bluuebunny/crossref_metadata_2025 huggingface dataset:
The Role of Algal Symbiont Growth in Driving the Thermal Responses of a Widespread Photosymbiotic Ciliate
Authors: Makin Ben
Published: December 2024

Understanding the impacts of climate change on ecosystems remains a major contemporary research theme in the biosciences. However, the role of mixotrophs, organisms that combine autotrophic and heterotrophic processes to grow and reproduce, as important determinants of the thermal responses of ecosystems and their services is largely unresolved. In particular, photosymbioses, ubiquitous mixotrophic associations in which autotrophs reside within heterotrophic hosts, are known to play key roles in global biodiversity and carbon cycling. While specific impacts, particularly in the coral-zooxanthellae interaction, are thoroughly documented, ecologists lack a general theoretical framework describing the impacts of temperature change on photosymbiotic interactions. Here, I apply principles of the metabolic theory of ecology to assess the metabolic basis of the temperature-induced disruption of photosymbiosis in the microbial Paramecium bursaria - Chlorella spp. association. In contrast to the general prediction that net autotrophy should decrease with temperature, this microbial photosymbiosis harboured larger algal symbiont populations and consumed fewer prey with warming, suggestive of increased net autotrophy with warming - a pattern that held across strains isolated from three different continents. This observation appeared to be a simple consequence of the response of symbiont growth rate. I conclude that a metabolic framework for photosymbiosis may prove insightful, but the ecological dynamics of the associations (e.g. mixotrophic strategy) must be considered in tandem.
Freshwater Eukaryotic and Prokaryotic Microalgae as a Source of Compounds with Anticancer Activities. Pt 2: Bioprospecting Species from Natural Freshwater Habitats and Extreme Environments
Authors: Senhorinho Gerusa N. A. , Lannér Carita , Laamanen Corey A. , Lima Suzana T. Cunha , Scott John A.
Published: December 2024

The search for new and effective anticancer drugs from natural sources has been expanded beyond culture collections. It now includes the less explored eukaryotic and prokaryotic microalgae, bioprospected from both extreme and non-extreme freshwater environments. Microalgae exposed to abiotic stresses, found in a variety of ecosystems, have shown the ability to produce a series of unique metabolites, which help them adapt and survive. In particular, those found in extreme environments may be capable of producing metabolites that are novel and have potential cancer fighting properties. This review highlights current research into extracts and compounds from microalgae bioprospected from a range of freshwater environments, including extreme environments, and their potential in producing anticancer agents.
Single-parameter concrete carbonation model for varying environmental exposure conditions
Authors: Gopinath Rakesh , Alexander Mark , Beushausen Hans
Published: December 2024

Carbonation-induced reinforced steel concrete corrosion is a prominent concern related to engineering design and maintenance. The Durability Index (DI) approach was developed in South Africa to address this concern and enhance the durability performance of reinforced concrete structures. This approach relies on durability index tests, which are associated with transport mechanisms linked to specific deterioration processes. The carbonation of concrete is primarily influenced by the microstructure and transport characteristics of the concrete. Environmental exposure conditions also influence the rate of carbonation. The focus of the research reported here was to develop a carbonation model that could predict the rate of carbonation of concrete exposed to, or sheltered from, rain, with the permeability coefficient (k) from the Oxygen Permeability Index (OPI) test (DI test) as the key unifying variable. The model development was based on natural carbonation data and the drying profiles (experimentally measured) of 48 different concretes. Concrete microstructure was varied by varying the water-to-cement ratio, curing conditions, and by using SCMs. The resulting carbonation model was able to predict the rate of carbonation of concrete, allowing for different exposure conditions. A unique feature of this model is its use of a single material property, the 'k' value, to effectively address both CO2 diffusion and the drying process within concrete. The model displayed sensitivity towards the influence of variation in CO2 concentration, concrete microstructure, and the environmental exposure conditions, making this a simplified, effective and practical concrete carbonation prediction model.
Vigencia normativa en el Mercosur ¿cambio de paradigma jurídico o perfeccionamiento del sistema?
Authors: Deluca Santiago
Published: December 2024

El presente trabajo refleja un recorrido analítico de la metodología jurídico-política escogida para la construcción del proceso de integración del Mercosur, su relación con el derecho económico internacional, las particularidades de sus fuentes de derecho instrumentadas a partir de la firma y entrada en vigor del Protocolo de Ouro Preto, así como los principios aplicables a este nuevo derecho y el sistema de vigencia de las normas.
A partir de ello y del impacto de la teoría de la integración inversa, se reflexiona sobre la necesidad de instrumentar una flexibilización del proceso de integración o si, por el contrario, a la luz de la denominada cooperación reforzada del esquema europeo aplicada a casos concretos se puede corroborar la suficiencia de herramientas jurídicas, sin necesidad de instrumentar cambios como consecuencia del perfeccionamiento del sistema de vigencia normativo del Mercosur.
McKie, Stuart. 2023. Living and Cursing in the Roman West: Curse Tablets and Society. London: Bloomsbury; 978-1-3502-8935-2 paperback £28.99.
Authors: Line Madeline
Published: December 2024

This is a review of Living and Cursing in the Roman West: Curse Tablets and Society by Stuart McKie, published in 2023 by Bloomsbury.
Şeyhülislam Vassâf Abdullah Efendi, Kayıp Olduğu Düşünülen Fetâvâ-yı Vassâf Adlı Fetvâ Mecmûası ve Nukûlü
Authors: Arslan Emine
Published: December 2024

