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Introduction: Visiting a patient's living environment is important for occupational therapists, albeit costly and time consuming. MapIt is a mobile app producing a 3D representation of a home with the possibility of taking measurements. The purpose of this study was to explore the utility of a 3D representation of a patient's home for the clinical practice of occupational therapists. Methods: Case study in which the unit of analysis was the utility of MapIt as defined by ISO 9241‐11:2018 and as perceived by occupational therapists in four different occupational therapy clinical settings (Canada). Onsite observations with 10 occupational therapists (and their patients) were triangulated with data from interviews, diaries, and logbooks. Inductive thematic condensation led to emerging conclusions for each clinical setting, fuelling the next case data collection and analysis. Inter‐case analysis was corroborated by additional occupational therapists, through crowdsourcing and expert review. Results: Occupational therapists' clinical reasoning was supported by the MapIt app, enhancing and streamlining their work and inducing adjustments to treatment plans. Occupational therapists saw and measured the patient's environment remotely, to better match person‐environment‐occupation and promote occupational engagement. MapIt's 3D representations were judged useful to communicate between occupational therapists and stakeholders, to educate, allow continuity, optimise resources, minimise the patient's time on a waitlist for homecare, and save time for everyone. Discussion: MapIt allowed occupational therapists who performed home visits to bring a little of the patients' home to their office, whereas occupational therapists without access to the home could see it and take measurements. MapIt's utility was confirmed for practice in clinical settings and for better continuity of care between settings. Conclusion: MapIt makes it possible for occupational therapists to 'walk around' the patient's home remotely, but the possibility of measuring environmental elements is a 3D model's true added value over currently used photos or short videos. PLAIN LANGUAGE SUMMARY: This study explored how a mobile app called MapIt could help occupational therapists in their work. Visiting a patient's home takes a lot of time. This app creates a 3D model of a room, making it easier for occupational therapists to see and measure the home environment remotely. The research was conducted with 10 occupational therapists working in four different contexts in Quebec, Canada. Researchers studied how useful MapIt was to the occupational therapists. The latter each used MapIt with their patients, kept track of their experience in a diary and were interviewed throughout the duration of the study. The results showed that MapIt helped occupational therapists in understanding their patients' living environment and planning treatments accordingly. Occupational therapists who could not visit the homes in person found it useful. The 3D models created by MapIt were also judged helpful for communicating with other people involved in the patient's care, like family members or other health‐care professionals. MapIt could make occupational therapy more efficient and help patients get the care they need faster. Overall, the researchers concluded that MapIt is a useful tool for occupational therapists. It allows them to virtually visit patients' homes and take measurements, which is important when evaluating how to adapt a home to a patient's needs. [ABSTRACT FROM AUTHOR]

Oxygen packing factor (OPF) and atomic-level structure characteristics of the germania system at high temperature and pressure were investigated based on molecular dynamics (MD) simulation. Data analytic techniques, including Monte Carlo method, machine learning and data mining, were used to gain insights from the simulation data. We focus on elucidating the correlation between structure and OPF under high pressure. The research results have established the relationship of the network structure, polyamorphism, liquid–liquid phase transformations and microphase separation with OPF. The research findings revealed promising possibilities in developing novel materials and their applications. [ABSTRACT FROM AUTHOR]

Root architecture systems (RAS) reflect the spatial structure of roots in soil. To clarify the structure and distribution of rice roots and investigate the coupling between roots and soil, wetland rice was selected as the experimental object, and a three-dimensional (3D) growth model of rice root environment-roots (ERoots) based on the parameter Lindenmayer system (L-system) was proposed. ERoots combines a root morphological structure model with a growth model and defines L-system grammar iteration rules with the unit time and unit step length as parameters. At the same time, the basic growth parameters of rice roots were obtained via destructive detection, and 3D growth visualisation of roots was realised via MATLAB. In the soil coupling process, a soil nutrient simulation map was constructed based on the spatial soil characteristics per unit volume, and an adjustment strategy for roots reaching the growth boundary was designed. The flexibility of the model coupled with soil was reflected in the tropisms of root growth, growth rate and root branching strategy. Finally, combined with soil spatial characteristic simulation, geometric growth boundary and 3D root growth model, the ability of 3D growth visualisation of rice roots was verified under three soil conditions: (1) unconfined root growth, (2) confined spatial root growth, and (3) root growth with tropisms. The results indicated that the ERoots root model basically realised coupling with soil and achieved a satisfactory simulation effect in regard to the rice morphological structure. This study provides a reference for 3D growth modelling and visualisation of other crop roots. • A 3D rice root growth model, ERoots, was proposed based on parameter L-System. • Root-soil integration was realised by ERoots model. • 3D visualisation ability of rice roots under three soil conditions was verified. • Three indicators reflected the flexibility in coupling with soil. [ABSTRACT FROM AUTHOR]

