bluuebunny/crossref_metadata_2025_split huggingface dataset:
Perencanaan Mesin Pengupas Kulit Kacang Tanah Kapasitas 800 kg/jam
Authors: Satrya Eka , Abu Risal , Mukhnizar Mukhnizar 
Published: August 2023

This study aims to design a peanut peeling machine (pods) by utilizing an electric motor as a driving machine and a transmission system to continue rotation to a skin-peeling mechanism using a rotary type that drives a roller rotating shaft connected via a v-belt. The planning method in this research is the design of the peanut skin peeler machine, the method of planning elements and machine components, and making technical drawings. The results of this study are in the form of a Peanut Peeling Machine (pod) design, including the working principle of the Peanut Skin Peeler Machine, which is based on friction and surface pressure. Peanut Peeler Machine planning, and Peanut Peeling Machine technical drawings include: design/model, dimensions/size of machine components and elements, materials/materials, as well as instructions for the processing of each component/element of the machine.
Penelitian ini bertujuan untuk merencanakan suatu mesin pengupas kulit (polong) kacang tanah dengan memanfaatkan motor listrik sebagai mesin penggerak dan sistem transmisi untuk meneruskan putaran ke mekanisme pengupasan kulit menggunakan tipe rotary yang menggerakkan poros pemutar roller yang dihubungkan melalui v-belt. Metode perencanaan dalam penelitian ini yaitu desain mesin pengupas kulit kacang tanah, metode perencanaan elemen dan komponen mesin, dan pembuatan gambar teknik. Hasil dari penelitian ini berupa rancangan mesin pengupas kulit (polong) kacang tanah, diantaranya prinsip kerja Mesin pengupas kulit kacang tanah yaitu berdasarkan gesekan dan tekanan permukaan roller pengupas (dilapisi karet) yang berputar terhadap kulit (polong) kacang tanah dan kisi Stator, spesifikasi hasil perencanaan mesin pengupas kulit kacang tanah, dan gambar teknik mesin pengupas kulit (polong) kacang tanah meliputi: desain/model, dimensi/ukuran komponen dan elemen mesin, bahan/material, serta instruksi proses pengerjaan masing-masing komponen/elemen mesin.
Efektivitas Model Pembelajaran Problem Solving Dalam Meningkatkan Hasil Belajar Siswa SMK
Authors: Saputra Hendra Dani , Sugiarto Toto , Purwanto Wawan , Afifi Fajar Hanifudin , Hidayat Fazrin , Alwi Erzeddin 
Published: August 2023

Research-based on problems in applying the learning model at SMKN 3 Bungo. This study aims to see the effectiveness of using the Problem Solving learning model at SMKN 3 Bungo. The learning model used is centered on the teacher, so student activity is still low. This type of research is a pre-experimental study using a one-group pretest post-test design. The research subjects were 24 students of class XI TKR 2 SMKN 3 Bungo. The research instrument is in the form of test questions in the form of objective questions. the data is analyzed through analysis of student learning completeness, effect size, and N-Gain. The results of this study indicate that the Problem Solving learning model effectively improves student learning outcomes in class XI TKR 2 at SMKN 3 Bungo, where 91.67% of students are declared to have completed it based on the KKM.
Penelitian ini bertujuan untuk melihat keefektifan pengunaan model pembelajaran Problem Solving di SMKN 3 Bungo. Penelitian berdasarkan permasalahan dalam penerapan model pembelajaran yang diterapkan di SMKN 3 Bungo. Model pembelajaran yang digunakan terpusat pada guru, sehingga keaktifan siswa masih rendah. Jenis penelitian merupakan penelitian pre experimental menggunakan desain one group pretest posttest. Subjek penelitian merupakan siswa kelas XI TKR 2 SMKN 3 Bungo yan berjumlah 24 orang. Instrumen penelitian dalam bentuk soal tes dalam bentuk soal objektif. Data yang terkumpul, dianalisis melalui analisis ketuntasan belajar siswa, effect size dan N-Gain. Hasil penelitian ini menunjukkan bahwa model pembelajaran Problem Solving efektif meningkatkan hasil belajar siswa kelas XI TKR 2 di SMKN 3 Bungo dimana sebesar 91,67 % siswa dinyatakan telah tuntas berdasarkan KKM.
Pengaruh Angle Attack Terhadap Luaran Generator Turbin Tipe Darrieus
Authors: Nugroho Arif Setyo , Kristiawan Y. Yulianto , Rahayu Aris Teguh 
Published: August 2023

