Projectivity Research Articles

Pseudo-circular evolutes and involutes of lightcone framed curves in the Lorentz–Minkowski 3-space

In this paper, we first define the pseudo-circular evolute of a lightcone framed curve in the Lorentz–Minkowski 3-space, and show that the pseudo-circular evolute of a lightcone framed curve can be seen as a generalization of the circular evolute of a framed curve without type changing. We also define an involute of a lightcone framed curve, and study the duality relations between involutes and pseudo-circular evolutes. Moreover, we study the pseudo-circular evolutes and involutes with respect to a lightcone circle frame, and investigate the relationship with respect to a projection map. Meanwhile, examples are given for explaining the objects we investigated, which also show a certain physical significance of our investigation.

EKSPLORASI FAKTOR PENGHAMBAT DALAM MENGADOPSI GREEN MARKETING PRACTICES PADA IKM RENDANG DI KOTA PADANG

The purpose of this study is to explore the inhibiting factors in the implementation of green marketing practices in rendang SMEs in Padang City. This study uses a qualitative method that aims to obtain a clear picture of a problem, which will be focused on collecting data or information on the object. The results of the research findings and the results of the NVivo 12 plus Project Map analysis, various obstacles felt by SMEs actors to implement green marketing practices, namely government regulations, resources, organizational management, costs and awareness. This is due to the lack of involvement in long-term environmental concerns when producing products. In general, SMEs in rendang businesses focus more on the taste of food, product durability and good quality to reach consumers. In this case, there is no involvement in environmental aspects to minimize environmental impacts ranging from products, production sites, and price to product promotions.

A Multi-aperture Coaxial Projector Balancing Shadow Suppression and Deblurring.

This paper proposes a projection system that optically removes the cast shadow in projection mapping. Specifically, we realize the large-aperture (LA) projection using a large-format Fresnel lens to suppress cast shadows by condensing the projection light from a wide viewing angle. However, the resolution and contrast of the projected results are significantly degraded by defocus blur, veiling glare, and stray light caused by the aberration of an LA Fresnel lens. To solve the technical problems, we employ two different approaches: optical and digital image processing methods. First, we introduce a residual projector with a typical aperture lens on the same optical axis as the LA projector, projecting the residual (i.e., high-frequency) components attenuated in the LA projection. These projectors play different roles in shadow suppression and blur compensation, both achieved by projecting simultaneously. Secondly, we optimize the pair of projection images that can balance the shadow suppression and deblurring performance of our projection system. We implemented a proof-of-concept prototype and validated the above-mentioned techniques through projection experiments and a user study.

Research on Spatial Data Aggregation Based on Aggregation Degree Function

Abstract. Restricted by the development level of hardware and software technology, computers cannot load massive data at one time, coupled with the fact that the three-dimensional linear scene is characterized by complicated lines, irregular shapes of features and a large number of features. Therefore, it is necessary to seek a three-dimensional spatial data organization and scheduling method applicable to the railroad scene to realize the display and interaction of the scene. In this paper, we propose a data organization method based on the aggregation degree function for the 3D model of features. The feature model is projected to generate an orthographic projection map, the cluster division rule is designed to divide the subsets, the feature model after clustering is aggregated using the feature model aggregation rule, and the aggregated model is displayed according to the aggregation degree function and viewpoint factor. The results of the test applied to the railroad scene show that the 3D spatial data aggregation based on the aggregation degree function can improve the loading speed of the 3D scene, and can effectively support the application of interactive visualization of the railroad 3D scene.

Neuronal wiring diagram of an adult brain

Connections between neurons can be mapped by acquiring and analysing electron microscopic brain images. In recent years, this approach has been applied to chunks of brains to reconstruct local connectivity maps that are highly informative1–6, but nevertheless inadequate for understanding brain function more globally. Here we present a neuronal wiring diagram of a whole brain containing 5 × 107 chemical synapses7 between 139,255 neurons reconstructed from an adult female Drosophila melanogaster8,9. The resource also incorporates annotations of cell classes and types, nerves, hemilineages and predictions of neurotransmitter identities10–12. Data products are available for download, programmatic access and interactive browsing and have been made interoperable with other fly data resources. We derive a projectome—a map of projections between regions—from the connectome and report on tracing of synaptic pathways and the analysis of information flow from inputs (sensory and ascending neurons) to outputs (motor, endocrine and descending neurons) across both hemispheres and between the central brain and the optic lobes. Tracing from a subset of photoreceptors to descending motor pathways illustrates how structure can uncover putative circuit mechanisms underlying sensorimotor behaviours. The technologies and open ecosystem reported here set the stage for future large-scale connectome projects in other species.