Osmanlı Devleti’nde en yüksek dînî-ilmî ve hukûkî kurumun başı olmaları hasebiyle şeyhülislamların tercüme-i halleri, eserleri ve verdikleri fetvâlar her zaman ilgiye mazhar olmuştur. Bayramiyye tarîkati şeyhlerinden Akhisarlı İlyas bin İsa’nın neslinden gelen Vassâf Abdullah Efendi, usûlü üzere tahsilini tamamlayıp müderrislik, kadılık, fetvâ emînliği, Anadolu ve Rumeli kazaskerliği vazifelerinde bulunduktan sonra III. Osman (ö. 1171/1757) tarafından şeyhülislam olarak atanmıştır. Vassâf Abdullah Efendi yaşlılığı sebebiyle beş ay gibi kısa bir süre şeyhülislamlık makamında kaldıysa da zamanında verilen fetvâlar bir mecmûa boyutuna ulaşmış ve önemine binaen derlenip bir araya getirilmiştir. Vassâf Abdullah Efendi’nin diğer eserleri üzerinden edebî yönü, Arap dili ve belâgâtına katkıları gibi hususlarda çalışmalar yapılmışsa da daha önce Fetâvâ-yı Vassâf’ın nüshalarına ulaşılamamış olması bu eserin karanlıkta kalmasına sebep olmuştur. Bu çalışmada Vassâf Abdullah Efendi’nin hayatı, vazifeleri, ailesi ve eserleri hakkında bilgi verildikten sonra dört nüshası tespit edilen Fetâvâ-yı Vassâf’ın ve bu nüshalarda yer alan nukûlünün özellikleri zikredilerek Osmanlı dönemi fetvâ literatürüne katkı sağlamak amaçlanmıştır.
Különböző gyepkezelések gyepgazdálkodási eredményei Aba melletti kaszálón
Authors: Takács Anna , Wagenhoffer Zsombor , Bajnok Márta , Penksza Károly , Saláta-Falusi Eszter , Szentes Szilárd
Published: December 2024

A munka célja, hogy bemutassa a digitalizáció fontosságát és lehetőségeit a méhészetekben. Két alkalmazást, a Züminaplót és az ApiManagert mutatjuk be. Letöltést követően bal oldalt található meg a menü, amelyben rögzíthetőek az alapadatok és a méhészkedéskor tapasztaltak mindkét applikációban. Züminapló esetében a következő választási lehetőségek, adatok rögzíthetőek: telephelyek, kaptárok, mérleg, etetések, pörgetés, vándorlások, kezelések. Az ApiManagernél pedig a kezdőoldal, a méhész, a kaptárak, ellenőrzések, feladatok, a méhek élelme, a pergetési munkálatok, kezelések, tárolások. Az applikációk megfelelően működnek és gyors nyomonkövetést biztosítanak a méhészeti munka alkalmával. Véleményünk szerint népszerűsítésük fontos lenne, mert precízebb adatgyűjtést tesz lehetővé, ám a méhészek idősebb átlagéletkora miatt Magyarországon még kevéssé alkalmazottak.
Temptation by Space
Authors:   Stasis Center for Practical Philosophy, European University at St. Petersburg (EUSPb), Russia, Shashkova Anna
Published: December 2024

The author analyzes the early concept of mimicry of the French philosopher Roger Caillois, drawing attention to the ontological and epistemological significance of the image
in this theory, which is justified by the phenomenon of the “lyrical power” of objects
and analyzed through the concept of “objective ideogram.” Considering the death drive
in mimicry, the author formulates the concept of inorganic magnetism, in which the
being is drawn not by death, but by an inorganic form of existence. For an unfolding of
magnetism, the author turns to the philosopher Gaston Bachelard. According to Bachelard, the experience of space is the process of generating dreams, which, in his view,
are not isolated in the workings of consciousness, but have a material basis. The experience of valued spaces is dialectical, and represents a movement between the concrete-abstract, the intimate-extensive, the personal-impersonal. The author analyzes
Bachelard’s concept of archetypes, bringing it closer to the biosemiotic interpretation of
this concept as non-linguistic meanings that provide interspecies communication.
The author defines mimicry as a “fragile” experience, which is justified not only
by the fleeting nature of feeling itself, but by the contradiction inherent in mimesis. Mimesis combines opposing tendencies—the movement toward immanence and
the production of difference. Regarding the former, the author draws attention to the
procedural and transformative essence of mimesis, drawing on the study of Vladimir Weidlé and contemporary approaches of Nidesh Lawtoo and Michael Yampolsky.
The second tendency is analyzed from the opposition of the subordination of mimesis to identity in the thought of Plato and Plotinus and the emancipation of difference by Gilles Deleuze and Jacques Derrida.
REDI-NET S-2 SOIL PROCESSING v2
Authors: Consortium REDI-NET
Published: December 2024

This protocol details about soil processing for total nucleic acid extraction.
REDI-NET F-1 FECES FIELD SAMPLING v2
Authors: Consortium REDI-NET
Published: December 2024

To outline steps for properly collecting fecal samples from pastures to evaluate the risk of zoonotic disease transmission by the detection of pathogens from vertebrate DNA (vDNA).
Disconnectivity in a Changing Media and Political Landscape: A Multi-Contextual and Interdisciplinary Lens
Authors: Zhu Qinfeng , Bozdağ Çiğdem
Published: December 2024

This thematic issue examines disconnectivity in a world where connectivity is often assumed to be the norm. Drawing on multiple areas of research, such as political unfriending, digital disconnection, migration studies, and media censorship, it delves into the complexities of disconnectivity, moving beyond its framing as voluntary choice and individual practice. Collectively, studies in this issue highlight disconnection as a compelled act for self-protection and a collective strategy to tackle systemic problems. By examining enforced and coerced disconnection, they also reveal disconnection’s dual role as control and resistance. Through a multi-contextual and interdisciplinary lens, this issue challenges the normative assumptions implicit in our current understandings of disconnection, and, in doing so, advances the field.
Minimally invasive methods in pathomorphological assessment with a complete clinical response to neoadjuvant polychemotherapy in breast cancer patients
Authors: Maksimov K. V. , Bagdasarova D. V. , Leukhina I. А. , Mazo M. L. , Surkova V. S. , Gerasimov A. N. , Rozhkova N. I. , Volchenko N. N. , Kaprin A. D. , Zikiryakhodzhaev A. D.
Published: December 2024

Purpose of the study. To evaluate and compare the diagnostic significance of vacuum‑ assisted biopsy (VAB) and multifocal trepan biopsy (MTB) methods based on a pathomorphological study of postoperative material in patients diagnosed with breast cancer (BC) in all molecular biological types after neoadjuvant polychemotherapy (NAPCT) with a complete clinical response (cCR).

