bluuebunny/crossref_metadata_2025_split huggingface dataset:
Determination of Factors Affecting Dengue Occurrence in Representative Areas of China: A Principal Component Regression Analysis
Authors: Liu Xiaobo , Liu Keke , Yue Yujuan , Wu Haixia , Yang Shu , Guo Yuhong , Ren Dongsheng , Zhao Ning , Yang Jun , Liu Qiyong 
Published: January 2021

Background: Determination of the key factors affecting dengue occurrence is of significant importance for the successful response to its outbreak. Yunnan and Guangdong Provinces in China are hotspots of dengue outbreak during recent years. However, few studies focused on the drive of multi-dimensional factors on dengue occurrence failing to consider the possible multicollinearity of the studied factors, which may bias the results.Methods: In this study, multiple linear regression analysis was utilized to explore the effect of multicollinearity among dengue occurrences and related natural and social factors. A principal component regression (PCR) analysis was utilized to determine the key dengue-driven factors in Guangzhou city of Guangdong Province and Xishuangbanna prefecture of Yunnan Province, respectively.Results: The effect of multicollinearity existed in both Guangzhou city and Xishuangbanna prefecture, respectively. PCR model revealed that the top three contributing factors to dengue occurrence in Guangzhou were Breteau Index (BI) (positive correlation), the number of imported dengue cases lagged by 1 month (positive correlation), and monthly average of maximum temperature lagged by 1 month (negative correlation). In contrast, the top three factors contributing to dengue occurrence in Xishuangbanna included monthly average of minimum temperature lagged by 1 month (positive correlation), monthly average of maximum temperature (positive correlation), monthly average of relative humidity (positive correlation), respectively.Conclusion: Meteorological factors presented stronger impacts on dengue occurrence in Xishuangbanna, Yunnan, while BI and the number of imported cases lagged by 1 month played important roles on dengue transmission in Guangzhou, Guangdong. Our findings could help to facilitate the formulation of tailored dengue response mechanism in representative areas of China in the future.
PENERAPAN SAK EMKM DALAM MENYUSUN LAPORAN KEUANGAN UMKM DI FOOD CITY PASAR SEGAR KOTA MAKASSAR
Authors: Kalsum Ummu , Ikhtiari Kirana , Dwiyanti Rismala 
Published: January 2021

Penelitian ini dilakukan berdasarkan fenomena bahwa UMKM yang terdaftar di Food City Pasar Segar Kota Makassar merupakan UMKM berkembang yang sudah seharusnya menyusun laporan keuangannya berdasarkan SAK EMKM. Namun, dalam pelaksanaannya mengalami kendala dalam menyusun laporan keuangan berdasarkan SAK EMKM. Penelitian ini bertujuan untuk mengetahui dan mengkaji kendala yang dihadapi pelaku UMKM dalam menyusun laporan keuangannya berdasarkan SAK EMKM serta merancang sistem pelaporan keuangan sederhana berdasarkan SAK EMKM. Penelitian ini menggunakan pendekatan kualitatif menggunakan metode studi kasus. Sumber data yang digunakan yaitu data primer dan data sekunder. Metode pengumpulan data dilakukan dengan cara wawancara, dokumentasi dan observasi. Hasil penelitian Menunjukkan bahwa dalam penyusunan laporan keuangan, pelaku UMKM yang terdaftar di Food City Pasar segar Kota Makassar belum menerapkan SAK EMKM dikarenakan pelaku usaha tidak pernah mendapat sosialisasi, minimnya latar belakang pendidikan pelaku UMKM, tidak ada regulasi terkait pelaksanaan SAK EMKM, kurang pengetahuan dan pemahaman terkait SAK EMKM, minimnya pelatihan SAK EMKM, rendahnya modal untuk mempekerjakan staf ahli dalam menyusun laporan keuangan dan sarana prasarana yang tidak memadai serta pemilik usaha yang kurang fokus pada pelaporan hasil usahanya. Oleh karena itu, dalam penelitian ini, dirancang sistem pelaporan keuangan sederhana yang dapat membantu pelaku UMKM memahami konteks penyusunan laporan keuangan berdasarkan SAK EMKM.
An electrothermal compact model of SiC MOSFETs for analyzing avalanche failure mechanisms
Authors: Shimozato Kyohei , Nakamura Yohei , Bian Song , Sato Takashi 
Published: January 2021

