bluuebunny/crossref_metadata_2025 huggingface dataset:
Modelling the Origin, Fate, and Ecological and Health Impacts of Heavy Metals from an Abandoned Mercury Mine in a Paradise Island in the Philippines
Authors: Diwa Reymar R. , Deocaris Custer C. , Geraldo Lhevy D. , Belo Lawrence P.
Published: March 2022

A recent survey that determined heavy metal concentrations in an abandoned Hg mine in Palawan, Philippines, found the occurrence of Hg with As, Ba, Cd, Co, Cr, Cu, Fe, Hg, Mn, Ni, Pb, Sb, Tl, V, and Zn. While the Hg originated from the mine waste calcines as supported by previous studies, the critical knowledge about the origin of the other heavy metals remains to be unknown. Our study investigated the sources of heavy metal pollution surrounding the abandoned Hg mine; and assessed the soil and sediment quality, ecological risks, and health risks associated with these toxic metals. Multivariate analyses, such as hierarchical cluster analysis (HCA), principal component analysis (PCA), and Pearson correlation analysis, were used to identify the heavy metal sources from the results of a previous paper. Our results showed that Fe, Ni, Cr, Co, and Mn are associated with the ultramafic geology of the study, whereas As, Ba, Cd, Cu, Pb, Sb, Tl, V, and Zn are likely due to historical mining and processing of cinnabar from 1953-1976. The mine waste calcines were used as construction material for the wharf and as land filler for the adjacent communities. The modified contamination factor (mCdeg) showed that the coast of Honda Bay is highly contaminated, while the inland areas, including the rivers, are very- to ultra-highly contaminated. There is a considerable ecological risk associated with the heavy metals, wherein Ni, Hg, Cr, and Mn contribute an average of 46.3 %, 26.3 %, 11.2 %, and 9.3 % to the potential ecological risk index (RI), respectively. The overall mean hazard index (HI) for both adults (1.4) and children (12.1) exceeded 1, implying the probability of non-carcinogenic adverse effects. The mean total cancer risk over a lifetime (LCR) for both adults (1.19×10-3) and children (2.89×10-3) exceeded the tolerable threshold of 10-4, suggesting a potentially high risk for developing cancer mainly by Ni, Co, and Cr exposure.
The Rapid Adaptation and Optimisation of a Digital Behaviour Change Intervention to Reduce the Spread of COVID-19 in Schools
Authors: Treneman-Evans Georgia , Ali Becky , Denison-Day James , Clegg Tara , Yardley Lucy , Denford Sarah , Essery Rosie
Published: March 2022

The rapid transmission of COVID-19 in school communities has been a major concern. To ensure that mitigation systems were in place and support was available, a digital intervention to encourage and facilitate infection control behaviours was rapidly adapted and optimised for implementation as a whole school intervention. Using the person-based approach, ‘Germ Defence’ was iteratively adapted, guided by relevant literature, co-production with Patient and Public Involvement representatives, and think aloud interviews with forty-five school students, staff, and parents. Suggested infection control behaviours deemed feasible and acceptable by the majority of participants included handwashing/hand-sanitising and wearing a face covering in certain contexts such as crowded public spaces. Promoting a sense of collective responsibility was reported to increase motivation for the adoption of these behaviours. However, acceptability and willingness to implement recommended behaviours seemed to be influenced by participants’ perceptions of risk. Barriers to the implementation of recommended behaviours in school and at home primarily related to childcare needs and physical space. We conclude that it was possible to rapidly adapt Germ Defence to provide an acceptable resource to help mitigate against infection transmission within and from school settings. Adapted content was considered acceptable, persuasive, and accessible.
Corrosion Resistance of Fe-Contaminated Al-Si-CU-Zn Alloys Modified With NI and Co and with Variable Secondary Dendrite Arm Spacing
Authors: Xavier Marcella G.C. , Freitas Brenda J.M. , Koga Guilherme Y. , Spinelli Jose Eduardo
Published: March 2022

The corrosion behavior of Fe-containing directionally solidified (DS) and centrifugally cast (CC) Al-Si-Cu-Zn alloys with either Co or Ni additions has been investigated. Electrochemical and immersion corrosion methods were used to investigate the corrosion behavior in 0.6 M NaCl after short (1-hour) and long (30-day) exposure periods. The employed solidification methods allowed the production of samples with a wide range of secondary dendrite arm spacing (SDAS) while preserving Si and Fe-containing phases. The 0.5 wt.% Ni and Co additions led to the growth of the AlFeSi(Ni) and AlFeSi(Co) phases, but no binary AlNi nor AlCo intermetallic par-ticles have been generated. Potentiodynamic polarization studies at early exposure revealed an increase in the corrosion potential as the Ni was added for either fast or slow solidified samples. The electrochemical impedance spectroscopy at early exposure demonstrated that the Ni-modified alloy, on the other hand, was associated to smaller charge transfer resistances, in-dicating a reduction in corrosion resistance after short elapsed time into the electrolyte. Howev-er, 30-day immersion tests revealed much lower corrosion rate of the Ni-modified alloy than the other alloys, while the corrosion rates of the Co-modified and non-modified alloys were simi-lar. In the Ni-containing alloy, decreased corrosion rate under long-term corrosion process was attributed to the formation of a thick and dense alumina layer, effectively protecting the surface under such conditions. This work contributes to a better knowledge of the corrosion behavior of Ni- and Co-corrected Al industrial scrap compositions.
Modelling the Mobility Changes Caused by Perceived Risk and Policy Efficiency: A Case Study in Leeds
Authors: Wu Sijin , Grant-Muller Susan , Yang Lili
Published: March 2022

