bluuebunny/crossref_metadata_2025 huggingface dataset:
Synthesis of 2-BMIDA indoles via heteroannulation: Applications in drug scaffold and natural product synthesis
Authors: Bell George , Fyfe James , Israel Eva , Slawin Alexandra , Campbell Matthew , Watson Allan
Published: March 2022

A Pd-catalyzed heteroannulation approach for the synthesis of C2 borylated indoles is reported. The process allows access to highly functionalized 2-borylated indole scaffolds with complete control of regioselectivity. The utility of the process is demonstrated in the synthesis of borylated sulfa drugs and in the concise synthesis of the Aspidosperma alkaloid Goniomi-tine.
Synthesis and target annotation of GB18
Authors: Woo Stone , Shenvi Ryan
Published: March 2022

Ingestion of alkaloid metabolites from the bark of Galbulimima (GB) sp. leads to psychotropic and excitatory effects in humans. Only a single target, the muscarinic acetylcholine receptor, has been assigned. Limited, variable supply of GB alkaloids has im-peded their biological exploration and clinical development. Here we report a solution to the supply of GB18, a structural outlier and putative psychotropic principle of Galbulimima bark. Efficient access to the challenging tetrahedral attached-ring motif re-quired the development of a ligand-controlled endo-selective cross-electrophile coupling and a diastereoselective hydrogenation of a rotationally-dynamic pyridine. Reliable, gram-scale access to GB18 allowed its assignment as a potent antagonist of kappa- and mu- opioid receptors and lay the foundation to navigate and understand the biological activity of Galbulimima metabolites.
The Limits of Memory and the News: Archival Journalism, Law, Ethics, and the Right to be Forgotten
Authors: Cetina Presuel Rodrigo , Gutiérrez Atala Fernando José
Published: March 2022

The right to be forgotten has been widely discussed from a legal perspective. Courts have analyzed the existence and constitutional compatibility of the right in the national legal order of several jurisdictions around the world. However, even if the right to be forgotten is not a universally recognized right, by understanding how the law approaches tensions that arise between the right to freedom of expression and the rights to seek, impart and receive information, on one hand, and a right to be forgotten, underpinned by the rights to honor, privacy and personal data protection on the other, journalists can extract ethical guidelines that can orient them in the correct use of archival information about individuals to report on current events. This work begins by explaining how legal debates can help inform ethical discussions about journalism. Then, by exploring the legal development and justifications for the right to be forgotten and identifying key elements of this emerging right, we engage in a discussion around the use of archives and memory in journalism and then identify the elements that journalists should consider in relation to the use of archival information in their profession in a way that allows them to fulfill their journalistic duties without ignoring the legal context.
Phytosomes - An emerging approach for effective management of Dermatological Disorder
Authors: Deepti Dwivedi  , Alok Kumar Shukla  , Satya Prakash Singh
Published: March 2022

The word ”Phyto” means plant, and also sometimes, it can be signified as cell- like. The development of phytosomes produces a little cell by itself, by which the active ingredient of the herbal extracts is protected from the intestinal secretions and instinctive bacteria destruction. The introduction of phyto- somes into herbal formulation is very recent and useful because they have advanced bioavailability, and they are better absorbed. Also, they consume this enhanced ability to cross lipid-rich bio membranes to finally reach the blood. Phytosomes can also be defined as complex chemical mixtures which are formulated by countering more than one mole synthetic or natural phos- pholipids phosphatidyl ethanolamine or phosphatidylserines with the one mole of another component. There are various plants materials which can be merged in the process of phytosomes, such as several herbal extracts includ- ing quercetin, grape seed, Rhein, neem, green tea, aloe vera, marigold and ginseng. The bioavailability of phytosomes further as linked to conventional herbal extracts because it has enhanced capability to penetrate the lipid bio membrane to finally reach the systemic blood circulation. Phytosomes has been categorized as a novel line for herbal drug delivery. Various conven- tional dosage forms such as gels and creams remained expressed using these constituents, but they appeared to be a better dermatological effect. Hence, phytosomes were formulated by binding phosphatidylcholine (acts as a trans- porter and protect the skin) and herbal extracts. They consist of a phospho- lipid molecular structure which includes two fat-soluble tails and a water- soluble head, and because of its dual solubility, it was absorbed better and was also used for the treatment of skin carcinomas, antiaging and skin disorders.
Сomparative analysis of methods for calculating stamp modules of soil deformation
Authors: Prolygin A. S. , Kalinin A. L. , Aleksandrov A. S. , Aleksandrova N. P.
Published: March 2022

Introduction. The purpose of the article is a comparative analysis of methods for calculating stamp modules of soil deformation regulated by various standards of the Russian Federation.Materials and methods. The experimental determination of the deformation modules for the soil of the roadbed was performed using stamp tests. The tests were carried out in a soil tray by loading and unloading a soil base compacted to the required compaction coefficient of 0.98. The load was applied by steps, and the stamp draft was measured after completion of deformation stabilization from each step. The criterion for stabilizing the deformation was a decrease in the speed to 0.02 mm / min and the time of application of the load, which should be at least 120 s. After measuring the elasto-plastic draft of the soil, the model was unloaded. Unloading is also carried out by steps. As a result, the dependences of the elasto-plastic and elastic draft of the soil model of the roadbed from the pressure in the form of hysteresis loops are constructed.Results. The calculations of the soil deformation modulus were performed according to the various methods regulated by the standards of the Russian Federation. The calculation results are grouped into data samples that are processed by mathematical statistics methods. When processing data, each sample is checked for the presence of gross errors. The data samples are checked for belonging to one general population. To check whether three samples belong to one general population, the Kruskal W. H. and Wallis W. A. criterion was applied. Based on this comparison, we made judgments about the significance of differences in the samples.Discussion and conclusions. To determine the deformation modulus of soil and road pavements made of granular materials, a method for calculating the modulus of deformation using a method that assumes a nonlinear dependence of deformations on pressures, described by a second-degree polynomial is recommended.
Classification of contaminants in diesel engine oils
Authors: Pashukevich S. V.
Published: March 2022

