bluuebunny/crossref_metadata_2025 huggingface dataset:
Determining the role chiropractic plays in the management of tension-type headache
Authors:   , Penter Christopher Sean
Published: December 2021

The effectiveness of chiropractic management of tension-type headache was evaluated in a single blind, randomised, placebo controlled tr ial us ing a pat ient populat ion of thirty (30) individuals who were suffering from tension-type headache
A clinical trial to investigate the relative effectiveness of acetaminophen with caffeine as opposed to cervical manipulation in the treatment of tension-type headache
Authors:   , Thomson Deborah Anne
Published: December 2021

Tension-type headache is generally accepted as the most common form of headache and has been shown to have a great impact on work and social activities (Shwartz et al. 1998). Tension-type headache occurs in 39% of people who suffer from headache symptoms with a higher incidence among females, and a peak in the 25-44 year old age group (Wong et al. 1995). The purpose of this study was to investigate the relative effectiveness of 1000mg acetaminophen (paracetamol) combined with 130mg caffeine as opposed to cervical manipulation as a treatment for tension-type headache.
The effect of a humic preparation on apple seedlings
Authors: Popov Artem , Matyugin Vladislav , Polienko Elena , Bezuglova Olga
Published: December 2021

Under the conditions of a field experiment the effect of the humic preparation BIO-Don on the growth of apple seedlings of the Vishnevaya variety was studied. The humic preparation was used in the form of a diluted solution in various ways: with irrigation water under the root of the plant, spraying on the leaf, and a combination of application to the soil with foliar treatment. The results have shown that in the first month after treatment, there is a noticeable advance in plant growth in all variants with the humic preparation, however, a statistically significant increase in growth was noted only in the variant with leaf treatment. The greatest increase in the thickness of the trunk was observed in the variant with a combination of the first two methods (application to the soil + foliar treatment). Keywords: HUMIC PREPARATION, APPLE SEEDLINGS, CALCIC CHERNOZEM, NUTRITIONAL ELEMENTS
Motivasi Belajar Siswa Terhadap Penggunaan Macromedia Flash 8 Dimasa Pandemi Covid-19
Authors: Mayana Inda , Sthephani Aulia , Effendi Leo Adhar , Yolanda Fitriana
Published: December 2021

Di situasi saat ini yaitu Covid-19 meyebabkan seluruh pembelajaran dilakukan secara online. Dalam proses pembelajaran daring banyak kendala yang dialami terutama terhadap siswa, yang menyebabkan kurangnya minat untuk mengikuti pembelajaran matematika secara optimal. Sehubung dengan hal tersebut, guru harus memiliki berbagai cara untuk membangkitkan motivasi siswa ketika mengikuti pembelajaran yang berlangsung. Salah satunya adalah menggunakan media pembelajaran berbasis teknologi yaitu Macromedia Flash 8. Tujuan dari penelitian ini untuk mendeskripsikan motivasi belajar siswa terhadap penggunaan macromedia flash 8 di masa pandemi Covid-19. Jenis penelitiannya yaitu deskriptif dengan pendekatan kuantitatif, sampel penelitian ini adalah 20 siswa kelas X SMKN Pertanian Terpadu Provinsi Riau yang dipilih melalui teknik simple random sampling. Data didapat melalui google form yang berisikan pernyataan meliputi 4 aspek penilaian macromedia flash 8 yakni perhatian, relevansi, percaya diri, dan kepuasan. Pada hasil penelitian ini menunjukan adanya dampak positif terhadap motivasi belajar siswa dengan menggunakan macromedia flash 8 sebagai media pembelajaran dimasa pandemi dengan persentase rata-rata 71,5%. Dari penelitian ini diperoleh bahwasanya macromedia flash 8 bisa menjadi media pembelajaran matematika di masa pandemi, karena memiliki berbagai keunggulan yang dapat meningkatkan motivasi belajar siswa.
Pengembangan Perangkat Pembelajaran Matematika dengan Metode Penemuan Terbimbing pada Materi Bangun Ruang Sisi Lengkung
Authors: Hasanah Endang Nurul , Abdurrahman  , Rezeki Sri , Sthephani Aulia
Published: December 2021

Penelitian ini bertujuan untuk menghasilkan perangkat pembelajaran matematika dengan metode penemuan terbimbing pada materi bangun ruang sisi lengkung yakni berupa Rencana Pelaksanaan pembelajaran (RPP) dan lembar Kerja Peserta Didik (LKPD) yang teruji kevalidannya. Penelitian pengembangan perangkat pembelajaran matematika ini menggunakan model Research and Development (R&D). Tetapi dikarenakan adanya pandemi COVID-19 hanya 6 tahapan saja yang dilakukan yaitu 1) potensi & masalah, 2) pengumpulan data, 3) desain produk, 4) validasi desain, 5) revisi desain dan 6) produk akhir. Instrumen pengumpulan data yang digunakan adalah lembar validasi RPP dan lembar validasi LKPD. Teknik pengumpulan data yang digunakan adalah non tes dengan menggunakan angket lembar validasi dari 2 orang dosen pendidikan matematika FKIP UIR dan 1 orang guru matematika SMP Negeri 4 Kunto Darussalam. Teknik analisis data yang digunakan adalah analisis deskriptif kuantitatif yaitu dari analisis data validasi. Dari hasil penelitian diperoleh hasil validasi RPP sebesar 88,53% dengan kategori sangat valid dan LKPD sebesar 88,71% dengan kategori sangat valid. Berdasarkan hasil penelitian ini diperoleh perangkat pembelajaran matematika dengan metode Penemun Terbimbing pada materi Bangun Ruang Sisi Lengkung kelas IX SMP yang teruji kevalidannya.
Groundwater Recharge Estimation Using Water Budget and Water Table Fluctuation Method in the Jakarta Groundwater Basin
Authors:   Research Center for Geotechnology, Indonesian Institute of Sciences (LIPI), Nugraha Gumilar Utamas , Lubis Rachmat Fajar , Bakti Hendra , Hartanto Priyo
Published: December 2021

