bluuebunny/crossref_metadata_2025 huggingface dataset:
Resonant fiber-optic thermometry with high resolution and wide range
Authors: Li Gang , Ji Lanting , Li Guoqiang , Sun Qingquan , Gao Dexin , Zhao Shanshan , Su Juan , Wu Chi
Published: June 2022

We report a high-resolution and wide-range thermometer using a fiber Bragg grating Fabry–Perot cavity (FBG-FP) combined with beat frequency interrogation. Two distributed feedback (DFB) lasers are locked to the FBG-FP sensing head and a hydrogen cyanide H13C14N (HCN) gas cell, respectively, both using the Pound-Drever-Hall (PDH) technique. The light beams from two lasers are brought together to interfere on a photodetector producing a beat frequency signal which provides a measure of the temperature change. Our sensor exhibits a dynamic range of ∼109 °C, a high resolution of 2×10−4 °C with an averaging time of 1 s. By introducing the reference frequency, the sensor has demonstrated good long-term stability. This sensor provides a useful tool for those fields where resolving slight temperature changes is crucial, such as deep ocean temperature measurement.
Photonic-assisted frequency downconverter with self-interference cancellation and fiber dispersion elimination based on stimulated Brillouin scattering
Authors: Fan Xiaojie , Chen Yinfang , Cao Xuhua , Zhu Sha , Li Ming , Zhu Ninghua , Li Wei
Published: June 2022

A photonic-assisted frequency downconverter with self-interference cancellation and fiber dispersion elimination is proposed for in-band full-duplex (IBFD) radio-over-fiber (ROF) systems based on stimulated Brillouin scattering. In this work, a dual-polarization Mach-Zehnder modulator (DPol-MZM) is employed to cancel the self-interference signal in the optical domain, thus the proposed system has a large operation bandwidth without the limitation of the electrical bottleneck. Meanwhile, a widely tunable microwave photonic filter (MPF) based on stimulated Brillouin scattering (SBS) is constructed to perform carrier-suppressed single-sideband modulation of LO. Therefore, the proposed photonic frequency downconverter is naturally free from fiber dispersion. Furthermore, thanks to the characteristics of the SBS-based MPF, such as large out-of-band rejection ratio, high resolution and wideband tunability, the proposed system has a high flexibility and downconversion efficiency, which is of great significance for IBFD ROF systems.
Frequency-modulated continuous-wave 3D imaging with high photon efficiency
Authors: Huang Xin , Hong Yu , Li Zheng-Ping , Xu Feihu
Published: June 2022

Frequency-modulated continuous-wave (FMCW) light detection and ranging (LIDAR), which offers high depth resolution and immunity to environmental disturbances, has emerged as a strong candidate technology for active imaging applications. In general, hundreds of photons per pixel are required for accurate three-dimensional (3D) imaging. When it comes to the low-flux regime, however, depth estimation has limited robustness. To cope with this, we propose and demonstrate a photon-efficient approach for FMCW LIDAR. We first construct a FMCW LIDAR setup based on single-photon detectors where only a weak local oscillator is needed for the coherent detection. Further, to realize photon-efficient imaging, our approach borrows the data from neighboring pixels to enhance depth estimates, and employs a total-variation seminorm to smooth out the noise on the recovered depth map. Both simulation and experiment results show that our approach can produce high-quality 3D images from ∼10 signal photons per pixel, increasing the photon efficiency by 10-fold over the traditional processing method. The high photon efficiency will be valuable for low-power and rapid FMCW applications.
Numerical modeling of ultra-thin CuSbS2 heterojunction solar cell with TiO2 electron transport and CuAlO2:Mg BSF layers
Authors: Rahman M. Atowar
Published: June 2022

The ternary chalcostibite copper antimony sulfide (CuSbS2) system, with its very high optical absorption coefficient, low-cost, vacuum-free fabrication techniques, and earth-abundant elements, is a rising candidate as solar absorber material for ultrathin film solar cells. However, due to the Schottky barrier formed at the back-contact and high carrier recombination at the CuSbS2/CdS interface, the efficiency of conventional CuSbS2/CdS heterojunction solar cell is very poor. This article proposes titanium dioxide (TiO2) as an alternative to CdS layer for the CuSbS2-based thin film solar cells (TFSCs). Using TiO2, CuSbS2, and Mg-doped CuAlO2 (CuAlO2:Mg) as an electron transport layer (ETL), absorber layer, and back-surface field (BSF) layer, respectively, a novel (Al/ITO/n-TiO2/p-CuSbS2/p+-CuAlO2:Mg/Au)-based npp+ heterojunction solar cell has been designed and simulated by SCAPS-1D solar cell simulator. The effects of integrating the CuAlO2:Mg BSF layer on the PV responses of the CuSbS2-based heterojunction solar cell in terms of the built-in potential and the back-contact carrier recombination have been studied. In addition, an investigation on the influences of various device parameters viz. carrier concentration and thickness of each layer, back-contact metal work function, shunt and series resistance, and working temperature have been carried out systematically. The results are analyzed in correlation with the PV parameters of the device to optimize the efficiency of the proposed solar cell. The optimized CuSbS2-based solar cell shows good performance stability at high temperature, with a maximum efficiency of 23.05% (Voc = 969 mV, Jsc= 34.61 mA/cm2, FF = 68.71%).
Surf smelt accelerate usage of endogenous energy reserves under climate change
Authors: Russell Megan , Olson M. Brady , Love Brooke A.
Published: June 2022

