bluuebunny/crossref_metadata_2025 huggingface dataset:
Assessment of different management options used in morbidly adherent placenta and pregnancy outcomes
Authors: Tawfik Waleed
Published: November 2021

The aim of this work is evaluation of different management options for patients with morbidly adherent placenta and its effect on pregnancy outcomes to find the best method of management to decrease morbidity and mortality. In this prospective study, there were 42 patients diagnosed as having morbidly adherent placenta previa and hospitalized between January 2019 to February 2020. Different management options performed to patients with morbidly adherent placenta previa were recorded, blood loss was estimated for each patient, operative procedures, maternal and fetal outcome was recorded. The results showed the following: Different methods were tried to preserve the uterus including bilateral uterine artery ligation in 13 (59%) cases, bilateral ovarian artery ligation in 3 (13.6%) cases, bilateral internal iliac artery ligation in 3 (13.6%) cases, intrauterine tamponade in 4 (18.1%) cases and hemostatic sutures in placental bed in 11(50%) cases, while B-lynch suture was not done, while procedures which were performed to control pelvic hemorrhage after hysterectomy included internal iliac artery ligation in 8 (27.5%) cases, pelvic packing in 5 (17.2%) cases and internal iliac balloon inflation to control hemorrhage in 1 (3.4%) case. The postoperative complications were DIC occurred in 2 patients (4.8%), ICU admission occurred in 5 cases (11.9%), two cases required reoperations, one patient (2.4%) had wound infection, Postpartum collapse occurred in 2 case (4.8%). Pulmonary embolism occurred in 1 case (2.4%), Median duration of hospital stay was 4 days (range: 2-25).
Subcutaneous Antibiotic Irrigation to Prevent Wound Infection in Obese Patients Undergoing Cesarean Section
Authors: M. Maaty Aliaa , H. Yehia Amr , M. Abdelaleem Mohamed , Abd El-Fattah Mohammed A.
Published: November 2021

Background: Surgical site infections (SSIs) pose considerable morbidity and account for up to 20% of all nosocomial infections in surgical patients Aim of the Work: to determine the efficacy & safety of irrigation of subcutaneous tissue by Gentamicin for caesarean section Incision in reducing the risk of post-caesarean wound complications among obese women compared with placebo. Patients and Methods: This prospective randomized clinical trial study was conducted on total 132 obese patients who underwent elective cesarean section at Ain Shams University Maternity hospitals. This study was conducted on obese women undergoing caesarean section at Ain Shams University Maternity Hospital with the following inclusion and exclusion criteria. Patients were distributed randomly into 2 groups using a computer based program: Group (A) N = 66: CS with Irrigation of subcutaneous tissue by placebo (200 ml of saline 0.9 %). Group (B) N = 66: CS with irrigation of subcutaneous tissue by Gentamicin solution ( 1mg/kg gentamicin in 200 ml of saline 0.9%). Results: The results of this study revealed that the rate of SSI was less in gentamycin (3%) (n=2/66) than control group (4.5%) (n=3/66) with no statistical significance between them . postoperative hospital stay and readmission rate due to SSI for the gentamycin group were also shorter but not statistically different in compared to the control group. Applying local gentamycin antibiotic irrigation during wound closure after cesarean section in obese patients is not recommended. NO role of local gentamycin irrigation in subcutaneous tissue in prevention of wound surgical site infection. Conclusion: as evident from the current study, In obese women undergoing elective CS , wound irrigation with Gentamicin is not superior to wound irrigation with placebo (saline 0.9) regarding efficacy & safety.
The effect of wet-cupping therapy on menopause specific quality of life: A randomized-controlled trial
Authors: Gokgoz Nurcan , Pinar Gul
Published: November 2021

Purpose: The purpose of the study was to evaluate the effectiveness of wet-cupping therapy (CT) on menopause specific quality of life (MENQOL). Methods: This study was conducted with randomized controlled pretest, and posttest method between July 2015 and July 2016 at a Gynecology Outpatient Clinic of University Hospital in Ankara, Turkey. Intervention group (n=30) received wet CT while control group (n=30) did not receive any therapy. Both groups were measured quality of life using MENQOL scale before and two weeks after wet CT. Results: The women’s age ranged from 45 to 60 years. Baseline characteristics were similar in the both groups. Women treated with wet CT showed significant improvements in their vasomotor, physical and sexual symptoms (p<0.001). No significant effect was found for pshysco-social area (p>0.05). No adverse effects were recorded after treatment. Conclusion: Wet CT can be considered as an effective method for reducing of menopausal symptoms. In conclusion, this study provides preliminary data on the effectiveness of various symptoms in postmenopausal period. However, further with larger sample size evidence-based trials are needed in order to confirm these results for improving MENQOL.
Meister Eckhart: Principles of his Mysticism and Metaphysics
Authors:   Ukrainian Free University (Munich, Germany), Pietsch Roland
Published: November 2021

Meister Eckhart’s mysticism of the ground of the soul is considered as the inner connection between God and man. The ground of the soul and the ground of God are in reality one ground. Author argues that the term “Ground,” for Meister Eckhart, refers to the uncreated and eternal in the soul, which is also called the divine spark. In this detachment and in this Ground, the birth of God takes place, the unio mystica, which denotes the divinisation of the human being. Meister Eckhart describes the path into this mystical unio as a path of detachment and abandonment or cutting off. Finally, Eckhart’s famous poem Granum Sinapis (mustard seed) is presented as a poetic summary of his mysticism of union with the highest reality of God.
Wittgenstein and Phenomenology: Controversies of the French Interpretation
Authors:   Hr. Skovoroda Institute of Philosophy, NAS Ukraine, Yosypenko Oxana
Published: November 2021

