bluuebunny/crossref_metadata_2025 huggingface dataset:
Pseudotumor Cerebri in the Setting of Differentiation Syndrome in a Patient with Acute Promyelocytic Leukemia Treated with All-trans Retinoic Acid During Induction Therapy
Authors: Suwal Barsha , Poudyal Bishesh Sharma , Adhikary Rabindra
Published: November 2021

Introduction: Differentiation syndrome, a well-known complication of all-trans retinoic acid (ATRA) in patients with acute promyelocytic leukemia (APML), can very rarely have ophthalmic manifestations. Pseudotumor cerebri (PC) in the setting of differentiation syndrome (DS) in patients undergoing induction with all-trans retinoic acid has rarely been reported elsewhere. We herein report one such case.
Case Presentation: A 28-year-old, non-obese female diagnosed as acute promyelocytic leukemia underwent induction with all- trans retinoic acid and Idarubicin. On day 4 of the treatment, she developed high grade fever (104 – 105 F), dry cough, hypotension, tachycardia, and tinnitus. Chest X ray showed floppy shadows in bilateral lungs. On physical examination, bilateral lower limb edema was noted. She also experienced sudden weight gain of 5 kilogram in 48 hours. After careful exclusion of systemic infection, she was suspected as having DS. She also noticed a reduction in vision in right eye. On eye examination, her best-corrected visual acuity (VA) was 6/60 in the right eye (RE) and 6/6 in the left eye (LE). Fundus evaluation revealed bilateral disc edema with peripapillary hemorrhages along with slight tortuosity of vessels and a yellowish lesion over the fovea in RE. Suspecting DS, she was treated with injection dexamethasone 10 mg twice daily and all- trans retinoic acid was temporarily discontinued. Immediately after its discontinuation, her headache lessened and vision improved gradually. After 2 weeks, her VA was 6/12 in RE and 6/6 in LE which improved to 6/6 in both eyes at 3 months. The patient was also receiving oral voriconazole for fungal prophylaxis and the potentiation effect of all- trans retinoic acid could thus be explained.
Conclusion: Pseudotumor cerebri associated with all-trans retinoic acid treatment in acute promyelocytic leukemia, even though frequently reported in pediatric patients, is rare in adults. Ophthalmological evaluation is mandatory in all these patients under all-trans retinoic acid therapy.
Concept of 'Central' or 'Axial' Atlantoaxial Instability
Authors: Goel Atul
Published: November 2021

The atlantoaxial joint is the most mobile joint of the spine and is most liable to develop instability. Atlantoaxial instability can be identified on observation of facetal alignment on lateral profile imaging, telltale clinical and radiological evidence and by direct observation of instability by manual manipulation of bones during surgery. Central or axial atlantoaxial instability is when there is no abnormal increase in atlantodental interval on dynamic imaging and there is no dural or neural compression by the odontoid process. Understanding and appropriately treating central or axial atlantoaxial instability can have clinical implications.
On an ‘unannounced polemic’ that lasted a quarter of a century. The K — K mystiﬁcation
Authors: Berkovich E. M.
Published: November 2021

E. Berkovich writes about the polemic around one of the most famous poems about the Great Patriotic War — ‘Felt boots’ [‘Valenki’], more recognisable by its ﬁrst line (‘My comrade, in death throes…’ [‘Moy tovarishch, v smertelnoy agonii…’]). Krasikov published a posthumous collection of poems Black diamond. Poems [ Chyorniy almaz. Stikhotvoreniya] by the war veteran and poet A. Korenev in 1994, including the poem ‘Blizzard. Night…’ [‘Viuga. Noch…’], which had never been published in Korenev’s lifetime and which echoes almost completely ‘Felt boots,’ penned by I. Degen. Ever since then, a number of people, including Korenev’s daughters, have argued that the poem is authored by Korenev alone and was misattributed to Degen, whereas in reality it was Korenev who happened on a handwritten copy of ‘Felt boots,’ passed from hand to hand during the war, and decided to appropriate what hethought an unclaimed poem. Berkovich retraces the history of the argument around ‘Felt boots,’ incorporating into his article extracts from publications by L. Lazarev, who knew Degen well, and his own correspondence with the author of the mystiﬁcation Krasikov and the journalist Rakhlin, and conﬁrms the poem’s attribution to Degen.
Dmitry Smirnov as William Blake’s translator and biographer
Authors: Serdechnaya V. V.
Published: November 2021

The article discusses the versatile talent of Dmitry Smirnov (Sadovsky), a composer and translator, who lived in the UK and died there in 2020. The article addresses the following topics: analysis of Smirnov’s work as William Blake’s translator; examination of the guiding principles behind D. Smirnov’s biography of Blake the artist; and analysis of Smirnov’s part in the adaptation of Blake’s oeuvre to symphonic music. In his lifetime, Smirnov completed and partially published his unique collection of William Blake’s translations into Russian; he authored and published the ﬁrst scholarly biography of Blake in Russian; and composed a great many musical pieces, In a variety of genres, on Blake’s verse. A notable accomplishment of Smirnov’s as a co-creator of a ‘Russian Blake’ is his translation of two monumental prophecies penned by the poet of English Romanticism: Jerusalem and Milton. Regrettably, Smirnov’s work as a translator and biographer is little known in Russia — undeservedly so — although it merits serious attention; therefore, the article seems more than timely.
P. P. Bazhov. The Malachite Box [Malakhitovaya shkatulka]: A scholarly edition
Authors: Belyakov S. S.
Published: November 2021

