bluuebunny/crossref_metadata_2025 huggingface dataset:
Novel cationic surfactants: synthesis, surface, antimicrobial studies and applicability as an extracting agent for interested element from monazite mineral concentrate
Authors: Abdel-Salam Fatma H. , Abdellah Walid M. , Taher Fatma A. , El-Sheikh Enass M. , Hassanin Mohamed A. , Elamary Doaa M. E.
Published: March 2023

Two novel cationic surfactants based on palmitic acid were prepared to extract uranium from its fluids. The chemical structures of the surfactants prepared were confirmed spectroscopically. The surface activity of these surfactants was evaluated by measuring their surface tension. The cationic surfactants prepared were also tested for their biological activity against Gram-positive and Gram-negative bacteria and fungi. Subsequently, an attempt was made to use these surfactants to remove uranium from the hydrous oxide cake produced after the alkaline degradation of monazite mineral concentrate. To achieve this goal, several experiments were conducted to determine the optimal conditions for uranium extraction and stripping. Under these optimal conditions, the experimental capacity fitted the pseudo-second order kinetic model. Under the investigated optimal stripping factors of 1 M NaCl, acidified with 0.2 M conc. H2SO4, an A:O ratio of 1:1 and a contact time of 15 min, an uranium stripping efficiency of 83% was obtained for the case study. After the complete stripping process, the marketable uranium concentrate was percipitated using hydrogen peroxide as UO4H2O with an uranium content of approximately 76%, which was chemically determined and confirmed by EDAX analysis.
Michelangelo, Lambert Lombard, and the Inalienable Gift of Drawing
Authors: Wouk Edward H.
Published: March 2023

In two exceptional drawings, the Netherlandish artist Lambert Lombard responded to the famous studies of Christ’s Passion that Michelangelo produced as gifts for the Roman noblewoman Vittoria Colonna between circa 1538 and 1541. This article investigates the nature of the drawing as gift in the work of both artists, with respect to practices of giving, reciprocity, and the gift of talent. In the context of his participation in the circle around the embattled English cardinal Reginald Pole, Lombard’s drawings engage with the theological and artistic significance of Michelangelo’s studies, particularly in their depiction of salvation as a gift beyond recompense. Lombard’s response to Michelangelo reflects his position as a northern European artist working in a period of intense crisis about the function of art in systems of belief.
Textur, Transparenz und Täuschung: Blaue Papiere in Pastellen und Schriftquellen des 18. Jahrhunderts*
Authors: Brahms Iris
Published: March 2023

Blue paper was probably the most common substrate onto which pastels were painted during the eighteenth century. Nevertheless, the associated implications have not yet been researched comprehensively. Based on case studies and contemporary source documents as well as in cooperation with conservators from international collections, this article argues for incorporating the supposedly invisible into art historical analyses. The aim is also to question both the categorisation of pastel painting as drawing and its assumed “sweet” aesthetics in order to open our eyes to the versatility of pastel painting. Through an art-theoretical discussion of underlying materials and the dissecting gaze, the article reflects on artificiality, illusionism, verisimilitude, and the subjectified view.
Vija Celmins: The Art of Enervation
Authors: Adams Harrison
Published: March 2023

The painter Vija Celmins has long been an outlier in narratives of postwar American art. Extensive formal analysis of her work, from her early still lifes to her later night skies and ocean surfaces, shows that Celmins was deeply invested in the issues of time, entropy, and energy that proved crucial to her contemporaries, like Robert Smithson and Hans Haacke. However, Celmins found ways of objectifying energy through naturalistic representation and the most traditional of media, painting and drawing. She explores these issues by discovering contradictions within classical mimesis.
Orthoamide und Iminiumsalze, CIX. Umsetzungen von Orthoamiden der Alkincarbonsäuren mit Diolen, Ethandithiol und CH-aciden Nitroverbindungen
Authors: Kantlehner Willi , Edelmann Kai , Vettel Markus , Lehmann Hansjörg , Mezger Jochen , Wolfgang Frey
Published: March 2023

Orthoamides of alkyne carboxylic acids17react with 1,2- and 1,3-dioles to give vinylogous cyclic urea acetals. Analogous reactions with ethandithiol deliver vinylogous thioureas. The condensation of orthoamides17with 3,5-dimethyl-4-nitroisoxazol affords 1,1-diamino-butadiene derivatives. From nitro acetaldehyde diethylacetal and orthoamides17can be prepared reactive vinylogous urea acetals, which condense with cyano-acetic acid ester under formation of 7,7-diamino-2,4,6-hexatrienecarboxylic acid esters. 5,5-Bis(dimethylamino)-2-nitro-2,4-butadienecarboxylic acid esters, which are accessible from the orthoamides17and nitro acetic ester, cyclize to give 5-dimethylamino-pyrrole-2-carboxylic acid esters on treatment with zinc/acetic acid.
N-heterocyclic carbene-mediated oxidation of copper(I) in an imidazolium ionic liquid
Authors: Shah Sameera , Pietsch Tobias , Ruck Michael
Published: March 2023

