masses and gravitational waves
Authors: King Stephen F. , Leontaris George K. , Zhou Ye-Ling 
Published: March 2024

Abstract
We study supersymmetric (SUSY) flipped SU(5) × U(1) unification, focussing on its predictions for proton decay, fermion masses and gravitational waves. We performed a two-loop renormalisation group analysis and showed that the SUSY flipped SU(5) model predicts a high GUT scale MGUT> 1016 GeV. We also investigated the restrictions on the MB−L scale which is associated with the U(1)χ breaking scale. We found that the MB−L scale can vary in a broad region with negligible or little effect on the value of MGUT. Proton decay in this model is induced by dimension-6 operators only. The dimension-5 operator induced by SUSY contribution is suppressed due to the missing partner mechanism. We found that the partial decay width p → π0e+ is high suppressed, being at least one order of magnitude lower than the future Hyper-K sensitivity. We also studied fermion (including neutrino) masses and mixings which can also influence proton decay. We presented two scenarios of flavour textures to check the consistency of the results with fermion masses and mixing. The B − L gauge breaking leads to the generation of cosmic strings. The B − L scale here is not constrained by gauge coupling unification. If this scale is very close that of GUT breaking, strings can be unstable due to the decay to monopole-antimonople pair. Such metastable strings can be used to explain the NANOGrav signals of stochastic gravitational wave background, which may be interpreted here as resulting from the decay of metastable cosmic strings.
Direct quarkonium-plus-gluon production in DIS in the color glass condensate
Authors: Kang Zhong-Bo , Li Emilie , Salazar Farid 
Published: March 2024

Abstract
We compute the differential cross-section for direct quarkonium production accompanied by a gluon in high-energy deep inelastic scattering (DIS) at small-x. We employ the Non-Relativistic QCD factorization framework, focusing on the S-wave contribution to the formation of the quarkonium, and including both color singlet and octet contributions. Our short distance coefficients for the production of the heavy quark pair are obtained within the Color Glass Condensate effective field theory. Our results pave the way towards the next-to-leading order computation of direct quarkonium in DIS, as well as the study of azimuthal correlations of direct quarkonium and jet.
Bounds on scattering of neutral Goldstones
Authors: Acanfora Francesca , Guerrieri Andrea , Häring Kelian , Karateev Denis 
Published: March 2024

Abstract
We study the space of 2 → 2 scattering amplitudes of neutral Goldstone bosons in four space-time dimensions. We establish universal bounds on the first two non-universal Wilson coefficients of the low energy Effective Field Theory (EFT) for such particles. We reconstruct the analytic, crossing-symmetric, and unitary amplitudes saturating our bounds, and we study their physical content. We uncover non-perturbative Regge trajectories by continuing our numerical amplitudes to complex spins. We then explore the consequence of additional constraints arising when we impose the knowledge about the EFT up to the cut-off scale. In the process, we improve on some aspects of the numerical S-matrix bootstrap technology for massless particles.
Leptogenesis in a Left-Right Symmetric Model with double seesaw
Authors: Patel Utkarsh , Adarsh Pratik , Patra Sudhanwa , Sahu Purushottam 
Published: March 2024

Abstract
We explore the connection between low-scale CP-violating Dirac phase (δ) and high-scale leptogenesis in a Left-Right Symmetric Model (LRSM) with scalar bidoublet and doublets. The fermion sector of the model is extended with one sterile neutrino (SL) per generation to implement a double seesaw mechanism in the neutral fermion mass matrix. The double seesaw is performed via the implementation of type-I seesaw twice. The first seesaw facilitates the generation of Majorana mass term for heavy right-handed (RH) neutrinos (NR), and the light neutrino mass becomes linearly dependent on SL mass in the second. In our framework, we have taken charge conjugation (C) as the discrete left-right (LR) symmetry. This choice assists in deriving the Dirac neutrino mass matrix (MD) in terms of the light and heavy RH neutrino masses and light neutrino mixing matrix UPMNS (containing δ). We illustrate the viability of unflavored thermal leptogenesis via the decay of RH neutrinos by using the obtained MD with the masses of RH neutrinos as input parameters. A complete analysis of the Boltzmann equations describing the asymmetry evolution is performed in the unflavored regime, and it is shown that with or without Majorana phases, the CP-violating Dirac phase is sufficient to produce the required asymmetry in the leptonic sector within this framework for a given choice of input parameters. Finally, we comment on the possibility of constraining our model with the current and near-future oscillation experiments, which are aimed at refining the value of δ.
Matrices for finite group representations that respect Galois automorphisms
Authors: Benson David J. 
Published: March 2024

AbstractWe are given a finite group H, an automorphism $$\tau $$
τ
of H of order r, a Galois extension L/K of fields of characteristic zero with cyclic Galois group $$\langle \sigma \rangle $$

⟨
σ
⟩

of order r, and an absolutely irreducible representation $$\rho :H\rightarrow \textsf {GL} (n,L)$$

ρ
:
H
→
GL
(
n
,
L
)

such that the action of $$\tau $$
τ
on the character of $$\rho $$
ρ
is the same as the action of $$\sigma $$
σ
. Then the following are equivalent. $$\bullet $$
∙
$$\rho $$
ρ
is equivalent to a representation $$\rho ':H\rightarrow \textsf {GL} (n,L)$$

ρ
′

:
H
→
GL

(
n
,
L
)

such that the action of $$\sigma $$
σ
on the entries of the matrices corresponds to the action of $$\tau $$
τ
on H, and $$\bullet $$
∙
the induced representation $$\textsf {ind} _{H,H\rtimes \langle \tau \rangle }(\rho )$$

ind

H
,
H
⋊
⟨
τ
⟩

(
ρ
)

has Schur index one; that is, it is similar to a representation over K. As examples, we discuss a three dimensional irreducible representation of $$A_5$$

A
5

over $$\mathbb {Q}[\sqrt{5}]$$

Q
[

5

]

and a four dimensional irreducible representation of the double cover of $$A_7$$

A
7

over $$\mathbb {Q}[\sqrt{-7}]$$

Q
[

-
7

]

.
Global Multiplicity of Positive Solutions for Nonlinear Robin Problems with an Indefinite Potential Term
Authors: Öztürk Eylem , Papageorgiou Nikolaos S. 
Published: March 2024

AbstractWe consider a Robin problem driven by a nonlinear nonhomogeneous differential operator plus an indefinite potential term. The reaction is parametric and exhibits the competing effects of a concave (sublinear) and of a convex (superlinear) terms (“concave-convex” problem). The parameter multiplies the convex term. We prove an existence and multiplicity theorem which is global in parameter.