A review of the ﬁrst scholarly edition of The Malachite Box [ Malakhitovaya shkatulka], a famous collection of tales (skazy) by the Russian writer Pavel Bazhov. Bazhov created his distinctive artistic world, which provided the basis for the subsequent emergence of the unique mythology of the Urals. Bazhov’s skazy are an example of stylised folklore, yet the stylisation is itself rooted in folklore tradition. This scholarly edition of The Malachite Box includes a comprehensive historical, literary and philological commentary. The editors examine the diﬀerences between all nine editions of The Malachite Box published in Bazhov’s lifetime and the ﬁrst publications of the tales and their holographs and discover a number of minor textual discrepancies across all publications in question. The book has the tales arranged chronologically, which oﬀers a chance to follow Bazhov’s creative evolution and get a better understanding of his connection with his time.
A refugee to God. Aleksandr Vvedensky’s spiritual parables
Authors: Baydin V. V.
Published: November 2021

The perception of A. Vvedensky’s work is prone to controversy: he is considered a precursor to absurdist literature; at the same time, his close friend, the poet Y. Druskin, insisted that Vvedensky was religious, and believed his absurdity, instead of representing a lack of meaning, points to a diﬀerent kind of meaning. The article suggests an approach to the hermeneutic reading of the poet’s private symbolic language that helps to revise certain traditional assessments. The author argues that Vvedensky’s mature oeuvre consists of religious and philosophical allegories written in a most extremely absurdist form. At the core of the poet’s brilliant art of the cryptic portrayal of his innermost beliefs is the aesthetics of the absurd. Hence the alogical nature of his poetic dialogues and plays, semantic inversions and contaminations, paradoxes, allusions, aposiopeses, extended metaphors, etc. Subjected to ‘sweeping incomprehension’ are stereotypes of thinking and everyday language practices – from substandard vernacular and colloquialisms to philosophical discourse. Vvedensky’s ‘star of absurdity’ is seen as a symbol of revelation.
Chekhov’s text as a text of life. The ‘anti-theatrical’ stage adaptation of The Seagull [Chayka] by the Hungarian director Árpád Schilling
Authors: Regéczi I.
Published: November 2021

The article considers A. Chudakov’s idea about the signiﬁcance ofanunﬁnished fabula in Chekhov’s works with regard to the theatrical practice of the Hungarian director Á. Schilling. According to Chudakov, Chekhov’s works without an unﬁnished fabula resemble an extract from the character’s life, selected at random. This randomness convinces the reader that the storyline is virtually unembellished poetically. The fabula and the plot of a short story or a play are carefully extracted from the ‘stream of existence,’ which is endless. Chudakov’s assessments of Chekhov’s poetics suggest that a theatrical specialist’s desire to remove the barriers between the stage of Chekhov’s plays and their audience represents a suitable approach to the playwright’s textual world. An appropriate example can be found in a staging of The Seagull [ Chayka] in Hungary in the early 21st c., namely, ÁrpádSchilling’s version in the Krétakör theatre. The author focuses especially on those artistic solutions found by Schilling that enable the aforementioned phenomenon of the vanishing boundaries, art’s expansion into life and, conversely, life’s expansion into art, to be realised during the performance.
ASYMPTOTIC SOLUTION OF THE PROBLEM OF OPTIMAL CONTROL OF SYSTEMS WITH SLOWLY VARIABLE PARAMETERS
Authors:   Kryvyi Rih National University, Mykola Rashevs’kyi
Published: November 2021

Models of non-stationary automatic control systems are differential equations with variable coefficients. Such equations do not integrate in quadratures in the general case. Asymptotic methods are methods of approximate integration of differential equations with variable coefficients. In the article the non-stationary automatic control system with slowly variable parameters is considered. To study this system it is necessary to construct an asymptotic representation of its solution. In the theory of asymptotic integration exist a problem to construction of the asymptotic solution of a system in the presence of a turning point. Special methods have been developed to construct a solution to such systems: Maslov’s canonical operator, the multiphase Kucherenko method, the method of W. Wasow. The purpose of the article is to construct an asymptotic solution of a linear system of differential equations with nonstabilitu spectrum of the main matrix. In this article the asymptotic representation of the solution of the optimal correction problem is constructed. The case of nonstability spectrum of the main matrix and the available of turning points are investigated. Application of the Pontryagin maximum principle to the problem leads to a system with slowly varying coefficients and an nonstable spectrum. Construction of a formal solution of the main system with turning points in the form of a single expression in some cases is possible. The system formed in the process of solving the problem of optimal correction does not allow the mentioned construction. A multiscale method was used to solve this system of equations. Asymptotic estimates for the constructed approximations are given. The studied problem has practical applications in technical and economic systems, in particular in the calculation of the correction of the orbits of artificial satellites. The nonnstability of the spectrum is the cause of the spike phenomenon. Further research may be aimed at finding a unified approach to solving such problems and to ascertain the physical meaning of the turning point in specific systems of automatic control. Keywords: automatic control system, asymptotic solutions, turning point, the problem of optimal correction.
Mammography: Boon or Bane
Authors: Gupta P D
Published: November 2021

With all advancements in drug discoveries and diagnostic technologies incidence of cancer rate should have come down, but it is not so
In-Vitro Fertilization Outcome in Patients with Polycystic Ovary Syndrome: Role of Age and Maternal Body Weight
Authors: Naeiji Zahra , Zademodares Shahrzad , Abbaspour Masoumeh , Anbarluei Maryam , Rahmati Nayereh , Fathi Marzieh
Published: November 2021

