bluuebunny/crossref_metadata_2025 huggingface dataset:
Pemanfaatan Teknologi Digital Wallet Sebagai Solusi Alternatif Pembayaran Modern: Literature Review
Authors: Fadhilah Jihan , Layyinna Cut Aja Anis , Khatami Rijal , Fitroh Fitroh
Published: August 2021

Abstract: Financial technology innovation in the form of digital wallets is very interesting to the public. The efficiency offered from this payment system makes people start to switch from conventional payments to digital payments. In addition, many other factors influence multi-generational people using digital wallets as an alternative to their daily payments. The use of digital wallets is currently widely applied to online transportation transactions, purchases in e-commerce, to food and beverage delivery services. The method used in this study is a method of literature study with the goals to find out the development of digital wallet usage in the community from various journals sourced from Scopus and several websites that have been analyzed and processed by researchers into a literature review study. From the results obtained, it can be concluded that from year to year there is an increase in the number of digital wallet users, especially in Indonesia. Moreover after the Covid-19 pandemic, the number of digital wallet users is increasing because people have to avoid physical contact so that more transactions with digitally.Abstrak: Inovasi teknologi keuangan berupa digital wallet sangat manarik perhatian masyarakat. Efisiensi yang ditawarkan dari sistem pembayaran ini membuat masyarakat mulai beralih dari pembayaran konvensional ke pembayaran digital. Selain itu banyak faktor lain yang mempengaruhi para multi generasi menggunakan digital wallet sebagai alternatif pembayaran sehari-hari mereka. Penggunaan digital wallet saat ini banyak diterapkan untuk transaksi transportasi online, pembelian di e-commerce, hingga jasa pesan antar makanan dan minuman. Metode yang digunakan pada penelitian ini yaitu metode studi literatur dengan tujuan untuk mengetahui perkembangan penggunaan digital wallet di masyarakat dari berbagai jurnal yang bersumber dari Scopus dan beberapa website yang telah dianalisis dan diolah peneliti menjadi sebuah kajian literature review. Dari hasil yang didapatkan dapat disimpulkan bahwa dari tahun ke tahun terjadi peningkatan jumlah pengguna digital wallet, khususnya di Indonesia. Apalagi setelah pandemi Covid-19, jumlah pengguna digital wallet semakin meningkat karena masyarakat harus menghindari kontak fisik sehingga lebih banyak melakukan transaksi secara digital.
Métodos cuantitativos en paleoecología de comunidades
Authors: Cuen Romero Francisco Javier , Noriega-Ruiz Héctor Arturo , Chacón-Baca Elizabeth , Monreal Rogelio , Castillo-Gámez Reyna Amanda
Published: August 2021

En este trabajo se describen los métodos cuantitativos más comunes empleados para la caracterización de paleocomunidades en un sitio determinado de manera general, estableciendo una guía breve y simple que incluye los principales índices utilizados en paleoecología. La secuencia combina atributos que incluye los siguientes pasos: 1) colectar, identificar y cuantificar el material paleontológico, 2) estimar patrones espaciales, 3) determinar la diversidad de especies mediante índices ecológicos, métodos de rarefacción, así como coeficientes de similitud y diferenciación composicional. Esto conlleva finalmente a poder reconocer atributos como el número y la abundancia relativa de especies, la naturaleza de sus interacciones y la estructura física de las comunidades. El conocimiento de los cambios ecológicos que han ocurrido en el pasado geológico contribuye no sólo a mejorar el entendimiento y manejo de los ecosistemas actuales, sino a fundamentar predicciones documentadas sobre las posibilidades futuras de cambio en algún o varios atributos o parámetros.
PERILAKU PENCARIAN INFORMASI MAHASISWA JURUSAN ILMU PERPUSTAKAAN UNIVERSITAS ISLAM NEGERI SYARIF HIDAYATULLAH JAKARTA DALAM MASA PANDEMIK COVID
Authors: Evi Zakiyah
Published: August 2021

This research was conducted to explain what changed from seeking information from students of the Faculty of Adab and Humanities, Syarif Hidayatullah State Islamic University Jakarta during the Covid 19 Pandemic. The method used in this study was descriptive qualitative.  This study used a stratified sampling technique, amounting to 83 informants from a population of 500 students of the Department of Library Science, Syarif Hidayatullah State Islamic University Jakarta.  Data collection techniques in this research are literature study and questionnaires.  The results of this study were slightly constrained by the situation, from the supposed 83 people only 31 people filled out the questionnaire while only 31 people filled out the questionnaire.  In meeting these information needs, students conduct a gradual search for information consisting of: starting, determining topics before seeking information: chaining, recording a list of information needed;  browsing, looking for information on information sources;  differentiating, sorting out the information gathered;  monitoring, following information developments;  extracting, looking for information on a specific source;  verifying, checking data;  and ending, the end of the search for information.
Students' Approaches to Learning the New B. Ed. Programme in Ghana: Evidence from Colleges of Education within Mampong Municipality
Authors: Moses Azerimi Azewara  , Emma Poku Agyeman  , Joseph Dawson-Ahmoah  , Aaron Adusei  , Eric Twum-Ampofo
Published: August 2021

