bluuebunny/crossref_metadata_2025_split huggingface dataset:
COMPOSITION AND QUANTIFICATION OF FATTY ACIDS PRODUCED BY Xylaria sp. DAP KRI-5
Authors: Fathoni Ahmad , Ilyas Muhammad , Praptiwi Praptiwi , Kamal Andi Saptaji , Hafid Lukman , Marlina Lina , Agusta Andria 
Published: May 2021

Asam lemak mempunyai nilai guna komersial sebagai suplemen makanan, produk farmasi dan sumber energi terbarukan. Sumber asam lemak sebagian berasal dari hewan, tumbuhan, dan jamur endofit. Penelitian ini bertujuan untuk menganalisis kandungan dan komposisi asam lemak dari jamur endofit Xylaria sp. DAP KRI-5. Asam lemak didapatkan dari fraksi n-heksana yang dihasilkan dari partisi ekstrak etil asetat Xylaria sp. DAP KRI-5 dengan n-heksana: metanol (1:1). Turunan FAME (Fatty acid methyl ester) dari asam lemak didentifikasi dengan menggunakan GC-MS. Kandungan asam lemak dari fraksi n-heksana Xylaria sp. DAP KRI-5 adalah 26,39% (b/b) ekstrak kering. Analisis kuantitatif dilakukan menggunakan GC-MS. Komposisi dan kuantifikasi asam lemak Xylaria sp. DAP KRI-5 adalah asam linoleat (41,177%; 112,24 mg/L); asam palmitat (25,114%; 68,45 mg/L); asam oleat (14.198%; 38,70 mg/L); asam stearat (6,575%; 17,2 mg/mL); dan asam palmitoleat 2,165%; 5,90 mg/mL). Persentase asam lemak jenuh dan tidak jenuh berturut-turut adalah 31,69 and 57,54%. Kesimpulan dari penelitian ini menunjukkan jamur endofit Xylaria sp. DAP KRI-5 berpotensi sebagai sumber asam lemak tidak jenuh. Penelitian ini merupakan laporan pertama dari asam lemak yang diproduksi oleh Xylaria sp. DAP KRI-5.
Teoretický model pro formativní hodnocení při badatelsky orientované výuce matematiky a přírodopisu
Authors: Samková Libuše , Rokos Lukáš , Petr Jan , Stuchlíková Iva 
Published: May 2021

Předkládaná teoretická studie se zaměřuje na otázky související s propojením formativního hodnocení a badatelsky orientované výuky ve školní praxi a k této problematice přistupuje společně pro matematiku a přírodovědné předměty (konkrétně přírodopis). Na základě společných rysů badatelsky orientované výuky v obou předmětech a s využitím teoretického modelu pro popis interakcí při poskytování okamžité zpětné vazby učitelem jsme vytvořili nový teoretický model pro popis interakcí při formativním hodnocení realizovaném během badatelsky orientované výuky. Výsledný teoretický model pro formativní hodnocení při badatelsky orientované výuce představujeme prostřednictvím sady schémat, která obecně popisují průběh výukového bloku s badatelskou úlohou z pohledu formativního hodnocení, a prostřednictvím nového tzv. double:ESRU modelu pro kódování různých typů interakcí, ke kterým dochází při formativním hodnocení. Možnosti teoretického modelu ilustrují podrobné analýzy dvou virtuálních výukových bloků s badatelskou úlohou (matematického a přírodopisného). Prezentovaný model nabízí pedagogickému výzkumu nástroj pro podrobnou přiléhavou analýzu formativního hodnocení při badatelsky orientované výuce, učitelům a budoucím učitelům nabízí nástroj pro podporu implementace formativního hodnocení a badatelského přístupu do jejich vlastní výuky. Vizualizace propojení obou přístupů a nezávislost modelu na školním předmětu by měly pomoci porozumět možnostem, které formativní hodnocení při badatelsky orientované výuce nabízí.
Collection of Taxes from Ultimate Beneficiaries: Russian Regulatory Model
Authors: Tsindeliani Imeda , Egorova Maria , Vasilyeva Evgeniya , Bit-Shabo Inessa , Kikavets Vitaly 
Published: May 2021