Objective: to evaluate the impact of pre-gestational maternal age and body weight on the outcome of IVF in women with PCOS. Design: a retrospective study on women with PCOS undergoing IVF. Methods: Medical records of 200 known cases of polycystic ovary syndrome women treated in a third level referral center by the same therapeutic protocol were evaluated retrospectively. Demographic data, maternal body mass index, hormonal profile (LH, FSH, estradiol, anti-mullerian), IVF cycle parameters and outcome were documented. Patients were classified to three groups based on their body mass index (Normal: 18.5-24.9, overweight: 25-30, obese≥30). IVF cycle parameters and outcome were compared in these 3 groups. Effect of age was also evaluated by comparing the results in patients aged <35 and ≥35. Results: Mean age of patients was 32.5 (±5.2). 72 patients had normal BMI, 85 patients were overweighed and 43 cases were obese. Baseline hormonal profile was similar in 3 groups. Total dose of administered FSH were similar in 3 groups. Number of retrieved oocytes was statistically significant higher in patients with BMI>30 but the number of mature oocytes and number of embryos were statistically lower in this group. Size of follicles showed no statistically significant difference in 3 groups. Clinical pregnancy rate was statistically significant lower in patients with BMI>30 kg/m2 and age>35 years old. Conclusions: BMI>30 and age >35 years old has a statistically significant negative impact on IVF success rate.
Factors Associated With Behavior of Exclusive Breastfeeding to Women Have Baby 6-12 Months in the Work Area of Andalas Health Center
Authors: Vonitania Yollanda , Yulizawati Yulizawati , Amelin Fitrisia
Published: November 2021

In Indonesia target of exclusive breastfeeding is 80% and this target is very difficult to accomplish. The scope of exclusive breastfeeding in West Sumatera (75%), in Padang (70.7%) and in the work area of Andalas Health Center (55.17%). This study aim is to determine factors associated with exclusive breastfeeding in the work area of ​​Andalas Health Center. This type of study is analytic with cross sectional design.The participant of this study is 90 mothers who have infants 6-12 months in the work area of Andalas Health Center. Sampling was proportional random sampling. Data collected using questionnaires. Data analysis using univariate and bivariate with chi square test and significant if p value < 0,05. The study showed exclusive breastfeeding (21,1%), mother have a good knowledge (48.9%), secondary education (51.1%) , unemployed (65.6%), not having breast problem (51.1%), and interested in infant formula promotion (57.8%). The results of bivariate analysis showed a significant relationship between education (p=0.048) and breast problems (p=0,000) and no significant relationship between work (p=0.98) with exclusive breastfeeding. There is a tendency all mothers who have less knowledge and interested in infant formula promotion to not exclusive breastfeeding From the result of this study it can be conclude there is a significant relationship between education, and breast problems with exclusive breastfeeding, no significant relationship between work and exclusive breastfeeding, there is a tendency all mothers who have less knowledge and interested in infant formula promotion to not exclusive breastfeeding. For the next research can add other variables, for health workers to more diligent give counseling and for the community to follow more counseling.
Historico-philosophical Research in Independent Ukraine (expert poll)
Authors:   Hr. Skovoroda Institute of Philosophy, NAS of Ukraine, Yosypenko Serhii , Kozlovskyi Viktor ,   National University of Kyiv-Mohyla Academy, Panych Oleksiy ,   Publishing House “Spirit and Letter” (Kyiv), Terletsky Vitali ,   Hr. Skovoroda Institute of Philosophy, NAS of Ukraine, Khoma Oleg ,   Vinnytsia National Technical University
Published: November 2021

An expert poll of “Sententiae”.
Revival of Interest in Wolff's Philosophy. Theis, R., & Aichele, A. (Hrsg.). (2018). Handbuch Christian Wolff. Wiesbaden: Springer.
Authors:   National Ivan Franko University of Lviv, Pasitschnyk Ihor
Published: November 2021

Review of Theis, R., & Aichele, A. (Hrsg.). (2018). Handbuch Christian Wolff. Wiesbaden: Springer.
Kant and Metaphysics. Laywine, А. (2020). Kant's Transcendental Deduction. A Cosmology of Experience. Oxford: Oxford University Press.
Authors:   the Kant Society in Ukraine, Fedorchenko Juriy
Published: November 2021

Review of Laywine, A. (2020). Kant's Transcendental Deduction. A Cosmology of Experience. Oxford, University Press.
Sistem Pendukung Keputusan Pemilihan Sales Terbaik Menggunakan Metode Rank Order Centroid (ROC) dan Additive Ratio Assessment (ARAS) Berbasis Web
Authors: Nindian Puspa Dewi  , Ubaidi  , Elsi Maharani
Published: November 2021

Setiap tahun, CV. Anugerah Wangi melakukan pemilihan sales terbaik untuk memotivasi para sales dalam memberikan pelayanan dan peningkatan penjualan sepeda motor. Proses pemilihan sales terbaik masih dilakukan secara manual dengan mengumpulkan data seluruh sales dalam 1 tahun. Pekerjaan ini tentu tidak efektif dan efisien. Selain itu, perhitungan yang dilakukan juga menjadi sulit karena mencakup banyak kriteria penilaian. Karena itulah perlu dibuat suatu sistem pendukung keputusan dalam pemilihan sales terbaik pada CV. Anugerah Wangi yang dapat memudahkan pimpinan untuk melakukan proses perhitungan. Sistem Pendukung Keputusan Pemilihan Sales Terbaik dibuat dengan menggunakan metode Rank Order Centroid (ROC) dan Additive Ratio Assessment (ARAS). Penggabungan metode ROC dan ARAS dapat mengoptimalkan terhadap pembobotan dalam setiap kriteria yang digunakan. Adapun kriteria yang digunakan dalam pemilihan sales terbaik yaitu, jumlah penjualan (C1), penilaian pelayanan (C2), jumlah penjualan (C3), masa bekerja (C4) dan kedisiplinan (C5). Dari penelitian ini, dilakukan uji coba terhadap 23 data sales yang kemudian dilakukan perhitungan sehingga mendapatkan hasil rangking teratas yang menjadi sales terbaik yaitu Faizur Rohman dengan nilai 0,916.

