bluuebunny/crossref_metadata_2025 huggingface dataset:
Pengembangan Soal Terbuka (Open-Ended Problem) pada Mata Pelajaran Matematika SMP Kelas VIII
Authors: Nurlita Maya
Published: March 2024

Penelitian ini bertujuan untuk menghasilkan soal terbuka (open-ended problem) pada mata pelajaran matematika SMP kelas VIII yang valid dan memiliki karakteristik soal yang baik. Penelitian ini merupakan penelitian pengembangan dengan model pengembangan yang ditetapkan oleh McIntire Miller. Langkah-langkah pengembangan dalam penelitian ini meliputi studi pendahuluan, perancangan produk dan pengembangan produk. Penelitian ini menghasilkan soal terbuka (open-ended problem) yang meliputi kisi-kisi soal, 28 butir soal uraian (essay), dan pedoman penskoran. Hasil validasi menunjukkan bahwa produk yang dikembangkan memiliki kategori valid. Soal terbuka yang dikembangkan juga memiliki karakteristik yang baik ditinjau dari tingkat kesulitan soal dan daya pembeda soal, keduanya berturut-turut berada pada kategori sedang dan soal diterima dengan baik. Hasil estimasi reliabilitas sebesar 0,72 dengan standar kesalahan pengukuran atau SEM sebesar 2,376. Berdasarkan hasil uji lapangan, kemampuan berpikir kreatif siswa hanya berada pada kemampuan kelancaran dan keterincian, sedangkan prestasi belajar matematika siswa mencapai kategori positif. Secara keseluruhan hasil penelitian menunjukkan bahwa soal terbuka (open-ended problem) yang dikembangkan adalah layak untuk digunakan.Kata Kunci: Pengembangan soal terbuka, open-ended problem Developing An Open Question Test (Open-Ended Problem) in Mathematics for Year Eight Students Of Junior High School AbstractThis aim of study were to produce a valid and good open question test (open-ended problem) in learning mathematics for 8th grade students of JHS. This was a developmental reserach using development model set by McIntire Miller. The steps in this study included preliminary study, product design, and product development. The result of this study was an open question test (open-ended problem), including test blueprint, 28 items of essay tests, and scoring guide. The validation result showed that the developed tests have a valid category. The developed open questions also have a good characteristic, viewed from the test difficulty and distinguishing power which are in medium category and available received. The generated reliability is 0,72 with the measurement error standard or SEM is 2,376. Based on the field trial result, students’ creative thinking ability just stated on fluently and detail, and student’ mathematics achievement was in positive category. Overall, the study result showed that the developed open questions (open-ended problem) are feasible to use.Keywords: Open question development, open-ended problem
Pengembangan perangkat pembelajaran matematika dengan pendekatan PBL berorientasi pada kemampuan berpikir kreatif dan self-efficacy
Authors: Masitoh Lisda Fitriana , Hartono Hatono
Published: March 2024

Penelitian ini bertujuan untuk menghasilkan perangkat pembelajaran matematika dengan pendekatan Problem Based Learning (PBL) berorientasi pada kemampuan berpikir kreatif dan self-efficacy matematika siswa SMP yang layak. Penelitian ini termasuk dalam jenis penelitian dan pengembangan. Model pengembangan diadaptasi dari model pengembangan Borg Gall. Subjek penelitian adalah 32 siswa kelas VII-3 SMP N 5 Yogyakarta. Instrumen penelitian yang digunakan adalah lembar validasi, angket penilaian guru, angket penilaian siswa, lembar observasi keterlaksanaan pembelajaran, tes prestasi belajar materi transformasi, tes prestasi belajar materi statistika dan peluang, tes berpikir kreatif materi transformasi, tes berpikir kreatif materi statistika dan peluang serta angket self-efficacy matematika. Penelitian ini menghasilkan perangkat pembelajaran matematika yang terdiri dari 7 RPP dan 25 LKS untuk siswa SMP kelas VII semester genap. Hasil penelitian menunjukkan bahwa perangkat pembelajaran layak digunakan karena memenuhi kriteria valid, praktis dan efektif ditinjau dari kemampuan berpikir kreatif dan self-efficacy matematika siswa. Developing Mathematics Instructional Materials Using Pbl Approach Oriented to Creative Thinking Ability and Self-Efficacy AbstractThis study aimed to produce the mathematics instructional materials using Problem Based Learning (PBL) approach oriented to creative thinking ability and mathematics self-efficacy of Junior High School students which is proper to use. This study is categorized as research and development. Development model of instructional materials in this study was adapted from Borg Gall development model. The subjects of this research were 32 students of class VII-3 SMP N 5 Yogyakarta. The research instruments were  validation sheets, questionnaire assessment for teachers, questionnaire assessment for students, learning implemented observation sheets, achievement test of material transformation, achievement test of material statistics and probabilty, creative thinking test of material transformation, creative thinking test of material statistics and probabilty and mathematics self-efficacy questionnaire. This research resulted in mathematics instructional materials that consist of 7 lesson plans and 25 student worksheets for Junior High School students of class VII even semester. The result shows that the instructional materials proper to use because the instructional materials are valid, practical and effective in terms of student’s creative thinking ability and mathematics self-efficacy.
ANALISIS KONJOIN UNTUK MENILAI PEMBUKAAN PROGRAM STUDI STATISTIKA DI UNIVERSITAS SYIAH KUALA
Authors: Rusyana Asep , Salwa Nanny , Muzamil Muzamil
Published: March 2024

