bluuebunny/crossref_metadata_2025 huggingface dataset:
SIC Error Towards the Packet Error Rate: Optimal Partitioning in OTFS-NOMA Systems
Authors: Zamanipour Makan
Published: June 2022

\textit{A system including a lamp and a door, each of which has two possible states $1$ or $0$, i.e., ''on/open'' and ''off/closed'': the states of the door and the lamp are independent of each other and the total Markov chain is the one with memory of variable length with the context-tree $(\tau, \mathscr{p})$ with regard to the transition probability $\mathscr{p}$ and $\tau\stackrel{def}{=}\{1, 10, 100, \cdots\}\cup \{ 0^{\infty}  \}$. Now, consider the lamp and the total system as the successive interference cancellation (SIC) error $-$ due to the imperfect SIC $-$ and the total packet error rate, respectively. How can we optimally determine the aforementioned variable length and adjust its variability in practice?} This paper technically explores orthogonal time-frequency-space (OTFS) modulation assisted non-orthogonal multiple access (NOMA) systems and the packet error rate mainly arising from the SIC imperfectness from an information-theoretic point of view. With a given prior distribution, we aim at marginalising over $\mathscr{SUFF}$ on all models $\mathscr{SUFF}$ of maximal depth $\mathscr{D}$ where according to the nature of the OTFS-NOMA principle, $\Big(\mathscr{SUFF}, \mathscr{D} \Big)=f\Big(\mathcal{T} (sec), \Delta f (Hz), \mathcal{N}^{(sample)}, \mathcal{M}^{(sample)}\Big)$ holds as a function of the OTFS-NOMA pair $\Big(\mathcal{N}^{(sample)}, \mathcal{M}^{(sample)}\Big)$. We theoretically make a solution to two scenarios of the availability and unavailability of the casual state-information (CSI) at the encoder, as well as an interpretation over e.g. enegy-level. 
On the Concept of Frequency in Signals Processing: A discussion
Authors: Soto-Bajo Moisés , Fraguela Collar Andrés , Herrera-Vega Javier
Published: June 2022

Frequency is a central concept in Mathematics, Physics, and Signal Processing. It is the main tool for describing the oscillatory behavior of signals, which is usually argued to be the manifestation of some of their key features, depending on their nature. For instance, this is the case of Electroencephalographic signals. Hence, frequency is substantially present in the most common methodologies for analyzing signals, as the Fourier Analysis or the Time-Frequency Analysis. 

However, in spite of its importance as a keystone in Signal Processing, and its seemingly simple meaning, its mathematical foundation is not as straightforward as it may seem at first glance. A naive interpretation of the different mathematical concepts modelling frequency can be misleading, as their actual meanings essentially differ from the intuitive notion which are supposed to represent. 

In our opinion, this circumstance should be taken into account to develop and apply appropriate signal analysis and processing tools in some applications. In the current text we discuss this topic, with the main goal to draw the attention of the mathematical and engineering community to this point, often overlooked. 
A Novel Implementation of Machine Learning for the Efficient, Explainable Diagnosis of COVID-19 from Chest CT
Authors: Liu Justin
Published: June 2022

In a worldwide health crisis as exigent as COVID-19, there has become a pressing need for rapid, reliable diagnostics. Currently, popular testing methods such as reverse transcription polymerase chain reaction (RT-PCR) can have high false negative rates. Consequently, COVID-19 patients are not accurately identified nor treated quickly enough to prevent transmission of the virus. However, the recent rise of medical CT data has presented promising avenues, since CT manifestations contain key characteristics indicative of COVID-19. This study aimed to take a novel approach in the machine learning-based detection of COVID-19 from chest CT scans. First, the dataset utilized in this study was derived from three major sources, comprising a total of 17,698 chest CT slices across 923 patient cases. Image preprocessing algorithms were then developed to reduce noise by excluding irrelevant features. Transfer learning was also implemented with the EfficientNetB7 pre-trained model to provide a backbone architecture and save computational resources. Lastly, several explainability techniques were leveraged to qualitatively validate model performance by localizing infected regions and highlighting fine-grained pixel details. The proposed model attained an overall accuracy of 0.927 and a sensitivity of 0.958. Explainability measures showed that the model correctly distinguished between relevant, critical features pertaining to COVID-19 chest CT images and normal controls. Deep learning frameworks provide efficient, human-interpretable COVID-19 diagnostics that could complement radiologist decisions or serve as an alternative screening tool. Future endeavors may provide insight into infection severity, patient risk stratification, and prognosis.
Pendekatan Pembelajaran Matematika Realistik (PMR) Pada Materi Pecahan Dapat Meningkatkan Hasil Belajar Siswa Kelas III/B SDI Wae Nakeng Kecamatan Lembor Tahun Pelajaran 2021/2022
Authors: Soda Nikodemus , Fahmi Muhammad
Published: June 2022

Hasil ulangan harian di kelas Matematika Pecahan menunjukkan jika pembelajaran kurang berhasil. Oleh karena itu, untuk meningkatkan penguasaan materi pecahan diperlukan model dan media pembelajaran yang sesuai. Salah satu model pembelajarannya yaitu dengan menggunakan benda-benda terdekat yang realistis. Penelitian ini dirancang untuk meningkatkan kemampuan atau penguasaan materi pecahan pada siswa kelas III/B SDI Wae Nakeng. Lokasi penelitian ini adalah SDI Wae Nakeng, Kecamatan Lembor memiliki 23 siswa, terdiri dari 12 perempuan dan 11 laki-laki. Data penelitian ini berasal dari hasil wawancara, survei kuesioner, hasil observasi tindakan dan hasil evaluasi. Penelitian dilakukan dalam dua siklus. Setiap siklus didasarkan pada tahapan yaitu perencanaan kegiatan, pelaksanaan tindakan, observasi dan refleksi pasca analisis. Informasi yang dikumpulkan dalam pembelajaran sehari-hari diberikan penjelasan secara lisan, diberikan contoh-contoh, bahkan diberikan latihan soal, memberikan kesempatan kepada siswa untuk bertanya, tetapi mereka tidak memanfaatkan kesempatan tersebut. Pengamatan peneliti terhadap pra tindakan menunjukkan bahwa siswa kurang termotivasi dalam belajar, cenderung merasa bosan dan kurang memperhatikan penjelasan guru. Sebelum langkah Siklus I, 7 siswa menguasai skor, dan setelah langkah Siklus I, 13 siswa menguasai skor. Kolaborasi dan keaktifan siswa masih rendah karena perlu mendapat perhatian pada siklus kegiatan selanjutnya. Hasil Penilaian Nilai rata-rata siswa pada siklus I adalah 60. Rata-rata nilai siswa pada Siklus II meningkat menjadi 76. Hal ini menunjukkan bahwa penggunaan media hasil objek terdekat siswa saat melaksanakan pembelajaran pecahan berdampak positif terhadap hasil evaluasi.
Analisis Determinan Tingkat Kemiskinan Perempuan Lansia Provinsi DI Yogyakarta Tahun 2020
Authors: Cholily Vebrina Hania
Published: June 2022