The author of the article focuses on the matter of Wittgenstein's philosophy reception in France. The reception of Wittgenstein's philosophy was quite late and led to different, sometimes opposite interpretations of his thought, even among French analytical philosophers. Applying a sociological approach to the problem of reception, the author identifies factors that hindered the penetration of the ideas of analytical philosophy in France, including the powerful institutionalization of philosophy in France with its inherent traditionalism and conservatism, fully expressed national character of French philosophy, as well as the extremely polemical character of French analytical philosophy, the transformation of the choice of this tradition of philosophizing into an ethical and political choice. These factors are illustrated by an analysis of Wittgenstein's conflicting interpretation of Jacques Bouveresse and Sandra Laugier. If the first creates an image of Wittgenstein as Anti-Husserl, blaming the phenomenologist for ignoring ordinary language, the second proposes a phenomenological reading of Wittgenstein's ideas using the philosophy of ordinary language. The article shows how opposing interpretations of Wittgenstein's philosophy reproduce the internal conflicts of the French philosophical field.
The History of Philosophy and the Practical Philosophy in Martha Nussbaum’s New Book. Nussbaum, M. (2019). The Cosmopolitan Tradition: A Noble But Flawed Ideal. Cambridge, MA.: Harvard University Press.
Authors:   Taras Shevchenko National University of Kyiv (Ukraine), Khoma Vsevolod
Published: November 2021

Review of Nussbaum, M. (2019). The Cosmopolitan Tradition: A Noble But Flawed Ideal. Cambridge, MA.: Harvard University Press.
Ethics in research practices of the 60's – 80's. Part I
Authors: Malakhov Victor , Dmytrenko Sofia ,   Taras Shevchenko National University of Kyiv, Zaichenko Evgenia ,   Taras Shevchenko National University of Kyiv, Simoroz Olga ,   Taras Shevchenko National University of Kyiv
Published: November 2021

Interview of Olga Simoroz, Sofia Dmitrenko, Evgenia Zaichenko with Viktor Malakhov on the development of ethics as a philosophical discipline in Ukraine of the 60's - 70's.
Development of a Low Cost Eco-Friendly Minimum Quantity Lubrication System for Machining Processes
Authors: Ramanathan Arunachalam , Al Rumhi Sumaya , Al Hamimi Noor , Al Ajmi Shurooq
Published: November 2021

Recently all environmental worries are calling for reducing the usage of fluids in machining operations. One of the promising solutions that appeared lately is minimum quantity lubrication (MQL). This research aimed to develop an eco-friendly cooling system for a lathe machine and assess its performance. After considering the customer needs, the needs were translated into engineering specifications in the conceptual design phase, and then the quality function deployment was developed. Three concepts were generated and evaluated considering the selection criteria, and a final concept was selected using the decision matrix method. Following this, a detailed design and fabrication of the sub-systems such as the oil tank and a structure accommodate all the components. The developed system was tested on six different workpiece samples to compare the MQL system with the conventional one. In general, the MQL system resulted in lower surface roughness values as well as lower tool wear.
Kinetic Study of Adsorption Active Carbon Cassava Skin for Removal of Acetic Acid from Aqueous Solution
Authors: Hartono Tri , Murdiningsih Hastami , HR Yuliani
Published: November 2021

The amount of liquid wastes containing acetic acid found from food industry such as tofu home industry released is relatively high and pollutes water quality and also environment nearby. Several methods reducing pollutant in liquid wastes are available, one of which is adsorption using carbon as an adsorbent. The production of cassava in Indonesia was about 23.936 tons in year 2013 which produced cassavaâ€™s skin wastes about 2.393 tons. Mostly these cassavaâ€™s skin wastes containing around 59.31% carbon is disposed as garbage. This research is to develop more on reducing acetic acid containing in liquid waste by carbon active from cassavaâ€™s skin with variation of particle sizes, reaction times and acetic acid liquid waste concentrations, and also to study the kinetic reaction of cassava skin active carbon adsorbing acetic acid between Freundlich and Langmuir isotherm equations. The result shows the kinetic adsorption follows Freundlich isotherm equation with maximum capacity ofÂ Â  Cassava skin active carbon 0.7 mg/g at particle size of adsorbent of 0.3375 mm and reaction time of 105 minutes.
Membangun Toleransi Antar Umat Beragama Sebagai Tanggung Jawab Sosial Kehidupan Kekristenan di Era Pandemi Covid 19: Studi Kasus Masyarakat Rusunawa Rawabebek
Authors: Eunike Pratiwi , Putrawan Bobby Kurnia
Published: November 2021

Inklusivisme dalam agama-agama salah satunya ditandai dengan adanya toleransi antar umat beragama. Toleransi tujuannya untuk bekerjasama membangun peradaban bangsa juga merupakan modal sosial untuk terciptanya integrasi bangsa dengan membentuk relasi harmonis antar umat beragama. Selain itu dalam perspektif kekristenan membangun toleransi merupakan tanggung jawab sosial dan landasan untuk terjadinya pembaruan tatanan sosial melalui kehidupan orang kristen yang akan menghasilkan perbaikan dan menjawab persoalan-persoalan sosial masyarakat secara khusus dalam konteks pandemic Covid 19. Tujuan penelitian ini untuk mendeskripsikan toleransi antar umat beragama sebagai tanggung jawab sosial kekristenan di era pandemic Covid 19. Metode penelitian yang digunakan adalah kualitatif deskriptif dan data-data diambil dari fenomena yang ada di lingkungan masyarakat rusunawa rawa bebek dan wawancara dengan warga dari berbagai latar belakang serta dilengkapi buku-buku dan jurnal-jurnal yang mendukung untuk penelitian. Hasil penelitian menunjukkan adanya toleransi antar umat beragama yang dideskripsikan melalui hubungan yang harmonis dan kerjasama dalam mengatasi pandemic Covid 19 serta dampaknya pada masyarakat Rusunawa di Rawabebek.
Analisis Kemampuan Pemecahan Masalah Matematis pada Materi Kubus dan Balok di SMP
Authors: Hermawati Hermawati , Jumroh Jumroh , Sari Eka Fitri Puspa
Published: November 2021

