bluuebunny/crossref_metadata_2025 huggingface dataset:
Impresi Guru pada Penggunaan Media Digital dalam Pembelajaran Awal Bahasa Inggris Anak Usia Prasekolah
Authors: Novitasari Yesi , Fadillah Siti , Putri Azlin Atika
Published: July 2023

Belakangan ini bahasa Inggris telah banyak menyentuh dan tidak jarang dijadikan program unggulan pada suatu Lembaga PAUD. Sehingga dalam pembelajarannya membutuhkan inovasi-inovasi media yang diselaraskan dengan kemajuan zaman serta karakteristik anak usia prasekolah. Tujuan penelitian ini yaitu mengetahui impresi guru pada pemanfaatan media pembelajaran digital dalam pengajaran awal bahasa inggris pada anak usia prasekolah. Adapun jenis riset ini merupakan deskriptif kuantitatif dengan sampel penelitian guru PAUD di Kecamatan Rumbai Kota Pekanbaru berjumlah 36 orang yang ditentukan melalui teknik total sampling. Hasil penelitian menjelaskan bahwa impresi guru pada penggunaan media pembelajaran digital dalam pengajaran awal bahasa inggris anak usia prasekolah berada dalam kategori baik. Dengan kata lain meskipun kemampuan guru dalam menggunakan perangkat digital untuk kegiatan pembelajaran masih cukup rendah, namun guru memandang media digital ini berpotensi meningkatkan minat dan motivasi belajar anak, selain itu juga bermanfaat dalam menstimulasi pengetahuan dan keterampilan anak usia prasekolah. Oleh karenanya, berdasarkan hasil penelitian ini juga diperlukan tindak lanjut berbentuk pelatihan literasi digital untuk guru PAUD di Kecamatan Rumbai, Kota Pekanbaru, dalam pembelajaran anak usia prasekolah khususnya bahasa inggris awal.
Partisipasi Orang Tua dalam Pendidikan Anak Usia Dini di Wilayah Pedesaan Indonesia
Authors: Mulia Pupun Suci , Kurniati Euis
Published: July 2023

Partispasi orang tua merupakan elemen krusial dalam meningkatkan kualitas pendidikan. Pedesaan merupakan wilayah yang sering kali terabaikan dalam hal pembangunan, baik fisik maupun non-fisik sehingga berkontribusi terhadap disimilaritas pembangunan sektoral, salah satunya sektor pendidikan. Ketidakfahaman orang tua akan cara belajar anak usia dini menimbulkan ketimpangan perlakukan antara guru dan orang tua sehingga dapat menyebabkan ambiguitas pada anak dan dapat menghambat perkembangan mereka. Tujuan penelitian ini untuk mengetahui bagaimana dan faktor apa yang mempengaruhi partisipasi orang tua dalam PAUD di wilayah pedesaan. Penelitian ini menggunakan metode kualitatif dengan pendekatan studi literatur. Hasil yang diperoleh penelitian ini : 1) Partisipasi orang tua yang paling dominan di wilayah pedesaan pada umumnya baru sebatas menyekolahkan anak dilembaga PAUD terdekat. 2) faktor yang mempengaruhi partisipasi orang tua dalam PAUD di wilayah pedesaan antara lain jarak geografis, sosialisasi, ketersediaan waktu, status ekonomi, tingkat pendidikan orang tua dan persepsi mereka tentang urgensi PAUD. Minimnya partisipasi orang tua dalam PAUD menjadi salah satu hambatan optimalisasai PAUD di wilayah pedesaan.
Penanaman Nilai Karakter Religius melalui Film Animasi Nussa dan Rara pada Anak Usia 5-6 Tahun
Authors: Nurhayati Nurhayati , Fadillah Nurul Dinda , Setianingsih Hesti Putri , Usman Sri
Published: July 2023

Penanaman nilai karakter religius salah satu hal terpenting yang harus ditanamkan sejak dini, sebab nilai karakter religius menjadi bekal untuk masa depan anak. Karakter religius merupakan proses dalam mengubah nilai agama agar bisa tumbuh dan berkembang pada karakter individu dan menyatu sebagai perilaku seseorang. Tujuan penelitian penanaman nilai karakter religius melalui film animasi Nussa dan Rara. Metode yang digunakan  dalam penelitian yaitu kualitatif melalui wawancara, dokumentasi, dan pengamatan. Metode persentase digunakan sebagai teknik penganalisisan data. Penelitian di lakukan pada anak usia 5-6 tahun. Pada penelitian membuktikan terhadap penanaman nilai karakter religius, film animasi Nussa dan Rara memiliki pengaruh terhadap pembentukan karakter pada anak usia 5-6 tahun. Penanaman nilai karakter religius pada penelitian ini berupa aspek mengenal ciptaan tuhan, sopan santun, dan peduli lingkungan. Berdasarkan hasil rekapitulais observasi yang dilakukan diperoleh adanya peningkatan yakni seluruh aspek menunjukkan perkembangan yang meningkat sesuai tahapan perkembangan anak di setiap indikator penilaian guru
Improving Students’ Learning Outcomes in Natural Science Subject for Third Grade of Elementary School Through Video Media
Authors: Panjaitan Muktar Bahruddin , Alamsyah Mashudi , Siburian Martua Ferry , Fatmawati Endang , Uslan Uslan , Siagian Gunaria
Published: July 2023

