bluuebunny/crossref_metadata_2025_split huggingface dataset:
Joint synchronization and parameter estimation in OFDM signaling
Authors: Karami Sara , Bahramgiri Hossein 
Published: November 2022

AbstractChallenges in cognitive radio and tactical communications include recognizing anonymously received signals and estimating parameters in a blind or semiblind manner. In this paper, we examine this issue for orthogonal frequency division multiplexing (OFDM) signaling. There are several parameters in OFDM signaling, and the blind receiver must extract and consider the synchronization issue. We assume that the blind receiver is aware of modulation type, OFDM, and not aware of chip duration and the length of cyclic prefix. First, we present new criteria based on kurtosis to estimate these parameters and compare their performance at different levels of additive white Gaussian noise with methods based on correlation, kurtosis, maximum likelihood, and matched filter. Then, we perform synchronization and estimate the start time based on these criteria and several new criteria in two steps: fine and coarse synchronization. Finally, in a more practical setup, we present the idea of jointly estimating the mentioned parameters and the signal start time as coarse synchronization. We compare different criteria and show that one of the proposed criteria has the highest efficiency.
A Matter of Inclusion: A Cluster-Randomized Trial to Access the Effect of Food Vouchers Versus Traditional Treatment on Tuberculosis Outcomes in Brazil
Authors: Reis-Santos Barbara , Locatelli Rodrigo , Oliosi Janaína , Sales Carolina M. , do Prado Thiago Nascimento , Shete Priya B. , Riley Lee W. , Maciel Ethel L. 
Published: November 2022

ABSTRACT.
We assessed the effectiveness of food vouchers as a social protection strategy to enhance the adherence to tuberculosis treatment in health-care facilities in Brazil between 2014 and 2017. A cluster-randomized controlled trial was performed in four Brazilian capital cities. A total of 774 adults with newly diagnosed pulmonary tuberculosis were included in this study. Eligible participants initiated standard tuberculosis treatment per National Tuberculosis Program guidelines. Health clinics were assigned randomly to intervention groups (food voucher or standard treatment). The food voucher was provided by researchers, which could be used by subjects only for buying food. Most people with tuberculosis were poor, did receive benefits of the Bolsa Familia Program, and were unemployed. By Poisson regression analysis, with the total number of subjects included in the study, we found that individuals with tuberculosis who received food vouchers had a 1.13 greater risk of cure (95% CI, 1.03–1.21) compared with those who did not receive food vouchers. The provision of food vouchers improved outcomes of tuberculosis treatment and it should be enhanced even further as social protection for people with tuberculosis.
Leptospira Infection in Rural Areas of Urabá Region, Colombia: A Prospective Study
Authors: Quintero-Vélez Juan C. , Rodas Juan D. , Rojas Carlos A. , Ko Albert I. , Wunder Elsio A. 
Published: November 2022

ABSTRACT.
The objective of this study was to analyze the eco-epidemiological aspects of Leptospira seroprevalence and seroincidence and its associated factors in two municipalities of northwest Colombia. A prospective study was performed in rural areas of Urabá, Antioquia, Colombia. The study enrolled 597 people between November 2015 and January 2016, of which 274 were followed up 1 year later. Serologic testing was performed by a microscopic agglutination. The outcomes were seroprevalent and seroincident cases, and the primary exposure was an outdoor occupation. A binary and mixed-effect multinomial logistic regression model was used to estimate factors associated with seroprevalent or seroincident cases of Leptospira infection. The overall Leptospira seroprevalence was 27.81% (95% confidence interval: 23.62–32.49), and the overall cumulative seroincidence for Leptospira was 14.60% (95% confidence interval: 10.33–20.23). Multivariable analysis showed that factors associated with L. interrogans serogroups seropositivity were outdoor occupation, male gender, older age, the presence of dirt floor in the household, and the presence of piglets and opossums. It also showed that factors associated with other Leptospira species serogroups were the presence of pit latrines and of turkeys. In addition, the multivariable model of seroincident cases of L. interrogans serogroups evidenced outdoor occupations, the presence of rats, and corn cultivation as risk factors. Likewise, the multivariable model for seroincident cases of other Leptospira species showed that the presence of hunting canines and cassava cultivation were risk factors. We found specific factors associated with the transmission of Leptospira serogroups contribute to the understanding of the epidemiology of Leptospira infection in rural areas of Urabá, Colombia.
UPAYA MENINGKATKAN PEMAHAMAN KONSEP PERKALIAN DAN PEMBAGIAN SISWA MENGGUNAKAN MODEL DEMONSTRASI BERBANTUAN MEDIA PERMEN DI KELAS IIC SDN 04 NANGA PINOH
Authors: Mutia Yana Setiani , Sarassanti Yumi , Akip Muhammad 
Published: November 2022

