bluuebunny/crossref_metadata_2025_split huggingface dataset:
Treasure Hunt as a Method of Learning Mathematics
Authors: Mikulić Crnković Vedrana , Traunkar Ivona , Crnković Bojan 
Published: October 2022

Future jobs will require students to handle interdisciplinary knowledge that goes beyond computing techniques when it comes to mathematics education. The traditional approach to education insufficiently develops the needed mathematical skills and mathematical literacy and there is a need to devise new methods of teaching and learning. We introduce game-based learning in mathematics education through carefully designed activities aiming at interdisciplinarity and increasing students’ motivation, mathematical and digital literacy, physical activity, level of knowledge, etc. We propose the treasure hunt cantered around cryptography as an example activity that satisfies the described criteria. Parts of the clues leading to the treasure are hidden using different ciphers, following the historical development of cryptography. The treasure hunt is time-limited to one hour and, to successfully complete the search, students need to learn, adapt, and apply different methods of encryption and decryption. To complete the hunt in time, students must work as a team and effectively divide the tasks among themselves. Students have at their disposal all instructions and manuals in written form, and they are compelled to read with comprehension. We conducted the activity with several groups of high school students with no previous knowledge and skills in the field of cryptography. Students were asked to take a pre-test and post-test survey about their experience and familiarity with cryptography concepts. Most teams completed the search and achieved all learning outcomes. In the paper, we will describe the activity in detail, analyse the test results and give additional examples of game-based activities in mathematics education.
UPAYA MENURUNKAN KADAR KOLESTROL PADA LANSIA MELALUI PEMBERIAN AIR REBUSAN DAUN KARSEN
Authors: Wahyuni Sry , Wahab Masyitah , Fitriani Lina 
Published: October 2022

Kolesterol darah yang tinggi, dapat berakibat serius bagi kesehatan individu. Seseorang dengan risiko tinggi kolesterol darah hingga 200 mg/dL berisiko tinggi mengalami gangguan kesehatan. Semakin tinggi kadar kolesterol, semakin tinggi risiko jantung dan pembuluh darah. Daun kersen (m. calabura l.) diketahui mengandung flavonoid, triterpenoid, saponin, dan steroid. Saponin efektif dalam peningkatan sekresi, flavonoid menyebabkan pengurangi transfusi HMG-CoA ke mevalonat, mengakibatkan efektif terhadap sintesis kolesterol. Penelitian ini bertujuan untuk membuktikan efektifitas air rebusan karsen terhadap kadar kolesterol pada lansia. Oleh karena itu fokus dalam pengabdian ini wilayah kerja Puskesmas Wonomulyo dapat mendukung kegiatan ini dengan memberikan air rebusan daun karsen kepada penderita kolestrol. kegiatan pengabdian ini menggunakan metode pretest dan posttes dengan pendidikan kesehatan tentang kolestrol. Hasil dari pengabdian ini adalah lansia dapat menggunakan air rebusan daun karsen dalam menurunkan kolestrol. Perawat dan kader posyandu lansia mampu berkomunikasi dan dan memeberikan informasi kepada lansia penderita kolestrol.
Поняття метафізики та його інтерпретація у М. Гайдеґґера
Authors: Pasitschnyk Ihor 
Published: October 2022

Поняття метафізики від початку є проблемою: викинувши у 1 ст. до н.е. як випадкова робоча назва для позначення текстів, написаних трьома століттями раніше, утвердившись у схоластиці, а тоді набувши особливої ваги у філософії XVII–XVIII ст. – вже з ХІХ ст. воно стає також синонімом ненауковості та безглуздості. Останнє значною мірою є результатом поверхового розуміння того, що таке метафізика, але також – на ґрунтовному рівні – результатом серйозних спроб перегляду уявлення про людину як animal rationale. Однією з найпомітніших з них є філософія Мартіна Гайдеґґера. Метою статті є дослідження Гайдеґґерової інтерпретації поняття метафізики у ширшому історичному контексті цього поняття. Перша частина статті окреслює проблему поняття метафізики загалом. У другій здійснюється реконструкція Гайдеґґерового аналізу поняття метафізики у його історичному контексті. Третя частина аналізує Гайдеґґерове власне використання терміна “метафізика”. І остання частина статті дискутує самé Гайдеґґерове тлумачення метафізики як проблему.
Magnetic phase diagram and vanishing topological Hall effect in the chiral antiferromagnet Co2−x
Pd
x
Mo3N
Authors: Qiang Bowen , Fukasawa Takeru , Hajiri Tetsuya , Ito Takahiro , Hihara Takehiko , Asano Hidefumi 
Published: October 2022