This research study explored the use of video media to improve science learning outcomes for third-grade elementary school students in Indonesia. To conduct the survey, the researchers select a representative sample of third-grade students from a target population, ensuring that the sample adequately represents the diversity of students in terms of backgrounds, academic abilities, and prior exposure to video media in science education. A qualitative survey methodology was employed, and data were collected from a sample of 27 students. The findings indicate that video media positively impacted students' perception of science learning. Students demonstrated high levels of interest and engagement, found the content clear and understandable, experienced improved retention of knowledge, enjoyed self-paced learning, engaged in collaborative experiences, and benefited from the multimodal nature of video media. These findings highlight the potential of video media as a valuable tool in enhancing science education for elementary school students
Improving Students’ Ability in Using English with A Simple Translation: A Case on Elementary School Level
Authors: Sinambela Erika , Siregar Roswani , Pakpahan Carolina
Published: July 2023

Although English is now being learned in every stage of education, but students always get problem to learn it. This research study explores the use of simple translation for English language improvement among 3rd-grade students at the elementary school level. Adopting a qualitative approach with a survey method, the study aims to investigate students' perception of simple translation and describe its implementation in the classroom. The findings reveal a positive perception of simple translation, with some students expressing a liking for its effectiveness in enhancing their English language skills. These findings highlight the potential benefits of incorporating simple translation into language learning activities. The study provides insights into the types of activities and the teacher's role in implementing simple translation. These findings contribute to the understanding of language learning strategies for young learners and inform the development of effective pedagogical approaches for English language improvement at the elementary school level.
Project-Based Learning in Improving Early Childhood Children’s Ability to Know Social and Geographical Environments
Authors: Setyowati Sri , Rakhmawati Nur Ika Sari , Fitri Ruqoyyah , Saroinsong Wulan Patria , Simatupang Nurhenti Dorlina
Published: July 2023

The teacher's efforts in providing educational services in schools to introduce children's social and geographical environment can be made using project-based learning (Project Based Learn). This study aimed to determine the effectiveness of project-based learning in improving early children's skills in social and geographic environments. The research design used is a quasi-experimental design. The experimental group was not randomly selected, and the control group was separated into two sample groups. According to the hypothesis, the experiment produced substantial results. So that Ha is accepted, it can be concluded that project-based learning significantly influences the introduction of early childhood's social and geographical environment.
Evaluasi Peran Guru dalam Pembelajaran Bercerita Guna Mengembangkan Kemampuan Menyimak Anak Usia Dini
Authors: Indiaswari Tiara Khori , Katoningsih Sri
Published: July 2023

Masa kanak-kanak atau usia dini merupakan masa emas (golden age), yang juga berarti masa peka (sensitive period) bagi anak untuk mendapatkan pengalaman yang berbeda bagi pertumbuhan dan perkembangannya. Penelitian ini bertujuan untuk mengetahui metode yang dipakai guru supaya anak dapat menyimak dengan baik selama pembelajaran, kendala yang dihadapi guru, dan untuk mengetahui bagaimana guru menjalin hubungan dengan anak guna meningkatkan mutu pembelajaran. Hal ini juga bertujuan sebagai bahan evaluasi  kepada guru untuk pembelajaran yang lebih baik. Peneliti menggunakan penelitian kualitatif. Responden penelitian ini terdiri dari dua orang guru yang menunjukkan bahwa metode bercerita dengan konsep yang berbeda berpengaruh terhadap keterampilan menyimak dan berbicara siswa. Hal ini tercermin dari kemampuan mendengar dan menyimak anak yang berubah dan meningkat secara positif dengan metode bercerita. Kesimpulan dari penerapan adalah penerapan metode cerita yang digunakan oleh pendidik sangat berperan dalam menciptakan suasana belajar yang menyenangkan, dan dapat mempengaruhi kemampuan berbicara anak di Taman Kanak-Kanak.
Kesiapan Guru dalam Pelaksanaan Kurikulum Merdeka Belajar di Sekolah Dasar
Authors: Febrianningsih Rani , Ramadan Zaka Hadikusuma
Published: July 2023

Kurikulum Merdeka Belajar merupakan kebijakan Kementerian Pendidikan, Kebudayaan, Ristek yang bertujuan untuk mengoptimalkan kurikulum yang ada. Tujuan penelitian ini adalah menganalisis kesiapan guru dalam mengimplementasikan Kurikulum Merdeka Belajar. Metode penelitian adalah studi kasus yang melibatkan dua guru dan kepala sekolah di Sekolah Dasar pelaksana kurikulum Merdeka Belajar. Penelitian ini dikumpulkan berdasarkan wawancara, observasi dan dokumentasi. Kemudian dianalisis melalui pengumpulan data, reduksi data, penyajian data dan kesimpulan. Hasil penelitian ini menunjukkan bahwa kesiapan guru dalam mengimplementasikan kurikulum merdeka belajar di sekolah dasar sudah cukup optimal. Faktor kendala guru sekolah dasar dalam mengimplementasikan kurikulum merdeka belajar adalah kurangnya pemahaman tentang kurikulum merdeka belajar antara guru dan orang tua. Dan sarana dan prasarana belum memadai.
Neuroparenting Book Development: Stimulation of Children’s Brain Development
Authors: Ulfah Maulidya , Aryani Sekar Ayu , Maemonah Maemonah
Published: July 2023

This research aims to yield a neuroparenting book as the nurture model for stimulating children's development that is appropriate to be used by parents. The result of need analysis finds that parents are not yet optimal in stimulating the child’s development with various activities. Neuroparenting is a form of nurturing that optimizes the development of the brain. The methods used are the Research and Development 4-D model. The product is validated by experts and is trialed with 40 parents. The data gathering techniques are observation, questionnaires, interviews, and documentation. The analysis while disseminating the questionnaire was through descriptive analysis, and the product quality was through quantitative data analysis. The development of the book’s content includes nurture, child’s characteristics, positive upbringing, parents’ emotions, effective communication, child’s activities, health, and character building. This study shows that the result of the neuroparenting book is declared to be very appropriate to use, with the result from media experts at 84,67%, material experts at 84.33%, and language experts or linguists at 88,67%. Based on trials, this book has benefits for parents in order to increase the knowledge, attitudes and skills of the community in stimulating children's growth and development.
The Use of Smartphone Assisted Picture Word Inductive Models to Improve Basic Literacy
Authors: Gustiana Asep Deni , Rahman Rahman , Hartati Tatat , Supriatna Nana
Published: July 2023