In many countries, governments have implemented non-pharmaceutical techniques to limit COVID-19 transmission. Restricting human mobility is one of the most common interventions, including lockdown, travel restrictions, working from home, etc. However, due to the strong transmission ability of the virus variants, further rounds of interventions, including a strict lockdown, are not considered as effective as expected. The paper aims to understand how the lockdown policy and pandemics changed human mobility in the real scenario. Here we focus on understanding the mobility changes caused by compliance with restrictions and risk perceptions, using the mobility index from the Google report during three strict lockdown periods in Leeds, the largest city in the county of West Yorkshire, England from March 2020 to March 2021. The research proposed the time-varying z-scores and Principal Component Analysis (PCA) to simulate how local people dynamically process and perceive health risk based on multi-dimensional daily COVID-19 reports first. Further modelling highlights exponentially increasing policy non-compliance through the duration of lockdown, probably attributable to factors such as mental anxiety and economic pressures. Finally, the proposed nonlinear regression model examines the mobility changes caused by the population's dynamic risk perceptions and lockdown duration. The case study at Leeds fits data well and shows that the third lockdown policy took effect much slower than the first. At the same time, the negative impact of the epidemic on population mobility decayed 40% in the third lockdown period in contrast with the first lockdown. The risk perception estimation methods could reflect that the local population became increasingly accustomed to the COVID-19 situation, and local people rationally evaluated the risks of COVID in the third lockdown period. The results prove that simulated risk perceptions and policy decay could explain urban mobility behaviour during the mobility well during lockdown periods, which could be a reference for future decision-making processes.
Identifying Threats and Strategies for Conservation and Management of the Globally Distributed Olive Ridley (Lepidochelys Olivacea) Sea Turtle
Authors: Bhuyan Md. Simul , Cáceres-Farias Lenin , Espinoza Joelly , Fernández-Sanz Helena , Reséndiz Eduardo , Alfaro-Núñez Alonzo
Published: March 2022

The olive ridley (Lepidochelys olivacea) sea turtle is the most abundant sea turtle, with an estimated of 800,000 females nesting each year worldwide. The olive ridley is found across the tropical regions of the Atlantic, Pacific, and Indian Oceans all around the globe. It can be found widely distributed in over 80 different countries. Despite being the most common and prolific of all the seven sea turtle species, olive ridley populations have declined considerably in recent decades. Worldwide, olive ridleys have been experienced a 30-50% decline, putting their populations at risk and being considered an Endangered Species by the IUCN for over a decade now. Bycatch, illegal trade, natural habitat degradation, predation by humans and animals, pollution, and climate change are the most destructive factors for olive ridley populations decline. The present review assesses the numerous dangers that the olive ridley turtle currently faces. To preserve olive ridley rookeries, stronger conservation initiatives must be undertaken. Policies and laws, protection of natural environments, real commitments in reducing the effects of climate change, and awareness should be raised among coastal communities to protect this turtle species.
The interiorization of graduate studies in the south of the Amazonas: rights, impacts and challenges
Authors: Pinto Valmir Flores , Pimentel Elizabeth Tavares , Costa Rosangela Carvalho da
Published: March 2022

The installation of public higher education in the interior of the State of Amazonas is recent or, if you like, late. The result of this state policy has its cultural and social as well as economic and political consequences. The southern region of Amazonas, the locus from which we make this reflection, comprises a vast territory with needs for qualified service in various areas. Higher education, at the stricto sensu postgraduate level, is yet another very important tool to provide opportunities and qualify professionals, especially those who work in basic education. The Postgraduate Program in Science and Humanities Teaching (PPGECH) at the Federal University of Amazonas (UFAM), object of this reflection, is the only PPG in the interior of the State of Amazonas directed towards the qualification of professionals working in education. Thus, this reflection seeks to highlight the elements that involve the history of PPGECH, the importance of interiorization, since all courses were located in the capital Manaus, the impacts on the teaching area, from a cultural, economic and social perspective, as well as international relations, with the presence of students from other countries.
School daily life in times of pandemic: perceptions of education professionals in the public network of Rio de Janeiro
Authors: Pinto Renata Cristina Barreto , Quiterio Patricia Lorena
Published: March 2022

The objective of the research was to analyze the perceptions of education professionals about the access to digital teaching platforms and the changes in school dynamics resulting from the pandemic context. In the period from March to August 2020, statements of these professionals from the public network of Rio de Janeiro were collected in open Facebook groups. The data were analyzed in the software Iramuteq constituting a corpus with 1,086 text segments and 91.07% utilization, presenting two thematic branches with six classes: remote teaching modality, conditions of access to technology, union organization, security measures for the return and school structure, concern with the preservation of life and school as a place of risk and spread of the virus. The results indicated concerns with the possibility of contamination due to the physical conditions of the school units and with the exclusion of access to remote activities for most students.
Content and structure of professional competence of future teachers of fine arts
Authors: Tsekhmister Yaroslav , Pak Antonina , Nosachenko Tetyana , Daniluk Liudmila
Published: March 2022

The article provides a detailed analysis of the definitions of “competency” and “competence” of a fine arts teacher and distinguishes key differences between these concepts. Generalized theoretical provisions regarding the content of the concept “professional competence of a teacher”, which is considered as an integral personal quality, which is manifested in the practical application of professional knowledge, the ability to solve problems in accordance with the direction of activity, the willingness to perform their professional duties in accordance with generally accepted standards of modern education, apply and expand the life and professional experience, effective interaction with colleagues and students. The study to determine the level of formation of relevant competencies in future teachers of fine arts in the course of experimental training has been carried out. The need for special conditions and programs aimed at improving the professional competence of future teachers of fine arts in the institutions of professional education has been determined.
Penerapan Model Pembelajaran Assure Berbasis Daring/E-Learning pada Mata Kuliah Bahasa Inggris di Sekolah Tinggi Teknologi Sinar Husni
Authors: Nur Rahmi Wiwit
Published: March 2022

