bluuebunny/crossref_metadata_2025 huggingface dataset:
Productivity, Profitability and Quality of Soybean [Glycine max (L.) Merrill] Influenced by Phosphorus and Sulphur Fertilization
Authors: . Manoj , Sharma M.K. , Meena Harphool , Yadav R.K. , Yadav V.K. , Ghasil Bahnu Pratap , Danga Sangeeta
Published: April 2023

Background: Soybean is an important legume as well as oil seed crop grown in a varied range of climate and soils. Phosphorous and sulphur is an important macronutrient required for plants. Their deficiency in soil is a worldwide concern for production of food crops. Therefore, present investigation was done to study influence of phosphorus and sulphur fertilization on productivity, profitability and quality of soybean. Methods: An experiment conducted during kharif 2021 and laid out in factorial randomized block design with three replications having four levels of phosphorous (0, 20, 40 and 60 kg ha-1) and three levels of sulphur (15, 30 and 45 kg ha-1). The data was recorded, analysed and computed statistically. Result: The results indicated that application of 60 kg P2O5 ha-1 and 45 kg S ha-1 gave significantly higher yield, monetary returns and quality of soybean over rest of phosphorous and sulphur levels. However, it was found at par with 40 kg P2O5 ha-1 and 30 kg S ha-1.
Universal values and democracy
Authors: Benamar Abdelhadi
Published: April 2023

The current polemic revolves around many concepts that are involved in the shaping and remodeling of the world and its priorities. They are overlapping each other and most of the time are found controversial, if not the diametrical opposite of what is supposed to be humankind's evolution towards the best. This paper aims to elucidate through scholars’ different analyses and points of view, a valid definition of this very term of democracy. Democracy under American values and globalization is an attempt to subdue obliquely the rest. These values are important issues raised by superpowers of politics, and most of the time, they are but arguments, cues by which they exercise their will upon the very discreet nation-states as they are evolving.
Keywords: Democracy; globalization; human; universal; values.
Opinions of Gifted Students on Augmented Reality Application in Social Studies Class
Authors: ÖZDEN ÇINAR Tuğçe , YAZICI Hakkı , KAYA Mehmet Tamer
Published: April 2023

This research aims to determine the opinions of gifted students about AR applications in Social Studies classes. Within the scope of the research, qualitative research was carried out on augmented reality applications with gifted students attending the Science and Art Center in the Aegean Region in the 2020-2021 academic year within the framework of the Social Studies class and worked with 29 students. In this research, the basic qualitative research method, and one of the qualitative research designs, was used, and the data required for the research were collected using the "Student Interview Form". Descriptive analysis was applied to qualitative data. In the findings obtained as a result of the research, it has been found out that the students wanted AR technology to be used by teachers and students, that they had a more enjoyable process in the classes that they used AR, that they thought that the information learned in this way was more permanent and that the use of AR in classes had results that would positively affect the learning process, such as making the class easier to understand and saving it from boringness. However, it was also pointed out that there is a process that includes negative aspects such as unattractive content, radiation, having to be used with the help of a device like a tablet/a phone, and being experienced internet connection problems while using AR. As a result, it has been predicted that using activities enriched by using AR in Social Studies classes will have positive effects on the learning process and the development of students. As a result, it has been predicted that the use of activities enriched by using AR in Social Studies classes will have positive effects on the learning process and the development of students, but a preventive approach will be preferred before and during the use of AR by the educators, and the efficiency of the education-teaching process will be increased.
„Bogiem ich jest brzuch”. Postulaty umiarkowania w jedzeniu w dietetyce pionierki adwentyzmu Ellen G. White
Authors: Wiktorowski Grzegorz
Published: April 2023

Artykuł ukazuje syntezę wiary religijnej oraz wiedzy naukowej - w XIX wiecznym standardzie - w modelu dietetyki, zaproponowanym przez współtwórczynię adwentyzmu Ellen G. White. Idea nieumiarkowania, posiadając zarówno konotacje religijne, jak i kulturowe, stanowi jeden z fundamentalnych jej elementów. Umiarkowanie dla autorki jawi się jako gwarancja zdrowia, fizycznego, psychicznego, mentalnego, emocjonalnego czy duchowego, a także moralnego. Obraz ten jest zupełnie rozbieżny z dietą współczesnego społeczeństwa amerykańskiego, która podlega bardziej wytycznym płynącym z konsumpcjonizmu i kapitalizmu, aniżeli z wiedzy medycznej czy zasad religijnych.
YEMENI UNDERGRADUATES’ TECHNOLOGY USE PREFERENCES IN COURSES
Authors: Thabit Tawfiq Abdulbagi Mohammad
Published: April 2023

This descriptive study aims at assessing how much technology Yemeni undergraduates prefer to use in their academic courses. Technology amount refers to the amount of information and communication technology used in academic courses of Yemeni universities. Technology amount is ranked as follows: no technology, limited technology, moderate technology, extensive technology, or exclusive technology. Data have been collected through a survey questionnaire offered to a random sample of 620 undergraduates at Taiz University and Al-Saeed University. Five hundred seventy students responded to the questionnaire. 355 (62.28%) and 215 (37.72) respondents belong to each university, respectively. The researcher anarmajore data using SPSS. The analyzed data revealed that only 12.98 percent of surveyed respondents preferred to take courses that do not use any technology while the majority of them (87.2 percent) preferred to take courses that use technology. However, techminded students had different degrees of preference for technology use in their courses. Also, the study found that there was no statistically significant difference among undergraduates on the basis of their demographics except for age, study status, and major. For example, students from engineering and business management showed more interest in the use of technology in their studies compared to other majors. The study has been carried out on two major Yemeni universities. More Yemeni universities should be targeted by future research. The paper dealt only with undergraduate student preferences for technology amount to use in their academic courses. Other aspects like technology skills, benefits, applications, training, and so on can be addressed by future research.
Environmental proteomics: a potential tool in wastewater-based epidemiology
Authors: Ginebreda Antoni , Barceló Damià , Picó Yolanda , Carrascal Montserrat , Abián Joaquin
Published: April 2023

