bluuebunny/crossref_metadata_2025_split huggingface dataset:
Enhancing dynamic security assessment in converter dominated distribution networks through digital twin-based small signal stability analysis
Authors: Cai Hui , Westermann Dirk 
Published: November 2023

Abstract
As renewable energy sources are increasingly integrated and distributed in the power system, the number of converters in the grid is growing. This leads to more and more dynamics in the distribution networks and may result in more frequent disturbances such as voltage fluctuations, power quality problems, etc. To prevent possible threats to the security and stability of the network due to the above issues, Dynamic Security Assessment (DSA) is necessary for a distribution network to ensure its safe and reliable operation. In this work, an innovative approach to DSA using Digital Twin (DT) technology, with a primary focus on small signal stability (SSS) analysis using an eigenvalue method is proposed. The DT of the distribution network is first constructed by incorporating machine learning algorithms and updated in real-time using data from sensors and SCADA systems to accurately represent the behaviour of the physical system. The DT will be used to continuously monitor and assess the stability of the distribution network characterised by the presence of power electronic converters. The DSA then uses SSS to analyse network behaviour under different operating conditions and identify potential risks or disturbances. This can include assessing the impact of sudden changes in load or renewable energy output, detecting potential faults or equipment failures, and identifying potential instabilities in the power system. Numerical case studies are used to verify the viability of the proposed approach. As a result, by integrating a DT into the DSA process for converter-based distribution networks, operators can improve the accuracy and efficiency of their security measures, reduce the risk of outages, and increase the overall reliability of the system.
DC voltage ancillary controller for dynamic security of shunt-compensated microgrids
Authors: Maier Cocco Gabriel , Ecke Bisogno Fábio , Figueiredo de Camargo Robinson , Glende Eric , Wolter Martin 
Published: November 2023

Abstract
Modern power systems require special features from the distributed energy resources especially to meet the power quality and dynamic security. The distribution static synchronous compensator (DSTATCOM) has a safe DC voltage operating range that is often unexplored. Self-excited induction generators (SEIGs) with a shunt DSTATCOM is a well-known solution for low-power, low-cost generation. These systems may have poor robustness against surges and contingencies. This paper proposes an ancillary controller as a supplement in the shunt compensation of an off-grid distributed generation system powered by SEIGs. The controller consists of a variable structure that uses an adequate DC bus capacitor voltage range to provide fast frequency response (FFR) with soft recovery. The control performance for fault rejection is evaluated as well as for load disturbances and generation contingency. Simulation results are presented to demonstrate system operation and compensator performance.
Hypothalamic-pituitary dysfunction in Sturge–Weber syndrome: case report and review of the literature
Authors: Hadid Somar A. , Noor Laila , Baer Tamar , Jacobson Ronald I. , Brutsaert Erika 
Published: November 2023

Abstract

Objectives
Sturge–Weber syndrome (SWS) is a rare neurocutaneous disorder that is characterized by a segmental dermatomal facial port-wine stain birthmark and is frequently accompanied by ipsilateral brain and eye abnormalities. We present a case of a patient with SWS who exhibited hypogonadotropic hypogonadism, growth hormone (GH) deficiency, and central hypothyroidism at the age of 20 despite the absence of radiographic findings in the pituitary and hypothalamus.

Case presentation
A 20-year-old male with SWS with epilepsy and Klippel–Trenaunay syndrome presents with delayed pubertal development, short stature, and obesity. Upon further examination, he was found to have biochemical and clinical evidence of hypogonadism, hypothyroidism, and GH deficiency. A pituitary MRI displayed no abnormalities of the pituitary or hypothalamus. Treatment with testosterone cypionate and levothyroxine was initiated. Despite successful pubertal induction, IGF-1 levels have remained low and treatment with recombinant human growth hormone (rhGH) is now being considered for metabolic benefits.

