bluuebunny/crossref_metadata_2025 huggingface dataset:
CHURCH INTERIORS AND DIGITAL NARRATIVES: LATVIAN CHURCH HERITAGE IN THE DIGITAL AGE
Authors: Bitko Sanita
Published: February 2024

Today, digitalisation is widely discussed in the context of various institutions whoseoperational guidelines have made it a daily routine and a necessity for making informationaccessible to the public. The digitisation of museum collections is of particularimportance, both in terms of making them accessible to the public and for art historyresearch. However, many art objects are not only in museums, but also in churches,where, unlike the above-mentioned institutions, digitisation is not a priority and anecessity for them to continue to fulfil their tasks for the public. Considering that most ofthe sculptures created in Latvia before the middle of the 19th century are located inchurches, the paper focuses on the issues related to sacred interiors, digitisationpossibilities and their necessity. The paper analyses a number of problems and proposessolutions to the questions of what digitisation should be in order to give the maximumvalue, rather than digitisation for digitisation's. What are the benefits of a high quality,research-based digitisation of sacred interiors in the Latvian and European context. Theauthor highlights the necessity and importance of creating a digital database of sacredinteriors and masters, ensuring the circulation and accessibility of information not onlyfor art history research, but for society as a whole. The availability of information willcreate the possibility not only to see but to understand what you see and to appreciateuniqueness.
Investigation of damage in vascular endothelial cells caused by lipid bubbles under ultrasound irradiation to verify the protective effect on cells
Authors: Ogawa Narumi , Ito Yoshiki , Watanabe Shunya , Araki Shinnnosuke , Yoshida Naoya , Konishi Kota , Noguchi Ayako , Miyamoto Yoshitaka , Omata Daiki , Suzuki Ryo , Masuda Kohji
Published: February 2024

We investigated the viability of vascular endothelial cells engrafted on the basement membrane of a flow channel to verify the protective effect from cell damage under ultrasound exposure with a frequency of 3 MHz and a maximum sound pressure of 400 kPa-pp. We used two types of lipid bubbles (LBs), namely LBs (+) attached to the cells and LBs (–) not attached to the cells. We confirmed that the engrafted cells on the basement remained after ultrasound exposure and were resistant to flow. We found significant cell damage using LBs (–) regardless of the flow condition, whereas cell damage was not observed with LBs (+). A difference in irradiation direction of ultrasound was not detected. By making use of the adhesion of LBs (+) on the cells, since there was a significant increase in cell survival rate, we prove the potential for the adhesion of LBs (+) to protect cells from cell damage.
EFEKTIVITAS PROGRAM BANTUAN OPERASIONAL SEKOLAH
Authors: Nurjannah Nurjannah B. , Remmang Hasanuddin , Suriani Seri
Published: February 2024

Penelitian bertujuan untuk mengetahui seberapa baik fungsi Bantuan Operasiional Sekolah (BOS) di MTs. Syawir Dahlan Kecamatan Pangkajene, Kabupaten Pangkajene dan Kepulauan dan untuk mengetahu bagaimana Program Bantuan Operasional Sekolah (BOS) mengubah mutu layanan pendidikan dasar MTS. Syawir Dahlan Kabupaten Pangkajene dan Kepulauan. Dana BOS merupakan program pemerintah yang pada dasarnya untuk menyediakan pembiayaan biaya operasional non personalia bagi satuan pendidikan dasar sebagai pelaksana program wajib belajar. Peneliti menggunakan seri fakta untuk mendapatkan catatan penting dari aset yang memakan waktu lama. Tes ini menggunakan pendekatan wawancara untuk mengumpulkan informasi dan catatan dari sumber yang tersedia dan online. Berdasarkan hasil penelitian yang dilakukan, penggunaan Bantuan Operasional Sekolah (BOS) di MTS Syawir Dahlan sudah efektif sesuai dengan indikator pelaksanaannya.
This study aimed to determine  how well the School Operational Assistance (BOS) function in MTs. Syawir Dahlan Pangkajene ub-district, Pangkajene and Island District and to find out how the School Operational Assistance Program (BOS) is changing the quality of MTS of basic education service. MTs. Syawir Dahlan Pangkajene and Island District. The BOS support fund is a government program tha.t basically provides financing for non-personal operational costs for basic education units as implementers of the compulsory education program. Researcher uses fact series to obtain important records of assets that take a long time. This test used an interview approach to collect information and notes from available and online source. Based on the result of research conducted, the use of School Operational Assistance (BOS) at MTs. Syawir Dahlan has been effective according to its implementation indicator.
Design and Development of an IoT-Enabled Smart Photovoltaic Inverter With MPPT
Authors: Hanif Muhammad Nouman , Ahmed Haseeb , Afnan Muhammad , Saleem Syed Muhammad Atif
Published: February 2024

We are designing and implementing a solar inverter system that generates green power from solar energy and reduces air pollution and other environmental impacts. Our system uses a pure sine wave inverter that produces a sine wave virtually identical to the utility grid. The IoT-based MPPT solar charge controller ensures that the maximum amount of power is transferred from the solar panels to the battery bank and monitors the system in real-time. We also use a solar tracker with a single-axis rotation that orients the panels toward the sun in two directions. Our solar inverter system can handle a maximum load of 300 watts.
El cómic latinoamericano en escena
Authors: Hinojosa Lobos Hugo , Jeria Paloma Domínguez , Sánchez Sánchez Jorge
Published: February 2024