This paper explores the use of surface and deep learning strategies of students in two Colleges of Education within Mampong Municipality: St. Monica's College (Single-Sex College-Female) and Mampong Technical College (Single-Sex College-Male) who were enrolled to read a Four-Year Bachelor of Education programme. Drawing on Biggs et al.'s Revised Study Questionnaire (2001), the study investigates whether student-teachers adopt a predominantly surface or deep learning approach to their studies for the New B. Ed. programme introduced into the Colleges of Education. From February to April 2021, we employed a quantitative cross-sectional design. A self-administered questionnaire was used to collect data from 332 participants (level 200 and 300) who were enrolled to study the four-year B. Ed. programme which was introduced in 2018. One-way analysis of variance (ANOVA) and t-tests were used to examine participants' age, sex and level of study in correlation with their learning approaches (Deep or Surface). A significant difference in the Deep learning approach was found between males and females in both schools (p = 0.47). However, there was no significant difference between age, level and learning approach. Their responses were analysed using descriptive statistics. Findings suggest that student-teachers appear to adopt deep learning strategies in their studies at Colleges of Education and that this approach to learning was used regardless of the discipline in which they were enrolled.
Analysis of HRV and Body Temperature Variation for Manual Acupuncture and PEMF (Pulsed Electro-Magnetic Field) Acupuncture Stimulation
Authors: Lee Ja-Woo , Kim Jun-Young , Hyun Jae-Ho , Lee Yong-Heum
Published: August 2021

Objective: The purpose of this study is to evaluate the clinical therapeutic effectiveness and applicability of the PEMF (pulsed electro-magnetic field) acupuncture. To verify this, we observe autonomic nervous system (ANS; such as the HRV and body temperature) variation for
the manual acupuncture and the PEMF acupuncture.
 Method: 56 voluntary participants were divided into three groups; non-stimulation group, manual acupuncture group (MAG), and PEMF acupuncture group (PAG). BL15 (Bladder Meridian) was selected as the stimulation area, the PEMF
parameters were chosen at 2 Hz and 46mT. The HRV and body temperature were measured before and after each stimulation. The HRV at low frequency (LF; 0.04 - 0.15 Hz) and high frequency (HF; 0.15 - 0.4 Hz) were analyzed to acquire LF/HF ratio.
 Results: The LF and the LF/HF
ratio were found to be lower in the MAG (p = 0.026) and the PAG (p = 0.011), but higher in the non-stimulation group (p = 0.778). The HF was found to be higher in the MAG (p = 0.011) and the PAG (p = 0.013). In BL15, the non-stimulation group had very
low body temperature variation. The temperature difference in the MAG before andafter the procedure was 0.37°C; there were no significant differences (p = 0.114). The temperature difference in the PAG was larger than that for the MAG, at 0.83°C; it was a significant difference
(p = 0.001). Conclusion: We found that the manual acupuncture and the PEMF acupuncture at BL15 activated the parasympathetic nervous system. Therefore, we confirm that the PEMF acupuncture can be expected to have a similar effect as acupuncture and can be applied as a means
of clinical acupuncture treatment.
Electroacupuncture Attenuates Depressive Disorder and Gastrointestinal Dysfunction in Myocardial Hypertrophy via Upregulation of 5-HT on Rats
Authors: Li Jia , Lu Wei , Li Yachen , Wang Chun , Liu Jing , Wang Hua
Published: August 2021

Although acupuncture therapy, as a preventive and therapeutic technique, is low or no risk for some cardiovascular diseases, its role in safeguarding myocardial hypertrophy (MH) has not been clarified. Therefore, this study focused on examining whether electroacupuncture (EA) can alleviate
MH by up-regulating tryptophan 5-serotonin (5-HT) metabolism, depressive disorder, and gastrointestinal dysfunction in MH rat models. We evaluated the effect of EA on myocardial ischemia in the ISO-induced myocardial hypertrophy (MH) rat model. Forty SpragueDawley (SD) rats aged 3 months were
randomly divided into normal group, model group, EA group, and sham EA group with 10 rats in each group. Heart weight/body weight ratio (HW/BW) and left ventricular weight/body weight ratio (LVW/BW) were used to evaluate the regression of MH. Cardiac pathology was evaluated by ultrastructural
observation and hematoxylin and eosin (H&E) staining. Sucrose preference test (SPT), forced swimming test (FSW), and open-air test (OFT) were used to study depressive Although acupuncture therapy, as a preventive and therapeutic technique, is low or no risk for some cardiovascular diseases,
its role in safeguarding myocardial hypertrophy (MH) has not been clarified. Therefore, this study focused on examining whether electroacupuncture (EA) can alleviate MH by up-regulating tryptophan 5-serotonin (5-HT) metabolism, depressive disorder, and gastrointestinal dysfunction in MH rat
models. We evaluated the effect of EA on myocardial ischemia in the ISO-induced myocardial hypertrophy (MH) rat model. Forty Sprague – Dawley (SD) rats aged 3 months were randomly divided into normal group, model group, EA group, and sham EA group with 10 rats in each group. Heart weight/body
weight ratio (HW/BW) and left ventricular weight/body weight ratio (LVW/BW) were used to evaluate the regression of MH. Cardiac pathology was evaluated by ultrastructural observation and hematoxylin and eosin (H&E) staining. Sucrose preference test (SPT), forced swimming test (FSW), and
open-air test (OFT) were used to study depressive behavior. The gastric retention and intestinal transport were evaluated by carbon powder labeling and the expression of 5-HT in the cerebral cortex and ileum was detected by immunohistochemistry. Depression-like symptoms in rats can be relieved
by EA therapy. For instance, the consumption rate of sucrose solution was higher, the total distance and central distance in the open field test were increased, and EA treatment could reduce the immobility time of these rats. Swimming, struggling and immobility latencies were also increased
in the forced swimming test. After EA treatment, the expression of 5-HT in the cerebral cortex and ileum increased. Finally, we found that EA ameliorated ischemia, depression, and gastrointestinal dysfunction in ISO-induced MH rats, which may be related to 5-HT metabolism.
Clinical Characteristics and Laboratory Testing of Patients With COVID19: A Retrospective Analysis
Authors: Liu Jun , Li Shu-Rui , Zhou Hai-Ping , Hu Cheng-Dong , Yue Zeng-Ping , Lv Guang-Bo
Published: August 2021