Abstract
The problem of aggressive tax optimization and the related issue of liability of individuals who are the ultimate beneficiaries of company’s tax liabilities are becoming more and more regulatory complex. The purpose of the study, implemented using the system-functional method, is to theoretically substantiate the ways to overcome the problems that arise when collecting taxes in favor of the state from the ultimate beneficiaries. The results of the study indicate that the corporate structure cannot fully protect the beneficiary of an enterprise from property liability for committing a tax offense. The study proposes a strategy to improve the efficiency of collection of receivables from real beneficiaries. The results of this study are of great practical importance for the subjects of legislative initiative and practitioners in the field of tax legal relations. If under the conditions of the Russian legal system until 2016 it was practically impossible to prove the informal connection of a company with an actual beneficiary, then as a result of the adoption of Federal Law No. 401-FZ of November 30, 2016, the courts began to take into account any evidence that could become an argument for bringing the ultimate beneficiary to justice. This in turn led to the emergence of controversial issues. For this reason, the authors highlighted the problems arising as a result of law enforcement.
Yoga for children in the new normal – experience sharing
Authors: Kuppusamy Maheshkumar , Ramaswamy Veni , Shanmugam Poonguzhali , Ramaswamy Padmavathi 
Published: May 2021

Abstract

Objectives
Covid-19 Pandemic has affected everyone’s mental health. In addition to several preventive measures such as wearing a mask, using sanitizer, measures also need to be taken to prevent anxiety and depressive disorders due to this unexpected crisis situation. Practicing yoga is one of the simple, scientific methods to combat stress and prevent anxiety among children.

Methods
The scientific evidence and anecdotal experiences on benefits of yoga is described in this paper, highlighting the importance of yoga in nurturing the mental well-being in children.

Results
Scientifically designed and conducted studies as part of the research programs by health professionals objectively conclude that mental health parameters improve significantly with yoga as an intervention. In addition to mental health, yoga will also improve the physical health and boost immunity among children which will also help in reducing the infection rate in children.

Conclusions
As a way forward, authors strongly recommend establishing yoga as a curriculum at scale to cover the vast vulnerable population of young children who are the future of the nation.
On the transmission of data packets through fiber-optic cables of uniform index
Authors: Bose Sujit K. 
Published: May 2021

Abstract
The treatment of Maxwell equations show that propagating wave of packets in fiber-optic cables is dispersive, propagating in groups, such that group velocity along certain curves in the frequency-phase velocity diagrams vanishes. It is suggested that stalling of wave groups is responsible, for bursting propagation observed in experimental measurements, causing some delay in transmission. The dispersion equations developed here, are different from those given in texts that are based on “weakly guiding approximation”. The queue of such data packets arriving at a router station is found to have a “raised tail” distribution unlike that of Poisson arrivals. For accounting the property, a Mittag–Leffler function distribution (MLFD) of probability is used following a modification of that for a Poisson process, the tail raising is shown to cause delay in transmission, and its estimate is analysed based on the theory.
Use of virgin/recycled polyethylene blends in rotational moulding
Authors: Cestari Sibele Piedade , J. Martin Peter , R. Hanna Paul , P. Kearns Mark , Mendes Luis Claudio , Millar Bronagh 
Published: May 2021

Abstract
Aiming to further plastics recycling via rotational moulding plastics processing, blends of virgin and recycled polyethylene sourced from post-consumer plastics were developed. Three different kinds of recycled high density polyethylene – from bottles, pipes and mixed household waste – were compounded with virgin medium density polyethylene in an extruder. The ideal amount of recyclate was chosen based upon the impact resistance of different contents (25, 50 and 75%) of recycled plastic with the 50/50 blend found to have the best performance. Compression-moulded and rotationally-moulded samples were analysed through falling dart impact test, flexural test, melt flow rate and differential scanning calorimetry analysis. The impact results of the compression-moulded samples showed an increase in the impact resistance of the blends with a higher melt flow index and lower degree of crystallinity. The rotationally-moulded specimens displayed much lower impact resistance than the pure virgin plastic and a 20–30% reduction in the flexural moduli, which were ascribed to the crystalline structure of the part and issues in the blends’ rotomoulding process. It was concluded that blending virgin and recycled polyethylene for rotational moulding can be an effective way to further plastics recycling inside the Circular Economy context.
The Time Varying Networks of the Interoceptive Attention and Rest
Authors: Martínez Ana Y. , Demertzi Athena , Bauer Clemens C. C. , Gracia-Tabuenca Zeus , Alcauter Sarael , Barrios Fernando A. 
Published: May 2021