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Two Types of Sugar Cane (Saccharum officinarum) Murity Varieties Productivity in Different Planting Patterns
Authors: Gahara Mawandha Hangger , Wahyu Andias Nino
Published: February 2024

The two varieties, Bululawang and Cenning, exhibit different maturity types. The sugarcane production cycle involves the cultivation of Plant Cane (PC), Ratoon Cane (RC) I, and Ratoon Cane (RC) II cropping patterns, followed by replanting. The objective of this study is to assess the productivity of Bululawang and Cenning varieties when planted as plant cane and ratoon cane. QA conducted the study On Farm PG. Pesantren Baru, located in Plosokidul, Plosoklaten, Djengkol, Ploso Kidul, Kec. Plosoklaten, Kediri, East Java. It took place from July to September 2021. The study compared the two varieties under different cropping patterns. The differences in variables between treatments were analyzed using a T-test at a significance level of 5%. The observations and sample collection were conducted at specific distances from the field's edge, including line 4 (4m), line 5 (12m), line 282 (8m), line 560 (4m), and line 561 (12m). When planted as plant and ratoon cane, the T-test analysis revealed significant differences in stem weight and productivity parameters between Bululawang and Cenning varieties.
Morbidade hospitalar por fratura de fêmur em idosos no Brasil: uma análise descritiva
Authors: Moura Rodrigues Paulo Victor , Scolari Fruhauf Debora Luisa , Oliveira da Silva Diego Alexsandre , Souza Costa Luiza , Da Cruz Barbosa Nazzaro André , Souza Afonso da Silva Igor , da Silva Campos Jessica , Almeida de Carvalho Norana Cristina , De Souza Danilo Alexandre , Oliveira dos Santos Juliana
Published: February 2024

O número de idosos está aumentando globalmente, com projeções indicando cerca de 2 bilhões em 2050. No Brasil, em 2022, havia 22.169.101 pessoas com 65 anos ou mais, um aumento de 57,4% desde 2010. Quedas são comuns entre os idosos, com aproximadamente um terço dos maiores de 65 anos propensos a cair. As quedas podem levar a fraturas de fêmur, representando um desafio significativo para a saúde dos idosos, com altas taxas de morbidade e impacto na qualidade de vida. Nesse sentido, o objetivo deste estudo é analisar e descrever as taxas de morbidade hospitalar por fratura de fêmur em idosos no Brasil. Trata-se de um estudo epidemiológico retrospectivo, que analisou dados do SIH/SUS do Ministério da Saúde sobre internações por fratura de fêmur de pessoas com mais de 60 anos no Brasil, entre novembro de 2022 e novembro de 2023. Os dados foram analisados por região, idade, sexo, cor/raça e tempo de internação, utilizando o Microsoft Excel 2019 para cálculos, tabelas e gráficos. Neste estudo, delineou-se um perfil da morbidade em idosos afetados por fraturas de fêmur, revelando que a incidência de intervenções foi mais pronunciada em mulheres de cor parda, com mais de 70 anos, residentes na região sudeste.
Efeito da testosterona na hemostasia em portadores da deficiência androgênica do envelhecimento masculino
Authors: Santos Rita de Kássia Costa dos , Medeiros Ana Beatriz Monteiro de , Diniz Laíza Andrade Soares , Carvalho Victor Veras de Alencar , Balduino Fábio Farias , Cirqueira Maria Augusta Silva , De Castro Benedito Leandro Francês , Ribeiro Jardel Pereira , Almeida Ricardo Marques de , Santos Mateus De Lima , Belchior Aucelia Cristina Soares de , Almeida Maria Margareth Câmara de
Published: February 2024

Com o envelhecimento os níveis de andrógenos decaem de forma gradual, no homem adulto o decaimento nos níveis de testosterona associado a sinais e sintomas apresenta-se como a deficiência androgênica do envelhecimento masculino (DAEM), alguns desses sinais e sintomas são: queda da libido, depressão, disfunção erétil, anemia, diminuição da densidade óssea e massa muscular. A testosterona é um hormônio pertencente à classe dos andrógenos, sua função está relacionada com a manutenção dos órgãos sexuais, possuindo efeito também sobre órgãos não reprodutivos como o fígado, induzindo a síntese das lipases hepáticas e fatores da coagulação. A testosterona também está associada ao aumento da atividade do sistema fibrinolítico e antitrombina III, constituintes do mecanismo hemostático fisiológico contra perda de sangue, bem como sua fluidez. Tendo em vista a importância da testosterona, a sua reposição tem sido amplamente prescrita para homens sem diagnostico de hipogonodismo, visto que adultos após os 60 anos apresentam níveis de testosterona abaixo dos limites inferiores para adultos. Diante do exposto, o objetivo desse estudo é realizar uma revisão bibliográfica sobre os benefícios do tratamento com a reposição de testosterona na hemostasia em homens com deficiência androgênica do envelhecimento masculino. Este trabalho trata-se de uma revisão de literatura, descritiva com abordagem qualitativa, a população em estudo será constituída por artigos em português, inglês e espanhol, obtidos nas bases de dados do Scielo, Google Acadêmico e PubMed. Para a amostragem, foram selecionados 53 artigos, dos quais 33 se enquadraram nos critérios de inclusão. Nesse contexto a terapia com reposição de testosterona possui ação endotelial protetora, aumentando a atividade do sistema fibrinolítico e atividade de antitrombina, responsáveis pela dissolução e neutralização do coágulo.
CONTENT TECHNIQUES OF INFOTAINMENT IN THE WORK OF REGIONAL PRINT MEDIA
Authors: Карпенко И.И.
Published: February 2024

