bluuebunny/crossref_metadata_2025_split huggingface dataset:
Accelerating the transition from coal to renewables in Indonesia to achieve a net‐zero energy system
Authors: Gulagi Ashish , Oyewo Ayobami Solomon , Bogdanov Dmitrii , Simamora Pamela , Tampubolon Agus , Pujantoro Mentari , Godron Philip , Tumiwa Fabby , Breyer Christian 
Published: February 2025

AbstractHistorically heavily reliant on coal, Indonesia is at a crucial juncture to accelerate its transition to renewable energy in order to meet its net‐zero goals. However, most transition pathways generally do not focus on the fast transition from fossil fuels to achieve carbon neutrality. This study compares the techno‐economic feasibility of three distinctive energy transition pathways. The net‐zero pathway, with an accelerated transition from coal to renewable energy, leads to a 42% reduction in annualised energy system cost and achieves carbon neutrality by 2050, compared to a pathway dependent on continued coal investments. This is enabled by the cost competitiveness of solar photovoltaics‐based electrification of the energy system, supported by batteries, transmission grid expansion across the main islands, and various power‐to‐X routes for flexibility. Furthermore, Indonesia should carefully consider the environmental impact of large‐scale palm oil cultivation and biofuel expansion. We find that the land efficiency of solar photovoltaics‐based e‐fuel production is much higher than cultivating oil palm for biofuel synthesis. Thus, a fast transition towards a net‐zero energy system will bring various direct and indirect benefits to Indonesia.
So schön neu?
Authors: Schwencke Silja 
Published: February 2025

ZusammenfassungUm sicher und motiviert in die Ausbildung starten zu können, braucht es in der Praxis Menschen, die Auszubildende führen und stützen. Leider fehlen sie nur allzu oft, wie eine Umfrage des DBfK im letzten Jahr zeigte. Zum Glück gibt es auch einige positive Beispiele.
Adrenocorticotropic Hormone versus Prednisolone for Infantile Epileptic Spasms Syndrome: A Systematic Review and Economic Evaluation
Authors: Gao Ruonan , Cheng Xiao , Huang Liang , Luo Rong , Zeng Linan , Cheng Guo , Yu Qin , Li Hailong , Zhang Lingli 
Published: February 2025

Abstract
Background Infantile epileptic spasms syndrome (IESS) is the most common epileptic encephalopathy in infancy and early childhood. At present, adrenocorticotropic hormone (ACTH) and prednisolone are commonly used as drug treatment regimens for IESS. However, evidence of efficacy and economics remains controversial. This study aimed to evaluate the effectiveness, safety, and economy of ACTH and prednisolone of IESS.
Methods Seven literature databases and two clinical trial registration platforms were searched, and a meta-analysis was conducted. From the perspective of the health care system, a 14-day economic evaluation was conducted. The rate of spasm cessation on the 14th day was used as the effect index. The univariate sensitivity analysis was used to verify the robustness of the results.
Results Nine randomized controlled trials (RCTs) were included. Current clinical evidence is not sufficient to prove the difference in the rate of spasm cessation on the 14th day (risk ratio [RR] = 1.05, 95% CI 0.86–1.27, p = 0.64) and total adverse event rate (RR = 0.87, 95% CI 0.53–1.42, p = 0.57). ACTH had an advantage in improving electroclinical response on the 14th day (RR = 1.46, 95% CI 1.09–1.96, p = 0.01) and reducing the number of months taken for relapse (mean difference = 1.65, 95% CI 1.01–2.29, p < 0.01). The cost of ACTH and prednisolone was 5,629.19 yuan and 5.56 yuan, respectively. Univariate sensitivity analysis showed the most influential factor was the cost of ACTH.
Conclusions There is insufficient evidence to determine whether ACTH or prednisolone is better in the short-term regimen of IESS. ACTH may have more advantages in improving the long-term outcome of IESS. In China, a prednisolone regimen of IESS has a lower cost within 14 days.
Microwave Ablation of T1a and T1b Renal Masses: A Retrospective Study
Authors: Eddin Assim Saad , Rao Karan , Oliva Bradford , Chowdhury Ajmain , Zubin Shetty , Tracy Chad , Smith Brian J. , Laroia Sandeep T. 
Published: February 2025

