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The solid state photodimerization of ethyl coumarin-3-carboxylate and its 6-Cl and 6-Br (1a-c) derivatives as well as the methyl and ethyl alcoholysis derivatives of ethyl coumarin-3-carboxylate photodimer are reported in the context of crystal engineering. Ethyl coumarin-3-carboxylates photodimerize topochemically to form anti head-to-tail stereoisomers (2a-c). The extent of lactone methanolysis of 2a depends on the boiling temperature of the solvent to produce 2-(2-hydroxyphenyl)-3-oxo-8bH-4-oxa-cyclobuta[a]naphthalene-1,1,2a-tricarboxylic acid 1,2a-diethyl ester 1-methyl ester (3a) and 2,4-bis-[(2-hydroxyphenyl]cyclobutane-1,1,3,3-tetracarboxylic acid diethyl ester dimethyl ester (4a) in 1:2 proportion, whereas the ethanolysis of 2a only yields 2-(2-hydroxyphenyl)-3-oxo-8bH-4-oxa-cyclobuta[a]naphthalene-1,1,2a-tricarboxylic acid triethyl ester (5a). The molecular structure of 2a-c and 3-5a were elucidated by 1H and 13C NMR spectroscopy. Also the molecular and supramolecular structures of 2a,b and 3,4a were studied by X-ray diffraction. Most of the C-H...X (X = O, Ph), π...π and dipolar interactions in the photodimers 2a,b and derivative 3a are preserved from the corresponding original coumarin monomers. Thus the supramolecular structure of ethyl coumarin-3-carboxylate is conserved through this group of compounds as if they would have a "supramolecular memory". [image omitted] [ABSTRACT FROM AUTHOR]

Nine tetraalkylammonium salts, with R = Me, Et, nPr and nBu, of four different carboxylic acids, namely isophthalic acid, 5-nitroisophthalic acid, trimesic acid and pyromellitic acid (1,2,4,5-benzenetetracarboxylic acid), have been prepared and their supramolecular structures analyzed by X-ray crystallography. The [RCOOH...HOOCR] homodimeric motif characteristic for carboxylic acids has not been detected, but instead, in all compounds a [RCOOH...OOCR]- unit was present. The hydrogen-bonding geometries and interaction energies of the different discrete and water-expanded hydrogen-bonding patterns formed between the carboxyl and the carboxylate group have been analyzed systematically by theoretical calculations at the MP2/6-31G(d,p) level of theory. Carboxylates are promising candidates for crystal engineering and [O-H...O]- interactions play an important role for the structural organization and chemistry of biomolecules. [image omitted] [ABSTRACT FROM AUTHOR]

Hydroxybenzylamines are prevalent in drugs and bioactive molecules, including various antimalarial and anticancer drugs. α-tertiary alkylation of amines impacts drug-target interactions significantly through their influence on basicity and lipophilicity. Traditional N-alkylation methods, especially for α-tertiary amines, suffer from limitations due to high energy barriers from steric hindrance. In this work, we leverage visible light irradiation to enable the organoboronic acid addition to sterically hindered ketimines in the excited state. Notably, it overcomes the limitations of the well-explored Petasis reaction, which is restricted to aldimines due to the high energy barrier associated with ketimines (51.3 kcal/mol). This three-component coupling of aliphatic amines, o-phenolic ketones, and organoboronic acids delivers diverse α-tertiary o-hydroxybenzylamines (77 examples, yields up to 82%) with broad functional group tolerance. The light-driven 1,3-boronate rearrangement introduces quaternary carbon centers adjacent to the amine moiety to enable late-stage functionalization of complex bioactive molecules. This versatile tool for complex amine synthesis holds significant potential for accelerating advancements in drug discovery, chemical biology, and materials science research. Traditional N-alkylation methods, especially for α-tertiary amines, suffer from limitations due to high energy barriers from steric hindrance. In this work, the authors leverage visible light irradiation to enable organoboronic acid addition to sterically hindered ketimines using a three-component coupling of aliphatic amines, ortho-phenolic ketones, and organoboronic acids. [ABSTRACT FROM AUTHOR]

In gratitude toward those who have paved the way for a multitude of academic writing genres, we continue to de-stabilize writing conventions to propose, so as to put forward, ways of writing ethnographic research differently. We do this through an exploration of how the poetics of materiality can be written in ethnographic research. By means of Bachelard's work on material imagination and poetic instants, as well as re-visiting ethnographic clay-and-wood fieldwork, we suggest the subgenre of vertical ethnography. This is a genre that enables a shift from the often taken-for-granted thick description, which focuses on interpretations of meaning of what happened in the field, to deep inscription, a writing that breaks through the surface when our entanglement with materiality is awakening poetic sensibilities, enabling a vertical writing of ethnographic accounts. [ABSTRACT FROM AUTHOR]

Antibiotic resistance is currently becoming a more serious threat to global health, especially in severe nosocomial infections treatment by multidrug-resistant bacteria. This research provides a new way of synergizing green-synthesis for zinc oxide quantum dots (ZnO-QDs with hexagonal crystals) that are 7 nm in diameter and zero-valent Ag cubic crystals that are 67 nm in size embedded with nitazoxanide substrate (NAZ). Instrumental characterization like SEM, TEM, EDAX, and FT-IR and comprehensive antimicrobial studies were conducted to study the incorporation behavior of composites based on Ag NPs/ZnO QDs/NAZ. This combination has not been hitherto addressed anywhere else in the published literature, as well as commercial viability. In this context, we have precisely tuned nanoparticle to nitazoxanide ratio for designing the formulation demonstrating potent activity against MDR infections. By employing nitazoxanide as a scaffold and careful decoration thereof antimicrobial potency has been unlocked overriding conventional therapies. In addition, Ag NPs/ZnO-QDs/nitazoxanide (G6) formula exhibited a therapeutic efficacy span of 96.15 ± 1.68% to 99.57 ± 0.20% against MDR human infections post 48 h incubation; a breakthrough in therapeutic efficacy levels has been achieved by our method. Accordingly, ZnO QDs/Ag NPs/NAZ composite offered potential multidrug resistant human pathogens as a new trend of revolutionizing antimicrobial treatment. Schematic diagram of synthesis routev ZnO quantum dots/Ag NPs/Nitazoxanide Triumphs composite NPs. [ABSTRACT FROM AUTHOR]

