bluuebunny/crossref_metadata_2025_split huggingface dataset:
Air Fluidized Support System in the Management of Major Burns
Authors: Malhotra S , Bharat R 
Published: September 2023

SummaryThirty-two patients with major burns over the back of trunk and limbs were treated on the Air fluidized support system (Clinitron) and the results were compared with a control group of patients treated on conventional beds. It was found that in the group treated on Clinitron bed, mortality was lower, graft take was better, pressure sores did not develop and the patients were more comfortable. The results have been compared to similar studies. Though the initial investment and maintenance cost is very high, the device offers immense benefits, especially ease in nursing care.
Validation of triglyceride and glucose index as a rapid diagnostic test to diagnose insulin resistance in pregnant and lactating sows
Authors: Ortiz Ruy , López Manuel , Pérez Rosa E. , Ordaz Gerardo 
Published: September 2023

Context In sows, the development of insulin resistance (IR) during late gestation and lactation favours a productive gap associated with low feed intake during lactation, which is reflected in the herd profitability. Therefore, the development of rapid-use tests to diagnose IR on farms will be very useful. Aims We aimed to validate the triglyceride and glucose (T-G) index as a rapid diagnostic test to diagnose IR in sows during late gestation and lactation. Methods The homeostatic model to evaluate IR (HOMA-IR) was used as a reference. Sixty sows (farrowing 1–5) were selected for blood sampling during late gestation and lactation. In the total number of samples collected (n = 480), the glucose, insulin, and triglyceride concentrations were determined to estimate the HOMA-IR and T-G index. Receiver operating characteristic curves were used to determine cut-off values for diagnosing IR using the T-G index. Key results The highest (P < 0.05) values of HOMA-IR and T-G index were found between Day 110 of gestation and Day 3 of lactation, regardless of the farrowing number evaluated. The area under the curve for the T-G index was 0.83 (95% CI 0.78–0.88). The best overall cut-off point for diagnosing IR by using the T-G index was 4.24 (86% sensitivity and 77% specificity). The association between the T-G index and HOMA-IR was 0.68 (P < 0.0001), regardless of the farrowing number and productive stage (late gestation, early lactation, and late lactation). According to the farrowing number and productive stage, the best cut-off points were 4.21 (sensitivity 86% and specificity 73%), 4.20 (sensitivity 83% and specificity 73%), and 4.20 (sensitivity 88% and specificity 92%) for sow’s first and fourth farrowing, and late gestation respectively. Conclusions The T-G index is a reliable field test for IR diagnosis in sows during late gestation and lactation. Implications The T-G index test evaluated for the diagnosis of IR in sows is an approach that could be significantly exploited at the farm level. This test could become a support tool to maximise the productivity of the sow, since the development of IR could be modulated through zootechnical practices.
Conservation biological control of insect pests
Authors: Emden Helmut F. 
Published: September 2023

Abstract
Conservation biological control increases the control effect of locally occurring natural enemies and has two approaches. Ecological engineering of the agroecosystem involves improving the environment in favour of natural enemies. The second approach is to devise ways of improving the ratio of natural enemies to pests by applying an insecticide in a partially selective manner. The tools of ecological engineering are to provide pollen and nectar sources as an adult food for beneficial insects, to increase floral diversity to increase the numbers of other insects that provide alternative food for beneficials, perhaps to add a single plant species to support an essential alternate host for a predator or parasitoid, or to use plant diversity to raise humidity in the crop. These tools have long been available, but have only been exploited more recently as the public and governments have required greater environmental sustainability and pests have increasingly become tolerant to the available insecticides. Few insecticides offer intrinsic selectivity in favour of natural enemies, but selectivity of broad-spectrum compounds can be obtained by reducing the dose of the insecticide or by restricting its application in time or space. Whatever approach is considered, its practical application is usually quite simple.
Ultrathin internal dielectric electrostatic actuator for reduced pull-in voltage and bidirectional actuation
Authors: Verma Satish K , Mitra Bhaskar 
Published: September 2023