The angle and number of wind turbine blades. The turbine used for testing is a vertical Darrieus-H type turbine with variations in the number of blades 2, 3, and 4. Blades with NACA 4415 specifications, wind speeds with variations of 4 m/s, 5 m/s, 6 m/s, 7 m/s s, and 8 m/s. The source of the wind using a fan. Variations in the angle of attack are 0o, 10o, 20o, and 30o. The blade is made of sea sengon wood. At the position of the angle of attack, 10o rotates faster due to the influence of the lifting force of the blades. The position of the blade angle of attack 0o is difficult to rotate because the blade position is straight with the wind direction. The position of the angle of attack 20o and 30o blades is difficult to rotate because the lifting force of the blades is too heavy compared to the position of the angle of attack 10o. The highest electric power is obtained from the number of blades with 2 angles of attack 10o with a power of 10.5 watts.
Penelitian ini bertujuan untuk mengetahui daya yang dihasilkan akibat pengaruh sudut dan jumlah blade turbin angin. Turbin yang digunakan pengujian adalah turbin vertikal tipe Darrieus -H dengan variasi jumlah sudu 2, 3, dan 4. Blade dengan spesifikasi NACA 4415, kecepatan angin dengan variasi 4 m/s, 5 m/s, 6 m/s , 7 m/s, dan 8 m/s. Sumber angin menggunakan kipas angin. Variasi sudut serang adalah 0o, 10o, 20o, dan 30o. Blade terbuat dari bahan kayu sengon laut. Pada posisi sudut serang 10o berputar lebih cepat karena pengaruh gaya angkat sudu. Posisi sudu sudut serang 0o sulit untuk diputar karena posisi sudu lurus dengan arah angin. Posisi sudut serang 20o dan 30o sudu sulit untuk diputar karena gaya angkat sudu terlalu berat dibandingkan dengan posisi sudut serang 10o. Daya listrik tertinggi diperoleh dari jumlah sudu dengan 2 sudut serang 10o dengan daya 10,5 watt.
Pengembangan Multimedia Interaktif Pada Pembelajaran Tematik Terpadu Kelas IV Sekolah Dasar
Authors: Khairul Nisa Nadiva , Syafril Syafril 
Published: August 2023

Penelitian ini dilatar belakangi oleh kurangnya penggunaan multimedia interaktif pada proses belajar mengajar dikarenakan tidak adanya pembaharuan terhadap media bahkan untuk beberapa materi pembelajaran, media pembelajaran tidak tersedia. Penelitian bertujuan untuk mengembangkan multimedia interaktif pada Pembelajaran Tematik Terpadu yang valid dan praktis. Penelitian ini merupakan penelitian pengembangan (R&D) dengan model pengembangan ADDIE. Hasil penelitian pengembangan media pembelajaran oleh validator media 1 diperoleh 91% dengan kategori “Sangat Valid”. Sedangkan hasil penilaian validator media 2 diperoleh 99% dengan kategori “Sangat Valid”. Dan penilaian oleh validator materi pada aspek kelayakan isi, penyajian, dan evaluasi diperoleh 93% dengan kategori “Sangat Valid” . Hasil uji praktikalitas kepada peserta didik terhadap multimedia interaktif dari aspek kemudahan penggunaan, materi, dan manfaat dapat dijelaskan bahwa penilaian yang dilakukan oleh peserta didik diperoleh hasil 96% yang dikategorikan “Sangat Praktis”. Dapat disimpulkan bahwa produk multimedia interaktif berbasis canva pada pembelajaran tematik terpadu di kelas IV Sekolah Dasar layak digunakan dalam proses pembelajaran.
Validitas Isi Instrumen Pengukuran Literasi Sejarah
Authors: Valentina Sahra Feby , Aisiah Aisiah 
Published: August 2023