In 2020, Indonesia experienced an increase in the number of poor people by 10.19% with a total poor population of 26.42 million people. By definition, poverty is the inability from an economic point of view to meet the basic needs of food and non-food as measured from the expenditure side. The elderly tend to have a high poverty rate and elderly women have a greater potential to be in poor conditions with the percentage of poor elderly women being 9.96%. DI Yogyakarta is a province with an elderly poverty rate and the highest number of elderly population in Indonesia with an elderly percentage of 14.71% in 2020. Therefore, a solution is needed to minimize the number of poor elderly women in the DI Yoyakarta Province by knowing the factors that cause poverty in Yogyakarta elderly female level.This study was proposed with the aim of knowing the factors that influence the poverty of elderly women in the Province of DI Yogyakarta. The type of data used is primary data obtained from 799 samples of elderly women in DI Yogyakarta Province and secondary data as supporting data in this study. The analytical method used in this study is binary logistic regression. The variables in this study include: length of schooling, ability to access information and communication technology, labor participation, number of hours worked, marital status, health complaints and outpatient history.The results showed that the variables of school years, ability to access information and communication technology, labor participation, number of hours worked, health complaints and outpatient history had a significant effect on the poverty of elderly women in DI Yogyakarta Province. While the variable that does not significantly affect the poverty of elderly women in the Province of DI Yogyakarta is marital status, so that this variable does not have the opportunity to affect the poverty of elderly women in the Province of DI Yogyakarta.
Analisis Pemasaran Beras di Desa Debowae Kecamatan Waelata Kabupaten Buru Provinsi Maluku
Authors: Fitri Utami Nur , Turukay Martha , D. Leatemia Ester
Published: June 2022

The price of rice in the market is influenced by the role of marketing agencies. In this case, the rice marketing process will undergo a long process and will experience price changes from the producer level to the final consumer, resulting in a rice price gap between producers and consumers. This makes the rice marketing aspect an important activity in determining farmers' income. The purpose of this study is to determine marketing channels, margins, and marketing efficiency. The population in this study were 762 lowland rice farmers. Determination of the sample using the slovin method, so that the selected respondents were 42 farmers. The determination of the merchant respondents was carried out by tracing (tracing sampling). The sample of the respondents was 10 traders, namely 6 grinders, 2 large collectors, and 2 retailers. The analytical tools used are descriptive analysis, marketing margin analysis, and marketing efficiency analysis. The results showed that there were 5 patterns of rice marketing channels in Debowae Village, namely: farmers-grinders-consumers, farmers-grinders-retailers-consumers, farmers-grinders-large collectors-consumers, farmers-grinders-big collectors-retailers-consumers, and farmers-big collectors-retailers-consumers. The highest total marketing margin is in marketing channel II, which is IDR. 2,000/kg, while the lowest total margin is in marketing channel I, which is IDR.467/kg. The most efficient marketing channel is channel I with the smallest efficiency value of 3.35 percent.
Physiological responses during a single rebirthing (Breath work) session
Authors: Inbar Omri , Inbar Or , Zohar Hanan , Ofir Dror
Published: June 2022

Objective: The present report aimed to look at the physiological responses during a typical single Rebirthing session.
Material and Methods: Ten healthy young women participated in the study. Their mean age, weight, and height were 37±2.7 years, 54.1±6.4 kg, and 161.2±4.9 cm, respectively. The Rebirthing sessions took place at the Israeli Rebirthing Center in Tel-Aviv. The treatments were carried out by a qualified Rebirthing therapist that has experienced thousands of rebirthing sessions during the last 15 years. Sessions were performed in a dark, quiet room and executed in a one-to-one set-up with the same trained therapist. After around 40-50 minutes, the session approached its end. Metabolic, cardiovascular, pulmonary, and gas-exchange variables were measured breath-by-breath using a commercial portable metabolic system. All data were transmitted wirelessly to an adjacent room in the clinic and continuously monitored by the study's chief researcher.
Results: The primary study findings demonstrated that a typical Rebirthing session involving long (45-50 minutes) voluntary hyperventilation generated VO2, RER, HR, and O2 pulse matching well with the physiological demands of the procedure (breath work). At the same time, the ventilatory-related responses exhibited, as expected, exaggerated outcomes, illustrated by the high session's peak and average values of the depth (tidal volume), breathing frequency, and minute ventilation. Gas-exchange attributes showed extremely shallow end-tidal CO2 levels, high end-tidal O2, high respiratory exchange ratio, and very high levels of O2 and CO2 ventilatory equivalents. No significant grievances regarding participants' physical and mental/emotional feelings were reported in the present study.
Conclusions: The present study could not solve the apparent divergence between the observed (acute) physiological responses (mainly severe Hypocapnia) and the subjective participants' pleasant emotional state, and in many cases, spiritually uplifting, at the end of each treatment session.
Pemberdayaan Kesehatan Lansia Melalui Program LIBAS Hipertensi Sebagai Upaya Menangani Masalah Hipertensi pada Lansia di Desa Mertak Tombok
Authors: Wiguna Reza Indra , Jupriadi Lalu , Pratiwi Dita Retno , Apriani Lia Arian , Wardani Lidya , Solehah Mar'aten , Wulandari Ninin , Hartati Riadatul , Mustiadi Ahmad , Fazira Ema Jihan
Published: June 2022

