bluuebunny/crossref_metadata_2025 huggingface dataset:
POLA PEMASARAN IKAN LAUT DI PASAR BALAI SELASA KECAMATAN RANAH PESISIR KABUPATEN PESISIR SELATAN PROVINSI SUMATRA BARAT
Authors: Yusma Frengki , Junaidi Junaidi , Hertati Rini
Published: February 2022

Tujuan dari penelitian ini adalah untuk mengetahui jalur pemasaran Ikan Lautdi Pasar Balai Selasa Kecamatan Ranah Pesisir, menganalisis margin pemasarn IkanLaut, serta menganalisis bauran pemasaran.Metode yang dilakukan dalam penelitian ini adalah metode survey dengan caramengamati langsung kelapangan bagaimana pola pemasaran ikan laut dari produsensampai kepada konsumen akhir. Responden terdiri dari Nelayan, dan pedagangpengecer. Data yang diambil pada penelitian ini adalah data primer dan data sekunder.Lembaga niaga pemasaran hasil perikanan Laut dipasar Balai SelasaKecamatan Ranah Pesisir Kabupaten Pesisir Selatan terdiri dari produsen atau nelayan,perantara, pedagang pengecer untuk dijual kepada konsumen akhir dalam jumlah yangkecil.Dari hasil analisis dapat diperoleh besar biaya pemasaran dari produsen sampaikepada konsumen mencapai 25,00% sampai 33,33%. Pemasaran akan berjalan denganbaik bila margin dari produsen ke konsumen maksimum 35% (Angipora, 1999)Dari analisis hasil bauran pemasaran terdapat empat faktor yang mempengaruhikeputusan konsumen untuk membeli produk perikanan, ke empat faktor tersebut adalahProduk (product), Harga (price), Promosi (promotion), dan Distribusi (place).
PENGARUH UKURAN MATA JARING (MESH SIZE) ALAT TANGKAP JARING INSANG (GILL NET) TERHADAP HASIL TANGKAPAN DI SUNGAI LIRIK KECAMATAN JANGKAT TIMUR KABUPATEN MERANGIN PROVINSI JAMBI
Authors: Irpan Ali , Djunaidi Djunaidi , Hertati Rini
Published: February 2022

ABSTRAKPenelitian ini dilaksanakan selama 5 bulan yaitu dari tanggal 07 November 2017 sampaitanggal 06 Maret 2018 di Sungai Lirik Kecamatan Jangkat Timur Kabupaten Merangin ProvinsiJambi. Tujuan penelitian ini adalah untuk mengetahui ukuran mata jaring (mesh size) yang terbaikuntuk mengetahui hasil tangkapan dan jenis ikan yang tertangkap dengan ukuran mata jaring (meshsize) jaring insang yang berbeda di Sungai Lirik Kecamatan Jangkat Timur.Alat tangkap jaring insang (gill net) yang dioperasikan dalam penelitian ini sebanyak 3 unitdengan ukuran mata jaring yang berbeda yaitu mes size 1 inchi 1,5 inchi dan 2,5 inchi. Metodeyang digunakan dalam penelitian ini adalah metode observasi lansung ke lapangan dan metodepenentuan stasiun sampel dilakukan dengan cara Purpossive dengan menggunakan Rancak AcakLengkap (RAL) dengan 3 perlakuan dan 5 ulangan dan uji Anova. Parameter yang diamati adalahpengaruh perbedaan ukuran mata jaring (mesh size) terhadap ukuran total ukuran (berat, panjangdan Tinggi) hasil tangkapan, jumlah total (ekor) hasil tangkapan serta jenis ikan yang tertangkap diSungai Lirik.Hasil penelitian menunjukan bahwa perbedaan mata jaring insang (gillnet) 1 inchi, 1,5 inchidan 2 inchi berpengaruh nyata terhadap ukuran ikan (berat (Kg), panjang (cm) dan tinggi (cm)ikan), jumlah total (ekor) ikan yang tertangkap (F Hit > F Tabel). Jenis ikan yang tertangkappengaruh perbedaan mata jaring insang (gillnet) di sungai Lirik di jumpai 3 jenis ikan yaitu semah(Labeobarbus tambra) sebanyak 128 ekor, ikan Kepyur (Barbodes lateristriga) 7 ekor dan ikanBaung (Hemibagrus nemurus) sebanyak 1 ekor serta ukuran mata jaring (mesh size) alat tangkapjaring insang (gill net) yang terbaik digunakan adalah : 2 Inchi Berdasarkan ukuran ikan (Berat,panjang dan tinggi) dan mata jaring (mesh size) 1 Inchi untuk hasil tangkapan.Kata Kunci : Mesh Size, Mata Jaring
STUDI TINGKAT PENDAPATAN PELAKU UTAMA PERIKANAN KERAMBA JARING APUNG (KJA) DI DAM BETUK KECAMATAN TABIR LINTAS KABUPATEN MERANGIN
Authors: Wijaya Noven Meristu , Djunaidi Djunaidi , Hertati Rini
Published: February 2022

Dam betuk merupakan salah satu wilayah perairan yang memiliki peranan penting didalam sektor pertanian maupun perikanan di Kecamatan Tabir Lintas. Dam betuk merupakan bendungan/waduk yang pada awalnya digunakan untuk kegiatan pertanian yang di bangun pada tahun 1981. Namun seiring berjalannya waktu akhirnya Dam betuk dimanfaatkan untuk kegitan perikanan yaitu berupa keramba jaring apung (KJA).Tujuan penelitian adalah mengetahui tingkat pendapatan pembudidaya ikan keramba jaring apung (KJA) di Dam Betuk Kecamatan Tabir Lintas Kabupaten Merangin. Analisis yang digunakan adalah dengan analisis NPV,B/C, IRR dan surplus produsen.Metode penelitian yang digunakan dalam penelitian ini adalah  metode survey dan wawancara langsung kelokasi penelitian, serta pengambilan sampel dengan metode purposive sampling.Hasil analisis usaha Usaha keramba jaring apung (KJA) di Dam Betuk merupakan usaha yang layak untuk diusahakan setelah dilakukan analisis biaya dan manfaat terhadap usaha tersebut dengan nilai NPV sebesar Rp 10.936.524, nilai B/C rasio sebesar 2,24 , nilai IRR sebesar 31,69 % ,  BEP sebesar Rp. 195.757.600 dengan pendapatan persiklus Rp. 2.984.020. Kata kunci : Keramba Jaring Apung (KJA), analisa usaha, tingkat pendapatan
STUDI PARTISIPASI MASYARAKAT TERHADAP KEBERADAAN KERAMBA JARING APUNG DI PERAIRAN DAM BETUK KABUPATEN MERANGIN
Authors: Rahayu Setiyati , Hertati Rini , Djunaidi Djunaidi
Published: February 2022