In this article, we focus on gender and class to investigate worktime domestic labour. Methodologically, we extend a novel, comparative critical realist method in which occupation-based and gendered positions in productive and reproductive labour are foregrounded. By building theoretical connections between labour process conditions and collective rule-following practices, we illustrate how inequalities are inscribed organisationally. Our analysis provides a more critical contextualisation of technological affordances to develop the literature on how technology is implicated in the reproduction of social inequality. Moreover, our analysis identifies multi-level causal processes, which combine to explain the presence and actualisation of worktime domestic labour or its absence, which is due, principally, to fear of sanction. For realist researchers interested in diversity-based challenges, absences are important because they can point towards specific discriminatory mechanisms. Our investigation thus revealed a surprising level of class-related in-work inequality within the gendered dynamics of domestic work. [ABSTRACT FROM AUTHOR]

Purpose: This study aims to answer two questions: (a) what obstacles and opportunities do Chinese female entrepreneurs face when doing business? And (b) how do they negotiate their entrepreneurial careers and gender identities in different gender-segregated markets? Design/methodology/approach: This study uses qualitative research methods of participant observation and in-depth interviews with 41 female entrepreneurs in China and the theoretical lenses of gender role theory and doing gender in entrepreneurship. Findings: The study findings reveal that Chinese female entrepreneurs face different obstacles and opportunities in gender-segregated industries. Their experiences vary in industries that are mainly occupied by males and females. On the one hand, women in female-dominated industries may be supported by a feminine working environment that is coherent with their domestic roles. However, they may also be questioned on the cultural impurity implied in some industries, which harms their class-based feminine virtue. On the other hand, women in male-dominated industries may be challenged and marginalized due to their gender. However, some find ways to turn the disadvantaged feminine characters into favourable conditions and break out of the stereotypical gender constraints in doing business. Originality/value: This study contributes to the literature on gender and entrepreneurship in general. More specifically, it contributes to the study of doing gender in gender-segregated markets, and it also illustrates women's gendered opportunities and constraints in Chinese society that are affected by the long-lasting traditional gender norms. [ABSTRACT FROM AUTHOR]

How do women reject the feminine in postfeminist working life, and to what effects? Organisational scholars have long argued that the feminine is discouraged or reconfigured in neoliberal, postfeminist organisations that value masculine-oriented traits. But what the feminine encompasses, how it is rejected and to what effects is less clear. In this article, we draw on feminist post-Jungian theory, which understands the feminine as archetypal, emerging over thousands of years of human history and characterised by paradox, circularity, being and descent. Feminist Jungian thinkers agree that the archetypal feminine is neglected, if not denigrated, in neoliberal, capitalist cultures, much to our detriment. Reflecting on data from a qualitative, longitudinal study on early career formation and work experiences with 15 young women, we reflexively discuss how in postfeminist working life, disavowing the archetypal feminine manifests by: adhering to ascensionist ideals to the detriment of slowness and inactivity; engaging linear thinking to the detriment of cyclical, paradoxical being; and avowing rational objectivity to the detriment of embodied instinct. This engenders both collusion with postfeminist power structures and psychic effects such as dis-ease and anxiety, which we argue can be ameliorated by recognising and embracing the archetypal feminine within. [ABSTRACT FROM AUTHOR]

The use of tris(4-aminophenyl)amine (TAPA) as central to the synthesis of both polyimines and polyimides and covalent organic frameworks and inorganic cages, among others, has grown in the last few years. The resulting materials exhibit high performance in their area of application. In this contribution, the crystal structures of two TAPA derivatives, triethyl (nitrilotris(benzene-4,1-diyl))tricarbamate (1) and triethyl 2,2′,2″-((nitrilotris(benzene-4,1-diyl))tris(azanediyl))tris(2-oxoacetate) (2), are described. The molecular and supramolecular structures of both compounds were compared between them and with analogous compounds. The analyses of their vibrational and 13C-CPMAS NMR spectroscopies, as well as their thermal stability, were included and corelated with the crystal structure. Hirshfeld surface analysis on the crystal structures of both TAPA derivatives revealed the stabilization of the crystal network via the amide N—H∙∙∙O interactions of dispersive nature in the carbamate, whereas dispersive carbonyl–carbonyl interactions also played a competitive role in the supramolecular arrangement of the oxamate. Interaction energy DFT calculations performed at the B3LYP/6-31G(d,p) level allowed us to estimate the energy contributions and nature of several interactions in terms of the stability of both crystal lattices. [ABSTRACT FROM AUTHOR]

The article focuses on the usage of the suffix -isms in different contexts. It discusses the etymological view of the suffix and mentions how it is used to connect with another word to form nouns of action. It highlights its derivations and origins from other ancient languages including Greek, Roman, Latin, and cites how it was employed in English and French. It informs that the suffix also has its different usage including religion, politics and government, and even in socialization, and asserts how it depicts the linguistic styles.