Hypertension is a non-communicable disease that is one of the world's premature deaths. WHO (World Health Organization) estimates that currently the global prevalence of hypertension is 22% of the total world population. Southeast Asia is in the 3rd position with a prevalence of 25% of the total population. According to the NTB Provincial Health Office in 2019, out of all districts/cities in NTB, people with hypertension were over 18 years old, i.e. more women than men. Based on the data above, we are interested in proposing an idea of health services for the elderly group with hypertension through the LIBAS Hipertensi (Lansia Bebas Hipertensi) program. LIBAS is one of the health innovation programs as an effort to promote health in the elderly group in controlling hypertension. The Hypertension Libas activity aims to improve the ability of the elderly to control and treat hypertension. The method used is by conducting counseling and demonstrations targeting the elderly group in Mertak Umbak Hamlet and Jempong Eler Hamlet, amounted to 20 respondents., Hypertension Libas activities are carried out during 14 the day accompanied by elderly health cadres. The counseling activities carried out in the Libas Hypertension program were in the form of education about the problem of hypertension in the elderly, then the elderly were taught to process rosella tea as a therapy to reduce high blood pressure. The results of the Hypertension LIBAS activities can increase the knowledge of the elderly about hypertension and increase the ability of the elderly to control blood pressure by consuming rosella tea.
ESTADOS EMOCIONALES EXPERIMENTADOS POR ESTUDIANTES DE PSICOLOGÍA DURANTE CONTINGENCIA ACADÉMICA POR COVID-19:
Authors: Aceves Villanueva Yaralin , Martínez Soto Yessica , Ortega Andrade Norma Angélica , Farfán García Maria Del Carmen C. , Ochoa  Meza Gerardo
Published: June 2022

El objetivo del estudio fue conocer los estados emocionales experimentados por estudiantes de psicología durante las clases a distancia en periodo de contingencia (COVID-19), con el fin de contribuir al desarrollo de mejores estrategias de acompañamiento. Se aplicó un cuestionario para evaluar estados emocionales en 1996 estudiantes adscritos a siete universidades de CUMEX. Los resultados muestran una alta frecuencia en cinco emociones básicas (ira, tristeza, miedo, alegría y sorpresa) y en tres emociones de segundo orden (ansiedad, desesperación y estrés); los aspectos cognitivos de mayor frecuencia fueron: pereza, desinterés e incertidumbre. En los aspectos físicos destacaron taquicardias, sofocación e hiperventilación; en el campo interpersonal las condiciones de mayor incidencia fueron: problemas de pareja, de comunicación y duelo por pérdidas familiares. Se concluyó que quedarse en casa con clases a distancia, implicó un cambio importante, por lo que es necesario brindarles un acompañamiento que les permita afrontar los estados emocionales presentados.
О ПСЕВДО-ЛОКАТИВНЫХ АРГУМЕНТАХ В СТРУКТУРЕ ТРЕХМЕСТНЫХ ПРЕДИКАТОВ В АНГЛИЙСКОМ ЯЗЫКЕ
Authors: Гулевич Т.С.
Published: June 2022

Референтом глагола как единицы языка является событие объективной реальности. Аргументная структура глагола представляет собой проекцию компонентов лексикализуемого им события. Трехместные глагольные предикаты английского языка актуализируют разнообразные события с тремя участниками, соответствующими обязательным аргументам в структуре предиката. Глаголы каузации изменения местоположения уникальны тем, что обязательными в их структуре являются компоненты локативной семантики, которые принято считать адъюнктами, а не комплементами. Эти псевдо-локативные аргументы занимают переходную стадию между адъюнктами и комплементами глагола в результате действия механизма когнитивной компрессии.
INDIAN TRIBAL WELFARE SCHEMES AND THEIR IMPLEMENTATION: A STUDY
Authors: Dr. Basavaraj Bheemaraya
Published: June 2022

India has the largest concentration of tribal people anywhere in the world except perhaps in Africa. The tribal’s are children of nature and their lifestyle is conditioned by the eco‐system. India with a variety of eco-systems presents a varied tribal population throughout its length and breadth. Moreover the tribal development schemes have not brought any changes in the life of majority of the tribal people .Inclusive growth is not making the fruits of development available and accessible to the tribal population of India.
The present research paper is confined to the origin and theoretical background of Tribal Welfare and to evaluate the tribal development planning, and important eyesight to tribal development in India, particularly in Karnataka. The paper also highlights development of Tribal in India during five year planning period. The Government of India as provide more number of schemes, Welfare facilities and Programmes for the motive to development of Tribal people in India.
KEYWORDS: Tribal Welfare, Karnataka, Government of India, Schemes
ADVANCES IN THE USE OF STEM CELLS THERAPY IN VETERINARY CLINICAL PRACTICE
Authors: Afzalani A , Muthalib R.A. , Raguati R , Syahputri E , Suhaza L , Musnandar E
Published: June 2022