3D waterlogging visualisation is an immersive method to understand how water accumulates in specific areas. Since urban waterlogging involves complex subsystems above and below the ground, augmented reality (AR) visualisation is especially effective for risk perception. In this paper, a 3D visualisation method for urban road waterlogging based on mobile augmented reality is proposed. The waterlogging situation is simulated by integrating open-source Storm Water Management Model (SWMM) and Weighted Cellular Automata 2D Inundation Model (WCA2D). The 3D pipe network and road inundation volume objects are constructed and organised as the basic geospatial objects for AR visualisation. Then, the simulated flow results are mapped and fused with 3D objects, achieving enhanced waterlogging visualisation based on mobile augmented reality. The method is applied to a case study in Wuhan, China. The results demonstrate that underground pipe drainage and surface runoff processes can be presented intuitively from the perspective of mobile AR. The scene rendering organised by the multilevel index is smooth, with an FPS of more than 30 frames. This research provides methodological and practical references for the general public to increase waterlogging awareness and make emergency decisions.

Background: Digital 3D visualisation tools have been increasingly used to supplement anatomy teaching with positive results reported in knowledge acquisition, 3D spatial understanding, and active student engagement. Despite their well-documented benefits, evidence of their learning effect on head and neck anatomy is limited. Methods: This cross-over design study aimed to compare using Complete Anatomy (CA) and conventional methods (prosections and plastic models) to learn laryngeal anatomy. Fifty-four first-year dental and dental hygiene students were randomly assigned to a CA and a conventional group. Pre- and post-tests were used to compare groups' knowledge gains, and a feedback questionnaire was used to compare students' perceptions towards CA. Results: Both groups improved significantly in the post-test compared to the pre-test (Cohen's d ≥ 0.8). The conventional group significantly outperformed their counterparts in total (Cohen's d = 0.57) and written questions (Cohen's d = 0.9). However, both groups performed equally in the identification questions. Question-based analysis shows that the CA group performed significantly better in the identification questions than in the written questions (Cohen's d = 0.51). Nearly half the students perceived the CA application as easy to use, and the same proportion believed CA assisted their learning of laryngeal anatomy. Conclusion: This study provides further evidence of the effectiveness of CA in knowledge gain and anatomical recognition and supports its use as supplementary to anatomy education in general and head and neck anatomy in particular.

Abstract Dual‐energy X‐ray computed tomography consists of imaging objects using two incident X‐ray beams of different energy to distinguish the different compounds within a sample based on their density (electron density, ρe) and elemental composition (effective atomic number, Zeff). The stoichiometric calibration for dual‐energy X‐ray computed tomography was already successfully implemented to identify single and homogeneous minerals easily and non‐destructively. It is here applied for the first time to a more complex and heterogeneous sample, a varved sediment core with three distinct facies. The output of dual‐energy X‐ray computed tomography was compared against elemental geochemistry obtained at the same resolution using a micro‐XRF core scanner. The three individual facies can be successfully differentiated using dual‐energy X‐ray computed tomography because their range of ρe and Zeff values allow their discrimination. Correlations with elemental geochemistry are also discussed but are less conclusive, probably because of variations in grain size and porosity, and because these high resolution analyses were not performed at the exact same location. The paper not only eventually discusses the limitations when using dual‐energy X‐ray computed tomography on sediments but also demonstrates its potential to quantitatively study sediment cores in a non‐destructive way.

