bluuebunny/crossref_metadata_2025_split huggingface dataset:
CEGAH KEKERASAN DENGAN SOP PENANGANAN PELANGGARAN SISWA DI SEKOLAH BINAAN
Authors: Rato Petrus EY Ngilo 
Published: April 2023

Sekolah sebagai tempat belajar seharusnya menjadi tempat yang nyaman bagi siswa. Pada kenyataannya sekolah belum menjadi tempat yang nyaman bagi siswa karena masih terdapat tindak kekerasan terhadap siswa yang dilakukan oleh guru. Guru melakukan tindak kekerasan terhadap siswa karena mereka tidak memiliki panduan atau pedoman penanganan pelanggaran siswa sehingga guru menyikapi pelanggaran siswa seturut perspektifnya masing-masing.Untuk mencegah terjadinya tindak kekerasan terhadap siswa, dilakukan pelatihan menyusun SOP (Standar Opoerasional Prosedur) penanganan pelanggaran siswa. Dengan pelatihan tersebut sekolah memilik dokumen SOP penanganan pelanggaran siswa untuk dijadikan pedoman bagi guru dalam mengangani kasus-kasus pelanggaran siswa. Setelah sekolah memiliki dokumen SOP penanganan pelanggaran siswa, tindak kekerasan yang sering dilakukan guru terjhadap siswa dapat dicegah. Dengan tercegahnya tindak kekerasan terhadap siswa, sekolah menjadi lebih mudah untuk mewujudkan suasana dan iklim belajar yang nyaman dan kondusif. Sehingga diharapkan agar pematuhan terhadap SOP penanganan pelanggaran siswa diberlakukan secara konsisten.
PENINGKATAN PEMAHAMAN KONSEP PECAHAN MELALUI PENERAPAN PENDEKATAN KONTEKSTUAL PADA SISWA KELAS IIA SD WIDIATMIKA
Authors: Tarigan Jesika Nopiaty 
Published: April 2023

Penelitian ini bertujuan untuk meningkatkan pemahaman konsep pecahan melalui penerapan pendekatan kontekstual pada siswa kelas iia SD widiatmika tahun pelajaran 2021/2022. Penelitian ini menggunakan penelitian tindakan kelas. Subjek Penelitian ini adalah siswa kelas 2A di SD Widiatmika, yang berjumlah 19 siswa yang terdiri dari 10 orang siswa laki-laki dan 9 orang siswa perempuan pada mata pelajaran tematik muatan matematika. Penelitian ini dilaksanakan dalam 2 siklusi. Masing-masing siklus di lakukan 4 tahap yaitu: Tahap perencanaan tindakan, Tahap pelaksanaan tindakan, Tahap observasi dan evaluasi dan Tahap Refleksi. Dari hasil tes dan hasil observasi yang telah dilakukan, yaitu observasi aktivitas siswa, proses pembelajaran mengalami peningkatan dari siklus I sampai siklus II, pada siklus II telah tercapainya ketuntasan belajar klasikal dan proses pembelajaran sudah sangat baik. Dengan adanya peningkatan hasil belajar dan peningkatan keaktifan siswa pada setiap siklus, maka dapat dinyatakan bahwa penerapan pembelajaran contextual teching and learning ini efektif untuk digunakan sebagai salah satu model pembelajaran Matematika
PENERAPAN GOOGLE CLASSROOM DENGAN MODEL PEMBELAJARAN FLIPPED CLASSROOM TERHADAP HASIL BELAJAR SISWA DI SMK UNITOMO SURABAYA
Authors: Chusnuraafi Happy Indra , Ekohariadi  , Joko  , Marniati  
Published: April 2023

Abstract
Research that uses a reverse learning model (Flipped Classroom) is an implementation of Blended Learning. This study aims to find out how to apply Google Classroom with the Flipped Classroom learning model in schools on student motivation, student activities, and student learning styles. This study started from distributing questionnaires, collecting data, analyzing data and drawing conclusions. This study used a quantitative approach with an experimental research model with a student population at SMK UNITOMO Surabaya. Data analysis using multiple linear regression using SPSS. Based on the test results, the data shows the F value of 3.164 which is greater than the F table with a significant value of 0.039. So, it can be concluded that from student motivation, student activities, and student learning styles have a significant impact on student learning outcomes using the Flipped Classroom learning model using the Google Classroom application at SMK UNITOMO Surabaya..