AbstractFocused attention to spontaneous sensations is a dynamic process that demands interoceptive abilities. Failure to control it has been linked to neuropsychiatric disorders like illness-anxiety disorder. Regulatory strategies, such as focused attention meditation (FAM), may enhance the ability to control focused attention particularly to body sensations, which can be reflected on functional neuroanatomy. The functional connectivity (FC) related to focused attention has been described, however, the dynamic brain organization associated to this process and the differences to the resting state remains to be studied. To quantify the cerebral dynamic counterpart of focused attention to interoception, we examined fifteen experienced meditators while performing a 20-min attentional task to spontaneous sensations. Subjects underwent three scanning sessions obtaining a resting-state scan before and after the task. Sliding window dynamic FC (DFC) and k-means clustering identified five recurrent FC patterns along the dorsal attention network (DAN), default mode network (DMN), and frontoparietal network (FPN). Subjects remained longer in a low connectivity brain pattern during the resting conditions. By contrast, subjects spent a higher proportion of time in complex patterns during the task than rest. Moreover, a carry-over effect in FC was observed following the interoceptive task performance, suggestive of an active role in the learning process linked to cognitive training. Our results suggest that focused attention to interoceptive processes, demands a dynamic brain organization with specific features that distinguishes it from the resting condition. This approach may provide new insights characterizing the neural basis of the focused attention, an essential component for human adaptability.
Transcribing Greece, Arranging France: Bourgault-Ducoudray’s Performances of Authenticity and Innovation
Authors: Asimov Peter 
Published: May 2021

Louis-Albert Bourgault-Ducoudray (1840–1910), composer, folklorist, and long-time professor of music history at the Paris Conservatoire, dedicated intense energies to the propagation of ancient Greek modes as a modern resource for French composition. Instigated by his 1875 folk-song collection mission in Greece and Anatolia, Bourgault-Ducoudray’s attraction to Greek modes was bolstered by ideological commitments to Aryanism (nourished by his relationship and correspondence with philologist Émile Burnouf), and further reinforced by his observation of “Greek modes” in Russian and Breton folk song.
This article examines how Bourgault-Ducoudray translated his quasi-philological analyses into an artistic agenda through techniques of transcription, arrangement, and composition. Beginning with a close reading of his important collection, Trente mélodies populaires de Grèce et d’Orient (1876), a continuity is established between his transcriptive and compositional practices, with particular attention paid to Bourgault-Ducoudray’s performances of authenticity through calibrated scientific and artistic rhetoric. I then turn to the reception of Bourgault-Ducoudray’s collection by two composers—Alfred Bruneau and Camille Saint-Saëns—who rearranged his Greek songs in different contexts. Treating the songs with remarkable plasticity, they appropriated Bourgault-Ducoudray’s authority to enhance representations of “oriental” and “ancient” worlds, negotiating a balance between scholarly research and artistic integrity. The article concludes by returning to Bourgault-Ducoudray’s work in the 1880s—a period during which the musical and ideological ambitions of his song arrangements were magnified to an operatic scale—culminating in a rereading of his Thamara (1891) in light of his ethnic nationalism.
Analysis of Students' Creative Thinking Ability with Problems Solving in Terms of Adversity Quotient
Authors: Muslim Buchori , Suryaningsih Siti , Aprianti Rizqa Fadhila 
Published: May 2021