Permasalahan dari penelitan ini adalah ketidakmampuan mahasiswa STT Sinar Husni dalam menguasai materi Bahasa Inggris dengan baik dikarenakan pembelajaran dilakukan secara daring. Pembelajaran daring akan sulit untuk dilakukan jika tidak menemukan model pembelajaran yang tepat. Model pembelajaran Assure adalah model pembelajaran yang tepat untuk pembelajaran berbasis daring/E-Learning. Topik penelitian ini adalah untuk menerapkan model pembelajaran Assure berbasis daring/E-Learning pada mata kuliah Bahasa Inggris dengan tujuan untuk meningkatkan keterampilan mahasiswa dalam berbahasa Inggris dan mengetahui sejauh mana prestasi mahasiswa dalam berbahasa Inggris. Tahapan metode penelitian dilaksanakan dalam empat tahap yaitu perencanaan, tindakan, observasi, dan refleksi. Hasil penelitian menyimpulkan bahwa nilai rata-rata mahasiswa meningkat saat pre-test, siklus I dan siklus II yaitu 16.67, 51.34 dan 85 serta persentasi keberhasilan mahasiswa yang meningkat dari 0%, 46.67%, hingga 100%. Hasil lembar observasi dan kuesioner juga membuktikan bahwa model pembelajaran Assure berbasis daring/E-Learning secara signifikan berhasil meningkatkan kemampuan mereka pada mata kuliah Bahasa Inggris.

The problem of the research is the students’ inability at STT Sinar Husni in mastering English well because the learning is conducted by using online learning. It will be difficult to be conducted if the lecturer did not find the right learning model. Assure learning model is the appropriate learning model based on online/E-Learning. The topic of this research is to apply Assure learning model based on online/E-Learning in English course with the aim to improve the students' skills in English and knowing the extent of student achievement in English. The steps of the research method was carried out in four steps, namely planning, action, observation, and reflection. The results of the study concluded that the mean score of students increased during the pre-test, cycle I and cycle II, namely 16.67, 51.34 and 85 and the percentage of the students achievement also increased from 0%, 46.67%, to 100%. The results of the observation sheet and questionnaires also proved that Assure learning model based online/E-Learning has significantly improved the students’ ability in English.
Pengembangan E-Modul Berbasis Bim Autodesk Infraworks Pada Mata Pelajaran Konstruksi Jalan Dan Jembatan Di SMKN 1 Cikarang Barat
Authors: Ramadhan M. Agphin , Anisah Anisah , Darmawan Oki Dwi
Published: March 2022

Penelitian ini merupakan jenis penelitian pengembangan yang bertujuan untuk mengembangkan dan menghasilkan produk bahan ajar e-modul perencanaan desain jalan dan jembatan berbasis BIM pada Mata Pelajaran Konstruksi Jalan dan Jembatan di SMKN 1 Cikarang Barat. Penelitian ini menggunakan metode 4D yang terdiri dari empat tahapan penelitian yaitu tahap Define, Design, Development, dan Dissemination. Hasil kelayakan dari uji validasi materi menunjukan 90% (sangat layak) dan hasil uji validasi media menyatakan 87% e-modul sangat layak digunakan, lalu hasil uji coba terbatas menunjukan peningkatan kognitif kategori sedang dengan nilai gain score (g) 0,6 dan nilai respon siswa uji terbatas sebesar 82% yang menyatakan e-modul sangat praktis untuk digunakan. Berdasarkan data uji validasi dan uji coba terbatas tersebut dapat disimpulkan e-modul berbasis BIM pada mata pelajaran Konstruksi Jalan dan Jembatan ini sangat layak digunakan sebagai variasi bahan ajar dalam pembelajaran mandiri bagi siswa SMKN 1 Cikarang Barat.
Penerapan Pembelajaran Secara Daring Aplikasi Google Classroom Di SMPTK Galang Kasih
Authors: Ahmad Dhenny Bagaskara Ahmad Dhenny Bagaskara , Anindia Putra I Nyoman Tri
Published: March 2022

Penulis disini telah memperoleh informasi mengenai hasil dari penelitian terhadap SMPTK Galang Kasih dari penulis sebelumnya, secara keseluruhan. Lalu penulis hendak melanjutkan kinerja kearah programnya yakni, penyediaan materi pembelajaran interaktif mata pelajaran Sejarah Gereja, terdiri dari kegiatan pembuatan slide materi belajar dan juga pembuatan video belajar interaktif (sebagaimana hasil yang disepakati bersama, setelah penulis sebelumnya melakukan evaluasi dengan seluruh anggota kelompok lainnya dan juga tenaga pendidik disekolah terkait). Diperoleh juga informasi, sebagian besar tenaga pendidik disekolah tersebut, masih kurang menguasai penggunaan teknologi lain guna implementasi pengefektifan proses belajar mengajar mereka. Karenanya, disini penulis melanjutkan program kegiatan sekaligus memutakhirkan penelitiannya dengan melakukan penjadwalan terkait waktu perangkuman materi dan pengambilan video belajar dengan tenaga pendidik dari mata pelajaran Sejarah Gereja disekolah tersebut, diharapkan setiap hasil akhir dari program ini dapat mengefektifkan proses belajar mengajar disana, sehingga mampu menaikkan kembali minat belajar siswa/i nya dan tentu akan berujung pada peningkatan nilai setiap siswa/i dalam pembelajaran mereka kedepannya. Media pembelajaran ini juga dapat digunakan secara berkelanjutan kedepannya disekolah tersebut.
Pemanfaatan Prinsip Personalisasi Belajar dalam Pembelajaran Daring pada Mata Kuliah Designing E- Learning
Authors: Pratiwi Meidiani Elsandra , Imbar Kunto , Prawiradilaga Dewi S.
Published: March 2022

The utilization of learning personalization principles in online learning for Designing E- Learning Course intended to create a personalize online course by utilizing the principles invented by Margaret Martinez and David A Wiley on Instructional Use of Learning Object book. In which its application represented in Designing E- Learning course. 

