bluuebunny/crossref_metadata_2025_split huggingface dataset:
Application of locally regularized extremal shift to the problem of realization of a prescribed motion
Authors: Osipov Yury S. , Maksimov Vyacheslav I. 
Published: June 2024

Abstract
A controlled system of differential equations under the action of an unknown disturbance is
considered. The problem discussed in the paper consists in constructing algorithms for forming a control that
provides the realization of a prescribed motion for any admissible disturbance. Namely these algorithms should
provide the closeness in the metric of the space of differentiable functions of a phase trajectory of a given
controlled system and some etalon trajectory of an analogous system functioning when any outer actions are absent.
As the space of admissible disturbances, we take the space of measurable square integrable (with respect to the
Euclidean norm) functions. The cases of inaccurate measurements of phase trajectories of both systems at all times
and at discrete times are under study. Two computer oriented algorithms for solving the problem are designed. The
algorithms are based on the (well-known in the theory of guaranteed control) method of extremal shift. In the
process, its local (at each time of control correction) regularization is performed by the method of smoothing
functional (the Tikhonov method). In addition, estimates for algorithm’s convergence rate are presented.
Influence of betel nut fiber hybridization on properties of novel aloevera fiber-reinforced vinyl ester composites
Authors: Rasu Karthick , Veerabathiran Anbumalar 
Published: June 2024

Abstract
This work presents the influence of betel nut fiber hybridization on the properties (mechanical, thermal, wear, and water absorption) of novel aloevera fiber-reinforced vinyl ester composites. In this research, we fabricated the composites by changing the wt.% of aloevera fiber and betel nut fiber through the hand layup method using the compression molding technique. From the results, it has been observed that increases in wt.% of betel nut fiber increased the mechanical properties, thermal properties, wear resistance, and water resistance of the composites. The composite with the designation S1 shows the lowest hardness, tensile, flexural, impact, and shear strengths of 49.58, 26.59 MPa, 52.53 MPa, 4.12 J, and 101.26 MPa, respectively. Meanwhile, the composite with the designation S5 shows the highest hardness, tensile, flexural, impact, and shear strengths of 71.29, 62.61 MPa, 78.24 MPa, 9.57 J, and 139.52 MPa, respectively. Further, higher wear resistance and water resistance were obtained by the S5 specimen. SEM analysis shows the good strength of betel nut fiber and enhances the tensile strength of the composites.
Modeling the strength parameters of agro waste-derived geopolymer concrete using advanced machine intelligence techniques
Authors: Al-Naghi Ahmed A. Alawi , Amin Muhammad Nasir , Khan Suleman Ayub , Qadir Muhammad Tahir 
Published: June 2024

Abstract
The mechanical strength of geopolymer concrete incorporating corncob ash and slag (SCA-GPC) was estimated by means of three distinct AI methods: a support vector machine (SVM), two ensemble methods called bagging regressor (BR), and random forest regressor (RFR). The developed models were validated using statistical tests, absolute error assessment, and the coefficient of determination (R
2). The importance of various modeling factors was determined by means of interaction diagrams. When estimating the flexural strength and compressive strength of SCA-GPC, R
2 values of over 0.85 were measured between the actual and predicted findings using both individual and ensemble AI models. Statistical testing and k-fold analysis for error evaluation revealed that the RFR model outperformed the SVM and BR models in terms of accuracy. As demonstrated by the interaction graphs, the mechanical characteristics of SCA-GPC were found to be extremely responsive to the mix proportions of ground granulated blast furnace slag, fine aggregate, and corncob ash. This was the case for all three components. This study demonstrated that highly precise estimations of mechanical properties for SCA-GPC can be made using ensemble AI techniques. Improvements in geopolymer concrete performance can be achieved by the implementation of such practices.
Hydrothermal syntheses, structures and properties of two zinc complexes based on an azobenzene carboxylate ligand
Authors: Zhang Mou-Yi , Guan Lei 
Published: June 2024

