bluuebunny/crossref_metadata_2025 huggingface dataset:
Peripheral Nerve Injuries: The Recent Surgical Management Strategies
Authors: Ebrahem Orif Sahar , Uyanıkgil Yiğit
Published: August 2024

Objectives: Numerous individuals with peripheral nerve injuries (PNIs) have permanent disability, which is a major health concern. There are a number of potential causes of PNIs, including piercing injuries, compression, stretch, and ischemia. These injuries can present with a variety of clinical symptoms.
Methodology: In order to clarify the many forms of injury, the peripheral nerve's anatomy is thoroughly explained in this review, which attempts to revisit key PNI ideas. In addition, the specific pathophysiological processes that follow a peripheral nerve damage and the related variables that might either support or undermine the body's ability to regenerate itself depending on PNIs classifications are also mentioned. Next, the recent therapeutic neurosurgical approaches that are accessible in cases of PNIs are described.
Results: Following our overview of the previous literatures on neurosurgical strategies for the management of PNIs, we can observe that surgical procedures are unfortunately very expensive and that their use has been limited due to a variety of adverse effects, such as immunosuppression, chromosomal abnormalities, and tumorigenicity.
Conclusion: In accordance with the source, location and extent of the injury, there are currently advantages to treating PNIs with both surgical and non-surgical approaches. These days, it is possible to identify innovative techniques with the aid of good information regarding incidences, existing practice, outcomes, and study types. Despite a great deal of research on this topic, full functional recovery is still a problem that has to be solved.
Features of clinical and morphological diagnosis of esthesioneuroblastoma
Authors: Speransky Dmitry L. , Ermilov Viktor V. , Shatalova Olga V. , Speransky Leonid D. , Suchilina Olga V.
Published: August 2024

The incidence of malignant neoplasms in Russia and the world is growing, and among the many malignant tumors of the main localizations, there are rare forms of cancer, mentioned in the literature as a description of single cases. Such diseases include a malignant neuroepithelial tumor arising from the olfactory neuroepithelium of the nasal cavity – esthesioneuroblastoma (ENB), which accounts for only 3 to 6% of cases of malignant neoplasms of the nasal cavity and paranasal sinuses. In due to the rarity of this disease, there are certain difficulties in the clinical and morphological diagnosis of ENB, there is no coding of it in the ICD, and there are no uniform standards of treatment. The article presents the results of a retrospective analysis of the features of clinical and morphological diagnosis of esthesioneuroblastoma. The study was conducted using the database of the Volgograd Regional Clinical Oncology Dispensary from 2003 to 2023. At the initial histological examination, the diagnosis of esthesioneuroblastoma was established only in 6 patients (66.6 %), in three patients (33.4 %) other forms of the malignant process were diagnosed, which did not correspond to clinical manifestations. Immunohistochemical (IHC) data confirm the greatest correspondence of the immunophenotype to olfactory neuroblastoma, G3 (according to Hyams) M9522/33. The study showed that the use of IHC for differential diagnosis is mandatory and allows for more accurate identification of esthesioneuroblastoma.
A társadalmi innovációs potenciál és a területi jóllét számszerűsítésének lehetőségei
Authors: Tóth Géza
Published: August 2024

A társadalmi innováció célja a jóllét javítása. Ennek nyomon követése érdekében hoztuk (Varga– Tóth–Nagy, 2020) létre a társadalmi innováció alapjait számszerűsítő, ún. társadalmi innovációs potenciál mutatót. Jelen tanulmány célja, hogy bemutassa mind a társadalmi innovációs potenciált, mind pedig a szakirodalomban létező különböző jólléti megközelítéseket/modelleket. Azonos módszerek segítségével vizsgálom a hat elemzett jólléti megközelítés térbeli eredményeit, a különböző területi mintázatokat, és a módszerek esszenciájaként mutatja be a járások aktuális jólléti helyzetét. A tanulmány rámutat arra, hogy a hat megközelítésből – a gazdasági erő kivételével – öt esetében nagyon szoros kapcsolat fedezhető fel, az eltérő mutatókészlet és módszertan ellenére is. Végül a területi különbségek és a jóllét közötti kapcsolat elemzésére kerül sor.
Opinion Dynamics in Social (Media) Networks : Theorizing Procedural Influences on Technologically Enabled Opinion Formation and Diffusion in Social Networks
Authors:   , Eismann Kathrin
Published: August 2024

