Deconstructive Strategy Research Articles

Photoinduced Deconstructive Alkylation Approach Enabled by Oxy-Radicals from Alcohols.

Alcohols are the most commercially abundant, synthetically versatile and operationally convenient functional groups in organic chemistry. Therefore, a strategy that utilizes hydroxy-containing compounds to develop novel bond disconnection and formation process would achieve molecular diversity. Herein, a deconstructive strategy for the generation of quinoxalin-2(1H)-one derivatives has been developed from alcohol precursors via oxy-radical-induced β-fragmentation. Additionally, 1,5-HAT and deoxygenation by P(III) along with oxy-radical were demonstrated as alternative pathways for this transformation. Furthermore, with the deep-seated reorganization of a few terpenes carbon framework, a unique activity with inhibition against the growth of pathogenic fungi was observed.

DeFNet: deconstructed strategy for multi-step fabric folding tasks

Fabric folding through robots is complex and challenging due to the deformability of the fabric. Based on the deconstruction strategy, we split the tough multi-step fabric folding task into three relatively simple sub-tasks and propose a Deconstructed Fabric Folding Network (DeFNet), including three corresponding modules to solve them. (1) We use the Folding Planning Module (FPM), which is based on the Latent Space Roadmap, to infer the shortest folding intermediate states from the start to the goal in latent space. (2) We utilize the flow-based approach, Folding Action Module (FAM), to calculate the action coordinates and execute them to reach the inferred intermediate state. (3) We introduce an Iterative Interactive Module (IIM) for multi-step fabric folding tasks, which can iteratively execute the FPM and FAM after every grasp-and-place action until the fabric reaches the goal. Experimentally, we demonstrate our method on fabric folding tasks against three baselines in simulation. We also apply the method to an existing robotic system and present its performance.

CROSS-DRESSING IN CONTEMPORARY BRITISH FEMINIST THEATRE

Sex and gender are two concepts that are often unconsciously used interchangeably, but they have distinct meanings. They are crucial in understanding the gender hierarchy or the distinction between man and woman created by the patriarchal order. While sex refers to a biological difference or an innate existence based on signs such as chromosomes and genitals, gender is a socio-cultural identity subsequently acquired through a social interaction. While the biology-oriented approach reduces femininity and masculinity to the body based on an essentialist approach, the socio-culture oriented approach underlines that femininity and masculinity are culturally constructed, fluid, and changeable. The gender roles assigned to man and woman in the patriarchal society bring along certain expectations based their sexes and their society’s values and beliefs about gender. The fact that both woman and man are expected to wear appropriate dresses for their gender roles is the reflection of this expectation. When a man wears clothing traditionally associated with women or when a woman wears clothing traditionally associated with men, they might face ridicule or criticism because these clothing choices challenge established gender norms, and because the clothes are reminders of roles, symbols that favour social roles. Contrary to this, cross-dressing is described as an act of wearing clothing and accessories that belong to the opposite sex, and it is possible to see its examples as a deconstructive strategy in contemporary British feminist theatre. This article aims at discussing the functions of cross-dressing as a body memory in contemporary British feminist theatre over selected plays such as Caryl Churchill’s Cloud Nine (1979) and Top Girls (1982), Timberlake Wertenbaker’s New Anatomies (1984), and Moira Buffini’s Silence (1999).

Regionalization of primary health care units: An iterated greedy algorithm for large-scale instances

In this paper, we study the problem of multi-institutional regionalization of primary health care units. The problem consists of deciding where to place new facilities, capacity expansions for existing facilities, and demand allocation in a multi-institutional system to minimize the total travel distance from demand points to health care units. It is known that traditional exact methods as branch-and-bound are limited to solving small- to medium-size instances of the problem. Given that real world-instances can be large, in this paper we propose an iterated greedy algorithm with variable neighborhood descent search for handling large-scale instances. Within this solution framework, several methods are developed. A greedy constructive method and two deconstruction strategies are developed. Another interesting component is the exact optimization of a demand allocation subproblem that is obtained when the location of facilities is previously fixed. An empirical assessment using real-world data from the State of Mexico’s Public Health Care System is carried out. The results demonstrate the effectiveness of the proposed metaheuristic in handling large-scale instances.