Abstract
Two zinc complexes [Zn(LH)2(phen)] (1) and [Zn(L)(H2O)]
n
(2) (LH− = 2-hydroxy-5-((3-nitrophenyl)azo)-benzoate, phen = 1,10-phenanthroline) were synthesized by hydrothermal methods and characterized by elemental analysis and IR spectroscopy. Complexes 1 and 2 crystallize in mononuclear and polymeric structures, respectively, where ligands L
2− are coordinated to the zinc ions via their carboxylate and phenolate groups in η
2,μ
2,κ
2 and η
2,μ
2,κ
1 mode, respectively. Introduction of the auxiliary chelating phen ligand results in the chelation of the zinc ions in 1 through both the phen ligand and the carboxylate group of the first LH− anion assisted further by the monodentate carboxylate group of the second LH− anion. In complex 2 the L
2− anions act as tridentate ligands utilizing their carboxylate and phenolate groups to coordinate to three zinc ions. The phenolate oxygen atom bridges two zinc ions resulting in the generation of a layer structure. Fluorescence measurements have indicated that complexes 1 and 2 exhibit similar luminescence emissions around 393 and 387 nm, respectively, which originate from intra-ligand π-π* transitions. The emission intensities were strengthened relative to the sodium complex NaLH owing to the enhancement of the rigidity of the aromatic system through the coordination interactions of the ligands with the more tightly bound zinc ions. Furthermore, the suspension of complex 2 can be used to selectively detect Fe3+ cations via the luminescence quenching process.
A New Training Load Quantification Method at Supramaximal Intensity and Its Application in Injuries Among Members of an International Volleyball Team
Authors: Bouzigues Théo , Maurelli Olivier , Imbach Frank , Prioux Jacques , Candau Robin 
Published: June 2024

Abstract
Bouzigues, T, Maurelli, O, Imbach, F, Prioux, J, and Candau, R. A new training load quantification method at supramaximal intensity and its application in injuries among members of an international volleyball team. J Strength Cond Res 38(8): 1453–1463, 2024—The quantification of training loads (TLs) is essential for optimizing jump performance and reducing the occurrence of injuries. This study aimed to (a) propose a new method for quantifying TLs in explosive exercises, (b) determine the nature of the relationship between TLs dynamics and injury occurrence, and (c) assess a TLcritical for training schedule purposes, above which the risk of injury occurrence becomes unacceptable. This study was conducted with 11 male volleyball players on a national team during a 5-month international competitive period. The proposed new method for quantifying TLs is based on a weighting factor applied to relative jumping intensities, determined by the number of sustainable jumps and their intensities measured by G-Vert accelerometer. The relationship between TLs dynamics and injury occurrence was assessed using a variable dose-response model. A high coefficient of determination was found between the maximum number of jumps possible and their intensities (r
2 = 0.94 ± 0.14, p < 0.001), indicating a strong physiological relationship between jumping intensities and the constraints imposed. The occurrence of injury was dependent on TLs dynamics for 2 players (r
2 = 0.26 ± 0.01; p < 0.001). The TLcritical corresponded to 11 jumps over 80% of maximum jump height during games and approximately 130 jumps at <80% of maximal jump height. The present study proposes a new approach for quantifying supramaximal exercises and provides tools for training schedules and the prevention of volleyball injuries.
Effect of Process Parameters on Immobilization of Recombinant Escherichia coli on Coconut Fiber
Authors: Che Man Rohaida , Abdul Mudalip Siti Kholijah , Abdul Manas Nor Hasmaliana , Sulaiman Siti Zubaidah 
Published: June 2024

Escherichia coli (E. coli) is the earliest and most widely used host to produce recombinant proteins, one such example being cyclodextrin glucanotransferase (CGTase) which has found application in numerous industries such as food, environmental engineering and pharmaceutical. The recombinant protein in E. coli was applied to overcome the low output of CGTase from Bacillus species such as Bacillus lehensis and Bacillus licheniformis. However, cell lysis and plasmid instability have been some of the stumbling blocks during the production of recombinant protein in E. coli. Therefore, cell immobilization has been proposed as a way to increase CGTase production while maintaining high cell stability. The objective of this study is to immobilize recombinant E. coli on coconut fiber. The effect of the process parameters, namely pH level (5, 6, 7, 8, and 9), contact time (12, 15, 18, 21, 24, and 27 hours), and temperature (20, 25, 30, 35, and 40 °C), towards the immobilization of recombinant E. coli onto coconut fiber was studied. The optimal pH resulted in the highest immobilization yield was pH 8 (58.90%). The best contact time for the highest immobilization yield (57.59%) was 24 hours. The optimum temperature was identified at 25 °C with immobilization yield of 58.78%. Hence, the optimum conditions could improve the immobilization of recombinant E. coli on the carrier and the coconut fibre was an appropriate carrier material for cell immobilization process for the high CGTase production with high cell stability.
“Pohulianka”: The Origin of the Name of the Western Suburb of Vilnius and the Change of Boundaries in 1790–1940
Authors: Ambrulevičiūtė Aelita 
Published: June 2024