AbstrakKemampuan pemecahan masalah tidak lepas dari kegiatan belajar mengajar pada umumnya karena keberhasilan seseorang terhadap sesuatu yang dihadapi tidak lepas dari matematika. Penelitian ini bertujuan untuk mengetahui kemampuan pemecahan masalah matematis peserta didik kelas IX di SMP Negeri 15 Palembang. Sampel pada penelitian ini di ambil secara acak yaitu peserta didik kelas IX.1 berjumlah 31 peserta didik yang dilakukan di SMP Negeri 15 Palembang tahun Pelajaran 2019/2020. Teknik pengumpulan data menggunakan soal tes berbentuk uraian materi bangun ruang (kubus dan balok). Teknik analisis data dalam penelitian ini adalah deskriptif kuantitatif. Dari hasil analisis data dan pembahasan maka dapat disimpulkan bahwa kemampuan pemecahan masalah matematis peserta didik dikategorikan rendah.  Analysis of Mathematical Problem-Solving Ability on Cubes and Blocks in Junior High SchoolAbstractThe ability to solve problems cannot be separated from teaching and learning activities in general because one's success in something that is faced cannot be separated from mathematics. This study aims to determine the mathematical Problem-solving abilities of grade IX students at SMP Negeri 15 Palembang. The sample in this study was taken randomly. namely students of class IX.1, totaling 31 students which were conducted at SMP Negeri 15 Palembang for the 2019/2020 academic year. The data collection technique used test questions in the form of a description of the material (cubes and cuboids). The data analysis technique in this research is descriptive quantitative. From the results of data analysis and discussion, it can be concluded that the students' mathematical Problem-solving ability is categorized as low.
Analisis Kemampuan Literasi Matematis Siswa melalui Soal PISA
Authors: Masfufah Risma , Afriansyah Ekasatya Aldila
Published: November 2021

AbstrakPada zaman sekarang, pembelajaran semakin menigkat. Begitu pula pada pelajaran matematika. Siswa lebih dituntut untuk bukan hanya sekadar mampu berhitung saja, tapi mampu mengaplikasikannya dalam memecahkan masalah dalam kehidupan sehari-hari. Penelitian ini bertujuan untuk menganalisis kemapuan literasi matematis siswa SMP kelas VIII di Kp. Panawuan Rt.02/Rw.10. Metode penelitian yang dilakukan adalah deskriftif kualitatif. Subjek penelitian terdiri dari 4 orang yang diambil secara acak. Berdasarkan hasill penelitian, meskipun soal yang diberikan adalah soal-soal standar atau rutin dan tergolong mudah karena mengambil level 1 dan 2. Seluruh subjek penelitiannya merasa kewalahan dan kesulitan dalam menafsirkan dan mengaplikasikan rumus yang sudah mereka ketahui dalam menyelesaikan masalah yang diberikan. Simpulan yang dapat diambil adalah kemampuan literasi matematis siswa dalam penelitian ini masih terbilang rendah karena siswa masih merasa kesulitan dalam menghadapi soal PISA dengan level 1 dan 2. AbstractIn this day and age, learning is increasing. Likewise in math lessons. Students are more required to not only be able to count, but also be able to apply it in solving problems in everyday life. This study aims to analyze the mathematical literacy skills of the VIII grade junior high school students at Kp. Panawuan Rt.02 / Rw. 10. The research method used is descriptive qualitative. The research subjects consisted of 4 people who were taken randomly. Based on the research results, although the questions given are standard or routine and are relatively easy because they take levels 1 and 2. All research subjects feel overwhelmed and have difficulty in interpreting and applying the formulas they already know in solving the problems given. The conclusion that can be drawn is that students' mathematical literacy skills in this study are still low because students still find it difficult to face PISA questions with levels 1 and 2.
Analisis Kelengkapan RPP Matematika pada Guru SMAN 5 Tapung
Authors: Abdullah Tomy , Maimunah Maimunah , Roza Yenita
Published: November 2021