Abstract

          Every year, CV. Anugerah Wangi selects the best sales to motivate sales in providing services and increasing motorcycle sales. The process of selecting the best sales is still done manually by collecting data on all sales in 1 year. This work is certainly not effective and efficient. In addition, the calculations made also become difficult because it includes many assessment criteria. That why it is necessary to make a decision support system in selecting the best sales for CV. Anugerah Wangi. So, it can make it easier for leaders to carry out the calculation process. The Best Sales Selection Decision Support System was made using the Rank Order Centroid (ROC) and Additive Ratio Assessment (ARAS) methods. The combination of ROC and ARAS methods can optimize the weighting in each of the criteria used. The criteria used in the selection of the best sales are the number of sales (C1), service assessment (C2), number of sales (C3), years of service (C4), and discipline (C5). From this study, a trial was carried out on 23 sales data which was then calculated so that the top-ranking results were the best sales, namely Faizur Rohman with a value of 0.916.
Sistem Pendukung Keputusan untuk Evaluasi Tingkat Kesejahteraan Masyarakat Menggunakan Metode PROMETHEE
Authors: Masna Wati  , Simbolon R.H. Kimebmen , Widians Joan Angelina , Novianti Puspitasari
Published: November 2021

Salah satu faktor tercapainya kesejahteraan masyarakat yaitu rendahnya tingkat penduduk miskin. Pemerintah berperan penting dalam mensejahterakan masyarakat dan pengentasan kemiskinan. Seleksi tingkat kesejahteraan masyarakat adalah salah satu masalah yang memerlukan keputusan yang tepat agar bantuan disalurkan kepada masyarakat yang membutuhkan tepat sesuai target. Oleh karena itu, dibangun sistem decision support menggunakan metode Promethee. Data penelitian berupa 220 data sampel keluarga dan melibatkan 15 kriteria dalam mengevaluasi tingkat kesejahteraan masyarakat bersumber pada Survei Sosial Ekonomi Nasional oleh Badan Pusat Statistik Provinsi Kalimantan Timur. Sistem yang telah dibangun memberikan output berupa urutan prioritas kesejahteraan masyarakat yang dapat dijadikan pertimbangan bagi pemerintah atau pihak terkait dalam penyaluran bantuan agar tepat sasaran

Abstract

One of the factors in achieving community welfare is the low poverty level. The government has an essential duty in the welfare of society and alleviating poverty. The evaluation of the welfare level is one of the problems that require the right decision so that the social assistance provided to people in need can be right on target. The study aims to deploy a system that utilizes the Promethee method for decision-makers. There is 220 family as the sample data evaluated involves 15 criteria for assessing the community welfare level sourced from the National Socio-Economic Survey by the Statistics of East Kalimantan Province. The decision support system built was able to result in priority order of community welfare level so that it could be a consideration or reference to the government or related agencies in distributing aid to make it right on target.
Investigating the Impact of COVID-19 toward Depression Rate of Indonesian Senior High Schools Teachers
Authors: Malini Helma
Published: November 2021

The COVID -19 pandemic, which has been ongoing for over a year, has become a burden to the world, causing anxiety and depression. The purpose of this study is to investigate the depression and stress levels of senior high school teachers in Indonesia during the COVID-19 outbreak since they have experienced substantial teaching situations change as a result of it. In particular, the changes in their professional, as well as personal lives, pose challenges during the pandemic. This quantitative study distributing questionnaires to 50 high school teachers in Indonesia. The findings indicate that social support is the most significant factor (0,46%) needed to prevent depression and stress among the teachers. Meanwhile, workload and role conflict cover 0,74% and 0,84% respectively of variables that teachers can change with the assumption that both variables exist even before a pandemic arises. This study also reveals that teachers continue to receive less attention and support, especially in terms of their stress and depression coverage. It is because the prevailing perception is that teachers should be the ones giving attention, not the ones receiving it. The study is that to withstand the Pandemic's uncertainty where high school teacher able to minimize and overcome their depressions.
Las otras bienaventuranzas evangélicas
Authors: Céspedes De los Ríos Behitman Alberto
Published: November 2021

El presente trabajo pretende visibilizar estos otros dichos, las otras bienaventuranzas de los evangelios de Mateo, Lucas y Juan, que pertenecen o se acercan a esta categoría, para preguntarnos por la posibilidad de agruparlos en otro discurso evangélico de “macarismos”
Perluasan Market Share UMKM DNK Selumbung Melalui Media Website Dan Fasilitasi Legalitas Produk
Authors:   Universitas Hindu Indonesia, Indonesia, Wijaya Putu Yudy , Wibawa I Putu Sastra ,   Universitas Hindu Indonesia, Indonesia, Suasih Ni Nyoman Reni ,   Universitas Hindu Indonesia, Indonesia, Kawiana I Gede Putu ,   Fakultas Ekonomi, Bisnis dan Pariwisata Universitas Hindu, Indonesia
Published: November 2021

Kelapa merupakan tanaman tropis yang tumbuh hampir di seluruh wilayah Indonesia dan memiliki banyak potensi ekonomi. UMKM DNK Selumbung berusaha memanfaatkan potensi perkebunan kelapa di Desa Selumbung untuk diolah menjadi VCO. Produk VCO dari UMKM DNK Selumbung mulai diminati dan dipasarkan secara konvensional. Oleh karena itu, pengabdian masyarakat ini bertujuan untuk menyediakan website bagi DNK Selumbung yang dapat diakses pada tautan https://dnkselumbung.com/. Website tersebut menjadi media untuk menyebarluaskan informasi mengenai unit usaha dan produk DNK Selumbung, serta dilengkapi dengan menu kontak pemilik. Selain sebagai media promosi, website ini juga membantu konsumen yang ingin membeli produk, serta pihak lain yang berencana untuk bermitra dengan DNK Selumbung (distributor produk). Melalui kegiatan pengabdian masyarakat ini, diberikan pemahaman kepada pemilik UMKM DNK Selumbung mengenai manajerial usaha secara sederhana serta memfasilitasi legalitas produk. Melalui pemanfaatan teknologi serta pemenuhan unsur legalitas usaha, DNK Selumbung diharapkan dapat semakin berkembang.
Efektivitas Pembelajaran Matematika melalui Metode Penemuan Terbimbing Setting Kooperatif
Authors: Tayibu Nur Qalbi , Faizah Andi Nurul
Published: November 2021