abstract: this study aim to improve students` understanding of concepts in mathematics, especially the multiplication and division of students using a demonstration model assisted by the media candy in class IIC SDN 04 Nanga Pinoh. The subjects in this study were 20 students consisting of 9 pemale students and 11 male students. This research is a classroom action research with two cicles namely cicle I and cycle II. The object of this research is to increase the understanding of the concept of multiplication and division of students of IIC grade at SDN 04 Nanga Pinoh. Then the data collection techniques inthis study used observation and documentation, research instruments using student worksheets and lesson plan implementation sheets which could be assessed by looking for percentages obtained from observation sheets. Understanding of students` concepts increases after applying the demonstration model with the help of candy media, it can be seen in the first cycle that reached 35% and the achievement in the second cycle reached 90%. So there is an increase in the average from cycle I to II that is equal to 55% Keywords: Concept Understanding, Demonstration Model, Candy Media Abstrak: Penelitian ini bertujuan untuk meningkatkan pemahaman konsep siswa pada mata pelajaran matematika khususnya materi perkalian dan pembagian siswa menggunakan model demonstrasi berbantuan media permen di kelas IIC SDN 04 Nanga Pinoh. Subjek pada penelitian ini yaitu 20 siswa yang terdiri dari 9 orang siswa perempuan dan 11 orang siswa laki-laki. Penelitian ini adalah penelitian tindakan kelas dengan dua siklus yaitu siklus I dan siklus II. Objek pada penelitian ini adalah meningkatkan pemahaman konsep perkalian dan pembagian siswa kelas IIC SDN 04 Nanga Pinoh. Kemudian teknik pengumpulan data dalam penelitian ini menggunakan lembar observasi dan dokumentasi, instrumen penelitian menggunakan lembar kerja siswa dan lembar keterlaksanaan RPP yang dapat dinilai dengan mencari persentase yang diperoleh dari lembar observasi. Pemahaaman konsep siswa meningkat setelah diterapkan model demonstrasi dengan berbantuan media permen, dapat di lihat pada siklus I mencapai 35% dan pencapaian pada siklus II mencapai 90%. Sehingga adanya peningkatan rata-rata dari siklus I ke siklus II yaitu sebesar 55%. Kata Kunci: Pemahaman Konsep, Model Demonstrasi, Media Permen.
PERSEPSI SISWA TERHADAP PENGGUNAAN KUIS DALAM PEMBELAJARAN METEMATIKA
Authors: Sapaliza Miming , Sarassanti Yumi , Permatasari Rindah 
Published: November 2022