Wastewater-based epidemiology (WBE) is a new complementary alternative to traditional epidemiological surveillance approaches for community health surveys. It provides objective, flexible, and comprehensive data on diseases, exposure to toxicants and pathogens, social habits, and lifestyle. Wastewater is regarded as an integrated pooled sample of the entire population served by a certain wastewater system, thus providing an average picture of its health status. WBE relies on the extraction, analysis, and subsequent interpretation of appropriate health status indicators, including both chemical and biological components, either exogenous or endogenous, altogether constituting the exposome. Instrumental development, especially mass spectrometry (MS) for the chemical analysis of small and large molecules, has been critical to the success achieved through WBE. Whereas all previous studies have been restricted to small molecules, the use of proteomics in WBE is an obvious extension of the intensive ongoing pursuit of biomarkers for community surveillance of diseases and health status. The relevance of human proteins present in wastewater as potential WBE indicators of population-prevalent diseases has been previously postulated, although no real examples to demonstrate their feasibility have been available until recently. These findings provide new insights into the characterization of wastewater proteomics useful for practical purposes related not only to WBE applications but also to environmental monitoring and wastewater treatment plant management.
NILAI EKONOMI MANFAAT LANGSUNG HUTAN MANGROVE PAGATAN BESAR KABUPATEN TANAH LAUT KALIMANTAN SELATAN
Authors: As’adi Muhammad , Soendjoto Mochamad Arief , Itta Daniel
Published: April 2023

Penelitian ini bertujuan untuk menganalisis seberapa besar manfaat langsung hutan mangrove di Desa Pagatan Besar Kabupaten Tanah Laut Kalimantan Selatan. Penelitian ini dilaksanakan pada bulan Mei sampai November 2021, penelitian ini menggunakan data primer dan data sekunder. Data primer dikumpulkan melalui pengambilan data dengan petak sampel dan wawancara dengan masyarakat. Pengambilan sampel menggunakan metode purposive sampling. Data sekunder dikumpulkan antara lain dari buku, jurnal, dan Kantor Desa Pagatan Besar. Data-data yang dikumpulkan dari lapangan dianalisis dengan menggunakan metode analisis deskriptif dan kuantitatif. Berdasarkan hasil yang diperoleh dari kawasan ekosistem hutan mangrove di Desa Pagatan Besar yang mempunyai luas ± 30 ha menemukan bahwa nilai manfaat langsung yang didapatkan oleh masyarakat terdiri atas nilai manfaat ikan, kepiting, katuyung, kayu komersil, pendidikan, penelitian, dan ekowisata. Nilai ekonomi manfaat langsung sebesar Rp1.174.238.329,00 per tahun yang terdiri dari nilai pemanfaatan ikan sebesar Rp6.375.000,00 per tahun, Katuyung sebesar Rp6.500.000,00 per tahun, dan Kepiting sebesar Rp171.600.000,00 per tahun. Nilai Manfaat kayu komersil sebesar Rp33.663.329,00 per tahun, nilai manfaat pendidikan sebesar Rp161.000.000,00 per tahun, penelitian sebesar Rp23.000.000,00 per tahun, dan Ekowisata sebesar Rp772.100.000,00 per tahun. Nilai ekonomi manfaat langsung ini dapat dijadikan acuan atau dasar pembanding bagi masyarakat dan pemerintah dalam menentukan kebijakan pengelolaan dan pemanfaatan hutan mangrove yang ada.
SPESIES TUMBUHAN INVASIF DI AREA REHABILITASI EKOSISTEM GAMBUT TAHURA ORANG KAYO HITAM PROVINSI JAMBI
Authors: Sipayung Yuni Anjelita Br , Novriyanti Novriyanti , Wulandari Christine , Iswandaru Dian
Published: April 2023

Ekosistem gambut yang kaya akan bahan organik sangat rapuh dan rentan terjadi kebakaran. Karakteristik ekosistem gambut yang unik memerlukan regenerasi dan permudaan alam yang dapat membantu memperbaiki pemulihan ekosistem gambut, terutama dari spesies yang berdampak negatif, misal spesies invasif. Penelitian ini bertujuan untuk menganalisis keberadaan spesies tumbuhan invasif di ekosistem gambut Taman Hutan Raya Orang Kayo Hitam (Tahura OKH) Provinsi Jambi. Penelitian dilakukan pada September 2021 di areal rehabilitasi PT PLN di dalam kawasan Tahura OKH seluas 195 Ha. Intensitas sampling yang digunakan yaitu 1 % dengan total 48 plot. Berdasarkan hasil analisis vegetasi, dari ke-14 spesies tumbuhan yang tercatat ada spesies yang tergolong invasif, yaitu alang-alang (Imperata cylindrica), senggani (Melastoma candidum), rumput Israel (Asystasia gangetica), bandotan (Ageratum conyzoides), dan rumput teki (Cyperus rotundus). Sisanya berpotensi menjadi invasif ditinjau dari frekuensi temuan dan dominansinya di dalam kawasan Tahura OKH.
EVALUASI KINERJA KOLAM PENGENDAP LUMPUR (KPL) BATUBARA DI STOCKPILE PT BUKIT ASAM Tbk UNIT PELABUHAN TARAHAN
Authors: Firdaus Firdaus , Suroso Erdi , Alimuddin Alimuddin , Bakri Samsul , Yuwono Suripto Dwi , Utomo Tanto Pratondo
Published: April 2023