AbstrakBerbagai masalah dihadapi siswa dalam proses pembelajaran sehingga hasil belajar siswa rendah. Minat dan motivasi belajar siswa juga kurang. Diperlukan pembelajaran yang mengkondisikan siswa agar aktif belajar. Dengan penggunaan metode penemuan terbimbing setting kooperatif, siswa diharapkan menemukan sendiri pola atau struktur matematika melalui proses pengalaman belajar. Penelitian ini bertujuan mengetahui apakah metode penemuan terbimbing setting kooperatif efektif diterapkan pada pembelajaran matematika. Penelitian eksperimen ini dilakukan dengan sampel sebanyak 50 Siswa kelas VIII SMP Negeri 21 Makassar. Pengumpulan data menggunakan tes hasil belajar, lembar observasi, dan angket respon siswa. Analisis yang digunakan yaitu analisis deskriptif dan inferensial. Hasil analisis data yaitu metode penemuan terbimbing setting kooperatif lebih efektif dibandingkan metode konvensional, dapat dilihat dari hasil yang diperoleh kelas eksperimen lebih baik dibandingkan kelas kontrol pada tes hasil belajar, angket dan respon siswa. Metode penemuan terbimbing dengan menggunakan setting kooperatif sangat cocok digunakan pada penelitian pembelajaran matematika karena dapat melihat sejauh mana siswa aktif belajar, minat, motivasi dan hasil belajar siswa. The Effectiveness of Learning Mathematics through Guided Invention Methods of Cooperative Setting AbstractVarious problems are faced by students in the learning process so that the student’s learning outcomes are low. The interest and motivation of the students in the learning are also lacking. Learning is required who students condition to be active in the study. With the use of the guided discovery method of settings cooperative, students are expected to discover their mathematical patterns or structures through the learning experience process. This study aims to find out that the method of discovery guided cooperative settings is effectively applied to student math learning. This experimental research was conducted with a sample of as many as 50 students of SMP Negeri 21 Makassar. Data collection using test results of learning, observation sheets, and student questionnaire responses. The analysis used is descriptive and inferential. The results of the data analysis show that the guided discovery method of a cooperative setting is more effective than conventional methods, which can be seen from the results obtained by the experimental class better than the control class on the test. The guided discovery method by using cooperative settings is very suitable in the use of mathematics learning research because we can see the extent to which students are actively learning, the extent of interest, motivation, and learning outcomes of students.
Meningkatkan Kemampuan Pemahaman Matematis Siswa SMP melalui Pendekatan Kontekstual
Authors: Sunarto Muhammad Trisapto , Laa Sonia Putri Yesmaya Oria , Mahtuum Zanjabila Ar-rahiiqil , Siagian Gabriel Torang , Afrilianto M.
Published: November 2021

AbstrakPenelitian ini merupakan penelitian tindakan kelas (PTK) dengan tujuan mengetahui pengaruh pendekatan kontekstual terhadap peningkatan pemahaman matematis siswa. Subjek dalam penelitian ini  adalah siswa MTs pada salah satu sekolah di Cimahi sebanyak 20 orang siswa. Penelitian ini dilakukan untuk mengetahui sejauh mana siswa mampu memahami pembelajaran materi SPLDV dengan menerapkan pendekatan kontekstual. Penelitian ini dilakukan menggunakan model penelitian spiral dimana penelitian akan dihentikan jika peneliti sudah mendapatkan tujuannya. Peneliti melakukan 2 siklus pembelajaran yang pada setiap siklusnya peneliti dinilai oleh observer. Hasil penelitian ini menunjukan bahwa dalam siklus 1 aktivitas guru memperoleh predikat baik namun, aktivitas siswa masih dalam kategori kurang. Sehingga hasil ketuntasan siswa dalam belajar masih dibawah KKM. Oleh karena itu, peneliti melakukan siklus 2 dimana pada siklus ini terjadi peningkatan baik aktivitas guru, siswa, maupun ketuntasan belajar siswa. Yang memperoleh predikat sangat baik dan baik.  AbstractThis research is a Classroom Action Research with the aim of knowing the influence of contextual approaches on improving students' mathematical understanding. The subjects in this study were MTs at one of cimahi's 20 schools. This research was conducted to find out the extent to which students are able to understand spldv material learning by applying a contextual approach. This study was conducted using a spiral research model where the research will be discontinued if the researcher has got his goal. Researchers conducted two learning cycles that each cycle was assessed by the observer. The results of this study showed that in cycle 1 teacher activity obtained good predicate however, student activity is still in the category of less. So the results of students' completed learning are still under KKM. Therefore, researchers conducted cycle 2 where in this cycle there was an increase in both teacher activity, students, and student learning completeness. Who earned a very good and good predicate.
Perbandingan Kemampuan Penalaran Deduktif Matematis Melalui Model PBL dan IBL Berdasarkan KAM
Authors: Indah Puspita , Nuraeni Reni
Published: November 2021

