bluuebunny/crossref_metadata_2025_split huggingface dataset:
Modelling П-Shaped Concentrating Optics for Lcpv Solar Cells Using Fresnel Lens
Authors: Kapparova A. , Orynbassar S. , Dosymbetova G. , Almen D. , Yershov E. , Saymbetov A. , Nurgaliyev M. , Algazin N. , Sharipbay A. , Zhastalapova D. 
Published: October 2024

Abstract
Most concentrating optics do not show good performance at higher incidence angles and have low acceptance angles and, therefore, they require a high-accuracy solar tracking system, which is costly. In this study, by detailed investigation of optics of the proposed П-shaped concentrating optics, it was found that system remained high in terms of optical efficiency and its concentration ratio at certain higher incidence angles. During the work, ray path through the concentrating optics, width of the light spot at different incidence angles were calculated. Optical efficiency, geometrical concentration ratio, concentration ratio at different incidence angles were found by the results of COMSOL Multiphysics calculations. It was found that the system had a high optical efficiency of approximately 95% and its concentration ratio of 3x-5x was at the range of ±0-20 degrees of incidence angle, and it could reduce the work of a solar tracking system. As well, an increase in the optical efficiency could be seen from 0 to 5 degrees of the incidence angle and an increase in the concentration ratio could be seen from 0 to 12 degrees of the incidence angle in terms of the reflective mirrors which helped redirect the rays to the solar cells. Optical systems with such a high incidence angle could reduce the performance of the solar tracker system, and it reduced the overall cost and energy consumption of the LCPV.
Tobacco use as a contributing factor in HIV–TB co- infection – the multidisciplinary approach in the case of an immunosuppressed smoking patient
Authors: Iorga Luiza , Tanasescu Mihaela , Ciolan Gina , Balteanu Mara , Voinea Anca , Orghidan Mihnea , Croitoru Alina , Slabu Andreea Dumitrița 
Published: October 2024

Abstract

Introduction
Tuberculosis-HIV co-infection remains a challenge to the clinician largely as a result of the potentiation mutual, which will result in deterioration of the immunological status and increased risk of mortality.

Case presentation
37-year-old patient, smoker 5 pack-year (5PA), without pathological history, who is hospitalized in 2021 in an ear, nose and throat otolaryngology (ENT) service in the context of the appearance of laterocervical and axillary polyadenopathy, during the examination histopathologically resulting to be of tuberculous etiology. The transfer was made to the pneumophthisiology clinic where human immunodeficiency virus (HIV) testing was performed it was positive. It was decided to initiate antituberculosis and systemic corticoid treatment with initially favorable evolution, with the association following antiretroviral therapy. The patient develops motor deficits, and the brain magnetic resonance imaging (MRI) examination revealed the presence of two left hemispheric intracranial processes biopsied by neuronavigation, the result of which revealed histopathological changes highly suggestive of granulomatosis. In dynamics, the clinical examination carried out in an infectious disease service highlights the appearance of a pseudotumoral formation, with consistent right sterno-costal fluctuation, which is why it was decided to redirect the case to the thoracic surgery department, where drainage of the formation was practiced with the microbiological detection of Mycobacterium tuberculosis.

Discussions
The peculiarity of the case resides in the presence of multiple foci of extrapulmonary tuberculosis in a case of tuberculosis-human immunodeficiency virus ( TB-HIV) co-infection, without lung damage, in a patient with apparent compliance to treatment.

Conclusions
Tuberculosis remains a challenge for the clinician, especially in the case of HIV co-infection, association with mortality and increased morbidity.
Nexus Between Digital Communication Platforms and Sales Performance in Bangladeshi SMES: Customer Orientation as Mediating Variable
Authors: Rahman Mohammad Toufiqur , Shahabuddin Abdullah Mohammad , Chowdhury Mostafa Manir , Uddin Mohin , Chowdhury Alifa Mostafa , Islam Nazrul 
Published: October 2024

Objectives: The objective of this paper is to examine the impact of digital communication platforms on sales performance in small and medium-sized enterprises (SMEs) in Bangladesh where customer orientation acts as mediating effect.

Theoretical Framework: B2B sales can achieve competitive advantage through the strategic utilization of digitalization technologies where relationship marketing theory emphasizes the importance of fostering long-term customer relationship through customer oriented practice.