The Jakarta Groundwater Basin is one of the groundwater basins with the highest development, economic, and business activities in Indonesia. Groundwater damage has become a major growing issue in the Jakarta groundwater basin. Intensive development has led to the overuse of groundwater in this basin. Efforts are needed to manage, protect, and conserve groundwater in this basin to support the development and economic activities sustainably. Jakarta, as the capital city of Indonesia, is located in the groundwater basin. Groundwater sustainability is determined by the amount of groundwater recharge in those basins, so knowledge of groundwater recharge is important. Groundwater is an important part of a hydrological cycle, and groundwater recharge ensures groundwater sustainability in some areas. This study aims to estimate groundwater recharge in the Jakarta groundwater basin using the water budget and water table fluctuation method. The water budget method used is Thornthwaite, Dingman, and Edijatno-Michel. The Water Table Fluctuation methods used are Dellin and Delottier. Analysis of the amount of groundwater recharge estimation is carried out using the ESPERE Version 2 software. Output data is then further analyzed using descriptive and inferential statistical approaches to determine whether there is a difference in groundwater recharge amount based on the water budget and water table fluctuation. The results show that groundwater recharge based on water budget methods is 209–885 mm/year. The estimation of the largest amount of recharge was obtained using the Edijatno-Michel approach. The smallest amount of recharge was estimated using the Dingman-Hamon method. The average recharge of groundwater in Tanjung Priok is 305 mm/year, Kemayoran is 209 mm/year, and Bogor is 885 mm/year. Only 8–15 % of the annual rainfall that converted into groundwater recharge at the study area. Based on the analysis using the water table fluctuation method, groundwater recharge in this basin has a value of 240 mm/year. The variation of the amount of groundwater recharge is caused by the pros and cons of each method. Apart from that, geological factors, land use/land cover factors, and climatic variations in this basin can affect the research results. By considering the amount of groundwater recharge, groundwater management in the Jakarta groundwater basin needs to be carried out for harmonious development and groundwater conservation.
Pengaruh Motivasi Instrinsik, Kompetensi dan Pengawasan Pimpinan Terhadap Kinerja Pegawai Dinas Perhubungan Kota Gunungsitoli
Authors: Larosa Erwin Meiman , Pane Sri Gustina
Published: December 2021

Penelitian ini bertujuan untuk mengetahui dan menganalisis seberapa besar Pengaruh Motivasi Instrinsik, Kompensasi dan Pengawasan Pimpinan terhadap Kinerja Pegawai Dinas Perhubungan Kota Gunungsitoli. Populasi dalam penelitian ini adalah seluruh pegawai di lingkungan Dinas Perhubungan Kota Gunungsitoli yang berjumlah 40 orang. Teknik pengambilan sampel yang digunakan dalam penelitian ini dengan menggunakan metode sensus dimana seluruh populasi menjadi sampel penelitian. Penelitian ini menggunakan metode penelitian korelasional. Data dianalisis dengan analisis statistik deskriptif dan regresi linear berganda. Pengumpulan data dalam penelitian ini menggunakan kuesioner yang diwujudkan dalam bentuk pernyataan. Hasil penelitian menunjukkan motivasi intrinsik berpengaruh positif dan signifikan terhadap kinerja pegawai di lingkungan Dinas Perhubungan Kota Gunungsitoli, kompensasi berpengaruh positif dan signifikan terhadap kinerja pegawai di lingkungan Dinas Perhubungan Kota Gunungsitoli, pengawasan pimpinan berpengaruh positif dan signifikan terhadap kinerja pegawai di lingkungan Dinas Perhubungan Kota Gunungsitoli dan secara simultan motivasi intrinsik, kompensasi dan pengawasan pimpinan berpengaruh positif dan signifikan terhadap kinerja pegawai di lingkungan Dinas Perhubungan Kota Gunungsitoli.
Hubungan Psychological well-being dengan Kepuasan Kerja pada Tenaga Kesehatan Honorer Puskesmas Mangunjaya Kabupaten Pangandaran
Authors: Hardianto Yoga , Islamiati Nurseda
Published: December 2021

Penelitian ini bertujuan untuk melihat hubungan psychological well-being dengan kepuasan kerja pada tenaga kesehatan honorer Puskesmas Mangunjaya Kabupaten Pangandaran. Penelitian ini menggunakan teori dari Ryff (1989) psychological well-being dan Luthans (2011) kepuasan kerja, penelitian ini menggunakan pendekatan induktif dan metode kuantitatif dengan jenis penelitian korelasional. Teknik sampling yang digunakan adalah teknik total sampling. Teknik pengumpulan data dalam penelitian ini menggunakan kuesioner dari alat ukur Psychological well-being yang diadaptasi dari Ryff Scale of Psychological well-being (1989), kemudian untuk kepuasan kerja menggunakan kuesioner yang dibuat sendiri mengacu kepada teori Luthans (2011). Hasil uji korelasi antara variabel Psychological well-being dengan Kepuasan Kerja sebesar 0,414 dengan signifikan 0,004 (p
Pentingnya Teknik Empati Dalam Proses Konseling Individual
Authors: Yunita Yunita
Published: December 2021