AbstrakKemampuan penalaran deduktif matematis yang dimiliki oleh siswa masih rendah. Sehingga perlu upaya untuk meningkatkan kemampuan penalaran deduktif matematis siswa salah satunya menggunakan model Problem Based Learning (PBL) dan model Inquiry Based Learning (IBL). Adapun tujuan dari penelitian ini adalah untuk mengetahui perbandingan kemampuan penalaran deduktif matematis antara siswa yang mendapatkan model PBL dengan IBL berdasarkan Kemampuan Awal Matematis. Metode penelitian yang digunakan adalah kuasi eksperimen dengan populasi seluruh siswa kelas XI di SMA Negeri 17 Garut. Sampel pada penelitian ini sebanyak dua kelas yaitu kelas XI-MIPA 1 sebanyak 34 siswa sebagai kelas eksperimen I yang mendapat model PBL dan kelas XI-MIPA 2 sebanyak 34 siswa sebagai kelas eksperimen II yang mendapat model IBL. Instrumen penelitian yang digunakan berupa tes uraian. Berdasarkan hasil analisis secara statistik diperoleh kesimpulan bahwa kemampuan penalaran deduktif matematis siswa yang memperoleh model PBL lebih baik daripada siswa yang memperoleh model IBL, Tidak terdapat perbedaan kemampuan penalaran deduktif matematis siswa dengan Kemampuan Awal Matematis tinggi, sedang, dan rendah antara yang memperoleh model Problem Based Learning dan Inquiry Based Learning. Comparison of Mathematical Deductive Reasoning Abilities between Students Who Get PBL and IBL Models Based on KAMAbstractMathematical deductive reasoning ability is one of the basic abilities that must be possessed by students. The fact shows that the mathematical deductive reasoning abilities possessed by students are still low. So it needs efforts to improve students' mathematical deductive reasoning skills, one of which is using the Problem Based Learning (PBL) model and the Inquiry-Based Learning (IBL) model. The purpose of this study is to determine the comparison of mathematical deductive reasoning abilities between students who get PBL and IBL models based on Mathematical Initial Ability. The research method used was quasi-experimental with a population of all class XI students at SMA Negeri 17 Garut. The sample in this study consisted of two classes, namely class XI-MIPA 1 as many as 34 students as the experimental class I who received the PBL model, and class XI-MIPA 2 as many as 34 students as the experimental class II who received the IBL model. The research instrument used was a test description. Based on the results of statistical analysis, it is concluded that the mathematical deductive reasoning ability of students who get the PBL model is better than students who get the IBL model. Learning and Inquiry-Based Learning.
Kesulitan Siswa dalam Mengerjakan Soal-soal Eksponen dan Logaritma
Authors: Gunawan Meta Silvia , Fitra Dian
Published: November 2021

AbstrakFakta terdapat kesulitan dalam mengerjakan soal-soal eksponen dan logaritma menjadi latar belakang penelitian ini. Tujuan penelitian yaitu melihat kesulitan siswa dalam mengerjakan soal-soal eksponen dan logaritma. Subyek penelitian adalah 33 siswa di SMK Baiturrahim Jambi yang mengerjakan 7 soal materi eksponen dan logaritma. Selanjutnya dipilih 6 siswa yang masing2 mendapat skor sedang dan rendah untuk diwawancarai terkait kesulitannya dalam menyelesaikan soal tersebut. Metode kualitatif menjadi metode yang digunakan dalam penelitian. Pengumpulan data penelitian melalui Teknik observasi, tes soal, dan wawancara. Teknik analisis data yang dilakukan antara lain reduksi data, pengumpulan data, dan penarikan kesimpulan. Hasil tes siswa menunjukkan bahwa kesalahan terbanyak terjadi pada tahap transformation, dan process skill. Wawancara kemudian dilakukan untuk menggali lebih dalam faktor yang mempengaruhi kesulitan siswa. Ketiga faktor tersebut yakni faktor pengalaman, efektif, dan kognitif. Faktor kognitif menjadi faktor yang paling berpengaruh. Faktor kognitif sangat bergantung pada pemahaman siswa terhadap materi pada soal eksponen dan logaritma. AbstractThe fact that there are difficulties in working on exponential and logarithmic problems is the background of this research. The research objective was to find out how difficult it was for students to solve exponential and logarithmic test items. The subjects used were 33 students of SMK Baiturrahim Jambi for doing the test, then 6 students were selected to be interviewed regarding their difficulties in solving those items. The research approach used in this analysis was qualitative. Observation, assessments, and interviews were used to gather data for this study. Data reduction, data collection, and conclusion drawing were the data analysis methods used. The results of the students' tests showed that most mistakes occurred in the transformation stage and process skills. Moreover, an interview was also conducted to know deeper into the factors that influenced students’ difficulties. These three factors were experiential, affective, and cognitive factors. The cognitive factor was the most influential factor. The cognitive factor really depended on students' understanding of the material on the exponent and logarithmic test.
Uji Kelayakan Modul Trigonometri Berbasis Ajaran Tamansiswa
Authors: Taufiq Irham , Agustito Denik
Published: November 2021