Analysis of the Possibility of Application of Deconstructive Strategy in Theological Studies

The article attempts to analyze the possibility of applying deconstructive strategy in theological research. For this purpose, the author firstly defines the specificity of the deconstructive strategy of thinking, which consists in the researcher’s aspiration to catch the trace left by the author in the original unwritten proto-text by means of revealing oppositions and their loosening, up to their complete splitting, contributing to the disclosure of new meanings in the text. Then, on the basis of the analysis of modern Russian studies concerning the critical comprehension of Jacques Derrida’s theory of deconstruction, a systematization of very contradictory remarks and objections is carried out, as a result of which three critically minded groups are revealed: researchers of Postmodernism and Poststructuralism, accusing deconstruction of debunking stable notions; the scholars of neo-Marxist direction, emphasizing its excessive Theology; theologians of various branches of Christian thought, revealing an atheological and even atheistic character in the deconstructive thinking strategy. The author of the paper further analyses the work of an Arabian scholar ‘Ali Zawwari Ahmad on the criticism of Arab modernists who use western deconstructive methodology in dealing with religious texts, thus revealing that in the contemporary Muslim world there are two opposing views on the use of deconstructive strategies in theological studies, which are according to the traditional Muslim community, faithfully defend the inviolability of religious traditions, including in the field of Theological Methodology.

Integrating Olefin Carboamination and Hofmann-Löffler-Freytag Reaction by Radical Deconstruction of Hydrazonyl N-N Bond.

As a type of elementary organic compounds containing N-N single bond, hydrazone involved chemical conversions are extremely extensive, but they are mainly limited to N2-retention and N2-removal modes. We report herein an unprecedented protocol for the realization of division utilization of the N2-moiety of hydrazone by a radical facilitated N-N bond deconstruction strategy. This new conversion mode enables the successful combination of alkene carboamination and Hofmann-Löffler-Freytag reaction by the reaction of N-homoallyl mesitylenesulfonyl hydrazones with ethyl difluoroiodoacetate under photocatalytic redox neutral conditions. Mechanism studies reveal that the reaction undergoes a radical relay involving addition, crucial remote imino-N migration and H-atom transfer. Consequently, a series of structurally significant ϵ-N-sulphonamide-α,α-difluoro-γ-amino acid esters are efficiently produced via continuous C-C bond and dual C-N bonds forging.

Integrating Olefin Carboamination and Hofmann‐Löffler‐Freytag Reaction by Radical Deconstruction of Hydrazonyl N−N Bond

AbstractAs a type of elementary organic compounds containing N−N single bond, hydrazone involved chemical conversions are extremely extensive, but they are mainly limited to N2‐retention and N2‐removal modes. We report herein an unprecedented protocol for the realization of division utilization of the N2‐moiety of hydrazone by a radical facilitated N−N bond deconstruction strategy. This new conversion mode enables the successful combination of alkene carboamination and Hofmann‐Löffler‐Freytag reaction by the reaction of N‐homoallyl mesitylenesulfonyl hydrazones with ethyl difluoroiodoacetate under photocatalytic redox neutral conditions. Mechanism studies reveal that the reaction undergoes a radical relay involving addition, crucial remote imino‐N migration and H‐atom transfer. Consequently, a series of structurally significant ϵ‐N‐sulphonamide‐α,α‐difluoro‐γ‐amino acid esters are efficiently produced via continuous C−C bond and dual C−N bonds forging.

Об элементах деконструктивного подхода в экзегезе Иоанна Златоуста

This article attempts to identify elements of deconstruction in the exegetical practices of John Chrysostom. To achieve this goal, a brief description of the basic principles and purpose of deconstruction is given and deconstructive practices in the exegesis of John Chrysostom are revealed. The authors conclude that the following elements of deconstructive strategy are implicitly present in exegesis: preserving and updating the tradition, searching for what was forgotten in it; replenishment, indicating the openness of the text and its non-identity; the issue of translation and language of concepts; focusing on paradoxes and intractability; discovering the natural metaphoricity of words and concepts; focus on context, etymology, words, prepositions, particles, prefixes. In exegesis, as in deconstruction, the outcome of interpretation is not guaranteed as methodically achievable knowledge. Thus, the deconstructivist strategy retains the classical philosophical motive of continuous renewal of knowledge and is a certain form of exegete that protects tradition from stagnation.