This study investigates the solvatochromic behavior of a new D1 disperse dye, focusing on the 4-nitro-2-cyano-azo-Benzene-metaToluidine type. Using UV-visible spectroscopy, we analyze the dye's performance in single solvents and binary mixtures. Our analysis includes the evaluation of solvent polarity parameters and dye structure parameters, with emphasis on the longest wavelength intramolecular charge transfer absorption band. We identify nonlinear and linear patterns in the electronic transition energies plots with respect to solvent composition. Statistical analysis considers correlation coefficients, root mean squared error, mean absolute percentage error, and other parameters, providing insights into data accuracy and precision. This experimental and statistical study explores the absorption spectrum, wavelength characteristics, absorption energy, and polarity of a novel azo dye across various solvent and solute environments. These findings contribute to a comprehensive understanding of the dye's photophysical and photochemical properties, potentially enabling applications in optical sensors and advanced materials. [ABSTRACT FROM AUTHOR]

Fluorination of azopyridine N-donors regulates the formation of either B ← N coordination adducts or a co-crystal with phenylboronic acid catechol ester. Specifically, the formation of B ← N adducts is promoted by azopyridines with up to four fluorines, while perfluorination affords a co-crystal via phenyl–perfluoropyridyl [π⋯πF] contacts. Electrostatic potential maps showed supramolecular bonding competition outcomes to be primarily determined by modulation of electron-donating capacity and π surfaces of azopyridine N-donors using fluorination. [ABSTRACT FROM AUTHOR]

Mesoporous silica particles (MSPs) have been investigated as potential carriers to increase the apparent solubility and dissolution rate of poorly water-soluble drugs by physically stabilising the amorphous nature of the loaded drug. In preparing such systems, it is recognized that the loading method has a critical impact on the physical state and performance of the drug. To date, there has been very limited investigation into the use of electrospraying for loading drugs into mesoporous silica. In this study, we further explore the use of this approach, in particular as a means of producing amorphous and high drug-loaded MSPs; the study includes an investigation of the effect of drug loading and MSP concentration on the formulation performance and process. A comparison with rotary evaporation, a more widely utilised loading technique, was conducted to assess the relative effectiveness of electrospraying. The physical state of the drug in the formulations was assessed using powder X-ray diffraction (PXRD) and differential scanning calorimetry (DSC). The drug release profiles were determined by a comparative in vitro drug release test. Electrospraying successfully produced formulations containing amorphous drug even at a high drug loading. In contrast, while itraconazole was present in amorphous form at the lower drug-loaded formulations produced by rotary evaporation, the drug was in the crystalline state at the higher loadings. The percentage of drug released was enhanced up to ten times compared to that of pure itraconazole for all the formulations apart from the highest loaded (crystalline) formulation prepared by rotary evaporation. Supersaturation for at least six hours was maintained by the formulations loaded with up to 30 mg/mL itraconazole produced by electrospraying. Overall, the results of this study demonstrate that electrospraying is capable of producing amorphous drug-loaded MSPs at high loadings, with associated favourable release characteristics. A comparison with the standard rotary evaporation approach indicates that electrospraying may be more effective for the production of higher loadings of amorphous material. [ABSTRACT FROM AUTHOR]

Research in the synthesis of Schiff base ligands and their metal complexes using olive leaf extracts as a green reducing agent is an exciting area of study. In this research, a Schiff base ligand is created by combining 1-hydroxy-2-naphthaldehyde and amino-N-(4,6-dimethylpyrimidin-2-yl)-4-benzenesulfonamide. The synthetic Schiff base is then utilized for the production of a Cd(II) nano complex for the first time with olive leaf extracts serving as the green reducing agent. The extract is obtained by harvesting, drying, and grinding the olive leaves. Various analytical techniques, including 1H NMR, 13C NMR spectroscopy, scanning electron microscope (SEM), and conductivity studies, are employed to analyze the Schiff base and its Cd(II) complex. Quantum chemical calculations are also conducted to explore the different conformers of the Cd(II) complex and their stabilities, shedding light on the synthesis pathways of the Schiff base ligand and Cd(II) complex. Extensive DFT-based geometry optimizations and frequency calculations are carried out for 1-hydroxy-2-naphthaldehyde,amino-N-(4,6-dimethylpyrimidin-2-yl)-4-benzenesulfonamide, the Schiff base ligand, and the corresponding Cd(II) complex. Experimental and theoretical analyses confirm the presence of the azomethine (-HC = N-) group in the Schiff base and validate the formation of the Cd(II) complex in a 2:1 metal-to-ligand ratio through physicochemical characterization methods, highlighting the nanoscale structure of the complex. Combining thorough physicochemical investigations with molecular modeling simulations and the sustainable synthesis of metal complexes, valuable insights into their properties and potential applications in catalysis and drug delivery are obtained. [ABSTRACT FROM AUTHOR]

This paper explores how pregnancy discrimination at work is perceived by both employers and pregnant employees. Using a public, qualitative dataset collected by the UK Equality and Human Rights Commission that offers perspectives from both employers and pregnant employees, we explore the unfair and unethical treatment of pregnant employees at work. Our findings show how pregnant workers are expected to conform with workplace systems that are treated as sacred. We suggest that employer valorization of the mythical figure of 'ideal worker' disadvantages pregnant workers. We observe how, even if this contravenes maternity protection laws, some employers self-justify discrimination against pregnant employees who they perceive to have transgressed 'appropriate' workplace behaviors as ethical and reasonable. To illuminate and conceptualize the notion of transgression, our analysis has led us to the ideas of philosopher Georges Bataille, specifically his reflections on how individuals who 'transgress' social norms are treated as taboo, as well as his metaphorical descriptions of people and practices as either sacred or profane. We theorize that pregnant workers who are treated as profane should be reclassified as sacred, opening up this idea for debate so as to disrupt long-standing patterns of discrimination. [ABSTRACT FROM AUTHOR]

Copyright of Anuario Electrónico de Estudios en Comunicación Social 'Disertaciones' is the property of Colegio Mayor de Nuestra Senora del Rosario and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Zeszyty Teoretyczne Rachunkowości is the property of Stowarzyszenie Ksiegowych w Polsce Rada Naukowa and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