Surf smelt (Hypomesus pretiosus) are ecologically critical forage fish in the North Pacific ecosystem. As obligate beach spawners, surf smelt embryos are exposed to wide-ranging marine and terrestrial environmental conditions. Despite this fact, very few studies have assessed surf smelt tolerance to climate stressors. The purpose of this study was to examine the interactive effects of climate co-stressors ocean warming and acidification on the energy demands of embryonic and larval surf smelt. Surf smelt embryos and larvae were collected from spawning beaches and placed into treatment basins under three temperature treatments (13°C, 15°C, and 18°C) and two pCO2 treatments (i.e. ocean acidification) of approximately 900 and 1900 μatm. Increased temperature significantly decreased yolk size in surf smelt embryos and larvae. Embryo yolk sacs in high temperature treatments were on average 7.3% smaller than embryo yolk sacs from ambient temperature water. Larval yolk and oil globules mirrored this trend. Larval yolk sacs in the high temperature treatment were 45.8% smaller and oil globules 31.9% smaller compared to larvae in ambient temperature. There was also a significant positive effect of acidification on embryo yolk size, indicating embryos used less maternally-provisioned energy under acidification scenarios. There was no significant effect of either temperature or acidification on embryo heartrates. These results indicate that near-future climate change scenarios may impact the energy demands of developing surf smelt, leading to potential effects on surf smelt fitness and contributing to variability in adult recruitment.
Profil Kemampuan Menyusun Rencana Pembelajaran Saintifik oleh Calon Guru Mata Pelajaran Matematika
Authors: Wulandari Enika
Published: June 2022

Pokok kajian dalam penelitian kualitatif ini adalah kemampuan mahasiswa menyusun Rencana Pelaksanaan Pembelajaran (RPP) dengan pendekatan saintifik pada mata pelajaran Matematika. Penelitian ini merupakan penelitian deskriptif kualitatif. Subjek populasi dalam penelitian ini adalah 16 mahasiswa Program Studi Tadris Matematika IAIN Salatiga yang mengikuti mata kuliah Microteaching kelas I pada semester genap tahun akademik 2018/2019. Instrumen yang digunakan dalam penelitian ini berupa pedoman observasi RPP, polling, dan pedoman wawancara. Hasil penelitian menunjukkan bahwa: 1) penyusunan RPP yang dilaksanakan oleh mahasiswa sebagai calon guru bersifat menyesuaikan dan mengacu pada rujukan di internet dan buku siswa Kurikulum 2013, 2) Sebagian mahasiswa sebagai calon guru belum mengetahui revisi Kurikulum 2013 yang didasarkan pada Permendikbud No. 22 Tahun 2016 yang mempengaruhi penyusunan RPP dari aspek kompetensi, dan 3). Berdasarkan pengambilan data, ditemukan kesalahan dalam mencantumkan kompetensi dasar, menyusun indikator pencapaian kompetensi, menyusun tujuan pembelajaran dengan aspek ”condition” yang belum spesifik dan tanpa kriteria “degree”, ditemukan RPP yang tidak menyertakan uraian materi dalam RPP,  sebagian kecil materi dan LKPD menggunakan konteks dan masalah bermuatan HOTS (Higher Order Thinking Skill), sebagian mahasiswa menguraikan materi dan menyusun LKPD secara kontekstual, mahasiswa menggunakan model pembelajaran yang dapat memfasilitasi pendekatan saintifik akan tetapi mengalami ketidakpahaman dalam menentukan sintaks RPP yang menggunakan variasi pendekatan dan model pembelajaran, seluruh mahasiswa mencantumkan sumber belajar yang sesuai dengan tujuan pembelajaran, seluruh mahasiswa mencantumkan perlengkapan pembelajaran dengan memanfaatkan ICT.
Perbandingan Model Eliciting Activities (MEAs) dan Talking Chips terhadap Kemampuan Komunikasi Matematika
Authors: Apriyanto M. Tohimin , Rahmawati Ita , Isnaningrum Idha
Published: June 2022

Tujuan penelitian ini untuk membandingkan Model Eliciting Activities (MEAs) dan Talking Chips terhadap kemampuan komunikasi matematika. Metode penelitian yang digunakan adalah eksperimen dengan post test only control design. Populasi pada penelitian ini adalah semua peserta didik kelas VII yang terdaftar pada sekolah SMPN 196 Jakarta. Sampel yang digunakan dalam penelitian ini sebanyak 50  peserta didik yang terbagi menjadi 25 peserta didik mewakili kelas eksperimen (kelas VI B) dan 25 peserta didik mewakili kelas control (kelas VI D). Teknik pengambilan sampel dilakukan secara random sampling. Teknik pengumpulan data adalah dengan menggunakan tes kemampuan komunikasi matematika. Teknik analisis data yang digunakan adalah uji–t. Berdasarkan hasil penelitian, diperoleh bahwa hasil thitung > ttabel  yaitu 6,86 > 2,0126. Dengan demikian, terdapat pegaruh Model Eliciting Activities (MEAs) terhadap kemampuan komunikasi matematika, sehingga dapat dikatakan bahwa Model Eliciting Activities (MEAs) dapat dijadikan sebagai alternatif bagi guru dalam melaksanakan pembelajaran untuk menciptakan suasana belajar yang aktif, efektif, dan tidak membosankan.
Efektivitas Pembelajaran Matematika melalui Penerapan Model Missouri Mathematics Project (MMP) pada Siswa Kelas XI MIA SMA Negeri Matakali
Authors: Machfud Hastomo
Published: June 2022