Methods: A structured survey was implemented to gather data from 100 small and medium-sized enterprises (SMEs) in Bangladesh. A survey was conducted to evaluate the utilization of digital communication platforms, consumer orientation, and sales performance. The variables were tested using multiple regression analysis and the sobel test was employed to determine the relationships among them.

Results: The results of the study highlighted the significance of digitalization in the B2B sales process for SMEs. However, SEO was seen to have a direct impact on B2B sales performance, while social media, email, and mobile marketing exhibited a substantial indirect influence. Additionally, customer orientation substantially mediated the indirect relationships to sales performance

Implications: Managers, academicians, policymakers, and business support organizations may use training and support programmes that promote the appropriate use of digital tools in SMEs.

Originality value: The study enhances the sales performance of Bangladeshi SMEs by offering empirical evidence regarding the mediating role of customer orientation in fostering business success in emerging markets.
ОСОБЛИВОСТІ СТАНОВЛЕННЯ РОСІЙСЬКОГО ПОЛІТИЧНОГО РАДИКАЛІЗМУ (2012 – 2024)
Authors: ВЕРНЕР Віктор , ВОВЧУК Людмила , Дерябін Антоній 
Published: October 2024

Мета дослідження – визначити особливості російського політичного радикалізму через призму його приналежності та формування за президенства Влaдіміра Путіна (2012 – 2024). Методологія дослідження ґрунтується на комплексному підході, в основі якого використання спеціального комп’ютерного методу комплексного аналізу (CNA), а також спеціально-історичних методів (історико-типологічний та історико-системний), за допомогою яких авторам вдалося з’ясувати особливості формування російського політичного радикалізму упродовж вказаного періоду. Наукова новизна полягає у визначені ідеологічної складової російського політичного радикалізму шляхом застосування новаторської комп’ютерної методики. Висновки. Російський політичний радикалізм є багатошаровим явищем, яке сформувалося під впливом історичних, соціальних, економічних та політичних факторів. Упродовж 2012 – 2024 рр. в ідеологічному дискурсі В. Путіна відбувається “консервативний поворот”, який визначається як “особливий шлях Росії”. Результати проведеного дослідження свідчать, що ця ідеологія упродовж вказаного періоду не є винятково внутрішнім явищем цієї країни. Російський правий радикалізм формувався не просто із запозиченням ідей Заходу, а на основі існуючого зв’язку між Росією та країнами Заходу. Цей зв’язок простежується не скільки через вплив організацій як через вплив мислителів, теоретиків, ідеологів, адептів різних течій вкрай правого радикалізму та релігійного політичного радикалізму. Серед яких найбільш впливовими виявилися група вкрай правих мислителів. Варто зауважити, що серед активних популяризаторів західних ідей правого радикалізму в Росії є Алєксандр Дугін та російський мільярдер Костянтин Малофеєв. Виходячи з цього заяви російського уряду, російської еліти щодо того, що російський правий радикалізм є винятково російським є міфом. Правильнішим у даному випадку є твердження самого В. Путіна та деяких західних представників вкрай правих, що Росія це і є Захід – але такий Захід, який був на їхню думку втрачений через надто сильний вплив ліберальних і лівих цінностей.
Ідеологія Путіна (2012 – 2024) – це спотворена, доопрацьована “по-російськи” модель політичного радикалізму, яка базується на поєднанні авторитаризму, патріотизму, антизахідних настроїв, консерватизму, державного капіталізму та військової сили. Ця ідеологія дозволяє В. Путіну та його оточенню забезпечити контроль над країною та проводити агресивну зовнішню політику, становлячи серйозну небезпеку цілісності системи міжнародних відносин. Яскравим прикладом є російсько-українська війна, яка почалася у 2014 р. і триває донині. Ця війна є серйозною загрозою розвалу європейського проекту і приходу на його місце Євразійського антиліберального проекту Кремля.
Фінансування. Робота виконана за підтримки Національного наукового центру (Польща) в рамках дослідницького проекту “Історичні наративи в Web 2.0 як функціональний елемент національних ідентичностей у Центральній та Східній Європі”, № UMO-2020/39/B/HS3/01237.
ІСТИНА – ЦЕ ТЕ, В ІМ’Я ЧОГО ІСНУЄ НАУКА (рецензія на наукове видання: Шлях з первісності у цивілізацію. Українські шати середньовіччя / НАН України, Ін-т історії України. Київ: Академперіодика, 2023. 658 с., 136 с. іл. (Україна. Нариси історії))
Authors: КОТОВИЧ Віра , МАЦЬКІВ Петро 
Published: October 2024