AbstrakBerdasarkan hasil observasi di Prodi Pendidikan Matematika UST Yogyakarta terdapat beberapa masalah pada proses pembelajaran salah satunya yaitu belum tersedianya modul yang berbasis ajaran Tamansiswa. Tujuan penelitian adalah untuk mengembangkan modul Trigonometri berbasis ajaran Tamansiswa dan mencari tahu tingkat kelayakan modul tersebut. Metode penelitian pengembangan dengan model ADDIE yang melalui 5 tahapan yaitu Analysis, Design, Development, Implementation, dan Evaluation. Pada penelitian ini dibatasi sampai tahap Development. Penelitian dilakukan di Prodi Pendidikan Matematika UST. Subjek penelitian adalah mahasiswa yang mengambil mata kuliah Trigonometri pada Semester Gasal Tahun Akademik 2020/2021 yaitu 50 orang. Teknik pengumpulan data menggunakan angket dan wawancara yaitu angket validasi untuk validator ahli materi dan ahli modul. Teknik analisis data secara deskriptif kualitatif dan kuantitatif. Hasil yang dicapai adalah telah berhasil dikembangkan modul Trigonometri berbasis ajaran Tamansiswa. Modul yang dikembangkan ini telah memenuhi kelayakan sesuai dengan hasil validasi ahli modul dan materi dengan hasil validator sangat baik. AbstractBased on the results of observations at the UST Yogyakarta Mathematics Education Study Program, there are several problems in the learning process, one of which is the unavailability of modules based on Tamansiswa teachings. The research objective was to develop a Trigonometry module based on Tamansiswa teachings and to find out the feasibility level of the module. The development research method uses the ADDIE model through 5 stages, namely Analysis, Design, Development, Implementation, and Evaluation. This research is limited to the Development stage. The research was conducted at the UST Mathematics Education Study Program. The research subjects were 50 students taking the Trigonometry course in the Odd Semester of the Academic Year 2020/2021. Data collection techniques used questionnaires and interviews, namely validation questionnaires for material expert validators and module experts. The data analysis technique is descriptive qualitative and quantitative. The result that has been achieved is that the Trigonometry module based on Tamansiswa teachings has been successfully developed. This developed module has met the feasibility by the results of validation by module experts and material with very good validator results.
Analisis Kesesuaian Materi Himpunan Buku Teks Siswa Matematika Kelas VII terhadap Kurikulum 2013
Authors: Murniati Sri , Roza Yenita , Maimunah Maimunah
Published: November 2021

AbstrakBuku teks merupakan sarana pendidikan yang standar mutunya perlu diatur. Tetapi kenyataannya guru masih memiliki keluahan mengenai buku siswa Kurikulum 2013. Tujuan penelitian adalah menganalisis kesesuaian Bab Himpunan pada Buku Siswa Matematika untuk SMP/MTs Kelas VII Kurikulum 2013 Edisi Revisi yang ditulis oleh Atang Supriadi dan diterbitkan oleh Grafindo Media Pratama tahun 2019 dengan Kurikulum 2013. Jenis penelitian adalah penelitian kualitatif deskriptif dengan instrumen sesuai dengan 4 kriteria Kurikulum 2013. Instrumen yang digunakan adalah lembar penskoran analisis kesesuaian bab himpunan. Metode pengumpulan data yang digunakan adalah metode dokumentasi dan observasi. Hasil analisis diperoleh 91,67% untuk  kesesuaian dengan SKL, kategori sangat baik; 87,5% kesesuaian dengan pendekatan saintifik, kategori sangat baik; 81,25% kesesuaian dengan penilaian autentik, kategori baik; dan 90,9% kesesuaian dengan kelayakan materi, kategori sangat baik. Buku teks sudah cukup baik dijadikan sebagai sumber referensi yang digunakan dalam pembelajaran matematika, walaupun ada beberapa kekurangan atau ketidaksesuaian dengan Kurikulum 2013. AbstractTextbooks are educational facilities whose quality standards need to be regulated. But the fact is that teachers still have concerns about the 2013 Curriculum student books. The research aims to analyze the suitability of the Chapters of the Association of Mathematics Student Books for Class VII SMP / MTs of the Revised 2013 Curriculum written by Atang Supriadi and published by Grafindo Media Pratama in 2019 with the 2013 Curriculum The type of research is descriptive qualitative research with instruments by the 4 criteria of the 2013 Curriculum. The instrument used is a score sheet for the set of chapter conformity analyses. Data collection methods used are documentation and observation methods. The analysis results obtained 91.67% for conformity with SKL, very good category; 87.5% conformity with the scientific approach, very good category; 81.25% conformity with authentic assessment, good category; and 90.9% conformity to the eligibility of the material, very good category. Textbooks are good enough to be used as a reference source used in mathematics learning, even though there are some deficiencies or inconsistencies with the 2013 Curriculum.
Literasi Matematika Siswa IPS dalam Menyelesaikan Soal PISA Konteks Saintifik
Authors: Purnomo Bagus Wahyu , Sari Anisa Fatwa
Published: November 2021

AbstrakHasil penelitian literasi matematika di Indonesia tidak secara spesifik mengungkap literasi matematika siswa dengan mempertimbangkan latar belakang keilmuan siswa. Penelitian ini bertujuan untuk mendeskripsikan kemampuan literasi matematika siswa IPS dalam menyelesaikan soal PISA. Literasi matematika yang diungkap berfokus pada pemahaman siswa IPS terhadap konteks saintifik. Penelitian deskriptif ini melibatkan 3 siswa IPS di salah satu SMA di Jawa Timur. Setiap subjek penelitian yang memiliki tingkat kemampuan matematika berbeda diberikan soal tes kemampuan literasi matematika kemudian diwawancarai. Hasil tes dan wawancara dianalisis menggunakan kerangka kerja PISA. Hasil penelitian menunjukkan bahwa siswa IPS memiliki tingkat pemahaman yang baik tentang konteks saintifik pada soal PISA. Dari 3 soal yang diberikan, siswa IPS hanya terkendala di satu soal sehingga tidak semua indikator pemahaman terhadap konteks PISA dapat dipenuhi oleh dua siswa. Mathematical Literacy of Social Studies Students in Solving PISA Questions in the Scientific ContextAbstractThe results of research on mathematical literacy in Indonesia do not specifically reveal students' mathematical literacy by considering students' scientific backgrounds. This study aims to describe the mathematical literacy skills of social studies students in solving PISA questions. The mathematical literacy revealed focuses on the social studies students' understanding of the scientific context. This descriptive study involved 3 social studies students in one high school in East Java. Each research subject who has a different level of mathematical ability is given a mathematical literacy ability test question and then interviewed. The results of the tests and interviews were analyzed using the PISA framework. The results showed that social studies students had a good level of understanding of the scientific context on PISA questions. Of the 3 questions given, social studies students were only constrained in one question so that not all indicators of understanding the PISA context could be met by two students.
Desain Modul Berbasis Model Discovery Learning untuk Kemampuan Pemahaman Matematis Siswa
Authors: Arimurti Ida , Praja Ena Suhena , Muhtarulloh Fahrudin
Published: November 2021