Objective:To explore the early warning signs of deterioration of patients Methods: The data of thirty-six patients who were admitted to Handan Infectious Hospital was collected. The clinical features and laboratory testing were retrospectively. The initial laboratory testing
included blood chemistries, dimer, coagulation function, etc. The patients were divided into mild/common severe/critical group. Results: The lymphocyte count, monocyte count, hemoglobin, albumin levels in severe/critical group were lower compared with those in group, while the fibrinogen
was higher. The lymphocyte count and monocyte positively correlated with hemoglobin, pre-albumin respectively. Conclusion: patients with lower initial prealbumin and hemoglobin level were more likely severe conditions. Decreased prealbumin and hemoglobin, combined with and monocyte
count, could be the early warning signs of deterioration of COVID-19.
KORELASI ANTARA GAYA BELAJAR SISWA, KONDISI EKONOMI KELUARGA DAN KEDISIPLINAN SISWA DENGAN PRESTASI BELAJAR FISIKA
Authors: Astrini Dhien
Published: August 2021

Penelitian ini bertujuan untuk mencari korelasi antara gaya belajar siswa, kondisi ekonomi keluarga, kedisiplinan siswa dengan prestasi belajar fisika kelas XI SMA Se-Kecamatan Ngampilan. Jenis penelitian ini adalah deskriptif korelatif. Populasi dalam penelitian ini adalah siswa kelas XI sebanyak 114 siswa. Teknik pengambilan data menggunakan Cluster Random Sampling dan penentuan sampel menggunakan tabel Krejcie Morgan sebanyak 86 responden. Teknik pengumpulan data menggunakan teknik tes dan teknik angket. Validitas instrumen dengan menggunakan korelasi product moment, dan reliabilitas instrumen menggunakan rumus KR-20 dan rumus alpha cronbach. Hasil penelitian menunjukan bahwa ada korelasi yang positif dan signifikan antara gaya belajar siswa, kondisi ekonomi keluarga dan kedisiplinan siswa dengan prestasi belajar fisika. Koefisien determinasi R2 = 0,487. Sumbangan efektif dari ketiga prediktor  sebesar 48,707% dengan gaya belajar sebesar 10,488%, kondisi ekonomi keluarga sebesar 5,750% dan kedisiplinan siswa sebesar 32,469%.
ANALISIS KEMAMPUAN MENYUSUN RPP BERBASIS SAINTIFIK MAHASISWA CALON GURU FISIKA
Authors: Lantik Vinsensius , Kamaruddin Fakhruddin , Yusuf Yusniati H. Muh , Astiti Kadek Ayu , Hali Antonius Suban , Supu Amirudin
Published: August 2021

Tujuan dari penelitian ini adalah untuk menganlisis  kemampuan perencanaan bagi calon guru  fisika  dalam  menyusun  Rencana Pelaksanaan Pembelajaran  berbasis  saintifik.  Metode  penelitian  yang  digunakan adalah metode deskriptif. Subjek penelitian ini berjumlah 50 orang mahasiswa pendidikan fisika semester VI tahun akademik 2019/2020 pada mata kuliah Micro Teaching. Instrumen penelitian  menggunakan  penilaian  skala  disertai  rubrik  dari  hasil  tampilan  Rencana Pelaksanaan Pembelajaran.  Teknik analisis data menggunakan deskriptif kualitatif dan  kuantitatif. Berdasarkan hasil penelitian diperoleh nilai rata-rata penyusunan Rencana Pelaksanaan Pembelajaran sebesar 68,53 dengan kategori baik. Capaian ini masih perlu ditingkatkan.
META ANALISIS MEDIA PEMBELAJARAN IPA SMP/MTS BERBASIS VIRTUAL REALITY
Authors: Rahmawati Siti , Paradia Putri Anggun , Noor Faiq Makhdum
Published: August 2021

Pembelajaran menggunakan media Virtual Reality sangat sederhana dan dapat diakses secara mudah melalui banyak platform contohnya di Smartphone. Media pembelajaran Virtual Reality diimplementasikan terhadap siswa SMP. Hal yang menarik dari media Virtual Reality yaitu bisa diakses dengan mudah dan dimana saja contohnya pada website YouTube, sehingga siswa dapat belajar dan memiliki peluang yang sangat besar, khususnya pengembangan pada potensi keilmuwan dalam dunia pendidikan.Penelitian ini menjawab permasalahan bagaimana kemampuan analisis media pembelajaran IPA dengan menggunakan media Virtual Reality di jenjang SMP. Metode penelitian yang digunakan pada penelitian ini adalah meta analisis . Secara keseluruhan penelitian ini membuktikan adanya perbedaan kemampuan analisis pada aspek membedakan, mengorganisasikan, dan mengatribusikan antara siswa yang menggunakan media Virtual Reality dengan yang menggunakan media presentasi dalam mata pelajaran IPA di jenjang SMP/MTS. Dalam situasi pandemi sistem pembelajaran daring adalah solusi dari permasalahan COVID-19. Oleh sebab itu penting adanya media pembelajaran untuk siswa, salah satu media yang dapat dilakukan pendidik khususnya pada jenjang SMP/MTS adalah media pembelajaran virtual reality menjadi solusi agar pendidikan di Indonesia tidak mengalami penurunan karena adanya pamdemi COVID-19.
META ANALISIS PENGEMBANGAN E-MODUL BERBANTUAN SIGIL PADA PEMBELAJARAN FISIKA
Authors: Nisa Uswatun , Yuliani Hadma , Syar Nur Inayah , Nastiti Luvia Ranggi
Published: August 2021