Статья посвящена проблеме исследования невербальных содержательных приемов инфотейнмента в практике периодических печатных изданий. Новизна исследования обусловлена необходимостью систематизации приемов инфотейнмента, применяемых в работе печатных средств массовой информации, по причине недостаточности теоретического исследования данного феномена. Эмпирической базой исследования послужил корпус журналистских материалов белгородского регионального молодежного журнала «ОнОнас» за период с 2013 по 2021 гг., отобранный методом сплошной выборки. Актуальность работы состоит в необходимости теоретического осмысления практики издания и классификации невербальных содержательных приемов инфотейнмента. К методам, использованным в ходе исследования, относится системный анализ с акцентом на конструктивном и структурно-функциональном подходе, применяется также метод типологизации и контент-анализ. В работе сформулированы выводы о том, что в группу невербальных содержательных приемов инфотейнмента входят: критерий отбора тем, особенности подбора героев для журналистского материала, способ трактовки предмета отображения, создание эффекта парадоксальности, выступление журналиста в роли актора. Использование подобных приемов позволяет повысить содержательную привлекательность журналистского материала, нетривиально представить известные темы, внести элементы развлекательности в журналистский текст и др.
ОРГАНИЗАТОРСКАЯ РОЛЬ А.А. КАДЫРОВА В ВОССТАНОВЛЕНИИ ОБЩЕГО И ПРОФЕССИОНАЛЬНОГО ОБРАЗОВАНИЯ В ЧЕЧЕНСКОЙ РЕСПУБЛИКЕ
Authors: Якубов А.В.
Published: February 2024

В статье автор описывает факты и события, связанные с Главой Администрации Чеченской Республики, а позже и Президентом ЧР Кадыровым А.А., свидетелем и очевидцев которых ему довелось быть.
Приводятся конкретные примеры и делается попытка оценить действия Кадырова А.А. в тот сложный период, когда он оказался у власти.
Demazure Product of Permutations and Hopping
Authors: Li Tina , Oh Suho , Richmond Edward , Yan Grace , You Kimberly
Published: February 2024

The Demazure product (also called the 0-Hecke product or greedy product) is an associative operation on Coxeter groups with interesting properties and important applications. In this paper, we study permutation groups and present a way to compute the Demazure product of two permutations using only their one-line notation and not relying on reduced words. The algorithm starts from their usual product and then applies a new operator, which we call the hopping operator. We also give an analogous result for the group of signed permutations.
Usefulness of the Biomass of Tobacco (Nicotiana tabacum) for The Elimination of Chromium (VI) from Polluted Waters
Authors: Herta Velazquez Cintia Carolina , Cruz Garcia Katya Berenice , Acosta Rodríguez Ismael
Published: February 2024

The tobacco plant is capable of accumulating heavy metals in its different parts, making it a good candidate for use in bioremediation, although there are few reports in which the biomass of this plant is used for the removal of heavy metals in solution. Also, cigarette residues are an environmental problem, so the use of these residues is an opportunity to obtain biomass for the removal of heavy metals from polluted environments. The objective of this work was to determine the removal capacity of Cr (VI) by commercial tobacco biomass, finding that 1 g of biomass removal 72 mg/L of the metal at 24 h, pH 2.0, 28 °C and 100 rpm, while at higher temperatures the removal is higher, and if the concentration of the metal is increased (1 g/L), its removal capacity is reduced, since 64.72% is removed at 24 h at 28 °C, although at 60 °C, 1 g/L is removal at 8 hours. If the concentration of the bioadsorbent is increased, the metal removal does not increase. Finally, 5 g of biomass eliminates 66.1% and 74% of Cr (VI) present in naturally contaminated soil (100 mg/g) and water (100 mg/L), respectively.
Pengaruh Budaya Organisasi Terhadap Kinerja Pegawai di Kantor Kecamatan Solokan Jeruk
Authors: Rosdiana Yana , Suryanto Suryanto , Alhadihaq Muhammad Yusuf
Published: February 2024

Local government is a government that has its own autonomy. The autonomous government has the authority to regulate and manage the needs of its region. The foundation of authority that forms the basis of regional autonomy is based on law number 6 of 2014 concerning Regional or Village Government. Regional or village government policies aim to provide rights services to the community in a more managed manner. Employee performance is one manifestation of the existence of local government which is considered good or bad according to the response of society in general. The achievement of a good employee performance is influenced by internal forms in a government, one of which is organizational culture in government. Therefore, organizational culture in government will affect the performance of employees or apparatus provided to meet the needs of society. The research design was carried out by using quantitative research methods based on survey results presented in statistical form. The research subjects consisted of 40 respondents with organizational culture variables and employee performance variables in the Solokan Jeruk District office. The results of the data obtained indicate that organizational culture has a significant influence on employee performance.
Efektivitas Pemilihan Raja Di Negeri Haruru Kecamatan Amahai Kabupaten Maluku Tengah
Authors: Sapulette Rezita. A. N. , Rengifurwarin Z. A. , Rahanra Ivony
Published: February 2024