Conclusions
This case emphasizes the importance of endocrine evaluation and treatment of hormonal deficiencies in patients with SWS despite the absence of radiographic findings.
Mature Cystic Teratoma with Squamous Cell Carcinoma-Rare Case Presentation
Authors: Gopika Kannan  , C.P. Luck  , Sarah Kuruvilla  , B. Sangeetha  
Published: November 2023

Introduction: Mature cystic teratomas are part of a subclass of ovarian germ-cell tumour believed to arise from the primordial germ cells. Ovarian germ-cell tumours account for around 20–25% of ovarian neoplasms and 5% of ovarian cancers. A secondary malignant transformation of the various tissue components of mature cystic teratoma can occur, typically in postmenopausal women. More than 80% of malignant transformations are squamous-cell carcinomas arising from the ectoderm; the rest are carcinoid tumours or adenocarcinomas. Methods and Methodology, Case Report: A 40-year-old postmenopausal patient came with lower abdominal pain past 2 months. The patient was submitted to a gynecological examination and to transvaginal ultrasound, which confirmed the presence of right adnexal mass measuring 11×8x 2 cm; the mass proved to have cystic features in association with intracystic fat, raising the suspicion of an ovarian teratoma. In addition, areas of acoustic shadowing were discovered, raising the suspicion of a Rokitansky nodule exhibiting solid components such as hair and teeth. Pelvic CT scan demonstrated right adnexal dermoid cyst causing mild hydroureteronephrosis. A total hysterectomy with bilateral adnexectomy was performed, and the specimen was submitted for histopathological examination. Histopathological examination revealed Mature Cystic Teratoma with Squamous Cell Carcinoma. Discussion: Ovarian teratoma develops from germ cells and might present different cellular types originating from one or more of the germ layers, represented by endoderm, ectoderm and mesoderm. Of this malignant transformation is about 1- 2 %. Malignant transformation of ovarian teratoma can arise from any type of germ cell that is present at the level of these tumors; therefore, adenocarcinomas, squamous cell carcinomas, sarcomas, melanomas, adenosquamous carcinomas or even carcinoid tumors might occur. Of this squamous cell carcinoma is common. Conclusion: Although ovarian teratomas are frequently encountered, a small proportion of them will develop further complications, such as infection or malignancy. In cases in which malignant transformation occurs, squamous cell carcinoma is the most commonly encountered type of malignancy. Novelty: Malignant transformation of mature cystic ovarian teratoma is a scarce eventuality, only rare cases being reported so far. Furthermore, the development of this transformation in the setting of an abscessed tumor is even scarcer
Development and Validation of Physical Education Awareness Instrument (Pea-I)
Authors: Suchishrava Dubey  , Prashant Kumar Choudhary  , Megha Sahu  
Published: November 2023

Research Background: The importance of physical education in the development of young children has long been recognized. Despite this, there is a lack of a standardized instrument to accurately measure awareness of physical education among this demographic. The absence of such a tool hampers our understanding of children's perceptions and the impact of physical education on their overall well-being. Purpose: The primary objective of this study is to develop and validate the Physical Education Awareness Instrument (PEA-I) to assess young children's awareness of physical education. Through rigorous statistical techniques, including factor analysis and reliability assessment, the study seeks to establish the validity and reliability of the newly developed instrument. Materials and Methodology: The study involved 817 participants, randomly divided into two groups. The researchers utilized the expectation-maximization (EM) algorithm to handle potential missing values, although none were found in the collected responses. The first half of the sample (N = 317) underwent exploratory factor analysis (EFA) using IBM SPSS 26 for Windows. Latent root criteria and the Kaiser-Meyer-Olkin (KMO) index determined the optimal number of factors, indicating significant adequacy for principal component analysis (PCA). The EFA revealed a one-factor scale, with nine items demonstrating strong internal consistency (Cronbach's alpha ranged from 0.740 to 0.796). Statistical Procedure: Following the EFA, confirmatory factor analysis (CFA) was conducted on the second half of the sample using AMOS 23. All items in the CFA met the standard criterion, confirming the instrument's acceptable factor validity. The (PEA-I) exhibited good reliability and validity, establishing it as a robust tool to assess young children's awareness of physical education. Results: The results solidify the PEA-I as a valid and reliable measure of physical education awareness among young children. Its factor loadings, internal consistency, and factor validity indicate its effectiveness in assessing individuals' perceived awareness of physical education accurately. Conclusion and practical implication: The (PEA-I) has practical implications, serving as a valuable tool for identifying individuals' awareness of physical education and evaluating the effectiveness of physical education programs. Its potential to aid policymakers, physical educators, and health professionals is significant, as it emphasizes the importance of physical education in overall well-being and advocates for its inclusion as a compulsory subject in schools. This study contributes substantially to the field, underscoring the significance of physical education in fostering healthier lifestyles and well-rounded individuals. The findings highlight the need for increased awareness and the positive impact of physical education on youth development, shaping the discourse on its promotion among policymakers, educators, and health professionals.
Serum Magnesium and Its Association with Vascular Calcification in Chronic Kidney Disease Patients on Haemodialysis
Authors: Prasanna K. B.  , Sharavanan T. V. K.  , Ekanthalingam S.  , Kannan I.  
Published: November 2023