Analisis konjoin biasa digunakan untuk mengukur tingkat kesukaan responden terhadap suatu produk. Pada penelitian ini, analisis konjoin diterapkan untuk mengidentifikasi penilaian dosen terhadap rencana pembukaan Program Studi Statistika di FMIPA Unsyiah. Atribut-atribut yang dilibatkan adalah dosen, peminat, pengguna lulusan, ruang kuliah, dan laboratorium. Responden terdiri atas 40 orang dosen FMIPA Unsyiah. Pengambilan contoh menggunakan penarikan contoh acak berlapis. Jurusan Matematika, fisika, kimia, dan biologi adalah masing-masing lapisan. Hasil penelitian menunjukan bahwa Ruangan adalah atribut yang paling penting untuk diperhatikan dan dosen FMIPA berpendapat bahwa ruangan kuliah kurang, pengguna lulusan banyak, dosen cukup, ruang laboratorium buruk, dan peminat kurang; sehingga kekurangannya harus diantisipasi. Kata kunci : Analisis konjoin, program studi Statistika
INTEGRAL HENSTOCK-STIELTJES FUNGSI BERNILAI VEKTOR
Authors: Hanung Umi Mahnuna , Indrati Ch. Rini
Published: March 2024

This paper discusses about the generalization of the Henstock-Stieltjes integral for vector-valued functions which are defined on a closed interval [a,b]R. The generalization has been done up to the existance of this integral.Key words: Henstock-Stieltjes integral, vector-valued function and bounded function.
PEMODELAN REGRESI ZERO INFLATED POISSON (APLIKASI PADA DATA PEKERJA SEKS KOMERSIAL DI KLINIK REPRODUKSI PUTAT JAYA SURABAYA)
Authors: Lestari Alia , Purhadi Purhadi , Ratna Madu
Published: March 2024

Dalam menganalisis hubungan antara beberapa variabel, terdapat sejumlah fenomena dimana variabel responsnya berbentuk biner ataupun berbentuk diskrit. Fenomena dimana variabel responsnya berbentuk diskrit tapi tidak biner, biasanya dianalisis dengan Regresi Poisson. Namun demikian dalam kasus tertentu sering dihadapi suatu peristiwa yang sangat jarang terjadi atau responsnya mempunyai data nol yang sangat banyak, sehingga analisis dengan pendekatan distribusi Poisson seringkali tidak lagi memberikan kesimpulan yang tepat. Pada penelitian ini akan dikaji suatu metode untuk mengatasi banyaknya respons bernilai nol yang telah dikembangkan oleh Lambert (1992) yaitu Regresi Zero-Inflated Poisson (ZIP). Estimasi parameter model ini menggunakan Algoritma EM dan pengujian hipotesisnya menggunakan Likelihood Ratio Test. Aplikasi pada data Pekerja Seks Komersial di Klinik Reproduksi Putat Jaya Surabaya menunjukkan bahwa variabel yang mempengaruhi zero state atau peluang yi bernilai nol sama dengan variabel yang mempengaruhi poisson state atau peluang yi berdistribusi Poisson, yaitu lamanya seorang PSK menjalani profesinya dan proporsi pemakaian kondom. Statistik Vuong yang dihasilkan menunjukkan bahwa Pemodelan Regresi ZIP menghasilkan model yang lebih baik daripada Regresi Poisson.Kata kunci : Algoritma EM, Pekerja Seks Komersial (PSK), Penyakit Menular Seksual (PMS), Regresi Poisson, Zero Inflated Poisson (ZIP).
PEMBENTUKAN SIGMA DELTA DAN IDEAL PRIMDARI GELANGGANG POLINOM MIRING
Authors: Kamal Amir
Published: March 2024

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CONSTRUCTION A CORING FROM TENSOR PRODUCT OF BIALGEBRA
Authors: Prima Puspita Nikken , Khabibah Siti
Published: March 2024

In this Paper introduced a coring from tensor product of bialgebra. An algebra with compatible coalgebrastructure are known as bialgebra. For any bialgebra B we can obtained tensor product between B anditself. Defined a right and left B -action on the tensor product of bialgebra B such that we have tensorproduct of B and itself is a bimodule over B. In this note we expect that the tensor product B anditself becomes a B -coring with comultiplication and counit.Keywords : action, algebra, coalgebra, coring.
APLIKASI MODEL GENERALIZED SPACE TIME AUTOREGRESSIVE PADA DATA PENCEMARAN UDARA DI KOTA SURABAYA
Authors: Wutsqa Dhoriva Urwatul , Suhartono Suhartono , Sutijo Brodjol
Published: March 2024

Penelitian ini secara  bertujuan mengaplikasan model Generalized Space Time  Autoregressive (GSTAR) untuk mendapatkan model peramalan data pencemaran udara di Kota Surabaya. Data yang digunakan dalam penelitian ini adalah zat polutan PM 10 ang berasal dari tiga stasiun pemantau di kota Surabaya mulai Januari hingga Desember 2009. Tahap-tahap pembentukan  model peramalan data pencemaran udara meliputi identifikasi order autoregresif dengan criteria AIC (Akaike Information Criterion), estimasi parameter yang terdiri atas estimasi bobot antar lokasi dengan normalisasi korelasi silang dan estimasi parameter autoregresif dengan metode kuadrat terkecil, uji signifikansi parameter melalui statistik uji Wald, serta uji kesesuaian model. Model yang dihasilkan merupakan model GSTAR dengan order autoregresif 3 dan order spasial 1 dengan order pembedaan 1. Model yang diperoleh menunjukkan adanya kecenderungan hubungan antar waktu dan  hubungan spasial antara stasiun 1 dan 3.Kata kunci : Data PM 10, polusi udara, Surabaya, model GSTAR
ESTIMASI PARAMETER MODEL HYBRIDIZING EXPONENTIAL SMOOTHING DAN NEURAL NETWORK PADA HASIL PENGUKURAN MEAN SEA LEVEL SATELIT ALTIMETRI JASON 2
Authors: Mara Novi
Published: March 2024

