Structural Hierarchy Research Articles

Cage-by-cage supramolecular polymerization via panel-decorated triphenylphosphine organic cage

Significant efforts have been dedicated to designing porous organic cage compounds with geometric complexity and topological diversity. However, the use of these cage molecules as premade building units for constructing infinite cage-based superstructures remains unexplored. Here, we report the use of a panel-decorated phosphine organic cage as a special monomer to achieve supramolecular polymerization, resulting in cage-by-cage noncovalent polymers through the synergy of metal-coordination and intercage π–π dimerization. At a monomer concentration of 122 mM, the average degree of polymerization reaches 17, corresponding to a molecular weight of 26 kDa. The obtained cage-based supramolecular polymers can further hierarchically self-assemble into vesicular morphologies or one-dimensional nanofiber architectures. Selective control over the cosolvents can regulate their structural hierarchy and assembled morphology. This approach paves a new way for the construction of cage-based hierarchical assemblies and materials.

3D Printing of Ordered Mesoporous Silica Using Light‐Induced Sol‐Gel Chemistry

AbstractMesoporous ceramic materials used in applications such as catalysis, filtration, or sensing, are usually hierarchically structured. Thereby, their structural hierarchy is often inherently related to the manufacturing methods and cannot be independently locally designed along all length scales. This study combines light‐based additive manufacturing and bottom‐up light‐induced self‐assembly (LISA) sol‐gel chemistry to engineer hierarchically structured porous silica from the nanoscale to the macroscopic object geometry. A LISA‐based printing solution that enables printing of ordered mesoporous silica with geometrically complex shapes by using a commercially available digital light processing (DLP)‐based 3D printer is presented. This approach exploits the self‐assembly process of block copolymer mesopore templates, such as Pluronic P123, and hydrolysis and condensation of silica precursors upon irradiation in the 3D printer to shape mesoporous silica objects. Furthermore, different resins are added to the LISA solution to print 3D silica‐resin objects. Mesoporous silica objects up to 10 mm in size, consisting of ordered mesopores with diameters around 5 nm and having high specific surface areas of ≈400 m2 g−1 are successfully printed with a fast and easy post‐processing.

Intercage Polymerization of Postfunctionalized Phosphine Organic Prisms into Cage-Based Assemblies with Tunable Morphologies.

Great effort has been dedicated to the engineering of porous organic cages (POCs) in geometry and topology. Yet, harnessing these cage-like entities as premade building units to construct infinite cage-based superstructures remains elusive. In this study, we design a type of vertex-modified phosphine organic prism by a postfunctionalized approach and use it as a ditopic cage monomer to achieve an intercage supramolecular polymerization via the synergy of metal coordination and π-π dimerization. The resulting cage-by-cage polymers can further hierarchically organize into superstructures of diverse morphologies and dimensionalities, including 1D fibers, 2D lamellae, and 3D vesicles. Control over the cosolvents is capable of well regulating their structural hierarchies and self-assembled shapes. This would pave a way for the creation of cage-based supramolecular assemblies and nanomaterials.

Introducing the Social Constructions of Race, Gender, and Socioeconomic Class in a Health Sciences Curriculum

This paper discusses approaches to teaching an introductory social science course geared toward students majoring in health sciences programs. Using the methodologies and scholarship of history, sociology, anthropology, and political science, the course explores the ways in which conceptions of human identity—namely the categories of race, gender, and socioeconomic class—are socially and culturally meaningful. The authors discuss specific classroom strategies for highlighting the historical role of the natural sciences and the health professions in erecting and reifying social structures of racial, gender, and socioeconomic class hierarchy and oppression and suggest primary sources and classroom exercises to illustrate how the social construction of identity relates and contributes to ongoing health disparities. As instructors, we urge students to consider how they, as future health care providers, might apply these concepts in clinical settings to mitigate harm and promote health equity.