Abstrak
Penelitian yang menggunakan model pembelajaran terbalik (Flipped Classrom) yaitu merupakan implementasi dari pembelajaran Blanded Learning. Penelitian ini bertujuan untuk mengetahui bagaimana menerapkan Google Classroom dengan model pembelajaran Flipped Classroom di sekolah terhadap motivasi siswa, aktivitas siswa, dan gaya belajar siswa dengan begitu penelitian ini diharapkan siswa akan mendapatkan hasil belajar yang memuaskan. Penelitian ini dimulai dari menyebarkan angket, pengumpulan data, analisis data serta mengambil kesimpulan Penelitian ini menggunakan pendekatan kuantitatif dengan model penelitian eksperimen dengan populasi siswa di SMK UNITOMO Surabaya. Analisis data menggunakan regresi linier berganda dengan mengunakan SPSS. Berdasarkan hasil pengujian, data menunjukan nilai F sebesar 3,164 lebih besar dari F tabel dengan nilai signifikan sebesar 0,039. Jadi, dapat disimpulkan bahwa dari motivasi siswa, aktivitas siswa, dan gaya belajar siswa bersignifikan terhadap hasil belajar siswa dengan menggunakan model pembelajaran Flipped Classroom dengan menggunakan aplikasi Google Classroom di SMK UNITOMO Surabaya.
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PENINGKATAN HASIL BELAJAR MATA PELAJARAN PENDIDIKAN PANCASILA DAN KEWARGANEGARAAN MELALUI METODE DEMONSTRASI PADA SISWA KELAS XI DKV 2 SMK NEGERI 1 SUKASADA SEMESTER GANJIL TAHUN PELAJARAN 2021/2022
Authors: Sekarini Ni Nengah 
Published: April 2023

TPenelitian ini bertujuan untuk mengetahui penerapan metode demonstrasi untuk meningkatkan hasil belajar siswa dalam mata pelajaran Pendidikan Pancasila dan Kewarganegaraan siswa kelas XI DKV 2 semester ganjil tahun pelajaran 2021/2022. Rancangan penelitian yang digunakan dalam penelitian ini adalah penelitian tindakan kelas (PTK). Berdasarkan hasil penelitian yang telah dilakukan dapat disimpulkan bahwa penerapan metode demonstrasi dapat meningkatkan hasil belajar siswa Kelas XI DKV 2 SMKN 1 Sukasada pada mata pelajaran PPKn semester ganjil tahun pelajaran 2021/2022. Adapun hasil belajar siswa kelas XI DKV 2 pada mata pelajaran PPKN materi pokok dinamika demokrasi dalam kehidupan bermasyarakat berbangsa dan bernegara di depan kelas memiliki peningkatan dalam setiap siklusnya.
PENGEMBANGAN BAHAN AJAR IPA BERBASIS KONTEKSTUAL MATERI TEKANAN ZAT DAN PENERAPANNYA DALAM KEHIDUPAN SEHARI-HARI BAGI SISWA SMP KELAS VIII
Authors: Nggia Saferin Goldiana , Kua Maria Yuliana , Laba Laksana Dek Ngurah 
Published: April 2023