Partisipasi sebagai suatu konsep dalam pengembangan masyarakat, digunakan secara umum dan luas. Partisipasi Masyarakat adalah keikutsertaan masyarakat dalam proses pengidentifikasi masalah dan potensi yang ada di masyarakat,pemilihan dan pengambilan keputusan tentang alternatif solusi untuk menangani masalah,serta keterlibatan masyarakat dalam mengevaluasi perubahan. Permasalahan utama dalam rangka pengelolaan Keramba Jaring Apung (KJA) di Perairan Dam Betuk dalam pengembanganya mengalami hambatan baik internal maupun eksternal. Tujuan yang ingin di capai dalam penelitian ini adalah : Untuk Mengetahui Tingkat Partisipasi Masyarakat Terhadap Keberadaan Keramba Jaring Apung (KJA) di Dam Betuk di Kabupaten Merangin .Metode penelitian yang digunakan adalah metode survey dan wawancara. Kemudian menggunakan Analisis SWOT berkaitan dengan Tingkat Partisipasi Masyarakat Terhadap Keberadaan Keramba Jaring Apung (KJA) di perairan Dam Betuk Kecamatan Tabir Lintas Kabupaten Merangin. Dengan menilai setiap faktor internal dan eksternal. Berdasarkan hasil penelitian dapat dijelaskan bahwa tingkat partisipasi masyarakat di Tiga Desa/Stasiun yang berada di kawasan Perairan Dam Betuk terhadap keberadaan Keramba Jaring Apung (KJA) di Perairan Dam Betuk yang melibatkan 98 Responden pada kategori Tinggi. dengan nilai 5469 (55,8%)Berdasarkan uraian Analsis SWOT dapat dijelaskan bahwa terdapat 4 (Empat) alternatif strategi yang merupakan hasil Analisis SWOT, pendekatan terhadap masyarakat Pengelola,masyarakat umum dan pemangku kepentingan menjadi alternatif strategi utama untuk meningkatkan pengelolaan Organisasi Pembudidaya ikan di Keramba Jaring Apung KJA, agar maju dan berkembang, serta mandiri dan berkesinambungan.Kata Kunci : Pengelolaan Keramba Jaring Apung di Kabupaten Merangin
STUDI KEANEKARAGAMAN IKAN YANG TERTANGKAP MENGGUNAKAN ATRIBUT RUMPON BERBEDA DI SUNGAI MENTENANG KABUPATEN MERANGIN
Authors: Preniti Renda , Syafrialdi Syafrialdi , Djunaidi Djunaidi
Published: February 2022

Penelitian ini dilakukan di Sungai Mentenang Kecamatan Jangkat Kabupaten Merangin dan penelitian ini dilaksanakan dari bulan Januari 2018 sampai bulan April 2018. Tujuan penelitian adalah untuk mengetahui tingkat keanekaragaman jenis ikan dari penggunaan rumpon dengan atribut yang berbeda di perairan Sungai Mentenang Kabupaten Merangin serta untuk mengetahui Atribut Rumpon yang mana yang lebih disukai oleh ikan di Perairan Sungai Mentenang Kabupaten Merangin.Dari hasil penelitian menunjukkan bahwa Keanekaragaman jenis Ikan yang tertinggi di temukan pada rumpon yang menggukan atribut Ranting Kayu, yaitu sebanyak 32 ekor dengan indeks keanekaragaman sebesar 0,3281 dan indeks keseragaman sebesar 0,950 yang terdiri dari 8 jenis ikan di Stasiun I dan di Stasiun II 6 jenis ikan diantaranya: Ikan Nalis (Labiobarbus lineatus), Senggiring, (Mystus nigreceps), Sebarau (Hampala macrolepidota) Bentulu (Barbichthys laevis)  Semah (Tor soro) Tana (Barbodes binotatus) Puyou (Osteochilus waandersii) dan Kepyur (Barbodes lateristiga). Atribut rumpon yang disukai oleh ikan yaitu menggunakan atribut rumpon Ranting Kayu dengan jumlah hasil tangkapan terbanyak dengan jumlah 8 jenis ikan dengan jumlah individu sebanyak 32 individu. Sedangkan pada atribut rumpon daun kelapa memperoleh tangkapan 6 jenis dengan jumlah 11 ekor dan diikuti oleh atribut lainnya. Kata kunci : Keanekaragaman, Jenis Ikan,  Rumpon Dan Sungai
ESTIMASI SELEKTIVITAS ALAT TANGKAP PANCING DI SUNGAI NILO KECAMATAN MUARA SIAU KABUPATEN MERANGIN PROVINSI JAMBI
Authors: Dewi Roni Asmala , Kholis Muhammad Natsir , Syafrialdi Syafrialdi
Published: February 2022

Selektivitas merupakan salah satu indikator alat penangkapan ikan ramah lingkungan.  Tujuan penelitian ini yaitu untuk mengestimasi selektivitas alat tangkap pancing yang dioperasikan di sungai nilo. Metode yang digunakan dalam penelitian ini adalah metode survei. Data diambil dengan cara observasi langsung kelapangan menggunakan teknik eksperimental fishing. Semua ikan yang tertangkap dianalisis dengan menggunakan formula selektivitas Sparre and Venema (1999). Hasil penelitian menunjukan bahwa pancing yang dioperasikan di sungai nilo memiliki estimasi nilai selektivitas terhadap ikan ukuran mata pancing no. 1 pada panjang 16,537 cm dan ukuran mata pancing no. 3 pada panjang 20,691 cm. Panjang ikan hasil tangkapan yang memiliki panjang terluar di bawah dan diatas nilai perkiraan selektivitas kemungkinan tidak akan memakan umpan karena size ukuran mata pancing lebih besar dan lebih kecil dari bukaan mulut ikan. Kata Kunci : Estimasi Selektivitas, Jambi, Muara Siau, Pancing, Sungai Nilo
Meningkatkan hasil belajar passing atas bola voli melalui pendekatan gaya mengajar latihan dengan menggunakan audio visual
Authors: Nugraha Ugi , Yuliawan Ely
Published: February 2022