Tujuan penelitian ini adalah untuk mengestimasi validitas isi instrumen pengukuran literasi sejarah. Komponen instrumen pengukuran literasi sejarah ada 2 yaitu: 1) pengetahuan sejarah, dan 2) pemahaman konsep. Jenis penelitian ini menggunakan pendekatan kuantitatif. Sumber data validitas isi instrumen berasal dari penilaian validaro yang berjumlah 5 ahli yaitu ahli materi, ahli metodologi evaluasi dan ahli Bahasa. Data validitas isi instrumen literasi sejarah dikumpulkan menggunakan lembar validasi dalam bentuk skala likert dengan empat kategori; sangat baik, baik, kurang baik dan jelek. Data skor penilaian oleh lima orang validator dianalisis dengan menggunakan formula Aiken’V. Hasil analisis validitas isi instrumen pengukuran literasi sejarah diperoleh indek sebesar 0,88 > 0,87 dengan kategori valid. Dengan demikia disimpulkan bahwa instrumen pengukuran literasi sejarah dari segi isi atau konten tergolong valid
Pengembangan Media Pembelajaran Berbasis Aplikasi Android Mata Pelajaran Pekerjaan Dasar Teknik Otomotif
Authors: Hadi Nasrul , Hendra Dani Saputra  , Hasan Maksum  , Irma Yulia Basri  , Ramdani Sulaeman Deni 
Published: August 2023

Pelaksanaan pembelajaran secara daring mengalami kendala keterbatasan jaringan selain itu juga belum adanya media pembelajaran yang dapat diakses secara luring dan daring. Tujuan penelitian ini adalah untuk menghasilkan media pembelajaran berbasis aplikasi android mata pelajaran pekerjaan dasar teknik otomotif yang valid dan pratis. Pada proses penelitian menggunakan metode research & development dengan model pengembangan ADDIE. Hasil penelitian diperoleh dari uji validitas oleh ahli dan uji praktikalitas oleh responden. Hasil dari validitas oleh ahli media diperoleh tingkat pencapaian 92% dengan kategori “sangat valid” dan ahli materi 94% “sangat valid”. Hasil praktikalitas oleh guru diperoleh 94% “sangat praktis” dan oleh peserta didik 89% ”praktis”. Berdasarkan hasil penelitian, bisa disimpulkan bahwa media pembelajaran berbasis aplikasi android yang telah dihasilkan pada penelitian ini sudah sangat valid dan praktis.
The implementation of online learning experiences problems with network limitations besides that there is also no learning media that can be accessed offline and online. The purpose of this study was to produce learning media based on android applications for valid and practical automotive engineering basic work subjects. In the research process using the research & development method with the ADDIE development model. The research results were obtained from validity tests by experts and practicality tests by respondents. The results of the validity by media experts obtained an achievement level of 92% with the category "very valid" and material experts 94% "very valid". The results of practicality by the teacher obtained 94% "very practical" and by students 89% "practical". Based on the results of the research, it can be interpreted that the android application-based learning media that has been produced in this study is very valid and practical.
Transformation Processes of Fisheries Cultural Landscape on Kurzeme Coast
Authors: Ržepicka Dace , Ziemeļniece Aija 
Published: August 2023

Abstract
The cultural landscapes of the Baltic Sea coast in Rucava and Nica parishes consist of ancient fishing villages, lighthouses, natural objects such as seashore, dunes, pine groves, meadows, and others. They have been affected by transformation, especially in recent decades. During coastal surveys in 2019 and 2021, photo fixations, research of historical documents, interviews were carried out and it was found that cultural landscapes are losing quality under the influence of political, social and natural factors, especially coastal erosion. The aim of this work is to study the transformation processes affecting the landscape.
Reliability of a self-report questionnaire to assess parents’ postural knowledge
Authors: Rajabi Reza , Olszewska Elżbieta , Jankowicz-Szymańska Agnieszka , Rajabi Farhad , Labecka Marta Kinga 
Published: August 2023

Abstract
Study aim: To develop a reliable and valid questionnaire to assess parents’ postural knowledge.
Material and methods: This questionnaire was conducted on 30 Iranian parents. The questionnaire assessed knowledge of abnormalities in body posture and ergonomic knowledge of parents, which were in line with their postural knowledge. The kappa coefficient (test–retest reliability) of the questionnaire included assessing its stability over 1 week among 30 participants. The validity of the content of the questionnaire was checked and agreed upon by three experts from three different institutions.
Results: The kappa coefficient for 19 questions and their 46 sub-questions ranged from 0.30 to 1. Out of these items, 89% (n = 41) had a value of 0.6 or above and 11% (n = 5) were below 0.6. Questions were categorized as “no change expected” (0.86÷1), “change unlikely” (0.68÷1), and “change likely” (0.30÷0.68).
Conclusions: The Parent’s Postural Knowledge Questionnaire was found to be highly reliable and its contents relevant for the assessment of postural knowledge among Iranian parents. This tool is appropriate for studying larger populations in the variable of interest.
Preventable Hazards from in Vitro Fertilization – A Case Series of CF Patients from Bulgaria
Authors: Yaneva N , Baycheva M , Kostova P , Papochieva V , Mileva S , Miteva D , Savov A , Petrova G 
Published: August 2023