Die Dissertation beschäftigt sich mit dem kausalen Einfluss von Social-Media-Plattformen auf Prozesse der Meinungsbildung und –verbreitung unter den Nutzerinnen und Nutzern dieser Plattformen. Im Fokus stehen Social-Media-Netzwerke, also Plattformen, die im Wesentlichen darauf ausgerichtet sind, den Nutzenden Möglichkeiten zur Erstellung und Verbreitung von digitalen Inhalten zu bieten und darüber hinaus Interaktionen zwischen ihnen zu begünstigen. Das Explanandum der Arbeit stellen die auf Social-Media-Plattformen zu beobachtenden Meinungsdynamiken ("Opinion Dynamics") dar. Diese beinhalten sowohl Prozesse der Meinungsbildung ("Opinion Formation") als auch der Meinungsverbreitung ("Opinion Diffusion") unter den Nutzerinnen und Nutzern der Plattformen. Den empirischen Kontext der Arbeit bildet der Einsatz von Social-Media-Plattformen als Kriseninformationssysteme. Ereignisse wie Waldbrände, Hochwasser, Erdbeben oder auch terroristische Anschläge stellen die von ihnen betroffenen Organisationen vor enorme Herausforderungen. Plattformen wie Facebook und Twitter kommen dabei seit einigen Jahren verstärkt zum Einsatz, um etwa Warnmeldungen und andere Informationen effizient zu verbreiten, Unterstützung für Betroffene zu organisieren und emotionale Verbundenheit herzustellen. Die Interaktionen zwischen den Nutzerinnen und Nutzern der Plattformen können dabei spezifische soziale Dynamiken in Gang setzen. Ein Beispiel hierfür ist die Verbreitung von Gerüchten: Während oder kurz nach einem Krisenereignis sind aktuelle und offiziell bestätigte Informationen oft rar. Wenn direkt oder indirekt Betroffene oder auch Vertreterinnen und Vertreter der Medien und die breitere Öffentlichkeit angesichts der Informationsknappheit auf Social-Media-Plattformen zurückgreifen, um Informationen zu suchen oder mit anderen zu teilen, können auch unbestätigte Informationen und Falschmeldungen ein großes Publikum erreichen.
Coconut Shells, Water Hyacinth and Rice Husks are Very Effective in Improving the Quality of Physical and Chemical Standards of Dug Well Water in Flood Areas
Authors: Marlinae Lenie , Biyatmoko Danang , Husaini  , Irawan Chairul , Arifin Syamsul , R Saidi Akhmad , Fithria Abdi , Zubaidah Tien , M. Ratodi  , A. Mourad Khaldoon , Khairiyati Laily , Waskito Agung , H.D Lasari Hadrianti , Khoiroh Ianatul
Published: August 2024

Introduction: Ensuring access to clean and safe drinking water is crucial, especially in flood-prone regions where the water quality in dug wells can deteriorate due to various physicochemical factors. This research was aimed to measure the effectiveness of natural materials in improving water quality based on physicochemical parameters and to compare water quality before and after treatment in Astambul Subdistrict of Banjar Regency, South Kalimantan Province. Methods: The study involved a survey of 192 private boreholes and dug wells across five villages in the Astambul Subdistrict, with 30 samples selected for detailed analysis. Key physicochemical parameters analyzed included total dissolved solids (TDS), dissolved oxygen (DO), turbidity, and total suspended solids (TSS). TDS, with a standard limit of 50 mg/L, served as a primary water quality indicator. DO, essential for gauging water oxygenation, and was measured as it results from photosynthesis and atmospheric absorption. Turbidity was assessed using a turbidimeter to determine water clarity, and a UV-vis Spectrophotometer 2008 was utilized to measure levels of iron (Fe) and mangasene (Mn). Results and Discussion: The findings demonstrated that coconut shells, husks, and water hyacinths improved water quality across physical and chemical parameters. Statistical analysis using t-tests showed improvements in these parameters after treatment. For example, DO levels increased in multiple villages, with the highest percentage in Kaliukan Village (59.2%) and decreases in turbidity and TSS. Conclusion: The study concluded that coconut shells, husks, and water hyacinths have potential to enhance physicochemical quality of water.
CORRELATION BETWEEN SGOT AND SGPT LEVELS WITH POSITIVE HBsAg LEVELS
Authors: Rosyidah Nisa'ur , Widyastuti Erlinda , Rahman Annisa Auliya , Handayani Nur Septia , Belgis
Published: August 2024

Background: Serum Glutamic Oxaloacetate Transaminase (SGOT) and Serum Glutamic Pyruvic Transaminase (SGPT) are transaminase enzymes used to determine liver damage. The increase in both enzymes can indicate the level of liver cell damage. Hepatitis B surface antigen (HBsAg) is an antigen that can indicate an acute infection or a chronic carrier. Purpose: This study aims to determine the correlation between SGOT and SGPT levels with positive HBsAg levels. Method: It is a cross-sectional study using medical records from patients with positive HBsAg who performed SGOT and SGPT examinations at the Haji Public Hospital, East Java Province, in 2021. The correlation analysis used in this study is Kendall's tau correlation because the data contains outliers and is not normally distributed. Result: Based on the results, it is known that there is no significant correlation between SGOT and SGPT levels with positive HBsAg levels. The correlation coefficient for each is 0.110 and 0.144. Conclusion: It can happen because HBsAg levels vary between the disease's different phases, the patient's characteristics, and the levels of SGOT and SGPT.
CORRELATIONS OF SHIFT WORK 2-2-2(2) ROTATION ON SLEEP QUALITY AND FATIGUE OF NURSES IBNU SINA GRESIK GENERAL HOSPITAL
Authors: Saikhunuddin  , Widajati Noeroel
Published: August 2024

Background: Working as a nurse in a hospital required to work with a shift system. Working with the shift system (morning, afternoon, and night) can affect the circadian rhythm, which has the potential to cause sleep disturbances and fatigue. Purpose: This research aims to analyze the influence of shift work rotation 2-2-2(2) on sleep quality and fatigue in nurses with shift work systems in inpatient rooms at General Hospital Ibnu Sina Gresik. Method: This research was an observational analytics study with a cross-sectional design. The total sample was 80 nurses in an inpatient care unit with a shift work system chosen through purposive sampling techniques. The Subjective Self-Rating Test (SSRT) issued by the Industrial Fatigue Research Committee (IFRC) questionnaire was used for the measurement of fatigue, and the Pittsburgh Sleep Quality Index questionnaire (PSQI) was used for the assessment of sleep quality. Univariate and bivariate analyses were done with a Chi-square statistical test. Result: The study showed that most respondents had good sleep quality (87.5%), and most had low tiredness (71.2%). The Chi-square test results obtained a p-value of 0.224 > 0.05 and a p-value of 0.108 > 0.05, meaning there were no correlations between shift work and sleep quality and fatigue. Conclusion: Shift work had no relationship with sleep quality and fatigue. Appropriate shift work arrangements can contribute to reducing the negative impact of shift work.
Fluorescent guided surgery for sinonasal tumors
Authors: Chang Michael , Baik Fred
Published: August 2024