Background: Cardiovascular disease is one of the leading causes of death in chronic kidney disease (CKD). It has been observed that haemodialysis patients have a high prevalence of cardiac risk factors with further risk due to abnormal mineral metabolism. A study has demonstrated that a higher serum magnesium significantly decreased the mortality risk in haemodialysis patients and lower serum Mg level has been found to be associated with increased mortality in them. The aim of the study was to characterize the relationship between Mg level and vascular calcification in CKD patients.
Methods: It was a cross sectional study conducted in 100 CKD patients attending outpatient and inpatient ward of Tagore Medical College and Hospital, Chennai, Tamil Nadu, India. Serum magnesium levels will be measured using Xylidyl blue method. Carotid intimal medial thickness will be measured using Doppler.
Results: In the study 10 patients did not show the sign of any calcification. Among the remaining 90 patients, 42 patients showed calcification and 48 patients showed stenosis. The statistical analysis showed a spearman correlation coefficient value of 0.201 thus showing only a weak association.
Conclusion: The present study showed that only a weak relationship exists between the magnesium level and vascular calcificatio..
VULCANISMO CENOZOICO EN LA SABANA DE BOGOTÁ
Authors: Vergara Jaime Galvis , De la Espriella Ricardo , Cortés Delvalle Ricardo 
Published: November 2023

La sabana de Bogotá constituye un amplio valle interandino, notablemente ramificado, con rasgos geomorfológicos y geológicos que no han sido completamente explicados. Uno de estos rasgos ha sido la amplísima cubierta de suelos originados en material volcánico. A esto se le han dado dos explicaciones diferentes: la primera explicación asumía que la cubierta tobácea de la sabana debía provenir de los volcanes más próximos de la Cordillera Central, los cuales se encuentran a unos 150 kilómetros de distancia. Esto paulatinamente fue descartado considerando la notable diferencia petrográfica entre las vulcanitas de la Cordillera Central y las piroclastitas de la sabana. La segunda explicación ha considerado que los depósitos piroclásticos de la sabana provienen de los focos volcánicos de Paipa e Iza, departamento de Boyacá, situados a 150 kilómetros de distancia.
En el presente artículo se demuestra que las piroclastitas en mención se originaron en focos volcánicos situados dentro de la misma sabana de Bogotá y que dicho evento efusivo tuvo una magnitud mayor que el de Boyacá y más aún, que constituye su continuación hacia el sur.
MEMBENTUK KEMBALI KOMISI KEBENARAN DAN REKONSILIASI DI INDONESIA
Authors: Nata Reyhan Rezki , Husodo Jadmiko Anam 
Published: November 2023

<p><em>The purpose of this legal research is to analyse the political law of Indonesia on settlement of serious human rights violations, especially with The Truth And Reconcilliation Commission. This research is a descriptive normative legal research type. Types of data consist of primary data and secondary data. Using primary data collection secondary data using literature study techniques. This research use the Qualitative data analysis techniques. A Truth and Reconciliation Commission shall be established to address impunity, break the cycle of violence, provide a forum for the parties of human rights violations to tell their story, get a clear accurate, clear and comprehensive picture of the past in order to facilitate genuine healing and reconciliation. The late progress of this commission, contributed directly or nondirectly to delayed our progress toward the bright future of this nation.</em></p><p><em> </em></p>
PENGARUH PUTUSAN MAHKAMAH KONSTITUSI NOMOR 33/PUU-XIII/2015 DIKAITKAN DENGAN PEMBATASAN POLITIK DINASTI PADA PEMILIHAN KEPALA DAERAH
Authors: Dewi Septya Hanung surya , Riwanto Agus 
Published: November 2023