Basic literacy is highly needed to ease students’ understanding of a concept. Therefore, it is necessary to deliver an innovative teaching approach to enhance students’ basic literacy. This study aims to investigate the use of picture word inductive models with the help of smartphones to increase the basic literacy of elementary school students in grade one. This study employed a quantitative approach with quasi experimental methods a pretest-posttest control group design. The population of this study was grade one from elementary school in Bandung City. The sample of this study was two classes (experimental and control) from each school which were selected randomly. The number of samples was 113 consisting of 57 students in the experimental class and 56 people in the control class. To collect data, we used a basic literacy test and analyzed it by using a t-test. This study shows that the use of picture word inductive models with the help of a smartphone can improve basic literacy. The findings of this study are that picture word inductive models with the help of smartphones can facilitate students who have different reading and writing abilities.
Inovasi Guru dalam Pembelajaran Seni Musik untuk Siswa Kelas Rendah Sekolah Dasar
Authors: Suprayitno Suprayitno , Wiryanto Wiryanto , Fauziddin Mochammad , Julianto Julianto
Published: July 2023

Inovasi guru diperlukan dalam proses pembelajaran untuk mendukung mutu pendidikan. Tujuan penelitian ini ialah untuk menganalisis inovasi yang dilakukan guru dalam pembelajaran seni musik untuk siswa kelas rendah sekolah dasar. Dalam penelitian ini digunakan metode kualitatif deskriptif, dimana 15 informan dilibatkan dalam pengumpulan data, terdiri dari 1 guru kelas, dan 14 siswa SDIT Insantama Rangkasbitung. Pengumpulan data dilakukan melalui observasi, wawancara, dan dokumentasi. Model Miels dan Huberman digunakan dalam analisis data. Hasil penelitian memperlihatkan bahwasannya inovasi guru dalam mengajar seni musik untuk siswa kelas rendah dilakukan dengan memanfaatkan alat yang berada disekitar anak. Alat ini dikreasikan menjadi media pembelajaran yang digunakan oleh siswa. Inovasi yang dilakukan oleh guru memiliki pengaruh yang positif terhadap penilaian keseharian anak, yang terdiri dari penilaian sikap, penilaian pengetahuan, dan penilaian keterampilan.
Analisis Penyebab Kejadian Stunting pada Anak Usia Dini
Authors: Sairah Sairah , Nurcahyani Marizha , Chandra Andy
Published: July 2023

Data Riset Kesehatan Dasar tahun 2018 mengungkapkan bahwa Indonesia berada pada peringkat kelima dan keempat tertinggi dunia mengenai angka wasting dan stunting. Penyebab stunting antara lain akibat terbatasnya akses terhadap makanan bergizi yang disebabkan karena faktor ekonomi maupun pengetahuan. Penelitian ini bertujuan menganalisis lebih mendalam mengenai penyebab terjadinya stunting. Jenis metode penelitian ini adalah deskriptif kualitatif dengan mengumpulkan data melalui kunjungan kepada informan. Teknik pengumpulan data adalah wawancara dan dokumentasi. Teknik analisis data meliputi reduksi data, penyajian data, penarikan kesimpulan, dan verifikasi. Hasil penelitian menunjukkan bahwa masyarakat percaya bahwa faktor genetik memiliki peranan penting dalam penyebab stunting dengan persentase 85%. Selain itu, 68% menyatakan adanya pengaruh ketidakstabilan ekonomi keluarga untuk kemampuan membeli makanan bergizi secara teratur dan 72% tingkat pendidikan dan pengetahuan tentang gizi dapat mempengaruhi keputusan dan perilaku yang berhubungan dengan pemberian makanan. Rekomendasi hasil penelitian adalah agar masyarakat meningkatkan pengetahuan tentang Stunting dan pentingnya menjaga kualitas gizi makanan.
Strategi Pengembangan Literasi Baca Tulis (Praliterasi) untuk Menunjang Pengetahuan Anak
Authors: Wahyuni Melindha Putri Nur , Darsinah Darsinah
Published: July 2023

Literasi baca tulis ini sangat penting dilakukan karena dapat menunjuang prestasi anak untuk mencapai kesusuksan di masa yang akan datang sehingga memerlukan strategi, oleh karena itu pengembangnnya perlu strategi yang tepat. Tujuan dari penelitian yaitu untuk mendeskripsikan strategi yang digunakan guru dalam mengembangkan literasi baca tulis untuk anak usia dini. Penelitian ini merupakan penelitian deskriptif kualitatif. Objek penelitiannya adalah pengembangan literasi baca tulis pada anak usia dini. Subjek penelitian ini yaitu guru BA dengan menggunakan teknik purposive sampling yang jumlah partisipasinya sebanyak empat orang. Teknik pengumpulan data menggunakan observasi dan wawancara. Data divalidasi dengan metode triagulasi teknik. Teknik analisis data menggunakan model Miles dan Hubermen dengan tahap yaitu reduksi data, penyajian data, dan penarikan kesimpulan. Hasil penelitian menunjukkan bahwa strategi pengembangan literasi di dalam kelas dengan menggunakan metode bermain, metode bercerita, sudut baca, menempel teks di dinding kelas, dan menggunakan buku jilid. Strategi di luar kelas yaitu berkujung ke perpustakaan daerah, menggunakan permainan tradisional, dan kerja sama dengan orang tua. Penggunaan strategi ini cukup efektif dilakukan.
Perkembangan Anak dengan Kebutuhan Khusus melalui Observasi yang Mendalam
Authors: Sukatmi Sri , Apriyansyah Chandra
Published: July 2023