This research is descriptive qualitative type. Aims to analyze and explain the description of the Effectiveness of the Election of the King and the factors that influence it in Negeri Haruru, Amahai District, Central Maluku Regency. Informants of this study amounted to 8 people. The data needed in this study were collected through observation, interviews and documentation techniques. Data was successfully collected, processed and analyzed with the help of descriptive qualitative analysis techniques. The results of this study indicate that the level of effectiveness in the election of the King in Haruru Country is not good enough and not optimal as a whole. This is influenced by unfavorable factors such as: a) Differences in perceptions in society, b) guidance, mediation and facilitation by local governments, c) community compliance with customary values and rules. The implication of this research, if you want to optimally increase the level of effectiveness of the election of the king in Haruru country as expected, it is necessary to optimize the implementation of the factors that influence the process of selecting the king in question, properly and adequately as expected.
The Implementasi Program Dana Alokasi Khusus Bidang Sanitasi (DAK Sanitasi) di Desa Randuputih, Kecamatan Dringu, Kabupaten Probolinggo
Authors: Sucahyo Imam , Puspitarini Renny Candradewi , Wahyuni Vira Nur
Published: February 2024

Implementasi program Dana Alokasi Khusus Bidang Sanitasi (DAK Sanitasi) merupakan bentuk dari kebijakan sosial. Program Dana Alokasi Khusus Bidang Sanitasi (DAK Sanitasi) merupakan salah satu upaya pemerintah pusat dalam memberikan dukungan dan alokasi dana secara khusus kepada pemerintah daerah untuk mempercepat penyediaan pembangunan infrastruktur sanitasi. Salah satu bentuk dari program DAK Sanitasi yaitu pembangunan kamar mandi, jamban sehat, dan tangki septic individual. Pembangunan sanitasi ini mengikuti standar pelayanan minimal yang ditentukan oleh peerintah. Penelitian ini bertujuan untuk menggambarkan implementasi program DAK Sanitasi di Desa Randuputih. Desa Randuputih menjadi salah satu wilayah di Kecamatan Dringu yang memiliki tantangan khusus dalam hal sanitasi seperti masih adanya kasus buang air besar sembarangan diruang terbuka, fasilitas sanitasi yang kurang memadai, serta rendahnya tingkat kesadaran masyarakat akan pentingnya praktik sanitasi yang baik. Jenis penelitian yang digunakan yaitu deskriptif kualitatif, dengan pengumpulan data melalui wawancara dengan pemangku kepentingan untuk memperoleh informasi lebih mendalam memgenai implementasi program DAK Sanitasi. Hasil penelitian menunjukkan bahwa implementasi program DAK Sanitasi di Desa Randuputih berjalan dengan baik dan bemberikan dampak positif. Dana yang dialokasikan digunakan untuk membangun kamar mandi dan jamban sehat. Selain itu progam ini melibatkan penyuluhan kepada msyarakat untuk meningkatkan kesadaran dan pengetahuan tentang sanitasi yang baik. Namun masih ada beberapa tantangan yang dihadapi dalam implementasi program ini, seperti masih ada penolakan dari masyarakat. Penelitian ini merekomendasikan perlu Upaya yang berkelanjutan dalam pengembangan dan pemeliharaan infrastruktur sanitasi. Diperlukan koordinasi yang baik antara pemerintah desa, masyarakat dan pihak terkait untuk memastikan infrastruktur yang dibangun dapat berfungsi dengan baik dan tetap terjaga keberlanjutanya. Selain itu sinergi antara pemerintah, masyarakat dan pihat terkait perlu ditingkatkan guna mencapai tujuan desa ODF di Desa Randuputih.
Pengaruh Harga, Cita Rasa, Dan Kemasan Terhadap Kepuasan Konsumen Pada Canteen Anugerah School Sidoarjo
Authors: Murdjono Yenny Hadi , Aribowo Handy , Jondar Aloysius
Published: February 2024

This study aims to examine the effect of price, taste, and packaging both individually and simultaneously on customer satisfaction at Canteen Anugerah School Sidoarjo. The population taken is consumers of Canteen Anugerah School Sidoarjo aged 10 to 70 years who made purchases in the last 2 months. 76 respondents filled out the questionnaire and met the requirements. The variables in this study are price, taste, packaging, and customer satisfaction of Canteen Anugerah School Sidoarjo, with indicators, namely price affordability, price compatibility with product quality, price competitiveness, price compatibility with benefits, smell, taste, oral stimulation, packaging quality, packaging innovation, conformity to expectations, interest in visiting again, and willingness to recommend. Data collection methods using questionnaires. The data analysis used is Multiple Linear Regression Test. The results showed that the price variable (X1) was found to have a t value of 1.569 < 1.992 (t-table) and a sig. of 0.121> 0.05. From these results, it can be interpreted that price has no influence on customer satisfaction at Canteen Anugerah School Sidoarjo. The Taste variable (X2) is known to have a t value of 4.851> 1.992 (t-table) and sig. of 0.000 < 0.05 and the Packaging variable (X3) is known to have a t value of 5.195> 1.992 (t-table) and sig. of 0.000 < 0.05. From these results, it can be interpreted that Taste and Packaging have an influence on customer satisfaction at Canteen Anugerah School Sidoarjo.
3 Efektivitas Dalam Pengawasan Asrama Sma Negeri Keberbakatan Olahraga Provinsi Bengkulu
Authors: Ayu Puja Putri , Lorita Evi , Handayani Tuti , Sariningsih Marida
Published: February 2024