Tujuan penelitian ini untuk meningkatkan hasil belajar Passing atas bola voli Pada Siswa Kelas VII SMP Negeri 13 Kota Jambi. Metode yang digunakan yaitu Penelitian Tindakan Kelas. Penelitian melibatkan 2 kolabolator dan dilakukan sebanyak 2 siklus, masing-masing siklus terdiri dari 2 kali pertemuan. Kondisi awal siswa yang diteliti belum bisa passing atas dengan baik. Hasil penelitian menunjukan peningkatan hal ini dapat dibuktikan dari penghitungan hasil belajar siswa meningkat dari data siklus I yaitu 68,57% dan mengalami peningkatan pada siklus II menjadi 88.57 %. Hasil dari siklus pertama terdapat 23 siswa yang sudah bisa melakukan passing atas dengan baik, dan 11 siswa yang belum bisa melakukan passing dengan baik dengan nilai rata-rata siswa pada siklus 1 adalah 73,67. Peningkatan terlihat pada nilai rata-rata kelas di siklus ke dua dengan 31 siswa yang sudah bisa melakukan passing atas dengan baik dan 4 Siswa yang belum bisa melakukan pasing dengan baik. Nilai rata-rata siswa pada siklus 2 dalam pembelajaran passing atas bola voli adalah 82,35. Pendekatan gaya mengajar latihan dengan menggunakan Audio Visual yang di terapkan dalam pembelajaran passing atas bola voli  dapat meningkatkan hasil belajar passing atas bola voli.
EFEKTIVITAS PENAMBAHAN EKSTRAK DAUN PEPAYA (Carica papaya L) UNTUK PENCEGAHAN Saprolegniasis PADA TELUR IKAN MAS PUNTEN (Cyprinus carpio)
Authors: Zubaidah Anis , Samsundari Sri , Jaelani Muhammad Abdul Qodir
Published: February 2022

Pappaya leaf (Carica papaya L) contains antifungal and antibacterial compounds which can be applied to prevent transmission of Saprolegnia sp infections that attack carp eggs (Cyprinus carpio). The method in this study used several treatments, namely treatment A (control), B (papaya leaf extract 0.75 mg / l), C (papaya leaf extract 1 mg / l), D (papaya leaf extract 1.25 mg / l) and treatment of E (papaya leaf extract 1.5 mg / l). The results showed that there were significantly different treatments for the addition of papaya leaf extract to the hatching rate of carp punten eggs, with treatment C (1 mg / l) being the best treatment in increasing the hatching rate of 89.5%. Furthermore, the addition of papaya leaf extract to the prevalence of Saprolegnia sp fungi showed that treatment C (1 mg / l) was the best treatment in suppressing the prevalence of saprolegnia sp fungi with a prevalence rate of only 10.5%. Then the addition of papaya leaf extract to the goldfish survival rate showed a significant difference between treatments, with treatment C (1 mg / l) being the best treatment in increasing the value of Punten Carp survival arte with a survival rate of 94.68%. Therefore from this study it can be seen that the safe dose in the use of papaya leaf extract is to use a dose of 1 mg / l to suppress the prevalence of saprolegnia sp fungi and increase the hatching rate and increase the survival rate of the Punten Goldfish. Keyword: Saprolegnia sp, Papaya Leaves, Punten Carp
FAKTOR-FAKTOR KEMANDIRIAN BELAJAR PESERTA KURSUS KOMPUTER (STUDI KASUS DI KURSUS KOMPUTER TRACOM TANJUNG RAJA KABUPATEN OGAN ILIR)
Authors: Agus Agus , Husin Azizah
Published: February 2022

Penelitian mengenai faktor kemandirian belajar peserta kursus komputer ini memiliki tujuan untuk mendeskripsikan faktor kemandirian belajar dari para peserta kursus. Pada penelitian ini menggunakan pendekatan kualitatif dengan metode deskriptif. Subjek dalam penelitian ini sebanyak lima orang yang merupakan peserta kursus komputer. Pengambilan data dalam penelitian ini menggunakan teknik wawancara dan observasi. Hasil penelitian menunjukkan bahwa dari kelima subjek penelitian telah menunjukkan sikap atau perilaku yang cenderung dipengaruhi oleh faktor dari dalam diri atau faktor internal, seperti sikap tanggung jawab, inisiatif, percaya diri, dan disiplin dalam belajar. Namun dalam penelitian ini tidak menutup kemungkinan bahwa terdapat faktor eksternal seperti dengan ditunjangnya para peserta dalam belajar dengan sarana atau pemenuhan dalam kebutuhan dalam belajar serta pembelajaran di rumah juga didukung dengan suasana rumah yang tidak ramai.
PENGELOLAAN TAMAN BACAAN MASYARAKAT PELOSOK BUMI DI KABUPATEN KARAWANG
Authors: Muthtar Anas
Published: February 2022

Bertujuan untuk mendeskripsikan perencanaan, pengorganisasian, dan pengawasan komunitas baca. Konsep George Robert Terry (2007:31) “Manajemen sebagai proses yang khas, dilakukan untuk menentukan dan mencapai tujuan yang telah ditetapkan dengan menggunakan sumber daya manusia dan sumber daya lainnya”. Pendekatan penelitian kualitatif. Teknik pengumpulan data adalah observasi, wawancara, dan dokumentasi. Subyek penelitian adalah satu pengelola, satu relawan, dan dua mahasiswa warga komunitas membaca Pelosok Bumi, Karawang. Analisis penelitian diperoleh ada empat tahap dalam pengelolaannya dimulai dengan identifikasi kebutuhan pembelajaran pada tahap perencanaan. Pengorganisasian dilakukan dengan mengelompokkan tenaga pengajar ke dalam kelompok belajar. Pelaksanaannya dimulai pada hari Sabtu. Media, strategi dan metode yang digunakan dikembalikan kepada para relawan. Supervisi dilakukan dengan cara langsung masuk ke dalam kelompok belajar dan segera setelah pelaksanaan ada rapat evaluasi pembelajaran. Saran Lembaga dapat menambah relawan agar situasi belajar dapat kondusif.Kata kunci: Manajemen, Komunitas Baca.
ANALISA KARAKTERISTIK TRAKSI DAN EFISIENSI TRANSMISI PADA MOBIL TAWON 664 CC.
Authors: Wicaksono Ichsandityo , Sudrajat Agung , Yusuf Yusvardi
Published: February 2022

