bluuebunny/crossref_metadata_2025_split huggingface dataset:
Presenting Analytical Relations and Numerical-Experimental Investigation of the Behavior of Tubular Damper in Compression and Tension under the Effect of Uniform Loading
Authors: Tabatabaei Farough B. , Mirhosseini S. Mohammad , Zeighami Ehsanollah 
Published: January 2024

Abstract
Yielding dampers should be designed in such a way that before the main elements of the structure yield, they provide the possibility of energy absorption and consumption. Therefore, for the structure's basic design, the damper's behavior in pressure and tension should be known, and their effect on the stiffness and strength of the structure can be estimated with relatively simple relationships. The main purpose of this paper is to provide accurate analytical relationships for the behavior of tubular dampers in compression and tension under the effect of uniform loading. In this regard, firstly, the behavior of a circular yielding damper was evaluated based on validated numerical models in ABAQUS software. Then, analytical relationships that show high accuracy compared to the results of finite element modeling have been presented using linear and nonlinear analysis. Also, a new bolt and nut connection detail is provided to reduce the possibility of welding failure at the joints of circular dampers. The new detail has been tested at a full-size scale and has shown no failure at the weld, even at large displacements. In the end, the results of the experimental sample with the presented analytical relations have shown that the analytical relations are highly accurate.
Composition of the CD27+ Memory-B-Cell Compartment Delineates Immunoglobulin Deficiency Endotypes
Authors: Starich Oliva , Rieck Jared M. , Tarter Wyatt J. , Hochheimer Camille J , Knight Vijaya , Abbott Jordan K 
Published: January 2024

Abstract
Abstract
Purpose: The finding of reduced numbers of class-switched memory B cells (CSM) in peripheral blood is widely used to assist the diagnosis and subclassification of CVID. Limited data exists on this finding in relation to the entire class of PADs. In this study, consecutive 8-marker comprehensive B-cell panel results were analyzed to determine how reduced CSM quantities might inform the pathophysiology of CVID and other humoral immunodeficiencies.
Methods: Subpopulations of CD27+ memory B cells from 64 consecutive subjects with or without humoral immunodeficiency were examined to identify associations with diagnosis and serum immunoglobulin level.
Results: CD27+IgM-IgD- percentage (CSM%) was correlated with IgG level in a discontinuous manner with an estimated change point of 9.7% (95% CI: 4.7, 12.4). All subjects with a CSM% below 9.7% had substantially lower serum IgG and IgA levels compared with those above 9.7. CSM% below 9.7% is not associated with serum IgM level. Rather, the proportion of CD27+IgMonly B cells (IgMonly or IgMonly%) is correlated with serum IgM.
Conclusion: Low CSM% may mark an endotype of humoral immune dysfunction defined by either loss of class switching or critical failure of the coordinated production of both memory cells and long-lived plasma cells responsible for adequate immunoglobulin levels in humans. In patients with low CSM%, maintenance or expansion of IgMonly cells and IgM production suggests the former explanation, while concomitant loss of IgMonly cells suggests the latter. These findings provide a simple endotypic stratification method for future studies on the failed coordinated B cell response in humans with PAD.
IPO underperformance and financial inclusion in the COVID-19 pandemic
Authors: fourati hedia , ayadi chiraz 
Published: January 2024

Abstract
IPOs (Initial Public Offering) are relevant as a mean of raising external funds to finance growth by investment firms that do not generate sufficient internal cash flows. This study analyzes the relationship between COVID-19 short-term IPO underperformance, ownership structure, liquidity and financial inclusion. The results of the simple regression of stock market return of 11 new French IPO introduced one year before the pandemic for three years 2019-2020-2021 shows that the ownership concentration reduces underpricing of IPO firms. In the whole sample two years after the pandemic underpricing is reduced due to ownership concentration preserving and high initial liquidity. In all times period financial inclusion reduces underpricing of IPO firms.
Network based Anomaly detection using Self-defined One Class Support Vector Machine with Grey Wolf Optimizer for Internet of Things Environment
Authors: Sumathi L. , Valarmathi M. L. 
Published: January 2024