Abstract
Direction and analog deflection control, as well as low voltage digital switching are the most desirable attributes in electrostatic actuators for current MEMS applications. In this work we show how internal dielectric transduction can be used to reduce pull-in voltages without reducing the air gap, and to effect bi-directional actuation. The actuator is a metal–dielectric–metal sandwich. For hybrid actuation to achieve reduced pull-in, the device has a thick bottom metal and a thin top metal, while for the upward actuator the device has a thick top metal and a thin bottom metal. An out-of-plane deflection of 108 nm is achieved using 5 V applied voltage for the upward actuator, while the hybrid actuator shows over 50% reduction in pull-in voltage from 1.26 V to 0.62 V.
Friedel oscillation in non-Fermi liquid: lesson from exactly solvable Hatsugai–Kohmoto model
Authors: Zhao Miaomiao , Yang Wei-Wei , Luo Hong-Gang , Zhong Yin 
Published: September 2023

AbstractWhen non-magnetic impurity immerses in Fermi sea, a regular modulation of charge density around impurity will appear and such phenomena is called Friedel oscillation (FO). Although both Luttinger liquid and Landau Fermi liquid show such characteristic oscillation, FO in generic non-Fermi liquid (NFL) phase is still largely unknown. Here, we show that FO indeed exists in NFL state of an exactly solvable model, i.e. the Hatsugai–Kohmoto model which has been intensively explored in recent years. Combining T-matrix approximation and linear-response-theory, an interesting picture emerges, if two interaction-induced quasi-particles bands in NFL are partially occupied, FO in this situation is determined by a novel structure in momentum space, i.e. the ‘average Fermi surface’ (average over two quasi-particle Fermi surface), which highlights the inter-band particle-hole excitation. We hope our study here provides a counterintuitive example in which FO with Fermi surface coexists with NFL quasi-particle, and it may be useful to detect hidden ‘average Fermi surface’ structure in other correlated electron systems.
Emulating learning behavior in a flexible device with self-formed Ag dewetted nanostructure as active element
Authors: Yadav Bhupesh , Mondal Indrajit , Bannur Bharath , Kulkarni Giridhar U 
Published: September 2023

Abstract
Neuromorphic devices are a promising alternative to the traditional von Neumann architecture. These devices have the potential to achieve high-speed, efficient, and low-power artificial intelligence. Flexibility is required in these devices so that they can bend and flex without causing damage to the underlying electronics. This feature shows a possible use in applications that require flexible electronics, such as robotics and wearable electronics. Here, we report a flexible self-formed Ag-based neuromorphic device that emulates various brain-inspired synaptic activities, such as short-term plasticity and long-term potentiation (STP and LTP) in both the flat and bent states. Half and full-integer quantum conductance jumps were also observed in the flat and bent states. The device showed excellent switching and endurance behaviors. The classical conditioning could be emulated even in the bent state.
Threshold distribution of equal states for quantitative amplitude fluctuations
Authors: Yao Wenpo , Yao Wenli , Wang Jun 
Published: September 2023

Abstract

Objective. The distribution of equal states (DES) quantifies amplitude fluctuations in biomedical signals. However, under certain conditions, such as a high resolution of data collection or special signal processing techniques, equal states may be very rare, whereupon the DES fails to measure the amplitude fluctuations. Approach. To address this problem, we develop a novel threshold DES (tDES) that measures the distribution of differential states within a threshold. To evaluate the proposed tDES, we first analyze five sets of synthetic signals generated in different frequency bands. We then analyze sleep electroencephalography (EEG) datasets taken from the public PhysioNet. Main results. Synthetic signals and detrend-filtered sleep EEGs have no neighboring equal values; however, tDES can effectively measure the amplitude fluctuations within these data. The tDES of EEG data increases significantly as the sleep stage increases, even with datasets covering very short periods, indicating decreased amplitude fluctuations in sleep EEGs. Generally speaking, the presence of more low-frequency components in a physiological series reflects smaller amplitude fluctuations and larger DES. Significance. The tDES provides a reliable computing method for quantifying amplitude fluctuations, exhibiting the characteristics of conceptual simplicity and computational robustness. Our findings broaden the application of quantitative amplitude fluctuations and contribute to the classification of sleep stages based on EEG data.
Hints of granular superconductivity in natural graphite verified by trapped flux transport measurements
Authors: Champi Ana , Precker Christian E , Esquinazi Pablo D 
Published: September 2023

Abstract
This study describes electrical transport measurements as a function of magnetic field and temperature that provide hints of the existence of superconductivity with a critical temperature of