Dual‐energy X‐ray computed tomography consists of imaging objects using two incident X‐ray beams of different energy to distinguish the different compounds within a sample based on their density (electron density, ρe) and elemental composition (effective atomic number, Zeff). The stoichiometric calibration for dual‐energy X‐ray computed tomography was already successfully implemented to identify single and homogeneous minerals easily and non‐destructively. It is here applied for the first time to a more complex and heterogeneous sample, a varved sediment core with three distinct facies. The output of dual‐energy X‐ray computed tomography was compared against elemental geochemistry obtained at the same resolution using a micro‐XRF core scanner. The three individual facies can be successfully differentiated using dual‐energy X‐ray computed tomography because their range of ρe and Zeff values allow their discrimination. Correlations with elemental geochemistry are also discussed but are less conclusive, probably because of variations in grain size and porosity, and because these high resolution analyses were not performed at the exact same location. The paper not only eventually discusses the limitations when using dual‐energy X‐ray computed tomography on sediments but also demonstrates its potential to quantitatively study sediment cores in a non‐destructive way. [ABSTRACT FROM AUTHOR]

This paper investigates the microstructure and damage evolution of plain weave ceramic matrix composites under in-plane shear using the in-situ X-ray computed tomography approach. The actual microstructure and damage evolution of material under several successive loading levels have been revealed precisely. A deep-learning-based image segmentation method has been employed to accurately identify material damages, including matrix cracks, delamination, fibre pull-outs and interface debonding. Besides, three-dimensional visual characterisation and quantitative analysis of damage have been carried out to gain a better understanding on the failure mechanisms. For longitudinal tows under shear, the cracks propagate along the loading direction and cause the splitting and sliding failure of tow; For transverse tows under shear, they undergo coupling effects of shear and tension, which results in kink band damage with fibre bridging mechanism. Finally, the connection of longitudinal tow splitting and transverse tow kinking leads to the catastrophic fracture of CMCs under in-plane shear. [ABSTRACT FROM AUTHOR]

This is an in-depth study of a mimicked slotted point, carved from a cervid longbone, found in the lower reaches of the Pärnu River. The 3D digital model, created during this study, provides an interactive and innovative tool for studying the object in detail. The AMS dating places the artefact at the very beginning of human habitation in the present-day territory of Estonia. SEM-EDS, ATR-FT-IR and GC-FID/MS analyses demonstrate that this unique object was probably originally partially covered with a mixture of red ochre and some coniferous resin, possibly as hafting adhesive. As this is a detailed replica of a slotted point, it also demonstrates how people themselves saw slotted points in the Early Mesolithic, also raising the question of the purpose of this replica â was it an ordinary arrowhead or rather a ritual object?

Three‐dimensional (3D) representations of anatomical specimens are increasingly used as learning resources. Photogrammetry is a well‐established technique that can be used to generate 3D models and has only been recently applied to produce visualisations of cadaveric specimens. This study has developed a semi‐standardised photogrammetry workflow to produce photorealistic models of human specimens. Eight specimens, each with unique anatomical characteristics, were successfully digitised into interactive 3D models using the described workflow and the strengths and limitations of the technique are described. Various tissue types were reconstructed with apparent preservation of geometry and texture which visually resembled the original specimen. Using this workflow, an institution could digitise their existing cadaveric resources, facilitating the delivery of novel educational experiences. [ABSTRACT FROM AUTHOR]

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

Due to the COVID-19 pandemic the virus responsible, SARS-CoV-2, became a source of intense interest for non-expert audiences. The viral spike protein gained particular public interest as the main target for protective immune responses, including those elicited by vaccines. The rapid evolution of SARS-CoV-2 resulted in variations in the spike that enhanced transmissibility or weakened vaccine protection. This created new variants of concern (VOCs). The emergence of VOCs was studied using viral sequence data which was shared through portals such as the online Mutation Explorer of the COVID-19 Genomics UK consortium (COG-UK/ME). This was designed for an expert audience, but the information it contained could be of general interest if suitably communicated. Visualisations, interactivity and animation can improve engagement and understanding of molecular biology topics, and so we developed a graphical educational resource, the SARS-CoV-2 Spike Protein Mutation Explorer (SSPME), which used interactive 3D molecular models and animations to explain the molecular biology underpinning VOCs. User testing showed that the SSPME had better usability and improved participant knowledge confidence and knowledge acquisition compared to COG-UK/ME. This demonstrates how interactive visualisations can be used for effective molecular biology communication, as well as improving the public understanding of SARS-CoV-2 VOCs. [ABSTRACT FROM AUTHOR]