Does Family Matters? Exploring the Enablers of Sustainable Indian Women Micro Entrepreneurship

The present article attempts to encapsulate the enablers of a women-led microentrepreneurship sustainable model. To fulfill this purpose, a widely used Indian microcredit women entrepreneurship financial assistance model, namely Self-Help Group (SHG)-linked micro women entrepreneurs (MWEs), who accessed a second loan from the bank individually for their business expansion, were interviewed. Responses of such 30 MWEs were content analyzed using NVIVO 12. The codes, themes, and project maps were generated to identify the enablers resulting in a microentrepreneurial sustainable development framework. The results suggest that business know-how competencies (customer excellence, networking) and personal competencies (confidence, optimism, perseverance) were identified as prominent enablers, with family support as the most critical factor. Findings further suggested that MWEs’ sustainable success depends on capabilities of balancing the support provided from family to business and vice versa (family-to-business support), as well as leveraging the skills and experiences learned in the family for managing the business or vice versa (family-to-business enrichment). Positive spillover of the family-to-business interface was key to their business growth, unlike previous studies where the family was considered to be the biggest challenge for women entrepreneurship. A change in societal mindset and a shift toward gender parity was observed.

예비 교사들의 기후변화 교육 사례 연구 -EARTH HOUR 활동을 중심으로-

The purpose of study is to introduce a case in which education for climate action, the 13th goal of sustainable development, is established in universities through climate change classes opened in the Earth Science education department of the college of education. Climate change education, including earth hour activities, was conducted in the Inquiry of climate change education subject in the first-year major elective area. Fifty-three pre-service earth science teachers participated in a climate change class. In this study, lectures on 12 topics were conducted, and group activities such as Earth Calendar, Earth Hour, Joobging Project, and Campus Environmental Maps were conducted in parallel. Pre-service teachers recognize climate change in connection with our daily lives, but focused on artificial factors rather than natural factors. They responded positively to the climate change class and evaluated the items of interest, excitement, and satisfaction highly. In addition, the applicability of earth hour activities was confirmed as an example of climate change education programs. It provided pre-service teachers with the experience of participating in international environmental campaigns as global citizens. Climate change curriculum is needed not only in high schools but also in universities, especially in the college of education. Research on developing and implementing climate change education programs centered on universities must be sustainable.

Quality Of Care In Parkinson's Disease: Lessons From A National Audit

Abstract Background It is recommended that people with Parkinson’s disease (PD) are treated within specialised services. As part of a research project mapping and evaluating PD services nationally, the first audit of PD services in the Republic of Ireland was conducted. Methods A de novo audit tool was developed by an expert group, based on a rigorous review of existing international standards, guidelines and audit tools, with extensive stakeholder input (including people with PD). All 14 specialist PD services in the Republic of Ireland were eligible; up to 30 case-notes were randomly selected per service in 2022/2023, looking at the most recent 2 visits (new patient) or 3 visits (established patient). Results In total, 261 case-notes were included, from 11 specialist PD services, led by a geriatrician (n=5) or neurologist (n=6). Overall, 16.8% of patients were seen less often than annually. Motor and mobility assessments were well performed (>75%); but cognition (70%) and pain assessments (64%), saliva management (50%), and bone density determination (18%) were inadequate. Access to PD nurses (65%), physiotherapy (69%), speech and language therapy (53%), and occupational therapy (50%) was inadequate; PD nurses were mainly in Dublin. However, specialist nurse and MDT access was better than reported by people attending generic services for PD care (1). Providing written information following diagnosis (24%), and communication with the carer were infrequently documented (financial support discussion: 12%; availability of support locally: 26%). Gerontology-led services more often screened for malnutrition (99% v 78%) or orthostatic hypotension (94% v 52%). Conclusion PD care relating to assessment, multidisciplinary involvement, and information sharing was sub-optimal in some areas, with the caveat that documentation may not reflect actual practice. Reference 1. O’Shea E, et al. Experiences of Health Service Access and Use for People Living with Parkinson’s Disease in Ireland: A National Survey. Health & Social Care in the Community. 2023 Aug 9;2023.