Near-infrared fluorescence is increasingly finding utility in surgery. The ease of administering contrast agents, the ability to image in real-time, and the lack of tissue disruption are features of fluorescence imaging which have contributed to its use in the operating room. In this review, we examine fluorescence-guided surgery in the context of sinonasal tumors, evaluate currently available contrast agents and their targets, and discuss future applications of fluorescence in endoscopic sinus surgery.
Social Media Marketing Dynamics and Brand Loyalty: A Sequential Mediation Model in the Indonesian Packaged Drinking Water Industry
Authors: Andika Andika , Yusrita Yusrita , Nugroho Joko Purwanto , Luthfiana Della Nanda , Hak Rizki Zaenul
Published: August 2024

Purpose – This study uses the stimulus organism response (SOR) as the theory framework to analyze the sequential mediating roles of brand experience (BE), brand trust (BT), and brand love (BLV) to show the connection between Social Media Marketing (SMM) activities and brand loyalty (BL).
Design/methodology/approach – The study approach was empirically evaluated using 310 SM users as data who follow bottled water brands on any platform and have made a purchase. Furthermore, a sequential multiple mediation model was tested using PLS-SEM.
Findings – The results indicate that SMM significantly impacts BE, and BE significantly affects BT and BLV. Subsequently, this influence of BT and BLV contributes to an increase in BL. Additionally, it was revealed that BE, BT, and BLV sequentially and significantly mediate the relationship between SMM and BL.
Research limitations/implications – Its cross-sectional design, sample bias towards younger, educated respondents, a narrow focus on BL from SMM activities, and a lack of consideration for sustainability and broader product types suggest a need for more diverse and longitudinal future research.
Practical implications – The result emphasizes the need for brands to leverage SM as a critical channel for consumer engagement, suggesting the adoption of personalized, entertaining, and interactive digital campaigns to increase through memorable BE.
Originality/value – This study pioneers using SOR theory to explore the SMM impact on BL within the bottled water industry, providing novel insights through empirically validating a model that links SMM activities with loyalty via BE, BT, and BLV.
The Influence of the Activeness of Following Instagram @Ngajilagi.id on Interest in Reading the Qur'an in Indonesia
Authors: Malik Asriati Aulia
Published: August 2024

This study aimed to assess the extent of interest in reading the Quran among @ngajilagi.id followers, the level of engagement of Instagram users with the @ngajilagi.id account, and whether there's a correlation between interest in Quranic reading and Instagram activity among followers in Indonesia. This research adopted a quantitative ex-post facto approach, employing targeted sampling and simple linear regression analysis for hypothesis testing. The findings indicate a substantial level of interest in Quranic reading in Indonesia. The study revealed that 4% fell within the deficient category, 21% in the low category, 29% in the medium category, 36% in the high category, and 10% in the very high category. Regarding Instagram activity on @ngajilagi.id in Indonesia, it was moderate. The analysis indicated that 8% fell within the deficient category, 21% in the low category, 38% in the mild category, 23% in the high category, and 10% in the very high category. Based on the analysis and data processing conducted by the researchers, it was found that the significance value is 0.000 < 0.05. This indicates that the null hypothesis (H0) is rejected, and the alternative hypothesis (H1) is accepted. Therefore, it can be concluded that the activity of followers of the Instagram account @ngajilagi.id influences the interest in reading the Qur'an in Indonesia, with an influence of 24.7%.
Far Cortical Locking Versus Standard Constructs for Locked Plate Fixation in the Treatment of Acute, Displaced Fractures of the Distal Femur
Authors: Lefaivre Kelly A. , Slobogean Gerard , O’Hara Nathan N. , O’Brien Peter J. ,   the Canadian Orthopaedic Trauma Society (COTS) Investigators
Published: August 2024

Background:

Fixation of distal femoral fractures remains a challenge, and nonunions are common with standard constructs. Far cortical locking (FCL) constructs have been purported to lead to improved fracture-healing as compared with that achieved with traditional locking bridge plates. We sought to test this hypothesis in a comparative effectiveness clinical trial.

Methods:

This randomized trial was performed across 16 centers and included adult patients with an AO/OTA type 33A or 33C distal femoral fracture that was suitable for bridging fixation. We excluded patients with periprosthetic fractures. Participants were randomly assigned to either FCL fixation or standard locking plate fixation. The primary outcome was a hierarchical composite of radiographic and clinical fracture-healing at 3 months after fixation. We estimated between-group differences with use of the win ratio approach. Secondary outcomes included radiographic healing, clinical fracture-healing, complications, reoperations, and health-related quality of life (Short Form-36 Health Survey Version 2 [SF-36] Physical Component Summary and Mental Component Summary scores) at 3, 6, and 12 months after fixation.

Results:

We randomly assigned 193 patients to treatment with either FCL screws (96 patients) or standard screws (97 patients). The study population had a mean age of 63.4 years, consisted predominantly of women (68%), and was well-balanced between AO/OTA 33A and 33C fractures. Based on 4,355 pairwise comparisons, the calculated win ratio was 1.18 (95% confidence interval [CI], 0.77 to 1.79; p = 0.45), indicating that patients assigned to FCL screws had better outcomes in 51% of the comparisons. Radiographic healing did not differ significantly between the groups (odds ratio, 1.36; 95% CI, 0.69 to 2.72; p = 0.38), nor did Function IndeX for Trauma (FIX-IT) scores (p = 0.41). There were no significant differences between the groups in terms of SF-36 Physical Component Summary scores at 3 months or in the change in scores at 12 months after fixation.