Penelitian ini didasarkan pada pengembangan metode berdasarkan kondisi pembelajaran yang ada dan mencapai hasil pembelajaran yang diinginkan. Penelitian ini bertujuan untuk mengeksplorasi metode asesmen perkembangan anak berkebutuhan khusus di kelas Satuan Pendidikan Anak Usia Dini Sejenis (SPS) Alam Atifa Bogor, Jawa Barat. Metode penelitian yang digunakan adalah kualitatif, dengan melibatkan tiga subjek penelitian, yaitu seorang anak autisme (SY), guru kelas, dan guru pendamping. Dalam penelitian ini, instrumen penelitian yang digunakan meliputi wawancara, observasi, dan dokumentasi. Data dianalisis secara deskriptif melalui tahap pengumpulan, pengolahan, dan interpretasi data. Hasil penelitian ini diharapkan dapat memberikan pemahaman yang lebih mendalam tentang asesmen perkembangan anak berkebutuhan khusus pada kalangan guru-guru pendidikan anak usia dini di Bogor.
The Phenomenon of Changes in Student Behavior During Large-Scale Social Restrictions
Authors: Nurfuadi Nurfuadi , Nurkholis Nurkholis , Putri Amanda Retno
Published: July 2023

The impact of Large-Scale Social Restrictions in Indonesia currently has a major impact on behavioral changes that occur as a result of the Covid-19 pandemic. This study aims to analyze the phenomenon of changes in student behavior during Large-Scale Social Restrictions (PSBB) in the RA Kartini Cluster. The method used in this research is a qualitative method with the type of case study research. With the research subject, 7 teachers and 6 students in grades I-VI in the RA Kartini Cluster. The results of this study indicate that the impact of Large-Scale Social Restrictions that occurred in the RA Kartini Cluster was a change in student behavior such as changes in Discipline, Honesty, Social Care, Communication and Religious behavior. Based on the findings of this study, it can be concluded that the impact of Large-Scale Social Restrictions on student behavior occurs because of learning policies that make students feel less interested in learning as a result of various behavioral changes in the RA Kartini Cluster.
Persepsi Mahasiswa Pendidikan Dasar terhadap Gamifikasi dalam Pendidikan STEAM
Authors: Budiyono Budiyono , Wiryanto Wiryanto , Suprayitno Suprayitno , Primaniarta M. Gita
Published: July 2023

Gamifikasi memberikan ruang pembelajaran baru dalam pendidikan STEAM terhadap para akademisi dan praktisi pendidikan. Penelitian ini bertujuan untuk menjelaskan persepsi dari kalangan pendidik terhadap gamifikasi pembelajaran sebagai kebutuhan yang diterapkan pada multidisiplin ilmu. Penelitian ini menerapkan metode kualitatif dengan analisis deskriptif. Alur penelitian yang dilakukan adalah penyebaran kuisoner, wawancara dan dokumentasi. Subjek penelitian ini adalah mahasiswa pendidikan dasar dengan jumlah 13 responden. Hasil penelitian yang diungkapkan terdapat persetujuan tentang kebutuhan gamifikasi sebagai sebuah inovasi penerapan pendidikan STEAM. Tiga Elemen gamifikasi yang teridentifikasi dalam pendidikan STEAM dapat dilakukan dalam dengan menyesuaikan kompetensi guru dan karakteristik peserta didik. Jenis permainan yang menggunakan gamifikasi pembelajaran dalam pendidikan STEAM adalah dengan digitalisasi atau media pembelajaran konkrit. Upaya pengembangan bakat dan minat dapat diimplementasikan dengan rencana pembelajaran berbasis multidisiplin ilmu yang diterapkan pada permainan minecraft. Kebutuhan pembelajaran di era abad 21 menurut persepsi mahasiswa bidang pendidikan digitalisasi akan mendukung indeks kinerja utama perguruan tinggi.
Study the Application of Ultrasonic Technology for Phenol Removal in Petroleum Industry
Authors: Ismail Zainab Ziad , Jasim Ahmed Sabeeh
Published: July 2023

In this study, the sonochemical degradation of phenol in water was investigated using two types of ultrasonic wave generators; 20 kHz ultrasonic processor and 40 kHz ultrasonic cleaner bath. Mineralization rates were determined as a function of phenol concentration, contact time, pH, power density, and type of ultrasonic generator. Results revealed that sonochemical degradation of the phenol conversion was enhanced at increased applied power densities and acidic conditions. At 10 mg/L initial concentration of phenol, pH 7, and applied power density of 3000 W/L, the maximum removal efficiency of phenol was 93% using ultrasonic processor at 2h contact time. Whereby, it was 87% using and ultrasonic cleaner bath at 16h contact time and 150 W/L power density. Kinetic models applied to the sonolysis of phenol was evaluated for the first-order, pseudo-first-order, second- order, and pseudo-second-order kinetic models. The experimental data fitted very well the first-order kinetic model.
Testing and Commissioning of a Low-Speed Wind Tunnel (LSWT) Test Section
Authors: Hussain Ihssan Y. , Ali Anmar Hamid
Published: July 2023

