bluuebunny/crossref_metadata_2025_split huggingface dataset:
Development and Applications of Titanium Alloy SP-700 with High Formability
Authors: Ogawa A , Niikura M , Ouchi C , Minikawa K , Yamada M 
Published: February 2024

Abstract
A new β-rich α + β titanium alloy, SP-700, was designed to improve hot workability and mechanical properties over Ti-6A1-4V alloy. The chemical composition of the alloy is Ti-4.5A1-3V-2Mo-2Fe, and particularly enhanced properties include superplasticity, hardenability, and fatigue strength. Owing to its extremely fine microstructure and low β-transus temperature, SP-700 is superplastically formable at temperatures below 1073 K without significant increase in flow stress. More advantageously, diffusion bonding is also accomplished around this temperature. The low temperature SPF/DB process not only saves die material life and process costs, but also reduces alloy degradation from exposure at elevated temperatures, e.g., grain growth and oxidation. Isothermal and conventional hot forging are also performed better with SP-700 than ordinary titanium alloys like Ti6A1-4V.
The alloy is heat treatable and one of its many mechanical properties is that high strength over 1200 MPa is attained in solution treatment and aging condition. The advantage to this is that the moderately stable β phase tolerates air cooling for solution treatment. Thermal distortion in work pieces, which would be caused by rapid cooling, is consequently avoided. In addition, the alloy is cold workable in such cases as rolling and blanking, when annealed around 1073 K. Furthermore, fatigue life and resistance to hydrogen-assisted stress corrosion cracking are improved due to reduced aluminum content.
The superior properties of SP-700 over conventional titanium alloys make new applications possible in non-aerospace fields including sporting goods, hand tools, and wrist watches. Golf drivers, with club heads made of SP-700, are sold commercially. Crampons, a new product of SP-700, withstand cold blanking and bending which reduces production costs and extends life. Due to its high forgeability, SP-700 is expected to extend its application to the production of steam turbine blades. Details of practical applications have been demonstrated together with advantages of properties and fabrication for the blades.
Successful Management of the Analytical Laboratory
Authors: Riga AT , Scott CG 
Published: February 2024

Abstract
This book successfully reviews the operation of an analytical laboratory based on the lab manager's responsibilities. Laboratory performance, cost-effectiveness, and professional status of lab personnel are a focus for the author. The experienced analytical manager will benefit from the twelve chapters and 17 case studies. The potential or new lab manager will also gain insight into pertinent areas discussed by the author, including “Functions of the Industrial Analytical Laboratory, Organization of the Laboratory,” “Staffing the Laboratory,” “Managing Lab Personnel,” “Oral and Written Presentations,” “Workload Management,” “Quality Performance,” “Budgeting the Cost Control,” and “Information Management.”
Anetta Bogusława Strawińska, Leksyka północnokresowa jako element deskrypcji zagadnień ortoepicznych w poradnikach Aleksandra Walickiego i Aleksandra Łętowskiego, Wydawnictwo PRYMAT, Seria: Białostockie Studia Językoznawcze (tom 18), Białystok 2022, ss. 192, ISBN 978-83-7657-465-3.
Authors: Davlevič Miroslav 
Published: February 2024

The publication of Anetta Boguslava Stravinska Leksyka północnokresowa jako element deskrypcji zagadnień ortoepicznych w poradnikach Aleksandra Walickiego i Aleksandra Łętowskiego (2022) belongs both to a number of studies of the Polish language in Lithuania, and to studies of the correctness of Polish speech. The purpose of the study is to compare examples from manuals on correct speech by Alexander Valitsky and Alexander Lentovsky, to establish the linguistic consciousness of both Polish speakers at the end of the 19th and early 20th centuries, and the authors of the manuals. The book under review is an interesting and valuable contribution, complementing previous studies of the Polish language in the Kres. The monograph will also provide scientific and didactic assistance in further studying the problems of the culture of Polish speech in Lithuania.
Analysis of external personal dosimetry for external ex-posure to medical radiation workers in radiotherapy and nuclear medicine departments between 2019 and 2022
Authors: Mancilla M. C. , Ferreira-Tapia A. , Ayala L. M. 
Published: February 2024