Penelitian ini bertujuan untuk mengetahui efektivitas pembelajaran matematika melalui model Missouri Mathematics Project (MMP) pada siswa kelas XI MIA SMA Negeri Matakali. Jenis penelitian ini adalah penelitian pre-eksperimen dengan desain one group pretest-posttest design. Sampel penelitian ini adalah siswa kelas XI MIA tahun ajaran 2019/2020 yang terdiri dari 31 siswa. Instrumen pengumpulan data yang digunakan adalah tes, observasi, dan angket. Teknik analisis data yang digunakan adalah analisis deskriptif dan analisis inferensial dengan menggunakan uji-t one sample test. Hasil penelitian menunjukkan bahwa pengujian hipotesis diperoleh nilai sig.(2-tailed) = 0,000 <  = 0,05. Berdasarkan hasil penelitian tersebut, dapat dismpulkan bahwa pembelajaran matematika melalui model Mssouri Mathematics Project (MMP) efektif pada siswa kelas XI MIA SMA Negeri Matakali. Dengan demikian, terjadi peningkatan yang signifikan setelah diberikan pembelajaran melalui model Missouri Mathematic Project (MMP) pada siswa kelas XI MIA SMA Negeri Matakali.
Pengembangan Desain Instruksional Model Inquiry Learning Terintegrasi TPACK untuk Meningkatkan Kemampuan Pemecahan Masalah
Authors: Waluyo Edy , Nuraini
Published: June 2022

Menghadapi perkembangan teknologi pada pembelajaran abad 21 saat ini, guru dituntut untuk memiliki pengetahuan yang mampu mengintegrasikan teknologi, pengetahuan pedagogi dan konten dalam pembelajaran yang mampu meningkatkan kemampuan pemecahan masalah siswa. Melalui pemecahan masalah siswa dituntut berpikir secara sistematis, kritis, logis, serta memiliki sikap pantang menyerah untuk menemukan solusi dari masalah yang dihadapi.Penelitian ini bertujuan untuk mengembangkan desain pembelajaran matematika dengan menggunakan model inquiry learning terintegrasi TPACK untuk meningkatkan kemampuan pemecahan masalah siswa. Metode penelitian yang digunakan adalah penelitian pengembangan model Borg & Gall yakni suatu proses sistematis yang dilakukan dalam mengembangkan suatu produk pendidikan dan mengacu pada pengembangan desain pembelajaran meliputi analisis kebutuhan, desain produk, pengembangan produk, implementasi dan evaluasi produk. Penelitian dikenakan pada 60 siswa Madrasah Tsanawiyah Muallimat NW Pancor kelas VII A dan VII D. Pengumpulan data menggunakan instrumen pedoman atau lembar validasi produk, angket kepraktisan produk dan tes hasil belajar untuk mengukur kepraktisan dan efek potensial produk yang dikembangkan. Data yang terkumpul dianalisis dengan analisis deskriptif. Dari hasil analisis data, desain instruksional yang dikembangkan tergolong produk yang valid dengan rata rata 152,67, praktis dengan rata rata skor kepraktisan 83, efektif dengan prosentase kepraktisan 91,67% sehingga layak untuk diimplementasikan. Produk yang dikembangkan juga potensial dalam meningkatkan kemampuan pemecahan masalah matematika siswa dengan N-Gain sebesar 0,75.
Guided Inquiry dengan Model Group Investigation untuk Meningkatkan Prestasi dan Mengurangi Kecemasan Matematika Siswa
Authors: Nur Azizah Luthfi
Published: June 2022

Kecemasan matematika merupakan salah satu faktor yang berpengaruh pada prestasi belajar matematika siswa.  Kecemasan matematika juga dialami oleh siswa di SMPN 2 Sleman yang dapat mempengaruhi prestasi belajarnya. Tujuan dari penelitian ini adalah meningkatkan prestasi belajar matematika dan mengurangi tingkat kecemasan matematika menggunakan model pembelajaran group investigation dengan metode guided inquiry. Penelitian ini merupakan penelitian tindakan kelas dengan desain Kemmis dan Mc Raggart yang dilaksanakan selama dua siklus. Subjek penelitian ini adalah siswa kelas VIII D SMPN 2 Sleman tahun ajaran 2018/2019. Instrumen yang digunakan adalah angket kecemasan matematika siswa, lembar tes prestasi belajar matematika, dan lembar observasi keterlaksanaan pembelajaran. Hasil penelitian menunjukkan bahwa pembelajaran dengan model pembelajaran group investigation dengan metode guided inquiry dapat mengurangi tingkat kecemasan matematika. Penurunan kecemasan matematika dapat dilihat dari peningkatan persentase hasil angket pada akhir tindakan siklus II yakni 58% dari jumlah siswa memiliki kecemasan maetmatika dengan tingkat rendah,. Hal ini didukung juga dengan hasil observasi keterlaksanaan pembelajaran pada akhir tindakan siklus II yang juga mengalami peningkatan dibanding pra siklus maupun siklus I yaitu, menjadi 93,33%. Nilai rata-rata prestasi belajar siswa dalam mata pelajaran matematika pada akhir siklus II adalah 70,97 atau sebesar 87,10 % siswa yang melebihi KKM. Pembelajaran dengan model pembelajaran group investigation dengan metode guided inquiry dapat menciptakan suasana pembelajaran yang aktif, kreatif, dan menyenangkan sehingga siswa dapat mengurangi kecemasan matematika dan meningkatkan prestasi belajarnya.
Effect of climate change on fir forest communities in the mountains of South-central Greece
Authors: Samaras Dimitrios , Damianidis Christos , Fotiadis Georgios , Tsiftsis Spyros
Published: June 2022