The aerobic oxidation of copper(I) to copper(II) was studied in the ionic liquid (IL) 1-n-butyl-3-methylimidazolium acetate [BMIm][OAc]. Temperatures above 100 °C promote the deprotonation of the C2 atom of the imidazolium ring and the dissolution of CuCl. 1H and 13C NMR spectra indicate the formation of the N-heterocyclic carbene (NHC) complex [NHC] CuICl under inert conditions. Upon aerobic oxidation, air-stable blue-green crystals of [BMIm]2[CuII
2(OAc)4Cl2] precipitate in high yield and the NHC is recovered. X-ray diffraction on a single-crystal of the complex salt revealed a monoclinic structure with space group P21/n. The centrosymmetric dinuclear acetate complex [Cu2(OAc)4Cl2]2– has the paddle-wheel motif and is weakly paramagnetic.
Decoration of the [Nb6O19]8– cluster shell with six Cu2+-centred complexes generates the [(Cu(cyclen))6Nb6O19]4+ moiety: room temperature synthesis, crystal structure and selected properties
Authors: Müscher-Polzin Philipp , Hauberg Patrik , Näther Christian , Bensch Wolfgang
Published: March 2023

Mixing an aqueous solution of K8[Nb6O19]⋅16H2O with a DMSO/H2O solution of Cu(ClO4)2 · 6 H2O and cyclen at room temperature afforded crystallization of blue crystals of [(Cu(cyclen))6Nb6O19]⋅[ClO4]4·≈4H2O after slow evaporation of the solvents. The crystal structure contains the Lindqvist anion [Nb6O19]8– which is covalently expanded by six symmetry-related [Cu(cyclen)]2+ complexes via Nb-μ
2-O-Cu bridges yielding the positively charged [(Cu(cyclen))6Nb6O19]4+ cluster shell. The ClO4
− anions and crystal water molecules reside in the empty spaces of the packed clusters. The compound shows two electronic d-d transitions at energetic positions explaining the blue color.
Azido and desamino analogs of the marine natural product oroidin
Authors: Anders Lisa , Lindel Thomas
Published: March 2023

As part of our program on the synthesis and reactivity of the pyrrole-imidazole alkaloids from marine sponges, the synthesis of the 2-azido analog of the key marine natural product oroidin is reported. In addition, desaminooroidin and its alkyne analog were synthesized. Red-Al reduction of a 4-alkynylimidazole intermediate afforded the (E)-alkene, without having to pass via the (Z)-alkene. Coupling of 4,5-dibromopyrrole-2-carboxylic acid with 2-azidoimidazolylprop-2-en-1-amine was best achieved by EDCI-mediated coupling, which was superior to using the corresponding trichloromethylketone. Use of t-BuOK in acetonitrile can be recommended for the coupling of non-azidated alkenyl and alkynylimidazoles. The azido analog of oroidin underwent click cycloadditions to imidazolyltriazoles.
Pairing Transcranial Magnetic Stimulation and Loud Sounds Produces Plastic Changes in Motor Output
Authors: Germann Maria , Maffitt Natalie J. , Poll Annie , Raditya Marco , Ting Jason S.K. , Baker Stuart N.
Published: March 2023

Most current methods for neuromodulation target the cortex. Approaches for inducing plasticity in subcortical motor pathways, such as the reticulospinal tract, could help to boost recovery after damage (e.g., stroke). In this study, we paired loud acoustic stimulation (LAS) with transcranial magnetic stimulation (TMS) over the motor cortex in male and female healthy humans. LAS activates the reticular formation; TMS activates descending systems, including corticoreticular fibers. Two hundred paired stimuli were used, with 50 ms interstimulus interval at which LAS suppresses TMS responses. Before and after stimulus pairing, responses in the contralateral biceps muscle to TMS alone were measured. Ten, 20, and 30 min after stimulus pairing ended, TMS responses were enhanced, indicating the induction of LTP. No long-term changes were seen in control experiments which used 200 unpaired TMS or LAS, indicating the importance of associative stimulation. Following paired stimulation, no changes were seen in responses to direct corticospinal stimulation at the level of the medulla, or in the extent of reaction time shortening by a loud sound (StartReact effect), suggesting that plasticity did not occur in corticospinal or reticulospinal synapses. Direct measurements in female monkeys undergoing a similar paired protocol revealed no enhancement of corticospinal volleys after paired stimulation, suggesting no changes occurred in intracortical connections. The most likely substrate for the plastic changes, consistent with all our measurements, is an increase in the efficacy of corticoreticular connections. This new protocol may find utility, as it seems to target different motor circuits compared with other available paradigms.

SIGNIFICANCE STATEMENTInduction of plasticity by neurostimulation protocols may be promising to enhance functional recovery after damage such as following stroke, but current protocols mainly target cortical circuits. In this study, we developed a novel paradigm which may generate long-term changes in connections between cortex and brainstem. This could provide an additional tool to modulate and improve recovery.
Severely Attenuated Visual Feedback Processing in Children on the Autism Spectrum
Authors: Knight Emily J. , Freedman Edward G. , Myers Evan J. , Berruti Alaina S. , Oakes Leona A. , Cao Cody Zhewei , Molholm Sophie , Foxe John J.
Published: March 2023

Individuals on the autism spectrum often exhibit atypicality in their sensory perception, but the neural underpinnings of these perceptual differences remain incompletely understood. One proposed mechanism is an imbalance in higher-order feedback re-entrant inputs to early sensory cortices during sensory perception, leading to increased propensity to focus on local object features over global context. We explored this theory by measuring visual evoked potentials during contour integration as considerable work has revealed that these processes are largely driven by feedback inputs from higher-order ventral visual stream regions. We tested the hypothesis that autistic individuals would have attenuated evoked responses to illusory contours compared with neurotypical controls. Electrophysiology was acquired while 29 autistic and 31 neurotypical children (7-17 years old, inclusive of both males and females) passively viewed a random series of Kanizsa figure stimuli, each consisting of four inducers that were aligned either at random rotational angles or such that contour integration would form an illusory square. Autistic children demonstrated attenuated automatic contour integration over lateral occipital regions relative to neurotypical controls. The data are discussed in terms of the role of predictive feedback processes on perception of global stimulus features and the notion that weakened “priors” may play a role in the visual processing anomalies seen in autism.