Bir Zamanlar Anadolu’da Filmi Bağlamında Türk Toplum Yapısında Bürokrasi, İktidar ve Kadın Görünümü

Nuri Bilge Ceylan's "Once Upon a Time in Anatolia" explores social dynamics and authority relations around a murder investigation set deep in Anatolia. The movie offers a good example of reading Turkish social structure through themes such as authority, hierarchy, bureaucracy and female innocence. Throughout the film, Power and hierarchy in the Turkish social structure reveals the authority structures and authority relations in the village society, while at the same time criticizing the bureaucratic structure in the society through bureaucracy, obstacles and dysfunction in the investigation process. Instead of the usual bureaucratic structure, Turkish society's perspectives, views and understanding of bureaucracy, authority and hierarchy relations and the manifestations of these concepts in society are seen. At the same time, it emphasizes the innocence of women, the powerlessness of female characters and the obligation to conform to social norms, thus opening up for discussion gender roles and the position of women in society. It tries to explain the Turkish social structure's perspective on women in the context of concepts such as innocence and punishment, as well as in the context of women and gender roles. In a general context, the relationship between concepts such as dichotomies, power, authority, bureaucracy and the Turkish social structure is revealed. The quiet and isolated village life of Anatolia actually harbors the complexity of social dynamics and power relations. By reflecting this complexity, the film allows for a deeper understanding of Anatolian society. "Once Upon a Time in Anatolia" is not just the story of a murder investigation, but rather a social and sociological portrait that examines the complexity of social structures and relations. Keywords- Authority Bureaucracy, Turkish Social Structure Woman

Biomimetic Mechanically Robust Chiroptical Hydrogel Enabled by Hierarchical Bouligand Structure Engineering.

Natural bouligand structures enable crustacean exoskeletons and fruits to strike a combination of exceptional mechanical robustness and brilliant chiroptical properties owing to multiscale structural hierarchy. However, integrating such a high strength-stiffness-toughness combination and photonic functionalities into synthetic hydrogels still remains a grand challenge. In this work, we report a simple yet general biomimetic strategy to construct an ultrarobust chiroptical hydrogel by closely mimicking the natural bouligand structure at multilength scale. The hierarchical structural engineering of long-range ordered cellulose nanocrystals' bouligand structure, well-defined poly(vinyl alcohol) nanocrystalline domains, and dynamic interfacial interaction synergistically contributes to the integration of high strength (23.3 MPa), superior modulus (264 MPa), and high toughness (54.7 MJ m-3), as well as extraordinary impact resistance, which far exceed their natural counterparts and synthetic photonic hydrogels. More importantly, seamless chiroptical and solvent-responsive patterns with high resolution can also be scalably integrated into the hydrogel by localized manipulation of the photonic band, while maintaining good ionic conductivity. Such exceptional mechanical-photonic combination holds tremendous potential for applications in wearable sensors, encryption, displays, and soft robotics.

Digital populism in Iraq: the case of Muqtada al-Sadr

ABSTRACT This contribution aims to examine the extent to which a populist political style can break through the established structures of a religious hierarchy using authority in the field of politics. Citing the example of the digital communication of the Iraqi cleric Muqtada al-Sadr, it will be argued that al-Sadr is assuming functions beyond his relatively low theological rank through an authority gained in the political field via populism. The paper explores not only the interplay of different logics of authority but also how far al-Sadr´s populism differs, due to his specific role as a politicizing Shiite cleric, from other forms of populism.

Biomechanical functions analysis of the Mallard webbed foot: A study of macroscopic and microscopic material assembly and tendon morphology

The mallard webbed foot represents an exemplary model of biomechanical efficiency in avian locomotion. This study delves into the intricate material assembly and tendon morphology of the mallard webbed foot, employing both macroscopic and microscopic analyses. Through histological slices and scanning electron microscopy (SEM), we scrutinized the coupling assembly of rigid and flexible materials such as skin, tendon, and bone, while elucidating the biomechanical functions of tendons across various segments of the tarsometatarsophalangeal joint (TMTPJ). The histological examination unveiled a complex structural hierarchy extending from the external integument to the skeletal framework. Notably, the bone architecture, characterized by compact bone and honeycombed trabeculae, showcases a harmonious blend of strength and lightweight design. Tendons, traversing the phalangeal periphery, surrounded by elastic fibers, collagen fibers, and fat tissue. Fat chambers beneath the phalanx, filled with adipocytes, provide effective buffering, enabling the phalanx to withstand gravity, provide support, and facilitate locomotion. Furthermore, SEM analysis provided insights into the intricate morphology and arrangement of collagen fiber bundles within tendons. Flexor tendons in proximal and middle TMTPJ segments adopt a wavy-type, facilitating energy storage and release during weight-bearing activities. In contrast, distal TMTPJ flexor tendons assume a linear-type, emphasizing force transmission across phalangeal interfaces. Similarly, extensor tendons demonstrate segment-specific arrangements tailored to their respective biomechanical roles, with wavy-type in proximal and distal segments for energy modulation and linear-type in middle segments for enhanced force transmission and tear resistance. Overall, our findings offer a comprehensive understanding of the mallard webbed foot's biomechanical prowess, underscoring the symbiotic relationship between material composition, tendon morphology, and locomotor functionality. This study not only enriches our knowledge of avian biomechanics but also provides valuable insights for biomimetic design and tissue engineering endeavors.