Nilai parameter dari suatu model peramalan dapat diestimasi dengan  meminumkan ukuran evaluasi keakuratan peramalan seperti MSE, MAE, MAPE dan AIC. Pada penelitian ini telah dilakukan estimasi parameter hybridizing neural network dengan exponential smoothing dengan meminimumkan MSE, MAE, MPE dan MAPE. Estimasi parameter dibatasi untuk nilai mulai dari 0.01 sampai  dengan 0.99. Estimator merupakan nilai yang memberikan model dengan ukuran keakuratan peramalan MAE dan MSE minimum. Dari algoritma program R yang telah dibuat, diperoleh estimator parameter  yang meminimalkan MSE  adalah 0.13. Estimtor parameter yang meminimumkan MAE adalah 0.01. Estimator parameter yang meminimumkan nilai MPE dan MAPE bernilai sama yakni 0.27. Ketiga estimator tersebut selanjutnya dimasukkan ke dalam model hybridizing neural network dengan exponential smoothing. Dari analisis perbandingan nilai MAE dan MSE dari masing-masing model, dapat disimpulkan bahwa untuk data hasil pegukuran mean sea level satelit altimetri Jason 2 estimasi parameter bobot dengan meminimumkan nilai MAE memberikan model hybridizing neural network dan exponential smoothing dengan nilai MAE dan MSE terkecil yakni 0.3088635 dan 0.2767077.Kata Kunci : Akurasi, Hybridizing, Exponential Smoothing, Neural Network
MULTI TRAVELING SALESMAN PROBLEM (MTSP) DENGAN ALGORITMA GENETIKA UNTUK MENENTUKAN RUTE LOPER KORAN DI AGEN SURAT KABAR
Authors: Saptaningtyas Fitriana Yuli
Published: March 2024

Permasalahan pendistribusian oleh beberapa loper koran di suatu agen surat kabar pada pelanggan sering mengalami keterlambatan. Bagaimana menentukan rute optimum bagi beberapa loper koran di sebuah agen surat kabar akan dimodelkan secara matematis dan akan diselesaikan menggunakan algoritma genetika. Permasalahan ini masuk dalam kategori Multi Travelling Salesman Problem (MTSP). Algoritma genetika yang mengadopsi proses evolusi makhluk hidup, pada penerapannya mengikuti langkah pembentukan populasi, menentukan nilai fitness, melakukan proses seleksi, melakukan pindah silang dan mutasi, dan  membentuk individu baru. Algoritma genetika dapat digunakan untuk menentukan rute optimum perjalanan beberapa loper koran di suatu agen surat kabar. Penentuan rute perjalanan beberapa loper koran di suatu agen surat kabar dengan langkah mendefinisikan populasi,menentukan nilai fitness, melakukan proses seleksi dengan metode seleksi rangking, pindah silang dengan order cross over, melakukan mutasi dengan swapping mutation, dan memperoleh individu baru yang menuju ke penyelesaian optimum. Dari hasil simulasi di suatu agen surat kabar dengan delapan loper Koran dan 160 pelanggan diperoleh jarak terpendek  sejauh 144.16 km pada iterasi ke 98. Semakin banyak iterasi yang digunakan maka akan semakin memberi solusi yang lebih optimum.Kata Kunci: Algoritma Genetika, Loper Koran, Agen Surat Kabar, MTSP
Pengembangan Perangkat Pembelajaran Geometri SMP dengan Pendekatan Open-Ended Berorientasi Kemampuan Berpikir Kritis
Authors: Ariani Astuti , Widjajanti Djamilah Bondan
Published: March 2024

Penelitian ini bertujuan untuk menghasilkan perangkat pembelajaran geometri bangun ruang sisi datar kelas VIII SMP. Perangkat pembelajaran tersebut terdiri atas: Rencana Pelaksanaan Pembelajar-an (RPP), Lembar Kegiatan Siswa (LKS) dan tes hasil belajar. RPP dan LKS menggunakan pendekatan open-ended dengan berorientasi kemampuan berpikir kritis. Penelitian ini merupakan penelitian pengembangan (R D) yang dikembangkan oleh Borg dan Gall dengan modifikasi. Hasil penelitian disimpulkan bahwa perangkat pembelajaran yang dikembangkan dinyatakan: (1) valid berdasarkan penilaian ahli/praktisi, (2) praktis digunakan berdasarkan: (a) observasi keterlaksanaan pembelajaran, (b) penilaian guru, dan (c) angket respons siswa, dan (3) efektif berdasarkan hasil tes kemampuan berpikir kritis siswa.Kata Kunci: pengembangan, perangkat pembelajaran geometri, pendekatan open-ended, kemampuan berpikir kritis. Developing the Learning Kits for the Topics of Geometry Using Open-Ended Approach with Critical Thinking Ability Orientation at Junior High School AbstractThis study aims at developing the learning kits for the topics Polyhedral of geometry at grade 8th in Junior High School. The learning kits consist of the Lesson Plans, the Student Worksheets, and the learning achievement test. The Lesson Plans and Student Worksheets use open-ended approach with critical thinking ability orientation. This is a research and development (RD) study by modifying Borg and Gall’s procedures. The result of study can be concluded that: (1) the learning kits are valid based on experts evaluation, (2) they are practical based on the result of: (a) the learning observation, (b) the teachers evaluation, and (c) the students’ responses questionnaire, and (3) they are effective based on the result of students’ critical thinking ability test.Keywords: develop, learning kits of geometry, open-ended approach, critical thinking ability.
Pengembangan Perangkat Pembelajaran Matematika Materi Himpunan Menggunakan Pendekatan Kontekstual untuk Siswa MTs Al-Ishlahuddiny Lombok
Authors: Mulhamah Mulhamah
Published: March 2024

