Search Results (24)

The references of most of the observations that econometricians have are ill defined. To use such data in an empirical analysis, the econometrician in charge must find a way to give them economic meaning. In this paper, I have data and an econometric model, and I set out to show how economic theory can be used to interpret the variables and parameters of my econometric model. According to Ragnar Frisch, that is a difficult task. Economic theories reside in a Model World and the econometrician’s data reside in the Real World; the rational laws in the model world are fundamentally different from the empirical laws in the real world; and between the two worlds there is a gap that can never be bridged To accomplish my task, I build a bridge between Frisch’s two worlds with applied formal-econometric arguments, invent a pertinent model-world economic theory, walk the bridge with the invented theory, and use it to give economic meaning to the variables and parameters of my econometric model. At the end I demonstrate that the invented theory and the bridge I use in my analysis are empirically relevant in the empirical context of my econometric model. Full article

The characterization of lithology within Quaternary aquifers holds significant geological importance for the protection, management, and utilization of groundwater resources, yet it continues to present considerable challenges. Indicator Kriging (IK) is a non-parametric, probability-based method of spatial interpolation. It considers the correlation and variability between data points, and its popularity stems from its alignment with geological experts’ principles. However, it still encounters issues in complex geological conditions. To address the limited capacity of conventional IK in reproducing geological variables within heterogeneous geological settings, this study develops an ordered IK method incorporating field variogram function parameters. This framework dynamically extends IK applications by integrating stratigraphic extension trends, requiring experts to formalize spatial variation trends into geological knowledge data, subsequently transformed into constraint parameters for interpolation. Estimation paths are determined via Euclidean distances between points-to-be-estimated and valid data, executing ordered IK following near-to-far and bottom-to-top principles. Results directly depict QLS formation spatial distributions or undergo expert modification for quantitative analysis, demonstrating superior integration of geological knowledge compared to empirical variogram fitting and partitioned IK estimation. The method reduces deviation from expert-interpreted spatial distributions while maintaining computational efficiency and multi-factor integration, with three case analyses confirming enhanced accuracy in lithology distribution reproduction and improved geostructural congruence in complex geological reconstruction. This approach revitalizes Kriging applications in complex geological research, synergizing domain cognition with computational efficacy to advance precision in geological characterization and support government decision-making. Full article

The increasing digitalization of the world underscores the critical importance of both social and technical aspects in software engineering practice. While prior research links socio-technical congruence (STC) to positive workstream outcomes, the current convergence of digital products, technologies, and social systems introduces novel and often unpredictable results, driven by the complex interplay of leadership, organizational culture, and software engineering practices operating as a complex adaptive system (CAS). This paper proposes a novel model for adopting socio-cultural practices to bridge the social and technical divide through the lens of STC. The innovation of the model lies in its socio-technical evolutionary journey, built upon dual systems: (1) an analytical System-I focused on enhancing robustness via compliance with Lean and Agile socio-cultural practices, and (2) a holistic System-II emphasizing resilience through an acceptance of interdependence of system actors that requires sense-making techniques. A methodology based on this model was piloted across six case studies: three in an Enterprise IT organization and three in two business units undergoing transformations on Lean and Agile plus DevOps adoption. System-I’s robustness was evaluated through surveys and structured STC maturity assessments (self and guided ones). System-II employed sense-making techniques to foster resilience within the system of work (SoW), laying the groundwork for their evolutionary journeys. The findings reveal a significant need for greater alignment between management (as transformation agents) and software engineering practices. However, the study suggests actionable guidelines, grounded in new principles and mental models for operating within a CAS, to cultivate enhanced resilience and robustness in a VUCA world. Full article