This research aims to describe the Effectiveness in Supervision of SMANKO Dormitory in Bengkulu Province. The approach in this research uses a descriptive qualitative approach. Data collection techniques were conducted by interview and documentation. Data analysis techniques used include data reduction, data presentation (data display) and conclusion drawing/verification. The results showed that, from the results of interviews and discussions about "Effectiveness in the Supervision of SMANKO Dormitory in Bengkulu Province" it can be concluded that the effectiveness in the supervision of SMANKO dormitory has been running quite well, which is seen based on the indicators of the theory of six effective leadership traits according to Edwin Ghiselli in Usman Effendi (2014: 186) namely, supervisory ability, technical knowledge, decisiveness, self-confidence and initiative. Of the six indicators, there are two indicators that still need to be improved, namely, supervisory ability, there is still a lack of supervision of the dormitory caregivers on the afternoon and night shifts because it is far from supervising the dormitory coordinator's working hours so that it is vulnerable to caregivers who are not there at that time and technical knowledge (intelligence) still lacks a match for the educational background of some dormitory caregivers.
The Inner Disk Rim of HD 163296: Linking Radiative Hydrostatic Models with Infrared Interferometry
Authors: Chrenko Ondřej , Flock Mario , Ueda Takahiro , Mérand Antoine , Benisty Myriam , Chametla Raúl O.
Published: February 2024

Previous studies of the protoplanetary disk HD 163296 revealed that the morphology of its sub-au infrared emission encompasses the terminal sublimation front of dust grains, referred to as the inner rim, but also extends into the (supposedly) dust-free region within it. Here, we present a set of radiative hydrostatic simulations of the inner rim in order to assess how much the rim alone can contribute to the observed interferometric visibilities V, half-light radii R
hl, and fractional disk fluxes

F

in the wavelength range 1.5–13 μm. In our set of models, we regulate the cooling efficiency of the disk via the boundary condition for radiation diffusion and we also modify the shape of the sublimation front. We find that when the cooling efficiency is reduced, the infrared photosphere at the rim becomes hotter, leading to an increase in R
hl sufficient to match the observations. However, the near-infrared disk flux is typically too low (

F
≃
0.25

at 1.5 μm), resulting in H-band visibility curves located above the observed data. We show that the match to the H-band observations up to moderate baselines can be improved when a wall-shaped rather than curved sublimation front is considered. Nevertheless, our model visibilities always exhibit a bounce at long baselines, which is not observed, confirming the need for additional emission interior to the rim. In summary, our study illustrates how the temperature structure and geometry of the inner rim need to change in order to boost the rim’s infrared emission.
Can the Gravitational Wave Background Feel Wiggles in Spacetime?
Authors: Ye Gen , Silvestri Alessandra
Published: February 2024

Recently the international pulsar timing array collaboration has announced the first strong evidence for an isotropic gravitational-wave background (GWB). We propose that rapid small oscillations (wiggles) in the Hubble parameter would trigger a resonance with the propagating gravitational waves, leaving unique signatures in the GWB spectrum as sharp resonance peaks/troughs. The proposed signal can appear at all frequency ranges and is common to GWBs with arbitrary origin. The resonant signal can appear as a trough only when the GWB is primordial, and its amplitude will also be larger by one perturbation order than in the nonprimordial case. These properties serve as a smoking gun for the primordial origin of the observed GWB. We showcased the viability of the signal to near future observations using the recent NANOGrav 15 yr data.
Theoretical and numerical investigation of a modified ABC fractional operator for the spread of polio under the effect of vaccination
Authors: ur Rahman Mati , Yavuz Mehmet , Arfan Muhammad , Sami Adnan
Published: February 2024

The current manuscript investigates a model of the spread of polio under the condition of vaccination by using the novel modified Atangana-Baleanu-Caputo (mABC) fractional derivative. This problem has been studied for non-zero solutions under the modified operator. The series-type solution has been obtained through the application of a Laplace transformation, along with the decomposition technique and Adomian polynomial for the nonlinear terms. The qualitative analysis for the solution of the model has been tested by using fixed point theory. The stability of the solution is also crucial for a dynamical system; therefore, it was checked by using the T-Picard method. With the help of the approximate scheme, numerical simulations were conducted for the proposed model by using different fractional orders and transmission parameters. Based on the obtained positivity of the solutions and numerical stability, we have established the analysis of the mABC operator in the field of fractional calculus and other physical sciences.
Cultivating Resilience Among Latinx Educational Leaders
Authors: Kew Kristin , Padilla Karina Ivette
Published: February 2024

This chapter discusses the importance of building resistant capital for Latinx and other marginalized leaders in the field of higher education. The authors provide some background information on what oppression means and looks like in the field as well as provide some strategies and techniques for building resilience to thrive amidst these challenges. The need to focus on community and cultural wealth among colleagues and networks is discussed alongside ideas. Resilience and well-being are central themes in this book chapter.
Effectiveness of GRAS substances for managing leaf diseases in brinjal (Solanum melongena L)
Authors: Thibisha R. , Prasannath K.
Published: February 2024