Introduction. The deterioration of engine oil in an internal combustion engine (ICE) is directly related to the ingress of various pollutants into the crankcase. Depending on the type of contamination, the type of sediment on engine part surfaces varies. It should be noted that the functioning of the motor oil is extremely affected by the oxidation process, and organic acids produced during the process contribute to corrosion of ICE parts. Water, diesel, cooling fluid, soot particles, asphaltenes, etc. also cause irreparable damage.Materials and methods. This paper presents the results of an extensive literature review aimed at studying the main types of motor oil pollutants. Classifications are given for the aggregate state of pollutants, as well as for possible ways of their penetration into the lubricant. Liquid pollutants are the most narrowly considered in this article. To demonstrate the negative effect of contaminants entering the engine oil, photographs of internal combustion engine parts with sediments on the surfaces of the internal combustion engine components are presented.Results. The classification of the main pollutants of motor oils is given; the consequences arising from the ingress of foreign compounds into the lubricant in question are indicated.Conclusion. The effect of contaminants on the parts of the internal combustion engine and the lubricant has been established. On the basis of the classification, it is possible to judge the causes of entry and the possible consequences of the impact of contamination on the operation of the engine.
BRAIN WRITING LEARNING MODEL USING EPISODIC MEMORY IN TEACHING NARRATIVE TEXT
Authors: Fansury Andi Hamzah , Januarty Restu , Asdar Asdar
Published: March 2022

The aims of this study was (1) To find out the significant brain writing learning model using episodic memory in teaching narrative texts (2) to determine the students' interest in applying brain writing learning model using episodic memory in teaching  narrative text. This study used quasi-experimental method. This research was conducted at SMPN 30Makassar with total number population consist of 810 students. The researcher used a random sampling technique. The total sample used was 60 students. The researcher divided the sample into two classes, namely the experimental class and the control class. The instruments of the research were tests, questionnaires and interviews. Based on data analysis, it can be concluded that brain writing learning model using episodic memory in teaching narrative texts not significantly  improve the students achievement especially in writing narrative text. Brain writing learning model using episodic memory also is very effective to be applied to avoid student boredom and make students more interest in learning process.
SISTEM PAKAR HAMA DAN PENYAKIT TEMBAKAU MENGGUNAKAN METODE FORWARD CHAINING
Authors: Ariyani Dyah
Published: March 2022

Tembakau merupakan produk pertanian semusim yang masuk dalam komoditas perkebunan. Indonesia menjadi salah satu negara penghasil tembakau terbanyak di dunia, bahkan memiliki daerah penghasil tembakau terbaik dunia. Terlepas dari semuanya tumbuhan tidak selamanya dapat terlepas dari serangan hama dan penyakit. Pengetahuan yang minim dan kurangnya informasi tentang hama dan penyakit yang menyerang tanaman tembakau seringkali membuat petani gagal panen dan mengalami kerugian. Oleh karena itu dibutuhkan seorang pakar yang ahli tentang hama dan penyakit tembakau. Berdasarkan fakta diatas, penelitian ini dapat membantu dalam mendiagnosa hama dan penyakit tanaman tembakau serta pencegahan dini dari serangan penyakit. Aplikasi ini dibuat berbasis web dengan menggunakan PHP. Pada sistem pakar ini akan terdapat beberapa diagnosa, setelah semua diagnosa yang sesuai sudah terdaftar, maka akan tampak hasil diagnose beserta solusi yang dapat mengantisipasi hama dan penyakit tembakau tersebut.
RANCANG BANGUN SISTEM INFORMASI BUDGETING ORMAWA (ORGANISASI MAHASISWA) UNIVERSITAS MUHAMMADIYAH SEMARANG BERBASIS WEB
Authors: Wulandari Suciyati
Published: March 2022

Sistem Informasi Budgeting Ormawa (Organisasi Mahasiswa) Universitas Muhammadiyah Semarang Berbasis Web merupakan suatu sistem yang dirancang dan dibangun untuk mempermudah SEMA KM terkhusus komisi 3 (komisi Budgeting) dalam proses pengolahan data anggaran di lingkungan organisasi mahasiswa Unimus. Saat ini Sistem Informasi Budgeting Ormawa (Organisasi Mahasiswa) Universitas Muhammadiyah Semarang dibangun sebatas web offline atau localhost. Metode yang digunakan dalam perancangan Sistem Informasi Budgeting Ormawa (Organisasi Mahasiswa) Universitas Muhammadiyah Semarang ini menggunakan model waterfall karena sifatnya yang fleksibel. Sebelum Sistem Informasi Budgeting Ormawa (Organisasi Mahasiswa) Universitas Muhammadiyah Semarang diimplementasikan menjadi sistem yang berjalan akan dilakukan pengujian alpha dan pengujian beta guna menemukan kelemahan sistem dan menentukan kualitas sistem. Hasil dari perancangan ini adalah sebuah sistem informasi Budgeting yang mudah digunakan oleh user dan pengoperasiannya tidak rumit.
Media Pembelajaran Sistem Rangka Manusia Dengan Augmented Reality untuk Siswa SMP
Authors: Rossa Hanrian
Published: March 2022