Batubara merupakan salah satu sumberdaya alam yang dimanfaatkan sebagai sumber energi.  Salah satu perusahaan yang bergerak dalam pemanfaatan sumberdaya energi batubara adalah PT Bukit Asam Tbk. PT Bukit Asam Tbk Unit Pelabuhan Tarahan sebagai tempat bongkar muat batubara dilengkapi dengan tempat penyimpanan batubara sementara atau stockpile.  Kondisi dan fungsi drainase pada stockpile serta kinerja KPL pada setiap unit stockpile sangat berpengaruh terhadap keberlanjutan pengelolaan batubara.  Penelitian ini bertujuan mengevaluasi dimensi KPL yang digunakan untuk proses pengelolaan batubara dan menganalisis penyebab terbentuknya limbah cair batubara yang terjadi di stockpile. Penelitian ini dilakukan dengan studi literatur dan observasi lapang.  Berdasarkan penelitian yang telah dilakukan diperoleh hasil (1) TSS yang over kapasitas pada KPL 1,  (2) Endapan sedimen cukup banyak terlihat pada saluran drainase pada tiap stockpile, (3) KPL 1, 2, 3, dan 4 mengalami over kapasitas setiap terjadinya hujan  dan (4) Waktu pelepasan air ke laut yang lama dan pelepasan limpasan yang kurang besar.  Kondisi KPL tersebut disebabkan tingginya sedimen yang masuk ke KPL dan pada drainase, tidak adanya pembatas antara drainase dengan area stockpile, ukuran KPL dan drainase tidak mampu menampung beban debit dan terbentuknya limbah batubara pada drainase dan KPL disebabkan air limpasan yang membawa material batubara halus sehingga drainase stockpile tidak berfungsi secara maksimal. Berdasarkan hasil penelitian maka perlu adanya pengadaan pompa air, pembangunan pembatas stockpile, penambahan tinggi drainase, dan perbalikan KPL. Refungsi sistem drainase, bak kontrol, saluran penghubung distribusi limpasan dan yang secara teknis sangat penting dilakukan adalah penambahan pembatas stockpile untuk mengurangi limbah batubara masuk ke lingkungan dan mencegah banjir di lokasi stockpile.
PEMANFAATAN DAN PEMASARAN ROTAN DI DESA MANDUING TAHETA KECAMATAN PULAU MALAN KABUPATEN KATINGAN
Authors: Dewi Mei Kurnia , Mayawati S. , Nursiah Nursiah , Jumri Jumri , S Wahyu
Published: April 2023

Rotan memiliki potensi besar di Kabupaten Katingan tidak hanya dari segi kuantitas rotan namun juga dari segi keberagaman jenis rotannya. Waktu kewaktu petani rotan terus dihadapkan pada satu masalah yang sama yaitu saat harga rotan tinggi, penghasilan yang didapat cukup untuk memenuhi kebutuhan hidupnya, namun ketika harga rotan rendah, penghasilan yang didapatkan menjadi turun secara cepat. Tujuan penelitian 1.Menganalisis produksi rotan dan bentuk pemanfaatannya 2.Menganalisis tingkat pendapatan masyarakat dari pemanfaatan rotan dan bukan rotan 3.Menganalisis proses pemasaran dan efisiensi pemasaran rotan di desa Manduing Taheta Kabupaten Katingan. Metode yang digunakan yaitu mengetahui produksi dan bentuk pemanfaatan rotan, menghitung tingkat pendapatan dari hasil rotan dan pendapatan dari hasil usaha lain, menghitung pemasaran dan efisiensi pemasaran rotan. Hasil penelitian adalah total produksi rotan sebanyak 153 unit dalam bentuk  lanjung, tas, keranjang, vas bunga, tudung saji dan topi, pendapatan total masyarakat dari rotan sebesar Rp.50.353.644/tahun dengan rata-rata Rp.4.577.604/ responden/tahun dan bukan rotan sebesar Rp.117.720.000/tahun dengan rata-rata Rp.10.701.818.18/resonden/tahun, total pendapatan rotan dan bukan rotan sebesar Rp.168.073.644/tahun dengan rata-rata sebesar Rp15.279.422/responden /tahun, proses pemasaran produksi rotan dari produsen kepengengempul kekonsumen. Efisiensi pemasaran rotan tergolong efisien karena seluruh unit memiliki nilai efisiensi di bawah 30%.
PENGEMBANGAN LEMBAR KERJA PESERTA DIDIK (LKPD) BERBASIS ETNOMATEMATIKA UNTUK KEMAMPUAN LITERASI MATEMATIS MATERI SPLDV
Authors: Setiani Wulan , Fajriah Noor , Budiarti Indah
Published: April 2023