AbstractThe aim of this study was to evaluate the efficacy and safety of microwave ablation (MWA) for the treatment of T1a and T1b renal masses, with size ranges between 1.2 and 6.5 cm. A retrospective review was performed at a single tertiary comprehensive cancer center between June 2019 and June 2023 of 49 consecutive patients (53 total procedures) who underwent MWA for renal masses. The Solero microwave tissue ablation system (Angiodynamics, Latham, NY, United States) was utilized. Patient demographics, renal mass characteristics, and procedural outcomes were collected. Serum creatinine and estimated glomerular filtration rate (eGFR) were utilized to assess renal functional outcomes. Oncologic outcomes were assessed using evidence of local tumor recurrence on contrast-enhanced cross-sectional imaging, local recurrence-free probability at 1 and 2 years, and overall survival (OS) using the Kaplan–Meier analysis.Forty-nine patients (57% males and 43% females) with a median age of 72 years (range, 38–84 years) underwent 53 MWA procedures. The mean renal mass size was 2.8 ± 0.94 cm (range, 1.2–6.5 cm). Most of the renal tumors were T1a. Three of the 53 total renal tumors were larger than 4 cm (T1b) and the remaining 50 were less than 4 cm in size (T1a). The largest tumor that was ablated was 6.5 cm in size. All the patients were placed under general anesthesia (intubated) before the MWA procedure. A median microwave energy of 100 W (range, 60–140 W) was used. The mean duration of the MWA was 3.9 ± 1.5 minutes, with a 100% technical success rate. Four patients (8.2%) experienced complications, two (4.1%) of whom experienced a major complication. There was no clinically significant change in renal function from pre- to postablation on day 1 or at 3 months. Furthermore, local tumor recurrence was observed in three (6.1%) patients at 2.5, 15, and 25 months postablation. Local recurrence-free probability was 98 and 93% at 1 and 2 years, respectively. The OS was 98 and 87% at 1 and 2 years, respectively. MWA continues to prove to be an effective technique that can be used to treat small renal masses including oncocytomas, with high technical success, low complication rate, low risk of adverse renal functional outcomes, and encouraging results for sustained tumor control.
“Eklavya”: Do-It-Yourself Model: A Rolled Latex Sheet Conduit for Microsurgical Training
Authors: Mirajkar Girish , Bhat Uday , Peswani Amit , Raut Sushrut , Adenwala Husain , Samudre Sayali 
Published: February 2025

Abstract
Objective To introduce a simple and innovative low-fidelity microsurgical model using daily articles available in any plastic surgery operation theatre and to determine its quality, ease of use and cost-effectiveness.
Materials and Methods The model is essentially made by rolling a loose disposable glove upon a K-wire to create a true micro-vessel (< 2 mm). Adjustment in the size and thickness of the conduit can be made. Model was assessed by data obtained from subjective questionnaire to 29 experienced microsurgeons with more than 5 years of independent microsurgical practice. This experience of our model was compared with their experience with other material and animal tissue.
Results The chicken femoral is the best compared to rat model overall, but rolled latex is as good or second best as far as some of the features assessed.
Conclusion “Eklavya” microsurgical model provides a valuable alternative to traditional animal models, allowing trainees to practice and hone their skills without the ethical and financial concerns associated with live animal use.
Dual band angle insensitive metamaterial absorber with MgxCa(0.90−x)Ni0.10Fe2O4 based novel microwave flexible substrate for electromagnetic energy harvesting application
Authors: Hasan Md Shakibul , Islam Mohammad Tariqul , Alenezi Abdulmajeed M. , Moniruzzaman Md , Alshammari Ahmed S. , Soliman Mohamed S. , Alamri Saeed , Samsuzzaman Md 
Published: February 2025