Enhanced photoelectrochemical water splitting by a 3D hierarchical sea urchin-like structure: ZnO nanorod arrays on TiO2 hollow hemisphere

A hierarchical sea urchin-like hybrid metal oxide nanostructure of ZnO nanorods deposited on TiO2 porous hollow hemispheres with a thin zinc titanate interface layer is specifically designed and synthesized to form a combined type I straddling and type II staggered junctions. The HHSs, synthesized by electrospinning, facilitate light trapping and scattering. The ZnO nanorods offer a large surface area for improved surface oxidation kinetics. The interface layer of zinc titanate (ZnTiO3) between the TiO2 HHSs and ZnO nanorods regulates the charge separation in a closely coupled hierarchy structure of ZnO/ZnTiO3/TiO2. The synergistic effects of the improved light trapping, charge separation, and fast surface reaction kinetics result in a superior photoconversion efficiency of 1.07% for the photoelectrochemical water splitting with an outstanding photocurrent density of 2.8 mA cm−2 at 1.23 V versus RHE.

Entropy, Deterministic Chaos, and New Forms of Intelligibility: A Shared Frame of Reference for Physics and Psychology

Prigogine’s theory of dissipative structures provides a general account of entropy-driven self-organized transitions through hierarchies of structures separated by discontinuities. The theory encompasses a wide range of evolving systems throughout nature and culture. Possibilities for operationalizing a new collective rationality spanning physics and psychology emerge from Prigogine’s emphases on two distinct senses of probability, on the concept of the sufficient statistic, and on the role and limitations of the Poisson distribution in formulating a “nonlinear master equation.” Unnoted by Prigogine are correspondences of all three of these issues in the mathematical foundations of statistics and measurement established in the works of Ronald Fisher and his student, Georg Rasch. The three areas of correspondence inform models enabling specifically metrological approaches to quality-assured quantification across the sciences. Prigogine’s sense of “deterministic chaos” is re-expressed in measurement terms as stochastic invariance and the need for “a supplementary parameter” augmenting the Poisson distribution is related to a rating scale model of measurement. In light of these connections, this paper proposes that what Prigogine anticipates as a “new intelligibility” and a new science of “collective rationality” could be pragmatically operationalized in a new metrological infrastructure made coherent by the generality of entropy-driven nonequilibrium processes.

Effects of structural hierarchy and size on mechanical behavior of nanoporous gold

Nanoporous gold with a hierarchical structure has prospects as an advanced functional material with enhanced mechanical properties, but how the hierarchical structure affects its mechanical properties compared to a unimodal structure has not been revealed. Here, we investigate the mechanical behavior of hierarchically-structured nanoporous gold and unimodally-structured nanoporous gold with the same relative density by micropillar compressive tests in dry and electrolyte environment. The ligament size at the upper-level structure in hierarchically-structured nanoporous gold and the ligament size in unimodally-structured nanoporous gold are kept similar, while having hierarchically-structured samples with ligament sizes of 10 to 50 nm at lower-level structure. We find that hierarchically-structured nanoporous gold shows greater compressive strength and pronounced stress-variation by oxidization of the surface compared to unimodally-structured nanoporous gold. A ligament-size dependency on the lower-level structure in hierarchical samples is observed, with compressive strength and stress variation by surface oxidation increasing as the lower-level ligament size decreases. Three-dimensionally reconstructed structure analysis suggests that the enhanced mechanical properties of hierarchically-structured nanoporous gold are attributed to the better-connected network of ligaments originating from two separated dealloying-coarsening procedures. The influence of dislocation activities depending on characteristic sizes is also discussed to elucidate the distinguished mechanical behavior.