   Patients and methods. The study included 70 patients with cT1–3N0–3M0 breast cancer with different molecular biological types after NAPCT. It was conducted at the P. Hertsen Moscow Oncology Research Institute – Branch of the National Medical Research Radiological Centre from 2021 to 2023. All patients underwent ultrasound and digital mammography before andafter NAPСT to assess the clinical response to treatment. MTB was performed in 35 patients, VAB in 35 patients, followed by surgical treatment. Histological findings obtained by VAB and MTB and surgical material were compared to assess the pathomorphological response of the tumor to treatment.

   Results. According to the pathomorphological conclusion, the following results were obtained during the VAB: 1 – truly positive, 29 – truly negative, 3 – falsely negative, 0 – falsely positive. The overall sensitivity of the technique was 25.0 % (CI 6.8–60.2 %); specificity – 100 % (CI 88.1–100 %); false negative result (presence of tumor cells in the surgical material and negative result of VAB) – 9.1 % (CI 3.4–20.2 %); false positive result (absence of tumor cells in the surgical material and a positive result of VAB) – 0 % (CI 0–10.6 %). The overall diagnostic accuracy of the method was 90.9 % (CI 79.8–96.6 %). According to the pathomorphological study, the following was obtained during the MTB: 1 – true positive, 17 – true negative, 5 – false negative and 0 – false positive results. The overall sensitivity of the technique was 16.7 % (CI: 4.3–45.9 %); specificity – (100.0 % CI: 80.5–99.9 %). The false negative result was 23.8 % (CI: 11.3–41.9 %). The false positive result is 0 %. The overall diagnostic accuracy of the method was 78.3 % (CI: 61.2–89.7 %).

   Conclusion. The results of the study indicate a higher sensitivity of the VAB method compared to MTB in assessing the pathomorphological response of breast cancer patients after antitumor drug treatment, which shows a vector for conducting large prospective studies of this method.
Pathomorphological and pathohistological characteristics of vulvar cancer associated with lichen sclerosus
Authors: Sovpel O. V. , Malik A. V. , Strelchenko Yu. I. , Sovpel I. V. , Mikhailichenko V. Yu. , Parshin D. S.
Published: December 2024

Purpose of the study. To study the pathomorphological and pathophysiological characteristics of vulvar cancer associated with sclerosing lichen.

   Patients and methods. The study included 73 patients who underwent examination and treatment at the G. V. Bondar Republican Cancer Center in the period from 2002 to 2019. We performed a comprehensive morphological study, including an assessment of the specific volume of microhemocirculatory vessels and cellular infiltrates.

   Results. The tumor was most often localized in the area of the labia majora (57.5 %), with affected of the clitoris (12.3 %) and urethra (6.8 %), sometimes affecting both the labia minora and labia majora (23.3 %). Macroscopically, the infiltrative‑ edematous form predominates (63 %), followed by endophytic (20.6 %) and exophytic forms (16.4 %). In patients with invasive vulvar carcinoma associated with lichen sclerosus, undifferentiated types of VIN are often detected: in 52 cases out of 73 observations (71.2 ± 5.3 %). VIN1 was noted in 11 (15.1 ± 4.2 %), VIN2 in 16 (21.9 ± 4.8 %) and VIN3 in 25 (34.2 ± 5.5 %) cases. Thus, in VIN3 associated with LS, the specific volume of vessels was on average 0.1104 ± 0.0103. In well‑differentiated invasive squamous cell carcinoma in patients with LS, this indicator was statistically significantly higher – 0.1677 ± 0.0090 (p < 0.001). The number of cells per 1 mm² of stroma increased with decreasing differentiation degree: 1439 ± 56 in G1, 1550 ± 74 in G2, and 1729 ± 138 in G3. The average number of cells in the field of view also increased: 356 ± 05 in G1, 396 ± 30 in G2, and 520 ± 35 in G3. The specific volume of lymphocytes decreased with increasing tumor malignancy: G1–96.3 ± 2.1 %, G3–78.4 ± 3.9 %. The content of neutrophilic leukocytes and macrophage cells increased: neutrophils, G1–3.3 ± 0.5 %, G3–5.9 ± 0.2 %; macrophages, G1–2.6 ± 0.13 %, G3–4.8 ± 0.3 %. The specific volume of the parenchyma was 0.3501 ± 0.0194 in G1, 0.3711 ± 0.0203 in G2, and 0.4030 ± 0.0219 in G3. The specific volume of the stroma, on the contrary, decreased: G1–0.2052 ± 0.0218, G2–0.1650 ± 0.0206, G3–0.1477 ± 0.0198.

   Conclusion. The study showed a significant impact of the degree of differentiation of vulvar cancer on the morphological characteristics of the tumor and vessels of the microhemocirculatory bed, which can be used to improve diagnostic and therapeutic approaches.
ARMED CONFLICTS AND PRICE VOLATILITY OF CRUDE OIL: INSIGHTS FROM HISTORICAL DATA
Authors:   Ivan Franko National University of Lviv, Lviv, Ukraine, Kolotvin Eduard
Published: December 2024