Leaf diseases in brinjal (Solanum melongena L.) are common and drastically lower its yield. As synthetic fungicides are hazardous to the environment and human health, non-fungicidal approaches to foliar disease control are being adopted progressively. The current investigation assessed the effectiveness of Generally Recognized as Safe (GRAS) substances in the management of leaf diseases in brinjal. The efficacy of the selected GRAS substances, including 400 μM of salicylic acid, 0.1% of sodium bicarbonate, and botanical extracts such as 200 ppm of garlic clove extract, 200 ppm of neem extract and 200 ppm of eucalyptus extract, were assessed. Six treatments and four replicates were employed in a completely randomized design for this present study. The natural occurrence of leaf diseases was taken into account in the experiment. Disease incidence (%), disease severity (%), number of leaves per plant, plant height (cm) and number of branches per plant were recorded seven weeks after transplanting. Analysis of variance was used to assess the significance of treatment effects. The findings confirmed that the exogenous spraying of salicylic acid and garlic clove extract significantly (P<0.05) decreased the disease severity and incidence, with statistically equivalent efficiency for both substances. Moreover, number of branches per brinjal plant (3.3), plant height (51.4 cm) and number of leaves per brinjal plant (31.5) were significantly (P<0.05) enhanced by salicylic acid compared to control. Hence, spraying garlic clove extract and salicylic acid may therefore be an environmentally potential means of managing brinjal leaf diseases during the vegetative growth stage.
Advanced Automated Drilling Advisory System Enhances Drilling Efficiency
Authors: Al-Rubaii M.
Published: February 2024

In wellbore drilling operations, there are several various operations such as drilling operations, logging, coring, stimulation, completions and well testing. They are expensive operations and consume excessive time for executions. Rate of penetration (ROP), logging tools, formation pressures and other operations required continuous monitoring, evaluation and advisory drilling system for optimized execution in safe and competent manners. In this paper a newly developed advanced drilling advisory system was developed and applied in field drilling operations to drill wells in optimum time and cost in safe and environmental manners.

The are several drilling systems, however, not all of them are feasible in drilling operations and have lack of practicality and technicality. The advanced drilling system was developed to ensure continuous monitoring, evaluation and advisory while drilling and rig operations. The system includes ROP Optimization, hole cleaning advisory system which includes real times drilling fluid and equivalent circulating densities, drilling fluid rheology & capacity efficiencies, surge, swab, bottom hole pressures, rig & drill-bit hydraulics, physical rock properties, and carbon Dioxide (CO2) release measurement and controlling. The system utilized real time drilling sensors, surface parameters and fields inputs to generate real time profiles by using advanced real time algorithms and models.

The results showed accurate matching with literature review domain for physical rock properties, while drilling rig and bit pressures and hydraulics were validated and tested with well drilling and rig optimizations. The improvement was recognized by 50% ROP enhancement, CO2 reduction by 38% and Rig performance optimization by 30%.

The advanced drilling system can add values such as reduced CO2 emission, that is Part of 2030 vision to green initiative of kingdom of Saudi Arabia (KSA), Increased drilling efficiency, Optimized Rig performance, avoid drilling problems, and real-time CO2 reading for tracking.
Validation of Geomechanical Sanding Predictions with Subsequent Production and Water Injection in a Rejuvenated Oil Field, Offshore Malaysia
Authors: Khaksar A. , Asadi S.
Published: February 2024

The "Z-field" is located in Offshore Malaysia and is a shallow water, mature oil field consisting of stacked sandstone reservoirs with interlayered shales. It has been on production since the mid-1980s. Early production wells had cased and perforated completions with sand screens and internal gravel packs. However, due to low productivity, the subsequent wells were completed cased and perforated without downhole sand control. This paper focuses on the credibility of the geomechanical sanding risk evaluation, initially conducted at early field life, and revisited during the field redevelopment stage for sand control and completion decision for high-angled oil producer infill and water injection wells. Field observations to date confirm the accuracy of the latest geomechanical sanding evaluations conducted in 2014 and support the decision to not use downhole sand control. This has resulted in millions of dollars in savings on well construction costs and increased revenue from higher well productivity compared to the earlier wells from the 1980s that were completed with sand screens and internal gravel packs. This study demonstrates the validity of geomechanical assessments conducted at the beginning of field redevelopment. These studies were verified with several years of production data. It is concluded that with robust geomechanical modelling and frequent updates, reliable sanding risk assessments can be provided to well engineers and asset managers for fit-for-purpose and timely sand management and completion decisions.
Auto Sand & Erosion Management System (A-SEMS)
Authors: Napatthamon V. , Tanart W.
Published: February 2024

Sand erosion is the one of top damage mechanism to cause severe loss of primary containment (LOPC) incidents in the Gulf of Thailand (GoT) oil and gas production area where sand production is the known issue. To effectively manage sand erosion in this area while maximizing oil and gas production to meet production target and sale agreement, the development and implementation of automated management system are necessary to handle the unpredictability and rapid deterioration of sand erosion. The automated management system within A-SEMS (Auto Sand & Erosion Management System) has been derived from the historical data analysis, engineering analysis, and operational feasibility, and developed as rule-based Python algorithm to integrate data from various sources related to completion, production, operation, and maintenance activities, then make decision and command action without human intervention to prevent the LOPC incident. After implementing A-SEMS for 11 months, 3 potential LOPC incidents from sand erosion prevented by early detection and responsive action commanded by A-SEMS. Due to effectiveness of A-SEMS to handle sand and erosion concern at topside facilities, benefit gained from inspection cost reduction, workload optimization, incident cost avoidance and unlock production limit from the theoretical maximum allowable sand rate can achieve 9MMUSD per year.
Utilizing Machine Learning Power to Predict the Performance of Carbon Dioxide Trapping in Saline Aquifers
Authors: Alkhowaildi M.
Published: February 2024