The present study was conducted to evaluate the effect supplementation of sengon leaves (SL) with a condensed tannin (CT) content on the in vitro profile of cumulative gas production (GP), methane (CH4) production, and rumen fermentation parameters. The SL containing 8.84% CT (88,4 mg per g SL) was supplemented at different levels of T0, T1, T2, T3 (0, 2, 4, and 6% CT per dry matter incubation of basal ration, respectively) during 48 h fermentation in 120 ml of serum bottles. The basal ration (BR) consisted of Brachiaria mutica grass and concentrate mix (60:40 ratio). Rumen fluid was collected from ruminally fistulated Bali cattle (Bos sondaicus). The profile of cumulative gas and methane production was fitted using y= a+ b (1 – e-ct). The profile of cumulative gas and methane production was lower at T3 and T2 than at T1 and T0. Methane gas production stabilized after 24 h of incubation for T3 and T2. Meanwhile, the profile of methane GP was stabilized after 36 h for T1 (2% CT) and after 48 h for T0 (0% CT) (control). The fermentation parameters measured in this study showed that increased supplementation with CT-SL significantly (P<0.05) decreased the in vitro dry matter digestibility (IVDMD), in vitro organic matter digestibility (IVOMD), ammonia (N-NH3), total volatile fatty acid (TVFA), total gas (TG, ml), total methane (ml) and methane percentage (CH4 per TG). The study concluded that supplementation of CT-SL at T2 (4% CT equal to 0.09 g SL/0.2 g BR, or equal to supplementation of 45% SL per BR (DM basis) was more effective in controlling methane production and was still favorable in IVDMD, IVOMD, N-NH3, and TVFA to maintain ruminal microbial activities and ruminant needs. The results suggest that evaluation under in vivo conditions is needed.
Key words: supplementation, sengon leaves, condensed tannins, methane, in vitro
STEREOLOGICAL AND MORPHOMETRIC ANALYSIS OF SPLEEN ON NEW ZEALAND WHITE RABBITS (ORYCTOLAGUS CUNICULUS)
Authors: Selcuk M.L.
Published: June 2022

The aim of this research was to examine the total volume and diameter of the spleen, white pulp and red pulp volume fractions, capsule thickness, germinal core surface area and diameter and investigate morphological differences between female and male White New Zealand rabbits. 9 male and 9 female rabbit spleens were used. Spleens were individually weighed and the length, thickness and width of spleen were measured using a digital caliper. The fixed samples after the routine histological procedure, serial sections of 10 μm thickness were taken and stained with hematoxylin eosin. All specimens were examined under the light microscope and photographed. Cavalieri’s method was used in area and volume calculations. According to results, there was no statistical difference between spleen volumes, spleen density, red pulp and white pulp volumes of female and male rabbits. It was determined that length and width of spleen in female rabbit spleens were greater than male but there was no difference between the thickness and weights of spleen. Germinal center diameter was found to be greater in female rabbits, while no difference was found in capsule thickness and germinal center areas. These morphometric data would significantly help the physician in the diagnosis and treatment of spleen diseases.
Keywords: Spleen, Cavalieri’s method, Stereology, White New Zealand rabbits
Pelaksanaan Pengembangan Sosial Anak di Taman Kanak-kanak Pertiwi 1 Kantor Gubernur Padang
Authors: Salsabilafitri Nadya , Izzati Izzati
Published: June 2022

Anak usia dini ialah individu yang unik dan mempunyai karakteristik yang sejalan dengan tahapan usianya. Pada masa ini, anak sedang mengalami pertumbuhan dan perkembangan yang sangat pesat, masa usia dini (0-6) tahun ini juga sering disebut masa keemasan (golden age) sebab pada masa inilah merupakan sebuah periode awal bagi anak untuk mengeksplorasi dirinya ke lingkungan. Salah satu aspek yang dikembangkan di Taman Kanak-kanak ialah perkembangan sosial. Dewasa ini, pengembangan sosial merupakan salah satu aspek yang harus dimiliki oleh setiap individu untuk melakukan adaptasi, bersosialisasi, bekerja sama, menyesuaikan diri dengan teman sebaya dan melakukan pendekatan dengan orang lain termasuk dengan lingkungan sekitar. Penelitian ini bertujuan untuk menggambarkan bagaimana pelaksanaan pengembangan sosial anak di Taman Kanak-kanak Pertiwi 1 Kantor Gubernur Padang. Penelitian ini menggunakan metode deskriptif kualitatif. Penelitian ini dilaksanakan di Taman Kanak-kanak Pertiwi 1 Kantor Gubernur Padang pada bulan Februari hingga Maret 2022. Hasil penelitian secara umum diketahui bahwa Pelaksanaan pengembangan sosial anak di Taman Kanak-kanak Pertiwi 1 Kantor Gubernur Padang sudah terlaksana dengan baik. Guru telah membuat perencanaan, pelaksanaan, dan evaluasi yang mengacu kepada kurikulum 2013 dan indikator pembelajaran. Sehingga dapat ditarik kesimpulan bahwasanya dalam perencanaan, pelaksanaan, dan evaluasi dalam pelaksanaan pengembangan sosial mengacu kepada kurikulum 2013 dan indikator pembelajaran yang telah ditetapkan.
Meningkatkan Kemampuan Emosional Anak Melalui Role Playing Pada Kelompok B di TK Islam Al-Asy’ari NW Reban Tebu
Authors: Halimatuzzuhrotulaini Baiq , Salmiah Salmiah
Published: June 2022

Tujuan penelitian ini adalah tujuan penelitian ini adalah untuk mengetahui apakah penggunaan role playing mampu meningkatkan kemampuan emosional anak kelompok B di TK Islam Al- Asy’ari NW Reban Tebu Tahun Pelajaran 2018/2019, Jenis penelitian ini adalah Penelitian Tindakan Kelas. Penelitian dilaksanakan di Taman Kanak-Kanak Islam Al- Asy’ari NW Reban Tebu Selong Kabupaten Lombok Timur Tahun Pelajaran 2018/2019, dilaksanakan pada bulan September-Oktober 2018. Subjek penelitian ini ada 2, yaitu subjek yang melakukan tindakan yaitu Guru kelas B TK Islam al-Asy’ari, dan subjek yang menerima tindakan yaitu siswa kelompok B sebanyak 19 orang anak. Data dikumpulkan dengan observasi, wawancara, dokumentasi, Instrumen penelitian yang digunakan berupa instrument lembar observasi yang berbentuk checklist dan instrument wawancara untuk guru, indikator kinerja, prosedur tindakan, dan analisis data. Hasil penelitian ini dapat disimpulkan bahwa: dengan metode role playing dapat meningkatkan kemampuan emosional siswa yang dilihat dari peningkatan yang terjadi pada Siklus I dan Siklus II. Setelah mendapat tindakan pada pertemuan Siklus I terjadi peningkatan sebesar 48 % atau 9 orang siswa katagori Mulai Berkembang (MB) dan 52% atau 10 orang siswa katagori berkembang sesuai harapan. Pada pertemuan ke-2 siklus II terjadi peningkatan yang signifikan yaitu 16% atau 3 orang siswa pada katagori Mulai berkembang ( MB) dan 84% atau 16 siswa pada katagori berkembang sesuai harapan (BSH). pada anak Kelas B usia 5-6 tahun di TK Islam AL-Asy’ari NW Reban Tebu pada tahun ajaran 2017/2018 yaitu sesuai dengan katagori ketuntasan yaitu 80%.
Kajian Perlintasan sebidang kereta api No 112A Km 93+100 Desa Dadirejo Kecamatan Tirto Kabupaten Pekalongan
Authors: Darmawan Arief , Oktarina Dhina , Soesilo Joopie Kelana
Published: June 2022

