bluuebunny/crossref_metadata_2025 huggingface dataset:
Kinerja Filter Pasir Lambat Dalam Menurunkan Fe Dan Mn
Authors: Lela Mukmilah Yuningsih
Published: January 2022

Air baku merupakan air yang berasal dari bawah tanah yang dikenal dengan nama artesis. Air tersebut mempunyai kadar besi (Fe) dan mangan (Mn) yang cukup tinggi. Tujuan dari penelitian ini adalah untuk mengetahui kinerja filter pasir lambat (slow sand filter) dengan menggunakan media pasir aktif dan karbon aktif untuk mengurangi besi dan mangan. Parameter yang akan digunakan untuk mengetahui kinerja dari filter pasir lambat dengan media filter pasir dan karbon aktif ini dibatasi pada penurunan kadar besi (Fe) dan mangan (Mn). Dari hasil penelitian diperoleh penurunan konsentrasi besi 0.0641 mg/L dengan effisiensi 97.54% dengan media filter pasir aktif, penurunan konsentrasi mangan 0.1112 mg/L dengan effisiensi 78.28% dengan media filter pasir aktif, penurunan konsentrasi besi 0.0145 mg/L dengan effisiensi 99.33% dengan media filter pasir aktif-karbon aktif, penurunan konsentrasi mangan 0.0654 mg/L dengan effisiensi 90.62% dengan media filter pasir aktif-karbon aktif. Kinerja filter dengan media filter pasir aktif-karbon aktif membutuhkan waktu lebih lama yaitu 36 hari dibandingkan dengan media filter pasir yang membutuhkan waktu 28 hari dengan debit 0.0005 L/d. Terdapat perbedaan efisiensi penurunan kadar Fe maupun Mn dari ke-6 debit yang digunakan.
Pemanfaatan Fly Ash (Abu Terbang) Batubara untuk Pembuatan Semen Portland Pozzolan
Authors: Ate Romli
Published: January 2022

Fly ash (abu terbang) batubara biasanya masih mengandung komponen-komponen/senyawa dianataranya terdiri dari SiO2, Al2O3, Fe2O3, CaO dan sebagian kecilnya adalah unsur-unsur seperti Na2O, MgO dan K2O serta pengotor lainnya. Unsur- unsur utama tersebut merupakan bahan Pozzolan, yaitu bahan yang mengandung senyawa silica atau silica alumina, dimana bahan Pozzolan itu sendiri tidak mempunyai sifat mengikat seperti semen, karena mempunyai bentuknya yang halus dan masih mengandung kadar air, maka senyawa tersebut akan bereaksi secara kimia dengan senyawa kalsium hidroksida pada keadaan temperatur ruangan, dan membentuk senyawa yang memiliki sifat-sifat seperti semen (kalsium silikat dan aluminat hidrat), sehingga fly ash tersebut dapat dicampur dengan semen portland menjadi semen portland pozzolan.Tahapan pengerjaan penelitian dilakukan adalah limbah fIy ash tersebut dimulai dengan proses penggilingan dan pengayakan dengan menggunakan ayakan 270 mesh, kemudian diaktifkan dengan berbagai variasi temperatur pengaktifan yaitu 400oC, 500oC dan 600oC. Setelah diaktifkan, fly ash tersebut dicampur dengan semen portland tipe I yang selanjutnya dibuat beton untuk diuji secara mekanis, yaitu dengan kuat tekan. Dari hasil pengujian kuat tekan tersebut, umur beton yang 3 hari, 7 hari dan 28 hari dengan suhu pengaktifan fly ash 400oC, memiliki kuat tekan yang tinggi yaitu 148.88 kg/cm2, 220 kg/cm2 dan 260 kg/cm2.
Pengaruh Artificial Aging Terhadap Sifat Mekanik Hasil Lasan Tig Aluminium Seri 6013 T4
Authors: Martijanti
Published: January 2022

Hasil pengelasan yang diterapkan pada paduan aluminium seri 6xxx tidak selalu menghasilkan sambungan dengan kualitas yang baik, hal ini disebabkan oleh adanya penurunan sifat mekanis selama proses pengelasan. Salah satu cara yang digunakan untuk meningkatkan sifat mekanis adalah proses artificial aging (penuaan buatan) yang dilakukan pada temperatur 180oC sedangkan waktu agingnya divariasikan 2 jam, 3 jam, 4 jam, dan 5 jam. Penelitian ini bertujuan untuk menganalisa pengaruh waktu penahanan pada saat aging terhadap hasil lasan paduan aluminium, sehingga diperoleh kualitas hasil lasan yang menunjukkan sifat mekanis yang optimal. Paduan aluminium yang digunakan adalah Aluminium seri 6013 T4.

Data penelitian yang diperoleh adalah kekuatan luluh, kekuatan tarik, perpanjangan, distribusi kekerasan, kekasaran permukaan dan struktur mikro terhadap sample uji tanpa proses artificial aging dan setelah proses artificial aging . Dari hasil penelitian diperoleh peningkatan dari nilai kekuatan tarik (20-90)% maupun kekerasan (30-95)% pada paduan aluminium seri 6013 setelah proses artificial aging . Dari hasil pengujian kekasaran permukaan bahwa nilai Ra, Rz dan Rmax jika dibandingkan dengan nilai material awal, maka nilai optimal terjadi pada kondisi waktu aging yang 3 jam, sedangkan pengaruh artificial aging setelah pengelasan terhadap struktur mikro akan menghasilkan penghalusan terhadap presipitat.
Sistem Static Inverter Pada Kereta Rel Listrik HOLEC-BN
Authors: Taufik Hidayat
Published: January 2022