Armed conflicts and other geopolitical events are known to significantly influence the dynamics of the global crude oil market. In this study, we explore how military warfare, specifically major armed conflicts from 1989 to 2022, impacts fluctuations in crude oil prices. Our analysis identifies 16 distinct volatility spikes, with approximately half occurring within a 28-day window surrounding the onset of armed conflicts. These findings prove the substantial impact that geopolitical tensions, particularly interstate conflicts, have on global oil prices. Through an examination of oil price behavior before and after conflict initiation, we assess volatility trends in the 30 days preceding and 180 days following the outbreaks. The results demonstrate that interstate conflicts, especially those involving major geopolitical players, amplify price volatility more significantly than intrastate conflicts. The study also reveals that the magnitude of volatility changes depends not only on the conflict’s scale but also on the region’s significance to global oil supply chains. Notably, large-scale geopolitical events such as Russia's full-scale invasion of Ukraine and the Gulf War were associated with some of the most notable spikes in oil price volatility. Additionally, we examine the timing of these volatility spikes, finding that markets typically react within an average of 26 days to major conflicts, although some events are anticipated by the market, resulting in pre-conflict volatility increases. Overall, our study provides valuable insights into the relationship between armed conflicts and oil price volatility, contributing to risk assessment, hedging strategies, and predictive modeling in the context of global commodity markets. This research also highlights the need for further exploration of how markets adapt to prolonged conflicts and geopolitical tensions.
Waves, Orbital Angular Momentum, Bound States in the Continuum, Fractals and Metasurfaces: Multi-Profile Radio
Authors:   Kotel’nikov Institute of Radioengineering and Electronics of RAS, Potapov Alexander A.
Published: December 2024

The article purpose is to introduce the reader to a number of non-standard ideas that reflect new paradigms of modern radio physics, radio photonics, radio engineering, radar, artificial intelligence, and so on. The author characterizes the new concept, which takes full advantage of the physical properties of electromagnetic waves and the universality of the topology of fractal sets, as a “multi-profile radio”. New concepts for processing of multidimensional signals in modern radio physical systems are considered. Presents a wide range of applications and implementation of topological texture-fractal processing (TTFP) of information created by the author and his students in radio physical systems. Modern ideas of photon-ics and radiophotonic are discussed: dynamic manipulation of electromagnetic waves using intelligent metasurfaces (MS). A review on THz wireless communication channels using orbital angular momentum (OAM) multiplexing is presented. A review of THz wireless communication channels using orbital angu-lar momentum multiplexing is presented.
Potential use of xenogenic biomaterial based on elastin derived from animal aortas for tissue remodeling
Authors: Shutskiy Nikita A. , Kashutin Sergey L. , Gorbatova Lyubov N. , Kholopov Nikita S. , Mizgirev D. V. , Sherstennikova A. K. , Sherstennikov Nikolay V. , Shagrov Leonid L.
Published: December 2024

This study addresses one of the key challenges in experimental and regenerative medicine: the development of a novel biomaterial based on native elastin, devoid of antigenic properties and derived from the aorta of a reindeer, by complete decellularization, with the aim of using it for tissue remodeling after injuries. The development of new approaches and agents for treating thermal burns and wounds (including gunshot wounds) is a crucial task, especially given the current context of large-scale military operations. The concept of obtaining a bioresorbable material with reduced antigenic properties from reindeer connective tissue arises from the need to improve treatment methods aimed at accelerating reparative processes in thermal and gunshot injuries, including penetrating wounds, as well as in those with a high risk of complications and permanent disability. Elastin, a fibrillar protein responsible for tissue stretching, is a key component of connective tissue found in many organs. In this study, the aorta of a reindeer, an elastic-type artery, was chosen as the source of elastin. Through mechanical, chemical, and biochemical processing, cells, collagen fibers, and ground substance with antigenic properties were removed, and an elastin-based biomaterial was obtained. The biomaterial was analyzed using light and electron microscopy. It was then used as a xenograft without antigenic properties to restore tissue integrity after thermal injuries. In experiments on laboratory rats, no rejection reactions were observed, indicating the absence of immunogenicity in the obtained biomaterial. These results suggest the potential use of this aorta-derived biomaterial for tissue remodeling to accelerate healing processes.
Modern differential diagnosis of various types of anemia in patients with HIV-associated disease
Authors: Sakhin Valery T. , Kryukov Evgeniy V. , Kazakov Sergey P. , Sotnikov Alexey V. , Gordienko Aleksandr V. , Gulyaev Nikolay I. , Rukavitsyn Oleg A.
Published: December 2024

This article substantiates the development of a diagnostic algorithm to differentiate between anemia of chronic disease (ACD) and iron deficiency anemia (IDA) in patients with HIV-associated disease. A cross-sectional descriptive study included 125 patients with HIV-associated disease, 101 of whom had anemia syndrome and 24 were without it (control group). Patients with anemia were divided into three groups: Group 1 with ACD only, Group 2 with ACD and IDA, and Group 3 with IDA only. Upon admission, all patients underwent assessments for red blood cell count, hemoglobin, IL-6, IL-10, and IL-1β, IFN-γ, TNF-α, ferritin, C-reactive protein, transferrin, hepcidin, and soluble transferrin receptor levels. Discriminant analysis followed by obtaining a canonical linear discriminant function was used to calculate a mathematical model for the differential diagnosis of ACD and IDA. Canonical analysis was also used to obtain centroids for ACD (2.86 arbitrary units) and IDA (2.54 arbitrary units). A patient with a calculated canonical linear discriminant function was to be assigned to the group of ACD or IDA based on the minimal distance to the corresponding centroid. The resulting mathematical model has 88.8% sensitivity and 100% specificity. The use of IL-6 and ferritin concentrations is also proposed as independent laboratory markers for the differential diagnosis of ACD and IDA. The canonical linear discriminant function obtained from the calculations, along with the levels of IL-6 and ferritin in the blood, have high diagnostic value for verifying ACD and IDA in patients with HIV-related disease. Their use enables the determination of the type of anemia during the initial contact between the physician and the patient.
Features of radiography of the scaphoid bone of the wrist
Authors: Zolotov Aleksandr S. , Bochayev Bair N. , Sidorenko Ilya S. , Dyachkova Julia A.
Published: December 2024