This paper highlights the possibility of using terrestrial-based GPR to provide third dimension (depth) information to facilitate a landslide search and recovery (SAR) mission in Malaysia. The study was based on an actual use case during the 2022 landslide tragedy that occurred at the Father's Organic Farm, Batang Kali. Two sets of MALA RAMAC X3M with shielded antennas (250MHz and 500 MHz) were used to survey a 1m x 1m profile interval at a 30m x 20m and 8m x 6m grid areas in Sector B on the 18th and 19th December 2022. Grid line profiles 2211-A, 2212-A, and 2213-A detected by the 250MHz antenna showed suspicious reflection patterns. The pattern's amplitude contrast in relation to the soil background and the consistency with the average Malaysian adult's stature was considered fit as the most likely location of landslide victims. The locations of the reflection were viewed with greater accuracy and clarity utilising time slice y-cut on 3D processing in the Reflex3DScan ReflexW module. On 21st December 2022, the SAR team recovered a victim and his two dogs near the suspected GPR line profiles at sector B. The suspected GPR signal reflections corroborated with the proximity where the victim was found according to the special SAR victim location map published by SAR authorities. Since access to ground zero post-excavation was restricted, on-site validation of the suspected profiles was not possible. Nonetheless, because hyperbolas were detectable at a lower frequency with a maximum depth of around 8m, this paper concludes that using terrestrial-based GPR as a SAR alternative for buried landslide victims is still feasible. The challenge would be having a skilled operator to detect a hyperbola or abnormality in a time-critical scenario. The study also concluded that terrestrial-based GPR would, at the very least, provide first responders with situational awareness by narrowing down the SAR potential locations, excavation depths and reducing time for searching and recovering victims, as concurred by the Batang Kali SAR team. [ABSTRACT FROM AUTHOR]

In this work, we implemented line-of-sight (LoS) ray tracing functionality to investigate problems in millimetre-wave propagation modelling and network planning in 3D city model environments. First, we validated an existing LoS propagation probability model expressed as an exponential rule with the link distance. By fitting ray tracing simulation results under different scenarios to the model, the relationships between key parameters in the model and factors including the building density and the transmitter height were qualitatively analysed. Next, we developed a network planning framework for a multi-hop outdoor urban network by formulating a mixed-integer linear programming problem which minimises the overall deployment cost through optimal site selection. Taking the sets of potential site locations and potential links as inputs, we selected a subset of the sites that comprise a tree-structured network that satisfies all the user demands at a minimum deployment cost. We also analysed the time required for solving this optimisation problem in order to provide a prediction of the execution time for larger-sized problems. [ABSTRACT FROM AUTHOR]

This work presents X-ray computed tomography (XCT) as a dimensional quality assurance technique for micro-injection moulded polymeric test objects for the establishment of predictive quality models and quantifying soft-tool deformation. The results are compared against an industry standard laser-scanning-confocal microscope (LSCM) for the evaluation of XCT’s capability. The work demonstrates; (i) the exploitation of a XCT equipment for dimensional characterisation of micro-injection moulded products made out of polymers with adequate acquisition times, (ii) that acquired XCT data from the 3D visualisation of the micromouldings perform on par with a laser-scanning-confocal microscope in a quality prediction model, (iii) that the deformation occurring in an additively manufactured soft-tool can be quantified using XCT. The technique was particularly superior in volumetric data acquisition compared to LSCM in the filling prediction of the micromouldings. Better accuracy and repeatability in predicting the quality of the mouldings up to 92% achieved with XCT, in conjunction with an in-line collected soft-tool surface temperature data as an indirect quality assurance method. Given the capability of the XCT for the 3D data acquisition of polymeric miniature components, the approach described here has great potential in high-value micro-manufacturing process quality modelling for in-line quality assessment of miniature and added value products in data-rich contexts.Rendered 3D animation of the X-ray CT data: https://youtu.be/KwZty_yoDfs.