Sistem static inverter (SIV) pada KRL Holec-BN dengan teknologi VVVF (variable voltage variable freguency), mengubah tegangan input nominal 1.500 VDC menjadi tegangan output 380 VAC, tiga fasa, 50 Hz serta 110 VDC dan 137 VDC. SIV melayani beban berupa sistem kompresor, ventilasi, lampu-lampu penerangan, kontrol drive/pengereman, dll. Beban/pengguna daya listrik yang dilayani oleh SIV bisa saja berhenti beroperasi pada saat terjadi kondisi darurat. Ini membantu sistem/beban tersebut tetap bekerja jika salah satu STV berhenti dan masih beroperasi Jika kedua SIV mengalami gangguan. Seperti disebutkan di depan, KRL Holec-BN mengoperasikan dua unit SIV pada setiap trainset KRL. Frekuensi gangguan dan kerusakan SIV pada KRL Holec-BN termasuk tinggi. Supaya keandalan KRL ini dapat dipertahankan pada level yang dapat diterima, maka langkah perbaikan diperlukan guna mencegah gangguan dan kerusakan terus berlanjut. Keandalan yang tinggi diperlukan agar ketersediaan KRL juga tinggi sehingga mampu memenuhi harapan masyarakat pengguna jasa dalam memperoleh angkutan perkeretaapian yang aman, selamat, nyaman, andal, tepat waktu, dll.
Klasifikasi Suara Manusia Dengan Menggunakan Jaringan Syaraf Tiruan Dan Algoritma Levenberg-Marguadt
Authors: Gunawan Abdillah
Published: January 2022

Teknologi pengenalan suara saat ini telah mengalami perkembangan terutama dalam hal speech processing. Speech processing merupakan suatu cara untuk mengekstrak informasi yang diinginkan dari sebuah sinyal suara. Penelitian ini membahas sistem klasifikasi suara manusia male dan female. Mengeksitrak ciri dari sinyal suara setiap frame pada domain waktu dan freguency domain sangat membantu untuk menyederhanakan dan mempercepat perhitungan. Adapun fitur-fitur untuk suara atau audio antara lain Short Time Energy, Zero Crossing Rate, Spectral Centroid dan lain-lain. Hasil pengujian sistem menunjukkan bahwa klasifikasi suara manusia dengan menggunakan jaringan syaraf tiruan backpropagation dan algoritma Levenberg-Marguadt untuk perubahan matriks bobotnya sangat baik dan cepat karena kompleksitas perhitungan yang tidak terlalu tinggi. Database sample suara sebanyak 40 buah dengan data test sebanyak 4 suara. Output dari sistem adalah hasil klasifikasi yang telah dikenali dengan nilai kemiripan 0,5 sebagai male dan <0,5 sebagai female.
Maxilon Blue GRL Boyar Maddesinin İllit Kil Minerali İle Gideriminin Optimizasyonu
Authors: VOLKAN Nilgün , OZMETİN Elif
Published: January 2022

Yüksek miktarda kimyasal madde içeren tekstil endüstrisi atıksuları önemli çevresel kirletici kaynaklarındandır. Çalışmada, tekstil endüstrisinde ürünlerin boyanmasında kullanılan katyonik boyar maddelerden olan Maxilon Blue GRL’nin ucuz ve ülkemizde bol bulunan illit kil minerali ile giderimi araştırılmıştır. FTIR, XRF ve SEM analizleri ile kil mineralinin karakterizasyonu yapılmıştır. Optimizasyon yöntemi olarak Yanıt Yüzey Yöntemi’nin (YYY) Merkezi Kompozit Tasarımı (MKT) kullanılmıştır. Optimizasyon yönteminde başlangıç boyar madde konsantrasyonu (100-500 mg/L), katı sıvı oranı (0,2-0,6 g/L), pH (4-8) ve sıcaklık (15-55 °C) bağımsız değişkenler olarak, yüzde giderim verimi ve adsorbent kapasitesi (q) ise bağımlı değişkenler olarak seçilmiştir. MKT’den belirlenen tasarım şartlarında kesikli sistemde deneyler gerçekleştirilmiş ve elde edilen deneysel sonuçlar YYY’de değerlendirilerek yüzde giderim verimi ve adsorbent kapasitesinin hesaplanabileceği model denklemler türetilmiştir. Yüzde giderim verimi ve adsorbent kapasitesi için elde edilen deneysel sonuçlar ile model sonuçları karşılaştırılmış ve % 95 güvenilirlik seviyesi için R2 değerleri sırası ile 0,9845 ve 0,9509 olmuştur. Ayrıca ANOVA analizi yapılarak prosesi etkileyen parametreler ve parametrelerin ikili etkileşimleri ortaya konulmuştur. Yüzde giderim verimi ve adsorbent kapasitesini maksimum yapan şartlar ayrı ayrı belirlenmiş ve bu şartlarda doğrulama deneyleri yapılmıştır. Yüzde giderim verimi için elde edilen optimum şartlar; başlangıç konsantrasyonu 100 mg/L, pH 4, katı sıvı oranı 0,6 g/L ve sıcaklık 15 °C olarak belirlenmiş ve bu şartlarda %100 boya giderimi sağlanmıştır. Adsorbent kapasitesi için elde edilen optimum şartlar ise; başlangıç boya konsantrasyonu 250 mg/L, pH 8, katı sıvı oranı 0,2 g/L ve sıcaklık 55 °C olarak belirlenmiştir, bu şartlarda 631,5 mg/g adsorbent kapasitesi elde edilmiştir.
Mevcut Bir Eğitim Yapısında Enerji Verimliliğini İyileştirmeye Yönelik Bir Analiz
Authors: GÜLAÇMAZ Özlem , BAŞDEMİR Hüseyin , GÜLAÇMAZ Erdem
Published: January 2022