T
c

∼
350

K in a natural graphite sample. The measurements were done in a restricted temperature 300 K

⩽
T
⩽
450

K and magnetic field

B
⩽
400

mT range. Electrical resistance measurements at remanence (zero field), after the application of a magnetic field, indicate the existence of trapped flux, which remains nearly unchanged within

∼

30

min but it vanishes at a temperature of

∼

330

K. The apparent transition is accompanied by a clear enhancement of the magnetoresistance at

T
<

T
c

. Raman measurements on the bulk sample reveal the existence of the rhombohedral stacking order, which interfaces with the usual Bernal phase were predicted to lead to high temperature superconductivity due to the formation of robust flat bands in the electron dispersion relation.
Charged anisotropic tolman IV solution in matter-geometry coupled theory
Authors: Sharif M , Naseer Tayyab 
Published: September 2023

Abstract
This paper discusses the interior distribution of several anisotropic star models coupled with an electromagnetic field in the context of

f
(

,

,

)

gravity, where


=



β
ξ



β
ξ

. In this regard, a standard model of this modified gravity is taken as


+

ν

3



β
ξ



β
ξ

, where ν
3 symbolizes an arbitrary coupling constant. We assume a charged spherically symmetric metric that represents the interior geometry of compact quark stars and develop the corresponding modified field equations. These equations are then solved with the help of metric potentials of Tolman IV spacetime and a linear bag model equation of state. We consider the experimental data (i.e. radii and masses) of different quark models such as SMC X-4, SAX J 1808.4-3658, Her X-I and 4U 1820-30 to analyze how the charge and modified corrections affect their physical characteristics. The viability and stability of the resulting model is also checked for the considered star candidates with two different values of ν
3. We conclude that only two models, Her X-I and 4U 1820-30 show stable behavior in this modified framework for both values of the coupling constant.
Time-frequency analysis of radon and thoron data using continuous wavelet transform
Authors: Rasheed Awais , Osama Muhammad , Rafique Muhammad , Tareen Aleem Dad Khan , Lone Kashif Javed , Qureshi Shahzad Ahmad , Kearfott Kimberlee Jane , Alam Aftab , Nikolopoulos Dimitrios 
Published: September 2023

Abstract
Continuous exposure to environmental radiation, whether it derives from natural or artificial sources, is thought to pose a substantial risk to public health. In addition to the health effects associated with prolonged exposure to environmental radiations, long-term measurements of these radiations can be used for a variety of beneficial purposes, such as the forecasting of impending earthquakes. Signal processing is an important application used for the purpose of forecasting. Wavelets, being signal-processing tools, are helpful in many applications such as anomaly detection in time series data. However, selection of the best wavelet for a particular application is still a problem that hasn’t found a satisfactory solution. In this study, we used continuous wavelet transform (CWT) on environmental radiations, specifically radon time series (RTS) and thoron time series (TTS) data, for the investigation of time-frequency information (TFI). The distribution of energy in the output wavelet decomposition have been investigated by several wavelet families such COIF4, DB4, SYM4 to detect frequency composition of signal and its relation with anomalies hidden in the observed data. Using discrete wavelet transform (DWT), specifically SYM4, DB4, and COIF4, we transformed the radon and thoron time series into a time-dependent sum of frequency components. Using CWT scalograms, the anomalies in the both of time series datasets (TSD) have been identified, and these anomalies have been associated with the seismic events that occurred during the period of the study. The results show that DB4 and SYM4 wavelets are good at identifying anomalies in original radon and thoron TSD, but SYM4 performs better for DWT-decomposed radon and thoron TSD.
Computational insight into the fundamental physical properties of ternary ABCl3 chloroperovskites compounds using the DFT approach
Authors: Husain Mudasser , Albalawi Hind , Huwayz Maryam Al , Al Saqri Noor alhuda , Khan Rajwali , Rahman Nasir 
Published: September 2023