Perkembangan teknologi secara perlahan hadir di dunia pendidikan, yang selaras dengan banyak kesempatan untuk belajar dan berlatih. Kemunculannya dalam dunia pendidikan tampaknya tepat waktu mengingat sifat dari kebutuhan belajar saat ini: lebih luas, akses cepat ke materi pembelajaran dan kebutuhan terus-menerus untuk komunikasi yang cepat. Salah satu contoh dari penerapan teknologi baru adalah media pembelajaran berbasis android. Penelitian ini bertujuan untuk mengembangkan media pembelajaran berbasis android pada mata pelajaran IPA bab sistem rangka manusia kelas VII. Dengan memanfaatkan teknologi 3D (Augmented Reality) untuk menampilkan kerangka manusia maka pembelajaran menjadi semakin menarik. Teknologi 3D yang dikembangkan tidak memerlukan marker atau penandaa sehingga pengguna bisa memunculkan 3D kerangka manusia dimana saja sesuai dengan intruksi yang telah disediakan. Metode penelitian yang digunakan adalah waterfall yang menyediakan pendekatan alur hidup perangkat lunak dan berurutan. Metode waterfall terdiri atas analisis, desain, pengodean, implementasi, pengujian dan tahap pendukung. Hasil Pengujian menunjukkan bahwa media pembelajaran sistem rangka manusia yang telah dibuat secara fungsionalitas berjalan dengan baik dan dinilai layak digunakan. Fitur 3D yang digunakan tanpa marker memang memudahkan pengguna.
METODE DIRECT UNTUK MENGETAHUI NET PLANT HEAT RATE UNIT #10 PLTU REMBANG KETIKA SIMPLE INSPECTION UNIT #20
Authors: Satria Harfani
Published: March 2022

Merit order adalah tingkat prioritas suatu pembangkit termal untuk di dispatch dalam suatu sistem. Hal ini disebabkan oleh net plant heat rate (NPHR) dan harga bahan bakar. Akibat yang terjadi pada pembangkit dengan peringkat merit order rendah akan diprioritaskan turun beban terlebih dahulu atau naik beban paling akhir. NPHR merupakan salah satu indeks kinerja pembangkit termal. Semakin rendah NPHR maka semakin tinggi efisiensi pembangkit tersebut. Permasalahan yang terjadi dalam penentuan NPHR PLTU Rembang saat 2 unit beroperasi adalah kurang akurat karena beban listrik pemakaian sendiri masing-masing unit tidak berasal seluruhnya dari gross output generatornya, melainkan juga dibebankan oleh unit yang satunya. Terutama untuk pemakaian unit common seperti water treatment plant (WTP), desalination plant serta coal & ash handling plant karena di suplai oleh salah satu unit. Solusinya dengan mencari nilai NPHR ketika salah satu unit shutdown, agar dapat diketahui nilai NPHR yang lebih akurat. Penelitian  ini membahas tentang penggunaan metode direct untuk mencari NPHR pada unit 10 PLTU Rembang ketika unit 20 sedang overhaul. Metode direct adalah metode input-output yang hanya memerlukan bahan bakar sebagai input dan daya listrik sebagai output. Hasil menunjukan bahwa NPHR memiliki nilai paling rendah jika unit berbeban maksimum 300 MW gross. Dari hasil perhitungan didapati bahwa pada beban maksimum 300 MW gross, NPHR rata-rata pada unit 10 lebih rendah dibanding dengan data PLN Puslitbang Januari 2017 yaitu masing–masing 2.544,34 kcal/kWh dan 2.788 kcal/kWh. Sedang  faktor-faktor yang menentukan nilai NPHR antara lain  pembebanan listrik, nilai kalor bahan bakar serta pemakaian listrik untuk keperluan sendiri.
PERANCANGAN ARSITEKTUR HARDWARE DAN MONITORING SMART CHARGER
Authors: Cipta Widiyanto Max Teja Ajie
Published: March 2022

Gadget digunakan oleh hampir semua kalangan dengan mobilitas yang tinggi sehingga membutuhkan catu daya listrik hampir di semua tempat dan kondisi ketika baterai hampir habis. Keterbatasan catu daya listrik PLN dan keterbatasan energi fosil seharusnya lambat laun akan tergantikan dengan energi terbarukan dari tenaga surya, tenaga bayu, tenaga air, panas bumi serta yang lainnya. Dalam penelitian ini kami mengusulkan sebuah arsitektur hardware untuk menciptakan Smart Charger. Kami memanfaatkan energi surya sebagai penghasil listrik di mana terdapat tracker solar panel yang bisa berputar untuk menangkap sinar matahari lebih banyak, serta penambahan dinamo generator DC dan fly whell untuk melipat ganakan daya yang ada. Hasil penelitian menunjukkan pemakaian dual inverter yaitu On Grid dan Off Grid lebih baik dari sisi pemakaian yang tidak menimbulkan overheating sehingga lebih awet dan baterai pun juga demikian. Pemakaian SCC MPPT dapat menaikan efekrifitas penyimpanan daya sebesar 2% di banding mode PWM. Sehingga di perancangan smart charget ini memakai dual inverter dan MPPT SCC.
PENINGKATAN FAKTOR DAYA DAN EFFESIENSI KONSUMSI ENERGI LISTRIK PADA KAPAL BULK CARRIER 50.000 DWT (DEAD WEIGHT TON) MENGGUNAKAN FILTER PASIF
Authors: Tamami Wimpi Rizal
Published: March 2022

Sistem kelistrikkan kapal Bulk Carrier 50.000 dwt (dead weight ton) memiliki faktor daya yang menurun akibat besarnya beban-beban yang bersifat induktif, sehingga membutuhkan kapasitor bank untuk peningkatan faktor daya. Filter pasif selain untuk memperbaiki kecacatan gelombang dapat juga meningkatkan faktor daya. Pada Tugas Akhir ini dilakukan simulasi pemasangan manual step kapasitor dan filter pasif di setiap skema pembebanan. di hasil simulasi rata rata peningkatan faktor daya dari semua skema pembebanan adalah 10,15%. Pada tugas akhir ini perhitungan rata rata penghematan bahan bakar pada semua skema pembebanan dengan hasil Rp 1.338.246. dan pada skema beban penuh mendapatkan hasil penghematan Rp 2.213.640 per harinya dari Rp 35.297.496 menjadi Rp 33.083.856.
METODE DIRECT UNTUK MENGETAHUI NET PLANT HEAT RATE UNIT #2 PLTU REMBANG PADA SAAT OVERHAUL UNIT #1
Authors: Satria Harfani
Published: March 2022