Traksi merupakan gaya gesek maksimum yang bisa dihasilkan antara dua permukaan tanpa mengalami slip atau gaya tangensial yang ditransmisikan secara melintang terhadap dua permukaan melalui gesekan atau lapisan fluida yang menghasilkan gerakan, memberhentikan laju, atau mentransmisikan daya. Skripsi ini mempelajari tentang karakteristik traksi berdasarkan pertimbangan efisiensi transmisi yang dihasilkan oleh mobil tawon. dalam penelitian ini penulis melakukan tiga tahapan pengujian. Tahapan pertama adalah melakukan pengujian menggunakan dynotest untuk mengetahui daya aktual serta efisiensi transmisi, tahap kedua melakukan perhitungan sehingga didapat grafik karakteristik traksi kendaraan. Selanjutnya tahap ketiga dilakukan analisa dari hasil grafik karakteristik yang telah didapat sehingga didapatkan kesimpulan. Dari hasil pengujian serta perhitungan diperoleh grafik karakteristik traksi dan efisiensi transmisi, pengujian dynotest menunjukan nilai efisiensi transmisi pada tingkat gigi 1, 2, 3, dan 4 berturut-turut sebesar 97,5 %, 75,8 %, 77,2 % dan 77,9 %. Nilai gaya dorong maksimal pada gigi 1, ,2 ,3 dan 4 berturut-turut sebesar 2,049 kN, 1,047 kN, 0,592 kN, dan 0,385 kN. Setelah dilakukan analisa terdapat loses traksi yang cukup besar pada tingkat gigi 1 menuju gigi 2 sebesar 1,313 kN, pada tingkat gigi 2 menuju gigi 3 sebesar 0,661 kN, dan pada tingkat gigi 3 menuju gigi 4 sebesar 0,209 kN.Kata kunci: Karakteristik Traksi, Dynotest, Transmisi, Mobil Tawon 664 cc.
INOVASI PEMBELAJARAN PADA PENGAJARAN KESELAMATAN DAN KESEHATAN KERJA UNTUK PENDIDIKAN TEKNIK OTOMOTIF DI MASA PANDEMI COVID-19
Authors: Situmorang Hasianna Nopina , Firdaus Firdaus
Published: February 2022

Inovasi pembelajaran yang adaptif dengan situasi normal dan tidak normal sangat diperlukan untuk membelajarkan mahasiswa mencapai kompetensinya. Penelitian ini bertujuan untuk menginovasi sumber belajar dengan proyek pada pengajaran Keselamatan dan Kesehatan Kerja (K3) yang adaptif dipergunakan pada saat pandemi Covid-19. Penelitian dilakukan dengan melibatkan 53 orang mahasiswa Prodi Pendidikan Teknik Otomotif pada Semester Genap 2020-2021. Penelitian dilakukan dengan cara mengemas sumber belajar inovatif yang dilengkapi dengan penugasan dan proyek untuk dipergunakan dalam pembelajaran daring. Pembelajaran dilakukan melalui pemberian tugas proyek mencari kasus terkait risiko kerja, menganalisis dan mencari upaya pengendalian risiko untuk menyelesaikan masalah tersebut. Hasil penelitian menunjukkan bahwa sumber belajar inovatif efektif dalam membelajarkan K3 kepada mahasiswa secara daring. Ketersediaan paket sumber belajar inovatif dengan proyek menjadikan proses belajar lebih menarik dan interaktif karena mahasiswa dapat mengimplementasikan teori yang dipelajari ke dalam pengerjaan tugas proyek. Hasil belajar yang diperoleh dari portofolio berdasarkan penilaian tugas dan evaluasi belajar (M=84,82±8,01), semuanya tergolong baik. Kompetensi dalam bidang K3 tercapai. Inovasi pembelajaran yang dikembangkan ini memotivasi mahasiswa belajar sehingga potensi belajar dapat dioptimumkan di masa pandemi Covid-19.
EFFECT OF CLEARANCE ON THE HEIGHT OF (BURR) ON ARM REAR BRAKE TYPE 45P AT PT. XYZ KARAWANG
Authors: Sumardi Sumardi , Kardiman Kardiman , Suci Farradina Choria
Published: February 2022

Arm rear break is one component of vehicle spare parts found on motorcycles. This component is made using a forming process, where one of the parameters that affects the failure is the clearance value. Therefore, the purpose of this study was to determine the effect of clearance on the burr height of the 45P Arm Rear Break. The arm rear break is made of sheet metal plate material with a thickness of 2.6 mm through the forming process and variations in clearance numbers of 4%, 5% and 6%. For the punching process, a 12 mm diameter punch knife was used. The result of this research is that the highest bar value is produced by 6% clearance of 0.29 mm, then 5% clearance of 0.23 mm and 4% clearance of 0.17 mm. Keywords : Sheet metal, forming, arm rear brake, clearance, burr
RANCANG BANGUN PEMEGANG CAKRAM PADA TRIBOMETER PIN ON DISK BERBASIS MODIFIKASI PADA MESIN BUBUT KONVENSIONAL
Authors: Aziz Abdul , Saefuloh Imam , Susilo Sidik , Hasanah Indah Uswatun , Dzaky Daris Miftah
Published: February 2022

Keausan (wear) adalah hilangnya materi dari permukaan benda padat sebagai akibat dari gerakan mekanik antara permukaan suatu material tersebut dan permukaan lainnya. Tribometer atau Pin-On-Disk merupakan alat dari tribotester yang di gunakan untuk mengetahui gesekan dan keausan suatu bahan material yang saling bersentuhan. Dikarenakan alat Pin on disk membutuhkan biaya yang cukup mahal dan belum adanya uji keausan dengan memodifikasi mesin bubut. Maka dari itu penelitian ini bertujuan merancang pemegang cakram atau disk dengan memodifikasi mesin bubut konvensional sebagai alat pengganti Pin on Disk. Hasil pengujian ini diperoleh diameter poros yang cukup aman digunakan untuk pemegang cakram adalah 40 mm dan hasil pengujian keausan diperoleh nilai faktor keausan terbesar pada stainless steel 316 dengan beban 2 kg tanpa pelumas yaitu 0,000098 (mm³/N.m). Sedangkan untuk beban 3 kg diperoleh nilai faktor keausan terbesar terjadi pada pengujian tanpa pelumas sebesar  yaitu 0,0003215 (mm³/N.m). Dan untuk nilai faktor keausan terkecil terjadi pada pembebanan 2 kg dengan pelumas SAE 40 adalah 0,0001006 (mm³/N.m)
The problem of extremal decomposition of a complex plane with free poles on a circle
Authors: Bakhtin Alexandr , Vyhivska Liudmyla
Published: February 2022