Abstract: The quiz motivation and learning outcomes of students, Based the result observations march 13,2020 at SMPN 6 Nanga Pinoh, consirended frighetenig to people student. Therefore student perceptions are needed. Aim know students perceptionsof quizzesin learning procces of mathemetics. This type of descriptive research ues a Cross Sectional Survey design (one tim-data collection). The research sample was students of class VIII B even semester of the academic year 2020 - 2021, a total of 21 students consisting of 12 male students and 9 female students. The research method a survey method, a qualitative approach. This type of descriptive research uses a Cross Sectional Survey design (one-time data collection). Perception questionnaire sheet instruments, assessment questionnaire sheets for quizzes, and teacher interview sheets. Non-test data collection techniques. Descriptive statistical data analysis used the calculation of mean or mean (M), median (Me), mode (Mo), and standard deviation (SD). The results showed responses to the questionnaire of students' perceptions at SMP Negeri 6 Nanga Pinoh of whit a 66,7% Very Positive and The results of questionnaire responses to the quiz questions were 90,5% Very Positive. The conclusion researching students' perceptions of quizzes is categorized as Very positive.Keywords: Students' Perceptions of the Use of Quizzes. Abstrak: Kuis berpengaruh terhadap motivasi dan hasil belajar peserta didik. Berdasarkan hasil observasi 13 maret 2020 di SMPN 6 Nanga Pinoh. Kuis dianggap menakutkan bagi siswa maka persepsi siswa sangat diperlukan tujuan untuk mengetahui persepsi siswa terhadap penggunaan kuis dalam proses pembelajaran metematika. Jenis penelitian deskriptif menggunakan desain Cross Sectional Survey (pengumpulan data satu kali). Sampel penelitian siswa kelas VIII B semester genap tahun ajaran 2020 – 2021, Jumlah 21 siswa terdiri dari 12 siswa laki – laki dan 9 siswa perempuan. Metode penelitian adalah metode survey, pendekatan kualitatif. Instrumen lembar angket persepsi, lembar angket penilaian kuis, dan lembar wawancara guru. Teknik pengumpulan data non tes dengan analisis data statistik deskriptif menggunakan perhitungan mean atau rerata (M), median (Me), modus (Mo), dan standar deviasi (SD). Hasil penelitian menunjukan respon angket persepsi siswa di SMP Negeri 6 Nanga Pinoh dengan persentase 66,7% Sangat Positif dan hasil respon angket penilaian terhadap soal kuis dengan persentase 90,5% Sangat Positif. Kesimpulan dalam penelitian persepsi siswa terhadap penggunaan kuis dikategorikan Sangat positif.Kata Kunci :Persepsi Siswa Terhadap Penggunaan Kuis
MATHEMATICAL HABIT OF MIND DALAM PEMECAHAN MASALAH DIKAJI DARI BERPIKIR LUWES PESERTA DIDIK SMP
Authors: LARASATI YESTIKA , SUGIATNO SUGIATNO , IJUDDIN ROMAL 
Published: November 2022

Abstract: This study aimed to determine the Mathematical Habits of Mind of students in solving story problems in terms of the way of thinking of students in class IX of SMP Negeri 16 Pontianak. The form of research used in this study is a survey. Sources of data used in this study were seven students of class IX SMP Negeri 16 Pontianak. The data obtained in this study was a pre-research test to determine student ability level, flexible thinking test questions in the form of story questions, and interviews. The potential for flexible thinking is seen based on the mathematical abilities of students who have different levels. However, based on the study results, it can be seen that the class IX students of SMP Negeri 16 Pontianak have the potential for thinking that changes the potential perspective of 32.1%; potential considering options 7.1%; potential to produce alternatives 17.8%.Keyword: Mathematical Habits of Mind, Flexible Thinking, Problem Solving. Abstrak: Penelitian ini bertujuan untuk mengetahui kebiasan berpikir matematika peserta didik dalam menyelesaikan cerita yang ditinjau dari cara berpikir peserta didik kelas IX SMP Negeri 16 Pontianak. Bentuk penelitian yang digunakan dalam penelitian ini adalah survei. Sumber data yang digunakan dalam penelitian ini adalah tujuh peserta didik kelas IX SMP Negeri 16 Pontianak. Data yang diperoleh dalam penelitian ini adalah tes pra penelitian untuk mengetahui tingkat kemampuan peserta didik, soal tes luwes berupa cerita dan wawancara. Potensi luwes dilihat berdasarkan kemampuan matematis siswa yang memiliki tingkat yang berbeda-beda. Namun berdasarkan hasil belajar dapat diketahui bahwa peserta didik kelas IX SMP Negeri 16 Pontianak memiliki potensi berpikir yang mengubah potensi sebesar 32,1%; potensi mempertimbangkan opsi 7,1%; potensi untuk menghasilkan alternatif 17,8%.Kata Kunci: Mathematical Habits of Mind, Berpikir Luwes, Pemecahan Masalah.
KEMAMPUAN KOMUNIKASI MATEMATIS SISWA PADA MATERI BILANGAN PECAHAN BIASA DAN CAMPURAN
Authors: WIDI ISLAMI QUEEN TITAH , Sarassanti Yumi , APSARI NURUL 
Published: November 2022