Abstract
Anomaly detection is considered to be an important aspect in protecting Internet of Things (IoT) environment, as it helps to identify and alert abnormal activities in that system. Anomaly detection techniques first learns the normal behavior, based on that learning maps determines the given data instances as either normal or abnormal based on anomaly scores. The proposed self-defined One Class Support Vector Machine (S-OCSVM) generates pseudo outlier using negative data shifting method and applies grey wolf optimization to identify hyper parameters (Nu - lower limit on the required number of support vectors) and Gamma(Smoothness of the boundary) for the model. Experiments on NaBIoT and MedBIoT datasets for the proposed Self-defined One Class SVM shows that the model achieves good detection performance without false prediction of abnormal as normal and negligible misprediction of normal as abnormal
Mathematic Principles for Coding Contrast Variables Based on the GLM Model in Psychological fMRI Experiments with Single Independent Variable
Authors: Huang Wei 
Published: January 2024

Abstract
Some researchers have no idea about how the values in a certain contrast variable table are worked out, as well as no idea about the mathematical mechanisms of designing a contrast variable table based on their own hypothesse, although they know how to use contrast technique just by copying it from relevant contrast varibles table. The current paper is dedicated to detail relevant mathematic rationales for coding contrast variables in the general linear model (GLM) pertinent to hypothetical contrasts of psychological and neuroscience experiments. That is, how the coding values of different kind of contrast variables can be figured out based on relevant mathematical mechanisms, with regard to both un-weighted contrast coding and weighted contrast coding, including dummy variable, effect coding and Helmert coding etc.. Via establishing a transformed general linear model (TGLM) in this paper, a linear bridge between the original independent variable X and the contrast independent variable D i j is built up, so that readers can fully understand the mathematic rationales that how the contrast weights of C j i of ‾Y i related to certain hypotheses Ψ j and their relevant original independent variable X are transformed into codes of a set of contrast variables of D i j. Only when these relevant mathematical principles being grounded in mind, those interested, careful and meticulous researchers can fully master this contrast statistic technique, thereby, they can proceed to figure out how to design their own contrast variables followed on their own psychological study hypotheses using mathematic principles discussed in the present paper, instead of just copying contrast designs from references. However, this paper only deals with GLM analyses with only one independent variable X, with no considerations about GLM with multiple independent variables of X R. Also, multiple codes in the TGLM’s contrast variables of D i j are some transformed representatives of levels or contrasts within that single independent variable X’s range, i.e. they are not multiple independent variables of X R per se in some original multiple GLM.
Polyphosphate, Polyphosphatase and Stress Resistance of Knockout Mutants in the PPN1 and PPN2 Genes of Saccharomyces cerevisiae
Authors: Ledova Larisa , Kulakovskaya Tatiana , Ryazanova Lubov , Trilisenko Ludmila , Kulakovskaya Ekaterina , Tomashevsky Alexander 
Published: January 2024

Abstract
Yeast cells possess high levels of inorganic polyphosphate, which is involved in various processes regulating vital activities. In this work, using the commercially available Saccharomyces cerevisiae knockout mutants in the PPN1 and PPN2 genes encoding polyphosphatases, we have shown that each of the two single mutations leads to a set of similar physiological effects at the stationary stage of growth on glucose: the increased resistance to manganese and peroxide stresses, lack of polyphosphatase activity in mitochondria, and the increase in long-chained polyphosphate level. We suggest, that the increased stress resistance of ∆ppn1 and ∆ppn2 strains is associated with the increase in the level of long-chained polyphosphate. The cells of ∆ppn1 and ∆ppn2 mutants showed no significant differences in growth parameters in the media with ethanol or glucose compared to the parent strain. Earlier, we observed the inability to grow on non-fermentable carbon sources and mitochondrial defects in the ∆ppn1 mutant CRN constructed from another parent strain. The ∆ppn1 strain from the Dharmacon collection has no defects in mitochondria function. The data obtained provide evidence in favor of the participation of polyphosphates in stress adaptation of yeast cells.
Linking Academic Relevance and Achievement Motivation to Students’ Dishonesty. Original Research Brief Report
Authors: Koscielniak Maciej 
Published: January 2024

