bluuebunny/crossref_metadata_2025_split huggingface dataset:
LABORATORY AND OPERATING TESTING OF HIGH-ALLOY STEEL PIPES MADE BY THE LATEST TECHNOLOGIES
Authors: DERHACH T.O. , SUKHOMLYN H.D. , DEINEKO L.M. , BALEV A.Ye. , KRASIUK A.V. 
Published: November 2022

The purpose of the research: evaluation of the quality and durability for pipes made of high-alloyed austenitic and ferritic-austenitic steels, which are manufactured at PJSC "CENTRAVIS PRODUCTION UKRAINE" using the latest technologies, by conducting complex laboratory studies and long-term operational tests at chemical industry enterprises. Materials and methods: the research materials were experimental pipes made of high-alloyed austenitic and ferritic-austenitic chromium-nickel-molybdenum steels of the new generation, manufactured using the latest technologies. The microstructure of the pipes was investigated by metallography and electron microscopy using developed and improved methods. Corrosive researches in laboratory terms included a test on firmness against the local types of corrosion inherent in high-alloy steels: intergranular corrosion (IGC), pitting corrosion (PC), corrosion cracking (CC) and sulfide stress corrosion cracking (SSCC). The mechanical properties of the pipes were determined by tensile and impact bending tests. Long-term operational tests of pipes were carried out in conditions of industrial production at chemical industry enterprises in apparatus for the urea and caustic soda production. Research results: A high content of special low-energy grain boundaries in the theory of coincident nodes’ lattices (SG CSL) was established in the structure of pipes manufactured according to the latest technologies (≥ 75 %); high resistance of pipes against various types of the most dangerous local corrosion compared to existing analogues, a high level of mechanical properties, as well as high corrosion resistance during long-term operational tests in environments at chemical industry enterprises. The implementation of the obtained results will contribute to increasing the efficiency of production and operation for highly alloyed steel pipes in demand on the world market and increasing the competitiveness of domestically produced pipes on the European and world markets.
PENGARUH COVID-19 TERHADAP KELELAHAN KERJA DI PERUSAHAAN X
Authors: Putro Agnisyah Sutoyo Putro , Susilowati Indri Hapsari 
Published: November 2022

The workers in the PT.X construction project have high work hazards and risks, especially in the face of the COVID-19 pandemic. Because construction projects are projects that must continue, the risk of workers being exposed to COVID-19 is high. If there are workers who are exposed to COVID-19, then directly or indirectly the work carried out by the worker will be replaced/backed up by his co-workers. So this can cause fatigue in construction workers. Work fatigue is one of the causes of work accidents. Fatigue can reduce the concentration of workers, reduce decision-making abilities, reduce work/muscle strength, communication skills, productivity, alertness and physical and mental performance and reduce work motivation. The purpose of this study was to determine the effect of Covid-19 on worker fatigue in the Company. The population in this study were 353 workers at PT.X with inclusion criteria being workers who worked overtime and who replaced their colleagues' work in the last 1 month and exclusion criteria were workers who never worked overtime and replaced their co-workers as many as 55 workers were analyzed univariately and bivariately with simple linear regression analysis model. The results showed that the COVID-19 pandemic had an effect on fatigue among workers at PT X. A significant variable was the age of workers, who worked > 8 hours a day, length of work > 5 years and less rest time, causing fatigue to worker.
Keywords: Covid-19, Fatigue, Workers
FAKTOR YANG BERHUBUNGAN DENGAN KUALITAS BIOLOGIS AIR MINUM ISI ULANG: LITERATURE REVIEW
Authors: Suryani Adelia , Kusumayati Agustin 
Published: November 2022