Field-Configuring Places: Unpacking the role of place in field evolution

The paper theorises how a place can influence the emergence and evolution of an exchange field. Specifically, we examine the Society for Arts and Technology building in Montreal, focusing on its geographical location, material form, and meanings as their adaptations over time. Our findings identify three types of influence that the SAT building has on the field of projection mapping: supporting the community, fostering interorganisational relationships, and catalysing innovation. These influences manifest in distinct ways depending on the field’s evolution phase. We contribute to the literature on field configuration by developing the concept of the field-configuring place and distinguishing it from the established concept of the field-configuring event. Additionally, we extend the institutional dynamics literature by showing how a place can support the configuration of a field from its emergence, based on its characteristics that can be adapted while providing stability. This study thus underlines the cross-fertilisation between the literature on field configuration and that on places.

Genuine entanglement detection via projection map in multipartite systems

We present a formalism to detect genuine multipartite entanglement by considering projection map which is a positive but not completely positive map. Projection map has been motivated by the no-pancake theorem which repudiates the existence of a quantum operation that maps the Bloch sphere onto a disk along its equator. The not-complete positivity feature of projection map is explored to investigate genuine multipartite entanglement in arbitrary N-qubit quantum systems. Our proposed framework can detect some important classes of genuinely entangled states in tripartite and quadripartite scenarios. We provide illustrative example to show the efficacy of our formalism to detect a class of tripartite PPT bound entangled states. Finally, we construct a suitable witness operator based on projection map to certify genuine tripartite entanglement, which is likely to be feasible experimentally.

Stakeholder Mapping and Analysis of Off-Site Construction Projects: Utilizing a Power–Interest Matrix and the Fuzzy Logic Theory

Stakeholder Mapping and Analysis of Off-Site Construction Projects: Utilizing a Power–Interest Matrix and the Fuzzy Logic Theory

Molecular programs guiding arealization of descending cortical pathways.

Layer 5 extratelencephalic (ET) neurons are present across neocortical areas and send axons to multiple subcortical targets1-6. Two cardinal subtypes exist7,8: (1) Slco2a1-expressing neurons (ETdist), which predominate in the motor cortex and project distally to the pons, medulla and spinal cord; and (2) Nprs1- or Hpgd-expressing neurons (ETprox), which predominate in the visual cortex and project more proximally to the pons and thalamus. An understanding of how area-specific ETdist and ETprox emerge during development is important because they are critical for fine motor skills and are susceptible to spinal cord injury and amyotrophic lateral sclerosis9-12. Here, using cross-areal mapping of axonal projections in the mouse neocortex, we identify the subtype-specific developmental dynamics of ET neurons. Whereas subsets of ETprox emerge by pruning of ETdist axons, others emerge de novo. We outline corresponding subtype-specific developmental transcriptional programs using single-nucleus sequencing. Leveraging these findings, we use postnatal in vivo knockdown of subtype-specific transcription factors to reprogram ET neuron connectivity towards more proximal targets. Together, these results show the functional transcriptional programs driving ET neuron diversity and uncover cell subtype-specific gene regulatory networks that can be manipulated to direct target specificity in motor corticofugal pathways.

Exploring the impact of makerspace-based learning materials on students’ computational thinking skills: Using machine learning to address challenges in smart coffee agroforestry

This research aimed to develop teaching materials to improve students' computational thinking skills in solving smart coffee agroforestry problems through machine learning, using the RBL-STEM makerspace. Computational thinking skill goes beyond coding and programming and is related to the students' higher-order thinking skills. This research uses the ADDIE development model in developing the learning materials. The learning material products consist of assessment instruments, students' worksheets, and lesson plans. The research employed questionnaires, validation sheets (including content, construct, programming, and language), and observation sheets to collect data regarding the instruments' effectiveness, practicality, and validity. We evaluated the effectiveness of the teaching materials in a single classroom using a paired-test, examining the significant difference between the pre-test and post-test scores. The research subjects are 42 students of the Science Education Department at the University of Jember for the academic year 2023-2024. The average overall score, including content, construct, programming, and language, is 92.97%. The results show that the learning materials satisfy in all aspects. We did in-depth interviews with some selected students at low, medium, and high levels of computational thinking skills and compared the interview results using NVIVO software to making project maps. Furthermore, the score of paired t-test shows α-value = 0.003< 0.05. We concluded that RBL-STEM makerspace learning materials significantly contribute to the development of students’ computational thinking skills. It implies that the learning materials developed in this research are ready to be used in the learning activities to foster students' computational thinking skills.