Artikel ini menjelaskan tentang pentingnya teknik empati dalam proses konseling individual. Teknik empati adalah menyelaraskan diri (peka) terhadap apa, bagaimana, dan latar belakang perasaan dan pikiran orang lain sebagaimana orang tersebut merasakan dan memikirkannya. Teknik empati merupakan salah satu dari berbagai teknik dalam proses konseling. Sedangkan Proses Konseling adalah proses bantuan yang dilakukan melalui wawancara, yang dilakukan oleh seorang ahli disebut konselor kepada individu yang sedang mengalami suatu masalah disebut konseli apabila di lingkungan formal dan disebut klien apabila diluar lingkungan formal. Tujuan dari dilakukan konseling adalah bermuara pada teratasinya masalah yang sedang dialami. Individual atau sendiri adalah mengenai atau berhubungan dengan manusia secara pribadi yang bersifat perseorangan. Dimana Proses konseling individual hanya dapat dilakukan secara face to face dengan kata lain tidak ada orang lain atau orang ketiga selain dari konselor dan klien. Proses konseling individual tidak hanya dapat dilakukan didalam ruangan melainkan dapat dilakukan diluar ruangan seperti halaman, taman, dan lain-lain. Diharapkan setelah membaca artikel ini dapat melakukan proses konseling individual dengan menggunakan teknik empati secara maksimal dan efektif baik di lingkungan formal, non formal dan informal.
TABAGISMO COMO PROBLEMA NA SEGUNDA METADE DO ANO 2021, QUANTO AVANÇAMOS A RESPEITO?
Authors: Santos Cláudio Henrique Facundo dos , Cavalcante Larêssa Pinheiro , Silva Filho Marcos José Firmino da , Silva Roberto de Barros
Published: December 2021

O tabagismo é uma doença crônica, caracterizado pelo consumo excessivo de produtos à base de tabaco, sendo causada pela dependência a nicotina.  Ainda no ano de 2021, o tabaco representa um dos maiores insultos para a saúde pública do mundo pela sua alta prevalência e distribuição. É a segunda droga mais usada pela humanidade, ficando atrás apenas do álcool e na frente da Cocaína, está relacionado a doenças crônicas como câncer de pulmão, câncer de laringe, enfisema pulmonar, entre outras, representado custos de milhões de dólares nos sistemas de saúde.
EL GÉNERO Y SU INCIDENCIA EN LOS EMPRENDIMIENTOS DE LOS GRADUADOS EN MARKETING. ULEAM, 2015-2019
Authors: Valencia Vásquez Washington Lenin , Loor Chávez Deodato , Ponce Valdez Priscella María , Palacios Molina Dayni Lisset
Published: December 2021

El género desde hace mucho tiempo ha sido un factor predominante para desarrollar algún tipo de actividad económica, es así que la actividad de emprender no es la excepción, debido a que el emprendimiento tanto del hombre como de la mujer se encuentra condicionado de acuerdo a la manera en cómo se configure cada actividad económica y como la personalidad de ambos sujetos varía en función de su género, modificando la forma en la que cada individuo se desenvuelve en la administración de un negocio. El presente trabajo de investigación tuvo como objetivo determinar de qué manera el género incide en los emprendimientos de los graduados de la carrera de Marketing de la Universidad Laica “Eloy Alfaro” de Manabí periodo 2015-2019. El estudio conto con una metodología cuali-cuantitativa, con la aplicación del método inductivo y deductivo, junto a un diseño exploratorio, descriptivo, explicativo, correlacional, transversal, no experimental, bibliográfico. Mediante el programa SPSS 25, con el coeficiente de correlación p (Rho) de Spearman, se pudo comprobar la hipótesis general y específicas, demostrando que tanto el género como los factores psicosociales, sociológicos, socioeconómicos y modelo de negocio inciden en los emprendimientos de los graduados de la carrera de Marketing de la Universidad Laica "Eloy Alfaro" de Manabí periodo 2015-2019, alcanzando respectivamente los siguientes coeficientes de (0,982), (0.993), (0,958), (0,982) y (0,958), significando que se validan positiva y significativamente.
Prediction Of Medical Actions For Covid Patients Using Naïve Bayes Method
Authors: Arfan Haqiqi  , - Rais , Istiqomah Dwi Andari  , Siti Fatimah
Published: December 2021

Management of medical actions carried out in handling patients who are ODP (people under monitoring), OTG (asymptomatic people), PDP (patient under monitoring) and positive Covid-19 patients is carried out based on assumptions, such as self-isolation, hospitalization, or special treatments in the ICU (Intensive Care Unit) room. The condition of the body in each patient is different, a patient may have same symptoms but the treatment is different, especially in elderly patients. Many problems occur in determining medical action because the patient's body condition is different. Therefore, it needs to be appointed as a research. The research method used in this study was Nive Bayes algorithm with supporting application Rapid Miner. It was applied to carry out the process of testing on patient data as much as 500 data, 25 variables or patient symptoms and 3 outputs as a form of medical action. Based on the results of the analysis carried out in this study, prediction of medical actions for ODP, PDP, OTG and positive Covid-19 patients were obtained by comparing training data with testing data using Rapid Miner application. It resulted that an accuracy rate of 76.00% was obtained
Artificial Intelegence APLIKASI PEMILIHAN BERAS BERDASARKAN REFERENSI KONSUMEN MENGGUNAKAN FUZZY LOGIC
Authors: Rika Widya Perdana
Published: December 2021

Rice is the most important staple food for humans to have energy to carry out activities. The purpose of this study is to provide information to the public in the form of a reference for selecting rice based on consumer interest, so that it can be used as a decision making in buying rice. The Mamdani method is a method that is able to solve problems in the case of rice selection based on consumer references. The work process of the Sugeno method consists of four parts, namely fuzification, inference engine, implication function amplification and the last one is defuzzification. The final result, the Mamdani method has the characteristics of using the AND operator and using the min-max value. This research is in the form of a decision-making system in rice selection based on references from consumers by looking at four aspects of criteria such as price, quality, taste, and shape variables, these four aspects can be used as a reference in rice selection. Sugeno fuzzy logic to get the final value.The Mamdani method is a very effective method in selecting rice according to the needs and interests of consumers so that potential consumers can easily choose rice according to their interests and desired criteria.
Analisa Variabel Pengaruh Kinerja Karyawan Pada PT. XYZ menggunakan Regresi Linear Berganda
Authors: Kristianto Ariel
Published: December 2021