рецензія на наукове видання: Шлях з первісності у цивілізацію. Українські шати середньовіччя / НАН України, Ін-т історії України. Київ: Академперіодика, 2023. 658 с., 136 с. іл. (Україна. Нариси історії)
Pseudo Rho-Algebras in Fields with their Applications Using Polynomials with Two Variables
Authors: Jaber Azeez Lafta , Khalil Shuker Mahmood 
Published: October 2024

The main purpose of this work is to present the concept of pseudo Rho-algebra as a generalization of the Rho-algebra. We investigate this type behaves nicely in terms of common mappings like homomorphisms and direct products. In fact, we can show identify kernel objects and the fundamental theorem of homomorphisms using Rho-ideals in this theory. Also, some important classes of pseudo Rho-algebra and their applications are investigated and studied. Moreover, the necessary characteristics for or tantamount to membership in major subtypes of pseudo Rho/d-algebras under these cases are identified. The Rho/d-algebras and pseudo Rho/d-algebras are generated using some new classes of polynomials with two variables that are introduced in this work, like commutative identical, associative identical, regular identical, proper conditionally identical, and improper conditionally identical. Finally, the category of pseudo Rho/d-algebras can be classified using a conditionally couple, giving us additional flexibility in dealing with two different fields.
An Examination of Heba Al-Dubbagh's Just Five Minutes: Nine Years in the Prisons of Syria Through The Scope of Foucault’s Theory of Power Relations
Authors: Abdullah Mustafa Rodhan , Jassim Shimaa Abdullah 
Published: October 2024

The present study deals with Foucault’s theory of Power Relations in Prison Literature. It focuses on Heba Al-Dabbagh's Just Five Minutes: Nine Years in the Prisons of Syria. The study argues that examining Power Relations in this novel shows how prison narratives can reflect and challenge hierarchies, authority, and resistance in such environments.
It also seeks to show how Al-Dabbagh represents the effect of power relation on prisoners and the prison guards in her novel by relying heavily upon the theoretical framework of Power Relation by Michael Foucault. Using a Foucauldian perspective, this research emphasizes how the Syrian regime's exertion of power was based on establishing an atmosphere of fear, in which the individual is reduced to a passive subject of the state.
Severe Electron Environment for Surface Charging at Geostationary and Medium Earth Orbits
Authors: Ganushkina Natalia Yu. , Matéo-Vélez Jean-Charles , Dubyagin Stepan 
Published: October 2024

Electron radiation environment with keV energies on medium earth orbit (MEO) is investigated around the times when worst-case severe environments for surface charging were detected at Los Alamos National Laboratory (LANL) satellites on geostationary earth orbit (GEO). The Inner Magnetosphere Particle Transport and Acceleration Model (IMPTAM) is employed to model 1–100 keV electron fluxes in the inner Earth’s magnetosphere (inside [Formula: see text]) during four representative events selected out of 400 LANL worst-case severe environment events. Modeled fluxes are compared to the observed ones on GEO, and the peak electron fluxes are then extracted at [Formula: see text] which is considered as approximate MEO environment following the LANL events. IMPTAM generally reproduces the 10–50 keV electron fluxes on GEO but underestimates (of factor of 2 to 5) at energies above. It is found that the maximum electron flux on MEO is reached in about 1.5–2 h after the worst-case environment for surface charging was detected at GEO. Whereas the magnetic local time (MLT) location of the worst-case severe environments on GEO varies from 23 to 05, the maximum electron flux on MEO is located on 6–7.8 MLT. The maximum electron flux values on MEO can be 2 to 10 times higher than those observed on GEO and those estimated using European Cooperation for Space Standardization and National Aeronautics and Space Administration guidelines, which can be a significant increase of the risks in terms of surface charging.
Identification of steroidal cardenolides from Calotropis procera as novel HIV-1 PR inhibitors: A molecular docking & molecular dynamics simulation study
Authors: Swapna Kandagatla , Srujana M. , Mamidala Estari 
Published: October 2024

Background & objectives
Despite advancements in antiretroviral therapy, drug-resistant strains of HIV (human immunodeficiency virus) remain a global health concern. Natural compounds from medicinal plants offer a promising avenue for developing new HIV-1 PR (protease) inhibitors. This study aimed to explore the potential of compounds derived from Calotropis procera, a medicinal plant, as inhibitors of HIV-1 PR.