SIGNIFICANCE STATEMENTChildren on the autism spectrum differ from typically developing children in many aspects of their processing of sensory stimuli. One proposed mechanism for these differences is an imbalance in higher-order feedback to primary sensory regions, leading to an increased focus on local object features rather than global context. However, systematic investigation of these feedback mechanisms remains limited. Using EEG and a visual illusion paradigm that is highly dependent on intact feedback processing, we demonstrated significant disruptions to visual feedback processing in children with autism. This provides much needed experimental evidence that advances our understanding of the contribution of feedback processing to visual perception in autism spectrum disorder.
C VİTAMİNİNİN 2-KETO-L-GULONİK ASİT MOLEKÜLÜNDEN ÜRETİMİ İÇİN FARKLI METOTLARIN ARAŞTIRILMASI
Authors: MUTLU Ceren , CANDAL USLU Cihadiye , ERBAS Mustafa
Published: March 2023

Araştırmada farklı metotlar kullanılarak 2-keto-L-gulonik asit molekülünün esterifikasyonu ve laktonizasyonu ile ülkemizde ilk defa C vitamini üretiminin gerçekleştirilmesi amaçlanmıştır. Bu amaç doğrultusunda C vitamininin üretimi için dört metot, C vitamininin sodyum tuzunun üretimi için dört metot ve C vitamininin potasyum tuzunun üretimi için ise bir metot olmak üzere toplamda dokuz farklı metot kullanılarak denemeler yapılmıştır. Elde edilen bulgulara göre; doğrudan C vitamini üretimi için %36.07 verim ile Metot-I’in, C vitamininin sodyum tuzu üretimi için %58.56 verim ile Metot-VIII’in ve C vitamininin potasyum tuzu üretimi için ise %28.22 verim ile Metot-IX’un kullanılabileceği değerlendirilmiştir.
INTERSECCIONALIDADE E MUDANÇAS CLIMÁTICAS: UM ESTADO DA ARTE SOBRE O RACISMO AMBIENTAL NO BRASIL E SEUS OUTROS
Authors: Monteiro Duarte Bruno , Thais Cosmo da Silva Nathália , Da Silva Lopes Ivonete
Published: March 2023

O presente artigo busca explorar o potencial da interseccionalidade como ferramenta analítica para a compreensão das atuais dimensões das mudanças climáticas. Traz resultados do estado da arte acerca da interface dos temas racismo ambiental e suas interseccionalidades em obras nacionais e internacionais que abordam os efeitos das mudanças climáticas. A pesquisa foi feita nas plataformas SciELo, Scopus e Latindex, no período entre 2012 e 2021, na qual selecionou-se um total de quinze trabalhos classificados como elegíveis para a presente análise. Concluiu-se que nos últimos anos está crescendo o número de trabalhos, no entanto ainda existem muitas lacunas, principalmente em pesquisas sobre o contexto brasileiro, que tendem a não reconhecer as peculiaridades das relações dos diferentes sujeitos e grupos sociais com as mudanças climáticas. Assim sendo, a ausência de pesquisas científicas em torno dessa temática impossibilita a construção de ferramentas capazes de analisar a complexidade das injustiças presentes na sociedade brasileira.
Una mirada crítica a la economía mundial. Reseña del libro: Contra los zombis: Economía política y la lucha por un futuro mejor de Paul Krugman
Authors: Arias-Sosa María Jesús
Published: March 2023

This book review presents the main topics covered in the book Arguing with zombies" by Paul Krugman, which compiles some of the articles published by the author throughout his professional career. From his critical approach to several negative ideas coonected to problems in the international economy in fields such as politics, tax reforms and action against climate change. This review links these thematic areas with the discipline of international trade and business.
Macromolecular reorganization as a basis for converting cellulosic hydrogels into sustainable plastics
Authors: Wu Dong , Qian Xueren , Shen Jing
Published: March 2023

The development of lignocellulose-derived sustainable plastics is an important strategy for a greener future. Cellulosic hydrogels, which are readily generated from a cellulosic source (e.g., wood pulp), can be converted into high-strength plastics by hot-pressing. In this process, cellulose macromolecules are fluidized and reassembled, leading to significant change of bonding interactions and structural characteristics. This interesting concept would open the door for new possibilities of bioproduct design.
Enhancing the alkaline peroxide mechanical pulp strength by cationization with 3-chloro-2-hydroxypropyl trimethyl ammonium chloride
Authors: Wang Xiaohui , Liu Zhongming , Wang Shoujuan , Kong Fangong , Yang Guihua , Fatehi Pedram , Lucia Lucian A.
Published: March 2023