BACKGROUND: Scaphoid bone fractures are quite common. Difficulties and inaccuracies in the diagnosis of damages may significantly delay the treatment and reduce its efficacy. Routine X-ray imaging of the wrist joint is insufficiently informative, leaving some fractures undetected. The scaphoid bone has a distinctive shape and position in the wrist joint; thus, when using conventional positioning during X-ray imaging, the fracture line is not always visible, and the scaphoid bone appears shorter. W.R. Stecher, an American surgeon, proposed specific positioning options to examine the entire scaphoid bone, thus improving the diagnosis of scaphoid bone pathology.
AIM: To compare conventional positioning with three Stecher positioning options; to determine the option that best eliminates the distortion (shortening) of scaphoid bone images.
MATERIALS AND METHODS: The study included 13 volunteers aged 23 to 65 years. X-ray imaging of the wrist joint was performed in all volunteers using conventional positioning and three Stecher positioning options. The scaphoid bone length was measured. The results were processed using the MS Excel Analysis ToolPak (descriptive statistics); the Friedman test was used for repeated measurements.
RESULTS: The scaphoid bone length varied when using different positioning options. All volunteers had the shortest scaphoid bone length when using conventional positioning and the longest when using modified Stecher positioning. The difference in measurements between these positioning options was 2 to 8 mm, which is significant for a small anatomical structure.
CONCLUSION: In this study, the option “fingers clenched + elbow deviation” was found to be the best for frontal X-rays of the scaphoid bone. This approach (modified Stecher positioning) produces scaphoid bone images with minimal distortion, which is crucial for diagnosis, preoperative planning, treatment, and outcome assessment.
Endoprosthetics of the head of the talus for deforming arthrosis of the talonavicular joint
Authors: Skrebtsov Vladimir V. , Protsko Viktor G. , Skrebtsov Alexander V. , Tamoev Sargon K. , Nikitina Victoria K. , Kuznetsov Vasilii V.
Published: December 2024

INTRODUCTION: Idiopathic osteoarthritis of the rearfoot joints most commonly affects the talonavicular joint. Currently, talonavicular osteoarthritis is commonly treated using double and triple arthrodesis, as well as isolated talonavicular arthrodesis. However, restricting functionally significant joints of the foot results in increased load on adjacent joints, causing degenerative changes.
CLINICAL CASE DESCRIPTION: The paper presents a clinical case of surgical treatment in a patient with avascular necrosis of the talar head, deforming arthrosis, and fibrous ankylosis of the talonavicular joint by talar head replacement with an original ceramic implant. The presented case is the first to describe a novel treatment method for gross talonavicular joint pathology using a ceramic implant to replace the talar head.
CONCLUSION: Based on the medium-term outcomes of surgical treatment in a patient with stage III deforming arthrosis and fibrous ankylosis of the talonavicular joint, talar head replacement is a promising treatment option for this condition. The initial findings showed that the proposed implant and its placement method can be used as an option of choice to preserve the mobility of the talonavicular joint.
Long-term results of primary and revision oncological endoprosthetics
Authors: Sokolovskii Anatolii V. , Sokolovskii Vladimir A. , Aliev Mamed D.
Published: December 2024

BACKGROUND: Increased overall survival leads to a significant increase in the service life of implants. Currently, no joint replacement systems are failure-free, which reduces the service life.
AIM: To assess and systematize the main complications of primary and revision joint replacement surgery, identify the main causes of these complications at various stages of joint replacement based on literature data and analysis of own findings in a large patient population, and develop treatment approaches.
MATERIALS AND METHODS: The study included 1,292 patients with primary bone and soft tissue sarcomas, as well as metastatic and benign bone tumors, with 1,671 primary and revision joint replacement surgeries of varying extent performed between January 1992 and January 2020. The proportion of males and females who underwent joint replacement surgery was approximately equal. Joint replacement surgery was performed in 886 (68.6%) patients with primary cancer, 144 (11.1%) patients with metastases to long bones, and 262 (20.3%) patients with benign tumors.
RESULTS: During the study period, the overall incidence of complications was 1.4 times higher in the revision joint replacement surgery group (38.1%) compared to the primary joint replacement surgery group (26.6%). The most common type I–IV complications included unstable implants two and more years post-surgery (type IIB) and broken implants (type IIIA). As a result of innovative modifications, the overall incidence of type I–IV complications in primary and revision joint replacement surgery decreased to 16.5% and 24.3%, respectively. The most common cancer-related complication of primary joint replacement surgery was tumor recurrence (type V), accounting for 9.5% of cases. Tapered and cylindrical stems were the best shapes for primary and revision joint replacement surgery. The best stability was observed for 60–100 mm long stems in upper extremity joint replacement and 110–150 mm long stems in lower extremity joint replacement. Stems longer than 160 mm can only be used in revision joint replacement surgery. Adequate perioperative antibiotic prophylaxis reduced the risk of implant site infections.
CONCLUSION: High-quality cement mantle formation, stems that match the diameter and shape of the medullary canal, and optimal stem length decrease the incidence of early aseptic instability. The study used a set of preventive measures, including strict compliance with standardized antibiotic therapy regimens during and after surgery, surgical technique modifications, perioperative patient management, and informing patients about the risks of infectious complications. These measures decreased the incidence of early implant site infections after primary and revision joint replacement surgery for a period of 28 years. The efficacy of combination treatment for these diseases has a direct impact on the incidence of local tumor recurrence. Surgical technique modifications based on tumor grade significantly increased treatment efficacy.
Treatment of post-traumatic instability of the shoulder joint in athletes: literature review
Authors: Orletskiy Anatoliy К. , Timchenko Dmitriy O. , Gordeev Nikolay A. , Zharikov Vladislav A. , Vasiliev Dmitriy O.
Published: December 2024