Pemenuhan kebutuhan air yang aman dikonsumsi merupakan hal penting untuk diperhatikan. Ketika masyarakat mengonsumsi air tercemar, dapat menimbulkan water borne disease. Air minum isi ulang adalah pilihan masyarakat umum, dikarenakan lebih praktis dan ekonomis. Faktanya masih banyak air minum isi ulang yang tidak memenuhi syarat dan berisiko mengganggu kesehatan. Tujuan penelitian adalah mencari tahu berbagai faktor yang memiliki hubungan dengan kualitas biologis air minum isi ulang. Penelitian ini tergolong sebagai literature review, dengan portal penelusuran berupa Google Scholar, Science Direct dan ProQuest. Kriteria inklusi berupa literatur terpublikasi pada rentang 2017-2022, dapat diakses, full text, berbahasa Indonesia atau Inggris dan berformat artikel atau tugas akhir yang dipublikasikan. Kriteria eksklusi yaitu duplikasi dan tidak sesuai dengan kata kunci. Kata kunci penelitian berupa faktor-faktor, hubungan, air minum isi ulang serta kualitas biologis. Terdapat 12 literatur yang sesuai dengan kriteria inklusi dan eksklusi. Berbagai faktor yang memiliki hubungan bermakna dengan kualitas biologis air minum isi ulang di antaranya faktor tempat seperti lokasi depot, ketersediaan tempat sampah, ruang pengisian, sanitasi peralatan seperti alat sterilisasi, perilaku higiene penjamah berupa mencuci tangan dan penggunaan pakaian kerja, pemilihan sumber air baku, pembinaan dan pengawasan depot, proses pengelolaan, penerapan SOP dan pemeriksaan bakteriologi air.
Structural, electronic and optical properties of the wide band gap semiconductors KGaQ2 (Q = S, Se) and of AGaTe2 (A = K, Cs)
Authors: Benmekideche N. , Fetah Sabah , Belgoumri Gh. , Bentabet A. , Benmakhlouf A. 
Published: November 2022

In this paper, we studied the structural, electronic and some optical properties of KGaQ2 (Q = S, Se) and AGaTe2 (A = K, Cs) crystals using the pseudopotential plane-wave (PP-PW) method based on density functional theory (DFT), the generalized gradient approximation (GGA) parameterized by Perdew-Burke-Ernzerhof (GGA-PBE) is used for the exchange – correlation (XC) potential. We also use the hybrid density functional (HSE06) to study the electronic structures of these materials. Our results for the equilibrium lattice constants (a, b and c), angle β are in good agreement with experiment data. The electronic structure calculation suggested that crystals are direct-gap semiconductors, employing both the Perdew–Burke–Ernzerhof (PBE) and the hybrid (HSE06) functionals. We note that the hybrid density functional improved the value of band gap, and that the studied compounds are semiconductors with wide band gaps. We have also predicted the optical properties; the refractive index, the reflection coefficient and dielectric constant on high frequencies.
10 years later: Revisiting Seto’s (2012) conceptualization of orientation to sexual maturity among pedohebephilic persons
Authors: Mundy Crystal L. 
Published: November 2022

Emerging research has examined the experiences of individuals who are sexually attracted to children. This study collected both quantitative and qualitative data from individuals with self-identified pedohebephilic attractions ( n = 116). Several analyses were used to assess whether the sample characteristics followed Seto’s (2012) conceptual outline of pedophilia as an orientation to sexual maturity. The three developmental characteristics of gender-based sexual orientation were explored using survey and interview data. Overlapping patterns with relation to the age of onset, expressions of both sexual and romantic attractions, and stability of such attraction over time were found. As noted by researchers and clinicians in this area, there are clear clinical implications associated with a shift in the conceptualization of sexual attraction to children. Such etiological conceptualizations are often poorly understood and/or conflated with sociocultural understandings and reactions. Despite resistance to such conceptualizations, the findings indicate that orientation to sexual maturity closely mirrors the developmental trajectory of gender sexual orientation, as outlined in Seto’s seminal paper.
SÍNTESE DE HIDROCARVÃO A PARTIR DA CASCA DO FRUTO DE BOCAIUVA E SUA APLICAÇÃO NA REMOÇÃO DE DIURON DE ÁGUA CONTAMINADA
Authors: Magalhães Tairine Fernanda da Silva , Barbosa Aline Gonçalves , Golin Rossean , Terezo Ailton José , Vasconcelos Leonardo Gomes de , Morais Eduardo Beraldo de 
Published: November 2022