Alkaline peroxide mechanical pulp (APMP) is a newly emerging high yield pulp (HYP) with numerous advantages. However, the drawback of the alkaline peroxide mechanical pulp from untreated plant biomass is its poor network strength. In this work, 3-chloro-2-hydroxypropyl trimethyl ammonium chloride (CHPTAC) modification was proposed to enhance pulp network strength by fiber surface modification that could enhance fiber bonding. Three factors were analyzed by response surface methodology (RSM) to optimize treatment conditions based on factorial designs. The results showed that the optimal conditions were CHPTAC dosage of 0.8% (oven-dry pulp), NaOH dosage of 0.1% (oven-dry pulp), and pulp concentration of 8%. The modified pulp fibers were characterized by elemental analysis, charge density analysis, Fourier transform infrared spectroscopy (FTIR), thermal gravity analysis (TGA), and internal bond strength analysis, as well as zero span tensile analysis. The physical strength of the modified APMP pulp was increased in terms of tensile index, tear index, and burst index. After modification, the tensile index, tear index, and burst index increased by 35.3%, 29.2%, and 16.7% respectively. The internal bonding strength increased by 144.4%; however, the increase of zero span tensile index of modified pulp fibers was insignificant.
Combined effect of zinc borate and coupling agent against brown and white rot fungi in wood-plastic composites
Authors: Altuntas Ertugrul , Yılmaz Esra , Salan Tufan , Alma Mehmet Hakkı
Published: March 2023

Fungal resistance was investigated for wood-plastic composites (WPCs) containing zinc borate, maleic anhydride grafted polyethylene (MAPE) as a coupling agent, wood fiber (Pinus sylvestris), and high-density polyethylene (HDPE). Decay resistance, water absorption, and surface hardness (Shore D) of the WPCs were tested. The reinforced wood-plastic composites were exposed to brown-rot fungus (Coniophora puteana, Postia placenta) and white-rot fungus (Trametes versicolor) in agar tests. The results showed that zinc borate improved the decay resistance of the WPCs against brown and white rot fungus according to their weight losses. Moreover, the water absorption and surface hardness tests indicated that the physical properties of the composites were weakened after fungal decay tests. The usage of MAPE and zinc borate alone or together was effective against both rot fungus species in WPCs. The synergy of 1% zinc borate and 3% MAPE in WPCs could considerably increase the fungal attack resistance. Scanning electron microscopy (SEM) revealed that both brown and white rot fungus attacked the surface of WPCs samples without both MAPE and zinc borate.
Tensile, barrier, dynamic mechanical, and biodegradation properties of cassava/sugar palm fiber reinforced cassava starch hybrid composites
Authors: Edhirej Ahmed , Sapuan S. M. , Jawaid Mohammad , Zahari Nur Ismarrubie
Published: March 2023

The hybrid composite was prepared from cassava bagasse (CB) and sugar palm fiber (SPF) by casting technique using cassava starch (CS) as a matrix and fructose as a plasticizer. The chemical composition and physical properties of SPF and CB were studied in this work. SPF was added at different loadings of 2, 4, 6, and 8% dry starch to the CS/CB composite films with 6% CB. The addition of SPF influenced the hybrid properties. It was observed that the addition of 6% SPF to the composite film increased the tensile strength and modulus up to 20.7 and 1114.6 MPa, respectively. Also, dynamic-mechanical properties of the hybrid composites were investigated using a DMA test. The incorporation of SPF increased the storage modulus (E’) value from 0.457 GPa of CS to 1.490 GPa of CS-CB/SPF8 hybrid composite film. Moreover, the incorporation of SPF slightly decreased the water vapor permeability (WVP) compared to the CS/CB composites film. It can be concluded that the incorporation of SPF led to changes in cassava starch composite film properties, potentially improving the bio-degradability, WVP, and mechanical properties of the film. Based on its excellent properties, CB/SPF-CS hybrid composite films are suitable for various purposes such as packaging, automotive, and agro-industrial applications, at lower cost.
Biodegradation properties of wood-plastic composites containing high content of lignocellulosic filler and zinc borate exposed to two different brown-rot fungi
Authors: Altuntas Ertugrul , Yilmaz Esra , Salan Tufan , Alma Mehmet Hakki
Published: March 2023

The decay resistance of zinc borate-reinforced wood-plastic composites (WPCs) was studied against two types of brown-rot fungi (Rhodonia placenta and Coniophora puteana). The WPCs with 70% wood fibers (Pinus sylvestris L.) were reinforced with 1% and 2% zinc borate. The reinforced WPCs were exposed to a decay test according to the EN 113 (1996) standard. The composite samples were characterized by their weight losses and water absorption capacity (WAC) as well as by Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), thermogravimetric analysis (TGA), and differential thermal analysis (DTA). The weight losses and WAC results showed that zinc borate improved the decay resistance of the WPCs to a certain degree against brown rot fungi. The FTIR and SEM results showed that the brown rot fungi attacked the WPCs. It was concluded that the use of 1-2% zinc borate provided resistance to fungal attack on WPCs to a certain degree.
Reconstruction and reinterpretation as post-secular bricolage phenomena
Authors: Gipp Konstantin
Published: March 2023