Ketersedian energi listrik di sistem Jawa–Bali di dukung oleh beberapa pusat pembangkit listrik melalui jalur tansmisi voltase tinggi 150 kV dan voltase ektra tinggi 500 kV untuk berlangsungnya ketersediaan energi listrik secara andal dan terus–menerus. PLTU Rembang memiliki 2 unit yaitu unit #1 (#20) dan unit #2 (#10) yang memasok sistem transmisi 150 kV. Performa unit sangat menentukan dalam pemenuhan tersebut. Pusat Pengatur Beban (P2B) akan memilih pembebanan PLTU berdasarkan merit order. Merit order adalah tingkat prioritas suatu pembangkit termal untuk di dispatch dalam suatu sistem. Hal ini disebabkan oleh net plant heat rate (NPHR) dan harga bahan bakar. Akibat yang terjadi pada pembangkit dengan peringkat merit order rendah akan diprioritaskan turun beban terlebih dahulu atau naik beban paling akhir. NPHR merupakan salah satu indeks kinerja pembangkit termal. Semakin rendah NPHR maka semakin tinggi efisiensi pembangkit tersebut. Permasalahan yang terjadi dalam penentuan NPHR PLTU Rembang saat 2 unit beroperasi adalah kurang akurat karena beban listrik pemakaian sendiri masing-masing unit tidak berasal seluruhnya dari gross output generatornya, melainkan juga dibebankan oleh unit yang satunya. Terutama untuk pemakaian unit common seperti water treatment plant (WTP), desalination plant serta coal & ash handling plant karena di suplai oleh salah satu unit. Solusinya dengan mencari nilai NPHR ketika salah satu unit shutdown, agar dapat diketahui nilai NPHR yang lebih akurat.Penelitian  ini membahas tentang penggunaan metode direct untuk mencari NPHR pada unit #2 PLTU Rembang ketika unit #1 sedang overhaul. Metode direct adalah metode input-output yang hanya memerlukan bahan bakar sebagai input dan daya listrik sebagai output. Batubara yang digunakan adalah jenis low rank coal (LRC) senilai 4200–4500 kcal dan medium rank coal (MRC) senilai 4500–4800 kcal. Gross output generator memiliki rated power 300 MW sedang daya untuk pemakaian sendiri memiliki rated power 50 MVA. Nilai NPHR ditentukan dengan menghitung perkalian konsumsi dan nilai kalori batubara dibagi terhadap nett output generator. Nett ouput generator ditentukan dengan mengurangi gross output generator terhadap daya pemakain sendiri Trafo Universal Auxiliary Transformer. Hasil menunjukan bahwa NPHR memiliki nilai paling rendah jika unit berbeban maksimum 300 MW gross. Dari hasil perhitungan didapati bahwa pada  beban  rata-rata  299,5  MW  hingga  302,4  MW  gross,  NPHR  rata-rata pada  unit  #2  ketika  overhaul  lebih  rendah  dibanding  dengan  data  PLN Puslitbang  Januari  2017  yaitu  masing–masing  2.544,34  kcal/kWh  dan  2.788 kcal/kWh.  Demikian  pula  NPHR  unit  #2  sebelum  dan  sesudah  overhaul  unit #1 masing–masing  2.497 kcal/kWh dan 2.688 kcal/kWh   . Sedang  faktor-faktor yang menentukan nilai NPHR antara lain  pembebanan listrik,  nilai kalor bahan bakar serta pemakaian listrik untuk keperluan sendiri.
PENGARUH STATUS SOSIAL EKONOMI ORANG TUA DAN PENDIDIKAN KEWIRAUSAHAAN TERHADAP MINAT BERWIRAUSAHA MAHASISWA ANGKATAN 2017 FAKULTAS EKONOMI UNIVERSITAS NEGERI SURABAYA
Authors: Larasati Dian Dwi
Published: March 2022

ABSTRAK Tujuan penelitian ini ialah untuk menganalisis apakah terdapat pengaruh secara parsial ataupun simultan anatara status sosial ekonomi orang tua dan pendidikan kewirausahaan terhadap minat berwirausaha mahasiswa angkatn 2017 Fakultas Ekonomi Universitas Negeri Surabaya. Populasi dalam penelitian ini seluruh mahasiswa aktif Fakultas Ekonomi angkatan 2017 dan pengambilan sampel menggunakan teknik probability sampling dengan jenis simple random sampling serta berdasarkan tabel Isaac dan Michael dan diperoleh jumlah sampel sebesar 233 mahasiswa. Penelitian ini menggunakan teknik analisis regresi linier berganda. Hasil penelitian menunjukkan bahwa : (1) Status sosial ekonomi orang tua dan pendidikan kewirausahaan secara simultan berpengaruh terhadap minat berwirausaha mahasiswa. (2) Status sosial ekonomi orang tua tidak berpengaruh terhadap minat berwirausaha mahasiswa. (3) Pendidikan kewirausahaan berpengaruh terhadap minat berwirausaha mahasiswa. Kata Kunci: status sosial ekonomi orang tua, pendidikan kewirausahaan, minat berwirausaha.   ABSTRACT The purpose of this study was to analyze whether there is a partial or simultaneous influence between the socio-economic status of parents and entrepreneurship education on the interest of entrepreneurship in 2017 Faculty of Economics, State University of Surabaya. The population in this study were all active students of the Faculty of Economics in 2017 and taking samples using probability sampling techniques with the type of simple random sampling and based on Isaac and Michael tables and obtained a total sample of 233 students. Data was collected by distributing questionnaires to respondents. The collected data is then analyzed using multiple linear regression analysis. The results show that: (1) Parents' socioeconomic status and entrepreneurship education simultaneously influence student interest in entrepreneurship. (2) The socioeconomic status of parents does not affect the interest in student entrepreneurship. (3) Entrepreneurship education influences student interest in entrepreneurship. Keywords: parents' socioeconomic status, entrepreneurship education, entrepreneurship interests.
HUBUNGAN TINGKAT STRES DAN AKTIVITAS FISIK DENGAN DISMENOREA DI MASA PANDEMI COVID-19
Authors: Fadjriyaty Tiara , Samaria Dora
Published: March 2022