This research is applying Rapid Prototyping method consisting of 5 main stages which are: Assess Needs and Analyse Content; Set Objectives; Construct Protoype; Utilize Protoype; Install and Maintain System, that are only conducted to install without maintain system.

This research has been reviewed by instructional designer expert with score 3.8, instructional media expert with score 3.6, and materials expert for Designing E- Learning course with score 3.8, in which each review received “Very Well” credit with minor adjustment needed. The review from users also received a “Very Well” credit with average score is 3.73
Media Pembelajaran Permainan Papan Untuk Pendidikan Seksualitas di Lembaga DIAR
Authors: Khalidah Hanin , Mulyadi  , Ariani Diana
Published: March 2022

Penelitian pengembangan ini menghasilkan sebuah media pembelajaran berupa permainan papan untuk Pendidikan Seksualitas pada Lembaga Pendidikan Anak dan Remaja untuk peserta didik Sekolah Dasar kelas 1-3. Model pengembangan yang digunakan adalah SAM 1 (Successive Approximation Model). Model ini terdiri dari tiga tahap, yaitu evaluasi (analisis), desain, dan pengembangan yang diulang dalam tiga siklus (iterative). Diakhiri dengan evaluasi (expert review) oleh ahli media, ahli desain pembelajaran, dan ahli materi. Evaluasi yang diterapkan adalah evaluasi formatif menggunakan angket terbuka. Hasil evaluasi yang telah dilakukan membuktikan bahwa papan permainan sudah layak untuk digunakan setelah melalui revisi berulang pada siklus ke-1 dan siklus ke-2. Hasil tinjauan para ahli menyatakan bahwa permainan papan dapat digunakan sebagai media pembelajaran untuk pendidikan seksualitas pada lembaga pendidikan anak dan remaja yang juga didukung dari hasil skor yang diraih pada evaluasi formatif dengan nilai 3,4 yang artinya sangat baik.

 

This research and development resulted in a board game as the instructional media for sexuality education in Pendidikan Anak dan Remaja Institution for elementary school students grade 1 until 3. The method used in this developmental research is The SAM 1 (Successive Approximation Model). This model consists of three iterative stages, evaluation (analysis), design, and development. This model ended with formative product evaluation by three experts: instructional media, instructional design, and subject matters experts using an open questionnaire. The evaluation results show that the board game fit the criterion to be used as an instructional media for sexuality education in Pendidikan Anak dan Remaja (DiAR) Institution after several revisions in 1st and 2nd iterative with the score 3,4 which means ‘Excellent’.
SISTEM INFORMASI SIMPAN PINJAM DAN MANAJEMEN KEUANGAN KOPERASI BERBASIS WEB
Authors: Febby Kesumaningtyas  , Reti Handayani
Published: March 2022

Sistem informasi simpan pinjam pada Koperasi Unit Desa Sungai Aur 1 ini berfungsi untuk membangun sebuah aplikasi yang diharapkan dapat menunjang dalam pengolahan data administrasi simpan pinjam yang dimaksudkan memberikan kemudahan bagi user untuk mengolah data anggota dan memberikan pinjamannya. Berdasarkan penelitian yang penulis lakukan pada Koperasi Unit Desa Sungai Aur 1 maka penulis dapat menarik kesimpulan yaitu Dengan memanfaatkan sistem komputerisasi diharapkan dapat membantu proses pengambilan keputusan dan dengan memanfaatkan pemograman web sebagai software aplikasi diharapkan dapat menggantikan cara yang kurang efektif dan efisien serta diharapkan dapat mempermudah pembuatan laporan hasil proses pengambilan keputusan.

 

The savings and loan information system at the Sungai Aur 1 Village Cooperative serves to build an application that is expected to support the processing of savings and loan administration data which is intended to make it easy for users to process member data and provide loans. Based on the research that the author did at the Sungai Aur 1 Village Cooperative Unit, the writer can draw conclusions, namely by utilizing a computerized system it is expected to help the decision-making process and by utilizing web programming as an application software is expected to replace less ef ective and ef icient ways and is expected to facilitate the making. report on the results of the decision making process.
IDENTIFIKASI BERITA HOAX MENGGUNAKAN FUZZY LOGIC
Authors: Anita Sindar
Published: March 2022

Berita palsu dikenal dengan hoax, berasal dari sumber berita yang kebenarannya diragukan. Media sosial menjadi salah satu keberagaman informasi yang ditawarkan dan keleluasaan dalam membentuk koneksi pertemanan. Setiap orang memiliki kebebasan dalam beropini dalam lingkup sedunia. Banyaknya keuntungan yang diperoleh sipembuat berita hoax.Logika Fuzzy memiliki beberapa kelebihan dibanding logika lain. Penggunaan konsep matematis yang mendasari penalaran Logika ini dinilai sangat sederhana, sehingga mudah dimengerti. Selain itu, data-data yang belum tepat tidak akan langsung dinilai, namun dianalisa lebih mendalam dengan batas toleransi tertentu, sehingga dinilai lebih fleksibel. Fuzzy logic menginterpretasikan statemen yang samar menjadi sebuah pengertian yang logis. Penegasan (Defuzzyfikasi), metode penegasan yang digunakan adalah metode centroid. Himpunan fuzzy adalah pengelompokkan sesuatu berdasarkan variabel bahasa (linguistik variabel), yang dinyatakan dengan fungsi keanggotaan dalam semesta U. Keanggotaan suatu nilai pada himpunan dinyatakan dengan derajat keanggotaan yang nilainya antara 0.0 sampai 1.0. penentuan tingkat penentuan berita hoax terhadap masyarakat ditentukan variabel input dan output.