AbstrakPenelitian ini dilatarbelakangi masih adanya guru yang menjadikan RPP hanya sebagai syarat administrasi tanpa memperhatikan tentang kelengkapan RPP yang sesuai dengan Permendikbud 103 tahun 2014. Penelitian ditujukan untuk mendeskripsikan kesesuaian kelengkapan 3 RPP dari 3 guru matematika yang menggunakan Kurikulum 2013 pada SMA 5 Tapung. Penelitian ini menggunakan metode deskriptif kualitatif, sasaran penelitian ini adalah 3 RPP dengan materi Nilai Mutlak. Hasil dari analisis data menggunakan metode deskriptif kualitatif memberikan hasil dengan rata-rata 77,2% termasuk dalam kategori sesuai dengan Kurikulum 2013. Berdasarkan rata-rata yang diperoleh maka dapat dikatakan bahwa guru matematika di SMA 5 Tapung telah sadar dan sangat memperhatikan tentang aturan Permendikbud 103 tahun 2014. Analysis of the Completeness of RPP Components for Mathematics Teachers of SMAN 5 TapungAbstractThe background of this research is that there are still teachers who make RPP only as an administrative requirement without paying attention to the completeness of the RPP following Permendikbud 103 of 2014. The research is aimed at describing the suitability of the completeness of 3 RPP from 3 mathematics teachers who use the 2013 Curriculum at SMA 5 Tapung. This study uses a qualitative descriptive method, the target of this research is 3 lesson plans with Absolute Value material. The results of data analysis using descriptive qualitative methods gave results with an average of 77.2% included in the category according to the 2013 Curriculum. Based on the average obtained, it can be said that the mathematics teacher at SMA 5 Tapung has been aware and very concerned about the rules of Permendikbud 103 of 2014.
Peningkatan Kemampuan Pemecahan Masalah Matematis dan Kemandirian Belajar Siswa Menggunakan Model Pembelajaran Means End Analysis
Authors: Asih Nur , Ramdhani Sendi
Published: November 2021

AbstrakTujuan penelitian adalah untuk mengetahui apakah peningkatan kemampuan pemecahan masalah matematis siswa yang menggunakan model pembelajaran Means End Analysis (MEA) lebih baik dari pada konvensional, untuk mengetahui sikap kemandirian belajar siswa terhadap pembelajaran matematika menggunakan model pembelajaran Means End Analysis (MEA), dan untuk mengetahui hambatan siswa dalam menyelesaikan soal-soal kemampuan pemecahan masalah matematis. Metode penelitiannya adalah eksperimen kuasi dan desain penelitiannya Nonequivalent control group design. Populasi dalam penelitian ini adalah seluruh siswa kelas XI SMA PASUNDAN CIKALONGKULON dengan sampel sebanyak dua kelas. Teknik pengambilan sampel menggunakan teknik purposive sampling. Kelas XI MIPA-3 sebagai kelas eksperimen dan kelas XI MIPA-1 sebagai kelas kontrol. Instrumen berupa tes kemampuan pemecahan masalah matematis, angket dan wawancara. Berdasarkan hasil analisis data, peningkatan kemampuan pemecahan masalah matematis siswa yang menggunakan model pembelajaran Means End Analysis (MEA) lebih baik dari konvensional. Hasil angket siswa kelas XI MIPA-3 memperoleh hasil hampir seluruhnya positif respon siswa terhadap model pembelajaran Means End Analysis (MEA).Kata Kunci: Kemandirian, MEA, Pemecahan Masalah Matematis. Increased Mathematical Problem Solving Ability and Student Learning Independence Using the Means-End Analysis Learning Model AbstractThe purpose of this research is to find out whether the improvement of students 'mathematical problem-solving abilities using the Means-End Analysis (MEA) learning model is better than conventional learning, to determine the attitudes of students' learning independence towards mathematics learning using the Means-End Analysis (MEA) learning model, and to find out the obstacles of students in solving problems mathematical problem solving abilities. The research method is a quasi-experiment and the research design is Nonequivalent control group design. The population in this study were all students of class XI SMA PASUNDAN CIKALONGKULON with a sample of two classes. The sampling technique uses a purposive sampling technique. Class XI MIPA-3 as an experimental class and class XI MIPA-1 as a control class. The instruments were in the form of tests of mathematical problem-solving abilities, questionnaires, and interviews. Based on the results of data analysis, the improvement of students' mathematical problem-solving abilities using the Means-End Analysis (MEA) learning model is better than conventional. The results of the XI MIPA-3 class questionnaire obtained almost entirely positive student responses to the Means-End Analysis (MEA) learning model.Keywords: Independence, MEA, Mathematical Problem Solving.
Think Pair Share sebagai Model Pembelajaran Kooperatif untuk Peningkatan Kemampuan Pemecahan Masalah Matematis
Authors: Latifah Syintia Siti , Luritawaty Irena Puji
Published: November 2021

AbstrakDiperlukan upaya untuk meningkatkan pencapaian kemampuan pemecahan masalah matematis yang masih rendah, misalnya menggunakan model pembelajaran tipe Think Pair Share. Tujuan penelitian yaitu mengetahui peningkatan dan seberapa jauh kemampuan pemecahan masalah matematis siswa dapat meningkat dengan model pembelajaran Think Pair Share. Metode penelitian yaitu kuasi eksperimen, dengan populasi siswa kelas VIII di satu SMP di Kabupaten Garut. Sampel yaitu kelas VIII-A sejumlah 33 siswa, dipilih berdasarkan teknik purposive sampling. Instrumen berupa soal tes uraian kemampuan pemecahan masalah diujikan sebelum dan sesudah pembelajaran. Hasil analisis data pada kelas Think Pair Share menunjukkan peningkatan kemampuan pemecahan masalah matematis berkategori sedang. Pembelajaran kooperatif tipe Think Pair Share terbukti cukup efektif meningkatkan kemampuan pemecahan masalah matematis siswa. Think Pair Share Type Cooperative Learning Model to improve Mathematical Problem Solving Ability AbstractEfforts are needed to improve the achievement of mathematical problem-solving abilities that are still low, for example using the Think Pair Share type of learning model. The purpose of this research is to find out how much improvement and how much the students' mathematical problem-solving ability increases through the Think Pair Share learning model. The research method is quasi-experimental, with a population of eighth-grade students in one junior high school in Garut Regency. The sample is class VIII-A with 33 students, selected based on purposive sampling technique. Instruments in the form of test questions describing problem-solving abilities were tested before and after learning. The results of data analysis in the Think Pair Share class showed an increase in the ability to solve mathematical problems in the medium category. Cooperative learning Think Pair Share type proved effective enough to improve students' mathematical problem-solving abilities.
Exploring of Student’s Algebraic Thinking Process Through Pattern Generalization using Similarity or Proximity Perception
Authors: Nurmawanti Iva , Sulandra I Made
Published: November 2021