Many companies require good employee performance in order to achieve company goals, business competition is a trigger for companies to improve the performance of their employees. The variables used to determine the effect of the company's employee performance are discipline, compensation, work environment and training. This research was conducted on employees of PT. XYZ involved 60 respondents. This study uses a saturated sampling technique and uses a Likert scale. The analysis used was multiple linear analysis, with the regression equation Y = 16.349 + 0.068X1 + 0.001X2 + 0.159X3 + 0.287X4. The conclusions of this study are, (1) employee performance is not significantly affected by discipline, (2) employee performance is not significantly affected by compensation, (3) employee performance is not significantly affected by the work environment, (4) employee performance is significantly influenced by training, (5) Employee performance is influenced simultaneously by discipline, compensation, work environment and training.
METODE PENGADUAN FASILITAS PERKULIAHAN DAN PRAKTIKUM BERBASIS WEB (STUDI KASUS: STIKOM UYELINDO KUPANG)
Authors: Gregorius Gregorius Rinduh Iriane , Delfiana Khatarina Tangkuya
Published: December 2021

The more rapid development of universities in Indonesia, the competition between universities is getting bigger so that the quality and facilities of each university greatly affect the attractiveness and competitiveness of universities. College of Computer Informatics Management (STIKOM) Uyelindo Kupang has 672 students. The campus of STIKOM Uyelindo Kupang has three departments, namely, first-class informatics engineering, undergraduate information systems and D3 informatics engineering with each accredited B. The development and improvement of lecture and practicum facility services at (STIKOM) Uyelindo Kupang is very important to be monitored and maintained. If the campus has provided services and facilities for students but these services and facilities are not monitored and maintained, sooner or later the services and facilities provided will be damaged and can no longer be used. The purpose of this research is to build a complaint information system website for lecture facilities and practicum to help and facilitate students. Based on the results of the test analysis using the Slovin method, there is an average value of 87% with Strongly Agree (SS) criteria. Even with the index value, when viewed based on the type of variable, there are several question items with unfavorable criteria. Question items with these criteria need to be considered for future website development. In the future, the website development will take into account the lowest index value of each indicator, especially those with poor and bad criteria.
PENERAPAN METODE PERBANDINGAN EXPONENSIAL (MPE) PENENTUAN PENERIMAAN BERAS SEJAHTRA (RASTRA) DI DESA TOBU
Authors: Katemba Petrus , Niklinton Nehemia Neolak
Published: December 2021

This research was made with the aim of developing the application of determining the recipient of Rastra (Rice Prosperous) aid in Tobu Village. South middle Timor district by applying the exponential comparison method. Variables or criteria used in this study are work, income, number of dependents, building area and housing conditions and detailed criteria on each variable. This research succeeded in developing an application ranking community beneficiaries of Rastra in Tobu village by using the exponential comparison method (MPE). In this application provides a graphical display feature, print reports that will be used to print and view the results of the ranking of people who are entitled to receive Sejahtera ria.
Intraseasonal variability of ocean surface wind waves in the western South Atlantic: the role of cyclones and the Pacific South American pattern
Authors: Sasaki Dalton K. , Gramcianinov Carolina B. , Castro Belmiro , Dottori Marcelo
Published: December 2021

Abstract. Extratropical cyclones are known to generate extreme significant wave height (swh) values at the ocean surface in the western South Atlantic (wSA), which are highly influenced by intraseasonal scales. This work aims to investigate the importance of intraseasonal timescales (30–180 d) in the regional climatology of waves and its atmospheric forcing. The variability is explained by analyzing the storm track modulation due to westerly winds. These winds present timescales and spatial patterns compatible with the intraseasonal component of the Pacific South American (PSA) patterns. The analyses are made using ECMWF’s ERA5 from 1979 to 2019 and a database of extratropical cyclones based on the same reanalysis. Empirical orthogonal function (EOF) analyses of the 10 m zonal wind and swh are used to assess the regime of westerlies and waves in the wSA. The EOF1 of the 10 m zonal wind (u10) presented a core centered at 45∘ W and 40∘ S, while the EOF2 is represented by two cores organized into a seesaw pattern with a center between 30–40∘ S and another to the south of 40∘ S. Composites of cyclone genesis and track densities as well as swh fields were calculated based on the phases of both EOFs. In short, EOF phases presenting cores with a positive (negative) u10 anomaly provide a favorable (unfavorable) environment for cyclone genesis and track densities and, therefore, positive (negative) swh anomalies. The modulation of the cyclone tracks is significant for extreme values of the swh. The spatial patterns of the EOFs of u10 are physically and statistically consistent with 200 and 850 hPa geopotential height signals from the Pacific, indicating the importance of the remote influence of the PSA patterns over the wSA.
OBSERVATIONS OF SUBSTORM ACTIVITY FROM THE DATA OF MAIN CAMERA SYSTEM AND THD SATELLITE IN THE PLASMA SHEET
Authors:   Polar Geophysical Institute, Apatity, Russia, Despirak I.V. , Kozelova T.V. ,   Polar Geophysical Institute, Apatity, Russia, Kozelov B.V. ,   Polar Geophysical Institute, Apatity, Russia, Lubchich A.A. ,   Polar Geophysical Institute, Apatity, Russia
Published: December 2021