The calibration of a low-speed wind tunnel (LSWT) test section had been made in the present work. The tunnel was designed and constructed at the Aerodynamics Lab. in the Mechanical Engineering Department/University of Baghdad. The test section design speed is 70 m/s. Frictional loses and uniformity of the flow inside the test section had been tested and calibrated based on the British standards for flow inside ducts and conduits. Pitot-static tube, boundary layer Pitot tube were the main instruments which were used in the present work to measure the flow characteristics with emphasize on the velocity uniformity and boundary layer growth along the walls of the test section. It is found that the maximum calibrated velocity for empty test section is 55 m/s. Three speeds are tested for uniformity and walls boundary layer at inlet and mid-section of test section. The results show that the flows are uniform at inlet and mid-section with turbulent flow from inlet to outlet.
Removal of Nickel and Cadmium Ions from Wastewater by Sorptive Flotation: Single and Binary systems
Authors: Mohammed Ahmed A. , Mohammed Farah Qasim
Published: July 2023

The removal of heavy metal ions from wastewater by sorptive flotation using Amberlite IR120 as a resin, and flotation column, was investigated. A combined two-stage process is proposed as an alternative of the heavy metals removal from aqueous solutions. The first stage is the sorption of heavy metals onto Amberlite IR120 followed by dispersed-air flotation. The sorption of metal ions on the resin, depending on contact time, pH, resin dosage, and initial metal concentration was studied in batch method .Various parameters such as pH, air flow rate, and surfactant concentration were investigated in the flotation stage. Sodium lauryl sulfate (SLS) and Hexadecyltrimethyl ammonium bromide (HTAB) were used as anionic and cationic surfactant respectively. The sorption process, which is PH dependent, shows maximum removal of metal ions at pH 7. Langmuir and Freundlich isotherm expressions were found to give both a good fit to the experimental data. Kinetic data correlated well with Lagergren second order kinetic model, and flotation step enhanced the removal efficiency of nickel and cadmium from wastewater from about 75% to 94% and reduce turbidity so it can dispense with the filtering process, which is expensive technology. It is believed that flotation separation has great potential as a clean water and wastewater treatment technology.
The sustainable urban development in Al_Kharkh historic center
Authors: Al-Saffar Maitham Hasan Mahdi , Al_Siliq Ghada Musa Razoki
Published: July 2023

The problems of urban historic centers are considered some of the subjects which are widely dealt with in urban studies since the middle of the 20th century. literature of urban development have raised it , beside the fact that large number of urban development projects of the historical centers in many cities of the world ,and emerged from the application of these new problems projects added their original urban problems , because these projects have dealt with the physical structures with the neglect of the social and economic sides, which are the base in sustainable development nResearch problem was elaborated as : The unclearly of knowledge of the potentials of the sustainable development in solving the urban problems of historic centers in general, and In Baghdad historic center of Karkh in particular. So the objective of the research becomes: clarifying how to elaborate the outputs of sustainable urban development with all its aspects.
Influence of Aging Time on Asphalt Pavement Performance
Authors: Sarsam Saad Issa , Adbulmajeed Samer Muayad
Published: July 2023

Aging of asphalt pavements typically occurs through oxidation of the asphalt and evaporation of the lighter maltenes from the binder. The main objective of this study is to evaluate influence of aging on performance of asphalt paving materials.nAsphalt concrete mixtures, were prepared, and subjected to short term aging (STA) procedure which involved heating the loose mixtures in an oven for two aging period of (4 and 8) hours at a temperature of 135 o C. Then it was subject to Long term aging (LTA) procedure using (2 and 5) days aging periods at 85 o C for Marshall compacted specimens. The effect of aging periods on properties of asphalt concrete at optimum asphalt content such as Marshall Properties, indirect tensile strength at 25 o C, Resilient Modulus and resistance to permanent deformation were evaluated. The impact of Short-term and long-term aging on asphalt concrete properties was evaluated. The stiffness of the mixture increases by increasing aging period that lead to increase of Marshall Stability, indirect tensile strength, and the resilient modulus, which leads to increases the resistance of mixtures against permanent deformation. The 8 hr. short term aging causes the Marshall stability, indirect tensile strength at 25 o C and resilient modulus to be increased by 52%, 34 % , 20% respectively as compared with control mixture while, the permanent deformation decreased by (33 %) as compared with control mixture.
Effect of Allowable Vertical Load and Length/Diameter Ratio (L/D) on Behavior of Pile Group Subjected to Torsion
Authors: Albusoda Bushra Suhail , Almashhadany Omar Yaseen
Published: July 2023

Some structures such as tall buildings, offshore platforms, and bridge bents are subjected to lateral loads of considerable magnitude due to wind and wave actions, ship impacts, or high-speed vehicles. Significant torsional forces can be transferred to the foundation piles by virtue of eccentric lateral loading. The testing program of this study includes one group consists of 3 piles, four percentages of allowable vertical load were used (0%, 25%, 50%, and 100%) with two L/D ratios 20 and 30, vertical allowable load 110 N for L/D = 20 and 156 N for L/D = 30. The results obtained indicate that the torsional capacity for pile group increases with increasing the percentage of allowable vertical load, when the percentage of allowable vertical load was 100% and L/D ratio (20) the torsional capacity for pile group increases about 42% if compared with the torsional capacity when the percentage of allowable vertical load was 0% for the same L/D ratio. Also increasing L/D ratio leads to increasing the torsional capacity of pile group, when the percentage of allowable vertical load is 100% and L/D ratio (30), the torsional capacity for pile group increased about 51% if compared with torsional capacity when L/D ratio was (20) for the same groups and the same percentage of allowable vertical load. At failure the twist angle for pile group remain constant 3° when the percentage of allowable load change from 0% to 100 and L/D ratio 20, while it decreases from 2.9° to 2.7° when the percentage of allowable load change from 0% to 100% respectively and L/D ratio 30.
Paving the Way for PPP's to Infrastructure Projects in Iraq
Authors: Alsaffar Angham , Altaay Meervat R.
Published: July 2023