The endemic oro-Mediterranean fir (Abies spp.) forests in Greece are valuable ecosystems with high ecological and economic importance. In the mountains in south-central Greece, the availability of moisture plays a crucial role in the floristic composition, structure and distribution of fir forest communities. Because of the predicted adverse climate changes for the Mediterranean zone, suitability of many habitats for the growth of fir forests will change. This study aims to quantify the degree to which these forests will be affected by climate change. Current and future climatic conditions in the area studied were estimated for two periods of time (2041 – 60, 2061 – 80) and two climate change scenarios (RCP 4.5, RCP 8.5). Vegetation releves were classified and ordinated. Recursive partitioning was used to reveal the most important factor for discriminating the main plant communities and determining the ecological threshold between them. Current and future suitability of bioclimatic space for fir forest communities was identified. The effect of climate change was assessed based on predicted changes in the potential distribution, in terms of size and location, of fir forest communities. Two plant communities that reflect the differentiation of fir forests into xerophytic and mesophytic forest types are described. Among several climatic variables, spring drought was the best factor discriminating these two forest communities. The quantification of the threshold for drought in these two plant communities was used to predict their potential distribution in the area studied. Potential distribution of fir forests in south-central Greece will change in the future, due to a reduction in suitable bioclimatic space and shift to higher altitudes. The effect is expected to be greater for xerophytic forest communities, especially in the worst-case scenario (RCP 8.5) and in 2061–80.
The influence of rice-duck farm soil on the nitrogen content of different varieties of japonica rice
Authors: Ebissa Tchister Morrel , Yang Bo , Vindušková Olga , Gao Yi , Gong Qiong , Zheng Xiangqun
Published: June 2022

Nitrogen fertilizers are widely applied to increase rice yields, but excessive fertilization poses an environmental risk. It has been shown that rice-duck farming can be more efficient in terms of N use by improving rice growth. Several pathways have been proposed for how ducks may improve rice growth in paddy fields. The aim of this study was to investigate the isolated effect of rice-duck farm soil on rice, namely the N content in different plant organs and whether it differs among rice varieties. In a 116-day greenhouse pot experiment, six different Japonica rice varieties (JinU99, Jinyuan98, Jindao18, Jinyuan89, Jinhei1 and Jindao201) were grown in fertilized duck and no-duck soil after which the N content in their organs and the numbers of surviving and grain-producing plants were compared. The straw and leaf N concentrations were positively influenced by rice-duck farm soil while in the roots, this effect was recorded in only two rice varieties. Grain N content differed among varieties, but was not significantly influenced by soil type. Overall, N concentrations in straw and leaf, and roots of some rice varieties, but not in grain grown on duck soil were higher than that in those grown in soils not influenced by rice-duck farming. This study for the first time demonstrates that rice-duck farm soil alone can influence rice growth, namely an increase in the N content of certain rice plant organs.
A New Transport Distance and Its Associated Ricci Curvature of Hypergraphs
Authors: Akamatsu Tomoya
Published: June 2022

The coarse Ricci curvature of graphs introduced by Ollivier as well as its modification by Lin–Lu– Yau have been studied from various aspects. In this paper, we propose a new transport distance appropriate for hypergraphs and study a generalization of Lin–Lu–Yau type curvature of hypergraphs. As an application, we derive a Bonnet–Myers type estimate for hypergraphs under a lower Ricci curvature bound associated with our transport distance. We remark that our transport distance is new even for graphs and worthy of further study.
Calculation of NaI(Tl) detector efficiency using 226Ra, 232Th, and 40K radioisotopes: Three-phase Monte Carlo simulation study
Authors: Tekin Huseyin Ozan , ALMisned Ghada , Issa Shams A. M. , Zakaly Hesham M. H. , Kilic Gokhan , Ene Antoaneta
Published: June 2022

Thallium-activated sodium iodide (NaI(Tl)) detectors can be used in gamma cameras, environmental radiation assessments, including radiation emission levels from nuclear reactors, and radiation analysis equipment. This three-phase investigation aimed to model a standard NaI(Tl) detector using the Monte Carlo N-Particle eXtended (MCNPX) general-purpose Monte Carlo simulation techniques. Accordingly, a standard NaI(Tl) detector was designed along with the required properties. Next a validation study of the modelled NaI(Tl) detector has been performed based on the experimental results for absolute detector efficiency values obtained from 226Ra, 232Th, and 40K radioisotopes. Our findings indicate that the obtained absolute detector efficiency values are quite close to used experimental values. Finally, we used the modelled detector for determination of mass attenuation coefficients of Ordinary concrete, Lead, Hematite-serpentine concrete, and Steel-scrap concrete at 186.1, 295.22, 351.93, 609.31, 1120.29, 1764.49, 238.63, 911.2, 2614, and 1460.83 keV gamma-ray energies. Additionally, according to our findings, mass attenuation coefficients obtained from the newly designed detector are compatible with the standard NIST (XCOM) data. To conclude, continuous optimisation procedures are strongly suggested for sophisticated Monte Carlo simulations in order to maintain a high degree of simulation reliability. As a result, it can be concluded that the validation of the simulation model is necessary using measured data. Finally, it can also be concluded that the validated detector models are effective instruments for obtaining basic gamma-ray shielding parameters such as mass attenuation coefficients.
A comparative investigation on wear characteristics of polymer and biopolymer gears
Authors: Ghazali Wafiuddin Md. , Abu Bakar Mohd Hafizuddin , Nafiz Daing , Jain Mohit , Patil Santosh
Published: June 2022