Коммуникативные тактики и стратегии в бракоразводных процессах: юрислингвистический аспект

The article investigates the relationship between communicative motives and the process of divorce from a jurislinguistic perspective. The article examines how communicative factors influence the decision to dissolve a marriage. 
 The aim of the article is to identify the primary communicative motives that lead to the dissolution of marriage and to understand their interaction with the legal aspects of the divorce process. Exploring these interactions can help improve communication in such situations, as well as increase the effectiveness of legal interventions related to marital dissolution.
 Methodology, methods and techniques. The article applies discursive, lexico-semantic, contextual method of analyzing communicative tactics and strategies. The legal-linguistic analysis of divorce discourse implies the use of argumentation methodology, methodology of cognitive interpretation of legal text and discourse, methodology of analyzing the formal and semantic structure of linguistic elements and text-forming categories.
 Results. In the process of jurislinguistic analysis we have identified the primary and auxiliary strategies and tactics in divorce proceedings. The primary strategy of judicial communication is persuasion as the most significant strategy in terms of motives and goals, since it is the court that decides the outcome of the dispute in divorce proceedings. Auxiliary strategies are: deconstruction strategy, strategy of interpreting reality, emotionally attuning strategy, rhetorical strategy, dialog strategy and others. 
 Communicative-psychological motives for the dissolution of marriage can be the loss of interest of spouses (communicative conflicts, misunderstanding, indifference, aggression), infidelity, beatings, lack of care for joint children and many others. We consider it necessary to develop a special jurislinguistic methodology, using the communicative-discursive potential, which would declare a strict mechanism for taking into account the motives of action of all parties and would implement an algorithm of correlating communicative tactics and strategies in order to successfully reconcile the parties.
 The scientific novelty of the study consists in addressing the jurislinguistic discourse of divorce proceedings in order to identify communicative tactics and strategies as a basis for the development of jurislinguistic methodology that uses the communicative and discursive potential.
 The practical significance of the study lies in the use of the primary findings to create a communicative toolkit that improves the results of the judicial process.

On the reasons and strategies of deconstruction of the Soviet in the paraphrases of cultural signs

Deconstruction of the Soviet in paraphrases of precedent cultural signs is for the first time considered from a socio-philosophical position: the socio-cultural and socio-psychological reasons for this phenomenon are analyzed, and its influence on the reception of the Soviet theme by modern public consciousness is theorized. It has been established that the tendency of ironic paraphrasing of Soviet precedents is predetermined by the morphology of Soviet culture and by a number of factors associated with the properties of social psychology as well. The author points out that paraphrases are capable of creating an alternative thesaurus of Soviet culture and broadcasting specific values.

Research on IFC instance data based on topology induction network

ABSTRACT Building information modeling (BIM) can store a large amount of civil engineering information and has become a high-value economic and social resource. To improve BIM data interoperability, Industry Foundation Class (IFC) was proposed. However, the IFC instance data usually exceeds megabytes, and the logical relationship of the data is complex and changeable. Therefore, how to further enhance the usability of IFC instance data will become very important. To this end, this paper proposes a data deconstruction model ‘Topological Induction Model (TIM)’, which deconstructs the IFC instance data into a network structure ‘Topological Induction Network (TIN)’. Through the analysis and operation of TIN, more effective utilization of IFC instance data can be realized. Based on TIN, the skeleton structure, citation structure and corresponding acquisition algorithm of IFC instance data are discussed, and the hierarchical characteristic, internal aggregation characteristic and data similarity of data topology are found. Subsequently, the working performance of TIM (TIN) is evaluated and compared with existing data deconstruction strategies. The results show that the overall performance of TIM (TIN) is better than traditional methods. Finally, we show how TIM (TIN) can be used in a graph database to enhance the usability of IFC instance data.