Students' algebraic thinking skills must continue to be developed because they can support success in mathematics. Algebraic thinking relates to generalizing patterns learned at the junior secondary level. During the process of generalizing students use the perception of similarity or proximity. Therefore, the purpose of this study is to describe the algebraic thinking process of junior high school students in generalizing patterns. The approach used is qualitative with 3 research subjects who have different algebraic thought processes. The results showed that junior high school students carried out algebraic thought processes by perceiving images, representing, looking for functional relationships, making generalizations, and applying general formulas. The difference in perception is used early in the activity and in the search for functional relationships. The results of this study can be used in developing mathematics learning strategies so that students' algebraic thinking skills develop.
Kemampuan berpikir aljabar siswa harus terus dikembangkan karena dapat mendukung kesuksesan dalam matematika.  Berpikir aljabar generalisasi dengan generalisasi pola yang dipelajari pada tingkat SMP. Pada saat proses melakukan generalisasi siswa menggunakan persepsi similarity atau proximity. Oleh sebab itu, tujuan penelitian ini yaitu mendeskripsikan proses berpikir aljabar siswa SMP dalam melakukan generalisasi pola. Pendekatan yang digunakan yaitu kualitatif dengan 3 subjek penelitian yang memiliki proses berpikir aljabar yang berbeda. Hasil penelitian menunjukkan bahwa siswa SMP melakukan proses berpikir aljabar dengan mempersepsikan gambar, merepresentasikan, mencari hubungan fungsional, melakukan generalisasi, dan mengaplikasikan rumus umum. Perbedaannya persepsi digunakan di awal kegiatan dan pada kegiatan pencarian hubungan fungsional. Hasil penelitian ini dapat digunakan dalam mengembangkan strategi pembelajaran matematika agar kemampuan berpikir aljabar siswa berkembang.
Analisis Kesalahan Siswa SMK dalam Menyelesaikan Soal Materi Barisan dan Deret
Authors: Septiahani Asri , Melisari Melisari , Zanthy Luvy Sylviana
Published: November 2021

AbstrakPenelitian ini memiliki latar belakang yang membahas, bahwa materi Barisan dan Deret pada siswa sangat penting untuk menentukan tentang sebuah daftar bilangan yang mengurut dan memiliki suatu pola atau karakteristik tertentu dalam kehidupan nyata. Tujuan dari penelitian ini adalah mengetahui tingkat kesulitan siswa Sekolah Menengah Kejuruan untuk menyelesaikan soal materi Barisan dan Deret. Subyek yang digunakan adalah 12 orang siswa kelas XII di SMK Kartini Bhakti Mandiri Kabupaten Bandung Barat. Metode yang digunakan dalam penelitian ini adalah deskriptif kualitatif yang hasilnya diperoleh dari pemberian soal sesuai dengan indikator Barisan dan Deret. Analisis dilakukan dengan memberikan tes tertulis berbentuk soal uraian yang berjumlah 5 soal. Penelitian ini merupakan sebuah studi pendahuluan. Hasil analisis data dan pembahasan menjelaskan, bahwa kemampuan siswa pada materi Barisan dan Deret yang masih tergolong rendah.  Dari rekapitulasi perhitungan yang telah dilakukan, didapat bahwa persentase kesalahan yang paling banyak dilakukan siswa yakni sekitar 84,5% pada indikator menyatakan suatu situasi atau masalah sehari-hari tentang Barisan dan Deret ke dalam bentuk model matematika dan menyelesaikannya.  AbstractThis research has a background that discusses, that the material Sequence and Series in students are very important to determine a list of numbers that sequence and have a certain pattern or characteristic in real life. The purpose of this study was to determine the level of difficulty of Vocational High School students to solve the Sequence and Series material problems. The subjects used were 12 students of class XII at SMK Kartini Bhakti Mandiri in West Bandung Regency. The method used in this study is a qualitative descriptive which results are obtained from the provision of questions following the Sequence and Series indicators. The analysis was carried out by giving a written test in the form of a description of a total of 5 questions. This research is a preliminary study. The results of the data analysis and discussion explained, that the ability of students in the material Sequence and Series are still relatively low. From the recapitulation of calculations that have been done, it is found that the percentage of errors that most students make is around 84.5% on the indicator stating a daily situation or problem about Sequences and Series in the form of mathematical models and solving them.
Pengembangan Media Pembelajaran Berbasis Macromedia Flash Bermuatan Problem Posing terhadap Kemampuan Pemecahan Masalah Matematis
Authors: Hodiyanto Hodiyanto , Darma Yudi , Putra Syarif Restian Sarisma
Published: November 2021