Executive Summary

Subsurface carbon dioxide is viewed as a critical technology to combat and mitigate climate change in the upcoming decades. Storing carbon dioxide in deep saline formations is regarded as a promising option for geological carbon storage (GCS), but to fully comprehend the CO2 trapping processes in these formations, reliable methods must be established to evaluate the efficiency of CO2 trapping. In this project, 4 machine learning techniques (Decision Tree, Random Forest, Gradient Boosting and Stacked Generalization) were applied to develop a robust model to assess CO2 trapping efficiency. Additionally, Artificial Neural Network (ANN), a deep learning tool was also developed and tested. The developed ML models demonstrated promising results for predicting trapping indices in saline aquifers, with correlation factor R2 > 0.9. Moreover, partial dependance plots (PDP) were utilized as a sensitivity analysis tool and it showed that some input variables are affecting the results (trapping indices) more than others (i.e. Salinity, temperature & time). The developed ML models RF, GB, and SG specifically exhibited a propitious outcomes.
Offshore CCS – Pre-commissioning Experience and Strategy for Subsea CO2 System
Authors: Davis Rupert John , Ripley Andrew , Roux Arnaud
Published: February 2024

Pre-commissioning of conventional subsea production and injection system is well established and has been delivered reliably by offshore contractors. However, subsea CCS presents significant new challenges, related to CO2 becoming highly corrosive in presence of free water. Corrosion Resistant Alloy (CRA) material could be considered but would result in prohibitively expensive development. Instead, Carbon Steel (CS) are generally considered for CCS system, requiring a stringent control of injected content during all project development phases.

This paper will present the main risks encountered while pre-commissioning subsea CCS system, highlight contractor experience on recent CCS developments and present how conventional O&G contractors’ knowledge can be re-used for this novel industry.
Application of 4D Geomechanical in Fault Sealing Capacity Evaluation of Underground Gas Storage-A Case Study from China
Authors: Huang Xingning. , Wang Mengcong. , Guo Xuhong. , Xu Miao. , Long Xuechen.
Published: February 2024

During the high-speed injection and extraction cycle of an underground gas storage reservoir, the pool's pore pressure, effective stress, and faults change periodically, which may cause formation damage and natural gas leakage, thus affecting the sealing of the entire reservoir. At the same time, the non-homogeneity easily causes local pressure accumulation, which makes the pore pressure and effective stress distribution extremely unbalanced, and the local pressure accumulation in the formation is a potential threat to the operation of the gas storage reservoir. At the same time, clarifying the fault stress field evolution can provide theoretical support for raising the upper limit pressure at a later stage. Therefore, the study of four-dimensional stress field evolution characteristics of the gas storage reservoir geologic body is directly related to the safe operation and efficient use of the gas storage reservoir. This paper investigates the evolution characteristics of fault stress fields in light of the characteristics of multi-cycle high-flow injection and extraction cycles in gas storage reservoirs. In this paper, numerical simulation is used to analyze the factors affecting the integrity of the fault. At the same time, gas-water two-phase seepage and flow-solid coupling principles are used to analyze the seepage mechanics and geomechanics of the conceptual model by combining with the integrated software of geoengineering. According to the simulation results, the pressure and stress fields with time and space changes and distribution characteristics were carried out, and the destructive prediction was carried out to find the submerged destabilized parts. A large-scale seepage-stress coupling field model was established based on the field data, and the model's accuracy was verified by simulation. Finally, seepage mechanics and geomechanical analysis were carried out for the actual model, and the results can provide theoretical support for the construction of the project and the adjustment of the injection and mining program in the later stage to improve the upper limit pressure.
Advisory Automated System for Wellbore Cleaning and Evaluation Improves Drilling Efficiency
Authors: Al-Rubaii M. M.
Published: February 2024