Abstract
Avalanche failure that occurs in circuits with inductive loads is an important issue facing silicon carbide (SiC) metal–oxide–semiconductor field-effect transistors (MOSFETs). Two mechanisms have been suggested for this failure: the activation of a parasitic bipolar junction transistor (BJT), and the intrinsic operation of SiC at extremely high temperatures. In this study, we propose a SPICE-based electrothermal simulation model of SiC MOSFETs to simulate avalanche behavior. The proposed compact MOSFET model includes a parasitic BJT, a body diode, and an intrinsic resistance. The intrinsic resistor represents the decreasing resistance of SiC due to its intrinsic operation in extremely high temperatures. The simulation results of our model accurately reproduce the measurement results of an unclamped inductive switching (UIS) test. According to the simulation results, the main cause of MOSFET failure in the UIS test is that SiC enters intrinsic operation because of the rapid increase of junction temperature over 1200 K.
Simulation study on lateral minority carrier transport in the surface inversion layer of the p-aSi:H/i-aSi:H/cSi heterojunction solar cell
Authors: Kamioka Takefumi , Hayashi Yutaka , Gotoh Kazuhiro , Hara Tomohiko , Ozaki Ryo , Morimura Motoo , Shimizu Ayako , Nakamura Kyotaro , Usami Noritaka , Ogura Atsushi , Ohshita Yoshio 
Published: January 2021

Abstract
The theoretical lateral current of the surface inversion layer in a crystalline silicon (cSi) surface for a p-aSi:H/i-aSi:H/cSi heterojunction (SHJ) solar cell was calculated using computer simulation and was compared with the experimental one to study defects/traps at the aSi:H/cSi interface and/or in the cSi surface and to detect the acceptor concentration (N
a) in p-aSi:H. To experimentally extract the lateral surface inversion layer current, a field-effect transistor type test element group device was co-integrated with SHJ cells on the same wafer. From the correlation between the experimental and calculated lateral surface inversion layer current, the density of defects/traps (D
it) at the aSi:H/cSi interface and/or in the cSi surface and the value of N
a were extracted. The calculated lateral surface inversion layer current stayed unchanged for various minority carrier lifetimes in the substrate, suggesting that this method is not suffered from the variation in the material parameters in the substrate.
Evaluation of penetration speed of liquids into skin using a terahertz time-of-flight method
Authors: Sueda Sota , Niki Tomoya , Sakai Kenji , Kiwa Toshihiko 
Published: January 2021

Abstract
Analyzing the penetration of cosmetic/medical lotions and creams into the skin is important for evaluating their effectiveness. Hence, the penetration speed of liquids into chicken and pig skins was evaluated using a terahertz (THz) time-of-flight method. An arsenide-free disposable THz emitter comprising a silicon film on a sapphire substrate was developed for practical measurements using skin samples. The skin sample was mounted on the THz emitter surface directly so that the generated THz pulses in the silicon film were easily focused on the skin sample. To evaluate the time evolution of the penetration depth, the arrival times of the reflected THz pulses at the edge of the liquid-penetrated region on the skin were observed. As a preliminary experiment, measurements using a stack of conventional glass slides were conducted. In addition, the penetration speed into the chicken and pig skin was compared to prove the practical applicability of our method.
Planar hyper-lens with uniform pre-designed magnification factor by homogeneous medium
Authors: Sun Fei , Fu Jichao , Sun Jieliyue , Liu Yichao , Jin Yi , He Sailing 
Published: January 2021

Abstract
A hyper-lens with planar object/image surfaces and uniform magnification factor is designed based on directional projecting property of optic-null medium (ONM). The proposed planar hyper-lens only requires one homogeneous anisotropic medium, i.e. ONM. We use metallic plates inside ϵ-near-zero medium to realize the proposed hyper-lens. 0.191λ
0 resolution is observed (0.238λ
0 can be clearly resolved) in experimental measurement, which consists very well with 3D numerical simulations and verifies the performance of the proposed planar hyper-lens. The planar hyper-lens with uniform pre-designed magnification factor may have some applications in super-resolution imaging technology.
Electrical property of iron-related defects in n-type dislocated Czochralski silicon crystal used for solar cells
Authors: Gao Siwei , Yuan Shuai , Hu Zechen , Yu Xuegong , Zhu Xiaodong , Yang Deren 
Published: January 2021