The article is devoted to the analysis of the mechanisms of formation of modern religious post-secular consciousness. The principal feature of this consciousness is the combination of religious and secular elements, which creates, according to the apt expression of the religious scholar Dm. Uzlaner, post-secular hybrids. It seems that the main mechanism for creating such hybrids is bricolage. Post-secular bricolage manifests itself in the phenomena of reconstruction and reinterpretation. The process of reconstruction is necessarily involved in the fixation and rationalization of religious tradition and has two components. Firstly, it is an appeal to the remnants of tradition preserved in folk beliefs and practices, and secondly, it is the use of materials of scientific ethnographic research, both conducted in the previous period and modern ones. The result of this process is the emergence of "neotradition", when the reconstruction of lost and forgotten practices based on scientific approaches leads to the emergence of post-secular hybrids, where the religious form of the recreated phenomena is combined with the secular goals of this activity and the secular understanding of their content. There is also reflection, comprehension of traditional beliefs, a certain theology of tradition is created, but in the process of this, concepts of secular scientific (or paranientific) language are often used, applied according to the principle of "everything will do", i.e., according to the principle of bricolage. Reinterpretation affects tradition more deeply. During reinterpretation, such a transformation of the religious system occurs, in which the primary system remains in the final product of the process as an element, and the original system is radically rethought, the product of reinterpretation is not completed, it is open for further changes. The reinterpretation product can also be characterized as a post-secular hybrid. Our proposed analysis of the features of the functioning of the mechanism of intellectual bricolage in the post-secular era, consideration of the phenomena of reconstruction and reinterpretation in this perspective gives, in our opinion, new tools for studying the processes of formation of modern religious consciousness.The conclusions of the article, in addition to the analysis of published studies of the modern religiosity of the peoples of the Russian Federation, are also based on field studies conducted by us since 2013 in the Nenets, Yamalo-Nenets Autonomous District and some other regions of the Russian Federation.
Secularisation and post-secularity (on the discussion about the modern conceptual framework of religious studies)
Authors: Antonov Konstantin , Polskov Konstantin , Smirnov Mikhail
Published: March 2023

This discussion deals with the issue of validity of the methodological significance of the concept of postsecularity for the study of religions. In this regard, it touched upon the theoretical description of such phenomena as secularisation, secularity, bricolage, hybridisation, privatisation and deprivation of religion, as well as a number of other issues in the sphere of scientifi c discourse on religions.
The Divine Beauty concept in st. Basil the Great: semantic function and origin
Authors: Ovcharenko Artem
Published: March 2023

At present, the place of beauty in Christian theology, in particular, in theology, is being actively discussed in Russia. At the moment, there is a lack of historical research devoted to the reconstruction of the moral and theological Beauty category in the Eastern Patristic. The article deals with the Divine Beauty concept in the works of St. Basil the Great. The issue has not yet been investigated. There are 15 fragments where Divine Beauty concept is used. In all cases it functions as part of the metaphor of the Divine Beauty optical perception and is merely one of its semantic components. Apart from Divine Beauty, other semantic components form out a metaphor, which describe not beauty itself but its influence on a subject contemplating. In particular, methafor describes anthropological organ of contempleting, feelings the subject is expierencing, etc. St. Basil does not assign a logical content to the Divine Beauty concept , but endows its meaning through interaction with other semantic components in the metaphor. The origin of the concept in St. Basil is considered. The conclusion is that the idea of the beauty of God and the main term (κάλλος) are taken in the Septuagint through the mediation of Origen. He finds a metaphor as a means of philosophical elaboreting the concept in the "Symposium"of Plato and also, probably, in "Ennaeades" I 6 and V 8 of Plotinus. St. Basil places the metaphor of the optical Divine Beauty perception in various theological contexts, which have no entirely correspondence to anyone of the previous authors. So, St. Basil seems to have borrowed from Origen Christological and moral-ascetic context of using the metaphor, but expands the using to protology and eschatology, which corresponds Plato. In the using of the Divine Beauty concept, St. Basil is to be considered not as a philosophical borrower, but rather as a creator, who shapes new synthesis on the basis of the previous thought.
The concept of new religious consciousness as a political act: remarks on the influence of D. Merezhkovsky’s ideas on the elaboration of N. Berdyaev’s philosophy
Authors: Pavlov Ilia
Published: March 2023