Ineffective hole cleaning leads to a complicated drilling hole problems such as stuck pipe incidents, and difficult tripping operations. The objective of this paper to introduce a unique Hole Cleaning Advisory System which is showing six real time hole cleaning indicators that can provide an obvious vision on hole cleaning performance during drilling operations and thereby improves drilling efficiency. They are real time drilling fluid density (MWeff), real time equivalent circulating density (ECDeff), real time developed carrying capacity index (HCI), and real time developed cuttings concentration in annulus (CCA), real time developed transport ratio (CTRm) and real time transport index (TIm). Artificial intelligence tool such as artificial neural network (ANN) was applied for validation and confirmation of models parameters and obtaining similar real time profiles of hole cleaning indices. The system was utilizing rig sensors’ real time values, surface and field operations readings by collecting historical and real time readings, selecting the most relevant and important factors. Performing data analytics, preparation and interpretation. Finding the relationships between parameters. Modifying critical parameters. Validating models with referenced tools those are applicable and utilized in drilling operations. Integrating developed models in real time drilling operations to evaluate and monitor drilling performance. The conducted process, validations of real time models were done and compared with other commercial software and advanced drilling tool such as Pressure while drilling (PWD) tool and other sensors tools provided by Services Company for drilling operations. The system were applied in the fields and provided a firm and solid validations of the developed system that empowered the new technology to be applied in drilling rigs fleet. Results, Observations, Conclusions: the results showed that the MWeff and ECDeff were validated with pressure while drilling (PWD) and resulted in 2 % errors .MWeff was validated with other commercial software shows real time mud as output, the developed real time model of mud weight while drilling showed errors 2 %. That means the developed models for mud weight and equivalent circulating density were robust and can be utilize while drilling operation to optimize well drilling performance. regarding other hole cleaning indices such as HCI, CCA, CTRm & TIm were applied in several types of well, it was able to identify the hole cleaning issues and improves the drilling efficiency specifically rate of penetration (ROP) by 65 %. The drilling engineering and operation team was performing immediate intervention to avoid drilling troubles due to hole cleaning. The final results contributed for optimizing drilling efficiency significantly in safety and environmental manners with cost and time effectiveness. In addition, participating in drilling automation and digitalization in compatibility with fourth industrial revolution (4-IR).
Gold Hydrogen - New Opportunities from Surface Processing Perspective
Authors: Sahak Muhammad Zakwan Mohd , Daud Nik Mohd Radi Nik Mohd , Thant Maung Maung Myo , Jones Ernest A
Published: February 2024

The term "Gold hydrogen" or "white hydrogen" typically refers to hydrogen naturally found in subsurface reservoirs. The discovery and recovery of this natural hydrogen is still limited at large scale, however it is emerging as a potential hydrogen source to be explored, as the world moves towards Energy Transition and hydrogen as clean energy fuel source of the future. To effectively produce and export hydrogen from the reservoir, new surface facility design considerations and changes need to be adopted and implemented that are different from a typical natural gas production process. Production of natural hydrogen provides several advantages compared to industrial methods of hydrogen production which are associated with high energy cost for water electrolysis and CO2 emissions from steam methane reforming process. However, literature sources indicate that hydrogen content in the produced gas from the subsurface ranges from 0-100%, and usually is accompanied with presence of other gases such as CO2 (up to 3.7%), nitrogen (up to 99%), hydrocarbon gases (up to 50%), helium (up to 8%) and argon (up to 0.5%). Due to the difference in compositional range among all gases, different processing schemes are required. The key challenge faced is the purification of hydrogen from other gases especially in the presence of helium which is closer to the molecular size of hydrogen making typical separation technology such as Pressure Swing Adsorption (PSA) ineffective. Due to the commercial potential of helium, it is also worthwhile to separate helium for sales, with one potential technology identified is metal hydride separation. This proposed concept of hydrogen recovery (consisting of bulk separation, purification and hydrogen-helium separation) is planned to be deployed at a pilot-scale natural hydrogen production facility at an onshore site.
Rapid Depressurization and Corrosion Evaluation of OCTG Connections for CCS Injection Wells
Authors: Mauger Pierre , Martin Pierre , Boufflers Laurent , Rodriguez Diana
Published: February 2024

Carbon capture and storage (CCS) is a key technology to decarbonize many industrial processes. Premium OCTG connections are key components in CCS wells ensuring structural and tightness performance between the casing and the tubing pipes. Vallourec research and development departments continue to develop a comprehensive connection test protocol for CCS injection wells and investigate impact of low temperature and the corrosion performance of premium OCTG connections with liquid CO2.

CO2 phase change can occur in the tubing during the process of injection or during the shut-in of the subsurface safety valve generating the Joule-Thomson effect due to rapid depressurization. The temperature can plummet to '60°C in regular operations and could lead to the failure of the tubing in the well posing risks to human safety and the environment due to uncontrolled CO2 release. A rapid depressurization test has been put in place to reproduce this phenomenon.

The aim of this paper is to describe the tests performed under combined load of tension and external pressure with liquid CO2. The specimens tested in rapid depressurization were in super duplex stainless steel. They were inspected after these tests to check if corrosion or pitting were present inside the connection.

A premium OCTG connection in 5-1/2″ 20.00# 25Cr 80ksi with dope free solution and compatibility configuration has been tested according to the CCS test rapid depressurization evaluation. The first test was performed at 80% of pipe capacity with 100 bar of liquid CO2 with an ambient temperature at 25°C. The specimens experienced a temperature of '60°C in 7 minutes without any leak or structural failure. A second test was carried out under pure external pressure at 473 bar and a third test with combined loads: tension at 510 kN and external pressure at 473 bar. The liquid CO2 pressure was at 100 bar and 20°C as initial temperature condition. During the rapid depressurization the temperature went down from 20°C to '60°C in 10 minutes without any leak or structural failure. A failure test was also conducted under depressurization above 100% of connection capacity.

The connections with metal-to-metal seal tested in rapid depressurization were compared to configurations tested for their corrosion resistance in autoclave. All the configurations tested show no indication of pitting nor corrosion on the seal.

The size tested with rapid depressurization evaluation demonstrated this product is compatible for CCS injection wells in the most severe conditions. The additional physical data also allowed to better understand the temperature drop in full-scale tests. The metal-to-metal seal with dope free solution presented no corrosion after these tests and confirmed the suitability of premium OCTG connections to liquid CO2.