Yapı sektörü, yapım ve kullanım aşamaları göz önüne alındığında ülkemizde ve dünyada enerji tüketiminde önemli bir paya sahiptir. Bu durum yapıların enerji etkin hale getirilmesi ihtiyacını doğurmuştur. Mevcut yapıların enerji etkin hale dönüştürülmesinde iki yöntem bulunmaktadır. İlk olarak mevcut yapının yıkılıp yeniden yapılması yöntemi, diğeri ise mevcut yapının uygun enerji etkin tasarım kriterleri doğrultusunda iyileştirilmesidir. Bu çalışmada mevcut bir yapının YBM (Yapı Bilgi Modelleme) ve BEM (Bina Enerji Modelleme) aracılığıyla ısıtma enerjisi analiz edilmiştir. Pasif ve aktif sistemler incelenmiş ve yapılarda uygulanabilirliğine değinilerek yenilenebilir enerji kullanımı değerlendirilmiştir. Pasif sistemler olarak yapının; pencerelerinde ve dış duvarlarında farklı U değerine sahip alternatiflerin simülasyon programları aracılığı ile ısıtma enerjisi üzerine etkisi irdelenmiştir. Aktif sistemler olarak da yapıya PV paneller eklenmiş, HVAC işletim sisteminde yüksek verimli sistemler tercih edilmiş ve simülasyon sonuçları değerlendirilmiştir.
The Influence of Leadership Style and Motivation on Employee Performance
Authors: Ayu Kartini Putri , Airlangga Putra Bayu , Tridayanti Hermien , Damayanti Elok
Published: January 2022

In today's era of globalization, company competition is growing rapidly to find new ideas to achieve company goals. This research was conducted at Dairy Queen Surabaya with the aim of knowing (1) the influence of leadership style on employee performance, (2) the effect of motivation on employee performance, and (3) the effect of leadership style and motivation together on employee performance. This study is a quantitative study with a sample of 30 respondents and a questionnaire was used to collect data related to the variables in this study. Using the validity test and reliability test using SPSS 18.0 for Windows. Furthermore, classical assumption test includes multicollinearity test and heteroscedasticity test. While testing the hypothesis in this study using multiple regression analysis and the coefficient of determination and hypotheses. Data analysis using multiple linear regression analysis technique and the results of this study are leadership style, motivation partially and simultaneously significant effect on employee performance.
Resistance Selection of 12 Genotypes of Chrysanthemum Against Thrips parvispinus (Thysanoptera: Thripidae)
Authors: Musalamah  , Budi Rahardjo Indijarto , Soehendi Rudy , Sanjaya Lia
Published: January 2022

Hama Thrips parvispinus merupakan salah satu faktor pembatas dalam sistem produksi bunga krisan. Penggunaan tanaman genotipe tahan merupakan salah satu upaya pengendalian hama T. parvispinus pada krisan yang ramah lingkungan. Penelitian ini bertujuan mengetahui ketahanan beberapa genotipe krisan mutan Balai Penelitian Tanaman Hias (BALITHI) terhadap hama spesies T. parvispinus. Penelitian dilaksanakan di rumah lindung Instalasi Penelitian dan Pengkajian Teknologi Pertanian (IP2TP) BALITHI Segunung dari bulan Januari sampai Desember 2019. Sebanyak 10 genotipe krisan mutan BALITHI dan 2 genotipe introduksi (Fiji Kuning dan Fiji Putih) digunakan dalam penelitian dengan Rancangan Acak Kelompok 3 tiga ulangan.  Metode skrining menggunakan hama T. parvispinus. yang ada di alam atau tanpa investasi. Variabel pengamatan meliputi intensitas serangan hama, persentase serangan hama, persentase bunga layak panen, dan diameter bunga. Hasil penelitian menunjukkan krisan mutan BALITHI Mayang Ratih agak tahan terhadap hama Thrips ini dengan rata-rata intensitas dan persentase serangan hama paling rendah serta bunga layak panen tertinggi serta diameter bunga memenuhi syarat sebagai bunga krisan potong tipe standar. Genotipe Mayang Ratih selanjutnya dapat direkomendasikan sebagai tetua tahan T. parvispinus. untuk program pemuliaan bunga potong krisan.  

Kata kunci: bunga, Dendrathema grandiflora, hama, intensitas serangan
The Effect of Citrus Farming Practices on Huanglongbing (HLB) Disease Severity in Sambas, West Kalimantan
Authors: Zuhran M. , Mudjiono Gatot , Puspitarini Retno Dyah
Published: January 2022

Beberapa praktik budidaya dilaporkan mempengaruhi kesesuaian agroekosistem bagi perkembangan penyakit tanaman. Namun demikian, praktik-praktik budidaya jeruk yang mempengaruhi perkembangan penyakit huanglongbing (HLB) dan serangga vektornya yaitu kutu loncat jeruk (KLJ) Diaphorina citri belum banyak diketahui. Penelitian ini mempelajari pengaruh praktik budidaya jeruk terhadap intensitas penyakit HLB melalui survei singkat selama dua minggu pada 37 kebun jeruk yang berlokasi di Kabupaten Sambas. Parameter pengamatan adalah intensitas serangan penyakit HLB, kelimpahan KLJ, dan praktik budidaya yang diterapkan. Pengaruh praktik budidaya terhadap intensitas serangan penyakit HLB dianalisis melalui structural equation modeling berbasis partial least squares (SEM-PLS). Hasil penelitian menunjukkan tingkat penggunaan pestisida, kualitas saluran drainase, dan kepadatan tanaman jeruk berpengaruh positif terhadap intensitas serangan penyakit HLB, sedangkan tingkat keanekaragaman vegetasi dan pemberian pupuk kimia berpengaruh negatif terhadap intensitas serangan penyakit HLB. Pengendalian gulma, kualitas tanah, dan pemangkasan pemeliharaan tidak mempengaruhi intensitas HLB. Oleh karena itu, penanaman jeruk sebaiknya menerapkan sistem polikultur, menggunakan beragam varietas, dan jarak tanam tidak terlalu rapat. Pemberian hara yang dapat meningkatkan ketahanan tanaman jeruk terhadap serangan KLJ hendaknya ditingkatkan. Pengendalian hama dan penyakit tanaman disarankan dilakukan secara terpadu sehingga insektisida hanya digunakan ketika populasi hama mencapai ambang ekonomi.