This article presents a metamaterial absorber originated on a flexible substrate of MgxCa(0.90−x)Ni0.10Fe2O4. The MgxCa(0.90−x)Ni0.10Fe2O4 substrate is developed using the sol-gel technique, where X25, X50, and X75 represent 25%, 50%, and 75% of the corresponding material concentration, respectively. The dielectric constant values for X25, X50, and X75 are 2.52, 3.05, and 3.44, with loss tangents of 0.0026, 0.004 25, and 0.0062, respectively. The substrate nanoparticles’ morphology is analyzed using x-ray diffraction, energy dispersive x-ray characterization, and field emission scanning electron microscopy. A metamaterial absorber is then designed on this substrate with a dimension of 16 × 16 mm2. The resonator is comprised of three rings with a square-shaped split outer ring, a square-shaped middle ring, and an innermost arrow-shaped structure. It exhibits absorptance peaks of 99.45% and 99.61% at 4.51 and 7.26 GHz, respectively. Metamaterial and absorber properties are investigated with surface current, electric, and magnetic field analysis. The proposed flexible metamaterial absorber (FMMA) exhibits single negative properties, and it also demonstrates an insensitive response up to 75° for both polarization angle and incident angle variation in transverse electric mode. Furthermore, the FMMA demonstrates exceptionally high energy harvesting (EH) efficiencies of 95.11% and 96.02% at 4.51 and 7.26 GHz, respectively. The efficiency is also investigated for various bending conditions. The small size, lightweight, and flexibility of the structure indicate that MgxCa(0.90−x)Ni0.10Fe2O4 based FMMAs have significant potential for EH applications in the C band.
Measuring remanent magnetic moment of test masses by a compound pendulum in a magnetic shielding room
Authors: Yu Yuanyang , Lin Shengxin , Yan Yi , Huo Yancong , Zhang Butian , Pan Donghua , Wang Shun , Zhou Ze-Bing 
Published: February 2025

In space-borne gravitational wave detection, the remanent magnetic moment of test masses is one of the primary contributors to residual acceleration noise. During the ground test phase, precisely measuring the remanent magnetic moment of the test masses under an ultra-weak magnetic field is crucial for assessing its suitability for the space mission. In this work, we developed a compound pendulum apparatus within the magnetic shielding room, utilizing the pendulum’s periodic motion to convert the remanent magnetic moment into a modulated magnetic field. The measurement resolution of remanent magnetic moment reaches a level of 0.2 nAm2.
The case of Pete Buttigieg
Authors: Zaikovskii Mikhail 
Published: February 2025

Abstract
The research focuses on the construction of gay identity in political speech, with particular attention to Pete Buttigieg, the first openly gay US presidential candidate. During Buttigieg’s 2020 Presidential campaign, his sexuality received significant attention and sparked controversial reactions. This study employs the combination of Corpus Linguistics (CL) and Discourse Analysis as a fruitful approach for analyzing the formation of identity through language. By combining CL with qualitative inquiries, the study highlights the benefits of triangulation and cross-fertilization of methods that are typically used in isolation. The focus corpus, utilized for identifying keywords and major thematic groups, consists of excerpts from Buttigieg’s political speeches and interviews. Furthermore, the study employs Co-cultural theory to examine the communicative strategies used by Buttigieg in his LGBTQ+-specific political discourses. Buttigieg’s strategies include Emphasizing Commonalities, Mirroring, Communicating Self, Dispelling Stereotypes, Dissociating, and Increasing Visibility, each representing different approaches to identity construction through language. In addition to shedding light on the unique aspects of gay identity construction in political discourse, this research contributes to a better understanding of the electorate’s dissatisfaction with Buttigieg’s campaign, especially among non-heteronormative individuals.
Thai transgender people’s English articulation in intercultural communication
Authors: Pan Zhaoyi 
Published: February 2025

Abstract
This research used online focus group discussions involving five Thai transgender participants and participants
with various gender identities and sexuality to examine Thai transgender people’s articulations of gender, sexuality and senses of
themselves. English was used as a lingua franca (ELF). A poststructuralist discourse analysis was used. The results illustrated
that most Thai transgender participants were willing to articulate their genders and sexuality in a friendly and polite
environment in intercultural communication. However, individual differences were found while initially articulating gender and
sexuality over time in the same group discussion. In addition, the friendly and polite situational environment could trigger them
to articulate more information regarding their gender and sexuality. Moreover, the five Thai transgender participants revealed
their powerfulness as the self-identification of Thai transgender people in discourses, whereas their powerlessness was exposed in
the theme of mental and social care.
Centering the margins
Authors: Ogungbemi Olarotimi 
Published: February 2025