Proses pemahaman konsep fisika seringkali mengalami kendala karena minimnya sumber belajar yang dapat memotivasi siswa dalam belajar serta dalam memperkuat pemahaman. Salah satunya dengan memberikan suatu bahan ajar berupa e-modul berbantuan SIGIL pada pembelajaran fisika. Tujuan dari meta-analisis ini adalah untuk mengestimasi Pengembangan E-Modul Berbantuan SIGIL Pada Pembelajaran Fisika. Metode penelitian meta analisis ini terdiri dari langkah-langkah yaitu perumusan masalah, pengumpulan data (studi), pengkodean data, dan analisis data dan interpretasi. Dari hasil pencarian jurnal diperoleh 35 jurnal pengembangan e-modul berbantuan SIGIL pada pemebelajaran fisika. Terdapat 5 artikel yang memenuhi kriteria untuk dimasukkan:  Ketika proses studi menggunakan e-modul berbantuan SIGIL  pada pembelajaran fisika dalam SMA/MA/SMK. Ulasan ini mengungkapkan bahwa ada efek positif yang kuat dari Pengembangan e-modul berbantuan SIGIL pada pembelajaran fisika. Temuan penelitian mengungkapkan bahwa hasil meta analisis diperoleh effect size dari efektivitas pengembangan e-modul berbantuan SIGIL Pada Pembelajaran Fisika sebesar 2,2 yang tergolong tinggi yaitu sebesar 99%.
ANALISIS KOEFISIEN GESEK KINETIS BENDA DI BIDANG MIRING MENGGUNAKAN VIDEO TRACKER
Authors: Andriani Florentina , Busri Selvistika Suryanti , Rande Wilhelmina , Joni Yohana Melci , Astro Richardo Barry
Published: August 2021

Penelitian ini bertujuan untuk menentukan nilai koefisien gesek kinetis pada dua buah balok kayu, dengan panjang m1= 8 cm, lebar = 4 cm, dan tingginya = 5 cm dan m2 : panjang = 5 cm, lebar = 4 cm dan tingginya = 3 cm terhadap landasan kayu. Metode yang digunakan dalam penelitian ini adalah metode eksperimen. Eksperimen ini dilaksanakan pada April 2020 bertempat di rumah peneliti, jalan Sam Ratulangi Ende. Permukaan dan panjang bidang miring dibuat konstan, dengan sudut kemiringan bidang yang dapat diatur. Variabel terikat dalam penelitian ini adalah koefisien gesek kinetis dan variabel bebasnya adalah video tracker Eksperimen menggunakan variasi sudut kemiringan 26º, 28º, dan 30º. Penentuan nilai koefisien gesek kinetis dilakukan dengan cara mengamati luncuran benda dari puncak bidang miring yang didokumentasikan dalam bentuk video. Selanjutnya video dianalisis menggunakan aplikasi Tracker. Tracker merupakan aplikasi yang mampu melakukan pelacakkan pada gerak suatu objek sehingga dapat diperoleh informasi yang dibutuhkan dalam analisis pada suatu peristiwa gerak. Data hasil analysis video ditampilkan dalam bentuk grafik kecepatan terhadap waktu. Metode tracking terbukti memberikan hasil pengukuran yang konsisten sehingga dapat dintegrasikan dalam penentuan koefisien gesek kinetisdan eksperimen kinematika lainnya. Koefisien gesek kinetis antara balok kayu terhadaplandasan papan kayu pada eksperimen ini diperoleh nilai pada balok m1 sebesar 0,3341 dan balok m2 sebesar 0,3561.
The Involvement of UN in Palestine and the Possibility of a Global Protection Force
Authors: Kainat Kamal
Published: August 2021

The United Nations (UN) peacekeeping missions are mandated to help nations torn by conflict and create conditions for sustainable peace. These peacekeeping operations hold legitimacy under international law and the ability to deploy troops to advance multidimensional domains. Peacekeeping operations are called upon to maintain peace and security, promote human rights, assist in restoring the rule of law, and help conflict-prone areas create conditions for sustainable peace ("What is Peacekeeping", n.d.). These missions are formed and mandated according to individual cases. The evolution of the global security environment and developing situations in conflictridden areas requires these missions to transform from 'traditional' to 'robust' to 'hybrid', accordingly (e.g., Ishaque, 2021). So why is it that no such model can be seen in restoring peace and protection of Palestinian civilians in one of the most protracted and deadly conflicts in history?
The Challenges of diagnosing and managing a ruptured abdominal aortic aneurysm with primary aortoduodenal fistula.
Authors: Howgego Greg , Howard Dominic
Published: August 2021

Primary aortoduodenal fistula is a rare and highly morbid complication of an abdominal aortic aneurism (AAA). Patient X presented with a ruptured AAA complicated by a primary aortoduodenal fistula in 2016 which was treated surgically but has since suffered from repeated admissions due to sepsis as a result of ongoing graft infections. 