Penelitian ini dilatarbelakangi oleh permasalahan penggunaan bahan ajar IPA hasil terbitan suatu penerbit tertentu yang jika dianalisis, isi materi yang termuat dalam bahan ajar yang digunakan belum terpadu dan contoh-contoh yang diangkat masih belum menampilkan masalah dunia nyata siswa atau kontekstual. Penelitian ini bertujuan untuk menghasilkan bahan ajar IPA berbasis pendekatan kontekstual yang valid dan praktis untuk diterapkan dalam proses pembelajaran IPA di dalam kelas.Jenis penelitian ini adalah penelitian pengembangan yang dilakukan di SMP Negeri 2 Boawae dengan jumlah subjek uji coba sebanyak 5 orang dan 1 orang guru. Metode pengumpulan data yang digunakan berupa lembar validasi dan angket respon untuk siswa dan guru. Data kemudian dianalis secara deskriptif kualitatif dan deskriptif kuantitatif. Dari hasil temuan pengembangan bahan ajar siswa berbasisi pendekatan kontekstual, diperoleh bahan ajar yang valid dan praktis, Berdasarkan hasil penelitiaan bahan ajar IPA oleh keempat validator yang diberikan dalam bentuk instrumen penilaian berada pada kategori baik. Hasil penilaian kategori masing-masing validator antara lain:1) skor rata-rata penilaian dari validator ahli materi 3,5 dengan kriteria layak untuk digunakan, 2) skor rata-rata dari validator ahli bahasa 3,6 dengan kriteria layak digunakan, 3) skor rata-rata validator ahli media 3,6 dengan kriteria layak digunakan, 4) skor rata-rata validator ahli desain pembelajaran 3,5 dengan kriteria layak untuk digunakan. Dari skor rata-rata tersebut diperoleh kevalidan dan bahan ajar sebesar 3,54 dan berkriteria sangat praktis dan layak untuk digunakan.
PENERAPAN PERMAINAN TRADISIONAL SANGGU ALU UNTUK MENINGKATKAN AKTIVITAS BELAJAR SISWA PADA MATERI KEBUGARAN JASMANI DI SMPK ROSA MISTIKA WAERAN KELAS VII
Authors: Endang Oktaviani , Natal Yanuarius Ricardus , Bile Robertus Lili 
Published: April 2023

penelitian ini bertujuan untuk mengetahui peningkatan aktivitas belajar siswa melalui penerapan permainan tradisional Sanggu Alu pada siswa kelas VII di SMPK. Subjek dalam penelitian ini adalah siswa siswi kelas VII SMPK Rosa Mistika Waerana dengan jumlah siswa 31 orang, yang terdiri dari 5 orang siswa dan 26 orang siswi. Rata – rata aktivitas belajar siswa siklus I mencapai 14,6 pada kategori tidak aktif meningkat pada siklus II mencapai rata – rata 28,2 berada pada kategori sangat aktif. Presentase peningkatan aktivitas belajar siswa pada siklus I mencapai 46% meningkat pada siklus II mencapai 94%. Peningkatan aktivitas belajar siklus I ke siklus II mencapai 45% dimana pada siklus I 46% meningkat menjadi 94% di siklus II. Sehingga dapat disimpulkan bahwa Penerapan permainan tradisional sanggu alu layak digunakan sebagai permainan yang dapat meningkatkan aktivitas belajar pada siswa kelas VII Di SMPK Rosa Mistika Waerana.
EFEKTIVITAS MODEL LATIHAN SPAT-DESAIN BOLA VOLI UNTUK MENINGKATKAN AKTIVITAS BELAJAR SISWA SMP DALAM PEMBELAJARAN PJOK MATERI PASING ATAS BOLA VOLI
Authors: Tawa Elvidiana , Tapo Yohanes Bayo Ola , Wani Bernabas 
Published: April 2023