Rendahnya literasi matematis peserta didik tentang keterkaitan matematika dengan budaya serta kurangnya penerapan LKPD di sekolah merupakan hal yang mendasari alasan dikembangkannya LKPD untuk materi sistem persamaan linear dua variabel serta menghubungkannya dengan etnomatematika wadai khas Banjar dan kain Sasirangan. Tujuan dalam penelitian ini ialah agar dapat menghasilkan Lembar Kerja Peserta Didik (LKPD) berbasis etnomatematika sehingga mampu mendukung peserta didik dalam kemampuan literasi matematis kelas VIII SMP dalam materi sistem persamaan linear dua variable yang valid dan praktis. Metode penelitian yang digunakan ialah jenis penelitian pengembangan atau Research and Development (R&D) model 4D dengan dibatasi sampai tiga tahap, yaitu tahap pendefinisian (define), tahap perancangan (design), serta tahap pengembangan (develop). Kriteria kevalidan dan kepraktisan produk didapat berdasarkan uji dari dua orang validator ahli, juga diuji cobakan terhadap 30 peserta didik. Hasil uji validitas LKPD yang dikembangkan tersebut ada dalam kategori valid dengan skor 3,74. Hasil uji kepraktisan berdasarkan hasil respon peserta didik ada dalam kategori praktis mencapai skor 3,33.
Yeni Balkan Yayınevinin 2010-2022 Yılları Arasındaki Çalışmalarında Türk Kültürünün Aktarımı ve Türkçe Öğretimine [Kuzey Makedonya] Katkısı Üzerine Bir Değerlendirme
Authors: SARITUNÇ Berrin
Published: April 2023

Dil kuralların meydana getirdiği sistematik bir yapıdır. Dinlediğini, okuduğunu anlayabilmek ve yorumlayabilmek dilin doğru kullanımıyla alakalıdır. Bu da kişilerin dil bilincine sahip olmasıyla gerçekleşmektedir. Dil bilinci aynı zamanda toplumları bir arada tutan, en güçlü bağdır. Bu bağın sağlanmasında basın çok önemlidir. Bu bağlamda çalışmamızın konusu olan Balkanlar’da Türkçe dışında farklı diller de kullanılmakta, okullarda ve basın yayında yer bulmaktadır. Türkçe dışında kullanılan Arnavutça, Makedonca, Sırpça gibi dillerin de konuşuluyor olması elbette ki bir zenginlik olarak kabul edilse de kültürel aktarımın gerçekleşmesi, toplumsal birliktelik, aidiyet ve millet olma bilinci için Türkçe kullanımına özen gösterilmesi, basın yayın hayatında da geniş kullanım alanına sahip olması gerekmektedir. Bilindiği üzere basın yayın toplumları yönlendirmedeki en büyük güçlerden biridir. Balkanlar, pek çok farklı milletin bir arada yaşadığı bir bölge olması sebebiyle etnik çatışmaların da yaşandığı bir bölge olmuş basın yayın da bu çatışmaların şekillendirmesine maruz kalmıştır. Osmanlı Devleti zamanında önemli bir kültür merkezi konumunda olan Makedonya’da da basın yayın hayatı Yugoslavya’nın parçalanmasından sonra da aynı hareketliliğini korumuştur. Bu kapsamda bakıldığında bölgedeki yayınların Türkçe ülküsündeki kilit taşlardan biri olduğu görülmektedir. Yeni Balkan Yayınlarının Türkçenin öğretilmesi, kullanımına teşvik eden çalışmalar düzenlemesi, Türk kültüre ait motiflerin, kişilerin yer aldığı (maniler, ninniler, Nasrettin Hoca, Keloğlan, Mevlâna, Yunus Emre, Hacı Bektaşi Veli, Süleyman Çelebi, Ömer Seyfettin, Şemsettin Sami, Mehmet Akif Ersoy, Yahya Kemal Beyatlı, Aliya İzzetbegoviç) eserlerin basımına verdiği katkı ve destek ile balkanlarda önemli bir misyon yüklendiği görülmektedir. Bu sebeple çalışmamızın amacı, mezkûr yayınevinin 2010-2022 yılları arasındaki 100’ü aşkın eserinde Türkçe ve Türk kültürünün aktarımı açısından incelemektir. Çalışmamızda doküman analizi yöntemi kullanılmıştır.
The determinants of private savings in Turkey: The role of financial development
Authors: Akçay Selçuk
Published: April 2023

Purpose ― Over the past two decades since the 2000s, Turkey's private savings rates have decreased, which has become a concern for policymakers. In addition to considering the key determinants of private savings, this study primarily aims to quantify the linear and nonlinear impacts of financial development on private savings from 1980 to 2015.
Method ― This study uses Autoregressive Distributed Lag (ARDL) procedure and the Fourier Toda-Yamamoto causality framework.
Findings ― The main findings are as follows: 1) The ARDL bounds test supports the presence of a long-run equilibrium relationship between private savings and its determinants; 2) Financial development affects private savings nonlinearly in an inverted U-shaped pattern, and 3) No causality relationship is observed between private savings and financial development.
Implication ― As financial development has an inverted U-shaped relationship with private savings, indicating that the complementary effect of financial development is replaced with a substitution effect after a certain threshold level, Turkish authorities should consider this evidence when tailoring policies regarding financial markets.
Originality ― This study is the first to identify whether the relationship between private savings and financial development is linear or nonlinear in the context of an emerging economy in Turkey.
Empirical analysis of the impact of Turkish bilateral official development assistance on export
Authors: Hassan Arab Dahir , Esra Dil
Published: April 2023

Purpose ― The main objective of this study is to explore the relationship between bilateral official development assistance and the export of Turkey to 18 Turkish aid recipient countries between 1998 and 2019.
Methods ― The study employs the gravity model of international trade to capture the effect of official development assistance on Turkish export to its aid recipient countries and utilizes Panel data econometric analysis.
Findings ― The official development assistance (ODA) remains statistically significant across the models, indicating that ODA is one of the significant drivers of Turkish bilateral trade with the aid recipient countries.
Implications ― The study argues that Turkey applied ODA as a foreign policy tool to access new markets in the Middle East, Balkans, Africa, and Asia. Turkish exports to developing countries increased due to the upsurged country's foreign aid donation to its recipients.
Originality ― This study deviates from other studies in the literature by empirically examining the relationship between bilateral Official development assistance and the export of Turkey.
Automatic temperature detector to mitigate the spread of COVID-19
Authors: Ibnugraha Prajna Deshanta , Handayani Rini , NonAlinsavath Khamla
Published: April 2023