In this paper, the problem concerning the maximum product of the inner radii of $n$ mutually non-overlapping domains symmetric with respect to a unit circle and the inner radius of some domain with respect to the zero raised to a positive degree $\gamma$ is studied. The problem has been solved for $n=\overline{4,7}$ and some $\gamma>1$.
Limit cycles of multi-parameter polynomial dynamical systems
Authors: Gaiko Valery
Published: February 2022

This is an overview of our recent works on the global bifurcation analysis of multi-parameter polynomial dynamical systems. In particular, using our bifurcation-geometric approach, we study the global dynamics and solve the problem on the maximum number and the distribution of limit cycles in a polynomial Euler-Lagrange-Liénard-type mechanical system. We also consider a rational endocrine system by carrying out the global bifurcation analysis of a reduced planar quartic Topp system, which models the dynamics of diabetes. By analyzing global bifurcations and applying the Wintner-Perko termination principle, we prove that such a system can have at most two limit cycles.
On Approximation Properties of a Stancu Generalization of Szasz-Mirakyan-Bernstein Operators
Authors: Tunç Tuncay , Fedakar Burcu
Published: February 2022

In this paper, we have introduced a Stancu generalization of the Szasz-Mirakyan-Bernstein Operators defined on the space of continuous functions defined on a compact interval. We have given a general formula for the moments of that operators. We have used Korovkin's Theorem for uniform approximation under some restrictions. We have obtained some results for the approximation rates in terms of modulus of continuity. Finally, we gave some Voronovskaya-type theorems.
Evaluating the practice in Swedish school-age educare: Issues and contradictions
Authors: Ackesjö Helena
Published: February 2022

This article reports how teachers in Swedish school-age educare evaluate (SAEC) their practice. The study was conducted within a research- and development programme and is based on 47 teachers’ written reflections about performing evaluations. The reflections have been analysed using various neo-institutional logics. The results indicate that the teachers’ focus, regarding both the children and the practice, is directed differently when they are guided by different logics. When guided by the market logic, teachers focus on customer preferences and customer satisfaction. Guided by the professional logic, teachers focus the collective as well as the activities and the organisation around them. Guided by the bureaucratic and state logics, the teachers focus on the formal teaching, the individual child, and the school-age educare goal fulfilment. The results also show issues and contradictions concerning how to evaluate, what to evaluate, and when to evaluate. One possible claim is that the learning processes at the school-age educare are broad and complex, and thus difficult to “mould” to fit into evaluation schemes.
PENGARUH KUALITAS INFORMASI PADA SIKAP TERHADAP MEREK HEXA IMAGES
Authors: Sulistiani Putri Budi
Published: February 2022

Abstract This study examines the influences of information quality and attitude toward brand. This study uses Hexa Images as the object of the study. Hexa Images is a multimedia services company especially for Wedding project. This study analyze Hexa Images’s Instagram account as one of its marketing tools. Using Quantitative and AMOS-SEM used for research analysis methods. Data collection through direct questionnaire with the criteria of respondent are male or female who is already plan for wedding in a short time. The measured variable in this study is that information quality and attitude toward brand were measured using a 5-point Likert scale. This study found that information quality has an influence of attitude toward brand,

 

Keywords: information quality, attitude toward brand, social media, Instagram.
Hotels in Distress: Surviving an Economic Downturn Through Non-Traditional Contracting
Authors: McKee Leslie
Published: February 2022

The hospitality industry is no stranger to market fluctuation, but with the onset of a global pandemic, 2020 left its mark as the worst year on record for the industry. With vacancy permeating hotels across the nation, hotel owners faced a year of tough financial decisions, while the unrelenting demands of mortgage payments and operating expenses loomed in the background. Uncertainty became the new normal, and the term “unprecedented” became commonplace as the pandemic lingered beyond initial expectations. The one-year anniversary of the 2019 novel coronavirus (“COVID-19”) pandemic passed without effect as the crisis situation spilled over into a new year. Struggling to survive the economic devastation accompanying the pandemic, many hoteliers pursued alternate income sources. However, alternate usage is not an entirely foreign concept in the hotel industry. While the emergency response to COVID-19 has been by far the largest scale the nation has experienced, it is certainly not the first. Hotels across the country have contracted in the past to provide emergency response in disaster situations, such as hurricanes, wildfires, floods, and for non-disaster housing for the homeless. As of the time of publication of this Comment, the pandemic itself has waned, but the economic effects remain. Although no one can truly predict when the pandemic will fully subside and the economy will return to normal, the current situation is surely a temporary one. What can hotel owners learn from the global pandemic, and will this crisis permanently change owners’ business models? The most resilient of business owners will glean valuable lessons, adapt their approach, and press forward. This Comment highlights key areas of concern with alternate usage and provides practical guidance for hotel owners struggling to survive the pandemic’s crippling effect on the economy and implement plans for the future.
Sperchon milisai nov. sp., an overlooked new species of water mites (Acari, Hydrachnidia, Sperchontidae) from Montenegro and Croatia, based on morphological and DNA barcode evidence
Authors: Pešić Vladimir
Published: February 2022

In the present study a new species, Sperchon milisai sp. nov. is described from Montenegro and Croatia based on morphological and DNA barcoding data. Surprisingly, morphological evidence revealed that the new species is most similar to S. ampliscutatus Pešić & Smit, 2020, from Kyrgyzstan, confirmed by the phylogenetic analysis based on COI data. The average K2P-distance between DNA-barcode sequences of S. milisai sp. nov. and S. ampliscutatus was estimated at 15.51±1.6%.
Термодинамические свойства, процессы и циклы
Authors: Mesnyankin S. Yu , Ezhov A. D. , Sotnik E. V.
Published: February 2022

Учебное пособие содержит основные и дополнительные теоретические сведения, описание пяти лабораторных работ по наиболее важным разделам термодинамики, охватывающих задачи термодинамического анализа циклов и определения термодинамических свойств рабочих тел. Особое внимание уделено постановке эксперимента и анализу получаемых данных, в частности определению основных термодинамических свойств воздуха при атмосферном давлении, изучению термодинамического процесса сжатия воздуха и определению по результатам измерений давлений и объемов показателя политропного процесса, работы сжатия, теплоемкости, количества теплоты, изучению принципа работы выбранного двигателя и исследованию влияния основных характеристик цикла на его результирующую работу и термический коэффициент полезного действия, исследованию термодинамических характеристик движущегося потока газа в сужающемся сопле. Предназначено для студентов, обучающихся по направлению подготовки 24.03.05 — «Двигатели летательных аппаратов».
Düşük Riskli Üçüncü Trimester Gebelerde Fetal Doppler İncelemenin Doğum Ağırlığı ile İlişkisi
Authors: İNCESU ÇİNTESUN Feyza Nur
Published: February 2022

Amaç: Bu çalışmada spontan vaginal doğum yapmış, düşük riskli term gebelerde doğum öncesi bakılan obstetrik Doppler ölçümleri ile fetal doğum ağırlığı arasındaki ilişkiyi araştırmayı amaçladık.