This study focuses on family owner–nonfamily CEO relational practices and what these relational practices constrain and potentiate in family firm CEO succession. Our main contribution is developing a constructionist relational practice perspective and approach as an alternative to the entitative view that dominates the family business literature. We illustrate the relational practice perspective through our dialogically structured inquiries with family owners and nonfamily CEOs. We co-develop practical wisdom on how family owner–nonfamily CEO relational practices can construct stuckness in organizing or, conversely, open up new possibilities to go on depending on (i) the way the family owner and nonfamily CEO "handle" equivocality and tension they continuously (re)produce through their relational practices and (ii) the way they enact "relational balancing" to equilibrate their relation in the making in terms of value/self-worth maintenance by involving other actors, such as board members, management team members, or a coach. [ABSTRACT FROM AUTHOR]

The multitopic heterofunctional pro-ligand 4-[(E)-(1H-imidazol-2-yl)diazenyl]benzoic acid (H′HL) was synthesized by diazotization of 4-aminobenzoic acid followed by coupling with imidazole. Reactions of H′HL (where H = imidazole proton and H′ = carboxylic acid proton) with the triorganotin precursors nPr3SnCl, (nBu3Sn)2O and Ph3SnOH provided three hypercoordinated triorganotin complexes, viz., [nPr3Sn(μ4-L)SnnPr3]n⋅1/8nEtOH (1), [nBu3Sn(μ-HL)]n (2) and [Ph3Sn(HL)]⋅0.5C6H6 (3), with complex 2D and 3D frameworks based on Sn − O, O → Sn, Sn − N and N → Sn metal–ligand bonds as well as N − H⋅⋅⋅N, N − H⋅⋅⋅O and π-interactions. The compositions and structures of 1–3 in solution and in the solid-state were unambiguously established by NMR (1H, 13C, 119Sn) and IR spectroscopy, UV‒Vis spectral analysis, high-resolution mass spectrometry (HRMS) and single-crystal X-ray diffraction (scXRD) studies accompanied by Hirshfeld surface maps and 2D fingerprint plots. The binding potential of a heterotopic ligand carrying strong metal-coordinating carboxylate and imidazole functions and a color-providing diazenyl group, all embedded in an overall planar skeleton, was examined in 1:1 and 1:2 combinations with triorganotin moieties, yielding the frameworks illustrated in the graphical abstract. [ABSTRACT FROM AUTHOR]

Color is omnipresent, but organizational research features no systematic theory or established method for analyzing it. We develop a relational approach to color, conceptualizing it as a means of positioning relative to a reference group or style and validating it through a computational method for processing digital images. The research context is Norwegian black metal—a genre of extreme metal music that achieved notoriety in the early 1990s through band members' criminal activity. Our analysis of 5,125 album covers between 1989 and 2019 confirms the alignment of aesthetic and music features and articulates the role of color in the construction of a relational identity based on forces of association and disassociation. Black metal bands associated with past color choices of non-black metal bands up to a point, after which they started to disassociate from them. The positioning is dynamic, pursuing adaptation to external events. Black metal bands reacted to their stigmatization in Norwegian society by increasing colorfulness and later returning to a darker aesthetic in defiance of the genre's commercialization. Our analysis attests to color's ability to organize producers' exchange of information and attention, illustrating the interweaving of aesthetic features and relational processes in markets. [ABSTRACT FROM AUTHOR]

Recent dirty work research has begun to explore intersectionality, attending to how meaning is made at the intersection of multiple sources of taint. This research has shown that individuals often construct both positive and negative meanings, which can be challenging to manage because the meanings people construct require a certain coherence to provide a foundation for action. This challenge is intensified when dirty work is intractable—when it is difficult, if not impossible, for a person to avoid doing this work. Our study of meaning-making in the face of intractable dirty work examines ragpickers in Mumbai, India, who handle and dispose of garbage, and are further tainted by belonging to the lowest caste in Indian society, and living in slums. These ragpickers constructed both an overarching sense of helplessness rooted in the intractability of their situation, and a set of positive meanings—survival, destiny, and hope—rooted in specific facets of their lives and enacted through distinct temporal frames. By holding and combining these disparate meanings, they achieved "functional ambivalence"—the simultaneous experience of opposing orientations toward their work and lives that facilitated both acceptance and a sense of agency, and enabled them to carry on in their lives. [ABSTRACT FROM AUTHOR]

Molecular crystals that exhibit photomechanical responses show great promise as photoactuators and other smart materials in various fields. Herein, we synthesized two new barbituric acid derivative crystals (crystals 1 and 2), which exhibit distinct photomechanical responses towards a laser irradiation of 532 nm and UV LED photoirradiation of 365 nm, respectively. Crystal 1 demonstrated photomechanical bending upon exposure to 532 nm laser, whereas crystal 2 exhibited dramatic bursting, followed by jumping of its fragments upon UV irradiation. The photomechanical responses of both crystals are attributed to the [2 + 2] photocycloaddition reaction. However, their different kinematic responses are related to different amounts of accumulated strain energy owing to photocycloaddition and its subsequent release in the crystal lattice. The accumulation of strain energy depended on various factors such as the structural arrangement of the crystals, packing modes and overall directionality of non-covalent interactions. Furthermore, the position of the olefinic bond and peripheral substituents played a key role in determining the development of strain energy. [ABSTRACT FROM AUTHOR]