Introduction: Dysmenorrhea is the medical term for pain with period or usually called menstrual pain. Some eligible womwn have had experience it. The pain is too much to bear that make women unable to do any activity. There are various factors that can aggravate dysmenorrhoea, such us smoking, dringking alcohol, lack of physical activity and stres. During the covid-19 pandemic, the government implemented several policies to reduce the spread of the Covid-19 virus, such as large-scale social restrictions so that most activities were carried out at home, these conditions can cause stress and lack of activity to change. The purpose of this study was to determine the correlation between stress levels and physical activity with the dysmenorrhoea scale in students of SMA Negeri 4 Tangerang Selatan during the Covid-19 pandemic.Methods: This study uses a cross-sectional research design with a sample of 128 respondents through the Consecutive Sampling method. The data was collected through google form using a questionnaire perceived stress scale 10 (PSS-10), the International Physical Activity Questionnaire (IPAQ) and the Numeric Rating Scale (NRS).Result: The results showed that there was a significant relationship between stress levels (p-value 0.019) and physical activity (p-value 0.039) with primary dysmenorrhoea scale..Discussion: Suggestions from this study are expected that students can control stress levels and increase daily physical activity because good physical activity will stimulate blood flow so that it can reduce and reduce menstrual pain (dysmenorrhea).Kata Kunci: Covid-19, physical activity, Primary Dysmenorrhea , Stress scale.
EMOTIONAL QUOTIENT (EQ) BERPENGARUH TERHADAP GANGGUAN MENSTRUASI PADA REMAJA DI MASA PEMBELAJARAN JARAK JAUH
Authors: Rahmawati Veronica Yeni , Puspasari Jehan
Published: March 2022

Gangguan menstruasi pada remaja dapat berpengaruh pada produktivitas, kualitas hidup, gangguan emosional dan intoleransi aktivitas yang dapat menyebabkan aktivitas sehari-hari menjadi terganggu. Penelitian ini bertujuan untuk mengetahui hubungan antara Emotional Quotient (EQ) dengan gangguan menstruasi pada remaja di masa pembelajaran jarak jauh. Penelitian ini menggunakan analitik kuantitatif dengan desain cross sectional. Pengambilan sampel menggunakan teknik purposive sampling sehingga didapatkan sampel 227 responden. Responden penelitian adalah mahasiswi yang berusia 17-19 tahun dan masih aktif kuliah di STIKes RS Husada Jakarta Pusat. Instrumen yang digunakan adalah data primer yang meliputi kuesioner demografi, kuesioner Emotional Intelligent Scale dan kuesioner gangguan menstruasi. Analisis data yang digunakan yaitu uji statistik bivariat menggunakan chi square dan uji statistik multivariat menggunakan regresi logistic. Hasil penelitian menunjukkan terdapat hubungan yang signifikan antara Emotional Quotient (EQ) dengan gangguan menstruasi pada remaja di masa pembelajaran jarak jauh (p=0,000, OR 18, 95% CI 0.076-0.425). Peneliti merekomendasikan peran institusi pendidikan mengembangkan softskill pada remaja dengan mengolah kemampuan emosional positif untuk meningkatkan kecerdasan emosional agar terhindar dari gangguan menstruasi. Kata kunci : remaja, Emotional Quotient (EQ), gangguan menstruasi, pembelajaran jarak jauh
MODEL KEPERCAYAAN KESEHATAN (HEALTH BELIEF MODEL) MASYARAKAT PADA PELAKSANAAN VAKSIN COVID-19
Authors: Laili Nurul , Tanoto Wahyu
Published: March 2022