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

Archaeologists are the mediators between fragmented, and often contested, pasts and the momentary present. To record, organise, interpret, and reconstruct complex narratives of the past and to communicate these to present-day peers and the public, they use a wide range of visualisation methods. As such, visualisation methods form an intrinsic part of the representation of practical and intellectual findings, being crucial to knowledge production in archaeology. The adoption and adaptation of digital visualisation technology changes the way archaeologists shape new knowledge. However, for a discipline that is particularly concerned with how technology had an effect on past societies, for example, the impact of the potter’s wheel on local ceramic production strategies, archaeologists have a remarkably limited awareness of how current (digital) technology has an impact on their own visualisation practice and the subsequent knowledge production. This study presents the conceptual framework “tradition in transition,” which integrates technological and visualisation methodologies, and aims to provide a framework to analyse the underlying processes and mechanisms that shape and change the practice of creating visualisations.

3D data captured from archaeological excavations are frequently left to speak for themselves. 3D models of objects are uploaded to online viewing platforms, the tops or bottoms of surfaces are visualised in 2.5D, or both are reduced to 2D representations. Representations of excavation units, in particular, often remain incompletely processed as raw surface outputs, unable to be considered individual entities that represent the individual, volumetric units of excavation. Visualisations of such surfaces, whether as point clouds or meshes, are commonly viewed as an end result in and of themselves, when they could be considered the beginning of a fully volumetric way of recording and understanding the 3D archaeological record. In describing the creation of an archaeologically focused recording routine and a 3D-focused data processing workflow, this article provides the means to fill the void between excavation-unit surfaces, thereby producing an individual volumetric entity that corresponds to each excavation unit. Drawing on datasets from the Kaymakçı Archaeological Project (KAP) in western Turkey, the article shows the potential for programmatic creation of volumetric contextual units from 2D point cloud datasets, opening a world of possibilities and challenges for the development of a truly 3D archaeological practice.

Real time ship manoeuvring simulations are a valuable source of information in the detailed design phase of nautical studies. The feedback of pilots, which is not available for fast time simulations that are carried out by a computerized autopilot, is an important asset in the evaluation of the feasibility of ship manoeuvres. However, real time simulations are significantly more expensive in that realistic 3D visuals are needed so that the pilot can immerse himself in a sailing environment. Modelling and generating such 3D views is time consuming and requires expensive hardware and special skills. Real time simulations that offer only a 2D bird’s eye view for the execution of manoeuvres by pilots, can sometimes be used as a cheaper and faster alternative. This paper presents a case study that evaluates the nautical access to two harbours and discusses some of the advantages and disadvantages of a real time bird’s eye view setup.

Mapping the daily spatial mobility of university students in an urban environment is the focus of this paper. It uses the city of České Budějovice in the Czech Republic as a case study, employing three different research tools – travel diaries, GPS loggers and Smartphone applications. We focus our attention on the analysis of spatial patterns of mobility using basic mobility indicators (distance, number of daily trips, time spent mobility), travel behaviours (use of transport modes) and the detection of time-space bundles (spaces of concentration of particular time-space trajectories) within the city. We identified four main time-space bundles. Then we compare the three main research methods according to their tracking accuracy and informative value. The Smartphone applications (using the A-GPS technology) provided the best results for the spatial mobility of respondents, although the travel diaries method is still unique due to the extent of some socio-demographic and transport characteristics.