Research of news text classification method based on hierarchical semantics and prior correction

News text is an important branch of natural language processing. Compared to ordinary texts, news text has significant economic and scientific value. The characteristics of news text include structural hierarchy, diverse label categories, and limited high-quality annotation samples. Many machine learning and deep learning methods exist to analyze various forms of news text. However, due to label imbalance, hierarchical semantics, and confusing labels, current methods have limitations. Therefore, this paper proposes a news text classification framework based on hierarchical semantics and prior correction (HSPC). Firstly, data augmentation is used to enhance the diversity of the training set and adversarial learning is employed to improve the resistance of the model with its robustness. Then, a hierarchical feature extraction approach is employed to extract semantic features from different levels of news texts. Consequentially, a feature fusion method is designed to allow the model to focus on relevant hierarchical semantics for label classification. Finally, highly confusing label predictions are corrected to optimize the label prediction of the model and improve confidence. Multiple experiments are performed on four widely used public datasets. The experimental results indicate that HSPC achieves higher classification accuracy compared to other models. On the FCT, AGNews, THUCNews, and Ohsumed datasets, HSPC improves the accuracy by 1.03%, 1.38%, 2.55%, and 1.15%, respectively, compared to state-of-the-art methods. This validates the rationality and effectiveness of the designed mechanisms.

Enhancement of acousto-optic interaction using a phoxonic cavity with structural hierarchy

We propose a phoxonic cavity with structural hierarchy to enhance acousto-optic interaction in acoustically dissipative media. In a conventional phoxonic cavity, interaction between infrared light and hypersound with the same wavelength scale became weak due to large acoustic attenuation whose coefficient is proportional to the square of the frequency. To alleviate the acoustic attenuation, it is necessary to use low-frequency sound with much longer wavelength than the infrared light, but the conventional phoxonic cavity is not suitable for confining such hypersound and infrared light simultaneously. In this study, we employ the concept of structural hierarchy into the phoxonic cavity to control infrared light and hypersound with different wavelength scales. A phoxonic cavity with two different scales achieves the acousto-optic interaction approximately 1.6 times that in the conventional one. To further enhance the interaction, we adjust geometrical constitution and material properties of the two-scale phoxonic cavity using quasi-static homogenization theory, leading to the interaction about 2.1 times that in the conventional cavity.

Argument structure hierarchies and alternations in causative and double object constructions

Many varieties of Arabic display a causative construction that adds a causer to the argument structure of the underlying verb. When this verb is transitive, the causative derivative is ditransitive. In the Arabic varieties, these ditransitive causative verbs display a double object alternation fully parallel to the alternation that change of possession verbs like give display. I claim that two current analyses of the double object alternation do not extend naturally to Arabic causative constructions. Rather, the parallels between causative and change of possession ditransitives in Arabic implicate an analysis of change of possession verbs in which the recipient argument (parallel to the external argument of the underlying verb in causative ditransitives) is base generated syntactically superordinate to the theme (parallel to the internal argument of the underlying verb in causative ditransitives). The unifying analysis I propose draws on certain elements of the ‘VP-shell’ analysis of Larson (1988) as well as the ‘neo-constructionist’ approach of Ramchand (2008; 2018) regarding the syntactic instantiation of argument structure. The Arabic variety I take as an exemplar of the Arabic causative construction is Syrian.

Switchable adhesion of gecko-inspired hierarchically wedge-mushroom-shaped surface

The outstanding adhesion ability of gecko is mainly attributed to its sophisticated hierarchical adhesive structures. The relationship between structure and function of gecko adhesion has been attracting scientific research interests. However, studies on the effect of the structural hierarchy on the interfacial switchable adhesion remain limited. In the present paper, a gecko toe-inspired hierarchically wedge-mushroom-shaped adhesive is fabricated. The first level is NdFeB particles decorated asymmetrical wedges, mimicking the lamellar structures on gecko toe. The asymmetry of the wedge can guarantee the anisotropic adhesion in different directions. The second level is the mushroom-shaped fibrils on the sloping surface of the wedges, mimicking gecko seta arrays. The mushroomed fibrils can be used to enhance the normal interfacial adhesion. The fabricated hierarchical adhesive possesses the adhesion advantages of both the wedge- and mushroom-shaped structures. Switchable adhesion can be realized both by loading-dragging-pulling (LDP) mode and actuation of external magnetic field. Specially, the switchable adhesion achieved under the control of magnetic field can overcome the drawback of shear induced adhesion limit of normal direction in LDP mode. Furthermore, the fabricated hierarchical adhesive can realize releasing ultra-light objects and highly efficient self-cleaning ability. The hierarchical adhesive inspired by gecko demonstrated in this study may have potential applications in the fields of micro /nano manufacturing and flexible devices.