The article examines the origin of the name “Pohulianka”, the western suburb of Vilnius, and establishes the chronology of the usage of this name from the first mentions in city plans to its disappearance from the topography of the city due to the Lithuanianization of urbanonyms in 1939–1940. Based on cartographic and written sources, the dynamics of the suburb boundaries are analyzed in the context of the changing urban name in 1790–1940.
Multi-sited Ethnography on a Nexus in Religioscape
Authors: Reuter Evelyn 
Published: June 2024

This article focuses on how and why to investigate shared religious places with the methodological approach of multi-sited ethnography. Places can be considered as interconnected nexuses in space that reveal social relations. In consequence, shared religious places are nexuses where various religious traditions manifest. Several places are connected by various religious groups, for example by visiting and building a network within the religioscape of a region. Researchers should consider this interconnection of places during their field research by frequenting connected nexuses. Thus, they are able to contextualize single shared religious places within the religioscape. This article aims to illustrate this methodological approach of multi-sited ethnography to investigate interconnected nexuses within a religioscape. This study exemplifies this approach using the case study of the St Naum monastery which is located in North Macedonia and visited by Christians and Muslims from various ethnic groups of this region. Hence, this article tackles the aim by asking: What is the religioscape of the St Naum monastery? Which places are connected with this monastery? And what information is gained about the monastery by frequenting the other places? This study is complemented by my experiences during field research in Macedonia, Albania and Kosovo.
Treatment of spinal lesions in breast cancer patients (literature review)
Authors: Rascheskova K. K. , Khasanov R. Sh. , Safin I. R. , Safin R. N. 
Published: June 2024

Breast cancer is one of the most significant problems in oncology. This pathology is characterized by increased risk of fractures associated with postmenopausal decrease in bone mineral density, use of hormone therapy, and presence of osteolytic metastases in the spine. All these factors can cause non-traumatic spine fractures decreasing patient mobility and leading to permanent pain syndrome and neurologic deficit.The article presents the modern view on the osteoporosis problem and risk of non-traumatic spine fractures in patients with breast cancer and spine metastases. Literature data on predictors of pathological bone fractures, as well as time and risk of spine metastases in these patients are analyzed. Data of modern studies on the effectiveness of various methods of breast cancer treatment and their combinations, as well as possibilities of minimally invasive surgical interventions, antiresorptive and radiological therapy are considered.
The Effectiveness of Radiofrequency Thermal Ablation in the Treatment of Patients with Osteoid Osteomas of the Spine
Authors: Kuznetsov S. F. , Babkin N. S. , Kabardaev R. M. , Borzov K. A. , Sofronov D. I. , Katarova A. V. , Valiev A. K. 
Published: June 2024

Osteoid osteoma is a rare benign osteogenic bone tumor without malignant potential causing severe night pain relieved by nonsteroidal anti-inflammatory drugs. Pain associated with osteoid osteoma of the spine cannot be treated conservatively and requires surgical approach. Types of surgical treatment include intralesional curettage, marginal resection, or en bloc tumor resection. However, absence of clear intraoperative visualization of the lesion often leads to excessive resection of vertebral structures requiring additional bone reconstruction and fixation with metal structures. In some cases, due to incorrect choice of resection area and segment level, repeat surgeries are performed causing secondary spinal deformations, worsening patient’s condition, and increasing economic expenditures. Currently, minimally invasive methods of transcutaneous treatment of osteoid osteomas such as interstitial laser ablation, cryotherapy, and radiofrequency thermal ablation are becoming more prominent.Aim. To evaluate the effectiveness of radiofrequency thermal ablation treatment in patients with osteoid osteoma.Materials and methods. The prospective study included 12 patients with osteoid osteoma of the spine. Their quality of life was evaluated using the Short Form-36 (SF-36) questionnaire prior to radiofrequency thermal ablation and 30, 90 and 180 days after. At the first visit and during observation, pain syndrome intensity was measured using the Visual Analog Scale (VAS) and R.G. Watkins scale for objective evaluation of pain syndrome per number of analgesics administrations.Results. Follow-up duration varied between 12 and 36 months. In all clinical cases, general, physical, and psychological health improved 2–3-fold. Pain intensity at day 1 after radiofrequency thermal ablation compared to mean pain intensity during the day prior to the procedure was significantly lower (р = 0.05). At the final examination, none of the patients had pain (pain syndrome intensity 0 per VAS); all patients had subjective satisfaction level of 100 %. Analgesics (nonsteroidal anti-inflammatory drugs and paracetamol) were administered on request for 8 ± 2.34 days after the procedure.Conclusion. Based on literature data and our own experience of diagnosis and surgical treatment of osteoid osteoma of the spine, we conclude that in cases of small lesions (<2 cm) in hard to access locations, computed tomography-controlled radiofrequency thermal ablation allows to perform surgical intervention safely, effectively and with minimal number of complications.
Classification of the Volume of Tumor Lesion of the Chest Wall as A Prerequisite for Planning Surgical Treatment
Authors: Valiev A. K. , Salkov A. G. , Fedorova A. V. , Efimenko O. , Eltsov I. V. 
Published: June 2024