Conclusions:

In this multicenter randomized trial of adult patients with an AO/OTA type 33A or 33C distal femoral fracture, similar clinical and radiographic healing outcomes were observed in the FCL and standard fixation groups.

Level of Evidence:

Therapeutic Level I. See Instructions for Authors for a complete description of levels of evidence.
Ten-Year Follow-up of Posterior Decompression and Fusion Surgery for Thoracic Ossification of the Posterior Longitudinal Ligament
Authors: Ito Sadayuki , Nakashima Hiroaki , Segi Naoki , Ouchida Jun , Oishi Ryotaro , Yamauchi Ippei , Miyairi Yuichi , Morita Yoshinori , Ode Yukihito , Imagama Shiro
Published: August 2024

Background:

We evaluated the clinical, functional, and quality of life (QoL) outcomes of surgical treatment of thoracic ossification of the posterior longitudinal ligament (T-OPLL).

Methods:

We retrospectively evaluated 51 patients followed for ≥10 years after posterior decompression and corrective fusion surgery for T-OPLL. The data collected included demographics, comorbidities, and pre- and postoperative symptoms. The Japanese Orthopaedic Association (JOA) score, numerical rating scale (NRS) for back and leg pain, and EuroQol-5 Dimension-5 Level (EQ-5D-5L) were used to assess neurological function, pain, and QoL. Imaging evaluations were conducted to assess changes in kyphotic angles and ossification progression.

Results:

A significant improvement was observed in the JOA score from preoperatively (3.7) to 2 years postoperatively (7.9) (p < 0.05); the score remained stable thereafter. The mean EQ-5D-5L score improved from 0.53 preoperatively to 0.68 at 10 years postoperatively (p < 0.001). NRS scores for back and leg pain decreased from 5.4 to 3.5 and 4.0 to 3.0, respectively, from preoperatively to 10 years (p < 0.001 for both). Radiographic outcomes showed changes in kyphotic angles and ossification areas, with no significant progression after 2 years. Fourteen (27.5%) of the patients experienced postoperative complications. Of these, 8 (15.7%) required reoperation, 6 (11.8%) in the perioperative period and 2 (3.9%) later. Four (7.8%) of the patients underwent additional surgeries for conditions including lumbar spinal canal stenosis and cervical OPLL. Nonetheless, physical function in all cases with postoperative complications or additional surgery remained stable over the decade.

Conclusions:

Surgical treatment of T-OPLL is effective in improving neurological function, QoL, and pain management over an extended period. The long-term outcomes of T-OPLL surgery revealed that, although cervical and lumbar spinal lesions led to reoperations, they did not affect QoL, and relative improvement was maintained even after 10 years.

Level of Evidence:

Therapeutic Level IV. See Instructions for Authors for a complete description of levels of evidence.
Revisiting Differences in Fourth-Year Orthopaedic Away Rotation Opportunities and Fees Among Allopathic and Osteopathic Medical Students
Authors: Modica Anthony , Kazimierczak Adam , Klein Brandon J. , White Peter B. , Bitterman Adam D. , Cohn Randy M.
Published: August 2024

Introduction:

Fourth-year away rotations are an important modifiable variable proven to increase students' opportunities to match into orthopaedic surgery. The purpose of this study was to determine differences in away rotation eligibility requirements and cost of rotation between allopathic and osteopathic students during the 2023 application cycle. Eligibility requirements and fees were then compared with the 2021 application cycle.

Methods:

A cross-sectional study was performed during the 2023 application cycle of all nonmilitary, Accreditation Council for Graduate Medical Education (ACGME)-accredited orthopaedic surgery residency programs (n = 194). Each program's website, affiliated school of medicine's website, visiting student application service portal, and Residency Explorer tool were searched for eligibility criteria, associated rotation fees, and other rotation requirements. Two-sample Z tests for proportions were utilized to compare differences in programs with differing requirements for students based on academic degree type. Data were compared statistically with previously reported data from the 2021 application cycle.

Results:

In 2023, there were more programs that restricted osteopathic medical students from away rotations than programs that restricted allopathic medical students (12/194, 6.2% vs. 0/194, 0.0%; p < 0.001). All 12 programs were formerly ACGME-accredited before the integration into a single accreditation system. There was a decrease in the number of programs restricting osteopathic medical students from away rotations compared with the 2021 application cycle (18/194, 9.3% vs. 12/194, 6.2%; p = 0.254). Fees associated with away rotations ranged from $25 to $4,000 for both allopathic and osteopathic students. The number of programs that charged osteopathic medical students higher rotation fees than programs that charged allopathic students when compared with the 2021 application cycles decreased (1/194, 0.5% vs. 5/194, 2.6%; p = 0.049).

Conclusions:

While some programs continue to have away rotation eligibility requirements that prohibit osteopathic medical students from rotating, only one residency program currently charges osteopathic medical students a higher fee to rotate than allopathic medical students.
Nutritional Considerations in Hip and Knee Arthroplasty
Authors: Arapovic Avianna E. , Nham Fong H. , Darwiche Hussein , El-Othmani Mouhanad
Published: August 2024

» Initial screening for malnutrition can be initiated with a fibrinogen-albumin ratio threshold <11.7.