Neste estudo, hidrocarvão foi sintetizado a partir da casca do fruto da bocaiuva e aplicado na remoção de diuron de água contaminada por meio do processo de adsorção. A influência do pH inicial da solução, concentração do hidrocarvão, tempo de contato e temperatura no processo de adsorção foram avaliados. O modelo cinético de pseudossegunda ordem e o modelo de isoterma de Langmuir forneceram os melhores ajustes aos dados de adsorção. A capacidade máxima de adsorção foi estimada em 10,06 mg g-1, em pH 4,0 e 30 °C. A energia de ativação calculada pelo modelo de isoterma de Dubinin-Radushkevich foi de 7,805 kJ mol-1, indicando que um processo físico é responsável pela adsorção do diuron no hidrocarvão. Os parâmetros termodinâmicos (ΔH < 0 e ΔG > 0) sugeriram que o processo de adsorção é exotérmico e não espontâneo. Os resultados indicaram que o hidrocarvão derivado da casca do fruto da bocaiuva pode ser um adsorvente alternativo para a remoção de diuron de água.
Palavras-chave: adsorção; cinética; modelos de isotermas; estudo termodinâmico.

Hydrochar synthesis using bocaiuva fruit peel and its application in diuron removal from contaminated water

ABSTRACT: In this study, hydrochar was synthesized using bocaiuva fruit peel for application in diuron removal from contaminated water through adsorption. The influence of the initial pH of the solution, hydrochar concentration, contact time, and temperature on the adsorption process were evaluated. The pseudo-second order kinetic model and the Langmuir isotherm model provided the best fits to the adsorption data. The maximum adsorption capacity was estimated at 10.06 mg g-1, at pH 4.0 and 30 °C. The activation energy calculated by the Dubinin-Radushkevich isotherm model was 7.805 kJ mol-1, indicating that a physical process is responsible for the adsorption of diuron on hydrochar. The thermodynamic parameters (ΔH < 0 and ΔG > 0) suggested that the adsorption process is exothermic and not spontaneous. The results indicated that hydrochar could be an alternative adsorbent for removing diuron from water.
Keywords: adsorption; kinetic; isotherms models; thermodynamic studies.
Altered brain network centrality in Parkinson’s disease patients after deep brain stimulation: a functional MRI study using a voxel-wise degree centrality approach
Authors: Luo Bei , Qiu Chang , Chang Lei , Lu Yue , Dong Wenwen , Liu Dongming , Xue Chen , Yan Jun , Zhang Wenbin 
Published: November 2022

OBJECTIVE
After deep brain stimulation (DBS), patients with Parkinson’s disease (PD) show improved motor symptoms and decreased verbal fluency, an effect that occurs before the initiation of DBS in the subthalamic nucleus. However, the underlying mechanism remains unclear. This study aimed to evaluate the effects of DBS on whole-brain degree centrality (DC) and seed-based functional connectivity (FC) in PD patients.

METHODS
The authors obtained resting-state functional MRI data of 28 PD patients before and after DBS surgery. All patients underwent MRI scans in the off-stimulation state. The DC method was used to evaluate the effects of DBS on whole-brain FC at the voxel level. Seed-based FC analysis was used to examine network function changes after DBS.

RESULTS
After DBS surgery, PD patients showed significantly weaker DC values in the left middle temporal gyrus, left supramarginal gyrus, and left middle frontal gyrus, but significantly stronger DC values in the midbrain, left precuneus, and right precentral gyrus. FC analysis revealed decreased FC values within the default mode network (DMN).