Abstract
Academic dishonesty among students is one of the major problems of academia worldwide, hindering the evaluation of educational outcomes and perpetuating harmful habits. The current study focuses on the role of academic relevance as an essential but often overlooked factor in promoting academic integrity. We hypothesized that students' belief in the practical application of their learning and its relevance to future careers would positively correlate with increased mastery motivation, leading to a decreased likelihood of engaging in dishonest behavior. The research sample included 235 students from various Polish universities, ranging in age from 18 to 51, providing a diverse demographic range. The study confirmed that academic relevance negatively predicts academic dishonesty through hierarchical regression and mediation analyses, with mastery motivation as a critical mediating factor. The findings are discussed with an emphasis on their practical implications, particularly in developing effective interventions to reduce academic dishonesty in the educational setting.
A Simple Scoring Scale for Predicting the Risk of Diabetic Retinopathy over 50 years old in China
Authors: Ge Qiwei , Zhang Yuyu , Liu Bihong , Sun Dajun , Liang Congkai , zhou Xiaoyi , Zhu Rongrong , Zhuang Xun 
Published: January 2024

Abstract
Purpose: To construct and evaluate a simple scoring scale for predicting the risk of diabetic retinopathy (DR) over 50 years old in China.
Methods: 1896 diagnosed patients over the age of 50 with diabetes were randomly selected and subjected to the epidemiological survey. According to the logistic regression analysis, the weights were assigned, and a simple scoring scale was constructed.
Results: The DR detection rate was 34.8 %. Analysis showed that family history of diabetes, diabetes treatment method, diabetes duration, and hemoglobin (Hb)A1c were independent DR risk factors. After excluding confounding factors and based on the β coefficient, the scale had a maximum score of 12 points. The area under the receiver operating characteristic curve was 0.753, the cut-off value was 4, the sensitivity was 66.5 %.
Conclusions: The simple scale according to the logistic regression analysis had good sensitivity and the ability to identify DR patients.
The Role of Social Media in Knowledge, Perceptions, and Self-Reported Adherence Toward COVID-19 Prevention Guidelines: Cross-Sectional Study
Authors: Garrett Camryn , Qiao Shan , Li Xiaoming 
Published: January 2024

Background
Throughout the COVID-19 pandemic, social media has served as a channel of communication, a venue for entertainment, and a mechanism for information dissemination.

Objective
This study aims to assess the associations between social media use patterns; demographics; and knowledge, perceptions, and self-reported adherence toward COVID-19 prevention guidelines, due to growing and evolving social media use.

Methods
Quota-sampled data were collected through a web-based survey of US adults through the Qualtrics platform, from March 15, 2022, to March 23, 2022, to assess covariates (eg, demographics, vaccination, and political affiliation), frequency of social media use, social media sources of COVID-19 information, as well as knowledge, perceptions, and self-reported adherence toward COVID-19 prevention guidelines. Three linear regression models were used for data analysis.

Results
A total of 1043 participants responded to the survey, with an average age of 45.3 years, among which 49.61% (n=515) of participants were men, 66.79% (n=696) were White, 11.61% (n=121) were Black or African American, 13.15% (n=137) were Hispanic or Latino, 37.71% (n=382) were Democrat, 30.21% (n=306) were Republican, and 25% (n=260) were not vaccinated. After controlling for covariates, users of TikTok (β=–.29, 95% CI –0.58 to –0.004; P=.047) were associated with lower knowledge of COVID-19 guidelines, users of Instagram (β=–.40, 95% CI –0.68 to –0.12; P=.005) and Twitter (β=–.33, 95% CI –0.58 to –0.08; P=.01) were associated with perceiving guidelines as strict, and users of Facebook (β=–.23, 95% CI –0.42 to –0.043; P=.02) and TikTok (β=–.25, 95% CI –0.5 to -0.009; P=.04) were associated with lower adherence to the guidelines (R2 0.06-0.23).