AbstractStudents’ difficulties in chemistry subject are the main cause of their low rate to think creatively. Students with high adversity quotient are most likely to overcome the difficulties in finding a solution to answer the creative thinking problems. The objective of this research is to analyze the creative thinking ability in chemistry from the perspective of adversity quotient. The subjects of the study are 72 senior high school students from XII grade in Tangerang. The sampling applies a random sampling technique. Data collection technique is carried out by giving a test about chemical creative thinking skills in the form is essay question with 0,727 realibility scale. Adversity quotient data is obtained using a questionnaire scale with 0,652 realibility scale. The method used in this study is a descriptive qualitative and quantitative method. The result indicates that camper and quitter subjects are classified as creative and climber subjects are classified as very creative. The different aspects of students’ ability in solving problems can be used in mapping students' creative thinking abilities. As a recommendation, to improve creative thinking ability requires a high level of adversity quotient. Therefore, in this research students are expected to explore their creative thinking abilities in the learning process.AbstrakKesulitan siswa pada mata pelajaran kimia menjadikan rendahnya kemampuan berpikir kreatif. Siswa yang memiliki adversity quotient tinggi maka dapat mengatasi kesulitan untuk menemukan solusi jawaban dari soal berpikir kreatif. Tujuan dari penelitian adalah untuk menganalisis kemampuan berpikir kraetif kimia ditinjau dari adversity quotient. Subjek penelitian adalah siswa kelas XII SMA di Kabupaten Tangerang yang sebanyak 72 orang. Pengambilan sampel menggunakan teknik random sampling. Teknik pengumpulan data dilakukan dengan melaksanakan tes kemampuan berpikir kreatif kimia berupa soal uraian dengan realibilitas sebesar 0,727. Data adversity quotient, diperoleh dengan menggunakan skala angket dengan realibilitas sebesar 0,652. Metode yang digunakan adalah metode deskriptif kualitatif dan kuantitatif. Hasil penelitian menunjukkan bahwa subjek camper dan quitter tergolong kreatif dan Subjek dengan climber tergolong sangat kreatif. Perbedaan aspek kemampuan siswa dalam mengatasi kesulitan dapat digunakan dalam memetakan kemampuan berpikir kreatif siswa. Sebagai rekomendasi, dengan memiliki tingkat adversity quotient yang tinggi dapat meningkatkan kemampuan berpikir kreatifnya. Oleh karena itu, Penelitian ini diharapkan siswa dapat mengeksplorasi kemampuan berpikir kreatifnya dalam proses pembelajaran. How to Cite: Muslim, B., Suryaningsih, S., Aprianti, R. F. (2020). Analysis of Students' Creative Thinking Ability with Problems Solving in Terms of Adversity Quotient. TARBIYA: Journal of Education in Muslim Society, 7(2), 217-225. doi:10.15408/tjems.v7i2.15234.
Fiqh Learning Methodology in Responding Social Issues in Madrasa
Authors: Mansir Firman , Karim Abdul 
Published: May 2021

AbstractThis research aims to find out how students in Fiqh learning should have the ability to direct or form themselves in the learning process, what will be studied and to what extent, when, and how they will learn. Thus, students do not just become passive recipients in the learning process itself. In this case, it also emphasizes the importance of emotions, open communication and the values that each student has. This type of research uses a qualitative research methodology with a focus on literature research methods (data collection/sources). The results of this research show that Fiqh subjects in madrasas and public schools that should be able to raise awareness of students in terms of religion after studying Fiqh are increasingly motivated to practice it, but in fact, the students have not been able to adjust the learning maximally in their daily lives. Abstrak enelitian ini bertujuan untuk mengetahui bagaimana siswa dalam pembelajaran Fiqih harus memiliki kemampuan mengarahkan atau membentuk diri sendiri dalam proses pembelajaran, apa yang akan dipelajari dan sejauh mana, kapan, dan bagaimana mereka akan belajar. Dengan demikian, siswa tidak hanya menjadi penerima yang pasif dalam proses pembelajaran itu sendiri. Dalam hal ini juga ditekankan pada pentingnya emosi, komunikasi yang terbuka dan nilai-nilai yang dimiliki setiap siswa. Jenis penelitian ini menggunakan metodologi penelitian kualitatif dengan menitikberatkan pada metode penelitian kepustakaan (pengumpulan / sumber data). Hasil penelitian ini menunjukkan bahwa mata pelajaran Fiqih di madrasah dan sekolah negeri yang semestinya dapat meningkatkan kesadaran siswa dalam hal agama setelah mempelajari Fiqh semakin termotivasi untuk mengamalkannya, namun nyatanya siswa belum mampu menyesuaikan belajar secara maksimal dalam kehidupan sehari-hari mereka. How to Cite: Mansir, F., Karim, A. (2020). Fiqh Learning Methodology in Responding Social Issues in Madrasa. TARBIYA: Journal of Education in Muslim Society, 7(2), 241-251. doi:10.15408/tjems.v7i2.20024.
Family Engagement in Nurturing Students’ Resilience During Remote Learning in COVID-19 Pandemic
Authors: Sururin Sururin , Mahmuda M. C. , Muslim Moh. 
Published: May 2021