According to the World Health Organization, the incidence of shoulder injuries is 17.2 cases per 100,000 population. Sports injuries account for approximately 7% of all shoulder injuries, which frequently results in sports career termination if medical attention is not received on time. Over the last decade, arthroscopic surgery has evolved from a diagnostic procedure to an effective therapy method for post-traumatic shoulder instability. Compared to open surgery, arthroscopic surgery is associated with a lower incidence of postoperative complications, shorter surgery duration, lower pain intensity, and early initiation of rehabilitation therapy. The use of both metal and biodegradable anchors reduced the incidence of relapses to 7%, which is a positive outcome. Advances in surgical treatment, particularly the use of arthroscopic techniques, allow for the minimally invasive restoration of shoulder joint function in athletes in a short period of time. Moreover, the postoperative period is characterized by a low incidence of complications and relapses. With each passing year, arthroscopic surgery allows for a broader spectrum of procedures with minimal tissue damage.
Hanefî Yargılama Usulü Açısından Beyyinelerin Tearuzu (Gānim El-Bağdâdî’nin Melceʾü’l-Ḳuḍât ʿinde Teʿârużi’l-Beyyinât Adlı Risalesi Üzerine Bir İnceleme)
Authors: Türkan Mustafa
Published: December 2024

Sosyal hayatta insanlar arasında meydana gelen ihtilafların mahkemeye intikal etmesi halinde kâdılar İslam hukuku açısından meseleyi inceleyip çözüme kavuşturmaya çalışmışlardır. Kimi durumlarda tarafların ortaya koyduğu eşit deliller birbiriyle tearuz ettiği için kâdılar, adaleti tesis edebilmek adına fıkıh eserlerini ayrıntılı bir şekilce incelemek durumunda kalabilmiştir. Bu durum da kâdıların işlerini zorlaştırdığı gibi mahkeme süreçlerini uzatmış ve adaletin tecellisini geciktirmiştir. Bu olumsuz durumu bertaraf etmek amacıyla eşit delillerin çatışması durumunda nasıl karar verilmesi gerektiğine ilişkin çeşitli fıkıh eserlerinden derlemeler yapılarak risaleler kaleme alınmıştır. Gānim el-Bağdâdî’nin Melceʾü’l-ḳuḍât isimli risalesi de sözü edilen amaç çerçevesinde yazılmıştır. Bu çalışmada Melceʾü’l-ḳuḍât’ta sıkça geçen beyyine, tearuz ve tercih kavramları incelenmiş, ardından risalede geçen nikah bölümüyle ilgili beş örnek zikredilip Hanefi mezhep görüşlerine göre örneklerin analizi yapılmıştır. Çalışmanın son kısmında ise risalede zikredilen Hanefi fetva usulüne ilişkin ilkelere yer verilmiştir.
PENGGUNAAN WORDWALL SEBAGAI MEDIA BERBASIS GAME EDUKASI UNTUK MENINGKATKAN MINAT BELAJAR SISWA KELAS IV SDN POLEHAN 1
Authors: Awal Sabiila Osa Putra
Published: December 2024

Minat belajar siswa merupakan hal yang sangat penting dalam keberhasilan proses belajar mengajar. Untuk dapat membangun minat belajar siswa guru harus mampu meningkatkan antusias siswa, salah satunya dengan menggunakan media pembelajaran. Namun pada kenyataannya minat belajar siswa kelas IV di SDN Polehan 1 masih perlu untuk ditingkatkan. Peneliti menggunakan media game pembelajaran edukatif Wordwall dalam upaya menumbuhkan lingkungan belajar yang inovatif, kreatif, dan aktif yang akan menarik minat siswa untuk belajar khsusunya kelas IV SDN Polehan 1 dalam mata pelajaran IPAS. Metode yang digunakan pada penelitian ini adalah deskriptif kualitatif dengan metode observasi dan wawancara. Observasi dilakukan untuk melihat secara langsung penggunaan media game edukatif Wordwall, sementara wawancara tertulis menggunakan angket digunakan untuk mengumpulkan data tentang penggunaan media game edukatif Wordwall. Hasil penelitian menunjukkan penggunaan media game edukasi Wordwall dapat memberikan perubahan minat belajar siswa kelas IV terhadap mata pelajaran IPAS. Hal ini terlihat dari siswa lebih aktif berpartisipasi dalam pembelajaran dan lebih senang dalam pembelajaran, dibuktikan dengan hasil angket yang diberikan di akhir pembelajaran. Kesimpulan dari penelitian ini bahwa penggunaan media game edukasi Wordwall mampu meningkatkan minat belajar siswa kelas IV SDN Polehan 1 mata pelajaran IPAS.
PEMBIASAAN KEAGAMAAN SEBAGAI IMPLEMENTASI PROFIL PELAJAR PANCASILA BERIMAN, BERTAKWA KEPADA TUHAN YANG MAHA ESA DAN BERAKHLAK MULIA
Authors: Lazim Yusuf Muhammad
Published: December 2024

Pentingnya Profil Pelajar Pancasila di dalam Pendidikan Indonesia yang tujuannya adalah sebagai untuk menunjukkan karakter dan kompetensi yang diharapkan bisa didapatkan oleh peserta didik. Profil pelajar pancasila untuk memperkuat peserta dalam nilai-nilai luhur pancasila. “pelajar indonesia adalah pelajar sepanjang hayat yang kompeten, berkarakter dan memiliki perilaku yang sesuai nilai-nilai pancasila”. Sehingga peneliti mengambil judul “Pembiasaan Keagamaan sebagai Implementasi Profil Pelajar Pancasila Beriman, Bertakwa Kepada Tuhan yang Maha Esa dan Berkahlak Mulia” penelitian ini menggunakan penelitian Kualitatif Deskriptif dengan Teknik observasi dan Wawancara, fokus pada penelitian ini hanya dimensi pertama pada Profil Pelajar Pancasila, karena terdapat Toleransi yang sangat tinggi di SMPN 2 Wagir antara peserta didik yang menganut agama Islam, Kristen, Hindu dan Budha. Pembiasaan yang dilakukan peserta didik sebelum memulai pembelajaran sangat terstuktur dengan baik, semua peserta didik yang berbeda keyakinan mendapatkan pembiasaan yang sama dan fasilitas yang sama, tanpa membeda-bedakan antara satu agama dengan agama yang lain. Penyediaan ruangan khusus dan guru yang membimbing sehingga peserta didik bisa belajar dengan aman dan nyaman.
PENERAPAN PENDEKATAN TEACHING AT THE RIGHT LEVEL (TARL) PADA KETERAMPILAN KOLABORASI SISWA
Authors: Rayi Puspitasaari Nila , Supriana Edi , Tita Liliani Novia
Published: December 2024