Data generated using new approach methodologies (NAMs), including in silico, in vitro, and in chemico approaches, are increasingly important for the hazard identification of chemicals. Among NAMs, (quantitative) structure–activity relationship (Q)SAR models occupy a peculiar position by allowing (in principle) a toxicity estimate on the sole basis of chemical structural information, leveraging upon toxicity profiles of already tested chemicals (a training set). Consequently, the metrics adopted for the estimation of both the congruence of the test chemicals with the training set and the risk categorization are of paramount importance. This paper comprises a small-scale, mainly methodological study to investigate these aspects and assess the general coherence between the results from different (Q)SAR models applied to the assessment of the carcinogenicity of pesticide-active substances and metabolites. The results of the present study underline the significant potential of using (Q)SAR models, together with limitations, such as inconsistencies in results across models and the intrinsic constraints of their applicability domain. The critical role of a priori strategies adopted in defining the applicability domain of the models is highlighted, emphasizing the need for user-transparent definitions. This is a crucial step for a sensible integration of the information coming from different NAMs. Full article

Heritage conservation projects involve diverse stakeholders, such as property owners, communities, NGOs, and governments, whose “misaligned” incentives produce high transaction costs and often pose persistent challenges. Considering heritage sites as analogous to common pool resources (CPR), this study examines whether sustainable heritage projects adhere to Elinor Ostrom’s design principles for managing CPRs. The UNESCO Asia-Pacific Awards for Cultural Heritage Conservation are used as a benchmark to identify best practices in private–public collaborations over the past two decades. Through content analysis of award application dossiers, the researchers assess whether the design principles are applied differently between successful and unsuccessful projects and evaluate the sufficiency of Ostrom’s principles in the heritage conservation context. The findings indicate that four design principles are more consistently balanced in award-winning projects: “Collective Choice Arrangements”, “Congruence with Local Conditions”, “Monitoring Mechanisms”, and “Minimum Recognition of Rights”. Additionally, successful projects tend to incorporate “people growth-oriented activities”, such as skills training and education for local workers and youth, benefiting current and future project beneficiaries. These insights suggest that adapting Ostrom’s design principles can enhance the sustainability of heritage conservation efforts by better aligning stakeholder incentives and addressing the “misalignment of incentives” challenge commonly encountered in such projects. Full article

The purpose of this study is to identify motivational profiles in sustainable career trajectories via emerging latent class methods using a multilevel schema between engagement in sustainable career practices, developing and utilizing job competency—a key marker for human capital development—and leader–member interaction. Using latent class analysis (LCA), we further identify different types of motivational profiles that reflect the principle and adaptable nature with which individuals can relate their sustainability values to career decisions. Results indicate large practical differences within latent classes, evidencing higher career adaptability and sustainability principles congruence in some groups. These differences highlight that intrinsic motivation, adaptability, and elements connected to the sector drive sustainable career engagement that should ensure enduring satisfaction with commitment to a chosen profession. In explaining why sustainability drives career advancement, this study takes a theoretical standpoint from three overarching theories: Career Construction Theory, Social Cognitive Career Theory (SCCT), and Sustainable Career Theory. The practical recommendations are that companies must offer programs at the sector level to increase career adaptability (readiness) and help employees build sustainable careers. This study calls attention to the importance of producing participative content that is demanded by organizations seeking greater resilience, well-being in work contexts, and their long-lasting survival as institutions. Full article

Collective action remains a fundamental approach to governing common pool resources, and Ostrom’s design principles (DPs) have been widely used for analyzing such governance. However, grasslands, as typical common pool resources, have received limited attention within this framework in China. Based on the village-level survey data in Yushu, Qinghai, we utilized DPs as fuzzy sets to discern nuances among cases and identify necessary and sufficient conditions for successful collective governance using the fsQCA method. Our findings are as follows: (i) Diverse combinations of institutional rules can lead to favorable collective governance outcomes. Achieving good outcomes requires a comprehensive approach that encompasses rules, rule enforcement, and rule-making arenas. (ii) Congruence with local conditions (DP2) emerges as a pivotal and foundational condition in collective grassland governance. Therefore, it is crucial to formulate strategic governance rules that adapt to local realities and capitalize on regional advantages to ensure long-term success. (iii) The establishment of ecological husbandry cooperatives is in line with local realities and can help achieve high grassland governance performance. The improvement in ecological, economic, and social benefits brought about by cooperatives constitutes a crucial factor for promoting herders’ active involvement in the collective management of grasslands. Full article