Plastic gear applications are rapidly increasing in transmission systems in automotive, domestic and kitchen machineries. Biopolymer gears are now being preferred over polymer gears due to its biodegradable properties. Hence, a comparative investigation of wear characteristics between polymer and biopolymer gears is studied. Injection molded biopolymer, PLA (polylactic acid) gear and polymer, ABS (acrylonitrile butadiene styrene) gear have been fabricated with appropriate properties. Gears are experimentally tested for the period of 3 h at three different rotational speeds (500, 1000 & 1500 rpm) with and without load (1 kg). Wear debris, material loss, thermal damage and microstructure surface condition monitoring have been investigated. PLA presents better adhesive wear resistance and shows thermal deformation and tooth breakage. Biopolymer gives better thermal and wear resistance than polymer gear. At low rotational speed of 500 rpm under no-loading condition, both PLA and ABS show higher weight loss and wear rate due to thermal damage occurred due to gear pump effect. Whereas when load is applied, PLA shows wear loss at all rotational speeds due to inferior thermal conductivity and ABS shows wear loss at high rotational speeds of 1000 rpm or 1500 rpm due to loading effect.
“Jerusalem and Athens” in America: On the Biographical Background of Leo Strauss’s Four Eponymous Lectures from 1946, 1950, and 1967, And an Abandoned Book Project from 1956/1957
Authors: Kerber Hannes
Published: June 2022

Throughout his life, Leo Strauss (1899–1973) employed the expression “Jerusalem and Athens” to refer metaphorically to the two opposing poles of his thinking: biblical faith and ancient philosophy. While Strauss continuously stressed that “Jerusalem” and “Athens” pose a radical alternative, which demands a binary choice, he himself did not present his decision to the public. The following essay examines for the first time four different lectures that Strauss gave in New York City (1946 and 1967), Annapolis (1946), and Chicago (1950) under the title “Jerusalem and Athens.” Using not only the new first edition of the 1950 lecture published in this volume – Strauss’s most extensive public treatment of the issue – but also dozens of recently discovered archival sources, I try to illuminate the historical settings in which Strauss spoke about the tension between “Jerusalem” and “Athens.” This biographical approach highlights rhetorical strategies adopted by Strauss in his lectures and intends to show different reasons he had to abstain from opting publicly for either “Jerusalem” or “Athens.” In the concluding part, I discuss Strauss’s previously unknown but well-advanced (if eventually abandoned) plans to publish a monograph entitled Jerusalem and Athens with the University of Michigan Press in 1956/1957.
Leo Strauss’s “Jerusalem and Athens” (1950): Three Lectures Delivered at Hillel House, Chicago
Authors: Denker Laurenz , Kerber Hannes , Kretz David
Published: June 2022

For the first time, this edition presents Leo Strauss’s Hillel House lecture series on “Jerusalem and Athens.” The three lectures, delivered in the fall of 1950, investigate the agreement, disagreement, and conflict between the biblical and the philosophic “ways of life”: “Philosophy in the full sense is [...] incompatible with the biblical way of life. Philosophy and the Bible are the alternatives or the antagonists in the drama of the human soul. Each of the two antagonists claims to know the truth, namely, the decisive truths, the truths regarding the right way of life. But there can be only one truth, and, hence, conflict is inevitable.”
Efferent Activity Controls Hair Cell Response to Mechanical Overstimulation
Authors: Lin Chia-Hsi Jessica , Bozovic Dolores
Published: June 2022

The efferent pathway strengthens the auditory system for optimal performance by fine-tuning the response and protecting the inner ear from noise-induced damage. Although it has been well documented that efference helps defend against hair cell and synaptic extinction, the mechanisms of its otoprotective role have still not been established. Specifically, the effect of efference on an individual hair cell’s recovery from mechanical overstimulation has not been demonstrated. In the current work, we explored the impact of efferent stimulation on this recovery usingin vitropreparations of hair cells situated in the sacculi of American bullfrogs (Rana catesbeiana). In the absence of efferent stimulus, exposure of a hair bundle to high-amplitude mechanical deflection detuned it from its oscillatory regime, with the extent of detuning dependent on the applied signal. Efferent actuation concomitant with the hair bundle’s relaxation from a high-amplitude deflection notably changed the recovery profile and often entirely eliminated the transition to quiescence. Our findings indicate that the efferent system acts as a control mechanism that determines the dynamic regime in which the hair cell is poised.
Do Adversity Intelligence have Roles in Career Maturity for Accounting Pre-Service Teacher?
Authors: Susilowati Nurdian , Aeni Ida Nur , Mudrikah Saringatun
Published: June 2022

This study aims to analyze the effect of ICT skills and English competencies on career maturity with adversity intelligence as a moderating variable. This study was conducted on accounting pre-service teacher students. The study population is eighty students of accounting education international class. By using simple random sampling, there were sixty-five students as the research sample. Data are collected by questionnaire and analyzed using descriptive analysis and moderation regression analysis (MRA). The results show that ICT skill does not have a significant effect on career maturity. English competencies have a significant impact on career maturity. Adversity intelligent moderate ICT skill on career maturity. Adversity intelligence moderates English competencies on career maturity. English competencies have an essential role in career maturity, which will further affect his career choices. The performance of adversity intelligence as the intelligence behind success in facing challenges after failures many are explored and investigated in the world of education today. Adversity intelligence is needed to deal with various difficulties experienced in learning.
Project Based Learning on Creative Economy Competence at Vocational Schools in Bali
Authors: Wahjusaputri Sintha
Published: June 2022