Penelitian ini bertujuan untuk mengetahui Efektivitas Model Latihan SPAT-Desain Bola Voli Untuk Meningkatkan Aktifitas Belajar Siswa Dalam Pembelajaran PJOK Materi Pasing Atas Bola Voli Pada Siswa Kelas VIII SMP Negeri I Aesesa. Penelitian ini dilakukan di SMP Negeri I Aesesa kecamatan Aesesa kabupaten Nagekeo.Subjek dalam penelitian adalah 30 orang siswa SMP Negeri I Aesesa kelas VIII. Jenis penelitian ini adalah efekitivitas Model Latiahan SPAT Desain Bola Voli Untuk Meningkatkan Aktifitas Belajar Siswa Dalam Pembelajaran PJOK Materi Pasing Atas Bola Voli Pada Siswa Kelas VIII SMP Negeri I Aesesa. Jenis penelitian ini adalah penelitian eksperimen dengan desain penelitian one group pre-test and post-test desigen Metode pengumpulan data yang digunakan dalam penelitian ini adalah metode tes dan observasi. Metode analisis daya dalam penelitian ini adalah metode analisis data kuantitatif.Hasil analisis paired sample t –test di ketahui bahwa kedua sample yang diteliti yakni nilai prettest dan nilai posttest diperoleh rata-rata pretest sebessar 12,37, sedangkan untuk nilai posttest diperoleh rata-rata sebesar 28.17, sehingga nilai rata-rata pretest 12.37 < Postest 28.17, dengan selisi antara rata-rata postest dan rata-rata prettest adalah 15,79. Uji paired sample t-test di atas diketahui bahwa nilai sig (2tailed) adalah sebesar 0.000 < 0.05, dengan nilai t-hitung sebesar 25,780 dan t-tabel =1,701, sehingga Ho di tolak dan Ha di terima. Dengan demikian maka dapat disimpulkan bahwa model Latihan SPAT-Desain bola voli efektif terhadap peningkatan aktivitas belajar siswa dalam pembelajaran PJOK materi passing atas bola voli siswa kelas VIII SMP Negeri 1 Aesesa.
Kanserli Hastalara Bakım Verenlerin Manevi İyilik Durumları ve Yaşam Kalitelerinin Belirlenmesi
Authors: SEMERCİ Remziye , UYSAL Neşe , ŞAHİN Eda , TAYAZ Esra , ÖZKAN Sevil , ÖZDEMİR KOYU Hazal , AKGÜN KOSTAK Melahat , SOYER Gözde , PÖRÜCÜ Canan 
Published: April 2023

Amaç: Bu çalışma, kanser hastalarına bakım veren bireylerin manevi iyilik durumları ve yaşam kalitelerini belirlemek amacıyla yapılmıştır.
Yöntem: Tanımlayıcı türde yürütülen bu çalışma, Kasım 2020-Nisan 2021 tarihleri arasında Türkiye’de kanser tedavisi alan hastalara bakım veren 104 birey ile online olarak yürütülmüştür. Çalışma verileri Tanıtıcı Bilgi Formu, Kanserli Hastalara Bakım Verenlerde Yaşam Kalitesi Ölçeği ve Üç Faktörlü Spiritüel İyi Oluş Ölçeği kullanılarak toplanmıştır.
Bulgular: Çalışmamıza katılan bakım verenlerin %84.62’sinin kadın olduğu, %73.08’inin manevi bakıma ihtiyaç duyduğu ve %86.54’ünün manevi bakım desteği almadığı belirlenmiştir. Kanserli Hastalara Bakım Verenlerde Yaşam Kalitesi Ölçeği toplam puan ortalamasının 63.89±22.24, Üç Faktörlü Spiritüel İyi Oluş Ölçeği toplam puan ortalamasının 119.77±22.91 olduğu saptanmıştır. Bakım verenlerde yaşam kalitesi ölçeği toplam puanlarının cinsiyet, çalışma durumu, eğitim düzeyi ve manevi bakıma ihtiyaç duyma durumuna göre anlamlı farklılık gösterdiği saptanmıştır (p
Gebelerin Sağlık Hizmeti Alma Durumları ve İlişkili Faktörlerin Belirlenmesi
Authors: TANDOĞAN Özden , DİŞLİ ÇETİNÇAY Duygu , YUVARLAN Esra , MECDİ KAYDIRAK Meltem 
Published: April 2023