Penelitian penerapan pendekatan Teaching at the Right Level (TaRL) bertujuan untuk mendeskripsikan keterampilan kolaborasi siswa. Pada penelitian ini juga menambhakan model pembelajaran problem based learning. Metode penelitian yang dilakukan dengan jenis deskriptif kuantitatif yang menjelaskan gambaran mengenai kejadian yang terjadi dalam kehidupan sosial. Metode pengumpulan data meliputi wawancara dan observasi. Responden yang digunakan berjumlah 34 orang di SMPN 16 Malang. Hasil keterampilan kolaborasi dengan menggunakan pendekatan TaRL berada pada kategori baik. Dengan demikian, siswa dalam kegiatan diskusi pembelajaran mampu melaksanakan kerjasama dan interaksi yang saling menguntungkan dalam menmukan pemecahan permasalahan yang terjadi dan membangun budaya kerja yang positif pada kelompok.
IMPLEMENTASI PEMBELAJARAN BERBASIS PROYEK (PROJECT-BASED LEARNING) DI SEKOLAH MENENGAH KEJURUAN (SMK) UNTUK MENINGKATKAN KEAKTIFAN DAN FOKUS SISWA
Authors: Nizar Zein Fahru Rozi
Published: December 2024

Pembelajaran Berbasis Proyek (Project-Based Learning/PBL) dinilai efektif dalam meningkatkan keaktifan, fokus, dan keterampilan siswa Sekolah Menengah Kejuruan (SMK). Namun, implementasi PBL di SMK masih menghadapi tantangan yang perlu diatasi dengan strategi optimal. Penelitian ini bertujuan untuk meninjau implementasi PBL di SMK, mengidentifikasi tantangan yang dihadapi, dan merumuskan strategi optimal untuk mengatasinya menggunakan metode studi literatur kualitatif. Berdasarkan analisis terhadap studi-studi terdahulu, ditemukan tantangan utama seperti kurangnya pemahaman dan keterampilan guru tentang PBL, keterbatasan sarana dan prasarana pendukung, kurangnya dukungan dari pihak sekolah dan pemangku kepentingan, serta tantangan dalam penilaian hasil belajar. Strategi yang direkomendasikan meliputi pelatihan dan pendampingan guru secara berkelanjutan, penyediaan sarana dan prasarana yang memadai, membangun kemitraan dengan dunia industri dan komunitas, sosialisasi dan advokasi kepada pemangku kepentingan, serta pengembangan instrumen penilaian yang komprehensif. Penelitian ini berkontribusi dalam memberikan gambaran komprehensif tentang tantangan implementasi PBL di SMK dan menawarkan strategi optimal untuk mengatasinya, serta menekankan pentingnya dukungan dan komitmen dari berbagai pihak dalam mewujudkan keberhasilan implementasi PBL di SMK guna meningkatkan kualitas lulusan.
KONTRIBUSI DUKUNGAN KELUARGA DAN SELF-EFFICACY TERHADAP MOTIVASI BELAJAR SISWA PADA MATA PELAJARAN IPS DI SMP NEGERI 11 MALANG
Authors: Dedi Arimawan I Nyoman , Kurniawan Bayu , Ambarwati Ninik
Published: December 2024

Motivasi sangat penting dimiliki oleh peserta didik, karena dengan adanya motivasi peserta didik akan dapat mencapai hasil belajar yang maksimal. Namun kenyataannya motivasi tidak selalu dimiliki oleh setiap peserta didik yang dapat membuat pembelajaran menjadi tidak kondusif. Belum ada sebelumnya yang pernah meneliti menggunakan dua variabel terkait kontribusi dari dukungan orang tua dan self-efficacy terhadap motivasi belajar sehingga peneliti merasa penting untuk melakukan sebuah kajian empiris. Metode penelitian yang digunakan dalam penelitian ini adalah kuantitatif dengan jenis asosiatif. Populasi dalam penelitian ini adalah siswa kelas VIII di SMP Negeri 11 Malang, dengan sampel sebanyak 74 siswa dengan menggunakan rumus slovin. Data dikumpulkan dengan menggunakan kuesioner, yang kemudian disebarkan kepada responden. Hasil penelitian menunjukan bahwa ada pengaruh positif dan signifikan antara dukungan keluarga terhadap motivasi belajar siswa, ada pengaruh signifikan antara self-efficacy terhadap motivasi belajar siswa, kemudian ada pengaruh secara simultan antara dukungan orang tua dan self-efficacy terhadap motivasi belajar siswa. Temuan ini mengindikasikan bahwa pentingnya dukungan orang tua dalam meningkatkan motivasi belajar peserta didik, selain itu juga sangat penting adanya dorongan penguatan keyakinan dalam diri individu agar dapat termotivasi dalam menyelesaikan tugas yang diberikan kepada siswa.
ANALISIS UNTUK MENENTUKAN METODE INTERAKTIF DALAM MENINGKATKAN MINAT BELAJAR PESERTA DIDIK PADA MATERI SEJARAH KELAS 9 SMPN 2 MALANG
Authors: Ulfah Santya , Bachri Syamsul
Published: December 2024