Abstract
Interactions of iron atoms with dislocations in n-type Czochralski silicon have been studied by combining deep level transient spectroscopy (DLTS) and electron beam induced current (EBIC). The EBIC results indicate that dislocations facilitate the aggregation of iron atoms. The DLTS reveals three levels K1 (E
c—0.17 eV), K2 (E
c—0.35 eV) and K3 (E
c—0.48 eV). The amplitudes of K2 and K3 peaks exhibit extended localized states. The origin of levels K2 and K3 is attributed to iron clusters around dislocations, and the existence of iron clusters in the vicinity of dislocations is further proved.
Circular dichroism property of conjugated gammadion meta-atom integrated on silicon waveguide
Authors: Lin Chia-Yi , Chen Yu-Yu , Lin Pao Tai , Chang Shih-Hui Gilbert 
Published: January 2021

Abstract
The circular dichroism (CD) performance of conjugated gammadion structure on the end facet of silicon waveguide in the mid-infrared regime is investigated theoretically. By engineering the orientation of the structure, the sign and value of its CD spectrum can be changed. For a fixed gammadion structure, different CD values can be obtained not only by changing the excitation wavelength but the excitation waveguide mode. This finding potentially provides an extra degree of freedom to design integrated chiral photonics chips.
Tunable optical tweezers by dynamically sculpting the phase profiles of light
Authors: Tang Xionggui , Xu Yanhua , Yan Zijie 
Published: January 2021

Abstract
We propose an optical tweezer with tunable potential wells, by dynamically manipulating the phase gradient of light. Using our proposed method to design holograms, we can obtain desirable phase profiles and intensity distributions of optical traps. Optical force arising from phase gradient creates tunable potential wells for versatile optical nanomanipulation, such as trapping nanoparticles in peanut-shaped optical spots, positioning and shifting nanoparticles in optical gears, and controllable transport, as demonstrated in our experiments. The tunable optical tweezer has several merits including flexible design, easy control and high tunability, which provides a new tool for exploring novel functions in optical nanomanipulation.
Advanced Technologies in Strategizing
Authors: Kvint V. L. , Khvorostyanaya A. S. , Sasaev N. I. 
Published: January 2021

Since the second half of the XX century, the trend of globalization has increasingly led to the use of high-tech developments and innovations that make it possible to achieve strategic goals set at the national, regional, industrial or corporate level. All this requires carefully developed strategies that make allowance for global challenges which are based on advanced technologies that able to use them successfully as a competitive advantage at every stage of strategizing.Aim. The presented study aims to determine the role of advanced technologies in achieving strategic goals of great social significance.Tasks. The authors determine the correlation between the key elements of strategy, the process of finding and using advanced technologies in determining the development vector and achieving certain strategic goals; emphasize the importance of innovative technologies in development strategies; show that technology transfer is an efficient strategic tool for implementing advanced technologies to improve all aspects of the population’s quality of life (material, intellectual, emotional).Methods. This study is based on the general theory of strategy and strategizing methodology developed by the Center for Strategic Research of the Institute of Mathematical Research of Complex Systems and the Economic and Financial Strategy Department at Moscow School of Economics at Lomonosov Moscow State University. The strategic principles of developing practical strategic documents are considered. The study uses the methods of analysis and synthesis, analogy, comparison, generalization, induction and deduction.Results. The authors develop conceptual frameworks for finding, evaluating and implementing advanced technologies in strategizing. The study describes the role of advanced technologies in improving all aspects of the quality of life: material, intellectual and emotional.Conclusions. Advanced technologies play a crucial role in strategizing. Their application guarantees the achievement of the strategic goal of each strategy aimed at improving all aspects of the population’s quality of life (material, intellectual, emotional). At the same time, the strategic system for monitoring, finding and transferring technologies is designed to detect and use innovative developments in a timely manner to ensure effective achievement of this goal.
Reflections on Teachers and Students’ Views on Teaching and Learning Experiences at University: A Diary Study
Authors: Kaviani Amir , McKeown Kara , Eppard Jenny 
Published: January 2021