AbstrakPenelitian ini bertujuan untuk mendeskripsikan learning obstacle, mendesain bahan ajar yang valid, dan mendeskripsikan learning obstacle setelah implementasi bahan ajar. Metode yang digunakan pada penelitian ini adalah metode kualitatif dan kuantitatif. Metode kualitatif untuk analisis learning obstacle dan bahan ajar, sedangkan metode kuantitatif untuk mengetahui keseragaman pendapat. Subjek dalam penelitian ini adalah 31 siswa kelas VIII C SMP Negeri 1 Plered untuk identifikasi learning obstacle awal dan 32 siswa kelas IX A SMP Negeri 1 Plered untuk identifikasi learning obstacle dan kemampuan pemahaman matematis siswa. Desain penelitian yang digunakan berupa desain didaktis (Didactical Design Research). Hasil penelitian ini menunjukan bahwa terdapat 8 learning obstacle siswa terkait materi operasi bentuk aljabar. Validasi bahan ajar modul matematika dilakukan oleh 5 validator (3 dosen FKIP Universitas Swadaya Gunung Jati dan 2 guru matematika). Berdasarkan hasil validasi tersebut dapat disimpulkan bahwa bahan ajar modul operasi bentuk aljabar berbasis kemampuan pemahaman matematis siswa dengan model discovery learning diperoleh bahan ajar siswa layak digunakan dalam proses pembelajaran, serta bahan ajar pedoman guru layak digunakan pula.Kata Kunci: Learning obstacle, aljabar, kemampuan pemahaman matematis, desain didaktis. Designing Module Based on Discovery Learning Models for Students' Mathematical Understanding AbilityAbstractThis study aims to describe learning obstacle students, designing instructional materials, and describing learning obstacle students after the implementation of teaching materials. The method used in this study is qualitative and quantitative methods. Qualitative methods for the analysis of obstacle learning and teaching materials, while the quantitative method to find out the uniformity of opinion. The subjects in this study were 31 students of class VIII C of SMP 1 Plered to identify the initial obstacle learning and 32 students of class IX-A of SMP 1 Plered to identify obstacle learning and students' mathematical understanding skills. The research design used is in the form of didactic design (Didactical Design Research). The results of this study indicate that there are 8 learning obstacle students related to algebraic form operating material. Validation of mathematics module teaching materials was carried out by 5 validators (3 lecturers of FKIP Swadaya Gunung Jati University and 2 mathematics teachers). Based on the results of the validation, it can be concluded that the algebraic form operating module teaching materials based on students' mathematical understanding ability with discovery learning models obtained that they are suitable for learning, and the teacher's guideline teaching material also.Keywords: Learning obstacle, algebraic, mathematical understanding ability, Didactical Design Research.
Perbandingan Kemampuan Pemahaman Matematis Siswa melalui Auditory Intellectualy Repetition dan Student Teams Achievement Division
Authors: Ridia Noni Siti , Afriansyah Ekasatya Aldila
Published: November 2021

AbstrakKondisi pembelajaran saat ini cenderung kurang melibatkan siswa dalam proses pembelajaran meskipun siswa tampak mengikuti pembelajaran matematika dengan baik serta kemampuan pemahaman matematis siswa masih tergolong rendah. Strategi yang dapat melibatkan siswa dan meningkatkan kemampuan pemahaman dalam pembelajaran diantaranya model pembelajaran Auditory Intellectually Repetition dan Student Teams Achievement Division. Penelitian ini menggunakan metode penelitian kuasi eksperimen dengan desain Nonequivalent control group design. Sampel penelitian yang diambil sebanyak 59 orang dari dua kelas, yaitu kelas VII-D menggunakan model pembelajaran Auditory Intellectually Repetition sebanyak 29 orang dan kelas VII-E menggunakan model pembelajaran Student Teams Achievement Division sebanyak 30 orang. Instrumen yang digunakan yaitu tes kemampuan pemahaman matematis dan angket skala sikap. Hasil penelitian menunjukkan bahwa kemampuan pemahaman matematis siswa yang mendapatkan model pembelajaran Auditory Intellectually Repetition tidak lebih baik daripada siswa yang mendapatkan model pembelajaran kooperatif tipe Student Teams Achievement Division.Kata Kunci: kemampuan pemahaman matematis, Auditory Intellectually Repetition, Student Teams Achievement Division, kuasi eksperimen. Comparing Students' Understanding Abilities through the Auditory Intellectually Repetition and the Student Teams Achievement Division AbstractThe current learning conditions tend to involve fewer students in the learning process even though students seem to follow mathematics learning well and the students' mathematical understanding ability is still relatively low. Strategies that can involve students and improve the ability to understand in learning include the Auditory Intellectually Repetition learning model and Student Teams Achievement Division. This research method uses quasi-experimental research with Nonequivalent control group design. The research sample was taken as many as 59 people from two classes, namely class VII-D using the Auditory Intelligence Repetition learning model as many as 29 people and class VII-E using 30 students Teams Achievement Division learning model. The instrument used is a mathematical understanding ability test and attitude scale questionnaire. The results showed that the students' mathematical comprehension ability who received the Auditory Intellectually Repetition learning model was no better than the students who received the cooperative learning model of Student Teams Achievement Division. Keywords: Mathematics Understanding Ability, Auditory Intellectually Repetition, Student Teams Achievement Division, quasi-experiment.