Circularity Indicators as a Design Tool for Design and Construction Strategies in Architecture

This study addresses the challenges and barriers associated with the implementation of circular economy principles in architectural design and construction practices. It highlights the fragmented knowledge and lack of a unified approach to circular design as a major obstacle hindering the adoption of circularity. The existing frameworks for assessing circularity, such as the Material Circularity Indicator (MCI) protocol and the Level(s) assessment protocol, are applied to two projects with a high degree of deconstruction to understand their applicability in the architectural design process and identify their limitations. The study emphasises the significance of considering structural connectivity and circularity strategies during the concept-design stage, advocating for the incorporation of circularity at various scales beyond the microscale of materials. Furthermore, it emphasises the need for early implementation of Design for Disassembly (DfD) strategies on circularity scoring to enable meaningful comparisons of alternative designs using circularity metrics. The findings reveal the variability of circularity indicators based on the hierarchy of disassembly and highlights an early-stage design approach to deconstruction strategies to achieve circularity in architectural design. Overall, this study upscales the significance of a comprehensive and integrated approach to circularity in architectural design practices.

Design for adaptability and disassembly: guidelines for building deconstruction

Purpose Design for adaptability and disassembly (DfAD) is an effective method to reduce construction and demolition waste generation, landfill loads and greenhouse gas generation; preserve natural resources; and increase environmental awareness in the construction industry. However, it is an underexplored strategy due to a lack of information about projects and a set of agreed guidelines to guide buildings deconstruction. This study aims to understand how DfAD can support the sector’s transition toward circularity. Design/methodology/approach Through an integrative literature review, this study analyzed the current publications and terminologies used, identified the main themes discussed and described the key criteria for integrating deconstruction in the building design stage. Findings The results showed that the term DfAD encompasses different ecodesign strategies and is concentrated in six major thematic categories (design and construction principles, tools for DfAD, components and connections for DfAD, barriers, drivers and guidelines for DfAD, existing building stock potential and selective deconstruction process). In total, 60 criteria were presented to guide the deconstruction of buildings, emphasizing standardization, modularization and prefabrication of materials and components as fundamental requirements. Originality/value The study highlighted the need to expand the knowledge and training of the design team, establish public policies and tax incentives and develop tools, methods, and circular indicators to enable the implementation of deconstruction strategies for buildings.

Yeasts Have Evolved Divergent Enzyme Strategies To Deconstruct and Metabolize Xylan.

Together with bacteria and filamentous fungi, yeasts actively take part in the global carbon cycle. Over 100 yeast species have been shown to grow on the major plant polysaccharide xylan, which requires an arsenal of carbohydrate active enzymes. However, which enzymatic strategies yeasts use to deconstruct xylan and what specific biological roles they play in its conversion remain unclear. In fact, genome analyses reveal that many xylan-metabolizing yeasts lack expected xylanolytic enzymes. Guided by bioinformatics, we have here selected three xylan-metabolizing ascomycetous yeasts for in-depth characterization of growth behavior and xylanolytic enzymes. The savanna soil yeast Blastobotrys mokoenaii displays superior growth on xylan thanks to an efficient secreted glycoside hydrolase family 11 (GH11) xylanase; solving its crystal structure revealed a high similarity to xylanases from filamentous fungi. The termite gut-associated Scheffersomyces lignosus, in contrast grows more slowly, and its xylanase activity was found to be mainly cell surface-associated. The wood-isolated Wickerhamomyces canadensis, surprisingly, could not utilize xylan as the sole carbon source without the addition of xylooligosaccharides or exogenous xylanases or even co-culturing with B. mokoenaii, suggesting that W. canadensis relies on initial xylan hydrolysis by neighboring cells. Furthermore, our characterization of a novel W. canadensis GH5 subfamily 49 (GH5_49) xylanase represents the first demonstrated activity in this subfamily. Our collective results provide new information on the variable xylanolytic systems evolved by yeasts and their potential roles in natural carbohydrate conversion. IMPORTANCE Microbes that take part in the degradation of the polysaccharide xylan, the major hemicellulose component in plant biomass, are equipped with specialized enzyme machineries to hydrolyze the polymer into monosaccharides for further metabolism. However, despite being found in virtually every habitat, little is known of how yeasts break down and metabolize xylan and what biological role they may play in its turnover in nature. Here, we have explored the enzymatic xylan deconstruction strategies of three underexplored yeasts from diverse environments, Blastobotrys mokoenaii from soil, Scheffersomyces lignosus from insect guts, and Wickerhamomyces canadensis from trees, and we show that each species has a distinct behavior regarding xylan conversion. These findings may be of high relevance for future design and development of microbial cell factories and biorefineries utilizing renewable plant biomass.