Abstract
Pre-implantation genetic diagnosis (PGD) is not often performed when donor gametes are used, due to its high cost. This is with the presumption that the donors are healthy.
We report on five cases of babies with confirmed cystic fibrosis (CF), being the result from in vitro fertilization (IVF) with donor (4 cases) or own gametes (one case). There has been no family history for CF in any of the families affected. The clinical presentation in the children ranged from meconium ileus to recurrent respiratory infections and severe nasal polyposis. The age of diagnosis also varied from birth until 9 years.
Since one of the presented cases was discovered in a very renowned private IVF clinic, the clinic changed their own protocol, and currently they test every donor for CF carriership. The percentage of CF carriers in the donor population is roughly the same as the one predicted in the general population of Bulgaria – 1/33.
Although PGD is costly, the costs for proper care for a CF patient are currently much higher. The more economical option would to screen every donor for CF carriership.
IVF requires a lot of physical and psychological stamina. The couples that go through this procedure also require a great deal of hope. It is essential to be more preconscious for possible congenital diseases.
We advocate every IVF center to test the donors for CF carriership or to provide PGD for their clients.
Employers’ Expectations of University Graduates as They Transition into the Workplace
Authors: Cheang Michael , Yamashita Georgia Lynn 
Published: August 2023

Abstract
Research on work readiness indicates employers are increasingly pointing out that soft skills are as important as discipline specific knowledge and technical skills when hiring recent university graduates. However, many university students think excellent grades are the main reason they get the jobs. The disconnect between what employers expect and what students imagine is significant to the extent that many recent university graduates are unable to be employed in the jobs they want, and many employers have challenges dealing with recent university graduates who are not work ready. In 2018, a soft skills pilot study was conducted with internship supervisors who work with the Human Development and Family Studies Program at the University of Hawaii at Manoa. An online survey was sent to 65 internship supervisors, and three focus group sessions were conducted as a follow-up of the survey. In 2019, Phase 2 of this study polled 76 employers who participated in a university career fair on what soft skills they expect university graduates to have at the time of hiring. This paper reports on findings to two questions: 1) What employers think of undergraduate university students who have completed an internship with them, and 2) What soft skills employers expect of recent university graduates who are transitioning into the workplace. Findings indicate that in addition to soft skills, employers also regard personal attributes and qualities as equally important at the time of hire.
Biographical Narratives in Teaching: a Study of Professors on Postgraduate Courses
Authors: e Silva Ana Maria Costa , Aparício Miriam 
Published: August 2023

Abstract
Literature and research have shown that professional development constitutes an essential dimension in constructing both work and professional identity. An important aspect in such development is training. In the field of adult education, different authors (Pratt, 1993; Mezirow, 1985; Schön, 1996; Silva, 2007) emphasize the importance of placing trainees at the center of the learning and cognitive processes and within their corresponding social and historical contexts. Training is supported by a comprehensive adult learning theory. Therefore, the acquired knowledge is not only the result of an external and objective reality but also of a complex construction in which the appropriation of experience plays a relevant role. This paper reveals the findings obtained through biographical narratives in a five-year work program with teachers at different levels (from pre-school to higher education) on postgraduate courses. The core issue is the importance of biographical narratives, as an identification strategy for personal experience, knowledge construction and professional identity. This strategy provided the opportunity for recognition of practical experience, as a provider of learning, as well as his/her own authorship, which are important conditions in the understanding of professional identity.
Attaining a Beam-Like Behavior with FRP Strips and CAM Ribbons
Authors: Ferretti Elena 
Published: August 2023