<p align="center"><em>This thesis examines and describes effect of The Constitutional Court Decision Verdict No. 33/PUU-XIII/2015 concerning the restiction of political dynasty on regional chief election and whether the verdict has been appreciate with Constitution of Indonesia, UUD NRI 1945.This research is normative legal research which is descriptive. The result of this research shows that 1) the effect after constitonal court verdict No. 33/PUU-XIII/2015 resulted in article 7 letter r of Law Number 8 of 2015 having no binding legal force and having an impact of implementing regulating under it, as well as creating a conflict of interest. The implemention of regional chief election if there is a conflict of interest resulting in unequal competition, affect the accountability of local elections, political dynasty, and political corruption. However, if there are no conflict of interest, the implementation of local election run smoothly with a strict supervison of all instrumen. 2) the constitutional court verdict No. 33/PUU-XIII/2015 is not according with mandate of Constitution of Indonesia, UUD NRI 1945 Article 28J paragraph (2) and Article 18 paragraph (4) are related to improving the quality of democracy in regional elections.</em></p><p> </p><p><strong><em> </em></strong></p>
IMPLEMENTASI UNDANG-UNDANG NOMOR 6 TAHUN 2014 TERKAIT DENGAN PENGELOLAAN KEUANGAN DESA UNTUK PEMBIAYAAN PEMBANGUNAN
Authors: Febrianti Hasna Tsani , Achmad . 
Published: November 2023

<p>Penelitian ini menganalisis dan mengkaji tentang pengelolaan keuangan desa sebagai wujud pelaksanaan dari peraturan perundang-undangan desa. Penelitian hukum ini menggunakan penelitian empiris yang bersifat deskriptif dan menggunakan pendekatan kualitatif yang menghasilkan data deskriptif analisis pada Desa Adirejakulon di Kabupaten Cilacap. Sumber data yang diperoleh adalah sumber data primer dan data sekunder. Teknik pengumpulan data dalam penelitian ini yaitu wawancara dan observasi. Penelitian ini menunjukkan hasil yang diperoleh bahwa dalam pengelolaan keuangan desa untuk pembiayaan pembangunan telah melaksanakan tahap perencanaan, pelaksanaan, penatausahaan, pelaporan dan pertanggungjawaban, dalam pengelolaan keuangan aparat desa Adirejakulon dibantu oleh pihak ketiga yaitu pendamping desa serta adanya pembinaan dan pengawasan yang dilaksanakan oleh Dispermades, Camat dan BPD. Hambatan yang dihadapi adalah: 1) sumber daya manusia; 2) keterlambatan realisasi turunnya dana desa; 3) perubahan secara terus menerus peraturan menteri keuangan tentang pengelolaan dana desa; 4) keadaan luar biasa yang menyebabkan perubahan anggaran belanja dan pendapatan desa mengalami perubahan akibat pandemi Coronavirus Disease that was discovered in 2019 atau disebut COVID-19; dan 5) kurangnya pengawasan dana desa dari lembaga tinggi negara.</p>
BENTUK TANGGUNG JAWAB NEGARA DALAM PEMBERIAN BANTUAN HUKUM KEPADA MASYARAKAT MISKIN
Authors: Putri Michele Aprilia Nugraha , Riwanto Agus 
Published: November 2023

<p>Penulisan hukum ini bertujuan untuk menganalisis mengenai bentuk tanggung jawab negara dalam memberikan bantuan hukum kepada masyarakat miskin yang didasarkan pada Undang – undang Nomor 16 Tahun 2011 Tentang Bantuan. Penelitian yang dilakukan merupakan penelitian hukum normatif yang bersifat deskripsi analitis dengan metode pendekatan perundang-undangan dan pendekatan konseptual. Berdasarkan hasil penelitian diperoleh bahwa Bentuk Tanggung Jawab Negara dalam pemberian bantuan hukum yaitu dalam perkara Pidana, Perdata dan Tata Usaha Negara baik secara litigasi ataupun non litigasi yang pedanaannya bersumber dari Anggaran Pendapatan Belanja Negara baik pemerintah pusat maupun pemerintah daerah yang dalam hal ini UU Bantuan Hukum memberikan kewenangan kepada pemerintah daerah dalam pengelolaan bantuan hukum dengan peraturan daerah.</p>
ANALISIS KEPEGAWAIAN LEMBAGA NEGARA INDEPENDEN DALAM MENUNJANG GOOD GOVERNANCE (Studi Kasus Komisi Pemberantasan Korupsi)
Authors: Zuhad Zakky Musthofa 
Published: November 2023