Methods
This in silico study utilized natural compound information and the crystal structure of HIV-1 PR. Molecular docking of 17 steroidal cardenolides from Calotropis procera against HIV-1 PR was performed using AutoDock 4.2 to identify compounds with higher antiviral potential. A dynamic simulation study was performed to provide insights into the stability, binding dynamics, and potential efficacy of the top potential antiviral compound as an HIV-1 therapeutic.

Results
We found that all tested cardenolides had higher binding affinities than Amprenavir, indicating their potential as potent HIV-1 PR inhibitors. Voruscharin and uscharidin displayed the strongest interactions, forming hydrogen bonds and hydrophobic interactions with HIV-1 PR. Voruscharin showed improved stability with lower RMSD (Root Mean Square Deviation) values and reduced fluctuations in binding site residues but increased flexibility in certain regions. The radius of gyration analysis confirmed a stable binding pose between HIV-1 PR and Voruscharin.

Interpretation & conclusions
These findings suggest that Calotropis procera could potentially be a source of compounds for developing novel HIV-1 PR inhibitors, contributing to the efforts to combat HIV. Further studies and clinical trials are needed to evaluate the safety and efficacy of these compounds as potential drug candidates for the treatment of HIV-1 infection.
α9β1 integrin & its ligands as new potential biomarkers in FMF
Authors: Ellergezen Pınar , Coşkun Belkıs Nihan , Bozkurt Zeynep Yılmaz , Çeçen Gülce Sevdar , Ağca Harun , Pehlivan Yavuz , Dalkılıç Hüseyin Ediz , Çavun Sinan , Yanar Yusuf Berkcan 
Published: October 2024

Background & objectives
Familial Mediterranean Fever (FMF) manifests as a hereditary condition characterized by repeated bouts of fever, abdominal, chest, and joint discomfort, and swelling. Colchicine is the most common form of treatment, but it does not eliminate the disease. The underlying causes of the inflammatory mechanism are still not fully known.

Methods
A total of 20 healthy controls, 16 individuals with FMF in the attack period, and 14 in the remission period participated in the study. ITGA9, ITGB1, OPN, TNC, VEGF, VCAM-1, TGM2, TSP-1, Emilin-1, and vWF levels were measured by ELISA by obtaining serum from blood samples of individuals. In addition, gene expressions of α9β1 (ITGA9, ITGB1) and its best known ligands (TNC, SPP1) were analyzed by quantitative real-time PCR (qPCR).

Results
The findings of this study showed that serum levels of α9β1 and its ligands were higher in individuals with FMF in the attack period than in the healthy controls and the FMF group in the remission period (P<0.05). The marker levels of the healthy group were also higher than those in the remission period (p<0.05). In addition, when the gene expressions were compared between the healthy controls and FMF group, no significant difference was found for ITGA9, ITGB1, TNC, and SPP1 genes.

Interpretation & conclusions
The function of α9β1 and its ligands in FMF disease was investigated for the first time in this study as per our knowledge. Serum levels of these biomarkers may help identify potential new targets for FMF disease diagnosis and treatment approaches.
Relationship Between Single-Leg Vertical Jump and Drop Jump Performance, and Return to Sports After Primary Anterior Cruciate Ligament Reconstruction Using Hamstring Graft
Authors: Ohji Shunsuke , Aizawa Junya , Hirohata Kenji , Ohmi Takehiro , Kawasaki Tomoko , Koga Hideyuki , Yagishita Kazuyoshi 
Published: October 2024