» Protein supplementation to goal (1.2-1.9 g/kg), along with essential amino acid augmented with beta-hydroxy-beta-methylbutyrate and resistance training have shown benefit, especially in sarcopenic patients.

» Omega-3 and omega-6 polyunsaturated fatty acid supplementation has a strong antioxidant role and gain of muscle mass.

» Supplementation with adenosine triphosphate and magnesium sulfate provides an avenue to decrease postoperative pain and opioid consumption.

» Motivational interviewing and multidisciplinary teams to achieve preoperative weight loss >20 lbs in morbidly obese patients can decrease complication rates.
Analysis of beach cusp formation and evolution using high‐frequency 3D lidar scans
Authors: O’Dea Annika , Brodie Katherine
Published: August 2024

Beach cusp characteristics were explored using 15 months of 3D lidar scans collected hourly at the Duck, NC, Field Research Facility. Fourier analyses performed on lidar-derived beach elevation contours generated spatial cusp spectra. Active cusp events identified from the location and magnitude of each spectrum’s peak were used to evaluate conditions during cusp formation and evolution. Cusps primarily developed during normally-incident, long-period, low-energy wave conditions with low frequency spread and reflective beach conditions. Often, however, persistent upper-beach cusps lasted days to months and dynamic lower-beach cusps evolved over individual tidal cycles. At times, beaches exhibiting multiple cusp systems reverted to a single cusp system extending the entire beach when the high-tide waterline reached the upper-beach cusps, with the location and spacing of the resulting lower-beach cusps controlled by the upper-beach cusps. This is consistent with a “morphological coupling” hypothesis that hydrodynamic-morphodynamic feedbacks between the swash and upper-beach cusps can form lower-beach cusps with a related wavelength as the tide falls. However, sometimes the high-tide waterline reaching the upper-beach cusps did not result in a unified beach state. This suggest that morphological coupling is often an important factor in controlling the development of new lowerbeach cusps but cannot initiate cusp formation in hydrodynamic conditions outside those favorable for cusp activity.
Geochemistry and clay mineralogy of shales in the Sulu Orogenic Belt, East China: suggestion for continental weathering during an Early Cretaceous hyperthermal interval
Authors: Wang Hailong , Wang Wenxia , Cao Peijing , Qin Min , Shao Yiqi , Li Shoujun , Miao Chunhui , Zhang Xiangyu
Published: August 2024

Understanding past weathering–climate feedback mechanisms under greenhouse conditions has significance for guiding the development of climate mitigation strategies. The continental paleoweathering state of Early Cretaceous shales in the Sulu Orogenic Belt of East China during a hyperthermal interval related to oceanic anoxic event 1a (OAE1a) was investigated via geochemical and clay mineralogical analyses of shale samples. The resulting diagrams of ternary 15Al2O3–Zr–300TiO2 discrimination, Th/Sc and Zr/Sc show that the geochemical composition was mainly controlled by source composition. This is supported by observations of low Zr contents, high indexes of compositional variability (ICV; > 1), and micropetrological characteristics. All samples showed narrow SiO2/Al2O3 and (Fe2O3 + MgO)/Al2O3 ranges that were within the predicted weathering trends of the ternary A-CN-K diagram, indicating that the shale geochemistry was not influenced by silicification and K-metasomatism. The chondrite-normalized rare-earth-element pattern suggests that all samples had the same felsic igneous parent rock. The geochemistry of whole rocks and their silicate fractions indicates that the shale had low chemical indexes of alteration (CIA) but high ICV values compared to post-Archean Australian Shale, indicating low sediment maturity and extremely weak chemical weathering in the source terrane and/or sedimentary basin under hot-dry conditions. Moreover, the clay minerals in the shale were mainly illite, suggesting low mineral weathering. Thus, during the OAE1a-related hyperthermal interval, chemical weathering was relatively weak in some mid-latitude arid inland areas. This may be mainly due to aridification decreasing water–rock reactions. Chemostratigraphic analysis suggests that the CIA, Ga/Rb, and Rb/Sr values of shales from the upper strata of the Yangjiazhuang and Shuinan formations were greater than those from lower strata. Moreover, the opposite trend in K2O/Al2O3 ratios was found. These indices suggest gradual increases in chemical weathering as the climate changed from hot-dry to warm-humid. In contrast, proxy indices of shale from the Zhifengzhuang Formation showed the opposite trend, suggesting a gradual decrease in chemical weathering as the climate changed from warm-humid to hot-dry. Considering the composition of the clay minerals, it is speculated that continental weathering was dependent on atmospheric humidity rather than temperature under the extreme greenhouse conditions, resulting in ineffective climate regulation by chemical weathering. This comprehensive study advances our understanding of the weathering–climate feedback mechanism under greenhouse regimes.
MAKNA SIMBOLIS SEGO JANGKRIK DALAM TRADISI BUKA LUWUR SEBAGAI PEMBELAJARAN IPS KELAS VIII MTS N 2 KUDUS
Authors: Mohammad Moksin Zulia Kharissatul Zumna , Maulida Afi Nor Khalimah  , Dany Miftah M.Nur
Published: August 2024