<p>Penelitian ini bertujuan mengidentifikasi dan menganalisis kepegawaian Komisi Pemberantasan Korupsi sebagai Lembaga Negara Independen dalam Menunjang Good Governance. Metode penelitian yang digunakan adalah penelitian yang bersifat desrkiptif analitis dengan pendekatan perundang-undangan, konseptual, dan perbandingan. Jenis dan sumber hukum pada penelitian ini menggunakan bahan hukum primer dan sekunder dengan Teknik pengumpunan melalui studi dokumen. Teknik analisisnya menggunakan teknis analisis bahan hukum dengan metode penalaran logika deduktif.</p><p>Hasil penelitian ini menemukan bahwa ada kemunduran KPK dalam mewujudkan independensi pegawainya dalam cerminan Lembaga negara independen berdasarkan teori dan prinsip good governance dan pemisahan kekuasaan. Atas perubahan UU 30 Tahun 2002 oleh UU No. 19 Tahun 2019 menyebabkan berubahnya status pegawai KPK menjadi aparatur sipil negara dan masuknya KPK pada rumpun kekuasaan eksekutif. Hal ini menyebabkan KPK dapat diintervensi oleh kekuasaan lain dalam mengatur dan mengelola manajemen sumber daya manusia-nya karena pengelolaannya di-regulasikan dengan peraturan perundang-undangan terkait ASN. KPK dapat melihat ICAC Hongkong sebagai contoh lembaga yang bentuk dan postur kepegawaiannya bersifat independen. MACC Malaysia dapat menjadi pembelajar bagaimana kekuasaan eksekutif dapat memengaruhi independensi pegawai dan kelembagaannya. Untuk membangun hukum ideal kepegawaian KPK membutuhkan political will dari DPR dan MPR untuk mengembalikan KPK pada bentuk idealnya.</p><p> </p><p> </p>
Flow Control Device and Liner Floatation: Key Technology Driver in Extreme Extended Reach Shallow Steam Assisted Gravity Drainage Wells
Authors: Izadi H. , Roostaei M. , Mahmoudi M. , Stevenson J. , Tuttle A. , Bustamante G. , Rhein Sh , Sutton C. , Mirzavand R. , Leung J. V. , Fattahpour V. 
Published: November 2023

Abstract
Pursuing more cost-effective well construction and reduced surface footprint has prompted Western Canadian operators to explore extreme extended reach drilling (ERD) wells. However, this endeavor faces a critical challenge: most heavy oil reserves are relatively shallow, resulting in the unwrapped reach ratio (the total horizontal length when projected on the horizontal plane to true vertical depth (TVD)) of more than seven. Therefore, to drill ERD wells, two crucial technical challenges must be tackled: successful liner installation, and efficient steam distribution along these long laterals to enhance production.
This paper delves into the solutions for these challenges and a case study showcasing the recent drilling of a steam-assisted gravity drainage (SAGD) extreme ERD well. While floating liners are a known method for extending well reach, they are uncommon in SAGD wells. However, some companies have started exploring the use of floating liners in SAGD projects due to their potential to greatly expand lateral well length, reducing footprint and increasing the oil recovery from any one well pair. By floating the liner using plugged flow control devices (FCDs), gentler running procedures can be employed to achieve TD without risking the integrity of the liner. Moreover, utilizing FCDs in floating liners improves steam conformance and oil production while reducing the cumulative steam oil ratio (cSOR) during the production phase.
Modeling results can enhance our capabilities in planning shallower SAGD wells with longer productive sections in the future, with (as described herein) horizontal liner lengths of 1700m and true vertical depths of 240m. The modeling results show that floating liners using plugged FCDs reduce torque by an average of 22% and bottom hole torque by 28%, while also decreasing drag by 16% on average, and bottom hole drag by 17%. These findings indicate that floating liners with plugged FCDs offer a promising solution for SAGD and CSS extreme ERD wells limited by liner installation forces. Furthermore, wells with FCDs in uplifted cases displayed a remarkable upswing of 57%, while concurrently, cSOR demonstrated a noteworthy decrease of 18%. Uplifted cases are identified when wells were completed or retrofitted with FCDs and showed increased oil production compared to neighboring wells.
The successful implementation of floating liners with dissolvable or meltable plugs on FCDs enhances confidence in future SAGD extreme ERD wells. The implementation of FCDs in extreme ERD well designs could contribute to reduced greenhouse gas (GHG) emissions, aligning with efforts to combat climate change and minimize environmental impacts. The study's findings elaborated on driving paradigm shifts in the development of heavy oil resources as technology advances, while considering economic factors.