Abstract: This study aims to describe students' mathematical communication skills in the material of ordinary and mixed fractions. The research subject is the seventh grade students of SMP Negeri 2 Nanga Pinoh and the object of this research is the students' mathematical communication skills. The type of research used in this research is descriptive qualitative research usingsurvey research methods. The instrument used is in the form of 3 test questions of mathematical communication skills in the form of descriptions. Research result obtained from the student's communication ability test showed that 43.5% of students answered according to the indicator of mathematical communication ability in writing and categorized as low and 63.05% of students answered according to the indicator of mathematical expression of communication ability and was categorized as moderate.Keywords: Mathematical Communication, Fractions Abstrak: Penelitian ini bertujuan untuk mendeskripsikan kemampuan komunikasi matematis siswa pada materi bilangan pecahan biasa dan campuran. Dengan subjek penelitian adalah siswa kelas VII SMP Negeri 2 Nanga pinoh dan objek dalam penelitian ini adalah kemampuan komunikasi matematis siswa. Jenis penelitian yang digunakan dalam penelitian ini adalah penelitian deskriptif kualitatif dengan menggunakan metode penelitian survey. Adapun instrumen yang digunakan yaitu berupa 3 soal tes kemampuan komunikasi matematis berbentuk uraian. Hasil penelitian diperoleh dari tes kemampuan komunikasi siswa menunjukan bahwa 43,5% siswa menjawab sesuai indikator kemampuan komunikasi matematis menulis dan dikategorikan rendah serta 63,05% siswa menjawab sesuai indikator kemampuan komunikasi matematis ekspresi dan dikategorikan sedang.Kata Kunci: Komunikasi Matematis, Bilangan Pecahan
PEMAHAMAN KONSEP SISWA PADA MATERI TEOREMA PYTHAGORAS
Authors: HENDRAKUSS HENDRAKUS , Sarassanti Yumi , LESTARI NOVIKA 
Published: November 2022

Abstract: From this research, we will see how students understand the concept of the Pythagorean theorem. This research is a qualitative research with descriptive method. The subjects of this study were students of class X IPA I and IPA II SMA Sinar Kasih Nanga Pinoh, with a total of 36 students. Furthermore, to obtain the data used are tests and interviews. Data analysis followed the model of Miles and Huberman, and the results showed that students still did not understand the concept.Keywords: Concept Understanding, Pythagorean Theorem Abstrak: Dari penelitian ini, kita akan melihat bagaimana siswa memahami konsep teorema Pythagoras. Penelitian ini merupakan penelitian kualitatif dengan metode deskriptif. Subyek penelitian ini adalah siswa Kelas X IPA I dan IPA II SMA Sinar Kasih Nanga Pinoh, dengan total 36 siswa. Selanjutnya, untuk meperoleh data yang digunakan adalah tes dan wawancara. Analisis data mengikuti model Miles dan Huberman, dan hasilnya menunjukkan siswa masih kurang memahami konsep. Kata Kunci : Pemahaman Konsep , Teorema Pythagoras
ANALISIS..KEMAMPUAN..PEMECAHAN..MASALAH BERDASARKAN..LANGKAH..POLYA PADA..MATERI PROGRAM..LINEAR..KELAS X SMK BINA KUSUMA
Authors: ARIANTO RIYAN , HARYADI EKO FERY , SARASSANTI YUMI 
Published: November 2022

