bluuebunny/crossref_metadata_2025_split huggingface dataset:
Percutaneous Image-Guided Cryoablation of Metastatic Colorectal Adenocarcinoma to the Abdominal Wall
Authors: Drogin Jillian , Abdelbaki Ahmed , Lendermon Justin , Pereira Keith , Mendez-Castillo Alejandro 
Published: March 2023

AbstractAbdominal wall metastases are rarely seen in primary colorectal cancer; the majority of cases are attributed to seeding from previous procedures. We report a case of percutaneous cryoablation of metastatic colorectal cancer to the abdominal wall with no evidence of recurrence 1 year later.
Understanding family takaful purchase behaviour: the roles of religious obligation and gender
Authors: Maduku Daniel K. , Mbeya Steven 
Published: March 2023

AbstractTakaful is an important and major segment of the finance industry that is poised for growth. Understanding the factors that influence Muslim consumers’ purchasing behaviour is crucial to accelerate the growth in the family takaful market segment. However, research has yet to adequately address the drivers of family takaful purchase behaviour. By integrating religious obligation into the theory of planned behaviour, this study proposed and tested a model of the factors underlying family takaful purchasing behaviour, and further examined the moderating impact of gender. The findings show that Muslim consumers’ intentions to purchase family takaful are influenced by attitude and subjective norm, and purchasing behaviour is influenced by intention and perceived behavioural control. Although religious obligation affects attitude, subjective norm, and perceived behavioural control, its influence on family takaful purchasing intention and purchasing behaviour is not supported. These findings differ across male and female groups, emphasising the centrality of gender as a moderator and a boundary condition in the relationships posited in the model. The findings have various theoretical and managerial implications which are highlighted.
Appropriating the civil sphere: the construction of German collective identity by right-wing populist actors during the Covid-19 pandemic
Authors: Zavershinskaia Polina 
Published: March 2023

AbstractThis paper considers the impact of the Covid-19 pandemic on right-wing populists’ constructions of German collective identity. In their “Covid-19 crisis” narratives, German populists attempted to rearrange the discursive and institutional space of the German civil sphere through a symbolic inversion of the heroic signifier and legitimization of violence against perceived enemies. To analyze such discursive dynamics, this paper utilizes multilayered narrative analysis, drawing on the synthesis of civil sphere theory, the anthropological conceptualization of the relationship between mimetic crisis and symbolic substitution of violence and the sociological narrative theory of the sacralization and desacralization of heroism. This analysis structures the investigation of positive and negative symbolic constructions of German collective identity by German right-wing populist narratives. The analysis shows that although German right-wing populists are politically peripheral, their affective, antagonistic and anti-elite narratives contribute to the semantic erosion of the liberal democratic core of the German civil sphere. This in turn reduces the ability of democratic institutions to control violence and leads to the restriction of civil solidarity.
Comparison of different predictive models and their effectiveness in sunspot number prediction
Authors: Moustafa Sayed S R , Khodairy Sara S 
Published: March 2023

Abstract
Human activities and health are significantly influenced by solar activity. The sunspot number is one of the most commonly used measures of solar activity. The solar cycle’s quasi-periodic nature makes it an excellent choice for time series forecasting. Four models include three singular models, consisting of Long Short-Term Memory (LSTM), AutoRegressive Integrated Moving Average (ARIMA), and Seasonal AutoRegressive Integrated Moving Average (SARIMA), as well as a hybrid model were implemented to forecast maximum sunspot number of cycles 25 and 26. The hyperparameters of the singular models were optimized using Bayesian optimization. The LSTM-ARIMA hybrid model was able to achieve the best performance. The outstanding results of the LSTM-ARIMA model shows the potential of hybrid methods in improving the overall performance. Moreover, the LSTM model was able to outperform the ARIMA model, which demonstrates the ability of LSTM networks in learning from time-series data. The final model forecasts a peak sunspot number of 137.04 for Solar Cycle 25 in September 2024 and 164.3 for Solar Cycle 26 in December 2034, which is comparable to the National Aeronautics and Space Administration’s (NASA) prediction of 134.4 in October 2024 and 161.2 in December 2034.
Cascaded two-stage optical regenerator based on four wave mixing in highly nonlinear fiber.
Authors: Rozali M A N , Dziauddin A H A , Yaakob S , Zamzuri A K 
Published: March 2023