The paper “The Concept of New Religious Consciousness as a Political Act: Remarks on the Influence of D. Merezhkovsky’s Ideas on the Elaboration of N. Berdyaev's Philosophy” claims to identify the influence of Merezhkovsky’s teaching on the development of Berdyaev’s philosophy using the methodology of intellectual history and the history of concepts. The author shows the discrepancies in current Berdyaev studies analyzing the place of concepts taken by Berdyaev from Merezhkovsky’s ‘new religious consciousness’ (criticism of ascetic Christianity, the idea of ‘the third testament’ and others) in Berdyaev’s philosophy. While some researchers interpret these concepts as just metaphors, others understand them as fundamental for Berdyaev’s thought. According to the author, this problem turns connected with the insufficiency of the methodology used by scholars, which does not allow to draw a consistent connection between the context and the internal logic of philosophical thought. The author argues that this problem can be solved with using the methodology of intellectual history, which considers philosophical texts to be actions (Skinner) and analyzes terms as dynamic, redefined concepts, for the content of which a political struggle is being waged (Lübbe). Outlining the intellectual history of the ‘new religious consciousness’, the author shows how this expression introduced in Merezhkovsky’s L. Tolstoy and Dostoevsky becomes a concept redefined in discussions and used in a polemical way. Berdyaev played an important role in this conversion, developing the ‘new religious consciousness’ as a consistent doctrine. Approaching Merezhkovsky’s group, Berdyaev understands the ‘new religious consciousness’ as connected with Merezhkovsky’s ideas, but redefines its metaphysical content, linking it with spiritualistic personalism. Merezhkovsky responds Berdyaev by agreeing to recognize him as the main philosophical theorist of the ‘new religious consciousness’ if Berdyaev joins Merezhkovsky’s religious and political project. Although Berdyaev distances himself from religious and political practices of the Merezhkovsky family, he nevertheless continues to use the expression ‘new religious consciousness’ while claiming his teaching to be the genuine ‘new religious consciousness’. In The Meaning of a Creative Act (1916) Berdyaev formulates a complete metaphysical doctrine based on the intuitions expressed in an earlier polemic. The book publication was unequivocally perceived by Merezhkovsky's circle as Berdyaev’s claim to redefine the ‘new religious consciousness’. The author concludes that it is precisely this approach, considering the ‘new religious consciousness’ as a political concept, that allows to consistently trace the influence of this concept on the internal logic of Berdyaev’s philosophy.
The programme of the fresco cycle by Benozzo Gozzoli in the choir of the church of San Francesco in Montefalco
Authors: Kulikova Elena
Published: March 2023

The frescoes on the subjects of the life of St. Francis in the choir of the main Franciscan church in Montefalco were painted by Benozzo Gozzoli in 1452. For a long time they remained poorly studied, and the program of the cycle was unclear. Studies of the end of the XX century indicate a steadily increasing interest in the artist's work, including his monumental paintings in Montefalco. The subject of this article is to clarify the program design of the chapel, which probably belonged to Fra Jacopo of Montefalco, a Franciscan theologian and rector of the church. The appearance of rare plots, atypical for earlier and later Franciscan cycles in Italy, and a careful analysis of each composition in connection with the literary tradition of the Franciscan order, allowed us to more fully substantiate that the idea of "Francis as another Christ" (Franciscus alter Christus) was consistently carried out in the chapel program. The cycle executed by Gozzoli includes twelve fresco compositions and a stained glass window. All of them represent twenty episodes from the life of St. Francis from his birth to his ascension to heaven, which are accompanied by explanatory comments in Latin. Many of the scenes are multi-episode, reflecting the passion for storytelling in the middle of the XV century and the desire to bring all the details and details necessary to explain the plot. The analysis of the compositions in comparison with hagiographic literature allows us to conclude that the compilers of the program mainly relied on three main texts about the life of the saint: the first and second lives of Thomas by Chelan, as well as the Great Legend by St. Bonaventure. The choice of subjects and the overall design of the chapel emphasize the living ministry of the saint, and also reflect another, more important by this time, Franciscan idea – the glorification of Francis as another Christ. The depictions of scenes telling about the birth, childhood and about the early years of Francis' life, appearing in the pictorial tradition for the first and last time, make this painting cycle truly unique.
Modification of the terrestrial albedo following the absorption of the solar radiation by the dark artificial surfaces and its influence on the green house effect
Authors: Ben Slama Romdhane
Published: March 2023

In this article, it is implicated another factor other than that greenhouse gases in global warming. Indeed, CO2 and its equivalents retain only infrared radiation of long wavelengths. These are issued naturally by the earth at all times, but recently under the pretext of prestige or fashion, in hot countries is added the paintings of buildings in dark color, black in this case. These colors affect the albedo coefficient by the absorption of solar radiation and the emission of far infrared radiation that cannot cross the greenhouse gases, so partly reflected towards the earth causing global warming. Global action on reducing greenhouse gas emissions should therefore be complemented by a reduction in the dark color areas created by man.
On the singular series in the Jiang prime k-tuple theorem
Authors: Xuan Jiang Chun
Published: March 2023

Using Jiang function we prove Jiang prime k-tuple theorem. We find true singular series. Using the examples we prove the Hardy-Littlewood prime k-tuple conjecture with wrong singular series. Jiang prime k-tuple theorem will replace the Hardy-Littlewood prime k-tuple conjecture.
Nuclear fusion: the management prospects
Authors: Konstantinov Stanislav
Published: March 2023

The article discusses the prospects of controlled nuclear fusion. The operating installations of cold nuclear fusion and the tunnel effect are presented, which leads to the abandonment of the Rutherford planetary model of the atom and the recognition of Lev Sapogin’s Unitary Quantum Theory.
Electron impact ionization of helium, neon and argon at intermediate energies
Authors: Campeanu RI
Published: March 2023

With a relatively simple distorted-wave model, in which the ejected and the scattered electrons see different residual systems depending on their energies, in this paper we show the calculation of the CPE cross sections for electron impact ionization of He, Ne and Ar. Combined with the ‘maximum interference’ exchange approximation, this model gives results which for Ne and Ar are in better agreement with the experiment than the other existing theoretical models.
Four-dimensional algorithm for studying geological features on mars using high-resolution stereo camera
Authors: Marghany Maged
Published: March 2023