CONCLUSIONS
This study demonstrated that the DC of DMN-related brain regions decreased in PD patients after DBS surgery, whereas the DC of the motor cortex increased. These findings provide new evidence for the neural effects of DBS on voxel-based whole-brain networks in PD patients.
PENDEKATAN NEUROSAINS DALAM STRATEGI PEMBELAJARANUNTUK SISWA SLOW LEARNER
Authors: Teti Sumiati  , Septi Gumiandari  
Published: November 2022

Siswa slow learner adalah siswa berkebutuhan khusus yang mengalami keterlambatan dalam belajar. Penelitian ini bertujuan untuk mengetahui hubungan antara neurosainsdalam strategi pembelajaran terhadap siswa slow learner dan metode pembelajaran terbaik bagi slow learner perspektif neurosains. Metode penelitian dilakukan dengan kajian literatur yang diperoleh dari google scholardari tahun 2012-2022 dengan key word slow learner dan neurosains. Hasil pencarian diperoleh sebanyak 34 artikel. Artikel-artikel tersebut kemudian dipilah lagi menjadi sebanyak 20 artikel yang secara khusus membahas slow learner, dan neurosains. Artikel lainnya tidak dipilih karena banyak membicarakan terkait pendidikan inklusi.Setelah ditelaah, artikel-artikel tersebut dianalisa kemudian disimpulkan. Hasil penelitian ini menunjukkan bahwa terdapat hubungan antara optimalisasi peran otak dalam penerapan strategi pembelajaran pada siswa slow learner dalam pencapaian tujuan pendidikan.Pembelajaran berbasis neurosainsterbukti efektif membangkitkan motivasi dan prestasi belajar siswa slow learner denganmemberikan stimulus yang tepat. Metode yang sesuai dengan strategi pembelajaran berbasis neurosains, diantaranya dengan musik, pencahayaan, tat ruang, art terapy, permainan, fun learning, pembelajaran berbasis masalah, cooperative learning,metode shaw, serta hypno teaching. Sedangkan strategi yang digunakan sebaiknya memuat beberapa macam strategi dengan penekanan kepada apersepsi, alfa zone, musik dan scene setting.
Kebijakan Paten Melalui Penguatan Perlindungan Invensi Teknologi dan Peningkatan Kemampuan Inovasi
Authors: Purwaningsih Endang , Nur Ariyanti Evie Rachmawati 
Published: November 2022

Latar belakang lahirnya Undang-Undang Nomor 13 tahun 2016 Tentang Paten salah satunya ingin memajukan teknologi dan mewujudkan kemandirian teknologi Indonesia, diperlukan kebijakan yang mendukung penguatan perlindungan invensi di bidang teknologi dan kemampuan berinovasi, guna menumbuhkan iklim kondusif. Tujuan penelitian ini adalah mengkaji kebijakan Paten Indonesia dalam upaya menguatkan perlindungan hukum invensi teknologi dan kebijakan Paten Indonesia dalam meningkatkan kemampuan inovasi. Penelitian ini termasuk dalam penelitian normatif terapan atau penelitian normatif empiris yakni menekankan pada data sekunder didukung hasil pengamatan dan wawancara dengan ahli HKI serta institusi terkait yakni Direktorat Jenderal Kekayaan Intelektual Kementerian Hukum dan HAM RI; inventor dan pelaku UMKM. Berdasarkan hasil penelitian, UU Paten khususnya Pasal 20 tentang kewajiban untuk melaksanakan paten di Indonesia telah dikuatkan dengan lahirnya UU Cipta Kerja, jadi pelaksanaan Paten harus dilakukan di Indonesia sekaligus supaya friendly terhadap investasi. Bagi UKM dan Perguruan Tinggi digiatkan sosialisasi dan fasilitasi. bagi invensi hasil UMKM, perguruan tinggi dan Litbang terdapat insentif 5 tahun pertama gratis/prodeo tidak membayar biaya tahunan sesuai dengan PermenkumHAM nomor 20 tahun 2020, juga untuk tahun ke-6 dan seterusnya jika memang ternyata paten tersebut belum komersial. Perlu harmonisasi regulasi dan sinergitas stakeholder baik di daerah maupun pusat, industri, kampus, peneliti, maupun UMKM untuk protect and promo. Ditjen KI terus menerus melakukan sosialisasi ke seluruh penjuru tanah air, membantu dan mendorong hasil riset Perguruan Tinggi dan litbang, mendayagunakan fasilitasi bagi invensi UMKM.
MINAT BELAJAR SISWA TERHADAP PEMBELAJARAN BIOLOGI DENGAN MENGGUNAKAN MEDIA POWERPOINT
Authors: Fernandez Vandi , Tunnisa Liza Fadillah , Aulia Nur Rahmatul , Hidayati Nurkhairo 
Published: November 2022