Abstract
This work focuses on the effectiveness of using four-wave mixing (FWM) in restoring the corrupted signal as well as the factors that affect the quality of the data. The method was based on the two-stage FWM-based optical wavelength converter designed using a OptiSystem version 18.0. The signal regeneration for both stages has taken place in the highly nonlinear fiber (HNLF) having length of 1.0 km and 0.8 km respectively. The first stage is to convert and restore a signal carrying NRZ formatted data at 1552 nm into a new wavelength of 1548 nm. While the second stage is to transfer the data back into the original wavelength of 1552 nm. It has been found that the quality of the data (Q-factor) is affected by the power of modulated signal (1552 nm) as well as the power of unmodulated pump source (1550 nm). The maximum Q-factor of 29.6 at 6 dBm signal power and of 35.7 at 16 dBm pump power have been achieved here. The wavelength spacing between those two sources also affect the quality of regenerated signal. The optimum quality value is found to be above 25 when the spacing is 1 nm regardless of the signal and pump power values.
Glucose and sucrose analysis in daucus carota extract using optical tapered fibre sensor with GOU-AuNP composite layer synthesization
Authors: Daud Suzairi , Bakhtiar Hazri , Zaini Muhammad Ilham Ahmad , Noorden Ahmad Fakhrurrazi Ahmad , Aziz Muhammad Safwan Abd , Krishnan Ganesan , Kadir Muhammad Zamzuri Abdul 
Published: March 2023

Abstract
Tapered single-mode fibre (SMF) immobilized with glucose oxidase enzyme (GOD) and gold nanoparticles (AuNP) for the recognition of glucose and sucrose elements have been proposed. A tapered fibre was fabricated using a flame heating technique to improve the sensitivity of the fibre-based sensor. By taking advantage of amine groups in 3-aminopropyl triethoxysilane (APTES), GOD and AuNP are functionalized onto the tapered region of SMF through covalent interaction. The developments of the immobilized tapered fibre sensor for the analysis of glucose and sucrose concentration in different concentrations of the solution and types of carrots extracts were discussed in this paper. The solution concentrations of 0.1, 0.2, and 0.3 g/ml of glucose and sucrose were used to analyze the sensitivity of the fibre sensor. The extracts of baby carrots, imported carrots, and organic carrots were used to determine the existence of glucose and sucrose in these carrots. We demonstrated the sensitivities of GOD-immobilized fibre for 0.00672, 0.00722, 0.00902, and 0.00921 a.u/nm in terms of their glucose solutions, baby carrots, imported carrots, and organic carrots, respectively. Meanwhile, the sensitivities of AuNP-immobilized fibre were found to be 0.000030, 0.000026, 0.000012, and 0.000024 a.u/nm, respectively.
Tapered optical fibers using CO2 laser and their sensing performances
Authors: Hidayat N , Aziz M S , Krishnan G , Johari A R , Nur H , Taufiq A , Mufti N , Mukti R R , Bakhtiar H 
Published: March 2023

Abstract
In this paper, we proposed a simple tapering process of optical fibers using controlled CO2 laser. This is a response to the call for the rapid development of affordable, efficient, and reliable optical sensors. A laser with power of 36 W was focused on a small section of three optical fibers having core/cladding diameters in micrometer of 10/125 (sensor A), 62.5/125 (sensor B), and 200/225 (sensor C). The sensors were tested on solutions having refractive indices of 1.3325 to 1.4266. Our investigation revealed that sensor C offered highest sensitivity. Therefore, further characterizations on its sensing characteristics were conducted. Over 6 times repetitive measurement, sensor C showed excellent repeatability with average sensitivity and detection limit of 4.5941(78) a.u./RIU and 3.97 × 10−4 RIU, respectively. The tapered large core fiber also had good reversibility. Furthermore, the stability test by applying sensor C to solutions with low, medium, and high refractive indices also showed that the sensor was relatively stable. Within 60 minutes measurement, we noticed increasing trends of normalized intensities. However, the intensity increment percentages were relatively small, i.e., 0.27%, 1.17%, and 1.75% respectively for refractive indices of 1.3325, 1.3921, and 1.4266. Thus, excellent tapered optical fiber sensor could be produced using CO2 laser.
Multimode interference self-imaging optical fiber sensor based on sol-gel silica for methane detection
Authors: Zain Muhamad Fairul Izwan bin Mat , Husein Nor Ain Binti 
Published: March 2023