Conclusions
These results allude to the complex interactions between online and physical environments. Future interventions should be tailored to subpopulations based on their demographics and social media site use. Efforts to mitigate misinformation and implement digital public health policy must account for the impact of the digital landscape on knowledge, perceptions, and level of adherence toward prevention guidelines for effective pandemic control.
Impact of the Narcotics Information Management System on Opioid Use Among Outpatients With Musculoskeletal and Connective Tissue Disorders: Quasi-Experimental Study Using Interrupted Time Series
Authors: Lee Iyn-Hyang , Kim So Young , Park Susin , Ryu Jae Gon , Je Nam Kyung 
Published: January 2024

Background
Opioids have traditionally been used to manage acute or terminal pain. However, their prolonged use has the potential for abuse, misuse, and addiction. South Korea introduced a new health care IT system named the Narcotics Information Management System (NIMS) with the objective of managing all aspects of opioid use, including manufacturing, distribution, sales, disposal, etc.

Objective
This study aimed to assess the impact of NIMS on opioid use.

Methods
We conducted an analysis using national claims data from 45,582 patients diagnosed with musculoskeletal and connective tissue disorders between 2016 and 2020. Our approach included using an interrupted time-series analysis and constructing segmented regression models. Within these models, we considered the primary intervention to be the implementation of NIMS, while we treated the COVID-19 outbreak as the secondary event. To comprehensively assess inappropriate opioid use, we examined 4 key indicators, as established in previous studies: (1) the proportion of patients on high-dose opioid treatment, (2) the proportion of patients receiving opioid prescriptions from multiple providers, (3) the overlap rate of opioid prescriptions per patient, and (4) the naloxone use rate among opioid users.

Results
During the study period, there was a general trend of increasing opioid use. After the implementation of NIMS, significant increases were observed in the trend of the proportion of patients on high-dose opioid treatment (coefficient=0.0271; P=.01) and in the level of the proportion of patients receiving opioid prescriptions from multiple providers (coefficient=0.6252; P=.004). An abrupt decline was seen in the level of the naloxone use rate among opioid users (coefficient=–0.2968; P=.04). While these changes were statistically significant, their clinical significance appears to be minor. No significant changes were observed after both the implementation of NIMS and the COVID-19 outbreak.

Conclusions
This study suggests that, in its current form, the NIMS may not have brought significant improvements to the identified indicators of opioid overuse and misuse. Additionally, the COVID-19 outbreak exhibited no significant influence on opioid use patterns. The absence of real-time monitoring feature within the NIMS could be a key contributing factor. Further exploration and enhancements are needed to maximize the NIMS’ impact on curbing inappropriate opioid use.
Long-diagnosed primary adrenal insufficiency in the setting of Werlhof’s disease. A clinical case report
Authors: Chernyavska I.V. , Skrypnyk N.V. , Pankiv V.I. 
Published: January 2024

Chronic adrenal insufficiency is an endocrine disease caused by insufficient secretion of adrenal hormones due to dysfunction of one or more links of the hypothalamic-pituitary-adrenal axis. The highest prevalence has been documented in Scandinavian countries: 15–22 people per 100,000 population, while other European countries report 10 cases per 100,000 population. Autoimmune adrenalitis is the most common cause of primary adrenal insufficiency in adults, and it can be either alone (40 %) or a component of autoimmune polyglandular syndromes (60 %). The etiologic factors of primary adrenal insufficiency include tuberculosis or AIDS. These causes of adrenal cortical insufficiency are particularly relevant in Ukraine. The article describes a clinical case of a patient with both primary adrenal insufficiency and Werlhof’s disease. The prevalence of adrenal insufficiency and etiologic factors of primary adrenal insufficiency are highlighted. A detailed differential diagnosis of primary adrenal insufficiency with other diseases that could cause clinical symptoms such as hypoglycemic states, severe weight loss, hypotension, severe muscle weakness, hyponatremia, hyperkalemia is performed. The basic principles of diagnosis, treatment, and prognosis in primary adrenal insufficiency are discussed. Despite typical, specific manifestations of adrenal insufficiency, diagnosis in real clinical practice is difficult. Awareness and vigilance of doctors regarding the symptoms of adrenal insufficiency is necessary. Late detection of chronic adrenal insufficiency can lead to complications. Timely diagnosis and treatment of chronic adrenal insufficiency improves disease prognosis and quality of life.
DPRK UNDER KIM JONG-UN: KEY RESULTS OF THE FIRST DECADE (2012-2021)
Authors: Zakharova Liudmila , Asmolov Konstantin 
Published: January 2024