This study focuses on the research diaries of two researchers who conducted interviews with university teachers and students over a period of two years. Ten expatriate university teachers and ten Emirati university students were interviewed about their views on teaching and learning, the purpose of a university, best educational practices, the role of teachers, students and university in the broader society. After each interview was conducted, the researchers wrote reflections about the interviews in their personal research diaries. Through qualitative data analysis, the data in the diaries were analysed and the major themes were identified. In regards to the teachers interviewed, the analysis of the data showed that the diarists primarily focussed on the teachers’ “professional knowledge”, “communicative competence” and “adaptability to the new context”. With respect to the students interviewed, the data also revealed that the diarists frequently highlighted the significance of students’ “educational background”, “knowledge of English” and their views on “teacher and student relationship”. The findings of this study are in line with Ladson Bilings (1995) which show that the researchers’ sociocultural background and preconceptions can impact how they approach a research problem in a context that differs from their own. The findings also reveal that the researchers’ prior teaching and learning experiences impact their judgement of professional and academic competence. Implications for research and pedagogy will be discussed accordingly.

Received: 30 October 2020 / Accepted: 8 December 2020 / Published: 17 January 2021
Media Exposure and Child Psychology: Parental Perceptions about Effects
Authors: Zahra Muniba Fatima , Baig Fawad , Hassan Taimoor-ul 
Published: January 2021

This study explores the effect of media exposure on child’s psychology according to parental perceptions. Aggression and self-concept are selected as parameters of children psychology. The combined role of education and occupation of mothers as moderators in relationship between media exposure and children’s psychology are also analyzed. A survey was conducted with 400 parents of school going children aged between 6 to 12 years. The results show positive association of media exposure with psychology, self-concept and aggression among children according to their parents. Furthermore, the education of mother moderates the relation between media exposure and self-concept positively, while mother’s occupation does not moderate this relationship. The results also indicate that mother’s education negatively moderates the relationship between media exposure and aggression among children, however the occupation of mother positively moderates this relation. This study concludes that there is a strong effect of media exposure on children psychology as perceived by their parents.

Received: 12 September 2020 / Accepted: 2 December 2020/ Published: 17 January 2021
The Mediating Effect of Person-Organization Value Fit on the Relationship Between University branding and Academic Staff Citizenship Behavior
Authors: Mostafa Bassant Adel , El-Borsaly Azza Abd-Elqader , Hafez Eglal Abd-Elmoneim , Hassan Sally Ali 
Published: January 2021

Nowadays, research on employer branding is still growing. A specific focus on branding in the higher education sector is still limited, so this research investigates how employer branding impacts organization citizenship behavior and whether person-organization value fit mediates this relationship on a sample of 332 academic staff members working in the private higher education sector in Egypt. The data collection was performed using a self-administered survey. The research employs correlation and regression analysis to test the research hypotheses. First, the results revealed a moderately significant effect of employer branding practices on organizational citizenship behavior. Second, person-organization value fit has a positive significant mediation effect on the relationship between employer branding and organizational citizenship behavior. These results will help private universities determine to what extent investing in building a strong employer brand will help retain academic staff members.

Received: 7 October 2020 / Accepted: 11 December 2020 / Published: 17 January 2021
An Analogical Investigation of the Pythagorean Triangle: From a Mathematical Figure to an Ethical Praxis
Authors: Deguma Jabin J. , Capuno Reylan G. , Deguma Melona C. , Manguilimotan Ramil P. , Espina Raymond C. , Padillo Gengen G. 
Published: January 2021

This paper exposes an alternative and juxtaposed interdisciplinary view of the Pythagorean Triangle, from a mathematical point of view to ethical applicability. Pythagorean Theorem is understood as a mathematical principle (a2+b2=c2), where the sum of the square of the shorter legs, a and b, is equal to the square of the most extended leg, the hypotenuse, c, resulted in the equation of the right triangle (Pythagorean Triangle). As an antediluvian mathematical figure, the Pythagorean Triangle's beauty and intricacy still amazed and provoked present-day thoughts. It is indubitable that the Theorem intrigues humanity's curiosity to provide proofs of the hypothesis, as well as its application. From such a viewpoint, this paper looks into the interdisciplinary applicability of the mathematical figure of the right triangle (Pythagorean Triangle). Utilizing analogical investigation, as the prime method of this research, the paper argues that the concept of the 'right triangle' could be an analogy for 'right living.' The logic behind the Pythagorean Triangle posits inherent beauty and a transcendent possibility beyond mathematics to other disciplines like ethics. The paper offers an analogical investigation of an alternative insight for the ethical problem of 'right living.' By reflecting on the presence of the existing similar feature, the right triangle (Pythagorean Triangle) could be analogically applied to 'right living.' From extant literature, the paper concludes that uprightness and balance are two essential concepts that could propose alternative ethical views by analogy to understanding what it means for 'right living.'