Abstract
We reported a multimode interference (MMI) sensor based on single mode fiber-no core fiber-single mode fiber (SMF-NCF-SMF) structure incorporated with silica sol-gel nanostructure for detection of methane. Due to the core mismatch between SMF and NCF, a number of higher order modes was excited at the NCF region and recoupled back to the fundamental mode of SMF lead-out which resulted in multimode interference self-imaging. Deposition of silica sol-gel nanostructure formed the hybrid waveguide whose optical property changes according to the surrounding perturbation. The effect of silica coating upon its thickness was clearly demonstrated which can enhance the sensitivity of the sensor. As the concentration of methane varies, the effective refractive index of the waveguide also changes, hence introducing the resonant dip shifts in the transmission spectrum. The sensitivity achieved was 7.92 nm/% for 8-layers of coating, 5.47 nm/% 4-layers of coating, and 0.5 nm/% for uncoated sensor. In addition, the proposed sensor also exhibits good linear response within 0 - 0.175 % of methane concentration while the test of reproducibility confirmed the sensing stability of the sensor.
Photocatalytic degradation of rhodamine B dye under visible light using cerium-cobalt co-doped bismuth ferrite nanoparticles
Authors: Jamaludin N , Razak N A A , Ismail F D , Chaudhary K T 
Published: March 2023

Abstract
The present study designates the photocatalytic degradation efficiency of RhB dye using cerium-cobalt co-doped BiFeO3 nanoparticles. Nanoparticles of Ce0.1CoxBi1-xFe2O3 (0 ≤ x ≤ 0.2) have been facilely synthesized via sol-gel auto-combustion method. FESEM analysis revealed the irregular-shaped nanoparticles with agglomerated coalescence behaviour and the element composition in Ce0.1CoxBi1-xFe2O3 (0 ≤ x ≤ 0.2) was confirmed in EDX. The crystallite size can be calculated around 64 nm to 71 nm for pure BiFeO3 nanoparticles and in range of 41 nm to 60 nm for the co-doped BiFeO3 nanoparticles. XRD diffraction confirmed the presence of secondary phase (Sillenite) and tertiary phase (Millate) when dopant concentration increased. From TGA profile, the ideal annealing temperature of 600 °C have been confirmed for all samples. Furthermore, the photocatalytic degradation of RhB dye has been improved via cerium-cobalt co-doping. UV spectra showed that the RhB dye solution constantly changes pink colour into colourless within 20 minutes of visible light irradiation to fully degraded.
Dual-tapered Mach Zehnder Interferometer for Dual-wavelength Q-Switched YDFL using Molybdenum Diselenide
Authors: Salim Muhammad Aizi Mat , Ahmad Harith , Bakhtiar Hazri , Bidin Noriah , Jin Wong Yah 
Published: March 2023

Abstract
A dual-wavelength Q-switched YDFL by utilizing MoSe2 thin film was successfully achieved in cavity ring. The dual synchronous wavelength output spectrum centered at 1035.8nm to 1040.2nm was achieved with repetition rate of 15.3 kHz to 35.2 kHz. Moreover, the maximum pulse energy was 2.8nJ and minimum pulse width was 1.8µs. In this paper, MoSe2 thin film capabilities as saturable absorber in 1-micron region was successfully achieved. Thus pave a new insight of transition metal chalcogenides (TMD) based photonics device.
Effect of increasing etching time on the efficiency of porous silicon solar cells
Authors: Khalifa Manal J 
Published: March 2023

Abstract
In this work, p-type silicon wafers were electrochemically etched to create nanocrystalline silicon (porous silicon (PS)) films. Different etching periods (5, 10, 15, and 20 minutes) were investigated to see how they affected the development of a nanosized pore array with a constant etching current density (10 mA/cm2). To prevent oxidation, PS samples were stored in methanol after preparation. PS is characterized by X-ray diffraction (XRD), and atomic force microscopy (AFM). At varied etching times (5, 10, 15, and 20 min), the crystallite size as determined by XRD was equal to (66.39, 88.13, 31.2, and 21.21) nm, respectively. The nanometric size was verified via AFM. The porosity of PS increased as the etching time increased; the maximum value was obtained at a 20-minute etching time. The C-V characteristic of PS/Si heterojunction describes control factors like built-in potential (Vbi) and the kind of connection, a linear relationship of 1/C2 with bias voltage indicating that the junction is an abrupt type. Vbi was calculated for PS/p-Si/Al heterojunction at different etching times, and it was between (1.1-1.8) volt. I-V characteristics under illumination showed an enhancement in the efficiency of the PS/Si/Al solar cells. The maximum value of the solar cell efficiency was 6.79% occurs at 15 min time of etching.
Kaon physics overview
Authors: Aebischer Jason 
Published: March 2023