Background After anterior cruciate ligament reconstruction (ACLR), asymmetry is likely to persist in single-leg (SL) vertical jump and drop jump performance than in SL hop distance. However, its relationship with the return to sport (RTS) remains unclear. Hypothesis/Purpose This study aimed to determine the association between vertical jump performance after primary ACLR using hamstring tendon autograft and RTS at a pre-injury competitive level. Study design Cross-sectional study Methods Patients who underwent primary ACLR using hamstring tendon autograft were recruited for this study. Participants who returned to pre-injury competition after ACLR were recruited at least eight months postoperatively. Knee condition was assessed, including joint laxity, range of motion, muscle strength, and knee pain intensity during sports activities. Performance variables were also assessed, including SL hop distance, jump height in SL vertical jump, and reactive strength index (RSI; jump height/contact time) in SL drop jump. Participants were asked to subjectively report whether they had returned to the same level of competition as pre-injury and their perceived sport performance intensity. Those who answered “Yes” to the dichotomous question and had a postoperative subjective athletic performance of > 80% were categorized into the Yes-RTS group. The primary outcome was the ability to achieve RTS at the preinjury level. Results Sixty-five patients (female, 35; male, 30) at 13.0 (13.0) [median (interquartile)] months after ACLR participated in this study. Thirty-nine (60%) were assigned to the Yes-RTS group. Regarding knee conditions, the No-RTS group had a significantly higher knee pain intensity, as assessed using a numerical rating scale (p<0.001, effect size -0.45). In the performance tests, the No-RTS group exhibited a significantly lower limb symmetry index of RSI during the SL drop jump compared to the Yes-RTS group (p=0.002, effect size 0.81). Conclusion Patients unable to achieve RTS after primary ACLR using hamstring grafts are more likely to exhibit asymmetric performance during the SL drop jump test, suggesting the significance of assessing jump symmetry when evaluating post-ACLR rehabilitation success. Level of Evidence 3c
Rehabilitation Protocol Variability Following Arthroscopic Bankart Repair and Remplissage for Management of Anterior Shoulder Instability: A Systematic Review
Authors: Villarreal-Espinosa Juan B. , Reinold Michael M. , Khak Mohammad , Shariyate Mohammad J. , Mita Carol , Kay Jeffrey , Ramappa Arun J. 
Published: October 2024

Background Augmentation of an arthroscopic Bankart repair with the remplissage (ABR) procedure has shown to confer a decrease in recurrence rates, yet, at the expense of potentially compromising shoulder motion. Purpose/Hypothesis The purpose was to examine clinical studies that described a post-operative rehabilitation protocol after an arthroscopic Bankart repair and remplissage procedure. It was hypothesized that a review of the literature would find variability among the studies and that, among comparative studies, there would be a limited distinction from protocols for isolated Bankart repairs. Study design Systematic Review Materials and Methods A search was conducted using three databases (PubMed, EMBASE, and CINAHL) according to the Preferred Reporting Items for Systematic Review and Meta-Analyses (PRISMA) guidelines. The following terms were combined while utilizing Boolean operators: (Bankart lesion OR labral tear) AND (remplissage). Studies evaluating patients after arthroscopic stabilization for unidirectional anterior glenohumeral instability with the addition of the remplissage procedure and at least 1 year follow-up were included for analysis. Results A total of 41 studies (14 Level IV, 24 Level III, 2 Level II, and 1 Level I) were included with a total of 1,307 patients who underwent ABR. All patients had <30% glenoid bone loss and a range of 10-50% humeral head size Hill-Sachs lesion. Type and position of immobilization were the most reported outcomes (41/41) followed by time of immobilization (40/41). Moreover, 23/41 studies described their initial post-operative shoulder range of motion restrictions, while 17/41 specified any shoulder motion allowed during this restrictive phase. Time to return to sport was also described in 37/41 of the retrieved studies. Finally, only two of the 27 comparative studies tailored their rehabilitation protocol according to the specific procedure performed, underscoring the lack of an individualized approach (i.e. same rehabilitation protocol for different procedures). Conclusion The results of the present systematic review expose the variability among rehabilitation protocols following ABR. This variability prompts consideration of the underlying factors influencing these disparities and underscores the need for future research to elucidate optimal rehabilitation. Based on the results of this systematic review and the senior authors´ clinical experience, a rehabilitation approach similar to an isolated Bankart repair appears warranted, with additional precautions being utilized regarding internal rotation range of motion and external rotation strengthening. Level of Evidence Level 3