AbstrakTujuan penelitian ini ingin menghasilkan media pembelajaran macromedia flash bermuatan problem posing terhadap kemampuan pemecahan masalah matematis yang mencapai kriteria valid, kepraktisan, dan keefektifan. Metode penelitian ini adalah penelitian pengembangan dengan model rancangan 4-D oleh Thiagarajan, yaitu Define, Design, Develop, dan Desseminate. Tetapi pada penelitian ini hanya pada tahap pengembangan saja. Subjek dalam penelitian ini adalah siswa kelas VIII SMP Negeri 5 Sukadana sebanyak 20 siswa, ahli dan guru. Instrumen yang digunakan dalam penelitian ini adalah lembar validasi, angket dan soal posttest. Berdasarkan hasil penelitian diperoleh hasil validasi macromedia flash bermuatan problem posing memiliki kriteria sangat valid. Tingkat kepraktisan terhadap macromedia flash bermuatan problem posing memiliki kriteria sangat praktis, tingkat keefektifan terhadap macromedia flash bermuatan problem posing tergolong kriteria sangat efektif. Dengan demikian dapat disimpulkan bahwa macromedia flash bermuatan problem posing yang dikembangkan dapat digunakan karena memenuhi kriteria kevalidan yang sangat valid, kepraktisan yang sangat praktis, dan keefektifan yang efektif. AbstractThe purpose of this study is to produce Macromedia flash learning media containing problem posing to mathematical problem-solving abilities that reach valid criteria, practicality, and effectiveness. This research method is a research development with a 4-D design model by Thiagarajan: Define, Design, Develop, and Disseminate. But this research is only at the development stage. The subjects in this study were 20th-grade students of SMP Negeri 5 Sukadana, experts, and teachers. The instruments used in this study were validation sheets, questionnaires, and posttest questions. Based on the research results obtained by the results of validation Macromedia flash loaded posing problem has very valid criteria. The level of practicality with problem-posing Macromedia flash has very practical criteria, the level of effectiveness with problem-posing Macromedia flash is classified as very effective criteria. Thus it can be concluded that Macromedia flash with posing problem developed can be used.
Penerapan Model Murder Terhadap Peningkatan Kemampuan Analisis Dan Evaluasi Matematis Siswa SMP
Authors: Setiyani Setiyani , Sagita Laela , Herdiawati Indriani Eka
Published: November 2021

AbstrakDitinjau dari aspek kognitif, kemampuan analisis dan kemampuan evaluasi matematis merupakan kemampuan berpikir tingkat tinggi yang perlu mendapat perhatian. Peningkatan kedua kemampuan tersebut perlu didukung oleh model pembelajaran yang tepat, salah satunya model MURDER. Tujuan penelitian adalah mengetahui aktivitas siswa selama pembelajaran matematika menggunakan model MURDER, peningkatan kemampuan analisis, dan peningkatan kemampuan evaluasi matematis. Metode yang digunakan yaitu eksperimen, dengan desain One Group Pretest and Postest. Penelitian dilakukan di SMP Negeri 2 Mandirancan dengan sampel random sampling sebanyak 36 siswa. Instrumen penelitian diantaranya tes kemampuan analisis matematis, tes kemampuan evaluasi matematis, dan lembar observasi. Hasil penelitian menunjukan bahwa aktivitas siswa dengan model MURDER mengalami peningkatan setiap pertemuan. Rata-rata persentase aktivitas siswa pada pertemuan pertama sebesar 73%, pertemuan kedua sebesar 76%, pertemuan ketiga sebesar 80%. Selanjutnya, terdapat peningkatan kemampuan analisis matematis dengan rata-rata 0.75, interpretasi tinggi dan terdapat peningkatan kemampuan evaluasi matematis dengan rata-rata mencapai 0.69, interpretasi sedang. Berdasarkan hasil yang diperoleh, model MURDER efektif diterapkan untuk meningkatkan kemampuan analisis dan evaluasi matematis siswa SMP.                                    Application of MURDER Learning to Improve the Analytical and Mathematical Evaluation Ability at Junior High School AbstractIn cognitive aspects, analytical and mathematical evaluation abilities are higher-order thinking skills that need attention. The improvement of these needs supporting by an appropriate learning model, one of which is the MURDER model.  This study aims to determine: student activities during mathematics learning using the MURDER model, increased analytical skills, and increased mathematical evaluation abilities. The method used is an experiment, with One Group Pretest and Postest design. The study was conducted at SMPN 2 Mandirancan taking 36 students by Random Sampling. The instruments used were mathematical analysis ability tests, mathematical evaluation ability tests, and observation sheets. The results showed that student activities with the MURDER model at each meeting increased. The average percentage of student activity at the first meeting was 73%, the second meeting was 76%, the third meeting was 80%. There was an increase in mathematical analysis skills with an average of 0.75 high interpretation and there was an increase in mathematical evaluation skills with averaging 0.69, moderate interpretation. Based on the results obtained, the MURDER model is effectively applied to improve the analysis and evaluation skills of junior high school students.
Proses Berpikir Siswa dalam Memperbaiki Kesalahan Generalisasi Pola Linier
Authors: Setiawan Yayan Eryk
Published: November 2021