This study aims to analyze the implementation and implementation of industrial working practices (Prakerin) based on project-based blended learning in the field of creative economy expertise at Vocational Schools in Bali Province during the new normal. Industrial work practices (Prakerin) improve students' competence in work experience in the working world industry (IDUKA). The research model uses a qualitative method with a case study. This method is intended to know in depth the implementation of industry work practices (prakterin) based on project based learning online or offline in SMK Bali Province. The research began through direct observation (observation) of the activities of the implementation of industry work practices based on blended learning projects in SmK Bali Province. Data collection techniques are carried out through in-depth interviews with informants who are directly involved in industry work practice activities (prakerin) based on blended learning projects. The research location was conducted at SMKN 1 Sukowati, Bali, SMKN 2 Negara Bali, SMKN 3 Denpasar and SMKN 5 Denpasar Bali Province. The results of this study indicate that: 1) The conditions for implementing project based learning Prakerin are constrained by the limitations of face-to-face learning activities in education units; (2) Project-based, blended learning-based Industrial Work Practice is one solution as a form of student industrial work practice program using online learning as well as face-to-face teaching and collaboration to design, repeat, and complete project-based learning tasks or creative economy products; (3) The industrial work practice curriculum is the result of synchronizing the curriculum in the education unit with the industrial working world curriculum (IDUKA).
Development of E-Module of Teacher Professional Ethics Based on Team-Based Project with Onenote Office 365
Authors: Permana Dian Fithra , Muhsin Muhsin , Saeroji Ahmad , Afianingsih Lia
Published: June 2022

This research revealed the effectiveness of e-module based on team-based project on teacher profession ethics in supporting online learning. This research was a development research with ADDIE.  The e-module of Teacher Professional Ethics was developed based on OneNote application. The feasibility level obtained by the media from the average material validation result was 3.00 with a good category and the results of validation media obtained an average of 3.44 with a very good category. E-module learning media trials for students gained an average eligibility of 3.30 with a good category. Thus, it can be concluded that the learning media e-module of teacher professional ethics with Onenote Office365 in the Administrative Education study program can be used to improve knowledge and alternative online learning during the Covid-19 pandemic.
Development of Higher Order Thinking Skills Based Assessment Instruments Using Live Worksheet Application
Authors: Puspitasari Ratih Octaviana , Wulandari Siti Sri
Published: June 2022

The research aimed to develop higher-order thinking skill (HOTS) based assessment instruments based on Live Worksheet applications on Creative Products and Entrepreneurship (PKWU) subjects, especially on Basic Competencies 3.2 Analyzing business opportunities and Basic Competencies 3.3 Applying business administration documents. This research used Sugiyono's development model with seven development steps. The research subject consisted of 34 students of class XI Department of Office Governance Automation SMKS Ketintang Surabaya. The development of this assessment instrument resulted in 20 questions that were declared valid with the calculation of r calculated r table (0.3291). The instrument developed was said to be reliable because the reliability value of the problem of 0.840 0.60 The results of product validation development from three expert validators obtained an average validation of 95.6% with "very strong" criteria. The average student responded to the use of the Live Worksheet application "very positively by 88%. As per results of this study trial, the average ability to think high-level students fell into the category of "less". Therefore, the learning process to improve high thinking skills in students must be further improved with a learning model or method that can encourage the improvement of students higher-order thinking skills.
Pituitary apoplexy in the aftermath of a SARS-CoV-2 infection: a case series from Amiens University Hospital
Authors: Balmain Joe , Jarebi Meshal , Al-Salameh Abdallah , Toussaint Patrick , Timmerman Marine , Chenin Louis , Constans Jean-Marc , Desailloud Rachel
Published: June 2022

Objective

Since the outbreak of the COVID-19 pandemic, several cases of pituitary apoplexy (PA) following a SARS-CoV-2 infection have been described in several countries. Here, we describe a case series of PA occurring in the aftermath of a SARS-CoV-2 infection to alert physicians about possible neuro-endocrinological damage caused by the virus that can lead to visual sequelae and hypopituitarism.

Design and methods

We retrospectively identified all the adult patients treated at Amiens University Hospital between March 2020 and May 2021 for PA confirmed by cerebral imaging and following an RT-PCR-confirmed SARS-CoV-2 infection.

Results

Eight cases (six women, two men) occurred between March 2020 and May 2021 and were reviewed in this study. The mean age at diagnosis was 67.5 ± 9.8 years. Only one patient had a ‘known’ non-functional pituitary macroadenoma. The most common symptom of PA was a sudden headache. Brain imaging was typical in all cases. Only two patients required decompression surgery, whereas the others were managed conservatively. The clinical outcome was favorable for all patients but without recovery of their pituitary deficiencies. There was no diabetes insipidus.

Conclusion

This case series, the largest in the literature, reinforces the strength, consistency, and coherence of the association between SARS-CoV-2 infection and PA. Our study provides support for the hypothesis that SARS-CoV-2 may be a new precipitating factor for PA. It is essential that practitioners be alerted about possible pituitary disease due to the virus so that such patients are recognized and appropriately managed, hence improving their prognosis.
Las tecnologías digitales educativas:¿fines de mercado o medios al servicio del aprendizaje crítico?
Authors: Gómez Torres Juan Rafael
Published: June 2022

This essay intends to show that digital technologies have their own goals since their creation and that some possible consequences of their indiscriminate use in education are misinformation, solipsism, loss of privacy and labor rights, the instrumentalization of reason and life, generating benefits for a few companies and business people that promote them to accumulate riches concentrated in few hands. From this reality, we propose that their use be revised so that their application does not follow parameters issued by big companies, financial entities, or neoliberal governments, that they be used critically, ethically, and politically to benefit those that have fewer opportunities, nature itself, those that are unprivileged, and social justice to reach an ethical, aesthetic, and transformative learning.
Libros digitales interactivos de matemática como apoyo al aprendizaje en una modalidad a distancia: una propuesta para sexto grado de primaria
Authors: Solís Ortega Rebeca , Suárez Valdés-Ayala Zuleyka , Monge Madriz Carlos , Sánchez Fernández Ivonne Patricia
Published: June 2022