Kata kunci: huanglongbing, jeruk, kutu loncat jeruk, praktik budidaya
Preliminary Study of Biohydrolysis Method of Durian Rind for Reducing Sugar Determination on Bioethanol Production
Authors: Husada Eko Darma , Sudiana I Made , Idris  , Indriyani Ni Luh Putu , Santoso Panca Jarot
Published: January 2022

Biohidrolisis merupakan proses hidrolisis atau delignifikasi biomasa lignoselulosa secara enzimatik dengan bantuan mikroorganisme. Koleksi isolat cendawan Trametes polyzona dan Aspergillus sp. memiliki potensi untuk digunakan pada proses biohidrolisis dalam produksi bioetanol. Penelitian ini dilakukan untuk mengetahui potensi isolat cendawan dalam metode biohidrolisis kulit buah durian untuk pembentukan gula reduksi dalam produksi bioetanol. Optimasi metode dilakukan dengan perlakuan biohidrolisis langsung dengan cendawan, kombinasi praperlakuan kimiawi (1% NaOH) dan biohidrolisis, kombinasi praperlakuan panas (microwave) dan biohidrolisis, serta delignifikasi alkali (5% NaOH) sebagai kontrol. Isolat cendawan Trametes polyzona secara umum memperlihatkan potensi terbaik pada perlakuan biohidrolisis langsung maupun kombinasi dengan praperlakuan kimia dan panas dibandingkan dengan isolat Aspergillus sp. Proses biohidrolisis Trametes polyzona dengan kombinasi praperlakuan panas selama 10 menit dengan inkubasi selama 7 hari menghasilkan 0.38% atau setara 3.83 g L-1 gula reduksi pada hidrolisat. Metode biohidrolisis langsung memberikan hasil 0.32% dan tidak berbeda nyata dengan kontrol (0.32%). Kedua modifikasi dalam proses hidrolisis biomasa lignoselulosa ini dapat digunakan sebagai metode alternatif produksi bioetanol di samping menggunakan senyawa kimia. Metode biohidrolisis dengan cendawan Trametes polyzona ini masih perlu dikaji lebih dalam terkait beberapa parameter lainnya yang berpengaruh agar diperoleh gula reduksi yang lebih baik dalam produksi bioetanol yang lebih efektif.

Kata kunci: delignifikasi, lignoselulosa, optimasi, Trametes polyzona
Strategy to Improve Temulawak (Curcuma xanthorrhiza) Yields and Quality under Teak Trees (Tectona grandis)
Authors: Nihayati Ellis , Rizqullah Dellia Rezha Bayu , Widaryanto Eko
Published: January 2022

Temulawak (Curcuma xanthorrhiza Roxb.) tumbuh di lahan tegalan yang memiliki banyak tanaman tahunan. Intensifikasi temulawak dapat menggunakan lahan jati sebagai alternatif dalam budidaya. Jarak tanam jati yang lebar dapat dimanfaatkan untuk menanam temulawak. Jarak tanam temulawak di bawah tegakan jati akan mempengaruhi pertumbuhan, kualitas dan kuantitas temulawak. Tujuan penelitian untuk mempelajari dan mendapatkan jarak tanam temulawak yang tepat pada perbedaan intensitas cahaya di bawah tegakan jati, agar mendapatkan pertumbuhan dan hasil yang maksimal. Penelitian ini dilaksanakan pada bulan Desember 2019 hingga Juni 2020 di kebun percobaan Universitas Brawijaya, Desa Jatikerto, Kabupaten Malang. Penelitian ini menggunakan rancangan split plot terdiri dari 2 taraf petak utama yaitu jati umur 17 dan 3 tahun, dengan anak petak jarak tanam temulawak 50 cm × 50 cm (J1), 50 cm × 40 cm (J2), 50 cm × 30 cm (J3), 50 cm × 20 cm (J4) diulang 4 kali. Dari hasil penelitian didapat bahwa berat rimpang temulawak per hektar yang optimum didapatkan pada temulawak yang ditanam di bawah tegakan jati umur 3 tahun dengan jarak tanam J1. Kualitas temulawak (tingkat aktivitas antioksidan) yang optimum didapatkan pada temulawak yang ditanam di bawah naungan jati umur 17 tahun dengan jarak tanam J4. Efisiensi penggunaan intensitas cahaya tertinggi terdapat pada temulawak yang ditanam pada tegakan jati 17 tahun.

Kata kunci:  antioksidan, intensitas cahaya, jarak tanam, kurkumin
Heat Unit Establishment as Harvest Criteria for Raja Bulu Banana
Authors: Widodo Winarso Drajad , Suketi Ketty , Fitriansyah Aidil
Published: January 2022

Penentuan waktu panen pisang Raja Bulu berdasarkan umur buah menyebabkan kualitas matang pascapanen (matang peram) yang tidak seragam antar tandan. Penentuan kriteria panen yang lebih tepat telah dilakukan dengan mengkonversi umur bunga antesis hingga panen ke akumulasi satuan panas dan mendapatkan akumulasi satuan panas optimum 1 400 oC hari pada pertanaman pisang Raja Bulu di dataran rendah (± 10 m dpl). Untuk memantapkan hasil tersebut telah dilakukan percobaan dengan rancangan kelompok lengkap teracak dari 3 waktu antesis berinterval satu minggu dengan 4 ulangan pada satuan panas 1 400 oC hari. Penandaan bunga antesis dilakukan di Kebun Parakansalak, PTPN VIII, Sukabumi (670 m dpl) pada Juli 2018. Observasi pascapanen dilakukan di Laboratorium Pascapanen Departemen Agronomi dan Hortikultura, Fakultas Pertanian, IPB. Akumulasi satuan panas 1 400  oC hari dicapai pada 88-91 hari setelah antesis. Tingkat matang peram (skala warna kulit 6) dicapai pada 11-14 hari setelah panen. Pada tingkat matang peram yang sama perbedaan waktu antesis tidak mempengaruhi kriteria matang peram buah pisang Raja Bulu yang meliputi umur simpan, susut bobot, laju respirasi, kekerasan buah, kandungan padatan terlarut total, kandungan asam tertitrasi total, dan kandungan vitamin C.