Abstract
The present status of Kaon physics is summarized from a theory point of view. Focus is laid on ΔS = 2, ΔS = 1 as well as on rare Kaon decays, where progress has been made for instance in the case of εK
and KS
→ μ
+
μ
− Furthermore, several New Physics scenarios are discussed in the context of rare Kaon decays and other Kaon observables.
Covariant flavour effects in semileptonic K and D decay
Authors: Košnik Nejc 
Published: March 2023

Abstract
We present constraints on the left-handed dimension-6 interactions that lead to semileptonic and leptonic decays of K, D mesons. We employ the flavour covariant description of the effective couplings, identify universal CP phases of New Physics and derive constraints from decay rates and CP-odd quantities. As a result, we can predict the maximal effects of such flavoured NP in D decays from stringent K decay constraints and vice-versa.
Kaonic atoms measurements with SIDDHARTA-2
Authors: Sgaramella F. , Bazzi M. , Bosnar D. , Bragadireanu M. , Cargnelli M. , Carminati M. , Clozza A. , Deda G. , Del Grande R. , De Paolis L. , Dulski K. , Fabbietti L. , Fiorini C. , Friščić I. , Guaraldo C. , Iliescu M. , Iwasaki M. , Khreptak A. , Manti S. , Marton J. , Miliucci M. , Moskal P. , Napolitano F. , Niedźwiecki S. , Ohnishi H. , Piscicchia K. , Sada Y. , Scordo A. , Shi H. , Silarski M. , Sirghi D. , Sirghi F. , Skurzok M. , Spallone A. , Toho K. , Tüchler M. , Yoshida C. , Zmeskal J. , Curceanu C. 
Published: March 2023

Abstract
The SIDDHARTA-2 collaboration is aiming to perform the challenging measurement of kaonic deuterium X-ray transitions to the ground state. This will allow to extract the isospin-dependent antikaon-nucleon scattering lengths, providing input to the theory of Quantum Chromodynamics (QCD) in the non-perturbative regime with strangeness. This work describes the SIDDHARTA-2 experimental apparatus and presents the results obtained during the commissioning phase realized with kaonic helium measurements. In particular, the first observation of the kaonic helium transitions to the 3s level (M-lines), reported in this work, represents a new source of information to study the kaonic helium cascade process and demonstrates the potential of the SIDDHARTA-2 apparatus, in the view of the ambitious kaonic deuterium measurement.
Can future observation of the living partner post-tag the past decayed state in entangled neutral K-mesons?
Authors: Domenico Antonio Di 
Published: March 2023

Abstract
Novel quantum phenomena have been recently discussed [1] in association to a peculiar time correlation between entangled neutral kaons produced at a ϕ-factory: the past state of the first decayed kaon, when it was still entangled before its decay, is post-tagged by the result and the time of the future observation on the other kan decay. This surprising “from future to past” effect is fully observable and leads to the unique experimental tag of the KS state, an unsolved problem since the discovery of CP violation. The first preliminary results obtained on the analysis of data collected by the KLOE experiment at the DAΦNE collider, and showing experimental evidence of this new effect are presented.
Light new particles at the kaon experiments
Authors: Tobioka Kohsaku 
Published: March 2023

Abstract
Feebly interacting light particles are an attractive addition to the SM because they appear in the broad context of new physics models that address significant issues of the standard model. Searches for the light particles using kaons benefit from their small total decay widths and the availability of enormous datasets. Recently, the comprehensive studies that connect experimental probes with theoretical models in Ref. [1]. In this presentation, we overview the reference and highlight a few examples.
Some Theoretical Aspects of Searches for Heavy Neutrino Emission in Kaon Decays
Authors: Shrock Robert 
Published: March 2023

Abstract
Searches for heavy neutrino emission in K
+ → e
+
νe
and K
+ → μ
+
νµ
decays have provided very powerful constraints on sterile neutrinos and their mixings. In this talk at Kaon-2022 we discuss theoretical aspects of these searches and remark on recent experimental progress.
KOTO II at J-PARC : toward measurement of the branching ratio of

KL→π0νν¯
Authors: Nanjo Hajime 
Published: March 2023

Abstract
The KOTO II experiment at J-PARC is a next-generation experiment that is under design aiming at the measurement of the branching ratio of the