Modular linear differential operators and generalized Rankin-Cohen brackets

The aim of this paper is to give expressions for modular linear differential operators (MLDOs) of any order. In particular, we show that they can all be described in terms of Rankin-Cohen brackets and a modified Rankin-Cohen bracket found by Kaneko and Koike. We also give more uniform descriptions of MLDOs in terms of canonically defined higher Serre derivatives and an extension of Rankin-Cohen brackets, as well as in terms of quasimodular forms and almost holomorphic modular forms. The last of these descriptions involves the holomorphic projection map. The paper also includes some general results on the theory of quasimodular forms on both cocompact and non-cocompact subgroups of S L 2 ( R ) SL_2(\mathbb {R}) , as well as a slight sharpening of a theorem of Martin and Royer on Rankin-Cohen brackets of quasimodular forms.

Circular Economy: Research in the Maritime Domain

The maritime domain is a very broad domain encompassing ship design, construction, transportation, export–import, port management, energy, ocean, and waterways management. The assumption that the marine industry is less flexible for a transition from linear economy to circular economy (CE) is being challenged. A ship is a factory/city in motion, and therefore, CE principles may be applied to a ship. CE principles can be applied to ports, energy, and waterways management. Successful implementation of CE requires a comprehensive mapping of business models, projects, products, and services; identification of all stakeholders; and using biomimicry in manufacturing. CE can help in the regeneration and restoration of natural capital. The circular business models can help in increasing revenue, reducing costs, and saving the environment. CE can be extended to include reimagining, realigning, reworking, and reaching out to different players in the maritime domain. The marine industry faces the challenges of decarbonization and end-of-life vessel management.

Cutting-edge Applications and Challenges of Digital Media Art in Landscape Design

In today's rapid development of science and technology, digital media art is gradually penetrating into all aspects of landscape design. The combination of the two not only provides unprecedented opportunities for landscape design innovation, but also poses new challenges to it. With the booming development of digital media art, digital media art has gone from VR to AR, from projection mapping to light show to interactive installation art, which brings more possibilities for landscape design and enriches people s vision and senses, so it is necessary to study the cutting-edge applications and challenges of digital media art in landscape design.

[Translated article] Bibliometric Study of the Advances Made in Clinical Dermatological Research in Spain from 2015 through 2021: Update of the MaIND Project and Interactive Online Map

IntroductionA clinical dermatological research was conducted in Spain from 2005 through 2014 as part of the MaIND project with the provinces or centers with the highest number of published articles. However, a low level of evidence in scientific production was confirmed as the overall result. The aim of this study is to update the Spanish clinical dermatological research in bibliometric terms from 2015 through 2021 with comparisons between both periods of time. Material and methodsWe conducted a bibliometric study to replicate the methodology used in the article to be updated. We included articles whose corresponding authors’ affiliation was a Spanish dermatological center, which met the criteria for clinical research in dermatology, including a level of evidence ≤4. ResultsA total of 1,674 out of the 10,199 articles met the inclusion criteria. An interactive map representing quantitative and qualitative indicators calculated for the 2005-2021 is presented here. In the study period, we found an increasing trend both in the number of published articles (P<.002) and in the mean number of citation-years per article (P<.01). A total of 22 of the articles had a level of evidence >4, with a positive trend towards more articles having a higher level of evidence (P<.03). ACTAS DERMOSIFILOGRÁFICAS still maintains its position as the journal with the highest number of articles received (18%, a total of 302 articles). ConclusionsThe results of this study show that, in Spain, the scientific production of dermatology represents an upward trend in quantity, impact, and level of evidence.