The article examines the main trends and results of the political, military and economic deve­lopment of the DPRK in the first decade under the young leader Kim Jong-un. It shows that the state and party administration system has been gradually reshaped under the new leader, whose power has not diminished in comparison with his predecessors. Despite the lack of publicity, the reorganization of the North Korean administrative system has been progressing and was aimed at improving the quality of the state machinery and the party apparatus. The authors review the results of the country’s progress in the nuclear missile field. Given the development of the delivery systems, the nuclear missile potential of North Korea has gone past the minimum level of containing potential enemies and aims for reliability: chances of a successful retaliatory strike not only in the territory of allied America, but also in the continental territory of the USA have significantly increased. The paper highlights the main trends of strengthening the DPRK’s international positions in this period, as well as the remaining problems of the nuclear problem of North Korea.
The authors analyse the main directions of Kim Jong-un’s economic policy and the key challenges to the country’s economic development. The attempt to modernize the economy and embark on the path of sustainable growth through the expansion of foreign economic relations was disrupted by international sanctions. The ‘quasi-market’ reforms that began in the early years of Kim Jong-un’s rule and were closely connected with foreign trade exchange became sluggish, and the state strengthened administrative control over their allocation amid the shortage of domestic resources.
It is concluded that the main goals of the DPRK’s main state sub-systems (military, politics, economy) are subject to the task of maintaining the stability of the current management system of the country, as this is seen by the leader as a guarantee of the physical survival of the state.
Caucasian–Caspian Region in the Politics of the Russian Empire in the First Decade of the 18th Century
Authors: Magaramov Sharafutdin 
Published: January 2024

The article focuses on the latest findings of the study on the Caspian foreign policy direction of the Russian Empire under Peter the Great. The heuristic work in the federal and regional archives of Russia helped to identify and introduce to academia over 300 original documents that allow to study the Russian policy in the south-western areas of the Caspian Sea in the first third of the 18th century, which became Russian territories after the Persian campaign. Detailed analysis of sources on the Persian campaign and stationing of Russian troops in the Caspian region, first in historiography, revealed the most unrenowned subjects and allowed to study those using newly discovered documented data with the application of new methodological approaches.
The author studies the administrative practice in the Russian Empire in the Caspian region in 1722–1735, showing the challenges of governing the region associated with the natural and geographical aspects, the remoteness of the region from the main part of the state and the ethno-political structure of the annexed territories. The Persian campaign of Peter the Great resulted in the emergence of a Russian-Turkish frontier in the eastern Transcaucasia,
which separated the historically developed Caucasian and Persian communities disregardi­ng their economic traditions and ethnocultural contacts, leading to a complex and volatile frontier situation in the region. The study of the behavioural actions of various actors in the frontier region allowed to determine their attitude to the emergence of the Russian and Ottoman empires in the Western Caspian region. The author analyses the specifics of the dual administrative system established in Derbent after it was annexed to Russia in 1722, where both a representative of the local authority via the naib and the imperial commandant performed administrative functions. For the first time in Caucasian studies, the article reconstructs the image of Peter the Great in the historical memory of Dagestanis of the present and of the time of the campaign.
As a result of the project, two these and a collection of archive documents and materials have been published.