Abstrak : Penelitian ini bertujuan untuk mendeskripsikan kemampuan pemecahan masalah siswa kelas X Akuntansi SMK Bina Kusuma Nanga Pinoh pada materi program linear. Penelitian ini merupakan penelitian kualitatif deskriptif dengan alat pengumpul data berupa tes, wawancara dan dokumentasi. Subjek dalam penelitian ini adalah siswa kelas X Akuntansi yang berjumlah 16 siswa. Objek penelitian ini adalah kemampuan pemecahan masalah siswa. Instrumen yang digunakan adalah lembar berupa soal essai dan lembar wawancara terkait kemampuan pemecahan masalah. Hasil penelitian menunjukan kemampuan pemecahan masalah siswa berdasarkan langkah polya pada materi program linear kelas X SMK Bina Kusuma tergolong ke dalam kriteria cukup dengan persentase rata-rata sebesar 57% dan indikator langkah polya yang paling dominan adalah indikator merencanakan penyelesaian dengan perolehan sebanyak 86,64%.Kata Kunci : Kemampuan Pemecahan Masalah, Program Linear Abstract : This study aims to describe the problem solving abilities of class X Accounting students at SMK Bina Kusuma Nanga Pinoh on linear programming material. This research is a qualitative descriptive study with data collection tools in the form of tests, interviews and documentation. The subjects in this study were students of class X Accounting, totaling 16 students. The object of this research is the students' problem solving ability. The instrument used is a sheet in the form of essay questions and interview sheets related to problem solving abilities. The results showed that students' problem solving abilities based on polya steps on linear program material for class X SMK Bina Kusuma belonged to the sufficient criteria with an average percentage of 57% and the most dominant indicator of polya steps was the indicator planning completion with the acquisition of 86.64%.Keywords: Problem Solving Ability, Linear Program
The Effect of Promotion, Product Review, and Security on Purchasing Decision
Authors: Tyas Wirastomo Jizenji , Sri Handayani Langgeng 
Published: November 2022

This research uses qualitative methods through field surveys of a sample of Tokopedia Online Store site is one of the Indonesian marketplaces for buying and selling online. and the most visited in 2021. Promotions, Product Reviews, Security of the Tokopedia Application can affect purchase intentions using the Tokopedia Application. The purpose of this study was to determine the effect of promotions, product reviews, and application security on purchasing decisions using the Tokopedia application at the Bekasi Civil Society Communication Forum. The population of 1771 members, 100 samples, and research samples were obtained using the Slovin formula with a standard error of 10%. There were 95 respondents who appeared. The results of this study indicate that there is a positive effect of promotional variations (X1) on purchasing decisions (Y) from these variables. Product evaluation variable (X2) has a positive effect on purchasing decisions (Y). There is a positive effect of the security variable (X3) on purchasing decisions (Y). The Adjusted R-squared value of 0.720 indicates that 70.2% of the variation in purchasing decisions can be explained by the three independent variables in the regression equation.
PENINGKATAN MUTU PERGURUAN TINGGI MELALUI RENCANA STRATEGIS DAN ANALISIS SWOT
Authors: Pangkey Jefry Melcheor , Giban Yoel , Legi Hendrik 
Published: November 2022