Gereç ve yöntemler: Çalışma kesitsel bir çalışma olup prospektif dizayn edilmiştir.. Çalışmaya 18-45 yaş arasında, 37-41 gebelik haftasında olan ve başvuru anından itibaren 72 saat içerisinde doğum yapmış tekiz gebeler dahil edilmiştir. Doğum öncesi bakılan umblikal arter (UA), uterin arter (UtA) ve orta serebral arter (MCA) Doppler değerleri ile doğum kilosu ilişkisi araştırılmıştır.

Bulgular: Çalışmaya toplam 134 hasta dâhil edildi. Hastaların ortalama yaşı 26,3 ± 6,1 olup, gebelik haftaları ise 39 (37-41) olarak bulundu. UA PI, RI ve S/D oranları ile doğum kilosu arasında istatistiksel olarak anlamlı olmayan, negatif yönlü orta derecede korelasyon izlenmiştir. Ortalama UtA PI ile fetal kilo arasında zayıf, pozitif yönlü ve istatistiksel olarak anlamlı olan ilişki bulunmuştur (r=0,270; p=0,002). Gebelik haftasına göre düzeltme yapıldığında ortalama UtA RI ile fetal kilo arasında zayıf, negatif yönlü ve istatistiksel olarak anlamlı ilişki bulunmuştur (r=-0,245; p=0,004). Serebroplasental oran (CPR) ile doğum ağırlığı arasında gebelik haftasından bağımsız zayıf pozitif ilişki bulunmuştur (r=0,054; p=0,539)

Sonuç: Çalışmamızda gebelik haftasından bağımsız olarak üçüncü trimester düşük riskli gebeliklerde artmış UtA rezistansı ile düşük doğum ağırlığı ilişkili bulunmuştur. UA, MCA ve CPR ile doğum kilosu arasında gebelik haftası düzeltilse de güçlü bir ilişki gözlenmedi.
The Aligned Orbit of WASP-148b, the Only Known Hot Jupiter with a nearby Warm Jupiter Companion, from NEID and HIRES
Authors: Wang Xian-Yu , Rice Malena , Wang Songhu , Pu Bonan , Stefánsson Gudmundur , Mahadevan Suvrath , Radzom Brandon , Giacalone Steven , Wu Zhen-Yu , Esposito Thomas M. , Dalba Paul A. , Avsar Arin , Holden Bradford , Skiff Brian , Polakis Tom , Voeller Kevin , Logsdon Sarah E. , Klusmeyer Jessica , Schweiker Heidi , Wu Dong-Hong , Beard Corey , Dai Fei , Lubin Jack , Weiss Lauren M. , Bender Chad F. , Blake Cullen H. , Dressing Courtney D. , Halverson Samuel , Hearty Fred , Howard Andrew W. , Huber Daniel , Isaacson Howard , Jackman James A. G. , Llama Joe , McElwain Michael W. , Rajagopal Jayadev , Roy Arpita , Robertson Paul , Schwab Christian , Shkolnik Evgenya L. , Wright Jason T. , Laughlin Gregory
Published: February 2022

We present spectroscopic measurements of the Rossiter–McLaughlin effect for WASP-148b, the only known hot Jupiter with a nearby warm-Jupiter companion, from the WIYN/NEID and Keck/HIRES instruments. This is one of the first scientific results reported from the newly commissioned NEID spectrograph, as well as the second obliquity constraint for a hot Jupiter system with a close-in companion, after WASP-47. WASP-148b is consistent with being in alignment with the sky-projected spin axis of the host star, with

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.°

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. The low obliquity observed in the WASP-148 system is consistent with the orderly-alignment configuration of most compact multi-planet systems around cool stars with obliquity constraints, including our solar system, and may point to an early history for these well-organized systems in which migration and accretion occurred in isolation, with relatively little disturbance. By contrast, previous results have indicated that high-mass and hot stars appear to more commonly host a wide range of misaligned planets: not only single hot Jupiters, but also compact systems with multiple super-Earths. We suggest that, to account for the high rate of spin–orbit misalignments in both compact multi-planet and isolated-hot-Jupiter systems orbiting high-mass and hot stars, spin–orbit misalignments may be caused by distant giant planet perturbers, which are most common around these stellar types.
Cognitive Changes in Clinical Clerkship Medical Students Who Underwent Online Enrichment in COVID-19 Pandemic
Authors: Wardani Ida Aju Kusuma , Kurniawan Lely , Ryalino Christopher
Published: February 2022

Background: Because of the COVID-19 pandemic, teaching methods to clinical clerkship students (CCS) at our institution was switched mainly to online method. The purpose of this study was to determine the cognitive changes of online enrichment of CCS at the Department of Psychiatry, Faculty of Medicine, Udayana University during the COVID-19 pandemic.
Methods: This is a descriptive, observational study. We compared two sets of students: class of 2016 (Group N) and class of 2015 (Group F). Students in group N (N=99) experienced online enrichment in psychiatry during the first week of their enrollment, while those in group F (N=63) had offline enrichment in the same topic. They answered similar pretest and posttest and we collected and analyzed the results. We used Fisher’s exact test to calculate the p value.
Results: The pretest results were indifferent in both groups, 42 vs. 57 in Group N and 27 vs. 36 in Group F (p=0.542). The posttest shows a marked improvement in terms of CCS managed to obtain the passing grade, 97 vs. 2 in Group N and 55 vs. 8 in Group F (p=0.008). 
Conclusion: CCS who underwent online enrichment had a higher percentage of passing the test compared to those who underwent offline enrichment.
Unemployment as a Medical and Social Problem and Incidence among Unemployed Young People
Authors: Duisekova Samal , Kerimbayeva Zakira , Mustafin Adil' , Mussakhanova Akmaral , Turgambayeva Assiya , Stukas Rimantas
Published: February 2022

BACKGROUND: The problem of unemployment among young people worries the world for many generations, since young people are the stratum of the population on which the future in each country depends (Brydsten et al. 2016). The socioeconomic situation of young people, especially the unemployed, is alarming, which is not always emphasized in the priorities of social policy. The study of incidence among unemployed youth is carried out in many countries, where it is noted that the unemployed people have worse mental and physical health compared to employed one (Grzegorczyk and Wolff, 2020).