Purpose: Recent research has captured the impact of the COVID-19 pandemic in widening gender inequalities, by highlighting that academic women have been disproportionately affected. During the COVID-19 pandemic, women assumed most of the care labour at home, whilst working at normal patterns, leaving them unable to perform as normal. This is very concerning because of the short and long-term detrimental consequences this will have on women's well-being and their academic careers. This article aims to stimulate a change in the current understandings of academic work by pointing towards alternative – and more inclusive – ways of working in academia. Design/methodology/approach: The two authors engage with autoethnography and draw on their own personal experience of becoming breastfeeding academic mothers throughout the COVID-19 pandemic. Findings: To understand the positioning of contemporary academic mothers, this study draws on insights from both cultural studies and organisation studies on the emergence of discursive formations about gender, that is "postfeminist sensibility". Guided by autoethnographic accounts of academic motherhood, this study reveals that today academia creates an individualised, neutral (disembodied), output-focused and control-oriented understanding of academic work. Originality/value: This paper adds to the conversation of academic motherhood and the impact of the pandemic on working mothers. The study theoretically contributes with the lens of "motherhood" in grasping what academic work can become. It shows the power of motherhood in opening up an alternative way of conceptualising academic work, centred on embodied care and appreciative of the non-linearity and messiness of life. [ABSTRACT FROM AUTHOR]

The Jacobite rising of 1745–1746 saw several thousand Scots rebel against the British crown. Yet it also provided opportunities for Scots to demonstrate their loyalty to the crown. After the rising was over, a brutal pacification was accompanied by significant legislative and institutional changes which sought to inculcate long-term loyalty in the Highlands. Once again, numerous Scots participated in the framing and implementation of these changes, which eventually also provided an opportunity for the disloyal to enter the imperial fold. This article examines the roles of loyalist Scots during and after the rising. In doing so it demonstrates understandings of loyalty, neutrality, and disloyalty during this transformative period and illustrates the important role of Scots in inculcating loyalty in the Highlands. It argues that the experiences of Scots, and the British more generally, in this domestic setting influenced the British imperial state's attempts to actively craft loyalty elsewhere in the British Atlantic World, particularly in North America. [ABSTRACT FROM AUTHOR]

The digitalization of the aesthetic experience influences the quality of participation in musical arts. Due to differences in perception among consumers of musical arts belonging to particular generations, this study aims to assess the influence of the participation form (in-person or digital) in the aesthetic situation. The COVID-19 pandemic forced the common digitalization of the aesthetic situation and catalyzed broad research on all art disciplines. Qualitative data analysis (based on ten criteria) constructed on an international sample concludes that the form in which one participates in musical arts determines the perception of quality in the aesthetic situation, which is assessed differently depending on one's generation. Significant determinants exist among generations in participation in musical arts and between particular forms of participation. The research results should interest musical arts creators, managers, marketers, recipients, and researchers. [ABSTRACT FROM AUTHOR]

Purpose: The purpose of this study is to investigate the gendered ideas and ideals attached to an imagined ideal Entrepreneur in a post-industrial rural community in Sweden. While research has not yet clearly explained how the ideal entrepreneur is constructed, the result, i.e. the gendered representations of entrepreneurs, is well-researched. Previous results indicate a prevalent portrayal of entrepreneurship as a predominantly masculine construct characterised by qualities such as self-made success, confidence and assertiveness. Design/methodology/approach: Ethnographic fieldwork was conducted in a community that is attempting to re-brand itself through garden tourism. Through inductive reasoning, this study analyses the gendered ideas and ideals regarding the community's imagined ideal Entrepreneur who is to help the community solve its problems. Findings: This study finds that the community forges the Entrepreneur into an imagined masculine ideal as holy, a saviour and a god and is replacing its historical masculine ironmaster with a masculine Entrepreneur. This study develops forging as a metaphor for the construction of the masculine ideal Entrepreneur, giving the community, rather than the entrepreneur himself, a voice as constructors. From social constructionism, this study emphasises how gendered ideas and ideals are shaped not only by the individual realities but more so in the reciprocal process by the realities of others. Originality/value: The metaphor of forging adds an innovative theoretical dimension to the feminist constructionist approach and suggests focusing on how the "maleness" of entrepreneurship is produced and reproduced in the local. Previously, light has been shed on how male entrepreneurs perform their identities collectively; the focus of this study is on the social construction of this envisioned Entrepreneur within a rural community. The development of forging thus contributes as a way of analysing entrepreneurship in place. The choice of an ethnographic study allowed the authors to be a part of the real-life world of community members, providing rich data to explore entrepreneurship and gender. [ABSTRACT FROM AUTHOR]

Copyright of Quarterly Journal of Marketing is the property of Japan Marketing Academy and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

In this study, we report the mechanochemical synthesis of praziquantel hemihydrate in the presence of five solvents with different water miscibility. The commercially available praziquantel Form A (a racemic anhydrate structure) was ground in the presence of several water–solvent mixtures using two grinding procedures (i.e., direct liquid-assisted grinding and neat grinding plus liquid-assisted grinding). Five organic solvents (i.e., acetic acid, 2-pyrrolidone, ethanol, ethyl acetate and hexane) were chosen considering their different miscibility with water and their capability to form solvates with praziquantel (documented for acetic acid and 2-pyrrolidone). The results suggested that the use of a second solvent has a detrimental effect on the formation of the hemihydrate. The inclusion of water in the solid is even worse in the case of water-miscible solvents, probably due to the favored interactions between the liquids. In fact, hexane is the only solvent permitting the mechanochemical crystallization of praziquantel hemihydrate to a limited extent. Importantly, interconversion studies between the hydrate/monosolvate/anhydrous forms revealed a preferential inclusion of solvents over water in the crystal lattice when using acetic acid or 2-pyrrolidone and complete dehydration of the hemihydrate and conversion in the most thermodynamically stable polymorph A of praziquantel with ethanol, ethyl acetate and hexane. [ABSTRACT FROM AUTHOR]