Jumlah kecelakaan di perlintasan kereta api di lintas utara jawa cukup tinggi. Pembangunan jalur ganda kereta api pada lintas utara jawa mengakibatkan peningkatan kapaistas lintas kereta api. Perlintasan sebidang kereta api no 112 A di desa Dadirejo Kecamatan Tirto Kabupaten pekalongan berada pada jalan lokal primer dengan lebar jalan 4 meter dengan pengaturan lalu lintas 2 arah. Berdasarkan data survey Lalulintas Harian total rata-rata terdapat 7.410 kendaraan dengan 3.746 smp. Jenis kendaraan yang lewat paling banyak adalah sepeda motor yaitu 81% selanjutnya dikuti oleh sepeda yaitu 16% selanjutnya diikuti dengan pickup dan becak sekitar 1%. Berdasarkan Gapeka 2020, kereta api yang melintas pada perlintasan adalah 66 kereta dengan rincian 20 Kereta Barang dan 46 kereta penumpang, dengan kecepatan maksimum kereta 105 km/jam. Jumlah SMPK pada perlintasan tersebut adalah 247.236  SMPK dan sudah saatnya ditingkatkan menjadi perlintasan tidak sebidang ataupun perlu peningkatan fasilitas sarana dan prasarana jalan untuk meningkatkan keselamatan di jalan raya
SISTEM KENDALI PROTOTYPE KERETA MAGLEV UNTUK MENGATUR PERGERAKAN MENGGUNAKAN NODEMCU ESP8266
Authors: Abidin Adam , Pradipta Andri , Sunardi Sunardi
Published: June 2022

Maglev merupakan dasar teknologi kereta cepat dengan metode pengangkatan sebuah objek terhadap suatu acuan menggunakan medan magnet. Sistem ini digunakan untuk mengurangi gaya gesekan yang ditimbulkan oleh suatu komponen yang melakukan kontak secara langsung. Makalah ini mempelajari sistem kereta maglev dalam rangka pengembangan teknologi sistem kendali pada kereta cepat. Sistem kendali kereta maglev dibuat prototype dan diuji kemampuan dalam hal bergerak maju dijalur lurus, ditikungan dan performa system. Metode kendali pergerakan prototype kereta maglev adalah dengan mengatur gaya tarik dan dorong magnet dari 2 kutub magnet pada sarana dan lintasan menggunakan perintah operator melalui smartphone menggunakan software Blynk. Dalam hal ini sensor hall effect diterapkan untuk mendeteksi kondisi kutub magnet pada lintasan yang selanjutnya digunakan untuk menentukan perubahan kutub magnet buatan yang berada di sarana. Hasil pengujian dari prototype maglev melaju dengan rata-rata kecepatan 0.204 m/s
Kecenderungan Penumpang Menggunakan Moda Kereta Api Antar Kota Dengan Penerapan Protokol Kesehatan Di Era New Normal
Authors: Puspitasari Armyta , Priyanto Sapto
Published: June 2022

ABSTRACT

Health protocol during Covid 19 Pandemic however can reduce the tendency of passengers in using trains as mode of transportation. The inter-city train health protocol is regulated in a circular letter from the Minister of Transportation regarding the guidelines and technical guidelines for rail transportation in the new normal era. The description of the behavior of inter-city train passengers with the application of health protocols is needed as a consideration in implementing further policies. This study uses situational variables, knowledge and personality as predictors of passengers' decisions to use trains with the application of health protocols. The research sample was 96 with random sampling technique. The data that has been collected is then tested with binary logistic regression to generate the tendency of passengers to use trains with the application of health protocols in the new normal era. The results of the study show that situational variables and passenger personalities influence passenger decisions in using the train mode in the new normal era.

 

Keywords: Health protocol, new normal era, consumer behavior, binary logistic regression
Analisis Perilaku Struktur Bantalan Kereta Api dengan Metode Elemen Hingga
Authors: Kurniawan Muhammad Adib , Adi Perwira Dimas , Leliana Arinda
Published: June 2022

Bantalan kereta api di Indonesia rata – rata terbuat dari material beton bertulang, dalam Peraturan Menteri Perhubungan nomor 60 Tahun 2012 disebutkan bahwa persyaratan material beton bertulang yang dapat digunakan untuk bantalan kereta api adalah beton prategang. Metode Elemen Hingga (MEH) merupakan salah satu analisa numerik yang banyak digunakan untuk memecahkan masalah perhitungan struktur. Penggunaan MEH dengan aplikasi membantu mempermudah engineering untuk melakukan iterasi perhitungan, sehingga didapatkan hasil pendekatan yang menyerupai kondisi struktur sesungguhnya. Model bantalan beton kereta api yang digunakan adalah untuk lebar spoor 1067 mm dengan tipe N-67 produksi PT WIKA. Spesifikasi bantalan beton prategang dengan kuat tekan beton fc’ = 52 Mpa dan kuat tarik tulangan baja fy = 1400 Mpa. Properti material untuk memodelkan bantalan beton merujuk pada penelitian (Fistcar, 2019).  Berdasarkan hasil analisa menggunakan software MEH didapatkan nilai tegangan tekan (compressive stress) bantalan beton sebesar 11,706 Mpa dan tegangan tarik (Tensile stress) bantalan beton sebesar 4,362 Mpa, selanjutnya untuk nilai lenduta (displacement) didapatkan hasil 0,083 mm terletak di tengah bantalan.
PELATIHAN KESELAMATAN PENGELASAN MATERIAL STAINLESS STEEL PADA BENGKEL LAS RUMAHAN DESA KLAGENSERUT MADIUN
Authors: Widya Prasetya Henry , Sanjaya Atmaja Dadang , Adi Perwira Dimas , Rozaq Fadli , Kurniawan Safrudin , Isti Pratiwi Damar
Published: June 2022