Amaç: Gebelikte sağlık hizmeti alınması ve sağlık hizmetine erişimin sağlanması anne ve bebek için kritik bir öneme sahiptir. Birçok faktör sağlık hizmetlerine ulaşımı ve sağlık hizmetlerinden yararlanmayı etkilemektedir. Bu araştırma gebelerin sağlık bakım hizmeti almasını etkileyen faktörlerin belirlenmesi amacıyla tanımlayıcı-ilişki arayıcı desene sahip olarak planladı.
Gereç ve Yöntem: Araştırma İstanbul’daki bir kadın doğum ve çocuk hastalıkları hastanesinin gebe polikliniğinde 05/06/2021- 05/09/2021 tarihleri arasında 322 gebe ile gerçekleştirildi. Olasılıksız örnekleme yöntemi kullanıldı. Veriler Tanıtıcı Bilgi Formu ve Gebelerin Hastanelerden Sağlık Hizmeti Almasını Etkileyen Faktörler Ölçeği kullanılarak toplandı. Verilerin analizinde, SPSS 21.0 istatistik paket programı kullanıldı.
Bulgular: Gebelerin Sağlık Hizmeti Almasını Etkileyen Faktörler Ölçeği alt boyut puanları; hizmet kalitesi 24.55±3.92, tutum 33.05±8.17, ekonomi 9.43±2.08, ailesel 19.94±3.12, bireysel 26.57±4.51 ve mahremiyet 9.12±2.70 olarak saptandı. Bu alt boyutlardan mahremiyet alt boyutu hariç diğerlerinin, ölçek ortanca değerinden daha yüksek olduğu belirlendi. Ülkemizin batısında yaşayan gebelerin hizmet kalitesi (KW:13.829, p=0.008), tutum (KW:13.357, p=0.010), ekonomi (KW:10.163, p=0.038) ve bireysel (KW:13.292, p=0.010) boyutlarında istatistiksel olarak anlamlı oranda yüksek olduğu saptandı.
Sonuç: Gebelerin sağlık hizmeti almasında hizmet kalitesi, tutum, ekonomi ve bireysel faktörlerin olumlu etki yaptığı belirlendi. Türkiye’nin batısında yaşayan gebelerin sağlık hizmeti alımının daha olumlu olduğu bulundu.
A comparative analysis review of digital transformation stage in developing countries
Authors: Haryanti Tining , Rakhmawati Nur Aini , Subriadi Apol Pribadi 
Published: April 2023

Purpose: Digital Transformation (DX) is a phenomenon that must be addressed properly so that its benefits can be optimized. Slow adaptation to DT leads to the destruction of the industry and threatens its sustainability. This article reveals significant insights in describing the trend of DX stages, especially in developing countries.Design/methodology/approach: Based on a comparative analysis of research related to DX in developing countries in reputable journals, more than 900 articles that reviewed DX. By conducting a strict and thorough screening of DX stages in developing countries, especially on the topic of Information Systems, 60 relevant articles were obtained.Findings: DX barriers in phase 1 comprise the fact that access and infrastructure are starting to be bridged, but not completely. DX barriers in developed countries have shifted predominantly from stage 1 to stage 2. More than 80 of the revealed indicators contribute to the success of DX in developing countries. In addition, this article also discusses various future research opportunities and essential indicators that intersect in stages 1, 2, and 3.Originality/value: DX barriers in developed countries have shifted predominantly from stage 1 to stage 2. More than 80 of the revealed indicators contribute to the success of DX in developing countries.
Precision of Structures Used to Estimate Age and Growth of Apache Trout from Arizona
Authors: Quist Michael C. , Ulaski Marta E. , Manuell Kristy M. , Jackson Zachary J. , Gatewood Tim 
Published: April 2023