Abstract
The magnetic phase diagram and topological Hall effect (THE) are studied by magnetization and transport measurements for chiral antiferromagnet (AFM) Co2-x
Pd
x
Mo3N (

x

= 0–1.61) thin films with the filled β-Mn-type chiral structure, which reveals the rich phase diagram in the temperature versus Pd content x plane, where a collinear AFM, a canted AFM, and a low-temperature phase below 50 K are found to exist. For thin films with

x

= 1.01–1.61, the low-temperature phase shows prominent THE. The formation of the canted AFM phase with the Néel temperature up to 325 K is observed with vanishing THE. These findings establish the chiral antiferromagnetic molybdenum nitrides as a fertile playground for exploring the interplay between chiral antiferromagnetism, topological spin textures, and novel magnetotransport phenomena.
Model Generalizability Investigation for GFCE-MRI Synthesis in NPC Radiotherapy Using Multi-institutional Patient-based Data Normalization
Authors: Li Wen , Lam Saikit , Li Tian , Kleesiek Jens , Cheung Andy Lai-Yin , Sun Ying , Lee Francis Kar-ho , Au Kwok-hung , Lee Victor Ho Fun , Cai Jing 
Published: October 2022

<p>In this study, we aimed at investigating generalizability of GFCE-MRI model using data from seven institutions by manipulating heterogeneity of training MRI data under two popular normalization approaches. A multimodality-guided synergistic neural network (MMgSN-Net) was applied to map from T1-weighted and T2-weighted MRI to contrast-enhanced MRI (CE-MRI) for GFCE-MRI synthesis in patients with nasopharyngeal carcinoma. MRI data from three institutions were used separately to generate three uni-institution models and jointly for a tri-institution model. Min-Max and Z-Score were applied for data normalization of each model. MRI data from the remaining four institutions served as external cohorts for model generalizability assessment. Quality of GFCE-MRI was quantitatively evaluated against ground-truth CE-MRI using mean absolute error (MAE) and peak signal-to-noise ratio (PSNR). Results showed that performance of all uni-institution models remarkably dropped on the external cohorts. By contrast, model trained using multi-institutional data with Z-Score normalization yielded significantly improved model generalizability </p>
Short Packet Communication Over Two-user Rayleigh Fading Z-Interference Channel Under Bursty Traffic
Authors: Kumar J Deeraj , Mohapatra Parthajit , Pappas Nikolaos 
Published: October 2022

<p>One of the fundamental challenges in 5G and beyond technologies is to support short packet transmissions while ensuring ultra-reliable and low latency communication. Due to the distributed nature of the network, interference is almost unavoidable in most of the emerging communication scenarios. In addition to this, data arrival at the users is bursty in nature. The performance of various interference mitigation techniques for short packet communication under bursty traffic is not well understood from the existing literature. To address these issues this work considers the problem of short packet communication over two-user Rayleigh fading Z-interference channel (Z-IC) under random arrival of data at the users. The work characterizes the stability region of the 2-user Z-IC which takes account of random arrival of data at the users. The evaluation of the stability region involves determination of probability of successful decoding for the various interference mitigation techniques such as joint decoding and successive interference cancellation. The probabilities of successful decoding are characterized for various interference mitigation techniques using the framework of finite block-length information theory. The developed results take into account the packet length, rate, underlying channel model and random arrival of data at the users. The developed results also help to explore the impact of interference on average delay and average age of information for various interference mitigation techniques. </p>
Two-user Z Interference Channel under Fading: A Finite Block Length Performance Analysis
Authors: Kumar J Deeraj , Mohapatra Parthajit , Pappas Nikolaos 
Published: October 2022