A multi-criteria framework for electric vehicle charging location selection using double hierarchy preferences and unknown weights

The adverse effects of traditional vehicles on the environment increase the demand for clean vehicles, such as electric vehicles (EVs). The correct positioning of the charging points for such vehicles certainly promotes the acceptance and spread of EVs. Indeed, selecting optimal locations for electric vehicle charging stations (EVCS) is crucial for shaping a sustainable future. This study introduces an integrated methodology under a double hierarchy linguistic context with a criteria importance through an inter-criteria correlation (CRITIC) technique for experts' reliability determination, an attitudinal Cronbach's method for criteria weight estimation, and a novel multi-criteria technique considering the compromise ranking of alternatives from distance to ideal solution (CRADIS) formulation for optimal EVCS location selection. Based on the results, criteria such as service capability, ecological impact, land cost, and traffic density are the most crucial, with Manapparai, India, as the optimal location for a new EVCS construction. Further, a crucial finding is that the social dimension is substantial compared to the economy and environment dimensions for EVCS location selection. The novelty of the paper is that (i) uncertainty and expression of choices in natural language form for locations for EVCS are modeled effectively using a double hierarchy structure, (ii) experts' weights are obtained methodically by considering hesitation and interactions among experts, (iii) interdependencies among criteria and importance of experts are considered during criteria weight determination, and (iv) locations are ranked by not only considering criteria type but also resembles closely to the human-centric decision process. A detailed sensitivity analysis is further conducted to prove the proposed approach's effectiveness and stability. In the context of sustainable transportation, the work could contribute to the relevant literature through a powerful decision-making tool.

경찰공무원의 워라벨에 미치는 영향요인에 관한 연구

Police officials provide security services to the public, have an organizational structure of hierarchy and hierarchy, and enforce the law, so the intensity of their work is relatively high compared to other organizations. Recently, our society places importance on ‘work-life balance’, which pursues work-life balance. The purpose of this study is to determine what factors influence work-life balance due to the nature of work in police organizations. Accordingly, this study used secondary data from the 2021 survey on the work and life of female civil servants in the Jeju region conducted by the Jeju Women and Family Research Institute. Factors influencing work-life balance were selected as promotion factors, work factors, education and training factors, and work awareness factors by reviewing domestic and international previous studies. In addition, this study compared female police officers and married women police officers to identify factors affecting work-life balance. This study attempted to achieve the purpose of the study through descriptive statistics, correlation analysis, and hierarchical regression analysis using the SPSS 21.0 program. As a result of the study, work factors and promotion factors were found to be factors affecting the work-life balance of married women police officers, and only work factors were found to have an effect on the work-life balance of female police officers. Based on these research results, we would like to make policy recommendations regarding the work-life balance of police officers.

LollipopE: Bi-centered lollipop embedding for complex logic query on knowledge graph

Answering complex First-Order Logic (FOL) query plays a vital role in multi-hop knowledge graph (KG) reasoning. Geometric methods have emerged as a promising category of approaches in this context. However, existing best-performing geometric query embedding (QE) model is still up against three-fold potential problems: (i) underutilization of embedding space, (ii) overreliance on angle information, (iii) uncaptured hierarchy structure. To bridge the gap, we propose a lollipop-like bi-centered query embedding method named LollipopE. To fully utilize embedding space, LollipopE employs learnable centroid positions to represent multiple entities distributed along the same axis. To address the potential overreliance on angular metrics, we design an angular-based and centroid-based metric. This involves calculating both an angular distance and a centroid-based geodesic distance, which empowers the model to make more informed selections of relevant answers from a wider perspective. To effectively capture the hierarchical relationships among entities within the KG, we incorporate dynamic moduli, which allows for the representation of the hierarchical structure among entities. Extensive experiments demonstrate that LollipopE surpasses the state-of-the-art geometric methods. Especially, on more hierarchical datasets, LollipopE achieves the most significant improvement.