Tumors of the chest wall are a heterogenous group of neoplasms per nosology, clinical progression, and treatment methods. Primary tumors of this location, according to some authors, comprise between 1 and 5 %, and 60 % of them are malignant. Tumors of the chest wall can have not only various nosological forms but also varying volume, location, affect different structures of the chest wall which are determined during physical exam. Despite the progress in drug therapy, radical surgical intervention is a prerequisite for successful treatment of patients with malignant tumors of the chest wall. One of the most important prognostic factors is sufficient margin during chest wall resection. The international tumor classification system Tumor, Nodus and Metastasis (TNM) does not give a complete understanding of the volume of lesions and therefore does not allow to correctly plan resection volume and defect reconstruction based on its data.The article presents a classification of tumor volume of the chest wall proposed by the Sarcoma Research Association which allows to expand indications for surgical treatment and select the optimal type of defect reconstruction.
Sentinel Lymph Node Biopsy in Cutaneous Melanoma: Results of a Single-Center Analysis
Authors: Musin Sh. I. , Zamilov M. M. , Menshikov K. V. , Sultanbaev A. V. , Yatsenko T. G. , Sharifgaleev I. A. , Metelev V. A. , Sultanova A. R. , Sharafutdinova N. A. , Nasretdinov A. F. , Nguyen H. , Sangisheva M. S. , Ayupov R. T. , Izmailov A. A. , Osokin S. V. 
Published: June 2024

Sentinel lymph node biopsy (SLNB) in cutaneous melanoma is a staging step in cases of unaffected regional lymph nodes. This method is included in routine practice in many medical facilities of the Russian Federation.Aim. To analyze the results of SLNB in cutaneous melanoma performed using gamma scintigraphy technique with the 99mTc-containing technefit radiopharmaceutical agent.Materials and methods. The prospective study included 97 patients (39.2 % (38/97) men and 60.8 % (59/97) women) with primary cutaneous melanoma who received surgical treatment at the Republican Clinical Oncological Dispensary (Ufa) between February of 2021 and January of 2023. Mean patient age was 57.2 ± 13.2 years (95 % confidence interval (CI) 53.8–61.3 years), mean Breslow thickness per biopsy and histological examination after wide tumor resection was 2.89 ± 2.7 mm (95 % CI 2.2–3.76 mm), median follow-up period was 14 months (interquartile range 8–18 months). 99mTc-containing technefit radiopharmaceutical agent was administered intradermally around melanoma/scar. Accumulation of the radiopharmaceutical in the regional lymph nodes was evaluated using single-photon emission computed tomography/computed tomography (SPECT/CT). Intraoperatively the sentinel lymph node (SLN) was identified using a portable gamma probe. Morphological evaluation was performed in accordance with the protocol approved at the Republican Clinical Oncological Dispensary and based on the updated protocol of the European Organisation for Research and Treatment of Cancer (EORTС) (2019).Results. The percentage of successfully mapped SLNs after radiopharmaceutical administration was 93.8 % (91/97). Mean number of visualized SLNs per SPECT/CT data was 1.7 ± 1.1 SLN (95 % CI 1.5–1.9). SLN biopsy was performed in 91.8 % (89/97) patients. Mean number of identified SLNs during SLNB was 1.9 ± 1.2 (95 % CI 1.6–2.3). Histological and immunohistochemical examinations showed SLN metastases in 22.5 % (20/89) patients; in 77.5 % (69/89) patients, no lymph node metastases were found. SLN biopsy allowed to perform disease staging. During follow-up in 3 patients with negative SLNs metastases in the regional lymph nodes were found, as well as in 2 patients with positive SLNs. The frequency of false negative SLNB results was 13 % (3/23), negative post-test probability was 2.8 % (2/69). V600E mutation in the BRAF gene was found in 42.3 % (22/52) patients.Conclusion. SLN biopsy using the technefit radiopharmaceutical showed satisfactory results: SLNs were identified in 93.8 % of cases. Morphological examination showed SLN metastases in 22.5 % (20/89) of patients.
Семантическая сегментация воздуха в кернах с шумоподавлением и постобработкой
Authors: Волков Михаил Игоревич , Каргина Полина Сергеевна 
Published: June 2024