The COVID-19 causes wide impact in business operation. The enterprise must mitigate the risk of COVID-19 spread in its environment. The monitoring of body temperature for employees can be applied as a method to prevent COVID-19 spread. However, the monitoring system must consider several factors such as contactless system, accountable, and simple. The integration between IR temperature sensor and attendance system based on ESP32 is able to provide those need. The use of proximity, IR, and RFID sensor is affordable to detect body temperature properly within 10 cm. The proposed system provides notification if user gets fever or suspect of COVID-19 by detecting the body temperature. The accuracy of sensor is adequate. It is based on the comparison testing between proposed system with body thermometer where the testing is performed 30 times for each condition. In order to deduce the comparison result, this study uses analysis of variance method. The analysis produces F-critical (4,006) greater than F-value (0,022) where it means that the proposed system and body thermometer have similar testing result. It is shown good accuracy for the proposed system.
Classification of tea plantation using orthomosaics stitching maps from aerial images based on CNN
Authors: Wirabudi Andri Agustav , Fachrurrozi Nurwan Reza
Published: April 2023

In Indonesia, Tea is an important economic crop that is widely grown, and in many countries, accurate mapping of tea plantations is essential for the operation, management, and monitoring of the growth and development of the tea industry. We propose a classification of tea plantations using orthomosaics from aerial images based on the Convolutional Neural Network (CNN) which identifies the condition of the tea plantations with the parameters observed, namely the condition of the tea leaves, estimated yields achieved, and monitoring of treeless areas caused by tree death. In this study, we took a sample of 20 hectares. We classify images based on maps generated by drones in previous studies. Image segmentation is performed to maintain image objects, while an enhanced CNN model is used to extract deep image features. To get complete results, this study uses UAV (Unmanned Aerial Vehicle) imagery as the basis for the map, which is then combined or stacked into one image. The results of the images that are used as maps undergo image classification, where the information contained in the map is mapped and divided according to its type. The area of ​​the tea plantations sampled is 20 ha, and the threshold for the image captured by the UAV is 5% of the total area captured, which is around 1 ha. If the image created by the UAV has an error of more than 5%, then the image does not meet the classification requirements. We determine this margin of error based on the performance of the drone camera capture when capturing Fig. 2, and the resolution used is 4096 x 2160 for each image captured by the drone. We conclude that the proposed method for mapping tea plantations using ultra-high resolution remote sensing imagery is effective and has great potential for mapping tea plantations in areas such as the development of drone aerial photography methods for tea plantations based on image classification for forecasting. tea plantations Image stitching can be used to improve the monitoring of tea plantations and predict harvest time using a classification process. The tea garden map has 5 types of information categorized by harvest time, medium leaf tea, milled tea, tea, and old tea. The success of image recognition shows the error matrix data by testing 123 random points spread over the map, of which 113 random points were identified with an average accuracy of 91.87%, this value is of course very good and exceeds the specified threshold of 75%. When using this method, an error occurs that the colors of similar pixels cannot be distinguished, resulting in an incorrect detection. In addition, the image stitching method using the orthomosaics method has succeeded in performing image stitching and can be well applied to classification using the CNN approach.
Prediction of flood events in the city of Bandar Lampung using the artificial neural network
Authors: Nurpambudi Ramadhan , Wulandari Eka Suci Puspita , Aziz RZ. Abdul
Published: April 2023

The city of Bandar Lampung is currently experiencing seasonal flooding which occurs almost every year, resulting in significant losses. Floods recorded by BNPB in the last 10 years there were 16 incidents of flooding in the Bandar Lampung area. More than 14,000 people suffered, more than 500 people had to be evacuated, more than 900 houses were damaged, and 4 public facilities were damaged. To study the pattern of flood events in the past, the Artificial Neural Network Backpropagation learning method will be used which will utilize its non-linear variable learning abilities. The configuration settings for the Artificial Neural Network were carried out experimentally without any basis for assigning values, especially for the parameters of the number of hidden layers, number of neurons, and epochs used in training and variable testing. The results obtained from this study are the results of training and testing of datasets that have been carried out by ANN backpropagation are able to properly study patterns of flood events and also non-flood events in the dataset, this is evidenced by the results of high model configuration accuracy and also the results of predictive tables that able to describe actual conditions, setting the configuration model experimentally is able to produce an accuracy value of 90-100%, an average training correlation value of 0.96 and an average test correlation value of 0.89, and an average error value of 0.0089 out of 20 model configuration, and the flood prediction table are made based on the 1 best configuration with a training and testing accuracy rate of 100% with an error value of 0.00134, namely configuration model 20, the prediction table uses an average air temperature of 27˚C with 80% humidity. The prediction table is able to produce excellent flood potential results which are able to represent flood events as well as non-flood events based on the results of the dataset learning.
Identifying customer preferences on two competitive startupproducts: An analysis of sentiment expressions and textmining from Twitter data
Authors: Arifin Riski , Purnama Dwi Adi
Published: April 2023