We investigated an interesting case of the space-time dynamics of substorm activations (AL ~ 800 nT) on December 24, 2014, when there were simultaneous observations on the THEMIS D satellite in the plasma sheet (|X| ~ 6.2 RE) and ground-based observations on the Kola Peninsula. The development of the substorm activity in the interval of ~ 19:00 to ~ 20:00 UT was considered. In this interval, at Lovozero station (LOZ), three peaks in the Pi1B pulsations were recorded, associated with the brightening of arcs near LOZ. The first peak was observed in connection with the appearance of beads structures in the auroras along the growth phase arc to the south from LOZ latitude. The second and third peaks in Pi1B pulsations were associated with the expansion phase, when three dipolarization fronts (DFs) were registered according THD data. DFs and injection of energetic electrons into the magnetosphere were observed near the moments of sudden intensification of auroras: brightening of arcs, breakup in aurora. Besides, it was shown that the development of substorm occurs near the Harang discontinuity (HD) according to the IMAGE magnetometers data. In this case, we can follow the development of aurora around the HD according to the data of the all sky camera in Apatity. It was shown that the pre-onset auroral forms were moved accordingly the two-cell ionospheric convection developed during the growth phase of the substorm.
ФЛУКТУАЦИИ GPS-СИГНАЛОВ И ОШИБКИ ПОЗИЦИОНИРОВАНИЯ В ПОЛЯРНОЙ И АВРОРАЛЬНОЙ ИОНОСФЕРЕ В НОЯБРЕ 2012 ГОДА
Authors:   Калининградский филиал ИЗМИРАН, Калининград, Россия, Шагимуратов И.И. , Ефишов И.И. ,   Калининградский филиал ИЗМИРАН, Калининград, Россия, Филатов М.В. ,   ФГБНУ «Полярный геофизический институт», Апатиты, Россия, Захаренкова И.Е. ,   Калининградский филиал ИЗМИРАН, Калининград, Россия, Тепенитцина Н.Ю. ,   Калининградский филиал ИЗМИРАН, Калининград, Россия, Якимова Г.А. ,   Калининградский филиал ИЗМИРАН, Калининград, Россия
Published: December 2021

В работе дано сопоставление проявления фазовых флуктуаций GPS-сигналов и их воздействия на точность позиционирования на полярной NYA1 и авроральной TRO1 станциях для ноября 2012г. Представлен детальный анализ особенностей и различий ионосферных эффектов на обсуждаемых станциях во время конкретных геофизических условий.
THE INVESTIGATION OF THE PG PULSATIONS WITH USING DATA OF ARASE, GOES SATELLITES AND GROUND-BASED STATIONS
Authors:   Polar Geophysical Institute, Apatity, Russia, Belakhovsky V.B. , Pilipenko V.A. ,   Institute of the physics of the Earth, Moscow, Russia, Shiokawa K. ,   Institute for Space-Earth Environmental Research, Nagoya, Japan, Miyoshi Y. ,   Institute for Space-Earth Environmental Research, Nagoya, Japan
Published: December 2021

The physical nature of Pg (pulsation giant) pulsations, which were observed in the magnetosphere by the Japanese satellite Arase, geostationary satellites GOES, and ground stations of the THEMIS and CARISMA networks, was investigated in this work. Pg pulsations belong to the Pc4 frequency range and are characterized by a very monochromatic shape. For the event on 5 June, 2018, according to the data from the Arase satellite, the Pg pulsation wave packet was recorded in the dawn sector during 3 hours. The pulsations are most pronounced in the radial component of the geomagnetic field, their frequency was about 11 mHz. Pg pulsations observed in the magnetosphere were accompanied by pulsations with the same period according to data from a number of ground-based magnetic stations located near the conjugate point. According to the data of ground stations, the pulsations were most strongly expressed in the Y-component of the geomagnetic field. Pg pulsations were accompanied by pulsations in electron and proton fluxes according to the Arase, GOES satellite observations. There are no clear phase relationships between geomagnetic pulsations and pulsations in charge particle fluxes. Pg pulsations were excited under quiet geomagnetic conditions (SYM-H = -10 nT, AE = 100-400 nT) on the recovery phase of the small geomagnetic storm. It is assumed that the expansion of the plasmasphere at low geomagnetic activity leads to an increase in the plasma density in the region of the geostationary orbit, which creates favorable conditions for the excitation of Pg pulsations due to the drift-bounce resonance of protons with the geomagnetic field lines oscillations in the magnetosphere.
EIGEN ENERGY EXCHANGE MODES OF MAGNETOSPHERE AT LONG-LASTING STOCHASTIC COUPLING WITH SOLAR WIND
Authors:   Belkin International Inc., Los Angeles, USA, Moldavanov A.V.
Published: December 2021

Simulation of energy evolution for magnetosphere having infinite number of energy links with solar wind in assumption that all links are executed by energy continuity equation is conducted. Found closed form solution  is a function of magnetosphere’s energy exchange rate y and in its physical meaning it is an integral efficiency of energy exchange. It is shown that quantity  is confined by the rate y. As a result,  and the total exchange energy E can take on certain discrete levels, as a result the spectrum for  and E is quantized.
SPECTRAL ANALYSIS AND FORECASTING OF THE 25TH SOLAR CYCLES
Authors:   The Pushkov Institute of Terrestrial Magnetism, Ionosphere and Radio Wave Propagation, Moscow, Troitsk, Rozhdestvensky D.B. , Rozhdestvenskaya V.I. ,   The Pushkov Institute of Terrestrial Magnetism, Ionosphere and Radio Wave Propagation, Moscow, Troitsk, Telegin V.A. ,   The Pushkov Institute of Terrestrial Magnetism, Ionosphere and Radio Wave Propagation, Moscow, Troitsk
Published: December 2021