The diagnosis of aortoduodenal fistula is complicated with no imaging technique providing a definitive diagnosis meaning that maintaining clinical suspicion is important. There is a paucity of evidence regarding how to surgically approach the repair of an aortoduodenal fistula, although there is a shift towards multiple-step procedures in elective repair.
An Ominous Sign: Mucinous Ovarian Carcinoma with Sister Mary Joseph Nodule
Authors: Hunter Alicia , Addley Susan
Published: August 2021

Despite two centuries of progress in its surgical and oncological management, ovarian cancer remains the most lethal of the gynaecological cancers, claiming the lives of nearly 185,000 women globally each year. Historically considered a single disease, there is growing recognition that ovarian cancer is in fact a spectrum of malignancies with distinct cellular origins, molecular driver pathways and clinicopathological features. Mucinous ovarian carcinoma (mOC) is a rare histological subtype that presents a particular challenge in accurate diagnosis and management. Frequently confused with metastatic deposits from extra-ovarian mucinous tumours, the true incidence of primary mOC is estimated to be between 3-5%. Typically affecting younger women, prognosis for late-stage disease is abysmal with a median survival of <15 months. This case report describes a 38-year-old patient who presented with rapidly worsening abdominal distension. Subsequent debulking surgery removed a mass weighing 2.4kg, confirmed by histopathology as a high grade mucinous ovarian carcinoma with a mural nodule of anaplastic carcinoma. Evidence behind the current guidelines for management will be discussed, addressing our recent understanding of mOC as a separate disease from other histotypes and the consequent challenges in interpreting data from large multicentre trials in which patients with mOC are poorly represented. Moreover, using the Sister Mary Joseph nodule (SMJN) as an example, this case also highlights the importance of the physical examination and the value of subtle (and sometimes missed) clinical signs that provide important clues about the extent of a patient’s underlying disease and prognosis.
The chronic ear: A case report of bilateral cholesteatoma in a 10-year-old boy
Authors: Naszai Mate , Ramsden James
Published: August 2021

Cholesteatoma is a rare condition affecting 9-12.6 adults and 3-15 children per 100,000 per annum [1–4], with a more aggressive presentation in the paediatric population [5].

Intermittent otorrhea (ear discharge) is the presenting complaint in over half of cholesteatoma patients [6, 7]. The peak incidence of cholesteatoma is 5-15 years of age [8] which overlaps significantly with a period of high incidence in otitis media [9] and externa [10], diseases that often present the same way as cholesteatoma. This results in diagnosis that may take several years.

Left untreated, cholesteatoma can cause significant lasting damage in the form of deafness, vertigo, facial paralysis, meningitis, and brain abscesses which may prove fatal [11].

Current treatment options are limited to surgical excision with the aim to establish a safe and manageable ear, while maintaining hearing is secondary. Improving surgical instrumentation has allowed a better success rate, however, revision surgeries remain a mainstay of practice. In practical terms, this means that those affected by bilateral disease often undergo surgery 4 or more times [12]. This represents a significant burden for patients.

The decision about the exact surgical approach (canal wall up vs canal wall down) is a careful balancing act of safety versus functionality, and the pros and cons must be weighed in light of available evidence and the skill of the surgeon [13].
The Challenges of Monitoring PTLD with focus on Renal Transplantation: A Case Report
Authors: Shammoon Yusra , Dengu Fungai
Published: August 2021

N/A - Surgical Case Study
Geopathogenic zones, mobile phones and their influence on human organism, animals and trees
Authors: Duranková Silvia , Kalavsky Richard , Bernasovská Jarmila
Published: August 2021

Geopathogenic zones are defined as inhomogeneities in the Earth's crust that emit electromagnetic radiation. These zones can also affect people without awareness and perception. Currently, the animal and plant kingdom as well as the human population live in a time with many electronic devices that can also affect us to some extent. Therefore, geopathogenic zones (GPZ) can also be one of the theoretical triggers of various diseases. The study aimed to determine the theoretical occurrence of geopathogenic zones and their effect on plants, animals, and the human body. Theoretically approach the occurrence of geopathogenic zones. In this study, data were obtained by using an anonymous questionnaire. A total of 202 respondents participated in the study, of which 56 were men and 146 women. The questionnaire consisted of 34 questions divided into 5 sections. Each of our respondents uses a mobile phone, which can to some extent affect our sleep, but also our health. Geopathogenic zones also occur near the dwellings where our respondents live. We assume that the animals of our respondents avoid geopathogenic zones as observed and predicted by studies. Geological research on the land can show us the presence of groundwater, changes in soil composition, and the possible occurrence of geopathogenic zones. All these arguments should be found even better to examine the issue since geopathogenic zones in the world are very under-represented. GPZ is one of the possible factors that can cause feelings of discomfort, various anomalies, or even health problems.
A Simulation of AODV and GPSR Routing Protocols in VANET Based on Multimetrices
Authors: Aljabry Israa , Al-Suhail Ghaida
Published: August 2021

Vehicular Ad hoc Networks (VANETs), a subsection of Mobile Ad hoc Networks (MANETs), have strong future application prospects. Because topology structures are rapidly changing, determining a route that can guarantee a good Quality of Service (QoS) is a critical issue in VANETs. Routing is a critical component that must be addressed in order to utilize effective communication among vehicles. The purpose obtained from this study is to compare the AODV and GPSR performance in terms of Packet Delivery Ratio, Packet Drop Ratio, Throughput, and End-to-End Delay by applying three scenarios, the first scenario focuses on studying these protocols in terms of QoS while changing the number of vehicles at a constant speed of 40Km/h, and for the second scenario changing the speed value while keeping a constant number of vehicles which is 100, the third involves changing the communication range at a constant speed and vehicle number. This study represents a foundation for researchers to help elaborate on the strength and weaknesses of these two protocols. OMNeT++ in conjunction with SUMO is used for simulation.
Technical Assessment of Wind Energy Potentiality in Malaysia Using Weibull Distribution Function
Authors: Abdul Rashid Shoib  , Djamal Hissein Didane  , Akmal Nizam Mohammed  , Kamil Abdullah  , Mas Fawzi Mohd Ali
Published: August 2021