Startups have great potential to grow and scale up their business quickly; moreover, they have an essential role in the growth of the country and the global economy. However, with the high risk of failure, startup success needs to be supported and concerned. The success of startups depends on market needs and expectations, which are currently highly uncertain, dynamic, and chaotic. Thus, it is necessary to identify and monitor customer preferences for startup products/services. This research identifies the customer preferences of two competitive food delivery startups that have been successful, namely Go Food and Grab Food. With increasing customer opinions on social media, Twitter data can be used to explore customer needs and preferences. However, social media data like Twitter tend to be unstructured, informal, and noisy, so data mining mechanisms are needed. Using sentiment analysis and text mining methods, this study explores and compares customer preferences for successful startup products, which has yet to be done in previous studies. The sentiment analysis results show the dominance of positive customer opinions and expressions of the products/services offered. Furthermore, customer product aspects reviewed positively and negatively by customers were analyzed more deeply using text mining to find the strength and weaknesses of these two businesses. The method and analysis of this paper help monitor customer opinions in real-time, both related to their satisfaction and complaints. Finally, the research results have been validated by comparing sentiment analysis classifications using machine learning and manual analysis by experts, which show an accuracy of 85% and 86% in Go Food and Grab Food reviews.
Front Matter
Authors: Zen Bita Parga
Published: April 2023

Front Matter February 2023
In the Dawn of an Early Invasion: No Genetic Diversity of Angiostrongylus cantonensis in Ecuador?
Authors: Solórzano-Álava Luis Fernando , Bedoya-Pilozo César Humberto , Hernández-Álvarez Hilda , Rojas-Rivero Lázara , Rodríguez-Ortega Misladys , Fraga-Nodarse Jorge , Pereira Leandro de Mattos , Simões Raquel de Oliveira , Vilela Roberto do Val
Published: April 2023

The nematode Angiostrongylus cantonensis has been reported worldwide, however, some basic questions remain unanswered about the presence of A. cantonensis in Ecua-dor: 1) Was the invasion of A. cantonensis in Ecuador unique, or did it occur in different waves? 2) Was this invasion as recent as historical records suggest? 3) Did this inva-sion come from other regions of South America or elsewhere? To address these issues, we assessed the genetic diversity of MT-CO1 gene sequences from isolates obtained in eleven of Ecuador's 24 provinces. Our Bayesian inference phylogenetic tree recovered A. cantonensis as a well-supported monophyletic group. All eleven sequences from Ec-uador were identical and identified as AC17a. The haplotype AC17a, found in Ecuador and the USA, formed a cluster with AC17b (USA); AC13 (Thailand); and AC12a-b (Cambodia). It is notable that all the samples, obtained in different geographic and climatic regions of different Ecuadorian provinces, had no genetic difference between them. Despite the lack of genetic information on A. cantonensis in Latin America, ex-cept in Brazil, our finding differs from previous studies by its absence of genetic diver-sity in Ecuador. We concluded that the invasion of A. cantonensis in Ecuador may have occurred: 1) as a one-time event, 2) recently, and 3) from Asia via the USA. Further re-search should include samples from countries neighboring Ecuador to delve deeper in-to this.
Efficiency Index for Binary Classifiers: Concept, Extension, and Application
Authors: Larner Andrew J
Published: April 2023

Many metrics exist for the evaluation of binary classifiers, all with their particular advantages and shortcomings. Recently an “Efficiency Index” for the evaluation of classifiers has been proposed, based on the consistency, or matching, and contradiction, or mismatching, of outcomes. This metric and its confidence intervals are easy to calculate from base data in a 2x2 contingency table, and values can be qualitatively and semi-quantitatively categorised. For medical tests, in which context the Efficiency Index was originally proposed, it facilitates communication of risk (of correct diagnosis versus misdiagnosis) to both clinicians and patients. Variants of the efficiency index (balanced, unbiased) which take into account disease prevalence and test cut-offs have also been described. The objectives of the current paper were firstly to extend the EI construct to other formulations (balanced level, quality) and secondly to explore the utility of EI and all four of its variants when applied to the dataset of a large prospective test accuracy study of a cognitive screening instrument. This showed that the balanced level, quality, and unbiased formulations of EI are more stringent measures.
Pengaruh Struktur Modal, Profitabilitas, Ukuran Perusahaan dan Likuiditas terhadap Nilai Perusahaan Infrastruktur yang Terdaftar di BEI Periode 2016–2020
Authors: Mercyana Clarissa , Hamidah  , Kurnianti Destria
Published: April 2023

Penelitian ini bertujuan untuk mengetahui pengaruh antara struktur modal, profitabilitas, ukuran perusahaan, dan likuiditas terhadap nilai perusahaan pada perusahaan infrastruktur yang terdaftar di Bursa Efek Indonesia (BEI) periode 2016-2020. Metode pengambilan sampel yang digunakan dalam penelitian ini yaitu purposive sampling yang diperoleh sebanyak 22 perusahaan. Data yang dipakai merupakan data sekunder, yaitu laporan keuangan perusahaan yangterdaftar pada Bursa Efek Indonesia (BEI) sektor infrastruktur Periode 2016-2020. Variabel bebas yang digunakan dalam penelitian ini yaitu struktur modal menggunakan debt to equity ratio (DER), profitabilitas yang digunakan dalam penelitian ini adalah return on assets (ROA), ukuran perusahaan diproksikan dengan nilai Ln dari total aset, dan likuiditas diproksikan menggunakan current ratio (CR). Sedangkan variabel terikat dalam penelitian ini yaitu nilai perusahaan yang menggunakan proksi Tobin’s Q. Metode pengambilan sampel yang digunakan dalam penelitian ini menggunakan teknik purposive sampling. Model yang digunakan dalam penelitian ini yaitu data panel dengan model 1 menggunakan random effect, dan model 3 menggunakan fixed effect. Metode hasil analisis data yang digunakan adalah analisis regresi data panel. Hasil penelitian ini menunjukan bahwa pada model 1 struktur modal berpengaruh negatif signifikan terhadap nilai perusahaan. Namun, hasil berbeda pada model 2 dan 3 menjadi negatif tidak signifikan. Profitabilitas berpengaruh negatif signifikan terhadap nilai perusahaan pada model 1 dan 2. Namun, hasil berbeda pada model 3 menjadi negatif tidak signifikan. Pada model 1 dan 2 ukuran perusahaan berpengaruh negatif tidak signifikan terhadap nilai perusahaan. Namun, hasil berbeda pada model 2 dan 3 menjadi negatif tidak signifikan. Likuiditas memiliki pengaruh positif tidak signifikan pada ketiga model.
Pengaruh CEO Female, CEO Tenure, Profitability dan Business Risk terhadap Capital Structure pada Perusahaan Manufaktur di Bursa Efek Indonesia Periode 2014-2019
Authors: Rifki Septiawan Muhammad , Nazir Ahmad Gatot , Kurnianti Destria
Published: April 2023