<p>With the advancements in finite block-length information theory, short packet communication has received significant attention in the recent years. When devices are constrained to use short packets for communication in interference limited scenarios, it is important to explore the impact of interference on the performance of the system. In this work, we consider a two-user Rayleigh fading Z-interference channel (Z-IC), where one of the users causes interference. The work obtains closed form expression for the average error and throughput for prominent interference mitigation schemes such as successive interference cancellation and joint decoding using the framework of finite block-length information theory. The developed results take into account the packet length, rate and underlying channel model. However, the average throughput generally does not take random arrival of data at the users into account. To capture this, the stability region is characterized for the considered system model which requires the determination of probability of successful decoding at the receiver. The work also explores the impact of interference on average delay and average age of information (AAoI) for various interference mitigation techniques. The developed results help to explore the interplay between packet length, average delay and AAoI for the considered system model. </p>
The role of agroforestry areas in the potential provision of ecosystem services: the case of the Molise Region.
Authors: Marucci Angelo , Marino Davide , Palmieri Margherita , Pili Silvia 
Published: October 2022

Changes in land use and land cover represent the main cause of the loss of natural capital and the ecosystem services supply. Analyzing the dynamics and impacts of these changes is also important with respect to the implementation of the D.lgs 34/2018, which recognizes ecosystem services generated by forests and identifies payments for ecosystem services as innovative tools for sustainable forest management. mapping, quantification, and economic valuation of ecosystem services. In our study, we analyzed the change in the supply of ecosystem services in relation to land use and land cover dynamics that occurred between 1960 and 2018 in the Molise Region.
To do this type of analysis, we employed a methodology based on the GIS analysis of the agroforestry landscape transformation processes and qualitative matrices of potential supply of ecosystem services linked to land cover. The results obtained could be functional to the prediction of future scenarios and to the identification of adaptive strategies for the mitigation of impacts due to land cover changes at regional and national scales.
Dampak Akuntabilitas, Transparansi Dan Pengawasan Terhadap Pengelolaan Dana Desa
Authors: Sugiharti Chyntia Ambar , Hariani Swarmilah 
Published: October 2022

This study aims to determine the effect of accountability, transparency, and supervision on village fund management. The objects of this study were 10 villages located in Kaloran Subdistrict, Temanggung Regency. This study was conducted on 50 respondents using a quantitative descriptive approach. The results of this study indicate that accountability and transparency have a positive and significant effect on village fund management, while supervision has no significant effect. This study shows that transparency is a crucial factor in fund management, thus, needs to get more attention from stakeholders. The ineffectiveness of supervision shows that the village authorities need to collaborate with government officials and academics to create effective supervisory cooperation.
Aesthetic appeal influences visual search performance
Authors: Reppa Irene , McDougall Siné 
Published: October 2022

AbstractAesthetic appeal of a visual image can influence performance in time-critical tasks, even if it is irrelevant to the task. This series of experiments examined whether aesthetic appeal can act as an object attribute that guides visual search. If appeal enhances the salience of the targets pre-attentively, then appealing icons would lead to more efficient searches than unappealing targets and, conversely, appeal of distractors would reduce search efficiency. Three experiments (N = 112) examined how aesthetic appeal influences performance in a classic visual search task. In each experiment, participants completed 320 visual search trials, with icons varying in rated aesthetic appeal and either visual complexity (Experiments 1 and 2) of concreteness (Experiment 3) among two, four, eight, or 11 distractor icons. While target appeal did not influence search efficiency it sped up search times in all three experiments: appealing targets led to faster response time (RT) than unappealing targets across all experiments, and compared to neutral distractors, appealing distractors slowed search RT down. These findings are the first to show that an object’s aesthetic appeal influences visual search performance.
Task-specific auditory distraction in serial recall and mental arithmetic
Authors: Kattner Florian , Hanl Sarah , Paul Linda , Ellermeier Wolfgang 
Published: October 2022

AbstractPrevious studies suggest that task-irrelevant changing-state sound interferes specifically with the processing of serial order information in the focal task (e.g., serial recall from short-term memory), whereas a deviant sound in the auditory background is supposed to divert central attention, thus producing distraction in various types of cognitive tasks. Much of the evidence for this distinction rests on the observed dissociations in auditory distraction between serial and non-serial short-term memory tasks. In this study, both the changing-state effect and the deviation effect were contrasted between serial digit recall and mental arithmetic tasks. In three experiments (two conducted online), changing-state sound was found to disrupt serial recall, but it did not lead to a general decrement in performance in different mental arithmetic tasks. In contrast, a deviant voice in the stream of irrelevant speech sounds did not cause reliable distraction in serial recall and simple addition/subtraction tasks, but it did disrupt a more demanding mental arithmetic task. Specifically, the evaluation of math equations (multiplication and addition/subtraction), which was combined with a pair-associate memory task to increase the task demand, was found to be susceptible to auditory distraction in participants who did not serially rehearse the pair-associates. Together, the results support the assumption that the interference produced by changing-state sound is highly specific to tasks that require serial-order processing, whereas auditory deviants may cause attentional capture primarily in highly demanding cognitive tasks (e.g., mental arithmetic) that cannot be solved through serial rehearsal.
Radio Analysis of SN2004C Reveals an Unusual CSM Density Profile as a Harbinger of Core Collapse
Authors: DeMarchi Lindsay , Margutti R. , Dittman J. , Brunthaler A. , Milisavljevic D. , Bietenholz Michael F. , Stauffer C. , Brethauer D. , Coppejans D. , Auchettl K. , Alexander K. D. , Kilpatrick C. D. , Bright Joe S. , Kelley L. Z. , Stroh Michael C. , Jacobson-Galán W. V. 
Published: October 2022