In this paper, an assessment of the wind characteristics and wind power potentials in three different stations (Chuping, Kuantan and Melaka) in Malaysia has been analyzed at 80 m height. The assessment technique was based on the two-parameter Weibull distribution function over three recent consecutive years (2018-2020) while aiming to establish the potentiality of the wind as a source of power generation in these sites. The results demonstrate that the monthly highest mean wind speeds were 4.42 m/s, 2.96 m/s and 2.17 m/s at Melaka, Kuantan and Chuping, respectively. The highest most probable wind speed was 4.70 m/s and the wind speed carrying maximum energy was 1.74 m/ both speeds occurred at Maleka in 2019. The yearly highest Weibull shape parameter was 1.69 and the scale parameter was 2.96 m/s. Among the three stations, Melaka has shown the highest wind power potentials with an average value of 26.10 W/m2 followed by Kuantan with 12.71 W/m2 and Chuping with 6.80 W/m2 wind power density. The corresponding wind energy densities were 595.58 kWh/m2/year, 111.37 kWh/m2/year and 228.65 kWh/m2/year for Chuping, Kuantan and Melaka station, respectively. The prevailing wind directions are northeast at both Kuantan and Melaka station, west and southwest direction at Chuping station. It is therefore concluded that the potentiality of the wind power of the sites covered in the present study is only feasible for small-scale power generations.
Simulation of Water Wave Interaction with Large Submerged Square Obstacles
Authors: Mona Gomaa  , Tamer Kasem
Published: August 2021

Water waves propagation over submerged obstacles is considered. The problem serves as an efficient model for modeling breakwaters. A numerical wave tank is developed to simulate the induced flow field. The model is based on multiphase viscous flow assumptions. Computations are performed adopting clustered grids and suitable initial and boundary conditions. The results are verified using the flow field particle image velocimetry (PIV) measurements. Spatial and temporal resolutions are validated. Complex flow phenomena occurring due to the presence of the relatively large sized obstacle are visualized. The effect of wave parameters on the flow structure is investigated. A brief parametric study is presented and the resultant wave forces and turning moments are provided.
Computational Investigations of Arrhenius Activation Energy and Entropy Generation in A Viscoelastic Nanofluid Flow Thin Film Sprayed on A Stretching Cylinder
Authors: Auwalu Hamisu Usman  , Noor Saeed Khan  , Sadiya Ali Rano  , Usa Wannasingha Humphries  , Poom Kumam
Published: August 2021

This paper investigates the two-dimensional and incompressible flow of viscoelastic nano-liquid dynamic and axisymmetric sprayed thin film deposit on a stretched cylinder. It also looked at how activation energy and entropy evaluation affected mass and heat flow. The governing equations are transformed into nonlinear differential equations using similarity transformation techniques, which are then resolved successively using a strong semi-analytical homotopy analysis method (HAM). The velocity decreases as the magnetic field strength and viscoelastic parameters are increased. The temperature rises as the Brownian motion parameter increases, while it falls as the Prandtl number, film thickness parameter, and thermophoresis parameter increase. The greater the Reynolds number and the activation energy parameter, the higher the concentration of nanoparticles. The film size increases nonlinearly with the spray rate. Entropy generation increases as the Brinkmann number, magnetic field, and thermal radiation parameters increase. A nearby agreement is signed after comparing the current investigation with published results. The results obtained, possibly under ideal conditions, could be useful for determining and architecting coating applications.
Magnetohydrodynamic Effects in Mixed Convection of Ferrofluid Flow at Lower Stagnation Point on Horizontal Circular Cylinder
Authors: Siti Hanani Mat Yasin  , Muhammad Khairul Anuar Mohamed  , Zulkhibri Ismail  , Mohd Zuki Salleh
Published: August 2021

In this paper, mixed convection of ferrofluid containing magnetite, Fe3O4 with ferroparticles suspended in water at the lower stagnation point on a horizontal circular cylinder is investigated. The partial differential equation which derived from the transformation of the dimensional governing equation and non-similarity transformation with the consideration of the effect of magnetohydrodynamic (MHD) are solved numerically by using Keller-box method. The influences of an external magnetic field on ferrofluid flow and heat transfer are then discussed. The results showed that the viscosity depends on the ferroparticle volume fraction and ferrofluid temperature. The uniform magnetic field that produced Lorentz force acts as a determiner of the trend of fluid movement and has the tendency to control the cooling rate of the surface.
Stability Analysis of Unsteady Hybrid Nanofluid Flow Past a Permeable Stretching/Shrinking Cylinder
Authors: Nurul Amira Zainal  , Roslinda Nazar  , Kohilavani Naganthran  , Ioan Pop
Published: August 2021

The study of boundary layer flow has gained considerable interest owing to its extensive engineering applications. Thus, this numerical study aims to investigate the stability analysis of unsteady flow in the hybrid Al2O3-Cu/H2O nanofluid past a shrinking permeable cylinder. The impacts of suction and unsteadiness parameters are considered in this study. The partial differential equations are converted into a system of nonlinear ordinary differential equations by selecting suitable similarity transformation and solved using the bvp4c code in the MATLAB program. The findings revealed that the existence of dual solutions is visible. The skin friction coefficient and the local Nusselt numbers of Al2O3-Cu/H2O increase with the inclusion of the suction parameter. The presence of the unsteadiness parameter actively promotes heat transfer degradation on the shrinking cylinder. Stability analysis indicates that a stable and physically realizable solution appeared in the first solution, whereas the second solution is unstable.
Wastewater Treatment Process: A Modified Mathematical Model for Oxidation Ponds
Authors: Syafiqah Hanis Mohd Fauzi  , Norazaliza Mohd Jamil
Published: August 2021