Abstract
Obtaining reliable information on the age structure of fish populations is important for making conservation and management decisions. We sought to evaluate precision and reader confidence in age estimates from scales (two body locations), sectioned fin rays (pectoral, pelvic, anal), and sectioned sagittal otoliths from Apache Trout Oncorhynchus apache (n = 78 fish) sampled from the East Fork White River, Arizona, in 2017. Two experienced readers without prior knowledge of fish length aged structures independently. Each reader provided a confidence rating of 0 (no confidence) to 3 (completely confident) as a measure of readability. Both readers were unable to estimate age from scales collected from the area just posterior to the insertion of the pectoral fin. We used scales removed from an area just dorsal to the lateral line and posterior to the dorsal fin in all analyses. Percentage of exact agreement between readers was highest for scales and otoliths (&gt;72.0%) and lowest for fin rays (31.8–58.1%). Average confidence rating was highest for sectioned otoliths (mean ± SE, 2.1 ± 0.07), and lowest for anal fin rays (0.3 ± 0.06) and scales (0.7 ± 0.05). We compared consensus ages from otoliths to the other structures. Percentage of exact agreement with otolith age was low and varied from 21.6 to 35.7% among structures. Similarly, percentage of agreement within 1 y was also low among structures (58.0–70.2%). Scales consistently underestimated age of age-4 and older fish (based on otolith age), whereas fin rays tended to overestimate age of younger fish and underestimate age of older Apache Trout. Although sectioned otoliths require lethal sampling, they produced the most precise age estimates for Apache Trout with the highest reader confidence. Dorsal scales may be a suitable nonlethal alternative to otoliths if ages for only young fish (age 3 and younger) meet study objectives.
Composition operators on weighted analytic spaces
Authors: Bourass Marouane , Marrhich Ibrahim , Mkadmi Fouzia 
Published: April 2023

AbstractWe characterize the membership in the Schatten ideals
$\mathcal {S}_p$
,
$0<p<\infty $
, of composition operators acting on weighted Dirichlet spaces. Our results concern a large class of weights. In particular, we examine the case of perturbed superharmonic weights. Characterization of composition operators acting on weighted Bergman spaces to be in
$\mathcal {S}_p$
is also given.
Feasibility of Training Community Health Workers to Use Smartphone-Attached Microscopy for Point-of-Care Visualization of Soil-Transmitted Helminths in the Peruvian Amazon
Authors: Ameen Eve , Nin Zhu Simon , Morales Guzman Cesar , Taub Erin , Siles Crystyan , Meza Sanchez Graciela , Vilcarromero Stalin , Ramal Cesar , Tangoa Nolberto , Marcos Luis A. 
Published: April 2023

ABSTRACT.
The prevalence of soil-transmitted helminths (STH) is high in communities within the Peruvian Amazon despite repeated mass-drug administration, demanding alternative strategies of control. Smartphone-attached microscopy (SAM) permits visualization of STH from a small portable microscope through a smartphone screen, potentially providing an inexpensive and rapid method of STH visualization in communities where diagnostic laboratories with microscopes are inaccessible. In this study, a total of 45 community health workers who work within the health systems of Loreto, Peru, attended a 1-day training session with lectures and practicums on STH and SAM. Participants received a pre- and post-intervention questionnaire. Post-intervention, participants were significantly more confident using SAM and identifying parasite images, symptoms, transmission, and treatment (P ≤ 0.0045). Post-intervention, participants correctly labeled a median of five of seven SAM apparatus components and five of eight steps of Kato–Katz technique, were less likely to choose taking medicine to prevent parasite infection (P = 0.0075), and were more likely to select Kato–Katz technique as a type of diagnostic test (P < 0.0001). Most participants felt ready to use SAM in their communities and stated that it could help rural communities far from health centers or laboratories (24%); provide faster identification, results, diagnosis (19%); permit at-home or on-the-spot visualization (14%); and save money (14%). Results show that community health workers show a high level of willingness and competency to learn about both STH and SAM and may be a yet-unexplored practical method of augmenting STH visualization, bringing healthcare to communities in Loreto with poor access to diagnostic laboratories and clinics.
Hidromorfometrik Analizlerle Esmahanım Deresi Havzasının Taşkın Duyarlılığının Belirlenmesi
Authors: KAMUŞ Ali Osman , ATALAY DUTUCU Ayşe 
Published: April 2023