Tujuan penelitian ini adalah untuk mendeskripsikan langkah-langkah pengembangan dan menghasilkan perangkat pembelajaran matematika materi himpunan menggunakan pendekatan kontekstual untuk siswa MTs Al-Ishlahuddiny Lombok, yang valid, praktis, dan efektif. Penelitian ini merupakan penelitian pengembangan, yang mengembangkan perangkat pembelajaran meliputi silabus, rencana pelaksanaan pembelajaran, lembar kegiatan siswa, dan tes hasil belajar. Model pengembangan dalam penelitian ini adalah model 4-D dari Thiagarajan, Semmel, dan Semmel yang telah dimodifikasi sehingga hanya memuat tahap pendefinisian, perancangan, dan pengembangan. Penelitian ini menghasilkan perangkat pembelajaran matematika yang menggunakan pendekatan kontekstual yang meliputi silabus, Rencana Pelaksanaan Pembelajaran (RPP), dan Lembar Kegiatan Siswa (LKS) yang berkualitas dan layak. Hasil penelitian menunjukkan bahwa masing-masing silabus, RPP, dan LKS sangat valid, sangat praktis, dan efektif.Kata kunci: pengembangan, perangkat pembelajaran matematika, pendekatan kontekstual. Developing Mathematics Teaching Kit on the Set Material Using the Contextual Approach for Students of MTs Al-Ishlahuddiny Lombok AbstractThe purpose of this research is to describe the steps and result of developing a valid, practical, and effective, mathematics teaching kit on set material using the contextual approach for students of MTs Al-Ishlahuddiny Lombok. This research is a developmental research study, which develops a teaching kit including the syllabus, lesson plan, worksheets, and achievement test. The developmental model in this research is the 4-D model of Thiagarajan, Semmel, and Semmel which has been modified so that it contains only the definition phase, design, and development. The research produced a quality and feasible mathematics teaching kit that uses the contextual approach that includes the syllabus, lesson plans, and worksheets. The result of the research shows that each of the syllabus, lesson plan, and worksheets are very valid, very practical, and effective.Keywords: development, mathematics teaching kit, contextual approach.
Komparasi Keefektifan Pendekatan Open-Ended dan GI Ditinjau dari Komunikasi, Pemecahan Masalah Matematis dan Motivasi Belajar
Authors: Subekti Sri
Published: March 2024

Penelitian ini bertujuan untuk mendeskripsikan keefektifan pendekatan open ended dan group investigation serta perbedaan keefektifan antara kedua pendekatan tersebut, ditinjau dari  komunikasi dan pemecahan masalah matematis, serta motivasi belajar matematika siswa. Jenis penelitian ini adalah quasi experiment dengan desain pretest-posttest with nonequivalent group design. Populasinya adalah seluruh siswa kelas VIII SMP Negeri 1 Galur, Kulon Progo, DIY tahun pelajaran 2012/2013. Dua kelas diambil sebagai sampel, kemudian secara acak ditentukan kelas dengan perlakuan pendekatan open ended dan group investigation. Data dikumpulkan dengan tes dan non tes, dianalisa dengan one sample t-test untuk menentukan keefektifan, Hotteling t’s Trace dan uji t univariat dengan kriteria Bonferroni untuk menguji perbedaan keefektifan antara kedua pendekatan tersebut. Hasil penelitian menunjukkan bahwa pendekatan open ended dan group investigation efektif, pendekatan open ended lebih efektif dibanding pendekatan group investigation, serta pendekatan group investigation lebih efektif dibanding pendekatan open ended ditinjau dari komunikasi matematis dan motivasi belajar matematika siswa.Kata Kunci: open-ended, group investigation, komunikasi matematis, pemecahan masalah, motivasi belajar. The Effectiveness Comparison of the Open-Ended and GI Approaches Viewed from Mathematical Communicative and Problem Solving and Learning Motivation AbstractThis study aimed to describe the effectiveness of the open-ended and the group investigation approaches and the effectiveness differences between the two approaches viewed from the mathematical communicative problem-solving  and the mathematics learning motivation  on  the basic competency of polyhedral. This research was a quasi experiment using pretest-posttest with nonequivalent group design. The population was all eighth grade students of SMP Negeri 1 Galur, Kulon Progo, Yogyakarta in 2012/2013. Two classes were taken randomly as sample, then the classes were determined randomly using the open-ended and group investigation approaches. The data was collected using test and non-test, analyzed using one sample t-test to determine the effectiveness and also analyzed using Hotteling t's Trace t-test univariate using Bonferroni criteria to determine the effectiveness difference between the two approaches. The results indicated that the open-ended and group investigation approaches were effective, the open-ended was more effective than the group investigation, and the group investigation was more effective than open ended viewed from the mathematical communicative and mathematics learning motivation.Keywords: open-ended, group investigation, communication, problem solving, mathematics learning motivation
Pengembangan Perangkat Pembelajaran Sistem Persamaan Linear Dua Variabel Menggunakan Metode Inkuiri
Authors: Suhadak Muhammad , Wutsqa Dhoriva Urwatul
Published: March 2024