AbstractThis research aims (1) to explore the family's role in remote learning practice and (2) to find out what family can do to nurture students' resilience during the COVID-19 pandemic. This study employed qualitative descriptive methodology with a case study approach to obtain and analyse data narratively. The findings of this study are: (1) Family become the observer of students’ resilience and personality development, their observation will determine teachers’ approach in teaching and educating resilience virtue. Their role as facilitator in home learning shows their support and passion to engage with their children’s learning process. (2) Direct assistance during video conferencing is part of collaboration between school and family to participate in resilience-building, but only few parents did so due to diversed backgrounds. AbstrakPenelitian ini bertujuan (1) untuk mengeksplorasi peran keluarga dalam praktik pembelajaran jarak jauh dan (2) untuk mengetahui apa yang dapat dilakukan keluarga untuk memelihara ketahanan siswa selama pandemi COVID-19. Penelitian ini menggunakan metodologi deskriptif kualitatif dengan pendekatan studi kasus untuk memperoleh dan menganalisis data secara naratif. Temuan penelitian ini adalah: (1) Keluarga menjadi pengamat ketahanan dan perkembangan kepribadian siswa, observasi mereka akan menentukan pendekatan guru dalam mengajar dan mendidik ketahanan kebajikan. Peran mereka sebagai fasilitator dalam pembelajaran di rumah menunjukkan dukungan dan semangat mereka untuk terlibat dengan proses pembelajaran anak-anak mereka. (2) Bantuan langsung selama konferensi video merupakan bagian dari kerjasama antara sekolah dan keluarga untuk berpartisipasi dalam pembangunan ketahanan, tetapi hanya sedikit orang tua yang melakukannya karena latar belakang yang berbeda.. How to Cite: Sururin, Mahmuda, M.C., Muslim, M. (2020). Family Engagement in Nurturing Students’ Resilience During Remote Learning in COVID-19 Pandemic. TARBIYA: Journal of Education in Muslim Society, 7(2), 204-216. doi:10.15408/tjems.v7i2.20582.
The indentation size effect of single-crystalline tungsten revisited
Authors: Wang Jin , Volz Tillmann , Weygand Sabine M. , Schwaiger Ruth 
Published: May 2021

AbstractIn this study, we have investigated the indentation size effect (ISE) of single crystalline tungsten with low defect density. As expected, the hardness shows a pronounced increase with decreasing indentation depth as well as a strong strain rate dependence. For penetration depths greater than about 300 nm, the ISE is well captured by the Nix–Gao model in the context of geometrically necessary dislocations. However, clear deviations from the model are observed in the low depth regime resulting in a bilinear effect. The hardness behavior in the low depth regime can be modeled assuming a non-uniform spacing of the geometrically necessary dislocations. We propose that the bilinear indentation size effect observed reflects the evolution of the geometrically necessary dislocation density. With increasing strain rate, the bilinear effect becomes less pronounced. This observation can be rationalized by the activation of different slip systems.Graphic abstract
Intervenções Psicológicas na Psico-Oncologia
Authors: Campos Elisa Parahyba , Rodrigues Avelino Luiz , Castanho Pablo 
Published: May 2021

O objetivo deste trabalho é divulgar a Psico-Oncologia como uma área de conhecimento que ampliou as possibilidades de atendimento ao portador de câncer seu familiar e equipe de saúde. O surgimento da Psico-Oncologia é influenciado por diversos fatores relacionados ao desenvolvimento das ciências, mas não deixa de ser uma necessidade que responde a uma demanda dos últimos anos, quando o câncer não para de atingir cada vez mais pessoas, levando as pesquisas a descobertas intrigantes mas que muitas vezes não explicam o surgimento e a evolução da doença. A Psico-Oncologia nasce enfatizando os fatores psicossociais, biológicos e psicológicos no atendimento ao portador de câncer, e busca também uma compreensão maior dos processos de adoecimento e desenvolvimento da moléstia bem como as implicações na vida familiar dos portadores de câncer.
SYNTHESIS OF SILVER- AND GOLD-N-HETEROCYCLIC CARBENE COMPLEXES INCLUDING STRONG METAL-CARBON BINDING
Authors: KALOĞLU Nazan , ÖZDEMİR İsmail 
Published: May 2021

In this study, the new benzimidazolium salt (1) containing ether functionalized alkyl group as the NHC ligand precursor was synthesized. Ag-NHC complex (2) was synthesized by interaction with Ag2O of this ligand precursor. The Au-NHC complex was synthesized by interaction the [AuCl(PPh3)] complex with the synthesized Ag-NHC complex. The structures of prepared all new compounds were characterized by different spectroscopic methods.
Bu çalışmada, NHC ligand öncüsü olarak eter fonksiyonlu alkil grubu içeren yeni benzimidazol tuzu (1) sentezlendi. Ag-NHC kompleksi (2) bu ligand öncüsünün Ag2O ile etkileştirilmesiyle sentezlendi. Au-NHC kompleksi (3) sentezlenmiş Ag-NHC kompleksi ile [AuCl(PPh3)] kompleksinin etkileştirilmesiyle
sentezlendi. Hazırlanan tüm yeni bileşiklerin yapısı farklı spektroskopik metotlar ile karakterize edildi.