The political situation experienced by Iraq before the events of 2003 that led to the collapse of infrastructure. rebuilding costs were estimated after 2003 by187(million USD) according to the estimates of the basic needs as stated in Five-Year Plan 2010-2014. The difficult in financing projects and the continuous demands for maintenance and operating cost, and working by contemporary styles in different countries, the strategic option is to adopt the government entering the private sector as a partner in the development process. Since public _private partnership (PPP's) is at a germinating stage of development in Iraq, it has been studied the critical success factors(CSF's) in the experiences of countries that have implemented the style (PPP's) in infrastructure projects which can be ensured or controlled in some way and in the effective management of those already embarked upon . It should pave the way for enhanced decision making in the choice of suitable projects. The mainly aims of this paper are:1- To highlight the importance and need of PPP‘s contracts in Iraq.2- Establishing a model of CSF's for infrastructure projects in Iraq. collected (87)success factors which characterized by the state directly in PPP's projects consists of (8)main criteria(Privatization and investment Policy, Economical , Legal and political ,Financial and commercial, Administration and organizational ,Social and environmental ,Technical and Support , motives and guarantees of government) and found out (40) CSFs among them through questionnaire experienced in these projects to work to assess the standards and compare them and come to decisions by the decision maker, and therefore have a database of views experienced for use in other projects.
Effect of Operating Conditions on Reverse Osmosis (RO) Membrane Performance
Authors: Mohammed Suad Abdulmuttaleb , Abbas Areej Dalaf , Sabry Laith Salem
Published: July 2023

The aim of this research is to study the effect of high concentrations of salts, pressure and temperature on the performance of the RO membrane with time. Four different (Na2CO3) concentrations (5000, 15000, 25000 and 35000) ppm and various pressures such as (1, 3 and 5) bars at different temperatures of the feed solution (i.e., 25, 35 and 45) ◦C were used in this work. It was found that, as the concentration of salt and feed temperatures increase, the rejection of the salt decrease. While the salt rejection of the membranes increases with increase of transmembrane pressure.
Reaction Kinetics of Tert-Butanol Esterification
Authors: Jawad Ali Raad Mohammed , Hummadi Fadhil Abbas
Published: July 2023

In this study, the kinetics for the reaction of tert-butanol esterification with acetic acid in the presence of Dowex 50Wx8 catalyst was investigated. The reaction kinetic experiments were conducted in 1000 milliliter vessel at temperatures ranged from 50 - 80 oC, catalyst loading 25-50 g/L, and the molar ratios of acetic acid to tert-butanol from 1/3 – 3/1. The reaction rate was found to increase with increasing temperature and catalyst loading. It was also found the conversion of the tert-butanol increases as the molar ratio of acid to alcohol increases from 1/3 – 3/1. The Non-ideality of the liquid phase was taken into account by using activities instead of molar fractions. The activity coefficients were calculated according to the group contribution UNIFAC method. The results show that the activation energy of tert-butanol esterification with acetic acid was found to be 1.09 kJ/mol.
Adsorption of Levofloxacine Antibacterial from Contaminated Water by Non – Conventional Low Cost Natural Waste Materials
Authors: Mohammed-Ridha Mohanad J. , Abdul-Ahad Muna Y.
Published: July 2023

An experimental study was conducted with low cost natural waste adsorbent materials, barley husks and eggshells, for the removal of Levofloxacine (LEVX) antibacterial from synthetic waste water. Batch sorption tests were conducted to study their isothermal adsorption capacity and compared with conventional activated carbon which were, activated carbon > barley husks > eggshells with removal efficiencies 74, 71 and 42 % with adsorbents doses of 5, 5 and 50 g/L of activated carbon, barley husks, and eggshells respectively. The equilibrium sorption isotherms had been analyzed by Langmuir, Freundlich, and Sips models, and their parameters were evaluated. The experimental data were correlated well with the Langmuir model which gives the best fit for LEVX adsorption / biosorption on to activated carbon, barley husks, and eggshells respectively.The adsorption capacity was almost dependent on temperature. The thermodynamic parameters associated with the adsorption process, ΔGo , ΔHº and ΔSº were reported and it is suggested to be physisorption, and of exothermic nature.
1-DOF Model for Fluid-Structure-Interaction Vibration Analysis
Authors: Ismail Mahmud Rasheed
Published: July 2023

In this paper an attempt to provide a single degree of freedom lumped model for fluid structure interaction (FSI) dynamical analysis will be presented. The model can be used to clarify some important concept in the FSI dynamics such as the added mass, added stiffness, added damping, wave coupling ,influence mass coefficient and critical fluid depth . The numerical results of the model show that the natural frequency decrease with the increasing of many parameters related to the structure and the fluid .It is found that the interaction phenomena can become weak or strong depending on the depth of the containing fluid .The damped and un damped free response are plotted in time domain and phase plane for different model parameters It is found that the vibration free response is still sinusoidal for weak FSI coupling ,however for strong coupling it behaves as modulated periodic response .To justify some of the theoretical aspects such as; the effects of the fluid density and the interact shape on the natural frequency an experiment was conducted .The results of the experiment shows a good agreement with the theory where the error is not exceeded 7%.
Using Alternative Cogeneration Plants in Iraqi Petroleum Industry
Authors: HATEM FALAH F.
Published: July 2023