Tujuan penelitian ini menghasilkan perangkat pembelajaran sistem persamaan linear dua variabel menggunakan metode inkuiri yang valid, praktis, dan efektif ditinjau dari prestasi dan curiosity siswa. Jenis penelitian ini adalah penelitian pengembangan. Model pengembangan diadaptasi dari model pengembangan Borg Gall. Pengembangan terdiri atas delapan tahap yaitu pengumpulan data, perencanaan, pengembangan produk awal, uji coba pendahuluan, revisi produk utama, uji coba utama, revisi produk akhir, dan diseminasi dan implementasi. Penelitian ini menghasilkan perangkat pembelajaran sistem persamaan linear dua variabel menggunakan metode inkuiri yang meliputi silabus, RPP, LKS, dan tes. Hasil penelitian menunjukkan bahwa masing-masing silabus, RPP, LKS dan tes valid, praktis, dan efektif. Valid menurut validasi ahli dengan kriteria sangat baik, praktis menurut penilaian guru, lembar penilaian siswa, dan lembar observasi pembelajaran dengan kriteria sangat baik dan efektif ditinjau dari prestasi, dengan 76,74%  siswa mencapai KKM serta efektif ditinjau dari curiosity, dengan 100% angket siswa minimal kategori baik.Kata Kunci: pengembangan, perangkat pembelajaran, sistem persamaan linear dua variabel, metode inkuiri. Developing Two-Variable Linear Equation Systems Teaching Package Using the Inquiry Method AbstractThe study aims to develop a two-variable linear equation systems teaching package using the inquiry method, which is valid, practical, and effective in terms of students’ achievement and curiosity. This study is developmental research, with model adapted from Borg Gall model. The development consists of eight phases data collecting, planning, developing the preliminary form of product, preliminary field testing, main product revision, main field testing, final product revision, and dissemination and implementation. This study has produced a two-variable linear equation systems teaching package using the inquiry method including a syllabus, lesson plan, worksheet, and test. The result of the study shows that each of the syllabus, lesson plan, worksheet, and test is valid, practical, and effective. They are valid according to experts’ judgment, in very good criteria; they are practical according to the teachers’ judgment, students’ judgment, and instruction observation sheet, in very good criteria; they are effective  in terms of achievement, where 76.74% student achieve the standard value and effective in terms of curiosity, where 100% of student questionnaire minimum score is in good criteria.Keywords: development, teaching package, two-variable linear equation systems, inquiry method
Keefektifan Pembelajaran Tipe TPS dan JIGSAW Ditinjau dari Prestasi Belajar Matematika dan Karakter Siswa
Authors: Suratno Suratno
Published: March 2024

Tujuan dari penelitian ini untuk: (1) mendeskripsikan keefektifan pembelajaran kooperatif tipe TPS dan tipe Jigsaw ditinjau dari prestasi belajar matematika dan karakter siswa; (2) mendeskripsikan, perbandingan keefektifan pembelajaran kooperatif tipe TPS dengan pembelajaran kooperatif tipe Jigsaw ditinjau dari prestasi belajar matematika dan karakter siswa pada materi bangun ruang sisi lengkung. Penelitian merupakan penelitian eksperimen semu dengan menggunakan dua kelompok eksperimen. Populasi penelitian adalah siswa kelas IX SMP Negeri 1 Banjarnegara yang terdiri atas delapan kelas, sedangkan sampel penelitian terdiri atas dua kelas yang dipilih secara acak. Instrumen penelitian adalah tes prestasi dalam bentuk soal uraian yang terdiri atas pretest dan posttest. Analisis dilakukan dengan uji F dengan Hotelling’s Trace (  = 0,05) untuk mengetahui beda rata-rata kedua kelas secara multivariat. Uji t dengan kriteria Bonferroni (  = 0,05) dilakukan untuk mengetahui variabel terikat mana yang membuat kedua kelas tersebut berbeda. Simpulan dari penelitian ini adalah (1) pembelajaran  kooperatif tipe TPS dan tipe Jigsaw efektif ditinjau dari prestasi belajar matematika dan karakter siswa dan (2) pembelajaran kooperatif tipe Jigsaw lebih efektif dibanding pembelajaran kooperatif tipe TPS ditinjau dari prestasi belajar matematika  dan karakter siswa pada materi bangun ruang sisi lengkung.Kata kunci: Pembelajaran tipe TPS, Jigsaw, prestasi, karakter siswa. The Effectiveness of Learning TPS and JIGSAW Types Seen from Mathematics Achievement and Student Character AbstractThe purpose of this study was to: (1) describe the effectiveness of TPS and Jigsaw cooperative learning in terms of learning achievement and the student character; (2) describe inequality TPS effectiveness of cooperative learning with Jigsaw cooperative learning in terms of learning achievement and student’s character on the topic content with curved side. The study is quasi-experimental study using two experimental groups. The population of the research includes all students of class IX SMP Negeri 1 Banjarnegara which consists of eight classes, while the sample of the study consisted of two randomly selected classes. The research instrument is the achievement test in the form of essays that consist of the pretest and posttest, and a questionnaire to measure the students character. F test with Hotelling's Trace (α = 0.05) was done to determine the average difference in two classes multivariately. T test with Bonferroni criteria (α = 0.05) was conducted to determine which of the dependent variable that makes these two classes differ. The results showed that: (1) TPS and Jigsaw cooperative learning are effective in terms of learning achievement and the student character; (2) Jigsaw cooperative learning is more effective than TPS cooperative learning in terms of learning achievement and student’s character on the topic content with curved side.Keywords: Learning TPS, Jigsaw types, achievement, student character.
Model Pembelajaran DMR Berorientasi Masalah Kontekstual dan Kemampuan Komunikasi Matematis Siswa
Authors: Utami Eka Sulistya , Suarsana I Made , Ardana I Made , Sugiarta I Made
Published: March 2024