Представлены результаты по семантической сегментации воздуха для цифровых кернов из бетона. В качестве предобработки изображений использованы нормировка яркости и шумоподавление. Для увеличения эффективности сегментации предложен метод по сегментации в трех направлениях с последующим суммированием полученных масок и применением медианного фильтра. Полученные маски изображений обладают трехмерной структурой и могут использоваться для формирования обучающего набора данных для 3D-архитектур сверточных нейронных сетей. Также предложенный метод можно использовать для увеличения изображений в обучающей выборке при условии долгого времени разметки данных.
Novas configurações e debates sobre as ações afirmativas em um contexto de mudanças
Authors: Neves Paulo S. da Costa , Barreto Paula Cristina 
Published: June 2024

Após 20 anos de implantação em algumas universidades públicas e dez anos depois de se terem tornado obrigatórias nas universidades e institutos federais por conta da chamada lei de cotas (Lei 12.711 de 2012), as ações afirmativas universitárias ainda continuam gerando polêmica, como provam os debates em torno da avaliação e da possível prorrogação da lei de 2012, com diversos projetos de lei com compreensões opostas tramitando no parlamento. Da mesma forma, o debate sobre como combater as desigualdades raciais em diferentes setores da sociedade brasileira redimensiona o tema no campo das políticas públicas no país. Assim, entender os efeitos dessas duas décadas de ações afirmativas no país é fundamental para que se possa ter uma visão ampliada dessas políticas, de modo a elevar os termos das discussões sobre o tema para além de suas implicações diretas. O presente dossiê pretende justamente contribuir nessa direção. Ao buscarmos dar visibilidade às transformações sociais provocadas direta ou indiretamente pela introdução de ações afirmativas, esperamos não apenas contribuir para a avaliação das consequências dessas políticas públicas, mas também lançar luz sobre o modo como elas afetaram a compreensão da “questão racial” em nossa sociedade. O que significa ampliar a reflexão sobre os efeitos e impasses das ações afirmativas, tanto no interior das universidades como fora delas. Isso a partir de textos sobre diferentes aspectos que transformaram a vida educacional no sentido mais amplo (com especial ênfase no espaço universitário) e sociopolítica no país.
Evaluating Inclusive Education Services In Islamic Education Institutions
Authors: Sumarni Sumarni , Salman Ibnu , Priwicaksono Noorman , Triana Dinny Devi 
Published: June 2024

The aim of the study is to gather accurate information pertaining to the real-world conditions regarding the implementation of inclusive education and to unearth fundamental problems in providing inclusive education services in madrasas. The study employs a combination of quantitative and qualitative approaches and evaluates a sample of 50 madrasas, along with an additional 8 institutions selected for in-depth analysis. The evaluation findings indicate that, concerning context, the introduction of inclusive education in most madrasas satisfies the prerequisites for executing inclusive education, including conformity with government policy, community demand and the schools' capabilities. Nonetheless, there are various issues regarding input, comprising deficient facilities and infrastructure, inadequate funding, scarcity of specialised support teachers and inadequate curriculum development, among others. Regarding implementation, 59.57% of participants reported that madrasas have been able to carry out the process of incorporating inclusive education, albeit suboptimally. As for outcomes, academic performance among children with disabilities is already noteworthy.