Abstract
In this research, the ternary non-centrosymmetric chloroperovskites compounds of the form ABCl3 (A = Rb and B = Be, Mg) are investigated extensively to predict the structural, mechanical, and optoelectronic properties with DFT incorporated in WIEN2K code. The crystalline structure of interested chloroperovskites is identified to be cubic, non-centrosymmetric, and stable. The elastic constants Cij, bulk modulus, criteria of Pugh ratio, and the Born criteria confirm the ductility and mechanical stability of ternary RbBeCl3 and RbMgCl3 materials. Electronic properties such as the band structures and density of states are examined with the most widely recognized TB-mBJ potential approximation. RbBeCl3 shows semiconducting behaviour with an indirect wide band gap energy of 3.74 eV from R-Γ symmetries points, while RbMgCl3 is assumed to be an insulator that possesses indirect wide band gap energy of 6.28 eV from R-Γ. It is identified that the ABCl3 (A = Rb and B = Be, Mg) non-centrosymmetric compounds change the behavior from wide band gap semiconductors to perfect insulators when the ‘B’ site in ABCl3 varies from ‘Be’ to ‘Mg’ element. In the electromagnetic range from 0 eV to 40 eV of incident photons energy, several parameters in optical properties that includes the dielectric function, refractive index, absorption coefficient, optical conductivity, extinction coefficient, and energy loss function are investigated for the quest of potential applications of interested non-centrosymmetric cubic systems in modern photovoltaic technologies. These outcomes may add inclusive understanding within ultraviolet ranges for photovoltaic applications.
Improving the electrochemical and physical properties of nickel cobaltite /polyacrylonitrile nanocomposites for supercapacitor applications
Authors: Shoubak Walaa M , Hassan A , Mahrous S , Hassen A 
Published: September 2023

Abstract
Nanocomposite films composed of polyacrylonitrile (PAN) doped with nickel cobaltite (NCO) nanoparticles (NPs) with different weight ratios have been prepared and characterized. Field emission scanning electron microscopy (FE-SEM) confirmed that the NCO NPs were successfully incorporated into the PAN matrix. The x-ray diffraction (XRD) studies showed that the PAN degree of crystallinity was lowered by the incorporation of NCO NPs in the polymer matrix. Other various characterization techniques including energy dispersive x-ray (EDX), Fourier transform infrared (FTIR), and thermal analysis were used. In addition, the effect of NCO NPs on the dielectric permittivity and ac-conductivity exhibits that the ac conductivity of PAN is enhanced from 0.06 ×10− 4 to 3.19 ×10− 4 S m−1 by doping with 10 wt% NCO NPs at room temperature (RT) and 1.0 MHz. Moreover, the optical properties showed that the NCO/PAN nanocomposites revealed lower transmittance and narrowed the optical bandgap (E
g) of the PAN from 3.92 to 3.37 eV. Cyclic voltammetry (CV), and galvanostatic charge–discharge (GCD) tests were performed to investigate the electrochemical behavior of the studied nanocomposites. It was found that PAN loaded with 10 wt% NCO NPS attains an excellent specific capacitance of 1241 F g−1 at a current density of 0.5 A/g. Also, the cycling stability is significantly enhanced, and the capacitance retention rate approaches 93.2% after 5000 cycles, which provides the possibility of using the studied nanocomposite films for supercapacitor applications.
Morphological, optical and electrochemical properties of tin(II) 2,3-naphthalocyanine for organic electronic applications
Authors: Hassanien A M , AlHazaa Abdulaziz N , Atta A A , Altalhi Tariq A , Refat Moamen S , Mersal Gaber A M , Almutairi Fahad N 
Published: September 2023

Abstract
Herein, tin(II) 2,3-naphthalocyanine (SnNC) organic dye was successfully thermally deposited onto different optical transparent substrates such as glass, quartz, ITO, and FTO. FE-SEM technique reveals that SnNC film shows a uniform and symmetrical spherical-shaped with an average diameter of ∼50 nm. Annealing up to 473 K for 4 h increases the crystallite size of SnNC thin film. SnNC thin film shows absorption bands centered at 858 nm, 313 nm, and 249 nm with two shoulders at 775 nm and 350 nm. We present the absorbance, specular transmittance, specular reflectance and fluorescence properties of SnNc deposited on the different transparent substrates. The oscillator strengths (f) and the electric dipole strength (q2) of SnNC thin film were estimated from the molar absorptivity (