Abstract
One of the major concerns in the seismic retrofitting of masonry walls is that of increasing the ultimate load for out-of-plane forces. In multi-story buildings, these forces may originate from the hammering actions of floors, when the earthquake direction is orthogonal to the wall. A possibility for counteracting the out-of-plane displacements is retaining the wall by building some buttresses, that is, some beams lean against the wall and disposed vertically. Another possibility is to make the buttress in the thickness of the wall. In this second case, we must cut the wall for its entire height, realize the buttress, and restore the masonry wall around it. In both cases, the interventions are highly invasive. The first intervention also leads to increments of mass that enhance the attraction of seismic forces. The aim of this paper is to find a less invasive and lighter alternative for realizing buttresses. We proposed to use FRP strips and steel ribbons in a combined fashion, so as to realize an ideal vertical I-beam embedded into the wall, without requiring to cut the masonry. We also provided some experimental results for verifying the effectiveness of the model.
Technology, Users, and Sustainable Social Housing
Authors: Johansson Jan 
Published: August 2023

Abstract
This paper aims to contribute with results in relation to the challenges that users encounter with regard to technologies in sustainable social housing. The results are significant and show that in modern Danish sustainable social housing consideration is not taken for the users in relation to the technologies implemented in the buildings. The consequences are that the intentions of the technologies supporting economic, environmental, and social sustainability do not work for the users when the buildings are taken into use. The paper argues that developers and architectural practice should in future use simpler technologies that give residents the opportunity to individually regulate their homes’ indoor climate. At the same time, architecture and technology should reflect the consideration towards the climate in the local context and the users’ funda-mental living conditions. The paper argues for the development of a more user-oriented architecture, where the interaction between architecture and technology can work for the users and to a greater extent support the intentions with regard to sustainability.
Careers, Identities and Professionalization. a Study on Doctors about Their Social Representations Related to the Labor Market Today and its Foreseeable Future
Authors: Aparicio Miriam , Silva Ana Maria Costa e 
Published: August 2023

Abstract
This study is in line with the analyses of university and working career in their interaction in relation with conditioning factors. It comprises two central issues: the issue of identity bound to the issue of professionalization within the domain of training and employment. Nowadays, professionalization of the individuals, inside a troubled occupational world, demands the implementation of mechanisms favoring the development of both the individuals and the institution in which they work. All this has an impact at the local, regional and even national levels. Three levels of analysis interplay from a sui generis perspective: macro-meso-micro-macro (Aparicio, 2005; 2007a; 2007b, 2013a, 2014, 2015 b, d – See the Three- Dimensional Spiral of Sense Theory). The aim was to be aware of the doctors’ representations regarding the value of such degree under the present “degree devaluation”, and its impact on the professional future as well as on the core issues of the labor market which need urgent measures with a view to a belter interaction between the two systems. The methodology used was quanti-qualitative (semi-structured questionnaires, interviews, and hierarchical evocations). The population consisted of doctors (2005-2012) from the National University of Cuyo, in Argentina. The results helped us understand the nucleus of such representations and the peripheral aspects by career and institution, thus revealing professional and disciplinary identities. The professional identities show the situated needs in terms of professionalization within the different contexts and, particularly, within the labor market.
The choice of pseudoscientific therapies as an alternative to scientific medicine
Authors: Rovira Sergi Cortiñas , Raffio Valentina 
Published: August 2023

Abstract
During the last decades, there has been an increasing interest in the analysis of a potentially dangerous phenomenon for the public health: pseudoscience. It can be defined as the set of false knowledge that attempts to resemble science even though it is not. Nowadays there are many who opt for these therapies not scientifically endorsed to solve their health problems. This situation is increased for risk patients or chronic diseases, who come to this type of therapies as a last resort. In these cases, the choice between science and pseudoscience can become a matter of life or death. Through qualitative and quantitative research techniques, we analyze the reasons why patients choose pseudoscience instead of conventional and scientific medicine. The data obtained from this research reveal that in extreme situations patients value most the human contact with the therapist that the validity of the therapy itself. This factor, coupled with the precariousness of the health system, generates a dynamic in which pseudosciences gain ground over scientific medicine. According to the experts interviewed, this phenomenon is increasing and may represent a danger to public health. This research reveals the possible causes and consequences of this phenomenon from the point of view of more than 60 professionals of the Spanish scientific community and 30 patients who have used both disciplines. The results obtained indicate that this situation is intensified due to the inaction of the competent institutions and the lack of regulation.