Pelaksanaan vaksin Covid-19 sebagai bentuk upaya pemerintah mengendalikan jumlah penularan Covid-19 dengan memberikan kekebalan secara masal pada masyarakat. Keberhasilan program vaksinasi Covid-19 dipengaruhi oleh persepsi dan keinginan individu untuk melakukan tindakan pencegahan penularan. Persepsi individu dalam memilih melakukan atau tidak melakukan tindakan pencegahan kesehatan dapat dikaji melalui health belief model yang berfokus pada sikap dan keyakinan individu.  Desain penelitian yang digunakan dalam penelitian menggunakan deskriptif analitik, teknik pengambilan data yang digunakan yaitu purposive sampling. Peneliti mengambil sampel di Wilayah Kecamatan Pare sesuai kriteria penelitian sebanyak 150 responden. Variabel penelitian yaitu model kepercayaan kesehatan (health belief model) masyarakat pada pelaksanaan vaksin Covid-19. Pengukuran menggunakan kuesioner yang kembangkan dari beberapa evidence based. Hasil penelitian menunjukkan bahwa sebagian besar reponden mempunyai persepsi kerentanan dan persepsi hambatan positif pada usia 41-50 tahun, hampir seluruh responden memiliki persepsi keseriusan dan persepsi manfaat positif pada usia 20-30 tahun. Hampir seluruh responden berjenis kelamin laki laki mempunyai persepsi manfaat positif pada pelaksanaan vaksin Covid-19. Hampir seluruh responden memiliki persepsi keseriusan positif dengan tingkat pendidikan yang tinggi (PT) dan pekerjaan sebagai PNS. Keikutsertaan responden dalam program vaksin, hampir seluruh responden memiliki persepsi manfaat yang positif. Persepsi seseorang sangat mempengaruhi dalam mengambil keputusan, salah satunya dalam bidang kesehatan. Seseorang yang mendapatkan informasi yang tepat, menilai kondisi dan situasi terkait sesuatu yang mengancam kesehatannya, akan membentuk prilaku yang juga mengarah pada upaya pencegahan dan pengobatan pada tubuhnya. Perilaku menjaga kesehatan ditentukan oleh keyakinan atau persepsi personal individu mengenai suatu penyakit. Perilaku kesehatan dibentuk oleh keinginan seseorang untuk menghindari penyakit atau menjadi sembuh, dan juga oleh keyakinannya bahwa perilaku kesehatan ini akan membuatnya mencapai situasi bebas dari penyakit atau sembuh. Seseorang memiliki persepsi terhadap masalah kesehatan dipengaruhi oleh faktor demografis dan psikologisnya. Latar belakang usia, jenis kelamin, status sosial ekonomi, pendidikan sangat berkontribusi pada bagaimana seseorang memahami situasi dan kondisi. Tekanan psikologis dari orang-orang, kebiasaan, keyakinan terhadap informasi yang didapatkan dari orang yang dipercayainya juga berperan pada pembentukan persepsi. Selain mempengaruhi persepsi, faktor-faktor tersebut juga mempengaruhi motivasi individu melakukan tindakan, sebelum akhirnya tindakan tersebut benar-benar dilakukan.
Pengaruh Pembelajaran Daring terhadap Tingkat Stres Orang Tua dalam Mendampingi Anak Sekolah Dasar Selama Pandemi Covid-19 di SD Kreatif Muhammadiyah Gombong
Authors: Purwanti Ery , Devi Rina Yustika , Susilowati Yuli
Published: March 2022

Background: SARS-CoV-2 caused COVID-19. The Indonesian government introduced a distance-learning policy in mid-March 2020. Online learning is education that takes place over the internet and can be conducted in the home. Parents have to accompany their children many times at home, and it was impacted parent stress. Purpose: to know the relationship of study from home and parents stress level when they accompany their children during the COVID-19 pandemic. Method: This study was descriptive correlational research with a cross-sectional approach. The total respondents were sixty-six parents of students at SD Kreatif Muhammadiyah Gombong. They were recruited as respondents by random sampling technique. The structured instrument in this study was LORI and PSS-10. Result: From sixty-six respondents there were sixty-two women (93.9%), sixty-one aged 25-45 years old (92,4%), thirty-six had higher education background (54.5%), twenty-six were housewife (39.4%). A number of thirty-one respondents were at an adequate level (47%) when they accompanied their children to study at home, and fourth-one respondents were in high levels (62.1%). Analysis data used the Spearmen rank test, and it showed a relationship between both variables (p-value = 0.035 < 0.05). Conclusion: There was a relationship between study from home and parents stress level. Recommendation: This resulting study can be a reference for the parent who has students studying at home. The parent can also give motivation regularly, and it may improve children’ performance. Besides on the parent should have coping strategies to solve all problems.
Comparative Study of Wavelet-SARIMA and EMD-SARIMA for Forecasting Daily Temperature Series
Authors: Ghide Luwam , Wei Siyuan , Ding Yiming
Published: March 2022

This paper aims to find a forecasting model based on the comparative study of wavelet- ARIMA and EMD-ARIMA models and residual-based model selection technique for temperature time series. Time series analysis is essential in studying temperature data for investigating the variation and predicting the future trend, in which we can control the changes and make good decisions. And most important is to understand the trend in the series with time. This study applied hybridized models of wavelet transform and empirical mode decomposition with seasonal autoregressive integrated moving average (SARIMA), which combines two models to get better accuracy, for forecasting daily average temperature time series data in the central region of Eritrea, Asmara. Daily data was collected for 30 years, from January 1, 1991, to December 31, 2020. The study compares WT-SARIMA and EMD-SARIMA models to find a well fit and better forecasting model. Model selection techniques are essential for time series analysis to determine which model best fits our data. AIC and BIC are the most used methods in model selection. This paper uses an additional method based on the residual series. In estimating accurate parameters, the structure of the residual sequence had a lot of connection, in which a stationary residual depict an accurate estimation. From this perspective, a nonstationarity measurement of the residual series is used for model selection. The relative performance is based on the predictive capability of sample forecasts assessed. The results indicate that the hybridized wavelet-SARIMA model is more effective than the other models, and MATLAB soft-wire is used for this analysis.
On Magnetic Curves According to Killing Vector Fields in Euclidean 3-Space
Authors: Saad M. Khalifa , Abdel-Aziz H. S. , Ali Haytham A.
Published: March 2022

In the geometric theory of space curves, a magnetic field generates magnetic flow. The trajectories of magnetic flow are called magnetic curves. In the present paper, we obtain magnetic curves corresponding to killing magnetic fields in Euclidean 3-space E3. The magnetic curves of the spherical indicatrices of the tangent, principal normal and binormal for a regular space curve are said to be meant curves. Also, we investigate the magnetic curves of the tangent indicatrix and obtain the trajectories of the magnetic fields called TT-magnetic, NT-magnetic and BT-magnetic curves. Finally, some computational examples in support of our main results are given and plotted.
Study of alternative splicing in LEPR, PRLR, GHR genes of cattle in terms of milk productivity
Authors: Skachkovа Olga Aleksandrovna , Vasiliev Alexey Alekseevich , Brigida Artem Vladimirovich
Published: March 2022