Pembelajaran akan dapat dipahami apabila siswa memiliki minat terhadap mata pelajaran yang dipelajarinya, termasuk biologi. Minat belajar siswa dapat dipengaruhi oleh penggunaan media pembelajaran. Tujuan penelitian adalah mengetahui minat belajar siswa kelas XII MIPA SMAN 1 Ujung Batu terhadap mata pelajaran biologi dengan menggunakan media powerpoint. Penelitian ini merupakan jenis survei dengan instrumen berupa angket yang diberikan kepada siswa melalui google form berisi 30 item pernyataan. Indikator minat pada angket adalah kesenangan, ketertarikan, perhatian, dan keterlibatan siswa pada mata pelajaran biologi. Analisis data dilakukan dengan cara menghitung skor angket masing-masing siswa, kemudian menjadikannya dalam persentase dan diinterpretasi dengan kategori sangat baik, baik, kurang baik, dan tidak baik. Hasil penelitian menunjukkan indikator kesenangan siswa sebesar 66,37%, ketertarikan siswa sebesar 72,43%, perhatian siswa sebesar 73,62%, dan keterlibatan siswa 79%. Penelitian ini pada akhirnya menghasilkan simpulan bahwa 72,85% siswa memiliki minat yang dikategorikan baik selama mengikuti proses pembelajaran biologi dengan menggunakan media powerpoint. Keterlibatan siswa pada mata pelajaran biologi adalah indikator paling tinggi (sangat baik) karena ketika guru menayangkan media powerpoint dan terdapat point materi yang tidak dipahami siswa, maka siswa akan berusaha membacanya berulang kali dan menanyakan kepada guru. Learning will be understood if students have an interest in the subjects they are studying, including biology. Students' interest in learning can be influenced by the use of learning media. The purpose of the study was to determine the learning interest of class XII MIPA students of SMAN 1 Ujung Batu towards biology subjects using powerpoint media. This study was a type of survey with an instrument in the form of a questionnaire that given to students via a google form containing 30 statement items. The indicators of interest in the questionnaire were the students' enjoyment, interest, attention, and involvement in biology subjects. Data analysis was carried out by calculating the score of each student's questionnaire, then making it a percentage and interpreting it with categories of very good, good, less good, and not good.The results showed that the indicators of students’ enjoyment was 66.37%, students’ interest was 72.43%, students’ attention was 73.62%, and students’ involvement was 79%. This study ultimately resulted in the conclusion that 72.85% of students had good interest during the biology learning process using powerpoint media. The involvement of students in biology was the highest indicator (very good) because when the teacher showed the powerpoint media and there were material points that the students did not understand, the students would try to read it repeatedly and ask the teacher.
Análisis de la ejecución presupuestal de proyectos de inversión pública de tres universidades nacionales de Lima, 2017
Authors: Panez-Santa Cruz Jackelyne , Cáceres-Cayllahua Elvira , Antonio-Vargas Javier , Callohuanca-Aceituno Jimmy 
Published: November 2022