Received: 12 October 2020 / Accepted: 12 December 2020 / Published: 17 January 2021
VZ Sex: X-Ray Confirmation of Its Intermediate Polar Nature
Authors: Nucita A. A. , De Paolis F. , Licchelli D. , Strafella F. , Ingrosso G. , Maiorano M. 
Published: January 2021

Abstract
Intermediate polars are members of the cataclysmic variable binary stars. They are characterized by a moderately magnetized white dwarf accreting matter from a cool main-sequence companion star. In many cases, this accretion gives rise to a detectable X-ray emission. VZ Sex is an interesting X-ray source whose nature needs a robust confirmation. Here, we used archived XMM-Newton observations to assign the source to the intermediate polar class. We applied the Lomb–Scargle periodogram method to detect any relevant periodic feature in the 0.1–10 keV light curve and performed a spectral fitting of the X-ray spectrum in order to get information on the on-going accretion mechanism. By inspecting the periodogram, we detected a clear periodic feature at ≃20.3 minutes that we interpret as the spin period of the white dwarf. We additionally found the typical side bands expected as the consequence of the beat between the spin and the orbital period of ≃3.581 hr. The source is characterized by an unabsorbed flux of ≃2.98 × 10−12 erg cm−2 s−1 corresponding to an intrinsic luminosity of ≃7 × 1031 erg s−1 for a distance of ≃433 pc. The existence of such features allows us to classify VZ Sex as a clear member of the intermediate polar class. Furthermore, with the estimated WD spin, the ratio P
spin/P
orb is ≃0.09, i.e., consistent with that expected for a typical IP system above the period gap. In addition, the estimated intrinsic luminosity opens the possibility that a bridge linking the normally bright IPs to the faint population of sources does exist.
Multiple Stellar Populations at Less-evolved Stages: Detection of Chemical Variations among Main-sequence Dwarfs in NGC 1978
Authors: Li Chengyuan , Tang Baitian , Milone Antonino P. , de Grijs Richard , Hong Jongsuk , Yang Yujiao , Wang Yue 
Published: January 2021

Abstract
Multiple stellar populations (MPs) with different chemical compositions are not exclusive features of old globular clusters (older than 10 Gyr). Indeed, recent studies reveal that younger clusters (∼2–6 Gyr-old) in the Magellanic Clouds also exhibit star-to-star chemical variations among evolved stars. However, whether MPs are present among less-evolved dwarfs of these intermediate-age clusters is still unclear. In this work, we search for chemical variations among GK-type dwarfs in the ∼2 Gyr old cluster NGC 1978, which is the youngest cluster with MPs. We exploit deep ultraviolet and visual observations from the Hubble Space Telescope to constrain the nitrogen (N) and oxygen (O) variations among main-sequence (MS) stars. To do this, we compare appropriate photometric diagrams that are sensitive to N and O with synthetic diagrams of simple stellar populations and MPs. We conclude that the G- and K-type MS stars in NGC 1978 host MPs. Our statistical analysis shows that the fraction of N-rich stars ranges from ∼40% to ∼80%, depending on the detailed distributions of N and O.
Additions to Italian Pleosporinae, including Italica heraclei sp. nov.
Authors: Wijesinghe Subodini , Wang Yong , Zucconi Laura , Dayarathne Monika , Boonmee Saranyaphat , Camporesi Erio , Wanasinghe Dhanushka N. , Hyde Kevin D. 
Published: January 2021

In the last few years, many microfungi—including plant-associated species—have been reported from various habitats and substrates in Italy. In this study of pleosporalean fungi, we researched terrestrial habitats in the Provinces of Arezzo (Tuscany region), Forlì-Cesena and Ravenna (Emilia-Romagna region) in Italy.
Our research on Italian pleosporalean fungi resulted in the discovery of a new species, Italica heraclei (Phaeosphaeriaceae). In addition, we present a new host record for Pseudoophiobolus mathieui (Phaeosphaeriaceae) and the second Italian record of Phomatodes nebulosa (Didymellaceae). Species boundaries were defined, based on morphological study and multi-locus phylogenetic reconstructions using Maximum Likelihood and Bayesian Inference analyses. Our findings expand the knowledge on host and distribution ranges of pleosporalean fungi in Italy.