Specific genes LEPR, PRLR, GHR of cattle are part of the complex of milk productivity, the indicators of which, when evaluating animals, are given great importance (milk yield, content of mass fraction of protein and fat in milk). The review considers topical issues of the functional activity of genes mediated by alternative splicing, during which some functional mutations are possible that are directly responsible for differences in phenotypes. The available data about alternatively spliced variants of mRNA transcripts of the PRLR, GHR and LEPR genes indicate that two isoforms of the PRLR gene have been identified (l-PRLR and s-PRLR), changes in the ratio of which, inter alia, affect the expression of ?-casein, which is one of the milk proteins. GHR exists as two isoforms (fl-GHR and d3-GHR), which are widespread in most populations, and six LEPR isoforms (LEPRa - LEPRf) have been identified in LEPR, while in the long isoform LEPRb mutations are associated with obesity and pituitary dysfunction and the roles of the rest isoforms remain undefined. Disclosure in further studies of mutations and indicators of changes in proportions in isoforms specific for milk productivity can be considered as new and most effective molecular genetic markers.
Hearthstone Battleground: An AI Assistant with Monte Carlo Tree Search
Authors: Zolboot Namuunbadralt , Johnson Quinn , Shen Dakun , Redei Alexander
Published: March 2022

We are in the golden age of AI. Developing AI software for computer games is one of the most exciting trends of today’s day and age. Recently games like Hearthstone Bat- tlegrounds have captivated millions of players due to it’s sophistication, with an infinite number of unique interactions that can occur in the game. In this research, a Monte-Carlo simulation was built to help players achieve higher ranks. This was achieved through a learned simulation which was trained against a top Hearthstone Battleground player’s historic win. In our experiment, we collected 3 data sets from strategic Hearthstone Bat- tleground games. Each data set includes 6 turns of battle phases, 42 minions for battle boards, and 22 minions for Bob’s tavern. The evaluation demonstrated that the AI assis- tant achieved better performance — loosing on average only 9.56% of turns vs 26.26% for the experienced Hearthstone Battleground players, and winning 56% vs 46.91%.
Ethical Hacking: Skills to Fight Cybersecurity Threats
Authors: Smith Logan , Chowdhury Md Minhaz , Latif Shadman
Published: March 2022

Ethical hacking education prepares future information security professionals with the tools and skills to fight and prevent cybersecurity threats. Businesses, schools, governments, and individuals have an increasing concern to keep their systems, networks, and data secure from outside threats. Most information security technologies use a defensive approach to keep client’s data safe; however, ethical hacking provides one of the only proactive/aggressive methods for information security professionals to utilize. Teaching inexperienced information security professionals these aggressive tactics can be viewed as a double- edged sword. Since they are the same methods used by malicious hackers, educating new security professionals will undoubtedly educate more malicious hackers.
An Ontology Based Approach towards End User Development of IoT
Authors: Debnath Narayan C. , Banerjee Shreya , Van Giau Ung , Quang Phat Tat , Thanh Dai Nguyen
Published: March 2022

Trigger-Action-Programming (TAP) is a most widely used End User Development (EUD) tool for Internet of Things (IoT). However, end users often cannot differentiate between distinct kinds of triggers and actions. They also make erroneous combinations of those. Consequently, inconsistencies, and bugs are exhibited in behavior of IoT objects. To resolve this issue, end users need to be guided to interpret different triggers, actions and their combinations effectively. In this case, precise representation of temporal and contextual aspects of triggers and actions can assist. Moreover, vast and growing numbers of IoT objects as well as increasing numbers customized rules create scalability issues. To address these drawbacks, this paper has proposed an upper level ontology named as Trigger Action Ontology (TAO) that provides meta rule semantics for TAP. The contribution of proposed ontology specification is to present formal semantics of temporal and contextual aspects of triggers and actions. Further, the ontology is implemented in Protégé. In addition, the expressiveness of the proposed ontology is illustrated using a suitable case study.
Estimation Of Water Saturation In Carbonate Reservoirs Without Resistivity Log Data. Part Ii: Formulation Of A New Model
Authors: Widarsono Bambang , Atmoko Heru , Ridwan Ridwan , Kosasih Kosasih
Published: March 2022

This paper is the second part of the two-part report on study for establishing alternative models that are valid for Indonesian carbonate reservoirs. In this second part formulation of the new models is presented. For the study, 407 plug samples taken from various limestone reservoirs in Indonesia were used. Following Lucia’s procedure the samples were classified, grouped, averaged, and their capillary pressure data was formulated to form water saturation models that are essentially functions of porosity and height above free water level. Validity test on the models are performed on two wells in West Java with very encouraging results. With using the Archie model as reference, justified using well test data, the new models prove themselves reliable while the original Lucia models provide far too optimistic estimates. The model validity check shows tha the models are valid for at least Class 1 and Class 2 rocks in accordance with Lucia classification. Study on Class 3 rock is needed in the future
Surfactant-Induced Wettability Alteration
Authors: Sugihardjo Sugihardjo
Published: March 2022

Contact of surfactant solution onto rock surface has an important impact on the wettability alteration of the rock. This phenomenon has widely received attention of researchers on the field of EOR (enhanced oil recovery), at which surfactant solution basically has been used as the main injection fluid. However, there has not yet come up with conclusive findings, which is due to the unique characteristics of surfactant used at the oil fields. Therefore, every surfactant needs a particular laboratory evaluation before injected into a reservoir. We have evaluated surfactant-induced wettability alteration by means of contact angle measurement. Three kinds of surfactant have been used in this experiment, namely: TFSA (thin film spreading agent), IFT-R (interfacial tension reduction), and Well Stimulator type of surfactants. Two kinds of rocks namely LS (limestone) and SL (sandy limestone) have also been prepared. Both rocks are originally oil wet. TFSA-LS interaction tend to decrease the oil preferences with time, the contact angle increased 30 degrees after 8 weeks. Whereas TFSA-SL experienced only a little change of contact angle. Contact IFT-R and LS has changed significantly the contact angle to around 51degrees indicating less oil preference. Whereas, IFT-R and SL only changed a bit to less oil wet. The stimulator type of surfactant obviously lessen the oil wet tendency for the both rocks, the contact angles increase from initially around 15 to 35 degrees. In this experiment we found out that all the three surfactants generally tend to change the wettabillity to less oil wet.
Flame Stability And Fuel Efficiency Of Gas Diffusion Flame On The Backward Facing Step
Authors: Harinaldi Harinaldi , Maymuchar Maymuchar
Published: March 2022