This Account describes work by our research group that highlights opportunities to utilize organoboron molecules to direct chemical reactivity in the organic solid state. Specifically, we convey a previously unexplored use of hydrogen bonding of boronic acids and boron coordination in boronic esters to achieve [2+2]-photocycloadditions in crystalline solids. Organoboron molecules act as templates or 'shepherds' to organize alkenes in a suitable geometry to undergo regio- and stereoselective [2+2]-photocycloadditions in quantitative yields. We also provide a selection of publications that served as an inspiration for our strategies and offer challenges and opportunities for future developments of boron in the field of materials and solid-state chemistry. 1 Introduction 1.1 Template Strategy for [2+2]-Photocycloadditions in the Solid State 2 Boronic Acids as Templates for [2+2]-Photocycloadditions in the Solid State 2.1 Supramolecular Catalysis of [2+2]-Photocycloadditions in the Solid State Using Boronic Acids 3 Boronic Esters as Templates for [2+2]-Photocycloadditions in the Solid State 3.1 Application of Photoproducts: Separation of Thiophene from Benzene through Crystallization 3.2 Crystal Reactivity of B←N-Bonded Adducts: The Case of Styryl-thiophenes 4 Conclusions and Perspectives [ABSTRACT FROM AUTHOR]

This study presents a simple and energy-efficient self-assembly LAG synthetic method for novel water-soluble copper(I) complexes [Cu(terpy)(PTA)][PF6] (1) and [Cu(terpy)(PTA)2][PF6] (2). They were characterized by FT-IR, 1H, and 31P{1H} NMR spectroscopy, elemental analysis, and single-crystal/powder X-ray diffraction (for 2). The X-ray analysis of compound 2 indicates a bidentate coordination mode of terpyridine to the metal center. Variable-temperature NMR tests indicate dynamic properties for terpyridine in the case of both compounds, as well as for the PTA ligands in the case of 2. Additionally, compounds 1 and 2 exhibit interesting cytotoxic activity, which was tested on normal human dermal fibroblasts (NHDFs), human lung carcinoma (A549), human breast adenocarcinoma (MCF-7), and human cervix carcinoma (HeLa) established cell lines. In comparison to the other tested compounds, complexes 1 and 2 seem to have significantly lower IC50 values against cancer cells (A549, HeLa, MCF-7), indicating their potential as prospective anticancer agents. Moreover, both compounds show no significant toxicity towards normal skin cells (NHDFs), suggesting a certain selectivity in their action on cancer cells. Cisplatin as a reference compound also exhibited considerable cytotoxicity against cancer cells but with a low level of selectivity, which could lead to unwanted effects on normal cells. Remarkably, compounds 1 and 2 exhibit up to 30 times the cytotoxic activity of cisplatin, with a six-fold lower toxicity to normal cells. They also interact strongly with human serum albumin, suggesting potential therapeutic applications. Overall, these compounds hold significant promise as potential chemotherapeutic agents. [ABSTRACT FROM AUTHOR]

This article is a companion to "Pride: Alternative Entrepreneurship Enjoyed," a videography about the company Prezi's engagement in the Budapest Pride parade. The aim is to advance video ethnographic methods within Organization and Management Studies (OMS) based on Agamben's profanatory philosophical method, which puts into focus abstract "sacred" concepts and returns them to the sphere of the profane—of the everyday. A profanatory approach of use for OMS accounts for organizations, brands, and management in a way that do not reproduce their "sacredness"—entrepreneurial myths and management clichés. Instead, by opening them up to critical exposure, they can be moved from a "religious canon" of communication strategies, press releases, and policy documents, to everyday profane work. Through a methodological discussion of the videography, we show three ways in which profanation re-positions the myth of alternative entrepreneurship: by engaging in the logic of the sacred, by playing with notions of inside and outside, and by using musical soundtrack as an expressive tool. We suggest that these methodological strategies advance the analytical possibilities within video ethnography, also useful for other organizational phenomena, especially when economic interests are combined with ambitions of social change and ideals of self-realization. [ABSTRACT FROM AUTHOR]

We report channel confinement and separation properties of an adaptive supramolecular framework based on an adamantane tecton. Specifically, the framework is self-assembled from a tetraaryl-substituted adamantane tecton (i.e., 1,3,5,7-tetrakis(4-bromophenyl)adamantane) via van der Waals contacts, phenyl embraces and halogen bonds. The adamantane framework displays modular channels that confine aromatic petrochemicals and chloroform, and enables separation of toluene from benzene via crystallization. [ABSTRACT FROM AUTHOR]

Poetry can be used as an adjunct to interviews in social science to build relationships and share meaning to create an artefact that provokes dialogue between the researcher and research study participants. Describing the sensemaking of researcher identity as a narrative walk, Datawalking is extended as an embodied post-data qualitative research method to inform autoethnography and poetry. These methods articulate the ways to support researcher wellbeing to counter the loneliness of remote research which can be heightened by external factors such as the lockdowns of the COVID-19 pandemic. We illustrate two poems used alongside phenomenological interviewing to inform reflexive knowledge in educational research. By exploring poetic techniques including meter, alliteration, and enjambment we seek to advance the understanding of evocative autoethnography as a polyphonic form of expressive scholarship to instantiate dialogue in social research. This approach, centred on identity and praxis, has uses for organisational studies in education. [ABSTRACT FROM AUTHOR]

Securinega alkaloids have intrigued chemists since the isolation of securinine in 1956. This family of natural products comprises a securinane subfamily with a piperidine substructure and norsecurinane alkaloids featuring a pyrrolidine core. From a biosynthetic perspective, the piperidine moiety in securinane alkaloids derives from lysine, whereas the pyrrolidine moiety in norsecurinane natural products originates from ornithine, marking an early biogenetic divergence. Herein, we introduce a single-atom deletion strategy that enables the late- stage conversion of securinane to norsecurinane alkaloids. Notably, for the first time, this method enabled the transformation of piperidine-based (allo) securinine into pyrrolidine-based (allo)norsecurinine. Straightforward access to norsecurinine from securinine, which can be readily extracted from the plant Flueggea suffruticosa, abundant across the Korean peninsula, holds promise for synthetic studies of norsecurinine-based oligomeric securinega alkaloids. [ABSTRACT FROM AUTHOR]