In the present work, we propose an extrapolation method, developed on the basis of spectral analysis, digital filtering, and the principle of demodulation of a complex signal, for predicting the beginning of cycle 25 of solar activity. The Wolf number and other measured characteristics of solar activity have a very complex spectral composition. The Sun, by the nature of its radiation, contributes a significant stochastic component to the observational data. The experimental data are known only up to the present, and the prediction is about bridging the gap in our data set. Mathematically, the prediction problem boils down to extrapolation of discontinuous functions, which leads to a Gibbs phenomenon that occurs at the point of discontinuity and makes prediction into the future impossible. To overcome this discontinuity, additional physical models describing a continuous process are most often used. This paper uses only the Wolf series of numbers from 1818 to 2020. The authors developed an original forecasting technique using Fourier series, digital filtering and representation of the complex process as modulated and subsequent demodulation. As a result of decomposing the complex signal by Fourier series into separate components, the spectral ranges characteristic of the Wolf number were singled out. Taylor's series was used for construction of prediction or extrapolation algorithms. The extraction of spectral ranges, characteristic for the investigated process, is carried out by means of sequential digital filtering methods and information compression in accordance with the cut-off frequency of the digital filter. For example, when selecting eleven-year cycles of solar activity, we have to compress the information by a factor of 160. With such a processing scheme, the forecasting starts with the ultralow-frequency component with a period of more than 11 years, successively moving to the ranges of higher frequencies. The use of spectral analysis and Chebyshev filtering showed the possibility to predict the low-frequency component for the full cycle period. The eleven-year component forecast obtained by the authors is in good agreement with the data of the Brussels Royal Center.
О ВОЗМОЖНОСТИ ИССЛЕДОВАНИЯ СВЯЗИ ПОЛЯРНЫХ СИЯНИЙ И ИНДЕКСОВ СЦИНТИЛЛЯЦИЙ ПО ОПТИЧЕСКИМ И GNSS ДАННЫМ
Authors:   ФГБНУ «Полярный геофизический институт», г. Апатиты, Россия, Пильгаев С.В. , Козелов Б.В. ,   ФГБНУ «Полярный геофизический институт», г. Апатиты, Россия, Филатов М.В. ,   ФГБНУ «Полярный геофизический институт», г. Апатиты, Россия, Федоренко Ю.В. ,   ФГБНУ «Полярный геофизический институт», г. Апатиты, Россия, Ларченко А.В. ,   ФГБНУ «Полярный геофизический институт», г. Апатиты, Россия, Ролдугин А.В. ,   ФГБНУ «Полярный геофизический институт», г. Апатиты, Россия, Будников П.А. ,   ФГБУ "Институт прикладной геофизики имени академика Е.К.Федорова", Москва, Россия
Published: December 2021

В декабре 2020 года сотрудники Института прикладной геофизики имени академика Е.К. Фёдорова в здании Полярного геофизического института г. Апатиты ввели в эксплуатацию новый GNSS приемник Septentrio PolaRx5S. Среди возможностей данного приемника можно выделить автоматический расчет ПЭС, фазовых и амплитудных индексов сцинтилляций. Так же камеры всего неба Полярного геофизического института работают в месте установки приемника в г. Апатиты и в обс. Ловозеро. Для облегчения целей исследования связи полярных сияний и индексов сцинтилляций реализован интерактивный WEB-интерфейс, позволяющий просматривать в каждый момент времени кадры оптических камер с нанесенными на них положениями GNSS спутников и соответствующими индексами сцинтилляций.
ОЦЕНКА ГРАНИЦ ЛОКАЛИЗАЦИИ ВОЗМУЩЕНИЙ ВЫСОКОШИРОТНОЙ ИОНОСФЕРЫ ПО ДАННЫМ GPS/ГЛОНАСС
Authors:   ИСЗФ СО РАН, г. Иркутск, Россия, Серебренникова С.А.
Published: December 2021

Оценка положения границы аврорального овала является актуальной и при этом достаточно сложной задачей. В последние годы Глобальные навигационные спутниковые системы (ГНСС) предоставляют обширный материал для изучения ионосферы Земли, а именно для наблюдения ионосферы и ионосферных неоднородностей в глобальном и региональном масштабе. Следовательно, карты вариации ПЭС указывают на постоянное присутствие ионосферных неоднородностей в области аврорального овала, а динамика области ионосферных неоднородностей соответствует динамике аврорального овала [1]. Таким образом, в работе был предложен новый подход для решения задачи прогноза положения аврорального овала, основанный на модели машинного обучения Random Forest, использующие данные GPS/ГЛОНАСС. В качестве опорных данных для машинного обучения использовались данные модели Ovation Prime. Разработанная модель Random Forest позволяет получать прогноз авроральной активности в виде карт потока энергии авроральных высыпаний. Оценка границ возмущений в авроральной зоне, в высокоширотной области была получена с помощью собственных, разработанных алгоритмов машинного зрения.
SOLAR-TERRESTRIAL EFFECTS REVEALED THROUGH LONG-TERM OBSERVATION ON BIORHYTHMS IN PLANTS AND EXPERIMENTAL RANDOM EVENTS OCCURRENCE
Authors:   Polar-Alpine Botanical Garden-Institute, RAS, Apatity, Russia, Kashulin P.A. , Kalacheva N.V. ,   Polar-Alpine Botanical Garden-Institute, RAS, Apatity, Russia
Published: December 2021

The comparative long-term observation of vascular Marantha leoconeura plant circadian biorhythms and some random processes in the mechanical and in electronic systems were carried out throughout winter and autumn months at the current year. The winter periods with relatively quiet Solar state were characterized by circaseptan and circasemiseptan multi-diurnal cycles in multi-diurnal time-course in plant leaves daily movement, and in deviation of obtained random numbers and coins toss counts from theoretically expected values. Solar active days at August and at September correlated with accumulated deviation of expected probability of random processes, and resulted in 5 days cycles prevalence in multi-diurnal time-course for both systems. The revealed discrepancy in seasonal dynamics observed is presumably caused by solar and cosmophysical driving agents the physical nature of which is badly expected to be unraveled.
Educação para as Relações Étnico-Raciais nas pesquisas em Educação Física e formação inicial: um estado do conhecimento
Authors: Silveira Keylla Amélia Dares , Alviano Júnior Wilson
Published: December 2021