Penelitian ini bertujuan untuk membantu guru menerapkan metode yang tepat dalam meningkatkan minat belajar peserta didik pada materi sejarah. Penelitian ini menggunakan metode kualitatif berupa pengamatan studi kasus. Dalam penelitian ini peneliti mengumpulkan data deskriptif yang diperoleh dari pengumpulan data melalui observasi, wawancara dan dokumentasi. Peneliti melakukan pengamatan dilapangan selama bulan Februari hingga Maret 2024. Hasil dari penelitian ini diketahui bahwa metode guru dalam mengajar sangat mempengaruhi minat belajar peserta didik. Apabila minat peserta didik meningkat, maka hasil belajarnya pun akan baik dan begitu juga sebaliknya. Oleh sebab itu, sebaiknya guru ketika akan melakukan kegiatan mengajar di kelas alangkah baiknya menggunakan berbagai metode yang bervariatif yang didukung dengan media kreatif yang interaktif seperti teka-teki silang, make a match, dan cerdas cermat, sebagai media penyampaian materi kepada siswa. Dengan begitu, guru dapat mencapai tujuan pembelajaran dan juga siswa lebih terdorong dan antusias ketika belajar sejarah di kelas.
Escala de preconceito sexual no esporte: tradução e análise psicométrica
Authors: Gomes Vivianne Oliveira , Pereira Henrique
Published: December 2024

Este estudo apresenta a tradução e validação inicial da Escala de Preconceito Sexual no Esporte (SPSS) para uso no Brasil e em Portugal. A escala contém 19 itens e está organizada em 3 subescalas: Rejeição Aberta, Negação de Visibilidade e Desempenho de Gênero. Participaram do estudo 618 estudantes universitários atletas (348 brasileiros e 270 portugueses), que responderam a um questionário sociodemográfico, à SPSS e à Escala Multidimensional de Atitudes em Relação a Lésbicas e Gays (EMAFLG). Foram realizadas análises fatoriais confirmatórias, testes de confiabilidade, de validade convergente e discriminante, e uma avaliação de invariância entre os países. As subescalas Rejeição Aberta e Desempenho de Gênero apresentaram propriedades psicométricas adequadas em ambos os países. No entanto, a subescala Negação de Visibilidade apresentou problemas de validade discriminante, especialmente na amostra brasileira. As correlações com a Escala Multidimensional de Atitudes em Relação a Lésbicas e Gays (EMAFLG) monstraram validade convergente satisfatória. Foram observadas diferenças significativas nos níveis de preconceito entre os países, com escores mais elevados em Portugal. Conclui-se que há evidências preliminares positivas sobre as qualidades psicométricas da SPSS, sobretudo em Portugal.
Boniteza, la experiencia estética en arte y educación. Avances y argumentos científicos desde las neurohumanidades
Authors: Mesías-Lema José María
Published: December 2024

Este artículo desarrolla el concepto de boniteza, inspirado en las teorías del gran pensador Paulo Freire, para argumentar cómo se produce la experiencia estética en arte y educación. La boniteza es la belleza de las cosas que vemos, observamos y palpamos, pero desde una profunda relación entre su ética y estética en la mente humana. Intentando demostrar esta relación, se hizo un análisis de la experiencia estética presente en el arte contemporáneo y en los objetos de la vida cotidiana y como esta interfiere en la cognición de las personas. Para justificar esta tesis, se desarrolla una metodología de scoping review para exponer los avances desde la neurociencia y neuroestética. Se analizaron y seleccionaron varios estudios científicos que explican, significativamente, cómo se producen las experiencias estéticas desde las artes visuales, la performance, la pintura, la música o la fotografía, entre otras disciplinas. Como conclusión se abre un nuevo campo científico en educación artística para explorar nuevas líneas de investigación en torno a la experiencia estética desde las neurohumanidades.
Warpage Control in Set-Top Box Components via Optimization of Injection Molding Parameters Using Taguchi L8 Orthogonal Array and ANOVA
Authors: Patil Shon , Phafat Nitin , Keche Ashok
Published: December 2024

This study aims to optimize injection molding process parameters to reduce defects, including warpage and short shots, in the manufacturing of Set-Top Box components. The Design of Experiments (DoE) methodology, specifically the Taguchi approach with a L8 orthogonal array, was employed to investigate six critical parameters: flow rate, melt temperature, mold temperature, holding pressure, gate diameter, and runner diameter. The research utilized Analysis of Variance (ANOVA) to assess the statistical significance and impact of each parameter on the faults. The findings indicated that melt temperature, mold temperature, and holding pressure substantially affect warpage, with melt temperature contributing to 48.08% of the fluctuation. The mold temperature and holding pressure accounted for 21.37% and 6.90%, respectively. The study emphasizes the necessity of optimizing these parameters to mitigate warpage and short shots, therefore enhancing the quality and dimensional stability of injection-molded components. The results provide actionable recommendations for improving product quality and efficiency in injection molding operations, facilitating additional research on process optimization.
Major Findings: The study optimized injection molding process parameters to reduce warpage and short shots in Set-Top Box components. Using the Taguchi L8 orthogonal array and ANOVA, melt temperature, mold temperature, and holding pressure were identified as critical factors, with melt temperature contributing 48.08% to warpage. These findings provide actionable insights to enhance dimensional stability and product quality in injection molding.
What are the Challenges of Growth for SAMOG and MOGI Companies in the Year 2025
Authors: Bhattacharya Jayanta
Published: December 2024

The mining industry of minerals, aggregates oil, and gas will face new corporate growth and sustainability challenges in 2025. Coupled with the challenges of regulations, clearances, royalty and taxations, and a general public aversion they will also have to face downturns of the economy. In my earlier articles I discussed the near certainty of a US recession, US recessionary tendencies would overwhelm the world market, after the huge debt scenario and prolonged war situations in the Middle East and Eastern Europe. On top of the above, there is no real income growth in the middle and lower -middle-class population, after inflation adjustment- this would bring down consumption and spending. This article explains the likely sectoral scenarios in the year 2025.