Kata kunci: antesis, matang peram, pascapanen, umur buah, umur simpan
Competency Analysis of Technological Pedagogical and Content Knowledge (TPACK) Biology Teachers
Authors: Nuruzzakiah Nuruzzakiah , Hasanuddin Hasanuddin , Artika Wiwit , Supriatno Supriatno , Rahmatan Hafnati
Published: January 2022

TPACK competence of teachers can improve the quality of learning in accordance with the demands and changes. Information on TPACK competencies is needed regarding the ability of teachers to know the professional development of teachers. This study aims to determine the competence criteria of biology teachers in Aceh Province in the components of CK, TK, PK, PCK, TCK, TPK, and TPACK, to find out the significant differences in TPACK competence of biology teachers based on teacher certification and teaching experience. This type of research is descriptive with a quantitative approach. The population in this study were all Biology teachers at state high schools in Aceh Province, namely civil servants, and non-civil servants, totaling 692 teachers. Sampling using a simple random sampling technique, obtained 232 respondents which is a total of 33.53% of the number of teachers in each district. The research instrument in the form of a questionnaire was adapted from Schmidt which consists of 38 items and has gone through face validity. Data analysis for the TPACK component is described according to the predicate criteria. The TPACK competence of biology teachers based on certification was analyzed by independent sample t-test, while the TPACK competencies of biology teachers based on teaching experience were analyzed using ANOVA. The results showed that the highest competency criteria for the TPACK component were PK with a score of 83.35% (very good), while the lowest was TK with a score of 76.84% (good). The results also showed that there was no significant difference (p> 0.05) in the TPACK competence of biology teachers based on certification and teaching experience
A casa corrente de 40 palmos da era liberal
Authors: Palazzo Pedro Paulo
Published: January 2022

O objeto de estudo em questão é um tipo de casa corrente com testada de aproximadamente 40 palmos (9 metros), com pequenas variações para mais ou para menos. Esse tipo é predominantemente atestado de
The Effect of a Training Program Based on the Health Belief Model on Elementary School Students’ Behaviors toward Preventing Playground Accidents: A Randomized Controlled Trial
Authors: KOCA Bennur , UYSAL TORAMAN Aynur
Published: January 2022

Purpose: The aim of the study is to investigate the effect of a training program developed based on the health belief model (HBM) on elementary school students’ behaviors towards the prevention of playground accidents.

Methods: This randomized controlled trial was carried out from September 2016 to June 2017. Elementary school students were randomly assigned into an intervention group (n = 62) and a control group (n = 62). Data were collected using a Sociodemographic characteristics questionnaire, Injury behavior checklist and Injury attitudes questionnaire (IAQ). HBM based playground accidents prevention training program applied as four sessions.

Results: Participation in the training program reduced the mean scores obtained from the fate subscale and injury risk scores of the intervention group, increased their mean scores for the vulnerability / severity and preventability subscales (p < 0.05). The mean scores of the intervention from Injury Behavior risk significantly decreased in comparison to the control group. The power of the present study was found to be high in all the subscales of the IAQ and injury risk assessment.

Conclusions: The training program based on the HBM effective as a scientific guide for helping students achieve behavioral changes by evaluating their attitudes.
Implementasi Model Pembelajaran Make A Match Berbasis Kearifan Lokal Untuk Meningkatkan Hasil Belajar Kognitif Siswa
Authors: Mayasari Jayanik , Murtono Murtono , Purbasari Imaniar
Published: January 2022

Education cannot be interpreted only as science implementation , but it is broader. By implementing proper education, learners will also understand local wisdom in their surrounding environment. This research takes local wisdom in Kudus as Hindu, Buddist, and Islam heritages. This research aim to find out the implementation of Make A Match learning model based on local wisdom toward the cognitive learning outcames of learners. This research applice classroom action method promoted in two cycles. Each cycle consisted of four stages: 1) planning; 2) acting; 3) observing; 4) monitoring. The finding showed that Make A match model based on local wisdom could improve cognitive leraners’ learning outcames. It could be seen from the reached indicators as follow. Cognitive learning outcame improvement improved with a pre-cycle score achievement of social suty lesson 52,63% it improved into 68,42% in cycle I then, it improved in cycle II 84,21%. Meanwhile, dealing with Indonesian language content, it improved from 68,15% in pre-cycle into 73,6% in cycle I then, in cycle II it improved into 89,47%

Keywords: Learning Outcomes, Make A Match, Local wisdom
Promosi Kesehatan Tentang Pencegahan Kanker Serviks Melalui Pemanfaatan Media Online
Authors: Damayanti Elisa
Published: January 2022

Kanker serviks adalah keganasan yang berasal dari leher rahim. Serviks adalah sepertiga bagian bawah rahim, berbentuk silindris, menonjol dan berhubungan dengan vagina melalui ostium uteri eksterna. Kanker serviks merupakan penyebab kematian keempat pada wanita di dunia. Tingginya angka kesakitan dan kematian wanita akibat kanker serviks di Indonesia juga menunjukkan rendahnya cakupan pemeriksaan Pap smear dan imunisasi HPV di Indonesia. Oleh karena itu, diperlukan suatu metode promosi kesehatan untuk mendorong perempuan aktif dalam mencegah kanker serviks. Kegiatan ini merupakan bentuk pengabdian masyarakat yang dilakukan dengan cara penyuluhan melalui metode ceramah dan diskusi dengan aplikasi zoom dan whatsapp. Promosi ini menyampaikan bahwa pencegahan kanker serviks dapat dilakukan sedini mungkin. Dibandingkan dengan metode penjangkauan langsung, penggunaan media sosial terbukti efektif dalam mencapai berbagai sasaran.
Investigating the impact of the COVID-19 pandemic on the psychological wellbeing and cognitive function of older adolescents
Authors: Attwood Meg , Jarrold Christopher
Published: January 2022