This article sets a framework for computer-based visualisations of cultural heritage sites. The project focuses on a workflow for a visualisation illustrated on a specific solution for the site of Çukuriçi Höyük, a tell settlement in Turkey. With the virtual presentation, an interdisciplinary research group tries to offer complex scientific results to the general public as well as to experts. The team utilised data acquisition and communication techniques, interpretative approaches, and dissemination methods. The three-dimensional (3D) outcome is based on a large amount of scientific data, usually available only via analogue or digital publications for a specialised audience. The work focused on constructed and personal authenticity to reach the viewer’s feelings. As an interpretative narrative, the daily lives of the inhabitants were selected. A communication plan was constructed, and a video animation with narration and a musical background was selected as the most appropriate communication tool. The movie was divided into four chapters (Introduction, Neolithic Period, Chalcolithic Period and Early Bronze Age Period). A separate webpage was designed to provide additional information when the video is viewed online. The webpage was divided into tabs that describe each chapter and three additional topics (Visualisation Process, Further Reading, and Credits). The video was shared in different settings, e.g. at public talks and on social media. The process resulted in a complex workflow that consists of several stages: data acquisition, first interpretation, 3D model creation, communication plan, second interpretation, 3D model adjustment, and dissemination output. Each stage of the workflow serves as an example to show the types of nodes these parts can include. The result is a flexible framework with predefined process stages, which can be re-used for similar projects. Highlights: • Computer-aided visualisations bring hidden cultural heritage to life –an individual outcome for Çukuriçi Höyük, a tell settlement in Turkey. • The interdisciplinary team combined data acquisition and communication techniques, interpretative approaches, and dissemination methods for achieving the best result. • Integrative framework optimises the information and communication potential of virtual visualisations with the help of pre-defined workflow stages.

Excavations atC¸ atalh¨oy¨uk have been ongoingfor over 20 years and have involvedmulti-national teams, a diverse range ofarchaeological specialists and a vast archiveof records. The task of marshalling this dataso that it can be useful not only at thepost-excavation stage, but also while makingdecisions in the field, is challenging. Here,members of the team reflect on the useof digital technology on-site to promote areflexive engagement with the archaeology.They explore how digital data in a fieldworkcontext can break down communicationbarriers between specialists, foster an inclusiveapproach to the excavation process andfacilitate reflexive engagement with recording and interpretation.

Background: 3D printing (3DP) or additive manufacturing has become an established technique in many industries for its fast production of objects with a large range of shapes and designs. Whereas it was initially used for rapid prototyping and product design evaluation, it has been applied more and more in small batch production as well. In the medical field 3DP has demonstrated its potential for various purposes, ranging from mere display of anatomy to printing of implants in tissue, although the latter application still needs to be translated to the clinical field and demonstrate usefulness. Applications of 3D printing: We will present an overview of the different clinical uses of 3DP in the process of fracture treatment and where these uses may prove to be beneficial. This will encompass the use for patient interaction, in which a physical model of the anatomy is used to explain the complexity of the fracture to the patient. We will also consider the preparation of the intervention in which the 3D model is used: i) to understand and appreciate the fractures lines, ii) to come up with a suitable classification, and iii) realize a surgical plan (Figure 1). A third use is the surgical simulation of the intervention, in which the surgeon conducts a trial surgery on a 3D printed model. Finally, 3DP can be employed in the design of surgical templates or guides that enable the surgeon to accurately transfer a digital preoperative plan to the surgical environment. Practical implications: Realizing a 3DP solution within a clinical environment can be challenging and often requires a multi-disciplinary approach. Hence, it is important to know the pitfalls of such an endeavor. We will present the different practical steps involved in the realization of a 3DP solution in clinical practice. This involves image acquisition, image segmentation for anatomical model generation, surgical preparation and/or modeling, and the actual 3DP the anatomical part or surgical guide. Finally, we will highlight important considerations that may be prohibitive for deploying a 3D-printed solution in the hospital. More specifically we will touch upon the legal boundaries that are set by the recent introduction of the Medical Device Regulation (MDR) but also on aspects of cost-efficiency of 3DP solutions. In this respect, some applications may find that 3D visualization of the anatomy is a valid alternative to 3DP and (future) developments in the field of artificial intelligence may reduce the cost of patient-tailored solutions.

Our understanding of cellular and structural biology has reached unprecedented levels of detail, and computer visualisation techniques can be used to create three-dimensional (3D) representations of cells and their environment that are useful in both teaching and research. However, extracting and integrating the relevant scientific data, and then presenting them in an effective way, can pose substantial computational and aesthetic challenges. Here we report how computer artists, experts in computer graphics and cell biologists have collaborated to produce a tool called Nanoscape that allows users to explore and interact with 3D representations of cells and their environment that are both scientifically accurate and visually appealing. We believe that using Nanoscape as an immersive learning application will lead to an improved understanding of the complexities of cellular scales, densities and interactions compared with traditional learning modalities.