Abstract 3781: Tracking triple negative breast cancer (TNBC) evolution in the molecular residual disease (MRD) setting in the c-TRAK TN clinical trial

Abstract Background: Circulating tumor DNA (ctDNA) to track early tumor clones and to identify the point of origin of clones in relapsed disease, could provide novel insights into the impact of heterogeneity on the development of MRD and relapse in TNBC. Methods: c-TRAK TN recruited 161 patients (pts) with early TNBC into prospective ctDNA surveillance after curative therapy. Two distinct early tissue samples were provided, and a subset provided a relapse biopsy. Tissue was whole exome sequenced (WES) and relapse plasma DNA underwent error-corrected WES. Clonal evolution analysis was performed for pts who developed MRD with a minimum of 2 samples with WES (n=44), and non-relapse pts with samples before and after neoadjuvant chemotherapy (NAC) (n=16). Clonal structures were inferred with Pyclone; the founding clone as the cluster with highest cellular prevalence (CP). Clones were validated and tracked using the RaDaR ctDNA assay, supplemented with a median of 9 (range 6-45) variants specific to each clone. Cluster hierarchy and phylogenetic tree structure was derived using ClonEvol. Results: A median of 3 (range 1-5) clones per pt validated. Non-validated clones (12.9%) and pts with only 1 clone validated were removed, resulting in 56 pts for analysis. To assess the impact of spatial heterogeneity, contemporaneous paired early tissue was available from 17 pts who developed MRD. Primary tumor subclones were detected in the MRD or relapse in 88.9% (8/9) pts with a subclone detected in all regions, versus 37.5% (3/8) pts with a subclone unique to 1 region (p = 0.049). To assess the impact of NAC, paired tissue before and after NAC, was available in 32 pts. Distinct sub-clonal evolutionary patterns were identified. Subclones increased in CP or were first detected after NAC in 75% (24/32) pts. Subclones present prior to NAC were reduced or lost in 62% (20/32) pts. Sub-clonal persistence was observed in 46.8% (15/32) pts. Subclones first detected following NAC were detected in the MRD in 60% (6/10) pts. Following NAC, subclones reduced or lost re-emerged in the MRD in 30% (3/10) pts, versus subclones that persisted which were detected in the MRD in 100% (9/9) pts (p=0.003). In 21 pts, relapse samples were available. Relapse-unique subclones were identified in 57% (12/21) pts, with 2 new subclones in 1 pt. Relapse-unique subclones were not detected in MRD in 41.6% (5/12) pts, and were detected in the MRD in 66.7% (8/12) of pts. Conclusion: Polyclonal metastasis is a common mode of metastasis in TNBC, with frequent detection of primary tumor subclones in the metastasis. NAC provides an evolutionary bottleneck, with subclones detected post NAC being the most likely to persist into the MRD and subsequent relapse. Relapsed cancer frequently had subclones not detected in the primary cancer, with approximately half of these potentially late arising, and half detectable in MRD suggesting early establishment of diversity. Citation Format: Maria Coakley, Rosalind J. Cutts, Prithika Sritharan, Sarah Hrebien, Claire Swift, Kathryn Dunne, Lucy Kilburn, Katie Goddard, Guillermo Villacampa, Patricia Rojas, Warren Emmett, Christodoulos Pipinikas, Peter Hall, Catherine Harper-Wynne, Tamas Hickish, Iain Macpherson, Alicia Okines, Andrew Wardley, Duncan Wheatley, Simon Waters, Judith M. Bliss, Isaac Garcia-Murillas, Nicholas C. Turner. Tracking triple negative breast cancer (TNBC) evolution in the molecular residual disease (MRD) setting in the c-TRAK TN clinical trial [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2024; Part 1 (Regular Abstracts); 2024 Apr 5-10; San Diego, CA. Philadelphia (PA): AACR; Cancer Res 2024;84(6_Suppl):Abstract nr 3781.

Energy absorption characteristics of asymmetric tree-like fractal gradient hierarchical structures

Bionic gradient hierarchy design as a design method that can effectively improve the structural crashworthiness, but its current research only focuses on the symmetric fractal method related to the discussion. In view of this, this article carries out the innovative design and research of asymmetric tree-like fractal gradient hierarchy structure (ATFGHS). The results show that the crashworthiness of the structure can be greatly improved by using the asymmetric tree-like fractal gradient hierarchy design method. Specifically, the ATFGHS-P3 showed a 98% increase in energy absorption (EA), a 98% increase in specific energy absorption (SEA), and an 84% increase in crush force efficiency (CFE) compared to a conventional hexagonal multicellular tube. The completion of this study provides valuable insights into the design and optimization of novel lightweight thin-walled energy-absorbing structures.