In this work is developed a new four-dimensional algorithm for studying geological features on Mars using a high-resolution stereo camera. The 4-D B-spline model has been implemented to reconstruct 4-D geological features such as Mars craters. The B-spline solid algorithm is implemented to simultaneously trace tag craters in sequences of high-resolution stereo camera slices by completely identifying B-spline surfaces which ally themselves with attached pixels. The study shows that B-spline can identify flow patterns from larger craters to the small crater. The Marghany 4-D algorithm of great polygon pattern flows is reconstructed using a 4-D B-spline. In conclusion, integration between the Marghany 4-D B-spline algorithm and the high-resolution stereo camera shows excellent promises for implementing Marghany 4-D algorithm in remote sensing applications.
On chip micro-batteries: a giant leap towards miniaturization
Authors: Biswas Rajib
Published: March 2023

On chip batteries refer to miniaturized version of powerhouse embedded on a chip. This versatile powerhouse can efficiently deliver tiny medical device without being reliant on external sources. The fabrication process of such on-chip batteries is totally different from conventional batteries. Miniaturization as well as efficient delivery of prudent magnitude of potential are some real challenges. This communication briefly overviews on-chip batteries and their potential in future technologies—aided by a concise appraisal on fabrication.
On radiation protection and climate change – a summary
Authors: Kabuswa Davy Manyika , Hamweendo Agripa , Jairous Banda Peter , Morris Manyika Kambeu , Matindih Levy Kahyata
Published: March 2023

planned for construction as well as those at proposal stage. However, the ethics of nuclear power is increasingly under challenge due to the incidents at the Chernobyl and Fukushima Daiichi nuclear power plants, and concerns over radioactive discharges, safe management of radioactive waste and lack of an operational repository for spent nuclear fuel. Central to these concerns is the perceived unique radiological risk of nuclear power. But in a world where Climate Change presents a threat to the entire planet, is nuclear power and the associated radiological risk not ethical? Exploring the interplay between climate change ethics and the International Commission on Radiological Protection (ICRP)’s System of Radiological Protection, we consider the major contribution that new nuclear power stations can make to climate change mitigation, through decarbonisation of power systems, and finally unpick the case for nuclear power in this new world of climate change ethics.
A hon- és rendvédelmi szervek személyi állományának mozgásszervi állapotfelmérése, sérülés megelőzése és sérülés utáni rehabilitációjának lehetősége a mesterséges intelligencia felhasználásával
Authors: Uhlár Ádám
Published: March 2023

Összefoglalás.

A fizikai képességek magas színvonala nélkülözhetetlen a hon- és rendvédelmi
szervek személyi állományának tagjai számára. A hadrafoghatóság, bevethetőség
alapvető feltétele a fizikai, mozgásszervi egészség és edzettség megléte. Az
állomány felmérésére jelenleg alkalmazott fizikai tesztelési eljárások a
sérülések megelőzésére, a teljesítmény optimalizálására kevésbé alkalmasak,
pedig a hosszú távon fenntartható magas szintű teljesítmény a szervezeti
hatékonyság és a produktivitás kulcseleme. A hon- és rendvédelmi területen
dolgozó szakemberek kiképzési, oktatási költsége jelentős anyagi ráfordítás
mellett valósítható meg, így a sérüléseik megelőzése, fizikai alkalmasságuk
fenntartása igen fontos feladat. Külföldi példák alapján a biomechanikailag
helytelen mozgások kiszűrése hozzájárul a sérülések megelőzéséhez.

Summary.

High level of physical fitness is an essential requirement towards the members of
armed forces, firefighters, law enforcement services and other government
services. Physical condition assessment is routinely used to determine
operational readiness of these units, however, these routine tests are not
suited for injury prevention. A musculoskeletal disorder, or injury can
negatively influence the success of the mission and cause a long-term disability
and inefficient productivity. Therefore, specific tests are required to measure
musculoskeletal properties which play a significant role in the mechanisms of
injury in order to screen potential injury and apply preventive measures.
Several countries apply movement analysis tests and functional movement
screening for their armed forces. These tests can efficiently predict the
possibility of musculoskeletal injuries, thus keep soldiers in service. In most
cases at the operational level specific positions mandate special physical
requirements from the subjects. Task-specific testing methods provide a
comprehensive report about the subjects’ current physical state. Our research
team have previously developed a user-friendly, simple and cost -effective
movement analysis system that can monitors and records the subjects’ movements
with artificial intelligence-based Kinect Azure camera without any markers,
which enables state of the art measurement, documentation and can avoid
subjective evaluation or conformation bias. This method is able to provide a
biomechanical report about the subject during key movement patterns such as
walking, running, jumping, or squatting. The system can detect the incorrect and
the well-executed technics. A corrective treatment plan is also provided if
sub-optimal movement patterns are recognized. During musculoskeletal
rehabilitation there is a need for objective testing and retesting in order to
provide optimal quantity and quality of training loads to avoid further injury.
Repeated testing provides feedback about successful rehabilitation process.
The social value of Spanish among transnational Latin American families in Italy
Authors: Bonomi Milin
Published: March 2023