Objective: Boron-based molecules have attracted the attention of researchers in recent years, as they have become one of the largest and fastest-growing research areas. Presented in this study, various effects of tetrahedral boronate ester (BE) on, VCAM-1, E-selectin, and MCP-1 gene, and protein expression in ox-LDL induced in vitro atherosclerotic model were determined. Methods: IC50 concentrations and effects of tetrahedral BE on cell survival were detected using XTT assay. Real-Time PCR (RT-PCR) was used to evaluate the mRNA expression levels of VCAM-1, E-selectin, MCP-1 genes and, western blotting determined the protein expression. Results: Tetrahedral BE compound did not show cytotoxicity against HUVECs at 50 µM concentration. ox-LDL treatment caused an increase in E-selectin, VCAM-1, and MCP-1 gene and protein expression levels in cell culture samples. Tetrahedral BE suppressed adhesion molecule expression such as VCAM-1 and E-selectin. Discussion: Tetrahedral BE treatment reversed all increases in E-selectin gene and protein expression levels in any of the treatment groups. ox-LDL increased VCAM-1 gene and protein expression, which was reversed by BE treatment in a dose-dependent manner. Moreover, ox-LDL triggered MCP-1 protein and gene expression levels and these increases were reversed significantly only by a mid and low-dose of BE treatment. The results showed that tetrahedral BE stabilized with N→B dative bond plays a protective role in the early stages of atherosclerosis. Conclusions: We reported a new tetrahedral boronate ester molecule based on trigonal-planar boronate ester and 4-hydroxy pyridine were designed and synthesized via B←N coordinate covalent bond. We have shown that boron-compound has decreased gene and protein expression of MCP-1, VCAM-1, and E-selectin increased by ox-LDL in the atherosclerosis model. These findings emerged that boron-based compounds could be an option for atherosclerosis treatment. [ABSTRACT FROM AUTHOR]

Current outcomes of immigration enforcement policies and apparatuses call for rethinking the ethics behind our understanding of community belonging, human rights and just society. The ethics at work are often presented as emotions creating particular affective atmosphere that permit the ongoing implementation of enforcing migration. This Special Issue tackles emotions as processes of organizing that are mobilized in support of certain ethics. In the context of immigration enforcement, these emotions are not self-explanatory, but they can justify the potential for violence and even deem it necessary. The emotions or affects of enforcers (as opposed to migrants) have been less addressed, and this Special Issue aims to be a novel collection. The articles pay particular attention to racism and to the understanding of institutional racism within state structures. They reveal the ways in which emotions are instrumental to the operations of state bureaucracy within the repressive migration apparatus and point to the ethics that allows individuals to conform state structures of oppression. [ABSTRACT FROM AUTHOR]

This study explores the co-crystallization between the drug praziquantel (PZQ) and the nutraceutical curcumin (CU). The investigation revealed two novel solid forms: a cocrystal solvate with ethyl acetate and a non-solvated cocrystal. This novel drug–nutraceutical cocrystal is a praziquantel–curcumin (2:1) cocrystal. The cocrystal solvate has ethyl acetate molecules occupying the voids with minimal interactions within the crystal lattice. The application of heat treatment induces solvent removal and prompts the transition to the non-solvated cocrystal, as highlighted by variable-temperature X-ray powder diffraction (VT-XRPD). Thermal analyses demonstrate the stability of the cocrystal solvate up to approximately 100 °C, beyond which it transforms into the non-solvated phase, which eventually melts at 130 °C. [ABSTRACT FROM AUTHOR]

This review discusses the entire progress made on the anthelmintic drug praziquantel, focusing on the solid state and, therefore, on anhydrous crystalline polymorphs, amorphous forms, and multicomponent systems (i.e., hydrates, solvates, and cocrystals). Despite having been extensively studied over the last 50 years, new polymorphs and the greater part of their cocrystals have only been identified in the past decade. Progress in crystal engineering science (e.g., the use of mechanochemistry as a solid form screening tool and more strategic structure-based methods), along with the development of analytical techniques, including Synchrotron X-ray analyses, spectroscopy, and microscopy, have furthered the identification of unknown crystal structures of the drug. Also, computational modeling has significantly contributed to the prediction and design of new cocrystals by considering structural conformations and interactions energy. Whilst the insights on praziquantel polymorphs discussed in the present review will give a significant contribution to controlling their formation during manufacturing and drug formulation, the detailed multicomponent forms will help in designing and implementing future praziquantel-based functional materials. The latter will hopefully overcome praziquantel's numerous drawbacks and exploit its potential in the field of neglected tropical diseases. [ABSTRACT FROM AUTHOR]

Three decades ago, dye-sensitized solar cells (DSSCs) emerged as a route for harnessing the sun's energy and converting it into electricity. Since then, an impressive amount of work has been devoted to improving the global photovoltaic efficiency of DSSCs, trying to optimize all components of the device. Up to now, the best efficiencies have usually been reached with ruthenium(II) photosensitizers, even if in the last few years many classes of organic compounds have shown record efficiencies. However, the future of DSSCs is stringently connected to the research and development of cheaper materials; in particular, the replacement of rare metals with abundant ones is an important topic in view of the long-term sustainability of DSSCs intended to replace the consolidated fossil-based technology. In this context, copper is a valid candidate, being both an alternative to ruthenium in the fabrication of photosensitizers and a material able to replace the common triiodide/iodide redox couple. Thus, recently, some research papers have confirmed the great potential of copper(I) coordination complexes as a cheap and convenient alternative to ruthenium dyes. Similarly, the use of copper compounds as electron transfer mediators for DSSCs can be an excellent way to solve the problems related to the more common I3−/I− redox couple. The goal of this mini-review is to report on the latest research devoted to the use of versatile copper complexes as photosensitizers and electron shuttles in DSSCs. The coverage, from 2022 up to now, illustrates the most recent studies on dye-sensitized solar cells based on copper complexes as molecular materials. [ABSTRACT FROM AUTHOR]