AbstrakMasih banyak kesalahan yang dilakukan oleh siswa dalam menggeneralisasi pola linier yang disebabkan fokus pada data numerik. Siswa-siswa yang mengalami kesalahan ini penting diberikan kesempatan kembali untuk memperbaiki kesalahan dalam menggeneralisasi pola linier. Untuk itu, tujuan penelitian ini adalah menganalisis proses berpikir siswa dalam memperbaiki kesalahan generalisasi pola linier. Sesuai dengan tujuan penelitian tersebut, maka penelitian ini merupakan penelitian kualitatif deskriptif dengan pendekatan studi kasus terhadap 2 siswa kelas VIII sekolah menengah pertama yang berhasil memperbaiki kesalahan generalisasi pola linier. Hasil penelitian menunjukkan bahwa terdapat dua jenis proses berpikir dalam memperbaiki kesalahan generalisasi pola linier, yaitu memperbaiki dengan menguji dan mencoba, serta memperbaiki dengan mengganti strategi generalisasi. Proses memperbaiki dengan menguji dan mencoba terdiri dari tiga tahap, yaitu: tahap mencari beda, tahap menguji, dan tahap mencoba. Proses memperbaiki dengan mengganti strategi generalisasi terdiri dari tiga tahap, yaitu: tahap mencari beda, tahap mengganti strategi generalisasi, dan tahap menemukan rumus suku ke-n. Cara yang paling efektif untuk memperbaiki kesalahan generalisasi pola linier adalah dengan cara mengganti strategi. Students Thinking Processes in Correcting Errors of Linear Pattern GeneralizationAbstractThere are still many mistakes made by students in generalizing linear patterns due to the focus on numerical data. It is important for students who experience this error to be given another opportunity to correct errors in generalizing linear patterns. For this reason, the purpose of this study is to analyze students' thought processes in correcting errors in the generalization of linear patterns. By the objectives of this study, this research is a descriptive qualitative study with a case study approach to 2 students of class VIII junior high school who succeeded in correcting errors in the generalization of linear patterns. The results showed that there are two types of thought processes in correcting errors in the generalization of linear patterns, namely repairing by testing and trying, and improving by replacing generalization strategies. The process of improving by testing and trying consists of three stages, namely: the stage of finding a difference, the testing stage, and the trying stage. The process of improving by replacing the generalization strategy consists of three stages, namely: the stage of finding a difference, the stage of changing the generalization strategy, and the stage of finding the formula for the nth term. The most effective way to correct linear pattern generalization errors is by changing strategies.
Pengaruh Penerapan Media UnoMath untuk Meningkatkan Kemampuan Komunikasi Matematis dan Kemandirian Belajar Siswa
Authors: Robiana Asep , Handoko Hendri
Published: November 2021

AbstrakKomunikasi matematis dan kemandirian belajar merupakan hal yang sangat penting dimiliki oleh siswa dan merupakan bagian esensial dari matematika. Masih rendahnya kemampuan matematis dan kemandirian belajar siswa di lapangan, guru harus mengupayakan pembelajaran dengan menerapkan media pembelajaran yang dapat memberikan peluang dan mendorong siswa untuk melatih kemampuan komunikasi matematis dan kemandirian belajar siswa, salah satu media pembelajaran tersebut yaitu media UnoMath. Tujuan Penelitian ini yaitu untuk mengetahui pengaruh penerapan media UnoMath terhadap peningkatan kemampuan komunikasi matematis dan kemandirian belajar siswa. Metode yang digunakan pada penelitian ini adalah penelitian eksperimen dengan pendekatan kuantitatif dengan desain pretest-posttest control group, penelitian ini dilakukan di SMP Negeri 3 Rajagaluh, kelas VIII A sebanyak 21 orang dan VIII C sebanyak 31 orang sebagai sampel, dengan instrumen tes dan angket. Teknik analisis data yang digunakan yaitu uji-t dengan berbantuan SPSS. Hasil penelitian menunjukkan adanya peningkatan kemampuan komunikasi matematis dan kemandirian belajar siswa. Effect of Application of UnoMath Media to Improve Mathematical Communication Skills and Self-Regulated Learning AbstractMathematical communication and self-regulated learning are very important things for students and are an essential part of mathematics. Still low mathematical abilities and self-regulated learning student in the field, teachers must strive for learning by applying learning media that can provide opportunities and encourage students to practice mathematical communication skills and self-regulated learning student, one of these learning media is UnoMath media. The purpose of this study was to determine the effect of the application of UnoMath media on improving students' mathematical communication skills and self-regulated learning. The method used in this research is experimental research with a quantitative approach with pretest-posttest control group design, this research was conducted at SMP Negeri 3 Rajagaluh, class VIII A as many as 21 people and VIII C as many as 31 people as a sample, with test instruments and questionnaires. The data analysis technique used is the t-test assisted by SPSS. The results showed an increase in mathematical communication skills and a self-regulated learning student.
Self Efficacy Calon Guru Matematika
Authors: Sumartini Tina Sri
Published: November 2021

AbstrakSelf-efficacy calon guru matematika masih kurang. Oleh karena itu, perlu dilakukan analisis mengenai self-efficacy calon guru matematika sehingga dapat diketahui aspek self-efficacy yang perlu ditingkatkan. Tujuan penelitian ini yaitu untuk menganalisis self-efficacy calon guru matematika dalam mengajar matematika. Metode penelitian yang digunakan yaitu kualitatif dengan menggunakan teknik purposive sampling. Sampel yang diambil sebanyak tiga orang calon guru matematika jurusan pendidikan matematika di Institut Pendidikan Indonesia. Analisis data dilakukan secara kualitatif. Hasil penelitian menunjukkan bahwa calon guru matematika memiliki keyakinan dalam penguasaan pengetahuan matematika, namun merasa kurang yakin bahwa dirinya mampu untuk menyampaikan materi matematika kepada siswa. Kurangnya keyakinan ini berakibat pada kemampuan pedagogis calon guru matematika.  Self-Efficacy of Mathematics Prospective TeachersAbstractThe self-efficacy of prospective mathematics teachers is still lacking. Therefore, it is necessary to analyze the self-efficacy of prospective mathematics teachers so that it can be seen which aspects of self-efficacy need to be improved. The purpose of this study was to analyze the self-efficacy of prospective mathematics teachers in teaching mathematics. The research method used is qualitative by using a purposive sampling technique. The sample taken was three prospective mathematics teachers majoring in mathematics education at the Indonesian Institute of Education. The data analysis was done qualitatively. The results showed that the prospective mathematics teacher had confidence in the mastery of mathematical knowledge, but felt less confident that he was able to convey mathematics material to students. This lack of confidence results in the pedagogical abilities of prospective mathematics teachers.
Winchester in the Early Middle Ages: An Edition and Discussion of The Winton Domesday
Authors: Barlow Frank , Biddle Martin , von Feilitzen Olaf , Keene D.J.
Published: November 2021