In popular discourse, it is not uncommon to highlight the distinctiveness of systems of “Eastern thought” (e.g., Daoism) in contrast to so-called “Western” systems. However, there is an interesting congruence between Daoism and Meister Eckhart’s mystical theology, particularly in regard to the concepts of the Dao and the Godhead. Like the Dao, the Godhead is the “ground” of all being, simultaneously radically transcendent and immanent, considered as distinct from all things and yet the enfolded totality of them. Both these concepts are also dynamic principles, continually manifesting in the flux of the ever-changing universe. In both systems, nature at its fundamental level is characterized by namelessness, emptiness, encompassment, and dynamism. Nature as “ground” is also a religio-ethical concept. Humans are called to align with this ground and enter into a state of wandering joy, called wuwei (non-action) in Daoism and the “wayless way” for Eckhart. Through reverting to their indeterminate source, the person is able to become detached from rigid teleological norms. Thus is laid the foundation for an ethics of non-attachment, wherein individuals dwell in an existential flow and are attuned to all yet anchored unquestionably to none. Full article

Patellar fractures represent approximately 1% of all fractures and the pattern is influenced by the quality of the bone and the energy of the trauma. Transverse fractures are associated with extensor mechanism failure and interruption of joint congruence. Patellar fractures are generally fixed using tension band principles, through K-wires and metal cerclage. The tension band was conceived to transform the considerable tensile force applied to the patella into a compressive one to obtain a stable fixation. The use of metal implants might be associated with a significant discomfort, mostly related to the irritating action of K-wires and cerclage on the surrounding soft tissues, often leading to the need for implant removal. Therefore, we introduced an original technique for fix patellar fractures by using only a non-adsorbable braided polyblend suture. Postoperative care included progressive range of motion recovery using an articulated knee brace and a specific protocol. The suture-only tension band technique seems to be a useful technique in terms of complications and reoperation rate while allowing secure and early mobilization. Full article

A surge in successful Information Security (IS) breaches targeting Research and Education (R&E) institutions highlights a pressing need for enhanced protection. Addressing this, a consortium of European National Research and Education Network (NREN) organizations has developed a unified IS framework. This paper aims to introduce the Security Baseline for NRENs and a security maturity model tailored for R&E entities, derived from established security best practices to meet the specific needs of NRENs, universities, and various research institutions. The models currently in existence do not possess a system to smoothly correlate varying requirement tiers with distinct user groups or scenarios, baseline standards, and existing legislative actions. This segmentation poses a significant hurdle to the community’s capacity to guarantee consistency, congruency, and thorough compliance with a cohesive array of security standards and regulations. By employing taxonomical engineering principles, a mapping of baseline requirements to other security frameworks and regulations has been established. This reveals a correlation across most regulations impacting R&E institutions and uncovers an overlap in the high-level requirements, which is beneficial for the implementation of multiple standards. Consequently, organizations can systematically compare diverse security requirements, pinpoint gaps in their strategy, and formulate a roadmap to bolster their security initiatives. Full article

This study utilizes the axodes invariants to derive novel hyperbolic proofs of the Euler–Savary and Disteli formulae. The inflection circle, which is widely recognized, is situated on the hyperbolic dual unit sphere, in accordance with the principles of the kinematic theory of spherical locomotions. Subsequently, a timelike line congruence is defined and its spatial equivalence is thoroughly studied. The formulated assertions degenerate into a quadratic form, which facilitates a comprehensive understanding of the geometric features of the inflection line congruence. Full article