A Educação Física, como componente curricular obrigatório da Educação Básica, fomentou, por muito tempo, a construção e a manutenção de normas racistas, por meio de preceitos eugênicos, marginalizando e negligenciando os conhecimentos oriundos das populações afro-brasileiras e indígenas. Assim sendo, afirma-se, neste artigo, a necessidade da inserção da Educação para as Relações Étnico-Raciais no contexto desse componente curricular, a começar pela formação inicial de professores. Destarte, este trabalho teve por objetivo compreender como a temática das relações étnico-raciais tem sido introduzida nas pesquisas sobre a Educação Física e a formação inicial de professores. Para tanto, construiu-se um estado do conhecimento a partir de levantamentos, de seleções e de análises de pesquisas disponíveis no Portal de Periódicos e no Catálogo de Teses e Dissertações da Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (Capes). Notou-se a existência de pesquisas profundamente relevantes na área. Contudo, ao analisar-se o tempo em que as legislações foram criadas, pôde-se inferir que ainda é um trabalho exíguo e que demanda investimentos.
Morphological analysis of micropyrite populations from the Toarcian of Bulgaria
Authors: Metodiev Lubomir , Stoylkova Tanya , Georgieva Milena , Koleva-Rekalova Elena
Published: December 2021

Morphological analysis of micropyrite populations of argillaceous inner shelf deposits from the Toarcian of Bulgaria was carried out in order to evaluate their stratigraphic distribution and their potential as recorders for redox conditions. Four types of micropyrites were documented: 1) euxinic framboids; 2) oxic/dysoxic framboids; 3) polyframboids; and 4) non-framboidal diagenetic pyrites. Resedimented sulphides were also observed. Micropyrite morphologies denoted upper- to lower dysoxic depositional settings within the sampled successions. Anoxic conditions seem also possible to exist but at very narrow intervals.
New data on the age of the Emine Formation (East Balkan, Bulgaria)
Authors: Stoykova Kristalina , Ivanov Marin
Published: December 2021

The study represents new data about chronostratigraphic range of the Emine flysch Formation in its type section at the Black Sea coast near the “Irakli” touristic resort. In the highest stratigraphic levels, calcareous nannofossils of NP 10 Rhomboaster bramlettei zone have been documented, supporting early Eocene age for the formation. These new finds will shed light on the timing of cessation of the turbiditic sedimentation in East Balkan, as well as on the specific expression of the global event – the Paleocene–Eocene Thermal Maximum (PETM) in deep-water environment.
Preliminary results of XRF and XRD analyzes for lithofacial characteristics of the Doirentsi Formation reservoir carbonates in the south-central part of the Moesian Platform
Authors: Marinovska Eva , Botoucharov Nikola
Published: December 2021

The main objective of the study is to determine the lithofacial characteristics of the Doirentsi Formation reservoir carbonates in the range of the south-central part of the Moesian platform by XRD and XRF analyzes. The obtained results demonstrate the chemical and phase composition and supplement the field description of the Middle Triassic limestones and dolomites. This will allow the creation of realistic 3-D reservoir models for gas condensate fields Pisarovo and Devetaki in the future.
Deep-sea polymetallic nodules as opportunity for future supply with critical raw materials
Authors: Stoyanova Valcana , Hikov Atanas , Stefanova Elitsa , Milakovska Zlatka , Abramowski Tomasz , Peytcheva Irena , Chavdarova Silvia , Stavrev Milen
Published: December 2021

The renewed importance of polymetallic nodules in the context of forecasted increasing demands for metals are discussed. Based on the Interoceanmetal Joint Organization’s (IOM) site-specific data obtained during the exploration activity in the Clarion-Clipperton Fracture Zone, a total of 272.5 Mt of nodules were estimated as economically reasonable for future mining for Ni, Cu, Co, and Mn. Additionally, data for REE and other critical elements in nodules as potential by-products are presented.
The May 2, 2020, Crete tsunami: comparison between registered and modelled mareograms
Authors: Dimova Lyuba , Raykova Reneta
Published: December 2021

The Eastern Mediterranean and Aegean Sea are susceptible to strong earthquakes and tsunami waves. On May 2, 2020 a strong shock with Mw6.6 induced tsunami that was registered in the mareographic network. The tsunami did not cause inundations, but it was the reason to enforce a tsunami alert from the Tsunami Service Providers. Our study is focused on the tsunami numerical simulations of this event and the results are compared to the registered signals in the stations NOA-03 and NOA-04 in Kasos and Ierapetra.
Analysis of the possibility for seismic early warning in the Balkan Peninsula
Authors: Dragomirov Dragomir , Dimova Lyuba , Tsekov Milen , Velizarova Margret , Romanelli Fabio , Raykovа Reneta
Published: December 2021

This study analyses the possibility for seismic early warning (EW) in the Balkan Peninsula. A number of characteristics of seismic record were evaluated for EW utility. Some tests checked the possibility to locate events reliably by Golitsyn’s method, using one seismic station (SS). The distance and relevant travel time from some crustal faults to the nearest SS and big towns were appraised. EW procedures for most of the seismic zones in the Balkan Peninsula are not reliable, excepting the Vrancea zone, because of the small density of the SS, crustal depth of the earthquakes and fault crowdedness of the region.
Characteristic of debris flow in the Kresna gorge on September 26, 2020
Authors: Kenderova Rossitza , Rachev Georgi
Published: December 2021

On September 26, 2021 a sudden debris flow in the northern part of the Kresna Gorge suspended traffic on the international road E-79. The following paper characterizes the synoptic situation that leads to a debris flow event and related deposits. The type of flow is determined bases on data obtained from grain size and morphoscopic analyses. A general assessment of the strengthening measures is made.
Clinical management of a rare Peters’ anomaly-induced secondary childhood glaucoma: A case report
Authors: Imelda Eva , Gunawan Fany
Published: December 2021