Background: The COVID-19 pandemic coincides with growing concern regarding the mental health of young people. Older adolescents have faced a particular set of pandemic-related challenges and demonstrate heightened vulnerability to affective disorders (particularly anxiety). Anxiety symptoms are associated with a range of cognitive difficulties. As such, older adolescents may be susceptible to pandemic-related declines in both wellbeing and cognitive function.Methods: At three timepoints, independent samples of young people aged 16-18 years (N = 607, 242, 618 respectively) completed an online survey. Data collection coincided with periods of lockdown (timepoints 1 and 3) and young people returning to school (timepoint 2). The survey assessed subjective impacts of the pandemic on overall wellbeing, anxiety and cognitive function.Results: Findings demonstrated the detrimental impact of the COVID-19 pandemic on older adolescents’ psychological wellbeing. Crucially, heightened anxiety was associated with self-identified cognitive difficulties, and this pattern of association was sustained in subsequent independent samples. Furthermore, the nature and extent of these difficulties were predictive of particular pandemic-related concerns in this age group.Conclusions: Older adolescents’ experiences of the pandemic are characterised by a clear pattern of association between anxiety and self-identified cognitive difficulties, which was sustained over time. Implications are discussed with reference to both future research and intervention. Abbreviations: Exploratory Factor Analysis (EFA); Confirmatory Factor Analysis (CFA)
Youth well-being predicts later academic success
Authors: Cardenas Diana
Published: January 2022

This article was submitted to Scientific Reports
Acute Respiratory Infections among Under-five Children Admitted in a Tertiary Hospital of Nepal: A Descriptive Cross-sectional Study
Authors: Bhurtel Radha , Prasad Pokhrel Ram , Kalakheti Balkrishna
Published: January 2022

Introduction: Acute respiratory infection is a major cause of mortality and morbidity among under-five children in developing countries. Children under five years of age are most vulnerable to various common but treatable conditions. The objective of this study is to find the prevalence of acute respiratory infections among under-five hospitalized children in a tertiary hospital of central Nepal.
Methods: This was a descriptive cross-sectional study conducted in a tertiary hospital of Nepal from January 2018 to December 2019. Ethical approval was taken from the Institutional review committee (Reference No: 2020-073). Convenience sampling technique was used. Data was entered in the Microsoft excel sheet, then extracted and analyzed in the Statistical package of Social Sciences version 20. Point estimate at 95% Confidence Interval was calculated along with frequency and percentage and presented in tables and figures.
Results: Among 660 children in our study, the prevalence of acute respiratory infection among hospitalized under-five children was 242 (36.67%) (32.99-40.34 at 95% Confidence Interval). Fever and cough were the most common presenting complaints among these children seen in 196 (81%) and 185 (76%) respectively. Stunting and wasting were seen in 37 (15%) and 26 (10.7%) of these children with acute respiratory infection while 6 (2.5%) of them were found overweight.
Conclusions: Acute respiratory infection is the most common reason for hospital admission among children under five years of age and the prevalence was high as compared to the standard study. The chief complaints are fever and cough.
Digital Eye Strain among Adults Presenting to Tertiary Care Hospital in the Era of COVID-19 Pandemic: A Descriptive Cross-sectional Study
Authors: Basnet Anjila , Bickram Pathak Samyam , Marasini Anurag , Pandit Rohit , Pradhan Amita
Published: January 2022

Introduction: The Novel Coronavirus disease 2019 pandemic has sent humanity indoors, replacing human contact with an electronic connection. The mandatory online classes and work from home policy to maintain the social distancing during the pandemic has forced the individual to spend most of the time in front of laptops or mobile screens. Digital eye strain is a group of vision-related symptoms that result from the continuous use of devices with digital displays, such as computers, tablets, and smartphones. The present study is done to find out the prevalence of digital eye strain among the adult population in a tertiary care hospital in the era of the COVID-19 pandemic.
Methods: This descriptive cross-sectional study was done from January 2021 to July 2021 in a tertiary care hospital of Nepal after receiving ethical approval from the Institutional Review Committee (Registration number: 077/78/30). Convenience sampling was done. The sample size calculated in our study was 322. Data collection and entry were done in Microsoft Excel, point estimate at 95% Confidence Interval was calculated along with frequency and proportion for binary data.
Results: The prevalence of digital eye strain was 300 (94.3%) (91.8-96.8 at 95% Confidence Interval) among 318 respondents. Eye strain (irritation, heaviness) was the most common digital eye strain symptom 199 (62.6%) followed by the tiredness of eyes 162 (50.9%).
Conclusions: The present study concluded that the prevalence of digital eye strain in the era of COVID-19 is high as compared to other studies conducted among adults.
END-OF-LIFE AND DYING IN PERSONS WITH INTELLECTUAL DISABILITIES: IMPLICATIONS FOR COUNSELLING, EDUCATION AND SUPPORT
Authors: Chrastina Jan
Published: January 2022

People with intellectual disabilities (ID) generally have a shorter lifespan, but the duration of quality life is becoming more and more extended. That is why supportive, holistically oriented palliative care is also gaining in importance in the period when a client with ID is dying or is in the end-of-life stage of life. Although recent years have seen a steady increase in published surveillance and theoretical studies, empirical data about the needs of palliative care for people with ID are still rather rare. Most of the staff working in the health, social, and other service sectors are confronted with the difficulty of caring for, the approach to be taken to, and communication with people with ID. These people need adequate support in the topics of death, dying, accompanying, and mourning. People engaged in the helping professions should not deliberately avoid these topics, but, on the contrary, become initiators of open, clear, and objective communication heading towards the greatest possible extent of help and support to people with ID. At the same time, it is a huge demand for education and a great challenge for the pre-graduate and professional training of helping professions.
ANTI-TUMOR NECROSIS FACTOR ALPHA BIOLOGIC THERAPY DOSE ADJUSTMENT NECESSITY IN PATIENTS WITH RHEUMATOID ARTHRITIS. A CASE PRESENTATION
Authors: Muflic Lucian , Ion Ileana
Published: January 2022