K
L

→

π
0

ν

ν
¯

decay. The KOTO II experiment is planned in the extended Hadron Experimental Facility at J-PARC using the second production target. With the second production target, the KL
extraction angle of 5 degrees is chosen instead of 16 degrees in order to obtain a larger KL
flux and harder KL
momentum spectrum while keeping the same ratio of neutron and KL
fluxes. To realize the extraction angle, the KOTO II detector is behind the primary beam dump. The KOTO II detector has a longer decay volume and a larger calorimeter to achieve a larger decay probability and higher acceptance of the KL
decay. With the designed beam line and the detector, 40 signal events are expected for the branching ratio of 3×10−11 with 60 background events in the running period of 3 × 107 s, which corresponds to approximately 5-σ discovery of the decay.
Hadron shower background in KOTO 2019 - 2021 data
Authors: Kotera Katsushige 
Published: March 2023

Abstract
One of the keys for the

K
L

→

π
0

ν

ν
¯

search of KOTO experiment is to suppress the backgrounds caused by hadron showers in CsI calorimeter. We developed three methods to discriminate the hadron showers from gamma showers. The methods use 1) pulse shape of signals, 2) shower shape on the calorimeter, and 3) depth of the showers in the calorimeter. We report on the discrimination power of these methods. The performance of the third method remained the same even if the dark current of silicon photomultipliers increased by a factor of 85 due to irradiation.
Data Acquisition Upgrade at KOTO
Authors: Redeker Joseph 
Published: March 2023

Abstract
KOTO is building a new data acquisition system which is a pyramid style architecture, composed of all new homemade optical fiber centers modules with high-speed ports that gather and build the event from over 4000 channels. It will be able to handle up to 30,000 triggers per second with minimal loss in the near future, which is a factor of six more than current rates. This will allow KOTO to handle a higher intensity KL
beam, as well as open up the possibility of adding new physics triggers such as one for KL
→ π
0
e
+
e
−. Additionally, the new architecture simplifies our data handling and allows for greater flexibility in adding late level trigger conditions since the event building is done before the data is sent to the server. This system is robust, flexible and easily scalable in the future and provides a foundation for moving forward to KOTO II.
Research on Beam Allocation of Millimeter Wave Massive MIMO based on Matching Game
Authors: Huang Xuan , Liu Haoran , Liu Xuanhui , Wang Xiaoqi , Zhao Yifeng 
Published: March 2023

Abstract
As one of the most promising critical technologies for realizing 5G networks, mmWave communication technology has received more and more attention and research. At the same time, due to the integration and symbiosis of mmWave communication, massive MIMO, and ultra-dense network, recent organizations have also jointly proposed the rational introduction of these three technologies in mobile communication systems to improve spectrum efficiency and energy efficiency in 5G. This paper focuses on a single-cell multi-user mmWave massive MIMO system. To optimize the total data rate, we propose a beam allocation algorithm based on a one-to-one matching game under the condition that the number of RF chains is less than the number of users. The simulation results show that the proposed algorithm obtains almost the same performance as the exhaustive method on the premise that the algorithm complexity is lower than the thorough method.
Performance Analysis of NOMA Transmission Systems Based on OTFS
Authors: Fan Yuxiang 
Published: March 2023

Abstract
Orthogonal time frequency space (OTFS) and non-orthogonal multiple-access (NOMA) are both wireless transmission technologies suitable for high-speed scenarios. This paper proposes a cross-domain transmission scheme combining OTFS and NOMA applicable to the Internet of vehicles. We establish a channel model of cross-domain transmission. Based on the downlink, we deduce the expression for the SINR of the transmitted signal. We simulate and analyze the spectrum efficiency and other performance from the perspective of the system level. At last, we make a comparison between the OTFS-based NOMA system and the OFDM-based NOMA system. Numerical results manifest that OTFS-NOMA has better performance in terms of outage spectrum efficiency.
Unmanned aerial vehicle power system performance test platform design
Authors: Guo Wenmin , Bawudong Yibulayin 
Published: March 2023

Abstract
To achieve high-frequency and high-precision measurement of the performance of the UAV power system, a set of devices that can realize tensile and torque decoupling tests were designed and built, and a design scheme for the UAV power test was given. On this basis, the design of the data acquisition system and signal conditioning system with the data acquisition board as the core and the development of LabVIEW test software were completed. Finally, the debugging test of each system verified the functions of tensile force, torque separation measurement, data acquisition, host computer display, preservation, etc. It realized the high-frequency and high-precision measurement of the performance of the UAV power system. . The test results showed that the output signal of the test bench was highly linear, and the repeatability was good.