London and Winchester were not described in the Domesday Book, but the royal properties in Winchester were surveyed for Henry I about 1110 and the whole city was surveyed for Bishop Henry of Blois in 1148. These two surveys survive in a single manuscript, known as the Winton Domesday, and constitute the earliest and by far the most detailed description of an English or European town of the early Middle Ages. In the period covered Winchester probably achieved the peak of its medieval prosperity. From the reign of Alfred to that of Henry II it was a town of the first rank, initially centre of Wessex, then the principal royal city of the Old English state, and finally `capital’ in some sense, but not the largest city, of the Norman Kingdom. This volume provides a full edition, translation, and analyses of the surveys and of the city they depict, drawing on the evidence derived from archaeological excavation and historical research in the city since 1961, on personal- and place-name evidence, and on the recent advances in Anglo-Saxon numismatics.
A Novel Intervention for Management of Behavioral and Psychological Symptoms of Dementia in Nursing Home Communal Areas: Results of a Small-Scale Pilot Trial
Authors: Gutman Gloria , Vashisht Avantika , Kaur Taranjot , Karbakhsh Mojgan , Churchill Ryan , Moztarzadeh Amir
Published: November 2021

Background:

Behavioral and psychological symptoms of dementia (BPSD) exhibited by persons with dementia (PwD) in nursing home communal areas are generally managed by segregation and/or pharmacological interventions.

Objective:

This study trialed MindfulGarden (MG), a novel digital calming device, in a Canadian nursing home.

Methods:

Participants were 15 PwD (mean age = 87.67; 5m,10f; mean MMSE = 11.64±7.85). Each was observed by a research assistant (RA) for an average of 8–10 hours on two separate days. The RA followed them during time spent in communal areas of the nursing home including their unit’s dining space, lounges, and corridors and spaces shared with other units (e.g., gym and gift shop) and documented any BPSD exhibited. Day-1 provided baseline data; on Day-2, residents were exposed to MG if nursing staff considered their BPSD were sufficiently intense or sustained to warrant intervention. Staff rated the impact as positive, neutral, or negative.

Results:

On Day-1, 9 participants exhibited both aggressive and non-aggressive behaviors, 4 non-aggressive behaviors only, and 2 no BPSD. On Day-2, 7 exhibiting aggressive behaviors were exposed to MG. Staff reported MG as having distracting/calming effects and gave positive impact ratings to 6/13 exposures; there were no negative ratings. The most common aggressive BPSD on days of observation were pushing/shoving and screaming.

Conclusion:

MG may have value as a “psychiatric crash cart” in de-escalating agitation and aggression in care home settings.
Efficient Algorithms for Maximum Induced Matching Problem in Permutation and Trapezoid Graphs
Authors: Nguyen Viet Dung , Pham Ba Thai , Do Phan Thuan
Published: November 2021

We first design an 𝒪( n2) solution for finding a maximum induced matching in permutation graphs given their permutation models, based on a dynamic programming algorithm with the aid of the sweep line technique. With the support of the disjoint-set data structure, we improve the complexity to 𝒪( m+ n). Consequently, we extend this result to give an 𝒪( m+ n) algorithm for the same problem in trapezoid graphs. By combining our algorithms with the current best graph identification algorithms, we can solve the MIM problem in permutation and trapezoid graphs in linear and 𝒪( n2) time, respectively. Our results are far better than the best known 𝒪( mn) algorithm for the maximum induced matching problem in both graph classes, which was proposed by Habib et al.
Testing Boolean Functions Properties
Authors: Zhengwei Xie , Daowen Qiu , Guangya Cai , Gruska Jozef , Mateus Paulo
Published: November 2021

The goal in the area of functions property testing is to determine whether a given black-box Boolean function has a particular given property or is ɛ-far from having that property. We investigate here several types of properties testing for Boolean functions (identity, correlations and balancedness) using the Deutsch-Jozsa algorithm (for the Deutsch-Jozsa (D-J) problem) and also the amplitude amplification technique.

At first, we study here a particular testing problem: namely whether a given Boolean function f, of n variables, is identical with a given function g or is ɛ-far from g, where ɛ is the parameter. We present a one-sided error quantum algorithm to deal with this problem that has the query complexity [Formula: see text]. Moreover, we show that our quantum algorithm is optimal. Afterwards we show that the classical randomized query complexity of this problem is [Formula: see text]. Secondly, we consider the D-J problem from the perspective of functional correlations and let C( f, g) denote the correlation of f and g. We propose an exact quantum algorithm for making distinction between | C( f, g)| = ɛ and | C( f, g)| = 1 using six queries, while the classical deterministic query complexity for this problem is Θ(2 n) queries. Finally, we propose a one-sided error quantum query algorithm for testing whether one Boolean function is balanced versus ɛ-far balanced using [Formula: see text] queries. We also prove here that our quantum algorithm for balancedness testing is optimal. At the same time, for this balancedness testing problem we present a classical randomized algorithm with query complexity of O(1/ ɛ2). Also this randomized algorithm is optimal. Besides, we link the problems considered here together and generalize them to the general case.
The Inverse of Ackermann Function is Computable in Linear Time
Authors: Sureson Claude
Published: November 2021

We propose a detailed proof of the fact that the inverse of Ackermann function is computable in linear time.