AIM: Our study aims to assess the difference between the incidence of working and unemployed youth.

METHODS: The study involved 536 people, from 18 to 29-years-old, among whom women - 69.2%, men - 30.8%, from all regions of Kazakhstan.

RESULTS: The results of the work showed that the level of youth unemployment increased during the pandemic by an average of 1% in the world and in Kazakhstan, young people had limitations in receiving medical and social assistance due to financial constraints, deficiency of health insurance and personal reluctance. It was also found that social status is a significant predictor of vaccination (beta = −0.225, R2 = 0.0507, p < 0.001) and a predictor of alcohol consumption (beta = −0.0908, R2 = 0.00824, p = 0.037). More often unemployed youth noted health problems over the past year (42.3%) than in other social groups (35.6–37.8%), a similar situation was observed when assessing the frequency of chronic diseases (p = 0.365).

CONCLUSION: In our study, we show that the decline in health by virtue of unemployment is likely to be significant, since our estimated effect implies that the health of young people is almost 10% worse (in absolute terms) due to unemployment compared to the employed population. This further underscores that unemployment is a public health problem that needs more attention. Furthermore, the results obtained show that unemployment has the most negative consequences for vulnerable people, including young people.
Taxonomic and functional diversity of birds in a rural landscape of high Andean forest, Colombia
Authors: Sarmiento-Garavito Lina P. , García-Monroy Juan S. , Carvajal-Cogollo Juan E.
Published: February 2022

We evaluated the taxonomic and functional diversity of birds in a rural landscape in the north-eastern Andes of Colombia. We carried out seven field trips and used transects of 300 m, separated from each other by 500 m in the dominant plant cover of the rural landscape. We measured alpha (α) and beta (β) diversity at both the taxonomic and functional levels. We registered 10 orders, 21 families, 56 genera and 63 species of birds. In wooded pasture, we recorded 55 species and a relative abundance of 66% and 44 and 34% for an Andean forest fragment. The species that contributed the most to the dissimilarity between the covers wereZonotrichia capensis,Turdus fuscater,Mecocerculus leucophrys,Atlapetes latinuchusandCrotophaga ani. We identified nine functional types, where G1 was made up of small species with anissodactyl and pamprodactyl legs that were insectivorous, frugivorous and nectarivorous as the best represented. The FEve and FDiv were 0.51 and 0.74, respectively in the Andean forest fragment plant cover and, for the wooded pasture, the FEve was 0.45 and the FDiv was 0.81. Both cover types contributed to the diversity of the rural landscape and the dynamics that existed between them formed a complementary factor that favoured the taxonomic and functional richness of the characterised rural landscape.
Corrigendum: The distribution and behavioral characteristics of plateau pikas (Ochotona curzoniae). ZooKeys 1059: 157–171. https://doi.org/10.3897/zookeys.1059.63581
Authors: Qiu Jun , Ma Cang , Jia Ying-Hui , Wang Jin-Zhao , Cao Shou-Kai , Li Fang-Fang
Published: February 2022

With the help of Wen-Jing Li, the authors realized there was a mistake of surface temperature in the paper above. The surface temperature in the paper refers to the temperature recorded in images which was detected by the temperature receptors of the field infrared camera, instead of the real surface temperature. As there was no shelter to the field infrared camera in alpine meadow grasslands, the temperature of the camera increased rapidly under the sunshine. Thus the conclusion of the preferable temperature for pikas may be around 31~35°C was not right, neither the temperature in Figure 6. As there was no equipment to measure the surface temperature in the observation, it is hard to restore the original surface temperature. The data in Figure 6 can be used to compare the behavior characteristics of plateau pikas at different relative temperature.

The authors would like to declare that the temperature in the paper refers to the temperature recorded in images which was detected by the temperature receptors of the field infrared camera, instead of the real surface temperature. The historic high air temperature in Dari County was 23.2°C (Wang et al. 2018). The temperature of the camera could increase rapidly under the sunshine, so the temperature in the paper can only be taken as a reference of the relative temperature.

The authors would like to give an extra special thanks to Wen-Jing Li, who provides the professional advice and help.
Reservoir sands characterisation involving capacity prediction in NZ oil and gas field, offshore Niger Delta, Nigeria
Authors: Nzekwu Anthony I ,   Department of Applied Geophysics, Federal University of Technology, Akure (FUTA), Ondo State, Nigeria, Abraham-A Richardson M ,   Institute of Energy and Environment, University of São Paulo (IEE-USP), São Palo, Brazil
Published: February 2022

Hydrocarbon exploration is a high-risk venture; therefore, pre-determining reservoirs' capacities is pertinent, reducing associated uncertainties regarding hydrocarbon presence and production. This study delineates hydrocarbon-bearing sands, determines the reservoir area extent, computes the associated petrophysical parameters and presents the reserve volume estimation based on wireline logs with integrated 3-D seismic surveys. It evaluates and indicates three (3) hydrocarbon-bearing reservoirs sands (NZ(R1), NZ(R2) and NZ(R3)) of varying thicknesses (h) across three (3) wells reservoirs NZ(R1), NZ(R2) and NZ(R3). The reservoir properties, including porosity (Ф), free fluid index (FFI), permeability (K), fluid saturations and reservoir thickness (h), represent potentially viable hydrocarbon reservoir units across the field. It presents the estimation of the recovery factor based on the FFI values. Across the reservoirs, Ф is 0.28 in NZ(R1), 0.27 in NZ(R2) and 0.26 in NZ(R3). FFI is 0.26 in NZ(R1), 0.25 in NZ(R2) and 0.26 in NZ(R3). K is 10388 mD in NZ(R1), 8304mD in NZ(R2), and 6580 mD in NZ(R3). Water saturation (Sw) is up to 0.4, 0.36 and 0.20 with the associated hydrocarbon saturation (Sh) of 0.60, 0.64 and 0.80 corresponding to NZ(R1), NZ(R2) and NZ(R3). Considering the delineated reservoir areas based on the prevailing fault assisted structural style, the total volume of recoverable oil is 11.3×106, while the gas capacity is 1.8 ×109 cuft. These findings will aid the field's oil and gas reservoir developmental activities and serve as reference points to related studies involving similar objectives.
Conjugacy classes of left ideals of Sweedler's four-dimensional algebra $ H_{4} $
Authors: Gao Fengxia ,   School of Science, Henan Institute of Technology, Henan, Xinxiang, Henan 453003, China, Chen Jialei ,   College of Mathematics, Faculty of Science, Beijing University of Technology, Beijing 100124, China
Published: February 2022