 

Fake news is known as hoax, originating from news sources whose truth is questionable. Social media is one of the diversity of information offered and the flexibility to form friendship connections. Everyone has freedom of opinion on a worldwide basis. There are many advantages to hoax news makers. Fuzzy logic has several advantages over other logics. The use of mathematical concepts that underlie logical reasoning is considered very simple, so it is easy to understand. In addition, inaccurate data will not be immediately assessed, but will be analyzed more deeply with a certain tolerance limit, so that it is considered more flexible. Fuzzy logic interprets vague statements into a logical sense. Affirmation (defuzzyfication), the affirmation method used is the centroid method. A fuzzy set is a grouping of something based on language variables (linguistic variables), which is represented by a membership function in the universe U. Membership of a value in a set is expressed by the degree of membership whose value is between 0.0 to 1.0. determining the level of determining hoax news to the public is determined by the input and output variables.
SISTEM INFORMASI IMPLEMENTASI TOKO ONLINE PADA KPN DINAS PENDIDIKAN BUKITTINGGI
Authors: Kesumaningtyas Febby
Published: March 2022

Abstrak

Pembangunan sebuah aplikasi yang diharapkan dapat menunjang pendapatan dan meningkatkan kinerja karyawan, yang dimaksudkan memberikan kemudahan bagi anggota koperasi untuk mendapatkan berbelanja dari rumah. Berdasarkan penelitian yang penulis lakukan padaKPN Dinas Pendidikan Bukittinggi maka penulis dapat menarik kesimpulan yaitu dengan memanfaatkan system komputerisasi diharapkan dapat membantu proses jual beli dan dengan memanfaatkan pemograman web sebagai software aplikasi diharapkan dapat meninggkatkan pendapatan dan pelayanan pada koperasi.

 

Kata Kunci : Sistem, Administrasi, Website, Online.
PENDETEKSI SUHU TUBUH MENGGUNAKAN SENSOR INFRARED MLX90614 SEBAGAI UPAYA PENCEGAHAN COVID-19 DI INSTITUT TEKNOLOGI PADANG
Authors: Busran
Published: March 2022

Suhu tubuh merupakan tanda keadaan seseorang sehat atau tidak. Untuk mengetahui suhu tubuh dibutuhkan termometer tubuh. Pada umumnya alat ini membutuhkan sentuhan langsung dan waktu paling cepat satu atau dua menit untuk mendapatkan pembacaan suhu tubuh manusia. Terlebih di masa pandemi covid-19 diperlukan pengecekan suhu tubuh tanpa kontak langsung sebagai pendeteksian dini pencegahan penularan covid-19. Tujuan Penelitian ini merancang alat yang digunakan untuk mendeteksi suhu tubuh guna membantu penerapan protokol kesehatan dalam upaya pencegahan covid-19 yang ada di lingkungan Institut Teknologi Padang. Suhu dideteksi menggunakan sensor infrared mlx90614 didekatkan pada bagian tubuh yang paling mengeluarkan panas misalnya dahi dan tangan. Hasil pada pendeteksian suhu diperoleh data dalam satuan derajat celcius (c), sehingga didapatkan data yang akan digunakan sebagai patokan penggunaan alat yaitu (35,30 oC - 28,71 oC = 6,59 oC). Data yang telah didapatkan dimasukkan pada program yang disimpan dalam arduino untuk pemrosesannya, selanjutnya dengan arduino sebagai unit pemprosesan akan mengirim data pada raspberry pi dan menghasilkan output yang dimana jika suhu berada di bawah 37,5 oc maka akan menampilkan data pada lcd dan mengaktifkan desinfektan dan pintu otomatis. Sedangkan jika suhu diatas 37,5 oc, buzzer akan berbunyi dan menampilkan data pada LCD. Kesimpulan penelitian ini bahwa alat yang dirancang dapat mendeteksi suhu tubuh sesuai dengan protokol kesehatan di lingkungan Institut Teknologi Padang.
REKRUTMEN KARYAWAN BARU BERBASIS METODE ANALYTICAL HIERARCHY PROCESS (AHP)
Authors: Kurnia Dona
Published: March 2022

Sistem pendukung keputusan   kegiatan rekrutmen karyawan baru. Salah satu metode yang dapat digunakan adalah metode Analytical Hierarchy Process (AHP) dimana proses rekrutmen karyawan baru dengan metode AHP bertujuan untuk  membantu manajer dalam pengambilan keputusan pada proses seleksi karyawan baru dengan menyajikan alternatif-alternatif yang ditampilkan dalam bentuk sistem perangkingan alternatif.  Pada jurnal ini studi kasus dilakukan pada PT. Mitra Bisnis Seluler Kota Bukittinggi yang pada saat ini sedang melakukan proses rekrutmen karyawan baru.  Untuk mempermudah manajer dalam pengambilan keputusan seleksi rekrutmen karyawan baru dengan metode AHP maka akan sehingga akan menghasilkan karyawan yang benar-benar berkualitas. Rekrutmen karyawan baru menggunakan 4 kriteria yaitu administrasi, pengetahuan, psikotest dan interview dengan CR= 0,01 yang menunjukan kriteria dapat diterima karena hasil yang ditunjukkan CR<10%. Analisa dilakukan terhadap 5 sampel kandidat karyawan baru yang menghasilkan perankingan dimana kandidat 3 memperoleh nilai tertinggi yaitu 0,28. Setelah proses pengujian dilakukan dengan aplikasi rekrutmen karyawan baru menggunakan metode AHP yang diterapkan pada 5 kandidat karyawan baru menunjukan bahwa sistem dapat dikategorikan dalam kondisi yang baik digunakan untuk pengambilan keputusan oleh manajer dalam proses seleksi karyawan baru.
IMPLEMENTASI ROUTING PROTOKOL BORDER GATEWAY PROTOCOL (BGP) PADA ROUTER MIKROTIK RB 2011 DI KOMINFO KABUPATEN SOLOK SELATAN
Authors: Putra Eko Kurniawanto
Published: March 2022