Penelitian ini merupakan penelitian eksperimen semu dengan post-test only group design yang memiliki tujuan untuk mengetahui pengaruh model pembelajaran Diskursus Multi Representasi (DMR) berorientasi masalah kontekstual terhadap kemampuan komunikasi matematis siswa. Populasi penelitian ini adalah seluruh siswa kelas VIII SMP Negeri 2 Manggis semester genap tahun ajaran 2021/2022. Sampel ditentukan dengan teknik cluster random sampling dan melalui pengundian, terpilih kelas VIII A sebanyak 31 siswa sebagai kelas eksperimen dan kelas VIII B sebanyak 31 siswa sebagai kelas kontrol. Instrumen penelitian berupa tes uraian dengan koefisien validitas dan reliabilitas, yaitu 1,00 dan 0,772. Data skor kemampuan komunikasi matematis siswa dianalisis dengan statistik uji-t (one-tailed independent samples t-test) pada taraf signifikansi 5% dan diperoleh bahwa kemampuan komunikasi matematis siswa yang dibelajarkan dengan model pembelajaran DMR berorientasi masalah kontekstual lebih baik daripada kemampuan komunikasi matematis siswa yang dibelajarkan dengan model pembelajaran konvensional (t hitung t tabel, (2,2821,671)). Jadi, dapat disimpulkan bahwa penerapan model pembelajaran DMR berorientasi masalah kontekstual memberikan pengaruh positif yang signifikan terhadap kemampuan komunikasi matematis siswa.
Capturing Usability Problems for People Living With Dementia by Applying the DEMIGNED Principles in Usability Evaluation Methods: Mixed Methods Study
Authors: Engelsma Thomas , Heijmink Simone , Hendriksen Heleen M A , Visser Leonie N C , Lemstra Afina W , Jaspers Monique W M , Peute Linda W P
Published: March 2024

Background

Dementia-related impairments can cause complex barriers to access, use, and adopt digital health technologies (DHTs). These barriers can contribute to digital health inequities. Therefore, literature-based design principles called DEMIGNED have been developed to support the design and evaluation of DHTs for this rapidly increasing population.

Objective

This study aims to apply the DEMIGNED principles in usability evaluation methods to (1) capture usability problems on a mobile website providing information resources for people visiting a memory clinic, including those living with subjective cognitive decline (SCD), mild cognitive impairment (MCI), or dementia, and (2) investigate the realness of usability problems captured by the DEMIGNED principles in expert testing, specifically for mobile websites that act as a means of providing DHTs.

Methods

First, a heuristic evaluation was conducted, with the DEMIGNED principles serving as domain-specific guidelines, with 3 double experts (experienced in both usability and dementia) and 2 usability engineering experts. Second, think-aloud sessions were conducted with patients visiting a memory clinic who were living with SCD, MCI, or dementia.

Results

The heuristic evaluation resulted in 36 unique usability problems. A representative sample of 7 people visiting a memory clinic participated in a think-aloud session, including 4 (57%) with SCD, 1 (14%) with MCI, and 2 (29%) with dementia. The analysis of the think-aloud sessions revealed 181 encounters with usability problems. Of these encounters, 144 (79.6%) could be mapped to 18 usability problems identified in the heuristic evaluation. The remaining 37 (20.4%) encounters from the user testing revealed another 10 unique usability problems. Usability problems frequently described in the think-aloud sessions encompassed difficulties with using the search function, discrepancies between the user’s expectations and the content organization, the need for scrolling, information overload, and unclear system feedback.

Conclusions

By applying the DEMIGNED principles in expert testing, evaluators were able to capture 79.6% (144/181) of all usability problem encounters in the user testing of a mobile website for people visiting a memory clinic, including people living with dementia. Regarding unique usability problems, 50% (18/36) of the unique usability problems identified during the heuristic evaluation were captured by the user-testing sessions. Future research should look into the applicability of the DEMIGNED principles to other digital health functionalities to increase the accessibility of digital health and decrease digital health inequity for this complex and rapidly increasing population.
Computation of Ultrasonic Speed in Binary Liquid Mixture of Acetone and Carbon tetrachloride using Empirical Theories at Different Temperatures
Authors:   Department of Physics, S.D. Degree College Muzaffarnagar 251001 (INDIA), SINGH VIJENDRA , SINGH AJAY KUMAR ,   Department of Physics, Bareilly College Bareilly 243005 (INDIA), KALHANS MOHAN BHUSHAN ,   Department of Chemistry, Bareilly College Bareilly 243005 (INDIA)
Published: March 2024

Experimental ultrasonic velocities of binary liquid mixture of acetone and carbon tetra chloride at temperatures 286.15 K, 289.15 K and 293.15 have been evaluatedat 2 MHz as a function of molar concentrations. The experimental values were compared with various theories for analysis of ultrasonic velocity in binary liquid mixtures such as Nomoto theory (NOM), ideal mixing relation (IMR) of Van Dael andVangeel, Impedance Relation (IDR), Rao’s Specific Velocity Method (Rao) and Junjie’s relations (JR). Chi-square test and average percentage error were applied to investigate the relative applicability of these theories to the present systems. The variation of thermo acoustical parameters of the systems with the mole fraction has been discussed in term of molecular interactions.
A Study on the Translation of Metaphors in Third Volume of Translation of Legend of the Condor Heroes from the Embodied Cognitive Linguistics
Authors: Hu Bo
Published: March 2024

Traditionally, metaphor was only regarded as a rhetorical device and neglected human cognition. Unlike traditional metaphor studies, contemporary metaphor studies not only view metaphor as a linguistic phenomenon, but also a cognitive phenomenon, and a basic way for humans to understand the world. This study starts from the perspective of Embodied Cognitive Linguistics and analyzes the Chinese and English translations of The Legend of the Condor Heroes from the three core principles. It provides a new perspective for metaphor research in martial art.
Intake of immunity boosters by Covid -19 patients of Bikaner city
Authors: Yadav Rekha , Singh Mamta , Raveena Raveena , Partibha Partibha , Bajal Neha
Published: March 2024