Desa Klagenserut adalah desa di kecamatan Jiwan, kabupaten Madiun, Jawa Timur, Indonesia. Mata pencaharian utama masyarakat Desa Klagenserut adalah bertani, berdagang dan wirausaha. Selain itu, warga menciptakan lapangan kerja sendiri yang dibutuhkan oleh warga lain. Sebagian warga membuka sebuah usaha dengan membuka sebuah bengkel las rumahan. Mereka mengerjakan beberapa produk dan menghasilkan sebuah produk seperti pembuatan pagar besi, tralis besi, kanopi, tangga besi, perbaikan mesin pertanian dan sebagainya. Bengkel las tersebut mengerjakan produk tersebut dari material besi hollow, besi plat, besi siku dan juga material stainless steel. Material stainless steel ini di masyarakat dikenal sebagai material yang tahan korosi dan mempunyai nilai estetika lebih bagus dibandingkan material logam lainnya. Namun masyarakat Desa Klagenserut khususnya yang membuka usaha dengan membuka bengkel las rumahan, masih belum memahami betul bagaimana cara yang tepat dalam melakukan proses pemotongan, proses penyambungan dan proses pembentukan material stainless steel. Sehingga dibutuhkan sebuah penyuluhan dan pelatihan dalam meningkatkan pengetahuan proses pengelasan pada material stainless steel. Keselamatan dalam proses pemotongan logam dan keselamatan dalam proses pembentukan khususnya pada material stainless steel sangatlah penting, Dengan pelatihan ini semoga warga Desa Klagenserut bisa meningkatkan perekonomian, meningkatkan kesejahteraan, meningkatkan keselamatan dan meningkatkan produk hasil lasan.
UJI EMISI GRATIS DENGAN PEMERINTAH DAERAH KOTA DENPASAR UNTUK PENINGKATAN KUALITAS UDARA PERKOTAAN
Authors: Sulistyo Aris Budi , Cundoko Tumiran Anang , Pradana Adrian , M Dinda One , N Asep Eka , E Surya Aji , N I Gusti Bagus Eka
Published: June 2022

Kegiatan Pengabdian kepada Masyarakat Uji Emisi gratis ini bertujuan untuk mengetahui kelayakan emisi kendaraan roda empat di sekitar Taman Kota Lumintang Denpasar sekaligus untuk mengasah kemampuan Taruna Prodi D.III Teknologi Otomotif Politeknik Transportasi Darat Bali secara langsung di lapangan mengenai pengujian kendaraan bermotor, dan memiliki outcome peningkatan kualitas udara. Metode kegiatan ini adalah melakukan uji emisi secara langsung kepada kendaraan yang melintas dan memberikan stiker lolos uji bagi kendaraan yang memenuhi standar. Alat uji yang digunakan adalah merk Capelec dan Iyasaka untuk masing-masing bahan bakar kendaraan bansin dan solar. Kriteria lolos uji kendaraan bermotor ini kita menggunakan dasar hukum yaitu Peraturan Menteri Lingkungan Hidup Nomor 5 Tahun 2006 tentang Ambang Batas Emisi Gas Buang Kendaraan Bermotor Lama. Kegiatan ini dilakukan melalui kerjasama Politeknik Transportasi Darat Bali dengan Pemerintah Kota Denpasar. Hasil dari kegiatan Pengabdian kepada Masyarakat ini adalah kendaraan roda empat yang memenuhi standar emisi dan lolos uji emisi, sehingga meningkatkan kualitas udara sekitar
FORMATION FEATURES OF EFFECTIVE LOAD AND TECHNICAL CHARACTERISTICS OF UNMANNED AIRCRAFT SYSTEM OF SIGNAL RETRANSLATION FOR GROUND ROBOTIC SYSTEMS CONTROL
Authors: Лопухов Алексей Анатольевич , Осипов Юрий Николаевич , Ершов Владимир Иванович , Симанов Станислав Евгеньевич
Published: June 2022

В статье рассматриваются вопросы возможности применения привязных телекоммуникационных платформ на основе беспилотных воздушных судов (БВС) для ретрансляции сигналов управления наземными робототехническими комплексами (РТК) при выполнении аварийно-спасательных работ в сложных условиях чрезвычайных ситуаций. Актуальность темы обусловлена необходимостью поиска способов защиты системы управления РТК от негативного влияния мощных источников тепла при пожаре, ионизирующего излучения, многочисленных помех, возникающих при плотной городской застройке, когда оператор должен быть удален от управляемого им комплекса на значительное безопасное расстояние.

The article considers the issues of possible using tethered telecommunication platforms on the base of unmanned aerial vehicles (UAV) for signal retranslation of ground robotic complexes (RTC) control when performing emergency rescue operations in emergencies. The relevance of the topic is due to the need to find ways to protect the RTC control system from the negative effects of powerful heat sources in case of fire, ionizing radiation and numerous interferences arising from dense urban development, when the operator must be removed from the complex at a considerable safe distance.
MISSILE FIRE EXTINGUISHING MEANS OF PULSE TYPE
Authors: Казаков Алексей Васильевич , Полтавец Денис Владимирович , Хатунцева Светлана Юрьевна , Григорьев Алексей Владимирович
Published: June 2022

В проведенных многочисленных экспериментах было установлено, что зачастую эффективность при тушении очагов пожара с высокой динамикой развития обеспечивается средствами и способами тушения, позволяющими за короткое время с безопасного для оператора расстояния подать непосредственно в зону горения необходимое количество огнетушащего порошкового состава, оптимальное для его подавления [1-5]. Этой цели в наибольшей степени отвечает импульсный способ подачи.