In this study, we establish a novel Lorentzian interpretation of the Euler–Savary ($\mathcal{E}-\mathcal{S}$) and Disteli ($\mathcal{D}is$) formulae. Subsequently, we proceed to establish a theoretical structure for a Lorentzian torsion line congruence which is the spatial symmetry of the Lorentzian circling-point dual curve, in accordance with the principles of the kinematic theory of spherical locomotions. Further, a timelike ($\mathcal{T}like$) torsion line congruence is defined and its spatial equivalence is examined. The findings contribute to an enhanced comprehension of the interplay between axodes and Lorentzian spatial movements, which has possible significance in various disciplines, such as the fields of robotics and mechanical engineering. Full article

The Community of a Shared Future for Mankind seeks to mitigate the world’s current challenges, and to create a more sustainable future through better global governance. Some of the philosophical arguments of the Community of a Shared Future for Mankind, and its foundations, which this article traces, are grounded in the philosophical teachings of Confucius and Mencius. The five pillars of Confucianism are benevolence (Ren), righteousness (Yi), propriety (Li), wisdom (Zhi) and fidelity (Xin). The five pillars have their equivalents in the philosophy of the Community of a Shared Future for Mankind: benevolence has its equivalents in multilateral and bilateral agreements; righteousness shows justice; propriety’s equivalents are international standards and regulations; wisdom is the problem-solving dialogues; and trustworthiness is equated to international organizations that safeguard global integrity. The Confucian principle of harmony is congruent with the objective of the Community of a Shared Future for Mankind, of creating a world of harmony, peace and cooperation. The Golden Rule has been observed in the Community of a Shared Future for Mankind, through its insistence on reciprocal bilateral and multilateral cooperation. Mencius’ philosophical contribution to the Community of a Shared Future for Mankind is in his theory of human nature, where humaneness is seen as developmental—as would be the community built by the Community of a Shared Future for Mankind. Mencius’ principle of governance is congruent with the Community of a Shared Future for Mankind’s insistence on responsible governance. These congruences and similarities, between the Community of a Shared Future for Mankind and the philosophies of Confucius and Mencius, point to the foundations for the Community of a Shared Future for Mankind. Full article

We review, as well as provide some new results regarding the study of the structure of spacetime and the singularity in the interior of the Schwarzschild black hole in both loop quantum gravity and generalized uncertainty principle approaches, using congruences and their associated expansion scalar and the Raychaudhuri equation. We reaffirm previous results that in loop quantum gravity, in all three major schemes of polymer quantization, the expansion scalar, Raychaudhuri equation and the Kretschmann scalar remain finite everywhere in the interior. In the context of the eneralized uncertainty principle, we show that only two of the four models we study lead to similar results. These two models have the property that their algebra is modified by configuration variables rather than the momenta. Full article

In this study, the life cycle assessment (LCA) principle was performed to estimate the environmental impact of three dairy farms that operate using different farming systems, namely, conventional (CON), organic (ORG), and high-quality (HQ) modes. In Italy, the typical style of high-quality (HQ) farming is commonly included in the conventional system but is more strictly regulated by the Decree of the Italian Ministry of Health N° 185/1991. Although the farms are not fully representative of each conduct, they showed intrinsic peculiarities, e.g., the cow-culling rate of each system. This rate requires a quantification as it may be related to loss of income. Allocation criteria were applied to attribute the quantities of pollutants to the co-products: wheat, involved in the congruence and number of cows culled, the latter being undesirable and therefore necessary to quantify. Analysis of variance (ANOVA) highlighted that the no-dairy products significantly mitigated (p < 0.05) some of the impacts’ categories. The allocation of culled cows decreased the impacts of the CON and particularly those of the ORG farms when the mass mode was adopted. HQ showed values similar to the results without allocation. Overall, the objective of identifying a “marker” of undesirable products, estimated by the culling rate, was partially achieved. Full article