Rheumatoid arthritis is an inflammatory disease characterized by chronic joint erosive processes, affecting approximately 1% of the population. [1] The pathogenic mechanisms processes involve the activation of pro-inflammatory cytokines, including TNF alpha. [2] The purpose of this case presentation is to elucidate a possible correlation between the high level of blood TNF alpha and the apparent lack of response to biologic therapy directed against this molecule. A female patient, aged 55 years, diagnosed with rheumatoid arthritis in 2006, presents an increased inflammatory biological syndrome. The patient was being treated biologically (adalimumab, and two years of etanercept previously. One year ago, the patient presents the elevation values of the blood tests commonly used to monitor the status of patients with inflammatory rheumatoid arthritis up to 2.5-3 x than normal values. Initially, this increase is considered to be due to a respiratory seasonal condition. We continued monitoring the status, after subsequent remission of these respiratory disorders, and we observed the persistence of those elevated test, this time without an obvious possible causing comorbidity. We decided to evaluate the current patient status and we obtained the following information: Biological syndrome currently moderately exceeds the maximum normal values. ESR was 47 mm/h and CRP 1.5 than the normal value. TNF alpha value determined by immunochemical methods with detection by chemiluminescence (CLIA) is 67.2 pg / mL Biological confirmation by determining serum TNF alpha and increased observation that the current level may be one explanation for the possible reactivation of the disease prompted us to continue the study in patients receiving anti-TNF alpha biologic. This study is ongoing. We can imagine this correlation between the level of TNF alpha and the degree of disease activity at least in the case of a group of patients treated with biological drugs. If this could be demonstrated, then perhaps we can expect a change in the curative approach of these patients, meaning that dose adjustment can be considered depending on the level of TNF alpha, and why not, depending on other cytokines that may be included in future studies.
THE NEW ITALIAN GOVERNMENT. EUROSCEPTICS TRIUMPH
Authors: Danilov Valery
Published: January 2022

sufficient amount of foreign research literature has been devoted to the study of such a political phenomenon as euroscepticism; recently, interest in it among the Russian scientific community has intensified due to the strengthening of its positions in the EU countries. Italy after the elections of March 4, 2018 turned into a “show-window” of the success of euroscepticism and populism. The purpose of this article is to determine the sustainability of the new government. The author identifies the causes of the weakening of the position of the Democratic Party in Italy, the coming to power of radical parties, whose leadership until recently was not taken seriously among the EU political establishment. The paper also analyzes the main concepts of the program called “Contract for the government of change” and the prospects for its implementation. To solve these tasks, a historical and chronological method was used, which allowed to track the stages of weakening popular support for traditional parties and the growing popularity of euro skeptics. The research was also used the theoretical research method as an analysis to determine the future prospects of the government in domestic and foreign policy. The author comes to the conclusion that in the coming years Italy will become the leader of all eurosceptic forces with the prospect of creating and heading a similar faction in the European Parliament in May 2019. The conclusion is also formed that the Government’s attitude to cancel anti-Russian sanctions should not be considered too optimistic. Analyzing the declining rhetoric of the Italian leadership on this issue, the author assumes that the Russian issue is just a bargaining chip in knocking out EU preferences on fiscal and migration issues
TEACHING CULTURE: NON-VERBAL INTERCULTURAL BLUNDERS THROUGH EXPAT EYES
Authors: Fărcașiu Marcela
Published: January 2022

The 21st century is witnessing a growing movement of people from one corner of the world to another, either for business or personal reasons, like never before. These people will be bringing with them their own differences, values, beliefs, and communication styles. Cultures will clash at the workplace, at a party, in the supermarket, in the subway, when dealing with the authorities, and the list can go on. That is why, this paper aims at providing students (i.e. future employees or managers, who will undoubtedly come into contact with different cultures in their future careers) with notions related to intercultural communication, mainly non-verbal communication. The paper also posits that one way of acquiring the intercultural communication competence in the classroom is by providing real-life examples of what such communication means, i.e. through accounts and stories told by expats, who are people who travel and decide to relocate to another country (embracing or not the new culture) mainly for business-related reasons.
DIGITAL TOURISM MUSEUM NASIONAL INDONESIA MELALUI VIRTUAL TOUR DI MASA PANDEMI COVID-19
Authors: Bramantyo Bagus Dwi , Ismail Pitoyo
Published: January 2022

The Covid-19 pandemic that has hit Indonesia has succeeded in forming new adaptations of people's habits, one of which is social distancing. The government has appealed to the public to carry out activities from home. Museum Nasional Indonesia as a tourist destination was also affected because it had to close direct visit services. However, Museum Nasional Indonesia provides innovation by utilizing digital tourism, namely through virtual museum tours. Later, the public can visit the Museum Nasional Indonesia virtually. The purpose of this study is to find out Digital Tourism at Museum Nasional Indonesia through Virtual Tours during the Covid-19 Pandemic Period. This research uses a case study method with a qualitative approach and constructivism paradigm. This research uses diffusion of innovation theory from Everett M. Rogers, which explains how to introduce and adapt an innovation by a community or group to society. The results of this study indicate that virtual museum tours are a way for Museum Nasional Indonesia to continue to reach and provide museum services to the public, of course, so that they remain interested and can visit museums during the Covid-19 pandemic.
Meningkatkan Motorik Anak Melalui Kegiatan Wall Climbing di Al-Kindi Preschool Pangkalpinang
Authors: Qomariah Nurul , Haria Haria
Published: January 2022

Early in life, there are several aspects of development that should be stimulated. One of which is that of motor development. The development of a child's motor is vital to note because it affects and supports other developments. To enhance child growth, at al-kindi preschool pangkalpinang is done through wall climbing activity. The purpose of this activity is to train a child's muscles and to exercise a child's agility in climbing, which will support the other child's motor activities in various activities. It is a descriptive qualitative study. The data gathered is obtained through three data-collection techniques interview, observation, and documentation. The results of the study indicate that children's motor development has been enhanced following the limbing of wall activity. This is judged by the increased ability of the child in coordinating hands, feet and eyes when climbing, the child is able to balance the body, be able to hold strong rock points and be able to do wall climbing activities.
Students' Interest in Online Learning in Higher Education During the Covid-19 Pandemic
Authors: Setiana Dafid Slamet , Kusumaningrum Betty , Purwoko Riawan Yudi
Published: January 2022