Çalışma alanını oluşturan Esmahanım Deresi havzası Düzce’nin Akçakoca, Cumayeri ve Çilimli ilçeleri sınırları içerisinde yer almaktadır. Söz konusu çalışma alanında çeşitli tarihlerde meydana gelen taşkınlarda maddi ve manevi zararlar oluşmuştur. Bu çalışmanın amacı hidromorfometrik analizlerle Esmahanım Deresi havzası ve alt havzalarına ait taşkın duyarlılık sınıflandırmasının yapılmasıdır. Çalışmada yersel çözünürlüğü 12,5 m. olan 2008 tarihli ALOS (PALSAR) sayısal yükselti verisinden elde edilen Sayısal Yükselti Modeli (SYM) verisi kullanılmıştır. Analizlerin yapılmasında
Arc-GIS 10.5 yazılımı Mekansal Analiz araç kutusu içinde yer alan Hidroloji aracından yararlanılmıştır. Esmahanım Deresi alt havzası, Gübi alt havzası ve Küpler alt havzasından oluşan 3 alt havza çeşitli hidromorfometrik analizlere tabi tutulmuştur. Analiz sonuçlarına göre alt havzalar kendi aralarında taşkın duyarlılığı bakımından kıyaslanmışlardır. Elde edilen sonuçlara göre Gübi alt havzasında taşkın duyarlılığı yüksek iken, Esmahanım alt havzasında orta, Küpler alt havzasında ise taşkın duyarlılığı düşük çıkmıştır. Taşkın duyarlılığının yüksek ve orta olduğu Esmahanım ve Gübi alt havzalarında planlanan beşeri faaliyetlerde bu durumun göz önüne alınarak uygulamaların yapılması önem arz etmektedir.
Effect of alginate impression disinfection with sodium hypochlorite and castrol oil on Candida albicans counts and dimensional stability of the study model
Authors: Bidaya Eva Elminawati , Ritonga Putri Welda Utami 
Published: April 2023

Alginate is the most common used material because it is easy to use, affordable, and well accepted by patients. When impressing, alginate would be in contact with the surface of the oral cavity and saliva. It caused the microflora, like Candida albicanswould adhere to the surface so that it can cause cross-infection. Cross-infection prevention could be done by disinfecting the impression material before filling with gypsum. The main things of choosing a disinfectant is that the disinfectant material could eliminate microorganisms and affect the dimensional stability of impression material. This study aimed to determine the effect of alginate impression disinfection with sodium hypochlorite and castor oil (Ricinus communis oil) on the Candida albicanscounts and the dimensional stability of the study model. The samples of Candida albicanswas counted by colony counter andthe dimensional stability test by digital caliper. This study showed that alginate impression desinfection with castor oil had almost the same effectiveness as sodium hypochlorite in reducing the Candida albicanscounts, but dimension was changed even though the value of the dimensional changes is still within the tolerance limit.
An Analytic Solution to The Inhomogeneous Verhulst Equation Using Multiple Expansion Methods
Authors: Salim Agus , Sulaiman Albert , Kenji Mishima 
Published: April 2023

The present study aims to obtain an analytic solution for the inhomogeneous Verhults equation using multiple expansion methods. This study identifies the external factors represented by the inhomogeneous term that determine optimal variable conditions for ecosystem population growth. The simulation involves scenarios that utilize constant growth rates, periodic growth rates, constant external factors, and periodic external factors. It is found that external factors increase population growth, whereas constant external factors prevent growth under saturation conditions. Periodic external factors cause fluctuations in the amplitude of growth regions. The present study will highlight and discuss the development and application of the solution.