Wastewater treatment aims to eliminate as many suspended solids as possible from the remaining water, known as effluent, before it is released into the environment. Pond oxidation methods have been practically proven successful for the wastewater treatment process because of their low construction and maintenance costs. This study aimed to investigate the degradation of wastewater pollutants through an oxidation pond treatment system. The purpose was to observe the relationship between the concentration of bacteria which are phototrophic and coliform, chemical oxygen demand (COD), and dissolved oxygen (DO). In this paper, a modified model consist of a set of an ordinary differential equation (ODE) has been developed by incorporating the Monod Equation. The model was solved numerically using the 4th order Runge Kutta method embedded in the MATLAB software. The sum of squared estimate of errors (SSE) for the modified model was compared with the SSE of the existing model. The results revealed that the modified model demonstrated a lower SSE compared to the existing model. Thus, the modified mathematical model gives better result than the existing model. The model provides an excellent approximation for concentration needed for an oxidized pond to produce good water quality.
Natural Language Processing for Teaching Ancient Languages
Authors: Schulz Konstantin
Published: August 2021

Konstantin Schulz shows various applications of natural language processing (NLP) to the field of Classics, especially to Latin texts. He addresses different levels of linguistic
analysis while also highlighting educational benefits and important theoretical pitfalls, especially in vocabulary learning. NLP can solve some problems reasonably well, like tailoring
exercises to the learners' current state of knowledge. However, some tasks still prove to be too difficult for machines at the moment, e.g. reliable and highly accurate parsing of syntax
for historical languages.
Practicing Science Communication in Digital Media
Authors: Meinecke Katharina
Published: August 2021

Katharina Meinecke describes a form of ‘Practicing Science Communication in Digital Media: A Course to Write the “Antike in Wien” Blog and Distribute it in Social Media at the University of
Vienna in 2017’. In order to make students familiar with research communication to a general public and to enable them to practice both analogue and digital outreach activities, Meinecke had
students write a blog and share their work in social media. An additional aim of the course was to enhance the visibility of Classical Archaeology in Vienna by highlighting the relevance of
Classical antiquity in the city until today through content created by the participants.
Classical Studies for the New Millennium
Authors: Bozia Eleni
Published: August 2021

In her contribution ‘Classical Studies for the new millennium: traditional material through new methods and perspectives’, Eleni Bozia presents a variety of digital teaching examples that also
address contemporary problems, such as identity politics from antiquity to contemporary time, the symbiotic relationship between humanities and technology, and the significance of language learning.
Students are taught to work on ancient representations of ethnicity, race, and citizenship and their modern equivalents, engage with the significance of technology for the humanities and vice versa,
and appreciate the politics of language in all disciplines and areas of research, by engaging in digital storytelling, using digital resources in sociolinguistic analysis of ancient and modern texts,
and pursuing interdisciplinary projects.
Mapping Cicero’s Letters
Authors: Myers Micah Young
Published: August 2021

Micah Myers describes the project ‘Mapping Cicero’s Letters: Digital Visualizations in the Liberal Arts Classroom’: A team comprising of classics faculty member, instructional technologists, and
undergraduate students create digital visualizations of ancient Mediterranean travel narratives and investigate them as reflections of the geospatial and travel-related conceptions of ancient authors
and audiences. The project therefore represents an ideal combination of content and method: its primary learning aims are increased student facility with tabular data, data visualization, ancient
Mediterranean geography and travel, and late Republican Roman history.
A New Way of Teaching Ancient History
Authors: Lozano Gómez Fernando , Álvarez-Ossorio Rivas Alfonso , Sánchez Domínguez Víctor
Published: August 2021

Fernando Lozano Gómez, Alfonso Álvarez-Ossorio Rivas, and Victor Sánchez Domínguez assess the conclusions of several successive research projects on teaching innovation funded by the University of
Seville. Members of the Department of Ancient History developed these projects that are indebted to game based learning. The main goal was to present History in all its complexity, without
simple explanations, and to improve the student’s general knowledge of the subject by promoting autonomous learning. The paper presents the new teaching materials created by the members of the project.
These include an open access handbook with specific teaching tools, instructions for autonomous learning through historical role-play, and the use of timeline playing cards in the university
classroom for learning History.
Mapping Ancient Rome and Teaching 3D Technologies
Authors: Arvanitis Nikolaos
Published: August 2021

Nikolaos Arvanitis explains the process of ‘Mapping ancient Rome and teaching 3D technologies’ using Paul Bigot’s bronze model at the Institute d’art et d’archéologie in Paris to build a
pedagogical project. The aim is to digitize Bigot’s model in 3D and study it on a multi-folded perspective, for example in view of its use as teaching material both for students and scholars
through an in-depth analysis of its construction and its methodological procedures, but also for further familiarisation of younger children with the ancient city. A 3D model visualised on
a simple interactive web-GIS will be elaborated for the disclosure of the ancient city monuments on a global level, used by schools and teaching specialists through the net.
Ancient Languages and the Modern Learner
Authors: Colvin Ian , Hay Lisa
Published: August 2021

Ian Colvin and Lisa Hay present the 'University of Cambridge School Classics' Project which has been developed to support school-level teaching. From humble beginnings like simple vocabulary testers,
the program has since evolved to a large range of resources including schemes of work for civilisation topics, documentaries on aspects of ancient life, and support for reading authentic literature.
By removing some of the 'performance' elements of a traditional classroom, these interactive resources can support positive learning habits, risk taking, and creativity. The core aim of the project
remains to help make the classical world accessible to as many students as possible'.
THERAPEUTIC TACTICS FOR PEPTIC STRICTURES OF THE ESOPHAGUS. LITERATURE REVIEW
Authors: Gankov V. A. , Andreasyan A. R. , Maslikova S. A. , Bagdasaryan G. I. , Shestakov D. Yu.
Published: August 2021

The work is based on the analysis of literature data devoted to the choice of treatment for peptic esophageal strictures. The main goal of this review is to identify treatment tactics for patients with stenosing reflux esophagitis.