Perkembangan teknologi digital saat pada saat ini sangat pesat, untuk mengiringi hal ini factor pendukung dari teknologi digital juga di harus kan dapat mendukung perkembangan ini faktor pendukung berupa instalasi jaringan komputer. Berbagai macam model penerapan jaringan komputer yang ada dapat di sesuai kan dengan kebutuhan dari pemakai layanan dipengaruhi dari proses route atau jalur penghubungnya antara sesama jaringan komputer. Seperti Kabupaten Solok Selatan yang sedang berbenah dengan semua kedinasan  yang  ada  dapat  tegabung  dalam sebuah  jaringan  komputer yang  dapat  di kontrol terpusat. Untuk  mengatasi  masalah  tersebut  maka  dibuatlah  implementasi  jaringan  berskala MAN ( Metropolitan Area Netwok) pada Kabupaten Solok Selatan. Lokasi dari kedinasan yang ada di Kabupaten Solok Selatan sangat berpengaruh dalam implementasi jaringan ini. Model penentuan jalur (routing) sangatberpengaruh, untuk menghubungkan semua kedinasan adalah routing BGP (Border Gateway Protocol) yang mendukung untuk implementasi jaringan dalam skala besar. Kualitas Implementasi routing BGP dapat di jaga dengan pengujian QoS yang memaksimalkan teknologi digital yang ada di Kabupaten Solok Selatan. pengontrolan terpusat pada di dinas Komunikasi Dan Informatika (KOMINFO) membuat proses penerapan teknologi digital dan routing BGP membantu penanganan terhadap permasaalahn jaringan yang lebih mudah.
Investigating the influence of demographics and personality types on practitioners' level of systems thinking skills
Authors: Nagahi Morteza , Hossain Niamat Ullah Ibne , El Amrani Safae , Jaradat Raed , Khademibami Laya , Goerger Simon , Buchanan Randy
Published: March 2022

Although the application of systems thinking (ST) has become essential for practitioners when dealing with turbulent and complex environments, there are limited studies available in the current literature that investigate how the ST skills of practitioners vary with regard to demographic factors and personality types (PTs). To address this gap, this article uses a structural equation modeling approach to explore the relationship be-tween practitioners’ ST skills, PT, and a set of demographic factors. The demographic factors included in the study are education level, the field of the highest degree, organizational ownership structure, job experience, and current occupation type. A total of 99 engineering managers, 104 systems engineers (SEs), and 55 practitioners with other occupations participated in this article. Results showed that the education level, the field of the highest degree, PT, organizational ownership structure, and current job experience of practitioners influenced their level of ST skills. Additionally, the current occupation type of practitioners partially affects their level of ST skills. An in-depth analysis was also conducted using multiple group analysis to show how seven ST skills of the practitioners vary across their level of education. Taken together, the findings of the study suggest that PT and a set of demographic factors influence the overall ST skill of the practitioners.
Magnetic Ranging Method for Horizontal Section Spacing Control of Cluster Wells
Authors: Diao Binbin , Gao Deli , Zhang Sen , Zhang Wenkai , Liu Zhe , Liu Rui
Published: March 2022

Interwell fracture interactions are becoming an increasing problem with the large-scale exploitation of shale gas. High precision ranging technology is required for controlling the horizontal section spacing in cluster horizontal well drilling projects. The existing magnetic ranging technology has achieved remarkable application effects in the drilling engineering of twin horizontal wells, connected wells, and relief wells. But the maximum detection range cannot meet the needs of cluster horizontal well drilling engineering. A magnetic orientation sub connected to the nonmagnetic drill collar was designed to mark the position of the wellbore being drilled. Compared with the conventional magnetic sub connected to the drill bit, the magnetic orientation sub has a higher magnetic moment, is closer to the inclinometer, and has less effect on the build-up ability of the drilling tool. Although the effect of the magnetic orientation sub on the azimuth measurement is small when the azimuth angle is equal to 90° or 270°, the effect cannot be neglected in most cases. Therefore, we develop a computational model of the azimuth that considers the influence of the magnetic orientation sub. A new calculation model of distance and direction from the wellbore being drilled to the existing wellbore is developed to realize the ranging every 30 m or so. And the simulation experiment shows that the calculation accuracy of the distance and direction can meet the field needs of cluster horizontal well drilling engineering.
Inhibition mechanism of the chloride channel TMEM16A by the pore blocker 1PBC
Authors: Dutzler Raimund , Lam Andy , Rutz Sonja
Published: March 2022

TMEM16A, a calcium-activated chloride channel involved in multiple cellular processes, is a proposed target for diseases such as hypertension, asthma, and cystic fibrosis. Despite these therapeutic promises, its pharmacology remains poorly understood. Here, we present a cryo-EM structure of TMEM16A in complex with the channel blocker 1PBC and a detailed functional analysis of its inhibition mechanism. A pocket located external to the neck region of the hourglass-shaped pore is responsible for open-channel block by 1PBC and presumably also by its structural analogs. The binding of the blocker stabilizes an open-like conformation of the channel that involves a rearrangement of several pore helices. The expansion of the outer pore enhances blocker sensitivity and enables 1PBC to bind at a site within the transmembrane electric field. Our results define the mechanism of inhibition and gating and will facilitate the design of new, potent TMEM16A modulators.
Iatrogenic injury of the popliteal artery in orthopedic knee surgery - clinical results and development of a therapeutic algorithm
Authors: Goßlau Yvonne , Warm Tobias Dominik , Foerch Stefan , Zerwes Sebastian , Scheurig-Muenkler Christian , Hyhlik-Duerr Alexander
Published: March 2022