Buka luwur adalah upacara tukar kelambu di makam Sunan Kudus. Aplikasi luwur terbuka yang berlangsung di dekat Pemakaman Umum Dukuh. Tradisi Buka Luwuri tidak hanya ada, tetapi hanya ada di Sunan Kudu dan dipraktikkan di beberapa daerah di Indonesia. Upacara pembukaan tradisi Luwur kanjeng Sunan Kudus merupakan tradisi yang diwariskan secara turun temurun oleh masyarakat yang disakralkan. Buka luuur berasal dari kata buka artinya membuka dan luuur artinya kain penutup Makam Sunan Kudus. Upacara pembukaan Luwur berlangsung setahun sekali yaitu pada hari ke 10 Muharram, simbol ritual antara makanan lain yang disajikan dalam ritual perlindungan, perawatan, dll. Hal ini dilakukan untuk mengenali semangat, keinginan dan perasaan jahat untuk mendekati Tuhan. Mendekati sedekah, pesta, ucapan selamat, dan usaha serupa benar-benar merupakan kumpulan budaya yang abstrak. Menjadi lebih tinggi dari manusia tidak mempengaruhi mereka secara negatif. Jenis penelitian ini adalah penelitian kualitatif dengan menggunakan metode dokumentasi dan penelitian kepustakaan dengan menggunakan sumber sekunder dari buku atau internet dalam jurnal ilmiah. Nasi Jangkrik atau Sego Jangkrik unik karena isinya bukan jangkrik seperti namanya. Namun nasinya dicuci dengan kuah santan yang diisi daging kerbau atau kambing yang dipotong kecil-kecil. Uniknya, nasi jangkrik dibungkus dengan daun jati. Makna Sega Jangkrik dapat diterapkan sebagai bahan ajar IPS untuk kelas VII MTS 2 Kudus.
Kata kunci: Makna Simbolis, Sumber Pembelajaran IPS
PENGARUH PENGGUNAAN TIKTOK SEBAGAI MEDIA PEMBELAJARAN TERHADAP KEAKTIFAN DAN HASIL BELAJAR SISWA PADA MATA PELAJARAN IPS KELAS VIII DI MTSN 3 PONOROGO
Authors: Mufidah Anis Muthoharoh , Hakim Arif Rahman
Published: August 2024

Penelitian ini dilakukan karena terdapatnya permasalahan mengenai menurunnya keaktifan dan hasil belajar siswa pada pembelajaran IPS. Hal tersebut terbukti dari apa yang peneliti observasi, bahwa jarang ditemukan siswa yang aktif untuk menanyakan kembali materi yang belum dipahami, sehingga ketika suasana belajar di kelas kurang melibatkan keaktifan siswa akan cenderung membawa pengaruh negatif pada hasil belajar siswa. Salah satu cara yang dapat dilakukan untuk masalah tersebut adalah penggunaan media pembelajaran TikTok.Tujuan dari penelitian ini adalah untuk membuktikan bahwa penerapan aplikasi TikTok berpengaruh terhadap keaktifan dan hasil belajar siswa pada mata pembelajaran IPS Kelas VIII di MTsN 3 Ponorogo dan apakah media pembelajaran TikTok efektif untuk meningkatkan keaktifan dan hasil belajar siswa pada mata pembelajaran IPS Kelas VIII di MTsN 3 Ponorogo.Penelitian ini menggunakan pendekatan penelitian kuantitatif. Jenis penelitian yang digunakan adalah eksperimen. Desain dalam penelitian ini menggunakan desain eksperimen semu (Quasi Experimental). Sedangkan teknik sampling yang digunakan peneliti adalah cluser random sampling (Area sampling). Sampel pada penelitian ini terdiri dari dua kelas, yaitu kelas eksperimen dan kelas kontrol. Teknik pengumpulan data yang digunakan adalah angket dan tes. Angket digunakan untuk mengukur tingkat keaktifan siswa berupa 12 pertanyaan, sedangkan tes berjumlah 16 soal berbentuk pretest dan posttest pilihan ganda (a,b,c,d)Hasil penelitian menunjukkan bahwa, 1) ada pengaruh yang signifikan dari hasil angket keaktifan siswa setelah diberikan perlakuan (posttest), hal ini dibuktikan dengan asumsi uji-t Independent Sampel T-test. 2) ada pengaruh yang signifikan untuk tes soal hasil belajar siswa setelah diberikan perlakuan (posttest), hal ini dibuktikan dengan asumsi uji-t Independent Sampel T-test. 3) ada pengaruh yang signifikan dari variabel independent terhadap berberapa variabel dependen untuk angket keaktifan dan soal tes hasil belajar siswa antara kelas kontrol dan eksperimen hal ini dibuktikan dengan menggunakan uji manova (Multivariate analisis Of Variance).
PENGARUH PERGAULAN TEMAN SEBAYA TERHADAP MINAT BELAJAR IPS
Authors: Permatasari Defyna , Zazak Soraya Siti
Published: August 2024

Penelitian ini bertujuan untuk mengetahui pengaruh pergaulan teman sebaya terhadap minat belajar IPS siswa kelas VII di SMPN 2 Jetis. Penelitian ini menggunakan pendekatan kauntitaif dengan jenis ex-post facto. Teknik pengumpulan data yang digunakan yaitu angket dan dokumentasi. Populasi dalam penelitian ini adalah seluruh siswa kelas VII SMPN 2 Jetis sejumlah 60 siswa. Sampel yang digunakan sejumlah 60 siswa karena penelitian ini menggunakan teknik sampling jenuh yakni seluruh populasi dijadikan sampel. Analisis data menggunakan uji prasyarat yang terdiri dari uji normalitas dan uji linearitas serta uji hipotesis menggunakan analisis regresi sederhana menggunakan bantuan aplikasi SPSS 25. Hasil penelitian menunjukkan bahwa nilai P-value (0,002) < α (0,05). Berdasarkan hasil analisis data dan pengujian hipotesis, perhitungan menunjukkan H0 ditolak dan Ha diterima. Jadi, dari perhitungan di atas dapat disimpulkan bahwa terdapat pengaruh yang signikan dari pergaulan teman sebaya terhadap minat belajar IPS siswa kelas VII di SMPN 2 Jetis. Adapun nilai Rsquare sebesar 0,151. Nilai tersebut menggambarkan bahwa variabel pergaulan teman sebaya berpengaruh sebesar 15,1% terhadap minat belajar IPS siswa sedangkan 84,9% dipengaruhi oleh faktor lain yang tidak dijelaskan lebih lanjut pada penelitian ini.
Field-Scale Reactive Transport Modeling of Bio-Methanation During Underground Hydrogen Storage in Saline Aquifers
Authors: AL homoud Rana , Machado Marcos Vitor Barbosa , Daigle Hugh
Published: August 2024