Purpose: This photovoice study aims to explore how cleaners experience dirty and invisible work in the workplace. Design/methodology/approach: This research is twofold. The authors first used the photovoice technique, which is one of the visual data collection techniques, to elaborate on the phenomena. The data were obtained with the participation of seven people (four women and three men) from building cleaners working at two public universities in Turkey. Three photographs were requested from each participant and selected nine photographs were described and analyzed among the collected 21 photographs. In addition to photovoice research, five interviews gave insight into the cleaners' experiences in the second stage of the study. Findings: This research revealed that participating cleaners experienced invisible dirty work and they felt undervalued, despised, treated as "second class/low-level people" and stigmatized. Practical implications: This study recommends that university administrations defend the rights and dignity of cleaners at work, provide services to support their inclusion and increase staff awareness. Originality/value: This study sheds light into an understudied area which is the building cleaners' invisible and dirty work experiences and how that impacts their lives via a photovoice research. [ABSTRACT FROM AUTHOR]

The aim of this paper is to develop a theoretical vocabulary that allows us to better understand not only the visible effects of digitalization on organizations but also the invisible work that arises in and around the digitalized organization to prepare, maintain and repair its key features. Drawing on feminist science and technology studies and their classic concept of invisible work, we challenge some of the dominant spatial root metaphor assumptions in current research and develop an alternative metaphoric of digital work and the digitalized organization. We develop the theoretical concept of invisible digi-work as a corollary to the already established concept of digital work and flesh out three types of work that we conceptualize as invisible connecting, compensating and cleaning work. This analytical framework captures aspects of work that tend be out of sight and devalued in dominant accounts. As such, it represents a theoretical alternative to imageries of digital spaces that lead to an overemphasis on the affordances of new digital technologies, establishing an alternative ground for interrogating work at margins, which is essential to the constitution of digitalized organizations. Theorizing invisible digi-work is in line with recent calls in organization studies to go beyond the visual and investigate the indirect and less visible implications of digitalization. [ABSTRACT FROM AUTHOR]

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In this study, novel boron-containing salen ligands (1 and 2) and their tetra-coordinated boron-based polymers (1a-b and 2a-b) containing N → B coordination bonds were synthesized under suitable conditions. In the first step, the synthesis of boron-containing salen ligands (1 and 2) was carried out as a result of the reaction of 4-formyl phenylboronic acid with different primary amines. Then, the obtained boron-containing salen ligands (1 and 2) were reacted with pentaerythritol and different N-donor ligands, respectively, to synthesize tetra-coordinated polymers (1a-b and 2a-b) containing N → B coordination bonds. Synthesized boron-containing salen ligands and corresponding tetra-coordinated polymers containing (N → B) coordination bonds were characterized by melting point, elemental analysis, LC–MS/MS spectrometer, FT-IR, UV–Vis and NMR (1H, 13C, and 11B) spectroscopy for illuminate of their structures. The use of synthesized boron-containing salen ligands (1 and 2) and their polymers (1a-b and 2a-b) containing N → B coordination bonds as novel organocatalysts were tested for the transfer hydrogenation of various aromatic ketones under suitable conditions. Considering all the catalytic results, it was seen that salen ligands (1 and 2) and tetra-coordinated boron-based polymers (1a-b and 2a-b) containing N → B coordination bonds to be suitable organocatalysts in the future for transfer hydrogenation with other boron compounds. [ABSTRACT FROM AUTHOR]

C37H37BN2O4, monoclinic, I2/a (no. 15), a = 13.8030(3) Å, b = 17.6109(2) Å, c = 14.1059(3) Å, β = 117.524(3)°, V = 3040.83(11) Å3, Z = 4, Rgt(F) = 0.0340, wRref(F2) = 0.0867, T = 150 K. [ABSTRACT FROM AUTHOR]

C36H42O2, monoclinic, P21/n (no. 4), a = 9.0092(8) Å, b = 9.4264(11) Å, c = 17.2712(16) Å, β = 96.156(8)°, V = 1458.3(3) Å3, Z = 2, Rgt(F) = 0.0509, wRref(F2) = 0.1272, T = 150.00(10) K. [ABSTRACT FROM AUTHOR]

Education for sustainable development recognizes the ways, in which teachers improve education, by utilizing their skills to the fullest extent and reconsidering the conditions of the teaching profession. The relationship between teachers' professional identity and teachers' emotions is an issue that needs to be studied as a basis for improving the effectiveness of their professional activities. Thus, a standardized questionnaire was used to describe the characteristics of Vietnamese secondary teachers and the influence of teacher professional identity (TPI) on working emotions. The study was conducted in Vietnam using two survey instruments aimed to determine the role of TPI contribution in the different dimensions of teachers' emotions (anger, fear, joy, love and sadness). Findings revealed that a higher level of TPI social dimension was among participating Vietnamese teachers, and a lower level was towards career with negative emotions such as anger, fear and sadness. In addition, higher levels of the institutional dimension of TPI were associated with lower levels of teachers' feeling of joy in their career; and when the level of the personal dimension of TPI was higher, teachers' sense of love towards their profession was higher. Three implications of the study are proposed to help promote teacher identity, in ways that contribute to positive emotion in executing their teaching task. In other words, when teachers had a higher motivation, satisfaction, and commitment, they could perceive teaching as a noble job and be full of positivity. This made teachers ready for professional development in compliance with sustainability education goals. [ABSTRACT FROM AUTHOR]