Corona virus disease 2019 (COVID-19) is an acute and contagious disease characterized by pneumonia and acute respiratory distress syndrome, which is caused by a novel corona virus (2019-nCoV). Three hundred post Covid-19 adult (19-39 years) patients were selected for present study comprising 150 males and 150 females. Subjects were selected after procuring the list of patients from Prince Bijay Singh Memorial and Shri Ram Hospital, Bikaner (Rajasthan) by purposive/ convenient random sampling on the basis of their willingness to cooperate during the study. The study had been carried out from January to June 2021. Majority of subjects consumed immunity boosters such as chyawanprash (74.0%), homemade decoction (84.3%), golden milk (78.7%) and citrus fruits (100%). Majority of subjects (74.0%) were aware about the meaning of immunity boosters. Majority (80.0%) of subjects were doing yoga daily. Almost equal number of subjects irrespective of gender drunk warm water whole day, it may be due to the reason that guidelines given by WHO has strongly recommended to drink warm water daily. In present investigation data unfurls that all patients (100%) consuming turmeric as immunity booster spices followed by 64.3 % cinnamon, 18.7% garlic and 5.3% coriander. Majority of subject’s (74.0%) consumed chyawanprash, while 26.0 percent did not consume. During pandemic the consumption of turmeric milk found high as it is good antibiotic; also have positive effect on immunity.
Selection strategies for yield enhancement in barley (Hordeum vulgare L.)
Authors: Kumar Yogender , Bishnoi O.P. , Chaurasia Harsh , Sachin Sachin , Ashok Ashok
Published: March 2024

A field experiment with 42 genotypes of barley was conducted in order to select key components and promising genotypes for yield enhancement. The experiment was laid in randomized block design with four replications during 2022-23 at Barley Research Area, Department of Genetics and Plant Breeding, CCS Haryana Agricultural University, Hisar. The genotypic correlation estimates showed significant positive association of grain yield with days to maturity, spike length and 1000-grain weight. The trait viz., days to maturity exhibited the highest positive direct effect on grain yield followed by 1000 grain weight and spike length. Hence, these traits could be considered as suitable selection criterion for the development of high yielding barley varieties. Cluster analysis assigned all the genotypes into four distinct clusters. Cluster I, contained 14 genotypes recorded with shortest plant height having highest number of effective tillers per meter. Cluster II consisted of 8 genotypes, characterized by long spikes and high 1000-grain weight. Cluster III had 11 genotypes with highest grain yield. Cluster IV comprised of nine early maturing genotypes. The average inter-cluster distance was found to be highest between the cluster I and III followed by between cluster I and IV while the lowest inter-cluster distance was observed between clusters III and IV. The improvement in six rowed barley could be achieved through the use genotypes assigned in clusters III, whereas the genotypes which contained in cluster II might be considered as potential parents for two rowed barley to obtain high heterotic response and consequently better segregants for grain yield.
Votantes permisivos: la tolerancia ciudadana ante las transgresiones a la integridad electoral
Authors: Monsiváis-Carrillo Alejandro
Published: March 2024

Los votantes que se identifican con el gobierno en turno tienden a mostrar mayor confianza en las instituciones políticas. Sin embargo, en algunas circunstancias,estos votantes también pueden mostrar mayor tolerancia a las transgresiones perpetradas por el ejecutivo en contra de la democracia. Ese artículo aporta evidencia de que los votantes identificados con el gobierno muestran mayor permisividad ante las violaciones a la integridad electoral cuando el ejecutivo promueve elecciones manipuladas e inequitativas. Este estudio utiliza los datos de la Encuesta Mundial de Valores para analizar las actitudes hacia la integridad electoral en catorce países de América. Estos fueron clasificados en democracias liberales, democracias electorales y autoritarismos competitivos. Los resultados muestran que las percepciones de integridad y malas prácticas electorales están asociadas a lo mismo, la identificación de la ciudadanía con el ejecutivo que al tipo de régimen político. El análisis revela, en lo particular, que los ciudadanos afines al gobierno y que viven en un régimen autoritario-competitivo tienden a ser más permisivos, pues perciben tanta integridad electoral como los votantes en democracias liberales. Estos hallazgos contribuyen a investigar las condiciones asociadas a la tolerancia ciudadana a las transgresiones a la integridad electoral.
matlab based graphical user interface for the monitoring and early detection of keratoconus
Authors: Kallel Fourati I. , Kammoun S.
Published: March 2024

The rapid and extensive growth in medical imaging modalities and their applications is creating a pressing need for computers and computing in image processing, visualization, archival, and analysis. In this article, a Matlab-based graphical user interface (GUI) program is proposed for the monitoring and early detection of keratoconus. The findings show the efficiency of the proposed to detect the early stage of keratoconus. The proposed neural network model produces accuracy, ranging from 96% to 92%. It considers, respectively, 2 classes (normal cornea and keratoconus) and 3 classes (keratoconus, suspected keratoconus or normal) which will increase to 99% with respect to the 2 classes of keratoconus and 94%  to the 3 classes when combining topography parameters with OCT image corneal pachymetry measurements and clinical judgments. 

The compatibility of the graphical interface components with common medical data and image analysis tools facilitates the involvement of the ophthalmologist in the digitization of the medical records, the image processing and the conception of multimodal artificial intelligence applications for medical imaging.
Is Mexico Ready for a Jury Trial?: Comparative Analysis of Lay Justice Systems in Mexico, the United States, Japan, New Zealand, South Korea, and Ireland
Authors: Hiroshi Fukurai  , Clark Robert Knudtson  , Susan Irene Lopez
Published: March 2024

This article examines the possible re-establishment of the jury system in Mexico and explores its broader application in criminal trials. Viable options might include: the use of a “verdict questionnaire” in the form of a list of propositions answered by the jury; vigorous strategies to ensure the security and safety of judges and jurors from defendants involved in drug cartels; introduction of lay participation at a state level; and implementation of a mixed tribunal that allows joint deliberations by professional and lay judges, in addition to all-citizen juries.
Making the Best of it: A Conceptual Reconstruction of Abortion Jurisprudence in the United States and Mexico
Authors: Luisa Conesa Labastida
Published: March 2024