Vessel-promoted OCT to OCTA image translation by heuristic contextual constraints

Optical Coherence Tomography Angiography (OCTA) is a crucial tool in the clinical screening of retinal diseases, allowing for accurate 3D imaging of blood vessels through non-invasive scanning. However, the hardware-based approach for acquiring OCTA images presents challenges due to the need for specialized sensors and expensive devices. In this paper, we introduce a novel method called TransPro, which can translate the readily available 3D Optical Coherence Tomography (OCT) images into 3D OCTA images without requiring any additional hardware modifications. Our TransPro method is primarily driven by two novel ideas that have been overlooked by prior work. The first idea is derived from a critical observation that the OCTA projection map is generated by averaging pixel values from its corresponding B-scans along the Z-axis. Hence, we introduce a hybrid architecture incorporating a 3D adversarial generative network and a novel Heuristic Contextual Guidance (HCG) module, which effectively maintains the consistency of the generated OCTA images between 3D volumes and projection maps. The second idea is to improve the vessel quality in the translated OCTA projection maps. As a result, we propose a novel Vessel Promoted Guidance (VPG) module to enhance the attention of network on retinal vessels. Experimental results on two datasets demonstrate that our TransPro outperforms state-of-the-art approaches, with relative improvements around 11.4% in MAE, 2.7% in PSNR, 2% in SSIM, 40% in VDE, and 9.1% in VDC compared to the baseline method. The code is available at: https://github.com/ustlsh/TransPro.

Pulsed-field ablation for atrial fibrillation without the use of fluoroscopy.

Pulsed-field ablation (PFA) and fluoroless ablation (FA) are emerging techniques in contemporary in electrophysiology. With widespread use of 3D electroanatomic mapping systems and advanced intracardiac echo (ICE) imaging, fluoroless ablation has become more widely adopted. However, with the importance of tissue contact for lesion durability, initial PFA has been used with fluoroscopic guidance, but both ICE and electroanatomic mapping make fluoroless PFA feasible. The objective of this study is to demonstrate that PFA can be done safely and effectively without fluoroscopy. At a single center, consecutive patients undergoing ablation with a pentaspline PFA catheter using a fluoroless approach are described. The standard 3D anatomic map settings were adjusted with changes in interior and exterior projection, respiratory compensation, and interpolation. In addition, projection map lesions were used to confirm adequate circumferential ablation lesions. ICE was used extensively for wire guidance and evaluation of contact with tissue. Beginning on March 15, 2024, 50 consecutive subjects (19 female/31 male) aged 68.0 (± 13.7) underwent PFA ablation. The average CHA2DS2-VA2Sc score was 3.0 (± 1.9). The average LVEF was 57.3% (± 10.0) and the average LA size was 3.9cm (± 1.2). Projection lesions were placed with every application of PFA. An average of 41.7 (± 8.5) PFA applications were placed. In 100% (50/50) of subjects, acute isolation of the pulmonary veins was achieved. Eighteen subjects also underwent concomitant posterior wall isolation and in 100% of these subjects, posterior isolation was achieved. There were zero complications in this cohort. In 50/50 subjects (100%), fluoroscopy was not used. In comparison to the control cohort, the LA dwell time of the ablation catheter was similar (p = 0.34). In comparison to the traditional PFA with fluoroscopy, this proof-of-concept study shows fluoroless PFA ablation can be performed safely and with similar acute success rates as with use of fluoroscopy.

Aerospace Software and AI Sustainability: A Software Developer Capabilities Approach

Artificial intelligence (AI) mediated approaches towards generating or refining digital software are influencing the aerospace industry and its emerging, developing, and innovative operational systems. Such firm and/or industry inclusions can enhance entrepreneurial effectiveness and ongoing sustainability. A nationwide Qualtrics survey delivers semi-structured interview summations of registered software-house developers (‘experts) showing nodal thematic data can NVivo project map that stagewise models towards a suite of sustainability outcomes. Respondent software developers consider software house digital and AI new capacities, plus their knowledge creation frame across two capabilities areas that relationally link into an entrepreneurial capabilities suite and a strategic AI product trending capabilities suite. This system likely coalesces, as a digital AI-supported collective, towards enhancements into digital and AI globally sustainable outcomes. The aerospace industry. and their engaged software houses can use this operational approach when strategically planning future ongoing software and AI development inclusions across their globally located corporate aerospace entities, by considering how best to adjust ongoing digital and AI competencies and entrepreneurial capabilities towards delivering enhanced sustainable outcomes. This study suggests a stagewise and measurement model approach can likely be derived to introduce chosen software and AI levers, but these should focus on delivering ongoing digital and sustainable aerospace industry outcomes.