The National Cancer Institute from Chile possesses a wide variety of high-complexity equipment for cancer treatment and diagnosis that employs ionizing radiation with high and medium energy. Presently, the radiotherapy department is equipped with 5 clinical linear accelerators and one brachytherapy equipment, while the nuclear medicine department is equipped with a PET-CT, a single gamma camera, and a hospitalization room for betatherapy. A descriptive statistical analysis was conducted on the Personal Doses Equivalent Reports from medical radiation workers between 2019-2022. The analysis involved extracting Hp(10) and Hp(0.07) measurements from digital reports using the Python Pandas library, and a database was constructed. The annual set of data was selected for each department to describe their behavior concerning Hp(10) total since PD8 dosimeters had the highest circulation. Additionally, using the boxplot format for the Hp(10) and Hp(0.07) distributions, means, medians, minimums and maximums, interquartile ranges and outliers were analyzed. While Hp(10) measurements exhibited an increase, Hp(0.07) measurements remained constant or experienced a decrease. All reported measurements were less than international tolerances. Finally, this initial descriptive statistical analysis enables the radiation safety officers to evaluate the applicability of inferential statistical analysis with stronger evidence and in an objective manner.
TECHNOLOGY FOR AUTOMATED CONSTRUCTION OF DOMAIN DICTIONARIES WITH SPECIAL PROCESSING OF SHORT DOCUMENTS
Authors: Kungurtsev O. B. , Mileiko I. I. , Novikova N. O. 
Published: February 2024

Context. The task of automating the construction of domain dictionaries in the process of implementing software projects based on the analysis of documents, taking into account their size and presentation form.
Objective. The goal of the work is to improve the quality of the dictionary based on the use of new technology, including special processing of short documents.
Method. A model of a short document is proposed, which presents it in the form of three parts: header, content and final. The header and final parts usually contain information not related to the subject area. Therefore, a method for extracting content based on the use of many keywords has been proposed. The size of a short document (its content) does not allow determining the frequency characteristics of words and, therefore, identifying multi-word terms, the share of which reaches 50% of all terms. To make it possible to identify terms in short documents, a method for their clustering is proposed, based on the selection of nouns and the calculation of their frequency characteristics. The resulting clusters are treated as ordinary documents, since their size allows for the selection of multi-word terms. To highlight terms, it is proposed to select sequences of words containing nouns in the text. Analysis of the frequency of repetition of such sequences allows us to identify multi-word terms. To determine the interpretation of terms, a previously developed method of automated search for interpretations in dictionaries was used.
Results. Based on the proposed model and methods, software was created to build a domain dictionary and a number of experiments were conducted to confirm the effectiveness of the developed solutions.
Conclusions. The experiments carried out confirmed the performance of the proposed software and allow us to recommend it for use in practice for creating dictionaries of the subject area of various information systems. Prospects for further research may include the construction of corporate search systems based on dictionaries of terms and document clustering.
DETECTION OF A SEISMIC SIGNAL BY A THREE-COMPONENT SEISMIC STATION AND DETERMINATION OF THE SEISMIC EVENT CENTER
Authors: Vakaliuk T. A. , Pilkevych I. A. , Hordiienko Y. O. , Loboda V. V. , Saliy A. O. 
Published: February 2024

Context. The work is devoted on the development of theoretical foundations aimed at automating process of determining location at the seismic event center.
Objective. The purpose of the work is to develop a method for determining the center of a seismic event based on the use of the features of the angular characteristics of the constituent volume waves of a seismic signal obtained with the help of a threecomponent seismic station. The proposed method will reduce the time it takes to provide users with preliminary information about the fact of a seismic event and its parameters.
Method. The method of automatic detection focal point is based on features of orthogonality in the angular characteristics volume waves registered sample of three-component seismic recordings from a certain direction. Implementation of the proposed approaches makes it possible to reduce the processing time of the seismic record with appropriate reliability compared to processing in manual mode.An example application of the proposed method (algorithm) for processing a seismic signal in the Vrancea zone on 27.10.2004 with magnitude M=5.7 is considered.
Results. The proposed approach to processing the measured data of a separate seismic three-component seismic station using a polarization analysis device allows detecting the arrival of a seismic signal, identifying the main components of a seismic signal, and estimating the location of the epicenter of a seismic event.Experimental research on the use of the proposed algorithm for determining the location of the epicenter of a seismic event showed that the time of establishing an emergency event within the borders of Ukraine was reduced five times (from 15 to 3 minutes), and the detection error was 37 km.
Conclusions. The formed basis and proposed approach to detecting a seismic signal, identifying its components and determining a seismic event focal point based on results of processing a three-component seismic record are effective. Proposed method (algorithm) should be used to automate process of seismic signal detection by a three-component seismic station and to determine the seismic event center.
NEURAL ORDINARY DIFFERENTIAL EQUATIONS FOR TIME SERIES RECONSTRUCTION
Authors: Androsov D. V. 
Published: February 2024