Dealkenylative Functionalizations: Conversion of Alkene C(sp3)-C(sp2) Bonds into C(sp3)-X Bonds via Redox-Based Radical Processes.

This review highlights the history and recent advances in dealkenylative functionalization. Through this deconstructive strategy, radical functionalizations occur under mild, robust conditions. The reactions described proceed with high efficiency, good stereoselectivity, tolerate many functional groups, and are completed within a matter of minutes. By cleaving the C(sp3)-C(sp2) bond of terpenes and terpenoid-derived precursors, rapid diversification of natural products is possible.

Hermeneutics of the Avant-Garde Text: Experiment with Genre Exposition in I.M. Zdanevich’s “Admiration”

The article is devoted to the actual problem of interpreting the avant-garde text in the literature of the Russian diaspora, as well as the search for relevant methodological approaches and techniques for its analysis. The texts of one of the most radical representatives of the Russian avant-garde of the first wave of emigration, I.M. Zdanevich (Ilyazd). The purpose of the work is to study the features of poetics and the construction of the novel “Admiration” by I.M. Zdanevich as an experimental text, as well as revealing its relationship with the literature of the era under consideration. The study uses comparative historical and typological methods, motivational analysis and discourse analysis, as well as deconstruction strategies that reveal the internal inconsistency of the avant-garde text and the meanings hidden in it. We have established that “Admiration” is the embodiment of the principles of “all-ness” – an artistic criterion developed by Ilyazd, which is characterized by the leveling of the concept of “original”, the absence of frames and the optionality of such creative categories as inspiration and talent. In this regard, the authors of the article propose an innovative approach to the avant-garde text, which consists in the widest possible range of its interpretations in the spirit of “all-ness”: from a traditional novel with its own original plot and characters to a philosophical novel, a novel-myth and a novel about an artist and the problem of creativity (metanovel). We came to the conclusion that “Admiration” by I.M. Zdanevich is a novel in which the writer uses the experiment as a set of aesthetic principles and artistic techniques that allow him to realize his own original concept of new art. Using the limitless possibilities of the novel genre and combining in the novel as a whole the features of its various modifications – adventure, philosophical, sentimental, symbolist, futuristic novels, myth-novel, poetological novel, I.M. Zdanevich was able to conduct an experiment on the destruction of genre boundaries. We also found that “Admiration” by I.M. Zdanevich is moving closer to the literature of magical realism, and this opens up new horizons for future research.

Use of a hierarchical deconstruction procedure for the classification of personal networks: Exploring nested groups around you

The deconstruction of personal networks through the iterative elimination of the nodes with the highest betweenness centrality is an effective strategy for describing their structural properties. In this study we show that iterative deconstruction can also serve to classify personal networks into typologies. With longitudinal data from a sample of 69 students, we found that denser networks are more resistant to fragmentation while those organized in defined subgroups usually have a shorter deconstruction process. In addition, the deconstruction strategy allows knowing the hierarchical structure of personal networks, made up of nested subgroups.

Recanonizing Rhetoric: The SecretinandofDiscourse

AbstractChallenges to rhetoric’s canon often occur under the rubric of revising that canon and its foundational, shared meaning. Read through the strategies of deconstruction, the secret offers a common ground for recanonizing approaches by centering either a concealed quantity in ancient rhetoric’s granular archive (the secret in discourse) or an unfolding idea whose transformation has rendered it unrecognizable to its original version (the secret of discourse). This article draws on Jacques Derrida’s “White Mythology” (1974) and A Taste for the Secret (2001) before addressing how the secret’s registers in and of discourse animate de- and recanonizing readings of ancient Greek and Roman rhetoric. Its implications address scholars distressed by the durable forms of oppression ensconced in rhetoric’s ancient canon.