Abstract
Until recently, queer sexuality has been on the periphery of African literary imaginations. Studies on queer
sexuality have paid attention to its representations on social media, Nollywood movies, and the Nigerian print media, with scarce
attention to how contemporary literary texts construct queer people’s identity. Therefore, this article presents findings from
Jude Dibia’s Walking with Shadows, drawing attention to how language is co-opted to construct gay identity and
advance rights advocacy. Using Bucholtz and Hall’s Tactics of Intersubjectivity, the article examines Jude Dibia’s Walking with
Shadows, the first coming out novel in Nigeria. The findings reveal that gay people are denied access to the same rights as
heterosexuals in Nigeria and mainly encounter obstacles in the construction of their identity. The study offers insights relevant
to the study of queer sexuality in African literature and contributes to identity politics in sexuality discourse.
On the integrability of extended test body dynamics around black holes
Authors: Ramond Paul 
Published: February 2025

Abstract
In general relativity, the motion of an extended test body is influenced by its proper rotation, or spin. We present a covariant and physically self-consistent Hamiltonian framework to study this motion, up to quadratic order in the body’s spin, including a spin-induced quadrupole, and in an arbitrary background spacetime. The choice of spin supplementary condition and degeneracies associated with local Lorentz invariance are treated rigorously with adapted tools from Hamiltonian mechanics. Applying the formalism to a background space- time described by the Kerr metric, we prove that the motion of any test compact object around a rotating black hole defines an integrable Hamiltonian system to linear order in the body’s spin. Moreover, this integrability still holds at quadratic order in spin when the compact object has the deformability expected for an isolated black hole. By exploiting the unique symmetries at play in black hole binaries, our analytical results clarify longstanding numerical conjectures regarding spin-induced chaos in the motion of asymmetric compact binaries, and may provide a powerful framework to improve current gravitational waveform modelling.
Rotating machinery structural faults feature enhancement and diagnosis base on low-pass Teager energy operator intrinsic time-scale decomposition
Authors: Song Xuewei , Huang Zhende , Liang Guanlong , Niu Jinzhang , Jia Baozhu , Liao Zhiqiang 
Published: February 2025

Abstract
Aiming to address the issue of the complex and harsh working environment of rotating machinery, the features of vibration signals associated with structural faults are often obscured by noise, resulting in low accuracy in fault diagnosis. This paper proposes a method for feature enhancement and diagnosis of rotating machinery structural faults, which combines the low-pass Teager energy operator intrinsic time-scale decomposition (LTEO-ITD) recurrence plot (RP) with the ResNet18 network. Firstly, the low-frequency components of the vibration signal are extracted and enhanced using the LTEO. The method effectively suppresses noise interference and enhances fault features. Then, the fault features are extracted using ITD. The component that contains the highest number of fault features is selected based on kurtosis analysis, followed by the generation of the corresponding RP. Finally, the data is input into the ResNet18 network for diagnostic verification. The effectiveness and feasibility of the proposed method are verified through vibration signals from the rotating machinery experimental platform and the comprehensive rotating machinery experimental platform. The proposed method achieves a diagnostic accuracy of 100% on both datasets. The comparative validation was conducted using five distinct image encoding methods. The experimental results show that the proposed method effectively extracts fault features of structural faults, thereby enhancing the accuracy of fault diagnosis.
Resilient stellarator divertor characteristics in the Helically Symmetric eXperiment
Authors: Garcia K A , Bader A , Boeyaert D , Boozer A H , Frerichs H , Gerard M J , Punjabi A , Schmitz O 
Published: February 2025

Abstract
Resilient divertor features connected to open chaotic edge structures in the Helically Symmetric eXperiment are investigated. For the first time, an expanded vessel wall was considered that would give space for implementation of a physical divertor target structure. The analysis was done for four different magnetic configurations with very different chaotic plasma edges. A resilient plasma wall interaction pattern was identified across all configurations. This manifests as qualitatively very similar footprint behavior across the different plasma equilibria. Overall, the resilient field lines of interest with high connection length LC
lie within a helical band along the wall for all configurations. This resiliency can be used to identify the best location of a divertor. The details of the magnetic footprint’s resilient helical band is subject to specific field line structures which are linked to the penetration depth of field lines into the plasma and directly influence the heat and particle flux patterns. The differences arising from these details are characterized by introducing a new metric, the minimum radial connection min