Context. Neural Ordinary Differential Equations is a deep neural networks family that leverage numerical methods approaches for solving the problem of time series reconstruction, given small amount of unevenly distributed samples.
Objective. The goal of the following research is the synthesis of a deep neural network that is able to solve input signal reconstruction and time series extrapolation task.
Method. The proposed method exhibits the benefits of solving time series extrapolation task over forecasting one. A model that implements encoder-decoder architecture with differential equation solving in latent space, is proposed. The latter approach was proven to demonstrate outstanding performance in solving time series reconstruction task given a small percentage of noisy and uneven distributed input signals. The proposed Latent Ordinary Differential Equations Variational Autoencoder (LODE-VAE) model was benchmarked on synthetic non-stationary data with added white noise and randomly sampled with random intervals between each signal.
Results. The proposed method was implemented via deep neural network to solve time series extrapolation task.
Conclusions. The conducted experiments have confirmed that proposed model solves the given task effectively and is recommended to apply it to solving real-world problems that require reconstructing dynamics of non-stationary processes. The prospects for further research may include the process of computational optimization of proposed models, as well as conducting additional experiments involving different baselines, e. g. Generative Adversarial Networks or attention Networks.
ENSEMBLE OF ADAPTIVE PREDICTORS FOR MULTIVARIATE NONSTATIONARY SEQUENCES AND ITS ONLINE LEARNING
Authors: Bodyanskiy Ye. V. , Lipianina-Honcharenko Kh. V. , Sachenko A. O. 
Published: February 2024

Context. In this research, we explore an ensemble of metamodels that utilizes multivariate signals to generate forecasts. The ensemble includes various traditional forecasting models such as multivariate regression, exponential smoothing, ARIMAX, as well as nonlinear structures based on artificial neural networks, ranging from simple feedforward networks to deep architectures like LSTM and transformers.
Objective. A goal of this research is to develop an effective method for combining forecasts from multiple models forming metamodels to create a unified forecast that surpasses the accuracy of individual models. We are aimed to investigate the effectiveness of the proposed ensemble in the context of forecasting tasks with nonstationary signals.
Method. The proposed ensemble of metamodels employs the method of Lagrange multipliers to estimate the parameters of the metamodel. The Kuhn-Tucker system of equations is solved to obtain unbiased estimates using the least squares method. Additionally, we introduce a recurrent form of the least squares algorithm for adaptive processing of nonstationary signals.
Results. The evaluation of the proposed ensemble method is conducted on a dataset of time series. Metamodels formed by combining various individual models demonstrate improved forecast accuracy compared to individual models. The approach shows effectiveness in capturing nonstationary patterns and enhancing overall forecasting accuracy.
Conclusions. The ensemble of metamodels, which utilizes multivariate signals for forecast generation, offers a promising approach to achieve better forecasting accuracy. By combining diverse models, the ensemble exhibits robustness to nonstationarity and improves the reliability of forecasts.
Inequities in dietary intake and eating behaviours among adolescents in Canada
Authors: Patte Karen A. , Duncan Markus J. , Amores Angelica , Belita Emily , Kocsis Rita , Riazi Negin A. , Laxer Rachel , Leatherdale Scott T. 
Published: February 2024

Abstract
Objective
To provide contemporary evidence of how dietary intake and eating behaviours vary by social positions among adolescents.

Methods
We used survey data collected during the 2020–2021 school year from 52,138 students attending 133 secondary schools in Alberta, British Columbia, Ontario, and Quebec, Canada. Multiple regression models tested whether self-reported indicators of dietary intake and eating behaviours differed by gender, race/ethnicity, and socioeconomic status (SES).

Results
Females were more likely than males to skip breakfast, restrict eating, and consume fruit, vegetables, and fast food on more days. Gender-diverse/“prefer not to say” students were more likely to restrict eating than males and the least likely to consume breakfast and drink water daily, and fruits and vegetables regularly. Black and Latin American students were more likely to restrict eating and consume purchased snacks and fast food, and less likely to drink water daily than white and Asian adolescents. Daily breakfast consumption was most likely among Latin American students. Black students were the least likely to report eating breakfast daily and fruits and vegetables regularly. Lower SES was associated with lower odds of eating breakfast and drinking water daily and regular fruit and vegetable consumption, and higher odds of restrictive eating and purchased snack consumption. Fast food consumption had a u-shaped association with SES.

Conclusion
Results emphasize gender, racial/ethnic, and socioeconomic inequities in the diets and eating behaviours of adolescents. There is a critical need to address the structural factors contributing to inequities and prevent the consequences of dietary disparities.
Current state and perspectives on the use of zirconium ceramic implants in traumatology and orthopaedics
Authors: Volokitina E. A. , Antropova I. P. , Timofeev K. A. , Trufanenko R. A. 
Published: February 2024