As a result of numerous experiments it was found that often the effectiveness of fire extinguishing seats with high development dynamics is provided by means and methods of extinguishing, which allow for a short time from a safe for the operator distance to supply directly to the combustion zone the necessary amount of extinguishing powder composition optimal for its suppression [1-5]. The pulse feeding method meets this goal to the greatest extent.
Pengaruh Pemberian Jus Wortel Terhadap Penurunan Derajat Dismenore Pada Remaja Putri SMA Negeri 9 Pekanbaru
Authors: Daniel Martinus Ferry , Gunawan Dahlan , Frida Utari Siska
Published: June 2022

Background

: During menstruation, the most common complaint is menstrual pain or what is known as dysmenorrhea. Dysmenorrhea is characterized by lower abdominal pain. Ways how to overcome dysmenorrhea can be done by various treatments, one of them is drinking nutritious herbal drinks, namely carrot juice. Giving carrot juice contains vitamin E and beta-carotene which can provide analgesic and anti-inflammatory effects with the mechanism of action, namely inhibiting the activity enzymes and cyclooxygenase-2 enzymes so that these enzymes cannot convert arachidonic acid into prostaglandins as a cause of pain. Method: This research method is Pre-Experimental with One Group Pretest Post Test Design which was conducted at SMA Negeri 9 Pekanbaru in November 2021. The number of samples was 66 young women who were taken using the Simple Purposive Sampling technique. The result was analyzed by using the Dependent Sample T Test. Result: The result of the Dependent Sample T Test shows that there is an effect of giving carrot juice in decreasing the degree of dysmenorrhea of adolescent girls of SMA Negeri 9 Pekanbaru with a p- value of 0.000 < 0.05. Conclusion: Based on the result of this study, it can be conclude that there is reduction of the degree of dysmenorrhea of adolescent girls of SMA Negeri 9 Pekanbaru after giving carrot juices. It is highly recommended to respondents to consume carrot juices during menstruation so that it can decreases the discomfort they feel.
Microbiological and Molecular Study of K1, K2 Genes among Klebsiella pneumoniae isolated from Urine Specimens in Duhok city, Iraq
Authors: Qasim Berivan Mohammed , Khalid Haval
Published: June 2022

Klebsiella pneumoniae is a common cause of infections, particularly urinary tract infections (UTIs). Urine samples were taken from 800 patients with clinical indications of UTI who visited the inpatient and outpatient clinics from governorate hospitals and private clinics, namely, Azadi Teaching hospital, Duhok Emergency hospital, Heevi Pediatrics Teaching hospital and Vajeen Private hospital in Duhok city. Standard bacteriological methods were used to identify isolated colonies from urine samples cultured on bacterial media.  A species-specific PCR assay was used to identify K. pneumoneae isolates at molecular level PCR assays and capsular type counting of the K1 and K2 genes were detected among 50 K. pneumoniae isolates. The furthermost predominant genes amongst all isolates were K1 gene (12%) followed by K2 gene (8%). This study emphasized on K. pneumoniae as sources of UTIs that displayed to harboring K1 and K2 genes. The goal of this work was to investigate the mucoviscosity of K.  pneumoniae isolated from a urinary tract infection and to screen for certain virulence factor genes such as K1 and K2 genes.
Dependence of Narrow-line Region Sizes on [O iii] Luminosity in Low-redshift Active Galactic Nuclei with Double-peaked Broad Balmer Emission Lines
Authors: XueGuang Zhang
Published: June 2022

In this paper, simple but interesting results are reported on the upper limits of narrow-line region (NLR) sizes of a small sample of 38 low-redshift (z < 0.1) active galactic nuclei (AGN) with double-peaked broad emission lines (double-peaked BLAGN), in order to check whether the NLR sizes in type-1 AGN (broad line) and type-2 AGN (narrow line) obey a similar empirical dependence on [O iii] luminosity. In order to correct the inclination effects on projected NLR sizes of type-1 AGN, the accretion disk origin is commonly applied to describe the double-peaked broad Hα line, leading to the determined inclination angles of central disk-like broad-line regions of 38 double-peaked BLAGN. Then, considering the fixed Sloan Digital Sky Survey (SDSS) fiber radius, the upper limits of the NLR sizes of the 38 double-peaked BLAGN can be estimated. Meanwhile, a strong linear correlation between continuum luminosity and [O iii] luminosity is applied to confirm that the [O iii] emissions of the 38 double-peaked BLAGN are totally covered in the SDSS fibers. Considering the reddening-corrected measured [O iii] luminosity, the upper limits of the NLR sizes of the 38 double-peaked BLAGN are within a 99.9999% confidence interval of the expected results from the empirical relation between NLR size and [O iii] luminosity in type-2 AGN. In the current understanding, there are no challenges to the unified model of AGN through the space properties of NLRs.
An Insight-HXMT Dedicated 33 day Observation of SGR J1935+2154. II. Burst Spectral Catalog
Authors: Cai Ce , Xiong Shao-Lin , Lin Lin , Li Cheng-Kui , Zhang Shuang-Nan , Xue Wang-Chen , Tuo You-Li , Li Xiao-Bo , Ge Ming-Yu , Zhao Hai-Sheng , Song Li-Ming , Lu Fang-Jun , Zhang Shu , Li Qing-Xin , Xiao Shuo , Guo Zhi-Wei , Xie Sheng-Lun , Zhang Yan-Qiu , Yi Qi-Bin , Zhao Yi , Zhang Zhen , Liu Jia-Cong , Zheng Chao , Wang Ping
Published: June 2022