Background and Aim: X‐ray micro computed tomography (micro‐CT) is a non‐destructive 3D imaging technique that has been applied to plant morphology and anatomical studies to gain a better understanding of physiological phenomena in vivo. It is particularly useful for imaging voids in undisturbed fragile tissues and therefore may be applied to the delicate flowers and soft berries of Vitis vinifera. The characterisation of gas spaces and channels can offer insights into the process of tissue aeration and this may have implications on cell function and vitality. We assessed the use of micro‐CT to visualise voids within these reproductive organs. Methods and Results: The internal structures of flowers and berries were captured through rapid micro‐CT scanning and subsequently were recreated in 3D using image processing. The relative positions of the developing flower parts encased within the flower cap were visualised. Low density/porous tissue was identified within the pedicel and receptacle, connecting the lenticels with the interior of the berry. Voids were present in the proximal mesocarp of mature berries forming a 'detachment zone' in both seeded and seedless cultivars. Voids permeated the mesocarp of mature seedless grape cultivars, but not seeded grapes. Conclusion: Micro‐CT offers new insights regarding the distribution of voids on the morphology and compositional heterogeneity of organs that are difficult to dissect and/or view with light microscopy. Significance of the Study: A better understanding of the physiology and functionality of grapevine reproductive tissues may be achieved by 3D visualisation of internal structure in vivo. [ABSTRACT FROM AUTHOR]

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

3D visualisations –including 3D scans and 3D reconstructions–designed as part of larger archaeology, history or cultural heritage projects are commonly shared with the public through online platforms that were not necessarily designed to host heritage representations and often fail to contextualize them. This paper seeks to evaluate whether five online platforms commonly used today to share 3D visualisations of heritage (Google Arts & Culture, CyArk, 3DHOP, Sketchfab and game engines) offer features that facilitate their scientific rigour and community participation, based on guidelines from International Council on Monuments and Sites(ICOMOS)and United Nations Educational, Scientific, and Cultural Organization(UNESCO). The author starts by summarizing recommendations from 32 international guidelines that are relevant to the 3D visualization of heritage, condensing them into nine key criteria: multi-disciplinary teams, objective-driven methodology and tools, careful documentation, type of reconstruction and level of certainty, authenticity, alternative hypotheses, multiple historical periods, respectful use of the heritage, and community engagement. The author proceeds to review the platforms above comparing their features with these nine recommendations and concludes that, while there are currently available features that could help to elevate the scientific rigour of the 3D visualisations and their contextualization to the public, they are not mandatory and are seldom used. The paper finishes with a recommendation for an information package to support3D visualisations of heritage on public online platforms. Highlights: • Online platforms for the 3D visualization of heritage fail to disclose what type of reconstruction it is and its level of certainty, struggling to balance community engagement vs scientific rigour of their contents. • ICOMOS and UNESCO recommendations regarding heritage are loosely followed on the reviewed platforms, and supporting documentation is often lacking. • Scientific rigour on these platforms could be elevated with supporting textual fields to disclose further information about each visualisation.

Abstract The last 50 years have seen an impressive development of mathematical methods for the analysis and processing of digital images, mostly in the context of photography, biomedical imaging and various forms of engineering. The arts have been mostly overlooked in this process, apart from a few exceptional works in the last 10 years. With the rapid emergence of digitisation in the arts, however, the arts domain is becoming increasingly receptive to digital image processing methods and the importance of paying attention to this therefore increases. In this paper we discuss a range of mathematical methods for digital image restoration and digital visualisation for illuminated manuscripts. The latter provide an interesting opportunity for digital manipulation because they traditionally remain physically untouched. At the same time they also serve as an example for the possibilities mathematics and digital restoration offer as a generic and objective toolkit for the arts.