(

δ
N

)

of a field line from the last closed flux surface. The relationship, namely the deviation from a scaling law, between min

(

δ
N

)

and LC
of the field lines in the plasma edge field line behavior suggests that the field lines are associated with structures such as resonant islands, cantori, and turnstiles. This helps determine the relevant magnetic flux channels based on the radial location of these chaotic edge structures and the divertor target footprint. These details will need to be taken into account for resilient divertor design.
Preparing ground and excited states using adiabatic CoVaR
Authors: Hwang Wooseop , Koczor Bálint 
Published: February 2025

Abstract
CoVariance Root finding with classical shadows (CoVaR) was recently introduced as a new paradigm for training variational quantum circuits. Common approaches, such as variants of the variational quantum eigensolver, aim to optimise a non-linear classical cost function and thus suffer from, e.g. poor local minima, high shot requirements and barren plateaus. In contrast, CoVaR fully exploits powerful classical shadows and finds joint roots of a very large number of covariances using only a logarithmic number of shots and linearly scaling classical computing resources. As a result, CoVaR has been demonstrated to be particularly robust against local traps, however, its main limitation has been that it requires a sufficiently good initial state. We address this limitation by introducing an adiabatic morphing of the target Hamiltonian and demonstrate in a broad range of application examples that CoVaR can successfully prepare eigenstates of the target Hamiltonian when no initial warm start is known. CoVaR succeeds even when Hamiltonian energy gaps are very small—this is in stark contrast to adiabatic evolution and phase estimation algorithms where circuit depths scale inversely with the Hamiltonian energy gaps. On the other hand, when the energy gaps are relatively small then adiabatic CoVaR may converge to higher excited states as opposed to a targeted specific low-lying state. Nevertheless, we exploit this feature of adiabatic CoVaR and demonstrate that it can be used to map out the low lying spectrum of a Hamiltonian which can be useful in practical applications, such as estimating thermal properties or in high-energy physics.
Wide index optical fiber sensor based on localized surface plasmon resonance
Authors: Li Weigang , Shen Tao , Feng Yue , Liu Chi , Liu Xin 
Published: February 2025

Abstract
A wide refractive index (RI) photonic crystal fiber (PCF) sensor based on localized surface plasmon resonance (LSPR) was used to detect the RI of unknown analytes, and the modified sensor was numerically analyzed. The design features a D-type fiber structure with gold nanorods as the sensing layer, which enhances the mode matching between the core mode and the plasmon, thereby effectively promoting the LSPR effect. The results of the full-vector finite element method (FEM) analysis present that the displacement of core mode constraint loss peak is more obvious in Y-polarized mode. The wavelength sensitivity and figure of merit (FOM) are used to better and more accurately evaluate and analyze the output characteristics of the sensor. The results present that the sensor has a maximum wavelength sensitivity (WS) of 26,000nm RIU−1, a resolution of 3.85 × 10−6 RIU, a maximum FOM of 123.6, a sensor RI range of 1.02 ∼ 1.39, and excellent transmission characteristics. The sensor has a simple structure and low cost, and its wide RI range has great application potential in molecular biology detection, environmental pollution detection, food safety detection, and drug research.
Towards Optimization and Assessment of the Chinese New-generation VLBI Network for Earth Orientation Parameters Monitoring
Authors: Xiang Hao , Zhang Zhong-Kai , Du Lan , Liu Ze-Jun , Wang Xu-Qiao 
Published: February 2025

Abstract
The Earth Orientation Parameters (EOP) provide a time-varying transition relationship between the International Terrestrial Reference Frame and the International Celestial Reference Frame. To support deep space exploration and the Beidou Navigation Satellite System, the Chinese New-generation Very Long Baseline Interferometry Network (CNVN) is under construction for independent monitoring of the EOP. This paper evaluates the performance of existing 4-antenna CNVN through a batch generated observation schedules followed by extensive Monte Carlo simulations. The optimal positions of the fifth and sixth antennas of CNVN are found from 24 hypothetical antenna positions uniformly distributed in China. In this process, the weighted parameters are optimized, which not only reduce the possibility of large error of EOP estimation accuracy due to unreasonable combination, but also greatly reduce the calculation cost.