This study looks at how the influence of CEO Female, CEO Tenure, Profitability and Business Risk on the capital structure of manufacturing companies listed on the Indonesia Stock Exchange in 2014-2019. The dependent variable in this study is the capital structure. The independent variables in this research are CEO Female, CEO Tenure, Profitability, and Business Risk. The research sample is manufacturing companies listed on the Indonesia Stock Exchange in 2014-2019. The total sample is 768 samples from 128 companies. The analysis used is panel data analysis using the common effect model. The results of this study are female CEOs (CEO Female) do not have a significant influence on the company's capital structure, the tenure of a CEO (CEO Tenure) has a significant influence on the company's capital structure, the level of profitability does not have a significant effect on the company's capital structure. The level of business risk has no significant effect on the company's capital structure.

 

Penelitian ini melihat bagaimana pengaruh CEO Female, CEO Tenure, Profitability dan Businness Risk terhadap struktur modal perusahaan manufaktur yang terdaftar di Bursa Efek Indonesia tahun 2014-2019. Variabel terikat dalam penelitian ini adalah struktur modal. Variabel Bebas dalam penelitan ini ada CEO Female, CEO Tenure, Profitabilitas, dan Businness Risk. Sampel penelitian adalah perusahaan manufaktur yang terdaftar di Bursa Efek Indonesia tahun 2014-2019. Total sampel sebanyak 768 sample dari 128 perusahaan. Analisis yang digunakan adalah analisis data panel yang menggunakan common effect model. Hasil penelitian ini ialah CEO Perempuan (CEO Female) tidak memiliki pengaruh signifikan terhadap struktur modal perusahaan, Lama jabatan seorang CEO (CEO Tenure) memiliki pengaruh yang signifikan terhadap struktur modal perusahaan. Tingkat profitabilitas tidak memiliki pengaruh signifikan terhadap struktur modal perusahaan. Tingkat risiko bisnis tidak memiliki pengaruh signifikan terhadap struktur modal perusahaan.
Lexical and grammatical errors analysis on Indonesian-English translation of EFL students in Indonesia
Authors: Shiddiq Salma Mu'min , Oktaviani Lulud , Herwiana Sakhi , Suryanovika Citra
Published: April 2023

This current study aimed to find out lexical and grammatical errors in Indonesian to English translation texts made by Indonesian EFL learners in a private senior high school in Lampung. A qualitative case study design was adopted in this research. Documentation and literature review were used as the research instruments. To obtain the data, the researchers used 15 simple sentences and a short text in Indonesian. A total of 25 students participated as the sample in this research. The results suggested that there was a total of 402 errors made by the students and the students made more grammatical errors than lexical errors. Regardless of the discrepancy of students’ CEFR level, the most frequent errors found in students’ translation were omissions (24.13%), confusion of sense relations (18.16%), misformations (11.44%), and distortions (9.95%). After identifying the errors, the researcher also attempted to describe the possible sources of errors to fill the gap in previous studies. Based on the analysis, the possible factors influencing the errors were transfer of phonological system, transfer of lexico-semantic errors, transfer of morphological elements, transfer of grammatical elements, transfer of stylistic and cultural elements in interlingual errors and communication strategy-based errors and learning strategy-based errors in intralingual errors.
Vocabulary development of EFL young learner after long peer interaction with video games
Authors: Asari Slamet
Published: April 2023

The development of online games nowadays is not only for the purpose of entertaining but it can also be for English learning purpose since English language is commonly used as a language of instruction there in the games. Many researchers have developed online games on language use, one of which is English that focuses on vocabulary development and communicative language functions. This present study aims to find out or investigate the interactions and vocabularies learned by EFL learner while playing video games. The design of this research was a case study with a high school student. The data was taken from observation, videotaping peer interactions and depth interviews. The result indicated that he interacted not only with games but also with friends or teachers in English classrooms in gaining vocabulary (incidental vocabulary learning). The interaction occurred incidentally where they learned new vocabulary from interaction with video games and expressively used them in realistic situations. The data analysis relieved different words EFL Students learned from video games interaction as good as vocabulary gains. It included vocabulary support and learning patterns, spontaneous vocabulary interaction, and vocabulary improvement in video games interaction skill. As a result, this research found a potential theory that was implemented unconsciously in the observation of activities. This research can be used as a way for both teacher and student to optimize vocabulary development.
Caminhos percorridos para se chegar à docência em Geografia: uma narrativa (auto) biográfica
Authors: Brum Eduarda Caroline , Campos Josiane
Published: April 2023