In the context of underground hydrogen storage in saline aquifers, hydrogen is in direct contact with the formation brine, which rises various concerns about the dissolution of hydrogen in water, and the microbial/abiotic geochemical reactions that may occur consequently. In this study, we expand on the knowledge of the microbial reactivity during underground hydrogen storage in saline aquifers, in particular, the methanogenesis reaction that consume the hydrogen and carbon dioxide to generate methane. This study delves into the impurity-induced geochemical reactions on a field scale level. Through utilization of kinetic parameters from the experimental data, and advance computational modeling, we elucidate the mechanisms governing this reaction and their consequences for storage efficiency, safety, and environmental impact. On the other hand, the potential of methane formation in the presence of microorganisms and CO2 poses a critical challenge to hydrogen storage. The presence of microbes under appropriate conditions can lead to a considerable loss of hydrogen, with 10-50% of hydrogen being consumed in the methanation reaction. This phenomenon is considered a significant hurdle in the practical implementation of hydrogen storage technologies, and a carful microbial analysis of the existing brine is a crucial step to be considered during the initial stage of screening process. Here, we present a reactive transport model on a field-scale level to enhance the comprehensive characterization of hydrogen behavior and its ultimate fate within reservoir systems. Our investigation addresses the extent of hydrogen loss attributable to biochemical reactions.
Gas Reserve Estimation and Performance Prediction of a Fracture-Dominated Unconventional Reservoir Using Weibull Model
Authors: Mohammed Shaibu , Boakye-Ansah Yaw Akyampon
Published: August 2024

Gas-in-place estimation and fractured gas-well performance prediction are crucial for determining the effectiveness of hydraulic fracture treatment and making technical and economic decisions. Existing empirical models have been used to analyze both oil and gas wells regardless of whether they are exponential decline-based or stretched exponential decline-based. Furthermore, estimation of the parameters of Weibull model is currently carried out on a trial-and-error basis.

In this paper, the Weibull model is used to analyze and predict the performance of a fractured gas well depleting an unconventional reservoir. We demonstrate that the Weibull model can be linearized, with cumulative production as the independent variable and thus allowing the determination of estimated ultimate recovery. Furthermore, probabilistic estimates (P10, P50, and P90) of Barnett shale gas wells are presented. The proposed analysis method uses performance data (rate-cumulative-time data) and circumvents any iteration schemes. Numerical and field data have been used to validate and demonstrate the applicability of the analysis method.

Transient-decline exponent is related to the shape parameter of the Weibull model; consequently, the shape parameter can be estimated during the transient state. However, the scale parameter cannot be estimated until boundary-dominated flow is reached. Although the scale parameter gives an indication of the time at which 63.2% of the gas-in-place has been recovered, it does not suggest the onset of boundary-dominated flow.

The Weibull model is suitable for analyzing a fractured gas-well performance, but not oil-well performance. While oil-well performance is amenable to an exponential decline, not all gas-well performances exhibit an exponential decline. This paper contributes to the existing techniques for estimating gas reserve and predicting the performance of a fracture-dominated unconventional gas reservoir.
An Automated Machine Learning and Analytics Framework for Data-Driven Optimization of Multi-Source Regional Energy Systems
Authors: Ajibade A. A. , Okai M. I. , Okon P. E. , Golagha O. G.
Published: August 2024

With rising energy demands and sustainability goals, optimizing a region's energy mix is critical but challenged by data complexities. Existing solutions face limitations in siloed data sources, inaccurate forecasting, static visualizations, and manual modelling workflows. This pioneering research develops ENERLIZER, the first open-source solution to integrate real-time data analytics and machine learning for end-to-end automated insights into robust multi-energy optimization. This solution is developed on the Streamlit framework and leverages integration with real-time databases to enable continuous operationalization and rapid adaptation. It provides an intuitive interface that transforms raw dataset inputs through customized pipelines. Automated descriptive analytics and aggregations are performed using Pandas. Custom XGBoost Models enable precise energy generation and demand forecasting tailored to the data. Interactive location-based visualizations are generated using Plotly. Validated using data from Spain's energy portfolio from 2015-2018, ENERLIZER delivers more than 600% reduction in analysis time versus conventional manual methods, while improving forecast accuracy. Comprehensive analytics and visualizations provide holistic insights for robust optimization. By pioneering real-time integrated data analytics, machine learning and automation, ENERLIZER breakthroughs key limitations in current energy optimization approaches. This enables more rapid, accurate and holistic data-driven decision-making for strategic energy mix planning and management.
Influence of Surface Modification on the Oil Recovery of Iron Oxide Nanoparticles Under Reservoir Conditions
Authors: Yakasai F. , Jaafar M. Z. , Sidek M. A. , Nwaichi P I. , Ridzuan N. , Mahat S. Q. A. , Abbas A. H. , Ngouangna E. , Gbadamosi A. , Oseh J. O. , Gbonhinbor J. , Agi A.
Published: August 2024