Abstract
We present extensive multifrequency Karl G. Jansky Very Large Array (VLA) and Very Long Baseline Array (VLBA) observations of the radio-bright supernova (SN) IIb SN 2004C that span ∼40–2793 days post-explosion. We interpret the temporal evolution of the radio spectral energy distribution in the context of synchrotron self-absorbed emission from the explosion’s forward shock as it expands in the circumstellar medium (CSM) previously sculpted by the mass-loss history of the stellar progenitor. VLBA observations and modeling of the VLA data point to a blastwave with average velocity ∼0.06 c that carries an energy of ≈1049 erg. Our modeling further reveals a flat CSM density profile ρ
CSM ∝ R
−0.03±0.22 up to a break radius R
br ≈ (1.96 ± 0.10) × 1016 cm, with a steep density gradient following ρ
CSM ∝ R
−2.3±0.5 at larger radii. We infer that the flat part of the density profile corresponds to a CSM shell with mass ∼0.021 M
☉, and that the progenitor’s effective mass-loss rate varied with time over the range (50–500) × 10−5
M
☉ yr−1 for an adopted wind velocity v

w
= 1000 km s−1 and shock microphysical parameters ϵ

e
= 0.1, ϵ

B
= 0.01. These results add to the mounting observational evidence for departures from the traditional single-wind mass-loss scenarios in evolved, massive stars in the centuries leading up to core collapse. Potentially viable scenarios include mass loss powered by gravity waves and/or interaction with a binary companion.
ALCHEMI Finds a “Shocking” Carbon Footprint in the Starburst Galaxy NGC 253
Authors: Harada Nanase , Martín Sergio , Mangum Jeffrey G. , Sakamoto Kazushi , Muller Sebastien , Rivilla Víctor M. , Henkel Christian , Meier David S. , Colzi Laura , Yamagishi Mitsuyoshi , Tanaka Kunihiko , Nakanishi Kouichiro , Herrero-Illana Rubén , Yoshimura Yuki , Humire P. K. , Aladro Rebeca , van der Werf Paul P. , Emig Kimberly L. 
Published: October 2022

Abstract
The centers of starburst galaxies may be characterized by a specific gas and ice chemistry due to their gas dynamics and the presence of various ice desorption mechanisms. This may result in a peculiar observable composition. We analyse the abundances of CO2, a reliable tracer of ice chemistry, from data collected as part of the Atacama Large Millimeter/submillimeter Array large program ALCHEMI, a wide-frequency spectral scan toward the starburst galaxy NGC 253 with an angular resolution of 1.″6. We constrain the CO2 abundances in the gas phase using its protonated form HOCO+. The distribution of HOCO+ is similar to that of methanol, which suggests that HOCO+ is indeed produced from the protonation of CO2 sublimated from ice. The HOCO+ fractional abundances are found to be (1–2) × 10−9 at the outer part of the central molecular zone (CMZ), while they are lower (∼10−10) near the kinematic center. This peak fractional abundance at the outer CMZ is comparable to that in the Milky Way CMZ, and orders of magnitude higher than that in Galactic disk, star-forming regions. From the range of HOCO+/CO2 ratios suggested from chemical models, the gas-phase CO2 fractional abundance is estimated to be (1–20) × 10−7 at the outer CMZ, and orders of magnitude lower near the center. We estimate the CO2 ice fractional abundances at the outer CMZ to be (2–5) × 10−6 from the literature. A comparison between the ice and gas CO2 abundances suggests an efficient sublimation mechanism. This sublimation is attributed to large-scale shocks at the orbital intersections of the bar and CMZ.
Binaries with Possible Compact Components Discovered from the LAMOST Time-domain Survey of Four K2 Plates
Authors: Li Xue , Wang Song , Zhao Xinlin , Bai Zhongrui , Yuan Hailong , Zhang Haotong , Liu Jifeng 
Published: October 2022