Propane and butane injection into the recirculation zone in the fuel area with backward-facing step has a significant effect to the diffusion flame with the characteristic stability which depends on the velocity of the free air stream, the injection position from the step and the injection position to step height ratio. The test result shows that there are two main stable diffusion flames: a stabilized flame in the recirculation zone and a stabilized flame in the shear layer region. There is a decrease of the fuel efficiency due to the effect of the greater ratio of the injection position to the step height and the farther injection position from the steps. The effect of the free air stream velocity is much more significant the injection location near the steps.
A New Procedure For Reservoir Fluid Characterization With Equation Of State (EOS)
Authors: Syahrial Ego
Published: March 2022

A new procedure for reservoir fluid characterization through equation of state (EOS) is proposed. It is applied in a selecting the most appropriate fluid composition for the purpose of reservoir fluid characterization. A Hoffman-Crump-Hocott plot is used to determine whether or not the streams are genuine equilibrium fluids. With the aid of phase diagram and saturation pressure from RFT, the most appropriate fluid sample was chosen for fitting an equation of state to experimental data through regression. Based on data analysis and quality control of all PVT data suggested that fluid from UP-1 DST-3 is the best representative of XYZ field. The PR3-EOS and LBC correlation are applied to the UP-1 DST-3 data sets under conditions of predictions and regression. Agreement between laboratory data and regressed EOS results is generally good to excellent. The results show that that regression on critical properties of components is sufficient for good data matches. In this work, a good agreement with experimental data was obtained with grouping (lumping) 15 to 7 components.
An Environmentally Friendly Wbm System Can Prevent Hard Brittle Shale Instability
Authors: Peng Chunyao , Feng Wenqiang , Luo Xiaohu , Li Shujiao , Riji Chen
Published: March 2022

In the Weizhou Southwest oilfields, drilling delays and suspension of wells prior to reaching the targets due to wellbore instability had occurred frequently. The hard brittle shale played a problematic role. Conventional water-based drilling fluids didn’t conquer the problematic formation due to intrinsically performance deficiencies. While Oil based drilling fluids are routinely preferred in the more technically demanding applications, they are cause for increasing concern due to offshore environmental restrictions and expensive disposal costs. An environmentally acceptable water-based drilling fluid was developed to challenge the problematic formation based on the combination of methylglucoside-silicate concept. It stabilized the reactive shale by the same mechanism as did oil-based drilling fluid in preventing shale hydration, pore pressure increase and weakening of shale by effectively developing sufficient osmotic force to offset hydraulic and chemical forces acting to cause filtration flux into the hard brittle shale. A field trial was initiated on the CNOOC 931 platform in Weizhou oilfield. The data from the pilot well showed that the novel drilling fluid exhibited excellent inhibition and lubricity which approached or even exceeded oil-based fluids.
The New Approach For Zonal Subdivision Of Pliocene - Pleistocene Nannoplankton Biostratigraphy In Waipoga-Waropen Basin, Papua
Authors: Panuju Panuju
Published: March 2022

Waipoga-Waropen Basin is placed in northern part of Papua on the island of New  Guinea. The gas discoveries had been made since 1958 in this basin, however, no economic value of reserves lead to the not producing basin state until this time. The main problem in Waipoga-Waropen Basin is great thickness of Pleistocene sedimentary layers (until 7500m) as product of turbidite system (Wold Barret, 2000). This makes difficulty in well section correlation based on the conventional biostratigraphy since individual layers within that section is being small part of biozone. Many reworked nannoplankton as implication of turbidite deposit are also being complicated aspect in biostratigraphic analysis. The Pleistocene ranges from 1.806 m.a. to 11.550 k.a. It was the most recent episode of global cooling or ice age took place. In nannoplankton biostratigraphy, this age is characterized by the extinction of Discoaster brouweri (Discoaster group) at the bottom and the first occurrence of Emiliania huxleyi at the top. The quatitative nannoplankton investigation of “T” well has been done, and there is evident that its sedimentary section gives the excellent nannoplankton assemblages to subdivide Pleistocene age sediments of Waipoga-Waropen Basin (Zone NN19) into 9 subzones. Biomarkers from the bottom to the top consist of: LO of Discoaster brouweri, FO of Gephyrocapsa caribbeanica, FO of Gephyrocapsa oceanica, LO of Cacidiscus macintyre , LO of Helicosphaera sellii, FO of Reticulofenestra asanoi, FO of Gephyrocapsa parallela, LO of Reticulofenestra asanoi, FO of Helicosphaera inversa and LO of Pseudoemiliania lacunosa. The sediments belong to zone NN 20 that placed in the uppermost part of Pleistocene were not analysed.
Developing Small Scale Flare Gas Recovery Unit To Utilize Not Economically Feasible Gas Flare
Authors: Caryana Yusep K
Published: March 2022

The World Bank’s flare gas utilization evaluation in Indonesia (2006) excluded the not economically feasible flare gas to be commercially utilized due to various barriers and economic reasons. To implement No Flare Gas Policy in Indonesia, it is necessary to carry out an analysis on the possibility of the not economically feasible flare gas based on the latest technology development and proximity flare gas market next to existing onshore oil/gas fields producing the flare gas. Small Scale Flare Gas Recovery Unit has been modelled to recover the gas flared and transported the gas to the proximity flare gas market. This concept shows that the not economically feasible flare gas can be commercially utilized in term of small/medium bussiness unit, and therefore No Flare Gas Policy in Indonesia will be achieved.