Background Ceramic materials are currently in wide demand in various fields of medicine. Zirconium ceramics demonstrate exceptional mechanical properties and biocompatibility and do not cause cytotoxic effects or allergic reactions in surrounding tissues.The objective was to present an analysis of current literature data on the use of zirconium ceramics as a bone replacement material in traumatology and orthopaedics.Materials and methods The search for publications was conducted using the databases of Scopus, PubMed and the electronic scientific library eLIBRARY in the Russian and English languages using the keywords: bioceramics, bone, bone defect, zirconate, zirconium ceramics, bone tissue engineering, implant, scaffold, augment, biointegration, bioactivity. Depth of search for scientific papers was from 2000 to 2023.Results and discussion Zirconium dioxide is the main ceramic bioinert material. The study presents the characteristics of ZrO2 as a bone replacement material and its comparison with titanium implants. Data are presented on various strategies for improving zirconium bioceramics: improving the surface of the material by physical and chemical methods, obtaining volumetric porosity, including using additive technologies, creating composite materials, and developing bioactive coatings. New methods of creating zirconium ceramics compatible with living tissues containing bioactive ions that promote both osseointegration and bone tissue regeneration have been actively studied.Conclusions Zirconium dioxide ceramics appear to be a promising alternative to titanium implants in terms of mechanical strength, biological functionality, chemical stability, osseointegration, and antibacterial properties. Future experimental and clinical studies will further improve zirconium ceramics.
Mesenchymal stem cells and exosomes in bone defects treatment
Authors: Greben A. I. , Eremin P. S. , Kostromina E. Yu. , Markov P. A. , Gilmutdinova I. R. 
Published: February 2024

Introduction Bone defect management is a critical stage of treatment and rehabilitation that still remains a challenging problem for traumatologists and orthopaedists. The need for tissue engineering techniques is due to limited abilities of the human body to correct bone tissue autoregeneration, especially in comorbid and elderly patients with osteoporosis. Bone autografts is a gold standard in those cases but is associated with certain restrictions. Regenerative medicine and stem cell biology development opened up capabilities to employ new methods for enhancement of bone tissue repair. A special interest of researchers is focused on mesenchymal stem cells and extracellular vesicles for bone tissue regeneration optimization.Purpose of this review was to show mesenchymal stem cells and exosomes effeciency in bone defect treatment.Materials and methods Open electronic databases of scientific literature, PubMed and e-Library, were used. The literature data search was carried out using the keywords: regenerative medicine, bone defects, exosomes, mesenchymal stem cells.Results and discussion The review presents current ideas about mesenchymal stem cells, their microenvironment and exosomes influence on bone tissue repair. Clinical need in effective bone regeneration is still high. Mesenchymal stem cells and acellular regenerative treatments have shown good results in bone defects repair and are perspective directions. Productive use of mesenchymal stem cells and exosomes in bone defects treatment requires further study of their mechanisms of action, the regenerative techniques efficacy and safety evaluation in preclinical and clinical studies.Conclusion The use of mesenchymal stem cells and cell-free regenerative approaches has demonstrated good results in the restoration of bone tissue defects and is a promising direction.
Failed distractional bone regeneration as a complication of distraction osteosynthesis: risk factors, preventive diagnosis, treatment
Authors: Novikov K. I. , Klintsov E. V. , Klimov O. V. , Sergeev K. S. 
Published: February 2024

Introduction Despite the large number of articles on complications associated with surgical lengthening, information about such a complication of transosseous distraction osteosynthesis as failed bone regenerate (called hypoplastic in foreign literature) is extremely rare. There are no methods for predicting the restructuring of the regenerate and clinical recommendations for the management of patients at various stages of reconstruction of the distraction regenerate. This entails a long period of immobilization and severe complications.The objective of the work was to define the notion of inadequate (“ischemic”/hypoplastic) bone regeneration and the problem of its formation as a complication during surgical limb lengtheningMaterial and methods The PubMed database and the eLIBRARY scientific electronic library were used to select sources for a systematic literature review. The sources published between 1997 and 2020 were selectedResults and discussion Ineffective distraction bone regenerate is a complication of surgical segment lengthening with the shape and/or structure of the newly formed bone preventing functional load on the segment. There is a general tendency with bone elongations being greater than 15-20 % to significantly reduce biomechanical properties of the distractional regenerate bone. Patients' age at surgical lengthening is not reported as a risk factor for distraction regenerate fractures and a history of adverse events and complications is regarded as an additional risk factor. Inadequate (unstable) distraction regenerate bone includes morphotypes III-V and structural types 1, 5, 7 as classified by Ru Li. There are no clinical guidelines for operational strategy. Failed distraction bone regeneration as a complication of distraction osteosynthesis was reported by different authors between 1997 and 2020. There are conflicting statistically unreliable data regarding a risk for regenerate bone to develop into a less stable type. The surgical options presented have no statistical significance (occasional case reports) and do not describe all possible clinical scenarios.Conclusion The problem of failed distraction regeneration and impaired organotypic restructuring remains one of the most important problems in limb lengthening. Inadequate formation and restructuring of newly formed bone can be caused by many factors including anatomical, physiological and technological aspects that would require further comprehensive study.