ε

molar

) spectra. According to the Tauc model, two optical gap transitions were estimated as 1.03 eV and 3.48 eV. Annealing up to 473 K for 4 h slightly increases them to 1.15 eV and 3.59 eV, respectively. At excitation wavelength = 360 nm, two emission bands were observed at around 403 nm and 674 nm. Upon annealing at 373 K and 473 K, the real part of the refractive index of SnNC thin film decreases, which is correlated with a decrease in mass density. Electrochemical HOMO—LUMO band gaps of SnNC estimated from the cyclic voltammetry (CV) measurements (

E

g

C
V

=
1.12

eV

) agree well with the observed optical energy gap estimated from the optical measurements. The wide range absorption, emission, good thermal stability, suitable optical band gap, and electrochemical properties, prove an effective example of organic dye suitable for organic electronic applications.
Spectral properties and exact solutions for Rabi-coupled noninteracting fermions in a spin-dependent anharmonic trapping potential
Authors: Xie Qiongtao 
Published: September 2023

Abstract
We investigate the effect of spin-motion coupling on the spectral properties of Rabi-coupled noninteracting fermions in a spin-dependent harmonic trapping potential plus an anharmonic term. It is shown that when the spin-motion coupling becomes strong, fermions tend to stay in one of the two components. In the limit of the strong spin-motion coupling, the entire energy spectrum exhibits a sequence of near degeneracy. In particular, in the case of the sextic anharmonic term, the system admits the exact analytical energies and wave functions of the bound states for an infinite number of the specific parameter conditions. The properties of the energy spectrum have also been discussed on basis of these obtained exact analytical solutions.
Ab initio investigations on the structural and optical properties of sol-gel synthesized bismuth telluride nanoparticles
Authors: T Rasmi , K A Malini 
Published: September 2023

Abstract
Bismuth telluride nanopowders are prepared by a simple but efficient wet chemical synthesis route namely Sol-gel auto-combustion. X-ray diffraction (XRD) and Scanning Electron Microscopic (SEM) analyses were used to study the structural and morphological characteristics. The crystallinity of the produced samples were verified using XRD, and composition was confirmed by Energy Dispersive x-ray analysis (EDAX) measurements. The optical characterization of the prepared bismuth nanopowders were also carried out using Diffused Reflectance Spectroscopy (DRS) and Raman spectroscopic analysis. The optical bandgap of the prepared nanopowder is found to be 3.27 eV. Raman active modes of the sample are also reported. The optical properties of the Bismuth telluride nanopowder are rarely reported. The optical constant evaluation of the prepared sample point towards the probable application of these materials in optoelectronic devices in addition to its conventional thermoelectric applications.
Ultraviolet-complete quantum field theories with fractional operators
Authors: Calcagni Gianluca , Rachwał Lesław 
Published: September 2023

Abstract
We explore quantum field theories with fractional d'Alembertian □
γ
. Both a scalar field theory with a derivative-dependent potential and gauge theory are super-renormalizable for a fractional power 1 < γ ≤ 2, one-loop super-renormalizable for γ > 2 and finite if one introduces killer operators. Unitarity is achieved by splitting the kinetic term into the product of massive fractional operators, eventually sending the masses to zero if so desired. Fractional quantum gravity is also discussed and found to be super-renormalizable for 2 < γ ≤ 4 and one-loop super-renormalizable for γ > 4. To make it unitary, we combine the splitting procedure with a fractional generalization of the Anselmi-Piva procedure for fakeons. Among new technical results with wider applications, we highlight the Leibniz rule for arbitrary powers of the d'Alembertian and the Källén-Lehmann representation for a propagator with an arbitrary number of branch cuts.
Superfluid dark matter in tension with weak gravitational lensing data
Authors: Mistele T. , McGaugh S. , Hossenfelder S. 
Published: September 2023

Abstract
Superfluid dark matter (SFDM) is a model that promises to reproduce the successes of both particle dark matter on cosmological scales and those of Modified Newtonian Dynamics (MOND) on galactic scales.
SFDM reproduces MOND only up to a certain distance from the galactic center, and only for kinematic observables: it does not affect trajectories of light.
We test whether this is consistent with a recent analysis of weak gravitational lensing that has probed accelerations around galaxies to unprecedentedly large radii. This analysis found the data to be close to the prediction of MOND, suggesting they might be difficult to fit with SFDM.
To investigate this matter, we solved the equations of motion of the model and compared the result to observational data.
Our results show that the SFDM model is incompatible with the weak-lensing observations, at least in its current form.