Learning about the geometry and kinematics of bodies and their trajectories through space (or 'astrodynamics') is challenging due to its three-dimensional nature. To address this, the University of Bristol have developed simulation exercises for students based on a constructivist learning approach and variation learning theory. These exercises use orbit modelling software GMAT to develop skills and address misconceptions. The skills and misconceptions were drawn from the literature and suggested by students. Students were tested with a questionnaire both before and after performing the exercises. A survey at the end of the course provided feedback, which is discussed, along with proposals for further work. Overall, the study shows that 3D visualisation exercises may offer an interesting way to improve conceptual understanding of certain aspects of astrodynamics, particularly for those students struggling with the subject matter. [ABSTRACT FROM AUTHOR]

Inferring the body mass of fossil taxa, such as non‐avian dinosaurs, provides a powerful tool for interpreting physiological and ecological properties, as well as the ability to study these traits through deep time and within a macroevolutionary context. As a result, over the past 100 years a number of studies advanced methods for estimating mass in dinosaurs and other extinct taxa. These methods can be categorized into two major approaches: volumetric‐density (VD) and extant‐scaling (ES). The former receives the most attention in non‐avian dinosaurs and advanced appreciably over the last century: from initial physical scale models to three‐dimensional (3D) virtual techniques that utilize scanned data obtained from entire skeletons. The ES approach is most commonly applied to extinct members of crown clades but some equations are proposed and utilized in non‐avian dinosaurs. Because both approaches share a common goal, they are often viewed in opposition to one another. However, current palaeobiological research problems are often approach specific and, therefore, the decision to utilize a VD or ES approach is largely question dependent. In general, biomechanical and physiological studies benefit from the full‐body reconstruction provided through a VD approach, whereas large‐scale evolutionary and ecological studies require the extensive data sets afforded by an ES approach. This study summarizes both approaches to body mass estimation in stem‐group taxa, specifically non‐avian dinosaurs, and provides a comparative quantitative framework to reciprocally illuminate and corroborate VD and ES approaches. The results indicate that mass estimates are largely consistent between approaches: 73% of VD reconstructions occur within the expected 95% prediction intervals of the ES relationship. However, almost three quarters of outliers occur below the lower 95% prediction interval, indicating that VD mass estimates are, on average, lower than would be expected given their stylopodial circumferences. Inconsistencies (high residual and per cent prediction deviation values) are recovered to a varying degree among all major dinosaurian clades along with an overall tendency for larger deviations between approaches among small‐bodied taxa. Nonetheless, our results indicate a strong corroboration between recent iterations of the VD approach based on 3D specimen scans suggesting that our current understanding of size in dinosaurs, and hence its biological correlates, has improved over time. We advance that VD and ES approaches have fundamentally (metrically) different advantages and, hence, the comparative framework used and advocated here combines the accuracy afforded by ES with the precision provided by VD and permits the rapid identification of discrepancies with the potential to open new areas of discussion. [ABSTRACT FROM AUTHOR]

Outside the main mountain ranges and high North and South regions, individual isolated very small glaciers are the only glacier remnants and exceptional high-mountain active geomorphosites, which can be used to represent climate change consequences first hand to the local general public. The isolated, very small Triglav glacier in Slovenia was used to represent 3D glacier area changes for the period 1829–2016, together with long-term meteorological changes. Spatio-temporal changes of the glacier were derived mainly from old images and postcards with the help of interactive orientation (monoplotting), which enables the acquisition of a 3D glacier boundary from a single image by using a modern detailed digital elevation model. Very intuitive 3D visualisation was prepared, which shows the spatio-temporal changes of the glacier area, together with changes in average annual temperature and maximum annual snow depth. The last two are presented by colour palettes, where red colours represent stages when temperatures or maximum snow depths deviate from long-term averages in a negative way, meaning accelerating the glacier area reduction. Blue colours are used for stages when these parameters deviate from long-term averages in a positive way, meaning preserving the glacier area. From this 3D visualisation, one can easily recognise which meteorological parameter is the most important for the Triglav glacier preservation; this is the maximum annual snow depth. Such kind of 3D visualisation has a great potential for promotion of other active or evolving passive geomorphosites too. [ABSTRACT FROM AUTHOR]

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