Purpose Intraoperative injury to the popliteal artery is a rare complication of orthopedic surgery, however, it can have serious consequences, including major amputation. Recommendations for a standard approach are lacking. The aim of this study was to develop an interdisciplinary therapeutic algorithm to assist in complication management. Methods From 01/11 to 12/20, 16 arterial injuries after knee surgery were analyzed in a retrospective single-center study. Four cases involved recurrent orthopedic surgery. Procedures performed included eleven total knee arthoplasties (TKA), two TKA replacements, one arthroscopy, and two high tibial osteotomies. Clinical presentation of patients was hemorrhage (n=2), ischemia (n=7), the combination of both (n=4), or pseudoaneurysm formation (n=3). Results Ten patients underwent endovascular treatment, some as combined procedures: (stent)-PTA (n=6), aspiration thrombectomy (n=5), thrombin injection (n=1), and embolization (n=1). Six patients were treated surgically: four with bypass/interposition and one with a patch plasty and one as a hybrid procedure, respectively. Only autologous great saphenous vein was used. All extremities could be preserved. Functional impairment remained in six cases. Conclusion Both endovascular and surgical procedures can be used to treat arterial injuries after knee surgery. Efficient standardized diagnosis and the involvement of vascular expertise are essential to prevent functional impairment or limb loss, as suggested in the algorithms.
Detection of Parvovirus B19 DNA in pregnant Sudanese women attending The Military hospital using Nested PCR technique
Authors: Abdelkabeer Tagwa Hafiz , Mohammed Nusaiba Elhadi , Khider Jala Suliman , Yassin Mustafa Eltigani , Idris Alkhair Abd Almahmoud
Published: March 2022

Background: Parvovirus B19 is a human pathogenic virus associated with a wide range of clinical conditions. During pregnancy congenital infection with parvovirus B19 can be associated with poor outcome, including miscarriage, fetal anemia and non-immune hydrops. Objective: The study aimed to determine the prevalenceof Parvovirus B19 DNA in pregnant women attending the Military hospital in Khartoum, demonstrating the association between the virus and poor pregnancy outcomes. Materials and methods: This study was a cross sectional study, testing pregnant Sudanese women whole blood samples (n= 97) for the presence of Parvovirus B19 DNA using nested PCR technique. Result: Two samples were found positive for Parvovirus B19 DNA out of the total number of samples screened. Conclusions: The prevalence of Parvovirus B19 DNA among pregnant women attending the Military hospital was 2.1%.
Soil algae for combating soil degradation - greenhouse experiment with different soil amendments
Authors: Zhang Xin , Koehler Hartmut
Published: March 2022

Our research contributes to the knowledge of using soil algae to combat soil degradation. We tested green algae (Klebsormidium flaccidum) and a field community in a three-month greenhouse experiment and studied their performance on two substrates: sand from the Ordos Desert and artificial desert soil (washed sand). Also a rapid fluorescence microscopy-Image J method was developed to assess the abundance of algae. We studied the effects of four soil amendments (biochar, clay, organic matter, geohumus®) on the development of green algae, field algae and biological soil crusts. K. flaccidum developed better than field communities, and field algae preferred washed sand. All amendments had a positive effect on the abundance of K. flaccidum and field algae. Biological soil crusts were generally lower in control and organic matter treatments, but relatively higher in biochar and clay treatments. No relationship between algal abundance and soil crust stability was found in this short-term experiment.
The Impact of Government Actions and Risk Perception on the Promotion of Self-Protective Behaviors During the COVID-19 Pandemic
Authors: Alvarez-Galvez Javier , Anastasiou Andreas , Lamnisos Demetris , Constantinou Marios , Nicolaou Christiana , Papacostas Savvas , Vasiliou Vasilis S. , McHugh Louise , Lubenko Jelena , Ruiz Francisco J. , Paez-Blarrina Marisa , Montesinos Francisco , Valdivia-Salas Sonsoles , Merwin Rhonda M. , Karekla Maria , Gloster Andrew T. , Kassianos Angelos P.
Published: March 2022

We aim to understand the factors that drive citizens of different countries adhere to recommended self-protective behaviors during the COVID-19 pandemic. Survey data obtained through the COVID Impact project was used. We combined previous evidence and change-point detection analysis to establish variations in self-protective behaviors across participating countries whose effect was then assessed by means of interrupted series analysis. A high level of compliance with health and governmental authorities’ recommendations were generally observed in all countries. The level of stress decreased near the period when countries such as Cyprus, Greece or the United Kingdom relaxed their prevention behavior recommendations. However, this relaxation of behaviors did not occur in countries such as Germany, Ireland or the United States. When the daily number of recorded COVID-19 cases decreased, people relaxed their protective behaviors (Cyprus, Greece, Ireland), although the opposite trend was observed in Switzerland. COVID-19 self-protective behavior following has been heterogeneous across countries examined. Our findings show that there is probably no single winning strategy for exiting future health crises, as similar interventions, aimed to promote self-protective behaviors, may be received differently depending on the singular population groups and on the specific geographical context in which they are implemented.
Determination of Total Phenolic Content and Antioxidant Activity of Commiphora mollis (Oliv.) Engl. Resin
Authors: Molole Guyo Jilo , Gure Abera , Abdissa Negera
Published: March 2022