Let $ A $ be a finite-dimensional algebra with identity over the field $ \mathbb{F} $, $ U(A) $ be the group of units of $ A $ and $ L(A) $ be the set of left ideals of $ A $. It is well known that there is an equivalence relation $ \sim $ on $ L(A) $ by defining $ L_1\sim L_2\in L(A) $ if and only if there exists some $ u\in U(A) $ such that $ L_{1} = L_{2}u $. $ C(A) = \{[L]|L\in L(A)\} $ is the set of equivalence classes determined by the relation $ \sim $, which is a semigroup with respect to the natural operation $ [L_1][L_2] = [L_1L_2] $ for any $ L_1, L_2 \in L(A) $. The purpose of this paper is to describe the structures of semigroup of conjugacy classes of left ideals for the Sweedler's four-dimensional Hopf algebra $ H_{4} $.
A survey of numerical solutions for stochastic control problems: Some recent progress
Authors: Jin Zhuo , Qiu Ming , Tran Ky Q. , Yin George
Published: February 2022

This paper presents a survey on some of the recent progress on numerical solutions for controlled switching diffusions. We begin by recalling the basics of switching diffusions and controlled switching diffusions. We then present regular controls and singular controls. The main objective of this paper is to provide a survey on some recent advances on Markov chain approximation methods for solving stochastic control problems numerically. A number of applications in insurance, mathematical biology, epidemiology, and economics are presented. Several numerical examples are provided for demonstration.
A Reliable and Smart E-Healthcare System for Monitoring Intravenous Fluid Level, Pulse, and Respiration Rate
Authors: Nimi W.S. , Jose P. Subha Hency , Jose P. Subha Hency , Jegan R.  , El-Shahat Adel
Published: February 2022

The paper presents reliable and quality maintenance of intravenous fluid level, pulse rate and respiration rate measurement system in healthcare networks. Implementing information and communication technology becomes essential to monitor an elderly patient’s health conditions in the hospital environment. In this paper, a continuous monitoring system is being developed to monitor the level of the intravenous fluid, pulse rate and respiration rate during pandemic situations with an alarm indication. The integration of pressure sensor, Strain gauge sensor, PPG sensor, and Piezo sensor with low-cost microcontroller provides a reliable and quality maintenance of an intravenous fluid level. Also, it gives an accurate measurement of pulse rate and respiration rate. Advanced signal processing tools have been used in this paper for processing and feature extraction. The hardware implementation of the proposed wireless monitoring system is done using a microcontroller programming environment that consumes meager power and provides reliable monitoring.
Performance and egg qualities of laying japanese quails fed yam peel meal based diets with enzymes complex+yeast supplementation
Authors: Aguihe Paschal Chukwudi , Kehinde Abiodun Solomon , Halidu Shafiu Kilishi , Joshua Deji Abiodun , Samuel Kufre Ukom , Komolafe Priscillia Lolade , Ilaboya Ibinabo Imuetinyan
Published: February 2022

A 10-week experiment was conducted to evaluate the combined effect of enzyme complex + yeast (Maxigrain®, MXG®) supplementation of sun-dried yam peel meal (YPM) based diet of laying Japanese quails (Coturnix coturnix japonica) on performance and egg quality. A total of 240, seven-weeks old quails were distributed in a completely randomize design with four dietary treatments and five replicates of 12 quails each. Diet 1 served as the control diet without YPM while diet 2, 3, and 4 contained 25, 50, and 75% YPM with MXG® supplementation (1g per kg), respectively. MXG® supplementation in YPM diets improved (p < 0.05) egg mass and feed conversion per egg. Increasing levels of YPM with MXG® supplementation did not show any effect (p > 0.05) on internal and external egg quality attributes except for eggshell weight and thickness which was higher (p < 0.05) in quails fed 75% YPM diet. It was concluded, therefore, that the utilization of YPM as an alternative dietary ingredient with MXG® supplementation can be tolerated in the diets of laying Japanese quails up to 75% inclusion level without any negative effect on productive and egg quality performance.
Relationship between tooth loss, nutritional status and consumption of macro and micronutrients in elderly people from southern Brazil
Authors: Nascimento Mariele Andrade do , Francelino Valéria Campos Mariano , Porcelli Ilma Carla de Souza , Yokoyama Márjori Fritola , Poli-Frederico Regina Célia , Fracasso Marina de Lourdes Calvo , Neves-Souza Rejane Dias das , Maciel Sandra Mara
Published: February 2022

Maintaining a functional natural dentition plays an important role in keeping a satisfactory nutritional status. The aim of this study was to evaluate the relationship between oral health conditions determined by the presence of edentulism and the number of missing teeth, nutritional status and consumption of nutrients by the elderly. This cross-sectional study comprised 494 independent elderly of both genders, over 60 years of age, registered at the Brazilian public health service in Londrina, southern Brazil. The data collection included: oral examinations; anthropometric measurements by calculating the Body Mass Index (BMI); analysis of food consumption based on a multiple pass 24-hour dietary recall and a food intake frequency questionnaire; and structured interviews to obtain sociodemographic information. Multiple linear regression, the Fisher’s Exact test, chi-square and Mann‑Whitney tests, were applied at a 5% significance level. The prevalence of edentulism was 47.3%; this predominated in females, age group from 65 to 74 years, low education level and low/medium economic classification. A larger number of underweight and fewer number of overweight elderly were recorded among the edentulous versus dentate participants (< 0.0001). Significantly lower consumption of several nutrients, as well as fruit, was recorded among the edentulous group. In particular, carbohydrates, vitamins (B1, B9 and C), and the majority of the minerals studied were associated with a larger number of missing teeth. In conclusion, tooth loss was associated with the food consumption pattern of some macro- and micronutrients and the nutritional status of the Brazilian elderly.