The Covid-19 pandemic in various countries has had an impact on changes in the education system. The implementation of learning has changed from classroom to online learning. The implementation of online learning certainly affects the learning interest of students. This study was conducted to determine student interest in learning during the Covid-19 pandemic. The subjects in this study were students of the Mathematics Education Study Program at a private university in Yogyakarta as many as 72 students who were selected using the simple random sampling method. The data in this study were collected through Google Form questionnaire. The questionnaire contains 15 items of multiple choice and each item contains “why” question to obtain in-depth data about the answers given by respondents. The data of questionnaire analyzed descriptive qualitatively. The results indicated that students' interest in online learning needed to be insreased. It can be seen from students’ responses to the questionnaire that only 15.3% of students gave a positive response to online learning and 32% to online exams. In general, students prefer classroom learning compared to online learning in terms of student attendance, interaction of lecturer-students, and technical in learning. Online learning tends to reduce student interest in attending lectures. Limitations of internet access, lecturer delivery methods and the amount of workloads are factors causing the decline in student interest. By knowing students' interest in learning and the factors that cause low students’ interest in learning, lecturers can improve the quality of learning to increase student interest in online learning.
Timothy Morton (2021). All Art Is Ecological
Authors: Hart Heidi
Published: January 2022

Book review: Morton, T. (2021). All Art Is Ecological. Penguin Random House. ISBN: 978-0-1419-9700-1
Recurrence of Ischemic Stroke Patients with Common Risk Factors
Authors: Kanti Dey Subash , Bakshi Lipy , Ahmed Anis , Md Shahidullah - , Habib Ahsan , Chowdhury Ashish , Islam Md Rafiqul
Published: January 2022

Background: Mortality and morbidity due to recurrent ischemic stroke is gradually increasing in Bangladesh due to gradual increase of life expectancy. Previously many studies were done to identify the risk factors of ischemic stroke. But there was scanty data about risk factors of recurrent ischemic stroke. So,it is time demanding to find out those risk factors for ischemic stroke recurrence to reduce the mortality and morbidity from recurrent ischemic stroke. The objective of the study was to determine the frequency of recurrence ischemic stroke events within one year of follow up after discharge from hospital admitted due to first ever stroke.

Methods: This is a prospective cohort study. This study was conducted on 150 patients admitted in Neurology ward of BSMMU, presenting with first ever ischemic stroke. Patients mRS were evaluated three monthly interval for one year. Sudden onset mRS deterioration than previous one during this one year period was categorized as recurrence.

Results: Stroke recurrence was found in 30 patients including 8 patients who died due to stroke recurrence. the most frequent age group was > 75 years representing 44.4% who developed recurrence of stroke The cumulative risk of recurrence rate was 14.7% at three months, 15.3% at six months, 17.3% at ninth months,20% at one year. Old age, Male sex, Hypertension, DM and dyslipidemia were the most common risk factors among recurrent stroke patients.

Conclusion: It was concluded that in hospital admitted patients of first ever stroke, recurrence events was more in patients of older male patients with multiple risk factors.First three months was the worst period for recurrence after index stroke.

Bangladesh Journal of Neuroscience 2019; Vol. 35 (1): 33-38
Prognostic significance of Intracerebral Hemorrhage Score in predicting 30-day mortality in Chittagong Medical College Hospital
Authors: Emran Md Shawkat , Md Hassanuzzaman - , Majumder Shiuly , Islam Md Rafiqul , Kabir Md Humayun , Hoque Sikder Abu Bakar Muhammad Nizamul , Majumder Pijush , Uddin Syed Arif , Md Rubel - , Rahman Md Wahidur , Chowdhury Mohammad AnwarulAzim , Khan Md Ashrafuzzaman , Sarker Md Humayun Kabir , Chowdhury Ashish
Published: January 2022

Background:Prognosticating the outcome of Intracerebral Hemorrhage (ICH) at the time of admission is important to customize treatment in a cost-effective manner in such cases. ICH sore is a widely used prognosticating tool but yet not evaluated in our setting. This study was aimed to assess the prognostic factors influencing outcome and validating the ICH score for prediction of 30-day mortalityin hospitalized patients with ICH.

Materials and methods:This prospective observational study was conducted in Chittagong Medical College Hospital, Bangladesh among 105 consecutively admitted patients aged 18 years and above with a computed tomography evidence of spontaneous ICH. ICH score was calculated soon after confirmation of diagnosis. Primary outcome measure was 30-day mortality after admission. Modified Rankin Scale (mRS) was used to assess outcome at discharge and at 30-day follow up.

Results:A total of 104 patients were analyzed. Mean age of this cohort was 59.30±19.91 years. At 30 days all 27 patients with an ICH score of 0 survived, whereas those having scores of 1, 2, 3, and 4 had 5.9%, 33.3%, 46.2% and 88.9% mortality, respectively. ICH score was good for discriminating 30-day mortality with having an area under the ROC curve of 0.886 (95% CI:0.816-0.956; p<0.001]. For patients scoring above 2, the rate of poor functional outcome (mRS score e”4) approaches 100%. On the other hand, 18.5% of patients with score of 0 and 64.7% of patients with a score of 1 are not functionally independent after 30 days.

Conclusion:In conclusion, the present study has demonstrated that the ICH score is a strong prognostic indicator of ICH outcomes (30-day mortality and 30- day functional outcome) among hospitalized patients in Bangladesh.

Bangladesh Journal of Neuroscience 2019; Vol. 35 (2): 78-85
A Case Report of Reverse Split-hand Syndrome: An Overlooked Clinical Sign of Hirayama Disease
Authors: Saha Sujan , Rahman Hasan Zahidur , Islam Md Rafiqul , Alam SK Mahbub , Al Muzahid Md Abdullah , Chowdhury Ashish , Hasan Mehedi , Roy Uttam , Kabir Md Suman
Published: January 2022

Hirayama disease (HD) is considered to be a relatively benign, slowly progressive and less disabling rare neurological disorder where flexion induced compressive ischemic lower cervical myelopathy causes selective anterior horn cell injury resulting weakness and atrophy of distal upper limb without any pyramidal, spinothalamic and posterior column disturbance. Herein, we report a young male with clinical and imaging features suggestive of Hirayama disease presented with dissociated hand muscle atrophy (hypothenar more affected than thenar) in both hands. This less recognized finding was previously termed as reverse split-hand syndrome just opposite to split-hand syndrome found in amyotrophic lateral sclerosis. We also observe electrophysiological correlation of reverse split-hand syndrome in HD.

Bangladesh Journal of Neuroscience 2019; Vol. 35 (2): 110-114