Abstract
Time-domain spectroscopic data from the Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST) can provide accurate and high-cadence radial velocities (RVs). In this work, we search for binaries with compact components with the RV monitoring method by using the LAMOST time-domain survey of four K2 plates. Three binary systems including an unseen white dwarf or neutron star are found. For each binary system, we estimate the stellar parameters of the visible star and orbital parameters, and finally calculate the binary mass function and the minimum mass of the unseen star. No obvious double-lined feature is seen from the LAMOST medium-resolution spectra of the three sources. In addition, we found no X-ray counterpart for all these sources but UV companions for two of them. Spectral disentangling also shows no additional component with optical absorption spectra, supporting that these systems contain compact objects.
Hard X-Ray Flares and Spectral Variability in NGC 4395 ULX1
Authors: Ghosh Tanuman , Rana Vikram , Bachetti Matteo 
Published: October 2022

Abstract
We report the detection of flaring events in NGC 4395 ULX1, a nearby ultraluminous X-ray source (ULX), for the first time, using recent XMM-Newton observations. The flaring episodes are spectrally harder than the steady-emission intervals, resulting in higher fractional variability in the high-energy regime. A thin Keplerian and a slim accretion disk provide the best-fit continuum for XMM-Newton spectra. All observations show a broad hump-like feature around ∼0.9 keV, which can be associated with a collection of blended emission lines, and suggests the presence of a wind or outflow in this ULX through comparison with other ULXs that show a similar feature. The flaring spectra correspond to higher slim-disk temperatures due to a higher mass accretion rate under an advection-dominated accretion scenario. The luminosity–temperature (L-T) values in different flux states show a positive trend. When characterized with a power-law relation, the L-T profile is broadly consistent with both L ∝ T
2 and L ∝ T
4 relations for the analyzed data. The empirical predictions for a slim accretion disk in the case of super-Eddington accretion onto a stellar-mass compact object is L ∝ T
2, which is a possible scenario in ULX1. The origin of the flaring events is understood as an intrinsic change in accretion rate or presence of variable clumpy wind in the inner region of the accretion disk.
Análise da prática educativa de biologia na educação profissional e tecnológica com relação à integração entre formação geral e profissional e abordagem CTS
Authors: Lorenzeto Vilza Cristina , Moreira Adelson Fernandes , Pedrosa José Geraldo 
Published: October 2022

Esta pesquisa está inserida no campo da Educação Profissional e Tecnológica na interface com Educação em Ciências e estudos sobre Ciência-Tecnologia-Sociedade. Trata-se de um estudo de caso de perspectiva etnográfica, em que buscou-se caracterizar um conjunto de aulas de Biologia, em uma escola da Rede Federal, orientado pelas seguintes questões: o ensino de Biologia ocorre de modo a promover ou dificultar a integração entre formação geral e profissional? Ciência, tecnologia e sociedade se fazem presentes na prática educativa investigada? A abordagem Ciência-Tecnologia-Sociedade se vincula com a caracterização dessa prática do ponto de vista da integração? Na perspectiva do professor e dos alunos entrevistados, a integração não acontece na prática educativa investigada, e a ciência, a tecnologia e a sociedade se fazem presentes, mas de forma contingente e não inter-relacionadas explicitamente, para que os conhecimentos básicos e específicos façam parte do currículo de forma articulada e integrada. Concluiu-se que a integração entre formação geral e profissional poderia ter sido potencializada pela presença efetiva da abordagem Ciência-Tecnologia-Sociedade.
Les édits de compassion : animal, morale et politique dans le Japon du shogun Tsunayoshi (1687-1709)
Authors: Kaibara Tomohiro 
Published: October 2022

Dans le Japon de Tokugawa Tsunayoshi (1646-1709), les animaux acquirent une centralité politique, protégés par les nombreux édits dits « de compassion pour les êtres vivants », émanant du shogun. Situant ces édits tant dans le contexte politique et intellectuel du shogunat que dans les situations locales, cet article montre comment l’animal devint emblématique de la civilisation des mœurs sous l’impulsion d’un État centralisé au tournant du xviii e siècle.