EVEPRIM 6 (Spanish acronym for Virtual Education for Sixth Grade Primary Students) is a project developed by Instituto Tecnológico de Costa Rica throughout the second semester of 2020. Its main purpose was to support the education system of Costa Rica due to the impact caused by the COVID-19 pandemic. One of the main goals of the project was to analyze different types of educational resources that can be used in distance education. This was done for developing educational tools that can be used by teachers, parents and sixth year primary school students. In the end, two interactive books were created. The books are aimed at students, teachers and parents, and the main content focuses on the areas of Numbers and Algebra. Also, 43 videos that explain the subjects of the books were created. All the resources follow the five disciplinary areas given by the Ministry of Public Education of Costa Rica. Resources are free to use and share and can be access at www.tec.ac.cr/eveprim.
Evaluación de los aprendizajes en el e-learning, el reto en la educación a distancia
Authors: Mora Vicarioli Francisco
Published: June 2022

This article contains elements of the progress of a doctoral research, whose main axis is assessment in e-learning, within the distance model of National Distance State University (UNED, for its acronym in Spanish) of Costa Rica and the population of two postgraduate degrees. In the current situation of the 2020 pandemic in which the use of virtuality allows guaranteeing academic processes worldwide, the challenge represented by assessment and its adaptation to a model other than the face-to-face one is more clearly visualized, in which there is no longer the control that the teacher can exercise when monitoring written tests, but it is possible to take advantage of communication and collaboration thanks to technologies. This article contains conceptual clarifications and important inputs for those teachers who seek guidance to implement assessment through a formative vision and where the student is actively located. It is a theoretical review that supports the research and shapes it at a methodological level.
Perspectivas y estrategias orientadas a la democratización de la educación superior para poblaciones indígenas
Authors: Vargas Morales Marielos , Cubillo Jiménez Kenneth , León Sánchez Jorge
Published: June 2022

This article aims to socialize the vision, perspectives, and strategies which were developed during the academic and administrative management of the School of Rural Education at Universidad Nacional, Costa Rica during the years 2008-2019. For this purpose, varied actions were carried out to offer equal opportunities to indigenous people in regards to their higher education. Access, permanence, and academic success were key to help and support these students to become professionals in elementary teaching, a process that implied the promotion of changes in the pedagogical mediation and flexibility and pertinence in terms of the admission process; this had the main purpose of being “the necessary university”, a motto that characterizes and projects the alma mater of this university.
The Bibliographical Maker Movement
Authors: Jacobs Courtney “Jet” , McIntosh Marcia , O’Sullivan Kevin M.
Published: June 2022

At the end of the twentieth century, increased access to certain technologies and processes, such as 3D scanning, computer-aided design, rapid fabrication and microcircuitry, enabled consumers to become creators of material design. These activities, which collectively came to be known as making, extended across both public and private sectors, including the study of the book. This paper offers an extended discourse on the full range of activities comprising the bibliographical maker movement, which in recent years has coalesced around the idea that maker culture may be employed to enhance our understanding of not only the history but also the future of the book. The application of these new technologies toward critical book studies has proceeded from the practice-based approach to research and instruction first begun under the auspices of the bibliographical press movement in the mid-twentieth century. In keeping with this earlier work, biblio-making is predicated upon the idea that certain kinds of knowledge are best gained through personal experience and experimentation. This article will first outline the benefits of applying 3D technologies to the goals of book history before locating and describing the activities of participating individuals and institutions within three broad categories: holistic, 3D digitisation; recovering historical tools and processes; and creative experiments in book design. As the article demonstrates, the strength and potential of the bibliographical maker movement lies in its widening community of practice and that, by virtue of its being an open-access network of constituents, it is now poised to make a significant and lasting contribution to the study of the book.
Back to Thailand: Post-Graduated Patani Students’ Work Orientation
Authors: Siahna Mr. Idres
Published: June 2022

Kajian ini membahas orientasi kerja mahasiswa Islam asal Patani, Thailand, setelah lulus perkuliahan dari UIN Sunan Gunung Djati Bandung. Dengan fokus penelitian pada alumni asal Patani lulusan tahun 2012-2015, kajian ini bertujuan untuk mengetahui variasi pekerjaan mereka dan mengungkapkan faktor-faktor yang mempengaruhi orientasi kerja mereka. Penelitian ini menggunakan teori pilihan rasional Coleman. Metode penelitian yang digunakan adalah kualitatif-deskriptif. Pengambilan sampel sumber data dilakukan dengan teknik purporsive sampling dan snowball sampling. Analisis data dilakukan dengan triangulasi (gabungan) dan bersifat interaktif dan kualitatif yang lebih menekankan pada makna daripada generalisasi. Hasil penelitian ini  menunjukkan bahwa dalam hal orientasi kerja mahasiswa Patani di UIN SGD Bandung pasca-kelulusan sebagian besar memiliki keinginan mendapat pekerjaan sesuai dengan latar belakang keilmuannya masing-masing walaupun ada sebagian mahasiswa yang memilih pekerjaan di luar dari latar belakang keilmuannya. Variasi pekerjaan yang didapatkan oleh para alumni UIN SGD Bandung asal Patani lulusan dari tahun 2012 sampai tahun 2015 adalah guru, wirausaha dan petani. Orientasi kerja mereka dipengaruhi oleh faktor penghambat, yakni sedikitnya lapangan perkerjaan yang tersedia dikarenakan sulitnya sistem rekruitmen pekerjaan di Thailand, dan faktor pendorong yakni motivasi, ekonomi, dan sumber daya manusia.
Konstruksi Sosial Masyarakat Percandian dalam Pemeliharaan Kearifan Lokal
Authors: Enda Enda
Published: June 2022