An integrated acetic acid-catalyzed hydrothermal-pretreatment (AAP) and rapid ball-milling for producing high-yield of xylo-oligosaccharides, fermentable glucose and lignin from poplar wood

An integrated pretreatment that realizing effective fractionation and targeted valorization can guarantee the implementability to future biorefinery scenario. In the present study, a stepwise approach using acetic acid-catalyzed hydrothermal pretreatment (AAP) and rapid ball-milling process was successfully developed for producing high-yield of xylo-oligosaccharides (XOS), fermentable glucose and native lignin from poplar wood. It was found that the AAP removed the most hemicelluloses, releasing the highest yield (36.16%) of XOS at 160 °C for 1 h. Subsequent rapid ball-milling pretreatment for 10 min led to a remarkable increase in the saccharification efficiency from 40.68% to 91.35%. Meanwhile, the residual lignin fractions exhibited abundant β-O-4 linkages, which are beneficial to catalytic hydrogenolysis of these lignin fractions into the aromatic chemicals. Considering the integrated process could effectively produce XOS, fermentable glucose, and the residual lignin with well-preserved structures, the proposed process is a promising and efficient deconstruction strategy in current biorefinery scenario.

Deconstructive Synthesis of Bridged and Fused Rings via Transition-Metal-Catalyzed "Cut-and-Sew" Reactions of Benzocyclobutenones and Cyclobutanones.

ConspectusBridged and fused rings are commonly found in biologically important molecules. Current tactics to construct these ring systems are primarily based on stepwise ring formation (i.e., making one ring first followed by making another) and cycloaddition reactions (e.g., Diels–Alder reaction). To seek a complementary and perhaps more unified ring-forming approach, a deconstructive strategy based on C–C bond activation of cyclic ketones has been conceived. The named “cut-and-sew” reaction uses cyclic ketones with a tethered unsaturated moiety as substrates, which involves oxidative addition of a transition metal into the ketone C–C bond followed by intramolecular insertion of the unsaturated unit. This strategy has proved successful to access diverse ring scaffolds that are nontrivial to construct otherwise.This Account offers a concise summary of our laboratory’s systematic efforts in developing transition metal-catalyzed cut-and-sew reactions for the synthesis of bridged and fused rings over the past 10 years. In particular, we will focus on the reactions using readily available benzocyclobutenones and cyclobutanones. To date, the scope of the cut-and-sew reactions has been greatly expanded. First, diverse unsaturated moieties can serve as suitable coupling partners, such as alkenyl, alkynyl, allenyl, carbonyl, and iminyl groups. Second, a variety of reaction modes have been uncovered. In this account, (4 + 2), (4 + 2 – 1), and (4 + 1) cycloadditions that lead to a range of bridged or fused scaffolds will be summarized. Third, enantioselective transformations have been realized to efficiently construct chiral scaffolds, which are enabled by two strategies: enantio-determining migratory insertion and desymmetrization of cyclobutanones. Fourth, the synthetic applications have been demonstrated in streamlined total syntheses of a number of complex natural products. Compared to conventional synthetic logics, the cut-and-sew reaction allows the development of new bond-disconnecting strategies. Thus, the syntheses of (−)-cycloclavine, (−)-thebainone A, penicibilaenes, and the proposed cycloinumakiol are discussed in more detail.In addition to the narrative of the development of the cut-and-sew chemistry, this Account also aims to provide core guiding foundations and inspirations toward broader deconstructive synthetic applications through C–C bond cleavage. It is anticipated that more classes of cyclic compounds could serve as the substrates beyond benzocyclobutenones and cyclobutanones, and more diverse unsaturated moieties could be coupled. It can also be envisaged that more innovative utilization of this cut-and-sew strategy in complex organic syntheses will be revealed in the near future.