The aim of this paper is to explore the value of Spanish through the study of the ideologies and subjectivities represented in the discursive practices of some transnational Latin American families that underwent processes of diaspora to Italy. In particular, the goal is to focus on their family language policies by exploring the relationship between linguistic uses, identities, and ideologies. In the current context of neoliberalism, many scholars have highlighted how language has become a commodity (Holborow, 2007; Block, Gray, and Holborow, 2012; Heller and Duchêne, 2012) or, in terms of Bourdieu (1991), a symbolic capital, i.e., a system of values that social actors associate with a particular linguistic use in a specific economic and political context, determined by certain power relations. In global contemporary diasporas, in line with the colonial era (Mignolo, 1992; Heller and McElhinny, 2017), the perceptual and evaluation schemes of linguistic practices continue to be strongly determined by the centre-periphery relationship. This same language regime is reflected in the social value of Spanish that emerges in the discursive practices of Hispanic families in Italy. The data, in effect, demonstrate a clear perceptual inequality between the Spanish of the diaspora, marginalised by its condition of minority language and delegitimised for representing a deviation from the monoglossic norm (Silverstein, 1996), and the central languages (‘standard’ varieties of Spanish and Italian), understood as convertible resources in the global linguistic market and more desirable in terms of social mobility.
Family, school, and crossroads
Authors: Srhir Adil Moustaoui , Llompart Esbert Júlia
Published: March 2023

In this article, we analyse the language regimentation of multilingual repertoires and plurilingual practices of young people of Moroccan origin in three different areas of Spain – Barcelona, Galicia, and Madrid. By focusing on the family and the school as two highly interconnected settings (Heller, 2012) which have an impact on their socialisation trajectories and on their development of functional bi/multilingualism – and, thus, on their linguistic practices – we consider, on the one hand, how these young people position themselves regarding multilingualism and the conception of a local and transnational plurilingual speaker and, on the other, how they invest their linguistic repertoire in the transnational space or what Hornberger (2005) calls the ‘implementational spaces’ of multilingual practices. Following a sociolinguistic and discursive critical analysis of the data collected (ethnographic data, the results of several didactic activities, focus groups and interviews), the results point out how family and school discourses surrounding multilingualism contribute to maintaining a situation of multilingualism, which includes both the heritage languages and the institutional and national languages and varieties. Moreover, the results show the ways these plurilingual youth navigate this multilingualism but also how they reconstruct it by deploying hybrid and creative practices.
Family Language Policy and the family sociolinguistic order in a neoliberal context
Authors: Moustaoui Srhir Adil , Poveda David
Published: March 2023

This issue focuses on Family Language Policies (FLP) in different European settings, particularly in Spain, and examines how the management of intimate communication practices and ideologies intersects with the sociopolitical, economic, educational, cultural, transnational imperatives that shape the contemporary neoliberal social order. The five empirical studies build on the fast growing and developing literature published under the FLP label, but, at the same time, the articles attempt to move current work forward by incorporating less explored issues in FLP research or by taking up some of the methodological and conceptual challenges for the field that have been recently pointed out (see below). This introductory essay presents these issues and, from our perspective, connects a comprehensive review of FLP research with other conceptual threads that could be incorporated into this tradition. The essay closes with presenting each of the research articles that are part of this issue.
DESIGN AND HEAT TRANSFER PERFORMANCE OF FLAT-PLATE HEAT PIPE WITH LEAF VEINS
Authors: Liu Fengrui , Li Jinwang , Li Jiyuan
Published: March 2023

Inspired by the principle of heat dissipation of plant leaves, a bionic flat-plate heat pipe with fractal grooves was designed according to the veins of leaves. The working principle of the bionic flat-plate heat pipe is described, and the three-dimensional model of the bionic flat-plate heat pipe is established. Based on the volume of fluid (VOF) multiphase flow model and the continuum surface force (CSF) surface tension model, the steady-state numerical simulation of its working process is carried out. The experimental pieces of leaf veins flat-plate heat pipe were made and the heat transfer performance was studied. The results show that the working principle of the bionic flat-plate heat pipe is feasible, the flat-plate heat pipe with bionic structures developed in this study can be successfully start-up. The bionic flat-plate heat pipe has high heat transfer efficiency and working fluid reflux efficiency, which can effectively reduce the maximum temperature of the flat-plate heat pipe within a certain heating power range. However, when the heating power is 100 W, the heat pipe appears to be dried out. The height of the vapor chamber will affect the maximum temperature of the heat pipe. The optimal height of the vapor chamber of the heat pipe is 3-5 mm, and the specific value needs further discussion.
MEASUREMENT OF EXTERNAL GEOMETRIC FEATURE PARAMETERS OF GIS EQUIPMENT BASED ON TERRESTRIAL 3D LIDAR
Authors: Li Xin , Fu Bin , Bi Teng , Chen Guoyan , Yu Ting , Wu Zonghai , Ye Qing
Published: March 2023

The deformation of the external geometric features of the gas insulated metal-enclosed switchgear is an important factor that threatens its safe operation. Mastering the parameter measurement methods of the external geometric features of GIS equipment is the key to guiding its operation and maintenance. In this article, a measurement method of geometric characteristic parameters of GIS equipment busbar barrel and foundation based on terrestrial 3D lidar is proposed, and the correctness of the measurement method is verified by on-site measurement comparison. The verification results show that the measurement method proposed in this article can effectively calculate the axial length, radial length, and deflection of the busbar barrel of GIS equipment, as well as the inclination of the foundation. The research results can provide a reference for the noncontact live measurement of the external geometric characteristic parameters of GIS equipment.