Ter condições adequadas para o desenvolvimento das práticas pedagógicas é um dos pilares importantes para efetivação de um processo de ensino de qualidade, considerando as condições de trabalho impostas aos docentes, desde aos baixos saláriosaté à precarização do ensino. Pensar a realidade atual do professor necessita compreender e debater acerca dos caminhos que o levaram a escolha de sua profissão e quais foram as dificuldades encontradas. Nesse sentido, o presente artigo propõeapresentar o perfil docente brasileiro em que há professores assumindo disciplinas que não são sua formação acadêmica, principalmente no campo das Ciências Humanas, além disso, busca-se abordar contrapontos de visão entre o profissional docente noinício da carreira e no final dela. Para construção da pesquisa seguiu-se o método dialético diante de uma abordagem metodológica qualitativa pautada em narrativas autobiográficas. Os procedimentos metodológicos foram divididos em duas fases: a teórica, que contou com leituras e fichamentos acerca da temática abordada e a fase prática, a qual consistiu no convite e entrevista propriamente dita. A fim de obter melhor compreensão da realidade docente atual em escolas públicas e de sua precarização, as entrevistadas foram duas professoras: uma delas formada em geografia que leciona na área e outra formada em história que ministra aulas de geografia.Acredita-se que o método de pesquisa escolhido foi de grande valia, pois permitiu ouvir narrativas dos próprios professores, entender como ocorrem suas relações com o ambiente escolar e melhorar a compreensão acerca de diversos debates da área de pesquisa em ensino.
Integrated Petrophysical Evaluation Using Organic Shale Petrophysics OSP Approch Based on NMR, Elemental Specrtoscopy, Electrical Borehole Image and Core Data Analysis, of the Unconventional Reservoirs in Kra Al Maru Field, West Kuwait
Authors: Shehab El Dein Mahmoud Fawzy , Nguyen Kim , Dasma Mohamed , Mohamed Said Beshry , Quttainah Riyad
Published: April 2023

Najmah-Sargelu formations are unconventional reservoirs in West Kuwait in deep section of Kra Al Maru field. Various options were introduced to perform a petrophysical characterization of these unconventional reservoirs. Since a robust petrophysical model is critical for accurate reservoir characterization, a key objective of the current study was to obtain reliable well logging data that could support reservoir modeling and early wellsite decisions. Consequently, the logging program included conventional open hole logs, nuclear magnetic resonance (NMR), and elemental spectroscopy. The scope of the work is to assimilate data from the log sand generate a single integrated petrophysical model of the reservoir.

The organic shale petrophysics (OSP) was applied to provide petrophysical evaluation based on triple-combo data that has been integrated with advanced logs and core data analysis. The porosity partioning was obtained from NMR data. A detailed mineralogy and organic content were obtained from the geochemical spectroscopy logging. The most relevant results of the petrophysical analysis in this work was to improve fluid saturation analysis using OSP. Kerogen identified with the OSP analysis and the NMR under call porosity were in good agreement. The occurrence of kerogen was supported by the presence of redox sensitive elements, such as uranium, nickel, and molybdenum from core XRF data anlysis.

Borehole Image used to identify and characterize types and density of fractures, which contribute to enhance porosity and permeability of these tight reservoirs. A geochemical tool has been designed and developed for the precise determination of formation mineralogy, and lithology, as well as the identification of total organic carbon (TOC).

This work proves that the OSP analysis integrated with Core analysis, NMR data is a key in the petrophysical evaluation of unconventional reservoirs including the water saturation. These results, along with geochemical elemental spectroscopy and Electrical Borehole Image analysis, can be used to obtain a more precise petrophysical evaluation.
Enhanced Fluid Characterization for Improved Saturation & Connectivity
Authors: Mattar Tariq , Bingaith Abdulelah , Ghadiry Sherif , Ahmed Ramy
Published: April 2023

New methods used to accurately determine water and hydrocarbon saturation profile, hydrocarbon typing & reservoir extent (connectivity) in real time by using acquired insitu water salinity measurement downhole and measured hydrocarbon optical density from formation testers.

The uncertainties present from water salinity (Rw) values from nearby wells (due to vertical & aerial variations) may compute inaccurate hydrocarbon saturations when input in Archie's based fluid saturation model, which affects the hydrocarbon in place calculations. Also, relying only on pressure measurement for connectivity assessment & reservoir extent using Vertical Interference Testing (VIT) may sometimes be misleading & inconclusive due to supercharging in low permeability & low pressure contrast in high permeability which affects the field development plans. Therefore, the new methodology is introduced to overcome these challenges.

Firstly, the downhole water salinity is measured in a water zone at the bottom of the reservoir while pumping out using formation tester after achieving clean-out (negligible contamination). The values were input into the initial petrophysical model to recompute the new fluid saturation which was confirmed by pump-out fluid fractions from other zones.

Secondly, the optical density measurement from the spectroscopy was used to confirm the vertical connectivity though Reservoir Fluid Geodynamics & indicating a compositional gradient in real time in an oil column. This was done by constructing Flory-Huggins-Zuo (FHZ) Equation of State model and identifying asphaltene molecular size from optical density gradient.

These two methods will bring accurate & reliable results compared to conventional methods which has some uncertainties impacting evaluation & reservoir understanding. Secondly, will help in optimizing sampling & downhole fluid analysis programs which eventually saves cost & time & CO2 emissions. Thirdly, Optical Density gradient analysis can be also used for flow assurance prediction.