In this study, total phenolic contents (TPC) and antioxidant activity of Commiphora mollis (Oliv.) Engl. (Burseraceae) resin was investigated. The resin was extracted using petroleum ether, chloroform, and methanol and yielded 27.46 ± 0.48, 46.56 ± 0.42, and 53.00 ± 1.39% extractable solids, respectively. The Folin-Ciocalteu redox (F-CR) assay was optimized considering relevant parameters such as reaction time, maximum wavelength, and dilution effect before the determination of TPC. The amount of antioxidant necessary to decrease by 50%, the initial concentration of DPPH (EC50) was determined at 60 min. The kinetics of the reaction was analyzed taking into account the pseudo-first-order model. For the F-CR assay, the optimum conditions for the maximum absorbance and analysis time were 760 nm and 30 min, respectively. Under these conditions, the method was valid and the instrumental response was linear and sensitive. Relatively, higher TPC was obtained in diluted samples (500 µg/mL): 168.27 ± 3.44, 137.43 ± 1.32, and 136.16 ± 0.42 mgGAE/g from methanol, chloroform, and petroleum ether extracts, respectively. By using different concentrations of the test sample, exhaustive reduction of phenolics and/or antioxidant substrates was achieved. The obtained DPPH radical scavenging capacity index (EC50) was 44.72 ±0.48 for ascorbic acid, and 295.03 ± 3.55, 342.75 ±9.72 and 353.69 ± 7.30 µg/mL for methanol, chloroform, and petroleum ether extracts, respectively. The methanol extracts showed better kinetic behavior (k2 values: 115.08 to 53.28 M-1s-1 and steady-state time < 30 min), which was closer to the standard L-ascorbic acid (k2 values; 190 to 109 M-1s-1), than other extracts. Results of the current study showed that polar solvent, methanol resulted in better F-CR reducing capacity and DPPH radical scavenging activity than nonpolar solvents which displayed similar effects (p > 0.05). This could have resulted from different antioxidants extracted from C. mollis resin. In conclusion, C. mollis resin could be a useful source of antioxidants. For better understanding, further study accompanied by isolation of pure compounds is recommended.
Cost-Effectiveness Analysis Of Pegfilgrastim In Patients With Non-Small Cell Lung Cancer Receiving Ramucirumab Plus Docetaxel In Japan
Authors: Kondo Yu , Tachi Tomoya , Sakakibara Takayoshi , Kato Jun , Kato Aki , Mizuno Takahito , Miyake Yoshio , Teramachi Hitomi
Published: March 2022

Purpose: The dose-limiting factor of ramucirumab plus docetaxel (RAM+DTX) therapy in patients with non-small cell lung cancer (NSCLC) is febrile neutropenia (FN), which has a higher incidence in Asians. Pegfilgrastim (Peg-G) is routinely used for FN prophylaxis in Japan. This study aimed to evaluate the cost-effectiveness of Peg-G in patients with NSCLC receiving RAM+DTX in Japan.Methods: We simulated model patients treated with RAM+DTX in Japan and developed a decision-analytical model for patients receiving Peg-G prophylaxis or no primary prophylaxis. The expected cost, quality-adjusted life-year (QALY), and incremental cost-effectiveness ratio (ICER) of each treatment were calculated from the perspective of a Japanese healthcare payer. The willingness-to-pay (WTP) threshold was set at 45,867 United States dollars (USD) (5 million Japanese yen) per QALY gained. The probabilities, utility values, and other costs were obtained from published sources. Deterministic sensitivity analysis (DSA) and probabilistic sensitivity analysis (PSA) were conducted to evaluate the effect of each parameter on the results and robustness of the base-case results.Results: The expected cost and QALYs gained were 4,394 USD and 0.603 for Peg-G prophylaxis, and 2,242 USD and 0.578 for no primary prophylaxis, respectively. The ICER was calculated to be 83,147 USD per QALY gained. The results of DSA were most sensitive to FN risk with Peg-G. PSA revealed a 23.7% probability that primary prophylaxis with Peg-G was cost-effective. Conclusion: Peg-G is not cost-effective in patients with NSCLC receiving RAM+DTX in Japan.
Chemotherapy, Immunotherapy, and Surgery Should be Optimal Treatment Choices of Metastatic Sarcomatoid Renal Cell Carcinoma
Authors: Chen Yongmei , Lu Dongming , Yin Zhenjie , Zhou Weiwen , Bai Yuanyuan , You Bingyong , Chen Daoxun , Liao Shangfan , Wu Zongqiang , Zhang Fabiao , Wang Ying , Lin Tingting , Sun Yingming , Wu Yongyang
Published: March 2022

Background: Sarcomatoid renal cell carcinoma (sRCC) is aggressive and with a poor prognosis. The therapeutic strategy of sRCC is unclear. We aim to evaluate the effectiveness of chemotherapy on sRCC and investigate the potential remedy to fight the sRCC. Methods: Patient information was derived from US Surveillance, Epidemiology, and End Results (SEER) database, and the demographic and clinical characteristics as variables were adopted. We apply log-rank to generate Kaplan–Meier survival curve. We established a nomogram by Cox proportional hazard model and apply the concordance index (C-index) and receiver-operating characteristic (ROC) to verify the quality of the model. Results: 809 patients were collected from SEER database. There are six independent prognostic factors, including age, sex, T stage, N stage, surgery, chemotherapy, that were employed to establish a prognostic model. The C-index of the model was 0.696. Tissue microarray (TMA) results suggested that programmed cell death ligand 1(PD-L1) was highly expressed in sRCC patients. Conclusions: Patients who have metastatic disease in sRCC can benefit from chemotherapy and surgery. Immunotherapy is promising to treat sRCC and should lunch a clinical trial at the current stage.