This article makes an effort to identify conceptual categories abstracted from the history of abortion case law in the United States, with the ultimate goal of building a conceptual constitutional framework that is more or less detached from the particularities of the legal system that created it. The result is then used to evaluate the unprecedented ruling by the Mexican Supreme Court in 2008 to decriminalize abortion. The study is divided into five sections. Section I asks why women should be allowed to have abortions. The answer to this question justifies the existence of the right to choose, which involves interests, rights, principles and values. Sections II and III consider how the State should regulate abortion procedures by presenting a detailed regulatory scheme born out of various concepts of United States jurisprudence. Section IV offers some general conclusions on American case law. Finally, Section V focuses on the decriminalization of abortion in the Mexico City Criminal Code. It offers an exercise in comparative law that gives a detailed account of the content of the newly reformed statute and its constitutional challenge in the Mexican Supreme Court, analyzing it through the newly constructed looking glass.
The Autonomy Principle of Letters of Credit
Authors: Roberto Luis Frías García
Published: March 2024

This article explores the erosion that the autonomy principle has suffered in documentary credit transactions. When a seller and a buyer encounter too many hurdles to reach an understanding, the parties decide to ask banks to accept the liability and thus solve the difficulties. The appeal of letters of credit as instruments of payment in international transactions lies in substituting an often unreliable promise of payment from an unknown buyer with the very certain promise from one or more banks. The complexity of a letter of credit arises from the fact that it protects not only the issuing bank and the applicant under a doctrine of strict compliance, but also the beneficiary under the autonomy principle. Through a discussion of recent cases where courts have argued in favour of overcoming the autonomy principle, this article suggests that fraud is not the only exception to this principle of the letter of credit, rather there are other exceptions that could question its autonomy. This article argues that if courts around the world keep interfering with letters of credit turning them into ancillary obligations, soon beneficiaries will be forced to accept exclusively letters of credit issued or confirmed by banks within those jurisdictions whose courts are prone to respect the autonomy of an independent undertaking.
Environmental Law in Mexico: A New Paradigm
Authors: Benjamín Revuelta Vaquero
Published: March 2024

This article proposes a new paradigm for the design and effective implementation of environmental law in Mexico. After briefly reviewing the current status of environmental law, as well as the academic boundaries, the article puts forward a new three-sided paradigm. First, rights and collective actions must be recognized constitutionally as fundamental principles that truly validate a far-reaching legitimacy that transcends personal interests and thus validates collective access to legal environmental protection. Second, a legal procedural framework —procedural network— must be outlined to enforce any related legal action. Third, a series of correlative public policies is needed to promote effective administrative collaboration and to allocate financial resources. The balanced co-existence of the three sides of our paradigm is the key for the successful implementation of an effective environmental law in Mexico and presents a public challenge within the Mexican arena of our times.
Foreign Direct Investment, Restrictions and Privatization: the Mexican Regulatory Experience
Authors: Antonio M. Prida  , Mauricio Foeth
Published: March 2024

This article studies Mexico’s evolution from a protected economy in the 1970s to the free market economy of today. It also presents the different political and economic stages of this process, as well as the important changes made to laws on foreign investment in preparing for the North American Free Trade Agreement (NAFTA), the Mexico-European Union free trade agreement and other bilateral agreements on investment promotion and protection. This has also led Mexico to privatize its economy, its banks and telecommunications in particular. This article also explains the legal framework for this privatization and presents an outline on the possible opening of the electricity sector.
Constitutionalism and Citizenship: Facing the Multicultural Challenge
Authors: Francisco Ibarra Palafox
Published: March 2024

Citizenship, as it was originally conceived, does not satisfy the current expectations of contemporary multicultural societies. In order to better understand the current problems of citizenship and ethno-cultural diversity, this article briefly contextualizes citizenship within the three main historical periods of Western constitutionalism. Notwithstanding that constitutionalism has addressed citizenship through two different models, the national and the republican ones, the article questions these old models and offers new arguments in order to build a transnational and multicultural citizenship. A core proposal of the paper is the creation of a new and more flexible conception of citizenship for ethno-cultural minorities. The new citizenship should meet the following characteristics: 1. Enable ethno-cultural minorities the access to basic rights and liberties; 2. Integrating cultural elements; 3. Including a set of basic socio-economic rights; 4. Incorporating residence as an essential rule for the acquisition of citizenship; 5. For migrants en route, it is essential to recognize the freedom of movement by granting temporary citizenship status.
Dead Hand Constitutionalism: the Danger of Eternity Clauses in New Democracies
Authors: Andrew Friedman
Published: March 2024

The 2009 Honduran constitutional crisis, in which sitting President Manuel Zelaya was captured from the Presidential Palace and flown to Costa Rica under the cover of night, illuminated the danger of entrenched and eternity clauses in fledgling democracies. This article discusses the way such clauses have been used in the past, identifying three general categories of historical eternity clauses. These categories include clauses that address the character of the government, the spirit or principles of the constitutional regime and finally the character of the country. The article also discusses potential problems that arise when such clauses are written into Constitutions of transitional democratic regimes.
Notes on Criminal Process and Constitutional Reform in Mexico Today
Authors: Carlos F. Natarén
Published: March 2024

The constitutional reform on criminal justice and public security enacted on June 18, 2008 represents the most significant change to the Mexican criminal justice system in over 100 years. By laying the groundwork to replace the current “mixed” procedural code with a more adversarial model, the reform completely alters not only the institutional framework of the Mexican criminal justice system but also its modus operandi. A reform of this magnitude can only be explained by the enormous difficulties currently faced by Mexico’s justice system. In order to better understand the nature of this reform, we shall first consider the problems it intends to address. After defining these in detail, we shall explore how these legislative changes may eventually affect the normal criminal process.