This study aims to determine the social construction of the Batujaya temple complex, Karawang, West Java in maintaining local wisdom. This study uses Peter L. Berger's social construction theory, which sees society as a process that takes place in three dialectical moments at once, namely externalization, objectification, and internalization. The social construction of society has a long journey from the past to the present, and the future. So that in society a social reality is created. The method used in this research is a descriptive method, which is a type of qualitative data to describe, analyze, and reveal events that occur in the field. The data sources of this research are the village government, community leaders, temple maintenance workers, and the temple community. Data collection methods used in this study were observation, interviews, and documentation. In addition, it is also equipped with secondary data in the form of reference books, tourism profiles in the form of brochures that are relevant to the research theme to support data in the field. The results showed that in order to maintain local wisdom, the people of the baths still maintain their belief in animism and dynamism. Relations between local communities are built through a process of adaptation, interaction, and socialization. Efforts to regenerate local wisdom are carried out through integrated socialization to schools and creating a tourism-loving community.
The biomass of benthos on the littoral and spring spawning grounds of Kurile Lake in the period of low abundance of foraging juvenile sockeye salmon in 1974
Authors: Milovskaya L. V.
Published: June 2022

Characteristics of qualitative and quantitative composition of benthos organisms on littoral and spring spawning grounds of Kurile Lake was given for the first time in 1974. Grounds of the littoral and spring spawning grounds typically consist of intermiting plots of pebble or gravel (clean or covered by biocrust) with permanent sand component, sometime silty. The silt component in the spring spawning grounds in the rivers Srednaya and Kirushutk is more impressive comparing to the lake spawning grounds. Chironomids of the groupCrico­topusaffаlgarumdominated in all sites. In the mid of July the highest biomass of the benthos among the littoral spawning grounds was near the head of the Ozernaya River, at Severnoye Blizhneye and Severnoye Dalneye spawning grounds, the lowest biomass was in the Gavryushka Bay and near the Etamynk River mouth. Spring spawning grounds were extensively different: maximum biomass of the benthos, which almost totally consisted of chironomids, was typically recorded in the Srednaya River, minimum biomass — in the Kirushutk River.
Results of quantitative count of not numerous species of pacific salmon at the fish enumeration facility in the headwaters of the Ozernaya River (Western Kamchatka)
Authors: Dubynin V. A. , Kirillova E. A.
Published: June 2022

Results of investigations of spawning run and quantitative assessment of Pacific salmon (pink salmon, chum salmon, coho salmon and chinook salmon) obtained during counting the sockeye salmon at fish enumeration facility in the headwaters of the Ozernaya River. It is revealed that abundance of various Pacific salmon species except sockeye salmon reaches significant values in some years in Kurile Lake. The presented data supplement knowledge about biology and reproductive ecology of pink salmon, chum salmon, coho salmon and chinook salmon.
Bir Kadı-Sûfînin Gözüyle Osmanlı Dönemi Ulemâ-Sultan İlişkileri Ketâibu A’lâmi’l-Ahyâr Örneği
Authors: DÖNER Nuran
Published: June 2022

Osmanlı Dönemi müellif sufî kadılarından biri olan Mahmud Kefevî (ö. 1582), hicrî ilk asırdan kendi dönemine kadar yaşayan Hanefî fukahâsını ve her asrın sufîlerini ele aldığı “Ketâibu a’lâmi’l-Ahyâr min fukahâi mezhebi’n-Nu’mâni’l-Muhtâr” isimli eseri ile tanınmaktadır. Kefevî, sûfî ve fakihleri ortak ele aldığı eseri ve kadı-sûfî kimliği ile birlikte değerlendirildiğinde uzlaşmacı bir portre çizmektedir. Ayrıca Kefevî’nin eseri her ne kadar âlimler ve sûfileri içerse de Ketâib’de yer alan hukukçuların dönemlerindeki yönetimle ilişkileri ve yöneticilere dair düşünceleri de yer yer eserde konu edilmiştir. Osmanlı Dönemi’nde yaşamış, kadı olarak görev almış ve azledilmiş biri olarak Kefevî’nin bu dönemle, Osmanlı fukahâsı ve sultanlarıyla ilgili kendi düşüncelerini de ifade etmesi, konumuz açısından önemlidir. Mahmud Kefevî, mezkur eserinde âlimlerin sultanlarla ve yöneticilerin de ulemayla ilişkilerinde dikkat etmeleri gereken önemli prensiplere yer vermektedir. Kadı ve hâkimin ilminin inceliklerine vâkıf, sâlih, âdil, ârif kişiler olması gerektiği Ketâib’de vurgulanmaktadır. Bununla birlikte hukuk işini ehil olmayandan alıp ehli olana vermenin de yöneticinin uhdesinde olduğunu belirtir. Liyâkât, bir veziri görevlendirirken de bir şeyhülislam atarken de sultanın dikkat etmesi gereken en önemli prensiplerdendir. Osmanlı döneminde üst düzey görev alan hukukçular ve onların sultanlarla olan ilişkilerinin eserde konu olması, Ketâib’i konumuzla ilgili oldukça dikkat çekici kılmaktadır. Eserde özellikle vezir ataması, padişahın en fazla ehemmiyet vermesi gereken konulardan biri olarak gözükmektedir. Çünkü toplum işlerini salah ile yürütecek kazaskerler ve ilim adamlarının sultanla ilişkisinde vezirin ehil olması hayatî bir öneme sahiptir. Ketâib ilk bakışta her ne kadar bir biyografi kitabı görünümüne sahipse de bu makale, eserin satır aralarından özellikle Osmanlı dönemindeki ulemâ-sultan ilişkileri konusunda önemli prensipleri sunmayı amaçlamaktadır.