Iron oxide nanoparticles (IONPs) show promise as advanced materials for enhanced oil recovery (EOR) due to their distinct physicochemical properties. However, their tendency to quickly clump together in reservoir brine, driven by the need to reduce high surface energy, poses a significant challenge. This aggregation results in reduced stability and the loss of desirable properties, ultimately impeding effective oil recovery. This study addresses these challenges by examining how functionalizing IONPs with 3-aminopropyltriethyloxysilane (AIONPs), tetraethyl orthosilicate (SIONPs), and a combination of both (ASIONPs) enhances their physicochemical characteristics to facilitate oil recovery in reservoir conditions. The nanoparticles were synthesized and modified in the laboratory, with confirmation of synthesis and functionalization achieved through analyses using high-resolution transmission electron microscopy (HRTEM), energy dispersive X-ray analysis (EDX), X-ray diffraction (XRD) and Thermogravimetric analysis (TGA). To accurately simulate reservoir conditions, actual reservoir cores and high-temperature, high-pressure (HTHP) core flooding equipment were used to evaluate the oil recovery of the resulting nanofluids (NFs). Visual sedimentation investigations of NPs in distilled water, low and high electrolyte concentrations revealed that APTES functionalization of IONPs and SIONPs reduced sedimentation of IONPs in the reservoir, especially in high electrolyte conditions. Under reservoir conditions (25,000 ppm, 2400Psi, 120°C), the respective oil recovery percentages for ASIONFs, SIONFs, AIONFs, and IONFs were found to be 14.6%, 13.8%, 18.3%, and 4.8%. These comprehensive findings significantly contribute to our understanding of how functionalization influences the oil recovery efficiency of IONPs in reservoir settings.
Predictive Modeling of Daily Oil Production Volume Using Pressure-Dependent Parameters: A Machine Learning Approach and Web App Implementation
Authors: Ajibade A. A. , Okafor I. S , Ogolo O. , Golagha O. G.
Published: August 2024

This paper presents the development of a machine learning model for predicting daily oil production volume in barrels (bbl) based on pressure-related data. The Volve field production data from 2008 to 2016, operated by Equinor, was used for training and testing the model. An exploratory data analysis was conducted to identify outliers and anomalies in the dataset, and the most relevant features for the prediction task were selected based on statistical methods and domain knowledge. The selected features included pressure-related parameters such as average downhole pressure, average production tubing size, average annulus pressure, average choke size in percentage, average wellhead pressure, production choke size, and onstream hours. To prevent overfitting and bias, features with high correlation were identified and dropped, and the remaining features were evaluated using Mutual Information (MI) scores. Various algorithms, including Convolutional Neural Networks (CNN), Feed-Forward Neural Network (FNN), Linear Regression (LR), XGBOOST, and Long Short-Term Memory (LSTM) Networks, were tested for training and evaluating the predictive performance of the model. The LSTM model outperformed the other models with an average metric score of 104, demonstrating superior ability to generalize trends and learn minimal signals. The model was then deployed on a web app for the prediction of oil production volume based on pressure-related data. The Mean Absolute Error (MAE) and Root Mean Squared Error (RMSE) were used as metrics to evaluate the performance of each model. The results indicate that the developed machine learning model is highly effective for predicting daily oil production volume using pressure-related data. This approach has the potential to significantly improve production optimization in the oil and gas industry, offering a robust and reliable tool for operational decision-making.
1D Pore Pressure and Geomechanics Models for Infill Well Drilling Optimization in CN Field, Offshore Niger Delta
Authors: Chukwudi N. I. , Nwakanma A. , Sofolabo A. O. , Mogaba P.
Published: August 2024

One of the significant challenges of hydrocarbon exploration especially in drilling campaigns is inaccurate well placement, leading to drilling unproductive wells and economically unviable opportunities in globally recognized petroleum-rich basins especially in our Niger Delta Basin, where since the effect of out-break of the global pandemic, drilling activities has decreased because of a whole lot of challenges. It is therefore of paramount importance to understand subsurface behaviour in planning wells, especially in a tectonically complex environment. The objective of the study is to employ pore pressure analysis and using geomechanics to evaluate wellbore stability in predicting mud-weight window and incorporating best practicing for accurate well placement to ensure minimum drilling risk and further reducing non-productive time (NPT). The workflow exploited five (5) parent wells investigating for the cause of overpressure in the field, building NCT and Overburden models, before estimating P10, P50, and P90 pore pressure models for the field. These models were also instrumental in estimating collapse pressure, shear failure gradient, maximum horizontal stress (SHmax) and fracture pressure/minimum horizontal stress (Shmin). From the offset wells using empirical relations suited for the field, 1D geomechanical model was constructed resulting in poisson's ratio (PR), unconfined compressive stress (USC), and friction angle (FA). Results from the pore pressure and geomechanics models informed our mud-weight selection, and to analyze wellbore strength prior to troublesome intervals. The mohr coulomb plot investigated the region of stability using the principal stresses, which revealed that at the understudied depths the well will not fail, further boosting our drilling confidence. From the study, the model boosted the analysis of the bedding plane failures, integrating a simulation of the existing stress profile. The analysis revealed the optimum mud-weight required to drill especially in reservoir depleted intervals. Consequently, future well placement and drilling can be done with minimal damage to the reservoir with negligible significance to wellbore instability concerns.