Since 2020 April 28, Insight-HXMT has implemented a dedicated observation on the magnetar SGR J1935+2154. Thanks to the wide energy band (1–250 keV) and high sensitivity of Insight-HXMT, we obtained 75 bursts from SGR J1935+2154 during a month-long activity episode after the emission of FRB 200428. Here we report the detailed time-integrated spectral analysis of these bursts and the statistical distribution of the spectral parameters. We find that for ∼15% (11/75) of SGR J1935+2154 bursts, the CPL model is preferred, and most of them occurred in the later part of this active epoch. In the cumulative fluence distribution, we find that the fluence of bursts in our sample is about an order of magnitude weaker than that of Fermi/GBM, but it follows the same power-law distribution. Finally, we find a burst with similar peak energy to the time-integrated spectrum of the X-ray burst associated with FRB 200428 (FRB 200428-Associated Burst), but the low energy index is harder.
Stability Constrained Characterization of the 23 Myr Old V1298 Tau System: Do Young Planets Form in Mean Motion Resonance Chains?
Authors: Tejada Arevalo Roberto , Tamayo Daniel , Cranmer Miles
Published: June 2022

A leading theoretical expectation for the final stages of planet formation is that disk migration should naturally drive orbits into chains of mean motion resonances (MMRs). In order to explain the dearth of MMR chains observed at Gyr ages (<1%), this picture requires such configurations to destabilize and scramble period ratios following disk dispersal. Strikingly, the only two known stars with three or more planets younger than ≲100 Myr, HR 8799 and V1298 Tau, have been suggested to be in such MMR chains, given the orbits’ near-integer period ratios. We incorporate recent transit and radial velocity (RV) observations of the V1298 Tau system, and investigate constraints on the system’s orbital architecture imposed by requiring dynamical stability on timescales much shorter than the system’s age. We show that the recent RV mass measurement of V1298 Tau b places it within a factor of 2 of the instability limit, and that this allows us to set significantly lower limits on the eccentricity (e

b
≤0.17 at 99.7% confidence). Additionally, we rule out a resonant chain configuration for V1298 Tau at ≳99% confidence. Thus, if the ∼23 Myr old V1298 Tau system did form as a resonant chain, it must have undergone instability and rearrangement shortly after disk dispersal. We expect that similar stability constrained characterization of future young multiplanet systems will be valuable in informing planet formation models.
Electromagnetic Fireworks: Fast Radio Bursts from Rapid Reconnection in the Compressed Magnetar Wind
Authors: Mahlmann J. F. , Philippov A. A. , Levinson A. , Spitkovsky A. , Hakobyan H.
Published: June 2022

One scenario for the generation of fast radio bursts (FRBs) is magnetic reconnection in a current sheet of the magnetar wind. Compressed by a strong magnetic pulse induced by a magnetar flare, the current sheet fragments into a self-similar chain of magnetic islands. Time-dependent plasma currents at their interfaces produce coherent radiation during their hierarchical coalescence. We investigate this scenario using 2D radiative relativistic particle-in-cell simulations to compute the efficiency of the coherent emission and to obtain frequency scalings. Consistent with expectations, a fraction of the reconnected magnetic field energy, f ∼ 0.002, is converted to packets of high-frequency fast magnetosonic waves, which can escape from the magnetar wind as radio emission. In agreement with analytical estimates, we find that magnetic pulses of 1047 erg s−1 can trigger relatively narrowband GHz emission with luminosities of approximately 1042 erg s−1, sufficient to explain bright extragalactic FRBs. The mechanism provides a natural explanation for a downward frequency drift of burst signals, as well as the ∼100 ns substructure recently detected in FRB 20200120E .
Revisiting a Disky Origin for the Faint Branch of the Sagittarius Stellar Stream
Authors: Oria Pierre-Antoine , Ibata Rodrigo , Ramos Pau , Famaey Benoit , Errani Raphaël
Published: June 2022

We investigate ways to produce the bifurcation observed in the stellar stream of the Sagittarius dwarf galaxy (Sgr). Our method consists of running N-body simulations of Sgr falling into the Milky Way for the last 3 Gyr, with added test particles on disk orbits that span a wide range of initial positions, energies, and angular momenta. We find that particles that end up in the faint branch are predominantly high-angular-momentum particles that can all originate from a single plane within the progenitor, nearly perpendicular both to the orbital plane of the progenitor and to the Milky Way stellar disk. Their original configuration at the start of the simulation corresponds to spiral features already present 3 Gyr ago, which could be, e.g., the result of a disk-like component being tidally perturbed, or the tidal tails of a satellite being disrupted within Sgr. We then run a simulation including the self-gravity of this disky component. Despite the remaining ambiguity of its origin, this disk component of the Sgr dwarf with spiral overdensities provides a first step toward a working model to reproduce the observed faint branch of the bifurcated Sgr stream.
The Local Stellar Halo is Not Dominated by a Single Radial Merger Event
Authors: Donlon II Thomas , Newberg Heidi Jo , Kim Bokyoung , Lépine Sebastien
Published: June 2022

We use halo dwarf stars with photometrically determined metallicities that are located within 2 kpc of the Sun to identify local halo substructure. The kinematic properties of these stars do not indicate a single, dominant radial merger event (RME). The retrograde Virgo Radial Merger (VRM) component has [Fe/H] = −1.7. A second, nonrotating RME component we name Nereus is identified with [Fe/H] = −2.1 and has similar energy to the VRM. We identify a possible third RME, which we name Cronus, that is corotating with the disk, has lower energy than the VRM, and has [Fe/H] = −1.2. We identify the Nyx Stream in the data. In addition to these substructures, we observe metal-poor halo stars ([Fe/H] ∼ −2.0 and σ

v
∼ 180 km s−1) and a disk/Splash component with lower rotational velocity than the disk and lower metallicity than typically associated with the Splash. An additional excess of halo stars with low velocity and metallicity of [Fe/H] = −1.5 could be associated with the shell of a lower-energy RME or indicate that lower-energy halo stars have higher metallicity. Stars that comprise the “Gaia Sausage” velocity structure are a combination of the components identified in this work.