Peningkatan kualitas pendidikan ditentukan oleh mutu institusi pendidikan dalam melaksanakan tugas dan tanggung jawabnya sebagai penyelengara pendidikan. Mutu sebuah institusi perguruan tinggi berkaitan erat dengan tugas perencanaan, pengelolaan pembelajaran dan penilaian hasil penyelenggaraan Pendidikan melalui sebuah rencana strategi dan penyusunan analisis SWOT. Penelitian ini berupaya menguraikan bagaimana peningkatan mutu perguruan tinggi melalui RENSTRA dan analisis SWOT. Hasil penelitian ini menunjukkan bahwa untuk meningkatkan mutu suatu perguruan tinggi maka perguruan tinggi harus membuat analisis dan menyusun rencana kerja institusi yang bermuara pada peningkatan mutu institusi. Metode yang digunakan pada penelitian ini adalah metode kualitatif deskripsi penulis menggunakan berbagai sumber baik jurnal maupun buku-buku sebagai referensi guna mendukung penelitian yang dibahas.
ANALISA PENGARUH TEKNIK SANGKUP TERHADAP KONDISI SUHU, INTESITAS CAHAYA DAN KELEMBAPAN DI DALAMNYA
Authors: Simatupang Ulina Catarina Jenni , Sinaga Asmina Herawaty , Sipayung Mei Linda 
Published: November 2022

Sangkup adalah suatu metode dalam budidaya tanaman yang dimanfaatkan sebagai naungan atau rumah budidya tanaman untuk melakukkan kegiatan perkecambahan dan pertumbuhan. Sangkup dapat dibuat dari bahan pelastik bening atau pelastik transparan serta dapat juga dibuat dari bahan pelastik yang berwarna. Metode sangkup menciptakan habitat mikro dengan kondisi iklim seperti suhu,intesitas cahaya dan kelembapan udara menjadi lebih optimum. Sangkup dengan ketinggian 80 cm menciptakan suhu habitat mikronya sebesar 23,80C sedangkan sangkup dengan ketinggian 120 cm menciptakan suhu rata-rata sebesar 24,10C. Penggunaan sangkup, memudahkan masuknya cahaya matahari dari segala arah sehingga terjadi sintesis hormon auxin secara merata pada tanaman. Kelembapan udara 80-90% di dalam habitat mikro sangkup merupakan kondisi terbaik dalam pembentukan akar di waktu pertumbuhan tanaman. Tanaman yang di tumbuhkan di dalam sangkup selama enam minggu menunjukkan keberhasilan sebanyak 58% pada saat aklimatisasi.
ANALISIS FAKTOR INTERNAL DAN EKSTERNAL YANG MEMPENGARUHI HASIL BELAJAR KOGNITIF PADA MATA PELAJARAN IPS KELAS VIII SMP NEGERI 4 PEMATANG SIANTAR TAHUN AJARAN 2022/2023
Authors: Gultom Iyen Yulieta Anggreni , Sibagariang Susy Alestriani , Simatupang Leo Fernando 
Published: November 2022

Penelitian ini bertujuan untuk mengetahui apakah terdapat faktor-faktor yang dominan pada hasil belajar kognitif siswa pada mata pelajaran IPS siswa kelas VIII SMP Negeri 4 Pematang Siantar T.A 2022/2023. Jenis penelitian ini menggunakan metode penelitian kuantitatif deskriptif, dimana metode ini bertujuan menggambarkan hasil penelitian serta menarik kesimpulan. Populasi pada penelitian ini berjumlah 154 siswa dengan menggunakan teknik random sampling serta dihitung dengan menggunakan rumus slovin maka sampel diperoleh sebanyak 111 responden. Teknik analisis data dilakukan dalam beberapa tahap yaitu reduksi data, penyajian data, dan menarik kesimpulan. Hasil penelitian menunjukan faktor yang lebih dominan dari variabel faktor internal dan eksternal pada hasil belajar kognitif siswa mata pelajaran Ilmu Pengetahuan Sosial. Dimana nilai t-hitung variabel faktor internal dan eksternal (X) 10,708 > t-tabel 1,98197. Maka dapat disimpulkan bahwa Ha diterima. Adapun faktor-faktor yang dominan pada hasil belajar kognitif siswa yaitu faktor lingkungan keluarga yang memiliki presentase sebesar 56,75% dan faktor kesehatan yang memiliki presentase sebesar 51,35%.