 Researchers point out that the main causes of GERD are a decrease in pressure in the lower esophageal sphincter, the action of the damaging properties of the refluctant. Untimely treatment of GERD can lead to complications such as peptic stricture, Barrett's esophagus. The appearance of GERD stricture is most often promoted by: persistent heartburn after bougienage, erosion of the lower third of the esophagus, shortening of the II degree esophagus, and inadequate antisecretory therapy.

Various methods of treatment at all stages of the appearance of peptic stricture are presented, depending on the degree of dysphagia and the length of the stricture, the use of adequate conservative therapy regimens for PPIs, bougienage, as well as a description of various methods of antireflux operations. Endoscopic dilation is the first treatment option for all symptomatic benign esophageal strictures. There are treatments for benign refractory esophageal strictures such as endoscopic dilatation with intraluminal steroid injection, endoscopic postoperative therapy or stricturoplasty, esophageal stenting, self-bougienage, as well as surgery - antireflux surgery, esophagectomy with replacement of the esophagus by the stomach or colon [1].

The main goal in the treatment of peptic esophageal strictures, according to most authors, is to eliminate the progression of GERD, conduct bougienage or balloon dilatation, and select the optimal antireflux surgery. Treatment for peptic strictures should minimize the risk of re-stricture of the esophagus.
ROLE OF MINI-INVASIVE SURGERY IN TREATMENT OF LACTATION MASTITIS
Authors: Yakovenko O. I. , Yakovenko T. V. , Akimov V. P. , Tkachenko A. N.
Published: August 2021

Introduction. Lactation mastitis is not a rear pathology. It is observed at every tenth parturient woman, mainly in the case of premature termination of breastfeeding. When analyzing the structure of postpartum purulent-inflammatory complications, most researchers report about high frequency lactational mastitis (in 26-67% cases). The technique of conducting wide incisions to drain the breast abscess and drug cessation of lactation was adopted to treat lactational abscess.

Purpose. Specify the location for minimally invasive surgical techniques (puncture and drainage of the nidus of infection under ultrasound guidance) in the complex treatment of lactational abscesses of the mammary glands.

Materials and methods. 64 parturient women suffering from verified lactation abscesses were observed. Average age of patients was 24,9±4,5 years (from 21 to 44). The research was carried out during 3 years: from 2018 to 2020. All patients were on outpatient treatment and under observation. Conservative and surgical (minimally invasive) methods of breast abscess treatment were applied. Puncture of the lactation abscess was carried out with a thick needle (18g «pink»), at the greatest distance from the areola, after expressing / feeding.

Results. 41% of breast abscesses occurred during lactation up to 1 month, while in 34% of cases, the period of lactation was in the range from 1 to 3 months. In 16% of patients, an abscess formed during lactation from 3 to 7 months, in 7% of cases - from 7 to 18 months. Duration of breastfeeding was investigated at the 3rd day, 3rd week and 12th week after surgery. Breastfeeding was interrupted on women’s request. As a result we found out, that minimally invasive (puncture, drainage) surgical methods for treating breast abscesses should be prioritized at complex treatment programs for lactational mastitis.
ENDOSCOPIC STENTING IN THE TREATMENT OF RECURRENT EPIPHRENIC DIVERTICULUM AFTER LAPAROSCOPIC DIVERTICULECTOMY. CLINICAL CASE REPORT
Authors: Gallyamov E. A. , Busyrev Yu. B. , Gvozdev A. A. , Shalygin A. B. , Fedorov A. V.
Published: August 2021

Epiphrenic diverticulum, also known as a pulsion diverticulum, is a rare type of esophageal diverticulum occurring in the distal 10 centimeters of the esophagus. They are most commonly 4-10 cm above the gastric cardia representing 10% of all esophageal diverticula. Laparoscopic diverticulectomy has become the treatment of choice. This clinical case study is dedicated to minimally invasive treatment of recurrent epiphrenic diverticulum after laparoscopic diverticulectomy. A 74-year-old male patient was admitted to the hospital with complaints of dysphagia, regurgitation and halitosis. The examination revealed a 5 cm epiphrenic diverticulum with sings of inflammation. Laparoscopic transchiatal diverticulectomy, the Dor (anterior) fundoplication, cruroraphia and mediastinal drainage were performed. The patient was discharged on the 11-th postoperative day. The patient exhibited dysphagia relapse during a 3-month follow-up. Taking into account the previous surgical treatment and the habitus endoscopic esophageal stenting was chosen as the technique of choice for management. Under intravenous anesthesia a partially covered metal self-expandable stent 10 cm x 1.8 cm was inserted into the distal esophagus. Next day control fluoroscopy showed stable stent position and no evidence of leakage. The water-soluble contrast agent reached stomach freely. The patient was discharged on the 2nd post-operative day. Within 4 months after having a stent placed, the patient feels well and oral feeding is satisfactory. In terms of literature search we have not come across any reference to the post-epiphrenic diverticulectomy recurrence treatment, so the management was chosen individually based on the comorbid status of the patient. The installation of a partially covered metal self-expandable stent allowed to promptly eliminate dysphagia and design features enabled to achieve stent stable position. A partially covered metal self-expandable stent can be considered effective in the post-epiphrenic diverticulectomy recurrence treatment.