The present paper describes and analyses three proposed cogeneration plants include back pressure steam-turbine system, gas turbine system, diesel-engine system, and the present Dura refinery plant. Selected actual operating data are employed for analysis. The same amount of electrical and thermal product outputs is considered for all systems to facilitate comparisons. The theoretical analysis was done according to 1st and 2nd law of thermodynamic. The results demonstrate that exergy analysis is a useful tool in performance analysis of cogeneration systems and permits meaningful comparisons of different cogeneration systems based on their merits, also the result showed that the back pressure steam-turbine is more efficient than other proposals. Moreover, the results of the present work indicate that these alternative plants can produce more electric power than that required in the refinery. At present time, the industrial cogeneration plants are recommended in Iraq, especially in petroleum industry sectors, in order to contribute with ministry of electricity to solve the present crisis of electric power generation. Such excess in the power can sold to the main electric network. The economic analysis are proved the feasibility of the proposed cogeneration plants with payback period of four year and six months ,three year and eight months, and ten years for steam cogeneration plant, gas turbine cogeneration plant and diesel engine cogeneration plant respectively.
Effect of Polymers on Permanent Deformation of Flexible Pavement
Authors: Hamdou Hamid Mahmoud , Ismael Mohammed Qadir , Abed Mohammed Assi
Published: July 2023

The permanent deformation of flexible pavement represent serious problem in hot climate region. Numerous efforts are devoted to mitigate this distress such as modifying asphalt binder by polymers. The present study demonstrate the effect of utilizing four types of polymers to reduce the permanent deformation, these polymers are Polyethylene Wax (PEW), Styrene Butadiene Rubber (SBR), Ethylene Propylene Dien Monomer (EPDM) and Ethylene Vinyl Acetate (EVA). The prepared mixtures composed of 4.9 % of 40/50 asphalt binder, 12.5 mm nominal aggregate maximum size and limestone dust as filler. The permanent and resilient strains have been recorded when the cylindrical specimens, 101.6 mm in diameter and 203.2 mm in height, tested by repeated loading system. The main conclusions exhibit that SBR and EPDM with the same concentration (15 % by weight of asphalt binder) reduced the permanent deformation by 30.20 % and 30.46 % respectively. Although, the PEW and EVA reduced permanent deformation by lower values, 13.24 % and 17.35 % respectively, but the incremental percentage of their action are higher. The influences of testing temperature and stress level on permanent deformation were investigated. Linear regression model was established to correlate the values of permanent deformation and the resilient modulus of asphalt mixtures.
Succession of Urban Structures of the City of Baghdad
Authors: ALslik Ghada Musa Razouqi , Majeed Firas Ali
Published: July 2023

The research shed light on the historic evolution of Baghdad through its long, expansive history. The starting point focuses on the geographic characteristics, and the nature of its habitation, prior to laying the circular plan of Baghdad. Then the research proceeds to cover the stage of building the round city of Baghdad. The research continue to cover the expansion and sequential growth across the banks of Tigris river.A concentrated attention is devoted to analyses the morphological, geographical and above all the makeup of present day city of Baghdad, pinpointing the apathetic plans, decisions, and actions which completely disfigured the image, and tradition of the old city of Baghdad, behind the delusive slogans of “comprehensive development”. From the above ejective acts, the research problem is formulated as: The gradual dilapidation of major components that recall the historic image of Baghdad.The research assumption thus formulated the causes that lead to the disfigurement of Baghdad historic identity in the consequent plans and policies which gave little or no attention to the historic developmental formation of the city. From the above assumption, the research goal can be stated as “Pin pointing the historic path of development to enclose the salient historic features that makes impact on the present day image of Baghdad.
PENGEMBANGAN DASHBOARD SISTEM INFORMASI DI UNIVERSITAS NEGERI MANADO
Authors: Rianto Indra , Pratasik Stralen , Maru Mister Gidion , Pardanus Rudy H. W.
Published: July 2023

Penelitian ini bertujuan untuk menyediakan sebuah Sistem Informasi berbasis website yang menyajikan dashboard informasi penting yang ada di Universitas Negeri Manado. Dashboard ini nantinya dapat membantu pimpinan maupun unit-unit kerja yang yang ada di Universitas Negeri Manado untuk dapat memperoleh data-data baik data jumlah mahasiswa, jumlah lulusan, data sumber daya manusia maupun data-data lainnya tanpa harus bertanya kepada unit kerja terkait dan menganalisis datanya sendiri atau secara manual. Aplikasi berbasis web ini dirancang menggunakan model MVC (Model, View, Controller) sedangkan konsep yang digunakan adalah konsep OOP (Object Oriented Programming). Metode pengembangan yang digunakan untuk membangun aplikasi ini adalah metode Extreme Programming. Bahasa pemrograman yang digunakan adalah PHP dengan menggunakan framework Codeigniter dengan implementasi model MVC. Dengan adanya dashboard ini maka telah tersedia wadah untuk menyajikan informasi berbasis website di Universitas Negeri Manado yang bisa diakses dimana saja dan kapan saja dengan menggunakan jaringan internet.
Wheelchair Accessibility: Bridging the Gap to Equality and Inclusion
Authors:   Biju Patnaik University of Technology (BPUT), Rourkela, Odisha, India, Sahoo Sushil Kumar , Choudhury Bibhuti Bhusan ,   Department of Mechanical Engineering, Indira Gandhi Institute of Technology (IGIT), Sarang, Odisha, India
Published: July 2023

This research paper investigates the impact of wheelchair accessibility on the overall well-being and quality of life of individuals with mobility limitations. The paper highlights the importance of wheelchair accessibility as a key determinant of independence, social participation, and overall societal inclusion. By examining the barriers and challenges faced by wheelchair users in various environments, including public spaces, workplaces, and educational institutions, this study sheds light on the profound implications of limited accessibility. Furthermore, it explores the benefits and potential outcomes of improved wheelchair accessibility, such as increased opportunities for employment, education, and social engagement. The research emphasizes the need for proactive measures, including policy reforms, infrastructure modifications, and awareness campaigns, to enhance wheelchair accessibility and break down the physical and attitudinal barriers that hinder full participation. By recognizing wheelchair accessibility as a crucial component of a more inclusive society, this research contributes to the ongoing dialogue and advocacy efforts aimed at promoting equal rights and opportunities for individuals with mobility impairments.
Human resource development and job satisfaction among nurses
Authors: Suprapto
Published: July 2023