Childhood glaucoma is a rare disorder that occurs from birth until teenage years caused by an abnormality of aqueous humor pathways. About 50–70% of Peters' anomaly is accompanied by secondary childhood glaucoma. The presence of glaucoma will affect the prognosis. We reported the evaluation and treatment of secondary childhood glaucoma due to Peters’ anomaly. A 5 months-old boy was presented with the complaint of a enlarged left eye since 3 months old. The complaint was accompanied by a watering eye and frequently closed upon light exposure. The left eye looked opaquer than contralateral. Examination under anesthesia showed that the intraocular pressure (IOP) was 35 mmHg in the left eye and the corneal diameter was 14 mm. Other findings were keratopathy, diffuse corneal edema, buphthalmos, shallow anterior chamber, anterior synechiae, and linear slit shaped pupils in the nasal region. Patient was treated with ophthalmic timolol maleate which was later followed by trabeculectomy. After 1 week post-surgery, IOP assessment by palpation suggested the right eye within normal range while the IOP of left eye was higger than normal. Blepharospasm, epiphora, photophobia, bleb on superior, subconjunctiva bleeding, buphthalmos, keratopathy, minimal corneal edema, anterior chamber with shallow image, and posterior synechia were found in left eye anterior segment. In conclusion, trabeculotomy and trabeculectomy are recommended if there is no reduction of IOP observed after receiving timolol maleate therapy. The choice of surgical management is dependent on the feasibility of the protocol.
Acceptance of COVID-19 vaccination at different hypothetical efficacy and safety levels in ten countries in Asia, Africa, and South America
Authors: Rosiello Dott F. , Anwar Samsul , Yufika Amanda , Adam Rashed Y. , Ismaeil Mohajer IH. , Ismail Asma Y. , Dahman Nesrine BH. , Hafsi Montacer , Ferjani Manel , Sami Farah S. , Monib Fatma A , R Subramaniam , Anandu Sunil , Haque Md Ariful , Ferreto Lirane ED. , Aburto José TO. , Rojas Jorge ET. , Enitan Seyi S. , Yomi Akele R. , Ezigbo Eyiuche D. , Babadi Elham , Kakemam Edris , Malik Najma I. , Ullah Irfan , Sallam Malik
Published: December 2021

Vaccine hesitancy, defined as the reluctance or rejection in receiving a vaccine despite its availability, represents a major challenge to global health efforts aiming to control the ongoing COVID-19 pandemic. Understanding the possible factors correlated with COVID-19 vaccine hesitancy using a refined well-informed approach can be helpful to address the phenomenon. The current study aimed to evaluate COVID-19 vaccine acceptance rates using four hypothetical scenarios of varying levels of vaccine efficacy and safety profiles in ten Asian, African and South American countries. These scenarios included: 95% efficacy and 20% side effects (Vaccine A), 75% efficacy and 5% side effects (Vaccine B); 75% efficacy and 20% side effects (Vaccine C) and 50% efficacy and 5% side effects (Vaccine D). This study used a self-administered online survey that was distributed during February–May 2021. The total number of study respondents was 1337 with countries of residence as follows: India (21.1%), Pakistan (12.9%), Sudan (11.2%), Nigeria (9.3%), Iran (8.2%), Bangladesh and Brazil (7.9%), Chile (7.7%), Tunisia (7.6%), and Egypt (6.2%). The overall acceptance rates for COVID-19 vaccination were variable based on varying degrees of safety and efficacy as follows: 55.6% for Vaccine C, 58.3% for Vaccine D, 74.0% for Vaccine A and 80.1% for Vaccine B. The highest levels of COVID-19 vaccine acceptance were observed in Brazil followed by Chile across the four different safety and efficacy scenarios. The lowest COVID-19 vaccine acceptance rates were reported in Egypt and Tunisia for the low safety scenarios (20% side effects), and the low efficacy scenario (50% efficacy). The study revealed the potential effect of vaccine safety and efficacy on the intention to get COVID-19 vaccination. At the same efficacy level, higher possibility of side effects caused a large drop in COVID-19 vaccine acceptance rate. This indicates the importance of accurate communication regarding vaccine safety and efficacy on attitude towards the vaccine and intentions to get vaccinated. Regional differences in COVID-19 vaccine acceptance were observed with the Middle East/North African countries showing the lowest rates and the South American countries displaying the highest vaccine acceptance rates.
Correlation between depression level and headache severity: A study among medical students during the COVID-19 pandemic
Authors: Bintari Dika C. , Sudibyo Devi A. , Karimah Azimatul
Published: December 2021

Headache is the most prevailing disorder and the third leading cause of disability worldwide. The prevalence of primary headaches has been reported to increase by 2-4 times in patients with psychiatric comorbidities, including depression. This study sought to assess the correlation between depression level and headache severity among medical students. To the best of our knowledge, this is the first study to evaluate the correlation between depression level and headache severity in Indonesia. A cross-sectional study was conducted among students of Airlangga University in 2021. To evaluate the level of depression and the severity of headache, Depression Anxiety Stress Scales (DASS-42) and Headache Impact Test 6 (HIT-6) were used, respectively. A set of validated questionnaires were used to assess students’ demographic characteristics. A total of 82 medical students were included in this study and most of them were female (86.6%). The third-semester students represented the highest proportion (45.2%) of subjects. The mean age and body mass index (BMI) were 19.88 ± 1.03 and 22.55±4.44, respectively. The average DASS-42 score was 10.98±11.47 which indicated a mild depression level. The average HIT-6 score was 45.74±6.130 which revealed a mild impact. The data of Spearman correlation suggested that headache severity was significantly correlated with depression level (r=0.396, p<0.001). This study provides insights on the importance of stress management and depression prevention to decrease the risk of headache, and vice versa.