El presente artículo analiza y compara la ejecución presupuestal de 98 proyectos de inversión pública de tres universidades en la ciudad de Lima año 2016; con enfoque cuantitativo, descriptivo comparativo no experimental de corte transversal, basado en el análisis documental digital de acceso público. Estos proyectos de inversión pública (PIP) se evaluaron en 5 dimensiones: tipo de administración, costo del proyecto, tipo de evaluadora, modificaciones de costo y años desde su viabilidad. Los resultados mostraron que en cuanto al nivel de ejecución presupuestal, solo el 41,8 % de los proyectos alcanzaron una calificación de muy bueno y 8,2 % una calificación de bueno. Asimismo, el 80% de los proyectos fueron ejecutados por administración directa y la mayoría de los proyectos tuvieron un costo entre1.2 y 10 millones de soles. Se concluye que el nivel de ejecución presupuestal de proyectos de inversión fue deficiente, que predominó la ejecución por administración directa con un 80%, que la evaluación de los proyectos se dio mayoritariamente por las OPI’s internas, que el 61% de los proyectos tuvo modificaciones en sus costos y que en su mayoría, hay proyectos con más de tres años desde la declaración de su viabilidad. Se recomienda la socialización de experiencias entre este tipo de instituciones a fin de optimizar la ejecución de proyectos.

Palabras clave: Proyectos de inversión pública, ejecución presupuestal, costos de proyecto, evaluación de proyectos.
Validitas Multimedia Interaktif Lectora Inspire pada Submateri Pemanfaatan Keanekaragaman Hayati Berbasis Tumbuhan Kerajinan
Authors: Febiola Anggie , Syamswisna Syamswisna , Tenriawaru Andi Besse 
Published: November 2022

In assessing the availability of the local potentials, learning biology has a vital role. By the support of interactive multimedia, the delivery of materials and a sense of caring for the environment can be built by students easily. This research aims to find out the feasibility of interactive multimedia lectora inspire as a learning media in biodiversity sub-material. Research methods use quantitative descriptive and data analysis using RTVTK calculations. Lectora inspire validation is conducted by three material experts with three aspects and 11 assessment criteria and three media experts with six aspects and 13 assessment criteria. Validation results get an average of total validation (RTVTK) material experts of 3.89 and media experts of 3.65. The interactive multimedia Lectora inspires the sub-material of the use of biodiversity for class X HIgh School is considered appropriate to be used as learning media.
Rancang Bangun Monitoring Akuarium Dan Pakan Ikan Otomatis Berbasis Internet Of Things (IOT)
Authors: Burhani Firman , Zaenurrohman Zaenurrohman , Purwiyanto Purwiyanto 
Published: November 2022

Dalam memelihara ikan hias dalam akuarium merupakan kegiatan yang cukup di tekuni oleh masyarakat dan menjadi sebuah hobi. Dalam memelihara ikan hias juga dapat mengutungkan dari segi ekonomi, ada beberapa ikan hias yang memiliki nilai jual yang cukup tinggi. Ketika kita memelihara ikan hias juga harus memperhatikan cara merawat ikan hias yang kita pelihara. Cara merawat ikan hias salah satunya dalam pemberian pakan ikan secara berkala dan memperhatikan air di dalam akuarium. Alat monitoring akuarium dan pemberi pakan ikan otomatis berbasis IOT telah dirancang untuk memudahkan pekerjaan perawatan dalam merawat ikan hias. alat ini menggunakan beberapa sensor yaitu sensor turbidity sebagai monitoring kejernihan air didalam akuarium, sensor Ultrasonik sebagai monitoring pakan di dalam wadah pakan ikan. Beberapa komponen lainya seperti RTC sebagai penentu waktu nyata, lalu ada motor servo sebagai pembuka dan penutup pakan ikan, dan LCD sebagai penampil hasil data kejerihan dan penampil data jarak pakan ikan. BLYNK digunakan untuk monitoring nilai kejernihan air, monitoring jarak pakan ikan. Selain itu juga untuk mengatur waktu makan ikan. Fungsi dari aplikasi BLYNK ini juga sebagai pemeberitahuan kejernihan air dan kapasitas pakan. Dari hasil pengujian diketahui bahwa nilai kejernihan air di dalam akuarium dan nilai jarak pakan ikan dapat dimonitoring melalui aplikasi BLYNK dengan baik. Jadwal otomatis pakan ikan bekerja sesuai setting jadwal pakan. Kata Kunci : IOT, sensor Ultrasonik, sensor turbidity, Motor servo, BLYNK