The skills of a good nurse manager, the quality and quantity of human resources, and the development of human resources to face changes both the internal and external environments begin with building nurses' commitment to various indicators of human resources development in hospitals that have an impact on customer or patient satisfaction. Quantitative research with an analytical observational approach was conducted in hospitals, with a sample of 136 nurses from the population obtained by probability sampling. The results of the statistical test that training is the human resources development factor that most affect the job satisfaction of nurses in hospitals with an Exp (B) ratio or odds of 1.790, indicating that nurses with more specialized training tend to be 1.790 times more satisfied than nurses with less specialized training, and that this is also true since their Exp B grades are good. This study concludes that training has a big impact on how happy nurses are. As healthcare providers in hospitals, nurses need to optimize their abilities and competencies to raise the standard of nursing care. Nursing directors are essential in building and recruiting, and measuring nurse competencies.
PENDIDIKAN AGAMA KRISTEN BERBASIS KELUARGA DALAM PEMBENTUKAN KARAKTER REMAJA USIA 13-15 TAHUN
Authors: Wenda Yowenus
Published: July 2023

Kajian ini berangkat dari beragam permasalahan yang sering terjadi pada kehidupan manusia. Di mana perilaku anak-anak remaja saat ini banyak menimbulkan persoalan atau permasalahan negatif di kalangan masyarakat sebagaimana penjelasan data empiris dalam tulisan artikel ini. Salah satu karakter anak remaja yang dapat dilihat adalah minimnya rasa kepedulian dan cenderung menentang nilai-nilai kristiani dan kebudayaan yang berlaku. Tujuan penulisan ini adalah melihat bagaimana upaya-upaya yang dilakukan oleh orang tua Kristen dalam membentuk karakter anak remaja sesuai dengan nilai-nilai Kristiani atau kebenaran. Metode yang digunakan dalam penulisan artikel ini adalah metode kualitatif dengan mengkaji sejauh mana permasalahan yang timbulkan oleh anak remaja saat ini. Analisis yang dilakukan dalam tulisan artikel ini menggunakan berbagai sumber literatur misalnya jurnal, buku dan pengamatan langsung di lapangan untuk mendukung analisis penulisan artikel ini. Hasil yang ditemukan adalah orang tua Kristen memiliki peran yang sangat signifikan melalui upaya dan pendekatan dalam membentuk karakter anak remaja di era sekarang sebagaimana penjelasan dalam kajian artikel ini. Dengan demikian, tanggung jawab orang tua Kristen dalam mendidik dan membentuk karakter anak remaja sangat penting untuk direalisasikan sebagai wujud dari kepedulian terhadap fenomena yang ada di kalangan anak remaja saat ini.
Can Lexical Semantics Improve Translation In Low-resource And Endangered Languages?
Authors: Subramanian Vivek , Sundararaman Dhanasekar
Published: July 2023

Low-resource, especially endangered languages are often overlooked in a majority of NLP tasks. For instance, in neural machine translation (NMT), the aim is to map text from one language into another. Although many advances have been made in developing NMT systems for natural language, little research has been done on understanding how the word ordering and lexical similarity between the source and target language affect translation performance. Specifically, in the case of low-resource and endangered languages, translation performance can often be enhanced through model architectures that leverage this understanding. Here, we investigate these relationships on a variety of low-resource, endangered Eurasiatic language pairs from the OpenSubtitles2016 database, where the source language is English, and find that the more similar the target language is to English, the greater the translation performance. In addition, we study the impact of providing NMT models with part of speech (POS) of words in the English sequence and find that, for Transformer-based models, the more dissimilar the target language is from English, the greater the benefit provided by POS. Our findings could further enhance interdisciplinary collaboration to develop NLP models to benefit speakers of many endangered languages
Perubahan Iklim dan Isu Lingkungan pada Pemilu 2024, Menarikkah?
Authors: Luerdi Luerdi
Published: July 2023

Luerdi, L. (2023). Perubahan Iklim dan Isu Lingkungan pada Pemilu 2024, Menarikkah?
Political Campaign Ads on Facebook: Investigating the Effects of Incivility in Videos and User Comments on Affective Polarization and Mobilization
Authors: Neyazi Taberez Ahmed , Kuru Ozan , Mukerjee Subhayan
Published: July 2023

Uncivil campaign ads on social media may polarize and mobilize voters, both directly and indirectly, by fueling affective polarization in user comments. Uncivil campaign content may trigger uncivil comments, thereby further increasing polarization and mobilization. To test the effects of such dynamics, we conducted a survey-experiment during the assembly elections in the Indian state of West Bengal in March/April 2021 (N = 921). We edited real campaign video ads on Facebook and manipulated their source (one of two parties), incivility in the video (civil/uncivil) as well as incivility in user comments (civil/uncivil) and examined their effects on affective polarization and political mobilization. We found party identification to be the strongest predictor of affective polarization, with ad incivility playing only a limited role. Our findings help extend the debates on affective polarization in the context of social media which are becoming increasingly prominent in political campaigns and provides empirical evidence from a non-Western context.
Strategi Guru Dalam Meningkatkan Minat Belajar Peserta Didik
Authors: ulum nindia alfiyatul
Published: July 2023

Studi ini mengeksplorasi peran guru dalam proses interaksi belajar mengajar, minat siswa, strategi pembelajaran, dan hasil pembelajaran. Metode penelitian yang digunakan adalah studi literatur untuk mengumpulkan informasi relevan.